DE2737468A1 - PLASTIC INSERT FOR CAPS, SUCH AS CROWN CORKS AND THE METHOD AND TOOLS FOR THE MANUFACTURING OF THESE - Google Patents

Description

Bradfoss Anpartsselskab

Hammerholmen 9-13

2650 Hvidovre / Denmark 27 37 A 68

Plastic insert for closure caps, such as crown corks as well as the method and tool for making the same

It is known to provide sealing caps with plastic inserts, which form a liquid-tight seal when the cap is pressed against the rim of a container, and you has provided such inserts with a central projection which is directed towards the interior of the container.

When you remove the crown cap from the container and the insert from the metal cap removed, the insert can be used as a decorative button by pushing a thumbtack through the blouse fabric into a pin The recess in the end of the protrusion stands out.

It is now the aim of the present invention to provide a much larger one Provide choice in terms of the type of fastener.

According to the invention, the recess extends from the side of the projection so that a safety pin or other needle or nail is pierced through the protrusion and used as a fastener serves. For example, a pin can be used that is also attached to clothing. This is however not required when the button is attached in a buttonhole.

According to the invention, the recess makes the attachment of the Plastic insert as a decorative button on an item of clothing to facilitate a continuous hole through which a thread can be pulled or is feasible. You can also use a ring or a pin, for example a twig or a match, as a fastening means use. Such material will always be abundant at outdoor or indoor meetings, which is why it is particularly suitable as a participant badge, which may only be attached in the buttonhole.

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ORIGINAL INSPECTED

273746a

According to the invention, special shapes of the plastic insert the hole as tight as a needle. As a result, the insert or cap used as a decorative button is now held on the fabric, when a needle is passed through the hole instead of the cap hanging loosely. The hole can be poured, however is it is preferable to form it after casting, either before or after removal from the mold.

Regardless of whether the hole is pierced or drilled, it is according to the invention advantageous to attach the hole at a point of the projection where the side wall is flat, because you thereby a better surface for the tool to attack.

Furthermore, according to the invention, the hole in the projection is made there, where this is shaped like a sheet and has a thickness of the same order of magnitude as the other parts of the insert, so that the hole extends in the shortest possible way through the projection, i.e. through the narrowest part of the cross-section of the projection. By giving the protrusion this shape, you secure enough material at the transverse hole without having to through particularly has to drill heavy wall parts.

According to the invention, in that the hole extends obliquely through the projection, the decorative button with a It can be attached to a drawing pin, a nail, a pin or by sewing it on.

In this case it is advantageous according to the invention if the hole extends from an inclined side surface at the end of the projection extends, the surface being perpendicular to the axis of the hole.

By according to the invention a part of the inclined side surface of the projection is level, you get a good contact surface for a thumbtack or another nail.

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According to the invention, the hole is like a needle-fine depression shaped in the free end of the projection to cooperate with a drawing pin or a nail, so that the recess the Receives tip of the fastener and this leads into the massive parts of the projection.

To ensure the best possible pressure of the projection on the springs To reach the pin so that its insertion is facilitated, several radial slots extend from it according to the invention far end of the hole away.

The hole starting from the flat side surface on that of the side surface The closest end is funnel-shaped according to the invention. This shape of the hole makes it easier to catch the Tip of the fastener and insertion into the solid parts of the projection.

According to the invention, the outer part of the hole is conical and has, for example, a star-shaped cross section towards the free end of the projection. By making the hole like that Widened side surface at the free end of the projection is a easy catching of the drawing nail or the nail, provided that the decorative button is to be fastened with such, ensured.

This part is provided with a thick, solid part at the base of the protrusion, i.e. at its transition to the screen of the insert, from which the hole starts and is directed obliquely towards the free end of the projection or towards its opposite side.

In another embodiment of the hole, according to the invention, the hole is cut from a central longitudinal hole. With such a shaped hole in the lower, massive portion of the protrusion is at the end of longitudinal hole for cooperation with the fastening means - a rice nail or nail - used or the knob with needle and thread to a piece of fabric, for example a

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Garment, sewn on, or it becomes a nail or a pin guided through the longitudinal hole.

If furthermore is desired, for the manufacture of the protrusion To use as little material as possible, the cross section of the projection can decrease towards its free end.

According to the invention, there is a particularly advantageous type of material to save in giving the projection the shape of a truncated cone with an elliptical normal section. This enables only a particularly short hole needs to be drilled, as the hole can follow one short axis of the cross-sectional ellipse.

To protect against scratches from other caps to protect when there are a large number of caps with inserts in a common container in a sealing machine in the past, the inserts of the caps were provided with a sealing jacket which was cylindrical towards the inside of the bottle neck. According to the invention it is in such a use with a Sealing jacket is advantageous if the projection protrudes further than the sealing jacket, since the hole in the projection is thus arranged is that the sealing jacket when sewing the button to one piece Substance is not in the way.

According to the invention, it is advantageous that the projection both has a central recess in the free end face as well as a transverse hole. This enables, depending on your needs and choice of Fastening means to use the recess or the transverse hole.

According to the invention, the cross-section of the longitudinal hole is non-circular, for example oval, rectangular, rhombus or cloverleaf-like, and the transverse hole runs in or adjacent to the thinnest wall parts of the longitudinal hole. The non-round shape causes the wall of the longitudinal hole has different thicknesses, whereby the production of the transverse hole is made possible in the shortest possible time.

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A transverse hole in the projection can be made in the molding process, however, it is cheaper and easier to make the hole by cutting the material with a small punch or punch presses out of the projection.

The transverse hole is preferably in the projection of the plastic insert attached with the help of a cannula. This is so large remove just enough material to pass a sewing needle and thread through the hole. Furthermore is According to the invention, it is advantageous to use a cannula with a beveled end to produce the transverse hole, since the cutting edge the cannula not only presses against the material, but cuts through it. Such a cannula is useful does not come off as quickly as a cannula with a cutting edge in the normal cut.

According to the invention, the transverse hole is produced particularly quickly by that the hole is cut with a cannula moving in helical lines. This cuts the cutting edge of the Cannula through the material instead of forcing it through. The stopper that the cannula cuts from the material does not fall - as in the two previous cases - after drilling from the cannula, it still remains on a short ridge along the Outer edge of the hole, but is completely absorbed in the hollow space of the cannula, which prevents the The plug or part of it remains on the insert and later falls into the liquid or paste.

According to the invention, it is advantageous to have the transverse hole in the projection to cut or drill with the help of a cannula stored in one of the molded parts before the mold after the insert has been poured is opened. This means that a finished insert can be removed from the mold.

The same is achieved if, according to the invention, the transverse hole is cut or drilled in the projection with the aid of a cannula,

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ORIGINAL INSPECTED

after the mold has been opened so wide after casting that a Part of the protrusion is exposed without the protrusion itself removed from one of the moldings. It is thus made possible that the cannula into the gap between the molded parts for cutting the Hole is guided while the projection is still held in the mold. This procedure can remove chips from the drilling site removed.

It is most advantageous to make the transverse hole outside the mold, so that it is not needed during the manufacturing process. According to the invention the hole is drilled during the Insert is pressed onto a stand on a conveyor, the insert, for example, also with colored information or Decorative embossing is provided, and that the conveyor also carries a bearing for a cannula, the rotary movement of which is carried out by means of a Friction wheel mounted on the clamping head is transmitted, which moves against a friction running surface, and its axial movement is generated by a guide track pressing against the free end of the clamping head and against the action of a tension spring.

As mentioned above, it is advantageous to use the cannula during manufacture of the transverse hole within the mold, and according to the present invention, the mold has outside the projection of the insert has an opening corresponding to the cross section of the cannula to support the cannula when it is inserted and an opening opposite the first opening, the wall of which when it emerges the cannula serves as a support.

According to the invention, the insertion opening has a diameter which is approx. 0.04 mm wider than the outer diameter of the cannula, and the exit opening is somewhat larger, by 0.1 mm. Because of this mass, the openings in the mold provide good support for the cannula, and it is possible to use the same cannula to drill a particularly large number of holes before the cannula has to be resharpened. The drilling time amounts to only 1 sec.

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The invention is illustrated below with reference to the drawings Embodiments explained in more detail. It show im individual:

Fig. 1 is a section through one on the V / ul edge of a bottle attached crown cork with insert,

Fig. 2 is a section through an insert during use as Decorative button,

3 shows the same, seen obliquely from below, FIG. 4 shows a section through another insert, Figures 5 and 6 are sections through part of other inserts, Figure 7 is an end view of the same projection, 8 shows a section through the projection of a fourth insert, FIG. 9 shows a side view of the same projection, 10 and 11 sections through other inserts, FIGS. 12 and 13 parts of other inserts, seen obliquely from below, 14 shows a corresponding section through a further insert, FIGS. 15-19 cross sections through various inserts according to FIG Line 15-15 in Fig. 14,

FIG. 20 shows an axial section through another insert, FIG. 21 shows a section along the line 21-21 in FIG. 20, 22 is an end view of a conveyor with drilling tool on a smaller scale;

23 shows the same with several drilling tools, FIG. 24 shows a section through parts of a casting mold and 25 shows a corresponding section through parts of a different shape.

1-3 show a crown cap attached to a bottle neck 26. The crown cap consists of an outer metal part 27 and an inner insert 28 made of plastic. The use has a top plate or screen 29 on and an inwardly directed middle sealing maritel 30 and one also inwardly directed central projection 31.

This protrudes a little further than the sealing jacket 30, and outside the mantle edge, the projection has a transverse

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ORIGINAL «45FECTED

2737A68

de recess 25 (Fig. 1) or a transverse hole 51 or 33 (Fig. 2 and 3) on.

The insert 28 removed from the metal part 27 after the crown cap has been used is as shown in FIG. 2 attached to a piece of fabric 39, for example a blouse or shirt, so that the insert serves as a decorative button or badge.

The hole 33 (Fig. 5) starts from the flat part of the projection 31 and is directed obliquely towards the opposite side. This enables a drawing pin 35 to be fastened in the hole 33

The same applies to the embodiment shown in Fig. 4, where the Hole 33 opens onto an inclined end face 34. The one shown in FIGS. 6 and 7 geogenebo insert further comprises a plurality of radial slots 40 for Recording of a drawing pin 35, the tip 36 of which is a little larger than the actual hole 33. The slots 40 are inclined and therefore lead the tip 36 into the actual part of the hole 33.

8 and 9 show an insert with a projection 31, the Transverse hole 33 has a conical expansion 52 with a star-shaped cross section for receiving the drawing pin 35.

The insert shown in Fig. 10 has a transverse hole 41, which is both well used for fixing the projection with a rice nail or other nail as with a thread 42, the thread being passed through the hole and on a piece of cloth 39 is sewn as shown in Fig. 14.

In the case of the insert according to FIG. 11, the hole is divided into a central part 44 and an inclined part 45 for cooperation with a drawing nail or a sewing needle. From the part 46 it is possible for the pin to penetrate into a solid part 37 of the projection.

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ORIGINAL INSPECTED

The protrusion 31, as shown in Fig. 12, has a cube shape, and that The transverse hole 47 is square and has a corresponding shape Punching or punching tool or a pin.

Fig. 13 shows the projection 31 like a sheet, and the transverse hole 48 can be poured.

The insert shown in Fig.14 and 15 has a projection 49 with conical, oval cross-section towards the free end. In addition to the central hole 50, the projection has the transverse hole 51 through which the thread 47 is guided. If desired, the transverse hole 51 can be used for fastening of the insert can be used on the fabric 39, as illustrated in FIG. 14, or the elongated hole 50 by insert a drawing pin 35 (Fig. 4) or a nail until the tip 36 of the drawing pin is in the solid part 37 of the projection has established.

16 shows a cross section through a projection 49, the longitudinal hole 50 of which has an oval cross section, and a transverse hole 51, which extends through the thinnest wall parts of the longitudinal hole.

The same also applies to the embodiment shown in FIG. 17, where the cross section of the longitudinal hole 50 is rectangular.

The transverse hole also runs in the longitudinal hole 50 illustrated in FIGS. 18 and 19 with a rhombic or clover-leaf cross-section 51 through the thinnest wall parts of the projection 31

In Figs. 20 and 21, an insert with a longitudinal hole 50, 52 is shown, which widens towards the end of the projection to accommodate a drawing pin. The expansion has a star-shaped cross-section, and the transverse hole 51 extends through the opposite tips of the star where the walls in the corresponding one Cross-section are thinnest.

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In Figs. 22 and 23 it is illustrated how a transverse hole in cap inserts 28 is drilled while these are on the way from the molding machine to the point where they are with the not shown Metal part of the crown cap can be put together and possibly placed on the bottles at the same time.

The inserts can be embossed on the top during transport.

The conveyor consists of several blocks 53 that go through with each other Chain links 54 are connected and on several L-shaped rails 55 be pulled forward.

Each block 53 carries a stand 56, that of not shown An insert 28 is fed to hanging rails, whereupon the insert is pressed firmly onto the stand 56 as it moves. The stand has an opening 57 into which a moving cannula 58 is inserted which extends through the projection 31 of the insert bores.

The cannula receives its rotary movement from a rotating clamping head 59, in which it is fastened, the clamping head moving in a bearing 60 in a bearing block 61 on the block 53.

The clamping head 59 carries a friction wheel 62, which during transport runs on a friction track 63, whereby the cannula 58 is rotated.

The cannula is advanced against the free one End of the clamping head 59 pressing guide rail 64, which is shaped so that the cannula with a suitable rotation movement Axial velocity is introduced into the opening 57. To At the end of the drilling process, the cannula 58 is returned to its starting position using a compression spring 65, which surrounds the clamping head 59.

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24 shows a vertical section through parts 66, 67 of a casting mold for producing an insert. Once the core 68 is removed of the mold from the molded body, a cannula is inserted 69 in the mold parts 67 for penetration of the projection 31 of the body, the cannula pn openings 70 is held and 71st

Furthermore, FIG. 25 illustrates a corresponding vertical section by a mold, the parts 72 and 73 of which are slightly opened without the body falling out, and at the same time the Core 68 released from use.

In this position, a cannula 74 is guided between the molded parts to penetrate the projection 31 of the insert.

With regard to the openings 57, 70 and 71 it is noted that these serve to control the cannula while the projection is being drilled, why the cannula needs running movements in these openings, why the diameter of the inlet opening is 0.04 mm larger and the diameter of the outlet opening is 0.1 mm larger than that Outside diameter of the cannula.

As already mentioned, the insert can be embossed on its upper side, i.e. the one against the metal part of the crown cap facing side, so that this impression gives the insert a characteristic appearance compared to others Cap inserts, and which can also contain information.

Instead of the embossing, the screen 1 of the cap can have an external imprint of information or decoration, preferably in multiple colors, wear.

Furthermore, as already mentioned, the insert can also be used as a decorative button without removing it from the metal part 27 (FIG. 1) will. The information only needs to be attached to the outside of the metal part.

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ORiGlNA ?. ! MoFECTED

Claims (27)

ipl.-Ing. Hoti £ Meissner Dipl .-! No. Frich Delle 1 β AUG. J977 *: ~ * f. R a r η a π Sievosjhirüße 21. ΓβΙβίοι. 34 20 Ιό? 7 ^ 7 / ß Q claims: 1. Plastic insert for sealing caps, which when pressed through "the closure cap against the beaded edge of a container opening creates a liquid-tight seal and has a central projection directed towards the interior of the container, characterized in that that the recess (25) extends from the side of the projection (31), and that a safety pin or other needle is pierced across the projection and used as a fastening means (Fig. 1). 2. Use according to claim 1, characterized in that the recess make a through hole (33, 41, 47, 48 or 51) through which a thread can be pulled or passed (Fig. 2--21). 3 · Insert according to claim 2, characterized in that the Hole is tight like a needle. 4. Use according to claim 2 or 3, characterized in that the hole (33, 47 or 48) starts from a point of the projection (31), where its side wall is flat (Fig. 8, 12 or 13) 5. Use according to claim 2, 3 or 4, characterized in that the hole (48) in the projection (31) is made where it is shaped like a sheet and has a thickness of the same order of magnitude like the other parts (29) of the insert, and that the hole extends by the shortest path through the projection (Fig. 13) 6. Use according to claim 2, 3, 4 or 5, characterized in that the hole (33 or 41) extends obliquely through the projection (Figures 4-11). 7. Use according to claim 2, 3 or 6, characterized in that that the hole extends from an inclined side surface at the end of the projection, the surface perpendicular to the axis of the Hole (Fig. 5-9). 809809/0815 ORIGINAL INSPECTED 8. Use according to claim 7, characterized in that the inclined surface is flat (Fig ^ 5). 9. Use according to claim / 1, 3, 7 or 8, characterized in that that the hole is like a needle-fine depression in the free end of the projection for working with a thumbtack or a Nail (Figs. 4 and 10) is shaped. 10. Use according to claims 2, 3, 4, 5, 6, 7, 8, 9, characterized in that that several radial slots (40) extend away from the extreme end of the hole (33) (FIGS. 6 and 7). 11. Use according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, characterized characterized in that the hole proceeding from the flat side surface is funnel-shaped at the end closest to the side surface is (Fig. 8). 12. Use according to claim 2, 3, 4, 5, 6, 7, 8 or 9, characterized in that that the outer part of the hole (33) is conical and, for example, has a star-shaped cross section (Figures 8 and 9). 13 · Insert according to claim 2, 3, 6, 7, 8 or 9, characterized in that that the projection (31) is provided with a thick, solid part (37) on the base from which the hole (33) extends and is directed obliquely towards the free end of the projection or towards its opposite side (Fig. 5) 14. Use according to claim 2, 3, 6, 7, 8, 9, 11 or 12, characterized in that the hole (41 or 51) from a middle Longitudinal hole (44 or 50) is cut (Fig. 11 and 14-21). 15. Use according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 or 14, characterized in that the cross section of the projection (31 or 49) decreases towards its free end (Fig. 5 and 14). 809809/0815 16. Use according to claim 15, characterized in that the projection (31) is in the form of a truncated cone with an elliptical normal section has (Fig. 5). 17. Use according to claims 1, 2, 3 with one against the interior of the Bottle neck cylindrical sealing jacket, characterized in that the sealing jacket (30) protrudes less than the projection (Fig. 1-3). 18. Use according to claim 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16 or 17, characterized in that the projection (31) both a central recess (32) in the free end surface as well as a transverse recess or a transverse hole (25, 51 or 33) (Fig. 1, 2 or 3). 19. Use according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 »14, 15, 16, 17 or 18, characterized in that the cross section of the longitudinal hole (50) non-circular, for example oval (FIG. 16), rectangular (FIG. 17), diamond-like (FIG. 18) or clover-like (Fig. 19), and that the transverse hole (51) runs in or adjacent to the thinnest wall parts of the longitudinal hole. 20. A method for producing a plastic insert in one or more of the preceding claims described type, characterized in that the transverse hole in the projection with the help a cannula is attached. 21. The method according to claim 20, characterized in that the transverse hole is cut with a cannula which is beveled at its end will. 22. The method according to claim 20 or 21, characterized in that the transverse hole is cut with a cannula moved in helical lines will. 809809/0815 -A- 23 · The method according to claim 20, 21 or 22, characterized in that that the transverse hole in the projection is cut or drilled with the aid of a cannula mounted in the one molded part before the mold is opened after the insert has been poured. 24. The method according to claim 20, 21, 22 or 23, characterized in that that the transverse hole in the projection is cut or drilled with the aid of a cannula after the mold has been poured has been opened so far that part of the projection is exposed without the projection itself being removed from any of the molded parts became. 25 · The method according to claim 20, 21, 22 or 23, characterized in that that the transverse hole is drilled while the insert is pressed onto a stand on a conveyor, the insert for example also with colored information or decoration embossing is provided, and that the conveyor also carries a bearing for a cannula, the rotational movement of which by means of a on the Friction wheel attached to the clamping head is transmitted, which moves against a friction running surface, and its axial movement of one against the free end of the clamping head and. against the we Rung of a tension spring pressing guideway is generated. 26. Mold or mold for performing the method according to claim 20, 21, 22, 23, 24 or 25, characterized in that outside the projection of the insert there is an opening (70) corresponding to the cross section of the cannula (69) for support of the cannula when it is inserted and an opening (7t) opposite the first opening, the wall of which as Support is used (Fig. 24). 809809/0815 27. Mold or molding tool ^ iach claim 26, characterized in that that the inlet opening is about 0.04 mm wider than the outer diameter of the cannula / e, and that the outlet opening is still is slightly larger, around 0.1 mm. 809809/081 5 ORIGINAL INSPECTED