JPH0428527B2 - - Google Patents

Description

[Detailed description of the invention] Technical field The present invention relates to an injection molded product (hereinafter referred to as a molded product).
This invention relates to an automatic take-out device.

Conventional technology Conventionally, in the case of an automatic molded product take-out device that automatically takes out injection molded products from an injection molding machine to a predetermined collection location, for example, a detector such as a limit switch, a photo sensor, etc. that detects the position of a chuck part is used. If an abnormal condition occurs during automatic unloading work, such as malfunction, unloading error, falling product during unloading, or defective product ejection abnormality, the operator will be comprehensively notified by appropriate means such as blinking a warning light or warning buzzer. Although this system was configured to notify the user of any abnormality in the automatic molded product removal device, the operator could not immediately identify the abnormality and therefore had the disadvantage that it took a lot of time to repair it.

In particular, when a detector malfunctions, a lot of time is required to confirm the abnormality, which has the disadvantage of hindering the efficiency of injection molding operations.

Purpose The purpose of the present invention is to solve the above-mentioned conventional drawbacks, and to solve the above-mentioned conventional drawbacks. It is related to the device.

Example The present invention will be described below with reference to Examples.

FIG. 1 is a schematic side view showing an outline of an automatic molded product take-out device according to the present invention. 4, a holder 6 that is moved back and forth by a front and rear cylinder 5 fixed to the traveling body 4, and a holder 6 that is moved up and down by a lifting cylinder 7 fixed to the holder 6, and chucks the molded product from the injection molding machine 2. The chuck part 8 to be taken out is attached to the holder 6, the main body frame 3, and the main body frame 3 according to the movement path of the chuck part 8 according to the operation of taking out the molded product, and the chuck part 8 is moved to a predetermined position. A large number of detectors S ₁ ~
Sn and is attached to the right side of the main body frame 3 as shown in the figure.
A conveyor 9 that conveys the automatically taken out molded product to the next process, and detection signals SS ₁ ~ from detectors S ₁ ~ Sn
A control device 10 to which SSn is input and constitutes a discriminating means for determining a failure location, a monitor speaker 11 attached to the main body case of the control device 10 and outputting audio information regarding the failure location, and an automatic molded product removal device 1 The system consists of an expansion speaker 13 attached to a central controller 12 that performs centralized management of the system. Note that a chuck detector (not shown) is attached to each chuck of the chuck section 8 to detect the chuck state of the molded product by the chuck, and a signal from the chuck detector is input to the control circuit 14. Ru.

FIG. 2 is an electrical block diagram showing the audio output member, in which the control circuit 14 moves the chuck part 8 to a predetermined take-out path position as the molded product is taken out, and the detection device provided at that position. After a detection signal SSk is input from a detector Sk (k is an arbitrary integer), for example, after a predetermined period of time has elapsed, a detection signal is output from a detector Sk+1 installed at a position corresponding to the next movement route.
When SSk+ ₁ is input, it is determined that the molded product is being taken out normally by the chuck part, and
A drive signal DS corresponding to the detection signal SSk+1 that instructs the drive unit 15 of the takeout machine to perform the next operation of the chuck unit 8.
is output and a predetermined operation is executed.

On the other hand, if the detection signal SSk+ ₁ from the next operation position is not input after a predetermined time has elapsed after inputting the predetermined detection signal SK, the control circuit 14 determines that the chuck portion 8 has not moved to the position corresponding to the predetermined extraction path. First, it is determined that the extraction is abnormal, and a code signal CS corresponding to the abnormal state is output to the memory control circuit 16 based on the relationship with the detection signal SSk+ ₁ that is to arrive next.

The memory control circuit 16 outputs the start address signal AS corresponding to the code signal CS to the memory 17 in which a large number of audio data notifying that the detector Sk+ ₁ is in an abnormal state is written at each address, A large number of audio data signals consisting of digital signals are generated by sequentially incrementing the address signal AS.
The VDS is sequentially read out and output to the audio output circuit 18.

The audio output circuit 18 D/A converts the input audio data signal VDS into an audio signal VS consisting of an analog signal using an audio conversion circuit 19, and then amplifies it with a predetermined gain using an audio amplifier circuit 20. The information is outputted to the monitor speaker 11 via the monitor speaker 11, and the information regarding the failure of the detector Sk+ ₁ is outputted as a voice.

It is also possible to switch from the monitor speaker 11 to the expansion speaker 13 by switching the changeover switch 21, so that information regarding an abnormality in the automatic molded product removal device 1 can be outputted in audio.

Note that audio data signals consisting of digital signals
Since the configuration for converting VDS into analog audio signal VS is a well-known technique, detailed explanation thereof will be omitted.

In each address, starting data to final data as audio data related to the abnormal state are respectively written.

Further, abnormal states of the molded product automatic take-out device corresponding to the detection states of the detectors S1 to Sn and the chuck detector will be explained below.

First, to explain the ejection abnormality when the chuck part 8 does not move along a predetermined ejection path, as the chuck part 8 holding the molded product moves, a detector installed at a position above the ejection path, for example,
If a detection signal for detecting the movement of the chuck part 8 is not input from the detector Sk+1 installed at the next movement position within a predetermined time period after turning Sk ON, the control circuit will detect an abnormality in the removal of the molded product. At the same time, based on the positional relationship between the detector Sk and the detector Sk+1, for example, it is determined that there is an abnormality in lateral travel, and a code signal CS corresponding to the abnormal state is used to store the memory 1.
The audio data is read from 7 and output as audio.

Moreover, when the chuck part 8 holds the molded product,
The tracking detector outputs a HIGH detection signal to the control circuit 14. As a result, the control circuit 14 determines that the chuck portion 8 is holding the molded product. When the detection signal from the chuck detector changes to LOW without the chuck release signal being input, the control circuit 14 determines that a chuck failure of the molded product has occurred due to the chuck part 8, and for example ” will be output.

Furthermore, the control circuit 14 controls the error output from the injection molding machine when the injection conditions of the injection molding machine, such as the injection pressure, the temperature of the heating cylinder, or the temperature of the mold, change outside the required tolerance range. Return to the signal and output a voice related to the injection failure.

Therefore, in this embodiment, information such as an abnormality in taking out the molded product automatic taking out device 1, a failure in the detectors S ₁ to Sn attached to the taking out device 1, or an abnormality in the injection molding machine is displayed as an abnormal state or a failure location. It is possible to easily confirm abnormal conditions or failure locations by outputting audio depending on the content.

Note that the present invention uses a detection signal SS ₁ as an audio output member.
~ Mark signal and detection signal corresponding to SSn
A magnetic tape or a magnetic disk on which a large number of audio data notifying abnormal conditions corresponding to SS ₁ to SSn are written is used, and when a detection signal SSk is input, for example, the control circuit 14 fast-forwards the magnetic tape. Even if the configuration is such that the audio data written in the block is read out in response to the mark signal located at the K-th position, and the audio information corresponding to the abnormal state of the automatic injection molded product take-out device is output as audio, It is possible.

Effects As explained above, the present invention provides an injection molded product automatic take-out device that automatically takes out an injection molded product injection-molded by an injection molding machine from the injection molding machine using a moving chuck member. Injection based on detection signals from a position detector provided at a position and detecting that the chuck member has moved to each predetermined movement position, and a chuck detector that detects the holding state of the injection molded product by the chuck member. This is an automatic molded product retrieval device that includes a discriminator for determining an abnormality in the retrieval of a molded product, and an audio output device that outputs audio information based on audio data regarding the abnormal retrieval state determined by the discriminator, and is capable of automatic retrieval work. Abnormal conditions such as abnormalities in the detector and malfunctions in the detector can be confirmed by audio corresponding to the contents, thereby facilitating the extraction work.

[Brief explanation of drawings]

FIG. 1 is a schematic side view showing an outline of an automatic molded product retrieval device according to the present invention, and FIG. 2 is an electrical block diagram of the automatic molded product retrieval device.

Claims (1)

[Scope of Claims] 1. In an automatic injection molded product retrieval device for automatically taking out an injection molded product injection molded by an injection molding machine from the injection molding machine by means of a moving chuck member, the device is provided at each moving position of the chuck member. , a position detector that detects that the chuck member has moved to each predetermined movement position, and a chuck detector that detects the holding state of the injection molded product by the chuck member. Taking out the injection molded product based on detection signals from the chuck detector. An automatic extraction device for injection molded products, comprising: a discriminating means for discriminating an abnormality; and an audio output means for outputting audio information based on audio data related to the abnormal state of extraction determined by the discriminating means.