KR101537028B1

KR101537028B1 - Multiple resin melt unit

Info

Publication number: KR101537028B1
Application number: KR1020140045222A
Authority: KR
Inventors: 심성희
Original assignee: 심성희
Priority date: 2014-04-16
Filing date: 2014-04-16
Publication date: 2015-07-16

Abstract

The present invention relates to a multiple resin melting apparatus, which comprises: a first hopper inserted with a resin raw material; a first transport screw with one end exposed to the outside for pumping the raw material; a first driving unit for providing a rotation power with the first transport screw; a second hopper inserted with a resin raw material; a second transport pipe inserted with the raw material; a second transport screw with one end exposed to the outside for pumping the raw material; a second driving unit for providing a rotation power with the second transport screw; a first heater for providing a heat source with the first transport pipe and the second transport pipe; a nozzle including a plurality of first communication holes communicating with the first transport pipe and a plurality of second communication holes communicating with the second transport pipe; and a control box for controlling operation of the driving unit and the first heater. According to the present invention, the apparatus can reduce costs consumed, and can enhance melting performance of the apparatus.

Description

Multiple resin melt unit "

The present invention relates to a multi-resin melting apparatus, and more particularly, to a multi-resin melting apparatus capable of simultaneously melting a polyethylene and a polypropylene recycled resin through a single apparatus, The present invention relates to a multi-resin melting apparatus capable of rapidly melting a large amount of resin and enhancing the melting performance of the apparatus.

In general, thermoplastic resins can be repetitively molded by applying heat. Therefore, in the case of a product made of a thermoplastic resin, recycling through a post-use recycling process is preferable in terms of resource saving and environmental protection. For this purpose, a resin melting apparatus is widely used in which the resin is melted by applying pressure and heat of the resin to form a reusable form.

On the other hand, polyethylene (PE) and polypropylene (PP) resins are typically used as reusable thermoplastic resins. Since the two types of resins are difficult to mix with each other, After the resin is selectively collected and collected, the respective resins are melted and regenerated to be recycled.

Therefore, in order to recycle each waste resin, at least two resin melting apparatuses are required, so that not only the cost required for operating and managing the apparatus is high, but also each wastewater should be transferred to each apparatus to perform a melting process. There is a problem that it takes much time to melt regeneration.

[0001] JP-A-2000-185317 (2000.07.04) [Patent Document 2] Korean Published Patent Application No. 10-2004-0000716 (2004.01.07)

Disclosure of the Invention The present invention has been proposed in order to solve all of the problems as described above. It is an object of the present invention to provide a structure capable of simultaneously melting polyethylene and polypropylene recycled resin through a single apparatus, The present invention also provides a multi-resin melting apparatus capable of rapidly recovering a large amount of resin and enhancing the melting performance of the apparatus.

In addition, since the heat source of the first heater is provided as a first conveying pipe inside and provided as a second conveying pipe outside, a heat source radiating from the first heater is used without external loss, so that the multi-resin melting Device.

According to another aspect of the present invention, there is provided a multi-resin melting apparatus including a first hopper into which a raw material for a resin is injected, a first conveying unit connected to the first hopper and connected to the first hopper, A first conveying screw that is built in the first conveying pipe and press-feeds the raw material that has been rotated into the first conveying pipe while being forwardly exposed and one end thereof is exposed to the outside; And a second hopper which is connected to the second hopper so as to surround the outer circumferential surface of the first transfer pipe and which is fed into the second hopper, A second conveying screw which is built in the second conveying pipe and press-feeds the raw material, which is rotated and inserted into the second conveying pipe, one end of which is exposed to the outside; A first heater disposed between the first conveying pipe and the second conveying screw for providing a heat source to the first conveying pipe and the second conveying pipe; A nozzle having a plurality of first communication holes communicating with the first conveyance pipe and a plurality of second communication holes communicating with the second conveyance pipe, the nozzles closing the end of the conveyance pipe, A control box for controlling the operation of the first heater,
The first drive unit includes a first drive motor for providing a rotational force, a first gear installed on the shaft of the first drive motor and rotated by receiving a rotational force of the first drive motor, And a second gear formed on one end of the first conveying screw and rotated together with the first conveying screw and engaged with the first gear,
A third gear provided on the shaft of the second driving motor and rotated by receiving a rotational force of the second driving motor; a second gear provided on the outer side of the second conveying pipe; And a fourth gear which is formed on one end of the second conveying screw and rotates together with the second conveying screw and is engaged with the third gear,
And the first drive motor and the second drive motor are operated through control of the control box.

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A second heater positioned to surround the outer circumferential surface of the second conveyance pipe so as to spirally surround the outer circumferential surface of the second conveyance pipe and providing a heat source to the second conveyance pipe; and a heat source radiating from the second heater, Wherein the second heater is operated through control of the control box.

As described above, according to the multi-resin melting apparatus of the present invention, since a structure in which polyethylene and polypropylene recycled resin can be simultaneously melted through one apparatus is proposed, It is possible to reduce the cost required in comparison with the conventional method, and it is also possible to rapidly melt and regenerate a large amount of resin, thereby enhancing the melting performance of the device.

Also, since the heat source of the first heater is provided as a first conveying pipe inside and the outside is provided as a second conveying pipe, a heat source radiating from the first heater is used without external loss, so that the energy use efficiency of the apparatus is extremely excellent .

1 is a longitudinal cross-sectional view of a multi-resin melting apparatus according to an embodiment of the present invention
FIG. 2 is a cross-sectional view taken along line AA of the multi-resin melting apparatus shown in FIG.
Fig. 3 is a view showing the state of use of the multi-resin melting apparatus shown in Fig.

A multi-resin melting apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Detailed descriptions of well-known functions and constructions that may be unnecessarily obscured by the gist of the present invention will be omitted.

FIG. 1 is a longitudinal cross-sectional view of a multi-resin melting apparatus according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of a multi-resin melting apparatus according to an embodiment of the present invention, FIG. 3 is a view showing the state of use of the multi-resin melting apparatus shown in FIG. 1, and FIG.

As shown in the drawing, a multi-resin melting apparatus 100 according to an embodiment of the present invention includes a first hopper 10, a first conveying pipe 20, a first conveying screw 30, 1 driving unit 40, a second hopper 50, a second conveying pipe 60, a second conveying screw 70, a second driving unit 80, a first heater 90, (110), and a control box (120).

As shown in FIG. 1, the first hopper 10 is filled with a resin material, and the upper part of the first hopper 10 is widely opened for easy introduction of the raw material.

3B, the raw material introduced into the first hopper 10 is pushed forward through the first conveyance screw 30 to be inserted into the first conveyance pipe 20 to be laid down.

1 and 2, the first conveying pipe 20 is connected to the first hopper 10 to be connected to the first hopper 10, and the raw material introduced into the first hopper 10 flows into the first conveying pipe 20, The first hopper 10 and the first feed screw 30 are spaced apart from each other and the front side is opened.

Here, the open front of the first transfer pipe 20 is closed through the nozzle 110 to be opened.

As shown in FIGS. 1 and 2, the first conveying screw 30 is rotatably supported by the first driving unit 40, which is embedded in the first conveying pipe 20 and rotates, 1 feed pipe 20, and one end of the raw material is exposed to the outside.

Here, the first conveying screw 30 has the same structure as a conventional conveying screw, and a detailed description thereof will be omitted.

As shown in FIGS. 1 and 2, the first driving unit 40 provides a rotational force to the first conveying screw 30,

A first gear 42 provided on the shaft 41a of the first drive motor 41 and rotated by receiving a rotational force of the first drive motor 41; And the first conveying screw 30 is formed on one end of the first conveying screw 30 exposed to the outside of the first conveying pipe 20 and rotates together with the first conveying screw 30, And a second gear 43 meshing with the second gear 43.

3B, when the first gear 42 is rotated by receiving the rotational force from the first driving motor 41, the second gear 43, which is engaged with the first gear 42, The first conveying screw 30 in which the second gear 43 is positioned is rotated together with the rotation of the first conveying screw 30 so that the first conveying screw 30 is inserted into the first conveying pipe 20 The raw material is fed forward.

It goes without saying that the first driving motor 41 is operated through the control of the control box 120 to be traced.

As shown in FIG. 1, the second hopper 50 is filled with a resin material, and the upper portion of the second hopper 50 is widely opened for easy introduction of the raw material.

Here, the raw material fed into the second hopper 50 is pushed forward through the second conveying screw 70 to be fed into the second conveying pipe 60 to be laid down.

1 and 2, the second conveyance pipe 60 is formed to surround the outer circumferential surface of the first conveyance pipe 20, and is connected to the second hopper 50 to communicate with the second conveyance pipe 20, The second hopper 50 is provided with a space for the raw material to be introduced therein and a second feed screw 30 to be inserted therein. do.

Here, the open front of the second conveyance pipe 60 is closed through the nozzle 110.

1 and 2, the second conveying screw 70 is installed in the second conveying pipe 60 and rotates by receiving a rotational force from the second driving unit 80 to be conveyed, 2 feed pipe 60, and one end of the raw material is exposed to the outside.

Here, since the first transfer pipe 20 is located inside the second transfer screw 70, a predetermined space is formed in the second transfer screw 70.

As shown in FIGS. 1 and 2, the second driving unit 80 provides a rotational force to the second conveying screw 70,

A third gear 82 provided on the shaft 81a of the second drive motor 81 and rotated by receiving the rotational force of the second drive motor 81; And a second conveying screw 70 which is formed on one end of the second conveying screw 70 exposed to the outside of the second conveying pipe 60 and rotates together with the second conveying screw 70, And a fourth gear 83 which is engaged with the second gear 83.

3B, when the third gear 82 is rotated by the rotation of the second driving motor 81, the fourth gear 83, which is engaged with the third gear 82, The second conveying screw 70 in which the fourth gear 83 is positioned is rotated together with the rotation of the second conveying screw 70 so that the second conveying screw 70 is inserted into the second conveying pipe 60 The raw material is fed forward.

Needless to say, the second drive motor 81 is operated through the control of the control box 120.

1 and 2, the first heater 90 is positioned between the first conveying pipe 20 and the second conveying screw 70 and is positioned between the first conveying pipe 20 and the second conveying screw 70, 2 transfer pipe 60 to provide a heat source.

That is, as shown in FIG. 3C, since the heat source emitted from the first heater 90 is conducted to the first and second conveyance pipes 20 and 60, the first and second conveyance pipes 20 and 60 And the raw material of the recycled resin to be fed is melted and fed forward.

Here, the heat source of the first heater 90 is provided to the first conveying pipe 20 in the inside and the second conveying pipe 60 is provided outside, so that the heat source, which is emitted from the first heater 90, It is used without external loss and is designed to be very efficient in energy use.

1 and 2, the nozzle 110 closes the ends of the conveying pipes 20 and 60, and a plurality of first communication holes (not shown) communicating with the first conveying pipe 20, (111) and a plurality of second communication holes (112) communicating with the second conveyance pipe (60).

That is, as shown in FIG. 3E, the resin that is melted and forwardly pushed by the first transfer pipe 20 is discharged to the outside through the first communication hole 111, and the second transfer pipe 60 Since the resin which is pressurized forward by being melted is discharged to the outside through the second communication hole 112, the recycled resin raw material fed into the first hopper 10 and the recycled resin raw material fed into the second hopper 50 It can be easily obtained by dividing it.

As shown in FIG. 1, the control box 120 controls the operation of the driving units 40 and 80, the first heater 90, and the second heater 131 to be heated.

1 and 2, a second heater 131 is disposed to spirally surround the outer circumferential surface of the second conveyance pipe 60 and provides a heat source to the second conveyance pipe 60, And a heat insulating case 132 having the second heater 131 therein to prevent the heat source, which is emitted from the second heater 131, from being wasted to the outside.

It goes without saying that the second heater 131 operates through the control of the control box 120. [

That is, as shown in FIG. 3D, the second heater 131 provides a heat source to the second conveyance pipe 60 to provide heat to the material conveyed to the second conveyance pipe 60, To be melted.

Therefore, since the raw material to be supplied to the second conveyance pipe 60 can be supplied with a higher (greater) heat source than the first conveyance pipe 20, the raw material to be supplied to the first conveyance pipe 20 It is preferable that the polypropylene raw material having a higher melting point than the polypropylene raw material is melted

In the multi-resin melting apparatus 100 of the present invention having the above-described components, the polyethylene feedstock is fed into the first hopper 10, the polypropylene feedstock is fed into the second hopper 50, It is possible to reduce the cost required for operating and managing a plurality of resin melting apparatuses in the past, and it is also possible to quickly regenerate a large amount of the resin, thereby enhancing the melting performance of the apparatus There is an effect.

The heat source of the first heater 90 is provided to the first transfer pipe 20 inside and is provided to the second transfer pipe 60 outside, Is used without external loss, and the energy use efficiency of the device is very excellent.

The multi-resin melting apparatus 100 according to the embodiment of the present invention having the above structure melts the resins of the two raw materials at the same time as follows.

First, as shown in FIG. 3A, a selected polyethylene raw material (melting point: 105 to 110 ° C.) is introduced into the first hopper 10 to be distributed to the first conveying pipe 20, and the polypropylene raw material : 165 캜) is introduced into the second hopper 50 and circulated to the second conveying pipe 60.

3B, the first driving unit 40 is operated to rotate the first conveyance screw 30 built in the first conveyance pipe 20 to rotate the first conveyance pipe 30, The second feed portion 60 is rotated to rotate the polypropylene feeder 60 and the polypropylene feeder 60 feeds the polyethylene feed to the second feed portion 60. The second feed portion 60 rotates the second feed screw 70, Propylene feedstock is fed forward.

3C, a heat source, which is emitted from the first heater 90, is provided to the first conveying pipe 20 and the second conveying pipe 60, so that the conveying pipe 20, The raw material is slowly melted and pressed.

As shown in FIG. 3D, since the polypropylene raw material injected into the second transfer pipe 60 has a melting point somewhat higher than that of polyethylene, it is melted smoothly by being supplied with a heat source emitted from the second heater 131, .

3E, the resin which is melted and forwardly pushed by the first transfer pipe 20 is discharged to the outside through the first communication hole 111 of the nozzle 110, The resin injected into the first hopper 10 is discharged to the outside through the second communicating hole 112 of the nozzle 110 so that the resin injected into the second hopper 50, Can be easily obtained and recycled.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. You will understand the point. It goes without saying that variations can be made by those skilled in the art without departing from the spirit of the present invention. Accordingly, the scope of claim of the present invention is not limited within the scope of the detailed description, but will be defined by the following claims and technical ideas thereof.

10. First hopper 20. First delivery pipe
30. First conveying screw 40. First driving part
41. First drive motor 41a, 81a. shaft
42. First gear 42. Second gear
50. Second hopper 60. Second transfer pipe
70. Second conveying screw 80. Second driving part
81. Second drive motor 82. Third gear
83. Fourth gear 90. First heater
110. Nozzle 111. First communication hole
112. Second communication hole 120. Control box
131. Second heater 132. Insulation case
100. Multiple resin melting apparatus

Claims

A first hopper 10 into which a resin material is injected;
A first conveying pipe (20) connected to the first hopper (10) and connected to the first hopper (10) and through which the raw material is introduced;
A first conveyance screw (30) which is built in the first conveyance pipe (20) and press - feeds the raw material inputted into the first conveyance pipe (20) while rotating and one end is exposed to the outside;
A first driving unit 40 for providing rotational force to the first conveyance screw 30;
A second hopper 50 into which the resin material is injected;
A second conveying pipe 60 formed to surround the outer circumferential surface of the first conveying pipe 20 and connected to the second hopper 50 to receive the raw material introduced into the second hopper 50;
A second conveyance screw (70) which is built in the second conveyance pipe (60) and press-feeds the raw material, which is rotated into the second conveyance pipe (60), forward at one end and exposed to the outside;
A second driving unit 80 for providing rotational force to the second conveyance screw 70;
A first heater 90 positioned between the first conveying pipe 20 and the second conveying screw 70 to provide a heat source to the first conveying pipe 20 and the second conveying pipe 60;
A plurality of first communication holes 111 communicating with the first transfer pipe 20 and a plurality of second communication holes 111 communicating with the second transfer pipe 60 are formed in the inside of the transfer pipe 20, A nozzle 110 in which a second communication hole 112 is formed; And
And a control box 120 for controlling operations of the driving units 40 and 80 and the first heater 90,
The first driving unit 40 includes a first driving motor 41 that provides a rotational force and a second driving motor 41 that is provided on the shaft 41a of the first driving motor 41 to provide a rotational force of the first driving motor 41 The first conveying screw 30 is rotatably coupled to the first conveying screw 30. The first conveying screw 30 rotates together with the first conveying screw 30. The first conveying screw 30 rotates together with the first conveying screw 30, And a second gear 43 which is engaged with the first gear 42,
The second driving unit 80 is provided on the shaft 81a of the second driving motor 81 to provide the rotational force of the second driving motor 81, And a third gear 82 formed on one end of the second conveyance screw 70 exposed to the outside of the second conveyance pipe 60 and rotated together with the second conveyance screw 70 And a fourth gear 83 coupled with the third gear 82,
Wherein the first drive motor (41) and the second drive motor (81) are operated through control of the control box (120).

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The method according to claim 1,
A second heater 131 positioned to surround the outer peripheral surface of the second conveyance pipe 60 spirally and providing a heat source to the second conveyance pipe 60,
And a heat insulating case 132 having the second heater 131 therein to prevent the heat source, which is emitted from the second heater 131, from being wasted to the outside,
Wherein the second heater (131) is operated through control of the control box (120).