A kind of assembling equipment of walnut clamp
Technical field
The present invention relates to utcrackers to assemble field, in particular to a kind of assembling equipment of walnut clamp.
Background technique
Walnut, also known as English walnut, Qiang peach are juglandaceae plant.With almond, cashew nut, fibert and referred to as world-renowned " four is big
Dry fruit ".Walnut kernel nutrient rich in, every hectogram contain 15~20 grams of protein, and fat is more, and 10 grams of carbohydrate;
And contain the various trace elements such as calcium needed by human, phosphorus, iron and a variety of dimension lifes such as minerals and carrotene, riboflavin
Element.It is beneficial to human body.It is deep by one of favorite nut based food of common people.
The edible value of walnut is very high, but walnut is tasted very inconvenient, and walnut has hard shell, is generally eating
Walnut is all to be knocked open using blunt or opened with nutcracker clamp, as many needs of work of the development of society largely use brain,
Walnut becomes food in the indispensable snacks of cerebrum tonifying, and market increasingly increases severely to the demand liquid of walnut clamp, but market
A kind of upper no assembly equipment for walnut clamp.
Documents China Patent No.: Publication No. CN201736017U is found in similar field, it is a kind of horizontal double
Hydraulic scissors handle kludge, including workbench, wherein two groups of hydraulic oil have been mounted side by side in same direction on the workbench
Cylinder, equipped with push plate and square channled rail in front of every group of hydraulic cylinder, the beam hanger of described push plate one end and hydraulic cylinder is fixedly linked,
The push plate bottom and square channled rail are slidably connected, and the push plate edge is equipped with proximity overtravel-limit switch, the push plate other end
Front is equipped with die bottom plate;Floor push is installed, the floor push passes through hydraulic system and hydraulic below the workbench
Oil cylinder is connected, and solves the problems, such as handle assembling, but not can solve the packing problem of nutcracker pincers, and it is therefore necessary to design one
Money is directed to walnut clamp assembly equipment.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of assembling equipment of walnut clamp, improve
The packaging efficiency of walnut clamp.
To solve the above problems, the present invention the following technical schemes are provided:
A kind of assembling equipment of walnut clamp, includes cup dolly, further includes having the first loading assemblies, the second feeding group
Part, mounting assembly, discharge component, workbench, moving assembly, the first workpiece jig and second workpiece jig, the workbench are solid
Dingan County is mounted in cup dolly top and workbench is located at the middle of cup dolly, the first loading assemblies, mounting assembly, second
Loading assemblies and discharge component are arranged successively clockwise along cup dolly, and the first loading assemblies include the first caliper feeder
Tool arm, the second loading assemblies include the second caliper feeding mechanical arm, and mounting assembly includes installation mechanical arm, discharge component packet
Discharging mechanical arm is included, the first workpiece jig and second workpiece jig are arranged at workbench top, moving assembly setting
In workbench bottom end, the workbench includes that axis connects column, and the axis connects the top that column is located at workbench, the first workpiece jig and
Second workpiece jig is provided with hinge, the first workpiece jig and second workpiece jig connect by hinge with axis it is column articulated, it is described
It is also symmetrically arranged on workbench for cooperating the first workpiece jig and second workpiece jig to connect the first arc that column rotates around axis
Through-hole and the second arc-shaped through-hole.
Preferably, the first caliper feeding mechanical arm and the second caliper feeding mechanical arm include stepper motor, rotation
The top of cup dolly is arranged in turntable, the first electronic slide unit and the first gripper, turntable, and rotation is arranged in the bottom of turntable
One end of bar, swingle is fixedly connected with turntable, and the other end of swingle passes through cup dolly and is provided with driven wheel, is walked
It is located at the bottom of cup dolly into motor, the output end of stepper motor is provided with driving wheel, and driving wheel and driven wheel pass through belt
Transmission connection, the first electronic slide unit are vertically installed at the top of turntable, are additionally provided with connection on the sliding block of the first electronic slide unit
Bar, one end of the connecting rod are fixedly connected with the sliding block of the first electronic slide unit, and the other end of the first gripper and the connecting rod is solid
Fixed connection.
Preferably, first loading assemblies and the second loading assemblies include rotating conveying belt, the rotation conveying
It takes and is provided with several and holds plate for placing modules.
Preferably, the installation mechanical arm includes the second electronic slide unit, the electronic slide unit of third and screw means device, described
In second electronic slide unit horizontality mounting seat, on the sliding block of the electronic slide unit of the electronic slide unit of third vertically-mounted second, third
It is additionally provided with connecting rod on the sliding block of electronic slide unit, which connect with the sliding block of the electronic slide unit of third, screw rotation
Tight device is fixedly mounted on the other end of the connecting rod, and the mounting assembly further includes having screw feeding track and the vibration of screw feeding
Disk, screw feeding vibrating disk are fixedly mounted on cup dolly, feed end and the screw feeding vibrating disk of screw feeding track
The output end of discharge end connection, screw feeding track extends to workbench direction.
Preferably, the discharging mechanical arm includes the 4th electronic slide unit, the 5th electronic slide unit and the second gripper, described
4th electronic slide unit is vertically installed on pedestal, and the 5th electronic slide unit is horizontally arranged on the sliding block of the 4th electronic slide unit, and the 5th
Connecting rod is also set up on electronic slide unit, one end of the connecting rod is fixedly connected with the sliding block of the 5th electronic slide unit, the second gripper
It is fixedly connected with the other end of the connecting rod.
Preferably, identical, the first workpiece jig and second is arranged in the first workpiece jig and second workpiece jig structure
Workpiece jig includes support plate, rail rods and rotating down pressing cylinder, and the support plate is rectangular panel body structure, support plate water
Level state is set on workbench, and the top of support plate is additionally provided with the imitation-shaped groove for fixed caliper, and rotating down pressing cylinder is solid
Surely it is set to the side on support plate top, the output end of rotating down pressing cylinder is additionally provided with the pressing plate for fixed caliper, track
The top of bar is fixedly connected with the bottom end of support plate and rail rods and rotating down pressing cylinder are ipsilateral, the rail on the first workpiece jig
The bottom end of road bar is inserted into the first arc-shaped through-hole, and the bottom end of the rail rods on second workpiece jig is inserted into the second arc-shaped through-hole,
The bottom end of all rail rods is provided with pulley, and pulley connects with rail rods axis.
Preferably, be additionally provided with the first arc track and the second arc track on the workbench, the first arc track and
Second arc track is arranged at the bottom end of workbench, and the first arc track is located at the underface of the first arc-shaped through-hole, the
Two arc tracks are located at the underface of the second arc-shaped through-hole, and the first arc track and the second arc track include first sliding
Road, the second slideway, first through hole and the second through-hole, the first through hole and the second through-hole are located at the first arc track and
One end of two arc tracks, the first slideway and the second slideway are located in the side of the first arc track and the second arc track
On wall.
Preferably, the moving assembly includes the first traction component and the second traction component, the first traction component and
Two traction component structure settings are identical and include motor mounting box, rotary shaft and rotating electric machine, the motor mounting box
It being fixedly connected with the bottom end of workbench, rotating electric machine is arranged in motor mounting box, and axis, which is additionally provided with, on motor mounting box connects block,
One end of rotary shaft connects block axis with axis and connects, and the other end and the table spindle of rotary shaft connect, and the output end of rotating electric machine is provided with master
Driving wheel is provided with driven wheel, driving wheel and driven wheel in rotary shaft by belt transmission connection, is additionally provided with rope closing in rotary shaft
Wheel, rope closing wheel are located at the top of driven wheel.
Preferably, first traction component and the second traction component include the first horn mouth, the second horn mouth,
One traction rope and the second traction rope, one end of the first traction rope on the first traction component and the rope closing wheel on the first traction component
It connects, the other end of the first traction rope on the first traction component passes through the first horn mouth and the first of the first arc track and leads to
Hole, and the other end of the first traction rope on the first traction component is connect with the rail rods on the first workpiece jig, and first leads
The one end for drawing the second traction rope on component is connect with the rope closing wheel on the first traction component, and second on the first traction component is led
The other end of messenger passes through the first through hole of the first horn mouth and the second arc track, and second on the first traction component is led
The other end of messenger is connect with the rail rods on second workpiece jig, one end of the first traction rope on the second traction component and the
Rope closing wheel connection on two traction components, the other end of the first traction rope on the second traction component pass through the second horn mouth and the
Second through-hole of one arc track, and on the other end of the first traction rope on the second traction component and the first workpiece jig
Rail rods connect, and one end of the second traction rope on the second traction component is connect with the rope closing wheel on the second traction component, and second
The other end of the second traction rope on traction component passes through the second through-hole of the second horn mouth and the second arc track, and second
The other end of the second traction rope on traction component is connect with the rail rods on second workpiece jig.
Preferably, the discharge chute for discharging is additionally provided on the pedestal, discharge chute is fixedly mounted on pedestal simultaneously
And discharge chute and discharge component are ipsilateral.
The utility model has the advantages that a kind of assembling equipment of walnut clamp of the invention, passes through the first loading assemblies and the second feeding group
The rotating conveying belt of part is mobile by the first caliper and the second caliper, is passing through the first feeding mechanical arm and the second feeding mechanical arm
By on the first workpiece jig and second workpiece jig on the first caliper and the second caliper crawl work platform for placing, the first workpiece is controlled
Rotating down pressing cylinder on tool and second workpiece jig fixes the first caliper and the second caliper, and the second traction rope of moving assembly is logical
Cross the drive of rotating electric machine by the first workpiece jig and second workpiece jig the first clamp and the second clamp it is hinged salty
It closes, screw means device alignment screw feeding track is taken out a screw and is and then moved to the by the installation mechanical arm of mounting assembly
The hinged mouth of one clamp and the second clamp, screw is screwable into, and last discharging mechanical arm moves the walnut clamp being completed
To discharge chute, solve the problems, such as that walnut clamp pincers can not volume production.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention;
Fig. 2 is top view of the invention;
Fig. 3 is partial component schematic perspective view of the present invention;
Fig. 4 is the schematic perspective view of the first caliper feeding mechanical arm of the invention;
Fig. 5 is the schematic perspective view of discharging mechanical arm of the present invention;
Fig. 6 is the schematic perspective view of workbench of the present invention;
Fig. 7 is the schematic perspective view of mounting assembly of the present invention;
Fig. 8 is the partial component schematic perspective view of workbench of the present invention;
Fig. 9 is the schematic perspective view of moving assembly of the present invention;
Figure 10 is workbench partial component schematic perspective view of the present invention;
Description of symbols: the first loading assemblies 1, the second loading assemblies 2, mounting assembly 3, discharge component 4, workbench 5,
Moving assembly 6, the first workpiece jig 7, second workpiece jig 8, cup dolly 9, the first caliper feeding mechanical arm 1a, the second caliper
Feeding mechanical arm 2a, rotating conveying belt 1b hold plate 1b1, stepper motor 1a1, turntable 1a2, the first electronic slide unit 1a3, the
One gripper 1a4, screw feeding track 3a, screw feeding vibrating disk 3b install mechanical arm 3c, the second electronic slide unit 3c1, third
Electronic slide unit 3c2, screw means device 3c3, discharging mechanical arm 4a, the 4th electronic slide unit 4a1, the 5th electronic slide unit 4a2, the second machine
Machinery claw 4a3, the first arc-shaped through-hole 5a, the second arc-shaped through-hole 5b, the first arc track 5c, the second arc track 5d, the first slideway
5c1, the second slideway 5c2, first through hole 5c3, the second through-hole 5c4, the first traction component 6a, the second traction component 6b, motor peace
Mounted box 6a1, rotary shaft 6a2, rotating electric machine 6a3, rope closing wheel 6a4, the first horn mouth 6a5, the second horn mouth 6a6, first draws
Restrict 6a7, the second traction rope 6a8, support plate 7a, rail rods 7b, pulley 7c, rotating down pressing cylinder 7d, discharge chute 9a.
Specific embodiment
With reference to the accompanying drawings of the specification and embodiment, specific embodiments of the present invention are described in further detail:
Include cup dolly 9 referring to figs. 1 to a kind of assembling equipment of walnut clamp shown in Fig. 10, further includes having
One loading assemblies 1, the second loading assemblies 2, mounting assembly 3, discharge component 4, workbench 5, moving assembly 6, the first workpiece jig 7
With second workpiece jig 8, the workbench 5 is fixedly mounted on 9 top of cup dolly and workbench 5 is located at cup dolly 9
Middle, the first loading assemblies 1, mounting assembly 3, the second loading assemblies 2 and discharge component 4 along cup dolly 9 clockwise according to
Secondary arrangement, the first loading assemblies 1 include the first caliper feeding mechanical arm 1a, and the second loading assemblies 2 include on the second caliper
Expect mechanical arm 2a, mounting assembly 3 includes installation mechanical arm 3c, and discharge component 4 includes discharging mechanical arm 4a, first work
Part jig 7 and second workpiece jig 8 are arranged at 5 top of workbench, and moving assembly 6 is arranged in 5 bottom end of workbench, the work
Platform 5 includes that axis connects column, and the axis connects the top that column is located at workbench 5, and the first workpiece jig 7 and second workpiece jig 8 are all provided with
Be equipped with hinge, the first workpiece jig 7 and second workpiece jig 8 connect by hinge with axis it is column articulated, it is also symmetrical on the workbench 5
It is provided with for cooperating the first workpiece jig 7 and second workpiece jig 8 to meet the first arc-shaped through-hole 5a and second that column rotates around axis
Arc-shaped through-hole 5b.
It referring to Fig.1 include step with the first caliper feeding mechanical arm 1a described in Fig. 4 and the second caliper feeding mechanical arm 2a
Into motor 1a1, turntable 1a2, the first electronic slide unit 1a3 and the first gripper 1a4, turntable 1a2, cup dolly 9 is set
Swingle is arranged in the bottom of top, turntable 1a2, and one end of swingle is fixedly connected with turntable 1a2, the other end of swingle
Across cup dolly 9 and it is provided with driven wheel, stepper motor 1a1 is located at the bottom of cup dolly 9, and stepper motor 1a1's is defeated
Outlet is provided with driving wheel, driving wheel and driven wheel and is sequentially connected by belt, and the first electronic slide unit 1a3 is vertically installed at rotation
The top of platform 1a2 is additionally provided with connecting rod on the sliding block of the first electronic slide unit 1a3, one end of the connecting rod and the first electric sliding
The sliding block of platform 1a3 is fixedly connected, and the first gripper 1a4 is fixedly connected with the other end of the connecting rod.
First caliper feeding mechanical arm 1a and the second caliper feeding mechanical arm 2a structure setting it is identical be by stepping electricity
Machine 1a1 drives turntable 1a2, and turntable 1a2 rotates 180 ° for the first caliper or second on rotating conveying belt 1b every time
Caliper crawl, turntable 1a2 rotates 180 ° of first workpiece jigs 7 of alignment or second workpiece jig 8 again after the completion of crawl, will
First caliper or the second caliper are put down, and the sliding block of the first electronic slide unit 1a3 drives first during turntable 1a2 rotation
Gripper 1a4 is moved up and down, and solves the height error of rotating conveying belt 1b and workbench 5.
The first loading assemblies 1 and the second loading assemblies 2 referring to described in Fig. 2 include rotating conveying belt 1b, the rotation
It is provided with several on conveyer belt 1b and holds plate 1b1 for placing modules.
On rotating conveying belt 1b hold plate 1b1 set block gauge finder be according to the first caliper and second clamp design
, the first caliper or the second caliper fixation will not be generated movement by Kong Yi.
The installation mechanical arm 3c referring to described in Fig. 7 includes the second electronic slide unit 3c1, the electronic slide unit 3c2 of third and screw rotation
Tight device 3c3, in the second electronic slide unit 3c1 horizontality mounting seat, the electronic slide unit 3c2 vertically-mounted second of third is electronic
On the sliding block of slide unit 3c1, it is additionally provided with connecting rod on the sliding block of the electronic slide unit 3c2 of third, the connecting rod first end and third electricity
The sliding block connection of dynamic slide unit 3c2, screw means device 3c3 are fixedly mounted on the other end of the connecting rod, and the mounting assembly 3 is also wrapped
Screw feeding track 3a and screw feeding vibrating disk 3b are included, screw feeding vibrating disk 3b is fixedly mounted on cup dolly 9, spiral shell
The feed end of silk feeding track 3a is connect with the discharge end of screw feeding vibrating disk 3b, and the output end of screw feeding track 3a is to work
Make the extension of 5 direction of platform.
Second electronic slide unit 3c1 is horizontally arranged on pedestal and extends to 5 direction of workbench, screw feeding track 3a's
Output end is arranged above workbench 5, on the sliding block of the electronic slide unit 3c1 of the electronic slide unit 3c2 vertically-mounted second of third, passes through second
Electronic slide unit 3c1 will electronic slide unit be to the movement of 5 direction of workbench on the ground, in mobile way on the electronic slide unit 3c2 sliding block of third
Screw driver take out a screw in the output end of bolt feeding track, screw driver output end has magnet component can be with
Screw is sucked, screw is directed at the hinged place of the first caliper and the second caliper and screws into screw.
The discharging mechanical arm 4a referring to described in Fig. 5 includes the 4th electronic slide unit 4a1, the 5th electronic slide unit 4a2 and the second machine
Machinery claw 4a3, the 4th electronic slide unit 4a1 are vertically installed on pedestal, and it is electronic that the 5th electronic slide unit 4a2 is horizontally arranged at the 4th
On the sliding block of slide unit 4a1, connecting rod is also set up on the 5th electronic slide unit 4a2, one end of the connecting rod and the 5th electronic slide unit 4a2
Sliding block be fixedly connected, the second gripper 4a3 is fixedly connected with the other end of the connecting rod.
The first workpiece jig 7 referring to described in Fig. 6, Fig. 8 or Figure 10 is identical with 8 structure setting of second workpiece jig, and first
Workpiece jig 7 and second workpiece jig 8 include support plate 7a, rail rods 7b and rotating down pressing cylinder 7d, the support plate
7a is rectangular panel body structure, and support plate 7a horizontality is set on workbench 5, and the top of support plate 7a is additionally provided with for solid
The imitation-shaped groove of fixed clamp, rotating down pressing cylinder 7d are fixedly installed on the side on the top support plate 7a, and rotating down pressing cylinder 7d's is defeated
Outlet is additionally provided with the pressing plate for fixed caliper, and the top of rail rods 7b is fixedly connected with the bottom end of support plate 7a and track
Bar 7b and rotating down pressing cylinder 7d are ipsilateral, and the bottom end of the rail rods 7b on the first workpiece jig 7 is inserted into the first arc-shaped through-hole 5a,
The bottom end of rail rods 7b on second workpiece jig 8 is inserted into the second arc-shaped through-hole 5b, and the bottom end of all rail rods 7b is equal
It is provided with pulley 7c, pulley 7c connects with rail rods 7b axis.
Rail rods 7b is inserted into the first arc-shaped through-hole 5a or the second arc-shaped through-hole 5b, is the row in order to limit support plate 7a
Dynamic rail mark, so that circumference of the movement track of support plate 7a along the first arc-shaped through-hole 5a or the second arc-shaped through-hole 5b.
The first arc track 5c and the second arc are additionally provided on the workbench 5 referring to described in Fig. 6, Fig. 8, Fig. 9 or Figure 10
Track 5d, the first arc track 5c and the second arc track 5d are arranged at the bottom end of workbench 5, and the first arc track 5c
Positioned at the underface of the first arc-shaped through-hole 5a, the second arc track 5d is located at the underface of the second arc-shaped through-hole 5b, the first arc
Track 5c and the second arc track 5d includes the first slideway 5c1, the second slideway 5c2, first through hole 5c3 and the second through-hole
5c4, the first through hole 5c3 and the second through-hole 5c4 are located at one end of the first arc track 5c and the second arc track 5d,
First slideway 5c1 and the second slideway 5c2 are located on the side inner wall of the first arc track 5c and the second arc track 5d.
The first slideway 5c1 and the second slideway 5c2 mono- in first arc track 5c and the second arc track 5d are in order to cooperate
Pulley 7c makes pulley 7c reduce resistance in moving process.
The moving assembly 6 referring to described in Fig. 8 and Fig. 9 includes the first traction component 6a and the second traction component 6b, and first leads
Draw component 6a and the second traction component 6b structure setting is identical and include motor mounting box 6a1, rotary shaft 6a2 and rotation
Motor 6a3, the motor mounting box 6a1 are fixedly connected with the bottom end of workbench 5, and rotating electric machine 6a3 is arranged in motor mounting box
In 6a1, it is additionally provided with axis on motor mounting box 6a1 and connects block, one end and the axis of rotary shaft 6a2 connects block axis and connect, and rotary shaft 6a2's is another
One end connects with 5 axis of workbench, and the output end of rotating electric machine 6a3 is provided with driving wheel, and driven wheel is provided on rotary shaft 6a2, main
Driving wheel and driven wheel are sequentially connected by belt, are additionally provided with rope closing wheel 6a4 on rotary shaft 6a2, rope closing wheel 6a4 is located at driven wheel
Top.
The first traction component 6a and the second traction component 6b referring to described in Fig. 8 and Fig. 9 include the first horn mouth 6a5,
Second horn mouth 6a6, the first traction rope 6a7 and the first traction rope 6a7's on the second traction rope 6a8, the first traction component 6a
One end is connect with the rope closing wheel 6a4 on the first traction component 6a, the other end of the first traction rope 6a7 on the first traction component 6a
The first traction across the first through hole 5c3 of the first horn mouth 6a5 and the first arc track 5c, and on the first traction component 6a
The other end of rope 6a7 is connect with the rail rods 7b on the first workpiece jig 7, the second traction rope 6a8 on the first traction component 6a
One end connect with the rope closing wheel 6a4 on the first traction component 6a, the second traction rope 6a8's on the first traction component 6a is another
The first through hole 5c3 across the first horn mouth 6a5 and the second arc track 5d is held, and second on the first traction component 6a is led
The other end of messenger 6a8 is connect with the rail rods 7b on second workpiece jig 8, the first traction rope on the second traction component 6b
One end of 6a7 is connect with the rope closing wheel 6a4 on the second traction component 6b, the first traction rope 6a7's on the second traction component 6b
The other end passes through the second through-hole 5c4 of the second horn mouth 6a6 and the first arc track 5c, and the on the second traction component 6b
The other end of one traction rope 6a7 is connect with the rail rods 7b on the first workpiece jig 7, the second traction on the second traction component 6b
One end of rope 6a8 is connect with the rope closing wheel 6a4 on the second traction component 6b, the second traction rope 6a8 on the second traction component 6b
The other end pass through the second through-hole 5c4 of the second horn mouth 6a6 and the second arc track 5d, and on the second traction component 6b
The other end of second traction rope 6a8 is connect with the rail rods 7b on second workpiece jig 8.
Two traction ropes of first traction component 6a pass through the first horn mouth 6a5 to the first arc track 5c and the second arc
Two first through hole 5c3 of track 5d extend, and two traction ropes are respectively connected to a rail rods 7b, the second traction component 6b's
Two traction ropes pass through two second through-hole 5c4s of the second horn mouth 6a6 to the first arc track 5c and the second arc track 5d
Extend, two traction ropes are respectively connected to a rail rods 7b, in the rotating electric machine 6a3 band of feeding stage the first traction component 6a
Dynamic rope closing wheel 6a4 separates two workpiece jigs, and the rotating electric machine 6a3 of the second traction component 6b drives rope closing wheel when assembling stage
The hinged place of first caliper and the second caliper is overlapped by 6a4.
The discharge chute 9a for discharging is additionally provided on the pedestal referring to described in Fig. 3 and Fig. 5, discharge chute 9a is fixedly mounted
On pedestal and discharge chute 9a and discharge component 4 are ipsilateral.
Working principle: by the rotating conveying belt 1b of the first loading assemblies 1 and the second loading assemblies 2 by the first caliper and
Second caliper is mobile, is being placed the first caliper and the crawl of the second caliper by the first feeding mechanical arm and the second feeding mechanical arm
Rotation on the first workpiece jig 7 and second workpiece jig 8 on workbench 5, on the first workpiece jig 7 and second workpiece jig 8
Turn lower air cylinder 7d and fix the first caliper and the second caliper, the second traction rope 6a8 of moving assembly 6 passes through rotating electric machine 6a3's
It drives and is overlapped the hinged mouth of the first clamp and the second clamp on the first workpiece jig 7 and second workpiece jig 8, mounting assembly
Screw means device 3c3 alignment screw feeding track 3a is taken out a screw and is and then moved to first by 3 installation mechanical arm 3c
The hinged mouth of clamp and the second clamp, screw is screwable into, and last discharging mechanical arm 4a moves the walnut clamp being completed
To discharge chute 9a.
The above described is only a preferred embodiment of the present invention, not making any limit to technical scope of the invention
System, therefore any subtle modifications, equivalent variations and modifications to the above embodiments according to the technical essence of the invention,
In the range of still falling within technical solution of the present invention.