KR20140013467A - Moisture and gas removable device for a forming machine - Google Patents

Moisture and gas removable device for a forming machine Download PDF

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Publication number
KR20140013467A
KR20140013467A KR1020120080477A KR20120080477A KR20140013467A KR 20140013467 A KR20140013467 A KR 20140013467A KR 1020120080477 A KR1020120080477 A KR 1020120080477A KR 20120080477 A KR20120080477 A KR 20120080477A KR 20140013467 A KR20140013467 A KR 20140013467A
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KR
South Korea
Prior art keywords
molding material
impurity removal
flow path
gas
discharge
Prior art date
Application number
KR1020120080477A
Other languages
Korean (ko)
Inventor
안병준
Original Assignee
안병준
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 안병준 filed Critical 안병준
Priority to KR1020120080477A priority Critical patent/KR20140013467A/en
Publication of KR20140013467A publication Critical patent/KR20140013467A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1753—Cleaning or purging, e.g. of the injection unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/20—Injection nozzles
    • B29C45/24—Cleaning equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/63—Venting or degassing means

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention relates to a water and gas removal apparatus for a molding apparatus that can greatly increase the effect of removing the water and gas contained in the molding material by a simple configuration.
According to the present invention, there is provided an apparatus in which a molten molding material is located on a path through which molten molding material proceeds to remove impurities including moisture or gas in the molding material; A plurality of impurity removal blocks 31 provided in the form of blocks formed in a predetermined area are composed of a block assembly 30 which is integrally fastened by the fastening means 40; Each impurity removal block 31 is formed to extend in a predetermined length on one side or both sides, and the flow path groove 32 through which the molding material proceeds, and is formed to communicate with one side or both sides of the flow path groove 32 to form impurities in the molding material. A discharge path 33 formed to be discharged and a discharge groove 34 formed to extend at an end of the discharge path 33; The fastening means 40 includes a bolt shaft 42 which is fastened in the thickness direction of the impurity removal block 31 so that the impurity removal blocks 31 are in close contact with each other. A degassing device is provided.

Description

Moisture and gas removable device for a forming machine

The present invention relates to a water and gas removal device for molding apparatus, and more particularly to a water and gas removal apparatus for molding apparatus that can greatly increase the effect of removing the water and gas contained in the molding material by a simple configuration. It is about.

In general, a device that melts a molding material of synthetic resin and injection molding is to heat and mix the molding material and supply it to a mold manufactured in a predetermined shape to produce a molded product in which the resin material is plasticized into a predetermined shape. A nozzle head is provided to supply a molding material, to be heated and mixed in a heating cylinder, and to supply a molten molding material to a mold coupled to a tip of the heating cylinder.

In the molding process by the molding apparatus, the resin scrap or other defective products removed from the molded product is recycled to use the molding material. When using such a recycled molding material, even if a dehumidifier or a dryer is provided on the hopper side, the molding material is used. Due to the high possibility of containing moisture, gas, or other foreign matter in the apparatus, a device for removing water and gas is installed in the nozzle head.

An example of a nozzle head provided with such a water and gas removal device will be described with reference to the drawings. As shown in FIG. 1, the nozzle head 10 has a screw shaft 12 formed at one end thereof, and a nozzle body 11 having a discharge tip 13 coupled to the other end thereof. The nozzle body 11 is provided. As described above, the ring assembly 20 for removing water and gas in the molding material is embedded.

The ring assembly 20 is formed by overlapping a plurality of washer rings 21 having a through hole 22 corresponding to the flow passage 14 of the nozzle body 11 at a central portion thereof, The discharge passage 23 is formed finely to communicate with the through hole 22 on one side or both sides, and the discharge groove 24 extending at the end of the discharge passage 23 is formed, the washer ring 21 is In a state in which a plurality of overlapping molding materials proceed, they are coupled to be in close contact with each other by a bolt shaft 25 penetrating through one side thereof.

However, the conventional ring assembly 20 has a through hole 22 through which molding material is formed in the center, and at the same time, the discharge passage 23 and the discharge groove 24 communicating with the through hole 22 are formed. As the ring shape is formed on the outer circumferential side of the through hole 22, the fastening position of the bolt shaft 25 is formed on the circumferential surface of the washer ring 21 in a state spaced apart from the through hole 22.

Therefore, in the portion where the through hole 22 is formed, the adhesion force is relatively lowered by the bolt shaft 25, so that the molding material flowing through the through hole 25 may leak into the overlapping portion of the washer ring 21. will be.

In addition, the conventional ring assembly 20 forms a flow path through which the molding material passes by the through holes 22 formed in the respective washer rings 21. The flow path formed by the ring assembly 20 is in a straight line. It is formed to pass through the molding material is not subjected to a special physical resistance, in this case there is a limit not only to discharge the moisture or gas contained in the molding material to the discharge path 23 side, due to this moisture However, there is a problem that the effect of removing the gas is significantly reduced.

Korean Registered Patent Publication No. 10-0972810 2010. 07. 22.

The present invention is to solve the problems as described above, the present invention is not only provided with a structurally rigid airtight structure but also the removal efficiency provided to effectively discharge the water and gas contained in the molding material by a simple configuration It is to provide a water and gas removal device for molding apparatus that can be significantly increased.

According to a feature of the present invention, there is provided an apparatus, comprising: an apparatus positioned on a path through which a molten molding material proceeds to remove impurities including moisture or gas in the molding material;

A plurality of impurity removal blocks 31 provided in the form of blocks formed in a predetermined area are composed of a block assembly 30 which is integrally fastened by the fastening means 40;

Each impurity removal block 31 is formed to extend in a predetermined length on one side or both sides, and the flow path groove 32 through which the molding material proceeds, and is formed to communicate with one side or both sides of the flow path groove 32 to form impurities in the molding material. A discharge path 33 formed to be discharged and a discharge groove 34 formed to extend at an end of the discharge path 33;

The fastening means 40 is formed, characterized in that it comprises a bolt shaft 42 which is fastened in the thickness direction of the impurity removal block 31 so that each of the impurity removal blocks 31 are in close contact with each other A water and degassing device for the device is provided.

According to another feature of the invention, the flow path groove 32 is provided with a water and gas removal device for molding apparatus, characterized in that formed in a wave form or zigzag form to change in the direction of the molding material.

According to another feature of the invention, the flow path groove 32 is provided with a water and gas removal device for forming apparatus, characterized in that a plurality of projections 35 are formed along the longitudinal direction.

As described above, according to the present invention, a plurality of impurity removal blocks 31 in the form of blocks are closely coupled to each other in a state of being interviewed by bolt shafts 42 fastened through in the thickness direction to form one block assembly 30. By forming a, it is possible to easily fasten the bolt shaft 42 to the central portion and the periphery of the impurity removal block 31 as the impurity removal block 31 in the form of a block having a predetermined area so that each impurity removal block ( 31) It is not only possible to combine in a state in which the adhesion between each other is maximized, but also because of this, the molding material flowing through the flow path grooves 32 is less likely to leak from the overlapping portions of each impurity removal block 31.

In addition, according to the present invention, the shape of the flow path groove 32 is not formed in a straight line, but is formed in a wave or zigzag shape, so that a part of the molding material is changed in the process of changing the advancing direction of the molding material flowing on the flow path groove 32. Physical changes such as accumulation, pressure, or speed may cause the moisture, gas, or bubbles located inside the molding material to be easily discharged to the outside, thereby increasing the effect of removing impurities such as moisture and gas.

In addition, according to the present invention, a plurality of protrusions 35 are formed in the lengthwise direction on the flow path groove 32 so that a part of the molding material is accumulated or collided by the protrusions 35 during the process of molding material. There is an advantage that can further increase the effect of removing impurities by weighting the physical change as described above.

1 is a front sectional view showing an example of a conventional device;
Figure 2 is a front sectional view showing an installation state according to an embodiment of the present invention
3 is an exploded perspective view according to an embodiment of the present invention;
Figure 4 is a side cross-sectional view, in accordance with an embodiment of the present invention,

The objects, features and advantages of the present invention will become more apparent from the following detailed description. Hereinafter, description will be made with reference to the accompanying drawings.

2 to 4 show an embodiment of the invention, Figure 2 is shown in the installation state according to an embodiment of the present invention, Figure 3 and Figure 4 is an exploded perspective view according to an embodiment of the present invention And side cross-sectional views.

Figure 2 is an example of the installation state of the present invention, it is shown to be mounted to the nozzle head 10 similarly in the prior art. Typically, the nozzle head 10 is provided with a screw shaft 12 is formed at one end, the nozzle body 11 is coupled to the discharge tip 13 at the other end, the present invention is a plurality of impurities removal block having a predetermined area 31 forms one block assembly 30 to be coupled to the nozzle body 11, but the present invention is not limited to being mounted on the nozzle head 10. It can be provided as needed on the path.

The detailed configuration of the present invention will be described with reference to FIGS. 3 and 4 as follows. The impurity removal block 31 is provided in the form of a block of square cross-section formed in a predetermined area, the impurity removal block 31 is integrally fastened by the fastening means 40 in a state in which a plurality of mutually interviewed one block To form the assembly 30.

Here, each of the impurity removing blocks 31 is formed on one side or both sides of the channel groove 32 through which a molding material is formed extending to a predetermined length, and the channel groove 32 is adjacent to the impurity removal block 31. Formed to correspond to each other to form a flow path for the molding material, it is obvious that it may be formed in a rectangular cross-sectional shape as shown, or may be formed in a variety of cross-sectional shapes such as circular or ellipse.

In addition, the flow path groove 32 is preferably formed to be bent in a wave or zigzag form, which is repeated up and down, as shown, rather than extending in a straight line. In the process to be changed according to the physical change such as pressure or speed to the molding material, it is possible to easily discharge the water, gas or bubbles located inside the molding material to the outside.

The flow path groove 32 is formed on one side or both sides of the discharge passage 33 in the form of pores to remove the water or gas discharged from the molding material, the end of the discharge passage 33 compared to the discharge passage 33 An extended discharge groove 34 is formed to accumulate impurities.

The discharge groove 34 communicates with the discharge line 36 extending to one side of the impurity removal block 31, and the discharge line 36 has a fluid for pushing out impurities in the discharge groove 34. It is supposed to flow. In this case, the fluid supplied through the discharge line 36 may use air, water, or oil. In the case of air, some of the molding material may be stuck on the discharge path, causing clogging. Since there is a risk of rusting, it is preferable to use oil so that the problems described above do not occur.

On the other hand, each impurity removal block 31 as described above is formed integrally by the fastening means 40 to form a block assembly 30, the fastening means 40 is the impurity removal block 31 And a bolt shaft 42 for fastening the fastening block 41 added to both sides of the c) and the fastening block 41 in a state of being interviewed with the impurity removing block 31.

Here, the bolt shaft 42 is fastened through the impurity removal block 31 in the thickness direction so that the impurity removal block 31 is in close contact with each other, and the bolt shaft 42 is preferably A plurality of fasteners are fastened to the center and both ends of the impurity removal block 31 to increase adhesion between adjacent impurity removal blocks 31 to prevent the molding material flowing in the flow path groove 32 from leaking.

Reference numerals not described above are provided on the inlet side of the nozzle body 11 to indicate a strainer 15 for removing foreign matter primarily from a molding material, and other reference numerals denote the present invention in the nozzle body 11. The guide member 16 is formed with a guide hole 17 to correspond to the flow path groove 32 of the heater, and another reference numeral is embedded in the block assembly 30 to prevent the temperature of the molding material from being lowered. 50 and a bracket 51 supporting the same, the heater 50 may be provided in the form of a pipe embedded in the block assembly 30 or in the form of a band surrounding the circumference of the block assembly 30. .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

Claims (3)

An apparatus, comprising: an apparatus positioned on a path through which a molten molding material proceeds to remove impurities including water or gas in the molding material;
A plurality of impurity removal blocks 31 provided in the form of blocks formed in a predetermined area are composed of a block assembly 30 which is integrally fastened by the fastening means 40;
Each impurity removal block 31 is formed to extend in a predetermined length on one side or both sides, and the flow path groove 32 through which the molding material proceeds, and is formed to communicate with one side or both sides of the flow path groove 32 to form impurities in the molding material. A discharge path 33 formed to be discharged and a discharge groove 34 formed to extend at an end of the discharge path 33;
The fastening means 40 is formed, characterized in that it comprises a bolt shaft 42 which is fastened in the thickness direction of the impurity removal block 31 so that each of the impurity removal blocks 31 are in close contact with each other Moisture and degassing device for the device.
The apparatus of claim 1, wherein the flow path groove (32) is formed in a wave shape or a zigzag shape so as to change in the direction of movement of the molding material.
  The apparatus of claim 1 or 2, wherein the flow path groove (32) is provided with a plurality of protrusions (35) along a longitudinal direction.
KR1020120080477A 2012-07-24 2012-07-24 Moisture and gas removable device for a forming machine KR20140013467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120080477A KR20140013467A (en) 2012-07-24 2012-07-24 Moisture and gas removable device for a forming machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120080477A KR20140013467A (en) 2012-07-24 2012-07-24 Moisture and gas removable device for a forming machine

Publications (1)

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KR20140013467A true KR20140013467A (en) 2014-02-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210098144A (en) * 2020-01-31 2021-08-10 한양대학교 산학협력단 Water trapping and removing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210098144A (en) * 2020-01-31 2021-08-10 한양대학교 산학협력단 Water trapping and removing device

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