Summary of the invention
It is an object of the invention to there are the problems referred to above for existing technology, it is proposed that in the sealing device of a kind of pet stocking
Upset feeding structure, this upset feeding structure is to be solved be technical problem is how to realize pet stocking in charging and conveying
Between connection.
The purpose of the present invention can be realized by following technical proposal: the upset feeding in the sealing device of a kind of pet stocking
Structure, the sealing device of described pet stocking includes base and the cabinet being fixed on base, it is characterised in that described cabinet
On be fixed with working plate, described working plate includes compoboard one and compoboard two, between compoboard one and compoboard two formed
Passage, one end of passage forms a charging aperture, and the other end of passage forms a discharging opening, is provided with for sending at described charging aperture
Entering the feed arrangement of pet stocking, described feed arrangement includes that conveyer belt, one end of described base are fixed with a bracing frame, described
Conveyer belt transmission be arranged on bracing frame, this upset feeding structure is arranged between the discharging end of conveyer belt and working plate, bag
Include delivery sheet and upset cylinder, above-mentioned base slide and is provided with a slide plate, described slide plate be in charging aperture and bracing frame it
Between, described slide plate is vertically fixed a support one, described support one upper end level fixes a trip shaft, described feeding
Plate is hinged on described trip shaft, and described upset cylinder is in the side of delivery sheet, and the cylinder body of upset cylinder passes through support
Two are fixed on slide plate, and the piston rod of upset cylinder is horizontally disposed with, and the end of piston rod is fixed with can be by delivery sheet from horizontal
State is converted into the push pedal of vertical state.
The operation principle of the upset feeding structure in the sealing device of this pet stocking is such that when pet stocking is transported to send
Time on flitch, the piston rod of the upset cylinder by being fixed on support two is protruding, it is possible to will be hinged on support one
Delivery sheet overthrow to vertical state, under the motion of slide plate, it is possible to pet stocking is transformed into vertical state from level
Carry out feeding;The piston rod of upset cylinder inwardly bounces back, and delivery sheet recovers to level.
Described base is provided with a sliding cylinder, and the cylinder body of sliding cylinder is fixed on base, the piston of sliding cylinder
Bar is horizontally disposed with and end is fixed on above-mentioned slide plate.Sliding cylinder can control the motion of slide plate, the piston rod of sliding cylinder
Stretching out, slide plate is near charging aperture, and beneficially pet stocking forwards between baffle plate one and baffle plate two from delivery sheet;The piston rod of sliding cylinder
Indentation, slide plate is near conveyer belt, and beneficially pet stocking forwards delivery sheet to from conveyer belt.
Described bracing frame includes four legs and some connecting pins for connecting each leg, described leg and company
Pin uses bolt and nut to fix.
Described support one includes that support column one, connecting plate and articulated slab, the lower end of support column one are fixed on slide plate, institute
The one end of the connecting plate stated is fixed on the upper end of support column one, and the lower end of described articulated slab is fixed on the other end of connecting plate,
The upper end of articulated slab is horizontally fixed with a hinge.
The lower section of described delivery sheet offers a groove, and the two side of groove is respectively fixed with a bearing, above-mentioned
The two ends of hinge are separately fixed in the inner ring of described bearing.Delivery sheet can rotate by hinge relatively.
Described support two includes that support column two and installing plate, the lower end of support column two are fixed on slide plate, described peace
Dress plate is fixed on the upper end of support column two, and the cylinder body of above-mentioned upset cylinder is fixing on a mounting board.
The coarse adjustment structure that can regulate channel sized between the two it is provided with between described compoboard one and compoboard two, should
Connecting hole three and that coarse adjustment structure includes the connecting hole one being opened on compoboard one and connecting hole two, is opened on compoboard two
Connecting hole four, connecting hole one and connecting hole three are corresponding, and connecting hole two and connecting hole four are corresponding, described connecting hole one and company
Connecing threaded between hole three has screw rod one, and threaded between described connecting hole two and connecting hole four have screw rod two.Simultaneously
Screw screw rod one and screw rod two, so that it may so that compoboard two is near compoboard one, make leading between compoboard one and compoboard two
Road diminishes;Unscrew screw rod one and screw rod two, so that it may so that compoboard two is away from compoboard one, make compoboard one and compoboard simultaneously
Passage between two becomes big.
Being provided with one between described charging aperture and discharging opening can make pet stocking be delivered to the conveying of discharging opening from charging aperture
Mechanism, this conveying mechanism arranges the baffle plate including rotating the chain being arranged on compoboard one He being slidably arranged on compoboard two
Two, the side of described compoboard one offers a mounting groove one, is circumferentially rotated by axial restraint in described mounting groove one
Mode be vertically provided with driving shaft and driven shaft, driving shaft and a conveying motor one are connected, and on driving shaft and driven shaft respectively
Being fixed with master gear and from gear, described chain drive is arranged on master gear and between gear, on the chain link of chain uniformly
It is fixed with baffle plate one;The side of described compoboard two offers a mounting groove two, and described baffle plate two is arranged on mounting groove two
In, the gap between baffle plate one and baffle plate two forms the passage passed through for pet stocking, between described baffle plate two and compoboard two
It is provided with the fine tuning structure that can regulate spacing between the two.
Concrete, open conveying motor one, driving shaft and master gear can be driven to rotate, in driven shaft and joining from gear
Under conjunction, so that chain is in master gear and transmission between gear, the final baffle plate one driven on chain link circulates transmission, with gear
Under the cooperation of plate two, pet stocking can be transported to discharging opening from charging aperture.Under the effect of fine tuning structure, can adjust by a small margin
The joint baffle plate two spacing between baffle plate one, firmly dotes on so that the gap formed between baffle plate one and baffle plate two just can be mingled with
One end of thing socks.
Described fine tuning structure includes connecting hole five and the screw rod three being opened on compoboard two, and above-mentioned baffle plate two passes through
Bearing is rotatably connected on the end of screw rod three, and described screw rod three is threaded in connecting hole five.Tighten screw rod three, baffle plate two
Near baffle plate one, the passage between compoboard one and compoboard two diminishes;Unscrew three, baffle plate two is away from baffle plate one, combination
Passage between plate one and compoboard two becomes big.
The bottom of described mounting groove two offers a groove, and the bottom of described baffle plate two is fixed with a draw runner, described
Draw runner be slidably arranged in described groove.Owing to draw runner can slide along groove all the time, thus can make to be connected with draw runner
Baffle plate two slide all along groove, thus do not make baffle plate two offset.
Compared with prior art, the invention have the advantages that
1, the present invention by screw rod one and screw rod two be conducive to the most significantly between regulation compoboard one and compoboard two away from
From, thus the channel sized quickly formed between controllable register one and baffle plate two so that it is adapt to the thickness of pet stocking;Pass through screw rod
Three are conducive to the channel sized formed between controllable register one and baffle plate two by a small margin so that it is adapt to the thickness of pet stocking, pass through
Conveying motor one, baffle plate one and baffle plate two can realize pet stocking and be transported to the discharging opening of working plate from the charging aperture of working plate,
It is beneficial to the sealing operation of pet stocking.
2, the present invention is under the common effect of delivery sheet and upset cylinder, can pet stocking be converted from level conveying
Carry for vertical state.
Detailed description of the invention
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As it is shown in figure 1, the sealing device of a kind of pet stocking, including base 1 and the cabinet 2 being fixed on base 1, cabinet 2
In be provided be capable of pet stocking one end open close enclosed mechanism and control enclosed mechanism run control system.Sealing machine
Structure and control system are prior art, and enclosed mechanism can realize an end closure of pet stocking, and control system can control sealing
Mechanism stops or running.
As shown in Figure 1, Figure 2 and Figure 3, cabinet 2 being fixed with working plate 3, working plate 3 includes compoboard one 3a and compoboard
Can relatively slide between two 3b, compoboard one 3a and compoboard two 3b, be formed logical between compoboard one 3a and compoboard two 3b
Road, one end of passage forms a charging aperture, and the other end of passage forms a discharging opening.Between compoboard one 3a and compoboard two 3b
Being provided with the coarse adjustment structure that can regulate channel sized between the two, this coarse adjustment structure includes the connection being opened on compoboard one 3a
Hole one and connecting hole two, the connecting hole three being opened on compoboard two 3b and connecting hole four, connecting hole one is relative with connecting hole three
Should, connecting hole two and connecting hole four are corresponding, and threaded between described connecting hole one and connecting hole three have screw rod 1, institute
Threaded between connecting hole two and the connecting hole four stated have screw rod 25.Screw screw rod 1 and screw rod 25 simultaneously, so that it may so that
Compoboard two 3b, near compoboard one 3a, makes the passage between compoboard one 3a and compoboard two 3b diminish;Unscrew screw rod simultaneously
One 4 and screw rod 25, so that it may so that compoboard two 3b is away from compoboard one 3a, make between compoboard one 3a and compoboard two 3b
Passage becomes big.
As shown in Figure 4, the feed arrangement in the sealing device of a kind of pet stocking, it is arranged at charging aperture, dotes on for feeding
Thing socks, this feed arrangement includes that conveyer belt 14, one end of base 1 are fixed with a bracing frame 13, described bracing frame 13 passes through
The mode that axial restraint circumferentially rotates is provided with actively conveying axis and driven conveying axis, actively conveying axis and conveying motor 2 17 phase
Even, and actively it is respectively fixed with drive roll 15 and driven voller 16, described conveyer belt 14 transmission on conveying axis and driven conveying axis
Being arranged between drive roll 15 and driven voller 16, the discharging end of conveyer belt 14 is provided with and can pet stocking be converted into from level
The vertically upset feeding structure of state.
Concrete, bracing frame 13 includes four legs and some connecting pins for connecting each leg, above-mentioned active
Conveying axis is rotated by bearing and is disposed therein on two legs, and above-mentioned driven conveying axis is rotated by bearing and is arranged on additionally
On two legs, actively conveying axis and driven conveying axis be arranged in parallel.
The operation principle of feed arrangement is such that opening conveying motor 2 17, can drive actively conveying axis and active
Roller 15 rotates, under the cooperation of driven conveying axis and driven voller 16 so that conveyer belt 14 drive roll 15 and driven voller 16 it
Between transmission, pet stocking on final driving conveying belt 14 realizes conveying, from one end of conveyer belt 14, pet stocking is transported conveying
With the other end of 14;Under the effect of upset feeding structure, pet stocking can be converted into vertical state from level, thus
Pet stocking is transformed between baffle plate 1 and baffle plate 2 11 from conveyer belt 14, it is achieved seal and carry.
As it is shown in figure 5, the upset feeding structure in the sealing device of a kind of pet stocking, this upset feeding structure includes feeding
Plate 18 and upset cylinder 19, above-mentioned base 1 slides and is provided with a slide plate 20, and described slide plate 20 is in charging aperture and bracing frame
Between 13, described slide plate 20 being vertically fixed a support 1, described support 1 upper end level fixes a trip shaft,
Described delivery sheet 18 is hinged on described trip shaft, and described upset cylinder 19 is in the side of delivery sheet 18, and upset gas
The cylinder body of cylinder 19 is fixed on slide plate 20 by support 2 22, and the piston rod of upset cylinder 19 is horizontally disposed with, the end of piston rod
It is fixed with the push pedal 23 that delivery sheet 18 can be converted into vertical state from level.
The operation principle of upset feeding structure is such that when pet stocking is transported on delivery sheet 18, by being fixed on
The piston rod of the upset cylinder 19 on support 2 22 is protruding, it is possible to overthrown by the delivery sheet 18 being hinged on support 1
To vertical state, under the motion of slide plate 20, it is possible to pet stocking is transformed into vertical state from level and carries out feeding;Turn over
The piston rod of rotaring cylinder 19 inwardly bounces back, and delivery sheet 18 recovers to level.
In the present embodiment, base 1 is provided with a sliding cylinder 24, and the cylinder body of sliding cylinder 24 is fixed on base 1, sliding
The piston rod of dynamic air cylinder 24 is horizontally disposed with and end is fixed on above-mentioned slide plate 20.Sliding cylinder 24 can control the fortune of slide plate 20
Dynamic, the piston rod of sliding cylinder 24 stretches out, and slide plate 20 is near charging aperture, and beneficially pet stocking forwards baffle plate 1 He to from delivery sheet 18
Between baffle plate 2 11;The piston rod indentation of sliding cylinder 24, slide plate 20 near conveyer belt 14, beneficially pet stocking from conveyer belt 14 turns
To delivery sheet 18.
Support 1 includes that support column one, connecting plate and articulated slab, the lower end of support column one are fixed by screws in slide plate
On 20, one end of described connecting plate is fixed on the upper end of support column one, and the lower end of described articulated slab is fixed on connecting plate
The other end, the upper end of articulated slab is horizontally fixed with a hinge.Concrete, the lower section of delivery sheet 18 offers a groove, groove
Being respectively fixed with a bearing on two side, the two ends of above-mentioned hinge are separately fixed in the inner ring of described bearing, delivery sheet 18
Can rotate by hinge relatively.
Support 2 22 includes that support column two and installing plate, the lower end of support column two are fixed on slide plate 20, described installation
Plate is fixed on the upper end of support column two, and the cylinder body of above-mentioned upset cylinder 19 is fixing on a mounting board.
As shown in Figure 6, the conveying mechanism in the sealing device of a kind of pet stocking, it is arranged between charging aperture and discharging opening,
For making pet stocking be delivered to discharging opening from charging aperture, this conveying mechanism includes rotating the chain 6 being arranged on compoboard one 3a
With the baffle plate 2 11 being slidably arranged on compoboard two 3b, the side of compoboard one 3a offers a mounting groove one, mounting groove one
In by the way of axial restraint circumferentially rotates, be vertically provided with driving shaft 7 and driven shaft 8, driving shaft 7 and conveying motor 1 phase
Even, and being respectively fixed with master gear and from gear on driving shaft 7 and driven shaft 8, chain 6 transmission is arranged on master gear and from gear
Between, the chain link of chain 6 is uniformly fixed with baffle plate 1;The side of compoboard two 3b offers a mounting groove two, baffle plate two
11 are arranged in mounting groove two, and the gap between baffle plate 1 and baffle plate 2 11 forms the passage passed through for pet stocking, described
It is provided with, between baffle plate 2 11 and compoboard two 3b, the fine tuning structure that spacing between the two can be regulated.
The operation principle of conveying mechanism is such that opening conveying motor 1, and driving shaft 7 and master gear can be driven to turn
Dynamic, at driven shaft 8 with from the cooperation of gear, so that chain 6 is in master gear and transmission between gear, finally drive chain link
On baffle plate 1 circulate transmission, with under the cooperation of baffle plate 2 11, pet stocking can be transported to discharging opening from charging aperture.
Under the effect of fine tuning structure, can the controllable register 2 11 spacing between baffle plate 1 by a small margin so that
The gap formed between baffle plate 1 and baffle plate 2 11 just can be mingled with one end of pet stocking.
Specifically, fine tuning structure includes being opened in the connecting hole five on compoboard two 3b and screw rod 3 12, above-mentioned gear
Plate 2 11 is rotatably connected on the end of screw rod 3 12 by bearing, and described screw rod 3 12 is threaded in connecting hole five.Twist
Tight screw rod 3 12, baffle plate 2 11 diminishes near the passage between baffle plate 1, compoboard one 3a and compoboard two 3b;Unscrew
3 12, baffle plate 2 11 is away from baffle plate 1, and the passage between compoboard one 3a and compoboard two 3b becomes big.
More particularly, the bottom of mounting groove two offers a groove, and the bottom of baffle plate 2 11 is fixed with a draw runner, described
Draw runner be slidably arranged in described groove.Owing to draw runner can slide along groove all the time, thus can make to be connected with draw runner
Baffle plate 2 11 slide all along groove, thus do not make baffle plate 2 11 offset.
As it is shown in fig. 7, the blanking device in the sealing device of a kind of pet stocking, it is arranged on discharge outlet, is used for sending and dotes on
Thing socks, this blanking device includes that discharge nozzle 25 and blanking barrel 26, discharge nozzle 25 are fixed on base 1 by support 3 27, discharging
Pipe 25 one end is connected with discharging opening, the other end of discharge nozzle 25 towards under, blanking barrel 26 is fixed on the end by demountable structure
On seat 1, and blanking barrel 26 is in the lower section in discharge nozzle 25 exit, and the side in discharge nozzle 25 exit is fixed with a suction tube
28, described suction tube 28 is connected with discharge nozzle 25, and suction tube 28 also can will fall off doting on to discharge nozzle 25 with one
The negative-pressure air fan 29 that thing socks are drawn to blanking barrel 26 is connected.Also it is respectively fixed with infrared on the two side in discharge nozzle 25 exit
Line emitter and infrared receiver, RF transmitter and infrared receiver are in suction tube 28 and are connected with discharge nozzle 25
The top of point, and RF transmitter is towards infrared receiver, RF transmitter and infrared receiver one sense of formation
Answer straight line, described sensing to pass straight through the axial line of discharge nozzle 25, described base 1 is further fixed on a PLC programmable control
Device processed, described infrared receiver is all connected with described PLC by circuit with negative-pressure air fan 29.
The operation principle of blanking device is such that under the effect of negative-pressure air fan 29, just can be by by suction tube 28
The pet stocking being in discharge nozzle 25 feed end is drawn onto the port of export of discharge nozzle 25, when pet stocking is through RF transmitter and infrared
During the sensing straight line that line receiver is formed, infrared receiver will be blocked and normally receive the letter sent by RF transmitter
Number, under the effect of PLC, PLC obtains information and records one pet stocking of absorption, with
Time close negative-pressure air fan 29, when pet stocking is drawn onto the port of export of discharge nozzle 25, under the effect of himself gravity, pet stocking from
Move and drop down onto in blanking barrel 26;The interval appointment time, restart negative-pressure air fan 29, again draw the house pet of discharge nozzle 25 feed end
Socks, the pet stocking of discharge nozzle 25 feed end will be drawn to blanking barrel 26, simultaneously by such negative-pressure air fan 29 endlessly
The pet stocking quantity of absorption is recorded in PLC.
When the sensing straight line that pet stocking is formed with infrared receiver by RF transmitter, infrared ray can be made to connect
Receive device signal change, so that it is determined that pet stocking by quantity, decreasing staff needs pet stocking number
The operation of number, improves work efficiency during pet stocking blanking.
Being fixed with a stripper between the feed end of discharging opening and discharge nozzle 25, the inclined shape of described stripper is arranged.
The discharge end of discharge nozzle 25 is hinged with a lid 30, one end of described jointed shaft and oscillating motor 31 phase by jointed shaft
Even, described oscillating motor 31 is fixed on the lateral wall of discharge nozzle 25, and described oscillating motor 31 passes through circuit with above-mentioned
PLC is connected.Start oscillating motor 31, the output shaft rotation of oscillating motor 31, thus drive lid 30 to occur
Upset, pet stocking drops into blanking barrel 26 from the discharge end of discharge nozzle 25.
Specifically, demountable structure includes locating ring 32, and it is some fixed that the inwall of described locating ring 32 is uniformly provided with
Position block 33, is equipped with spring 34 between described locating ring 32 and locating piece 33, one end of spring 34 is fixed on locating ring 32,
The other end of spring 34 is fixed on locating piece 33.Under the effect of spring 34, locating piece 33 can be relative in locating ring 32
Motion, surrounds the orientation range of a uncertain diameter, thus the blanking barrel 26 of suitable various different-diameter, range is big.
In the present embodiment, base 1 is provided with one and moves cylinder 35, and the cylinder body of mobile cylinder 35 is fixed on base 1, moves
The piston rod of dynamic air cylinder 35 is horizontally disposed with and end is fixed on above-mentioned locating ring 32.Mobile cylinder 35 can control locating ring 32
Motion, the piston rod of mobile cylinder 35 stretches out, and locating ring 32, near discharging opening, is beneficially expected under pet stocking in blanking barrel 26;
The piston rod indentation of mobile cylinder 35, locating ring 32 is away from discharging opening, and beneficially pet stocking artificially collects.
Support 3 27 includes that support column three, support bar and the collar, the lower end of support column three are fixed on base 1, support bar
One end be fixed on the upper end of support column three, the described collar is fixed on the other end of support bar, and above-mentioned discharge nozzle 25 is sheathed
In the described collar.
As shown in Figure 8 and Figure 9, compoboard one 3a being additionally provided with spool erecting device, spool erecting device includes main line cylinder
Frame and by-pass tub, main line tub is arranged on the top of working plate 3, and main line tub includes column one 36a in hollow tubular, cunning
Move column two 36e, peg one 36b being fixed on column one 36a being arranged in column one 36a and be fixed on column two 36e
On peg two 36f, described peg one 36b and peg two 36f all surround circle, if described peg one 36b is by the Heavenly Stems and Earthly Branches
Strut one 36c is fixed on column one 36a, and described peg one 36b is fixed with some mounting rods one for installing spool
36d, described peg two 36f are fixed on column two 36e by some support bar two 36g, fixing on described peg two 36f
There are some mounting rod two 36h for installing spool;By-pass tub is arranged on the side of working plate 3, and by-pass tub includes base plate
37a and the some and base plate 37a vertically disposed installation montant 37b being fixed on base plate 37a, installs montant for described every two
It is respectively and fixedly provided with between 37b on some installation cross bar 37c, described installation montant 37b and installation cross bar 37c and is respectively and fixedly provided with some use
In mounting rod three 37d installing spool.Installing and be fixed with some conductor rods on montant 37b, described conductor rod is all in hollow pipe
Shape, conductor rod is conducive to the orderly guiding of yarn.
Mounting rod one 36d of peg one 36b of main line tub can install spool, at the peg two of main line tub
On mounting rod two 36h of 36f, spool can also be installed, at installation montant 37b and the mounting rod of installation cross bar 37c of by-pass tub
Can also install spool, so design on three 37d can make spool be evenly distributed in the surrounding of body or the side of body,
Will not make to knit line will not get muddled simultaneously.
The sealing device of this pet stocking, its operation principle is such that
First, pet stocking is placed on conveyer belt 14;
Then, under the effect that conveying motor 2 17 provides power, actively conveying axis and driven conveying axis is utilized to carry respectively
Dynamic drive roll 15 and driven voller 16 transmission, the transmission of final driving conveying belt 14, it is possible to realize pet stocking and carry out at charging aperture
Charging, pet stocking falls on delivery sheet 18;
Then, under the effect that upset cylinder 19 provides power, push pedal 23 is utilized to be overthrown from level by delivery sheet 18
To vertical state, it is achieved pet stocking is transformed into vertical state from level and carries out feeding, and pet stocking enters to baffle plate 1 He
Between baffle plate 2 11;
Secondly, under the effect that conveying motor 1 provides power, driving shaft 7 and driven shaft 8 is utilized to drive master gear respectively
With from gear drive, final drive chain 6 transmission, it is possible to realize pet stocking and be transported to discharging opening from charging aperture, meanwhile, in envelope
Under the effect of mouth mechanism and control system, one end of pet stocking is sealed, and make the other end of pet stocking keep unimpeded, complete
Automatically discharge nozzle 25 charging aperture is fallen to after becoming the sealing of pet stocking;
Finally, under the effect of negative-pressure air fan 29, just can will be in doting on of discharge nozzle 25 feed end by suction tube 28
Thing socks are drawn onto the port of export of discharge nozzle 25, and under the effect of himself gravity, pet stocking drops down onto in blanking barrel 26 automatically.
Specific embodiment described herein is only to present invention spirit explanation for example.Technology neck belonging to the present invention
Described specific embodiment can be made various amendment or supplements or use similar mode to replace by the technical staff in territory
Generation, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Although the most more employing 1, base;2, cabinet;3, working plate;3a, compoboard one;3b, compoboard two;4、
Screw rod one;5, screw rod two;6, chain;7, driving shaft;8, driven shaft;9, conveying motor one;10, baffle plate one;11, baffle plate two;12、
Screw rod three;13, bracing frame;14, conveyer belt;15, drive roll;16, driven voller;17, conveying motor two;18, delivery sheet;19, turn over
Rotaring cylinder;20, slide plate;21, support one;22, support two;23, push pedal;24, sliding cylinder;25, discharge nozzle;26, blanking barrel;
27, support three;28, suction tube;29, negative-pressure air fan;30, lid;31, oscillating motor;32, locating ring;33, locating piece;34, bullet
Spring;35, cylinder is moved;36a, column one;36b, peg one;36c, support bar one;36d, mounting rod one;36e, column two;
36f, peg two;36g, support bar two;36h, mounting rod two;37a, base plate;37b, installation montant;37c, installation cross bar;37d、
The third term of mounting rod, but it is not precluded from using the probability of other term.These terms are used to be only used to more easily
Describe and explain the essence of the present invention;Being construed as any additional restriction is all to disagree with spirit of the present invention
's.