JP2014156096A - Communication network system of injection molding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication network system of injection molding machines capable of obtaining molding conditions stored in storage means of arbitrary injection molding machine in all of the injection molding machines.SOLUTION: Injection molding machines of the machine numbers 1 to M are connected to a LAN 90, and each of the injection molding machines stores molding conditions and an identification information list 30. Among the plurality of injection molding machines 1 to M connected to a communication line, the molding conditions can be more easily moved which are stored in storage means of each of the injection molding machines, so that the workability is enhanced. Because the molding conditions are stored in each of the injection molding machines on the communication line, a management computer does not require the storage means for storing molding conditions, or even if it has the storage means, the computer does not require failure countermeasure means for a storage region, so that the operation cost for the management computer can be suppressed. If the management computer is not used, the communication network system is constructed by only laying a LAN cable, so that a system-up can be easily performed.

Description

  The present invention relates to a communication network system for an injection molding machine.

  It is known to use a communication network to connect a plurality of injection molding machines to a management computer for centralized management. The management computer obtains information indicating whether the connected injection molding machine is operating or stopped, operation information based on information such as the position, speed, and pressure of the injection molding machine, or production such as the number of production and defective products Information is acquired and used for management of molding quality and management of factory operating conditions. Further, the management computer sets the set values for operating the injection molding machine, for example, set values related to injection such as injection speed, position and pressure, set values related to mold opening and closing speed and position, cylinder temperature, etc. It is also used as means for storing molding conditions in which the set values are collectively. Molding conditions and molds often correspond one-to-one, and it is necessary to move molding conditions between injection molding machines each time the mold is moved between injection molding machines.

  Conventionally, a portable storage medium such as a memory card has been used to move a set of molding conditions between injection molding machines. The molding conditions are moved by copying a set of molding conditions stored in the injection molding machine to a memory card, inserting the memory card into another injection molding machine, and copying the set of molding conditions. However, there is a problem that the work efficiency is poor because such work involves the movement of workers in the factory. As disclosed in Patent Document 1, there is also a conventional technique for transferring and setting control data of a die casting machine in which a plurality of die casting machines are connected by a communication line to another die casting machine.

  On the other hand, there is a method using a management computer. Regarding the molding conditions of the injection molding machine to which the management computer is connected, the management computer acquires and stores the molding conditions from the injection molding machine, while the injection molding machine connected to the management computer stores it on the management computer. From the formed molding conditions, molding conditions corresponding to the mold to be molded are selected, and further obtained from the management computer for molding. The method using the management computer has the advantage that the work efficiency is improved because the movement of the worker is unnecessary. As an example using a management computer, Patent Document 2 discloses a method of transmitting a suitable molding condition to an injection molding machine using a user support device. Using this technique, specified molding conditions can be automatically set in the injection molding machine.

Japanese Laid-Open Patent Publication No. 3-198967 JP 2004-9305 A

  As described above, the method of storing a plurality of molding conditions on the management computer has been greatly improved in terms of work efficiency. The number of conditions increased, and it was necessary to increase the storage capacity of the storage means of the management computer, resulting in a cost problem. In addition, if the storage means on the management computer fails, all the molding conditions stored in the storage means are lost, causing a serious problem that the operation of all injection molding machines connected to the management computer stops. There was a possibility. Therefore, conventionally, it has been necessary to prepare for the failure of the storage means by duplicating the storage means or periodically backing up the stored contents, and such measures have a large cost burden.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a communication network system in which a plurality of injection molding machines are connected by a communication line, in which molding conditions are stored in each injection molding machine connected to the communication network, and the injection molding machine on the communication network is stored. If so, by providing a communication network system for an injection molding machine that solves the above-mentioned problems by making it possible to acquire molding conditions stored in the storage means of any injection molding machine from any injection molding machine. is there.

The invention according to claim 1 of the present application has a plurality of injection molding machines provided with storage means capable of storing at least one molding condition consisting of a plurality of set values and molding condition specific information for specifying the molding condition. An injection molding machine communication network system in which the plurality of injection molding machines are connected by a communication line, wherein one of the plurality of injection molding machines includes the molding condition unique information and the molding condition. The creation means for creating the identification information list by obtaining the identification information from itself and other injection molding machines by using information consisting of the machine unique information for identifying the injection molding machine having the unique information as identification information, and the created Means for displaying an identification information list, means for selecting identification information from the displayed identification information list, and communication when the other injection molding machine stores molding conditions specified by the selected identification information Line And means for acquiring molding conditions specified by the selected identification information from another injection molding machine on the communication network system, and means for displaying a set value of the acquired molding conditions. Is a communication network system of an injection molding machine.
According to a second aspect of the present invention, the one injection molding machine includes an identification information list storage unit that stores the created identification information list, and reads the identification information list from the identification information list storage unit to identify the identification information. The communication network system for an injection molding machine according to claim 1, wherein a list is created.

  The invention according to claim 3 is a plurality of injections comprising a management computer, and storage means capable of storing at least one molding condition consisting of a plurality of set values and molding condition specific information for specifying the molding condition. An injection molding machine communication network system having a molding machine, wherein the management computer and the plurality of injection molding machines are connected by a communication line, wherein the management computer includes the molding condition unique information and the molding condition unique Information comprising machine-specific information for identifying an injection molding machine having information as identification information, creating means for obtaining the identification information from the plurality of injection molding machines and creating an identification information list, and the created identification information Identification information list storage means for storing a list, and one of the plurality of injection molding machines acquires the identification information list from the identification information list storage means. Identification information list acquisition means, means for displaying the acquired identification information list, means for selecting identification information from the displayed identification information list, and other injection molding conditions specified by the selected identification information Means for acquiring a molding condition specified by the selected identification information from another injection molding machine on the communication network system via the communication line, and when the molding condition is stored, And a communication network system for an injection molding machine.

  According to the present invention, in a communication network system in which a plurality of injection molding machines are connected by a communication line, molding conditions are stored in each injection molding machine connected to the communication network, and any injection molding machine on the communication network can be used. It is possible to provide a communication network system capable of acquiring the molding conditions stored in the storage means of any injection molding machine from any injection molding machine.

It is a figure explaining the structural example 1 of the communication network system of an injection molding machine. It is a figure explaining the structural example 2 of the communication network system of an injection molding machine. It is a figure explaining the structural example 3 of the communication network system of an injection molding machine. It is a figure explaining the example of a preservation | save of an identification information list. It is a figure explaining the example of a screen display of the list of molding conditions. It is a figure explaining the example of a screen display of the setting value of molding conditions. It is a figure explaining the display flow of the list of molding conditions. It is a figure explaining the acquisition flow of molding conditions. It is a figure explaining the transmission flow of molding conditions. It is a figure explaining transmitting an identification information list to each injection molding machine. It is a figure explaining the request | requirement and reply of the identification information of molding conditions. It is a figure explaining transmission of identification information on molding conditions. It is a figure explaining the request | requirement and reply of an identification information list. It is a figure explaining the structural example of the communication network system of the injection molding machine by a some communication network.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, terms used in this specification are defined as follows. "Molding conditions": A set of set values for the injection molding machine. “Machine specific information”: Information for specifying an injection molding machine. “Molding condition specific information”: Information for specifying the molding condition. “Identification information”: Information composed of “machine specific information” and “molding condition specific information”. “Identification information list”: A group of multiple “identification information”. “Identification information record”: One piece of “identification information” in the “identification information list”. The molding conditions are specified from the molding conditions stored in the injection molding machine by the “molding condition specific information” after the injection molding machine is specified by the “machine specific information”.

  FIG. 1 is a diagram for explaining a configuration example 1 of a communication network system of an injection molding machine. FIG. 2 is a diagram for explaining a configuration example 2 of the communication network system of the injection molding machine. FIG. 3 is a diagram for explaining a configuration example 3 of the communication network system of the injection molding machine. FIG. 4 is a diagram for explaining an example of storing the identification information list. 5 and 6 are diagrams for explaining examples of screen display of the injection molding machine. 7, 8, and 9 are diagrams illustrating an example of a procedure related to acquisition and display of molding conditions stored in another injection molding machine. 10, 11, 12, and 13 are diagrams for explaining creation, update, and transmission of an identification information list. FIG. 14 is a diagram illustrating a configuration example of a communication network system of an injection molding machine using a plurality of communication networks.

  Configuration examples 1, 2, and 3 of the network system of the communication injection molding machine shown in FIGS. In the communication network system 101 of the injection molding machine shown in FIG. 1, the injection molding machines No. 1 to No. M are connected to the LAN 90 (where M is an arbitrary integer of 2 or more). In the communication network system 102 of the injection molding machine shown in FIG. 2, the injection molding machines No. 1 to No. M are connected to the LAN 90. The communication network system 103 of the injection molding machine shown in FIG. 3 is connected to the LAN 90 with the No. 1 to No. M injection molding machines and the management computer 20 for managing each injection molding machine.

1-3, the configuration example of the communication network system 101, 102, 103 of any injection molding machine stores the molding conditions in each injection molding machine. The molding conditions stored in the machine No. i of the injection molding machine are Pi1, Pi2,. . . (2 ≦ i ≦ M, any integer). Further, in the communication network system 101 of the injection molding machine shown in FIG. 1, each injection molding machine stores an identification information list 30. In the communication network system 102 of the injection molding machine in FIG. 2, each injection molding machine does not store the identification information list 30. In the communication network system 103 of the injection molding machine in FIG. 3, the management computer 20 stores the identification information list 30, and each injection molding machine does not store the identification information list 30.
The identification information list 30 is updated every time the molding conditions are stored in any of the injection molding machines connected to the communication network. The identification information list 30 includes identification information of a plurality of injection molding machines.

  Next, a storage example of the identification information list 30 shown in FIG. 4 will be described. The injection molding machines 1, 2,..., M in FIG. 1 and the management computer 20 in FIG. 3 also update the identification information list 30 when storing the molding conditions. In the present embodiment, the identification information list 30 stores the following four items per record for each line. The record number of the i-th record is “i”. Among the four items, the machine number and IP address are machine specific information, and the condition name and registration date and time are molding condition specific information. The molding conditions are identified by the condition name or registration date / time. An injection molding machine can be specified by any one of the machine number and the IP address, but in this embodiment, both the machine number and the IP address are included in the identification information list.

The machine number, condition name, registration date and time, and IP address stored in one record of the identification information list 30 will be described.
<Machine number>
The machine number of the injection molding machine which memorize | stored the molding conditions corresponding to an identification information record is shown.
The machine number included in the i-th identification information record is “MCNO (i)”.
Example) MCNO (1) = 12, MCNO (2) = 24, MCNO (3) = 5, MCNO (4) = 12, MCNO (5) = 2 (see FIG. 5)

<Condition name>
A name for identifying the molding condition corresponding to the identification information record is shown.
The condition name may be uniquely determined in the identification information list or may be duplicated.
The condition name included in the i-th identification information record is “NAME (i)”.
Example) NAME (1) = “MOLD-10000”, NAME (2) = “MOLD-12345”, NAME (3) = “MOLD-A120B”, NAME (4) = “TEST-A99B”, NAME (5) = "MOLD-BB850" (see Fig. 5)

<Date and time of registration>
The date and time when the molding condition corresponding to the identification information record is stored is shown.
The registration date and time included in the i-th identification information record is “DATE (i)”.
Example) DATE (1) = "2012/12/11 15:20:25", DATE (2) = "2012/12/12 13:12:21",. . . (See Figure 5)

<IP address>
The IP address of the injection molding machine which memorize | stored the molding conditions corresponding to an identification information record is shown.
In order to obtain molding conditions from other injection molding machines, the molding conditions must be requested from an injection molding machine that stores the target molding conditions. The IP address is used when requested.
The IP address included in the i-th identification information record is “IP (i)”.
Example) IP (1) = “10.20.30.40”, IP (2) = “10.20.30.41”, IP (3) = “10.20.30.44”,. . .
If there are multiple molding conditions with the same condition name in a specification that allows duplicate condition names, the molding operator can distinguish molding conditions with the same condition name by machine number and registration date and time. You can select conditions.

Next, screen display will be described with reference to FIGS. The injection molding machine and management computer according to the present invention include a display device for displaying various data and images. FIG. 5 is a screen display example of a list of machine numbers, condition names, and registration dates / times included in the identification information list. The screen 40 displays a molding condition list 41 based on the identification information list 30. In this example, the record number (No), machine number, condition name, and registration date and time are displayed. When referring to the set value of the selected molding condition, the operator of the injection molding machine selects the “set value display” button after selecting the record. The screen 40 includes a set value display button 42, a previous page display button 43, and a next page display button 44. The operator can select the set value display button 42 to display the molding condition of the selected record after selecting the record for which the setting value of the molding condition is to be referred to with a cursor or the like.
When the operator selects the previous page display button 43 or the next page button 44, the display of the molding condition list 41 changes. When the previous page display button 43 is selected, the display changes to the display of the previous page, but when the record number (No) starts from 1, the display does not change. When the next page display button 44 is selected, the display changes to the next page, but the display does not change when the last record number (No) is displayed.

FIG. 6 is a screen display example of the setting value of the molding condition, which is displayed by selecting the setting value display button 42 after selecting the record in FIG. In this example, the machine number, condition name, registration date / time, and individual set values of the identification information record selected in FIG. 5 are displayed. This screen 50 is an example when the record number (No) 3 in the molding condition list 41 of FIG. 5 is selected. When the molding conditions of other injection molding machines are acquired and displayed, the injection molding machine can also store the acquired molding conditions in itself. When storing the molding conditions acquired from another injection molding machine in its current molding conditions, the operator of the injection molding machine saves the save button 55 in the current molding conditions, and saves it in a file when storing it in a file. Button 56 is selected. Reference numeral 51 denotes a display unit that displays the molding conditions selected in FIG. Reference numeral 52 denotes a display unit that displays a set value of the selected identification information record. Reference numeral 53 represents a previous page display button, and reference numeral 54 represents a next page display button. In both FIG. 5 and FIG. 6, the identification information list is used to display a screen of a list of molding conditions and a screen display of setting values of the molding conditions.
When the operator selects the previous page display button 53 or the next page display button 54, the display on the display unit 52 is changed. When the previous page display button 53 is selected, the display changes to the previous page, but when the record number (No) starts from 1, the display does not change. When the next page display button 54 is selected, the display changes to the display of the next page, but the display does not change when the last record number (No) is displayed.

  Next, screen display procedures, molding condition acquisition procedures, and molding condition transmission procedures will be described with reference to FIGS. 7, 8, and 9. FIG. 7 shows a display procedure of the screen of the injection molding machine of FIG. FIG. 7 is described according to each step. The identification information list is acquired (step SA01), the machine number, the condition name, and the registration date / time in the identification information list are acquired (step SA02), and the machine number, the condition name, and the registration date / time are displayed in a list (step SA03). . In the case of FIG. 1, the identification information list 30 stored in the storage means of the injection molding machine is used. In the case of FIG. 2, an identification information list is created and used according to FIG. In the case of FIG. 3, the identification information list 30 stored in the storage means of the management computer 20 is acquired and used according to FIG.

FIG. 8 shows a molding condition acquisition procedure for displaying the screen of FIG. 6 by pressing the set value display button 42 after selecting a record on the screen of the injection molding machine of FIG. The operation procedure of the injection molding machine will be described in detail.
[Step SB01] The injection molding machine displays a list of molding conditions.
[Step SB02] The operator of the injection molding machine selects molding conditions from the list.
[Step SB03] The injection molding machine identifies the record number of the identification information list from the selected molding condition, reads the machine number from the identification information (machine specific information) of the identified record number, and the selected molding condition is It is determined from the machine number whether it is stored in itself.
[Step SB04] If the selected molding condition is stored in itself, the injection molding machine reads (acquires) it and ends the process.
[Step SB05] The injection molding machine requests the injection molding machine in which the selected molding condition is stored to transmit the molding condition when the selected molding condition is stored elsewhere.
[Step SB06] The injection molding machine acquires molding conditions from another injection molding machine and ends the process.

  Supplementary explanation will be given on the acquisition of molding conditions from other injection molding machines. The requesting injection molding machine connects to the requesting injection molding machine by making a connection request using TCP / IP, UDP / IP or the like based on the IP address. After the connection is completed, the requesting injection molding machine transmits a condition name and registration date and time, which are molding condition specific information, to the requesting injection molding machine. The requested injection molding machine can specify the molding conditions to be returned from the condition name and the registration date and time.

  FIG. 9 shows a procedure in which, when the other injection molding machine is requested to transmit molding conditions in the procedure of FIG. 8, the requested injection molding machine transmits the molding conditions to the requesting injection molding machine. The molding condition to be transmitted can be specified from the condition name and registration date and time transmitted after the connection request from the requesting injection molding machine. FIG. 9 is described according to each step. It is determined whether or not there is a transmission request for molding conditions. If there is a transmission request, the process proceeds to step SC02. In step SC02), the acquired molding conditions are transmitted to the requesting injection molding machine (step SC03), and the process ends.

  Next, creation, update, and transmission of the identification information list will be described with reference to FIGS. The identification information list 30 in FIG. 10 is transmitted to each injection molding machine in the configuration example in FIG. In the configuration example of FIG. 1, each injection molding machine stores an identification information list 30, and the identification information list 30 of each injection molding machine is set to be the same in the latest and all injection molding machines. When the injection molding machine stores the molding conditions in the storage means of the injection molding machine, the identification information list stored in the storage means of the injection molding machine is updated. After the update, the injection molding machine transmits the updated identification information list to the communication network by broadcasting. Other injection molding machines overwrite the existing identification information list stored in the storage means of each injection molding machine with the updated identification information list received by broadcasting. The identification information list may be updated on each injection molding machine. In this case, the injection molding machine storing the molding conditions transmits only the identification information of the stored molding conditions to the communication network by broadcasting, and the other injection molding machines receive the identification information by broadcasting, and the other injection molding machines Updates the identification information list stored in each injection molding machine with the received identification information.

  The injection molding machine updates the identification information list stored in itself as follows. Since the condition name is information for specifying the molding conditions, it is possible to not allow duplicate condition names in the identification information list for the same injection molding machine, and after allowing duplicate condition names, the condition name The molding conditions can be specified by a combination of the registration date and time. In the specification that does not allow duplicate condition names, if there is already an identification information record with the same condition name in the identification information list, the record is overwritten and updated. If there is no identification information record with the same condition name, it is added to the identification information list as a new identification information record. In the case of a specification that allows duplicate condition names, it is added to the identification information list as a new identification information record having the same condition name.

  The request for the identification information of the molding condition in FIG. 11 and the reply are performed in the configuration example in FIG. The configuration example of FIG. 2 does not store the identification information list. Instead, an injection molding machine that requires molding conditions collects identification information of other injection molding machines and creates an identification information list when acquiring molding conditions or displaying a list of molding conditions. The requesting injection molding machine requests identification information from other injection molding machines by broadcasting. The other injection molding machine that has received the request collects the identification information of the injection molding machine and returns it to the requesting injection molding machine. The requesting injection molding machine creates an identification information list from the returned identification information of the other injection molding machines and the identification information stored in the storage means of the requesting injection molding machine.

  The identification information list is created as follows. The identification information list is created by arranging the returned identification information of the molding conditions of the other injection molding machines and the identification information of the molding conditions of the requesting injection molding machine. Here, in the case of a specification that does not allow duplication of condition names, if there are a plurality of identification information records with the same condition name, only the identification information record with the latest registration date is left.

  Transmission of the molding condition identification information of FIG. 12 from the injection molding machine to the management computer is performed in the configuration example of FIG. In the configuration example of FIG. 3, the management computer stores the identification information list. When the injection molding machine stores the molding conditions in the storage means of the injection molding machine, the identification information of the stored molding conditions is transmitted to the management computer, and the identification information list stored in the management computer is updated. In order to specify the management computer, the IP address of the management computer is set in advance for each injection molding machine. The injection molding machine makes a connection request using TCP / IP, UDP / IP or the like to the management computer based on the IP address and connects. The injection molding machine transmits the identification information to the management computer. When the management computer receives the molding condition identification information, the management computer updates the identification information list. Note that the management computer updates the identification information list in the same manner as described in FIG.

  A request from the injection molding machine to the management computer and a reply from the management computer to the injection molding machine in the identification information list of FIG. 13 are performed in the configuration example of FIG. In the configuration example of FIG. 3, the management computer stores the identification information list. Each injection molding machine requests the identification information list from the management computer when acquiring the identification information list. The management computer that has received the request returns an identification information list to the requesting injection molding machine. As in the case of FIG. 12, the injection molding machine makes a connection request to the management computer using TCP / IP, UDP / IP or the like based on the IP address.

Let me add to the end. Set the directory that contains the file that stores the molding conditions on the injection molding machine to a shared directory that can be referenced by other injection molding machines on the network, and the other that stores the molding conditions on the requesting injection molding machine. There is also a method in which a requesting injection molding machine acquires molding conditions by referring to a shared directory of the injection molding machine. Even in this method, it is necessary to create an identification information list by the method described in the explanation of FIG. 11 in order to specify the molding conditions. If the requesting injection molding machine acquires molding conditions, the requesting injection molding machine must send a molding condition acquisition request, and the requested injection molding machine must return the molding conditions. The acquisition procedure is the same as in FIG. Therefore, even if a shared directory is set, it is necessary to create an identification information list and obtain molding conditions disclosed in the present invention.
When targeting some injection molding machines on the communication network, the machine specific number of the requested injection molding machine is stored in the requesting injection molding machine, and the requesting injection molding machine is unique to the machine. A method of acquiring identification information only from a specific injection molding machine based on the information may be used.
When the machine number or IP address of the molding machine is changed, the identification information list 30 needs to be updated. In this case, in the injection molding, after changing the machine number or IP address, an identification information list is created by the method described in the explanation of FIG. 11, and the identification information list stored by itself is overwritten and another injection molding machine or management is performed. To the computer. The other injection molding machine or management computer may overwrite the acquired identification information list on the identification information list stored in itself.

  A network system can be configured by a plurality of networks, and molding conditions can be acquired from injection molding machines on other networks. As shown in FIG. 14, it is also possible to acquire molding conditions from an injection molding machine on another network. The injection molding machines 1, 2,... Are connected to the factory A (network A) connected by the LAN 91. The LAN 91 is connected to the LAN N 92 via the LAN 90 and connected to the factory B (network B) connected by the LAN 92. Are connected to injection molding machines 201, 202,. The connection between the LAN network networks may be a network constituted by a dedicated line such as an in-house LAN or a public network such as the Internet.

  According to the present invention, the molding conditions stored in the storage means of each injection molding machine can be easily moved between the plurality of injection molding machines connected to the communication line, and the working efficiency can be improved. In addition, since the molding conditions are stored in each injection molding machine on the communication line, the management computer does not require storage means for storing the molding conditions, or even if there is a storage means, no storage area failure countermeasure means is required. Thus, there is an effect that the operation cost of the management computer can be suppressed. When the management computer is not used, the communication network system can be constructed only by laying the LAN cable, and the system can be easily upgraded. On the other hand, when the management computer is used, the management computer only needs to operate the identification information list.

1, 2,... M Injection molding machine 201, 202 Injection molding machine 20 Management computer 30 Identification information list

40 screen 41 molding condition list 42 set value display button 43 previous page display button 44 next page display button

50 screen 51 identification information record 52 set value list 53 previous page display button 54 next page display button 55 current molding condition save button 56 file save button

90 LAN

101, 102, 103 Communication network system of injection molding machine

Claims (3)

A plurality of injection molding machines having storage means capable of storing one or more molding conditions consisting of a plurality of set values and molding condition specific information for specifying the molding conditions, and communicating the plurality of injection molding machines A communication network system for injection molding machines connected by a line,
One injection molding machine of the plurality of injection molding machines uses information including the molding condition specific information and machine specific information for specifying the injection molding machine having the molding condition specific information as identification information, Creating means for obtaining the identification information from the injection molding machine and creating an identification information list;
Means for displaying the created identification information list;
Means for selecting identification information from the displayed identification information list;
When the other injection molding machine stores the molding conditions specified by the selected identification information, it is specified by the selected identification information from another injection molding machine on the communication network system via the communication line. Means for obtaining molding conditions,
Means for displaying a set value of the acquired molding condition;
A communication network system for an injection molding machine.   The one injection molding machine has identification information list storage means for storing the created identification information list, and reads the identification information list from the identification information list storage means to create an identification information list. The communication network system for an injection molding machine according to claim 1. A plurality of injection molding machines having a management computer and storage means capable of storing one or more molding condition specific information for specifying the molding conditions and molding conditions consisting of a plurality of set values; An injection molding machine communication network system in which a computer for use and the plurality of injection molding machines are connected by a communication line,
The management computer uses the information consisting of the molding condition specific information and machine specific information specifying the injection molding machine having the molding condition specific information as identification information, and acquires the identification information from the plurality of injection molding machines. Creating means for creating an identification information list,
Identification information list storage means for storing the created identification information list,
One injection molding machine among the plurality of injection molding machines includes identification information list acquisition means for acquiring the identification information list from the identification information list storage means,
Means for displaying the acquired identification information list;
Means for selecting identification information from the displayed identification information list;
When the other injection molding machine stores the molding conditions specified by the selected identification information, it is specified by the selected identification information from another injection molding machine on the communication network system via the communication line. Means for obtaining molding conditions to be performed;
Means for displaying a set value of the acquired molding condition;
A communication network system for an injection molding machine.

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