JP3352806B2 - Method and apparatus for centering blow pin in blow molding machine - Google Patents
Method and apparatus for centering blow pin in blow molding machineInfo
- Publication number
- JP3352806B2 JP3352806B2 JP6682994A JP6682994A JP3352806B2 JP 3352806 B2 JP3352806 B2 JP 3352806B2 JP 6682994 A JP6682994 A JP 6682994A JP 6682994 A JP6682994 A JP 6682994A JP 3352806 B2 JP3352806 B2 JP 3352806B2
- Authority
- JP
- Japan
- Prior art keywords
- blow
- pin
- molding machine
- blow pin
- centering
- 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 - Lifetime
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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/58—Blowing 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【0001】[0001]
【産業上の利用分野】この発明は、中空成形機における
ブローピンの打込心出方法及びその装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for centering a blow pin in a blow molding machine.
【0002】[0002]
【従来の技術】中空成形機において、ブロー成形用金型
のキャビティ内にパリソンが搬送されると、このパリソ
ンは金型に保持され、金型が型締装置にて締結されてそ
の金型に打込装置のブローピンを挿入し、このブローピ
ンから加圧空気をパリソン内に吹き込むと、パリソンは
キャビティの形状に沿うボトル等の容器等にブロー成形
される。2. Description of the Related Art In a blow molding machine, when a parison is conveyed into a cavity of a blow molding die, the parison is held in the die, and the die is fastened by a mold clamping device to be transferred to the die. When the blow pin of the driving device is inserted and pressurized air is blown into the parison from the blow pin, the parison is blow-molded into a container such as a bottle that conforms to the shape of the cavity.
【0003】このパリソンから容器等を成形するための
打込装置は、図5及び図6に示すように、基台39にレ
ール等を介し前後方向へ移動可能に支持された所定高さ
の支持台40に、左右方向へ位置調節可能に固定された
プレート41が設けられ、このプレート41に上下方向
へ位置調節可能に固定されたプレート42が支持され、
このプレート42にアーム43が固定され、このアーム
43の上部に流体圧シリンダー44が固定され、アーム
43の下部にガイドロッド45が垂下して支持されてい
る。As shown in FIGS. 5 and 6, a driving device for forming a container or the like from a parison has a support at a predetermined height supported on a base 39 via a rail or the like so as to be movable in the front-rear direction. The plate 40 is provided with a plate 41 fixed so that the position can be adjusted in the left-right direction, and a plate 42 fixed so that the position can be adjusted in the vertical direction is supported by the plate 41.
An arm 43 is fixed to the plate 42, a fluid pressure cylinder 44 is fixed to an upper portion of the arm 43, and a guide rod 45 is supported by a lower portion of the arm 43.
【0004】流体圧シリンダー44から垂下するピスト
ンロッド46に連結され、ガイドロッド45に沿って昇
降可能なスライドブロック47が設けられている。スラ
イドブロック47には中心部にエア吹込ノズルを、その
外周部に冷却水路を有するブローピン48が垂下し、こ
のブローピン48はガイドロッド45の下端部に連結支
持されたストリッパプレート49に固定したストリッパ
ブッシュ50に挿入されている。[0004] A slide block 47 is provided which is connected to a piston rod 46 hanging down from a fluid pressure cylinder 44 and which can move up and down along a guide rod 45. An air blowing nozzle is provided at the center of the slide block 47, and a blow pin 48 having a cooling water channel is provided at the outer periphery thereof. The blow pin 48 is fixed to a stripper plate 49 which is connected and supported at the lower end of the guide rod 45. 50.
【0005】図7に示すように、ブローピン48の上端
部には、冷却水とエアを供給する配管を接続するノズル
ボディ51が連結され、このノズルボディ51にスクリ
ュウロッド52が連結され、このスクリュウロッド52
はスライドブロック47に固定された支持ブロック53
に螺合して支持され、スライドブロック47の上部に突
出している。このスクリュウロッド52はその上端部を
治具で回して捩込み具合を調節し、ブローピン48と一
体のカッティングスリーブ48aと金型54に設けられ
たカウンタプレート55との突き当て量の徴調整をする
ものである。As shown in FIG. 7, a nozzle body 51 for connecting a pipe for supplying cooling water and air is connected to the upper end of the blow pin 48, and a screw rod 52 is connected to the nozzle body 51. Rod 52
Is a support block 53 fixed to the slide block 47
And project above the slide block 47. The screw rod 52 has its jig turned at its upper end to adjust the degree of screwing, and adjusts the amount of contact between the cutting sleeve 48a integral with the blow pin 48 and the counter plate 55 provided on the mold 54. Things.
【0006】そこで、図7に示すように、ブローピン4
8の下部に筒状のパリソンを挟んで型締めされた半割構
成の金型54,54が型締装置(図示略)を介して移動
し、その金型54,54の吹込口のあるカウンタープレ
ート55,55の真上にブローピン48が位置すると、
流体圧シリンダー44に油又はエアを供給し、ピストン
ロッド46を伸長させてスライドブロック47をガイド
ロッド45に沿って押し下げる。Therefore, as shown in FIG.
The molds 54, 54 having a half-split configuration clamped with a cylindrical parison under the lower part 8 move via a mold-clamping device (not shown), and the counters with the blow-in ports of the molds 54, 54 are provided. When the blow pin 48 is located directly above the plates 55, 55,
Oil or air is supplied to the fluid pressure cylinder 44 to extend the piston rod 46 and push down the slide block 47 along the guide rod 45.
【0007】図7に仮想線図示のように、ブローピン4
8がストリッパブッシュ50から垂下して吹込口に挿入
される。したがって、ブローピン48からエア吹き込み
がなされ、そのパリソンが成形型54,54のキャビテ
ィに沿って膨満することにより成形品56が成形される
というものである。[0007] As shown by a phantom line in FIG.
8 hangs down from the stripper bush 50 and is inserted into the air inlet. Therefore, air is blown from the blow pin 48, and the parison expands along the cavities of the molds 54, 54, whereby the molded article 56 is molded.
【0008】この成形において、ブローピン48は金型
54に保持されるパリソンの中心、換言するとカウンタ
ープレート55の吹込口57との心が合致していなけれ
ば、容器56の口部分が変形したり、容器56の口部天
面を仕上げることができなくなり、容器56の不良品が
でてしまうことになる(後打成形)ほか、カウンタープ
レート55と衝接してパリソン58を切断するブローピ
ン48側のカッティングスリーブ48aの寿命が短くな
る。In this molding, if the center of the parison held by the mold 54, that is, the center of the blow port 57 of the counter plate 55 is not aligned with the blow pin 48, the opening of the container 56 may be deformed. The top surface of the mouth of the container 56 cannot be finished, resulting in defective products of the container 56 (post-molding). In addition, cutting on the blow pin 48 side which cuts the parison 58 in contact with the counter plate 55. The life of the sleeve 48a is shortened.
【0009】従って、中空製品を作るにあたり、前記中
心位置合わせ作業、すなわち、金型のカウンタープレー
トとブローピンとの心出作業が重要な要素となってい
る。そこで、心出作業は調整ボルト53a(図7)によ
り試行錯誤を繰り返しながら調節するなど、オペレータ
ーの永年の経験と勘に頼っているのが現状である。Therefore, in producing a hollow product, the centering operation, that is, the centering operation between the mold counter plate and the blow pin is an important factor. In view of this, the centering work currently depends on the operator's many years of experience and intuition, such as performing adjustment by repeating trial and error with the adjustment bolt 53a (FIG. 7).
【0010】[0010]
【発明が解決しようとする課題】しかしながら、オペレ
ーターの経験と勘に頼ることは、精確な心出しができな
くて、とかく不良製品の発生やカウンタープレート55
及びカッティングスリーブ48aの摩滅損傷を招くこと
が避けられない。However, depending on the experience and intuition of the operator, accurate centering cannot be performed, and the occurrence of defective products and the counter plate
And it is inevitable that the cutting sleeve 48a is worn away.
【0011】そこで、この発明は上記事情に鑑みて、非
熟練者でも簡単に精確な心出しできる、中空成形機にお
ける打込心出方法及びその装置を提供する。In view of the above circumstances, the present invention provides a driving centering method for a hollow molding machine and a device therefor that can be easily and accurately centered even by a non-expert.
【0012】[0012]
【課題を解決するための手段】この発明にかかる中空成
形機におけるブローピンの打込心出方法は、中空成形機
の打込装置を下降させ、金型上面にセットされた打込心
出装置にブローピンを挿入し、ブローピンに直交方向で
相対向する少なくとも四方からブローピンに向け流体を
吹き付けて各々の背圧又は流量を測定し、これらの値が
一定となるようにブローピンの位置を手動にて調節する
ことを特徴とする。According to the present invention, a method for centering a blow pin in a blow molding machine according to the present invention includes lowering a driving device of the blow molding machine, and setting a centering device set on an upper surface of a mold. Insert the blow pin, spray fluid toward the blow pin from at least four sides facing each other in the orthogonal direction to the blow pin, measure each back pressure or flow rate, and manually adjust the position of the blow pin so that these values become constant It is characterized by doing.
【0013】そしてこの発明にかかる中空成形機におけ
るブローピンの打込心出装置は、中空成形機における打
込装置のブローピンに直径方向で相対向してブローピン
の周囲を回動自在な吹出口を有し、その吹出口に連通す
る管路を有して流体供給源と接続されるとともに、その
背圧又は流量を確認する手段を有して、中空成形機にお
ける金型上面に着脱可能なることを特徴とする。The blow pin driving centering device in the blow molding machine according to the present invention has a blow port that is rotatable around the blow pin so as to be diametrically opposed to the blow pin of the driving device in the blow molding machine. It has a conduit communicating with the outlet and is connected to a fluid supply source, and has means for confirming the back pressure or flow rate thereof, so that it can be attached to and detached from the upper surface of the mold in the hollow molding machine. Features.
【0014】[0014]
【作用】ブローピンを金型のカウンタープレートに挿入
した後、吹出口から流体を噴き出させ、ブローピンの周
囲で吹出口を適宜旋回させてその部位における背圧又は
流量を測定し、各測定部位の背圧又は流量が一定となる
ように打込装置を前後左右に移動調節すると、ブローピ
ンはカウンタープレートの中心に位置することとなり、
したがって、心出し作業が簡便・迅速かつ容易に終了
し、成形品の口部の形状に変形が生じない成形生産がで
きる。After inserting the blow pin into the counter plate of the mold, a fluid is blown out from the blow port, and the blow port is swirled around the blow pin as appropriate to measure the back pressure or the flow rate at that location, and to measure the back pressure or flow rate at each measurement location. When the driving device is moved back and forth and left and right so that the back pressure or flow rate is constant, the blow pin will be located at the center of the counter plate,
Therefore, the centering operation can be completed simply, quickly and easily, and the molding can be produced without deformation of the shape of the mouth of the molded product.
【0015】[0015]
【実施例】以下この発明の実施例を説明する。図1,2
に示すように、中空成形機における打込装置のブローピ
ン1を挿入するカウンタープレート2を上面に取り付け
た金型3が型締装置に挟持されて固定している。ブロー
ピン1にはカウンタープレート2のテーパー面4を有す
る中心孔5内に挿入される。ブローピン1にはテーパー
面4に衝接する段部として形成されたカッティングスリ
ーブ6が設けられている。Embodiments of the present invention will be described below. Figures 1 and 2
As shown in (1), a mold 3 having a counter plate 2 for inserting a blow pin 1 of a driving device in a blow molding machine mounted on an upper surface is sandwiched and fixed by a mold clamping device. The blow pin 1 is inserted into a center hole 5 having a tapered surface 4 of a counter plate 2. The blow pin 1 is provided with a cutting sleeve 6 formed as a step that abuts the tapered surface 4.
【0016】金型3の上面には、カウンタープレート2
の中心孔5を中心とする所定半径の円周上に、所定間隔
で放射状に配置された穴7が穿設されている。この穴7
にピン8にて金型3との位置決めがなされ、上面に打込
心出装置9が着脱可能に装着されている。すなわち、ね
じ等を使用せず簡単に着脱できるようになっている。A counter plate 2 is provided on the upper surface of the mold 3.
Holes 7 are radially arranged at predetermined intervals on a circumference having a predetermined radius centered on the center hole 5. This hole 7
The pin 8 is positioned with respect to the mold 3, and a driving centering device 9 is detachably mounted on the upper surface. That is, it can be easily attached and detached without using screws or the like.
【0017】打込心出装置9はカウンタープレート2の
周縁部を包囲する方形のフランジ部10を有する外筒体
11と、外筒体11の内部に挿入されて軸中心で回動自
在な内筒体12と、内筒体12のフランジ部13にねじ
14で固定されてブローピン1を挿入する孔15を有す
る環状板16と、環状板16の断面内に半径方向へ穿設
された吹出口17と、吹出口17に連通する流路18
と、流路18にエア等の流体を供給する周溝19,20
と、周溝20に開口する接続口21とからなる。The driving centering device 9 includes an outer cylinder 11 having a rectangular flange 10 surrounding the peripheral portion of the counter plate 2, and an inner cylinder inserted into the outer cylinder 11 and rotatable about an axis. A cylindrical body 12, an annular plate 16 fixed to the flange portion 13 of the inner cylindrical body 12 with screws 14 and having a hole 15 into which the blow pin 1 is inserted, and an air outlet radially drilled in a cross section of the annular plate 16 17 and a flow path 18 communicating with the outlet 17
And circumferential grooves 19 and 20 for supplying a fluid such as air to the flow path 18.
And a connection port 21 opened in the circumferential groove 20.
【0018】周溝19は内筒体12の外周面に、周溝2
0は外筒体11の内周面にそれぞれ互いに合致するよう
に形成されている。そして、合致した周溝19,20の
シールのために、周溝19,20の上下部の外筒体11
と内筒体12の隙間にOリング22がそれぞれ配置され
ている。内筒体12はその下部外周面に、外筒体11の
内周面下部に半径方向へ突設したストップリング23を
係合する周溝24が形成され、かつ、外筒体11の上下
部にワッシャ25を介在させ、さらに、ワッシャ25と
ストップリング23を押え部材26にて外筒体11に固
定してある。The circumferential groove 19 is formed on the outer peripheral surface of the inner cylindrical body 12.
Numerals 0 are formed so as to coincide with the inner peripheral surface of the outer cylinder 11 respectively. Then, in order to seal the corresponding circumferential grooves 19 and 20, the outer cylindrical body 11 at the upper and lower portions of the circumferential grooves 19 and 20 is formed.
O-rings 22 are arranged in gaps between the inner ring 12 and the inner cylinder 12, respectively. A circumferential groove 24 is formed on a lower outer peripheral surface of the inner cylindrical body 12 at a lower portion of the inner circumferential surface of the outer cylindrical body 11 so as to engage a stop ring 23 projecting in a radial direction. The washer 25 and the stop ring 23 are fixed to the outer cylinder 11 with a holding member 26.
【0019】そして、内筒体12を回動して位置決めを
するために、フランジ部13にプランジャ27が取り付
けられている。プランジャ27は外筒体11の上面にボ
ール28をスプリング29で軽く押し付けて構成され、
環状板16が回動したとき外筒体11の上面に刻設した
浅い円穴に落ち込んでその位置を確認できるようにした
ものである。A plunger 27 is attached to the flange portion 13 in order to rotate and position the inner cylinder 12. The plunger 27 is configured by lightly pressing a ball 28 against the upper surface of the outer cylinder 11 with a spring 29.
When the annular plate 16 rotates, it falls into a shallow circular hole cut out on the upper surface of the outer cylinder 11 so that its position can be confirmed.
【0020】図3に示すように、前記接続口21には計
測器筺体30から延長するホース31が接続され、計測
器筺体30はホース31と接続された流体切換弁32
と、流体切換弁32からの供給圧力又は流量を検出する
ための圧力計等のセンサー33と、計測した数値を表示
するデジタル式の表示器34及びアンプ35が内装され
ている。流体切換弁32と表示器34は商用電源接続部
36から供給する電気にて駆動される。なお、表示器3
4は、図1に示すように、プレッシャーゲージ等のアナ
ログ式の表示器37に代えてもよい。As shown in FIG. 3, a hose 31 extending from the measuring instrument housing 30 is connected to the connection port 21, and the measuring instrument housing 30 is connected to the fluid switching valve 32 connected to the hose 31.
And a sensor 33 such as a pressure gauge for detecting a supply pressure or a flow rate from the fluid switching valve 32, a digital display 34 for displaying the measured numerical value, and an amplifier 35. The fluid switching valve 32 and the display 34 are driven by electricity supplied from a commercial power supply connection 36. The display 3
4 may be replaced with an analog display 37 such as a pressure gauge as shown in FIG.
【0021】次にブローピン1の打込心出方法について
説明すると、図1,2のように、打込心出装置9を金型
3の上面にピン8で位置決めした後、流体切換弁32を
駆動するとホース31から接続口21に流体が供給さ
れ、流体は周溝19,20及び流路18を経て吹出口1
7からブローピン1に向けて噴出する。Next, a method of centering the blow pin 1 will be described. As shown in FIGS. 1 and 2, after positioning the centering device 9 on the upper surface of the mold 3 with the pin 8, the fluid switching valve 32 is moved. When driven, fluid is supplied from the hose 31 to the connection port 21, and the fluid passes through the circumferential grooves 19 and 20 and the flow path 18 and
7 blows out toward the blow pin 1.
【0022】そこで、このときの流体供給圧力又は流量
を表示器34又は37で読み取り、記憶又はメモしてお
き、ついで内筒体12を所定の角度(90度)回動させ
る。そして、その回動させた部位における流体供給圧力
又は流量を表示器34,37で読み取り、記憶又はメモ
しておいて、更に内筒体12を所定の角度で回動させ、
前記同様にして流体供給圧力又は流量を読み取る。この
ようにして、ブローピンの少なくとも四方向からの流体
供給圧力又は流量を確認又は測定する。Therefore, the fluid supply pressure or flow rate at this time is read by the display 34 or 37, stored or recorded, and then the inner cylinder 12 is rotated by a predetermined angle (90 degrees). Then, the fluid supply pressure or flow rate at the rotated portion is read by the indicators 34 and 37, stored or recorded, and the inner cylinder 12 is further rotated at a predetermined angle.
The fluid supply pressure or flow rate is read in the same manner as described above. In this way, the fluid supply pressure or flow rate of the blow pin from at least four directions is confirmed or measured.
【0023】次に、確認又は測定した圧力又は流量の値
を比較し、それらの値が互いに等しくなるように、ブロ
ーピン1を前後左右又はそのいずれかに移動させて調節
する。この調節は、前記従来において行った手法と同じ
に、打込装置を前後左右に移動させて行えばよい。Next, the confirmed or measured values of the pressure or flow rate are compared, and the blow pin 1 is adjusted by moving the blow pin 1 forward, backward, left, right or any one of them so that the values become equal to each other. This adjustment may be made by moving the driving device back and forth and left and right in the same manner as the above-mentioned conventional method.
【0024】かくして、ブローピン1がカウンタープレ
ート2の中心孔5の中心に位置することにより、成形品
の口部の形状に変形が生じたり、口部の外周面に形成さ
れるべきネジ山等の崩れが生じないのである。Thus, since the blow pin 1 is located at the center of the center hole 5 of the counter plate 2, the shape of the mouth of the molded product is deformed, and a screw thread or the like to be formed on the outer peripheral surface of the mouth is formed. There is no collapse.
【0025】なお、流体供給圧力と吹出口17の径
(φ)により測定精度に変化がある。図4に示すよう
に、流体切換弁32とセンサー33との間に圧力調整弁
38及び切換弁39を介在させ、圧力(1〜4Kg)の
調整ができるようにし、エア供給の圧力を切り替えるこ
とにより測定精度の変化を実験した。The measurement accuracy varies depending on the fluid supply pressure and the diameter (φ) of the outlet 17. As shown in FIG. 4, a pressure adjusting valve 38 and a switching valve 39 are interposed between the fluid switching valve 32 and the sensor 33 so that the pressure (1 to 4 kg) can be adjusted and the pressure of the air supply is switched. The experiment of the change of the measurement accuracy was carried out.
【0026】次表1)は吹出口17の径がφ18.0の
場合、次表2)は径がφ18.4の場合及び次表3)は
径がφ17.5の場合における、それぞれエア供給圧力
を変化(1〜4Kg)させて、図2におけるA,B,
C,Dの四方向から測定した例を示す。これらの表から
判断されるように、φ17.5の場合はエア供給圧力1
〜2Kgでの測定値にバラツキが多くなるが、3Kg以
上だと安定する。φ18.0以上の場合は全て比較的安
定した測定ができる。Table 1) shows the air supply when the diameter of the outlet 17 is φ18.0, Table 2) shows the air supply when the diameter is φ18.4, and Table 3) shows the air supply when the diameter is φ17.5. By changing the pressure (1 to 4 kg), A, B,
The example which measured from four directions of C and D is shown. As can be determined from these tables, in the case of φ17.5, the air supply pressure 1
Variations in the measured values at 22 Kg increase, but are stable at 3 Kg or more. In the case of φ18.0 or more, all stable measurements can be made.
【0027】[0027]
【表1】 [Table 1]
【0028】[0028]
【表2】 [Table 2]
【0029】[0029]
【表3】 [Table 3]
【0030】[0030]
【発明の効果】以上説明したこの発明によれば、ブロー
ピン周囲の少なくとも四方において流体の背圧又は流量
を測定し、それらの差がなくなるようにブローピンを前
後左右へ移動調節してカウンタープレートの中心とブロ
ーピンの軸心とを合わせるので、従来のような熟練者に
よる心出作業を省略でき、数値的に精確な心出作業が非
熟練者でもできるから、中空成形機の運転開始に要する
準備作業が簡略化でき、不良成形製品が発生するのを防
止できる。According to the present invention described above, the back pressure or the flow rate of the fluid is measured at least in four directions around the blow pin, and the blow pin is moved forward, backward, left and right so as to eliminate the difference therebetween, and the center of the counter plate is adjusted. The centering of the blow pin and the shaft center of the blow pin can be omitted, so that the centering work by a skilled person can be omitted, and the numerically accurate centering work can be performed by an unskilled person. Can be simplified, and the occurrence of defective molded products can be prevented.
【図1】本発明の実施例における要部断面正面図FIG. 1 is a sectional front view of a main part according to an embodiment of the present invention.
【図2】図1の平面図FIG. 2 is a plan view of FIG. 1;
【図3】計測器の構成概要図FIG. 3 is a schematic configuration diagram of a measuring instrument.
【図4】計測器の他の例を示す配管系統図FIG. 4 is a piping diagram showing another example of the measuring instrument.
【図5】打込装置の正面図FIG. 5 is a front view of the driving device.
【図6】打込装置の側面図FIG. 6 is a side view of the driving device.
【図7】打込装置の一部断面正面図FIG. 7 is a partially sectional front view of the driving device.
【符号の説明】 1…ブローピン 2…カウンタープレート 3…金型 5…中心孔 6…ねじ 9…打込心出装置 11…外筒体 12…内筒体 16…環状板 17…吹出口 18…流路 19,20…周溝 21…接続口 22…Oリング 27…プランジャ 28…ボール 29…スプリング 30…計測器筺体 31…ホース 32…流体切換弁 33…センサー 34…表示器[Explanation of Signs] 1 ... Blow pin 2 ... Counter plate 3 ... Mold 5 ... Center hole 6 ... Screw 9 ... Punch centering device 11 ... Outer cylinder 12 ... Inner cylinder 16 ... Circular plate 17 ... Outlet 18 ... Flow paths 19, 20 ... circumferential groove 21 ... connection port 22 ... O-ring 27 ... plunger 28 ... ball 29 ... spring 30 ... measuring instrument housing 31 ... hose 32 ... fluid switching valve 33 ... sensor 34 ... display
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) B29C 49/00 - 49/80 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. 7 , DB name) B29C 49/00-49/80
Claims (2)
上面にセットされた打込心出装置にブローピンを挿入
し、ブローピンに直交方向で相対向する少なくとも四方
からブローピンに向け流体を吹き付けて各々の背圧又は
流量を測定し、これらの値が一定となるようにブローピ
ンの位置を手動にて調節することを特徴とする中空成形
機におけるブローピンの打込心出方法。1. A driving device of a hollow molding machine is lowered, a blow pin is inserted into a driving centering device set on an upper surface of a mold, and fluid is directed toward the blow pin from at least four sides orthogonal to each other in a direction orthogonal to the blow pin. A method of centering a blow pin in a blow molding machine, wherein the back pressure or the flow rate is measured by spraying, and the position of the blow pin is manually adjusted so that these values become constant.
ンに直径方向で相対向してブローピンの周囲を回動自在
な吹出口を有し、その吹出口に連通する管路を有して流
体供給源と接続されるとともに、その背圧又は流量を確
認する手段を有して、中空成形機における金型上面に着
脱可能なることを特徴とする中空成形機におけるブロー
ピンの打込心出装置。2. A blower having a blow-out port which is rotatable around the blow-pin in a diametric direction and opposes a blow-pin of a driving device in a blow molding machine, and has a pipeline communicating with the blow-out port. A blow pin driving centering device for a blow molding machine, characterized in that it is connected to a source and has means for confirming the back pressure or flow rate thereof, and is detachable from a die upper surface of the blow molding machine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6682994A JP3352806B2 (en) | 1994-04-05 | 1994-04-05 | Method and apparatus for centering blow pin in blow molding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6682994A JP3352806B2 (en) | 1994-04-05 | 1994-04-05 | Method and apparatus for centering blow pin in blow molding machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07276487A JPH07276487A (en) | 1995-10-24 |
JP3352806B2 true JP3352806B2 (en) | 2002-12-03 |
Family
ID=13327123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6682994A Expired - Lifetime JP3352806B2 (en) | 1994-04-05 | 1994-04-05 | Method and apparatus for centering blow pin in blow molding machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3352806B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4718280B2 (en) * | 2005-09-13 | 2011-07-06 | 株式会社タハラ | Method for aligning axial center of driving nozzle in hollow molding apparatus |
-
1994
- 1994-04-05 JP JP6682994A patent/JP3352806B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH07276487A (en) | 1995-10-24 |
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