SE178423C1

SE178423C1 -

Info

Publication number: SE178423C1
Authority: SE
Publication date: 1962-01-01

Description

Uppfinnare: A Fluke Prioritet begard frem den 16 och 26 maj 1955 (F6rbundsrepubliken Tyskland) Foreliggande uppfinning avser en pa nytt satt vikt pase av termoplastmaterial eller av Tried termoplast overdraget material, jamte ett maskinellt forfarande f8r framstallning av dylika pasar, varvid man for de erforderliga fogforbindningarna i langsfogen och i bottnen nyttjar den termoplastiska egenskapen has termoplastskikten for svetsning, eller d8. fraga är om sammanfogning av ett termoplastskikt och ett cellulosaskikt varmklistring. Inventor: A Fluke Priority Proposed On May 16 and 26, 1955 (Federal Republic of Germany) The present invention relates to a re-weighted phase of thermoplastic material or of Tried thermoplastic coated material, as well as to a mechanical process for making such passes, for which the necessary the joint connections in the longitudinal joint and in the bottom use the thermoplastic property of the thermoplastic layers for welding, or d8. question is about joining a thermoplastic layer and a cellulose layer hot-paste.

Uppfinningen avser att astadkomma for-bathing av dylika pasar och av desammas framstallning ph en arbetscylinder, varvid ifragavarande ph' sar uppvisa mot paslivets plan flatvikt botten och Oro fullstandigt angtata. The invention is intended to provide for-bathing of such passes and of their production ph a working cylinder, wherein the ph's in question have a flat-weight bottom against the plane of the pass-life and are completely assumed.

I samband med tillverkning av pasar air termoplastmaterial ar det farut kant att Mama sa, att de kanter av pasamnet, .som skola forbindas med varandra, utvikas ur pasbottnens plan och laggas mot varandra i ett mot bottenplanet vinkelratt plan samt hopsvetsas. Om man emellertid, sasom vanligen Or fallet vid maskinell tillverkning, paborjar bottnens bildande genom att utforma bottenkvadraten och lagga denna platt mot de i langdriktningen tillforda pasliven pa en arbetscylinder, sá komma de kanter, som skola forbindas med varandra, att forlopa i paslivets langdriktning och kunna till foljd av arbetseylinderns krokning icke vikas rakt uppat och laggas mot varandra. Den maskinella framstallningen av bottnen pa dylika phsar med hjalp av en arbetscylinder erbjuder likval en hel rad fordelar. Enligt uppfinningen foreslas darfor en vikningsform och ett maskinellt framstallningsforfarande far bottnen till pasar av termoplastmaterial, enligt vilka framstallningen pa enkelt och korrekt salt kan genomforas under utvikning och hoplaggning av material kantern.a pa en cylinder, varvid man uppnar en fullkornligt tat tillslutning och dessutom en avsevard materialbesparing. In connection with the manufacture of fitting air thermoplastic material, it is important that Mama said that the edges of the fitting material, which are to be connected to each other, are developed from the plane of the fitting bottom and laid against each other in a plane perpendicular to the bottom plane and welded together. However, if, as is usually the case in mechanical manufacturing, the formation of the bottom is started by shaping the bottom square and laying it flat against the longitudinally supplied fitting on a working cylinder, then the edges which are to be connected to each other will extend in the longitudinal fitting and as a result of the hooking of the working cylinder cannot be folded straight up and laid against each other. The mechanical production of the bottom of such phases with the aid of a working cylinder offers a whole range of advantages. According to the invention, therefore, a folding mold and a mechanical manufacturing method are proposed for the bottom to fit thermoplastic materials, according to which the production of simple and correct salt can be carried out during unfolding and assembling of the material on the edge of a cylinder, thereby obtaining a full-grain seal and also a considerable material savings.

Uppfinninefen lampar sig saval for pOsar med sidoveck air s. k. self-up»-typ, som for pasar utan sidoveck, av s. k. »kanister»-typ. The inventor lights himself saval for bags with side-fold air so-called self-up type, which fits without side-folds, of the so-called "canister" type.

Enligt uppfinningen utgar man frau banor av termoplastfolie eller med termoplast OVerdraget material, air vilka banor en slang ph i och for sig kant ,satt bildas kring-formplatar. Vid pasar med sidoveck forlagges langsfogen i de 'slangytor, sum icke innehalla nagra sidoveck, och varmklistras med i och for sig kan da hjklpmedel, varvid formplatarna forhindra hopklistring med andra lager av slangen, varVenom en belt maskinell framstallning med stor produktionskapaeitet mojliggores. Frhn slangen avskiljas darefter de enskilda pasamnena och tillforas anordningen for bottnarnas bildande. According to the invention, webs are formed from thermoplastic foil or with thermoplastic coated material, in which webs a hose ph in and of itself edge is formed around forming plates. In the case of passages with side folds, the longitudinal joint is placed in the hose surfaces, which do not contain any side folds, and hot-glued with per se can then be aids, whereby the mold plates prevent sticking with other layers of the hose, thereby enabling a belt machine production with large production capacity. From the hose, the individual pass pieces are then separated and fed to the device for the formation of the bottoms.

Dessa avskilda slangstycken eller pasamnert anbringas p8. i och for sig kant satt pa en arbetscylinder fOr utformning av en bottenkvadrat i -vilken pasamnets bottenoppning Riper i pasamnets langdriktning. Darefter sparras eller spannes denna forst i pasamnets langdriktning lopande bottenoppning ut hell i riktning mot pasamnets sidokanter och salunda tvars mot amnets langdriktning, sa att Oppningens hada kantpartier i varje punkt an sluta sig till varandra och bilda en fog, soul Riper parallellt med arbetscylinderns axel och salunda latt kan bildas ph cylindern. These separate pieces of hose or fitting are applied to p8. per se edge sat on a working cylinder for the design of a bottom square in which the bottom opening of the fitting is scratched in the longitudinal direction of the fitting. Then the bottom opening running longitudinally in the longitudinal direction of the pass blank is poured or tensioned in the direction of the side edges of the pass blank and thus transversely to the longitudinal direction of the strip, so that the open edge portions of the opening join at each point and form a joint, soul Riper parallel to the working cylinder salunda easily can be formed ph cylinder.

PA bifogade rtining Oro de skilda stadierna -vid pasbottnens framstallning ph en arbetscylinder askadliggjorda, varvid fig. 1-15 hanfora sig till tillverkningen air en »self-up»-pase och fig. 16-30 hanfora sig till tillverkningen av en »kanister»-pase. PA attached rtining Concerns the different stages - in the manufacture of the passport base ph a working cylinder damaged, in which Figs. 1-15 proceed to the manufacture air a «self-up» phase and Figs. 16-30 hanfor themselves to the manufacture of a «canister» -pase.

Vid tillverkningen av en »self-up»-pase i en- 2—• — lighet med uppfinningen anbringas slangstyckeno. eller pasamnena pa vanligt satt pa arhetscylindern for bildande av bottenkvadraten, eller bottenrutan. Till skillnad Iran ett kant forfarande, enligt vilket det fOr astadkommande av en i amnets langdriktning 10- pande, uppvikt bottensvetsfog erfordras varandra overlappande hörnflikar, fOr vilkas bildande det kraves ett pasamne, vars bottenbildande parti ãr langre an sidove&ens dubbla djup plus det fOr bottenfogen erforderliga stycket, dimensioneras det for bildandet av bottenrutan tjanande slangstycket for »self-upv-pasen enligt uppfinningen pa sadant satt, att dess bottenbildande andparti endast motsvarar sidoveckets dubbla djup plus den avsedda bredden pa bottenfogen. Man erhaller dâ ett arbetsstycke av den i fig. 1 visade formen och med en tvarsnittsprofil Mugs linjen A—B i fig. 1, sadan som visas i fig. 2. Den i fig. 1 inritade pilen anger arbetsstyckets, pasamnets, rbrelseriktning pa arbetscylindern, vars periferiella krOkning salunda likaledes gar i den av derma pil angivna riktningen. In the manufacture of a "self-up" phase in accordance with the invention, hose pieces are applied. or the pasamnene in the usual way on the annual cylinder to form the bottom square, or the bottom window. Unlike in Iran an edge process, according to which in order to achieve a folded bottom weld joint in the longitudinal direction of the workpiece, overlapping corner flaps are required, for the formation of which a fitting is required, the bottom-forming portion of which is longer than the lateral double depth plus the required bottom. the piece, the hose piece serving for the formation of the bottom pane for the self-upv pass according to the invention is dimensioned in such a way that its bottom-forming duct only corresponds to the double depth of the side fold plus the intended width of the bottom joint. A workpiece of the shape shown in Fig. 1 is obtained and with a cross-sectional profile mugs the line A-B in Fig. 1, as shown in Fig. 2. The arrow drawn in Fig. 1 indicates the direction of movement of the workpiece, fitting workpiece on the working cylinder. , the circumferential curvature of which thus likewise goes in the direction indicated by this arrow.

I enlighet med uppfinningen upplyftas nu bottnens sidoflikar 1 och 2, t. ex. med hjalp av sugare 3 och 4, sá att utsparrningsorgan, säsom t. ex. de i fig. 7 med prickstreckade linjer visade utsparrningsfingrarna 5 och 6, kunna inforas i oppningen fOr att helt utsparra bottnen i riktning mot sidokanterna och utOver dessa, sisom visas i fig. 5, 6 och 7. Dan vid Midas triangulara, Over amnets sidokanter utskjutande vikningsflikar 12 och 13. Utsparrningsfingrarna 5 och & samt uppvarmningsbackarna 7 och 8 folja under sin paverkan av pasen med denna ett stycke langs den av arbetseylindern bestamda rorelsebanan. In accordance with the invention, the side flaps 1 and 2 of the bottom are now raised, e.g. with the aid of vacuum cleaners 3 and 4, so that recess means, such as e.g. the recess fingers 5 and 6 shown in dotted lines in Fig. 7 can be inserted into the opening to completely recess the bottom in the direction of the side edges and beyond them, as shown in Figs. 5, 6 and 7. projecting folding flaps 12 and 13. The recessing fingers 5 and & and the heating jaws 7 and 8 follow under their influence of the pass with this a distance along the path of movement determined by the working cylinder.

I stallet for utsparrningsfingrarna kan man ocksa anvanda verktyg, vilka efter det forberedande oppnandet fran bada sidorna genom utifran utovat tryek klamma ihop pasamnets botteniippning pa bredden, exempelvis mot en i bottnens mittplan tillfalligt placerad platta, sa att horninslagsflikarna p0. detta satt sträckas ut i riktning mot pasamnets sidokanter och kanipartierna 9, 19 anlaggas mot varandra. Instead of the recessing fingers, it is also possible to use tools which, after the preparatory opening from both sides by external pressure, clamp the bottom opening of the fitting together on the width, for example against a plate randomly placed in the middle plane of the bottom, so that the horn impact tabs p0. this set is extended in the direction of the side edges of the pass blank and the rabbit portions 9, 19 are abutted against each other.

Nu kunna de i fig. 9 antydda, med 7 och 8 beteeknade uppvarmningsbackarna bringas att omgripa och under utovande av tryck och varme forena de hada mot varandra anliggande, uppresta och i cylinderaxelns riktning 10- pande kantpartierna kring botterioppningen. Now the heating jaws indicated in Fig. 9, denoted by 7 and 8, can be brought to grip and, under the application of pressure and heat, unite the abutting, raised and in the direction of the cylinder axis 10 the edge portions around the butter opening.

Harefter nedvikes forst den fardigsvetsade bottenfogen 11, sasom visas i fig. 11 och 12, foretradesvis mot arbetsstyckets rorelseriktning, mot pasamnets botten, varefter de vid utsparrningen av pasamnets ande bildade triangulara harnvecken 12 och 13 jamte de pa dessa liggande andpartierna av den nedvikta bottenfogremsan 11 vikas in mot pasbottnens mitt, sasom visas i fig. 13, varefter bottnen I tvarsnitt har den i fig. 14 visade profilen; darvid fastas bottenfogremsan 11 och hornklaffarna 12, 13 pa bottnen, exempelvis ge- nom. klistring. Nedvikningen av den hop svetsadefogen 11 och invikningen av de triangulara hornpartierna 12 och 13 kan utforas med hjalp av stationara organ. Next, the ready-welded bottom joint 11, as shown in Figs. folded in towards the middle of the fitting bottom, as shown in Fig. 13, after which the bottom has a cross-section in the profile shown in Fig. 14; in this case, the bottom joint strip 11 and the horn flaps 12, 13 are fixed to the bottom, for example through. sticking. The folding down of the assembled weld joint 11 and the folding in of the triangular horn portions 12 and 13 can be performed with the aid of stationary means.

Enar pasbottnen redan genom varinklistringen resp. svetsningen av bottenoppningens strackta kantpartier blivit fullkomligt tat, Or pasen anvandbar i denna form. Man kan emellertid ocksa i stallet for fastklistringen av den. omvikta fogremsan 11 och hornpartierna 12, 13, eller fiirutom denna fastklistring, pa i och for sig kant satt paklistra ett bottentackblad 14 pa. den fardigvikta bottnen for att darigenom fasthalla hornveeken 12, 13 jamte fogremsan 11 i avsett lage pa bottnen och samtidigt ge den fardiga pasen ett mera tilltalande utseende. Unifies the passport base already through the goods pasting resp. the welding of the stretched edge portions of the bottom opening has been completely taken, Or pasen usable in this form. However, it can also be used instead of sticking it. folded the joint strip 11 and the horn portions 12, 13, or in addition to this gluing, on a per se edge, glued a bottom roofing sheet 14 on. the finished folded bottom in order to thereby hold the horn wick 12, 13 together with the joint strip 11 in the intended layer on the bottom and at the same time give the finished fit a more attractive appearance.

Vid tillverkning av en »kanister»-pase enligt uppfinningen (se fig. 16-30), utgar man likaledes fran en. langdsvetsad slang, fran -vilken de enskilda slangavsnitten eller pasamnena avskilj as och i langdled anbringas pa arbetscylinderns omkrets. Vid den ande som skall tillslutas uppvikes en bottenkvadrat med herrnflikar 1 och 2, varvid det for bottenkvad- ratens bildande avsedda slangpartiet Or sit dimensionerat, att det svarar mot bottnens bredd plus bottenfogens avsedda bredd (fig. 16). In the manufacture of a "canister" phase according to the invention (see Figs. 16-30), one also starts from one. longitudinally welded hose, from which the individual hose sections or fitting sections are separated and longitudinally applied to the circumference of the working cylinder. At the spirit to be closed, a bottom square with male flaps 1 and 2 is folded up, the hose section Or intended for the formation of the bottom square being dimensioned to correspond to the width of the bottom plus the intended width of the bottom joint (Fig. 16).

HOrnflikarna 1 och 2 upplyftas nu, exempelvis med hjalp av 'sugare 3 och 4 (fig. 18 och 19). Harvid Midas de i fig. 18 prickstreekat antydda vikningslinjerna 15 och 16 saint 17 och 18, vilkas lage kan fixeras med hjalp av begransningsskenor eller linjaler 19 och (fig. 19). Dessa 1 pasamnets langdriktnino-b 10- pande vikningslinjer 15, 16 och 17, 18 befin- na sig pa ett avstand fran amnets narbelagna sidokanter, vilket Or lika med bottnens halva bredd. The corner flaps 1 and 2 are now raised, for example by means of suckers 3 and 4 (Figs. 18 and 19). In this case, the folding lines 15 and 16, saint 17 and 18, which are indicated by dotted lines in Figs. These longitudinal folding lines 15, 16 and 17, 18 of the pass blank are located at a distance from the adjacent side edges of the blank, which is equal to half the width of the bottom.

I den salunda fOriippnade bottenkvadratens oppning inforas darefter isfirforings- eller ut- sparrningsorgan, t. ex. de i fig. 22. med prick- streckade linjer antydda utsparrninasfingrarna 5 och 6, vilka utsparra eller straefc.a botten- oppningen i tvarled (fig. 22), varvid triangulara, frau vikningslinjerna 15, 16 och 17, 18 utgaende hornveck 12 och 13 (fig. 29) bildas, vilka lagga sig utanpa bottenkvadratens undervarande, lika stora, fasta hornpartier. In the opening of the saliva formed in the bottom square, ice lining or recess means are then inserted, e.g. the recessed fingers 5 and 6 indicated by dotted lines in Fig. 22., which recess or straighten the bottom opening transversely (Fig. 22), the triangular, folding horn folds 12, 16 and 17, 18 projecting horn folds 12 and 13 (Fig. 29) are formed, which lie outside the lower, equally large, fixed horn portions of the bottom square.

Nu kunna, sasom visas i fig. 24, de med 7 och 8 betecknade uppvarmningsbackarna omgripa de hada mot varandra anliggande, upp- resta kantpartierna 9 och 10 kring bottenopp- ningen och sammanfoga dessa genom utovande av tryck och tillforsel av varme. I anslut- nincs hartill vikes bottenfogremsan 11 ned oclhornvecken 12, 13 in mot pasbottnens mitt, sasom visas i fig. 26-30, saint fastklistras eller Overldistras med ett tacklalad 14, sitsom beskrivits i det foregaende. Now, as shown in Fig. 24, the heating jaws denoted by 7 and 8 can grip the adjacent abutments, raise the edge portions 9 and 10 around the bottom opening and join them together by applying pressure and supplying heat. In connection therewith, the bottom joint strip 11 is folded down and the horn folds 12, 13 towards the center of the fitting bottom, as shown in Figs. 26-30, are saintly glued or Overldistras with a tacked bar 14, the seat described above.

Uppfinningen innehar ett avsevart tekniskt — — framsteg inoni forpacluiingsindustriens da det i enlighet med uppfinningen nu blir mojligt att pa rationellt salt maskinellt framatalla absolut angrtata pasar med genom hopsvetsning under varme tillsluten bottenoch av angtata termoplastmaterial eller med termoplast overdragna, modema pasmaterial, sã att dessa pasmaterials konserverande egenskaper kunna utnyttjas aven i samband med p. billigt satt tillverkade pasar. Genom ifragavarande framstallningsforfarande erhallas pasar i plattvikt form, vilka staplas tatt och darigenom aro 15tta att transportera frail tillverkningsstallet till forpackningsstallet. The invention has considerable technical progress in the packaging industry, as in accordance with the invention it is now possible to machine-form absolutely prepared passes with rationally sealed bottoms and heat-sealed thermoplastic materials, such as thermoplastic coated materials. preservative properties can also be utilized in conjunction with p. cheaply made pasar. By means of the manufacturing process in question, passes are obtained in flat-weighted form, which are stacked and thereby can be transported from the manufacturing stable to the packaging stable.

Claims

Patent claim:

1. Procedure for making air passes of the pass blank, consisting of flat-folded hose or sleeve sections with or without folded side pleats and existing air thermoplastic material or Tried thermoplastic coated material, can be clarified, that a portion of the passan clock with a length equal to the width of the bottom, matt in the longitudinal direction of the fitting, plus the intended width of a welded bottom joint strip (11) per se sitting at its leading edge is drawn and extended to a bottom portion and that the thereby formed corner flaps (1, 2 in Fig. 1 ° eh) Fig. 16) is raised and recessed transversely to the longitudinal direction of the pasamn, in the direction of the side edges of the same, so that the edge portions of the bottom opening, (9, 10 in Fig. 9 reap. Fig. 24) will run transversely to the longitudinal direction of the pasamn and pressed against each other and thereby pressed up to the plane of the free phsamnet perpendicularly upright layer, after which they are connected to each other by means of pressure and heat to form a welded bottom joint (11).

2. A method according to claim 1 for the manufacture of air passes with folded side folds (Figs. 1-15), characterized in that the urine flaps (1, 2) are completely recessed laterally, in front of the side edges of the pass blank.

3. A method according to claim 1 for the manufacture of air fits without folded side folds, (Figs. 16-36), characterized in that the corner flaps (1, 2) along limiting rails or rulers (19, 24) around lines of rotation (15, 16 reap. 17, 18) is recessed laterally up to the side edges of the fitting (fig. 20).

4. A method according to any one of the preceding patent claims, characterized in that the opened horn flaps (1, 2) are stretched out in the direction of the side edges of the pashmine by an external pressure from both sides, possibly exerted against a plate temporarily arranged in the middle plane of the bottom.

5. A method according to any one of the preceding patent claims, characterized in that first the welded bottom joint (11), ferretrades in the direction of the pasamn's direction, and then they had by the recess of the pasamn's threateningly formed triangular horn folds (12, 13) the folded-down bottom joint (11) is folded in towards the bottom and fastened there, for example by gluing together.

6. A method according to claim 5, characterized in that the triangular horn folds (12, 13) folded towards the bottom and the flat-folded bottom joint (11) with or without gluing to the bottom are fastened - thereby having an in and out edge bottom roof blade (14) '.

7. Pase or the like of thermoplastic material with a bottom folded towards the plane of the fitting life, appearance in accordance with the method specified in any of claims 1-6, showing a bottom joint formed by welding together an edge strip formed by a transversely fully expelled fracture, the longitudinal joint of the pas life is coated in one of the hada surfaces, which do not contain any side folds. Cited publications: Patent documents from Sweden 90704; USA 2,152,323, 2,396,565, 2,648,263.