KR-102960271-B1 - ERP-linked film manufacturing process automation system

Abstract

The present invention provides an ERP-linked film manufacturing process automation system comprising: a silo for storing raw materials; a suction device for transferring raw materials stored in the silo to a hopper system; an extrusion device for extruding raw materials supplied to the hopper system; a die forming device for forming raw materials discharged from the extrusion device into a film shape; a cooling device for cooling the film formed from the die forming device; a rotating roll for transferring the film cooled by the cooling device; a winding unit for fixing a winding roll to a support structure for winding the film transferred through the rotating roll; and an ERP control unit for integrally controlling the operation of the silo, the hopper system, the suction device, the extrusion device, the die forming device, the cooling device, the rotating roll, and the winding unit.

Inventors

• 최병향
• 최선웅

Assignees

• 한국프리팩 주식회사

Dates

Publication Date

20260507

Application Date

20250922

Claims (3)

1. In an ERP-linked film manufacturing process automation system, Silos for storing raw materials; A suction device for transferring raw materials stored in the above silo to a hopper system; An extrusion device for extruding raw materials supplied to the above-mentioned hopper system; A die forming device for forming a film shape from a raw material discharged from the above extrusion device; A cooling device for cooling the film formed from the above die forming device; A rotating roll for transporting a film cooled in the above cooling device; A winding unit for fixing a winding roll to a support structure for winding a film conveyed through the above-mentioned rotating roll; and It includes an ERP control unit that integrally controls the operation of the above silo, the above hopper system, the above suction device, the above extrusion device, the above die forming device, the above cooling device, the above rotating roll, and the above winding unit, and The above winding unit is, To prevent bubbles or wrinkles from occurring during the process in which the film conveyed through the above-mentioned rotating roll is wound onto the above-mentioned winding roll, the device includes a prevention member disposed on the back surface of the above-mentioned winding roll. The above prevention unit is, A corresponding member having a curved shape positioned to contact a portion of the outer surface of a film wound on the above-mentioned winding roll; A supporting member that supports the above-mentioned corresponding member from the ground; A coupling member that is extended and formed at each of the two ends of the corresponding member and fixed to the support structure; and It includes an anti-static member disposed on one side of the corresponding member to prevent static electricity generated when the film is wound onto the winding roll, and The above support member is, An ERP-linked film manufacturing process automation system having a plurality of grooves formed along a vertical length direction inside, weights inserted into the plurality of grooves to reinforce the support of the support member when the film winding amount increases, an opening/closing member installed at a position corresponding to the plurality of grooves on the outer wall of the support member to selectively open/close each groove, and a storage groove formed in the lower part of the support member to store the weights.
2. delete
3. In claim 1, The above anti-static member is, An ionizer bar positioned on the film entry side of the above-mentioned winding roll to neutralize the charge on the film surface using ions generated by corona discharge; A conductive coating layer formed on the surface of the corresponding member and having a surface resistance in the range of 10^6 to 10^9 Ω/□; and It includes a conductive fiber brush positioned at both ends of the winding roll, corresponding to the two edges of the film wound on the winding roll, and leaks static electricity through grounding. The above ionizer bar is fixedly installed by a support bracket that is extended and coupled to the lower end of the corresponding member, and the support bracket is equipped with an anti-detachment pad made of an elastic material to prevent the ionizer bar from detaching due to external vibration or impact. The above-mentioned prevention pad wraps around the outer surface of the above-mentioned ionizer bar to prevent slipping and detachment, and The above ionizer bar is linked to the above ERP control unit to automatically adjust ion balance and output, in an ERP-linked film manufacturing process automation system.

Description

ERP-linked film manufacturing process automation system The present invention relates to an ERP-linked film manufacturing process automation system. More specifically, the invention relates to an automation system that enables the integrated performance of automatic production plan generation, operation control at each process stage, real-time correction of winding quality, electrostatic discharge removal, and verification of product shipment procedures by automatically controlling all stages of a film manufacturing process—consisting of a silo, suction device, hopper system, extrusion device, die forming device, cooling device, rotating roll, and winding unit—in conjunction with an ERP control unit, from the raw material receiving stage to the final product shipment stage. Generally, the film manufacturing process involves a series of steps in which raw materials are stored in a silo, discharged from the silo and transferred to a hopper system using a suction device, mixed in the hopper system and supplied to an extrusion device, formed into a film shape using a die forming device after the raw materials are converted to a molten state in the extrusion device, and then transferred via a rotating roll to finally wind the solidified film after passing through a cooling device onto a winding roll. In this process, the operation of each device must be interconnected, and it is difficult to ensure product homogeneity unless various variables such as film thickness, width, tension, and winding quality are controlled simultaneously. However, conventional film manufacturing systems made it difficult to achieve integrated control—including the automatic generation of production plans, automatic correction of process conditions, winding quality control, and shipment verification—as each device operated independently or was limited to simple levels of control. For example, simple weight sensing or manual opening/closing methods were often applied between silo and hopper systems, making it difficult to switch the input line in real time when raw materials were changed. Furthermore, extrusion and die forming devices were controlled only under fixed conditions, failing to respond immediately to changes in raw material characteristics or the external environment, which could lead to uneven film thickness or thermal deformation. Furthermore, since the cooling system controls temperature and flow rate only within a fixed range, it is difficult to provide optimized cooling conditions tailored to the film's thickness or width. As a result, thermal deformation or micro-defects may occur on the film surface, and these defects subsequently magnify in the rotating rolls and winding section, leading to a degradation in the quality of the final product. In addition, wrinkles, bubbles, and misalignment frequently occur during the process of film transport or winding in the rotating rolls and winding sections. In particular, as the diameter of the winding roll increases, if tension correction is not properly performed, the winding quality becomes unstable, and consequently, the product defect rate increases. In conventional technology, there are many methods that simply correct winding tension and speed using motor output, which makes precise control difficult and fails to ensure the homogeneity of winding quality. Regarding the prevention section of the winding unit, conventionally, attempts were made to reduce film wrinkling by applying simple guide rolls or flat support plates, but the effect was limited because the structure did not match the curvature of the outer surface of the film. In addition, a composite configuration such as an ionizer bar, a conductive coating layer, or a conductive fiber brush capable of stably removing static electricity generated during winding was not provided, resulting in problems of adsorption, dust adhesion, and discharge damage to the film surface caused by static electricity. Furthermore, the structure of the support member was merely a simple fixed type; consequently, when the load became concentrated due to increased winding volume, the support capacity became insufficient, leading to structural deformation or vibration problems. In conventional technology, the concept of reinforcing load-bearing capacity through the insertion of weights or opening/closing members was not applied, often resulting in the durability and stability of the winding section reaching their limits. Additionally, since a separate vibration-absorbing member was not installed, vibrations caused by the rotation of the winding roll were transmitted to the corresponding member and anti-static member, causing a shortened device lifespan and a degradation of film quality. Problems also exist in terms of ERP control. Existing ERP integration methods were limited to production planning and inventory management, making it difficult to implement real-time process control linked to actual silos, suction devices, hopper systems, ex