The present invention relates to the field of SMT splicing belt processing equipment, in particular to a bonding machine for new and old SMT splicing belts, comprising a supporting plate, in which a new splicing belt conveying device and an old splicing belt conveying device which are opposite are arranged on the supporting plate; both sides of the two groups of conveying devices are equipped with limiting blocks which are matched with splicing belts; a jacking device matched with the splicing belts is arranged on the top of the supporting plate; a bonding mechanism matched with the splicing belts is arranged above the jacking device; and the new splicing belt conveying device, the old splicing belt conveying device, the jacking device and the bonding mechanism are connected to a controller. The present invention aims to provide the bonding machine for new and old SMT splicing belts; new and old splicing belts are conveyed to the center through the new splicing belt conveying device and the old splicing belt conveying device, and the new splicing belts and the old splicing belts are bonded and sewed through the bonding mechanism, so that the old splicing belts can be recycled without damaging the splicing effects of the splicing belts, and therefore, the splicing cost is reduced to certain extent.

An automatic heat-insulating material replacement device includes a heat-insulating material replacement rack and a cutter. The replacement rack is rotatably connected to a supporting frame and is pivotally provided with a first and a second reel, which are wound with a first and a second heat-insulating material respectively. The first heat-insulating material has one end to be transported and coated to a substrate. When the first heat-insulating material is almost used up, the replacement rack is rotated to bond the second heat-insulating material to the first heat-insulating material adhesively, allowing the latter to be driven by the former and to be coated to the corresponding substrate. The cutter severs the first heat-insulating material at a position between the opposite end of the first heat-insulating material and the adhesively bonded area of the two heat-insulating materials so that the remaining first heat-insulating material on the first reel can be replaced.

Adhesive tape for flying splices of flat web materials, in particular flat web materials with nonpolar surfaces, said adhesive tape at least comprising an upper self-adhesive compound layer, an inner adhesive tape area adapted as a flat predetermined breaking point, and a lower self-adhesive compound on the underside of the inner adhesive tape area, wherein a natural rubber adhesive compound is used as the self-adhesive compound for at least the upper self-adhesive compound layer, as well as methods for flying splices of flat web material wound onto rolls, in particular with nonpolar surfaces, using a corresponding adhesive tape.

Disclosed in the present application are an automatic roll replacing device, and winding equipment. The automatic roll replacing device includes: a mounting frame; an unwinding mechanism, including an unwinding shaft rotatably connected to the mounting frame around its own axis; a spare material mechanism, including a spare material shaft having a contact end and a material pushing member providing an axial pushing force for a spare material roll on the spare material shaft, the spare material shaft being rotatably connected to the mounting frame around the rotation axis, and the material pushing member being controlled to push the spare material roll on the spare material shaft to transfer to the unwinding shaft; and a strip connection mechanism, provided on the mounting frame, and used for cutting off a work material strip unwound from the unwinding shaft and connecting the cut-off work material strip to the spare material roll.