JPH0235653B2 - - Google Patents
Info
- Publication number
- JPH0235653B2 JPH0235653B2 JP58125115A JP12511583A JPH0235653B2 JP H0235653 B2 JPH0235653 B2 JP H0235653B2 JP 58125115 A JP58125115 A JP 58125115A JP 12511583 A JP12511583 A JP 12511583A JP H0235653 B2 JPH0235653 B2 JP H0235653B2
- Authority
- JP
- Japan
- Prior art keywords
- slide
- resin plate
- pressure
- press
- support device
- 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
- 239000011347 resin Substances 0.000 claims description 39
- 229920005989 resin Polymers 0.000 claims description 39
- 238000000465 moulding Methods 0.000 claims description 9
- 239000012778 molding material Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
- B29C51/082—Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Presses (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 本発明は、樹脂板のプレス成形方法に関する。[Detailed description of the invention] The present invention relates to a method for press molding a resin plate.
自動車のフロントパネル、ボデイパネル、フー
ド等を樹脂複合材で成形することは、軽量化や組
立て工数の低減等の著しい効果がある。しかし、
製造サイクルタイム面では、成形材料の速硬化が
非常に重要な問題であり、一方製品の品質面で
は、成形材料の均一加圧およびその再現性が重要
な問題であつた。 Molding automobile front panels, body panels, hoods, etc. from resin composite materials has significant effects such as weight reduction and assembly man-hour reduction. but,
In terms of manufacturing cycle time, rapid curing of the molding material is a very important issue, while in terms of product quality, uniform pressurization of the molding material and its reproducibility are important issues.
従来、この樹脂板のプレス成形にあつては、プ
レスブレーキ方式や油圧シリンダの連通による左
右同調制御が行なわれてスライドの平衡移動がは
かられているが、スライドおよびスライドガイド
の剛性や油圧油の圧縮性、油もれ等から、平衡精
度を100分の５mm以内とするには限界があり、特
に大出力、長ストロークのプレス装置では、装置
の剛性を高めようとすると大型化し、高価となつ
て実用的でないものであつた。 Conventionally, in the press molding of this resin plate, balanced movement of the slide has been achieved using a press brake system and left-right synchronization control through communication of hydraulic cylinders, but the rigidity of the slide and slide guide and the hydraulic fluid There is a limit to achieving equilibrium accuracy within 5/100 mm due to compressibility, oil leakage, etc. Especially in high-output, long-stroke press equipment, increasing the rigidity of the equipment will result in larger and more expensive equipment. It was becoming impractical.
さらにまた、金型内で表面被覆を施す、いわゆ
るインモールド・コーテイングにあつては、表面
皮膜が0.25mm以上になるとひび割れ現象が発生
し、インモールド・コーテイング面からもスライ
ドの平衡精度を向上してできるだけ薄膜被覆する
ことが好ましいものであつた。 Furthermore, in so-called in-mold coating, where a surface coating is applied inside the mold, cracking occurs when the surface coating exceeds 0.25 mm, and the balance accuracy of the slide is improved from the in-mold coating surface. It was preferable to coat the material with as thin a film as possible.
本発明は上記のような点に鑑みたもので、上記
の課題を解決するために、プレス装置のベツド部
に対向して摺動自在に設けたスライドを介して加
圧する加圧シリンダの加圧力を成形材である樹脂
板の予め計測した変形抵抗にそつて多段階の階段
状に制御するように設定、または予め計測した変
形抵抗を加算した所定関数関係で制御するように
設定し、ベツド部にスライドを平衡支持するため
の油圧サーボ制御の短ストローク、小出力の平衡
支持装置をその支持力を検出自在に支持力検出器
を接続して配設し、上記加圧シリンダの加圧力設
定にもとづいてスライドを平衡支持装置で平衡支
持しながら下降して金型装置に装填の樹脂板を加
圧成形していくとともに、支持力検出器で検出の
平衡支持装置の支持力を加圧シリンダの上記加圧
力制御設定の基準設定値と比較して支持力を基準
設定値との差分が小さくなるように加圧シリンダ
を下降制御して樹脂板をプレス成形することを特
徴とする樹脂板のプレス成形方法を提供するにあ
る。 The present invention has been made in view of the above-mentioned points, and in order to solve the above-mentioned problems, the present invention has been developed by applying pressure from a pressurizing cylinder that applies pressure via a slide slidably provided opposite to the bed portion of a press device. It is set to be controlled in a multi-step manner in accordance with the pre-measured deformation resistance of the resin plate which is the molding material, or it is set to be controlled in a predetermined function relationship by adding the pre-measured deformation resistance. A hydraulic servo-controlled, short-stroke, small-output balance support device is connected to a support force detector that can freely detect the support force to support the slide in a balanced manner. The slide is then descended while being balanced and supported by the balance support device, and the resin plate loaded in the mold device is pressure-molded, and the support force of the balance support device is detected by the support force detector and is then measured by the pressure cylinder. A press for a resin plate, characterized in that the resin plate is press-molded by controlling the pressurizing cylinder downward so that the difference between the supporting force and the reference setting value is smaller than the reference setting value of the pressurizing force control setting. To provide a molding method.
以下、本発明を実施例にもとづいて説明する。 Hereinafter, the present invention will be explained based on examples.
第１図は本発明を実施した製造装置の一例であ
る。プレス装置１は、所定の大出力、長ストロー
クの油圧プレスで、上部の上フレーム２に所要の
大出力、長ストロークの加圧シリンダ３を１ない
し複数個配設し、スライド４を下部のベツド５側
に昇降自在としている。下部のベツド５の長手方
向の４隅には、第２図のようにリーニアスケール
のような位置検出器６を併設するとともに油圧サ
ーボバルブ７で位置制御、速度制御の油圧シリン
ダのような平衡支持装置８をそれぞれ垂直に配設
し、第３図のように位置検出器６で検出した位置
をフイードバツクして多段階にわたる速度、位置
の高精度の同調制御を行うようにしている。この
平衡支持装置８は、上記加圧シリンダ３に比して
ほぼ５分の１位の小出力で、ストロークもシート
状の樹脂板９を所定の上金型１０、下金型１１の
金型装置１２を介して加圧成形するために必要な
範囲のできるだけ短いもので、下降したスライド
４をプレス成形において100分の５mm以内といつ
た精度で平衡支持するものである。平衡支持装置
８には、また支持力を検出するための流体・圧力
変換の圧力検出器のような支持力検出器１３（必
要によりロードセルとすることも可能）をそれぞ
れ配設し、第３図のようにそれぞれの支持圧力を
Ａ−Ｄ変換器１４でデイジタル量変換して演算器
１５で合計し、基準出力設定器１６の設定量と演
算処理して加圧シリンダ３の比例式電磁リリーフ
バルブのような圧力設定器１７を所定値に設定し
て制御するものである。この圧力設定は、成形材
である樹脂板９の変形抵抗を実測して、たとえば
多段階の階段状に、好ましくは平衡支持装置８の
支持力の変化分に樹脂板９の変形抵抗を加味した
所定の関数関係で制御するようにし、スライド４
を平衡支持装置８に接触して後、樹脂板９の変形
抵抗に抗して平衡支持装置８から遅れて離れるこ
となく、確実に平衡支持装置８に当接して樹脂板
９を加圧成形できるようにするものである。な
お、図示していないが、金型装置１２等には、ス
チームや熱油等の熱媒体を通過するようにして、
所定の温度にできるようにするなどプレス成形に
必要な公知の構造となつているものである。 FIG. 1 shows an example of a manufacturing apparatus in which the present invention is implemented. The press device 1 is a hydraulic press with a predetermined high output and a long stroke, and has one or more pressurizing cylinders 3 with a required high output and a long stroke disposed on an upper frame 2 at the upper part, and a slide 4 that is attached to a bed in the lower part. It can be raised and lowered freely on the 5th side. At the four longitudinal corners of the lower bed 5, as shown in Fig. 2, a position detector 6 such as a linear scale is installed, and a hydraulic servo valve 7 is installed to control the position and speed using a balance sensor such as a hydraulic cylinder. The support devices 8 are arranged vertically, and as shown in FIG. 3, the positions detected by the position detectors 6 are fed back to perform highly accurate synchronized control of speed and position over multiple stages. This balance support device 8 has a small output that is about one-fifth that of the pressure cylinder 3, and has a stroke that moves a sheet-like resin plate 9 into a predetermined upper mold 10 and lower mold 11. This is as short as possible within the range necessary for pressure forming through the device 12, and supports the descended slide 4 in equilibrium with an accuracy of within 5/100 mm during press forming. Each of the equilibrium support devices 8 is also provided with a supporting force detector 13 (which can be a load cell if necessary) such as a pressure detector for fluid/pressure conversion to detect the supporting force, as shown in FIG. As shown in the figure, each support pressure is converted into a digital value by the A-D converter 14, summed by the calculator 15, and processed with the setting value of the reference output setting device 16 to set the proportional electromagnetic relief valve of the pressurizing cylinder 3. The pressure setting device 17 is set to a predetermined value and controlled. This pressure setting is determined by actually measuring the deformation resistance of the resin plate 9, which is a molding material, and preferably adding the deformation resistance of the resin plate 9 to the change in the supporting force of the balance support device 8, for example, in a multi-step manner. Control using a predetermined function relationship, slide 4
After contacting the balance support device 8, the resin plate 9 can be press-molded by surely contacting the balance support device 8 without being delayed and separated from the balance support device 8 against the deformation resistance of the resin plate 9. It is intended to do so. Although not shown in the drawings, the mold device 12 is configured to pass a heat medium such as steam or hot oil.
It has a known structure necessary for press molding, such as being able to maintain a predetermined temperature.
しかして、下金型１１に所定の軟化状態の樹脂
板９を塔載してプレス成形するにあつては、加圧
シリンダ３、平衡支持装置８の速度、位置、圧力
設定値を予めプログラム設定し、樹脂板９の変形
抵抗値を設定器１６に予め設定する。そして、装
置を運転すると、油圧装置（図示せず）の制御に
より加圧シリンダ３が駆動して第４図のようにス
ライド４を高速下降するとともに、成形材料の樹
脂板９を押圧するやや上方の位置で低速に切り替
わり、第１図の鎖線のように平衡支持装置８にソ
フトに塔載する。すると、平衡支持装置８は、所
定のプログラム設定にもとづいて同調して下降
し、スライド４を精度よく100分の５mm内の精度
で平衡に支持していくとともに、上金型１０が樹
脂板９に当接して上金型１０の下金型１１とで形
成する所定のキヤビテイ１８に樹脂板９を流動充
填していくものである。この際、平衡支持装置８
の抗力の変化量と樹脂板９の変形抵抗量に予め対
応して設定した圧力設定器１７で加圧シリンダ３
を第４図の一点鎖線で示すように加圧し、そのと
きの平衡支持装置８の支持力を支持力検出器１３
を介して第３図のようにして演算処理し、予め設
定した基準設定値と支持力とを比較してその差分
が小さくなるようにスライド４を介して樹脂板の
変形抵抗に抗することなく加圧シリンダ３を下降
制御するので、スライド４が樹脂板９の変形抵抗
に抗して平衡支持装置８の下降に遅れることな
く、スライド４が平衡支持装置８に確実に追従し
ていくものである。このようにして、樹脂板９を
キヤビテイ１８に完全に流動充填させ、所定の加
圧力で押圧するとともに金型装置１２を所定の温
度に上昇し、樹脂板９を加圧硬化して所望の形状
にプレス成形するものである。このように、スラ
イドが大出力、長ストロークのプレス装置であつ
ても、加圧シリンダに対して５分の１程の小出力
で短ストロークの平衡支持装置を精密に平衡支持
制御することによりスライドの平衡精度を高める
ことができ、樹脂板をキヤビテイに均一に流動充
填できるものである。またスライドを介して樹脂
板の変形抵抗に抗することなく加圧して平衡支持
装置に追従するので、スライドが平衡支持装置よ
り離れずに、製品に偏肉が生じずにプレス成形で
きるものである。 When the resin plate 9 in a predetermined softened state is placed on the lower mold 11 and press-molded, the speed, position, and pressure setting values of the pressure cylinder 3 and the balance support device 8 are programmed in advance. Then, the deformation resistance value of the resin plate 9 is set in the setting device 16 in advance. When the device is operated, the pressure cylinder 3 is driven by the control of a hydraulic device (not shown), and as shown in FIG. At the position, the speed is changed to low, and the tower is gently placed on the balance support device 8 as shown by the chain line in FIG. Then, the balance support device 8 descends in synchronization based on the predetermined program settings, and supports the slide 4 in balance with precision within 5/100 mm, and the upper mold 10 moves toward the resin plate 9. The resin plate 9 is flow-filled into a predetermined cavity 18 formed by the upper mold 10 and the lower mold 11 in contact with the upper mold 10 and the lower mold 11. At this time, the balance support device 8
The pressurizing cylinder 3 is controlled by the pressure setting device 17, which is set in advance in accordance with the amount of change in the drag of the resin plate 9 and the amount of deformation resistance of the resin plate 9.
is pressurized as shown by the dashed line in FIG.
The calculation process is performed as shown in Fig. 3 through the slide 4, and the support force is compared with the preset reference setting value, and the difference is made small without resisting the deformation resistance of the resin plate. Since the pressure cylinder 3 is controlled to descend, the slide 4 can reliably follow the balance support device 8 without delaying the descent of the balance support device 8 against the deformation resistance of the resin plate 9. be. In this way, the resin plate 9 is completely flow-filled into the cavity 18 and pressed with a predetermined pressure, and the mold device 12 is raised to a predetermined temperature to harden the resin plate 9 under pressure to form the desired shape. It is press-molded. In this way, even if the slide is a press device with a high output and a long stroke, the slide can be maintained by precisely controlling the balance support device with a short stroke and a low output of about one-fifth of the pressure cylinder. The balance accuracy can be improved, and the resin plate can be evenly fluidized and filled into the cavity. In addition, since pressure is applied via the slide without resisting the deformation resistance of the resin plate and it follows the equilibrium support device, the slide can be press-formed without separating from the equilibrium support device and without uneven thickness of the product. .
また、樹脂製品を金型内で表面被覆する、いわ
ゆるインモールド・コーテイングを行なう場合に
は、上記金型に所定の表面処理装置（図示せず）
と接続した射出装置（図示せず）を配設し、上記
のように樹脂板を加圧硬化した後、上金型を１〜
６mm位平衡に上昇して製品表面に表面被覆剤を射
出し、再び加圧硬化してプレス成形するものであ
る。この場合にも、平衡支持装置によつてスライ
ドを高精度に平衡支持して昇降できるので、上金
型と下金型との平衡精度を向上できて、0.025〜
0.100mm程度の均一で薄膜のコーテイングが行な
えるものである。特に、カーボンブラツク等を装
填した粘度の高い表面被覆剤についても、平衡精
度を向上できるため、確実に均一な表面被覆を施
すことができるものである。 In addition, when performing so-called in-mold coating, in which the surface of a resin product is coated within a mold, a predetermined surface treatment device (not shown) is installed on the mold.
After installing an injection device (not shown) connected to the resin plate and curing the resin plate under pressure as described above, the upper mold is
The surface coating material is raised to an equilibrium level of about 6 mm, injected onto the surface of the product, and then hardened under pressure again for press molding. In this case as well, the slide can be lifted and lowered with highly accurate balance support by the balance support device, which improves the balance accuracy between the upper and lower molds, and allows for 0.025~
It is possible to coat a uniform thin film of about 0.100 mm. In particular, even for highly viscous surface coating agents loaded with carbon black or the like, the equilibrium accuracy can be improved, so that uniform surface coating can be reliably applied.
また、上記したように加圧シリンダの圧力を所
定のプレス成形に際して、予めプログラム設定し
ておくので、高圧力の圧力油をリリーフバルブで
大量にリリーフして無駄にエネルギを消費するこ
とも回避できて、省エネルギがはかれるものであ
る。 In addition, as mentioned above, since the pressure of the pressurized cylinder is programmed in advance for the specified press forming, it is possible to avoid wasting energy by relieving a large amount of high-pressure oil with the relief valve. Therefore, energy saving can be achieved.
また、成形材料としては、本発明が適用できる
限りにおいて、熱可塑性、熱硬化性の樹脂や、ガ
ラス繊維、カーボン繊維、金属繊維等を強化した
ものであつてもよいものである。 Further, the molding material may be one reinforced with thermoplastic or thermosetting resin, glass fiber, carbon fiber, metal fiber, etc., as long as the present invention is applicable.
なお、本発明は、新規なプレス装置に適用でき
るのはもちろんのこと、従来のプレス装置に上記
のような平衡支持装置、制御装置等を配設するこ
ともできるもので、平衡精度のよくない従来のプ
レス装置を、上記のような高精度のものに改良す
ることができるものである。 It should be noted that the present invention is not only applicable to a new press device, but also can be applied to a conventional press device with the above-mentioned balance support device, control device, etc. It is possible to improve the conventional press device to one with high precision as described above.
以上のように本発明にあつては、スライドを過
大に加圧したり、過小に加圧することなく、成形
材である樹脂板の変形抵抗に対応して適切に加圧
制御でき、またたとえ大出力、長ストロークのプ
レス装置であつても、特にスライドやスライドガ
イドの剛性を高めて装置を大型化することなく、
樹脂板の成形に必要な範囲の小ストロークの平衡
支持装置によつて支持力を検出しながらスライド
を高精度に平衡に支持して成形することができ
る。そしてさらに、スライドを平衡に支持する平
衡支持装置の支持力を支持力検出器で検出して、
成形材である樹脂板の予め計測した変形抵抗にそ
つて多段階の階段状に制御するように設定、また
は予め計測した変形抵抗を加算した所定の関数関
係で制御するように設定した基準設定値と上記支
持力とを比較してその差分が小さくなるように加
圧シリンダを下降制御するので、スライドが平衡
支持装置から離れたり、樹脂板に過大に負荷する
ことなく平衡支持装置の下降に追従して加圧した
シリンダを下降できる。そのため、突然の樹脂板
の変形抵抗量やそれに基づく平衡支持装置の支持
力の変化量によつてスライド平衡支持装置から離
れたり、平衡支持装置を過大に負荷したりするこ
となく、スライドを平衡支持装置の下降に遅れる
ことなく、スライドを平衡支持装置を過大に負荷
したりすることなく、スライドを平衡支持装置の
下降に遅れることなく、確実に平衡支持装置に追
従して樹脂板を金型装置のキヤビテイに均一状に
流動充填させることができ、良好な製品をプレス
成形できるものである。さらに、スライドを高精
度に平衡支持できるので、インモールド・コーテ
イングを施すにあつても、均一な表面被覆が行な
えるとともにひび割れの生じない薄膜とすること
ができるものである。 As described above, in the present invention, the pressure can be appropriately controlled in response to the deformation resistance of the resin plate that is the molding material, without applying too much or too little pressure to the slide. , even if it is a long-stroke press device, there is no need to increase the rigidity of the slide or slide guide and make the device larger.
The slide can be supported in balance with high precision and molded while detecting the supporting force using the balance support device with a small stroke within the range necessary for molding the resin plate. Furthermore, the support force of the balance support device that supports the slide in balance is detected by a support force detector,
A standard set value that is set to be controlled in a multi-step manner according to the pre-measured deformation resistance of the resin plate that is the molding material, or to be controlled according to a predetermined function relationship that is the addition of the pre-measured deformation resistance. The pressurized cylinder is controlled to descend so that the difference is small by comparing the above support force, so the slide follows the descent of the balance support device without moving away from the balance support device or placing an excessive load on the resin plate. The pressurized cylinder can then be lowered. Therefore, the slide can be balanced and supported without separating from the slide balance support device or placing an excessive load on the balance support device due to the sudden amount of deformation resistance of the resin plate or the amount of change in the support force of the balance support device based on the sudden deformation resistance of the resin plate. The resin plate is placed in the mold machine without delaying the descending of the equipment, without overloading the balancing support device, and without delaying the descending of the balancing support device. It is possible to fluidly fill the cavity uniformly, and it is possible to press mold a good product. Furthermore, since the slide can be supported in equilibrium with high precision, even when in-mold coating is applied, uniform surface coverage can be achieved and a thin film without cracks can be obtained.
第１図は本発明の一実施例のプレス成形装置の
一部省略した概略側断面図、第２図は同上の一部
省略した平断面図、第３図は同上の平衡支持の制
御ブロツク図、第４図は同上のスライドストロー
ク、スライド加圧力と時間との関係のプレス成形
サイクル線図である。
１……プレス装置、４……スライド、５……ベ
ツド、８……平衡支持装置、９……樹脂板。
Fig. 1 is a partially omitted schematic side cross-sectional view of a press forming apparatus according to an embodiment of the present invention, Fig. 2 is a partially omitted plan cross-sectional view of the same, and Fig. 3 is a control block diagram of the balance support of the same. , FIG. 4 is a press molding cycle diagram showing the relationship between the slide stroke, slide pressing force, and time. DESCRIPTION OF SYMBOLS 1... Press device, 4... Slide, 5... Bed, 8... Balance support device, 9... Resin plate.
Claims (1)
設けたスライドを介して加圧する加圧シリンダの
加圧力を成形材である樹脂板の予め計測した変形
抵抗にそつて多段階の階段状に制御するように設
定、または予め計測した変形抵抗を加算した所定
関数関係で制御するように設定し、ベツド部にス
ライドを平衡支持するための油圧サーボ制御の短
ストローク、小出力の平衡支持装置をその支持力
を検出自在に支持力検出器を接続して配設し、上
記加圧シリンダの加圧力設定にもとづいてスライ
ドを平衡支持装置で平衡支持しながら下降して金
型装置に装填の樹脂板を加圧成形していくととも
に、支持力検出器で検出の平衡支持装置の支持力
を加圧シリンダの上記加圧力制御設定の基準設定
値と比較して支持力を基準設定値との差分が小さ
くなるように加圧シリンダを下降制御して樹脂板
をプレス成形することを特徴とする樹脂板のプレ
ス成形方法。1 The pressurizing force of the pressurizing cylinder, which is applied via a slide slidably provided opposite to the bed part of the press device, is applied in a multi-step manner in accordance with the pre-measured deformation resistance of the resin plate that is the molding material. A hydraulic servo-controlled, short-stroke, low-output balance support device is installed to support the slide in balance on the bed. A supporting force detector is connected and arranged so that the supporting force can be freely detected, and the slide is descended while being balancedly supported by the balancing support device based on the pressure setting of the pressure cylinder, and the resin is loaded into the mold device. As the plate is pressure-formed, the supporting force of the balance support device detected by the supporting force detector is compared with the standard setting value of the pressure control setting of the pressurizing cylinder, and the difference between the supporting force and the standard setting value is calculated. 1. A method for press-molding a resin plate, characterized in that the resin plate is press-molded by controlling a pressurizing cylinder to descend so as to reduce the pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12511583A JPS6015119A (en) | 1983-07-08 | 1983-07-08 | Method of press molding resin plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12511583A JPS6015119A (en) | 1983-07-08 | 1983-07-08 | Method of press molding resin plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6015119A JPS6015119A (en) | 1985-01-25 |
| JPH0235653B2 true JPH0235653B2 (en) | 1990-08-13 |
Family
ID=14902213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12511583A Granted JPS6015119A (en) | 1983-07-08 | 1983-07-08 | Method of press molding resin plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6015119A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5071603A (en) * | 1987-12-14 | 1991-12-10 | Kabushiki Kaisha Kobe Seiko Sho | Method of controlling hydraulic press |
| DE3843593A1 (en) * | 1987-12-26 | 1989-07-27 | Kobe Steel Ltd | TOOL ALIGNMENT METHOD AND DEVICE FOR A MOLDING PRESS |
| JP6661277B2 (en) * | 2015-03-10 | 2020-03-11 | コマツ産機株式会社 | Press device and control method of press device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6213765Y2 (en) * | 1980-11-14 | 1987-04-09 |
-
1983
- 1983-07-08 JP JP12511583A patent/JPS6015119A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6015119A (en) | 1985-01-25 |
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