A kind of template movement device of template machine
Technical field
The utility model belongs to sewing machine technique field, is related to a kind of template movement device of template machine.
Background technology
Template machine is a kind of full automatic sewing device, it is necessary to be outputed the need in advance in template by garment dimension various
Groove, by XY to drive mechanism band moving platen along fluting cabling so that sewing is more accurate quick.
Existing template machine, such as Chinese patent literature data disclose a kind of template-driven machine of clothes template sewing machine
Structure [application number:201610185128.9;Application publication number:CN105734853A], it includes the workbench of template sewing machine,
Transmission base is set below workbench, and transmission base coordinates with Y-direction drive mechanism, X is fixed in transmission base to motor,
Guiding clamping plate is provided with above workbench, the bottom for being oriented to clamping plate is fixed with timing belt, timing belt is by sliding tooth and X to driving
Motor output end is connected, and is oriented on clamping plate and is provided with upper bracket and presser device, and folder is provided between upper bracket and guiding clamping plate
Panel assembly, sets X to guiding mechanism, presser device is connected with transmission base between presser device and guiding clamping plate.
The template-driven mechanism of this kind of structure, is applied certain pressure to briquetting and guide wheel by spring, is filled using pressing plate
Put by guide wheel to being oriented to the pressure that clamping plate keeps certain, be pressed in guide wheel by spring and be oriented on the guide rail of clamping plate.This kind is tied
, due to the bad control of the elastic force of spring, there is the problem of spring force is not enough, guide wheel can not be good in the template-driven mechanism of structure
Compress and be oriented to clamping plate, be oriented to the problem of clamping plate has mobile unstable, this results in the movement for being fixed on the template being oriented on clamping plate
Stability is poor, so that the sewing precision of template sewing machine is reduced, and because spring is in pressing plate seat, the elastic force of spring
Regulation inconvenience;And the template-driven mechanism of this kind of structure, it is fixedly connected with by the cylinder body and upper bracket of clamping cylinder, clamping cylinder
Piston rod stretch out by template be pressed in guiding clamping plate on, be only from the top of template downwardly against template, thrust is poor, mould
The firmness that plate is fixed is relatively low, and template has the problem of loosening, offset, and form stable is poor, so as to reduce template sewing machine
Sewing precision.
The content of the invention
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, it is proposed that a kind of template of template machine
Mobile device, the technical problem of solution is how to improve the moving stability of template.
The purpose of this utility model can be realized by following technical proposal:A kind of template movement device of template machine, bag
Include motor, be oriented to clamping plate, material feeding seat and guide wheel, the material feeding seat is connected in the top for being oriented to clamping plate, it is characterised in that also
Including the first compression cylinder, the second compression cylinder, the 3rd compression cylinder, clamping sleeve and hook, transmission is provided with the material feeding seat
Mechanism, the piston rod of first compression cylinder is connected by transmission mechanism with guide wheel, passes through the first compression cylinder piston rod
Flexible that guide wheel can be made away from or close to be oriented to clamping plate, when guide wheel, which is compressed, is oriented to clamping plate, the motor passes through gear train
It can drive and be oriented to clamping plate movement, second compression cylinder and the 3rd compression cylinder are connected on guiding clamping plate, described to compress
Set is connected in the end of the second compression cylinder piston rod, and one end of the hook is hinged with being oriented to clamping plate, middle to be pressed with the 3rd
The end of tight cylinder piston rod is hinged, and the other end is compression end.
Extension and contraction control guide wheel by the first compression cylinder piston rod eliminates guide wheel with leading with being oriented to the distance between clamping plate
To the gap between clamping plate, compress guide wheel and be oriented to clamping plate, motor is oriented to clamping plate by gear train driving and moved, guide clip
Plate movement is stable, so that the template movement stabilization being oriented on clamping plate is fixed on, so as to improve sewing quality;And first compress
When cylinder piston rod is retracted, guide wheel no longer pushes down guiding clamping plate, and being oriented to clamping plate can also change, and changes convenient.3rd compresses gas
The piston rod of cylinder is stretched out, and hook is rotated around pin joint, and template is pressed on guiding clamping plate from horizontal direction by hook, the
The piston rod of two compression cylinders stretches, and pushing down template from the top down by clamping sleeve or tensing template from the bottom up makes template pressure
It is tight to be oriented on clamping plate, template is compressed with two different directions of horizontal direction from vertical direction, makes the firm of template fixation
Degree is high, and the stability of template movement is good, so as to improve sewing quality.
In a kind of template movement device of above-mentioned template machine, the guiding clamping plate includes bottom plate and installing plate, described
Bottom plate and installing plate are integral structures, and the installing plate is located at the crown center of bottom plate, and bottom plate and installing plate are perpendicular,
The bottom of the bottom plate is fixed with rack, and the top of the bottom plate has the guide rail of tread plate and cross section semicircular in shape, described
Tread plate and guide rail are located at the both sides of installing plate, and the guide rail is located at the surface of rack.Bottom plate has the side of tread plate
For clamping template, the side with guide rail, which is used to compress, is oriented to clamping plate, and guide rail is located at the surface of rack, compresses guide wheel and leads
It is good to the effect of clamping plate, the stability for being oriented to clamping plate is improved, so as to improve the stability for being fixed on the template being oriented on clamping plate.
In a kind of template movement device of above-mentioned template machine, the end of the 3rd compression cylinder piston rod is connected
There is joint, the bottom of the joint has embedded groove, and one end and the installing plate of the hook are hinged, centre is located in embedded groove
And be hinged with joint, the compression end is fixed with the pressure strip in strip towards the side of installing plate.3rd compression cylinder
Piston rod stretch out, hook around the pin joint and hook and joint of hook and installing plate pin joint rotate, make pressure strip from
Horizontal direction is compressed on a mounting board against and by template, now, pressure strip and installing plate just to setting, the 3rd compression cylinder
Piston rod is retracted, and hook unclamps the compression to template, facilitates template to take out, two cell walls of embedded groove play spacing work to hook
With enabling hook accurately to compress template, improve the moving stability of template.
In a kind of template movement device of above-mentioned template machine, locating dowel, the locating dowel are fixed with the bottom plate
Stagger setting with clamping sleeve, the locating dowel is located at the side of clamping sleeve.There is corresponding breach in template, it is fixed during fixed form
Position post is embedded into the breach of template, and locating dowel plays a part of locating template.
In a kind of template movement device of above-mentioned template machine, locating dowel, the clamping sleeve are fixed with the bottom plate
In have through hole, when clamping sleeve template is pressed on guiding clamping plate on when, the locating dowel is worn in through-holes.There is phase in template
The breach answered, during fixed form, locating dowel is embedded into the breach of template, and locating dowel plays a part of locating template, Er Qieding
Position post is embedded into clamping sleeve, make clamping sleeve will not double swerve, improve the stability of clamping sleeve, clamping sleeve can press preferably
Tight template, improves the firmness that template is fixed, and the stability of template movement is good, so as to improve sewing quality.
In a kind of template movement device of above-mentioned template machine, the bottom of the clamping sleeve has several anti-skidding convex
Block.The setting of non-slip bumps improves the frictional force between clamping sleeve and template, so as to improve the firmness of template fixation, template
Mobile stability is good, so as to improve sewing quality.
In a kind of template movement device of above-mentioned template machine, the transmission mechanism include connecting rod, the first wobble crank,
First connecting shaft, the first linkage piece, the first wheel shaft and fix bar, one end and the material feeding seat of the fix bar are fixedly connected with, and the other end is worn
The middle of connecting rod is located at, the connecting rod can be rotated around fix bar, one end of the connecting rod and the piston rod of the first compression cylinder
It is hinged, the other end is hinged with the first wobble crank, one end of first wobble crank and the first connecting shaft is fixedly connected with, first
The other end of connecting shaft is fixedly connected with through material feeding seat and one end of the first linkage piece, the other end of the first linkage piece and the first wheel shaft
One end is fixedly connected with, and the first round outer shaft sleeve has the guide wheel set and guide wheel can rotate around the first wheel shaft, and described first compresses gas
Cylinder can drive the first wobble crank, the first connecting shaft and the first linkage piece to rotate by connecting rod.The piston rod of first compression cylinder is stretched
Go out, connecting rod is rotated around fix bar, one end of connecting rod rises, the other end declines, thus drive the first wobble crank, the first connecting shaft and
First linkage piece turns clockwise, and declines guide wheel and presses close to and compress guide rail;Otherwise the piston rod of the first compression cylinder is retracted, even
Bar rotates around fix bar, and one end of connecting rod declines, and the other end rises, so as to drive the first wobble crank, the first connecting shaft and first
Linkage piece rotate counterclockwise, makes guide wheel rise away from guide rail, and the flexible of the first compression cylinder piston rod is swung by connecting rod, first
Crank, the first connecting shaft, the first linkage piece and the first wheel shaft make guide wheel compress guiding clamping plate, and compression effect is good, effectively eliminates and leads
Wheel and the gap being oriented between clamping plate, make the movement of guiding clamping plate stable, so that template movement is stable.
In a kind of template movement device of above-mentioned template machine, the transmission mechanism also includes the second wobble crank, the
One end that two connecting shafts, the second linkage piece and the second wheel shaft, the connecting rod and the first compression cylinder piston rod are hinged is also with second
Wobble crank is hinged, and one end of second wobble crank and the second connecting shaft is fixedly connected with, and the other end of the second connecting shaft, which is passed through, to be sent
Material seat and one end of the second linkage piece are fixedly connected with, and one end of the other end of the second linkage piece and the second wheel shaft is fixedly connected with, and described the
Great wheel arbor overcoat has the guide wheel and guide wheel can rotate around the second wheel shaft, and first compression cylinder can drive second by connecting rod
Wobble crank, the second connecting shaft and the second linkage piece are rotated.The piston rod of first compression cylinder stretches out, and connecting rod rotates around fix bar,
One end of connecting rod rises, so as to drive the second wobble crank, the second connecting shaft and the second linkage piece to turn clockwise, declines guide wheel
Press close to guide rail, on the contrary the piston rod of the first compression cylinder is retracted, and connecting rod rotates around fix bar, and one end of connecting rod declines, so that band
Dynamic second wobble crank, the second connecting shaft and the second linkage piece rotate counterclockwise, make guide wheel rise away from guide rail, the first compression cylinder
The flexible of piston rod makes guide wheel compress guiding by connecting rod, the second wobble crank, the second connecting shaft, the second linkage piece and the second wheel shaft
Clamping plate, compression effect is good, effectively eliminates guide wheel and the gap being oriented between clamping plate, makes the movement of guiding clamping plate stable, so that
Template movement is stable.And the setting of two guide wheels, make the effect that guide wheel compresses guiding clamping plate more preferably, be oriented to clamping plate movement steady
It is fixed, so that template movement is stable.
In a kind of template movement device of above-mentioned template machine, the two ends of the connecting rod are respectively provided with bar hole, described
One wobble crank and the second wobble crank are hinged by pin with connecting rod, and the pin passes through bar hole, and the pin
It can be slided along bar hole.This kind of structure, makes the first wobble crank, the first connecting shaft, the first linkage piece, the second wobble crank, second
Connecting shaft and the second linkage piece rotate smooth.
In a kind of template movement device of above-mentioned template machine, between first wheel shaft and the second wheel shaft and material feeding seat
It is equipped with a pair of bearings.The setting of bearing makes the first wobble crank, the first connecting shaft, the first linkage piece, the second wobble crank, second
Connecting shaft and the second linkage piece rotate smooth.
As another situation, in a kind of template movement device of above-mentioned template machine, the transmission mechanism include connecting rod,
Third round axle and fix bar, one end and the material feeding seat of the fix bar are fixedly connected with, and the other end is located in the middle of connecting rod, described
Connecting rod can be rotated around fix bar, have the chute run through, one end of the connecting rod and the first compression cylinder in the material feeding seat
Piston rod is hinged, and one end of the other end and third round axle is fixedly connected with, and the other end of third round axle passes through the chute in material feeding seat,
The third round outer shaft sleeve has the guide wheel and guide wheel can rotate around third round axle.The piston rod of first compression cylinder stretches out, even
Bar rotates around fix bar, and one end of connecting rod rises, and the other end declines, so as to drive third round axle to decline along chute, makes guide wheel
Decline and press close to guide rail, on the contrary the piston rod of the first compression cylinder is retracted, and connecting rod rotates around fix bar, and one end of connecting rod declines,
The other end rises, so as to drive third round axle to rise along chute, guide wheel is risen away from guide rail, is lived by the first compression cylinder
Stretching for stopper rod, can eliminate guide wheel and the gap being oriented between clamping plate, make the effect of guide wheel compression guiding clamping plate good, guide clip
Plate movement is stable, so that template movement is stable.
In a kind of template movement device of above-mentioned template machine, several rectangular shapes are fixed with the installing plate
Support, second compression cylinder and the 3rd compression cylinder are connected on corresponding support.Support plays the work for installing carrier
With the setting of support facilitates the installation of the second compression cylinder and the 3rd compression cylinder, reasonable in design.
In a kind of template movement device of above-mentioned template machine, the gear train includes driving wheel, driven pulley and driving
Wheel, the driving wheel is connected on the output shaft of motor, and the driven pulley and driving wheel are coaxially disposed, the driving wheel with
Driven pulley is meshed, and the driving wheel and rack is meshed.Motor driving driving wheel rotation, driving wheel drive driven pulley and
Driving wheel rotates, and is moved so as to be oriented to clamping plate by rack drives.
In a kind of template movement device of above-mentioned template machine, the template movement device also includes fixed seat, described
Motor and the first compression cylinder are each attached in fixed seat.The setting of fixed seat pacifies motor and the first compression cylinder
The firmness of dress is high.
Compared with prior art, the template movement device for the template machine that the utility model is provided has advantages below:
1st, between the extension and contraction control guide wheel and guiding clamping plate that the template movement device of this template machine passes through the first compression cylinder
Distance, eliminate guide wheel and be oriented to clamping plate between gap, it is ensured that guide wheel compress be oriented to clamping plate, make guiding clamping plate movement it is smooth,
Mobile stable, so that being fixed on, the template movement being oriented on clamping plate is stable, the sewing quality of raising template machine.
2nd, the template movement device of this template machine makes clamping sleeve from the top down by the stretching of the second compression cylinder piston rod
Template is pressed on guiding clamping plate, makes hook from the sidepiece of template by template pressure by the stretching of the 3rd compression cylinder piston rod
It is tight to be oriented on clamping plate, template is pushed down from top and sidepiece both direction, the firmness for fixing template is high, template movement
Stability is good, so as to improve sewing quality.
Brief description of the drawings
Fig. 1 is the overall structure diagram one of this template machine template movement device embodiment one.
Fig. 2 is the overall structure diagram two of this template machine template movement device embodiment one.
Fig. 3 is motor and the structural representation being oriented between clamping plate in this template machine template movement device.
Fig. 4 is the overall structure diagram of the transmission mechanism of this template machine template movement device embodiment one.
Fig. 5 is the overall structure diagram that this template machine template movement device carries out side pressure to template.
Fig. 6 is the overall structure diagram that this template machine template movement device a pair of templates of embodiment are pushed.
Fig. 7 is the partial structural diagram of this template machine template movement device.
Fig. 8 is the overall structure sectional view that this template machine template movement device embodiment three is pushed to template.
In figure, 1, motor;2nd, it is oriented to clamping plate;21st, bottom plate;22nd, installing plate;23rd, rack;24th, tread plate;25th, lead
Rail;3rd, material feeding seat;4th, guide wheel;5th, gear train;51st, driving wheel;52nd, driven pulley;53rd, driving wheel;6th, the first compression cylinder;7th,
Two compression cylinders;8th, the 3rd compression cylinder;9th, clamping sleeve;10th, hook;11st, transmission mechanism;110th, connecting rod;111st, first swing
Crank;112nd, the first connecting shaft;113rd, the first linkage piece;114th, the first wheel shaft;115th, fix bar;116th, the second wobble crank;
117th, the second connecting shaft;118th, the second linkage piece;119th, the second wheel shaft;1110th, bearing;12nd, joint;13rd, embedded groove;14th, compress
Plate;15th, locating dowel;16th, through hole;17th, non-slip bumps;18th, support;19th, fixed seat;20th, template.
Embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
Embodiment one
As shown in Figure 1, Figure 2, shown in Fig. 7, the template movement device of this template machine includes motor 1, gear train 5, guide clip
Plate 2, material feeding seat 3, the first compression cylinder 6, the second compression cylinder 7, the 3rd compression cylinder 8, clamping sleeve 9, hook 10, transmission mechanism
11st, guide wheel 4 and fixed seat 19.
The top that clamping plate 2 is located at platen is oriented to, being oriented to clamping plate 2 includes bottom plate 21 and installing plate 22, bottom plate 21 and installing plate
22 be integral structure, and installing plate 22 is located at the crown center of bottom plate 21, and bottom plate 21 and installing plate 22 are perpendicular, bottom plate 21
Bottom be fixed with rack 23, the top of bottom plate 21 has tread plate 24 and the guide rail of cross section semicircular in shape 25, tread plate 24
It is located at the both sides of installing plate 22 with guide rail 25, and guide rail 25 is located at the surface of rack 23.
In the present embodiment, the quantity of fixed seat 19 is two, and the quantity of the compression cylinder 6 of motor 1 and first is also
Two, fixed seat 19, motor 1 are identical with the quantity of the first compression cylinder 6, and the compression cylinder 6 of motor 1 and first is solid
It is scheduled in fixed seat 19, fixed seat 19, the compression cylinder 6 of motor 1 and first are respectively positioned on the lower section of platen, in actual production
In, fixed seat 19, the quantity of the compression cylinder 6 of motor 1 and first can be three or be four, as shown in figure 3,
Gear train 5 includes driving wheel 51, driven pulley 52 and driving wheel 53, and driving wheel 51 is connected on the output shaft of motor 1,
Driven pulley 52 and driving wheel 53 are coaxially disposed, and driving wheel 51 is meshed with driven pulley 52, and driving wheel 53 is meshed with rack 23.
As shown in figure 4, transmission mechanism 11 includes connecting rod 110, the first wobble crank 111, the linkage of the first connecting shaft 112, first
Piece 113, the first wheel shaft 114, fix bar 115, the second wobble crank 116, the second connecting shaft 117, the second linkage piece 118 and the second wheel
Axle 119, the two ends of connecting rod 110 are respectively provided with bar hole, and material feeding seat 3 is in strip, and material feeding seat 3 is fixed on the top for being oriented to clamping plate 2,
Material feeding seat 3 is located at the top of guide rail 25, and one end and the material feeding seat 3 of fix bar 115 are fixedly connected with, and the other end is located in connecting rod 110
Middle, connecting rod 110 can be rotated around fix bar 115, one end of connecting rod 110 and the piston rod of the first compression cylinder 6 and the second pendulum
Dynamic crank 116 is hinged by pin, and the other end is hinged with the first wobble crank 111 by pin, and pin can be along bar shaped
Hole is slided, and one end of the first wobble crank 111 and the first connecting shaft 112 is fixedly connected with, and the other end of the first connecting shaft 112 passes through material feeding seat
3 are fixedly connected with one end of the first linkage piece 113, and one end of the other end of the first linkage piece 113 and the first wheel shaft 114 is fixedly connected with,
Guide wheel 4 is set in outside the first wheel shaft 114 and guide wheel 4 can rotate around the first wheel shaft 114, the second wobble crank 116 and the second connecting shaft
117 one end is fixedly connected with, and the other end of the second connecting shaft 117 is fixedly connected with through material feeding seat 3 and one end of the second linkage piece 118, the
One end of the other end of two linkage pieces 118 and the second wheel shaft 119 is fixedly connected with, and guide wheel 4 is set in the outer and guide wheel 4 of the second wheel shaft 119
It can be rotated around the second wheel shaft 119.A pair of bearings 1110 is equipped between first wheel shaft 114 and the second wheel shaft 119 and material feeding seat 3,
The circumference of guide wheel 4 has arc groove.
In the present embodiment, the quantity of the second compression cylinder 7 is four, and the quantity of clamping sleeve 9 is four, the 3rd compression cylinder
8 quantity is two, and the quantity of hook 10 is two, and two the second compression cylinders 7 and the 3rd compression cylinder 8 are one group,
3rd compression cylinder 8 is located between two the second compression cylinders 7, in actual production, the quantity of the second compression cylinder 7 for six or
Person eight, the quantity of clamping sleeve 9 is six or eight, and the quantity of the 3rd compression cylinder 8 is three or four, the number of hook 10
Measure as three or four.The support 18 of six rectangular shapes is fixed with installing plate 22, the second compression cylinder 7 and the 3rd is compressed
Cylinder 8 is connected on corresponding support 18 by bolt.
As shown in figure 5, the end of the piston rod of the 3rd compression cylinder 8 is fixed with joint 12, the bottom of joint 12 has embedding
Enter groove 13, one end and the support 18 of hook 10 are hinged, centre is located in embedded groove 13 and is hinged with joint 12, and the other end is
Compression end, compression end is fixed with the pressure strip 14 in strip towards the side of installing plate 22, when template 20 is pressed in guiding
When on clamping plate 2, pressure strip 14 is with installing plate 22 just to setting.
Locating dowel 15 is fixed with as shown in fig. 6, being oriented on clamping plate 2, clamping sleeve 9 is connected in the piston rod of the second compression cylinder 7
End, the bottom of clamping sleeve 9 has non-slip bumps 17, and locating dowel 15 is located at the side of clamping sleeve 9, locating dowel 15 and clamping sleeve
9 stagger setting.
Operation principle, by the distance between extension and contraction control guide wheel 4 and guide rail 25 of the piston rod of the first compression cylinder 6, makes
Guide wheel 4 eliminates the gap between guide rail 25, so that guide wheel 4, which is compressed, is oriented to clamping plate 2, motor 1 is driven by gear train 5
It is oriented to clamping plate 2 to move, is oriented to clamping plate 2 smooth, stably.Have in template 20 breach corresponding with locating dowel 15 and with pressure
The corresponding pressing groove of tight plate 14, template 20 is placed on the installed position for being oriented to clamping plate 2, and locating dowel 15 is embedded into breach
In, the piston rod of the 3rd compression cylinder 8 is stretched out, and hook 10 is rotated around pin joint, and the groove of pressing groove is compressed by pressure strip 14
Template 20, is pressed on guiding clamping plate 2, the piston rod of the second compression cylinder 7 stretches out by wall from horizontal direction, and clamping sleeve 9 is from upper
Template 20 is set to be pressed on guiding clamping plate 2 downwardly against template 20.
Embodiment two
The structure and principle of the present embodiment be the same as Example one are essentially identical, and different places are, in the present embodiment, transmission
Mechanism 11 includes connecting rod 110, third round axle and fix bar 115, and one end and the material feeding seat 3 of fix bar 115 are fixedly connected with, and the other end is worn
The middle of connecting rod 110 is located at, connecting rod 110 can be rotated around fix bar 115, one end of connecting rod 110 and the work of the first compression cylinder 6
Stopper rod is hinged, and one end of the other end and third round axle is fixedly connected with, and the other end of third round axle passes through material feeding seat 3, and guide wheel 4 is enclosed on
Outside the other end of third round axle, guide wheel 4 can rotate around third round axle.
Embodiment three
As shown in figure 8, the structure and principle of the present embodiment be the same as Example one are essentially identical, different places are, this reality
Apply in example, there is through hole 16 in clamping sleeve 9, when template 20 is pressed on guiding clamping plate 2 by clamping sleeve 9, locating dowel 15 is worn
In through hole 16.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more having used motor 1 herein, being oriented to clamping plate 2, bottom plate 21, installing plate 22, rack 23, tread plate
24th, guide rail 25, material feeding seat 3, guide wheel 4, gear train 5, driving wheel 51, driven pulley 52, driving wheel 53, the first compression cylinder 6, second
Compression cylinder 7, the 3rd compression cylinder 8, clamping sleeve 9, hook 10, transmission mechanism 11, connecting rod 110, the first wobble crank 111,
One connecting shaft 112, the first linkage piece 113, the first wheel shaft 114, fix bar 115, the second wobble crank 116, the second connecting shaft 117,
It is two linkage pieces 118, the second wheel shaft 119, bearing 1110, joint 12, embedded groove 13, pressure strip 14, locating dowel 15, through hole 16, anti-
The terms such as sliding projection 17, support 18, fixed seat 19, template 20, but it is not precluded from the possibility using other terms.Use these
Term is used for the purpose of more easily describing and explaining essence of the present utility model;It is construed as any additional limit
System is all disagreed with the utility model spirit.