CN107520911A - Wood working band sawing machine mechanism for quick tensioning and wood working band sawing machine - Google Patents
Wood working band sawing machine mechanism for quick tensioning and wood working band sawing machine Download PDFInfo
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- CN107520911A CN107520911A CN201710896345.3A CN201710896345A CN107520911A CN 107520911 A CN107520911 A CN 107520911A CN 201710896345 A CN201710896345 A CN 201710896345A CN 107520911 A CN107520911 A CN 107520911A
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- tensioning
- sawing machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B13/00—Band or strap sawing machines; Components or equipment therefor
- B27B13/08—Arrangements for stretching the band saw blade
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Abstract
The present invention discloses wood working band sawing machine mechanism for quick tensioning and wood working band sawing machine, and mechanism for quick tensioning includes tensioning frame, tension assembly, cam pack, director element and upper whorl axial component, and the body of tensioning frame and wood working band sawing machine is fixed；Tension assembly runs through tensioning frame, can be relative to tensioning frame elevating movement；Cam pack is connected with tension assembly, being capable of lifting and release tension assembly when cam pack is driven；Director element is connected with tension assembly, to be synchronized with the movement with tension assembly；Director element is connected with tensioning frame simultaneously, so as to relative to tensioning frame elevating movement；Upper whorl axial component is connected with director element, so as to around director element axis oscillating；Upper whorl axial component is connected with wood working band sawing machine upper wheel, when being driven so as to upper whorl axial component, drives upper wheel to be synchronized with the movement.It is an advantage of the invention that being applied to small band saw machine operation, band sawing machine space is saved, and can realize that mechanism for quick tensioning split is swung, improves wobble accuracy.
Description
Technical field
The present invention relates to woodworking machinery technical field, specifically, is related to a kind of wood working band sawing machine mechanism for quick tensioning
And wood working band sawing machine.
Background technology
Wood working band sawing machine, be it is a kind of have by saw of ring-type bands for band for no reason, be wound on two saw wheels make it is unidirectional continuous
Linear motion carrys out the saw of sawing timber.Wood working band sawing machine mainly by upper wheel, lower saw wheel, drive device, workbench, saw blade,
Strainer and body etc. form.The lower saw wheel of usual vertical saw is driving wheel, and upper wheel is driven pulley, and saw blade is installed on saw
Wheel by drive device with the periphery of lower saw wheel, driving lower saw wheel, and driving force is passed into upper wheel by saw blade.Saw blade
Tensioning is then realized by the strainer being connected with upper wheel.
In band saw, strainer is the important component of band saw, and it uses the tensioning of mechanism elastomer
Power on the surface of wheel, is rotated saw blade tightly docile by wheel and drives saw blade motion, so as to reach the purpose of cutting timber.
The species of saw blade strainer is more at present, has quick tension type, without quick tension type.Quick tension type and cyclotomy week cam type
And edge cam type.Strainer without quick tension type can not realize quick tensioning, unclamp or need to adjust after changing saw blade
It is whole；Mechanism for quick tensioning less stable with peripheral cam, easily causes vibrations.Edge cam type can realize strainer
Quick tensioning, be widely used in wood working band sawing machine.
The strainer of existing wood working band sawing machine such as China Patent No. CN201736289U discloses a kind of mechanism for quick tensioning
And the band saw containing the mechanism, it is the structural representation of prior art mechanism for quick tensioning referring to Fig. 1, wherein, big handwheel
Put down, and the sliding block being connected with upper wheel is puts, the upper wheel of the structure is larger, it is necessary to which band sawing machine has with lower saw wheel spacing
Enough installing spaces, suitable for the installation of large scale saw wheel.Meanwhile the tilting member space of above-mentioned mechanism for quick tensioning is work
Gap between connecting bolt and double threaded screw, because double threaded screw is connected with sliding bar, i.e., horizontal hunting part is except loose joint spiral shell
The Integral swinging mode of bolt, tilting member is more, and wobble accuracy is not high.
The content of the invention
It is an object of the invention to provide a kind of wood working band sawing machine mechanism for quick tensioning and wood working band sawing machine, suitable for small-sized
Band sawing machine operation, band sawing machine space is saved, and can realize that mechanism for quick tensioning split is swung, improve wobble accuracy.
The technical scheme is that：A kind of wood working band sawing machine mechanism for quick tensioning, the wood working band sawing machine is with quickly
Strainer includes：
Tensioning frame, the body of the tensioning frame and the wood working band sawing machine are fixed；
Tension assembly, the tension assembly are arranged at the tensioning frame, and can be relative to the tensioning frame elevating movement；
Cam pack, the cam pack are connected with the tension assembly, to be lifted when the cam pack is driven
Rise and discharge the tension assembly；
Director element, the director element are connected with the tension assembly, to be synchronized with the movement with the tension assembly；Institute
State director element while be connected with the tensioning frame, so as to relative to the tensioning frame elevating movement；
Upper whorl axial component, the upper whorl axial component are connected with the director element, to be put around the director element axis
It is dynamic；The upper whorl axial component is connected with the wood working band sawing machine upper wheel, when being driven so as to the upper whorl axial component, drives institute
Upper wheel is stated to be synchronized with the movement.
Preferably, the director element is connected with the tensioning side plate of the tensioning frame both sides, and the tensioning side plate is provided with
The guide groove for guiding the director element to move up and down, two ends of the director element are respectively positioned at two tensioning side plates
Guide groove at.
Preferably, the director element is connected with the upper whorl axial connecting plate of the upper whorl axial component, the upper whorl axial connecting plate
Can be around the director element axis oscillating.
Preferably, the director element is connected with being arranged at the tensioning bottom end assemblies of the tension assembly bottom, described
Tensioning bottom end assemblies are located inside the tensioning frame, and the tensioning bottom end assemblies are provided with the installation for driving the director element motion
Frame.
Preferably, the mounting bracket uses downward opening semi-surrounding structure, and the mounting bracket includes two to setting
The installation side plate put, installation side plate are provided with side plate through-hole, and two ends of the director element are connected to two installation sides
The side plate through-hole of plate.
Preferably, the tensioning bottom end assemblies also include being arranged at the thread plate inside the mounting bracket, the screw thread
Elastomer is set between plate and the mounting bracket, and the thread plate moves up, and can compress the elastomer and drive the peace
Shelve and move up；Mounting bracket and elastomer the stress release, can drive the thread plate to fall after rise.
Preferably, the tension assembly also includes tensioning transmission device, and the tensioning transmission device runs through the cam
Component, the tensioning frame and the tensioning bottom end assemblies, the tensioning transmission device is matched somebody with somebody with the thread plate for screw thread merges phase
Interaction, the tensioning transmission device, which is provided with, carries out spacing limited step to cam pack ascending motion.
Preferably, the cam pack includes convex wheel assembly and lower cam component, the convex wheel assembly and described
Lower cam component uses symmetrically arranged edge cam structure, and the convex wheel assembly is tethered with the tensioning frame by positioning
Connect, when the lower cam component is driven, the convex wheel assembly can be driven to be moved up and down along pilot pin.
Preferably, the upper whorl axial component also includes regulation and locking member, and the regulation and locking member include adjusting
Handle and wing nut are saved, the regulation handle coordinates with tensioning frame screw thread, when the regulation handle is driven, can drive institute
The upper whorl axial connecting plate for stating upper whorl axial component is used for the regulation handle and the wood around director element axis oscillating, the nut
Work band sawing machine body locks.
Present invention simultaneously discloses a kind of wood working band sawing machine, containing mechanism for quick tensioning described above, the quick tensioning
Mechanism is connected to the upper wheel of the wood working band sawing machine by upper whorl axial.
The present invention having the beneficial effect that compared with prior art：
1) lower difference is put with existing mechanism for quick tensioning tensioning handwheel, mechanism for quick tensioning of the invention is using tensioning handwheel
Put and upper whorl axial component put under structure, can shorten spacing between upper wheel and lower saw wheel, increase cutting-height, save carpenter
Band sawing machine inner space, and convenient operation, be particularly suitable for use in small band saw machine operation；
2) mechanism for quick tensioning only upper whorl axial components different from existing mechanism for quick tensioning Integral swinging mode, of the invention
Along the axis oscillating of director element, tilting member is reduced, improves wobble accuracy；
3) connected between tensioning frame and convex wheel assembly by pilot pin, it is ensured that can only be risen during convex wheel assembly stress
Drop motion, to prevent overhead cam component from rotating；
4) cam pack uses a pair of symmetrically arranged edge cam structures, by convex wheel assembly and lower cam component group
Into both mating surfaces can realize that high face switches with high face and high face and the end face of bottom surface, to realize the quick tensioning of saw blade
And quick release；
5) tensioning bottom end assemblies are provided with thread plate, and thread plate uses rectangle thread plate, and nutted rod can drive thread plate
Move up, thread plate move up can compresses elastomeric and drive mounting bracket move up；When elastomer elastic force discharges and tensioning bottom
End component can be driven nutted rod to fall after rise by during gravity, and in above process, because thread plate uses rectangle structure, its
Motion process will not rotate, to improve release and tensioning efficiency；
6) thrust bearing is arranged between cam pack and tensioning cover plate, and thrust bearing and cam pack bottom end face,
It is tensioned cover plate to be in close contact, when cam pack is driven, the rotation of thrust bearing one side auxiliary cam component is smooth, the opposing party
Face will aid in nutted rod ascending motion due to being acted on by cam pack；
7) mechanism for quick tensioning of the invention also includes regulation and locking member, is conveniently adjusted wood working band sawing machine upper wheel phase
Same vertical plane is always positioned at for lower saw wheel, saw blade therein height on upper wheel, lower saw wheel are cylindrical is connected to enable
Speed operating is without offseting.
Brief description of the drawings
Fig. 1 is prior art mechanism for quick tensioning structural representation；
Fig. 2 is mechanism for quick tensioning structural representation of the present invention；
Fig. 3 is tensioning frame structural representation；
Fig. 4 is mechanism for quick tensioning explosive view；
Fig. 5 is nutted rod structural representation；
Fig. 6 is mounting bracket structural representation；
Fig. 7 is overhead cam component structure diagram；
Fig. 8 is lower cam component structure diagram；
Fig. 9 is upper whorl axial link configuration schematic diagram；
Figure 10 is the mechanism for quick tensioning schematic diagram (one) under tensioning state；
Figure 11 is the mechanism for quick tensioning schematic diagram (two) under tensioning state；
Figure 12 is the mechanism for quick tensioning schematic diagram (three) under tensioning state；
Figure 13 is the mechanism for quick tensioning schematic diagram (four) under tensioning state；
Figure 14 is the mechanism for quick tensioning schematic diagram (one) under quick release state；
Figure 15 is the mechanism for quick tensioning schematic diagram (two) under quick release state；
Figure 16 is the mechanism for quick tensioning schematic diagram (three) under quick release state；
Figure 17 is the mechanism for quick tensioning schematic diagram (four) under quick release state；
Figure 18 is wood working band sawing machine structural representation.
In figure, 1 tensioning frame；2 tension assemblies；3 cam packs；4 director elements；5 upper whorl axial components；6 regulations and locking member
Part；7 mechanism for quick tensioning；8 upper wheels；9 times saw wheels；10 saw blades；16 workbench；17 bodies；
11 tensioning cover plates；12 tensioning fixed plates；13 tensioning side plates；14 lockplates；15 first installing spaces；
111 cover plate keyholes；112 cover plate axis holes；
131 first tensioning side plates；132 second tensioning side plates；133 guide grooves；
21 tensioning handwheels；22 tensioning transmission devices；23 tensioning bottom end assemblies；
211 straight pins；
221 nutted rods；222 thrust bearings；223 limited steps；224 grooves；
231 mounting brackets；232 elastomers；233 thread plates；
2311 installation top plates；2312 installation side plates；2313 top plate axis holes；2314 side plate through-holes；
31 convex wheel assemblies；32 lower cam components；33 pilot pins；34 handlebars；35 high faces；36 inclined-planes；37 bottom surfaces；
311 convex wheel plates；312 overhead cam axis holes；313 cam keyholes；
321 handle balls
41 axis of guides；42 shaft block rings；
51 upper whorl axials；52 upper whorl axial connecting plates；53 hex bolts；
521 connecting plate panels；522 connecting plate side plates；523 notches；
61 regulation handles；62 wing nuts.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.
Referring to Fig. 2, the present invention discloses a kind of wood working band sawing machine mechanism for quick tensioning, for the saw blade to wood working band sawing machine
Carry out preliminary tensioning operation, quick release operation and be quickly tensioned operation, the mechanism for quick tensioning includes：
Tensioning frame 1, the body of tensioning frame 1 and wood working band sawing machine are fixed；
Tension assembly 2, tension assembly 2 run through tensioning frame 1, can be relative to the elevating movement of tensioning frame 1；
Cam pack 3, cam pack 3 are connected with tension assembly 2, when the lower cam component 32 of cam pack 3 is driven,
Being capable of lifting and the convex wheel assembly 31 of release and tension assembly 2；
Director element 4, director element 4 are connected with tension assembly 2, can be synchronized with the movement with tension assembly 2；Director element 4
It is connected simultaneously with tensioning frame 1, can be relative to the elevating movement of tensioning frame 1；
Upper whorl axial component 5, upper whorl axial component 5 are connected with director element 4, can be around the axis oscillating of director element 4；Upper wheel
Shaft assembly 5 is connected with wood working band sawing machine upper wheel, when the upper whorl axial component 5 is driven, upper wheel will be driven to be synchronized with the movement.
Referring to Fig. 3, tensioning frame 1 is the fixed mount being connected with the body of wood working band sawing machine, mechanism for quick tensioning of the present invention
Tensioning frame 1 uses integral type welding structure, including tensioning cover plate 11, tensioning fixed plate 12, tensioning side plate 13 and lockplate 14,
Tight cover plate 11 is positioned at the top of tensioning fixed plate 12 and vertical with being tensioned fixed plate 12, and tensioning side plate 13 is positioned at 12 liang of fixed plate of tensioning
Side and with tensioning fixed plate 12 it is vertical, lockplate 14 be located at both sides tensioning side plate 13 between, and lockplate 14 and be tensioned fixed plate
12 are located at same vertical plane.Wherein, tensioning frame 1 is fixed by being tensioned fixed plate 12 and the body of wood working band sawing machine, for realization and machine
Body fixes reliability, and tensioning fixed plate 12 is provided with multiple bolt fixed bits, is fixed by bolt by fixed plate 12 is tensioned with body.
Tensioning frame 1 is connected by being tensioned cover plate 11 with tension assembly 2 and cam pack 3, to realize the connection with both, is tensioned cover plate
11 are provided with cover plate keyhole 111 and cover plate axis hole 112, and cover plate axis hole 112 is common positioned at the middle part of tensioning cover plate 11, cover plate keyhole 111
There are two, two cover plate keyholes 111 are distributed in the both sides of cover plate axis hole 112, that is, pass through two side cover plate keyholes 111 and cam pack
3 connect and are connected by cover plate axis hole 112 with tension assembly 2.
Need what is illustrated herein, tensioning fixed plate 12 can use split-type structural also to use integral type with tensioning side plate 13
Structure, when using split-type structural, tensioning fixed plate 12 and both vertical weldings of tensioning side plate 13, when using integral structure
When, the integral structure is L shaped plate, i.e., including mutually perpendicular tensioning fixed plate 12 and tensioning side plate 13.
Tensioning frame 1 is connected by being tensioned side plate 13 with director element 4, wherein, tensioning side plate 13 includes the first tensioning side plate
131 and second are tensioned side plate 132, and two tensioning side plate (131,132) structures are identical and are arranged oppositely, two tensioning side plates
(131,132) are vertical with tensioning cover plate 11, tensioning fixed plate 12, and are tensioned side plate 13, tensioning cover plate 11, tensioning fixed plate
12nd, lockplate 14 encloses to form the first installing space 15 jointly, and first installing space 15, which is used to install, accommodates tension assembly 2
It is tensioned bottom end assemblies, upper whorl axial component 5 and director element 4.Tensioning side plate 13 is provided with leads to the elevating movement of director element 4
To the guide groove 133 of effect, 4 two ends of director element are respectively at the guide groove 133 of two tensioning side plates 13, and can edge
Guide groove 133 moves, and when tension assembly 2 drives director element 4 to lift by driving, director element 4 will be along above-mentioned guiding
The elevating movement of groove 133, the both ends of guide groove 133 are simultaneously spacing to the elevating movement of director element 4 progress.
Referring to Fig. 1 and Fig. 4, tension assembly 2 is used for the lifting tensioning for realizing the mechanism for quick tensioning, tensioning group of the invention
Part 2 includes tensioning handwheel 21, tensioning transmission device 22 and tensioning bottom end assemblies 23.Wherein, the side of transmission device 22 is tensioned with opening
Tight handwheel 21 connects, and the tensioning opposite side of transmission device 22 sequentially passes through tensioning frame 1 and tensioning bottom end assemblies 23, and is tensioned transmission
Device 22 is matched somebody with somebody for screw thread with tensioning bottom end assemblies 23 and merges interaction, i.e., can drive and open when being tensioned transmission device 22 and moving
Tight bottom end assemblies 23 are synchronized with the movement, and when being tensioned the release of the stress of bottom end assemblies 23 tensioning transmission device 22 can be driven same
Step falls after rise.
Structures different from existing mechanism for quick tensioning, that tension assembly 2 of the invention is put using tensioning handwheel, work as rotation
When being tensioned handwheel 21, by being tensioned transmission device 22 tensioning bottom end assemblies 23 will be driven to be synchronized with the movement.
The tensioning side of transmission device 22 is connected with tensioning handwheel 21, drives tensioning transmission device 22 to transport by tensioning handwheel 21
It is dynamic；It is tensioned the opposite side of transmission device 22 with tensioning bottom end assemblies 23 screw thread to coordinate, and is interacted with tensioning bottom end assemblies 23.For
Realize above-mentioned function, tensioning transmission device 22 of the invention includes nutted rod 221 and thrust bearing 222, the side of nutted rod 221 with
Tensioning handwheel 21 connects, and the opposite side of nutted rod 221 sequentially passes through the tensioning cover plate of cam pack 3, thrust bearing 222, tensioning frame 1
11 are connected with tensioning bottom end assemblies 23.
Referring to Fig. 4 to 5, nutted rod 221 use upper coarse and lower fine threaded rod structure, nutted rod 221 include upper nutted rod and
Lower nutted rod, upper nutted rod external diameter are more than lower nutted rod external diameter, and the joint portion of upper nutted rod and lower nutted rod is for cam
The ascending motion of component 3 carries out spacing limited step 223.Tensioning handwheel 21 is connected to nutted rod upper end, is tensioned the band of handwheel 21
There is the insertion of straight pin 211 and in the groove 224 of upper nutted rod upper end, rotation tensioning handwheel 21 drives nutted rod 221 to rotate together.
Cam pack 3, thrust bearing 222, tensioning cover plate 11 and the tensioning bottom end assemblies 23 of tensioning frame 1 are sequentially connected to lower nutted rod.
Thrust bearing 222 is arranged between cam pack 3 and tensioning cover plate 11, and thrust bearing 222 and the bottom end face of cam pack 3,
Tensioning cover plate 11 is in close contact, when cam pack 3 is driven, the rotating flow of 222 one side auxiliary cam component of thrust bearing 3
Freely, on the other hand due to promoting cam pack 3 nutted rod 221 can be aided in rise.
Tensioning bottom end assemblies 23 be located at the first installing space 15 of tensioning frame 1, be tensioned bottom end assemblies 23 and nutted rod 221 and
Director element 4 connects simultaneously, for while movement under force, driving upper whorl axial component 5 to be synchronized with the movement.To realize above-mentioned work(
Can, tensioning bottom end assemblies 23 include mounting bracket 231, elastomer 232 and thread plate 233.Mounting bracket 231 is using downward opening half
Structure is surrounded, elastomer 232 is respectively positioned on inside mounting bracket 231, and thread plate 233 is located at below elastomer 232, under nutted rod 221
End is connected after sequentially passing through mounting bracket 231, elastomer 232 with thread plate 233.Nutted rod 221 can be driven on thread plate 233
Move, thread plate 233 move up can compresses elastomeric 232 and drive mounting bracket 231 move up；The elastic force of elastomer 232 discharge and
Tensioning bottom end assemblies 23 can be driven nutted rod 221 to fall after rise by during gravity.
Referring to Fig. 4 and Fig. 6, mounting bracket 231 preferably uses U-board, and the U-shaped opening of U-board is down.Mounting bracket 231 includes
Installation top plate 2311 and the installation side plate 2312 being arranged oppositely positioned at installation top plate 2311 both sides.Connect for convenience with nutted rod 221
Connect, installation top plate 2311 is provided with top plate axis hole 2313, and the bottom of nutted rod 221 passes through top plate axis hole 2313.And for convenience of with leading
Connected to element 4, installation side plate 2312 is provided with side plate through-hole 2314, and side plate through-hole 2314 is run through at the both ends of director element 4.Meanwhile
To realize the initial tension state of tension assembly 2, tensioning bottom end assemblies 23, which are set, has springy elastomer 232, passes through elasticity
The elasticity of body 232 maintains the tensioning state of mechanism for quick tensioning.Elastomer 232 preferably uses disk spring, the bottom of nutted rod 221
It is threadedly coupled after through elastomer center with thread plate 233, and the stroke of cam pack 3 is more than elastomer 232 and discharges resilience
Stroke, to facilitate saw blade installation and unloading.Thread plate 233 preferably uses rectangle thread plate, and rectangle thread plate is arranged at U-shaped
In plate, it is defined by motion of the U-board to rectangle thread plate, to prevent rectangle thread plate from occurring in lifting process
Relatively rotate.
With continued reference to Fig. 3~Fig. 6, as described above, tensioning bottom end assemblies 23 are located at the first installing space 15 of tensioning frame 1,
I.e. mounting bracket 231 is located at the first installing space 15 of tensioning frame 1, the position relationship of 231 each plate of mounting bracket and 1 each plate of tensioning frame
For：Top plate 2311 is installed top plate is installed positioned at the inner side of tensioning side plate 13 positioned at the lower section of tensioning cover plate 11, installation side plate 2312
Leave between 2311 and tensioning cover plate 11 and stayed between mounting bracket activity space, and the outside of installation side plate 2312 and tensioning side plate 13
There is upper whorl axial component installing space.It should be noted that when mounting bracket 231 and tensioning frame 1 are installed, director element 4 is from outside
Guide groove 133, side plate through-hole 2314 are sequentially passed through to inner side, the active path of mounting bracket 231 is defined in guide groove 133.
The motion process of tension assembly 2 is：Before saw blade is not tensioned, when rotation is tensioned handwheel 21, nutted rod 221 will be driven synchronous
Rotate, now, the lower end of nutted rod 221 screws in thread plate 233, and drives thread plate 233 to move up, and thread plate 233 compresses when moving up
Elastomer 232, and drive mounting bracket 231 synchronously to move up, while drive and be transverse in the director element 4 of installation side plate 2312 along guiding
Groove 133 moves up, and when saw blade starts tensioning, mounting bracket 231 is in fine motion state, when continuing rotation tensioning handwheel 21, thread plate
233 continue to move up compresses elastomeric 232, until being working condition saw blade tensioning, realize that the tensioning of tension assembly 2 was lifted
Journey.
Referring to Fig. 4, Fig. 7 and Fig. 8, cam pack 3 includes convex wheel assembly 31 and lower cam component 32, convex wheel assembly 31
Symmetrically arranged edge cam structure is used with lower cam component 32, both mating surfaces include high face 35, the and of inclined-plane 36
Bottom surface 37, smoothly transitted between high face 35 and bottom surface 37 by inclined-plane 36, with facilitate between the two end face smoothly switch.The present invention's
Lower cam component 32 is driving link, and convex wheel assembly 31 is driven member.Instantly when cam pack 32 is driven, both can be caused to match somebody with somebody
The high face 35 that conjunction face is realized is contacted with high face 35 or high face 35 contacts with bottom surface 37.Meanwhile convex wheel assembly 31 and lower cam group
The mating surface of part 32 also includes lock face, and lock face is arranged at the high side of face 35 and the side of bottom surface 37, with current mating surface
Cam pack 3 is locked, and prevents cam pack 3 to be rotated further, it is ensured that the reliability of tensioning and releasing orientation.
Referring to Fig. 4, Fig. 7, convex wheel assembly 31 includes convex wheel plate 311, and convex wheel plate 311 is located under upper nutted rod 221
Side, the convex ascending motion of wheel plate 311 is carried out by the limited step 223 of upper nutted rod 221 spacing.Convex wheel plate 311 is provided with
Overhead cam axis hole 312 and the cam keyhole 313 for being distributed in the both sides of overhead cam axis hole 312, convex wheel plate 311 pass through overhead cam axis hole
312 are connected with tension assembly 2 and are connected by cam keyhole 313 with tensioning frame 1.Herein, it is necessary to explanation, convex wheel plate
311 with tensioning frame 1 when being connected, and two positions of cam keyhole 313 are corresponding with two positions of cover plate keyhole 111, and using fixed
Two cam keyholes 313 and two cover plate keyholes 111 are attached by position bolt 33, ensure convex wheel assembly 31 by pilot pin 33
Elevating movement can be only carried out during stress, to prevent overhead cam component 31 from rotating.
Referring to Fig. 4, Fig. 8, likewise, lower cam component 32 is provided with lower cam axis hole, overhead cam axis hole 312, lower cam axle
Hole is respectively positioned on the axis of nutted rod 221, i.e., nutted rod 221 is also cross overhead cam axis hole 312, lower cam axis hole.For convenience
Lower cam component 32 is driven, the side of lower cam component 32 is connected with handle ball 321, i.e. operation handle ball 321 by handlebar 34,
Lower cam component 32 can be driven to be rotated relative to convex wheel assembly 31, to realize the variation of both mating surfaces.
The motion process of cam pack 3 is：When operation handle ball 321 so that convex wheel assembly 31 and lower cam component 32
High face when being contacted with high face, convex wheel assembly 31 is elevated along the direction of pilot pin 33, and its hoisting depth passes through upper nutted rod 221
Limited step 223 between lower nutted rod 221 is defined, and now, operable tensioning handwheel 21, realizes tension assembly 2
Tensioning lifting；When continuation operation handle ball 321 so that the bottom surface of convex wheel assembly 31 and lower cam component 32 contacts with high face
When, tension assembly 2 falls after rise under the restoring force of elastomer 232 and upper wheel Action of Gravity Field, and drives convex wheel assembly 31 along calmly
Fall after rise in the position direction of bolt 33.
With continued reference to Fig. 4, director element 4 uses the axis of guide 41, the axis of guide 41 through tensioning side plate 13 guide groove 133 with
And the side plate through-hole 2314 of installation side plate 2312, to realize and be tensioned being synchronized with the movement for bottom end assemblies 23, and pass through guide groove
133 further limit the scope being synchronized with the movement.The axis of guide 41 is provided with shaft block ring 42, and shaft block ring 42 is located at the two of the axis of guide 41
End, the tensioning side plate 13 that axle 41 and tensioning frame 1 are directed to by shaft block ring 42 are fixed, with prevent the axis of guide 41 relative to
Axial float occurs for tight frame 1.Herein it is to be appreciated that with tensioning side plate 13, installation side plate 2312 relative turn can occur for the axis of guide 41
Move or can not relatively rotate, no longer limit herein.The axis of guide 41 is connected with upper whorl axial component 5 simultaneously, and can be driven
The elevating movement of axle assembly 5.
The motion process of director element 4 is：
When tension assembly 2 is tensioned lifting, director element 4 is with the Synchronous lifting of tension assembly 2；When director element 4 falls after rise
When, tension assembly 2 is synchronous to be fallen after rise.
Referring to Fig. 2, Fig. 4 and Fig. 9, upper whorl axial component 5 designs relative to tensioning frame 1 for split, as described above, tensioning frame 1 with
Wood working band sawing machine body is fixed, and is remained stationary as during any, only realizes that wood working band sawing machine works by upper whorl axial component 5
Needed for process axial wobble is done around the axis of guide 41.Upper whorl axial component 5 includes upper whorl axial 51 and upper whorl axial connecting plate 52, upper whorl axial 51
The connecting plate of upper whorl axial 51 is fixed in side by hex bolts 53, and the opposite side of upper whorl axial 51 is connected with wood working band sawing machine upper wheel.On
Wheel shaft connecting plate 52 includes connecting plate panel 521 and connecting plate side plate 522.Connecting plate panel 521 is provided with the hole of upper whorl axial 51, and upper whorl axial 51 is worn
The hole of upper whorl axial 51 is crossed to fix with connecting plate panel 521.Connecting plate side plate 522 is located at the both sides of connecting plate panel 521, and connecting plate side plate 522 is provided with
Notch 523, and the above-mentioned axis of guide 41 is mounted on by notch 523.Herein it should be noted that it has been observed that installation side plate 2312
Upper whorl axial component installing space is left between outside and the inner side of tensioning side plate 13, the notch 523 of connecting plate side plate 522 is located at upper whorl axial
The installing space of component 5, i.e. installation side plate 2312, tensioning side plate 13, the position relationship of the three of connecting plate side plate 522 are by outer layer to internal layer
For：It is tensioned 522 → installation side plate of side plate 13 → connecting plate side plate 2312.It is tensioned between the inner side of side plate 13 and the outside of connecting plate side plate 522
Upper whorl axial connecting plate swing space is left, i.e., in band sawing machine operation, only upper whorl axial component 5 is in the upper whorl axial connecting plate water left
Swung in flat swing space, compared with existing Integral swinging mode, swing mode using local, improve wobble accuracy.
Meanwhile as a kind of embodiment of mechanism for quick tensioning of the present invention, for ease of adjusting wood working band sawing machine upper wheel phase
Same vertical plane is always positioned at for lower saw wheel, saw blade therein height on upper wheel, lower saw wheel are cylindrical is connected to enable
Without offseting, mechanism for quick tensioning of the invention also includes regulation and locking member 6 for speed operating, and regulation and locking member 6 include
Regulation handle 61 and wing nut 62, regulation handle 61 are passed perpendicularly through in the lockplate 14 and connecting plate panel 521 of the bottom of tensioning frame 1
Side contacts, coordinated between regulation handle 61 and lockplate 14 using screw thread, after saw blade is tensioned, rotate the screw thread of regulation handle 61
End offsets with being connected the inner side of panel 521.Wing nut 62 is arranged at latch 14 and the joint portion of regulation handle 61, for exchanging
Regulation handle 61 after whole is locked.
The motion process of upper whorl axial component 5 is：
When director element 4 is with 2 Synchronous lifting of tension assembly, upper whorl axial component 5 drives upper wheel to move up；When upper whorl axial group
When part 5 is fallen after rise by gravity, director element 4, tension assembly 2 are synchronous to be fallen after rise.When vertical plane where needing to adjust upper wheel, pass through rotation
Turn regulation handle 61, upper whorl axial connecting plate 52 will be driven to be adjusted to and lower saw wheel around the axial wobble of the axis of guide 41, and then by upper wheel
In same vertical plane.
It is different from the structure put on the upper whorl axial component 5 of existing mechanism for quick tensioning, mechanism for quick tensioning of the present invention it is upper
Axle assembly 5 is underlying, i.e., in the case of constant in lower saw wheel position, the wheelspan that reduces between upper wheel and lower saw wheel, to be applicable
In small band saw machine operation, band sawing machine space is saved.Simultaneously as upper whorl axial component 5 and upper wheel are underlying, also allow for utilizing
Elastomer spring-return and upper wheel gravity fall after rise, compared with prior art, accelerate saw blade release process.
The course of work of mechanism for quick tensioning of the present invention includes initial tension process, quick release process and was quickly tensioned
Journey, wherein, initial tension process is the adjustment saw blade rate of tension process before wood working band sawing machine work, and initial tension process finally reaches
To the initial tension state of saw blade, in the wood working band sawing machine course of work, initial tension state should be in all the time.Sawed when needing to change
, i.e., respectively can fast quick-release by quick release process and quick tensioning process when wood working band sawing machine is in inoperative process during bar
Put and be quickly tensioned saw blade so that saw blade is respectively at quick release state and quick tensioning state, without readjusting saw blade
Rate of tension, you can reach with initial tension state identical rate of tension, with quickly cause saw blade reach the initial tension that can be worked
State.
Initial tension process：
Before wood working band sawing machine normal work, band saw rate of tension need to be adjusted；Operation handle ball 321 first so that on
When the two high face 35 of cam pack 31 and lower cam component 32 contacts, convex wheel assembly 31 is promoted to along the direction of pilot pin 33
At the limited step 223 of nutted rod 221.Again, operation tensioning handwheel 21, tension assembly 2 will be driven to be tensioned lifting, tension assembly
During 2 lifting, director element 4 drives upper whorl axial component 5 and upper wheel to be lifted along the Synchronous lifting of guide groove 133, in lower saw
Take turns it is motionless in the case of, the saw blade being articulated between upper wheel and lower saw wheel is slowly tensioned, until reaching the rate of tension of requirement
When, tensioning handwheel 21 is stopped operation, saw blade reaches initial tension state, and Figure 10~13 are the mechanism for quick tensioning under tensioning state
Schematic diagram.
Quick release process：
When continuation operation handle ball 321 so that the bottom surface 37 of convex wheel assembly 31 and lower cam component 32 connects with high face 35
When touching, convex wheel assembly 31 is driven to be fallen after rise along the direction of pilot pin 33, now the limited step of convex wheel assembly 31 and nutted rod 221
223 depart from, and tension assembly 2 loses position-limiting action, and tension assembly 2 quickly returns under elastomer elastic force and upper wheel Action of Gravity Field
Fall, while upper whorl axial component 5 and upper wheel fall after rise.In the case where lower saw wheel is motionless, the saw between upper wheel and lower saw wheel
Bar is unclamped rapidly, and saw blade reaches releasing orientation, and corresponding operating can be carried out to saw blade, and Figure 14~17 are fast under quick release state
Fast strainer schematic diagram.
Quick tensioning process：
When continuation operation handle ball 321 so that the two high face 35 of convex wheel assembly 31 and lower cam component 32 connects again
When touching, convex wheel assembly 31 is elevated again along the direction of pilot pin 33, now, due to not operating tensioning handwheel 21, that is, is tensioned hand
The relative position of wheel 21 and thread plate 233 keeps constant, when convex wheel assembly 31 is elevated again along the direction of pilot pin 33,
The elastic force of the elastomer 232 of tight component 2 keeps constant, tension assembly 2 will be driven to be promoted to initial tension state position rapidly, together
When saw blade be tensioned rapidly in initial tension state position, without adjust again tensioning handwheel 21, reach quick tensioning state, referring to
Figure 10~13 are the mechanism for quick tensioning schematic diagram under tensioning state.
Referring to Figure 18, present invention simultaneously discloses a kind of wood working band sawing machine, the wood working band sawing machine includes above-mentioned quick tensioning device
Structure 7, upper wheel 8, lower saw wheel 9, saw blade 10, workbench 16, motor and body 17.Wherein, upper wheel 8, lower saw wheel 9 are installed respectively
In the upper and lower part of body 17, mechanism for quick tensioning 7 is connected by upper whorl axial 51 with upper wheel 8, and saw blade 10 is arranged at upper wheel 8
On cylindrical between lower saw wheel 9, workbench 16 is fixed on body 17, and the lower saw wheel 9 of motor driving rotates.Wood working band sawing machine work
When making, drive lower saw wheel 9 to rotate by polywedge bet by motor pulley, rotatory force is transferred to upper wheel 8 by saw blade 10, when
When upper wheel 8, lower saw wheel 9,10 equal stable rotation of saw blade, saw blade 10 is cut to the timber on workbench 16.
Finally it should be noted that：Above example is merely to illustrate technical scheme, rather than is limited,
Although the present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part technical characteristic is equally replaced
Change.And these modifications or replacement, the essence of appropriate technical solution is departed from the model of various embodiments of the present invention technical scheme
Enclose.
Claims (10)
- A kind of 1. wood working band sawing machine mechanism for quick tensioning, it is characterised in that wood working band sawing machine mechanism for quick tensioning bag Include：Tensioning frame (1), the tensioning frame (1) and the body of the wood working band sawing machine are fixed；Tension assembly (2), the tension assembly (2) are arranged at the tensioning frame (1), and can be relative to the tensioning frame (1) Elevating movement；Cam pack (3), the cam pack (3) are connected with the tension assembly (2), so as to when the cam pack (3) quilt Lifting and the release tension assembly (2) during driving；Director element (4), the director element (4) are connected with the tension assembly (2), so as to same with the tension assembly (2) Step motion；The director element (4) while it is connected with the tensioning frame (1), is transported to be lifted relative to the tensioning frame (1) It is dynamic；Upper whorl axial component (5), the upper whorl axial component (5) is connected with the director element (4), so as to around the director element (4) axis oscillating；The upper whorl axial component (5) is connected with the wood working band sawing machine upper wheel, so as to the quilt of upper whorl axial component 5 During driving, the upper wheel is driven to be synchronized with the movement.
- 2. wood working band sawing machine mechanism for quick tensioning according to claim 1, it is characterised in that：The director element (4) It is connected with the tensioning side plate (13) of the tensioning frame (1) both sides, the tensioning side plate (13), which is provided with, guides the director element (4) The guide groove (133) moved up and down, two ends of the director element (4) are tensioned leading for side plate (13) positioned at two respectively To groove (133) place.
- 3. wood working band sawing machine mechanism for quick tensioning according to claim 1, it is characterised in that：The director element (4) It is connected with the upper whorl axial connecting plate (52) of the upper whorl axial component (5), the upper whorl axial connecting plate (52) can be around the director element (4) axis oscillating.
- 4. wood working band sawing machine mechanism for quick tensioning according to claim 3, it is characterised in that：The director element (4) It is connected with the tensioning bottom end assemblies (23) for being arranged at the tension assembly (2) bottom, the tensioning bottom end assemblies (23) are located at institute State the mounting bracket (231) that tensioning frame (1) is internal, and the tensioning bottom end assemblies (23) are moved provided with the drive director element (4).
- 5. wood working band sawing machine mechanism for quick tensioning according to claim 4, it is characterised in that：The mounting bracket (231) Using downward opening semi-surrounding structure, the mounting bracket (231) includes two installation side plates (2312) being arranged oppositely, installation Side plate (2312) is provided with side plate through-hole (2314), and two ends of the director element (4) are connected to two installation side plates (2312) side plate through-hole (2314).
- 6. wood working band sawing machine mechanism for quick tensioning according to claim 4, it is characterised in that：The tensioning bottom end assemblies (23) also include being arranged at the internal thread plate (233) of the mounting bracket (231), the thread plate (233) and the mounting bracket (231) elastomer (232) is set between, and the thread plate (233) moves up, and can compress the elastomer (232) and drive The mounting bracket (231) moves up；The mounting bracket (231) and the release of elastomer (232) stress, can drive the thread plate (233) fall after rise.
- 7. wood working band sawing machine mechanism for quick tensioning according to claim 6, it is characterised in that：The tension assembly (2) Also include tensioning transmission device (22), the tensioning transmission device (22) is through the cam pack (3), the tensioning frame (1) With the tensioning bottom end assemblies (23), the tensioning transmission device (22) is that screw thread is mutual with merging with the thread plate (233) Effect, the tensioning transmission device (22), which is provided with, carries out spacing limited step (223) to cam pack (3) ascending motion.
- 8. wood working band sawing machine mechanism for quick tensioning according to claim 1, it is characterised in that：The cam pack (3) Including convex wheel assembly (31) and lower cam component (32), the convex wheel assembly (31) and the lower cam component (32) are adopted With symmetrically arranged edge cam structure, the convex wheel assembly (31) is connected with the tensioning frame (1) by pilot pin (33), When the lower cam component (32) is driven, the convex wheel assembly (31) can be driven to be moved up and down along pilot pin (33).
- 9. wood working band sawing machine mechanism for quick tensioning according to claim 1, it is characterised in that：The upper whorl axial component (5) regulation and locking member (6) are also included, the regulation and locking member (6) include regulation handle (61) and wing nut (62), the regulation handle (61) coordinates with tensioning frame (1) screw thread, when the regulation handle (61) is driven, can drive institute The upper whorl axial connecting plate (52) for stating upper whorl axial component (5) is used for the tune around director element (4) axis oscillating, the nut (62) Handle (61) is saved to lock with the wood working band sawing machine body (17).
- 10. a kind of wood working band sawing machine, it is characterised in that containing the wood working band sawing machine described in claim 1~9 with quick tensioning device Structure, the mechanism for quick tensioning (7) are connected to the wood working band sawing machine by the upper whorl axial (51) of the upper whorl axial component (5) Upper wheel (8).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710896345.3A CN107520911A (en) | 2017-09-28 | 2017-09-28 | Wood working band sawing machine mechanism for quick tensioning and wood working band sawing machine |
| AU2018100357A AU2018100357A4 (en) | 2017-09-28 | 2018-03-23 | A Quick Tensioning Mechanism And A Woodworking Band Sawing Machine Using Thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710896345.3A CN107520911A (en) | 2017-09-28 | 2017-09-28 | Wood working band sawing machine mechanism for quick tensioning and wood working band sawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107520911A true CN107520911A (en) | 2017-12-29 |
Family
ID=60737509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710896345.3A Pending CN107520911A (en) | 2017-09-28 | 2017-09-28 | Wood working band sawing machine mechanism for quick tensioning and wood working band sawing machine |
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| Country | Link |
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| CN (1) | CN107520911A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108657738A (en) * | 2018-07-25 | 2018-10-16 | 宁夏国励汽车动力科技有限公司 | adjustable support frame |
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| FR2386397A1 (en) * | 1977-04-07 | 1978-11-03 | Scheppach Maschf J | Support for upper wheel of band saw - has fork with vertical and horizontal adjusting screws for aligning band correctly |
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