Apparatus for removing excess coating material from chain link fabric |
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| 申请号 | US33011873 | 申请日 | 1973-02-06 | 公开(公告)号 | US3845741A | 公开(公告)日 | 1974-11-05 |
| 申请人 | ROBERTS K; | 发明人 | ROBERTS K; | ||||
| 摘要 | An apparatus and method for removing excess coating material from chain link fabric during the manufacture of the fabric. A gang of sprocket members are arranged side-by-side on a shaft for rotation about the shaft axis. Each of the sprocket members includes a plurality of radially outwardly extending teeth having notches formed along the length thereof. Chain link fabric is passed over the gang of sprockets such that the teeth engage through respective openings formed by the wire or other members of the fabric. When the fabric is removed from the sprockets, the notches in the teeth cause intermittent hitching and release of the fabric which vibrates the fabric to remove excess molten coated material from the fabric. The gang of sprockets is arranged intermediate a coating tank and a cooling tank for the chain link fabric such that the coating material is in the molten state when it passes over the sprockets. The sprocket members are dimensioned slightly smaller than the openings in the chain link fabric and the notches are configured so as to permit relatively smooth movement of the teeth into the openings in the fabric while providing a vibration inducing interengagement between the notches and fabric members upon withdrawal of the fabric from the sprockets. | ||||||
| 权利要求 | 1. An arrangement for removing excess molten coating material from chain link fabric of the type having a plurality of openings formed between intersecting fabric members; said arrangement comprising: coating means for coating said fabric and cooling means for cooling said fabric after it has been coated, at least one sprocket member having a plurality of outwardly projecting sprocket teeth, and means for movably guiding chain length fabric over a predetermined portion of the circumference of said at least one sprocket member such that portions of said teeth extend through respective openings in said fabric during movement of said fabric oveR said at least one sprocket member, wherein said teeth are configured and positioned with respect to said openings such that said teeth cause vibration of said fabric when said fabric is moved from a position with said portions of said teeth extending through said openings to a position with said portions of said teeth removed from said openings, wherein at least some of said teeth have a plurality of notches arranged along the longitudinal extend of said teeth, said notches being engageable with the fabric members around the respective openings to cause said vibration of said fabric, and wherein said at least one sprocket member is disposed in the path of said fabric between said coating means and said cooling means, whereby excess coating material supplied to said fabric by said coating means is removed from said fabric before cooling of said fabric by said cooling means. 2. An arrangement according to claim 1, wherein said coating means includes a coating tank through which the fabric is passed. 3. An arrangement according to claim 2, wherein said at least one sprocket member is positioned such that said fabric travels over said at least one sprocket member with approximately 180* overlap. 4. An arrangement according to claim 3, further comprising motor means for forcibly rotating said at least one sprocket member, whereby said at least one sprocket member operates to pull said fabric from said coating tank. 5. An arrangement according to claim 1, further comprising flame means for heating said at least one sprocket member to prevent said coating material from annealing to said at least one sprocket member. 6. An arrangement according to claim 1, wherein a plurality of sprocket members are provided, said sprocket members being mounted on a single driven shaft, whereby said sprocket members operate to pull said fabric from a coating tank of said coating means. 7. An arrangement according to claim 6, further comprising flame means for heating said sprocket members to prevent said coating material from annealing to said sprocket members. 8. An arrangement according to claim 1, wherein said sprocket member includes a centrally disposed hub portion, wherein said teeth extend radially outwardly from said hub portion, wherein each of said teeth has a substantially polygonal cross-section when viewed in the radial direction of said hub portion, wherein said notches are formed at respective intersections of the sides forming said polygonal cross-section, wherein each of said notches are formed with two planar notch sides intersecting one another, wherein each of said notches is formed symmetrically with respect to the respective intersection of the sides forming said polygonal cross-section, wherein the two planar notch sides of a respective notch are inclined at different angles from one another with respect to a longitudinal tooth centerline extending through a respective one of said teeth, said tooth centerline extending radially of said hub portion, and wherein the planar surface of a notch which is disposed radially inwardly with respect to said hub portion is inclined to said tooth centerline at a smaller angle than the other planar surface of said notch. 9. An arrangement according to claim 8, wherein said at least one sprocket member is positioned such that said fabric travels over said at least one sprocket member with approximately 180* overlap. 10. An arrangement according to claim 9, further comprising motor means for forcibly rotating said at least one sprocket member, whereby said at least one sprocket member operates to pull said fabric from said coating tank. |
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