Device for suctioning off waste products from a production machine
US-2015224698-A1 · Aug 13, 2015 · US
Device for suctioning off waste products from a production machine, comprising a suction element
US9764896B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9764896-B2 |
| Application number | US-201314425639-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 16, 2013 |
| Priority date | Sep 4, 2012 |
| Publication date | Sep 19, 2017 |
| Grant date | Sep 19, 2017 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
The invention relates a device for suctioning off waste products of the production machine comprising a suction chamber at which at least a suction element is assembled which extends into a suction space, which is outside the suction chamber in order to convey waste products into the suction chamber, wherein the suction element comprises an inlet area, which is facing the suction space and an outlet area, which ends in the suction chamber.
First claim
Opening claim text (preview).
What is claimed is: 1. Device ( 1 ) configured to suction waste products ( 2 ) of a production machine ( 3 ), which are configured as continuous stripes, with a suction chamber ( 10 ) at which at least a suction element ( 20 ) is assembled which extends into a suction space ( 4 ) which is outside the suction chamber ( 10 ) in order to convey waste products ( 2 ) into the suction chamber ( 10 ), wherein the suction element ( 20 ) comprises an inlet area ( 24 ), which is facing the suction space ( 4 ) and an outlet area ( 28 ), which ends in the suction chamber ( 10 ) characterized in that the suction element ( 20 ) comprises a circumferential wall ( 30 ) that interfaces with the suction chamber ( 10 ) tangentially over a first portion of the circumferential wall ( 30 ) facing an upstream direction of flow through the suction chamber ( 10 ) and that interfaces with the suction chamber ( 10 ) at an angle between 20-70 degrees over a second portion of the circumferential wall ( 30 ) facing a downstream direction of flow through the suction chamber ( 10 ), wherein the portion of the circumferential wall ( 30 ) facing an upstream direction of flow through the suction chamber ( 10 ) is an inner wall ( 31 ) and wherein the tangential interface is between the inner wall ( 31 ) and the outlet area ( 28 ) and together with the angled interface is configured to avoid blockage. 2. Device ( 1 ) according to claim 1 , wherein the portion of the circumferential wall ( 30 ) facing an upstream direction of flow through the suction chamber ( 10 ) is an inner wall ( 31 ) and characterized in that the inner wall ( 31 ) comprises a cross-section which is circular and comprises a defined radius. 3. Device ( 1 ) according to claim 1 , characterized in that at the outlet area ( 28 ) a middle negative pressure zone ( 51 ) is surrounded by an outer negative pressure zone ( 52 ), wherein pressure in the middle negative pressure zone ( 51 ) is lower than pressure in the outer negative pressure zone ( 52 ) wherein the outer negative pressure zone ( 52 ) is between the middle negative pressure zone ( 51 ) and the circumferential wall ( 30 ) and wherein the middle negative pressure zone ( 51 ) and the outer negative pressure zone ( 52 ) are configured to direct the flow through the middle of the suction element ( 20 ). 4. Device ( 1 ) of claim 1 , wherein a cross section of the suction element ( 20 ) narrows between the inlet area ( 24 ) and the outlet area ( 28 ). 5. Device ( 1 ) according to claim 4 , characterized in that starting from the narrowed area to the outlet area ( 28 ) the cross section of the suction element ( 20 ) increases again. 6. Device ( 1 ) according to claim 1 , characterized in that the second portion of the circumferential wall ( 30 ) is planar. 7. Device ( 1 ) according to claim 1 , characterized in that the second portion of the circumferential wall ( 30 ) is curved. 8. Device ( 1 ) according to claim 1 , characterized in that at least one of the inlet area ( 24 ) and the outlet area ( 28 ) of the suction element ( 20 ) comprise a round cross section. 9. Device ( 1 ) according to claim 1 , characterized in that the suction element ( 20 ) is configured with a pipe ( 21 ) between the inlet area ( 24 ) and the outlet area ( 28 ) wherein particularly the pipe ( 21 ) comprises a round cross section. 10. Device ( 1 ) according to claim 1 , characterized in that the suction element ( 20 ) is a flexible part from metal wherein the flexible part is configured from four metal band elements ( 20 a , 20 b , 20 c , 20 d ), which are assembled with one another. 11. Device ( 1 ) according to claim 1 , characterized in that the inlet area ( 24 ) comprises an increasing cross section towards the suction space ( 4 ), which is funnel-like. 12. Device ( 1 ) according to claim 1 , characterized in that a sealing means ( 40 ) is assembled at the suction chamber ( 10 ) and is closing the suction chamber ( 10 ), wherein the suction element ( 20 ) extends with its outlet area ( 28 ) through the sealing means ( 40 ). 13. Device ( 1 ) according to claim 12 , characterized in that the suction element ( 20 ) comprises a foot ( 22 ), which is assembled underneath the sealing means ( 40 ), wherein the foot ( 22 ) is configured to attach the suction element 20 to the suction chamber 10 . 14. Device ( 1 ) according to claim 13 , characterized in that the suction element ( 20 ) is moveable along the sealing means ( 40 ), wherein the position of the suction element ( 20 ) is variably adjustable at the suction chamber ( 10 ). 15. Device ( 1 ) according to claim 1 , characterized in that the suction element ( 20 ) is configured to remove waste products ( 2 ) from plastic paper or a film. 16. Device ( 1 ) according to claim 1 , characterized in that at least one of the inlet area ( 24 ) and the outlet area ( 28 ) of the suction element ( 20 ) comprise a rectangular cross section. 17. Device ( 1 ) according to claim 1 , characterized in that the suction element ( 20 ) is configured with a pipe ( 21 ) between the inlet area ( 24 ) and the outlet area ( 28 ) wherein particularly the pipe ( 21 ) comprises a rectangular cross section. 18. Device ( 1 ) configured to suction waste products ( 2 ) of a production machine ( 3 ), which are configured as continuous stripes, with a suction chamber ( 10 ) at which at least a suction element ( 20 ) is assembled which extends into a suction space ( 4 ) which is outside the suction chamber ( 10 ) in order to convey waste products ( 2 ) into the suction chamber ( 10 ), wherein the suction element ( 20 ) comprises an inlet area ( 24 ), which is facing the suction space ( 4 ) and an outlet area ( 28 ), which ends in the suction chamber ( 10 ) characterized in that the suction element ( 20 ) comprises a circumferential wall ( 30 ) that interfaces with the suction chamber ( 10 ) tangentially over a first portion of the circumferential wall ( 30 ) facing an upstream direction of flow through the suction chamber ( 10 ) and that interfaces with the suction chamber ( 10 ) at an angle between 20-70 degrees over a second portion of the circumferential wall ( 30 ) facing a downstream direction of flow through the suction chamber ( 10 ), wherein the tangential interface together with the angled interface is configured to avoid blockage and wherein the tangential interface together with the angled interface is configured to create at the outlet area ( 28 ) a middle negative pressure zone ( 51 ) that is surrounded by an outer negative pressure zone ( 52 ), wherein pressure in the middle negative pressure zone ( 51 ) is lower than pressure in the outer negative pressure zone ( 52 ), wherein the outer negative pressure zone ( 52 ) is between the middle negative pressure zone ( 51 ) and the circumferential wall ( 30 ) and wherein the middle negative pressure zone ( 51 ) and the outer negative pressure zone ( 52 ) are configured to direct the flow through the middle of the suction element ( 20 ). 19. Device ( 1 ) of claim 18 , wherein the circumferential wall ( 30 ) interfaces with the suction chamber ( 10 ) at an angle between 20-70 degrees over the portion of the circumferential wall ( 30 ) facing the downstream direction of flow through the suction chamber ( 10 ). 20. Device ( 1 ) of claim 18 , wherein a cross section of the suction element ( 20 ) narrows between the inlet area ( 24 ) and the outlet area ( 28 ).
Assignees
Inventors
Classifications
Conveyors for extruded articles · CPC title
Sealing means · CPC title
of materials · CPC title
means for preventing the accumulation or for removal of deposits (preventing accumulation in pipes in general F16L55/24) · CPC title
Cleaning; Purging; Avoiding contamination · CPC title
Patent family
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External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9764896B2 cover?
- The invention relates a device for suctioning off waste products of the production machine comprising a suction chamber at which at least a suction element is assembled which extends into a suction space, which is outside the suction chamber in order to convey waste products into the suction chamber, wherein the suction element comprises an inlet area, which is facing the suction space and an o…
- Who is the assignee on this patent?
- Windmoeller & Hoelscher
- What technology area does this patent fall under?
- Primary CPC classification B29B17/0005. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 19 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).