Jointing die for plastic hose extruder

Abstract

The invention discloses a jointing die for a plastic hose extruder, which relates to the plastic hose extruders. The jointing die is provided with a guide die core, a guide die sleeve, a discharge die lip and a discharge die core. An exhaust hole is arranged in the guide die core; the outer surface of the guide die core is provided with a flow guide channel; the rear part of the flow guide channel consists of two isolated diversion channels; the front part of the flow guide channel is an annular confluent channel; the two diversion channels are communicated with a feed hole respectively; the guide die sleeve is sleeved on the guide die core; the rear end of the guide die sleeve is fixedly connected with the guide die core; a guide gap is reserved through the depth of the flow guide channel; the rear end of the discharge die lip is fixedly connected with the front end of the guide die sleeve; the rear end of the discharge die core is fixedly connected with the front end of the guide die core; the discharge die lip is sleeved on the discharge die core; a discharge gap is reserved between the inner surface and the outer surface of the discharge die lip and matched and communicated with the guide gap; and an exhaust hole is arranged in the discharge die core, and is communicated with the exhaust hole in the guide die core. The jointing die can differentiate the natural color of a part of the wall of a hose from that of the rest part of the wall, has a good anti-counterfeiting effect and can obviously reduce the printing cost.

Description

technical field [0001] The present invention relates to a plastic hose extruder, and more particularly to a joint die for a plastic hose extruder. Background technique [0002] The hoses extruded by ordinary plastic hose extruders are all hoses of the same color, and then the relevant logos are printed on the surface of the hoses to form a finished product. Because there are still many fake and inferior products, if you just make a fuss about the printed logo, it is easy to be counterfeited. How to effectively prevent counterfeiting has become a matter of great concern in the industry. At present, there are also hoses with different colors injected into the production materials. Generally, a color line different from the overall color of the hose is formed on the outer surface of the hose. Although this is easy to distinguish, it is easy to imitate and has limited anti-counterfeiting effects. In addition, since the surface of the hose needs to be printed with the base colo...

AI Technical Summary

Problems solved by technology

This patent can only coat the outer surface of the plastic hose with lines that are different from the overall color of the hose, and it cannot be combined into a whole from two raw materials of different natural colors (that is, the natural color of a part of the tube wall of the hose and the color of the remaining part of the tube wall Natural color is different), this is because the structural function of the mold is limited

Images