KR101711560B1

KR101711560B1 - Automatic supply device for molding material having dispersal network system

Info

Publication number: KR101711560B1
Application number: KR1020150185219A
Authority: KR
Inventors: 윤희성; 손정표
Original assignee: 유도썬스(주)
Priority date: 2015-12-23
Filing date: 2015-12-23
Publication date: 2017-03-02

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an automatic forming material supply apparatus having a distributed network system. This device comprises: a hopper device supplied with a raw material; A receiver for passing the raw material from the hopper device; A receiver drive unit installed in the receiver; A PLC connected to the power source through a power cable; A main cable connected to the PLC; A plurality of connecting modules connected to the main cable; And a plurality of dispersion cables connected to the connection driving modules and connected to the receiver driving units, for transmitting the control signals and the electric power received through the connecting modules to the receiver driving unit.
The automatic forming material supply apparatus having the distributed network system according to the present invention as described above is a means for integrally controlling a plurality of receivers for supplying raw materials to a raw material use unit, and includes a single delivery cable, By applying the dispersion cable connecting the delivery cable to the receiver drive unit, the structure is simple, the amount of the wiring used can be remarkably reduced, there is no worry of miswiring during the installation work, Further, it is not necessary to separately include the power line and operate the separate power line separately.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automatic supplying device for a forming material,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an automatic forming material supply apparatus having a distributed network system.

Industrial automation is a batch production system that is implemented by controlling a robot, a machine tool, or a transfer device through the design of a process applied to mass production of a certain product and a batch control system based on the design. This includes all control systems in which parts of the process are configured for production automation purposes, such as conveyor devices, industrial robots, inspection devices, automated warehouses, unmanned transporters, numerical measurement and machine tools.

There are various kinds of networking systems applied to the industrial automation field, for example, a method using a communication between a computer and a PLC (Programmable Logic Controller) is also applied. This communication method is also called Fieldbus as a method used to share a large amount of data. Fieldbus is an industrial network that controls field level devices such as sensors, single loop controllers, PLCs, motors, valves, and robots located at lower levels of the automation system.

On the other hand, as an example of industrial automation, the industrial automation concept as described above is applied to a molded product production line in which a raw material of a synthetic resin is transferred to a molding machine to perform injection molding or heat molding pressing.

For example, in Korean Patent No. 10-1503414 (plant for pneumatic conveyance with controlled speed of granular material and method for controlling the speed of conveyance), a plurality of receiver-meter group, cyclone filter group and vibration pump are controlled Thereby automatically feeding the granular raw material to the deforming device. The deforming device is a molding device such as an injection molding machine. In addition, the receptor-meter group operates in parallel with several dozen or more in order to meet the requirements of mass production.

However, the conventional control method described above has a disadvantage in that the structure is very complicated because a plurality of receptor-meters are arranged in parallel and the ECU is individually connected to each receiver-meter through a cable.

Further, a power line for supplying power to the receiver-meter is separately extended from the cable and connected to an external power source. In addition to operating the power line for supplying power to each receiver-meter separately from the cable, it is necessary to additionally provide power supply means corresponding to one-to-one correspondence to the receiver-meter in the factory.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a method and apparatus for integrally controlling a plurality of receivers for supplying a raw material to a raw material- By applying the distributed cable connecting to the unit, the structure is simple and the amount of wiring used can be remarkably reduced. In addition, there is no worry of miswiring during the installation work and maintenance is easy, and further, The present invention has been made in view of the above problems, and it is an object of the present invention to provide an automatic molding material supply apparatus having a distributed network system that does not need to separately operate a separate power line.

In order to accomplish the above object, the present invention provides an automatic forming material supply device having a distributed network system, comprising: a raw material storage part in which granular synthetic resin materials are stored and a raw material supply pipe is connected; A crushing material storage unit to which a crushing material supply pipe is connected as a container for receiving the reusable crushing material obtained by collecting and crushing the synthetic resin left after the molding operation; A plurality of hopper devices arranged in parallel and supplied with the granular material through the material feed pipe from the raw material storage or the crushing material storage section or through the crushing material feed pipe; A plurality of receivers corresponding one-to-one to the hopper device, connected to respective hopper devices through a feed pipe, passed through the hopper device to deliver the granular feedstock or the pulverizing material, and then delivered to an external forming device; A vacuum pressure output unit that is operated by power supplied from the outside to output a vacuum pressure; A main tube connected to the vacuum output unit and the receiver to form a negative pressure in the receiver, the main tube extending along an arrangement line of the receiver with one end connected to the vacuum output unit; A decompression line including a branch tube to be connected; A switching valve installed in each of the branch tubes and opened and closed by a signal transmitted from the outside; An operation informing means attached to the receiver for informing the operator that the granular material or the pulverizing material enters the receiver or is supplied from the receiver to the molding apparatus; A receiver driving unit for detecting information including the presence or absence of the granular material or the pulverizing material in the receiver and the internal pressure of the receiver, and operating the switching valve; A PLC (23) connected to the power source via a power cable for leading the power from the power source to the vacuum pneumatic output section, the operation notifying means, and the receiver drive unit and being operated by an operator; A main cable extending in a longitudinal direction with one end thereof connected to the PLC and transmitting a control signal and power; A plurality of connecting modules connected to the main cable and spaced apart from each other along a longitudinal direction of the main cable and outputting signals and power passing through the main cable to the outside of the main cable; And a plurality of dispersion cables connected to the connection driving modules and connected to the receiver driving units and transmitting the control signals and electric power received through the connecting modules to the receiver driving unit and operation notification means.

Further, the main cable may include: Two lines of communication lines, two lines of power lines, and one line of grounding lines are formed as one bundle.

The automatic forming material supply apparatus having the distributed network system according to the present invention as described above is a means for integrally controlling a plurality of receivers for supplying raw materials to a raw material use unit, and includes a single delivery cable, By applying the dispersion cable connecting the delivery cable to the receiver drive unit, the structure is simple, the amount of the wiring used can be remarkably reduced, there is no worry of miswiring during the installation work, Further, it is not necessary to separately include the power line and operate the separate power line separately.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing the overall structure of an automatic molding material supply apparatus having a distributed network system according to an embodiment of the present invention; FIG.

Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Basically, the automatic molding material supply apparatus according to the present embodiment applies a distributed network system to integrate a large number of signal cables connected to each of the receiver drive units 29 into one bundled cable and a connecting module Thereby providing wiring savings as well as convenient maintenance and further providing a compact wiring environment.

As shown in the figure, an automatic molding material supply apparatus having a distributed network system according to the present embodiment includes a raw material storage unit 11 in which granular synthetic resin materials are stored, And a plurality of hopper devices (not shown) for receiving and passing the granular material or the pulverizing material from the raw material storing portion 11 or the pulverizing material storing portion 43. The pulverizing material storing portion 43 stores the reusable pulverizing material, A plurality of receivers 27 connected to the hopper device 13 through a raw material feed pipe 17 for receiving and storing the granular raw material or the pulverized material and sending the granular raw material or the pulverized material to the molding device 31, A receiver driving unit 29 for sensing the internal state of the receiver 27 and implementing a control operation when necessary, a PLC (Programmable Logic Controller) 23 connected to the receiver driving unit 29, (23) to the respective receiver drive units (29) And a main cable connection (35) and connecting modules 39 and cable distribution 37 and the pneumatic output unit 33 binary to provide a vacuum pressure to the receiver 27 for.

The main cable 35 connecting the PLC 23 and the PLC 23 and the connecting module 39 and the dispersion cable 37 form a distributed network for driving the receiver drive unit 29 in a mutually connected state .

In the present embodiment, the term "raw material" means a synthetic resin material used for producing a desired synthetic resin product by applying heat and pressure. Such a raw material may be, for example, processed into a fillet or granular form, or may be pulverized after collecting synthetic resin fragments or the like remaining after completion of a separate molding process.

In the following description, the raw material in a pulverized state is referred to as a pulverized material, and the raw material supplied from the raw material storage section 11 is referred to as a granular raw material. The same is true that the raw material is transferred to a molding apparatus 31, which is a pulverizing material, and is made into a new synthetic resin product.

First, the raw material storage part 11 is connected to a plurality of hopper devices 13 through a raw material supply pipe 15 as a container for receiving granular raw materials supplied from the outside. Various kinds of granular raw materials can be received in the raw material storage part 11 in a separated state. For this purpose, it is a matter of course that the raw material storage unit 11 is provided with a plurality of independent receiving spaces. Various kinds of materials are used to describe the material and color of the granular raw material.

The hopper device 13 has a parallel arrangement structure with respect to the raw material storage part 11 and supplies the granular raw material through the respective raw material supply pipes 15 and temporarily stores the raw materials. The granular raw material collected in the hopper device 13 is passed to the receiver 27 through the raw material feed pipe 17 when the valve 19 is opened and negative pressure is applied to the receiver 27.

A crushing material storage unit 43 is disposed on the side of each of the hopper units 13. The pulverizing material storage unit 43 is a container for receiving a pulverizing material separately supplied from the outside and connected to the hopper device 13 through a pulverizing material supply pipe 43a, ). It is possible to correspond the hopper device 13 to the hopper device 13 one by one as in the present embodiment and to match one hopper device 13 to one of the hopper devices 13 There is also water.

The receiver 27 receives the granular material or the pulverized material received from the hopper device 13 and transfers the granular material or the pulverized material to the molding device 31. In particular, each receiver 27 is provided with a receiver drive unit 29.

The receiver driving unit 29 senses a situation inside the receiver 27 and transmits the sensed contents to the PLC 23 to allow the PLC 23 to perform an appropriate operation and receives a control signal from the PLC 23 . At the same time, the receiver drive unit 29 controls the operation of the switching valve 45. The switching valve 45 is opened and closed by the receiver driving unit 29 and determines the feed of the raw material to the receiver 27.

The receiver driving unit 29 may include, for example, a pressure sensor for sensing the internal pressure of the receiver 27, a weight sensor or optical sensor capable of sensing the residual amount of the raw material in the receiver 27, and the like.

A lamp 27a as an operation notification means is provided on the outer side of each of the receivers 27. [ The lamp 27a operates when the raw material is supplied to the inside of the receiver 27 or when the raw material is discharged from the receiver 27 toward the molding apparatus 31 to inform the operator.

Particularly, the power for driving the lamp 27a is supplied from the power source 25. The electric power of the power source 25 is transmitted to the PLC 23, the main cable 35 and the connecting module 39, is dispersed through the dispersion cable 37, and then is applied to the lamp 27a. To this end, it is a matter of course that a power line (not shown) for driving the lamp is wired between the dispersion cable 37 and the lamp 27a.

In addition, each of the receivers 27 is connected to a vacuum pressure output unit 33 through a vacuum line 41. The vacuum pressure output unit 33 is a vacuum pump that operates by receiving power from an external power source 25 to lower the pressure inside the receiver 27 so that the raw material in the hopper unit 13 is supplied to the receiver 27 To be sucked in. Various types of valves (not shown) may be applied to the vacuum tube 41.

The decompression line 41 includes a main tube 41a extending along the arrangement line of the receiver 27 with one end thereof connected to the vacuum pressure output section 33 and a main tube 41b branched from the main tube, A branch tube 41b connected to the respective branch tubes 41b and 27, and a switching valve 45 installed in each of the branch tubes 41b. It goes without saying that only the selected receiver 27 can be filled with the raw material by selectively opening the switching valve 45 through the receiver drive unit 29. [

The molding apparatus 31 is a device for molding and producing a desired shape product by applying heat and pressure to the raw material delivered from the receiver 27. The molding apparatus 31 may be an injection molding machine.

On the other hand, the operation of supplying the raw material in the hopper apparatus 13 to the molding apparatus 31 is implemented by the PLC 23. [ As described above, the PLC 23 constitutes one distributed network system together with the main cable 35, the connecting module 39, and the dispersion cable 37, and controls the apparatus.

The main cable 35 includes two communication lines 35a and 35b for transmitting a control signal to the receiver driving unit 29, a power line 35c for supplying electric power, a receiver driving unit 29 And the grounding line 35d for grounding constitutes one bundle. It goes without saying that the power line 35c and the ground line 35d are electrically connected to the receiver drive unit 29. [ The inside of the dispersion cable 37 also includes the communication line, the power line and the ground line.

Since the power line 35c is built in the main cable 35 and the dispersion cable 37 as described above, it is not necessary to separately connect the power line for supplying power to each receiver unit 29 for each receiver 27. [ For example, there is no need to install separate power lines in each receiver unit 29 and connect them to a wall outlet.

The connecting module 39 is an element connected to the main cable 35 and spaced apart along the longitudinal direction of the main cable 35. The connecting module 39 serves to connect the main cable 35 and the dispersion cable 37 and may be spaced at the same interval as the physical distance of the receiver 27. It goes without saying that the number of the connecting module 39 and the number of the receiver 27 are also the same.

One connecting module 39 and a plurality of receivers 37 may be connected and the connecting module 39 and the receiver 37 may be one to one corresponded to each other.

In any case, the distributed network system having the above-described structure is not as complicated and simple as the main cable 35 and the dispersion cable 37 are composed of one bundle.

The distributed network system having such a configuration not only provides various data and diagnostic contents necessary for the operation of the automatic supply device to the operator in real time, but also minimizes errors of the user that may occur, and also provides flexibility, scalability, To maximize overall functionality and performance.

As described above, the communication lines 35a and 35b provided in the main cable 35 and the dispersion cable 37 are connected to the respective receiver drive units 29, and the power line 35c is also connected to the receiver 27 So that the operator can operate the self-feeding device through the PLC 23 at any time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

11: raw material storage part 13: hopper device
15: raw material supply pipe 17: raw material transfer pipe
19: valve 21: flow meter
23: PLC 25: Power supply
25a: power cable 27: receiver
27a: Lamp 29: Receiver drive unit
31: molding apparatus 33: vacuum pressure output section
35: main cable 35a, 35b: communication line
35c: power line 35d: ground wire
37: Dispersion cable 39: Connecting module
41: Decompression line 41a: Main tube
41b: branch tube 43: crushing material storage section
43a: crushing feed pipe 45: switching valve

Claims

A raw material storage part 11 in which granular synthetic resin raw materials are stored and to which a raw material supply pipe 15 is connected;
A crushing material storage section 43 to which a crushing material supply pipe 43a is connected as a container for receiving the reusable crushing material obtained by collecting and crushing the synthetic resin left after the molding operation;
The granular material is supplied from the raw material storage unit 11 or the crushed material storage unit 43 through the raw material supply pipe 15 or the crushed material is supplied through the crushed material supply pipe 43a, A hopper device (13);
The hopper device 13 is connected to the respective hopper devices 13 through the raw material feed pipe 17 in a one-to-one correspondence with the hopper devices 13 and receives the granular material or the pulverizing material from the hopper device 13, A plurality of receivers (27) for delivering signals to the receiver (31);
A vacuum pressure output unit 33 which is operated by an electric power supplied from the outside and outputs a vacuum pressure;
The vacuum pressure output unit 33 is connected to the receiver 27 to form a negative pressure in the receiver 27. The vacuum pressure output unit 33 is connected to the vacuum pressure output unit 33, A decompression line 41 including an elongated main tube 41a and a branch tube 41b branched from the main tube and connected to each of the receivers 27;
A switch valve 45 installed in each of the branch tubes 41b and opened / closed by a signal transmitted from the outside;
An operation informing means attached to the receiver 27 for informing the operator that the granular material or the pulverizing material enters the receiver 27 or is supplied from the receiver 27 to the molding apparatus 31;
A receiver driving unit 29 for detecting information including the presence or absence of the granular material or the pulverizing material in the receiver 27 and the internal pressure of the receiver 27 and operating the switching valve 45;
Is connected to the power source 25 through the power cable 25a and guides the power from the power source 25 to the vacuum pneumatic output unit 33, the operation notification means, the receiver drive unit 29, A PLC 23;
A main cable (35) extending in the longitudinal direction with one end thereof connected to the PLC (23) and transmitting a control signal and power;
A plurality of connecting modules (not shown) for outputting signals and power passing through the main cable 35 to the outside of the main cable 35 while being separated from the main cable 35 in the longitudinal direction of the main cable 35 39);
Which is connected to the receiver driving unit 29 in a state of being connected to the respective connecting modules 39 and which transmits the control signal and electric power received through the connecting module 39 to the receiver driving unit 29 and operation notifying means, And a dispersion cable (37) for distributing the molding material.

The method according to claim 1,
The main cable (35) includes:
Characterized in that the two network communication lines (35a, 35b), the two power lines (35c), and the one ground line (35d) are bundled into one bundle.