JPS58134935A - Method and apparatus for producing hollow bread confectionery - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The invention relates to a hollow pan comprising a body consisting of a rolled pastry strip, in particular a Watsuful strip, whose inner surface is at least partially coated and optionally at least partially filled. A method and apparatus for producing confectionery.

BACKGROUND OF THE INVENTION A variety of machine-made waffle products, sold filled or unfilled, and commonly known as luxury goods, are well known in the food and luxury goods industries.

The products of this Watsuful industry include, for example, Watsufuru containers, Watsufuru cups, waffle plates, flat Watsufuru discs, low-grade hollow Watsufuru, hollow Hohl-hippel, Watsufuru small rolls, ice cream containers, filled Watsufuru, ice cream Watsufuru. , filled short waffle sticks, waffle slices, etc. These waffle products are manufactured from waffle powder, baked to a moderate firmness,
It is a baked product with a brittle, crumbly consistency that breaks easily. This baked product is baked to be as dry as possible and has very low moisture content.

Individual different Watsuful products can be manufactured in different ways. For example, some Watsufuls are baked in a still soft state after firing in their final form. This applies, for example, to Watsufuru containers, Watsufuru taps, Watsufuru disks, lower grade hollow Watsufuru, etc.

In the production of other Watsuful products, Watsuful sheets or endless Watsuful strips are first baked and then, while still soft, formed into the final shape, in which the Watsuful products are cooled and rolled. It becomes a brittle consistency. Examples of this are sugar - ice cream containers, hollow ice cream containers, sugar -
Examples include waffles and small rolls.

For the production of other types of waffle products, a number of waffle flakes are baked, cooled, creamed and stacked into one waffle mass. This cream-filled waffle mass is then cut into small, convenient pieces of equal size. This piece is then packaged into single or multi-piece units and optionally sold in airtight packaging.

Depending on the product, various Watsuful products may be provided with a coating consisting of sugar or chocolate, for example, or with a coating such as ice cream, ice cream, etc. -4, az
'v-')'I. It can be filled with various filling materials.

The aforementioned Watsuful product is different from Watsuful, which is a baked product similar to a roll or egg-filled pastry that is baked by housewives in the usual way in a Watsuful mold and softened by soaking in water. This Watsuful made by housewives is completely different in its consistency and usage from the aforementioned Watsuful products of Watsuful Industries.

It is known from IJA Patent No. 262187 to wind up a Watsufuru strip which is still in a warm plastic state to form a sleeve-like Watsufuru body. In this case, a Waffle strip supplied from a continuously operating Waffle machine is continuously wound over a winding mandrel in a threaded manner to form an endless sleeve-like body. This sleeve-like body is rotated for winding. The fixed winding mandrel or the rotatably mounted drivable winding mandrel is provided with a longitudinal bore, which narrows at the free end of the winding mandrel to the spray nozzle. Fat or chocolate is sprayed onto the inner wall of the sleeve-like body by this nozzle. After the sleeve-like body and the spray material have hardened, the sleeve-like body is cut with a circular saw.

In the case of this known method, only materials that can be sprayed or that can be sprayed by heating can be used. Spraying requires a conveying medium, for example air, in order to precisely distribute the material. If the fat or chocolate to be applied is liquefied by heating in order to be sprayable, the risk of overheating the fat or chocolate limits the liquefaction of these by heating. Therefore, in this case as well, air must be mixed as a conveying medium in order to be able to spray. At that time, the air used as a conveyance medium cannot be discharged from the Watsufuru body that has been rolled up during the cutting process without destroying the Watsufuru body, which limits the amount that can be carried in by spraying. It turned out that there were shortcomings. In order to make the material sprayable, it is not possible to liquefy it by mixing it with other liquids or by dissolving it in solution. This is because the material will only adhere to the inner surface of the sleeve-like body if the solvent or carrier liquid for the material evaporates or is absorbed by the waffle body. The hollow space inside the waffle body is too small to allow the solvent or carrier liquid to evaporate, and the time required to cut the sleeve-like body is insufficient. Solvents or carrier liquids cannot be absorbed by the Watsufuru body. This is because this will lead to the destruction of the Watsuful main body. Furthermore, when fat or chocolate is sprayed onto the inner surface of the sleeve-shaped body, there is the disadvantage that the spraying creates a cloud of smoke in the hollow space of the sleeve-shaped body.

This fume contaminates the circular saw used to split the body, which over time becomes inoperable and must be cleaned frequently. This will lead to interruptions in the manufacturing process of the Watsuful body. Furthermore, during the cutting process, fumes flow out from inside the Watsufuru body into the surrounding area, contaminating the entire surrounding area. Other disadvantages of spraying coating materials are:
The point is that only some coating material can be applied. When filling a sleeve-shaped waffle body produced in this known manner, it can only be filled after the endless sleeve-shaped body has been cut into individual pieces. This is because only then can the filling material be introduced into the individual sleeve-like bodies without mixing it with the sprayed fat or chocolate. The subsequent filling of individual sleeve-shaped Watsufuru bodies requires complicated handling operations, since after cutting the individual pieces must be grasped in an appropriate manner and fed to a separate filling device. This is because it will not happen.

It is known from R. Pat. In this case, the Watsuful strip, which is still soft after being baked, is wound continuously in a threaded manner and overlappingly through a winding mandrel to form an endless sleeve-like body. The sleeve-like body is completely filled with creamy material via the longitudinal holes of the winding mandrel, and before the material or the sleeve-like body hardens, the sleeve-like body is cut to the desired length. In order to seal the sleeve-like body from the sides, steam is blown onto the overlapping surfaces of the individual windings of the Watsuful strip before they overlap. The overlapping surfaces are then glued together or welded together under pressure. The Watsuful strip used in this case is 60-601
1. Containing sugar, glucose or malt preparations, these substances rapidly dissolve and adhere under the action of moist heat. In the case of this well-known hollow bread confectionery, the inner surface of the sleeve-shaped Watsuful body is not coated.
Do not soften the Watsuful strip and adversely affect the strength and quality of the Watsuful body! Only filling materials that do not cause damage can be filled.

The filling of this known hollow pastry is carried out immediately after the winding of the Watzful strip and through the winding mandrel, so that, for example, a thermally insulating layer can be formed between the filling material and the Watzful body. , it is simply not possible to coat the rolled sleeve-like body before filling.

BACKGROUND OF THE INVENTION From Austrian Patent No. 52;M29, an apparatus for producing hollow pastries containing a soft filling material is known. In this case, the pastry strip is provided on one side with a layer, for example a chocolate layer, which is thermally insulating with respect to the filling material and which is directed inwardly with this layer and threaded continuously through the winding mandrel. It is rolled up to form an endless sleeve-like body. Thereby, the confectionery windings are glued together by the chocolate layer in the overlapping areas. The insulation layer is then applied to the pastry strip by spraying, pouring or pouring. The filling material is introduced into the hollow pastry through the central longitudinal hole of the winding mandrel. In the case of this device as well, the selection of materials that can be applied to the pastry strip is limited to substances that can be sprayed, jetted or poured at room temperature or that can be brought to this state by heating. Ru. In the case of this known device, in order to be able to spray without spraying, the mixed air is heated only until it can evaporate and the material that can be liquefied by heating can be poured. However, even after applying the material, the pastry strip may be curved so that the material can be applied to the pastry strip during subsequent winding of the pastry strip. It must have elasticity so that it can be molded together. Furthermore, in order to adhere to the outer surface of the pastry strip, the material must have sufficient adhesion ability during winding of the pastry strip. Furthermore, the coating material itself must maintain the seal of the insulating layer as it is compressed by the winding process. This is done, for example, by bringing the material into contact with the outer surface of the still warm pastry strip when it is liquified by heating.

The use of substances which cannot be sprayed, jetted or poured at the operating temperatures of the winding device or which do not melt on contact with the pastry strip are unsuitable for this method of applying the covering layer.

The object of the invention is to eliminate the above-mentioned drawbacks and inadequacies.

According to the invention, a pastry strip, in particular a soft Watsuful strip after baking, is continuously wound by a mandrel in a threaded manner and one over the other to form an endless rotating sleeve-like body, which The inner surface of the body is coated with an edible material, and the body is divided into individual pieces of predetermined length, with the coating material being fed through the mandrel to its free end and covering the area of the mandrel. A method for producing a hollow pastry, in which the inner surface is coated, at least in part, and optionally at least in part filled, in which the one or more materials are applied to the inner surface of a sleeve-like body, in which the inner surface is coated, at least in part, and optionally at least in part filled. In a liquid or spreadable state, it is applied to the inner surface of the sleeve-like body and/or through one or more openings provided in the end face of the mandrel or in the rear end of the mandrel in the transport direction of the sleeve-like body. Through one or more openings provided in the outer periphery or in the transition area from the end face of the mandrel to the outer periphery, the material flows into the inner surface of the sleeve-like body and, optionally, after having flowed to the inner surface, the material may characterized in that the flowable material dispensed into the parts and optionally fed after applying the material to the inner surface and/or the filler material introduced into the sleeve-like body is fed through the mandrel or the protrusion of the mandrel. The problem can be solved by the following method.

This method according to the invention avoids any undesirable damage to the hollow space of the sleeve-like body and the cutting device. This is because the application material never scatters and, as a result, no fumes are generated in the inner chamber of the sleeve-like body.

Furthermore, in addition to liquid substances, materials that do not liquefy even when heated can be applied by the method according to the invention. According to the method of the invention, when a substance whose melting point is higher than the temperature of the pastry strip during the rolling process is applied to the pastry strip, it is necessary to apply the substance until it becomes sticky during application. Just heat it. In this case, according to the invention, the application process is assisted, since the material is distributed after it has impinged on the inner surface. By dispensing the application material, this material adheres to the pastry strip.

The consistency of the dispensing material can then be selected such that the force required to distribute the material onto the inner surface of the wound body does not have an adverse effect on the wound body.

Furthermore, the flowable material can be applied at the edges where the material is applied to the inner wall of the sleeve-like body. This flowable material is applied through the mandrel to, for example, the still tacky coating material. The surface roughness of the inner surface of the coated sleeve-like body is therefore increased, so that the filling material introduced later is better retained in the hollow pastry, in particular with crystals as the granular flowable material. Sugar, ground walnuts or puffed rice can be used. However, powdered flowable materials such as powdered sugar or the like can also be applied to the coating material.

Furthermore, the method of the invention allows the filling material to be introduced into the interior of the sleeve-like body through the mandrel itself, even before the sleeve-like body is cut into individual pieces. The necessary thermally insulating separating layer of the pastry strip and the filling material is then already applied to the inner surface of the sleeve-shaped body. When the endless sleeve-like body is cut into individual pieces, a finished hollow pastry product with a coated and filled interior is immediately obtained. This finished product only needs to be packaged.

By covering the already rolled sleeve-like body, the shape fixing of the wound waffle strip is carried out by welding it, for example by applying steam to the overlap region of the strip winding. Therefore,
High demand lines, such as are required for example when rolling together the layers applied to a pastry strip, are unnecessary with this internally applied material. Furthermore, in the method of the present invention,
The amount of coating material applied can be limited to the amount essential for thermal insulation.

According to a variant of the method, the material flowing out of the end face of the mandrel or the material flowing out of the opening provided in the mandrel end behind the sleeve material body in the direction of conveyance can be allowed to settle essentially only under the action of gravity. 2° This method variant is particularly advantageous in the case of liquid or easily liquefiable substances,
In this case, jetting or splashing of material is avoided.

In another variant of the method, the material flows out under pressure through an opening provided in the outer circumference of the mandrel, and this pressure causes the sleeve-like body to radially move up to approximately the thickness of the coating layer at a time. Expanded. This results in the application of materials that are easily brushable or plaster-like and therefore require relatively high conveying pressures. Furthermore, the thickness of the coating layer can be adjusted simply by changing the conveying pressure or outflow pressure.

The invention further provides that the outlet is provided in the end face of the mandrel or its protrusion and/or in the mandrel periphery or in the transition region to the mandrel periphery, the outflow having a cross section that prevents material from flying off. The filler introduction device provided by the invention likewise comprises at least one channel guided through the mandrel or its protrusion and separate from the supply channel for the coating material, the outlet of which is located in the sleeve-like body. located behind the outlet for the coating material in the conveying direction, where the conveying device is optionally provided in the channel for the filling material;
and a winding attached to at least part of the mandrel, characterized in that a device is provided for distributing at least a portion of the coating material, optionally after it has been applied to the inner surface of the sleeve-like body. a winding device, a device for continuously feeding the pastry strip into the winding device, and a device for dividing the sleeve-like body into individual pieces, the feeding device passing through the mandrel to the winding device; Producing a hollow confectionery with at least a part of the inner surface coated and optionally at least a part filled, comprising at least one feed channel extending towards the end, which feed channel is provided with at least one outlet. We propose an apparatus for carrying out the method.

A device of this construction allows the outlet to be placed in close proximity to the area of the sleeve-like body where the coating material is applied.

Furthermore, the structure of the present invention allows the filling material to be introduced into the sleeve-like body in a desired state during each filling process.

Another advantage of the device according to the invention is that it provides a transport device for the filling material in the filling material channel. This conveying device makes it possible to introduce filling materials, which are very difficult to convey, into the sleeve-like body. The transport device for the filling material can also be provided with a drive that is separate from the drive of the winding device or the mandrel. Therefore, it is possible to adjust the conveying amount and the conveying amount I of the filling material conveying device independently of the winding speed of the confectionery strip or the application speed of the coating material, and under the optimum conditions for each conveyed material. can.

In a further embodiment of the invention, the outlet, which is designed as an annular groove, slit or hole, is formed in the application section which is connected to the winding section of the mandrel in the conveying direction of the sleeve-like body. This structure makes the entire device very compact.

According to the invention, the application section of the mandrel can be designed as a special application head. In this case, the mandrel according to the invention can be easily switched, for example from the application of one material to the application of several materials, by replacing the application head with another one. In its winding section, the mandrel is provided with all the necessary channels for one applicator head and for the other applicator heads.

The invention further provides for at least one tube passing longitudinally through the mandrel. This tube can be used to guide the filling material through the mandrel. In this case the tube does not rotate together with the mandrel. This tube can be fitted into the hole in the mandrel. This mandrel surrounds the entire tube. Furthermore, the intermediate chamber between the outer wall of the tube and the inner wall of the bore of the mandrel can also be used as a conveying channel for the coating material or filling material.

In another embodiment of the invention, the mandrel is formed as a sleeve, to the inner surface of which the tube, which is mounted in the mandrel and made of a material that is particularly difficult to conduct heat, adheres almost completely;
The protection tube is provided with a flat surface or groove on the outer surface of its section adhering to the inside of the sleeve, which flat surface or groove forms with the sleeve a supply passage for the coating material; The bore of the attached tube communicates with an outlet for the coating material provided therein and forms a passage for the filler material. This embodiment of the invention allows the filling material to be introduced into the interior of the pastry strip which is rolled up to form a sleeve-like body. This filling material must be at a predetermined temperature when filling the sleeve-like body.

This temperature may be higher or lower than the temperature required during the rolling process of the pastry strip, so that the optimal temperature of the filling material during the filling process is It is not affected by the body's optimal temperature.

If the temperature at which the pastry strip is rolled is higher than the temperature of the filling material, it is advantageous if the opening of the thermally insulating tube is appropriately spaced from the outlet for the coating material on the outer periphery of the mandrel. Thereby cooling the pastry strip already rolled to form a sleeve-like body before the cold filler material impinges on the inner coated and rolled pastry strip to form the tube. I can do it.

According to another feature of the invention, at least one section of the mandrel consists of two concentric tubes, between which a supply channel for the coating material is formed, the inner tube being the outer tube. It projects beyond the end face and is provided at its free end with a flange, which together with the end face of the outer tube forms an outlet for the coating material of1. In the case of this construction, since the conveying cross-sectional area of the supply channel is large, a large amount of coating material can be conveyed via the mandrel per unit time. This greatly increases the manufacturing speed of the inner-lined sleeve-like body. Forming the inner tube thinly allows the filler material to be conveyed through the interior of the inner tube to the extent necessary for high speed manufacturing of sleeve-like bodies.

According to the invention, the outer tube and the inner tube can be made rotatable relative to each other. Thus, the hollow pastry can be filled through the stationary inner tube even as the outer tube rotates. Moreover, the rotation speed of the inner tube can be made higher than the rotation speed of the outer tube.
The coating material can be dispensed through a part of the application head located behind the coating material outlet.

Another feature of the invention is that in the channel for the filling material and on the wall of the channel, a recess or a ridge is formed. This results in conveyance, especially in the case of flowable filling materials, by the walls of the channels. In this case, if the channel wall is formed by the inner wall of the inner tube and can rotate relative to the outer tube, the conveying speed of the filling material is selected independently of the winding speed of 6 s. be able to.

In a further embodiment of the invention, a conveying screw is provided in the filling material channel and in particular can be driven separately from the mandrel. With this structure, the amount, speed or pressure of the filling material to be conveyed can be selected in accordance with the particular filling material. By driving separately from the mandrel, this parameter can be adapted to the current production rate of the sleeve-shaped body. Furthermore, when changing the filling material, it is only necessary to change the conveying screw, thereby ensuring optimal surface filling conditions even in the case of different filling materials.

Hereinafter, the present invention will be explained based on a hollow bread confectionery. In the case of hollow pastry products, the baked and still soft Watsufuru strip is used as the pastry strip to produce the sleeve-like body. It is clear that the invention is not limited to the use of bread strips made of Watsufuru flour. In addition to waffle flour with a high sugar content and waffle flour with a low sugar content, which form plastic confectionery strips in a soft state and harden on cooling, they are made into endless orbits. Other bakery flours may also be used.

In the embodiment shown in FIGS. 1 and 2, a pastry strip 1, e.g. It is pressed against the winding section 4 of the mandrel 2 by a feed/press roll 3 driven by. The feed/press roll 3 is arranged so that its axis is parallel to the axis of the rotating shaft 2, and is provided with a thread on its outer periphery. By means of this screw, a feed movement is imparted to the waffle strip, which is fed in cuts and obliquely to the axis of the mandrel 2. Behind the mandrel 2, a separating device 5 is provided for separating the pastry strip 1, which is wound onto the mandrel and forms a sleeve-like body. This separating device may be scissors or a circular saw rotating together. The pastry strip 1 is fed, for example from a continuously operating Watsufuru baking machine, to a device consisting of a feed and pressure roll 3 and a mandrel 2, and is wound around the mandrel by this winding device to form a sleeve-shaped body. becomes. This sleeve-like body advances along the mandrel while rotating.

In order to glue the overlapping edges of the confectionery strip, which is designed as a one-full strip, the steam sprayer can arrange the nozzle 6 approximately tangentially to the mandrel 2. This nozzle sprays steam onto the overlap area of the waffle strip before it is wound (see FIG. 2). Steam can also be applied to the pastry strip 1 by constantly applying a small amount of water to a hot thin plate or the like provided below the pastry strip. An application section 9 adjoins the winding section 4 of the mandrel 2 at the free end of the mandrel. This application section is provided with an annular groove 10 on its outer periphery in the area of the free end of the mandrel. This annular groove 10 is formed on the side of the free end of the mandrel by a dimensional correction shoulder 38, the diameter of which is smaller than the diameter of the mandrel. This size corresponds to #1 twice the thickness of the applied layer. A coating material 56 is fed into the annular groove 10 via a radial channel 35 from a feed channel 36 provided in the center of the mandrel 2 . This coating material 56 fills the entire annular channel formed by the sleeve-like body 39 and the annular ring 10, and is in contact with the inner surface of the sleeve-like body 39 over the entire circumference of the mandrel. This body, as it moves with the mandrel 2, strips the mandrel of the coating material adhering to its inner wall. The dimensional correction shoulder 38 removes the excess amount of the inner wall of the sleeve-like body 39. The layer applied to the sleeve-like body thus has a thickness corresponding to the annular gap between the body 39 and the dimensioning shoulder 38. When the dimension correction shoulder 38 is formed into a cylindrical shape, the inner surface of the coating layer of the sleeve-like main body 39 becomes cylindrical.

In order to form an additional lip projecting radially inwardly from the inner wall covering layer, the dimensioning shoulder can be provided with an axial groove adapted to the desired lip cross-sectional area. When the inner wall covering layer has a groove-like recess, a radially projecting rib is provided on the dimension correction shoulder 38.

In the embodiment shown in FIGS. 3 to 5, the application section adjoining the winding section 4 of the mandrel 20 is likewise provided with an annular groove 10 on its outer periphery. A feed channel 11 for the coating material to be applied to the inner surface of the sleeve-shaped body extends longitudinally through the mandrel into this annular groove. This supply channel 11 for the coating material extends through the winding section 4 of the mandrel 2 to the edge region of the mandrel and opens from the side into the annular groove 1o.

The supply channel starts from a reservoir 12 behind the rolls 3. This reservoir is supplied with internal coating material through a reservoir or pump (not shown) conduit 13.

The mandrel 2 is provided with a central hole 7 which passes through the entire mandrel 2 and through which the filling material 8 is introduced into the interior of the sleeve-like body.

The opening of the hole 7 at the rear end of the mandrel 2 opens into a channel 15 starting from a storage container 14 for filling material. A blowing nozzle 16 arranged coaxially with the mandrel 2 pours into this passage (FIG. 3).

The flowable filling material exiting from the storage container 14 through the passage 15 is blown into the interior of the sleeve-like body through the bore 7 by said blowing nozzle 16 . In this case, a part of the sleeve-shaped body is filled. If a very small amount of flowable material, such as walnuts, sugar, krokant, expanded rice, etc., is placed on the coated inner surface of the sleeve-like body, it will spread out towards the end of the mandrel 2. Preferably, the hole 7 has a hole 7 (FIG. 20).

According to another embodiment (FIG. 4), a conveying screw 17 can be inserted into the hole passing through the mandrel 2'.
. This conveying screw is supplied with the filling material to be conveyed from a storage container 14 . The conveying screw 17 extends to the end of the mandrel 2 and is driven at the rear end of the mandrel 2 via a screw shaft. This embodiment can be used with the mandrel driven or stationary.

This is because the amount of filling required at any given time can be adjusted independently of the mandrel by means of the rotational speed of the conveying screw. However, it can also be transported by a stationary transport screw.

In this case, the conveyance amount is determined only by the amount of filling material charged.

As can be seen from the embodiment shown in FIG. 5, if the mandrel 2 rotates, the rotation of the mandrel can be used to convey the filler material through the central hole 7 of the mandrel 2. In order to improve the conveying effect of the filling material, individual screw-like lips 18 are provided on the wall of the hole 7. The rib can also be formed as a single lip extending all the way through.

Various embodiments of the mandrel 2 are shown in FIGS. 6-11. In this case, one type of coating material is applied to the inner surface of the sleeve-like body in the application section 9.

The embodiment of FIG. 6 differs from the mandrel of FIGS. 3-5 only in that there is no central hole for the filler material.

The structure of the application section 9 of the mandrel 2 is the same in these four embodiments. The application section 9 has a section which is connected to the annular groove on the end side of the mandrel 2. This section has the same diameter as the mandrel 2. When the application section 9 is formed in this way, the coating material is conveyed into the annular groove 10 under the following pressure when the coating material is applied. That is, the sleeve-shaped body is conveyed under such pressure that it temporarily and locally expands in the area of the annular groove.

In the embodiment shown in FIG. 7, the mandrel 2 is provided with a conical taper 33 in its application section 9. In the embodiment shown in FIG.

On the outer periphery of the mandrel 2 in the transition region from the cylindrical mandrel section to the conical tapered section 33, four uniformly distributed outlet openings 34 are provided.

This outlet communicates via a radial channel 35 with an axial supply channel 36 for coating material. The outlet 55 is formed as a slit extending in the longitudinal direction of the mandrel, part of which is located in the cylindrical section of the mandrel, and the other part in the conically tapered part. By forming it in this way, the passage 55.5
The coating material supplied via 6 flows out of the outlet 35 partly at the outer circumference of the mandrel and partly at the end face. Depending on the thickness of the layer to be applied, the angle of inclination of the cone of the conical taper section is selected or the outlet is offset further into the conical taper section 33.

In this embodiment, a threaded strip of coating material is applied to the inner surface of the sleeve-like body by each outlet. The inclination of the thread-like strip or helix is determined by the ratio of the rotary to force-feeding movement of the sleeve-like body with respect to the stationary or rotating mandrel 2. In the example shown in FIG. 7, four threaded strips (sleeve-like If the feed speed of the body is high and the torsion relative to the mandrel is low), or four thread-like strips are formed whose edges overlap one another.

When the mandrel rotates synchronously with the sleeve-like body, longitudinal strips extending parallel to each other are formed on the inner surface of the sleeve-like body.

The outlet 40 for the coating material can also be designed as a slit 40 extending obliquely to the mandrel axis. This slit is open on the outer periphery of the mandrel, or is partially open on the end face.

In the embodiment shown in FIGS. 8a and 8b, the end 41 of the slit on the outer periphery of the mandrel is arranged at an angle with respect to the mandrel axis. On the other hand, in the embodiment shown in FIGS. 9a and 9b, the end 41 of the slit is located on a line perpendicular to the axis of the mandrel.

The bottom of the slit is a supply passage 3 located in the center of the mandrel 2.
It communicates with 6. With this configuration, it is possible to increase the amount of coating material to be charged.

In the embodiment shown in FIG. 10, the application section 9 is provided with an outlet 19 arranged on the end face of the mandrel. This outlet communicates via a supply channel 11 for coating material (n) with one or more supply devices for coating material (n) consisting of a charging conduit 13 and a reservoir channel 12 . The coating material flows out of the end face of the mandrel through this outlet. Depending on the consistency of the coating material, the coating material is either sprayed onto the inner surface of the hollow pastry as a thick jet or pressed against the inner surface of the hollow pastry as a strand. As soon as the material flowing out in liquid form reaches the inner surface of the sleeve-like body, this material is distributed because it is liquid, and this material is distributed according to the feed rate of the sleeve-like body in the axial direction of the mandrel. , forming continuous layers or thread-like strips. The strips may only partially overlap or be completely separated from each other.

When the mandrel is at rest, the coating material impinges under the action of gravity against a substantially vertical portion of the inner surface of the sleeve-like body below each outlet.

According to other embodiments, a plurality of axial passages can be provided in the mandrel 2, for example when a plurality of different coating materials are placed on the inner surface of the sleeve-like body one above the other or side by side. This passage opens at the end face of the mandrel. In order to ensure separation of the individual coating materials, the individual channels feed into individual projections projecting from the end of the mandrel. In this case, the spacing between the end of the mandrel and the individual openings is of different size.

Advantageously, this projection projecting from the end face of the mandrel is formed by a tube fitted into a hole in the application section of the mandrel. However, the protrusion can also be formed by a tube which passes through the entire sleeve-shaped mandrel and projects from the end of the mandrel, with different lengths (see FIG. 12).

In another embodiment, the outlet 19 is provided in an annular region 20 of the end face of the mandrel 2, close to the mandrel outer circumference. A projection 21 projecting from the end face of the mandrel 2 is connected to this region on the mandrel axis side.

The boundary surface 22 of this projection, which points radially outwards, leads axially to the outlet 19.

The coating material flowing out of the outlet 19 to the end side is retained by said interface 22 in close proximity to the inner surface of the sleeve-like body guided along the outer circumference of the mandrel 2. The coating material is thus applied to the inner surface of the sleeve-like body in a uniform layer thickness (No. 11a).

11k) (see figure).

If the mandrel 2 is stationary or rotates slowly, it is formed as a cylindrical surface and if necessary the outlet 1
Due to the interface 22, which can be provided with a recess axially connected to the outlet 9, premature settling of the coating material strands exiting the respective outlet 19 is avoided.

When the mandrel 2 rotates, the boundary surfaces of the projections on the end face of the mandrel distribute the coating material strands exiting from the individual outlets 19 in a continuous, uniform layer. Furthermore, this embodiment allows the velocity of the coating material to flow out of the mandrel relative to the sleeve-like body to be kept low. Thus, for example, the mandrel can rotate about its axis with approximately the same angular velocity as the sleeve-like body wound around it.

Thereby, the sleeve-like body and the mandrel can no longer slide relative to each other in the longitudinal direction, so that the covering material no longer rotates when it strikes the inner surface of the sleeve-like body. At that time, the outlet 19 is connected to the annular region 20 of the protrusion 21 and the boundary surface 22.
This arrangement results in a uniform layer thickness around the inner surface of the sleeve-like body.

The protrusion 21 can be formed integrally with the mandrel 2. However, it is also possible for the projection to be designed as a plug element fitted into a hole in the mandrel 2 (see FIG. 11a).

Forming the protrusion 21 on the closure member 23 allows for a wide range of uses for the mandrel. This closure plug closes the hole 7 passing through the mandrel 2. At this time, the end face outlet 19 of the supply passage 11 opens outward in the radial direction of the closure member 23 from the mandrel. When the closure member 23 is attached, the inner surface of the sleeve-shaped main body is coated with the mandrel. This is done by the mandrel 2 through the outlet 19 provided on the end face of the mandrel 2, and the light-eliminating material is not introduced into the sleeve-like body. If this closure plug element is replaced by a plug element with a through hole, the filling material can be introduced into the interior of the sleeve-like body by means of one and the same mandrel 2.

In another variant (see Figures 13a and 15b), the closure member 23 is replaced by the applicator head 24, and the feed passage 11 opens into an annular groove 264C formed between the end face of the mandrel 2 and the shoulder 25 of the applicator head. are doing. Another annular groove 27 is formed in the shoulder 25 which is reduced towards the free end of the applicator head 24;
This annular groove communicates via a radial passage 28 with a blind bore 7 which forms an extension of the bore 7 of the mandrel.

The hole 7 in the mandrel 2 then forms a feed channel for the second coating material. This second coating material is applied by an annular groove 27 over the first coating material applied to the inner surface of the sleeve-like body by an annular groove 26 .

In this case, the thickness of the first coating material layer and the thickness of the second coating material layer are determined on the one hand by the maximum diameter of the shoulder 25 and by the application head 24.
is determined on the one hand by the degree of inclination of the shoulder towards the free end of , and on the other hand by the pressure of the covering material in the annular groove 26 , 27 .

In another variant of the applicator head, a projection 30 is connected to the shoulder 25 . In this case, a supply channel 31 communicating with the bore 7 of the mandrel 2 is provided with its outlet 19 in the end face 32 of the projection 30 (see FIGS. 15a and 15b). In this case, the application head allows the first coating material to flow out of the outer periphery of the mandrel 2 via the annular groove 26 and the second coating material to flow out of the end face of the mandrel 2 or its application section via the outlet 19.

In the embodiment shown in Figures 16a and 1+6b, the outlet 3
4 are arranged as in FIG. 7, but the supply passages 3.5 extend axially close to the outer circumference of the mandrel, so that each outlet 34 is connected to its own supply passage 35. There is. In this embodiment, each outlet can be supplied with a different coating material. It is also possible for all supply passages 35 to supply one type of material.

A hole or passageway 37 can be provided through the mandrel 2 for introducing filler or flowable material into the internally coated sleeve-like body.

In the case of the embodiment shown in FIGS. 17a and 17b, the outlet is the 8th a,
As in the case of the ab diagram, it is formed as a slit 40, and the end 41 of this slit on the outer periphery of the mandrel is located on a line oblique to the mandrel axis. 21 a, 2
l b, 21 c In the embodiment shown in Fig. 9, the outlet is No. 9a.
, formed as a slit 40 as in the case of FIG. 9b,
An end 41 of this slit on the outer periphery of the mandrel is located on a line perpendicular to the mandrel axis. In both embodiments, a channel 42 for the filler or flowable material is provided in the center of the mandrel 2. In this case, the bottom of the slit is separated from the passage 42 by a wall (see Figures 17b and 2Ib), and the supply passage 35 provided in the mandrel is connected to the slit 4o.
(See Figures 17a, 17b, and 21a).

In the embodiments of Figures 8a, 8b, 17a and 17b,
The slit 40 opens at the outer periphery of the mandrel, and the opening of the slit 40 extends over half of the outer periphery of the mandrel.

21 a, 2 l b, 21 c, 9 a,
? In the embodiment shown in FIG. b, the slit 40 extends into the projection 4S pointing towards the front end of the mandrel 2, with a part of the slit opening opening towards the front end of the mandrel 2.

Instead of a plurality of feed channels 35, which are opened in the side wall of the outlet, which may be formed as annular grooves or slits, and which are arranged circumferentially in the mandrel 2, there are nine supply channels delimited by an axial cylindrical wall. A coating material can be supplied via the channel (see FIG. 14.19.25).

This passage is formed between an outer tube 44 guided along the outer surface of the sleeve-like body and a cylindrical rod arranged concentrically within this tube. This rod projects beyond the free end of the outer tube and is attached to a 7
It is equipped with a lunge 46. This 7 lange is the outer tube 4
The 7 flange 46 of the d-rod, which together with the end face 47 of 4 forms an annular outlet, forms a dimensional correction shoulder for the application process of the coating material.

The cylindrical rod itself can be provided with longitudinal holes. This hole serves as a feed passage for an applicator head 48 attached to the free end of the rod. In this embodiment (FIG. 14), two coating materials can be applied side by side. 1st
The first coating material is applied via the applicator head 48, and the second coating material flows out through an annular groove formed between the end face 47 of the outer tube 44 and the applicator head 48.

Alternatively, the embodiment of FIG. 14 can also be used only for applying one type of coating material by means of the application head 48. In this case, the application head 48 rotates independently of the mandrel 2. Distribution of the coating material is achieved by rotating the application head. In this case, unevenness that occurs when the coating head is stationary is avoided.

In the embodiments of Figures 19.22.23a, 2!3b and 25a, instead of a rod, an inner side is used to cover the sleeve-like body and to place the filling or flowable material into the body. A tube 45 is mounted within the outer tube 44. This inner tube 45 carries seven flange 46 at its free end.

This flange together with the end face 47 of the outer tube 44 forms the application section of the mandrel. The holes in the inner tube 45 serve as conveyance channels for filler or flowable material. □ of this conveyance path
A conveying screw 17 for filling material or flowable material can be installed inside (see FIG. 22).

According to other embodiments, the inner wall of the inner tube 45 can be provided with thread-like extending ribs (numbers 23a, 23b, 2
3c).

In the embodiment shown in FIG. 24, the application section 9 of the mandrel consists of a number of concentric tubes. The tubes mutually surround the conveying channel. An inner tube 45 is fitted into the outer tube 44 and has an applicator head 48 at its free end.

The applicator head 48 is formed as a cylindrical 7-flange projecting from the inner tube 45, the flanges of which are provided with a circumferential groove 49 provided between the end faces. This groove communicates with the interior of the inner tube 45 via a radial passage. Furthermore, another concentric tube 50 is mounted within the application head 4B. This tube starts from the front end face of the applicator head 48 and, together with the inner tube 45, forms a feed channel for the coating material exiting the applicator head. The interior of tube 50 serves as a filling passage for filler or flowable material, or as a supply passage for coating material to another applicator head 48' (see FIG. 25). First application head 48
Together with the end face 47 of the outer tube 44, the rear end face forms another annular groove for the outflow of the coating material.

27 a, 27 b, 26 a, 26 b
In the embodiment shown in FIG. 1, the mandrel is designed as a cylindrical sleeve 51 with a tubular insert 52. This insert fits tightly onto the inner surface of the sleeve. A flat section 53 is formed on the outer periphery of the tubular insert 52, which together with the inner wall of the sleeve 51 forms a supply channel for the coating material. This supply channel, as well as the flat section, ends in the area of the end face of the sleeve 51. A ring 54 is provided on the insert 52 immediately after the end of the flat section 53 . This ring forms an annular groove 55 with the end surface of the sleeve 51. In this annular groove, a passage formed by a flat portion 53 opens from the side. The passageway can also be formed by one or more longitudinal grooves on the outer periphery of the insert, but the planar section is more thermally insulating than the longitudinal grooves from the coating material carried in the passageway. A tube 51 in which the contact area between the materials forms the mandrel with the coating material conveyed in the passage.
It has the advantage of being smaller than the contact area between the two.

This ensures that the amount of heat delivered to the coating material via the winding mandrel is greater than the amount of heat released via the thermally insulating material.

Insert 52 may be made of a thermally insulating material and formed such that its end is located away from annular groove 55. This is suitable, for example, when filling a sleeve-shaped body formed by wrapping a Watsuful strip with ice cream. In doing so, a material, for example chocolate, which keeps the waffle strip moist, is applied to the inner surface of the sleeve-like body via the annular groove 55 and is conveyed through the tubular insert 52 as the inner-coated waffle body is cooled. The ice cream material is fed into the Watsufuru body which is cold and completely protected compared to the rolling process. The endless sleeve-like Watsufuru body is filled with ice cream over a section corresponding to the desired length of the hollow pastry, and this section is cut from the endless Watsufuru body.

28-31 show in longitudinal section some examples of hollow pastries made according to the method of the invention.

Figure 28 shows a hollow hippe 5 made by winding a Watsuful strip.
7 is shown. The inner surface of this sheep is coated with a layer of chocolate. This chocolate layer can be applied at once over the entire circumference of the inner surface of the hollow shell according to the invention.

Alternatively, multiple threaded chocolate tracks can be applied. The tracks are added to each other in a unit layer. The individual chocolate tracks then consist of different chocolate materials.

However, it is also possible for part of the threaded raceway to be constructed from fatty glaze material. Furthermore, it is also possible to leave a part of the inner surface of the hollow shell uncovered.

According to a variant of the method of the invention, only a narrow lip or serpentine material is extruded onto the inner surface of the hollow shell 57. The lips can extend thread-like and cross each other.

The chocolate trajectory t+ described above allows the lip to be applied parallel to the longitudinal axis of the hollow shaft.

FIG. 29 shows a hollow hippe 57. In this case, a flowable material 8 such as walnuts, crocanto, etc. is applied in one or more layers 5 of chocolate or fatty glaze.
8.

Before applying the flowable material 8, marmalade in the form of individual strips can be applied to the chocolate layer or fatty glaze. - Figure 30 shows a hollow hippe 57 whose interior is covered. This hollow cup is completely filled with nougat material 59, ice cream or cream.

Figure 31 shows a hollow hippe 5 whose inner surface is covered with chocolate.
7 is shown. Before applying crocanto as flowable material 8 to the nougat layer, nougat is applied as second application material 60 to the inner surface of this hollow hippe.

The coating material has traditionally been chocolate, fatty glaze, nougat or marmalade.

It is obvious that materials ranging from reams to plasters can be applied by the method of the invention, such as multipans, caramel materials, and the like.

The mandrel can be made from surface-hardened metal. The mandrel can also be made of a metal sleeve with a synthetic resin core inserted, or of synthetic resin alone.

It is clear that the invention is not limited to the embodiments described above. The individual features of the various embodiments of the mandrel and its application section according to the invention can be combined with one another in any desired manner without departing from the invention. For example, an integrally formed mandrel section can be made from a combination of two or more parts. Furthermore, the applicator head can be formed integrally with the mandrel or as a unit that can be screwed onto the mandrel.

Furthermore, each of the embodiments of the mandrel, application section or application head according to the invention can be used in one of the apparatuses according to FIGS. 1 to 5.

[Brief explanation of drawings]

FIG. 1 is a schematic side view of a first embodiment of the device according to the present invention, FIG.
Figures 6 to 5 are longitudinal cross-sectional views of other embodiments of the device according to the invention, figures 6a, 6b, 7.8a. 5b, 9a, 9b, 10: Figures 11a, 10 show different embodiments of mandrels and application sections according to the invention for applying a coating material to the inner surface of a hollow slot-shaped body; Figure 11b shows another embodiment of the mandrel according to the invention that can be applied with up to three types of coating material, Figures 12a and 12b show the embodiment of the mandrel according to the invention for one type of coating material. FIG. 13 shows another embodiment of the mandrel according to the invention, which can be coated with one or two coating materials, FIG. 14, 15a+
Figure 15b shows two embodiments of the mandrel for applying two coating materials, figures 16a, 16b, 17a. 17b, 18a, 18b, 19, 20.21″a, 21
Figures b, 21c, 22. 23a, 23b, 23a show various embodiments according to the invention in which a filler or flowable material can be introduced into the interior of the sleeve-like body in order to further coat the inner surface of this body. 24, which shows
FIG. 25 shows a mandrel application section consisting of a number of concentric sleeves for applying two coating materials and for introducing filler or flowable material into a sleeve-like body. Figure 26a shows an embodiment of a mandrel with two application heads for application. 26 b, 27 a, 27 b show two other embodiments of the mandrel according to the invention with a thermally insulating core;
28-31 are longitudinal cross-sectional views of four different embodiments of hollow pastries made according to the invention. Code 2 in the figure... Mandrel 4... Winding section 7... Passage 9... Coating section 10, 19.26.27.54.40.49. ... Outlet 11, 55.36 - ... Passage 17.18 ... Conveyance device 22, 25.55.5B, 45.46 ... Distribution device 24, 48 ... Application head 25 , 4
6 ・・・e・ Shoulder part 39 ・・・
... Sleeve-shaped main body 44.45.50 ... Pipe 46 ... e 7 lange 47 ... End surface 48, 48'
...... Coating head Fig, 28 Fig, 30゜Procedure amendment book value formula) % formula % 1. Indication of the case Showa S year patent application No. TSAO5''7 No. 2 Name of the invention?+X'7 Section+A Relation to the case of Eitonkata-bachi W1 3rd shift, person making the amendment Applicant 4, attorney 5, the date of the amendment order February 2nd, 1948 - related to the main work that took place. Rona** Diagram showing glue, irises 2
4- Roll up the covering material of Hiro and Nico and put 1$1 or awh material inside the sleep-shaped main body.
A large number of 0M mental 11c leaps or b's shinbo - the garden showing the cloth section, gtS ■ to the shinbo 011 related to the departure to the 29 brittle bastards to Ik the nik o * wi * -. The two OII Vaginal glues, No. 2s~8111, are made according to the book Marunakado Pan Tomb OIi') o Different Essays IIO Gindan-
Ichi de iru・Intermediate code 2...Suki・Shinbo 4...Maitsukan KM 1...1 bribe 9...IIIIIIK tone 1・* 1? , ffi&! F, 14.4, 4?
・Fist... -1-10 chant 1. Sumi s...! , 4 ・■
・e continuous route 17.10...m11

Claims (1)

[Scope of Claims] (1) An endless rotating sleeve-like body in which a bread confectionery strip, especially a soft Watsuful strip after being baked, is wound continuously in a threaded manner and overlappingly around a mandrel. forming a body, the inner surface of the body being coated with an edible material, and the body being divided into individual pieces of predetermined length, with the coating material being fed through the mandrel to the free end thereof. and applied to the inner surface of the sleeve-like body in the region of the mandrel, the inner surface being at least partially coated and optionally at least partially filled, the one or more materials is placed in a paste-like, liquid or spreadable state on the inner surface of the sleeve-like body through one or more openings provided in the end face of the mandrel or in the rear end of the mandrel in the direction of conveyance of the sleeve-like body. and/or through one or more openings provided in the outer periphery of the mandrel or in the transition region from the end face of the mandrel to the outer periphery;
The flowable material and/or material is dispensed onto at least a portion of the inner surface of the sleeve-like body and optionally after the material has been applied to the inner surface. A method characterized in that the filling material introduced into the sleeve-like body is fed through the mandrel or the protrusion of the mandrel. +21 Material flowing out through an opening provided in the end face of the mandrel or in the mandrel end rearward in the direction of conveyance of the sleeve-like body,
The method described in Patent No. (1), characterized in that the sedimentation is carried out solely by the action of gravity. (3) The material flows out under pressure through an opening provided in the outer circumference of the mandrel, and this pressure causes the sleeve-like body to
Claim No. 11 is characterized in that the thickness of the coating layer is expanded at most and in the radial direction at a time.
The method described in section. (4) The method according to any one of the preceding claims, characterized in that by applying one material, the inner surface of the sleeve-like body is partially or completely covered by one or more layers. . (5) The inner surface of the sleeve-like body is partially or completely covered by one or more layers by applying a plurality of materials. 3). (6) The method according to claim 5, wherein the layer or layers are each made of a plurality of materials. (7) The method according to paragraphs (11 to 6) above, characterized in that the material is applied as a spiral or a longitudinal strip.
The method described in any one of the preceding paragraphs. (8) The method according to claim (7), characterized in that the spiral bodies themselves are applied in an overlapping manner. 9. A method according to claim 7, characterized in that at least some of the spirals or longitudinal strips are applied one on top of the other. α● When applying the material as a helix or longitudinal strip, at least one of the helices or longitudinal strips of material is distributed onto a portion of the inner surface of the sleeve-like body after it has impinged on the inner surface. Claim No. 1 characterized in (
The method according to any one of paragraphs 7) to 9). all the material is applied to the inner surface of the sleeve-like body all around the inner surface in order to apply a layer that completely covers this inner surface;
Claims 11 to 6 are characterized in that a part of the layer thickness is then removed again from the inner surface at least in part of the outer periphery or along the helical gap. ) The method according to any one of the preceding clauses, characterized in that after the coating material of α has been applied, a flowable material is introduced, for example by blowing, into the sleeve-like body and is placed on the coating material. A method according to any one of claims 11 to 00. rolled into an endless rotating sleeve-like body, the inner surface of the body being coated with an edible material, and the body being divided into individual pieces of predetermined length;
In this case, a coating material is fed through the mandrel to its free end side and is applied to the inner surface of the sleeve-shaped body in the region of the mandrel,
One or more materials, in a paste-like, liquid or spreadable state, are provided on the end face of the mandrel or at the end of the mandrel on the rearward side in the direction of conveyance of the sleeve-like body, through one or more openings of IF number. The mandrel is placed on the inner surface of the sleeve-like body and/or flows out to the inner surface of the sleeve-like body through one or more openings provided in the transition area from the end face of the mandrel to the outer circumference at the outer periphery of the mandrel. , and optionally after flowing to the internal surface, the material is distributed on at least a part of the internal surface, and optionally after applying the material to the internal surface, a flowable material is supplied and/or a filling is introduced into the sleeve-like body. Apparatus for carrying out a method for producing a hollow pastry whose inner surface is at least partially coated and optionally at least partially filled, wherein the material is fed through a mandrel or a protrusion of the mandrel, comprising: a mandrel; a winding device attached to at least a portion of the winding device; a device for continuously feeding the pastry strip to the winding device; and a device for dividing the sleeve-like body into individual pieces; The supply device. In said device comprising at least one feed passage extending through the mandrel towards its free end, said feed passage having a small (at least one outlet) outlet 1:l (19.10. 26, 27f54 , 40.49) are provided on the end face of the mandrel (2) or its protrusion and/or in the mandrel outer station or in the transition area to the mandrel periphery, with the outlet opening (19.10
, 26, 27, 54, 40, 49) have a cross section that prevents the material from scattering, and the optional filling device is likewise guided through the mandrel or its protrusion to remove the coating material ( At least one passage is provided separately from the supply passage for nl, and the outlet of this passage is the outlet for coating material (n) (10, 19, 26, 27, 54, 40, 49), and depending on the case, the i transport device (17, 1
B) is provided in the passageway (7) for the filling material and optionally the coating material (n) is placed in the sleeve-like body (59).
) for dispensing at least a portion of the coating material after application to the inner surface of the (22°25, 5B146.4515
5). H1 or more passages (1,55956) is a ring (
10126+27149), slit (54,401
or formed as a hole (19) with one drain outlet each.
The device according to item Q3 of the scope of patent application, characterized in that each device is provided with one or more individual devices. 09. The device according to claim 13, characterized in that one or more passages (11, 55, 5, 61 each open a plurality of outlets. ae y number of passages (11, 55,561 is an annular groove (
10.26127, 49) or a common opening in the form of a slit (4o). (1η The device according to any one of claims 1 to ae, which is formed as an annular groove, slit or hole. αS The outlet formed as an annular groove, slit or hole is unique. Apparatus according to claim an, characterized in that the applicator head (24,483) is provided with a coating head (24,483), which applicator head forms an intermediate coating for the mandrel (19) for each coating material. Unique O application head (
48. 48'), the outlet (10.49) of which is in communication with the separate supply channel of the mandrel via its own channel H1*55). The device described in the range αth barrel. (to) Coating material (nl outlet (1.9.10.54)
, 26.40), a device (22, 59, 55, 25, 46.45)' for dispensing the coating material exiting from this outlet (19, 40; 34, 26, 40). Claim 0 of the above-mentioned patent is characterized in that:
The device according to any one of Items 3 to 1. QI) If the device for dispensing the coating material is located at the outlet (
26) or by the shoulder (25146) of the mandrel or applicator head or the sleeve-like body (3
9) The device according to claim 1, characterized in that it is formed by the boundary of the outlet (54) located at the front in the conveying direction of the device. (d) at least one tube (45.50) passing through the mandrel (2) in the longitudinal direction; (c) The mandrel is formed as a sleeve, and a tube made of a material with particularly low thermal conductivity and installed in the mandrel is completely attached to the inner surface of the sleeve, and the tube is completely attached to the inner surface of the sleeve. , on its external surface adhering to the inside of the sleeve, a flat surface or groove is provided, which flat surface or groove forms with the sleeve a supply passage for the coating material provided in the sleeve; 2. A device according to claim 1, characterized in that the holes in the arranged tube form passages for the filling material. It consists of two concentric tubes (44, 451), the inner tube (45) carrying at its free end the applicator head (48), the inner tube (45)
According to any one of claims 3 to 4, characterized in that the hole is formed as a supply passage for the coating material leading to the outlet of the coating head (48). The device described. (c) Between concentric tubes. A gap is formed as a supply passage for the coating material, and the inner tube (45) is connected to the outer tube (44).
protrudes from the end face (47) and is provided at its free end with a flange (46) which together with the end face (47) of the outer tube (44) forms an annular outlet for the coating material. The device according to claim 1, characterized in that: (d) another concentric tube (50) within the inner tube (45);
Claim 3 is characterized in that the tube is fitted with a tube which forms a passage for the filling material and, together with the inner tube (45), a supply passage for the coating material. Device. Claims (d) or ((d)) characterized in that:
C) Item 0 equipment. (To) The outer pipe (44) or the inner pipe (45) is provided in such a way that the force cannot be applied. Device. The conveyor device provided inside the coating material passage (7) is located at the four or raised portions formed in the passage (8).
The device according to any one of claims 13 to 1, characterized in that it is formed by one or more thread-like grooves or ribs ( 1
3. The device according to claim 1, wherein the passage wall is provided with the passage wall. Claim 1, characterized in that one or more conveying screws (17) are provided in the OD filling material channel (7), which screws can in particular be driven separately from the mandrel (2). Device according to any one of the claims 0 to 32, characterized in that the individual tubes are made of a thermally insulating material or are designed to be thermally insulating. The device according to any one of the ranges from item 0 to item ({11).