The content of the invention
In view of the shortcomings of the prior art, the technical problem to be solved in the present invention is to provide a kind of lath cutter, lower knife body
Good operation stability.
To achieve these goals, the present invention is to realize by the following technical solutions：A kind of lath cutter, including machine
Frame, upper knife body, lower knife body and elevating mechanism, the upper knife body are fixedly installed in frame, and the lower knife body is located under upper knife body
Fang Bingke is moved up and down along frame, and the elevating mechanism drives lower knife body relative to upper knife body movement to shear sheet material, also including use
In the balance leverage of balance lower knife body, the balance leverage includes left and right crank and left and right connecting rod, and the left and right crank is symmetrical
Located at the both sides of lower knife body longitudinal center, the left and right connecting rod is symmetrically set in the both sides of longitudinal center, the left and right crank
Lower end is hinged with frame, and the lower end of the upper end of the left and right crank respectively with left and right connecting rod is hinged, the left and right connecting rod
Upper end is hinged with lower knife body.
Further, the elevating mechanism includes left and right screw rod, pivoted housing, lifting seat and rotating mechanism, and the lifting seat can
Being arranged in frame for lifting, is socketed on the jointed shaft of left crank and left connecting rod, the right screw rod on the left of the left screw rod
Right side be socketed on right crank and the jointed shaft of right connecting rod, the right side and left side of the left and right screw rod are inserted in pivoted housing simultaneously respectively
Coordinate with pivoted housing screw thread, the left and right screw flight is oppositely oriented, the rotating mechanism is located on lifting seat and drives pivoted housing
Further, the frame is provided with the spring of support lifting seat.
Beneficial effects of the present invention：
1st, lath cutter of the invention, balance, the stability of dynamic model are strengthened by setting balance leverage, and structure and control are more
It is easy；
2nd, lath cutter of the invention, elevating mechanism drives lower knife body to lift by moving horizontally, and lower knife body is lifted more
Steadily, equipment overall structure is compacter, occupy little space.
For technological means, creation characteristic, reached purpose and effect for making present invention realization are easy to understand, with reference to
Specific embodiment, is expanded on further the present invention.
Figure is referred to, the present invention provides a kind of technical scheme：A kind of lath cutter, including frame 10, upper knife body 20, lower knife body
30 and elevating mechanism 40, upper knife body 20 is fixedly installed in frame 10, and frame 10 includes left and right column and the left and right column of connection
Bottom girder 101, lower knife body 30 is located at the lower section of upper knife body 20 and can be moved up and down along frame 10, the driving lower knife body 30 of elevating mechanism 40
Move to shear sheet material relative to upper knife body 20.Elevating mechanism 40 can be the mechanisms such as hydraulic cylinder or crank block.
Balance leverage 50 is provided between the bottom girder 101 of lower knife body 30 and frame 10, balance leverage 50 includes left and right crank
501st, 502 and left and right connecting rod 511,512, left and right crank 501,502 is symmetrically set in the both sides of the longitudinal center of lower knife body 30, left,
Right connecting rod 511,512 is also symmetrically set in the both sides of longitudinal center, and the lower end of left and right crank 501,502 is hinged with frame 10,
Lower end of the upper end of left and right crank 501,502 respectively with left and right connecting rod 511,512 is hinged, the upper end of left and right connecting rod 511,512
It is hinged with lower knife body 30.Left and right connecting rod 511,512 is connected to the both sides at the center of lower knife body 30, when lower knife body 30 is moved up and down,
Left and right crank 501,502 swings around it with the jointed shaft 523,524 of bottom girder 101, and left and right connecting rod 511,512 can make lower knife body 30
Both sides are supported makes it keep balance, stationarity when enhancing lower knife body 30 is moved up and down.
Elevating mechanism 40 includes left and right screw rod 401,402, pivoted housing 403, lifting seat 404 and rotating mechanism, lifting seat 404
It is liftable to be arranged on the bottom girder 101 of frame 10, specifically, be provided with chute on bottom girder 101, the bottom of lifting seat 404 and cunning
The vertically slidable cooperation of groove, the left side of left screw rod 401 is socketed on the jointed shaft 521 of left crank 501 and left connecting rod 511, right screw rod
402 right side is socketed on the jointed shaft 522 of right crank 502 and right connecting rod 512, the right side and left side of left and right screw rod 401,402
Coordinate in insertion pivoted housing 403 and with the screw thread of pivoted housing 403 respectively, the thread rotary orientation of left and right screw rod 401,402 is conversely, rotating mechanism
On lifting seat 404 and pivoted housing 403 is driven to rotate.Rotating mechanism such as motor etc. drives pivoted housing 403 by gear or belt etc.
Rotate, pivoted housing 403 is rotated will drive left and right screw rod 401 simultaneously towards or away from movement, and left and right screw rod is towards or away from shifting
While dynamic, left and right crank 501,502 will be driven towards or away from swing by jointed shaft 521,522, so as to realize lower knife body 30
Lifting, left and right screw rod 401,402 closer or far from while, due to jointed shaft 521, the change of 522 positions, left and right screw rod
401 and pivoted housing 403 also will lifting, the lifting of left and right screw rod 401 and pivoted housing 403 is realized by lifting seat 404.Elevating mechanism
40 integral levels are set, and move horizontally to realize the lifting of lower knife body 30 by left and right screw rod, and equipment overall structure is compact, left,
The horizontal applied force of right screw rod is acted on lower knife body by left and right connecting rod, and lower knife body lifting is more steady.
The bottom girder 101 of frame 10 is provided with the spring 410 of support lifting seat 404, by spring 410 come buffer lift seat
General principle of the invention and principal character and advantages of the present invention has been shown and described above, for this area skill
For art personnel, it is clear that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing substantially from it is of the invention spirit or
In the case of essential characteristic, the present invention can be in other specific forms realized.Therefore, no matter from the point of view of which point, all should be by
Embodiment regards exemplary as, and is nonrestrictive, and the scope of the present invention is by appended claims rather than above stating
Bright restriction, it is intended that all changes fallen in the implication and scope of the equivalency of claim are included in the present invention
It is interior.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.