JP2002224796A - Operation monitoring system for core making machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system for monitoring the operation of a core making machine or a core making machine with a malodorous gas disposal unit and transmitting information on the operation to remote places. SOLUTION: The invented monitoring system consists of a sensor determining the desired attribute relating to the core making machine or the core making machine with the malodorous gas disposal unit, a local unit transmitting signals corresponding to the desired attribute determined by the sensor, on a communication network, and a remote unit which is connected to the communication network, indicates the desired attribute relating to the core making machine or the core making machine with the malodorous gas disposal unit by receiving the signals corresponding to the desired attribute from the local unit and monitors the core making machine or the core making machine with the malodorous gas disposal unit at the least during the operation of the core making machine or the core making machine with the malodorous gas disposal unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation monitoring and monitoring system for a core molding machine capable of transmitting and receiving operation information to and from a communication network at a remote place remote from a site.

[0002]

2. Description of the Related Art At present, labor saving is progressing in a foundry. Therefore, for such labor-saving equipment,
There is a demand for understanding how a core molding machine used for core production or a core molding machine with an odorous gas processing apparatus is actually operated.

[0003]

However, in a conventional core molding machine or a core molding machine with an odor gas treatment device, data on long-term operation could not be accumulated. For this reason, it is not enough to obtain information on how the core molding machine or the core molding machine with the odor gas treatment device is operated on a daily basis.

[0004] Furthermore, since there is no daily accumulation of information on information on the regular or preventive maintenance of the core molding machine or the core molding machine with an odor gas treatment device, for example, excessive repairs may be performed. This was insufficient for improving maintenance, for example, the core molding machine or the core molding machine with an odor gas treatment device was operated until it was stopped due to a failure, resulting in a decrease in efficiency. As described above, a foundry needs information on the operation of a core molding machine or a core molding machine with an odorous gas treatment device.

The present invention has been made in view of the above problems, and at least at the time of operation, monitors the core molding machine or the core molding machine with an odorous gas treatment device, and transmits the operation information to a remote location. It is an object of the present invention to provide a core molding machine operation monitoring and monitoring system for transmitting to a user.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, an operation monitoring and monitoring system for a core molding machine according to the present invention has a desired attribute relating to a core molding machine or a core molding machine with an odor gas treatment device. , A local unit for transmitting a signal corresponding to a desired attribute measured by the sensor on a communication network, and a local unit connected to the communication network and receiving a desired signal from the local unit. In response to the signal corresponding to the attribute, a desired attribute relating to the core molding machine or the core molding machine with the odor gas processing device is displayed, and at least the operation of the core molding machine or the core molding machine with the odor gas processing device is performed. And a remote unit for monitoring the core molding machine or the core molding machine with an odorous gas processing device.

According to the present invention, during operation, data collected from a core molding machine or a core molding machine with an odor gas treatment device can be sent to a remote location for analysis as operation information. Also, based on the analysis result, core sand blowing data, mold data, odorous gas processing data, and the like can be displayed by selection.

Here, in the present invention, the core molding machine is:
A core is formed by blowing core sand into a mold (including the main mold when molding the main mold). For example, a shell machine, a cold box molding machine, and a green core Refers to molding machines.

The desired attributes relating to the core molding machine in the present invention include, for example, core sand blowing data, mold data, and the like. Here, the core sand blowing data refers to, for example, blow pressure, blow time, air pressure in a blow tank, air pressure in a blow head, and the like. Also mold data
The term refers to, for example, mold type (mold number), mold temperature, and the like.

Further, the desired attribute relating to the odor gas processing apparatus in the present invention means, for example, odor gas processing data. Here, the odorous gas processing data means, for example, odorous gas preheating temperature, odorous gas concentration value, odorous gas combustion temperature, and the like.

Further, the sensors for measurement in the present invention include, for example, a pressure sensor, a temperature sensor, a counter, a proximity switch, a limit switch, a timer, a concentration detection sensor, and the like, and can measure an attribute of operation. Other types of sensors can be mentioned.

The local unit in the present invention may be incorporated in a control device of a core molding machine or a core molding machine with an odor gas treatment device, or may be incorporated in a core molding machine or a core molding machine with an odor gas treatment device. And a function that allows the software of the local unit to be reset by a user command from a remote place via a communication network. That is, at remote locations, local units can be reconfigured to change metrics or to change certain limits or programmed variables. For example, in order to determine whether or not the measurement standard is correct, a determination is made using a comparator connected to a processor or a determination means configured by software, and if it is out of the range, a variable or the like can be changed.

According to the present invention, since a plurality of monitor standards are incorporated, the user can select them with different input / output cards. I / O key
The sensor box is connected to a sensor box, and the sensor box is attached to a specific part of a core molding machine or a core molding machine with an odor gas treatment device. These I / O cards process the signals from the sensors to generate signals that are accepted as inputs to the local unit.

The communication network in the present invention is used between a local unit and a remote unit. Such communication systems may include telephone lines and other protocols for transmitting data to and from remote locations, such as mobile phones and Internet access. More simply, the site and the remote site may be connected by a serial cable. Alternatively, another protocol known in the art, such as a local area network or a wide area network, can be used to transmit data between them. Means for accessing the communication network include:
A modem operatively connected to the local unit can be used.

In the present invention, at least the operation of the core molding machine or the core molding machine with the odor gas treatment device means that not only the operation but also the use according to the user command is possible. I do. For example, monitor logs only when there is a warning for a specific desired period of time,
Alternatively, re-log the data according to the parameters.

The monitoring of a core molding machine or a core molding machine with an odorous gas processing device means, for example, a facsimile, a mobile phone or the like, or a core molding machine or an odorant at a site via other mobile communication means. This also means that the operation monitoring and monitoring system of the core molding machine issues a signal to a maintenance person of the core molding machine with the gas processing device. As a result, the necessity of maintenance can be promptly notified to the person in charge.

The remote unit is connected to the local unit by a communication network, the remote unit being adapted to receive a signal from the local unit and having a core molding machine or an odor gas processing device. The measured attributes of the core molding machine are displayed, so that the core molding machine or the odorous gas can be displayed when the core molding machine or the core molding machine with the odor gas processing device is operated. A core molding machine with a processing device can be monitored at a remote location. Further, similarly to the local unit, it may have a function of analyzing the measurement signal in order to determine whether the measurement reference is correct.

The invention thus provides a means for accessing a communication network connected to a local unit. A sensor for measuring a desired amount of the core molding machine or the core molding machine with an odor gas treatment device is connected to the local unit, and the sensor can send a signal to the local unit. it can. The local unit is adapted to send a signal to the remote unit via the communication network corresponding to the attribute to be measured.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a hardware device according to the present invention. The operation monitoring and monitoring system 1 for a core molding machine according to the present invention shown in FIG. 1 has a local unit 4 and a remote unit 5. And
The local unit 4 is connected to at least one sensor 3 for measuring a desired attribute of the shell machine 2 with a deodorizer as a core molding machine with an odor gas processing device. As the sensor 3, a pressure sensor, a temperature sensor,
Counter, proximity switch, limit switch, timer,
A density detection sensor or the like is used. The shell machine 2 with a deodorizer includes a shell machine 2a and a combustion type deodorizer 2b that burns and treats odorous gas generated when shell sand is fired.

The local unit 4 includes a processor, a display, a printer, an indicator, and the like. In the present invention, the local unit 4 can be a personal computer. The local unit 4 includes a plurality of programmable logic controllers (Ps) configured as hardware or software.
LC) and many other types of electronic computing and processing devices. The printer / indicator is optional and not essential.

The sensor 3 is connected to a local unit 4 via a signal line 6, and the signal line 6 delivers a signal generated by the sensor 3 to an input / output board (not shown). The input / output board comprises a signal processing system for converting a signal into a format convenient for processing by the local unit 4 using a sensor output received on the signal line 6. Can be.

For example, if the sensor 3 is a temperature sensor for measuring a mold temperature, a system for amplifying a weak analog signal and further converting the amplified analog signal into a digital signal is provided. The input / output board can be, for example, a multiplexer, which receives the D
The C-level voltage signal is processed into a numerical signal for use in the local unit 4. The local unit 4 is connected to a storage device (not shown).

The means for accessing the communication network is a modem operatively connected to the local unit 4. The means for accessing the communication network according to the communication network. Various other types of means can be utilized.

In addition, various types of communication networks are available, including dedicated telephone lines, dedicated communication lines, calling telephone lines, mobile telephone systems, wireless networks.
Network systems, Internet access systems, and other types of protocols for transmitting data to and from remote locations. Particularly in the case of an Internet access system, inexpensive and clear monitoring is possible.

Depending on the type of communication network used, the type of means for accessing such a communication network will also differ. Further, the communication network can be a local area network or a simple serial cable. Alternatively, it may be another type of computer-based communication card for communicating with a communication network.

As shown in FIG. 1, the communication network is connected to a remote unit 5. The remote unit 5 receives the signal transmitted from the local unit 4 via the communication network and displays the attribute of the deodorizer-equipped shell machine 2 measured by the sensor 3, whereby the remote unit 5 receives the signal. During operation of the shell machine 2 with a deodorizer, the shell machine 2 with a deodorizer can be monitored.

Also, it can be a siren, a bell or any other type of indicator that indicates that a signal has been received from the local unit 4. In the present invention, the remote unit 5 can be a personal computer. Remote unit 5 can include a printer.

Further, the remote unit 5 can be a mobile phone, in which case the signal generated by the local unit 4 is displayed on the mobile phone, whereby
The generated reading of the specific sensor 3 can be indicated to the service person.

FIG. 2 shows an example of a screen of the core sand blowing data monitor of the shell machine 2 with the deodorizer. In the operation monitoring monitor system of the core molding machine, the core sand blowing data monitor can be selected from many monitor functions.
On the screen of the core sand blowing data monitor, the blow pressure,
Blow time, air pressure in the blow tank, air pressure in the blow head, etc. can be displayed. In this case, the signal transmitted by the specific corresponding sensor 3 is processed and displayed. The core sand blowing data monitor compares the preset target value with the actually measured value at the blow pressure and the blow time, and judges whether or not the difference is within an allowable range by a system capable of calculating. If it is outside the allowable range, the abnormality can be displayed on the monitor screen as a warning and a stop command can be issued to the shell machine 2 with the deodorizer.

Further, the system is capable of comparing the air pressure in the blow tank and the air pressure in the blow head when the core sand is blown and filled in the mold, and calculating from the difference whether the air pressure is within an allowable range. If it is out of the permissible range, the core is clogged in the blow head, the abnormality is displayed on the monitor screen as a warning, and the shell machine 2 with the deodorizer is used.
Can be issued a stop command. Then, by supplying a compressed air having a higher pressure than usual to the blow head by a user's command or automatically, the blow head is blown.
The core sand clogging in the head can be released. The blow pressure, blow time, air pressure in the blow tank,
As a sensor for measuring the air pressure in the blow head,
A pressure sensor, a timer, or the like can be used.

In the shell machine 2 with a deodorizer, a mold data monitor can be selected as another monitor. On the screen of the mold data monitor, the mold type (mold number), mold temperature and the like can be displayed. Further, the mold data monitor compares a preset target value and an actual measurement value at the mold temperature, determines whether or not the difference is within an allowable range by a system capable of calculating, and determines that the difference is outside the allowable range. In this case, the abnormality can be displayed on the monitor screen as a warning and a stop command can be issued to the shell machine 2 with the deodorizer. Then, normal operation can be returned by a user's command or by automatically issuing a correction command. As a sensor for measuring the mold type (mold number) and mold temperature, a proximity switch, a limit switch, a temperature sensor, or the like can be used.

Further, in the shell machine 2 with a deodorizer, an odorous gas processing data monitor can be selected as another monitor. On the screen of the odor gas processing data monitor, the odor gas preheating temperature, the odor gas concentration value, the odor gas combustion temperature, and the like can be displayed. In addition, the odorous gas processing data monitor shows the odorous gas preheating temperature and the odorous gas combustion temperature.
A preset target value is compared with an actually measured value, and from the difference, it is determined by a system capable of calculating whether the value is within an allowable range. If the value is out of the allowable range, it is compared with the case of the mold data monitor. You can do the same. For the odorous gas concentration value, a preset reference value is compared with an actually measured value, and whether or not the difference is within an allowable range is determined by a computable system. An alarm is displayed on the monitor screen for the abnormality, and a stop command can be issued to the shell machine 2 with the deodorizer. Note that a temperature sensor, a concentration detection sensor, or the like can be used as a sensor that measures the odor gas preheating temperature, the odor gas concentration value, and the odor gas combustion temperature.

The selection of the programming language and the operating system can be selected by the user according to the required functions as a whole.

Further, since the operation of the local unit 4 can be configured by software, the setting of the local unit 4 can be updated at present or as required by a command or signal from the remote unit 5.

Furthermore, software developed for use in the remote unit 5 can analyze the measurement signals transmitted via the communication network and make decisions regarding the state of the shell machine 2 with the deodorizer. be able to.

In the embodiment of the present invention, the core molding machine with the odor gas treatment device is monitored. However, the present invention is not limited to this. The core without the odor gas treatment device is monitored. In the case of a molding machine, only the core molding machine may be monitored.

[0037]

As is apparent from the above description, the present invention provides a sensor for measuring a desired attribute relating to a core molding machine or a core molding machine with an odor gas treatment device, and a sensor for measuring desired attributes. A local unit for transmitting a signal corresponding to a desired attribute on a communication network; and a local molding machine or a core unit connected to the communication network for receiving a signal corresponding to the desired attribute from the local unit. A desired attribute relating to the core molding machine with the odor gas processing device is displayed, and at least when the core molding machine or the core molding machine with the odor gas processing device is operated, the core molding machine or the odor gas processing device is displayed. And a remote unit for monitoring the core molding machine with the device, the core molding machine operation monitoring system having a core molding machine or a core molding machine with an odor gas treatment device during operation. Machine monitors, and the like various effects that the data can provide a driving Monitor System core making machine to be transmitted to the remote location.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of a monitor screen according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Operation monitoring monitor system of core molding machine 2 Core molding machine with odorous gas processing device 3 Sensor 4 Local unit 5 Remote unit 6 Signal line

Claims (5)

[Claims] 1. A sensor for measuring a desired attribute of a core molding machine or a core molding machine with an odorous gas processing device, and a signal corresponding to the desired attribute measured by the sensor is transmitted to a communication network. A local unit to be transmitted and a core molding machine or a core molding machine with an odor gas processing device which is connected to the communication network and receives a signal corresponding to a desired attribute from the local unit. A remote unit that displays the attributes of the core molding machine or the core molding machine with an odorous gas processing device, at least during operation of the core molding machine or the core molding machine with an odorous gas processing device. An operation monitoring and monitoring system for a core molding machine, comprising: 2. The local unit includes determination means for determining whether the signal from the sensor is within a predetermined range, and wherein the signal from the sensor is the predetermined signal. The operation monitoring and monitoring system for a core molding machine according to claim 1, wherein the communication unit accesses the communication network and transmits a signal to the remote unit when the communication unit is out of a predetermined range. 3. The apparatus according to claim 2, wherein said remote unit communicates via said communication network and changes said predetermined range associated with said determining means. Operation monitoring and monitoring system for core molding machines. 4. The core molding machine or the core molding machine with an odor gas treatment device has at least one of core sand blowing data and mold data. The operation monitoring monitor system for a core molding machine according to any one of claims 1 to 3. 5. The operation monitoring of a core molding machine according to claim 1, wherein the attribute of the odor gas processing device includes at least odor gas processing data. Monitor system.