JPH0218009A - Controlling device of mold thickness - Google Patents

Controlling device of mold thickness

Info

Publication number
JPH0218009A
JPH0218009A JP16775188A JP16775188A JPH0218009A JP H0218009 A JPH0218009 A JP H0218009A JP 16775188 A JP16775188 A JP 16775188A JP 16775188 A JP16775188 A JP 16775188A JP H0218009 A JPH0218009 A JP H0218009A
Authority
JP
Japan
Prior art keywords
die plate
mold
fixed
ram
tie bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP16775188A
Other languages
Japanese (ja)
Other versions
JP2511111B2 (en
Inventor
Yuki Kushibe
櫛部 悠記
Hiroshi Sato
洋 佐藤
Mitsuo Iwamoto
岩本 光郎
Saburo Fujita
三郎 藤田
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP16775188A priority Critical patent/JP2511111B2/en
Publication of JPH0218009A publication Critical patent/JPH0218009A/en
Application granted granted Critical
Publication of JP2511111B2 publication Critical patent/JP2511111B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/64Mould opening, closing or clamping devices
    • B29C45/67Mould opening, closing or clamping devices hydraulic
    • B29C45/6707Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement
    • B29C45/6714Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement using a separate element transmitting the mould clamping force from the clamping cylinder to the mould
    • B29C45/6728Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement using a separate element transmitting the mould clamping force from the clamping cylinder to the mould the separate element consisting of coupling rods
    • 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
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/1751Adjustment means allowing the use of moulds of different thicknesses

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE:To easily realize positional control in response to the shifting of a position, which is developed by the change of the mold thickness by a method wherein a screw is provided at the tip of each tie-bar, which is fixed to a movable die plate and each positioning sprocket is axially shifted so as to control the position of each half nut. CONSTITUTION:The engaging position of a screw thread is controlled by controlling the positions of respective half nuts 180 through a chain 195 by means of sprockets 190, on the inner surface of each of which a thread engaging with a screw stock attached on each packing gland 176 is machined. Further, a pulse motor or the like is employed for the rotation of the sprockets 190. The mold thickness at mold close is automatically measured with a linear scale or the like and computed by the number of rotations of the pulse motor so as to operate the amount of the shifting of the engagement of the screw in order to calculate the correction amount and to shift the sprockets to either direction only by the correction amount. Next, each ram 162 is retreated by sending pressure oil to the oil chamber 161B of the ram 162 so as to stop the ram 162 by abutting the ram 162 against the stopper face of the sprocket 190. At this time, the half nut 180 is pushed against the ram 162 by a spring 179 at all times, resulting in completing the controlling of the mold thickness.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は射出成形機等に適用される型厚調整装置に関す
るものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a mold thickness adjusting device applied to an injection molding machine or the like.

(従来の技術) 第6図は従来の型締装置を示し、60は支持フレームを
示し、この支持フレーム60の一端部上には、固定金型
62を取付けた固定ダイプレート64が固定され、また
支持フレーム60の他端上には、前記固定ダイプレート
64と対向して移動金型66を取付けた移動ダイプレー
ト68が摺動可能に載置されている。また固定ダイプレ
ート64には、複数(本例では4基)の油圧シリンダ7
0を設けて、これら油圧シリンダ70の内部ピストン7
2の移動ダイプレート68側の面よりそれぞれタイバー
74を移動ダイプレート68方向に延設する。
(Prior Art) FIG. 6 shows a conventional mold clamping device, and 60 indicates a support frame. On one end of this support frame 60, a fixed die plate 64 to which a fixed mold 62 is attached is fixed. Further, on the other end of the support frame 60, a movable die plate 68 to which a movable die 66 is attached is slidably mounted so as to face the fixed die plate 64. Further, the fixed die plate 64 includes a plurality of (four in this example) hydraulic cylinders 7.
0, the internal piston 7 of these hydraulic cylinders 70
Tie bars 74 are provided extending in the direction of the movable die plate 68 from the two movable die plate 68 side surfaces.

また固定ダイプレート64の一側部には、ブーストシリ
ンダ76を固定し、このブーストシリンダ76の内部ピ
ストン7Bと接続されるロッド80の先端部を移動ダイ
プレート68の一側部に適宜固定する。
Further, a boost cylinder 76 is fixed to one side of the fixed die plate 64, and the tip of a rod 80 connected to the internal piston 7B of the boost cylinder 76 is appropriately fixed to one side of the movable die plate 68.

一方タイパー74の先端部にガイド部材として前記タイ
バー74より細径のガイドロッド82を延設する。この
ため移動ダイプレート68にそれぞれタイバー74を挿
通ずる挿通孔84を設けると共に、この移動ダイプレー
ト68の移動金型66を取付けた面とは反対側面に、前
記挿通孔84の軸心に対し略直角方向に移動するハーフ
ナツト86を設ける。また、このハーフナツト86と隣
接して、前記タイバー74の先端部に突設されたガイド
ロッド82を挿通し、かつこのガイドロッド82とタイ
バー74の先端部との境界部分に形成される段部88を
係止し得るストッパ90を設け、これを移動ダイプレー
ト68に対し適宜固定する。また、タイバー74の先端
部外周には、前記ハーフナソ)86と噛合するねじ部9
2を刻設する。更に前記ガイドロッド82の先端部には
、必要に応して型締め操作に際し各タイバー74の移動
を同期させる目的で連結部材94を結合させることもで
きる。
On the other hand, a guide rod 82 having a smaller diameter than the tie bar 74 is provided as a guide member at the tip of the tie bar 74 . For this purpose, each movable die plate 68 is provided with an insertion hole 84 through which the tie bar 74 is inserted, and the movable die plate 68 is provided with an insertion hole 84 approximately relative to the axis of the insertion hole 84 on the side opposite to the surface on which the movable mold 66 is attached. A half nut 86 is provided that moves in the right angle direction. Further, adjacent to the half nut 86, a step portion 88 is formed at the boundary between the guide rod 82 and the tip of the tie bar 74, through which the guide rod 82 is inserted. A stopper 90 capable of locking is provided, and this is appropriately fixed to the movable die plate 68. Further, on the outer periphery of the tip of the tie bar 74, there is a threaded portion 9 that engages with the half naso) 86.
2 is engraved. Further, a connecting member 94 can be coupled to the tip of the guide rod 82, if necessary, for the purpose of synchronizing the movement of each tie bar 74 during a mold clamping operation.

このように構成した前記従来例における型締装置では、
型閉じに際してブーストシリンダ76の一方の油室96
に圧油を供給することにより、移動ダイプレート68を
固定ダイプレート64側へ移動する。この時タイバー7
4は、その先端部に突設したガイドロッド82がストッ
パ90を摺動しながら移動し、タイバー74の先端部は
移動ダイプレート68の挿通孔84内へ円滑に挿入され
る。
In the mold clamping device in the conventional example configured in this way,
When closing the mold, one oil chamber 96 of the boost cylinder 76
By supplying pressure oil to the movable die plate 68, the movable die plate 68 is moved toward the fixed die plate 64 side. At this time tie bar 7
The guide rod 82 protruding from the tip of the tie bar 4 moves while sliding on the stopper 90, and the tip of the tie bar 74 is smoothly inserted into the insertion hole 84 of the movable die plate 68.

次いで固定金型62と移動金型66との型閉じが完了す
る直前において、タイバー74の先端部、即ちガイドロ
ッド82との境界部に形成された段部88がストッパ9
0に係止する(第7図)。この時移動ダイプレート68
に設けたハーフナツト86を移動手段98により挿通孔
84の軸心と略直角方向に移動させれば、これをタイハ
ーフ4に形成したねじ部92に噛合させることができる
Next, just before the mold closing of the fixed mold 62 and the movable mold 66 is completed, the step 88 formed at the tip of the tie bar 74, that is, at the boundary with the guide rod 82, closes to the stopper 9.
0 (Fig. 7). At this time, the moving die plate 68
By moving the half nut 86 provided on the tie half 86 in a direction substantially perpendicular to the axis of the insertion hole 84 using the moving means 98, it can be brought into engagement with the threaded portion 92 formed on the tie half 4.

この結果タイバー74は、移動ダイプレート68との結
合固定を達成することができる。その後固定ダイプレー
ト64に設けた油圧シリンダ70の一方の油室100に
圧油を供給すれば、タイバー74を直接移動させること
によって移動ダイプレート6Bを固定ダイプレート64
側へ移動させて、固定金型62と移動金型66との型締
めを達成することができる。
As a result, the tie bar 74 can be fixedly coupled to the movable die plate 68. After that, if pressure oil is supplied to one oil chamber 100 of the hydraulic cylinder 70 provided in the fixed die plate 64, the movable die plate 6B is moved to the fixed die plate 64 by directly moving the tie bar 74.
By moving it to the side, the fixed mold 62 and the movable mold 66 can be clamped.

また金型の交換に際し、タイバー74に対する移動ダイ
プレート68の結合固定位置を金型の厚さに応じて調整
する、所謂型厚調整を行なうには、ストッパ90の作用
位置を変更することにより、実現することができる。例
えば第8図に示すように、型厚調整手段としてのストッ
パを構成することができる。第8図に示す例は、ガイド
ロッド82に対しその軸心と略直角方向に進退自在にス
トッパ片102を設けたことを特徴とする。
Furthermore, when replacing the mold, in order to adjust the fixed position of the movable die plate 68 relative to the tie bar 74 according to the thickness of the mold, so-called mold thickness adjustment, by changing the operating position of the stopper 90, It can be realized. For example, as shown in FIG. 8, a stopper can be configured as a mold thickness adjusting means. The example shown in FIG. 8 is characterized in that a stopper piece 102 is provided on the guide rod 82 so that it can move forward and backward in a direction substantially perpendicular to the axis of the guide rod 82.

この場合ストッパ片102は、ガイドロッド82に摺接
し得る略半円形の切欠部104を有し、ストッパ片10
2の上端を支持枠体106に固定した圧力シリンダlO
8のピストンロンド11Oに固着する。
In this case, the stopper piece 102 has a substantially semicircular notch 104 that can come into sliding contact with the guide rod 82.
A pressure cylinder lO whose upper end of 2 is fixed to the support frame 106
It is fixed to the piston rond 11O of No.8.

そしてこのように構成されるストッパ片102をガイド
ロッド82の軸方向に所定間隔離間して共通の支持枠体
106に複数設置し、この支持枠体106を移動ダイプ
レート68に取付ける。このように複数のストッパ片1
02をガイドロッド82に対して構成配置することによ
り、金型の厚さに応じていずれかのストッパ片102を
自動制御操作によりガイドロッド82に対し前進させて
、タイバー74の先端部の位置決めを適正に行うことが
できるようになっている。
A plurality of stopper pieces 102 configured as described above are installed on a common support frame 106 at predetermined intervals in the axial direction of the guide rod 82, and this support frame 106 is attached to the movable die plate 68. In this way, multiple stopper pieces 1
02 relative to the guide rod 82, one of the stopper pieces 102 can be moved forward relative to the guide rod 82 by automatic control operation depending on the thickness of the mold, and the tip of the tie bar 74 can be positioned. It is now possible to do it properly.

(発明が解決しようとする課題) しかしながら前記第8図に示す型厚調整装置は、所定間
隔離間して複数設置したストッパ片102をガイドロッ
ド82に対して構成配置し、金型の厚さに応じて、何れ
かのストッパ片102を自動制御装置によりガイドロッ
ド82に対し前進させて、タイバー74の先端部の位置
決めを行なうものである。従って所定寸法ずつ金型が変
わる場合はこれでよいとしても、任意の金型厚さに対し
ては、この方法だけでは対応出来ない。
(Problem to be Solved by the Invention) However, the mold thickness adjusting device shown in FIG. Accordingly, one of the stopper pieces 102 is moved forward relative to the guide rod 82 by an automatic control device to position the tip of the tie bar 74. Therefore, although this method may be sufficient when the mold is changed by a predetermined size, this method alone cannot cope with an arbitrary mold thickness.

また金型厚さが広い範囲で変わる場合に対応できるよう
にしようとすれば、それだけ数多くのストッパ片が必要
となるなどの問題があった。
Furthermore, if the mold thickness were to vary over a wide range, a large number of stopper pieces would be required.

本発明は前記従来の課題を解決するために提案されたも
のである。
The present invention has been proposed to solve the above-mentioned conventional problems.

(課題を解決するための手段) このため本発明は、固定金型を保持する固定ダイプレー
トと、移動金型を保持する移動ダイプレートと、同移動
ダイプレートを固定ダイプレートに対し後退動作させる
手段と、前記移動ダイプレートが固定ダイプレートに接
近して固定金型と移動金型が型閉じした後、固定ダイプ
レートと結合固定されて型締めを行なうタイバーとから
なる型締装置において、同タイバーは前記移動ダイプレ
ートに固定され、その固定端の反対側に長いねじ部を有
し、前記固定ダイプレートの反金型取付面側にはクイバ
ー軸心に対しほぼ直角に開閉可能なハーフナツトが設け
られ、同ハーフナツトの噛合い位置調整は、スプロケッ
トを回転させて同スプロケット自体をストッパとして使
うことにより行なうようにしたもので、これを課題解決
のための手段とするものである。
(Means for Solving the Problems) Therefore, the present invention provides a fixed die plate that holds a fixed mold, a movable die plate that holds a movable mold, and a movement of the movable die plate backward relative to the fixed die plate. and a tie bar that is coupled and fixed to the fixed die plate to clamp the mold after the movable die plate approaches the fixed die plate and the fixed mold and the movable mold are closed. The tie bar is fixed to the movable die plate, has a long threaded portion on the opposite side of the fixed end thereof, and has a half nut on the side of the stationary die plate opposite to the die mounting surface that can be opened and closed approximately at right angles to the quiver axis. The meshing position of the half nut is adjusted by rotating the sprocket and using the sprocket itself as a stopper, which is a means to solve the problem.

(作用) 移動ダイプレートに固定したタイバーの先端にねじを設
け、同ねじは金型厚さが変わってもハーフナツトと噛合
える十分な長さを持っており、このハーフナツトの位置
出しとして使うスプロケットは、内面にねじが切っであ
る為、回転すれば軸方向に移動し、ハーフナツトの位置
調整が出来る。また金型厚さの変更により生じるタイバ
ーねじと、ハーフナツトねじの噛合い位置のずれに応じ
、自動制御でそのスプロケットを回転制御させれば容易
に位置制御が出来る。
(Function) A screw is installed at the tip of the tie bar fixed to the movable die plate, and the screw is long enough to engage with the half nut even if the mold thickness changes.The sprocket used to position the half nut is Since the inner surface is threaded, it moves in the axial direction when rotated, allowing the position of the half nut to be adjusted. Furthermore, the position can be easily controlled by automatically controlling the rotation of the sprocket in accordance with the deviation in the meshing position of the tie bar screw and half nut screw caused by a change in mold thickness.

(実施例) 以下本発明を図面の実施例に基づいて詳述すると、第1
図は本発明装置の1実施例を示し、図中150は木型締
装置を載置固定するベースであり、同ベース150の一
端には固定金型152を取付ける固定ダイプレート15
4が固定されている。
(Example) The present invention will be described in detail below based on the example of the drawings.
The figure shows one embodiment of the device of the present invention, and in the figure, 150 is a base on which a wooden mold clamping device is placed and fixed, and at one end of the base 150 is a fixed die plate 15 on which a fixed mold 152 is attached.
4 is fixed.

15日は移動ダイプレートで、その固定ダイプレー)1
54側には移動金型156が取付けられており、またそ
の脚部にはスライドシュー159が一体に取付けられ、
ベース150上に設けたガイドレール151に沿って、
前後進可能に載置されている。
The 15th is a moving die plate, and its fixed die plate) 1
A movable mold 156 is attached to the 54 side, and a slide shoe 159 is integrally attached to its leg.
Along the guide rail 151 provided on the base 150,
It is placed so that it can move forward and backward.

なお、移動グイプレー目58のガイド部はすべり摺動で
も、転勤型ガイドでもよく、更に空気又は磁力で浮上さ
せたものでも良い。
The guide portion of the movable guide 58 may be a sliding type guide, a transfer type guide, or may be floated by air or magnetic force.

また前記固定ダイプレート154の四隅には型閉後の型
締力を発生させる油圧シリンダ160が形成され、同油
圧シリンダ160には後述する如くラム162を挾んで
内部に油室161A、161Bが設けられている。ラム
162は第2図に拡大して示す如く、外周が大・中・小
径と多段に形成され、軸心にタイバー164の挿入孔1
74が貫通形成されており、型締昇圧時は前記一方の油
室161Aに圧油を送ることにより、第1図の右方向に
移動し、その先端部163をハーフナツト180に当接
させ、かつハーフナツト180がタイバー164と噛合
した状態でハーフナンド180を更に右方向に押して型
締力を発生させる。タイバー164はナツト165によ
り一端を移動ダイプレー) 15Bに固定されており、
同タイバー164の先端には、所定の長さにわたってね
じ部172が形成され、このねじ部172は型締時に固
定ダイプレー1−154の裏側に設けたハーフナラ目8
0と噛合う。
Furthermore, hydraulic cylinders 160 are formed at the four corners of the fixed die plate 154 to generate mold clamping force after the mold is closed, and oil chambers 161A and 161B are provided inside the hydraulic cylinders 160, sandwiching a ram 162 as described later. It is being As shown in an enlarged view in FIG. 2, the ram 162 has a multi-stage outer periphery with large, medium, and small diameters, and has an insertion hole 1 for a tie bar 164 at its axis.
74 is formed through the mold, and when pressurizing the mold clamp, by sending pressure oil to the one oil chamber 161A, it moves to the right in FIG. 1, brings its tip 163 into contact with the half nut 180, and With the half nut 180 engaged with the tie bar 164, the half nut 180 is further pushed to the right to generate mold clamping force. The tie bar 164 has one end fixed to the movable die plate 15B by a nut 165,
A threaded portion 172 is formed over a predetermined length at the tip of the tie bar 164, and this threaded portion 172 is connected to a half round hole 8 provided on the back side of the fixed die plate 1-154 during mold clamping.
meshes with 0.

166は固定ダイプレート154又は移動ダイプレート
158に取付けられた型開閉シリンダであって、移動グ
イプレー目58を前後進させるもので、型開閉シリンダ
166の口、ラド170の先端は、移動ダイプレー目5
8又は固定グイプレー目54に固定されている。175
.176は固定ダイプレート154の前記型締シリンダ
を構成する部分の前後に固設されるパツキン押えで、同
固定ダイプレート154裏面側のパツキン押え176に
は、ハーフナラ) 180を前後進可能に支持するガイ
ドバー177が固定されている。このガイドバー177
には、ナツトを2分割して対向させたハーフナツト18
0が、ブラケット178を介して摺動可能に支持され、
同ハーフナツト180はスプリング179により常にラ
ム162の先端部163に圧接するよう付勢されている
。また同時にラム162の端面163aもスプロケット
190のストッパ面190aに圧接されている。ハーフ
ナツト180はブラケット178に固定されたガイドバ
ー181に沿って図示しない開閉機構により左右に開閉
することができ、型締時には閉じてタイバー164のね
じ部172と噛合するようになっている。
Reference numeral 166 denotes a mold opening/closing cylinder attached to the fixed die plate 154 or the movable die plate 158, which moves the movable die plate 58 back and forth.
8 or fixed to the fixed guide eye 54. 175
.. Reference numeral 176 denotes a packing holder which is fixedly installed before and after the portion of the fixed die plate 154 that constitutes the mold clamping cylinder, and the packing holder 176 on the back side of the fixed die plate 154 supports a half lug 180 so as to be movable back and forth. A guide bar 177 is fixed. This guide bar 177
Half nut 18 is made by dividing a nut into two and facing each other.
0 is slidably supported via a bracket 178;
The half nut 180 is always urged by a spring 179 so as to come into pressure contact with the tip 163 of the ram 162. At the same time, the end surface 163a of the ram 162 is also pressed against the stopper surface 190a of the sprocket 190. The half nut 180 can be opened and closed from side to side along a guide bar 181 fixed to the bracket 178 by an opening/closing mechanism (not shown), and is closed and engaged with the threaded portion 172 of the tie bar 164 when the mold is clamped.

またパツキン押え176に取付けたねじ棒191には、
内面にねじが切られたスプロケソ)190が噛合ってお
り、同スプロケット190は図示しないステッピングモ
ータ等のチェーン駆動装置により、チェーン195を介
して第2図の矢印で示す方向に前後動する。即ち、ハー
フナンド180の位置を調整することにより、ねじ山の
噛合い位置を調整出来る。
In addition, the threaded rod 191 attached to the packing presser 176 has
A sprocket 190 with a thread cut on the inner surface is engaged with the sprocket 190, and the sprocket 190 is moved back and forth in the direction shown by the arrow in FIG. 2 via a chain 195 by a chain drive device such as a stepping motor (not shown). That is, by adjusting the position of the half nand 180, the engagement position of the screw threads can be adjusted.

次に作用を説明すると、金型厚さが変更となる金型交換
をした場合には、型厚を調整(ねじ噛合い補正)する必
要があるが、この場合の動作手順は以下の通りである。
Next, to explain the operation, when replacing a mold that changes the mold thickness, it is necessary to adjust the mold thickness (screw engagement correction).The operating procedure in this case is as follows. be.

先ず型厚設定スイッチ(図示しない)を入れる。First, turn on the mold thickness setting switch (not shown).

次に型開閉シリンダ166の油室168Aに圧油を送っ
て金型を密着させる(固定金型152と移動金型156
が係合した状態・−第4図)。またスプロケット190
の回転としてパルスモータ等を用い、型閉時の金型厚さ
をリニアスケール(図示しない)等により自動計測し、
これを前記モータ回転数を割り出して回転させ、ねじ噛
合いのずれ量をコンピュータで演算して補正量を算出す
る。
Next, pressure oil is sent to the oil chamber 168A of the mold opening/closing cylinder 166 to bring the molds into close contact (the fixed mold 152 and the movable mold 156
engaged state (Fig. 4). Also sprocket 190
A pulse motor or the like is used to rotate the mold, and the mold thickness when the mold is closed is automatically measured using a linear scale (not shown).
This is rotated by determining the motor rotational speed, and the amount of deviation in screw engagement is calculated by a computer to calculate the correction amount.

次にラム162の油室161Aに圧油を送って(この時
は低圧)ラム162を前進させ、スプロケット190の
ストッパ面190aとの接触を絶ち、前記補正量分のみ
何れかの方向へ回転移動させる(第3図)。
Next, pressurized oil is sent to the oil chamber 161A of the ram 162 (low pressure at this time) to move the ram 162 forward, break contact with the stopper surface 190a of the sprocket 190, and rotate in either direction by the amount of correction. (Figure 3).

次にラム162の油室161Bに圧油を送ってラム16
2を後退させ、スプロケット190のストッパ面190
aにラム162を当てて停止させる。この場合ハーフナ
ラ目80はスプリング179で常にラム162に押し付
けられている為、同ハーフナツト180の位置はスプロ
ケット190の位置で定まり、型厚調整が完了となる。
Next, pressure oil is sent to the oil chamber 161B of the ram 162, and the ram 16
2 and the stopper surface 190 of the sprocket 190
Apply the ram 162 to a and stop it. In this case, since the half nut 80 is always pressed against the ram 162 by the spring 179, the position of the half nut 180 is determined by the position of the sprocket 190, and mold thickness adjustment is completed.

(発明の効果) 以上詳細に説明した如く本発明は構成されているので、
タイバーねじを金型厚さ変更範囲に対応出来るよう長く
切り、ハーフナツトのねじとの山谷の若干のずれを補正
するのみで、任意の位置で噛合わせることが出来る。ま
たタイバーとハーフナツトの噛合い位置調整をスプロケ
ットを回転させて行なうためバラツキが無く、かつ同時
に出来る。一方補正量は金型厚さが分かればおのずと決
まり、従って金型厚さの読取り、型厚調整装置のスプロ
ケットの移動等全自動化も可能である。
(Effects of the Invention) Since the present invention is configured as explained in detail above,
By cutting the tie bar screw long enough to accommodate the range of mold thickness changes and correcting the slight deviation of the peaks and troughs with the half nut screw, it is possible to mesh at any position. In addition, since the engagement position of the tie bar and half nut is adjusted by rotating the sprocket, there is no variation and it can be done simultaneously. On the other hand, the amount of correction is determined automatically if the mold thickness is known, so it is possible to fully automate the reading of the mold thickness and the movement of the sprocket of the mold thickness adjustment device.

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

第1図は本発明の実施例を示す型厚調整装置の正面断面
図、第2図は第1図の型厚調整装置の要部の詳細図、第
3図は第2図における要部の詳細図、第4図は第1図と
作動状態を異にする正面断面図、第5図は第4図のC矢
視図、第6図は従来の型締装置の1例を示す平面断面図
、第7図は第6図と作動状態を異にする平面断面図、第
8図は第6図及び第7図の型締装置に使用する型厚調整
装置の側断面図である。 図の主要部分の説明 154−−一固定グイブレート 158−・−移動ダイブレート 16t−m−タイバー 166−型開閉シリンダ 172−・−ねじ部 1so−ハーフナツト 190・・−スプロケット 191・−・ねじ棒 第6図 第7団
FIG. 1 is a front sectional view of a mold thickness adjusting device showing an embodiment of the present invention, FIG. 2 is a detailed view of the main parts of the mold thickness adjusting device shown in FIG. 1, and FIG. 3 is a main part of the mold thickness adjusting device shown in FIG. Detailed view, FIG. 4 is a front sectional view showing a different operating state from FIG. 1, FIG. 5 is a view taken along arrow C in FIG. 4, and FIG. 6 is a plan sectional view showing an example of a conventional mold clamping device. FIG. 7 is a plan sectional view showing a different operating state from FIG. 6, and FIG. 8 is a side sectional view of the mold thickness adjusting device used in the mold clamping device of FIGS. 6 and 7. Explanation of the main parts of the figure 154--Fixed dive plate 158--Moving dive plate 16t-m-Tie bar 166-Type opening/closing cylinder 172--Threaded part 1so-Half nut 190--Sprocket 191--Threaded rod no. Figure 6 Group 7

Claims (1)

【特許請求の範囲】[Claims] 固定金型を保持する固定ダイプレートと、移動金型を保
持する移動ダイプレートと、同移動ダイプレートを固定
ダイプレートに対し後退動作させる手段と、前記移動ダ
イプレートが固定ダイプレートに接近して固定金型と移
動金型が型閉じした後、固定ダイプレートと結合固定さ
れて型締めを行なうタイバーとからなる型締装置におい
て、同タイバーは前記移動ダイプレートに固定され、そ
の固定端の反対側に長いねじ部を有し、前記固定ダイプ
レートの反金型取付面側にはタイバー軸心に対しほぼ直
角に開閉可能なハーフナットが設けられ、同ハーフナッ
トの噛合い位置調整は、スプロケットを回転させて同ス
プロケット自体をストッパとして使うことにより行なう
ことを特徴とする型厚調整装置。
a fixed die plate for holding a fixed die; a movable die plate for holding a movable die; means for moving the movable die plate backward relative to the fixed die plate; In a mold clamping device consisting of a fixed die plate and a tie bar that is fixedly connected to the fixed die plate and performs mold clamping after the fixed die and the movable die are closed, the tie bar is fixed to the movable die plate and the tie bar is fixed to the movable die plate. A half nut is provided on the side opposite to the mold mounting surface of the stationary die plate and can be opened and closed at almost right angles to the tie bar axis, and the meshing position of the half nut is adjusted using a sprocket. A mold thickness adjustment device characterized by rotating the sprocket and using the same sprocket itself as a stopper.
JP16775188A 1988-07-07 1988-07-07 Mold thickness adjusting device Expired - Fee Related JP2511111B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16775188A JP2511111B2 (en) 1988-07-07 1988-07-07 Mold thickness adjusting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16775188A JP2511111B2 (en) 1988-07-07 1988-07-07 Mold thickness adjusting device

Publications (2)

Publication Number Publication Date
JPH0218009A true JPH0218009A (en) 1990-01-22
JP2511111B2 JP2511111B2 (en) 1996-06-26

Family

ID=15855424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16775188A Expired - Fee Related JP2511111B2 (en) 1988-07-07 1988-07-07 Mold thickness adjusting device

Country Status (1)

Country Link
JP (1) JP2511111B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0993928A3 (en) * 1998-10-14 2000-10-18 Fischer-W. Müller Blasformtechnik GmbH Device for adapting a plastics processing machine, especially a blow moulding machine, to different mould sizes
US6203312B1 (en) 1998-03-23 2001-03-20 Industrias Romi, S.A. Clamping apparatus for a tiebarless injection moulding machine
EP1354689A1 (en) * 2002-04-18 2003-10-22 Sandretto Industrie S.P.A. Hydraulic clamping device for moulding machines
EP1382428A1 (en) * 2002-07-17 2004-01-21 Fanuc Ltd Mold thickness adjustment mechanism for injection molding machine
JP2016107306A (en) * 2014-12-08 2016-06-20 東芝機械株式会社 Clamping device and forming device
CN107900289A (en) * 2017-12-12 2018-04-13 重庆乐迪机车车辆配件有限公司 A kind of mould for being used to cast disk class multicolumn shaped cast part
JP2022142715A (en) * 2021-03-16 2022-09-30 株式会社日本製鋼所 Molding apparatus
US11780128B2 (en) 2021-03-16 2023-10-10 The Japan Steel Works, Ltd. Molding machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6203312B1 (en) 1998-03-23 2001-03-20 Industrias Romi, S.A. Clamping apparatus for a tiebarless injection moulding machine
EP0993928A3 (en) * 1998-10-14 2000-10-18 Fischer-W. Müller Blasformtechnik GmbH Device for adapting a plastics processing machine, especially a blow moulding machine, to different mould sizes
EP1354689A1 (en) * 2002-04-18 2003-10-22 Sandretto Industrie S.P.A. Hydraulic clamping device for moulding machines
US6945765B2 (en) 2002-04-18 2005-09-20 Sandretto Industrie S.P.A. Hydraulic clamping device for molding machines
EP1382428A1 (en) * 2002-07-17 2004-01-21 Fanuc Ltd Mold thickness adjustment mechanism for injection molding machine
US6960071B2 (en) 2002-07-17 2005-11-01 Fanuc Ltd Mold thickness adjustment mechanism for injection molding machine
JP2016107306A (en) * 2014-12-08 2016-06-20 東芝機械株式会社 Clamping device and forming device
US9469063B2 (en) 2014-12-08 2016-10-18 Toshiba Kikai Kabushiki Kaisha Clamping device and molding apparatus
CN107900289A (en) * 2017-12-12 2018-04-13 重庆乐迪机车车辆配件有限公司 A kind of mould for being used to cast disk class multicolumn shaped cast part
JP2022142715A (en) * 2021-03-16 2022-09-30 株式会社日本製鋼所 Molding apparatus
US11780128B2 (en) 2021-03-16 2023-10-10 The Japan Steel Works, Ltd. Molding machine

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