KR102095361B1 - Paint peeling off device for the recycling of waste resin - Google Patents

Abstract

The present invention is installed in the longitudinal direction before and after, the coating resin chip is introduced into the rear entrance and the paint generated in the process of surface-treating the coating resin chip is discharged to the outside through a plurality of holes formed on the surface, and the surface treatment is The finished resin chip is a drum that is discharged to the front outlet; The drum is installed to be rotatable at both sides in a state of being inserted through the central portion of the drum in a high speed, and a screw formed at the rear is provided inside the inlet to transport the coating resin chip to the front and forms a plurality of blades on the circumferential surface to form the coating resin. A shaft that separates the paint of the chip; A drive motor for rotating through a power transmission means coupled to the front end of the shaft; A heater for supplying heat through a preheating tube connected to the inlet of the drum to maintain an internal temperature within a range of 25-50 degrees C; A housing provided with a paint recovery port for recovering paint at the bottom of the drum by wrapping the periphery of the drum to block external leakage of the paint; And a blower through which an air chamber formed inside the shaft is opened into the drum through a hole in the surface and injects air into the air chamber through an air tube coupled to a rear end of the shaft. A circumference of 12) is characterized in that burrs 12a are formed in a direction toward the shaft 20.

Description

PAINT PEELING OFF DEVICE FOR THE RECYCLING OF WASTE RESIN}

The present invention relates to a paint peeling device for a recycled waste paint resin chip, and more specifically, it can be recycled by completely removing paint by surface treatment of a predetermined plastic chip finely shredding a waste plastic product such as a bumper cover for an automobile. It relates to a paint peeling device of a recycled waste paint resin chip.

In general, various plastic and resin products (hereinafter referred to as 'coated resin products') on which automotive bumper covers or paints are applied are molded and manufactured from synthetic resins such as polypropylene (PP), and painted in various colors on the surface of products. Has been applied.

After using the above-mentioned painted resin product, waste products that are discarded due to damage and damage are collected and recycled as a water support fee through a predetermined treatment process. To do this, the paint on the product surface must be completely removed. As a method of removing the paint, chemical treatment methods using chemicals such as hydrochloric acid and sulfuric acid or mechanical treatment methods using frictional force of a friction member (brush) are typical. However, in the former chemical treatment method, the treatment time is long, the removal efficiency of the paint is 80 ~ 85%, and the treatment efficiency is low. As the resin product melts, the water support fee is lost, the medicine becomes turbid, and the residue remains. It is inefficient because it requires washing and post-treatment. In particular, not only the harmfulness of chemicals, but also serious water quality (air) pollution, as well as serious environmental pollution problems such as a large amount of wastewater and harmful substances are generated. In addition, the latter mechanical treatment method (device) will be described in detail with reference to the following prior arts.

As a prior art (patent document) related to the paint peeling device of the above-mentioned coating resin product, water is applied to the surface of the coating resin product (bumper) as in Korean Patent Application Publication No. 1999-0074662 (published on October 05, 1999). There is a coating film removal system of the coating resin product to peel the paint by spraying with high pressure. Or, as in Korean Patent Application Publication No. 1996-0037240 (published on November 19, 1996), a resin material rolled between a pair of rolls passes through, and the coating film of the coating resin product that separates the coating film by the rolling force of the roll. There is a peeling and removing device. However, since the prior arts remove the paint by spraying water at a high pressure on the surface of the bumper or passing through the rolls, the device becomes relatively large and the configuration is complicated according to the volume (size, area) of the bumper. Of course, there is an uneconomical problem due to the high production cost and price.

Alternatively, the paint removal device for a vehicle bumper of Korean Patent Application Publication No. 10-2013-0040786 (published on April 24, 2013) includes a pair of rolls rolling a bumper and a surface of the bumper discharged from the roll. A short blasting device or the like that removes the residual paint. However, it is complicated, complicated, and requires a lot of manufacturing cost, and the amount of vibration, noise, dust, etc. is high, so the working environment is bad, and the physical health of workers is adversely affected, and equipment operation and maintenance costs such as shot blasting equipment are excessive. It has inefficient problems such as the need to do so.

Alternatively, there is a 'Painting and Peeling Device for Waste' in Korean Registered Patent Publication No. 1662767 (Registration Date: September 28, 2016), which is located inside the main body of the conical stator and the lower side of the stator. The blade of the installed conical rotor is configured to peel paint on the waste surface while rotating at high speed. However, the vertical paint peeling device as described above has a problem in that the paint removal efficiency is poor because the waste introduced into the upper hopper falls down through the rotor in a state where the paint is not completely removed.

Domestic Patent Publication No. 1999-0074662 (October 5, 1999, published) Domestic Patent Publication No. 1996-0037240 (November 19, 1996, published) Domestic Patent Publication No. 10-2013-0040786 (2013.04.24., Published) Domestic registered patent publication No. 1662767 (2016.09.28., Registered)

The object of the present invention is to crush the paint resin products of the above with a crusher and preheat the waste paint resin chips provided in the form of chips to a certain temperature, so that the blades are different and paint in a short time by the impact force of the high-speed rotating shaft. It is to provide a paint peeling device of a recycled waste paint resin chip that can be peeled off, and thus can be surface-treated with recycled resin products.

In order to achieve the above object, the present invention is installed in the longitudinal direction before and after, the paint resin chip is introduced into the rear entrance and the paint generated in the process of surface-treating the paint resin chip is exposed through a plurality of holes formed on the surface. The drum is discharged to, and the surface-treated resin chip is discharged to the front outlet; The drum is installed to be rotatable at both sides in a state of being inserted through the central portion of the drum in a high speed, and a screw formed at the rear is provided inside the inlet to transport the coating resin chip to the front and forms a plurality of blades on the circumferential surface to form the coating resin. A shaft that separates the paint of the chip; A drive motor for rotating through a power transmission means coupled to the front end of the shaft; A heater for supplying heat through a preheating tube connected to the inlet of the drum to maintain an internal temperature within a range of 25-50 degrees C; A housing provided with a paint recovery port for recovering paint at the bottom of the drum by wrapping the periphery of the drum to block external leakage of the paint; And a blower through which an air chamber formed inside the shaft is opened into the drum through a hole in the surface and injects air into the air chamber through an air tube coupled to a rear end of the shaft. A circumference of 12) is a paint peeling device for recycled waste paint resin chips, characterized in that burrs (12a) are formed in the direction toward the shaft (20).

In addition, the shaft, the first peeling portion to form a predetermined number of blades at equal intervals in front of the screw to first peel the paint on the surface of the coating resin chip; And a second peeling unit for forming a larger number of blades than the first peeling unit at equal intervals in front of the first peeling unit to further peel off the paint remaining on the surface of the coating resin chip in more detail. It is characterized by.

In addition, the shaft is characterized in that it is configured to have a transfer blade in the middle of the circumferential surface to prevent congestion of the coating resin chip.

In addition, a chip outlet for guiding a resin chip is provided at the outlet of the drum, and a guide ring is provided inside the chip outlet so that the outlet is narrowed toward the outside.

The present invention has an effect that the paint on the surface can be peeled off in a short time through a simple surface treatment process by crushing the above-mentioned coating resin product and inputting the waste coating resin chip provided in the form of a chip into a hopper. In addition, the simple configuration of the device is easy to manufacture, easy to operate by anyone, and easy to maintain and operate, and does not require a separate maintenance cost, which provides a very economical effect.

In the present invention, the coating resin chip in the hopper is injected in a certain amount through a quantitative feeder and is uniformly transported by a screw on the inlet side, and is injected into the drum to supply smoothly. In addition, there is an effect that the surface of the chip is evenly peeled off by a shaft and blade rotating at high speed inside the drum to clean the surface. In addition, since the chip outlet provided on the outlet side of the drum controls the discharge amount of the resin chip, it is possible to sufficiently peel off the paint remaining on the surface of the resin chip in the drum, and the surface treatment efficiency is further improved. .

The present invention has an effect of providing an optimal temperature condition most suitable for peeling paint on the surface of a coating resin chip by a preheating tube connected to an inlet and a preheating means and maximizing peeling efficiency.

According to the present invention, the paint of the paint resin chip is completely removed by the first peeling portion and the second peeling portion provided on the shaft, so that the surface treatment can be performed. In addition, the transfer blade provided in the middle of the shaft facilitates the transfer of chips to prevent stagnation inside the drum. In addition, there is an effect of preventing the resin chip from melting or clumping due to overheating in the drum and improving the surface treatment efficiency.

The present invention has excellent surface treatment efficiency of the waste paint resin chip, which is difficult to process, such as a bumper cover for automobiles or various plastic and resin products coated with paint, thereby maximizing the recycling efficiency of waste materials, and through high-quality recycled resin chips. There is an economic effect that can create added value.

1 is a view showing the paint peeling device of the recycled waste paint resin chip according to a preferred embodiment of the present invention as an internal cross-section.
Figure 2 is a side view showing a cross section of "A"-"A" in Figure 1 above.
Figure 3 is a side view showing a cross-section "B"-"B" of Figure 1 above.
Figure 4 is a side view of the "C"-"C" line cross-section of Figure 1 above.
5 is an enlarged view of the outlet and the chip outlet of the paint peeling apparatus according to the present invention.

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

The paint peeling device of the recycled waste paint resin chip of the present invention according to the drawings is installed in the longitudinal direction before and after, and the paint resin chip (R) is introduced into the rear inlet (14) and surface treatment of the paint resin chip (R) The drum (P) generated during the process is discharged to the outside through a plurality of holes (12) formed on the surface, and the surface treated resin chip (R ') is discharged to the front outlet (15) of the drum (10) ); The drum 10 is installed to be rotatable at both sides at a high speed in the axial center of the drum 10, and a screw 22 formed on the rear side is provided inside the inlet 14 to transfer the coating resin chip R to the front. And the circumferential surface to form a plurality of blades 30 to separate the paint (P) of the paint resin chip (R) shaft 20; A drive motor (36) for rotating through a power transmission means coupled to the front end of the shaft (20); A heater 40 for supplying heat through a preheating tube 42 connected to the inlet 14 of the drum 10 to maintain an internal temperature within a range of 25-50 degrees C; A housing 50 provided with a paint recovery port 54 for recovering paint P at the bottom of the drum 10 by surrounding the periphery of the drum 10 to block external leakage of the paint P; And, the air chamber 26 formed in the interior of the shaft 20 is opened into the drum 10 through the through-hole 28 of the surface and the air tube 62 coupled to the rear end of the shaft 20 It includes; a blower 60 to inject air into the air chamber 26 through.

The above is explained in more detail as follows.

First, the paint peeling device of the recycled waste paint resin chip according to the present invention is composed of a drum 10, a shaft 20, a driving motor 36, a heater 40, a housing 50, and a blower 60 The paint is removed by surface treatment of the waste paint resin chip R on which the paint is applied to the surface. The waste paint resin chip (R) is applicable to recycled wastes such as bumper covers of automobiles, various plastics and resin products coated with paint, and is collected and shredded with a grinder to break it down to a size of about 10 to 100 mm. It means that it has the form of a chip.

The drum 10 is cylindrical and has a plurality of holes 12 formed on its surface, installed long in the longitudinal direction before and after, and the shaft 20 is inserted inside, and a hopper 18 is provided on the inlet 14 provided at the rear. ) Is installed and the outlet 15 is provided in the front of the other side. When the coating resin chip (R) is introduced into the hopper 18, the surface of the drum 10 is treated and the paint (P) is separated, and the paint (P) generated in this process is discharged out through the hole (12). do. And the surface-treated resin chip (R ') is discharged to the front exit 15 and placed in the collection box 58.

On the other hand, when the burr 12a is formed in the direction toward the shaft 20 around the hole 12, the waste paint resin chip R rubs against the bur 12a, so that the waste paint resin chip R The applied paint is removed more effectively.

The present invention is characterized in that the inlet 14 is provided with a quantitative feeder (16). The fixed quantity feeder 16 injects a large amount of the coating resin chip R contained in the hopper into the inlet 14 by a predetermined amount to prevent overload and prevent the clogging of the inlet, thereby stabilizing the surface treatment process.

The shaft 20 is formed with a screw 22 on the inlet side of the rear, a plurality of blades 30 are formed on the surface, and is inserted through the axial direction in the center of the drum 10 and coupled to the front and rear ends It is installed so as to be capable of high-speed rotation by the rotating support means. The shaft 20 has an air chamber 26 formed therein and is opened to the rear side through the air passage 24 of the rear inlet 21, which will be described below. The shaft 20, the paint resin chip (R) along the screw (22) is smoothly transferred to the drum inside and the blade (30) rotating at a high speed strongly strikes the paint resin chip (R) to paint the surface (P) Forced separation. The rotation support means is preferably a bearing, a retainer, etc. to minimize the rotational friction force of the shaft.

According to the present invention, the shaft 20 is formed by forming a certain number of blades 30 at equal intervals in front of the screw 22 to primarily paint (P) the surface of the paint resin chip (R). A first peeling portion 20a to be peeled off; And, paint (P) remaining on the surface of the coating resin chip (R) by forming a larger number of blades 30 than the first peeling portion (20a) at equal intervals in front of the first peeling portion (20a) It characterized in that it consists of; second peeling portion (20b) for secondary peeling in more detail. In other words, the coating resin chip R is first separated on the shaft 20 by the first peeling portion 20a provided on the inlet side, and peeled again by the front second peeling portion 20b to remove paint efficiency. This is very excellent.

A plurality of blades 30 are radially attached to the central portion of the shaft to the first peeling portion 20a and the second peeling portion 20b to strike the coating resin chip R. Preferably, four blades 30 are attached to the first peeling portion 20a, as shown in FIG. 2, and are provided with at least 2 to 6 blades. And the second peeling portion 20b, as shown in Figure 4, the blade 30 is provided with eight, the number of contact with the coating resin chip (R) and the contact area is relatively increased and the paint is more detailed It can be peeled off. The second peeling portion 20b is provided with at least 7 to 12 pieces, and it is obvious that it can be composed of 12 or more according to the type of the chip to be processed, the processing capacity of the device, and the like.

The present invention, the shaft 20 is provided with a transfer blade 32 in the middle of the circumferential surface is characterized in that it is configured to prevent congestion of the coating resin chip (R). That is, the transfer blade 32 is provided between the first peeling portion 20a and the second peeling portion 20b, so that the movement of the coating resin chip R surface-treated inside the drum becomes smooth and stagnant. To prevent the risk of overload and to further improve the processing efficiency.

The transfer blade 32 is formed to extend on the road in the axial direction, and at least one or a plurality of blades are provided at equal intervals, and as shown in FIG. 3, two are radially arranged toward the center of the shaft. The transfer blade 32 is formed to be inclined at an angle at an angle of about 3 to 30 degrees from the axial center line, as shown in the drawing, to smoothly transfer the resin chip to the front.

Next, the drive motor 36 is provided in the front drive unit 23 of the shaft 20 and rotates the shaft at a high speed through a predetermined power transmission means, and an electric motor is preferable. The power transmission means is composed of a belt and a pulley, a chain and a sprocket, a gear and a transmission, etc., preferably a drive wheel 34 coupled to the end of the shaft and a belt driving method in which rotational force is transmitted through the belt is suitable. . In addition, the shaft 20 has a balance wheel 38 coupled to the front driving part 23 to increase the axial rotational force, and exhibits a strong driving force even when an overload occurs in the drum, so that the shaft is smoothly rotated and surface treatment is performed. It is done stably.

The heater 40 is for increasing the temperature of the coating resin chip (R) by supplying hot air, an electric heater is preferable, and is connected to the inlet 14 of the drum 10 through the preheating tube 42 , Maintain the internal temperature of the inlet within 25 ~ 50 degrees C. That is, the paint (P) on the surface is easily peeled off by preheating the coating resin chip (R) injected into the inlet and raising the temperature within the range of 25 to 50 degrees C. At this time, when the temperature is higher than 50 ° C, the strength of the resin chip is lowered, and it is not good because there is a risk of falling back and lumping.

The housing 50 wraps around the periphery of the drum 10 and accommodates therein, and a support 19 is installed at regular intervals, and blocks the paint P discharged from the drum 10 from leaking outside. . The paint (P) is collected in the paint recovery port (54) at the lower end through the cone portion (52) formed at the bottom and is sent to the dust collector (56) through the recovery port (54). In the dust collector 56, paint (P) and dust are separated, and can be safely disposed of in a packaging container (vinyl, bag, etc.).

The blower 60 injects air into the drum 10 to forcibly discharge the paint P and lowers the temperature inside to prevent the resin chip from melting due to overheating. The blower 60 is connected to the rear end of the shaft 20 through the air tube 62 and injects air into the air passage 24, so that the drum 10 through the air chamber 26 and the through hole 28 Air is injected inside. The end of the shaft 20 is provided with an air joint 64 to which the air tube 62 is connected to be configured to supply air to the shaft that is axially rotated.

In the present invention, the chip outlet (70) for guiding the resin chip (R ') to the outlet (15) of the drum (10) is provided, and the inside of the chip outlet (70) is provided with a guide ring (72) The outlet 15 is characterized in that it is configured to be narrower toward the outside. In other words, the chip outlet 70 is coupled to the front side of the drum 10 and connected to the outlet 15, and as shown in FIG. 5, the diameter gradually decreases toward the outside. In addition, the guide ring 72 is interlocked with the drive portion 23 in front of the shaft inward, and the diameter is expanded toward the outside, and the outlet 15 between the chip outlet 70 and the guide ring 72 A narrower chip discharge passage H is formed. That is, it prevents the resin chip (R ') being surface-treated in the drum from scattering as described above, and also prevents the paint chip from being discharged in the remaining state by prolonging the residence time in the drum. Since the surface can be completely treated, the processing efficiency is further improved.

The present invention is characterized in that it is configured to include; a cooler (66) for supplying cold air at a low temperature through the air tube (62). In the process of surface-treating the coating resin chip inside the drum 10, a lot of heat is generated while the blade 30 and the chip rotating at high speed are shocked, and the air supplied to the air chamber 26 generates heat. It acts to lower. However, when the processing capacity is excessive or overheating occurs in the inside, the cold air generated from the cooler 66 is supplied to the air tube 62 to lower the temperature inside the drum and to be quickly and accurately controlled. In addition, it is configured to include a temperature sensor (not shown) and a pressure sensor (not shown) for sensing the temperature inside the drum.

In addition, the present invention, the surface treatment is completed, the resin chip (R '), the surface treatment is completed, the resin chip (R') and a blender 81 for blending a synthetic resin of a different material; An extruder (82) that receives the compounded material from the blender (81) and extrudes it into a plate shape; And, receiving the material extruded from the extruder 82, the pulverizer 83 for crushing; may further include.

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10: drum, 12: hole, 12a: burr, 14: inlet, 15: outlet, 16: metering feeder, 18: hopper, 19: support, 20: shaft, 20a: the first peeling portion, 20b: the second peeling portion , 21: inlet, 22: screw, 23: drive, 24: air passage, 26: air chamber, 28: through, 30: blade, 32: transfer blade, 34: drive wheel, 36: drive motor, 38: balance Wheel, 40: Heater, 42: Preheating tube, 50: Housing, 52: Cone part, 54: Paint outlet, 56: Dust collector, 58: Collection box, 60: Blower, 62: Air tube, 64: Air joint, 70: Chip Outlet, 72: guide ring, 81: blender, 82: extruder, 83: grinder, H: chip discharge passage

Claims (7)

In the paint peeling device of the recycled waste paint resin chip,
It is installed in the longitudinal direction before and after, and the coating resin chip (R) is introduced into the rear inlet (14), and a plurality of holes formed in the surface of the paint (P) generated during the surface treatment of the coating resin chip (R) ( The drum 10 is discharged to the outside through 12), and the surface-treated resin chip R 'is discharged to the front outlet 15;
The drum 10 is installed to be capable of high-speed rotation on both sides while being inserted through the central portion of the axial direction, and a screw 22 formed on the rear side is provided inside the inlet 14 to transfer the coating resin chip R forward. And the circumferential surface to form a plurality of blades 30 to separate the paint (P) of the paint resin chip (R) shaft 20;
A drive motor (36) for rotating through a power transmission means coupled to the front end of the shaft (20);
A heater 40 for supplying heat through a preheating tube 42 connected to the inlet 14 of the drum 10 to maintain an internal temperature within a range of 25-50 degrees C;
A housing 50 having a paint recovery port 54 for recovering paint (P) at the bottom of the drum (10) by surrounding the periphery of the paint (P) to block the outflow of the paint (P); And,
The air chamber 26 formed inside the shaft 20 is opened into the drum 10 through the through hole 28 of the surface and air is passed through the air tube 62 coupled to the rear end of the shaft 20 Includes; a blower 60 to inject air into the chamber 24,
A circumference of the hole (12) is characterized in that the burr (12a) is formed in the direction toward the shaft 20, the paint peeling device of the recycled waste paint resin chip.
According to claim 1,
Characterized in that the inlet 14 is provided with a quantitative feeder 16, the paint peeling device of the recycled waste paint resin chip.
According to claim 1,
The shaft 20,
A first peeling part 20a for forming a certain number of blades 30 in front of the screw 22 at equal intervals to first peel the paint P on the surface of the paint resin chip R; And,
On the front of the first peeling portion 20a, a larger number of blades 30 than the first peeling portion 20a are formed at equal intervals, so that the paint P remaining on the surface of the coating resin chip R is removed. Characterized in that consisting of; a second peeling unit (20b) for secondary peeling in more detail, characterized in that the recycled paint peeling device of the waste paint resin chip.
According to claim 1,
The shaft 20 is provided with a transfer blade 32 in the middle of the circumferential surface, characterized in that it is configured to prevent congestion of the coating resin chip (R), paint peeling device of the recycled waste paint resin chip .
According to claim 1,
A chip outlet 70 for guiding the resin chip R 'is provided at the outlet 15 of the drum 10, and a guide ring 72 is provided inside the chip outlet 70 to provide an outlet 15. ) Is characterized in that it is configured to be narrower toward the outside, the paint peeling device of the recycled waste paint resin chip.
According to claim 1,
Further comprising, a cooler (66) for supplying cold air at a low temperature through the air tube body (62); further comprising, a paint peeling device for recycled waste paint resin chips.
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