CN203638208U - Film transverse heat sealing device of plastic packaging machine - Google Patents
Film transverse heat sealing device of plastic packaging machine Download PDFInfo
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- CN203638208U CN203638208U CN201320718744.8U CN201320718744U CN203638208U CN 203638208 U CN203638208 U CN 203638208U CN 201320718744 U CN201320718744 U CN 201320718744U CN 203638208 U CN203638208 U CN 203638208U
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Abstract
The utility model provides a film transverse heat sealing device of a plastic packaging machine. The film transverse heat sealing device comprises an upper heat sealing knife, a lower heat sealing knife, a driving mechanism, a cylinder, a detector and a controller; a portal frame includes two side frames and a cross beam; the cylinder is fixed on the cross beam; the detector is used for detecting whether materials to be packaged pass through the film transverse heat sealing device and sending detecting signals to the controller; the controller is used for controlling the cylinder to drive the synchronous opposite movement or synchronous reverse movement of the upper heat sealing knife and the lower heat sealing knife through the driving mechanism according to the signals of the detector detecting that the materials to be packaged pass through the film transverse heat sealing device, so that the clamping or opening of the upper heat sealing knife and the lower heat sealing knife is realized. The utility model further provides the plastic packaging machine. As the upper heat sealing knife and the lower heat sealing knife are synchronously gathered and separated, the lower heat sealing knife is far from films when the production is suspended, so that the films are protected from being damaged by baking, and the deviation of heat sealing edges is avoided.
Description
Technical field
The utility model relates to a kind of packaging facilities, relates in particular to a kind of film transversal heat seal device of plastic packaging machine.
Background technology
Mineral wool sound absorption board is a kind of indoor roof dalle that is widely used in the large-scale places such as office building, conference hall, music hall, has practicality and ornamental double effects.The main production process of mineral wool sound absorption board comprises that slip becomes raw sheet after mediation, moulding, dry, cutting, planing and primary coat, raw sheet is made finished product through finishing steps such as embossing, mortise and secondary sprayings again, finished product needs piling, put paper frame or put into after carton, then carrying out film plastic sealing pack.
Chinese patent CN2379402 discloses a kind of plastic sealing machine for automatic plate material package equipment, there is one group of conveying roller the below of described plastic packaging machine, above conveying roller, there is film reversing frame, in film reversing frame, have and between a casing and film reversing frame, form film guiding seam, above reversing frame, be provided with the film roll of sending bilayer film, there is guiding roller below, a side at guiding roller has film thermal seal point to be provided with film transversal heat seal head at the rear of reversing frame, can completely automatically carry out plastic packaging to casing, finally enter baking oven capsulation material is carried out to thermal contraction.
The working process of this plastic packaging machine a: side of bilayer film is first heat-sealed the longitudinal hot-sealing line of bonding formation, through guide bar, reversion enters film guiding seam to the film of the side being then heat-sealed, become the upper side of heat-sealing bag, the film not being heat-sealed is inverted to two sides of film reversing frame equally, film after reversion becomes the downside of heat-sealing bag, by film transversal heat seal head to film transversal heat seal, film-shaped pouch after heat-sealing, casing is directly sent in bag by conveying roller, a film transversal heat seal transversal heat seal, in the middle of horizontal hot line, cut off simultaneously, the half that is cut into the transversal heat seal line of two halves becomes the plastics packed hot-sealing line of casing that plastic packaging is good, second half becomes treats a plastics packed hot-sealing line.Casing by plastic packaging enters baking oven, is the film of thermal contraction due to what adopt, and therefore, after baking oven, the plastic sheeting of plastic packaging shrinks automatically, packs tightly casing, so far, completes the packing of sheet material.
In film plastic package process of assembling, because the lower hot knife of film transversal heat seal device is fixedly mounted in frame, top heat-sealing moves up and down to realize heat-sealing, in the time suspending production, film is stuck on film transfer passage, when going up like this hot knife and pressing film downwards, can cause hot edge seal skew, plastic packaging effect is bad; Because lower hot knife is very near apart from film, the waste heat of lower hot knife will destroy film baking, causes very large waste simultaneously.
Utility model content
The application provides a kind of film transversal heat seal device of plastic packaging machine, and it comprises hot knife, lower hot knife, driver train, cylinder, detector and controller, and described gantry type frame comprises two body side frames and crossbeam, and described cylinder is fixed on described crossbeam,
Described detector is for detection of whether needing packing material by film transversal heat seal device, and detection signal transmit control device;
Described controller is for detecting that according to described detector thing to be packaged is by the signal of film transversal heat seal device, control described cylinder and drive upper hot knife and lower hot knife synchronous relative motion or synchronous backward motion by described driver train, realize the clamping of described upper hot knife and lower hot cutter or open.
Preferably, described driver train comprises two messenger chains that are arranged on described two body side frames, described upper hot knife, the left end of described upper hot knife and the left end of described lower hot knife are separately fixed at the both sides of left side messenger chain, and the right-hand member of described upper hot knife and the right-hand member of described lower hot knife are separately fixed at the both sides of right side messenger chain.
Preferably, two body side frames of described gantry type frame are provided with riser guide, and described upper hot knife and lower hot cutter slide up and down along described riser guide.
Preferably, described detector is photoelectric switch or approach switch.
Preferably, also comprise temperature sensor, and be arranged on the electric heater unit in described upper hot knife and lower hot cutter,
Described temperature thermocouple is for detection of the temperature of described upper hot knife and lower hot knife, and detection signal is sent to described controller;
Described controller, according to the detection signal of described temperature sensor, is controlled the heating power of electric heater unit, and the temperature of described upper hot knife and lower hot knife is kept in OK range.
Preferably, described temperature sensor is temperature thermocouple.
Compared with relevant technologies, the beneficial effect of the utility model embodiment is as follows:
1, the plastic packaging machine of the utility model embodiment and put film system, by arranging a film discharging roller group, rotating frame and the first detector.Because film is through film discharging roller group and rotating frame, can become to film the longer film that prestores between bagging apparatus in film discharging roller group like this.Become the moment of bag by film at thing to be packaged, thing meeting tractive film to be packaged, film driven rotary framework rotation again, discharges the length of once packing required film, discharges film in this moment without film roll, just can complete.
Simultaneously rotating frame rotation through the detection range of the first detector, the first detector just can detect rotating frame, controller detects the signal of rotating frame according to the first detector, control the bilayer film that film discharging roller group discharges predetermined length (packing the length of required film), rotating frame gravitate returns to initial condition, get ready for discharge once packing next time, thereby make film send length and thing blister-pack length to be packaged matches, guaranteed the continuity of producing.
2, the plastic packaging machine of the utility model embodiment and delivery system, thing to be packaged arrives after the mouth of the first feedway, controller detects and on the first feedway, needs after the signal of packing material according to the second detector, control propelling unit promotes thing to be packaged and becomes bagging apparatus and film transversal heat seal device by film, arrive the second feedway, avoid becoming the problem in frame because thing tractive to be packaged drag of film rests on film.
3, the plastic packaging machine of the utility model embodiment and film become bagging apparatus, film to become bag frame, after can realizing bilayer film and separating, joint is rationally overlapping while being formed pocket-like, solve dual-side film and easily caused both sides film outwards to slide, the problem that the dual-side film of bag downside can not be overlapping.
Film forms pocket-like after film becomes bag frame, only needs transversal heat seal, then by being tamping after baking oven, just can complete packing, has saved longitudinal heat-sealing operation of relevant technologies.
4, upper hot knife of the present utility model and lower hot knife close up simultaneously, separate simultaneously, can be away from the film in transfer passage in the time suspending production, and protective film is not destroyed by barbecue.
5, the plastic packaging machine of the utility model embodiment, the degree of automation of the plastic packaging equipment of the utility model embodiment is high, substantially can reach operatorless degree on whole conveyor line.Another advantage of the present utility model is that production efficiency is high, cost is low, profitable.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the plastic packaging machine of the utility model embodiment;
Fig. 2 is the schematic diagram of the plastic packaging machine of the utility model embodiment;
Fig. 3 is the schematic diagram of the plastic packaging machine of the utility model embodiment;
Fig. 4 is the propelling unit of the utility model embodiment and the schematic diagram of jacking system;
Fig. 5 is the propelling unit of the utility model embodiment and the schematic diagram of jacking system;
Fig. 6 is that the utility model embodiment bilayer film is become bag frame and formed bag-shaped schematic diagram by film;
Fig. 7 is that Fig. 6 A – A is to generalized section;
The film that Fig. 8 is the utility model embodiment with 9 becomes the schematic diagram of bag frame;
Figure 10 is that the thing to be packaged of the utility model embodiment is wrapped in the schematic diagram in bag;
Figure 11 is the schematic diagram of the film transversal heat seal device of the utility model embodiment;
Reference numeral: 1-rotating frame, 11-first side pole, 12-middle support rod, 13-second side pole, 14-weight linear meter, 15-clump weight, 21-pair roller, 33-the first guide bar, 32-the second guide bar, 33-the 3rd guide bar, 34-the 4th guide bar, 35-the 5th guide bar, 36-divides film fork, 4-film roll, 51-the first feedway, 511-belt conveyor, 52-the second feedway, 53-propelling unit, 531-the first cylinder, 532-piston rod, 533-push pedal, 54-jacking system, 541-the second cylinder, 542-rotating shaft, 543-crane, 544-the first stock, 545-the first quarter butt, 546-the second stock, 547-the second quarter butt, 6-film becomes bag frame, 61-cross-tie body, 62-vertical supporting body, 63-base plate, 64-folding line, 7-film transversal heat seal device, 71-gantry type frame, 72-the 3rd cylinder, the upper hot knife of 73-, hot knife under 74-, 75-messenger chain, 76-riser guide, 77-hot edge seal, 8-baking oven, 91-the first detector, 92-the second detector, 93-the 3rd detector, 94-the 4th detector
The specific embodiment
Hereinafter in connection with accompanying drawing, embodiment of the present utility model is elaborated.It should be noted that, in the situation that not conflicting, the combination in any mutually of the feature in embodiment and embodiment in the application.
Plastic packaging equipment of the present utility model comprises that delivery system, film become bagging apparatus, film transversal heat seal device 7, baking oven 8 and master controller.Delivery system becomes bagging apparatus, film transversal heat seal device 7 and baking oven 8 for delivery of thing to be packaged by film; Film becomes bagging apparatus for film being turned into the bag-shaped of parcel thing to be packaged; Sealing film transversal heat seal device 7 is for cutting off film and completing the transversal heat seal of film; Baking oven 8 is for carrying out thermal contraction to film.
In the present embodiment, plastic packaging machine can also comprise the film system of putting, as shown in Figure 1, put film system and comprise film discharging roller group, rotating frame 1, film roll 4, the first detector 91 and the first controller, rotating frame 1 and film discharging roller group are all arranged on film and become the top of bagging apparatus.
Rotating frame 1 comprises the center pole being rotated as center shaft, the first side pole 11 that is positioned at center pole one side.Film passes through film discharging roller group, first side pole, middle support rod successively, then arrives film and becomes bagging apparatus, in the time that thing to be packaged becomes bagging apparatus by film, can pull film, and film again driven rotary framework rotation is rotated around center shaft.
As shown in Figure 2, in order to make film reserved longer length on rotating frame 1, can above rotating frame 1, be provided with the first guide bar 31, between first side pole 11 and middle support rod 12, be provided with second side pole 13, film passes through film discharging roller group, first side pole 11, the first guide bar 31, second side pole 13, middle support rod 12 successively, then arrive film and become bag frame 6, thing to be packaged is like this in the time of tractive film, both film can rotate by driven rotary framework 1, the longer film of once leaving behind again, with the packing material that adapts to grow.
For balance first side pole 11 and second side pole 13 weight, make the initial condition of rotating frame 1 keep inclination certain angle, opposite side that can also middle support rod 12 is provided with weight linear meter 14, can also on weight linear meter 14, increase a clump weight 15.Initial condition: be positioned at the first side pole 11 of middle support rod 12 1 sides and the below that second side pole 13 mediates pole 12, and the top that the weight linear meter 14 that is positioned at middle support rod 12 opposite sides mediates pole 12, rotating frame 1 inclination certain angle, angle is 30-60 °.
Film discharging roller group comprises one group of pair roller 21 and the servomotor that drives pair roller 21 to rotate.Pair roller 21 comprises driven roller and driven voller, and driven roller and driven voller be arranged in parallel, and the roll surface of driven roller presses to the roll surface from roller, in the time of work, film passes through between driven roller and driven voller, in the time that servomotor drives driven roller to rotate, can pull film like this.In order to increase the friction force that pulls film, can also be provided with on the surface of driven roller and/or driven voller the bump of multiple projections.
For the film that rotating frame 1 is sent is arrived after film one-tenth bag frame 6, the better effect that realizes guiding and upset, put the second guide bar 32 and the 3rd guide bar 33 that film system can also comprise the top that is arranged on film one-tenth bag frame 6, film becomes a bag frame 6 through film discharging roller group, first side pole 11, middle support rod 12, the second guide bar 32, the 3rd guide bar 33, film successively like this.
Put film system and can also comprise the 4th guide bar 34 and the 5th guide bar 35 that film are directed to pair roller 21, and point film fork 36.The film that film roll 4 is sent so first, through the 4th guide bar 34, point film fork 36 and the 5th guide bar 35, arrives pair roller 21, then is sent the film (predetermined length is the length of a required film of plastic packaging) of predetermined length by pair roller 21.
Because film has smooth surface, when by first side pole 11, second side pole 13, middle support rod 12, the first guide bar 31, the second guide bar 32, the 3rd guide bar 33, the 4th guide bar 34 and the 5th guide bar 35, can slip over and change direction from the surface of the above-mentioned body of rod, therefore do not need to rotate the body of rod, can adopt the fixing body of rod.Certainly, as interchangeable enforcement, the body of rod also may instead be the roll body with S. A..
Because film is through film discharging roller group and rotating frame 1, can become to film the longer film that prestores between bagging apparatus in film discharging roller group like this.Become the moment of bag by film at thing to be packaged, thing meeting tractive film to be packaged, film drives rotating frame 1 to rotate, and discharges the length of once packing required film, discharges film in this moment without film roll 4, just can complete.
Whether the first detector 91 rotates through desired location for detection of rotating frame 1, and signal is sent to controller; The first detector 91 can be arranged on the below of rotating frame 1 upper semisection, also can be arranged on other place of rotating frame 1, as long as rotating frame rotates, the first detector 91 can detect just passable.Desired location is detection position or the detection range of the first detector 91.The first controller detects the signal of rotating frame 1 according to the first detector 91, judge that rotating frame 1 rotates, control the operation of film discharging roller group, from film roll 4, extract predetermined length out, the film of (packing the length of required film), rotating frame 1 gravitate returns to initial condition, gets ready for discharge once packing next time, thereby make film send length and thing blister-pack length to be packaged matches, guaranteed the continuity of producing.When film discharging roller group discharges after the film of predetermined length, controller control film discharging roller group is out of service, and rotating frame 1 rotates backward and is returned to initial condition under Action of Gravity Field.
Delivery system can adopt as the feedway of Chinese patent CN2379402 and carrying method, i.e. the method for employing " there is one group of conveying roller the below of plastic packaging machine, has film reversing frame the upper master of conveying roller " as stated in the Background Art.In order to have solved because film need to be through film guiding seam, thereby cause thing tractive to be packaged drag of film larger, cause and easily stop in film reversing frame and casing, cause whole plastic packaging machine problem out of service, the present embodiment can adopt new technical scheme, as shown in Figure 3, delivery system comprises the first feedway 51, the second feedway 52, propelling unit 53, jacking system 54, the second detector 92 and second controller.
As shown in Figure 3, the first feedway 51 comprises the belt conveyor 511 of two coaxial drive or carries crawler belt, the second feedway 52 is positioned at the front of the first feedway 51, also comprise the belt conveyor of two coaxial drive or carry crawler belt, and the first feedway 51 is carried to be packaged the sending in baking oven 8 of coming.
If Fig. 4 is that propelling unit is in rising the schematic diagram of state; Fig. 5 is that propelling unit is in falling the schematic diagram of state; As shown in Figures 4 and 5, propelling unit 53 comprises the first cylinder 531 between two belt conveyors 511 that are arranged on the first feedway 51, the first cylinder 531 horizontal positioned, the first cylinder 531 is provided with piston rod 532 and push pedal 533, when piston rod 532 stretches out, the thing to be packaged that push pedal 533 can promote on the first feedway 51 becomes bag frame 6 by film, then arrives the second feedway 52.
Lifting mechanism is connecting rod transmission type mechanism, concrete structure is: the lower end of the second cylinder is fixed on by rotating shaft 542 in the frame of the first feedway, the piston rod of the second cylinder is connected with one end of the first stock 544 by rotating shaft 542, the first stock 544 is fixed on crane 543 by center shaft, crane 543 is fixed in the frame of the first feedway, the first stock 544 can rotate around center shaft, and the other end of the first stock 544 is connected with the first quarter butt 545 of the first cylinder bottom by rotating shaft 542 again; Second stock 546 one end are fixed on and are fallen on frame by rotating shaft 542, and the other end is connected with the second quarter butt 547 of the first cylinder bottom by rotating shaft 542; In the time that the second stock 546 is positioned at the first stock 544 front end, the first quarter butt 545 is fixed on the rear end, bottom of the first cylinder in the mode of welding, and the second quarter butt 547 is fixed on the front end of the first cylinder bottom in the mode of welding; In the time that the second stock 546 is positioned at the first stock 544 rear end, the first quarter butt 545 can be fixed by the mode of welding the front end of the first cylinder bottom, and the second quarter butt 547 is fixed on the rear end of the first cylinder bottom in the mode of welding.
In order to detect the packing material that whether needs on the first feedway 51, can be above the first feedway 51 or side be provided with the second detector 92, such the second detector 92 detects for detection of whether needing packing material on the first feedway 51, second controller is according to the signal of the second detector 92, control the second cylinder 541 and rise the first cylinder 531, and then promote thing to be packaged and become bagging apparatus by film, arrive the second feedway 52, realize the film wrapped of thing to be packaged.
As shown in Figure 3, be provided with film at the mouth of the first feedway 51 and become bagging apparatus, as disposable way of example, also can between the mouth of the first feedway 51 and the input end of the second feedway 52, be provided with film and become bagging apparatus.Film becomes bagging apparatus for first film being separated, fixed, and is turned into pocket-like, then the thing to be packaged that becomes bagging apparatus by film is wrapped up.
Film becomes bagging apparatus can adopt as the technical scheme of Chinese patent CN2379402, " film becomes bagging apparatus to adopt film reversing frame and casing in i.e. employing, in film reversing frame, have and between a casing and film reversing frame, form film guiding seam, and a side of bilayer film is first heat-sealed the longitudinal hot-sealing line of bonding formation, through guide bar, reversion enters film guiding seam to the film of the side being then heat-sealed, become the upper side of heat-sealing bag, the film not being heat-sealed is inverted to two sides of film reversing frame equally, film after reversion becomes the downside of heat-sealing bag, by film transversal heat seal head to film transversal heat seal, the technical scheme of the film-shaped pouch after heat-sealing.Easily cause both sides film outwards to slide in order to solve dual-side film, the problem that the dual-side film of bag downside can not be overlapping, the present embodiment can adopt new technical scheme, as follows:
Film becomes bagging apparatus can comprise that film becomes bag frame 6.Fig. 6 is that the utility model embodiment bilayer film is become bag frame and formed bag-shaped schematic diagram by film, and in figure, the direction of arrow is casing becomes bag frame direction by film, i.e. the transmission direction of the first feedway.As shown in Fig. 6 and 8, film becomes bag frame for comprising superposed cross-tie body 61, the vertical supporting body 62 that is positioned at cross-tie body 61 both sides and is connected with cross-tie body 61, and two base plates that are positioned at bottom and are connected with both sides vertical supporting body 62 respectively, two bottom parts are staggered, and the vertical supporting body 62 of cross-tie body 61, both sides and two base plates surround an oblong or foursquare passage.Cross-tie body 61 is a top board or horizontal quadrilateral frame, and vertical supporting body 62 can be a riser or vertical quadrilateral frame.Base plate has the first edge, the second edge and linear edge, and first side edge is connected with vertical supporting body 62 respectively, and the second edge is positioned at film and becomes a bag outlet for frame passage, and the first edge, the second edge and linear edge successively head and the tail are connected.
As shown in Figure 9, in order to make into after bag shape, the film two edges of its bottom surface are overlapping better, the linear edge of two base plates 63 can replace with curved edge, be that base plate has the first edge, the second edge and curved edge, first side edge is connected with vertical supporting body 62 respectively, and the second edge is positioned at film and becomes a bag outlet for frame passage, and the first edge, the second edge and curved edge successively head and the tail are connected.
The front end of both sides vertical supporting body 62 is provided with oblique edge, and the angle of oblique edge and level is 30-60 °.Can make like this film better turn over and wrap up in film one-tenth bag frame 6 vertical supporting body 62 inner sides, both sides near two parts of centre portion.
Because film is easily scratched, can become the edge of bag frame 6 that flexible material is set at film, film becomes the corner of bag frame 6 to be set to the corner of rounding off processing.
As shown in Figures 6 and 7, film of the present utility model can adopt bilayer film, be that bilayer film is formed folded by thin film, poststack one side is had to folding line 64, and side two film edge alignment, on film roll 4, be wound with such bilayer film, can save like this welding side seam of bilayer film or the technique of heat-sealing docking, improve the intensity of blister-pack.In the time adopting bilayer film, the process that bilayer film forms bag is as follows: the direction of the second guide bar 32 and the 3rd guide bar 33 is identical with throughput direction, bilayer film is from after the second guide bar 32 and the 3rd guide bar 33, launch a little, the centre portion film with folding line 64 forms the triangle of just putting, the centre portion film with folding line 64 from film become bag frame cross-tie body 61 inner side enter, then to the extension of throughput direction, form the upper side of bag; Film enters from the inner side of both sides vertical supporting body 62 respectively near two parts of centre portion, then extends to throughput direction, forms the two sides of bag; Film one lateral edge portions is descending along the lateral surface of a side vertical supporting body 62, then be wrapping to the bottom surface of a base plate 63, translate into again it above base plate 63, then extend (being the direction that in Fig. 6, dotted line extends) to throughput direction, film opposite side marginal portion is also descending along the lateral surface of opposite side vertical supporting body 62, then be wrapping to the bottom surface of another piece base plate 63, translate into again it above base plate 63, under the guiding of two base plates 63, the both sides of the edge part of film is overlapping up and down, thereby form dotted portion as shown in Figures 6 and 7, be positioned at bag downside.
As disposable embodiment, film also can adopt single thin film, only need to adjust the direction of lower guide bar, make the direction of the second guide bar 32 and the 3rd guide bar 33 vertical with throughput direction, single thin film is after the second guide bar 32 and the 3rd guide bar 33, and direct descending arrival film becomes bag frame 6, and the centre portion of film enters inner side from film one-tenth bag frame 6, then to the extension of throughput direction, form the upper side of bag; Film enters from the inner side of both sides vertical supporting body 62 respectively near two parts of centre portion, then extends to throughput direction, forms the two sides of bag; Film one lateral edge portions is descending along the lateral surface of a side vertical supporting body 62, then be wrapping to the bottom surface of a base plate 63, translate into again it above base plate 63, then extend to throughput direction, film opposite side marginal portion is descending along the lateral surface of opposite side vertical supporting body 62, is then wrapping to the bottom surface of another piece base plate 63, translate into again it above base plate 63, thereby film both sides of the edge are under the guiding of two base plates 63, and the both sides of the edge part of film is overlapping up and down, thereby form bag downside.
Film transversal heat seal device can adopt the film transversal heat seal device as Chinese patent CN2379402, and realizes the method for transversal heat seal, and film transversal heat seal device moves hot knife 73, and the motionless technical scheme of lower hot knife.For solving because the lower hot knife of film transversal heat seal device is fixedly mounted in frame, top heat-sealing moves up and down to realize heat-sealing, in the time suspending production, film is stuck on film transfer passage, when going up like this hot knife and pressing film downwards, can cause hot edge seal skew, plastic packaging effect is bad; Because lower hot knife is very near apart from film, the waste heat of lower hot knife will destroy film baking, causes very large waste simultaneously.
In the present embodiment, in order to solve the problem that in prior art, film lateral means exists, can adopt new technical scheme, as shown in Figure 1, film transversal heat seal device 7 is arranged on the front that film becomes bag frame 6 to export, and can arrange between the first feedway 51 and the second feedway 52.As shown in figure 11, film transversal heat seal device 7 comprises gantry type frame 71, upper hot knife 73, lower hot knife 74, driver train, the 3rd cylinder 72, detector and controller, gantry type frame 71 comprises two body side frames and crossbeam, the 3rd cylinder 72 is fixed on crossbeam, and the piston rod of the 3rd cylinder 72 is connected with upper hot knife 73.Driver train comprises two messenger chains 75 that are arranged on two body side frames, upper hot knife 73, the left end of the left end of upper hot knife 73 and lower hot knife 74 is separately fixed at the both sides of left side messenger chain 75, and the right-hand member of the right-hand member of upper hot knife 73 and lower hot knife 74 is separately fixed at the both sides of right side messenger chain 75.Like this in the time that the 3rd cylinder 72 pulls upper hot knife 73 to move downward, upper hot knife 73 drives chain to rotate (rotating by Figure 11 direction of arrow) again, chain drives lower hot knife 74 upward movements again, thereby the move toward one another of hot knife 73 and lower hot knife 74 in realization, otherwise, complete counter motion.
Driver train can also comprise the riser guide 76 arranging on 71 liang of body side frames of gantry type frame, and upper hot knife 73 and lower hot knife 74 slide up and down along riser guide 76.
The 3rd detector is for detection of whether needing packing material by film transversal heat seal device 7, and detection signal transmit control device; The 3rd cylinder 72 is for detecting that according to the 3rd detector thing to be packaged is by the signal of film transversal heat seal device 7, control the 3rd cylinder 72 and drive driver train, thereby hot knife 73 and lower hot knife 74 synchronous relative motions or synchronous backward motion in drive, the clamping of hot knife 73 and lower hot knife 74 or open in realization, go up like this hot knife 73 and lower hot knife 74 and both can carry out transversal heat seal to forming bag-shaped film, can cut off again film.
Film transversal heat seal device 7 also comprises temperature sensor, and temperature sensor can be temperature thermocouple.Film transversal heat seal device 7 also comprises the electric heater unit being arranged in hot knife 73 and lower hot knife 74, go up like this hot knife 73 and lower hot knife 74 can adopt Electric heating, electro heat stainless steel tube is set in knife rest, heat conducts to the edge of a knife, thereby sealing cutter is sealed film in cutting off film.
Thermometric thermal transmitter is for detection of the temperature of upper hot knife 73 and lower hot knife 74, and detection signal is sent to controller; Controller, for according to the detection signal of temperature sensor, is controlled the heating power of electric heater unit, and the temperature of hot knife 73 and lower hot knife 74 is kept in OK range.
Be provided with the 3rd detector 93, the three detectors 93 in above the second feedway 52 or side and whether need packing material on for detection of the second feedway 52.Thing to be packaged enters film and becomes after bagging apparatus, drive film to arrive after the second feedway 52, the 3rd detector 93 can detect thing to be packaged, then the 3rd controller detects and needs the signal of packing material according to the 3rd detector 93, immediately or delay predetermined time, control sealing film transversal heat seal device 7 and cut off film, heat-sealing simultaneously forms hot edge seal 77, and thing to be packaged is wrapped in bag-shaped film, thereby complete the transversal heat seal of film, thereby form state as shown in figure 10, in the middle of its upper surface, there is folding line 64, lower part two film edge partly overlap, rear and front end has hot edge seal 77, thing to be packaged (as casing) is wrapped in bag-shaped film.
Above the second feedway 52 or side the 4th detector 94 can be selectively set again, the function of the 4th detector 94 is identical with the function of the 3rd detector 93, also for detection of whether needing packing material on the second feedway 52, difference is: due to the 4th detector 94 to the distance of film transversal heat seal device 7 than the 3rd detector 93 arrive film transversal heat seal device 7 distance some, thing to be packaged like this arrives after the second feedway 52, first through the 3rd detector 93, need again a period of time to be detected by the 4th detector 94, such the 3rd controller is according to the signal of the 4th detector, after long thing to be packaged arrives completely and wraps up, just control film transversal heat seal device 7 and cut off the transversal heat seal that forms bag-shaped film and complete film, thereby realize the plastic packaging of long thing to be packaged.As disposable embodiment, the 4th detector 94 also can be set, only need to the 3rd detector 93 detect to be packaged after, set the schedule time, then cut off and heat sealing film, the schedule time is changeable, the speed of moving according to the length of packing material and the second feedway 52 is determined, in the time of the longer packing material of packing, can set the longer schedule time, if packing material is shorter, can set the shorter schedule time.
The first detector 91, the second detector 92, the 3rd detector 93 and the 4th detector 94 can be selected conventional sensor, as photoelectric switch, approach switch etc.
As shown in Figure 3, plastic packaging equipment also comprises the baking oven 8 for heat-shrinkable film.Baking oven 8 is arranged on the second feedway 52, or arranges on the next feedway in the second feedway 52 fronts.The casing that is enclosed with film enters baking oven 8, and because employing is heat-shrinkable film, therefore, after baking oven 8, the plastic sheeting of plastic packaging shrinks automatically, packs tightly thing to be packaged (as casing), and so far, the packing of sheet material completes.
Master controller is the master controller of integrated the first controller, the second control and the 3rd controller, can comprise Programmable Logic Controller and touch-screen, can receive the signal of the first detector 91, the second detector 92, the 3rd detector 93 and the 4th detector 94 simultaneously, control film discharging roller group, the first cylinder 531 and the second cylinder 541, film transversal heat seal device 7 and move accordingly.
In the utility model, the concrete operation step of plastic packaging machine is as follows:
Film is from film roll 4 is extracted out, first through the 4th guide bar 34 and the 5th guide bar 35, pass through successively again pair roller 21, first side pole 11, the first guide bar 31, second side pole 13, middle support rod 12, the second guide bar 32, the 3rd guide bar 33, arrive film and become bag frame 6, when become bag frame 6 by film, film is realized turning over and is wrapped up in and form pocket-like, after 7 heat-sealings of film transversal heat seal device, film shape is if accompanying drawing 6 and 7 is as the pocket-like film showing, in the middle of its upper surface, there is folding line 64, lower part two film edge partly overlap, there is foremost hot edge seal 77.
Thing to be packaged arrives after the mouth of the first feedway 51, thing to be packaged is detected by the second detector 92, then signal is sent to master controller, master controller detects and on the first feedway 51, needs the signal of packing material according to the second detector 92, control the second cylinder 541 and rise the first cylinder 531 by lifting mechanism, and then control the first cylinder 531 and promote thing to be packaged and becomes a bag frame 6 by film, and then the piston rod 532 of withdrawal the first cylinder 531, then control the second cylinder 541 and drive lifting mechanism counter motion, thereby fall the first cylinder 531, return to the initial condition of the first cylinder 531 and the second cylinder 541.In the time that thing to be packaged becomes bag frame 6 by film, be introduced into pocket-like film, then drive pocket-like film to move forward, arrive after the second feedway 52, the thing to be packaged that is enclosed with film is detected by the 3rd detector 93, then signal is sent to master controller, master controller detects and on the second feedway 52, needs the signal of packing material according to the 3rd detector 93, immediately or after delay predetermined time, controlling film transversal heat seal device 7 seals pocket-like film, in the middle of transversal heat seal limit 77, cut off simultaneously, form two halves hot edge seal 77, half becomes the hot edge seal 77 that is enclosed with thing to be packaged, second half becomes waits for the hot edge seal 77 that enters thing to be packaged, thereby form state as shown in figure 10, in the middle of its upper surface, there is folding line 64, lower part two film edge partly overlap, rear and front end has hot edge seal 77, thing to be packaged (as casing) is wrapped in bag-shaped film.
When become bag frame 6 by film, because driving pocket-like film, thing to be packaged travels forward, and the film of tractive can pull rotating frame 1 to rotate; When the first detector 91 detects rotating frame 1 and signal is sent to master controller, master controller detects rotating frame 1 signal according to the first detector 91 again, judge that rotating frame 1 rotates, controlling driven by servomotor pair roller 21 rotates again, after film Deng release predetermined length, control again servomotor and quit work, rotating frame 1 under Action of Gravity Field contrarotation to initial condition, for next time packing get ready.
Finally, thing to be packaged enters after baking oven 8, and the film that is wrapped in outside carries out thermal contraction, and then output, cooling, has just completed the plastic packaging of packing material.
The degree of automation of plastic packaging equipment of the present utility model is high, substantially can reach operatorless degree on whole conveyor line.Plastic packaging production efficiency of equipment of the present utility model is high, cost is low, profitable.
Although the disclosed embodiment of the utility model as above, the embodiment that described content just adopts for the ease of understanding the utility model, not in order to limit the utility model.Technical personnel under any the utility model in technical field; do not departing under the prerequisite of the disclosed spirit and scope of the utility model; can do any modification and variation what implement in form and in details; but scope of patent protection of the present utility model, still must be as the criterion with the scope that appending claims was defined.
Claims (6)
1. a film transversal heat seal device for plastic packaging machine, is characterized in that, it comprises hot knife, lower hot knife, driver train, cylinder, detector and controller, and described gantry type frame comprises two body side frames and crossbeam, and described cylinder is fixed on described crossbeam,
Described detector is for detection of whether needing packing material by film transversal heat seal device, and detection signal transmit control device;
Described controller is for detecting that according to described detector thing to be packaged is by the signal of film transversal heat seal device, control described cylinder and drive upper hot knife and lower hot knife synchronous relative motion or synchronous backward motion by described driver train, realize the clamping of described upper hot knife and lower hot cutter or open.
2. film transversal heat seal device according to claim 1, wherein, described driver train comprises two messenger chains that are arranged on described two body side frames, described upper hot knife, the left end of described upper hot knife and the left end of described lower hot knife are separately fixed at the both sides of left side messenger chain, and the right-hand member of described upper hot knife and the right-hand member of described lower hot knife are separately fixed at the both sides of right side messenger chain.
3. film transversal heat seal device according to claim 1, wherein, two body side frames of described gantry type frame are provided with riser guide, and described upper hot knife and lower hot cutter slide up and down along described riser guide.
4. film transversal heat seal device according to claim 1, wherein, described detector is photoelectric switch or approach switch.
5. according to the film transversal heat seal device described in any one in claim 1-4, wherein, also comprise temperature sensor, and be arranged on the electric heater unit in described upper hot knife and lower hot cutter,
Described temperature thermocouple is for detection of the temperature of described upper hot knife and lower hot knife, and detection signal is sent to described controller;
Described controller, according to the detection signal of described temperature sensor, is controlled the heating power of electric heater unit, and the temperature of described upper hot knife and lower hot knife is kept in OK range.
6. film transversal heat seal device according to claim 5, wherein, described temperature sensor is temperature thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718744.8U CN203638208U (en) | 2013-11-14 | 2013-11-14 | Film transverse heat sealing device of plastic packaging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718744.8U CN203638208U (en) | 2013-11-14 | 2013-11-14 | Film transverse heat sealing device of plastic packaging machine |
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| Publication Number | Publication Date |
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| CN203638208U true CN203638208U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320718744.8U Expired - Fee Related CN203638208U (en) | 2013-11-14 | 2013-11-14 | Film transverse heat sealing device of plastic packaging machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015070508A1 (en) * | 2013-11-14 | 2015-05-21 | 北新集团建材股份有限公司 | Plastic packaging machine and film discharging system, conveyor system and thin film bag-forming rack thereof |
| CN106679283A (en) * | 2016-12-29 | 2017-05-17 | 张春慧 | Cooling device |
| CN107814008A (en) * | 2017-11-30 | 2018-03-20 | 上海紫江彩印包装有限公司 | A kind of application method for sealing cutter, heat-sealing device and heat-sealing device |
| CN109229473A (en) * | 2018-08-27 | 2019-01-18 | 广州祺盈科技有限公司 | A kind of sealing wrapping machine for the cold packaging of cigarettes |
-
2013
- 2013-11-14 CN CN201320718744.8U patent/CN203638208U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015070508A1 (en) * | 2013-11-14 | 2015-05-21 | 北新集团建材股份有限公司 | Plastic packaging machine and film discharging system, conveyor system and thin film bag-forming rack thereof |
| CN106679283A (en) * | 2016-12-29 | 2017-05-17 | 张春慧 | Cooling device |
| CN107814008A (en) * | 2017-11-30 | 2018-03-20 | 上海紫江彩印包装有限公司 | A kind of application method for sealing cutter, heat-sealing device and heat-sealing device |
| CN107814008B (en) * | 2017-11-30 | 2023-09-08 | 上海紫江彩印包装有限公司 | Heat sealing cutter, heat sealing device and use method of heat sealing device |
| CN109229473A (en) * | 2018-08-27 | 2019-01-18 | 广州祺盈科技有限公司 | A kind of sealing wrapping machine for the cold packaging of cigarettes |
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