Claims
- 1. A device for applying glue to fibers of wood and like material, and for distributing the glue in the material, which includes in combination: a substantially horizontally disposed drum-shaped container having an inlet in the top at one end for admitting the material to which glue is to be applied, and having an outlet in the bottom at the other end for discharge of said material with the glue applied uniformly thereto, said drum-shaped container comprising a first axial zone adjacent to and communicating with said inlet, glue applying means in said first zone for the application of glue to fiber material supplied to the drum through said inlet, said drum-shaped container also comprising a second axial zone forming a mixing chamber in which said material and the glue applied thereto are thoroughly intermixed, said mixing chamber communicating at one end with said first axial zone and at the other end with said outlet, a shaft extending through said drum-shaped container on the axis thereof and rotatable therein, needle-shaped tools arranged in groups on said shaft in said second axial zone and extending in radial direction from said shaft to near the inner wall of said mixing chamber, said groups of needle-shaped tools being located on said shaft in axially and circumferentially spaced relationship to each other, said shaft having material impelling means thereon within the range of said inlet at the upstream end of said first zone and also upstream from said glue applying means and forming the sole means to impel material supplied to the drum via said inlet toward said outlet, said glue applying means comprising radial elements mounted on said shaft in said first zone and extending to near the inner wall of said chamber, said elements being tubular and having perforations therein, and means for supplying glue to said elements via said shaft, said material following a generally helical path along the inner wall of said container under the combined influences of said impelling means and said elements and said needle-shaped tools.
- 2. A device in combination according to claim 1 in which the thickness of the needle-shaped tools at least in the region adjacent the inside of said drum-shaped container is below 5mm.
- 3. A device in combination according to claim 1 in which the thickness of the needle-shaped tools at least in the region adjacent the inside of said drum-shaped container is below approximately 3mm.
- 4. A device in combination according to claim 1 in which the needle-shaped tools at least within the regions thereof adjacent the inner wall surface of said drum-shaped container are bent in the planes of rotation thereof so as to be concave toward the leading sides thereof.
- 5. A device in combination according to claim 1 in which said needle-shaped tools are formed of steel.
- 6. A device in combination according to claim 1 in which said needle-shaped tools are formed of spring steel wire.
- 7. A device in combination according to claim 1 in which said needle-shaped tools on said rotatable shaft are arranged in radial planes perpendicularly located with regard to the longitudinal axis of said rotatable shaft, each plane containing a plurality of said needle-shaped tools.
- 8. A device in combination according to claim 1 in which the spacing of said needle-shaped tools in axial direction of said rotatable shaft is less than half the inner diameter of said drum-shaped container.
- 9. A device in combination according to claim 1 in which the spacing of said needle-shaped tools in axial direction of said rotatable shaft is less than one-third the inner diameter of said drum-shaped container.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2344231 |
Sep 1973 |
DT |
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RELATED APPLICATION
This application is a continuation-in-part of my copending application: U.S. Ser. No. 502,630, filed Sept. 3, 1974, entitled: METHOD AND DEVICE FOR APPLYING GLUE TO FIBER MATERIAL: Inventors: Hermann Forster et al which application is now abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1,080,978 |
May 1960 |
DT |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
502630 |
Sep 1974 |
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