| 摘要 |
1,134,674. Seaming non-metallic sheet material. GUILD METAL JOINING EQUIPMENT CO. 8 Feb., 1967 [30 Aug., 1966], No. 5969/67. Heading B5K. [Also in Division B3] Apparatus for joining strip material comprises a frame 2, a stationary shear assembly 6 supported by the frame, a carriage 11, means mounting the carriage above the shear assembly 6, a support member pivotally mounted on the carriage 11, a movable shear assembly 10 carried by one end of the support member, means for pivoting the support member to bring the shear assembly 10 into strip pass height for co-operation with the shear assembly 6, and a planish roll 55 carried by the one end of the support member outwardly of the shear assembly 6, the pivoting means supplying planishing pressure for the roll 55. During processing of a strip exit and entry clamp assemblies 31, 32, are retracted and when the end of the strip being processed is reached it is clamped in the assembly 31. The leading end of a new strip is clamped in the assembly 32 and the carriage 11 is traversed with the assembly 10 at strip pass height, the assembly 10 being guided by a shoe 30 which engages shear knives 8. Slitter knives 20 co-operate with the stationary shear knives 8 to trim the ends of the strips. At the end of the shear stroke the assemblies 31, 32 are indexed inwardly, Fig. 5 (not shown), and a carriage 45 is moved to locate a weld back-up bar 36 below the strip joint, the bar then being raised into contact with the strips. A welding torch 26 is lowered by a piston-cylinder assembly 24 and the carriage 11 traverses the strips in the reverse direction. Types of welding assemblies other than the torch 26 may be used, such as a seam welding wheel, spot welding electrodes, spot stitch equipment, gas welding apparatus or flash butt welding apparatus. After completion of welding, a stop 60 is moved into position for engagement by a stop pin 61, and the piston-cylinder assembly 24 lowers the planish roll 55, which is journalled in the shoe 30. The weld back-up bar 36 is lowered and the carriage 45 moved to position a planish back-up bar 62 beneath the welded joint. The bar 62 is brought into contact with the joint and the carriage 11 again traverses the strips to planish the weld. When planishing is completed, the clamp assemblies 31, 32 are opened to allow further processing of the strip. |
