JPH03286837A - Welding device of circular parts - Google Patents

Welding device of circular parts

Info

Publication number
JPH03286837A
JPH03286837A JP2087663A JP8766390A JPH03286837A JP H03286837 A JPH03286837 A JP H03286837A JP 2087663 A JP2087663 A JP 2087663A JP 8766390 A JP8766390 A JP 8766390A JP H03286837 A JPH03286837 A JP H03286837A
Authority
JP
Japan
Prior art keywords
welded
welding
sheets
pressure
circular member
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.)
Pending
Application number
JP2087663A
Other languages
Japanese (ja)
Inventor
Masanao Oshikawa
押川　正直
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SB Kawasumi Laboratories Inc
Original Assignee
Kawasumi Laboratories Inc
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 Kawasumi Laboratories Inc filed Critical Kawasumi Laboratories Inc
Priority to JP2087663A priority Critical patent/JPH03286837A/en
Publication of JPH03286837A publication Critical patent/JPH03286837A/en
Pending legal-status Critical Current

Links

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
    • 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
    • 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
    • B29C66/01—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
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
    • B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
    • 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
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B29C66/3452—Making complete joints by combining partial 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
    • B29C66/50—General 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
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
    • B29C66/53261—Enclosing tubular articles between substantially flat elements
    • B29C66/53262—Enclosing spouts between the walls of bags, e.g. of medical bags
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7148—Blood bags, medical bags

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To prevent the occurrence of leakage, while sheets and a circular member are perfectly welded by applying uniformly the pressurizing force of top forces onto each position of the member to be welded. CONSTITUTION:Two flexible synthetic resin sheets 16a, 16b are arranged between top forces 4b, 4c, 4d and a bottom force 4a, and a circular member 17 is arranged between the sheet 16a and the sheet 16b. While heaters 5a, 5b, 5c, 5d are heated by operating the temperature-controlling device 7 of the heater 5, air cylinders 6b, 6c, 6d are operated by the motion-controlling device 8 of the air cylinder 6, and the top forces 4b, 4c, 4d are lowered, whereby heat and pressure are applied to the synthetic resin sheets 16a, 16b and the circular member 17, and they are welded. The sheets 16a, 16b and the circular member 7 are pressure-bonded from three directions by the top forces 4b, 4c, 4d which are mutually linked, whereby each part receives uniform pressure and is welded uniformly.

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は１例えば血液バッグ、プラズマフェレーシス用
バッグ、高カロリー輸液バッグ、輸液バッグ、生食バッ
グ等の円形部品を有する医療用容器の円形部品の溶着装
置（以下溶着装置）を提供するちのである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to 1 a circular part of a medical container having a circular part, such as a blood bag, a plasmapheresis bag, a high-calorie infusion bag, an infusion bag, a saline bag, etc. We provide welding equipment (hereinafter referred to as welding equipment).

］ １１１６図は現在実施されている円形部品を有する医療
用容器の製造方法の概略図である。] FIG. 1116 is a schematic diagram of a currently practiced method of manufacturing a medical container having a circular part.

上金型２１と下金型２２の間に、二枚の合成樹脂シート
２３ａ、２３ｂとその間に円形部品２４を配置し、上金
型２１を垂下して熱と圧力を加えることにより溶着して
いた。二枚のシーｔ−２３ａ、２３ｂと円形部品２４の
三点が重なる箇所（Ａ部）に、充分な淋と圧着力が加わ
らないため、溶着不良ひいては内容物の漏れが発生する
要因となっている（第７図参照）。Two synthetic resin sheets 23a, 23b and a circular part 24 are placed between the upper mold 21 and the lower mold 22, and the upper mold 21 is suspended and welded by applying heat and pressure. Ta. Sufficient pressure and pressure is not applied to the area where the three points of the two sheets T-23a and 23b and the circular part 24 overlap (part A), resulting in poor welding and leakage of the contents. (See Figure 7).

これは格＠装置が上下一対の金型２１．２２からなり、
上金型２１のみが、垂下してシート２３ａ、２３ｂと円
形部品２４に一方向のみから圧力が作用するために、後
述する第４図に示すようにシートと円形部品２４の各箇
所にかかる圧着力に大きな差が生じることによる。This device consists of a pair of upper and lower molds 21 and 22,
Only the upper mold 21 hangs down and pressure acts on the sheets 23a, 23b and the circular part 24 from only one direction, so that the pressure is applied to various parts of the sheet and the circular part 24 as shown in FIG. 4, which will be described later. Due to the large difference in force.

そして、Ａ部においてはシート２３ａ、２３ｂと円形部
品２４を、圧着する力がほとんど作用しないことがわか
る（Ｐ′点位）。Furthermore, it can be seen that almost no force is applied to press the sheets 23a, 23b and the circular part 24 together in the A section (point P').

そこで、本発明者は以上の課題を解決するために鋭意検
討を重ねた結果次の発明に到達した。Therefore, the inventor of the present invention has made extensive studies to solve the above problems, and as a result has arrived at the following invention.

【課題を解決するための手段］ 第１図は、本発明の溶着装置ｌの概略図を示す、溶着装
置ｌは、溶着部２と制御部３から構成され、溶着部２に
は溶着金型４とエアーシリンダー６が配置されている。[Means for Solving the Problems] Fig. 1 shows a schematic diagram of a welding apparatus l of the present invention. 4 and an air cylinder 6 are arranged.

溶着金型４は、可動可能な上部金型４ｂ、４ｃ、４ｄと
固定された下部金型４ａとから構成され、これらの金型
４ａ、４ｂ、４ｃ、４ｄの内部には、ヒーター５ａ、５
ｂ、５ｃ、５ｄが植設されている。金型４ｂ、４ｃ、４
ｄには、エアーシリンダー６ｂ、６ｃ、６ｄが連結され
、金型４ｂ、４ｃ、４ｄは第１図および第２図に示すよ
うにエアーシリンダー６ｂ、６ｃ。The welding mold 4 is composed of movable upper molds 4b, 4c, 4d and a fixed lower mold 4a, and heaters 5a, 5 are installed inside these molds 4a, 4b, 4c, 4d.
b, 5c, and 5d are planted. Mold 4b, 4c, 4
Air cylinders 6b, 6c, and 6d are connected to the air cylinders 6b, 6c, and 6d, and the molds 4b, 4c, and 4d are connected to the air cylinders 6b, 6c, as shown in FIGS.

６ｄの可動軸１１ｂ、１１ｃ、１１ｄの前後運動により
運動する。It moves by the back and forth movement of movable shafts 11b, 11c, and 11d of 6d.

また、金型４ａ、４ｂ、４ｃ、４ｄのシール面１２ａ、
１２ｂ、１２ｃ、１２ｄは、平面のほかに縦筋状、横筋
状、格子模様状とすることができる。またテフロン加工
を施すことらできる。In addition, the sealing surfaces 12a of the molds 4a, 4b, 4c, 4d,
12b, 12c, and 12d may have a vertical striped shape, a horizontal striped shape, or a lattice pattern shape in addition to being flat. It can also be treated with Teflon.

複数に分割された金型４ｂ、４ｃ、４ｄが相互に連動し
、円形部品を多方向から押えるようにすることにより、
円形部品の各部において圧着力が平均化され、均一な溶
着状態を得ることができる。By making the molds 4b, 4c, and 4d, which are divided into a plurality of parts, interlock with each other and press the circular part from multiple directions,
The pressure bonding force is averaged in each part of the circular part, and a uniform welding state can be obtained.

第３図は本発明の溶着原理を示す概略図、第４図は従来
の方法の溶着原理を示す概略図である。FIG. 3 is a schematic diagram showing the welding principle of the present invention, and FIG. 4 is a schematic diagram showing the welding principle of the conventional method.

第３図において、半円（ｍ／２）の円周上の三等分側点
のそれぞれの中間点に、溶着金型４ｂ、４ｃ、４ｄの押
圧力ＦＯがかかると仮定すると、この中間点から６０だ
け移動した点Ｐにかかる圧着力ｆｏは次の■式で表わさ
れる。In FIG. 3, assuming that the pressing force FO of the welding molds 4b, 4c, and 4d is applied to the midpoint of each trisecting side point on the circumference of a semicircle (m/2), this midpoint The pressing force fo applied to a point P moved by 60 from the point P is expressed by the following equation (2).

ｆｏ＝ＦｏｃＯ５θ（０≦θ≦ｉ／１２）　　・・■■
式を第４図の溶着原理図に当てはめると、θはＯ≦θ≦
π／４であるから、すなわち点Ｐ’　　（θ：π／４）
において極小値ｆ（θ＝π／４）＝Ｏとなる。極大値ｆ
ｏ＝Ｆｏ　（θ＝Ｏ）との差は、ｆｏ−ｆ（θ＝ｘ／４
）＝Ｆｏ・・・・・・■となるが、本発明では、極大値
ｆＯと極小（Ｉｌｆ（θ”４／１２）との差は、ｆｏ−
ｆ（θ＝π／１２） ＝Ｆｏ−ＦｏＣＯ３（ｍ／１２） −（１−ＣＯ９（ｍ／１２）　）　Ｆ。fo=FocO5θ (0≦θ≦i/12) ・・■■
Applying the formula to the welding principle diagram in Figure 4, θ is O≦θ≦
Since π/4, that is, point P' (θ: π/4)
, the minimum value f(θ=π/4)=O. Maximum value f
The difference from o=Fo (θ=O) is fo−f(θ=x/4
)=Fo・・・■ However, in the present invention, the difference between the maximum value fO and the minimum value (Ilf(θ”4/12) is fo−
f(θ=π/12) =Fo−FoCO3(m/12)−(1−CO9(m/12))F.

４０．１３４Ｆｏ・・・・・・・・・　・　■となる。40.134Fo・・・・・・・・・■.

これは、各点における圧着力の最大と最小の差が少ない
（−１３，４％以内）ことを示している。すなわち、多
方向から押えることにより圧着力が溶着部分にほぼ均一
にかかることになり、熱による溶融との組み合わせで２
均一なシールが可能となる。また第６図のＡ部にも圧着
力を充分加えることができ、Ａ部での溶着不良はなくな
る。This indicates that the difference between the maximum and minimum pressure bonding force at each point is small (within -13.4%). In other words, by pressing from multiple directions, the pressure is applied almost uniformly to the welded part, and in combination with the melting due to heat,
Uniform sealing is possible. Furthermore, a sufficient pressure can be applied to the A section in FIG. 6, and there will be no welding defects at the A section.

次に本発明の使用方法について説明する。Next, a method of using the present invention will be explained.

第６図に示すように上部金型４ｂ、４ｃ、４ｄと下金型
４ａの間に二枚の可撓性合成樹脂シート１６ａ、１６ｂ
と該シート１６ａ、１６ｂの間に円形部材１７を配置す
る。As shown in FIG. 6, two flexible synthetic resin sheets 16a, 16b are placed between the upper molds 4b, 4c, 4d and the lower mold 4a.
A circular member 17 is placed between the sheets 16a and 16b.

ヒーター５の温度制御装置７を作動させ、ヒーター５ａ
、５ｂ、５ｃ、５ｄを加勢するとと６に、エアーシリン
ダー６の運動制御装置８によりエアーシリンダー６ｂ、
６ｃ、６ｄを作動させ、上部金型４ｂ、４ｃ、４ｄを下
降させて、前記合成樹脂シート１６ａ、１６ｂと円形部
材１７に熱と圧力をかけて溶着する。The temperature control device 7 of the heater 5 is activated, and the heater 5a
, 5b, 5c, and 5d, the motion control device 8 of the air cylinder 6 causes the air cylinder 6b,
6c and 6d are activated to lower the upper molds 4b, 4c and 4d, and heat and pressure are applied to the synthetic resin sheets 16a and 16b and the circular member 17 to weld them.

シート１６ａ、１６ｂと円形部材１７は、相互に連動さ
れる上部金型４ｂ、４ｃ、４ｄより三方向から圧着され
るので、各部分に均一に圧力を受け、均一に溶着される
。The sheets 16a, 16b and the circular member 17 are pressed together from three directions by the mutually interlocking upper molds 4b, 4c, and 4d, so that each part receives uniform pressure and is uniformly welded.

また、運動制御ｌ装置８はエアーシリンダー６の可動ス
ピードと圧着力を調整することができるので、ヒーター
５の温度制御装置７と連動制御することにより、シート
１６ａ、１６ｂと円形部材１７の溶着を均一に行うこと
ができる。Furthermore, since the movement control device 8 can adjust the movable speed and pressure bonding force of the air cylinder 6, welding of the sheets 16a, 16b and the circular member 17 can be performed by interlocking control with the temperature control device 7 of the heater 5. It can be done evenly.

［発明の効果］ 以上説明したように本発明は ■被溶着部材の各箇所に上金型の圧着力を均一装置を示
す。[Effects of the Invention] As explained above, the present invention provides (1) a device for uniformizing the pressure bonding force of the upper mold at each location of the welded member;

にかけることができるのでシート１６ａ、１６ｂと円形
部材１７を完全に溶着することができるので、リークの
発生がなく画一的な製品を提供することができる。Since the sheets 16a, 16b and the circular member 17 can be completely welded together, a uniform product can be provided without leakage.

■従来必要不可欠であったリークテストを実施しなくて
ちよく、歩留りが向上する。■There is no need to carry out leak tests, which were indispensable in the past, improving yields.

等の効果を有する優れた発明である。This is an excellent invention that has the following effects.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の溶着装置の該略図、第２図は第１図の
金型の作動状態を示す概略図、第３図は本発明の溶着原
理を示す概略図、第４図は従来の溶着原理を示す概略図
、第５図は本発明の７ｓ着方法を示す概略図、第６図は
従来の溶着方法を示す概略図、第７図は従来の溶着方法
により溶着したシートと円形部材の溶着部付近の拡大図
。Fig. 1 is a schematic diagram of the welding device of the present invention, Fig. 2 is a schematic diagram showing the operating state of the mold in Fig. 1, Fig. 3 is a schematic diagram showing the welding principle of the present invention, and Fig. 4 is a conventional diagram. Fig. 5 is a schematic diagram showing the 7s welding method of the present invention, Fig. 6 is a schematic diagram showing the conventional welding method, and Fig. 7 shows the sheet and circular shape welded by the conventional welding method. An enlarged view of the vicinity of the welded part of the member.

Claims (1)

【特許請求の範囲】[Claims] 溶着部２と制御部３から構成され、前記溶着部２にはヒ
ーター５を植設した溶着金型４と該溶着金型４に連結さ
れたエアーシリンダー６が配置され、前記制御部３には
前記ヒーター５の温度制御装置７と前記エアーシリンダ
ー６の運動制御装置８が配置され、制御部３によりヒー
ター５の温度とエアーシリンダー６の運動を連動制御す
ることにより、円形部品の外周を多点シールできること
を特徴とする溶着装置１。It is composed of a welding part 2 and a control part 3, and the welding part 2 is provided with a welding mold 4 in which a heater 5 is installed and an air cylinder 6 connected to the welding mold 4. A temperature control device 7 for the heater 5 and a motion control device 8 for the air cylinder 6 are disposed, and the control section 3 controls the temperature of the heater 5 and the motion of the air cylinder 6 in conjunction, thereby controlling the outer circumference of the circular part at multiple points. A welding device 1 characterized by being capable of sealing.
JP2087663A 1990-04-02 1990-04-02 Welding device of circular parts Pending JPH03286837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2087663A JPH03286837A (en) 1990-04-02 1990-04-02 Welding device of circular parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2087663A JPH03286837A (en) 1990-04-02 1990-04-02 Welding device of circular parts

Publications (1)

Publication Number Publication Date
JPH03286837A true JPH03286837A (en) 1991-12-17

Family

ID=13921192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2087663A Pending JPH03286837A (en) 1990-04-02 1990-04-02 Welding device of circular parts

Country Status (1)

Country Link
JP (1) JPH03286837A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5603802A (en) * 1993-04-23 1997-02-18 Chartex International Plc Method and apparatus for welding bags to rings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5603802A (en) * 1993-04-23 1997-02-18 Chartex International Plc Method and apparatus for welding bags to rings
US5695585A (en) * 1993-04-23 1997-12-09 Chartex International Plc. Method for welding bags to rings

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