CN101712212A

CN101712212A - Automatic welding machine for plastic carry strips

Info

Publication number: CN101712212A
Application number: CN200810155454A
Authority: CN
Inventors: 朱学良
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-29
Filing date: 2008-09-29
Publication date: 2010-05-26

Abstract

The invention discloses an automatic welding machine for plastic carry strips. A motor is reduced by a reducer, and then drives a plurality of rotating shafts with cams or tooth-missing gears to synchronously rotate; the cams and the tooth-missing gears push various executing components to complete the feeding of plastic bags, the opening of the bags, intermittent feeding of a double-layer plastic film coil, cutting of the plastic film into strips, and bending of the film strips into a U shape; and the U-shaped film strips extend into the opened bags, the bags are folded, and an electrothermal welding head presses and welds the strips to form the carry strips of the plastic carry bags. The automatic welding machine has the advantages of high automation level and simple and convenient operation, and can be combined with bag-making equipment such as a hot cutting machine and the like to form a full automatic plastic carry strip welding machine.

Description

Automatic welding machine for plastic carry strips

Technical field

The present invention promotes various executive items in proper order by a plurality of synchronous cams that rotating, hypodontia gear and finishes the slitting of moulding a bag carry, opening sack and plastic tape for a kind of, curving of plastic strip, move ahead put in sack and with mould bag seam and become the plastics of carrying band and carry carrying and being with automatic seam machinery of bag.

Background technology

The combination property of plastic sheeting is splendid, surpass a lot of baggings with the plastic film bag, certainly excessively utilize its advantage often also can run counter to desire, for example use ultra-thin (though＜0.025mm) the plastic film bag still can keep good serviceability, cost is extremely cheap again, throwawaying as disposable articles for use really is cheap but good commidities, what cover the sky and the earth soon buds out into popularity, but which kind of microorganism this artificial synthetic thing of plastics does not still have so far and it can be decomposed, its sun-resistant again nature weathering that drenches with rain is also wanted suitable time, therefore mould bag with after promptly throw away a large amount of wandering environment and must cause serious environmental to pollute: film wave the with the wind high extension treetop or the lake, river of trailing, animal is eaten by mistake and can stop up stomach and cause death, and ploughing under can influence plant root growth in the soil and cause crop production reduction ... very harmful.Therefore developed country ultra-thin before many decades to mould bag also once voguish, promptly add restriction or forbidding subsequently.China also recognizes its harm after arbitrarily very soon enjoying disposable convenience, also will forbid ultrathin plastic film bag.Though ultra-thinly mould bag forbidding to substitute its product a lot, advantage is all little by contrast, and is fragile as the papery bag, water funk again, and pollutes also very serious in the paper-making process; The cloth bag valency is expensive non-watertight again, easy dirty need are often washed ... had better be with the plastic film thickening some change the durable shape bag of disposable product into using repeatedly, and because of quality reclaims than also being easy to after broken greatly, moulding bag let alone this class also is not difficult to produce, just can use repeatedly as the thicker bag of moulding of carrying band with plastics, certainly it also has the more high shortcoming of cost, manufacturing process, it is more complicated that production equipment is also wanted, it is less competitive than ultra-thin shape bag naturally when not considering problem such as environmental pollution, and existing ultra-thin moulding contaminated environment carries the chance that the bag development is promoted also just for plastics after bag is limited the use of forbidding.

The processing that plastics are carried bag Duo than ultra-thin shape bag and is carried tape welding together and close operation, and band is carried in seam needs every bag to carry out separately, now still has an electric heating seam seam of operating by hand, and the very low labour intensity of output is but very big; Also useful numerous cylinders are handled each executive item and sequentially bag sack of moulding that is put into by hand on the seam station are opened to allow and moulds bar and curve U-shaped and send the semi-automatic seam machine that seam behind the sack becomes to carry bag to, per minute output can reach about 20, but manually put the bag labour intensity also very big; Though the output of full-automatic seam equipment is high, price is also very high, embarrasses the producer of middle and small scale to accept; The patent No. be ZL2004200695619's " a kind of plastics carry bag the tape welding of carrying connect equipment " also belong to semiautomatic equipment, output is not high yet, the labour intensity of manually put bag, receiving bag is also bigger.The output that this kind equipment formation cost is low is not high yet at present, the yet very high situation of price that automaticity is high.Past has been constrained production and use that plastics are carried bag because of ultra-thin shape bag, the quality of production cost and product is depended in the plastics production and consumption meeting of carrying bag from now on, therefore producing this low value product more needs the output of a kind of automaticity height, product, quality also very high naturally, but the comparatively cheap bag of moulding of price is carried tape welding and closed machinery.

Summary of the invention

Purpose of the present invention is exactly at the film head carry over facility that band film head puts in sack of carrying that increases again on " a kind of plastics carry bag the tape welding of carrying close equipment " basis (ZL2004200695619) after carrying band to curve U-shaped, the polybag conveyer, mould the automatic deploying device of bag sack and and the structure of hot-cutting machine interlock wait and improve automation degree of equipment and work efficiency, and cost still can keep cheap plastics to carry the seam machinery that bag is carried band.

At first it has diverted from one use to another that scale in " a kind of plastics carry bag the tape welding of carrying close equipment " unreels, shears the film bar, the film bar curves, and moulds bag with carrying a structure such as band film head seam, has increased some new mechanisms again, and newly-increased mechanism mainly contains:

The one, push down moulding band film head, slitting, but curve on the L shaped moving plate of swing on the jackshaft that body modification to two piece is suspended on frame top, the press mold camshaft is being adorned at the middle part of L shaped moving plate and the film bar fastens mechanism, the bottom of L shaped moving plate is being adorned the film bar and is being curved mechanism and promote the film bar that the film bar curves mechanism and curve camshaft, adorn one on the axle and curving cam and two passing cams that the L shaped moving plate of promotion moves forward and backward, pass cam and contact with two rollers on being fixed on the fuselage crossbearer, curve along with the film bar camshaft swing circle push away or make L shaped moving plate swing near crossbearer.Curve cam and pushing away a two-sided tooth bar reach, and move after heading on revolution again by the spring of tooth bar front portion with cam, contract after tooth bar is protracted and drive the reciprocal rotation that two gears are made 90 degree, drive two groups of press mold pieces through two little axles again two film heads dos, the 90 degree rotations that clip are curved the U shape to the film bar by in-line, and then make the reach of L plate allow the preshoot of U-shaped film head put in the open sack by passing cam, wait and pushed down the back by pressuring diaphragm and just can decontrol the film bar and reset and change next the circulation again over to.

The 2nd, mould a bag automatic bag mouth opener, it is by with last, following seam cam is coaxial adorning on, following mucous membrane cam is periodically pushing away, following mucous membrane axle sleeve is on the slide bar, lower slider, about two mucous membrane axle sleeves shoulder a transverse slat altogether, dress mucous membrane adhesive tape seat on the transverse slat, dress mucous membrane adhesive tape in the seat, be interrupted the topped plastic film of going up again to form less viscous force after pasting double faced adhesive tape on the mucous membrane adhesive tape, on, the motionless mucous membrane adhesive tape that goes up of following mucous membrane adhesive tape went up to allow sack open after following mucous membrane adhesive tape was stained with sack, last mucous membrane adhesive tape moved down a film head-clamp again again in bag after meanwhile U type film head put in sack, along with moving down of pressuring diaphragm one presses and mould bag and does not wait electric heating seam head to contact to mould on the bag, following mucous membrane adhesive tape just in time pulls plastic film and resets, and the head of electric heating seam subsequently just presses sack and makes and mould bag and become with the seam of U type film head and carry bag.

The 3rd, mould a bag carry mechanism, it by with on the coaxial end face of adorning of hypodontia gear that dial to change advances film glue axle with the gear with holes of the half gear engagement of plane cam and with the coaxial bevel gear of adorning of gear with holes, and therewith coaxial two drive sprockets of another bevel gear of meshing of bevel gear drag one group of holder bag plate chain of commentaries on classics to form.Two drive sprockets have been formed a holder bag plate chain with equidistant some blocks of holder bag plates of adorning on three groups of driven sprockets, two chains and the chain.Here half gear is identical with the number of teeth of gear with holes, also promptly half gear returns and circles, gear with holes also only turns around the back with regard to time-out for the moment, for making tooth on the gear with holes and the tooth on half gear slide into locating pin immediately in the hole that just need allow on the gear with holes and check once breaking away from gear with holes fixed can still revolution of can stopping according to inertia, locating pin is contained in the movable boatswain chair bottom that hangs on the riser that is hung on the pinion stand that is installed in gear with holes, having a spring base pushing away movable boatswain chair on the riser makes locating pin be close to gear face with holes to slide and meet the hole and slide into promptly that gear with holes is stopped is fixed, plane cam on the half gear end face is then pushing away not only portable plate and is extracting hole on the gear with holes by locating pin and allow gear with holes but also can rotation by half gear band, here gear with holes is stopped stop as long as suitably just can reach the plane cam arrangement locating pin extracted pasting outside the hole that gear face slides and sliding into when the tooth of two-wheeled just breaks away from, also promptly allow and welded the bag of carrying of carrying band and shift out the seam station with holder bag plate and the holder bag plate of moulding bag to be welded by next piece holder and enter and suspend a moment behind the seam station and open to finish sack, the film head puts in, and seam becomes to carry operations such as bag.

The 4th, cooling system, the temperature of the electric hot plate of seam machine, seam head is very high, temperature rise was also very high after adjacent with it parts were subjected to thermal radiation, when will directly contacting with plastic film, must manually cool off by these parts them, here being in pressuring diaphragm and electric hot plate, the first-class close proximity of seam of moulding above the bag is heated for a long time again and bag closely connected must manually cools off it with moulding, pressuring diaphragm can be made hollow and be divided into several lattice, allow cold water cross and take away heat at the introversion baffling.Being in a panel of moulding below the bag heats up also very high, but it not with mould that bag directly contact and by asking a bag plate to separate, holder bag plate is short with panel, the first-class thermal source of the seam heated time of gathering less and separating more on holder bag plate chain again, cool time is long outside, temperature rise can be too not high, even because of the too high cooling of temperature also can be used the fan blast-cold when not enough on the winding line, therefore can not be used in logical cold water in the monoblock panel.But no longer adopting vacuum film adsorption by the open mode of sack, draws by this machine with viscose glue is sticking, though viscous force can be regulated very for a short time, but when be heated very little pulling force that stick when feeling like jelly is pulled away from plastic film of plastic film also can allow the be heated plastic film of deliquescing produce the permanent deformation influence and carry a bag quality, therefore must fasten at pressuring diaphragm when stick is pulled away from plastic film and mould bag, seam head and but do not press in the gap of plastic film and finish, this " action " can reach by adding " pause " process in the descending process of seam cam.

The 5th, the chimeric linkage structure of upper and lower press mold piece, the upper and lower press mold interblock that film feeding glue axle sent the double-layer plastic film band edge of a knife enter to open, the press mold cam pushes last press mold piece to push down to be downcut by cutting membrane knife behind the film band again becomes the film bar, the wide about 30mm of film bar has half to be pushed down half outside the press mold piece by upper and lower press mold piece.Upper and lower two groups of press mold pieces are independent separately, but on the press mold face of last press mold piece a projection is arranged, a shrinkage pool should be arranged on the press mold face of lower pressed film piece mutually, going up projection on the press mold piece when upper and lower two press mold pieces are pushed down the film bar imbeds and goes up the press mold piece when shrinkage pool on the lower pressed film piece makes two to lump together and just can follow the lower pressed film piece together to rotate, the lower pressed film piece can driven by the rack pinion of bottom and do 90 degree revolutions, just the film bar can be curved the U shape when inwardly turning 90 degrees, send into and get final product seam after open sack is pushed down.After pressuring diaphragm is pushed down the film bar on the seam station, last press mold cam also is turned back to minor radius allows the press mold strip the top die piece, make projection on the press mold piece break away from shrinkage pool on the lower pressed film piece, under the torsion of torsion spring on two the press mold piece go back to and under the restriction of block on the top board, be returned to again a straight line.In like manner, the lower pressed film piece is promoted the gear counter-rotating and is being with the lower pressed film block reset at the anti-retraction that pushes of pressing the tooth spring by big RPH tooth bar at the pushing radius that changes the film cam, and also replys in line under the block on the lower platen limits.

The 6th, mould bag interlock carry structure, when the seam machine is produced the hot-cutting machine coupling of moulding bag together, two machines can be connected into one with butt joint or mode arranged side by side, but at this moment need local repacking of existing hot-cutting machine do and shared same motor.Can allow during butt joint seam station that hot-cutting machine directly delivers to the seam machine with the plastics bobbin again by the seam machine finish mould bag dehisce, send to U-shaped film bar and seam etc. again by hot-cutting machine simultaneously on the bag underseal, cut into bag.Though the butt joint form is simpler, the relative distance of two machines just needs to adjust when producing the moulding bag of different length when changing, and is cumbersome.Then there is not this fraud when two machines are arranged side by side, hot-cutting machine is as long as be pushed to seam cutting-out on the holder bag plate to the plastics bobbin, the length of bag and the location independent of hot-cutting machine, as long as be transferred to the cutting knife mouth on the hot-cutting machine with seam sack on the seam machine concordant, also promptly as long as adjusted the retaining bag angle bar on the holder bag plate, certainly must single bag finish one by one because of the seam machine and carry tape welding and close, production efficiency is not high, and the production efficiency of hot-cutting machine is very high, a hot-cutting machine production moulds the usefulness that bag can several seam machines of confession when individual operation separately, on hot-cutting machine, finish at last surely in addition the shape structure of moulding bag that has differs, so the situation that they are produced separately separately still is more.

After original " a kind of plastics carry bag the tape welding of carrying close equipment " add on (ZL2004200695619) or improved 6 above-mentioned place's structures, carry band and just can accomplish that automatic seam and output better quality are reliable, because newly-increased structure is still the parts that cam wheel etc. is used always.Operation is very reliable under low speed, and complete machine only needs a motor to drag, and need not electrical control common in the automation equipment, not only economization manufacturing cost but also can reduce user's use cost.Being the main mode and the approach of invention naturally from simple to complexity when technical standpoint is weighed the technical solution problem, also be the main direction of creative work but become simply by complexity, and it is more obvious than the former to weigh the latter from economic benefit.

Description of drawings

Concrete form of the present invention and implementation method will be lifted legend and be further specified, and see also accompanying drawing: wherein:

Fig. 1, the positive over glaze of automatic welding machine for plastic carry strips is surveyed schematic diagram.

Fig. 2, the side axle of automatic welding machine for plastic carry strips is surveyed schematic diagram.

The generalized section of Fig. 3 automatic welding machine for plastic carry strips upper frame.

Fig. 4, the suspension type film bar of automatic welding machine for plastic carry strips curves, and the axis of no-feathering that swings is into surveyed schematic diagram.

Fig. 5, the sack of automatic welding machine for plastic carry strips open the axle of mechanism and survey schematic diagram.

Fig. 6, the sack of automatic welding machine for plastic carry strips and carry the axle that tape welding closes mechanism and survey schematic diagram.

Fig. 7 drags the drive sprocket transmission system schematic diagram of bag plate chain that asks on the automatic welding machine for plastic carry strips.

Fig. 8, the gantry configuration schematic diagram of an automatic welding machine for plastic carry strips holder bag plate chain and a support bag plate chain.

Fig. 9, the structural representation when automatic welding machine for plastic carry strips and hot-cutting machine butt joint.

Figure 10, plastics carry the structural representation of the commentaries on classics film gear-box of bag automatic seam machine

Figure 11, the axle of the water-cooled pressuring diaphragm structure of automatic welding machine for plastic carry strips is surveyed schematic diagram.

Figure 12, the chain belt transmission system axle of automatic welding machine for plastic carry strips is surveyed schematic diagram.

Figure 13, the holder bag plate schematic diagram of automatic welding machine for plastic carry strips.

Figure 14, many cams of automatic welding machine for plastic carry strips, the sequential operation schematic of agomphosis gear.

Figure 1 shows that the structural representation of automatic welding machine for plastic carry strips, it is made up of main frame 1 and holder bag plate chain 2 two large divisions, main frame 1 is formed by stacking by upper frame 3 and lower support 4, holder bag plate chain 2 opens sack moulding after bag is placed on the seam station that is sent to one by one on the holder bag plate on the main frame 1 automatically, after cutting slivering, moulding bar to curve the U shape, swung forward again in the sack that opens to be bonded to mould by the electric heating welding syncephalon by the double-layer plastic film on the upper frame 3 volume again and become carrying bag on the sack, lower seat 4 in-built motor, the power parts such as speed changer.

Figure 2 shows that the rear flank profile schematic diagram of automatic welding machine for plastic carry strips, the motor transmission that is installed on lower is transferred to speed-power on the driving shaft 5 with belt, be sent on the axle 6 by driving shaft 5 usefulness chains or Timing Belt etc. again, use again 1: 1 speed ratio by sprocket wheel from axle 6 beginning, synchronizing wheels etc. are sent on each axle again, also filling hypodontia gear 7 on the axle 6 periodically stirs the glue axle and pays to push double-layer plastic film bar about 30mm and cross cutting knife and be used as to carry band to downcut, one end of axle 6 is also filling half gear 8, also with a plane cam, drive a bevel gear by it and pay 9 and drag and turn to two sprocket wheels 10 to drag holder bag plate chain 2 (seeing Fig. 7) on the end face of half gear 8.

Figure 3 shows that the generalized section of upper frame, expression Double-layer Plastic band 11 is sent to " plastic film fastens mechanism " by a pair of glue beaming roller among the figure in interrupted the rotation, promote upper cutters and depress with lower cutter is involutory plastic film is cut into the wide film bar in the 30mm left and right sides by cutting film cam 13 again after in revolution, pushing the press mold piece by press mold cam 12 plastic film being pushed down, promote tooth bars by transferring film cam 14 again and make forward in the gear-box last two transferring film gears of train turn over 90 degree to drive upper and lower press mold piece rotation the film bar is changed into the U shape by in-line. Meanwhile holder bag plate chain is sent the seam station to and is promoted the mucous membrane adhesive tape by upper and lower

mucous membrane cam

18,19 and sack is clung pull open putting the holder bag plate of moulding bag, push the anti-transverse slat 16 that pushes away of cam 15 by the film bar again and make to swing before the L shaped plate 17 and allow U-shaped film head put in the sack that opens,

seam cam

20,21 pushes the involutory handle of upper and lower electric heating welding syncephalons and moulds bag and carry the seam of band film bar and be integrated immediately. Here each executive item of various cams promotions can further be illustrated below.

Figure 4 shows that the film bar curves the suspension type structural representation that swings forward again behind the U shape into sack, two L shaped portable plates 17 are hung on the jackshaft at fuselage top, the middle part of L shaped plate is filling press mold camshaft 22, on filling two press mold cams 12, press mold cam 12 is pressed on the pressuring diaphragm 24 and makes it to move up and down, two upper press mold pieces 25 are housed on the upper pressuring diaphragm 24, fixedly mounting below and pressing down lamina membranacea 26, press down and filling two lower pressed film pieces 27 on the lamina membranacea 26, prominent and the torsion spring in the garden of on upper press mold piece 25, also being equipped with, press down on the module 27 and be drilled with the hole, garden corresponding to prominent position, the garden on the upper press mold 25, upper press mold piece will rotate together along with the lower pressed film piece when upper press mold piece 25 moves down prominent hole, garden of imbedding on the lower pressed film piece, garden on it, but when press mold cam 12 turns over an angle and makes prominent hole, disengaging garden, upper pressuring diaphragm 24 rise gardens upper press mold piece 25 will the torsion at torsion spring under horse back rotate back into the in-line original position that the block 28 on the pressuring diaphragm 24 is keeping off. It is following with a gear-box to press down lamina membranacea 26, the trains that in-built 4 gears form, train is driven by tooth bar 29, and two lower pressed film pieces 26 were with upper press mold piece 25 and clamp the film bar at two and allow the film bar curve into the U shape by in-line with respect to doing 90 degree revolutions when transferring film cam 14 was pushing away tooth bar 29 and moves ahead. Pass the anti-transverse slat 16 that is fixed on the fuselage that pushing away of cam 15 and allow swing before the L plate and make U-shaped film head put in the sack that is opening at seam station place along with the revolution of passing camshaft 30 allows again. The back side at the L plate is pushing away the trend that makes the L plate that the auto-returned original position be arranged by the back-moving spring (not shown) that is fixed on the fuselage, allows the close upper and lower cutting knife mouth of upper and lower press mold piece energy to guarantee to downcut from the film band film bar of wide about 30mm.

Figure 5 shows that the structural representation of sack stretching mechanism, on upper seam camshaft 20 and lower seam camshaft 33, load onto separately a pair of

mucous membrane cam

18,19 and be equipped with two groups of slide bars 36, transverse slat 37, the mucous membrane mechanism of the compositions such as mucous membrane adhesive tape seat 38 is equipped with mucous membrane adhesive tape 39 and clings sack, can inject easily in the mucous membrane adhesive tape seat 38 and release mucous membrane adhesive tape 39, sticking two-faced adhesive tape band 40 is again with the viscous force of the topped two-sided tape of single face tape portion with adjusting mucous membrane adhesive tape on the mucous membrane adhesive tape 39, on, lower two groups of slide bars 36 share two guide posts that are fixed wtih 41, also are furnished with two springs 42 on the guide post 41 to give two groups of slide bars 36 with on being adjacent to, lower mucous membrane cam 34,35 pressure. The lower mucous membrane cam 35 here allows the mucous membrane adhesive tape be stained with to mould shakes off plastic film after motionless maintenance a period of time of bag again, upper mucous membrane cam 34 but need be stained with namely plastic film to be mentioned behind the plastic film sack is opened, depress again after allowing U-shaped film head put in, but first-class pressuring diaphragm gos up again once pushing down plastic film, shakes off the plastic film self-resetting.

The sack that is shown in Figure 6 is carried schematic diagram with seam mechanism, among this figure the suction film cam of in Fig. 5, having told about and inhale film device and also be drawn in the lump but no longer mark and mention. Being contained in

seam cam

21,23 on the upper and

lower seam camshaft

20,33 is pushing away upper and lower two working plates 44 and relatively moves along guide pillar 45 and allow the electric heating welding syncephalon that is contained on the upper and lower working plate 44 firmly mould bag and the U shape is carried band in workbench 46 folder welderings, 47 of pressuring diaphragms above workbench are made hollow sheeting and are passed to cold water, electric heating welding syncephalon and attached parts thereof repeat no more because of identical with " a kind of band seam equipment of carrying of plastics carrying bag " structure in (ZL2004200695619).

Figure 7 shows that the transmission mechanism schematic diagram that drags bag plate chain that asks. An end of axle 6 is filling half gear, 8, half gears 8 and perforated gear 49 engagements with plane cam 48 in the drawings, is filling a bevel gear 50 and is installed in the gear-box 52 with the another bevel gear 51 of bevel gear 50 engagements with perforated gear 49 is coaxial. Riser 53 of weldering on the gear-box 52, hanging a portable plate 54 on the riser 53, the middle part of portable plate 54 is filling a garden dish 55 with plane cam 48 contacts on half gear, 8 end faces, and by the spring base 56 on the riser 53 pushing away the cam 48 that allows on garden dish 55 and half gear 8 end faces be in always closely connected in to allow the locating pin 57 of portable plate 54 bottoms can enter in order or withdraw from hole 58 on the perforated gear 49, so that perforated gear 49 rotates or stops and decide, also namely allow the tooth of perforated gear 49 and the tooth on half gear 8 slide into once breaking away from locating pin 57 that to allow perforated gear 49 stop in the hole fixed, from the hole, extract again subsequently and allow the preparation that perforated gear 49 performs to be turned to by half gear, 8 bands. Being front view above among the figure, then is axonometric drawing below, and expression is turned to the in tow drive sprocket 10 of holder bag plate chain by bevel gear 51 warp beams 59 bands.

Figure 8 shows that the schematic diagram of holder bag plate chain and holder bag plate chain bearing support. Be the structure of holder bag plate chain, following branching bolster structure for holder bag plate chain above among the figure. Equidistantly conspired to create by two chains 61 by some blocks of holder bag plates 60 and to be contained on the reversing frame 63 by drive sprocket 10 and driven sprocket 62 after a string, 63 1 of reversing frames are contained on the upper frame 3, the other end is being supported by support 64, and the driven pulley on the support 64 is installed on adjustable bearing 65 degree of tightness with adjusting chain 61.

Docking form schematic diagram when Figure 9 shows that automatic welding machine for plastic carry strips with the hot-cutting machine coupling, the roll shaft of hot-cutting machine is paid on the seam station that 66 plastics bobbins directly deliver to the seam machine finishing and is moulded opening of tube, allow U-shaped film bar put in nozzle, at the bottom of the shearing cam 67 that the electric heating welding syncephalon welds hot-cutting machine when carrying band promotes that hot knife 68 is descending and welds bag and cutting-out mould bag. Naturally at this moment handle the cam 67 of hot knife 68 on the hot-cutting machine and drag pass on the hypodontia gear of film roll shaft 66 also will be by same driven by motor on the seam machine. But when the moulding bag of conversion different length, hypodontia gear 69 and the gear 70 that is engaged with also need be changed, and two distance between machine be that the size of cushion block 71 also need be changed, because it is unhappy that the speed of band is carried in the seam of seam machine, and hot-cutting machine production mould the bag efficient very high, a hot-cutting machine can be supplied with many seam machines and mould bag when producing separately separately, and therefore general ready-made hot-cutting machine is unworthy and the coupling of seam machine.

Figure 10 is the structural representation of the automatic seam machine of plastics carrying bag transferring film gear-box, it is to be contained in a casing 72 below the pressuring diaphragm 24 and to be contained in gear combination in the case, two idler gears 74 that gear combination is driven by a two-sided tooth bar 73, again with 75 engagements of two transferring film gears, transferring film gear 75 warp beams 76 drive lower pressed film pieces 27. Just make to press down module 27 and inwardly change into mutually shown in the accompanying drawing of lower-left when tooth bar is promoted reach by the transferring film cam, the two film heads that namely allow two press mold pieces up and down clamp change into parallel shape, because being turned over 90 degree by plate 77 is limited on the two lower pressed film pieces 27. Press mold piece 27 just reversed and also can only be returned to a word shape under the placing restrictions on of block 78 and arranges when tooth bar 73 was return under the thrust of spring 82. Aperture 79 on the lower pressed film piece is to allow projection on the press mold piece insert make the press mold piece can push down plastic film and can follow lower pressed film piece 27 to rotate together. Tooth bar 73 is bearing between two idler gears 74 by backstay 80 and push rod 81 and two springs 82,83, spring 82 is longer and softer than spring 83, it only allows tooth bar return back to original position, spring 83 short and harder it only rise to allow and plate 77 run into that backgear 74 can not turn to but push rod 81 still plays cushioning effect forward to allow the transferring film cam turn over peak when being pushed away by the transferring film cam on the lower pressed film piece 27 again.

Structural representation when Figure 11 is pressuring diaphragm employing water-cooled.The water-cooled pressuring diaphragm is to be the main hollow sheeting that is welded into upper and lower two

thin plates

84,85, the centre is welded with several water-stop sheets 86, be welded with the ducted body of coaming plate 87 all around, two pipe joint 88 of burn-oning again, the looping pit 90 that two the seam heads of burn-oning again at electric heating seam 89 position of passing pass through, the also topped heat radiation that has thermal insulation board 91 to be subjected to electric hot plate 92 with minimizing on the thin plate of upper strata.Cold water enters tortuous flowing through from the water pipe outflow of other end within it from pipe joint 88 and takes away the heat of pressuring diaphragm to stop the rising of plate temperature.

Figure 12 represents the transmission system schematic diagram of automatic welding machine for plastic carry strips, expression is transported to power on the driving shaft 5 with pulley concial disk by motor transmission among the figure, the rotation that begins with 1: 1 from driving shaft 5 is sent to each than with sprocket wheel or synchronizing wheel, axle 5 is sent to axle 6 as shown in FIG., 7 groups of hypodontia gears on the axle 6 change the glue axle and pay at every turn propelling movement 30mm left and right sides plastic film between cutting knife up and down, fastened the back upper cutter immediately and downcut and to become the film bar, half gear of axle 6 other ends is stirred a holder bag plate chain and is transferred one and mould bag and proceed to the seam station simultaneously.Another chain is sent to axle 93 again with rotating speed and power on the axle 6, be sent to again on the axle 20 through axle 93, from axle 5, with chain speed-power is sent on the axle 33 again simultaneously, 20 33 on axle just can obtain identical rotating speed and finish the seam of carrying band, by another sprocket wheel 32 on the axle 20 speed is reached on the little axle 94 in top, be sent to the press mold camshaft 22 on the L plate of hanging and pass camshaft 30 by little axle 94 again.Because of axle 22 and axle 30 are in fuselage interior, therefore to be advisable with chain sprocket, avoid using synchronous band in order to avoid the trouble during tape swapping, other local sprocket wheel synchronizing wheel of using all can, because of the rotating speeds such as cam in this machine not high, use the sprocket wheel chain defective---noise is also little, therefore still can preferentially use sprocket wheel and chain.

Figure 13 is the structural representation of holder bag plate chain and annex thereof, 3 groups of installing holes 96 by dress retaining bag angle bar 95 are arranged on the holder bag plate, also there is the Chang Yuan hole 97 of matching to adapt to the bag of moulding of different size on the retaining bag angle bar 95, one of holder bag plate is welded with two long gardens rings 97 and allows electric heating seam head pass through, and also is welded with the chain link 99 of two pitch chain bars to connect chain at the back side of holder bag plate.

Shown in Figure 14 be many cams and agomphosis gear return turn around in the schematic of relative position and job order.Few gear 7 of agomphosis all rotates with identical rotating speed and according to certain sequence with numerous cams with half gear 8 among the figure.Successively promote each executive item and finishing the everything that bag is carried in one of processing.Here be divided into 8 periods returning to circle, the operating point of cam or the executive item of line and promotion are represented with standardized tangent line on cam.And the axle will be in duty the time is stamped hatching, as figure cam 15 is example, tangent line on it is expressed as transverse slat 16, axle is stamped hatching and is represented that cam is in the position of the work of exerting oneself, and does not beat section or the light axle province painter workpiece of drawing on the axle and represents that cam etc. is in the non-position of exerting oneself when not stressing.10 kinds of work packages of 10 perpendicular line displays are 8 cams and two agomphosis gears among the figure, 8 walk crosswise each work package of expression return circle in residing eight stations, orientation when picture one small arrow 100 each work package of expression are in certain synchronization on each work package among the figure, during installation sprocket wheel, synchronizing wheel hang up chain, synchronously with the time arrow orientation on the two-wheeled should be consistent, also be that the direction of arrow on each work package should be consistent after the installation, can be to guarantee each work package correctly according to sequentially-operating.

Specific embodiments

Below in conjunction with embodiment the present invention is further described, the production of an equipment needs according to operation principle, and several factors such as stressing conditions carry out designing and mapping, parts processing, complete machine assembling, adjust and can become formal product after series of processes such as on probation and inspection fold lattice.Naturally can find also in use that weak point still will continue to improve.This seam machine is to adopt cam with reference on the basis of multiple similar seam machine, and the automatic seam machine of the pure mechanical types of Element Design such as special shape gear reaches the purpose that reduces manufacturing cost.Here will omit the most contents of this process to specific embodiments, some contents that should grasp when only the last debug process of product being used with the payment user are made description.

Cam above the complete machine has tens more than (what have is paired or identical) their different operating mode differences with hypodontia gear etc., running is being worked in coordination again and is being finished the seam of carrying band separately separately, therefore when designing and mapping, just need each work package installation position each other sign that on drawing, draws, identical orientation when on all working spare, all drawing at a time among Figure 14, shown in arrow 100, paint etc. by diagram after part processing is finished and draw arrow, ought hang up chain at last in the assembling, allow synchronously the same direction of arrow points on each work package during band, when maintenance, still make arrow points identical during chaining again after the dismounting later on.Rotating ratio at each sprocket wheel, synchronizing wheel all is 1: 1 o'clock, and many arrows sensing nature at work can be consistent all the time.

The production process that plastics are carried band is described as follows, mould bag by the parallel hot-cutting machine that is installed with or mould bag sorter and even staff mode such as is sent with charge free and delivered on the upper strata holder bag plate of holder bag plate chain 2 among Fig. 1 with the seam machine, if when adjusting to 60 of per minute processing and carrying bag, on upper strata holder bag plate, put bag in the running 4-5 time second will be arranged, also promptly average each holder bag plate has putting a bag time of 1 second, and in have half second left and right sides time to be at a stop, therefore no matter be that mechanically bag or the manual bag of going up can both be finished calmly.101 of double-layer plastic film volumes are placed on the unwinding rack and plastic film are sent in the glue axle pays as shown in Figure 2, motor (available variable speed electric motors, particularly) is through speed changer, triangle sack made by leather wheel etc. is sent to rotating speed on 5, as shown in figure 12, from 5 be sent to again 6,93,20,94,22,30 etc. each the time all be 1: 1 speed ratio between used sprocket wheel, synchronizing wheel, so the rotating speed of each cam of upward adorning, hypodontia gear etc. is identical, they are returning the action of finishing setting in circling in each comfortable different period, mould bag the most at last and carry tape welding and synthesize and carry bag.Now per second is returned and be divided into 8 periods in circling and narrate correlation between each cam action, as shown in figure 14:

Period one, gear 49 revolutions with holes allow a holder bag plate chain move except that half gear 8 on the axle 6 has just driven when Shang Yiquan for cam on each, gear, now be rotated further make that seam becomes carry bag along with a holder bag plate shifts out the seam station, the new bag of moulding then changes seam work over to holder bag plate, and other cam, gear all are in the idle running.

Period two, half gear 8 is still in being rotated further, 7 groups of gears that change on the glue axle of the hypodontia gear of axle on 6 make it to turn over an angle and the glue axle are paid double-layer plastic film sent and crossed the edge of a knife about 30mm and enter about 15mm below the press mold cam 12, and other cam still is in the idle running.

Period three, hypodontia gear 7 and half gear 8 have all entered the idle running zone of anodontia engagement, the press mold cam of axle on 22 forwarded the working position to and pushed pressuring diaphragm the film bar is pushed down, and push down the period seven always, the film cam of cutting on the axle 93 forwards the solstics to and promotes upper cutter and press down double-layer plastic film is downcut a film band about 30mm simultaneously.Also having last mucous membrane cam on the axle 20 to enter duty depresses the mucous membrane adhesive tape and is stained with upper strata bag film, the following mucous membrane cam on the axle 33 of moulding bag and pushes to the mucous membrane adhesive tape and cling the lower floor's bag film and motionless the remaining to the period 6 of adhering of moulding bag.

Period four, cam 14 and 15 on the axle 30 all enters duty, cam 14 pushes two-sided tooth bar makes two to change the film gear rotation and cross 90 degree and allow the film bar curve U-shaped forward, and be retained to for seven periods subsequently, simultaneously cam 15 promotes roller on the transverse slats and axle 30 is swung forward with the L plate two film heads of U-shaped film bar are put in the open sack, and going up on this moment axle 20 inhaled the film cam and allowed and hold going up of bag film and inhale the film adhesive tape and haul a bag film rise and sack is opened allow two film heads put in sack.

Period five, going up on the axle 20 inhaled the film cam and prepared to depress for the second time.

Period six, axle going up on 20 inhaled the film cam and depressed once more two film heads of U-shaped film bar are pressed in and mould in the sack, meanwhile the press mold cam 21 on the axle 20 presses down half time-out, but pressuring diaphragm is pushed down moulded bag, at this moment upper and lower suction film cam begins to be pulled away from plastic film and resets, and this moment, upper and lower seam cam did not also make the electric heating piece press plastic film, and by in the logical very not hot press mold piece of cold water pressing plastic film, plastic film also is not heated, so the mucous membrane adhesive tape can not cause the permanent deformation of plastic film when being pulled away from plastic film.

Period seven, commentaries on classics film cam 14 on press mold cam 12 on the axle 22, the axle 30 and film bar push cam 15 and all will reset, last seam cam 21 on the axle 20, the following seam cam 23 of axle on 33 all goes to the operating position and upper and lower electric heating seam head is pressed onto to mould to make it on the bag to become with the seam of U-shaped film bar carries bag, and half gear 8 on the axle 6 is also prepared band and changeed gear with holes and hold in the palm a bag plate chain to drag.

Period 8, except that driving gear 49 with holes, half gear 8 ask bag plate chain to continue the holder bag plate hauling-out seam station of having carried bag having welded in tow, and the holder bag plate of moulding bag in next piece holder dragged outside the seam station, other cam, gear all are in the SBR of idle running.

The rotation of next circle of continuation such as each cam, hypodontia gear is subsequently only moulded a bag seam to next to be become and carries bag.Circulation goes down to carry out again and again the seam that plastics are carried band like this.Generally speaking, cam operate at that (≤120 rev/mins) are quite stables under the low speed, even also be to finish calmly manually putting under the bag to process one each second.Except that the mucous membrane adhesive tape, there is not consumable accessory in the complete machine basically, the mucous membrane adhesive tape is carried out mucous membrane because of sticking multiple double faced adhesive tape on it, except that keeping clean, the need working environment avoid flying dust also need regularly replace the mucous membrane adhesive tape too many, the adhesive tape of changing removed be stained with new double faced adhesive tape behind the original double faced adhesive tape and topped palisade plastic film only stays less viscose glue area, the mucous membrane adhesive tape is released easily and is inserted mucous membrane adhesive tape seat, can upgrade use repeatedly.

Claims

1. a rotating shaft of adorning cam and hypodontia gear by same many of driven by motor is rotated synchronously, and many cams promote in order or driving with the hypodontia gear and put in open plastics sack after various executive items are cut into plastic film the film bar and curve U-shaped and become to carry the automatic welding machine for plastic carry strips that band is carried bag by the seam of electric heating soldering tip again.It is characterized in that: press mold camshaft and film bar curve camshaft and are contained on the L shaped plate, and the film head curves and also adorning the passing cam on the camshaft; Also adorning mucous membrane cam up and down up and down on the seam camshaft; Be meshed with gear with holes in the gear-box with coaxial half gear that has plane cam adorned of hypodontia gear, and cooperate with plane cam and controlling gear with holes and intermittently rotate by being hung on portable plate on the gear-box riser, gear with holes is paid through bevel gear and is dragged alternation of hosts's movable sprocket that the pop-up of holder bag plate chain to mould bag turnover intermittently to carry tape welding to close station.

2. automatic welding machine for plastic carry strips according to claim 1, it is characterized in that its L shaped plate is suspended on the jackshaft of frame top, press mold camshaft and press mold cam are being adorned in the middle part of plate, the passing camshaft is being adorned in the bottom: dress changes the film cam and passes cam on the axle, under the teamwork of three kinds of cams, the film bar is fastened, curvedly pass into the U shape and allow the film head reach of U shape film bar put in the open sack of moulding.

3. automatic welding machine for plastic carry strips according to claim 1, it is characterized in that its up and down bonding cam promotes slide bar, tabularium the mucous membrane adhesive tape and is pressed and mould bag and cling lower bag mouth, but last mucous membrane cam also need allow mucous membrane adhesive tape band to be moulded a bag last film and gos up to allow sack open to put in and depress a film head again behind the film head and push down in sack, and last press mold cam is significantly different with lower pressed film cam and other cam: have two high pressure film spots.

4. automatic welding machine for plastic carry strips according to claim 1, it is characterized in that its be hung on have in the middle of the portable plate on the gear-box riser garden dish be close on half gear plane cam and along with the rotation of plane cam allows periodically swing of portable plate, cause the locating pin of portable plate bottom also periodically leave gear face with holes or pasting end face slide meet the hole slide into just gear with holes is stopped fixed.

5. automatic welding machine for plastic carry strips according to claim 1 is characterized in that its gear with holes is paid through the umbrella tooth to drive drive sprocket and return and allow holder bag plate chain produce one from the seam station when circling to weld the bag of carrying of carrying band and change simultaneously and advance the bag of moulding of carrying band to be welded.

6. automatic welding machine for plastic carry strips according to claim 1, it is characterized in that its up and down the mucous membrane cam promote pasting on the mucous membrane adhesive tape down two-sided tape brings adjusting mucous membrane adhesive tape again with the topped double faced adhesive tape of single face tape portion viscous force.

7. automatic welding machine for plastic carry strips according to claim 1 is characterized in that passing to the pressing plate that cold water keeps lower temperature in its pressuring diaphragm hollow with the same seam cam.