CN201701990U

CN201701990U - Gang tool and blade units thereof

Info

Publication number: CN201701990U
Application number: CN2010201465361U
Authority: CN
Inventors: 钟奋强
Original assignee: ZENGCHENG CITY XINTE ELECTRIC APPLIANCE CO Ltd
Current assignee: Guangzhou COMET Group Co., Ltd.
Priority date: 2010-03-30
Filing date: 2010-03-30
Publication date: 2011-01-12
Anticipated expiration: 2020-03-30

Abstract

The utility model discloses a gang tool and blade units thereof. Upper ends of two upper blade units are connected axially so as to form the gang tool. Each blade unit is circular and provided with two smooth end surfaces, an axial hole is arranged in the middle of the blade, at least one cutting edge extending radially is arranged around the periphery of the blade, and at least one end surface of the blade is provided with at least one annular groove. By aid of the grooves arranged on the blade units, metal materials of the blades can be saved and production cost thereof is reduced, and then the weight of the gang tool combined by the two blade units is reduced correspondingly. Therefore, paper shredder knife rolls produced based on the gang tool has the advantages of light weight, low cost and capability of saving materials.

Description

Conjuncted cutter and blade monomer thereof

[technical field]

The utility model relates to the member of shredder rotor, relates in particular to the conjuncted cutter that it adopts, and further relates to the blade monomer of forming this conjuncted cutter.

[technical background]

Shredder mainly carries out cut paper by adjacent two rotors side by side of its paper shredder, each rotor is installed Volleyball Association's body cutter along its axial one, each conjuncted cutter is made up of two blade monomers, in the same rotor, clamp a comb sheet between the conjuncted cutter, so that closely cooperate with row's blade, when two such rotors are close to setting side by side, and the conjuncted cutter of different rotors is staggered when being provided with, can realize cut paper by the engagement of staggering mutually between the conjuncted cutter each other, in this course, the comb sheet is to keep static by extra installed part, it plays the effect of positioning blade and combing paper activity space, and the set conjuncted cutter in position then can utilize the rotation of rotor to carry out shredded paper with its blade.

Traditional blade monomer part that is formed in one, the circular body that comprises a tape spool hole, have positive and negative two smooth flat, the periphery of main body is provided with blade, axially merge two blades and become conjuncted cutter, utilize the cooperation of its blade each other, under the drive of rotor, these double cutting edges just can push, isolate and shred paper.Paper is transversely shredded by a plurality of double cutting edges with structure described herein uniformly at it, the width of its formed paper scrap depends on and equals two blades by subsides also is conjuncted cutter general thickness in the axial direction, because blade and blade are integrated, so also this general thickness also is the overall width of the longitudinal section of double cutting edge.

In theory, integrated blade can be made thinlyyer, its general thickness was littler when such two blades were combined, can obtain more tiny paper scrap during cut paper then, yet, with a piece of paper is example, if will obtain more tiny paper scrap effect, the longitudinally on its shredded paper limit of inevitable requirement then, also be rotor axially on, conjuncted cutter quantity in the unit length is wanted corresponding increase, this shows, the change of the thickness degree when blade is one-body molded, for the shredder rotor generally speaking, do not have the meaning of saving material, the growth that reduces often to bring knife number of the volume of single blade.

But, the cost of the metal material that blade adopted has occupied sizable part of the overall cost of shredder rotor, the saving of blade material helps reducing the cost of rotor, in market competition perfervid present stage, overcome the quantity of blade and the contradiction between the volume, have positive commercial effect.

In addition, blade is one of necessary metalwork in the rotor, and there are proportional relation in the weight of blade and the weight of rotor, and the decline of the weight of rotor has determined the weight of rotor to a great extent.

[utility model content]

First purpose of the present utility model will overcome above-mentioned deficiency exactly, and the blade monomer that provides a kind of shredder rotor to use makes it further save most of material under the prerequisite that keeps existing axial width, thereby reduces production costs;

The light-duty conjuncted cutter that provides a kind of shredder rotor to use is provided another purpose of the present utility model, to assemble the blade monomer of first purpose.

For realizing this purpose, the utility model adopts following technical scheme:

A kind of blade monomer is used to constitute the conjuncted cutter that the shredder rotor is adopted, and the blade monomer is rounded, have two level and smooth end faces, and the middle part is provided with axis hole, is provided with at least one blade that radially extends around its periphery, and at least one end face is provided with at least one annular recess.

Preferable, described two end faces are equipped with described groove, and the internal diameter of the groove of one of described end face is greater than the external diameter of two groove of end face.Be formed with the internal tooth that is meshed with the rotor mandrel in the axis hole of described blade monomer week.The radial thickness of described groove is 1/2 of a blade monomer radial thickness.

A kind of conjuncted cutter, as the cut paper cutter of shredder rotor, it comprises two aforesaid blade monomers, two blade monomers are symmetrical closely by pasting.

Compared with prior art, owing on the blade monomer, be provided with groove, groove part can account for a half thickness of whole blade, the material of groove part is just saved, when the cumulative volume of the groove on two end faces of blade monomer accounted near the cumulative volume of blade monomer most, the blade monomer can be saved nearly half metal material under the condition of set maximum axial thickness and maximum outside diameter, reduce the cost of blade monomer thus, also reduced its weight.Thereby, use the conjuncted cutter of this kind blade monomer, and use the material and the cost of the shredder rotor of this conjuncted cutter all can decline to a great extent.

[description of drawings]

Fig. 1 is the assembling assumption diagram of conjuncted cutter of the present utility model;

Fig. 2 is the plan view of the forward end face of blade monomer of the present utility model;

Fig. 3 is the plan view of the reverse end face of blade monomer of the present utility model

Fig. 4 is an A-A cutaway view among Fig. 2.

[specific embodiment]

Below in conjunction with drawings and Examples the utility model is further described:

Conjuncted cutter of the present utility model is used for the shredder rotor, and by several conjuncted cuttves of row are installed on the mandrel of shredder rotor, folder is established the comb sheet between conjuncted cutter and the conjuncted cutter, can realize the integral installation of rotor.

See also Fig. 1, conjuncted cutter of the present utility model comprise two fully the

blade monomers

5,5 of symmetry ', two blade monomers 5,5 ' in the axial direction back-to-back closely by subsides.

In conjunction with Fig. 1, Fig. 2 and Fig. 3, blade monomer 5,5 ' integral body is positive circle, its middle part is provided with axis hole 50, be designed to dentation 503 week in the axis hole 50, so that be meshed chucking with the mandrel (not shown) of rotor, on the periphery 53 of blade monomer 5, equidistantly be provided with a plurality of blades 54 that radially extend around its periphery 53, blade monomer 5 has two level and

smooth end face

5a, 5b, at this to level and smooth end face 5a, the last further design of 5b has

annular recess

51,52.

As Fig. 1, Fig. 2 and shown in Figure 4, blade monomer 5,5 ' forward end face 5a on, be provided with an annular recess 52 near the periphery of blade monomer 5, the degree of depth of this groove 52 also is 1/2 of its thickness in the axial direction axial integral thickness (width) of accounting for blade monomer 5.

In like manner, as Fig. 1, Fig. 3 and shown in Figure 4, on the 5b of end face dorsad of blade monomer 5, be provided with an annular recess 51 near this axis hole 50, the degree of depth of this groove 51 also is 1/2 of its thickness in the axial direction axial integral thickness (width) of accounting for blade monomer 5.

There is not overlapping in groove 52 on the forward end face 5a of blade monomer 5 with groove 51 on the end face 5b dorsad, and promptly the internal diameter of the groove 52 on the forward end face 5a is greater than the external diameter of the groove 51 on the end face 5b dorsad.Finer, the groove 52 that described forward end face 5a goes up near its periphery 53 can extend to the setting of blade 54 places.Thus, as shown in Figure 1 and Figure 4, behind two blade monomers 5,5 ' conjuncted cutter of composition, conjuncted cutter inside will present a hollow part (not label), and two blade monomers 5,5 ' to each other then with end face 5b closely by pasting.

By the combination of Fig. 1 and Fig. 4 also as can be seen, for this at two end face 5a, groove 51 all is set on the 5b, 52 embodiment, the groove 52 (or 51) that an end face 5a (or 5b) go up to form then forms boss 52 ' (or 51 ') on another end face 5b (or 5a), therefore, and in the utility model, this conception of species of utilizing a boss on the end face to replace the groove on another end face is replaced, and is consistent in spiritual essence of the present utility model.

More than disclosed the embodiment of the best of the present utility model, in some not shown embodiment, can be only the blade monomer only on an end face described groove is set, the shape of described groove also can change flexibly.

This shows,, can save the metal material of blade by on the blade monomer, groove being set, reduce its production cost, thereby the weight of the conjuncted cutter of being made up of two blade monomers also can correspondingly descend, and the shredder rotor of being produced thus just has light-duty province material, advantage with low cost.

Although the utility model only provides above embodiment, but, those skilled in the art are after reading over this specification, in conjunction with common practise, should be able to associate the more specific embodiment, but the spirit of the not unconventional the utility model claim of such specific embodiment, any type of being equal to, replace or simple modification all should be considered as by the included embodiment of the utility model.

Claims

1. blade monomer, be used to constitute the conjuncted cutter that the shredder rotor is adopted, the blade monomer is rounded, have two level and smooth end faces, and the middle part is provided with axis hole, be provided with at least one blade that radially extends around its periphery, it is characterized in that: at least one end face is provided with at least one annular recess.

2. blade monomer according to claim 1 is characterized in that, described two end faces are equipped with described groove.

3. blade monomer according to claim 2 is characterized in that, the internal diameter of the groove of one of described end face is greater than the external diameter of two groove of end face.

4. according to any described blade monomer in the claim 1 to 3, it is characterized in that the radial thickness of described groove is 1/2 of a blade monomer radial thickness.

5. according to any described blade monomer in the claim 1 to 3, it is characterized in that, be formed with the internal tooth that is meshed with the rotor mandrel in the axis hole of described blade monomer week.

6. conjuncted cutter, the cut paper cutter as the shredder rotor is characterized in that it comprises two as any described blade monomer in the claim 1 to 5, two blade monomers are symmetrical closely by subsides.