CN205462589U - High reliability shredded paper cutter - Google Patents

Abstract

The utility model belongs to the technical field of the shredded paper, concretely relates to high reliability shredded paper cutter has knife rest and integral key shaft, is equipped with a plurality of deflectors on the knife rest, and each deflector slice array on the knife rest sets up, and the through -hole has all been opened to every deflector, all rotates in each through -hole and is connected with the spacer ring, and the integral key shaft cooperation sets up in each spacer ring, and the cover is equipped with a plurality of blades on the integral key shaft, and each blade is all located between the adjacent deflector. The utility model discloses beneficial effect: integral key shaft area of contact is big, and cooperation utilization ratio and intensity are high, and many difficult smooth teeth of contact point and damage spacer ring with blade and spacer ring are being greater than the regular hexagon arbor with sectional area under the circumference diameter, and intensity is higher than the arbor that sectional area of the same kind is little, knife tip range effect angle is little, and the shredded paper paper does not wrinkle, and the kneader does not rock, and the operating circuit is stable, and the reliability is high, the spline diameter of axle is little, and the material is economized, and is with low costs, can break to pieces more quantity paper, the sexual valence relative altitude, the integral key shaft can cooperate the multiple -edged tool wantonly, and is standardized competent.

Description

A kind of high reliability paper shredding cutters

Technical field

This utility model belongs to shredded paper technical field, is specifically related to a kind of high reliability paper shredding cutters.

Background technology

Along with the progress of society, the development of technology, conservative technology or business secret are the most more come by company or individual More paying attention to, particularly note has the waste paper of technology or business secret, the most at will abandons, but by broken Waste Paper Handling is fragmentated by paper machine, and the routine office work that classified document is pulverized can be used rapidly by shredder as a kind of Product, the demand of shredder gets more and more.

At present, the cutter of the cutting rod official form for filing a lawsuit of shredder includes cutter shaft, guide plate 3 and sets on cutter shaft is axial The some blades 5 put, cutter shaft is interspersed in guide plate 3 by spacer ring 4.Existing cutter shaft is generally two kinds of shapes Formula: regular hexagon cutter shaft (with reference to Fig. 1) and dodecagon cutter shaft (with reference to Fig. 2).

Seeing Fig. 1, spacer ring 4 sectional area of regular hexagon cutter shaft is less, big by force intensity and wide at six angles Spending less, general spacer ring 4 is plastics in addition, albefaction easily occurs, then at the stress at 4 six angles of spacer ring Easily there is fracture damage.

Seeing Fig. 2, dodecagon cutter shaft only has 12 points and limit, blade 5 and spacer ring 4 to be subject to due to contact surface In the case of power is relatively big, easy slip teeth.

Additionally, either regular hexagon cutter shaft, or dodecagon cutter shaft, the anglec of rotation is relatively big, shredded paper Cutter shaft is shredded paper when, and the easy gauffer of paper, machine easily rocks (nodding), and shredder electric current is unstable, can Poor by property.Under required broken a number of paper trail, according to Force Calculation, then required cutter shaft cuts Area is certain value, because regular hexagon cutter shaft cross section is less than dodecagon cutter shaft, so this regular hexagon cutter The circumscribed circle diameter of axle more than dodecagon cutter shaft circumscribed circle diameter, therefore, regular hexagon cutter shaft material Material expends many, easily increases cost.Multiple blade is frequently included, below six of which blade on one blade Cutter, generally requires regular hexagon cutter shaft according to calculating and carries out transmitting moment of torsion；And cutters more than six blades, Generally require dodecagon cutter shaft according to calculating to carry out transmitting moment of torsion.Different blade quantity needs different Cutter shaft coordinates, and standardization is low.

Summary of the invention

The purpose of this utility model is the defect overcoming prior art to exist, it is provided that a kind of spacer ring damage ratio Low, spacer ring and blade are difficult to slip teeth, shredder working stability, and the cutter shaft diameter of axle is little, can coordinate The high reliability paper shredding cutters of the cutter of various multi-blade.

This utility model solves its technical problem and be the technical scheme is that a kind of high reliability shredded paper Cutter, has knife rest and splined shaft, and knife rest is fixed with some guide plates, and all guide plates are at knife rest On length direction, sheet-like array is arranged, and each guide plate all has through hole, equal company of rotation in each through hole Being connected to spacer ring, splined shaft is equipped with in all spacer rings, splined shaft axially on be arranged with some blades, Every piece of blade is all located between adjacent two pieces of guide plates.

Some blade sleeves of the present utility model are located on splined shaft, form rotary cutter, and it is by some Guide plate is fixed on knife rest.Owing to splined shaft matches with spacer ring, and spacer ring is rotationally connected with guiding In the through hole of plate, so rotary cutter is the most rotatable.In the case of same circumscribed circle, because of regular hexagon Cutter shaft cross section is less than dodecagon cutter shaft, so for ensureing the same cross-sectional area needed for broken paper, this is just The circumscribed circle diameter of hexagon cutter shaft more than dodecagon cutter shaft circumscribed circle diameter, therefore, positive six limits Shape cutter shaft material consumption is many, easily increases cost.Additionally, this utility model splined shaft cross section and same inscribed circle Regular hexagon cutter shaft, dodecagon cutter shaft compare, sectional area is big, and contact area is big, coordinates profit High by rate, intensity is high；Damage ratio for the spacer ring under strong load operation is also minimum；And flower Key axle and spacer ring, blades fit are difficult to slip teeth.Splined shaft compare other cutter shafts rotate angle will under, The i.e. spiral angle of blade is little, and cutter for paper grinder paper shredded paper when can be made not wrinkle, shredded paper Time machine do not rock (nodding), the circuit stability of machine operation, reliability is high, failure rate is low. Contrast prior art, in the case of required broken some paper, according to Force Calculation, required cutter Shaft section amasss as certain value, splined shaft circumscribed circle diameter < dodecagon cutter shaft circumscribed circle diameter < positive six Limit shape cutter shaft circumscribed circle diameter, therefore the splined shaft diameter of axle is little, and volume is little, and material saves, low cost；Broken In the case of paper machine limited space, a pair adjustable width of splined shaft spacing, can broken greater number of paper, Cost performance is high.Additionally, according to Calculating Torque during Rotary, splined shaft can coordinate the cutter of 2～10 blades to carry out Cutting paper, can arbitrarily coordinate the cutter of multi-blade, and standardization is high, i.e. produces assembly technology list One, simple to operate.In sum, do not allow with the contact point of blade and spacer ring is more when splined shaft rotates Easily slip teeth, not easy damaged spacer ring during loaded work piece, it is greater than positive six same circumference diameter lower section is long-pending Limit shape cutter shaft, say, that intensity is higher than the cutter shaft that similar sectional area is little；The shaft-driven blade of spline Spiral angle is little, and point of a knife arrangement effect angle is little.

Specifically, blade and spacer ring are arranged at interval on splined shaft is axial；This utility model should be two Pair of opposing, the shredded paper cut into is strip shredded paper, and blade and spacer ring interval setting can ensure bar Shape shredded paper width is consistent, and to ensure the follow-up cross-cut paper that cuts into, standardization level is high.

Specifically, each guide plate is equipped with some lobes, to ensure bar on the direction of cutting paper delivery Shape shredded paper, during guide plate guides, by the reflection of lobe, is discharged into required direction, ADF effect Good.

Specifically, this utility model also includes fixing axle, and knife rest has right angle portion, and each guide plate is equal It is installed in right angle portion, is positioned on each guide plate of right angle portion right angle and all has breach, fixing axle Be installed on institute jagged in.

Right angle portion is fixing with guide plate to be connected, and contact area is big, good fixing effect.It is positioned at right angle portion straight Guide plate at angle stress the most herein is concentrated relatively big, under Long-term Vibration, and material fatiguability, herein Gap can be prevented effectively from material failure.Meanwhile, fixing axle be installed on institute jagged in, fixing axle can Together it is fixed on shredder body with knife rest, can effectively fix this utility model.

Specifically, knife rest also includes profile of tooth bending plate, and the bending line of profile of tooth bending plate is parallel with splined shaft, Profile of tooth bending plate is located on one side, right angle portion of side, paper delivery direction；This utility model arranges profile of tooth bending Plate, can be effectively increased structural strength and the rigidity of knife rest.

A kind of high reliability paper shredding cutters of the present utility model provides the benefit that:

1. this utility model splined shaft cross section with the regular hexagon cutter shaft of inscribed circle, dodecagon Cutter shaft is compared, and sectional area is big, and contact area is big, coordinates utilization rate high, and intensity is high；For strong negative The damage ratio of the spacer ring under lotus work is also minimum；And splined shaft is difficult to sliding with spacer ring, blades fit Tooth；Splined shaft compare other cutter shafts rotate angle will under, i.e. the spiral angle of blade is little, permissible Making cutter for paper grinder paper shredded paper when not wrinkle, the when of shredded paper, machine does not rocks (nodding), The circuit stability of machine operation, reliability is high, failure rate is low；The splined shaft diameter of axle is little, and volume is little, material Material saves, low cost；In the case of shredder limited space, a pair adjustable width of splined shaft spacing, can Broken greater number of paper, cost performance is high；Splined shaft can arbitrarily coordinate the cutter of multi-blade, standardization Level is high, i.e. produces assembly technology single, simple to operate；With blade and spacer ring when splined shaft rotates The more slip teeth that is not easy of contact point, not easy damaged spacer ring during loaded work piece, cuts under same circumference diameter Area is greater than regular hexagon cutter shaft, say, that intensity is higher than the cutter shaft that similar sectional area is little；Flower Key shaft-driven blade spiral angle is little, and point of a knife arrangement effect angle is little；

2. blade and spacer ring are arranged at interval on splined shaft is axial；This utility model should be two a pair Being oppositely arranged, the shredded paper cut into is strip shredded paper, and blade and spacer ring interval setting can ensure that strip is broken Paper width is consistent, and to ensure the follow-up cross-cut paper that cuts into, standardization level is high；

The most each guide plate is equipped with some lobes, to ensure that strip is broken on the direction of cutting paper delivery Paper, during guide plate guides, by the reflection of lobe, is discharged into required direction, and ADF is effective；

4. right angle portion is fixing with guide plate is connected, and contact area is big, good fixing effect；It is positioned at right angle Portion's right angle guide plate stress the most herein is concentrated relatively big, under Long-term Vibration, and material fatiguability, this Place's gap can be prevented effectively from material failure；Meanwhile, fixing axle be installed on institute jagged in, fixing axle Can together be fixed on shredder body with knife rest, can effectively fix this utility model；

5, profile of tooth bending plate is set, structural strength and the rigidity of knife rest can be effectively increased.

Accompanying drawing explanation

With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is the schematic diagram of the paper shredding cutters with regular hexagon cutter shaft；

Fig. 2 is the schematic diagram of the paper shredding cutters with dodecagon cutter shaft；

Fig. 3 is the schematic three dimensional views of a kind of high reliability paper shredding cutters of the present utility model；

Fig. 4 is the front view of a kind of high reliability paper shredding cutters of the present utility model；

Fig. 5 is the top view of a kind of high reliability paper shredding cutters of the present utility model；

Fig. 6 is A-A sectional view in Fig. 4；

Fig. 7 is B-B sectional view in Fig. 4；

Fig. 8 is the partial enlarged drawing of C portion in Fig. 7.

Wherein: 1. knife rest, 11. right angle portions, 12. profile of tooth bending plates；2. splined shaft；3. guide plate, 31. lobes；4. spacer ring；5. blade；6. fix axle.

Detailed description of the invention

Presently in connection with accompanying drawing, this utility model is described in further detail.These accompanying drawings are showing of simplification Being intended to, basic structure of the present utility model is described the most in a schematic way, therefore it only shows and this utility model Relevant composition.

Being embodied as of of the present utility model a kind of high reliability paper shredding cutters as shown in Fig. 3-Fig. 8 Example, has knife rest 1 and splined shaft 2, and knife rest 1 is fixed with some guide plates 3, all guide plates 3 sheet-like array settings on knife rest 1 length direction, each guide plate 3 all has through hole, Mei Getong Kong Zhongjun is rotatably connected to spacer ring 4, and splined shaft 2 is equipped with in all spacer rings 4, splined shaft 2 Being arranged with some blades 5 on Zhou Xiang, every piece of blade 5 is all located between adjacent two pieces of guide plates 3.

Some blades 5 of the present embodiment are set on splined shaft 2, form rotary cutter, if it passes through Dry guide plate 3 is fixed on knife rest 1.Owing to splined shaft 2 matches with spacer ring 4, and spacer ring 4 turns It is dynamically connected in the through hole of guide plate, so rotary cutter is the most rotatable.Situation at same circumscribed circle Under, because regular hexagon cutter shaft cross section is less than dodecagon cutter shaft, so for ensureing the phase needed for broken paper Same sectional area, the circumscribed circle diameter of this regular hexagon cutter shaft more than dodecagon cutter shaft circumscribed circle diameter, Therefore, regular hexagon cutter shaft material consumption is many, easily increases cost.Additionally, the present embodiment splined shaft 2 cross section With compared with the regular hexagon cutter shaft of inscribed circle, dodecagon cutter shaft, sectional area is big, contact area Greatly, coordinating utilization rate high, intensity is high；Damage ratio for the spacer ring 4 under strong load operation is also Minimum；And splined shaft 2 coordinates with spacer ring 4, blade 5 and is difficult to slip teeth.Other are compared by splined shaft 2 Cutter shaft rotate angle will under, i.e. the spiral angle of blade 5 is little, and cutter for paper grinder can be made broken The when of paper, paper does not wrinkles, and the when of shredded paper, machine does not rocks (nodding), and the circuit of machine operation is steady Fixed, reliability is high, failure rate is low.Contrast prior art, in the situation of required broken some paper Under, according to Force Calculation, required cutter shaft sectional area is certain value, splined shaft 2 circumscribed circle diameter < positive 12 Limit shape cutter shaft circumscribed circle diameter < regular hexagon cutter shaft circumscribed circle diameter, therefore splined shaft 2 diameter of axle is little, Volume is little, and material saves, low cost；In the case of shredder limited space, between a pair splined shaft 2 Away from adjustable width, can broken greater number of paper, cost performance is high.Additionally, according to Calculating Torque during Rotary, spline Axle 2 can coordinate the cutter of 2～10 blades to carry out cutting paper, can arbitrarily coordinate the cutter of multi-blade, Standardization is high, i.e. produces assembly technology single, simple to operate.In sum, splined shaft 2 revolves With the more slip teeth that is not easy of contact point of blade 5 and spacer ring 4 when turning, during loaded work piece not easy damaged every Circle 4, amasss at same circumference diameter lower section and is greater than regular hexagon cutter shaft, say, that intensity wants height In the cutter shaft that similar sectional area is little；Blade 5 spiral angle that splined shaft 2 drives is little, point of a knife arrangement effect Really angle is little.

Specifically, blade 5 and spacer ring 4 are arranged at interval on splined shaft 2 is axial；The present embodiment should be Two pair of opposing, the shredded paper cut into is strip shredded paper, and blade 5 and spacer ring 4 interval are arranged Can ensure that strip shredded paper width is consistent, to ensure the follow-up cross-cut paper that cuts into, standardization level is high.

Specifically, each guide plate 3 is equipped with some lobes 31 on the direction of cutting paper delivery, with Ensure that strip shredded paper, during guide plate 3 guides, by the reflection of lobe 31, is discharged into demanding party of institute To, ADF is effective.

Specifically, the present embodiment also includes fixing axle 6, and knife rest 1 has right angle portion 11, each guiding Plate 3 is mounted in right angle portion 11, is positioned on each guide plate 3 of right angle portion 11 right angle and all opens Jagged, fixing axle 6 be installed on institute jagged in.

Right angle portion 11 is fixing with guide plate 3 to be connected, and contact area is big, good fixing effect.It is positioned at straight Guide plate 3 stress the most herein of corner 11 right angle is concentrated relatively big, under Long-term Vibration, and material Fatiguability, gap can be prevented effectively from material failure herein.Meanwhile, fixing axle 6 is installed on all lacking In Kou, fixing axle 6 together can be fixed on shredder body with knife rest 1, can effectively fix this enforcement Example.

Specifically, knife rest 1 also includes profile of tooth bending plate 12, the bending line of profile of tooth bending plate 12 and flower Key axle 2 is parallel, and profile of tooth bending plate 12 is located in the right angle portion 11 of side, paper delivery direction；This enforcement Example arranges profile of tooth bending plate 12, can be effectively increased structural strength and the rigidity of knife rest 1.

Should be appreciated that specific embodiment described above is only used for explaining this utility model, and need not In limiting this utility model.The obvious change extended out by spirit of the present utility model or change Move among still in protection domain of the present utility model.

Claims (5)

1. a high reliability paper shredding cutters, it is characterised in that: there is knife rest (1) and splined shaft (2), Being fixed with some guide plates (3) on described knife rest (1), all guide plates (3) are in knife rest (1) On length direction, sheet-like array is arranged, and each guide plate (3) all has through hole, in each through hole all Being rotatably connected to spacer ring (4), described splined shaft (2) is equipped with in all spacer rings (4), Being arranged with some blades (5) on described splined shaft (2) is axial, every piece of blade (5) is all located at phase Between adjacent two pieces of guide plates (3).

A kind of high reliability paper shredding cutters the most according to claim 1, it is characterised in that: institute State blade (5) and spacer ring (4) and be spaced setting on splined shaft (2) is axial.

A kind of high reliability paper shredding cutters the most according to claim 1, it is characterised in that: every Individual guide plate (3) is equipped with some lobes (31) on the direction of cutting paper delivery.

A kind of high reliability paper shredding cutters the most according to claim 1, it is characterised in that: also Including fixing axle (6), described knife rest (1) has right angle portion (11), each guide plate (3) It is mounted in right angle portion (11), is positioned at each guide plate (3) of right angle portion (11) right angle On all have breach, described fixing axle (6) be installed on institute jagged in.

A kind of high reliability paper shredding cutters the most according to claim 4, it is characterised in that: institute State knife rest (1) and also include profile of tooth bending plate (12), the bending line of described profile of tooth bending plate (12) Parallel with splined shaft (2), described profile of tooth bending plate (12) is provided close to the straight of cutter paper delivery direction On corner (11) one side.