JPH0832421B2 - Rubber sheet molding equipment - Google Patents
Rubber sheet molding equipmentInfo
- Publication number
- JPH0832421B2 JPH0832421B2 JP4040199A JP4019992A JPH0832421B2 JP H0832421 B2 JPH0832421 B2 JP H0832421B2 JP 4040199 A JP4040199 A JP 4040199A JP 4019992 A JP4019992 A JP 4019992A JP H0832421 B2 JPH0832421 B2 JP H0832421B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber sheet
- movable
- mold
- cam
- thickness
- 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
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、異なる厚さの各種の未
加硫のゴムシート素材を圧縮して任意の厚さのゴムシー
トを得るのに有用な、ゴムシートの成形装置に関する。BACKGROUND OF THE INVENTION The present invention relates to various types of uncoated products of different thickness.
The present invention relates to a rubber sheet molding apparatus useful for compressing a vulcanized rubber sheet material to obtain a rubber sheet having an arbitrary thickness.
【０００２】[0002]
【従来の技術】従来、シリコーンゴム、天然ゴム、合成
ゴム等の未加硫のゴムシート素材を所定の厚さのゴムシ
ートに成形するには、この厚さに対応する厚さのキャビ
ティを有する金型に、未加硫のゴムシート素材を若干余
分に加えて圧縮していた。 Conventionally, silicone rubber, natural rubber, a molded unvulcanized rubber sheet material such as synthetic rubber to a predetermined thickness rubber sheet has a thickness of the cavity corresponding to the thickness A small amount of unvulcanized rubber sheet material was added to the mold and compressed.
【０００３】[0003]
【発明が解決しようとする課題】このため、得ようとす
るゴムシートの厚さが変わると、使用するゴムシート素
材の厚さも変わり、その都度キャビティの厚さの異なる
金型を準備しなければならないため、設備費が嵩むほ
か、金型の取り替えに多くの時間がかかり作業効率が悪
かった。したがって、本発明の目的は、金型を取り替え
ることなく、異なる厚さの各種 の未加硫のゴムシート素
材を圧縮して任意の厚さのゴムシートを得ることができ
る、ゴムシートの成形装置を提供するにある。 Therefore, when the thickness of the rubber sheet to be obtained changes, the rubber sheet material to be used is changed.
The thickness of the material also changes, and it is necessary to prepare molds with different cavity thicknesses each time, which increases equipment costs.
Or, it took a lot of time to replace the mold and the work efficiency was poor. Therefore, the object of the present invention is to replace the mold
Various unvulcanized rubber sheet materials of different thickness without
The material can be compressed to obtain a rubber sheet of any thickness
A rubber sheet forming apparatus is provided.
【０００４】[0004]
【課題を解決するための手段】本発明は、直油圧型締め
装置の下金型上に設けた未加硫のゴムシート素材を、そ
の上金型で圧縮成形するゴムシートの成形装置であっ
て、成形装置上部の昇降自在の可動板の下部に、下面が
傾斜した可動斜カムを左右方向へ移動自在に設け、この
可動斜カムの下方に、下部に上金型を固設すると共に上
面が可動斜カムと同じ勾配で傾斜した固定斜カムを、可
動斜カムとそれぞれの傾斜面において接合させるべく、
可動板と間隔調整自在に設けて、型締め前における上金
型の位置を昇降自在にすると共に、上金型を熱板ガイド
と摺動自在に設けて、型締め時にゴムシート素材を上金
型のコアで圧縮自在としたことを特徴とするものであ
る。SUMMARY OF THE INVENTION The present invention is directed to a direct hydraulic mold clamping.
The unvulcanized rubber sheet material which is provided on the lower die of the device, its
It is a rubber sheet molding device that is compression molded with the upper mold of
The lower surface of the movable plate above and below the molding device
A slanting movable slant cam is provided so that it can move in the left and right directions.
Below the movable swash cam, the upper as well as fixedly provided to the upper mold to the lower
A fixed oblique cam whose surface is inclined at the same slope as the movable oblique cam
In order to join it with the dynamic tilt cam on each slope,
A movable plate and a space that can be freely adjusted to allow the upper metal to be attached before mold clamping.
The mold can be moved up and down, and the upper mold is heated by a hot plate guide.
It is slidable with the rubber sheet material when the mold is clamped
It is characterized by being freely compressible with a mold core .
【０００５】以下、本発明の装置の一実施態様を例示し
た図１〜図２によって詳細に説明する。本発明のゴムシ
ートの成形装置は、例えば図１（ａ）に示すような、直
油圧型締め装置（下金型固定、上金型下降型プレス）に
よるもので、ガイドシャフト19の上部に、その移動につ
れて昇降する可動板１が取り付けられている。 また、こ
の可動板１の上部に２個の油圧シリンダー２ａ、２ｂを
取り付け、可動板１の下方に一方の油圧シリンダー２ａ
により下降する中間板３を設け、この下に他方の油圧シ
リンダー２ｂにより上昇する上部熱板４と上金型５を取
り付ける。中間板３の上部には上面が傾斜した台形体状
の固定斜カム６を取り付ける。また、可動板１の下部に
は固定斜カム６の上面と同勾配で傾斜した下面を備えた
可動斜カム７を取り付ける。An embodiment of the device of the present invention will be exemplified below .
It will be described in detail by FIGS 2. Molding apparatus of the rubber sheet of the present invention, for example as shown in FIG. 1 (a), due to linear hydraulic clamping device (lower mold stationary, upper mold downward-pressing), the upper portion of the guide shaft 19, To move
A movable plate 1 that moves up and down is attached. Also,
2 hydraulic cylinders 2a, 2b on top of the movable plate 1 of
One hydraulic cylinder 2a below the movable plate 1
The intermediate plate 3 for Fall provided by the other hydraulic sheet thereunder
The upper heating plate 4 and the upper die 5 which are raised by the linder 2b are attached. A trapezoidal fixed oblique cam 6 having an inclined upper surface is attached to the upper part of the intermediate plate 3. Further, the lower part of the movable plate 1 attached to <br/> movable swash cam 7 having a top surface and a bottom surface that is inclined at the same gradient of fixed swash cam 6.
【０００６】このように、固定、可動両斜カム６、７は
一面が傾斜した１組の台形体からなり、その傾斜面同士
を向かい合わせて圧接し、圧接面を互いに摺動させるこ
とで、固定、可動両斜カム６、７の総厚さ（図の上下方
向での幅）を調節するものであるから、可動斜カム７を
左右に移動させることにより、可動板１と中間板３、す
なわち中間板３と基板18との間隔を微細に変更・調整す
ることができる。可動斜カム７は、ボールねじ８、ウォ
ーム減速機９及びサーボモータ10の作動によって、可動
板１の下面に設けられたスライド式案内ガイド17内を横
方向に移動し、固定、可動両斜カム６、７の総厚さを調
節する。移動量は得ようとするゴムシートの厚さにより
適宜定められるが、精度対コストの観点から通常最大 1
00mm位が適当である。[0006] Thus, the fixed, movable both swash cam 6 and 7 consists of a set of trapezoid body with one side inclined, pressed face-to-face with the inclined faces, by mutually sliding the contact face, Total thickness of both fixed and movable diagonal cams 6 and 7 (upper and lower parts of the figure)
The width of the movable diagonal cam 7 is adjusted.
By moving to the left and right , the movable plate 1 and the intermediate plate 3 ,
That is, the distance between the intermediate plate 3 and the substrate 18 can be finely changed and adjusted . Movable swash cam 7, a ball screw 8, by operation of the U O <br/> over beam reducer 9 and the servo motor 10, the movable
The total thickness of the fixed and movable both oblique cams 6 and 7 is adjusted by moving laterally in a slide guide 17 provided on the lower surface of the plate 1 . The amount of movement is appropriately determined according to the thickness of the rubber sheet to be obtained, but usually it is a maximum of 1
00mm position is appropriate.
【０００７】図２（ａ）に示すように、サーボモータ10
により可動斜カム７を左端に移動させたときに、固定、
可動両斜カム６、７の総厚さが最小で、中間板３と基板
18との間隔、すなわち金型に受け入れられる素材ゴムシ
ートの厚さが最大となり、図２（ｃ）に示すように、可
動斜カム７を右端に移動させたときに、固定、可動両斜
カム６、７の総厚さが最大で、中間板３と基板18との間
隔、すなわち金型に受け入れられる素材ゴムシートの厚
さが最小となる。例えば、固定、可動両斜カム６、７の
斜面の角度をθとすると、可動斜カム７を図２（ａ）の
場合より右へＡmm移動させた場合、固定、可動両斜カム
６、７の総厚さはＡ tanθだけ厚くなり、その厚さ分だ
け中間板３と基板18との間隔、すなわち金型に受け入れ
られる素材ゴムシートの厚さが薄くなる。一方、基板18
の上面には加硫時間の短縮に有効な下部熱板14を介して
下金型15がある。図１（ｂ）、（ｃ）に詳細に示すよう
に、上金型５の下面にはコア11およびガイドピン13が固
設され、下金型15にはガイドピン13により上金型５を摺
動自在に保持すると共に、上下両金型５、15の側方を区
画する熱板ガイド部12が設けられている。なお、図中の
20は油圧駆動ベース板、21は油圧タンクである。 As shown in FIG . 2A, the servo motor 10
When moving the movable swash cam 7 at the left end by a fixed,
The total thickness of the movable bilateral cams 6 and 7 is minimum, and the intermediate plate 3 and the substrate are
The distance from 18 is the maximum, that is , the thickness of the material rubber sheet that can be received by the mold becomes maximum, and as shown in FIG. 2 (c), when the movable oblique cam 7 is moved to the right end, it is fixed or movable. The total thickness of 6 and 7 is the maximum between the intermediate plate 3 and the substrate 18.
The distance, that is, the thickness of the raw rubber sheet received in the mold is minimized. For example, when the angle of the slopes of the fixed and movable oblique cams 6 and 7 is θ, when the movable oblique cam 7 is moved to the right by A mm compared to the case of FIG. 2A, the fixed and movable oblique cams 6 and 7 are moved. the total thickness of Ri as thick as a tanθ, but that the thickness of
The distance between the intermediate plate 3 and the base plate 18, that is, it is received in the mold.
Material thickness of the rubber sheet to be is that a thin. Meanwhile, the substrate 18
Through the lower heating plate 14 which is effective for shortening the vulcanization time on the upper surface of
There is a lower mold 15. As shown in detail in FIGS. 1 (b) and 1 (c)
In addition, the core 11 and the guide pin 13 are fixed on the lower surface of the upper mold 5.
The upper die 5 is slid on the lower die 15 by the guide pin 13
While holding it movably, separate the upper and lower dies 5, 15 sideways.
A hot plate guide section 12 is provided. In addition, in the figure
20 is a hydraulic drive base plate, and 21 is a hydraulic tank.
【０００８】上記のようにして、基板18に対する中間板
３の位置を設定した後、直油圧型締め装置を作動する
と、ガイドシャフト19の移動につれて可動板１が下降す
る。その際、可動板１、可動斜カム７、固定斜カム６、
中間板３、上部熱板４および上金型５は、油圧シリンダ
ー２ａ、２ｂに保持され一体となっているため、可動板
１と共に下降する。下金型15、上金型５のコア11および
熱板ガイド部12に囲まれた金型内に、未加硫のゴムシー
ト素材16が装入されていれば、上金型５に固定されたガ
イドピン13が熱板ガイド部12に導かれて下降し下金型15
に接触することで、未加硫のゴムシート素材16を金型内
に閉じ込める。なお、コア11と熱板ガイド部12との間隙
は0.05mm以下に設定されている。可動板１は求めるゴム
シートの厚さに対応する位置まで達した時点で下降を停
止し、未加硫のゴムシート素材に対し均等な加圧を付与
しながら加硫、成形を行う。 本成形装置における直油圧
型締め装置としては、通常50〜 150トンプレスが用いら
れるが、ゴムシート面の平滑化、装置のコンパクト化を
考慮すると70〜 100トンプレスが適当である。As described above, the intermediate plate for the substrate 18
After setting the position of 3, activate the direct hydraulic mold clamping device.
And the movable plate 1 descends as the guide shaft 19 moves.
It At that time, the movable plate 1, the movable oblique cam 7, the fixed oblique cam 6,
Intermediate plate 3, the upper heat plate 4 and the upper mold 5, since the integrally held hydraulic cylinders 2 a, to 2b, lowered to the movable plate 1 and co. Lower mold 15, core 11 of upper mold 5 and
An unvulcanized rubber sheet is placed in the mold surrounded by the hot plate guide 12.
If the base material 16 is loaded, the guide pin 13 fixed to the upper mold 5 is guided to the hot plate guide portion 12 and descends to lower the mold 15.
Touching the at, Ru confined rubber sheet material 16 of unvulcanized into the mold. Incidentally, the gap between the core 11 and the hot plate guide portion 12 is set to 0.05mm or less. The movable plate 1 is the desired rubber
The descent is stopped when the position corresponding to the sheet thickness is reached.
Stop and apply even pressure to the unvulcanized rubber sheet material
While performing vulcanization and molding. As the direct hydraulic mold clamping device in this molding device , a 50 to 150 ton press is usually used, but a 70 to 100 ton press is suitable considering the smoothness of the rubber sheet surface and the compactness of the device.
【０００９】[0009]
【作用】つぎに本発明のゴムシートの成形装置の作用を
説明する。 １）油圧シリンダー２ａにより固定斜カム６および中間
板３を下降させ、固定斜カム６を可動斜カム７より分離
させ、可動斜カム７を移動しやすくする［図２（ｂ）参
照］。 ２）サーボモータ10およびウオーム減速機９により可動
斜カム７を、図２（ａ）の総厚さが最小の位置より右方
へＡmm移動させる。この場合、可動斜カム７は１μｍ単
位で移動可能である。 ３）油圧シリンダー２ｂにより上部熱板４および上金型
５を上昇させ、固定斜カム６を可動斜カム７に押し付け
ると、可動板１と中間板３の間隔はＡ tanθmmだけ大き
くなり、それにつれて中間板３と基板18との間隔が狭ま
って成形可能なゴムシート素材の厚さがＡ tanθmmだけ
薄くなる［図２（ｃ）参照］。 ４）直油圧型締め装置により可動板１を下降させると、
それに伴い中間板３、上部熱板４および上金型５も降下
し、ガイドピン13が下金型15に接触することで、熱板ガ
イド部12とコア11により未加硫のゴムシート素材16を金
型内に封じ込め、さらに求める厚さに対応する位置まで
上金型のコア11が下がったところで、未加硫のゴムシー
ト素材16の加圧を維持しながら、加硫、成形する。SUMMARY OF will be described the operation of the molding apparatus of the rubber sheet of the present invention. 1) The fixed oblique cam 6 and the intermediate plate 3 are lowered by the hydraulic cylinder 2a to separate the fixed oblique cam 6 from the movable oblique cam 7 so that the movable oblique cam 7 can be easily moved [see FIG. 2 (b) ] . /> Teru ] . 2) Move the movable oblique cam 7 by the servo motor 10 and the worm reducer 9 to the right of the position where the total thickness in FIG.
Move to A mm . In this case , the movable oblique cam 7 can move in units of 1 μm. 3) Hydraulic cylinder 2 b is used to heat upper heating plate 4 and upper mold
5 is raised and the fixed oblique cam 6 is pressed against the movable oblique cam 7, the distance between the movable plate 1 and the intermediate plate 3 increases by A tan θmm, and the interval between the intermediate plate 3 and the substrate 18 decreases accordingly.
Thickness of the molded rubber sheet material is thinned by A Tanshitamm I [FIG 2 (c) reference. 4) When the movable plate 1 is lowered by the direct hydraulic mold clamping device,
Intermediate plate 3 with it, also drops upper heating plate 4 and the upper mold 5, by the guide pin 13 contacts the lower die 15, by the heat plate guide portion 12 and the core 11 of the unvulcanized rubber sheet material 16 containment in the mold, to a position corresponding to the further thickness for obtaining
When the core 11 of the upper mold is lowered,
The vulcanization and molding are performed while maintaining the pressurization of the material 16 .
【００１０】[0010]
【実施例】本発明のゴムシートの成形装置により、シリ
コーンゴム SS-20（信越化学工業社製、商品名）を、温
度 130〜 160℃、時間１分30秒で成形したところ、バリ
がなく、厚さムラが10μｍ以内の平滑性に優れた、縦 3
00mm×横 300mm、厚さ 1.5mmと 0.5mmのゴムシートを交
互に得ることができた。The molding apparatus of the rubber sheet EXAMPLES present invention, the silicone rubber SS-20 (Shin-Etsu Chemical Co., Ltd., trade name), temperature 130 to 160 ° C., was molded at time 1 minute 30 seconds, burrs without , Vertical with excellent smoothness with thickness unevenness within 10 μm 3
It was possible to alternately obtain rubber sheets of 00 mm x width 300 mm, thickness 1.5 mm and 0.5 mm.
【００１１】[0011]
【発明の効果】１）可動斜カムの移動を、サーボモータ
とウオーム減速機の組み合わせにより１μｍ単位で設定
することが可能で、金型の仕上げ状態、組み込みを考慮
しても、ゴムシートの厚さを10μｍ単位で設定してプレ
スすることは容易である。またゴムシートの平滑度はシ
ート厚に対して50μｍ以内となり、品質上安定した均一
な厚さのシートの製造ができる。 ２）ゴムシート素材の厚さが異なっても、金型の交換を
必要とせず、可動斜カムを所定量動かすだけで、任意の
厚さのゴムシートにプレス成形できる。また品種替えの
際も、金型の昇温時間を必要とせず、リードタイムが短
縮され、製造量を増加することができる。 ３） 0.3mm〜10.0mmまでの厚さのゴムシートが連続ある
いはランダムに容易にプレス成形できるので、多品種少
量のゴムシートの製造が容易にできる。 ４）ゴムシートの成形厚さ毎の金型の製作が不要にな
り、またバリなし成形を行うことによりコストダウンが
できる。EFFECTS OF THE INVENTION 1) The movement of the movable oblique cam can be set in units of 1 μm by a combination of a servo motor and a worm speed reducer. It is easy to set the thickness in units of 10 μm and press. The smoothness of the rubber sheet becomes less 50μm to a sheet thickness, Ru can manufacture sheets of uniform thickness that stable quality. 2) Even if the thickness of the rubber sheet material is different , replace the mold
It is not necessary and can be press-molded into a rubber sheet having an arbitrary thickness simply by moving the movable oblique cam by a predetermined amount. Also when varieties replacement, without requiring a heating time of the mold, lead time is shortened, Ru can increase the production volume. 3) Since a rubber sheet having a thickness of 0.3 mm to 10.0 mm can be easily and continuously press-molded, it is possible to easily manufacture a large number of different types of rubber sheets. 4) It is not necessary to manufacture a mold for each molding thickness of the rubber sheet, and cost reduction can be achieved by performing burr-free molding.
【図１】本発明のゴムシートの成形装置に係り、（ａ）
は概略正面図、（ｂ）および（ｃ）は金型部分の動作説
明図である。FIG. 1 relates to a rubber sheet molding apparatus of the present invention, (a)
Is a schematic front view, and (b) and (c) are operation explanatory views of a mold part .
【図２】本発明のゴムシートの成形装置に係り、
（ａ），（ｂ），（ｃ）は斜カムの動作説明図である。FIG. 2A rubber sheet molding apparatus according to the present invention,
(A), (b), (c) is operation | movement explanatory drawing of a diagonal cam.
１‥可動板、 ２ａ、２ｂ‥油圧シリ
ンダー、 ３‥中間板、 ４‥上部熱
板、 ５‥上金型、 ６‥固定斜カ
ム、 ７‥可動斜カム、 ８‥ボールね
じ、 ９‥ウォーム減速機、 10‥サーボモ
ータ、 11‥コア、 12‥熱板ガイ
ド部、 13‥ガイドピン、 14‥下部熱
板、 15‥下金型、 16‥未加硫の
ゴムシート素材、 17‥スライド式案内ガイド、 18‥基板、 19‥ガイドシャフト、 20‥油圧駆動
ベース板、 21‥油圧タンク。 1 ... Movable plate, 2a, 2b ... Hydraulic cylinder, 3 ... Intermediate plate, 4 ... Upper heating plate, 5 ... Upper mold, 6 ... Fixed oblique cam, 7 ... Movable oblique cam, 8 ... Ball screw, 9 ... C O over beam reducer, 10 ‥ servo motor, 11 ‥ core, 12 ‥ hot plate guide portion, 13 ‥ guide pins, 14 ‥ lower heat
Plate, 15 ‥ lower mold, 16 ‥ unvulcanized <br/> rubber sheet material, 17 ‥ sliding guides, 18 ‥ substrate, 19 ‥ guide shaft, 20 ‥ hydraulic drive
Base plate, 21 ... hydraulic tank.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 平１−156911（ＪＰ，Ｕ) 実開 昭60−166519（ＪＰ，Ｕ) 実開 昭61−172693（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Flat 1-156911 (JP, U) Live 601-166519 (JP, U) Live 61-172693 (JP, U)
Claims (1)
硫のゴムシート素材を、その上金型で圧縮成形するゴム
シートの成形装置であって、成形装置上部の昇降自在の
可動板の下部に下面が傾斜した可動斜カムを左右方向へ
移動自在に設け、この可動斜カムの下方に、下部に上金
型を固設すると共に上面が可動斜カムと同じ勾配で傾斜
した固定斜カムを、可動斜カムとそれぞれの傾斜面にお
いて接合させるべく、可動板と間隔調整自在に設けて、
型締め前における上金型の位置を昇降自在にすると共
に、上金型を熱板ガイドと摺動自在に設けて、型締め時
にゴムシート素材を上金型のコアで圧縮自在としたこと
を特徴とするゴムシートの成形装置。The method according to claim 1 unvulcanized rubber sheet material which is provided on the lower die straight hydraulic mold clamping device, a molding device of the rubber sheet to compression molding at its upper die, vertically movable in the molding device top of
A movable oblique cam with a lower surface inclined to the bottom of the movable plate in the left-right direction
It is provided so that it can move freely.
Upper surface inclined at the same gradient as the movable swash cam while fixedly provided a mold
Install the fixed oblique cam on the movable oblique cam and each inclined surface.
In order to be joined together, it is possible to adjust the gap with the movable plate ,
It is common to make the position of the upper mold up and down before clamping.
At the time of mold clamping, the upper mold is slidably mounted on the hot plate guide.
A rubber sheet forming apparatus characterized in that a rubber sheet material is freely compressed by an upper mold core .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4040199A JPH0832421B2 (en) | 1992-01-30 | 1992-01-30 | Rubber sheet molding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4040199A JPH0832421B2 (en) | 1992-01-30 | 1992-01-30 | Rubber sheet molding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0639867A JPH0639867A (en) | 1994-02-15 |
| JPH0832421B2 true JPH0832421B2 (en) | 1996-03-29 |
Family
ID=12574118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4040199A Expired - Lifetime JPH0832421B2 (en) | 1992-01-30 | 1992-01-30 | Rubber sheet molding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0832421B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101139261B1 (en) * | 2010-03-10 | 2012-05-15 | 티에스테크놀로지 주식회사 | Molding apparatus for manufacturing semi-conductor package |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60166519U (en) * | 1984-04-12 | 1985-11-05 | 有限会社 川尻油圧機製作所 | Press machine block type clamping device |
| JPS61172693U (en) * | 1985-04-12 | 1986-10-27 | ||
| JPH069793Y2 (en) * | 1988-04-21 | 1994-03-16 | 株式会社山城精機製作所 | Guide device for movable mold plate in horizontal mold device |
-
1992
- 1992-01-30 JP JP4040199A patent/JPH0832421B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0639867A (en) | 1994-02-15 |
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