Automatic cooling traction equipment for plastic extruded strip

Abstract

The present invention discloses automatic cooling traction equipment for plastic extruded strips. The equipment includes a rack and a traction device mounted in the rack; the traction device comprises a traction roller, a driven roller, a metal conveyor belt and a plurality of strip pressure rubber rollers; the metal conveyor belt has a feed surface for friction conveying of material strips; the feeding surface of the metal conveyor belt is a single straight bevel extending from a driven rubber roller end a traction rubber roller end and gradually rising. On the one hand, the present invention uses a single straight bevel conveyor belt structure to replace a traditional ''flat-oblique- flat'' three-stage conveyor belt structure, and with the reduced inclination angle of the conveyor belt, the driving force of the conveyor belt greatly reduces; on the other hand, the rubber rollers drive the metal conveyor belt, and as the hardness of the rubber rollers is small, a soft versus hard transmission mode is formed between the rubber rollers and the metal conveyor belt, so that little noise is produced. In general, the invention has the advantages of fewer components, low power dissipation of the driving motor, high efficiency, energy saving and great reduction of noise.

Description

technical field [0001] The invention relates to the technical field of strip production equipment, in particular to an automatic cooling traction equipment for plastic extrusion strips with simple structure, low noise and low energy consumption. Background technique [0002] At present, there are many stretching machines used in the production of plastic strips, and the shapes and structures are also very different. The design structure of most existing stretching machines is relatively complicated, with many components, and the cost and space are relatively large. Uneconomical. Chinese patent 201420347675.9 discloses an intelligent automatic strip traction device. The main body of the device is composed of three major parts, the first lifting frame and the second lifting frame, and the connection structure connecting the two lifting frames; its conveyor belt is also divided into three parts. The first and third sections are horizontal sections, and the second section in th...

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Problems solved by technology

[0002] At present, there are many stretching machines used in the production of plastic strips, and the shapes and structures are also very different. The design structure of most existing stretching machines is relatively complicated, with many components, and the cost and space are relatively large. Uneconomical

Chinese patent 201420347675.9 discloses an intelligent automatic strip traction device. The main body of the device is composed of three major parts, the first lifting frame and the second lifting frame, and the connection structure connecting the two lifting frames; its conveyor belt is also divided into three parts. The first and third sections are horizontal sections, and the second section in the middle is an inclined section. The problem with this structure is that the equipment has many components and a complex structure, and the length of the second section of the conveyor track is short, The large slope requires a greater driving force for the second section of the conveyor track, and it uses the sprocket to drive the conveyor track. The metal-to-metal friction between the sprocket and the conveyor track can be used in the process of pulling the plastic strip. The consumption and noise are relatively large; and, due to the use of cold water for cooling, as the heat continues to accumulate, the cold water turns into hot water, and the cooling effect is not good. The water needs to be changed continuously during the production process, so the water consumption is also large. In addition Because the rotating roller used to clamp the material strip is installed above the water tank through the adjustment screw and the support, once the adjustment is completed, the distance between the rotating roller and the conveying track will be relatively fixed. If the conveying track or the material strip is uneven, It will cause the gap between the roller and the conveyor belt to be too large or small, resulting in the state of clamping the material strip being too tight or too loose, resulting in the deformation of the material strip, or the phenomenon of machine jamming, which will affect the quality of the product and the normal operation of the equipment. And after a period of time, the adjustment screws at both ends of the roller will slowly shift, and at this time it is necessary to stop the machine again for adjustment, which is labor-intensive and time-consuming

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