CN202101882U

CN202101882U - Circular stamping knife

Info

Publication number: CN202101882U
Application number: CN2011200280682U
Authority: CN
Inventors: 苗翠霞; 陈宏愿; 于洋
Original assignee: China Petroleum and Chemical Corp
Current assignee: China Petroleum and Chemical Corp
Priority date: 2011-01-27
Filing date: 2011-01-27
Publication date: 2012-01-04
Anticipated expiration: 2021-01-27

Abstract

The utility model aims at providing a circular stamping knife, which meets standard requests and is used for punching test pieces for tests such as atomization and the like. The circular stamping knife comprises a locating ring, fastening screws, a spacing ring, a pressing plate, an ejection spring, a spacing screw, a cutter and a carrier plate. The carrier plate, the cutter and the spacing ring are assembled together through a plurality of fastening screws; the carrier plate is assembled with the pressing plate together through the spacing screw; the pressing plate is positioned below the cutter; and the cutter is circular. The stamping knife is arranged on a punching machine through the locating ring; when the punching machine moves downwards to punch the test pieces, pressure acts on the pressing plate to drive the ejection spring to retract; after single punching ends, punching pressure is released, the ejection spring restores, the test pieces are ejected outside through the pressing plate so as to finish punching. The circular stamping knife has a rational structure and is easy to operate so that test pieces with smooth edges and uniform size can be manufactured; moreover, the accuracy and reproducibility of testing data can be ensured.

Description

A kind of circular stamping knife

Technical field

The utility model relates to a kind of circular stamping knife, in order to prepare circular test piece.

Background technology

ISO 6452:2007 " atomization characteristics of rubber or plastic coat fabric automobile interior trim material is measured " regulation: like sample is goods; Should cut diameter from goods is (80

1) test piece of mm, the thickness of test piece can be maximum to 10mm.Still there is not the suitable instrument of producing circular specimen at present both at home and abroad; Like material is soft leather and fur products, and the user adopts existing rotary cutting knife still can produce test piece, but as be other materials; Owing to adopt above-mentioned rotary cutting knife can't produce standard compliant test piece, the user adopts the mode of cutting out usually.This mode exists tangible drawback, and is thinner like goods or test piece, produces test piece with the mode of cutting out, and the institute test piece edge that obtains is uneven, and this test piece places the beaker of internal diameter 83mm, is easy to bending or warpage, thereby influences test findings.Thicker like sheet thickness, then can't produce test piece with the mode of cutting out.

Chinese patent (CN200620010391.6) discloses a kind of pair of tongue stamping knife, and stamping knife comprises handle of a knife and cutter head, is fluted body in the middle of the cutter head, is a kind of motor coil machining tool, and this stamping knife is simple in structure, and is inappropriate for die-cut circular specimen.

The wooden plate punching and cutting forming machine of one Chinese patent application (CN97245327.X) discloses a kind of hollow circular cutlery, is used with bicker, can go out circular wooden unit.But this cutlery is simple in structure, is not with ejecting unit, uses the die-cut atomizing sample of such cutlery, and sample is embedded in the cutlery easily, must manually eject sample, and this pushing method center of effort is concentrated, and causes the test piece distortion easily, influences test findings.

The utility model content

The utility model is for the circular stamping knife that provides a kind of conformance with standard to require, and uses test piece in order to the stamping-out spray test.The utility model is rational in infrastructure, and is easy to operate, can produce that the edge is smooth, the uniform test piece of size, remedies the deficiency of existing spray test method of preparing sample.

For realizing above-mentioned purpose, the utility model provides a kind of circular stamping knife, comprises centring ring, trip bolt, spacing ring, pressing plate, ejector spring, distance screws, cutting knife, top board.Top board is assembled to through some trip bolts with cutting knife, spacing ring, and distance screws fits together top board and pressing plate, and pressing plate is positioned at the cutting knife below, and cutting knife is circular.Stamping knife is mounted on the bicker through centring ring, and when the descending stamping-out test piece of bicker, pressure acts on and drives the ejector spring retraction on the pressing plate, and when the die-cut end of single, die-cut pressure discharges, the ejector spring return, and pressing plate ejects test piece, die-cut completion.

The utility model is the stamping knife in order to provide a kind of conformance with standard to require; This stamping knife does not receive the restriction of material property and goods (or test piece) thickness; Use this stamping knife to wait the test sample preparation for atomizing; Can obtain that the edge is smooth, the uniform test piece of size, farthest reduce the error that the sample preparation link is brought, guarantee the accuracy and the repeatability of test figure.The utility model is rational in infrastructure, and is easy to operate, can remedy the deficiency of existing circular test piece method of preparing sample.

Description of drawings

Fig. 1 is the stamping knife vertical view.

Fig. 2 is the stamping knife sectional view.

Embodiment

In Fig. 2: 1 is that centring ring, 2,3,4 is that trip bolt, 5 is that spacing ring, 6 is that pressing plate, 7 is that ejector spring, 8 is that distance screws, 9 is that cutting knife, 10 is a top board.

The utility model is a kind of circular stamping knife, comprises centring ring, trip bolt, spacing ring, pressing plate, ejector spring, distance screws, cutting knife, top board.Top board is assembled to through some trip bolts with cutting knife, spacing ring, and distance screws fits together top board and pressing plate, and pressing plate is positioned at the cutting knife below, and cutting knife is circular.Stamping knife is mounted on the bicker through centring ring, and when the descending stamping-out test piece of bicker, pressure acts on and drives the ejector spring retraction on the pressing plate, and when the die-cut end of single, die-cut pressure discharges, the ejector spring return, and pressing plate ejects test piece, die-cut completion.

In use, the installing and locating circle places the die-cut base of bicker with test piece again on bicker; Distance between adjustment stamping knife and the test piece; Press the play button of bicker, the descending die-cut test piece of stamping knife, the cylinder return also discharges die-cut pressure; Ejector spring and distance screws eject pressing plate, and test piece ejects.

Claims

1. circular stamping knife; It is characterized in that: comprise centring ring, trip bolt, spacing ring, pressing plate, ejector spring, distance screws, cutting knife, top board; Top board is assembled to through trip bolt with cutting knife, spacing ring, and distance screws fits together top board and pressing plate, and pressing plate is positioned at the cutting knife below; Cutting knife is circular, and stamping knife is mounted on the bicker through centring ring.