CN211390307U

CN211390307U - Extrusion system and extruder economizer thereof

Info

Publication number: CN211390307U
Application number: CN201922337260.9U
Authority: CN
Inventors: 曹烈铭
Original assignee: Southwest Aluminum Group Co Ltd
Current assignee: Southwest Aluminum Group Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-09-01
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses an extrusion system and an extruder energy-saving device thereof, wherein the extruder energy-saving device comprises a detection device, a soft starter, a controllable switch and a control device; the detection device is used for detecting the running state of the motor and sending a no-load instruction to the control device when the motor is in a no-load state; the power end of the soft starter is connected with a power supply, the control end of the soft starter is connected with the motor, and the enable end of the soft starter is connected with the controllable switch; the control device is used for controlling the controllable switch to be switched off after receiving the no-load instruction. By the extruder energy-saving device, the motor in the no-load state can be controlled to stop running when the extruder is in the extrusion process, and the energy-saving effect is achieved.

Description

Extrusion system and extruder economizer thereof

Technical Field

The utility model relates to a material extrusion technical field, more specifically say, relate to an extruder economizer. Furthermore, the utility model discloses still relate to an extrusion system including above-mentioned extruder economizer.

Background

At present, an extruder above 12.5N is provided with two motors, the two motors of the extruder need to output power in an auxiliary process, one motor is always enough to output power when the extruder is in an extrusion process, and the other motor is in a no-load state, so that the problems of energy waste and low energy utilization rate are caused.

In summary, how to save energy in the extrusion process is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an extruder economizer, it can be in the motor bring to rest of no-load state originally when the extruder is in extrusion process to it is extravagant to reduce the energy. Another object of the utility model is to provide an extrusion system including above-mentioned extruder economizer.

In order to achieve the above object, the present invention provides the following technical solutions:

an extruder economizer comprising:

the detection device is used for detecting the running state of the motor and sending a no-load instruction to the control device when the motor is in the no-load state;

the soft starter is characterized in that a power end of the soft starter is connected with a power supply, a control end of the soft starter is connected with the motor, and an enable end of the soft starter is connected with the controllable switch;

and the control device is used for controlling the controllable switch to be disconnected after receiving the no-load instruction, and is connected with the controllable switch.

Preferably, the soft starter comprises a fault detection module for controlling the controllable switch to be disconnected after receiving a motor fault signal, wherein one end of the fault detection module is connected with the motor, and the other end of the fault detection module is connected with the control device.

Preferably, a fuse is arranged between the power end of the soft starter and the power supply.

Preferably, the detection means includes a pressure sensor for detecting the pressure of the motor.

Preferably, the controllable switch is a relay.

Preferably, the motor control device further comprises a display device for generating corresponding display information according to the running state of the motor.

Preferably, the soft starter further comprises a start confirmation module for controlling the display device to generate corresponding display information after receiving the motor operation signal, wherein one end of the start confirmation module is connected with the motor, and the other end of the start confirmation module is connected with the display device.

Preferably, the display device comprises an indicator light.

An extrusion system comprises a motor, an extruder and any one of the extruder energy-saving devices.

Through above-mentioned scheme, the extruder economizer that this application provided's beneficial effect lies in:

the application provides an extruder economizer includes detection device, the soft starter, controllable switch, controlling means, in the course of the work, detection device detects the running state of motor, and send no-load instruction to controlling means when the motor is in no-load state, controlling means controls the disconnection of controllable switch after receiving no-load instruction, controllable switch is connected with the enable end of soft starter, and the power end and the power supply of soft starter are connected, the control end is connected with the motor, then after the disconnection of controllable switch, the motor stops the operation. The extruder energy-saving device can control the motor to stop running when the motor is in an idle state, so that the energy-saving effect is realized.

In addition, it should be understood that the extrusion system provided by the present application includes the extruder economizer described above, and therefore, the extrusion system provided by the present application also has the beneficial effects described above.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a circuit diagram of an energy saving device of an extruder provided by the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The application provides an extrusion system includes motor, extruder economizer. The working process of the extruder mainly comprises an extrusion process and an auxiliary process. The extrusion system is provided with two motors, the first motor runs for a long time and needs to output work in the extrusion process and the auxiliary process; the second motor only outputs work in the auxiliary process, and is in an idle state in the extrusion process, and the motor connected with the energy-saving device of the extruder is particularly the second motor.

Referring to fig. 1, the energy saving device of an extruder provided by the present application includes a detection device, a soft starter RQ, a controllable switch KA, and a control device.

The detection device is used for detecting the running state of the motor and sending a no-load instruction to the control device when the motor is in the no-load state. The pressure of the motor in the work output state is different from that in the no-load state, and the detection device can specifically adopt a pressure sensor and send the detected result to the control device.

The soft starter RQ is provided with a power supply end, a control end and an enabling end. Wherein, the control end is connected with the motor, namely is connected with a second motor of the extrusion system. The enabling end is connected with the controllable switch KA. The power supply end is connected with a power supply, and the power supply can be a three-phase power grid; optionally, be equipped with fuse FU between soft starter RQ's power end and the power supply, when the power supply short circuit, fuse FU automatic disconnection cuts off soft starter RQ's power, plays the guard action. Optionally, a circuit breaker QF can be arranged in a cable between the power supply and the power supply end, and the circuit breaker QF can be used for equipment maintenance and can also be automatically disconnected when the motor is overloaded. Optionally, a current transformer TA, an ammeter a, etc. may also be provided to display the output current of the power supply.

The controllable switch KA is used for controlling enabling of the soft starter RQ, the controllable switch KA is connected with the control device, and on-off of the controllable switch KA is controlled by the control device. When the controllable switch KA is powered on and closed, the soft starter RQ can operate, and when the controllable switch KA is powered off and disconnected, the soft starter RQ cannot work. In practical use, the controllable switch KA may specifically adopt a relay.

The control device is used for controlling the controllable switch KA to be switched off after receiving the no-load instruction. The control device may specifically employ a PLC.

Optionally, when the extrusion system operates, the extruder may cyclically perform the extrusion process and the auxiliary process, so that in order to ensure that the motor outputs work in the auxiliary process, the detection device may also send a work output instruction to the control device after the extrusion process is finished, that is, when the extruder enters the auxiliary process; accordingly, the control device restarts the stopped motor after receiving the power-off command.

When the motor is started for the first time, a motor starting and stopping signal can be transmitted to the control device through the starting button, the control device judges whether the extruder is in an extruding state or not according to a detection result of the detection device, and then the motor in an idle state is reasonably stopped through a program; when the extrusion is finished, the control device automatically restarts the stopped motor again, and the auxiliary process is started again, so that the circular production is realized.

Taking a 90kW motor as an example, such as a motor of Y280-4-B35 model, only 1/3 of time is doing work in one extrusion cycle, and the rest is in an idle state, the energy-saving device of the extruder can stop the motor in the idle state, so that 20kWh of electricity can be saved in each hour, 480kWh of electricity can be saved in each day, and 17 ten thousand degrees of electricity can be saved in each year.

The application provides an extruder economizer has that the control principle is simple, the investment is few, the interference is little, the response is fast, the trouble is few, the good characteristics of energy-conserving effect, can enough satisfy the real-time production needs of extruder, also can reach energy-conserving purpose, has higher spreading value in aluminium extruder.

Optionally, in order to implement overload protection for the motor, in a preferred embodiment provided by the present application, the soft starter RQ includes a fault detection module for controlling the controllable switch KA to be turned off after receiving a motor fault signal, where one end (i.e., a port 96 in the drawing) of the fault detection module is connected to the motor, and the other end (i.e., a port 95 in the drawing) of the fault detection module is connected to the control device.

Specifically, the working circuit of the motor has an overload protection function, and when overload occurs to voltage, current or the like, the motor sends a motor fault signal to a fault detection module of the soft starter RQ. At the moment, the soft starter RQ reports a fault, a fault detection module of the soft starter RQ sends a fault signal I14.0 to the control device, and the control device cuts off the controllable switch KA when receiving the fault signal I14.0, so that the motor stops rotating.

Optionally, in order to facilitate the user to know the operation state of the motor, the energy-saving device of the extruder further comprises a display device. Specifically, the display device is used for generating corresponding display information according to the running state of the motor, and the display device may specifically adopt an indicator light or other prompting tools.

Optionally, in an embodiment provided by the present application, the soft starter RQ further includes a start confirmation module, where the start confirmation module is configured to control the display device to generate corresponding display information after receiving the motor operation signal, and one end (i.e., a port 24 in the drawing) of the start confirmation module is connected to the motor, and the other end (i.e., a port 23 in the drawing) of the start confirmation module is connected to the display device.

Specifically, when the motor normally runs, the starting circuit of the motor transmits a signal to the starting confirmation module, the port 23 is communicated with the port 24, the starting confirmation module sends a motor starting normal signal I14.1 to the display device, and the display information of the display device is that the indicator light is on, so that a user is prompted that the motor is normal. When the motor runs abnormally, the starting circuit of the motor transmits a signal to the starting confirmation module, at the moment, the port 23 is disconnected with the port 24, and the display information of the display device is that the indicator light is turned off to prompt a user that the motor is abnormal.

During actual design, the confirmation module can be started to be directly connected with the display device and transmit signals; the starting device may be indirectly connected to the display device through the control device to transmit the signal.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is right above that the utility model provides an extrusion system and extruder economizer thereof have carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. An extruder economizer, comprising:

2. The extruder economizer of claim 1 wherein the soft starter includes a fault detection module for controlling the controllable switch to open upon receipt of a motor fault signal, the fault detection module being connected at one end to the motor and at the other end to the control means.

3. The extruder economizer of claim 2 wherein a fuse is provided between the power terminals of the soft starter and the power supply.

4. Extruder economizer according to claim 3, characterized in that the detection means comprise a pressure sensor for detecting the motor pressure.

5. Extruder economizer according to claim 4, characterized in that the controllable switch is a relay.

6. The extruder energy saving device of any one of claims 1 to 5, further comprising a display device for generating corresponding display information according to the operation state of the motor.

7. The extruder energy-saving device of claim 6, wherein the soft starter further comprises a start confirmation module for controlling the display device to generate corresponding display information after receiving a motor operation signal, and one end of the start confirmation module is connected with the motor and the other end of the start confirmation module is connected with the display device.

8. The extruder economizer of claim 7 wherein the display device comprises an indicator light.

9. An extrusion system comprising a motor, an extruder, and further comprising the extruder economizer of any one of claims 1-8.