JPH10264161A - Mold marker - Google Patents

Mold marker

Info

Publication number
JPH10264161A
JPH10264161A JP9075209A JP7520997A JPH10264161A JP H10264161 A JPH10264161 A JP H10264161A JP 9075209 A JP9075209 A JP 9075209A JP 7520997 A JP7520997 A JP 7520997A JP H10264161 A JPH10264161 A JP H10264161A
Authority
JP
Japan
Prior art keywords
inner diameter
outer ring
fitted
fixed outer
mold
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.)
Withdrawn
Application number
JP9075209A
Other languages
Japanese (ja)
Inventor
Takeshi Shiba
武志 芝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOKYO YAMATO KIKAI KIGU KK
Original Assignee
TOKYO YAMATO KIKAI KIGU KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TOKYO YAMATO KIKAI KIGU KK filed Critical TOKYO YAMATO KIKAI KIGU KK
Priority to JP9075209A priority Critical patent/JPH10264161A/en
Publication of JPH10264161A publication Critical patent/JPH10264161A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/42Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • B29C33/424Moulding surfaces provided with means for marking or patterning
    • B29C33/428For altering indicia, e.g. data, numbers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To reduce the temperature effect generated by molding heat, avoid the deterioration and defective rotation of a rotatable inner dowel generated by the high temperature, simplify the structure of the rotatable inner dowel and carry out simply the replacement work and the manufacturing work at a molding site. SOLUTION: A cylindrical body with a large inner diameter section 15 and a small inner diameter section 14 is provided with a fitting fixed outer ring section 2 with a dial 3 formed on the end face on the side on which the small inner diameter section 14 is opened, a cushion ring 17 as an annular body having the inner diameter almost equal to the small diameter section 14 and the outer diameter to be fitted on the large inner diameter section 15 and also having at least one opening 18 in which a steel ball 10 is embedded through a spring 9, and a rotatable inner dowel 5 having the constitution in which a columnar base 11 to be fitted on the large inner diameter section 15 and a shaft section 13 protruded from one end face of the base are provided and position determining holes 12 are annularly formed and disposed on the end face of the base 11 and an arrow mark panel 6 is formed on the end face of the shaft section 13.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、プラスチック成形
品表面に製造ロット番号等の刻印を施すための金型部品
として、主にプラスチック金型分野に用いられる金型マ
ーカーに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold marker mainly used in the field of plastic molds as a mold part for imprinting a production lot number or the like on the surface of a plastic molded product.

【0002】[0002]

【従来の技術】従来、プラスチック成形品表面に製造ロ
ット番号等の刻印を施す方法として、成型用金型の金型
面に、超硬彫刻刀やポンチ等を用いて所望の文字・記号
を刻印する方法が知られている。しかしながら、この方
法は、刻印を変更しようとする度に金型面の当該部分を
平坦に戻し、別の文字・記号を再刻印しなければならな
いために修正・刻印に特殊技能と長時間とを要し、その
上、金型面を傷つけやすいという欠点があった。
2. Description of the Related Art Conventionally, as a method of imprinting a production lot number or the like on the surface of a plastic molded product, desired characters and symbols are engraved on a die surface of a molding die using a carbide chisel or a punch. There are known ways to do this. However, this method requires a special skill and a long time for correction / engraving because the part of the mold surface must be flattened every time the engraving is to be changed and another character / symbol must be engraved again. In addition, there is a disadvantage that the mold surface is easily damaged.

【0003】そこで、このような欠点を克服すべく、刻
印を容易に変更可能な刻印専用の部品を、金型本体とは
別個に作製し、それを適宜金型に取り付けて用いる方法
が案出された。このような方法に用いられる刻印専用の
部品は、一般に金型マーカーあるいは金型マーキング装
置などと称され、その代表的かつ機能的に最も優れたも
のとして、図5(分解斜視図)及び図6(断面図)に示
すような構造のものが知られている。
In order to overcome such a drawback, a method has been devised in which a dedicated stamping part whose stamp can be easily changed is manufactured separately from the mold body, and is used by appropriately attaching it to the mold. Was done. Parts dedicated to engraving used in such a method are generally referred to as mold markers or mold marking devices, and the most representative and functionally superior parts are shown in FIGS. 5 (exploded perspective view) and FIG. A structure as shown in (cross-sectional view) is known.

【0004】この金型マーカー31は、筒状の嵌合固定
外輪部32と、その内部に回転可能に嵌装される回転自
在中コマ35とから構成される。回転自在中コマ35の
上端面には矢印37が刻まれた矢印盤36が形成されて
いる。また、下部外周面の一部に孔48が形成され、こ
の孔48にスプリング39を介して鋼球40が埋め込ま
れている。更に、回転自在中コマ35の下端面には、通
常、キー溝38が形成されており、マイナスドライバー
等を用いることによって、回転自在中コマ35を嵌合固
定外輪部32に対して容易に回転させることができるよ
うにされている。
[0004] The mold marker 31 comprises a cylindrical fitting fixed outer ring portion 32 and a rotatable middle piece 35 rotatably fitted therein. An arrow board 36 on which an arrow 37 is formed is formed on an upper end surface of the rotatable middle piece 35. A hole 48 is formed in a part of the lower outer peripheral surface, and a steel ball 40 is embedded in the hole 48 via a spring 39. Further, a key groove 38 is usually formed on the lower end surface of the rotatable middle piece 35, and the rotatable middle piece 35 can be easily rotated with respect to the fitting fixed outer ring portion 32 by using a flathead screwdriver or the like. It is made to be able to.

【0005】一方、嵌合固定外輪部32は、その上端面
に、環状に配列された所定の配列文字34が刻まれたダ
イヤル文字盤33が形成されている。また、下部内周面
には、回転自在中コマ35に埋め込まれた鋼球40の一
部が入り込める程度の深さを有する位置確定穴42が、
ダイヤル文字盤32の配列文字34と対応するように環
状に配列して形成されている。
[0005] On the other hand, the fitting fixed outer ring portion 32 has a dial dial 33 formed with a predetermined arrangement of characters 34 arranged in a ring on its upper end surface. Further, on the lower inner peripheral surface, a position determination hole 42 having a depth such that a part of the steel ball 40 embedded in the rotatable middle piece 35 can enter,
It is arranged in a ring shape so as to correspond to the arrangement characters 34 of the dial face 32.

【0006】そして、回転自在中コマ35の矢印盤36
に刻まれた矢印37が、嵌合固定外輪部32のダイヤル
文字盤33に刻まれた配列文字34のうちの所定の文字
を指示するまで、回転自在中コマ35を嵌合固定外輪部
32に対して回転させると、スプリング39の押力によ
り鋼球40の一部が位置確定穴42に安定的に納まっ
て、少々のショックでは矢印盤が回転しないようにな
り、所定の刻印が安定的に得られる。
The arrow board 36 of the rotatable middle piece 35
The rotatable middle piece 35 is moved to the fixed outer ring part 32 until the arrow 37 engraved on the dial indicates a predetermined character among the arrayed characters 34 engraved on the dial face 33 of the fixed outer ring part 32. When rotated, a part of the steel ball 40 is stably stored in the position determination hole 42 by the pressing force of the spring 39, and the arrowhead does not rotate with a slight shock, and the predetermined marking is stably performed. can get.

【0007】このように、回転自在中コマ35を回転さ
せて、配列文字34のうちから、矢印37の指示する文
字を変更することによって、特殊技能や長時間を要する
ことなく刻印を変更することができる。なお、このよう
な金型マーカーは、金型コアー(金型本体)の所定位置
に設けられた取り付け孔に、金型成形面(キャビティー
面)の側から打ち嵌め等により取り付けて使用される。
As described above, by rotating the rotatable frame 35 and changing the character indicated by the arrow 37 from the arrayed characters 34, the engraving can be changed without requiring special skills or a long time. Can be. It should be noted that such a mold marker is used by being attached to a mounting hole provided at a predetermined position of a mold core (mold body) from the side of the mold molding surface (cavity surface) by, for example, being fitted. .

【0008】[0008]

【発明が解決しようとする課題】ところで、上記のよう
な金型マーカーを金型に取り付けて使用した場合、成形
熱がスプリングや鋼球まで直接影響して嵌合固定外輪部
と回転自在中コマとの間隙の変化が激しく、その回転の
円滑性が損なわれやすいという問題があった。また、ス
プリングや鋼球の嵌め込みが困難で、回転自在中コマの
取り替えが不便であった。更に、回転自在中コマに鋼球
を埋め込む構造としたため、回転自在中コマを成形現場
で簡易に作製することができなかった。
When the above-described mold marker is used by attaching it to a mold, the molding heat directly affects the spring and the steel ball, and the rotatable frame is fixed to the fitted fixed outer ring portion. There is a problem that the gap between the rotation and the rotation changes drastically, and the smoothness of the rotation is easily impaired. In addition, it is difficult to fit a spring or a steel ball, and it is inconvenient to replace the top during rotation. Further, since the steel ball is embedded in the rotatable top, the rotatable top cannot be easily manufactured at the molding site.

【0009】本発明は、このような従来の問題点に鑑み
てなされたものであり、その主な目的は、スプリングや
鋼球近辺への成形熱による温度影響が少なく、数万回以
上のショットによる温度・圧力の昇降サイクルにも回転
自在中コマの回転の円滑性が損なわれず、また、回転自
在中コマの構造が単純で、取り替え作業や成形現場での
作製が簡易になしうる金型マーカーを提供することにあ
る。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its main object to reduce the influence of temperature on the vicinity of a spring or a steel ball due to molding heat, and to achieve tens of thousands of shots or more. Mold marker that does not impair the smoothness of rotation of the rotatable top during the temperature / pressure rise / fall cycle due to the above, and the structure of the rotatable top is simple, making it easy to perform replacement work and production at the molding site Is to provide.

【0010】[0010]

【課題を解決するための手段】本発明によれば、(a)所
定の内径を有する大内径部と、当該大内径部より小さな
内径を有する小内径部とを持った筒状体であって、当該
大内径部と小内径部とはその内部が段差を持ってつなが
るとともに、各々筒状体の反対側の端面に開口し、小内
径部が開口する側の筒状体端面に、環状に配列された所
定の配列文字が刻まれたダイヤル文字盤が形成された嵌
合固定外輪部、(b)前記嵌合固定外輪部の小内径部と略
同等の内径と、前記嵌合固定外輪部の大内径部に嵌装可
能な外径とを有する環状体であって、その内径と大径と
の間の部位に、少なくとも1つの孔を有し、当該孔にス
プリングを介して鋼球が埋め込まれた緩衝リング、及び
(c)前記嵌合固定外輪部の大内径部に嵌装可能な径を有
する円柱状の台座と、当該台座の一端面から当該台座の
軸方向に突出した、前記嵌合固定外輪部の小内径部に嵌
装可能な径を有する円柱状の軸部とを有し、当該軸部が
突出する側の台座の端面に、前記緩衝リングに埋め込ま
れた鋼球の一部が入り込める程度の深さを有する位置確
定穴が、前記嵌合固定外輪部のダイヤル文字盤の配列文
字と対応するように環状に配列して形成されるととも
に、前記軸部の端面に、前記ダイヤル文字盤の配列文字
の特定箇所を指示するための矢印が刻まれた矢印盤が形
成された回転自在中コマ、からなり、(d)前記緩衝リン
グに、前記回転自在中コマの軸部を挿通し、これらを前
記嵌合固定外輪部に嵌装してなることを特徴とする金型
マーカー、が提供される。
According to the present invention, there is provided (a) a cylindrical body having a large internal diameter portion having a predetermined internal diameter and a small internal diameter portion having an internal diameter smaller than the large internal diameter portion. The large-diameter portion and the small-diameter portion are connected to each other with a step inside, and each is opened at the end face on the opposite side of the tubular body. A fixed outer ring portion formed with a dial dial engraved with a predetermined array of arranged characters, (b) an inner diameter substantially equal to the small inner diameter portion of the fixed outer ring portion, and the fixed outer ring portion An annular body having an outer diameter capable of being fitted to the large inner diameter portion, and having at least one hole in a portion between the inner diameter and the large diameter, in which a steel ball is inserted via a spring. Embedded buffer ring, and
(c) a cylindrical pedestal having a diameter that can be fitted to the large inner diameter portion of the fitting fixed outer ring portion, and a small size of the fitting fixed outer ring portion protruding from one end surface of the pedestal in the axial direction of the pedestal. A cylindrical shaft portion having a diameter that can be fitted to the inner diameter portion, the depth being such that a part of the steel ball embedded in the buffer ring can enter the end surface of the pedestal on the side from which the shaft portion protrudes. A position determining hole having a length is formed by being arranged annularly so as to correspond to an arrangement character of the dial dial of the fitting fixed outer ring portion, and an arrangement character of the dial dial is formed on an end face of the shaft portion. (D) a shaft portion of the rotatable middle piece is inserted into the buffer ring, and A mold marker characterized by being fitted to the fitted fixed outer ring portion; You.

【0011】[0011]

【発明の実施の形態】図1〜図3は、それぞれ本発明に
係る金型マーカーの一例を示す分解斜視図、断面図、平
面図である。図のように本発明の金型マーカー1は、嵌
合固定外輪部2、緩衝リング17及び回転自在中コマ5
から構成される。
1 to 3 are an exploded perspective view, a sectional view and a plan view, respectively, showing an example of a mold marker according to the present invention. As shown in the figure, the mold marker 1 of the present invention comprises a fitting fixed outer ring portion 2, a buffer ring 17, and a rotatable middle piece 5.
Consists of

【0012】嵌合固定外輪部2は、所定の内径を有する
大内径部15と、大内径部15より小さな内径を有する
小内径部14とを持った筒状体である。この大内径部1
5と小内径部14とは、その内部が段差16を持ってつ
ながるとともに、各々筒状体の反対側の端面に開口して
いる。そして、小内径部14が開口する側の筒状体端面
には、環状に配列された所定の配列文字4が刻まれたダ
イヤル文字盤3が形成されている。
The fitted and fixed outer ring portion 2 is a cylindrical body having a large inside diameter portion 15 having a predetermined inside diameter and a small inside diameter portion 14 having an inside diameter smaller than the large inside diameter portion 15. This large inner diameter part 1
The inside of the cylindrical body 5 and the small inner diameter portion 14 are connected to each other with a step 16, and each is open to the opposite end face of the cylindrical body. The dial face 3 on which the predetermined arrangement characters 4 arranged in a ring are engraved is formed on the end face of the cylindrical body on the side where the small inner diameter portion 14 opens.

【0013】緩衝リング17は、嵌合固定外輪部2の小
内径部14と略同等の内径と、嵌合固定外輪部2の大内
径部15に嵌装可能な外径とを有する環状体である。そ
してその内径と大径との間の部位に、少なくとも1つの
孔18を有し、この孔18にスプリング9を介して鋼球
10が埋め込まれる。
The buffer ring 17 is an annular body having an inner diameter substantially equal to that of the small inner diameter portion 14 of the fitted and fixed outer ring portion 2 and an outer diameter that can be fitted to the large inner diameter portion 15 of the fitted and fixed outer ring portion 2. is there. At least one hole 18 is provided between the inner diameter and the larger diameter, and the steel ball 10 is embedded in the hole 18 via the spring 9.

【0014】回転自在中コマ5は、嵌合固定外輪部2の
大内径部15に嵌装可能な径を有する円柱状の台座11
と、この台座11の一端面から台座11の軸方向に突出
した円柱状の軸部13とを有する。軸部13は、嵌合固
定外輪部2の小内径部14に嵌装可能な径を有する。軸
部13が突出する側の台座11の端面には、緩衝リング
17に埋め込まれた鋼球10の一部が入り込める程度の
深さを有する位置確定穴12が、嵌合固定外輪部2のダ
イヤル文字盤3の配列文字4と対応するように環状に配
列して形成されている。また、軸部5の端面には、ダイ
ヤル文字盤3の配列文字4の特定箇所を指示するための
矢印7が刻まれた矢印盤6が形成されている。更に、台
座11には、先述の従来の金型マーカーと同様にキー溝
8を設け、マイナスドライバー等で回転自在中コマ5を
容易に回転できるようにすることが好ましい。
The rotatable middle piece 5 has a cylindrical pedestal 11 having a diameter that can be fitted to the large inner diameter portion 15 of the fitted and fixed outer ring portion 2.
And a cylindrical shaft portion 13 protruding from one end surface of the pedestal 11 in the axial direction of the pedestal 11. The shaft portion 13 has a diameter that can be fitted to the small inner diameter portion 14 of the fitted fixed outer ring portion 2. A position determining hole 12 having a depth such that a part of the steel ball 10 embedded in the buffer ring 17 can be inserted into the end surface of the pedestal 11 on the side where the shaft portion 13 protrudes, It is arranged in a ring so as to correspond to the arrangement characters 4 of the dial 3. On the end face of the shaft 5, there is formed an arrow board 6 engraved with an arrow 7 for indicating a specific position of the arrayed characters 4 of the dial face 3. Further, it is preferable that the pedestal 11 be provided with a key groove 8 similarly to the above-described conventional die marker so that the top 5 can be easily rotated while being freely rotatable by a flathead screwdriver or the like.

【0015】本発明の金型マーカーは、このような部品
から構成され、緩衝リング17に、回転自在中コマ5の
軸部13を挿通し、これらを嵌合固定外輪部2に嵌装し
て組み合わされる。この金型マーカーにおいて、刻印の
変更、すなわち配列文字4のうちから矢印7が指示する
文字を変更するには、マイナスドライバー等をキー溝8
に差し込んで、隣り合う位置確定穴12間の山越え抵抗
とスプリング弾性に抗するだけの力でもって、回転自在
中コマ5を所定位置まで回転させればよい。
The mold marker of the present invention is composed of such parts, and the shaft 13 of the rotatable top 5 is inserted into the buffer ring 17 and fitted to the fitting fixed outer ring 2. Be combined. In this mold marker, in order to change the engraving, that is, to change the character indicated by the arrow 7 out of the arrayed characters 4, use a flathead screwdriver or the like in the keyway 8.
Then, the rotatable top 5 may be rotated to a predetermined position with only a resistance over the hill between the adjacent position determining holes 12 and a force against the spring elasticity.

【0016】回転自在中コマ5の矢印盤6に刻まれた矢
印7が、嵌合固定外輪部2のダイヤル文字盤3に刻まれ
た配列文字4のうちの所定の文字を指示するまで、回転
自在中コマ5を嵌合固定外輪部2に対して回転させる
と、スプリング9の押力により鋼球10の一部が位置確
定穴12に安定的に納まって、少々のショックでは矢印
盤が回転しないようになり、所定の刻印が安定的に得ら
れる。このように、本発明の金型マーカーにおいても、
従来のものと同様に、特殊技能や長時間を要するなく刻
印を容易に変更することができるが、更に本発明では、
上記のような構造を採用することにより次のような作用
効果が得られる。
Until the arrow 7 engraved on the arrow plate 6 of the rotatable top 5 indicates a predetermined character of the arrayed characters 4 engraved on the dial dial 3 of the fitted and fixed outer ring 2, the rotation is continued. When the movable top 5 is rotated with respect to the fitted and fixed outer ring portion 2, a part of the steel ball 10 is stably placed in the position determination hole 12 by the pressing force of the spring 9, and the arrow board rotates with a slight shock. The predetermined marking is stably obtained. Thus, in the mold marker of the present invention,
Like the conventional one, the engraving can be easily changed without requiring special skills or a long time.
The following effects can be obtained by adopting the above structure.

【0017】まず、回転自在中コマ5、嵌合固定外輪部
2の何れからも独立した緩衝リング17を採用し、これ
にスプリング9及び鋼球10を埋め込む構造としたこと
と、緩衝リング17自体の断熱(熱緩衝)機能により、
従来の金型マーカーでは、嵌合固定外輪部が、続いて回
転自在中コマが、更に用いられるスプリングや鋼球が直
熱されるのに対して、本発明ではそのような温度影響が
少なく、高温による劣化や回転自在中コマが回転不良に
陥ることが避けられる。そして、このような成形熱によ
る温度影響の少なさから、本発明の金型マーカーは、熱
伝導の激しいアルミ型成形の分野にも適用し得る。
First, a buffer ring 17 independent of both the rotatable middle piece 5 and the fitting fixed outer ring portion 2 is employed, and the spring 9 and the steel ball 10 are embedded therein. The heat insulation (heat buffer) function of
In the conventional mold marker, the fitting fixed outer ring portion, then the rotatable middle piece, and the spring or steel ball used further are directly heated, whereas in the present invention, such temperature influence is small, and the temperature is high. It is possible to prevent the top from deteriorating and the rotation of the top during rotation. And since the influence of the temperature due to such molding heat is small, the mold marker of the present invention can be applied to the field of aluminum molding where heat conduction is severe.

【0018】また、上記のようにスプリング9及び鋼球
10を、回転自在中コマ5ではなく、安価かつ容易に作
製可能な緩衝リング17に埋め込むようにしたことによ
って、回転自在中コマ5の構造が単純となり、回転自在
中コマ5の取り替えや作製そのものも簡単となるため、
これらは成形現場での簡易作業として遂行できるように
なる。更に、スプリングや鋼球近辺への温度影響が少な
いことと、緩衝リングの易製作性との相乗効果で、極め
て小型(例えばダイヤル文字盤の外径が6mm以下)の
金型マーカーを作製することも可能となる。
Further, as described above, the spring 9 and the steel ball 10 are embedded not in the rotatable middle piece 5 but in the buffer ring 17 which can be easily manufactured at a low cost. Is simple, and the replacement and production of the rotatable top 5 are also simple.
These can be performed as simple operations at the molding site. Furthermore, due to the synergistic effect of the low temperature influence on the spring and the vicinity of the steel ball and the ease of manufacture of the buffer ring, an extremely small mold marker (for example, the outer diameter of the dial face is 6 mm or less) is manufactured. Is also possible.

【0019】本発明の金型マーカーは、上述した従来の
ものと同様に、金型に設けられた所定の取り付け穴に取
り付けて使用される。図4は、この取り付け状態の一例
を示す断面図である。図に示すように、金型マーカー1
は金型コアー(金型本体)19の所定位置に設けられた
取り付け孔22に、金型成形面(キャビティー面)の側
から打ち嵌め等により取り付けて使用される。金型マー
カー1は、金型コアー19と金型基盤20との間に挾持
されたマーカー止め板21により、ダイヤル文字盤の表
面が金型成形面とほぼ面一になるような位置にて金型裏
面側から支持される。
The mold marker of the present invention is used by being attached to a predetermined attachment hole provided in the mold, similarly to the above-described conventional one. FIG. 4 is a cross-sectional view showing an example of this mounting state. As shown in the figure, the mold marker 1
Is used by being fitted into a mounting hole 22 provided at a predetermined position of a mold core (mold body) 19 from the side of the mold forming surface (cavity surface) by, for example, press-fitting. The die marker 1 is positioned at a position such that the surface of the dial face is substantially flush with the die molding surface by the marker stopper plate 21 sandwiched between the die core 19 and the die base 20. It is supported from the mold back side.

【0020】次に、本発明の金型マーカーにおいて特徴
的に採用される緩衝リングについて詳しく説明する。緩
衝リング17は、その外径が嵌合固定外輪部2の大内径
部15に嵌装可能な寸法であり、通常は嵌合固定外輪部
2の大内径部15の内径と同じか、それより若干小さめ
の寸法にすればよい。具体的な外径寸法は、金型マーカ
ーの大きさによるが、5〜30mm程度がよい。また、
緩衝リング17の内径は、嵌合固定外輪部2の小内径部
14の内径と略同等とし、その具体的な寸法は、やはり
金型マーカーの大きさによるが、4〜15mm程度がよ
い。
Next, the buffer ring characteristically employed in the mold marker of the present invention will be described in detail. The buffer ring 17 has such an outer diameter that it can be fitted to the large inner diameter portion 15 of the fixed outer ring portion 2, and is usually equal to or larger than the inner diameter of the large inner diameter portion 15 of the fixed outer ring portion 2. It may be slightly smaller. The specific outer diameter dimension depends on the size of the mold marker, but is preferably about 5 to 30 mm. Also,
The inside diameter of the buffer ring 17 is substantially equal to the inside diameter of the small inside diameter portion 14 of the fitted fixed outer ring portion 2, and its specific size is preferably about 4 to 15 mm, though it also depends on the size of the mold marker.

【0021】緩衝リング17の厚さは、上述のようにし
て金型マーカーを金型に取り付けたときに、最外表面
(キャビティー面)において嵌合固定外輪部2のダイヤ
ル文字盤3と回転自在中コマ5の矢印盤6とが面一にな
るように調整された厚さであればよい。具体的な厚さと
しては2〜10mm程度が好ましい。緩衝リング17に
形成される孔18の径は、緩衝リング17の外径と内径
との差の1/3〜1/2程度が好ましい。
The thickness of the buffer ring 17 is determined by rotating the dial dial 3 of the fitted and fixed outer ring portion 2 on the outermost surface (cavity surface) when the die marker is attached to the die as described above. Any thickness may be used as long as the thickness is adjusted so that the free middle piece 5 and the arrow board 6 are flush with each other. The specific thickness is preferably about 2 to 10 mm. The diameter of the hole 18 formed in the buffer ring 17 is preferably about 1 / to の of the difference between the outer diameter and the inner diameter of the buffer ring 17.

【0022】また、孔18の深さは、緩衝リング17の
厚さの1/3〜1/1(すなわち貫通孔)とするのが好ま
しい。孔18を貫通孔とする場合は、図2のようにスプ
リング9の一端が嵌合固定外輪部2の段差部16に接触
し、一方、底付き孔とする場合は、スプリングの一端が
当該孔の底部と接触することになるが、スプリングへの
伝熱を緩和する観点からは後者の方が望ましい。孔18
の数は、複数でもよいが通常は1つでよい。孔18の形
成位置は、孔18に埋め込まれた鋼球10の一部が回転
自在中コマ5の位置確定穴12に安定的に納まることが
できるように、これら位置確定穴12の列環に対応した
円周上であって、緩衝リング17の内径と外径のほぼ中
間の位置が好ましい。
The depth of the hole 18 is preferably 1/3 to 1/1 of the thickness of the buffer ring 17 (ie, a through hole). When the hole 18 is a through hole, one end of the spring 9 contacts the step 16 of the fitting and fixing outer ring portion 2 as shown in FIG. , But the latter is more preferable from the viewpoint of reducing the heat transfer to the spring. Hole 18
May be plural, but usually one. The formation position of the hole 18 is set in a row ring of the position determination holes 12 so that a part of the steel ball 10 embedded in the hole 18 can be stably accommodated in the position determination hole 12 of the top 5 while being rotatable. A position on the corresponding circumference and substantially intermediate between the inner diameter and the outer diameter of the buffer ring 17 is preferable.

【0023】緩衝リング17の材質は、特に限定される
ものではなく、例えばS45Cなどが好適に使用でき
る。スプリング9としては例えば耐熱スプリングが、ま
た、鋼球10の材質としては例えばSUJ2で焼入(表
面硬度)がHRC60゜のものなどが好適に使用でき
る。なお、特に断熱性能を高めたい場合には、緩衝リン
グ本体にセラミックス等の断熱材質を用い、更に孔数を
複数とし、バネ定数の高いスプリングを用いるのが好ま
しい。
The material of the buffer ring 17 is not particularly limited, and for example, S45C can be suitably used. As the spring 9, for example, a heat-resistant spring can be suitably used, and as the material of the steel ball 10, for example, one having SUJ2 and quenching (surface hardness) of HRC60 ° can be suitably used. In particular, when it is desired to enhance the heat insulating performance, it is preferable to use a heat insulating material such as ceramics for the buffer ring body, use a plurality of holes, and use a spring having a high spring constant.

【0024】[0024]

【実施例】以下、本発明を実施例に基づいて更に詳細に
説明するが、本発明はこれらの実施例に限定されるもの
ではない。
EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.

【0025】[実施例]上述した図1〜図3に示す本発
明の金型マーカーを金型に取り付けて、射出成形を実施
した。使用した金型マーカーの詳細、成形条件、実施結
果等は下記のとおりであった。
[Embodiment] The mold marker of the present invention shown in FIGS. 1 to 3 was attached to a mold and injection molding was performed. Details of the used mold markers, molding conditions, results of the execution, and the like were as follows.

【0026】(1)金型マーカー ・嵌合固定外輪部 材質:SUS420J2、表面は硬度HRC45゜に焼
き入れ。 配列文字:文字の刻印の深さは3mm。文字線幅は2.
0mm。 ダイヤル文字盤:外径10mm。内径5.0〜5.02
mm。 ・緩衝リング 材質:S45C。 内径:5.0mm。 厚さ:5mm。 スプリング:耐熱スプリング。 鋼球:2φmm、ステンレスSUJ2、HRC60゜。 ・回転自在中コマ 材質:嵌合固定外輪部と同じ。 軸部外径:4.97〜4.99mm。
(1) Die marker • Fitting fixed outer ring part Material: SUS420J2, surface quenched to hardness HRC 45 °. Arranged characters: The depth of the engraved characters is 3 mm. Character line width is 2.
0 mm. Dial dial: outer diameter 10 mm. Inner diameter 5.0-5.02
mm. -Buffer ring Material: S45C. Inner diameter: 5.0 mm. Thickness: 5 mm. Spring: Heat resistant spring. Steel ball: 2 mm, stainless steel SUJ2, HRC60 mm.・ Rotating middle frame Material: Same as fixed outer ring part. Shaft outer diameter: 4.97 to 4.99 mm.

【0027】(2)成形条件 樹脂:三菱レイヨン(株)のダイヤペットABS樹脂。 樹脂温度:230℃±5℃。 射出圧:1900kg/cm2(2) Molding conditions Resin: Diapet ABS resin manufactured by Mitsubishi Rayon Co., Ltd. Resin temperature: 230 ° C. ± 5 ° C. Injection pressure: 1900 kg / cm 2 .

【0028】(3)成形加工品 成形品の用途:(株)竜王村田機器のファクシミリのハウ
ジングケース。 重量:330g。 平均厚さ:3mm。
(3) Molded product Use of molded product: facsimile housing case of Ryuo Murata Kikai Co., Ltd. Weight: 330g. Average thickness: 3 mm.

【0029】(4)実施結果 上記本発明の金型マーカーを取り付けて30万ショット
使用した金型を用いて、連続10時間成形した直後で
の、矢印指示位置変更のための回転自在中コマの回転性
は良好であった。また、金型マーカーによって成形加工
品に刻印された文字の印影は鮮明であった。更に、より
小型のマーキング装置(ダイヤル文字盤の外径5mm)
においても同様の結果が得られた。
(4) Result of Implementation A rotatable frame for changing the position indicated by an arrow immediately after molding for 10 hours continuously using a mold having 300,000 shots with the mold marker of the present invention attached thereto. The rotation was good. The imprint of the character stamped on the molded product by the mold marker was clear. Furthermore, a smaller marking device (diameter of dial face 5 mm)
Also obtained the same result.

【0030】[比較例]上述した図5及び図6に示す従
来の金型マーカーを金型に取り付けて、射出成形を実施
した。なお、使用した金型マーカーの材質や寸法、成形
条件、成形加工品等は上記実施例と等しくした。その結
果、従来の金型マーカーを取り付けて10万ショット使
用した金型を用いて、連続5時間成形した直後での、矢
印指示位置変更のための回転自在中コマの回転にはやや
困難を来した。更に30万ショット使用した金型を用い
て、連続10時間成形した直後での、矢印指示位置変更
のための回転自在中コマの回転は不可能であった。ま
た、何れの場合も、成形加工品に刻印された文字の印影
は上記実施例に比べてやや不鮮明であった。なお、従来
構造の金型マーカーでダイヤル文字盤の外径が6mmよ
り小さいものは普及していない。
COMPARATIVE EXAMPLE The conventional mold marker shown in FIGS. 5 and 6 was attached to a mold and injection molding was performed. The materials and dimensions of the mold markers, molding conditions, molded products, and the like used were the same as those in the above examples. As a result, it is somewhat difficult to rotate the rotatable top for changing the position indicated by the arrow immediately after molding for 5 hours in a continuous manner using a mold having 100,000 shots with a conventional mold marker attached. did. Further, it was impossible to rotate the rotatable frame for changing the position indicated by the arrow immediately after molding for 10 hours continuously using a mold using 300,000 shots. In each case, the imprint of the character stamped on the molded product was somewhat unclear compared to the above embodiment. It should be noted that mold markers having a conventional structure and a dial dial having an outer diameter of less than 6 mm are not widely used.

【0031】[0031]

【発明の効果】以上説明したように、本発明の金型マー
カーは、スプリング及び鋼球を、回転自在中コマ、嵌合
固定外輪部の何れからも独立した緩衝リングに埋め込む
構造としたことと、緩衝リングの熱緩衝機能とによっ
て、成形熱によるスプリングや鋼球近辺への温度影響を
少なくし、高温による劣化や回転自在中コマの回転不良
を回避することができる。また、上記のようにスプリン
グ及び鋼球を、回転自在中コマではなく、安価かつ容易
に作製可能な緩衝リングに埋め込むようにしたことによ
って、回転自在中コマの構造が単純となり、回転自在中
コマの取り替えや作製そのものも簡単となるため、これ
らは成形現場での簡易作業として遂行できるようにな
る。更に、スプリングや鋼球近辺への温度影響が少ない
ことと、緩衝リングの易製作性との相乗効果で、極めて
小型の金型マーカーを作製することも可能となる。
As described above, the mold marker of the present invention has a structure in which a spring and a steel ball are embedded in a buffer ring independent of any of a rotatable middle piece and a fixed outer ring portion. In addition, the thermal buffer function of the buffer ring can reduce the influence of the molding heat on the temperature of the spring and the vicinity of the steel ball, thereby avoiding deterioration due to high temperature and poor rotation of the rotatable top. In addition, as described above, the spring and the steel ball are embedded not in the rotatable middle frame but in a buffer ring that can be easily manufactured at a low cost, so that the structure of the rotatable middle frame is simplified, and the rotatable middle frame is simplified. Since the replacement and the production itself are also simplified, these can be performed as simple operations at the molding site. Furthermore, a synergistic effect of a small temperature influence on the spring and the vicinity of the steel ball and the ease of manufacture of the buffer ring makes it possible to manufacture an extremely small mold marker.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係る金型マーカーの一例を示す分解斜
視図である。
FIG. 1 is an exploded perspective view showing an example of a mold marker according to the present invention.

【図2】本発明に係る金型マーカーの一例を示す断面図
である。
FIG. 2 is a cross-sectional view showing an example of a mold marker according to the present invention.

【図3】本発明に係る金型マーカーの一例を示す平面図
である。
FIG. 3 is a plan view showing an example of a mold marker according to the present invention.

【図4】本発明に係る金型マーカーを金型に取り付けた
状態を示す断面図である。
FIG. 4 is a cross-sectional view showing a state where the mold marker according to the present invention is attached to a mold.

【図5】従来の金型マーカーの分解斜視図である。FIG. 5 is an exploded perspective view of a conventional mold marker.

【図6】従来の金型マーカーの断面図である。FIG. 6 is a sectional view of a conventional mold marker.

【符号の説明】[Explanation of symbols]

1 金型マーカー 2 嵌合固定外輪部 3 ダイヤル文字盤 4 配列文字 5 回転自在中コマ 6 矢印盤 7 矢印 8 キー溝 9 スプリング 10 鋼球 11 台座 12 位置確定穴 13 軸部 14 小内径部 15 大内径部 16 段差 17 緩衝リング 18 孔 19 金型コアー(金型本体) 20 金型基盤 21 マーカー止め板 22 取り付け孔 DESCRIPTION OF SYMBOLS 1 Mold marker 2 Fitting fixed outer ring part 3 Dial dial 4 Arrangement character 5 Rotatable middle piece 6 Arrow plate 7 Arrow 8 Keyway 9 Spring 10 Steel ball 11 Pedestal 12 Positioning hole 13 Shaft part 14 Small inner diameter part 15 Large Inner diameter part 16 Step 17 Buffer ring 18 Hole 19 Mold core (Mold main body) 20 Mold base 21 Marker stopper plate 22 Mounting hole

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】(a)所定の内径を有する大内径部と、当該
大内径部より小さな内径を有する小内径部とを持った筒
状体であって、当該大内径部と小内径部とはその内部が
段差を持ってつながるとともに、各々筒状体の反対側の
端面に開口し、小内径部が開口する側の筒状体端面に、
環状に配列された所定の配列文字が刻まれたダイヤル文
字盤が形成された嵌合固定外輪部、 (b)前記嵌合固定外輪部の小内径部と略同等の内径と、
前記嵌合固定外輪部の大内径部に嵌装可能な外径とを有
する環状体であって、その内径と大径との間の部位に、
少なくとも1つの孔を有し、当該孔にスプリングを介し
て鋼球が埋め込まれた緩衝リング、及び (c)前記嵌合固定外輪部の大内径部に嵌装可能な径を有
する円柱状の台座と、当該台座の一端面から当該台座の
軸方向に突出した、前記嵌合固定外輪部の小内径部に嵌
装可能な径を有する円柱状の軸部とを有し、当該軸部が
突出する側の台座の端面に、前記緩衝リングに埋め込ま
れた鋼球の一部が入り込める程度の深さを有する位置確
定穴が、前記嵌合固定外輪部のダイヤル文字盤の配列文
字と対応するように環状に配列して形成されるととも
に、前記軸部の端面に、前記ダイヤル文字盤の配列文字
の特定箇所を指示するための矢印が刻まれた矢印盤が形
成された回転自在中コマ、からなり、 (d)前記緩衝リングに、前記回転自在中コマの軸部を挿
通し、これらを前記嵌合固定外輪部に嵌装してなること
を特徴とする金型マーカー。
(A) A cylindrical body having a large inner diameter portion having a predetermined inner diameter and a small inner diameter portion having an inner diameter smaller than the large inner diameter portion, wherein the large inner diameter portion, the small inner diameter portion, The inside of the cylindrical body is connected with a step, and each is opened on the opposite end face of the cylindrical body, and the cylindrical body end face on the side where the small inner diameter part is opened,
A fixed outer ring portion formed with a dial face engraved with a predetermined arrangement of characters arranged in a ring, (b) an inner diameter substantially equal to a small inner diameter portion of the fitted fixed outer ring portion,
An annular body having an outer diameter that can be fitted to the large inner diameter portion of the fitting fixed outer ring portion, and a portion between the inner diameter and the large diameter,
A buffer ring having at least one hole, and a steel ball embedded in the hole via a spring; and (c) a cylindrical pedestal having a diameter that can be fitted to a large inner diameter portion of the fitting fixed outer ring portion. And a columnar shaft having a diameter protruding from one end surface of the pedestal in the axial direction of the pedestal and having a diameter that can be fitted to the small inner diameter portion of the fitting fixed outer ring portion. A position determining hole having a depth such that a part of the steel ball embedded in the buffer ring can be inserted into the end surface of the base on the side of the mating side corresponds to the arrangement character of the dial dial of the fitting fixed outer ring portion. A rotatable middle piece, which is formed in an annular array on the end face of the shaft portion, and on which an arrow plate engraved with an arrow for designating a specific portion of the arrayed characters of the dial dial is formed. (D) The shaft portion of the rotatable middle piece is attached to the buffer ring. Through mold markers characterized by being fitted them into the fitting fixing the outer ring portion.
JP9075209A 1997-03-27 1997-03-27 Mold marker Withdrawn JPH10264161A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9075209A JPH10264161A (en) 1997-03-27 1997-03-27 Mold marker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9075209A JPH10264161A (en) 1997-03-27 1997-03-27 Mold marker

Publications (1)

Publication Number Publication Date
JPH10264161A true JPH10264161A (en) 1998-10-06

Family

ID=13569589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9075209A Withdrawn JPH10264161A (en) 1997-03-27 1997-03-27 Mold marker

Country Status (1)

Country Link
JP (1) JPH10264161A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002028616A1 (en) * 2000-10-05 2002-04-11 Alberto Navarra Pruna Marker for plastic part forming molds
ES2307358A1 (en) * 2005-06-03 2008-11-16 Uratanishoji Kabushiki Kaisha Removable marking device for a mold
JP2009045894A (en) * 2007-08-22 2009-03-05 Brother Ind Ltd Method for forming identification section of resin molded article, method for manufacturing resin molded article, and resin molded article
WO2010149417A1 (en) * 2009-06-23 2010-12-29 Opitz Gmbh Variable identification stamp
CN103612485A (en) * 2013-11-27 2014-03-05 包头钢铁(集团)有限责任公司 Device for printing serial number marks on cylindrical metal surface and using method thereof
CN103625127A (en) * 2013-11-27 2014-03-12 包头钢铁(集团)有限责任公司 Device for printing serial number mark on surface of spherical metal and method for using device
JP2021030693A (en) * 2019-08-29 2021-03-01 ベクトル株式会社 Engraving device with leveling function and engraving method
CN112742975A (en) * 2020-12-31 2021-05-04 鹤壁天淇汽车模具有限公司 Mould informatization marking dimpling device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002028616A1 (en) * 2000-10-05 2002-04-11 Alberto Navarra Pruna Marker for plastic part forming molds
ES2307358A1 (en) * 2005-06-03 2008-11-16 Uratanishoji Kabushiki Kaisha Removable marking device for a mold
JP2009045894A (en) * 2007-08-22 2009-03-05 Brother Ind Ltd Method for forming identification section of resin molded article, method for manufacturing resin molded article, and resin molded article
WO2010149417A1 (en) * 2009-06-23 2010-12-29 Opitz Gmbh Variable identification stamp
CN103612485A (en) * 2013-11-27 2014-03-05 包头钢铁(集团)有限责任公司 Device for printing serial number marks on cylindrical metal surface and using method thereof
CN103625127A (en) * 2013-11-27 2014-03-12 包头钢铁(集团)有限责任公司 Device for printing serial number mark on surface of spherical metal and method for using device
CN103625127B (en) * 2013-11-27 2017-12-01 包头钢铁(集团)有限责任公司 A kind of device and its application method that numbering mark is printed in surface of spherical metal
JP2021030693A (en) * 2019-08-29 2021-03-01 ベクトル株式会社 Engraving device with leveling function and engraving method
CN112742975A (en) * 2020-12-31 2021-05-04 鹤壁天淇汽车模具有限公司 Mould informatization marking dimpling device

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