(2) background technology
The packing of industries such as tradition petrochemical complex, plastics and food extensively adopts nylon braided bag and paper bag packing, seal general employing flanging sealing method, this method can't avoid packaging bag in piling and transportation, material is omitted from lignilite, and impurity can enter packaging bag from sack, contaminated material.For overcoming the above problems, on paper bag packing, adopted the secondary method for sealing, the packaging bag sewing thread mouth after will sewing up with adhesive tape is exactly sealed up.Dual mode has sealed with adhesive tape, a kind of is cold envelope mode, another kind is a heat-sealable way, lining cement on the adhesive tape that cold envelope mode adopts is at normal temperatures with regard to toughness, lining cement on the adhesive tape that heat-sealable way adopts is inviscid at normal temperatures, by being heated to uniform temperature, the lining cement fusing just has viscosity.Because cold envelope mode has its shortcoming that can't overcome, therefore the secondary to packaging bag seals increasing employing heat-sealable way.The performance of heat sealing machine influences seal quality again greatly.The main composition of existing heat sealing machine comprises frame, installation frame is set on frame, main drive gear is installed on the frame, and right-to-left is installed paper supply band mechanism, paper foldling mechanism on installation frame, adhesive tape carries and Paper strip cutter structure, heating sealing mechanism and rolling mechanism.This capper has following weak point, and the one, all kinematic pairs all adopt V-wheel drive, because the sum of errors of V-belt length uses in hot environment for a long time, extend easily the V-belt, causes transmission inaccurate, operating cycles is short, and changes difficulty; The 2nd, the dust that packing can not be retained in the time sack is removed, and makes adhesive tape sticking not firm when sealing, the out of reach sealing effect; The 3rd, the rotating shaft two ends that the sack trimming device is fixed a cutting tool are bearings, and cutter is after wearing and tearing, and it is very difficult to change cutter; The 4th, do not protect sutural function; The 5th, adhesive tape is too big to device for folding, and adhesive tape is out-of-level in the exit, makes when sealing, and adhesive tape is pleating easily; The 6th, be used for moving cutting knife blade wearing and tearing that adhesive tape cuts off after, and produce the slit between the cutter, cutter is sharpening and adjusting play often; The 7th, the temperature booster spacing is fixed, and can only spacing be set by the packaging bag of maximum ga(u)ge, is the heating of baking formula to the little packaging bag temperature booster of thickness to adhesive tape so, and this need improve heating-up temperature, and energy resource consumption is big, and heating pipe temperature height is not durable; The 8th, the running roller of rolling device can not pressurize inhomogeneous to adhesive tape with the adjustment of packaging bag thickness.Owing to above reason, former heat sealing machine fault rate height, seal quality is bad, and equipment is adjusted difficulty, maintenance cost height.
(3) summary of the invention
The purpose of this utility model is to provide a kind of seal quality good, and fault rate is low, the Hot melt adhesive tape heat pressing type capper of being convenient to safeguard.
The purpose of this utility model is achieved in that it comprises frame, installation frame is set on frame, main drive gear is installed on the frame, right-to-left is installed the sack blowing mechanism on installation frame, cut a bag limit mechanism, paper foldling mechanism, paper supply band and shoutoff mechanism, the heating sealing mechanism, rolling mechanism, its main drive gear is by rack-mounted reducing motor, chain and sprocket wheel are formed, before paper supply band mechanism, be provided with the sack burring machine, before the sack burring machine, be provided with the sack blowing mechanism, the sack burring machine is made of a pair of cutting knife that is installed in the cutting knife rotating shaft, the bearing of cutting knife rotating shaft is arranged on cutting knife one side, blade automatic play compensation spring is installed on a cutting knife, and the sack blowing mechanism is by governor valve, blowpipe that links to each other with governor valve and hairbrush are formed.
The utility model can also comprise some architectural features like this:
Paper foldling mechanism is made of lower hem plate, upper hem plate, and flanged plate is outside equipped with anti-inclined to one side plate.
The precondition of the utility model work is: the ox-hide paper tape of filling material keeps standing position under the auxiliary conveying effect of another conveyer.
The service conditions that this equipment provides is: enter this machine from pocket, up to this machine of sending, sack is carried (power is from reducing motor) by the chain clamping always, and it is consistent with the conveyer of below that delivery speed keeps, and avoids pocket to tilt.The main motion that paper supply band mechanism carries from chain by sprocket wheel obtains power, makes the linear velocity of outer bus of roller identical with chain master delivery speed.
Under above two conditions, each functions of components and principle of work are as follows:
1, the sack blowing mechanism has adopted compound type to purge structure, and the dust that the packaging bag both sides can be left over is removed, thereby assurance adhesive tape and packaging bag are fully bonding;
2, sack burring machine function is that packing sack redundance is cut away, and makes sack apart from sutural spacing unanimity, and Hot melt adhesive tape can be sealed sack and lignilite fully, guarantees seal quality.The bearing of cutting knife rotating shaft is arranged on cutting knife one side, during the loading and unloading cutting knife, need not dismantle bearing, and cutting knife employing cutting edge wearing and tearing back spacing automatic mechanism, has guaranteed that cutting edge is sharp, and is durable in use;
3, the paper foldling mechanism function is to cover after the Hot melt adhesive tape doubling on the packing sack.The doubling device adopts specially-shaped technology, straight Hot melt adhesive tape can be realized continuous doubling in the exit, and be provided with the adhesive tape deflection preventer, make adhesive tape when doubling about evenly, thereby guaranteed the quality of sealing, realize the continuity of production;
4, adhesive tape is carried and Paper strip cutter structure function is whether the observing and controlling packaging bag puts in place and carry Hot melt adhesive tape, and Hot melt adhesive tape and packaging bag are carried to next station together; Packaging bag by after stop automatically carrying, cut off Hot melt adhesive tape simultaneously.Conveying roller adopts one-sided lag function, and to the packaging bag of different-thickness, capper can both normal operation.Be the protection lignilite, on conveying roller, designed lignilite protection structure, avoid disconnected the unexpected strand of lignilite.The scissors cutting knife is made up of moving cutting knife and cutter, and cylinder drives moving cutting knife, and Hot melt adhesive tape is done shear action, is swift in motion.For making cutoff edge become can both be close on the cutter knife face in holotype, moving cutting knife is provided with pressure equalization means, make cutting blade abrasion even, guaranteed moving cutting knife when action, cutting edge is sharp, thereby guarantees the efficient of cut-out;
5, heating sealing mechanism function is the bonded adhesives on the fusing Hot melt adhesive tape.Temperature booster is arranged in the adhesive tape both sides, and heating is pressed on the adhesive tape two sides, and the gluing of assurance adhesive tape is melted fully.The spacing of both sides temperature booster is provided with self-checking device, can be along with packaging bag thickness changes spacing automatically, make temperature booster directly carry out Contact Heating to Hot melt adhesive tape, efficiency of heating surface height, energy resource consumption is few, and after packaging bag is passed through, can automatically reset, make and seal sealing of the various material package bags of functional adaptation;
6, the rolling mechanism function is that the Hot melt adhesive tape after the heating is added certain pressure, makes Hot melt adhesive tape and packaging bag fully bonding.Backer roll has also adopted one-sided lag function, and pressure roller can both evenly pressurize to the Hot melt adhesive tape that seals length range with the thickness swing of packaging bag, and adjustable in pressure;
7, the transmission of all parts all is by chain gear, and chain strip adoption inner plate is the shaped chain on plane, and chain can be used as common chain gear, plays clamping packaging bag and transport package effect again.
The characteristics of this machine are to integrate paper supply band, paper folding band, paper tape to cut off, add heat sealing and roll extrusion sack function, and function is concentrated, and action makes adjacent two pockets close on the edge shortest distance and can reach 200mm continuously; This machine is easy to safeguard, adjust.
(5) specific embodiments
For example the utility model is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1, the composition of paper tape heat sealing machine comprises frame 8, installation frame is set on the frame, frame is provided with the main drive gear of being made up of reducing motor 9, chain 7 and sprocket wheel, and right-to-left is installed sack blowing mechanism 1, cuts a bag limit mechanism 2, paper foldling mechanism 3, paper supply band and shoutoff mechanism 4, heated sealing mechanism 5, rolling mechanism 6 on installation frame.
In conjunction with Fig. 2-Fig. 4, the sack blowing mechanism is made up of governor valve 21, the blowpipe 22 that links to each other with governor valve and hairbrush 23.
In conjunction with Fig. 5, the sack burring machine is made of a pair of cutting knife 31 that is installed in the cutting knife rotating shaft, and the bearing of cutting knife rotating shaft is arranged on cutting knife one side, and blade automatic play compensation spring 32 is installed on a cutting knife.
In conjunction with Fig. 6-Fig. 8, paper foldling mechanism is made of lower hem plate 41, upper hem plate 43, and flanged plate is outside equipped with anti-inclined to one side plate 42.