GB687027A - Underply turn down and stitching device for a tyre-building machine - Google Patents
Underply turn down and stitching device for a tyre-building machineInfo
- Publication number
- GB687027A GB687027A GB2695350A GB2695350A GB687027A GB 687027 A GB687027 A GB 687027A GB 2695350 A GB2695350 A GB 2695350A GB 2695350 A GB2695350 A GB 2695350A GB 687027 A GB687027 A GB 687027A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rolls
- drum
- shaft
- piston
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/28—Rolling-down or pressing-down the layers in the building process
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
687,027. Tyre-building machines. NATIONAL RUBBER MACHINERY CO. Nov. 3, 1950, No. 26953/50. Class 144 (i). In a tyre-building machine, means for holding down the under-ply fabric U on the end portions of the flat surface of the building- drum D whilst the overhanging edge-portions are being folded down the ends of the drum, comprise a power-cylinder 18 pivoted on a fixed support with a pair of pistons which are actuated in succession; first, to move a stitcherroll up to the fabric on the drum and then, at a relatively slower speed, to move a turn-down roll over the edge-portion of the fabric. As shown, pairs of rolls 1, 2 are adjustable on a rock-shaft 3, the rolls 1 being carried on swinging arms 4 on the shaft and the rolls 2 on arms 12 fast on the shaft. When the rolls 1 contact the flat surface of the drum, further rocking of the shaft 3 advances the rolls 2 down the ends of the drum whilst pressure of the rolls 1 is increased by means of springs 9 fitted between lugs 8 on the arms 4 and lugs 6 fast on the shaft. The power-cylinder 18 is divided by a wall 22, the upper portion being fitted with a piston 19, the rod 20 of which is pivoted to a yoke 15 on the shaft 3 and the lower portion with a piston 23 whose rod 24 is pivoted at 25 to the fixed framing 16. In use, the rolls are rocked into initial operative position by actuation of the piston 19 which, at the end of its stroke, uncovers a terminal port in the cylinder-wall to direct a restricted flow of fluid between the partition 22 and piston 23. The assembly of cylinder 18 and piston 19 is thus advanced, at a slower rate, to move the rolls 2 down the ends of the drum.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2695350A GB687027A (en) | 1950-11-03 | 1950-11-03 | Underply turn down and stitching device for a tyre-building machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2695350A GB687027A (en) | 1950-11-03 | 1950-11-03 | Underply turn down and stitching device for a tyre-building machine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB687027A true GB687027A (en) | 1953-02-04 |
Family
ID=10251807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2695350A Expired GB687027A (en) | 1950-11-03 | 1950-11-03 | Underply turn down and stitching device for a tyre-building machine |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB687027A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117283226A (en) * | 2023-11-24 | 2023-12-26 | 华洲重工股份有限公司 | Turnover jig frame for welding steel box girder |
-
1950
- 1950-11-03 GB GB2695350A patent/GB687027A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117283226A (en) * | 2023-11-24 | 2023-12-26 | 华洲重工股份有限公司 | Turnover jig frame for welding steel box girder |
CN117283226B (en) * | 2023-11-24 | 2024-02-02 | 华洲重工股份有限公司 | Turnover jig frame for welding steel box girder |
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