CN201895407U - Bopp薄膜生产线的铸片除水系统 - Google Patents

Bopp薄膜生产线的铸片除水系统 Download PDF

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Publication number
CN201895407U
CN201895407U CN2010206549683U CN201020654968U CN201895407U CN 201895407 U CN201895407 U CN 201895407U CN 2010206549683 U CN2010206549683 U CN 2010206549683U CN 201020654968 U CN201020654968 U CN 201020654968U CN 201895407 U CN201895407 U CN 201895407U
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Prior art keywords
water removal
roll
water
roller
bopp
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Expired - Fee Related
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CN2010206549683U
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English (en)
Inventor
张奇峰
朱小军
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Anhui Guofeng Plastic Industry Co Ltd
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Anhui Guofeng Plastic Industry Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
    • B29C48/917—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means by applying pressurised gas to the surface of the flat article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

本实用新型涉及一种BOPP薄膜生产线的铸片除水系统，包括电晕辊、传动辊、气刀和水槽，电晕辊置于水槽中，在所述水槽上方的传动辊相对位置设除水压辊，所述除水压辊通过气缸控制。所述除水压辊采用橡胶制作。本实用新型由于设置了除水压辊，所有经过除水压辊的铸片都受到其挤压，加之除水压辊是橡胶制作的还存在一定的柔软性和吸附性，因此经过除水压辊的铸片一般只带有少量的水分，加上气刀的风量再进行吹扫便基本能除尽铸片的带水。

Description

BOPP薄膜生产线的铸片除水系统
所属的技术领域 
本实用新型涉及聚丙烯薄膜（简称BOPP薄膜）生产线中的装置，具体涉及BOPP薄膜生产线的铸片除水系统。
背景技术   现有的BOPP薄膜生产线铸片除水设备自身存在一定设计缺陷，在铸片除水方面就依赖四把气刀吹水，其能力明显不足，见图1。造成生产较薄的膜或生产线速度在300m/min时，铸片带水严重，影响薄膜外观品质。长期制约着产品质量的提升和生产的稳定性。260多度高温熔体从挤出机到模头挤出的塑料铸片，首先要经过冷凝水冷却，然后进入拉伸工序。然而，由于“铸片除水不净”，它带着水渍进入纵向拉伸段，就容易造成辊筒污染，进而造成薄膜划伤，产出大量次品，（如白擦痕、斜向擦痕等）甚至是破膜，严重影响生产效益。在这种情况下，有时只能保持较低的运转速度运行，降低了单位产能。因为机械转动的速度越快，带上来的水渍会越多，产品被划伤也就越多。尤其是此种情况存在着不稳定性，极易造成产品的批量降级。
实用新型内容   针对上述现有技术中存在的问题，本实用新型的目的在于提供一种BOPP薄膜生产线的铸片除水系统，其可使铸片除水干净，不会带着水渍进入纵向拉伸段。
本实用新型为实现其目的所采取的技术方案： 一种BOPP薄膜生产线的铸片除水系统，包括电晕辊、传动辊、气刀和水槽，电晕辊置于水槽中，在所述水槽上方的传动辊相对位置设除水压辊，所述除水压辊通过气缸控制。
由上技术方案可知，由于设置了除水压辊，所有经过除水压辊的铸片都受到其挤压，加之除水压辊是橡胶制作的还存在一定的柔软性和吸附性。因此经过除水压辊的铸片一般只带有少量的水分，加上气刀的风量再进行吹扫便基本能除尽铸片的带水。
附图说明
    以下结合附图和具体实施方式对本实用新型进一步详细说明。
图1是现有技术中的铸片除水系统结构示意图；
图2是本实用新型结构示意图；
图3是铸片除水状态简化示意图。
图中1、气刀， 2、除水压辊，3、气缸，4、铸片，5、传动辊，6、水槽，7、电晕辊。
具体实施方式
参见图2、3，本实用新型包括电晕辊7、传动辊5、气刀1和水槽6，电晕辊7置于水槽6中，在所述水槽6上方的传动辊5相对位置设除水压辊2，除水压辊2可采用橡胶或塑料制成。所述除水压辊2与气缸3连接，通过气缸3控制除水压辊2对铸片施加的压力。
本实用新型保证了生产线速度开到300m/min时的除水性能，提高了产品质量和成品率。从生产情况看，加装除水压辊后，膜面因除水不尽造成擦痕至少比改造前减少3倍。 平均每月拉伸破膜比改造前减少了10次。

Claims (2)

1.一种BOPP薄膜生产线的铸片除水系统，包括电晕辊、传动辊、气刀和水槽，电晕辊置于水槽中，其特征在于：在所述水槽上方的传动辊相对位置设除水压辊，所述压辊通过气缸控制。
2.根据权利要求1所述的BOPP薄膜生产线的铸片除水系统，其特征在于在所述除水压辊采用橡胶制作。
CN2010206549683U 2010-12-13 2010-12-13 Bopp薄膜生产线的铸片除水系统 Expired - Fee Related CN201895407U (zh)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103028582A (zh) * 2011-09-30 2013-04-10 武藏野机械有限公司 薄膜状工件的除水系统
CN103331837A (zh) * 2013-07-17 2013-10-02 佳施加德士(苏州)塑料有限公司 一种水槽除水尼龙辊
CN112944858A (zh) * 2021-03-31 2021-06-11 深圳市新嘉拓自动化技术有限公司 一种高效除清洁剂的干燥装置及方法
CN115008731A (zh) * 2022-08-05 2022-09-06 山东联盈塑料制品有限公司 一种亚光膜表面电晕处理装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103028582A (zh) * 2011-09-30 2013-04-10 武藏野机械有限公司 薄膜状工件的除水系统
CN103331837A (zh) * 2013-07-17 2013-10-02 佳施加德士(苏州)塑料有限公司 一种水槽除水尼龙辊
CN112944858A (zh) * 2021-03-31 2021-06-11 深圳市新嘉拓自动化技术有限公司 一种高效除清洁剂的干燥装置及方法
CN112944858B (zh) * 2021-03-31 2023-12-22 深圳市新嘉拓自动化技术有限公司 一种高效除清洁剂的干燥装置及方法
CN115008731A (zh) * 2022-08-05 2022-09-06 山东联盈塑料制品有限公司 一种亚光膜表面电晕处理装置

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