Assistance system for extrusion press apparatus

Abstract

To provide a system that supports traceability in an extrusion press apparatus by enabling effective utilization of image data acquired for a molded product during the extrusion pressing process.SOLUTION: An assistance system for an extrusion press apparatus (100) which captures and stores images of a target associated with the extrusion press apparatus, comprises: one or more cameras configured to image an imaging target; and a processing unit (30) configured to instruct the camera to image the target. The processing unit (30) instructs the camera to start imaging of the imaging target upon a start trigger based on a start command signal of a molding cycle for the extrusion press apparatus (100), instructs the extrusion press apparatus (100) to start molding for a subsequent molding cycle following a preceding molding cycle which is performed first, and instructs the camera to stop imaging of the imaging target for the preceding molding cycle.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a system for assisting traceability in an extrusion press device.

Background Art

[0002] An extrusion press device is a device that presses a metal material that is easy to process, such as aluminum or an alloy thereof, against a die and continuously extrudes an aluminum product having a predetermined cross-sectional shape from the die to produce a molded product. The die has a hole that mimics the cross-sectional shape of the molded product, and the extruded long aluminum product is cut to a predetermined length to become individual molded products.

[0003] In order to reduce the burden on the operator regarding the quality control of the molded product, Patent Document 1 inputs the surface state of the molded product extruded from the extrusion press device by an image input device (camera), recognizes the quality of the surface state of the product from the input image data by an image recognition device, and adjusts the extrusion speed of the extrusion press based on the recognition result.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Patent Document 1 determines whether to adjust the extrusion speed setting value to a value different from the previous one by comparing the image data representing the surface state of the molded product with predetermined reference image data, and determines the extrusion speed. For example, it controls the operation of a hydraulic cylinder. Thus, the image data acquired by the camera in Patent Document 1 is used for adjusting the extrusion speed during the continuous operation of the extrusion press.

[0006] The image data obtained for the molded product by the extrusion press should be utilized not only during the ongoing press molding but also for the traceability of the molded product. As described above, an object of the present invention is to provide a system for supporting traceability in an extrusion press apparatus that can effectively utilize, after the fact, the image data obtained for the molded product during the extrusion press operation.

Means for Solving the Problem

[0007] The present invention relates to a support system for an extrusion press apparatus that photographs and stores a photographing target related to the extrusion press apparatus. This support system includes one or more cameras that photograph the photographing target, and a processing unit that instructs the camera to photograph the target. The processing unit instructs the camera to start photographing the photographing target based on a start trigger based on a start instruction signal for the molding cycle for the extrusion press apparatus, instructs the extrusion press apparatus to start molding for a subsequent molding cycle following a preceding molding cycle that has been performed previously, and instructs the camera to stop photographing the photographing target for the preceding molding cycle.

[0008] In the support system of the present invention, a preferred processing unit instructs the camera to continue photographing the photographing target by a continuous trigger that is issued each time a predetermined time has elapsed from the start trigger during an ongoing molding cycle.

[0009] In the support system of the present invention, a preferred processing unit includes a storage unit that stores, in association with each other, first molding data related to molding conditions and second molding data obtained by photographing the photographing target corresponding to the first molding data, A display unit that displays a trend graph showing the molding conditions included in the first molding data and a video based on the second molding data taken at the time corresponding to the first molding data in the trend graph.

[0010] In the support system of the present invention, preferable second molding data consists of a set of a plurality of first captured data captured in units of molding cycles, and the first captured data consists of a set of a plurality of second captured data captured in units of a predetermined time. Each of the first captured data is assigned a first identification symbol, and each of the second captured data is assigned a second identification symbol.

[0011] In the support system of the present invention, a preferable display unit displays a plurality of second identification symbols in a selectable manner on the screen where the trend graph is displayed.

[0012] In the support system of the present invention, a preferable processing unit when the shooting for the subsequent molding cycle is started, does not issue a continuation trigger for the previous molding cycle.

[0013] In the support system of the present invention, a preferable processing unit when instructing the extrusion press device to start molding for the subsequent molding cycle, does not issue a subsequent continuation trigger for the previous molding cycle.

Effect of the Invention

[0014] According to the present invention, it is possible to provide a system that supports traceability in an extrusion press device, which can effectively utilize the image data acquired for the molded product during the extrusion press operation thereafter.

Brief Description of the Drawings

[0015]

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Mode for Carrying Out the Invention

[0016] Hereinafter, with reference to the accompanying drawings, an embodiment of the present invention will be described by taking, as an example, a traceability support system 1 for a plurality of extrusion press devices 100. In the support system 1, a detection value corresponding to the timing when the extrusion press molding is performed and the molding conditions is stored as molding data in association therewith. This is referred to as the first molding data. In addition, in the support system 1, further, video data photographed for the extrusion press device 100 is stored in association with the first molding data. The video data stored in association with the first molding data is referred to as the second molding data. Therefore, according to the support system 1, after the molding is completed, the video data as the second molding data can be extracted and displayed in association with the first molding data. Note that the first molding data and the second molding data may be collectively referred to as molding data.

[0017] Here, in the extrusion press forming process, it is not easy to detect abnormalities in the molded product during the forming process, and often the abnormalities in the molded product are detected only in later processes. Therefore, if the shooting of video data starts from the detection of abnormalities, even if the captured data is viewed, traceability cannot be ensured. Thus, in the support system 1, video data is acquired and stored in association with the detected values regarding the forming conditions as forming data. Then, for example, an operator related to the support system 1 and the extrusion press device 100 can use the video data more effectively by referring to the displayed detected values regarding the forming conditions and the video data.

[0018] [Overall Configuration] As shown in FIG. 1, the support system 1 is provided corresponding to each of a plurality of extrusion press devices 100, and includes each of a plurality of control units 10 that acquire the forming data and video data of the extrusion press device 100, and a processing unit 30 that processes the forming data and video data acquired by the control unit 10.

[0019] [Extrusion Press Device 100] The extrusion press device 100 mainly includes a container that houses a billet, which is a material to be formed by extrusion, a die that forms the material to be extruded from the container into a predetermined shape, a ram that applies a pressing force toward the die to the material to be formed housed in the container, and a drive source such as a hydraulic pressure that applies the pressing force by the ram. The extrusion press device 100 having this configuration is of a type called direct extrusion or forward extrusion, but the extrusion press device to which the present invention is applied is applicable to various types of extrusion molding press devices such as indirect extrusion (backward extrusion), hydrostatic extrusion, and hollow extrusion. Further, the extrusion press device 100 can be applied to any temperature range of hot, warm, and cold.

[0020] Each extrusion press device 100 is equipped with sensors corresponding to each of a plurality of molding conditions. Examples of the sensors include those that detect, as shown in FIG. 3, for example, the extrusion start position, extrusion start pressure, maximum extrusion pressure, extrusion time, idle time, and the like. The detection values of each sensor are acquired by the control unit 10.

[0021] [Control Unit 10] Each control unit 10 controls the operation of a drive source in the extrusion press device 100, such as a hydraulic cylinder, according to various preset molding conditions. The control unit 10 acquires the detection values obtained by various sensors provided in the extrusion press device 100, and by comparing the acquired detection values with threshold values related to the specified molding conditions, controls the operation of the drive source in the extrusion press device 100 so as to match the molding conditions. In addition, the control unit 10 is equipped with a camera C that photographs the extrusion press device 100, and the photographed image data is sent to the processing unit 30. Note that the control unit 10 is not limited to one camera C and can be equipped with a plurality of cameras C, but at least one camera C is arranged at a position where the extruded molded body can be photographed. When photographing the molded body, a plurality of cameras C can be provided to photograph different parts, such as the plane and both side surfaces. Thus, the photographing target related to the extrusion press device 100 is not limited to the extrusion press device 100 itself, but has a concept that includes the molded body formed by the extrusion press device 100.

[0022] The control unit 10 is composed of a computer device including a CPU (Central Processing Unit), a memory, a display, and the like. This also applies to the processing unit 30.

[0023] The control unit 10 preferably includes a PLC (Programmable Logic Controller), and the operation of the extrusion press device 100 is controlled based on the program provided in the PLC. In this embodiment, the operation of the extrusion press device 100 by the program provided in the PLC, typically a signal instructing the start of extrusion molding, is used as a trigger to acquire video data as the second molding data. Therefore, the second molding data in this embodiment is coordinated with the operation of the extrusion press device 100.

[0024] [Data provision from the control unit 10 to the processing unit 30] In addition, the control unit 10 transmits the detection value acquired along with the extrusion operation in the extrusion press device 100 to the processing unit 30. This detection value constitutes the molding data. The molding data includes a push No. (Push No.), which is an identification symbol assigned for each extrusion push, and the time when the extrusion push corresponding to the push No. is performed, that is, the push time (Push Time). The molding data includes various detection values corresponding to molding conditions such as the extrusion start position, extrusion start pressure, extrusion maximum pressure, extrusion time, and idle time.

[0025] The molding data shown here can be acquired and stored in units of, for example, one day, one week, or one month, but can also be continuously acquired and stored starting from a specific date and time. When in units of one day, the push time (Push Time) does not include information regarding the month and day, but when the molding data is stored in units of one month, the push time (Push Time) includes information regarding the month, and further when the molding data is stored in units of one year, the push time (Push Time) includes information regarding the year and month. Also, the continuously acquired molding data includes information regarding the absolute time in units of, for example, seconds from a specific date and time. Considering the acquisition and storage of molding data for the traceability of molded products, it is preferable to adopt the absolute time starting from a specific date and time.

[0026] In this embodiment, an example will be described in which the shaping data acquired by the control unit 10 is sent to the processing unit 30 and the processing unit 30 accumulates the shaping data. However, in the present invention, it is also possible to create a shaping data file in which the control unit 10 accumulates the first shaping data and transmit this file to the processing unit 30.

[0027] [Processing unit 30] Next, the configuration of the processing unit 30 will be described with reference to FIG. 2. The processing unit 30 includes a receiving unit 31 that receives the shaping data transmitted from the control unit 10, and a storage unit 33 that stores the shaping data received by the receiving unit 31. Further, the processing unit 30 includes an arithmetic unit 35 that processes the shaping data stored in the storage unit 33, and a transmitting unit 37 that transmits the data processed by the arithmetic unit 35 to the display unit 39. The display unit 39 is composed of, for example, a liquid crystal display having a touch panel function. In FIG. 2, the receiving unit 31, the storage unit 33, the arithmetic unit 35, and the transmitting unit 37 are divided for convenience of explanation, and it is not necessary to follow this division as long as the processing unit 30 has the functions of the receiving unit 31, the storage unit 33, the arithmetic unit 35, and the transmitting unit 37.

[0028] [Storage unit 33] The storage unit 33 stores the shaping data acquired from the receiving unit 31 while distinguishing between the first shaping data and the second shaping data. For this purpose, the storage unit 33 includes a first area 331 for storing the first shaping data and a second area 332 for storing the second shaping data. Note that the first area 331 and the second area 332 do not necessarily need to be stored in physically different storage media, and it is sufficient that the respective data can be read separately in a physically same storage media.

[0029] <First shaping data> FIG. 3 shows an example of the first shaping data stored in the first area 331. The first shaping data is classified into trend data and waveform data. [Trend data] As shown in Fig. 3, the trend data is classified into basic items, operation items, and time items, which are exemplified below. Since these items are well-known among those skilled in the art, the description here is omitted. The same applies to the waveform data. A plurality of trend data selected from these data is displayed in a graph format on the display unit 39. The display example will be shown later together with the waveform data.

[0030] As an example of the basic items, Push No. and Push Time are set. As an example of the operation items, the extrusion start position, extrusion start pressure, and extrusion maximum pressure are set. As an example of the time items, the extrusion time and idle time are set. The operation items and time items are associated with the basic items. That is, when the Push No. is specified, the operation items and time items corresponding to the Push No. are specified. This is the same for the waveform data described below, and the waveform data corresponding to the Push No. is specified.

[0031] [Waveform data] As shown in Fig. 3, the waveform data includes at least the following. A plurality of data selected from these waveform data is displayed in a graph format on the display unit 39. Ram stroke, ram speed, main ram pressure Container seal pressure, container stroke, pump output

[0032] <Second forming data: Figs. 4 and 5> Next, the second forming data stored in the second area 332 of the storage unit 33 will be described in the order of the acquisition procedure of the video data (Fig. 4) and the corresponding display with the first forming data (Fig. 5). The second molding data, which is image data, is acquired by a camera C that is a network camera. This camera C acquires image data for a predetermined time using, as a trigger, a signal instructing the start of a molding cycle as an operation of the extrusion press device 100 by the PLC program provided in the control unit 10 described above. The procedure for acquiring this image data will be described with reference to FIG. 4.

[0033] [Procedure for acquiring image data: Refer to FIG. 4] The acquisition procedure shown in FIG. 4 is performed in the process of repeating a plurality of molding cycles, such as the first molding cycle, the second molding cycle, the third molding cycle, … the Nth molding cycle. Extrusion molding constitutes one molding cycle by the operation from when a billet, which is a workpiece, is inserted into the container until the extrusion of the workpiece is completed and the next billet to be processed is inserted into the container. The billets processed in each of the first molding cycle to the Nth molding cycle may have the same or different dimensions in the extrusion direction, and may have the same or different materials. Also, the die constituting the extrusion press device 100 may be continuously used or the die may be replaced.

[0034] Based on a signal instructing the start of the molding cycle transmitted by the control unit 10 to the extrusion press device 100, the camera C starts shooting. That is, this instruction signal serves as a trigger for video data acquisition, and for one molding cycle, the camera C starts shooting. This trigger consisting of this instruction signal is referred to as the start trigger (Ts). When a predetermined time t has elapsed since the control unit 10 transmitted this start trigger, the control unit 10 transmits a trigger for the next video data acquisition to the camera C. This trigger is referred to as the continuous trigger (Tc). When the camera C receives the continuous trigger, the camera C continues shooting for another predetermined time t. Thereafter, the control unit 10 repeats the procedure of transmitting the continuous trigger Tc for the next video data acquisition to the camera C when a predetermined time t has elapsed since transmitting the continuous trigger. When the camera C receives an instruction signal to start a subsequent molding cycle, that is, the start trigger, the shooting in one molding cycle (preceding molding cycle) ends. On the other hand, starting from a new start trigger, shooting for a subsequent molding cycle (subsequent molding cycle) begins. Here, when shooting for a subsequent molding cycle is in progress, even if a predetermined time t has elapsed for the preceding molding cycle, the continuous trigger is not transmitted, and the shooting for the preceding molding cycle ends. Similarly, when the final molding cycle has ended, the shooting for the final molding cycle ends by not transmitting the continuous trigger.

[0035] As described above, the gist of the procedure for acquiring video data in this embodiment is to repeat shooting in units of a predetermined time t based on a control signal instructing the start of the molding cycle in the extrusion press device 100 based on the PLC. Referring specifically to FIG. 4, it is as follows.

[0036] In FIG. 4, extrusion molding is performed in the order of the first molding cycle, the second molding cycle, the third molding cycle... the Nth molding cycle. [Shooting in the First Molding Cycle] When the camera C receives the start trigger Ts1 for the first forming cycle from the control unit 10, the camera C captures the video 1-1 for a predetermined time t. The data for the video 1-1 is transmitted to the control unit 10 and stored in the second area 332. When the shooting of the video 1-1 is completed after the elapse of the predetermined time t, at the same time, the control unit 10 transmits the continuous trigger Tc11 to the camera C. The camera C that has received the continuous trigger Tc11 captures the video 1-2 for a predetermined time t. The data for the video 1-2 is transmitted to the control unit 10 and stored in the second area 332. The video 1-1 and the video 1-2 are captured continuously, and there is no temporal blank period between them.

[0037] In the same manner as above, the videos 1-3, 1-4, and 1-5 for the first forming cycle are captured, but the start trigger Ts2 based on the instruction signal for the start of the second forming cycle is transmitted and received by the camera C. Since the video 2-1 has already been collected, the continuous trigger for the video 1-5 of the first forming cycle is not transmitted, and the shooting of the first forming cycle ends at the video 1-5. Each of the videos 1-1 to 1-5 in the first forming cycle constitutes the second shooting data in the present invention, and the set of the videos 1-1 to 1-5 constitutes the first shooting data in the present invention. The same applies to after the second forming cycle.

[0038] [Shooting after the second forming cycle] When the camera C receives the start trigger Ts2 for the second forming cycle from the control unit 10, the camera C starts shooting the video 2-1 for a predetermined time t. The data for the video 2-1 is transmitted to the control unit 10 and stored in the second area 332. In this example, based on each of the continuous triggers Tc21 and Tc22, the videos 2-2 and 2-3 are captured, but the start trigger Ts3 for the third forming cycle is transmitted. Since the video 3-1 has already been collected, the continuous trigger for the video 2-3 of the second forming cycle is not transmitted, and the shooting of the second forming cycle ends at the video 2-3. Thereafter, in the same manner as the first molding cycle and the second molding cycle, shooting of videos 3-1 to 3-4 in the third molding cycle and shooting of videos N-1 to N-4 in the Nth molding cycle, which is the final cycle, are performed. Since video N-4 does not transmit a continuous trigger because the nth molding cycle has ended when a predetermined time t has elapsed, shooting of all molding cycles is completed. Corresponding video data is stored in the second area 332.

[0039] In the above description, it is assumed that shooting is performed by one camera C. However, as described above, shooting can be performed using a plurality of cameras C1, C2,... CN. In this case, the video data shot by the cameras C1, C2,... CN can include identification symbols corresponding to each of the cameras C1, C2,... CN. In this way, the video data can be easily called based on the identification symbols by each of the cameras C1, C2,... CN.

[0040] [Associated storage with the first molding data: Refer to FIG. 5] The second molding data obtained as described above is stored in the storage unit 33 as shown in FIG. 5, for example. Note that FIG. 5 is a table showing that the first molding data and the second molding data are associated with each other, and does not show the actual storage state in the storage unit 33.

[0041] Trend data and waveform data are stored as the first molding data, and shooting data by two cameras, the first camera and the second camera, is stored as the second molding data. In the first shaping data, for the push No. as a basic item, push data and push time are associated. In this embodiment, it is assumed that the push No. represents the unit of one shaping cycle. Further, for the push No., data corresponding to the operation item and data corresponding to the time item are associated. Note that only the extrusion limit position (ESPO) is exemplified for the operation item, and only the extrusion time (EXTM) and the idle time (IDTM) are exemplified for the time item. Furthermore, waveform data is associated with the push No. In the example of FIG. 5, only the ram stroke (RST) is exemplified.

[0042] Next, in the second shaping data, shooting data by the first camera and shooting data by the second camera are associated with the push No. Identification symbols such as "Video1" for the first camera and "Video2" for the second camera are assigned. This corresponds to the first identification symbol of the present invention. The shooting data by the first camera is divided into, for example, four types: Video1-1, Video1-2, Video1-3, and Video1-4. Each of Video1-1, Video1-2, Video1-3, and Video1-4 corresponds to the second shooting data of the present invention, and the set of Video1-1, Video1-2, Video1-3, and Video1-4 corresponds to the first shooting data. FIG. 5 shows the second shaping data, which is a set of the first shooting data for each of push No. 1 to push No. 5. In push No. 1, the identification symbol "1129_C1" is assigned to the shooting data of Video1-1, and the identification symbol "1131_C1" is assigned to the shooting data of Video1-2. This corresponds to the second identification symbol in the present invention. If Video1-1 of push No. 1 is specified, the video data "1129_C1" can be displayed on the display unit 39.

[0043] [Associated display with the first shaping data: Refer to FIG. 6] Next, with reference to FIG. 6, a procedure for causing the display unit 39 to display the second molding data in association with the first molding data will be described. In the support system 1, as described above, the second molding data is acquired and stored in association with the acquisition of the first molding data. Therefore, according to the support system 1, the second molding data can be displayed in association with the first molding data. For example, an operator of the support system 1 who refers to this display can more effectively use the second molding data as video data by simultaneously displaying the stored first molding data and second molding data.

[0044] After a predetermined number of molding cycle operations in the extrusion press device 100 are completed, as shown in FIG. 6, a graph in which the first molding data is displayed in time series is displayed on the display unit 39. As an example in FIG. 6, a trend graph A regarding the change over time of trend data is shown in the upper part, and a trend graph B regarding waveform data is shown in the lower part. In the two trend graphs A and B in FIG. 6, the horizontal axis indicates time (time) as a timing element in both cases.

[0045] On the display unit 39 on which the trend graph A and the trend graph B are displayed, a display is provided that allows any of the second molding data to be selected. The second molding data that can be selected is associated with the first molding data displayed in the trend graph A and the trend graph B. In the display that allows any of the second molding data to be selected, either the first camera (Video 1) or the second camera (Video 2) can be selected. In FIG. 6, the first camera (Video 1) is selected. And below that, there is a display that allows any of Video1-1 to Video1-7 photographed by the first camera (Video 1) to be selected. In the example of FIG. 6, Video1-1 is selected, and the second molding data (video data) associated with the identification symbol of Video1-1 is displayed on the display unit 39. This video data shows a part of the appearance of the extrusion press device 100.

[0046] [Effects achieved by the support system 1] As described above, the support system 1 controls the acquisition and stop of the second molding data (video data) using an instruction signal from the processing unit 30 that instructs the start of the molding cycle of the extrusion press device 100 as a trigger. Thereby, for example, even if the time required for the preceding molding cycle (cycle time) and the time required for the subsequent molding cycle (cycle time) change, the video data can be automatically photographed starting from the start of the molding cycle without being affected by the change in the cycle time. Therefore, according to the present embodiment, even after the molding cycle is completed, the image data corresponding to the molding cycle can be extracted and thus can be effectively utilized during subsequent traceability execution.

[0047] Also, according to the present embodiment, by shortening the shooting time for one molding cycle in the second shooting data, a decrease in the quality of the video data can be suppressed. Also, according to the present embodiment, the second molding data, which is video data, can be extracted and displayed in association with the first molding data, so that the second molding data can be viewed while referring to the first molding data. Therefore, according to the present embodiment, the video data can be more effectively utilized during subsequent traceability execution. In particular, since the start of the acquisition of the video data is set as the start of the molding cycle, the start times are linked between the waveform data and the shooting data, and it is extremely easy to extract the desired video data with reference to the waveform data.

[0048] In addition to the above, as long as the gist of the present invention is not deviated from, it is possible to select and discard the configurations listed in the above embodiment or to appropriately change them to other configurations.

[0049] As a preferred embodiment, an example was described in which the shooting time is divided into short intervals by a continuous trigger transmitted at intervals of a predetermined time t in a specific molding cycle. However, the present invention is not limited to this. It is also possible to continue shooting without transmitting the continuous trigger and end the shooting of the preceding molding cycle by transmitting the subsequent molding cycle. Further, even if the continuous trigger is transmitted, the continuous trigger can be transmitted when the data amount of the captured image data reaches a predetermined data amount instead of at time intervals.

Explanation of Signs

[0050] 1 Support system 10 Control unit 30 Processing unit 31 Receiver 33 Storage unit 331 First area 332 Second area 35 Arithmetic unit 37 Transmitter 39 Display unit 100 Extrusion press device C Camera

Claims

1. An extrusion press apparatus support system that photographs and stores a photographing target related to an extrusion press apparatus, comprising: one or more cameras that photograph the photographing target; a processing unit that instructs the camera to photograph the photographing target, wherein the processing unit: instructs the camera to start photographing the photographing target based on a start trigger based on a start instruction signal of a molding cycle for the extrusion press apparatus; instructs the extrusion press apparatus to start molding for a subsequent molding cycle following a preceding molding cycle that has been performed previously; and instructs the camera to stop photographing the photographing target for the preceding molding cycle.

2. The processing unit: instructs the camera to continue photographing the photographing target by a continuous trigger that is issued each time a predetermined time has elapsed since the start trigger during the ongoing molding cycle. The support system according to claim 1.

3. The processing unit: includes a storage unit that stores in association first molding data related to molding conditions and second molding data obtained by photographing the photographing target corresponding to the first molding data; and a display unit that displays a trend graph showing the molding conditions included in the first molding data and a video based on the second molding data photographed at a time corresponding to the first molding data in the trend graph. The support system according to claim 1 or claim 2.

4. The second molding data: consists of a set of a plurality of first photographed data photographed in units of the molding cycle, and the first photographed data consists of a set of a plurality of second photographed data photographed in units of a predetermined time, each of the first photographed data is assigned a first identification symbol, and each of the second photographed data is assigned a second identification symbol. The support system according to claim 3.

5. The display unit: displays a plurality of the second identification symbols on a screen on which the trend graph is displayed so that they can be selected. The support system according to claim 4.

6. The processing unit: when photographing for the subsequent molding cycle is started, does not issue the continuous trigger for the preceding molding cycle. The support system according to claim 2.

7. The processing unit: when instructing the extrusion press apparatus to start molding for the subsequent molding cycle, does not issue the continuous trigger for the preceding molding cycle and subsequent cycles. The support system according to claim 2.

Images