Central heating and temperature control system for PU shoe sole casting production line

Abstract

The invention discloses a central heating and temperature control system for a PU shoe sole casting production line. The system comprises a computer control cabinet and raw material drying ovens, a heating heat insulation box is arranged on the raw material drying ovens, a feed barrel is arranged in a cavity of the heating heat insulation box, heating boards are arranged at the bottom of the cavity of the heating heat insulation box, a speed regulating motor drives a metering pump to conveying feed liquid in the feed barrel to a temperature control box, a mixing casting head is arranged at a discharging outlet of the temperature control box, the temperature control box and the speed regulating motor are electrically connected with the computer control cabinet, a sliding support is arranged at the upper end of the heating heat insulation box and provided with a rotary valve, and the temperature control box is connected with the rotary valve. A pipeline of the central heating heat insulation system is much shortened than that of the traditional mode, and part of the pipeline is located in the heat insulation box. The feed pipeline of the mode is not provided with heating wires and heat insulation layers, use is convenient, and the pipe blocking phenomenon is reduced. Meanwhile, the raw material drying ovens are arranged at the lower portion of a casting molding machine to be concentrated, and by the adoption of the central heating heat insulation mode, energy consumption is reduced obviously.

Description

technical field [0001] The invention relates to equipment for a PU shoe sole casting production line, in particular to a centralized heating temperature control system for a PU shoe sole casting production line. Background technique [0002] At present, the PU shoe sole pouring production line uses a decentralized heating temperature control system. The temperature control sensor of this heating recognition control system is set in the material tank, and the insulation of the filter, metering pump and material pipe is poor. Sanda, this kind of decentralized heat preservation system cannot stop working when it is working. The metering pump and heating heat preservation system must work. The material begins to solidify gradually, and the reason why the machine cannot be stopped is that the filter and the metering pump are metal parts, which dissipate heat quickly, and it is difficult to eliminate the temperature difference between the inside and outside. Similarly, the heatin...

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Problems solved by technology

[0002] At present, the PU shoe sole pouring production line uses a distributed heating temperature control system. The thermal insulation of the device, metering pump and material pipe is poor, and the heat dissipation is large. This decentralized thermal insulation system cannot stop working when it is working. The metering pump and heating and thermal insulation system must work. The reason is that the general use temperature of B material is 35 ℃ ~ 45 ℃, when the temperature is below 30 ℃, material B begins to solidify gradually, the reason why the machine cannot be shut down is that the filter and metering pump are metal parts, which dissipate heat quickly, and it is difficult to eliminate the temperature difference between inside and outside. Similarly, the heating of the material pipe It is also difficult to control the heat preservation; the filter is used to filter the sundries in the material, especially the crystallization of material B and the polymer formed by the reaction of material B and water in the air due to local freezing. The semi-solidified matter will affect the accuracy and reliability of B material injected into the mixing chamber, thus causing the disadvantage of imbalanced ratio

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