A kind of slitting processing technology of soft state flat cold-rolled sheet
Technical field
The invention belongs to flat cold-rolled sheet processing technique field, the slitting of specifically a kind of soft state flat cold-rolled sheet processes work
Skill.
Background technique
The characteristics of flat cold-rolled sheet is that dimension precision requirement is high, board surface quality requirement is high, and width accuracy is the master of dimensional accuracy
Key control point is wanted, within flat cold-rolled sheet precision slitting line width accuracy requirement ± 0.005mm.Later flat cold-rolled sheet of annealing is commonly called as
Soft state flat cold-rolled sheet, in actual production, since the material hardness of hot rolling plate is uneven, the plate form control during cold rolling
Deviation, soft state cut the factors such as precision of equipment installation deviation, strip sideslip frequent occurrence before entering soft state slitting cutter shaft, and then lead
The defects of causing warpage, size inaccurate, so that it cannot be guaranteed that the high performance requirements of soft state flat cold-rolled sheet, cause very big lumber recovery damage
It loses.However due to soft state cold-strip steel thinner thickness, the guide and guards positioning accuracy generally used at present is poor, and structure bulky,
It unilateral cannot adjust, it is therefore desirable to develop one kind and be able to solve and occur in the soft state slitting production process of ultrathin cold-rolled Strip
Sideslip, inaccurate and other issues the device of warpage, size.
Summary of the invention
In order to make up for the deficiencies of the prior art, the slitting processing technology of a kind of soft state flat cold-rolled sheet proposed by the present invention, should
Guide and guards in technique above edger roll by being arranged scissors mechanism, while sliding seat drives scissors mechanism by bracket upright post
It shrinks, and then the pressing roller of scissors mechanism lower end is driven to compress thin plate, the spring of scissors mechanism upper end mentions for pressing roller
Precompression is supplied, in conjunction with the base modules of thin plate lower end, final realize flattens thin plate;Pressing roller holder upper end, which is hinged on, cuts
It on the hinge joint for pitching mechanism, ensure that pressing roller can be bonded with thin sheet surface, and then ensure that the precision after thin plate is leveled.
The technical solution adopted by the present invention to solve the technical problems is:A kind of soft state flat cold-rolled sheet of the present invention
Slitting processing technology, the technique include the following steps:
Step 1:A roll of soft state flat cold-rolled sheet is mounted in the spool shaft of uncoiler using feeding cart;
Step 2:The soft state flat cold-rolled sheet being mounted on reel of uncoiler axis in step 1 introducing is slightly cut into equipment, is carried out
Thick school, cutting head;
Step 3:The soft state flat cold-rolled sheet for passing through thick school, cutting head in step 2 is introduced into guide and guards and carries out centering correction;
Step 4:Soft state flat cold-rolled sheet in step 3 after guide and guards centering correction is introduced slitting cutter shaft to carry out
Shearing;
Wherein, the guide and guards includes bottom plate, sliding seat, edger roll support, edger roll, bracket upright post, compression module, base
Quasi-mode block, the bottom plate upper end are symmetrical arranged two sliding seats;The sliding seat is slidably mounted in the sliding slot of bottom plate upper surface,
Sliding seat upper end is fixedly connected with the lower end of edger roll support;Edger roll, the upper end of edger roll support are rotatablely installed in the edger roll support
It is fixedly connected with the lower end of bracket upright post, is equipped with compression module between two bracket upright posts;Benchmark is equipped with below the compression module
Module, compression module guarantee the flatness of thin plate for cooperating base modules to smooth thin plate;The base modules are used for
The benchmark after compressing is provided for compression module;Wherein, the compression module includes scissors mechanism, pressing roller, pressing roller holder, bullet
Spring, sliding block, the scissors mechanism both ends are mounted in two bracket upright posts by sliding block, and the sliding block of scissors mechanism upper end slides peace
In the sliding slot of bracket upright post, upper end of slide block is equipped with spring, and the sliding block of scissors mechanism lower end is slidably mounted on bracket upright post
In sliding slot, two hinge joints in the middle part of scissors mechanism lower end are equipped with pressing roller holder;The pressing roller holder upper center is hinged on
On the hinge joint of scissors mechanism lower end, pressing roller holder lower end is equipped with pressing roller, and pressing roller holder both ends pass through spring and scissors mechanism
Connection;In use, thin plate enters between base modules and compression module, two sliding seats of motor driven are close, and sliding seat drives
The pressing roller of upper end positions the transverse direction of thin plate, while sliding seat drives scissors mechanism to shrink by bracket upright post, in turn
The pressing roller of scissors mechanism lower end is driven to compress thin plate, the spring of scissors mechanism upper end provides precompressed for pressing roller
Power, in conjunction with the base modules of thin plate lower end, final realize flattens thin plate;Pressing roller holder upper end is hinged on scissors mechanism
It on hinge joint, ensure that pressing roller can be bonded with thin sheet surface, and then ensure that the precision after thin plate is leveled.
Preferably, the base modules include grafting axis, benchmark idler wheel, midfoot support post, one end end of the grafting axis
Face center is arranged cylindrical hole, and one end end face of grafting axis is radially even to separate several sectors, on one end end face of grafting axis
Several sector interval removals, one end of two grafting axis are plugged in together, and the other end of grafting axis is rotatablely installed by mounting base
In the upper end of sliding seat, midfoot support post is equipped with below the inserted terminal of grafting axis, the middle part of grafting axis is equipped with benchmark idler wheel;It is described
Midfoot support upper surface is arranged to semicircle cambered surface, and semicircle cambered surface is bonded with the cylindrical surface of grafting axis, and midfoot support lower end is fixed to be connected
It connects in the upper end of bottom plate;In use, sliding seat drives the inserted terminal of two grafting axis that opposite sliding, the inserted terminal of grafting axis occurs
The sector structure of even partition both realized grafting axis can opposite sliding, the grafting axis after guaranteed two grafting can hold
By certain moment of flexure, and then it ensure that the precision of the benchmark idler wheel on grafting axis;Midfoot support upper surface is arranged to semicircle cambered surface,
Both the supporting role of the inserted terminal to grafting axis had been realized, while having facilitated the installation and maintenance of grafting axis.
Preferably, semi-circular recesses are set on the binding face of the inserted terminal of the grafting axis;In use, two grafting axis are inserted
After being connected together, the semi-circular recesses being arranged on the binding face of inserted terminal have been spliced into cylindrical hole, are passed through in cylindrical hole
Lubricating oil, when sliding seat drives two grafting axis are opposite to slide, the lubricating oil in cylindrical hole is to the binding face on grafting axis
It is lubricated, causes the concentricity of two grafting axis grafting axis to have deviation, Jin Erying after preventing the fitting surface wear because of grafting axis
Ring the precision of benchmark idler wheel, the final machining accuracy for influencing thin plate.
Preferably, No.1 annular groove is arranged in the semicircle cambered surface bottom of the midfoot support post;In use, in midfoot support
Be passed through lubricating oil in the No.1 annular groove of column, lubricating oil can either the inserted terminal to grafting axis adequately lubricated, simultaneously
The heat that can be generated again to the semicircle cambered surface friction of grafting axis and midfoot support post absorbs, and then plays cooling effect,
And then grafting axis is eliminated because deforming caused by fever, and then ensure that the precision of benchmark idler wheel on grafting axis.
Preferably, No.1 annular groove bottom on the grafting axis is arranged No. two annular grooves, in No. two annular grooves
Equipped with arc panel;Described arc panel one end is hinged on one end of No. two annular grooves, and the hinged place of arc panel is equipped with torsional spring, arc
The plate other end is equipped with No.1 idler wheel, and vertical plate, arc panel upper surface and grafting is arranged close to the side of No.1 idler wheel in arc panel upper end
Roller is equipped between axis;One group of spring is equipped between the roller and the vertical plate of arc panel upper end;The cylinder of the No.1 idler wheel
One circular arc protrusion is set on face;In use, benchmark idler wheel drives the rotation of grafting axis, grafting axis drives roller edge by frictional force
The upper surface of arc panel rolls, and realizes that the lubricating oil between roller and vertical plate is extruded between the binding face of grafting axis, realizes
It is adequately lubricated between binding face;The No.1 idler wheel rotation that arc panel end is driven while grafting axis rotates, works as No.1
When circular arc projection contacts grafting axis on idler wheel, arc panel is swung, and then arc panel is detached from the contact with roller, and roller is arcuately
Plate surface reverse slide, when No.1 idler wheel is detached from grafting axis relative rolling, arc panel re-starts contact roller.
Preferably, one layer of wear-resisting antiskid coating is arranged in the No.1 roller surface;In use, the setting of No.1 roller surface is resistance to
Mill nonskid coating ensure that and is effectively rolled between No.1 idler wheel and grafting axis, and then guarantee arc panel reliably and roller
Between be detached from, finally ensure that lubricating oil is extruded between the binding face of grafting axis, obtain the inserted terminal of grafting axis
Adequately lubrication.
Preferably, the sliding block lower end of the scissors mechanism upper end is equipped with crushing block;The crushing block is slidably mounted on sliding slot
It is interior, one end of the hinged No.1 connecting rod in crushing block lower end;The other end of the No.1 connecting rod is hinged on nut upper end;Under the nut
Hinged No. two small ends are held, are equipped with screw rod in the threaded hole of nut;No. two connecting rod lower ends are hinged in bracket upright post
Rectangle trench bottom;The screw rod is rotatably installed in the mounting hole in bracket upright post;In use, rotation screw rod, screw rod push spiral shell
Mother is mobile, and then pushes crushing block sliding by No.1 connecting rod and No. two connecting rods, pushes on scissors mechanism eventually by crushing block
The sliding block at end is mobile, and the elemental height of the pressing roller of scissors mechanism lower end is adjusted in realization, and the suitable of guide and guards has been turned up
Use range.
Beneficial effects of the present invention are as follows:
1. a kind of slitting processing technology of soft state flat cold-rolled sheet of the present invention, guide and guards in the technique by
Scissors mechanism is set, while sliding seat drives scissors mechanism to shrink by bracket upright post above edger roll, and then drives scissors mechanism
The pressing roller of lower end compresses thin plate, and the spring of scissors mechanism upper end provides precompression for pressing roller, in conjunction under thin plate
The base modules at end, final realize flatten thin plate;Pressing roller holder upper end is hinged on the hinge joint of scissors mechanism, is guaranteed
Pressing roller can be bonded with thin sheet surface, and then ensure that the precision after thin plate is leveled.
2. a kind of slitting processing technology of soft state flat cold-rolled sheet of the present invention, the guide and guards in the technique pass through by
The inserted terminal of grafting axis is evenly divided into sector structure, and both having realized grafting axis opposite can slide, and in turn ensures two grafting
Grafting axis afterwards is able to bear certain moment of flexure, and then ensure that the precision of the benchmark idler wheel on grafting axis;Midfoot support upper end
Face is arranged to semicircle cambered surface, has both realized the supporting role of the inserted terminal to grafting axis, at the same facilitate grafting axis installation and
Maintenance.
3. a kind of slitting processing technology of soft state flat cold-rolled sheet of the present invention, guide and guards in the technique by
Semi-circular recesses are set on the binding face of the inserted terminal of grafting axis, and the semi-circular recesses of two grafting axis have been spliced into cylinder
Hole, the lubricating oil in cylindrical hole are lubricated the binding face on grafting axis, lead after preventing the fitting surface wear because of grafting axis
It causes the concentricity of two grafting axis grafting axis to have deviation, and then influences the precision of benchmark idler wheel, the final processing essence for influencing thin plate
Degree.
4. a kind of slitting processing technology of soft state flat cold-rolled sheet of the present invention, the guide and guards in the technique passes through arc
Roller is set between shape plate upper surface and grafting axis, grafting axis drives the upper surface of roller arcuately plate to roll by frictional force,
It realizes that the lubricating oil between roller and vertical plate is extruded between the binding face of grafting axis, realizes and obtained between binding face adequately
Lubrication;By the way that a circular arc protrusion is arranged on the cylindrical surface of No.1 idler wheel, realize that grafting axis reciprocally drives roller arcuately
The upper surface of plate rolls, and then realizes being lubricated to the binding face of grafting axis for discontinuity, reduces between grafting axis binding face
Friction.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is process flow chart of the invention;
Fig. 2 is the main view of guide and guards in the present invention;
Fig. 3 is the enlarged drawing at the A of Fig. 2;
Fig. 4 is the cross-sectional view at the B-B of Fig. 2;
In figure:Bottom plate 1, sliding seat 2, mounting base 21, edger roll support 3, edger roll 4, bracket upright post 5, crushing block 51, No.1 connect
Bar 52, nut 53, No. two connecting rods 54, screw rod 55, compression module 6, scissors mechanism 61, pressing roller 62, pressing roller holder 63, benchmark moulds
731, No. two block 7, grafting axis 71, semi-circular recesses 711, benchmark idler wheel 72, midfoot support post 73, No.1 annular groove annulars are recessed
Slot 732, arc panel 74, vertical plate 741, No.1 idler wheel 75, roller 76.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
As shown in Figures 1 to 4, a kind of slitting processing technology of soft state flat cold-rolled sheet of the present invention, the technique include
Following steps:
Step 1:A roll of soft state flat cold-rolled sheet is mounted in the spool shaft of uncoiler using feeding cart;
Step 2:The soft state flat cold-rolled sheet being mounted on reel of uncoiler axis in step 1 introducing is slightly cut into equipment, is carried out
Thick school, cutting head;
Step 3:The soft state flat cold-rolled sheet for passing through thick school, cutting head in step 2 is introduced into guide and guards and carries out centering correction;
Step 4:Soft state flat cold-rolled sheet in step 3 after guide and guards centering correction is introduced slitting cutter shaft to carry out
Shearing;
Wherein, the guide and guards includes bottom plate 1, sliding seat 2, edger roll support 3, edger roll 4, bracket upright post 5, pressure die
Block 6, base modules 7,1 upper end of bottom plate are symmetrical arranged two sliding seats 2;The sliding seat 2 is slidably mounted on 1 upper end of bottom plate
In the sliding slot in face, 2 upper end of sliding seat is fixedly connected with the lower end of edger roll support 3;It is rotatablely installed edger roll 4 in the edger roll support 3,
The upper end of edger roll support 3 is fixedly connected with the lower end of bracket upright post 5, is equipped with compression module 6 between two bracket upright posts 5;The pressure
Base modules 7 are equipped with below tight module 6, compression module 6 guarantees thin plate for cooperating base modules 7 to smooth thin plate
Flatness;The base modules 7 are used to provide the benchmark after compressing for compression module 6;Wherein, the compression module 6 includes cutting
Mechanism 61, pressing roller 62, pressing roller holder 63, spring, sliding block are pitched, 61 both ends of scissors mechanism are mounted on two branch by sliding block
It erects on column 5, the sliding block of 61 upper end of scissors mechanism is slidably mounted in the sliding slot of bracket upright post 5, and upper end of slide block is equipped with spring, is cut
The sliding block of fork 61 lower end of mechanism is slidably mounted in the sliding slot of bracket upright post 5, two hinge joints in the middle part of 61 lower end of scissors mechanism
It is equipped with pressing roller holder 63;63 upper center of pressing roller holder is hinged on the hinge joint of 61 lower end of scissors mechanism, pressure roller branch
63 lower end of frame is equipped with pressing roller 62, and 63 both ends of pressing roller holder are connect by spring with scissors mechanism 61;In use, thin plate enters base
Between quasi-mode block 7 and compression module 6, two sliding seats 2 of motor driven are close, and sliding seat 2 drives the pressing roller 62 of upper end to thin
The transverse direction of plate is positioned, while sliding seat 2 drives scissors mechanism 61 to shrink by bracket upright post 5, and then drives scissors mechanism
The pressing roller 62 of 61 lower ends compresses thin plate, and the spring of 61 upper end of scissors mechanism is that pressing roller 62 provides precompression, ties
The base modules 7 of thin plate lower end are closed, final realize flattens thin plate;63 upper end of pressing roller holder is hinged on scissors mechanism 61
It on hinge joint, ensure that pressing roller 62 can be bonded with thin sheet surface, and then ensure that the precision after thin plate is leveled.
As a kind of embodiment of the invention, the base modules 7 include grafting axis 71, benchmark idler wheel 72, middle part branch
Cylindrical hole, the radially even separation in one end end face of grafting axis 71 is arranged in one end end face center of dagger 73, the grafting axis 71
Several sectors, several sector intervals removal on one end end face of grafting axis 71, one end of two grafting axis 71 are plugged in together,
The other end of grafting axis 71 is rotatably installed in the upper end of sliding seat 2 by mounting base 21, is equipped with below the inserted terminal of grafting axis 71
The middle part of midfoot support post 73, grafting axis 71 is equipped with benchmark idler wheel 72;The midfoot support upper surface is arranged to semicircle cambered surface, and half
Arc surface is bonded with the cylindrical surface of grafting axis 71, and midfoot support lower end is fixedly connected on the upper end of bottom plate 1;In use, sliding seat 2
Drive the inserted terminal of two grafting axis 71 that opposite sliding occurs, the sector structure of the inserted terminal even partition of grafting axis 71 was both realized
Grafting axis 71 can opposite sliding, the grafting axis 71 after guaranteed two grafting is able to bear certain moment of flexure, Jin Erbao
The precision of the benchmark idler wheel 72 on grafting axis 71 is demonstrate,proved;Midfoot support upper surface is arranged to semicircle cambered surface, has both realized to grafting
The supporting role of the inserted terminal of axis 71, while facilitating the installation and maintenance of grafting axis 71.
As a kind of embodiment of the invention, semi-circular recesses are set on the binding face of the inserted terminal of the grafting axis 71
711;In use, the semi-circular recesses 711 being arranged on the binding face of inserted terminal are spliced into after two grafting axis 71 are plugged in together
Cylindrical hole, is passed through lubricating oil in cylindrical hole, cylindrical when sliding seat 2 drives two grafting axis 71 are opposite to slide
Lubricating oil in hole is lubricated the binding face on grafting axis 71, leads to two after preventing the fitting surface wear because of grafting axis 71
The concentricity of 71 grafting axis 71 of grafting axis has deviation, and then influences the precision of benchmark idler wheel 72, the final processing essence for influencing thin plate
Degree.
As a kind of embodiment of the invention, the semicircle cambered surface bottom setting No.1 annular of the midfoot support post 73 is recessed
Slot 731;In use, being passed through lubricating oil in the No.1 annular groove 731 of midfoot support post 73, lubricating oil can either be to grafting axis
71 inserted terminal is adequately lubricated, while the semicircle cambered surface friction of grafting axis 71 and midfoot support post 73 can be generated again
Heat is absorbed, and then plays cooling effect, and then eliminates grafting axis 71 because deforming caused by fever, and then guarantee
The precision of benchmark idler wheel 72 on grafting axis 71.
As a kind of embodiment of the invention, 731 bottom of No.1 annular groove on the grafting axis 71 is arranged No. two
Annular groove 732, No. two annular grooves 732 are interior to be equipped with arc panel 74;Described 74 one end of arc panel is hinged on No. two annular grooves
732 one end, the hinged place of arc panel 74 are equipped with torsional spring, and 74 other end of arc panel is equipped with No.1 idler wheel 75,74 upper end of arc panel
Vertical plate 741 is set close to the side of No.1 idler wheel 75, roller 76 is equipped between 74 upper surface of arc panel and grafting axis 71;The rolling
One group of spring is equipped between the vertical plate 741 of 74 upper end of column 76 and arc panel;One is arranged on the cylindrical surface of the No.1 idler wheel 75
Circular arc protrusion;In use, benchmark idler wheel 72 drives grafting axis 71 to rotate, grafting axis 71 drives roller 76 arcuately by frictional force
The upper surface of plate 74 rolls, and realizes that the lubricating oil between roller 76 and vertical plate 741 is extruded between the binding face of grafting axis 71,
It realizes and is adequately lubricated between binding face;75 turns of No.1 idler wheel of 74 end of arc panel are driven while grafting axis 71 rotates
Dynamic, when the circular arc protrusion 751 on No.1 idler wheel 75 contacts grafting axis 71, arc panel 74 is swung, so arc panel 74 be detached from
The contact of roller 76, the arcuately 74 surface reverse slide of plate of roller 76, when No.1 idler wheel 75 is detached from and 71 relative rolling of grafting axis
When, arc panel 74 re-starts contact roller 76.
As a kind of embodiment of the invention, one layer of wear-resisting antiskid coating is arranged in 75 surface of No.1 idler wheel;It uses
When, 75 surface of No.1 idler wheel setting wear-resisting antiskid coating ensure that effectively to be rolled between No.1 idler wheel 75 and grafting axis 71
It is dynamic, and then guarantee that arc panel 74 is reliably detached between roller 76, it finally ensure that lubricating oil is extruded to grafting axis
Between 71 binding face, lubricate the inserted terminal of grafting axis 71 adequately.
As a kind of embodiment of the invention, the sliding block lower end of 61 upper end of scissors mechanism is equipped with crushing block 51;Institute
It states crushing block 51 to be slidably mounted in sliding slot, one end of the hinged No.1 connecting rod 52 in 51 lower end of crushing block;The No.1 connecting rod 52
The other end is hinged on 53 upper end of nut;54 upper end of hinged No. two connecting rods in 53 lower end of nut is equipped in the threaded hole of nut 53
Screw rod 55;54 lower end of No. two connecting rods is hinged on the rectangle trench bottom in bracket upright post 5;The screw rod 55 is rotatably installed in branch
It erects in the mounting hole on column 5;In use, rotation screw rod 55, screw rod 55 pushes nut 53 mobile, and then passes through No.1 connecting rod 52
It pushes crushing block 51 to slide with No. two connecting rods 54, pushes the sliding block of 61 upper end of scissors mechanism mobile eventually by crushing block 51, it is real
Now the elemental height of the pressing roller 62 of 61 lower end of scissors mechanism is adjusted, the scope of application of guide and guards has been turned up.
In use, thin plate enters between base modules 7 and compression module 6, two sliding seats 2 of motor driven are close, sliding
Seat 2 drives the pressing roller 62 of upper end to position the transverse direction of thin plate, while sliding seat 2 drives scissor machine by bracket upright post 5
Structure 61 is shunk, and then the pressing roller 62 of 61 lower end of scissors mechanism is driven to compress thin plate, the spring of 61 upper end of scissors mechanism
Precompression is provided for pressing roller 62;Mounting base 21 drives the inserted terminal of two grafting axis 71 that opposite sliding, grafting occurs simultaneously
The sector structure of the inserted terminal even partition of axis 71 both realized grafting axis 71 can opposite sliding, after guaranteed two grafting
Grafting axis 71 be able to bear certain moment of flexure, and then ensure that the precision of the benchmark idler wheel 72 on grafting axis 71;Midfoot support
73 upper surface of column is arranged to semicircle cambered surface, has both realized the supporting role of the inserted terminal to grafting axis 71, while facilitating grafting
The cooperation of the installation and maintenance of axis 71, pressing roller 62 and benchmark idler wheel 72, which is finally realized, flattens thin plate;Pressing roller holder 63
Upper end is hinged on the hinge joint of scissors mechanism 61, ensure that pressing roller 62 can be bonded with thin sheet surface, and then ensure that thin
Plate be leveled after precision;When sliding seat 2 drives two grafting axis 71 are opposite to slide, the lubricating oil in cylindrical hole is to grafting
Binding face on axis 71 is lubricated, and leads to two grafting axis, 71 grafting axis 71 after preventing the fitting surface wear because of grafting axis 71
Concentricity has deviation, and then influences the precision of benchmark idler wheel 72, the final machining accuracy for influencing thin plate;In midfoot support post 73
Be passed through lubricating oil in No.1 annular groove 731, lubricating oil can either the inserted terminal to grafting axis 71 adequately lubricated, simultaneously
The heat that can be generated again to the semicircle cambered surface friction of grafting axis 71 and midfoot support post 73 absorbs, and then plays cooling effect
Fruit, and then grafting axis 71 is eliminated because deforming caused by fever, and then ensure that the precision of benchmark idler wheel 72 on grafting axis 71;
Benchmark idler wheel 72 drive grafting axis 71 rotate, grafting axis 71 by frictional force drive roller 76 arcuately plate 74 upper surface rolling
It is dynamic, it realizes that the lubricating oil between roller 76 and vertical plate 741 is extruded between the binding face of grafting axis 71, realizes between binding face
Adequately lubricated;The No.1 idler wheel 75 of 74 end of arc panel is driven to rotate while grafting axis 71 rotates, when No.1 idler wheel
On 75 circular arc protrusion 751 contact grafting axis 71 when, arc panel 74 swing, and then arc panel 74 be detached from the contact of roller 76,
The arcuately 74 surface reverse slide of plate of roller 76, when No.1 idler wheel 75 is detached from 71 relative rolling of grafting axis, 74 weight of arc panel
Newly carry out contact roller 76;75 surface of No.1 idler wheel setting wear-resisting antiskid coating ensure that between No.1 idler wheel 75 and grafting axis 71
It is effectively rolled, and then guarantees that arc panel 74 is reliably detached between roller 76, finally ensure that lubricating oil quilt
It is expressed between the binding face of grafting axis 71, lubricates the inserted terminal of grafting axis 71 adequately.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.