JPH0221154Y2 - - Google Patents

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Publication number
JPH0221154Y2
JPH0221154Y2 JP1984055871U JP5587184U JPH0221154Y2 JP H0221154 Y2 JPH0221154 Y2 JP H0221154Y2 JP 1984055871 U JP1984055871 U JP 1984055871U JP 5587184 U JP5587184 U JP 5587184U JP H0221154 Y2 JPH0221154 Y2 JP H0221154Y2
Authority
JP
Japan
Prior art keywords
hydraulic
cylinder
press
knockout
chamber
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
Application number
JP1984055871U
Other languages
Japanese (ja)
Other versions
JPS60171639U (en
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 filed Critical
Priority to JP5587184U priority Critical patent/JPS60171639U/en
Publication of JPS60171639U publication Critical patent/JPS60171639U/en
Application granted granted Critical
Publication of JPH0221154Y2 publication Critical patent/JPH0221154Y2/ja
Granted legal-status Critical Current

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  • Press Drives And Press Lines (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Description

【考案の詳細な説明】 本考案はプレス金型のノツクアウト装置に関わ
り、更に詳細には、上型に備えられたノツクアウ
ト部材を、プレスの1加工サイクル中において下
死点を過ぎて上死点に至る適宜時期に作動する油
圧装置を備えたプレス金型のノツクアウト装置に
関するものである。
[Detailed Description of the Invention] The present invention relates to a knock-out device for a press die, and more specifically, the present invention relates to a knock-out device for a press die, and more specifically, a knock-out member provided in an upper die is moved past the bottom dead center to the top dead center during one processing cycle of the press. This invention relates to a knock-out device for press molds equipped with a hydraulic system that operates at appropriate timings.

従来、例えばプリント基板などにプレスによつ
て多数の***を打抜くような作業では、一般にパ
ンチ(上型)が貫いた製品の穴径が小さくなる変
形により、製品がパンチと一体となつてダイ(下
型)から離れて上昇するから、パンチを備えた上
型がプレスのクランク軸の下死点から上死点に至
る途中において、ノツクアウト部材で製品をパン
チから抜いて離す作業が行なわれる。
Conventionally, when punching a large number of small holes in a printed circuit board or the like using a press, the hole diameter of the product pierced by the punch (upper die) becomes smaller, causing the product to become one with the punch and die. Since the product is lifted away from the (lower mold), the knock-out member is used to remove the product from the punch while the upper mold equipped with the punch moves from the bottom dead center of the press crankshaft to the top dead center.

これがノツクアウト作業で、従来、作動源とし
ては下向きの弾機による付勢力や、下向きの鎚打
方式や、流体圧駆動のプランジヤーなどが用いら
れていた。
This is knockout work, and conventionally, the operating source used was the urging force of a downward projectile, a downward hammering method, or a plunger driven by fluid pressure.

上記した従来のノツクアウト装置は、プレス加
工中もノツクアウト作業のノツクアウト圧が作用
しているものがあつたり、構造が複雑であつたり
して満足できるものがなかつたのである。
The above-mentioned conventional knock-out devices were unsatisfactory because the knock-out pressure of the knock-out operation was sometimes applied even during press working, and the structure was complicated.

本考案は上記した従来装置の不都合を軽減する
目的でなされもので、以下に図面にもとづいて本
考案の実施例を詳細に説明する。
The present invention has been devised for the purpose of alleviating the above-mentioned disadvantages of the conventional device, and embodiments of the present invention will be described in detail below based on the drawings.

初めに、第1図のA,B,C,Dによつて、プ
リント基板などの板材1に穴あけ作業を行ない、
上型3に設けたパンチ5と1体的に上昇した板材
1をノツクアウトパツド7に連設したノツクアウ
トピン9などでノツクアウトする状態を説明す
る。
First, holes are drilled in a board material 1 such as a printed circuit board according to A, B, C, and D in Fig. 1.
The state in which the punch 5 provided on the upper die 3 and the plate material 1 raised as one unit are knocked out using the knockout pin 9 connected to the knockout pad 7 will be explained.

第1図のAは、プレスのスライド11がクラン
ク軸などの偏心装置13の上死点15から時計回
り方向に下死点17に向かつて、約150度回動し
た状態を示している。
A in FIG. 1 shows a state in which the slide 11 of the press has rotated approximately 150 degrees from the top dead center 15 of an eccentric device 13 such as a crankshaft toward the bottom dead center 17 in a clockwise direction.

すなわち、パンチ5はまだ板材1の上面に達せ
ず、ボルスタ19上で板材1は、下型21とノツ
クアウトプレート23とに挟持された状態であ
る。
That is, the punch 5 has not yet reached the upper surface of the plate 1, and the plate 1 is held between the lower die 21 and the knockout plate 23 on the bolster 19.

上記したノツクアウトプレート23は、ノツク
アウトピン9によつてノツクアウトパツド7に連
結されており、パンチ5を保護し案内する貫通孔
25を備えていて板押えの役目も兼ねている。
The knockout plate 23 described above is connected to the knockout pad 7 by a knockout pin 9, has a through hole 25 for protecting and guiding the punch 5, and also serves as a plate holder.

またノツクアウトパツド7は上方が油圧室27
の中にあつてピストンの役目をしている。
Also, the upper part of the knockout pad 7 is the hydraulic chamber 27.
It is located inside and acts as a piston.

第1図のBはスライド11が偏心装置13の約
170度近辺に達した状態を示したもので、スライ
ド11は更に下降し、パンチ5の下端は板材1を
貫いて下型21に入り込んでおり、ノツクアウト
パツド7の上端は油圧室27の中にさらに入り込
んだ状態を示している。
B in FIG. 1 shows that the slide 11 is approximately the same as the eccentric device 13.
The slide 11 is further lowered, the lower end of the punch 5 has penetrated the plate material 1 and entered the lower die 21, and the upper end of the knockout pad 7 has reached approximately 170 degrees. It shows the state of being further inside.

第1図のCは、スライド11が偏心装置13の
下死点17を過ぎた約210度の位置に達した場合
を示しており、第1図のBから板材1を上昇させ
た状態を示している。
C in Fig. 1 shows the case where the slide 11 has reached a position of about 210 degrees past the bottom dead center 17 of the eccentric device 13, and shows the state in which the plate 1 has been raised from B in Fig. 1. ing.

第1図のDは、スライド11が偏心装置13の
上死点15にさらに接近して約330度に達した状
態を示したもので、第1図のCに比べると、スラ
イド11はより高く位置し、ノツクアウトパツド
7は油圧室27の圧油に駆動されて下降し、板材
1がノツクアウトプレート23に下向きに押され
てパンチ5から抜け落ちた状態を示している。
D in FIG. 1 shows the slide 11 approaching the top dead center 15 of the eccentric device 13 and reaching approximately 330 degrees, and compared to C in FIG. 1, the slide 11 is higher. The figure shows a state in which the knock-out pad 7 is moved downward by the pressure oil in the hydraulic chamber 27, and the plate material 1 is pushed downward by the knock-out plate 23 and has fallen out of the punch 5.

次に第2図に本考案の実施例のノツクアウト装
置の油圧制御部分を示した。
Next, FIG. 2 shows the hydraulic control portion of the knockout device according to the embodiment of the present invention.

前記したノツクアウトパツド7の上端がピスト
ンの役目をして昇降する油圧室27には、スライ
ド11の外部と連通する管路29,31と作動油
の補充管路33とが設けてある。
The hydraulic chamber 27, in which the upper end of the knockout pad 7 functions as a piston to move up and down, is provided with conduits 29, 31 communicating with the outside of the slide 11 and a replenishment conduit 33 for hydraulic oil.

2本の管路29,31は、駆動シリンダーの断
面積と管路の断面積の差を出来るだけ少なくする
ために設けられたものであり、更に流量制御弁3
5,37は管路の断面積を変える事(絞りを調節
すること)により駆動シリンダーの流体の流出抵
抗により発生する圧力を制御する役目を果す。流
量制御弁35,37を介した管路は油圧シリンダ
ー39に接続され、ピストン39Pを間にして形
成されたシリンダー室39Cとアキユームレータ
41は管路によつて接続される。ピストン39P
のロツドエンド39PEと空気圧シリンダ43の
ピストン43Pのロツドエンド43PEは当接す
る様に配置されており、第1気室43Fと第2気
室43Sはソレノイド切換弁45を経て空気減圧
弁47を介して、空圧源49に連結してある。
The two pipe lines 29 and 31 are provided to minimize the difference between the cross-sectional area of the drive cylinder and the cross-sectional area of the pipe line.
5 and 37 serve to control the pressure generated by the fluid outflow resistance of the drive cylinder by changing the cross-sectional area of the pipe (adjusting the throttle). A pipe line passing through the flow rate control valves 35 and 37 is connected to a hydraulic cylinder 39, and a cylinder chamber 39C formed with a piston 39P therebetween is connected to the accumulator 41 through the pipe line. Piston 39P
The rod end 39PE of the pneumatic cylinder 43 and the rod end 43PE of the piston 43P of the pneumatic cylinder 43 are arranged so as to be in contact with each other, and the first air chamber 43F and the second air chamber 43S are It is connected to a pressure source 49.

また前記した作動油補充管路33は、スライド
11の外でチエツクバルブ51、作動油補充装置
(コンバータ)53、空気圧減圧弁55を経て前
記した空圧源49に連結してある。
Further, the above-mentioned hydraulic oil replenishment pipe 33 is connected to the above-mentioned pneumatic pressure source 49 outside the slide 11 via a check valve 51, a hydraulic oil replenishment device (converter) 53, and a pneumatic pressure reducing valve 55.

本実施例の装置は、以上のように構成してなる
ものであるから、プレスの偏心装置13の軸に設
けたロータリーカムスイツチ(図示せず)によつ
て、スライド11の上死点15位置から第1図の
A状態位置付近まではソレノイド切換弁45を第
2図Bの状態に保つて、板材1を下型21とノツ
クアウトプレート23との間に挟持する。
Since the apparatus of this embodiment is constructed as described above, the top dead center 15 position of the slide 11 is adjusted by a rotary cam switch (not shown) provided on the shaft of the eccentric device 13 of the press. From then to near the A state position in FIG. 1, the solenoid switching valve 45 is kept in the state shown in FIG. 2B, and the plate material 1 is held between the lower die 21 and the knockout plate 23.

次に第1図Aの状態を過ぎると、第2図Bに示
したソレノイド切換弁45を切り換えて、第一気
室43Fに圧縮空気を送る。空圧シリンダー43
はアキユームレータ41のガス圧に抗して作動し
得る大径のものを選んでおり、ノツクアウト駆動
部にアキユームレーター41のガス圧を伝えない
様に流体ピストン39Pに作動させてある。第1
図Bに示した様にノツクアウトのノツクアウトパ
ツド7を押下げるため油圧室27内の流体は管路
29,31より流出されて体積を減少させるが、
このとき流量制御弁35,37の絞り調節により
発生する流出抵抗による圧力は逆にノツクアウト
プレート23と板材1を下型21との間に挾持さ
せ、プリント基板のように打抜きに必要な挾持圧
を与えながら、スライド11が下降してパンチ5
げ穴あけ作業を行なうことになる。
Next, when the state shown in FIG. 1A is passed, the solenoid switching valve 45 shown in FIG. 2B is switched to send compressed air to the first air chamber 43F. Pneumatic cylinder 43
is selected to have a large diameter that can operate against the gas pressure of the accumulator 41, and is actuated by the fluid piston 39P so as not to transmit the gas pressure of the accumulator 41 to the knockout drive section. 1st
As shown in Figure B, in order to push down the knockout pad 7 of the knockout, the fluid in the hydraulic chamber 27 flows out through the pipes 29 and 31, reducing the volume.
At this time, the pressure due to the outflow resistance generated by the throttle adjustment of the flow rate control valves 35 and 37 conversely causes the knockout plate 23 and the plate material 1 to be sandwiched between the lower die 21 and the clamping pressure necessary for punching, such as a printed circuit board, is generated. While giving the punch, the slide 11 descends and punches 5.
Drilling work will be carried out.

この場合のパンチ5が板材1を打抜く力は、ノ
ツクアウトプレート23が板材1を下型に押しつ
ける力(バツクプレツシヤとも云う)と競合関係
にあるが、プレスの容量トン数に影響を及ぼす程
のものにはとうていならないのである。
In this case, the force with which the punch 5 punches the plate 1 competes with the force of the knockout plate 23 pressing the plate 1 against the lower mold (also called back pressure), but the force is strong enough to affect the tonnage capacity of the press. It doesn't really need anything.

次にスライド11が下死点17の位置を過ぎて
上昇に移ると、第1図のCのように板材1をパン
チ5の下端につけたままパンチ5は下型21より
離れる。
Next, when the slide 11 moves upward past the bottom dead center 17, the punch 5 leaves the lower mold 21 with the plate material 1 attached to the lower end of the punch 5, as shown in FIG. 1C.

次にスライド11が約270度付近に達すると、
前記した偏心装置13の軸に設けたカムスイツチ
によつてソレノイド切換弁45を切り換えて第1
気室43Fは外気に開放され、第2気室43Sに
圧縮空気が入る。空圧ピストン43Pは、他に抵
抗がないので油圧ピストン39Pより早く戻つ
て、ロツドエンド43PEと39PEとの間は空間
となる。このためアキユームレーター41のガス
圧は全て流体を通じてノツクアウト駆動シリンダ
ーに伝わるから、油圧室27に大量の圧油が迅速
に供給され、第1図のDに示したように板材1は
ノツクアウトプレート23に下向きに押されて落
下することになる。
Next, when slide 11 reaches around 270 degrees,
The solenoid switching valve 45 is switched by the cam switch provided on the shaft of the eccentric device 13 described above.
The air chamber 43F is open to the outside air, and compressed air enters the second air chamber 43S. Since the pneumatic piston 43P has no other resistance, it returns earlier than the hydraulic piston 39P, leaving a space between the rod ends 43PE and 39PE. Therefore, all the gas pressure in the accumulator 41 is transmitted to the knock-out drive cylinder through fluid, so a large amount of pressure oil is quickly supplied to the hydraulic chamber 27, and the plate material 1 is moved to the knock-out plate as shown in D in FIG. 23 will push you downwards and you will fall.

第2図のBに示した作動油補充装置53はコン
バータとも呼ばれ、油圧室27、管路29、管路
31、作動油補充管路33、流量制御弁35,3
7、油圧シリンダ39の閉鎖油路中のリークなど
によつて油量が減少し、空圧源49の空気圧と比
較した1定圧以下になるとピストン53Pが空気
圧で移動させられて、対応する圧油が前記した閉
鎖油路中に補充されるのである。
The hydraulic oil replenishment device 53 shown in FIG.
7. When the amount of oil decreases due to a leak in the closed oil passage of the hydraulic cylinder 39 and becomes less than 1 constant pressure compared to the air pressure of the air pressure source 49, the piston 53P is moved by air pressure and the corresponding pressure oil is moved. is replenished into the closed oil passage described above.

以上のごとき実施例の説明より理解されるよう
に、要するに本発明は、プレスにおける上下動自
在なスライド11に形成された油圧室27にノツ
クアウトパツド7を上下動自在に備え、かつプレ
スにおける偏心装置13の回転位置に対応して切
換え作動されるソレノイド切換弁の切換作動によ
つて前記油圧室27へ圧油の供給を切換える流体
圧回路を備えてなるプレス金型のノツクアウト装
置にして、ピストン39Pを往復動自在に備えた
油圧シリンダ39の一方のシリンダー室39Cを
アキユームレータ41に接続して設け、この油圧
シリンダ39の他方のシリンダー室と前記油圧室
27とを接続した管路に流量制御弁を設け、前記
油圧シリンダ39のピストン39Pの作動を制御
するための空気気圧シリンダ43を設け、この空
気圧シリンダ43の作動を制御する回路中に前記
ソレノイド切換弁を設けてなるものである。
As can be understood from the above description of the embodiments, the present invention basically provides a hydraulic chamber 27 formed in a slide 11 that is movable up and down in a press, and a knockout pad 7 that is movable up and down. A press mold knockout device comprising a fluid pressure circuit that switches the supply of pressure oil to the hydraulic chamber 27 by the switching operation of a solenoid switching valve that is switched and operated in accordance with the rotational position of the eccentric device 13, One cylinder chamber 39C of a hydraulic cylinder 39 equipped with a piston 39P that can freely reciprocate is connected to the accumulator 41, and a pipe line connecting the other cylinder chamber of this hydraulic cylinder 39 and the hydraulic chamber 27 is provided. A flow control valve is provided, a pneumatic cylinder 43 for controlling the operation of the piston 39P of the hydraulic cylinder 39 is provided, and the solenoid switching valve is provided in a circuit for controlling the operation of the pneumatic cylinder 43. .

上記構成より既に理解されるように、本考案に
よれば、流量制御弁によつてバツクプレツシヤの
強さが調節自在であり、バツクプレツシヤが強力
すぎること、あるいは弱すぎることによる問題が
ないものである。
As already understood from the above structure, according to the present invention, the strength of the back pressure can be adjusted by the flow control valve, and there is no problem caused by the back pressure being too strong or too weak.

また、本考案によれば、油圧シリンダ39の圧
油を、スライド11に形成した油圧室27に供給
することによつてノツクアウトを行なうものであ
るが、油圧シリンダ39から供給される圧油はア
キユムレータの作用によるものであり、大量の圧
油を迅速に供給することができるものである。す
なわち本考案によれば、増圧器を必要としないの
で、回路構成が簡単な構成になると共に、前記油
圧室27の断面積を大きく形成した場合であつて
も、必要量の圧油の供給を迅速に行ない得るもの
である。
Further, according to the present invention, knockout is performed by supplying pressure oil from the hydraulic cylinder 39 to the hydraulic chamber 27 formed in the slide 11. This is due to the effect of this, and a large amount of pressure oil can be quickly supplied. That is, according to the present invention, since a pressure intensifier is not required, the circuit configuration becomes simple, and even when the cross-sectional area of the hydraulic chamber 27 is formed large, it is possible to supply the necessary amount of pressure oil. It can be done quickly.

さらに、前記油圧シリンダ39の作動の制御は
空気圧シリンダ43を作動することによつて行な
つているので、簡単な構成とすることができるも
のである。
Furthermore, since the operation of the hydraulic cylinder 39 is controlled by operating the pneumatic cylinder 43, the structure can be simple.

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

第1図A,B,C,Dは、ノツクアウト装置の
作動を順序を追つて示した説明図。第2図A,B
は主要部の正断面及び流体圧配管図。 図面の主要部を表わす符号の説明、1…板材、
5…パンチ、7…ノツクアウトパツド、23…ノ
ツクアウトプレート、53…作動油補充装置。
FIGS. 1A, B, C, and D are explanatory diagrams sequentially showing the operation of the knockout device. Figure 2 A, B
The figure is a front cross section of the main parts and a diagram of the fluid pressure piping. Explanation of the symbols representing the main parts of the drawing, 1... Plate material,
5... Punch, 7... Knock out pad, 23... Knock out plate, 53... Hydraulic oil replenishment device.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] プレスにおける上下動自在なスライド11に形
成された油圧室27にノツクアウトパツド7を上
下動自在に備え、かつプレスにおける偏心装置1
3の回転位置に対応して切換え作動されるソレノ
イド切換弁の切換作動によつて前記油圧室27へ
圧油の供給を切換える流体圧回路を備えてなるプ
レス金型のノツクアウト装置にして、ピストン3
9Pを往復動自在に備えた油圧シリンダ39の一
方のシリンダー室39Cをアキユムレータ41に
接続して設け、この油圧シリンダ39の他方のシ
リンダー室と前記油圧室27とを接続した管路に
流量制御弁を設け、前記油圧シリンダ39のピス
トン39Pの作動を制御するための空気気圧シリ
ンダ43を設け、この空気圧シリンダ43の作動
を制御する回路中に前記ソレノイド切換弁を設け
てなることを特徴とするプレス金型のノツクアウ
ト装置。
A hydraulic chamber 27 formed in a vertically movable slide 11 in a press is provided with a knockout pad 7 that can be vertically movable, and an eccentric device 1 in a press.
The press mold knockout device includes a fluid pressure circuit that switches the supply of pressure oil to the hydraulic chamber 27 by the switching operation of a solenoid switching valve that is switched and operated in accordance with the rotational position of the piston 3.
One cylinder chamber 39C of a hydraulic cylinder 39 reciprocally equipped with 9P is connected to the accumulator 41, and a flow control valve is connected to a pipe connecting the other cylinder chamber of this hydraulic cylinder 39 and the hydraulic chamber 27. A press characterized in that a pneumatic cylinder 43 is provided for controlling the operation of the piston 39P of the hydraulic cylinder 39, and the solenoid switching valve is provided in a circuit for controlling the operation of the pneumatic cylinder 43. Mold knockout device.
JP5587184U 1984-04-18 1984-04-18 Knockout device for press molds Granted JPS60171639U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5587184U JPS60171639U (en) 1984-04-18 1984-04-18 Knockout device for press molds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5587184U JPS60171639U (en) 1984-04-18 1984-04-18 Knockout device for press molds

Publications (2)

Publication Number Publication Date
JPS60171639U JPS60171639U (en) 1985-11-14
JPH0221154Y2 true JPH0221154Y2 (en) 1990-06-07

Family

ID=30578951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5587184U Granted JPS60171639U (en) 1984-04-18 1984-04-18 Knockout device for press molds

Country Status (1)

Country Link
JP (1) JPS60171639U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS573438B2 (en) * 1977-03-14 1982-01-21
JPS57118836A (en) * 1981-01-14 1982-07-23 Aioi Seiki Kk Hydraulic driving device for knock-out device of press machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5917453Y2 (en) * 1980-06-02 1984-05-22 相生精機株式会社 Pneumatic/hydraulic drive device for slide knockout device of press machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS573438B2 (en) * 1977-03-14 1982-01-21
JPS57118836A (en) * 1981-01-14 1982-07-23 Aioi Seiki Kk Hydraulic driving device for knock-out device of press machine

Also Published As

Publication number Publication date
JPS60171639U (en) 1985-11-14

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