KR100654064B1 - Method for manufacturing boundary stone using waste resin and boundary stone manufactured by the same - Google Patents

Abstract

A method of manufacturing a road boundary stone using waste resin and the road boundary stone manufactured by the same are provided to increase the maintenance convenience by using the waste resin and improve the productivity by mounting the night recognition body. A method of manufacturing a road boundary stone using waste resin comprises a waste resin melting process of melting the waste resin by heating and pressing; a night recognition body installation process of temporarily installing a noctilucence or recurrent reflection-type night recognition body(20) at an inner wall of a second mold(110) of a first mold(120) formed as a floor surface of a boundary stone(10) and the second mold combined at the first mold formed as upper and side parts of the boundary stone; and a press molding process of injecting a melted waste resin(10') between the first and second molds, pressing the both molds, and molding the recognition body to be exposed on the outer surface as an integrally combined boundary stone.

Description

Road boundary stone manufacturing method using waste resin and road boundary stone manufactured thereby {METHOD FOR MANUFACTURING BOUNDARY STONE USING WASTE RESIN AND BOUNDARY STONE MANUFACTURED BY THE SAME}

1 is a process flow diagram showing an embodiment of the road boundary stone manufacturing method using waste resin according to the present invention.

Figure 2 is a process diagram showing a night-time identifier construction process and press molding process in the manufacturing method of the present invention.

Figure 3 is a process state showing the waste resin pressure treatment process in the production method of the present invention.

Figure 4 is a top perspective view showing an embodiment of the road boundary stone manufactured by the manufacturing method of the present invention.

FIG. 5 is a bottom perspective view of the road boundary stone shown in FIG. 4; FIG.

Figure 6a and Figure 6b is a process state diagram showing another embodiment of the night identification body construction process in the road boundary stone manufacturing method according to the present invention.

Figure 7 is a bottom perspective view showing another embodiment of the road boundary stone manufactured by the manufacturing method of the present invention.

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

10: boundary stone 10 ': wastewater support fee

11: engaging projection 13: engaging groove

16: bulkhead 17: fixing groove

20: night identification 30: double-sided tape

110: second mold 115: seating groove

116: engaging jaw 120: the first mold

The present invention relates to a method of manufacturing road boundary stones using waste resins and road boundary stones manufactured by the same, and more specifically, to reduce resources and environmental protection through recycling of waste resins, as well as combining nighttime identifiers with boundary stones. The present invention relates to a road boundary stone manufacturing method using waste resin, which does not require a separate process for improving productivity and to reduce costs, and a road boundary stone which is easy to install through a lightweight prefabricated coupling structure.

Road boundary stones are road facilities installed along the edges of roads and flower beds to form a boundary with the roadway. In the past, it was common to manufacture concrete by pouring concrete into a mold of a certain type. It was also manufactured by processing stones such as marble or marble.

Of these conventional road boundary stones, road boundary stones made of stone have an advantage of having a beautiful appearance, but are too heavy to be very inconvenient to install, and have a high material cost and processing cost, and thus are not used universally. In this case, the manufacturing cost is relatively inexpensive, so it is widely used. However, this is the same as the installation work is inconvenient due to the excessive weight, and it takes a lot of time and a large place for curing the concrete poured in the mold during the manufacturing process. There was a problem of low productivity and inefficient in terms of cost.

Moreover, these stone or concrete road boundary stones are brittle due to brittle material properties, which are easily cracked or cracked by external impacts such as vehicle collisions, and sometimes cracked due to freezing of moisture absorbed inside. There was a problem that the durability is poor, such as being corroded by chemicals such as calcium chloride sprayed on the road.

In addition, for night traffic safety, a luminous or retroreflector (hereinafter referred to as 'night identification') is installed in the road boundary so that the driver can easily identify the presence and location of the road boundary at night. Increasingly, in the related art, a separate process for additionally installing a nighttime identifier in the manufactured boundary stone requires a disadvantage in terms of productivity and cost. In particular, when the night identifier is bonded to the surface of the boundary stone using an adhesive or the like, the fixing force is weak and the boundary stone protrudes to the outside, so that the night identifier can be easily applied even when the vehicle is in contact with a small force due to human contact. To be separated, in order to avoid the grooves on the surface of the boundary stone to insert the nighttime identification, there was a problem that takes a lot of time and money in the work.

On the other hand, as the use of synthetic resin products increases, the disposal of waste resins that are thrown away becomes an increasingly important problem. Accordingly, there are proposed ways to recycle the waste resin in various ways, and in reality, a large amount of waste resin is not properly recycled because it is expensive to collect, sort, and wash the waste resin. Therefore, there is a need for a realistic way to recycle and use waste resin through a simpler pretreatment process.

The present invention is to solve the problems as described above, the object of the present invention is to improve the usability of the waste resin by using the waste resin in the manufacture of the boundary stone, so that it is not necessary to attach a separate night identification on the surface of the boundary stone It is to provide a road boundary stone manufacturing method that can increase productivity and reduce costs.

Another object of the present invention is to provide a road boundary stone is manufactured by the above-described manufacturing method, consisting of a prefabricated structure that is light in weight and connected in series through the fitting coupling.

According to the present invention for achieving the above object, a waste resin melting step of melting by heating and pressing the waste resin; Nighttime to install a luminous or retroreflective night identifier on the inner wall of the second mold among the first mold forming the bottom face of the boundary stone and the second mold coupled to the first mold to form the upper and side portions of the boundary stone. Identification process; And a press forming step of inserting the molten waste resin between the first mold and the second mold and pressing both molds to form a boundary stone integrally coupled to expose the nighttime identifier to the outer surface. A manufacturing method is provided.

In the road boundary stone manufacturing method of the present invention, the night identification body construction process may be made by attaching the night identification body to the inner wall surface of the second mold in a bonding method using an adhesive or double-sided tape.

In some cases, the night identification body construction process forms a locking jaw supporting the night identification body in at least one direction on the inner wall surface of the second mold such that the night identification body is maintained by the locking jaw when the waste resin enters. It may be made of.

In addition, the waste resin melt processing in the waste resin processing process in the form of a solid having fluidity at room temperature and pressurized while passing through a plurality of rollers installed in parallel to remove the bubbles and to further increase the miscibility of the material desirable.

More preferably, in the waste resin melting process, a filler made of calcium carbonate, sand, polymethylmethacrylate (PMMA) or a mixture thereof is mixed at a weight ratio of 10 to 30 with respect to the weight ratio 100 of the waste resin.

On the other hand, the road boundary stone according to the present invention is manufactured by the road boundary stone manufacturing method using the waste resin as described above, the night identification body 20 is installed on at least one surface, and installed so as to combine a plurality of boundary stones in series with each other It has a structure in which coupling protrusions and coupling grooves are formed at both sides in the direction.

The road boundary stone of the present invention may have a structure that is lightened by forming a downwardly open space and a partition partitioning the space into a plurality of partitions.

In addition, the fixing groove for maintaining the installation position is preferably formed on the bottom surface of the boundary stone.

The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a process flow diagram showing an embodiment of the road boundary stone manufacturing method using waste resin according to the present invention.

As shown in FIG. 1, the present invention is a material mixing step (P1) of mixing a filler and an additive in waste resin as a raw material, a primary melting step (P2) of melting the mixed material, and mixing a pigment into a melted material. Pigment mixing step (P3), the secondary melting step (P4) to melt the material again, the night identifier construction step (P5) to install a night identifier consisting of a reflector or a luminous body in the mold, and the inside of the mold The road boundary stone is manufactured by the press molding process (P6) in which the waste resin is added and molded. The top and bottom perspective views of the road boundary stone manufactured thereby are shown in FIGS. 4 and 5, respectively.

Filler introduced in the material mixing step (P1) is to reinforce the strength of the boundary stone, secure dimensional stability and appropriate weight increase, any one of a mixture of calcium carbonate, sand, calcium carbonate and polymethylmethacrylate (PMMA), or It may be made of a combination thereof, it is preferable to mix the filler in a weight ratio of 10 to 30 with respect to the weight ratio 100 of the waste resin. When the filler is mixed in a small amount of 10 or less by weight ratio, the effect of the filler is not properly exhibited, and when a large amount is mixed by more than 30 by weight, the material properties of the material are inferior.

The additive includes a heat stabilizer such as stearic acid to prevent decomposition or alteration by heat and an ultraviolet absorber such as salicylic acid ether to prevent degradation by photodegradation by ultraviolet light. Since most of these additives are already included in the waste resin as the main material, a sufficient effect can be obtained even if a small amount of 0.5 to 1% of the total mixture is added.

On the other hand, although not shown, it is preferable that the waste resin is sorted and crushed before the mixing process. That is, it is preferable to remove the foreign substances such as wood or metal contained in the waste resin to crush the selected waste resin to a uniform size with a crusher to increase the meltability and formability.

The mixed wastewater support material is processed so that the mixed materials are uniformly mixed while melting through the primary melting process (P2). The melting apparatus used for this may be made of a conventional synthetic resin melting apparatus that melts by applying heat by a heater while rotating the screw to pressurize and transfer the resin. Preferably, the melter improves the kneading performance so that the raw material can be melted evenly and has a low calorific value. It is preferable to have a bi-directional biaxial screw to enable the molding, and to control the temperature of the heater for each zone so as to gradually generate a high heat generation temperature along the feed direction of the raw material. For example, the screw is divided into a supply part, a compression part, a mixing part, and a metering part for each predetermined section so as to have different spiral shapes, and the supply part is heated to a temperature of about 100 ° C. to remove moisture of the raw material, and the compression is performed. The temperature is gradually increased to 150 to 200 ℃ in the mixing section, and 200 to 250 ℃ in the mixing section and the metering section to prevent the raw material is carbonized due to excessive heat supply.

The pigment mixing process (P3) is optional, if there is a color required for the boundary stone, the appropriate amount of the pigment is mixed with the primary melted raw material to achieve the color development. This pigment has a heat resistance to a temperature of approximately 300 ℃ or more, using an organic pigment that does not cause decolorization in the QUV test 500 hours, the mixing ratio of 10 to 100 weight ratio of the resin or the raw material mixed with the resin and filler. It is preferable to set it as about 15 weight ratio.

The material in which the pigment is mixed is subjected to the secondary melting step (P4) to uniformly color the pigment. This secondary melting process (P4) can be made in the same manner as the above-described primary melting process (P2), a detailed description thereof will be omitted.

The raw material melted through the primary melting process (P2) or the secondary melting process (P4) is put into a mold and press-molded in the form of the boundary stone 10 shown in FIGS. 4 and 5, and press forming as described above. Before this is done, the nighttime identification body 20 is temporarily installed in the mold. This night-time identification body temporary process P5 and the press molding process P6 are shown in more detail in FIG.

Referring to FIG. 2, the mold for press molding is coupled to the first mold 120 and the first mold 120 to form the bottom surface of the boundary stone 10, and the upper and side portions of the boundary stone 10 are formed. It consists of a second mold 110 to be formed, of which the temporary identifier 20 is temporarily bonded to the inner wall surface of the second mold 110 using an adhesive or a double-sided tape (30) (FIG. 2) (a)).

As described above, the molten waste resin is pressed into the molds 110 and 120 on which the night identification body 20 is hypothetically press-molded. In some cases, molding is performed by injecting the molten material into the closed mold. Although it may be made, in this case, since the night identifier 20 hypothesized by the melt injected may be released from the home position, in this embodiment, the waste resin is made into a solid form having fluidity at room temperature. After placing the quantitative waste resin mass 10 'on top of the first mold 120 (FIG. 2 (b)), the first mold 120 is moved upwardly to be combined with the first mold 120. , The waste resin mass 10 'is first contacted with the inner upper surface of the second mold 110 to be compression-molded ((c) and (d) of FIG. 2) to be installed on the inner side surface of the second mold 110. Illustrated that the night identification 20 is not out of position.

On the other hand, in the case where the waste resin melt is formed into a fluid solid state, the waste resin mass 10 'is passed between two or more rollers 50 closely installed in parallel as shown in FIG. It is desirable to pressurize to remove bubbles and increase the miscibility of the material.

After press molding is performed for a predetermined time as described above, demoulding is performed as shown in FIG. 2 (e), and at this time, the boundary stone in which the nighttime identification body 20 that was installed inside the second mold 110 is molded. It is embedded in the side part of (10), and is integrated. As such, the formation of the boundary stone 10 and the mounting of the nighttime identifier 20 are performed at the same time, so that a separate process for mounting the nighttime identifier in the boundarystone is not required as in the prior art, thus preparing the boundarystone with nighttime identifier. In this way, productivity increases and production costs can be reduced. In addition, since the nighttime identification body 20 is embedded in the boundary seat, damage due to contact of surrounding moving objects such as a vehicle or a person can be significantly reduced.

4 and 5 are top and bottom perspective views showing one embodiment of the road boundary stone manufactured by the above-described manufacturing method of the present invention.

As shown in Figure 4 and 5, the road boundary stone according to the present invention is a plurality of night identification body 20 is installed at predetermined intervals along the longitudinal direction in the upper side portion, the reinforcement wings 12 along the lower end of both sides Is formed, the coupling protrusion 11 and the coupling groove 13 of the form corresponding to each other in the longitudinal both sides are provided so that the plurality of boundary stones 10 can be coupled in series with each other. In addition, a space 15 downwardly opened to reduce weight and a partition 16 partitioning the space 15 into a plurality of spaces are formed therein, and a plurality of fixing grooves 17 are provided on the bottom surface thereof to maintain the installation position. ) Has a formed structure.

The road boundary stone manufactured by the present invention as described above not only has the advantages of the manufacturing process as described above, but also because of the characteristics of the material itself, and also because the interior has an empty partition structure as described above, the existing boundary stone Compared to the weight can be very light. In addition, through the coupling protrusion 11 and the coupling groove 13 by connecting each of the boundary stones in a prefabricated and integrated, and also having a light weight by securing a stable fixing force to the floor through the fixing groove 17 installed It is possible to prevent the state from easily deforming. Therefore, the road boundary stone of the present invention is very easy to install and maintain.

Meanwhile, in the above-described embodiment, the temporary identification unit 20 is temporarily installed in such a manner as to be bonded by using an adhesive or a double-sided tape 30. However, as illustrated in FIG. The provided mounting groove 115 may be formed on the inner wall surface of the second mold 110 so that the night identification body 20 may be inserted and fixed inside the mounting groove 115. In this case, the catching jaw 116 may be selected in an appropriate form and position so that the night identification body 20 is not pushed out by the wastewater support fee entering.

In addition, as shown in FIG. 6B, the night identification unit 20 may be temporarily installed by combining a bonding method and a fitting method. That is, the night identification body 20 is temporarily installed on the inner wall surface of the second mold 110 using the double-sided tape 30 or the adhesive, and the locking jaw 116 is formed along the upper portion of the second mold 110. (Unlike FIG. 6A, the seating groove 115 is not formed.) It may be to reinforce the bearing force against the upward force.

In addition, when a heavier road boundary stone is required in some cases, the upper mold surface of the first mold 120 is molded into a flat shape, or the weight body first molded into a predetermined shape on the upper surface of the first mold 120. It is also possible to form the boundary stone 10 filled with the interior as shown in Figure 6 by placing and press molding.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

As described above, according to the present invention, by manufacturing the road boundary stone using waste resin, while improving the usability of the waste resin, while reducing the weight of the boundary stone, it is possible to increase the ease of installation and maintenance, night identification in the process of forming the boundary stone The installation of the at the same time has the effect of increasing productivity and reducing costs in the manufacture of road boundary stone equipped with night identification.

In addition, the road boundary stone can be easily selected and manufactured by a lightweight structure having a hollow interior or a weighted structure filled with the interior, so that the road boundary stone can be provided with various characteristics as required, and a prefabricated coupling structure provides convenience of installation and maintenance. Further improved, it is possible to provide a road boundary stone that can be light and yet firmly installed.

Claims (8)

Waste resin melting step of melting waste resin by heating and pressing; The second mold 110 of the first mold 120 forming the bottom surface of the boundary stone 10 and the second mold 110 coupled to the first mold 120 to form the upper and side portions of the boundary stone 10. Night identifier construction step of temporarily installing a luminous or retroreflective night identifier 20 on the inner wall surface; And The molten waste resin 10 'is injected between the first mold 120 and the second mold 110 and presses both molds 110 and 120 so that the night identification body 20 is exposed to the outer surface. Road boundary stone manufacturing method using the waste resin, including the press-molding process to form into a boundary stone 10 coupled to the. The method of claim 1, The night identification body construction process is the road boundary stone manufacturing method using the waste resin, characterized in that the temporary attachment to the inner wall surface of the second mold (110) by a bonding method using an adhesive or double-sided tape. The method of claim 1, The night identification body construction process is formed on the inner wall surface of the second mold (110) at least in one direction to form a locking jaw 116 for supporting the night identification body (20) by entering the waste resin 10 ' 116) so that the night-time identification body 20 to maintain the position so that the boundary stone manufacturing method using waste resin. The method according to any one of claims 1 to 3, The road boundary stone further comprises a pressurizing process for processing the waste resin melted in the waste resin melting process at room temperature into a solid form having fluidity and passing it through a plurality of rollers installed in parallel to remove bubbles and increase the miscibility of materials. Manufacturing method. The method according to any one of claims 1 to 3, The method of manufacturing a road boundary stone, characterized in that the filler consisting of any one or a mixture of calcium carbonate, sand, PMMA (Polymethylmethacrylate) or a mixture thereof with respect to the weight ratio 100 of the waste resin in the waste resin melting process. It is manufactured by the road boundary stone manufacturing method using the waste resin of any one of claims 1 to 3, the night identifier 20 is installed on at least one surface, so that the plurality of boundary stones 10 can be coupled in series with each other. Road boundary stone is formed on both sides in the longitudinal direction of the engaging projection 11 and the coupling groove (13). The method of claim 6, The road boundary stone is characterized in that the space (15) opened downward in the boundary stone (10) and the partition wall (16) partitioning the space (15) is formed and reduced in weight. The method of claim 6, Road boundary stone using waste resin, characterized in that the fixing groove 17 for maintaining the installation position on the bottom surface of the boundary stone 10 is formed.

Images