CN1096928C - 连续工作式压力机 - Google Patents
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Abstract
本发明涉及一种用于生产层压板的连续工作式压力机,为了使压力机加热板上有更紧密的力支点,从而有更高的力密度,并达到更大的压力机加热板纵向(上)和横向(下)变形,固定在压力机滑块上的拉紧夹板的开口做得相当大,以至在每个纵向边有一块或数块拉紧夹板全面接纳带柱塞的压力缸的情况下,用两块隔板和横肋片构成模块化压力机支架,而且同时用开口的上开口面构成对柱塞的支撑。
Description
本发明涉及一种用来生产层压板、纤维板或类似的木料板和塑料板的连续工作式压力机。
本发明系以DE-PS 40 17 791公开的连续工作式压力机为依据。该专利的目的在于确定一种方法并提供一种连续工作式压力机,以实现在连续工作式压力机运行过程中相对纵向中轴线I-I对钢带进行调节,而不会发生钢带的单面过度拉伸。这种连续工作式压力机的目的还在于提供一种单横梁相互间的垂向弹性连接,以便将非对称的压力分布控制在压力机加热板上,从而实现其变形。为此而找到的解决办法已在实践中得到证明。这种连续工作式压力机的缺点在于,在压力机的解压部分和加压部分中压力机加热板的横向变形,特别是其纵向变形不够大,这种变形在纤维板(MDF)的生产中尤其有必要,因为只有将拉紧夹板布置在主压力缸之外才允许在拉紧框压力机支架中利用销钉或螺栓将拉紧夹板连接到上横连杆,以便从压力机滑块和压力机工作台到可弹性变形的压力机加热板传递能量的隔板产生相对较大的支撑间距。另外,由于下压力机加热板下的短行程缸相对于纵向中轴线I-I在拉紧框压力机支架内横向地布置成一排,因而其缺点还在于,从上压力机滑块向钢带上传递能量的隔板通过短行程液压缸支撑在隔板间支撑间距的中间。由于这样的支撑加之上部拉紧夹板固定造成的较大的支撑间距,为了支持上下压力机加热板抗弯,需要采用较厚的板厚,这样就不仅在横向而且在纵向限制了压力机加热板发生较高的挠性变形。这就是说,根据现有技术的压力机,在不损伤结构构件的情况下,在纵向和横向仅只可能有2mm/m的变形梯度。
本发明的目的是按照DE-PS 40 17 791的连续工作式压力机进行改进,以求达到更紧密的力支点和从而达到更高的力密度,并在压力机加热板上和进而在压力机工作台和压力机滑块的钢带上达到更好的力的流体弹性传导,实现压力机加热板上部有更大的纵向变形和下部有更大的横向变形。
本发明提供一种用来生产层压板、纤维板或类似的木料板或塑料板的连续工作式压力机,具有传递加压压力并拖带待加压的材料穿过压力机的挠性环形钢带,钢带经过传动滚筒和导向滚筒环绕压力机工作台和压力机滑块运行,并采用压力缸柱塞装置,以可调加压缝隙对着压力机加热板,经过一同运行的、且其轴线与钢带运行方向相交的滚动式支撑元件支撑在压力机工作台和压力机滑块的支座上,而压力机工作台和压力机滑块由在加压平面方向上彼此弹性连接的一些单横梁构成,其中单横梁压力机支架上的可伸缩拉紧夹板配有眼环,可用螺栓装在压力机工作台和压力机滑块的横连杆上,其特征在于,一种用来生产层压板、纤维板或类似的木料板或塑料板的连续工作式压力机,具有传递加压压力并拖带待加压的材料穿过压力机的挠性环形钢带,钢带经过传动滚筒和导向滚筒环绕压力机工作台和压力机滑块运行,并采用压力缸柱塞装置,以可调加压缝隙对着压力机加热板,经过一同运行的、且其轴线与钢带运行方向相交的滚动式支撑元件支撑在压力机工作台和压力机滑块的支座上,而压力机工作台和压力机滑块由在加压平面方向上彼此弹性连接的一些单横梁构成,其中单横梁压力机支架上的可伸缩拉紧夹板配有眼环,可用螺栓装在压力机工作台和压力机滑块的横连杆上,其特征在于,短行程缸连同其短行程柱塞配置在压力机加热板下方,固定在压力机滑块上的拉紧夹板的开口的尺寸设计成一块或多块拉紧夹板沿纵向侧包围状容置带有柱塞的压力缸,由两块隔板和横肋片构成模块化压力机支架,拉紧夹板通过开口的上开口面对柱塞加以支撑。
本发明具有以下优点:
通过新的更紧密的主压力机缸配置,使上下压力机加热板达到更紧密的力支点。采用新的上部拉紧夹板固定,压力机缸可直接并排放置,因而使更高的力密度和随之而来的几何上更好的力传导以及不仅在上部而且在下部都产生更大的压力机加热板变形成为可能。由于根据本发明大大缩小支撑间距,通过上压力机加热板的纵向变形与下压力机加热板的横向变形两者之间的功能分割,变形梯度可提高约100%,就是说,上部纵向和下部横向可提高到约4mm/m。因此,新的应用在技术上是可行的。通过如此较大的可变形性,例如在粗密度为≤500kg/m3的轻型纤维板制造范围内,与粗密度约为650kg/m3的层压板相比,即使在板厚变化很大的情况下,也能以物理要求更高的使用强度,例如更高的横向抗拉强度更为经济地进行生产。节省木材资源在保护环境方面和经济上有越来越大的优越性。为了下压力机加热板的横向变形,拉紧框压力机支架中的下部短行程缸合理布置在压力机工作台下隔板上,做到使液压压力横越至少四个力作用点等分布地传到压力机滑块的上隔板的支撑间距上。因此,下部压力机加热板的几何尺寸适用同上部一样的尺寸选定规则,而且通过这样的流体弹性多点支撑,可以以弹性熨平方式去掉由于分料误差,特别是在薄板生产过程中的分料误差造成的不同的加压材料密度分布,这有利于保护采用滚动支撑的钢带,并减少该处存在的耗费颇大的磨损,获得延长使用寿命的结果。通过在上部拉紧夹板开口内对主压力缸的新配置,可更紧密的支撑间距和数量更多的拉紧框压力机支架,在加压段上部框架隔板取均衡的间距。在压力机滑块上,主压力缸四周围绕着新型的拉紧夹板,液压作用力沿着准中心线传入柱塞中,这样,柱塞便能靠液压作用配合上部压力机加热板的挠性变形,即使在第一个拉紧框压力机支架开始处也采用4mm/m的上部压力机加热板纵向变形。通过结合使用根据DE-OS 4 01 594的入口***,由于其上部入口倾斜角可利用接头进行控制,液压操纵力在没有横向弯曲力的情况下在纵向受到阻挡,因此对下部横向变形可加以控制而不受限制。为使需加压的完工材料有最佳横向抗拉强度,可以从第一根单框架开始采用几排短行程缸,这样可在入口***之后立即采用下压力机加热板的横向变形。
根据本发明,由于短行程缸对需加压材料有更加灵活多样的作用,热能输入及对蒸汽压力的形成的影响最好是在加压段的前部范围,其结果是可以设定较高的生产率。通过在压力机滑块和压力机工作台各自的隔片内部布置拉紧夹板,隔板的间距可以配合压力缸体以更加均匀的间距布置。这就是说,压力缸在上部布置时,考虑到到达压力面的必需的力密度而布置得很紧密,这些压力缸从中点到中点相对于压力表面的支撑间距只相当于缸间距的一半大小,因而加压力传导到上下压力机加热板时产生相对紧密的力支点。通过这样的配合,根据压力传导情况,得出支点间距在400mm到500mm范围内这样有利的尺寸选定规则,而可能的压力机加热板厚度在75mm到90mm的范围内确定。对于下部的液压多点支撑,短行程缸采用约10mm的工作行程,同时为了与上隔板的支点间距一致,力支点采用两种结构型式。通过短行程柱塞支撑在压力机工作台的下隔板上,短行程缸可以靠下压力机加热板得到支撑。在液压无压力状态,由于每个压力机支架都安装了的弹簧弹性回弹,下压力机加热板约向下凹陷-2mm。在液压作用状态,压力机加热板可向上凸起最高达+8mm,因此,可根据钢带速度在前部高压区调整生产薄板和厚板的技术要求和在后部三分之一的加压段调整精确的定标。
在一实施例中,其短行程缸的压力作用面的形状是矩形的,因此其与输送方向相交的矩形边可相互按一定间距排列,每隔四根支梁在其边缘处抬高后可使支撑间距等于压力机滑块的上隔板的支撑间距。这些支梁在下压力机加热板上横对输送方向的支撑作用在绝缘材料带上,因此对短行程液压缸有相对于对已被加热的下压力机加热板的隔热作用。通过给每个拉紧框压力机支架分配两个到四个短行程缸,让短行程柱塞直接支撑在压力机工作台的隔板上,短行程缸面分布到每个短行程缸的四根支梁上,则可达到四倍缸数的效果。所有短行程缸,既包括工作行程约为100mm的上部的压力机主缸,也包括横向变形需要的工作行程约为10mm的下部短行程缸,都配备了密封***,允许柱塞作大约0.4°的倾斜运动,因此,可以在没有对压力缸和柱塞采用附加万向接头的情况下调整上部和下部压力机加热板的变形。
以下结合附图介绍本发明的实施例,以期更具体地了解本发明的其它特点和优点。
附图简单说明:
图1表示按照本发明的连续工作式压力机的立体图;
图2表示按照图1放大比例不带导向滚筒和钢带的连续工作式压力机的前部;
图3表示按照图2的连续工作式压力机的前视图;
图4表示按照图2中E-E剖面的压力机支架构造细节侧视图;
图5表示拉紧夹板上部构造;
图6表示配合下压力机加热板的短行程缸布置剖面图;
图7表示按按照图6配置的顶视图;
图8表示按照图6配置的侧视图。
根据本发明的连续工作式压力机1,如图1和图2中所示,为不带钢带5和6也不带滚杆12,根据图1到图8,其主要部件系由压力机工作台2和可垂直移动的压力机滑块3以及以正面锁紧方式联结该工作台和滑块的压紧夹板13组成。压紧夹板13可利用螺栓24迅速与压力机工作台2分开。在压力机工作台2和压力机滑块3的端面安装着入口横杆21,作为传动滚筒7和8的固定点和支点,为导向滚筒9和10及滚杆12的装入***(没有表示出来)所用。压力机工作台2和压力机滑块由隔板15和16及把隔板联结起来的横肋片18组成。两块上隔板16和两块下隔板15同拉紧夹板构成压力机支架22,该支架通过排列和布设压力机加热板33和34形成连续工作式压力机1的加压段L。
拉紧夹板13用螺栓24固定在压力机工作台2上,该螺栓被固定在拉紧夹板13和下隔板15的眼环23中。下压力机工作台2由多个固定的单横梁19(工作台模块)组成,压力机滑块3由多个单横梁20(压力机滑块模块)组成。从左右隔板16中伸出的凸肩或称之为悬臂充当顶杆使压力机滑块3上升和下降,其中压力缸柱塞装置26/27配置在拉紧夹板13的开口25内。从图1中还可得知导向滚筒9和10是如何构成进料缝隙11的,以及随钢带5、6环绕压力机工作台2和压力机滑块3的滚杆12是如何支撑着压力机加热板33和34的。就是说,作为滚动支撑的一个实例,环行的滚杆12是布置在压力机加热板33和34与钢带5和6之间随同滚动的。需加压材料4随着由传动滚筒7和8带动的钢带5和6穿过加压缝隙14,并被压成板材。短行程液压缸29同短行程柱塞30一起配置在压力机加热板33之下,并支撑在两块下隔板15上。按照图2、3、4和5,根据本发明的解决办法在于,固定在压力机滑块3上的拉紧夹板13的开口25做得相当大,以至在每个纵向边有一块或数块拉紧夹板13全面接纳带柱塞27的压力缸26的情况下用两块隔板15和16和横肋片18构成模块化压力机支架22或单支架22,而且同时用开口25的上开口面28构成对加压缝隙14的柱塞27的支撑或进行加压缝隙调整。在这种情况下,拉紧夹板13最好配置在压力机工作台2和压力机滑块3的一对隔板15和16内。作为适合连续工作式压力机1的构件的实用尺寸选定规则,规定压力机加热板33和34的厚度调整到75和90mm之间,以400mm到500mm的支撑间距e配置隔板15和16。
连续工作式压力机1的另一适当的结构,是规定给短行程缸29的面上各设四根方形支梁31,其中与纵向中轴线I-I相交的两根支撑线上多个短行程缸29的支梁31作用在下压力机加热板33上,并对准隔板15和16的端面布置,以使它们在下压力机加热板33上有相同的支撑间距e,如同隔板16在上压力机加热板34上一样。为了隔热和保护短行程缸29,在压力机加热板33上为支梁31的接触表面设置隔离带32。
从图3中得知利用回弹弹簧17使下压力机加热板33产生可凹陷变形特性。在液压无压力状态,用这种回弹弹簧17可使下压力机加热板33向下弯曲约-2mm,反之,在液压作用状态则可向上凸起高达+8mm。根据需要,回弹弹簧一律布置在一压力机支架22的两下隔板15或单支架22之间并固定在压力机加热板33中。
Claims (12)
1.一种用来生产层压板、纤维板或类似的木料板或塑料板的连续工作式压力机,具有传递加压压力并拖带待加压的材料穿过压力机的挠性环形钢带,钢带经过传动滚筒和导向滚筒环绕压力机工作台和压力机滑块运行,并采用压力缸柱塞装置,以可调加压缝隙对着压力机加热板,经过一同运行的、且其轴线与钢带运行方向相交的滚动式支撑元件支撑在压力机工作台和压力机滑块的支座上,而压力机工作台和压力机滑块由在加压平面方向上彼此弹性连接的一些单横梁构成,其中单横梁压力机支架上的可伸缩拉紧夹板配有眼环,可用螺栓装在压力机工作台和压力机滑块的横连杆上,其特征在于,短行程缸(29)连同其短行程柱塞(30)配置在压力机加热板(33)下方,固定在压力机滑块(3)上的拉紧夹板(13)的开口(25)的尺寸设计成一块或多块拉紧夹板(13)沿纵向侧包围状容置带有柱塞(27)的压力缸(26),由两块隔板(15和16)和横肋片(18)构成模块化压力机支架(22),拉紧夹板(13)通过开口(25)的上开口面(28)对柱塞(27)加以支撑。
2.如权利要求1所述的连续工作式压力机,其特征在于,所述拉紧夹板(13)分别配置在所述压力机工作台(2)或压力机滑块(3)的两块隔板(15和16)内。
3.如权利要求第1或2所述的连续工作式压力机,其特征在于,所述连续工作式压力机(1)的构件和尺寸设计成所述压力机加热板(33和34)的厚度在75和90mm之间,所述隔板(15和16)的支撑间距(e)为400mm到500mm。
4.如权利要求1或2所述的连续工作式压力机,其特征在于,所述短行程缸(29)连同其短行程柱塞(30)支撑在下隔板(15)的端面上,与一回弹弹簧(17)相结合可对下压力机加热板(33)的凹陷或凸起横向变形从-2mm到+8mm进行调节。
5.如权利要求第1或2所述的连续工作式压力机,其特征在于,所述短行程柱塞(30)的表面支撑在下隔板(15)的端面上,而短行程缸(29)呈四角形,并与纵向中轴线I-I相交和与上隔板(16)的端面对准,这样使其在下压力机加热板(33)上的支撑间距(e)同上压力机加热板(34)上的压力机滑块隔板(16)一样。
6.如权利要求1或2所述的连续工作式压力机,其特征在于,所述短行程缸(29)四角形支梁(31)与下压力机加热板(33)之间设有隔离带(32)作为中间衬垫。
7.如权利要求1或2所述的连续工作式压力机,其特征在于,相对于加压缝隙(14)的水平平面有一定正负偏差的上压力机加热板(34)的纵向变形与相对于加压缝隙(14)的平面有一定正负偏差的下压力机加热板(33)的横向变形无关,可利用上压力缸(26)和下短行程缸(29)的液压作用借助回弹弹簧(17)进行控制。
8.如权利要求1或2所述的连续工作式压力机,其特征在于,在一压力机支架(22)中的下压力机加热板(33)的横向变形是通过每一短行程缸(29)至少四个力作用点和借助以完全等同于上隔板(16)的支撑间距(e)支撑在下隔板(15)上的短行程柱塞(30)而产生的。
9.如权利要求1或2所述的连续工作式压力机,其特征在于,为了使压力机上加热板(34)产生纵向变形,压力缸(26)的柱塞(27)以约100mm的工作行程沿中心进行力传导并在可能在密封***中作0.4°的倾斜运动的情况下,将液压压力灵活地作用到上压力机加热板(34)上。
10.如权利要求1或2所述的连续工作式压力机,其特征在于,为了使压力机下加热板(33)产生横向变形,短行程柱塞(30)以约10mm的工作行程并在可能在密封***中作0.4°的倾斜运动的情况下,将液压压力灵活地作用到下压力机加热板(33)上。
11.如权利要求1或2所述的连续工作式压力机,其特征在于,压力机上加热板(34)的纵向变形和压力机下加热板(33)的横向变形可沿整个加压段(L)控制到各为4mm/m。
12.如权利要求1或2所述的连续工作式压力机,其特征在于,压力机缸(26)沿加压段(L)是相互紧密配置的。
Applications Claiming Priority (2)
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DE19622213.3 | 1996-06-03 | ||
DE19622213A DE19622213A1 (de) | 1996-06-03 | 1996-06-03 | Kontinuierlich arbeitende Presse |
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CN1168832A CN1168832A (zh) | 1997-12-31 |
CN1096928C true CN1096928C (zh) | 2002-12-25 |
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CN97105540A Expired - Lifetime CN1096928C (zh) | 1996-06-03 | 1997-06-02 | 连续工作式压力机 |
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US (1) | US5788810A (zh) |
JP (1) | JPH1067005A (zh) |
KR (1) | KR100465563B1 (zh) |
CN (1) | CN1096928C (zh) |
CA (1) | CA2206474A1 (zh) |
DE (1) | DE19622213A1 (zh) |
FI (1) | FI972249A (zh) |
IT (1) | IT1291358B1 (zh) |
SE (1) | SE511580C2 (zh) |
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DE19926258B4 (de) * | 1999-06-09 | 2015-07-30 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Kontinuierlich arbeitende Presse zur Herstellung von Werkstoffplatten |
JP4246651B2 (ja) * | 2004-02-20 | 2009-04-02 | 株式会社名機製作所 | 樹脂板転写成形装置 |
DE102005009333B4 (de) * | 2005-03-01 | 2017-02-09 | Siempelkamp Maschinen- Und Anlagenbau Gmbh | Pressengestell |
DE102009023577A1 (de) * | 2009-06-02 | 2010-12-09 | Dieffenbacher Gmbh + Co. Kg | Presse, insbesondere kontinuierlich arbeitende Presse zur Herstellung von Werkstoffplatten |
DE102009023581A1 (de) | 2009-06-02 | 2010-12-09 | Dieffenbacher Gmbh + Co. Kg | Presse, insbesondere kontinuierlich arbeitende Presse zur Herstellung von Werkstoffplatten |
DE102010003368A1 (de) | 2010-03-26 | 2011-09-29 | Dieffenbacher Gmbh + Co. Kg | Verfahren zur Herstellung von Werkstoffplatten in einer kontinuierlich arbeitende Presse und eine kontinuierlich arbeitende Presse |
CA3051615C (en) | 2015-05-15 | 2021-06-01 | Usnr/Kockums Cancar Company | Modular press |
CN110631526B (zh) * | 2019-10-17 | 2021-03-05 | 青海民族大学 | 一种古建筑彩绘梁位移的测量*** |
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US5333541A (en) * | 1990-06-01 | 1994-08-02 | Maschinenfabrik J. Dieffenbacher Gmbh & Co. | Method for guiding steel bands of a continuously working press by altering a position of a pressing ram to apply a varying pressure profile to a material being pressed |
US5537919A (en) * | 1993-12-24 | 1996-07-23 | Maschinenfabrik J. Dieffenbacher Gmbh & Co. | Measuring and control system for a continuously operating press |
US5562028A (en) * | 1994-02-19 | 1996-10-08 | Maschinenfabrik J. Dieffenbacher Gmbh & Co. | Longitudinal and convex flexural deformation of a press plate/heating plate in a continuously operating press |
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US4468188A (en) * | 1982-08-24 | 1984-08-28 | G. Siempelkamp Gmbh & Co. | Belt-type particleboard press |
DE3413396A1 (de) * | 1984-04-10 | 1985-10-24 | G. Siempelkamp Gmbh & Co, 4150 Krefeld | Anlage fuer das kontinuierliche pressen einer pressgutmatte im zuge der herstellung von spanplatten, faserplatten u.dgl. |
DE3702995A1 (de) * | 1987-02-02 | 1988-08-11 | Dieffenbacher Gmbh Maschf | Heizplattenpresse in fensterrahmenbauweise |
DE3914105A1 (de) * | 1989-04-28 | 1990-10-31 | Siempelkamp Gmbh & Co | Pressanlage zum kontinuierlichen pressen von pressgutbahnen |
US5182986A (en) * | 1990-06-01 | 1993-02-02 | Maschinenfabrik J. Dieffenbacher Gmbh & Co. | Method for realigning steel bands with respect to a longitudinal axis of a continuously working press |
DE4030228A1 (de) * | 1990-09-25 | 1992-03-26 | Siempelkamp Gmbh & Co | Kontinuierliche presse fuer die herstellung von spanplatten, faserplatten, laminatplatten u. dgl. |
-
1996
- 1996-06-03 DE DE19622213A patent/DE19622213A1/de not_active Withdrawn
-
1997
- 1997-04-11 SE SE9701340A patent/SE511580C2/sv not_active IP Right Cessation
- 1997-05-13 IT IT97MI001111A patent/IT1291358B1/it active IP Right Grant
- 1997-05-28 FI FI972249A patent/FI972249A/fi unknown
- 1997-05-29 CA CA002206474A patent/CA2206474A1/en not_active Abandoned
- 1997-06-02 US US08/867,625 patent/US5788810A/en not_active Expired - Fee Related
- 1997-06-02 JP JP9143976A patent/JPH1067005A/ja active Pending
- 1997-06-02 CN CN97105540A patent/CN1096928C/zh not_active Expired - Lifetime
- 1997-06-03 KR KR1019970023605A patent/KR100465563B1/ko not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US5333541A (en) * | 1990-06-01 | 1994-08-02 | Maschinenfabrik J. Dieffenbacher Gmbh & Co. | Method for guiding steel bands of a continuously working press by altering a position of a pressing ram to apply a varying pressure profile to a material being pressed |
US5537919A (en) * | 1993-12-24 | 1996-07-23 | Maschinenfabrik J. Dieffenbacher Gmbh & Co. | Measuring and control system for a continuously operating press |
US5562028A (en) * | 1994-02-19 | 1996-10-08 | Maschinenfabrik J. Dieffenbacher Gmbh & Co. | Longitudinal and convex flexural deformation of a press plate/heating plate in a continuously operating press |
Also Published As
Publication number | Publication date |
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SE9701340D0 (sv) | 1997-04-11 |
IT1291358B1 (it) | 1999-01-07 |
JPH1067005A (ja) | 1998-03-10 |
SE511580C2 (sv) | 1999-10-25 |
DE19622213A1 (de) | 1997-12-04 |
CN1168832A (zh) | 1997-12-31 |
SE9701340L (sv) | 1997-12-04 |
FI972249A (fi) | 1997-12-04 |
ITMI971111A1 (it) | 1998-11-13 |
ITMI971111A0 (zh) | 1997-05-13 |
US5788810A (en) | 1998-08-04 |
KR100465563B1 (ko) | 2005-06-20 |
KR980000828A (ko) | 1998-03-30 |
CA2206474A1 (en) | 1997-12-03 |
FI972249A0 (fi) | 1997-05-28 |
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