KR100272033B1 - Molten resin strand feeding device with strand cutting means - Google Patents

Abstract

The present invention is a molten resin extrusion apparatus having a nozzle surface or an inclined nozzle surface in the horizontal state, a bad resin combined with a vertical horizontal type that can be used to compatible with the bad resin removal device in the vertical or horizontal type corresponding to the nozzle surface It relates to a removal device, the configuration of which is as follows.

Melt resin is discharged through one or more extrusion nozzles formed on the nozzle surface and the melted resin extrusion apparatus comprising a cooling means consisting of a cooling plate, a side plate, a cooling pipe for cooling it, the upper side of the side plate is provided with a rotating shaft and a rotating hole on both sides The rotating plate is provided, and the outer side of the rotating plate is provided with a drive unit for performing a linear movement in parallel to the nozzle surface, the moving unit is provided between the drive unit provided on both sides of the cooling means, the cooling means (10) At the rear of the) is characterized in that the angular rotation means for causing the cooling means to be changed to an angle corresponding to the nozzle surface.

Description

Initial molten resin strand feeding device with strand cutting means

The present invention relates to a bad molten resin removal device also serves as a vertical horizontal type, in more detail, in a resin extrusion device having a nozzle surface or an inclined nozzle surface in a horizontal state, to remove the bad molten resin corresponding to the nozzle surface The present invention relates to a bad molten resin removing device that also serves as a vertical or horizontal type, which can be used as a vertical or horizontal type device.

Among thermoplastic resins on ordinary strands produced through a general resin extrusion device, which are extruded into a plurality of strands as in the case of forming similar noodles, the initially melted resin is different in color mixing or heating temperature. Due to the incomplete resin is extruded, there are many known types of devices for removing such poor molten resin and are divided into horizontal type and vertical type.

That is, the above-mentioned horizontal type bad molten resin removing device (hereinafter referred to as horizontal type) refers to a type of removing the bad resin initially extruded with respect to the extrusion nozzle passing through the center on the inclined nozzle surface. The defective molten resin removal device is inclined at a horizontal or constant angle so as to correspond to the photographic nozzle surface.

The vertical molten molten resin removing device (hereinafter referred to as a vertical type) refers to a type for removing defective molten resin initially extruded with respect to an extrusion nozzle vertically penetrating the center on a horizontal nozzle surface. The bad molten resin removing device is mounted in a vertical state so as to correspond to the horizontal nozzle surface.

FIG. 7 is a schematic view showing a horizontal type of the bad resin removing device of US Pat. No. 4,528,157, which will be described below.

Cooling plate 200 to move the thermoplastic resin on the strand extruded through the extrusion nozzle 230, the upper portion 210 is installed on the upper end of the cooling plate 200 and movable from the non-operation position to the operation position, It is located on the upper side of the upper portion 210 is characterized in that it is composed of cutting means 220 for cutting the defective resin while moving from the non-operational position to the operating position.

In particular, the cutting means 220 is located above the upper moving part 210, the support 222 having a rotating shaft 224, and the cutter 228 is inserted in front of the rotating shaft 224 The lever arm 226 and the rear of the lever arm 226 and the support 222 is composed of a spring 229 connecting each other.

Therefore, referring to the operation relationship of the conventional bad resin removal apparatus configured as described above, in the case of removing the bad molten resin initially extruded through the extrusion nozzle 230, first, the upper moving portion 210 in a horizontal state The cutter 228 located at the tip of the lever arm 226 constituting the cutting means 220 collides with the nozzle surface 232, thereby moving the cutter arm 226 around the pivot shaft 224. The front is rotated downward to cut the defective molten resin that is initially extruded.

However, the horizontal poor molten resin removing device is applicable only to the inclined nozzle surface 232, while the vertical type poor molten resin removing device applied to the horizontal nozzle surface is incompatible.

In addition, the bad melt resin removal device of the horizontal type configured as described above is the upper moving portion 210 located on the upper portion of the cooling plate 200 is moved horizontally when removing the initial bad resin, the lever in conjunction with the Since the cutter 228 and the nozzle face 232 coupled to the tip of the arm 226 collide with each other and then rotate along the inclined nozzle face 232, the cutter may be deformed or worn out due to frequent removal. There was also a problem that the cutting efficiency of the bad resin is lowered.

On the other hand, Figure 8 is a schematic diagram showing the vertical type of the defective molten resin removal apparatus of Japanese Patent Publication No. 89-39323, which will be described in detail as follows.

In the molten resin transfer control device having a cooling plate 300 for transferring the resin in the molten strand form flowing from the at least one extrusion nozzle 330 to the cutting device, the cooling plate of the The upper side is provided with a cutting rotary part 310 for changing the discharge direction of the initial melt discharged poor melt resin and then extruded high-quality molten resin, the lower side of the cooling plate 300 to rotate the entire cooling plate 300 It is characterized in that the rotating shaft 320 for mounting.

Therefore, the bad melt resin removal apparatus of the vertical type configured as described above, when the non-operation, the cold plate 300 maintains the vertical state around the rotating shaft 320, after which the bad resin removal device is operated When the discharge of the bad resin is finished, the cooling plate 300 is rotated to the rear around the rotating shaft 320 and at the same time the cutting rotary unit 310 located on the upper side of the cooling plate 300 is rotated It is to guide the bad resin discharged to the rear. After that, the molten resin of continuous high quality is discharged to the upper surface of the cooling plate 300 and is supplied to the cutting device.

However, the vertical type bad melt removal apparatus of the vertical type is applicable only to the horizontal nozzle surface 232, whereas the vertical type bad melt removing apparatus applied to the inclined nozzle surface has a problem that is incompatible. .

In addition, the vertical molten molten resin removal device configured as described above is the cutting rotary part 310 formed on the upper side of the cooling plate 300 during the initial defective resin removal operation is centered on the rotating shaft 320 with respect to the horizontal nozzle surface By being rotated to, there was a problem in that the cutting efficiency of the poor resin falls.

Accordingly, the present invention is invented to solve the above problems, by moving the linear movement to the nozzle surface horizontally on the upper side of the cooling means, by mounting an angular rotation means on the lower side of the cooling means, horizontal or inclined It is an object of the present invention to provide an apparatus for removing a bad molten resin which serves as a vertical horizontal type compatible with each other irrespective of a resin extrusion apparatus having a nozzle surface.

In addition, by allowing the moving unit to be operated horizontally with the nozzle surface, there is also an object to improve the cutting efficiency of the defective melt resin is initially extruded.

On the other hand, by mounting a separate resin cutting means on the upper portion of the moving part so that the cutter for cutting the bad resin can be spaced by the elasticity of the spring, the cutter is in close contact with the nozzle surface and at the same time without moving the impact on the nozzle surface It is also intended to prevent molten resin from remaining on the nozzle surface after cutting the molten resin.

In the present invention for achieving the above object, the resin is discharged through at least one extrusion nozzle formed on the nozzle surface, the cooling plate, the side plate, in the melt resin extrusion apparatus comprising a cooling means consisting of cooling pipes, the side plate The upper side of the rotating plate is provided with a rotating shaft and a rotating hole on both sides, the outer side of the rotating plate is provided with a drive unit for performing a linear movement parallel to the nozzle surface, between the drive unit provided on both sides of the cooling means The moving unit is installed, the rear of the cooling means is characterized in that the angular rotation means for changing the cooling means to the angle corresponding to the nozzle surface is installed.

1 is a perspective view showing a bad melt resin removing device of the present invention,

Figure 2 is an exploded perspective view showing a bad melt resin removing apparatus of the present invention,

3 is a schematic view showing a state in which the defective molten resin removing device of the present invention is installed horizontally with respect to the nozzle surface,

Figure 3a is a discharge state of the defective melt resin,

Figure 3b shows a state in which a good quality resin is discharged after the poor melt resin is discharged.

4 is a schematic view showing a state in which the defective molten resin removing device of the present invention is installed perpendicular to the nozzle face;

5 is a schematic view showing a state in which the resin cutting means is mounted on the moving part of the defective melt resin removing device of the present invention,

6 is a schematic view showing another embodiment of the melt cutting means according to the present invention;

7 is a schematic view showing a horizontal type of a conventional bad melt removal apparatus;

8 is a schematic view showing a vertical type of a conventional bad melt removal apparatus;

Explanation of symbols for main parts of the drawings

10 cooling means 12 cooling plate

14 side plate 16 cooling plate

20: nozzle surface 22: extrusion nozzle

30: rotating plate 32: rotating shaft

34: adjusting screw 36: rotating slot

40: drive portion 42: rodless cylinder

44: guide shaft 46: bracket

48: connector 50: moving part

52: guide plate 54: cooling pipe

56: blowout hole 60: angle rotation means

62: rotation axis 64: angle adjustment unit

70: cover 80: support bracket

90: resin cutting means 92: holder fixing

94: case 96: holder

98: spring 100: cutter

102: inclined portion 104: cut portion

110: cutting roller

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

1 is a perspective view showing a bad resin removal apparatus of the present invention, the configuration thereof is as follows.

The resin is discharged through one or more compression nozzles 22 formed on the nozzle surface 20 and includes a cooling means 10 including a cooling plate 12, a side plate 14, and a cooling pipe 16 for cooling the resin. In the melt resin extrusion apparatus,

The upper side of the side plate 14 is provided with a rotating plate 30 having a rotating shaft 32 and a rotating hole 36 on both sides, the outer side of the rotating plate 30 in parallel to the nozzle surface 20 The driving unit 40 for performing a linear motion is installed, the moving unit for cutting the defective molten resin initially discharged through the extrusion nozzle 22 between the driving unit 40 provided on both sides of the cooling means 10 ( 50 is installed, the angular rotation means 60 is installed in the rear of the cooling means 10 so that the cooling means 10 can be angularly rotated with respect to the nozzle surface.

Hereinafter, the present invention will be described in more detail with reference to FIG. 2.

The rotating plate 30, the drive unit 40 is fixed to the outside, one side is equipped with a rotating shaft 32 connected to the side plate 14, the other side is an arc shape centered on the rotating shaft 32 It is formed in the arc-shaped hole 36 is fastened to the driving unit 40 through a plurality of adjustment screw 34 is formed.

The drive unit 40 is installed outside the rotating plate 30, and a rodless cylinder 42 and a guide shaft 44 are mounted on the lower side and the upper side thereof, and the rodless cylinder 42 and the guide shaft ( On the outside of the 44 is a bracket 46 consisting of a connector 48 on the upper side to be connected to the moving part 50 is made.

The moving part 50 is mounted on the bracket 46 constituting the driving part 40, and has a plurality of ejection holes 56 provided therein so that the guide plate 52 positioned at the front side can be cooled separately. The cooling pipe 54 is mounted.

The angular rotation means 60 is provided with a rotating shaft 62 mounted in the horizontal direction to fix the cooling means 10 to the support bracket 80 fixed to the ground, one side of the rotating shaft 62 Is equipped with an angle adjusting unit 64 to change the angle of the cooling means.

On the other hand, the cover 70 is installed on the upper end of the side plate 14 constituting the cooling means 10 to prevent the cooling water sprayed through the cooling pipe 16 mounted between the side plates 14 to splash out. do.

Therefore, the operational relationship of the present invention configured as described above is as follows.

3 is a bad molten resin removal device of the present invention is mounted (horizontal type) is applied in a horizontal or inclined state with respect to the inclined nozzle surface,

First, when changing the position of the cooling means 10 to correspond to the inclined nozzle surface 20, the rotation axis 62 is centered using the angular rotation means 60 located behind the cooling means 10. To change the angle of the cooling means 10. Next, the angle of the rotating plate 30 mounted on the outside of the side plate 14 is changed so that the moving part 50 can be advanced back and forth in parallel with the inclined nozzle surface 20. The end is to be located above the extrusion nozzle (22).

Then, when the rodless cylinder 42 of the driving unit 40 is lowered at the time when the extrusion of the defective resin discharged initially through the compression nozzle 22 of the nozzle surface 20 ends, the nozzle surface 20 As the bracket 46 mounted on the rodless cylinder 42 inclined at the same angle as the inclination angle is lowered, the moving part 50 connected to the bracket 46 is moved linearly downwardly in parallel with the nozzle surface 20 to discharge the initial stage. The bad resin is to be cut.

Thereafter, when the cutting of the defective resin is completed as described above, the high quality molten resin is extruded from the extrusion nozzle 22, and the extruded high quality molten resin falls on the upper surface of the guide plate 52 formed on the moving part 50. At the same time it passes through the guide plate 52 and passes through the cooling plate 12 to the cutting device.

Next, when the extrusion of the resin through the extrusion nozzle 22 is completed, the rodless cylinder 42 of the drive unit 40 is lifted up reversely, the moving unit 50 is returned to the position before the operation to the next operation To prepare.

4 is a view showing a state in which the defective molten resin removing device of the present invention is vertically mounted (vertical type) and applied to a horizontal nozzle surface.

First, when changing the cooling means 10 to a vertical position corresponding to the horizontal nozzle surface 20, the rotation shaft 62 using the angular rotation means 60 located behind the cooling means 10. The angle of the cooling means 10 is changed around. Next, the angle of the rotating plate 30 mounted on the outside of the side plate 14 is changed so that the moving part 50 can be advanced back and forth in parallel with the horizontal nozzle surface 20. The end is to be located in front of the extrusion nozzle (22).

Thereafter, when the rodless cylinder 42 of the driving unit 40 is operated at the time when the extrusion of the defective resin discharged initially through the compression nozzle 22 of the nozzle surface 20 is completed, the rodless is horizontally changed. Due to the inclination of the cylinder 42 and the horizontal nozzle surface 20 coinciding, the moving part 50 connected to the bracket 20 mounted on the rodless cylinder 42 moves linearly to the rear, and is initially discharged. The molten resin will be cut.

Thereafter, after the cutting of the defective resin is completed as described above, the high-quality molten resin continuously extruded through the extrusion nozzle 22 falls to the guide plate 52 formed on the moving part 50 and passes through the guide plate 52. After that, the cold plate 12 is transferred to the cutting device.

Thereafter, when the cutting of the defective resin is completed as described above, the high quality molten resin is extruded from the extrusion nozzle 22, and the extruded high quality molten resin falls on the upper surface of the guide plate 52 formed on the moving part 50. At the same time it passes through the guide plate 52 and passes through the cooling plate 12 to the cutting device.

Next, when the extrusion of the resin through the extrusion nozzle 22 is completed, the rodless cylinder 42 of the drive unit 40 is moved forward again, the moving unit 50 is returned to the position before the operation to the next operation To prepare.

5 is a schematic view showing a state in which the resin cutting means 90 is mounted on the moving part of the defective resin removing device of the present invention, which is installed at both sides of the moving part 50 and coupled to a plurality of fastening elements. A holder fixing part 92 formed of a case 94 in which a spring is mounted on the holder, and a holder installed in the case 94 to be spaced under elasticity of the spring 98, and a cutter 100 mounted at an end thereof. Resin cutting means 90 consisting of 96 is installed.

In addition, the cutter 100 is installed at the end of the holder 96, the inclined portion 102 is formed on one side, it is possible to reasonably perform the cutting of the synthetic resin in the form of a strand at the end of the inclined portion (102) Cutting 104 is formed.

Therefore, the spring 98 is installed in the holder 96 installed in the case 94, thereby minimizing the wear of the cutter 100 along the nozzle face 20. Figure 6 shows another embodiment of the resin cutting means of the present invention, is installed at the end of the hole 96 is characterized in that the cutting roller 110 is coupled to the means for cutting the initial defective resin will be.

According to the present invention as described above, a resin having a nozzle surface or an inclined nozzle surface in a horizontal state is provided by attaching a moving part that linearly moves horizontally with the nozzle surface on the upper side of the cooling means, and an angular rotation means below the cooling means. Irrespective of the extruder, the bad resin removal unit can be used as a vertical or horizontal type compatible device.

In addition, by allowing the moving part to be operated horizontally with the nozzle surface, there is also an effect to improve the cutting efficiency of the defective resin is initially extruded.

On the other hand, by mounting a separate resin cutting means on the upper portion of the moving resin so that the cutter for cutting the bad resin can be spaced by the elasticity of the spring, so that the cutter is in close contact with the nozzle surface to move without impacting the nozzle surface. There is also an effect that can prevent the resin remaining on the nozzle surface after cutting the resin.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible.

Claims (6)

The molten resin is discharged through one or more extrusion nozzles 22 formed on the nozzle surface 20 and includes a cooling means 10 consisting of a cooling plate 12, a side plate 14, and a cooling pipe 16 for cooling it. In the melt resin extrusion apparatus, The upper side of the side plate 14 is provided with a rotating plate 30 having a rotating shaft 32 and a rotating hole 36 on both sides, the outer side of the rotating plate 30 in parallel to the nozzle surface 20 The driving unit 40 for performing a linear movement is installed, the moving unit 50 is installed between the driving unit 40 provided on both sides of the cooling means 10, the cooling means in the rear of the cooling means 10 Initial failure molten resin removal device serving as a vertical and horizontal type, characterized in that the angle rotation means 60 is installed to change the angle (10) corresponding to the nozzle surface (20). According to claim 1, The rotating plate 30 is mounted on the outer side of the side plate 14, one side is equipped with a rotating shaft 32 connected to the side plate 14, the other side the rotating shaft 32 The initial failure molten resin removal device as a vertical horizontal type, characterized in that the arc-shaped hole 31 is formed in which the drive unit 40 is fastened through a plurality of adjusting screws 34 on the circular arc. The rodless cylinder (42) and the guide shaft (44) are mounted on the lower side and the upper side, and the rodless cylinder (42) is mounted on the outer side of the rotating plate (30). And a bracket 46 including a connector 48 connected to the moving part 50 on the outer side of the guide shaft 44 and the initial bad molten resin removing device serving as a vertical horizontal type. According to claim 1, The moving part 50 is mounted to the bracket 46 constituting the drive unit 40, the inside of the plurality of ejection holes so that the guide plate 52 located in front to be cooled separately ( Initial failure molten resin removal device also serves as a vertical horizontal type characterized in that the cooling pipe 54 is formed 56 is mounted 5. The holder fixing part 92 of claim 4, wherein both sides of the moving part 50 are installed at the lower side and are coupled to a plurality of fastening elements, and the case fixing part has a spring installed therein. ) Initial failure melting combined with the vertical and horizontal type, characterized in that the resin cutting means 90 is installed in the interior is spaced by the elasticity of the spring 98 and the holder 96 is mounted to the end of the cutter 100 is installed Resin remover. [6] The apparatus of claim 5, wherein the cutting rollers 110 are coupled to the ends of the holders.