Heat treatment system of electric heating reflection oven tunnel type

Abstract

The invention relates to the technical field of a heat treatment device of an automotive brake gasket, in particular to a heat treatment system of electric heating reflection oven tunnel type. The invention solves the technical problems that the traditional design is not reasonable enough, the heat treatment effect is poor and the like. The system comprises a rack on which an oven is arranged, a charging hole and a discharging hole are respectively arranged at two ends of the oven, a driving shaft and a driven shaft are respectively arranged at two ends of the rack, annular conveyer belts pass through the oven from the charging hole to the discharging hole, and the distance between two adjacent annular conveyer belts is less than the width of a frame which is used for depositing work pieces. Compared with the prior art, the heat treatment system of electric heating reflection oven tunnel type has the advantages of: (1) reasonable design, simple and compact structure, high mechanical strength, and time and energy saving; (2) steady service behavior, less energy wastage, and low working noise; (3) good heat treatment effect, high product quality, safety and reliability.

Description

technical field [0001] The invention relates to the technical field of heat treatment devices for automobile brake linings, in particular to an electric heating reflective drying tunnel type heat treatment system. Background technique [0002] In the prior art, the heat treatment process of centralized packing of automobile brake linings is as follows: put the loading basket into the rail car and send it into the oven, close the oven, start the fuel heater to burn and heat, and send the hot air into the oven continuously through the blower. The hot air sent into the oven is agitated and circulated by the fan to distribute the heat evenly, so that the products are conducted from the outside to the inside and gradually heat up to the required heat treatment temperature. Eight temperature measuring points are installed on both sides of the oven. It takes about 4-5 hours to raise the temperature to 160°C in summer, and 6-7 hours to raise the temperature to 160°C in winter. It t...

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Problems solved by technology

[0003] The disadvantages of the above centralized heat treatment method are: 1. Due to the concentrated stacking of products, the overall volume increases, and each product is heated by mutual conduction from the outside to the inside, so the heat energy utilization efficiency is low and the heating time is long

2. Since the hot air cannot directly heat each product, it depends on the mutual conduction heating of the products, so the products on the surface are heated for a long time, and the products inside are heated for a short time, which seriously affects the heat treatment quality of the products and greatly reduces the performance of the products.

3. Due to the defects of the hot air circulation dead angle that the oven cannot overcome, it is generally difficult to control the temperature difference below ±10°C, that is to say, the temperature difference is often above 16°C, or even exceeds 20°C, thus affecting the heat treatment effect

4. The turnover of products is large. One oven can process 5,000 or even tens of thousands of pieces at a time. According to the current 20,000 pieces / day output of the company, the heat treatment process alone requires more than 40,000 pieces of WIP, and the average commodity value is 10 yuan / piece. According to calculations, the working capital occupied by the heat treatment process alone needs 400,000 yuan per day, which has caused great financial pressure on the company.

5. Two special workers and forklifts are required for loading, unloading and transshipment, which increases the production cost

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