CN213985579U

CN213985579U - Anti-overflow device of vacuum press

Info

Publication number: CN213985579U
Application number: CN202120172902.9U
Authority: CN
Inventors: 刘传兵; 郭道九; 刘建雷
Original assignee: Zhejiang Yuanji New Material Co ltd
Current assignee: Zhejiang Yuanji New Material Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-08-17
Anticipated expiration: 2031-01-21

Abstract

The application relates to an overflow leakage prevention device of a vacuum press, which relates to the technical field of copper-clad plate production equipment and comprises an alarm device, wherein the alarm device comprises a switch circuit and an alarm circuit, the switch circuit is used for detecting the oil level leaked in a press machine cavity, and when the oil level exceeds a set threshold value, a corresponding switch signal is output; the alarm circuit is connected with the switch circuit and is used for receiving the switch signal; the alarm circuit comprises an indicator light and a buzzer, and the indicator light and the buzzer are both connected with the switch circuit. When the oil level that this application during operation leaked in the press machine intracavity surpassed predetermined threshold value, switch circuit can control the pilot lamp and send the light suggestion and the buzzer suggestion of making a sound to in time send out the police dispatch newspaper to the oil leak condition, overhaul with the suggestion staff, thereby ensure that the press can normally work.

Description

Anti-overflow device of vacuum press

Technical Field

The application relates to the technical field of copper-clad plate production equipment, in particular to an anti-overflow and anti-leakage device of a vacuum press.

Background

The copper clad laminate is a plate-shaped material prepared by impregnating electronic glass fiber cloth or other reinforcing materials with resin, coating copper foil on one or both surfaces of the electronic glass fiber cloth or other reinforcing materials, and performing hot pressing, and is called as a copper clad laminate.

The vacuum press is a mechanical device for pressing multiple layers of substances under a vacuum condition, and is one of common devices for producing copper-clad plates.

At present, an actuating element of a vacuum press is generally a press oil cylinder which is usually arranged in a press cavity, and for the press oil cylinder, oil leakage is the most common fault, when oil leakage occurs in a plurality of pipelines or a certain pipeline in the press oil cylinder, if a worker cannot find out the oil leakage condition in the press cavity in time, the boiler is lack of oil, and therefore normal work of the press is affected.

SUMMERY OF THE UTILITY MODEL

In order to send out the warning in time when the press oil leak, this application provides a vacuum press anti-overflow leaks device.

The application provides a vacuum press prevents overflow and leaks device adopts following technical scheme:

the utility model provides a vacuum press anti-overflow leaks device, includes alarm device, alarm device includes:

the switching circuit is used for detecting the oil level leaked in the press cavity and outputting a corresponding switching signal when the oil level exceeds a set threshold value; and the number of the first and second groups,

the alarm circuit is connected with the switch circuit and is used for receiving the switch signal;

the alarm circuit comprises an indicator light and a buzzer, and the indicator light and the buzzer are both connected with the switch circuit.

Through adopting above-mentioned technical scheme, when the oil level of press machine intracavity leakage exceeded predetermined threshold value, switching circuit can control the pilot lamp and send the light suggestion and the buzzer sound suggestion to in time send out the police dispatch newspaper to the oil leak condition, overhaul with the suggestion staff, thereby ensure that the press can normally work.

Optionally, the switch circuit includes a float switch disposed in the press machine cavity;

the float switch, the indicator light and the buzzer are connected in series in the same power supply loop.

Through adopting above-mentioned technical scheme, utilize float switch to detect the oil level in the press machine intracavity, when the oil level in the press machine intracavity surpassed predetermined threshold value, float switch can start pilot lamp and bee calling organ, and float switch need not the power supply, and has advantages such as the reaction is sensitive, the response is timely.

Optionally, the switch circuit further includes a first micro switch, the first micro switch is located outside the press machine cavity, and the first micro switch, the float switch, the indicator light and the buzzer are connected in series in the same power supply loop.

Through adopting above-mentioned technical scheme, when the staff learns the oil leak condition and come to overhaul, can utilize first micro-gap switch to close bee calling organ and pilot lamp, conveniently overhaul work.

Optionally, the switch circuit includes a liquid level sensor and a switch, the liquid level sensor is a capacitive liquid level sensor, the capacitive liquid level sensor is connected to the switch, and the capacitive liquid level sensor is disposed on an outer wall of the cavity of the press; the switch, the indicator light and the buzzer are connected in series in the same power supply loop.

Through adopting above-mentioned technical scheme, capacitanc level sensor pastes and carries out liquid level detection at press machine chamber outer wall, need not to stretch into inside the press machine chamber, also need not with fluid direct contact to reduce the corruption to the sensor, prolonged its life.

Optionally, the switch is a first triode, a base of the first triode is connected in series with the capacitive liquid level sensor and then is connected to a power supply, and the indicator light and the buzzer are connected in series in a loop of an input end and an output end of the first triode.

Through adopting above-mentioned technical scheme, when the oil level in the press machine intracavity exceeded predetermined threshold value, first triode was switched on to make pilot lamp and bee calling organ switch on, have the response fast, contactless advantage.

Optionally, the alarm circuit further includes a timer circuit, the timer circuit includes a timer, an input end of the timer is connected to the loop of the input end and the output end of the first triode, and the indicator light is connected to the output end of the timer.

Through adopting above-mentioned technical scheme, when first triode switched on, the pilot lamp can twinkle, and in noisy operational environment, the pilot lamp of scintillation is more obvious, and is observed by the staff more easily.

Optionally, the output end of the timer is connected with an amplifying circuit, the amplifying circuit includes a second triode, a base of the second triode is connected with the output end of the timer, the indicator light is an LED light, and the LED light is connected in series in a loop of the input end and the output end of the second triode.

Through adopting above-mentioned technical scheme, utilize the second triode to amplify the output signal of timer for the pilot lamp scintillation is more obvious.

Optionally, a second microswitch is connected in series in a loop of the input end and the output end of the first triode.

Through adopting above-mentioned technical scheme, when the staff learns the oil leak condition and come to overhaul, can utilize the second micro-gap switch to close bee calling organ and pilot lamp, conveniently overhaul work.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the oil level leaked in the cavity of the press machine exceeds a preset threshold value, the switch circuit can control the indicator light to give out a light prompt and the buzzer to give out a sound prompt, so that an oil leakage condition is timely alarmed, workers are prompted to overhaul, and the press machine can normally work;

2. the oil level in the press machine cavity is detected by using the float switch, when the oil level in the press machine cavity exceeds a preset threshold value, the float switch can start the indicator lamp and the buzzer, and the float switch does not need to supply power and has the advantages of sensitive response, timely response and the like;

3. the capacitive liquid level sensor is attached to the outer wall of the cavity of the press machine to detect the liquid level, does not need to extend into the cavity of the press machine and does not need to be in direct contact with oil, so that the corrosion to the sensor is reduced, and the service life of the sensor is prolonged.

Drawings

FIG. 1 is a schematic overall structure diagram of a first embodiment of the present application;

fig. 2 is a schematic circuit structure diagram of a second embodiment of the present application.

Reference numerals: 1. a press cylinder; 2. a press cavity; 3. a switching circuit; 4. an alarm circuit; 5. an amplifying circuit; 6. a float switch.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The first embodiment is as follows:

referring to fig. 1, a vacuum press includes a press cylinder 1, the press cylinder 1 being mounted within a press cavity 2.

Referring to fig. 1, the first embodiment discloses a vacuum press overflow-proof device, which comprises an alarm device, wherein the alarm device comprises a switch circuit 3 and an alarm circuit 4.

The switch circuit 3 comprises a float switch 6 with the model of PMS-1173-2 and a first microswitch BZ1 with the model of JC-TS 108V. The float switch 6 is arranged in the press machine cavity 2 and is used for detecting the oil level leaked in the press machine cavity 2; a first microswitch BZ1 is located outside the press chamber 2 and is used to control the switching of the alarm circuit 4.

The alarm circuit 4 comprises an indicator light and a buzzer HA, the indicator light, the buzzer HA, the first microswitch BZ1 and the float switch 6 are all connected in series in the same power supply loop, and the initial state of the first microswitch BZ1 is a closed state.

When the oil level leaked in the press machine cavity 2 exceeds a preset threshold value, the float switch 6 is closed, so that the indicator lamp and the buzzer HA are electrified, and an alarm is given out to prompt a worker. When workers know that the oil leakage condition is overhauled, the first microswitch BZ1 outside the machine cavity can be switched off, so that the buzzer HA and the indicator lamp are turned off. After the pipeline of the press oil cylinder 1 is overhauled and oil leaked in the press cavity 2 is disposed by a worker, the float switch 6 is automatically disconnected along with the reduction of the liquid level, then the first microswitch BZ1 is closed, and the device can work again.

Example two:

referring to fig. 2, the present embodiment is different from the first embodiment in that the switch circuit 3 includes a liquid level sensor and a switch member. The liquid level sensor adopts a capacitive liquid level sensor with the model number of D1CS-D, and the capacitive liquid level sensor is fixed on the outer wall of the press machine cavity 2. The capacitive level sensor is used to detect the oil level in the press chamber 2, which causes a change in its capacitance when the level of the oil level in the press chamber changes.

The switch element is a first triode Q1, and the first triode Q1 is an NPN type triode. The base electrode of the first triode Q1 is connected with the capacitance type liquid level sensor in series and then is connected with a power supply; a collector of the first triode Q1 is connected with a power supply, a collector of the first triode Q1 is connected with a second microswitch BZ2 with the model number JC-TS108V in series, and the initial state of the second microswitch BZ2 is a closed state; the emitter of the first transistor Q1 is grounded.

The alarm circuit 4 includes an LED indicator, a buzzer HA, and a timing circuit. The buzzer HA is connected in series with the emitter of the first triode Q1; the timing circuit comprises a 555 timer, a second pin of the 555 timer is connected into an emitter of the first triode Q1, and a third pin of the 555 timer is connected with the amplifying circuit 5.

The amplifying circuit 5 comprises an NPN-type second triode Q2, a base of the second triode Q2 is connected with the third pin of the timer, and a protective resistor R3 is connected in series between the base of the second triode Q2 and the third pin of the timer. The emitter of the second triode Q2 is grounded, the collector of the second triode Q2 is connected to the power supply of the timer, and the collector of the second triode Q2 is also connected in series with a protection resistor R4. The LED indicator lamp is connected in series with the collector of the second triode Q2.

When the oil level leaked in the press machine cavity 2 exceeds a preset threshold value, the capacitance type liquid level sensor outputs a high level, and a first triode Q1 is conducted, so that the timer and the buzzer HA are electrified, the buzzer HA sends an alarm sound, and the LED indicating lamp begins to flicker. When the staff knows that the oil leakage condition comes to overhaul, the second microswitch BZ2 can be switched off, so that the buzzer HA and the LED indicating lamp are switched off. After the staff overhauld 1 pipeline of press hydro-cylinder and accomplished and handled the oil that leaks in the press machine chamber 2, capacitanc level sensor can export the low level along with the liquid level reduction to the first triode Q1 of disconnection, the second micro-gap switch BZ2 of later reclosing, the device can work once more.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a vacuum press anti-overflow leaks device which characterized in that, includes alarm device, alarm device includes:

the switching circuit (3) is used for detecting the oil level leaked in the press cavity (2) and outputting a corresponding switching signal when the oil level exceeds a set threshold value; and the number of the first and second groups,

an alarm circuit (4) connected to the switching circuit (3) and configured to receive the switching signal;

the alarm circuit (4) comprises an indicator light and a buzzer, and the indicator light and the buzzer are both connected with the switch circuit (3).

2. The vacuum press overflow-proof device of claim 1, characterized in that the switch circuit (3) comprises a float switch (6) arranged in the press cavity (2);

the floating ball switch (6), the indicator light and the buzzer are connected in series in the same power supply loop.

3. The vacuum press overflow leakage prevention device according to claim 2, wherein the switch circuit (3) further comprises a first micro switch, the first micro switch is located outside the press machine cavity (2), and the first micro switch, the float switch (6), the indicator light and the buzzer are connected in series in the same power supply loop.

4. The vacuum press overflow leakage prevention device according to claim 1, wherein the switch circuit (3) comprises a liquid level sensor and a switch, the liquid level sensor is a capacitive liquid level sensor, the capacitive liquid level sensor is connected with the switch, and the capacitive liquid level sensor is arranged on the outer wall of the press cavity (2); the switch, the indicator light and the buzzer are connected in series in the same power supply loop.

5. The vacuum press overflow leakage prevention device as claimed in claim 4, wherein the switch is a first triode, a base of the first triode is connected in series with the capacitive liquid level sensor and then connected to a power supply, and the indicator light and the buzzer are connected in series in a loop between an input end and an output end of the first triode.

6. The vacuum press overflow prevention device of claim 5, wherein the alarm circuit (4) further comprises a timing circuit, the timing circuit comprises a timer, an input end of the timer is connected to a loop of the input end and the output end of the first triode, and the indicator light is connected to an output end of the timer.

7. The vacuum press overflow leakage prevention device according to claim 6, wherein the timer output end is connected with an amplifying circuit (5), the amplifying circuit (5) comprises a second triode, the base of the second triode is connected with the output end of the timer, the indicator light is an LED light, and the LED light is connected in series in a loop of the input end and the output end of the second triode.

8. The vacuum press overflow leakage prevention device as claimed in claim 5, wherein a second microswitch is connected in series in the loop of the input end and the output end of the first triode.