A rapid prototyping extruder for pit tube

Abstract

The invention relates to a rapid forming and extruding machine for a pit tube. The rapid forming and extruding machine is composed of a supporting system, a rack system, a power system, an extrusion system, the guide systems and clamping systems. The middle of the top end of the rack system is fixedly connected with the supporting system through bolts, the supporting system is fixedly connected with the power system through bolts, and the power system is connected with the extrusion system through a pin shaft. The left and right end faces of the extrusion system are respectively provided withthe clamping systems, and the left and right end faces of the supporting system are fixedly connected with the guide systems respectively via the bolts. During work, the power system provides drivingforce for the extrusion system, the extrusion system moves along the radial direction under the guiding effects of the guiding systems, so that the pressing heads extrude the light tubes to form the concave pit tubes. Compared with the prior art, an extrusion plate adopts the T-shaped groove principle, and the extrusion parameters can be adjusted without detaching other assemblies when the pressure head is replaced or the extrusion distance is adjusted. Multiple groups of pressure heads are adopted to simultaneously extrude the light tubes, so that the pit heat transfer tube is low in production cost and high in processing and manufacturing efficiency.

Description

technical field [0001] The invention relates to the field of processing and forming of heat transfer tubes, in particular to a rapid forming extrusion machine for dimpled tubes. Background technique [0002] Heat transfer is a very common natural phenomenon and a common process in industries such as power, nuclear energy, electronics, transportation, refrigeration, chemical, petroleum, aerospace, etc. The heat exchanger occupies a key position in the above-mentioned industries. The heat exchanger is not only an indispensable part to ensure the normal operation of the entire engineering equipment, but also occupies an important share in the entire project in terms of metal consumption, power consumption and capital investment. . Taking a power plant as an example, if the boiler is also used as heat exchange equipment, the capital investment of the heat exchanger accounts for about 70% of the total investment of the power plant; in petrochemical industry, the investment of th...

AI Technical Summary

Problems solved by technology

However, although there are many kinds of heat transfer tube processing and manufacturing devices, there are currently few extrusion molding devices suitable for dimpled heat transfer tubes.

[0005] However, in recent years, some dimpled pipe manufacturing devices have been disclosed in China, such as: Patent No. "CN2017106146693" discloses a stamping-type industrial high-efficiency pipe forming table. Two rows of dimples, no multiple dimples can be formed on the same section

Patent No. "CN2017106146640" discloses a multi-cylinder type dimple heat transfer tube extrusion molding device. When the device adjusts the dimple spacing, it needs to disassemble the device and then replace the extrusion plate, so the dimple spacing parameter adjustment operation is complicated

Patent No. "CN201710614666X" discloses a staggered trachea heat transfer tube extrusion molding device, which can only form 6 pits (that is, one pitch) at a time, so the production efficiency is low and the production cost is high

Patent No. "CN2017106146585" discloses a wedge-type dimpled heat transfer tube extrusion molding device, which also has the problem of inconvenient adjustment of dimple spacing

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