Damping-force-adjustable stretching drier

Abstract

The invention discloses a damping-force-adjustable stretching drier, and belongs to the technical field of plastic-steel belt production. According to the main point of the technical scheme, the damping-force-adjustable stretching drier comprises a box body, wherein openings are formed in the two ends of the box body, a heating structure and a stretching structure are arranged in the box body, thestretching structure comprises a damping roller, a traction roller and a first driving structure, wherein the damping roller is connected to the position, near the opening in one end, of the box bodyin a rotary mode, the traction roller is connected in the box body in a rotary mode, and the first driving structure drives the traction roller to rotate. A damping structure is connected to the damping roller, the damping structure comprises an outer shell arranged on the box body, a blade wheel and a liquid storage tank rotatably connected in the outer shell, a liquid inlet pipe communicates with the end, in the radial direction of the blade wheel, of the outer shell, an liquid outlet pipe communicates with the other end of the outer shell, both the liquid inlet pipe and the liquid outlet pipe communicate with the liquid storage tank, an adjusting valve is arranged on the liquid outlet pipe, and the blade wheel is connected with the damping roller in a co-shaft mode. The damping-force-adjustable stretching drier has the effect of enabling belt-shaped materials before entering the stretching heating box to bear a more stable stretching force.

Description

technical field [0001] The invention relates to the technical field of plastic-steel strip production, more specifically, it relates to a stretching oven with adjustable damping force. Background technique [0002] PET plastic-steel belt is a kind of packaging material with good tensile strength and excellent welding performance. It has good tension retention ability and will not relax for a long time after being packed, thus ensuring the goods have excellent impact resistance during long-distance transportation. , and its cost per meter is lower than that of steel strips, and it is easy to produce. Now it has become the mainstream strapping belt for packaging heavy objects. [0003] At present, the Chinese invention patent with the notification number CN203651000U discloses a double-channel PET plastic-steel belt production line, which is sequentially equipped with an extruder, a double-mouth die, a cold drum, A and B distributors, a heating traction roller, and a heating ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: when it is necessary to stretch plastic-steel strips of different sizes, it is necessary to adjust the rotation speed of the traction rollers in the stretching and heating box, thereby increasing the tension of the traction rollers and causing the tension of the damping rollers to increase. It also increases, which in turn leads to the speed at which the strip-shaped material enters the stretching heating box, while the extruder at the front end of the production line extrudes the material at the same speed, which leads to a greater tension on the strip-shaped material before entering the stretching heating box

Images