DE1890064U - CYLINDRICAL CONTAINER BODY. - Google Patents

Description

. B e se hr eibu η g _:

- ': .- ■. to the utility model ".--"".-

the company OTITEB- SHOE ΜΑ, ΟΗίΝ-ΕΚΓ- "COKEOEAIION in llemingtoii, lew Jersey, imä Boston, / Massaclrasetts, Y, St »America,. ',

- .. concerning ν "- .. ■ -." "■.

-. "Cylindrical Container Body"^; .- _:.

PRIORIT & Pt 31 * May 1961 - ¥, St.Amerika

The leuerng / refers to a cylindrical container body to the clad surface material, i.e. one on his both surfaces with a "covering ^ provided laser material.

It is known to make containers clad with Metallfolien.ver; fibrous material for. Packing liquids such as fruit juices and the like, .. to use in which the cylindrical container body by an adhesive connection between the overlapping I sent the with. Metal foil clad fiber ;.

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material is connected. This adhesive connection is in Hereafter referred to as the side seam. As a result of the connection a hot glue when making, the side seam, became a commercially acceptable production speed achieved sufficient, "however, which remains on the inside of the overlapping Edge parts of the fibrous material exposed edge free and is therefore free from the effects of the liquid in the ■ ■ finished container exposed. Attempts have already been made to find that "\ to prevent the soaking of this edge caused by the liquids by applying strips to cover this edge Edge and the adjacent parts of the metal foils were applied. In addition, you have a fiber material core Sheet material used, in which the coming to lie in the interior of the container body edge completely through the Metal foil wrapped. Is «These measures and the devices used were expensive and time-consuming * In contrast, the purpose of the innovation. a cylindrical container body to train; in which the by soaking the Edge - evoked from the surface material. Difficulties eliminated are" . . : ■. ■ -

From a sheet material having a fibrous core and impermeable to the Itagen -Oberflachen of the fibrous core, -wherein the edge parts des'Flächenmaterials; for this purpose the ¥ _v euerung- from a-cylindrical container body is by.

thermoplastic. Adhesive to each other in the overlapping state "are attached so that according to the main feature of the!" to prevent the drenching caused by leaks of the fiber core of the sheet material on the inside of the container body / located edge the edge with a continuous body of thermoplastic resinous material · covered, extending from the edge part of one of the impermeable Itagen around the edge up to an edge part of the other impermeable layer extends. Further features of the furnace are characterized by the fact that the edge of the area measure. terials enclosing continuous bodies of thermoplastic resinous material in contact with the edge overlapping edge part of the surface material is, as well as in that that the edge parts of the sheet material fit into one another lap-holding, thermoplastic adhesive engages the continuous body of the thermoplastic, resinous material extends and. ^ together, hardened with this to form a continuous seal.

In the following, the control is illustrated, for example, on the basis of a schematic Drawings explained, whereby all details of the description and drawings are essential for the innovation *

In the drawings is -. . ".-" ".; .-;

Pig, 1 a ^: perspective view, partially crawled away, of a device for producing the new container body, ■. . ■ "-..- ■""■ ....

Fig * 2- a; after. Line II - II of Fig * 1 guided, im

Cross-sectional view shown on a somewhat enlarged scale des to manufacture: the container body ^ ver. : applies sheet material with impermeable upper - surface layers, -; . ■

3 shows a view shown on a slightly enlarged scale. -; the one used to apply the edge sealant to the edge of the clad sheet material. Parts,. ■■; - -;.; ■■■■. ■ - ■■. '■■. ^::

Fig. 4 is guided along the line IV - IV of FIG - Λ- looks at the section shown on a larger scale, - in which the edge seal is shown on the edge of the surface material. . -, -.... "

FIG. 5 shows a sectional view on a somewhat enlarged scale, according to the line V - V of the figure. 1, and. .

Fig »6 shows a line VI - VI der.Fig. 1 guided sectional view in which the edge seal and the adhesive connection of the overlapping parts of the lined sheet material is shown in the finished container body. ·. : - "■ -....,.. ^:

The new container body in the present example forms the cylindrical part 16 (Fig. 1) of liquids such as e.g. ■ Fruit juices, receiving containers .. "-."

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To the; Manufacture of the new container body has a device according to. Fig .; 1 stand 18 in which workpieces 20 in the form lying piled up of clad sheet material »As in; Fig ;. 2, the workpieces 20 contain a core 22 in the form of a fiber board, a cardboard card or the like, fibrous surface material with outer layers 24 made of impermeability Material such as e.g. metal foils. . - - "-.-- ■ -."

In the case of the manufacture of fruit juice containers The metal foils usually have a coating on the parts 20 made of vinyl resin, e.g. * from a! solution in. a volatile,. organic Solvent applied polyvinyl chloride. the Coatings can also consist of shellac or nitrocellulose. The application of the impermeable outer layers 24 to the fibrous materials 22 does not form part of the hiring and is therefore not described, but it should be mentioned that aluminum foil is attached to the fiber core 22 by means of polyvinyl acetate. Although the workpieces 20, as already mentioned, 'impermeable Have outer layers 24, the invention is not based on a metal film covering provided workpieces limited. ■. .-

. In each case the lowermost of the workpieces 2.0 is pushed on a slideway 26 and through ^nieht: .Vorschubmittel shown, such as a driver, - along the slideway. 2-6 moved forward »V The surface material can of course _: also from a Holle -

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peeled off and then cut into individual workpieces 20. The workpieces are advanced along the slide 26 that an edge 28 of the workpieces .20 is passed through a slot 30 in an edge seal applicator 32 «The edge seal applicator 32 carries the" sealing agent on the workpieces 20 in the form of a continuous body ".. pers 34, which as in 35 ¹ Ig. . 4, check from an edge portion of the surface of the outer layer 24 "to the surface of the outer layer 24 on the opposite side of the workpiece ¹ 20 .erstreckt .. Thus, the body 34 forms a um.die edge 28 of the outer BE REDUCED 24 and the core 22 lying around. it. seal. '

The edge sealant is the edge seal application

from an electrically heated melting device 35. device 32 / supplied, which is designed so that it removes a strand 36 of the sealing agent by means of gate feed rollers 37 from an orratsrOlle 33 and introduces it into a passage 38. The / strand 35 is melted in the passage 38 and passes through an arm: 39 to a mouthpiece.40, The mouthpiece $ 0 ^: contains spaced plates 42. The edges of the plates 42 form the slot 30 and together with the arm 39 a tapered one Fold 44 of substantially rectangular cross-section. Those inserted into the slot 30. Edges.der. Workpieces 20 engage the melted thermoplastic edge sealant in the fold 44.

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The sealing material forms a caterpillar bead,., Side parts 46 (PIg ^ 4 and 5) over the opposite one another]: Sides of the workpiece 20 protrude. . "■■ -".

The workpieces 20 guided past the edge sealing application device 32 then come under an application roller 48 which applies a strip 50 of liquid thermoplastic adhesive to the edge part of the workpieces 20. The strip 50 is applied to the edge part of the workpiece 20 adjacent to the sealed edge 28 in order to interact immediately with the sealing agent be applied on the opposite side of the workpiece 20 * a pressure roller 52 for pressing the _works: piece 20 to the application roller 48 is rotatably mounted on a Welle'54. The. Shaft 54 is carried by an arm 56 * A spring 58 is provided to load the pressure roller 52 so that it does-. Workpiece .20; presses against applicator roller 48. The applicator roller 48 is part of the melting and applicator device 12, which includes a block 60 and a heating element 62, which maintains the temperature of the block 60 at a level sufficient to melt the strand 10 / the thermoplastic adhesive . The strand 10 of the thermoplastic adhesive is pulled off a supply roller 64 by Yors'chubwheels 66 / and into an inlet opening; 68 of the melting and application device 12 was pushed. The ^ strand 10 enters a passage 70 in the

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Block 60 and is liquefied there. The melted adhesive is picked up by the surface of the applicator roll 48 and onto the surface of the workpiece. 20 applied in engagement with the parts 46 of the sealant. The molten thermoplastic adhesive softens the continuous body 54 of the sealant and, together with the sealant, hardens into a continuous body of resinous material that wraps around the. Edge 28 of the ¥ ferkstückes 20 extends. The edge 28 of the workpiece 20 protruding from under the application roller 48 and provided with the strip 50 and the softened sealing agent is in Pig. 5 shown .. The. The workpiece 20 with the adhesive strip 50 and the softened body 34 of the sealing agent is brought into a position lying over a mandrel 72 and placed around the mandrel 72 by means of shaped wings 74 which can be moved to and fro. The form wings 74 are carried by arms 76 and operated by means of a device (not shown) in such a way that the edge 28 of the workpiece 20 carrying the body 54 of the sealing agent is placed around the mandrel 72 before the part of the sand opposite it. Edge of the workpiece is bent around the mandrel 72, that a displacement of the -sealed. Edge 28 with respect to the edge portion of the opposite edge deö "workpiece 20 is prevented Fachäem the .Werkstück.'20 around the mandrel 72 has been ^{herumgel.egt;..} Is ,; so that the edge portions of the workpiece 20 overlap each other and the versiegelte- Edge,: 20 inside

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of the " cylindrical part 16 is located, a push rod 78 is moved into the position shown in FIG connecting adhesive bond comes about the finished cylindrical container body is then moved down from the mandrel 7.2 and the cycle is repeated "the container body is then provided with a metal bottom, filled with .Fruchtsaft. and: - closed ■ _ a lid '.'.

If the adhesive on the indicated by the arrow 51 Edge of the workpiece 20 is applied, it arrives in heat <transfer permitting intervention. with the body 54 of the sealant as the bumper 78 presses the overlapping edge portions of the workpiece 20 together to form the side seam. Thus, the body 34 of the sealing means and the strip 50 of the adhesive also form one in this case continuous body. thermoplastic material. "." - ..;

S OHUT ZAISPRiTCHB:

Claims (2)

Ή A ■ «10 - SPHUTZMSPRtTGHE; : -. . :. .;. : ' 1.. Cylindrical container body on a sheet material. with a fiber core and impermeable layers on the upper- ". -surfaces of the pas he st off core, whereby the edge parts of the -surface ---", material through: thermoplastic adhesive in the overlapping. State are attached to each other; characterized in that. . to prevent the. Liquids soaked the fiber core ^: (22): the sheet material (20) on the edge (28) inside the container body, the edge (28) with a continuous body (34) of thermoplastic., Resinous material (36) ^ ^ is covered, which extends τοη the edge part, one of the impermeable layers (24) around the edge (28) to an edge part of the other impermeable layer (24), 2. Cylindrical container body according to claim 1, characterized characterized in that the edge (28) of the sheet material (20) enclosing the continuous body (34) of the thermoplastic, resinous material (36) in attachment to the. the edge (28) overlapping edge part of the surface marberialS- (2-0). 3, - Cylindrical container body according to claim 1 or 2, characterized in that the -Randteile of the sheet material (20) holding in an overlapping state ,, thermoplastic.adhesive, (10) engages the continuous body (34) of the thermoplastic, resinous Material (36) extends and together-with this to form hardened by a continuous seal. For UIITBD SHOE MkGKIKEBJ CORPORATION: : 5.K.?; MCf = BIPl.-ING.H.SOHR - üiPt .-! i! S. S.STAESSR