CN105524373A - 热塑性弹性体输送带切边废料的应用及三角带和制备方法 - Google Patents

热塑性弹性体输送带切边废料的应用及三角带和制备方法 Download PDF

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CN105524373A
CN105524373A CN201511009968.1A CN201511009968A CN105524373A CN 105524373 A CN105524373 A CN 105524373A CN 201511009968 A CN201511009968 A CN 201511009968A CN 105524373 A CN105524373 A CN 105524373A
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林铭昭
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Abstract

本发明公开一种热塑性弹性体输送带切边废料的应用及三角带和制备方法,将所述热塑性弹性体输送带切边废料用于制备三角带。利用热塑性弹性体输送带切边废料的长条和抗撕裂强度好的特点,将热塑性弹性体输送带切边废料用做三角带的抗拉层,不仅解决了切边废料的回收处理问题,还降低了三角带的生产成本。

Description

热塑性弹性体输送带切边废料的应用及三角带和制备方法
技术领域
本发明涉及输送带领域,主要涉及一种热塑性弹性体输送带切边废料的应用及三角带和制备方法。
背景技术
现有的热塑性弹性体输送带在生产过程中会产生大量的切边废料,这些切边废料一般会被打碎再回收利用再生产。但打碎的切边废料在再生产过程中能添加的量很少,而切边废料的产生量远远大于可利用的量,导致现有的热塑性弹性体输送带的切边废料无法消化。
因此,现有技术还有待于改进和发展。
发明内容
鉴于上述现有技术的不足,本发明的目的在于提供一种热塑性弹性体输送带切边废料的应用及三角带和制备方法,利用热塑性弹性体输送带切边废料的长条和抗撕裂强度好的特点,将热塑性弹性体输送带切边废料用于制备三角带,旨在解决现有塑性弹性体输送带切边废料产生量过大无法实现回收利用的问题。
本发明的技术方案如下:
一种热塑性弹性体输送带切边废料的应用,其中,将所述热塑性弹性体输送带切边废料用于制备三角带。
所述的热塑性弹性体输送带切边废料的应用,其中,将所述热塑性弹性体输送带切边废料用作三角带的抗拉层。
一种三角带,包括抗拉层和外覆盖胶,其中,所述抗拉层采用热塑性弹性体输送带切边废料制成。
所述的三角带,其中,所述三角带由抗拉层、外覆盖胶和包布组成,所述包布包覆在三角带的底部和两腰处。
所述的三角带,其中,所述包布是将聚酯帆布放入PVC浆料中浸浆烘干而成;
所述PVC浆料的原料,按照重量份数计,包括以下组分:
PVC糊状树脂100份;增塑剂20~100份;热稳定剂1~5份;填充料5~100份。
所述的三角带,其中,所述外覆盖胶采用以下原料组成,按重量份数计,包括以下组分:
PVC0~100份;增塑剂20~80份;热稳定剂1~8份;润滑脂0.1~10份;改性剂0~100份;填充料5~100份。
一种如上所述的三角带的制备方法,其中,包括以下步骤:
把热塑性弹性体输送带切边废料切割成截面形状为梯形的抗拉层;
将外覆盖胶的粒料和抗拉层分别送入挤出机,抗拉层的挤出方向与外覆盖胶熔体流向成直角,抗拉层穿过机头时被外覆盖胶熔体包围并均匀包覆;
挤出机挤出包覆有外覆盖胶熔体的抗拉层,冷却,制成三角带。
所述的三角带的制备方法,其中,在冷却前,还包括以下步骤:
将经过150℃~180℃温度预热的包布预先放置在压轮的三角带坑槽内,挤出机挤出包覆有外覆盖胶熔体的抗拉层进入压轮,在压轮的作用下,包布包覆在包覆有外覆盖胶熔体的抗拉层的底部和两腰。
所述的三角带的制备方法,其中,所述外覆盖胶采用以下原料组成,按重量份数计,包括以下组分:
PVC0~100份;增塑剂20~80份;热稳定剂1~8份;润滑脂0.1~10份;改性剂0~100份;填充料5~100份;
所述包布是将聚酯帆布放入PVC浆料中浸浆烘干而成;
所述PVC浆料的原料,按照重量份数计,包括以下组分:
PVC糊状树脂100份;增塑剂20~100份;热稳定剂1~5份;填充料5~100份。
所述的三角带的制备方法,其中,还包括以下步骤:
根据需要,切割出一定长度的三角带,在三角带的两端梯级分层切割出搭叠口,磨去去搭叠口上层接缝处的外覆盖胶,放入比三角带宽度稍窄的加强布覆于接缝处,再覆上顶胶,放入模具中热熔压合,接驳成环形三角带。
有益效果:本发明中,利用热塑性弹性体输送带切边废料的长条和抗撕裂强度好的特点,将热塑性弹性体输送带切边废料用作三角带的抗拉层,用于制备三角带,不仅解决了热塑性弹性体输送带切边废料的回收利用问题,还降低了三角带的制造成本。而且,制备该三角带的过程可以与常规方法相同,操作简单,生产得到的三角带性能优异。
附图说明
图1为三角带的剖面结构示意图。
图2为另一种型号的三角带的剖面结构示意图。
具体实施方式
本发明提供一种热塑性弹性体输送带切边废料的应用及三角带和制备方法,为使本发明的目的、技术方案及效果更加清楚、明确,以下对本发明进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
本发明中提供一种热塑性弹性体输送带切边废料的应用,将所述热塑性弹性体输送带切边废料用于制备三角带。所述三角带(V带)包括抗拉层和外覆盖胶。本发明中将热塑性弹性体输送带切边废料用做三角带的抗拉层。由于热塑性弹性体输送带切边废料,本身为长条形,具有一定的长度,而且热塑性弹性体输送带本身具有一定的韧性、抗撕裂强度好,因此,将热塑性弹性体输送带切边废料用做三角带的抗拉层,不仅解决了切边废料的回收处理问题,还降低了三角带的生产成本。
本发明中还提供一种三角带,如图1所示,所述三角带包括抗拉层1和外覆盖胶2;所述抗拉层1采用热塑性弹性体输送带切边废料制成。本发明中还提供所述三角带的制备方法,具体地,将热塑性弹性体输送带切边废料用于制备三角带的方法包括以下步骤:
制作抗拉层:把热塑性弹性体输送带切边废料,用胶料切割机切割成截面形状为梯形的抗拉层。抗拉层截面外形尺寸比要生产的V带的梯形截面两腰每边各小0.5mm~3mm。
在抗拉层表面包覆外覆盖胶:将外覆盖胶的粒料和抗拉层分别送入挤出机,抗拉层的挤出方向与外覆盖胶熔体流向成直角,抗拉层穿过机头时被外覆盖胶熔体包围并均匀包覆。这样,可使外覆盖胶熔体对抗拉层有紧密接触并与抗拉层胶料熔融为一体。其中,所述外覆盖胶可以采用现有技术中常规用料及配方。本发明方案中所述外覆盖胶采用以下原料组成,按重量份数计,包括以下组分:PVC0~100份;增塑剂20~80份;热稳定剂1~8份;润滑脂0.1~10份;改性剂0~100份;填充料5~100份。
冷却成型:挤出机挤出包覆有外覆盖胶熔体的抗拉层,经水槽冷却,制成三角带。
接驳成型:根据需要,切割出一定长度的V带,在V带的两端梯级分层切割出搭叠口,磨去去搭叠口上层接缝处的外覆盖胶,放入比V带宽度稍窄的加强布覆于接缝处,再覆上顶胶,放入模具中热熔压合,接驳成环形V带。其中,加强布的作用是加强接驳口处的拉力强度和避免接缝处在拉力作用下产生裂缝。
进一步地,如图2所示,根据型号的不同,所述三角带(V带)可以由抗拉层1、外覆盖胶2和包布3组成,所述包布3包覆在V带的底部和两腰处。当所述三角带还包括包布时,在冷却成型前,制备方法还包括以下步骤:
包布:将经过150℃~180℃温度预热的包布预先放置在压轮的V带坑槽内,挤出机挤出包覆有外覆盖胶熔体的抗拉层进入压轮,在压轮的作用下,包布包覆在包覆有外覆盖胶熔体的抗拉层的底部和两腰。
其中,所述包布可以采用现有技术中常规的包布。本发明技术方案中所提供的包布是采用以下制备方法制成的:
将聚酯帆布经过放入PVC浆料的浸浆槽,表面浸涂上PVC浆,再通过烘柜预塑化烘干,制得浸浆帆布,用分条机把浸浆帆布分条,切割成宽度能够包覆三角带外周的条状包布。
其中,PVC浆料的原料,按照重量份数计,包括以下组分:PVC糊状树脂100份;增塑剂20~100份;热稳定剂1~5份;填充料5~100份。
以下通过实施例对本发明做进一步说明。
实施例1:
一、外覆盖胶料造粒:
1、混料:所述V带覆盖胶粉料的制备,其原料组成,按照质量份数计,包括以下组分:
先将PVC树脂、DOP和其它助剂加入高速搅拌机内,高速搅拌10~15分钟,待PVC树脂粉充分吸收增塑剂,再加入称量好的经表面活化处理的碳酸钙、丁腈橡胶后高速搅拌,当物料温度达到105~110℃时排放入低速冷混机内,低速搅拌待物料温度低于50℃时放料备用。
2、造粒:所述粉料投入挤出机,挤出机筒的加热温度分别设置为80℃~130℃;100℃~150℃;120℃~160℃;140℃~170℃;机头的加热温度分别设置为140℃~170℃;130℃~140℃;将旋转切刀贴紧安装在机头模板上,直接将刚挤出的圆条状料切成粒料,同时用强风对粒料进行冷却。
二、制作包布:
1、打浆:所述PVC浆料的制备,其原料组成,按照质量份数计,包括以下组分:
2、混料:先将PVC糊状树脂和其它助剂加入混合机内,搅拌5~15分钟,混合均匀放料备用。把混合好的粉料加入打浆机内,按配方比例加入增塑剂,启动打浆机搅拌1~3小时,制得PVC浆料。
3、浸浆:聚酯帆布经过放入PVC浆料的浸浆槽,表面浸涂上PVC浆,再通过烘柜预塑化烘干,制得浸浆帆布。
4、分条:用分条机把浸浆帆布分条切割成宽度42mm的条状包布。
三、V带制作:
1、选用总厚度9mm;由4层PP300型(拉力强度:300N/mm)聚酯帆布制成的热塑性弹性体输送带切边后的废边料,用胶条切割机切割成截面形状为上宽17mm、下宽11mm的梯形V带抗拉层。
2、挤出成型:将外覆盖胶粒料投入挤出机,挤出机筒的加热温度分别设置为80℃~130℃;120℃~160℃;130℃~170℃;150℃~180℃;包覆机头模的加热温度设置为160℃~190℃;挤出机挤出的V带与来自挤出机的外覆盖胶料流成直角,抗拉层穿过机头时被熔体包围并均匀包覆,因而可使熔体对抗拉层有紧密接触并与抗拉层胶料熔融为一体。
3、包布:机头模出口截面为C型V带截面,外覆盖胶熔体在机头模内均匀包覆在抗拉层外从机头模口挤出,进入设置有C型V带坑槽的压轮,经过150℃~180℃温度预热的包布预设置在V带坑槽内,从机头模口挤出的熔体与包布的浸渍涂层在压轮作用下熔合,包布包覆在V带的底部和两腰,经水槽冷却,制得热塑性弹性体输送带切边废料抗拉层包布C型V带卷料。
4、接驳成型:
在C型V带卷料上切割出所需生产V带长度的条料,条料两端梯级分层切割出搭接口,磨去搭接口上层接缝处顶胶,放入比带宽度稍窄的加强布覆于接缝处,加强布的作用是加强接驳口的拉力强度和避免接缝处在拉力作用下产生裂缝,加强布上再覆盖上顶胶,放在C型V带模具上热熔压合接驳成环形,制得热塑性弹性体输送带切边废料抗拉层C型包布V带。
经检测:所述C型V带拉力强度达到:12.45KN,﹥9.6KN(C型包边V带国标);所述C型V带参考力伸长率:4.2%,﹤7%(C型包边V带国标)。参考“一般传动用普通V带”国家标准:GB/T1171-2006。
实施例2:
一、外覆盖胶料造粒:
1、混料:所述V带覆盖胶粉料的制备,其原料组成,按照质量份数计,包括以下组分:
先将PVC树脂、DOP和其它助剂加入高速搅拌机内,高速搅拌10~15分钟,待PVC树脂粉充分吸收增塑剂,再加入称量好的经表面活化处理的碳酸钙、液态聚氨酯后高速搅拌,当物料温度达到105~110℃时排放入低速冷混机内,低速搅拌待物料温度低于50℃时放料备用。
2、造粒:所述粉料投入挤出机,挤出机筒的加热温度分别设置为80℃~130℃;110℃~160℃;130℃~170℃;150℃~185℃;机头的加热温度分别设置为150℃~185℃;130℃~150℃;将旋转切刀贴紧安装在机头模板上,直接将刚挤出的圆条状料切成粒料,同时用强风对粒料进行冷却。
二、V带制作:
1、选用总厚度9mm;由4层PP300型(拉力强度:300N/mm)聚酯帆布制成的热塑性弹性体输送带切边后的废边料,用胶条切割机切割成截面宽度18mm、高度9mm的长方形V带抗拉层。
2、挤出成型:所述外覆盖胶粒料投入挤出机,挤出机筒的加热温度分别设置为80℃~130℃;120℃~160℃;130℃~170℃;150℃~180℃;包覆机头模的加热温度设置为160℃~190℃;挤出机挤出的V带与来自挤出机的外覆盖胶料流成直角,抗拉层穿过机头时被熔体包围并均匀包覆,因而可使熔体对抗拉层有紧密接触并与抗拉层胶料熔融为一体。机头模出口截面为D型V带截面,外覆盖胶熔体在机头模内均匀包覆在抗拉层外从机头模口挤出,经水槽冷却,制得热塑性弹性体输送带切边废料抗拉层D型V带卷料。
3、接驳成型:在D型V带卷料上切割出所需生产V带长度的条料,条料两端梯级分层切割出搭接口,磨去搭接口上层接缝处顶胶,放入比带宽度稍窄的加强布覆于接缝处,加强布的作用是加强接驳口的拉力强度和避免接缝处在拉力作用下产生裂缝,加强布上再覆盖上顶胶,放在D型V带模具上热熔压合接驳成环形,制得热塑性弹性体输送带切边废料抗拉层无包布切边V带。
经检测:所述D型切边V带拉力强度达到:17.28KN,﹥15.0KN(D型切边V带国标);所述D型切边V带参考力伸长率:4.7%,﹤5%(D型切边V带国标)。参考“一般传动用普通V带”国家标准:GB/T1171-2006。
应当理解的是,本发明的应用不限于上述的举例,对本领域普通技术人员来说,可以根据上述说明加以改进或变换,所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (10)

1.一种热塑性弹性体输送带切边废料的应用,其特征在于,将所述热塑性弹性体输送带切边废料用于制备三角带。
2.根据权利要求1所述的热塑性弹性体输送带切边废料的应用,其特征在于,将所述热塑性弹性体输送带切边废料用作三角带的抗拉层。
3.一种三角带,包括抗拉层和外覆盖胶,其特征在于,所述抗拉层采用热塑性弹性体输送带切边废料制成。
4.根据权利要求3所述的三角带,其特征在于,所述三角带由抗拉层、外覆盖胶和包布组成,所述包布包覆在三角带的底部和两腰处。
5.根据权利要求4所述的三角带,其特征在于,所述包布是将聚酯帆布放入PVC浆料中浸浆烘干而成;
所述PVC浆料的原料,按照重量份数计,包括以下组分:
PVC糊状树脂100份;增塑剂20~100份;热稳定剂1~5份;填充料5~100份。
6.根据权利要求3~5任一所述的三角带,其特征在于,所述外覆盖胶采用以下原料组成,按重量份数计,包括以下组分:
PVC0~100份;增塑剂20~80份;热稳定剂1~8份;润滑脂0.1~10份;改性剂0~100份;填充料5~100份。
7.一种如权利要求3所述的三角带的制备方法,其特征在于,包括以下步骤:
把热塑性弹性体输送带切边废料切割成截面形状为梯形的抗拉层;
将外覆盖胶的粒料和抗拉层分别送入挤出机,抗拉层的挤出方向与外覆盖胶熔体流向成直角(或60°角、45°角、30°角),抗拉层穿过机头时被外覆盖胶熔体包围并均匀包覆;
挤出机挤出包覆有外覆盖胶熔体的抗拉层,冷却,制成三角带。
8.根据权利要求7所述的三角带的制备方法,其特征在于,在冷却前,还包括以下步骤:
将经过150℃~180℃温度预热的包布预先放置在压轮的三角带坑槽内,挤出机挤出包覆有外覆盖胶熔体的抗拉层进入压轮,在压轮的作用下,包布包覆在包覆有外覆盖胶熔体的抗拉层的底部和两腰。
9.根据权利要求7或8所述的三角带的制备方法,其特征在于,所述外覆盖胶采用以下原料组成,按重量份数计,包括以下组分:
PVC0~100份;增塑剂20~80份;热稳定剂1~8份;润滑脂0.1~10份;改性剂0~100份;填充料5~100份;
所述包布是将聚酯帆布放入PVC浆料中浸浆烘干而成;
所述PVC浆料的原料,按照重量份数计,包括以下组分:
PVC糊状树脂100份;增塑剂20~100份;热稳定剂1~5份;填充料5~100份。
10.根据权利要求7或8所述的三角带的制备方法,其特征在于,还包括以下步骤:
根据需要,切割出一定长度的三角带,在三角带的两端梯级分层切割出搭叠口,磨去去搭叠口上层接缝处的外覆盖胶,放入比三角带宽度稍窄的加强布覆于接缝处,再覆上顶胶,放入模具中热熔压合,接驳成环形三角带。
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