Fire-fighting air duct side edge sewing device

Abstract

The invention provides a fire-fighting air duct side edge sewing device. The fire-fighting air duct side edge sewing device comprises a bottom plate, a side plate, two conveying roller mechanisms, an edge folding assembly, edge curling assemblies and a supporting mechanism, wherein the two conveying roller mechanisms are arranged and are distributed at the upper end and the lower end of a fire-fighting air duct respectively, so that the fire-fighting air duct is clamped and conveyed; the edge folding assembly is used for bending an edge curling part, and the edge curling assemblies are used for curling the bent edge curling part, so that the edge curling part is tightly pressed on the outer wall of another bending plate, and sewing is realized; and the supporting mechanism is arranged in an inner cylinder and at the position, corresponding to each edge curling assembly, of the fire-fighting air duct, so that the interior of the fire-fighting air duct is supported. The fire-fighting air duct side edge sewing device is simple in structure, the supporting mechanism can effectively support the fire-fighting air duct in the cross section direction of the fire-fighting air duct, so that the fire-fighting air duct can be effectively prevented from deforming when the edge curling assembly is used for processing the curled edge, and the product quality and efficiency are improved; and the supporting mechanism is suspended and fixed through an electromagnetic chuck, so that the production efficiency can be effectively improved, and a foundation is provided for processing of the ultra-long fire-fighting air duct.

Description

technical field [0001] The invention relates to the processing technology of a fire-fighting air duct, in particular to a side sewing device for a fire-fighting air duct. Background technique [0002] During the processing of the fire smoke exhaust duct (referred to as the fire duct in this case), generally two symmetrical bent plates are selected to be fastened together, and then curled at the edge of the bent plate, so that the two bent plates pass through the curling Achieve stitching. At present, the stitching of fire-fighting ducts can only rely on manual beating. Each 1.5-meter fire-fighting duct takes more than 30 minutes to be manually beaten and stitched. It is uneven, which seriously affects the suture quality and aesthetics, and the efficiency is relatively low. [0003] After research, the inventor found that the main reason for manual beating is that there is no support on the inner side after the two halves of the bent plate are assembled. If the curling mach...

AI Technical Summary

Problems solved by technology

At present, the stitching of fire-fighting ducts can only rely on manual beating. Each 1.5-meter fire-fighting duct takes more than 30 minutes to be manually beaten and stitched. The unevenness of the place seriously affects the suture quality and aesthetics, and the efficiency is relatively low.

[0003] After research, the inventor found that the main reason for manual beating is that there is no support on the inner side after the two halves of the bent plate are assembled. If the curling machine is directly used for curling, it will cause local deformation of the bent plate and seriously affect the processing quality. And the pass rate is very low

After the two halves of the bent plate are assembled, the interior of the fire exhaust duct is closed, so it is difficult to provide effective support inside it, especially under the premise that the fire duct itself is relatively long, it can be inserted into the fire duct through an external device It is very difficult to support the inside of the fire duct, and the deformation of the fire duct after processing must also be considered. If this is directly inserted into the interior for support, the deformation of the fire duct may make it difficult to remove the supporting device, especially The way of whole support or at least half support in the length direction of the fire duct

And even if the inside of the fire duct can be supported, the installation of the bent plate, seaming and removal of the supporting device cannot be separated from labor, which will cause the cost to increase

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