CN85106228A - The method and apparatus that is used for wrapping machine - Google Patents
The method and apparatus that is used for wrapping machine Download PDFInfo
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- CN85106228A CN85106228A CN85106228.8A CN85106228A CN85106228A CN 85106228 A CN85106228 A CN 85106228A CN 85106228 A CN85106228 A CN 85106228A CN 85106228 A CN85106228 A CN 85106228A
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- seal receptacle
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Abstract
By external process, sealing-in and cutting, make packing chest to tubular packaging material.In forming work, material is as supporting in the pipe.For preventing that in this course of processing the air that is sealing extrudes by the open topped end of tubes of material, has used a sealing arrangement (14) that places tubes of material, it comprises a movable seal receptacle (18).According to the present invention, the sealing seat is being pressed in the mode of balance by the air pressure of sealing, thereby can form the sealing to sealing surface (22).On the circumference of seal receptacle, the sealing (24) of flexible material is arranged, it leans against the inboard of tubes of material.
Description
What the present invention talked is the method that wrapping machine is done packing.This wrapping machine is by becoming plate of material socket, moving down, constantly it laterally flattened, seal, utilize sealing arrangement that the sealing of its underpart and its opened upper end end such as is opened at operation socket, and the most tabular packing become packing chest.
The invention still further relates to the device of on following wrapping machine, realizing said method.This wrapping machine can become tubular packaging material packing chest one by one, and it is provided with sealing arrangement in the packing socket, and it can seal out seal cavity in this socket bottom.
Be used for for example packing chest of milk, other liquid or semi-fluid food of splendid attire, normally make, and this material generally include which floor paper, thermoplastic material and aluminium case by the multi-layer flexible package material.A kind of known boxes is made like this, promptly when above-mentioned packing lamellated plate infeeds wrapping machine, its two longitudinal edge is connected together, and seals each other in the close mode of liquid, and this plate is constantly become tubular.Subsequently, the weighting material of aequum is sent into the bottom of packaging material tube, by with the continuous transverse sealing of this packaging material tube, shear thereupon, this packaging material tube just under the help of the Sealing jaw of collaborative work, is divided into the packing chest one by one that is separated from each other.Meanwhile, carry out certain processing that is shaped, make this packing chest finally obtain needed shape, for example parallelepiped.
In that being become, the bottom of this packaging material tube for example has substantially in the packing chest one by one of square-section, utilized the material that is stored in the packaging material tube and gas propping material as the processing that is shaped, because, otherwise, fold is together brokenly for flexible packages.For preventing during the processing that is shaped, with this material and all above-mentioned in envelope gas we extrudes and goes at the beginning through the top of packaging material tube, do not have a sealing arrangement in this packaging material tube, it is positioned at a distance on horizontal pressing of this tubes of material and the shaping Working position.The sealing device is supported in the aforementioned tube by vertically extending filling tube in aforementioned tube.Because this packaging material tube and this filling tube are removable mutually, therefore, during machine works, obtain the leakproofness that needs, to the structure of sealing arrangement very high request will be proposed.Used way is to adopt the parts of rubber coating and flexibility " skirt " and so at present, but has proved unsafty, mainly is that required leakproofness can not keep because opposite side is arranged between moving period between above-mentioned filling tube and packaging material tube.In addition, because the pressure that bell shape sealing shroud hangs down in tubes of material must be relatively large, thereby the wearing and tearing of undesirable leak free are just very obvious.
Purpose of the present invention just provides a kind of method, utilize this method, might satisfactorily the lower end of packaging material tube be sealed a part as required, make during machine run, this pipe lower end is remained under the required pressure, thereby allow packaging material tube is formed processing.
Another object of the present invention provides the method for a kind of enclose tubes of material lower end, the existing shortcoming of those methods that this method is not used in the past.
Another object of the present invention provides a kind of method that seals mobile packaging material tube, utilizes this method, even between packaging material tube and seal support part bigger relative side travel is arranged, also can obtain gratifying leakproofness.
According to the present invention, these purposes and other purpose have all reached, because the characteristics of said method are, the sealing device has the radially seal receptacle movably of a band circumferential seal, this circumferential seal leans against the inboard of packaging material tube, the air pressure medium that is transported to the tubes of material bottom acts on the seal receptacle: make the seal receptacle pressurized, be pressed on the sealing surface that is positioned at the top, opposing acts on the power on sealing and the seal receptacle downwards.
Provided the better embodiment of the inventive method,, it is characterized in that clearly according to subordinate claim 2 and 3.
Owing to designed the full seal receptacle of inscribing that can move radially as the present invention according to this method, thereby obtained sealing effectiveness, even packaging material tube or filling pipe have bigger sideway movement, the gaseous tension in this pipe bottom changes, and also can keep the sealing effect.Although tubes of material has sideway movement (method in the past be can not), the contact pressure between sealing and the packaging material tube inboard along the circumference of packaging material tube, can keep constant substantially.
Another object of the present invention provides a kind of device of realizing this method, and this device does not have those shortcomings of former known devices.
Therefore, another object of the present invention provides a kind of simple in structure, the device of long service life and low cost of manufacture.
Another purpose of apparatus of the present invention provides a kind of sealing arrangement, and the movable piece of this device is minimum, no spring and movement parts etc., so it is easy to cleanse and disinfect, thereby be specially adapted to sterile packaging machine.
Another purpose of apparatus of the present invention provides a kind of sealing arrangement, and if necessary, sealing member wherein can be changed, and simple to operate when changing, and expense is not high.
These and some other purpose all reaches by the present invention, because said apparatus is characterised in that, its sealing arrangement has the fixing sealing guide piece that is positioned at packaging material tube, this guiding means supports movable seal receptacle, and the circumference of sealing seat is furnished with lip ring, and the sealing part leans against the inboard of packaging material tube.
The preferred embodiment of apparatus of the present invention provides, and according to claim 5～10, it is characterized in that clearly.
Because according to the present invention, make sealing arrangement that but the seal receptacle of sideway movement be arranged, and the sealing seat is supporting the lip ring that is positioned at circumference, therefore the sealing function of this device has just separated each other with movable function, this just means, each above-mentioned parts itself can be according to its special duty and optimization, thereby obtains improved whole structure.Because seal receptacle can be done necessary sideway movement, then for instance, leak free is flexible so big with regard to not needing, and so just can select leakproofing material from worn-down viewpoint (for example), improves its performance.
With reference now to accompanying drawing (only illustrate and understand the indispensable parts of the present invention),, introduce the preferred embodiment of method of the present invention and device in more detail.
Fig. 1 expresses from principle, has utilized on the wrapping machine of the inventive method and device, tabular packing is become the situation of individual packaging case.
Fig. 2 represents to be distributed in according to the present invention the part sectional view of the amplification of the sealing arrangement on the wrapping machine shown in Figure 1.
Wrapping machine shown in Figure 1 is the known in the past the sort of wrapping machine that board-like material is become the individual packaging case.Packing are a kind of ply woodes, and as a rule, its center is the carrying ply of paper, and each side of ply of paper all is coated with the thermoplastic material of which floor thin anti-fluid seepage; Polyethylene for example.When making when being used for containing the packing chest of aseptic material, adopt sterile packaging laminate, which floor for example airbond material of aluminium case class this ply wood except above-mentioned carrying ply of paper and plastic layer, also comprises.Before packaging laminate is become the individual packaging case, make packaging laminate earlier through sterilizing unit, for example, on aseptic condition, carry out above-mentioned conversion and filling then through filling the trough of peroxide or other similar substance.This technology and realize the wrapping machine of this technology is that this professional one skilled in the art is known, therefore here need not to describe in detail.
According to Fig. 1, can be well understood to very much, packing are to deliver to wrapping machine 1 as the form of how volume letter 2, and volume letter 2 is supported, so that it is rotatable in the material storing box of wrapping machine.Packing timber flitch 3 comes out from material storing box, through a series of guide rolls 4, rises to the top of this machine, rolls 5 through turning to here, is to continue vertically downward through this wrapping machine then basically.By the various folding and drip molding of arranging along the motion path of plate of material 36,7, packing timber flitch 3 is downward through during this machine at it, become tubular continuously, in this process, two longitudinal edge leads relative to one another, and seals, and has so just made the close property of vertical liquid leak free tubes of material 8.Two longitudinal edges are sealed, by realizing by 9 heat supplies of hot air nozzle, utilize this method, the part that is positioned at the thermoplastic layer at edge is melted, with two longitudinal edge force togethers, cool off simultaneously, so then, this thermoplastic layer just connects together each other, thereby obtains the joint of needed anti-fully fluid seepage.
Then, through the filling pipe 10 that the upper, open end of the packaging material tube 8 of associating is inserted, material is imported the lower end of formed packaging material tube 8.Then, this filling tube is to enter this packaging material tube with one heart downwards substantially, and reserves certain distance on this pipe lower end.In a distance of filling below pipe 10 open ends, in each side of packaging material tube 8, all be furnished with and be shaped and sealing-in clamping plate 11,12, it is fit to packaging material tube 8 is processed each other under to situation about using.For simplicity's sake, a cover only is shown in the drawings is shaped and the sealing-in clamping plate, but in fact, more clamping plate are arranged usually, they are replaceable, and packaging material tube is processed.
Sealing-in clamping plate 12 treat this in opposite directions, crank motion continuously separately, so that with uniform interval, along compression of horizontal sealing-in district and sealing-in packaging material tube 8, simultaneously, sealing-in clamping plate 12 are crank motion vertically also, when they were in upper end position, they moved toward each other, compressed and blocked packaging material tube.In the process motion of wrapping machine subsequently, the wall of packaging material tube is compressed and is welded together, simultaneously, packaging material tube reach certain distance, its distance is equivalent to the length of each packing chest.During bottom offset, they are swung toward each other at two shaping clamping plate 11, and near the part of the packaging material tube 8 of Sealing jaw 12 tops, the part is compressed to be shaped and is required form, and this example is to have the cushion form of square-section substantially.When Sealing jaw 12 arrived its lower position, by the regional open circuited while of horizontal cutting knife along the Sealing jaw compression, shaping clamping plate 11 were arranged once more in tubes of material, the result, and a packing chest 13 that has formed is just thrown off from packaging material tube.After Sealing jaw 12 is moved away from each other, by the help of a conveyer (illustrating), this packing chest is relayed, so that continue processing and last the shaping, so just produce (this example is parallelepiped) packing chest of required form.
As described in previously, required object is transported to the lower end that packing is filled pipe 8 through filling pipe 10, in the continuous operation process of wrapping machine, partially filled packing chest is made into, and make such packing chest, perhaps material is carried with such speed continuously, make when transportation work is interrupted by the pressing of pipe and sealing-in operation, each the individual packaging case that forms has been filled with required amount, and perhaps pipe one is finished sealing-in, just by part object of conveying aequum.
Make the packing chest of complete filling, with regard to meaning air space is arranged certainly in the upper end of packing chest.When the lower end with packaging material tube becomes the individual packaging case, must in a suitable manner air or gas be enclosed in the packaging material tube, because otherwise, just can not obtain to be the needed equilibrium of pressure of processing that is shaped satisfactorily.No matter air space occurs, wrapping machine must comprise a sealing arrangement 14 in order to produce necessary equilibrium of pressure, the sealing device be distributed in fill pipe 10 around, and certain distance is arranged apart from the open end of filling pipe, the lower end and the ambient atmosphere packing of tubes of material are opened.Sealing device 14 is by filling that pipe 10 supports and by thereon, forms filling pipe 10 and to the sealing of packaging material tube inboard.Except that filling pipe 10, also have a gas piping 15, stretch into the sealing device, with gas, for example body of inertia or air are transported to the closed lower of packaging material tube.Clearly visible by Fig. 2, the following space of this gas piping 15 and sealing arrangement communicates, thereby suitable pressure medium can be transported to the bottom of the packaging material tube 8 that separates by sealing arrangement, thereby the pipe lower end be shaped and applanation process in, it can remain under the suitable pressure.The gas piping 15 of delivery pressure medium, pipe 10 is the same with filling, and manages 10 through the upper, open end and the filling of packaging material tube and stretches into packaging material tube and sealing arrangement 14 abreast downwards.If need, carry other delivery pipe of inhomogeneity material for example etc., also can similarly stretch into this tubes of material downwards and by sealing device 14, but this is on figure and not shown.
Clearly visible from Fig. 2 of the amplification that shows sealing arrangement and part sectional view, the sealing device comprises sealing guide piece 16 divided into two parts, on it, following two-part suitable mode for example by
Nail connects (not going out among the figure) and links to each other with filling pipe 10.The top of guide piece 16 is used for fixing loses pipe 15 lower end, and a conduit 17 is arranged, and the space that is used for being positioned at below guide piece 16 tops in lower end and the packaging material tube of just gas piping 15 communicates.
Between upper and lower two parts of sealing guide piece 16, the space of an annular slot type is arranged, a seal receptacle 18 is distributed in wherein also removable.Gap between two parts of sealing guide piece 16 is bigger slightly than the corresponding size of seal receptacle 18, and in other words, sealing seat 18 radially reaches axially all removable.But its axial motion only is limited in the scope of a few tenths of millimeter.Sealing seat 18 has a centre hole 19, and its diameter is bigger than the external diameter of filling pipe 10 significantly, and the result filling between pipe 10 and the seal receptacle 18, forms passage 20, so that pressure medium is gone into through gas piping 15 and conduit 17 surface currents.Around centre hole 19, arranging protrusion 21 with even interval, so that limit seal receptacle 18 in a suitable manner with respect to the radial motion of filling pipe 10.
Downside at the sealing guide piece 16 on top has sealing plane 22, this face be positioned at sealing arrangement 18 similar plane go up table on, and some distances are arranged.Upper surface at seal receptacle 18 does not have an outstanding annular seal 23, this annular seal 23 can be made by for example four fluorine ethylenes, its diameter surpasses the diameter of centre hole 19, so that can make pressure medium not enter the opened upper end end of tubes of material conduit 17 and the sealing of the passage between the centre hole 19 in the seal receptacle 18 that is in the sealing guide piece 16 through the space effluent face between seal receptacle and the upper guide 16.
Circumference at seal receptacle 18, have by for example silaatic ring seal 24 of making of flexible material, sealing has lip downwards on one day, and this lip is pressed in the inside face of packaging material tube, this is because the flexibility of sealing material is because the pressure in the tubes of material lower end on the one hand on the one hand.
For clarity sake, the structure that is shown in the sealing arrangement of the present invention of Fig. 2 has been simplified, and it is all not shown to install, dismantle and adjust the element of this device.But will be understood that these elements are arranged, so that can for example pull down lower seal guide piece 16 from filling pipe 10, thus the gap between replacing seat envelope seat, sealing and the adjustment two parts sealing guide piece 16.
When the packing chest 13 that utilizes wrapping machine and sealing arrangement fabrication portion of the present invention to fill, as previously mentioned, the reel 2 that has packing 3 be placed wrapping machine.Packing 3 are upwards through wrapping machine, when it by be positioned at the wrapping machine upper end turn to roller 5 after, after just substantially vertically sealing, two vertical bandings by cardboard are connected together simultaneously, and become tubular.After being connected together, fluid-tight packaging material tube 8 is just by sealing arrangement 14, thereby sealing device 14 just limits the enclosure space that is in the tubes of material lower end, at this moment with gaseous pressure mediums, through gas piping 15, import in the enclosure space of packaging material tube 8, thereby this space is under the pressure.Will be for example filtrated air or casual gas equipressure medium at maximum pressure 0.3 crust, the preferably pressure of 0.15 crust input down, this pressure is as the lower end of packaging material tube being sealed and the required equilibrium of pressure of processing that is shaped is fit to.
The conveying of gas is passed through gas piping 15 shown in Fig. 2 arrow 25, the conduit 17 in the back seal guide piece 16, and the inside of sealing member 23, the passage 20 of centre hole 19 and seal receptacle 18 lower surfaces flows out.In this process, gaseous pressure mediums can act in seal receptacle and the sealing thereof, although seal receptacle has its weight like this, although because of sealing 24 inboards that lean against packaging material tube, and tubes of material constantly moves downward and produce the downward pressure that acts on the seal receptacle 18, can make that also sealing member 23 is pressed on the sealing surface 22.The contact pressure value of sealing member 23 and sealing surface 22, depend on the medium that is under pressure the upward pressure effect seal receptacle downside and be subjected to size poor between the upper side of seal receptacle of downward pressure effect.In this respect, will select the diameter of sealing member 23 exactly, make the surface size difference can produce the required power that makes progress, and this power is greater than by the motion of tubes of material and the power that weight produced of seal receptacle 18.The seal receptacle 18(that the pressure effect comprises sealing 24) the area of downside and the area of its upper side between the exemplary value of ratio can be 4: 1, mention absolute figure, for for example tubes of material of about 100 mm dias (making the packing chest of approximately containing 1 liter of material), the area of lower surface can be 58 centimetres
2, the area of upper surface can be 13 centimetres
2, at this moment sealing member 23 approximates 0.5 crust with the contact pressure of sealing surface, has found that this force value can provide gratifying leakproof safety performance.Because this structure of the present invention, sealing member 23 can accurately be determined with the contact pressure of sealing surfaces 22 and select, thereby the leak tightness that acquisition needs, seal receptacle 18 can be enough to again radially move simultaneously, although thereby between the filling pipe 10 of tubes of material 8 and supporting sealing device 14 relative radial motion is arranged, still can provide good sealing.By selecting as far as possible little contact pressure, seal receptacle 18 will be easy to sideway movement, and in other words, sealing 24 very big with kinetic force, thereby sealing effectiveness the best are also reduced because of the wearing and tearing that produce that contact with the packing tube wall that moves simultaneously.Need reduce with the requirement of flexible material because seal 24, just can note the leak free abrasion resistance when selecting material more, this can further improve sealing function again.
Facts have proved that sealing device effect of the present invention is very good, and the sealing device is so that might with reasonable and economic method, make partially filled packing case with tubular material for the first time.
Claims (10)
1, on a kind of wrapping machine, plate of material is become tubulose, this pipe moves downward, constantly it is laterally flattened and seals, utilize sealing arrangement simultaneously, bottom and its opened upper end end packing of this pipe are opened, thereby tabular packing are become a kind of method of packing chest, it is characterized in that, sealing device (14) comprises a seal receptacle that moves radially (18), sealing (24) is arranged on its circumference, sealing (24) leans against the inboard of tubes of material (8), the gaseous pressure mediums that is delivered to tubes of material (8) bottom acts on the seal receptacle (8) like this, makes sealing seat pressurized and leans against on the sealing surface (22) that is positioned at the top, can hang down the anti-downward application force that acts on sealing and the seal receptacle.
2, a kind of method according to claim 1, it is characterized in that the hole of pressure medium in sealing seat (18) is transported to the bottom of this tubes of material (8), the downward composite force that is produced by pressure medium and packaging material tube (8), the application force that makes progress that the pressure medium in the part of sealing than packaging material tube bottom acts on the seal receptacle (18) is little.
According to a kind of method of claim 1 or 2, it is characterized in that 3, the pressure of this pressure medium is 0.3 crust to the maximum, be preferably 0.15 crust.
4, on following this class wrapping machine, realize a kind of device of an above-mentioned claim or the described method of a plurality of claims, such wrapping machine becomes one by one packing chest with tubular packaging material, and a sealing arrangement (14) is arranged in tubes of material (8), sealing device (14) goes out an osed top space in the lower end packing of tubes of material (8), it is characterized in that, sealing device (14) has a fixing sealing guide piece (16) that is arranged in tubes of material (8), this guide piece (16) is supporting a movably seal receptacle (18), the circumference of sealing seat has annular seal (24), and this annular seal (24) leans against on the inwall of tubes of material (8).
5, a kind of device according to claim 4 is characterized in that, sealing guide piece (16) has two parts, is arranging seal receptacle (18) between these two parts, and it can be moved.
6, a kind of device according to claim 5 is characterized in that sealing gap between two parts of guide piece (16) greater than the corresponding size of seal receptacle (18).
7, according to the described a kind of device of one or more claims of claim 4～6, it is characterized in that, sealing guide piece (16) and seal receptacle (18) have pressure medium channel (17,19,20), these passages extend in annular seal (23), and this annular seal (23) is between seal receptacle (18) and sealing guide piece (16).
8, a kind of device according to claim 7 is characterized in that, sealing member (23) is being pressed under the effect of pressure medium on the adjacent seal faces (22).
9, according to the described a kind of device of one or more claims of claim 4～8, it is characterized in that, bear the skin area of the seal receptacle (18) that pressure medium acting on from below, the inboard skin area of sealing member (23) that pressure medium acting on from above is much bigger than bearing.
10, a kind of device according to claim 9 is characterized in that, its difference of pressure makes the sealing member (23) and the contact pressure of sealing surface (22) be approximately 0.5 crust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85106228 CN1006290B (en) | 1985-08-19 | 1985-08-19 | Method and arrangement for packing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85106228 CN1006290B (en) | 1985-08-19 | 1985-08-19 | Method and arrangement for packing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85106228A true CN85106228A (en) | 1987-02-18 |
| CN1006290B CN1006290B (en) | 1990-01-03 |
Family
ID=4794964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85106228 Expired CN1006290B (en) | 1985-08-19 | 1985-08-19 | Method and arrangement for packing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1006290B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077535C (en) * | 1996-07-15 | 2002-01-09 | 四国化工机株式会社 | Package machinery |
| CN100509565C (en) * | 2007-10-16 | 2009-07-08 | 吴章荣 | Rectangle beverage package box preliminary shaping method and device for vertical type liquid packing machine |
| CN103154376A (en) * | 2010-07-16 | 2013-06-12 | 罗兰·德赖尔 | Device for filling granular, pulverulent and free-flowing materials into a container made of geotextile material |
| CN1875278B (en) * | 2003-10-28 | 2013-08-14 | 拜奥梅留克斯公司 | Sealer for test sample devices |
| CN101734383B (en) * | 2008-11-24 | 2014-03-05 | 利乐拉瓦尔集团及财务有限公司 | Packaging unit for producing sealed packages of food product |
| CN108725863A (en) * | 2017-04-19 | 2018-11-02 | 利乐拉瓦尔集团及财务有限公司 | Forming ring for packaging material |
-
1985
- 1985-08-19 CN CN 85106228 patent/CN1006290B/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077535C (en) * | 1996-07-15 | 2002-01-09 | 四国化工机株式会社 | Package machinery |
| CN1875278B (en) * | 2003-10-28 | 2013-08-14 | 拜奥梅留克斯公司 | Sealer for test sample devices |
| CN100509565C (en) * | 2007-10-16 | 2009-07-08 | 吴章荣 | Rectangle beverage package box preliminary shaping method and device for vertical type liquid packing machine |
| CN101734383B (en) * | 2008-11-24 | 2014-03-05 | 利乐拉瓦尔集团及财务有限公司 | Packaging unit for producing sealed packages of food product |
| CN103154376A (en) * | 2010-07-16 | 2013-06-12 | 罗兰·德赖尔 | Device for filling granular, pulverulent and free-flowing materials into a container made of geotextile material |
| CN103154376B (en) * | 2010-07-16 | 2016-01-27 | 罗兰·德赖尔 | For the equipment to filler particles shape, Powdered pourable material in the container be made up of geotextile materials |
| CN108725863A (en) * | 2017-04-19 | 2018-11-02 | 利乐拉瓦尔集团及财务有限公司 | Forming ring for packaging material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1006290B (en) | 1990-01-03 |
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