CN107073862A - Method and apparatus for producing sack from tubular bag body - Google Patents
Method and apparatus for producing sack from tubular bag body Download PDFInfo
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- CN107073862A CN107073862A CN201580059770.6A CN201580059770A CN107073862A CN 107073862 A CN107073862 A CN 107073862A CN 201580059770 A CN201580059770 A CN 201580059770A CN 107073862 A CN107073862 A CN 107073862A
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- Prior art keywords
- bag
- transfer
- conveyer
- thin slice
- feeding distance
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/02—Feeding or positioning sheets, blanks or webs
- B31B70/04—Feeding sheets or blanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
- B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
- B31B2150/0014—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing transversally to the direction of movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
- B31B2150/003—Flexible containers made from sheets or blanks, e.g. from flattened tubes made from tubular sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2160/00—Shape of flexible containers
- B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2160/00—Shape of flexible containers
- B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/02—Feeding or positioning sheets, blanks or webs
- B31B50/04—Feeding sheets or blanks
- B31B50/046—Feeding sheets or blanks involving changing orientation or changing direction of transport
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/005—Making flexible containers, e.g. envelopes or bags involving a particular layout of the machinery or relative arrangement of its subunits
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- Making Paper Articles (AREA)
Abstract
One kind is used for the device (1) that sack is produced from tubular bag body (10), including conveyer (2), the conveyer along direction of transfer (T) with transfer rate (V) transverse to the planar fashion of its longitudinal extent (L) to transmit bag.Bag passes through processing station (30,40,50,60,70,80) in transmit process, be formed as intersecting bottom by least one end regions (13) of each bag of processing station, and selectively lid thin slice (19) is applied to intersection bottom.Relative to the bag conveyed with transfer rate (V), with transfer velocity (U), along direction of transfer (T), by the mobile feeding distance of bag (10) for treating to be transmitted by conveyer, (Δ y) then transfers them to conveyer (2) to transfer device (4).(Δ y) is chosen so that continuous bag overlaps each other for feeding distance, wherein overlapping widths preferably correspond to one times or twice of the height (h) of triangle knuckle (14), and the triangle knuckle (14) produces when bottom side pkt. flap (15,16) is folded.
Description
Technical field
The present invention relates to the method and apparatus for producing sack from tubular bag body, wherein the bag is preferably by plastics
Either non-woven plastics material (such as plastics adhesive-bonded fabric) is made or the fabric by plastic strip and non-woven plastics material the fabric of bar
The composite of material is made, or is made up of the plastic sheeting being connected with web structure, wherein the material alternatively at least exists
At least one plastic layer and/or at least one plastic sheeting (such as orient polypropylene film) are coated with side.Bag is being passed
Send on device with transfer rate along direction of transfer, to be transmitted transverse to the planar fashion of its longitudinal extent, wherein the bag exists
Pass through processing station in transmit process, be formed to intersect bottom by least one end regions of each bag of the processing station
Portion, and alternatively lid thin slice is applied to the intersection bottom.
Background technology
Box-like sack, also referred to as intersects bottom sack, is the sack with box form, and box-like sack is set in sack production
Produced by the following method in standby：Tubular bag body is provided, its unlimited end regions is converted into intersection bottom.Bag is with plane side
Formula is pumped through production equipment so that two layers of tubular bag body is adjacent to each other.In order to form the bottom, described two layers in pipe
The end regions of shape bag are separated from each other, and wherein one layer is folded 180 ° and arrives itself, as side pocket lid, so as to generate
Unlimited bottom, wherein another layer of the second side pocket lid of formation.One layer, the end region are folded by the end regions in tubular bag body
The front and rear in domain generates triangle knuckle respectively.This process is referred to as " disassembling " in the prior art.Further adding
In process row, valve block, which can be inserted into, (to be used to produce " box-like valve bag ", it can use filling nozzle to pass through the valve to fill
Fill out), and final substructure produced by foldable bottom side pocket lid in an overlapping manner.Depending on the material of bag,
Overlapping bottom side pkt. flap is glued or by thermal weld.Alternately or additionally in this, bottom cover thin slice can be put
Put on overlapping bottom side pkt. flap, be then glued or be welded to thereon.This bag-making equipment is in patent AT
It is described in 408427B.
The output of bag-making equipment depends significantly on tubular section to be produced and is transmitted through production equipment
Transfer rate.For the bag-making equipment known from the B of patent AT 408427, the cycling service of the equipment has been proved to
It is unfavorable, which limit the output of bag to be processed.Periodicity for bottom disassemble (including the bottom of cooperation must
The fixation wanted) time expenditure even may mean that whole device for producing sack performance the upper limit.
The device that this shortcoming produces open bottom by being used for disclosed in the B1 of EP 2441574 in bag overcomes,
Described device enables bag continuous conveying, so as to cause the growth of transfer rate and productivity ratio.
In the invention that the A1 of EP 2711166 are described, the transfer rate of bag can be further in bag-making equipment
Increase, in this way, in bag is sent to the transport zone of its cross drive from its longitudinal direction, the indexing of Workpiece Holders
Frequency increase.
Meanwhile, the increase of transfer rate has reached the limit of the performance for producing the device for intersecting bottom, the dress
The transmitting path arrangement along bag is put, in particular for hot gas welding tipping bottom cover thin slice and/or valve being applied on bag
The limit for the performance put.For this reason that, the raising of the output of bag-making equipment can not be by further increasing bag
Transfer rate realize.
Another bag-making equipment is disclosed in the B of DE 1216196.Within this document, from longitudinally fed region
In unload after workpiece, reduction work speed possibility be resolved so that the distance of workpiece to each other will be reduced simultaneously.
However, this embodiment is abandoned due to unrealistic, because the complexity of device and cost increase cause it not realize.
For being used for the production equipment of box-like sack or box-like valve bag according to prior art, tubular bag body transverse to
It is supplied to the conveyer continuously run its longitudinal extent, and when being transmitted, tubular bag body passes through various processing stations,
Such as bottom opening device.This production equipment is schematically shown in fig. 8.During bag is transmitted in transverse direction, close
It is that (x) is the distance between preceding longitudinal edge or rear longitudinal edge of two continuous bags (10), it generally fixedly sets
It is fixed, also keep constant in the processing of the tubular bag body with different width (b).Therefore, the bag of bag-making equipment is passed through
The output of body is essentially dependent on the transfer rate (V) and the relation of the bag transmitted.Especially, bag have compared with
In the case of small width (b), due to fixed relation (x), the relatively large distance (y) between bag (10) is generated,
So as to prevent the transmission potentiality of bag-making equipment to be fully utilized.
Another shortcoming of the relation of fixed setting is that the hot air welding device needed for applying bottom cover thin slice exists respectively
Continuously dallied between bag or continuous bottom cover thin slice, so that substantial amounts of energy is discharged into environment in the form of hot blast
In without being utilized because being closed between continuous sack and being again turned on hot air welding device due to technology reason
It is infeasible.
The content of the invention
Therefore, task of the invention is the output for improving the bag of bag-making equipment, the biography without increasing bag
Send speed.
The task respectively by the feature with claim 1 or 11 be used for from tubular bag body produce sack device and
Method is solved.The advantageous embodiment of the present invention is described in dependent claims and following specification.
The processing of bag is especially suitable for for producing the device of the invention of sack and the method for the present invention from tubular bag body,
By the fabric of plastic strip, either non-woven plastics material (such as plastics adhesive-bonded fabric) is made or knitting by plastic strip the bag
The composite of thing and non-woven plastics material is made, or is made up of the plastic sheeting being connected with web structure, wherein the material
Material is alternatively at least coated with least one plastic layer and/or at least one plastic sheeting (such as oriented polypropylene (OPP) on side
Film).
Bag is with transfer rate along direction of transfer, to be transmitted transverse to the planar fashion of its longitudinal extent, wherein in bag
In, when being transmitted, at least one end regions is formed as intersecting bottom, and alternatively lid thin slice is applied to intersection bottom
Portion.
Relative to the bag conveyed with transfer rate, bag to be sent is moved from least one transfer device along direction of transfer
Dynamic feeding distance, is then moved with transfer rate, and wherein at least is in some sections, and movement of the bag on feeding distance is to shift
Speed is carried out, and the transfer velocity is higher than transfer rate.By this method, the length of relation is adapted to and can be set as
Preset distance between adjacent bag, by the width calculation according to bag and control feeding distance, so as to produce continuous bag
Between or the lid thin slice of continuous bag between preset distance.
If feeding distance is selected such that continuous bag overlaps each other, it can realize what such as hot gas welding was gone to the station to meet somebody
The especially good utilization of processing station, wherein preferably overlapping widths correspond to one times or two of height of triangle knuckle
Times, the triangle knuckle is produced when bottom side pkt. flap is folded.Correspond to the height of triangle knuckle in overlapping widths
In the case of twice, in one at least in the continuous bag, correspond to the knuckle towards having for another bag
The longitudinal component of width of height be folded.
In one embodiment of the invention, transfer device includes second conveyer and second conveyer, described the
One conveyer and second conveyer move the bag along the direction of transfer with the planar fashion transverse to its longitudinal extent
Body, wherein the second conveyer is arranged in the upstream of the second conveyer, and wherein described second conveyer
Transfer rate be higher than the second conveyer transfer rate.In the present embodiment, it is possible to only be paid with the equipment of very little
Realize the arranged superposed of bag.
If processing station includes bottom opening station, and if transfer device is arranged in the downstream at the bottom opening station,
Then the verified device for being used to produce sack from tubular bag body of the invention is especially efficient.
In order that the device of the present invention is run in an automated manner, the width of bag is detected using sensor.
In order to carefully process bag, in order to pick up bag exactly and be transferred into conveyer, bag feeding away from
It can be controlled from upper translational speed according to rate curve.Rate curve includes accelerating to transfer velocity, and depending on
After a period of time of the length of feeding distance, transfer rate is decelerated to.
For the device of the present invention, if by the preset distance between the bag width and continuous bag detected, meter
Calculate the desired locations of lid thin slice and the desired length of lid thin slice and alternatively calculate the valve block desired locations of valve block, and be based on
This information, lid thin slice is cut according to desired length and is applied to bag when they have reached the desired locations of lid thin slice
Body, and alternatively when valve block has reached the valve block desired locations it is applied to bag, then bag-making equipment can
To be improved further and automate to higher level.
In order to reliably manipulate, it is preferable that transfer device includes the maintaining body for being used to grasping, keep and discharging bag,
Wherein maintaining body can be structured as mechanical gripper and/or vacuum sucking mechanism.Controller control maintaining body is grasped and discharged
The time point of bag.If provided, with least two maintaining bodies that can be moved independently of one another, then can be by suitable
Controller realizes the unjustified bag that alignd by the different motion of maintaining body.Unjustified is probably for example in cutting bag
When it is caused.
Brief description of the drawings
The present invention is explained in more detail by the example of embodiment with reference now to accompanying drawing.
Fig. 1 shows the schematic diagram of bag-making equipment according to the principles of the present invention.
Fig. 2 shows the stereogram of bag-making equipment according to an embodiment of the invention.
Fig. 3 and Fig. 4 show the top view during transmission of the bag on conveyer, illustrate between continuous bag
Distance.
Fig. 5 and Fig. 6 show the top view during transmission of the bag on conveyer, illustrate the company according to the present invention
The distance between continuous bag.
Fig. 7 shows the schematic diagram of another embodiment of bag-making equipment according to the principles of the present invention.
Fig. 8 schematically shows the conveyer of the bag-making equipment according to prior art.
Embodiment
With reference to Fig. 1 and Fig. 2, the device 1 and Ben Fa of the invention for producing sack from tubular bag body 10 is turned now to
The principle of bright method, and be described by exemplary embodiment.Device 1 include conveyer 2, the conveyer 2 with
Transfer rate V is along direction of transfer T, with transverse to its longitudinal extent L planar fashion transmission bag 10.Bag has front side edge 11
With back side edge 12, width b is measured between front side edge 11 and back side edge 12.Bag 10 is maintained on conveyer by guide rail 3
At suitable position.Bag 10 is made up of the fabric or non-woven plastics material (such as plastics adhesive-bonded fabric) of elongated plastic strip,
Either it is made up or the plastic sheeting by being connected with web structure of the fabric of plastic strip and the composite of non-woven plastics material
It is made, and preferably bag is provided with the coating being made up of polymer.Composite can also include plastic sheeting, the scraps of paper or gold
Belong to film.Preferably, coating has the layer being made up of OPP film, further with printing layer etc..
In the embodiment of fig. 2, tube 10a is as unshowned storage device or as built in transverse cutting device 8
Tube production machine supply, it cuts tubular bag body 10 from tube 10a, and they is fed into hereinafter more detailed
The transfer device 4 carefully described.
When being transmitted on conveyer 2, bag 10 passes through processing station, and by the processing station, each bag 10 is extremely
Few end regions 13 are formed as intersecting bottom, and lid thin slice 19 is applied to intersection bottom.In the described embodiment, shape
Into the processing station then described.In the other embodiments of the disclosure, all these processing stations are not realized, or can be with
Provided with other processing stations (quality control, printing equipment etc.).
For more preferable definition, processing station is only shown in symbolistic mode with arrow in Fig. 1.Folding station 30 is intended to
The end regions 13 of bag 10 are folded up from plan-position around guide rail 3.Bottom opening station 40 is intended to the bag that will be folded around
Two layers of 10 end regions 13 is drawn apart from one another, and by their 90 ° of foldings each in opposite direction, so as to generate with two sides
The open bottom 17 of pkt. flap 15,16, one of side pocket lid 16 is folded back 180 ° of walls for arriving bag 10.Pass through folded sides pkt. flap
15th, 16, triangle knuckle 14 is produced respectively in the front and rear of open bottom 17.In valve block docking station 50, the quilt of valve block 18
It is placed in the open bottom 17 of bag 10, then alternatively, by being glued or thermal weld is fixed.Then, in bottom
Formed in station 60, final intersection substructure is produced by foldable bottom side pocket lid 15,16, wherein by folding, front and rear
Triangle end socket 14 at bottom end region is reduced, but still maintains the triangular shaped of them.Because side pocket lid
15th, 16 it is folded at parallel to mutual folded edge, so triangle end socket has isosceles triangle shape, its hypotenuse is in folding
Extend between the end points on folded side.If the bottom side pkt. flap 15,16 being folded overlaps each other, depending on the material of bag, it
Be glued or by thermal weld.However, also there are some embodiments of sack, wherein bottom side pkt. flap 15,16 is each other
It is not overlapping.In the described embodiment, it is additionally provided with for bottom cover thin slice 19 to be applied to the bottom side pkt. flap 15,16 being folded
Lid thin slice application station 70, and the hot gas welding for being fixed on bottom cover thin slice 19 on the bottom side pkt. flap 15,16 being folded
Go to the station to meet somebody 80.Lid thin slice application station 70 and welding station 80 can be integrated each other.As the replacement of welding station 80, gluing can also be set
Stand.
According to the disclosure, device 1 has transfer device 4, and bag 10 is fed into transfer dress in the way of transversely or longitudinally
Put 4.The bag 10 being fed is transferred to conveyer 2 by transfer device 4 by the movement along direction of transfer T with lateral arrangement.
According to the disclosure, relative to the bag conveyed with transfer rate V, transfer device 4 is moved along direction of transfer T with feeding distance Δ y
Bag 10 to be sent, then transfers them to conveyer 2, and wherein at least is in some sections, and transfer device 4 is along sender
Bag 10 is moved with transfer velocity U to T, the transfer velocity U is higher than transfer rate V.Bag 10 is being fed into the phase of transfer device 4
Between have moved apart from y1, and with transfer rate T along direction of transfer each other, but after conveyer 2 is transferred to, they that
This have reduction apart from y2, it is realized by mobile feeding distance Δ y.Therefore, feeding distance Δ y can be calculated as follows：
Feeding distance Δ y=bags are apart from y1- bags apart from y2
By during transmitting, between tubular bag body, the distance of adjacent bag being reduced into y2 from y1, relation x1's is first
Beginning length reduces feeding distance Δ y to relation length x2.In this way, by device 1 bag 10 output energy
It is enough to be increased with constant transfer rate T.
As described in Figure 2, transfer device 4 can have the maintaining body 4b for being used for grasping, keep and discharge bag.In this reality
In the example for applying example, maintaining body 4b is configured to mechanical gripper, and it is attached at the endless belt 4a of tape winder 4c, 4d rotation.Band
A 4c in disk is driven by driver 7, and the driver is controlled (in an automated manner) by controller 6, and controller 6 can also be controlled
Maintaining body 4b processed.As the replacement of handgrip, maintaining body 4b may be configured to vacuum sucking mechanism.By means of controller 6,
It can calculate and change feeding distance Δ y.Controller 6 can also control the speed of driver 7, and it controls maintaining body 4b
Grasp and discharge the time point of bag 10.
Because according to the disclosure, between bag 10 or between bottom valve block 19 is change respectively apart from y1, y2,
So, in order to respond variable sack distance, set processing station 30,40,50,60,70,80 to be in a device equipped with independently
Driver, switch and actuator (these can for example be controlled by controller 6).For the sake of clarity, controller 6 is filled with transfer
Put 4 and the connection of processing station 30,40,50,60,70,80 do not show in fig. 1 and 2.This connection can be point-to-point
Line (in series or in parallel) or network connection.
Controller 6 includes calculator, and by calculator, feeding distance Δ can be calculated according to the width (b) of bag 10
Y, to produce the preset distance y2 between continuous bag 10,10, or the distance (distance between the lid thin slice of continuous bag
Y3, is shown in Fig. 1).Controller 6 controls transfer device 4 according to the feeding distance Δ y calculated.
For the automatic operating of the device 1 of the present invention, it is provided for detecting the width b of bag 10 sensor 5.Sensing
The width b detected is sent to controller 6 by device 5.For example, sensor 5 can be camera auxiliary, or can be by means of light
Grid carry out detection width b.
The prior art constant with relation holding is compared, according to the disclosure, and feeding distance Δ y changes according to bag width b,
So as to change the length of relation.Bag width b is smaller, and feeding distance Δ y is longer, whereby, and bag is pushed forward.Therefore,
In the case of different bag width b, it can also keep constant apart from y2 between bag 10.
For the careful processing, accurate pickup and transfer of bag, according to rate curve, the control transfer device 4 of controller 6 edge
Direction of transfer T moves the speed of bag.The rate curve include be picked bag (bag with 0 arrive transfer rate V between
Scope in speed be fed to transfer device 4) accelerate to transfer velocity U, and in the length depending on feeding distance Δ y
A period of time after, decelerate to transfer rate V.Controller 6 can also pass through the pre- of the bag width b that detects and continuous bag
Set a distance y2, calculates the desired locations and desired length of lid thin slice 19, and the alternatively desired locations of valve block 18, and being based on
This information, control lid thin slice application station 70 cuts lid thin slice 19 with toilet cover thin slice application station 70 according to desired length, and when lid
Thin slice 19 applies it to bag 10 when having arrived at desired locations.In a similar manner, the control of controller 6 valve block docking station
50, when valve block 18 has arrived at desired locations so that valve block 18 is applied to bag 10 by valve block docking station 50.It should be noted that
It is that the length of lid thin slice is determines the mathematical result of the measurement of sack thickness, according to the measurement foldable bottom side pocket lid 15,16,
Because this measurement determines the length of folded edge and intersects the length of bottom, so that it is determined that the length of lid thin slice 19.
By means of the transfer device 4 of the present invention, the width fluctuations for the bag 10 being fed can also be reacted, and
Therefore, accuracy can be improved at subsequent processing station, so as to optimize the quality of sack.
Due to the less distance between bag 10, also improve the hot gas welding for fixing bottom cover thin slice 19 and be hinged with
Put 80 efficiency because idle running and because the energy loss of untapped hot driving is minimized.
In numerous applications, feeding distance Δ y is selected so that preset distance y2 between continuous bag (the i.e. bag 0
For flush arrangement, Fig. 3 is seen) between 5cm (see Fig. 4).Bag is mutual apart from smaller, and the time cycle is shorter, at this section
In, such as hot gas welding is gone to the station to meet somebody 80 is discharged into environment by its untapped heat energy.Based on this method, in Fig. 5 institutes of the present invention
In the embodiment shown, this distance is further reduced triangle by the adjacent bag 10,10 arranged in an overlapping manner and sealed
The height h of head degree.Using mathematic(al) representation ,-h distance is generated between adjacent bag.In order to will be in adjacent bag
10th, the distance between 10 lid thin slice 19 is set as 0, i.e., evenly arrange them, according to the disclosure, in extreme case (see
Fig. 6), the overlapping widths of adjacent bag 10,10 can be chosen to be twice of the height h of triangle knuckle, which create -2h away from
From.However, for actual possibility, it is necessary that at least in one of continuous bag, fold towards another bag
Longitudinal component with width h.
However, it is contemplated that between adjacent bag 10,10 extreme reduction distance, as shown in fig. 5 and fig.,
It is not suitable for all follow-up processing stations.If for example, bag 10 to the greatest extent may be used at transfer station by the transfer station 4 in Fig. 1
Energy near-earth is pushed together, so that overlapped, then subsequent being folded up at folding station 30 of end regions 13 and end
Opening of the region 13 at bottom opening station 40 will be impossible.On the other hand, between adjacent bag it is extremely narrow away from
It is above-mentioned from also having the advantages that.Therefore, present invention provide that by arranging several transfer devices 4 of the invention along conveyer 2, making
The several steps of adjacent bag 10, the distance between 10 point are obtained to reduce.For example, the downstream at bottom opening station 40 can arrange second turn
Moving device 4, by second transfer device 4, adjacent bag 10, the distance between 10 y2 are reduced to-h.In the figure 7, illustrate
Property show the embodiment for being used to produce the device of sack from tubular bag body of the present invention, corresponding to Fig. 1 embodiment, in figure
Unlike in 7 scope of embodiments, the second transfer device 4 is placed directly the upstream of lid thin slice application station 70, so that phase
Adjacent bag 10,10 can be even pushed together to apart from y2=-2h.It is also possible to utilize bottom opening station 40
Downstream the second transfer station and directly the step of the 3rd transfer station 4 of the upstream of lid thin slice application station 70 in reduce distance.
In the embodiment of the device of the present invention, 2 points of conveyer is second conveyer and second conveyer, they
Bag 10 is moved with the planar fashion transverse to its longitudinal extent L along direction of transfer T, wherein second conveyer is arranged in second
The upstream of conveyer, and wherein the transfer rate of second conveyer is higher than the transfer rate V of second conveyer.Cause
This, the transfer rate of second conveyer corresponds to transfer velocity U.
In addition it is also possible that only one of which transfer station, its downstream or further located immediately at bottom opening station 40
Ground is along conveyer, so as to reduce the distance between adjacent bag.This means bottom opening station 40 is come with " more time "
Bottom is opened, while the heat energy of welding station 80 is optimally utilized.
By changing respectively between bag or the distance between bottom cover thin slice, processing station such as bottom opening device,
Valve insertion apparatus and lid thin slice bringing device are also necessarily provided with single driver, so as to make to variable sack distance
Go out reaction.
Claims (16)
1. one kind is used for the device (1) that sack is produced from tubular bag body (10), wherein the bag preferably knitting by plastic strip
Either non-woven plastics material (such as plastics adhesive-bonded fabric) is made or by the compound of plastic strip fabric and non-woven plastics material thing
Material is made, or is made up of the plastic sheeting being connected with web structure, wherein the material is alternatively applied at least on side
It is covered with plastic layer and/or at least one plastic sheeting, such as orient polypropylene film,
With at least one conveyer (2), the conveyer (2) is with transfer rate (V) along direction of transfer (T), with transverse direction
Transmit the bag in the planarizing manner of its longitudinal extent (L), wherein the bag in transmit process by processing station (30,
40th, 50,60,70,80), by the processing station (30,40,50,60,70,80), at least one end regions of each bag
(13) be formed as intersecting bottom, and alternatively lid thin slice (19) is applied to the intersection bottom,
It is characterized in that at least one transfer device (4), relative to the bag conveyed with transfer rate (V), it is described at least one
The bag (10) for treating to be transmitted by the conveyer is moved feeding distance by transfer device (4) along the direction of transfer (T)
(Δ y), then transfers them to the conveyer (2), and wherein at least is in some sections, and the transfer device (4) is along institute
Direction of transfer (T) is stated with the mobile bag of transfer velocity (U), the transfer velocity (U) is higher than the transfer rate (V), its
Described in feeding distance (Δ y) is chosen so that the continuous bag overlaps each other, and wherein overlapping widths are preferably corresponded to
One times or twice of the height (h) of triangle knuckle (14), the triangle knuckle (14) is rolled in side pkt. flap (15,16)
Produced when folded, wherein in the case of twice corresponding to the height (h) of triangle knuckle (14) of overlapping widths, at least continuous
The bag in one in, towards another bag have corresponding to the knuckle height (h) width longitudinal direction
Partly (10b) is folded.
2. device according to claim 1, it is characterised in that the transfer device (4), which has, to be used to grasp, keep and release
The holding means (4b) of the bag are put, wherein the holding means preferably include mechanical gripper and/or vacuum suction means.
3. device according to claim 2, it is characterised in that set at least two to keep means (4b), described at least two
Individual holding means can be moved independently of one another.
4. the device according to any one of preceding claims, it is characterised in that the transfer device includes the first transmission dress
Put and second conveyer, the second conveyer and the second conveyer along the direction of transfer (T) with transverse to
The planarizing manner of its longitudinal extent (L) moves the bag (10), is passed wherein the second conveyer is arranged in described second
Send the upstream of device, and transfer rate of the transfer rate higher than the second conveyer of wherein described second conveyer.
5. the device according to any one of preceding claims, it is characterised in that the processing station includes bottom opening station
, and the transfer device is arranged in the downstream of the bottom opening station (40) (40).
6. the device according to any one of preceding claims, it is characterised in that controller (6), controller (6) foundation
The width (b) of the bag calculates the feeding distance (Δ y), so that between continuous bag or in continuous bag (10)
The lid thin slice (19) between produce preset distance (y2, y3), and the controller (6) is according to the feeding that calculates
(Δ y) controls the transfer device (4) to distance.
7. device according to claim 6, it is characterised in that for the sensor for the width (b) for detecting the bag
(5), the width detected is transferred to the controller (6) by the sensor (5).
8. the device according to the claim 6 and 7 about claim 2, it is characterised in that controller (6) control
The holding means (4b) grasp and discharged the time point of the bag.
9. the device according to any one of claim 6 to 8, it is characterised in that the controller (6) is according to rate curve control
Speed of the transfer device (4) along the mobile bag of the direction of transfer (T) is made, the rate curve includes accelerating to institute
Transfer velocity (U) is stated, and (after a period of time of Δ y) length, the transmission is being decelerated to depending on the feeding distance
Speed (V).
10. the device according to any one of claim 7 to 9, it is characterised in that based on the bag width (b) detected and
The preset distance (y2) of continuous bag, the controller (6) calculates the desired locations and the lid thin slice (19) of the lid thin slice
Desired length and alternatively calculate valve block (18) valve block desired locations, and based on this information control be used for apply cover it is thin
The processing station (70) of piece, so that it cuts the lid thin slice (19) according to the desired length and works as the lid thin slice (19)
The bag is applied to during through reaching the lid thin slice desired locations, and alternatively controls the processing station for valve block insertion
(50) so that when valve block has arrived at the valve block desired locations, valve block (18) is applied to the bag by the processing station.
11. one kind is used for the method that sack is produced from tubular bag body (10), wherein the bag is preferably by the fabric of plastic strip
Either non-woven plastics material (such as plastics adhesive-bonded fabric) is made or by plastic strip fabric and the composite wood of non-woven plastics material
Material is made, or is made up of the plastic sheeting being connected with web structure, wherein the material is alternatively coated at least on side
There are plastic layer and/or at least one plastic sheeting, such as orient polypropylene film,
Wherein described bag (10) is with transfer rate (V) along direction of transfer (T), with transverse to the flat side of its longitudinal extent (L)
Formula is transmitted, wherein in the bag, when being transmitted, at least one end regions (13) is formed as intersecting bottom, and
Alternatively lid thin slice (19) is applied to the intersection bottom,
Characterized in that, the bag to be sent (10), relative to the bag conveyed with transfer rate (V), along the transmission
Feeding distance is moved in direction (T), and (Δ y), then mobile with transfer rate (V), wherein at least exists in some sections, the bag
(movement on Δ y) is carried out the feeding distance with transfer velocity (U), and the transfer velocity (U) is higher than the transfer rate
(V), (Δ y) is chosen so that the continuous bag overlaps each other, and wherein overlapping widths are preferably wherein the feeding distance
Corresponding to one times or twice of the height (h) of triangle knuckle (14), the triangle knuckle (14) bottom side pkt. flap (15,
16) produced when being folded, in the case that wherein overlapping widths correspond to twice of the height (h) of triangle knuckle (14), at least
In one in the continuous bag, towards the width with the height (h) corresponding to the knuckle of another bag
Longitudinal component (10b) be folded.
12. method according to claim 11, it is characterised in that the feeding distance (width of the Δ y) according to the bag
Spend (b) to calculate, so as to produce between continuous bag (10) or between the lid thin slice (19) of continuous bag predetermined
Distance (y2, y3), and according to the feeding distance calculated, (Δ y) controls the movement of the bag.
13. method according to claim 12, it is characterised in that detect the described of the bag using sensor (5)
Width (b).
14. the method according to any one of claim 11 to 13, it is characterised in that the bag is controlled according to rate curve
Body the feeding distance (speed moved on Δ y), the rate curve include accelerate to the transfer velocity (U), and
(after a period of time of Δ y) length, the transfer rate (V) is being decelerated to depending on the feeding distance.
15. the method according to claim 13 or 14, it is characterised in that by the bag width (b) detected and even
The preset distance (y2) of continuous bag, calculates the desired locations of the lid thin slice and the desired length of lid thin slice (19) and can
Selection of land calculates the valve block desired locations of valve block (18), and is cut based on this information lid thin slice (19) according to the desired length
And the bag (10) is applied to when they have arrived the lid thin slice desired locations, and alternatively when the valve block
(18) bag is applied to when having arrived at the valve block desired locations.
16. the method according to any one of claim 11 to 15, it is characterised in that bag (10) to be sent is in the bag
After the bottom opening of body along the direction of transfer (T) move feeding distance (Δ y), it is then mobile with the transfer rate (V), its
In at least in some sections, in the feeding distance, (movement on Δ y) is carried out the bag with the transfer velocity (U), institute
Transfer velocity (U) is stated higher than the transfer rate (V).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910447922.XA CN110154448B (en) | 2014-11-04 | 2015-11-02 | Method and device for producing bags from tubular bags |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14191600.7A EP3017940B1 (en) | 2014-11-04 | 2014-11-04 | Method and a device for the production of bags from tubular bag bodies |
| EP14191600.7 | 2014-11-04 | ||
| PCT/EP2015/075409 WO2016071261A1 (en) | 2014-11-04 | 2015-11-02 | Method and device for producing bags from tubular bag bodies |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910447922.XA Division CN110154448B (en) | 2014-11-04 | 2015-11-02 | Method and device for producing bags from tubular bags |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107073862A true CN107073862A (en) | 2017-08-18 |
| CN107073862B CN107073862B (en) | 2019-06-21 |
Family
ID=51868049
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580059770.6A Active CN107073862B (en) | 2014-11-04 | 2015-11-02 | For the method and apparatus from tubular bag body production sack |
| CN201910447922.XA Active CN110154448B (en) | 2014-11-04 | 2015-11-02 | Method and device for producing bags from tubular bags |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910447922.XA Active CN110154448B (en) | 2014-11-04 | 2015-11-02 | Method and device for producing bags from tubular bags |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3017940B1 (en) |
| CN (2) | CN107073862B (en) |
| BR (1) | BR112017007870B1 (en) |
| WO (1) | WO2016071261A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385891A (en) * | 2019-07-04 | 2019-10-29 | 河北盛世锦唐包装有限公司 | A kind of novel side's bottom valve pocket Bag Making Machine |
| CN113226724A (en) * | 2018-12-17 | 2021-08-06 | 史太林格有限责任公司 | Device and method for applying a cover sheet to the ends of a pouch section preformed as a cross base |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3498624B1 (en) | 2017-12-14 | 2020-09-23 | Starlinger & Co Gesellschaft m.b.H. | Bag for loose material |
| US11390051B2 (en) * | 2018-09-19 | 2022-07-19 | Fuji Seal International, Inc. | Manufacturing method and manufacturing apparatus for pouch container |
| WO2021038387A1 (en) * | 2019-08-24 | 2021-03-04 | Lohia Corp Limited | A process and an apparatus for bag formation |
| CN111619162B (en) * | 2020-04-16 | 2021-08-20 | 西安市洁美塑业有限责任公司 | Valve port bag production is with gluing back cover machine with heat |
| EP4294628A1 (en) * | 2021-02-19 | 2023-12-27 | Lohia Corp Limited | A transferring system and a method for transferring cut pieces of web material around corners |
| AT524968B1 (en) * | 2021-04-29 | 2022-12-15 | Starlinger & Co Gmbh | Device and method for producing bags from hose sections |
| DE102021134238B3 (en) | 2021-12-22 | 2023-05-04 | Mondi Ag | Method of making paper sacks and paper sacks |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107073862B (en) | 2019-06-21 |
| WO2016071261A1 (en) | 2016-05-12 |
| EP3017940B1 (en) | 2017-09-13 |
| CN110154448A (en) | 2019-08-23 |
| CN110154448B (en) | 2022-01-21 |
| BR112017007870B1 (en) | 2022-02-01 |
| EP3017940A1 (en) | 2016-05-11 |
| BR112017007870A2 (en) | 2018-01-23 |
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