DE2248966A1 - METHOD AND DEVICE FOR MANUFACTURING A STRAP ZONE, FREE OF CLOSING ELEMENTS, IN A CHAIN OF ZIPPERS - Google Patents

Description

Applicant ; CAEBIDE I ¹ OEM GEINDING, ING. . Brooklyn, New York 11204, USA, 1631 6Jrd Street

Method and device for producing a belt zone in a chain that is free of fastener elements of ice caps

The invention relates to a method and an apparatus for the production of a belt zone free of fastener elements in a chain from along its juxtaposed ones inner longitudinal edges of continuous spirals bearing ribbons existing ice seals, the spirals interlock and are attached to the straps in such a way that they are completely covered by the straps on one side are. .

In the mass production of ice locks, it is common to use a more or less long ice lock chain which consists of two bands which engage with one another along their inner longitudinal edges Carry standing closure elements, which recently preferably made of plastic thread spirals sewn onto the straps exist. To make individual ones from the long ice fastener chain that are suitable for sewing into items of clothing or the like To make ice seals of the desired length, a certain length of the interlocking Closure elements or plastic spirals

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cut away, i.e. a band zone free of fastener elements can be created, after which the zip fastener is attached of the free band zone is cut through in order to achieve a heat seal free of closure elements at its ends Length.

It is an object of the invention to provide a method and a device for the production of closure elements free To create ribbon zones in a chain of zippers, especially in a very long chain of zippers covered type, in which those made of continental plastic spiral existing closure elements are attached to the two straps of the chain in such a way that in the closed position the inner longitudinal edges of the straps butt against each other of the closure element.

More precisely, it is an object of the invention to provide a method for producing free band zones in zip fastener chains of the type mentioned to create, in which prior to severing the windings of the plastic threads Spirals the two zipper tapes are pulled apart in a precisely defined manner across the board in such a way that the blade-like Punches for cutting the spirals move past the inner edges of the pulled apart bands can, without damaging them, and when pulling apart the two straps, the closure elements engage with one another remain while the straps themselves are not damaged by the pulling apart.

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Another object of the invention "is to provide a method to create, by which the severed turns of the spirals from the ribbons to which they are sewn or woven are to be completely removed.

Another object of the invention is to provide an apparatus by means of which the methods can be carried out efficiently and which consists of relatively few and simple parts, so that they can be manufactured cheaply can be and has a long service life.

To solve some of the tasks set, this is Method according to the invention characterized in that

a) the tapes are clamped in the area of their outer longitudinal edges at a point selected for the free tape zone,

b) then, in order to pull apart the inner longitudinal edges of the bands in a precisely defined manner and thereby the interengaging fastener elements to expose the ligament zones between the clamped outer longitudinal edges and the interlocking locking elements pressed out of their position,

c) then the spirals between the expanded ones inner longitudinal edges of the bands on one of the desired length of the free band zone to be produced cut the corresponding route, and

d) Finally, the windings of the spirals that have been severed removed from the ligaments.

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Since the spirals are usually sewn or woven onto the zipper tapes, it is advantageous if the step of removing the severed turns of the spirals from the ligaments pulling out the severed ones Turns of the threads or stitches by means of which the spirals are sewn or woven onto the ribbons, includes.

Around the severed spirals completely out of the zipper straps To be able to remove, it is recommended as essential that each of the be severed Turns of the spirals is only severed on one side. This is preferably done by having the spirals on this side of the action of two transversely spaced apart cutting edges of a die and on the other Side of the action of one of the end faces of a punch are subjected to the distance between the two cutting edges the die, is movable; that the die and the punch are then moved relative to one another, so that the Punch moves between the cutting edges and then past them; and that when pulling out the severed Windings of the spirals from the threads or meshes cut the windings during the further downward movement of the Stamp beyond the cutting edges between the side surfaces of the stamp and the opposite one smaller distance than the cutting edges are clamped between having side surfaces of the die. The trapped Parts of the severed turns are thereby removed from the

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downward moving stamp taken and so complete pulled from the threads or stitches by means of which they were sewn or woven onto the zipper tapes.

The device for carrying out the method is characterized by a die with a support surface for the part of the zip fastener chain to be provided with a free band zone; one attached to the support surface Pressure pad unit which can be moved back and forth relative to the support surface, the die and the pressure pad unit with first cooperating devices, which the part of the straps of the zip fastener chain resting on the support surface pinch in the area of the outer longitudinal edges, and are equipped with second cooperating devices that Push a part of each band out of its supporting plane in order to keep the adjacent bands in a precisely defined way pull apart to expose the interlocking locking elements of the coils; and by one. Rubber stamp, which can be moved between the stretched inner longitudinal edges of the ligaments and for the purpose of severing the Spirals without severing the bands along a length corresponding to the desired length of the free band zone to be produced The stretch cooperates with the die.

The punch is also used during its further downward movement to pull out the severed turns of the Spirals from the threads or meshes, by means of which the spirals are sewn or woven onto the zipper tapes

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became.

The new features considered characteristic of the invention are detailed in the claims. The construction and operation of the device according to the invention, as well as its advantages and further features become clear, however, in the description of the figures that now follows exposed.

In the drawings, the two embodiments of the inventive Device show is or are:

lig. 1 is a partial front view of a device according to the invention Device in starting position;

fig. 2 is a view similar to FIG. 1, showing the device in a position in which the pressure pad unit has approached the die for the purpose of clamping the outer longitudinal edges of the two zipper tapes;
3 shows a view of the device similar to FIG. 2 in a position in which parts of the zipper tapes are pushed out of their plane for the purpose of pulling apart the inner longitudinal edges and exposing part of the spirals;

4 shows a vertical section through parts of the pressure pad unit, the die and the blade-like punch on an enlarged scale showing the relative positions this shows parts at the beginning of the severing of the spirals;

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Fig. 5 shows the Pig. 4- similar cut showing the punch after further downward movement shows in a position in which he shows the severed turns of the Spirals from the threads or meshes, by means of which the spirals on the zipper tapes are attached, begins to pull out;

Fig. 6 is another of Fig. 4- similar section showing the Shows stamp after further downward movement in a position in which the severed turns of the spirals sandwiched between the side surfaces of the punch and the side surfaces of the slot so that they are completely out of their way during the further downward movement of the punch Threads or stitches are drawn; 7 is a partial plan view of the die; Fig. 8 is a bottom view of the blade-like punch, and Fig. 9 is a partial front view of another embodiment the device.

Fig. 1 shows a device according to the invention for production a band zone free of fastener elements in a chain of zippers, which consists of two mirror-like blocks 1a_ and 1b having die 1 and one above the die arranged and relative to this back and forth movable pressure pad unit 2 consists. The two blocks la and Tb are interconnected in a manner described in more detail below. The pressure pad unit 2 is preferably made

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from a support part 3i, as can be seen from Fig. 1, from an upper block 6 and one of two mirror-like, mutually through a plurality of transverse Screws 8 connected and with their overhead surfaces on the bottom surface of the upper block 6 abutting parts 7a. and 7b_ existing lower block, the one with the upper Block 6 is connected in a known manner and therefore not explained in detail by means of screws or the like. The pressure cushion unit 2 also has two mirror images, with a plurality of preferably cylindrical rods 9 connected and guided by these rods relative to the support part 3 in the vertical direction The actual pressure pad composing halves 4a and 4b_ 1, only two of the ones provided for the purpose of screwing into corresponding ones in the pressure pad parts 4a_ and 4b Threaded holes at their lower ends with external threads provided rods 9 shows. The rods 9 lead with their upper sections in corresponding holes in the lower Blocks 7a. and 7b_ and are widened at their upper ends Heads 10 are provided, each of which is received by a bore 11 provided in the upper block of the support part 3. The holes 11 are blind holes that extend from the floor surface of the upper block 6 extend into this and in which compression springs 12 are housed, which are with their upper ends against the closed upper ends of the bores 11 and with their lower ends against the surfaces of the

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put on wider heads 10. Due to the biasing force of the compression springs 12, the pressure cushion parts' 4a and 4b are constant pushed away from the support part 3. As shown in FIG Device can be seen extends in the rest position the device a blade-like punch 5 with its lower Part to between the inner side surfaces 4a. ' and 4b_ 'the two pressure pad parts 4a. and 4b_ and will be there at his Vertical movement performed, while the upper part of the punch of corresponding, in the abutting side surfaces the lower block parts 7a. and 7]> provided grooves is added. The upper end face of the stamp 5 is here the lower surface of one of the recesses in the longitudinal direction of the block parts 7a. and 7b stored strip or Wedge 13 on. As a result, the stamp 5 is positively connected to the support part 3, while the pressure pad parts 4a_ and 4b_ relative to the punch 5 and the support part 3 in a vertical position Direction are movable.

The die 1 is od on the stationary part of a punching press vertical reciprocation of the pressure pad unit 2 and the punch 5 relative to the die with one in the drawings not shown ram of the punch press is connected.

Each of the blocks la and 1b_ is at its upper end with two longitudinally extending rib-like projections 14 and 15 with a sish in between them Form their longitudinal direction extending recess 16, the

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The bottom surface 16 'is a little higher than the bottom surface 17' of an outer cutout provided in each block next to the projection 14. The upper end surfaces 14 'and 15' of the projections lie in a common plane in both die blocks and together form a support surface for the two zipper tapes T ^ and Tp of a continuous zipper chain to be provided with a free band zone. The spirals C ^ which are sewn or woven into each of the zipper tapes near their inner longitudinal edges. and G _? are taken up by cutouts of the die blocks 1a_ and 1b lying between the projections 15. In the abutting inner side surfaces of the die blocks 1ta and 1b there are recesses which together form an axially extending slot 1Θ, the length of which corresponds essentially to the length of the free band zone to be generated and of two spaced apart from one another that exceeds the width of the punch 5 Side surfaces 18a ^ and 18b is limited. The upper ends of the side surfaces 18a and 18b run obliquely upwards and merge into cutting edges 19 which extend in the longitudinal direction through the die. The distance between the cutting edges 19 from one another is therefore greater than the distance between the side surfaces 18a ^ and 18b_ of the slot 18.

Each of the pressure pad parts 4a_ and 4b is with two extending in its longitudinal direction and each with the recess 16 and the one in each of the die blocks% and 1b provided outer cutout vertically aligned

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rib-like projections 20 and 21 formed. The width of each of the protrusions 20 is a thickness of the corresponding one Tear closure band twice passing dimension less than the width of the recess 16 assigned to it, whereas the inner ' Side surface 21 'of the projection 21 of each pressure pad part from the corresponding outer side surface 14a of the projection 14 to the side by an amount that is smaller than the thickness of the corresponding zipper tape. It should also be noted that the outer projections 21 extend further than the inner projections 20 downwards.

The operation of the device described above will now be described with reference to FIGS.

When, as shown in Fig. 1, the device is in the open rest position, the two zipper tapes T, -, and Tp on those of the aligned upper end surfaces 14 * and 15 'of the two on each die block provided projections 14 and 15 formed. Contact surface of the Die 1 placed. If now the pressure pad unit 2 is shown relative to the stationary die 1 downwards in FIG Position is moved, the outer projections 21 of the pressure pad parts 4_a and 4b_ capture the two zipper tapes in the Area of their outer longitudinal edges and place them with their outer (parts around the projections 14 of the two die blocks la and 1b_. Since, as mentioned, the inner side surface 21 'of the outer projections 21 of the two pressure pad parts 4a and 4b_ of

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the corresponding outer side surfaces 14a of the projections the die blocks la and 1b lies laterally by an amount that is smaller than the thickness of the zipper tapes, the outer parts of the zipper tapes between the inner side surfaces 21 'and the outer side surfaces 14a trapped. During the further downward movement of the pressure pad 4 slide, as shown in Fig. 3, the inner ones Projections 20 of the two pressure pad parts 4a and 4b into the in recesses 16 provided for die blocks 1a_ and 1b_ inside so that the part of each zipper tape that is between the outer pinched parts and the inner edges is pushed out of its position, i.e. out of its plane. This will create the inside edges of the zipper tapes pulled apart by a precisely determinable, dependent on the height of the projections 20 distance. By pulling apart The inner edges of the two zipper tapes are sewn onto the zipper tapes that were previously covered or woven spirals are now partially exposed without the interlocking coupling parts of the spirals thereby disengage. When the pressure pad parts 4a and 4b have reached the position according to FIG. 3, their downward movement is ended and it only moves the support part 3 further down, whereupon the punch 5 is now stationary Pressure pad parts 4a_ and 4b are approaching more and more between, on pulled apart inner edges of 4 hot-fastener bands moved through and finally the spirals C, -

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$ 224896

and Cp touched. In the position of the punch 5 shown in Fig. 4-, its preferably rounded lower edge 5 ^{1 has reached} the upper turn parts of the spirals C * and Cp, as shown in FIG To press cutting edges 19 of the two die blocks 1ji and 1b_. In the position shown in Fig. 4, the cutting of the spirals CL and Cp begins. As already mentioned, the distance between the two cutting edges 19 is greater than the distance between the side surfaces 18a and 18b of the slot 18, the distance between these two side surfaces being designed so that the punch 5 with. Game can penetrate into the slot 18 formed by these two side surfaces.

When the diameter of the for making the spirals used plastic threads d, the distance is yes between the opposite side surfaces 18a_ and 18b are preferably chosen so that when the punch 5 penetrates into the slot 18, the space between each side surface of the punch and the corresponding side surface 18a_ or 18b of the slot 18 preferably the plastic thread is smaller by about half the diameter d. In contrast, the distance b_ between the two cutting edges 19 greater than the distance a_ and corresponds preferably the thickness w of the punch 5 plus 2 x el.

The space between the side surfaces of the stamp and the cutting edges 19 on the one hand and between the side surfaces of the punch 5 and the slot 18 between them forming side surfaces 18jä and 18b on the other hand is chosen so

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that when in the position of the stamp 5 shown in FIG the rounded lower edge 5 'of the punch 5 the upper Turn parts of the spirals against the lower and this presses against the cutting edge 19, during the further downward movement of the punch 5, the lower turn parts of the spirals are severed by the cutting edges 19. During the further Downward movement of the punch 5 becomes the upper turn parts of the spirals, however, not cut through, but merely pressed down against the inclined side surfaces 19 *, because the space between each side surface of the punch 5 and the corresponding cutting edge 19 is approximately the diameter corresponds to the plastic threads. As well as the stamp 5 then how Fig. 5 shows the transition area between the slopes Side surfaces 19 'and the vertical side surfaces 18a_ and 18b. has happened, the plastic threads will be cut Windings G ^ 'and C2' between the side surfaces of the punch 5 and the side surfaces 18a_ and 18b_ pinched and during the further downward movement of the plunger 5, in order to finally, as FIG. 6 shows, to be drawn from the thread loops or stitches S.

The aforementioned relationship between the thickness of the Stamp, the diameter of the plastic threads, the distance between the cutting edges 19 and the slot 18 in äer Side surfaces 18a ′ and 18b forming the die 1 therefore ensure that during the downward movement of the punch into the slot 18 only severed the lower turn parts of the spirals and completely removed the severed plastic threads from the thread loop

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or stitches S, by means of which they are attached to the zipper tapes sewn or woven, so that no thread remnants get stuck on the zipper straps.

As already mentioned, the die 1 consists of two parts, which makes the sharpening of the cutting edges 19 and the grinding of the side surfaces 18a and 18h of the slot 18 much easier. As FIG. 7 shows, the two die blocks 1 a and 1 b are connected to one another by means of wedges 23 and 24. These wedges 23 and 24- extend transversely to the "slot 18" located in the center of the die and close it at its ends. Each of these wedges 23 and 24 is provided in its longitudinal center with a perpendicular slot 23 'or 24-'. The slots 23 'and 24' are aligned with the slot 18, but their width, e, is not as large as that of the slot 18 and essentially corresponds to the thickness w of the punch 5. As already mentioned above, extends over the largest Part of the length of the punch 5 has a rounded lower surface 5 ¹ · According to FIG. 8, the punch is equipped with two end parts 5 "and 5 '", which each run with little play in the slots 23' and 24 ' 5 "and 5"'are not rounded but flat, extend at right angles to the side surfaces of the punch 5 and cooperate with the ^{1 provided} in the wedges 23 and 24 slots 23' and 24 'so that the spiral ends at the ends the free band zone in the continuous zip fastener chain can be cut cleanly and precisely and not over the inner longitudinal edges

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of the hot-fastener tapes protrude.

FIG. 9 shows an embodiment that is modified compared to the device according to FIG. The die 1 'of the device according to FIG. 9 is very similar to the die 1 according to FIG. 1 and also consists of two blocks 1a / and 1b_'. The only difference between the blocks according to FIG. 9 and those according to FIG. 1 is that the projections 14 ″ are wider than the projections 14 in FIG. 1, extend to the outer side surfaces of the two blocks and merge into them The pressure pad 4 ¹ also consists of two parts, which are denoted by 4 and 4 d in FIG the upper ends of the slide rods 9 are connected is not shown in Fig. 9. The two pressure pad parts 4c and 4 <1 are formed with downwardly extending rib-like projections 20 which, in the manner described in connection with FIG cooperate with recesses 16 provided in the die blocks 1a / and 1t) ^1. Instead of the outer projections 21 on the pressure pad parts according to FIG. 1, however, auxiliary pressure pads 26 are provided in the embodiment according to FIG see, which are guided in cutouts 28 provided in the pressure pad parts 4c_ and 4d_. In the upper regions of the cutouts 28 helical compression springs 29 are provided, each of which is supported with its ends on one of the auxiliary pressure pads 26 and on the other hand on one of two plates 30, which by means of

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Screws or the like on the upper ends of the blocks 4c_ and 4d are screwed to the upper ends of the 'cutouts 28 to conclude. The helical compression springs 29 are preferably through with press fit in corresponding holes in the plates 30 seated pin 31 and through blind holes 32 in the upper Ends of the auxiliary pressure pads 26 centered. The cutouts 28 each consist of an upper, wider part and a lower, narrower part and thus form at the transition points between these two parts shoulders 28 '. Prevent laterally extending lugs 27 on the auxiliary pressure pad 26, that these move under the influence of the helical compression springs in a downward direction over those in Pig. 9 position shown move. Here, too, the stamp 5 is guided between the inner side surfaces of the pressure pad parts 4c and 4d_.

The mode of operation of the embodiment according to FIG. 9 is the following:

If the pressure pad 4 ¹ is in the connection with Pig. 1 is moved downwards, the bottom surfaces 26 'come. the auxiliary pressure pad 26 with the surfaces of the zipper tapes T ^ and Tp in the area of their lateral outer edges in contact and clamp them firmly against the surfaces 14 'of the gate projections 14 "of the two die blocks la ¹ and 1b ^1. Then the projections 20 of the pressure pad parts move 4j3 and 4d into the recesses 16 provided in the two die blocks 1a, ¹ and 1b ¹ , in order to push the zipper tapes out of their position between their inner and outer longitudinal edges and the inner edges in the same position

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Way as in Fig. 1 to pull apart. Then the slides Stamp 5 between the expanded inner edges of the Zipper straps through, cuts the spirals CL and Cp and pulls the separated part out of the thread loops or stitches by means of which they are sewn or woven onto the zipper tapes.

Although the embodiment according to FIG. 9 is a little is more complicated than that according to FIG. 1, it ensures a more precise pulling apart of the inner longitudinal edges of the zipper tapes than the device according to FIG. 1, "at <Jer it Under certain circumstances, it is possible that the zipper tapes are carried along a little by the side surfaces 21 'of the projections 2T will. The embodiment according to FIG. 9 also prevents damage to the zipper tapes, which occurs in the embodiment 1 can possibly result from the fact that the zipper tapes between the side surfaces 21 'of the projections 21 and the side surfaces 14a of the projections 14 somewhat be clamped firmly.

Each of the above-described elements can be used individually or two or more together Processes and devices are used for the production of free belt zones in zip fastener chains.

The present invention has been conceived as a method and apparatus for producing free belt zones in covered Zipper chains shown and described; however, it is not limited to those described and shown in the drawing Embodiments limited but extends

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to all within the concept of the invention conceivable embodiments.

Without further analysis, those skilled in the art can understand the essence of the present Invention from the above disclosure so clearly grasp that he immediately based on his specialist knowledge for may change other purposes without, however, features that from the point of view of the prior art the essence of the invention make up, to pass over, so that all these changes and modifications of the one in the following claims to the Expression coming inventive ideas are included.

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Claims (17)

Claims lJ method for producing a belt zone free of fastener elements in a chain of zippers consisting of belts carrying continuous spirals along their adjacent inner longitudinal edges, the spirals interlocking and being fastened to the belts in such a way that they are completely covered by the belts on one side, characterized in that a) the bands (T and T «) in the area of their outer ones Longitudinal edges pinched at a point selected for the free belt zone, b) then, in order to pull apart the inner longitudinal edges of the bands in a precisely defined manner and thereby exposing the interengaging fastener elements, the ligament zones between the clamped outer longitudinal edges and the interlocking locking elements pressed from a position, c) then the spirals between the expanded ones inner longitudinal edges of the bands on one of the desired length of the to be produced cut the corresponding distance in the free band zone, and 309832/0374 . 2248965 d) finally the severed turns of the spirals (C. and C ") _{are removed from the bands (T 1} and T"). 2. Verfaaren according to claim 1, characterized in that the spirals (C ₁ and C ₂ ) are sewn or woven onto the bands (T ₁ and T ₂ ) and the process step of removing the severed turns (C ₁ ^{1 and} C ₀ ¹ ) of the spirals from the ribbons includes pulling the severed turns out of the threads or bottles (S) by means of which the spirals are sewn or woven onto the ribbons. 3. Verfanren according to claims 2, characterized in that each of the turns of the spirals _{to be severed (C 1} and Cj) is severed only on one side. 4. The method according to claim 3, characterized in that for the purpose of separating the turns of the spirals on only one side, the spirals (C ₁ and C2) 'on this side of the effect of two transversely spaced cutting edges (19) of a die (1 ) and on the other side of the action of one of the end faces of a punch (5) are subjected, which can be moved with a distance between the two cutting edges of the die; that the die (1) and the punch (5) are then moved relative to one another, so that the punch sica between the cutting edges (19) and then past these, and 309832/0374 that at Heraas the severed "windings were drawn (C 'and C-,') of the spirals aas the threads or i-Iascuen (S) which are separated by windings during the further downward movement of the punch (5) over the üCiUieiuKdnten {19) and out between the side surfaces of the punch (5) and the opposite, a smaller distance than the cutting edges (19) between them on the side surfaces (18a, 18b) of the die (1) are glued. 5. A device for carrying out the Verfaiirens according to claims 1 * jis 4, characterized by a die (1) with a support surface (14 ', Ij ¹⁾ to the free zone with a band to be provided part of the zipper ..: · ilussKette; an outer support surface opposite attached uruckKisseneinhait (2), which can be moved back and forth relative to the support surface, wherein the die (1) and the pressure pad unit (2) with first cooperating devices that act on the support surface (14 ', 15'). pinch part of the straps (T, and T ^) of the zip fastener chain in the area of the outer longitudinal cinder, and second cooperating devices are equipped that push part of each _{strap (T 1} and T.) out of its support plane in order to wrap the adjacent bundles (T . and T ₂ ) to be drawn apart in a precisely coordinated manner and thus to expose the interlocking verse elements of the spirals (C. and C ^); and through a stamp (5) which passes between the extended longitudinal edges of the bands (T. and T ^,) 309832 / 037A _ 23 - is movable and for the purpose of cutting the spirals (C ₁ and C ") without burning through the tapes ( ¹ X ¹ , and T ^) along a route corresponding to the desired length of the free belt zone to be produced ■ works with the die (1) ζ us atoms. 6. Device according to. Claim 5, characterized in that the first cooperating devices consist on the one hand of two outer side surfaces (14a) of the mold (1) extending perpendicular to the support surface (14 ', 15') and on the other hand of two inner side surfaces (21 ^! ) Of the cushion unit ( 2) those which are each arranged essentially parallel to and at such a distance from the outer side surface (14a) of the die that is facing them that during the closing movement of the pressure pad unit (2) on the die (1) to the outer edges of the bands ( T. and T,) between aen outer side surfaces "(14a) of the die and the cooperating inner side surfaces (21 ^? ) Of the pressure pad unit. 7. Vorricatung according to claim 5, characterized in that the first cooperating devices on the one hand from the pressure pad unit (2) carried auxiliary pressure pad (26), the bottom surfaces (26 ') of the outer parts (14') of the support surface (14 ', 1S ¹ ) are essentially parallel to each other, and on the other hand, consist of pretensioning means (29) for resiliently pushing the auxiliary pressure pad (26) in the direction of the support surface (14 ', 15'), so that during the movement of the pressure pad unit (2) in the direction of the die (I ¹ ) between 309832 / 037A Bottom surfaces (26 ') of the auxiliary pressure pad (26) and the outer parts (14') of the support surface (14 ', 15') other longitudinally extending parts of the zipper tapes (T ₁ and T ₂ ) are clamped. 8. The device according to Ansprucu b, characterized in that the second cooperating means for pressing out a part of each Rexssverscnlussuandes (T. and T ₂ from its plane on the support surface (14 ', 15') on one side of two arranged at a distance from each other and in the longitudinal direction of the die (I ¹ ) running recesses (16) in the die (I ¹ ) and on the other side of corresponding, running in the longitudinal direction of the pressure pad and spaced from each other on the pressure pad unit (2), during the downward movement of the Pressure cushions in the direction of the die (1) consist of rib-like projections (20) which are inserted into the recesses (16) provided in the die, leaving spaces between them. 9. Vorricntung according to claim 5, characterized by means for removing the durcntrennen turns (C, ¹ and C ') of the spirals from the bands (T. and T ₂ ). 10. Vorricntung according to claim 5, characterized gekennzeicnnet that the spirals (C. and C ₂ ) on the zipper tapes (T, and T ₂ ) are sewn or woven and facilities are seen in front of the severed turns (C, 'and C ₂ ¹ ) pull the spirals out of the threads or stitches (S). 309832/0374 11. Vorricntung according to claim 10, characterized in that that the die (1) is provided in its center with a slot (18) extending in its longitudinal direction, its Length essentially the length of the free to be generated Belt zone and that of two essentially parallel and perpendicular to the support surface (14 ·, 15 ') and extending inner surfaces (18a, 18b) arranged at a distance from one another is formed, between which the punch (5) with play and that on both sides of the slot (18) and opposite the pressure pad unit (.2) two of each other in one greater distance than the inner surfaces (18a, 18b) of the slot (18) arranged cutting edges (19) are provided. 12. The device according to claim 11, characterized in that the punch (5) at least over the major part of its length with a rounded ünterflache (5 ¹ ) and two parallel with the slot (18) forming inner surfaces (18a, 18b) extending Side surfaces is provided, and that the gap between the side surfaces of the punch (5) and the cutting edges (19) of the die (1) is essentially twice the gap between the side surfaces of the punch (5) and the inner surfaces forming the slot (18) ( 18a, 18b) corresponds to the die (1). 13. The device according to claim 12, characterized in that the spirals (C, and C ^) from a certain diameter having plastic threads and which the slot (18) forming inner surfaces (18a, 18b) of the die in one of the 309832/0374 E.g. - Diameter of the plastic threads are arranged essentially the same distance from one another, so that when the punch (j) passes through the space between the cutting edges (19) of the die (1) the spirals (C and C ₂ ) are only located on the seneid edges (19) The touching turn is severed, during the further downward movement of the punch (5) through the cut (18) the severed turns (C. ¹ and C ₂ ¹ ) between the side surfaces of the punch (5) and the inner flanks (18a, 18u) of the Slit (Id) pinched, carried along by the punch (5) on its way through the slit (18) and thrown out of the stitches or threads (3) by means of which they are sewn or woven _{onto the ribbons (T 1} and T ₂₎ To be pulled out. 14. The device according to claim 13, characterized in that the rounded lower surface (ö ¹ ) of the punch (5) with two short, flat and substantially at right angles to the side surfaces of the punch (5) having lower surfaces (5 ", 5"') is provided; the slot (18) in the die (I ¹ ) has two corresponding end parts (23, 24) provided with side surfaces (23, 24) which are arranged at a distance from one another essentially corresponding to the thickness of the punch (5); the spaced apart cutting edges (19) of the die end shortly before the slot end parts (23, 24), and the die in the area of these slot end parts has outer surface parts which run ^{essentially parallel to the support surface (14 ', Ib 1) and which have a} 309832/0374 particularly acidic severing of the spiral ends at the Allow ends of the free sand zone to be produced so that no spiral ends protrude into the free sand zone. ' 15. Vorricntung according to claims 14, characterized in that aie die consists of two mirror-like blocks (la, Ib) which are connected by wedges (23,24) arranged through the ends of the slot (13), the slot end parts are _t ageordnet in the wedges (23,24). 16. The device according to claims 15, characterized in that ax pressure cushion unit (2) consists of a support part (3) which can be moved back and forth relative to the die, two mirror-image pressure cushion parts (4a, 4b) arranged next to one another and carried by the support part (3), one with the support part (3) and the pressure pad parts (4a, 4b) connected guide (9) for moving the pressure pad parts to and fro in the direction of the ilatrize relative to the support part (3), and from pretensioning means (12) cooperating with the pressure pad parts for continuous pretensioning of the Back cushion parts (4a, 4b) are bestent in the direction of the die, the part (5) being attached to the supporting part (3) ^{at its part opposite the lower edge (5 1) and being attached to it.} other parts between the pressure pads (4a, 4a). 309832/0374 ■ - 2 nights - 17. Device according to claims 16, aadurcn geKenn - zaionnec that aas iragteil (3) consists of a -ioaenflcicne upv / ironing upper iJIock (6), which is a multi-pawl from cer Bouanfla cue into its interior protruding xioiirunyen (11 ), and a lower block (7a, 7, j) connected to the upper block (6) ijestent, it has an upper surface abutting ijOjon uie iiodenflcicue of the upper block (6), v / o.jei lower ölocJc a multitude of ijonrungen fleeing with the corresponding uonrunyen (11) χλ \ upper block (6), the guide from a multitude of slidable in the lionrun-jen ia lower t-loc ^, with inran lower tuuea xait Uen ürucJikissenteile (4a, 4o) connected and equipped at the upper ends with widened heads (10) each in the bores (11) of the upper block (6), and uie pretensioning means in aan Boiirunyen (11 ) of the upper olocüs (6) arranged unu with uen widened heads (10) the rods (9) in üinjrifi; stenenden Druckfauern (12) jestenan. 309832/0374 Blank page