JPS624400Y2 - - Google Patents
Info
- Publication number
- JPS624400Y2 JPS624400Y2 JP17951483U JP17951483U JPS624400Y2 JP S624400 Y2 JPS624400 Y2 JP S624400Y2 JP 17951483 U JP17951483 U JP 17951483U JP 17951483 U JP17951483 U JP 17951483U JP S624400 Y2 JPS624400 Y2 JP S624400Y2
- Authority
- JP
- Japan
- Prior art keywords
- relay
- contact
- circuit
- press
- rotary cam
- 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
Links
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Presses And Accessory Devices Thereof (AREA)
- Control Of Presses (AREA)
Description
本考案はプレス機械におけるプレス運転操作時
の逆転運転判別回路装置に関するものである。
従来のプレス機械の逆転運転操作はスライド停
止位置がどの角度にあつても運転が可能であつ
た。スライド停止位置が下死点を過ぎた角度では
逆転運転の必要性はなくむしろ危険である。
またプレスオーバーロード時下死点手前で停止
した時操作誤りによつて正転運転を行つた場合プ
レス機械及び金型損傷等の危険が発生していた。
本考案は上記の事情に鑑みなされたものであつ
てその目的とするところはスライド停止位置が下
死点を過ぎた角度（180゜〜10゜）では逆転運転
を行うことはできず、またプレスオーバーロード
時スライドが下死点手前で停止した場合逆転運転
を行い、プレス機械及び金型損傷等の危険を回避
することができるプレス機械の逆転判別回路装置
を提供することにある。
以下、本考案を図面を参照して説明する。第１
図にリレー回路を、第２図にプレス非常停止回路
をそれぞれ示す。リレー回路においてPSIはプレ
スオーバーロード時入（ON）する圧力スイツ
チ、KSIは逆転運転操作を選択するキースイツ
チ、Ｒ１は第１リレー、Ｒ２は第２リレーであ
る。
プレス非常停止回路においてLSIはプレス逆転
位置を選択する検出器１３としてのロータリカム
スイツチであり、このロータリカムスイツチLSI
は接点Ａと接点Ｂとを備えており、接点Ａはスラ
イドのクランク角度が180゜〜10゜の範囲で入と
なりまた接点Ｂはスライドのクランク角度が10゜
〜180゜の範囲で入となるものである。すなわ
ち、第３図にクランク角度、スライドストローク
とロータリカムスイツチLSIの関係を示す。斜線
部分が「入」である。
Ｒ１−１は第１リレーＲ１の常閉のリレー接
点、Ｒ１−２は第１リレーＲ１の常開のリレー接
点、Ｒ２−１は第２リレーＲ２の常閉のリレー接
点、Ｒ２−２、Ｒ２−３は第２リレーＲ２の常開
のリレー接点、１０はプレス運転回路、１１は電
源である。
そして電源１１は第１リレーＲ１の常閉のリレ
ー接点Ｒ１−１及び第２リレーＲ２の常閉のリレ
ー接点Ｒ２−１を介してプレス運転回路１０に接
続してあり、また電源１１は第１リレーＲ１の常
開のリレー接点Ｒ１−２とロータリカムスイツチ
LSIの接点Ｂと第２リレーＲ２の常開のリレー接
点Ｒ２−３を介してプレス運転回路１０に接続し
てあり、また電源１１は第１リレーＲ１の常閉の
リレー接点Ｒ１−１と第２リレーＲ１の常開のリ
レー接点Ｒ２−２とロータリカムスイツチLSIの
接点Ｂと第２リレーＲ２の常開のリレー接点Ｒ２
−３とを介してプレス運転回路１０に接続してあ
り、また電源１１は第１リレーＲ１の常閉のリレ
ー接点Ｒ１−１とロータリカムスイツチLSIの接
点Ａ，Ｂと第２リレーＲ２の常開のリレー接点Ｒ
２−３とを介してプレス運転回路１０に接続して
ある。
次に作動を説明する。
(1) キースイツチKSI切、圧力スイツチPSI切の
場合、第１・第２リレーＲ１，Ｒ２は切である
ためにリレー接点Ｒ１−１は入、リレー接点Ｒ
１−２は切、リレー接点Ｒ２−１は入、リレー
接点Ｒ２−２、Ｒ２−３は切になり、ロータリ
カムスイツチLSIの入、切に関係なく正転が選
択される。
(2) また圧力スイツチPSI入、キースイツチKSI
の場合第１・第２リレーＲ１，Ｒ２は入である
ためにリレー接点Ｒ１−１は切、リレー接点Ｒ
１−２は入、リレー接点Ｒ２−１は切、リレー
接点Ｒ２−２、Ｒ２−３は入になり、スライド
のクランク角度が10゜〜180゜の範囲（下死点
前）の場合ロータリカムスイツチLSIの接点Ｂ
が入で電流はリレー接点Ｒ１−２、接点Ｂ、リ
レー接点Ｒ２−３を通つてプレス運転回路１０
に流れ逆転運転が可能になる。
またスライドのクランク角度が180゜〜10゜
の範囲（下死点後）の場合、ロータリカムスイ
ツチLSIの接点Ｂが切でプレス運転回路１０に
電流が流れず運転不能となる。
(3) また、圧力スイツチPSIが入、キースイツチ
KSIが切の場合、第１リレーＲ１が入、第２リ
レーＲ２が切であるために、リレー接点Ｒ１−
１は切、リレー接点Ｒ１−２、Ｒ２−１は入、
リレー接点Ｒ２−２、Ｒ２−３は切になり、ス
ライドのクランク角度が10゜〜180゜の範囲
（下死点前）の場合、ロータリカムスイツチ
LSIの接点Ａが入になり、電流はリレー接点Ｒ
１−１、接点Ａ、リレー接点Ｒ２−１を通つて
プレス運転回路１０に流れ正転運転が可能にな
る。
またスライドのクランク角度が180゜〜10゜
の範囲（下死点後）の場合、ロータリカムスイ
ツチLSIの接点Ａが切になり電流はプレス運転
回路１０に流れず運転は不能になる。
(4) また圧力スイツチPSIが切でキースイツチ
KSIが入の場合、第１リレーＲ１は切、第２リ
レーＲ２は入となり、リレー接点Ｒ１−１は
入、リレー接点Ｒ１−２、Ｒ２−１は切、リレ
ー接点Ｒ２−２、Ｒ２−３は入になり、スライ
ドのクランク角度が10゜〜180゜の範囲（下死
点前）の場合、ロータリカムスイツチLSIの接
点Ｂが入になり、電流はリレー接点Ｒ１−２、
接点Ｂ、リレー接点Ｒ２−３を通つてプレス運
転回路１０に流れ逆転運転が可能である。また
スライドのクランク角度が180゜〜10゜の範囲
（下死点後）の場合、ロータリカムスイツチ
LSIの接点Ｂが切になり電流は運転回路１０に
流れず運転不能になる。
上記の作動を表示すると下表のようになる。
The present invention relates to a circuit device for determining reverse operation during press operation in a press machine. Conventional press machines can be operated in reverse at any angle of the slide stop position. If the slide stop position is at an angle past the bottom dead center, there is no need for reverse operation and it is rather dangerous. In addition, if the press stopped short of bottom dead center during press overload and was operated in the normal direction due to an operational error, there was a risk of damage to the press machine and the mold. This invention was developed in view of the above circumstances, and its purpose is that reverse operation cannot be performed when the slide stop position is at an angle past the bottom dead center (180° to 10°), and the press To provide a reverse rotation discrimination circuit device for a press machine, which performs reverse operation when the slide stops before the bottom dead center at the time of overload, and can avoid dangers such as damage to the press machine and a mold. Hereinafter, the present invention will be explained with reference to the drawings. 1st
The figure shows the relay circuit, and Fig. 2 shows the press emergency stop circuit. In the relay circuit, PSI is a pressure switch that turns on (ON) when the press overloads, KSI is a key switch that selects reverse operation, R1 is the first relay, and R2 is the second relay. In the press emergency stop circuit, LSI is a rotary cam switch as a detector 13 that selects the press reverse position, and this rotary cam switch LSI
has contact point A and contact point B, contact point A is turned on when the crank angle of the slide is in the range of 180° to 10°, and contact point B is turned on when the crank angle of the slide is in the range of 10° to 180°. It is something. That is, FIG. 3 shows the relationship between the crank angle, slide stroke, and rotary cam switch LSI. The shaded area is "on". R1-1 is a normally closed relay contact of the first relay R1, R1-2 is a normally open relay contact of the first relay R1, R2-1 is a normally closed relay contact of the second relay R2, R2-2, R2 -3 is a normally open relay contact of the second relay R2, 10 is a press operation circuit, and 11 is a power source. The power source 11 is connected to the press operation circuit 10 via the normally closed relay contact R1-1 of the first relay R1 and the normally closed relay contact R2-1 of the second relay R2. Normally open relay contact R1-2 of relay R1 and rotary cam switch
It is connected to the press operation circuit 10 via the contact B of the LSI and the normally open relay contact R2-3 of the second relay R2, and the power supply 11 is connected to the normally closed relay contact R1-1 of the first relay R1 and the normally open relay contact R1-1 of the first relay R1. The normally open relay contact R2-2 of the second relay R1, the contact B of the rotary cam switch LSI, and the normally open relay contact R2 of the second relay R2.
-3 to the press operation circuit 10, and the power supply 11 is connected to the normally closed relay contact R1-1 of the first relay R1, the contacts A and B of the rotary cam switch LSI, and the normally closed relay contact R1-1 of the second relay R2. Open relay contact R
2-3 to the press operation circuit 10. Next, the operation will be explained. (1) When the key switch KSI is off and the pressure switch PSI is off, the first and second relays R1 and R2 are off, so relay contact R1-1 is on and relay contact R is off.
1-2 is off, relay contact R2-1 is on, relay contacts R2-2 and R2-3 are off, and normal rotation is selected regardless of whether the rotary cam switch LSI is on or off. (2) Pressure switch PSI on, key switch KSI on
In this case, the first and second relays R1 and R2 are on, so relay contact R1-1 is off, and relay contact R
1-2 is on, relay contact R2-1 is off, relay contacts R2-2 and R2-3 are on, and when the slide crank angle is in the range of 10° to 180° (before bottom dead center), the rotary cam Switch LSI contact B
is turned on, the current passes through relay contacts R1-2, contact B, and relay contact R2-3 to press operation circuit 10.
Flow reversal operation becomes possible. Further, when the crank angle of the slide is in the range of 180° to 10° (after bottom dead center), contact B of the rotary cam switch LSI is disconnected, and no current flows to the press operation circuit 10, making operation impossible. (3) Also, the pressure switch PSI is turned on and the key switch is turned on.
When KSI is off, the first relay R1 is on and the second relay R2 is off, so the relay contact R1-
1 is off, relay contacts R1-2 and R2-1 are on,
Relay contacts R2-2 and R2-3 are turned off, and when the slide crank angle is in the range of 10° to 180° (before bottom dead center), the rotary cam switch is turned off.
Contact A of the LSI is turned on, and the current flows to relay contact R.
1-1, contact A, and relay contact R2-1 to flow into the press operation circuit 10, allowing normal rotation operation. Further, when the crank angle of the slide is in the range of 180° to 10° (after bottom dead center), contact A of the rotary cam switch LSI is turned off, and no current flows to the press operation circuit 10, making operation impossible. (4) Also, the pressure switch PSI is turned off and the key switch is turned off.
When KSI is on, the first relay R1 is off, the second relay R2 is on, relay contact R1-1 is on, relay contacts R1-2, R2-1 are off, relay contacts R2-2, R2-3 is turned on, and when the crank angle of the slide is in the range of 10° to 180° (before bottom dead center), contact B of the rotary cam switch LSI is turned on, and the current flows to relay contacts R1-2,
It flows into the press operation circuit 10 through contact B and relay contact R2-3, allowing reverse operation. Also, if the slide crank angle is in the range of 180° to 10° (after bottom dead center), the rotary cam switch
Contact B of the LSI is cut off, and no current flows to the operating circuit 10, making it impossible to operate. The above operation is displayed as shown in the table below.
【表】
すなわち、オーバーロードでなく（圧力スイ
ツチPSIが切）逆転が選択されていない（キー
スイツチKSIが切）の場合はロータリカムスイ
ツチLSIの入、切に関係なく正転が選択され
る。（(1)、表(1)参照）。
また、オーバーロード時（圧力スイツチPSI
が入）、ロータリカムスイツチLSIの入、切の
状態によりキースイツチKSIを選択して正転、
逆転運転を行う（(2)、(3)表(2)(3)参照）
また逆転を選択する場合（キースイツチKSI
が入）、圧力スイツチPSIの入、切に関係なく
ロータリカムスイツチLSIの入の時逆転運転を
行うことができる。
本考案は以上詳述したように、リレー回路に設
けられてプレスオーバーロード時入になる圧力ス
イツチPSIと、リレー回路に設けられて逆転運転
操作を選択するキースイツチKSIと、リレー回路
に設けられて圧力スイツチPSIの入作動時入とな
る第１リレーＲ１と、リレー回路に設けられてキ
ースイツチKSIの入作動時入となる第２リレーＲ
２と、電源１１と、プレス運転回路１０と、スラ
イドのクランク角度が10゜〜180゜の範囲で入と
なる接点Ｂ及びクランク角度が180゜〜10゜の範
囲で入となる接点Ａを有するロータリカムスイツ
チLSIとを備え、電源１１を第１リレーＲ１の常
閉のリレー接点Ｒ１−１及び第２リレーＲ２の常
閉のリレー接点Ｒ２−１を介してプレス運転回路
１０に接続し、電源１１を第１リレーＲ１の常開
のリレー接点Ｒ１−２とロータリカムスイツチ
LSIの接点Ｂと第２リレーＲ２の常開のリレー接
点Ｒ２−３を介してプレス運転回路１０に接続
し、電源１１を第１リレーＲ１の常閉のリレー接
点Ｒ１−１と第２リレーＲ１の常開のリレー接点
Ｒ２−２とロータリカムスイツチLSIの接点Ｂと
第２リレーＲ２の常開のリレー接点Ｒ２−３とを
介してプレス運転回路１０に接続し、電源１１を
第１リレーＲ１の常閉のリレー接点Ｒ１−１とロ
ータリカムスイツチLSIの接点Ａ，Ｂと第２リレ
ーＲ２の常開のリレー接点Ｒ２−３とを介してプ
レス運転回路１０に接続したことを特徴とするも
のである。
したがつて、オーバーロードでなく（圧力スイ
ツチPSIが切）逆転が選択されていない（キース
イツチKSIが切）の場合はロータリカムスイツチ
LSIの入、切に関係なく正転を選択することがで
きるし、また、オーバーロード時（圧力スイツチ
PSIが入）、ロータリカムスイツチLSIの入、切の
状態によりキースイツチKSIを選択して正転、逆
転運転を行うことができる。
また逆転を選択する場合（キースイツチKSIが
入）、圧力スイツチPSIの入、切に関係なくロー
タリカムスイツチLSIの入の時逆転運転を行うこ
とができる。
このためにスライド停止位置が下死点を過ぎた
角度（180゜〜10゜）では逆転運転を行うことは
できず、またプレスオーバーロード時スライドが
下死点手前で停止した場合キースイツチKSIを選
択して逆転運転を行い、プレス機械及び金型損傷
等の危険を回避することができる。[Table] In other words, if there is no overload (pressure switch PSI is off) and reverse rotation is not selected (key switch KSI is off), forward rotation is selected regardless of whether the rotary cam switch LSI is on or off. (See (1), Table (1)). Also, when overloaded (pressure switch PSI
is on), the key switch KSI is selected depending on the on/off state of the rotary cam switch LSI, and forward rotation is performed.
To perform reverse operation (see (2), (3) Tables (2) and (3)) or to select reverse operation (key switch KSI
(on), reverse operation can be performed when the rotary cam switch LSI is on, regardless of whether the pressure switch PSI is on or off. As detailed above, the present invention consists of a pressure switch PSI installed in the relay circuit that turns on when the press overloads, a key switch KSI installed in the relay circuit that selects reverse operation operation, and a pressure switch PSI installed in the relay circuit to select reverse operation operation. A first relay R1 that turns on when the pressure switch PSI is turned on, and a second relay R that is installed in the relay circuit and turns on when the key switch KSI is turned on.
2, a power source 11, a press operation circuit 10, a contact B that is turned on when the crank angle of the slide is in the range of 10° to 180°, and a contact point A that is turned on when the crank angle of the slide is in the range of 180° to 10°. The power supply 11 is connected to the press operation circuit 10 via the normally closed relay contact R1-1 of the first relay R1 and the normally closed relay contact R2-1 of the second relay R2. 11 is the normally open relay contact R1-2 of the first relay R1 and the rotary cam switch.
The power supply 11 is connected to the press operation circuit 10 via the contact B of the LSI and the normally open relay contact R2-3 of the second relay R2, and the power supply 11 is connected to the normally closed relay contact R1-1 of the first relay R1 and the second relay R1. The power supply 11 is connected to the press operation circuit 10 through the normally open relay contact R2-2 of the rotary cam switch LSI, the contact B of the rotary cam switch LSI, and the normally open relay contact R2-3 of the second relay R2. It is characterized in that it is connected to the press operation circuit 10 through the normally closed relay contact R1-1 of the rotary cam switch LSI, the contacts A and B of the rotary cam switch LSI, and the normally open relay contact R2-3 of the second relay R2. It is. Therefore, if there is no overload (pressure switch PSI is off) and reverse is not selected (key switch KSI is off), the rotary cam switch
Normal rotation can be selected regardless of whether the LSI is on or off, and when overloaded (pressure switch
PSI is on), and the key switch KSI can be selected depending on the on/off state of the rotary cam switch LSI to perform forward or reverse rotation. When selecting reverse rotation (key switch KSI is turned on), reverse operation can be performed when the rotary cam switch LSI is turned on, regardless of whether the pressure switch PSI is turned on or off. For this reason, reverse operation cannot be performed when the slide stop position is at an angle past the bottom dead center (180° to 10°), and if the slide stops before the bottom dead center during press overload, select the key switch KSI. It is possible to avoid dangers such as damage to the press machine and the mold by performing reverse operation.
図面は本考案の一実施例を示し、第１図はリレ
ー回路の説明図、第２図はプレス非常停止回路の
説明図、第３図はクランク角度、スライドストロ
ークとロータリカムスイツチの関係図である。
PSIは圧力スイツチ、KSIはキースイツチ、LSI
はロータリカムスイツチ、Ｒ１は第１リレー、Ｒ
２は第２リレー。
The drawings show one embodiment of the present invention; Fig. 1 is an explanatory diagram of a relay circuit, Fig. 2 is an explanatory diagram of a press emergency stop circuit, and Fig. 3 is a diagram of the relationship between crank angle, slide stroke, and rotary cam switch. be. PSI is pressure switch, KSI is key switch, LSI
is the rotary cam switch, R1 is the first relay, R
2 is the second relay.
Claims (1)
時入になる圧力スイツチPSIと、リレー回路に設
けられて逆転運転操作を選択するキースイツチ
KSIと、リレー回路に設けられて圧力スイツチ
PSIの入作動時入となる第１リレーＲ１と、リレ
ー回路に設けられてキースイツチKSIの入作動時
入となる第２リレーＲ２と、電源１１と、プレス
運転回路１０と、スライドのクランク角度が10゜
〜180゜の範囲で入となる接点Ｂ及びクランク角
度が180゜〜10゜の範囲で入となる接点Ａを有す
るロータリカムスイツチLSIとを備え、電源１１
を第１リレーＲ１の常閉のリレー接点Ｒ１−１及
び第２リレーＲ２の常閉のリレー接点Ｒ２−１を
介してプレス運転回路１０に接続し、電源１１を
第１リレーＲ１の常開のリレー接点Ｒ１−２とロ
ータリカムスイツチLSIの接点Ｂと第２リレーＲ
２の常開のリレー接点Ｒ２−３を介してプレス運
転回路１０に接続し、電源１１を第１リレーＲ１
の常閉のリレー接点Ｒ１−１と第２リレーＲ１の
常開のリレー接点Ｒ２−２とロータリカムスイツ
チLSIの接点Ｂと第２リレーＲ２の常開のリレー
接点Ｒ２−３とを介してプレス運転回路１０に接
続し、電源１１を第１リレーＲ１の常閉のリレー
接点Ｒ１−１とロータリカムスイツチLSIの接点
Ａ，Ｂと第２リレーＲ２の常開のリレー接点Ｒ２
−３とを介してプレス運転回路１０に接続したこ
とを特徴とするプレス機械の逆転判別回路装置。 A pressure switch PSI installed in the relay circuit that turns on when the press overloads, and a key switch installed in the relay circuit that selects reverse operation operation.
KSI and pressure switch provided in the relay circuit
The first relay R1 is turned on when the PSI is turned on, the second relay R2 is installed in the relay circuit and turned on when the key switch KSI is turned on, the power supply 11, the press operation circuit 10, and the crank angle of the slide are connected. It is equipped with a rotary cam switch LSI having a contact B that turns on when the crank angle is in the range of 10° to 180° and a contact A that turns on when the crank angle is in the range of 180° to 10°.
is connected to the press operation circuit 10 via the normally closed relay contact R1-1 of the first relay R1 and the normally closed relay contact R2-1 of the second relay R2, and the power supply 11 is connected to the normally open relay contact R1-1 of the first relay R1. Relay contact R1-2, rotary cam switch LSI contact B and second relay R
The power supply 11 is connected to the press operation circuit 10 through the normally open relay contact R2-3 of No. 2, and the power supply 11 is connected to the first relay R1.
Press through the normally closed relay contact R1-1 of the second relay R1, the normally open relay contact R2-2 of the second relay R1, the contact B of the rotary cam switch LSI, and the normally open relay contact R2-3 of the second relay R2. Connect the power supply 11 to the operating circuit 10 and connect the normally closed relay contact R1-1 of the first relay R1, the contacts A and B of the rotary cam switch LSI, and the normally open relay contact R2 of the second relay R2.
1. A reversal determination circuit device for a press machine, characterized in that it is connected to a press operation circuit 10 via -3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17951483U JPS6089998U (en) | 1983-11-22 | 1983-11-22 | Reverse rotation determination circuit device for press machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17951483U JPS6089998U (en) | 1983-11-22 | 1983-11-22 | Reverse rotation determination circuit device for press machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6089998U JPS6089998U (en) | 1985-06-20 |
| JPS624400Y2 true JPS624400Y2 (en) | 1987-01-31 |
Family
ID=30389477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17951483U Granted JPS6089998U (en) | 1983-11-22 | 1983-11-22 | Reverse rotation determination circuit device for press machines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6089998U (en) |
-
1983
- 1983-11-22 JP JP17951483U patent/JPS6089998U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6089998U (en) | 1985-06-20 |
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