CN104520090B - 制造灌溉管的方法和系统 - Google Patents

制造灌溉管的方法和系统 Download PDF

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Publication number
CN104520090B
CN104520090B CN201380032090.6A CN201380032090A CN104520090B CN 104520090 B CN104520090 B CN 104520090B CN 201380032090 A CN201380032090 A CN 201380032090A CN 104520090 B CN104520090 B CN 104520090B
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CN
China
Prior art keywords
pipe
drip
unit
lifting device
lifting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201380032090.6A
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English (en)
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CN104520090A (zh
Inventor
P·德萨尔岑斯
E·莫克
F·考夫曼
S·马尔扎赫
A·克洛普芬斯坦因
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MEHLEFIL AG
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MEHLEFIL AG
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Publication of CN104520090A publication Critical patent/CN104520090A/zh
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Expired - Fee Related legal-status Critical Current
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G25/00Watering gardens, fields, sports grounds or the like
    • A01G25/02Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
    • A01G25/026Apparatus or processes for fitting the drippers to the hoses or the pipes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/157Coating linked inserts, e.g. chains
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/903Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/022Particular heating or welding methods not otherwise provided for
    • B29C65/028Particular heating or welding methods not otherwise provided for making use of inherent heat, i.e. the heat for the joining comes from the moulding process of one of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B29C65/78Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
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    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
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    • B29C66/1122Single lap to lap joints, i.e. overlap joints
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61Joining from or joining on the inside
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824Actuating mechanisms
    • B29C66/8242Pneumatic or hydraulic drives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824Actuating mechanisms
    • B29C66/8244Actuating mechanisms magnetically driven
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8322Joining or pressing tools reciprocating along one axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
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    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00Producing tubular articles
    • B29D23/001Pipes; Pipe joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C2948/92323Location or phase of measurement
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    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C2948/92504Controlled parameter
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • Y02A40/22Improving land use; Improving water use or availability; Controlling erosion
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    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
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    • Y10T29/49Method of mechanical manufacture
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/53Means to assemble or disassemble
    • Y10T29/53539Means to assemble or disassemble including work conveyor

Abstract

一种用于管例如灌溉管(2)的部件插入方法,包括:‑从射出单元射出至少一个部件例如滴流器(1);‑利用滴流器行进单元使至少一个滴流器(1)在灌溉管内部行进;‑通过使用提升装置(10)使滴流器向灌溉管(2)的内表面提升,从而滴流器(1)在与灌溉管(2)的内表面碰撞时与这个内表面平行或大致平行。根据本发明的方法还允许在提升装置、射出单元及滴流器行进单元之间的协调一致,从而能够以紧公差保持每个间距上的滴流。

Description

制造灌溉管的方法和系统
技术领域
本发明涉及利用挤制工艺来制造管的方法和制造这种管的系统,所述管特别是灌溉管,例如滴流灌溉管(drip irrigation pipe)。本发明还涉及部件插入方法和用于这种部件插入的装置。所述部件例如是滴流器。
背景技术
一些灌溉技术使用所谓的“滴流”灌溉管或软管。术语“滴流灌溉管”在本上下文中指示灌溉管,该灌溉管例如由聚合材料制成,由小径孔按预定间隙刺穿,水可穿过这些小径孔流向地面。可在每个孔处设置作为流量限制器的滴流器或滴流元件,以精确地控制来自孔的流量。它一般由塑料材料制成,并且它在灌溉管的制造期间附接至灌溉管的内壁。
由于灌溉管具有固定的横截面廓形,所以一般用挤制工艺制造它们。用来制造灌溉管的系统总体上包括:挤制单元;校准单元,用来调节管的直径;冷却单元,用来将管冷却,该冷却单元包括约数十米长的液体冷却池和池内的冷却液(例如水);及牵引单元,用来牵拉管穿过液体冷却池。灌溉管在液体冷却池内的速度一般高于150m/min,例如为200m/min。
滴流器可由射出单元或滴流器插入单元有规律地进给到挤制单元中再进给到灌溉管中,该射出单元或滴流器插入单元包括定向机构,用来将滴流器沿预定取向进给到挤制单元。
挤制单元与混合器单元合作,该混合器单元用于将不同的物质(诸如例如数种聚合物)与一部分碳黑相混合。挤制单元可包括多于一个的挤制头,以便生产出具有数个层的灌溉管。
插入棒是穿过挤制单元在正被挤制的管内部伸出一定长度的元件。从射出单元射出的滴流器借助于这个插入棒引导成与灌溉管的内表面相接触。
滴流器借助于滴流器行进单元在插入棒上行进,并在聚合物材料仍然在熔融状态下时被放置成与管的内表面相接触。滴流器行进单元可以具有不同的类型:已知装置包括将恒定速度赋予滴流器的运动带、使滴流器按间断的“停-和-走”行程行进的机械装置、用空气流使滴流器向前推动的气动系统等。也可以使用其它的已知系统。
挤制单元和滴流器行进单元可以是同一单元。
设置穿孔单元,用来在与每个滴流器相对应的适当位置处对灌溉管钻孔,以使滴流器起作用。穿孔单元可包括一个或多个穿孔头。
除牵引单元之外还有用来将管缠绕到卷轴上的缠绕单元。可在牵引单元与缠绕单元之间设置缓冲器。
如所讨论的那样,插入棒将滴流器引导到与管相接触的位置,在该处利用管的热量把滴流器热焊接到管上。热焊接需要将每个滴流器以一定力靠压灌溉管的内表面或壁。然后,需要与插入棒相对的、例如属于校准器或属于夹紧轮或属于带的另一个表面来使每个滴流器有效地靠压灌溉管的内表面。
图1表示已知的滴流器插入装置。插入棒20被固定,并且由未示出的射出单元射出的滴流器1在插入棒上行进。然后,所示滴流器1被引导成与灌溉管2的内表面相接触,该灌溉管2已经由校准单元40校准。
插入棒与所示水平线H形成“小”角度“a”,该“小”角度“a”通常落入2°-20°的范围内。
图1所示的在滴流器1与灌溉管2之间的接触是光滑的。然而,滴流器1与灌溉管2的内表面之间的接触位置没有被非常精确地限定,使得滴流器间距(即,两个相继滴流器之间的距离)的公差会相对地大。
图2示出另一种已知的解决方案,这种已知解决方案使得能够改进滴流器的位置精度。在所示解决方案中,插入棒20在固定部位处包括斜坡22,该斜坡22与所示水平线H形成角度“b”,该角度“b”一般大于角度“a”。
图2所示解决方案的主要缺陷是,滴流器1对管2的强烈碰撞影响,如图3所示的那样。事实上,滴流器1在碰撞时的倾斜导致灌溉管2的内表面变形,使得灌溉管2会被弱化或甚至穿孔。
此外,沿滴流器1的接触力和压力不相等,从而滴流器的焊接不一致:总体而言,滴流器1在其前部端部处比在其后部端部处焊接得好。
EP1006778、EP1817955及US2011/0056619描述了图2中示出的装备。
WO9955141涉及一种用于滴流灌溉导管的制造的装置,在这种装置中,在射出器已被放置在管的内部表面上之后,校准器的活动部分朝着管径向地移动。这种径向移动借助于驱动机构实现,该驱动机构包括转动凸轮,该转动凸轮仅在射出器已被放置在管的内部表面上之后才径向地抬升活动部分。
EP1403025涉及一种用于连续地制造滴流灌溉管的装置,包括供给装置,用于将定量元件供给到管体中,该管体包括按压元件,该按压元件由导轨的端部区域形成。该装置还包括按压构件,该按压构件能够在按压元件附近从外部靠管体。按压元件被固定并且没有被构造成能够移动。
EP2227942涉及一种用于制造滴流灌溉管的装置,该装置包括用于按压并连接管体内的计量元件的装置,即,在管体外部的辊子,其被设置在预冷却腔室中。固定的斜坡允许计量元件与管体接触。
US4191518涉及一种制造管的方法,包括用隔膜将管形本体纵向地隔开成两个导管,并具有沿着导管的长度间隔开的位置处从隔膜伸出到一个导管中并延伸至与导管内壁紧密接触的阻挡件。
US5282916描述了一种用于制造滴流灌溉装置的方法,其中每个滴流单元在其到达挤制管仍旧是粘性的第一位置处时被俘获,然后使其横向地运动以与挤制管的粘性表面轻柔地接触,从而将滴流单元轻轻地粘接至管。
本发明的目的在于消除或缓和一个或多个上述缺陷。
发明内容
本发明的目的是提供一种部件插入方法和装置,这种部件插入方法和装置允许将一个或多个部件无损地插入由挤制工艺生产的管内。有利地,每个部件包括至少一个层或表面,该至少一个层或表面与管的内表面相接触,并且该至少一个层或表面由适于利用管的热量而热焊接到管上的材料制成。例如,每个部件可包括聚合物表面或粘合剂或漆层,以便能够利用管的热量实现“粘附”作用。
在优选实施例中,被插入的部件是滴流器。
本发明的目的是提供一种部件插入方法和装置,这种部件插入方法和装置允许减小或消除挤制管的部件碰撞变形。
本发明的另一个目的是提供一种部件插入方法和装置,这种部件插入方法和装置允许改进部件间距精度。
根据本发明,这些目的借助于根据权利要求1的部件插入方法、借助于根据权利要求10的部件插入装置、借助于根据权利要求21的用来制造管的方法、及借助于根据权利要求23的用来制造管的系统而实现。
根据本发明的用于管(例如灌溉管)的部件插入方法包括:
-从射出单元射出至少一个部件,
-借助于部件行进单元使部件在管内行进,
-通过使用提升装置使部件朝向管的内表面提升。
在优选实施例中,术语“提升装置”指示用作部件的弹簧板的装置。换句话说,提升装置在管内向“空中”射出部件。然后,清楚的是,在提升之前,部件不放置在管的内部表面上。在另一个实施例中,提升装置用作提升件,并且支撑部件直到其与管的内表面相接触。在这种情况下,提升装置也可将某些按压力施加在管的内表面上。
根据另一个方面,本发明也涉及一种用于将部件热焊接在挤制管内的多个间隔开的位置处的部件插入方法,这种部件插入方法包括如下步骤:
-在所述管的挤制期间,使所述部件沿轨道与所述管一起行进;
-控制在所述管内的射出单元,用来对着挤制管的内表面依次射出所述部件,以便将所述部件抵靠所述内表面焊接。
有利地,部件(例如滴流器)在与管(例如灌溉管)的内表面相碰撞时保持成与内表面平行或大致平行,允许无损插入。
在提升装置支撑部件直到当它与管的内表面相接触时的情况下,部件在碰撞时由提升装置保持成与内表面平行。在提升装置起弹簧板的作用并且在管内向“空中”射出部件的情况下,部件在碰撞时可与内表面大致平行。
在本上下文中,表述“大致平行”意味着,当提升部件碰撞管的内表面时,在灌溉管的内表面与这个部件之间可存在角度。这个角度的幅值落入-15°至+15°的范围,优选地落入-5°至+5°的范围。
在优选实施例中,提升部件包括两个端部,第一端部或前端部以及与第一端部相对的第二端部或后端部。正角度幅值指示,这个角度在部件的第一端部与管的内表面之间。负角度幅值指示,这个角度在部件的第二端部与管的内表面之间。
在优选实施例中,提升装置与管的内表面相平行。在部件被提升之后并且与管碰撞时,部件可与管的内表面平行或大致平行。
由于部件在与管的内表面碰撞时保持与这个内表面平行或大致平行,所以消除或至少大大地降低管的碰撞变形风险。况且,在部件与管的接触表面之间在碰撞时的平行度保证滴流器对于灌溉管的平稳和均匀焊接。
本发明的方法允许精确地限定在部件与管的内表面之间的接触点,从而部件间距(即在两个相继部件之间的距离)是恒定的。
通过知道管的速度和/或在两个相继提升运动之间的时间和/或在管与提升装置之间的距离和/或部件的行进速度,确定接触点的位置。
例如可能的是,改变在两个相继提升运动之间的时间,以便控制部件在管的内表面上的希望位置。
在提升装置起弹簧板作用的情况下,部件与管的内表面之间的落入-15°至+15°范围内的角度不会导致在管内表面穿孔。由本申请人进行的试验已经示出,管的内表面的碰撞区比在图2所示已知解决方案较小地弱化,或者根本不弱化。事实上,根据本发明的方法,部件为了接触管的内表面不由斜坡加力,而是它被简单地提升。
在部件提升之后并且在与管的内表面相接触之前,部件可以倾斜或者向上倾斜,从而它在接触时与管的内表面形成很小的角度。具体地说,部件的前端部可以在后端部之前与管的内表面相接触。因而,可以主动地设置在碰撞时在管的内表面与部件的上表面之间的小角度,以便保证部件的前端部在管的内表面内的较深透入。然而,由于内表面不是固定的而是在挤制过程期间被牵拉,所以部件的后端部自动地与内表面相接触,从而部件与管的焊接比现有技术更加平稳和均匀。当然,如果部件的后端部在前端部之前与内表面相接触,则这也适用。
也能够让部件在一个方向上朝管的内表面伸出,该方向包括与管成径向的第一分量、和与管的纵向轴线相平行的第二分量。
提升装置具有固定位置,并且例如可以属于插入棒。部件间隔那么取决于部件射出速率精度和/或部件行进速度精度,并且可按比已知解决方案更紧密的公差保持。
提升机构可由机械致动器、机电致动器、电磁致动器、磁致伸缩致动器、纯电气致动器或任何其它种类的致动器致动,该致动器使滴流器与管相接触。提升机构例如可以以非限制性方式基于电磁线圈,基于压电、机械、气动或电气-气动装置等。
在优选实施例中,提升装置由一个或多个音圈致动器致动,该一个或多个音圈致动器与附接到扬声器音盆的顶点的那些音圈致动器相似。每个音圈绕芯部缠绕,该芯部由两个层——下层和上层——制成,该下层包括永久磁铁,该上层包括金属。通过驱使电流通过音圈,产生磁场。音圈对来自固定永久磁铁的磁场起反应而由此上下运动。
在优选实施例中,将音圈放置得靠近插入棒的端部在校准单元之后。
在另一个实施例中,为避免部件粘结在它们的支架上而使用的同一冷却液,例如冷却水,也用来冷却音圈。
提升装置的提升运动和部件在插入棒上的运动需要协调一致。在一个实施例中,这种协调基于探测器对部件通行的探测。这个探测器产生第一电信号,该第一电信号触发提升装置提升。在一个实施例中,探测器是红外探测器。
在这个实施例中,第一电信号可有利地用来将部件的行进与提升协调一致。具体地说,第一电信号可用来计算部件行进速率。
如果部件行进单元包括将恒定速度赋予部件的运动带或使部件按间断的“停-和-走”行程行进的机械装置,则这个第一电信号可便利地用来将这些装置的行进速度与提升协调一致。
在另一个实施例中,提升装置本身产生第二电信号,该第二电信号可用来计算部件行进速率。
在另一个实施例中,部件行进单元产生第三电信号,该第三电信号可用于计算提升装置的提升速率。
在另一个实施例中,为了实现部件的行进和提升之间的协调一致,第一、第二及第三信号可分离地、双重地或一起由电子模块评估。
电子模块可属于提升装置,并且/或者属于射出单元,并且/或者属于行进单元。在另一个实施例中,电子模块属于与提升装置、射出单元及行进单元不同的装置,但通过任何种类的无线或有线连接方式而与其连接。
提升装置、射出单元及行进单元通过任何种类的无线或有线连接方式而与电信号通信。
在另一个实施例中,插入棒包括端部止挡部,该端部止挡部允许止挡行进中的部件,然后允许限定出用于提升部件的固定位置。在这个实施例中的提升装置放置在被止挡的部件下方。在这样一种情况下,部件探测器是不必要的,并且例如通过使用上述第二电信号进行提升装置与在部件插入棒上的运动之间的协调,该第二电信号由提升装置产生。
新解决方案具有的优点是,它提供一种部件插入方法和装置,这种部件插入方法和装置允许部件的无损插入,具体地说,允许减小或消除管的碰撞变形,并提高部件间距精度。
本发明还涉及一种用来制造管(例如灌溉管)的方法,这种方法包括:
-由挤制单元挤制灌溉管,
-由校准单元校准所述管的直径,
-在冷却单元中由牵引单元牵拉管,
-从射出单元射出至少一个部件,
-由部件行进单元使至少一个部件在管内行进,
-通过使用提升装置将所述部件向管的内表面提升,从而部件在与内表面碰撞时与这个内表面大致平行。
在一个实施例中,部件是滴流器,管是灌溉管,并且方法包括由穿孔单元与每个滴流器相对应地对管钻孔的步骤。
本发明还涉及一种用来制造管(例如灌溉管)的系统,这种系统包括:
-挤制单元,用来挤制管,
-校准单元,用来校准管的直径,
-牵引单元,用来在冷却单元中牵拉管,
-部件插入装置,包括:
射出单元,用来射出至少一个部件,
部件行进单元,用来使部件在管内行进,
提升装置,用来将部件提升成与管的内表面相接触,从而部件在与管的内表面碰撞时与这个内表面大致平行。
在一个实施例中,部件是滴流器,管是灌溉管,并且系统也包括穿孔单元,该穿孔单元用来与每个滴流器相对应地对管钻孔。
附图说明
借助于描述作为示例给出并由附图示出的实施例,将较好地理解本发明,在附图中:
图1示出了已知的滴流器插入装置。
图2示出了另一种已知的滴流器插入装置。
图3示出了与图2滴流器插入装置有关的一些缺陷。
图4示出了根据本发明的滴流器插入装置的一个实施例。
图5A至图5C示出了根据本发明的提升装置的实施例的三个视图。
具体实施方式
图4示出了根据本发明的用于挤制管2的部件插入装置的一个实施例。挤制管2适于容装流体,即液体或气体。挤制管2还可适于容装固体材料。
如所讨论的那样,部件1包括至少一个层或表面,该至少一个层或表面与管的内表面相接触,并且该至少一个层或表面由适于利用管的热量而被热焊接到管上的材料制成。例如,每个部件1可包括聚合物表面或者粘合剂或漆层,以通过使用管的热量而实现“粘附”效果。在优选实施例中,被插入的部件是滴流器。
在示出的实施例中,挤制管2是适于容装液体(例如水)的灌溉管,并且部件1是滴流器。
在图4的实施例中,根据本发明的装置包括:
-射出单元(未示出),该射出单元用来射出至少一个滴流器1,
-滴流器行进单元(未示出),用来使滴流器1在灌溉管2内部行进,
-提升装置10,其有利地使每个滴流器1朝着灌溉管2的内表面行进,从而使得滴流器1在与内表面碰撞时与这个内表面平行。
射出单元可包括定向机构,该定向机构用来将滴流器沿确定的取向进给到灌溉管。
滴流器行进单元可以具有不同的类型:已知装置包括将恒定速度赋予滴流器的运动带、使滴流器按间断的“停-和-走”行程行进的机械装置、用空气流向前推动滴流器的气动系统等。也可以使用其它的系统。在一个实施例中,被牵拉的管的速度比滴流器的行进速度高。在优选实施例中,管速度至少是滴流器速度的10倍。
在一个实施例中,滴流器1从储器进给到振动料斗(vibrating bowl feeder),该振动料斗使得滴流器以流动路径表面作为上表面的方式对准。如此对准的滴流器1被逐个地进给到运动带。滴流器缓冲器可设在振动料斗与运动带之间。运动带使滴流器1朝着滴流器行进单元运动,该滴流器行进单元使滴流器在插入棒上行进,该插入棒延伸到校准单元的内部。
滴流器行进单元放置在运动带(或总体上在射出单元)与校准单元之间,以便调节滴流器1的行进速度,从而使它们在插入棒上以希望速度进给到校准器内部。这个滴流器行进单元可包括两个臂,这两个臂交替地拾取和放下滴流器1,并且也起调节单元的作用。
在所描述的实施例中,射出单元包括在插入棒之前的全部元件,具体地说包括储腔、作为定向机构的振动料斗、缓冲器及运动带。
在其它实施例中,射出单元和滴流器行进单元可以是同一单元。
提升装置10允许无损插入(damage-free insertion)。由于滴流器1在提升期间并与灌溉管的内表面碰撞时保持与这个内表面平行,所以消除或至少大大地降低了灌溉管2的碰撞变形的危险。
在图4的实施例中,插入棒20被固定,滴流器行进单元包括气动系统,其中滴流器1由空气流向前推动。插入棒20设有提升装置10。
如所讨论的那样,提升装置10可由机械、机电、纯电气或任何其它种类的致动器致动,该致动器使滴流器与管相接触。
提升机构例如可以以非限制性方式基于电磁线圈、基于压电装置、基于机械或气动或电气-气动装置等。
在优选实施例中,提升装置由一个或多个音圈致动器100致动,该一个或多个音圈致动器100示出在图5A和图5C中,这种音圈致动器与附接到扬声器音盆的顶点上的那些音圈致动器相似。每个音圈100围绕芯部缠绕,该芯部由两层——下层和上层——制成,下层包括永久磁铁102,上层包括金属104。
通过驱使电流通过音圈100而产生磁场。音圈100对来自固定永久磁铁102的磁场起反应,由此引起音圈100本身与通过支撑元件108支撑滴流器1的两个弯曲或弹簧元件112一道上下运动。支撑元件108可包括隔热材料。它必须适于支持来自管和/或来自音圈的热量。例如,它由高质量聚合物或由陶瓷制成。
由螺钉110固定到插入棒20上的这两个元件112用作两块弹簧板,这两块弹簧板引起支撑元件108以及后滴流器1的提升。由任何与铁或任何其它铁磁性金属不同的金属制成的另一个层106放置在元件112与层104之间。
如在图5C中示出的那样,滴流器1然后可由音圈100提升。在图5A和图5B上示出的实施例中,设有两个音圈110来允许对滴流器倾斜的细微调整,从而使得滴流器1在碰撞时始终与灌溉管2的内表面相平行。然而,其它实施例是可能的,这些其它实施例只包括一个音圈或者多于两个的音圈,一个音圈更容易控制。
在优选实施例中,将音圈100放置在插入棒的端部上在校准器之后。
在另一个实施例中,用于避免滴流器粘结在其支撑件上的相同冷却液(例如冷却水)也用来冷却音圈。
在一个实施例中,在将部件1放置在提升装置上之前,可在提升装置中存储一些弹性能。例如,负信号可供给到音圈100,以便引起弹簧112的向下弯曲。换句话说,将弹簧112“预加载”。在这样一种情况下,部件1将用更大的动力提升。
在优选实施例中,供给到每个音圈100的信号是周期性方波信号,该周期性方波信号具有约33Hz的频率。当然可以为了修改提升装置的提升动作而改变每个脉冲的幅值和时间长度或频率。
在另一个实施例中,幅值比正脉冲幅值小的负信号可在两个相继的脉冲之间供给到音圈,以便避免系统的不希望振荡。
在一个实施例中,提升装置的长度小于滴流器1的长度。在优选实施例中,将提升装置放置在滴流器1下方,从而滴流器的质心在提升装置上方。在优选实施例中,提升装置的中部和滴流器1的中部重合。换句话说,将滴流器1对称地放置在提升装置上。例如,滴流器是30mm长,提升装置是20mm长,滴流器1的后端部处的5mm和其前端部处的5mm不与提升装置相接触。在这样一种情况下,计算滴流器的不与提升装置相接触的后区段的长度,从而允许下个滴流器在提升前一个滴流器期间行进。
根据另一个实施例,滴流器1的长度小于提升装置的长度。根据另一个实施例,滴流器1没有被对称地放置在提升装置上:尽管如此,滴流器的中心仍在提升装置上方。
根据另一个实施例,在任何情况下,设有与图2的斜坡22相似的斜坡,用来在提升装置不工作或在没有同步的情况下允许滴流器1的插入。
提升装置10的提升动作和插入棒上的滴流器动作需要协调一致。在一个实施例中,这种协调基于探测器30对滴流器1通行的探测。这个探测器30产生第一电信号触发提升装置10提升,然后该提升装置10从第一位置10′运动到第二位置10″。
在这个实施例中,第一电信号可有利地用来将滴流器1的行进与提升协调一致。具体地说,第一电信号可用来计算滴流器行进速率。
如果滴流器行进单元包括将恒定速度赋予滴流器1的运动带或者使滴流器按间断的“停-和-走”行程行进的机械装置,则这个第一电信号可有利地用来将这些装置行进速度与提升协调一致。
如果滴流器行进单元包括气动系统,其中滴流器由空气流向前推动,则这个第一电信号可有利地用来计算这个空气流的动力。
在另一个实施例中,提升装置10本身产生第二电信号,该第二电信号可用来计算滴流器行进速率。这种后一手段允许滴流器间距的固有地更好的精度,并且不要求使用另外装置作为探测器30。
在另一个实施例中,滴流器行进单元产生第三电信号,该第三电信号可用于计算提升装置的提升速率。
如所讨论的那样,为了实现上述在滴流器的行进与提升之间的协调一致,第一、第二及第三信号可分离地、双重地或一起由电子模块评估。
电子模块可属于提升装置10,并且/或者属于射出单元,并且/或者属于行进单元。在另一个实施例中,电子模块属于与提升装置、射出单元及行进单元不同的装置,但通过任何种类的无线或有线连接方式与其连接。
提升装置10、射出单元及行进单元通过任何种类的无线或有线连接方式与电信号通信。
在图4中,插入棒20包括端部止挡部24,该端部止挡部24由插入棒20的厚度从h1到h2>h1的突然变化而引起。这个端部止挡部24的高度h2-h1至少等于或高于每个滴流器1的一部分高度,以便止挡该滴流器并然后限定出用于提升该滴流器的固定部位。
在图4的实施例中的提升装置放置在被止挡的滴流器1下方的固定位置处。在这样一种情况下,滴流器探测器30是不必要的,并且例如通过使用由提升装置10产生的上述第二电信号来进行提升装置10与插入棒上的滴流器动作之间的协调一致。
在提升装置10之后,插入棒20的厚度保持高于或等于h2,从而形成用于夹紧轮50或总体上用于穿孔单元的支撑表面。
在一个实施例中,提升装置10可简单地发射出滴流器1与灌溉管2的内表面相接触。通过使用例如属于夹紧轮50的表面将每个滴流器1以一定力靠压灌溉管2的内表面。
在另一个实施例中,提升装置10也可施加一些按压力。
滴流器1与灌溉管2的接触表面之间在碰撞时的平行度保证滴流器1平稳且均匀一致地焊接至灌溉管2。
在所描述的实施例中,部件1(例如滴流器)的提升在管2的内部进行。然而,也可能的是以这样的方式提升部件1而使其与管2的外表面相接触。在这种情况下,提升装置放置在管2外面。在这样一种情况下,提升装置可用来在管的外表面上布置用来定位滴流器1的标记或符号。
部件1的提升可在校准单元之前或在校准单元内部或在校准单元之后进行。
部件1可按恒定运动或按定序运动(停和走)行进。
部件例如可以是用来测量管内液体流速的传感器。在另一个实施例中,它能是温度传感器、压力传感器或任何其它种类的传感器。
根据另一个实施例,部件1是发送应答器,该发送应答器包括用来发射和/或接收信号的机构。在示例中,在将发送应答器1插入管2的内部之后,可在管2上与部件1相对应地钻孔,例如用来通过使用一些导线将发送应答器连接到包括天线的外部装置。
根据另一个实施例,部件1是用来在对任何种类的挤制管2进行钻孔之前加强该挤制管2和/或用来保证其与钻削孔相对应的防水性和/或防气性的元件。例如,部件1能是与外部螺钉合作的螺母。部件1一般能是任何部件,该部件可与外部部件或装置机械地和/或电气地合作。
根据另一个实施例,提升部件1是被热焊接到管的内表面上的装订器(stapler)。在这样的情况下,需固定至管2的内表面的元件(例如并且按非限制性方式是滴流器和/或LED和/或传感器)可由一根或多根导线连成像一串珍珠(a string of pearls),该珍珠便是上述元件。导线能是电气或光学导线。线串可按恒定运动或按定序运动(停和走)在在装订器上行进。热装订器包括一个或多个凹槽,每个凹槽具有适于容装一根或多根导线的形式。
如所讨论的那样,线串在装订器上行进。当线串的导线(一根或多根)位于装订器上时,它可以被提升,从而将它和导线(一根或多根)热固定到管的内表面上。换句话说,装订器如将电线固定在房屋墙壁上的夹片或紧因件一样作用在元件线串上。
两个最后实施例可组合:在这种情况下,管可与导线相对应地被钻孔,并且外部装置可与导线相接触,例如用来发送/或接收信号。在另一个实施例中,外部装置与在管内部的部件1相对应地对管作标记。
根据另一个实施例,部件1是聚合物部件,该聚合物部件包括磁带,该磁带记录某些信息,例如关于管2的制造信息,或者该磁带为了跟踪目的而使用。部件1也可包括RFID标签、芯片、存储器、或允许它存储数据的任何其它集成电路。
根据另一个实施例,部件1是锭剂或片剂,该锭剂或片剂具有可控溶解性。除草剂、灭草剂、营养素维生素或添加剂可被溶解在被容装在管内的流体中。
根据另一个实施例,部件1是“气体滴落器”,即允许在管2中的一些气体从管2出来的滴落器,以便总体上净化一些水或液体,例如海、河、湖泊、水坝或游泳池等的水。
在图上使用的附图标记
1 部件,例如滴流器或滴流元件
2 管,例如灌溉管或软管
10 提升装置
10′ 在第一位置中的提升装置
10″ 在第二位置中的提升装置
20 传送单元或插入棒
22 插入棒的斜坡
24 插入棒的端部止挡部
30 滴流器的探测器
40 校准器
50 穿孔单元或夹紧轮
100 音圈
102 固定的永久磁铁
104 金属层
106 与铁不同的金属层
108 支撑元件
109 链接元件
110 螺钉
112 弯曲元件
a 角度
H 水平线

Claims (23)

1.一种用于管(2)的部件插入方法,包括如下步骤:
-从射出单元射出至少一个部件(1),
-利用部件行进单元使所述至少一个部件(1)在所述管的内部行进,
其特征在于,
所述部件(1)被放置在提升装置(1)上,并且所述提升装置(10)被机电地和/或电磁地和/或磁致伸缩地和/或电气地致动,利用所述提升装置(10)的上下提升动作将所述部件(1)在所述管内朝向所述管(2)的内表面射出,从而所述部件(1)首次与所述管(2)的内表面接触,以便在所述部件(1)在与所述管(2)的内表面碰撞时与所述内表面平行或大致平行的情况下将所述部件抵靠所述内表面焊接。
2.根据权利要求1所述的部件插入方法,所述部件(1)包括至少一个层或表面,该至少一个层或表面与所述管(2)的内表面相接触,并且该至少一个层或表面由适于被热焊接至所述管(2)的材料制成。
3.根据权利要求1或2所述的部件插入方法,所述部件(1)是滴流器。
4.根据权利要求1所述的部件插入方法,包括:
-使用探测器(30)探测所述部件,
-当所述探测器已探测到所述部件时,使用所述探测器(30)产生第一电信号,
-基于所述第一电信号触发所述提升装置(10)的提升。
5.根据权利要求4所述的部件插入方法,包括:
-利用所述第一电信号将所述提升装置(10)的提升与所述部件(1)的行进协调一致。
6.根据权利要求5所述的部件插入方法,包括:
-利用所述第一电信号计算所述部件行进单元的行进速率。
7.根据权利要求1所述的部件插入方法,包括:
-使用止挡端部(24)在所述部件被提升之前止挡所述部件。
8.根据权利要求1所述的部件插入方法,包括:
-使用所述提升装置(10)产生第二电信号,
-利用所述第二电信号来计算所述部件行进单元的行进速率。
9.根据权利要求1所述的部件插入方法,包括:
-利用所述提升装置(10)施加的压力以及所述管(2)的热量将所述部件(1)焊接至所述管的内表面。
10.一种用于管的部件插入装置,包括:
-射出单元,该射出单元用来射出至少一个部件(1),
-部件行进单元,该部件行进单元用来使所述至少一个部件在所述管(2)的内部行进,
-提升装置(10),该提升装置在致动时具有上下提升动作,
其特征在于,
所述提升装置(10)包括致动器,所述致动器是机电致动器和/或电磁致动器和/或磁致伸缩致动器和/或电气致动器,并且所述提升装置(10)被构造成用来将所述部件(1)朝向所述管(2)的内表面射出,以便当所述部件(1)被放置于所述提升装置(10)上且所述提升装置被致动时将所述部件抵靠所述内表面焊接,从而当所述部件(1)首次与所述管(2)的内表面接触时,所述部件(1)在与所述管(2)的内表面碰撞时与所述内表面平行或大致平行。
11.根据权利要求10所述的部件插入装置,所述致动器包括电磁线圈和/或压电装置和/或气动装置和/或电气-气动装置。
12.根据权利要求10所述的部件插入装置,所述致动器包括一个或多个音圈(100)。
13.根据权利要求10所述的部件插入装置,包括:
-探测器(30),该探测器用来探测所述部件(1),所述探测器(30)被构造成用来产生第一电信号,
-电子模块,该电子模块被构造成用来基于所述第一电信号而触发所述提升装置(10)的操作。
14.根据权利要求13所述的部件插入装置,所述提升装置(10)包括所述电子模块。
15.根据权利要求13所述的部件插入装置,所述射出单元包括所述电子模块。
16.根据权利要求13所述的部件插入装置,所述部件行进单元包括所述电子模块。
17.根据权利要求13所述的部件插入装置,所述电子模块被构造成用来使所述提升装置(10)的提升与所述部件(1)借助于所述部件行进模块的行进协调一致。
18.根据权利要求13所述的部件插入装置,所述电子模块被构造成用来计算所述提升装置的提升速率和/或所述部件行进装置的行进速率。
19.根据权利要求10所述的部件插入装置,包括用来止挡所述部件的端部止挡部(24)。
20.一种用来制造管的方法,包括:
-从挤制单元挤制所述管,
-使用校准单元校准所述管的直径,
-使用牵引单元在冷却单元中牵拉所述管,
-使用根据权利要求1的部件插入方法将至少一个部件(1)插入在所述管中。
21.根据以上权利要求所述的方法,所述部件(1)是滴流器,所述管是灌溉管,所述方法包括:
-使用穿孔单元(50)与每个所述滴流器相对应地对所述灌溉管钻孔。
22.一种用来制造管的系统,包括:
-挤制单元,该挤制单元用来挤制所述管,
-校准单元,该校准单元用来校准所述管的直径,
-牵引单元,该牵引单元用来在冷却单元中牵拉所述管,
-根据权利要求10所述的部件插入装置。
23.根据以上权利要求所述的系统,所述部件(1)是滴流器,所述管(2)是灌溉管,所述系统包括:
-穿孔单元,该穿孔单元用来与每个所述滴流器(1)相对应地对所述灌溉管钻孔。
CN201380032090.6A 2012-06-18 2013-03-15 制造灌溉管的方法和系统 Expired - Fee Related CN104520090B (zh)

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