DE102017205661A1 - An extruder final molding apparatus for molding extruded rubber blends into a total rubber member and extruder-molding system comprising the extruder final molding apparatus and uses thereof - Google Patents

Abstract

The invention relates to an extruder end molding apparatus for molding extruded rubber mixtures into an overall rubber element, characterized in that the extruder final molding device comprises a first flow channel provided for disposing a first rubber component, a second flow channel provided for disposing a second rubber component, and a second flow channel Arrangement of a third rubber component provided third flow channel, the first flow channel, the second flow channel and the third flow channel each having an inlet opening on a first side of the extruder-Endform device, and the first flow channel and the second flow channel open into the third flow channel. The invention also relates to an extruder-molding system and the use of the extruder final molding apparatus as well as the use of the extruder-molding system.

Description

The invention relates to an extruder end molding apparatus for molding extruded rubber blends into an overall rubber member. The invention also relates to an extruder-forming system comprising the extruder-endforming apparatus and a use of the extruder-endforming apparatus as well as a use of the extruder-forming system.

In the rubber industry, rubber blends are extruded in extruders and then molded in an extruder-mold system into a total rubber element having a predetermined profile. Frequently, the extruder-molding system comprises a preforming device and a final molding device.

Extruder molding systems are known in the art. For example, in US 4683095 A discloses an extruder apparatus wherein the extruder apparatus has a "pre-die" and a "final die".

Prior art extruder die-forming devices often have only the function of final molding the extruded rubber blends, thus giving the resulting overall rubber element a predetermined profile. In doing so, an extruder end-molding apparatus known in the art has to be used in conjunction with complicated extruder preforming apparatuses, the latter having the task of delivering the various extruded rubber blends from the extruders to a predetermined position on one side of the extruder final molding apparatus respectively. The extruder preforming device must be adapted exactly to the simultaneously used extruder final molding device, since for a particular profile or composition of an overall rubber element, both devices must be matched to one another and to the extrusion line used in the specific case , As a result, for each individual extrusion line, various custom combinations of extruder preform devices and extruder endform devices must be made. When changing the profile or composition of the overall rubber element, therefore, it is necessary to change the extruder preform device and the extruder end mold device. In addition, the maintenance of the various extruder preform devices and extruder endform devices is so time consuming.

The invention is therefore based on the object to provide an improved extruder Endform apparatus and an improved extruder-molding system which or which in particular a simpler maintenance or a simplified replacement when switching the extrusion line to a new profile of a total rubber element compared to known in the art solutions.

• - die Extruder-Endform-Vorrichtung zumindest
  • - einen zur Anordnung einer ersten Kautschukkomponente vorgesehenen ersten Fließkanal,
  • - einen zur Anordnung einer zweiten Kautschukkomponente vorgesehenen zweiten Fließkanal und
  • - einen zur Anordnung einer dritten Kautschukkomponente vorgesehenen dritten Fließkanal
  aufweist, wobei
  • - der erste Fließkanal, der zweite Fließkanal und der dritte Fließkanal jeweils eine Eintrittsöffnung auf einer ersten Seite der Extruder-Endform-Vorrichtung aufweisen,

und

• - der erste Fließkanal und der zweite Fließkanal in den dritten Fließkanal münden.

This object is achieved according to the invention in relation to an extruder-endform device in that

• - The extruder final molding device at least
  • a first flow channel provided for the arrangement of a first rubber component,
  • - A provided for the arrangement of a second rubber component second flow channel and
  • a third flow channel provided for arranging a third rubber component
  having,
  • the first flow channel, the second flow channel and the third flow channel each have an inlet opening on a first side of the extruder final molding device,

and

• - The first flow channel and the second flow channel open into the third flow channel.

In an extruder end-molding apparatus known from the prior art, the extruded rubber blends are often formed into a total rubber member only by a single channel. In contrast, an extruder end molding apparatus according to the invention has a plurality of flow channels each having an entrance opening on a first side of the extruder end molding apparatus. By means of these flow channels, the various rubber components in the extruder final molding apparatus are arranged according to the invention, and the position of the inlet opening of each channel on the first side of the extruder final molding apparatus according to the invention can vary.

It is inventively provided that the different flow channels (here the first and second flow channel) into a main flow channel (here the third flow channel) open, the main flow channel then leads up to its outlet opening on the second side of the extruder Endform device according to the invention , The outlet opening in this case has a shape which causes the resulting total rubber element has a predetermined profile.

Furthermore, the mouths of the various flow channels (here the first and second flow channel) in the main flow channel (here the third flow channel) of an extruder end molding device according to the invention arranged such that the individual rubber components occupy the desired position in the resulting total rubber element.

By being able to vary the positions of the inlet openings on the first side of an extruder end molding apparatus according to the invention as already mentioned, it is possible to easily transfer the extruded rubber mixtures from the extruders to an extruder end molding apparatus according to the invention. In this way, an extruder preforming device would only have to direct the extruded rubber blends from the extruders to the inlets of an extruder endforming device of the present invention without placing the various extruded rubber blends in a particular position.

With the aid of an extruder end-molding device according to the invention, it would therefore also be possible to use, instead of known extruder preforming device, a universally applicable extruder-guiding device (more on this below) which can be used in conjunction with different extruder-endforming devices , In this case, it would no longer be necessary to change the extruder-end-molding device and at the same time the extruder-preform device when changing the profile or the composition of the overall rubber element, but merely to change the extruder-endform device according to the invention. This reduces the time required and shortens profit-reducing service life of the extrusion lines in the above-described change.

This would also reduce the maintenance and purchase of extruder preform devices and reduce the long term cost of acquiring extruder preform devices.

With the aid of the extruder final molding device according to the invention, it would even be possible to dispense with the use of extruder preform devices in future extrusion lines, whereby further production costs can be saved.

Each of the flow channels mentioned above and below could be a main flow channel. Preferably, only one of the flow channels is a main flow channel. A main flow channel has an exit opening on a side opposite the first side, i. the second side of the extruder final molding apparatus of the invention. In the context of the present invention, however, the third flow channel is preferably the main flow channel.

The extruder-end molding device according to the invention is preferably approximately cuboid and particularly preferably has six sides with side surfaces which are at right angles to each other. It is preferably made of metal or of thermosets, preferably of metal. The extruder end molding device according to the invention may consist of several parts or consist of a single casting.

In the context of the present invention, the overall rubber element is preferably an endless strip for producing a multi-component profile, particularly preferably an endless strip for producing a tread or an endless strip for producing a multi-component side wall, very particularly preferably an endless strip for producing a tread.

In the context of the present invention, the inlet opening of a flow channel is the end of the flow channel in the extruder final molding apparatus according to the invention, which is located in the first side of the extruder final molding apparatus according to the invention. The first side of the extruder final molding apparatus according to the invention is the side which first pass the extruded rubber mixtures in the extrusion direction before passing through the second side of the extruder final molding apparatus according to the invention. The first and second sides of the extruder end molding apparatus of the present invention are opposite sides in the present invention.

The extrusion direction is the flow direction of the extruded rubber mixtures in the extruder. The direction of flow is from the inlet of the main flow channel of the extruder die to the exit port of the main flow channel of the extruder die. The inlet and outlet openings are defined by the flow direction of the extruded rubber mixtures.

In the context of the present invention, a first flow channel opens into another flow channel such that the outlet opening of the first flow channel is positioned on a wall of the other flow channel such that the rubber component from the first flow channel with the rubber component from the other flow channel is provided Way connects.

It is preferred that the extruder final molding apparatus additionally comprises at least one fourth flow channel provided for disposing a fourth rubber component, the fourth flow channel having an inlet opening on the first side of the extruder end molding apparatus and the fourth flow channel opening into the third flow channel, wherein the inlet opening of the fourth flow channel is preferably spatially above the inlet opening of the third flow channel, that is further away from the ground than the inlet opening of the third flow channel.

In particular, with four rubber components to be processed into a total rubber element, extremely difficult to manufacture and therefore expensive extruder preforming devices have been necessary because all four rubber components precisely match the intended position at the very narrow inlet of a prior art extruder die known in the art had to be arranged. This is no longer necessary with an extruder end molding device according to the invention. The effect described above applies in particular to total rubber elements in the form of endless strips for treads of a vehicle tire.

Preferably, an extruder end-molding apparatus as described above or as described above as preferred, characterized in that the inlet opening of the third flow channel is spatially between the inlet opening of the first flow channel and the inlet opening of the second flow channel. This means that the geometric center of the third flow channel lies between the vertical plane passing through the geometric center of the first flow channel and the vertical plane passing through the geometric center of the second flow channel and / or between the horizontal plane passing through the geometric center of the first flow channel and the horizontal plane passing through the geometric center of the second flow channel.

Preferred is an extruder final molding apparatus as described above or as described above as being preferred which additionally
a fourth flow channel provided for disposing a fourth rubber component
and
a fifth flow passage provided for disposing a fifth rubber component
having,
the fourth flow channel and the fifth flow channel each have an inlet opening on the first side of the extruder final molding device,
and
the fourth flow channel and the fifth flow channel open into the third flow channel.

The use of an extruder-endform device according to the invention is particularly advantageous in the production of total rubber elements having five or more than five rubber components, since the five or more than five rubber components are no longer precise to the intended position at a very narrow inlet opening of a standstill the art known extruder-Endform device must be arranged.

• - die Eintrittsöffnung des dritten Fließkanals räumlich zwischen der Eintrittsöffnung des ersten Fließkanals und der Eintrittsöffnung des zweiten Fließkanal liegt,
• - die Eintrittsöffnung des vierten Fließkanals räumlich oberhalb der
• Eintrittsöffnung des dritten Fließkanals liegt und
• - die Eintrittsöffnung des fünften Fließkanals räumlich oberhalb der Eintrittsöffnung des dritten Fließkanals liegt.

Particularly preferred is an extruder-end molding apparatus having a fourth flow channel and a fifth flow channel as described above as being preferable when

• the inlet opening of the third flow channel lies spatially between the inlet opening of the first flow channel and the inlet opening of the second flow channel,
• - The inlet opening of the fourth flow channel spatially above the
• Inlet opening of the third flow channel is and
• - The inlet opening of the fifth flow channel is spatially above the inlet opening of the third flow channel.

This arrangement additionally facilitates the transfer of five rubber components which are to be formed into a five-component tread of a vehicle tire, since the positions of the inlet openings of the flow channels already approximately correspond to the arrangement of the five rubber components in the resulting endless strip to produce a tread and thus the need for a Extruder preform device is further reduced.

The term "spatially intermediate" in the aspect described above has the same meaning as explained above.

The term "spatially above" in the context of the invention means that the horizontal plane of the third flow channel during the inventive use of an extruder-Endform device has a closer distance to the ground than the horizontal plane, which through the geometric center of the fourth and fifth Flow channel runs.

It is understood that additional flow channels for further components can be incorporated into an extruder final molding apparatus according to the invention in order to increase the number of components in the overall rubber element or to introduce one and the same rubber mixture to different positions in the overall rubber element. The number of flow channels is therefore not limited to the top.

Preferred is an extruder final molding apparatus as described above or as described above as being preferred characterized in that the extruder endforming device additionally comprises a diverting flow channel intended to provide an electrically conductive rubber component, the diverting flow channel having an inlet opening on the first side of the extruder endforming device and the diverting flow channel into the third flow channel empties.

The expression "electrically conductive" in the context of the present invention means that the rubber component has an electrical resistance of less than 10 ⁷ ohm.cm, more preferably less than 10 ⁵ ohm.cm, most preferably less than 10 ³ ohm. cm. The electrical resistance was determined according to the standard DIN EN 62631-3-2: 2016-10.

The inlet opening of the discharge flow channel on the first side of the extruder final molding device is preferably located between the inlet opening of the first flow channel and the inlet opening of the second flow channel.

Especially with silica-containing vehicle tires, the incorporation of an electrically conductive rubber component makes sense, since silica-containing vehicle tires have a very high electrical resistance. The electrically conductive rubber component is preferably produced by a riser nozzle within the third flow channel, whereby the electrically conductive rubber component completely penetrates the third rubber component and divides into at least two regions. As a result, the introduction of an electrically conductive rubber component into the overall rubber element along the extrusion direction is made possible with the help of the riser nozzle.

In all aspects and embodiments of the present invention described above, it is always preferred that the length of the extruder die in the extrusion direction be in the range of 5 to 200 mm, preferably in the range of 10 to 150 mm, more preferably in the range of 15 up to 100 mm.

Due to the above described embodiment of an extruder-endform device according to the invention, it is possible to reduce the spatial dimensions of an extruder-endforming device according to the invention as described above and thus to simplify the change of such extruder-endforming devices and to permanently reduce their initial costs.

In the context of the previous invention, the length of the extruder final molding apparatus according to the invention is the maximum distance between the first of the extruder final molding apparatus and the opposite second side of the extruder final molding apparatus.

• - einen ersten Fließkanal mit einer Austrittsöffnung auf der ersten Seite der Extruder- Führungsvorrichtung,
• - einen zweiten Fließkanal mit einer Austrittsöffnung auf der ersten Seite der Extruder- Führungsvorrichtung und
• - einen dritten Fließkanal mit einer Austrittsöffnung auf der ersten Seite der Extruder-Führungsvorrichtung;

dadurch gekennzeichnet, dass
der Abstand zwischen der Austrittsöffnung des ersten Fließkanals auf der ersten Seite der Extruder-Führungsvorrichtung und der Austrittsöffnung des dritten Fließkanals auf der ersten Seite der Extruder-Führungsvorrichtung mindestens einem 1 cm entspricht
und
der Abstand zwischen der Austrittsöffnung des zweiten Fließkanals auf der ersten Seite der Extruder-Führungsvorrichtung und der Austrittsöffnung des dritten Fließkanals auf der ersten Seite der Extruder-Führungsvorrichtung mindestens einem 1 cm entspricht.The invention also relates to an extruder-forming system comprising an extruder-endforming device as described above or as described above as preferred and at least one extruder-guiding device having a first side, characterized in that the extruder-guiding device in the direction of an extrusion movement spatially in front of the extruder final molding apparatus, and the extruder guide apparatus at least comprises:

• a first flow channel with an outlet opening on the first side of the extruder guiding device,
• - A second flow channel with an outlet opening on the first side of the extruder guide device and
• a third flow channel having an exit opening on the first side of the extruder guide device;

characterized in that
the distance between the outlet opening of the first flow channel on the first side of the extruder-guiding device and the outlet opening of the third flow channel on the first side of the extruder-guiding device corresponds to at least one 1 cm
and
the distance between the outlet opening of the second flow channel on the first side of the extruder-guiding device and the outlet opening of the third flow channel on the first side of the extruder-guiding device corresponds to at least one 1 cm.

The above-described advantageous aspects of an extruder-endforming apparatus according to the invention also apply to all aspects of an extruder-endforming system described below and the extruder-endforming system according to the invention discussed below apply correspondingly to all aspects of an extruder-endforming apparatus according to the invention.

In the context of the present invention, the first side of an extruder-guiding device described above is the side facing the extruder-end-molding device. Thus, the second side of the extruder-guide device is the side which first passes the extruded rubber blends in the extrusion direction before passing the first side of the extruder-guide device. The first side of the extruder-endforming device and the first side of the extruder-guiding device are therefore in an inventive Extruder-Form-System in direct contact (see also in 5 Reference numeral 37, first side of the extruder-guiding device, and reference numeral 36, first side of the extruder-end molding device).

As already explained above, it is possible to arrange the position of the various inlet openings of the flow channels in a very wide variety of ways in an extruder end molding device according to the invention. In contrast to the extruder preforming apparatus known in the art, the extruder-guiding apparatus described above merely has the function of guiding the extruded rubber blends to the extruder-endforming apparatus, thereby no longer fulfilling any forming functions.

It is therefore provided according to the invention that various extruder end molding devices according to the invention can be used in conjunction with one and the same extruder guiding device. As a result of the use of a single universally applicable extruder-guiding device as described above, only one change of the extruder-endform device is therefore necessary to direct the production to another profile of the produced overall rubber element corresponding to the selected extruder-endforming device.

Since the various extruded rubber blends due to the extruder inherent arrangement at different positions in the extruder-guide device described above and the extruder-guiding device described above to ensure a universal use as possible, intended for each extruded rubber mixture outlet openings on the first side of the Extruder guiding device described above have a certain minimum distance from each other. This minimum distance of the outlet openings on the first side of the extruder-guiding device ensures that it is possible to easily arrange the individual rubber components at different positions within the extruder-end-molding device according to the invention. By contrast, extruder preform devices known from the prior art do not have this minimum distance of the outlet openings on the first side of the extruder preform devices. All exit ports in known extruder preform devices are closely spaced, usually in the middle of the first side of the already known extruder preform devices. As a result, it is difficult to guide the various rubber components thereafter to any positions within the extruder Endform device according to the invention. This applies in particular to the case when a rubber component in the extruder final molding device is to be placed rather further outwards in the profile of the overall rubber element, ie not in the center.

The minimum distance between the outlet opening of the first and second flow channel (this corresponds for example to one of the wing component flow channels) on the first side of the extruder guide device and the outlet opening of the third flow channel (this corresponds eg to the main component flow channel) on the first side of the extruder Guiding device is as described above at least one 1 cm, but preferably at least 2 cm, more preferably at least 3 cm. The minimum distance in the context of the present invention is the smallest possible measurable distance between the edge of the outlet opening of the second flow channel on the first side of the extruder guide device and the edge of the outlet opening of the third flow channel on the first side of the extruder guide device or the smallest possible measurable distance between the edge of the outlet opening of the first flow channel on the first side of the extruder-guiding device and the edge of the outlet opening of the third flow channel on the first side of the extruder-guiding device.

The invention also relates to a use of an extruder-mold system as described above or as described above as preferred and the use of a device as described above or as described above as preferred for molding extruded rubber blends into an overall rubber element.

The advantageous aspects of an extruder final molding apparatus and an extruder molding system according to the invention described above also apply to all aspects of using an extruder molding system according to the invention or to using an extruder final molding apparatus according to the invention for molding extruded rubber blends an overall rubber element. The advantageous aspects of an inventive extruder-molding system and an extruder-end molding apparatus according to the invention discussed below apply correspondingly to all aspects of a use according to the invention of an extruder-molding system according to the invention or a use of an extruder-end molding device according to the invention for molding extruded rubber mixtures to a total rubber element.

list of figures

• 1 : View of a schematically illustrated first side of an assembled extruder-end molding device according to the invention, which consists of an upper portion and a lower portion
• 2 : Plan view of the inner surfaces between the upper portion and the lower portion of an extruder-end molding apparatus according to the invention
• 3 : View of a schematically illustrated first side of an assembled extruder-endform device according to the invention
• 4 : View of a schematically illustrated first side of an assembled extruder-endform device according to the invention
• 5 3 shows a cross-sectional view through a schematically illustrated extruder-molding system according to the invention, the cross-section being along the extrusion direction,
• 6 : Schematic representation of a transverse profile of a total rubber element
• 7 : Schematic representation of a transverse profile of a total rubber element

Other features, advantages and details to which the invention is not limited in scope, will now be with reference to FIGS 1 to 7 described in more detail.

1 shows a schematic representation of a side view of an extruder Endform device according to the invention 1 in a first embodiment, wherein the inlet opening 13 a discharge flow channel, a riser nozzle 35 , the entrance opening 29 of the second flow channel, the inlet opening 28 the first flow channel and the inlet opening 32 of the third flow channel can be seen. It can be seen that the extruder end molding apparatus according to the invention consists of an upper portion and a lower portion recognizable by the line extending in FIG 1 extends centrally from the left edge to the right edge of the extruder Endform device according to the invention.

2 shows a schematic representation of the extruder Endform device according to the invention 1 in the embodiment as in 1 shown, wherein the upper and the lower portion are unfolded, so that the course of the first flow channel 2 , the second flow channel 3 and the third flow channel. It is shown that the outlet opening 30 of the first flow channel 2 and the exit opening 31 of the second flow channel 3 on the wall of the third flow channel 6 and thus the first flow channel 2 as well as the second flow channel 3 in the third flow channel 3 lead. The climbing nozzle 35 for introducing an electrically conductive rubber component into the overall rubber member is also shown

3 shows a schematic representation of the side view of an extruder Endform device according to the invention 1 in another embodiment, wherein the first side of the extruder die is shown. You can see the entrance opening 28 of the first flow channel, the inlet opening 29 the second flow channel and the inlet opening 32 the third flow channel, where the geometric center 16 the inlet opening of the third flow channel in a horizontal plane 12 located. The horizontal plane 12 is located between the inlet opening 29 the second flow channel and the inlet opening 28 of the first flow channel. The geometric center 16 the entrance opening 32 of the third flow channel is between the vertical plane 14 the first flow channel and the vertical plane 21 of the second flow channel, with the respective vertical planes 14 . 21 through the geometric center of the run first and second flow channel. In the 3 For example, the embodiment shown corresponds to an extruder end molding apparatus for molding extruded rubber blends into a multi-component sidewall of a vehicle tire. Preferably, the in 3 illustrated extruder Endform device according to the invention combined with an extruder-guiding device described above so that an inventive extruder-molding system is formed. More preferably, the exit openings on the first side of an extruder-guide device described above are arranged in this extruder-molding system so that the rubber components readily fit into the corresponding inlets on the first side of the extruder-endform apparatus as in FIG 3 can occur represented.

4 1 shows a schematic representation of the side view of an extruder end molding device according to the invention ( 1 ) in a further embodiment, wherein the first side of the extruder die is shown. You can see the entrance opening 5 of the fourth flow channel, the inlet opening 13 the discharge flow channel, the inlet opening 28 of the first flow channel, the inlet opening 29 the second flow channel and the inlet opening 32 the third flow channel, where the geometric center 16 the entrance opening 32 of the third flow channel in a horizontal plane 12 located. The geometric center 16 the entrance opening 32 of the third flow channel is between the vertical plane 14 the first flow channel and the vertical plane 21 the second flow channel, wherein the respective vertical plane 14 . 21 pass through the geometric center of the first and second flow channel. The horizontal plane 11 the entrance opening 5 of the fourth flow channel is in the direction of the axis 33 above the horizontal plane 12 r entrance opening 32 of the third flow channel. The axis 33 is perpendicular to the ground and opposite to the direction of the solder. In the 4 For example, the embodiment shown corresponds to an extruder end molding apparatus for molding exploded rubber compounds into a tread of a vehicle tire. Preferably, the in 4 illustrated extruder Endform device according to the invention combined with an extruder-guiding device described above so that an inventive extruder-molding system is formed.

More preferably, the exit openings on the first side of an extruder-guide device described above are arranged in this extruder-molding system so that the rubber components readily fit into the corresponding inlets on the first side of the extruder-endform apparatus as in FIG 4 can occur represented.

5 shows a schematic representation of an extruder-molding system according to the invention 17 in one embodiment, which is an extruder final molding apparatus 1 and an extruder guide device 7 includes. You can also see the extruder screws 20 containing the rubber mixture before entering the extruder-molding system 17 extrude and the rubber mixture along the extrusion movement 15 up to the outlet 19 of the third flow channel in the extruder final molding apparatus 1 move. Also shown are the channels 18 the extruder-guiding device of an extruder-molding system according to the invention 17 , In 5 It can be clearly seen that by skillfully positioning the inlet openings of the various flow channels in the extruder final molding apparatus 1 the extruder guide device 7 take over no self-organizing or forming function. The extruded rubber blends are made only by using the extruder guide device 7 to the extruder Endform device according to the invention 1 guided. For this it is advantageous if the outlet openings on the first side 37 the extruder guide device 7 are arranged so that the rubber components easily into the corresponding inlet openings on the first page 36 the extruder final molding apparatus 1 as in 5 can occur represented.

6 shows a schematic representation of a transverse profile of a tread of a vehicle tire as an example of a Gesamtkautschukelements, which consists of six rubber components 22 . 23 . 24 . 25 . 26 . 27 consisting of a rubber component 27 is electrically conductive.

7 shows a schematic representation of a transverse profile of a multi-component side wall of a vehicle tire as an example of a total rubber element, which consists of three rubber components 24 . 25 . 26 consists.

LIST OF REFERENCE NUMBERS

1

Extruder device endform

2

first flow channel

3

second flow channel

4

Total rubber element

5

Inlet opening of the fourth flow channel

6

third flow channel

7

Extruder guiding device

8th

Normal vector of the vertical plane of the first flow channel

9

Normal vector of the vertical plane of the second flow channel

10

geometric center of the inlet opening of the fourth flow channel in the extruder Endform device

11

horizontal plane of the fourth flow channel

12

horizontal plane of the third flow channel

13

Inlet opening of the discharge flow channel

14

vertical plane of the first flow channel

15

Direction of extrusion movement

16

geometric center of the inlet opening of the third flow channel in the extruder final molding apparatus

17

Extruder molding system

18

Channels of the extruder guide device

19

Outlet opening of the third flow channel in the extruder Endform device

20

extruder screw

21

vertical plane of the second flow channel

22

fourth rubber component

23

fifth rubber component

24

third rubber component

25

first rubber component

26

second rubber component

27

electrically conductive rubber component

28

Inlet opening of the first flow channel

29

Inlet opening of the second flow channel

30

Outlet opening of the first flow channel

31

Outlet opening of the second flow channel

32

Inlet of the third flow channel

33

Axis (against the direction of the perpendicular)

34

Length of the extruder final molding device

35

Steigdüse

36

first page of the extruder final molding apparatus

37

first page of the extruder guide device

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 4683095 A [0003]

Claims (9)

An extruder end-molding device (1) for molding extruded rubber mixtures into an overall rubber element (4), characterized in that - the extruder end-molding device (1) comprises at least one first flow channel (2) provided for arranging a first rubber component (25) ), - a second flow channel (3) provided for the arrangement of a second rubber component (26) and - a third flow channel (6) provided for arranging a third rubber component (24), wherein - the first flow channel (2), the second flow channel ( 3) and the third flow channel (6) each have an inlet opening (28, 29, 32) on a first side (36) of the extruder-end molding apparatus (1), and - the first flow channel (2) and the second flow channel ( 3) in the third flow channel (6) open. Device after Claim 1 characterized in that the extruder final molding apparatus (1) additionally comprises at least one fourth flow channel provided for disposing a fourth rubber component (22), the fourth flow channel having an inlet opening (5) on the first side (36) of the final extruder die Device (1) and the fourth flow channel in the third flow channel (6) opens, wherein the inlet opening (5) of the fourth flow channel preferably spatially above the inlet opening (32) of the third flow channel (6). Device according to one of the preceding claims, characterized in that the inlet opening (32) of the third flow channel (6) spatially between the inlet opening (28) of the first flow channel (2) and the inlet opening (29) of the second flow channel (3). Device after Claim 1 characterized in that the extruder final molding apparatus (1) additionally comprises a fourth flow channel provided for disposing a fourth rubber component (22) and a fifth flow channel provided for disposing a fifth rubber component (23), the fourth flow channel and the Fifth flow channel each having an inlet opening on the first side (36) of the extruder-Endform device (1), and the fourth flow channel and the fifth flow channel in the third flow channel (6) open. Device after Claim 4 , characterized in that - the inlet opening (32) of the third flow channel (6) lies spatially between the inlet opening (28) of the first flow channel (2) and the inlet opening (29) of the second flow channel (3), - the inlet opening (5) the fourth flow channel is spatially above the inlet opening (32) of the third flow channel (6) and - the inlet opening of the fifth flow channel is spatially above the inlet opening (32) of the third flow channel (6). Device according to one of the preceding claims, characterized in that the extruder Endform device (1) additionally - a for the arrangement of an electrically conductive rubber component (27) provided drainage flow channel, wherein the discharge flow channel an inlet opening (13) on the first side (36) of the extruder-end molding apparatus (1) and the discharge flow channel in the third flow channel (6) opens. Device according to one of the preceding claims, characterized in that the length (34) of the extruder end-molding device (1) in the extrusion direction (15) in the range of 5 to 200 mm. An extruder-molding system (17) comprising an extruder end-molding device (1) according to one of the preceding claims and at least one extruder-guiding device (7) having a first side (37), characterized in that the extruder-guiding device (7 ) in the direction of an extrusion movement (15) spatially in front of the extruder-endform device (1), and the extruder-guiding device (7) at least comprising: - a first flow channel (2) with an outlet opening (30) on the first Side (37) of the extruder-guiding device (7), - a second flow channel (3) with an outlet opening (31) on the first side (37) of the extruder-guiding device (7) and - a third flow channel (6) with an outlet opening (19) on the first side of the extruder-guiding device (7), characterized in that the distance between the outlet opening (30) of the first flow channel (2) on the first side (37) of the extruder-guiding device (7) and the outlet opening (19) of the third flow channel (6) on the first side (37) of the extruder-guiding device (7) corresponds to at least 1 cm and the distance between the outlet opening (31) of the second flow channel (3) on the first side (37) the extruder-guiding device (7) and the outlet opening (19) of the third flow channel (6) on the first side (37) of the extruder-guiding device (7) corresponds to at least one 1 cm. Use - an extruder-molding system (17) after Claim 8 or - a device (1) according to one of Claims 1 to 7 for molding extruded rubber blends into a total rubber element (4).

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