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250精密預(yù)成型機(jī)生產(chǎn)銷售

寧波市精密預(yù)成型機(jī)廠家

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詳細(xì)信息（250精密預(yù)成型機(jī)生產(chǎn)銷售）

JY250 Precision Preformer:

Precision preformer is a kind of high-efficiency and high-precision device for manufacturing rubber blank. It can be used in combination with a wide range of rubber material in extruding rubber blank of mid to high hardness and of iicate shapes such as circle and solid figures. Owing to its high precision volume and low air content, it is capable of producing products ranging from rubber sundries, sealing members, inflating valves, tennis balls and shoe soles.

Structure ioduction
The precision preformer is coed of a ram extruder and a rubber blank cutter attached to the ram head. It is also equipped with hydraulic, vacuum, heating, pneumatic and electrical system. While in operation, the first step is to open the ram head and add the preheated prehensile rubber material into the machine from anterior part of the barrel. After that, the ram head is to be closed to adjust the extruding and cutting speed (volume cool chart is provided with the machine). Eventually, after vacuumization and cutting, the rubber blank with precise weight will then be obtained.
1. Extruding device: It is coed of hydraulic cylinder, batching barrel and
ram head.
2. Hydraulic device: This device is selected with high-pressure gear pump and YUKEN flow valve imported from Japan. Hydraulic oil in hydraulic cylinder is coolled by the flow valve and the pressure difference prior to and after throttling is coolled at a constant value so as to ensure the precise weight of the rubber blank extruded. This device is equipped with cooling system driven by 2 sets of hydraulic axletrees which can make reasonable and effective use of energy and cool the temperature of the hydraulic oil.
3. Pneumatic device: It is used to open and close the ram head as well as cool the movements of other devices, for example, the cylinder.
4. Vacuumizing system: Before extruding and cutting of rubber material, the vacuumization aims at eliminating the air remained inside the barrel and the ram head as well as the gas contained in the rubber material so as to improve the quality of sulfur products to be produced in the following process.
5. Heating system: With the adoption of water circulation heating method, the temperature is coolled and displayed by the digital thermostat which can effectively maintain the constant temperature of the ram head and the barrel.
6. Cutting device: It is coed of frame, electromotor and deceleration system, which can conduct speed transmission via four-speed motor gearbox and frequency conversion motor. In addition, there is also a transmission system installed under the frame.
結(jié)構(gòu)簡介
精密預(yù)成型機(jī)主要由一臺(tái)柱塞式擠出裝置和一套裝在機(jī)頭上的膠坯切割裝置組成，此外配有液壓系統(tǒng)、真空系統(tǒng)、加熱系統(tǒng)、氣動(dòng)系統(tǒng)和電氣系統(tǒng)。精密預(yù)成型機(jī)工作時(shí)，打開機(jī)頭，將經(jīng)過預(yù)熱打卷的膠料從料筒前部裝入，再關(guān)閉機(jī)頭，調(diào)定擠出速度和切割速度（隨機(jī)提供體積控制表），抽真空、切割，即可得到重量精準(zhǔn)的膠坯。

擠出裝置：由液壓缸、料筒、機(jī)頭等組成。
液壓裝置：選用高壓齒輪泵。流量閥選用日本進(jìn)口YUKEN(油研)產(chǎn)品。液壓缸的液壓油由流量閥控制，節(jié)流前后的壓差閥始終控制在一個(gè)恒定值，保證準(zhǔn)確的控制擠切膠坯的重量。
氣動(dòng)裝置：用來控制機(jī)頭開、關(guān)（閉）汽缸等動(dòng)作。
抽真空系統(tǒng)：在擠切膠料之前先行抽真空，排除機(jī)筒、機(jī)頭內(nèi)部的空氣和膠料中夾雜的氣體，從而提高下工序硫化制品的質(zhì)量。
加熱系統(tǒng):采用水循環(huán)加熱方式，溫度由數(shù)字式溫控器控制和顯示。保證機(jī)頭、料筒的溫度恒定。
切割裝置：由機(jī)架、電機(jī)、減速系統(tǒng)組成?？蛇x擇變頻電機(jī)進(jìn)行無級(jí)調(diào)速，也可選擇四速電機(jī)或變速箱變速。在機(jī)架下部安裝有傳送裝置。

JY技術(shù)參數(shù)

項(xiàng)目名稱	單位	JY150	JY200	JY250
料筒內(nèi)徑	mm	150	200	250
總功率	kw	16	16	19
油缸壓力	Mpa	36.8	20.7	17
料筒溫度	℃	95	95	95
口型直徑	mm	80	125	190
膠坯重量范圍	g	0.3～100	0.3～200	0.3～2000
膠坯重量精度	﹪	±1.0	±1.0	±1.0
一次裝膠量	kg	8～10	20～25	60～70
切刀轉(zhuǎn)速	r∕min	35～300	35～300	24～300
外形尺寸（L×W×H）	m	4×1.1×1.7	4×1.1×1.7	5×1.1×1.7
重量	T	3	3	4