CN201086309Y

CN201086309Y - Lacunaris cutter

Info

Publication number: CN201086309Y
Application number: CNU2007201698232U
Authority: CN
Inventors: 刘长柏; 王亚东; 周桓; 许刚
Original assignee: Beijing New Building Material Group Co Ltd
Current assignee: Beijing New Building Material Group Co Ltd
Priority date: 2007-07-20
Filing date: 2007-07-20
Publication date: 2008-07-16
Anticipated expiration: 2017-07-20

Abstract

The utility model discloses multihole cutting knife, which comprises a fixed cutting knife and a mobile cutting knife. The utility model is characterized in that the fixed cutting knife and the mobile cutting knife are provided with more than two cutting knife cavities with corresponding size to the size of profiles, respectively. The cutting knife cavities on the fixed cutting knife and the mobile cutting knife have proper distances from each other respectively. When replacing each variety of products, products are recombined directly through a plurality of cutting knife cavities on a cutting knife die. In this way, one cutting knife can cut profile products of different specifications, thus solving the problem that the cutting knife die must be replaced when the prior product is replaced.

Description

The porous type cutting knife

Technical field

The utility model relates to a kind of cutter of quick production keel, relate in particular to a kind of can multiposition the cutting knife of fast shut-off keel section bar simultaneously.

Background technology

In the equipment of present domestic production keel, every cover cutting knife mould (containing moving cutting tool, fixed cutting tool) all can only cut off fixing product, therefore changing each kind product must change the cutting knife mould, producing under the busy situation, not only seriously reduced production efficiency but also increased workman's working strength greatly.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of needn't change the porous type cutting knife that corresponding cutting knife mould can be sheared the different size section bar.

A kind of porous type cutting knife of the present utility model comprises: fixed cutting tool and moving cutting tool, it is characterized in that, offering respectively on fixed cutting tool and the moving cutting tool and the corresponding cutting knife die cavity more than 2 of profile size, has suitable spacing respectively between the cutting knife die cavity of described fixed cutting tool and moving cutting tool.

Preferably, the angle theta of the direction of motion of the main cross sections line segment of the cutting knife die cavity of described fixed cutting tool and described moving cutting tool is 30～150 degree.

The utility model directly reconfigures by a plurality of cutting knife die cavities on the cutting knife mould when changing each kind product, has realized the section bar product of same cutting knife cut-out different size, thereby the conversion that has solved existing product must be changed the problem of cutting knife mould.

Description of drawings

Fig. 1 a, b are respectively that the utility model is fixed, the structural representation of moving cutting tool.

Mounting structure front view when Fig. 2 is the utility model use.

Fig. 3 is the right view of Fig. 2.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done detailed explanation.

Shown in Fig. 1 a, b, the utility model comprises: fixed cutting tool 1 and moving cutting tool 2 offer respectively on fixed cutting tool 1 and moving cutting tool 2 and the corresponding cutting

knife die cavity

11,21 more than 2 of section bar 3 sizes.Have suitable spacing between the cutting knife die cavity 11,, guarantee simultaneously that simultaneously cutting knife itself has enough intensity when cutting off a plurality of products of different specifications section bar, the cracked phenomenon of cutting knife die cavity can not in use take place effectively to utilize the working face of cutting knife.For example, when cutting off the steel plate of 0.5-1.5mm thickness, different cutting

knife die cavities

21,11 spacings on moving cutting tool 2, the fixed cutting tool 1 can not be lower than 20mm, and cutting

knife die cavity

11,21 can not be less than 25mm to the distance of limit portion.When cutting off different-thickness, unlike material or big section (as surpassing 100mm) product, the spacing of different cutting

knife die cavities

11,21 needs suitably to adjust.

Shown in Fig. 2～3, the angle theta of the main cross sections line segment of cutting knife die cavity 11 and the direction of motion of moving cutting tool 2 (direction of arrow indication) must can better easily be cut off section bar 3 like this at 30 degree between 150 degree.When the utility model uses, fixed cutting tool 1 is installed in the fixedly square frame groove 5 of knife rest 4, the square open-work of moving cutting tool 2 and the boss of oil cylinder piston bar are matched, and simultaneously (not shown go out) lived by being fixed on two slide blocks extruding on the knife rest 4 in the both sides of moving cutting tool 2.Difform section bar 3 passes fixed cutting tool 1 and moving cutting tool 2, at this moment by the drive lower slider of moving cutting tool 2 at oil cylinder piston, thereby cuts off section bar 3.

Claims

1. porous type cutting knife, comprise: fixed cutting tool and moving cutting tool, it is characterized in that, having suitable spacing respectively between the cutting knife die cavity of described fixed cutting tool and moving cutting tool offering respectively on fixed cutting tool and the moving cutting tool and the corresponding cutting knife die cavity more than 2 of profile size.

2. a kind of porous type cutting knife as claimed in claim 1 is characterized in that, the angle theta of the main cross sections line segment of the cutting knife die cavity of described fixed cutting tool and the direction of motion of described moving cutting tool is 30～150 degree.