JPH01182020A - Product control device for injection molding machine - Google Patents

Abstract

PURPOSE:To change molding conditions without stopping the operation of a molding machine by renewing automatically a molding condition memory in an injection molding machine control device every time a product plan is put in by a product control device. CONSTITUTION:A product control device consists of an injection molding machine control device 11 and a product control device 17. A molding condition memory 16 provided in the injection molding machine control device 11 stores various kinds of molding conditions and can be put in from a keyboard 15. A product information data memory 18 of the product control device 17 stores the product information data formed by coding and combining molding parameters such as a plurality of molds and the like. A product plan memory 19 of the product control device 17 stores a product plan including the kind of products, number of products and the like. Said plan is put in from the keyboard 15 into the product plan memory 19. A molding condition making device 20 of the product control device 17 makes molding conditions set for the product plan and puts them out into the molding condition memory 16. Thus, the content of the memory can be removed automatically.

Description

[Detailed description of the invention] Industrial application fields> The present invention relates to a production management control device for an injection molding machine.

<Prior art> To explain the conventional device as shown in Fig. 4, the molding machine 10
When performing a molding operation, multiple sets of production lot data are stored in the data memory section 12 of the injection molding machine control device 11, including various molding conditions, such as molding conditions for machine operation, the type and color of the material, or the type of mold, etc. Coded as 01,02
, 03..., and in the setting unit 13, according to the production plan, settings are made in order for each production lot, such as which type and how many products to mold, and the setting order, for example, 03.
-06-01-02..., the molding operation is performed by acting on the sequencer IOA and actuator IOH of the molding machine. Note that ]4 is a display device,
15 is a keyboard.

<Problem to be solved by the invention> However, with conventional control devices, when the production plan changes and the operator wants to change the contents of code 06 (for example, the number of products, color, etc.), the operator calls code o6 and changes the molding conditions. In order to make the change, the molding machine in operation had to be stopped and production would have to be halted. That is, this is because the code o6 set in the setting section 13 has different contents. Therefore, it was an obstacle to automation.

An object of the present invention is to eliminate the above-mentioned drawbacks and provide a production management control device for an injection molding machine that can change the molding conditions without stopping the operation of the molding machine.

<Means to solve the problem> In order to achieve the above-mentioned purpose, multiple sets of material types, colors, types of molds, etc. are coded as production lot data, and the code numbers are arranged in sequential order according to the production plan. When production of a given lot is completed, the molding conditions are changed each time and production of multiple molding lots is continued in the order of the arranged code numbers. An injection molding machine control device that has a memory and a setting unit that arranges and sets the molding conditions stored in the molding condition memory in the order of production. Forming conditions are created based on the product information data memory that stores all coded and combined product information data, and the production plan memory that inputs and stores production plans such as product type and production quantity. A production management control device for an injection molding machine includes a production management controller having a molding condition creation device that automatically updates a molding condition memory in the injection molding machine control device.

With this configuration, the molding condition creation device in the production management controller creates molding conditions based on the production plan, mold, and color code correspondence table in the production plan memory that is input.
Since the molding condition memory in the injection molding machine control device is automatically updated, the molding conditions set in the setting section and the molding condition memory become the same, and the molding machine can perform molding operations according to the production plan.

<Embodiment> Next, one embodiment of the present invention will be described with reference to FIGS. 1 to 3. In the description, the same members as in the conventional example will be given the same numbers, and the explanation will be omitted, and only the members added to the present example will be explained.

16 is a molding condition memory provided in the injection molding machine control device 11 that stores various molding conditions, such as mechanical conditions of the injection molding machine such as injection speed and injection pressure, and molding conditions related to the product, such as the product. All molding conditions in one production, such as the number of molds, color, material, etc., are coded, and multiple sets of 0 are coded.
1, 02, . . . n can be input using the keyboard 15. 17 is a production control controller, which controls multiple molds, color or purging operations,
A product information data memory 18 stores product information data in which molding parameters such as mold replacement work are coded and combined, and a production plan memory 19 stores production plans such as product types and production quantities. Each time a production plan is input from the keyboard 15 to the production plan memory 19,
A molding condition creation device 20 creates molding conditions specified in the production plan, and applies the created molding conditions to the injection molding machine control device 1.
1, and the memory contents are automatically updated.

Although we have explained an example in which various data inputs for the injection molding machine control device and the production management controller are input using the keyboard, input and output are not limited to this, and can also be input and output from an external storage medium such as an IC card. Of course it is.

With the configuration as described above, its function and operation will be explained next.

Now, if a production plan as shown in the table below is issued, the products will be A-) B→C→D→E in the order of ab, c, d, and e respectively.
It will be individually molded. According to the production plan, the operator uses the production control controller 17 to set the mold code suitable for the predetermined product, such as 012, 137, 035, 035, 00.
3. Input a color code such as 3 (blue), 4 (green), 4 (sharp 1 (white), 2 (yellow), etc., and the molding condition creation device 2°
According to the flowchart shown in the figure, it is determined at 30 whether or not to replace the mold, and then at 31 molding conditions according to the color change par are completed.

The completed molding conditions are output to the molding condition memory 16 in the injection molding machine 11, and the molding machine 10 is operated in the steps shown in the flowchart of FIG.

That is, in step 40, it is determined whether or not the lot has ended; in the case of N, the molding operation is continued; in the case of Y (end of the lot), it is determined in step 41 whether or not to replace the mold; in the case of N, The process then proceeds to step 42 for determining whether or not a purge operation is to be performed. On the other hand, in the case of Y, after passing through the mold replacement work 43, there is a step 42 to determine whether or not there is a purge operation.
I will go to If 42 is yes, 44 starts preparing purge conditions, 45 reads next purge conditions, 46 writes next purge conditions, 47 OK to prepare next purge conditions,
Purge operation work is performed in the order of completion of purge condition preparation at 48 and implementation of purge color change work at 49. If there is no purge operation at 42, a molding operation is performed after steps 50 to 54. That is, start preparing fire forming conditions, reading fire forming conditions, writing fire forming conditions, OK to prepare fire forming conditions.
.

Proceed in the order that the molding conditions are ready.

<Effects of the Invention> As explained above, the molding condition memory in the injection molding machine control device is automatically updated every time a production plan is input by the production management controller, which eliminates the drawbacks of conventional devices. is removed, and even if the production plan is changed during molding operation, the molding conditions can be changed without stopping the continuous rotation of the molding machine.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing one embodiment of the present invention, Fig. 2 is a flow chart showing the molding condition determination work of the production control controller, Fig. 3 is a flow chart showing the molding operation process of the molding machine, and Fig. 4 is a flow chart showing the molding operation process of the molding machine. An explanatory diagram of a conventional molding machine control device. 1st step...Injection molding machine control device, 12.16...Molding condition memory, 13...Setting section, 17...Production management controller, 18...Product information data memory, 19...・
Production planning memory, 20...molding condition creation device.

Claims (1)

[Claims] 1) Code the types of materials, colors, types of molds, etc. as multiple sets of production lot data, arrange the code numbers in lot order according to the production plan, and each time the specified lot production is completed. In the production management control device of an injection molding machine that changes molding conditions and continues production of multiple molding lots in the order of arranged code numbers, various molding conditions are stored in a molding condition memory and a molding condition memory. An injection molding machine control device with a setting section that arranges and sets molding conditions in order of production lot, and product information that codes and combines all molding parameters such as multiple molds, colors, purging work, mold replacement work, etc. The product information data memory that stores data and the production plan such as product type and production quantity are input, and molding conditions are created based on the stored production plan memory.
A production management control device for an injection molding machine, comprising a production management controller having a molding condition creation device that automatically updates a molding condition memory in the injection molding machine control device with created molding conditions. 2) Production management control for an injection molding machine according to claim 1, wherein the production planning memory of the production management controller is capable of inputting and outputting data from an external storage medium such as an IC card. Device. 3) The production management control device for an injection molding machine according to claim 1, wherein the injection molding machine control device can receive input from an external storage medium such as an IC card. 4) When the production plan is input into the production plan memory, the molding condition creation device generates raw materials used in molding of the previous lot;
Claim 1 characterized in that at least one resin change operation condition is determined from the raw materials used in the next molding and is stored in a molding condition memory of the injection molding machine control section.
A production management control device for an injection molding machine according to items 1 to 3. 5) When the production lot is completed, the molding condition creation device compares the mold codes before and after the production lot is completed, and if the codes are different, outputs a command to start a mold exchange operation. A production management control device for an injection molding machine according to items 1 to 3.