KR20180102303A - Drawing Robot for injection molding machine - Google Patents

Abstract

The present invention relates to a takeout robot apparatus with a function of preventing injection molded product defects of an injection molding machine, wherein the takeout robot apparatus senses weight and the temperature up to a defect limit of the injection molded product, and enables static electricity to be removed from the injection molded product at the same time by determining measurement results after automatically measuring molding temperatures of a mold and an injection molded product and weight of the injection molded product for each takeout cycle during injection molding in the injection molding machine. To this end, the apparatus of the present invention comprises: a takeout robot (100) which is installed in the injection molding machine (10) to perform an operation of taking out and transporting a molding-completed injection molded product; a temperature sensor (200) which is installed at a taking-out operation side of the takeout robot (100), and measures temperatures of the mold and injection molded product of the injection molding machine (10) to provide the measured temperatures as data signals; a load cell (300) which is installed at the taking-out operation side of the takeout robot (100) and measures weights of the injection molded product taken out by the takeout robot (100) to provide the measured weights as data signals; a light irradiation type ionizer (400) which is installed at the taking-out operation side of the takeout robot (100) and injects ions onto the mold and injection molded product of the injection molding machine (10) to remove static electricity therefrom; and a control unit (500) which transmits in real time measured data respectively provided from the temperature sensor (200) and load cell (300), comparatively processes the measured data that have been transmitted in real time to derive resulting data, and controls operation of the takeout robot (100) based on the derived resulting data.

Description

Technical Field [0001] The present invention relates to a drawing robot for an injection molding machine,

The present invention can automatically detect the mold temperature and the weight of a product during injection molding in an injection molding machine, automatically detect the mold temperature and the weight of the product during the extraction cycle, detect the weight and temperature up to the defective limit of the product, The present invention relates to a take-out robot apparatus having an injection-product failure prevention function of an injection molding machine.

Generally, injection molding (injection molding) is a kind of plastic molding method. Injection molding machine uses a machine called injection molding machine. Injection molding machine melts and dissolves when raw material is melted. The raw material is supplied to the mold in a compressed form, injection molded in a desired form, and the injected molded article is solidified and automatically taken out of the mold.

In such an injection molding machine, an electrostatic voltage of tens of thousands of volts or more is formed on the surface of the article by the contact between the surface of the mold and the surface of the article in the process of opening the mold and taking out the article, so that foreign substances such as dust are strongly attracted It causes defects such as contamination of the product, and a lot of efforts are being made to remove it at the injection site.

For example, in a conventional Korean Registered Utility Model No. 20-0432869, a robot for taking out an injection-molded product manufactured by an injection molding machine comprises: a base fixed to the upper portion of the injection molding machine; A forward / backward guide portion rotatably coupled to the upper portion of the base; A gripper for taking out the molded article while moving on the forward / backward guide part; And a control unit disposed inside the base to control operation of the forward / backward guide unit and the gripper, wherein a space portion communicating with the outside through the side of the base is formed inside the base, A control circuit board mounted on the base, and a case attached to the base side portion so as to cover the space portion, the base and the control circuit board, wherein the case is provided with the forward / backward guide portion And an operation switch for turning on and off the operation of the gripper, and an operating means for allowing the user to control the operation of the forward and backward guide portion and the gripper are separately provided.

However, technological problems to be improved have been exposed in the past.

As a result, it is impossible to measure the temperature of the mold and the injection product and the weight of the injection product in the conventional injection molding process. Therefore, the quality inspection of the injection molded product is further performed to select the defective product, , There is a problem that the productivity is lowered, and since there is a structure in which the static electricity generated by the opening and closing of the mold during injection molding and the friction caused by the extraction of the product can not be removed during injection molding, foreign matter such as dust adheres to the surface of the product by static electricity There is a problem that surface defects are caused.

In addition, since the system for automatically controlling the overall condition in the injection molding process is insufficient in the conventional case, it is impossible to immediately grasp or measure the error of the operator who manages the injection molding machine or the defect occurrence situation of the product, There was another problem that it was not easy.

Korean Registered Utility Model No. 20-0432869 is presented.

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems and it is an object of the present invention to provide an injection molding machine capable of automatically measuring the temperature of a mold and a blanket and the weight of a blanket during the injection molding, And the static electricity generated in the injection molding process is instantaneously taken out when the mold is opened. In the process of taking out the robot, the static electricity is removed instantaneously. And to prevent the surface defects of the articles by static electricity in advance by preventing the surface defects of the articles from being deteriorated by the static electricity.

In addition, the present invention provides a system for controlling overall conditions in an injection molding process, allowing a manager to control all of a plurality of injection molding machines without an operator residing in the injection molding machine, and to utilize data about anomalous indications of the injection molding machine And it is another purpose of the present invention to facilitate the production management by immediately grasping and correcting malfunction of the injection product and malfunction of the injection molding machine.

According to an aspect of the present invention,

A taking-out robot installed in an injection molding machine for carrying out an operation of taking out and carrying out a finished product;

A temperature sensor provided on the take-out operation side of the take-out robot and providing a data signal of the temperature of the mold and the product of the injection molding machine after measurement;

A loading cell which is provided on the take-out operation side of the take-out robot and which provides the measured weight of the article taken out by the take-out robot as a data signal;

A light irradiating ionizer provided on a take-out operation side of the take-out robot and injecting ions to a mold and a product of the injection molding machine to remove static electricity,

And a control unit for controlling the operation of the take-out robot on the basis of the resultant data obtained by comparing the measured data transmitted in real time and the measured data provided from the temperature sensor and the load cell, (EN) A take - out robot apparatus having an injection product defective function of an injection molding machine.

According to the present invention, a temperature sensor and a load cell for measuring the temperature of a mold of an injection molding machine, the temperature of a product to be inspected, and the weight of a specimen are provided at the tip of the taking robot of the injection molding machine, The sensor measures the temperature of the mold and the injection mold of the injection molding machine. At the same time, the load cell measures the weight of the product and compares the measurement data with the normal measurement data stored in advance. There is an effect that productivity can be improved by grasping in advance during injection molding without additional quality inspection.

In addition, since a light irradiator ionizer is provided at the tip of a take-out robot in order to remove static electricity generated during the injection molding process, the ion generating time of the ionizer is shortened so that the static electricity can be removed instantaneously at the opening moment of the mold So that it is possible to prevent the defective surface of the product from being electrostatically charged.

In addition, the overall situation in the injection molding process, that is, the temperature of the mold, the temperature of the article to be inspected, and the weight of the article to be inspected are sensed and processed by the temperature sensor and the load cell according to the movement and the atmospheric direction of the robot, The information is transmitted to the manager's mobile terminal when processing the measurement data exceeding the allowable range while allowing the manager to visually recognize the output, and the operation of the take-out robot and the mold opening / closing operation of the injection molding machine are immediately stopped There is an effect that the manager can preview the action before confirming the state of the injection molding machine, thereby facilitating the production management.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a take-out robot apparatus having a defective product defect in injection molding machine according to an embodiment of the present invention; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an injection molding machine,
Fig. 3 is an operational state view of a take-out robot apparatus having a defective product defect in injection molding machine according to an embodiment of the present invention; Fig.

A take-out robot apparatus having a function of preventing the defective product of injection molding of an injection molding machine according to the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the exemplary embodiments of the present invention, a detailed description of components that are widely known and used in the art to which the present invention belongs is omitted, and unnecessary explanations thereof are omitted. It is to communicate the point more clearly.

1 to 3 are diagrams for explaining a take-out robot apparatus having a defective product rejection function of an injection molding machine according to a preferred embodiment of the present invention.

The take-out robot 1 according to the present invention will now be described with reference to FIGS. 1 and 2. The takeout robot 100 performs an operation of taking out and transporting a sample, A load cell 300 for measuring the weight of a product after measurement and providing a data signal as a data signal; a light irradiating ionizer (not shown) for injecting ions into a mold and a product of the injection molding machine 10 to remove static electricity; And a control unit (500) for controlling the operation of the takeout robot (100) based on the resultant data obtained by comparing the measured data transmitted in real time.

Hereinafter, as a basic constitution of the present invention, a configuration of each part of a take-out robot apparatus having a function of preventing defective delivery of articles of an injection molding machine will be described in detail with reference to FIG. 1 to FIG. Fig. 1 is a perspective view of the take-out robot apparatus, and Fig. 2 is a control block diagram of the take-out robot apparatus.

First, the take-out robot 100 comprises:

To automate the taking-out process of injection molding by performing an operation of taking out and carrying out the finished product which is installed in the injection molding machine 10.

For example, the take-out robot 100 includes: An apparatus for automating the take-out and transfer process for a product to be injection-molded installed at an arbitrary position in the injection molding machine (10), which is capable of reciprocating movement in a straight line by using one or more actuators, It is possible to perform an automatic movement operation to a position corresponding to the X axis, Y axis, and Z axis coordinate values of a mold performing injection molding based on a numerical control, and the structure of the takeout robot 100 is controlled by the injection molding machine 10, The present invention is not limited thereto.

At this time, the actuator may be configured to reciprocate the moving guide by a power transmitting method using a motor and a screw, or to reciprocate the moving guide by a power transmitting method using a motor and a rack and pinion, The moving guide may be reciprocated by a solenoid.

The temperature sensor 200 includes:

Is provided on the take-out operation side of the take-out robot 100 and serves as a data signal after measuring the temperature of the mold and the product of the injection molding machine 10.

For example, the temperature sensor 200 may include: A temperature measurement part is connected to the frame 11 provided at an adjacent position on the side of the take-out robot 100 for attracting the article of the pick-up robot so that the temperature measurement part faces forward and the mold is opened in the injection molding machine 10 Or irradiates the infrared ray to the side of the article to be irradiated, and measures the temperature of the infrared ray irradiated part. The temperature is measured every time the article is taken out, and the measured data is transmitted by an electric signal.

The temperature sensor 200 may be selected from one or more non-contact infrared temperature sensors or contact temperature sensors.

In this instance, the temperature sensor 200 has been described based on a non-contact type temperature sensor using infrared rays, but the present invention is not limited thereto, and another type of temperature sensor including a contact type may also be applied.

The load cell 300 includes:

Is provided on the take-out operation side of the take-out robot 100 and serves as a data signal after measuring the weight of the article to be taken out by the take-out robot 100.

For example, the load cell 300 may include: The robot 100 is installed on a frame 11 provided at a position adjacent to the side where the articles of the take-out robot are sucked, and the take-out robot 100 is installed in the injection molding machine 10 The weight of the article is measured every time the article is taken out, and the measured data is transmitted by an electrical signal.

The load cell 300 includes: Preferably two or more than two locations on the frame 11 of the take-out robot 100. When only one load cell 300 is installed, the center of gravity of the article to be measured is directed to one side Therefore, it is preferable to install at least two locations on both sides of the frame 11 of the takeout robot 100 at least.

At this time, the load cell 300 measures the load applied to the frame 11 of the take-out robot 100, and the load applied to the frame 11 includes the weight of the article that is attracted by the takeout robot 100 Weight. Therefore, if the weight of the article to be measured is deviated from the preset standard weight deviation every time the take-out robot 100 is taken out, it is judged to be defective.

The light irradiating ionizer 400 includes:

Is provided on the take-out operation side of the take-out robot (100) and discharges static electricity by spraying ions to a mold and a product of the injection molding machine (10).

For example, the light irradiating ionizer 400 may comprise: Ions are generated by ionizing molecules in the air using light, thereby removing static electricity by bonding ions to Coulomb's force in proportion to the amount of surface charge of the object to be charged.

The light irradiating ionizer 400 may be manufactured in various forms such as a bar type, a fan type, a nozzle type, etc., at the tip of the takeout robot 100, that is, the frame 11 of the takeout robot 100, The ionizer 400 can be selectively applied to the take-out robot 400, and one light irradiating ionizer 400 is preferably installed on the take-out robot 100.

At this time, the light irradiating ionizer 400 increases the instantaneous ion generation capability by manufacturing a tube material for light irradiation with any one of tungsten, molybdenum, and ceramic, The output is high, so ions can be generated more than 2 times, and the static elimination function is performed for a wider area in a shorter time.

In addition, the residual ion amount detection function after the static elimination using the light irradiation type ionizer 400 is provided, so that it is possible to select whether to perform the additional elimination.

On the other hand, when the light irradiating ionizer 400 generates / ejects ions to the mold and the sample of the injection molding machine 10, foreign substances easily adhere to the surface of the article by neutralizing the static electricity by the ions, If the ion cleaning by the light irradiating ionizer (400) is carried out again on the surface of the article to be cleaned, the surface defects of the article can be remarkably reduced.

Here, the temperature sensor 200 is installed in the take-out robot 100 so that the temperature sensor 200 can be inclined upward, downward, backward, and oblique depending on the position of the mold and the product. A vertical bar 21 vertically coupled to the frame 11 of the take-out robot 100, a horizontal bar 22 horizontally coupled to the vertical bar 21 and adjustable in vertical position, And a rotary shaft 24 rotatably coupled to the side of the cross bar 22 to allow the slide block 23 to be slidably moved upward, downward, leftward and rightward.

The vertical bar 21 is bolted vertically to the frame 11 of the take-out robot 100 with a plate material and is fixed, and the bar 22 is coupled to an arbitrary position inside.

 The cross bar 22 is formed of a plate material and has an elongated hole 22a at the center thereof for fixing the moving block 23 at an arbitrary position in an upward, downward, leftward and rightward direction and fixing it by bolt fastening.

The front side of the moving block 23 is fitted to the vertical base 21 in a concave and convex structure and the rear side of the moving block 23 is fitted in a convex and concave structure to be vertically, So that the position can be adjusted by moving the slide.

The rotation shaft 24 is a round bar and is rotatably coupled to the side of the cross bar 22 to provide a space for coupling the temperature sensor 200 to the front end of the rotation shaft 24.

Therefore, the position of the temperature sensor 200 can be changed at every angle, such as back and forth, right and left, up and down, and twist through the vertical bar 21, the cross bar 22, the moving block 23, It is possible to freely and conveniently measure the temperature of the mold.

And, the control unit 500 includes:

The measurement data provided from the temperature sensor 200 and the load cell 300 are transmitted in real time and are used to control the operation of the takeout robot 100 based on the resultant data obtained by comparing the measured data transmitted in real time will be.

The control unit 500 according to the basic embodiment of the present invention includes: A remote control unit 510, an IoT module 520, and a mobile terminal 530.

For example, the control unit 500 compares measurement data sensed by using the temperature sensor 200 and the load cell 300 with normal data corresponding to a normal range of a preset article stored in advance, Outputting the result to the display 12 of the injection molding machine 10 and detecting the measurement data exceeding the tolerance range of the defective product in the preset normal stored data to the mobile terminal 530 of the manager, And a remote control unit 510 for performing remote control for immediately stopping the operation of the take-out robot 100 and the operation of the injection molding machine 10 in the repeated occurrence.

Here, the remote control unit 510 may include: A wired / wireless router 511 for transmitting / receiving data to / from the IoT module 520,

When the measurement data collected by using the temperature sensor 200 and the load cell 300 are transmitted in real time, they are intensively processed, and at the same time, The temperature of the article and the weight of the article to be measured are preliminarily stored, and the previously stored normal data and the measured data transmitted in real time are compared and processed, and the result of processing the measured data in real time is transmitted to the injection molding machine 10 And a control computer 512 for outputting it to the display 12 and the monitor 513 of the control unit 500. [

The wireless router 511 is connected to the control computer 512. When the measurement data of the overall temperature and weight of the articles collected through the temperature sensor 200 and the load cell 300 are collected, And a modem for transmitting and receiving the collected measurement data to and from the IoT module 520 in a wired or wireless communication environment (Wi-Fi).

The control computer 512 is for integrally managing one or more injection molding machines 10 in a molding plant by a single manager and is connected to the wireless router 511. The control computer 512 is a CCR computer The monitor 513 receives the measurement data on the overall situation collected by the injection molding machine 10 and the takeout robot 100 received from the wired and wireless router 511 by the control base of the control computer The measurement data of the overall situation of the injection molding machine 10 and the take-out robot 100 that are collected in real time through the wireless communication service can be outputted and measurement data processed using the wireless communication service can be transmitted / To do so.

At this time, the control computer 512 sets and stores normal data on the temperature of the mold, the temperature of the article and the weight of the article to be measured corresponding to the normal range of the article, so that the temperature sensor 200, the load cell 300, The display 12 and the remote control unit 510 of the injection molding machine 10 and the remote control unit 510 of the injection molding machine 10 perform the comparison discrimination process based on the normal data stored in advance, And outputs it to the monitor 513 of FIG.

On the other hand, in the case of data processing of measurement data exceeding the allowable range of defective items in the pre-set stored normal data, the alarm can be transmitted to the manager's mobile terminal 530 in the wired and wireless communication service environment, 100 and the operation of the injection molding machine 10 can be immediately stopped so that the injection molding machine 10 and the takeout robot 100 are directly or indirectly controlled.

Further, the control unit 500 includes: And an IoT module 520 for transmitting and receiving measurement data sensed by using the temperature sensor 200 and the load cell 300 in a wireless Internet environment.

The IoT module 520 is installed at any position of the injection molding machine 10 while being connected to the temperature sensor 200 and the load cell 300 through a hub and is connected to the temperature sensor 200 and the load cell 300 And transmits measurement data on the overall state of the collected injection molding machine 10 to the control computer 512 of the remote control unit 510 in a wireless Internet environment.

At this time, the IoT module 520 utilizes wired or wireless communication (Wi-Fi) so that the Internet of Things by the temperature sensor 200, the load cell 300 and the IoT module 520, It is possible to control the injection molding machine 10 and the take-out robot 100 on the basis of the control signal.

Further, the control unit 500 includes: A mobile terminal for receiving measurement data processed by the remote control unit 510 in a wireless communication service environment and receiving it in real time to control the injection molding machine 10 or the takeout robot 100 or both in real time, (530).

The mobile terminal 530 is a kind of smartphone device and transmits the measurement data of the overall situation generated in the injection molding machine 10 and the takeout robot 100 to the remote control unit 510 through the control computer 512, The mobile terminal 530 processes the measurement data of the general conditions of the injection molding machine 10 and the takeout robot 100 and controls the injection molding machine 10 and the takeout robot 100. [ Separate mobile application software for remote control and management of the take-out robot 100 can be installed.

Accordingly, an administrator, who is not at the production site, can use the mobile terminal 530 to check the measurement data processed by the remote control unit 510 in real time using the mobile terminal 530, i.e., a smart phone, The remote control unit 510 immediately processes a considerable amount of work.

FIG. 3 is a view showing an operation state of a take-out robot apparatus having a function of preventing a defective article from being discharged from an injection molding machine according to an embodiment of the present invention.

3 (a), in the take-out robot apparatus 1 having the above-described structure, the mold is opened to discharge the articles from the mold mounted in the first injection molding machine 10, The ejection pins or the mold core of the mold slide and operate to separate the articles from the mold surface. In this state, the take-out robot 100 moves and waits for adsorbing the separated articles, and at the same time, The installed temperature sensor 200 and the load cell 300 sense and measure the temperature of the mold and the product of the injection molding machine 10 and the weight of the product of the injection molding machine 10 and measure the measured information data through the IoT module 520, (510) to be utilized, and at the same time, the information data measured on the display (12) of the injection molding machine (10) is output as a numerical value.

Thereafter, ions are generated and sprayed on the article to be taken out of the light irradiating ionizer 400 installed on the take-out robot 100 to neutralize and remove the static electricity remaining on the surface of the article, Etc., and prevent the adhesion of additional foreign matter.

In addition, the measurement data provided from the temperature sensor 200 and the load cell 300 are transmitted to the control unit 500 in real time, and the real-time transmitted measurement data is compared with the preset normal data, The robot 100 is remotely controlled.

3 (b), after the above-described operation process is performed, the take-out robot 100 descends a little further, and the light irradiating ionizer 400 is moved to the inside of the mold, So that the inside of the mold can be ion-cleaned. Immediately thereafter, the light-irradiating ionizer 400 generates and emits ions to neutralize the static electricity remaining in the mold to thereby remove foreign substances such as fine dust ≪ / RTI >

As described above. While the present invention has been particularly shown and described with reference to certain preferred embodiments thereof, it is to be understood that the terminology used herein is for the purpose of describing the present invention only and is not intended to limit the scope of the claims. But is not intended to,

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be easy for anyone to know.

One; A take-out robot apparatus 10; Injection molding machine
100; A take-out robot 200; temperature Senser
300; Load cell 400; Light-irradiated ionizer
500; Integrated control unit 510; Remote control unit
520; IoT module 530; Mobile terminal

Claims (5)

A taking-out robot 100 installed in the injection molding machine 10 for carrying out an operation of taking out and carrying out a finished product;
A temperature sensor 200 installed on the take-out side of the take-out robot 100 for providing the temperature of the mold and the product of the injection molding machine 10 as a data signal after measurement;
A load cell 300 installed on the take-out operation side of the take-out robot 100 and serving as a data signal after measuring the weight of the article taken out by the take-out robot 100;
A light irradiating ionizer 400 installed on the take-out operation side of the take-out robot 100 for injecting ions into a mold and a product of the injection molding machine 10 to remove static electricity,
The measurement data provided from the temperature sensor 200 and the load cell 300 are transmitted in real time and the real time transmitted measurement data is compared and processed to control the operation of the takeout robot 100 based on the derived data Unit 500. The take-out robot apparatus according to claim 1, The method according to claim 1,
The control unit 500 compares measurement data sensed using the temperature sensor 200 and the load cell 300 with normal data corresponding to a normal range of a preset article stored in advance, To the display 12 of the molding machine 10,
The alarm is transmitted to the mobile terminal 530 of the manager and the operation of the take-out robot 100 and the operation of the injection molding machine 10 are repeatedly performed when the measurement data exceeding the acceptable range of the defective product is sensed Further comprising a remote control unit (510) for performing remote control for immediately stopping the operation of the injection molding machine. The method according to claim 1,
The control unit 500 includes an IoT module 520 including an IoT module 520 for transmitting and receiving measurement data sensed by using the temperature sensor 200 and the load cell 300 in a wireless Internet environment, A take-out robot apparatus having a defect prevention function. The method according to claim 1,
The control unit 500 is a mobile terminal that receives control data of the measurement data processed by the remote control unit 510 in a wired and wireless communication service environment and controls the takeout robot 100 in real time 530) of the injection molding machine. The remote control system according to claim 2,
A wired / wireless router 511 for transmitting / receiving data to / from the IoT module 520,
When the measurement data collected by using the temperature sensor 200 and the load cell 300 are transmitted in real time, they are intensively processed, and at the same time, The temperature of the article and the weight of the article to be measured are preliminarily stored, and the previously stored normal data and the measured data transmitted in real time are compared and used, and the result of processing the measured data in real time is transmitted to the injection molding machine 10 And a control computer (512) for outputting to the monitor (513) of the control unit (500) a display device (12).

Images