KR20190127399A - Injection molding machine with cooler - Google Patents

Abstract

The invention relates to an individual cooler installation injection device which comprises: a device table; a pair of molds disposed on one side of the device table and performing a substantial injection process on a product; a mold support movably supporting the pair of molds; and an individual cooler provided at the device table and the mold support, and supplying coolant to the pair of molds during the injection process.

Description

Injection molding machine with individual cooler

The present invention relates to an injection device attached to an individual cooler, and more particularly, to significantly reduce equipment costs and foot prints, and to significantly reduce energy consumption for cooling during the injection process. It relates to an injection device attached to an individual cooler.

Injection molding machine (injection molding machine) is a molding machine used for injection molding can be classified into plunger type, screw pre-plasticization type, in-line screw type, vent type and the like.

In the plunger type, the molding material is pressurized into the heating cylinder by the plunger and gradually sent to the front part of the cylinder. Through the nozzle).

The screw preliminary plasticization method has a plasticizer dedicated screw in addition to the plunger, and the plasticized material is accumulated in the front of the plunger and ejected from the plunger.

In-line screwing is a method in which the screw plasticizes the molding material and also acts as a plunger.

In the vent type, a gas extraction hole or a groove called a vent is provided in the center of the heating cylinder of the in-line screw injection molding machine, and the pressure is reduced to remove water or gas generated by melting of the material.

An example of such various types of injection apparatus is shown in FIGS. 1 and 2. 1 is a structural diagram of a general injection molding machine, and FIG. 2 is a partial side cross-sectional view of the moving plate of FIG. 1.

Referring to these drawings, a general injection molding machine 2 has a mold in which an injection part 4 through which a raw material of resin is supplied and discharged, and a mold 14 having a groove corresponding to the shape of a product for injection molding are mounted. Part 8 is included.

The injection part 4 discharges the raw material of the resin supplied through the upper hopper through the injection nozzle 6 through the screw cylinder.

In the mold part 8 corresponding to the injection part 4, a substantially rectangular moving plate 12 is provided to be movable back and forth by predetermined moving means provided in the mold part 8. The tie bar 10 is inserted into the corner of the moving plate 12 to guide the moving plate 12 to be moved.

In addition, a mold 14 corresponding to the shape of the product to be injected is mounted on the front portion of the movable plate 12, and a fixed plate fixed to the front end of the tie bar 10 is provided on the front portion of the movable plate 12. 16 is provided.

An injection nozzle 6 of the injection unit 4 is inserted into the central portion of the fixed plate 16 so that the recessed portion 18 penetrates through the injection nozzle 6 so as to accurately perform injection.

On the other hand, this type of injection machine (2) is often encountered in the vicinity, the system as shown in Figure 3 is required to drive the injection machine (2).

3 is a cooling circulation system for the injection machine of FIG. Referring to this figure, in the prior art it can be seen that several injection molding machines 2 are connected to a system for cooling.

In other words, the cooling tower 41, the large water tank 42, the cooling pump 43, the outdoor cooling line 44, the in-factory cooling line 45, the machine internal line 45 and several injection machines (2) It is connected, it is possible to proceed the injection process by the injection machine 2 while cooling the injection machine (2) through their full operation.

As described above, in the case of the related art, a cooling circulation system, that is, a cooling tower 41, a large water tank 42, a cooling pump 43, an outdoor cooling line 44, an in-factory cooling line 45, a machine internal line 45, and the like. It is a form in which it is bite with the injection molding machine 2, so it takes not only a lot of equipment cost but also a lot of space, namely, a foot print.

In addition, even if one of the injection molding machine (2) to operate, cooling tower 41, large water tank 42, cooling pump 43, outdoor cooling line 44, in-house cooling line 45, machine internal line ( 45) There is a problem that inevitably requires a lot of energy because the entire full line, such as 45) must be operated.

In addition, since the large water tank 42, the cooling pump 43, the outdoor cooling line 44, etc. are external facilities, there is a fear of freezing during the winter, and thus, a new concept of an individual cooler injection device for solving these problems is proposed. Necessity arises.

Korean Patent Office Application No. 20-2015-0000630 Korean Patent Office Application No. 20-2003-0028576 Korean Patent Office Application No. 20-2003-0018895 Korean Patent Office Application No. 20-2002-0003941

It is an object of the present invention to provide a separate cooler-mounted injection apparatus that can significantly reduce equipment costs and foot prints, as well as significantly reduce energy consumption for cooling during the injection process.

The object is an apparatus table; A pair of molds disposed on one side of the apparatus table and performing a substantial injection process on a product; A mold support for movably supporting the pair of molds; And an individual cooler provided in the apparatus table and the mold support, the individual cooler supplying cooling water to the pair of molds during the injection process.

The individual cooler is provided in the device table, the cooling module for cooling the cooling water to a predetermined temperature; A coolant tank provided in the apparatus table and connected to the cooling module, the coolant tank storing coolant cooled by the cooling module; And a distributor provided at the mold support and distributing the cooling water in the cooling water tank to the pair of molds.

The cooling module, the cooling water tank, the distributor and the pair of molds may be connected in a closed loop by a plurality of cooling water lines, and a pump may be coupled to at least one of the plurality of cooling water lines.

An input unit for inputting a predetermined input signal for performing the injection process; And a controller for controlling the operation of the individual coolers based on the input signal of the input unit.

An injection cylinder assembly (INJECTION CYLINDER ASSY) disposed on the other side of the apparatus table and performing the injection process by interacting with the pair of molds may be further included.

The injection cylinder assembly comprises an injection body (INJECTION BODY); An injection piston rod connected to the injection body (INJECTION PISTON ROD); An injection piston cover coupled to the injection body and protecting the injection piston rod (INJECTION PISTON COVER); A nozzle piston rod as heating means coaxially connected with said injection piston rod (NOZZLE PISTON ROD); A nozzle piston cover protecting the nozzle piston rod; And a moving actuator provided at one side of the injection body and movably supporting the injection piston rod.

The moving actuator is connected to the injection piston rod, the injection rambox (INJECTION RAMBOX) is provided with a cylinder device therein; A rambox shaft connected to the injection body and the injection rambox (RAMBOX B / R SHAFT); And a plurality of rambox oil seal covers coupled to the injection rambox for driving the cylinder device.

According to the present invention, it is possible to significantly reduce the equipment cost and foot print (foot print), as well as to significantly reduce the energy consumption for cooling during the injection process than conventional.

In addition, the air filter function is installed in the cooler to purify the air during the operation of the cooler to remove dust in the factory. Existing cooling facilities install a separate cooling water pipe inside the factory, which raises facility costs and maintains cleanliness in the factory. According to the invention, the cooling system in the fms injection machine saves unnecessary equipment cost and has many advantages in the cleanliness of the factory.

1 is a structural diagram of a general injection molding machine.
2 is a partial side cross-sectional view of the moving plate of FIG. 1.
3 is a cooling circulation system for the injection machine of FIG.
Figure 4 is a schematic appearance structural diagram of the injection device of the individual cooler installation according to an embodiment of the present invention.
FIG. 5 is a view schematically showing a position where an individual cooler is installed in FIG. 4.
6 is a partial side cross-sectional structural view of the injection cylinder assembly.
FIG. 7 is a plan view of FIG. 6.
8 is a control block diagram of an individual cooler installation injection apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

However, since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text.

For example, since the embodiments may be variously modified and have various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea.

In addition, the object or effect presented in the present invention does not mean that a specific embodiment should include all or only such effects, it should not be understood that the scope of the present invention is limited by this.

In this specification, this embodiment is provided to make the disclosure of the present invention complete, and to fully convey the scope of the invention to those skilled in the art. And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations and well known techniques are not described in detail in order to avoid obscuring the present invention.

On the other hand, the meaning of the terms described in the present invention is not limited to the dictionary meaning, it will be understood as follows.

When a component is referred to as being "connected" to another component, it should be understood that there may be other components in between, although it may be directly connected to the other component. On the other hand, when a component is said to be "directly connected" to another component, it should be understood that there is no other component in between. On the other hand, other expressions describing the relationship between the components, such as "between" and "immediately between" or "neighboring to" and "directly neighboring to", should be interpreted as well.

Singular expressions should be understood to include plural expressions unless the context clearly indicates otherwise, and terms such as "include" or "have" refer to features, numbers, steps, operations, components, parts, or parts thereof described. It is to be understood that the combination is intended to be present and does not exclude in advance the possibility of the presence or addition of one or more other features or numbers, steps, operations, components, parts or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined.

Generally, the terms defined in the dictionary used are to be interpreted as being consistent with the meanings in the context of the related art, and should not be interpreted as having ideal or excessively formal meanings unless clearly defined in the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the embodiments, the same reference numerals are given to the same components, and in some cases, the description of the same reference numerals will be omitted.

4 is a schematic structural view of an individual cooler installation injection apparatus according to an embodiment of the present invention, FIG. 5 is a view schematically showing a position where an individual cooler is installed in FIG. 4, and FIG. 6 is a partial side of the injection cylinder assembly. FIG. 7 is a cross-sectional structural view, FIG. 7 is a plan structural view of FIG. 6, and FIG. 8 is a control block diagram of an individual cooler injection apparatus according to an embodiment of the present invention.

Referring to these drawings, the individual cooler-mounted injection apparatus according to the present embodiment can significantly reduce the equipment cost and foot print, as well as significantly reduce the energy consumption for cooling during the injection process. As such, it may include an apparatus table 110, a pair of molds 120, a mold support 130, and an individual cooler 140.

Apparatus table 110 forms an appearance structure of the injection apparatus according to the present embodiment. Since the pair of molds 120, the mold support 130, and the individual cooler 140, etc. are to be mounted by position, the device table 110 may be applied as a rigid body having a constant volume.

The pair of molds 120 is disposed on one side of the device table 110, and is a portion for performing a substantial injection process for the product. As one of the pair of molds 120 approaches the other, the injection process may proceed.

The mold support 130 serves to support the pair of molds 120 to be movable. Therefore, the mold support 130 may be both an actuator and the like, including the structure.

Meanwhile, as described above with reference to FIG. 3, in the related art, a cooling circulation system, that is, a cooling tower 41, a large water tank 42, a cooling pump 43, an outdoor cooling line 44, a factory cooling line 45, and a machine Since the inner line 45 and the like are in the form of being separated from the injection machine 2, a large amount of equipment cost is required and a lot of space, that is, a foot print is increased.

In addition, even if one of the injection molding machine (2) to operate, cooling tower 41, large water tank 42, cooling pump 43, outdoor cooling line 44, in-house cooling line 45, machine internal line ( 45) There is a problem that inevitably requires a lot of energy because the entire full line, such as 45) must be operated.

In this embodiment, to solve this problem, the individual cooler 140 is applied to the injection apparatus.

As such, when the individual coolers 140 are applied to each injection apparatus, equipment cost and foot print can be greatly reduced, and energy consumption for cooling during the injection process can be significantly reduced.

The individual cooler 140 is provided in the device table 110 and the mold support 130, and serves to supply the coolant to the pair of molds 120 during the injection process.

The individual cooler 140 is provided in the device table 110, the cooling module 141 for cooling the coolant at a predetermined temperature, and provided in the device table 110 and connected to the cooling module 141, the cooling module A coolant tank 142 in which the coolant cooled in 141 is stored, and a distributor 143 provided in the mold support 130 and distributing the coolant in the coolant tank 142 to the pair of molds 120. can do.

In the present embodiment, the cooling module 141, the coolant tank 142, the distributor 143, and the pair of molds 120 forming the individual coolers 140 are closed-loop by a plurality of coolant lines L1 to L4. Is connected.

In this case, a pump 145 may be coupled to the second and fourth cooling water lines L2 and L4 of the plurality of cooling water lines L1 to L4, respectively. The pump 145 of the second coolant line L2 transfers the coolant from the coolant tank 142 to the distributor 143, and the pump 145 of the fourth coolant line L4 is connected to the cooling module (142) in the distributor 143. 141) to deliver the coolant. Of course, the pump 145 may be applied to only one side unlike the illustrated one.

The injection cylinder assembly (INJECTION CYLINDER ASSY, 170) is further provided on the other side on the apparatus table 110 in the injection apparatus according to the present embodiment to perform the injection process by interacting with the pair of molds 120.

The injection cylinder assembly 170 is coupled to the injection body 171 (INJECTION BODY), the injection piston rod 172 (INJECTION PISTON ROD) connected to the injection body 171, and the injection body 171, the injection piston Injection piston cover 173 for protecting rod 172, nozzle piston rod 174 as a heating means coaxially connected with injection piston rod 172, and NOZZLE PISTON ROD. In addition, the nozzle piston cover 175 (NOZZLE PISTON COVER) to protect the nozzle piston rod 174 is provided on one side of the injection body 171, the moving actuator 180 to support the injection piston rod 172 to be movable. ) May be included. The nozzle piston rod 174 is a substantial heating element.

In this embodiment, the moving actuator 180 is connected to the injection piston rod 172, the injection rambox 182 (INJECTION RAMBOX) is provided with a cylinder device 181 therein, the injection body 171 and the injection ram Rambox B / R SHAFT connected to the box 182 and a plurality of rambox oil seal covers 184 coupled to the injection rambox 182 for driving the cylinder device 181. (RAMBOX OIL SEALCOVER). As oil is supplied to one side or the other side of the plurality of rambox oil seal covers 184, the cylinder device 181 may be driven to operate, that is, move the injection piston rod 172.

As in this embodiment, by implementing the moving body connected to the heating means, that is, the cylinder device 181 connected through the injection piston rod 172, it is possible to present a structure that does not require oil cooling and cooling of the moving actuator 180. have.

Meanwhile, the injection unit according to the present embodiment may further include an input unit 150 and a controller 160.

The input unit 150 serves to input a predetermined input signal for the injection process. It may be in the form of a button.

The controller 160 controls the operation of the individual coolers 140 based on the input signal of the input unit 150. The controller 160 performing this role may include a central processing unit 161 (CPU), a memory 162 (MEMORY), and a support circuit 163 (SUPPORT CIRCUIT).

The central processing unit 161 may be one of various computer processors that may be industrially applied to control the operation of the individual coolers 140 based on the input signal of the input unit 150 in the present embodiment.

The memory 162 is connected to the central processing unit 161. The memory 162 may be installed locally or remotely as a computer-readable recording medium, and may be readily available, such as, for example, random access memory (RAM), ROM, floppy disk, hard disk, or any digital storage form. It may be at least one memory.

The support circuit 163, SUPPORT CIRCUIT, is coupled with the central processing unit 161 to support typical operation of the processor. Such support circuit 163 may include a cache, a power supply, a clock circuit, an input / output circuit, a subsystem, and the like.

In the present embodiment, the controller 160 controls the operation of the individual coolers 140 based on the input signal of the input unit 150. Such a series of control processes may be stored in the memory 162. Typically software routines may be stored in memory 162. Software routines may also be stored or executed by other central processing units (not shown).

Although the process according to the invention has been described as being executed by software routines, at least some of the processes of the invention may be performed by hardware. As such, the processes of the present invention may be implemented in software running on a computer system, in hardware such as integrated circuits, or by a combination of software and hardware.

According to the present embodiment having the structure and action as described above, it is possible to significantly reduce the equipment cost and the foot print (foot print) as well as to significantly reduce the energy consumption for cooling during the injection process than conventional.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

110: device table 120: mold
130: mold support 140: individual cooler
141: cooling module 142: coolant tank
143: Dispenser 145: Pump
150: input unit 160: controller
170: injection cylinder assembly 171: injection body
172: injection piston rod 173: injection piston cover
174: nozzle piston rod 175: nozzle piston cover
180: moving actuator 181: cylinder device
182: injection rambox 183: rambox shaft
184: Rambox Oil Seal Cover

Claims (7)

Device table;
A pair of molds disposed on one side of the apparatus table and performing a substantial injection process on a product;
A mold support for movably supporting the pair of molds; And
And a separate cooler provided in the apparatus table and the mold support, the cooler configured to supply coolant to the pair of molds during the injection process.
The method of claim 1,
The individual cooler,
A cooling module provided in the apparatus table and cooling the cooling water to a predetermined temperature;
A coolant tank provided in the apparatus table and connected to the cooling module, the coolant tank storing coolant cooled by the cooling module; And
And a distributor provided at the mold support and configured to distribute the cooling water in the cooling water tank to the pair of molds.
The method of claim 2,
The cooling module, the cooling water tank, the distributor and the pair of molds are connected in a closed loop manner by a plurality of cooling water lines,
At least one of the plurality of coolant line injection pump installation device, characterized in that the pump (pump) is coupled.
The method of claim 1,
An input unit for inputting a predetermined input signal for performing the injection process; And
And a controller for controlling the operation of the individual coolers based on the input signal of the input unit.
The method of claim 1,
An injection device installed on a separate cooler further comprising an injection cylinder assembly disposed on the other side of the apparatus table and performing the injection process by interacting with the pair of molds.
The method of claim 5,
The injection cylinder assembly,
Injection body (INJECTION BODY);
An injection piston rod connected to the injection body (INJECTION PISTON ROD);
An injection piston cover coupled to the injection body and protecting the injection piston rod (INJECTION PISTON COVER);
A nozzle piston rod as heating means coaxially connected with said injection piston rod (NOZZLE PISTON ROD);
A nozzle piston cover protecting the nozzle piston rod; And
It is provided on one side of the injection body, the individual cooler installation injection device comprising a moving actuator for movably supporting the injection piston rod.
The method of claim 6,
The moving actuator is,
An injection rambox connected to the injection piston rod and having a cylinder device provided therein;
A rambox shaft connected to the injection body and the injection rambox (RAMBOX B / R SHAFT); And
And a plurality of rambox oil seal covers coupled to the injection rambox for driving the cylinder device.

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