CN204693023U

CN204693023U - Filling machine under full-automatic three straight line type lids

Info

Publication number: CN204693023U
Application number: CN201520389242.4U
Authority: CN
Inventors: 彭山宏; 王斌
Original assignee: YANGZHOU MEIDA FILLING MACHINERY CO Ltd
Current assignee: YANGZHOU MEIDA FILLING MACHINERY CO Ltd
Priority date: 2015-06-08
Filing date: 2015-06-08
Publication date: 2015-10-07
Anticipated expiration: 2025-06-08

Abstract

Filling machine under full-automatic three straight line type lids, provides that a kind of brand-new automaticity is high, manufacturing efficiency is high, with low cost, stable and reliable for performance, maintaining conveniently filling machine under Full-automatic linear type three skull.Comprise frame, the Over-The-Counter be located in frame, conveyor line through frame, electric control box, operating console, the servo screw rod Linear feed mechanism be located in frame, side assist device, three groups of linearly equidistant arrangement lid under filling machine head, three groups of suction boosters, liquid container, three Sets of Measurement machines, hot blast defrosting plant, solenoid valve group and electrical interconnecting box, air distributing devices.The utility model automatically can complete and enter tank, poppet-valve door to the inhalator jar putting refrigerant valve gap, vacuumizes, covers lower quantitative filling refrigerant, compress valve and seal, reclaim (refrigerant), go out tank, three heads can standard-sized sheet, also only can be opened one or two, improve working efficiency, automaticity is high.

Description

Filling machine under full-automatic three straight line type lids

Technical field

The utility model relates to a kind of aerosol filling machine, particularly relates to the filling machine producing the special refrigerant of car air conditioner.

Background technique

The special refrigerant aerosol preparations of car air conditioner, though be referred to aerosol spray, has very big difference with common aerosol spray.Though its inhalator jar adopts seamless tin, built-up tin or aluminium pot (monolithic tank) equally, requirement of withstand voltage is generally slightly high than common inhalator jar." the special valve gap of standard refrigerant, has spool different from common aerosol valve, and refrigerant valve gap is without core valve in valve gap employing 1.It is first in the uncovered situation of inhalator jar that common aerosol adds man-hour, filling liquid on filling machine, then puts valve and seal on seaming machine, then to filling propellant (as liquid gas such as LPG, DME, R-134a) on inflator.The filling of propellant fills into inhalator jar from spool.Fill can primary filling to amount, also can divide the amount of being filled to several times.The special refrigerant of car air conditioner only fills refrigeration agent (as liquid gas such as R-134a), and because valve gap is centreless, filling refrigeration agent must fill before valve gap does not seal.The general filling method of this point and common aerosol is made a world of difference.Refrigeration agent is all liquid gas, also namely at normal temperatures and pressures in gaseous state, uses filling machine filling the filling liquid that filling refrigerant can not resemble common aerosol, uses inflator filling the inflation that can not resemble common aerosol.

The filling method that current domestic automobile air-conditioning special refrigerant aerosol spray passes through has two kinds: one to be freezing filling; Two is that lid is lower filling.

Freezing filling method is the method adopted the earliest.Be first by refrigeration, refrigeration agent is down to certain temperature, refrigeration agent be in a liquid state at ambient pressure, then enter inhalator jar with filling machine quantitative filling, put valve gap rapidly and seal.This method energy consumption is large, refrigeration agent loss also large, production environment is severe.At present seldom to adopt, to be severally eliminated.

The lower filling method of lid, also claims lid retrofilling method.It is a kind of filling method current both at home and abroad at present.General lid retrofilling is that filling head first presses down, under filling head peripherally with tank mouth outside tank shoulder place periphery compress and seal, a confined space separated with outside is formed in inside, sucked by the valve gap be placed on above tank mouth in seal space and mention, filling can only be filled by the gap below valve gap and above inhalator jar tank mouth in confined space.If have air and steam to stay in inhalator jar, after joining car air conditioner, can refrigeration be reduced, even cause air-conditioning to damage.So also need air in inhalator jar to pump before filling, reaching certain vacuum degree could be filling.Will pressure valve sealing immediately after refrigerant charge.A certain amount of refrigeration agent (liquid gas) also can be remained in confined space outside valve gap, because refrigeration agent is worth expensive, so also need after sealing to reclaim residual refrigeration agent after sealing.The feature such as the special refrigerant of known car air conditioner from the above mentioned filling have complex procedures, it is high to require, must once complete, filling speed is slower.

The manufacturer of current domestic automobile air-conditioning special refrigerant aerosol spray (minority adopts except freezing filling little factory), adopts the filling refrigerant of filling machine under semi-automatic lid.Except only several imports are semi-automatic and under full-automatic lid except filling apparatus, be all filling machine under domestic semi-automatic lid.Along with the increase year by year of China's automobile guarantee-quantity in recent years, the demand rapid growth of the special refrigerant aerosol spray of car air conditioner.But the domestic price of labour power also the comparison of the growth is fast.The lower special refrigerant aerosol spray of filling machine production and processing car air conditioner of full-automatic lid is adopted to become inexorable trend.Only have a few company of American-European countries can produce the lower filling machine of full-automatic lid at present in the world, and expensive, and equipment maintenance cost is high, the cycle is long.

Under existing lid, filling machine can not meet the needs of car air conditioner special refrigerant aerosol spray production and processing well in a word.

Model utility content

The utility model, for above problem, provides that a kind of brand-new automaticity is high, manufacturing efficiency is high, with low cost, stable and reliable for performance, maintaining conveniently filling machine under Full-automatic linear type three skull.

The technical solution of the utility model is: comprise frame, be located at the Over-The-Counter in frame, through the conveyor line of frame, electric control box, operating console, be located at the Jin Guan mechanism in frame, filling machine head under the lid of three groups of linearly equidistant arrangement, three groups of suction boosters, three liquid containers and three Sets of Measurement machines, described conveyor line is used for the conveying of inhalator jar, filling machine head under described lid, suction booster, liquid container and weighing machine one_to_one corresponding, described Jin Guan mechanism to be used for inhalator jar to transport under described lid immediately below filling machine head, described operating console connects described electric control box, described electric control box comprises PLC, and for controlling filling machine head under described lid.

Described conveyor line comprises conveyor line footing, conveyor line column, conveyor line bracket, conveyor line side plate, conveyor line strut, protect block support, conveyor belt, conveyor line protect block, driving mechanism; Conveyor belt adopts flat-top chain sheet conveying belt, protects to block support and be fixed on conveyor line side plate, and conveyor line protects to block to be fixed on to protect and blocks on support, and conveyor line protects the spacing of blocking can block bracket adjustment by protecting.Conveyor line side plate is fixed on conveyor line bracket.Conveyor line bracket is connected with conveyor line column, and column lower end is provided with conveyor line footing.Conveyor line is used for straight line conveying air fog tank, the inhalator jar putting valve gap is transported to main frame and is transferred out by filling good inhalator jar from main frame.

Described Jin Guan mechanism comprises side assist device, servo screw rod Linear feed mechanism, enter tank left skateboard, protect and block one, middle slide plate, protect and block three, go out tank guide plate component, go out the right slide plate of tank and protect and block two, entering tank left skateboard is installed on the table top of frame, side assist device is arranged on on tank left skateboard, middle slide plate is arranged on rack table, protect and block three and be arranged on the table top of frame, going out the right slide plate of tank is installed on the table top of frame, going out tank guide plate component is arranged on out on the right slide plate of tank, servo screw rod Linear feed mechanism is installed on the front table top of frame, protect and block one and be arranged on servo screw rod Linear feed mechanism, protect and block two left sides and be arranged on servo screw rod Linear feed mechanism,

Described enter tank left skateboard, side assist device, middle slide plate, guardrail three, go out tank guide plate component and go out the right slide plate of tank set gradually formed side block limit one, described guardrail one, servo screw rod Linear feed mechanism and guardrail two set gradually and form side block limit two, for conveying air fog tank between described side block limit one and side block limit two.

Described servo screw rod Linear feed mechanism comprises support one, screw rod end axle, enter tank screw rod, belt shaft, synchronous pulley one, Timing Belt, proximity switch, switch bracket, synchronous pulley two, support two, actuating motor and base plate, support one, support two is connected with base plate screw, support one, support two is respectively equipped with bearing hole, and bearing is installed, support one, the both sides of the bearing hole of support two install left end bearing cap respectively, right-hand member bearing cap, the left end entering tank screw rod is provided with screw rod end axle, right-hand member is provided with belt shaft, screw rod end axle is connected with the bearing inner race be arranged in support one bearing hole, belt shaft is connected with the bearing inner race be arranged in support two bearing hole, belt shaft is installed synchronous pulley one, Timing Belt is arranged on synchronous pulley one and synchronous pulley two, synchronous pulley two is installed on the motor shaft of actuating motor, actuating motor screw is arranged on support two, the motor shaft of actuating motor rotates and can drive into tank bolt rotary, proximity switch is arranged on switch bracket, and switch bracket screw is installed on the side of support two, and the periphery of belt shaft is provided with sensing hole, and described belt shaft action makes the corresponding described proximity switch of sensing hole.

Described side assist device comprises cover plate, stepper motor, base plate, synchronous pulley three, Timing Belt, synchronous pulley four, driving shaft, spacer, bearing, circlip, step, rib, flat key, driving wheel, circlip, bearing, upper bearing bracket, strut, belt, tensioner ear, block, nut, driven axle, circlip, bearing, driven wheel, fitting seat, push pedal seat, push pedal, push pedal axle, spring

Cover plate is be arranged in parallel with base plate and is connected by two struts, stepper motor is fixed on base plate, the motor shaft of stepper motor is installed synchronous pulley three, base plate has kidney slot, stepper motor has certain left and right adjusting scope in order to regulate the tightness of Timing Belt.

Driving wheel is arranged on driving shaft, the upper and lower of driving wheel respectively has a rib, driving wheel is between cover plate and base plate, the upper/lower terminal of driving shaft is connected on described cover plate and base plate respectively by bearing, synchronous pulley four is installed in the lower end of driving shaft, and Timing Belt is connected on synchronous pulley three and synchronous pulley four;

Driven wheel connects with driven axle and freely can rotate relative to driven axle, and by belt transmission between driving wheel and driven wheel, driven axle to be slidably connected between described cover plate and base plate and degree of tightness for controlling belt; Namely cover plate and base plate are provided with corresponding kidney slot; The upper/lower terminal of driven axle is slidably connected with tensioner ear respectively, the both sides, front and back of tensioner ear are provided with chute, two tensioner ears are arranged on the kidney slot of cover plate and base plate respectively, tensioner ear can slide on cover plate or base plate, the right-hand member of tensioner ear is provided with screw rod, the screw rod that block is enclosed within tensioner ear is buckled in the right-hand member of cover plate or base plate, the right position of the adjustable tensioner ear of adjusting nut is to regulate the tightness of belt.

Fitting seat is arranged on the platen of frame, and base plate is connected with fitting seat; Push pedal is provided with two push pedal axles, two push pedal seats are screwed on base plate, two push pedal axles are inserted in the hole of two push pedal seats respectively, push pedal axle fills two and tight nut plays axial limiting effect, push pedal on push pedal axle and between push pedal seat, spring is housed, push pedal can slide axially along push pedal axle and under the action of the spring to belt tension thrust.

The left side of base plate and right back portion respectively establish a kidney slot, with screw and packing ring, the fitting seat on base plate and rack platen is fixed by the kidney slot through the right back portion of base plate, base plate with enter tank left skateboard under the kidney slot of base plate left part, add a packing ring, and fixed by screw, a certain amount of adjustment can be done along the kidney slot direction of base plate in the mounting point of whole side assist device and frame.Push pedal is provided with two push pedal axles, two push pedal seats are screwed on base plate, two push pedal axles are inserted in the hole of two push pedal seats respectively, push pedal axle fills two and tight nut plays axial limiting effect, push pedal on push pedal axle and between push pedal seat, spring is housed, push pedal can slide axially along push pedal axle, and the tensioner thrust of giving belt certain under the action of the spring.Jin Guan mechanism is for being incorporated into the slide plate on rack table by the inhalator jar putting valve gap that conveyor line transports, inhalator jar is separated the distance that equals the pitch into tank screw rod, then being accurately transported to three lids descends the filling station on filling machine head base plate etc. to be filled, is progressively passed out on conveyor line through slide plate by filling good inhalator jar simultaneously and is transported away.

Under described lid, filling machine head comprises handwheel, large column, post, round nut, supporting plate, balladeur train, lock screw, the upper induction switch of upper cylinder piston, switch installation board, guide plate, the upper induction switch of middle cylinder piston, sender plate, sentinel valve, switch bracket, the next induction switch of sealing cylinder piston, the next induction switch of upper cylinder piston, filling valve, recovery valve, vacuum pumping valve, the lower filling machine head base plate of lid, feather key, nut, copper sheathing, regulate screw mandrel, upper cylinder lid, upper cylinder, upper cylinder piston, one-way throttle valve, round nut, middle cylinder head, middle cylinder piston, middle cylinder, sealing cylinder, fast-discharge valve, sealing cylinder piston, sealing cylinder piston rod, sealing cylinder lid, connecting body, spring, spring guide, filling head spring, guide ring, the axis of cone, stop screw, filling head, guide ring, gland, seal body, sealing pawl, positioning ring, collar, sealed pressing sleeve, adjustment sleeve, filling head seal ring, seal ring collar, inhale valve sealing ring, sealing gasket, guiding trim ring, tank shoulder plain cushion,

Large column and post are vertical to be respectively fixedly connected on the lower filling machine head base plate of lid, supporting plate is fixed on balladeur train, balladeur train is cuboid, and the above and below of balladeur train is provided with through hole, and through hole studs with two copper sheathings, trailing flank is provided with kidney slot, left surface is provided with two locking screws, the endoporus of copper sheathing and large column Spielpassung, the built-in kidney-shaped feather key of kidney slot, feather key can slide in kidney slot, and feather key is screwed with nut and is connected;

Supporting plate is provided with three holes, wherein two holes respectively with the cylindrical Spielpassung of large column and post, to be spun on post and tight supporting plate with two round nuts, the hole of supporting plate front end is cut open along center line, and is provided with two pairs of screws, for installing and locking upper cylinder; Post is tubulose, and large column is hollow structure, and rear edge is provided with kidney slot, feather key can slide up and down in kidney slot, and large column upper/lower terminal respectively establishes a copper sheathing, regulates screw mandrel to be installed in large column, be spun on nut, coordinate with the copper sheathing at large column two ends simultaneously, free to rotate; Handwheel is fixedly connected on the upper end regulating screw mandrel;

Upper cylinder lid, upper cylinder and upper cylinder piston composition upper cylinder are installed on supporting plate, middle cylinder head, cylinder during middle cylinder and middle cylinder piston form, middle cylinder head and upper cylinder piston are with to be threaded and tight with round nut, sealing cylinder, sealing cylinder piston, sealing cylinder piston rod and sealing cylinder lid composition sealing cylinder, sealing cylinder and middle cylinder piston are with to be threaded and tight with round nut, sealing cylinder covers and is provided with sentinel valve, sender plate and the next induction switch of sealing cylinder piston be arranged on switch bracket, in work, when sealing cylinder descent of piston is to sealing cylinder lower limit, by the valve stem depressions of sentinel valve, the next induction switch of sealing cylinder piston has induced signal to output to PLC, when sealing cylinder piston reset is to sealing cylinder upper limit, the next induction switch of sealing cylinder piston does not have induced signal to export, the axis of cone is connected with sealing cylinder piston rod thread, spring is housed in sealing cylinder piston rod and between the axis of cone in order to the tensioner axis of cone, axis of cone lower end is provided with male cone (strobilus masculinus), inner hexagonal hole is provided with in the endoporus of lower end, in work, the useful inner hexagon spanner turn axis of cone changes the axially upper/lower positions of the axis of cone and sealing cylinder piston rod, thus the size that when changing sealing, during the pressure of sealing cylinder piston, sealing pawl opens, be achieved the adjustment of the sealing diameter of valve gap.Connecting body is connected with sealing cylinder cover screw, and connecting body endoporus is provided with two grooves, and groove is built with the guide ring for the guiding to sealing cylinder piston rod periphery, and seal body to be threaded in below connecting body and to compress gland, the large periphery of seal body is provided with a groove, installs the guide ring of the guiding be used for the lower filling head endoporus of lid in groove, sealing pawl is solid of rotation, eight equal parts is cutd open into along longitudinal section equalization, positioning ring is placed in the groove of sealing pawl, collar is the ring body cutting opening, be stuck in the periphery of sealing pawl, be placed in seal body the step hole be positioned at below gland, the lower end of sealing pawl is provided with inner conical surface, seal body lower end endoporus is provided with internal thread, adjustment sleeve is installed, inhaling valve seals is enclosed within adjustment sleeve, suction valve seals is fixed on adjustment sleeve by the outside that seal ring collar is stuck in adjustment sleeve, seal with seal ring between seal body and adjustment sleeve, the lower end surface of adjustment sleeve is provided with two symmetrical apertures, in work, available dedicated spanner turn adjustment sleeve changes the relative position up and down between adjustment sleeve and sealing pawl, thus regulate the sealing degree of depth.Sealed pressing sleeve is connected with the lower filling head thread of lid, under lid below sealed pressing sleeve, the groove of filling head is built with filling head seal ring, seal with seal ring between sealed pressing sleeve and the lower filling head of lid, the lower filling head of lid and seal body are slidably connected, seal with seal ring between seal body and sealed pressing sleeve, seal with filling head seal ring between seal body and the lower filling head of lid, the lower filling head top of lid is provided with a radial screw, and mounting limit screw catches on seal body; The upper-end surface of the lower filling head of lid is provided with the hole of four equal distribution outside endoporus, and filling head spring is placed in this hole, and spring guide threaded upper ends is connected to sealing cylinder lid lower end, and spring guide lower end is inserted in the hole of filling head spring; Tank shoulder plain cushion is contained in the step hole of guiding trim ring, guiding trim ring is threaded in the lower end of the lower filling head of lid, tank is takeed on plain cushion to compress with the end face of the lower filling head of lid, the bottom of the lower filling head of lid is provided with three screws, screw is all provided with aperture and communicates with the endoporus of the lower filling head of lid, and being provided with step hole to place sealing gasket, left rear side screw installs filling valve, right lateral side screw installs recovery valve, screw above installs vacuum pumping valve.Three lower filling machine head linearly equidistant arrangement of lid, the pitch entering tank screw rod that the spacing under adjacent cover between filling machine head equals four times.

Described filling valve comprises sealing gasket, nut one, joint, supporting ring, three seal rings, pressure ring, pad, valve body, and cap, spring, copper sheathing, nut two, spool, bulb joint, a supporting ring, three seal rings and a pressure ring form one group of combination seal, combination seal is arranged in the macropore of joint left end, joint is connected with valve body screw thread, pad pad is between pressure ring and valve body, spring housing is outside the left end of spool, nut two is connected with valve body screw thread and drives copper sheathing pressing spring, spool right-hand member conical surface under the elastic force effect of spring withstands sealing gasket, turn nut two changes the decrement that nut two and the relative axial position of valve body can change spring, at work, thus change the impacting force of the spool right-hand member conical surface and sealing gasket, (refrigerant) medium in the standby state in spool endoporus can not leak the inner chamber entering the lower filling head of lid, and cap is connected with valve body screw thread and tight with nut two, the endoporus of copper sheathing and the cylindrical Spielpassung of spool, the minor diameter cylindrical of copper sheathing left end and nut two Spielpassung, the endoporus Spielpassung of the cylindrical of spool right-hand member and the endoporus of valve body and joint, joint and valve body are screwed, the seal ring spreading of combination seal, the right-hand member periphery tensioner of endoporus and spool, the endoporus tensioner of periphery and joint left end, thus reach seal action, nut one is connected with joint screw thread, and joint is connected and press seal pad with filling head thread under lid, and nut one is also tight with the lower filling head of lid, the right-hand member cylindrical of spool is provided with one section of step, cylindrical is provided with four apertures and communicates with endoporus, bulb joint is threaded with spool and seals, bulb place is used for installation high-voltage corrugated flexible hose and is connected with weighing machine liquid outlet, time filling, weighing machine hydraulic cylinder piston presses down, (refrigerant) pressure medium exported increases, hydraulic pressure produces a thrust left to spool end, when this thrust reach threshold values be enough to overcome the active force of spring to spool time, the right-hand member conical surface of spool and sealing gasket leave, (refrigerant) medium in pipeline is able to from the hole of sealing gasket, enter the lower filling head inner chamber of lid and pours into inhalator jar.

Described recovery valve comprises sealing gasket, nut, joint, cutting ferrule directintermination joint, piston rod, supporting ring, three seal rings, pressure ring, pad, spring, piston, oil sealing, cylinder liner, bend cutting joints, a supporting ring, three seal rings and a pressure ring form one group of combination seal, combination seal is arranged in the macropore of joint left end, and joint is threaded with cylinder liner; The left end cylindrical of piston rod coordinates with the interporal lacuna of piston, and is screwed connection; The endoporus Spielpassung of outside piston and cylinder liner, has the oil sealing sealing in the groove that is arranged on piston between the two; Spring housing on the piston rod, both ends of the spring respectively with piston and pad contacts; The left end of cylinder liner is provided with tapped through hole, installs bend cutting joint; The cylindrical of joint is provided with tapped through hole and communicates with coupler bore, and cutting ferrule directintermination joint is connected with joint screw thread; Cutting ferrule directintermination joint is used for connecting hose and is connected with recovery compressor; Joint is connected and press seal pad with lid lower filling head thread, nut is connected with joint screw thread and with filling head under lid also tightly.Holding state lower cylinder cover left end has air pressure, and piston is in right end position under gas pressure, and the piston rod right-hand member conical surface and sealing gasket compress, and recovery channel is obstructed with the lower filling head inner chamber of lid.Cylinder liner left end decompression during recovery, piston is in left position under the elastic force effect of spring, and the piston rod right-hand member conical surface and sealing gasket leave, and recovery channel is connected with the lower filling head inner chamber of lid.

Described vacuum pumping valve comprises sealing gasket, connecting base, straight-insert joint, V-shaped seal ring, O-ring seals, spring, bend cutting joint, cylinder, piston, cylinder head, bend cutting joint, connecting base is threaded with cylinder, seal with O-ring seals, V-shaped seal ring is arranged on the taper hole place of connecting base, spring housing is on the left end bar of piston, spring right-hand member contacts with the endoporus step of cylinder, and left end is pressed on the end face of V-shaped seal ring; Cylinder head is threaded with cylinder, seals with O-ring seals; The cylindrical of piston and the endoporus Spielpassung of cylinder, seal with O-ring seals; Bend cutting joint is threaded with cylinder and connects with the left chamber of cylinder, and bend cutting joint and cylinder head are threaded and communicate with the right chamber of cylinder; Straight-insert joint and connecting base are threaded and communicate with the left side endoporus of connecting base, and straight-insert joint flexible pipe is connected with vacuum tank.

Under holding state, the right chamber air inlet of cylinder, the exhaust of left chamber, piston is pushed to the left side, and the conical surface of left end and sealing gasket compress, and vacuum tank does not communicate with the inner chamber of the lower filling head of lid; When vacuumizing, the left chamber air inlet of cylinder, the exhaust of right chamber, piston is pushed to the right, and the conical surface and the sealing gasket of left end leave, and vacuum tank is connected with the inner chamber of the lower filling head of lid.

Also comprise hot blast defrosting plant, described electric control box controls described hot blast defrosting plant, and described hot blast defrosting plant is used for defrosting to filling head,

Described hot blast defrosting plant comprises heat gun, supervisor, ball valve, joint, corrugated flexible hose, blowing head support, blowing head, the left end of supervisor is welded with plug, right-hand member is welded with joint, heat gun is plugged on the right-hand member of supervisor, supervisor being welded with support is screwed in frame, supervisor is welded with three joints side by side, coupler bore communicates with supervisor's endoporus, difference mounting ball valve on three joints, the erection joint of ball valve top, joint is installed corrugated flexible hose to be connected with blowing head, blowing head is fixedly mounted on blowing head support, the vertical rod screw thread of blowing head support is fixed in frame, blowing head is lifting on blowing head support, also the angle of blowing head blowing can be changed.Knob on the available heat gun of heating-up temperature height of heat gun regulates, and the wind speed of blowing can be selected with the wind gear switch on heat gun.The startup of heat gun is subject to PLC program control with closedown.Starting condition (filling how many times) and each heating time started of heat gun can be arranged on the touchscreen.

The utility model automatically can complete and enter tank, poppet-valve door to the inhalator jar putting refrigerant valve gap, vacuumizes, covers lower quantitative filling refrigerant (as R134a), compress valve and seal, reclaim (refrigerant), go out tank, three lower filling machine heads of lid can standard-sized sheet, also only can open one of them or two come filling.The utility model operation is convenient, reliable, can meet current market demands both domestic and external well.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model,

Fig. 2 is the left view of Fig. 1,

Fig. 3 is the plan view of Fig. 1,

Fig. 4 is the A-A sectional view in Fig. 1,

Fig. 5 is the partial top view in Fig. 1,

Fig. 6 is the plan view of the servo screw rod Linear feed mechanism in Fig. 1,

Fig. 7 a is the plan view of the side assist device in Fig. 1,

Fig. 7 b be side assist device in Fig. 1 with B-B sectional view,

Fig. 8 a is the front elevation of filling machine head under the lid in Fig. 1,

Fig. 8 b be under the lid in Fig. 1 filling machine head and left view,

Fig. 9 is the left pseudosection of filling machine head under the lid in Fig. 8,

Figure 10 is the partial enlarged drawing in Fig. 9,

Figure 11 is the whole-cutaway view of filling valve in the utility model,

Figure 12 is the whole-cutaway view of recovery valve in the utility model,

Figure 13 is the whole-cutaway view of vacuum pumping valve in the utility model,

Figure 14 is the front elevation of operating console in the utility model,

Figure 15 is the inside front elevation of electric control box in the utility model,

Figure 16 is the partial rear view of Fig. 1;

In figure, 1 is electric control box, 2 is operating consoles, 3 is conveyor lines, 4 is Over-The-Counters, 5 is the lower filling machine heads of lid, 6 is frames, 7 is suction boosters, 8 is liquid containers, 9 is weighing machines, 10 is side assist devices, 11 is hot blast defrosting plants, 12 is servo screw rod Linear feed mechanisms, 13 is conveyor line footing, 14 is conveyor line columns, 15 is conveyor line brackets, 16 is conveyor line side plates, 17 is conveyor line struts, 18 is protect to block support, 19 is conveyor belt, 20 is that conveyor line protects and blocks, 21 is into tank left skateboard, 22 is protect to block one, 23 is middle slide plates, 24 is protect to block three, 25 is tank guide plate component, 26 is the right slide plate of tank, 27 is protect to block two, 28 is supports one, 29 is left end bearing caps, 30 is screw rod end axles, 31 is into tank screw rod, 32 is belt shafts, 33 is right-hand member bearing caps, 34 is synchronous pulleys one, 35 is Timing Belts, 36 is proximity switches, 37 is switch brackets, 38 is belt wheel pressing plates, 39 is synchronous pulleys two, 40 is supports two, 41 is actuating motors, 42 is base plates, 43 is cover plates, 44 is stepper motors, 45 is base plates, 46 is synchronous pulleys three, 47 is Timing Belts, 48 is synchronous pulleys four, 49 is driving shafts, 50 is spacers, 51 is bearings, 52 is circlips, 53 is steps, 54 is ribs, 55 is flat keys, 56 is driving wheels, 57 is circlips, 58 is bearings, 59 is upper bearing brackets, 60 is struts, 61 is belts, 62 is tensioner ears, 63 is blocks, 64 is nuts, 65 is driven axles, 66 is circlips, 67 is bearings, 68 is driven wheels, 69 is fitting seats, 70 is push pedal seats, 71 is push pedals, 72 is push pedal axles, 73 is springs, 74 is packing rings, 75 is handwheels, 76 is large columns, 77 is posts, 78 is round nuts, 79 is supporting plates, 80 is balladeur trains, 81 is lock screws, 82 is the upper induction switches of upper cylinder, 83 is switch installation boards, 84 is guide plates, 85 is the upper induction switches of middle cylinder piston, 86 is sender plates, 87 is sentinel valves, 88 is switch brackets, 89 is the next induction switches of sealing cylinder piston, 90 is the next induction switches of upper cylinder piston, 91 is filling valves, 92 is recovery valves, 93 is vacuum pumping valves, 94 is the lower filling machine head base plates of lid, 95 is feather keys, 96 is nuts, 97 is copper sheathings, 98 is regulate screw mandrel, 99 is flat keys, 100 is upper cylinder lids, 101 is upper cylinders, 102 is upper cylinder pistons, 103 is one-way throttle valves, 104 is round nuts, 105 is middle cylinder head, 106 is middle cylinder pistons, 107 is middle cylinders, 108 is sealing cylinders, 109 is fast-discharge valves, 110 is sealing cylinder pistons, 111 is sealing cylinder piston rods, 112 is sealing cylinder lids, 113 is connecting bodys, 114 is springs, 115 is spring guides, 116 is filling head springs, 117 is guide rings, 118 is axis of cone, 119 is stop screws, 120 is filling heads, 121 is guide rings, 122 is glands, 123 is seal bodies, 124 is sealing pawls, 125 is positioning rings, 126 is collars, 127 is sealed pressing sleeves, 128 is adjustment sleeves, 129 is filling head seal rings, 130 is seal ring collars, 131 is inhale valve sealing ring, 132 is sealing gaskets, 133 is guiding trim rings, 134 is tank shoulder plain cushions, 135 is sealing gaskets, 136 is nuts one, 137 is joints, 138 is supporting rings, 139 is seal rings, 140 is pressure rings, 141 is pads, 142 is valve bodies, 143 are and cap, 144 is springs, 145 is copper sheathings, 146 is nuts two, 147 is spools, 148 is bulb joints, 149 is sealing gaskets, 150 is nuts, 151 is joints, 152 is cutting ferrule directintermination joints, 153 is piston rods, 154 is supporting rings, 155 is seal rings, 156 is pressure rings, 157 is pads, 158 is springs, 159 is pistons, 160 is oil sealings, 161 is cylinder liner, 162 is bend cutting joints, 163 is sealing gaskets, 164 is connecting bases, 165 is straight-insert joints, 166 is V-shaped seal rings, 167 is O-ring seals, 168 is springs, 169 is bend cutting joints, 170 is cylinders, 171 is O-ring seals, 172 is O-ring seals, 173 is pistons, 174 is cylinder head, 175 is bend cutting joints, 176 is Direct boxes, 177 is touch screens, 178 is start buttons, 179 is stop buttons, 180 is reset button, 181 is program emergency stop buttons, 182 is servo emergency stop buttons, 183 is columns, 184 is tripod underframe, 185 is circuit breakers, 186 is sockets, 187 is relays, 188 is PLC, 189 is PLC output modules, 190 is electronic boxs, 191 is appliance mounting panels, 192 is step actuators, 193 is power boxs, 194 is wire casings, 195 is connecting terminal blocks, 196 is servoamplifiers, 197 is regenerative braking resistance, 198 is heat guns, 199 is supervisors, 200 is ball valves, 201 is joints, 202 is corrugated flexible hoses, 203 is blowing head supports, 204 is blowing heads.

Embodiment

As Figure 1-3, the utility model is primarily of filling machine head 5, three groups of suction boosters 7, liquid container 8, three Sets of Measurement machine 9, hot blast defrosting plant 11, the composition such as solenoid valve group and electrical interconnecting box, air distributing device under the lid of frame 6, the Over-The-Counter 4 be located in frame, conveyor line 3 through frame, electric control box 1, operating console 2, the Jin Guan mechanism (comprising servo screw rod Linear feed mechanism 12 and side assist device 10) be located in frame 6, three groups of linearly equidistant arrangement.

As shown in Figure 4, conveyor line 3 comprises conveyor line footing 13, conveyor line column 14, conveyor line bracket 15, conveyor line side plate 16, conveyor line strut 17, protect block support 18, conveyor belt 19, conveyor line protect block 20, driving mechanism, conveyor belt adopts flat-top chain sheet conveying belt, protect and block support 18 and be fixed on conveyor line side plate 16, conveyor line protects and blocks 20 and be fixed on to protect and block on support 18, conveyor line protects the spacing of blocking and can block support 18 and regulate by protecting, and conveyor line side plate 16 is fixed on conveyor line bracket 15.Conveyor line bracket 15 is connected with conveyor line column 14, and column lower end is provided with conveyor line footing 13.

As shown in Figure 5, Jin Guan mechanism comprises side assist device 10, servo screw rod Linear feed mechanism 12, enter tank left skateboard 21, protect and block 1, middle slide plate 23, protect and block 3 24, go out tank guide plate component 25, go out the right slide plate 26 of tank, protect and block 2 27, entering tank left skateboard 21 is installed on the table top of frame 6, left front face is connected with conveyor line side plate 16, upper plane is with plane on carrier bar and cover the upper plane of the base plate 94 of filling machine head 5 equal, side assist device 10 is arranged on on tank left skateboard 21, there is a certain amount of movable regulation range, middle slide plate is arranged on frame 6 table top, upper plane is equal with the upper plane of the base plate 94 of the lower filling machine head 5 of lid, protect and block 3 24 and be arranged on the table top of frame 6, there is a certain amount of movable regulation range.Going out the right slide plate 26 of tank is installed on the table top of frame 6, and the right leading flank is connected with conveyor line side plate 16, and upper plane is with plane on carrier bar and cover the upper plane of the base plate 94 of filling machine head 5 equal; Going out tank guide plate component 25 is arranged on out on the right slide plate 26 of tank, there is a certain amount of movable regulation range, servo screw rod Linear feed mechanism 12 is installed on the front table top of frame 6, there is a certain amount of movable regulation range, protect on the support 1 that blocks and be arranged on servo screw rod Linear feed mechanism 12 on the right of in the of one 22, left end and conveyor line protect to block and are connected, and protect to block 2 27 left sides and be arranged on the support 2 40 of servo screw rod Linear feed mechanism 12, and right-hand member and conveyor line protect to block and be connected.

As shown in Figure 6, when servo screw rod Linear feed mechanism removes case, servo screw rod Linear feed mechanism 12 comprises support 1, left end bearing cap 29, screw rod end axle 30, enter tank screw rod 31, belt shaft 32, right-hand member bearing cap 33, synchronous pulley 1, Timing Belt 35, proximity switch 36, switch bracket 37, belt wheel pressing plate 38, synchronous pulley 2 39, support 2 40, actuating motor 41, base plate 42, support 1 is connected with screw with base plate 42 with support 2 40, support one, support two is respectively equipped with bearing hole, and bearing is installed, support one, the both sides of the bearing hole of support two install one group of left end bearing cap 29 respectively, right-hand member bearing cap 33, the left end entering tank screw rod is provided with screw rod end axle 30, right-hand member is provided with belt shaft 32, screw rod end axle 30 is connected with the bearing inner race be arranged in support 1 bearing hole, belt shaft is connected with the bearing inner race be arranged in support 2 40 bearing hole, belt shaft 32 is installed synchronous pulley 1.Timing Belt 35 is arranged on synchronous pulley 1 and synchronous pulley 2 39, and synchronous pulley 2 39 is installed on the motor shaft of actuating motor 41, and by Flat dey joint, belt wheel pressing plate 38 is arranged on motor shaft with screw and compresses synchronous pulley 2 39.Actuating motor 41 screw is arranged on support 2 40, has a certain amount of movable regulation range.The motor shaft of actuating motor 41 rotates and can drive into tank bolt rotary.Proximity switch 36 is arranged on switch bracket 37, switch bracket 37 screw is installed on the side of support 2 40, the periphery of belt shaft 32 is provided with sensing hole, enter tank screw rod 31 circumference when turning near desirable initial position, sensing hole on the probe end face energy alignment pulleys axle periphery of proximity switch 36, enter the electrical signal of proximity switch 36 when the on-stream proximity switch 36 of tank screw rod 31 aligns sensing hole to change, determine the mechanical origin into tank screw rod with this.

As shown in Fig. 7 a-7b, side assist device 10 comprises cover plate 43, stepper motor 44, base plate 45, synchronous pulley 3 46, Timing Belt 47, synchronous pulley 4 48, driving shaft 49, spacer 50, bearing 51, circlip 52, step 53, rib 54, flat key 55, driving wheel 56, circlip 57, bearing 58, upper bearing bracket 59, strut 60, belt 61, tensioner ear 62, block 63, nut 64, driven axle 65, circlip 66, bearing 67, driven wheel 68, fitting seat 69, push pedal seat 70, push pedal 71, push pedal axle 72, spring 73, cover plate 43 is connected with screw by two struts 60 with base plate 45, stepper motor 44 screw is fixed on base plate 45, the motor shaft of stepper motor 44 is installed synchronous pulley 3 46, base plate has kidney slot, stepper motor 44 has certain left and right adjusting scope in order to regulate the tightness of Timing Belt 47, and driving wheel 56 is arranged on flat key 55 transmitting torque on driving shaft 49, driving wheel upper, under respectively have a rib 54, limit the axial position of driving wheel on driving shaft at the in-built circlip for shaft 57 of the circlip groove of driving shaft 49, the upper/lower terminal of driving shaft 49 respectively establishes a bearing position, and bottom end bearing position is installed bearing 51, and be connected with step 53 by bearing 51, step 53 is screwed on base plate 45.Upper end bearing position is provided with bearing 58 and is connected with upper bearing bracket 59 by bearing 58, and upper bearing bracket is screwed on cover plate 43.The lower end of driving shaft 49 is installed synchronous pulley 4 48 and is fixed in order to transmitting torque on driving shaft 49 with lock screw, and the lower end screw of driving shaft 49 is provided with pressing plate with the axial position of limits synchronization belt wheel four.Driven wheel 68 is connected with driven axle 65 by bearing 67 and circlip for hole 66, driven wheel 68 freely can rotate relative to driven axle, with belt 61 transmission between driving wheel 56 and driven wheel 68, driven axle 65 upper, lower two ends are slidably connected with tensioner ear 62 respectively, the both sides, front and back of tensioner ear 62 are provided with chute, cover plate and base plate are provided with corresponding kidney slot, two tensioner ears 62 are arranged on the kidney slot of cover plate 43 and base plate 45 respectively, tensioner ear 62 can horizontally slip on cover plate 43 or base plate 45, the right-hand member of tensioner ear 62 is provided with screw rod, the screw rod that block 63 is enclosed within tensioner ear 62 is buckled in the right-hand member of cover plate 43 or base plate 45, the right position of the adjustable tensioner ear 62 of adjusting nut 64 is to regulate the tightness of belt 61.Fitting seat 69 is directly installed on main frame platen, the left side of base plate 45 and right back portion respectively establish a kidney slot, with screw and packing ring, the fitting seat 69 on base plate and rack platen is fixed by the kidney slot through the right back portion of base plate 45, base plate 45 with enter tank left skateboard 21 under the kidney slot of base plate 45 left part, add a packing ring 74, and fixed by screw, a certain amount of adjustment can be done along the kidney slot direction of base plate 45 in the mounting point of whole side assist device and frame.Push pedal 71 is provided with two push pedal axles 72, two push pedal seats 70 are screwed on base plate 45, two push pedal axles 72 are inserted in the hole of two push pedal seats 70 respectively, push pedal axle fills two and tight nut plays axial limiting effect, between push pedal 45 on push pedal axle 72 and push pedal seat 70, spring 73 is housed, push pedal 71 can slide axially along push pedal axle 72, and the tensioner thrust of giving belt 61 certain under the effect of spring 73.

As Fig. 8 a, shown in 8b-10, the lower filling machine head of lid comprises handwheel 75, large column 76, post 77, round nut 78, supporting plate 79, balladeur train 80, lock screw 81, the upper induction switch 82 of upper cylinder piston, switch installation board 83, guide plate 84, the upper induction switch 85 of middle cylinder piston, sender plate 86, sentinel valve 87, switch bracket 88, the next induction switch 89 of sealing cylinder piston, the next induction switch 90 of upper cylinder piston, filling valve 91, recovery valve 92, vacuum pumping valve 93, the lower filling machine head base plate 94 of lid, feather key 95, nut 96, copper sheathing 97, regulate screw mandrel 98, flat key 99, upper cylinder lid 100, upper cylinder 101, upper cylinder piston 102, one-way throttle valve 103, round nut 104, middle cylinder head 105, middle cylinder piston 106, middle cylinder 107, sealing cylinder 108, fast-discharge valve 109, sealing cylinder piston 110, sealing cylinder piston rod 111, sealing cylinder lid 112, connecting body 113, spring 114, spring guide 115, filling head spring 116, guide ring 117, the axis of cone 118, stop screw 119, filling 120, guide ring 121, gland 122, seal body 123, sealing pawl 124, positioning ring 125, collar 126, sealed pressing sleeve 127, adjustment sleeve 128, filling head seal ring 129, seal ring collar 130, inhale valve sealing ring 131, sealing gasket 132, guiding trim ring 133, tank shoulder plain cushion 134, large column 76 and post 77 are vertical to be respectively fixedly connected on the lower filling machine head base plate 94 of lid, and supporting plate 79 is fixed on balladeur train 80, and balladeur train 80 is cuboid, on have through hole, through hole studs with two copper sheathings 97, and trailing flank is provided with kidney slot, and left surface is provided with two locking screws, copper sheathing 97 hole and large column 76 Spielpassung, the built-in kidney-shaped feather key 95 of kidney slot, feather key 95 automatically can slide in kidney slot, and feather key 95 is screwed with nut 96 and is connected,

Supporting plate 79 is provided with three holes, wherein two holes respectively with the cylindrical Spielpassung of large column 76 and post 77, to be spun on post and tight supporting plate 79 with two round nuts 78; The hole of supporting plate 79 front end is cut open along center line, and is provided with two pairs of screws, for installing and locking upper cylinder 101.Post 77 is tubulose, large column 76 is hollow structure, afterwards along being provided with kidney slot, feather key 95 can slide up and down in kidney slot, large column 76 upper/lower terminal respectively establishes a copper sheathing, regulates screw mandrel 98 to be installed in large column 76, is spun on nut 96, coordinate with the copper sheathing at large column 76 two ends simultaneously, free to rotate; Handwheel 75 is fixedly connected on the upper end regulating screw mandrel 98, with flat key 99 transmitting torque between handwheel 75 and adjustment screw mandrel 98; Upper cylinder lid 100, upper cylinder 101, upper cylinder piston 102 and Sealing composition upper cylinder is installed on supporting plate 79, cylinder in middle cylinder head 105, middle cylinder 107, middle cylinder piston 106 and Sealing composition, middle cylinder head 105 and upper cylinder piston 102 are with being threaded and using round nut 104 also tight.Sealing cylinder 108, sealing cylinder piston 110, sealing cylinder piston rod 111, sealing cylinder lid 112 and Sealing composition sealing cylinder, sealing cylinder 108 and middle cylinder piston 106 are with to be threaded and with round nut and tightly; Sealing cylinder lid 112 is provided with sentinel valve 87, sender plate 86, the next induction switch 89 of sealing cylinder piston are arranged on switch bracket 88, when sealing cylinder piston 110 comes downwards to sealing cylinder 108 lower limit, by the valve stem depressions of sentinel valve 87, the next induction switch 89 of sealing cylinder piston has induced signal to output to PLC, when sealing cylinder piston 110 is reset to sealing cylinder 108 upper limit, the next induction switch 89 of sealing cylinder piston does not have induced signal to export; The axis of cone 118 is threaded with sealing cylinder piston rod 111, spring 114 is housed in order to the tensioner axis of cone 118 in sealing cylinder piston rod 111 and between the axis of cone 118, the axis of cone 118 lower end is provided with male cone (strobilus masculinus), inner hexagonal hole is provided with in the endoporus of lower end, the useful inner hexagon spanner turn axis of cone 118 changes the axially upper/lower positions of the axis of cone 118 and sealing cylinder piston rod 111, thus the size that when sealing cylinder piston 110 is depressed when changing sealing, sealing pawl 124 opens, be achieved the adjustment of the sealing diameter of valve gap; Connecting body 113 is connected with screw with sealing cylinder lid 112, and connecting body 113 endoporus is provided with two grooves, and groove plays the leading role to sealing cylinder piston rod 111 periphery built with guide ring 117.Seal body 123 to be threaded in below connecting body 113 and to compress gland 122.The large periphery of seal body 123 is provided with a groove, and in groove, installation guide ring 121 plays the leading role to lower filling 120 endoporus of lid.Sealing pawl 124 is solid of rotation, eight equal parts is cutd open into along longitudinal section equalization after overall processing, combine by original ordinal position, positioning ring 125 is placed in the groove of sealing pawl, collar 126 is the ring bodies cutting opening made with elastic material, be stuck in the periphery of sealing pawl 124, be placed in seal body 123 step hole be positioned at below gland 122.The lower end of sealing pawl 124 is provided with inner conical surface.Seal body 123 lower end endoporus is provided with internal thread, adjustment sleeve 128 is installed, inhaling valve seals 131 is enclosed within adjustment sleeve 128, and suction valve seals 131 is fixed on adjustment sleeve 128 by the outside that seal ring collar 130 is stuck in adjustment sleeve 128, seals between seal body 123 and adjustment sleeve 128 with O-ring seals.The lower end surface of adjustment sleeve 128 is provided with two symmetrical apertures, and available dedicated spanner turn adjustment sleeve 128 changes the relative position up and down between adjustment sleeve 128 and sealing pawl 124, thus regulates the sealing degree of depth.Sealed pressing sleeve 127 is threaded with lower filling 120 of lid, and under the lid below sealed pressing sleeve 127, the groove of filling 120 is built with filling head seal ring 129.Seal with O-ring seals between sealed pressing sleeve 127 and lower filling 120 of lid.Lower filling 120 of lid is slidably connected with seal body 123, seal with O-ring seals between seal body 123 and sealed pressing sleeve 127, seal with filling head seal ring 129 between seal body 123 and lower filling 120 of lid, cover lower filling 120 tops and be provided with a radial screw, mounting limit screw 119 catches on seal body 123.The upper-end surface that lid is lower filling 120 is provided with the hole of four equal distribution outside endoporus, filling head spring 116 is placed in this hole, spring guide 115 threaded upper ends is connected to sealing cylinder lid 112 lower end, and spring guide 115 lower end is inserted in the hole of filling head spring 116.Tank shoulder plain cushion 134 is contained in the step hole of guiding trim ring 133, and guiding trim ring 133 is threaded in the lower end of lower filling 120 of lid, tank is takeed on plain cushion 134 and compresses with the end face of lower filling 120 of lid; The bottom that lid is lower filling 120 is provided with three screws, screw is all provided with aperture and communicates with the endoporus of lower filling 120 of lid, and being provided with step hole to place sealing gasket 132, left rear side screw installs filling valve 91, right lateral side screw installs recovery valve 92, screw above installs vacuum pumping valve 93.

As shown in figure 11, filling valve 91 comprises sealing gasket 135, nut 1, joint 137, supporting ring 138, seal ring 139, pressure ring 140, pad 141, valve body 142 cap 143, spring 144, copper sheathing 145, nut 2 146, spool 147, bulb joint 148.A supporting ring 138 of teflon material and three seal rings 139 and a pressure ring 140 form one group of combination seal, combination seal is arranged in the macropore of joint 137 left end, joint 137 is threaded with valve body 142, pad 141 pads between pressure ring 140 and valve body 142, spring 144 is enclosed within outside the left end of spool 147, nut 2 146 is threaded with valve body 142 and drives copper sheathing 145 pressing spring 144, spool 147 right-hand member conical surface under the elastic force effect of spring 144 withstands sealing gasket 135, turn nut 2 146 change nut two and the relative axial position of valve body 142 can change the decrement of spring 144, thus change the impacting force of the spool 147 right-hand member conical surface and sealing gasket 135, (refrigerant) medium in the standby state in spool 147 endoporus can not leak the inner chamber entering lower filling 120 of lid, and cap 143 is threaded with valve body 142 and tight with nut 2 146, the endoporus of copper sheathing 145 and the cylindrical Spielpassung of spool 147, the minor diameter cylindrical of copper sheathing left end and nut 146 Spielpassung.The endoporus Spielpassung of the cylindrical of spool 147 right-hand member and the endoporus of valve body 142 and joint 137, joint 137 and valve body 142 are screwed, seal ring 139 spreading of the combination seal of teflon, the right-hand member periphery tensioner of endoporus and spool 147, the endoporus tensioner of periphery and joint 137 left end, thus reach seal action.Nut 1 is threaded with joint 137, and joint 137 and filling the 120 also press seal pad 135 that is threaded under lid, nut 1 and the lower filling head of lid are also tightly.The right-hand member cylindrical of spool 147 is provided with one section of step, cylindrical is provided with four apertures and communicates with endoporus, bulb joint 148 is threaded with spool 147 and seals, bulb place is used for installation high-voltage corrugated flexible hose and is connected with weighing machine liquid outlet, time filling, weighing machine hydraulic cylinder piston presses down, (refrigerant) pressure medium exported increases, hydraulic pressure produces a thrust left to spool 147 end face, when this thrust reach threshold values be enough to the active force overcoming spring 144 pairs of spools 147 time, the right-hand member conical surface and the sealing gasket 135 of spool 147 leave, (refrigerant) medium in pipeline is able to from the hole of sealing gasket 135, enter lower filling 120 inner chambers of lid and pours into inhalator jar.

As shown in figure 12, recovery valve 92 comprises sealing gasket 149, nut 150, joint 151, cutting ferrule directintermination joint 152, piston rod 153, supporting ring 154, seal ring 155, pressure ring 156, pad 157, spring 158, piston 159, oil sealing 160, cylinder liner 161, bend cutting joint 162, a supporting ring 154 of teflon material and three seal rings 155 and a pressure ring 156 form one group of combination seal, combination seal is arranged in the macropore of joint 151 left end, and joint 151 is threaded with cylinder liner 161; The left end cylindrical of piston rod 153 coordinates with the interporal lacuna of piston 159, and is screwed connection; The endoporus Spielpassung of piston 159 cylindrical and cylinder liner 161, has the oil sealing 160 in the groove that is arranged on piston 159 to seal between the two; Spring 158 is enclosed within piston rod 153, and spring 158 two ends contact with pad 157 with piston 159 respectively; The left end of cylinder liner 161 is provided with tapped through hole, installs bend cutting joint 162.The cylindrical of joint 151 is provided with tapped through hole and communicates with joint 151 endoporus, and cutting ferrule directintermination joint 152 is threaded with joint 151; Cutting ferrule directintermination joint 152 is connected with recovery compressor for connecting hose.Joint 151 and lower filling 120 of lid are threaded and press seal pad 149, and nut 150 is threaded with joint 151 and with lid lower filling 120 and tightly; Holding state lower cylinder overlaps 161 left ends air pressure, and piston 159 is in right end position under gas pressure, and the piston rod 153 right-hand member conical surface and sealing gasket 149 compress, and recovery channel is obstructed with lower filling 120 inner chambers of lid.Cylinder liner 161 left end decompression during recovery, piston 159 is in left position under the elastic force effect of spring 158, and the piston rod 153 right-hand member conical surface and sealing gasket 149 leave, and recovery channel is connected with lower filling 120 inner chambers of lid.

As shown in figure 13, vacuum pumping valve 93 comprises sealing gasket 163, connecting base 164, straight-insert joint 165, V-shaped seal ring 166, O-ring seals 167, spring 168, bend cutting joint 169, cylinder 170, O-ring seals 171, O-ring seals 172, piston 173, cylinder head 174, bend cutting joint 175, connecting base 164 is threaded with cylinder 170, seal with O-ring seals 167, V-shaped seal ring 166 is arranged on the taper hole place of connecting base 164, spring 168 is enclosed within the left end bar of piston 173, spring 168 right-hand member contacts with the endoporus step of cylinder 170, left end is pressed on the end face of V-shaped seal ring 166.Cylinder head 174 is threaded with cylinder 170, seals with O-ring seals 171; The cylindrical of piston 173 and the endoporus Spielpassung of cylinder 170, seal with O-ring seals 172; Bend cutting joint 169 is threaded with cylinder 170 and connects with the left chamber of cylinder, and bend cutting joint 175 and cylinder head 174 are threaded and communicate with the right chamber of cylinder.Straight-insert joint 165 and connecting base 164 are threaded and communicate with the left side endoporus of connecting base 164, and straight-insert joint 165 is connected with vacuum tank with flexible pipe.Under holding state, the right chamber air inlet of cylinder, the exhaust of left chamber, piston 173 is pushed to the left side, and the conical surface and the sealing gasket 163 of left end compress, and vacuum tank does not communicate with the inner chamber of the lower filling head of lid.When vacuumizing, the left chamber air inlet of cylinder, the exhaust of right chamber, piston 173 is pushed to the right, and the conical surface and the sealing gasket 163 of left end leave, and vacuum tank is connected with the inner chamber of the lower filling head of lid.

As shown in figure 14, operating console 2 comprises Direct box 176, touch screen 177, start button 178, stop button 179, reset button 180, program emergency stop button 181, servo emergency stop button 182, column 183, tripod underframe 184, column 183 is Stainless Steel Tubes, one end and Direct box 176 are fixed, one end is arranged on tripod underframe 184, Direct box 176 has hole and communicates with column 183, the wire of touch screen 177 upper conductor and datawire and each button through plastic-aluminum penetration pipe from column 183 through being connected to electric control box 1.On touch screen, picture first edits with special-purpose software on computers and downloads to touch screen again, and touch screen is provided with key frame, I/O Interface, operating mode arrange interface, optimum configurations interface, manually-operable interface, semi-automatic operation interface, semi-automatic operation interface, flow monitoring interface.

As shown in figure 15, electric control box 1 comprises circuit breaker 185, socket 186, relay 187, PLC188, PLC output module 189, electronic box 190, appliance mounting panel 191, step actuator 192, power box 193, wire casing 194, connecting terminal block 195, servoamplifier 196, regenerative braking resistance 197, the bottom of electronic box is connected to two plastic-aluminum flexible pipes and is connected with frame 6 with operating console 2 respectively, and the wire of all input output is connected with PLC and PLC output module through plastic-aluminum flexible pipe with datawire.First write PLC program with special programming software on computers, then with under datawire by PLC, set the parameters of servoamplifier, step actuator selected with toggle switch differential precision and the electric current of stepper motor.

As shown in figure 16, hot blast defrosting plant 11 comprises heat gun 198, supervisor 199, ball valve 200, joint 201, corrugated flexible hose 202, blowing head support 203, blowing 204, be responsible for as Stainless Steel Tube is made, left end is welded with plug, right-hand member is welded with joint, heat gun 198 is plugged on the right-hand member of supervisor 199, supervisor being welded with support is screwed in frame 6, supervisor is welded with three joints side by side, coupler bore communicates with supervisor's endoporus, difference mounting ball valve 200 on three joints, ball valve top erection joint 201, joint 201 is installed corrugated flexible hose 202 to be connected with blowing 205, blowing 204 is fixedly mounted on blowing head support 203, the vertical rod screw thread of blowing head support 203 is fixed in frame 6, blowing 204 is lifting on blowing head support, also the angle of blowing head blowing can be changed.

In the lid retrofilling process of each refrigerant, owing to there being coolant media release in a small amount, the temperature of the lower filling head of lid and filling valve, recovery valve can except low, when humidity ratio in air is larger, under lid filling head lower end (especially takeing on plain cushion place at the tank touched with inhalator jar tank shoulder grafting) and filling valve, the frosting of recovery valve appearance even icing.Frosting is many, can affect filling normal operation.After the effect of hot blast defrosting plant is every filling N tank, automatically stop after automatically starting the heat gun M time.The hot blast that heat gun produces blows to filling head place through pipeline, eliminates frosting.

working principle of the present utility model is:the utility model both can be arranged to the whole mode of operation of three heads, also can be arranged to a head job or two head mode of operations, and also can be arranged to that three heads do not work is into tank pattern.Illustrate for the whole mode of operation of three heads below.Suppose that the lower filling machine head of three lids is from left to right respectively 1#, 2#, 3# (namely in Fig. 5, No. 1 station, No. 2 stations and No. 3 stations).Start after automatically running, first program performs and detects station with or without inhalator jar program step.If the station below three lower filling machine heads of lid does not all have inhalator jar, then actuating motor rotates and drives into tank bolt rotary three circle, inhalator jar slides the distance of 3 times of pitch from left to right on gliding plate, meanwhile the stepper motor of side assist device rotates and drives belt synchronous axial system to help inhalator jar to enter into tank screw rod, avoids card tank.Feeding terminates rear program and again enters detection station with or without inhalator jar program step.Station is failure to actuate without filling machine head under the lid of tank.Station has cylinder piston 106 in the middle cylinder action of filling machine head 5 under the lid of tank to press down, drive sealing cylinder 108 and descending with lower part, in the process, tank shoulder plain cushion 134 first takes on peripheral contact with the tank of inhalator jar, middle cylinder piston 106 continues descending latter filling 120 and keeps motionless, seal body 123 and filling 120 relative slidings continue descending, until the lower end surface of adjustment sleeve 128 is pressed onto the end face of valve gap.Now spring is compressed, and inhales valve sealing ring 131 and is adjacent to the outer side surface of valve gap and seals, in vacuum pipe and Figure 10 on the right side of filling 120 below joint connect, valve gap is sucked.The next induction switch 90 of upper cylinder piston and sender plate 86 close to and connect, program enters next step.Cylinder head 105 and up with lower part in the up drive of upper cylinder action upper cylinder piston 102, mentions valve gap when seal body 123 is up.Up put in place after, because stroke ratio is shorter, tank shoulder plain cushion 134 still take on peripheral contact with the tank of inhalator jar and keep excellent sealing.The upper induction switch 82 of upper cylinder is connected due to the close of guide plate 84, and program performs next step.Vacuum pumping valve action, in Figure 13, piston 173 moves to right, and vacuum pipe is connected below straight-insert joint 165, filling 120 and valve gap with in inhalator jar tank.In inhalator jar tank, air is pumped.Obtain an electrical signal when reaching the preset pressure value on vacuum pressure switch when degree of vacuum, program performs next step.Vacuum pumping valve action resets, and in Figure 13, piston 173 moves to left, and vacuum pumping valve is closed.Then the solenoid valve controlling weighing machine 9 obtains electric commutation, the large upper chamber of air cylinder air inlet of weighing machine 9, cavity of resorption is vented, large cylinder piston drives the descent of piston of oil hydraulic cylinder through piston rod, (refrigerant) medium (as R134a) in oil hydraulic cylinder cavity of resorption is forced out spool 147 endoporus arriving filling valve 91 in Figure 11 through high pressure corrugated flexible hose, and spool 147 is pushed open certain distance left and entered filling 120 and inject in inhalator jar from valve gap by the elastic force overcoming spring 144.During the large cylinder piston arrives lower limit of weighing machine 9, filling end, the sentinel valve action that weighing machine 9 is installed obtains an electrical signal, and program performs next step.Control the solenoid valve dead electricity commutation of weighing machine 9, the large lower chamber of air cylinder air inlet of weighing machine 9, epicoele is vented, and large cylinder piston drives the piston reset of oil hydraulic cylinder up through piston rod.Control the solenoid valve dead electricity commutation of upper cylinder, upper cylinder piston 102 is descending simultaneously.Meanwhile (refrigerant) medium (as R134a) can be input to the epicoele of the oil hydraulic cylinder of weighing machine 9 by suction booster automatically, and the unidirectional valve opening on hydraulic cylinder piston enters cavity of resorption.Spool 147 top tight sealing pad 135 under the elastic force effect of spring 144 of filling valve 91.Upper cylinder piston 102 is descending put in place after, valve gap is pressed on tank mouth, the next induction switch 90 of upper cylinder piston and sender plate 86 close to and again connect, program enters next step.The solenoid valve controlling sealing cylinder obtains electric commutation, and sealing cylinder piston 110 comes downwards to lower limit, and sealing cylinder piston 110 drives the axis of cone to be about to seal pawl 124 for 118 times and outwards struts, and valve gap is tamping on inhalator jar.The solenoid valve simultaneously controlling recovery valve 92 obtains electric commutation, pressurized air in cylinder liner 161 in Figure 12 is drained, piston 159 moves to left under the elastic force effect of spring 158, piston rod 153 sealing gasket 149 leaves, in filling 120 Seal cages, not being recovered compressor through the endoporus of recovery valve 92 sealing gasket 149 to cutting ferrule directintermination joint 152 by (refrigerant) medium of pouring into aerosol and taking away of valve gap periphery.The valve rod of sentinel valve 87 extrudes after coming downwards to lower limit by sealing cylinder piston 110, the next induction switch 89 of sealing cylinder piston is connected, control the solenoid valve dead electricity commutation of sealing cylinder, sealing cylinder piston 110 goes upward to upper limit, sealing cylinder piston 110 drives the axis of cone 118 up, sealing pawl 124 inward collapsible under the elastic force effect of collar 126 resets, and is performed next step through the recovery time of setting and program after the pawl time of receiving.The solenoid valve dead electricity commutation of cylinder in control, horizontal reset on middle cylinder piston 106, the upper induction switch 85 of middle cylinder piston is because of the close connection of sealing cylinder 108, PLC obtains an electrical signal, and after the upper induction switch 85 of cylinder piston in the lower filling machine head of 1#, 2#, 3# tri-lid is all connected, program performs next step.Actuating motor rotates and drives into tank bolt rotary three circle, and inhalator jar slides the distance of 3 times of pitch from left to right on gliding plate, and meanwhile the stepper motor of side assist device rotates and drives belt synchronous axial system to help aerosol cylinder to enter into tank screw rod, avoids card tank.If feeding is not shut down after terminating, be still in automatic running state then program enter next filling circulation; If pressed stop button 179(or clicked stopping membrane keyboard on the touchscreen) exit automatic running state, then equipment is out of service.

Claims

1. filling machine under full-automatic three straight line type lids, it is characterized in that, comprise frame, be located at the Over-The-Counter in frame, through the conveyor line of frame, electric control box, operating console, be located at the Jin Guan mechanism in frame, filling machine head under the lid of three groups of linearly equidistant arrangement, three groups of suction boosters, three liquid containers and three Sets of Measurement machines, described conveyor line is used for the conveying of inhalator jar, filling machine head under described lid, suction booster, liquid container and weighing machine one_to_one corresponding, described Jin Guan mechanism to be used for inhalator jar to transport under described lid immediately below filling machine head, described operating console connects described electric control box, described electric control box comprises PLC, and for controlling filling machine head under described lid.

2. filling machine under full-automatic three straight line type lids according to claim 1, it is characterized in that, described Jin Guan mechanism comprises side assist device, servo screw rod Linear feed mechanism, enter tank left skateboard, protect and block one, middle slide plate, protect and block three, go out tank guide plate component, go out the right slide plate of tank and protect and block two, entering tank left skateboard is installed on the table top of frame, side assist device is arranged on on tank left skateboard, middle slide plate is arranged on rack table, protect and block three and be arranged on the table top of frame, going out the right slide plate of tank is installed on the table top of frame, going out tank guide plate component is arranged on out on the right slide plate of tank, servo screw rod Linear feed mechanism is installed on the front table top of frame, protect and block one and be arranged on servo screw rod Linear feed mechanism, protect and block two left sides and be arranged on servo screw rod Linear feed mechanism,

3. filling machine under full-automatic three straight line type lids according to claim 2, it is characterized in that, described servo screw rod Linear feed mechanism comprises support one, screw rod end axle, enter tank screw rod, belt shaft, synchronous pulley one, Timing Belt, proximity switch, switch bracket, synchronous pulley two, support two, actuating motor and base plate, support one, support two is connected with base plate screw, support one, support two is respectively equipped with bearing hole, and is provided with bearing, support one, the both sides of the bearing hole of support two install left end bearing cap respectively, right-hand member bearing cap, the left end entering tank screw rod is provided with screw rod end axle, right-hand member is provided with belt shaft, screw rod end axle is connected with the bearing inner race be arranged in support one bearing hole, belt shaft is connected with the bearing inner race be arranged in support two bearing hole, belt shaft is installed synchronous pulley one, Timing Belt is arranged on synchronous pulley one and synchronous pulley two, synchronous pulley two is installed on the motor shaft of actuating motor, actuating motor screw is arranged on support two, and the motor shaft of actuating motor rotates and can drive into tank bolt rotary, proximity switch is arranged on switch bracket, and switch bracket screw is installed on the side of support two, and the periphery of belt shaft is provided with sensing hole, and described belt shaft action makes the corresponding described proximity switch of sensing hole.

4. filling machine under full-automatic three straight line type lids according to claim 2, it is characterized in that, described side assist device comprises cover plate, stepper motor, base plate, synchronous pulley three, Timing Belt, synchronous pulley four, driving shaft, spacer, bearing, circlip, step, rib, flat key, driving wheel, circlip, bearing, upper bearing bracket, strut, belt, tensioner ear, block, nut, driven axle, circlip, bearing, driven wheel, fitting seat, push pedal seat, push pedal, push pedal axle, spring

Cover plate is be arranged in parallel with base plate and is connected by two struts, and stepper motor is fixed on base plate, the motor shaft of stepper motor is installed synchronous pulley three;

Driven wheel connects with driven axle and freely can rotate relative to driven axle, and by belt transmission between driving wheel and driven wheel, driven axle to be slidably connected between described cover plate and base plate and degree of tightness for controlling belt;

5. filling machine under full-automatic three straight line type lids according to claim 1, it is characterized in that, under described lid, filling machine head comprises handwheel, large column, post, round nut, supporting plate, balladeur train, lock screw, the upper induction switch of upper cylinder piston, switch installation board, guide plate, the upper induction switch of middle cylinder piston, sender plate, sentinel valve, switch bracket, the next induction switch of sealing cylinder piston, the next induction switch of upper cylinder piston, filling valve, recovery valve, vacuum pumping valve, the lower filling machine head base plate of lid, feather key, nut, copper sheathing, regulate screw mandrel, upper cylinder lid, upper cylinder, upper cylinder piston, one-way throttle valve, round nut, middle cylinder head, middle cylinder piston, middle cylinder, sealing cylinder, fast-discharge valve, sealing cylinder piston, sealing cylinder piston rod, sealing cylinder lid, connecting body, spring, spring guide, filling head spring, guide ring, the axis of cone, stop screw, filling head, guide ring, gland, seal body, sealing pawl, positioning ring, collar, sealed pressing sleeve, adjustment sleeve, filling head seal ring, seal ring collar, inhale valve sealing ring, sealing gasket, guiding trim ring, tank shoulder plain cushion,

Upper cylinder lid, upper cylinder and upper cylinder piston composition upper cylinder are installed on supporting plate, middle cylinder head, cylinder during middle cylinder and middle cylinder piston form, middle cylinder head and upper cylinder piston are with to be threaded and tight with round nut, sealing cylinder, sealing cylinder piston, sealing cylinder piston rod and sealing cylinder lid composition sealing cylinder, sealing cylinder and middle cylinder piston are with to be threaded and tight with round nut, sealing cylinder covers and is provided with sentinel valve, sender plate and the next induction switch of sealing cylinder piston be arranged on switch bracket, the axis of cone is connected with sealing cylinder piston rod thread, spring is housed in sealing cylinder piston rod and between the axis of cone in order to the tensioner axis of cone, axis of cone lower end is provided with male cone (strobilus masculinus), inner hexagonal hole is provided with in the endoporus of lower end, connecting body is connected with sealing cylinder cover screw, connecting body endoporus is provided with two grooves, groove is built with the guide ring for the guiding to sealing cylinder piston rod periphery, seal body to be threaded in below connecting body and to compress gland, the large periphery of seal body is provided with a groove, installs the guide ring of the guiding be used for the lower filling head endoporus of lid in groove, sealing pawl is solid of rotation, eight equal parts is cutd open into along longitudinal section equalization, positioning ring is placed in the groove of sealing pawl, collar is the ring body cutting opening, be stuck in the periphery of sealing pawl, be placed in seal body the step hole be positioned at below gland, the lower end of sealing pawl is provided with inner conical surface, seal body lower end endoporus is provided with internal thread, adjustment sleeve is installed, inhaling valve seals is enclosed within adjustment sleeve, suction valve seals is fixed on adjustment sleeve by the outside that seal ring collar is stuck in adjustment sleeve, seal with seal ring between seal body and adjustment sleeve, the lower end surface of adjustment sleeve is provided with two symmetrical apertures, sealed pressing sleeve is connected with the lower filling head thread of lid, under lid below sealed pressing sleeve, the groove of filling head is built with filling head seal ring, seal with seal ring between sealed pressing sleeve and the lower filling head of lid, the lower filling head of lid and seal body are slidably connected, seal with seal ring between seal body and sealed pressing sleeve, seal with filling head seal ring between seal body and the lower filling head of lid, the lower filling head top of lid is provided with a radial screw, mounting limit screw catches on seal body, the upper-end surface of the lower filling head of lid is provided with the hole of four equal distribution outside endoporus, and filling head spring is placed in this hole, and spring guide threaded upper ends is connected to sealing cylinder lid lower end, and spring guide lower end is inserted in the hole of filling head spring, tank shoulder plain cushion is contained in the step hole of guiding trim ring, guiding trim ring is threaded in the lower end of the lower filling head of lid, tank is takeed on plain cushion to compress with the end face of the lower filling head of lid, the bottom of the lower filling head of lid is provided with three screws, screw is all provided with aperture and communicates with the endoporus of the lower filling head of lid, and being provided with step hole to place sealing gasket, left rear side screw installs filling valve, right lateral side screw installs recovery valve, screw above installs vacuum pumping valve.

6. filling machine under full-automatic three straight line type lids according to claim 5, it is characterized in that, described filling valve comprises sealing gasket, nut one, joint, supporting ring, three seal rings, pressure ring, pad, valve body, and cap, spring, copper sheathing, nut two, spool, bulb joint, a supporting ring, three seal rings and a pressure ring form one group of combination seal, combination seal is arranged in the macropore of joint left end, joint is connected with valve body screw thread, pad pad is between pressure ring and valve body, spring housing is outside the left end of spool, nut two is connected with valve body screw thread and drives copper sheathing pressing spring, spool right-hand member conical surface under the elastic force effect of spring withstands sealing gasket, turn nut two changes the decrement that nut two and the relative axial position of valve body can change spring, and cap is connected with valve body screw thread and tight with nut two, the endoporus of copper sheathing and the cylindrical Spielpassung of spool, the minor diameter cylindrical of copper sheathing left end and nut two Spielpassung, the endoporus Spielpassung of the cylindrical of spool right-hand member and the endoporus of valve body and joint, joint and valve body are screwed, the seal ring spreading of combination seal, the right-hand member periphery tensioner of endoporus and spool, the endoporus tensioner of periphery and joint left end, nut one is connected with joint screw thread, and joint is connected and press seal pad with filling head thread under lid, and nut one is also tight with the lower filling head of lid, the right-hand member cylindrical of spool is provided with one section of step, and cylindrical is provided with four apertures and communicates with endoporus, and bulb joint is threaded with spool and seals, and bulb place is used for installation high-voltage corrugated flexible hose and is connected with weighing machine liquid outlet.

7. filling machine under full-automatic three straight line type lids according to claim 5, it is characterized in that, described recovery valve comprises sealing gasket, nut, joint, cutting ferrule directintermination joint, piston rod, supporting ring, three seal rings, pressure ring, pad, spring, piston, oil sealing, cylinder liner, bend cutting joints, a supporting ring, three seal rings and a pressure ring form one group of combination seal, combination seal is arranged in the macropore of joint left end, and joint is threaded with cylinder liner; The left end cylindrical of piston rod coordinates with the interporal lacuna of piston, and is screwed connection; The endoporus Spielpassung of outside piston and cylinder liner, has the oil sealing sealing in the groove that is arranged on piston between the two; Spring housing on the piston rod, both ends of the spring respectively with piston and pad contacts; The left end of cylinder liner is provided with tapped through hole, installs bend cutting joint; The cylindrical of joint is provided with tapped through hole and communicates with coupler bore, and cutting ferrule directintermination joint is connected with joint screw thread; Cutting ferrule directintermination joint is used for connecting hose and is connected with recovery compressor; Joint is connected and press seal pad with lid lower filling head thread, nut is connected with joint screw thread and with filling head under lid also tightly.

8. filling machine under full-automatic three straight line type lids according to claim 5, it is characterized in that, described vacuum pumping valve comprises sealing gasket, connecting base, straight-insert joint, V-shaped seal ring, O-ring seals, spring, bend cutting joint, cylinder, piston, cylinder head, bend cutting joint, connecting base is threaded with cylinder, seal with O-ring seals, V-shaped seal ring is arranged on the taper hole place of connecting base, spring housing is on the left end bar of piston, spring right-hand member contacts with the endoporus step of cylinder, and left end is pressed on the end face of V-shaped seal ring; Cylinder head is threaded with cylinder, seals with O-ring seals; The cylindrical of piston and the endoporus Spielpassung of cylinder, seal with O-ring seals; Bend cutting joint is threaded with cylinder and connects with the left chamber of cylinder, and bend cutting joint and cylinder head are threaded and communicate with the right chamber of cylinder; Straight-insert joint and connecting base are threaded and communicate with the left side endoporus of connecting base, and straight-insert joint flexible pipe is connected with vacuum tank.

9. filling machine under full-automatic three straight line type lids according to claim 5, it is characterized in that, also comprise hot blast defrosting plant, described electric control box controls described hot blast defrosting plant, and described hot blast defrosting plant is used for defrosting to filling head;

Described hot blast defrosting plant comprises heat gun, supervisor, ball valve, joint, corrugated flexible hose, blowing head support, blowing head, the left end of supervisor is welded with plug, right-hand member is welded with joint, heat gun is plugged on the right-hand member of supervisor, supervisor being welded with support is screwed in frame, supervisor is welded with three joints side by side, coupler bore communicates with supervisor's endoporus, difference mounting ball valve on three joints, the erection joint of ball valve top, joint is installed corrugated flexible hose to be connected with blowing head, blowing head is fixedly mounted on blowing head support, the vertical rod screw thread of blowing head support is fixed in frame, blowing head lifting is connected on blowing head support.