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A three-stage temperature-controlled rapid cooling method, system and product for extrusion

A rapid cooling and plastic product technology, applied in the field of extrusion cooling, can solve the problems of uncontrollable cooling effect, waste of energy, occupying a large space, etc., and achieve the effect of efficient and reliable temperature control, scientific and reasonable structure, and energy saving

Active Publication Date: 2019-02-26
东莞市长胜电线有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to form a small and uniform uneven texture (atomization effect) on the outside of the extruded product, rapid cooling is one of the better methods, but the traditional rapid cooling process generally uses long tanks to add cold water, which takes up a lot of space and wastes energy. , cannot make good use of the cold source, because the long tank carrying cold water does not have a good heat preservation effect, which will make the cold water continue to heat up in the normal temperature environment, so it is necessary to continuously replenish cold water to obtain low temperature, and this process is for The temperature of the cold water is also difficult to control and cannot meet the ideal process cooling parameter requirements
In addition, the cooling effect of this cold water tank is not obvious, because such a rapid cooling process does not immediately cool the extruded product immediately after it is extruded, and the delayed cooling seriously affects the cooling effect, which increases the unfavorable cooling effect. controlling
In addition, this cold water tank cooling process can only obtain a consistent surface treatment effect, and cannot meet the multi-stage effect requirements of long plastic products, that is, if long plastic products want to obtain several stages Different surface treatment effects (the degree of atomization in the front section, middle section, and rear section are different), cold water tank cooling cannot be achieved, because the temperature of the cold water in the cold water tank is consistent, and even if the cold water of different temperatures is replaced, it will not change. It cannot be replaced quickly, and it is difficult to achieve instant changes in temperature

Method used

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  • A three-stage temperature-controlled rapid cooling method, system and product for extrusion
  • A three-stage temperature-controlled rapid cooling method, system and product for extrusion
  • A three-stage temperature-controlled rapid cooling method, system and product for extrusion

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Embodiment 1

[0043] see Figures 1 to 2 , the three-stage temperature-controlled rapid cooling method for extrusion provided in this embodiment is characterized in that it includes the following steps:

[0044] 1) Set up a quick cooling device, which includes a nozzle fitting 1, a quick cooling base part 2 and a discharge adjustment part 3 arranged in sequence, and the three cooperate to form a quick cooling space 4. The nozzle fitting 1. The rapid cooling base part 2 and the discharge adjustment part 3 are both cylindrical members. The middle part of the rapid cooling base part 2 is penetrated, and the left and right sides of the penetration part are provided with stepped grooves, and the right side of the nozzle fitting 1 is provided with a ladder structure, which is embedded in the left step of the rapid cooling base part 2 In the groove, the sealing connection is carried out, and the left side of the discharge adjustment part 3 is provided with a ladder structure, which is embedded in...

Embodiment 2

[0067] see Figures 1 to 3 , this embodiment is basically the same as Embodiment 1, the difference is:

[0068] In step 1), the three-stage temperature-controlled rapid cooling system also includes a cold air transfer device, the cold air transfer device includes a cold air transfer chamber 24 and a temperature sensor 25 installed in the cold air transfer chamber 24, and the cold air transfer chamber 24 Respectively connect with the cold air delivery pipe 8 of the first section, the cold air delivery pipe 12 of the second section, the cold air delivery pipe 16 of the third section, and the cold air inlet 2a of the quick cooling device; in step 4), the following steps are also included: when required -10 °C to 0°C under rapid cooling conditions, the first section of cold air delivery valve 9, the second section of cold air delivery valve 13 and the second section of cold air recovery valve 19 are opened at the same time, and the temperature of -10°C in the first section of cold...

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Abstract

The invention discloses a three-section temperature control fast cooling method and system for extrusion molding and a product manufactured through the three-section temperature control fast cooling method for the extrusion molding. A dedicated fast cooling device is arranged. A fast cooling space is formed through a machine nozzle matched piece, a fast cooling base piece and a discharging adjusting piece. The structure of the dedicated fast cooling device is scientific and reasonable. Fast cooling is conducted instantly when the extrusion molded product is extruded, so that the efficiency is high, and the quality is good. The dedicated three-section temperature control fast cooling system is arranged. Three-section accurate temperature control fast cooling is achieved, multilevel cold air recycling is conducted, the cold air does not need to be directly discharged out, so that energy is saved, and environmental friendliness is achieved. In the fast cooling process, because a cold air source is adopted to pre-store the cold air, temperature control is more efficient, more reliable, accurate and timely and meets the demand for the ideal technology cooling parameters; and because the cold air source pre-stores the cold air, frequent start and stop of a cold air generating machine can be avoided. In addition, the dedicated three-section temperature control fast cooling system can meet the demand for the multi-section effect of a long-strip-shaped plastic product, and it is only needed to switch cold air at different temperatures for fast cooling in the fast cooling process.

Description

technical field [0001] The invention relates to extrusion cooling, in particular to a three-stage temperature-controlled rapid cooling method, system and product for extrusion. Background technique [0002] Due to its high efficiency, extrusion technology is widely used in various long plastic products, such as pipes, cables, sealing tapes and so on. Some products have special requirements for performance or outer tube. After extrusion, they often need subsequent processing, such as heat preservation, cooling, drying, moisture increase, etc. Among them, cooling is a more important subsequent processing process. one. Through the law of thermal expansion and cold contraction, cooling can accelerate the shrinkage and shaping of extruded products, and can modify its appearance and overall performance. In order to form a small and uniform uneven texture (atomization effect) on the outside of the extruded product, rapid cooling is one of the better methods, but the traditional r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C48/885B29C48/92B29C48/25
CPCB29C48/275B29C48/911B29C48/92B29C2948/92704Y02P70/10
Inventor 黎炜杰
Owner 东莞市长胜电线有限公司