JPS58197031A - Detector for defective thickness of injection molding - Google Patents
Detector for defective thickness of injection moldingInfo
- Publication number
- JPS58197031A JPS58197031A JP7959582A JP7959582A JPS58197031A JP S58197031 A JPS58197031 A JP S58197031A JP 7959582 A JP7959582 A JP 7959582A JP 7959582 A JP7959582 A JP 7959582A JP S58197031 A JPS58197031 A JP S58197031A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- cavity
- detection
- rod
- detection unit
- 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
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
- B29C45/84—Safety devices
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】
この発明は射出成形品の欠肉不良検出装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for detecting underfill defects in injection molded products.
従来、この種、欠肉不良検出装置は第5図に示すように
、金型102に4Wi通した検出用プランジャ101と
その外方に配設したリミットスイッチ104との間に、
この検出用プランジャ101の外端!101 aと接す
るピン106を一体的に設けたアーム107を、アーム
107背而にてリミットスイッチ104を作動すべく基
板105との間にスプリング108を作用させて可動自
在に軸承するとともに、アーム107自由端に調整スプ
リング111および調整ナツト112とポルト110と
によシ信成され、この検出用プランジャ101の先端は
金型102のキャビティー内に突出されている。したが
って、今91旨等が金型キャビティー内に充填されるこ
とになり、その圧力で検出用プランジャ101が外1!
11へ押出され、その移動ヲリミソトスイッチ104等
で信号として取出して充填の検出を行っていた。ところ
が、原型的には上記のように確立されているこのシステ
ムも、実際に現場に導入しようとすると、例えば成形品
の多数個取り(4個取り〜32@取り)金型、とくに小
物部品の金型に上記システムを附設しようとした場合、
例えば16個取りの金型の場合には16個のリミットス
イッチ104を取付ける必要があるが、スペース的に固
唾であり、金型自体も空洞部が増えての4度が低下する
欠点があり、寸た、金型冷却水の洩れおよび金型冷@に
ともなう結露水等により錆が発生して噴出用プランジャ
101と金型102とが司付き、金型キャビティー内に
合゛咬側指等が充填しても検出用プランジャ101が作
動しない等の欠くかあ、った。Conventionally, as shown in FIG. 5, this type of underfill defect detection device has a sensor between a detection plunger 101 passed through a mold 102 through 4 Wis and a limit switch 104 disposed outside of the plunger 101.
The outer end of this detection plunger 101! An arm 107 integrally provided with a pin 106 in contact with the arm 101a is movably supported by a spring 108 acting between the arm 107 and a base plate 105 to operate the limit switch 104 behind the arm 107. An adjustment spring 111, an adjustment nut 112, and a port 110 are connected to the free end, and the tip of the detection plunger 101 projects into the cavity of the mold 102. Therefore, the mold cavity is filled with 91, etc., and the pressure causes the detection plunger 101 to move outward.
11, and its movement is taken out as a signal by a limit switch 104 or the like to detect filling. However, when trying to actually introduce this system, which has been established as a prototype as described above, into the field, it becomes difficult to use, for example, multi-cavity (4-cavity to 32-cavity) molds for molded products, especially small parts. If you try to attach the above system to the mold,
For example, in the case of a 16-cavity mold, it is necessary to install 16 limit switches 104, but it takes up a lot of space, and the mold itself has the disadvantage that the number of cavities increases and the 4 degree angle decreases. In addition, rust occurs due to leakage of mold cooling water and condensation water caused by cooling the mold, causing the ejection plunger 101 and the mold 102 to become attached, causing fingers, etc. on the bite side to overlap inside the mold cavity. The detection plunger 101 may not operate even if it is filled.
本発明は上記従来欠点に鑑みなされたもので、検出用プ
ランジャの情による作動不良がなく、かつ小物射出成形
部品の多数個取り用の金型に容易に附設することのでき
る射出成形品の欠肉不良検出装置を提供することを目的
とするものである。The present invention has been made in view of the above-mentioned conventional drawbacks, and is an injection molded product which is free from malfunction due to the detection plunger and which can be easily attached to a mold for molding a large number of small injection molded parts. The object of the present invention is to provide a meat defect detection device.
次に、本発明の一実施例を閏にしたがって説明する。雫
中1は多数個の部品を射出酸形する金型であって、可@
金型2と固定金型6とからな)、両金型2,3の合せ面
には相互に整合して襟数個(木例では8個の場合を例示
した)の部品を成形するキャビティー4,4′が塑1役
されている。甘だ、可動金型2の各キャビティー4には
同金型2の背面側へ貰1申するJW舗孔5が貫設されて
いる。Next, one embodiment of the present invention will be explained using a leap line. Shizuku Naka 1 is a mold for injection molding of many parts, and it is possible @
mold 2 and fixed mold 6), and the mating surfaces of both molds 2 and 3 have cavities that align with each other and mold several parts (eight pieces are shown in the wooden example). Tees 4 and 4' are playing the role of plastic. Unfortunately, each cavity 4 of the movable mold 2 is provided with a JW hole 5 extending to the back side of the mold 2.
6は可動金型2の背面側に附設された欠肉不良検出装置
であって、この装置6は成形部品の取出し機能を本兼ね
るもので複数本の検出ユニツ)11と上下のエジェクタ
ー板7,8とによシ構成され、上下のエジェクター板乙
8は一俸状に連結されて可@金型2に対しラム等を介し
て独立的にQ後進可能に設けられている。また、上lエ
ジェクター板7には+:+r m金型2に縦設した摺動
孔5と整合する位置には検出ユニット11tl−嵌込み
可能に取付1■部9が凹設されるとともに、同門部9に
は摺動孔5と整合しかつ検出ユニット11の検出用ロッ
ド21を@1−可能な孔10がそれぞれ即殺され、取付
四部9にはそれぞれ検出ユニット11の検出用ロッド2
1が孔10に棚連されて嵌込まれ下エジェクター板8に
より嵌込み、内定されるとと本に、検出ユニット11の
検出用ロフト21は可動金型2のp/4@孔5に挿通さ
れてその先端部がキャビティー4内に若干突出するよう
に虎設されている。Reference numeral 6 denotes a defect detection device attached to the back side of the movable mold 2. This device 6 also has the function of taking out molded parts, and includes a plurality of detection units 11, upper and lower ejector plates 7, The upper and lower ejector plates 8 are connected in the shape of a single piece and are provided so as to be able to move backward independently with respect to the mold 2 via a ram or the like. Further, the upper ejector plate 7 is provided with a recessed mounting part 9 at a position aligned with the sliding hole 5 vertically provided in the mold 2 so that the detection unit 11tl can be fitted therein. In the same gate part 9, there are holes 10 that are aligned with the sliding holes 5 and that allow the detection rods 21 of the detection unit 11 to be inserted.
The detection loft 21 of the detection unit 11 is inserted into the hole 5 of the movable mold 2, and the detection loft 21 of the detection unit 11 is inserted into the hole 10 and inserted into the lower ejector plate 8. It is shaped so that its tip slightly protrudes into the cavity 4.
次に、上記し九楡出用ユニット11について詳述すると
、12はユニット本体であって、導電性を有する金属材
から円@状に形成され、その一端+1llliには蓋体
18を螺着するねじ部13が螺設されている。また、ユ
ニー7)本112の内周部にはフランジ部14が突設さ
れて、同フランジ部14金境として凹状部15.16が
形成されている。また、凹状@16側に(d外周へ直通
してリード@50を挿i11する孔17が形成されてい
る。18はユニット本体12の1本であって、遣ぽ性を
有する金属材により円筒状に形成され、円周部は検出用
ロッド21を摺動可能に案内する案内孔19が形成され
るとともに、案内孔19の径より大径のユニット本体1
2のねじ部15と螺合する雌ねじ部20が形成されてい
る。211d検出用ユニツト11の検出用ロッドであっ
て、4電性を有する金属材により所定の長さを有する環
状体に形成され、その基部にはユニット本体12の凹状
部15内に摺動可能に封入されるフランジ部22が形成
されるとと本に、同フランジ部22には先端部に球面部
を有する所定長さの突起部23が形□されている。Next, to explain in detail the above-mentioned unit 11, 12 is the unit main body, which is formed from a conductive metal material in the shape of a circle, and a lid 18 is screwed to one end of the unit 11. A threaded portion 13 is threaded. Further, a flange portion 14 is provided protruding from the inner peripheral portion of the unit 7) book 112, and a concave portion 15, 16 is formed as a border of the flange portion 14. In addition, a hole 17 is formed on the concave @16 side (d) through which the lead @50 is inserted directly to the outer periphery. The circumferential portion is formed with a guide hole 19 that slidably guides the detection rod 21, and the unit body 1 has a diameter larger than that of the guide hole 19.
A female screw portion 20 is formed to be screwed into the screw portion 15 of No. 2. 211d A detection rod of the detection unit 11, which is formed into an annular body having a predetermined length from a metal material having four electric properties, and has a base that can be slid into the concave portion 15 of the unit body 12. Once the flange portion 22 to be enclosed is formed, a protrusion portion 23 of a predetermined length having a spherical portion at the tip is formed on the flange portion 22 .
24 Fl:1l−rlif部15内に納められるウェ
ブスプリングであって、ばf″11等により図示のよう
に路面面状に形成されその中心部には検出用ロッド21
の突9部23を挿通可峠な孔25が貫設され、外力が加
わったときには呵示のように1凹状部15内で平板状に
弾性変形するように形成されている。このように形成さ
れたウェブスプリング241dユニット本体12の凹状
部15に納められるとともに、検出用ロッド21の突起
部26がウェブスプリング24に挿通されてフランジ部
22が凹状部15内に準められ、蓋体18の雌ねじ部2
0がユニット本体12のねじ部13に螺合されてフラン
ジ部22は田状部15内に封入されて締出用ロッド21
は+q付けられて(へる。このように2・!!付けらf
Iた弊・出用ロッド21rまその先喝側に外力が阜ると
ウェブスプリング24を弾性変セして移動し、外力が解
かれるとウェブスプリング24の囃惟復元力によって元
のイ装置に復するよう1こ形成されている。24 Fl: A web spring housed in the 1l-rlif section 15, which is formed into a road surface shape as shown in the figure by bf''11, etc., and has a detection rod 21 in its center.
A hole 25 is provided through which the protrusion 9 23 can be inserted, and is formed so as to be elastically deformed into a flat plate shape within the concave portion 15 when external force is applied, as shown in FIG. The web spring 241d thus formed is housed in the concave portion 15 of the unit main body 12, and the protrusion 26 of the detection rod 21 is inserted through the web spring 24 so that the flange portion 22 is aligned within the concave portion 15, Female thread part 2 of lid body 18
0 is screwed onto the threaded portion 13 of the unit main body 12, and the flange portion 22 is enclosed within the field portion 15 to form the locking rod 21.
is added with +q (Heru. Like this, 2!! is added with f
When an external force is applied to the end of the output rod 21r, the web spring 24 elastically changes and moves, and when the external force is released, the restoring force of the web spring 24 restores the original device. One piece is formed so that it can be bent.
なお通常時に:は検出用ロフト211はスプリング24
によシ苦不18の殺差1面IC:・丘!ミ当接した杖喉
(である。26寸ホ7レダーであって合咬イr旨等の曖
破寸からなり、図示のようにユニット*俸12の田状部
16に嵌入する位皿形状に@まされるとともに、その耳
部にtdユニ7)木犀12のフランジ部14の内周と整
合する孔27が1投されている。このように形成さnた
ホルダー26に・−im圧部28および41’@ 42
9が(ハ)嵌さnている。この加圧部28、、.1・1
1111
はm圧月亀ゴムからなりホルダー26内に嵌入用能にホ
ルダー26内・条よシ若干大径の円板状に形成されてい
る。心嘩邪29は處、痺の酸気良IJ41体からなり、
ホルダー26内に納められて71圧刑2Bに147僑壮
に当挺されリードff130と遭電状准に接種されてい
る。このよう−′7r+子可28およrトー唖”!’2
9を7士めさ小7L/ X〜261廿ユニ7ト宏俸12
の・凹状邪16にiμ2享する。とともに、その外イ目
:にt、−を合成(鉛再の紀嗜dっ−ら々る111がセ
付6寸られで、Tモー28および一啄燵29はホルダー
26および呵蓋31を会して」rP扛16内に椿4状(
で封入されている。なお、この虜全、櫓す用ロッド21
の突舅鍵23の先歳にスプリング24により■子細28
【欠し醗宏の″1屏で)男さfでいる。Note that during normal operation: the detection loft 211 is the spring 24
Yoshikunfu 18's Satsusen 1st page IC:・Oka! The throat of the cane (26 inch) is made of an ambiguous broken size such as a joint bite, and has a plate shape that fits into the field part 16 of the unit 12 as shown in the figure. At the same time, one hole 27 is formed in the ear portion of the tduni7), which aligns with the inner circumference of the flange portion 14 of the td 12. In the holder 26 formed in this way, -im pressure parts 28 and 41' @ 42
9 is (c) fitted. These pressurizing parts 28, . 1・1
1111 is made of m-pressure rubber and is formed into a disk shape with a slightly larger diameter in the holder 26 so that it can be inserted into the holder 26. The 29 souls are made up of 41 sour IJ bodies.
It was stored in the holder 26 and was used in the 71st pressurization 2B for 147 hours, and was inoculated with the lead FF130 and the emergency warrant. Like this - '7r + child 28 and r tomau''!'2
9 to 7 students, elementary school, 7L/X ~ 261 units, 7 units, 12
・Concave evil 16 and iμ2 enjoy. At the same time, the outside A eye: is synthesized with t and -. "Meet me" rP 16 has 4 camellias (
It is enclosed in. In addition, this prisoner, the rod for turret 21
■ Detail 28 due to spring 24 at the end of the key 23
[In ``1 byo'' by Nobuhiro Kashi] I am a man.
かぐして刑喫された一蕾出弔ユニット11は上エジェク
ター仮70取付IJU部9にその検出用ロッド21が孔
IDV!−橋通され挿通ット′X1不12が嵌iべまれ
て下エジェクター板8を介して組付けら几るとともに、
各検出用ロッド21(仕町噌余型2の各4@孔5VCs
通されて、その先為はギャビテ(−・・′。The detection rod 21 of the single bud extrusion unit 11 that was sniffed and killed is located in the IJU section 9 where the upper ejector temporary 70 is attached to the hole IDV! - The bridge is passed through and the insertion hole 'X1' is fitted and assembled via the lower ejector plate 8, and
Each detection rod 21 (each 4 @ hole 5 VCs of Shimachiso extra type 2)
It was passed, and the first thing that happened was Gabite (-...'.
4内に若干突出状に設けられている。また、この耐雨金
型2は可動フレーム32に固定されて固定金型6に対し
前後進されるもので、この可動金型2に対し欠唆不良惰
出体習6け町匈金型2七一体的に′@後進されかつ蛍独
にラム等を介してEIT慴金や2 IC対しQ後句可能
に設けられている。It is provided in a slightly protruding shape within 4. Moreover, this rainproof mold 2 is fixed to a movable frame 32 and is moved back and forth with respect to the fixed mold 6. It is integrally moved backwards and is provided so that it can be moved back to EIT and 2 IC via a ram or the like.
次(・で、鴫3濁(1> (1) lは欠肉不良玲出装
臂6の膚気回格図(8個取りの鳩舎)で第3図(1)は
欠肉不良の有冊を検出するm路、第3m(1>は各検出
ユニッ)MA〜j1Hの万一の故障をモニターする1司
絡である。部所@33を介してC在流電ン原にはヒユー
ズ、メーンスイッ4−54を経たのちパイロットランプ
YLを並列に般け、常閉を屯RXより各リレーR11〜
R18と各検出ユニット11A〜11Hが各対応して同
列に接種されており、さらに各リレーR11〜R18に
は嫌糎ランプGLが並列に#売され、また、各検出ユニ
ット11A〜IIHに4−j各すレーR11〜R18の
自己保持用常¥七点R11aj〜R+BaI力;それぞ
れ並列に4咬されている。また1、直喋峻ン給(こ嘘濱
≠従寺RYとリレーR3とが1c々1jに接く場九てお
シ、リレーR3の目己珠持用冨峙仮つR3が常閉接点R
Xを介して苓鴫接点RYにM ’l:に9繞さ几ている
。甘た1、(−販源にはりしR18a2が各対応して直
列に接・啼されており、(にリレーR21〜R28の自
己保持甲常醋接つR21&〜R2Baカニ常閉従寺であ
るリセットスイッチLSIより常閉栓占Rき〜R3およ
アダTQ屡令RHa2〜RIFta2にそれぞれ#刷1
に4侵されており、さらに赤色ランプRLが各リレーR
21〜R2Bにそれぞれ並列に#続されている。また、
上記とtブ独立した同系で常閉接+g、R21b〜R’
)F3b 2よ塚宗オ后占R11a5〜RIBa3:;
zジェクp−vv−F、E:v!−:’1列[4遭さ几
、まfc常−接点R21o〜R2p’Bおよび常開接点
R11cL3〜RIFIL3と#列K リセ7 ) X
イフf L S 2が常開接くとして接続されている
。Next (・, 3 turbidity (1> (1) l is a circulatory diagram (8 pigeon lofts) with defective underfilling, and Figure 3 (1) shows the presence of defective underfilling. This is the 1st link that monitors the 3rd m path (1> is each detection unit) MA to j1H in case of a failure.A fuse is connected to the C current source through section @33. , after passing through main switch 4-54, pilot lamp YL is connected in parallel, and normally closed is connected to each relay R11~ from tun RX.
R18 and each of the detection units 11A to 11H are inoculated in the same row in correspondence with each other, and each relay R11 to R18 is inoculated with an anti-adhesive lamp GL in parallel, and each of the detection units 11A to IIH is inoculated with 4- j Normally 7 points R11aj~R+BaI force for self-holding of each relay R11~R18; 4 bits are engaged in parallel each. In addition, 1. When RY and relay R3 touch 1c and 1j, R3 is a normally closed contact. R
9 is connected to M'l: via X to the contact point RY. Amata 1, (-Relays R18a2 are connected and connected in series in correspondence with each other, and R21&~R2Ba is always closed, which connects the self-maintenance of relays R21 to R28. From the reset switch LSI, set #1 to the normally closed valves R~R3 and Ada TQ series RHa2~RIFta2, respectively.
4, and the red lamp RL is on each relay R.
21 to R2B in parallel. Also,
Normally closed connection +g, R21b~R' in the same system that is independent of the above
)F3b 2yo Tsuka Souo Empress R11a5~RIBa3:;
z Jek p-vv-F, E:v! -:'1 row [4 encounters, mafc normally-contacts R21o to R2p'B and normally open contacts R11cL3 to RIFIL3 and # row K lyse 7)
If f L S 2 is connected as a normally open contact.
上記のように弯峻された本実施例の作用を呪明する。射
出変形喝一般の#1作として、まず固定金型3111i
へ町劾金型2が移動し、両金型2,3は型締めされる。The operation of this embodiment, which has been made steeper as described above, will be explained below. As the #1 general injection deformation machine, we first created the fixed mold 3111i.
The mold 2 is moved, and both the molds 2 and 3 are clamped.
この型締めした状嘘では、第41閉G()に示すように
溶−@(指は未充填であるから、構出用ユニット11の
検出用ロッド21の元端はウェブスプリング24に付勢
されて各キャビティー4内に若干空出されている。次に
溶p4@脂が射出されて各キャビティー4内に充填され
ると、検出用ロッド21吋層晰圧により細動されると共
にウェブスプリング24は略平板状に強性変形され検出
用ロッド21の突紀部23の先端は加圧@21に当接さ
れるため(鳩4図(ロ)参画)、喧流はリード@30か
ら償爆部29、加圧部28、突司部26を経て金型2,
6あるい(はエジェクター板乙8へ流れる。各キャビテ
ィーに附設された上記の検出用ユニット11A〜11H
が動作すると、各リレーR11〜R18に通電され常開
接点R11〜R18はONになり、各リレーR11〜R
18は自己保持され、エジェクターリレーREJへの−
i!1式準備が完了する。同“寺に各撮色ランプも蝿灯
し、各検出用ユニット11の作動をtaすることが出来
る。次に一定時間冷却をしたのちに、0J@金型2は固
定缶、型6より離れる方向に連動し型開きされ、次に、
エジェクターリレーREJ1田略への涌亀によシ咬形部
品の取り出し機能であるエジェクター動作?行なう。第
4叉(ハ)はエシークター板乙8が噛進し、成形部品を
取シ出している状隻を示し、第4・叉(勾はエジェクタ
ー板乙8が後退した状態を示したが、各検出用ロッド2
1(d増動孔5との」習@抵抗により先端部がキャビテ
ィー4内に若干突出された状態を保つ。次に可@金型2
は固定金型3側へ移動し、再び型締めされるが、型締め
の動作において、両全型が締まる直前は金型保護の目的
で、低圧型締めにて@作し、その4高l+E型締めにて
・両金型を十分に型締めするのが一般的勘作でちる。こ
の低圧型締めのリレーの常開接点RXにて、前記回路の
自己保持状態が解除され再7ド前記@作がくり返される
。In this mold-clamped state, as shown in the 41st closed G (), the melting finger is unfilled, so the base end of the detection rod 21 of the assembly unit 11 is biased against the web spring 24. Then, when the melt P4@fat is injected and filled into each cavity 4, the detection rod 21 is fibrillated by the lucid pressure. The web spring 24 is strongly deformed into a substantially flat plate shape, and the tip of the protruding portion 23 of the detection rod 21 is brought into contact with the pressure @ 21 (participating in Figure 4 (b)), so the turbulence is caused by the lead @ 30. From there, the mold 2 passes through the detonation section 29, the pressure section 28, and the protrusion section 26.
6 or (flows to ejector plate Otsu 8. The above detection units 11A to 11H attached to each cavity
When activated, each relay R11 to R18 is energized, the normally open contacts R11 to R18 are turned ON, and each relay R11 to R18 is turned on.
18 is self-held and connected to ejector relay REJ.
i! Preparation for 1 set is completed. Each coloring lamp is also lit at the same time, and the operation of each detection unit 11 can be controlled.Next, after cooling for a certain period of time, 0J@mold 2 is separated from the fixed can and mold 6. The mold is opened in conjunction with the direction, and then
Is the ejector operation that is the ejector function of the Wakukame-yoshi-shaped parts to the ejector relay REJ1? Let's do it. The fourth fork (c) shows the state in which the ejector plate Otsu 8 has advanced and is ejecting the molded part, and the fourth fork (c) shows the state in which the ejector plate Otsu 8 has retreated, but each Detection rod 2
1 (d) Due to the resistance of the increasing hole 5, the tip part remains slightly protruded into the cavity 4.Next, the mold 2
moves to the fixed mold 3 side and is clamped again, but in the mold clamping operation, just before both molds are clamped, low pressure mold clamping is used for the purpose of mold protection, and the 4th height L+E During mold clamping: It is common practice to clamp both molds sufficiently. At the normally open contact RX of this low-pressure mold clamping relay, the self-holding state of the circuit is released and the above operation is repeated again.
次に溶′4樹脂が射出されたづよ、キャビティー4内に
未充填であった場合は検出用ロフト21は押動されない
ため検出用ユニット11は@伶せず、結果未充崎のキャ
ビティーのみの緑色ランプは点灯せずそしてエジェクタ
ーリレーREJへの通電が無い為、型開き後においてエ
ジェクター句作(はせず、欠肉不良品は金型についたま
まの状隻で射出成形機は停止する。一般的な射出成形機
に2いてはサイク/l/異常としてブザーが鳴シ、作業
者に知らせるが欠内不良品ld今型についたま1でちる
ので、良品との混入(d僻けられる。そしてリセットス
イッチLS2を梱せばREJに通電するためエジェクタ
ー@作により欠肉不良品は容易に取り出すことが出来る
。Next, when the molten resin is injected, if the cavity 4 is not filled, the detection loft 21 will not be pushed, so the detection unit 11 will not move, and as a result, the cavity 4 will not be filled. Since the green lamp does not light up and there is no power to the ejector relay REJ, the ejector does not close after the mold is opened, and the defective product with insufficient thickness remains attached to the mold, and the injection molding machine stops. .In a general injection molding machine, a buzzer sounds to notify the operator that there is a cycle/l/abnormality. .If the reset switch LS2 is packed, the REJ is energized, so defective products with insufficient thickness can be easily removed using the ejector @.
次に、憤出用ユニット11が短絡故障を起こした場合に
ついて畷明する。鳩3 ’21 (1)にお込て射出リ
レーの常開接点RYが射出により閉じ、リレーR3に・
弔電されると常開接点R3によりリレーRろは自己保持
され、同時に常開接点R3〜R3は開く。そして射出に
よシ溶I4#脂が充填すればリレー R11〜R18が
入り常開接点R11a2〜R18a2fq閉じるが常閉
接点R3〜R3は開いているためすV−R21〜R28
は動作しない。そして射出成形機がエジェクター功作後
型締めに入シ低圧型締めリレーが入るとそれの常閉接も
RXが開きリレーR3の自己保持1ま4除さ九るため常
開接点R6〜R3は閉じる。そして再び射出によって常
開接点RYが閉じるが、その1…において常開接点R1
1a2〜R18a2のうちどれ刀・が閉じておればリレ
ーR21〜R28のうちそれに対応するリレーが動作し
同時にそれの赤角ランプが点灯し更に自己保持によりエ
ジェクターリレーRP2Jの回路を開くため型開き後の
エビエクタ動作(は行なわない。なおリセットスイッチ
LSIはその時の自己保持を解除する為にある。Next, the case where the discharge unit 11 causes a short-circuit failure will be explained in detail. Pigeon 3 '21 (1) The normally open contact RY of the injection relay closes due to injection, and relay R3
When an electric current is received, the relay R is self-held by the normally open contact R3, and at the same time, the normally open contacts R3 to R3 are opened. Then, when the molten I4# fat is filled by injection, relays R11 to R18 enter and the normally open contacts R11a2 to R18a2fq close, but the normally closed contacts R3 to R3 remain open. V-R21 to R28
doesn't work. When the injection molding machine enters mold clamping after the ejector works successfully, the low-pressure mold clamping relay enters, its normally closed contact also opens RX, and the self-holding of relay R3 is reduced by 1 or 4, so the normally open contacts R6 to R3 are close. Then, the normally open contact RY closes again due to injection, but in that 1..., the normally open contact R1
If any of 1a2 to R18a2 is closed, the corresponding relay among relays R21 to R28 will operate, and at the same time its red lamp will light up. Furthermore, the circuit of ejector relay RP2J will be opened by self-holding, so after the mold is opened. The evictor operation (does not occur).The reset switch LSI is provided to release the self-holding at that time.
上記の状態は検出用ユニット11か正常に動作している
時には司唇ないが、不言の厚内で締出用ユニット11が
短絡した時に上記@作が行なわれる。The above state does not occur when the detection unit 11 is operating normally, but the above operation is performed when the exclusion unit 11 is short-circuited within the limit.
この締出ユニットが短絡する要因として(r:11リー
ド線の金型内でのシ冒−ト
2検出ユニット内部での短絡故障
6工ジエクタ動作後キャビティー内に部品が性っている
場合
があげられるが、いずれの場合も上記回路でモニターが
出来るため、異常を作業者に知らせることが出来る。The cause of short-circuit in this shut-out unit is (r: 11 lead wire inside the mold, sheet 2 short-circuit failure inside the detection unit 6) There may be parts stuck inside the cavity after the jector is operated. However, in either case, the above circuit can be used to monitor and notify the operator of any abnormality.
上述したように、欠肉不良検出装置乙の検出用ユニッ)
11 ’=まユニット本体12内に検出用ロフト21
とホルダー26および盲蓋31を介してポ囁部29およ
び加圧部28全絶繊して内装する−俸篠噴であるから、
噌出甲ユニット11全体を曙めて小泪化することができ
、しかもリード線はエジェクター板7,8あるい1叶金
型2をアーヌ線として輝ねるため一本で済訃ので4e個
取りの金型2゜31・て対しエジェクター板7,8を介
して成型品の剤出しを兼ねろ横穴としても検出用ユニッ
ト11の附約を各基に行うこと7’liできる。また、
欠肉不良検出装置6(は成型品の押出しを兼ねるもので
あるから、例えば拝期間今型2,3が放置されて再使用
する場合、締出用ロフト21が金型2に哨により固傭し
たf四(Cあっても、金型2,3の段取りの時貞でhk
形品禅出し装置として作動されることで検出用ユニット
11の検出用ロッド21(は金型2の〜動乱5に府って
1匈されるので固肴した状■が解除されて、作動不良を
防止すること≠5できる。As mentioned above, the detection unit of the underfill defect detection device B)
11'=There is a detection loft 21 inside the unit body 12.
The pressure part 29 and the pressurizing part 28 are completely fiber-free and internalized through the holder 26 and the blind lid 31.
The entire ejector unit 11 can be submerged and reduced, and since the ejector plates 7 and 8 or the first leaf mold 2 can be used as wires, only one lead wire is needed, so 4e pieces can be taken. The detection unit 11 can be attached to each mold 2° 31 as a horizontal hole which also serves as a side hole for dispensing the molded product through the ejector plates 7 and 8. Also,
Since the defective underfill detection device 6 (also serves as a device for extruding the molded product), for example, if the molds 2 and 3 are left unattended during the molding period and are to be reused, the extrusion loft 21 is fixed to the mold 2 by a guard. Even if there is f4 (C, hk
When the detection rod 21 of the detection unit 11 is operated as a device for removing the molded product, the detection rod 21 (of the detection unit 11) is blown away by the turbulence 5 of the mold 2, so the fixed state is released and malfunction occurs. It is possible to prevent ≠ 5.
なお、本実イ1俸1に2いてIは憔出弔ユニット11と
エジェクター板乙8とを組合せ構成して成型品の伸出碍
・看牙¥ねる欠因不曵5横出装置6として例示したが、
検出用ユニツ) 11は例えば多数個取り金型に対し咀
接収付けることが可能で、この場合従来の検出用プラン
ジャ101に近接してリミットスイッチ104を附設す
るものに比し、梃めてコンパクトに附設することができ
る。″i!、fC1本例4唱用ユニット11の附設する
場所として(、寸樹I旧成型品の欠肉しやすい個所に設
置することば勿論のことである。+た、上記実施例にお
いては欠肉不良検出装置6を可動金形に附設して例示し
たが固定金型に附設してもよい。In addition, I is constructed by combining the extrusion unit 11 and the ejector plate Otsu 8, and serves as a defective ejection device 6 for elongation and maintenance of the molded product. I gave an example,
For example, the detection unit 11 can be fitted into a multi-cavity mold, and in this case, it is more compact than the conventional detection plunger 101 in which a limit switch 104 is attached close to the detection plunger 101. It can be attached. ``i!, fC1 This Example 4 As an attached place for the chanting unit 11 (It goes without saying that it is installed in a place where the old molded product is likely to be lacking in thickness. Although the meat defect detection device 6 is attached to a movable mold in the example, it may be attached to a fixed mold.
さて、本発明は多数個の射出穴形部品を成形する可動金
型の各キャビティーに、核今型の背面側へW通する府動
孔を設け、前記口JIITIl今型の背面側には咳金七
と連繋するエジェクター板を配設するとともに、曲把I
′Tl動金型とエジェクター板との間K(は先瑞部が前
記可拘金型の・習町孔に挿Iルされて前記キャビティー
内に突出し、嫉端部にはフランジ部と突房部とを有する
検出用ロッドと前記エジェクター板に取付けられるユニ
ット本体とからなシ、核ユニット不体にtは@紀検出用
ロフトの基端部rウェブスプリングを介して弾装すると
ともに、さらに、ユニット本体には絶縁部寸からなるホ
ル〃−全て1−シてリード線を接続した(曝部と加圧部
とを納めかつ前記加圧部に対し前記検出ロッドをウェブ
スプリングを介して接層可能に設けた検出用ユニットを
l!ii!殺して、@記各キャビティーへの射出圧によ
り@把各検出用ユニットの検出用ロッドを作動して前記
如印部1て当接することで射出咬形の佐躍イ埒号と前記
エジェクター板を@叱可匈金型とは独立的に作動する信
号とν取出す構成としたものであるから、射出成形部品
の良否を琴易に運用することができかつ成形部品の取出
しを同時に行うことができ、捷た検出用ユニットはその
ユニット本体に検出用ロフトとリード線を接蓑したく哨
邪および圓千部とをホルダーを介して納める1′4咬で
あるから、版めて小型化することができるので、多数個
取シの金型に極めて容易に配することができるとともに
横出用ロッドの錆付による作動不良を防止することがで
きるので射出成形品の欠肉不良索出q 荷としてその督
するところ嘴めて犬である。Now, in the present invention, each cavity of a movable mold for molding a large number of injection hole-shaped parts is provided with a movement hole that passes through W to the back side of the core mold. In addition to arranging an ejector plate that connects with the cough metal 7, the
'Tl between the movable mold and the ejector plate K (the leading part is inserted into the narimachi hole of the retractable mold and protrudes into the cavity, and the convex end has a flange part and a protruding part. A detection rod having a chamber and a unit body attached to the ejector plate are connected to each other, and the core unit is elastically loaded via a web spring at the base end of the detection loft, and further A lead wire was connected to the unit main body through a holder consisting of an insulating part (the exposed part and the pressurized part were housed, and the detection rod was connected to the pressurized part via a web spring). By killing the detection units arranged in layers and applying injection pressure to each cavity, the detection rods of each detection unit are actuated and brought into contact with the above-mentioned seal portion 1. Since the injection bite-shaped Sakuyokui-go and the ejector plate are configured to take out the signal and v that operate independently of the @Jika-Hong mold, it is easy to use to check the quality of the injection molded parts. In addition, the molded parts can be taken out at the same time, and the broken detection unit has a detection loft and lead wire attached to the main body of the detection unit. Since it has 4 teeth, it can be printed and made smaller, so it can be extremely easily placed in a mold for multiple cavities, and it also prevents malfunctions due to rust on the side rod. Because it is possible to detect defects in injection molded products, it is like a dog in its beak.
4、 ’ ”’4 11I] の 聞 隼 な
睨 d月叉面は本発明の一実施例を示し、¥1′闇は射
、出成形機の要部を示す略坏1図、第2図は検出用ユニ
ットの鵠断面引、第61刺(J) (W)は欠肉不良検
出装置の電気回vj来、第4契(イ)(ロ) ()S
(−)は作動沖明雫、鴫5図は従来例を示す断面図であ
る。4, '``'411I]'s Hayabusa
The d-moon cross section shows one embodiment of the present invention; (J) (W) is the electric turn vj of the defective underfill detection device, the fourth contract (a) (b) ()S
(-) is a sectional view showing a conventional example.
2・・・可動金型 3・・・・■宇金型4.4′・・
・キャビティー 5・・・PPJ@孔6・・・欠
肉不良検出装置 7,8・・・エジェクター板11・
・・検出用ユニット 12・・ユニッ ト本体2
つ・・・検出用ロフト 22・・・フランジ部23・
・・突 ン 部 24・・・ウェブスプリン
グ26・・・ホ ル ダ − 28・・・加 圧
部29 ・・ ′屹 些阿 部
30 ・・・ リ − ド 祠都出
碩 人 大和1′ヒ成工菜味式会社代 浬 人
弁理士 岡 1) 英 彦第2図
30/3、/!÷売、4
第 3 図工
第4
(イ 1
:。ン4’ W
1./1
第5図
01
手続補正書j本
昭和!2年−月2日
特許庁長官若杉(11大衆
1、事件の表示
昭和f7年 午X許 願第2りj−7P号3 補正をす
る者
事件との関係 特許出願人
4代理人
5、 補正命令の日付
6、 補正により増加する発明の数
8 補正の内容
次、・・−シ」ス前記裁のとおり
フ、 補正の対象
(1)明細苓の脣許餓求の範囲の欄
(2) 明細書の発明の詳細な説明の欄(3)明i賽
の図面の簡単な説明の欄
(4)図面
8、補正の内容
(1)「特許請求の範囲」の欄の記載を別紙のと2り補
正し2ます。2...Movable mold 3...■U-mold 4.4'...
・Cavity 5...PPJ@hole 6...Underfill defect detection device 7, 8...Ejector plate 11・
...Detection unit 12...Unit body 2
...Detection loft 22...Flange part 23.
... Protrusion part 24 ... Web spring 26 ... Holder - 28 ... Pressure
Part 29...'
30...Lead Shrine Out
Hito Yamato 1'hi Seiko Nami Shiki Company Representative Hito Hiroto
Patent Attorney Oka 1) Hidehiko Figure 2 30/3, /! ÷ Sales, 4 3rd Art 4th (A 1
:. 4' W 1. /1 Figure 5 01 Procedural amendment j Book Showa! Wakasugi, Commissioner of the Japan Patent Office (11 Publics 1, 1937, 1933, 1933, 1935, 1983, 2013), Commissioner of the Japan Patent Office, Wakasugi, January 2, 1983, 1935, No. 2, No. 2, J-7P No. 3, Person making the amendment, Relationship with the case, Patent Applicant, 4, Attorney, 5, Amendment. Date of order 6. Number of inventions increased by amendment 8. Contents of amendment: As per the above court, Subject of amendment (1) Field of scope of request for permission (2) Column for detailed explanation of the invention in the specification (3) Column for brief explanation of drawings for clarity (4) Drawing 8 and content of amendments (1) The description in the “Scope of Claims” column is attached to the attached sheet. 2 corrections and 2.
(2)明細省中第7頁第12行目ないし第13行目に[
・・ホルダー26には・・・内嵌されている−とある記
載を「・・・ホルダー26には感圧部35が組込脣れ、
この感圧部35は刃口圧部28および電極部29によυ
構まされている。」と補正します。(2) Ministry of Specifications, page 7, line 12 or line 13 [
...The holder 26 is fitted inside--The description reads, ``The holder 26 has a pressure sensitive part 35 built into it.
This pressure sensitive part 35 is υ
It is organized. ” and correct it.
(3)同第8頁第6行目ないし第4行目、第7行目に「
加圧部28およびt極部29」とある記載を「感圧部6
5」と補正します。(3) On page 8, lines 6 to 4, and line 7, “
``Pressure section 28 and t-pole section 29'' was replaced with ``pressure sensitive section 6''.
5” and correct it.
(4) 同第8頁第12行目、概17頁第2行目。(4) Page 8, line 12, approximately page 17, line 2.
第6行目に「加圧部りとある記載を「感圧部」と補正し
ます。In the 6th line, the description "Pressure part" will be corrected to "Pressure sensitive part."
(5) 1町’I頁第5行目にV加圧部21jとある
記載を「感圧部35jと視正します。(5) On the 5th line of page 1 of 1 Town, the entry ``V pressure section 21j'' has been corrected to ``pressure sensitive section 35j.''
(6)同第14頁第19行目ないし第20行目に「を極
部29および加圧部28」とあ6記載を「感圧部35」
と補正し貰す。(6) On page 14, lines 19 and 20, "the pole part 29 and the pressure part 28" and 6 are replaced with "the pressure sensitive part 35".
I am corrected.
(7) 同第16頁第8行目と第9行目との間に次の
説明文を力乙人してず。(7) The following explanatory text was added between lines 8 and 9 of page 16.
「でた、本実施例では感圧部ろ5を加圧導電ゴムよりな
る加圧部28およびリード線60を導電状態に接電極部
29により構成して例示したが1、導電性のはね鋼を略
U字状に形成した感圧部であってもよい。でた、セラミ
ックあるいは歪ゲージ等の感圧素子により感圧部を構成
してもよい、」(8)同第16頁第19行目、第17頁
第6行目に「・・・ウェブスプリングを介して・・」と
ある記載を[・・・ウェブスプリング等の反発手段を介
して・・−・と補正します。``In this embodiment, the pressure-sensitive filter 5 is constructed with a pressure section 28 made of pressurized conductive rubber and a grounded electrode section 29 with the lead wire 60 in a conductive state. The pressure sensitive part may be made of steel formed into a substantially U-shape.The pressure sensitive part may also be composed of a pressure sensitive element such as a ceramic or a strain gauge.'' (8) Same page 16 In line 19, page 17, line 6, the statement ``...via a web spring...'' has been corrected to ``...via a repulsive means such as a web spring...''.
(9゛〕 同第17頁第1行目ないし第2行目に「・
・・接続した・・納めかつ・・・」とを)る記載を・1
“・接電したに圧部を・納めかつ・・]と祖正し了す。(9゛) In the 1st or 2nd line of page 17, “・
・・Connected・・Payment・・
“・Place the pressure part in the electrically connected place.”
OC踵」第17頁W−′lミ7行目にTt板云りおよび
力[圧部」とある記載を1感圧部」と補正します。On page 17 of ``OC Heel,'' page 17, line 7 of W-'l, the text ``Tt plate'' and the description ``force [pressure part''] will be corrected to ``1 pressure sensitive part''.
(9) 同第18頁第16行目の符号説明に引続き、次
の符号説明を加入します。(9) Following the code explanation on page 18, line 16, the following code explanation is added.
「65−・感圧部」
■ 願書に添付した[ンイ面中第2図を別紙のとおり補
正いたします。“65-・Pressure Sensing Part” ■ Figure 2 in the attached page of the application form has been corrected as shown in the attached sheet.
特許請求の範囲
多数個の射出成形部品を成形する金型の各キャビティー
に、該金型の背面側へ貫通する摺動孔を設け、前記金&
の背面側には該金型と連繋するエジェクター板を配設す
るとともに、前記金型とエジェクター板との間には先端
部が前記ヶ型の摺動孔に挿通≧牝て前記キャビテ、−丙
に突出し、基端部にフランジ部と突起部とを有する検出
用ロッドと前記ニジエフター頓に取付(けられるユニッ
)・本体とて、らなり、該ユニット本体に(=前記検出
用ロッドの基七部をウェブスフ1ノング酊じ反発手亀亡
介して外鉄するとともに、壬らに、ユニット本体に11
絶縁部材からなるホルダーケ介してリード級を接続した
感圧部を納めかつ前記感圧部に対し前記検出ロッドをウ
ェブスプリング5oLn±−檜を介して接離可能に設り
た恨出用ユニットを配設して、前記各キャビティーへの
射高圧により前記各検出用ユニットの検出用ロッドが作
動して前記感圧部に当接することで充填の確認信号と前
記エジェクター板を前記金型とは狂立的に作動する係号
とを取出す構成としたことを特徴とする射出成形品の欠
閃不良検出装置。Claims Each cavity of a mold for molding a large number of injection molded parts is provided with a sliding hole penetrating to the back side of the mold,
An ejector plate connected to the mold is disposed on the back side of the mold, and between the mold and the ejector plate, the distal end is inserted into the sliding hole of the mold, and the cavity is inserted into the cavity. A detection rod that protrudes from the base end and has a flange portion and a protrusion at the base end and a unit that is attached to the Nijefter and the main body are rounded and attached to the unit body (= the base of the detection rod At the same time, I put the part on the web through 1 non-drunken repulsion and put it on the outside, and also put 11 on the unit body.
A pressure sensing unit is disposed in which a pressure sensitive part is connected to a lead class through a holder made of an insulating material, and the detection rod is movable toward and away from the pressure sensitive part via a web spring 5oLn±-cypress. The detection rod of each detection unit is actuated by the high pressure injected into each cavity and comes into contact with the pressure sensitive part, thereby sending a filling confirmation signal and moving the ejector plate out of alignment with the mold. A defective flash detection device for injection molded products, characterized in that it is configured to take out a locking code that operates vertically.
第2図Figure 2
Claims (1)
に、咳4型の背面側へ貫通する4j動孔を投け、前記金
型の背面側には銭金型と連臀するエジェクター板を配役
するとともに、前記金型とエジェクター板との間には先
端部が前把今型の慴動孔[JIT+7勇されて′@記キ
ャビティー内に突出し、基端部にはフランジ部と突9部
とを有する検出用ロッドト′@紀エジェクター板に取付
けられるユニット本体とからなシ、翔ユニット本体には
前記検出用ロッドの基端部をウェブスプリングを介して
弾装するとともに、さらに、ユニ7ト本体には絶縁部材
からなるホルダーを介してリード線を接続した電嘔部と
引圧孔とを納めかつ@記1ル圧部に対し前記構出ロッド
をウェブスプリングを介して接離可能に設けた検出用ユ
ニットを配設して、前記各キャビティーへの射出圧によ
シ前記各検出用ユニ、)の検出用ロッドが作動して前記
加圧部に当接することで充填の確認信号と前記エジェク
ター板を前記金型とは独立的に作動する信号とを取出す
構成としたことを特徴とする射出成形品の欠肉不良検出
装置。A 4J movement hole penetrating to the back side of the mold 4 is inserted into each cavity of the mold for molding a large number of injection molded parts, and an ejector plate connected to the coin mold is installed on the back side of the mold. At the same time, between the mold and the ejector plate, there is a sliding hole [JIT+7] with the tip end shaped like a front grip, which protrudes into the cavity, and a flange part and a protrusion at the base end. The detection rod has 9 parts and a unit body attached to the ejector plate, and the base end of the detection rod is elastically mounted on the unit body via a web spring. 7. The main body houses an electrical part to which a lead wire is connected via a holder made of an insulating material, and a suction hole, and the above-mentioned rod can be moved into and out of contact with the pressure part via a web spring. A detection unit provided in the above-mentioned cavity is disposed, and the detection rod of each detection unit () is actuated by the injection pressure into each cavity and comes into contact with the pressurizing part to confirm filling. A device for detecting underfill defects in injection molded products, characterized in that the device is configured to extract a signal and a signal that operates the ejector plate independently of the mold.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7959582A JPS58197031A (en) | 1982-05-11 | 1982-05-11 | Detector for defective thickness of injection molding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7959582A JPS58197031A (en) | 1982-05-11 | 1982-05-11 | Detector for defective thickness of injection molding |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58197031A true JPS58197031A (en) | 1983-11-16 |
JPS6110292B2 JPS6110292B2 (en) | 1986-03-28 |
Family
ID=13694345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7959582A Granted JPS58197031A (en) | 1982-05-11 | 1982-05-11 | Detector for defective thickness of injection molding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58197031A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015133645A1 (en) * | 2014-03-07 | 2015-09-11 | オリンパス株式会社 | Molding die and manufacturing method using molding die |
EP2516129A4 (en) * | 2009-12-23 | 2015-11-04 | Rjg Inc | A new method for installing indirect and direct mold pressure, temperature, and flow front detection sensors without machining the mold |
-
1982
- 1982-05-11 JP JP7959582A patent/JPS58197031A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2516129A4 (en) * | 2009-12-23 | 2015-11-04 | Rjg Inc | A new method for installing indirect and direct mold pressure, temperature, and flow front detection sensors without machining the mold |
WO2015133645A1 (en) * | 2014-03-07 | 2015-09-11 | オリンパス株式会社 | Molding die and manufacturing method using molding die |
CN106103038A (en) * | 2014-03-07 | 2016-11-09 | 奥林巴斯株式会社 | Mould and the manufacture method using mould |
JPWO2015133645A1 (en) * | 2014-03-07 | 2017-04-06 | オリンパス株式会社 | Molding die and manufacturing method using the molding die |
CN106103038B (en) * | 2014-03-07 | 2018-01-23 | 奥林巴斯株式会社 | Mould and the manufacture method using mould |
Also Published As
Publication number | Publication date |
---|---|
JPS6110292B2 (en) | 1986-03-28 |
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