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Introduction to Hubei Light Machinery Development in Recent Three Years
Hubei Light Industry Machinery Co., Ltd. (hereinafter referred to as "Hubei Light Machinery") is located in Wuhan, China, the central city of the central region, which is the thoroughfare of nine provinces. It is a professional backbone enterprise producing plastic extrusion blow film production lines in China. The company has introduced complete sets of German manufacturing equipment and advanced technology. Through decades of digestion, absorption and innovation, it has formed a professional plastic machinery manufacturer integrating R&D, design and manufacturing, with an annual production capacity of 200 sets.
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High speed and high productivity die head
The relationship between melt flow rate, flow rate and cavity pressure inside the die was calculated by mathematical method, as well as the disturbance of the whole melt flow caused by the differential flow produced by coextrusion of raw materials with different viscosities.
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Automatic Control Feeding System for Longitudinal Uniformity
Automatic Control Feeding System for Longitudinal Uniformity The system will set the set extrusion amount and the actual extrusion amount of the extruder at a fixed time, detect the dynamic value, set and adjust the motor speed at a fixed time using the following and decreasing mathematical control model (i.e., the following control principle), and realize the constant extrusion amount. Due to the good constant torque characteristics of the traction motor (steady state accuracy of 0.5%), there is no change in the extrusion amount and traction speed of the film during the bubble forming and traction process, and the film is wound up in a small tension or constant tension without expansion. Ensure accurate dimensions, stable physical properties and the proportion of raw materials between layers of multi-layer models. It also makes a small amount of precious raw materials precise and controllable. It expands the space for high-quality films to be used in engineering or more extensive fields. It can better meet the use requirements of various types of high-speed printing, improve product value and increase economic benefits.
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Taper Calculation of Winding Tension Control
Taper calculation is aimed at the gradual attenuation of the control tension in the winding process. Its principle is that the tension will slowly decrease as the winding diameter gets bigger and bigger, so as to ensure that the larger the winding diameter is, the larger the area is, and the inconsistent cold and hot shrinkage of the film will lead to the phenomenon that the outer side is locked inside. In this way, the larger the film is rolled, the better it should be brushed, and the more the coil core is, the less it can be used.
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Three in one center winding It is a new type of winding mechanism developed by our company in recent years. It has three forms of winding functions: active, passive and gap. It has two mechanical transmission characteristics of constant power and constant torque. It is suitable for film coiling with high requirements on different physical strength, density, hardness and appearance. The coiling weight and the diameter of the film coil increase exponentially. The organic application of three functions and two characteristics has produced many coiling methods. The high quality of finished coiling products is idealized. Combined with the existing automatic core changing, unwinding, automatic flying knife cutting, automatic slitting, scrap recycling and other devices, the material receiving system can complete the production task accurately and easily in an efficient and optimal way.
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C-type automatic winding Type C winding is an upgrade of automatic winding. Its stability is better, when replacing the air expansion shaft, when rolling upward, it will not fall off; The operation mode of the winding flying knife is changed, so that its operation is ensured to be air tight and more stable.
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Self adhesive film blowing machine
SGXM－2400 × 3 Three layer co extrusion upper traction and internal cooling film blowing production unit (self adhesive film) Main technical parameters 1. Product specification: width 2100mm, thickness 0.030 ～ 0.120mm 2. Applicable raw materials: LDPE, LLDPE, mPE, EVA and mixture 3. Product quality: film thickness and limit deviation 0.030 ～ 0.040mm ≤± 10% 0.041～0.080mm≤±9% 0.080～0.120mm≤±8% 4. Total installed power: about 230KW 5. Maximum output: about 300kg/h 6. Overall dimension (L × B × H）：10.5 × seven point two five × 12.00m 7. Total weight of equipment: about 28 tons
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SGXM-1800 × The five layer co extrusion high barrier film energy-saving blow molding unit is composed of five single screw extruders and DGXM-1800 auxiliary machines. ⑴. The main engine is driven by direct drive high torque motor (water-cooled type) and its driver for stepless speed regulation; ⑵. The die head adopts the five layer coextrusion cone superposed spiral die head with international advanced new runner technology; ⑶. The main machine and die head shall be heated in an efficient and energy-saving way; (4) The upper traction rotating device adopts direct drive horizontal ± 360 ° reciprocating rotation; (5) The internal cooling system (IBC) uses a three-point ultrasonic probe to automatically measure and control the size of the membrane bubble; (6) Configure a new aluminum alloy electric squirrel cage foam stabilizer; (7) Configure electric herringbone plate (aluminum guide roller adopts Ф 50 with stiffeners); (8) Configure ultrasonic automatic correction device; (9) Configure the central winder (active, passive and gap winding); (10) Configure the automatic thickness measurement system and automatic wind ring regulating system (with its own control system) of German PC Company; (11) The control system adopts Mitsubishi PLC centralized control technology.
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2010 Hubei Light Machinery Seven storey Co extrusion Equipment Exhibition
The company's president Qiu introduced the company's development in recent years. Huang Guanwen, general manager of Chongqing Wannian Packaging Company, Dongguan Zhangmutou Baizhou Plastic Factory, and Zhou Yajun, general manager of Guangzhou Changjian Medical Packaging Company, warmly discussed with guests
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