CN207404064U - A kind of folding device of hand plastic bag - Google Patents

Abstract

The utility model discloses a kind of folding devices of hand plastic bag, including rack, press plate mechanism, it is characterized in that, stem folding turnover is additionally provided in the rack, handle turnover board is additionally provided in the both sides of stem folding turnover, multiposition hoistable platform is additionally provided with behind stem fold afterbody folding turnover, bag supporting mechanism is additionally provided with below afterbody folding turnover.In the course of work of the utility model, the pressing plate folds into afterbody by stem and folds through entire folding work process, accomplishs without any letup.It is simple in structure, it is stable and reliable in work.

Description

A kind of folding device of hand plastic bag

Technical field

The utility model is related to a kind of folding devices of hand plastic bag.

Background technology

The hand plastic bag produced by Bag Making Machine, generally using tens sacks as a pile.For ease of storing, transporting, selling It sells and uses, these polybags in a pile are generally also needed to by three times or four foldings, then being needed for longer handbag The 5th folding is carried out, strip is eventually folded to, is then tied up or be packaged into packaging bag.Hand plastic bag is also referred to as side Faeces bag, plastic bag, shopping bag, because thereon, there are two gain the name during handle for mask.Its folding process is：Firstly the need of by two plastics The handle 60 of bag folds respectively to centre, then folds back again in the position shown in stem fold line 61 second, Ran Houzai In the position of afterbody fold line 62, doubling is once (as shown in Figure 7) again.It to be also folded again at for longer sack or twice. Up to the present, these above-mentioned folding work overwhelming majority are all completed by manually.The applicant is also once disclosed patent Number be 201110081121 entitled " handle folding device of full-automatic plastic bag folding strapper " (abbreviation documents once 1) patent application is also disclosed entitled " the handle foldings of two-wire plastic bag folding press of Authorization Notice No. CN103318698B The patent of invention (hereinafter referred to as documents 2) of device "；Authorization Notice No. was also disclosed：Entitled " the plastics of CN203450477U A kind of handle folding device of bag folding machine " (hereinafter referred to as documents 3).But the handle involved by above-mentioned documents folds Device folds two convenient handles to centre using with the mode that push plate moves back and forth, but because pushes away The amplitude that plate is elapsed to both sides is larger, and the volume for causing entire folding machine is wider.And the apparatus structure is complicated, and manufacture is of high cost The problems such as.

The applicant was once disclosed a kind of mandate entitled " one kind of polybag punching machine of Publication No. CN206466289U The utility model patent patent (abbreviation documents 4) of folding device ", the utility model patent include handle folding device, folding Folded turnover panel, pressing plate, pressing plate driving mechanism, hoistable platform mechanism.Although the utility model can will mould under conditions of not tying up Material bag is folded up, but its handle fold mechanism is each independent with tail folding device, and structure is more complicated；Besides comparison text Technology contents disclosed in part 4 can only be folded three times, and then need to carry out the 4th time for some longer polybags Five foldings.

Utility model content

Technical problem to be solved in the utility model is：A kind of folding device of hand plastic bag, for being carried to having The hand plastic bag of hand state is folded, and a kind of a kind of compact-sized, stable and reliable in work folding dress is provided for Bag Making Machine It puts.

To realize above-mentioned technical purpose, the technical solution of the utility model is：A kind of folding device of hand plastic bag, bag It includes：Rack, press plate mechanism, it is characterised in that：Stem folding turnover is additionally provided in the rack, in the stem folding turnover Both sides are respectively equipped with handle turnover board, and the handle turnover board is connected with swing mechanism, is set on the stem folding turnover There is bag-clamping mechanism, afterbody folding turnover is additionally provided with behind the stem folding turnover, behind the afterbody folding turnover Multiposition hoistable platform is additionally provided with, bag supporting mechanism is additionally provided with below the afterbody folding turnover.

The forepart of the stem folding turnover is trapezoidal, the forepart formed after being folded with two handles of hand plastic bag State is corresponding.As preferred technical solution, the rear side of the stem folding turnover is equipped with shaft, and shaft is rotatably installed in The both sides of rack, one end of shaft are connected with oscillating cylinder.

The handle turnover board is corresponding with the form of the handle of hand plastic bag, and two handle turnover boards are in splayed configuration The both sides of the stem folding turnover are distributed in, the handle turnover board is connected respectively with swing mechanism.For handle to be moulded Two handles of material bag are folded to centre.

As preferred technical solution, the swing mechanism of the handle turnover board includes push rod, swing rod and cylinder, described Handle turnover board on rear side of be hinged in rack, one end of push rod is connected to the bottom surface of the handle turnover board, the pendulum The bottom of bar and cylinder is connected in rack, and the cylinder rod and push rod of the cylinder and the other end of swing rod are hinged.

Swing mechanism as above-mentioned handle turnover board and the swing gas on stem folding turnover and afterbody folding turnover Cylinder is equivalent in effect and effect.Rack can also will be hinged on rear side of stem folding turnover or afterbody folding turnover On, cylinder, push rod, swing rod are then reconnected, turn round axis and pendulum are can be omitted so as to implement the swing mechanism on handle turnover board It takes offence cylinder.

The bag-clamping mechanism, for the Billfold with handle of fold two polybags to be stayed in stem folding turnover, and It is swung with stem folding turnover, prevents stem folding turnover from will roll two handles of polybag well in switching process It scatters.As preferred technical solution, the bag-clamping mechanism includes a kind of oscillating cylinder and claw, oscillating cylinder peace Mounted in the front side of stem folding turnover, the claw is connected on the oscillating cylinder.The pendulum of the stem folding turnover Cylinder of taking offence is equipped with magnetic switch, and after stem folding turnover swing backward to erectility, which can give control One switching signal of system processed resets oscillating cylinder to be controlled to swing claw.

One of numerous embodiments as bag-clamping mechanism, the bag-clamping mechanism be the press plate mechanism pressing plate with Swing mechanism between plate bracket is set, one section of shaft is installed respectively at the rear side both ends of pressing plate, pressing plate is set by shaft rotation It puts on plate bracket, one end connection oscillating cylinder of the shaft enables pressing plate to be swung on plate bracket.

The bag supporting mechanism is arranged below folding turnover, for holding in the palm the medium position of flat polybag, makes polybag It is basic to keep level levelling state.

As preferred technical solution, the bag supporting mechanism is mainly made of cylinder, guide rod, guide rod seat, support bag bar, institute The cylinder stated is mounted in rack up and down, and two guide rods are set in two Slideslips of cylinder, the top of two guide rods and cylinder Cylinder rod is connected on guide rod seat, and position corresponding with above and below the resigning breach of folding turnover sets multiple support bags on guide rod seat Bar.

One of multiple embodiments as bag supporting mechanism, the bag supporting mechanism include a kind of platform trap door support, make folding Turnover panel and oscillating cylinder are mounted on the platform trap door support, and guide rod cylinder is connected with below the platform trap door support.

As preferred technical solution, the stem folding turnover is in the position with the resigning breach correspondence on pressing plate Minitype cylinder is installed, minitype cylinder is mounted below stem folding turnover, its cylinder rod can be stretched when minitype cylinder works For the surface of folding turnover, polybag is pushed down on folding turnover.As another alternative of minitype cylinder, be Resigning breach is set on stem folding turnover, compression bar is set on methods, rack on resigning breach is corresponding.The compression bar includes A kind of cylinder, the resigning breach that can be penetrated when cylinder rod stretches out on stem folding turnover and pressing plate push down polybag in afterbody On folding turnover, convenient for the reliable extraction of pressing plate.

As preferred technical solution, the folding turnover is equipped with resigning breach, for being folded in folding turnover When on pressing plate, the resigning breach in resigning breach and pressing plate on turnover panel is interlaced, and polybag is fixed on folding platform. As another embodiment, compression bar is set on folding platform is corresponding, compression bar can penetrate afterbody folding and turn on methods, rack Resigning breach on plate and pressing plate pushes down polybag on folding platform.

The press plate mechanism includes driving mechanism before and after lower drive mechanism, pressing plate on pressing plate and pressing plate.The pressing plate Forepart is trapezoidal, with two handle turnover board rows into splayed configuration it is corresponding.The effect of the pressing plate mainly by two, when Possesses the effect of template, for the trapezoidal state of pressing plate forepart just as one piece of template, two handles fold up rear polybag Stem form is corresponding with the form of pressing plate forepart；Another effect of the pressing plate is exactly to have the function of backfin plate.

The effect of lower drive mechanism is on the pressing plate：Pressing plate can be driven by the predetermined fold line of hand plastic bag Position is pressed on folding turnover or folding platform, plays the role of being fixed, and is folded respectively with handle turnover board, stem Turnover panel, afterbody folding turnover cooperatively act on implementation and fold.

The front and rear driving mechanism of the pressing plate, for pressing plate to be driven to be moved to stem folding turnover the upper surface of or is driven Dynamic pressure plate stops its front side position corresponding with above and below stem fold line, afterbody fold line position, can also make pressing plate from Through rearwards being extracted out in foldable formed polybag.

As preferred technical solution, lower drive mechanism is by plate bracket, pressing plate pedestal, cylinder, more on the pressing plate Position cylinder, guide rail, sliding block are formed, and pressing plate is mounted on plate bracket, and plate bracket, which slides up and down, to be arranged on pressing plate pedestal, institute It states and cylinder is installed up and down between the bottom of pressing plate pedestal and plate bracket.

As preferred technical solution, driving mechanism includes a kind of multiposition cylinder or electronic slide unit before and after the pressing plate. Sliding block is installed respectively in the left and right ends of pressing plate pedestal, in sliding block corresponding rack both sides difference one guide rail of front and rear installation, is made The pressing plate pedestal of lower drive mechanism is slidably connected at the rear portion of rack by guide rail, sliding block on pressing plate, in the rear side of pressing plate pedestal Multiposition cylinder is installed, the other end of the multiposition cylinder is connected in rack；Another reality as driving mechanism before and after pressing plate Mode is applied, driving mechanism includes a kind of electronic slide unit before and after the pressing plate, and the rear end of the electronic slide unit is hinged in rack, Cylinder is connected between the front end of electronic slide unit and rack.Left and right laterally sets plate bracket on the sliding block of the electronic slide unit, Pressing plate is located on plate bracket.The forepart and pressing plate that electronic slide unit can be driven when cylinder rod works carry out circular motion up and down, The fold line position of polybag can be pressed on when moving downward on folding platform.

The multiposition hoistable platform is located at behind afterbody folding turnover.The multiposition elevating mechanism includes folding Folded platform and elevating mechanism, folding platform are connected on elevating mechanism, and folding platform can exist up and down under the driving of elevating mechanism Multiple positions stop.Folding platform is exactly the workbench of folding device during rise, and folding work is exactly to be carried out on folding platform 's；When folding platform declines, foldable formed polybag is pushed on conveyer belt mechanism or under folding platform When dropping in the gap formed between a plurality of conveyer belt, foldable formed polybag makes by stranded on a plurality of conveyer belt Foldable formed polybag, which is transferred out, to be come.

As preferred technical solution, the multiposition hoistable platform includes folding platform, multiposition cylinder and guide rod, more Position cylinder is mounted in rack, and guide rod is slidably arranged in the both sides of multiposition cylinder, and the folding platform is connected to the guide rod Upper end and multiposition cylinder cylinder rod on.

As the another embodiment of multiposition hoistable platform, the multiposition hoistable platform include folding platform, Two guide rods, three cylinders, the cylinder of a stroke maximum are mounted on the centre of rack or crossbeam, are installed in the both sides of the cylinder The cylinder that one stroke differs, two guide rods are separately mounted to the both sides of cylinder, the upper end of described two guide rods and middle cylinders Cylinder rod on folding platform is installed.

The utility model has the advantages that compared with prior art：Compared with documents 1,2,3, this practicality Two new handle turnover boards just can reliably roll over the handle of two polybags in the case where need not be pushed and pulled to both sides It gathers into folds, so as to which the width of folding machine be dramatically reduced, particularly reduces the width of two-wire folding machine so that folding machine It is compact-sized；Compared with documents 4, the press plate mechanism of the utility model can carry out the work of stem folding device The work of tail folding device can be engaged in, there is dual function, pressing plate folds into afterbody by stem and folds through entire folding The course of work, pressing plate is by forepart to rear portion so that entire folding work accomplishs without any letup, simple and compact for structure, simplifies folding journey Sequence improves work efficiency.And under conditions of same pressing plate is kept, it need to only increase before multiposition hoistable platform One or several folding turnovers, which can be realized, to be folded the 4th time of handle polybag, folds for the 5th time.

Description of the drawings

Fig. 1 is the principle schematic diagram of the utility model embodiment one；

Fig. 2 is the structural principle top view of the utility model embodiment one；

Fig. 3 is the principle schematic diagram of the handle turnover board swing mechanism of the utility model；

Fig. 4 is the stem folding turnover of the utility model embodiment one and the structure diagram of bag-clamping mechanism；

Fig. 5 is the principle schematic diagram of one pressing plate driving mechanism of the utility model embodiment；

Fig. 6 is the structural principle side view of the bag supporting mechanism of the utility model embodiment one；

Fig. 7 is the structural side view of the multiposition hoistable platform of the utility model embodiment one；

Fig. 8 to Figure 11 is the work step schematic diagram of the utility model embodiment one；

Figure 12 is the principle schematic diagram of the utility model embodiment two；

Figure 13 is the structural principle top view of the utility model embodiment two；

Figure 14 is the structural side view of the platform trap door support of the utility model embodiment two；

Figure 15 is the side view of the multiposition hoistable platform of the utility model embodiment two.

In figure：1- racks；2- handle turnover boards；21- push rods；22- cylinders；23- swing rods；3- stem folding turnovers；30- allows Position notch；31 minitype cylinders；32- oscillating cylinders；33- claws；The close switches of 34-；35- oscillating cylinders；4- folding turnovers；40- Resigning breach；41- oscillating cylinders；42- holds in the palm bag bar；43- cylinders；44- guide rods；45- guide rod seats；46- platform trap door supports；47- guide rods Cylinder；48- compression bars；49- compression bars；5- pressing plates；50- resigning breach；51- plate brackets；52- multiposition cylinders；53- pressing plate pedestals； 54- cylinders；55- guide rails；56- sliding blocks；57- sliding blocks；58- guide rails；The electronic slide units of 59-；591- cylinders；6- plastic bags；60- is carried Hand；61- stem fold lines；62- afterbody fold lines；7- folding platforms, 71- multiposition cylinders；72- guide rods；73- cylinders；74- gas Cylinder；75- cylinders.

Specific embodiment

As shown in Fig. 1 to Figure 15, the left side of attached drawing is exactly the so-called front of the utility model, and the right of attached drawing is exactly this reality With it is new it is so-called behind.Below in conjunction with the accompanying drawings the utility model is further described with two embodiments respectively.

Embodiment one, as shown in Figure 1 and Figure 2：The installation stem folding turnover 3 in the forepart of rack 1, in stem folding turnover 3 Both sides handle turnover board 2 is installed respectively.As shown in Figure 3：Two handle turnover boards 2 in splayed configuration are cut with scissors respectively and are connected on machine respectively On frame, a push rod 21 is hinged in the bottom surface of handle turnover board 2, a hinged swing rod on the lower methods, rack of handle turnover board 2 23, cylinder 22 on the lower methods, rack of handle turnover board 2 is installed, then makes the other end, the other end of supporting rod 23 of push rod 21 Together with the handing-over of the cylinder rod end of cylinder 22 (as shown in Figure 3).

Stem folding turnover 3 is rotatably installed in rack 1, and the shaft of stem folding turnover 3 is made to be connected with oscillating cylinder 35, Oscillating cylinder 35 is mounted on the one side of rack；One cam is installed in the one side of the shaft of stem folding turnover 3, the one of cam It is installed on side frame close to switch 34；Two minitype cylinders 31 are installed in described middle part bottom surface of stem folding turnover or so； As shown in Figure 4：Bottom surface installation oscillating cylinder 32 among the front side of stem folding turnover 3, in the cylinder axis of oscillating cylinder 32 Upper installation claw 33.

Afterbody folding turnover 4 is installed behind stem folding turnover 3, afterbody folding turnover 4 is rotated by its shaft pacifies Mounted in the both sides of rack, the shaft of afterbody folding turnover 4 is connected with oscillating cylinder 41, and oscillating cylinder 41 is mounted on the one of rack Side, in the multiple resigning breach 40 of the forepart left and right settings of afterbody folding turnover 4.

As shown in Figure 5：Press plate mechanism is installed behind folding platform 7.The press plate mechanism includes：Pressing plate 5, pressing plate Stent 51, multiposition cylinder 52, pressing plate pedestal 53, cylinder 54, guide rail 55,58 and sliding block 56,57.In the rear portion both sides of rack 1 point Not one guide rail 55 of front and rear installation sets the pressing plate pedestal 53 of a U-shaped, in the outer of pressing plate pedestal between two guide rails 55 A sliding block 56 is installed in both sides respectively, and pressing plate pedestal 53 is made to be slidably mounted on by sliding block 56 on two guide rails 55；At pressing plate bottom One guide rail 58 on the inside of the both sides of seat 53 is installed up and down respectively, the plate bracket of a hollow is set between two guide rails 58 51, two sliding blocks 57 are installed up and down respectively in the both sides of plate bracket 51, plate bracket 51 is made to be slidably mounted on two guide rails 58 On；Pressing plate 5 is installed above plate bracket 51, before the claw 33 and minitype cylinder 31 on pressing plate 5 and stem folding turnover 3 Corresponding position sets resigning breach 50 respectively afterwards；Below bottom above the bottom of pressing plate pedestal 53 with plate bracket 51 it Between connect a cylinder 54；A multiposition cylinder 52 is connected between the rear end of pressing plate pedestal 53 and the rear end of rack 1.

On the plate bracket 51 of the pressing plate driving mechanism install pressing plate 5, be arranged in the forepart of pressing plate 5 it is trapezoidal, The splayed configuration that trapezoidal and two handle turnover boards of pressing plate are formed is corresponding；Resigning breach 50 is set before and after the forepart of pressing plate 5, Make resigning breach 50 respectively with 31 correspondence of the claw 33 on stem folding turnover 3 and minitype cylinder.

As shown in Figure 6：The mounting bracket bag machine in rack below the resigning breach of afterbody folding turnover 4 is corresponding about 40 Structure, the bag supporting mechanism include support bag bar 42, cylinder 43, guide rod 44, guide rod seat 45.Cylinder 43 is mounted in rack, in gas The left and right sides of cylinder 43, which is symmetrically slided, sets two guide rods 44, and the cylinder rod of the top of two guide rods 44 and cylinder 43 is mounted on and is led On pole socket 45, mounting bracket bag is being distinguished in corresponding position about 40 with the resigning breach of folding turnover 4 above guide rod seat 45 Bar 42.

As shown in Figure 7：Cylinder 74 is installed in rack behind the afterbody folding turnover 4, is symmetrically divided in the both sides of cylinder 74 Other installation guide rod 72 installs folding platform 7, in the both sides of cylinder 74 point in the cylinder rod of the upper end of two guide rods 72 and cylinder 74 It An Zhuan not the cylinder 73 and 75 that differs of a stroke.

The specific work process of embodiment one is as follows：As shown in figure 8, when vest polybag is placed into this hair by conveying device Behind bright operating position, two handle 60 is in respectively on two handle turnover boards 2, and stem fold line 61 is in stem folding Between turnover panel 3 and folding turnover 4, afterbody fold line 62 is between folding turnover 4 and folding platform 7；At this point, bag supporting mechanism Cylinder 43 is open, and support bag bar 42 is stretched out through the resigning breach 40 on folding turnover 4, and height and the stem of support bag bar 42 are rolled over Folded turnover panel 3, folding platform 7 are basically identical, and the cylinder rod of the cylinder 74 of multiposition hoistable platform is to stretch out so that 6 energy of polybag It is enough to keep stablizing smooth state；Afterwards, pressing plate 5 moves forward to stem folding turnover 3 under the driving of multiposition cylinder 52 Top, then cylinder 54, which opens (as shown in Figure 6), makes to be pressed in stem folding turnover 3 the upper surface of under the forepart of pressing plate 5, such as Fig. 9 institutes Show；Afterwards, cylinder 22, which opens driving push rod 21, makes two handle turnover boards 2 be swung successively to centre respectively, and with cylinder 22 cylinder rod, which is persistently stretched out, promotes swing rod 23 to make circular motion so that the pushing direction of push rod 21 and cylinder 22 constantly changes, directly Handle turnover board 2 is extremely folded to 180 degree.So that two handles 60 fold respectively inwards, state as shown in Figure 9 is folded into； Afterwards, oscillating cylinder 32 opens driving 33 swing backward of claw, and claw 33 is by two handles 60 through the resigning breach on pressing plate 50 have been pressed on stem folding turnover 3, such as form state as shown in Figure 10；Afterwards, the release support bag of cylinder 43 of bag supporting mechanism Bar 42 is moved down into below folding turnover 4, and the release of cylinder 74 makes the bottom surface of folding platform 7 be withstood by the cylinder rod of cylinder 73 so that rolling over Folded platform 7 has moved down a position, and the multiposition cylinder 52 of pressing plate driving mechanism discharges a position, makes to move to after pressing plate 5 to make it Front end and corresponding position above and below stem fold line.Afterwards, multiposition cylinder 54 opens a position again, presses the front side of pressing plate 5 On the position of stem fold line 61, state as shown in Figure 10 is formed；Oscillating cylinder 35 is opened driving stem and is folded afterwards 3 swing backward of turnover panel when stem folding turnover 3 is rocked to erectility and swings to 90 degree or so, is examined close to switch 34 The position of stem folding turnover 3 is measured and to one switching signal of control system, so as to which solenoid valve be controlled to release oscillating cylinder 32 It puts, pressing plate 33, which is swung, to be resetted, and does not influence the continuation swing backward of stem folding turnover 3；Pressing plate is folded in stem folding turnover 3 After upper, the minitype cylinder 31 mounted on 3 bottom surface of stem folding turnover is opened, and cylinder rod is by the stem of polybag through on pressing plate 5 Resigning breach 50 push down on folding turnover 4.Then, the release of cylinder 73 makes the bottom surface of folding platform 7 by the cylinder rod of cylinder 75 It withstands so that folding platform has moved down a position for being less than afterbody folding turnover again；Then multiposition cylinder 52 discharges one again A stroke makes pressing plate 5 be extracted out below stem folding turnover 3, and makes the front end of pressing plate 5 by the position of afterbody fold line 62 It pushes down on folding platform 7, forms state as shown in figure 11；Afterwards, folding turnover 4 under the driving of oscillating cylinder 41 backward It swings, the stem of polybag is folded on folding platform 7, the resigning breach 40 on folding turnover 4 is lacked with the resigning on pressing plate 5 Mouth is interlaced to push down polybag on folding platform 7, and then pressing plate 5 is extracted out；Afterwards, cylinder 73 discharges cylinder rod and retracts, and makes It obtains folding platform 7 and moves down a position again, so far, the folding work of vest polybag is completed.

Embodiment two, embodiment two and embodiment one the difference is that：As shown in Figure 12 to Figure 15, in rack 1 Corresponding position is installed by compression bar 48,49 about 7 with folding turnover 4 or folding platform in top.As shown in figure 14：It is turned in afterbody folding Installation guide rod cylinder 47 in the corresponding rack below of plate 4, installs platform trap door support 46, folding turnover 4 passes through in guide rod cylinder 47 Shaft be mounted on platform trap door support 46 on, the one side of platform trap door support 46 install oscillating cylinder 41, make folding turnover 4 by shaft with Oscillating cylinder 41 connects.As shown in figure 12：One electronic slide unit 59 is set at the rear portion of rack 1, by the rear end of electronic slide unit 59 It is hinged in rack 1, one cylinder 591 of connection installation between the front end of electronic slide unit 59 and rack 1；In electronic slide unit 59 Plate bracket 51 is transversely mounted on sliding block, pressing plate 5 is installed on plate bracket 51；As shown in Figure 7：In afterbody folding turnover 4 Multiposition hoistable platform is installed below, multiposition cylinder 71 in rack is installed, is respectively symmetrically installed in the both sides of multiposition cylinder 71 Guide rod 72 installs folding platform 7 in the cylinder rod of the upper end of two guide rods 72 and multiposition cylinder 71.

Specific work process is：As shown in Figure 12 to Figure 15：The guide rod cylinder 47 of bag supporting mechanism is to open under original state , platform trap door support 46 and folding turnover 4 are to rise under the driving of guide rod cylinder 47, and the cylinder rod of multiposition cylinder 71 is all to stretch Go out.Folding turnover 4 and stem folding turnover 3 and folding platform 7 are in substantially on a horizontal line at this time；Rear fender 5 move forward under the driving of electronic slide unit 59 and push down on stem folding turnover 3, and then the two handle folding turnovers 2 in left and right divide Two handles 60 of vest polybag are folded to centre by other fold inward；Afterwards, oscillating cylinder 32 opens driving claw 33 backward It swings and pushes down two handles 60 on stem folding turnover 3；Afterwards, electronic slide unit 49 drives pressing plate 5 to move backward, and is working as Move to afterwards the front end of pressing plate 5 and stem fold line about 61 to it is corresponding when, afterwards, second position of cylinder 591 is opened, and is made It pushes down on stem fold line 61 front end of pressing plate 5；Afterwards, oscillating cylinder 35 drives stem folding turnover 4 to be pressed from both sides together with claw 33 The stem of polybag swing backward together is hold, the driving platform trap door support 46 of the release of guide rod cylinder 47 at this time and folding turnover 4 decline Folding turnover 4 is made to be less than the position of stem folding turnover 3；At the same time, the multiposition cylinder 72 of folding platform mechanism discharges one Position makes folding platform 7 move down a distance and less than the height of afterbody folding turnover 4；When stem folding turnover 3 is folded to After on pressing plate 5, the compression bar 48 above rack is pushed through in the resigning breach 30 and pressing plate 5 on stem folding turnover 4 Resigning breach 50 polybag is pushed down on folding turnover 4；Afterwards, electronic slide unit 59 drives pressing plate 5 to move backward, and makes pressing plate It is extracted out in 5 polybag between stem folding turnover 3 and folding turnover 4, its front end rests on fold line 62 after pressing plate 5 is extracted out Position on；Afterwards, under the driving of oscillating cylinder 41, folding turnover 4 turns down backward, after being folded on folding platform 7, pressure The opening of bar 49, which moves down to push down polybag through the resigning breach 50 in the resigning breach 40 and pressing plate 5 on folding turnover 4, is rolling over On folded platform 7, afterwards, electronic slide unit 49 drives pressing plate 5 to extract out and reset between folding turnover 4 and folding platform 7；Afterwards, The release of multi-cylinder 591 resets.Then multiposition cylinder 72 discharges the second position, and folding platform 7 moves down, foldable formed polybag By manipulator, either push rod is transitioned on conveyer belt or the stranded a plurality of conveying belt conveyor as disclosed in documents 4 On structure, precalculated position is then delivered to.

Claims (4)

1. a kind of folding device of hand plastic bag, including rack, press plate mechanism, it is characterised in that：It is additionally provided in the rack Stem folding turnover is respectively equipped with handle turnover board, the connection of affiliated handle turnover board on the both sides of the stem folding turnover There is swing mechanism, the front side of the stem folding turnover is equipped with bag-clamping mechanism, is additionally provided with behind the stem folding turnover Afterbody folding turnover is additionally provided with multiposition hoistable platform, the afterbody folding turnover behind the afterbody folding turnover Below be additionally provided with bag supporting mechanism.

2. a kind of folding device of hand plastic bag according to claim 1, it is characterised in that：The bag-clamping mechanism bag Containing a kind of oscillating cylinder and claw, claw is connected on oscillating cylinder.

3. a kind of folding device of hand plastic bag according to claim 1, it is characterised in that：The press plate mechanism Front and rear driving mechanism includes a kind of multiposition cylinder or electronic slide unit.

4. according to a kind of folding device of its hand plastic bag described in claim 1, it is characterised in that：The bag supporting mechanism Mainly it is made of cylinder, guide rod, support bag bar.