CN111439431B

CN111439431B - Bag taking and opening equipment and bag taking and opening method for packaging bags

Info

Publication number: CN111439431B
Application number: CN202010447257.7A
Authority: CN
Inventors: 吕彦民
Original assignee: Zhejiang Carrying Packaging Co ltd
Current assignee: Zhejiang Carrying Packaging Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2024-05-17
Anticipated expiration: 2040-05-25
Also published as: CN111439431A

Abstract

The bag taking and opening device comprises a bag taking device, a bag opening device and a bag opening fixing device; the bag taking device comprises a platform, a driving belt end point in the vertical direction is arranged below the platform, a product conveying belt is arranged behind the bag taking device, and a discharging opening and a bag opening fixing device are arranged above the product conveying belt; the bag taking device comprises a bag clamping push-pull mechanism, a bag pressing mechanism, a bag dividing transverse bar, a bag taking device mechanism and a pressure lever mechanism; the bag opening device comprises a bag opening mechanism and a bag opening rotating mechanism; the bag mouth fixing device comprises a bag mouth clamping plate mechanism, a bag mouth tensioning mechanism and a packaging bag baffle mechanism, the stacked packaging bags can be accurately separated, the bag falling phenomenon in the bag taking process can be prevented, the displacement phenomenon of the lower packaging bag is avoided, the folds, the folding angles and the like of the packaging bag can be leveled, the bag mouth is parallel to the rear end of the bottom plate while the packaging bag is leveled, the failure rate can be reduced, the energy consumption is reduced, and the production efficiency is improved.

Description

Bag taking and opening equipment and bag taking and opening method for packaging bags

Technical Field

The invention relates to bag taking and opening equipment and a bag taking and opening method thereof, in particular to bag taking and opening equipment and a bag taking and opening method thereof for a packaging bag, and belongs to the field of packaging equipment.

Background

In the traditional industrial product production, powder and granular products are generally packaged by using woven bags, and the bagging work of the products is almost manually finished originally, and because the bagged products are mostly powder products, the powder products have the characteristics of large pollution, dust ripple and the like, can bring negative effects to the physical health of operators, have large labor intensity, and have very large mobility for operators engaged in the aspect.

In recent years, with the development of industrial production scale in China, the cost of manpower resources is gradually increased, some equipment for replacing manually operated packaging bags appears, in the conventional packaging bag operation, a general bag taking device adopts a transverse bag taking mode (the long side of the packaging bag is transverse), a bag taking suction nozzle sucks bags along the edge of the long side of the packaging bag from the upper layers of the stacked packaging bags, after the bags are sucked, the packaging bags are lifted to be higher than an operation platform by a certain height, then transversely move to the middle position on the platform, then, the suction nozzle is closed, the packaging bags naturally fall onto the platform by utilizing the dead weight of the packaging bags, finally, the bag opening is opened by using the suction nozzle, and the following defects exist in the mode of conveying, sucking and opening the packaging bags by using the suction nozzle:

A. the bag taking suction pipe is longer, the suction nozzle openings are more, and the suction nozzle is required to provide larger negative pressure so as to ensure enough suction force, so that the defect of larger energy consumption exists;

B. Because the bag taking suction pipe is longer, the suction nozzle openings are more, and the bags are sucked along the edges of the packaging bags, if the packaging bags are stacked in a poor order or the packaging bags are folded, the suction nozzle can be connected with the lower packaging bags, so that the fault of the error suction of the packaging bags occurs;

C. After the suction nozzle sucks the packaging bag, the suction nozzle moves upwards and then moves horizontally to the operation platform, the running distance is long, and if the packaging bag is not sucked, the bag is easy to fall off;

D. when the bag is taken out, if the sucked packaging bag is adhered to the lower packaging bag, the lower packaging bag can be displaced when the upper packaging bag is taken out, so that the next bag taking out can have a sucking fault;

E. When the bag opening of the packaging bag is provided with a folding angle, the bag opening suction nozzle is easy to break down when the bag opening is opened; moreover, even if the bag opening is bent, the bag opening is difficult to find by operators in the stacking process;

F. After the packaging bag moves onto the platform, the packaging bag naturally falls onto the operation platform, so that the non-parallelism between the bag opening of the packaging bag and the edge of the platform is easily caused, and the bag opening suction nozzle is designed to be parallel to the edge of the platform, so that the packaging bag opening is easily broken when the suction nozzle is used for sucking and opening the packaging bag;

in summary, the existing bag taking and opening device has high requirements on the packaging bag, and otherwise faults in the aspects of bag suction and bag opening are easy to occur.

How to overcome the problems existing in the mechanical bag taking, bag opening and bagging is a big problem existing in the current bag packing industry.

Disclosure of Invention

Aiming at the problems of large energy consumption, unsmooth suction of the packaging bag, easy falling of the packaging bag, easy shift of the position and the like in the process of taking and expanding the packaging bag in the current packaging bag industry, the invention provides the packaging bag taking and expanding equipment and the packaging bag taking and expanding method thereof, which aim to accurately separate or expand adhesion or folding angles between the packaging bags, prevent the phenomenon of falling of the packaging bag in a suction belt, avoid the shift phenomenon of the lower packaging bag in the suction process, enable the rear edges of the bag opening and a platform to be parallel, ensure that the whole bag opening is in a horizontal position when the packaging bag is expanded and fed, reduce the failure rate, reduce the energy consumption and improve the production efficiency.

Aiming at the problems of large energy consumption, unsmooth suction of the packaging bag, easy falling of the packaging bag, easy shift of the position and the like in the process of taking and expanding the packaging bag in the packaging bag industry at present, the invention provides the packaging bag taking and expanding equipment and the packaging bag taking and expanding method for the packaging bag, which aim to accurately separate or expand adhesion between the packaging bags or folding corners of the packaging bag, prevent the phenomenon of falling of the packaging bag in the process of taking the packaging bag, avoid the shift phenomenon of the lower packaging bag in the process of suction, enable the rear edges of the bag opening and the platform to be parallel, ensure that the whole bag opening is in a horizontal position when the packaging bag is expanded and fed, reduce the failure rate, reduce the energy consumption and improve the production efficiency.

The technical scheme of the invention is as follows: the utility model provides a get bag of wrapping bag and prop bag equipment, includes the multilayer wrapping bag that the level set up on conveyer belt, the layer board that sets up on the conveyer belt and the layer board, is used for opening the bagging apparatus, the hopper of unloading of opening the wrapping bag sack, its characterized in that: get bag and prop bag equipment including getting bagging apparatus, prop bagging apparatus and sack fixing device, get bagging apparatus and include the platform, be provided with the drive belt terminal of left and right directions on the horizontal plane of platform below, get bagging apparatus rear and be provided with the product conveyer belt with conveyer belt parallel arrangement, the product conveyer belt starting point top is provided with hopper and sack fixing device down, gets bagging apparatus and includes in proper order according to the action sequence: the bag taking mechanism, the bag pressing mechanism, the bag clamping and pushing mechanism, the bag dividing transverse bar and the pressure bar mechanism; the bag opening device comprises a bag opening mechanism and a bag opening rotating mechanism; the bag mouth fixing device comprises a bag mouth clamping plate mechanism, a bag mouth tensioning mechanism and a bag mouth baffle mechanism, wherein the bag tail of the multi-layer bag on the conveying belt faces to one side behind the equipment, the side face of the end position of the conveying belt is positioned on one side behind the lower surface of the platform, the bag taking device is in a right-angle shape on the plane along the front-back direction and the length direction of the conveying belt, the bag clamping push-pull mechanism is arranged on the platform and comprises a bag clamping chain mechanism arranged at the rear end, a slideway plate for guiding the bag clamp of the chain mechanism to move to the side face of the lower layer conveying belt, a high-low slot hole for guiding the chain mechanism to move is arranged on the slideway plate, the bag pressing mechanism is arranged on the outer side of the side face of the conveying belt, a bag dividing transverse bar and a bag taking mechanism are arranged at the rear position behind the lower surface of the platform, the bag pressing mechanism and a bag opening mechanism of the bag supporting device are respectively arranged on an intermediate support frame above the rear end of the platform, a bag supporting rotating mechanism is arranged on the horizontal direction of the upper layer support frame above the intermediate support frame through a horizontal rotating shaft, the lower hopper is arranged above the lower hopper, the lower hopper extends into the lower hopper, the lower hopper is respectively arranged on the front-back side of the lower hopper and the lower hopper in the lower hopper, the lower hopper is respectively provided with a bag mouth tensioning mechanism and a bag mouth opening mechanism and a bag mouth tensioning mechanism or a bag mouth opening mechanism arranged in the lower hopper, the upper hopper mechanism is fixed on the upper side of the upper hopper or the lower hopper mechanism,

The chain mechanism of the bag clamping and pushing mechanism consists of a plurality of unidirectional bending chains, a plurality of round bars are parallelly arranged between connecting nodes of the unidirectional bending chains in a penetrating way, a plurality of push-pull connecting pieces are arranged at the front end of the chain mechanism, a plurality of bag clamps are respectively arranged at the rear end of the chain mechanism through clamping cylinders, a plurality of parallel sliding racks are arranged in the front-back direction above the chain mechanism, a toothed annular belt is arranged in the front-back direction of each sliding rack, the toothed annular belt is meshed on a gear, a sliding rack servo motor is connected on a gear shaft, a follower slide block is fixed on the toothed annular belt and is positioned right above the push-pull connecting pieces, the follower slide block is connected with the push-pull connecting pieces through push-pull connecting columns in the vertical direction, a hanging rod of a bag clamping cylinder extending towards two sides is arranged above the clamping cylinders behind the chain mechanism, the hanging rod and the round bars are respectively arranged in high-low slotted holes of two sides of a vertical slideway plate on the chain mechanism in a penetrating way, and the bag clamps can be bent along with the slideway plate to the side face of a conveyor belt below a platform;

Further, the bag pressing mechanism comprises a lever cylinder, an L-shaped connecting piece is fixed on a lever of the lever cylinder, an inclined lever is superposed on the L-shaped connecting piece, a long side end part of one side of the L-shaped connecting piece, which is close to the lever cylinder, is hinged to one end of the inclined lever, the short side end part of the L-shaped connecting piece is connected with one end of a bag pressing spring, the other end of the bag pressing spring is connected to the middle part of the inclined lever, the other end of the inclined lever is a bag pressing end, and when the bag pressing end is pressed downwards, the bag pressing end is pressed on a packaging bag below a platform to suck the lower layer of the packaging bag;

Further, the bag dividing bar comprises a pair of bag dividing cylinders horizontally fixed on two sides of a lower support below the platform, the bag dividing cylinders are rodless cylinders, the bag dividing bar is connected to opposite side sliding heads of the two rodless cylinders, and the bag dividing bar moves in the front-back direction between the bag tail sucking packaging bag and the lower packaging bag;

Further, the bag taking mechanism comprises bag taking air cylinders, the bag taking air cylinders on the left side and the right side are vertically fixed on vertical supporting frames on the left side and the right side above the rear part of the bag taking device, the rod ends of the bag taking air cylinders on the left side and the right side are connected with bag taking suction pipes in the horizontal direction, the bag taking suction pipes are positioned below the rear end of the platform, a plurality of bag taking suction nozzles are arranged below the bag taking suction pipes, the bag taking suction nozzles are positioned on the inner side of the tail edge of a packaging bag and are parallel to the tail of the packaging bag, and negative pressure air is communicated with the bag taking suction pipes;

Further, the pressure bar mechanism comprises a pressure bar cylinder and a pressure bar connected with the rod end of the pressure bar, and the pressure bar cylinder is vertically arranged on a middle support frame in the horizontal direction above the platform;

Further, the bag opening mechanism comprises a bag opening air cylinder, the bag opening air cylinder is vertically arranged on a middle supporting frame in the horizontal direction of the rear end of the platform, the lower end of the bag opening air cylinder is fixedly provided with a plurality of upper suction nozzles which are fixedly communicated with each other, the upper bag opening suction nozzles and the upper bag opening suction nozzles are arranged above the platform and parallel to the rear edge of the platform, a lower bag opening suction nozzle is arranged below the platform corresponding to the upper bag opening suction nozzles, a plurality of lower suction nozzles are arranged upwards and are fixedly communicated with each other on the lower bag opening suction nozzles through a plurality of holes formed in the platform respectively, the upper suction nozzles and the lower suction nozzles are staggered and are arranged in parallel on a vertical plane close to the rear edge of the platform, negative pressure gas is respectively communicated with the upper bag taking suction nozzles and the lower bag taking suction nozzles, a plurality of holes are formed in the platform on the rear side of the lower bag taking suction nozzles, and a plurality of photoelectric detection sensors of the edges of the bag openings are arranged in the holes;

Further, a bag supporting servo motor is connected to the end part of a horizontal rotating shaft of the bag supporting rotating mechanism, the horizontal rotating shaft is arranged on a horizontal support of an upper-layer supporting frame, bag supporting arms with splayed left and right sides are hinged to the horizontal rotating shaft, a two-way bag supporting cylinder is arranged between the two bag supporting arms and comprises a large stroke and a small stroke, bag supporting palms are arranged at the end parts of the splayed left and right sides of the bag supporting arms, after the horizontal rotating shaft rotates clockwise, the bag supporting palms face a packaging bag opening to support the packaging bag opening, after the horizontal rotating shaft rotates anticlockwise, the bag supporting arms rotate to one side of a rear discharging hopper, and the packaging bag opening is sleeved on the periphery of the discharging opening of the discharging hopper;

Further, the hopper is the three-dimensional trapezium structure of the narrow upside down of upper width, left and right sides direction is long direction, the front and back both sides of hopper down hang and be equipped with the splint of the sack splint mechanism that is parallel with the back of hopper down, be connected with splint clamp cylinder on the splint, splint clamp cylinder is fixed on hopper down, the left and right sides of hopper down is provided with the tensioning cylinder of sack tensioning mechanism respectively, tensioning cylinder lower extreme is provided with right angle shape tensioning pole, the perpendicular pole of right angle shape tensioning pole hugs closely and falls hopper left and right sides, right angle shape tensioning pole below is provided with the guide of taking the slope spout, the distance top-down of the slope spout of both sides guide from hopper left and right sides down is widened by narrow, the right angle shape tensioning pole horizontal pole of connection at the cylinder pole tip can descend along the slope spout, right angle shape tensioning pole supports sack towards left and right sides tensioning, wrapping bag baffle mechanism includes a pair of relative wrapping bag baffle, wrapping rod link rod is connected with crooked link respectively to the wrapping bag baffle left and right ends, a pair of fender crooked link respectively articulates in the position down, keep off crooked link rod connection level, the distance is close to the wrapping bag face height is close to the packing bag face and is close to the sack diameter of the packing bag, when the wrapping bag is close to the face and is close to the opening height is close to the bag.

The bag taking and opening method for the packaging bag is characterized by using the bag taking and opening equipment for the packaging bag, which is characterized in that: the bag taking and opening method of the packaging bag comprises the following steps:

1) The supporting plates with a plurality of packaging bags are stacked and placed by conveying at the end position of a conveying belt below the bag taking device, and the opening of the packaging bags faces the front end of the device;

2) The bag taking suction nozzle descends under the drive of the bag taking cylinder, the bag taking suction nozzle is pressed above the bag tail of the packaging bag, and the suction nozzle sucks the bag tail of the packaging bag by utilizing negative pressure;

3) Lifting the bag taking suction nozzle under the drive of the bag taking cylinder, and pulling up the tail of the uppermost packaging bag sucked on the bag taking suction nozzle;

4) The bag pressing mechanism is driven by the lever cylinder to press down, and drives the inclined lever to press down so as to press the lower packaging bag;

5) The chain mechanism moves along the slotted hole of the slideway plate under the drive of the carriage servo motor to push the chain mechanism and a plurality of bag clamping cylinders arranged at the rear end of the chain mechanism, so that the bag clamping cylinders move to a bag taking suction nozzle below the platform, and then the bag clamping cylinders clamp the sucked tail of the packaging bag;

6) The bag dividing transverse bar is driven by a pair of bag dividing cylinders to move from back to front between the clamped bag tail of the packaging bag and the bag tail of the packaging bag pressed below, so that the sucked packaging bag and the packaging bag pressed below are separated;

7) The chain mechanism is driven by the sliding frame servo motor to return along the slotted hole of the slideway plate, and pulls the tail of the packaging bag to pull the packaging bag to the upper surface of the platform, when the packaging bag is pulled to the upper surface of the platform and exceeds the transverse rod 1/3 of the compression rod mechanism, the compression rod cylinder of the compression rod mechanism descends, the packaging bag is pressed on the platform by the compression rod, the packaging bag is stretched in the process that the chain mechanism clamps the packaging bag to return, when the photoelectric detection sensor at the edge of the bag is leaked, the servo motor is stopped, the bag clamping cylinder is opened, and under the condition that the packaging bag is stretched, the sliding frame servo motor at one side can be independently operated to keep the edge of the bag parallel to the rear edge of the platform, so that the edge of the bag is aligned with the edge of the platform;

8) After photoelectric detection sensors at the edges of two bag openings are leaked, the bag opening air cylinder is downward to drive a plurality of upper bag opening suction nozzles to move downward, after the packaging bag is pressed, the upper bag opening suction nozzles and the lower bag opening suction nozzles start to suck the upper layer and the lower layer of the packaging bag at the same time, and then the bag opening air cylinder and the compression bar air cylinder move upward to reset, and the bag opening is opened;

9) The bag opening rotating mechanism rotates towards the bag opening direction by taking the horizontal rotating shaft as the axis under the driving of the bag opening servo motor, bag opening palms extend into the bag opening of the packaging bag, two bag opening arms expand towards two sides of the bag opening under the driving of the two-way bag opening air cylinders and tightly support the bag opening, and then the bag opening rotating mechanism reversely rotates to a position higher than the horizontal direction under the driving of the bag opening servo motor, so that the bag opening is sleeved into the blanking opening of the blanking hopper;

10 After the bag opening is sleeved on the periphery of the discharging opening of the discharging hopper, clamping plates are arranged on the front side and the rear side of the discharging hopper, the bag openings on the front side and the rear side are clamped under the drive of clamping plate clamping cylinders, the discharging hopper is opened, and the weighed material products are added into the packaging bag;

11 After the clamping plate clamping cylinder is clamped, the discharging hopper is opened, the material is added, the small-stroke cylinder of the bag supporting arm is retracted, the bag supporting arm is retracted for a small stroke, the bag supporting palm is not tightly supported on the packaging bag, then the bag supporting servo motor drives the bag supporting arm to move upwards, the bag supporting palm is higher than the bag opening, then the small-stroke cylinder of the bag supporting arm extends out, the bag supporting arm is stretched to the maximum opening, and then the bag supporting rotating mechanism is driven by the bag supporting servo motor, and the bag supporting arm drives the bag supporting palm to return to the rear position of the bag taking device;

12 After the bag supporting palm is returned to the original position, the tensioning cylinders of the bag opening tensioning mechanisms at the left side and the right side of the discharging opening are downward to push the right-angle tensioning rods to move downwards and towards the two sides so as to support and expand the bag opening;

13 Resetting the clamping plate clamping cylinder, loosening the bag openings at the front side and the rear side of the clamping cylinder, and lowering the packaging bag onto the product conveying belt under the action of gravity;

14 The front baffle and the rear baffle are driven by the baffle air cylinder to be closed, the bag opening of the packaging bag is straightened, then, the bag opening tensioning mechanism is reset, the tensioning air cylinder drives the right-angle tensioning rod to move upwards and inwards, after the right-angle tensioning rod is reset, the product conveying belt is started, and the packaging bag is sent to the next process for labeling and then sealing.

The invention has the positive effects that: the bag tail of the packaging bag faces to the rear of the bag taking device, so that a bag taking mode of the bag tail can be realized, the bag taking suction pipe of the mode is shorter, and the length of the bag taking suction pipe can be reduced by half compared with that of a general bag taking device, so that the length of the bag taking suction pipe can be shortened, the number of suction nozzles can be reduced, the negative pressure of the suction nozzles can be improved, and enough suction force can be ensured; the chain mechanism is provided with the plurality of unidirectional bending chains, so that the chain mechanism can be prevented from being reversely bent when being driven by the carriage servo motor to move, and the movement of the chain mechanism in the slotted hole of the slideway plate is prevented; the two sides of the platform are provided with the slideway plates, and round bars of the chain mechanism are arranged in the lower layer slot holes of the slideway plates in a penetrating way, so that bag clamps of the chain mechanism can run along the slot holes, and the bag clamps are moved to bag taking suction nozzles below the platform; the parallel sliding carriages are arranged in the front-back direction above the chain mechanism, a toothed annular belt is arranged in the front-back direction of each sliding carriage, the toothed annular belt is meshed with a gear, and a sliding carriage servo motor is connected to a gear shaft, so that on one hand, the following sliding blocks can drive the chain mechanism to move, and in addition, the stopping of the sliding carriage servo motor can be controlled according to the detection result of a photoelectric detection sensor at the edge of a bag opening arranged at the rear end of a platform so as to achieve the purpose of adjusting the single-side position of the bag opening, thereby ensuring that the bag opening is parallel to the rear edge of the platform and ensuring the horizontal state of the bag opening when the bag is supported; the hanging rods of the bag clamping cylinders extending to two sides are arranged on the bag clamping cylinders behind the chain mechanism, the hanging rods are arranged in high-layer slotted holes of slideway plates on two sides of the chain mechanism in a penetrating mode, the plurality of bag clamping cylinders are guaranteed to be on a horizontal straight line, middle lower lumps are prevented, and the hanging rods can move along with the lower-layer chain mechanism through the high-layer slotted holes; by arranging the bag pressing mechanism, the lower packaging bag can be pressed by using the inclined cylinder rod of the bag pressing mechanism, so that the bag sucking fault caused by sucking the lower packaging bag together in the bag taking process can be prevented, the lever cylinder can be ensured to run in place each time, and the position detection of the lever cylinder is facilitated; by arranging the bag separating transverse bar, the packaging bag sucked by the bag taking mechanism and the lower packaging bag can be separated, so that the lower packaging bag is ensured not to move, and convenience is brought to subsequent bag taking; by arranging the pressure bar mechanism, when the packing bag is pulled to the upper surface of the platform by the bag clamping and pushing mechanism and exceeds 1/3 of the cross bar of the pressure bar mechanism, the pressure bar mechanism is pressed down to press the packing bag to the bottom plate, and the bag clamping and pushing mechanism continues to pull backwards, so that the packing bag can be stretched, and when the bag opening of the packing bag has a folding angle, the packing bag can be flattened, and the bag opening suction nozzle is ensured not to have faults when the bag opening suction nozzle is opened; the bag opening mechanism is arranged at the upper and lower positions of the bag opening, so that the bag opening of the packaging bag can be opened along the vertical direction by utilizing a plurality of upper bag opening suction nozzles below the upper bag opening suction pipe and a plurality of lower bag opening suction nozzles on the platform lower bag opening suction pipe; the bag opening is tensioned along the left-right direction by utilizing a bidirectional bag opening cylinder, and then the bag opening of the packaging bag is sleeved into the periphery of a discharging hopper outlet arranged behind the bag taking device by utilizing the reverse rotation of the bag opening servo motor; the clamping plate clamping cylinder is arranged, so that the clamping plate can be driven to clamp the bag opening, the packaging bag can be clamped on the discharging hopper, and products can be filled into the bag from the discharging opening of the discharging hopper; through setting up straining device, the right angle shape tensioning pole of favourable and straining device can be when packing splint loosen the sack, and along slope spout expansion of controlling both sides, the cylinder pole of tensioning cylinder simultaneously rotates along with it, descends in step with the wrapping bag, with the wrapping bag sack tensioning to left and right directions, is favorable to the encapsulation of sack, and the wrapping bag baffle can prevent that the wrapping bag from empting and the sack warp, guarantees that the wrapping bag is under standing the state, gets into next process and encapsulates. The invention can accurately separate the adhesion and the folding angle between the packaging bags, prevent the bag falling phenomenon in the suction bag, avoid the displacement phenomenon of the lower packaging bag in the suction process, and align the bag mouth while leveling the folded packaging bag, ensure that the whole bag mouth is in a horizontal position when the packaging bag is unfolded for feeding, reduce the failure rate, reduce the energy consumption and improve the production efficiency.

Drawings

Fig. 1 is a schematic top view of a bag taking and supporting device of a packaging bag.

Fig. 2 is a schematic side view of the bag taking device.

Fig. 3 is a schematic diagram of a bag opening device connected at the rear end of the bag taking device.

Fig. 4 is a schematic view of the rear end structure of the bag taking device.

Fig. 5 is a schematic top view of the bag-taking device.

Fig. 6 is an enlarged side view of the chain mechanism.

Fig. 7 is an enlarged top view of the chain mechanism.

FIG. 8 is a schematic diagram of the principle structure of the bag clamping cylinder and the bag clamp.

Fig. 9 is a schematic side view of the carriage.

Fig. 10 is a schematic side view of the bag pressing mechanism when pressed.

FIG. 11 is a schematic side view of the bag pressing mechanism when opened.

Fig. 12 is a schematic diagram of the front structure of the bag taking, pressing and separating mechanism.

Fig. 13 is a schematic side view of the bag taking, pressing and separating mechanism.

Fig. 14 is a schematic side view of a pocket fastening device.

FIG. 15 is a schematic view of the back side structure of the bag port fixture.

Fig. 16 is an enlarged exploded view of the guide fixing member A1 of fig. 15.

Fig. 17 is an electrical control schematic of the present invention.

Fig. 18 is a listing of key electrical components in the present invention.

Description of the reference numerals: the conveyor belt 11, the pallet 13, the packing bag 14, the bag mouth 14a, the bag tail 14b, the frame 30, the lower support 30a, the carriage 31, the origin switch 31a, the end switch 31b, the carriage servo motor 32, the slider 33, the push-pull link 34, the push-pull link 35, the chain mechanism 36, the chain 36a, the round bar 36b, the bag clamping cylinder 37, the bag clamping 37a, the hanger 38, the slide plate 39, the horizontal slot 39a, the arc slide plate 39b, the arc slot 39c, the slide fixing cross bar 39d, the carriage support 40, the middle support 41, the upper support 42, the bag taking cylinder 43, the bag taking nozzle 43a, the bag taking nozzle 43b, the bag opening cylinder 44, the upper bag opening nozzle 44a, the upper bag opening nozzle 44b, the compression bar cylinder 45, the compression bar 45a, the lower bag opening nozzle 46b, the bag opening cylinder 47, the bag opening cross bar 47a, the lever cylinder 48, the inclined lever 48a the bag pressing spring 48b, the L-shaped connecting piece 48c, the support link 48d, the lever 48e, the strut 48f, the photodetection sensor 49 of the bag opening edge, the platform 50, the bag opening arm 51, the bag opening palm 52, the bag opening servo motor 53, the bearing block 54, the speed reducer 54a, the horizontal rotation shaft 55, the hinge cross bar 56, the bidirectional bag opening cylinder 56a, the gear 57, the toothed endless belt 58, the spindle 60, the opening and closing slide piece 61, the slide pin guide groove 62, the hopper 70, the bag opening clamping plate mechanism 71, the clamping plate clamping cylinder 71a, the clamping plate rotating piece 71b, the clamping plate 71c, the tensioning cylinder 72, the right-angle tensioning rod 72a, the guide piece 72b, the guide piece fixing piece 72c, the tensioning rod connecting piece 72d, the inclined chute 72e, the baffle cylinder 73, the baffle 73a, the curved connecting rod 73b, the conveying belt 74, the bag backing plate 75, the discharging frame 76, the bag taking device 100, the bag opening device 200, and the bag opening fixing device 300.

Detailed Description

In the following description, the direction of advance of the chain mechanism is defined as the rear end or rear of the apparatus, the starting point side of the chain mechanism is defined as the front of the apparatus, and the operator stands in the direction of bag taking in line with the direction of advance of the chain mechanism, in which case the left side of the operator is the left side of the apparatus and the right side of the operator is the right side or right side of the apparatus.

The technical scheme of the invention is that the bag taking and supporting equipment for the packaging bag 14 is shown in a schematic top view structure of the bag taking and supporting equipment, a schematic side structure of a bag taking device, a schematic diagram of a bag supporting device connected with the rear end of the bag taking device, a schematic diagram of the rear end of the bag taking device, and a schematic diagram of a top view mechanism of the bag taking device in fig. 4. Get bag and prop bagging apparatus including frame 30, conveyer belt 11 of wrapping bag 14, layer package 14 that sets up layer board 13 on the conveyer belt 11 and the level set up on layer board 13, be used for opening the bagging apparatus 200 of wrapping bag 14 sack 14a, the hopper 70 under the product, get bag and prop bagging apparatus including getting bagging apparatus 100, prop bagging apparatus 200 and sack fixed equipment, get bagging apparatus 100 and include platform 50, be provided with the conveyer belt terminal point of left and right directions in the plane below platform 50, get bagging apparatus 100 rear be provided with conveyer belt 11 parallel arrangement's product conveyer belt 74, be provided with down hopper 70 and sack fixed equipment above the beginning point of product conveyer belt 74, get bagging apparatus 100 and include in proper order according to the action: the bag taking mechanism, the bag pressing mechanism, the bag clamping and pushing mechanism, the bag dividing transverse bar and the pressure bar mechanism; the bag opening device 200 comprises a bag opening mechanism and a bag opening rotating mechanism, wherein bag opening fixing equipment comprises a bag opening clamping plate mechanism 71, a bag opening tensioning mechanism and a bag baffle mechanism, a bag tail 14b of a multi-layer bag 14 on a conveying belt 11 faces to one side behind the equipment, the side face of the final position of the conveying belt 11 is positioned on one side behind the lower surface of a platform 50, the front-back direction of the bag taking device 100 and the length direction of the conveying belt 11 form a right-angle shape on a plane, a bag clamping push-pull mechanism is arranged on the platform 50, the bag clamping push-pull mechanism comprises a chain mechanism 36 of a bag clamp 37a arranged at the rear end, a slideway plate 39 for guiding the chain mechanism 36 a to move to a slideway plate 39 erected at a lower bag taking suction nozzle 43a, a slideway plate 39 arranged in the front-back direction is vertically arranged, a high-low two-layer parallel slotted hole for guiding the movement of the chain mechanism 36 is arranged on the slideway plate 39, the slotted hole comprises the slideway plate 39 and a horizontal slotted hole 39a and an arc 39c arranged on the arc slideway plate 39b, and the slotted hole 39b extends to the bag taking suction nozzle 43a arranged below the rear surface of the platform 50 after turning.

Fig. 6 is an enlarged side view of the chain mechanism, and fig. 7 is an enlarged top view of the chain mechanism. The chain mechanism 36 of the bag clamping and pushing mechanism is composed of a plurality of rows of unidirectional bending chains 36a, a plurality of round bars 36b are parallelly arranged on connecting nodes of the unidirectional bending chains 36a in a penetrating mode, a baffle plate is arranged above the chains 36a and can prevent upward bending, two push-pull connecting pieces 35 are arranged at the front end of the chain mechanism 36, a plurality of bag clamps 37a are respectively arranged at the rear end of the chain mechanism 36 through a plurality of bag clamping cylinders 37, and two parallel sliding frames 31 are supported and arranged in the front-rear direction above the chain mechanism 36 through sliding frame struts 40.

Fig. 8 is a schematic structural diagram of a bag clamping cylinder and a bag clamp, wherein the end of a cylinder rod of the bag clamping cylinder 37 is hinged with an upper bag clamp 37a and a lower bag clamp 37a through a mandrel 60, and a sliding shaft of the upper bag clamp 37a and the lower bag clamp 37a is arranged in a sliding pin guide groove 62 on an opening and closing sliding piece 61 in a sliding manner, and the expansion and contraction of the cylinder rod drives the upper bag clamp 37a and the lower bag clamp to open and close.

Fig. 9 is a schematic side view of the carriage. An origin switch 31a and an end switch 31b are arranged on each carriage, a toothed annular belt 58 is arranged on each carriage 31 in the front-rear direction, the toothed annular belt 58 is meshed with a gear 57, a carriage servo motor 32 is connected on a gear shaft, a follower 33 is fixed below the toothed annular belt 58, the follower 33 is located right above a push-pull connecting sheet 35, push-pull connecting columns are fixed on the two follower 33, the two follower 33 are respectively connected with the two push-pull connecting sheets 35 in an inserted manner through the push-pull connecting columns 34 in the vertical direction, a hanging rod 38 of a bag clamping cylinder 37 extending to two sides is arranged on a bag clamping cylinder 37 behind a chain mechanism 36, the hanging rod 38 and a round rod are respectively penetrated in high-low slots of slide plates 39 at two sides of the chain mechanism 36, a plurality of bag clamps 37a can be bent along with the slot holes of the slide plates to extend to a bag taking suction nozzle 43a below the rear part of a platform 50, and the two carriages 31 in the front-rear direction are respectively a left side carriage and a right side carriage.

In the embodiment, the horizontal slideway plate and the circular arc slideway plate 39b are integrally structured to form the slideway plate 39, two vertically arranged bending plates are respectively arranged on the left side and the right side of the platform 50, a plurality of slideway plate fixing cross bars 39d respectively arranged on the inner side of the frame 30 are fixed, a bag pressing mechanism is arranged on the outer side of the rear side surface of the conveying belt 11, a bag separating transverse bar 47a and a bag taking mechanism are arranged at the rear position of the lower surface of the platform 50, a pressure bar 45a mechanism and a bag opening mechanism of the bag opening device 200 are respectively arranged on an upper layer support frame 42 above the rear end of the platform 50, and a bag opening rotating mechanism is arranged on the upper layer support frame above the upper layer support frame 42 in the horizontal direction through a horizontal rotating shaft.

The lever cylinders 48 with upward cylinder rods are hinged at one ends of the inclined levers 48a, the other ends of the inclined levers 48a are bag pressing ends, supporting rod ends are hinged in the middle of the inclined levers 48a, and when the bag pressing ends are pressed down, the supporting rod ends are pressed on the packaging bags 14 below the platform 50 to suck up the lower layers of the packaging bags 14.

Fig. 10 is a schematic side view of the bag pressing mechanism when pressed. Fig. 11 is a schematic side view of the bag pressing mechanism in its opened state. The bag pressing mechanism comprises a lever cylinder 48 in the prior art, the lever cylinder 48 comprises a lever 48e and a supporting rod 48f, the rod end of the lever cylinder 48 is hinged with the lever 48e, one end of a supporting connecting rod 48d is hinged to the upper end of the supporting rod 48f, the other end of the supporting connecting rod 48d is hinged to the middle position of the lever 48e, an L-shaped connecting sheet 48c is fixed on the lever 48e of the lever cylinder 48, an inclined lever 48a is overlapped on the L-shaped connecting sheet 48c, the long side end part of the L-shaped connecting sheet 48c, which is close to one side of the lever cylinder 48, is hinged to one end of the inclined lever 48a, one end of a bag pressing spring 48b is connected to the short side end part of the L-shaped connecting sheet 48c, the other end of the bag pressing spring 48b is connected to the middle part of the inclined lever 48a, and the other end of the inclined lever 48a is a bag pressing end; when the lever cylinder 48 is pressed down, the L-shaped connecting piece is driven to press down, the L-shaped connecting piece drives the inclined lever 48a to press down, the pressing down is stopped after the front end of the inclined lever 48a is pressed to the packaging bag, and the lever cylinder 48 is stopped after being in place, so that the L-shaped connecting piece 48c pulls the inclined lever 48a to press the bag end to press the packaging bag 14 through the bag pressing spring 48b, the operation of the lever cylinder 48 can be guaranteed to be in place no matter what the thickness of the packaging bag 14 is, an electromagnetic switch outside the cylinder body accurately detects a signal, and the signal is sent to the controller to implement the next action.

The bag dividing bar comprises a pair of bag dividing air cylinders 47 horizontally fixed on two sides of a lower layer bracket 30a below a platform 50, the bag dividing air cylinders 47 are rodless air cylinders, the bag dividing bar 47a is connected to opposite side sliding heads of the two rodless air cylinders, and the bag dividing bar 47a moves in the front-back direction between the bag tail 14b sucking up the packaging bag 14 and the lower layer packaging bag 14.

Fig. 12 is a schematic diagram of the front structure of the bag taking, pressing and separating mechanism. Fig. 13 is a schematic side view of the bag taking, pressing and separating mechanism. The bag separating mechanism comprises a pair of rodless bag separating air cylinders 47 and bag separating bars 47a which are horizontally fixed on the lower layer brackets 30a on two sides below the platform 50, the bag separating bars 47a are connected to the sliding heads on the opposite sides of the two rodless air cylinders 47, and when the bags are separated, the bag separating bars 47a move between the bag tail 14b and the suction bags of the lower layer bags 14.

The bag taking mechanism comprises a left bag taking cylinder 43 and a right bag taking cylinder 43, the bag taking cylinders 43 are vertically fixed on vertical supporting frames on the left side and the right side of a platform behind the bag taking device 100, the rod ends of the left bag taking cylinders 43 and the right bag taking cylinders 43 are connected with bag taking suction pipes 43b in the horizontal direction, the bag taking suction pipes are located below the rear end of the platform 50, a plurality of bag taking suction nozzles 43a are arranged below the bag taking suction pipes 43b, the bag taking suction nozzles 43a are located above the bag tail 14b, the bag taking suction nozzles 43a are located on the inner side of the edge of the bag tail 14b of the packaging bag and are parallel to the edge of the bag tail 14b of the packaging bag, negative pressure air is communicated with the bag taking suction pipes, and the negative pressure air is controlled by electromagnetic valves respectively.

The pressure bar mechanism comprises a pressure bar cylinder 45 and a pressure bar 45a connected with the rod end of the pressure bar cylinder 45, the pressure bar cylinder 45 is vertically arranged on a middle supporting frame 41 above the platform 50 in the horizontal direction, when the bag clamp 37a clamps the packaging table 14 to move to the 1/3 position on the platform, the pressure bar cylinder 45 presses down the packaging bag 14, and under the pulling of the chain mechanism 36, the packaging bag 14 is pulled on the platform 50, and folds, angles and the like of the packaging bag 14 are leveled.

The bag opening mechanism comprises a bag opening air cylinder 44, the bag opening air cylinder 44 is vertically arranged on a middle supporting frame 41 in the horizontal direction above the rear end of a platform 50, an upper bag opening suction nozzle 44a is fixedly connected to the lower end of the bag opening air cylinder 44, a plurality of upper bag opening suction nozzles 44b are fixedly connected to the lower surface of the upper bag opening suction nozzle 44a, a lower bag opening suction nozzle 46a is arranged below the rear end of the platform 50 close to the edge of the platform 50, a plurality of lower bag opening suction nozzles 46b are upwards arranged on the lower bag opening suction nozzle 46a, the plurality of lower bag opening suction nozzles 46b penetrate through a plurality of holes formed in the platform 50 respectively, the lower bag opening suction nozzles 46b are fixedly connected to the lower bag opening suction nozzles 46a in a staggered mode, the plurality of lower bag opening suction nozzles 46b are arranged on a vertical plane close to the inner side of the rear edge of the platform 50 in a parallel mode, negative pressure air is respectively communicated with the upper bag opening suction nozzles 44a plurality of the lower bag opening suction nozzles 46a, the negative pressure air is respectively controlled by an electromagnetic valve, a plurality of holes are respectively arranged at the rear edge of the inner side of the platform 50 close to the rear edge of the platform 50, a plurality of bag opening suction nozzles 49 are respectively arranged at the side edges of the lower bag opening suction nozzles 46b close to the side of the photoelectric detector, and a plurality of bag opening suction nozzles are respectively arranged close to the side edges of the bag opening suction nozzles 46 are arranged close to the side edges of the photoelectric detector.

The bag opening rotating mechanism comprises a horizontal rotating shaft 55, the end part of the horizontal rotating shaft 55 is connected with a bag opening servo motor 53, a bag opening palm 52 which faces the front of the platform 50 is connected with the end part of the horizontal rotating shaft 55, the horizontal rotating shaft 55 is arranged on a horizontal support of the upper layer supporting frame 42, the horizontal rotating shaft 54 is a bearing seat of the horizontal rotating shaft 55, bag opening arms 51 with splayed left and right sides are hinged on the horizontal rotating shaft 55, 56 are hinged cross bars between the two bag opening arms 51, a two-way bag opening cylinder 56a is arranged between the two bag opening arms 51, the two-way bag opening cylinder comprises two strokes, bag opening palms 52 which face the front of the platform 50 are arranged at the end parts of the splayed bag opening arms 51 at the left and right sides, the bag opening servo motor 53 drives the bag opening rotating mechanism to rotate through the speed reducer 54a, the bag opening palms 52 of the bag opening rotating mechanism extend into the bag opening from the rear end of the platform 50 in a clockwise direction, the bag opening 14a bag opening 14 is opened by the left and right side of the two-way bag opening cylinder 56a, and the bag opening palms 52 rotates anticlockwise to the bag opening 14a bag opening 14 arranged at the periphery of the bag opening device which is reversely arranged at the lower opening position and the lower side of the bag opening device is taken down.

Fig. 14 is a schematic side view of a bag port fixture. Fig. 15 is a schematic view of the back structure of the pouch port fixture. The blanking hopper 70 is arranged above the blanking frame 76, a blanking opening of the blanking hopper 70 extends into the blanking frame 76, a pocket clamping plate mechanism 71 and a packing bag baffle mechanism are respectively arranged on the front side and the rear side of the blanking hopper 70 from top to bottom, pocket tensioning mechanisms are arranged on the left side and the right side of the blanking hopper 70, and a plurality of mechanisms of the pocket fixing device 300 are fixed on the blanking frame 76 or the blanking hopper 70.

The lower hopper 70 is in an inverted three-dimensional trapezoid structure with a wide upper part and a narrow lower part, clamping plates 71c of a pocket clamping plate mechanism 71 are hung on the front side and the rear side of the lower hopper 70, the clamping plates 71c are connected with clamping plate clamping air cylinders 71a through clamping plate rotating pieces 71b, the clamping plate clamping air cylinders 71a are obliquely arranged on the front side and the rear side of the lower hopper 70, the clamping plate clamping air cylinders 71a are fixed on a lower material frame 76, the clamping plates 71c are connected with the clamping plate clamping air cylinders 71a through tilting V-shaped clamping plate rotating pieces 71b, two end parts of the V-shaped clamping plate rotating pieces 71b are respectively connected with the clamping plates 71c and the clamping plate clamping air cylinders 71a, and cone parts of the V-shaped clamping plate rotating pieces 71b are hinged on the front surface and the rear surface of the lower hopper 70 through hinging pieces.

Fig. 16 is an enlarged exploded view of the guide fixing member A1 of fig. 15. In this embodiment, the guide member 72b has a cylindrical structure, the outer circumference of the cylinder is provided with an inclined chute 72e, the left and right sides of the lower hopper 70 are oppositely provided with guide members 72b, and the inclined chute 72e is inclined in the same direction.

The left and right sides of the lower hopper 70 are respectively provided with a tensioning cylinder 72 of a bag mouth tensioning mechanism, the tensioning cylinders 72 are vertically arranged on the lower material frame 76 through guide piece fixing pieces 72c, the lower ends of the tensioning cylinders 72 are provided with right-angle tensioning rods 72a through tensioning rod connecting pieces 72d, the vertical rod ends of the right-angle tensioning rods 72a on the left and right sides of the lower hopper are clung to the left and right sides of the lower hopper 70, the horizontal rods of the right-angle tensioning rods 72a are arranged in guide pieces 72b with inclined sliding grooves 72e, the guide pieces 72b are fixed on the lower material frame 76 through guide piece fixing pieces 72c, the inclined sliding grooves 72e of the left and right guide pieces 72b are narrow and wide from top to bottom at a distance from the left side and the right side of the lower hopper, when the tensioning cylinders 72 descend, the horizontal rods of the right-angle tensioning rods 72a are driven to descend along the inclined sliding grooves 72e, the cylinder rods of the tensioning cylinders 72 are simultaneously rotated in the circumferential direction, the vertical rods of the right-angle tensioning rods 72a are sleeved in the bag mouth, the right-angle tensioning rods 72a are horizontally arranged in the guide pieces 72b with the inclined sliding grooves 72b, the vertical rods of the right-angle tensioning rods 72a are driven to descend along the lower ends of the inclined sliding grooves 72e, the horizontal rods of the bag mouth are separated from the left and the left side of the lower hopper bag mouth, the horizontal rods are separated from the left side of the bag mouth bag bags 14a, and the horizontal bags 14a are stretched along the left side of the horizontal rods, and the horizontal rods are separated from the left side of the horizontal rods of the bag bags, and the horizontal bags are stretched along the horizontal rods, and the horizontal rods are separated from the horizontal rods, and the horizontal rods of the horizontal rods, and the horizontal rods are separated from the horizontal rods, and the horizontal rods are separated.

The left and right ends of the packing bag baffle 73a are arranged on a baffle bending connecting rod 73b, the bending part of the baffle bending connecting rod 73b is hinged on a blanking frame 76, a baffle cylinder 73 which is horizontally arranged is connected to the baffle connecting rod, the baffle cylinder 73 is horizontally arranged at the top of the blanking frame 76 along the front and back direction, the baffle cylinder 73 is connected with a baffle 73a through the bending connecting rod 73b, the bending part of the bending connecting rod 73b is hinged on the blanking frame 76, the baffle 73a extends to the lower part of the blanking hopper 70 and is used for righting the packed packing bag 14 pocket mouth, the plate surfaces of the front and back baffles 73a are parallel to the length direction of a product conveying belt 74, the width between the front and back plates is consistent with the diameter of a right-angle-shaped tensioning rod 72a when the packing bag baffle 76a is closed, and the packing bag baffle 76a is lower than the height of the packing bag 14 pocket mouth 14 a.

In the figures, two package baffles 76a are shown in a fully closed state, and an electromagnetic switch is arranged on the air cylinder according to the use state, so that the closed state of the two package baffles 76a is adjusted to the distance of the diameter of the right-angle tension rod, and the toppling of the package 14 and the deformation of the bag mouth are prevented.

The side of the product conveyor 74 is also provided with a bag fence 75.

The photoelectric sensor 49 for detecting the edge of the opening of the packaging bag is connected with the controller through a photoelectric amplifier.

Fig. 17 is an electrical control schematic of the present invention. The carriage original switch 1, the carriage original switch 2 and the carriage original switches 2 described in the figures are respectively switches on the carriage on the left side and the carriage on the right side, and the photoelectric detection sensor 1 on the edge of the pocket opening and the photoelectric detection sensor 2 on the edge of the pocket opening are respectively photoelectric detection sensors on the edge of the pocket opening on the left side and the right side.

In order to enable the bag taking and opening device to automatically operate, the invention adopts a Siemens S7-200 type PLC controller to control the operation of the device. Fig. 18 is a listing of key electrical components in the present invention. The tail end of the conveyor belt 11 is provided with a proximity switch to detect whether the packaging bag supporting plate runs in place or not; a photoelectric sensor 49 for detecting the edge of the pocket mouth is arranged at the rear end of the platform 50 so as to detect whether the pocket mouth 14a leaks out; a bag taking sensor is arranged beside the bag taking suction nozzle and is used for detecting whether the tail 14b of the packaging bag is sucked up or not; a bag opening sensor is arranged beside the bag opening suction nozzle and is used for detecting whether the bag opening 14a is opened or not; the front end and the rear end of the carriage are provided with an origin switch 31a and a destination switch 31b, and a proximity switch is specifically adopted; magnetic induction switches are arranged on the cylinders; an upper limit switch and a lower limit switch of the bag taking cylinder 43; upper and lower limit switches of the lever cylinder 48; an upper limit switch and a lower limit switch of the compression bar cylinder 45; the cylinder of the clamping bag 48 opens and closes the limit switch; front and rear limit switches of the bag separating cylinder 47, and upper and lower limit switches of the bag opening cylinder 44; the clamp plate clamping cylinder 71a opens and closes the limit switch; the two-way bag opening cylinder 56a opens and closes a limit switch; the two-way bag opening cylinder 56a is provided with a limit switch for opening and closing a small-stroke cylinder; the opening and closing limit switch of the two-way bag opening cylinder 56a large-stroke cylinder; the baffle cylinder 73 opens and closes a limit switch; all the switch signals are connected to the input end of the PLC, and the PLC controls the operation and stop of the conveyor belt through the output end of the PLC according to the signal state of the on-site access; the electromagnetic valve of the air cylinder is controlled to be opened and closed through the output end so as to control the action of the air cylinder.

In this embodiment, the negative pressure air uses an induced draft fan, and controls the action of the suction nozzle and the electromagnetic valve of each cylinder by controlling the suction pipe and the electromagnetic valve of each bag opening through the cylinder, so that the compressed air in the workshop can be used for driving in the production workshop.

The bag taking and opening method of the bag taking and opening equipment of the packaging bag 14 is implemented by the equipment, and the bag taking and opening steps are specifically as follows:

1) A pallet 13 on which a plurality of bags 14 are stacked by being conveyed at the end position of a conveyor belt 11 below the bag taking device 100, and the bags 14 are opened toward the front end of the apparatus;

2) The bag taking suction nozzle 43a descends under the drive of the bag taking cylinder 43, the bag taking suction nozzle 43a is pressed above the bag tail 14b of the packaging bag 14, and the suction nozzle sucks the bag tail 14b of the packaging bag 14 by negative pressure;

3) The bag taking suction nozzle 43a is driven by the bag taking cylinder 43 to ascend, and the uppermost bag tail 14b of the packaging bag sucked on the bag taking suction nozzle 43a is pulled up;

4) The bag pressing mechanism is driven by the lever cylinder 48 to press down, and drives the inclined lever 48a to press down so as to press the lower packaging bag 14;

5) The chain mechanism is driven by the carriage servo motor 32 to move along the horizontal slotted holes 39a and the arc slotted holes 39c of the horizontal runner plate and the arc-shaped slideway plate 39b, so as to push the chain mechanism 36 and a plurality of bag clamping cylinders 37 arranged at the rear end of the chain mechanism to move to a bag taking suction nozzle 43a below the platform 50, and then the bag clamping cylinders 37 clamp the sucked packaging bag tail 14b;

6) The bag dividing bar 47a moves from the back to the front between the clamped bag tail 14b and the lower laminated bag tail 14b under the driving of the pair of bag dividing cylinders 47, and separates the sucked bag from the lower laminated bag;

7) The chain mechanism 36 is driven by the carriage servo motor 32 to return along the slots of the horizontal slideway plate and the arc slideway plate 39b, and pulls the bag tail 14b to pull the bag 14 onto the platform 50, when the bag 14 is pulled onto the platform 50 and exceeds 1/3 of the cross bar 45a of the compression bar mechanism, the compression bar cylinder 45 of the compression bar mechanism descends, the compression bar 45a presses the bag 14 onto the platform 50, the chain mechanism 36 pulls the bag 14 in the process of returning the bag 14, when the photoelectric detection sensor 49 at the edge of the bag leaks out, the servo motor stops and opens the bag clamping cylinder 37, and under the condition that the bag 14 is pulled, the edge of the bag opening 14a is kept parallel to the rear side of the platform 50, so that the edge of the bag opening 14a is aligned with the edge of the platform 50;

The left side rack servo motor 32 corresponds to the photoelectric detection sensor 49 at the edge of the left side pocket, the right side rack servo motor 32 corresponds to the photoelectric detection sensor 49 at the edge of the right side pocket 14a, namely, the photoelectric detection sensor 49 at the edge of the left side pocket 14a leaks, the left side rack servo motor 32 is stopped, and the left side two pocket clamping cylinders 37 are opened; the photoelectric detection sensor 49 at the edge of the bag opening 14a on the right leaks, the servo motor 32 of the right side bracket is stopped, and two bag clamping cylinders 37 on the right side are opened, so that the edge of the bag opening 14a is kept parallel to the rear edge of the platform and aligned with the bag opening;

8) When photoelectric detection sensors 49 at the edges of the two bag openings leak, the bag opening air cylinder 44 moves downwards to drive the plurality of upper bag opening suction nozzles 44b to move downwards, after the packaging bag 14 is pressed, the plurality of upper bag opening suction nozzles 44b and the plurality of lower bag opening suction nozzles 46b start to suck the upper layer and the lower layer of the packaging bag 14 at the same time, and then the bag opening air cylinder 44 and the compression bar air cylinder 45 move upwards to reset to open the bag opening 14a;

9) The bag opening rotating mechanism is driven by a bag opening servo motor 53, rotates around a horizontal rotating shaft 55 as an axis in the direction of a bag opening, bag opening palm 52 stretches into a bag opening 14a of a packaging bag, two bag opening arms 51 are driven by a two-way bag opening air cylinder 56a to expand towards two sides of the bag opening 14a and tightly support the bag opening 14a, and then the bag opening rotating mechanism reversely rotates to a position higher than the horizontal direction under the driving of the bag opening servo motor 53, so that the bag opening 14a is sleeved into a blanking opening of a blanking hopper 70;

10 After the bag opening 14a is sleeved around the blanking opening of the blanking hopper 70, clamping plates 71c are arranged on the front side and the rear side of the blanking hopper 70, the bag opening 14a on the front side and the rear side is clamped under the driving of clamping plate clamping cylinders 71a, the blanking hopper 70 is opened, and the weighed material products are added into the packaging bag 14;

11 After clamping the clamping plate clamping cylinder 71a, opening the discharging hopper 70 to add materials, and simultaneously retracting the small-stroke cylinder of the bag supporting arm 51 to enable the bag supporting arm 51 to retract by a small stroke, so that the bag supporting palm 52 is not tightly supported on the packaging bag 14, then, driving the bag supporting arm 51 to move upwards by the bag supporting servo motor 53 to enable the bag supporting palm 52 to be higher than the bag opening 14a, then, extending the small-stroke cylinder of the bag supporting arm 51, enabling the bag supporting arm 51 to be stretched to the maximum opening, and then, driving the bag supporting palm 52 to return to the rear position of the bag taking device 100 by the bag supporting rotating mechanism under the driving of the bag supporting servo motor;

12 After the bag supporting palm 52 is returned to the original position, the tensioning cylinders 72 of the tensioning mechanisms of the bag openings 14a at the left side and the right side of the feed opening push the right-angle tensioning rods 72a to move downwards and to the two sides so as to support and expand the bag openings;

13 The clamping plate clamping cylinder 71a is reset, the clamping cylinder 71a loosens the bag openings 14a on the front side and the rear side, and the packaging bag 14 descends to the product conveying belt 74 under the action of gravity;

14 The front and rear baffles are closed under the driving of the baffle cylinder 73 to straighten the bag mouth 14a of the packaging bag, then the bag mouth tensioning mechanism is reset, the tensioning cylinder 72 drives the right angle tensioning rod 72a upwards and inwards to enable the right angle tensioning rod 72a to reset, the product conveyor belt is started, and the packaging bag 14 is sent to the next process for labeling and then sealing.

The invention has the positive effects that: the bag taking mode of the bag tail 14b can be realized by directing the bag tail 14b towards the rear of the bag taking device 100, and the bag taking suction pipe 43b in the mode is shorter and can be reduced by half compared with the general bag taking device 100, so that the length of the bag taking suction pipe 43b can be shortened, the number of suction nozzles is reduced, the negative pressure of the suction nozzles is improved, and sufficient suction force is ensured; by providing the chain mechanism 36 with a plurality of rows of unidirectional bending chains 36a, the chain mechanism 36 can be prevented from being reversely bent when being driven by the carriage servo motor 32 to move, thereby preventing the chain mechanism 36 from moving in the slot of the slideway plate 39; by arranging the slide plates 39 on the two sides of the platform and penetrating the round rods 36b of the chain mechanism 36 into the lower-layer slots of the slide plates 39, the chain mechanism can run along the slots to move the bag clamp 37a to the bag taking suction nozzle 43a below the platform 50; the plurality of parallel carriages 31 are arranged in the front-rear direction above the chain mechanism 36, a toothed annular belt 58 is arranged in the front-rear direction of each carriage 31, the toothed annular belt 58 is meshed with a gear 57, and a carriage servo motor 32 is connected to a gear shaft, so that the follower 33 can drive the chain mechanism 36 to move on one hand, in addition, the carriage servo motor 32 can be controlled to stop according to the detection result of a photoelectric detection sensor 49 at the edge of a pocket 14a arranged at the rear end of the platform 50, so that the purpose of adjusting the single-side position of the pocket 14a is achieved, the pocket 14a is ensured to be parallel to the rear edge of the platform 50, and the horizontal state of the pocket 14a during pocket supporting is ensured; the hanging rods 38 of the bag clamping air cylinders 37 extending to two sides are arranged on the bag clamping air cylinders 37 behind the chain mechanism 36, so that the hanging rods 38 and round bars are respectively arranged in the high-low slotted holes of the slideway plates 39 at two sides of the chain mechanism 36 in a penetrating way, the plurality of bag clamping air cylinders 37 are ensured to be on a horizontal straight line, middle lower lump is prevented, and the hanging rods 38 can move along with the lower chain mechanism 36 through the high-low slotted holes; by arranging the bag pressing mechanism, the lower packaging bag 14 can be pressed by utilizing the inclined lever 48a of the bag pressing mechanism, so that the bag sucking fault caused by sucking the lower packaging bag 14 together in the bag taking process can be prevented, the lever cylinder 48 can be ensured to run in place each time, and the position detection of the lever cylinder 48 is facilitated; by arranging the bag separating bar 47a, the bag 14 sucked by the bag taking mechanism and the lower bag 14 can be separated, so that the lower bag 14 is ensured not to move, and convenience is brought to subsequent bag taking; by arranging the pressing rod mechanism, when the packing bag 14 is pulled onto the platform 50 by the bag clamping and pushing mechanism and exceeds the transverse rod 47a 1/3 of the pressing rod mechanism, the pressing rod mechanism is pressed down to press the packing bag 14 onto the packing bag 14 of the platform 50, and the bag clamping and pushing mechanism continues to pull backwards, so that the packing bag 14 is stretched, and the bag mouth 14a of the packing bag 14 can be leveled, so that the bag opening suction nozzle is ensured not to have faults when the bag opening suction nozzle is opened; by providing the bag opening mechanism at the upper and lower positions of the bag opening 14a, the bag opening 14a can be opened in the vertical direction by using the plurality of upper bag opening suction nozzles 44b below the upper bag opening suction pipe 44a and the plurality of lower bag opening suction nozzles 46b on the platform lower bag opening suction pipe 46 a; by arranging the bag opening device 200, the bag opening servo motor 53 drives the bag opening palm 52 to be inserted into the bag opening 14a, then the bag opening 14a is tensioned along the left-right direction by the bidirectional bag opening cylinder 56a, and then the bag opening 14a of the packaging bag is sleeved into the periphery of the outlet of the discharging hopper 70 arranged behind the bag taking device 100 by the reverse rotation of the bag opening servo motor 53; the clamping plate clamping cylinder 71a is arranged, so that the clamping plate 71c can be driven to clamp the bag opening 14a, the packaging bag 14 is clamped on the discharging hopper 70, and products are filled into the bag from the discharging opening of the discharging hopper 70; by arranging the tensioning mechanism, when the right-angle tensioning rod 72a of the tensioning mechanism loosens the bag opening 14a along the inclined sliding groove 72e, the right and left sides of the bag opening are expanded, and meanwhile, the cylinder rod of the tensioning cylinder 72 rotates along with the bag opening, descends synchronously with the packaging bag 14, and tightens the bag opening 14a to the left and right directions, is beneficial to packaging of the bag opening 14a, and can prevent the packaging bag 14 from toppling over and deforming of the bag opening 14a by the baffle of the packaging bag 14, so that the packaging bag is ensured to enter the next procedure for packaging under a standing state.

The invention can accurately separate adhesion and folding angle or fold between the packaging bags, prevent hanging bag phenomenon in suction bag, avoid displacement phenomenon of lower packaging bag in suction process, align the bag mouth while leveling the folded packaging bag, ensure that the whole bag mouth is in horizontal position when the packaging bag is spread for feeding, reduce failure rate, reduce energy consumption and improve production efficiency.

Claims

1. The utility model provides a get bag of wrapping bag and prop bag equipment, includes the multilayer wrapping bag that the level set up on conveyer belt, the layer board that sets up on the conveyer belt and the layer board, is used for opening the bagging apparatus, the hopper of unloading of opening the wrapping bag sack, its characterized in that: get bag and prop bag equipment including getting bagging apparatus, prop bagging apparatus and sack fixing device, get bagging apparatus and include the platform, be provided with the drive belt terminal of left and right directions on the horizontal plane of platform below, get bagging apparatus rear and be provided with the product conveyer belt with conveyer belt parallel arrangement, the product conveyer belt starting point top is provided with hopper and sack fixing device down, gets bagging apparatus and includes in proper order according to the action sequence: the bag taking mechanism, the bag pressing mechanism, the bag clamping and pushing mechanism, the bag dividing transverse bar and the pressure bar mechanism; the bag opening device comprises a bag opening mechanism and a bag opening rotating mechanism; the bag mouth fixing device comprises a bag mouth clamping plate mechanism, a bag mouth tensioning mechanism and a bag mouth baffle mechanism, wherein the bag tail of the multi-layer bag on the conveying belt faces to one side behind the equipment, the side face of the end position of the conveying belt is positioned on one side behind the lower surface of the platform, the bag taking device is in a right-angle shape on the plane along the front-back direction and the length direction of the conveying belt, the bag clamping push-pull mechanism is arranged on the platform and comprises a bag clamping chain mechanism arranged at the rear end, a slideway plate for guiding the bag clamp of the chain mechanism to move to the side face of the lower layer conveying belt, a high-low slot hole for guiding the chain mechanism to move is arranged on the slideway plate, the bag pressing mechanism is arranged on the outer side of the side face of the conveying belt, a bag dividing transverse bar and a bag taking mechanism are arranged at the rear position behind the lower surface of the platform, the bag pressing mechanism and a bag opening mechanism of the bag supporting device are respectively arranged on an intermediate support frame above the rear end of the platform, a bag supporting rotating mechanism is arranged on the horizontal direction of the upper layer support frame above the intermediate support frame through a horizontal rotating shaft, the lower hopper is arranged above the lower hopper, the lower hopper extends into the lower hopper, the lower hopper is respectively arranged on the front-back side of the lower hopper and the lower hopper in the lower hopper, the lower hopper is respectively provided with a bag mouth tensioning mechanism and the bag mouth opening mechanism and the left hopper mechanism or the upper hopper mechanism and the lower hopper opening tensioning mechanism, the bag opening mechanism are respectively fixed on the two sides of the upper hopper opening mechanism,

The chain mechanism of the bag clamping and pushing mechanism consists of a plurality of unidirectional bending chains, a plurality of round bars are parallelly arranged between connecting nodes of the unidirectional bending chains in a penetrating way, a plurality of push-pull connecting pieces are arranged at the front end of the chain mechanism, a plurality of bag clamps are respectively arranged at the rear end of the chain mechanism through clamping cylinders, a plurality of parallel sliding racks are arranged in the front-back direction above the chain mechanism, a toothed annular belt is arranged in the front-back direction of each sliding rack, the toothed annular belt is meshed on a gear, a sliding rack servo motor is connected on a gear shaft, a follower slide block is fixed on the toothed annular belt and is positioned right above the push-pull connecting pieces, the follower slide block is connected with the push-pull connecting pieces through push-pull connecting columns in the vertical direction, a hanging rod of a bag clamping cylinder extending towards two sides is arranged above the clamping cylinders behind the chain mechanism, the hanging rod and the round bars are respectively arranged in high-low slots and the upright slide plates at two sides of the chain mechanism in a penetrating way, the bag clamps can be bent along with the slide plates to the side faces of a conveying belt below a platform,

The compression bar mechanism comprises a compression bar cylinder and a compression bar connected with the rod end of the cylinder, and the compression bar cylinder is vertically arranged on a middle supporting frame in the horizontal direction above the platform.

2. The bag taking and opening device for a packaging bag according to claim 1, wherein: the bag pressing mechanism comprises a lever cylinder, an L-shaped connecting piece is fixed on a lever of the lever cylinder, an inclined lever is superposed on the L-shaped connecting piece, a long side end part of one side of the L-shaped connecting piece, which is close to the lever cylinder, is hinged to one end of the inclined lever, one end of a bag pressing spring is connected to the short side end part of the L-shaped connecting piece, the other end of the bag pressing spring is connected to the middle part of the inclined lever, the other end of the inclined lever is a bag pressing end, and when the bag pressing end is pressed downwards, the bag pressing end is pressed on a packaging bag below a platform to suck the lower layer of the packaging bag.

3. The bag taking and opening device for a packaging bag according to claim 1, wherein: the bag dividing transverse bar comprises a pair of bag dividing air cylinders horizontally fixed on two sides of a lower support below the platform, the bag dividing air cylinders are rodless air cylinders, the bag dividing transverse bar is connected to opposite side sliding heads of the two rodless air cylinders, and the bag dividing transverse bar moves in the front-back direction between the bag tail sucking packaging bag and the lower packaging bag.

4. The bag taking and opening device for a packaging bag according to claim 1, wherein: the bag taking mechanism comprises bag taking air cylinders, the bag taking air cylinders on the left side and the right side are vertically fixed on vertical supporting frames on the left side and the right side above the rear of the bag taking device, the rod ends of the bag taking air cylinders on the left side and the right side are connected with bag taking suction pipes in the horizontal direction, the bag taking suction pipes are located below the rear end of the platform, a plurality of bag taking suction nozzles are arranged below the bag taking suction pipes, the bag taking suction nozzles are located on the inner side of the tail edge of a packaging bag and are parallel to the tail of the packaging bag, and negative pressure air is communicated with the bag taking suction pipes.

5. The bag taking and opening device for a packaging bag according to claim 1, wherein: the bag opening mechanism comprises a bag opening cylinder, the bag opening cylinder is vertically arranged on a middle supporting frame in the horizontal direction of the rear end of the platform, a bag opening suction pipe is fixed at the lower end of the bag opening cylinder, a plurality of upper suction nozzles are fixedly connected below the bag opening suction pipe at the upper side, the bag opening suction pipe at the upper side and the bag opening suction nozzle at the upper side are arranged above the platform and parallel to the rear edge of the platform, a bag opening suction pipe at the lower side is arranged below the platform corresponding to the bag opening suction pipe, a plurality of lower suction nozzles are arranged in the upward direction of the bag opening suction pipe at the lower side, the plurality of lower suction nozzles respectively penetrate through a plurality of holes formed in the platform and are fixedly connected to the bag opening suction pipe at the lower side in a staggered and parallel manner, negative pressure gas is respectively communicated on the bag opening suction pipe at the upper side and the bag opening suction pipe at the lower side, a plurality of holes are formed in the platform at the rear side of the lower side of the suction nozzles, and photoelectric detection sensors at the edges of the bag opening are arranged in the holes.

6. The bag taking and opening device for a packaging bag according to claim 1, wherein: the horizontal rotating shaft end part of the bag supporting rotating mechanism is connected with a bag supporting servo motor, the horizontal rotating shaft is arranged on a horizontal support of an upper layer supporting frame, bag supporting arms with splayed structures on the left side and the right side are hinged to the horizontal rotating shaft, a two-way bag supporting cylinder is arranged between the two bag supporting arms and comprises a large stroke and a small stroke, bag supporting palms are arranged at the ends of the splayed bag supporting arms on the left side and the right side, after the horizontal rotating shaft rotates clockwise, the bag supporting palms face to a packaging bag opening to support the packaging bag opening, after the horizontal rotating shaft rotates anticlockwise, the bag supporting arms rotate to one side of a lower hopper at the rear, and the packaging bag opening is sleeved on the periphery of the lower hopper.

7. The bag taking and opening device for a packaging bag according to claim 1, wherein: the discharging hopper is of an inverted three-dimensional trapezoid structure with a wide upper part and a narrow lower part, the left and right directions are long directions, clamping plates of a pocket clamping plate mechanism parallel to the front and rear surfaces of the discharging hopper are hung on the front and rear sides of the discharging hopper, clamping plate clamping cylinders are connected to the clamping plates and fixed on the discharging hopper, tensioning cylinders of the pocket tensioning mechanism are respectively arranged on the left and right sides of the discharging hopper, right-angle tensioning rods are arranged at the lower ends of the tensioning cylinders, vertical rods of the right-angle tensioning rods are clung to the left and right sides of the discharging hopper, guide pieces with inclined sliding grooves are arranged below the right-angle tensioning rods, the distance between the inclined sliding grooves of the guide pieces on the two sides and the left and right sides of the discharging hopper is widened from top to bottom, when the tensioning cylinder descends, the right-angle tensioning rod horizontal rod connected to the end part of the cylinder rod descends along the inclined sliding groove, the right-angle tensioning rod supports the bag mouth to be tensioned towards the left side and the right side, the packaging bag baffle mechanism comprises a pair of opposite packaging bag baffles, the left end and the right end of each packaging bag baffle are respectively connected with a bending connecting rod, the bending connecting rods of the pair of baffles are respectively hinged to the left and the right positions of the blanking frame, the bending connecting rods of the baffles are connected with baffle cylinders which are horizontally arranged, the front baffle plate surface and the rear baffle plate surface are parallel to the finished product conveying belt, the packaging bag baffles are close to the bag mouth when being closed, the distance between the front baffle plate and the rear baffle plate is consistent with the diameter of the tensioning rod, and the distance between the front baffle plate and the rear baffle plate is lower than the height of the bag mouth of the packaging bag.

8. A bag taking and opening method of a packaging bag, using the bag taking and opening device of the packaging bag according to any one of claims 1 to 7, characterized in that: the bag taking and opening method of the packaging bag comprises the following steps: