JPH06328458A - Mold maintaining apparatus - Google Patents

Abstract

PURPOSE:To avoid the stored data from being lost due to service interruption or the like by simplifying the maintenance of a mold by a method wherein a storage device wherein information is written and read out, and the data can be processed by being connected to an external device, and a secondary power source consisting of a solar cell and a storage battery are attached to the mold. CONSTITUTION:A mold maintaining apparatus A consisting of a secondary power source 2 and an operation part 13 is fixed to a fixed mold C1 or a movable mold C2 via a thermal insulating material. The secondary power source 2 has a solar cell, a storage battery, a CPU, a storage device 1, etc., builtin, and is connected to an operation part 13 equipped with a display part 9, an inputting ten-key, a connection terminal to an external device, etc., with a cable 6. Information peculiar to the mold, molding conditions, maintenance control record, etc., are stored in the storage device, and further successively rewritten. By reading them with a controller for a molding machine, the molding conditions can be automatically set, and further the mold can be maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold maintenance device used in a molding machine such as an injection molding machine or a foam molding machine.

[0002]

2. Description of the Related Art In a mold used in a molding machine such as an injection molding machine, a die casting machine, or a foam molding machine, a mold number is handwritten on the mold in order to distinguish the mold from other molds. Or, a bar code or the like indicating the mold number is attached to the mold and the bar code is read.

As described above, the mold number can be read by a bar code or the like and input to a personal computer or the like. However, the bar code updates the mold information other than the mold number which changes with time each time. It is impossible to go,
Conventionally, the molding condition and maintenance management record when using a mold had to be stored in a document each time.

[0004]

As described above, in the conventional mold, only the mold number is described, and the worker uses this mold number to distinguish the mold. It is only provided in.

On the other hand, in addition to the die number, the die has unique attributes that the die has, for example, the date of die production, the name of the product molded by the die, the structure of the die, the resin used. There are some things that are convenient if stored in correspondence with the mold.
Also, molding conditions and maintenance records when using the mold, such as the number of times used, frequency of use, trouble history information,
Correction records, cost depreciation information, non-use period, etc. are also determined for each mold, so it is necessary to store these data as well, but this information is stored separately from the mold as in the past. However, it is inconvenient to collate each method.

Therefore, it is very convenient in terms of mold maintenance that the above various conditions are sequentially stored and updated in the storage device attached to the mold, but in order to keep the storage device operating, a power supply is required. It is necessary and must continue to power the storage device with a cable. In such a power supply system, when a momentary power failure or the like occurs, the stored data in the storage device disappears in an instant, and a huge amount of labor is required to input again.

It is an object of the present invention to enable a mold to store and update information relating to usage conditions and management of the mold, and to erase the stored data due to a power failure or other accident. There is nothing, and it is to make mold management easy by attaching information itself to the mold.

[0008]

The present invention provides a "molding machine (B1)
In the mold (C) used in, the storage device (1) attached to the mold (C) can write and read at least information, and can be connected to the external device (B) for data processing,
Secondary power source (2) composed of solar cell (3) and storage battery (4)
It is composed of and ”.

Thus, in the storage device (1) attached to the mold (C), the mold number, the mold manufacturing date, the product name molded by the mold (C), and the structure of the mold (C). , Information specific to the mold such as the resin to be used, molding conditions when using the mold (C), maintenance management records, and other useful information if stored in the mold (C) Memorize
By sequentially rewriting the information and reading the stored information with the control device (5) of the molding machine (B1), the molding conditions can be automatically set, and the management of the mold (C) is also performed by this storage. Not only can it be done easily with the information provided, but the data can be backed up semi-permanently by the secondary power source (2) composed of the solar cell (3) and the storage battery (4), so the memory measures (1) due to power failure or other accidents. It is safe because the data in it is not lost. Further, unlike the external power source, since it is a self-power generation type, it does not require a connecting cord with the external power source, and is very convenient to handle.

Further, in claim 2, "the storage device (1) has a mold
The management information of (C) is stored, the management information is updated every time the mold (C) is used, and the unused time is measured when not in use, and maintenance is performed when the set maintenance time is reached. After displaying a warning and performing maintenance, the next maintenance point is input and set as management information in the storage device (1). ” This makes it possible to perform mold management based on the latest data, and also obtain data such as rust prevention work for rusting when the mold has not been used for a long time.

Further, the third aspect of the present invention is characterized in that "a switch for counting the number of times of opening and closing the die is installed in the die". As a result, the mold opening / closing switch (SW) is activated each time the mold (C) is opened and closed, the number of shots used in the RAM provided in the storage device (1) is updated, and when the number of shots used reaches the set number of times. The operator will be notified by an alarm or other means. This allows the number of shots to be constantly monitored.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a mold maintenance device according to the present invention.
FIG. 2 is a perspective view of a mold (C) equipped with (A), FIG. 2 is a perspective view of a storage device (1) in which the difference in mold maintenance constitutes a part of (A),
FIG. 3 is a block diagram of a mold maintenance device (A) used for the mold (C) of one embodiment of the present invention.

(C1) and (C2) are a pair of fixed and movable molds, and one of the molds (C1) and (C2) (fixed mold) has a mold maintenance device (A) provided with a heat insulating material or the like. Fixed through. As shown in FIG. 1, the mold maintenance device (A) is divided into a secondary power source (2) and an operating section (13) in this embodiment, and the secondary power source (2) includes a solar cell (3). ), A storage battery (4), a CPU (10), a storage device (11), a timer (T), a mold opening / closing input section (12), etc. are built in, and the upper surface of a separate operation section (13) is provided. Is LC
A numeric keypad (7) for input is installed at the bottom of the D display section (9). Further, a connection terminal (8) for connecting to the external device (B) is provided, and an opening / closing switch (SW) such as a proximity switch is provided between the molds (C1) and (C2). The storage device (1)
Is composed of, for example, a read only memory (ROM) and a random access memory (RAM), and the connection terminal (8)
Is configured so that it can be connected to an external device (B) such as a control device (5) of a molding machine (B1) or a personal computer (B2) described later.

In this embodiment, the secondary power source (2) is attached to the upper surface of the mold (C1) to facilitate the light collection, and the operation unit (1
3) is attached to the front of the mold (C) for easy operation, and both are connected by a cable (6). Generally, sunlight and fluorescent light in the room often come from above, so we set the secondary power source (2) on the upper surface of the mold (C) as mentioned above, but of course it is not limited to this. Instead, it is possible to select a surface that can collect more light. (In this embodiment, for example, the front surface of the mold (C) is easy to see, but it is insufficient to cover the light amount. On the other hand, it is assumed that the upper surface of the mold (C) is sufficient. , In this case, the solar cell (3) will be installed on the upper surface of the mold (C).)

Storage device (1) in the mold maintenance device (A)
When the die (C) is created, information that is invariable in the die (C) with this storage device (1) is stored in the ROM of the numeric keypad.
(7) Or write using an external device (B) such as a molding machine (B1) or a personal computer (B2). For example, the ROM includes: Mold information Mold number, manufacturing date, mold manufacturer name, molded product name of the mold, type of resin used, mold dimensions (height / width / thickness), mold weight , Locate ring diameter, presence / absence of core
Type, number of plates (2, 3 etc.) B. Molding-related information Allowable mold clamping force, projected area, cavity volume, molded product weight, allowable maximum injection pressure C. Mold plan (a) Cavity information Cavity number, molded product thickness (thin, thick, etc.) (b) Runner information Sprue shape, sprue weight, sprue bush diameter (c) Gate information gate Shape, gate dimensions (height, width, etc.) D. Mold repair procedure, trouble history information, correction record E. Molding conditions for mold making, mold temperature controller conditions (standard molding conditions) F. Cycle time during mold making (standard cycle time) G. Store cost depreciation information.

In the RAM of the storage device (1), information that changes using the mold (C) among the above-mentioned data [for example, notes at the time of molding, maintenance and management (the number of times the mold is used History (the number of shots performed using the mold (counted by the open / close switch (SW) in the number of moldings), the total number of maintenances, the number of shots scheduled for the next maintenance, and when the maintenance is performed. Information, such as the date, the number of shots when maintenance was performed, maintenance content at that time), frequency of use, etc.) Other non-use time count] Information that the user using the mold (C) arbitrarily writes and uses (for example, the date and time when the mold (C) was lent to a subcontractor, and where the eclectapine was damaged, etc. I will write the mold history).

Next, using this mold (C), an injection molding machine (B
The operation when 1) is activated is explained. First, when the mold (C) is created, the contents of the invariant information such as the mold number described above are stored in the ROM of the storage device (1) attached to the mold (C) on the ten key (7) to an external device ( Write in B), operation section
(13) is attached to the front of the mold (C), and at the same time, the secondary power source (2) is attached to the upper surface of the mold (C). Further, the first scheduled maintenance shot number is written in the address of the first scheduled maintenance shot number in the RAM. At the start of use, the number of shots used and the total number of maintenances are set to "0". Then, the mold (C) is attached to the injection molding machine (B1), the control device (5) of the injection molding machine (B1) and the storage device (1) are connected, and a mold information read command is input to input the storage device. The contents stored in the ROM of (1) are read and the contents are displayed on the CRT screen of the control device (5). Based on this display content, the operator can select the mold (C)
It is possible to check whether or not there is an error in the resin used.
In addition, a molding condition setting command from the storage device (1) is sent to the molding machine.
By inputting from (B1), the setting process of molding conditions is started. Normally, molding is performed when creating the mold (C), and the mold (C) is modified and the molding conditions are modified until a good product can be molded. The molding conditions when they are completed are stored in advance in the ROM of the storage device (1) as standard molding conditions. Furthermore, the correction value for each model can be stored.

In this way, when the molding conditions are set, the heating cylinder and the mold (C) reach the set temperature, and molding becomes possible,
If a good molded product is not obtained after trial firing, correct the molding conditions. At this time, the corrected molding condition items are displayed on the molding machine (B1).
It is temporarily stored in the control device (5). Then, when a good molded product is obtained, the continuous molding operation is started, but if the molding condition is changed before the continuous operation is started, the control device (5) should be registered to register this molding condition. When a registration command is input from, the store process for the storage device (1) of the mold maintenance device (A) is started.

At the start of the molding operation, the date (or date) is set by the timer (T) provided in the CPU (10) of the mold maintenance device (A), and injection is performed as necessary. The temperature, outside air, humidity, etc. are read through various measuring instruments attached to the molding machine (B1) and the work date, work environment, etc. are stored.

When molding conditions are set for the model of the molding machine (B1) for the first time (when the model is used for the first time),
At that time, the molding conditions for obtaining a good molded product are stored in the RAM of the storage device (1) as the molding conditions of the model, and if the molding conditions have already been set for the model, the The correction value of the molding condition due to the machine difference is stored. Also, when displaying other information, if you want to add arbitrary information such as check points of molded products, correction method of molding conditions for defective molding state, etc., keyboard (11) of control device (5) Operate to input, display on CRT screen, and input write command to storage device (1), other information will be stored in storage device (1).
Will be stored in. Of course, the above-mentioned operation can be performed by setting the external device (B) such as a personal computer (B2).

In this way, the molding conditions and other information related to the mold (C) are read out and displayed from the memory device (1) fixed to the mold (C), and the molding conditions are set. , Start the molding work referring to other information.

Injection molding machine (B1) with continuous operation command input
When the continuous operation starts, mold closing, injection, pressure holding, weighing,
Controls the operation of one molding cycle of mold opening, and when one molding cycle is completed, the mold opening / closing switch (SW) is correspondingly operated.
Operates and updates the number of shots used in the RAM provided in the storage device (1). When the number of shots used reaches the set number, the operator is notified by an alarm or other means.

As described above, when a message prompting the maintenance of the mold is displayed on the alarm or CRT screen, the operator stops the operation of the injection molding machine (B1) and performs the maintenance of the mold (C). After the maintenance is completed, the control device (5) and the storage device
When (1) is connected and a maintenance completion command is input, the number of maintenances is counted and stored in the storage device (1). In the maintenance completion processing, for example, the i-th maintenance date, the i-th maintenance shot number, the i-th maintenance content, and the (i + 1) th scheduled maintenance shot number are stored. Each time the maintenance is performed, the above contents are stored, and the maintenance history is stored in the storage device (1). In addition, the storage device (1) is an IC
It may be composed of a card or a magnetic force card.

Next, the function of the secondary power source (2) will be described. The mold (C) is stored in a corner of the factory when not in use.Whenever the product type changes, the optimum mold (C) is taken out and mounted on the molding machine (B1) for use. become. As for the mold (C) used, the number of times of use and others are updated as described above. On the other hand, in the non-use die (C), it is necessary to maintain the final data and, for example, to apply rust preventive oil when the non-use time has passed to some extent, so that the non-use time must be counted. To count the unused time, use the built-in timer (T). The secondary power source (2) is used as the operation source for such an operation, but the amount of power required by the mold maintenance device (A) itself is extremely small. Then, the solar cell (3) receives the light in the factory to generate electric power, and the storage battery (4) stores the electric power, which is used as the driving power for the mold maintenance device (A). The factory is illuminated from morning till evening and is bright, and the solar cell (3) will continue to generate electricity during this period. The factory may go on vacation for a long time, but the amount of electricity stored in the storage battery (4) must be sufficient to cover the vacation. (As described above, since the mold maintenance device (A) consumes a sufficiently small amount of electricity, it is not necessary to store an excessive amount of electricity.)

The external device (B) is mainly a molding machine (B
Although the case of 1) has been described, the present invention is not limited to this, and a personal computer (B2) or the like can also be used. By connecting the mold maintenance device (A) to the personal computer (B2), the personal computer (B2)
Data can be directly input to, data management becomes very convenient, backup can be taken, and it is very safe. In addition, the mold (C) is lent to other molding makers such as subcontractors as needed, but since the mold maintenance device (A) is attached to each mold (C), mold management is extremely difficult. It has the advantage of being simple and free of mistakes.

[0026]

According to the present invention, a storage device attached to the mold, capable of writing and reading at least information, and capable of data processing by connecting to an external device, and a secondary power source including a solar cell and a storage battery, Since it is composed of and, in the storage device attached to the mold, the mold number, mold manufacturing date, other mold specific information and necessary items for that mold are It can be rewritten at any time, and not only the mold management and maintenance becomes very simple, but the data is backed up semi-permanently by the secondary power supply composed of the solar battery and the storage battery. It is safe because the data of will not be lost. Further, unlike the external power source, since it is a self-power generation type, it does not require a connecting cord with the external power source, and is very convenient to handle. Further, since the mold maintenance device is attached to the mold itself, if the mold is moved, the data is also moved at the same time, so that the mold management error can be prevented.

According to a second aspect, the mold management information is stored in the storage device, the management information is updated each time the mold is used, and the non-use time is measured when the mold is not used. In addition, when the set maintenance time is reached, a maintenance warning is displayed, and after the maintenance is performed, the next maintenance time is input and set as management information in the storage device. There is an advantage that the mold can be managed and the data of the rust prevention work can be obtained because the mold is not used.

Further, in claim 3, since the switch for counting the number of times of opening and closing the die is installed in the die, the die opening and closing switch is activated every time the die is opened and closed, and the number of shots is constantly monitored. You can do it.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a mold maintenance device of the present invention is attached to a mold.

FIG. 2 is a perspective view of a secondary power source of the mold maintenance device according to the present invention.

FIG. 3 is a block circuit diagram of a mold maintenance device of the present invention.

[Explanation of symbols]

(A) ... Mold maintenance device (B) ... External device (B1) ... Molding machine (C) ... Mold (1) ... Storage device (2) ... Secondary power supply (3) ... Solar cell (4) ... Storage battery (9) ... LCD display

Claims (3)

[Claims] 1. A mold used in a molding machine,
A secondary power source including a storage device attached to the mold and capable of writing and reading at least information and capable of data processing by connecting to an external device; and a solar battery and a storage battery.
A mold maintenance device characterized by being composed of and. 2. A storage device stores mold management information, updates the management information each time the mold is used, and measures a non-use time when the mold is not in use, so that the set maintenance can be performed. The mold maintenance device according to claim 1, wherein when the maintenance time is reached, a maintenance warning is displayed, and after the maintenance, the next maintenance time is input and set as management information in the storage device. 3. The mold maintenance apparatus according to claim 1, wherein the mold is provided with a switch for counting the number of times the mold is opened and closed.