DE10206058C1 - Piping bag, for paste foodstuffs, has a truncated cone section and a jet reinforcement of a plastics-coated textile fabric, bonded together by welding over their whole surfaces - Google Patents

Abstract

The piping bag has a truncated cone section (12) of a textile fabric with a plastics coating, and a piping jet reinforcement (14) also of a plastics-coated textile fabric. The coated fabrics are welded together over their whole surfaces, at the overlap of the jet reinforcement over the conical section of the bag. The material layers are bonded (20) together by ultrasonic or thermal welding.

Description

The invention relates to a piping bag for pasty foods with egg a substantially frustoconical bag section of art fabric coated fabric and one with a tapered end the bag portion connected, essentially frustoconical The top reinforcement made of plastic-coated textile fabric, the the annular end of the bag portion surrounds the tapered end. The inventor The invention also relates to a method for producing a piping bag for pasty foods and a device for carrying out the Method for producing a piping bag.

Kneading bags are known for pasty foods in which a mate rialzuschnitt of a plastic-coated fabric on seitli coated edges with adhesive and a truncated cone  glued together bag section. At the tapered end of the Bag section becomes one, also from a material blank plastic-coated textile fabric existing, peak reinforcement glued in the glued state, the tapered end of Beu annular section surrounds and also frusto-conical out is forming. The glued-on lace reinforcement prevents fraying the bag end with prolonged use and ensures a safe Stop of spray nozzles inserted in the end. Piping bags are with pasty food, such as cream, filled and hand-fed squeezed together to make the pasty food from the nozzle press and decorate a cake, for example. After Use the piping bags are rinsed, for example, in a rinse machine. To a full-scale hold the top reinforcement on the To ensure tapered bag end is generally a small Fügig larger area than the actual overlap area of the Spit zenverstärkung and the bag end coated with adhesive. About that In addition, when pressing the tip reinforcement on the bag end Adhesive between the pressed-on material layers ago expressed. As a result, adhesive overhangs on the finished spray not to avoid bag. These adhesive protrusions discolour by sunlight or by the action of temperature in one Dishwasher, so that after repeated use of the optics Impact bag is impaired. In addition, the leaked Adhesive residues potential contaminants for food remains.

From the German utility model DE 16 54 205 U is a Spritzbeu tel known for pasty food, which is a frustoconical Bag portion having, for example, plastic coated silk fabric can exist. The piping bag is with a spit zenverstärkung realized in the form of a textile tape. Overlapping Ab sections of the bag section are sewn together and also the The tape used as a peak reinforcement is with the tapered end of the  Sewn bag section. Alternatively, the bag portion and the Bonded tape. From the utility model is also be known to be made of plastic-made temperament bag welded can.

From the German patent publication DE 696 05 726 T2 is an off Plastic film material existing piping bag known by means of a Seal or adhesive bond is closed. In the rejuvenated En de of the piping bag is an insert used.

With the invention, an easy-to-clean piping bag for pasty Food can be specified, as well as a method of preparation such a bag and a device for carrying the this procedure.

The problem underlying the invention is achieved by a spray bag for pasty food with a substantially truncated cone shaped bag section made of plastic-coated textile fabric and one connected to a tapered end of the bag section, in the substantial frustoconical plastic peak reinforcement coated textile fabric that loosens the tapered end of the Beu annular section surrounds, in which the overlapping sections the tapered end of the bag section and the tip reinforcement are welded together over the entire surface.

By welding the tip reinforcement to the tapered end of the bag portion may indicate an adhesive connection in this Be richly be dispensed with. As a result, none between the Ma terialschichten exiting adhesive residues may be present, the poten form critical pollution spots. The piping bag according to the invention can therefore be easily cleaned.  

Due to the full-surface welding is on the one hand a secure hold the Peak reinforcement on the bag section and on the other hand ensured that between bag section and peak reinforcement no hind where food remains are sam could be. Through full-surface welding are also turned closed air bubbles between peak reinforcement and bag section prevents the secure hold of the top reinforcement as well as the Le could affect the service life of the piping bag.

In a further development of the invention, the bag portion of a first Material cutting with overlapping and welded side edges educated. Advantageously, the peak gain is one of two material cut with overlapping and welded side channel formed.

These measures can be a fully welded piping bag be prepared in which to dispense with adhesive bonds can. Such a piping bag is on the one hand easy to clean, hygienic and also inexpensive to produce from textile material.

The problem underlying the invention is also by a Ver drive for producing a piping bag according to the invention for pastö se food, in which the following steps are provided: Hef a second material blank made of plastic-coated textile fabric into a substantially conical or frustoconical spit zenverstärkung by means of a welding process and welding the Tip reinforcement with a tapered end of a substantially cone or truncated cone-shaped bag section, wherein each other ü Overlapping portions of the top reinforcement and the bag off be welded over the entire surface.  

By the second material blank first in the cone-like shape ei If a peak gain is pinned, the peak gain can be fixed and the bag portion aligned with each other prior to welding be, for example, by the peak gain in the manner of a Ring is placed on the tapered end of the bag section. The already stapled top reinforcement then remains in its pre see end position, so that the intended welding area too is accessible and not in part by holding devices or the hand covered by an operator. As a result, stitching allows the Peak reinforcement, before welding the peak reinforcement done with the end of the bag section, a reliable, durable Weldable joint that can be realized.

Through full-surface welding undercuts between Bag section and lace reinforcement avoided, making an easy to be cleaned, hygie  niche piping bag is created in which the peak reinforcement is reliably attached to the bag section.

In a further development of the invention, the stapling of the second material takes place Cut to the peak gain by means of ultrasonic welding.

For stapling the second material blank to the peak reinforcement For example, a single spot weld, which by means of Ultra sound welding can be applied quickly. By the local be limited effect of ultrasonic welding is not a subsequent Ab Cooling phase required, which could delay the manufacturing process.

In a further development of the invention is after the welding of the tips reinforcement with the tapered end of the bag section one step the cooling of a holding device provided.

By these measures are constant temperature conditions in created the holding device, the prerequisite for high clock and consistent quality of welded joints by a gradual heating of the holding device by successive ing welding operations is avoided. In addition, it can be the same the piping bag in the welding area are cooled down early, so that remove it immediately from the welding device and continue to process it beitbar is.

In a further development of the invention, the stapling of the second material takes place cut to the peak reinforcement in abutment with the tapered end of the bag section.

As a result, the second material blank is already substantially in its final position at the tapered end of the bag section stapled to the peak gain. This allows tolerances of the mate  rialzuschnitts and the tapered end of the bag section on a fold way, and extremely dimensionally shaped piping bag can be made. Stapling the second material blank to the peak gain as well as attaching the peak gain at the tapered end of the bag section can simultaneously, through Applying a single spot weld done.

In a further development of the invention, the welding of the tips takes place reinforcement with the tapered end of the bag section by ther mixed welding.

By thermal welding, a large amount of heat can be relied on be introduced sig, whereby large-area welding made possible light is. For example, thermal energy can be easily regulated by means of Electric heat generated.

The problem underlying the invention is also by a Vor direction for carrying out the production process according to the invention solved, in which at least one cone or frustoconical Aufla ger for receiving a tapered end of a cone or cone truncated bag portion and / or a peak reinforcement so as at least one welding stamp are provided for stapling the peak reinforcement and / or welding of the tapered En of the bag portion with the tip reinforcement in abutment with the Auflager or be brought in the immediate vicinity of the support can.

Such a device allows a tailor-made arrangement of Beu section and the peak reinforcement for the weld or handle process. By a conical or frustoconical support is a Overlap area between peak reinforcement and bag section completely accessible and the production of a circulating sweat  Connection between lace reinforcement and bag section can be in take one step.

In a further development of the invention, the at least one welding punch electrically heated.

Electrically heatable welding punches are large for the introduction Amounts of heat suitable and beyond regarding the foresee NEN welding temperature to regulate well.

In a further development of the invention, the welding punch has a heated bare inner surface on the shape of a lateral surface of a cone or having a truncated cone.

By means of such a welding punch, a uniform, vollflä chiger contact with the tip reinforcement or the tapered end of the bag section can be achieved. This can be a circumferential Weld between peak reinforcement and bag section in one Operation done. Due to the conical inner surface, which on the also cone-like support is put on, are Spitzenverstär kung and bag section beyond full area against each ge presses, so that air bubbles in the welding area can be prevented NEN.

In a further development of the invention, the at least one welding punch designed as ultrasonic welding stamp.

An ultrasonic welding stamp is in a special way to stapling the Peak gain suitable.

In a further development of the invention, at least one cooling stamp is vorgese which is in contact with a support or in the immediate vicinity of the  Auflagers can be brought. The cooling stamp has more advantageous has a coolable inner surface, which has the shape of a lateral surface a cone or truncated cone has.

By means of a cooling stamp, the support can be comparatively low cooled according to design effort after each welding who so that constant temperature conditions are ensured can. By means of a Kühlstempels with a conical inner surface is a uniform, full-surface contact with the cone-like support or the welding area between the peak reinforcement and the bag section achieved, so that a rapid cooling is guaranteed.

In development of the invention, the support is at least one, provided on its lateral surface opening passage, with Compressed air can be acted upon.

Such a passage allows a quick and gentle Lifting the finished spray bag from the support. For example, can the support of superimposed truncated cone sections be built, which release between them through channels.

In a further development of the invention, the at least one conical or ke truncated supports arranged on a turntable, wherein the Support through the turntable to a position below a sweat station with the welding punch, a position below a Kühlsta tion with a cooling stamp and / or in a position below a Stapling station with a staple stamp movable.

By these measures, a device for the industrial Her created position of the piping bag according to the invention, wherein at For example, three supports are provided and after a complete  Rotation of the turntable has undergone a support all stations and thus a piping bag is completed.

Further features and advantages of the invention will become apparent from the on and the following description of preferred embodiment Forms of the invention in conjunction with the drawings. In the Drawings show:

Fig. 1 is a sectional view of a piping bag according to the invention,

Fig. 2 is a schematic representation of a Prior direction according to the invention for manufacturing the piping bag in Fig. 1,

Fig. 3 is a partially sectioned front view of a erfindungsge MAESSEN device for stapling a lace reinforcement and

Fig. 4 is a partially sectioned side view of the device of FIG. 3.

The sectional view of Fig. 1 shows a Spritzbeu tel 10 according to the invention, which is intended for pasty food, such as dough or cream. The piping bag 10 is formed frusto-conical and in its tapered end, a tip or nozzle can be used who the, having a nozzle opening with a desired cross-sectional shape, for example, star-shaped. The contained in the piping bag 10 tene pasty food is then expressed through the nozzle in that the piping bag 10 is held by hand at its end with a larger opening and compressed.

The piping bag 10 comprises a bag portion 12 and a peak gain 14, wherein both the bag portion 12 are frusto-conical as well as the peak gain fourteenth The Spit zenverstärkung 14 is provided to prevent fraying of the tapered end of the Beutelab section 12 with prolonged use of the piping bag 10 and to reinforce the tapered end, so that a nozzle is reliably held in the tapered end.

The bag portion 12 and the peak reinforcement 14 consist of egg nem first or second material blank of plastic-coated textile fabric. For example, polyurethane-coated cotton warp or coated plastic fiber fabric can be used. The first material blank in the form of a circular ring sector is folded at its straight side edges so that they overlap ü. This overlapping region of the side edges can be seen in FIG. 1 in the upper area. The two overlapping Seitenkan th are welded together, so that in the overlapping area a flat welded joint 16 is formed.

At the, the tapered end of the bag portion 12 gegenüberlie ing end, the lower edge of the bag portion 12 is folded and sewn into a circumferential seam 18 .

In a similar manner as in the preparation of the bag portion 12 , a second material blank, which has substantially the shape of a circular ring sector, is stacked at its ge side edges so that they overlap to produce the peak reinforcement 14 . This overlap region is provided in the illustration of FIG. 1 below. The overlapping side edges are stapled, for example, by means of a single welding point, so that the frustum-shaped peak reinforcement 14 is formed from the second material strip. The stitching of the second material blank to the Spitzenverstär effect 14 can be done in a separate device or already in a position on the tapered end of the bag section 12 . After stitching the lace reinforcement 14 this is due to their shape already safe on the tapered end of the bag portion 12 , and expediently and as explained in connection with FIG. 2, a conical bearing is introduced into the bag section 12 .

The stitched lace reinforcement 14 is now fully welded to the ver most recently end of the bag portion 12 . As a result, formed between the overlapping side edges of the stapled tip reinforcement 14 a full-surface weld joint 20 and between the tip reinforcement 14 and the tapered end of the Beu telabschnitts 12 a full-surface weld 22 from. As can be seen in Fig. 1, the piping bag 10 in the front, tapered area by the full-surface welds 20 and 22 no lei undercut, so th between the individual Schich no food particles can collect. The piping bag 10 is thus easy to clean and hygienic.

The illustration of FIG. 2 schematically shows an inventive device for carrying out a Herstellverfah invention proceedings for the piping bag of FIG. 1. The apparatus 24 comprises a turntable 26 which can be rotated by a drive 28 in the sample with an arrow direction shown , The turntable 26 is provided with three conical supports 30 , 32 and 34 , which are each arranged by egg nes rod-shaped support on the turntable 26 . The tapered supports 30 , 32, and 34 are intended to receive a tapered end of a bag portion and a tip reinforcement, respectively.

To prepare a piping bag, a prepared, ke gelstumpfförmiger bag portion is first placed on the first support 30 . Thereafter, the second material blank is placed around the tapered end of the bag section. The second material blank thereby receives ei ne the first bearing 30 substantially corresponding conical shape and is then stapled by means of an ultrasonic welding head 36 to the peak reinforcement. For this purpose, the ultrasonic welding head 36 in the direction indicated by a double arrow directions in Anla ge to the first support 30 or be moved in the immediate vicinity. After tacking the peak gain of the ultrasonic welding head 36 is moved away again, and the first support 30 in the Po tion process in which in the illustration of FIG. 2, the second bearing 32 is located. It should be noted that after stapling the peak reinforcement this rests securely on the first support 30 .

A resting on the tapered end of the bag portion and the second support 32 peak reinforcement is thereby welded telabschnitt telabschnitt by Beu on the second support 32, a welding punch 38 is placed. The welding punch 38 has an inner surface which has the shape of the lateral surface of a cone and as a result presses the tip reinforcement and the tapered end of the bag portion against each other and to the second support 32 at. The welding punch 38 is electrically heated and causes currency rend he rests on the tip reinforcement and the tapered end of the Beu telabschnitts, for a full-surface welding of overlapping penden sections. The welding punch 38 can be moved vertically in the directions indicated by a double arrow.

After welding the tip reinforcement with the Beutelab section, the second support 32 is moved by rotation of the turntable 26 in a position in which in the illustration of FIG. 2, the third support 34 is shown. In the position of the third support 34 , a cooling punch 40 is lowered onto the third support 34 . Characterized both the welded joints between the Spitzenverstär effect and the bag portion and the third support 34 are cooled. This ensures that the supports 30 , 32 , 34 do not gradually heat up during a continuous production of piping bags and change the boundary conditions for stitching or welding the tip reinforcement and the bag section. The cooling punch 40 can be moved vertically in the directions indicated by a double arrow directions.

After lifting the cooling ram 40 of the third support 34 , this is moved by rotation of the turntable 26 in the position in which in the illustration of FIG. 2, the first support 30 is shown. Coming from the cooling station with the cooling punch 40 Spritzbeu tel is now completely finished and can be lifted from the corresponding support. For this purpose, each support 30 , 32 , 34 provided with egg NEM passage, which can be acted upon by means of a compressed air source 42 and a compressed air line 44 with compressed air. A mouth of the passageway in the supports 30 , 32 and 34 is indicated by an annular opening on each of the supports 30 , 32 and 34 . The pressurization of the through-channel with compressed air facilitates the lifting of a finished spray bag from the support 30th After taking off the finished spray bag from the stock 30 takes place, as already described, again stapling a two-th material strip to the peak gain in this position.

A control of the rotational movement of the turntable 26 , the movements of the ultrasonic welding head 36 , the welding punch 38 and the cooling punch 40 and the compressed air loading of the supports 30 , 32 and 34 is effected by a central control unit 46 , which in turn the ultrasonic welding head 36 , the welding punch 38 and the control unit or control units 48 , 50 and 52 assigned to the cooling punch 40 actuates.

The illustration of Fig. 3 shows a partially sectioned front view of a device according to the invention for stitching a second material blank to a peak reinforcement. The illustrated Vorrich device has a frusto-conical support 60 around which the second strip of material can be placed. After placing the second strip of material, an ultrasonic welding punch 62 can be acted upon with ultrasound energy and cause stapling of the second Materialstrei fens to the peak gain. To protect the ultrasonic sound welding stamp 62 , a guard 64 is provided. After stitching the peak reinforcement, it can be removed from the support 60 and processed further. The conical bearing 60 , which is provided at its thicker end with an annular stop 66 for the second material strip, thereby allowing a passge naue production of the peak gain with low tolerances.

Further details of the device of FIG. 3 can be seen in the side view of FIG. 4.

Claims (18)

1. piping bag for pasty food with a substantially frustoconical bag portion ( 12 ) made of plastic-coated textile fabric and one with a tapered end of the bag portion ( 12 ) connected substantially frustoconical Spitzenver reinforcement ( 14 ) made of plastic-coated fabric, the ver the young end of the bag section ( 12 ) annularly surrounding, characterized in that the overlapping portions of the tapered end of the bag portion ( 12 ) and the peak reinforcement ( 14 ) are welded to each other over their entire surface mitein. 2. piping bag according to claim 1, characterized in that the bag portion ( 12 ) is formed from a first material blank with overlapping the welded and side edges. 3. Pastry bag according to one of the preceding claims, characterized in that the tip reinforcement ( 14 ) is formed from a second material blank with overlapping and welded side edges. 4. A method for producing a piping bag for pasty Le bensmittel according to any one of the preceding claims, characterized by the following steps:

• - Stapling a second material blank of Kunststoffbeschichte Tem textile fabric to a substantially conical or Kegelstumpfför shaped peak reinforcement ( 14 ) by means of a welding process and
• - Welding the tip reinforcement ( 14 ) with a tapered end of a substantially conical or frusto-conical Beutelab section ( 12 ), wherein overlapping portions of the Spitzenver reinforcement ( 14 ) and the bag portion ( 12 ) welded over the entire surface who the.

5. The method according to claim 4, characterized in that the stitching of the second material blank to the tip reinforcement ( 14 ) takes place by means of ultrasonic welding. 6. The method according to any one of claims 4 or 5, characterized by the step of cooling a holding device ( 30 , 32 , 34 ) after welding the tip reinforcement ( 14 ) with the rejuvenated th end of the bag portion ( 12 ). 7. The method according to any one of claims 4 to 6, characterized in that the stitching of the second material blank to the Spit zenverstärkung ( 14 ) in abutment against the tapered end of Beutelab section ( 12 ). 8. The method according to any one of claims 4 to 7, characterized in that the welding of the tip reinforcement ( 14 ) with the tapered end of the bag portion ( 12 ) takes place by thermal welding Shen. 9. A device for carrying out the method according to one of the preceding claims, characterized by at least one cone o the frusto-conical support ( 30 , 3 , 3 , 34 ) for receiving a tapered end of a conical or frusto-conical Beutelab section ( 12 ) and / or a tip reinforcement ( 14 ) and at least one welding punch ( 36 , 38 ) for fixing the tip reinforcement ( 14 ) and / or welding the tapered end of the bag section ( 12 ) to the tip reinforcement ( 14 ) in contact with the support ( 14 ). 30 , 32 , 34 ) or in the immediate vicinity of the support ( 30 , 32 , 34 ) can be ge introduced. 10. The device according to claim 9, characterized in that the at least one welding punch ( 38 ) is electrically heated. 11. The device according to claim 9 or 10, characterized in that the welding punch ( 38 ) has a heatable inner surface which has the shape of a lateral surface of a cone or truncated cone. 12. Device according to one of claims 9 to 11, characterized in that the at least one welding punch ( 38 ) is designed as ultrasonic sound welding stamp. 13. The device according to one of claims 9 to 12, characterized by at least one cooling punch ( 40 ) in contact with the support ( 30 , 32 , 34 ) or in the immediate vicinity of the support ( 30 , 32 , 34 ) ge introduced , 14. The apparatus according to claim 13, characterized in that the cooling punch ( 40 ) has a coolable inner surface which has the shape of a lateral surface of a cone or truncated cone. 15. Device according to one of claims 9 to 14, characterized in that the support ( 30 , 32 , 34 ) is provided with at least one, to be ner lateral surface opening through passage, which is acted upon by compressed air. 16. Device according to one of claims 9 to 15, characterized in that the at least one conical or frustoconical on bearing ( 30 , 32 , 34 ) on a turntable ( 26 ) is arranged, wherein the support ( 30 , 32 , 34 ) by the turntable ( 26 ) in a position below a welding station with the welding punch ( 38 ) is movable. 17. The apparatus according to claim 16, characterized in that the support ( 30 , 32 , 34 ) in a position below a cooling station with egg NEM cooling punch ( 40 ) is movable. 18. The apparatus of claim 16 or 17, characterized in that the support ( 30 , 32 , 34 ) in a position below a Heftstati on with a staple punch ( 36 ) is movable.