EP2727482A1 - Insertion wheel, device, strand machine and method for inserting objects into a material strand for the tobacco processing industry - Google Patents

Abstract

The wheel (10) has object retainers (14) comprising suction air openings that are loaded with suction air and/or compressed air. A cladding wall (20) is formed at a side of the wheel, where outer diameter of the wall is increased from a central object inlet (39) to the retainers. A guiding body (22) is arranged in an inner area enclosed by the wall, where outer contour of the body is connected with inner contour of the wall. Object channels (16) are formed at the outer contour of the body and guided from an object inlet-sided object retaining chamber (38) to the retainers. Independent claims are also included for the following: (1) a device for inserting objects into a material strand (2) a method for inserting objects into a material strand.

Description

The invention relates to a Einlegerad a strand machine of the tobacco processing industry, in particular a filter rod machine which is rotatable about a central axis of rotation and is designed to immerse with its scope for inserting objects in a strand of material, in particular filter tow strand, the tobacco-processing industry, wherein in the dipping Scope object recordings are arranged with suction air and / or compressed air acted upon first Saugluftöffnungen. The invention further relates to a device and a strand machine of the tobacco processing industry with a corresponding insert wheel and a method for inserting objects into a strand of material, in particular filter strand, the tobacco-processing industry.

The invention thus relates to the production of a strand of material, in particular a tobacco rod or filter rod, for rod-shaped articles of the tobacco processing industry, in particular for filter cigarettes. The tobacco rod or filter rod is cut to length after its production into individual tobacco rods or filter rods. The filter strand or the cut filter rods or tobacco rods contain as an essential part of one or more objects that influence the smoke or filter properties.

In the case of filter rods or a filter strand, the objects are in particular capsules with a solid shell, which are filled with a liquid. The liquid usually contains flavors or fragrances, for example menthol, in such cases. To use a smoker breaks the capsule before smoking by pressure on the filter and then ignites the cigarette. The pressure on the capsule in the filter releases the liquid so that the aroma of the liquid unfolds. This procedure offers a particularly intense or fresh taste experience. Corresponding capsules usually have a diameter of about 3.5 mm, but may also be smaller.

Alternatively, hard objects may also be used as objects in the context of the invention, as may smaller or larger particles, for example spheres or cylindrical objects made of activated carbon, extrudates or other filter materials or additives.

A generic technique comprises according to WO 2005/032286 A2 a capsule loading device into a filter tow strip with a rotating insert wheel. The insert wheel has at its periphery receptacles for capsules, in which the capsules are held after insertion with suction air. Upon further rotation of the inserter wheel, the circumference of the inserter wheel penetrates continuously insert the filter tow. As soon as in this case a capsule enters the filter tow, the suction air is switched off. So the capsule is stored in the filter tow and transported with this. At the location of the insert wheel, the filter tow strip essentially takes the form of a "U", with the insert wheel penetrating into the central recess or into the channel of the "U". Subsequently, the forming of the filter strand, in which the filter tow is closed, compacted and wrapped with a wrapping strip.

The promotion of a filter tow strip and a filter strand formed therefrom in a filter rod machine is carried out continuously. The production speed and the conveying speed of the filter tow strip and of the filter strand formed therefrom are limited by the maximum speed of the introduction device for objects to be introduced into the filter strand. This maximum speed is currently about 100 m / min. Thus, the production speed is significantly lower than in conventional filter strands, in which no capsules are inserted.

This is because the speed difference between the loading wheel and the capsules just before being picked up by the loading wheel is too large. Either not every capsule finds a receiving chamber in the loading wheel or a capsule is destroyed because it has not quite disappeared in the receiving chamber and is crushed on the storage wall.

Furthermore, during startup in the known systems, the filter rods equipped with capsules must be ejected until the filter strand and insert wheel are synchronized.

Based on this prior art is the present Invention the task of enabling the insertion of objects in a strand of material of the tobacco-processing industry at a higher speed than was previously possible, in addition, the objects should be treated more gently than before and in particular fewer objects than previously treated as committee.

This object is achieved by a Einlegerad a strand machine of the tobacco processing industry, in particular a filter rod machine which is rotatable about a central axis of rotation and is designed to immerse with its scope for inserting objects into a strand of material, in particular filter tow strand, the tobacco-processing industry in the submerged scope object receptacles are arranged with suction air and / or compressed air acted upon first Saugluftöffnungen, which is further developed in that the Einlegead on one side with respect to the axis of rotation rotationally symmetrical envelope wall whose outer diameter increases from a central object inlet to the object receptacles out, in a co-rotating guide body is disposed in an enclosed by the shell wall a co-rotating guide body whose outer contour is flat with the inner contour of the envelope wall, wherein the outer contour of the guide body has object channels, the an object-inlet-side object-receiving chamber lead to the object receptacles out.

The invention is based on the basic idea that the loading of the object receptacles on the circumference of the loading wheel is no longer realized by a separate device, but by a centrifuge-like device on Einlegerad itself. The envelope wall and the guide body rotate with the insert wheel, so that objects which are introduced into the object receiving chamber, the rotation of the envelope wall and thus the Einlegeads as such. In addition, a gentle sorting and entrainment of the objects and access to the object recordings is ensured by the formation of the object channels between the outer contour of the guide body and the enveloping wall. A transfer of objects from the outside to the object receivers of the Einlegerads, which is prone to error, no longer takes place.

The feeding of objects from the inside can be supported by gravity, compressed air or vacuum, ie suction air. In particular, the suction air can also act on the object recordings, if appropriate through the object channels, into the object receiving chamber. The objects can be brought into rotation during the feeding process by suitable measures, in such a way that they already run, for example, spirally on the inner wall of a feed tube. This can be done by a built-in the feed tube coil or by targeted air currents. The capsules are now brought to the central axis of the loading wheel, so no longer tangential as usual. The objects are treated gently, since the speeds in the input area of the capsules, ie near the center, are less than at the outer diameter of the insert wheel.

When the object receptacle is in an insertion position in the material strand, the objects in the object receptacles are dispensed into the filter strand by means of centrifugal force, possibly assisted by compressed air. The fact that no further transfer processes take place, the objects are also treated gently.

The enveloping wall is preferably conical. Also advantageous according to the invention, however, are also other forms of the enveloping wall, for example, two conical sections with different May have slopes or a curved cross-sectional shape having either a convex or concave curvature with respect to a conical shape, or mixtures of corresponding shapes.

Another measure, with which the objects can be gently brought into a rotation corresponding to the rotation of the insert, is advantageously given when in the object receiving chamber a, in particular in the same direction of rotation as the Einlegerad rotating scraper is arranged. This scraper can rotate at the same speed as the loading wheel or at a reduced speed and ensures that even those objects that are not directly on the inside of the shell wall, gently accelerated in the rotation with. He can also stand still. It should be prevented in each variant that the objects get exactly the same rotational speed as the Einlegerad, otherwise they no longer find the object channels.

Preferably, the diameter of the envelope wall is smaller than the diameter of the circumference of the inserter, which dips into the material strand. In this way, that part of the insert wheel which dips into the material strand, be carried out in the same manner as was given in the prior art. In this way, for example, an insert wheel according to the invention can be installed in an existing machine.

In an advantageous development, a contoured first object seat with a first suction air opening for an object in the object receptacle is formed at a point at which an object channel opens into an object receptacle. The contoured first object seat ensures that an object is held securely in the object seat and the Suction air is very efficiently brought to the object. Since the object seat is contoured and this contouring is adapted to the objects, air gaps, which lead to a Saugluftverlust, minimized. The object seats preferably have a complementary shape to the shape of the objects, for example, hollow spherical segment-shaped seats in spherical objects, oval in oval objects, etc.

Also, and optionally in addition, it is advantageously provided that an object channel has a contoured second object seat for an object at a location in front of an opening into an object receptacle, which has a second suction air opening. The second suction air opening is there to hold those objects in the respective object channel to be introduced next in the object holder. Since, at this point, the object channel may still have a slope in the radial direction, a contoured object seat is also provided here. Thus, the object can also be held in a material strand during the insertion of the object arranged in the object receptacle.

With the held object and the other objects are held in the object channel. Only after the first object has been inserted from the object receptacle into the material strand, the suction air at the second suction air opening is switched off and, if necessary, a pressure equalization is generated so that the second object can jump or slip out of the second object seat into the first object seat of the object receptacle. This movement is also supported by the pressure exerted by the other objects in the object channel under the influence of centrifugal force on the object in the second object seat. The shutdown of the suction air is only for a short time, so that at the time when the next object from the series of objects in the object channel nachges, the suction already switched on again is and the subsequent object is held there. Also, the retarded object is held in the first object seat by applying suction air in the first suction air opening in the object receptacle.

For controlling the application of suction air and compressed air, a non-co-rotating control flange is preferably provided, by means of which an admission of suction air and / or compressed air to the first Saugluftöffnung and / or the second Saugluftöffnung is controllable and / or a pressure compensation can be generated. This control flange preferably has a circumferential vacuum channel or suction air channel, which is contoured so that the first and / or second Saugluftöffnungen are at the corresponding points along the circumference with the suction air and at other locations with compressed air in communication or optionally with a pressure compensation opening.

The object underlying the invention is also achieved by a device for inserting objects into a strand of material, in particular filter strand, the tobacco processing industry, with a Einlegead invention described above, wherein an object supply is included, which is connected to the object inlet of Einlegerads.

In an advantageous embodiment, the object supply comprises an object store and a transport nozzle, by means of which objects from the object store can be conveyed through an object supply line into a collecting receptacle.

In a further advantageous development, it is provided that a filling level sensor is arranged on or in the object receiving chamber and / or a supply line to the object receiving chamber is, by means of a control device, a supply of objects to Einlegead in dependence on the level height is controllable.

The object underlying the invention is also achieved by an extrusion machine of the tobacco-processing industry, in particular filter rod machine, with a device according to the invention described above.

Finally, the object underlying the invention is achieved by a method for inserting objects into a material strand, in particular filter strand, the tobacco processing industry, wherein objects are conveyed from an object supply into an object receiving chamber of an inventive Einlegeads described above, which rotates about an axis of rotation , And the objects pass through an acting on them centrifugal force in object channels that open into object receptacles on the periphery of the insert, wherein in each case that object which is arranged in an object receptacle, so long with suction through the first Saugluftöffnung in the object holder is held until it is inserted into the material strand, wherein for insertion, the suction air is turned off at the first Saugluftöffnung.

In this method, during the insertion of the object from the object receptacle into the material strand, the object which is next arranged in the object channel opening into the object receptacle is further held in place with suction air at a second suction air opening, wherein after insertion the suction air at the first Suction air opening turned on again and the suction air is switched off at the second Saugluftöffnung, in particular with subsequent short-term pressure equalization to promote the next object from the object channel in the object holder and hold until loading there, with another Object moves to the second Saugluftöffnung in the object channel and is held there by means of reconnected suction air.

The features, advantages and properties mentioned with respect to the individual subject matter of the invention, that is to say the insert wheel, the device, the machine and the method, also apply without restriction to the respective other subject matter of the invention which relates to one another.

Further features of the invention will become apparent from the description of embodiments according to the invention together with the claims and the accompanying drawings. Embodiments of the invention may satisfy individual features or a combination of several features.

Fig. 1

eine schematische perspektive Darstellung eines erfindungsgemäßen Einlegerads,

Fig. 2

eine schematische Querschnittsdarstellung durch ein erfindungsgemäßes Einlegerad,

Fig. 3

eine schematische Detailquerschnittsdarstellung durch ein erfindungsgemäßes Einlegerad,

Fig. 4

eine schematische Darstellung einer erfindungsgemäßen Vorrichtung,

Fig. 5

eine schematische Darstellung einer weiteren erfindungsgemäßen Vorrichtung und

Fig. 6

eine perspektivische Detailansicht eines erfindungsgemäßen Einlegerads.

The invention will be described below without limiting the general inventive idea by means of embodiments with reference to the drawings, reference being expressly made to the drawings with respect to all in the text unspecified details of the invention. Show it:

Fig. 1

a schematic perspective view of a loader according to the invention,

Fig. 2

a schematic cross-sectional view through an inventive Einlegerad,

Fig. 3

a schematic detail cross-sectional view through an inventive insert wheel,

Fig. 4

a schematic representation of a device according to the invention,

Fig. 5

a schematic representation of another device according to the invention and

Fig. 6

a detailed perspective view of a Einlegeads invention.

In the drawings, the same or similar elements and / or parts are provided with the same reference numerals, so that apart from a new idea each.

In Fig. 1 a loading wheel 10 according to the invention is shown schematically in a perspective view with respect to some essential aspects. The insert wheel 10 has a substantially conical shape, wherein the base of the cone is widened and forms the actual insert wheel with the circumference 12, which dips into a strand of material and in the periphery 12 recessed object receptacles 14 has. The cone is dull on the opposite side. The blunt surface forms an opening, namely an object inlet 39, which opens into an object receiving chamber 38.

The cone shape is essentially formed by an enveloping wall 20, which in Fig. 1 apparently semi-transparent, so that details of the interior of the loading wheel 10 can be displayed.

The insert wheel 10 rotates about a central axis of rotation 11, which is shown in dashed lines. In the interior of the enveloping wall 20, a guide body 22 is arranged, which on the one hand delimits the object receiving chamber 38 and on the other hand adjoins the base surface of the loading wheel 10 with the circumference 12 and the object receptacles 14. The guide body 22 has an outer surface which is also conical and flush with the inner surface of the shell wall 20.

In the outer surface of the guide body 22, a plurality of object channels 16 are inserted, which are closed by the enveloping wall 20 so that form object channels 16. In an object channel 16, a filling with objects 4 as object row 6 is shown. The cross-section of the object channels 16 is slightly larger than the objects 4, so that the objects 4 in the object channels are movable and not jammed.

The object channels 16 each begin at the edge of the object-receiving chamber 38, in the embodiment according to FIG Fig. 1 with a laterally raised edge, so that the objects 4 in the object receiving chamber 38 are gently caught in the entrances 18 of the object channels 16 and introduced into the object channels 16. The object channels 16 each open into an object receptacle 14 in the circumference 12 of the loading wheel 10. These are the appropriate format spacing spaced accordingly.

The conveyance of the objects in the object channels 16 takes place essentially by the centrifugal force which pushes the objects in the object channels 16 outward during the rotation of the loading wheel 10, that is to say according to the widened diameter of the enveloping wall 20, thus up to the object receptacles 14. This can be assisted by the application of compressed air, for example, in the object receiving chamber 38 or by the suction air acting in the region of the object receptacles 14.

In the embodiment according to Fig. 1 are in the region of the confluence of the object channels 16 in the object receptacles 14 two object seats, namely a first object seat 24 and a second object seat 28, shown. The first object seat 24 is located in the extension of the bore of the receptacle 14, the second object seat 28 is still in the object channel 16, but adjacent to the first object seat 24. The two object seats 24, 28 serve each to hold an object 4 with suction, as long as the rotation of the insert 10 has not yet led to the circumference 12 of the insert 10 is immersed in this position in a strand of material 2. The object seats 24, 28 are complementary in shape to the objects 4, which are spherical in the embodiment.

As soon as this has been done at a loading position, not shown, suction air is switched off at the first object seat 24 and optionally compressed air is switched on in order to convey an object 4 from the first object seat 24 into the material strand 2. At this time, an object 4 is still held in the second object seat 28. After leaving the loading position, there is thus an object 4 in the second object seat 28 and no object in the first object seat 24. The suction air at the second object seat 28 is now switched off, whereby the next following object 4 passes from the second object seat 28 to the first object seat 24. At this time, suction air is already switched on again at the first object seat 24, so that the object 4 advancing out of the second object seat 28 can not leave the object receptacle 14 and the first object seat 24. At the same time, another object 4 moves from the object channel 16 into the second object seat 28.

In Fig. 2 is an inventive insert wheel 10 is shown schematically with more details in cross section. It can be seen that the guide body 22 is mounted on a drive shaft 46 and rotates with this. The drive shaft 46 is mounted by means of a ball bearing 44 in a stationary control flange 42. The control flange 42 also adjoins a supply for suction air 32 and a supply of compressed air 34, which are formed as cavities and are connected to compressed air or Saugluftquellen, not shown.

The guide body 22 is enveloped by an enveloping wall 20 which rotates together with the guide body 22. Two object rows 6 with objects 4 in two object channels 16 are shown, which are respectively formed between the guide body 22 and the enveloping wall 20. These object channels 16 lead from an object receiving chamber 38 to the object receptacles 14 in the circumference 12 of the loading wheel 10.

The direction of rotation 13 of the drive shaft 46 and associated therewith the insert 10 is by a curved arrow on the left side of Fig. 2 shown.

At its bottom at the bottom of the Fig. 2 penetrates the periphery 12 of the insert 10 in a material strand 2, in particular a filter strand, so that objects 4 are inserted from the object receptacles 14 in the material strand 2. Also shown are a first Saugluftöffnung 26 and a second Saugluftöffnung 30, the application of suction air 32 and compressed air 34 to the corresponding in Fig. 1 shown first and second object seats 24, 28 control.

The object receiving chamber 38 is connected to a loading chute 40 through which the object receiving chamber 38 can be filled with objects 4. In order to convey the objects 4 into the object channels 16, a rotatable scraper 36 is provided, which rotates in the same direction of rotation as the loading wheel 10 itself, but optionally at a lower angular velocity. In Fig. 2 the scraper 36 is rotatably with the guide body 22 connected. The objects 4 are here treated gently, since the peripheral speed in the area of the object receiving chamber 38 is significantly lower due to the smaller diameter than the outer periphery 12 of the insert 10.

In Fig. 3 are details from the insert wheel 10 according to Fig. 2 shown schematically. Clearly visible in this case, the object row 6 of individual objects 4 within the object channel 16 between the guide body 22 and the enveloping wall 20, the objects 4 by the centrifugal force or centrifugal force by the rotation of the insert 10 to the inner wall of the envelope wall 20 and the outer wall of the object channel 16 are pressed. In the course of each revolution, the objects 4 of the object row 6 pass first to the second object seat 28, which is charged with suction air by means of a second suction air opening 30, so that the objects 4 are held there. By keeping the corresponding object 4 in the second object seat 28 with suction air, moreover, the object row 6 is held, so that the objects 4 of the object row 6 can not advance. At the same time, another object 4 in the first object seat 24 is held by suction air through a first suction air opening 26. The object 4 in the first object seat 24 is referred to below as einzulegendes object 8, that in the second object seat 28 as the next object. 9

In the in Fig. 3 illustrated situation, the first suction air opening 26 is now connected to the volume for compressed air 34, so that at this point the einzulegende object 8 is blown in the first object seat 24 in a material strand 2, not shown. After the blowing out, the first object seat 24 is thus left, while the next following object 9 of the object row 6 now remains in the second object seat 28 until the suction air 32 at the second object seat 28 is briefly switched off and the objects 4, 9 of the object row 6 advance by one position at a time.

In Fig. 4 a first embodiment of a device 50 according to the invention with a loading wheel 10 according to the invention is shown. The details of the loading wheel 10 are the same as in FIGS Fig. 1 to 3 , so that a new idea is ignored. The object receiving chamber 38 is connected to an object hopper 54 which is connected to an object storage 52 which can be filled from above. By gravity thus reach objects 4 from the object memory 52 through the object hopper 54 into the object receiving chamber 38. The object hopper 54 also corresponds to the loading shaft 40 from Fig. 2 ,

In Fig. 5 an alternative embodiment of a device according to the invention is shown, wherein the insert wheel 10 itself does not differ from those of the Fig. 1 to 4 different. The loading of objects 4 takes place in the device 51 by an object memory 52, wherein objects 4 are removed by means of a transport nozzle 53 and transported by an object supply line 57 to the collecting container 55, from which they pass through an object hopper 54 into the object receiving chamber 38 of the loading wheel 10 reach.

Also visible is another variant of a scraper 36. This scraper 36 has in the embodiment according to Fig. 5 a separate drive with its own drive shaft 37 and therefore can rotate at a different speed with respect to the loading wheel 10.

At the object hopper 54, a level sensor 56 is arranged, which monitors the level, so that falls below a predetermined Level with the transport nozzle 53 more objects 4 can be removed from the object memory 52 and transported to the collecting container 55.

In Fig. 6 is a schematic perspective view of details of a loading wheel 10 according to the invention shown, with the focus here is directed to a control flange 42. In this case, the enveloping wall 20 and the guide body 22 have been omitted. An unillustrated object channel 16 is indicated by a single row of objects 6 which moves relative to the control flange 42 in the direction of the arrow, ie the direction of rotation 13.

The control flange 42 has perspectively below the einzulegenden object 8 and the next object 9 respectively structures with which suction air or compressed air to the objects 8, 9 can be performed. The guide body 22, not shown, has the first object seat 24 and the first suction air opening 26 and the second object seat 28 and the second suction air opening 30 at the point where the two objects 8, 9 are located. The first suction air opening 26 and the second suction air opening 30 make a connection to the inside, so that the inputs of Saugluftöffnungen 26, 30 in the course of rotation of the guide body 22 and the enveloping wall 20 via the control flange 42 with the dashed lines and the reference numeral 42a, 42b described tracks describe.

In the in Fig. 6 shown position is the einzulegende object 8, so the first object of the object row 6, with the first Saugluftöffnung, not shown, just above a compressed air outlet 43b, which in accordance with a supply chamber for compressed air 34 Fig. 2 and 3 communicates. This is thus the insertion position, since the first Saugluftöffnung 26, not shown, aligned with the compressed air output 43b and compressed air blows the object 8 in a material strand 2, not shown. The next object 9 of the object row 6 is located with its second object seat 28 and the second suction air opening 30 over a part of the circulating vacuum channel 43 a and is thus held in its second object seat 28 while the object 8 to be introduced is blown out. The vacuum channel 43a is in communication with the in Fig. 2 illustrated supply chamber for suction air 32nd

Shortly before, ie counter to the direction of rotation 13, was still at both objects 8, 9 suction air, so that both were still held in their respective object seats 24, 28.

Continuing from the illustrated position in the direction of rotation 13, suction air is again applied to the position 42a of the first suction air opening 26 as well. Shortly afterwards, at the position 42b of the second suction air opening 30, suction air is switched off, in which case the vacuum duct 43a ends. For a short time, the second suction air opening 30, not shown, is completely closed by the illustrated wall. At this point, the object 9 is still held in the object seat 28 with good fit accuracy between object 9 and object seat 28, since there is still a negative pressure in the Saugluftöffnung 30. After a short further rotation, however, the second suction air opening 30 arrives at a pressure compensation opening 43c, at which the second suction air opening 30 is in communication with the outside air. As a result, the next object 9 is no longer held in the second object seat 28, but continues to slide toward the first object seat 24, on which suction air from the circulating vacuum channel 43a is already in contact. There, the object is held, which is now the next object to be inserted 8.

The further objects of the object row 6 slip accordingly and another object 4 slips onto the second object seat 28 and is then again held there next as object 9 with suction air from the vacuum duct 43a. In the further course of the circumference of the control flange 42, the vacuum channel 43a is each wide enough to cover the positions 42a, 42b of the first suction air opening 26 and the second suction air opening 30. The only exception to this is in Fig. 6 shown and is located on and in the direction of rotation 13 just past the loading position.

All mentioned features, including the drawings alone to be taken as well as individual features that are disclosed in combination with other features are considered alone and in combination as essential to the invention. Embodiments of the invention may be accomplished by individual features or a combination of several features.

LIST OF REFERENCE NUMBERS

2

material strand

4

object

6

object number

8th

object to be inserted

9

next object

10

insertion wheel

11

axis of rotation

12

scope

13

direction of rotation

14

object recording

16

object channel

18

entrance

20

shell wall

22

guide body

24

first object seat

26

first suction air opening

28

second object seat

30

second suction air opening

32

suction

34

compressed air

36

scraper

37

drive shaft

38

Object receiving chamber

39

object inlet

40

charging shaft

42

control flange

42a

Position first suction air opening

42b

Position second suction air opening

43a

vacuum channel

43b

Compressed air outlet

43c

Pressure equalization port

44

ball-bearing

46

drive shaft

50

contraption

51

contraption

52

ObjectStore

53

transport jet

54

Objektfüllschacht

55

receptacle

56

level sensor

57

Object supply line

Claims (13)

Insertion wheel (10) of a stranding machine of the tobacco processing industry, in particular a filter rod machine which is rotatable about a central axis of rotation (11) and is formed, with its periphery (12) for inserting objects (4) into a strand of material (2), in particular Filter tow strand to immerse the tobacco processing industry, wherein in the submerged scope (12) object receptacles (14) with suction air (32) and / or compressed air (34) acted upon first suction air openings (26) are arranged, characterized in that the insert wheel (10) on one side with respect to the axis of rotation (11) rotationally symmetrical envelope wall (20) whose outer diameter increases from a central object inlet (39) to the object receptacles (14), wherein in one of the envelope wall (20) enclosed interior a co-rotating guide body (22) is arranged, whose outer contour is flat with the inner contour of the envelope wall (20), wherein the outer contour of the guide body (22) object channels (16), from an object-inlet side object receiving chamber (38) to the object receptacles (14) to lead. Insertion wheel (10) according to claim 1, characterized in that the envelope wall (20) is conical. Insertion wheel (10) according to claim 1 or 2, characterized in that in the object receiving chamber (38), in particular in the same direction of rotation as the insert wheel (10) rotating scraper (36) is arranged. Insertion wheel (10) according to one of claims 1 to 3, characterized in that the diameter of the envelope wall (20) is smaller than the diameter of the circumference (12) of the loading wheel (10), which dips into the material strand (2). Insertion wheel (10) according to one of claims 1 to 4, characterized in that at a position at which an object channel (16) opens into an object receptacle (14), a contoured first object seat (24) with a first suction air opening (26) for an object (4, 8) is formed in the object receptacle (14). Insertion wheel (10) according to one of claims 1 to 5, characterized in that an object channel (16) at a position in front of an opening into an object receptacle (14) has a contoured second object seat (28) for an object (4, 9), having a second suction air opening (30). Insertion wheel (10) according to claim 5 or 6, characterized in that a non-co-rotating control flange (42) is provided, by means of which an admission of the first Saugluftöffnung (26) and / or the second Saugluftöffnung (30) with suction air (32) and / or compressed air (34) is controllable and / or a pressure compensation can be generated. Device (50) for inserting objects (4) into a material strand (2), in particular filter strand, of the tobacco processing industry, with a loading wheel (10) according to one of claims 1 to 7, characterized in that an object supply (52, 53 , 54, 55) connected to the object inlet (39) of the loading wheel (10). Device (50) according to claim 8, characterized in that the object supply (52, 53, 54, 55) comprises an object memory (52) and a transport nozzle (53), by means of the objects (4) from the object memory (52) by a Object supply line (57) in a collecting container (55) are conveyed. Device (50) according to claim 8 or 9, characterized in that a filling level sensor (56) is arranged on or in the object receiving chamber (38) and / or a feed line (52, 54, 55) to the object receiving chamber (38), wherein by means of a Control device, a supply of objects (4) to the insert wheel (10) in dependence on the level height is controllable. Extrusion machine of the tobacco-processing industry, in particular filter rod machine, with a device (50) according to one of claims 8 to 10. Method for inserting objects (4) into a material strand (2), in particular filter rod, of the tobacco processing industry, wherein objects (4) from an object supply (52, 53, 54, 55) are formed in an object receiving chamber (38) of a loading pad (10) according to any one of claims 1 to 7 is promoted, which rotates about a rotation axis (11), and the objects (4) by acting on them centrifugal force in object channels (16), which open in object receptacles (14) on the circumference (12) of the loading wheel (10) , wherein in each case that object (8), which is arranged in an object receptacle (14), so long with suction air (32) through the first suction air opening (26) in the object receptacle (14) is held until it in the material strand (2) is inserted, wherein for insertion, the suction air (32) at the first suction air opening (26) is turned off. A method according to claim 12, characterized in that during the insertion of the object (8) from the object receptacle (14) in the strand of material (2) that object (9) in the object in the receptacle (14) opening object channel (16) as Next, with suction air (32) at a second Saugluftöffnung (30) is further held, wherein after inserting the suction air (32) at the first Saugluftöffnung (26) turned on again and the suction air at the second Saugluftöffnung (30) is turned off , in particular with subsequent brief pressure equalization, in order to convey the next object (9) out of the object channel (16) into the object receptacle (14) and to hold it there until insertion, whereby a further object (4) to the second suction air opening (30) in Object channel (16) moves up and is held there by means of reconnected suction air.

Images