CN111497335A

CN111497335A - Opening device for bag opening of packaging bag

Info

Publication number: CN111497335A
Application number: CN202010385523.8A
Authority: CN
Inventors: 吴贻祥
Original assignee: Hefei Zhushi Technology Co ltd
Current assignee: Hefei Zhushi Technology Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-08-07

Abstract

The invention relates to a packaging bag opening device, which comprises an upper adsorption plate and a lower adsorption plate, wherein the upper adsorption plate and the lower adsorption plate are respectively abutted against or separated from the upper surface and the lower surface of a packaging bag raw material, a bag opening rod is further arranged between the upper adsorption plate and the lower adsorption plate, the bag opening rod extends into the packaging bag raw material and is far away from the two sides so as to open the packaging bag raw material, in the actual production of the packaging bag, the tubular packaging bag raw material is singly guided out through a feeding mechanism and is guided into an opening device, the opening of the packaging bag raw material is realized through the opening device, then the packaging bag raw material is pressed into rectangular box-shaped indentation by using an indentation device, so that crease marks of the packaging bag raw material are formed, then a bottom sealing device is used for sealing one end of the indented packaging bag raw material, the production of the packaging bag is finished, and the system can effectively improve the production efficiency, the bottom sealing reliability of the packaging bag is ensured.

Description

Opening device for bag opening of packaging bag

Technical Field

The invention relates to the technical field of packaging boxes, in particular to a packaging bag opening device.

Background

The clothing packaging bag is different from a common packaging bag in a certain degree, the clothing packaging bag is large in size, and the packaging bag is made of kraft paper materials, so that the clothing commodity can be effectively packaged, the grade of the clothing packaging bag is high, the packaging bag made of the kraft paper materials is different from common corrugated paper in texture, thin and soft, and therefore in the actual packaging bag processing process, the kraft paper materials are tubular, and the packaging bag materials are pressed and stacked into a paper board shape through pressing and stacking equipment. The wrapping bag raw materials pile up together of pressfitting together to corresponding use occasion, corresponding producer can carry out the back cover operation with wrapping bag raw materials bottom through artificial mode, then to the user demand, expand the wrapping bag behind the back cover, with the little commodity of weight such as dress, there is production efficiency low during the wrapping bag production among the prior art, and need the problem of a large amount of labours participation, take time and take a lot of work, and still there is the unreliable problem of wrapping bag back cover.

Disclosure of Invention

The invention aims to provide a packaging bag opening device which can effectively improve the production efficiency of a clothes packaging bag and ensure the bottom sealing reliability of the packaging bag.

The technical scheme adopted by the invention is as follows.

The utility model provides a wrapping bag sack struts device, includes adsorption plate and lower adsorption plate, go up adsorption plate and lower adsorption plate and support with the upper and lower surface of wrapping bag raw materials respectively and lean on or separate, it props the bag pole still to be provided with between the adsorption plate under and, prop the bag pole and stretch into in the wrapping bag raw materials and keep away from in order to implement the strutting to the wrapping bag raw materials to both sides.

The invention also has the following features:

the rope tightening device is characterized in that a tightening wheel is arranged on the rod body of the bag supporting rod, the tightening rope is arranged on the tightening wheel, a rope winding wheel is arranged on the bag supporting rod, one end of the tightening rope is arranged on the rope winding wheel, and the rope winding wheel tightens the tightening rope.

The bag opening rods are symmetrically provided with two groups, the bag opening rods are arranged on the unfolding sliding rods in a sliding mode, and the bag opening rods enclose a rectangular box-shaped structure.

The expansion sliding rod is provided with a sliding sleeve, a connecting rod is hinged to the sliding sleeve, the other end of the connecting rod is hinged to the rod body of the bag supporting rod, hinged shafts at two ends of the connecting rod are perpendicular to the length direction of the expansion sliding rod, an extrusion spring is arranged on the expansion sliding rod, a driving sliding sleeve is further sleeved on the expansion sliding rod, two ends of the extrusion spring are abutted to the rod end of the sliding sleeve and the driving sliding sleeve respectively, and a driving cylinder drives the driving sliding sleeve to slide along the expansion sliding rod.

The indentation device includes that the rotary type sets up the gyro wheel on propping the bag pole, the gyro wheel sets up the multiunit along propping bag pole length direction interval, the outer fringe and the wrapping bag raw materials inner wall of gyro wheel support and lean on, the outer lane that props the bag pole is provided with drive wrapping bag pivoted rotatory area, the rotation direction perpendicular to in rotatory area props the bag pole, the outside area face in rotatory area supports with wrapping bag raw materials outer wall and leans on and the interlock wrapping bag rotates.

The both ends that rotatory area is located to prop the bag pole are provided with two sets ofly, connect as an organic wholely through the actuating lever between the drive roller in rotatory area.

Prop the cover and be equipped with the sliding sleeve that resets on the bag pole, prop the cover and be equipped with the reduction torsion spring on the bag pole, the reduction torsion spring props the both ends of bag pole and is connected with the one end that resets the sliding sleeve respectively and props the bag pole, and the articulated connecting rod that resets that is provided with on the sliding sleeve that resets, tighten the rope line setting on the connecting rod that resets, the top and the below of crease rope are provided with indentation board and indentation board down respectively, go up the indentation board and be close to and implement the crimping operation to wrapping bag raw materials both sides with indentation board down.

The invention has the technical effects that: this wrapping bag is when actual production, the single derivation of tubular wrapping bag raw materials through feed mechanism to derive to in the sack strutting arrangement, implement the distraction to the wrapping bag raw materials through sack strutting arrangement, then utilize the indentation device to be the boxlike indentation of rectangle with wrapping bag raw materials pressfitting, thereby form the crease of wrapping bag raw materials, then utilize the back cover device to implement the operation of sealing to wrapping bag raw materials one end after the indentation, accomplish the production to the wrapping bag, this system can effectively improve the production efficiency to the dress wrapping bag, ensure the back cover reliability of wrapping bag.

Drawings

FIGS. 1 and 2 are schematic diagrams showing two perspective structures of a raw material feeding mechanism for packaging bags;

FIG. 3 is a front view of a bag material supply mechanism;

FIGS. 4 and 5 are schematic diagrams showing two perspective structures of a turning frame in a raw material supply mechanism of a packaging bag;

fig. 6 to 8 are schematic views of three visual angle structures of the turnover mechanism in the turnover frame;

FIGS. 9 and 10 are schematic views of two visual structures of the bag opening device and the indentation device;

FIG. 11 is a front view of the bag opening distractor and the indentation device;

FIG. 12 is a left side view of the pocket opening device and the indenting device;

fig. 13 and 14 are schematic views of two visual structures of the bag opening expanding device;

FIG. 15 is a front view of the pocket opening device and the indentation device;

FIGS. 16 and 17 are schematic views of two perspective structures of a part of the bag opening expanding device;

fig. 18 and fig. 19 are two view structure diagrams of a bag opening rod in the bag opening device;

fig. 20 and 21 are schematic views of two viewing angle structures of the indentation apparatus;

FIG. 22 is a schematic structural view of the indentation apparatus;

FIGS. 23 and 24 are schematic views of the bottom closing device and the board introducing device from two different perspectives;

FIG. 25 is a left side view of the back cover assembly and the board guide assembly;

FIG. 26 is a front view of the back cover assembly and the board guide assembly;

FIGS. 27 and 28 are schematic views of two perspective structures of the cardboard introducing apparatus;

FIGS. 29 and 30 are schematic views of two kinds of perspective views of a partial structure of a sheet introducing apparatus;

fig. 31 and 32 are schematic views of two viewing angle structures of the back cover device.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the invention will now be described in detail with reference to the following examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed. As used herein, the terms "parallel" and "perpendicular" are not limited to their strict geometric definitions, but include tolerances for machining or human error, legibility and inconsistency;

the bag mouth opening device of the present invention will be described in detail below with reference to the entire bag production system:

the present invention will be described in detail with reference to the accompanying drawings 1 to 32, in which:

a packaging bag production system comprises a packaging bag raw material feeding mechanism 10, wherein an outlet of the packaging bag raw material feeding mechanism 10 is provided with a bag opening device 20, the bag opening device 20 is used for opening packaging bag raw materials, an indentation device 30 is arranged on the bag opening device 20, the indentation device 30 is used for pressing an opened bag opening into an indentation according to the length direction, a bottom sealing device 40 is arranged beside the bag opening device 20, and a pipe orifice at one end of the packaging bag raw materials after indentation is arranged on the bottom sealing device 40 for bottom sealing operation;

with reference to fig. 1 to 3, 9 to 11, and 23 to 26, in the actual production of the packaging bag, the tubular packaging bag raw material is individually guided out by the feeding mechanism 10 and guided into the bag opening expanding device 20, the packaging bag raw material is expanded by the bag opening expanding device 20, then the packaging bag raw material is pressed into rectangular box-shaped indentations by the indentation device 30, so that the creases of the packaging bag raw material are formed, then the sealing operation for one end of the indented packaging bag raw material is performed by the bottom sealing device, and the production of the packaging bag is completed, so that the production efficiency of the clothing packaging bag can be effectively improved, and the reliability of the bottom sealing of the packaging bag is ensured;

the above-mentioned raw materials for the packing bag are tubular raw materials, and the raw materials for the packing bag are produced by the raw material producing machine to present a sheet-like structure pressed along the tube wall, and the raw materials for the packing bag are pressed together and stacked together and placed in the feeding mechanism 10, thereby completing the feeding operation of the raw materials for the single packing bag to facilitate the subsequent processing.

In order to improve the support of the bottom of the packaging bag on lighter articles such as clothes and the like, a paperboard guiding device 50 is further arranged on the bag opening device 20, and the paperboard guiding device 50 is used for guiding a paperboard into a pipe opening at one end of the packaging bag;

in order to enhance the supporting strength of the one end seal of the packaging bag, the bottom sealing device 40 guides the opening of one end of the packaging bag raw material into the bottom sealing paperboard through the paperboard guiding device 50 before sealing, so that the sealing operation of the packaging bag raw material can be effectively enhanced.

In order to realize the feeding of the raw materials of the packaging bags, the raw material feeding mechanism 10 of the packaging bags comprises a material feeding belt 11, an outlet of the material feeding belt 11 is provided with a turning frame 12, the turning frame 12 is connected with a turning mechanism, and the turning frame 12 is used for turning and flattening the raw materials of the single packaging bags;

the packaging bag raw material is guided out from the upstream production system to the feeding belt 11, then guided out to the turnover frame 12 for clamping, and the turnover frame 12 is used for overturning and flattening the packaging bag raw material, so that the packaging bag raw material is flattened to be flat, the subsequent opening operation is facilitated, and the subsequent crease and bottom sealing operation of the packaging bag raw material is ensured.

In order to realize the flattening operation of one end of each single packaging bag, the two overturning ends of the overturning frame 12 are provided with clamping mechanisms, and the clamping mechanisms are used for flattening one end of each single packaging bag raw material and keeping away from the two ends;

after one end of a single packaging bag raw material is flattened, the subsequent opening operation is facilitated by the clamping mechanism.

More specifically, as shown in fig. 1 to 3, the material supply belt 11 includes a plurality of clamping strips, the clamping strips are disposed on a rotating support roller of the material supply belt 11 at intervals, clamping elastic pieces 111 are disposed on the clamping strips, the material supply belt 11 is disposed in the vertical direction, upper and lower belt surfaces form a guiding channel for guiding and conveying the packaging bag, and the clamping elastic pieces 111 abut against the upper and lower bag surfaces of the packaging bag;

foretell wrapping bag raw materials is through the back of upper reaches production line production to on the guide sent to the material supply area 11, utilize centre gripping elasticity 111 to implement to leaning on of a side area face of wrapping bag raw materials, and the material supply area 11 upper and lower direction is arranged, utilize centre gripping shell fragment 111 to implement to leaning on of the upper and lower area face of wrapping bag raw materials, and then can effectively realize the feed operation to the wrapping bag raw materials, accomplish the guide of material supply bag raw materials and send.

Specifically, as shown in fig. 4 and 5, in order to position and guide a single packaging bag, a baffle 121 is disposed at one end of the roll-over stand 12, the baffle 121 is disposed along the width direction of the roll-over stand 12, the roll-over stand 12 includes a plurality of spoke rods disposed at intervals, the spoke rods are disposed along the length direction of the roll-over stand 12, flanges 122 are disposed at two sides of the roll-over stand 12, the flanges 122 are disposed along the length direction of the roll-over stand 12, and the flanges 122 are used for supporting two side positions of a single packaging bag;

under the effect of the conveying force of the feeding belt 11, make single wrapping bag raw materials derive to the roll-over stand 12 on, and implement the spacing that blocks of wrapping bag raw materials one end under the power that blocks of baffle 121, realize the effective positioning to the wrapping bag raw materials, confirm the position accuracy that the wrapping bag raw materials are located on the roll-over stand 12, the wrapping bag raw materials is implemented the bearing to both sides through turn-ups 122, avoid the wrapping bag to drop from the roll-over stand 12, after single wrapping bag is guided to the roll-over stand 12, roll-over stand 12 upset, thereby make the wrapping bag upset to the top position of roll-over stand 12, conveniently prop a mouthful operation.

In order to realize the turning action of the turning frame 12, as shown in fig. 6 to 8, a turning shaft is arranged at the middle section of the turning frame 12, the turning mechanism drives the turning shaft to turn 180 °, the clamping mechanism includes clamping claws 131 arranged at two sides of the feed end of the turning frame 12, supporting slide rods 132 are arranged at two sides of the clamping claws 131, two ends of the supporting slide rods 132 extend out of the turning frame 12 and are provided with return springs 133, two ends of the return springs 133 are respectively abutted against the rod ends of the supporting slide rods 132 and one side of the turning frame 12, the turning shaft of the turning frame 12 is rotatably arranged on the rack 14, a limiting track 141 is arranged on the rack 14, the limiting track 141 is integrally circular and is concentrically arranged with the turning shaft, and the rod ends of the supporting slide rods 132 are abutted against the limiting track 141;

the clamping claws 131 arranged on two sides of the feeding end of the turnover frame 12 can effectively clamp two sides of a raw material of a packaging bag, and after the turnover frame 12 is located on the rack 14 and rotates, the supporting slide rod 132 rotates along the limiting track 141, and under the elastic resetting force of the resetting spring 133, the clamping claws 131 move away from two sides of the packaging bag, so that the clamping and flattening operation of the packaging bag is realized, and the subsequent opening operation of the packaging bag is facilitated.

More specifically, the clamping claw 131 comprises an upper clamping plate 1311 and a lower clamping plate 1312 which are arranged at intervals, the lower clamping plate 1312 slides on the roll-over stand 12, the sliding direction of the lower clamping plate 1312 is perpendicular to the frame surface of the roll-over stand 12, a driving slide block 1313 is arranged on the lower clamping plate 1312, and the driving slide block 1313 is connected with one end of the supporting slide rod 132;

the upper clamping plate 1311 and the lower clamping plate 1312 form clamping claws 131 for clamping two sides of the raw material of the packaging bag, the driving sliding block 1313 is connected with one end of the supporting sliding rod 132, and under the elastic resetting force of the resetting spring 133, the driving sliding block 1313 is far away from two sides of the packaging bag to move, so that clamping and flattening operations on two sides of the packaging bag are realized, and subsequent opening operations of the packaging bag are facilitated.

Preferably, the lower plate surface of the lower clamping plate 1312 is provided with a first driving inclined surface, the driving slider 1313 is provided with a second driving inclined surface, the second driving inclined surface abuts against the first driving inclined surface, and the upper clamping plate 1311 is slidably arranged in the track;

under the reset force of the reset spring 133, a first driving inclined surface arranged on the lower plate surface of the lower clamping plate 1312 abuts against a second driving inclined surface arranged on the driving sliding block 1313, the clamping operation of the lower clamping plate 1312 and the upper clamping plate 1311 is realized, the lower clamping plate 1312 and the upper clamping plate 1311 are linked to move synchronously, the upper clamping plate 1311 is arranged on the track in a sliding mode through a supporting spring, the supporting spring enables the upper clamping plate 1311 to be located at the innermost end position of the turnover frame 12, and in the process that the lower clamping plate 1312 links the upper clamping plate 1311 to move, the supporting spring is compressed, and therefore the one end of the packaging bag is flattened.

In order to conveniently absorb the clamping claws 131 and clamp and unfold the two sides of the packaging bag and conveniently separate the packaging bag, a ball 1314 is arranged between the opposite surfaces of the upper clamping plate 1311 and the lower clamping plate 1312, and the ball 1314 forms a clamping point for clamping the upper plate surface and the lower plate surface of the packaging bag raw material;

when ball 1314 is implemented and is propped the wrapping bag both sides centre gripping, when implementing to the sack of wrapping bag and strut, the in-process that the wrapping bag strutted for wrapping bag and ball 1314 support and lean on, realize the opening operation to the wrapping bag.

More specifically, the turnover mechanism comprises a connecting rod 123 arranged at the end of a turnover shaft of the turnover frame 12, the connecting rod 123 is arranged perpendicular to the turnover shaft of the turnover frame 12, a turnover cylinder 124 is arranged at the rod end of the connecting rod 123, and a piston rod of the turnover cylinder 124 is connected with the rod end of the connecting rod 123;

when the turning frame 12 is rotated, the turning cylinder 124 is started to rotate the connecting rod 123, so that the turning frame 12 is linked to the rack 14 to turn 180 degrees, and the raw materials of the packaging bags are supplied.

More specifically, as shown in fig. 9 to 19, the bag opening expanding device 20 includes an upper adsorption plate 21 and a lower adsorption plate 22, the upper adsorption plate 21 and the lower adsorption plate 22 respectively abut against or separate from the upper and lower surfaces of the packaging bag raw material, a bag opening rod 23 is further disposed between the upper adsorption plate 21 and the lower adsorption plate 22, and the bag opening rod 23 extends into the packaging bag raw material and is far away from the two sides to open the packaging bag raw material;

foretell roll-over stand 12 upset 180 backs, implement the flat exhibition operation to the wrapping bag sack through the exhibition flat mechanism, it is close to with lower adsorption plate 22 to start adsorption plate 21, thereby make adsorption plate 21 and lower adsorption plate 22 be close to each other, with the reliable absorption that realizes the both sides position about the wrapping bag, and when going up adsorption plate 21 and keeping away from with lower adsorption plate 22, realize propping mouthful operation to the wrapping bag, the sack one end of wrapping bag props the back of opening, prop in bag pole 23 stretches into the sack of wrapping bag, thereby realize further propping mouthful operation to the wrapping bag.

As shown in fig. 12, the upper adsorption plate 21 is slidably disposed on the vertical sliding rod 211, a cross beam 212 is disposed at the upper end of the vertical sliding rod 211, a vertical cylinder 213 is disposed on the cross beam 212, the lower end of the vertical cylinder is connected to the upper plate surface of the upper adsorption plate 21, the lower end of the vertical sliding rod 211 extends out of the support plates at the two ends of the lower adsorption plate 22 and is connected to the base, and a spring 214 is sleeved on the vertical sliding rod 211, so that the upper adsorption plate 21 and the lower adsorption plate 22 are in a normally separated state.

More specifically, the bag supporting rod 23 is arranged on a transverse moving mechanism, the transverse moving mechanism drives the bag supporting rod 23 to move horizontally and extend into the packaging bag raw material, a tightening rope line 231 is arranged on the rod body of the bag supporting rod 23, and the tightening rope line 231 is used for supporting and opening the packaging bag raw material;

the transverse moving mechanism drives the bag supporting rod 23 to move horizontally and extend into the packaging bag, and the tightening rope line 231 on the bag supporting rod 23 moves horizontally, so that the tightening rope line 231 is abutted against the inner wall of the packaging bag, the tightening rope line 231 can be automatically clamped into the crease of the packaging bag, and the opening operation of the packaging bag is realized;

the tightening cord 231 can effectively achieve opening operation on the packaging bag, and the tightening cord 231 can avoid the problem that the packaging bag is broken due to overlarge tension force.

More specifically, a tightening wheel 232 is disposed on the shaft of the bag supporting rod 23, the tightening rope 231 is disposed on the tightening wheel 232, a rope winding wheel 233 is disposed on the bag supporting rod 23, one end of the tightening rope 231 is disposed on the rope winding wheel 233, and the rope winding wheel 233 performs a tightening operation of the tightening rope 231;

the winding wheel 233 is an elastic roller with an elastic winding function, the winding wheel 233 is used for realizing the tightening operation of the tightening rope 231, when the traversing mechanism is started, the bag supporting rod 23 is extended into the packaging bag, and the tightening rope 231 is abutted against the inner wall of the packaging bag, so that the tightening operation of the packaging bag is realized, and the crease is formed on the packaging bag;

the tightening rope line 231 is horizontally arranged and arranged along the length direction of the bag opening rod 23, so that the tightening rope line 231 is elastically supported and opened, the opening of the packaging bag is ensured, the packaging bag can be opened in an elastic opening mode, and the packaging bag is prevented from being broken.

More specifically, two groups of bag supporting rods 23 are symmetrically arranged, the bag supporting rods 23 are slidably arranged on the unfolding sliding rods 24, and the bag supporting rods 23 enclose a rectangular box-shaped structure;

the two groups of bag supporting rods 23 are symmetrically arranged in two groups along the length direction of the unfolding sliding rod 24, and the bag supporting rods 23 enclose a rectangular box-shaped structure, so that the bag supporting rods 23 are four, the bag supporting rods 23 slide along the unfolding sliding rod 24, the bag supporting rods 23 are far away from the unfolding sliding rod 24, the tightening rope 231 abuts against the inner wall of the packaging bag, and the packaging bag is opened.

More specifically, a sliding sleeve 241 is arranged on the unfolding sliding rod 24, a connecting rod 242 is hinged to the sliding sleeve 241, the other end of the connecting rod 242 is hinged to a rod body of the bag supporting rod 23, hinge shafts at two ends of the connecting rod 242 are perpendicular to the length direction of the unfolding sliding rod 24, an extrusion spring 243 is arranged on the unfolding sliding rod 24, a driving sliding sleeve 244 is further sleeved on the unfolding sliding rod 24, two ends of the extrusion spring 243 are respectively abutted to the rod end of the sliding sleeve 241 and the driving sliding sleeve 244, and a driving cylinder drives the driving sliding sleeve 244 to slide along the unfolding sliding rod 24;

when the opening of the packaging bag is implemented, the upper adsorption plate 21 and the lower adsorption plate 22 approach each other, and the two ends of the packaging bag are attached, then the suction mechanism is started, so that the upper adsorption plate 21 and the lower adsorption plate 22 are far away, the opening operation of the packaging bag is implemented, then the bag opening rod 23 extends into the packaging bag, and the driving cylinder is started, so that the driving sliding sleeve 244 rotates along the sliding rod 24, the linkage sliding sleeve 241 slides along the unfolding sliding rod 24, the linkage connecting rod 242 is unfolded, the opening operation of the bag opening rod 23 is implemented, and the opening operation of the packaging bag is completed;

as shown in fig. 12, the cylinder for driving the driving sliding sleeve 244 to slide is a first driving cylinder 245, a piston rod of the first driving cylinder 245 is connected with one end of the driving sliding sleeve 244, one end of the driving sliding sleeve 244 is provided with a first sliding rod 2451, and the first sliding rod 2451 is arranged in parallel with the first driving cylinder 245 to realize sliding guidance of the driving sliding sleeve 244;

the stay bar 23 and all the accessories thereof are integrally arranged on a separating mechanism, the separating mechanism comprises a second driving cylinder 25 arranged in parallel with a first driving cylinder 245, the cylinder body of the first driving cylinder 245 is fixed on a rack, the rack is connected with the piston rod of the second driving cylinder 25, a second sliding rod 251 is arranged in parallel with the second driving cylinder 25, and the second sliding rod 251 is arranged on the rack 252 in a sliding manner, so that the integral sliding support for the whole stay bar 23 and all the accessories thereof is realized, the raw materials of the packaging bags are supported and transported out in a sliding manner, and the interference of actions with other mechanisms is avoided.

The driving sliding sleeve 244 is connected with the sliding sleeve 241 through the extrusion spring 243, so that the bag supporting rod 23 is elastically abutted against the inner wall of the packaging bag, the elastic extrusion force of the extrusion spring 243 is utilized, the tightening rope 231 can automatically find the crease position of the inner wall of the packaging bag, opening operation of the packaging bag is realized, the problem of breakage of the opening position of the packaging bag is avoided, and the problem of damage of folds of the bag opening position of the packaging bag is ensured.

More specifically, as shown in fig. 20 to 22, the indentation device 30 includes rollers 31 rotatably disposed on the bag opening rod 23, the rollers 31 are disposed at intervals along the length direction of the bag opening rod 23, the outer edge of the roller 31 abuts against the inner wall of the raw material of the packaging bag, the outer ring of the bag opening rod 23 is provided with a rotating belt 32 for driving the packaging bag to rotate, the rotating direction of the rotating belt 32 is perpendicular to the bag opening rod 23, and the outer side surface of the rotating belt 32 abuts against the outer wall of the raw material of the packaging bag and drives the packaging bag to rotate;

after the packaging bag is unfolded, the position of the folding line of the packaging bag needs to be adjusted in one direction, so that the packaging bag forms two folding lines along the length direction, and the packaging bag forms a rectangular section structure, and when the packaging bag is actually used, the packaging bag is suitable for packaging high-grade clothes, so that the appearance grade of the packaging bag is more sufficient, and the packaging bag is suitable for packaging high-grade clothes, after the bag opening rod 23 extends into the packaging bag, the roller 31 on the bag opening rod 23 is abutted against the inner wall of the packaging bag, under the driving force action of the rotating belt 23, the packaging bag is positioned on the bag opening rod 23 to rotate, and further the angle of the rotating movement of the packaging bag is further realized, so that the raw material of the packaging bag is rotated, the folding line operation of another position of the packaging bag is realized, an effective folding line is also formed at another position of the packaging bag, so that two sides of, and finishing subsequent further bottom sealing operation to ensure the later forming quality of the packaging bag.

In order to ensure that the packaging bags positioned on the bag opening rod 23 can effectively rotate, so that the packaging bags positioned on the bag opening rod 23 synchronously rotate, two groups of rotating belts 32 are arranged at two ends of the bag opening rod 23, and driving rollers of the rotating belts 32 are connected into a whole through a driving rod;

foretell rotatory area 32 is located the both ends that prop bag pole 23 and sets up two sets ofly, and then realizes the synchronous revolution to the wrapping bag both ends for the wrapping bag is located to prop bag pole 23 and rotates certain angle, in order to realize the crease operation to another position department of wrapping bag, and foretell rotatory area 32 cover is established on two sets of drive rollers, and the one end and the driving motor 321 of drive roller are connected, and driving motor 321 can drive two sets of rotatory areas 32 in step.

More specifically, after the packaging bag is located and props a certain angle of rotation of bag pole 23, prop the side intermediate position of bag pole 23 and still be provided with crease rope 33, crease rope 33 with prop the length direction parallel arrangement of bag pole 23, crease rope 33 is located the translation mechanism, and translation mechanism drive crease rope 33 horizontal migration just implements the crease operation to two crease department middle section positions of packaging bag;

after the packaging bag is positioned on the bag supporting rod 23 and rotates for a certain angle, the crease of the raw material of the packaging bag rotates to the position of the tightening rope line 231 of the bag supporting rod 23 at another position, then the crease rope 33 moves in opposite directions under the action of the translation mechanism, so that the crease rope 33 is close to each other, the packaging bag can be positioned at the two side positions to form a V-shaped crease structure by matching with the four tightening rope lines 231, and then the crease areas at the two sides are formed, so that three creases are formed at the two sides of the packaging bag respectively, effective accommodating spaces are formed at the two sides of the packaging bag, and the grade of the packaging bag is more sufficient.

More specifically, the crease rope 33 is rotatably disposed on a crease bar 34, a crease roller 341 is rotatably disposed on the crease bar 34, a rotating shaft of the crease roller 341 is perpendicular to the crease bar 34, the crease rope 33 is disposed on the crease roller 341 such that the crease rope 33 is disposed in parallel with a length direction of the crease bar 34;

the crease roller 341 straightens the crease rope 33 effectively, so that the transverse crease rope 33 is straightened effectively, and the crease ropes 33 move in opposite directions, so that the two sides of the packaging bag form a V-shaped folding area to form a packaging bag structure, and the packaging bag with the structure can be used for effectively accommodating clothes.

To perform the operation of tensioning the crease rope 33, one end of the crease rope 33 is connected to a winding wheel 344, and the winding wheel 344 is used for performing the operation of winding the crease rope 33;

the crease line 33 is wound by the winding wheel 344, and the winding wheel 344 can be automatically tightened, so that the crease line 33 can be elastically tensioned, creases are formed on two sides of the packaging bag, and the two sides of the packaging bag can be prevented from being damaged.

More specifically, as shown in fig. 20 and 21, the translation mechanism includes a slider 36 disposed on the crease bar 34, the slider 36 is slidably disposed on a track 362, the track 362 is horizontal and perpendicular to the length direction of the crease bar 34, the sliders 36 are respectively provided with a first nut 361, the first nuts 361 are respectively matched with the driving screws 362, the spiral directions of the driving screws 362 are opposite, one end of the driving screw 362 is connected with the power motor 363, and by starting the power motor 363, the synchronous equidirectional or opposite driving of the crease bars 34 on two sides is realized, so as to realize the crease operation on the side edge of the packaging bag;

after translation cylinder 344 started, translation connecting rod 343 interlock crease pole 34 horizontal migration just made crease rope 33 lean on with the wrapping bag is inboard to make the wrapping bag outside form the crease, so that the both sides of wrapping bag form the structure of "V" shape, thereby make things convenient for subsequent coincide, during the use, expand wrapping bag both sides position, make the cross-section of wrapping bag form the rectangle structure.

The bag supporting rod 23 is sleeved with a reset sliding sleeve 235, the bag supporting rod 23 is sleeved with a reset torsion spring 236, two ends of the reset torsion spring bag supporting rod 23 are respectively connected with one end of the reset sliding sleeve 235 and the bag supporting rod 23, the reset sliding sleeve 235 is hinged with a reset connecting rod 234, the tightening rope 231 is arranged on the reset connecting rod 234, an upper indentation plate 351 and a lower indentation plate 352 are respectively arranged above and below the crease rope 33, and the upper indentation plate 351 and the lower indentation plate 352 are close to each other and perform compression joint operation on two sides of the packaging bag raw material;

when the creasing operation is performed on the positions on the two sides of the packaging bag, the crease rope 33 and the tightening rope line 231 of the packaging bag are respectively tightened with the positions on the two sides of the packaging bag, so that the packaging bag forms a tubular structure with a rectangular cross section, the crease rope 33 enables the two sides of the packaging bag to form a V-shaped mechanism, the upper creasing plate 351 and the lower creasing plate 352 are close to each other, the resetting sliding sleeve 235 is positioned on the bag supporting rod 23 to rotate, the crease rope 33 and the tightening rope line 231 are pressed into a straight line until the positions on the two sides of the packaging bag are pressed into a V-shaped structure, so that the two sides of the packaging bag respectively form three creases to form a packaging bag structure, and the subsequent production and processing operation is facilitated, so that the further overlapping and finishing are facilitated;

when the upper indentation plate 351 and the lower indentation plate 352 are separated from each other, the crease line 33 and the crease bar 34 and the bag opening bar 23 where the tightening line 231 is located are reset, so that the packaging bag is opened again to form a tubular structure with a rectangular cross section;

referring to fig. 23 to 26, the bottom sealing device 40 includes a transfer rail 41 disposed beside the bag opening device 20, the transfer mechanism drives the bag opening device 20 and the indentation device 30 to transfer the raw material of the packaging bag to the position of the bottom sealing device 40, the bottom sealing device 40 further includes an upper suction plate 42 and a lower suction plate 43 disposed at one end of the transfer rail 41, the upper suction plate 42 and the lower suction plate 43 are close to or far from each other and perform the opening operation on the packaging bag, the upper suction plate 42 and the lower suction plate 43 are disposed on a turnover mechanism, and the turnover mechanism drives the upper suction plate 42 and the lower suction plate 43 to turn over and enables the upper suction plate 42 and the lower suction plate 43 to be in a horizontal state and a vertical state;

the above-mentioned wrapping bag is through propping bag pole 23 and restoring back, makes the wrapping bag expand again and become the tubular structure that the cross-section is the rectangle, then the transportation just starts, makes the wrapping bag transportation back cover device 40 position department that struts, then upper and lower suction plate 42, 43 are close to each other, and carry out the absorption to wrapping bag one end sack both sides, and drive sliding sleeve 244 resets along the gliding drive actuating cylinder of expansion slide bar 24, makes and props bag pole 23 and restore, the separating mechanism includes with the parallel second drive actuating cylinder 25 of first drive actuating cylinder 245, the cylinder body of first drive actuating cylinder 245 is fixed in the frame, the frame is connected with the piston rod of second drive actuating cylinder 25, second drive actuating cylinder 25 has arranged in parallel the second slide bar 251, second slide bar 251 slides and sets up on frame 252 to realize the whole sliding support of whole vaulting pole 23 and all accessories thereof, the bag opening and folding mechanism is used for opening and folding the raw materials of the packaging bags to avoid action interference with other mechanisms, the separation mechanism drives the bag opening rod 23 to be separated from the packaging bags, so that the bag opening rod 23 is reset, and after the bag opening rod 23 is separated from the packaging bags, the transfer mechanism is started to transfer the bag opening rod 23 to the position of the turnover frame 12 to realize opening and folding transverse operation of the next packaging bag;

specifically, the upper suction plate 42 and the lower suction plate 43 are slidably disposed on a rotary slide rod 44, the rotary slide rod 44 is rotatably disposed on a frame 45, and a rotary cylinder 46 is disposed on the frame 45;

after the upper suction plate 42 and the lower suction plate 43 are separated, the packaging bag is opened, and the rotating cylinder 46 is started, so that the upper suction plate 42, the lower suction plate 43 and the packaging bag are turned, the bottom sealing end of the packaging bag is turned, the opening of the bag mouth of the packaging bag is in a state of upward opening, a paperboard can be conveniently guided into the position of the sealing end of the packaging bag, and further bottom sealing operation of the packaging bag is facilitated;

after the upper suction plate 42 and the lower suction plate 43 are positioned at the positions of the packaging bags and turned over, one end of each packaging bag is close to the opening to be turned over, so that the turning over operation of one end of each packaging bag is realized, and the opening of one end of each packaging bag is vertically upward;

the upper suction plate 42 is arranged on the vertical rod 422 in a sliding mode, the upper end of the vertical rod 422 is provided with a cross beam, the cross beam is provided with a lifting cylinder 421, the lower end of a piston rod of the lifting cylinder 421 is connected with the upper plate surface of the upper suction plate 42, the upper suction plate 42 and the lower suction plate 43 are close to or separated from each other, and one end of the packaging bag is opened.

In order to push the paper boards into the vertical opening at one end of the packaging bag, as shown in fig. 27 to 30, the paper board guiding device 50 includes a guiding tube 51, a pushing mechanism is disposed in the guiding tube 51, the pushing mechanism is used for pushing out a single paper board from the opening of the guiding tube 51, and the guiding tube 51 moves vertically and forms an insertion and separation fit with the opening at one end of the packaging bag raw material;

the introducing pipe 51 moves vertically and is inserted into a bag opening at one end of the packaging bag, so that the paper board is pushed out from the pipe opening at one end of the introducing pipe 51 to the pipe opening at one end of the packaging bag raw material under the pushing action of the pushing mechanism, and the introducing operation of the paper board is realized.

The two side arms of the introducing pipe 51 are provided with supporting plates 52, the supporting plates 52 are far away from or close to and perform an opening operation on a pipe orifice at one end of the raw material of the packaging bag, one end of each supporting plate 52 is provided with a supporting plate 521, a sliding rod 522 is arranged on each supporting plate 521, each supporting plate 521 is arranged on each sliding rod 522 in a sliding manner, one end, extending out of each supporting plate 521, of each sliding rod 522 is sleeved with an opening spring 523, and two ends of each opening spring 523 abut against the rod end of each sliding rod 522 and each supporting plate;

when the mouth of one end of the packaging bag is turned over and is in a vertical state, the introducing pipe 51 extends into the mouth of one end of the packaging bag under the action of the material pushing mechanism so as to realize positioning and opening of the mouth of the packaging bag, then the supporting plates 52 at two sides of the introducing pipe 51 realize elastic support through the opening springs 523, and further the section length of the introducing pipe 51 is lengthened, so that the paperboard can be effectively guided out from the introducing pipe 51 to the mouth of one end of the packaging bag, and further the bottom sealing operation of the packaging bag is completed;

the supporting plate 52 is slidably disposed at a nozzle position of one end of the guiding tube 51 through the sliding rod 522, so as to effectively support the guiding tube 51 and ensure that the packaging bag is completely opened, thereby ensuring that the cardboard can be effectively guided into the bottom position of the packaging bag.

More specifically, the pushing mechanism comprises a push plate 53 arranged in the introducing pipe 51, and the push plate 53 moves along the length direction of the introducing pipe 51 and pushes the paper board out of the orifice of the introducing pipe 51;

the cardboard is placed in the lumen of introducing tube 51 to push pedal 53 makes push pedal 53 slide along the tube length direction of introducing tube 51 under the push mechanism effect, thereby pushes out the cardboard in introducing tube 51 to the one end position of wrapping bag from the mouth of pipe department, puts the sack position at the wrapping bag with the cardboard, accomplishes the feed and the propelling movement to the cardboard.

More specifically, the support plate 521 is provided with a pushing folded plate 524, the pushing mechanism further includes a piston rod of a pushing cylinder 54 connected to the push plate 53, a driving roller 541 is provided on the piston rod of the pushing cylinder 54, and a rim of the driving roller 541 abuts against the pushing folded plate 524 to stretch the support plate 52;

when the paper board in the guide-in pipe 51 is pushed, the pushing cylinder 54 is started, so that the rim of the driving roller 541 is abutted to the pushing folded plate 524, the supporting plate 52 slides along the sliding rod 522, the outer wall of the guiding-in pipe 51 is far away from the supporting plate 52, the opening of the packaging bag is supported, the opening of one end of the packaging bag can be supported while the paper board is guided into the opening of the one end of the packaging bag, the paper board can be effectively guided into the opening of the packaging bag, and the operation of guiding and conveying the paper board is completed.

In order to guide the paper boards, a paper board feeding port 511 is arranged on the wall of one side of the inlet pipe 51, a material guide roller 512 is arranged at the inlet of the feeding port 511, the material guide roller 512 is used for guiding the paper boards into the inlet pipe 51 from the feeding port 511, and bristles 513 are arranged on the inner wall of the inlet pipe 51;

a feeding opening 511 is formed in a pipe wall on one side of the inlet pipe 51, the paper boards are stacked and placed in the feeding bin, the feeding bin is provided with a paper board guiding mechanism, the paper board guiding mechanism is provided with an outlet, the outlet is connected with a feeding opening of the feeding opening 511, a single paper board is guided out to a pipe cavity of the inlet pipe 51 by using a guiding roller 512, so that the guiding operation of the single paper board is realized, the board surface of the paper board is guided in a state that the paper board is perpendicular to the inlet pipe 51, and the pushing plate 53 slides along the pipe length direction of the inlet pipe 51 to guide the paper board out of the pipe opening of the inlet pipe 51, so that the guiding operation of the paper board is;

the bristles 513 are arranged on the inner wall of the introducing tube 51 to support the paper board, and under the pushing force of the pushing plate 53, the pushing plate 53 slides along the introducing tube 51 to push the paper board out of the introducing tube 51;

the bristles 513 can effectively achieve the covering of the paper board, and prevent the paper board from falling from the lower end pipe orifice of the guide-in pipe 51 at will.

More specifically, the cylinder body of the pushing cylinder 54 is arranged on a lifting table 55, the lifting table 55 is connected with the piston rod of a lifting cylinder 56, and the piston rod of the lifting cylinder 56 drives the pushing cylinder 54 to move vertically and enables the introducing pipe 51 to extend into the mouth of one end of the raw material of the packaging bag;

before the paperboard is pushed into the opening of the guide-in pipe 51, the lifting cylinder 56 acts to guide the guide-in pipe 51 out of the opening at one end of the packaging bag, and then the pushing cylinder 54 is started to enable the push plate 53 to slide along the length direction of the guide-in pipe 51, so that the paperboard in the guide-in pipe 51 is pushed out to the opening at one end of the packaging bag, and the bottom of the packaging bag is reinforced.

In order to seal one end of the packaging bag into which the cardboard is introduced, as shown in fig. 31 and 32, the bottom sealing device 40 further includes folding plates 47 disposed at two sides of the introducing pipe 51, and the folding plates 47 are close to the supporting plate 52 and perform a turning action to turn over the two sides of the bottom of the packaging bag material to the inside;

after the cardboard is guided into the mouth of the first end of the packaging bag, the lifting mechanism resets, so that the guide tube 51 is separated from the mouth of the first end of the packaging bag, the folding plate 47 is started and is close to the supporting plate 52, and after the guide tube 51 is separated from the supporting plate 52, the folding plate 47 turns over, so that the two sides of the packaging bag are turned inwards, the packaging bag is sealed, and the packaging bag is sealed.

More specifically, the folding plate 47 is rotatably disposed on the push plate 471, a hinge shaft of the folding plate 47 is horizontal and is perpendicular to a moving direction of the folding plate 47, a torsion spring is sleeved on the hinge shaft of the folding plate 47, two ends of the torsion spring respectively abut against the hinge shaft and the folding plate 47, and the torsion spring enables the folding plate 47 to be in a state that a plate surface is vertical;

when the folding operation is performed on the two sides of the packaging bag, the folding plates 47 are close to each other and abut against the supporting plates 52 on the two sides of the inlet pipe 51, and after the folding plates 47 are close to the supporting plates 52, and the folding plates 47 rotate around the hinge shafts, the penguin compresses the torsion springs, so that the folding plates 47 are folded to be in a horizontal state, and then the folding operation on the two sides of the packaging bag is completed, and the folding operation on the two sides of the packaging bag is realized.

More specifically, a stop lever 48 is arranged on a moving path of the folding plate 47, the stop lever 48 abuts against the folding plate 47, and the stop lever 48 enables the folding plate 47 to rotate around a hinge shaft and turns the two sides of the bottom of the packaging bag raw material inwards;

when the driving mechanism drives the folding plate 47 to approach, the folding plate 47 abuts against the stop rod 48, so that the folding plate 47 rotates around the hinge shaft to compress the torsion spring, the folding plate 47 rotates to be in a horizontal state, the folding plate 47 and two sides of the packaging bag are overlapped, the packaging bag is sealed, the paperboard is prevented from falling off from the mouth of the packaging bag, the packaging bags are overlapped together and transferred to a use place during actual use, and then a user opens the packaging bag and seals the bottom sealing position together to finish the opening operation of the packaging bag, and articles such as clothes and the like can be directly loaded in the packaging bag;

the multiple baffle rods 48 are arranged in parallel at intervals to realize carrying operation of the packaging bags, the baffle rods 48 are provided with vertical sliding rods 481, the vertical sliding rods 481 are vertically arranged on the rack in a sliding mode, return springs 482 are sleeved on the vertical sliding rods 481, the upper ends and the lower ends of the return springs 482 are respectively abutted against the baffle rods 48 and the rack to support the packaging bags like a sleeve type of a person, and after the upper suction plates 42 and the lower suction plates 43 clamp one end of the packaging bags, the bag mouth opening device 20 is separated from the packaging belt to enable the bag mouth opening box 20 to reset and carry out carrying on new packaging bags, then the upper suction plates 42 and the lower suction plates 43 are turned over to enable the bag mouth at one end of the packaging bag to be vertically upward and the bag mouth of the packaging bag to be opened so that the guide pipe 51 extends into the bag mouth of the packaging bag, and then the folding plate 47 is started to carry out folding;

the push plate 471 is provided with a driving nut 4721, the driving nut 4721 is respectively connected with the driving screw 472, the driving screw rod 472 is provided with a reverse screw thread section, one end of the driving screw rod 472 is connected with a motor 473, the motor 473 is fixed on a frame plate, a supporting plate 475 is arranged below the frame plate, a lifting cylinder 474 is arranged on the frame plate 475, a piston rod of the lifting cylinder 474 is vertical and is connected with the supporting plate 475, the folding plates 47 are vertically lifted by actuating the lifting cylinder 474, and the motor 473 is actuated to bring the folding plates 47 close to each other, so as to realize the folding operation of the two sides of the packing bag, the frame plate 475 is provided with a supporting slide bar 4751, the supporting slide bar 4751 vertically extends out of the upper plate surface of the frame plate, the supporting slide bar 4751 is sleeved with a supporting spring 4752, and two ends of the supporting spring 4752 are respectively abutted against the upper ends of the frame plate and the supporting slide bar 4751, so that the frame plate and the supporting plate 475 are in a close state under a normal state.

The production method of the packaging bag comprises the following steps:

firstly, sealing kraft paper into a tubular material by using a sealing mechanism, and pressing the tubular material into a sheet-shaped packaging bag blank by using a pressing mechanism to guide the sheet-shaped packaging bag blank into a packaging bag raw material feeding mechanism 10;

secondly, the packaging bag raw material feeding mechanism 10 guides the single packaging bag raw material to the turning frame 12;

thirdly, the turning frame 12 turns over, and the raw materials of the packaging bags are turned over for 180 degrees and are guided to the position of the bag opening device 20;

fourthly, the upper adsorption plate 21 and the lower adsorption plate 22 of the bag opening expanding device 20 are attached to and far away from the bag opening of the packaging bag, so that the bag opening of the packaging bag is expanded, and then the bag expanding rod 23 extends into the bag opening of the packaging bag, so that the expanding operation of the packaging bag is realized;

fifthly, starting the rotating belt 32 to enable the packaging bag to rotate for a certain angle at the bag opening rod 23, then stopping the rotating belt 32, starting the driving cylinder to enable the bag opening rod 23 to be close to the inner wall of the packaging bag, and enabling the tightening rope line 231 to be abutted against the crease of the inner wall of the packaging bag, so that the packaging bag is opened;

sixthly, starting the translation mechanism to enable the crease bar 34 beside the bag supporting bar 23 to be close to the bag supporting bar, and enabling the crease rope 33 on the crease bar 34 to be abutted against the outer side of the packaging bag, so that the crease operation on the outer side of the packaging bag is realized;

seventhly, starting the upper indentation plate 351 and the lower indentation plate 352 to approach to each other, so as to realize indentation operation on the packaging bag on the bag opening rod 23, and then keeping the upper indentation plate 351 and the lower indentation plate 352 away from each other;

eighthly, starting a transfer mechanism to transfer the packaging bag raw materials on the bag supporting rod 23 to the bottom sealing device 40, starting the upper and

lower suction plates

42 and 43 to approach each other so that the upper and

lower suction plates

42 and 43 are respectively attached to the upper and lower bag openings of the packaging bags, starting the turnover mechanism to enable the pipe orifice at one end of the packaging bag to be changed from a horizontal state to a vertical state, and keeping the upper and

lower suction plates

42 and 43 away from each other so that the bag openings of the packaging bags are opened;

ninth, starting the lifting mechanism to enable the lead-in pipe 51 to extend into the bag mouth position of the packaging bag, and starting the material pushing mechanism to enable the paper board in the lead-in pipe 51 to be led out to the bag mouth position of the packaging bag;

tenth step, starting the folding plate 47 of the bottom sealing device 40 to enable the folding plate 47 to be close to the supporting plate 52, enabling the lifting mechanism to reset, enabling the introducing pipe 51 to be drawn out from the bag opening of the packaging bag, enabling the folding plate 47 to be turned to be in a horizontal state, and further achieving turning operation on two sides of the bottom sealing position of the packaging bag;

the eleventh step, the folding plate 47 of the bottom sealing device 40 is reset, and the upper and

lower suction plates

42, 43 move horizontally and guide out the packaging bag;

and a twelfth step of repeating the third step to the thirteenth step until the packaging bag raw material in the packaging bag raw material supply mechanism 10 is folded.

Claims

1. The utility model provides a wrapping bag sack struts device which characterized in that: including last adsorption plate (21) and lower adsorption plate (22), go up adsorption plate (21) and lower adsorption plate (22) and support with the upper and lower surface of wrapping bag raw materials respectively and lean on or separate, it props bag pole (23) still to be provided with between adsorption plate (21) and lower adsorption plate (22) to prop, prop bag pole (23) stretch into in the wrapping bag raw materials and keep away from in order to implement the distraction to the wrapping bag raw materials to both sides.

2. A bag mouth opening apparatus according to claim 1, wherein: prop bag pole (23) and set up on the sideslip mechanism, the sideslip mechanism drive props in bag pole (23) horizontal migration and stretches into the wrapping bag raw materials, prop and be provided with on the pole body of bag pole (23) and tighten rope line (231), tighten rope line (231) are used for propping up the wrapping bag raw materials and open.

3. A bag mouth opening apparatus according to claim 2, wherein: the rope tightening device is characterized in that a tightening wheel (232) is arranged on the body of the bag supporting rod (23), a tightening rope (231) is arranged on the tightening wheel (232), a rope winding wheel (233) is arranged on the bag supporting rod (23), one end of the tightening rope (231) is arranged on the rope winding wheel (233), and the rope winding wheel (233) tightens the tightening rope (231).

4. A bag mouth opener according to claim 3, in which: prop bag pole (23) symmetry and be provided with two sets ofly, prop bag pole (23) and slide and set up on expanding slide bar (24), prop bag pole (23) and enclose synthetic rectangle box-like structure.

5. A bag mouth opener according to claim 4, in which: expand and be provided with sliding sleeve (241) on slide bar (24), the articulated connecting rod (242) that is provided with on sliding sleeve (241), the other end of connecting rod (242) is articulated with the pole body of propping bag pole (23), the articulated shaft at connecting rod (242) both ends is perpendicular with the length direction who expands slide bar (24), be provided with extrusion spring (243) on expanding slide bar (24), it is equipped with drive sliding sleeve (244) still to overlap on expanding slide bar (24), the both ends of extrusion spring (243) support with the rod end and the drive sliding sleeve (244) of sliding sleeve (241) respectively and lean on, and drive cylinder drive sliding sleeve (244) slide along expanding slide bar (24).

6. A bag mouth opener according to claim 5, in which: prop and be provided with gyro wheel (31) on bag pole (23), gyro wheel (31) set up the multiunit along propping bag pole (23) length direction interval, the outer fringe and the wrapping bag raw materials inner wall of gyro wheel (31) support and lean on, the outer lane that props bag pole (23) is provided with drive wrapping bag pivoted rotatory area (32), the rotation direction perpendicular to in rotatory area (32) props bag pole (23), the outside area face and the wrapping bag raw materials outer wall in rotatory area (32) support and lean on and the interlock wrapping bag rotates.

7. A bag mouth opener according to claim 6, in which: the two ends of the rotating belt (32) located on the bag supporting rod (23) are provided with two groups, and the driving rollers of the rotating belt (32) are connected into a whole through the driving rod.

8. A bag mouth opener according to claim 7, in which: prop bag pole (23) and go up the cover and be equipped with the sliding sleeve that resets (235), prop bag pole (23) and go up the cover and be equipped with reset torsion spring (236), reset torsion spring props the both ends of bag pole (23) and is connected with the one end of sliding sleeve that resets (235) respectively and props bag pole (23), and the articulated connecting rod that resets (234) that is provided with on the sliding sleeve that resets (235), it sets up on connecting rod (234) to tighten rope line (231).

9. A bag mouth opener according to claim 8, in which: one end of the driving sliding sleeve (244) is connected with a piston rod of a first driving cylinder (245), one end of the driving sliding sleeve (244) is provided with a first sliding rod (2451), and the first sliding rod (2451) is arranged in parallel with the first driving cylinder (245); the unfolding sliding rod (24) is arranged on a separating mechanism, the separating mechanism comprises a second driving air cylinder (25) arranged in parallel with a first driving air cylinder (245), the cylinder body of the first driving air cylinder (245) is fixed on a rack, the rack is connected with the piston rod of the second driving air cylinder (25), a second sliding rod (251) is arranged in parallel with the second driving air cylinder (25), and the second sliding rod (251) is arranged on the rack (252) in a sliding mode.

10. Wrapping bag production system, its characterized in that: the pouch producing system comprising the pouch opening opener according to any one of claims 1 to 9.