CN106393473A - 一种具有密封结构的热熔体切粒模板 - Google Patents

一种具有密封结构的热熔体切粒模板 Download PDF

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Publication number
CN106393473A
CN106393473A CN201610950043.5A CN201610950043A CN106393473A CN 106393473 A CN106393473 A CN 106393473A CN 201610950043 A CN201610950043 A CN 201610950043A CN 106393473 A CN106393473 A CN 106393473A
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annular
hot melt
die plate
narrow
heat
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刘京澎
陈有卿
张海军
刘洪运
管浩宇
刘岩
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LIAONING RUNDE RUBBER & PLASTIC SCIENCE & TECHNOLOGY Co Ltd
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LIAONING RUNDE RUBBER & PLASTIC SCIENCE & TECHNOLOGY Co Ltd
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Priority to CN201610950043.5A priority Critical patent/CN106393473A/zh
Publication of CN106393473A publication Critical patent/CN106393473A/zh
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • B29B9/065—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion under-water, e.g. underwater pelletizers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/582—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/826—Apparatus therefor
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/3001—Extrusion nozzles or dies characterised by the material or their manufacturing process
    • B29C48/3003—Materials, coating or lining therefor
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

本发明涉及一种具有密封结构的热熔体切粒模板，包括模板本体、设于模板本体上的环形热熔体腔、与环形热熔体腔相通的环形出料孔区域、靠近环形热熔体腔布置的内、外环状伴热通道、靠近环形出料孔区域布置在模板本体上的隔热垫和护板，所述隔热垫和护板与模板本体间形成横截面呈窄U形的环形缝隙，其特征在于：在临近出料孔区域的横截面呈窄U形的环状缝隙的开口端设置主弹性密封圈，在远离出料孔区域的横截面呈窄U形的环状缝隙的开口端设置辅助弹性密封圈。结构简单、使用可靠，彻底避免了横截面呈窄U形的环形缝隙中水转换成水蒸汽带走大量热量这一现象的发生。

Description

一种具有密封结构的热熔体切粒模板
技术领域
本发明涉及用于对PP、PE和EVA等热熔体进行水下切粒的热熔体切粒模板，特别是一种具有密封结构的热熔体切粒模板。
背景技术
热熔体切粒模板操作性能的好坏直接影响到颗粒产品均匀度和对热熔体切粒模板伴热的能量消耗，要保证热熔体切粒模板优良的操作性能和节约伴热能量消耗，有必要采取有效的隔热措施。现有的做法通常是：在模板本体上未设有出料孔的区域安装隔热垫和护板，并利用螺钉紧固。但由于实际安装的要求，隔热垫和护板与切粒模板本体间会形成横截面呈窄U形的环形缝隙。操作中，环形缝隙的模板本体侧处于高温状态，水与其直接接触后转换成水蒸汽蒸发，使模板本体降温。其存在如下问题：造成出料孔所处区域产生温度梯度，使出料孔出料不均，产品合格率降低；同时也增加了伴热能量消耗。
发明内容
本发明的目的是为了提供一种解决上述问题的具有密封结构的热熔体切粒模板，结构简单、使用可靠，彻底避免横截面呈窄U形的环形缝隙中水转换成水蒸汽带走大量热量这一现象的发生。
本发明的技术方案是：
一种具有密封结构的热熔体切粒模板，包括模板本体、设于模板本体上的环形热熔体腔、与环形热熔体腔相通的环形出料孔区域、靠近环形热熔体腔布置的内、外环状伴热通道、靠近环形出料孔区域布置在模板本体上的隔热垫和护板，所述隔热垫和护板与模板本体间形成横截面呈窄U形的环形缝隙，其特征在于：在临近出料孔区域的横截面呈窄U形的环状缝隙的开口端设置主弹性密封圈，在远离出料孔区域的横截面呈窄U形的环状缝隙的开口端设置辅助弹性密封圈。
上述的具有密封结构的热熔体切粒模板，所述主弹性密封圈和辅助弹性密封圈的横截面呈圆形，所述护板或/和模板本体上设有对应主弹性密封圈和辅助弹性密封圈的凹槽，以防松脱，且密封效果更好。
上述的具有密封结构的热熔体切粒模板，所述护板由设于模板本体中心且边沿靠近环形出料孔区域的圆形护板和设于环形出料孔区域外周的环形护板组成，所述圆形护板底部设有圆形隔热垫，所述环形护板底部设有环形隔热垫。
上述的具有密封结构的热熔体切粒模板，所述主弹性密封圈的数量为两个，所述辅助弹性密封圈的数量为一个。
本发明的有益效果是：
1、由于设置了主弹性密封圈和辅助弹性密封圈，防止了冷却水进入到横截面呈窄U形的环状缝隙中，避免了冷却水与模板本体接触造成热量损耗，从而节约伴热能源。
2、避免了出料孔所处区域产生温度梯度，颗粒产品均匀度好、合格率高。
3、密封结构简单、安装容易，维护方便。
附图说明
图1是本发明的局部剖视图；
图2是图1中A部放大图；
图3是图1中B部放大图。
图中：1.模板本体、2.螺钉、3.隔热垫、4.护板、5.安装孔、6.主弹性密封圈、7.内、外环状伴热通道、8.环形热熔体腔、9.环形出料孔区域、10.环形缝隙、11.环形缝隙、12.辅助弹性密封圈。
具体实施方式
如图1-图3所示，该具有密封结构的热熔体切粒模板，包括模板本体1、设于模板本体1上的环形热熔体腔8、与环形热熔体腔8相通的环形出料孔区域9、靠近环形热熔体腔8布置的内、外环状伴热通道7、靠近环形出料孔区域9布置在模板本体1上的隔热垫3和护板4，模板本体1另设有安装孔5，所述护板4利用螺钉2将隔热垫3固定于模板本体1上，所述隔热垫3和护板4与模板本体1间形成横截面呈窄U形的环形缝隙10、11。在临近环形出料孔区域9的横截面呈窄U形的环状缝隙10的开口端设置主弹性密封圈6，在远离环形出料孔区域9的横截面呈窄U形的环状缝隙11的开口端设置辅助弹性密封圈12。
本实施例中，所述护板4由设于模板本体1中心且边沿靠近环形出料孔区域9的圆形护板和设于环形出料孔区域9外周的环形护板组成，所述圆形护板底部设有圆形隔热垫，所述环形护板底部设有环形隔热垫。所述主弹性密封圈6的数量为两个，所述辅助弹性密封圈12的数量为一个。所述主弹性密封圈6和辅助弹性密封圈12的横截面呈圆形，所述护板4或/和模板本体1上设有对应主弹性密封圈6和辅助弹性密封圈12的凹槽，以防松脱，且密封效果更好。

Claims (4)

1.一种具有密封结构的热熔体切粒模板，包括模板本体、设于模板本体上的环形热熔体腔、与环形热熔体腔相通的环形出料孔区域、靠近环形热熔体腔布置的内、外环状伴热通道、靠近环形出料孔区域布置在模板本体上的隔热垫和护板，所述隔热垫和护板与模板本体间形成横截面呈窄U形的环形缝隙，其特征在于：在临近出料孔区域的横截面呈窄U形的环状缝隙的开口端设置主弹性密封圈，在远离出料孔区域的横截面呈窄U形的环状缝隙的开口端设置辅助弹性密封圈。
2.根据权利要求1所述的具有密封结构的热熔体切粒模板，其特征在于：所述主弹性密封圈和辅助弹性密封圈的横截面呈圆形，所述护板或/和模板本体上设有对应主弹性密封圈和辅助弹性密封圈的凹槽。
3.根据权利要求1所述的具有密封结构的热熔体切粒模板，其特征在于：所述护板由设于模板本体中心且边沿靠近环形出料孔区域的圆形护板和设于环形出料孔区域外周的环形护板组成，所述圆形护板底部设有圆形隔热垫，所述环形护板底部设有环形隔热垫。
4.根据权利要求1所述的具有密封结构的热熔体切粒模板，其特征在于：所述主弹性密封圈的数量为两个，所述辅助弹性密封圈的数量为一个。
CN201610950043.5A 2016-10-27 2016-10-27 一种具有密封结构的热熔体切粒模板 Pending CN106393473A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4049773A4 (en) * 2019-10-21 2023-10-18 The Japan Steel Works, Ltd. DIE, DIE MANUFACTURING METHOD, EXTRUDER AND PELLET MANUFACTURING METHOD

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043378A1 (en) * 1980-01-08 1982-01-13 Trw Inc. Internally insulated extrusion die
US4856974A (en) * 1986-05-22 1989-08-15 Rogers Tool Works, Inc. Internally insulated extrusion die
EP1413413A1 (de) * 2002-10-22 2004-04-28 Gerhard Hehenberger Granulierlochplatte
US20060068052A1 (en) * 2004-04-28 2006-03-30 Johannes Remili Arrangement with an extrusion die of an extruder
AT508894A4 (de) * 2010-06-22 2011-05-15 Hehenberger Gerhard Vorrichtung zum granulieren von kunststoff
US20150132424A1 (en) * 2013-11-08 2015-05-14 Kennametal Inc. Extrusion Die Plate Assembly for a Pelletizer System

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043378A1 (en) * 1980-01-08 1982-01-13 Trw Inc. Internally insulated extrusion die
US4856974A (en) * 1986-05-22 1989-08-15 Rogers Tool Works, Inc. Internally insulated extrusion die
EP1413413A1 (de) * 2002-10-22 2004-04-28 Gerhard Hehenberger Granulierlochplatte
US20060068052A1 (en) * 2004-04-28 2006-03-30 Johannes Remili Arrangement with an extrusion die of an extruder
AT508894A4 (de) * 2010-06-22 2011-05-15 Hehenberger Gerhard Vorrichtung zum granulieren von kunststoff
US20150132424A1 (en) * 2013-11-08 2015-05-14 Kennametal Inc. Extrusion Die Plate Assembly for a Pelletizer System

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4049773A4 (en) * 2019-10-21 2023-10-18 The Japan Steel Works, Ltd. DIE, DIE MANUFACTURING METHOD, EXTRUDER AND PELLET MANUFACTURING METHOD
US12594709B2 (en) 2019-10-21 2026-04-07 The Japan Steel Works, Ltd. Die, method of manufacturing die, extruder and method of manufacturing pellet

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