CN218022495U

CN218022495U - Bag taking and opening device

Info

Publication number: CN218022495U
Application number: CN202221736956.4U
Authority: CN
Inventors: 李文凯; 曾志军; 甄浩帅; 穆配峰
Original assignee: Dengfeng Qimingxuan Program Controlled Equipment Co ltd
Current assignee: Dengfeng Qimingxuan Program Controlled Equipment Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-12-13
Anticipated expiration: 2032-07-05

Abstract

The utility model belongs to the technical field of equipment for packing, concretely relates to get bag and open bagging apparatus. The bag taking and opening device comprises a rack, wherein a first bag suction mechanism and a second bag suction mechanism which are oppositely arranged are arranged on the rack, and the first bag suction mechanism and the second bag suction mechanism are defined and sequentially arranged along the left-right direction; the first bag suction mechanism comprises a first sucker movably assembled on the rack, and the first sucker can swing downwards, move straightly and suck the opening of a flat packaging bag and then move upwards to a position corresponding to the second sucker left and right; the first bag suction mechanism and/or the second bag suction mechanism are/is provided with a telescopic structure; the bag taking and opening device further comprises a bag pushing mechanism, the bag pushing mechanism and the first bag sucking mechanism are located on the same side in the left-right direction, the bag pushing mechanism is provided with a bag pushing portion which moves left and right in a reciprocating mode, and the bag pushing portion is used for pushing the packaging bags to the right to be vertical when the first sucking disc sucks the opening of the packaging bags and moves upwards to a position corresponding to the second sucking disc in the left-right direction.

Description

Bag taking and opening device

Technical Field

The utility model belongs to the technical field of equipment for packing, concretely relates to get bag and open bagging apparatus.

Background

The packaging of loose noodles is achieved by a loose noodle bagging machine, and the packaging process is usually broken down into a plurality of successive steps and correspondingly into a plurality of devices, such as a bag taking and opening device for taking a placed packaging bag and opening the mouth of the packaging bag, and a bagging device for filling loose noodles into a packaging bag having an opened mouth.

A get bag and open bagging apparatus is shown as the chinese utility model patent that the grant publication number is CN214986436U of prior art, including the frame, the frame is equipped with opening bag mechanism, and opening bag mechanism inhales bag part including the first bag part and the second of arranging relatively, and first bag part of inhaling includes the roll-over stand, is equipped with on the roll-over stand and inhales the sack, and the roll-over stand rotates and installs in the frame. When the bag opening device is used, the overturning frame is transversely arranged firstly, the bag taking mechanism sucks a packaging bag from the bag bin and places the packaging bag on the overturning frame, the bag sucking opening of the overturning frame sucks one side of the bag opening of the packaging bag, the overturning frame is vertically arranged, the second bag sucking part extends out and sucks the other side of the packaging bag, and the second bag sucking part contracts again to finish bag opening. This kind of get bag and open the bagging apparatus and get bag mechanism and open the components of a whole that can function independently of bag mechanism and arrange, overall structure is comparatively complicated, and including the roll-over stand in the mechanism of opening the bag, the wrapping bag needs whole upset during the use, and the space that occupies is great.

The prior art also has an automatic bag taking and bag supporting mechanism shown in a chinese utility model patent with an authorized publication number of CN209480113U, which comprises a frame, wherein the frame comprises a first bag sucking mechanism and a second bag sucking mechanism which are oppositely arranged, the first bag sucking mechanism comprises a rotary cylinder arranged on the frame, a telescopic structure (i.e. a telescopic cylinder in the patent) is fixed on a rotary end of the rotary cylinder, a first suction cup (i.e. a first suction cup component in the patent) is fixed on a telescopic end of the telescopic structure, and the rotary cylinder and the telescopic structure can drive the first suction cup to swing up and down and move telescopically; the second bag suction mechanism comprises a second suction cup (namely a second suction cup assembly) fixedly arranged on the machine frame. During the use, first sucking disc is inhaled the wrapping bag and is transported the wrapping bag to the position just right with the second sucking disc, and when the wrapping bag was located between first sucking disc and the second sucking disc, the first sucking disc of extending structure drive stretches out, and the wrapping bag is inhaled to the second sucking disc, then first sucking disc shrink and with the cooperation of second sucking disc and open the sack of wrapping bag. The automatic bag taking and opening mechanism has the advantages that the bag taking and opening (bag opening) share parts, and the structure is simpler.

When the structural principle of the automatic bag taking and opening mechanism is applied to the field of loose noodle bagging, the packaging bags are generally flatly placed on the bag supporting structure below the first bag sucking mechanism, the first sucking discs swing downwards and move to suck the bag openings of the packaging bags and then swing upwards, and the packaging bags are opened in cooperation with the second sucking discs, so that continuous work of bag taking and bag opening can be realized. However, in practical use, because the length of the packaging bag is large, the moving distance of the first sucker is limited, when the first sucker sucks the bag opening of the packaging bag and swings upwards, the bag opening is opened under the action of wind power, and when the first sucker is located at a position corresponding to the level of the second sucker, the bag bottom of the packaging bag still does not separate from the bag supporting structure, so that the packaging bag is integrally in an inclined arrangement state, the other side of the bag opening of the packaging bag is located below the second sucker, and the bag opening of the packaging bag cannot be sucked by the second sucker, and the bag opening failure is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a get bag and open bagging apparatus to get the bag back wrapping bag slope and lead to opening the technical problem of bag failure among the solution prior art.

In order to achieve the above purpose, the utility model provides a get bag and open bagging apparatus's technical scheme is: a bag taking and opening device comprises a rack, wherein a first bag sucking mechanism and a second bag sucking mechanism which are oppositely arranged are arranged on the rack, and the first bag sucking mechanism and the second bag sucking mechanism are defined and sequentially arranged along the left-right direction; the first bag suction mechanism comprises a first sucker movably assembled on the rack, and the first sucker can swing downwards, move straightly and suck the opening of a flat packaging bag and then move upwards to a position corresponding to the second sucker left and right; the first bag suction mechanism and/or the second bag suction mechanism are/is provided with a telescopic structure, and the telescopic structure is used for driving the corresponding suckers to reciprocate to open bags when the first suckers and the second suckers are correspondingly arranged left and right; the bag taking and opening device further comprises a bag pushing mechanism, the bag pushing mechanism and the first bag sucking mechanism are located on the same side in the left-right direction, the bag pushing mechanism is provided with a bag pushing portion which moves left and right in a reciprocating mode, and the bag pushing portion is used for pushing the packaging bags to the right to be vertical when the first sucking disc sucks the opening of the packaging bags and moves upwards to a position corresponding to the second sucking disc in the left-right direction.

Has the advantages that: when the bag pushing mechanism starts to work, one side of the bag opening of the packaging bag is sucked by the first sucking disc, the packaging bag is in an inclined arrangement state at the moment, and the other side of the bag opening of the packaging bag is lower and cannot be sucked by the second sucking disc; the bag pushing portion pushes the packaging bag to be in a vertical state after extending out, and due to the fact that the packaging bag has certain strength, two sides of the opening of the packaging bag are located on the same horizontal plane, the packaging bag can be reliably sucked by the second sucking disc, and the packaging bag can be reliably opened subsequently.

Preferably, when the second bag suction mechanism is provided with the telescopic structure; the first bag sucking mechanism comprises a mounting base body fixedly arranged on the rack, a rotating shaft and a sucking disc mounting shaft, wherein the rotating shaft and the sucking disc mounting shaft are rotatably mounted on the mounting base body around an axis extending forwards and backwards;

the mounting base body comprises a first frame body and a second frame body which are arranged at intervals in the front-back direction, guide grooves are formed in the first frame body and the second frame body, two ends of the sucker mounting shaft are arranged in the guide grooves of the first frame body and the second frame body in a penetrating mode, and the first sucker is located between the first frame body and the second frame body; the guide groove is provided with an upper arc-shaped guide section and a lower vertical guide section, the arc-shaped guide section is used for guiding the first suction disc to swing up and down, and the vertical guide section is used for guiding the first suction disc to move up and down; the first bag suction mechanism comprises a driving component for driving the sucking disc mounting shaft to rotate in a reciprocating mode.

Has the advantages that: the sucking disc installation axle can rotate around the pivot, can change the distance between sucking disc installation axle and the pivot along with the shape change of guide way moreover, and the guide way includes arc direction section and vertical direction section, and the arc direction section can order about the sucking disc installation axle and carry out the luffing motion, makes first sucking disc can downwardly extending, and vertical direction section can make first sucking disc downstream and press and inhale the bag on the sack of wrapping bag. Because the second is inhaled bag mechanism and is contained the second sucking disc that can stretch out and draw back, first sucking disc need not the action just can accomplish the bag of opening when being in the horizontality, and the reciprocating motion of first sucking disc only need drive assembly a power supply can, it is structural simpler, it is also more convenient to control.

Preferably, the connecting member includes a connecting block and a guide rod connected to each other, the connecting block has a specially-shaped through hole to stop rotation and is sleeved on one of the suction cup mounting shaft and the rotating shaft, and the guide rod penetrates through the other of the suction cup mounting shaft and the rotating shaft. Satisfy the user demand of spline and direction through setting up guide bar, connecting block, it is structural simpler.

Preferably, first support body and second support body all include two grudging posts that the interval was arranged around, all correspond on first support body, the second support body and be provided with the pivot, and the both ends of pivot erect on two grudging posts that correspond the support body. The pivot both ends are erect on the grudging post, and the pivot is more stable, and is more stable to the drive of sucker installation axle.

Preferably, the sucking disc installation axle and the pivot in with the installation base member crossing position department all overlap and be equipped with bearing or axle sleeve. The bearing or the shaft sleeve can reduce the friction force between the sucking disc installation shaft, the rotating shaft and the installation base body, and the clamping stagnation is avoided.

Preferably, the arc-shaped guide section comprises a quick guide section connected with the vertical guide section, and the quick guide section is arranged in a protruding manner towards the direction of the rotating shaft. The quick direction section is arranged towards the direction protrusion at pivot place, and when the sucking disc installation axle passed through on by the quick direction section, the sucking disc installation axle can be accomplished and quick swing shortens the swing required time.

Preferably, the driving part comprises a driving shaft which is rotatably installed on the first support body and the second support body, a crank arm is fixedly arranged on the driving shaft, a connecting rod is arranged between the crank arm and the sucker installation shaft, the connecting rod is hinged with the crank arm and the sucker installation shaft, and the driving shaft can drive the first sucker to reciprocate when rotating in a reciprocating manner.

Preferably, the bag pushing mechanism is mounted on the mounting base of the first bag suction mechanism. The bag pushing mechanism is installed on the installation base body, and the bag pushing mechanism and the first bag absorbing mechanism can form an integral module to realize quick installation.

Preferably, the bag pushing mechanism comprises a telescopic piece which is directly or indirectly fixedly arranged on the rack and can stretch left and right, the bag pushing part is a push plate fixedly arranged on the telescopic piece, and the push plate extends along the front-back direction.

Preferably, the upper side and the lower side of the push plate are provided with flanges bent leftwards. On one hand, the flanging can strengthen the upper side and the lower side of the push plate; on the other hand, the flanging can also prevent the upper side and the lower side of the push plate from scratching the packaging bag.

Drawings

Fig. 1 is a schematic structural view of a bag taking and opening device provided by the present invention;

fig. 2 is a schematic view of a first bag suction mechanism and a second bag suction mechanism in the bag taking and opening device provided by the present invention;

fig. 3 is a schematic structural view of a first viewing angle of a first bag suction mechanism and a first bag pushing mechanism in the bag taking and opening device provided by the present invention;

fig. 4 is a schematic structural view of a second viewing angle of the first bag suction mechanism and the bag pushing mechanism in the bag taking and opening device provided by the present invention;

fig. 5 is a schematic structural view of a third viewing angle of the first bag suction mechanism and the first bag pushing mechanism in the bag taking and opening device provided by the present invention;

fig. 6 is a schematic structural view of a fourth viewing angle of the first bag suction mechanism and the first bag pushing mechanism in the bag taking and opening device provided by the present invention;

fig. 7 is a front view of a first bag suction mechanism and a bag pushing mechanism in the bag taking and opening device provided by the present invention;

FIG. 8 is a schematic view showing the structure of the connecting member of the first bag suction mechanism;

FIG. 9 is a schematic structural view of a rotating shaft in the first bag suction mechanism;

fig. 10 is a schematic structural view of the second bag suction mechanism in the bag taking and opening device provided by the present invention (the third cylinder is in a withdrawing state).

Description of reference numerals:

100. a frame; 200. a bag holding structure; 300. a first bag suction mechanism; 301. a first frame body; 302. a second frame body; 303. a transverse connecting plate; 304. a vertical connecting plate; 305. erecting a frame; 306. a connecting shaft; 307. a guide groove; 308. a sucker mounting shaft; 309. a sucker mounting plate; 310. a first suction cup; 311. a reinforcing connecting rod; 312. a drive shaft; 313. a first crank arm; 314. a connecting rod; 315. a first cylinder; 316. a first cylinder mounting plate; 317. a second crank arm; 318. a connecting member; 319. a rotating shaft; 320. a bearing; 321. an arc-shaped guide section; 322. a vertical guide section; 323. connecting blocks; 324. a guide bar; 325. perforating in a special shape; 326. a shaft body; 327. a guide block; 328. a guide hole; 329. a fast guiding section; 400. a bag pushing mechanism; 401. a second cylinder; 402. pushing the plate; 403. a second cylinder mounting plate; 404. flanging; 500. a second bag suction mechanism; 501. a second bag suction mechanism mounting plate; 502. a third cylinder; 503. a connecting frame; 504. and a second suction cup.

Detailed Description

The utility model provides a get bag and open bagging apparatus's concrete embodiment:

get the bag and open the bagging apparatus and can take the wrapping bag of keeping flat and open the sack of wrapping bag, get the bag and open in the bagging apparatus and get the bag, open the bag sharing second and inhale a bag mechanism, reduce the quantity of spare part, practice thrift the cost.

As shown in fig. 1 to 10, the bag taking and opening device includes a frame 100, and the frame 100 is generally referred to as a frame as long as it can be used as a portion for mounting a carrier on the first bag suction mechanism 300, the second bag suction mechanism 500, and the bag pushing mechanism 400.

As shown in fig. 1 and 2, the first bag suction mechanism 300 and the second bag suction mechanism 500 are arranged oppositely, when the first bag suction mechanism 300 and the second bag suction mechanism 500 are in the state shown in fig. 1 and 2, the packaging bag is located between the first bag suction mechanism 300 and the second bag suction mechanism 500, one side of the mouth of the packaging bag can be sucked by the first suction cup 310 of the first bag suction mechanism 300, the other side of the mouth of the packaging bag can be sucked by the second suction cup 504 of the second bag suction mechanism 500, and then the second suction cup 504 moves away from the first suction cup 310, so that the mouth of the packaging bag is pulled open, and bag opening is achieved. When the bag holding structure 200 is used, the packaging bag is flatly placed and supported, the structure is not limited, and the packaging bag can be supported, after the packaging bag is placed on the bag holding structure 200, the mouth of the packaging bag is located below the first bag suction mechanism 300 shown in fig. 1, and the first bag suction mechanism 300 can suck the mouth of the packaging bag and swing upwards to the state shown in fig. 1 and 2.

For convenience of description, it is defined in this embodiment that the first bag suction mechanism 300 and the second bag suction mechanism 500 are arranged in the left-right direction, and the first bag suction mechanism 300 is located at the left side of the second bag suction mechanism 500, so that the direction perpendicular to the left-right direction and the up-down direction is the front-back direction.

The first bag suction mechanism 300 and the bag pushing mechanism 400 are structured as shown in fig. 3 to 7, the first bag suction mechanism 300 includes a mounting base, the mounting base includes a first frame 301 and a second frame 302 arranged at intervals in the front-rear direction, and the first frame 301 and the second frame 302 have the same structure and are both fixedly arranged relative to the rack 100. A reinforcing connecting rod 311 is further connected between the first frame body 301 and the second frame body 302 to reinforce the strength of the mounting base body. Specifically, as shown in fig. 3, a transverse connecting plate 303 is fixedly mounted on the top of the first frame body 301 and the second frame body 302, vertical connecting plates 304 are fixed on the front and rear ends of the transverse connecting plate 303, and the vertical connecting plates 304 are fixedly mounted on the rack 100.

The first frame body 301 and the second frame body 302 each include two vertical frames 305 arranged at intervals in the front-rear direction, and the two vertical frames 305 are connected by a connecting shaft 306 to form a whole. The first frame 301 and the second frame 302 are rotatably mounted with a rotating shaft 319 around an axis extending forward and backward. The structure of the rotating shaft 319 is as shown in fig. 9, the rotating shaft 319 includes two shaft bodies 326 coaxially arranged, the shaft bodies 326 are connected through a guide block 327, a guide hole 328 is opened on the guide block 327, and an axis of the guide hole 328 is perpendicular to an axis of the shaft body 326. When the installation is performed, as shown in fig. 5, holes are formed in the two stands 305, and the shaft body 326 is externally fitted over the bearing 320 and installed in the holes of the stands 305, that is, both ends of the rotating shaft 319 are bridged between the two stands 305.

As shown in fig. 3, 4 and 7, the first frame body 301 and the second frame body 302 are both provided with a guide groove 307, and the guide groove 307 is specifically installed on the stand 305 of the first frame body 301 and the second frame body 302. The first bag absorbing mechanism 300 further includes a suction cup mounting shaft 308 extending back and forth, two ends of the suction cup mounting shaft 308 respectively penetrate into the guide grooves 307 of the first frame body 301 and the second frame body 302, specifically, a bearing 320 is fixed on the position of the suction cup mounting shaft 308 corresponding to each guide groove 307, and the bearing 320 is in rolling fit with the inner wall of the guide groove 307 to reduce friction. One side fixed mounting of sucking disc installation axle 308 has sucking disc mounting panel 309, and fixed mounting has two first sucking discs 310 on the sucking disc mounting panel 309, and two first sucking discs 310 are arranged along preceding back direction interval, and two first sucking discs 310 hold the wrapping bag jointly. In other embodiments, the number of the first suction cups can be increased or decreased according to actual conditions, and when only one first suction cup is arranged, the first suction cup extends for a certain length along the front-back direction, so that the requirement of reliably sucking the packaging bag is met.

As shown in fig. 5 and 6, the connecting members 318 are respectively sleeved on both ends of the suction cup mounting shaft 308 in a rotation-stopping manner, the connecting members 318 have a structure as shown in fig. 8, the connecting members 318 include a connecting block 323 and a guide rod 324, a special-shaped through hole 325 is formed in the connecting block 323, and the special-shaped through hole 325 is a through hole with a plane on one side. In other embodiments, the shape of the shaped perforations may be other shapes than circles, such as squares, ovals, and the like. The outer diameter of the guide rod 324 is sized to correspond to the inner diameter of the guide bore 328 such that the guide rod 324 can be guided into engagement with the guide bore 328. During installation, the special-shaped section is arranged on the suction cup installation shaft 308 between the two vertical frames 305 in the first frame body 301 and the second frame body 302, the shape of the special-shaped section is consistent with that of the special-shaped through hole 325, and the connecting block 323 is sleeved outside the suction cup installation shaft 308, so that the connecting piece 318 and the suction cup installation shaft 308 are assembled together in a rotation stopping manner. The guide rod 324 of the connector 318 is guided to pass through the guide hole 328. After the installation, the connection member 318 is in a rotation-stopping relationship with both the suction cup mounting shaft 308 and the rotating shaft 319 in the circumferential direction, the suction cup mounting shaft 308 can rotate around the rotating shaft 319, and the suction cup mounting shaft 308 is limited by the shape of the guide groove 307 to bring the connection member 318 into sliding fit with the rotating shaft 319, so that the distance between the suction cup mounting shaft 308 and the rotating shaft 319 is changed.

The shape of the guide groove 307 is as shown in fig. 7, the guide groove 307 comprises an arc-shaped guide section 321 positioned above and a vertical guide section 322 positioned below, the arc-shaped guide section 321 and the vertical guide section 322 are in smooth transition, the arc-shaped guide section 321 comprises a quick guide section 329 connected with the vertical guide section 322, and the quick guide section 329 is arranged in a protruding way towards the direction of the rotating shaft 319; the portion of the arc-shaped guide section 321 above the fast guide section 329 is arranged to protrude away from the direction in which the rotating shaft 319 is located. When the suction cup mounting shaft 308 moves from top to bottom in the arc guide section 321, the suction cup mounting shaft 308 can swing in a downward direction, wherein the suction cup mounting shaft 308 can swing quickly when moving to the quick guide section 329, and the suction cup mounting shaft 308 moves downward when the suction cup mounting shaft 308 moves from top to bottom in the vertical guide section 322. Throughout the process, the connector 318 can slide relative to the shaft 319 to accommodate variations in the distance between the suction cup mounting shaft 308 and the shaft 319. The first suction cup 310 is driven to swing and move downwards while the suction cup mounting shaft 308 moves, the first suction cup 310 which horizontally extends left and right swings downwards to extend downwards, and the first suction cup 310 moves downwards to suck one side of the mouth of the packaging bag on the bag supporting structure 200. The bag is sucked and then moved in the reverse direction until the first suction cup 310 is extended left and right.

In order to bring the suction cup mounting shaft 308 into reciprocating motion, the first bag suction mechanism 300 includes a driving part, as shown in fig. 3, 5 and 6, where the driving part includes a driving shaft 312 rotatably mounted on the first frame 301 and the second frame 302, and both ends of the driving shaft 312 penetrate through the outside of the first frame 301 and the second frame 302, respectively. The two ends of the driving shaft 312 are respectively fixedly provided with a first crank arm 313, the end part of the first crank arm 313 is hinged with a connecting rod 314, the two ends of the suction cup mounting shaft 308 also penetrate out of the first frame body 301 and the second frame body 302, and the other end of the connecting rod 314 is hinged with the suction cup mounting shaft 308. When the driving shaft 312 rotates, the first crank arm 313 can be driven to swing, and the first crank arm 313 drives the suction cup mounting shaft 308 to move along the guide groove 307 through the connecting rod 314.

In order to drive the driving shaft 312 to rotate in a reciprocating manner, the driving part further comprises a second crank arm 317 fixed on the driving shaft 312, the end portion of the second crank arm 317 is fixed on the driving shaft 312, the other end of the second crank arm 317 is hinged with a first air cylinder 315, and the first air cylinder 315 is hinged on the mounting base body. Specifically, a first cylinder mounting plate 316 is fixedly mounted on the second frame body 302, and the first cylinder 315 is hinged to the first cylinder mounting plate 316. The driving shaft 312 is driven to rotate back and forth by the expansion and contraction of the first cylinder 315.

As shown in fig. 3 and 4, the bag pushing mechanism 400 includes a second cylinder 401, the second cylinder 401 is fixed on the mounting base, specifically, a second cylinder mounting plate 403 is fixed on the mounting base, and the second cylinder 401 is fixed on the second cylinder mounting plate 403. The second cylinder 401 extends and retracts left and right and is located below the first suction pad 310, a push plate 402 is fixed to the extending and retracting end of the second cylinder 401, and the push plate 402 extends in the front-rear direction. As shown in FIG. 4, the upper side and the lower side of the push plate 402 are both bent leftwards to form flanges 404, and the flanges 404 can enhance the strength of the upper side and the lower side of the push plate 402 and prevent the upper side and the lower side of the push plate 402 from scratching the packaging bag.

As shown in fig. 2 and 10, the second bag suction mechanism 500 includes a second bag suction mechanism mounting plate 501, the second bag suction mechanism mounting plate 501 is fixedly mounted on the rack 100, a third cylinder 502 is fixedly mounted on the second bag suction mechanism mounting plate 501, the third cylinder 502 can extend and retract along the left-right direction, a connecting frame 503 is fixedly mounted on the third cylinder 502, two second suction cups 504 are fixedly mounted on the connecting frame 503, the two second suction cups 504 are arranged at intervals along the front-back direction, and the second suction cups 504 are connected to a negative pressure suction structure when in use, so as to realize bag suction. In other embodiments, the quantity of second sucking disc can increase and decrease according to actual conditions, and when the second sucking disc only had one, the second sucking disc has certain length along the fore-and-aft direction extension, guarantees to reliably adsorb the wrapping bag.

The utility model discloses a use as follows: the original state is the state shown in fig. 1 and 2, in which the bag is laid on the bag holding structure 200 and the mouth of the bag is located below the first bag sucking mechanism 300. The second suction cup 504 of the second bag suction mechanism 500 is retracted to the right. The first air cylinder 315 in the first bag suction mechanism 300 retracts to drive the driving shaft 312 to rotate, the driving shaft 312 drives the first crank arm 313 and the connecting rod 314 to move, and the connecting rod 314 drives the suction cup mounting shaft 308 to swing downwards until the first suction cup 310 extends downwards; then the driving shaft 312 continues to rotate to drive the first suction cup 310 to move downwards and press the first suction cup 310 to the packaging bag, the negative pressure suction structure connected with the first suction cup 310 works to suck one side of the bag opening of the packaging bag, and then the first cylinder 315 extends out and drives the first suction cup 310 to move upwards and then swing upwards. In the process that the first sucking disc 310 sucks one side of the bag opening of the packaging bag to swing upwards, the bag opening is naturally opened under the action of wind; because the wrapping bag is longer, when first sucking disc 310 was in the state of extending about, the bag bottom of wrapping bag part still remains on holding in the palm bag structure 200, and the wrapping bag is whole to be the tilt state this moment, and the right side of wrapping bag sack is less than second sucking disc 504, and the right side of wrapping bag sack can't be inhaled to second sucking disc 504, leads to unable bag opening. At this moment, the second cylinder 401 of bag pushing mechanism 400 stretches out, drive push pedal 402 and promote the wrapping bag right to vertical state, the wrapping bag becomes vertical state by the tilt state, and because wrapping bag self has certain intensity, make the right side of wrapping bag sack raise and correspond with second sucking disc 504, later the second inhale the third cylinder 502 of bag mechanism 500 and stretch out and drive second sucking disc 504 and inhale the right side of wrapping bag sack, then third cylinder 502 withdraws and cooperates and pull open the sack of wrapping bag with first sucking disc 310.

It should be noted that in the present embodiment, both the first suction cup 310 and the second suction cup 504 include a tube and a suction nozzle at the end, and the tube is fixedly mounted on the plate body by a nut.

In this embodiment, the upper and lower sides of the push plate 402 have flanges 404 bent to the left. In other embodiments, the upper side and the lower side of the push plate are not bent any more, and at the moment, in order to prevent the upper side and the lower side of the push plate from scratching the packaging bag, the upper side and the lower side of the push plate can be subjected to rounding and the like.

In this embodiment, the push plate 402 forms a bag pushing portion of the bag pushing mechanism 400, and the push plate 402 extends forward and backward. In other embodiments, the bag pushing portion includes at least two pushing blocks arranged at intervals in the front-back direction, each pushing block is matched with the pushing packaging bag, at this time, the telescopic member may be provided with an installation frame, and each pushing block is fixed on the installation frame.

In this embodiment, the second cylinder 401 constitutes an extensible member that is extensible in the bag pushing mechanism 400 in the left-right direction. In other embodiments, the telescopic member may be an electric push rod, an oil cylinder or other linkage mechanism with linear telescopic action.

In this embodiment, the bag pushing mechanism 400 is mounted on the mounting base of the first bag suction mechanism 300. In other embodiments, the bag pushing mechanism may be fixedly mounted on the frame, and is fixed relative to the mounting base of the first bag absorbing mechanism, but without connection.

In this embodiment, the driving means of the first bag suction mechanism 300 includes a driving shaft 312, a second crank 317, a first cylinder 315, a first crank 313, and a link 314. In other embodiments, the driving component of the first suction bag mechanism may be an air cylinder, one end of the air cylinder is hinged on the suction cup mounting shaft, and the other end of the air cylinder is hinged on the mounting base.

In this embodiment, the arc-shaped guiding section 321 includes a fast guiding section 329, and the fast guiding section 329 is convexly disposed toward the direction of the rotating shaft 319. In other embodiments, the rapid guide section is omitted, the arc guide section is integrally arranged in a protruding manner in a direction opposite to the rotating shaft, and naturally, during actual arrangement, in order to ensure smooth transition between the rapid guide section and the vertical guide section, a round chamfer can be arranged at the intersection position of the rapid guide section and the vertical guide section.

In this embodiment, the bearings 320 are sleeved outside the suction cup mounting shaft 308 and the rotating shaft 319. In other embodiments, the bearing is replaced by a bushing. In other embodiments, the bearing or bushing may be eliminated without consideration of frictional forces, and the chuck mounts the shaft, and the mounting base are in contact.

In this embodiment, the first frame 301 and the second frame 302 each include two vertical frames 305, and two ends of the rotating shaft 319 are mounted on the two vertical frames 305. In other embodiments, the first frame body and the second frame body only include a single vertical frame, and one end of the rotating shaft is suspended on the first frame body and the second frame body, or the rotating shaft extends forwards and backwards and two ends of the rotating shaft are respectively erected on the first frame body and the second frame body.

In this embodiment, the connecting member 318 includes a connecting block 323 and a guiding rod 324, wherein the guiding rod 324 is circumferentially locked with the rotating shaft 319 and is slidably fitted in the direction of the gap between the rotating shaft 319 and the suction cup mounting shaft 308, and the connecting block 323 is circumferentially locked with the suction cup mounting shaft 308 and is relatively fixedly assembled together in the direction of the gap between the rotating shaft 319 and the suction cup mounting shaft 308; and the rotating shaft 319 includes a shaft body 326 and a guide block 327. In other embodiments, the two ends of the connecting piece can be interchanged, that is, the guide rod of the connecting piece is connected with the sucking disc mounting shaft, and the connecting block is connected with the rotating shaft. In other embodiments, the rotating shaft may be a conventional shaft structure, and when the guide rod of the connecting member is engaged with the rotating shaft, a hole is formed on the rotating shaft; when the connecting block of the connecting piece is matched with the rotating shaft, the rotating shaft is provided with the special-shaped section. In other embodiments, a special-shaped hole or a special-shaped groove is formed in the guide rod of the connecting piece, a corresponding special-shaped section is formed on the rotating shaft or the sucking disc mounting shaft, and the special-shaped hole or the special-shaped groove and the special-shaped section are circumferentially locked and slidably assembled together in a guiding manner.

In this embodiment, the third cylinder 502 of the second bag suction mechanism 500 forms a telescopic structure for driving the second suction cup 504 to move left and right. In other embodiments, the telescopic structure may be an electric push rod, a cylinder or other linkage mechanism with a linear telescopic end.

In this embodiment, the second bag suction mechanism 500 is provided with a telescopic structure, the first bag suction mechanism 300 includes a mounting base, a guide groove, a suction cup mounting shaft, a rotating shaft, a connecting member, and the like, the first suction cup 310 in the first bag suction mechanism 300 does not move in a left-right telescopic manner when being in a horizontal state, and the bag opening is completed by the telescopic structure in the second bag suction mechanism 500. In other embodiments, first bag mechanism can adopt the mode of the file quoted in the background art, first bag mechanism is including rack-mounted revolution mechanic promptly, be fixed with the extending structure mount pad on revolution output of revolution mechanic, install extending structure on the extending structure mount pad, extending structure's the flexible end is fixed with first sucking disc, during the use, extending structure stretches out and drives first sucking disc and holds the wrapping bag after the revolution mechanic rotates, later extending structure contracts back and revolution mechanic reverse rotation, then extending structure stretches out and opens the bag with the cooperation of second sucking disc. At the moment, the first bag suction mechanism is provided with a telescopic structure, and the second bag suction mechanism can be provided with the telescopic structure or not.

Claims

1. A bag taking and opening device comprises a rack (100), wherein a first bag suction mechanism (300) and a second bag suction mechanism (500) which are oppositely arranged are arranged on the rack (100), and the first bag suction mechanism (300) and the second bag suction mechanism (500) are defined and sequentially arranged along the left-right direction; the first bag sucking mechanism (300) comprises a first sucking disc (310) movably assembled on the rack (100), and the first sucking disc (310) can swing downwards, move straightly and suck a bag opening of a flat packing bag and then move upwards to a position corresponding to the second sucking disc (504) left and right; the first bag suction mechanism (300) and/or the second bag suction mechanism (500) are/is provided with a telescopic structure, and the telescopic structure is used for driving the corresponding suction cups to reciprocate to open bags when the first suction cups (310) and the second suction cups (504) are correspondingly arranged left and right; the method is characterized in that: the bag taking and opening device further comprises a bag pushing mechanism (400), in the left-right direction, the bag pushing mechanism (400) and the first bag sucking mechanism (300) are located on the same side, the bag pushing mechanism (400) is provided with a bag pushing portion which moves left and right in a reciprocating mode, and the bag pushing portion is used for pushing the packaging bags to the right to be in a vertical state when the first sucking disc (310) sucks the bag openings of the packaging bags and moves upwards to the position corresponding to the second sucking disc (504) in the left-right direction.

2. The bag taking and opening device according to claim 1, wherein: when the second bag suction mechanism (500) is provided with the telescopic structure; the first bag suction mechanism (300) comprises a mounting base body fixedly arranged on the rack (100), a rotating shaft (319) and a suction cup mounting shaft (308), wherein the rotating shaft (319) and the suction cup mounting shaft (308) are rotatably mounted on the mounting base body around a front-back extending axis, the first suction cup (310) is fixedly arranged on one side of the suction cup mounting shaft (308), the suction cup mounting shaft (308) is connected with the rotating shaft (319) through a connecting piece (318), two ends of the connecting piece (318) are respectively fixedly assembled with the suction cup mounting shaft (308) and the rotating shaft (319), one of the suction cup mounting shaft (308) and the rotating shaft (319) is fixedly assembled with the corresponding end of the connecting piece (318) in the interval arrangement direction of the suction cup mounting shaft (308) and the rotating shaft (319), and the other one of the suction cup mounting shaft (308) and the rotating shaft (319) is slidably assembled with the corresponding end of the connecting piece (318) so that the suction cup mounting shaft (308) can rotate around the rotating shaft (319);

the mounting base comprises a first frame body (301) and a second frame body (302) which are arranged at intervals in the front-back direction, guide grooves (307) are formed in the first frame body (301) and the second frame body (302), two ends of a sucker mounting shaft (308) are arranged in the guide grooves (307) of the first frame body (301) and the second frame body (302) in a penetrating mode, and the first sucker (310) is located between the first frame body (301) and the second frame body (302); the guide groove (307) is provided with an upper arc-shaped guide section (321) and a lower vertical guide section (322), the arc-shaped guide section (321) is used for guiding the first suction disc (310) to swing up and down, and the vertical guide section (322) is used for guiding the first suction disc (310) to move up and down; the first bag suction mechanism (300) comprises a driving component for driving the sucker mounting shaft (308) to rotate in a reciprocating way.

3. The bag taking and opening device according to claim 2, wherein: the connecting piece (318) comprises a connecting block (323) and a guide rod (324) which are connected with each other, the connecting block (323) is provided with a special-shaped through hole (325) so that the connecting block is sleeved on one of the sucking disc mounting shaft (308) and the rotating shaft (319) in a rotation stopping way, and the guide rod (324) penetrates through the other one of the sucking disc mounting shaft (308) and the rotating shaft (319).

4. The bag taking and opening device according to claim 3, wherein: first support body (301) and second support body (302) all include around two grudging posts (305) of interval arrangement, all correspond on first support body (301), second support body (302) and be provided with pivot (319), and the both ends of pivot (319) erect on two grudging posts (305) of corresponding support body.

5. The bag taking and opening device according to claim 2, 3 or 4, wherein: and bearings (320) or shaft sleeves are sleeved at the intersection positions of the sucking disc mounting shaft (308) and the rotating shaft (319) and the mounting base body.

6. The bag taking and opening device according to claim 2, 3 or 4, wherein: the arc-shaped guide section (321) comprises a quick guide section (329) connected with the vertical guide section (322), and the quick guide section (329) is arranged in a protruding mode towards the direction of the rotating shaft (319).

7. The bag taking and opening device according to claim 2, 3 or 4, wherein: the driving part comprises a driving shaft (312) which is rotatably installed on the first frame body (301) and the second frame body (302), a crank arm is fixedly arranged on the driving shaft (312), a connecting rod (314) is arranged between the crank arm and the sucker installation shaft (308), the connecting rod (314) is hinged with the crank arm and the sucker installation shaft (308), and the driving shaft (312) can drive the first sucker (310) to reciprocate during reciprocating rotation.

8. The bag taking and opening device according to claim 2, 3 or 4, wherein: the bag pushing mechanism (400) is installed on the installation base body of the first bag absorbing mechanism (300).

9. The bag taking and opening device according to claim 1, 2, 3 or 4, wherein: the bag pushing mechanism (400) comprises a telescopic piece which is directly or indirectly fixedly arranged on the rack (100) and can stretch left and right, the bag pushing portion is a push plate (402) fixedly arranged on the telescopic piece, and the push plate (402) extends along the front-back direction.

10. The bag taking and opening device according to claim 9, wherein: the upper side and the lower side of the push plate (402) are provided with flanges (404) bent leftwards.