JP2016060106A - Centralized control device for injection molding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve efficient application of work in a molding factory by enabling a worker to grasp work information of a work to be executed, in the molding factory in which injection molding machines are arranged.SOLUTION: In a centralized control device for an injection molding machine, a work program date is determined relative to each work item, and work data arranged according to each work program date are displayed as work display information on a display device. Hereby, since an operator can grasp easily a work program date to be executed next time relative to each work item, efficient application of work becomes possible in a molding factory.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a centralized management apparatus for an injection molding machine, and more particularly to a centralized management apparatus for an injection molding machine having means for notifying an operator of information related to the work of an injection molding machine performed in a molding factory.

  In a molding factory equipped with an injection molding machine, various products are manufactured by replacing molds and resins for each operation. An injection molding machine may have a function of performing a continuous operation according to a planned production number and automatically stopping the operation when a predetermined amount of production is completed. In order to improve the production efficiency in the production work by the injection molding machine, it is desirable to reduce the time during which the operation is stopped as much as possible and to start the next production preparation work as soon as the operation is stopped.

  Also, in a state other than when the operation is stopped, that is, during a period when the injection molding machine is continuously operating, the bucket filled with the molded product is replaced, or the molded product is periodically extracted and inspected. Such work occurs. As described above, in an injection molding machine molding factory, it is necessary for an operator to carry out appropriate work at an appropriate timing both during continuous operation of the injection molding machine and between continuous operation and continuous operation. is there.

  Further, in a molding factory that operates a plurality of injection molding machines, the manager of the factory needs to grasp the operating state of each injection molding machine for production management. Therefore, a centralized management apparatus is known in which an injection molding machine in a factory is connected to a personal computer via a network, and the operating state of the injection molding machine is monitored on the personal computer.

In Patent Document 1, for the purpose of improving the productivity in the processing machine, in order to shorten the preparation period in the processing machine, a production completion schedule is generated and the scheduled end time of each operation is displayed. A technique for displaying a scheduled stop time when a machine stops is disclosed.
Patent Document 2 registers work performed by a worker and comments registered by the worker as a work history for each worker in order to prevent duplication of assignment in which one worker performs one work. Thus, there is disclosed a technology related to a work communication support apparatus that can perform a fixed time at the time of handover while leaving an accurate work record without increasing the input man-hours for handover.

JP 2003-191235 A JP 2009-163301 A

The technique disclosed in Patent Document 1 displays the production completion schedule and displays the scheduled stop time, but the item displayed in the schedule is only the completion of production, and in other molding plants The necessary work is not considered. Also, when displaying the production completion schedule, etc., the scheduled stop time is simply displayed for each work item, and the display order is not considered.
Although the technique disclosed in Patent Document 2 supports work communication by recording work progress and the like, it is limited to recording work performed by an operator and taking over. Therefore, the efficiency of work such as considering the order of work is not considered.

  Therefore, the present invention enables efficient operation of work in a molding factory by enabling an operator to grasp work information on work to be performed in a molding factory where an injection molding machine is installed. Objective.

  In the invention according to claim 1 of the present application, it is a centralized management apparatus connected to at least one injection molding machine, and the operation is scheduled to be performed for each of at least one work item related to the injection molding machine. The work data includes work schedule date and time calculating means for obtaining a work schedule date and time, work data creation means for creating work data from at least the work item and the work schedule date and time of the work item, and the work data. Work data order determining means arranged in time series according to the scheduled work date and time, and work information display means for displaying as work display information using the work data arranged in time series by the work data order determining means A centralized control device for an injection molding machine is provided.

  According to the first aspect of the present invention, the operator obtains the scheduled work date and time for each of the at least one work item related to the injection molding machine, and displays the work data side by side according to the obtained scheduled work date and time. Since it becomes possible to easily grasp the scheduled work date and time to be executed next for each work item, it is possible to efficiently carry out the work in the molding factory.

In the invention according to claim 2 of the present application, in addition to the work item and the scheduled work date and time of the work item, the work data includes injection molding machine information related to an injection molding machine that is a work target, and work to be performed. The centralized management apparatus for an injection molding machine according to claim 1, comprising at least one of worker information relating to a worker.
In the invention according to claim 2, when a plurality of injection molding machines are installed by including at least one of information on an injection molding machine that is a target of work and information on a worker who performs the work as work data Therefore, it is easy to understand which injection molding machine is the target of work and which worker is working. Can be done.

In the invention according to claim 3 of the present application, the work items include at least one of a production end work, a production start work, a molded product sampling inspection work, and a maintenance work. A centralized control device for the described injection molding machine is provided.
In the invention according to claim 3, by including at least one of the production end work, the production start work, the molded product sampling inspection work, and the maintenance work as work items, the work efficiency is improved for many work items. Operation can be performed.

In the invention according to claim 4 of the present application, the scheduled work date calculation unit includes a scheduled work date correction unit, and the scheduled work date correction unit corrects the scheduled work date based on a preparation time for each work item. A centralized management device for an injection molding machine according to any one of claims 1 to 3 is provided.
In the invention according to claim 4, the work is waited during the preparation time for the preparation work of the work item by correcting the scheduled work date and time in consideration of the preparation time for the preparation work generated for each work item. Such a wasteful time can be prevented, and the work efficiency can be further improved.

The invention according to claim 5 of the present application further comprises work display information erasure means for erasing work items for which work has been completed from work display information displayed on the work information display means. A central control device for an injection molding machine according to any one of the above is provided.
In the invention according to claim 5, since the work item displayed on the work information display means is only the work item to be worked in the future by deleting the work item for which work has been completed from the display of the work information display means, The work items that the worker will perform in the future can be grasped in an easy-to-understand manner, and the work can be operated more efficiently.

  According to the present invention, in a molding factory where an injection molding machine is installed, it is possible for an operator to grasp work information on work to be performed, thereby enabling efficient operation of the work in the molding factory.

1 is a system configuration diagram including a centralized management apparatus for an injection molding machine according to an embodiment of the present invention. 4 is a list of all work items, work items in all target machines, and the like in the display device according to the embodiment of the present invention. It is a list | wrist of the work item etc. for every object machine in the display apparatus in embodiment of this invention. It is a list | wrist of the work item etc. for every worker in the display apparatus in embodiment of this invention.

(First embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a system configuration diagram including a centralized management apparatus for an injection molding machine according to an embodiment of the present invention. Reference numeral 10 denotes a centralized management device which manages a display device and an injection molding machine which will be described later, and 12 is a display device which displays work display information and the like which will be described later. Reference numerals 20a to 20n denote a plurality of injection molding machines. Reference numeral 14 denotes a wireless router that wirelessly transmits information to the external portable terminal 30. The central management device 10, the display device 12, the wireless router 14, and the injection molding machine 20 are connected to each other via a LAN 16. In FIG. 1, the display device 12 is provided separately from the central management device 10, but may be provided integrally with the central management device 10 or may be provided on the mobile terminal 30. is there.

The central management device 10 collects operation information such as the operation state, the number of cycles, and the cycle time of each injection molding machine 20, creates work data from work information as described later, and further displays work from the work data. It is also possible to create information and display it on the display device 12.
In FIG. 1, the injection molding machine 20 and the centralized management apparatus 10 are directly connected via the LAN 16, but the operation information output by the injection molding machine 20 is temporarily stored in a data server on the cloud, It is also possible for the central management apparatus 10 to read the information and create work data.

Next, working data creation means in the centralized management apparatus 10 configured as described above will be described.
The central management apparatus 10 obtains the scheduled work date and time for all the injection molding machines 20 connected via the LAN 16 or the like based on the work cycle or the scheduled work date and time for each scheduled work item. In the present embodiment, four work items, “production end work”, “production start work”, “mold sampling inspection work”, and “maintenance work”, are described as work items. It is not limited to these four work items. Hereinafter, a method for calculating the scheduled work date and time for each work item will be described.

1. Production end work: Work to discharge the resin in the injection cylinder or remove molds and peripheral devices at the date and time when the production number determined in advance by the production plan is completed. Number of cycles to end x cycle time (Formula 1)
2. Production start work: Work to start production by supplying resin to the injection cylinder at the date and time determined in advance by the production plan, or by attaching a mold or peripheral device. Scheduled work date = predetermined by the production plan Date and time (Formula 2)

3. Extraction inspection work of molded product: Work to extract a molded product from an injection molding machine in production and inspect the quality at a predetermined cycle (cycle number and time) Scheduled work date = current date and time + cycle from current to current sampling inspection Number x cycle time (Formula 3)
4). Maintenance work: Maintenance work to lubricate the injection molding machine mechanism at predetermined intervals (cycle number and time) Scheduled work date and time = current date and time + number of cycles from current to next maintenance x cycle time ( Formula 4)

Here, as the cycle time, an actual cycle time immediately before performing the above calculation, an average cycle time, a set reference cycle time, or the like can be used.
The central management device 10 obtains work schedule dates for all work items performed by the injection molding machines M1 to Mn (20a to 20n), and creates work data from the work items and the work schedule dates. In creating work data, in addition to work items and scheduled work dates and times, information related to the injection molding machine that is the work target, such as identification information of the injection molding machine that is the work target, and detailed contents of the work item can also be included. . In addition, when a worker is determined for each work item or each injection molding machine 20, identification data such as the worker's name and employee number and other information related to the worker may be included in the work data. it can.

  The centralized management apparatus 10 arranges the work data created in this way in the time series of the scheduled work date and time, creates work display information, and outputs the work display information to the display apparatus 12. FIG. 2 shows the work item, the work scheduled date and time, and the worker number of the latest four items from the current time. It is an example of the display mode which showed the list which consists of a target machine and completion | finish confirmation. The end confirmation item is “Unconfirmed” because none of the work items are currently completed, but after each work item is finished, the operator presses the end button or each work item is It is possible to change the display to “end” or the like by detecting the end.

  FIG. 2 shows the work item, the work scheduled date and time, and the worker number of the latest four items from the current time. 3 shows a list of target machines and completion confirmations. However, FIG. 3 shows a list of work items for the four latest items from the current time by changing the display form, Scheduled work date and time, worker no. , Shows a list of completion confirmations. When displayed as shown in FIG. 3, it is possible to easily grasp the work items after the current time for each target machine.

  FIG. 4 shows a list in which the display form is further changed, and the work schedule date and time for each worker includes the work items, the work schedule date and time, the target machine, and the end confirmation for the latest four items from the current time. Is. When displayed as shown in FIG. 4, it is possible to easily grasp the work items after the current time for each worker, so it is easy to grasp what work each worker should perform next. Become. Therefore, it is particularly useful when the worker individually has the mobile terminal 30 and displays a list on the display device 12 on the mobile terminal 30.

  By the way, in the work in the molding factory, in addition to the regular work as described above, it is necessary to cope with a sudden failure of the injection molding machine and other equipment. In such a case, the work information corresponding to the failure may be displayed on the display device 12 in preference to the periodic work information.

(Second Embodiment)
In the first embodiment, each piece of work information is displayed on the display device 12 in order from the work with the scheduled work date and time from the current time. By the way, the time required for work in each work item, that is, the work required time differs for each work item. Therefore, even if the work is performed from the most recent work based on the scheduled work date and time obtained by the method of the first embodiment, it is not always efficient. Work may not be possible. For example, in order to perform the production end work, it is necessary to prepare a work tool or the like for removing the mold. Further, in the production start work, there are preparation of a mold to be produced next, preparation of resin, and the like, and it takes time for the preparation work as compared with the production end work. As described above, the time required for the preparation work differs depending on the work item. If the work is not performed in consideration of the preparation time, the preparation time is wasted and production efficiency may be reduced.

  Therefore, in the present embodiment, the scheduled work date and time obtained by the equations 1 to 4 in the first embodiment are corrected in consideration of the preparation time for each work item, and the work scheduled date and time corrected as the work item. Create work data from As in the first embodiment, when creating work data, in addition to work items and scheduled work dates and times, information on the injection molding machine that is the work target, such as the identification information of the work injection molding machine, and work items It is also possible to include the detailed contents. In addition, when a worker is determined for each work item or each injection molding machine 20, identification data such as the worker's name and employee number and other information related to the worker may be included in the work data. it can.

The work data created in this way is arranged in chronological order of the corrected scheduled work date and time to create work display information and output it to the display device 12.
Considering the preparation time in this way, for example, Expression 1 and Expression 2 in the first embodiment are as shown in Expression 5 and Expression 6 below.
1. Production end work: Work to discharge the resin in the injection cylinder or remove molds and peripheral devices at the date and time when the production number determined in advance by the production plan is completed. Number of cycles to end of production x cycle time-tool preparation time (Formula 5)
2. Production start work: Work to start production by supplying resin to the injection cylinder or attaching molds and peripheral devices at the date and time determined in advance by the production plan. Mold and resin preparation time (Formula 6)

  The actual display form of the display device 12 is the first display as shown in FIGS. 2, 3, and 4 except that the scheduled work date and time is corrected with preparation time taken into account. The display mode can be displayed in the same manner as in the embodiment.

  In the embodiment described so far, in the work display information displayed on the display device 12, the item of completion confirmation is “unconfirmed” because none of the work items are currently finished. . Then, after each work item is finished, the worker presses the end button or detects that each work item is finished, so that the end confirmation item display is changed to “End” or the like. However, when the worker presses the end button or detects that each work item is finished, the work data related to the finished work is deleted from the work display information displayed on the display device 12. May be. At this time, the work data can be kept stored and deleted from the work display information displayed on the display device 12 so that the work data is not displayed, or the work data relating to the finished work can be deleted. .

When the worker inputs that the work item has been completed, it may be input directly on the centralized management apparatus 10 or on a mobile terminal 30 or a personal computer connected to the centralized management apparatus 10 by wireless or wired communication. You may do it.
Furthermore, in the explanation so far, as the display form when displaying the created work data as work display information on the display device 12, when displaying all work information as a list and when displaying for each target machine, Although the example in the case of displaying for each worker has been described, other display modes such as displaying for each work item can also be used.

DESCRIPTION OF SYMBOLS 10 Central management apparatus 12 Display apparatus 14 Wireless router 20 Injection molding machine 30 Portable terminal

Claims (5)

A centralized management device connected to at least one injection molding machine,
For each of at least one work item related to the injection molding machine, a work schedule date and time calculating means for obtaining a work schedule date and time to schedule the work;
Work data creating means for creating work data from at least the work item and the scheduled work date and time of the work item;
Work data order determining means for arranging the work data in time series according to the scheduled work date and time included in the work data;
Work information display means for displaying as work display information using work data arranged in time series by the work data order determining means;
A central control device for an injection molding machine, characterized by comprising:   In the work data, in addition to the work item, the scheduled work date and time of the work item, at least one of the injection molding machine information related to the injection molding machine to be worked and the worker information related to the worker who performs the work. The centralized management apparatus for an injection molding machine according to claim 1, comprising:   The centralized management apparatus for an injection molding machine according to claim 1, wherein the work items include at least one of a production end work, a production start work, a molded product sampling inspection work, and a maintenance work. The scheduled work date calculation means includes scheduled work date correction means,
The centralized management apparatus for an injection molding machine according to any one of claims 1 to 3, wherein the scheduled work date and time correction unit corrects the scheduled work date and time according to a preparation time for each work item.   5. The injection molding machine according to claim 1, further comprising: a work display information erasing unit that erases a work item for which work has been completed from the work display information displayed on the work information display unit. Centralized management device.

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