設(shè)備結(jié)構(gòu)基礎(chǔ)?

Equipment structure foundation

滾壓復(fù)合機主要由放卷、復(fù)合輥組、加熱冷卻、收卷及控制系統(tǒng)構(gòu)成。放卷裝置平穩(wěn)放出塑料薄膜、紙張、金屬箔等原材料。復(fù)合輥組是核心，至少有一對光滑、耐磨的輥筒。加熱冷卻系統(tǒng)調(diào)控溫度，收卷裝置卷繞復(fù)合后的材料，控制系統(tǒng)精準調(diào)節(jié)輥筒轉(zhuǎn)速、溫度、壓力等參數(shù)。?

The rolling composite machine mainly consists of unwinding, composite roller group, heating and cooling, winding and control system. The unwinding device smoothly releases raw materials such as plastic film, paper, metal foil, etc. The composite roller set is the core, consisting of at least one pair of smooth and wear-resistant rollers. The heating and cooling system regulates the temperature, the winding device winds the composite material, and the control system precisely adjusts parameters such as roller speed, temperature, and pressure. ?

材料復(fù)合流程?

Material Composite Process

工作時，放卷裝置依序送出原材料至復(fù)合輥組。輥筒同步轉(zhuǎn)動，使材料緊密貼合，如塑料薄膜與紙張在復(fù)合輥擠壓下靠近。此時加熱系統(tǒng)升溫，不同材料復(fù)合溫度要求不同，像塑料薄膜與無紡布復(fù)合，常將溫度控制在塑料薄膜軟化點附近，使其表面軟化，在壓力作用下與無紡布融合，壓力促進分子擴散纏繞，增強復(fù)合強度。復(fù)合完成后，材料進入冷卻系統(tǒng)，風(fēng)冷或水冷使其降溫，軟化的材料重新固化，穩(wěn)定復(fù)合結(jié)構(gòu)。?

During operation, the unwinding device sequentially sends the raw materials to the composite roller group. The roller rotates synchronously to make the material tightly adhere, such as when plastic film and paper are pressed together by the composite roller. At this point, the heating system heats up, and different materials require different composite temperatures. For example, when composite plastic film with non-woven fabric, the temperature is often controlled near the softening point of the plastic film to soften its surface. Under pressure, it fuses with the non-woven fabric, promoting molecular diffusion and winding, and enhancing the composite strength. After the composite is completed, the material enters the cooling system and is cooled by air or water cooling. The softened material solidifies again to stabilize the composite structure. ?

關(guān)鍵技術(shù)參數(shù)影響?

Influence of key technical parameters

輥筒轉(zhuǎn)速關(guān)乎復(fù)合速度，過快復(fù)合不充分，過慢影響效率，包裝材料復(fù)合時，轉(zhuǎn)速一般每分鐘幾十轉(zhuǎn)到數(shù)百轉(zhuǎn)。溫度對復(fù)合質(zhì)量影響大，過高致材料變形、性能下降，過低復(fù)合強度不足，如鋁箔與聚乙烯薄膜復(fù)合，溫度控制在 120℃ - 150℃。壓力決定材料貼合程度，過小貼合差，過大易損壞材料或使設(shè)備負載大，實際需根據(jù)材料厚度、硬度等調(diào)節(jié)，壓力范圍通常在幾千克力每平方厘米到幾十千克力每平方厘米。

The rotational speed of the roller is related to the composite speed. If it is too fast, the composite speed will not be sufficient, and if it is too slow, it will affect efficiency. When packaging materials are composite, the rotational speed is generally tens to hundreds of revolutions per minute. Temperature has a significant impact on the quality of composite materials. If the temperature is too high, it can cause material deformation and performance degradation. If the temperature is too low, the composite strength is insufficient. For example, when aluminum foil and polyethylene film are composite, the temperature should be controlled between 120 ℃ and 150 ℃. Pressure determines the degree of material adhesion. If the adhesion is too small, it will result in poor adhesion. If it is too large, it may damage the material or increase the load on the equipment. In practice, it needs to be adjusted according to the thickness and hardness of the material. The pressure range is usually from a few kilograms of force per square centimeter to tens of kilograms of force per square centimeter.

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