Scrap metal recycling apparatus

Abstract

The present invention relates to a scrap metal recycling device comprising: a housing having a plurality of legs, with the upper and lower ends open and the sides closed; a two-axis crusher installed on the upper inner side of the housing and crushing scrap metal fed from the upper side; and an intermediate material forming machine installed on the lower inner side of the housing and forming the crushed scrap metal discharged from the two-axis crusher into a ball-shaped intermediate material. Therefore, by enabling the immediate crushing and molding of scrap metal at generation and collection sites, such as apartments and commercial buildings, into intermediate materials of approximately the same size and shape, the handling and transportation of scrap metal can be facilitated and the recycling rate can be improved.

Description

Technology Field

[0001] The present invention relates to a scrap metal recycling device, and more specifically, to a scrap metal recycling device capable of crushing scrap metal on a relatively small scale and forming it into an intermediate material in the shape of a ball. Background Technology

[0003] Scrap metal is a recyclable material remaining from the manufacture and consumption of products, such as vehicle parts, building parts, and surplus materials, and is a resource with monetary value unlike waste.

[0004] Furthermore, in a broad sense, scrap metal includes various recyclable metal components such as aluminum and copper, in addition to iron.

[0005] Generally, at industrial sites, scrap metal is collected, sorted (removal of foreign substances and materials with a high degree of oxidation), first compressed, crushed, and second compressed to form intermediate materials that are easy to feed into a melting furnace.

[0006] Since the scrap metal handled in these operations is often large, large-scale equipment such as excavators equipped with large grapples and large press units is used.

[0007] Meanwhile, scrap metal is also generated in large quantities as a result of people's daily consumption, examples of which include bowls, containers, cases, shelves, and cooking utensils made of various metal materials.

[0008] However, due to the small size of this household scrap, it does not combine smoothly into a single intermediate material (in the form of large blocks) when mixed and compressed with large scrap (it separates easily), making handling and transportation very inconvenient and ultimately leading to a problem of reduced recycling rates.

[0010] Conventional technology refers to technical information that the inventor possessed for the derivation of the present invention or acquired during the process of deriving the present invention, and it cannot necessarily be considered publicly known technology disclosed to the general public prior to the filing of the present invention. Prior art literature

[0012] Republic of Korea Published Patent Application No. 10-2021-0036768 (Published April 5, 2021) The problem to be solved

[0013] In resolving the aforementioned problems, the objective of the present invention is to provide a scrap metal recycling device that enables the immediate crushing and molding of scrap metal at generation and collection sites, such as apartments and commercial buildings, to process it into intermediate materials having approximately the same size and shape, thereby facilitating the handling and transportation of scrap metal and improving the recycling rate.

[0015] The problems that the present invention aims to solve are not limited to those mentioned above, and other problems not mentioned will be clearly understood by a person skilled in the art to which the present invention belongs from the description below. means of solving the problem

[0017] A scrap metal recycling device according to an embodiment of the present invention comprises: a housing having a plurality of legs, with the upper and lower ends open and the sides closed; a two-axis crusher installed on the upper inner side of the housing and crushing scrap metal fed from the upper side; and an intermediate material forming machine installed on the lower inner side of the housing and forming the crushed scrap metal discharged from the two-axis crusher into a ball-shaped intermediate material.

[0018] According to one embodiment, the two-axis shredder may include a pair of shredder rotors that rotate in mesh with each other, a motor that rotates the shaft of one of the pair of shredder rotors, and a first case that encloses the pair of shredder rotors.

[0019] According to one embodiment, the intermediate material forming machine may include a drum having a plurality of ball forming grooves formed continuously in the circumferential direction on its outer surface, a motor for rotating the drum, and a cylindrical second case that surrounds the drum with a gap from the outer surface of the drum.

[0020] According to one embodiment, the two-axis shredder may have a first screen installed at the lower discharge port of the first case.

[0021] According to one embodiment, a first hopper is installed on the upper part of the intermediate material molding machine, and a second screen may be installed at the input port of the first hopper.

[0022] According to one embodiment, the second screen can be drawn out to the outside through a through hole formed on one side of the housing.

[0023] According to one embodiment, a second hopper may be installed at the bottom of the intermediate material molding machine.

[0024] According to one embodiment, a cutting fluid circulation device is installed between the first hopper and the second hopper, and the cutting fluid circulation device may include a cutting fluid inlet formed on one side of the second hopper, a connecting member installed on the back side of the cutting fluid inlet of the second hopper, an inlet pipe connected to the connecting member, a cutting fluid tank connected to the inlet pipe, a discharge pipe connecting the cutting fluid tank and the cutting fluid discharge port of the first hopper, and a pump installed inside the cutting fluid tank to discharge cutting fluid through the discharge pipe.

[0025] According to one embodiment, an electric cart may be disposed below the second hopper to collect intermediate materials falling from the second hopper.

[0026] According to one embodiment, the electric cart may be equipped with an infrared sensor that detects the amount of the intermediate material accumulated and an alarm device that operates upon receiving a signal from the infrared sensor.

[0027] According to one embodiment, the apparatus further includes a controller that controls the operation of the two-axis crusher, the intermediate material molding machine, and the cutting fluid circulation device, and the controller may be equipped with an alarm device that operates when it receives a signal from the infrared sensor.

[0028] According to one embodiment, the cutting fluid tank has an iron powder collection section formed with a lower surface formed as a fourth screen at the part where the inlet pipe is connected, and the iron powder collection section may be equipped with a door that rotates upward to open. Effects of the invention

[0030] As described above, the scrap metal recycling device according to the present invention enables the immediate crushing and molding of scrap metal at the generation and collection sites, such as apartments and commercial buildings, to process it into intermediate materials having approximately the same size and shape, thereby facilitating the handling and transportation of scrap metal and improving the recycling rate.

[0032] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by a person skilled in the art to which the present invention pertains from the description below. Brief explanation of the drawing

[0034] FIG. 1 is a perspective view of a scrap metal recycling device according to an embodiment of the present invention, viewed from the right (parts such as the housing and case are not shown to illustrate the internal configuration). FIG. 2 is a perspective view of a scrap metal recycling device according to an embodiment of the present invention, viewed from the left (excluding the controller). FIG. 3 is a schematic cross-sectional view of a cutting fluid tank, which is one component of the present invention. Specific details for implementing the invention

[0035] In the present invention, the attached drawings may be illustrated with exaggerated expressions to distinguish it from the prior art, ensure clarity, and facilitate the understanding of the technology. Furthermore, the terms described below are defined considering their functions in the present invention; since these terms may vary depending on the intentions or conventions of the user or operator, their definitions should be based on the technical content throughout this specification. Meanwhile, the embodiments are merely exemplary details of the components presented in the claims of the present invention and do not limit the scope of the rights of the present invention; the scope of rights should be interpreted based on the technical concept throughout the specification of the present invention.

[0036] Throughout the specification, when a configuration is described as "including" a configuration, this means that, unless specifically stated otherwise, it does not exclude other configurations but may include additional configurations.

[0037] Furthermore, when it is said that one configuration is “connected,” “connected,” or “combined” to another configuration, this means that it is not only a case of being ‘directly connected,’ ‘directly connected,’ or ‘directly combined,’ but also a case where it is ‘connected with another configuration interposed,’ ‘connected with another configuration interposed,’ or ‘combined with another configuration interposed.’ On the other hand, when it is said that one configuration is “directly connected,” “directly connected,” or “directly combined” to another configuration, it should be understood that no other configuration exists in between.

[0038] In addition, when directional terms such as “front,” “back,” “up,” “down,” “left,” “right,” “first end,” “other end,” and “both ends” are used, they are used exemplarily in relation to the orientation of the disclosed drawings and should not be interpreted restrictively, and when terms such as “first” and “second” are used, they are terms used to distinguish each configuration and should not be interpreted restrictively.

[0039] In order to more clearly explain the features of the embodiments of the present invention, detailed descriptions of matters widely known to those skilled in the art to which the following embodiments pertain are omitted. Additionally, detailed descriptions of parts in the drawings that are unrelated to the description of the embodiments are omitted.

[0041] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0042] FIG. 1 is a perspective view of a scrap metal recycling device according to an embodiment of the present invention viewed from the right (parts such as the housing and case are not shown to illustrate the internal configuration), FIG. 2 is a perspective view of a scrap metal recycling device according to an embodiment of the present invention viewed from the left (excluding the controller), and FIG. 3 is a schematic cross-sectional view of a cutting fluid tank which is a component of the present invention.

[0044] Referring to FIGS. 1 to 3, a scrap metal recycling device according to an embodiment of the present invention includes a housing (170), a twin-axis crusher (110), and an intermediate material molding machine (120).

[0045] Additionally, the scrap metal recycling device according to an embodiment of the present invention may further include a first screen (113a), a second screen (180), a first hopper (130), a second hopper (140), a cutting fluid circulation device (160), an electric cart (200), and a controller (300).

[0046] Drawing reference numeral 100 refers to a ‘device body’ including the housing (170) and various components installed inside it.

[0048] The housing (170) provides a place for installing the two-axis shredder (110) and the intermediate material molding machine (120), which are the main components of the device body (100), and is configured to shield the two-axis shredder (110) and the intermediate material molding machine (120) from the outside. Therefore, it is possible to prevent safety accidents caused by the two-axis shredder (110) and the intermediate material molding machine (120), and to reduce noise radiated from them.

[0049] The above housing (170) has an open top and bottom, a closed side, and is equipped with a plurality of legs (150).

[0050] The above housing (170) is in the shape of a rectangular tube and forms an installation space that is blocked from the outside, and scrap metal can be fed through the open top and intermediate material can be discharged through the open bottom.

[0051] The above housing (170) can be provided with a plurality of legs (150) at the bottom to achieve a height suitable for use, and the electric cart (200) can be placed between the legs (150) to directly drop the produced intermediate material onto the electric cart (200) for accumulation.

[0053] The above-mentioned two-axis crusher (110) is installed on the inner upper part of the housing (170) and is configured to crush and discharge scrap metal fed from the top.

[0054] The above-mentioned two-axis crusher (110) includes a pair of crushing rotors (111) that rotate in mesh with each other, a motor (112) that rotates the shaft of one of the pair of crushing rotors (111), and a first case (113) that encloses the pair of crushing rotors (111).

[0055] The crushing rotor (111) can also be referred to as a crushing blade or cutter, and is manufactured from high-quality alloy steel with excellent strength and wear resistance. Although it is schematically depicted in the drawing as having a shape similar to a spur gear, it is formed with a structure in which multiple blades can overlap and rotate.

[0056] Scrap metal fed into the upper inlet is crushed into small pieces as it passes between the pair of crushing rotors (111) and is cut or torn.

[0057] The motor (112) is an integrated type with a reduction gear, and the reduction gear reduces the rotational speed of the motor (112) to increase the rotational force (torque). Accordingly, the pair of crushing rotors (111) crush scrap metal while rotating with a strong force at a low speed.

[0058] The first case (113) above surrounds the entire periphery of the pair of crushing rotors (111) to form a crushing chamber.

[0059] The above-mentioned two-axis shredder (110) has a first screen (113a) installed at the lower discharge port of the first case (113).

[0060] Therefore, only scrap metal crushed to a size that can pass through the first screen (113a) is discharged to the lower part of the two-axis crusher (110).

[0062] The above intermediate material forming machine (120) is installed in the inner lower part of the housing (170) and is configured to form the scrap metal crushed material discharged from the two-axis crusher (110) into a ball-shaped intermediate material.

[0063] The above-mentioned ball-shaped intermediate material is easy to handle, transport, and use, which helps to increase the recycling rate of scrap metal.

[0064] The above intermediate material forming machine (120) includes a drum (121) having a plurality of ball forming grooves (121a) formed continuously in the circumferential direction on its outer surface, a motor (122) for rotating the drum (121), and a cylindrical second case (123) that surrounds the drum (121) with a gap on the outer surface of the drum (121).

[0065] The drum (121) is rotated by the motor (122). Scrap metal introduced from the upper side flows into the gap between the rotating drum (121) and the second case (123). At this time, because the gap between the drum (121) and the second case (123) is smaller than the scrap metal introduced into the intermediate material molding machine (120), the scrap metal flows into the ball forming groove (121a), which has relatively more space, and is compressed while rotating along the ball forming groove (121a) to form an intermediate material in the shape of a ball.

[0066] The ball-shaped intermediate material is discharged through the intermediate material discharge port (123a) formed on one side of the lower part of the second case (123).

[0067] Meanwhile, cutting fluid can be supplied to the intermediate material forming machine (120) along with the scrap metal crush. Therefore, as the scrap metal crush is compressed while rotating between the drum (121) and the second case (123), the cutting fluid flows together, thereby providing lubrication and cooling. Consequently, the intermediate material forming machine (120) can be protected from wear and high heat, thereby increasing its lifespan. Furthermore, since the discharge of the intermediate material is facilitated and the temperature is lowered, it is easy for the operator to handle during the transportation process using the electric cart (200).

[0068] In addition, the cutting fluid circulation device (160) is installed to continuously supply the cutting fluid, and its configuration will be explained in more detail later.

[0070] As described above, the first screen (113a) is configured to be installed in the first case (113) of the two-axis crusher (110) to sort the scrap metal in the first stage (sort by size).

[0072] The second screen (180) is installed at the top of the first hopper (130), that is, at the input port, and is configured to sort the scrap metal secondarily (sort by size).

[0073] The mesh size of the second screen (180) is the same as or smaller than the mesh size of the first screen (113a), and allows crushed scrap metal of a size suitable for being fed into the intermediate material molding machine (120) to be passed through.

[0074] The second screen (180) is installed so that it can be pulled out to the outside through a through hole (171) formed on one side of the housing (170).

[0075] A handle (181) is installed at the center of one end of the second screen (180) so that a worker can hold it with their hand, and the handle (181) protrudes outward from the housing (170).

[0076] Accordingly, the operator can take the handle (181) and take the second screen (180) out of the housing (170) to remove large scrap metal fragments that are stuck in the mesh of the second screen (180) or piled up on top.

[0078] The first hopper (130) is configured to be installed on the upper part of the intermediate material molding machine (120).

[0079] That is, the first hopper (130) is installed between the two-axis crusher (110) and the intermediate material molding machine (120).

[0080] The second screen (180) is installed at the upper input port of the first hopper (130).

[0081] The lower discharge port of the first hopper (130) is in contact with the upper inlet port of the second case (123) of the intermediate material molding machine (120).

[0082] Therefore, the scrap metal crushed material discharged from the above-mentioned two-axis crusher (110) and passed through the above-mentioned second screen (180) can be smoothly fed into the above-mentioned intermediate material molding machine (120).

[0084] The second hopper (140) is configured to be installed at the bottom of the intermediate material molding machine (120).

[0085] The upper part of the second hopper (140) is simply open upward, and an intermediate material discharge port (141) is formed in the center of the lower part.

[0086] Accordingly, the ball-shaped intermediate material formed and discharged from the intermediate material molding machine (120) falls downward through the intermediate material discharge port (141) and accumulates inside the electric cart (200).

[0087] A cutting fluid inlet (142) is formed on the upper side of one side of the second hopper (140). A third screen (142a) having a mesh of a size that allows only cutting fluid to pass through and prevents ball-shaped intermediate materials from passing through is installed in the cutting fluid inlet (142).

[0089] The above cutting fluid circulation device (160) is installed between the first hopper (130) and the second hopper (140).

[0090] The above cutting fluid circulation device (160) comprises a cutting fluid inlet (142) formed on one side of the second hopper (140), a connecting member (161) installed on the back side of the cutting fluid inlet (142) of the second hopper (140), an inlet pipe (162) connected to the connecting member (161), a cutting fluid tank (163) connected to the inlet pipe (162), a discharge pipe (164) connecting the cutting fluid tank (163) and the cutting fluid discharge port (not shown) of the first hopper (130), and a pump (165) installed inside the cutting fluid tank (163) to discharge cutting fluid into the discharge pipe (164).

[0091] The intermediate material discharge port (123a) of the intermediate material molding machine (120) discharges the intermediate material and cutting fluid to one inclined surface of the second hopper (140). At this time, the cutting fluid inlet port (142) is formed on one inclined surface of the second hopper (140) at a portion that is at least equal to or lower than the point where the intermediate material and cutting fluid fall.

[0092] Accordingly, the cutting fluid flows into the cutting fluid inlet (142) through the third screen (142a), and the intermediate material rolls downward along the inclined surface of the third screen (142a) toward the intermediate material outlet (141). That is, the cutting fluid and the intermediate material are separated by the third screen (142a).

[0093] The cutting fluid introduced through the cutting fluid inlet (142) is collected in the cutting fluid tank (163) through the connecting member (161) and the inlet pipe (162), and the cutting fluid stored in the cutting fluid tank (163) is forcibly transported by the pump (165) and discharged through the cutting fluid outlet formed in the first hopper (130) via the discharge pipe (164).

[0094] In this way, by circulating the cutting fluid between the first hopper (130) and the second hopper (140), the cutting fluid can be continuously supplied to the intermediate material molding machine (120) with only a small amount of cutting fluid.

[0095] Meanwhile, the cutting fluid tank (163) has an iron powder collection section (163b) formed on the lower surface of which is formed as a fourth screen (163a) at the part where the inlet pipe (162) is connected, and the iron powder collection section (163b) may be equipped with a door (163c) that rotates upward to open.

[0096] Accordingly, the cutting fluid flowing in through the inlet pipe (162) passes through the fourth screen (163a) and accumulates at the bottom of the cutting fluid tank (163), and the iron powder flowing in with the cutting fluid remains in the iron powder collection section (163b).

[0097] Therefore, by opening the door (163c) and periodically removing the iron powder collected in the iron powder collection unit (163b), the cutting fluid can be kept in a clean state, which helps maintain the function of the cutting fluid and extend the lifespan of the pump (165).

[0099] The electric cart (200) is positioned below the second hopper (140) and is configured to accumulate intermediate materials falling from the second hopper (140).

[0100] The electric cart (200) comprises a collection box (210) into which intermediate materials are dropped and stacked, a plurality of wheels (220) provided at the bottom of the collection box (210), and a steering device (230) provided at one side of the top of the collection box (210). In addition, it includes a driving device and a steering device for driving and steering some of the wheels (220).

[0101] Therefore, a worker can easily transport a large amount of intermediate materials to another location without effort using an electric cart (200).

[0102] Meanwhile, the electric cart (200) may be equipped with an infrared sensor (240) that detects the amount of the intermediate material accumulated and an alarm device (250) that operates when it receives a signal from the infrared sensor (240).

[0103] Accordingly, when an appropriate amount of intermediate material is accumulated in the above-mentioned collection box (210), a detection signal is generated by the infrared sensor (240), and the alarm device (250) that receives the detection signal generates an alarm signal such as light or sound to inform the worker that an appropriate amount of intermediate material has been accumulated in the above-mentioned collection box (210) (prevention of overloading).

[0105] The above controller (300) can be fixedly installed on an adjacent wall or floor surface of the place where the device body (100) is installed.

[0106] The above controller (300) is configured to control the operation of the above-mentioned two-axis crusher (110), the above-mentioned intermediate material molding machine (120), the above-mentioned cutting fluid circulation device (160), etc., and includes operation buttons (310) for controlling the operation of the above-mentioned two-axis crusher (110), the above-mentioned intermediate material molding machine (120), the above-mentioned cutting fluid circulation device (160), etc., respectively. In addition, a button that can turn all of the above-mentioned devices on / off at once may also be provided.

[0107] In addition, the controller (300) may be equipped with an alarm device (320) that operates when it receives a signal from the infrared sensor (240).

[0108] In this way, when the alarm device (320) is installed in the controller (300), there is no need to install the alarm device (250) in the electric cart (250). Therefore, since there is no need to individually install the alarm device (250) on each of the multiple electric carts (250), the configuration of the electric cart (200) is simplified, manufacturing costs are reduced, and the risk of damage to the alarm device (250) can be reduced.

[0109] The configuration and operating effect of the alarm device (320) of the controller (300) are the same as those of the alarm device (250) installed on the electric cart (200).

[0111] Now, the operation and effects of the scrap metal recycling device according to an embodiment of the present invention will be explained.

[0112] First, the operation button (310) of the controller (300) is operated to activate the two-axis crusher (110), the intermediate material molding machine (120), and the cutting fluid circulation device (160).

[0113] When the collected small scrap metal is fed into the two-axis shredder (110), it is crushed into small pieces as it is drawn between the pair of shredding rotors (111). Scrap metal that is small enough to pass through the first screen (113a) falls downwards, while scrap metal that is not is pushed back up between the shredding rotors (111) and the first case (113) and the process of being shredded again is repeated until it eventually falls through the first screen (113a).

[0114] As such, by using a two-axis shredder (110), the scrap metal can be shredded very quietly compared to when using a hammer mill or other impact-type shredder, so the scrap metal recycling device according to the embodiment of the present invention can be usefully used in places where small scrap metal is mainly generated and collected, such as apartments, shopping malls, and small recycling centers.

[0115] Scrap metal fragments discharged from the above-mentioned two-axis crusher (110) pass through the above-mentioned second screen (180) and are dropped into the above-mentioned intermediate material forming machine (120) through the above-mentioned first hopper (130). As time passes, scrap metal fragments may get stuck or accumulate in the above-mentioned second screen (180). In this case, the accumulation of scrap metal fragments can be cleared and discharged downward by holding the above-mentioned handle (181) and shaking it quickly. Additionally, scrap metal fragments that are too small to pass through the above-mentioned second screen (180) can be removed by removing the above-mentioned second screen (180) through the above-mentioned through hole (171) formed in the above-mentioned housing (170).

[0116] The crushed scrap metal fed into the intermediate material molding machine (120) is fed between the ball forming groove (121a) of the drum (121) and the second case (123), rotated and compressed to form an intermediate material in the shape of a ball, and then discharged through the intermediate material discharge port (123a) formed in the second case (123).

[0117] In the ball forming process of such shredded scrap metal, the cutting fluid supplied to the first hopper (130) by the cutting fluid circulation device (160) flows together with the shredded scrap metal along the same path, thereby reducing noise, heat generation, and dust generated during the forming process. Additionally, the wear of the drum (121) and the second case (123) is reduced, thereby extending the lifespan of the intermediate material forming machine (120).

[0118] When intermediate material and cutting fluid fall from the intermediate material discharge port (123a), the intermediate material does not pass through the third screen (142a) and descends along the inclined surface, and is discharged through the intermediate material discharge port (141) of the second hopper (140), thereby accumulating in the collection box (210) of the electric cart (200).

[0119] Then, the cutting fluid flows into the cutting fluid inlet (142) through the third screen (142a), and then flows into the cutting fluid tank (163) via the connecting member (161) and the inlet pipe (162).

[0120] Afterwards, it is pumped by the pump (165) and discharged through the discharge pipe (164) at the cutting fluid discharge port formed on the side of the first hopper (130), thereby being supplied back to the intermediate material molding machine (120).

[0121] In this way, a small amount of cutting fluid can be circulated to continuously supply cutting fluid to the intermediate material molding machine (120).

[0122] Additionally, the cutting fluid tank (163) is provided with an iron powder collection unit (163b) equipped with the fourth screen (163a). Therefore, by periodically opening the door (163c) and removing the iron powder accumulated on the fourth screen (163a), the cleanliness of the cutting fluid can be maintained in good condition.

[0123] Meanwhile, intermediate materials falling from the second hopper (140) are continuously accumulated in the accumulation box (210) of the electric cart (200). When the amount reaches a set amount, that is, when it reaches a level detectable by the infrared sensor (240), a detection signal is generated by the infrared sensor (240). The detection signal is transmitted to the alarm device (250) installed on the electric cart (200) or the alarm device (320) installed on the controller (300) to inform the worker, by means of light or sound, that an appropriate amount of intermediate materials has been accumulated that is not difficult to transport.

[0124] A worker who recognizes the operation of the above alarm device (250, 320) operates the control device (230) of the above electric cart (200) to move the electric cart (200) and transport the intermediate material to a packaging place or an input place for recycling processing.

[0125] In this way, by transporting intermediate materials using the electric cart (200) above, the labor intensity of the worker is greatly reduced, thereby preventing musculoskeletal disorders of the worker.

[0126] In addition, the infrared sensor (240) and the alarm device (250, 320) are provided to prevent overloading, thereby preventing mechanical damage to the electric cart (200), overturning, and injury to the worker.

[0127] As such, unlike conventional crushers that merely cut scrap metal with small operations, the scrap metal recycling device according to the embodiment of the present invention not only performs the crushing, particle sorting, and ball-shaped intermediate material forming of scrap metal consistently and automatically, but also has an electric cart for preventing overloading connected to the system, so the scrap metal recycling process can be carried out very easily, simply, and safely.

[0129] As described above, the scrap metal recycling device according to the present invention enables the immediate crushing and molding of scrap metal at the generation and collection sites, such as apartments and commercial buildings, to process it into intermediate materials having approximately the same size and shape, thereby facilitating the handling and transportation of scrap metal and improving the recycling rate.

[0131] As described above, the present invention has been explained with reference to the embodiments illustrated in the drawings, but this is merely illustrative, and it should be understood that various modifications and equivalent alternative embodiments are possible based on the ordinary knowledge of the art to which the art belongs. Accordingly, the true technical scope of protection of the present invention is defined by the claims described below and should be determined based on the specific details of the invention described above. Industrial applicability

[0133] The present invention relates to a scrap metal recycling device and can be used in industrial fields that crush materials of unspecified forms to produce intermediate goods of specific forms.

[0134] No content Explanation of the symbols

[0135] 100: Device body 110: Twin-axis shredder 111: Crusher rotor 112: Motor 113: Case 1 113a: Screen 1 120: Intermediate product forming machine 121: Drum 121a: Ball molding groove 122: Motor 123: Case 2 123a: Intermediate product outlet 130: Hopper No. 1 140: Hopper No. 2 141: Intermediate material discharge port 142: Cutting fluid inlet port 142a: 3rd Screen 150: Leg 160: Cooling fluid circulation device 161: Connecting member 162: Inlet pipe 163: Cutting fluid tank 163a: 4th Screen 163b: Iron Powder Recycler 163c: Door 164: Exhaust pipe 170: Housing 171: Through hole 180: 2nd Screen 200: Electric Cart 210: Collection box 220: Wheels 230: Control device 240: Infrared sensor 250: Alarm device 300: Controller 310: Control button 320: Alarm device

Claims

Claim 1 A scrap metal recycling device comprising: a housing having a plurality of legs, with the upper and lower ends open and the sides closed; a two-axis crusher installed on the inner upper end of the housing and crushing scrap metal fed from the upper end; and an intermediate material forming machine installed on the inner lower end of the housing and forming the crushed scrap metal discharged from the two-axis crusher into a ball-shaped intermediate material; wherein the intermediate material forming machine comprises a drum having a plurality of ball-forming grooves formed continuously in the circumferential direction on its outer surface, a motor for rotating the drum, and a cylindrical second case surrounding the drum with a gap on the outer surface of the drum. Claim 2 A scrap metal recycling device according to claim 1, wherein the two-axis crusher comprises a pair of crushing rotors that rotate in mesh with each other, a motor that rotates the shaft of one of the pair of crushing rotors, and a first case that encloses the pair of crushing rotors. Claim 3 delete Claim 4 In paragraph 2, the scrap metal recycling device is characterized in that the two-axis crusher has a first screen installed at the lower discharge port of the first case. Claim 5 A scrap metal recycling device according to claim 1, characterized in that a first hopper is installed on the upper part of the intermediate material forming machine, and a second screen is installed at the input port of the first hopper. Claim 6 A scrap metal recycling device according to claim 5, characterized in that the second screen is installed so as to be drawn out to the outside through a through hole formed on one side of the housing. Claim 7 A scrap metal recycling device characterized in that, in claim 5, a second hopper is installed at the bottom of the intermediate material forming machine. Claim 8 A scrap metal recycling device according to claim 7, wherein a cutting fluid circulation device is installed between the first hopper and the second hopper, and the cutting fluid circulation device comprises a cutting fluid inlet formed on one side of the second hopper, a connecting member installed on the back of the cutting fluid inlet of the second hopper, an inlet pipe connected to the connecting member, a cutting fluid tank connected to the inlet pipe, a discharge pipe connecting the cutting fluid tank and the cutting fluid discharge port of the first hopper, and a pump installed inside the cutting fluid tank to discharge cutting fluid into the discharge pipe. Claim 9 A scrap metal recycling device according to claim 8, characterized in that an electric cart is positioned below the second hopper to collect intermediate materials falling from the second hopper. Claim 10 In claim 9, the scrap metal recycling device is characterized in that the electric cart is equipped with an infrared sensor that detects the amount of accumulated intermediate material and an alarm device that operates upon receiving a signal from the infrared sensor. Claim 11 A scrap metal recycling device according to claim 10, further comprising a controller that controls the operation of the above-mentioned two-axis crusher, the above-mentioned intermediate material forming machine, and the above-mentioned cutting fluid circulation device, wherein the controller is equipped with an alarm device that operates upon receiving a signal from the above-mentioned infrared sensor. Claim 12 A scrap metal recycling device according to claim 8, wherein the cutting fluid tank has an iron powder collection section formed with a lower surface formed of a fourth screen at the part where the inlet pipe is connected, and the iron powder collection section is equipped with a door that rotates upward to open.

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