CN100377850C - 薄片材料的裁剪方法 - Google Patents

薄片材料的裁剪方法 Download PDF

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CN100377850C
CN100377850C CNB2003801086245A CN200380108624A CN100377850C CN 100377850 C CN100377850 C CN 100377850C CN B2003801086245 A CNB2003801086245 A CN B2003801086245A CN 200380108624 A CN200380108624 A CN 200380108624A CN 100377850 C CN100377850 C CN 100377850C
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cutting
sheeting
deposited
wires
surplus
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CN1738701A (zh
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森田敏明
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Shima Seiki Mfg Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27—Means for performing other operations combined with cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/3806—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface
    • B26F1/3813—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work
    • B26F1/382—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7441—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc for making welds and cuts of other than simple rectilinear form
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint 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
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means 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
    • B29C65/7841—Holding or clamping means for handling purposes
    • B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/863—Robotised, e.g. mounted on a robot arm
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/936—Cloth or leather
    • Y10S83/939—Cloth or leather with work support
    • Y10S83/94—Cutter moves along bar, bar moves perpendicularly
    • Y10S83/941—Work support comprising penetratable bed
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y—GENERAL 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
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    • Y—GENERAL 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
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    • Y—GENERAL 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
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    • Y10T83/041—By heating or cooling
    • Y10T83/0414—At localized area [e.g., line of separation]
    • Y—GENERAL 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
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    • Y10T83/0476—Including stacking of plural workpieces
    • Y—GENERAL 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
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    • Y—GENERAL 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
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    • Y—GENERAL 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
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    • Y10T83/748—With work immobilizer

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  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Making Paper Articles (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
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Abstract

重叠薄片材料进行裁剪时，在裁剪线上或其稍外侧，或者在裁剪线内侧的窝边部分等处，扎入裁剪刀或钻孔锥等并上下移动进行加热，使薄片材料上下熔敷。即使对重叠透气性差的薄片材料进行裁剪，也能防止薄片材料卷缩或打滑，能够准确裁剪。

Description

薄片材料的裁剪方法
技术领域
本发明涉及薄片材料的裁剪。
背景技术
专利文献1特开平9-103991号公报(USP5791216)
专利文献2特开昭48-74683号公报(USP3780607)
裁剪薄片材料，是利用真空吸引等固定薄片材料，同时用裁剪刀或圆刀等进行裁剪。并且专利文件1公开了灵活利用圆刀及比其刀宽度短的裁剪刀，有效地裁剪薄片材料的技术。另外，专利文献2公开了在裁剪氯乙烯这样的低熔点薄片材料时，不从薄片材料中抽出裁剪刀，通过裁剪刀释放摩擦热，防止薄片材料的熔融的技术。即，薄片材料熔融时，会产生薄片材料相互粘附，留下印痕等，薄片材料的表面粗糙，裁剪线不清晰等问题，因此利用裁剪刀释放热的方法来防止熔融。
但是，将氯乙烯或合成皮革等透气性差的薄片材料重叠起来裁剪时，重叠在上方的薄片材料不能利用真空吸引充分固定，薄片材料卷缩或者打滑，不能准确裁剪。
发明内容
本发明的目的在于，即使将容易打滑的薄片材料重叠起来也能准确裁剪。
本发明的薄片材料的裁剪方法，其特征在于，将多张薄片材料上下重叠固定，沿预定的裁剪线裁剪成工件时，通过在上述裁剪线附近对上述工件的窝边或其外侧进行局部加热，使所述薄片材料上下相互熔敷，固定上下的薄片材料。
优选利用裁剪头的裁剪刀或钻孔锥进行所述局部加热。例如，用裁剪刀扎入重叠起来的薄片材料，在同样的位置上下移动，利用裁剪刀和薄片材料的摩擦使薄片材料相互熔敷。另外，例如利用钻头状的钻孔锥，像在重叠起来的薄片材料上开孔一样钻入，旋转钻孔锥，可以使薄片材料熔敷。或者，使用由往复刀构成的钻孔锥时，与裁剪用裁剪刀同样地扎入薄片材料并上下移动，可以使其熔敷。
另外，优选的是，每个工件在多处对裁剪线或其稍外侧进行上述局部加热。
另外，优选的是，每个工件在多处对裁剪线内侧的窝边进行上述局部加热。
此处的对应每个工件的多处是指例如一个工件的2～10处，优选3～6处左右。
另外，本发明的薄片材料的裁剪方法，其特征在于，将多张薄片材料上下重叠固定，沿预定的裁剪线裁剪成工件时，留有裁剪余量而对上述裁剪线上的多个部位进行裁剪后，对该裁剪余量进行裁剪。
另外，上述薄片材料是不透气性薄片材料，例如氯乙烯或合成革(合成皮革)等薄片材料，或者是对其他材料进行不透气性加工后得到的材料等时，本发明特别有效。另外，不透气性不限于完全不透气，也包括透气性低。
在本发明中，使薄片材料上下相互熔敷，或者在裁剪线上设置裁剪余量而进行裁剪，因此即使是不透气性的且容易打滑的氯乙烯或合成皮革等的薄片材料也能准确裁剪。另外，在裁剪透气性的薄片材料时，也能容易地固定薄片材料，利用真空吸引固定薄片材料时，可以使吸引力变小。熔敷部位是裁剪线上或其稍外侧，或者是裁剪线内侧的窝边等，因此能够不在工件上产生瑕疵地熔敷。
使薄片材料上下相互熔敷时，使用裁剪装置的裁剪头上装有的裁剪刀或钻孔锥时，利用一般的裁剪头就可以简单地进行熔敷。
在每个工件上多处进行熔敷，例如2～10处，优选在3～6处进行熔敷。熔敷部位是裁剪线上或其稍外侧，或者裁剪线的内侧的工件的窝边。所谓稍外侧是垂直于裁剪线的外侧5mm以内的区域。另外，裁剪线的外侧直接用于其他工件时，熔敷部位优选为裁剪线上或其内侧的窝边。
目标薄片材料是不透气性的材料时较为有效，这种薄片材料很难用真空吸引来固定，由于薄片材料与薄片材料之间存在空气因而容易打滑。另一方面，不透气性的薄片材料大多是氯乙烯或合成皮革、尼龙、聚酯等容易因热熔融，容易熔敷的材料。因此利用本发明，即使是不透气性的难以固定的薄片材料也可以上下重叠而准确地裁剪。
附图说明
图1是实施例的裁剪装置的主要部分俯视图。
图2是表示实施例的裁剪方法工作步骤的流程图。
图3是表示沿裁剪线或其稍外侧使薄片材料相互熔敷的实施例的示意图。
图4是表示在裁剪线内侧的窝边部分使薄片材料相互熔敷的实施例的示意图。
图5是表示在裁剪线上设置裁剪余量，最后裁剪该裁剪余量的实施例的示意图。
图6是表示图3、图4各实施例中的薄片材料间的熔敷部位的示意图。
具体实施方式
图1～图6表示实施例及其变形。在图1表示所用的裁剪装置2，4为裁剪台，6为裁剪台4上固定的毛刷，是刚毛的刷子。也可以是毛刷6之外的部件，只要具有是透气性或者具有空气吸引孔，利用真空泵16能将放置在其上的薄片材料吸住的部件即可。8是裁剪用的裁剪头，由于在臂10上沿图1的Y方向移动，臂10相对于轨道12沿图1的X方向移动，因此裁剪头8相对于裁剪台4能够沿XY方向移动。裁剪头8具有用于裁剪薄片材料等的裁剪刀或圆刀和用于在薄片材料上刻标记的钻孔锥(刻痕)，至少具有裁剪刀或钻孔锥中的一个。裁剪头8使裁剪刀上下移动，对重叠于毛刷6上并由氯乙烯等薄片覆盖固定的薄片材料捆进行裁剪。另外，在重叠的薄片材料的张数少时，例如裁剪一两张薄片材料时，也可以用圆刀裁剪。这种情况下，与实施例同样地预先利用裁剪刀或钻孔锥使薄片材料相互熔敷，使上侧的第二张薄片材料相对于下侧的薄片材料不错位。
14是控制部，输入裁剪式样，控制裁剪头8向XY方向的移动、裁剪或打孔、熔敷、裁剪余量等。另外，裁剪式样也可以在裁剪装置2中产生，或者在外部的设计装置等产生。16是真空泵，通过毛刷6真空吸引裁剪台4上的薄片材料而固定。
图2表示实施例的裁剪工作步骤。在步骤1中制成裁剪式样，在步骤2中选择薄片材料的固定方法。在薄片材料的固定方法中，有使薄片材料上下相互熔敷的“熔敷”，和在裁剪线上多处设置裁剪余量，在对裁剪余量之外的部分进行裁剪后裁掉裁剪余量的“留裁剪余量”。除此之外可以选择既不熔敷也不留裁剪余量，只利用真空吸引固定薄片材料。另外，无论熔敷还是留裁剪余量，都同时进行真空吸引。另外“熔敷”、“留裁剪余量”、“除此之外”(仅进行真空吸引)的选择，即可以人工输入控制部，也可以根据薄片材料的材质或裁剪式样等的数据在控制部自动选择。
进行熔敷时，在裁剪线的附近，也就是裁剪线的内侧的窝边或裁剪线上、或者裁剪线的稍外侧，使上下重叠的薄片材料相互熔敷。利用裁剪头上配置的裁剪刀或钻孔锥进行熔敷。例如在熔敷部位，将裁剪刀扎入至贯穿大部分重叠的薄片材料的位置，在相同位置高速地上下移动，薄片材料因摩擦热而上下相互熔敷。使用钻头状钻孔锥时，旋转钻孔锥，向下钻入以贯穿大部分重叠的薄片材料，在该位置旋转进行摩擦热熔敷。此处的“大部分”的是指例如重叠的薄片材料厚度的1/2～3/4左右。另外，使用裁剪刀状钻孔锥时，可以与裁剪刀同样地，在扎入重叠的薄片材料的状态下高速上下移动，使薄片材料相互熔敷(步骤3)。并且在熔敷后进行裁剪(步骤4)。但是，不需要事先在一个工件整周的多个部位进行熔敷，使一个部位熔敷，裁掉一根线条部分，对下一根线条例如熔敷一个部位，裁剪该线条即可。设置裁剪余量时，改变裁剪式样，在裁剪线上的多个部位追加裁剪余量(步骤5)。进行裁剪(步骤6)，最后裁掉裁剪余量(步骤7)。另外，熔敷和裁剪余量可以并用，这种情况下，在工作步骤上选择熔敷和裁剪余量二者。
图3是在裁剪线的稍外侧多处设置熔敷部位26的例子的示意图。20是将多张薄片材料重叠的厚度2cm～5cm左右的捆，薄片材料例如使用氯乙烯或合成皮革等不透气性的薄片。并且实际上在捆20上重叠图6所示的气密性的氯乙烯薄片34等，能够更有效地进行真空吸引。但是，在图3～图5中，省略了氯乙烯薄片的图示。22是裁剪刀，是裁剪头上装配的部件，也可以利用钻孔锥等其他部件。另外，也可以在裁剪头上设有内置加热器的棒状部件等，上下移动该部件进行熔敷。
上下移动裁剪刀22，在裁剪线的外侧多处、例如4处设置熔敷部位26。并且，用裁剪刀22扎入重叠的薄片材料，在该位置上下移动，使上下的薄片材料相互熔敷，可以固定薄片材料。因此不透气性的薄片材料，在仅利用真空泵吸引不能固定上下薄片材料的情况下也能进行准确的裁剪。熔敷部位26在工件的外侧，距离裁剪线的距离也是5mm左右而很小，不会给其他工件带来瑕疵。熔敷例如在裁剪前进行，也可以如熔敷-裁剪-熔敷-裁剪等，对各区间(裁剪的一根线条)交替进行熔敷和裁剪。28是工件内部的式样，是窝边内侧的区域，是缝制后出现在纤维制品表面的部分。
图4表示在裁剪线24内侧的窝边30上设置熔敷部位26的例子。此时，熔敷部位26处于窝边30，由于通过缝制而隐藏起来，因而不会在制品上留下瑕疵。
图5表示在裁剪线24上多处设置裁剪余量32的例子。优选设置裁剪余量的部位是工件的角等从薄片材料提起裁剪刀22进行方向转换等的部位。并且，优选裁剪余量32沿裁剪线24的长度比裁剪刀22的宽度短，也就是比裁剪刀22的裁剪方向的长度短。图5的实施例可以并用图3、图4的实施例，例如在裁剪线24紧外侧存在其他工件时，如图5所示，可以利用裁剪余量32。此外，并用图3的实施例和图4的实施例，同样在裁剪线24的外侧设置熔敷部位26时，可以利用窝边30设置熔敷部位26。即使利用裁剪刀22进行裁剪，在裁剪的薄片材料张数少的情况下，也可以使用未图示的圆刀等，裁剪头在动作中可以自由选择裁剪刀、钻孔锥、圆刀等工具，因此，也可以例如用裁剪刀或钻孔锥进行熔敷，用圆刀进行裁剪。
图6表示设有熔敷部位26的捆20的剖面，通过透气性的毛刷6，捆20中的薄片材料被吸引，固定在裁剪台上。并且，捆20上覆有气密性的氯乙烯薄片34，容易真空吸引。捆20的薄片材料为不透气性时，仅靠真空吸引很难固定薄片材料，因此利用熔敷或裁剪余量。并且，熔敷或裁剪余量的形成及裁剪对氯乙烯薄片34和捆20一并进行。因此，熔敷时裁剪刀22或钻孔锥从上侧贯穿氯乙烯薄片34，与下侧的捆20的薄片材料相互熔敷。
在实施例中，利用裁剪线上或其外侧，或者窝边等缝制后不露出的位置，通过熔敷或留出裁剪余量使薄片材料相互固定，即使重叠容易打滑的薄片材料也可以准确裁剪。而且熔敷或留裁剪余量利用裁剪头上配置的部件进行，不需要追加新部件。

Claims (3)

1.一种薄片材料的裁剪方法，其特征在于，上下重叠多张不透气性的薄片材料并进行真空吸引而固定，沿预定的裁剪线裁剪成工件时，
利用与裁剪头的裁剪刀或者钻孔锥的摩擦热在所述裁剪线上、或在所述裁剪线附近的所述工件的窝边或所述裁剪线的外侧进行局部加热，从而使所述薄片材料上下相互熔敷，而固定上下的薄片材料，并在此状态下进行裁剪；
或者使用裁剪头留有裁剪余量地对所述裁剪线上的多个部位进行裁剪后，使用所述裁剪头对该裁剪余量进行裁剪。
2.如权利要求1所述的薄片材料的裁剪方法，其特征在于，每个工件在多处对裁剪线或者其稍外侧进行所述局部加热。
3.如权利要求1所述的薄片材料的裁剪方法，其特征在于，每个工件在多处对裁剪线的内侧的窝边进行所述局部加热。
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