CN207360744U - A kind of folding device of plastic convenient bag - Google Patents

Abstract

The utility model discloses a kind of folding device of plastic convenient bag, including rack, folding pressure lever mechanism, it is characterised in that：Slipway mechanism is additionally provided with before the folding turnover, the folding pressure lever mechanism is located on slipway mechanism, stem folding turnover is additionally provided with behind the slipway mechanism, the both sides of the stem folding turnover further respectively have handle turnover board, swing mechanism is connected with the handle turnover board, bag-clamping mechanism is additionally provided with the upper stem folding turnover, impression trigger structure or press plate mechanism are additionally provided with rack.The utility model is compact-sized, without as the prior art push away folded plate significantly the handle of polybag can just be folded up to both sides push-and-pull, it is simple in structure, stable and reliable in work.

Description

A kind of folding device of plastic convenient bag

Technical field

It the utility model is related to a kind of folding device of plastic convenient bag.

Background technology

The plastic convenient bag produced by Bag Making Machine, generally using tens sacks as a pile.For ease of storing, transporting, selling Sell and use, these polybags in a pile generally also need to, by folding three times, be folded into strip, then tied up or wrapped It is attached in packaging bag.Its folding process is：Fold to centre firstly the need of by the handle 60 of two polybags, then exist again respectively Position shown in stem fold line 61 is folded back second, and then in the position of afterbody fold line 62, doubling is once or several again again Secondary, up to the present these folding work overwhelming majority are all completed by manually.The applicant is also once disclosed the patent No. For 201110081121 entitled " handle folding device of full-automatic plastic bag folding strapper " (abbreviation documents 1 once) Patent application, being also disclosed Authorization Notice No. CN103318698B, entitled " handle of two-wire plastic bag folding press folds dress Put " patent of invention (hereinafter referred to as documents 2)；Authorization Notice No. was also disclosed：Entitled " the polybags of CN203450477U A kind of handle folding device of folding machine " (hereinafter referred to as documents 3).But the handle involved by above-mentioned documents folds dress Put, pallet, handle folding compression bar, compression bar turnover device, pressure are mainly turned over by handle fold supporting plate, supporting plate turnover device, handle Tight device, handle fold push plate etc. and form.Structure is extremely complex, and its using push plate be with move back and forth by the way of general side Just two handles are folded to centre, but because the amplitude that push plate is elapsed to both sides is larger, cause the body of whole folding machine Product is wider.And the apparatus structure is complicated, the problem such as manufacture cost height.

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 be able to will mould under conditions of not tying up Material bag is folded up, and the side of polybag that is folded into can be made parallel with conveyer belt, is scattered easy to convey, be not easy.But Its handle fold mechanism is each independent with tail folding device, and structure is more complicated；And the folding turnover of documents 4 is necessary Height when being lifted less than the turnover panel and hoistable platform of handle folding device, this make it that the middle part of polybag is necessarily sagging, So that two handles of polybag easily change in folding process, folding work is caused to be not sufficiently stable；Besides documents 4 In there is no the open technology contents on handle folding device in addition to documents 1-3, simply " handle folding device " Summarize and propose, the public cannot understand do not have in addition to above-mentioned documents it is alternative other on handle folding device Technology contents, it is impossible to realize compact-sized technical purpose.

Utility model content

Technical problem to be solved in the utility model is：A kind of folding device of plastic convenient bag, for carrying The plastic convenient bag of hand state is folded, and a kind of a kind of compact-sized, stable and reliable in work fold is provided for Bag Making Machine and is filled Put.

To realize above-mentioned technical purpose, the technical solution of the utility model is：A kind of folding device of plastic convenient bag, bag Include：Rack, fold pressure lever mechanism, folding turnover, it is characterised in that：Slipway mechanism is additionally provided with the rack, it is described Fold pressure lever mechanism to be located on slipway mechanism, be additionally provided with stem folding turnover behind the slipway mechanism in rack, it is described The right and left of stem folding turnover further respectively has handle turnover board, and swing mechanism is connected with the handle turnover board, Bag-clamping mechanism is additionally provided with the stem folding turnover, the above or below of the folding turnover is additionally provided with secondary lifting and puts down Platform, is additionally provided with press plate mechanism or impression trigger structure in the rack.

The slipway mechanism is slidably arranged in the front portion of rack, is rolled over for carry folding pressure lever mechanism relative to stem Folded turnover panel makees front-rear reciprocation movement, folding compression bar is in above stem folding turnover or is folded away from stem and turns over Plate.

As preferable technical solution, the slipway mechanism includes carriage saddle, cylinder, guide rail, sliding block, the guide rail The front part sides of rack are located at, the sliding block is located at the left and right ends of the carriage saddle, and carriage saddle is slided by sliding block and set On guide rail, the cylinder is connected between slide unit and rack.

One of numerous embodiments as slipway mechanism, the slide unit framework include a kind of electronic slide unit or slide unit gas Cylinder, the folding pressure lever mechanism are arranged on the sliding block of slider cylinder.

The folding pressure lever mechanism, which includes, folds compression bar and compression bar switching mechanism, folds drive of the compression bar in its switching mechanism The inner side that lower two compression bars are pressed in the handle turnover board in splayed is moved, for the handle of polybag to be pressed abd fixed on stem On folding turnover, for the splayed that two compression bars are formed equivalent to the effect of " template ", the place that compression bar press against is exactly that handle folds Predetermined fold line position, two handles can be implemented to fold according to the predetermined folding position of people.

As preferable technical solution, the folding pressure lever mechanism is mainly by folding compression bar, pressure arm, escapement, cylinder, flower Key axis, oscillating cylinder are formed.Fold pressure lever mechanism and belong to known technology, in documents 1, documents 2, documents 3 Disclose.

As preferable technical solution, anterior trapezoidal, two handles with polybag of the stem folding turnover The state formed after folding is corresponding；The stem folding turnover is rotatably arranged on the both sides of rack by shaft, described turn One end of axis is connected with oscillating cylinder.

The shape of the handle turnover board is corresponding with the form of plastic bag handle, and the handle turnover board is distributed in The both sides of the stem folding turnover, for two handles of polybag to be folded to centre respectively.

As preferable technical solution, the handle turnover board is connected on swing mechanism, the swing mechanism bag Containing push rod, swing rod and cylinder, it is hinged on rear side of the handle turnover board on rack or mobile stent, one end connection of push rod In the bottom surface of the handle turnover board, the bottom of the swing rod and cylinder is connected on rack or mobile stent, the gas The cylinder rod and push rod of cylinder and the other end of swing rod are hinged.

As the numerous embodiments and purposes of swing mechanism, the swing mechanism being connected with handle turnover board with The oscillating cylinder of the stem folding turnover connection is mutually equivalent with effect in effect, can mutually be replaced.

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

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

Bag supporting mechanism is additionally provided with below the folding turnover.The bag supporting mechanism is arranged under folding turnover Face, for holding in the palm the medium position of flat polybag, makes polybag keep horizontality substantially.

As preferable technical solution, the bag supporting mechanism is mainly made of cylinder, guide rod, guide rod seat, support bag bar, institute The cylinder stated is installed 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 guide rod gas Cylinder, folding turnover and oscillating cylinder are installed on the platform trap door support, and guide rod cylinder is connected with below the platform trap door support.

As preferable 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 installed on 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 passed through when cylinder rod stretches out on stem folding turnover and pressing plate push down polybag in afterbody On folding turnover, easy to the reliable extraction of pressing plate.

As preferable 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 pass through 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 upper lower drive mechanism, the front and rear driving mechanism of pressing plate of pressing plate and pressing plate.The pressure The upper lower drive mechanism effect of plate is：, 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 acts on implementation with folding turnover and fold.

As preferable technical solution, the upper lower drive mechanism of the pressing plate is by plate bracket, pressing plate base, multidigit gas Cylinder, guide rail, sliding block are formed.Pressing plate is installed on plate bracket, and plate bracket, which slides up and down, to be arranged on pressing plate base, the pressure Cylinder is installed up and down between the bottom of plate base and plate bracket.

The front and rear driving mechanism of the pressing plate, for driving pressing plate to make its front end be in stem fold line, afterbody respectively Corresponding position stops above and below fold line, folding platform, and can make pressing plate from foldable formed polybag backward Extract out in face.

Driving mechanism includes a kind of multiposition cylinder or electronic slide unit before and after the pressing plate.As preferable technical solution, The front and rear 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 both sides answered respectively, and press plate mechanism is slidably connected at the rear portion both sides of rack, institute by guide rail, sliding block The multiposition cylinder stated is connected between pressing plate base and rack.Its cylinder rod of the multiposition cylinder can stretch out several times, can be with Driving pressing plate multiple stops for it front and rear.The multiposition cylinder can be cascaded with the bottom of two common cylinders, Even the cylinder rod of a cylinder is connected in pressing plate base and rack.

The embodiment of the pressing plate driving mechanism is very much, includes straight line, electronic slide unit, slider cylinder etc..

As another embodiment of pressing plate driving mechanism, the pressing plate driving mechanism includes a kind of electronic slide unit and one Kind cylinder, the rear end of the electronic slide unit are hinged in rack, and multiposition 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, and pressing plate is located on plate bracket.Can when cylinder rod works The front portion and pressing plate for driving electronic slide unit carry out circular motion up and down, can be by the fold line position pressure of polybag when moving downward Tightly on folding platform.

The secondary hoistable platform is located at behind folding turnover, and the folding platform of the secondary hoistable platform can be with Move back and forth up and down and can be stopped in multiple positions.Folding platform is exactly the workbench of folding device when cylinder rod is lifted, and is folded Work is exactly to be carried out on folding platform；When hoistable platform declines, foldable formed polybag, which has been pushed into, is conveying In band mechanism, or when folding platform drops between a plurality of conveyer belt in the gap formed, foldable formed polybag By stranded on a plurality of conveyer belt so that foldable formed polybag, which has been transferred out, comes.

The secondary hoistable platform mechanism is mainly made of folding platform, cylinder, guide rod.

As preferable technical solution, the cylinder is installed on the centre of rack, pacifies respectively again in the both sides of the cylinder A less cylinder of stroke is filled, be respectively symmetrically slidably installed a guide rod in the both sides of three cylinders, the upper end of two guide rods With installation folding platform 7 in the cylinder rod of middle cylinders.

As another embodiment of secondary hoistable platform, the cylinder includes a kind of multiposition cylinder, and described is more Position cylinder is installed in rack, and be respectively symmetrically slidably installed a guide rod in the both sides of multiposition cylinder, in the upper end of two guide rods Folding platform is installed with the cylinder rod of multiposition cylinder.

As preferable technical solution, it is right above and below stem fold line or afterbody fold line that the impression trigger structure is arranged on The position answered, for implementing to push compacting to predetermined fold line position, to form folding line, easy to fold.

For the impression trigger structure compared with press plate mechanism, the characteristics of impression trigger structure is only to move back and forth up and down, and is not deposited Moving back and forth；The characteristics of press plate mechanism is to pump, can be with front-rear reciprocation movement.In this patent skill In art scheme, impression trigger structure can be used, press plate mechanism can also be used.And can also be impression trigger structure and trigger squeeze Structure, which merges, to be used, and is exactly the corresponding position setting impression trigger structure above and below the rear side of stem folding turnover, in impression trigger structure Behind set press plate mechanism.

The utility model has the advantages that compared with prior art：Compared with documents, the utility model Two handle turnover boards need not to both sides push and pull in the case of just the handle of two polybags can reliably be folded Come, so that the width of folding machine be dramatically reduced, particularly reduce the width of two-wire folding machine so that the knot of folding machine Structure is compact；Multiposition cylinder is used as a result of bag supporting mechanism or in pressing plate driving mechanism, and additionally uses secondary lifting Platform mechanism so that be not easy sagging in the middle part of polybag, and the gradually decline of secondary hoistable platform all causes polybag rolling over Balance is kept on folded operating position so that folding work is reliable and stable.

Brief 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 for folding pressure lever mechanism；

Fig. 4 is the structural principle top view for folding pressure lever mechanism；

The principle schematic diagram of the handle turnover board of Fig. 5 the utility model；

Fig. 6 is the principle schematic diagram of one bag-clamping mechanism of the utility model embodiment；

Fig. 7 is the principle schematic diagram of one pressing plate driving mechanism of the utility model embodiment；

Fig. 8 is the structural principle side view of the bag supporting mechanism of the utility model embodiment one；

Fig. 9 is the side view of the secondary hoistable platform of the utility model；

Figure 10 to Figure 13 is the work step schematic diagram of the utility model embodiment one；

Figure 14 is the principle schematic diagram of the utility model embodiment two；

Figure 15 is the structural principle top view of the utility model embodiment two；

Figure 16 is the side view of two impression trigger structure of the utility model embodiment；

Figure 17 is the structural side view of the secondary hoistable platform of the utility model embodiment two；

Figure 18 is the operation principle schematic diagram of embodiment two；

Figure 19 is the principle schematic diagram of embodiment three；

Figure 20 is the structural principle top view of the utility model embodiment three.

In figure：1- folds compression bar；10- carriage saddles；11- pressure arms；12- cylinders；13- guide rails；14- sliding blocks；15- swings gas Cylinder；16- splined shafts；17- cylinders；18- escapements；19- shafts；2- handle turnover boards；21- push rods；22- cylinders；23- swing rods；3- Stem folding turnover；31 minitype cylinders；32- oscillating cylinders；33- claws；The close switches of 34-；35- oscillating cylinders；4- is folded and turned over Plate；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 rod cylinders；48- compression bars；49- compression bars；5- pressing plates；50- resigning breach；51- plate brackets；52- multiposition cylinders；53- is pressed Plate base；54- cylinders；55- guide rails；56- sliding blocks；57- sliding blocks；58- guide rails；The electronic slide units of 59-；591- cylinders；6- convenient bags； 60- handles；61- stem fold lines；62- afterbody fold lines；7- folding platforms, 71- multiposition cylinders；72- guide rods；73- cylinders； 74- cylinders；75- cylinders；8- racks；9- impression plates；91- cylinders；92- guide rods；93- guide rod seats.

Embodiment

As shown in Fig. 1 to Figure 20, the left side of attached drawing is exactly the front alleged by the utility model, and the right of attached drawing is exactly this reality With it is new it is alleged behind.Below in conjunction with the accompanying drawings the utility model is further described with three embodiments respectively.

Embodiment one, as shown in Figure 1 and Figure 2：Anterior in rack 1 installs stem folding turnover 3, in stem folding turnover 3 Both sides handle turnover board 2 is installed respectively, two handle turnover boards 2 are separately positioned on the two of stem folding turnover 3 in splayed configuration Side.As shown in Figure 5：Two corresponding handle turnover panels 2 of form with the handle 60 of convenient bag are set, respectively by handle turnover board 2 rear side is hinged in rack, a push rod 21 is hinged in the bottom surface of handle turnover board 2, in the lower methods, rack of handle turnover board 2 It is upper to be hinged a swing rod 23, cylinder 22 is installed on the lower methods, rack of handle turnover board 2, then makes the other end, the branch of push rod 21 Together with the other end of strut 23 joins with the cylinder rod end of cylinder 22.

As shown in Figure 6：Two minitype cylinders 31 are installed in described middle part bottom surface of stem folding turnover 3 or so；In head Bottom surface installation oscillating cylinder 32 among the front side of portion's folding turnover 3, installs claw 33 on the cylinder axis of oscillating cylinder 32.So Stem folding turnover 3 is rotatably installed in rack 1 afterwards, the shaft of stem folding turnover 3 is connected with oscillating cylinder 35, is swung Cylinder 35 is installed on the side of rack.

Guide rail 13 is installed respectively before and after the both sides of rack 1 before the stem folding turnover 3, is set between two guide rails 13 A rectangular carriage saddle 10 is put, a sliding block 14 is installed respectively in the left and right ends of carriage saddle 10；As shown in Figure 2：In cunning Left and right lateral rotation installs a splined shaft 16, the position of corresponding carriage saddle 16 above and below one end of splined shaft 16 on pedestal 10 One oscillating cylinder 15 is installed, one end of splined shaft 16 is connected with oscillating cylinder；As shown in Fig. 3 Fig. 4：The pressure arm of one is set 11, one spline housing is set in the preceding lower end of pressure arm 11, a shaft 19 is installed above and below the rear end of pressure arm 11, in shaft 19 An escapement 18 is rotatablely installed, compression bar 1 is installed on escapement 18, is installed on the rocking arm of escapement 18 between the front portion of pressure arm 11 Cylinder 17；Two pressure arms 11 are sleeved on splined shaft 16 by the spline housing of its posterior end, the carriage saddle 10 is passed through Sliding block 14 is slidably mounted on two guide rails 13；The installation connection cylinder 12 between the front end of carriage saddle 10 and rack.

Folding turnover 4 is installed behind stem folding turnover 3, folding turnover 4 is rotatably installed in rack by its shaft Both sides, the shaft of portion's folding turnover 4 is connected with oscillating cylinder 41, and oscillating cylinder 41 is installed on the side of rack, is rolled in afterbody The anterior left and right of folded turnover panel 4 sets multiple resigning breach 40.

As shown in Figure 8：Bag supporting mechanism is installed in rack below the resigning breach of folding turnover 4 is corresponding about 40, institute The bag supporting mechanism stated includes support bag bar 42, cylinder 43, guide rod 44, guide rod seat 45.Cylinder 43 is installed in rack, in cylinder 43 The left and right sides, which is symmetrically slided, sets two guide rods 44, and the cylinder rod on the top of two guide rods 44 and cylinder 43 is installed on guide rod seat 45 On, distinguishing mounting bracket bag bar 42 in corresponding position about 40 with the resigning breach of folding turnover 4 above guide rod seat 45.

As shown in Figure 9：Cylinder 74 is being installed below folding turnover 4 in rack, is symmetrically being slided in the left and right sides of cylinder 74 Two guide rods 72 of dynamic installation, install the different cylinder 73 of a stroke and cylinder 75 respectively in the machine frame at two sides of cylinder 74, Folding platform 7 is installed on the upper end of two guide rods 73 and the cylinder rod of cylinder 74.

As shown in Figure 7：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 base 53, cylinder 54, guide rail 55,58 and sliding block 56,57.At the rear portion two of rack 1 Side is front and rear respectively to install a guide rail 55, the pressing plate base 53 of one U-shaped of setting between two guide rails 55, in pressing plate base Outer both sides one sliding block 56 is installed respectively, pressing plate base 53 is slidably mounted on by sliding block 56 on two guide rails 55；Pressing One guide rail 58 is installed up and down respectively on the inside of the both sides of plate base 53, the pressing plate of a hollow is set between two guide rails 58 Stent 51, installs two sliding blocks 57 in the both sides of plate bracket 51, plate bracket 51 is slidably mounted on two and lead up and down respectively On rail 58；Pressing plate 5 is installed above plate bracket 51, claw 33 and minitype cylinder on pressing plate 5 and stem folding turnover 3 The position of 31 correspondences sets resigning breach 50 respectively；Under bottom above the bottom of pressing plate base 53 with plate bracket 51 A cylinder 54 is connected between face；A multiposition cylinder 52 is connected between the rear end of pressing plate base 53 and the rear end of rack 1.

The specific work process of embodiment one is as follows：As shown in Figure 10, when plastic convenient bag 6 is placed into this by conveying device Behind the operating position of utility model, two handle 60 is on two handle turnover boards 2 respectively, and stem fold line 61 is in head Between portion's folding turnover 3 and folding turnover 4, afterbody fold line 62 is between folding turnover 4 and folding platform 7；At this time, bag is held in the palm The cylinder 43 of mechanism is to open, and support bag bar 42 is stretched out through the resigning breach 40 on folding turnover 4, the height of support bag bar 42 with Stem folding turnover 3, folding platform 7 are basically identical, this enables polybag 6 to form smooth state as shown in Figure 10. First, under the driving of oscillating cylinder 15, two folding compression bars 1 are turned on stem folding turnover 3, and two folding compression bars 1 are in Splayed configuration pushes down the predetermined fold line position of two handles 60 of convenient bag on stem folding turnover 3, is formed such as Figure 11 institutes The state shown.Afterwards, as shown in Figure 5：Cylinder 22, which opens driving push rod 21, makes two 2 swing backwards of handle turnover board, and with Cylinder 22 cylinder rod persistently stretch out promote swing rod 23 make circular motion so that the promotion angle of push rod 21 and cylinder 22 constantly changes Become, until handle turnover board 2 is folded on stem folding turnover 4 so that two handles 60 fold respectively inwards successively, fold Into state as shown in Figure 10.Afterwards, oscillating cylinder 32 opens driving 33 swing backward of claw, and claw 33 presses two handles 60 On stem folding turnover 3, state as shown in figure 11 is formed.Afterwards, as shown in Fig. 3 Fig. 4, the release of cylinder 17 driving two Fold compression bar 1 inwardly to swing, until it is parallel to swing to two folding compression bars；At the same time, cylinder 12 is also opened, and drives slide unit Seat 10 is moved rearwards together with two folding compression bars 1, folding compression bar 1 is released from the handle 60 of convenient bag and is left head Portion's folding turnover 3, forms the state shown in Figure 12.The cylinder 43 of bag supporting mechanism discharges afterwards, and support bag bar 42 moves down into folding and turns over Below plate 4；Cylinder 74 discharges so that folding platform 7 moves down a position, and pressing plate 5 is advanced under the driving of multiposition cylinder 52 The top position of stem fold line 61, is connected on and makes to be pressed in stem folding under the front side of pressing plate 5 under the driving of multiposition cylinder 54 On line 61, state as shown in figure 12 is such as formed.

Afterwards, stem folding turnover 3 and claw 33 hold the stem of polybag under the driving of oscillating cylinder 35 together Start to turn down backward, when stem folding turnover 3 is rocked to erectility and swings to 90 degree or so, detected close to switch 34 To the position of stem folding turnover 3 and one switching signal of control system is given, so that control solenoid valve to discharge oscillating cylinder 32, Claw 33, which is swung, to be resetted, and does not influence the continuation swing backward of stem folding turnover 3；It is folded in stem folding turnover 3 on pressing plate Afterwards, the minitype cylinder 31 installed in 3 bottom surface of stem folding turnover is opened, its cylinder rod is by the stem of polybag through on pressing plate 5 Resigning breach 50 push down on folding turnover 4, multiposition cylinder 52 opens a position stroke again afterwards, and driving pressing plate 5 is from head Moved after extracting out and continue in polybag between portion's folding turnover 3 and folding turnover 4, then cylinder 54 is opened again makes pressing plate 5 Front end is pushed down in the position of afterbody fold line 62, and then stem folding turnover 3, which is swung, resets, and forms state as shown in fig. 13 that. Afterwards, the swing backward under the driving of oscillating cylinder 41 of folding turnover 4, after the stem of polybag is folded on folding platform 7, Resigning breach 40 on folding turnover 4 with the resigning breach on pressing plate 5 is interlaced pushes down polybag on folding platform 7, Then pressing plate 5 is moved rearwards extraction under the driving of multiposition cylinder 52, and then folding turnover 4, which is swung, resets；Afterwards, 73 He of cylinder Cylinder 75 discharges, and folding platform 7 moves down again, and so far, the folding work of plastic convenient bag is completed.

Embodiment two, embodiment two and the difference of embodiment one are：As shown in Figure 14 to 17, fold and turn in stem The top installation impression trigger structure bar 9 of the back side top rack 1 of plate 3, the cylinder rod of multiposition cylinder 52 all stretches out.Pressing plate at this time 5 rest on the front of secondary hoistable platform 7, and the front end of pressing plate 5 will can be held up among convenient bag 6 at this time, so as to save Omit bag supporting mechanism.

As shown in figure 16：Cylinder 91 is installed in left and right centre position in rack, is symmetrically installed in the left and right sides of cylinder 91 Two guide rods 92, the cylinder rod of the lower end of two guide rods 92 and cylinder 91 are installed on guide rod seat 93, below guide rod seat 93 Impression plate 9 is installed.

Specific work process is：As shown in figure 16, the first position of multiposition cylinder 52 and the second place be all under original state It is to open, cylinder rod all stretches out；The front side of pressing plate 5 is in above folding turnover 4 and folding platform 7,5 initial bit of pressing plate The reach put has the function that to hold up in the middle part of convenient bag, and so the middle part of convenient bag 6 is just unlikely to sagging, so as to save Omit bag supporting mechanism.After two handle turnover boards 2 successively successively fold the handle 60 of convenient bag to centre, oscillating cylinder 32 Driving claw 33 clamps two handles 60 on stem folding turnover 3.Before the fold of stem folding turnover 3, impression plate 9 exists Being moved down under the driving of cylinder 91 will lift after the compacting of 61 position of stem fold line；Multiposition cylinder 52 discharges first position and second Position makes the back that folding platform 7 is moved on to after pressing plate 5, and at this moment the rear clan of convenient bag 6 is on folding turnover 4 and folding platform 7； Afterwards, the stem of convenient bag is folded on folding turnover 4 by stem folding turnover 3 under the driving of oscillating cylinder 41；Then, it is more Position cylinder 71, which opens first position, makes folding platform 7 be displaced downwardly to the position less than folding turnover 4；Then, multiposition cylinder 52 is released The one the second two positions are put, drives to move after pressing plate 5 and is extracted out below stem folding turnover 3；Folded flat is moved on to after pressing plate 5 After platform 7, the afterbody of polybag falls on folding platform 7；Afterwards, multiposition cylinder 52 is opened makes pressing plate 5 to a position Front end is in the top of afterbody fold line 62, then cylinder 54 open make plate bracket 51 drive pressing plate 5 move down be pressed in afterbody folding On superimposing thread 62, the part behind afterbody fold line 62 has been pressed on folding platform 7.Afterwards, folding turnover 4 is in oscillating cylinder 41 Driving under the previous section of convenient bag 6 is folded on folding platform 7.Because folding turnover 4 is equipped with multiple resigning breach 40, the entity part that 40 both sides of resigning breach of folding turnover are formed can be interlaced with the resigning breach on pressing plate 5, and Folding turnover 4 is higher than pressing plate 5 and folding platform 7 at this time, convenient bag is held down on folding platform 7 so that pressing plate 5 can be from After reliably releasing between folding turnover 4 and folding platform 7, then, multiposition cylinder 71 opens a position again, makes folding Platform 7 moves down again, and foldable formed polybag is exited folded operative position.

Embodiment three, embodiment three and the difference of embodiment one are：As shown in Figure 18,19, folding turnover 4 is installed Behind folding platform 7, impression plate 9 is also installed on methods, rack on the front side of folding turnover 4 is corresponding, stem can be rolled over Impression plate on rear side of folded turnover panel is installed on the guide rod seat 92 of same cylinder 91 driving.The characteristics of the present embodiment is without pressing plate Mechanism 5, without bag supporting mechanism and its support bag bar 42 are set, without installing minitype cylinder 31 on stem folding turnover 3, Without setting resigning breach 40 on folding turnover 4.

Specific work process is：Folding platform 7 lifts under original state, with stem folding turnover 3, folding turnover 4 Height remain basically stable, it is to lie in stem folding turnover 3 and folding platform 7 and afterbody folding turnover to wait convenient bag to be folded On 4.After folding compression bar 1 is turned on stem folding turnover 3 under the driving of compression bar switching mechanism；Two handle turnover boards 2 are folded to two handles 60 on stem folding turnover 3 successively, and oscillating cylinder 32 makes driving claw 33 and is turned to stem folding After on turnover panel 3, multiposition cylinder 71, which opens first position, makes folding platform 7 move down a fragment position, and cylinder 91 opens driving pressure Trace plate 9 is moved down while is pressed on stem fold line 61 and afterbody fold line 62, is then resetted and is lifted.Afterwards, stem folding turnover 3 Swing and return after the stem of convenient bag is folded on folding platform 7 under the driving of oscillating cylinder 35, be then folded over turnover panel 4 and exist The aft section of convenient bag is folded to folding platform 7 above under the driving of oscillating cylinder 41 and then reset returns, multiposition cylinder 71 second position of opening make folding platform, and a foldable formed convenient bag moves down again in tow, easy to arrange bag.So far, convenient bag Folding work complete.

Claims (6)

1. a kind of folding device of plastic convenient bag, including rack, folding pressure lever mechanism, folding turnover, it is characterised in that：Institute Slipway mechanism is additionally provided with the rack stated, the folding pressure lever mechanism is located on slipway mechanism, after the slipway mechanism Stem folding turnover is additionally provided with the rack of face, the both sides of the stem folding turnover are respectively equipped with handle turnover board, and described carries It is connected with swing mechanism on handspring folded plate, the stem folding turnover is equipped with bag-clamping mechanism, before the folding turnover Or secondary hoistable platform is additionally provided with below, press plate mechanism or impression trigger structure are additionally provided with the rack.

A kind of 2. folding device of plastic convenient bag according to claim 1, it is characterised in that：The folding compression bar machine Structure is mainly made of folding compression bar, pressure arm, escapement, cylinder, splined shaft, oscillating cylinder.

A kind of 3. folding device of plastic convenient bag according to claim 1, it is characterised in that：The bag-clamping mechanism bag Containing a kind of oscillating cylinder and claw, the oscillating cylinder is installed on the front side of stem folding turnover, and the claw is connected to On the oscillating cylinder.

A kind of 4. folding device of plastic convenient bag according to claim 1, it is characterised in that：The press plate mechanism master To be made of driving mechanism before and after lower drive mechanism, pressing plate on pressing plate and pressing plate, driving mechanism includes one before and after the pressing plate Kind multiposition cylinder or electronic slide unit.

A kind of 5. folding device of plastic convenient bag according to claim 1, it is characterised in that：The folding turnover Bag supporting mechanism is equipped with further below.

A kind of 6. folding device of plastic convenient bag according to claim 1, it is characterised in that：The secondary lifting is put down Platform mechanism is mainly made of folding platform, cylinder, guide rod.