WO2005023515A1 - Reservoir d'eau de refroidissement et de moulage pour un profil complexe en matiere plastique - Google Patents

Reservoir d'eau de refroidissement et de moulage pour un profil complexe en matiere plastique Download PDF

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Publication number
WO2005023515A1
WO2005023515A1 PCT/CN2004/001031 CN2004001031W WO2005023515A1 WO 2005023515 A1 WO2005023515 A1 WO 2005023515A1 CN 2004001031 W CN2004001031 W CN 2004001031W WO 2005023515 A1 WO2005023515 A1 WO 2005023515A1
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WO
WIPO (PCT)
Prior art keywords
water tank
cooling
plastic profile
block
water
Prior art date
Application number
PCT/CN2004/001031
Other languages
English (en)
French (fr)
Other versions
WO2005023515A8 (fr
Inventor
Tingfu Zhang
Yunsheng Wang
Original Assignee
Lianyungang Jari Tooling Technology Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lianyungang Jari Tooling Technology Co., Ltd. filed Critical Lianyungang Jari Tooling Technology Co., Ltd.
Priority to US10/566,960 priority Critical patent/US7484947B2/en
Priority to GB0524333A priority patent/GB2418172B/en
Publication of WO2005023515A1 publication Critical patent/WO2005023515A1/zh
Publication of WO2005023515A8 publication Critical patent/WO2005023515A8/zh

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Classifications

    • 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
    • B29C48/90—Thermal 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
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • 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
    • B29C48/06—Rod-shaped
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • 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
    • B29C48/9115—Cooling of hollow articles
    • 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
    • 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
    • B29C48/916—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means using vacuum
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/006—Using vacuum
    • 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
    • B29C48/90—Thermal 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
    • B29C48/901—Thermal 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
    • B29C48/903—Thermal 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
    • 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
    • B29C48/90—Thermal 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
    • B29C48/905—Thermal 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 using wet calibration, i.e. in a quenching tank
    • 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
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • 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

Definitions

  • the invention relates to a cooling water tank used in the field of plastic profile extrusion, in particular to a cooling profile water tank for the extrusion and shaping of plastic profiles for continuous production of various plastic profiles.
  • the shaping structure of plastic profile extrusion dies has developed from early pure dry shaping to universal. Dry and wet mixed shaping structures have greatly improved the production speed of plastic profiles.
  • the cooling water tank as an indispensable part of the entire system of the extrusion die, plays an increasingly important role in enhancing the cooling effect of the plastic profile, increasing the extrusion speed, and stabilizing the internal quality of the profile.
  • extrusion dies are developing in the direction of high speed and high performance.
  • Existing water tank devices used in the production of plastic profiles such as the Chinese utility model patent "A plastic profile extrusion cooling device" (patent number ZL01237399. 0, announcement number
  • CN2491214Y provides a cooling water tank with a set of shaped templates inside the tank body.
  • the arrangement from the inlet to the outlet of the water tank is arranged in a close-packed state, which can reduce the manufacturing cost of the water tank, but does not solve the problems of uniformly cooling the profile and improving the cooling efficiency. Therefore, the development of a new type of cooling shaped water tank with better cooling capacity, high efficiency, uniform cooling and other performance has become one of the technical problems urgently needed in this field. Summary of the invention
  • the purpose of the present invention is to overcome the deficiencies and shortcomings of the prior art, and to provide a cooling and setting water tank suitable for continuous production of plastic profile extrusion, so as to improve the cooling efficiency and uniformity of cooling during extrusion of plastic profile, which is sufficient. Ensure the molding efficiency and quality of the profile under high-speed extrusion.
  • the present invention provides a cooling and shaping water tank for plastic profile extrusion, comprising a tank body, which is composed of front and rear end blocks, a water tank top cover, two water tank side plates, a water tank bottom plate, and several leg plates. It is formed by screwing or articulation.
  • a water inlet pipe is provided near the front end block of the side plate of the water tank, a drain pipe is near the rear end block of the side plate of the water tank, and a vacuum valve and vacuum are provided on the cover of the water tank.
  • a table in which a plurality of sizing blocks and a plurality of sink plates are arranged along the length direction inside the box, and the sizing blocks and the sink plates are arranged at intervals in the box body, and the density of the arrangement is from the front end to the The back end gradually becomes dense and thin.
  • the sizing block and the sink plate are respectively inserted in the slots on the inner side of the side panel of the water tank, and have degrees of freedom within a restricted range of front-back, left-right, and up-down directions.
  • the number of the shaped blocks is 5-30.
  • the number of the water collecting plates is 3-28.
  • U-shaped water passing grooves are formed on the four perimeters of the shaped block.
  • the width of the U-shaped water tank is 0.2 to 0.8, and the depth of the U-shaped water tank is 2 to 15 mm depending on the size of the shape block.
  • the long side of the cavity channel of the shaping block is provided with an adjusting structure, and the adjusting mechanism includes a transparent parallel to the long side cavity surface at a distance of 1 to 8 mm from the long side cavity surface of the cavity channel.
  • the adjusting screw can abut against the upper edge of the cutting slot, and the width of the cutting slot is 0.1 to 2.0 mm, and the length is the same as the long side of the cavity channel, or it is slightly longer or shorter.
  • the shape of the inner cavity of the water collecting plate is a shape in which the cross-sectional shape of the plastic profile is enlarged toward the periphery, and the enlarged radial distance is 2 to 8 mm. The enlarged, overlapping, and similar shapes of the enlarged shape are more complicated.
  • the material of the water collecting plate is selected from one of stainless steel, aluminum alloy, plexiglass, and other materials with antirust and corrosion resistance properties.
  • the advantage of the present invention is that because the water flow condition is changed through the use of a catch plate and a new type of shaped block, a special alternating circulating flow of cooling water is formed in the water tank, which accelerates the heat exchange between the profile and the cooling water. Compared with the prior art, it has high cooling efficiency and cooling uniformity, and can fully guarantee the molding efficiency and quality of the profile under the high-speed extrusion state.
  • FIG. 1 is a schematic front view of an embodiment of the present invention
  • FIG. 2 is a schematic top view of an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a leftward arrow B shown in FIG. 1 according to an embodiment of the present invention
  • Figure 4 is a front view, a bottom view and a left view of the parts of the shaping block
  • Fig. 5 is a front view and a top view of parts of the water collecting plate. Symbols in the figure
  • FIG. 1 FIG. 1 and FIG. 3
  • the cooling and setting water tank for extrusion of plastic profiles disclosed in the embodiment includes a box.
  • the body 1 is composed of front and rear end blocks 11, a water tank cover 12, two water tank side plates 13, a water tank bottom plate 14, and several leg plates 15 by screwing or hinged joints, and near the front end of the water tank side plate 13
  • a water inlet pipe 16 is provided at the block 11
  • a drain pipe 17 is provided at the block 11 near the rear end of the water tank side plate 13, and a vacuum valve 121 and a vacuum gauge 122 are provided on the water tank upper cover 12.
  • a plurality of shaping blocks 2 and a plurality of water collecting plates 3 are arranged along the length direction in the interior, and the shaping blocks 2 and the water collecting plates 3 are arranged spaced apart from each other in the box 1, and the density of the arrangement is from the front to the rear.
  • each of the four perimeters of the shaping block 2 is provided with a flat U-shaped U-shaped water passing groove 21.
  • the width of the U-shaped water tank 21 is 0.2 to 0.8 of the two sides of the sizing block, and the depth of the U-shaped water tank 21 is 2 to 15 mm depending on the size of the sizing block. In this embodiment, the width of the U-shaped water tank 21 is about 0.7 of the two sides of the sizing block, and the depth of the U-shaped water tank 21 is 8 mm.
  • an adjustment structure 22 is provided on the long side of the cavity channel of the shaping block 2, and the adjustment mechanism 22 includes parallel to the cavity surface of the cavity channel 1 to 8 mm from the long side cavity surface in parallel.
  • This embodiment is a screw hole 222.
  • the screw hole 222 and the cavity surface The bottom hole is vertical and transparent to the lower edge of the slit 221, and there is an adjustment screw 223 matched with the screw hole 222.
  • the adjustment screw 223 can abut against the upper edge of the slit 221. If the cavity channel of the shaping block 2 does not have a long side, the adjusting structure 22 may not be provided; if the cavity channel of the shaping block 2 has multiple long sides, more than one adjusting structure 22 may be provided, respectively, corresponding to the positions of the long sides. adapt. When the long side is longer, the slit 221 is also longer. At this time, two or more screw holes 222 may be opened, and multiple adjustment screws 223 may participate in adjustment together.
  • the width of the slit 221 is 0.1 to 2.0 mm, and the length is the same as the long side of the cavity channel, or it is slightly longer or shorter. This embodiment is the same.
  • the shape of the inner cavity 31 of the water collecting plate 3 is the shape of the cross-section profile (cavity channel) of the plastic profile expanded toward the periphery, and the enlarged radial distance is 0.5 to 8 mm. After the enlargement, the shape of the inner cavity 31 of the water collecting plate 3 can be simplified at the overlapping, similar, and complicated shapes.
  • the shape of the inner cavity 31 of the water collecting plate 3 is 5 mm larger than the cross-sectional shape of the plastic profile shown in the figure (the cavity channel) toward the periphery, and the shape of the inner cavity is simplified. Passing water, as shown in Figure 5 in a simplified shape of the inner cavity 31.
  • the material of the water collecting plate 3 is selected from one of stainless steel, aluminum alloy, plexiglass, and other materials having antirust and corrosion resistance properties.
  • the material of the sink plate 3 in this embodiment is a stainless steel plate.
  • the plastic profiled material enters the front end block 11 of the water tank 1 in the direction indicated by the arrow A in FIG. 1.
  • the said shaping block 2 And the sink plate 3 are arranged one after the other in the box 1 and the density of the arrangement is gradually denser and denser from the front to the rear.
  • the cooling water first passes through the U-shaped water trough 21 around the sizing block 2, and then Pass through the 0.5 ⁇ 8 mm gap between the inner cavity 31 of the water collecting plate 3 and the profile, and then pass through the U-shaped water trough 21 around the next sizing block 2, and then from the inner cavity 31 of the water collecting plate 3 and
  • the 0.5 ⁇ 8 mm gap between the profiles passes through, so as to reciprocate, as shown by the arrow in the water tank 1 in Fig. 1 and Fig.
  • the cooling water passes uniformly against the outer surface of the profile when passing through the inner cavity 31 of the water collecting plate 3, so that the profile can be cooled uniformly and efficiently under high-speed extrusion. Due to the high cooling efficiency, the molding effect and quality of the profile under high-speed extrusion can be fully guaranteed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

塑料异型材挤出用冷却定型水箱 技术领域
本发明涉及一种塑料异型材挤出领域所使用的冷却水箱， 特别是 适用于连续生产的各种塑料异型材的冷却和定型的塑料异型材挤出用 冷却定型水箱。 背景技术
塑料异型材挤出模具定型结构从早期的纯干式定型发展到普遍釆 用干、 湿混合式定型结构， 使塑料型材的生产速度得到很大的提高。 冷却水箱， 作为挤出模具整个系统中不可缺少的一部分， 对于加强塑 料型材的冷却效果、 提高挤出速度、 稳定型材内在质量， 发挥着越来 越大的作用。 目前， 挤出模具正向高速、 高性能方向发展， 现有塑料 异型材生产过程中所使用的水箱装置， 如中国实用新型专利 "一种塑 料异型材挤出定型冷却装置" （专利号 ZL01237399.0 , 公告号
CN2472911Y) ， 以及中国实用新型专利 "一种塑料异型材定型模装 置" （专利号 ZL03228110.0, 公告号 CN2594001Y) ， 其所提供的 冷却水箱装置， 是通过在水箱内定型块靠近型腔面的位置加工设置通 水凹槽或过水孔， 以实现对型材局部的均勾冷却或实现冷却水的涡 流， 上述两种装置虽然克服了干式定型模热交换相对较差的缺陷， 但 是其冷却能力仍然很有限， 当对挤出模具提出高速度、 高性能的要求 时， 现有的定型冷却装置显然不能适应这样的需要。 中国实用新型专 利 "塑料异型材生产用冷却水箱" （专利号 ZL01262430.6 , 公告号 CN2491214Y) ， 提供了一种在水箱箱体内侧设置一组定型模板的冷 却水箱， 该一组定型模板由水箱进口至水箱出口呈前密后疏状态布 置， 可降低水箱的制造成本， 但是并没有解决对型材均匀冷却与提高 冷却效率的问题。 所以， 开发冷却能力更好的、 具有高效、 均勾冷却 等性能的新型冷却定型水箱已成为本领域的急需解决的技术问题之 发明内容
本发明的目的在于克服现有技术的不足和缺陷， 提供一种适用于 连续生产的塑料异型材挤出用冷却定型水箱， 以提高塑料异型材挤出 时的冷却效率和冷却均勾性， 充分保证高速挤出状态下型材的成型效 率及质量。 为达上述目的， 本发明提供一种塑料异型材挤出用冷却定型水 箱， 包括一箱体， 其由前后各一端块、 一水箱上盖、 两个水箱侧板、 一水箱底板、 数个脚板通过螺接或铰接而组成， 在其水箱侧板的近前 端块处设有进水管， 在其水箱侧板的近后端块处设有排水管， 在水箱 上盖上设有真空阀和真空表， 其中， 在箱体内部沿长度方向设置有数 个定型块和数个汇水板， 所述的定型块和汇水板在箱体内相互逐个间 隔排布， 并且其排布的密度自前端至后端逐渐由密而疏。 所述的定型块和汇水板分别插置在所述的水箱侧板内侧的插槽 中， 并具有前后、 左右、 上下各方向受限范围之内的自由度。 所述的定型块的数量为 5〜30个。 所述的汇水板的数量为 3〜28个。 所述的定型块的四周边开有 U形过水槽。 所述的 U形过水槽的宽度为定型块边长的 0.2〜0.8， U形过水槽 的深度视定型块的大小不同定为 2〜15毫米。 所述的定型块的型腔通道的长边上设有调节结构， 该调节机构包 括在距离型腔通道的长边型腔面 1〜8 毫米处、 平行于该长边型腔面 的通透切缝， 以及位于该长边型腔面上设置的至少一通透螺孔， 螺孔 与该型腔面垂直、 且其底孔与该切缝下缘通透， 其中有与螺孔配合的 调节螺钉， 该调节螺钉可顶抵于所述的切缝的上缘 所述的切缝的宽度为 0.1〜2.0毫米， 长度与该型腔通道的长边相 同， 或略长， 或略短。 所述的汇水板的内腔形状为塑料异型材的截面外形向外围扩大的 形状， 其扩大的径向距离为 2〜8 毫米， 对于扩大后外形相重复处、 相近处、 以及外形较复杂处， 汇水板的内腔形状可予以简化。 所述的汇水板的材质选自不锈钢、 合金铝、 有机玻璃、 以及其他 具有防锈和耐腐蚀性能的材料其中之一。 本发明的优点在于， 由于通过使用汇水板并结合新型结构的定型 块， 改变了水流状况， 在水箱内形成一种特殊的冷却水的交替循环流 动， 加速了型材与冷却水的热交换， 相比于现有技术， 具有很高的冷 却效率和冷却均匀性， 能充分保证高速挤出状态下型材的成型效率及 质量。 附图说明
图 1为本发明一实施例的正视示意图；
图 2为本发明一实施例的俯视示意图；
图 3为本发明一实施例图 1所示的 B向左视示意图；
图 4为定型块的零件正视图、 仰视图和左视图；
图 5为汇水板的零件正视图和俯视图。 图中符号说明
I 箱体
I I 前、 后端块
12 水箱上盖
121 真空阀 122 真空表
13 水箱侧板
14 水箱底板
15 脚板 .
16 进水管
17 出水管
2 定型块
21 U形过水槽
22 调节机构
221 切缝
222 螺孔
223 调节螺钉
3 汇水板
31 内腔 具体实施方式
下面结合附图和实施例详细说明本发明的具体实施方式。 如图 1、 图 2和图 3所示， 为本发明的一个实施例的正视示意图、 俯视示意图和 B 向左视示意图， 实施例所揭示的塑料异型材挤出用冷 却定型水箱， 包括一箱体 1， 其由前后各一端块 11、 一水箱上盖 12、 两个水箱侧板 13、 一水箱底板 14、 数个脚板 15通过螺接或铰接而组 成， 在其水箱侧板 13的近前端块 11处设有进水管 16， 在其水箱侧板 13的近后端块 11处设有排水管 17， 在水箱上盖 12上设有真空阀 121 和真空表 122， 其中， 在箱体 1 内部沿长度方向设置有数个定型块 2 和数个汇水板 3， 所述的定型块 2和汇水板 3在箱体 1 内相互逐个间 隔排布， 并且其排布的密度自前端至后端逐渐由密而疏。 如图 1和图 2所示， 所述的定型块 2和汇水板 3分别插置在所述 的水箱侧板 13 内侧的插槽中， 并具有前后、 左右、 上下各方向受限 范围之内的自由度 所述的定型块 2的数量为 5〜30个， 如图 1和图 2所示， 本实施 例中定型块 2的数量为 14个。 所述的汇水板 3的数量为 3〜28个， 如图 1和图 2所示， 本实施 例中汇水板 3的数量为 9个。 如图 4所示， 所述的定型块 2的四周边各开有一个扁 U形的 U 形过水槽 21。 所述的 U形过水槽 21 的宽度为定型块 2边长的 0.2〜0.8， U形 过水槽 21 的深度视定型块的大小不同定为 2〜15 毫米。 本实施例中 U形过水槽 21 的宽度为定型块 2边长的 0.7左右， U形过水槽 21 的 深度为 8毫米。 如图 4所示， 所述的定型块 2的型腔通道的长边上设有一个调节 结构 22， 该调节机构 22包括在距离型腔通道的长边型腔面 1〜8毫米 处、 平行于该长边型腔面的通透切缝 221， 以及位于该长边型腔面上 设置的至少一通透螺孔 222， 本实施例为一个螺孔 222， 螺孔 222 与 该型腔面垂直、 且其底孔与该切缝 221 下缘通透， 其中有与螺孔 222 配合的调节螺钉 223， 该调节螺钉 223可顶抵于所述的切缝 221 的上 缘。 如果定型块 2的型腔通道没有长边， 可以不设调节结构 22; 如果 定型块 2的型腔通道具有多个长边，可以设置一个以上的调节结构 22， 分别与长边所在的位置相适应。 当长边较长时， 切缝 221 也较长， 此 时可以开有两个或更多个的螺孔 222， 多个调节螺钉 223 共同参与调 节。 所述的切缝 221的宽度为 0.1〜2.0毫米， 其长度与该型腔通道的 长边相同， 或略长， 或略短。 本实施例为相同。 如图 5所示， 所述的汇水板 3 的内腔 31 的形状为塑料异型材的 截面外形 （型腔通道） 向外围扩大的形状， 其扩大的径向距离为 0.5〜 8 毫米， 对于扩大后外形相重复处、 相近处、 以及外形较复杂处， 汇 水板 3的内腔 31的形状可予以简化。本实施例中， 汇水板 3的内腔 31 的形状比图示塑料异型材的截面外形 （型腔通道） 向外围扩大的径向 距离为 5 毫米， 并简化了其内腔形状， 用于过水， 如图 5 中内腔 31 的简化形状。 所述的汇水板 3 的材质选自不锈钢、 合金铝、 有机玻璃、 以及其 他具有防锈和耐腐蚀性能的材料其中之一。 本实施例的汇水板 3 的材 质为不锈钢板。 在挤出生产时， 塑料异型材按照图 1中 A箭头所示的方向进入水 箱 1的前端块 11， 当型材逐渐成型并通过定型块 2和汇水板 3时， 由 于所述的定型块 2和汇水板 3在箱体 1 内相互逐个间隔排布， 并且其 排布的密度自前端至后端逐渐由密而疏， 冷却水首先从定型块 2 四周 的 U形过水槽 21经过，接着从汇水板 3的内腔 31与型材之间的 0.5〜 8毫米间隙通过， 然后再从下一个定型块 2 四周的 U形过水槽 21 经 过， 接着又从汇水板 3的内腔 31与型材之间的 0.5〜8毫米间隙通过， 如此循环往复， 如图 1和图 2中水箱 1 内的箭头所示， 从而在水箱长 度方向形成所谓 "外周一内圈一外周" 的交替循环流动， 又因冷却水 经过汇水板 3 的内腔 31 时是均匀地贴着型材外表面通过的， 所以使 型材在高速挤出状态下得到既均匀又高效率的冷却。 由于冷却效率 高， 就能充分保证高速挤出状态下型材的成型效果及质量。

Claims

权 利 要 求 书
1、 一种塑料异型材挤出用冷却定型水箱， 包括一箱体， 其由前 后各一端块、 一水箱上盖、 两个水箱侧板、 一水箱底板、 数个脚板通 过螺接或铰接而组成， 在其水箱侧板的近前端块处设有进水管， 在其 水箱侧板的近后端块处设有排水管， 在水箱上盖上设有真空阀和真空 表， 其特征在于， 在箱体内部沿长度方向设置有数个定型块和数个汇 水板， 所述的定型块和汇水板在箱体内相互逐个间隔排布， 并且其排 布的密度自前端至后端逐渐由密而疏。
2、 根据权利要求 1 所述的塑料异型材挤出用冷却定型水箱， 其 中， 所述的定型块和汇水板分别插置在所述的水箱侧板内侧的插槽 中， 并具有前后、 左右、 上下各方向受限范围之内的自由度。
3、 根据权利要求 1 所述的塑料异型材挤出用冷却定型水箱， 其 中， 所述的定型块的数量为 5〜30个。
4、 根据权利要求 1 所述的塑料异型材挤出用冷却定型水箱， 其 中， 所述的汇水板的数量为 3〜28个。
5、 根据权利要求 1 所述的塑料异型材挤出用冷却定型水箱， 其 中， 所述的定型块的四周边开有 U 形过水槽。
6、 根据权利要求 5 所述的塑料异型材挤出用冷却定型水箱， 其 中， 所述的 U 形过水槽的宽度为定型块边长的 0.2〜0.8， U 形过水 槽的深度视定型块的大小不同定为 2〜15毫米。
7、 根据权利要求 1 所述的塑料异型材挤出用冷却定型水箱， 其 中， 所述的定型块的型腔通道的长边上设有调节结构， 该调节机构包 括在距离型腔通道的长边型腔面 1〜8 毫米处、 平行于该长边型腔面 的通透切缝， 以及位于该长边型腔面上设置的至少一通透螺孔， 螺孔 与该型腔面垂直、 且其底孔与该切缝下缘通透， 其中有与螺孔配合的 调节螺钉， 该调节螺钉可顶抵于所述的切缝的上缘。
8、 根据权利要求 7 所述的塑料异型材挤出用冷却定型水箱， 其 中， 所述的切缝的宽度为 0.1〜2.0毫米， 长度与该型腔通道的长边相 同， 或略长， 或略短。
9、 根据权利要求 1 所述的塑料异型材挤出用冷却定型水箱， 其 中， 所述的汇水板的内腔形状为塑料异型材的截面外形向外围扩大的 形状， 其扩大的径向距离为 0.5〜8毫米， 对于扩大后外形相重复处、 相近处、 以及外形较复杂处， 汇水板的内腔形状可予以简化。
10、 根据权利要求 1所述的塑料异型材挤出用冷却定型水箱， 其 中， 所述的汇水板的材质选自不锈钢、 合金铝、 有机玻璃、 以及其他 具有防锈和耐腐蚀性能的材料其中之一。
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CN2491214Y (zh) * 2001-08-26 2002-05-15 中国船舶重工集团公司第七研究院第七一六研究所 塑料异型材生产用冷却水箱

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GB2418172B (en) 2007-05-02
CN2656113Y (zh) 2004-11-17
GB0524333D0 (en) 2006-01-04
US7484947B2 (en) 2009-02-03
GB2418172A (en) 2006-03-22
WO2005023515A8 (fr) 2005-11-24

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