A stretching oven with adjustable damping force

Abstract

The invention discloses a stretching oven with adjustable damping force, which belongs to the technical field of plastic-steel belt production. The key points of the technical solution are to include a box body, openings are opened at both ends of the box body, and a heating structure and a heating structure are arranged in the box body. A tensile structure, the tensile structure includes a damping roller rotatably connected to the box near one end opening, a traction roller rotatably connected to the box and a first driving structure for driving the traction roller to rotate, the damping roller is connected with a damping structure, The damping structure includes a casing arranged on the box body, an impeller and a liquid storage tank rotatably connected in the casing, one end of the casing located in the axial direction of the impeller is connected with a liquid inlet pipe, and the other end is connected with a liquid outlet pipe. Both the liquid pipe and the liquid outlet pipe communicate with the liquid storage tank, the liquid outlet pipe is provided with a regulating valve, and the impeller is coaxially connected with the damping roller. The invention has the effect of making the strip material before entering the stretching heating box receive more stable pulling 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

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