A metal waste recycling and processing device and its usage method

Abstract

This invention discloses a metal waste recycling and processing device and its usage method, relating to the field of metal recycling technology. It includes a machine base, an installation box mounted on top of the machine base, a feeding hopper mounted on top of the installation box, a crusher installed inside the installation box, and two rollers rotatably mounted inside the crusher. A torque sensor is rotatably connected to the outer right end of the rear roller, and a high-torque motor is installed at the right end of the rear roller. An abutment block is installed on the outer side of both the front and rear rollers. This invention features an abutment block; when the hardness of the metal material is high, leading to increased roller torque and bearing friction, a pusher block drives the abutment block to press against the roller along a slide block, cooperating with the inner rollers to provide support force compensation for the roller, reducing relative bearing friction. When the pusher block moves upward, it simultaneously contacts the oil pusher plug, squeezing lubricating oil which is then delivered to the oil tank via a hose, achieving simultaneous support force compensation and lubrication protection.

Description

Technical Field

[0001] This invention relates to the field of metal recycling technology, specifically to a metal waste recycling and processing device and its usage method. Background Technology

[0002] The construction of foundation pits generates a large amount of metal waste, mainly including waste steel bars, steel formwork, embedded parts, metal connectors, and metal tools damaged during construction. The metal waste generated from foundation pit construction contains a large amount of high-value recyclable metals. If it can be effectively recycled, it can significantly reduce the cost of engineering materials, which is in line with the development requirements of green construction and circular economy in the construction industry.

[0003] In the field of metal waste recycling, existing roller crushers achieve the crushing of metal waste through relatively rotating rollers. However, due to the differences in the materials and hardness of the metal waste to be recycled, the resistance experienced by the rollers changes during the crushing process. Consequently, the output torque of the rollers increases synchronously with the increase in the hardness of the metal material. As the torque increases, the rotational friction at the roller bearings also increases. However, existing devices do not have a support force compensation mechanism for the rollers, which increases the risk of bearing wear and damage when crushing high-hardness metal materials, affecting the stable operation of the device.

[0004] To address the aforementioned issues, innovative designs are urgently needed based on existing approaches. Summary of the Invention

[0005] The purpose of this invention is to provide a metal waste recycling and processing device and its usage method to solve the problems mentioned in the background art. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a metal waste recycling and processing device and its method of use, comprising a machine base, an installation box mounted on top of the machine base, a feeding hopper mounted on top of the installation box, a crusher mounted inside the installation box, two rollers rotatably mounted inside the crusher, a torque sensor rotatably connected to the outer right end of the rear roller, the torque sensor being mounted on a boss on the right side of the machine base, a high-torque motor mounted on the right end of the rear roller, and abutments mounted on the outer sides of both the front and rear rollers. The machine comprises two clamping blocks, each with multiple rollers rotatably mounted on its inner side. A slide block is positioned below each clamping block, and a hydraulic seat is connected to the lower end of the slide block. The hydraulic seat is fixed to the top of the machine. The two clamping blocks are slidably mounted in a groove in the middle of the slide block via springs. A push block is slidably and sealingly mounted within a vertical groove at the top of the hydraulic seat. The tops of the two push blocks are in contact with the clamping blocks. An oil cavity is provided below the hydraulic seat, and a plug is slidably and sealingly mounted at the front end of the oil cavity via an electric push rod. A lubrication assembly is provided between the clamping blocks and the push blocks.

[0007] Preferably, the crusher is a roller crusher, and the two rollers are connected by gear meshing.

[0008] Preferably, the upper inner side of the push block is designed as a slope, and the upper slope structure of the push block corresponds to the outer slope structure of the clamping block.

[0009] Preferably, the lubrication assembly includes an oil tank and an oil pusher body. The oil tank is located inside the abutment block. The oil pusher body is connected to the protrusion on the outer wall of the abutment block. The oil pusher body is slidably connected to the oil inlet tank. The oil inlet tank is installed on the top of the slide block. The upper end of the oil inlet tank is provided with port one and port two. An oil replenishment tank is fixedly installed on the outside of the oil inlet tank. Port one is connected to the oil tank through a one-way valve and a hose. Port two is connected to the oil replenishment tank through a one-way valve and a hose. The arc-shaped sidewall of the oil tank has multiple oil outlet holes equidistantly spaced circumferentially.

[0010] Preferably, a rubber plug is provided inside the oil outlet, and a cross-shaped opening is formed on the surface of the rubber plug. The rubber plug is used to spray oil under a certain pressure.

[0011] Preferably, the center of the inner arc-shaped structure of the clamping block corresponds to the center of the roller structure, and the arc-shaped structure of the oil groove corresponds to the arc-shaped sidewall of the clamping block.

[0012] Preferably, the rollers are circumferentially equidistantly installed on the outer sidewall of the abutment block, and the rollers are used for rotating abutment of the roller body.

[0013] Preferably, the method includes the following steps:

[0014] S1: The metal waste is fed into the crusher in the installation box from the feeding hopper. The high torque motor drives two sets of meshing rollers to rotate relative to each other, shredding the metal waste.

[0015] S2: When the hardness of the metal waste is high, the motor output torque increases, the torque sensor transmits a signal to the controller, and controls the electric push rod to push the oil in the compression chamber of the plug body, so that the push block moves upward, and the contact with the pressing block provides the corresponding torque support force to the roller body.

[0016] S3: When the push block moves upward, it works in conjunction with the lubrication assembly to lubricate the inner rollers of the pressing block, reducing the friction between the roller body and the rollers;

[0017] S4: When the metal hardness is low, the plug body resets, the pusher block drives the clamping block to reset under the action of the spring, the oil pusher body falls down to draw in the oil to replenish the oil in the oil tank, and the device returns to the initial state.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention achieves a supporting force compensation function by setting a clamping block and utilizing the sliding contact of the clamping block with the roller body. When the metal material to be processed has a high hardness, the push block forms a contacting engagement with the clamping block during its displacement process, thereby pushing the clamping block to slide along the slide block towards the roller body and contact the roller body. Since the metal material has a high hardness, the roller body is prone to increased resistance and friction at the corresponding bearing components due to the force, which requires the motor to increase the corresponding torque for crushing. At this time, the directional clamping of the clamping block, combined with the rotational contact of the roller, provides a corresponding supporting force for the rotating roller body, thereby reducing the relative friction between the roller body and the bearing components, achieving supporting force compensation for the roller body, and improving the maintenance cycle of the equipment.

[0020] 2. This invention includes a lubrication assembly, wherein the oil groove and the oil outlet correspond to the lubrication area of ​​the roller body, and the pusher plug and the pusher block cooperate with each other. When the pusher block moves upward, it simultaneously abuts against the clamping block and the pusher plug. On the one hand, it pushes the clamping block to move along the slide to achieve support force compensation, and on the other hand, it drives the pusher plug to squeeze the lubricating oil inside the oil storage chamber upward. The squeezed lubricating oil is transported to the oil groove through the hose connected to port one, and then seeps out to the surface of the roller body through the oil outlet at the bottom of the oil groove. During the rotation of the roller body, in conjunction with the rotation of the roller and the fluidity of the lubricating oil itself, the lubricating oil can cover the contact area between the roller body and the clamping block, effectively reducing the relative friction between the two, and achieving simultaneous support force compensation and lubrication protection. This ensures support force compensation and provides lubrication protection for the roller body, further improving the maintenance cycle of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the crusher structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the crusher of the present invention;

[0024] Figure 4 This is a schematic diagram of the roller structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the hydraulic seat structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the clamping block structure of the present invention;

[0027] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0028] In the diagram: 1. Machine base; 2. Mounting box; 3. Feed hopper; 4. Crusher; 41. Roller; 5. Torque sensor; 6. High torque motor; 7. Clamping block; 8. Roller; 9. Slide; 10. Push block; 11. Hydraulic seat; 121. Oil chamber; 122. Plug; 131. Oil tank; 132. Oil outlet; 133. Port 1; 134. Port 2; 135. Oil inlet tank; 136. Push plug body; 137. Oil replenishment tank. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1 to 7This invention provides a technical solution: a metal waste recycling and processing device, wherein a mounting box 2 is installed above a machine base 1, a feeding hopper 3 is installed above the mounting box 2, a crusher 4 is installed inside the mounting box 2, two rollers 41 are rotatably installed inside the crusher 4, the crusher 4 is a roller crusher, the two rollers 41 are connected by gear meshing, a torque sensor 5 is rotatably sleeved on the outer right end of the rear roller 41, the torque sensor 5 is installed on the right side boss of the machine base 1, a high torque motor 6 is installed at the right end of the rear roller 41, a retaining block 7 is installed on the outer side of both the front and rear rollers 41, and multiple rollers 8 are rotatably installed inside the two retaining blocks 7, the rollers 8 are mounted on the retaining blocks The arc-shaped sidewall of 7 is equidistantly installed around the outer circumference. The rollers 8 are used for the rotational contact of the roller body 41. A slide seat 9 is provided below the two pressing blocks 7. The lower end of the slide seat 9 is connected to a hydraulic seat 11. The hydraulic seat 11 is fixed on the top of the machine base 1. The two pressing blocks 7 are slidably installed in the groove in the middle of the slide seat 9 by springs. A push block 10 is slidably installed in the vertical slide groove at the top of the hydraulic seat 11. The tops of the two push blocks 10 are in contact with the pressing blocks 7. The inner side of the upper end of the push block 10 is designed as a slope. The slope structure of the upper end of the push block 10 corresponds to the outer slope structure of the pressing block 7. An oil cavity 121 is opened below the hydraulic seat 11. A plug body 122 is slidably installed at the front end of the oil cavity 121 by an electric push rod.

[0031] The metal waste to be recycled is fed into the installation box 2 of the device through the feeding hopper 3. Under the action of gravity, the metal waste falls between the two sets of rollers 41 of the crusher 4. The high-torque motor 6 is started, and the power output of the motor drives one set of rollers 41 to rotate. Since the two sets of rollers 41 are connected by gear meshing, they are driven to rotate in opposite directions. The crushing structure on the surface of the rollers 41 squeezes and shears the metal waste to achieve the initial recycling and crushing of the metal waste. When the hardness of the metal waste to be processed is high, the resistance encountered by the rollers 41 during the crushing process increases, causing the rotational torque of the rollers 41 to increase synchronously. At this time, the torque sensor 5 installed at the rotating shaft of the rollers 41 detects the torque change signal in real time and transmits the signal to the central control system of the device. After judging according to the preset torque threshold, the central control system sends a drive command to the electric push rod. The output shaft of the electric push rod extends and pushes the piston. The plug 122 slides from the front end to the rear end inside the oil cavity 121, thereby gradually squeezing the hydraulic oil stored in the oil cavity 121 into the middle and rear section of the oil cavity 121. As the plug 122 continues to move, the effective cavity space inside the oil cavity 121 is further compressed. The concentrated hydraulic oil generates high pressure due to volume contraction. Under the thrust of the high-pressure oil, the push block 10 moves upward along the vertical groove opened on the hydraulic seat 11. The upper end of the push block 10 passes through the pre-set surface of the slide seat 9. After the opening is made, it forms a contact fit with the two sets of abutting blocks 7 slidably installed on the slide block 9. Under the pushing force of the push block 10, the two sets of abutting blocks 7 move synchronously from both ends to the middle along the guide structure of the slide block 9 and abut against the outer circumferential surface of the roller body 41, thereby compensating for the support force of the roller body 41. At the same time, the rollers 8, which are rotatably set on the inner side of the abutting block 7 through the rotating shaft, roll against the outer circumferential surface of the roller body 41, which can reduce the frictional resistance between the abutting block 7 and the roller body 41 and ensure the smooth operation of the shredding operation.

[0032] Example 2

[0033] Based on Example 1, please refer to Figures 1 to 7A lubrication assembly is provided between the pressing block 7 and the push block 10. The lubrication assembly includes an oil groove 131 and an oil pusher 136. The oil groove 131 is located inside the pressing block 7. The center of the arc-shaped structure inside the pressing block 7 corresponds to the center of the structure of the roller body 41. The arc-shaped structure of the oil groove 131 corresponds to the arc-shaped sidewall of the pressing block 7. The oil pusher 136 is connected to the protrusion on the outer wall of the push block 10. The oil pusher 136 is slidably connected to the oil inlet tank 135. The oil inlet tank 135 is installed on the top of the slide block 9 and provides oil inlet. The upper end of the tank 135 is provided with port 133 and port 134. The oil replenishment tank 137 is fixedly installed on the outside of the oil tank 135. Port 133 is connected to the oil tank 131 through a one-way valve and a hose. Port 134 is connected to the oil replenishment tank 137 through a one-way valve and a hose. The arc-shaped side wall of the oil tank 131 has multiple oil outlet holes 132 equidistantly opened on the circumferential direction. A rubber plug is installed in the oil outlet hole 132. The surface of the rubber plug has a cross-shaped opening. The rubber plug is used to spray out the oil under a certain pressure.

[0034] As the pusher block 10 moves upward, its outer protrusion simultaneously abuts against the oil pusher plug 136 in the lubrication assembly. Under the action of the thrust, the oil pusher plug 136 slides upward along the inner wall of the oil inlet tank 135, generating a squeezing force on the lubricating oil stored inside the oil inlet tank 135. Under the action of the squeezing force, the lubricating oil in the oil inlet tank 135 is sequentially transported to the oil tank 131 of the corresponding roller body 41 to be lubricated through the one-way valve and hose installed at port 133. As the lubricating oil is continuously injected into the oil tank 131, the tank... As the internal pressure gradually increases, the cross-shaped cut on the rubber plug inside the oil outlet 132 opens under pressure, forming a gap. Lubricating oil seeps out from the oil outlet 132 through this gap to the outer circumference of the roller body 41 and the surface of the roller 8. During the continuous rotation of the roller body 41, in conjunction with the rolling action of the roller 8 and the fluidity of the lubricating oil itself, the lubricating oil can lubricate the contact area between the roller body 41 and the pressing block 7 and the roller 8, reducing relative friction, lowering the degree of wear, and achieving simultaneous support force compensation and lubrication protection. When the hardness of the metal waste to be processed is relatively low, the resistance of the roller 41 is within the normal range, and the torque value detected by the torque sensor 5 is lower than the preset threshold, the central control system determines that no support force compensation is required, and then controls the output shaft of the electric push rod to retract, driving the plug 122 to reset along the inside of the oil chamber 121. The hydraulic oil pressure in the oil chamber 121 is released, and the push block 10 resets downward along the vertical slide groove under its own weight and the back pressure of the hydraulic oil. After the push block 10 resets, its resistance to the clamping block 7 disappears, and the clamping block 7 is in the slide seat 9. Under the action of the internal spring, it slides to reset at both ends, releasing the clamping state of the roller body 41. At the same time, after the push block 10 is reset, its outer protrusion disengages from the oil push plug body 136. The oil push plug body 136 falls down to reset under its own gravity. During the downward movement of the oil push plug body 136, a negative pressure is formed inside the oil inlet tank 135. The oil is drawn into the oil inlet tank 135 through the hose and one-way valve at port 2 134, completing the automatic replenishment of lubricating oil and preparing for the next lubrication action, ensuring the continuity of the device's cyclic operation.

[0035] Example 3

[0036] As one embodiment of the present invention, the method includes the following steps:

[0037] S1: The metal waste is fed from the feeding hopper 3 into the crusher 4 inside the installation box 2. The high torque motor 6 drives two sets of meshing rollers 41 to rotate relative to each other, thus crushing the metal waste.

[0038] S2: When the hardness of the metal waste is high, the motor output torque increases, the torque sensor 5 transmits a signal to the controller, and controls the electric push rod to push the plug 122 to compress the oil in the oil chamber 121, so that the push block 10 moves upward, and provides corresponding torque support force to the roller body 41 in conjunction with the contact with the pressing block 7.

[0039] S3: When the pusher block 10 moves upward, it works in conjunction with the lubrication assembly to lubricate the inner roller 8 of the abutment block 7, thereby reducing the friction between the roller body 41 and the roller 8.

[0040] S4: When the metal hardness is low, the plug body 122 resets, the push block 10 drives the clamping block 7 to reset under the action of the spring, the oil push plug body 136 falls down to draw in the oil to replenish the oil in the oil tank 135, and the device returns to the initial state.

[0041] Working principle: When using this metal waste recycling and processing device and its usage method, firstly, the recycled metal waste is fed into the feeding hopper 3 and falls into the crusher 4 inside the installation box 2. The roller 41 is driven to rotate by the high torque motor 6. The two sets of rollers 41 are connected by gear meshing, which in turn drives the rollers 41 to rotate relative to each other to crush the metal waste.

[0042] Based on the above, when the hardness of the metal waste is high, the rotational torque of the roller 41 increases. The torque sensor 5 transmits the torque signal to the central control system, which controls the electric push rod via the console. The electric push rod pushes the plug 122 to slide from front to back inside the oil chamber 121, thereby concentrating the oil in the middle and rear section of the oil chamber 121. As the plug 122 moves, the internal space of the oil chamber 121 is further compressed, and the pressure increases after the oil is concentrated, causing the push block 10 to move upward along the vertical groove of the hydraulic seat 11. When the push block 10 moves upward, it will pass through the opening on the surface of the slide block 9 and abut against the sliding block 7 on the slide block 9. The abutment block 7 abuts against the roller body 41 from both ends of the slide block 9. The roller body 41 is prone to increased resistance and friction at the corresponding bearing components due to the force, which requires the motor to increase the corresponding torque for breaking. The inward abutment of the abutment block 7 can compensate for the support force of the roller body 41. In addition, the roller 8 rotatably set on the inner side of the abutment block 7 abuts against the roller body 41, which can assist the rotation of the roller body 41.

[0043] Based on the above, when the push block 10 moves upward, the outer protrusion of the push block 10 abuts against the oil pusher 136, and the oil pusher 136 pushes the oil inside the oil tank 135. The oil inside the oil tank 135 is fed into the oil tank 131 through the one-way valve and hose on port 133. After the oil is injected into the oil tank 131, the pressure inside the tank increases. Under the pressure, the cross opening on the rubber plug in the oil outlet 132 opens the gap, and the lubricating oil seeps out from the oil outlet 132. With the rotation of the roller 8 and the fluidity of the lubricating oil itself, the lubricating oil can lubricate and protect the roller 41, reduce the friction between the roller 41 and the pressing block 7, and thus protect the roller 41, achieving lubrication and protection of the roller 41 during the support force compensation process.

[0044] Based on the above, when the metal hardness is low, the roller body 41 does not need to be compensated for the support force. The plug body 122 is reset, the push block 10 is reset downwards, and after the pressing block 7 loses the resistance of the push block 10, the pressing block 7 is reset under the action of the spring. At the same time, after the push block 10 is reset, the oil push plug body 136 falls. By using the downward movement of the oil push plug body 136, the oil in the oil tank 135 is pumped and replenished through the hose and one-way valve on port two 134.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A metal scrap recycling device comprising a machine table (1), characterized in that: The machine platform (1) is provided with a mounting box (2), a feeding hopper (3) is mounted on the mounting box (2), a crusher (4) is mounted in the mounting box (2), two roller bodies (41) are rotatably mounted in the crusher (4), a torque sensor (5) is rotatably connected to the outer side of the right end of the roller body (41) at the rear side, the torque sensor (5) is mounted on the right side of the machine platform (1), a large torque motor (6) is mounted on the right end of the roller body (41) at the rear side, a resisting block (7) is mounted on the outer side of each of the roller bodies (41), a plurality of rollers (8) are rotatably mounted in the resisting block (7), a sliding seat (9) is arranged below the resisting block (7), a hydraulic seat (11) is connected to the lower end of the sliding seat (9), the hydraulic seat (11) is fixed on the top of the machine platform (1), the resisting block (7) is slidably mounted in the middle groove of the sliding seat (9) through a spring, a push block (10) is sealingly and slidably mounted in the vertical sliding groove on the top of the hydraulic seat (11), the top of the push block (10) is in abutting connection with the resisting block (7), an oil cavity (121) is formed below the hydraulic seat (11), a plug (122) is sealingly and slidably mounted in the oil cavity (121) through an electric push rod, and a lubricating assembly is arranged between the resisting block (7) and the push block (10). The lubricating assembly comprises an oil groove (131) and a push oil plug (136), the oil groove (131) is formed in the inner side of the resisting block (7), the push oil plug (136) is connected to the outer wall of the push block (10), the push oil plug (136) is sealingly and slidably connected to an oil inlet tank (135), the oil inlet tank (135) is mounted on the top of the sliding seat (9), the oil inlet tank (135) is provided with a first port (133) and a second port (134) on the upper end, the outer side of the oil inlet tank (135) is fixedly provided with an oil supplement tank (137), the first port (133) is in communication with the oil groove (131) through a one-way valve and a hose, the second port (134) is in communication with the oil supplement tank (137) through a one-way valve and a hose, and a plurality of oil outlet holes (132) are equidistantly formed in the arc-shaped side wall of the oil groove (131).

2. The metal scrap recycling device according to claim 1, characterized in that: The crusher (4) is a roller crusher, and the two roller bodies (41) are connected through gear engagement.

3. The metal scrap recycling device according to claim 1, characterized in that: The inner side of the upper end of the push block (10) is designed as an inclined surface, and the inclined surface structure of the upper end of the push block (10) corresponds to the outer inclined surface structure of the resisting block (7).

4. The metal scrap recycling device of claim 1, wherein: A rubber plug is arranged in the oil outlet hole (132), a cross-shaped port is formed in the surface of the rubber plug, and the rubber plug is used for spraying oil under a certain pressure.

5. The metal scrap recycling device of claim 1, wherein: The center of the arc-shaped structure of the oil groove (131) corresponds to the center of the structure of the roller body (41), and the arc-shaped structure of the oil groove (131) corresponds to the arc-shaped side wall of the resisting block (7).

6. The metal scrap recycling device of claim 1, wherein: The rollers (8) are equidistantly arranged on the outer side of the arc-shaped side wall of the resisting block (7), and the rollers (8) are used for rotating abutting with the roller body (41).

7. A method of using a metal scrap recycling device, suitable for use with any one of the metal scrap recycling devices of claims 1-6, comprising the steps of: The method comprises the following steps: S1: metal waste is put into the crusher (4) in the installation box (2) from the feeding hopper (3), the large torque motor (6) drives the relative rotation of the two sets of meshing connected roller bodies (41), and the metal waste is twisted; S2: when the metal waste has large hardness, the motor output torque increases, the torque sensor (5) transmits a signal to the controller, the electric push rod pushes the plug body (122) to compress the oil in the oil cavity (121), so that the push block (10) moves up, and the push block (10) cooperates with the abutting block (7) to provide supporting force corresponding to the torque to the roller body (41); S3: when the push block (10) moves up, the linkage of the lubricating assembly lubricates the inside roller (8) of the abutting block (7), reducing the friction between the roller body (41) and the roller (8); S4: when the metal waste has small hardness, the plug body (122) resets, the push block (10) drives the abutting block (7) to reset under the action of the spring, the push oil plug body (136) falls to suck and supplement the oil in the oil tank (135), and the device returns to the initial state.

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