CN111439431A

CN111439431A - Bag taking and opening equipment for packaging bags and bag taking and opening method thereof

Info

Publication number: CN111439431A
Application number: CN202010447257.7A
Authority: CN
Inventors: 吕彦民
Original assignee: Individual
Current assignee: Zhejiang Carrying Packaging Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-07-24
Anticipated expiration: 2040-05-25
Also published as: CN111439431B

Abstract

A bag taking and opening device and a bag taking and opening method for packaging bags belong to the field of packaging equipment, and 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 transmission belt terminal point in the vertical direction is arranged below the platform, a product transmission belt is arranged behind the bag taking device, and a feed opening and a bag opening fixing device are arranged above the product transmission belt; the bag taking device comprises a bag clamping push-pull mechanism, a bag pressing mechanism, a bag separating cross bar, a bag taking device mechanism and a pressure rod mechanism; the bag opening device comprises a bag opening mechanism and a bag opening rotating mechanism; the bag opening fixing device comprises a bag opening clamping plate mechanism, a bag opening tensioning mechanism and a packaging bag baffle mechanism, and can accurately separate stacked packaging bags, prevent bag falling in the bag taking process, avoid the displacement phenomenon of lower-layer packaging bags, flatten folds, folding angles and the like of the packaging bags, enable the bag opening to be parallel to the rear end of the base plate while flattening the packaging bags, reduce the failure rate, reduce the energy consumption and improve the production efficiency.

Description

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

Technical Field

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

Background

In the production of traditional industrial products, powder and granular products are generally packaged by woven bags, the bagging work of the products is almost finished manually originally, and the bagged products are mostly powder products and have the characteristics of high pollution, dust sloshing and the like, so that negative effects can be brought to the health of operators, the labor intensity is high, and the mobility of the operators in the aspect is very high.

In recent years, along with the development of industrial production scale in China, the cost of human resources is gradually increased, and some equipment for replacing manually operated packaging bags appears, in the conventional packaging bag operation, a common bag taking device adopts a transverse bag taking mode (the long edge of the packaging bag is transverse), a bag taking suction nozzle sucks the bag from the upper layer of the stacked packaging bags along the long edge of the packaging bag, the packaging bag is lifted to a certain height above an operation platform after being sucked, then the packaging bag is transversely moved to the middle position on the platform, then the suction nozzle is closed, the packaging bag naturally falls onto the platform by using the self weight of the packaging bag, and finally the bag opening is opened by using the suction nozzle, and the mode for carrying, sucking and opening the bag opening of the packaging bag has the following defects:

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

B. because the bag taking suction pipe is longer, the suction nozzle has more openings, and the bags are sucked along the edge of the packaging bag, if the packaging bags are stacked untidy or the packaging bags have folded corners, the suction nozzle can be connected with the lower layer of packaging bags, so that the fault of the suction error of the packaging bags occurs;

C. after the suction nozzle sucks the packaging bag, the suction nozzle moves upwards firstly and then moves horizontally to the operating platform, the running distance is long, and the bag falling fault is easy to occur if the packaging bag is not sucked;

D. when the bag is taken, if the absorbed packaging bag is adhered to the packaging bag below, the packaging bag below can be displaced when the packaging bag above is taken, so that the absorption fault can occur when the bag is taken next time;

E. when the mouth of the packaging bag is provided with a break angle, the bag opening suction nozzle is easy to break down when the mouth of the packaging bag is opened; moreover, even if the bag mouth is bent, an operator can hardly find the bending phenomenon in the stacking process;

F. after the packaging bag moves onto the platform, the packaging bag naturally falls onto the operating platform, so that the bag opening of the packaging bag is not parallel to the edge of the platform easily, and the bag opening suction nozzle is designed to be parallel to the edge of the platform, so that when the bag opening of the packaging bag is sucked and opened by the suction nozzle, a fault easily occurs;

in summary, the conventional bag taking and supporting device has high requirements on the packaging bag, or faults in the aspects of bag suction and bag supporting easily occur.

How to overcome the problems in the mechanical bag taking, bag opening and bag filling is a major subject in the bag filling industry at present.

Disclosure of Invention

The invention provides a bag taking and opening device of a packaging bag and a bag taking and opening method thereof, aiming at solving the problems of high energy consumption, unsmooth bag taking and opening process, easy falling of the packaging bag, easy displacement of the position and the like in the prior packaging bag industry.

The technical scheme of the invention is as follows: the utility model provides a bag of getting of wrapping bag props a bag equipment, includes that the layer board that sets up on conveyer belt, the conveyer belt and the multilayer wrapping bag that the layer board upper level set up, be used for strutting the bag device, lower hopper of propping of wrapping bag sack, get the bag and prop a bag equipment including getting the bagging apparatus, propping bagging apparatus and sack fixing device, get the bagging apparatus and include the platform, be provided with the drive belt terminal point of left right direction on the horizontal plane of platform below, get the product conveyer belt that bagging apparatus rear was provided with conveyer belt parallel arrangement, product conveyer belt starting point top is provided with down hopper and sack fixing device, gets the bagging apparatus and includes according to the action order in proper order: the bag taking mechanism, the bag pressing mechanism, the bag clamping and pushing mechanism, the bag separating cross bar and the pressure lever mechanism are arranged on the bag conveying mechanism; the bag opening device comprises a bag opening mechanism and a bag opening rotating mechanism; the bag opening fixing device comprises a bag opening clamping plate mechanism, a bag opening tensioning mechanism and a packaging bag baffle mechanism, the tail of a plurality of layers of packaging bags on the conveyor belt faces one side of the rear part of the equipment, the side surface of the terminal position of the conveyor belt is positioned on one side of the rear part below the platform, the front and rear direction of the bag taking device and the length direction of the conveyor belt form a right-angled shape on the plane, the bag clamping and pushing mechanism is arranged on the platform, the bag clamping and pushing mechanism comprises a chain mechanism of a bag clamp arranged at the rear end and a slide way plate for guiding the bag clamp of the chain mechanism to move to the side surface of the lower-layer conveyor belt, a high-low two-layer slotted hole for guiding the movement of the chain mechanism is arranged on the slide way plate, the bag pressing mechanism is arranged on the outer side surface of the conveyor belt, the bag dividing cross bar and the bag taking mechanism are arranged at the rear position of the lower surface of the platform, the bag, the blanking hopper is arranged above the blanking frame, the blanking port extends into the blanking frame, the front side and the rear side of the blanking hopper in the blanking frame are respectively provided with a bag opening clamping plate mechanism and a packaging bag baffle mechanism from top to bottom, the left side and the right side of the blanking hopper in the blanking frame are provided with bag opening tensioning mechanisms, and the mechanisms of the bag opening fixing device are fixed on the blanking frame or the blanking hopper;

further, the bag clamping and pushing mechanism is characterized in that a chain mechanism of the bag clamping and pushing mechanism is composed of a plurality of unidirectional bending chains, a plurality of round bars are arranged on connecting nodes of the unidirectional bending chains in a penetrating mode in parallel, a plurality of push-pull connecting pieces are arranged at the front end of the chain mechanism, a plurality of bag clamps are arranged at the rear end of the chain mechanism through clamping cylinders respectively, a plurality of parallel sliding frames 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 frame and meshed with a gear, a sliding frame servo motor is connected to a gear shaft, a follower sliding block is fixed on the toothed annular belt and located right above the push-pull connecting pieces, the follower sliding block is connected with the push-pull connecting pieces through push-pull connecting columns in the vertical direction, a hanging rod of the bag clamping cylinder extending towards two sides is arranged above the clamping cylinders behind the, In the low slotted hole, a plurality of bag clamps can be bent along with the sliding track plate and extend to the side surface of the conveyor belt below the platform;

further, the bag pressing mechanism comprises a lever cylinder, an L-shaped connecting sheet is fixed on a lever of the lever cylinder, an inclined lever is superposed on a L-shaped connecting sheet, the end part of the long edge of the L-shaped connecting sheet close to one side of the lever cylinder is hinged to one end of the inclined lever, the end part of the short edge of the L-shaped connecting sheet 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 presses downwards, the bag pressing end presses on a packaging bag which is;

further, the bag separating mechanism comprises a pair of rodless cylinders and a bag separating cross bar, the rodless cylinders are horizontally fixed on the lower layer supports on two sides below the platform, the bag separating cross bar is connected to a side sliding head of each rodless cylinder, and the bag separating cross bar moves between a bag tail suction packaging bag and a lower layer packaging bag during bag separation;

further, the bag taking mechanism comprises a bag taking cylinder, the bag taking cylinders on the left side and the right side are vertically fixed on vertical support 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 cylinders on the left side and the right side are connected with a bag taking suction pipe in the horizontal direction, the bag taking suction pipe is positioned below the rear end of the platform, a plurality of bag taking suction nozzles are arranged below the bag taking suction pipe, the bag taking suction nozzles are positioned on the inner side of the tail edge of the packaging bag and are parallel to the tail edge, and negative pressure air is communicated with the bag taking suction pipe;

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

further, the bag opening mechanism comprises a bag opening cylinder, the bag opening cylinder is vertically arranged on a middle support frame in the horizontal direction at the rear end of the platform, an upper bag opening suction pipe is fixed at the lower end of the bag opening cylinder, a plurality of upper suction nozzles are fixedly communicated and connected below the upper bag opening suction pipe, the upper bag opening suction pipe and the upper bag opening suction nozzles are arranged above the platform and parallel to the rear side of the platform, a lower bag opening suction pipe is arranged below the platform corresponding to the upper bag opening suction pipe, a plurality of lower suction nozzles are arranged above the lower bag opening suction pipe, the plurality of lower suction nozzles are respectively fixedly communicated and connected on the lower bag opening suction pipe through a plurality of holes formed in the platform, the plurality of upper suction nozzles and the plurality of lower suction nozzles are staggered and arranged on a vertical plane close to the rear edge of the platform in parallel, negative pressure gas is respectively communicated on the upper bag taking suction pipe and the lower bag taking suction pipe, a plurality of holes are formed in the platform at, a plurality of photoelectric detection sensors at the edges of the bag openings are arranged in the holes;

further, a bag opening servo motor is connected to the end portion of a horizontal rotating shaft of the bag opening rotating mechanism, the horizontal rotating shaft is arranged on a horizontal support of an upper layer support frame, bag opening arms of which the left side and the right side are of splayed structures are hinged to the horizontal rotating shaft, a bidirectional bag opening cylinder is arranged between the two bag opening arms and comprises a large stroke and a small stroke, bag opening palms are arranged at the end portions of the splayed bag opening arms on the left side and the right side, the bag opening palms face towards a bag opening after the horizontal rotating shaft rotates clockwise and support the bag opening, the bag opening arms rotate to one side of a discharging hopper behind after the horizontal rotating shaft rotates anticlockwise, and the bag opening is sleeved on the periphery of the discharging opening of the discharging;

further, the blanking hopper is of an inverted three-dimensional trapezoidal structure with a wide upper part and a narrow lower part, the left direction and the right direction are long directions, the front side and the back side of the blanking hopper are respectively provided with a clamping plate of a bag mouth clamping mechanism which is parallel to the front side and the back side of the blanking hopper in a hanging mode, the clamping plate is connected with a clamping plate clamping cylinder which is fixed on the blanking hopper, the left side and the right side of the blanking hopper are respectively provided with a tensioning cylinder of the bag mouth tensioning mechanism, the lower end of the tensioning cylinder is provided with a right-angle-shaped tensioning rod, the vertical rod of the right-angle-shaped tensioning rod is tightly attached to the left side and the right side of the blanking hopper, a guide part with an inclined sliding chute is arranged below the right-angle-shaped tensioning rod, the distance from the inclined sliding chutes of the two side guide parts to the left side and the right, wrapping bag baffle mechanism includes a pair of relative wrapping bag baffle, and both ends are connected with crooked connecting rod respectively about the wrapping bag baffle, and crooked connecting rod flexion of a pair of baffle articulates respectively about the work or material rest on the position, is connected with the baffle cylinder that the level set up on the crooked connecting rod of baffle, and baffle face is parallel with the finished product conveyer belt around, is close to the sack when the wrapping bag baffle is closed, and two board intervals are unanimous with the tensioning rod diameter around, and the wrapping bag baffle is less than the wrapping bag sack height.

A bag taking and opening method for a packaging bag utilizes the bag taking and opening equipment for the packaging bag, and comprises the following steps:

1) the conveying belt end point position below the bag taking device conveys a supporting plate on which a plurality of packaging bags are stacked, and the openings of the packaging bags face to the front end of the equipment;

2) the bag taking suction nozzle is driven by the bag taking cylinder to descend, 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 using negative pressure;

3) the bag taking suction nozzle is driven by the bag taking air cylinder to ascend, and the uppermost packaging bag tail sucked on the bag taking suction nozzle is pulled up;

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

5) the chain mechanism moves along the slotted hole of the slideway plate under the driving of the sliding frame 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 packaging bag tail;

6) the bag separating cross bar is driven by a pair of bag separating cylinders to move from back to front between the clamped bag tail and the lower pressed bag tail so as to separate the sucked packaging bag from the lower pressed packaging bag;

7) the chain mechanism is driven by a sliding frame servo motor, the chain mechanism returns along a slotted hole of a sliding track plate, the tail of a packaging bag is pulled to pull the packaging bag onto a platform, after the packaging bag is pulled onto the platform, the packaging bag exceeds a cross bar 1/3 of a pressure bar mechanism, a pressure bar cylinder of the pressure bar mechanism descends, the packaging bag is pressed on the platform by a pressure bar, the packaging bag is stretched in the process that the packaging bag is clamped by the chain mechanism to return, when a photoelectric detection sensor at the edge of the bag opening leaks, the servo motor stops and opens a bag clamping cylinder, and under the condition that the packaging bag is stretched, the sliding frame servo motor on one side can be independently operated to enable the edge of the bag opening to be parallel to the back of the platform, so that the bag;

8) after the photoelectric detection sensors at the edges of the two bag openings leak, the bag opening cylinder faces downwards to drive the plurality of upper bag opening suction nozzles to move downwards, after the packaging bags are pressed, the plurality of upper bag opening suction nozzles and the plurality of lower bag opening suction nozzles start to tightly suck the upper layer and the lower layer of the packaging bags at the same time, and then the bag opening cylinder and the pressure rod cylinder move upwards to reset to open the bag openings;

9) the bag opening rotating mechanism is driven by a bag opening servo motor, the bag opening rotating mechanism rotates towards the direction of a bag opening by taking a horizontal rotating shaft as an axis, a bag opening palm extends into the bag opening of a packaging bag, two bag opening arms expand towards two sides of the bag opening under the driving of a bidirectional bag opening cylinder to 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 to enable the bag opening to be sleeved into a discharging opening of a discharging hopper;

10) after the bag opening is sleeved into the periphery of the feed opening of the feeding hopper, clamping plates arranged on the front side and the rear side of the feeding hopper are driven by a clamping plate clamping cylinder to clamp the bag openings on the front side and the rear side, the feeding hopper is opened, and the weighed material product is added into a packaging bag;

11) after the clamping plate clamping cylinder clamps the bag, the bag opening arm small-stroke cylinder retracts when the discharging hopper is opened to add materials, so that the bag opening arm retracts by a small stroke, a bag opening palm is not used for tightly opening the packaging bag, then, a bag opening servo motor drives the bag opening arm to move upwards, the bag opening palm is higher than a bag opening, then, the bag opening arm small-stroke cylinder extends out, the bag opening arm is opened to the maximum opening degree, and then, a bag opening rotating mechanism is driven by the bag opening servo motor to drive the bag opening palm to return to the rear position of the bag taking device;

12) after the materials are filled in the packaging bag and the bag opening supporting palm returns to the original position, the tensioning cylinders of the bag opening tensioning mechanisms on the left side and the right side of the feed opening move downwards to push the right-angle tensioning rods to move downwards and towards two sides, so that the bag opening is supported and spread;

13) the clamping cylinder is reset, the clamping cylinder loosens the bag openings at the front side and the rear side, and the packaging bags descend onto the product conveyor belt 74 under the action of gravity;

14) the front baffle and the rear baffle are closed under the drive of the baffle cylinder, the packaging bag opening is straightened, then the bag opening tensioning mechanism is reset, the tensioning cylinder upwards drives the right-angle tensioning rod to upwards move inwards, the right-angle tensioning rod is reset, the product conveyor belt is started, and the packaging bag is conveyed to the next process to be sealed after being labeled.

The invention has the following positive effects: the bag tail of the packaging bag faces the rear part of the bag taking device, so that a bag tail taking mode can be realized, the bag taking suction pipe is shorter, and the length of the bag taking suction pipe can be reduced by half compared with that of a common 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 the sufficient suction force can be ensured; the chain mechanism is provided with a plurality of unidirectional bending chains, so that the chain mechanism can be prevented from being bent reversely when driven by the sliding frame servo motor to move, and the chain mechanism is prevented from moving in a slotted hole of the sliding track plate; the two sides of the platform are provided with the slide way plates, and the round rods of the chain mechanism penetrate through the lower layer slotted holes of the slide way plates, so that the bag clamp of the chain mechanism can run along the slotted holes, and the bag clamp can be moved to the bag taking suction nozzle under the platform; the plurality of parallel sliding frames are arranged above the chain mechanism in the front-back direction, the toothed annular belt is arranged on each sliding frame in the front-back direction, the toothed annular belt is meshed with the gear, and the sliding frame servo motor is connected to the gear shaft, so that the traveling slide block can drive the chain mechanism to move on one hand, and in addition, the sliding frame servo motor can be controlled to stop according to the detection result of the photoelectric detection sensor arranged at the edge of the bag opening arranged at the rear end of the platform, so that the purpose of adjusting the position of one side of the bag opening is achieved, the bag opening is ensured to be parallel to the rear edge of the platform, and the horizontal state of the; the suspender of the bag clamping cylinder extending towards two sides is arranged on the bag clamping cylinder behind the chain mechanism, the suspender penetrates through the high-layer slotted holes of the sliding track plates at two sides of the chain mechanism, a plurality of bag clamping cylinders are ensured to be on a horizontal straight line, the middle part of the bag clamping cylinders is prevented from lumping, and the suspender 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 tightly by utilizing the inclined cylinder rod of the bag pressing mechanism, so that the bag sucking failure caused by sucking up the lower packaging bag in the bag taking process can be prevented, the lever cylinder can be ensured to operate in place every time, and the position detection of the lever cylinder is facilitated; by arranging the bag separating cross bar, the packaging bags sucked up by the bag taking mechanism can be separated from the packaging bags below, so that the lower packaging bags are prevented from moving, and convenience is brought to subsequent bag taking; by arranging the pressure lever mechanism, after the packaging bag is pulled to the upper surface of the platform by the bag clamping and pushing mechanism and exceeds the cross bar 1/3 of the pressure lever mechanism, the pressure lever mechanism presses downwards to press the packaging bag onto the bottom plate, and the bag clamping and pushing mechanism is continuously pulled backwards to stretch the packaging bag, so that the packaging bag can be flattened when the opening of the packaging bag is provided with a folded angle, and the bag opening suction nozzle is ensured not to have faults when opening the bag; the bag opening mechanism is arranged at the upper position and the lower position 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 bag opening suction pipe below the platform; the bag opening device is arranged, a bag opening palm is favorably inserted into the bag opening under the driving of the bag opening servo motor, then the bag opening is tensioned along the left and right directions by the bidirectional bag opening cylinder, and then the bag opening is sleeved into the periphery of the outlet of the discharging hopper arranged behind the bag taking device by utilizing the reverse rotation of the bag opening servo motor; the clamping cylinder is arranged to drive the clamping plate to clamp the bag opening, so that the packaging bag can be clamped on the discharging hopper, and a product can be loaded into the bag from the discharging opening of the discharging hopper; through the arrangement of the tensioning mechanism, the right-angle tensioning rod of the tensioning mechanism can expand towards the left side and the right side along the inclined sliding groove when the package clamping plate loosens the bag opening, meanwhile, the air cylinder rod of the tensioning air cylinder rotates along with the bag opening to synchronously descend with the bag opening, the bag opening of the bag is tensioned to the left side and the right side, the packaging of the bag opening is facilitated, the packaging bag baffle can prevent the bag from being toppled over and deformed, and the packaging bag is guaranteed to enter the next process for packaging in a standing state. The invention can accurately separate the adhesion and the folded angle between the packaging bags, prevent the bag falling phenomenon in the suction bag, avoid the displacement phenomenon of the lower layer packaging bag in the suction process, align the bag opening while flattening the folded packaging bag, ensure that the whole bag opening is in a horizontal position when the packaging bag is opened 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 opening device for packaging bags.

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

Fig. 3 is a schematic diagram of the rear end of the bag and the bag supporting device connected with the rear end.

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

Fig. 5 is a schematic view of a top view mechanism of the bag extractor.

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 structural diagram of the bag clamping cylinder and the bag clamp.

Fig. 9 is a side view of the carriage.

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

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

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

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

Fig. 14 is a schematic side structure view of the bag mouth fixing device.

Fig. 15 is a back structure schematic view of the bag mouth fixing device.

Fig. 16 is an enlarged exploded view of guide mount a1 portion of fig. 15.

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

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

The reference numbers indicate that the conveyor belt 11, the supporting plate 13, the packaging bags 14, the bag mouth 14a, the bag tail 14b, the rack 30, the lower layer bracket 30a, the carriage 31, the origin switch 31a, the destination switch 31b, the carriage servo motor 32, the slider 33, the push-pull connecting column 34, the push-pull connecting sheet 35, the chain mechanism 36, the chain 36a, the round bar 36b, the bag clamping cylinder 37, the bag clamp 37a, the suspension rod 38, the chute plate 39, the horizontal slotted hole 39a, the arc-shaped chute plate 39b, the arc-shaped slotted hole 39c, the chute fixing cross bar 39d, the carriage support column 40, the middle support frame 41, the tensioning support frame 42, the bag taking cylinder 43, the bag taking suction nozzle 43a, the bag taking suction pipe 43b, the bag opening cylinder 44, the upper bag opening suction pipe 44a, the upper bag opening suction nozzle 44b, the pressing rod cylinder 45, the pressing rod 45a, the lower bag opening suction pipe 46a, the lower bag opening suction nozzle 46b, the bag separating cylinder 47a, the bag separating cross rod 47a, the lever cylinder 48, the inclined lever 48a, the pressure type spring 48b, the L c, the lever bracket 48c, the lever bracket 70 c, the rotary rod 72b, the rotary rod 70 c, the inclined rotary rod 72c, the lever bracket 70 c, the inclined rotary rod 72b, the inclined rotary rod 72, the lever bracket 70 c, the inclined rotary rod 72b, the inclined rotary rod 72.

Detailed Description

In the following description, the forward direction of the chain mechanism is the rear end or rear side of the apparatus, the starting point side of the chain mechanism is the front side of the apparatus, and the operator stands in the direction corresponding to the forward bag-taking direction of the chain mechanism.

The technical scheme of the invention is a bag taking and supporting device for a packaging bag 14, wherein fig. 1 is a schematic view of a top view structure of the bag taking and supporting device for the packaging bag, fig. 2 is a schematic view of a side structure of a bag taking device, fig. 3 is a schematic view of a rear end of the bag taking device and a bag supporting device connected with the rear end, fig. 4 is a schematic view of the rear end structure of the bag taking device, and fig. 5 is a schematic view of a top view mechanism of the bag taking device. Get bag and prop a bag equipment and include that frame 30, wrapping bag 14's conveyer belt 11, conveyer belt 11 go up the layer board 13 that sets up and layer board 13 go up the multilayer wrapping bag 14 that the level set up, be used for strutting bag opening device 200, product hopper 70 down of 14 a's of wrapping bag, get bag and prop a bag equipment and include getting bag device 100, prop bag device 200 and sack fixed equipment, get bag device 100 and include platform 50, be provided with the drive belt terminal point of left right direction in the plane of platform 50 below, get bag device 100 rear and be provided with conveyer belt 11 parallel arrangement's product conveyer belt 74, product conveyer belt 74 starting point top is provided with down hopper 70 and sack fixed equipment, gets bag device 100 and includes according to the action order in proper order: the bag taking mechanism, the bag pressing mechanism, the bag clamping and pushing mechanism, the bag separating cross bar and the pressure lever mechanism are arranged on the bag conveying mechanism; the bag opening fixing device comprises a bag opening clamping plate mechanism 71, a bag opening tensioning mechanism and a packaging bag baffle mechanism, the bag tail 14b of a plurality of layers of packaging bags 14 on the conveyor belt 11 faces one side of the rear of the device, the side face of the terminal position of the conveyor belt 11 is positioned on one side of the rear below the platform 50, the front and rear directions of the bag taking device 100 and the length direction of the conveyor belt 11 form a right angle shape on a plane, the bag clamping push-pull mechanism is arranged on the platform 50 and comprises a chain mechanism 36 of a bag clamp 37a arranged at the rear end, a chute plate 39 which is vertically arranged at the position where the bag clamp 37a of the chain mechanism 36 moves to a lower bag taking suction nozzle 43a, the chute plate 39 which is vertically arranged is composed of a chute plate 39 arranged in the front and rear direction and an arc chute plate 39b connected behind the chute plate, and high and low layers of parallel slotted holes which guide the chain mechanism 36 to move are arranged, the slotted holes comprise a horizontal slotted hole 39a and an arc slotted hole 39c which are arranged on the slideway plate 39 and the arc slideway plate 39b, and the arc slideway plate 39b extends to the bag-taking suction nozzle 43a below the rear part of the platform 50 after turning.

Fig. 6 is an enlarged side view of the chain mechanism, and fig. 7 is an enlarged plan view of the chain mechanism. The chain mechanism 36 of the bag clamping push-pull mechanism is composed of a plurality of rows of one-way bent chains 36a, a plurality of round bars 36b penetrate through the connecting nodes of the plurality of one-way bent chains 36a in parallel, a blocking piece 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 through a plurality of bag clamping air cylinders 37, and two parallel sliding frames 31 are supported by a sliding frame support 40 in the front-back direction above the chain mechanism 36.

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

Fig. 9 is a side view schematically showing the structure of the carriage. An original point switch 31a and a terminal point switch 31b are arranged on each sliding frame, a dentate annular belt 58 is arranged in the front-back direction of each sliding frame 31, the dentate annular belt 58 is meshed on a gear 57, a sliding frame servo motor 32 is connected on a gear shaft, a following slide block 33 is fixed below the dentate annular belt 58, the following slide block 33 is positioned right above a push-pull connecting sheet 35, push-pull connecting columns are fixed on the two following slide blocks 33, the two following slide blocks 33 are respectively inserted and connected with the two push-pull connecting sheets 35 through the push-pull connecting column 34 in the vertical direction, a suspender 38 of a bag clamping cylinder 37 extending towards two sides is arranged on the bag clamping cylinder 37 behind the chain mechanism 36, the suspender 38 and a round bar are respectively penetrated in high and low slotted holes of the sliding track plates 39 at two sides of the chain mechanism 36, a plurality of bag clamps 37a can extend to a bag taking suction nozzle 43a below the rear part of the, the two front-rear direction carriages 31 are a left-side carriage and a right-side carriage, respectively.

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

And the lever air cylinders 48 with upward cylinder rods are provided, the cylinder rod ends of the lever air cylinders 48 are hinged at one end of the inclined lever 48a, the other end of the inclined lever 48a is a bag pressing end, the middle of the inclined lever 48a is hinged with a support rod end, and when the bag pressing end is pressed downwards, the bag pressing end is pressed on the packaging bag 14 which is arranged below the platform 50 and sucks up the lower layer of the packaging bag 14.

FIG. 10 is a side view of a bag pressing mechanism when the bag pressing mechanism is pressed, FIG. 11 is a side view of the bag pressing mechanism when the bag pressing mechanism is opened, the bag pressing mechanism includes a lever cylinder 48 of the prior art, the lever cylinder 48 includes a lever 48e and a rod 48f, the rod 48f is hinged at the upper end thereof to one end of a support link 48d, the other end of the support link 48d is hinged at the middle position of the lever 48e, a L type connecting piece 48c is fixed to the lever 48e of the lever cylinder 48, an inclined lever 48a is superimposed on a L type connecting piece 48c, a L type connecting piece 48c is hinged at one end of the inclined lever 48a near the lever cylinder 48 side, the short side end of the L type connecting piece 48c is connected to one end of a bag pressing spring 48b, the other end of the bag pressing spring 48b is connected to the middle portion of the inclined lever 48a, the other end of the inclined lever 48a is a bag pressing end, the lever cylinder 48 presses the connecting piece 56 type connecting piece, the inclined lever 48a presses the inclined lever 48a, the lever 48b presses the inclined lever 48a, the bag pressing mechanism stops pressing mechanism when the lever 48a presses the bag, and the lever 48b presses the bag pressing mechanism, the bag pressing mechanism stops pressing mechanism, and the bag pressing mechanism operates the bag pressing mechanism, the bag pressing mechanism detects that the bag pressing mechanism presses the bag pressing mechanism.

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

Fig. 12 is a front structural schematic diagram of a 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 cylinders 47 and a bag separating cross bar 47a which are horizontally fixed on the lower layer supports 30a on two sides below the platform 50, the bag separating cross bar 47a is connected to the opposite side sliding heads of the two rodless cylinders 47, and when bags are separated, the bag separating cross bar 47a moves between a bag tail 14b and a sucked packaging bag and a lower layer packaging bag 14.

Get a bag mechanism and include that two are got a bag cylinder 43 about, get a bag cylinder 43 vertical fixation on getting the perpendicular support frame of bag device 100 rear platform left and right sides, the left and right sides is got a bag cylinder 43 jar pole end and is connected with the bag straw 43b of getting of horizontal direction, it is located platform 50 rear end below to get a bag straw, it is provided with a plurality of suction nozzles 43a of getting a bag to get a bag straw 43b below, it is located bag tail 14b top to get a bag suction nozzle 43a, a plurality of suction nozzles 43a of getting a bag are located bag tail 14b edge inboard, and are parallel with 14 bag tail 14b edges of wrapping bag, it has negative pressure air to get to communicate on the bag straw, negative pressure air utilizes solenoid valve control respectively.

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

The bag opening mechanism comprises a bag opening cylinder 44, the bag opening cylinder 44 is vertically arranged on a middle support frame 41 which is arranged above the rear end of the platform 50 in the horizontal direction, an upper bag opening suction pipe 44a is fixed at the lower end of the bag opening cylinder 44, a plurality of upper bag opening suction nozzles 44b are fixedly communicated and connected below the upper bag opening suction pipe 44a, a lower bag opening suction pipe 46a is arranged below the rear end of the platform 50, a plurality of lower bag opening suction nozzles 46b are arranged above the lower bag opening suction pipe 46a, the plurality of lower bag opening suction nozzles 46b are respectively arranged on a plurality of holes arranged on the platform 50 in a penetrating manner, the lower bag opening suction nozzle 46b is fixedly communicated and connected on the lower bag opening suction pipe 46a, the plurality of lower bag opening suction nozzles 46b and the plurality of upper bag opening suction nozzles 44b are staggered and arranged on a vertical plane close to the inner side of the rear edge of the platform 50 in parallel manner, the upper bag opening suction pipe 44a and the lower bag taking suction pipe 46a are respectively communicated with negative pressure air, negative pressure air is controlled by electromagnetic valves respectively, a row of holes are formed in the inner side of the rear edge of the platform 50, a plurality of bag opening suction nozzles 46b are arranged in the holes respectively, in addition, another row of holes are also formed in the rear edge of the bag opening suction nozzles 46b arranged below the platform 50, photoelectric detection sensors 49 at a plurality of bag opening edges are arranged in the holes, and the photoelectric detection sensors 49 at the bag opening edges are transversely close to the edge side of the rear end of the platform 50 compared with the bag opening suction nozzles 46b arranged below the platform 50.

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, 54a is a speed reducer connected with the bag opening servo motor 53, the horizontal rotating shaft 55 is arranged on a horizontal support of an upper layer support frame 42, 54 is a bearing seat of the horizontal rotating shaft 55, bag opening arms 51 with splayed structures at the left side and the right side are hinged on the horizontal rotating shaft 55, 56 is a hinged cross bar hinged between the two bag opening arms 51, a bidirectional bag opening cylinder 56a is arranged between the two bag opening arms 51, the bidirectional bag opening cylinder comprises a large stroke and a small stroke, bag opening palms 52 facing to the front of the platform 50 are arranged at the end parts of the splayed bag opening arms 51 at the left side and the right side, the end part of the horizontal rotating shaft 55 is connected with the bag opening servo motor 53, the bag opening servo motor 53 drives the bag opening rotating mechanism to rotate through 54a, the bag opening palms 52 of the bag opening rotating mechanism extend into the bag opening port from the rear end of, the bag opening palm 52 opens the bag opening 14a of the packaging bag 14, and rotates counterclockwise in the opposite direction to the periphery of the discharge opening of the discharge hopper provided behind the bag taking device 100 and having a downward opening.

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

The lower hopper 70 is of an inverted three-dimensional trapezoidal structure with a wide upper part and a narrow lower part, clamping plates 71c of a bag mouth clamping 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 cylinders 71a through clamping plate rotating pieces 71b, the clamping plate clamping cylinders 71a are obliquely arranged on the front side and the rear side of the lower hopper 70, the clamping plate clamping cylinders 71a are fixed on a lower material rack 76, the clamping plates 71c are connected with the clamping plate clamping cylinders 71a through dumping V-shaped clamping plate rotating pieces 71b, the 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 cylinders 71a, and the cone parts of the V-shaped clamping plate rotating pieces 71b are hinged on the.

Fig. 16 is an enlarged exploded view of guide mount a1 portion of fig. 15. In this embodiment, the guide 72b has a cylindrical structure, and an inclined slide groove 72e is formed on the outer circumference of the cylinder, and the guide 72b is formed on the left and right sides of the lower hopper 70 so as to face each other, and the inclined slide grooves 72e are inclined in the same direction.

The left side and the right side of the lower hopper 70 are respectively provided with a tensioning cylinder 72 of a bag mouth tensioning mechanism, the tensioning cylinder 72 is vertically arranged on the lower material rack 76 through a guide fixing piece 72c, the lower end of the tensioning cylinder 72 is provided with a right-angle tensioning rod 72a through a tensioning rod connecting piece 72d, the vertical rod end parts of the right-angle tensioning rods 72a on the left side and the right side of the lower hopper are tightly attached to the left side and the right side of the lower hopper 70, the horizontal rods of the right-angle tensioning rods 72a are arranged in a guide piece 72b with an inclined sliding chute 72e, the guide piece 72b is fixed on the lower material rack 76 through the guide fixing piece 72c, the distance between the inclined sliding chutes 72e of the left guide piece 72b and the inclined sliding chute 72e of the right guide piece 72b from top to bottom to top is narrow and wide, when the tensioning cylinder 72 descends, the horizontal rods of the, the vertical rod of the right-angle tensioning rod 72a can be sleeved into the packaging bag opening when the packaging bag is sleeved, the lower end of the vertical rod of the right-angle tensioning rod 72a of the packaging bag opening 14a is driven by the air cylinder to move downwards along with the falling of the packaging bag and is opened towards the left side and the right side, the packaging bag opening 14a is supported into a strip shape along the left and right directions, the packaging bag 14 can fall to the upper side of the product conveyor belt 74 along with the loosening of the clamping plate clamping air cylinder 72, and the tensioning rod 72a can also be separated from the left inner side and the.

The left end and the right end of a packaging bag baffle 73a are arranged on a baffle bending connecting rod 73b, the bending part of the baffle bending connecting rod 73b is hinged to a blanking frame 76, a horizontally arranged baffle air cylinder 73 is connected to the baffle connecting rod, the baffle air cylinder 73 is horizontally arranged at the top of the blanking frame 76 along the front-back direction, the baffle air 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 to the blanking frame 76, the baffle 73a extends to the lower part of the blanking hopper 70 and is used for righting the opening of a packaging bag 14 filled with materials, the plate surfaces of the front baffle 73a and the rear baffle 73a are parallel to the length direction of a product conveyor belt 74, the width between the front plate and the rear plate is consistent with the diameter of a right-angle-shaped tension rod 72 a.

In the figure, two packaging bag baffles 76a are shown in a completely closed state, and an electromagnetic switch can be arranged on an air cylinder according to the use state, so that the closed state of the two packaging bag baffles 76a is adjusted to the distance of the diameter of the right-angle tension rod, and the pouring of the packaging bag 14 and the deformation of the opening of the packaging bag are prevented.

A bag backup plate 75 is also provided on the side of the product conveyor 74.

The detection photoelectric sensor 49 at 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. Numbers 1 and 2 in the carriage default switch 1 and the carriage default switch 2 described in the drawing and the carriage default switch 2 respectively indicate switches on carriages on the left and right sides, and similarly, the photoelectric detection sensor 1 on the bag opening edge and the photoelectric detection sensor 2 on the bag opening edge also indicate photoelectric detection sensors on the bag opening edges on the left and right sides respectively.

In order to enable the bag taking and supporting equipment to automatically operate, a Siemens S7-200 type P L C controller is adopted to control operation of the equipment, FIG. 18 is a list of key electrical elements in the bag taking and supporting equipment, a proximity switch is arranged at the tail end of a conveyor belt 11 to detect whether a packaging bag supporting plate operates in place or not, a detection photoelectric sensor 49 at the edge of a bag opening is arranged at the rear end of a platform 50 to detect whether the bag opening 14a leaks or not, a bag taking sensor is arranged beside a bag taking suction nozzle to detect whether a packaging bag tail 14b is sucked up or not, a bag opening sensor is arranged beside the bag opening suction nozzle to detect whether the bag opening 14a is opened or not, an original point switch 31a and a terminal point switch 31b are arranged at the front end and the rear end of a carriage, the proximity switches are specifically adopted, a magnetic induction switches are arranged on cylinders, an upper limit switch and a lower limit switch of a bag taking cylinder 43, an upper limit switch and a lower limit switch of a lever cylinder 48, an upper limit switch and a lower limit switch of a compression rod cylinder 45, an air cylinder opening limit switch and a lower limit switch of a bag clamping cylinder 48, a cylinder opening and a lower limit switch of a compression rod cylinder 56 and a limiting switch are connected into an input end of a two-way control signal switch of a two-way switch inlet of a small limit switch 19 and a two-way switch of a two-way switch of a two-way control cylinder of a two-way.

In this embodiment, the negative pressure air is driven by compressed air in a workshop in a production workshop by using an induced draft fan and controlling the suction nozzles and the electromagnetic valves of the cylinders through the cylinders.

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

1) the end position of the conveyor belt 11 below the bag taking device 100 is used for conveying a supporting plate 13 on which a plurality of packaging bags 14 are stacked, and the openings of the packaging bags 14 face to the front end of the equipment;

2) the bag taking suction nozzle 43a is driven by the bag taking air cylinder 43 to descend, 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 using negative pressure;

3) the bag taking suction nozzle 43a is driven by the bag taking air cylinder 43 to ascend, and the uppermost packaging bag tail 14b 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 downwards, so as to drive the inclined lever 48a to press downwards and press the lower packaging bag 14;

5) the chain mechanism is driven by the sliding frame servo motor 32 to move along the horizontal slotted hole 39a and the arc slotted hole 39c of the horizontal sliding track plate and the arc sliding track plate 39b, the chain mechanism 36 and a plurality of bag clamping air cylinders 37 arranged at the rear ends of the chain mechanism are pushed to move to a bag taking suction nozzle 43a below the platform 50, and then the bag clamping air cylinders 37 clamp the sucked packaging bag tail 14 b;

6) the bag separating cross bar 47a is driven by a pair of bag separating cylinders 47 to move from back to front between the clamped bag tail 14b and the lower-layer pressed bag tail 14b so as to separate the sucked bag from the lower-layer pressed bag;

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

the left side sliding frame servo motor 32 corresponds to the photoelectric detection sensor 49 at the edge of the left side bag opening, the right side sliding frame servo motor 32 corresponds to the photoelectric detection sensor 49 at the edge of the right side bag opening 14a, namely, the photoelectric detection sensor 49 at the edge of the left side bag opening 14a leaks out, the left side sliding frame servo motor 32 is stopped, and the two left side bag clamping air cylinders 37 are opened; when the photoelectric detection sensor 49 at the edge of the bag opening 14a at the right side leaks out, the right side sliding frame servo motor 32 is stopped, and the two bag clamping cylinders 37 at the right side are opened, so that the edge of the bag opening 14a is parallel to the back side of the platform and is aligned with the bag opening;

8) after the photoelectric detection sensors 49 at the edges of the two bag openings leak, the bag opening cylinder 44 faces downwards to drive the plurality of upper bag opening suction nozzles 44b to move downwards, and 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 cylinder 44 and the pressure rod cylinder 45 move upwards to reset to open the bag opening 14 a;

9) the bag opening rotating mechanism is driven by a bag opening servo motor 53, the bag opening rotating mechanism rotates towards the bag opening direction by taking a horizontal rotating shaft 55 as an axis, a bag opening palm 52 extends into a bag opening 14a of a packaging bag, two bag opening arms 51 are driven by a bidirectional bag opening cylinder 56a to expand towards two sides of the bag opening 14a to tightly support the bag opening 14a, and then the bag opening rotating mechanism is driven by the bag opening servo motor 53 to reversely rotate to a position higher than the horizontal direction, so that the bag opening 14a is sleeved into a feed opening of a feed hopper 70;

10) after the bag mouth 14a is sleeved on the periphery of the feed opening of the feed hopper 70, the clamp plates 71c arranged on the front side and the rear side of the feed hopper 70 are driven by the clamp plate clamping cylinder 71a to clamp the bag mouths 14a on the front side and the rear side, the feed hopper 70 is opened, and the weighed material product is added into the packaging bag 14;

11) after the clamping plate clamping cylinder 71a clamps the bag, the bag opening arm 51 retracts through the small stroke cylinder while the material feeding hopper 70 is opened to feed the material, so that the bag opening arm 51 retracts through a small stroke, the bag opening palm 52 does not tightly support the packaging bag 14, then the bag opening servo motor 53 drives the bag opening arm 51 to move upwards, the bag opening palm 52 is higher than the bag opening 14a, then the small stroke cylinder of the bag opening arm 51 extends out, the bag opening arm 51 is opened to the maximum opening degree, and then the bag opening rotating mechanism is driven by the bag opening servo motor, so that the bag opening arm 51 drives the bag opening palm 52 to return to the rear position of the bag taking device 100;

12) after the materials are filled in the packaging bag 14 and the bag opening palm 52 returns to the original position, the tensioning cylinders 72 of the bag opening 14a tensioning mechanisms on the left side and the right side of the feed opening move downwards to push the right-angle tensioning rods 72a to move downwards and towards the two sides, so that the bag openings are expanded;

13) the clamping plate clamping cylinder 71a is reset, the clamping cylinder 71a loosens the bag openings 14a at the front side and the rear side, and the packaging bags 14 descend onto the product conveyor belt 74 under the action of gravity;

14) the front baffle and the rear baffle are closed under the drive of the baffle cylinder 73, the packaging bag opening 14a is straightened, then the bag opening tensioning mechanism is reset, the tensioning cylinder 72 upwards drives the right-angle tensioning rod 72a to upwards move inwards, the right-angle tensioning rod 72a is reset, the product conveyor belt is started, the packaging bag 14 is conveyed to the next process, and the packaging bag is sealed after being labeled.

The invention has the following positive effects: the bag tail 14b of the packaging bag faces the rear part of the bag taking device 100, so that a bag taking mode of the bag tail 14b can be realized, the bag taking suction pipe 43b is shorter, and the length can be reduced by half compared with the common bag taking device 100, so that the length of the bag taking suction pipe 43b can be shortened, the number of suction nozzles can be reduced, the negative pressure of the suction nozzles can be improved, and the sufficient suction force can be ensured; by arranging a plurality of rows of one-way bending chains 36a on the chain mechanism 36, the chain mechanism 36 can be prevented from being bent reversely when being driven by the carriage servo motor 32, so that the movement of the chain mechanism 36 in the slotted hole of the slide way plate 39 is hindered; the slide way plates 39 are arranged on the two sides of the platform, and the round rods 36b of the chain mechanism 36 are arranged in the lower layer slotted holes of the slide way plates 39 in a penetrating manner, so that the chain mechanism can run along the slotted holes, and the bag clamp 37a is moved to the bag taking suction nozzle 43a below the platform 50; the plurality of parallel sliding frames 31 are arranged above the chain mechanism 36 in the front-back direction, the toothed annular belt 58 is arranged in the front-back direction of each sliding frame 31, the toothed annular belt 58 is meshed with the gear 57, the sliding frame servo motor 32 is connected to the gear shaft, on one hand, the traveling slider 33 can drive the chain mechanism 36 to move, and on the other hand, the sliding frame servo motor 32 can be controlled to stop according to the detection result of the photoelectric detection sensor 49 at the edge of the bag opening 14a arranged at the back end of the platform 50, so that the purpose of adjusting the position of one side of the bag opening 14a is achieved, the bag opening 14a is ensured to be parallel to the back edge of the platform 50, and the horizontal state of the bag opening 14; the suspender 38 of the bag clamping cylinder 37 extending towards two sides is arranged on the bag clamping cylinder 37 at the rear part of the chain mechanism 36, so that the suspender 38 and the round bar are respectively arranged in high and low slotted holes of the sliding way plates 39 at two sides of the chain mechanism 36 in a penetrating way, a plurality of bag clamping cylinders 37 are ensured to be on a horizontal straight line, the middle part of the bag clamping cylinders is prevented from lumping, and the suspender 38 can move along with the lower layer chain mechanism 36 through the high and low slotted holes; by arranging the bag pressing mechanism, the lower packaging bag 14 can be pressed tightly by utilizing the inclined lever 48a of the bag pressing mechanism, so that the bag sucking failure caused by sucking up 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 every time, and the position detection of the lever cylinder 48 is facilitated; by arranging the bag separating cross bar 47a, the packaging bag 14 sucked up by the bag taking mechanism can be separated from the packaging bag 14 below, so that the lower packaging bag 14 is prevented from moving, and convenience is brought to subsequent bag taking; by arranging the pressure lever mechanism, after the packaging bag 14 is pulled to the upper surface of the platform 50 by the bag clamping and pushing mechanism and exceeds the cross bar 47a 1/3 of the pressure lever mechanism, the pressure lever mechanism presses downwards to press the packaging bag 14 to the packaging bag 14 of the platform 50, and the bag clamping and pushing mechanism is continuously pulled backwards to stretch the packaging bag 14, so that the bag opening 14a of the packaging bag 14 can be flattened to form a folded angle, a fold and the like, and the bag opening suction nozzle is ensured not to have faults when opening the bag; by arranging 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, under the driving of the bag opening servo motor 53, the bag opening palm 52 can be inserted into the bag opening 14a, then the bag opening 14a is tensioned along the left and right direction by using the bidirectional bag opening cylinder 56a, and then the bag opening servo motor 53 rotates reversely, so that the bag opening 14a of the packaging bag is sleeved on the periphery of the outlet of the discharging hopper 70 arranged behind the bag taking device 100; the clamping plate 71c can be driven to clamp the bag opening 14a by arranging the clamping plate clamping cylinder 71a, so that the packaging bag 14 can be clamped on the discharging hopper 70, and a product can be loaded into the bag from the discharging opening of the discharging hopper 70; through setting up straining device, be favorable to straining device's right-angle shape tensioning rod 72a when packing splint 71c unclamp sack 14a, expand to the left and right sides along slope spout 72e, simultaneously tensioning cylinder 72's cylinder pole rotates thereupon, descends with wrapping bag 14 synchronous, with wrapping bag sack 14a tensioning to left and right sides direction, is favorable to the encapsulation of sack 14a, and wrapping bag 14 baffle can prevent that wrapping bag 14 from empting and sack 14a warp, guarantees that the wrapping bag under the state of standing, gets into next process and encapsulates.

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

Claims

1. The utility model provides a bag of getting of wrapping bag props a bag equipment, includes the layer board that sets up on conveyer belt, the conveyer belt and the multilayer wrapping bag that the layer board upper level set up, be used for propping out the bag device, lower hopper, its characterized in that of opening the wrapping bag sack: get the bag and prop a bag equipment including getting the bagging apparatus, propping bagging apparatus and sack fixing device, get the bagging apparatus and include the platform, the drive belt terminal point of direction about being provided with on the horizontal plane of platform below gets the bagging apparatus rear and is provided with the product conveyer belt with conveyer belt parallel arrangement, product conveyer belt starting point top is provided with down hopper and sack fixing device, gets the bagging apparatus and includes according to the action order in proper order: the bag taking mechanism, the bag pressing mechanism, the bag clamping and pushing mechanism, the bag separating cross bar and the pressure lever mechanism are arranged on the bag conveying mechanism; the bag opening device comprises a bag opening mechanism and a bag opening rotating mechanism; the bag opening fixing device comprises a bag opening clamping plate mechanism, a bag opening tensioning mechanism and a packaging bag baffle mechanism, the tail of a plurality of layers of packaging bags on the conveyor belt faces one side of the rear part of the equipment, the side surface of the terminal position of the conveyor belt is positioned on one side of the rear part below the platform, the front and rear direction of the bag taking device and the length direction of the conveyor belt form a right-angled shape on the plane, the bag clamping and pushing mechanism is arranged on the platform, the bag clamping and pushing mechanism comprises a chain mechanism of a bag clamp arranged at the rear end and a slide way plate for guiding the bag clamp of the chain mechanism to move to the side surface of the lower-layer conveyor belt, a high-low two-layer slotted hole for guiding the movement of the chain mechanism is arranged on the slide way plate, the bag pressing mechanism is arranged on the outer side surface of the conveyor belt, the bag dividing cross bar and the bag taking mechanism are arranged at the rear position of the lower surface of the platform, the bag, the blanking hopper is arranged above the blanking frame, the blanking port extends into the blanking frame, the front side and the rear side of the blanking hopper in the blanking frame are respectively provided with a bag opening clamping plate mechanism and a packaging bag baffle mechanism from top to bottom, the left side and the right side of the blanking hopper in the blanking frame are provided with bag opening tensioning mechanisms, and the mechanisms of the bag opening fixing device are fixed on the blanking frame or the blanking hopper.

2. The bag taking and opening device for the packaging bag as claimed in claim 1, wherein: the chain mechanism of the bag clamping push-pull mechanism is composed of a plurality of unidirectional bending chains, a plurality of round bars are arranged between connecting nodes of the unidirectional bending chains in a penetrating mode in parallel, a plurality of push-pull connecting pieces are arranged at the front end of the chain mechanism, a plurality of bag clamps are arranged at the rear end of the chain mechanism through clamping cylinders respectively, a plurality of parallel sliding frames 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 frame and meshed with a gear, a sliding frame servo motor is connected to a gear shaft, a follower sliding block is fixed to the toothed annular belt and located right above the push-pull connecting pieces, the follower sliding block is connected with the push-pull connecting pieces through push-pull connecting columns in the vertical direction, a hanging rod of the bag clamping cylinder extending towards two sides is arranged above the clamping cylinders behind the chain mechanism, and the hanging rod and the, In the low slotted hole, a plurality of bag clamps can extend to the side face of the conveyor belt below the platform along with the bending of the sliding track plate.

3. The bag taking and supporting device for the packaging bag as claimed in claim 1, wherein the bag pressing mechanism comprises a lever cylinder, a lever of the lever cylinder is fixed with an L-type connecting sheet, a L-type connecting sheet is overlapped with an inclined lever, the end part of the long side of the L-type connecting sheet close to one side of the lever cylinder is hinged to one end of the inclined lever, the end part of the short side of the L-type connecting sheet 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 mechanism presses the packaging bag which is arranged below.

4. The bag taking and opening device for the packaging bag as claimed in claim 1, wherein: divide a bag mechanism to include that the level is fixed a pair of no pole cylinder on platform below both sides lower floor's support and divide a bag whippletree, divide a bag whippletree to connect on the side slider of no pole cylinder, during the branch bag, divide a bag whippletree to remove and suck up between wrapping bag and lower floor's wrapping bag at the bag tail.

5. The bag taking and opening device for the packaging bag as claimed in claim 1, wherein: get a bag mechanism including getting a bag cylinder, the bag cylinder vertical fixation of getting of the left and right sides is on getting the vertical support frame of bag device rear side top left and right sides, and the left and right sides gets a bag cylinder rod end and is connected with the bag straw of getting of horizontal direction, gets a bag straw and is located platform rear end below, gets a bag straw below and is provided with a plurality of bags suction nozzles of getting, gets a bag suction nozzle and is located wrapping bag tail border inboard, and parallel with the bag tail, gets and communicates negative pressure air on the bag straw.

6. The bag taking and opening device for the packaging bag as claimed in claim 1, wherein: the pressure bar mechanism comprises a pressure bar cylinder and a pressure bar connected with the cylinder rod end of the pressure bar cylinder, and the pressure bar cylinder is vertically arranged on a middle support frame above the platform in the horizontal direction.

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

8. The bag taking and opening device for the packaging bag as claimed in claim 1, wherein: prop bag slewing mechanism's horizontal rotating shaft end connection and have and prop a bag servo motor, horizontal rotating shaft sets up on the horizontal stand of upper strata support frame, articulated in the horizontal rotating shaft have the left and right sides be splayed structure prop a bag arm, two prop and be provided with two-way bag cylinder between the bag arm, two-way bag cylinder of propping includes two big or small strokes, the left and right sides splayed props a bag arm tip and is provided with and props the bag palm, horizontal rotating shaft clockwise rotates the back, prop the bag palm can be towards the wrapping bag sack, support the wrapping bag sack, horizontal rotating shaft anticlockwise rotation back, prop a lower hopper one side that the bag arm changes to the rear, the wrapping bag sack can be established at the feed opening periphery of hopper down.

9. The bag taking and opening device for the packaging bag as claimed in claim 1, wherein: the lower hopper is of an inverted three-dimensional trapezoidal structure with a wide upper part and a narrow lower part, the left and right directions are long directions, the front and back sides of the lower hopper are respectively provided with a clamping plate of a bag mouth clamping mechanism which is parallel to the front and back sides of the lower hopper in a hanging manner, the clamping plate is connected with a clamping plate clamping cylinder which is fixed on the lower hopper, the left and right sides of the lower hopper are respectively provided with a tensioning cylinder of the bag mouth tensioning mechanism, the lower end of the tensioning cylinder is provided with a right-angle tensioning rod, the vertical rod of the right-angle tensioning rod is tightly attached to the left and right sides of the lower hopper, a guide piece with an inclined chute is arranged below the right-angle tensioning rod, the distance from the inclined chute of the guide pieces at the two sides to the left and right sides of the lower hopper is gradually increased from top to bottom, when the tensioning cylinder descends, the right-angle rod horizontal rod of, both ends are connected with crooked connecting rod respectively about the wrapping bag baffle, and crooked connecting rod flexion of a pair of baffle is articulated respectively about the work or material rest on the position, is connected with the baffle cylinder that the level set up on the crooked connecting rod of baffle, and baffle face is parallel with the finished product conveyer belt around, is close to the sack when the wrapping bag baffle is closed, and two board intervals are unanimous with the tensioning rod diameter around, and the wrapping bag baffle is less than the wrapping bag sack height.

10. A bag taking and opening method of a packaging bag, which utilizes the bag taking and opening apparatus of the packaging bag of claims 1 to 9, characterized in that: the bag taking and opening method of the packaging bag comprises the following steps: