CN201559216U

CN201559216U - Rotary cutting knife roll

Info

Publication number: CN201559216U
Application number: CN200920181651XU
Authority: CN
Inventors: 郭尚接; 陈阳升; 余富才
Original assignee: SANMING PNV MACHINERY CO Ltd
Current assignee: SANMING PNV MACHINERY CO Ltd
Priority date: 2009-12-10
Filing date: 2009-12-10
Publication date: 2010-08-25
Anticipated expiration: 2019-12-10

Abstract

The utility model discloses a rotary cutting knife roll, which comprises a knife shaft and a knife roll assembled on the surface of the knife shaft, the roll surface of the knife roller comprises a non-functional zone of different materials and a functional zone directly used for bearing the roll cutting pressure, a plurality of knife blade modules are provided on the functional zone, knife blades convexly extend on the surfaces of each knife blade module. The knife blade modules are in split joint along the circumference surface of the knife shaft according to the prescribed blade curve traces on the functional zone. The utility model divides the roll surface of the knife roll into the non-functional zone and the functional zone, only the knife blade module of the functional zone is manufactured by expensive import materials, and the non-functional zone is manufactured by general materials, so that large quantities of expensive import materials can be saved, the cost is economized, the machining working processes such as the forging and the heat processing of the single knife blade module are simple, so that the manufacturing cost can be greatly saved, and the die cutting efficiency is high.

Description

A kind of rotary-cut rotor

Technical field

The utility model relates to the rotating die cutting mechanical field, relates in particular to a kind of rotary-cut rotor.

Background technology

At present, the rotating die cutting The Application of Technology more and more widely, application industry relates in the industries such as nonwoven, leather and fur products, electronic products, plastic products, medical dressing, packing, printing, paper for daily use, tinsel, film.Along with the development of industry-by-industry, more and more faster to the rate request of cross cutting, and require control to the cross cutting cost, also increasing to the dimensional requirement of die cutting product simultaneously, the longest product size is above 2 meters.So, require rotor to possess following performance:

1) higher speed, cross cutting speed is greater than 300 m/mins;

2) bigger diameter, the roll body diameter is greater than 700mm;

3) higher wearability, the service life of single regrinding is greater than more than 1000 myriametres, and homemade steel can't meet the demands, must adopt mould steel, powder steel or the carbide alloy manufacturing of Imported High-performance, and common mould steel maximum gauge can only be less than 300mm on the international market at present, when diameter was above greater than 300mm, whole rotor can't be made of mould steel, powder steel or the carbide alloy of import;

4) higher cost performance is when improving cross cutting efficient and reduce the cross cutting cost significantly.

See also Fig. 1; it is existing a kind of rotary-cut rotor; comprise cutter shaft 30, be coated on the rotor 40 that matches with described cutter shaft 30 on the cutter shaft 30 and be fixed on described cutter shaft 30 both sides and with described rotor 40 integrated rotor protection rings 50; described rotor 40 is coated on the two ends on cutter shaft 30 surfaces fully; the roll surface of described rotor 40 has blade curve 41, and rotor 40 cuts article with cutter shaft 30 rotation and by the track of this blade curve 41.

Yet, the rotor 40 of this rotary-cut rotor is whole to be coated on the surface of cutter shaft 30, rotor 40 is whole consistent because of the warp architecture of adaptive blade curve 41 at the axial width of circumferential surface, steel consumption is big, and this is quite expensive to the cost that needs import mould steel, powder steel or carbide alloy to make the rotary-cut rotor; And the axial width broad of rotor 40, rotor 40 and cutter shaft 30 whole integrated diameters are bigger, forge, processing technology such as heat treatment is also complicated, the manufacturing cost height, and owing to there is not large diameter powder high alloy pole to forge material, can not satisfy needed red hardness of high speed cross cutting and abrasion resistance, rotor die cutting product efficient is low, can not satisfy industry-by-industry day by day to the requirement of cross cutting speed.

The utility model content

The technical problem that the utility model mainly solves provides a kind of rotary-cut rotor, can reduce manufacturing cost and can improve cross cutting efficient.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of rotary-cut rotor is provided, comprise cutter shaft and the rotor that is assemblied in described cutter shaft surface, the roll surface of described rotor comprises the non-functional area that material is different and directly bears the functional area of rolling cut pressure, described functional area is provided with a plurality of blade modules, all protruded out blade on the surface of each blade module, described blade has cutting edge, and described blade module is spliced by predetermined blade curve track at the circumferential surface of functional area upper edge cutter shaft.

Wherein, described functional area is provided with a plurality of grooves, and described blade module is arranged in grooved.

Wherein, the surface that described blade module has the bottom surface suitable with the bottom land of described grooved, the two sides that are connected with the bottom surface and connects a circular arc of two sides, described two sides are the inclined-plane, form the obtuse angle between two sides and the bottom surface.

Wherein, to be a plurality of blade modules be spliced to form by predetermined blade curve track along the circumferential surface of cutter shaft the functional area of described rotor.

Wherein, be distributed with one or more groups described blade curve on the circumferential surface of described cutter shaft, the described blade curve five equilibrium or the circumferential surface that is distributed in cutter shaft of five equilibrium not, described each group blade curve are distributed in respectively along on the blade module of the circumferencial direction of cutter shaft.

Wherein, described blade curve is row graph, disjoint figure, local figure or linear, and described blade module is mould steel, powder metallurgy steel or carbide alloy manufacturing.

Wherein, the both ends of the surface of described cutter shaft are fixed with a protection ring respectively, and the external diameter of described protection ring is less than the external diameter of described cutting edge, and both differ 0.002mm～0.05mm by external diameter.

Wherein, comprise fixture, described fixture is a screw, offer screw hole and screwed hole on each blade module surface, offer the screwed hole that matches with the lip-deep screw hole of blade module on the described cutter shaft surface, described screw passes described screw hole and screwed hole is fixed on the blade module on the cutter shaft; Offer 2～6 screw holes and 2 screwed holes on the described blade module; Described cutter shaft both sides have screwed hole, and screw passes screwed hole described protection ring is fixed on the both ends of the surface of cutter shaft.

Wherein, described cutting edge is wire, and the cross section of described cutting edge is triangular in shape, and the depth of section of cutting edge is 1mm～20mm, and the drift angle of described cutting edge is 30 degree～60 degree or 60 degree～100 degree.

The beneficial effects of the utility model are: the rotor and the rotor protection ring that are different from prior art rotary-cut rotor adopt monolithic construction and rotor to be coated on fully on the surface of cutter shaft, steel consumption is big, the Technology for Heating Processing complexity, cross cutting efficient is low, the situation that production cost is high, the roll surface of the utility model rotary-cut rotor comprises non-functional area and directly is used for bearing the functional area of rolling cut pressure, functional area is provided with a plurality of blade modules, the blade module is by the circumferencial direction splicing of the blade curve track of setting along cutter shaft, the axial width of blade module can be decided as required, do not need to be coated on fully the surface of cutter shaft, thereby only need the blade module of functional area is adopted expensive imported material manufacturing, non-functional area then adopts general common material manufacturing, so can save the use of expensive imported material in a large number, save cost; And forging with process such as heat treatments of single blade module is all simpler, saves manufacturing cost greatly, and cross cutting efficient height.

The blade module of the utility model rotary-cut rotor adopts mould steel, powder metallurgy steel or carbide alloy manufacturing, greatly improves the red hardness and the abrasion resistance of cutting die, improves cross cutting efficient.

The utility model rotary-cut rotor by a plurality of blade modules by predetermined blade curve track in the surface splicing of described cutter shaft, effectively solve the situation that mould steel, powder steel or carbide alloy that major diameter (diameter is greater than more than the 300mm) rotor can't adopt import are made.

Description of drawings

Fig. 1 is the structural representation of existing rotary-cut rotor;

Fig. 2 is the structural representation of the utility model rotary-cut rotor;

Fig. 3 be among Fig. 2 the rotary-cut rotor along the cutaway view of A--A line;

Fig. 4 is the sectional view of the blade of a kind of shape of rotor among Fig. 2;

Fig. 5 is the sectional view of the blade of the another kind of shape of rotor among Fig. 2;

Fig. 6 is the expanded view of the utility model rotary-cut rotor.

The specific embodiment

By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.

See also Fig. 2 and Fig. 3, the protection ring 30 that the utility model rotary-cut rotor comprises cutter shaft 20, is fixed on the rotor on cutter shaft 20 surfaces and is fixed on the rotor two ends.The roll surface of described rotor comprises non-functional area and directly is used for bearing the functional area of rolling cut pressure.Described functional area is provided with blade module 21.Described blade module 21 is spliced by predetermined blade curve track at the circumferential surface of functional area upper edge cutter shaft 20.Milled out groove on the functional area of described rotor roll surface, described blade module 21 is fixed in the grooved.Described blade module 21 is rotated with cutter shaft 20 along the center line of cutter shaft 20.

Protruded out blade 22 on the surface of described blade module 21, the surface distributed of described blade 22 has cutting edge 23, and described a plurality of blade modules 21 are embedded in described a plurality of grooved by predetermined blade curve track.Offer 2～6 screw holes 102 and 2 screwed holes 103 on the described blade module 21, be processed with the screwed hole 101 that matches with screw hole 102 on the blade module 21 on the described cutter shaft 20, pass the screw hole 102 of blade module 21 and the screwed hole 101 on the cutter shaft 20 with screw, and pass on screwed hole 103 is fastened on blade module 21 in the grooved with screw.Described cutter shaft 20 both sides have screwed hole 13, one screws and pass screwed hole 13 and be fixed on the both ends of the surface of cutter shaft 20 through the protection ring 30 of vacuum heat after good described.The external diameter of described protection ring 30 is less than the external diameter of described cutting edge 23, and both external diameters generally differ 0.002mm～0.05mm, and cutting edge 23 so is convenient to cut article than protection ring 30 height, helps protecting cutting edge 23.The height of described cutting edge 23 cross sections can according to the thickness of different die cutting product material therefors and require designed, generally in 1mm～20mm scope.

The cross section of described blade module 21 roughly is the trapezoidal bulk of carving, and comprises an end face 213 that is the suitable bottom surface 211 of planar shaped and bottom land described grooved, the two sides 212 that are connected with bottom surface 211 and connects the first-class diameter circle arc of two sides 212.The described two sides that are connected with bottom surface 211 212 are the inclined-plane, form the obtuse angle respectively between described two sides 212 that are connected with bottom surface 211 and the bottom surface 211.Described blade 22 is distributed on the end face 213 of described circular arc, and the shape of the joint portion of the bottom surface of described blade 22 and blade module 21 and the end face of circular arc 213 is suitable, and described cutter shaft 20 is bottom surface 211 designs suitable plane or the grooved of the groove bottom of grooved according to described blade module 21 with the faying face of blade module 21.Described grooved can also be set directly on the circumferential surface of described cutter shaft 20.

In the present embodiment, to be a plurality of blade modules 21 be spliced by predetermined blade curve track along the circumferential surface of cutter shaft 20 described rotor, and blade module 21 directly is distributed on the circumferential surface of cutter shaft 20.

Described blade module 21 adopts high performance mould steel, powder metallurgy steel or hard alloy steel to grind according to the dimensional requirement precision and forms, can greatly improve the red hardness and the wearability of cutting edge, improves cross cutting efficient.All sizes of described rotary-cut rotor all are that strict as requested precision grinds.

The utility model rotary-cut rotor processing technology comprises step:

2～6 screw holes and 2 screwed holes are bored in surface in each blade module 21 of thick moulding;

Cooperate the screw hole on blade module 21 surfaces to go out the respective threads hole in cutter shaft 20 Surface Machining;

The circumference number of divisions and axial distribution position on cutter shaft 20 surfaces according to blade module 21 process corresponding plane that cooperates with blade module 21 bottom surfaces or grooved;

The blade module 21 of thick moulding is fixed on the cutter shaft 20 by screw;

With high-speed numeric control lathe (CNC) thick moulding blade module 21 is processed blade 22 and cutting edge 23 thereof by preset shape.

Extract screw, take off blade module 21, blade 22 and cutting edge 23 thereof and protection ring 30 are carried out vacuum heat separately from cutter shaft 20;

With the 23 usefulness high-speed numeric control lathes (CNC) of the cutting edge after the vacuum heat automatically fine ginding and the blade 22 and the protection ring 30 of blade module finish grinded respectively to 0.05mm;

To behind blade module 21 match grindings after the Overheating Treatment, be fastened on cutter shaft 20 surfaces, protection ring 30 will be fastened on the both ends of the surface of cutter shaft 20 by screw.Under special circumstances, described protection ring 30 can not be installed at the two ends of described cutter shaft 20.

With the roll body that is assembled into one behind accurate peripheral milling, with high-speed numeric control lathe (CNC) by the automatic fine ginding edge width of blade shape requirement to 0.05mm～0.15mm.

See also Fig. 4 and Fig. 5, it is two kinds of difform blades 22,22 ' sectional view, and described blade 22,22 ' has a cutting edge 23,23 ', and described cutting edge 23,23 ' drift angle are 30 degree～60 degree, 60 degree～100 degree, so that the cutting article.

Describedly be arranged in the grooved or directly be distributed in the axial width of a plurality of blade modules 21 on cutter shaft 20 surfaces and the shape of the blade curve that sets can design according to the shape and the requirement of different die cutting products, the described piece quantity that is distributed in the blade module 21 on cutter shaft 20 surfaces is not limit, and can decide according to the circumferential length of cutter shaft 20, the external diameter of blade module 21 and the complexity of blade 22.Described blade curve can be shapes such as row graph, disjoint figure, local figure or linear.

See also Fig. 6, it is the expanded view of the utility model rotary-cut rotor, can be according to one or more groups blade curve of large and small distribution of the circumferential surface of described cutter shaft 20, and described blade curve can five equilibrium or the circumferential surface of five equilibrium cutter shaft 20 not.Only in embodiment of the utility model, consider that from integrated cost blade curve is no more than 20 groups.Described each group blade curve is that the cutting edge 23 by one or more blade module 21 splices or is cross-linked on the length direction vertical with the axial direction of cutter shaft 20 and forms, in the present embodiment, two blade curves of each group blade curve be distributed in respectively along the circumferential direction about on each 6 blade module 21.Again only in another embodiment of the present utility model, the described polylith blade module 21 that is distributed in cutter shaft 20 surfaces satisfies the blade curve expanded view on the roll body surface of rotary-cut rotor at the axial width of cutter shaft 20 lip-deep distributing positions and every blade module 21, and is length and the axial width that principle designs blade module 21 to save material to greatest extent.

The rotor and the rotor protection ring that are different from prior art rotary-cut rotor adopt monolithic construction and rotor to be coated on fully on the surface of cutter shaft, steel consumption is big, cross cutting efficient is low, the situation that production cost is high, the improvements of the utility model rotary-cut rotor are, the roll surface of the utility model rotary-cut rotor comprises non-functional area and directly is used for bearing the functional area of rolling cut pressure, described functional area is provided with a plurality of blade modules 21, blade module 21 is by the circumferencial direction splicing of the blade curve track of setting along cutter shaft 20, the axial width of blade module 21 can be decided as required, do not need to be coated on fully the surface of cutter shaft 20, thereby only need the blade module to adopt expensive imported material manufacturing, non-functional area then adopts general common material manufacturing, so can save the use of expensive imported material in a large number, save cost; And forging with process such as heat treatments of single blade module is all simpler, saves manufacturing cost greatly, and cross cutting efficient height.

The utility model rotary-cut rotor is spliced on the functional area of described rotor roll surface by predetermined blade curve track by a plurality of blade modules 21, has effectively solved the situation that major diameter (diameter is greater than more than the 300mm) rotor can't adopt mould steel, powder steel or the carbide alloy of import to make.

In sum, on the surface that is fixed on cutter shaft 20 of the utility model rotary-cut rotor by one or more blade module 21 splicings, all protruded out blade 22 on the surface of described each blade module 21, blade 22 has cutting edge 23, described a plurality of blade module 21 is spliced on described cutter shaft 20 surfaces by predetermined blade curve track, the axial width of blade module 21 can be set as required, do not need to be coated on fully the surface of cutter shaft 20, thereby only the blade module 21 with functional area adopts expensive imported material manufacturing, non-functional area then adopts general common material manufacturing, so can save the use of expensive imported material in a large number, save cost; And forging with process such as heat treatments of single blade module 21 is all simpler, saves manufacturing cost greatly, and cross cutting efficient height.

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. rotary-cut rotor, it is characterized in that, comprise cutter shaft and the rotor that is assemblied in described cutter shaft surface, the roll surface of described rotor comprises the non-functional area that material is different and directly bears the functional area of rolling cut pressure, described functional area is provided with a plurality of blade modules, all protruded out blade on the surface of each blade module, described blade has cutting edge, and described blade module is spliced by predetermined blade curve track at the circumferential surface of functional area upper edge cutter shaft.

2. rotary-cut rotor according to claim 1 is characterized in that described functional area is provided with a plurality of grooves, and described blade module is arranged in grooved.

3. rotary-cut rotor according to claim 2, it is characterized in that, the surface that described blade module has the bottom surface suitable with the bottom land of described grooved, the two sides that are connected with the bottom surface and connects a circular arc of two sides, described two sides are the inclined-plane, form the obtuse angle between two sides and the bottom surface.

4. rotary-cut rotor according to claim 1 is characterized in that, to be a plurality of blade modules be spliced to form by predetermined blade curve track along the circumferential surface of cutter shaft the functional area of described rotor.

5. according to each described rotary-cut rotor of claim 1 to 4, it is characterized in that, be distributed with one or more groups described blade curve on the circumferential surface of described rotor, the described blade curve five equilibrium or the circumferential surface that is distributed in cutter shaft of five equilibrium not, described each group blade curve are distributed in respectively along on the blade module of the circumferencial direction of cutter shaft.

6. rotary-cut rotor according to claim 5 is characterized in that, described blade curve is row graph, disjoint figure, local figure or linear, and described blade module is mould steel, powder metallurgy steel or carbide alloy manufacturing.

7. rotary-cut rotor according to claim 1 is characterized in that the both ends of the surface of described cutter shaft are fixed with a protection ring respectively, and the external diameter of described protection ring is less than the external diameter of described cutting edge, and both differ 0.002mm～0.05mm by external diameter.

8. rotary-cut rotor according to claim 1, it is characterized in that, comprise fixture, described fixture is a screw, offer screw hole and screwed hole on each blade module surface, offer the screwed hole that matches with the lip-deep screw hole of blade module on the described cutter shaft surface, described screw passes described screw hole and screwed hole is fixed on the blade module on the cutter shaft, offers 2～6 screw holes and 2 screwed holes on the described blade module; Described cutter shaft both sides have screwed hole, and screw passes screwed hole described protection ring is fixed on the both ends of the surface of cutter shaft.

9. rotary-cut rotor according to claim 1 is characterized in that described cutting edge is wire, and the cross section of described cutting edge is triangular in shape, and the depth of section of cutting edge is 1mm～20mm, and the drift angle of described cutting edge is 30 degree～60 degree or 60 degree～100 degree.