CN115367223B - Prefabricated bag flattening and conveying method and equipment thereof - Google Patents
Prefabricated bag flattening and conveying method and equipment thereof Download PDFInfo
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- CN115367223B CN115367223B CN202210925956.7A CN202210925956A CN115367223B CN 115367223 B CN115367223 B CN 115367223B CN 202210925956 A CN202210925956 A CN 202210925956A CN 115367223 B CN115367223 B CN 115367223B
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- bag body
- flattening
- conveying
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012546 transfer Methods 0.000 claims abstract description 5
- 238000001179 sorption measurement Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 16
- 238000005452 bending Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 19
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
- B65B43/14—Feeding individual bags or carton blanks from piles or magazines
- B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
- B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
- B65B43/52—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using roller-ways or endless conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B57/00—Automatic control, checking, warning, or safety devices
- B65B57/02—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages
- B65B57/04—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages and operating to control, or to stop, the feed of such material, containers, or packages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
Abstract
The invention discloses a prefabricated bag flattening and conveying method and equipment, comprising the following steps: 1. the bag body is provided with a ridge line, two sides of the bag body are bent upwards or downwards around the ridge line, and a bag pile formed by stacking the bag bodies up and down is moved into the material clamping area; 2. the flattening piece moves downwards and is pressed on the bag pile, so that the bag body is unfolded and kept in a paved state; 3. the material sucking device moves downwards and adsorbs the uppermost bag body in the bag pile, and the bottom side of the material sucking device is provided with adsorption points corresponding to the two sides of the ridge line of the uppermost bag body; 4. the flattening piece moves upwards, and the suction device transfers the unfolded bag body to a negative pressure conveying belt; 5. the steps 2 to 4 are repeated, and the two sides of the bag body bent are stretched away from the ridge line, so that false clamping of the suction head is reduced, bending and uplifting of the bag body are reduced, the attaching area of the negative pressure conveying belt and the bag body is increased, the suction of the negative pressure conveying belt is facilitated, the positioning stability of the bag body on the negative pressure conveying belt is ensured, and the wrinkling and falling-off conditions of the prefabricated bag are reduced.
Description
Technical Field
The invention relates to the field of prefabricated bag conveying, in particular to a prefabricated bag flattening conveying method and equipment.
Background
In the packaging process of sanitary napkins, the prefabricated bags for packaging are mostly made of PE films, the prefabricated bags are too soft and elastic, so that the prefabricated bags are easy to deform and difficult to shape, the prefabricated bags stacked up and down often show a curled state when being fed into a clamping area of a packaging machine, namely, the bag bodies are turned up or turned down along two sides of a ridge line of the middle of the prefabricated bags, the clamped bag bodies are easy to bend in the subsequent bag taking process, the bag bodies in the bent state are easy to wrinkle when being sucked up, the situation that positioning is unstable and fall off occurs, or a plurality of prefabricated bags are clamped simultaneously due to mis-clamping, the subsequent processing and bagging are influenced, the bag taking failure leads to the need of stopping and finishing of workers, and the production is seriously delayed.
Disclosure of Invention
The invention aims to provide a prefabricated bag flattening and conveying method and equipment thereof, which solve one or more technical problems in the prior art and at least provide a beneficial selection or creation condition.
The invention solves the technical problems as follows:
A prefabricated bag flattening and conveying method comprises the following steps: step 1, the bag body is provided with a ridge line, two sides of the bag body are bent upwards or downwards around the ridge line, and the bag bodies are stacked up and down to form a bag pile and are moved into a material clamping area; step 2, the flattening piece moves downwards and is pressed on the bag pile, so that the bag body is unfolded and kept in a flattened state; step 3, the material sucking device moves downwards and adsorbs the uppermost bag body in the bag pile, and adsorption points are arranged at the bottom side of the material sucking device and correspond to the two sides of the ridge line of the uppermost bag body; step 4, the flattening piece moves upwards, and the suction device transfers the flattened bag body in the step 3 onto a negative pressure conveying belt; and 5, repeating the steps 2 to 4, and transferring the bag bodies in the bag stack to a negative pressure conveying belt one by one.
The technical scheme has at least the following beneficial effects: when a bag pile is positioned in a clamping area, a flattening piece moves downwards in the clamping area and presses the surface of the bag pile, stacked bag bodies are flattened, a suction device presses downwards and sucks two sides of the bag bodies respectively, the flattened bag bodies move onto a negative pressure conveying belt along with the suction device, and single bag bodies are continuously conveyed under the suction action of the negative pressure conveying belt.
As a further improvement of the technical scheme, after the sensor senses that the bag pile enters the clamping area, the first supporting piece jacks up the middle part of the bottom surface of the bag pile; after the inductor senses that the bag pile in the clamping area finishes feeding, the first supporting piece moves downwards and exits the clamping area. The bag body is upwards bent around the ridge line on both sides, namely the opening formed by the winding of the bag body is upwards, after the bag pile is positioned in the clamping area, the first supporting piece jacks up the middle part of the bottom surface of the bag pile, then the flattening piece is downwards pressed on the surface of the bag pile, the bag body is reversely bent on both sides of the ridge line under the action of the first supporting piece, the bag body can be accelerated to restore to be smooth under the action of bending, along with the one-by-one conveying of the single bag body, the flattening piece realizes repeated pressing on the bag pile, the flattening effect of the bag body is improved, after the bag pile is completely loaded, the first supporting piece falls back, the next group of bag piles can be guaranteed to be transferred to the clamping area, and the blocking is prevented.
As another improvement of the above technical solution, the extending direction of the flattening member is perpendicular to the ridge line of the bag body. The flattening piece is perpendicular to the ridge line of the bag body in the plane direction, so that the flattening effect of the flattening piece on the two bent sides of the bag body is guaranteed, the flattening area of the flattening piece in the direction perpendicular to the ridge line of the bag body in the operation process can be reduced, and interference with the material sucking device is reduced.
As another improvement of the above technical solution, the feeding device is divided into a plurality of feeding areas sequentially along the conveying direction, the feeding areas are provided with bag stacks, and the feeding device can move the bag stacks from the feeding areas into the clamping areas. The feeding area can be conveyed under the action of the feeding device and is overlapped with the clamping area, when the bag pile at the part of the clamping area is fed, the feeding device continuously pushes the next feeding area into the clamping area, automatic feeding is realized, and the production efficiency is improved.
As a further development of the above-mentioned solution, the ridge line of the bag body may be perpendicular or parallel to the conveying direction of the feed device. Is suitable for various machines and improves the applicability.
As a further improvement of the above solution, the pre-press is pressed down and the stack of bags is periodically flattened before entering the nip. The pre-pressing piece performs downward pressing on the bag pile at the position of the feeding area in advance, so that two sides of the ridge line of the bag body are unfolded, the flatness of the bag body when entering the clamping area is further improved, the flattening effect of the flattening piece is ensured, and the bag taking success rate is improved.
The invention also provides a prefabricated bag flattening and conveying device which is suitable for the prefabricated bag flattening and conveying method, and comprises the following steps: the suction port of the negative pressure conveying belt faces downwards to the material clamping area; the feeding device comprises a conveying belt, a conveying groove and a stirring rod, wherein the conveying belt is positioned below the conveying groove, the conveying belt conveys along the front-back direction, a plurality of stirring rods are arranged on the conveying belt at intervals, the stirring rods extend upwards out of the bottom surface of the conveying groove, and a feeding area is formed between two adjacent stirring rods and the conveying groove, wherein one feeding area is positioned in the clamping area; the flattening piece is positioned in the clamping area and can move up and down; the suction device comprises suction heads capable of moving up and down, and the two suction heads are respectively positioned at two sides of the negative pressure conveying belt.
The technical scheme has at least the following beneficial effects: the bag stacks in the multiple feeding areas are supported by the conveying grooves, the bag stacks are stirred forward by the stirring rod under the movement of the conveying belt, so that the feeding areas at the front end gradually move into the clamping areas, the conveying belt stops operating, the flattening piece moves downwards and flattens the bag stacks, the two suction heads respectively press downwards and suck the uppermost bag bodies along two sides of a ridge line, after successful suction, the flattening piece moves upwards, the suction heads move upwards along with the suction heads, the bag bodies are stuck to the suction openings at the lower side of the negative pressure conveying belt, after the bag bodies are sucked by the negative pressure conveying belt, the suction heads cancel suction, and the single bag bodies continue to be conveyed along with the negative pressure conveying belt.
As a further improvement of the technical scheme, the material sucking device comprises a material sucking cylinder, a frame and a spring, wherein the material sucking cylinder drives the frame up and down, a sliding column is arranged at the top of the suction head and is in sliding connection with the frame, the spring is sleeved on the sliding column, the upper end of the spring abuts against the frame, and the lower end of the spring abuts against the suction head. The suction cylinder drives the frame to move downwards, the suction head moves downwards along with the frame and is propped against the bag body, the frame moves downwards continuously, the spring is compressed, the suction head has certain pressure on the bag body, the suction effect is improved, meanwhile, the existence of the spring can prevent the suction head from pressing down too much, the extrusion force of the suction head on the bag body is reduced, and the damage of the bag body is reduced.
As another improvement of the technical scheme, the bottom surface of the conveying groove is provided with the inductor and the first supporting piece, the first supporting piece can penetrate out upwards or retract downwards to the bottom surface of the conveying groove, and the inductor and the first supporting piece are located in the clamping area. The first support piece jack-up bag pile's bottom surface middle part, the flattening piece pushes down on bag pile surface then, and the bag body is located the both sides of ridgeline and carries out reverse buckling under the first support piece effect of rising for the bag body can be accelerated under the effect of buckling and resume the horizontality, improves the flattening efficiency of bag body.
As another improvement of the technical scheme, the invention further comprises a pre-pressing piece, wherein a second supporting piece is arranged between two adjacent material stirring rods of the conveyor belt, the second supporting piece extends out of the bottom surface of the conveying groove upwards, the pre-pressing piece is positioned above the conveying groove and in any one of the feeding areas except the feeding area in the material clamping area, and the pre-pressing piece can move up and down. The both sides of the bag body are upwards buckled around the ridgeline, and when the bag pile conveys on feed arrangement, the ridgeline department of bag pile bottom surface is jacked all the time to the second, and the pre-pressing piece then constantly presses the both sides of bag pile along the ridgeline for the bag body is reverse to be buckled, improves flattening efficiency, makes the bag body improve before going into the clamp material district, further improves follow-up bag success rate of getting.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the invention, but not all embodiments, and that other designs and drawings can be obtained from these drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic view of a bag stack transport structure according to an embodiment of the present invention, wherein a ridge line of the bag stack is perpendicular to a transport direction of a feeding device;
FIG. 2 is a schematic view of a bag stack transport configuration according to an embodiment of the present invention, wherein a ridgeline of the bag stack is parallel to a transport direction of the feeding device;
FIG. 3 is a block diagram of a preform bag flattening and conveying apparatus provided in accordance with an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of area A of FIG. 3;
fig. 5 is a partial block diagram of a feeding section of a feeding device according to an embodiment of the present invention, including a pre-pressing member and a second supporting member.
In the accompanying drawings: 110-bag stacks, 120-ridge lines, 130-feeding devices, 140-feeding areas, 311-conveying belts, 312-conveying grooves, 313-stirring rods, 314-clamping areas, 321-suction heads, 322-suction cylinders, 330-lifting cylinders, 340-negative pressure conveying belts, 341-negative pressure frames, 342-belts, 343-tensioning roller sets, 350-flattening pieces, 410-sensors, 420-first supporting pieces, 510-pre-pressing pieces and 520-second supporting pieces.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to a connection structure that may be better formed by adding or subtracting connection aids depending on the particular implementation. The technical features of the invention can be interactively combined on the premise of no contradiction and conflict.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1, the bag body of the prefabricated bag has a ridge line 120, two sides of the bag body are bent upwards around the ridge line 120, so that the opening of the folded bag body faces upwards, if the bag is taken directly, the situation that the bag body is clamped more or the bag body is clamped unstably because the bag body is bent excessively is easy to cause, if the bag is taken successfully, the folded bag body also easily causes the subsequent packaging and bagging to fail.
Referring to fig. 3 and 4, in order to improve the bag taking success rate and ensure the subsequent production, the prefabricated bag flattening and conveying method provided by the invention comprises the following steps: 1. moving a bag stack 110 formed by stacking a plurality of bag bodies up and down into a clamping area 314; 2. the flattening piece 350 moves downwards and presses on the bag stack 110, so that two sides of the bag body bending are unfolded in a direction away from the ridge line 120, and the flattening piece 350 keeps a state of being pressed on the bag stack 110; 3. the two suction heads 321 of the suction device are pressed downwards and respectively suck the two side edges of the ridge line 120 of the bag body; 4. the flattening piece 350 moves upwards to cancel the compression on the bag stack 110, and the suction head 321 lifts the bag body upwards and enables the bag body to be attached to the negative pressure conveying belt 340; 5. suction head 321 removes suction from the single bag and negative pressure conveyor 340 sucks up the bag and continues to convey.
Specifically, the flattening piece 350 makes the both sides that the bag body was buckled stretch towards keeping away from the ridge line 120, guarantee that the suction head 321 that pushes down can absorb the both sides adsorption point that the bag body of the upper strata had expanded, reduce the circumstances that suction head 321 misconnection, reduce the disposable bag of suction head 321 and play a plurality of bag bodies, simultaneously, the in-process that suction head 321 pushes down, the bag body realizes further opening along the both sides of ridge line 120, improve the flattening effect of bag body, after suction head 321 absorbs the bag body, the ridge line 120 part of bag body also can remain the exhibition all the time, reduce the bag body and buckle and the circumstances that the middle part is bellied downwards, improve the laminating area of negative pressure conveyer belt 340 and bag body, make things convenient for the absorption of negative pressure conveyer belt 340, and guarantee the positional stability of bag body on negative pressure conveyer belt 340, reduce the circumstances emergence that prefabricated bag is wrinkled and drops, improve the bag success rate of getting, realize production efficiency improvement.
It should be noted that, referring to fig. 2, two sides of the bag body may be bent downward along the ridge line 120, so that the bag body is in a downward fastening state, and when the flattening member 350 is pressed down, the bag body may be flattened, so as to ensure the suction effect of the suction head 321.
Further, when the sensor 410 senses that the bag stack 110 completely enters the material clamping area 314, the first supporting member 420 pushes up the middle of the bottom surface of the bag stack 110, and then the flattening member 350 is pressed down on the surface of the bag stack 110, and the bag body is reversely bent at two sides of the ridge line 120 under the action of the first supporting member 420.
When the sensor 410 senses that the bag stack 110 in the nip 314 is fed, the first support 420 moves downward and out of the nip 314.
Specifically, the two sides of the bag body are bent upwards around the ridge line 120, that is, the opening formed by winding the bag body is upward, after the bag stack 110 is located in the clamping area 314, the first supporting piece 420 jacks up the middle of the bottom surface of the bag stack 110, then the flattening piece 350 is pressed down on the surface of the bag stack 110, the bag body is reversely bent at the two sides of the ridge line 120 under the action of the first supporting piece 420, so that the bag body can be accelerated to be restored to be smooth under the effect of bending, the flattening piece 350 realizes periodical repeated pressing on the bag body stack along with the one-by-one conveying of the single bag body, the flattening effect of the bag body is improved, after the bag stack 110 is completely fed, the first supporting piece 420 falls back, the next group of the bag stack 110 can be transferred to the clamping area 314, and blocking is prevented.
Moreover, the first supporting member 420 may face the ridge line 120 of the bag stack 110 and jack up the middle part of the ridge line 120, and the suction heads 321 are located at two sides of the first supporting member 420, so as to improve the flattening effect on the bag body.
Further, the extension direction of the flattened member 350 is perpendicular to the ridge line 120 of the bag body.
Specifically, the flattening piece 350 is perpendicular to the ridge line 120 of the bag body in the plane direction, so that the extrusion and flattening effects of the flattening piece 350 on two sides of the bag body in bending are guaranteed, the flattening area of the flattening piece 350 in the direction perpendicular to the ridge line 120 of the bag body in the operation process can be reduced, and interference with the suction head 321 is reduced.
It will be appreciated that flattening of the bag is accomplished by flattening the flattened member 350, and that the direction of extension of flattened member 350 must be parallel to the horizontal plane.
Further, the feeding device 130 is sequentially divided into a plurality of feeding areas 140 along the conveying direction, the feeding areas 140 are provided with bag stacks 110, and the feeding device 130 can transfer the bag stacks 110 from the feeding areas 140 to the clamping areas 314.
Specifically, the feeding area 140 may be conveyed and overlapped on the clamping area 314 under the action of the feeding device 130, and when the feeding of the bag stack 110 in the part of the clamping area 314 is completed, the feeding device 130 continuously pushes the next feeding area 140 into the clamping area 314, so as to realize automatic feeding and improve the production efficiency.
And, the ridge line 120 of the pouch body may be perpendicular or parallel to the conveying direction of the feeding device 130.
Specifically, when the ridge line 120 of the bag body is perpendicular to the conveying direction of the feeding device 130, the flattening piece 350 is parallel to the conveying direction of the feeding device 130, if the ridge line 120 of the bag body is parallel to the conveying direction of the feeding device 130, the flattening piece 350 is perpendicular to the conveying direction of the feeding device 130, so that the machine is suitable for multiple machines with different feeding directions, and the applicability is improved.
Further, referring to FIG. 5, the preform 510 is depressed and periodically flattened against the bag stack 110 prior to entering the nip 314. The pre-pressing piece 510 performs pressing on the bag stack 110 at the position of the feeding area 140 in advance, so that two bent sides of the ridge line 120 of the bag body are unfolded, flatness of the bag body when the bag body enters the clamping area 314 is further improved, phenomena such as bag body tilting and bending possibly occurring in the process of pressing the bag stack 110 by the flattening piece 350 are reduced, flattening effect of the flattening piece 350 is guaranteed, and bag taking success rate is improved.
It should be noted that, the pre-pressing member 510 performs repeated pressing on the bag stack 110 that is ready to enter the nip 314, so as to ensure gradual reset of the bag body, and at the same time, prevent the bag body from being bent and deformed that is difficult to reverse due to continuous pressing, and the downward moving frequency of the pre-pressing member 510 may be consistent with or inconsistent with the flattening frequency of the flattening member 350, which is not specifically limited in this embodiment.
Further, the present invention also provides a preform bag flattening and conveying apparatus, which is adapted to the above preform bag flattening and conveying method, comprising: a negative pressure conveyer belt 340, the suction port of which faces downwards to the clamping area 314; the feeding device 130 comprises a conveying belt 311, a conveying groove 312 and a stirring rod 313, wherein the conveying belt 311 is positioned below the conveying groove 312, the conveying belt 311 is conveyed along the front-back direction, a plurality of stirring rods 313 are arranged on the conveying belt 311 at intervals, the stirring rod 313 extends upwards out of the bottom surface of the conveying groove 312, a feeding area 140 is formed between two adjacent stirring rods 313 and the conveying groove 312, and one feeding area 140 is positioned in a clamping area 314; a flattening member 350 located in the nip 314, the flattening member 350 being movable up and down; the suction device comprises suction heads 321 capable of moving up and down, and the two suction heads 321 are respectively positioned at two sides of the negative pressure conveying belt 340.
Specifically, the conveying groove 312 holds the bag stacks 110 in the multiple feeding areas 140, under the movement of the conveying belt 311, the material pulling rod 313 pulls the bag stacks 110 forward, so that the feeding area 140 at the front end gradually moves into the material clamping area 314, the conveying belt 311 stops operating, the flattening piece 350 moves downwards and flattens the bag stacks 110, the two suction heads 321 respectively press downwards and suck the uppermost bag body along the two sides of the ridge line 120, after successful suction, the flattening piece 350 moves upwards, the suction heads 321 move upwards along with the suction heads, the bag bodies are attached to the suction ports at the lower side of the negative pressure conveying belt 340, after the negative pressure conveying belt 340 sucks the bag bodies, the suction heads 321 cancel suction force, and the single bag body continues to be conveyed along with the negative pressure conveying belt 340.
In practice, the flattening piece 350 may be rod-shaped and perpendicular to the ridge line 120 of the bag body, or form a certain included angle with the ridge line 120 of the bag body, so long as two sides of the ridge line 120 of the bag body can be simultaneously extruded, the gap between the rod-shaped flattening piece 350 and the bag body is reduced, the flattening effect can be ensured, and the suction head 321 is convenient for sucking the bag body. In addition, the flattening member 350 may be planar, so as to enhance the flattening effect.
In addition, the suction head 321 is in a long strip shape, and the opening is downward, so that the contact range between the suction head 321 and the side edge of the bag body is improved, and the clamping stability is improved.
Further, the material sucking device comprises a material sucking cylinder 322, a frame and a spring, wherein the material sucking cylinder 322 drives the frame up and down, a sliding column is arranged at the top of the suction head 321 and is in sliding connection with the frame, the spring is sleeved on the sliding column, the upper end of the spring abuts against the frame, and the lower end of the spring abuts against the suction head 321.
Specifically, inhale material cylinder 322 drive frame and move down, and suction head 321 is at random put up the downwardly moving and support and press on the bag body, and the frame is continuous to move down, and the spring compression for suction head 321 has certain pressure to the bag body, improves the suction effect, simultaneously, the existence of spring can prevent suction head 321 down force too big, reduces the extrusion force of suction head 321 to the bag body, reduces the bag body damage.
In actual use, the two suction heads 321 are synchronously connected and are arranged on two sides of the negative pressure frame 341, and the suction cylinder 322 and the frame are both positioned above the negative pressure frame 341, so that interference to the negative pressure frame 341 caused by up-and-down movement of the suction heads 321 is prevented.
Referring to fig. 4, in this embodiment, the bottom surface of the conveying trough 312 is provided with an inductor 410 and a first supporting member 420, and the first supporting member 420 can be pushed out or pulled back down to the bottom surface of the conveying trough 312, where the inductor 410 and the first supporting member 420 are located in the material clamping area 314.
Specifically, the first supporting member 420 jacks up the middle part of the bottom surface of the bag stack 110, and then the flattening member 350 is pressed down on the surface of the bag stack 110, and the bag body is reversely bent at two sides of the ridge line 120 under the action of the first supporting member 420, so that the bag body can be accelerated to recover to a flattened state under the action of bending, and the flattening efficiency of the bag body is improved.
It should be noted that, the sensor 410 may be an infrared sensor, and the first supporting member 420 may be driven by the lifting cylinder 330, so that the first supporting member 420 may penetrate into the material clamping area 314 upwards, to jack up the bag stack 110, or withdraw from the material clamping area 314 downwards.
Further, referring to fig. 5, the present invention further includes a pre-pressing member 510, wherein a second supporting member 520 is disposed between two adjacent material pulling rods 313 of the conveyor belt 311, the second supporting member 520 extends upward from the bottom surface of the conveying slot 312, and the pre-pressing member 510 is located above the conveying slot 312 and in any one of the feeding areas 140 except the feeding area 140 in the material clamping area 314, and the pre-pressing member 510 can move up and down.
Specifically, when the bag stack 110 is conveyed on the feeding device 130, the second supporting member 520 always jacks up the ridge line 120 on the bottom surface of the bag stack 110, and the pre-pressing member 510 continuously presses the two sides of the bag stack 110 along the ridge line 120, so that the bag body is reversely bent, the flattening efficiency is improved, the flatness of the bag body before the bag body enters the clamping area 314 is improved, and the success rate of subsequent bag taking is further improved. In fact, the second support 520 may be centered over the bottom of the bag stack 110 to improve the flattening efficiency. The pre-press 510 may be driven up and down by an air cylinder.
In this embodiment, there are two pre-pressing members 510, and the extending direction of the pre-pressing members 510 is horizontal to the ridge line 120 of the bag body, so that the pre-pressing members 510 can press the bent portions on two sides of the bag body periodically.
In this embodiment, the negative pressure conveyer belt 340 includes a negative pressure frame 341, a belt 342, a tensioning roller set 343, where an opening of the negative pressure frame 341 faces downward and generates suction force, the belt 342 covers the opening of the negative pressure frame 341 and continuously moves along an extending direction of the negative pressure frame 341, a plurality of through holes are disposed on a belt surface of the belt 342, two suction heads 321 are disposed on two sides of the negative pressure frame 341 in parallel, the flattening piece 350 is located at a head end of the negative pressure frame 341 and perpendicular to the extending direction of the negative pressure frame 341, interference is reduced, and the tensioning roller set 343 tensions the belt 342 and reduces slipping of the belt 342. The conveyor 311 is a chain, the material shifting rod 313 and the second supporting piece 520 are both connected to the chain, and the bag stack 110 placed on the conveying groove 312 is shifted by the material shifting rod 313 under the movement of the chain, so that feeding is realized.
And, the invention still includes the guide blade, the bottom of guide blade stretches to clamping area 314, and the top of guide blade extends along the transfer direction slant of negative pressure frame 341, and after suction head 321 sucked up the bag body, the bag body is attached on negative pressure frame 341, and belt 342 removes and drives the bag body and carries, and the guide blade can prevent the bag body to fall, and protection equipment operation is safe, realizes the guide effect to the bag body simultaneously for the bag body more laminates negative pressure frame 341, reduces the condition that the bag body falls.
In the production process, the bag stack 110 is placed on the conveying trough 312 and is located in the feeding area 140, the second supporting piece 520 jacks up the middle part of the bag stack 110, the cylinder drives the pre-pressing piece 510 to press the two bent sides of the bag stack 110 for multiple times, after the bag stack 110 in the material clamping area 314 is conveyed, the first supporting piece 420 falls down, the bag stack 110 pressed by the pre-pressing piece 510 enters the material clamping area 314 along with the movement of the material stirring rod 313 along the conveying trough 312 forwards, the sensor 410 senses the bag stack 110, the first supporting piece 420 jacks up the middle part of the bag stack 110, the lifting cylinder 330 drives the flattening piece 350 to press the bag stack 110, so that bag bodies are flattened, then the material sucking cylinder 322 drives the suction head 321 to move downwards to press the two sides of the ridge line 120 of the bag stack 110, so that the bag bodies are flattened further, the spring is compressed, the suction head 321 starts sucking air, the bag bodies are sucked upwards, the two sides 321 keep photographs of the bag bodies, the single bag bodies move upwards and the upper surface is flatly attached to the negative pressure conveying belt 340, the attaching degree of the negative pressure conveying belt 340 is improved, the bag bodies drop along with the negative pressure conveying belt 340, the production efficiency is improved, the prefabricated bag taking success rate is improved, and the prefabricated bag taking efficiency is improved.
While the preferred embodiment of the present application has been illustrated and described, the present application is not limited to the embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present application, and these equivalent modifications and substitutions are intended to be included in the scope of the present application as defined in the appended claims.
Claims (8)
1. A prefabricated bag flattening and conveying method is characterized in that: the method comprises the following steps:
Step 1, the bag body is provided with a ridge line (120), two sides of the bag body are bent upwards around the ridge line (120), and the bag body is stacked up and down to form a bag pile (110) and is moved into a clamping area (314);
step 1.1, after the sensor (410) senses that the bag stack (110) enters the clamping area (314), the first supporting piece (420) jacks up the middle part of the bottom surface of the bag stack (110);
step 2, the flattening piece (350) moves downwards and presses on the bag pile (110), and the bag body is reversely bent at two sides of the ridge line (120) under the action of the first supporting piece (420) which is raised, so that the bag body is unfolded and kept in a paved state;
step 3, the material sucking device moves downwards and adsorbs the uppermost bag body in the bag pile (110), and adsorption points are arranged at the bottom of the material sucking device at two sides of a ridge line (120) corresponding to the uppermost bag body;
Step 4, the flattening piece (350) moves upwards, and the material sucking device moves the unfolded bag body to the negative pressure conveying belt (340);
And 5, repeating the steps 2 to 4, transferring the bag bodies in the bag stacks (110) to the negative pressure conveying belt (340) one by one, and after the inductor (410) senses that the feeding of the bag stacks (110) in the clamping area (314) is finished, downwards moving the first supporting piece (420) to exit the clamping area (314).
2. A method of flattening and conveying a preformed bag according to claim 1, wherein: the extending direction of the flattening piece (350) is perpendicular to the ridge line (120) of the bag body.
3. A method of flattening and conveying a preformed bag according to claim 1, wherein: the feeding device (130) is sequentially divided into a plurality of feeding areas (140) along the conveying direction, bag stacks (110) are arranged in the feeding areas (140), and the feeding device (130) can transfer the bag stacks (110) from the feeding areas (140) to the clamping areas (314).
4. A method of flattening and conveying a preformed bag according to claim 3, wherein: the ridge line (120) of the bag body can be perpendicular or parallel to the conveying direction of the feeding device (130).
5. A method of flattening and conveying a preformed bag according to claim 1, wherein: the pre-press (510) presses down and periodically flattens the stack (110) of bags prior to entering the nip (314).
6. A preform bag flattening conveying apparatus adapted to the preform bag flattening conveying method according to any one of claims 1 to 5, characterized in that: comprising the following steps:
A negative pressure conveyer belt (340), the suction port of which faces downwards to the clamping area (314);
The feeding device (130) comprises a conveying belt (311), a conveying groove (312) and stirring rods (313), wherein the conveying belt (311) is positioned below the conveying groove (312), the conveying belt (311) is conveyed in the front-back direction, a plurality of stirring rods (313) are arranged on the conveying belt (311) at intervals, the stirring rods (313) extend upwards out of the bottom surface of the conveying groove (312), a feeding area (140) is formed between two adjacent stirring rods (313) and the conveying groove (312), and one feeding area (140) is positioned in the clamping area (314); an inductor (410) and a first supporting piece (420) are arranged on the bottom surface of the conveying groove (312), the first supporting piece (420) can penetrate out of the bottom surface of the conveying groove (312) upwards or retract downwards, and the inductor (410) and the first supporting piece (420) are positioned in the material clamping area (314);
A flattened member (350) located within the nip (314), the flattened member (350) being movable up and down;
the suction device comprises suction heads (321) capable of moving up and down, and the two suction heads (321) are respectively positioned at two sides of the negative pressure conveying belt (340).
7. A preform bag flattening conveying apparatus in accordance with claim 6, wherein: the suction device comprises a suction cylinder (322), a rack and a spring, wherein the suction cylinder (322) drives the rack up and down, a sliding column is arranged at the top of the suction head (321), the sliding column is connected to the rack in a sliding manner, the spring is sleeved on the sliding column, the upper end of the spring is propped against the rack, and the lower end of the spring is propped against the suction head (321).
8. A preform bag flattening conveying apparatus in accordance with claim 6, wherein: still include pre-pressing piece (510), conveyer belt (311) are adjacent two be equipped with second support piece (520) between driving lever (313), second support piece (520) upwards stretch out the bottom surface of conveyer trough (312), pre-pressing piece (510) are located the top of conveyer trough (312) and are located in addition to the pay-off district (140) in holding in the material district (314) arbitrary pay-off district (140), pre-pressing piece (510) can reciprocate.
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| CN202210925956.7A CN115367223B (en) | 2022-08-03 | 2022-08-03 | Prefabricated bag flattening and conveying method and equipment thereof |
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| CN202210925956.7A CN115367223B (en) | 2022-08-03 | 2022-08-03 | Prefabricated bag flattening and conveying method and equipment thereof |
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| CN115367223B true CN115367223B (en) | 2024-06-18 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203740197U (en) * | 2014-03-18 | 2014-07-30 | 营口金辰机械股份有限公司 | Package bag separating mechanism |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1505465A (en) * | 1966-10-10 | 1967-12-15 | Automatic bagging machine | |
| GB2028281B (en) * | 1978-08-18 | 1982-12-01 | Christy R Eng | Sack separating apparatus |
| CN102351055A (en) * | 2011-10-13 | 2012-02-15 | 武汉人天包装技术有限公司 | Automatic bag supply device |
| ITBO20120272A1 (en) * | 2012-05-17 | 2013-11-18 | Nuova Sima Spa | MACHINE FOR PACKING A TILE OR STACK OF TILES WITH ONE OR MORE CARTONED CARTONS |
| JP6364603B2 (en) * | 2014-09-10 | 2018-08-01 | ゼネラルパッカー株式会社 | Bag feeding device and packaging machine provided with the same |
| CN111348259A (en) * | 2020-04-17 | 2020-06-30 | 烟台凯博机械自动化设备有限公司 | Automatic bag opening device for packaging bags |
| CN212557025U (en) * | 2020-04-17 | 2021-02-19 | 烟台凯博机械自动化设备有限公司 | Automatic packaging production line for infusion apparatus |
| CN214455310U (en) * | 2020-12-23 | 2021-10-22 | 上海力持实业有限公司 | Paging equipment for packaging bag |
| CN216186450U (en) * | 2021-08-17 | 2022-04-05 | 深圳辉润智能设备制造有限公司 | Bag supply mechanism and integrated automatic bag feeding type packaging machine |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203740197U (en) * | 2014-03-18 | 2014-07-30 | 营口金辰机械股份有限公司 | Package bag separating mechanism |
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