CN208149811U

CN208149811U - A kind of folding device of polybag

Info

Publication number: CN208149811U
Application number: CN201820368043.9U
Authority: CN
Inventors: 王秀来
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-10-20
Filing date: 2018-03-19
Publication date: 2018-11-27
Anticipated expiration: 2028-03-19

Abstract

The utility model discloses a kind of folding devices of polybag, including rack, handle folding device, folding turnover, press plate mechanism, it is characterized in that, mobile frame mechanism is additionally provided in the rack, adjustment mechanism is additionally provided between mobile frame mechanism and rack, the handle fold mechanism is arranged on movable stand, is additionally provided with folding turnover in rack behind frame mechanism moving, secondary hoistable platform mechanism is additionally provided with behind folding turnover.In the folding work of the utility model, by adjusting the relative position between institutional adjustment movable stand and folding turnover, so as to adapt to the folded lengthwise specification and folding times of polybag.The utility model is simple and compact for structure, stable and reliable in work.

Description

A kind of folding device of polybag

Technical field

The utility model relates to a kind of folding devices of polybag.

Background technique

The polybag produced by Bag Making Machine is generally a pile with tens sacks.For convenient for storage, transport, sale and It uses, these polybags in a pile generally also need to be folded into strip by folding three times, then tied up or packed Into packaging bag.Its folding process is：It folds to centre firstly the need of by the handle 60 of two polybags, then exists again respectively Position shown in stem fold line 61 folds back second, then again the position of tail portion fold line 62 again doubling it is primary or Several times, up to the present these folding work overwhelming majority are completed by manually.The applicant is also once disclosed patent Number for 201110081121 entitled " handle folding devices of full-automatic plastic bag folding strapper " (once referred to as compare text Part 1) patent application, being also disclosed Authorization Notice No. CN103318698B, entitled " handle of two-wire plastic bag folding press is rolled over The patent of invention (hereinafter referred to as documents 2) of stacking device "；Authorization Notice No. was also disclosed：CN203450477U is entitled " a kind of handle folding device of plastic bag folding press " (hereinafter referred to as documents 3).Handle involved in above-mentioned documents Folding device, mainly by handle fold supporting plate, supporting plate turnover device, handle turn over pallet, handle folds compression bar, compression bar is overturn Device, pressing device, handle fold push plate etc. and constitute.

The applicant was once disclosed a kind of entitled " the one of polybag punching machine of authorization Publication No. CN206466289U The utility model patent patent (abbreviation documents 4) of kind of folding device ", the utility model patent include handle folding device, Folding turnover, pressing plate, pressing plate driving mechanism, hoistable platform mechanism.Although the utility model can incite somebody to action under conditions of not tying up Polybag is folded up, and the side for the polybag being folded into can be made parallel with conveyer belt, convenient for conveying, being not easy to scatter. But the disclosed folding device of documents 4, does not adapt to the folding to different lengths polybag, and a machine can only be rolled over The polybag that folded degree is not much different, and because length is not adjustable, the 4th folding can not be carried out to longer polybag It is folded.

The publication No. of earlier application is：CN107628320A, although disclosed technical solution can carry out 4 to polybag Secondary folding, but the width of the polybag folded out is not of uniform size, and can only be more than the polybag of 58 centimetre lengths to length 4 foldings are carried out, limitation is larger.

Utility model content

Technical problem to be solved in the utility model is：A kind of folding device of polybag, for handle shape The polybag of state is folded, and a kind of folding dress of a kind of compact-sized, stable and reliable in work polybag is provided for Bag Making Machine It sets.

To realize the above-mentioned technical purpose, the technical solution of the utility model is：A kind of folding device of polybag, including： Rack, handle folding device, folding turnover, press plate mechanism, it is characterised in that：Mobile frame mechanism is additionally provided in the rack, Adjustment mechanism is additionally provided between the mobile frame mechanism and rack, the handle folding device is located on mobile frame mechanism； The folding turnover is located at behind mobile frame mechanism in rack, and it is flat that secondary lifting is additionally provided with behind the folding turnover Platform is additionally provided with conveying tape transport in the rack.

The front of rack is arranged in the mobile frame mechanism, can slide back and forth in the front of rack, mentions for adjusting Relative position between record book in accordion form stacking device and the folding turnover being arranged on the rack, to realize that the folded lengthwise to polybag is advised The adjustment of lattice.

The mobile frame mechanism includes movable stand, guide rail, sliding block as a preferred technical solution,.Before the sliding block It is located at the two sides of movable stand afterwards, the two sides of rack are located at before and after the guide rail, the movable stand is slided by sliding block to be arranged On the guide rail.

As the another embodiment of mobile frame mechanism, the mobile frame mechanism is made of slide unit and movable stand, institute The movement stated is erected on the slide unit of slide unit.

As one of the numerous embodiments of mobile frame mechanism, adjusting hole is arranged in front and back in the rack, uses screw Movement is erected in rack by adjusting hole, is adjusted before and after carrying out the movable stand in adjusting hole by screw, or Person selects fixation hole in multiple circular holes.The adjusting hole can be long hole, be also possible to multiple circular holes.

The adjustment mechanism, the device that movable stand can be exactly fixed on the rack on multiple and different points.The tune Complete machine structure includes to preset multiple screw holes on the rack, fixes movable stand in such a way that bolt selects screw hole；Or Person be arranged on movable stand before and after to adjusting hole, then with the implementation that is fixed on the rack movable stand of screw insertion adjusting hole The scope of adjustment mechanism all should belong in mode.

The adjustment mechanism includes a kind of adjustable cylinder as a preferred technical solution, the adjustable cylinder connection Between mobile frame mechanism and rack.Adjusting nut by rotating adjustable cylinder can adjust between movable stand and rack Relative position, to be adjusted to adjustable cylinder inflation is given after suitable position, the adjustable cylinder of inflation can lock movable stand and rack Between position.

As the another embodiment of adjustment mechanism, the adjustment mechanism includes a kind of lead screw and feed screw nut.Institute The lead screw stated is connected between movable stand and rack, by rotate the feed screw nut can realize adjustment movable stand with Relative position between folding turnover.

As a preferred technical solution, on the movable stand the position of the bottom surface correspondence with folding turnover also Equipped with supporting plate.The supporting plate can be moved forward and backward with movable stand in the bottom surface of the folding turnover, be folded for adjusting Specification, when the stem folding turnover being located on movable stand be set on the rack folding turnover generate at a distance from it is excessive when, can be with Hold up the part of polybag exceeded before folding turnover.

The handle folding device, it is primary for folding two handles of polybag to centre respectively, then again will Front, that is, stem of polybag is folded back primary device again together with two handles.For handle folding device function and Effect and its reality solve the problems, such as, are disclosed in documents 1-4.

The handle folding device includes as a preferred technical solution,：Handle turns down supporting plate and its supporting plate overturning dress It sets, handle turns over pallet, handle folds strut device, folds compression bar turnover device, pallet longitudinal movement device, polybag pressure Tight device, handle fold push plate and its driving device.Above-mentioned handle folding device discloses already in documents 1-3.

As the another embodiment of handle folding device, the handle folding device includes：Stem folding is turned over Plate, handle turnover board, swing mechanism, bag-clamping mechanism.The stem folding turnover is located at the rear side of the movable stand, described Handle turnover board shape it is corresponding with the form of plastic bag handle, the handle turnover board is distributed in institute in splayed configuration The two sides for the stem folding turnover stated, two handle turnover boards are connect with the swing mechanism respectively, for that will mould Two handles of material bag are folded to centre respectively.

The handle turnover board is connected on swing mechanism as a preferred technical solution, the swing mechanism packet Containing push rod, swing rod and cylinder, it is hinged on rear side of the handle turnover board on rack or mobile bracket, one end of push rod connects It connects in the bottom surface of the handle turnover board, the bottom end of the swing rod and cylinder is connected on rack or mobile bracket, described The cylinder rod and push rod of cylinder and the other end of swing rod are hinged.

The bag-clamping mechanism is prevented for the Billfold with handle of fold two polybags to be stayed in stem folding turnover Only stem folding turnover scatters two handles for having rolled polybag well in switching process.

The bag-clamping mechanism includes a kind of oscillating cylinder and claw, the swing gas as a preferred technical solution, Cylinder is mounted on the front side of stem folding turnover, and the claw is connected on the oscillating cylinder.

As another embodiment of handle folding device, the handle folding device includes a kind of slider cylinder With swing clamp cylinder, corner folded plate.The slider cylinder is arranged on the movable stand, two swing clamp cylinders or so installation On the slide unit of slider cylinder, the corner folded plate is connected on swing clamp cylinder, in moving behind for the swing clamp cylinder Stem folding turnover is set on frame.

The folding turnover is equipped with resigning breach as a preferred technical solution, 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 On.As another embodiment, compression bar is set on the corresponding upper methods, rack of folding platform, and compression bar can be rolled over through tail portion Resigning breach on folded turnover panel and pressing plate pushes down polybag on folding platform.

The press plate mechanism includes that pressing plate and pressing plate drive upside down mechanism, the front and back driving mechanism of pressing plate.The pressure The mechanism effect that drives upside down of plate is：It, can be by the predetermined fold line position of polybag when pressure driving pressing plate moves downward It is pressed on folding platform, plays the role of being fixed, and cooperatively act on implementation with folding turnover and fold.

The pressing plate drives upside down mechanism by plate bracket, pressing plate pedestal, multidigit as a preferred technical solution, Cylinder, guide rail, sliding block are constituted.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 and plate bracket of pressing plate pedestal.

The front and back driving mechanism of the pressing plate, for driving pressing plate that its front end is made to be in predetermined fold line position respectively, and And pressing plate can be made rearwards to extract out from foldable formed polybag.

Driving mechanism includes a kind of multiposition cylinder or electronic slide unit before and after the pressing plate.As a preferred technical solution, The front and back driving mechanism of the pressing plate includes a kind of multiposition cylinder.Sliding block is installed respectively at the both ends of pressing plate seat, in sliding block pair A guide rail is installed in the rack two sides answered respectively, and press plate mechanism is slidably connected at the rear portion two sides of rack by guide rail, sliding block, The multiposition cylinder is connected between pressing plate pedestal and rack.Its cylinder rod of the multiposition cylinder can stretch out several times, can To drive pressing plate to be stopped for it front and back is multiple.Bottom being connected on two common cylinders by the multiposition cylinder It substitutes together, the cylinder rod of two cylinders is connected in pressing plate pedestal and rack.

There are many embodiment of the pressing plate driving mechanism, include straight line mould group, electronic slide unit, slider cylinder etc..

As another embodiment of driving mechanism before and after pressing plate, the pressing plate driving mechanism includes a kind of electric sliding Platform, the electronic slide unit are also referred to as straight line mould group.Front and back is arranged on the two sides of rack two electronic slide units respectively, and crossbeam connects It connects on the sliding block of two electronic slide units, cylinder is set among the left and right of crossbeam, slide and set respectively in the two sides of the cylinder Set a guide rod, one end of two guide rods and the cylinder rod of cylinder are arranged on plate bracket, and pressure is installed on the plate bracket Plate.

The secondary hoistable platform is located at behind folding turnover.The secondary folding platform can be up and down reciprocatingly It moves and can be stopped two positions.The height of folding platform and the height of folding turnover are almost the same when all lifting, and make The polybag that must be placed on above is able to maintain formation state, prevents from very much to be in handle folding greatly because of the drop of polybag Polybag transposition of partial on device；When folding platform is decline after first time, the height of folding platform is lower than folding turnover Highly, at this time folding platform just at the workbench of folding work；When folding platform is after second declines, it has been folded into The polybag of type is pushed on conveyer belt mechanism；Or drop to the gap formed between a plurality of conveyer belt with folding platform In be transferred out come；Or it is crawled out by manipulator.

The secondary hoistable platform mechanism is mainly by folding platform, cylinder, guide rod structure as a preferred technical solution, At.The cylinder is mounted on the centre of rack, installs a lesser cylinder of stroke respectively again in the two sides of the cylinder, The two sides of three cylinders are respectively symmetrically slidably installed a guide rod, install in the upper end of two guide rods and the cylinder rod of middle cylinders Folding platform.

The conveying tape transport, for foldable formed polybag to be discharged into conveyer belt.

The conveying tape transport includes guide rod cylinder, push plate and conveyer belt dress as a preferred technical solution, It sets；The guide rod cylinder is located at before folding platform, and the push plate, the conveyer belt dress are connected in guide rod cylinder It is set in behind folding platform.The conveyor-belt apparatus includes conveyer belt, transmission shaft, motor, is set before and after two transmission shafts It sets, two transmission shafts are equipped with conveyer belt, wherein one end of a transmission shaft is connected to motor.

As the another embodiment of conveying tape transport, hoistable platform is exactly set below folding platform Mechanism and a plurality of conveying tape transport.The hoistable platform mechanism and a plurality of conveying tape transport mechanism are right Than disclosing in file 4, details are not described herein.

The utility model has the advantages that compared with prior art：Compared with documents 4, this is practical new Type moves frame mechanism due to using, and can fold to the polybag of different lengths, can not only be folded three times, But also the 4th folding can be carried out, and can also arbitrarily change the folding specification of polybag.And due to before pressing plate Multiposition cylinder or electronic slide unit are used in rear drive mechanism, so that pressing plate can be in folding turnover in initial position Above, so that being not easy sagging in the middle part of polybag, and secondary hoistable platform mechanism is additionally used, this is especially only being folded When polybag three times, the tail portion of polybag moves down in two times on folding platform, so that folding work is reliable and stable.

As the further improvement to earlier application, the belt conveyor structure includes robot device and conveying Band device, the robot device are located between folding platform and conveyer belt apparatus.For by foldable formed polybag from It is sent on conveyer belt apparatus, foldable formed polybag can also be transmitted on strapper after being grabbed on folding platform, passed through It is discharged on conveyer belt apparatus and transfers out again after tying up.The robot device, the tandem fortune comprising manipulator Dynamic, circular motion, up and down motion etc..The above-mentioned embodiment about belt conveyor structure is that work is tied up in the subsequent of folding machine It provides convenience, also provides a variety of alternative row's bag mode of movement for the utility model.

As a kind of improvement to earlier application, squeeze board mechanism is additionally provided in the rack.As preferred technology Scheme, the squeeze board mechanism are mainly made of squeeze board, cylinder, guide rod, be located at the secondary hoistable platform it is corresponding on Side.

As a kind of improvement to earlier application, it is additionally provided with transfer bar mechanism in the rack, for by the tail of polybag Fold line position fixed compacting in portion's is on folding platform.The transfer bar mechanism is mainly by propping up as a preferred technical solution, Frame, guide rod, cylinder, guide rail, sliding block, push rod, pusher arms are constituted, and the pusher arms are located at the two of the secondary hoistable platform Side.

One of multiple embodiments as transfer bar mechanism, the transfer bar mechanism is by guide rod cylinder, slider cylinder structure At.The guide rod cylinder is located in the back lower place rack of folding platform, connects two on the guide rod seat of the guide rod cylinder A slider cylinder installs pusher arms and push rod on the slide unit of the slider cylinder respectively.The guide rod cylinder is also referred to as three axis Cylinder has the characteristics that lever is non-rotary, can be moved up and down with driving push rod without rotary oscillation；The slider cylinder It is equipped with slide unit, slide unit can carry out linear motion along the track on cylinder to the propulsion of driving push rod and exit.Described Guide rod cylinder, slider cylinder belong to well-known technique, sell extensively in the market.Details are not described herein.

In the technical solution of the utility model, squeeze board mechanism can be individually used, can also individually use push rod machine Structure can also all use squeeze board mechanism and transfer bar mechanism.Push rod can be arranged shorter when specific implementation, two Push rod can only be pushed down when all stretching out in the two sides of polybag, be arranged narrower by squeeze board, squeeze board is made only to be pressed in plastics The middle position of bag.So the stroke that can shorten push rod shortens the width of machine, improves working efficiency.

In the technical solution of earlier application and squeeze board mechanism or transfer bar mechanism are not included, when polybag is placed to head Front and back is laid flat after in portion's folding device and pressing plate, is that front and back keeps smooth (as shown in Fig. 5 of earlier application) substantially. Increase the rear end of stem folding device at a distance from the front end of pressing plate, so that in polybag Subordinate falls on folding platform (as shown in Fig. 6 of earlier application), can hold when pressing plate moves forward in this case It changes places to push away the tail portion of polybag and be folded over.Although the technical solution of earlier application can fold polybag four times, only fit It for the longer polybag of those length, is not enough to hang down on folding platform if the length of polybag is too short, folds effect Fruit is relatively poor.And after squeeze board is arranged in the top of folding platform, the even shorter plastics after the compacting of squeeze board Bag can be also compacted on folding platform.It is tested by test of many times, it can only be right in the case where not using squeeze board mechanism Length is polybag just foldable four times of 58 centimetres or more, and being arranged after squeeze board can be to 45 centimetres or more length Polybag is with regard to foldable four times.Although secondly, earlier application can to polybag carry out four times folding, its fold line position compared with Hardly possible determines.As shown in Fig. 5 of earlier application, when the tail portion of polybag is pushed away folding by pressing plate forward movement, the position of the 4th folding It sets and is difficult to determine or front or rear, cannot be folded by the scheduled position of broken line of people, so that the polybag folded out is wide Different, folding inclination is spent, unsightly.And after transfer bar mechanism is set, push rod can be directly born against on scheduled fold line, be thought It folds in that place and just directly the directly compacting of this place is fixed on folding platform.Both squeeze board mechanism had been played Effect, and when pressing plate is to when being pushed forward folding, predetermined position of broken line can be fixed on folding platform by push rod, so that folding every time Polybag apparent size out is essentially identical, smooth generous.

Detailed description of the invention

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 structural side view of one pressing plate driving mechanism of the utility model embodiment；

Fig. 4 is the side view of the secondary hoistable platform mechanism of the utility model；

Fig. 5 to Fig. 9 is the work step schematic diagram of the utility model embodiment one；

Figure 10 is the external structure schematic diagram of the utility model embodiment two；

Figure 11 is the structural principle top view of the utility model embodiment two；

Figure 12 is the pressing plate driving mechanism side view of the utility model embodiment two；

Figure 13 is the conveying tape transport schematic diagram of the utility model embodiment two；

Figure 14 is the conveying tape transport schematic diagram of the utility model embodiment three；

Figure 15 is the principle schematic diagram of the utility model embodiment three；

Figure 16 is the side view of the squeeze board mechanism of the utility model embodiment three；

Figure 17 is the operation principle schematic diagram of the utility model embodiment three；

Figure 18 is the principle schematic diagram of the utility model embodiment four；

Figure 19 is the structural principle top view of the utility model embodiment four；

Figure 20 is the side view of four transfer bar mechanism of the utility model embodiment；

Figure 21 to Figure 23 is the work step schematic diagram of the utility model embodiment four；

Figure 24 is the mobile frame mechanism of the utility model embodiment four and the principle schematic diagram of adjustment mechanism.

In figure：1- folds compression bar；10- slide unit；11- handle turns over pallet；12- pushes away folded plate；13- stem folding turnover； 14- cylinder；15- sliding block；16- guide rail；17- polybag pressing device；18- oscillating cylinder；19- splined shaft；101- handle turns over Plate；102- folder bag pawl；2- movable stand；21- guide rail；22- sliding block；23- supporting plate；3- adjustable cylinder；31- adjusting nut；32- Thick stick；33- feed screw nut；34- adjusting hole；35- bolt；4- folding turnover；41- oscillating cylinder；5- pressing plate；51- plate bracket； 511- crossbeam；512- guide rod；52- multiposition cylinder；53- pressing plate pedestal；54- cylinder；55- guide rail；56- sliding block；57- sliding block； 58- guide rail；The electronic slide unit of 59-；591- slide unit；6- polybag；60-- plastic bag handle；Fold line of 61-；62- bis- times foldings Superimposing thread；63- fold line three times；Tetra- fold lines of 64-；7- folding platform, 70- manipulator；701- slide unit track；702- slide unit； 71- cylinder；72- guide rod；73- cylinder；74- cylinder；75- motor；76- push plate；77- guide rod cylinder；78- conveyer belt；79- is passed Send axis；8-- rack；91- squeeze board；911- cylinder；912- guide rod；913- guide rod seat；92- push rod；93- pusher arms；94- gas Cylinder；95- guide rod；96-- sliding block；97- guide rail；The two-way cylinder of 98-；99- bracket.

Specific embodiment

As shown in Fig. 1 to Figure 24：The left side of attached drawing is exactly the novel so-called front of this implementation, and the right of attached drawing is exactly this Utility model is so-called below.The utility model is further described with four embodiments respectively.

Embodiment one, as shown in Figure 1 and Figure 2：Mobile frame mechanism, the mobile frame mechanism are installed in the front of rack 1 Including guide rail 21, sliding block 22, movable stand 2.Two guide rails 21 are separately mounted to the front part sides of rack 8, two guide rails 21 it Between be slidably installed a movable stand by sliding block 22, an adjustable cylinder 3 is installed on the top of rack 8, by the gas of adjustable cylinder 3 Cylinder rod is connected on movable stand 2.Handle folding device is installed on the movable stand.The handle folding device includes： Handle turns down supporting plate 13 (hereinafter referred to as stem folding turnover 13)；Supporting plate turnover device includes oscillating cylinder 18, splined shaft 19；Handle turns over pallet 11, handle folds strut device 1；Pallet longitudinal movement device includes cylinder 14, guide rail 16, sliding block 15, slide unit 10；Polybag pressing device；Handle folds push plate and its driving device.Above-mentioned apparatus is in documents 1, comparison text There is specific description in part 2, documents 3, is referred to above-mentioned documents specific implementation, details are not described herein.

Folding turnover 4 is installed, folding turnover 4 is rotatably installed in rack by its shaft behind the movable stand 2 in rack Two sides, the shaft of folding turnover 4 connect with oscillating cylinder 41, and oscillating cylinder 41 is mounted on the side of rack, in folding turnover The 4 multiple resigning breach of front left and right settings.

One supporting plate 23 is installed in the position of the movable stand 2 of the bottom surface correspondence with folding turnover 4.

Cylinder 71 is installed in rack behind the folding turnover 4,73 He of cylinder is installed respectively in the left and right sides of cylinder 71 Cylinder 74 is respectively symmetrically slidably installed guide rod 72 in the two sides of cylinder 71, on the upper end of two guide rods 72 and the cylinder rod of cylinder 71 Folding platform 7 is installed.

Press plate mechanism is installed behind secondary hoistable platform 7.The press plate mechanism includes：Pressing plate 5, plate bracket 51, multiposition cylinder 52, pressing plate pedestal 53, cylinder 54, guide rail 55,58 and sliding block 56,57.Before the difference of the rear portion two sides of rack 1 One guide rail 55 is installed afterwards, the pressing plate pedestal 53 of a U font is set between two guide rails 55, outer the two of pressing plate pedestal A sliding block 56 is installed in side respectively, is slidably mounted on pressing plate pedestal 53 on two guide rails 55 by sliding block 56；In pressing plate pedestal One guide rail 58 is installed up and down respectively on the inside of 53 both sides, the plate bracket of a hollow is set between two guide rails 58 51, in the two sides of plate bracket 51 two sliding blocks 57 are installed up and down respectively, plate bracket 51 is made to be slidably mounted on two guide rails 58 On；Pressing plate 5 is installed in the upper surface of plate bracket 51, the claw 33 and minitype cylinder 31 on pressing plate 5 and stem folding turnover 3 Resigning breach is respectively set in the position of correspondence；Below bottom above the bottom of pressing plate pedestal 53 with plate bracket 51 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.

The specific work process of embodiment one is as follows：

It is described for implementing the course of work of the 4th folding to polybag below, as shown in Figure 5：It is opening Before machine, first according to scheduled folding times, such as folds 3 times or fold 4 times, then come further according to the length of polybag true The position of fixed predetermined fold line, and adjusting nut 31 is rotated to adjust the relative position of movable stand 2 Yu tail portion folding turnover 4.Just Under beginning state, folding platform 7 is all risen, and multiple strokes of multiposition cylinder 52 are fully open, and the front end of pressing plate 5 is in The back upper place of stem folding turnover 4 is in the front upper place of folding platform 7.When plastic convenient bag 6 is placed by conveying device Behind operating position of the invention, the front of polybag 6 is on handle folding device, and the rear part, that is, tail portion is on pressing plate 5, As shown in Fig. 5.It rolls over by folding compression bar 1 and pushing away pushing away for folded plate 12 so that two handles of polybag are folded to stem folding and turn over The centre of plate, polybag pressing device 17 moves down under the driving of its cylinder two handles of polybag are fixed after, folding Bar 1 is laminated to wait for forward extracting and overturning reset in handle out from polybag under the driving of longitudinal motion mechanism；At the same time, more Position cylinder 52 discharges a position, and pressing plate 5 is made to move back a distance, and then the cylinder 71 of secondary hoistable platform mechanism discharges contracting It returns, so that the bottom surface of folding platform 7 is propped up by the cylinder rod of cylinder 73, cylinder 74, so folding platform 7 declines lesser one A position, so that the height of folding platform 7 is lower than the height of folding turnover 4, polybag 6 corresponding with about 7 folding platform Part is also hung down on folding platform 7 therewith, forms state as shown in FIG. 6.Later, stem folding turnover 13 is by polybag Front be folded on folding turnover 4, form state as shown in Figure 7.Later, multiposition cylinder 52 is opened a position again and is made Pressing plate 5 is advanced between stem folding turnover 4 and folding platform 7 corresponding position up and down, during pressing plate 5 moves forward, place The tail portion of polybag on pressing plate 5 is pushed away by pressing plate 5 and is folded on folding platform 7, exhaust hood 54 open driving pressing plate It is pressed under 5 in the 4th predetermined fold line position of polybag 6, forms state as shown in Figure 8.Later, folding turnover 4 to It swings afterwards and the front of polybag 6 is folded on pressing plate 5, as shown in Figure 9.Later, after folding turnover 4 is folded on pressing plate 5, Resigning breach on the folding turnover 4 and resigning breach on pressing plate 5 is interlaced pushes down polybag on folding platform 7, so Rear fender 5 is extracted out under the driving of multiposition cylinder 52, and folding work is completed.Later, cylinder 73 and cylinder 74 discharge so that folding Platform 7 moves down again, so that foldable formed polybag is by stranded on conveying belt transmission device.

Embodiment two, embodiment two and embodiment one the difference is that：As shown in Figure 10：What adjustment mechanism used It is lead screw 32, one end of lead screw 32 is mounted on movable stand 2, and the other end of lead screw 32 is mounted in rack 8, is adjusted by rotation Feed screw nut 33 is saved to adjust the relative position of movable stand 2 Yu folding turnover 4.

The handle folding device of embodiment two is by two handle turnover boards 101, bag pressing pawl 102,13 structure of stem folding turnover At.As shown in figure 11：The front of stem folding turnover 13 is made into trapezoidal, two handle turnover boards 101 are hinged in splayed configuration In rack below 13 both sides of stem folding turnover, bag pressing pawl 102 is installed in the front side middle position of stem folding turnover 13, Swing mechanism is installed respectively in the bottom surface of handle turnover board 101, stem folding turnover 13.

The pressing plate driving mechanism of embodiment two is by electronic slide unit 59, plate bracket 51, crossbeam 511, cylinder 54, guide rod 512 It constitutes.The electronic slide unit 59 is also referred to as straight line mould group, designs in door shape, the mould group frame being parallel to each other comprising two, every Slide unit is respectively equipped on mould group frame, for two mould group framves by motor, transmission axis connection, two slide units can be in two moulds Synchronizing moving on group frame.The rear portion two sides of rack are mounted on before and after electronic slide unit 59, in the sliding block 591 of two electronic slide units 59 Upper left and right is transversely mounted crossbeam 511, and intermediate in crossbeam 511 installs cylinder 54, respectively symmetrically slides peace in the two sides of cylinder 54 Guide rod 512 is filled, the cylinder rod of the upper end of two guide rods 512 and cylinder 54 is mounted on plate bracket 51, is pacified on plate bracket 51 Pressing plate 5 is filled, as shown in figure 12.

The conveyer belt conveying mechanism of embodiment two is by conveyer belt 78, transmission shaft 79, motor 75, guide rod cylinder 77, push plate 76 It constitutes.As shown in figure 13：Before and after behind the folding platform 7 conveying axis 79 is installed respectively, pacifies on two conveying axis 79 Conveyer belt 78 is filled, connects motor 75 in one end of a wherein conveying axis 79；The installation guide rod cylinder before folding platform 7 77, push plate 76 is installed on the cylinder rod seat of guide rod cylinder 77.

Specific work process is：Two handles of polybag are successively folded to stem respectively by two handle turnover boards 101 On folding turnover 13, then folder bag pawl 102, which is swung backward, clamps the front of two handles of polybag and polybag in stem In the anteriomedial of folding turnover 13, then the front of polybag will be folded to by folder bag pawl with stem folding turnover 13 On folding turnover 4, the handle folding work of polybag is completed.Later, pressing plate 5 is under the driving of electronic slide unit 59 with sliding block 591, crossbeam 511, plate bracket 51 move forward and backward；And it can up and down reciprocatingly be transported with plate bracket 51 under the driving of cylinder 54 It is dynamic.The sequential folds process of polybag is basically the same as the first embodiment, and details are not described herein.

It is substantially positioned in same level on upper layer after moving down for folding platform 7 two times with conveyer belt 78, is in folding Polybag 6 on folded platform 7 folding forming, motor 75 first starts turning at this time, and then guide rod cylinder 77 is opened driving and pushed away Plate 76 moves backward the polybag 6 that will be on folding turnover 7 and shifts on conveyer belt 78.

Embodiment three, embodiment three and embodiment one the difference is that：First, in conveyer belt 78 and folding platform 7 Between be equipped with robot device.The robot device includes a kind of Pneumatic manipulator 70 and a kind of slider cylinder, the cunning The carriage saddle 702 of platform cylinder is mounted on the rear of folding platform 7, and the manipulator 70 is mounted on the slide unit 702 of slider cylinder On, the manipulator 70 and 7 correspondence of folding platform (as shown in figure 14).Second, in the corresponding top of folding platform 7 Left and right is intermediate in rack 8 installs cylinder 911, and be respectively symmetrically slidably installed guide rod 912 at left and right sides of 911, cylinder, by two The bottom of guide rod 912 and the cylinder rod of cylinder 911 are mounted on guide rod seat 913, and squeeze board 91 is installed below guide rod seat 913 (as shown in Figure 15 and Figure 16).

Its course of work is：It is that front and back is smooth when polybag 6 is placed on folded operative position, such as Figure 15 institute The state shown.Distance between the rear end of stem folding device and the front side of pressing plate 5 is increased, is made The middle part for obtaining polybag 6 is sagging, and later, squeeze board 91 moves down under the driving of cylinder 911, by four times of polybag The position of fold line is compacted lift reset (as shown in figure 17) after on folding platform 7.

Example IV, example IV and embodiment one the difference is that：First, being rolled over as shown in Figure 18 to Figure 20 Transfer bar mechanism is installed at left and right sides of the rear portion of folded platform 7.Transfer bar mechanism includes two push rods 92, two pusher arms 93, cylinder 94,95, two sliding blocks 96, guide rail 97, two-way cylinder 98, brackets 99 of two guide rods.Cylinder 94 is mounted below rack 8 left Right centre, two guide rods 95 are respectively symmetrically slidably mounted on the two sides of cylinder 94, upper end and cylinder 94 in two guide rods 95 Mounting bracket 99 in cylinder rod；One guide rail 97 is installed on bracket 99, two sliding blocks 96 are installed on guide rail 97, in two cunnings One pusher arms 93 is installed respectively on block 96, one push rod 92 is installed respectively in the upper end of two pusher arms 93；It is pushed away at two Two-way cylinder 98 is connected among the lower part of lever arm 93；The centre of two-way cylinder 98 is connected on bracket 99.As shown in figure 19：It is logical Adjustment is crossed, two pusher arms 93 or so is made to be distributed in the rear portion two sides of folding platform 7；Two push rods 92 and four fold lines 64 Position it is corresponding up and down；When original state the front end of pressing plate 5 be in polybag secondary folding line 62 and three times fold line 63 it Between below.Second, as shown in figure 24：Compared with embodiment one, guide rail 21, the sliding block 22 of mobile frame mechanism is omitted；Slightly The adjustable cylinder 3 of adjustment mechanism is removed.Then at least two adjusting holes 34 are set on movable stand 2, pass through adjustment with bolt 35 Movable stand 2 is arranged in rack 8 in hole 34, bolt 35 is first unclamped when needing to change the folding specification of polybag, to move Moving frame 2 again tightens bolt 35 when adjusting to suitable position.

The specific work process of example IV is as follows：As shown in figure 19, when polybag 6 is placed to stem folding device After on pressing plate 5, the handle 60 of two polybags is in handle respectively and turns on pallet 11, the secondary folding line 62 of polybag Position be in the rear side of stem folding turnover 13.It pushes down firstly, two folding compression bars 1 overturn 180 degrees in two polybags On fold line 61 of handle 60, latter two push away folded plate 12 respectively to centre fold, two plastic bag handles 60 are folded At state as shown in figure 21.It is empty because the front end of pressing plate 5 is at this time between secondary folding line 62 and three times fold line 63 Between will not be sagging compared with the middle part of small plastic bag.Two plastic bag handles 60 are in handle respectively and turn over not to be fallen off on pallet 11 Or shift, it ensure that the normal folding of two plastic bag handles 60 under this state.Two cylinder rods of two-way cylinder 98 at this time It is all to stretch out, two push rods 92 are in the left and right sides of folding platform 7, pressing plate 5 and polybag 6 respectively, and fold with four times Line 64 or so is laterally corresponding；And cylinder 94 is also open, and the height that two push rods 92 lift is higher than polybag 6.Firstly, The two-way release of cylinder 98 pulls two pusher arms 93 mobile to centre, so that two about 92 push rods correspond to the four of polybag Secondary fold line 64；Later, pressing plate 5 moves backward certain distance under the driving of multiposition cylinder 52 and makes to roll at its front end at four times Below superimposing thread 64, the folding of two plastic bag handles is finished at this time, and the middle part of polybag 6 is sagging to have will not influence plastics The folding of bag handle.Later, two push rods 92 of the release of cylinder 94 driving move down, by four fold lines 64 of polybag Position is pushed down on folding platform 7, and state (note as shown in figure 21 and figure is formed：Figure 21 is top view).Multidigit gas later Cylinder 52 drives pressing plate 5 to move forward again, and the subsequent part of four fold lines 64 of polybag is folded over to being pushed forward.In pressing plate 5 Push away folding during, two push rods 92 are pressed in the position of four fold lines 64 of polybag, this position is exactly four fold lines Position, and be very determining.After the tail portion of polybag 6 is pushed away folding by pressing plate 5, two-way cylinder 98 is opened, and two push away Bar 98 is decorporated to the two sides of polybag respectively, forms state as shown in figure 23.Later, folding turnover 4 is swung backward plastics The front of bag 6 is folded on pressing plate 5, rear fender 5 return to reset under the driving of multiposition cylinder 52, folding turnover 4 is also therewith It returns and resets, four folding works of polybag are completed.

Claims

1. a kind of folding device of polybag, including：Rack, handle folding device, folding turnover, press plate mechanism, feature exist In：It is additionally provided with mobile frame mechanism in the rack, adjustment mechanism is additionally provided between the mobile frame mechanism and rack, it is described Handle folding device be located on mobile frame mechanism；The folding turnover is located at behind mobile frame mechanism in rack, described It is additionally provided with secondary hoistable platform behind folding turnover, conveying tape transport, the rack are additionally provided in the rack On be additionally provided with transfer bar mechanism.

2. a kind of folding device of polybag according to claim 1, it is characterised in that：The adjustment mechanism includes one Kind adjustable cylinder.

3. a kind of folding device of polybag according to claim 1, it is characterised in that：On the mobile frame mechanism Supporting plate is additionally provided with the position of the bottom surface correspondence of folding turnover.

4. a kind of folding device of polybag according to claim 1, it is characterised in that：The press plate mechanism includes pressure Plate drives upside down driving mechanism before and after mechanism and pressing plate, and driving mechanism includes a kind of multiposition cylinder or electronic before and after the pressing plate Slide unit.

5. a kind of folding device of polybag according to claim 1, it is characterised in that：Pressure is additionally provided in the rack Solid plate mechanism.

6. a kind of folding device of polybag according to claim 1, it is characterised in that：The transfer bar mechanism mainly by Bracket, guide rod, cylinder, guide rail, sliding block, push rod, pusher arms are constituted, and the pusher arms are located at the two of the secondary hoistable platform Side.