CN201120299Y

CN201120299Y - Kneader blade

Info

Publication number: CN201120299Y
Application number: CNU200720172724XU
Authority: CN
Inventors: 陈钦鹏
Original assignee: QIXIN STATIONERY CO Ltd SHENZHEN
Current assignee: Shenzhen Group PLC Of One Mind
Priority date: 2007-10-26
Filing date: 2007-10-26
Publication date: 2008-09-24
Anticipated expiration: 2017-10-26

Abstract

The utility model provides a shredder blade, comprising a main blade and a plurality of knife edges evenly distributed around the main blade; each knife edge is formed by folded partial blade material flanging; a shaft hole is arranged right in the middle of the main blade; the periphery of the shaft hole is encircled by a plurality of deep-drawing slots; deep-drawing patches perpendicular to the main blade are formed on the circumference of the deep-drawing slots; a projecting ring concentric with the shaft hole is arranged at one side of the concave surface of each deep-drawing slot of the main blade. The shredder blade of the utility model has a projecting ring arranged at one side; when the blade is covered on a knife shaft, the projecting rings on two shredder blades are combined together to form a cutting ring; the cutting ring can not only fix the blades but also keep the distance between blades, so as to save the production costs and mounting time of the cutting ring and reduce the production costs of the shredder.

Description

Kneader bar

Technical field

The utility model relates to the shredder field, relates in particular to kneader bar.

Background technology

Shredder is widely used in various office spaces as a kind of office equipment, and its main purpose is that various paper documents are pulverized, and leaks to prevent sensitive information.The blade of shredder is as the critical piece of cutting paper spare, and its quality is most important for the overall performance of shredder.

Figure 1A-B has disclosed existing a kind of kneader bar and manufacture method thereof, and this blade comprises main body sheet 10 and some outstanding some blades 12 that are arranged on main body sheet 10 all sides of an annular.The manufacture method of this blade comprises following operation: (1) blanking operation is placed on suitable worker's station location with square material; (2) blanking operation is with the circular main body sheet of above-mentioned square materials processing and protrude in the blade of main body sheet week side; (3) punching operation is established a circular axis hole 13 at the centre punch of above-mentioned circular body sheet; (4) die-cut blade operation is carried out above-mentioned blade die-cut.

Generally, kneader bar will be installed on the cutter shaft and use, existing kneader bar is installed in the state on the cutter shaft, as shown in Figure 2, two blades 14 are one group, be enclosed within together above the cutter shaft 15, every group of blade intermediate demand adds the distance that a cutter ring 16 fixes blade and keeps every group of blade.Use this blade, the installation procedure complexity has strengthened the production cost of shredder.

The utility model content

For addressing the above problem, the object of the present invention is to provide a kind of kneader bar.

In order to achieve the above object, the technical solution of the utility model is: a kind of kneader bar, it comprises a main body sheet, be evenly distributed on some blades of this side in week, described blade is formed by the doubling of part blade material flange, the center position of described main body sheet is provided with an axis hole, the periphery of described axis hole is surrounded with some pull and stretch grooves, and all sides of described pull and stretch groove are formed with the pull and stretch sheet perpendicular to the main body sheet, and described main body sheet pull and stretch geosynclinal concave face one side is provided with a prominent ring concentric with axis hole.

Described blade is formed by the blade portion flange or the stretching of extending from the main body sheet outside.

Described main body sheet is an annular.

Described blade portion is the folding shape structure of acute angle, and the wrap direction of each blade portion is identical.

Described pull and stretch groove symmetry or be evenly distributed on the periphery of axis hole.

Described pull and stretch sheet all extends to equidirectional from the main body sheet.

Described prominent ring internal diameter is identical with shaft hole diameter.

Described prominent ring inner wall shape is identical with the shaft hole inner wall shape.

The concentric prominent ring of described and axis hole is that circumference continuous circular shape or circumference are interrupted annular.

One side of the utility model kneader bar is provided with a prominent ring, when being enclosed within on the cutter shaft, the prominent ring constipation of two kneader bars lumps together, form a cutter ring, this cutter ring not only can fixed blade but also can have been kept the distance of every group of blade, can save the cost of manufacture and the set-up time of cutter ring like this, reduce the shredder production cost.

Description of drawings

Figure 1A-B is existing kneader bar structural representation;

Fig. 2 is the scheme of installation that existing kneader bar is installed on cutter shaft;

Fig. 3 A-B is the utility model kneader bar structural representation;

Fig. 4 A-B is the utility model kneader bar vertical profile structural representation;

Fig. 5 is the utility model kneader bar perspective view;

Fig. 6 is the scheme of installation that the utility model kneader bar is installed on cutter shaft.

The specific embodiment

See also Fig. 3 to Fig. 5, a kind of kneader bar of the utility model comprises a main body sheet 20, is evenly distributed on some blades 21 of this side in week; Described main body sheet is an annular; Described blade is formed by the blade portion flange that extends from the main body sheet outside, and described blade portion is the folding shape structure of acute angle, and the wrap direction of each blade portion is identical; The center position of described main body sheet is provided with an axis hole 23; The periphery of described axis hole is surrounded with some pull and stretch grooves 24, and the pull and stretch groove is symmetrically distributed in the periphery of axis hole; All sides of described pull and stretch groove are formed with the pull and stretch sheet 25 perpendicular to the main body sheet, and the pull and stretch sheet all extends to equidirectional from the main body sheet; Described main body sheet pull and stretch geosynclinal concave face one side is provided with a prominent ring 22 concentric with axis hole, and prominent ring internal diameter is identical with shaft hole diameter, and prominent ring inner wall shape is identical with the shaft hole inner wall shape.The prominent ring concentric with axis hole is the circumference continuous circular shape.

Described blade can also be stretched by the blade portion of extending from the main body sheet outside and form, and described pull and stretch groove is evenly distributed on the periphery of axis hole, and it is annular that the concentric prominent ring of described and axis hole is that circumference is interrupted.

See also Fig. 6, in installation process, the axis hole 23 of one cutter shaft, 30 break-through main body sheets 20, two kneader bars are one group, blade does not have the adjacent arrangement of prominent ring one side on the same group, the prominent ring constipation of two adjacent groups kneader bar lumps together, and forms a cutter ring, and this cutter ring not only can fixed blade but also can have been kept the distance of every group of blade.

Claims

1, a kind of kneader bar, it comprises a main body sheet, be evenly distributed on some blades of this side in week, described blade is formed by the doubling of part blade material flange, the center position of described main body sheet is provided with an axis hole, the periphery of described axis hole is surrounded with some pull and stretch grooves, all sides of described pull and stretch groove are formed with the pull and stretch sheet perpendicular to the main body sheet, it is characterized in that: described main body sheet pull and stretch geosynclinal concave face one side is provided with a prominent ring concentric with axis hole.

2, kneader bar as claimed in claim 1 is characterized in that: described blade is formed by the blade portion flange or the stretching of extending from the main body sheet outside.

3, kneader bar as claimed in claim 2 is characterized in that: described main body sheet is an annular.

4, kneader bar as claimed in claim 3 is characterized in that: described blade portion is the folding shape structure of acute angle, and the wrap direction of each blade portion is identical.

5, kneader bar as claimed in claim 4 is characterized in that: described pull and stretch groove symmetry or be evenly distributed on the periphery of axis hole.

6, as claim 1 or 5 described kneader bars, it is characterized in that: described pull and stretch sheet all extends to equidirectional from the main body sheet.

7, kneader bar as claimed in claim 1 is characterized in that: described prominent ring internal diameter is identical with shaft hole diameter.

8, kneader bar as claimed in claim 1 is characterized in that: described prominent ring inner wall shape is identical with the shaft hole inner wall shape.

9, kneader bar as claimed in claim 1 is characterized in that: the prominent ring concentric with axis hole is that circumference continuous circular shape or circumference are interrupted annular.