JP3470880B2 - In-mold removable marking device - Google Patents
In-mold removable marking deviceInfo
- Publication number
- JP3470880B2 JP3470880B2 JP03488699A JP3488699A JP3470880B2 JP 3470880 B2 JP3470880 B2 JP 3470880B2 JP 03488699 A JP03488699 A JP 03488699A JP 3488699 A JP3488699 A JP 3488699A JP 3470880 B2 JP3470880 B2 JP 3470880B2
- Authority
- JP
- Japan
- Prior art keywords
- index
- outer shell
- mold
- marking device
- display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
- B29C33/424—Moulding surfaces provided with means for marking or patterning
- B29C33/428—For altering indicia, e.g. data, numbers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は金型成形時に成形品
の表面に刻印表示を行う刻印装置に関し、より詳しくは
成形品の表面に凹凸を生じさせず、刻印の交換作業を容
易に行うことができ、指標体の脱着操作の操作性が良
く、指標体を外殻体の標示位置に応じて正確且つ容易に
位置決めすることができる型内脱着式刻印装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marking device for marking on the surface of a molded product at the time of molding a mold, and more particularly, it is possible to easily carry out the exchanging work of the marking without causing unevenness on the surface of the molded product. The present invention relates to an in-mold detachable marking device capable of performing the attaching / detaching operation of the index body with good operability and accurately and easily positioning the index body according to the marking position of the outer shell.
【0002】[0002]
【従来の技術】成形品には、通常、その表面に製造の日
付やロット番号、製品番号等が表示されており、これら
の表示により成形品に不良が発生した際の原因調査や在
庫管理を行っている。これらの表示は、成形金型の内面
側に刻印表示部を備えた表示体を着脱自在に挿入し、挿
入した状態で金型成形を行うことにより、表示体の刻印
内容がそのまま成形品の表面に刻印成形されるようにな
っている。2. Description of the Related Art Molded products usually have the date of manufacture, lot number, product number, etc. displayed on their surface. Is going. These markings are made by inserting a display unit equipped with a marking display part on the inner surface of the molding die in a detachable manner, and molding the mold in the inserted state. It is designed to be stamped on.
【0003】従来のこの種の刻印装置としては、例えば
図4に示すような刻印装置が存在している。図4示の刻
印装置(A)は、金型内に嵌入される表示外殻体(B)
と、大径部(c1)と小径部(c2)を有し表示外殻体
(B)内に嵌入される指標体(C)と、指標体(C)に
取付けられるOリング(D)から構成されており、表示
外殻体(B)及び指標体(C)の金型内部に臨む面に
は、数字等からなる表示部が形成されている。この刻印
装置(A)は、表示外殻体(B)及び指標体(C)の表
示部が金型内面に臨むように金型内に嵌入されて使用さ
れるのであるが、例えば図示のように表示外殻体(B)
で「月」を、指標体(C)で「年」を表示させるように
構成されている場合、年が変わったときには指標体
(C)のみを交換すればこと足りるにも関わらず、刻印
装置(A)全体を金型から取り外さなければ指標体
(C)を取り外すことができないため、非常に面倒であ
り作業効率の低下を招いていた。As a conventional marking device of this type, there is a marking device as shown in FIG. 4, for example. The marking device (A) shown in FIG. 4 has a display outer shell (B) fitted in a mold.
And an index body (C) having a large diameter portion (c1) and a small diameter portion (c2) fitted into the display outer shell body (B), and an O-ring (D) attached to the indicator body (C). The display outer shell body (B) and the index body (C) are provided with a display portion formed of numbers or the like on their surfaces facing the inside of the mold. The marking device (A) is used by being inserted into the mold so that the display portions of the display outer shell (B) and the index body (C) face the inner surface of the mold. Shown on outer shell (B)
If the marking device (C) is configured to display the "month" and the indicator body (C) displays the "year", it is sufficient to replace only the indicator body (C) when the year changes, but the marking device ( A) The index body (C) cannot be removed unless the whole is removed from the mold, which is very troublesome and causes a reduction in work efficiency.
【0004】このような欠点に鑑みて、図5に示すよう
な、刻印装置全体を金型から取り外さずとも指標体のみ
を交換することが可能な刻印装置も存在している。図5
示の刻印装置(A)は、金型内に嵌入される外殻体
(E)と、金型内面に臨む指標部(f1)とねじ部(f
2)からなり外殻体(E)内に嵌入される指標体(F)
とから構成される。外殻体(E)は内径が2段に構成さ
れており、下段部(e1)にはねじ溝が螺刻され、この
ねじ溝に前記指標体(F)のねじ部(f2)が螺合され
ている。そして、指標部(f1)の下面と外殻体(E)
の上段部(e2)の間にばね(G)が介装されており、
指標体(F)をドライバー等により回転させて外殻体
(E)との螺合を外すことにより、指標体(F)のみを
金型から外すことができるようになっている。しかしな
がら、図5に示した刻印装置においては、指標体(F)
がばね(H)により常に金型内方向に向けて付勢されて
いるので、金型内面において指標体(F)が外殻体
(E)から突出する状態となり易く、指標体(F)と外
殻体(E)を面一に保つことができず、成形品の表面に
凹凸が生じてしまい均一な成形面が得られないという課
題が存在した。In view of such drawbacks, there is also a marking device as shown in FIG. 5, which can replace only the index body without removing the entire marking device from the mold. Figure 5
The marking device (A) shown has an outer shell (E) fitted in a mold, an index part (f1) facing the inner surface of the mold, and a screw part (f).
2) An index body (F) which is made of 2) and is fitted into the outer shell body (E).
Composed of and. The outer shell (E) has an inner diameter of two steps, and a thread groove is threaded on the lower step (e1), and the thread part (f2) of the index body (F) is screwed into this thread groove. Has been done. Then, the lower surface of the indicator portion (f1) and the outer shell (E)
A spring (G) is interposed between the upper step (e2) of
By rotating the index body (F) with a driver or the like to remove the screwing with the outer shell body (E), only the index body (F) can be removed from the mold. However, in the marking device shown in FIG. 5, the index body (F)
Is always urged by the spring (H) toward the inside of the mold, the index body (F) is likely to project from the outer shell (E) on the inner surface of the mold, and the index body (F) There was a problem that the outer shell (E) could not be kept flush and unevenness was generated on the surface of the molded product, so that a uniform molded surface could not be obtained.
【0005】[0005]
【発明が解決しようとする課題】上記したような実情に
鑑みて、本願発明者は特開平10−34671号におい
て、指標体に対してその表面が外殻体表面から突出しな
い方向にばね力を付勢させた型内脱着式刻印装置を提案
している。この刻印装置は、指標体と外殻体を面一に保
つことができるので、成形品の表面に凹凸が生じること
がない優れたものであったが、以下のような課題が存在
していた。すなわち、この刻印装置では、使用時におい
て指標体を右回りに回転させるのに伴って指標体のねじ
部に螺合されたナットが上昇するのを防止するために、
指標体のねじ部及びナットを逆ねじ(左ねじ)に形成し
ていたため、指標体の脱着操作の操作性が悪かった。ま
た、ねじの外周面に回り止めの突起を設けて、この突起
を外殻体の内面に形成された係合凹部に係合させる構成
において、突起が1つしか設けられていないことによっ
て、ねじの回り止めが安定して機能しない場合があっ
た。また、外殻体の最下面に装着される蓋体が穴の無い
円板状であったため、蓋体の脱着操作が行いづらかっ
た。更には、指標体を外殻体の表示位置に応じて正確且
つ容易に位置決めすることが難しかった。本願発明者ら
は、上記課題を解決するために鋭意研究を続けた結果、
本願発明を完成するに至った。In view of the above situation, the inventor of the present application has disclosed in Japanese Patent Laid-Open No. 10-34671 that a spring force is applied to an index body in a direction in which its surface does not protrude from the outer shell surface. We have proposed an in-mold detachable engraving device that is energized. Since this marking device can keep the index body and the outer shell flush with each other, it was excellent in that no irregularities were formed on the surface of the molded product, but there were the following problems. . That is, in this marking device, in order to prevent the nut screwed in the threaded portion of the index body from rising when the index body is rotated clockwise in use,
Since the threaded portion and the nut of the index body were formed in the reverse thread (left-handed thread), the operability of the attachment / detachment operation of the index body was poor. Further, in the configuration in which the rotation preventing protrusion is provided on the outer peripheral surface of the screw and the protrusion is engaged with the engaging recess formed on the inner surface of the outer shell, only one protrusion is provided, There was a case where the detent was not functioning stably. In addition, since the lid mounted on the lowermost surface of the outer shell was a disc-shaped member having no holes, it was difficult to remove and attach the lid. Furthermore, it is difficult to accurately and easily position the index body according to the display position of the outer shell. The present inventors, as a result of continuing diligent research to solve the above problems,
The present invention has been completed.
【0006】[0006]
【課題を解決するための手段】本発明は上記従来技術の
課題を解決するために以下の手段を採用した。請求項1
記載の発明では、成形金型内に嵌入される略円筒形の表
示外殻体と、この表示外殻体内に嵌入され軸線まわりに
角変位可能な指標体とを備え、両者の表面に刻印表示部
が形成されてなる刻印装置であって、前記指標体は金型
内面に臨む指標部とこの指標部から延出されるねじ部と
から構成され、前記表示外殻体の内径は前記指標体が挿
入されたときに前記指標部が位置する小径の上段部と、
前記ねじ部が位置する大径の下段部とを備えてなり、該
下段部の最下部には蓋体が螺着されてなるとともに前記
指標体のねじ部にはナットが螺着され、該ナットと前記
表示外殻体の下段部上面との間にばねが介装され、この
ばねにより指標体に下向きの力が付勢されてなり、前記
ナットの外周には複数の突起が設けられてなるととも
に、前記蓋体は、その中心に前記ねじ部の外径よりも大
きな角穴を有し、前記表示外殻体の下段部には該突起が
係合可能な係合溝が軸方向に形成され、前記指標部の上
面と表示外殻体の上面とを面一とした状態において、前
記指標体のねじ部の基端部が前記係合溝の上端部よりも
上方に位置するように構成したことを特徴とする型内脱
着式刻印装置とした。The present invention adopts the following means in order to solve the above-mentioned problems of the prior art. Claim 1
In the invention described above, a substantially cylindrical display outer shell body fitted in the molding die and an index body fitted in the display outer shell body and capable of angular displacement around the axis are provided, and markings are displayed on both surfaces. In the marking device in which a portion is formed, the index body is composed of an index portion facing the inner surface of the mold and a screw portion extended from this index portion, and the inner diameter of the display outer shell body is the index body. An upper step portion of a small diameter in which the index portion is positioned when inserted,
A large-diameter lower step portion in which the screw portion is located, a lid is screwed to the lowermost portion of the lower step portion, and a nut is screwed to the screw portion of the indicator body; A spring is interposed between the upper surface of the lower part of the display outer shell and the downward force of the index body by the spring, and a plurality of protrusions are provided on the outer circumference of the nut. At the same time, the lid body has a diameter larger than the outer diameter of the threaded portion at its center.
An engaging groove having a square hole is formed in the lower step of the display outer shell so that the projection can be engaged with the upper surface of the indicator portion and the upper surface of the display outer shell. In one state, the proximal end portion of the threaded portion of the index body is configured to be located above the upper end portion of the engagement groove, thereby providing an in-mold detachable marking device.
【0007】請求項2記載の発明では、前記指標体の指
標部に半径方向外側へ向けて延出された弾性体と該弾性
体の先端に取着された球体とからなる位置決め部材が設
けられ、前記表示外殻体の上段部に位置決め部材の球体
の一部が嵌入する複数の嵌入溝が円周方向に沿って連続
的に且つ等間隔で形成されてなることを特徴とする請求
項1記載の型内脱着式刻印装置とした。 According to a second aspect of the invention, the finger of the index body is
Elastic body extending outward in the radial direction on the marking portion and the elasticity
A positioning member consisting of a sphere attached to the tip of the body is installed.
Sphere of the positioning member on the upper step of the display outer shell
A plurality of fitting grooves into which a part of the
Claims characterized in that they are formed at regular intervals.
The in-mold detachable marking device according to Item 1.
【0008】[0008]
【発明の実施の形態】以下、本発明に係る型内脱着式刻
印装置の好適な実施形態について、図面に基づいて説明
する。図1は本発明に係る型内脱着式刻印装置(1)の
断面図であり、図2はその一部切欠分解斜視図である。
本発明に係る型内脱着式刻印装置(1)は、成形金型内
に嵌入される略円筒形の表示外殻体(3)と、この表示
外殻体(3)内に軸線まわりに角変位可能に嵌入される
指標体(4)とを備えている。BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the in-mold detachable marking device according to the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of an in-mold detachable marking device (1) according to the present invention, and FIG. 2 is a partially cutaway exploded perspective view thereof.
An in-mold detachable marking device (1) according to the present invention comprises a substantially cylindrical display outer shell body (3) fitted in a molding die, and an angle around the axis line in the display outer shell body (3). And an index body (4) which is displaceably fitted.
【0009】図3は型内脱着式刻印装置(1)を金型に
取り付けた例を示す断面図である。図3示の成形金型
(2)は、注入口(23)を有する固定型(21)と、
この固定型(21)に接離する可動型(22)とからな
り、この固定型(21)と可動型(22)との間にキャ
ビティ(24)が形成されてなるものであり、型内脱着
式刻印装置(1)は、可動型(22)にキャビティ(2
4)に面して取り付けられている。FIG. 3 is a sectional view showing an example in which the in-mold detachable marking device (1) is attached to a mold. The molding die (2) shown in FIG. 3 includes a stationary die (21) having an injection port (23),
The movable mold (22) comes in contact with and separates from the fixed mold (21), and a cavity (24) is formed between the fixed mold (21) and the movable mold (22). The removable marking device (1) includes a movable die (22) and a cavity (2
It is attached facing 4).
【0010】表示外殻体(3)表面(金型内面に臨む
面)には、周方向に等間隔に月を表す数字「1」、
「2」、「3」、・・・、「12」からなる刻印表示部
が形成され、指標体(4)表面には、年を表わす数字
(図示例においては「99」)及び表示外殻体(3)表
面に設けられた月表示を指標する矢印型の指標(43)
からなる刻印表示部が形成されており、指標体(4)に
表示された年表示と指標(43)により指された月表示
により年月を同時に表すことができるようになってい
る。尚、指標(43)はドライバーで回転させることが
可能な溝とされている。On the surface of the display outer shell (3) (the surface facing the inner surface of the mold), the numeral "1" representing the moon at equal intervals in the circumferential direction,
An engraved display portion composed of "2", "3", ..., "12" is formed, and a number representing the year ("99" in the illustrated example) and a display outer shell are formed on the surface of the index body (4). Arrow-shaped indicator (43) provided on the surface of the body (3) for indicating the month display
An engraved display part made of is formed, and the year and month can be simultaneously displayed by the year display displayed on the index body (4) and the month display pointed by the index (43). The index (43) is a groove that can be rotated by a driver.
【0011】指標体(4)は指標部(41)とこの指標
部(41)から延出されるねじ部(42)とから構成さ
れており、指標部(41)は表面が金型(2)内面に臨
む円板状の指標面部(41a)とこの指標面部(41
a)の下部に形成された指標面部)よりも小径の指標基
部(41b)とからなる。指標基部(41b)には、半
径方向外側へ向けて延出されたばね(91)と、このば
ね(91)の先端に取着された球体(92)とからなる
位置決め部材(9)が設けられている。そして、指標
(43)の矢印の方向はこの位置決め部材(9)の延出
方向と一致している。また、ねじ部(42)は順ねじ
(右ねじ)とされている。The index body (4) is composed of an index part (41) and a screw part (42) extending from this index part (41), and the surface of the index part (41) is a mold (2). A disc-shaped index surface (41a) facing the inner surface and this index surface (41a)
The index base portion (41b) having a diameter smaller than that of the index surface portion formed in the lower part of a). The index base (41b) is provided with a positioning member (9) including a spring (91) extending outward in the radial direction and a sphere (92) attached to the tip of the spring (91). ing. The direction of the arrow of the index (43) coincides with the extending direction of the positioning member (9). The screw portion (42) is a forward screw (right screw).
【0012】表示外殻体(3)の内径は、指標体(4)
が挿入されたときに指標部(41)が位置する小径の上
段部(31)と、ねじ部(42)が位置する大径の下段
部(32)とを備えており、下段部(32)の最下部に
は蓋体(5)が螺着されている。下段部(32)の内径
は、蓋体(5)が螺着される雌ねじ部(33)の内径が
他の部分の内径よりも大きく形成されており、雌ねじ部
の長さは蓋体の厚さと等しくされている。The inner diameter of the display outer shell (3) is determined by the index body (4).
The lower step (32) includes a small-diameter upper step (31) in which the index part (41) is positioned when the is inserted and a large-diameter lower step (32) in which the screw part (42) is positioned. A lid (5) is screwed to the lowermost part of the. The inner diameter of the lower step portion (32) is formed such that the inner diameter of the female screw portion (33) to which the lid body (5) is screwed is larger than the inner diameters of other portions, and the length of the female screw portion is the thickness of the lid body. Is equal to.
【0013】指標体(4)の下端にはナット(6)が螺
着されており、このナット(6)は下段部(32)の内
径と略等しい外径を有している。また、ナット(6)と
表示外殻体(3)の下段部(32)の上面との間にばね
(7)が介装されており、このばね(7)により指標体
(4)に下向きの力、すなわち指標体(4)表面が表示
外殻体(3)表面から突出しないように作用する力が付
勢されている。従って、表示外殻体(3)と指標体
(4)表面が完全に面一状態となり、成形品の表面に凹
凸が生じることがなく均一な成形面を得ることができ
る。また、年が変わった際には、指標体(4)をドライ
バーで回転させてナット(6)との螺合を外すことによ
り、型を分解せずとも指標体(4)のみを取り外して交
換することが可能であるため、交換作業が容易であり作
業効率に優れる。A nut (6) is screwed to the lower end of the index body (4), and the nut (6) has an outer diameter substantially equal to the inner diameter of the lower step portion (32). Further, a spring (7) is interposed between the nut (6) and the upper surface of the lower step portion (32) of the display outer shell body (3), and the spring (7) directs downward to the indicator body (4). Is applied, that is, a force that acts so that the surface of the indicator body (4) does not protrude from the surface of the display outer shell body (3). Therefore, the surfaces of the display outer shell body (3) and the index body (4) are completely flush with each other, and a uniform molding surface can be obtained without causing irregularities on the surface of the molded product. When the year changes, rotate the indicator body (4) with a screwdriver to unscrew the nut (6), and remove only the indicator body (4) and replace it without disassembling the mold. Therefore, the replacement work is easy and the work efficiency is excellent.
【0014】ナット(6)の外周には、複数(図示例で
は3つ)の半円状の突起(61)が設けられており、表
示外殻体(3)の下段部(32)にはこれらの突起(6
1)が係合可能な断面半円状の係合溝(34)が軸方向
に形成されている。尚、本発明において、突起(61)
の数は複数であれば特に限定されず、2つや4つ、或い
は5つ以上であってもよい。また、係合溝(34)は突
起(61)の数と同数設けられる。このように、突起
(61)の数を複数個とすることによって、ナット
(6)の回り止め機能が安定して発揮されるようにな
る。A plurality of (three in the illustrated example) semicircular protrusions (61) are provided on the outer periphery of the nut (6), and the lower step portion (32) of the display outer shell body (3) is provided. These protrusions (6
An engaging groove (34) having a semicircular cross section that can be engaged with 1) is formed in the axial direction. In the present invention, the protrusion (61)
Is not particularly limited as long as it is plural, and may be two, four, or five or more. Further, the engaging grooves (34) are provided in the same number as the number of the protrusions (61). In this way, by making the number of the protrusions (61) plural, the rotation preventing function of the nut (6) can be stably exhibited.
【0015】本発明に係る型内脱着式刻印装置(1)で
は、図1に示す如く、指標部(41)の上面と表示外殻
体(3)の上面とを面一とした状態において、指標体
(4)のねじ部(42)の基端部(42a)が、係合溝
(34)の上端部(34a)よりも上方に位置するよう
に構成される。これによって、ナット(6)は係合溝
(34)の上端部(34a)よりも上方に移動すること
ができず、ナット(6)はねじ部(42)の基端部(4
2a)へと達することができなくなり、ナット(6)が
基端部(42a)へと食い込むことを防止することがで
きる。これによって、従来の如く、指標体のねじ部及び
ナットを逆ねじ(左ねじ)に形成する必要もなくなり、
指標体の脱着操作の操作性に優れたものとなる。In the in-mold detachable marking device (1) according to the present invention, as shown in FIG. 1, when the upper surface of the indicator portion (41) and the upper surface of the display outer shell (3) are flush with each other, The base end portion (42a) of the screw portion (42) of the index body (4) is configured to be located above the upper end portion (34a) of the engagement groove (34). This prevents the nut (6) from moving higher than the upper end (34a) of the engagement groove (34), and the nut (6) causes the nut (6) to move toward the proximal end (4) of the threaded portion (42).
2a) cannot be reached, and the nut (6) can be prevented from biting into the base end portion (42a). This eliminates the need for forming the threaded portion and the nut of the index body into a reverse thread (left thread) as in the conventional case,
The operability of the detaching operation of the index body is excellent.
【0016】蓋体(5)の中心には角穴(51)が設け
られており、この角穴(51)にレンチ等を差し込むこ
とによって、蓋体(5)を容易に回転させて締め付ける
ことが可能とされている。尚、図示例では角穴(51)
の形状は四角形とされているが、六角形等であってもよ
い。また、貫通穴とせず、蓋体(5)の底面に達しない
穴としてもよい。この角穴(51)の内径は指標体
(4)のねじ部(42)の外径よりも大きく形成するこ
とが好ましい。その理由は、角穴(51)の内径を指標
体(4)のねじ部(42)の外径よりも大きく形成する
ことによって、図1に示す如く、指標体(4)のねじ部
(42)の先端を角穴(51)へと入り込ませることが
可能となり、ねじ部(42)の長さを長く形成すること
ができるからである。そしてこれによって、使用時にお
いて指標体(4)を回転させた際に、ナット(6)とね
じ部(42)との螺合が外れるまでの回転数が増え、指
標体のねじ部及びナットを順ねじ(右ねじ)に形成した
場合でも、使用時にナット(6)とねじ部(42)との
螺合が外れることがなくなる。A square hole (51) is provided in the center of the lid body (5), and by inserting a wrench or the like into the square hole (51), the lid body (5) is easily rotated and tightened. Is possible. In the illustrated example, the square hole (51)
Although the shape of is a quadrangle, it may be a hexagon or the like. Further, it may be a hole that does not reach the bottom surface of the lid body (5) instead of the through hole. The inner diameter of the square hole (51) is preferably formed larger than the outer diameter of the threaded portion (42) of the index body (4). The reason is that by forming the inner diameter of the square hole (51) larger than the outer diameter of the threaded portion (42) of the index body (4), as shown in FIG. 1, the threaded portion (42) of the index body (4) is formed. This is because it is possible to allow the tip of the bracket) to enter the square hole (51), and the length of the screw portion (42) can be increased. As a result, when the index body (4) is rotated during use, the number of rotations until the nut (6) and the screw part (42) are unscrewed increases, and the screw part and the nut of the index body are removed. Even when it is formed as a forward thread (right thread), the nut (6) and the threaded portion (42) are not disengaged during use.
【0017】表示外殻体(3)の上段部(31)には、
指標基部(41b)に設けられた位置決め部材(9)の
球体(92)の一部が嵌入する複数の嵌入溝(31a)
が円周方向に沿って連続的に且つ等間隔で形成されてい
る。嵌入溝(31a)の数は、指標体(4)を何度づつ
回転させればよいかによって適宜設定すればよく、例え
ば図示例の如く、1か月毎に指標体(4)を回転させる
構成とした場合には12個とすればよい。球体(92)
はばね(91)によって半径方向外側へ向けて常に付勢
され、通常の状態では球体(92)は一つの嵌入溝(3
1a)に入り込んでいるが、指標体(4)を回転させた
場合には、ばね(91)が縮むことによって球体(9
2)が隣の嵌入溝(31a)へと入り込むようになる。
これによって、指標体(4)を表示外殻体(3)の表示
位置に応じて正確且つ容易に位置決めすることができ
る。In the upper part (31) of the display outer shell (3),
Plural insertion grooves (31a) into which a part of the sphere (92) of the positioning member (9) provided on the index base (41b) is inserted.
Are continuously formed at equal intervals along the circumferential direction. The number of fitting grooves (31a) may be appropriately set depending on how many times the index body (4) should be rotated. For example, as shown in the drawing, the index body (4) is rotated every month. In the case of a configuration, the number may be twelve. Sphere (92)
Is always biased radially outward by a spring (91), and in a normal state, the sphere (92) has one fitting groove (3).
1a), but when the index body (4) is rotated, the spring (91) contracts to cause the sphere (9) to rotate.
2) enters into the adjacent fitting groove (31a).
Thereby, the index body (4) can be accurately and easily positioned according to the display position of the display outer shell body (3).
【0018】尚、本発明に係る型内脱着式刻印装置
(1)においては、表示外殻体(3)及び指標体(4)
の表示内容は、図示例に限定されるものではなく、例え
ば指標体(4)に月、表示外殻体(3)に日を表示する
構成や、或いは全体としてロット番号や製品番号を表示
させる構成としてもよく、要するに指標体(4)のみの
交換により長期間使用することができる表示の構成であ
れば、適宜任意の構成を採用することができる。In the in-mold detachable marking device (1) according to the present invention, the display outer shell body (3) and the indicator body (4).
The display content of is not limited to the example shown in the figure. For example, the indicator body (4) displays the month and the display outer shell body (3) displays the day, or the entire lot number or product number is displayed. Any configuration may be adopted as long as it is a display configuration that can be used for a long period of time by replacing only the indicator body (4).
【0019】[0019]
【発明の効果】以上説明したように、請求項1に係る発
明は、成形金型内に嵌入される略円筒形の表示外殻体
と、この表示外殻体内に嵌入され軸線まわりに角変位可
能な指標体とを備え、両者の表面に刻印表示部が形成さ
れてなる刻印装置であって、前記指標体は金型内面に臨
む指標部とこの指標部から延出されるねじ部とから構成
され、前記表示外殻体の内径は前記指標体が挿入された
ときに前記指標部が位置する小径の上段部と、前記ねじ
部が位置する大径の下段部とを備えてなり、該下段部の
最下部には蓋体が螺着されてなるとともに前記指標体の
ねじ部にはナットが螺着され、該ナットと前記表示外殻
体の下段部上面との間にばねが介装され、このばねによ
り指標体に下向きの力が付勢されてなり、前記ナットの
外周には複数の突起が設けられてなるとともに、前記表
示外殻体の下段部には該突起が係合可能な係合溝が軸方
向に形成され、前記指標部の上面と表示外殻体の上面と
を面一とした状態において、前記指標体のねじ部の基端
部が前記係合溝の上端部よりも上方に位置するように構
成したことを特徴とする型内脱着式刻印装置であるか
ら、指標体を回転させた際に、ナットが指標部のねじ基
端部へと食い込むことを防止することができ、指標体の
ねじ部及びナットを逆ねじに形成する必要がなく、指標
体の脱着操作の操作性に優れたものとなる。しかも、ナ
ットの回り止め機能が安定して発揮されるようになる。As described above, according to the first aspect of the present invention, the display outer shell body having a substantially cylindrical shape fitted in the molding die and the angular displacement around the axis line fitted in the display outer shell body are provided. A marking device comprising a possible index body and a marking display portion formed on both surfaces thereof, wherein the index body comprises an index portion facing the inner surface of the mold and a screw portion extended from this index portion. The inner diameter of the display outer shell comprises a small-diameter upper step portion in which the index portion is positioned when the index body is inserted, and a large-diameter lower step portion in which the screw portion is positioned. A lid is screwed to the lowermost part of the portion, a nut is screwed to the threaded portion of the index body, and a spring is interposed between the nut and the upper surface of the lower step of the display outer shell. , The spring applies a downward force to the index body, and a plurality of protrusions are formed on the outer circumference of the nut. The display outer shell body is provided with an engaging groove axially formed in the lower step of the display outer shell body, and the upper surface of the indicator portion and the upper surface of the display outer shell body are flush with each other. In this state, since the proximal end portion of the threaded portion of the index body is configured to be located above the upper end portion of the engagement groove, it is an in-mold removable marking device, the index body When rotating, it is possible to prevent the nut from biting into the screw base end part of the index part, and it is not necessary to form the thread part and nut of the index body into a reverse thread, and the operation of attaching and detaching the index body It has excellent properties. Moreover, the nut rotation preventing function can be stably exhibited.
【0020】更に、前記蓋体の中心に角穴が設けられて
なることを特徴とする型内脱着式刻印装置であるから、
角穴にレンチ等を差し込むことによって、蓋体を容易に
回転させて締め付けることが可能であり、角穴の内径を
指標体のねじ部の外径よりも大きく形成することによっ
て、指標体のねじ部及びナットを順ねじに形成した場合
でも、使用時にナットとねじ部との螺合が外れることが
ない。 Further, a square hole is provided at the center of the lid.
Since it is a detachable type marking device in the mold,
By inserting a wrench, etc. into the square hole, the lid can be easily rotated and tightened.By making the inner diameter of the square hole larger than the outer diameter of the threaded portion of the index body, Even when the portion and the nut are formed as a forward thread, the nut and the threaded portion will not be disengaged during use.
【0021】請求項2に係る発明は、前記指標体の指標
部に半径方向外側へ向けて延出された弾性体と該弾性体
の先端に取着された球体とからなる位置決め部材が設け
られ、前記表示外殻体の上段部に位置決め部材の球体の
一部が嵌入する複数の嵌入溝が円周方向に沿って連続的
に且つ等間隔で形成されてなることを特徴とする請求項
1記載の型内脱着式刻印装置であるから、指標体を表示
外殻体の表示位置に応じて正確且つ容易に位置決めする
ことができる。According to a second aspect of the present invention, the indexing portion of the index body is provided with a positioning member including an elastic body extending outward in the radial direction and a sphere attached to the tip of the elastic body. , claim, wherein a plurality of fitting grooves partially fitted sphere of the positioning member in the upper portion of the display shell body is formed by continuously and equidistantly along a circumferential direction
Since it is the in-mold detachable marking device described in 1 , the index body can be accurately and easily positioned according to the display position of the display outer shell body.
【図1】本発明に係る型内脱着式刻印装置の好適な実施
形態を示す断面図である。FIG. 1 is a cross-sectional view showing a preferred embodiment of an in-mold detachable marking device according to the present invention.
【図2】本発明に係る型内脱着式刻印装置の好適な実施
形態を示す一部切欠分解斜視図である。FIG. 2 is a partially cutaway exploded perspective view showing a preferred embodiment of an in-mold detachable marking device according to the present invention.
【図3】本発明に係る型内脱着式刻印装置を金型に取り
付けた例を示す断面図である。FIG. 3 is a cross-sectional view showing an example in which the in-mold detachable marking device according to the present invention is attached to a mold.
【図4】従来の刻印装置の一例を示す分解斜視図であ
る。FIG. 4 is an exploded perspective view showing an example of a conventional marking device.
【図5】従来の刻印装置の一例を示す断面図である。FIG. 5 is a sectional view showing an example of a conventional marking device.
1 型内脱着式刻印装置 2 金型 3 表示外殻体 31 上段部 32 下段部 34 係合溝 34a 係合溝の上端部 4 指標体 41 指標部 42 ねじ部 42a 基端部 43 指標 5 蓋体 51 角穴 6 ナット 61 突起 7 ばね 9 位置決め部材 91 ばね 92 球体 1 In-mold detachable marking device 2 mold 3 Display outer shell 31 Upper part 32 Lower part 34 Engagement groove 34a Upper end of engaging groove 4 indicator 41 Indicator 42 Thread 42a base end 43 indicators 5 Lid 51 square hole 6 nuts 61 protrusions 7 spring 9 Positioning member 91 spring 92 sphere
Claims (2)
外殻体と、この表示外殻体内に嵌入され軸線まわりに角
変位可能な指標体とを備え、両者の表面に刻印表示部が
形成されてなる刻印装置であって、前記指標体は金型内
面に臨む指標部とこの指標部から延出されるねじ部とか
ら構成され、前記表示外殻体の内径は前記指標体が挿入
されたときに前記指標部が位置する小径の上段部と、前
記ねじ部が位置する大径の下段部とを備えてなり、該下
段部の最下部には蓋体が螺着されてなるとともに前記指
標体のねじ部にはナットが螺着され、該ナットと前記表
示外殻体の下段部上面との間にばねが介装され、このば
ねにより指標体に下向きの力が付勢されてなり、前記ナ
ットの外周には複数の突起が設けられてなるとともに、
前記蓋体は、その中心に前記ねじ部の外径よりも大きな
角穴を有し、前記表示外殻体の下段部には該突起が係合
可能な係合溝が軸方向に形成され、前記指標部の上面と
表示外殻体の上面とを面一とした状態において、前記指
標体のねじ部の基端部が前記係合溝の上端部よりも上方
に位置するように構成したことを特徴とする型内脱着式
刻印装置。1. A substantially cylindrical display outer shell body fitted in a molding die, and an index body fitted in the display outer shell body and capable of being angularly displaced around an axis line. In the marking device in which a portion is formed, the index body is composed of an index portion facing the inner surface of the mold and a screw portion extended from this index portion, and the inner diameter of the display outer shell body is the index body. It is provided with a small-diameter upper step portion in which the index portion is positioned when inserted and a large-diameter lower step portion in which the screw portion is positioned, and a lid is screwed to the lowermost portion of the lower step portion. At the same time, a nut is screwed on the threaded portion of the index body, and a spring is interposed between the nut and the upper surface of the lower step portion of the display outer shell, and the spring applies a downward force to the index body. In addition to having a plurality of protrusions on the outer periphery of the nut,
The lid is larger than the outer diameter of the threaded portion in the center thereof.
An engaging groove that has a square hole and is axially formed in the lower step of the display outer shell is engageable with the projection, and the upper surface of the indicator portion and the upper surface of the display outer shell are flush with each other. In this state, the in-mold detachable marking device is characterized in that the base end of the threaded portion of the index body is located above the upper end of the engagement groove.
けて延出された弾性体と該弾性体の先端に取着された球
体とからなる位置決め部材が設けられ、前記表示外殻体
の上段部に位置決め部材の球体の一部が嵌入する複数の
嵌入溝が円周方向に沿って連続的に且つ等間隔で形成さ
れてなることを特徴とする請求項1記載の型内脱着式刻
印装置。 2. The index portion of the index body is directed outward in the radial direction.
Elastic body extended and attached to the tip of the elastic body
The display outer shell body is provided with a positioning member including a body.
A part of the sphere of the positioning member fits into the upper step of
Insertion grooves are formed continuously and at equal intervals along the circumferential direction.
In-mold detachable engraving according to claim 1, characterized in that
Marking device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03488699A JP3470880B2 (en) | 1999-02-12 | 1999-02-12 | In-mold removable marking device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03488699A JP3470880B2 (en) | 1999-02-12 | 1999-02-12 | In-mold removable marking device |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000229325A JP2000229325A (en) | 2000-08-22 |
JP3470880B2 true JP3470880B2 (en) | 2003-11-25 |
Family
ID=12426642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP03488699A Expired - Lifetime JP3470880B2 (en) | 1999-02-12 | 1999-02-12 | In-mold removable marking device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3470880B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6966257B2 (en) | 2004-03-12 | 2005-11-22 | Uratanishoji Kabushiki Kaisha | Removable marking device for mold |
DE102005042143B4 (en) * | 2005-06-03 | 2007-04-19 | Uratanishoji K.K. | Removable marking device for a mold |
JP2015036225A (en) * | 2013-08-13 | 2015-02-23 | 浦谷商事株式会社 | In-mold desorption type stamping device |
WO2015064120A1 (en) | 2013-10-31 | 2015-05-07 | 浦谷商事株式会社 | In-mold detachable stamping device |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2220159B1 (en) * | 2001-11-26 | 2006-02-01 | Rafael Bujalance Velasco | FECHADOR DEVICE WITH REPLACABLE CYLINDER FOR MOLDS, MATRIXES AND TOOLS. |
JP4279861B2 (en) * | 2006-09-13 | 2009-06-17 | 浦谷商事株式会社 | Stamping device |
US8794952B2 (en) * | 2010-03-01 | 2014-08-05 | Asm Technology Singapore Pte Ltd | Apparatus for molding electronic components |
CN104044244B (en) * | 2013-03-12 | 2018-05-18 | 汉达精密电子(昆山)有限公司 | date stamp |
JP6012113B2 (en) * | 2014-01-31 | 2016-10-25 | 浦谷商事株式会社 | In-mold removable marking device |
-
1999
- 1999-02-12 JP JP03488699A patent/JP3470880B2/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6966257B2 (en) | 2004-03-12 | 2005-11-22 | Uratanishoji Kabushiki Kaisha | Removable marking device for mold |
DE102005042143B4 (en) * | 2005-06-03 | 2007-04-19 | Uratanishoji K.K. | Removable marking device for a mold |
JP2015036225A (en) * | 2013-08-13 | 2015-02-23 | 浦谷商事株式会社 | In-mold desorption type stamping device |
WO2015064120A1 (en) | 2013-10-31 | 2015-05-07 | 浦谷商事株式会社 | In-mold detachable stamping device |
US9573304B2 (en) | 2013-10-31 | 2017-02-21 | Uratanishouji Kabushiki Kaisha | In-mold detachable marking device |
EP3064333A4 (en) * | 2013-10-31 | 2017-07-05 | Uratanishouji Kabushiki Kaisha | In-mold detachable stamping device |
Also Published As
Publication number | Publication date |
---|---|
JP2000229325A (en) | 2000-08-22 |
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