CN105035422B - Folding mechanism and folding method for packaging box, packaging machine and packaging method - Google Patents

Folding mechanism and folding method for packaging box, packaging machine and packaging method Download PDF

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Publication number
CN105035422B
CN105035422B CN201510397091.1A CN201510397091A CN105035422B CN 105035422 B CN105035422 B CN 105035422B CN 201510397091 A CN201510397091 A CN 201510397091A CN 105035422 B CN105035422 B CN 105035422B
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China
Prior art keywords
folded
folding
suction
region
station
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CN201510397091.1A
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Chinese (zh)
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CN105035422A (en
Inventor
胡波
胡世龙
聂长春
雷云泽
邢普亮
阮家强
杨晓军
黎阳
贺思建
张跃进
黄杰
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China Tobacco Guizhou Industrial Co Ltd
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China Tobacco Guizhou Industrial Co Ltd
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Priority to CN201510397091.1A priority Critical patent/CN105035422B/en
Publication of CN105035422A publication Critical patent/CN105035422A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B47/00Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • B65B47/04Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of mechanical pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B49/00Devices for folding or bending wrappers around contents

Abstract

The present invention relates to a folding mechanism for a packaging box, a packaging machine, a folding method for a packaging box, and a packaging method. The folding mechanism for the packaging box comprises a folding station, a first suction piece, a first driving assembly, a rolling piece and a second driving assembly. The first driving component drives the first suction attachment to suck the first area to be folded and drives the first suction attachment to move upwards along an arc track to drive the first area to be folded to fold and drive the first suction attachment to release the first suction attachment after the first area to be folded is folded, and the second driving component drives the rolling piece to push the second area to be folded from bottom to top in a rolling mode on the second area to be folded and drive the rolling piece to move downwards after the second area to be folded is folded. The folding mechanism, the packaging machine, the folding method and the packaging method can automatically fold and do not damage the surface of the paperboard in the folding process.

Description

folding mechanism and folding method for packaging box, packaging machine and packaging method
Technical Field
The invention relates to the field of packaging, in particular to a folding mechanism for a packaging box, a packaging machine, a folding method for the packaging box and a packaging method.
background
Currently, packages having a paperboard thickness of no greater than 0.3mm can be folded and the contents packaged by automated packaging equipment. And the packing box with the thickness of the paperboard larger than 2mm usually cannot be folded and packed with the content by the existing automatic packing equipment because the packing box has certain rigidity, and can only be manually carried out. For example, currently, cigarette cartons have a cardboard thickness greater than 2 mm. Therefore, the prior art has the defects of low production efficiency, high labor cost and high risk of product quality control.
further, in the manual folding process in the prior art, or in the application of automated packaging equipment, there is often a phenomenon of damaging the surface of the cardboard, greatly affecting the product quality.
disclosure of Invention
technical problem to be solved
the invention aims to provide a folding mechanism for a packing box, a packing machine, a folding method for the packing box and a packing method, which can automatically fold and cannot damage the surface of a paperboard in the folding process.
(II) technical scheme
In order to solve the above technical problem, an aspect of the present invention provides a folding mechanism for a packing box, including: the folding station is used for placing the paper boards and folding the paper boards at the folding station; the first suction attachment is arranged corresponding to the first area to be folded of the paperboard; the first driving component is used for driving the first suction attachment to suck the first area to be folded and driving the first suction attachment to move upwards along an arc track so as to drive the first area to be folded and drive the first suction attachment to release the first suction attachment after the first area to be folded is folded; a rolling member disposed corresponding to a second region to be folded of the sheet; and the second driving component drives the rolling piece to push the second area to be folded from bottom to top in a rolling mode on the second area to be folded and drives the rolling piece to move downwards after the area to be folded is folded.
according to the invention, the first drive assembly comprises: fixing the sliding seat; the rotary suction arm is slidably arranged on the fixed sliding seat, and the first suction accessory is rotatably connected to the rotary suction arm; the sliding cylinder drives the rotary suction arm to slide on the fixed sliding seat; driving the first suction attachment to rotationally rotate the cylinder along an arc track relative to the rotating suction arm; a vacuum pump connected to the first suction fitting through an air tube.
according to the invention, the second drive assembly comprises: fixing a guide post seat and a folding cylinder; a guide post movably disposed in the fixed guide post seat; one end of the sliding block seat is connected with the rolling piece, and the other end of the sliding block seat is connected with the folding cylinder; the folding cylinder drives the sliding block seat and the guide post to move up and down along the fixed guide post seat so as to further bring the rolling piece to move up and down.
According to the invention, the first suction attachment is a suction cup.
according to the invention, a first suction attachment is arranged on each of the two opposite sides of the folding station; and one rolling member is respectively arranged on the other two opposite sides of the folding station.
According to the invention, the rolling elements are bearings.
According to the invention, it also comprises: a first pusher for pushing the sheet out of the folding station; and a flap disposed above the push-out path of the sheet to fold a third region of the sheet to be folded in the process of pushing out the sheet.
according to the invention, it also comprises: the folding station is positioned on the bearing bottom plate and corresponds to the through hole; and the negative pressure air suction device is positioned below the bearing bottom plate and corresponds to the through hole.
the invention provides, in a further aspect, a packaging machine comprising a folding mechanism for packages according to any one of the preceding claims.
According to the invention, it also comprises: the picking and conveying synchronous phase mechanism is provided with a second adsorption piece and at least one pair of synchronous toothed belts, the second adsorption piece and the folding station are positioned at two ends of the synchronous toothed belts, the second adsorption piece can transversely move corresponding to the synchronous toothed belts, and the synchronous toothed belts transversely correspond to the folding station; the paper warehouse mechanism is provided with a working station, a picking station positioned above the working station, at least two material waiting stations arranged transversely relative to the working station, at least two paper warehouse frames capable of moving between the material waiting stations and the working station, and a lifting assembly for lifting the paper boards in the paper warehouse frames positioned at the working station to the picking station; the tray opening of the second adsorption piece faces downwards to enable the second adsorption piece to adsorb the paper board positioned at the picking station and lift the paper board to a position corresponding to the transverse direction of the synchronous toothed belt.
in a further aspect, the present invention provides a folding method for a packing box, comprising: step 1, placing a paperboard on a folding station; step 2, performing step 2.1 and step 2.2 simultaneously, or performing one of step 2.1 and step 2.2 first and then performing the other; step 2.1, performing the following steps 2.1.1 to 2.1.3: step 2.1.1, sucking a first area to be folded of the paperboard through a first sucking part; step 2.1.2, driving the first suction accessory to move upwards in an arc track to fold the first area to be folded; step 2.1.3, driving the first suction accessory to release the first area to be folded; step 2.2, performing the following steps 2.2.1 and 2.2.2: step 2.2.1, driving the rolling piece to roll on the second area to be folded to push the second area to be folded of the paper board from bottom to top; and 2.2.2, driving the rolling member to move downwards.
According to the invention, in step 2.1: before step 2.1.1 is carried out, the sliding cylinder drives the rotary suction arm and the first suction attachment rotatably connected to the rotary suction arm to move from the first initial position to the paper board until the first suction attachment is positioned above the first area to be folded; in step 2.1.1, starting a vacuum pump connected to a first suction accessory through an air pipe to enable the first suction accessory to suck a first region to be folded of the paperboard; in step 2.1.2, the folding cylinder drives the first suction attachment to move upwards along an arc track relative to the rotating suction arm; in step 2.1.3, the vacuum pump is stopped to drive the first suction attachment to release the first area to be folded; after step 2.1.3 is performed, the sliding cylinder drives the rotating suction arm and the first suction attachment to move away from the cardboard sheet up to the first initial position.
according to the invention, in step 2.2: in step 2.2.1, the rolling member is driven by the folding air cylinder to push the second area to be folded of the paperboard from bottom to top in a rolling manner on the second area to be folded from the second initial position; in step 2.2.2: the rolling member is driven to move downwards by the folding air cylinder until reaching a second initial position.
According to the invention, in step 2.1, two opposite first areas to be folded of the cardboard are folded up by two first suction attachments arranged opposite one another; in step 2.2, two opposite second areas to be folded of the paperboard are folded up by two rolling members which are arranged oppositely; the two folded first areas to be folded and the two folded second areas to be folded enclose a cavity for containing contents.
according to the invention, in step 1: the folding station is located the bearing bottom plate and is corresponding to the through-hole on the bearing bottom plate, after placing the cardboard on the folding station, open the negative pressure device that induced drafts and carry out the negative pressure to the through-hole and induced draft in order to inhale the cardboard admittedly on the bearing bottom plate.
The present invention provides, in a further aspect, a method of packaging comprising any of the folding methods for a package described above.
According to the invention, the folded first region to be folded and the folded second region to be folded together enclose a cavity for accommodating contents, and after step 2 is performed, the following steps are performed: step 3, filling contents in the cavity; and 4, pushing the paper board out of the folding station, wherein a baffle is arranged on a pushing path of the paper board to fold a third to-be-folded area of the paper board, the third to-be-folded area is connected to the second to-be-folded area, and the folded third to-be-folded area covers the cavity.
According to the invention, in step 1: the folding station is positioned on the bearing bottom plate and corresponds to the through hole on the bearing bottom plate, and after the paper board is placed on the folding station, the negative pressure air suction device is started to perform negative pressure air suction on the through hole so as to suck and fix the paper board on the bearing bottom plate; in step 4: before the paper board is pushed out, the negative pressure air suction device stops working, and the paper board is released from the supporting bottom plate.
(III) advantageous effects
the technical scheme of the invention has the following advantages:
the folding mechanism for the packing box comprises a folding station for placing the paper board and folding the paper board at the folding station; the first suction attachment is arranged corresponding to the first area to be folded of the paperboard; the first driving component is used for driving the first suction accessory to suck the first area to be folded and driving the first suction accessory to move upwards along an arc track so as to drive the first area to be folded, and driving the first suction accessory to release the first suction accessory after the first area to be folded is folded; a rolling member disposed corresponding to a second region to be folded of the sheet; and the second driving component drives the rolling piece to push the second area to be folded from bottom to top in a rolling mode on the second area to be folded and drives the rolling piece to move downwards after the area to be folded is folded. Therefore, the first area to be folded of the paper board is folded through the first adsorption piece, the second area to be folded is pushed to be folded upwards through the rolling piece, and the rolling piece rolls on the surface of the second area to be folded, so that the paper board can be folded automatically, and the damage to the surfaces of the first area to be folded and the second area to be folded of the paper board is avoided.
the folding mechanism for the packing box further comprises a first pushing piece for pushing the paper board out of the folding station and a baffle plate, wherein the baffle plate is arranged above the pushing path of the paper board so as to fold the third area to be folded of the paper board in the process of pushing the paper board out, so that the folding of the third area to be folded is completed while the paper board is pushed out, and the folding mechanism is convenient and efficient.
The packaging machine of the present invention comprises the folding mechanism for packets according to any one of the preceding claims, with all the advantages of the folding mechanism for packets of the present invention.
The packaging machine comprises a picking and conveying synchronous phase mechanism, wherein the picking and conveying synchronous phase mechanism is provided with a second adsorption piece and at least one pair of synchronous toothed belts, the second adsorption piece and a folding station are positioned at two ends of the synchronous toothed belts, the second adsorption piece can transversely move corresponding to the synchronous toothed belts, and the synchronous toothed belts transversely correspond to the folding station. Therefore, the second adsorption piece can suck the paper board and transversely convey the paper board to the synchronous toothed belt, and the synchronous toothed belt transversely conveys the paper board to the folding station. In addition, the packaging machine of the invention comprises a pick-up device and a conveying and supplementing mechanism, wherein the conveying and supplementing mechanism is provided with a third pushing piece positioned between the synchronous toothed belt and the folding station, a transverse driving piece driving the third pushing piece to move transversely, and a vertical driving piece driving the third pushing piece to move vertically. Thus, when the paper board leaves the synchronous toothed belt but is not accurately positioned on the folding station, the paper board can be transversely pushed by the third pushing piece to be accurately positioned on the folding station. The packaging machine also comprises a paper warehouse mechanism, wherein the paper warehouse mechanism is provided with a working station, a picking station positioned above the working station, at least two material waiting stations which are transversely arranged relative to the working station, at least two paper warehouse frames which can move between the material waiting stations and the working station, and a lifting component which lifts the paper boards in the paper warehouse frames positioned at the working station to the picking station; the second adsorption piece can adsorb the paper board positioned at the picking station and lift the paper board to a position corresponding to the transverse direction of the synchronous toothed belt. Therefore, on one hand, when one paper warehouse rack is positioned at the working station, the other paper warehouse racks can supplement the paperboards, and the production efficiency is improved. On the other hand, the second adsorption piece sucks the paperboard at the picking station and lifts the paperboard to effectively separate the paperboard from the paperboard below the second adsorption piece, so that adhesion and damage caused by relative transverse movement of the paperboard and the paperboard are avoided. In addition, the opening of the second adsorption part faces downwards, and when the second adsorption part adsorbs the uppermost paperboard and drives the uppermost paperboard to move upwards, the lower paperboard is easy to separate from the uppermost paperboard due to self gravity.
the folding method for the packing box of the invention comprises the following steps: step 1, placing a paperboard on a folding station; step 2, performing step 2.1 and step 2.2 simultaneously, or performing one of step 2.1 and step 2.2 first and then performing the other; step 2.1, performing the following steps 2.1.1 to 2.1.3: step 2.1.1, sucking a first area to be folded of the paperboard through a first sucking part; step 2.1.2, driving the first suction accessory to move upwards in an arc track to fold the first area to be folded; step 2.1.3, driving the first suction accessory to release the first area to be folded; step 2.2, performing the following steps 2.2.1 and 2.2.2: step 2.2.1, driving the rolling piece to roll on the second area to be folded to push the second area to be folded of the paper board from bottom to top; and 2.2.2, driving the rolling member to move downwards. Therefore, the first area to be folded of the paper board is folded through the first adsorption piece, the second area to be folded is pushed to be folded upwards through the rolling piece, and the rolling piece rolls on the surface of the second area to be folded, so that the paper board can be folded automatically, and the damage to the surfaces of the first area to be folded and the second area to be folded of the paper board is avoided.
the folding method for the packing box comprises the steps that two opposite first areas to be folded of a paper board are folded through two first suction accessories which are arranged oppositely; two opposite second areas to be folded of the paper board are folded through two rolling pieces which are arranged oppositely; the two folded first areas to be folded and the two folded second areas to be folded enclose a cavity for containing contents. From this, through first absorption piece first waiting folding region of turning up and through the second absorption piece second waiting folding region of turning up, just formed the cavity that is used for holding the content, convenient high efficiency.
The packaging method of the present invention, including the folding method for a package according to any one of the above, has all the advantages of the folding method for a package according to the above.
In the packaging method of the present invention, the folded first region to be folded and the folded second region to be folded together define a cavity for containing the contents, and after step 2 is performed, the following steps are performed: step 3, filling contents in the cavity; and 4, pushing the paper board out of the folding station, wherein a baffle is arranged on a pushing path of the paper board to fold a third to-be-folded area of the paper board, the third to-be-folded area is connected to the second to-be-folded area, and the folded third to-be-folded area covers the cavity. Therefore, the folding of the third area to be folded is completed while the paperboard is pushed out, and the folding device is convenient and efficient.
Drawings
Figure 1 is a schematic view of one embodiment of a folding object (cardboard) of a folding mechanism for packages according to the invention;
FIGS. 2 and 3 are schematic views of a first suction attachment and a first drive assembly of one embodiment of a folding mechanism for a package of the present invention in two planes of projection;
FIGS. 4 and 5 are schematic views of the rolling members and the second drive assembly of the folding mechanism of FIG. 2 in two planes of projection;
FIG. 6 is a schematic view of the state of the sheet after folding the first and second areas to be folded by the first suction attachment and the rolling member of FIGS. 3-5;
Fig. 7 is a schematic view of an embodiment of the packaging machine of the present invention, including the components shown in fig. 2-5;
Fig. 8-14 show schematic views of a folding process using a packaging machine.
In the figure: 1: a folding mechanism; 11: folding stations; 12: a first suction attachment; 13: a first drive assembly; 131: fixing the sliding seat; 132: rotating the suction arm; 133: a slide cylinder; 134: a rotating cylinder; 14: a rolling member; 15: a second drive assembly; 151: fixing the guide post seat; 152: a folding cylinder; 153: a guide post; 154: a slider seat; 2: a pick-up and delivery synchronous phase mechanism; 21: a second adsorption member; 22: a synchronous toothed belt; 3: a paper magazine mechanism; 31: a working station; 32: a picking station; 33: a material waiting station; 34: a paper storage rack; 4: a conveying and supplementing mechanism; 41: a third pusher; 5: a content pressing mechanism; 51: a second pusher member; 52: an elastic guide channel; 53: a filling station; 6: the contents; s: a paperboard; s1: a first region to be folded; s2: a second region to be folded; s3: a third region to be folded; s4: a cassette bottom region.
Detailed Description
in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. In the present specification, the terms "upper", "lower" and "lateral" refer to the orientation in the drawings, which is the orientation used in actual production.
In the embodiments of the folding mechanism 1 for packs, the packaging machine, the folding method for packs, and the packaging method described below, the cardboard sheet S of the cigarette carton shown in fig. 1 is folded. The thickness of the paperboard S is more than 0.3 mm. The sheet S includes two first regions to be folded S1, two second regions to be folded S2, a third region to be folded S3 connected to one second region to be folded S2, and a box bottom region S4 between the two second regions to be folded S2, and when the two first regions to be folded S1 and the two second regions to be folded S2 are folded, a cavity for containing the content 6 is formed. In this embodiment, the content 6 is a cigarette packet, specifically 10 cigarette packets in two layers. When the contents 6 are loaded into the cavity, the third area S3 is folded to cover the cavity, i.e. the box of cigarettes in the cavity. Of course, the invention is not limited thereto, and in alternative embodiments, the sheet S may be any flat pack, and the contents 6 are not limited to cigarette packs.
in particular, with reference to fig. 2 to 5, one embodiment of the folding mechanism 1 for packages of the present invention, the folding mechanism 1 comprises a folding station 11, a first suction attachment 12, a first drive assembly, a rolling member 14 and a second drive assembly 15. Wherein the folding station 11 is used for placing the sheets S and folding the sheets S at this station. The first suction attachment 12 corresponds to the first region to be folded S1 of the sheet S, and the first driving assembly drives the first suction attachment 12 to suck the first region to be folded S1 and drives the first suction attachment 12 to move upward along an arc trajectory to fold the first region to be folded S1, and drives the first suction attachment 12 to release the first region to be folded S1 after the first region to be folded S1 is folded, i.e., drives the first suction attachment 12 not to suck the first region to be folded S1 any more. It is understood that "the first suction attachment 12 corresponds to the first region to be folded S1 of the sheet S" means that the first suction attachment 12 corresponds to the first region to be folded S1 in such a manner as to be able to suck the first region to be folded S1 and bring it into rotation. The rolling member 14 is disposed corresponding to the second region to be folded S2 of the sheet S, and the second driving assembly 15 drives the rolling member 14 to push the second region to be folded S2 from bottom to top to fold up in a rolling manner on the second region to be folded S2, in other words, the rolling member 14 rolls on the sheet S while pushing the second region to be folded S2 from bottom to top to fold up. And, the second driving assembly 15 drives the rolling member 14 to move downward after the second to-be-folded region S2 is folded up, so as to make way for the sheet S to be pushed out of the folding station 11 later, and facilitate the folding work for the next sheet S. It is understood that "the roller 14 is disposed corresponding to the second region to be folded S2 of the sheet S" means that the roller 14 corresponds to the second region to be folded S2 in such a manner that the second region to be folded S2 can be pushed from below to above to be folded.
accordingly, the first suction member 12 folds the first region to be folded S1 of the sheet S, and the rolling member 14 rolls on the surface of the second region to be folded S2 while pushing the second region to be folded S2 to fold upward, so that the sheet S can be automatically folded, and the damage to the surfaces of the first and second regions to be folded S2 of the sheet S can be prevented.
with further reference to fig. 2-5, in this embodiment, the first suction attachment is a suction cup. The first driving assembly includes a fixed slider 131, a rotary suction arm 132, a slide cylinder 133, a rotary cylinder 134, a vacuum pump, and an air pipe. The fixed slider 131 is stationary in production, the rotary suction arm 132 is slidably disposed on the fixed slider 131, and the first suction member 12 is rotatably attached to the rotary suction arm 132. Specifically, the rotary suction arm 132 is slidable between a first initial position where the rotary suction arm 132 and the first suction attachment 12 are located at the side of the first region to be folded S1 to give way for the sheet S to enter the folded position and a first working position. The first operating position is a position in which the first suction attachment 12 is positioned above the first region to be folded S1. The sliding cylinder 133 drives the rotary suction arm 132 to slide on the fixed slide 131 between a first initial position and a first working position, thereby moving the first suction attachment 12 laterally. The vacuum pump is connected to the first suction attachment 12 through an air pipe, and after the rotary suction arm 132 and the first suction attachment 12 are located at the first operation position, the vacuum pump is started to drive the first suction attachment 12 to suck the first region to be folded S1. The rotating cylinder 134 is connected to the first suction attachment 12, and the rotating cylinder 134 drives the first suction attachment 12 to rotate along an arc track relative to the rotating suction arm 132, so that the first suction attachment 12 moves upwards along the arc track to bring the first region to be folded S1 to be folded, and preferably, the first region to be folded S1 is folded by 90 °. After the first region to be folded S1 is folded, the vacuum pump stops operating, and the first suction attachment 12 releases the first folding region. Then, the sliding cylinder 133 drives the rotary suction arm 132 to return to the first initial position from the first working position, and the first suction member 12 moves to the first initial position to give way for the next carton to be pushed out of the folding station 11. Subsequently, the rotary cylinder 134 rotates the first suction member 12 back downward to prepare for folding the first region to be folded S1 of the next sheet S.
In summary, in the present embodiment, the first suction attachment 12 is driven by the vacuum pump and the suction pipe to suck the first region to be folded S1 and release the first region to be folded S1, the first suction attachment 12 is driven by the rotary cylinder 134 to move upwards along an arc track to drive the first region to be folded S1 to fold, and the first suction attachment 12 is driven by the sliding cylinder 133 and the rotary suction arm 132 to give way for loading and unloading of the sheets S. Of course, in alternative embodiments, those skilled in the art may construct the first drive assembly in other known ways, and the invention is not limited thereto.
with further reference to fig. 2-5, in this embodiment, the second drive assembly 15 includes a stationary guide post holder, a folding cylinder, a guide post 153, and a slide holder 154. The fixed guide post seat is fixed in production. The guide post 153 is movably disposed in a fixed guide post holder, and the slider holder 154 is coupled to the guide post 153. The slider housing 154 has one end connected to the roller 14 (i.e., the roller 14 is rotatably connected to one end of the slider housing 154) and the other end connected to the folding cylinder. The folding cylinder drives the slider holder 154 and the guide post 153 up and down along the fixed guide post holder to further bring up and down the rolling member 14. The folding cylinder thus drives the roller 14 between the second initial position and the second work position. In the first initial position, the rolling member 14 is located below the sheet S, and in the second working position, the rolling member 14 folds the second region to be folded S2 of the sheet S by 90 °. In addition, the guide post is mounted in the slider seat by an axial bearing, and during operation, the guide post is relatively stationary with respect to the slider seat, while during mounting, the guide post is movable with respect to the slider seat.
In summary, in the present embodiment, the slider holder 154 is driven by the folding cylinder to move up and down to drive the second driving assembly 15, which drives the roller 14 to roll on the second region to be folded S2 to push the second region to be folded S2 from bottom to top and drives the roller 14 to move down after the second region to be folded S2 is folded. The guide posts 153 and the fixed post holder function as guides.
Preferably, the rolling elements 14 are bearings. Of course, the present invention is not limited thereto, and in other alternative embodiments, the rolling member 14 may be any member capable of rolling on the surface of the sheet S.
specifically, corresponding to the structure of the sheet S in fig. 1, that is, the number and positions of the first and second areas to be folded S1 and S2 of the sheet S in fig. 1, respectively, one first suction member 12 is provided on opposite sides of the folding station 11, respectively, and the rolling members 14 are provided on opposite other sides of the folding station 11, respectively, wherein 2 rolling members 14 are provided on each side. Also, the slider holder 154 has four legs, and each roller 14 is attached to the protruding end of one leg, and the four rollers 14 are simultaneously moved by the slider holder 154. Of course, in alternative embodiments, one slider seat 154 may be provided for each rolling member 14.
furthermore, in the present embodiment, the first region to be folded S1 is the short side flap of the barrel, and the second region to be folded S2 is the long side flap of the barrel. Since the first region to be folded S1 is initially located at the upper portion of the box bottom region S4, the first suction attachment 12 rotates the first region to be folded S1 upward and outward. Of course, when the other packing box is folded, if the first region to be folded S1 is connected to the edge of the box bottom and is located laterally outside the box bottom, the first suction attachment 12 carries the first region to be folded S1 to be turned upward and folded inward. It can be understood that the first suction attachment 12 rotates the first region to be folded S1 in a direction to enclose the cavity for containing the contents 6. Further, for the carton in the unfolded state in which the initial state of the first region to be folded S1 is located at the upper part of the bottom region S4, it is more convenient and advantageous to adopt the manner in which the first suction attachment 12 causes the first region to be folded S1 to be turned and folded upward and outward.
further, in the present embodiment, the folding mechanism 1 for a packing box further includes a first pushing member and a shutter. Wherein the first pusher is used to push the sheet S, which has been folded up in the first region to be folded S1 and the second region to be folded S2, out of the folding station 11. A flap is provided above the push-out path of the sheet S to fold the third to-be-folded region S3 of the sheet S during the pushing-out of the sheet S. Therefore, the folding of the third area to be folded S3 is completed while the paper board S is pushed out, and the folding is convenient and efficient. Wherein the first pushing member is a component known to those skilled in the art, such as a telescopic cylinder.
in addition, in this embodiment, the folding mechanism 1 further comprises a support base and a fixing device for fixing the bottom region S4 of the sheet S located at the folding station 11, which prevents the bottom region S4 of the sheet S from folding up with the first and second regions S2 to be folded when folded.
specifically to this embodiment, the fixing means comprises a negative pressure suction device. The bearing bottom plate has the through-hole, and folding station 11 is located the bearing bottom plate and corresponds to the through-hole, and the negative pressure device that induced drafts is located the bearing bottom plate below and corresponds to the through-hole. Therefore, when the paperboard S is positioned at the folding station 11, negative pressure air suction is carried out at the through hole through the negative pressure air suction device, the box bottom of the paperboard S is adsorbed on the bearing bottom plate, and the box bottom area S4 of the paperboard S is not taken up when the first area S1 to be folded and the second area S2 to be folded are folded. Of course, the invention is not limited thereto and in alternative embodiments the sheets S may be held in other ways, for example by mechanical means pressing the bottom region S4 of the sheets S against the supporting bottom.
in addition, the "rotary cylinder", "sliding cylinder" and "folding cylinder" used in the present embodiment are all cylinders that can be selected from the prior art by those skilled in the art according to the above descriptions of their respective functions.
in summary, according to the above description of the folding mechanism 1 for the packaging box, the step of folding the sheet S using the folding mechanism 1 is further briefly described:
firstly, a cardboard sheet S is placed on a folding station 11 of the folding mechanism 1;
secondly, starting a negative pressure air suction device to fix the box bottom area S4 of the paperboard S on the supporting bottom plate;
then, the first driving assembly drives the first suction attachment 12 to suck the first region to be folded S1 of the sheet S and drives the first suction attachment 12 to move upward in an arc track to fold the first region to be folded S1, specifically, the sliding cylinder 133 drives the rotary suction arm 132 to move from the first initial position to the first working position (at this time, the first suction attachment 12 is located above the first region to be folded S1), the vacuum pump is started, the first suction attachment 12 sucks the first region to be folded S1, the rotary cylinder 134 drives the first suction attachment 12 to rotate upward, the first suction attachment 12 drives the first region to be folded S1 to fold, the vacuum pump stops working, and the suction force of the first suction attachment 12 to the first region to be folded S1 is released;
Then, the second driving assembly 15 drives the rolling member 14 to roll on the second to-be-folded region S2 to push the second to-be-folded region S2 of the sheet S from bottom to top to fold, specifically, the folding cylinder drives the slider seat 154 to move upward, so that the rolling member 14 starts to move upward from the second initial position, and the rolling member 14 pushes the second to-be-folded region S2 of the sheet S to fold upward while sliding on the surface of the second to-be-folded region S2 until the rolling member 14 moves upward to the second working position;
to this end, the first region to be folded S1 and the second region to be folded S2 define a cavity for containing the contents 6 (see the illustration in fig. 6). The roller 14 can then be driven back down to the second initial position. Of course, the first suction attachment 12 can release the first region to be folded S1 at any appropriate time after the folding work is completed, and the rolling member 14 can move downward at any appropriate time after the folding work is completed.
with reference to fig. 7, one embodiment of the packaging machine of the invention, comprising the folding mechanism 1 for packages shown in fig. 2-5, has all the advantages of the folding mechanism 1 for packages of the invention.
further, in this embodiment, the packaging machine further includes a content 6 pressing mechanism 5, the content 6 pressing mechanism 5 has a second pushing member 51 and an elastic guide path 52, the second pushing member 51 and the elastic guide path 52 are located above the folding station 11, the second pushing member 51 presses the content 6 into the paper sheet S, i.e., into the cavity defined by the folded first region to be folded S1 and the second region to be folded S2, and the elastic guide path 52 clamps the content 6 during the pressing process. To sum up, the second pushing member 51 pushes the contents 6 to move downward in the elastic guide channel 52, and the contents 6 are gripped by the elastic guide channel 52. In this embodiment, the content 6 is a double layer of 10 packets, which are clamped by the elastic guide channel 52, so that the 10 packets are compact and loose, and can be compactly placed in the cavity for subsequent packing. Specifically, the elastic guide channel 52 is composed of an outer plate, an inner plate, and a spring supported therebetween. In the present embodiment, the outer plate is a shroud plate including four inner plates, and every two adjacent inner plates are arranged at a right angle, each inner plate corresponds to one side inner wall of the outer plate, and is supported on the outer plate by a spring, whereby the elasticity of the elastic guide channel 52 is constituted by the elasticity of the spring. Of course, the invention is not limited thereto, and in other alternative embodiments, the flexible guide channel 52 may be constructed of a flexible material, or of an inflatable bag, as long as it can effect compression of the contents 6.
In addition, the packaging machine further comprises a pick-up and transport synchronous phase mechanism 2, the pick-up and transport synchronous phase mechanism 2 has a second suction member 21 (preferably a suction cup) and at least one pair of synchronous toothed belts 22, the second suction member 21 and the folding station 11 are located at both ends of the synchronous toothed belts 22, the second suction member 21 can move transversely corresponding to the synchronous toothed belts 22, so that the second suction member 21 sucks the paper sheet S and then moves transversely to convey the paper sheet S into the synchronous toothed belts 22, and the synchronous toothed belts 22 transversely correspond to the folding station 11, so that the synchronous toothed belts 22 can further convey the paper sheet S to the folding station 11. In the present embodiment, a pair of timing belts 22 are provided. Of course, in other alternative embodiments, a plurality of pairs of timing belts 22 may be provided to be connected in series to form the conveyor belt of the sheets S. The second adsorption part 21 and the synchronous toothed belt 22 are matched with the paper conveying plate S, so that the paper conveying plate S is prevented from shifting in the conveying process.
Further, the packaging machine further comprises a conveying and supplementing mechanism 4, and the conveying and supplementing mechanism 4 is provided with a third pushing piece 41, a transverse driving piece and a vertical driving piece. The third pushing piece 41 is located between the synchronous toothed belt 22 and the folding station 11, the transverse driving piece drives the third pushing piece 41 to move transversely, and the vertical driving piece drives the third pushing piece 41 to move vertically. Thus, when the sheet S leaves the timing belt 22 but is not correctly positioned at the folding station 11, the sheet S is pushed laterally by the third pusher 41 to be correctly positioned at the folding station 11. The "accurate positioning at the folding station 11" is the position where the first suction attachment 12 is aligned with the first region to be folded S1 and the rolling member 14 is aligned with the second region to be folded S2. Further, in this embodiment, since the content 6 is pressed into the folding station 11, the "positioning accuracy in the folding station 11" should be further satisfied to allow the content 6 to accurately fall into the cavity.
preferably, the transverse driving part is a horizontal limiting cylinder, and the vertical driving part is a lifting reciprocating cylinder. The piston rod of the lifting reciprocating cylinder is connected with the third pushing piece 41 so as to drive the third pushing piece 41 to vertically reciprocate. The piston rod of the horizontal limiting cylinder is connected with the lifting reciprocating cylinder to drive the lifting reciprocating cylinder to move transversely, and further drive the third pushing piece 41 to move transversely.
Additionally, the utility model discloses in, packagine machine still includes paper storehouse mechanism 3, and paper storehouse mechanism 3 has work station 31, picks up station 32, two at least wait to expect station 33, two at least paper storehouse framves 34, hoisting component. Wherein, the picking station 32 is located above the working station 31, and at least two material waiting stations 33 are transversely arranged relative to the working station 31, in this embodiment, the at least two material waiting stations 33 are oppositely arranged at two sides of the working station 31. The magazine rack 34 is movable between the waiting station 33 and the working station 31, preferably with a slide rail mounted between the waiting station 33 and the working station 31, the movement of the magazine rack 34 between the waiting station 33 and the working station 31 being effected by movement on the slide rail. The lifting assembly is capable of lifting the sheets S located in the magazine rack 34 of the work station 31 to the pick-up station 32. The second suction member 21 can move downward and suck the sheet S at the pickup station 32, and the second suction member 21 can lift the sheet S to a position laterally corresponding to the timing belt 22, and then move laterally to feed the sheet S to the timing belt 22. Therefore, on one hand, when one paper warehouse rack 34 is positioned at the working station 31, the other paper warehouse racks 34 can supplement the paper boards S, and the production efficiency is improved. On the other hand, the second suction member 21 sucks and lifts the sheet S located at the pick-up station 32 to effectively separate the sheet S from the sheet S below the sheet S, thereby preventing the sheet S from being stuck and damaged due to relative lateral movement. Wherein, when there is no paperboard S in the rack of paperboards S at the working station 31, the apparatus gives a stop instruction through the detection signal, i.e., stops the second absorption member 21 from going down. The cardboard S shelf located at the working station 31 is then manually or automatically moved to the waiting station 33, another cardboard S shelf, which has been replenished with cardboard S at the waiting station 33, is manually or automatically moved to the working station 31, and the apparatus is started, i.e. the second suction member 21 is started to go down.
Further, in the present embodiment, the second suction member 21 has its mouth facing downward so as to be able to suck the sheet S at the pickup station 32 and lift it to a position laterally corresponding to the timing belt 22. When the second suction member 21 sucks the uppermost sheet S and moves upward, the lower sheet S is easily separated from the uppermost sheet S due to its own weight.
preferably, the lifting assembly comprises a motor and a screw rod, and the motor drives the screw rod to drive the paperboard S to be lifted from bottom to top. The second adsorption part 21 is driven by the cylinder to move up and down, driven by the cam mechanism to move horizontally, and used for sucking the paper board S through the vacuum pump.
further, a mechanical overload and detection switch is provided in the pick-and-feed synchronous phase mechanism 2 to prevent an accident caused by the deformation and jamming of the sheet S.
In summary, according to the above description of the structure of the packaging machine of the present embodiment, the operation of the packaging machine is further described:
Moving the paper stock shelf 34 to a material waiting station 33 to replenish the paper boards S, moving the paper stock shelf to a working station 31 after the replenishment is finished, and replenishing the paper boards S on another material waiting station 33 by another paper stock shelf 34 in the process of executing the following steps (see fig. 9);
The lifting assembly feeds the uppermost sheet S stacked in the magazine frame 34 of the work station 31 to the pickup station 32 (refer to fig. 10);
The second suction member 21 sucks the uppermost sheet S and moves upward, the uppermost sheet S is separated from the lower sheet S, the second suction member 21 changes the lateral movement to a position laterally corresponding to the timing belt 22 when lifting the sheet S, and the sheet S is sent to the timing belt 22 (see fig. 11);
The synchronous cog belt 22 further conveys the paper sheet S to the working station 31, and judges whether the paper sheet S is accurately positioned on the working station 31, if not, the second pushing member 51 is adopted to push the paper sheet S to be accurately positioned on the working station 31 (refer to fig. 12);
after the paper board S is accurately positioned on the working station 31, the negative pressure air suction device is started to adsorb the box bottom of the paper board S on the supporting bottom plate, the two first suction parts 12 suck the two first areas to be folded S1, and then the two first suction parts 12 respectively move upwards in an arc track to fold the first areas to be folded S1 upwards and outwards;
The two rolling members 14 are moved upward to fold up the two first regions to be folded S1, so that a cavity for containing the content 6 is formed (refer to fig. 13);
second pusher 51 presses contents 6 into the cavity (see fig. 14);
the sheet S, which has now been partially folded and contains the contents 6, is pushed out of the folded position by means of the first push member, and during the pushing out the flap folds the third region to be folded S3 inwards, the third region to be folded S3 covering the cavity, i.e. the contents 6.
one embodiment of the folding method for a package of the present invention comprises the steps of:
Step 1, placing a paperboard S on a folding station 11;
Step 2, performing step 2.1 and step 2.2 simultaneously, or performing one of step 2.1 and step 2.2 first and then performing the other;
Step 2.1, performing the following steps 2.1.1 to 2.1.3:
Step 2.1.1, sucking a first area to be folded S1 of the paperboard S through the first suction part 12;
Step 2.1.2, driving the first suction attachment 12 to move upwards in an arc track to fold up the first area to be folded S1;
Step 2.1.3, driving the first suction attachment 12 to release the first area to be folded S1;
step 2.2, performing the following steps 2.2.1 and 2.2.2:
step 2.2.1, driving the rolling member 14 to roll on the second to-be-folded region S2 to push the second to-be-folded region S2 of the sheet S from bottom to top to be folded;
Step 2.2.2, the rolling member 14 is driven to move downwards.
thus, the first region to be folded S1 is folded by the first suction member 12 and the second region to be folded S2 is folded by the second suction member 21, so that a cavity for accommodating the contents 6 is formed, which is convenient and efficient.
in this embodiment, step 2.1 is performed first, and then step 2.2 is performed.
in this embodiment, folding station is located the bearing bottom plate and corresponding to the through-hole on the bearing bottom plate, places cardboard S after on folding station, opens the negative pressure device that induced drafts and carry out the negative pressure to the through-hole and induced draft in order to inhale cardboard S admittedly on the bearing bottom plate.
In step 2.1:
Before step 2.1.1 is performed, the sliding cylinder 133 drives the rotary suction arm 132 and the first suction attachment 12 rotatably connected to the rotary suction arm 132 to move from the first initial position toward the sheet S until the first suction attachment 12 is located above the first region to be folded S1;
In step 2.1.1, starting a vacuum pump connected to the first suction attachment 12 through an air pipe, so that the first suction attachment 12 sucks the first region to be folded S1 of the paperboard S;
In step 2.1.2, the folding cylinder drives the first suction attachment 12 upward in an arcuate path relative to the rotating suction arm 132;
in step 2.1.3, the vacuum pump operation is stopped to drive the first suction attachment 12 to release the first area to be folded S1;
After step 2.1.3 is performed, the slide cylinder 133 drives the rotary suction arm 132 and the first suction attachment 12 to move away from the sheet S up to the first initial position.
In step 2.2:
in step 2.2.1, the rolling member 14 is driven by the folding cylinder to fold up the second to-be-folded region S2 of the sheet S from the second initial position in such a manner as to roll over the second to-be-folded region S2;
In step 2.2.2: the rolling member 14 is driven by the folding cylinder to move downwards up to said second initial position.
Furthermore, in step 2.1, the two first areas to be folded S1 of the sheet S are folded up by the two first suction attachments 12 arranged opposite one another; in step 2.2, two opposite second areas to be folded S2 of the sheet S are folded by two rolling members 14 arranged opposite to each other; wherein the two folded first regions to be folded S1 and the two folded second regions to be folded S2 together enclose a cavity for accommodating the contents 6.
In this embodiment, the folding method uses the folding mechanism 1 described above.
an embodiment of the packaging method of the invention, comprising the folding method for packages described above, has all the advantages of the folding method for packages described above. In this embodiment, the packaging method uses the packaging machine.
specifically, in the present embodiment, before step 1 is performed, the following steps are performed:
step a1, placing the sheets S on the pick-up station 32;
step A2, sucking the paperboard S through the second adsorption piece 21;
step A3, driving the second absorption piece 21 to move upwards to drive the paper board S to rise to transversely correspond to the pair of synchronous toothed belts 22;
A step a4 of conveying the sheet S into the pair of timing belts 22 by driving the second suction member 21 to move laterally;
step A5, transversely conveying the paper sheets S to the folding station 11 through the pair of synchronous toothed belts 22 and separating the pair of synchronous toothed belts 22;
Step A6, judging whether the paperboard S is accurately positioned on the folding station 11;
Step a7, if the sheet S is correctly positioned on the folding station 11, step 1 is performed, if the sheet S is not correctly positioned on the folding station 11, the sheet S is pushed by the third pusher 41 to be correctly positioned on the folding station 11 and then step 1 is performed.
Thus, when the sheet S leaves the timing belt 22 but is not correctly positioned at the folding station 11, the sheet S is pushed laterally by the third pusher 41 to be correctly positioned at the folding station 11. The "accurate positioning at the folding station 11" is the position where the first suction attachment 12 is aligned with the first region to be folded S1 and the rolling member 14 is aligned with the second region to be folded S2. Further, in this embodiment, since the content 6 is pressed into the folding station 11, the "positioning accuracy in the folding station 11" should be further satisfied to allow the content 6 to accurately fall into the cavity.
Then, step 1 is executed, the paper board S is placed on the folding station 11, and the negative pressure air suction device is opened to perform negative pressure air suction on the through hole so as to suck and fix the paper board S on the bearing bottom plate.
Thereafter, step 2.1 is performed, the sliding cylinder 133 drives the rotary suction arm 132 and the first suction attachment 12 rotatably connected to the rotary suction arm 132 to move from the first initial position toward the sheet S until the first suction attachment 12 is located above the first region to be folded S1, the vacuum pump connected to the first suction attachment 12 through the air pipe is started to make the first suction attachment 12 suck the first region to be folded S1 of the sheet S, the folding cylinder drives the first suction attachment 12 to move upward along an arc trajectory relative to the rotary suction arm 132 until the first region to be folded S1 is folded by 90 °, the vacuum pump is stopped to drive the first suction attachment 12 to release the first region to be folded S1, and the sliding cylinder 133 drives the rotary suction arm 132 and the first suction attachment 12 to move away from the sheet S until the first initial position. The roller 14 is driven by the folding cylinder from the second initial position to fold up the second region to be folded S2 of the sheet S by pushing the sheet S from bottom to top in a rolling manner over the second region to be folded S2 until the second region to be folded S2 is folded by 90 °. The rolling member 14 is driven by the folding cylinder to move downwards up to said second initial position. To this end, a cavity is formed to accommodate the contents.
thereafter, step 3 is performed, the content 6 is placed in a filling station 53 located above the folding station 11, the content 6 is pressed into the cavity by means of the second pusher 51, and the content 6 is gripped during the pressing by means of the resilient guide channel 52, so that the filling of the cavity with the content is achieved. Wherein the entire compactness is maintained when the content 6 is pressed down into the sheet S at the folding station 11. For example, when the content 6 is 10 packets of cigarettes in a double layer as described above.
and 4, stopping the operation of the negative pressure air suction device, releasing the paper board S from the supporting bottom plate, pushing the paper board S out of the folding station 11 (at the moment, the paper board S is partially folded and contains the contents 6), arranging a baffle plate on the pushing path of the paper board S to fold a third to-be-folded area S3 of the paper board S, wherein the third to-be-folded area S3 is connected with the second to-be-folded area S2, and the folded third to-be-folded area S3 covers the cavity. Therefore, the folding of the third area to be folded S3 is completed while the paper board S is pushed out, and the folding is convenient and efficient.
further, the packaging box folded by the folding mechanism 1 for the packaging box, the packaging machine, the folding method for the packaging box and the packaging method is flat and attractive.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (16)

1. A folding mechanism for a package, comprising:
A folding station (11) for placing the cardboard sheets and folding the cardboard sheets at this station;
A first suction attachment (12) arranged in correspondence of a first region to be folded (S1) of the sheet (S);
a first driving assembly (13) for driving the first suction attachment (12) to suck the first region to be folded (S1) and driving the first suction attachment (12) to move upward along an arc track to fold the first region to be folded (S1) and to drive the first suction attachment (12) to release the first suction attachment after the first region to be folded (S1) is folded;
A roller (14) arranged in correspondence with a second region (S2) to be folded of the sheet (S); and
A second driving assembly (15) which drives the roller (14) to push the second region to be folded (S2) to be folded from bottom to top in a rolling manner on the second region to be folded (S2), and drives the roller (14) to move downward after the second region to be folded (S2) is folded;
The second drive assembly (15) comprises:
A fixed guide post seat (151) and a folding cylinder (152);
A guide post (153) movably disposed in the fixed guide post holder (151);
A slider seat (154) connected to the guide post (153), one end of which is connected to the rolling member (14), and the other end of which is connected to the folding cylinder (152);
wherein the folding cylinder (152) drives the slider seat (154) and the guide post (153) to move up and down along the fixed guide post seat (151) so as to further bring the rolling piece (14) to move up and down.
2. a folding mechanism for packets according to claim 1, characterized in that said first driving assembly (13) comprises:
a fixed slider (131);
A rotary suction arm (132) slidably disposed on the fixed slider (131), the first suction member (12) being rotatably connected to the rotary suction arm (132);
A slide cylinder (133) for driving the rotary suction arm (132) to slide on the fixed slider (131);
driving the first suction attachment (12) to rotationally rotate a cylinder (134) in an arcuate path relative to the rotating suction arm (132);
a vacuum pump connected to the first suction attachment (12) through an air tube.
3. a folding mechanism for packages according to any one of claims 1 to 2,
The first suction piece is a suction cup.
4. A folding mechanism for packages according to claim 1,
-arranging one of said first suction fittings (12) on each of the opposite sides of said folding station (11); and
One of the rolling elements (14) is arranged on each of the other opposite sides of the folding station (11).
5. A folding mechanism for packages according to claim 1, further comprising:
A first pusher to push the sheet (S) out of the folding station (11); and
a flap disposed above a push-out path of the sheet (S) to fold a third region to be folded (S3) of the sheet (S) during the pushing-out of the sheet (S).
6. A folding mechanism for packages according to claim 1, further comprising:
A support base plate provided with a through hole, wherein the folding station (11) is positioned on the support base plate and corresponds to the through hole;
and the negative pressure air suction device is positioned below the bearing bottom plate and corresponds to the through hole.
7. A packaging machine comprising a folding mechanism for packages according to any one of claims 1 to 6.
8. the packaging machine of claim 7, further comprising:
A pick-up and transport synchronous phase mechanism (2) which is provided with a second adsorption piece (21) and at least one pair of synchronous toothed belts (22), wherein the second adsorption piece (21) and the folding station (11) are positioned at two ends of the synchronous toothed belts (22), the second adsorption piece (21) can move transversely corresponding to the synchronous toothed belts (22), and the synchronous toothed belts (22) transversely correspond to the folding station (11);
the paper warehouse mechanism (3) is provided with a working station (31), a picking station (32) positioned above the working station (31), at least two material waiting stations (33) transversely arranged relative to the working station (31), at least two paper warehouse frames (34) capable of moving between the material waiting stations (33) and the working station (31), and a lifting assembly for lifting the paper boards (S) positioned in the paper warehouse frames (34) of the working station (31) to the picking station (32);
wherein the second suction member (21) has a mouth facing downwards so as to be able to suck the sheet (S) located at the pick-up station (32) and lift it to a position laterally corresponding to the timing belt (22).
9. a folding method for a packet, characterized in that it comprises:
step 1, placing a paperboard on a folding station;
Step 2, performing step 2.1 and step 2.2 simultaneously, or performing one of step 2.1 and step 2.2 first and then performing the other;
step 2.1, performing the following steps 2.1.1 to 2.1.3:
step 2.1.1, sucking a first area to be folded of the paperboard through a first sucking part;
step 2.1.2, driving the first suction attachment to move upwards in an arc track to fold the first area to be folded;
step 2.1.3, driving the first suction accessory to release the first area to be folded;
Step 2.2, performing the following steps 2.2.1 and 2.2.2:
Step 2.2.1, driving a rolling member to roll on a second area to be folded to push the second area to be folded of the paperboard from bottom to top;
And 2.2.2, driving the rolling member to move downwards.
10. folding method for a package according to claim 9,
In step 2.1:
Before step 2.1.1 is executed, a sliding air cylinder drives a rotary suction arm and a first suction attachment rotatably connected to the rotary suction arm to move from a first initial position to a paper plate until the first suction attachment is positioned above the first area to be folded;
In step 2.1.1, starting a vacuum pump connected to the first suction accessory through an air pipe to enable the first suction accessory to suck a first region to be folded of the paperboard;
In step 2.1.2, a folding cylinder drives the first suction attachment to move upward along an arc trajectory relative to the rotating suction arm;
In step 2.1.3, the vacuum pump is stopped to drive the first suction attachment to release the first area to be folded;
after step 2.1.3 is performed, the sliding cylinder drives the rotary suction arm and the first suction attachment to move away from the paper board until the first initial position.
11. Folding method for a package according to claim 9,
in step 2.2:
in step 2.2.1, the rolling member is driven by the folding air cylinder to push the second area to be folded of the paperboard from bottom to top in a rolling manner on the second area to be folded from the second initial position;
in step 2.2.2: and driving the rolling member to move downwards by a folding air cylinder until the rolling member reaches the second initial position.
12. folding method for a package according to claim 9,
In step 2.1, two opposite first areas to be folded of the paperboard are folded through two first suction attachments which are oppositely arranged;
In step 2.2, two opposite second areas to be folded of the paper board are folded through two opposite rolling members;
the folded first to-be-folded area and the folded second to-be-folded area jointly enclose a cavity for containing contents.
13. folding method for packets according to claim 9, characterized in that in step 1:
The folding station is located on the bearing bottom plate and corresponds to the through hole in the bearing bottom plate, and after the paperboard is placed on the folding station, the negative pressure air suction device is opened to conduct negative pressure air suction on the through hole so as to suck and fix the paperboard on the bearing bottom plate.
14. A packaging method characterized by comprising the folding method for a package according to any one of claims 9 to 13.
15. The packaging method according to claim 14,
The folded first region to be folded and the folded second region to be folded together enclose a cavity for accommodating contents, and after performing step 2, performing the following steps:
Step 3, filling contents in the cavity;
and 4, pushing the paper board out of the folding station, wherein a baffle is arranged on a pushing path of the paper board to fold a third region to be folded (S3) of the paper board, the third region to be folded (S3) is connected to the second region to be folded, and the folded third region to be folded (S3) covers the cavity.
16. The packaging method according to claim 14,
in step 1:
The folding station is positioned on the bearing bottom plate and corresponds to the through hole on the bearing bottom plate, and after the paperboard is placed on the folding station, the negative pressure air suction device is started to perform negative pressure air suction on the through hole so as to suck and fix the paperboard on the bearing bottom plate;
in step 4: and before the paper board is pushed out, stopping the negative pressure air suction device to release the paper board from the supporting bottom plate.
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CN114229068B (en) * 2021-12-22 2023-10-13 安徽金三环金属科技有限公司 Edge folding forming mechanism based on automatic boxing machine

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