KR200304705Y1 - A reclaiming pellet making device - Google Patents

Abstract

The present invention relates to a regenerated pellet manufacturing apparatus, in particular, when molding a molded article using scrap and scrap grinding raw material, it is possible to reduce the generation of defects such as black spots on the molded article by burning very little scrap grinding material, The present invention relates to a regenerated pellet manufacturing apparatus in which noise and dust are reduced in a factory due to the non-use of a large mill.

The regenerated pellet manufacturing apparatus of the present invention is a shredded knife bundle rotatably installed to crush scraps such as runners in a hopper by a frame part 100 and a first motor provided on a side of a hopper provided on an upper portion of the frame part. A crushing unit 200, a regenerated pellet extruding extruding unit 300 to be heated and extruded by receiving the recycled raw material pulverized in the crushing unit, and a regenerated pellet extruding extruding from the regenerated pellet extruding extruding unit The cooling unit 400 to be transported and cooled, the regenerated pellet tension transfer unit 500 for transferring the recycled pellet extrudates transferred from the cooling unit with a constant tension, and the regenerated pellet tensile transfer unit Regeneration pellet extruding material is characterized in that it comprises a regeneration pellet storage unit 600 to be cut and stored by a cutter rotating in the hopper.

Description

Recycled Pellet Manufacturing Equipment {A RECLAIMING PELLET MAKING DEVICE}

The present invention relates to a regenerated pellet manufacturing apparatus, and more particularly, to reduce the occurrence of defects such as black spots on the molded product when the scrap is recycled and molded, as well as noise and dust is reduced due to the non-use of a large grinding machine The present invention relates to a recycled pellet manufacturing apparatus.

Generally, when manufacturing plastic products in plastic injection molding machines, sprues, runners, and gates are necessarily formed, and these sprues, runners, and gates are recyclable, so they can be recovered and crushed again. It can be reused.

Of course, recycled pellets are used by mixing a new material and a regenerated material at a constant ratio according to the type of raw material, that is, physical properties. It may be used, and it may mix and use using a selector as shown in FIG. 9 and FIG.

That is, the new material and the pulverized recycled material supplied to the raw material tank 3 by the selector 2 installed in the low speed crusher 1 are configured to be supplied to the hopper device 5 at a constant ratio using the hopper loader 4. The raw material supplied to the hopper device 5 is dehumidified by the dehumidification device 6, and the raw material thus dehumidified is supplied to the hopper loader 8 of the hopper 7a of the molding machine 7 to form the molding machine 7. Molded in an unshown mold mounted therein.

The selector 2 is opened and closed for a predetermined time by the first and second cylinders 2c and 2d controlled by a controller (not shown) for the new material inlet pipe 2a and the reclaimed material inlet pipe 2b into which the new material is introduced. At this time, while the vacuum pressure is generated in the housing 2e by the hopper rod 4, the raw material is mixed and supplied to the hopper device 5 at a predetermined ratio.

The crushing of scraps such as a runner for recycling the raw materials used for molding is performed by the worker continuously crushing the scrap-loaded boxes stacked next to the crusher. There is a drawback of having a lot of noise and vibration due to the use of a large capacity shredder to break up a large amount of scrap in a short time, and on the other hand there is a drawback that an operator must avoid. .

In addition, when the recycled raw material is used in a molding machine after grinding, the raw material, which is pulverized in the form of particulates, does not endure high temperature when it is melted inside the molding machine and deteriorates and burns, forming a black spot on the product.

In order to solve this drawback, the shredders are installed next to the molding machine, and scraps such as runners from the molding machine are supplied to the shredder by using a robot and a conveyor (not shown), and the shredder is crushed and supplied again to the molding machine.

However, such a device also has a drawback that the recycled raw materials are pulverized into fine particles and supplied to the molding machine, so that they do not withstand high temperatures when they are melted inside the molding machine and deteriorate and burn, forming black spots on the product.

The present invention was devised to solve the above-mentioned drawbacks, and the recycled pellets were formed by using recycled pellets by extruding the crushed scraps by heating them to a low temperature so as not to deteriorate and cutting them to a certain length and diameter. It is an object of the present invention to provide a recycled pellet manufacturing apparatus that can greatly reduce the occurrence of defects such as black spots on the molded product by combustion.

In addition, the recycled pellet manufacturing apparatus of the present invention is to reduce the noise and dust due to the non-use of a large mill.

1 is a partial cross-sectional view showing a recycled pellet manufacturing apparatus according to an embodiment of the present invention

2 is a plan view of FIG. 1

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a cross-sectional view showing a recycled pellet extrusion part of the recycled pellet manufacturing apparatus according to an embodiment of the present invention

5 is a cross-sectional view showing a cooling unit of the recycled pellet manufacturing apparatus according to an embodiment of the present invention.

6 is a cross-sectional view taken along the line B-B of FIG.

7 is a cross-sectional view taken along the line C-C of FIG.

8 is a perspective view showing a rotary blade of the regeneration pellet manufacturing apparatus according to an embodiment of the present invention

9 is a conceptual view illustrating a state of molding in a molding machine using a conventional recycled pellet

10 is a schematic diagram illustrating the serecta of FIG. 9.

<Description of the symbols for the main parts of the drawings>

100 frame part 200 shredding part

230 Shredded Knife 231 Rotary Blade

300 Recycled Pellets Extruded Part 400 Cooling Part

500 Recycled Pellet Pull Transfer 600 Recycled Pellet Storage

700 Recycled raw material transfer part 800 Auxiliary hopper part

900 blowers

The recycled pellet manufacturing apparatus of the present invention for achieving the above object is rotatably installed to crush scraps such as runners in a hopper by a frame portion and a first motor provided on a side of a hopper provided on the frame portion. A crushing unit including a crushed knife bundle, a regenerated pellet extruding unit extruded to be heated and extruded by receiving the regenerated raw materials crushed by the crushing unit, and a regenerated pellet extruding unit extruded from the regenerated pellet extruding unit extruding unit And a regenerated pellet extruder conveyed by being connected to the regenerated pellet extruded conveying unit, and a regenerated pellet extruder conveying the regenerated pellet extrudates transferred from the cooling unit at a constant tension. It characterized in that it comprises a regeneration pellet storage portion to be cut and stored by a rotating cutter.

The regenerated pellet manufacturing apparatus of the present invention further comprises a regenerated raw material transfer part which receives the regenerated raw material crushed by the crushing part from the top and transfers the regenerated raw material by a fifth motor and a screw rotating by the fifth motor. do.

Regeneration pellet manufacturing apparatus of the present invention is characterized in that it further comprises an auxiliary hopper provided on the upper portion of the frame at regular intervals with the crushing portion to supply the regenerated raw material crushed to the regeneration raw material transfer unit.

The regenerated pellet manufacturing apparatus of the present invention is characterized in that the blower connected to the lower part of the regenerated pellet storage unit is further installed in the frame unit so as to feed and feed the regenerated pellet stored in the regenerated pellet storage unit.

Next will be described in detail based on the accompanying drawings for an embodiment of the present invention.

1 is a partial cross-sectional view showing a recycled pellet manufacturing apparatus according to an embodiment of the present invention, Figure 2 is a plan view of FIG.

1 and 2, the recycled pellet manufacturing apparatus of the present invention includes a frame portion 100, a crushed portion 200, a recycled pellet extruding extruding portion 300, a cooling portion 400, recycled pellets The tension transfer part 500 and the regeneration pellet storage part 600 is included.

Here, the frame part 100 has a skeleton of a rectangular parallelepiped, and the regenerated pellet extruded part 300, the cooling part 400, and the regenerated pellet tensile transfer part 500 at regular intervals from the bottom of the factory. The recycled pellet storage unit 600 is configured to be seated.

The blocker 200 includes a hopper 210 provided on the upper portion of the frame part 100, a first motor 220 that is a power generator provided on a side surface of the hopper 210, and the first motor ( And a shredded knife bundle 230 that is rotatably installed to crush scrap such as an unshown runner supplied into the hopper 210 by 220.

Here, the hopper 210 has a wide upper portion and a narrower lower portion, and is configured such that the crushed scrap discharged to the lower portion is supplied to the regenerated pellet extruding extruding unit 300. The first motor 220 has a capacity of 0.4kw / 4P, a rotational speed of 100rpm, and a pulverization amount of 15kg / hr. The shredded knives 230 are fixed in a different phase of the blade by contacting a plurality of rotary blades 231 as shown in FIG.

In addition, the regenerated pellet extruded part extruded part 300, which is extruded while being supplied with the raw material crushed by the shredding part 200, is installed in the lower part of the frame part 100, as shown in FIGS. And a second motor 310 for generating a rotational force, rotational force transmission members 320 and 330 for transmitting the rotational force of the second motor to a position spaced apart from each other, and a screw connected to the rotational force transmission member 320 to rotate. 340 and a casing 350 wrapped around the screw so that the recycled raw material supplied from the hopper 210 of the shredding part 200 is introduced and transported by the screw 340, and the casing 350 is fixed in the longitudinal direction of the casing. When the power supply is installed in the form of wrapping at intervals to maintain the temperature of the casing at the set temperature of the control unit (not shown), the temperature control band 360 and the screw 340 to cause plastic deformation by heating the recycled raw materials. And ke It comprises a support frame (370 380) for supporting the washing unit 350, respectively.

Here, the rotational force transmission member 320 is a pulley, and the rotational force transmission member 330 is a belt.

In addition, the casing 350 has a pellet inlet 351 which is installed in a direction perpendicular to the screw housing 352 such that a recycled raw material, which is a crushed material of the scrap discharged to the lower portion of the hopper 210, is introduced therein. A nozzle member 353 is coupled to the front end portion of the 352 so that the recycled raw material melted inside the screw housing 352 is extruded through the nozzle hole 353a while the screw 340 rotates.

The temperature adjusting band 360 is installed at a location close to the site where the pellet inlet 351 is installed has a low set temperature, and a side installed close to the nozzle member 353 has a high set temperature.

In addition, the cooling unit 400 for cooling the recycled pellet extrudates extruded from the recycled pellet extrudate extruding unit 300 is transported, as shown in Figure 1 and 2 and 5 and 6, the frame portion The support frame 410 installed on the (100) and the cold air is installed on top of the support frame 410 and the regenerated pellet extruded extruding extruded from the regenerated pellet extruding unit 300 to one end is discharged to the other end The cooling unit 420 is cooled and the upper portion is opened to facilitate the transfer of the recycled pellet extrudate, the cross section is C-shaped, and covered with a cover 420a.

Here, the cooling unit 420 is provided with an air inlet pipe 421a and an air discharge pipe 421b provided with an air inlet pipe 421a and an air discharge pipe 421b so that when cold air is introduced from one side, it is installed in the inner side of the outer pipe. The hole 422a includes an air flow guide pipe 422 formed to penetrate inward from the circumferential surface, and the cooling gas supply pipe 423 having the cooling gas inlet pipe 423a is installed at the outer circumference of the outer pipe 421. If it is possible to improve the cooling capacity of the air supplied to the outer tube (421).

That is, through the nozzle member 353 of the regenerated pellet extruding extruding unit 300 to the opening in the axial direction of the air flow guide pipe 422 and the outer pipe 421 and the cooling gas supply pipe 423. Grasp the extruded regenerated pellet extrudates and feed them to the regenerated pellet tensile conveyer 500 to draw with a constant tension, the regenerated pellet extrudate moving in the central axis direction of the air flow guide pipe 422 is transferred in the axial direction Cooling is made by the cold air supplied to the hole 422a to be solidified.

Meanwhile, the regenerated pellet tensile conveyance unit 500 which transfers the regenerated pellet extrudates transferred from the cooling unit 400 to a constant tension is as shown in FIGS. 1, 2, and 7. The support frame 510 installed on the upper portion, the lower roller 520 installed on the support frame 510, and the upper roller installed on the support frame 510 to be in close contact with the lower roller 520 to rotate in the upper ( 530, a third motor 540 as a power generator installed in the support frame 510 to transmit rotational force to the lower roller 520 and the upper roller 530 by a belt or the like, and the upper roller 530. It includes a cylinder 550 is installed on the upper portion of the support frame 510 to be moved up and down to operate in a manipulator (not shown).

Here, the lower roller 520, the upper roller 530 and the cylinder 550 is provided with a plurality as shown in Figure 1 and 2 so that the plurality of lower roller 520 is rotated in conjunction with the pulley and the belt. And by adjusting the pressing force by operating the cylinder 550 can be properly adjusted the tension of the recycled pellet extruded conveyed.

In addition, a cover 560 may be installed on an upper portion of the support frame 510 so as to prevent dust from sticking to the recycled pellet extrudate, and the cover 560 may be configured to hold and transport the recycled pellet extrudate. 561 is formed.

Auxiliary cover 562 may be installed to prevent foreign substances from entering into the slot 561. Of course, reference numeral 563 is a hole in which the rod of the cylinder 550 is installed.

Meanwhile, as shown in FIGS. 1 and 2, the regenerated pellet storage unit 600 is connected to the regenerated pellet tension transfer unit 500, and a hopper 610 into which the regenerated pellet extruded material is transferred, and the hopper. The cutter 630 is coupled to the fourth motor 620 installed on the side of the 610 and the rotary shaft of the fourth motor 620 to cut the recycle pellet extrudate introduced into the hopper 610 while rotating synchronously. Include.

The recycled pellet cut by the cutter 630 is gathered under the hopper 610 and supplied to the outside.

On the other hand, the fifth motor 710 provided at a predetermined position of the frame unit 100, and the recycled raw material pulverized by the crushing unit 200 while being rotated by the fifth motor 710 is received from the front to the front A screw 720 for transferring and a regeneration raw material transferring unit 700 for transferring the regenerated raw material by the case 730 surrounding the screw may be installed.

The recycled raw material transfer part 700 is necessary when the shredding part 200 and the pellet inlet part 351 provided in the casing 350 of the regenerated pellet extruding part extrusion part 300 are far away from each other. Done.

In addition, the auxiliary hopper portion on the upper portion of the frame portion 100 at regular intervals with the crushing portion 200 to be supplied to the pellet inlet portion 351 to supply the recycled raw material to the recycled raw material transfer part 700. (800) can be installed more.

At this time, the auxiliary hopper unit 800 can provide a recycled pellet that solves the conventional drawbacks by crushing the existing crusher without being teased into the present invention.

In addition, a blower 900 connected to the lower portion of the regeneration pellet storage part 600 may be further installed in the frame part 100 so as to supply and feed the regeneration pellet stored in the regeneration pellet storage part 600. Of course.

When the blower 900 is installed, it is not necessary to use a hopper loader separately to supply recycled pellets to the hopper device.

On the other hand, when the rotary blade 231 provided in the shredding knife bundle 230 of the shredding part 200 is used by inserting a cemented carbide cutter not shown in the drawing, the grinding is performed at the shredding machine during grinding.

Therefore, when a scrap such as a runner is supplied to the hopper 210 of the crushing unit 200 by a robot and a conveyor not shown, the first motor 220 operates while the crushing knife bundle 230 rotates. The runner or the like is crushed by the blade 231.

The scrap such as the runner pulverized in this way is supplied to the regeneration pellet extrusion extruding unit 300 by being supplied to the regeneration raw material conveying unit 700 through the lower portion of the hopper 210 and the auxiliary hopper portion 800, the screw ( The plastic deformation is caused by the heat of the casing 350 heated by the temperature control band 360 while the 340 rotates, and is extruded into the nozzle member 353.

The recycled pellet extrudates extruded into the nozzle member 353 flow into the air flow guide pipe 422 constituting the cooling unit 420 of the cooling unit 400, and are cooled by an operator by hand. It is conveyed along the upper slot of the unit 420 and connected to the regenerated pellet tension transfer unit 500.

The regenerated pellet extruded material connected to the regenerated pellet tension conveying part 500 is brought into close contact with the lower roller 520 and the upper roller 530 to be transferred to the regenerated pellet storage part 600, and the upper roller 530 at first. ) By the operation of the cylinder 550 to adjust the pressing force to be transported.

That is, the regenerated pellet is extruded and enlarged by the nozzle member 353, and the regenerated pellet is conveyed by the regenerated pellet tension conveying part 500, thereby forming a regenerated pellet extruded product having a predetermined diameter.

Of course, at this time, the regenerated pellets are held through the slots 561 formed in the cover 560 of the regenerated pellet tensile transfer part 500, and are inserted to be supplied to the hopper 610 of the pellet regenerated storage unit 600.

Next, the recycled pellet extrudate introduced into the hopper 610 is cut into a predetermined length by a cutter 630 rotating by the motor 620 and stacked in a lower portion.

Then, when the blower 900 is operated, recycled pellets stacked under the hopper 610 by the air supplied to the lower portion of the hopper 610 are forwarded forward by the pressure difference.

As described above, according to the present invention, the recycled raw material crushed scrap is extruded by heating to a low temperature, and then extruded by a tensile force to cut to a certain length and diameter. There is an effect that can greatly reduce the occurrence of a defect.

In addition, according to the present invention, there is an effect to reduce the noise and dust due to the non-use of the large-scale crusher.

An embodiment of the present invention described above and illustrated in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention as long as it will be apparent to those skilled in the art.

Claims (4)

With frame part, A crushing unit including a hopper installed on the upper portion of the frame unit, a first motor provided on the side of the hopper, and a crushing knife bundle rotatably installed to crush scrap in the hopper by the first motor; Regenerated pellet extruding extruding unit for receiving the regenerated raw material pulverized in the crushing unit and extruded while heating; A cooling unit configured to cool the raw material extruded from the recycled pellet extruding extruding unit while being transferred; A regenerated pellet tension transfer unit including a roller for transferring the regenerated pellet extrudates transferred from the cooling unit to a predetermined tension; And a regenerated pellet storage unit for cutting and storing the regenerated pellet extrudates connected to the regenerated pellet tensile conveying unit by a cutter rotating in a hopper by a fourth motor. The method of claim 1, And a regenerated raw material feeder which receives the regenerated raw material crushed by the crushed part from the upper part and transfers the regenerated raw material by a fifth motor and a screw rotating by the fifth motor. The method of claim 2, Recycling pellet manufacturing apparatus further comprises an auxiliary hopper provided on the upper portion of the frame at regular intervals with the crushing portion so as to supply the regenerated raw material to the recycled raw material transfer unit. The method of claim 3, wherein And a blower connected to the lower portion of the regenerated pellet storage unit to supply the regenerated pellet stored in the regenerated pellet storage unit to the air by feeding the regenerated pellet storage unit.