JPH04135724A - Chute device for product of injection molding machine - Google Patents
Chute device for product of injection molding machineInfo
- Publication number
- JPH04135724A JPH04135724A JP25526590A JP25526590A JPH04135724A JP H04135724 A JPH04135724 A JP H04135724A JP 25526590 A JP25526590 A JP 25526590A JP 25526590 A JP25526590 A JP 25526590A JP H04135724 A JPH04135724 A JP H04135724A
- Authority
- JP
- Japan
- Prior art keywords
- product
- chute
- defective
- injection molding
- molding machine
- 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.)
- Granted
Links
- 238000001746 injection moulding Methods 0.000 title claims description 28
- 238000011156 evaluation Methods 0.000 claims description 3
- 239000000047 product Substances 0.000 abstract description 140
- 230000002950 deficient Effects 0.000 abstract description 38
- 239000013067 intermediate product Substances 0.000 abstract description 10
- 238000000465 moulding Methods 0.000 description 32
- 238000005259 measurement Methods 0.000 description 17
- 238000002347 injection Methods 0.000 description 16
- 239000007924 injection Substances 0.000 description 16
- 238000001514 detection method Methods 0.000 description 15
- 230000007246 mechanism Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 238000004886 process control Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 241000545744 Hirudinea Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/7626—Measuring, controlling or regulating the ejection or removal of moulded 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1769—Handling of moulded articles or runners, e.g. sorting, stacking, grinding of runners
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、製品（成形品）の品質を自動判別する品質判
別機能を具備した射出成形機における製品シュート装置
に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a product chute device in an injection molding machine that is equipped with a quality determination function that automatically determines the quality of a product (molded article).
［従来の技術］
射出成形機による成形作業を自動運転で行う際、成形さ
れた製品が不良品の山となったのでは全く意味がないた
め、製品の品質決定要因となる多数の成形運転条件はき
め細かく設定されている。そして、成形機全体の制御を
司るマイクロコンピュータ（以下マイコンと称す）は、
予め設定された成形運転条件値に基づき各種センサから
の計測データを参照して自動運転を実行し、成形品を連
続的に成形するようになっている。[Conventional technology] When molding work using an injection molding machine is performed automatically, it would be meaningless if the molded products turned out to be a pile of defective products, so a large number of molding operation conditions are required to determine the quality of the product. are set in detail. The microcomputer (hereinafter referred to as microcomputer) that controls the entire molding machine is
Based on preset molding operation condition values, automatic operation is executed with reference to measurement data from various sensors, and molded products are continuously molded.
また、上述した成形運転条件の設定値と共に、このそれ
ぞれの設定値に併せて上限値並びに下限値を設定し、自
動成形を行いながら各成形運転条件値が実際にどのよう
に変化したかを実測し、該実測値が上記した設定上・下
限値の範囲内にあれば良品、設定上限値または設定下限
値から外れた場合には不良品と判断し、不良判定がなさ
れた場合にはその際の成形品を、型開き・取り出し時に
正規の製品集積（載置）箇所以外の場所に持ってゆくよ
うにした、所謂自動検査機能付きの射出成形機も最近で
は普及し始めている。この自動検査機能付きの射出成形
機として、本願出願人が特願平１−１６９９９３号とし
て提案した技術においては、射出成形機全体の制御を司
るマイコンが、各成形運転条件値の計測データを所定シ
ョット数取り込んで、これを統計演算処理し、前記した
上・下限値を決定するようにしている。In addition to the above-mentioned molding operation condition setting values, we also set upper and lower limit values for each of these settings, and measured how each molding operation condition value actually changed while performing automatic molding. However, if the measured value is within the upper and lower limit values set above, it is determined to be a good product, and if it deviates from the upper or lower limit values, it is determined to be defective. Injection molding machines with a so-called automatic inspection function, which move molded products to a location other than the official product accumulation (mounting) location when opening and removing the mold, have recently become popular. In the technology proposed by the applicant in Japanese Patent Application No. 1-169993 as an injection molding machine with an automatic inspection function, a microcomputer that controls the entire injection molding machine inputs measurement data of each molding operation condition value to a predetermined value. The number of shots is taken in and subjected to statistical calculation processing to determine the above-mentioned upper and lower limit values.
第４図及び第５図は、斯る従来の自動検査機能付きの射
出成形機における製品振り分はメカニズムを示す説明図
であり、第４図は要部断面図、第５図は要部平面図であ
る。図において、１００は、成形機の製品取り出し箇所
（金型の型開き空間）の下部に設置された製品受はホッ
パーで、該製品受はホッパー１００はその底面に向かっ
てテーパーが形成されており、底面の中央部には製品落
下用の開口１００ａが穿設されている。１０１は、上記
製品受はホッパー１００の下部に設置された振り分け・
案内部材で、図示せぬ適宜駆動源によって支軸１０２を
回動支点としてシーソー運動可能とされている。そして
、良品判別がなされた際には、例えば、振り分け・案内
部材１０１が第４図の実線図示位置におかれて、製品（
成形品）１０３を食品受は部１０４に案内・落下させ、
また、反対に不良品判別がなされた際には、振り分け・
案内部材１０１が第４図の２点鎖線図示位置におかれて
、製品１０３を不良品溜め１０５に案内・落下させるよ
うになっていた。4 and 5 are explanatory diagrams showing the mechanism for distributing products in a conventional injection molding machine with an automatic inspection function. FIG. 4 is a sectional view of the main part, and FIG. It is a diagram. In the figure, reference numeral 100 indicates a hopper, which is a product receiver installed at the bottom of the product take-out location of the molding machine (the mold opening space of the mold), and the product receiver 100 is tapered toward the bottom surface of the product receiver. An opening 100a for dropping the product is bored in the center of the bottom surface. 101 is a sorting/receiving device installed at the bottom of the hopper 100.
The guide member is capable of seesaw movement using a support shaft 102 as a rotational fulcrum by an appropriate drive source (not shown). When a non-defective product is determined, for example, the sorting/guiding member 101 is placed at the position shown by the solid line in FIG.
The molded product) 103 is guided and dropped into the food receiving section 104,
On the other hand, when a defective product is determined, the distribution and
The guide member 101 was placed at the position shown by the two-dot chain line in FIG.
［発明が解決しようとする課題］
上記したように、従来の製品振り分はメカニズムにおい
ては、シーソー運動する振り分け・案内部材１０１によ
って製品を振り分けしている。このため、製品を２方向
にしか排出することができず、製品選別・搬送レイアウ
トに制約を受け、特に多数台の射出成形機を並設した場
合には製品選別・搬送レイアウト上の自由度を損なうと
いう問題があった。また、前記製品受はホッパー１００
の開口１００ａと振り分け・案内部材１０１との間に、
第４，５図に示すように隙間１０６が存在するため、こ
の隙間１０６に製品１０３がひっかかる虞があり、第４
図の２点鎖線位置に振り分け・案内部材１０１がある時
に万一不良品がひっがかり、この状態から振り分け・案
内部材１０１が反転した際に不良品が落下すると、良品
中に不良品が混入するという間層もあった。さらにはま
た、振り分け・案内部材１０１が薄板で形成されている
ため、該振り分け・案内部材１０１の反転動作時に大き
な音がするという指摘もあった。[Problems to be Solved by the Invention] As described above, in the conventional product sorting mechanism, the products are sorted by the sorting/guiding member 101 that moves in a seesaw motion. For this reason, products can only be discharged in two directions, which limits product sorting and transportation layouts. Especially when multiple injection molding machines are installed side by side, there is limited freedom in product sorting and transportation layouts. There was a problem with damage. In addition, the product receiver is a hopper 100
between the opening 100a and the sorting/guiding member 101,
As shown in FIGS. 4 and 5, since there is a gap 106, there is a risk that the product 103 may get caught in this gap 106.
If a defective product is caught when the sorting/guiding member 101 is at the position indicated by the two-dot chain line in the figure, and if the defective product falls when the sorting/guiding member 101 is reversed from this state, the defective product will be mixed in with the non-defective products. There was also a layer between them. Furthermore, it has been pointed out that since the sorting/guiding member 101 is formed of a thin plate, it makes a loud noise when the sorting/guiding member 101 is reversed.
さらに、従来技術においては、製品の品質判別を良、不
良の２通りだけで行っていたため、次に述べるような間
層もあった。すなわち、射出成形の技術分野では、各成
形運転条件の相関関係の詳細や樹脂挙動の詳細メカニズ
ムなど未解明の事柄が多々あり、これらを正確に把握す
るための研究が種々進められているが、自動品質判別機
能付きの射出成形機において設定される前記した上・下
限値は、現状では、不良品を確実に排除するために許容
範囲が狭く設定される傾向にあり、このため、不良品と
して排除される成形品中に実用上は良品として許容され
る成形品が混入しているという指摘があった。しかも、
型開きして成形品を金型外に取り出す前に良否判定を行
う都合上、良否判定のためのモニタ項目は総べて射出成
形機の運転条件と対応するものであり、多分に「見做し
」の良否判定ぎみであり、この点からも許容範囲が狭く
設定される傾向にあった。よって、製品歩留まりを向上
させるために、不良品と判定され蛭製品から良品を選別
する作業を行っているが、この手作業による判別作業に
多大の時間がかかるという問題があった。Furthermore, in the prior art, the quality of the product was determined only in two ways: good and bad, so there were gaps as described below. In other words, in the technical field of injection molding, there are many unresolved issues such as the details of the correlation between various molding operating conditions and the detailed mechanisms of resin behavior, and various studies are being carried out to accurately understand these issues. Currently, the above-mentioned upper and lower limit values set in injection molding machines with an automatic quality discrimination function tend to have narrow tolerance ranges in order to reliably exclude defective products. It was pointed out that the rejected molded products included molded products that were actually acceptable as good products. Moreover,
Since the pass/fail judgment is performed before the mold is opened and the molded product is taken out of the mold, all of the monitor items for the pass/fail judgment correspond to the operating conditions of the injection molding machine, and many of them are It is very difficult to judge the quality of the product, and from this point of view as well, the tolerance range has tended to be set narrowly. Therefore, in order to improve the product yield, a work is carried out to sort out good products from leech products that have been determined to be defective, but there is a problem in that this manual discrimination work takes a lot of time.
本発明は上記の点に鑑み成されたもので、その目的とす
るところは、製品の振り分は箇所を複数の任意箇所に選
択可能として、製品選別・搬送レイアウト上の自由度を
向上させ得、しかも、自動品質判別で良品ではないと判
定された製品をランり分けして振り分は可能な射出成形
機の製品シュート装置を提供することにある。The present invention has been made in view of the above points, and its purpose is to improve the degree of freedom in product sorting and transportation layout by making it possible to select a plurality of arbitrary locations for product distribution. Moreover, it is an object of the present invention to provide a product chute device for an injection molding machine, which is capable of sorting and sorting out products determined to be non-defective through automatic quality discrimination.
［課題を解決するための手段］
本発明は上記した目的を達成するため、製品の品質判別
機能を具備し、ｌショット毎の品質判別を、製品が金型
から取り出される時点以前に行う射出成形機の製品シュ
ート装置において、例えば、製品の品質判別を、良判定
と、良／不良の中間判定と、不良判定との３段階に分け
て評価するようになすと共に、製品の取り出し箇所に設
置された製品受は部（製品受はホッパー）に連なったシ
ュート（落し管状部）を、該シュートの上部を回転中心
として回転駆動可能であるように設け、製品の品質判別
結果に応じて、シュートを予め定められた３つの回転停
止位置の１つに選択的に位置付けるように、構成される
。[Means for Solving the Problems] In order to achieve the above-mentioned objects, the present invention provides an injection molding system that is equipped with a product quality determination function and performs quality determination for each shot before the product is taken out of the mold. For example, in the product chute device of the machine, the quality of the product is evaluated in three stages: good judgment, intermediate judgment of good/bad, and bad judgment. A chute (drop tube-shaped part) connected to the product receiving part (the product receiving part is a hopper) is provided so that it can be rotated around the upper part of the chute, and the chute is rotated according to the result of product quality determination. The rotation stopper is configured to be selectively positioned at one of three predetermined rotation stop positions.
［作 用コ
射出成形機に内蔵されたマイコンは、１ショット（各サ
イクル）毎に射出条件等々の運転条件に関する各モニタ
項目の実測値を取り込む。そして、マイコンは、取り込
んだ多数のモニタ項目の実測値と予め設定されている各
モニタ項目の上・下限値とを対比して製品の品質判定を
行い、例えば、３段階（良品、良品と不良品の中間品、
不良品）の評価分けを、金型外に製品を取り出す以前に
行う。いま、総べてのモニタ項目の実測値が、予め定め
られた上・下限値範囲内にあれば、良品と判定され、マ
イコンはシュートの回転位置を制御して該シュートの出
口を食品受は部に位置付ける。[Operation] The microcomputer built into the injection molding machine takes in the actual measured values of each monitor item regarding operating conditions such as injection conditions for each shot (each cycle). The microcomputer then compares the actual measured values of the many monitor items that have been imported with the preset upper and lower limit values for each monitor item to determine the quality of the product. Intermediate quality products,
Evaluation and classification of defective products is performed before taking the products out of the mold. Now, if the actual measured values of all monitor items are within the predetermined upper and lower limit ranges, the product is judged to be good, and the microcomputer controls the rotational position of the chute so that the outlet of the chute does not receive the food. position in the department.
また、例えば、モニタ項目中の重要な項目の少なくとも
１つが予め定められた上・下限値範囲内を外れた場合や
、モニタ項目中の比較的重み付けの軽い（比較的軽視で
きる）所定数以上の項目が予め定められた上・下限値範
囲内を外れた場合には、不良品と判定され、マイコンは
シュートの回転位置を制御して該シュートの出口を不良
品受は部に位置付は乙。さらにまた、モニタ項目中の比
較的軽い重み付けの項目（比較的軽視できる項＠）の１
つもしくは所定数以下の項目のみが、予め定められた上
・下限値範囲内を外れた場合には、良／不良の中間品と
判定され、マイコンはシュートの回転位置を制御して該
シュートの出口を中間品受は部に位置付ける。Also, for example, if at least one of the important items among the monitor items falls outside the predetermined upper/lower limit range, or if a predetermined number or more of the monitor items that are relatively lightly weighted (can be taken relatively lightly) If an item falls outside of the predetermined upper and lower limit ranges, it is determined to be a defective product, and the microcomputer controls the rotational position of the chute and places the exit of the chute in the defective product receiving section. . Furthermore, one of the relatively lightly weighted items among the monitor items (items that can be taken relatively lightly)
If only one or a predetermined number of items are outside the predetermined upper and lower limit ranges, the product is determined to be a good/defective intermediate product, and the microcomputer controls the rotational position of the chute. The exit is located in the intermediate product receiving section.
斯様にすることによって、自動品質判別で、良品ではな
いと判別された製品をランク分けして振り分は可能とな
り、中間品から実用上許容される良品をピックアップす
る作業が容易となり、且つこのための作業時間も短縮で
きる。また、シュートを回転自在として、判別結果に基
づきシュートの回転位置（シュートの出口）を任意箇所
に位置付け・選択できるので、製品選別・搬送レイアウ
ト上の自由度が向上する。しかも、シュートを用いてい
るので、落下時に製品がひっかかることがなく、判定結
果の異なる製品同志が混在する虞は一切ない。By doing this, it becomes possible to rank and sort products that are determined to be non-defective through automatic quality discrimination, and it becomes easier to pick up practically acceptable good products from intermediate products. The work time can also be reduced. Furthermore, since the chute is rotatable and the rotational position of the chute (chute exit) can be positioned and selected at any location based on the determination result, the degree of freedom in product sorting and transport layout is improved. Moreover, since a chute is used, the product will not get caught when falling, and there is no possibility that products with different judgment results will mix together.
［実施例］
以下、本発明をインラインスクリュータイプの射出成形
機に適用した第１図〜第３図に示した１実施例によって
説明する。なお本実施例では、油圧駆動方式の射出成形
機を例にとって説明するが、サーボ電動機駆動方式の射
出成形機においても、本発明は囮様に実施することがで
きる。[Example] Hereinafter, the present invention will be explained using an example shown in Figs. 1 to 3 in which the present invention is applied to an in-line screw type injection molding machine. In this embodiment, a hydraulically driven injection molding machine will be described as an example, but the present invention can also be implemented in a servo motor driven injection molding machine.
第１図は射出成形機の要部の概略構成を示す説明図であ
る。同図における左上部分は型開閉メカニズム系を示し
ており、該図示部分において、１はベース、２は該ベー
ス１上に固設された固定ダイプレート、３はベースｌ上
に延設されたスライドベースｌａ上に設置された支持盤
、４は固定ダイプレート２と支持盤３との間に架設され
た複数本のタイバーである。上記支持盤３には、型開閉
駆動源たる型締シリンダ（油圧シリンダ）５が固設され
ており、該型締シリンダ５のピストンロッド５ａの先端
部には、公知のトグルリンク機構６を介して前記タイバ
ー４に挿通された可動ダイプレート７が連結されている
。そして、ピストンロッド５ａを前後進させることによ
り、可動ダイプレート７を固定ダイプレート２に対し、
接近または後退させるようになっている。FIG. 1 is an explanatory diagram showing a schematic configuration of main parts of an injection molding machine. The upper left part of the figure shows the mold opening/closing mechanism system, in which 1 is the base, 2 is the fixed die plate fixed on the base 1, and 3 is the slide extended on the base l. The support plate 4 installed on the base la is a plurality of tie bars installed between the fixed die plate 2 and the support plate 3. A mold clamping cylinder (hydraulic cylinder) 5 as a mold opening/closing drive source is fixedly installed on the support plate 3, and a known toggle link mechanism 6 is connected to the tip of a piston rod 5a of the mold clamping cylinder 5. A movable die plate 7 inserted through the tie bar 4 is connected thereto. Then, by moving the piston rod 5a back and forth, the movable die plate 7 is moved relative to the fixed die plate 2.
It is designed to approach or retreat.
また、前記固定ダイプレート２と前記可動ダイプレート
７の相対向する面には、・固定側金型８と可動側金型９
とが取付けられている。そして、成形サイクル中の型閉
じ行程時には、前記ピストンロッド５ａの前進で前記ト
グルリンク機構６を伸長させて可動ダイプレート７を前
進させ、両金型８．９を密着させ、続いて公知のように
トグルリンク機構６を突っ張らせて所定の型締力を与え
るようになっている。一方、成形サイクル中の型開き行
程時には、ピストンロッド５ａの後退でトグルリンク機
構６を折り縮めて可動ダイプレート７を後退させ、両金
型８，９を離間させ、公知の図示せぬエジェクト機構等
によって製品（成形品）を取り外すようになっている。Moreover, on the opposing surfaces of the fixed die plate 2 and the movable die plate 7, a fixed die 8 and a movable die 9 are provided.
is installed. During the mold closing process during the molding cycle, the toggle link mechanism 6 is extended by the advance of the piston rod 5a, the movable die plate 7 is advanced, and both molds 8.9 are brought into close contact with each other. The toggle link mechanism 6 is tensioned to apply a predetermined mold clamping force. On the other hand, during the mold opening stroke during the molding cycle, the toggle link mechanism 6 is folded by the retraction of the piston rod 5a, the movable die plate 7 is retracted, the two molds 8 and 9 are separated, and a known eject mechanism (not shown) is activated. The product (molded product) can be removed by
そして、金型から取り外された製品は、この製品取り出
し箇所（金型の型開き空間）の下部に設置された製品シ
ュート装置１０の受は入れ部に投入されるようになって
いる。なお、この製品シュート装置１０は、後述するマ
イコン３０によって制御される。The product removed from the mold is thrown into a receiving section of a product chute device 10 installed at the bottom of this product take-out location (mold opening space of the mold). Note that this product chute device 10 is controlled by a microcomputer 30, which will be described later.
第２図は、上記製品シュート装置１０を示す説明図で、
該製品シュート装置１０は主として、製品受はホッパー
５０、シュート（落し管状部）５１、モータ５２等から
構成されている。上記製品受はホッパー５０は、前記ベ
ース１の開口部位にその上部が位置するように固定的に
適宜手段で保持されており、その下部にはベアリング５
３を介してシュート５１の上部が回転可能であるように
取り付けられている。５４は、シュート５１の上部外周
に一体的に固設されたギヤで、該ギヤ５４にモータ５２
の出力ギヤ５２ａが噛み合っている。FIG. 2 is an explanatory diagram showing the product chute device 10.
The product chute device 10 mainly includes a product receiver, a hopper 50, a chute (drop tube) 51, a motor 52, and the like. The product receiver hopper 50 is fixedly held by appropriate means so that its upper part is located at the opening of the base 1, and a bearing 5 is provided at its lower part.
3, the upper part of the chute 51 is rotatably attached. 54 is a gear that is integrally fixed to the upper outer periphery of the chute 51, and the motor 52 is connected to the gear 54.
The output gears 52a of the two are in mesh with each other.
従って、モータ５２の回転でシュート５１はその上部を
回転中心として回動し、金型から落下してくる製品５５
をその回動位置に応じて、所定箇所に案内・落下させる
ようになっている。なお、第２図において、５６は案内
板部材で、金型から落下してくる製品５５を確実に製品
受はホッパー５０に案内するようになっている。Therefore, as the motor 52 rotates, the chute 51 rotates around its upper part, and the product 55 falls from the mold.
It is designed to guide and drop the robot to a predetermined location depending on its rotational position. In FIG. 2, reference numeral 56 denotes a guide plate member that reliably guides the product 55 falling from the mold to the product receiver hopper 50.
本実施例においては図示したように、製品受はホッパー
５０の底部開口と連通したシュート５１の内周面には、
製品５５がひっかかるような突出部や凹みは何等形成さ
れておらず、よって、製品５５はシュート５１の傾斜に
従って自重でスムーズに落下する。また、モータ５２駆
動によるシュート５１の回転はギヤ伝達により低音で円
滑に行われ、騒音によって作業環境を悪化させることも
ない。In this embodiment, as illustrated, the product receiver is located on the inner peripheral surface of the chute 51 that communicates with the bottom opening of the hopper 50.
There are no protrusions or recesses in which the product 55 may get caught, and therefore the product 55 falls smoothly under its own weight along the inclination of the chute 51. Further, the rotation of the chute 51 driven by the motor 52 is carried out smoothly with low noise due to gear transmission, and the working environment is not deteriorated by noise.
なお、上記したシュート５１の回転停止位置は、任意角
度で任意の数だけ設定可能であるが、本実施例において
は、シュート５１が３つの回転停止位置をとるように設
定されており、後述するマイコン３０の制御の下でシュ
ート５１は、第２図で実線で示した第１の回転停止位置
Ａ、該第１の回転停止位置と９０″′の間隔をおいた第
２の回転停止位置Ｂ（第２図で１点鎖線で図示）、並び
に該第１の回転停止位置Ａと１８０″′の間隔をおいた
第３の回転停止位置（第２図で２点鎖線で図示）のうち
の１つを択一的にとるようになっている。Note that the rotation stop positions of the chute 51 described above can be set at any angle and in any number, but in this embodiment, the chute 51 is set to take three rotation stop positions, which will be described later. Under the control of the microcomputer 30, the chute 51 moves to a first rotation stop position A shown by a solid line in FIG. (indicated by the dashed-dot line in FIG. 2), and a third rotation stop position (indicated by the dash-dotted line in FIG. 2) spaced 180'' from the first rotation stop position A. You can choose one option.
そして、１ショット毎に各モニタデータを総合判断して
良品判定がなされた場合は、例えば、シュート５１は第
１の回転停止位置Ａにおかれて、当該ショットの製品は
第３図に示すように食品受は部（実施例では良品搬送用
コンベア５７）に導がれる。また、１ショット分の各モ
ニタデータを総合判断して良／不良の中間品である旨の
判定がなされた場合は、シュート５１は第３の回転停止
位置Ｃにおかれて、当該ショットの製品は第３図に示す
ように中間品受は部（実施例では中間品溜め５８）に導
かれる。さらにまた、１ショット分の各モニタデータを
総合判断して不良品判定がなされた場合には、シュート
５１は第２の回転停止位置Ｂにおかれて、当該ショット
の製品は第３図に示すように不良品受は部（実施例では
不良品搬送用コンベア５９）に導かれる。If a non-defective product is determined by comprehensively judging each monitor data for each shot, for example, the chute 51 is placed at the first rotation stop position A, and the product of the shot is as shown in FIG. Then, the food receptacle is guided to a section (in the embodiment, a conveyor 57 for transporting non-defective products). Furthermore, if it is determined that the product is an intermediate product between good and bad based on a comprehensive judgment of each monitor data for one shot, the chute 51 is placed in the third rotation stop position C, and the product of the shot is As shown in FIG. 3, the intermediate product receiver is guided to a section (in the embodiment, the intermediate product reservoir 58). Furthermore, if a defective product is determined based on a comprehensive judgment of each monitor data for one shot, the chute 51 is placed in the second rotation stop position B, and the product of the shot is as shown in FIG. In this way, the defective product receiver is guided to a section (in the embodiment, a defective product conveyor 59).
上記した第３図は、複数台の射出成形機ＩＭＭが並設さ
れた場合の製品選別・搬送レイアウトの１例を示してお
り、品質判別結果に応じてランク分けした製品を、１台
の射出成形機ＩＭＭにおいて３方向に振り分けて排出す
ることが可能となって、ランク分けした製品の集荷が個
別に簡単・容易に行え、且つレイアウト上の自由度も高
まる。Figure 3 above shows an example of the product sorting/transport layout when multiple injection molding machines IMM are installed in parallel. It is now possible to sort and discharge the products in three directions in the molding machine IMM, making it easy and simple to collect the ranked products individually and increasing the degree of freedom in terms of layout.
さらに、第３図に示したように、各射出成形機ＩＭＭに
共通した不良品搬送用コンベア５９とすることにより、
効率の良い不良品の収集が可能となる。Furthermore, as shown in FIG. 3, by using a conveyor 59 for conveying defective products common to each injection molding machine IMM,
It becomes possible to efficiently collect defective products.
第１図における右上部分は射出メカニズム系を示してお
り、該図示部分において、１１は加熱シリンダ、１２は
該加熱シリンダ１１内に回転並びに前後進可能に配設さ
れたスクリュー、１３は加熱シリンダ１２の先端に取付
けられたノズル、１４は加熱シリンダ１１並びにノズル
１３の外周に巻装されたバンドヒータ、１５は樹脂材料
をスクリュー１２の後部に供給するためのホッパー １
６はスクリュー１２の回転駆動源たるモータ（本実施例
では例えば電磁モータを用いているが、油圧モータなど
にも代替可能である）、１７はスクリュー１２の前後進
を制御するための射出シリンダ（油圧シリンダ）である
。公知のように、ホッパー１５から供給された樹脂材料
は、スクリュー１２の回転により混線・可塑化されつつ
スクリュー１２の先端側に移送されながら溶融され、溶
融樹脂がスクリュー１２の先端側に貯えられるに従って
スクリュー１２が背圧を制御されつつ後退し、１ショッ
ト分の溶融樹脂がスクリュー１２の先端側に貯えられた
時点でスクリュー回転は停止される。そして、所定秒時
を経た後、射出開始タイミングに至ると、スクリュー１
２が前進駆動されて、型締めされた前記金型８，９間の
キャビティへ溶融樹脂が射出されるようになっている。The upper right part in FIG. 1 shows the injection mechanism system, and in the shown part, 11 is a heating cylinder, 12 is a screw disposed in the heating cylinder 11 so as to be rotatable and movable back and forth, and 13 is a heating cylinder 12. 14 is a band heater wrapped around the outer periphery of the heating cylinder 11 and the nozzle 13; 15 is a hopper for supplying resin material to the rear of the screw 12;
Reference numeral 6 indicates a motor (for example, an electromagnetic motor is used in this embodiment, but a hydraulic motor or the like may be substituted) as a rotational drive source for the screw 12, and 17 indicates an injection cylinder (for controlling the forward and backward movement of the screw 12). hydraulic cylinder). As is well known, the resin material supplied from the hopper 15 is mixed and plasticized by the rotation of the screw 12 and is melted while being transferred to the tip side of the screw 12. As the molten resin is stored at the tip side of the screw 12, the resin material is melted. The screw 12 is retracted while the back pressure is controlled, and when one shot of molten resin is stored on the tip side of the screw 12, the screw rotation is stopped. Then, after a predetermined time has elapsed, when the injection start timing is reached, the screw 1
2 is driven forward, and molten resin is injected into the cavity between the clamped molds 8 and 9.
２０は油圧測定ヘッド等よりなる射出圧力検出センサ、
２１はエンコーダ等よりなる射出ストローク検出センサ
、２２は回転エンコーダ等よりなるスクリュー回転検出
センサ、２３は加熱シリンダ１２の温度を検出する温度
検出センサ、２４はノズル１３の温度を検出する温度検
出センサ、２５はエンコーダ等よりなる型開閉ストロー
ク検出センサ、２６は油圧測定ヘッド等よりなる型締圧
力検出センサ、２７は前記製品シュート装置１０におけ
るシュート回転位置検出センサで、これら各センサ２０
〜２７の計測情報信号８１〜Ｓ８や、図示せぬ他の各セ
ンサからの計測情報信号が、−後記するマイコン３０に
必要に応じ適宜入力変換処理を施して送出される。20 is an injection pressure detection sensor consisting of a hydraulic pressure measuring head, etc.;
21 is an injection stroke detection sensor consisting of an encoder etc., 22 is a screw rotation detection sensor consisting of a rotation encoder etc., 23 is a temperature detection sensor that detects the temperature of the heating cylinder 12, 24 is a temperature detection sensor that detects the temperature of the nozzle 13, 25 is a mold opening/closing stroke detection sensor consisting of an encoder etc.; 26 is a mold clamping pressure detection sensor consisting of a hydraulic pressure measuring head etc; 27 is a chute rotation position detection sensor in the product chute device 10; each of these sensors 20
-27 measurement information signals 81 to S8 and measurement information signals from other sensors (not shown) are sent to a microcomputer 30 (to be described later) after being subjected to appropriate input conversion processing as necessary.
３０は、マシン全体の動作制御などを司るマイコンで、
型開閉動作、チャージ動作、射出動作などの成形行程全
体の制御や、製品（成形品）品質判定処理、並びに測定
データの統計演算等々の各種演算処理を実行する。該マ
イコン３０は実際には、各種Ｉ１０インターフェース、
主制御プログラム並びに各種固定データなどを格納した
ＲＯＭ、各種フラグや測定データ等を読み書きするＲＡ
Ｍ、全体の制御を司るＣＰＵ （セントラルプロセッサ
ーユニット）等を具備しており、予め作成された各種プ
ログラムに従って各種処理を実行するも、本実施例にお
いては説明の便宜上、成形条件設定記憶部３１、成形プ
ロセス制御部３２、演算処理部３３、実測値記憶部３４
、上・下限値設定記憶部３５、比較演算部３６等の機能
部を具備しているものとして、以下の説明を行う。30 is a microcomputer that controls the operation of the entire machine.
It controls the entire molding process such as mold opening/closing operations, charging operations, and injection operations, performs various calculation processes such as product (molded article) quality determination processing, and statistical calculations of measurement data. The microcomputer 30 actually has various I10 interfaces,
ROM that stores the main control program and various fixed data, RA that reads and writes various flags and measurement data, etc.
M is equipped with a CPU (Central Processor Unit) etc. that controls the entire system, and executes various processes according to various programs created in advance, but in this embodiment, for convenience of explanation, a molding condition setting storage section 31, Molding process control section 32, arithmetic processing section 33, actual measurement value storage section 34
, an upper/lower limit value setting storage section 35, a comparison calculation section 36, and other functional sections will be described below.
上記成形条件設定記憶部３１には、キー人力手段４０も
しくは他の適宜入力手段によって入力された各種成形条
件値が、必要に応じ演算処理されて書き替え可能な形で
記憶されている。この成形条件としては、例えば、チャ
ージ行程時のスクリュー位置とスクリュー回転数及び背
圧との関係、サックバック制御条件、射出開始点（位置
）から保圧切替点（位置）までの細分化された射出速度
条件、保圧切替時点から保圧終了時点までの細分化され
た２次射出圧力（保圧圧力）条件、各部のバンドヒータ
温度、型閉じストロークと速度、型締め力、型開きスト
ロークと速度、エジェクト制御条件等々が挙げられる。In the molding condition setting storage section 31, various molding condition values inputted by the key manual means 40 or other appropriate input means are stored in a rewritable form after being subjected to arithmetic processing as necessary. These molding conditions include, for example, the relationship between the screw position, screw rotation speed, and back pressure during the charging stroke, suckback control conditions, and detailed conditions from the injection start point (position) to the holding pressure switching point (position). Injection speed conditions, subdivided secondary injection pressure (holding pressure) conditions from the time of switching to holding pressure to the end of holding pressure, band heater temperature of each part, mold closing stroke and speed, mold clamping force, mold opening stroke and Examples include speed, eject control conditions, etc.
前記成形プロセス制御部３２は、予め作成された成形プ
ロセス制御プログラムと成形条件設定記憶部３１に格納
された設定条件値とに基づき、前記したセンサ２０〜２
７などからの計測情報及びマイコン３ｏに内蔵されたク
ロックからの計時情報を参照しつつ、ドライバ群４１を
介して対応する駆動源を駆動制御し、一連の成形行程を
実行させる。第１図においては、ドライバ群４１の駆動
信号ＤＩが制御弁４２を介して前記型締シリンダ５を駆
動制御し、駆動信号Ｄ２が前記バンドヒータ１４の電熱
源を駆動制御し、駆動信号Ｄ３が前記スクリュー１２回
転用のモータ１６を駆動制御し、駆動信号Ｄ４が制御弁
４３を介して前記射出シリンダ１７を駆動制御し、駆動
信号Ｄ５が前記製品シュート装置１０のシュート５１回
動用のモータ５２を駆動制御し、また、他の駆動信号が
図示せぬ適宜の駆動源を駆動制御するようになっている
。The molding process control section 32 controls the above-mentioned sensors 20 to 2 based on a molding process control program created in advance and setting condition values stored in the molding condition setting storage section 31.
While referring to the measurement information from the microcomputer 7 and the like and the time information from the clock built into the microcomputer 3o, the corresponding drive sources are driven and controlled via the driver group 41 to execute a series of molding processes. In FIG. 1, the drive signal DI of the driver group 41 drives and controls the mold clamping cylinder 5 via the control valve 42, the drive signal D2 drives and controls the electric heat source of the band heater 14, and the drive signal D3 drives and controls the electric heat source of the band heater 14. The motor 16 for rotating the screw 12 is driven and controlled, the drive signal D4 drives and controls the injection cylinder 17 via the control valve 43, and the drive signal D5 drives the motor 52 for rotating the chute 51 of the product chute device 10. Further, other drive signals drive and control appropriate drive sources (not shown).
前記実測値記憶Ｈ３４には、連続自動運転時における予
め設定されたモニタ項目の総べての実測値Ｘが、連続す
る所定多数回のショットにわたってその記録エリアに取
り込まれる。取り込まれるモニタ項目は大別すると、■
時間監視項目、■位置監視項目、■回転数監視項目、■
速度監視項目。In the actual measurement value storage H34, all actual measurement values X of preset monitor items during continuous automatic operation are captured in the recording area over a predetermined number of consecutive shots. The monitor items that are imported can be roughly divided into ■
Time monitoring items, ■Position monitoring items, ■Rotation speed monitoring items, ■
Speed monitoring items.
■圧力監視項目、■温度監視項目、■電力監視項目が挙
げられ、前記した成形運転条件設定項目の相当部分がこ
れとオーバーラツプし、成形品の品質に関連するであろ
うファクターがモニタ項目として予め設定されている。■Pressure monitoring items, ■temperature monitoring items, and ■power monitoring items are listed, and a considerable part of the molding operation condition setting items described above overlap with these items, and factors that may be related to the quality of molded products are set in advance as monitor items. It is set.
このモニタ項目の数は任意であるが、本実施例ではモニ
タ項目の数は３０〜５０程度とされ、前記したセンサ２
０〜２７なとからの計測情報及びマイコン３０に内蔵さ
れたクロックからの計時情報が必要に応じ変換処理され
て順次格納される。なお、モニタ項目はオペレータが選
択入力して設定することも可能である。The number of monitor items is arbitrary, but in this embodiment, the number of monitor items is about 30 to 50, and the number of monitor items is about 30 to 50.
Measurement information from 0 to 27 and clock information from a clock built into the microcomputer 30 are converted as necessary and stored sequentially. Note that the monitor items can also be set by selective input by the operator.
前記演算処理部３３は、実測値記憶部３４に記憶された
データが所定サンプリングショツト数に達すると各モニ
タ項目毎の実測値Ｘを統計演算処理し、
実測値Ｘのバラツキ範囲Ｒ＝ （ｘ、、、、−ｘ、、、
ｎ）と実測値Ｘの中央値Ｍｅ＝ （ｘ、、、、＋Ｒ／２
）、及び／または、
実測値Ｘの平均値ｘ＝（Σｘ、）／ｎと標準偏を先ず算
出し、
次に上記算出結果と適宜経験値によって予め設定されて
いる修正係数ａとによって、各モニタ項目毎の上・下限
値を
上限値＝Ｍｅ＋ａ−Ｒ／２
下限値＝Ｍｅ−ａ−Ｒ／２
もしくは、
上限値ヒＸ＋ａ・３σ／２
下限値＝ Ｘ −ａ・３σ／２
として算出する。このようにして算出された各モニタ項
目毎の上限値並びに下限値は、前記した上・下＠値設定
記憶部３５に転送されて記憶される。When the data stored in the actual measurement value storage unit 34 reaches a predetermined number of sampling shots, the calculation processing unit 33 performs statistical calculation processing on the actual measurement value X for each monitor item, and calculates the variation range R of the actual measurement value X = (x, ,,,-x,,,
n) and the median value Me of the actual measured value X = (x, , , +R/2
), and/or, first calculate the average value x = (Σx, )/n and the standard deviation of the actual measurement values X, and then calculate each Calculate the upper and lower limits for each monitor item as Upper limit = Me + a - R / 2 Lower limit = Me - a - R / 2 Or, Upper limit value - X + a · 3σ / 2 Lower limit value = X - a · 3σ / 2 . The upper limit value and lower limit value for each monitor item calculated in this way are transferred to and stored in the above-mentioned upper/lower@value setting storage section 35.
なお、この上・下限値の自動設定手法については、必要
があれば前記した先願（特願平１−１６９９９３号）を
参照されたい。Regarding the method of automatically setting the upper and lower limit values, if necessary, please refer to the above-mentioned earlier application (Japanese Patent Application No. 1-169993).
前記比較演算部３６は、上・下限値設定記憶部３５に格
納されたデータと、最新のショットにおける実測値デー
タ（例えば実測値記憶部３４から転送される）とを対比
し、製品の品質判定を行う。The comparison calculation unit 36 compares the data stored in the upper/lower limit value setting storage unit 35 with the actual measurement value data for the latest shot (for example, transferred from the actual measurement value storage unit 34), and determines the quality of the product. I do.
本実施例においては、１ショット毎に、金型から製品を
取り出す以前のタイミングで、比較・演算部３６は、３
段階（良品、良品と不良品の中間品、不良品）の評価分
けを行う。いま、総べてのモニタ項目の実測値が、予め
定められた上・下限値範囲内にあれば、比較演算部３６
は良品と判定し、この旨を示す信号を前記成形プロセス
制御部３２に送出し、これによって成形プロセス制御部
３２は前記シュート５１の回転位置を制御して該シュー
ト５１を前記した第１の回転停止位置Ａに位置付ける。In this embodiment, for each shot, before the product is taken out from the mold, the comparison/calculation unit 36 performs 3
The evaluation is divided into stages (good products, intermediate products between good and defective products, and defective products). Now, if the actual measured values of all monitor items are within the predetermined upper and lower limit ranges, the comparison calculation unit 36
is determined to be a good product, and sends a signal indicating this to the molding process control unit 32, whereby the molding process control unit 32 controls the rotational position of the chute 51 and rotates the chute 51 in the first rotation described above. Position at stop position A.
また、モニタ項目中の重要な項目の少なくとも１つの実
測値データが予め定められた上・下限値範囲内を外れた
場合や、モニタ項目中の比較的重み付けの軽い（比較的
軽視できる）所定数以上の項目の実測値データが予め定
められた上・下限値範囲内を外れた場合には、比較演算
部３６は不良品と判定し、この旨を示す信号を前記成形
プロセス制御部３２に送出し、これによって成形プロセ
ス制御部３２は前記シュート５１の回転位置を制御して
該シュート５１を前記した第２め回転停止位置Ｂに位置
付ける。さらにまた、モニタ項目中の比較的軽い重み付
けの項＠（比較的軽視できる項目）の１つもしくは所定
数以下の項目のみの実測値データが、予め定められた上
・下限値範囲内を外れた場合には、比較演算部３６は良
／不良の中間品と判定し、この旨を示す信号を前記成形
プロセス制御部３２に送出し、これによって成形プロセ
ス制御部３２は前記シュート５１の回転位置を制御しｔ
該シュート５１を前記した第３の回転停止位置Ｃに位置
付ける。In addition, if at least one actual value data of an important item among the monitor items falls outside the predetermined upper/lower limit value range, or if a predetermined number of monitor items with relatively light weighting (which can be taken relatively lightly) is detected. If the actual measured value data for the above items is outside the predetermined upper and lower limit ranges, the comparison calculation unit 36 determines that the product is defective, and sends a signal indicating this to the molding process control unit 32. Accordingly, the molding process control section 32 controls the rotational position of the chute 51 to position the chute 51 at the second rotational stop position B described above. Furthermore, the actual measured value data for only one of the relatively lightly weighted terms (items that can be neglected) or less than a predetermined number of items among the monitor items falls outside of the predetermined upper and lower limit value ranges. In this case, the comparison calculation unit 36 determines that the product is a good/defective intermediate product, and sends a signal indicating this to the molding process control unit 32, whereby the molding process control unit 32 determines the rotational position of the chute 51. control
The chute 51 is positioned at the third rotation stop position C described above.
斯様にすることによって、自動品質判別で、良品ではな
いと判別された製品をランク分けして振り分は可能とな
り、中間品から実用上許容される良品をピックアップす
る作業が簡単・容易となり、且つこのための作業時間も
短縮できる。By doing this, it becomes possible to rank and distribute products that are determined to be non-defective through automatic quality determination, and the task of picking out practically acceptable good products from intermediate products becomes simple and easy. Moreover, the working time for this can also be shortened.
なおここで、第１図において、４４はカラーＣＲＴデイ
スプレィ等よりなる表示装置、４５はドツトプリンタ等
のプリンタで、このａ刃装置４４゜４５には、マイコン
３０での処理結果などが必要に応じ出力される。また、
４６は磁気ディスク装置等の外部メモリで、マイコン３
０との間で必要に応じ情報の授受がなされる。In FIG. 1, 44 is a display device such as a color CRT display, 45 is a printer such as a dot printer, and the a-blade devices 44 and 45 output the processing results of the microcomputer 30 as necessary. be done. Also,
46 is an external memory such as a magnetic disk device, and the microcomputer 3
Information is exchanged with 0 as necessary.
上述した構成をとる本実施例においては、運転開始後、
ショットが安定して良品が連続して成形されていること
が、製品の計量・視認により確認されている所定回数シ
ョットのサンプリングによって、製品の品質判定のため
の各モニタ項目毎の前記した上・下限値がマイコン３０
に設定される。In this embodiment having the above-described configuration, after the start of operation,
It is confirmed by measuring and visually checking the product that the shots are stable and that good products are being continuously molded.By sampling a predetermined number of shots, the above-mentioned and above-mentioned tests are carried out for each monitor item to determine the quality of the product. The lower limit is microcontroller 30
is set to
そしてこれ以後は、マイコン３０は、運転条件に対応す
る各モニタ項目の上・下限値と最新ショットのこれに対
応する実測値とを対比し、前述した如き製品の３段階の
ランク分は判定処理と、この判定結果に基づく製品の仕
分は制御を実行する。After this, the microcomputer 30 compares the upper and lower limit values of each monitor item corresponding to the operating conditions with the corresponding actual measured values of the latest shot, and processes the three-level ranking of the product as described above. Then, the sorting of products is controlled based on this determination result.
ここで、本実施例においては、モニタ項目として例えば
、１次（射出）圧、２次圧（保圧）切替位置、１次射出
時間、クツション位置（スクリューの最前進位置）、チ
ャージ完了位置（スクリューの最後退位置）、サーモ（
ノズル先端部の樹脂温度）、チャージ時間、サイクル時
間、２次圧（保圧）等々が設定されている。そして、前
記した良品、中間品、不良品の判定には、これらの各モ
ニタ項目が用いられるが、製品種別（許容される品質）
に応じて、判定基準は任意に変更されるべきであること
は、当業者には自明である。In this embodiment, the monitor items include, for example, the primary (injection) pressure, the secondary pressure (holding pressure) switching position, the primary injection time, the cushion position (the most advanced position of the screw), and the charging completion position ( (most retracted position of the screw), thermostat (
The resin temperature at the nozzle tip), charging time, cycle time, secondary pressure (holding pressure), etc. are set. Each of these monitor items is used to determine the above-mentioned good, intermediate, and defective products, but the product type (acceptable quality)
It is obvious to those skilled in the art that the criteria should be arbitrarily changed depending on the situation.
なお、上述した実施例においては、製品を３段階に分け
て仕分けするようにしているが、４段階以上に品質の区
分は判定を行い、この判定結果に応じて製品を４箇所以
上の任意箇所に振り分は可能であることはいうまでもな
い。In addition, in the above-mentioned embodiment, the products are sorted into three stages, but the quality classification is determined at four or more stages, and the product is classified into four or more arbitrary locations according to the result of this determination. Needless to say, it is possible to allocate the amount to
［発明の効果］
叙上のように、本発明によれば、製品品質の判別結果に
応じて製品の振り分は箇所を複数の任意箇所に選択でき
、製品選別・搬送レイアウト上の自由度を向上させ得、
また、自動品質判別で良品ではないと判定された製品を
ランク分けして振り分は可能となり、良／不良の中間品
と判定された製品から、実用上良品と許容される製品を
容易に短時間にピックアップ可能となる、等の顕著な効
果を奏する射出成形機の製品シュート装置が提供でき、
その産業的価値は多大である。[Effects of the Invention] As described above, according to the present invention, it is possible to select a plurality of arbitrary locations for distributing products according to the result of determining product quality, increasing the degree of freedom in product sorting and transportation layout. can be improved,
In addition, it is now possible to rank and allocate products that have been determined to be non-defective through automatic quality discrimination, making it easy to categorize products that are acceptable for practical purposes from products that have been determined to be intermediate between good and defective. We can provide a product chute device for injection molding machines that has remarkable effects such as being able to pick up products on time.
Its industrial value is enormous.
第１図〜第３図は本発明の１実施例に係り、第１図は射
出成形機の要部の概略構成を示す説明図、第２図は製品
シュート装置の説明図、第３図は複数台の射出成形機を
並設した場合のレイアウトの１例を示す説明図、第４図
及び第５図は従来例に係り、第４ｒＩｔＪは製品振り分
はメカニズムの概略を示す説明図、第５図は製品受はホ
ッパーの平面図である。
１・・・・・・ベース、２・・・・・・固定ダイプレー
ト、３・・・・・・支持盤、４・・・・・・タイバー、
５・・・・・・型締シリンダ、６・・・・・・トグルリ
ンク機構、７・・・・・・可動ダイプレート、８・・・
・・・固定側金型、９・・・・・・可動側金型、１゜・
・・・・・製品シュート装置、１１・・・・・・加熱シ
リンダ、１２・・・・・・スクリュー １３・・・・・
・ノズル、１４・・・・・・バンドヒータ、１５・・・
・・・ホッパー、１６・・・・・・モータ、１７・・・
・・・射出シリンダ、２０・・・・・・射出圧力検出セ
ンサ、２１・・・・・・射出ストローク検出センサ、２
２・・・・・・スクリュー回転検出センサ、２３．２４
・・・・・・温度検出センサ、２５・・・・・・型開閉
ストローク検出センサ、２６・・・・・・型締圧力検出
センサ、２７・・・・・・シュート回転位置検出センサ
、３０・・・・・マイコン、３１・・・・・・成形条件
設定記憶部、３２・・・・・・成形プロセス制御部、３
３・・・・・・演算制御部、３４・・・・・・実測値記
憶部、３５・・・・・・上・下限値設定記憶部、３６・
・・・・・比較演算部、４０・・・・・・キー人力手段
、４１・・・・・・ドライバ群、４２．４３・・・・・
・制御弁、４４・・・・・・表示装置、４５・・・・・
・プリンタ、４６・・・・・・外部メモ１ハ ５０ ・
−−製品受はホッパー、５１ ・シュート、５２・・・
・・シュート駆動用のモータ、５３・・・・ベアリング
、５４・・・・ギヤ、５５・・・・・製品。Figures 1 to 3 relate to one embodiment of the present invention, in which Figure 1 is an explanatory diagram showing a schematic configuration of the main parts of an injection molding machine, Figure 2 is an explanatory diagram of a product chute device, and Figure 3 is an explanatory diagram showing a schematic configuration of the main parts of an injection molding machine. An explanatory diagram showing an example of the layout when multiple injection molding machines are installed in parallel, Figures 4 and 5 relate to the conventional example, and 4rItJ is an explanatory diagram showing an outline of the mechanism for product distribution. Figure 5 is a plan view of the product receiving hopper. 1...Base, 2...Fixed die plate, 3...Support board, 4...Tie bar,
5... Mold clamping cylinder, 6... Toggle link mechanism, 7... Movable die plate, 8...
...Fixed side mold, 9...Movable side mold, 1゜・
... Product chute device, 11 ... Heating cylinder, 12 ... Screw 13 ...
・Nozzle, 14...Band heater, 15...
...Hopper, 16...Motor, 17...
... Injection cylinder, 20 ... Injection pressure detection sensor, 21 ... Injection stroke detection sensor, 2
2... Screw rotation detection sensor, 23.24
... Temperature detection sensor, 25 ... Mold opening/closing stroke detection sensor, 26 ... Mold clamping pressure detection sensor, 27 ... Chute rotation position detection sensor, 30 ...Microcomputer, 31...Molding condition setting storage section, 32...Molding process control section, 3
3... Arithmetic control section, 34... Actual value storage section, 35... Upper/lower limit value setting storage section, 36.
... Comparison calculation section, 40 ... Key manual means, 41 ... Driver group, 42.43 ...
・Control valve, 44...Display device, 45...
・Printer, 46...External memo 1c 50 ・
--Product receiver is hopper, 51 ・Chute, 52...
...Chute drive motor, 53...Bearing, 54...Gear, 55...Product.
Claims (2)
質判別を、製品が金型から取り出される時点以前に行う
射出成形機において、 前記製品の取り出し箇所に設置された製品受け部に連な
ったシュート（落し管状部）を、該シュートの上部を回
転中心として回転駆動可能であるように設け、製品の品
質判別結果に応じて、前記シュートを２つ以上の予め定
められた回転停止位置の１つに選択的に位置付けるよう
にしたことを特徴とする射出成形機の製品シュート装置
。(1) In an injection molding machine that is equipped with a product quality determination function and that performs quality determination for each shot before the product is taken out of the mold, the injection molding machine is connected to a product receiving part installed at the product removal point. A chute (dropping tubular part) is provided so that it can be driven to rotate around the upper part of the chute, and the chute is moved to two or more predetermined rotation stop positions depending on the product quality determination result. A product chute device for an injection molding machine, characterized in that the product chute device is selectively positioned on one side.
良判定と、良／不良の中間判定と、不良判定との３段階
に分けて評価するようになし、各判別結果に応じて前記
シュートを予め定められた３つの回転停止位置の１つに
選択的に位置付けるようにしたことを特徴とする射出成
形機の製品シュート装置。(2) In claim 1, the quality determination of the product is performed by:
Evaluation is divided into three stages: good judgment, intermediate judgment of good/bad, and bad judgment, and the chute is selected as one of three predetermined rotation stop positions according to each judgment result. A product chute device for an injection molding machine, characterized in that the product chute device is positioned in a central position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2255265A JP2593239B2 (en) | 1990-09-27 | 1990-09-27 | Product chute device of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2255265A JP2593239B2 (en) | 1990-09-27 | 1990-09-27 | Product chute device of injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04135724A true JPH04135724A (en) | 1992-05-11 |
| JP2593239B2 JP2593239B2 (en) | 1997-03-26 |
Family
ID=17276350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2255265A Expired - Fee Related JP2593239B2 (en) | 1990-09-27 | 1990-09-27 | Product chute device of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2593239B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0698468A1 (en) * | 1994-08-18 | 1996-02-28 | SUMITOMO WIRING SYSTEMS, Ltd. | Weight checker for moldings |
| DE112022001899T5 (en) | 2021-03-31 | 2024-01-11 | Sumitomo Heavy Industries, Ltd. | QUALITY PREDICTION APPARATUS AND METHOD THEREOF, PROGRAM AND RECORDING MEDIUM |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6450917U (en) * | 1987-09-24 | 1989-03-29 |
-
1990
- 1990-09-27 JP JP2255265A patent/JP2593239B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6450917U (en) * | 1987-09-24 | 1989-03-29 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0698468A1 (en) * | 1994-08-18 | 1996-02-28 | SUMITOMO WIRING SYSTEMS, Ltd. | Weight checker for moldings |
| US5817988A (en) * | 1994-08-18 | 1998-10-06 | Sumitomo Wiring Systems, Ltd. | Weight checker for moldings |
| DE112022001899T5 (en) | 2021-03-31 | 2024-01-11 | Sumitomo Heavy Industries, Ltd. | QUALITY PREDICTION APPARATUS AND METHOD THEREOF, PROGRAM AND RECORDING MEDIUM |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2593239B2 (en) | 1997-03-26 |
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