A waste cable recycling and processing system

Abstract

The present invention belongs to the field of cable recycling technology, and in particular, relates to a waste cable recycling and processing system. The waste cable recycling and processing system of the present invention includes a rolling module, a conveying sensing module, a cutting module, a grinding module and a screening module. The sensing unit is used to sense and obtain the cable diameter size at the corresponding position when the flattened cable is conveyed by the conveyor belt. The length size of the cable segment cut by the cutting unit is determined by the cable diameter size obtained by the corresponding sensing unit. The grinding module can separate the inner core metal of the cable segment from the cable sheath. During the processing, cable segments of different lengths can be cut according to the diameter size of the cable, so that the inner core metal and the cable sheath of the thin cable can be separated conveniently, and the energy consumption when cutting the thick cable can be saved. It can be used to process thick and thin cables, and can also save energy consumption. It has a wide range of applications and strong adaptability.

Description

Technical Field

[0001] The invention belongs to the technical field of cable recycling, and in particular relates to a waste cable recycling and processing system. Background Art

[0002] Currently, the main methods for recycling and processing cables include manual stripping, incineration, mechanical treatment, and chemical treatment. Manual stripping involves manual peeling, which is inefficient, costly, and creates a poor working environment for workers. Incineration is a traditional method that burns the plastic sheath of waste cables to recover the copper. However, the resulting smoke pollution is extremely serious. Furthermore, the copper wire surface is severely oxidized during the incineration process, reducing the metal recovery rate. Furthermore, the waste gas from the burning rubber not only pollutes the air but also seriously harms the human respiratory tract. A major drawback of chemical treatment is that the waste liquid produced by the chemical reaction cannot be treated, which has a significant impact on the environment and is therefore rarely used. Mechanical treatment uses a cable stripping machine, which still requires manual operation and is semi-mechanized, labor-intensive, inefficient, and only suitable for processing large-diameter cables, making it less suitable for use. Summary of the Invention

[0003] Based on this, it is necessary to provide a waste cable recycling and processing system to address the problems existing in the existing technology, so as to solve the problem that the existing technology can only process thick cables when processing waste cables by mechanical means, resulting in poor applicability.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A waste cable recycling and processing system, comprising:

[0006] Roller pressing module, used to flatten the cables;

[0007] The conveying sensing module includes a conveyor belt and a plurality of sensing units arranged above the conveyor belt. The plurality of sensing units are arranged in parallel perpendicular to the direction in which the cables enter. The sensing units are used to sense and obtain the cable diameter size at the corresponding position when the conveyor belt conveys the flattened cables.

[0008] The cutting module includes multiple independently rotating cutting units, which are used to cut the cable into cable segments. The multiple cutting units correspond to multiple sensing units one by one. The length of the cable segment cut by the cutting unit is determined by the cable diameter obtained by the corresponding sensing unit. The length of the cable segment is positively correlated with the cable diameter.

[0009] The grinding module has a grinding gap. When the cable segment passes through the grinding gap, the grinding module can separate the inner core metal of the cable segment from the cable sheath;

[0010] Screening module is used to separate the mixed cable sheath and inner core metal.

[0011] Furthermore, the cable diameter obtained by the sensing unit can adjust the size of the grinding gap.

[0012] Furthermore, the grinding module has two grinding surfaces, and the interval between the two grinding surfaces forms a grinding gap. The grinding gap has a maximum gap and a minimum gap. The size of the maximum gap is positively correlated with the maximum value of the cable diameter, and the size of the minimum gap is positively correlated with the minimum value of the cable diameter.

[0013] Furthermore, the sensing unit includes a sensing component and a distance sensor. When the cable passes through the sensing unit, it can push the sensing component and cause the elastic pushing component to jump. The distance sensor is used to sense the jumping of the sensing component.

[0014] Furthermore, the sensing component includes a pressure wheel, a pressure rod and a reset spring. The pressure wheel is fixed to the first end of the pressure rod, and the second end of the pressure rod is connected to the distance sensor. When the cable passes through the sensing unit, it can push the pressure wheel. The reset spring is used to reset the pressure wheel after the cable passes.

[0015] Furthermore, the cutting unit includes a cutting wheel for cutting the cable into cable segments and a drive motor for driving the cutting wheel to rotate. The length of the cable segment is negatively correlated with the rotational speed parameter of the cutting wheel. The rotational speed parameter of the cutting wheel is determined by the cable diameter size obtained by the corresponding sensing unit, and the rotational speed parameter of the cutting wheel is negatively correlated with the cable diameter size.

[0016] Furthermore, when the ratio of the number of all the rotational speed parameters of the cutting wheel that is less than the set rotational speed value to the total number exceeds the set ratio, the maximum clearance of the grinding clearance is reduced.

[0017] Furthermore, the grinding module includes a driving mechanism, an adjusting mechanism, a first grinding plate and a second grinding plate. The two grinding surfaces are respectively located on the first grinding plate and the second grinding plate. The driving mechanism is used to drive the first grinding plate to move back and forth relative to the second grinding plate for grinding. The adjusting mechanism is used to adjust the inclination angle of the first grinding plate relative to the second grinding plate according to the cable diameter size obtained by the conveying sensing module to adjust the grinding gap.

[0018] Furthermore, the adjustment mechanism includes a first adjustment rod and a second adjustment rod arranged at intervals, one end of the first adjustment rod is fixedly connected to the driving mechanism, and the other end is hinged to the first grinding plate, one end of the second adjustment rod is fixedly connected to the driving mechanism, and the other end is hinged to the first grinding plate, the first adjustment rod and the second adjustment rod can be extended and retracted to adjust the inclination angle of the first grinding plate relative to the second grinding plate.

[0019] Furthermore, the screening module adopts an air separation method for screening.

[0020] The beneficial effects of the present invention are as follows: when the waste cable recycling and processing system of the present invention is working, after the flattened cable enters the conveying sensing module in the form of a strip, multiple sensing units can obtain the cable diameter size at the corresponding position, and then send the size to the corresponding cutting unit. The cutting unit cuts the cable into cable segments, and the larger the cable diameter, the longer the cut cable segment. Since the thicker the cable, the more difficult it is to cut, and the thinner the cable, the more difficult it is to separate the inner core metal and the cable sheath, shortening the length of the thin cable segment is conducive to reducing the difficulty of separating the inner core metal and the cable sheath. Therefore, adopting this cutting method can not only reduce the waste of energy when cutting thick cables, but also make it easier to separate the inner core metal and the cable sheath of thin cables. After the cable segment is cut, it is sent to the grinding module, which separates the inner core metal of the cable segment from the cable sheath, and then the screening module separates the mixed cable sheath and inner core metal. In this way, the recycling of cables is completed, and during the processing, cable segments of different lengths can be cut according to the diameter of the cables, so that the inner core metal and the cable sheath of the thin cables can be separated conveniently, and the energy consumption when cutting the thick cables can be saved. It can be used to process thick and thin cables, and can also save energy consumption. It has a wide range of applications and strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of an embodiment of a waste cable recycling and processing system of the present invention.

[0022] Figure 2 for Figure 1 sectional view of .

[0023] Figure 3 for Figure 2 A local enlarged view of point A in the figure.

[0024] Figure 4 for Figure 1 Schematic diagram of the structure of the conveying sensing module.

[0025] Figure 5 for Figure 1 Schematic diagram of the structure of the cutting module.

[0026] in:

[0027] 100, conveying sensing module; 102, conveying housing; 104, conveyor belt; 106, cable support block;

[0028] 111, pressure wheel; 113, pressure rod; 114, annular boss; 115, return spring;

[0029] 120, distance sensor;

[0030] 200, cutting module; 201, cutting shell; 203, receiving plate;

[0031] 210, cutting wheel; 212, mounting leg; 214, driving gear; 216, transmission gear; 218, cutter;

[0032] 220, drive motor;

[0033] 300, negotiation module;

[0034] 301, frame; 303, moving channel;

[0035] 310, first grinding plate; 320, second grinding plate;

[0036] 331, grinding motor; 333, turntable; 335, drive plate;

[0037] 342. First adjustment rod; 344. Second adjustment rod. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like, indicating positions or relationships, are based on those shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or element referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention.

[0040] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] Refer to the following Figures 1 to 5 , describing the waste cable recycling and processing system of the present invention.

[0042] The waste cable recycling and processing system provided by an embodiment of the present invention includes a rolling module, a conveying and sensing module 100, a cutting module 200, a grinding module 300, and a screening module. The rolling module is used to flatten the cable. The conveying and sensing module 100 includes a conveyor belt 104 and multiple sensing units. The multiple sensing units are arranged in parallel along a direction perpendicular to the cable's entry direction. The sensing units are used to sense and obtain the cable diameter at corresponding positions when the conveyor belt 104 conveys the flattened cable. The cutting module 200 includes multiple independently rotating cutting units. The cutting units are used to cut the cable into cable segments. The multiple cutting units correspond to the multiple sensing units one-to-one. The length of the cable segment cut by the cutting unit is determined by the cable diameter obtained by the corresponding sensing unit. The length of the cable segment and the cable diameter are positively correlated. The grinding module 300 has a grinding gap. When the cable segment passes through the grinding gap, the grinding module 300 can separate the inner core metal of the cable segment from the cable sheath. The screening module is used to separate the mixed cable sheath and inner core metal.

[0043] Before entering the rolling module, the cables are first straightened out of the chaotic, mixed cables of different diameters into strips and separated from each other to facilitate subsequent processing. The straightened cables are then fed into the rolling module, which flattens the cables to prevent them from warping or bending, allowing the conveying sensing module 100 to accurately sense the cable diameter. The rolling module includes two coaxial rollers that rotate in opposite directions. A gap is defined between the outer circumferences of the two rollers for the cable to pass through. The cables are flattened as they pass through this gap. The spacing between the central axes of the two rollers can be adjusted to accommodate cables of different diameters.

[0044] After being straightened and flattened, the cable is in the form of a strip and fed into the conveying and sensing module 100. The cable extends in the same direction as the conveying direction of the conveyor belt 104. After entering the conveying and sensing module 100, multiple sensing units can obtain the cable diameter at the corresponding position and then send the size to the corresponding cutting unit. The cutting unit cuts the cable into cable segments. The larger the cable diameter, the longer the cable segment. Since thicker cables are more difficult to cut, and thinner cables are more difficult to separate, the length of thin cable segments helps to reduce the difficulty of separating the inner core metal and cable sheath. Therefore, this cutting method can not only reduce energy waste when cutting thick cables, but also make it easier to separate the inner core metal and cable sheath of thin cables. After the cable segments are cut, they are fed into the grinding module 300. The grinding module 300 separates the inner core metal of the cable segment from the cable sheath. Then, the mixed cable sheath and inner core metal are separated by screening module. In this way, the recycling of cables is completed, and during the processing, cable segments of different lengths can be cut according to the diameter of the cables, so that the inner core metal and the cable sheath of the thin cables can be separated conveniently, and the energy consumption when cutting the thick cables can be saved. That is, it can be used to process thick cables and thin cables, and can also save energy consumption. It has a wide range of applications and strong adaptability.

[0045] In addition, it should be noted that for all cut cable segments, the length of the cable segment is basically equivalent to its diameter, and there will be no overly long cable segments. This allows the inner core metal of the cable segment to be separated from the cable sheath more efficiently.

[0046] In one embodiment, the cable diameter obtained by the sensing unit can be used to adjust the size of the grinding gap. To further improve the grinding effect, the grinding gap size can be adjusted. Specifically, the grinding gap size is adjusted based on the cable diameter obtained by the sensing unit, so that the grinding gap can better adapt to cables of different diameters.

[0047] In one embodiment, the grinding module 300 has two grinding surfaces with grinding protrusions on each grinding surface. The grinding protrusions press against the cable segment and move horizontally back and forth, separating the inner core metal of the cable segment from the outer edge of the cable. The interval between the two grinding surfaces forms a grinding gap. Both grinding surfaces are arranged at an angle. The grinding gap has a maximum gap and a minimum gap. On the transportation path of the cable segment, the maximum gap is located in front of the minimum gap. When the cable segment enters the grinding surface, it first passes through the maximum gap. The size of the maximum gap is positively correlated with the maximum value of the cable diameter. The maximum gap is used to accommodate and grind the cable segment with the largest diameter. The size of the minimum gap is positively correlated with the minimum value of the cable diameter. The minimum gap is used to accommodate and grind the cable segment with the smallest diameter. The cable segment between the two extreme values ​​is ground by the area between the maximum gap and the minimum gap. That is, the maximum and minimum gaps of the grinding gap are determined by the maximum and minimum values ​​of the cable diameter.

[0048] It should be noted that the grinding process of the cable segment is gradual. Taking the thickest cable segment as an example, initially, only a small part of the thickest cable segment enters the maximum gap. Since the subsequent gap is smaller than the maximum gap, only when the cable sheath of this small part of the cable segment is separated can the subsequent part continue to enter the maximum gap until the entire cable segment is completely ground.

[0049] Since the two grinding surfaces are arranged at an angle, when the cable segment enters the grinding gap, the cable segment with a smaller diameter will automatically slide down and be stuck in a position that matches its diameter. The two grinding surfaces are then reciprocated and offset for grinding while keeping the size of the grinding gap unchanged. After the set grinding time, the inner core metal of the cable segment is separated from the cable sheath, and then the two grinding surfaces are separated, and the inner core metal and the cable sheath are transferred to the screening module.

[0050] It should be noted that the maximum gap of the grinding gap is slightly smaller than the diameter of the thickest cable segment, and the minimum gap of the grinding gap is also slightly smaller than the diameter of the thickest cable segment, so that the grinding surface can separate the cable sheath and inner core metal of the cable segment. At the same time, in order to enable the cable segment to smoothly enter the grinding gap, the spacing between the grinding surfaces is first expanded before the grinding surfaces work, and the maximum value of the spacing is slightly larger than the maximum gap of the grinding gap. When a part of the cable segment enters the grinding gap, the grinding gap is adjusted to the maximum gap and minimum gap determined according to the diameter size of the cable segment.

[0051] In addition, during operation, the waste cable recycling and processing system of this embodiment adopts batch and intermittent feeding. The next batch of cable segments is input into the grinding module 300 only after the current batch of cable segments in the grinding module 300 is ground and transferred to the screening module.

[0052] In one embodiment, the sensing unit includes a sensing component and a distance sensor 120. When a cable passes through the sensing unit, it pushes against the sensing component, causing the elastic pushing component to vibrate. The distance sensor 120 is used to sense this vibration. The sensing component and distance sensor 120 can more accurately determine the diameter of the cable at the corresponding location. Each sensing unit includes two sets of sensing components and corresponding distance sensors 120, spaced apart in the front-to-back direction. The settings obtained by the two distance sensors 120 can be mutually corrected.

[0053] In one embodiment, the sensing component includes a pressure wheel 111, a pressure rod 113 and a reset spring 115, and the conveying sensing module 100 also includes a conveying shell 102, and the conveying shell 102 is provided with a through hole for the pressure rod 113 to pass through. The first end of the pressure rod 113 passes through the through hole and extends into the conveying channel, the pressure wheel 111 is fixed to the first end of the pressure rod 113, and the second end of the pressure rod 113 is located outside the conveying shell 102. The reset spring 115 is located outside the conveying shell 102 and is sleeved on the pressure rod 113. The second end of the pressure rod 113 has an annular boss 114 for limiting the reset spring 115. The annular boss 114 is connected to the distance sensor 120, and the distance sensor 120 can sense the displacement of the annular boss 114. In this embodiment, the return spring 115 is a tension spring. When the return spring is in its natural state, the pressure wheel 111 contacts the conveyor belt 104. When the cable passes through the sensing unit, the cable can push the pressure wheel 111, causing the pressure wheel 111 to rise, and then the pressure rod 113 and its annular boss 114 are also raised. The distance sensor 120 can record the displacement data of the annular boss 114. This displacement data is the diameter of the cable passing through the current sensing unit. During this process, the return spring is stretched. When the cable has completely passed, the return spring 115 resets the pressure wheel 111. Each sensing unit includes two sets of spaced-apart sensing components and corresponding distance sensors 120 in the front-to-back direction. The settings obtained by the two distance sensors 120 can be mutually corrected. At the same time, the corresponding two pressure wheels 111 can fix the cable. In other embodiments, the return spring can also be a compression spring. A guide cylinder is provided on the conveying shell, and the return spring is provided in the guide cylinder. The second end of the pressure rod is also located in the guide cylinder and below the return spring. When the pressure rod rises, the return spring is compressed. When the cable passes completely, the return spring resets the pressure wheel.

[0054] It should be noted that in actual operation, when the width of the pressure wheel 111 is large, there may be multiple cables passing through the position corresponding to each sensing unit. In this case, the cable diameter sensed by the sensing unit is the diameter of the thickest cable among the multiple cables. Of course, the more sensing units there are and the smaller the width of the pressure wheel 111, the higher the sensing accuracy of the sensing units, resulting in fewer cables being sensed by each sensing unit, which is conducive to improving cutting accuracy.

[0055] In one embodiment, the cutting unit includes a cutting wheel 210 for cutting the cable into cable segments and a drive motor 220 for driving the cutting wheel 210 to rotate. The length of the cable segment is negatively correlated with the rotation speed parameter of the cutting wheel 210. The rotation speed parameter of the cutting wheel 210 is determined by the cable diameter size obtained by the corresponding sensing unit, and the rotation speed parameter of the cutting wheel 210 is negatively correlated with the cable diameter size. Specifically, the cutting unit also includes a mounting leg 212, a driving gear 214 and a transmission gear 216 that mesh with each other, the cutting module 200 also includes a cutting shell 201 and a receiving plate 203, the receiving plate 203 has an inclined receiving slope, the mounting leg 212 is arranged in the cutting shell 201, the driving motor 220 is fixed on the mounting leg 212, the cutting wheel 210 and the transmission gear 216 are coaxially arranged, the output shaft of the driving motor 220 can drive the driving gear 214 to rotate, and the driving gear 214 drives the cutting wheel 210 to rotate through the transmission gear 216, and the outer peripheral surface of the cutting wheel 210 is provided with spaced cutters 218, the conveyor belt 10 4 is provided with a cable support block 106 at the rear side. When the end of the cable is conveyed to the cable support block 106, the cutter 218 can cut the cable into cable segments. The cable segments are placed on the receiving plate 203. The faster the rotation speed of the cutting wheel 210, the shorter the length of the cut cable segment. The rotation speed of the cutting wheel 210 is determined by the cable diameter size obtained by the corresponding sensing unit. The larger the cable diameter size, the slower the rotation speed of the cutting wheel 210, that is, the thicker the cable, the longer the length of the cut cable segment, and the thinner the cable, the shorter the length of the cut cable segment. This can facilitate the separation of the inner core metal and the cable sheath of the thin cable, and can also save energy consumption when cutting thick cables.

[0056] It should be noted that the minimum distance between the blade of the cutter 218 and the outer circumference of the cutting wheel 210 is the maximum length of the cable segment that the cutter 218 can cut. By replacing different cutters 218, the maximum length of the cable segment that the cutter 218 can cut can be changed. Because each cutting wheel 210 has multiple cutters 218, the cutters 218 are allowed to cool down for a period of time after each cutting action. This reduces the risk of heating from repeated cutting and wear.

[0057] In other embodiments, the cutting unit can also be a vertical cutting knife that moves back and forth in the vertical direction at a set frequency. When the vertical cutting knife moves downward, it can cut the cable. By adjusting the frequency of the reciprocating movement of the vertical cutting knife, the length of the cut cable segment can be controlled, and the higher the frequency, the smaller the length of the cut cable segment.

[0058] In one embodiment, when the ratio of all speed parameters of the cutting wheel 210 that are less than a set speed value to the total number exceeds a set ratio, the maximum size of the grinding gap is reduced. When the proportion of thick cables is large, the maximum size of the grinding gap is further reduced to improve the grinding efficiency of thick cables. Because the speed parameter of the cutting wheel 210 is directly related to the cable diameter obtained by the sensing unit, a ratio is set. When the ratio of the number of speed parameters that are less than the set speed value to the total number exceeds the set ratio, it indicates that the proportion of thick cables is too large. In this case, after the maximum and minimum gaps are obtained using the cable diameter obtained by the sensing unit, the maximum gap is further reduced based on this.

[0059] In one embodiment, the grinding module 300 includes a driving mechanism, an adjusting mechanism, a first grinding plate 310 and a second grinding plate 320, and the two grinding surfaces are respectively located on the first grinding plate 310 and the second grinding plate 320. The driving mechanism is used to drive the first grinding plate 310 to move back and forth relative to the second grinding plate 320 for grinding. The adjusting mechanism is used to adjust the inclination angle of the first grinding plate 310 relative to the second grinding plate 320 according to the cable diameter size obtained by the conveying sensing module 100 to adjust the grinding gap.

[0060] Specifically, the grinding module 300 also includes a frame 301, and the driving mechanism includes a grinding motor 331, a turntable 333, and a driving plate 335. A moving channel 303 is provided on the frame 301. The width of the moving channel 303 is greater than the width of the driving plate 335. Two guide long grooves extending along the width direction of the moving channel 303 are provided in the moving channel 303, and two guide pins corresponding to the guide long grooves are provided on the driving plate 335, so that the driving plate 335 can only move back and forth in the moving channel 303 along the width direction of the moving channel 303. The grinding motor 331 is fixed on the frame 301, and the output shaft of the grinding motor 331 extends into the moving channel 303. The turntable 333 is coaxially fixedly connected to the output shaft of the grinding motor 331. A transmission pin is eccentrically provided on the turntable 333. A connecting rod is hinged between the drive plate 335 and the transmission pin. The grinding motor 331 can drive the turntable 333 to rotate, and then the turntable 333 drives the connecting rod to swing through the transmission pin, and the connecting rod drives the drive plate 335 to move back and forth in the moving channel 303. The adjustment mechanism is fixed on On the lower bottom surface of the driving plate 335, the grinding mechanism is connected to the first grinding plate 310, and the second grinding plate 320 is arranged on the frame 301 and is located below the first grinding plate 310. Then, the driving plate 335 can drive the first grinding plate 310 to move back and forth relative to the second grinding plate 320 through the adjustment mechanism. A vibration motor is provided on the frame 301 to enable the second grinding plate 320 to vibrate. The vibration of the second grinding plate 320 can facilitate the material on the second grinding plate 320 to slide down along the second grinding surface.

[0061] In one embodiment, the adjustment mechanism includes a first adjustment rod 342 and a second adjustment rod 344 spaced apart. One end of the first adjustment rod 342 is fixedly connected to the drive plate 335 of the drive mechanism, and the other end is hinged to the first grinding plate 310 via a ball joint. One end of the second adjustment rod 344 is fixedly connected to the drive plate 335 of the drive mechanism, and the other end is hinged to the first grinding plate 310 via a ball joint. The first adjustment rod 342 and the second adjustment rod 344 are capable of extending and retracting to adjust the inclination angle of the first grinding plate 310 relative to the second grinding plate 320. The first adjustment rod 342 and the second adjustment rod 344 are both electric push rods that automatically extend and retract based on the cable diameter obtained by the conveying sensing module 100 to adjust the maximum and minimum clearances of the grinding gap to desired values. In other embodiments, the first and second adjustment rods may also be hydraulically retractable rods.

[0062] In one embodiment, the screening module performs screening by air separation. Specifically, the screening module can be a gravity air separator, which separates the mixed inner core metal and cable sheath by using the gravity air separator.

[0063] The working process of the waste cable recycling and processing system of this embodiment is as follows:

[0064] First, the messy and mixed cables of different diameters are straightened out to make them strip-shaped. Cables of different diameters are separated from each other to facilitate subsequent processing. The straightened cables are sent to the roller pressing module, which flattens the cables to prevent them from warping.

[0065] The straightened and flattened cables are in strip shape and fed into the conveying sensing module 100, and the extension direction of the cables is the same as the conveying direction of the conveyor belt 104. After the cables enter the conveying sensing module 100, during the process of being conveyed by the conveyor belt 104, the cables at different positions will lift the pressure wheels 111 at the corresponding positions, and the pressure rods 113 and the annular boss 114 will be lifted. Then the distance sensor 120 records the displacement data of the annular boss 114, and then obtains the diameter size of the cable passing through the current pressure wheel 111.

[0066] Multiple sensing units transmit the acquired cable dimensions to the corresponding cutting unit's drive motor 220. The drive motor 220 then adjusts its rotational speed based on the cable diameter, thereby adjusting the corresponding rotational speed of the cutting wheel 210. The thicker the cable, the slower the corresponding cutting wheel 210 rotates, and the longer the cable segment is cut, saving more energy when cutting thick cables. The thinner the cable, the faster the corresponding cutting wheel 210 rotates, and the shorter the cable segment is cut, making it easier to separate the inner core metal and the cable sheath. The cut cable segment lands on the receiving slope of the receiving plate 203 and slides toward the grinding gap of the grinding module 300.

[0067] The multiple sensing units also send the obtained cable diameter size to the grinding module 300, and the grinding module 300 obtains the maximum gap and the minimum gap of the grinding gap based on this. In this process, it is determined whether the ratio of the number of speed values ​​less than the set speed value to the total number exceeds the set ratio. If it exceeds, the maximum gap is further reduced to obtain the final maximum gap value.

[0068] Next, the first adjustment rod 342 and the second adjustment rod 344 are extended and retracted to adjust the maximum and minimum clearances of the grinding gap to the desired position. Before the cable segment enters the grinding gap, the opening of the grinding gap is briefly enlarged to facilitate entry of the cable. After a portion of the cable segment enters the grinding gap, the grinding gap is adjusted to the maximum and minimum clearances determined by the diameter of the cable segment.

[0069] After the cable is in place, the grinding motor 331 is started to move the driving plate 335 back and forth, thereby causing the first grinding plate 310 to move back and forth relative to the second grinding plate 320, separating the inner core metal of the cable segment from the cable sheath.

[0070] After the grinding motor 331 works for a set time (the set time can be predetermined based on the test), it is determined that the inner core metal and the cable sheath in the cable segment have been completely separated, and then the first adjustment rod 342 and the second adjustment rod 344 are controlled to retract, so that the first grinding plate 310 is away from the second grinding plate 320, thereby facilitating the transfer of the mixed inner core metal and cable sheath on the second grinding plate 320 to the screening mechanism, and then the screening mechanism separates the mixed inner core metal and cable sheath to facilitate subsequent recycling.

[0071] During the processing process, the waste cable recycling and processing system of the present invention can cut cable segments of different lengths according to the diameter of the cable, thereby facilitating the separation of the inner core metal and the cable outer sheath of the thin cable, while also saving energy consumption when cutting the thick cable. That is, it can be used to process thick and thin cables and can also save energy consumption. It has a wide range of applications and strong adaptability.

[0072] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A waste cable recycling and processing system, characterized in that: include: Roller pressing module, used to flatten the cables; The conveying sensing module includes a conveyor belt and a plurality of sensing units arranged above the conveyor belt. The plurality of sensing units are arranged in parallel perpendicular to the direction in which the cables enter. The sensing units are used to sense and obtain the cable diameter size at the corresponding position when the conveyor belt conveys the flattened cables. The cutting module includes a plurality of independently rotating cutting units, each of which is used to cut the cable into cable segments. The plurality of cutting units corresponds to a plurality of sensing units on a one-to-one basis. The length of the cable segment cut by the cutting unit is determined by the cable diameter obtained by the corresponding sensing unit, and the length of the cable segment is positively correlated with the cable diameter. The cutting unit includes a cutting wheel for cutting the cable into cable segments and a driving motor for driving the cutting wheel to rotate. The length of the cable segment is negatively correlated with a speed parameter of the cutting wheel, and the speed parameter of the cutting wheel is determined by the cable diameter obtained by the corresponding sensing unit, and the speed parameter of the cutting wheel is negatively correlated with the cable diameter. When the ratio of the number of speed parameters of the cutting wheel that is less than a set speed value to the total number exceeds a set ratio, the maximum clearance of the grinding gap is reduced. The grinding module has a grinding gap. When the cable segment passes through the grinding gap, the grinding module can separate the inner core metal of the cable segment from the cable outer sheath. The grinding module has two grinding surfaces, both of which are inclined. The gap between the two grinding surfaces forms a grinding gap. The grinding gap has a maximum gap and a minimum gap. On the transportation path of the cable segment, the maximum gap is located in front of the minimum gap. The size of the maximum gap is positively correlated with the maximum value of the cable diameter, and the size of the minimum gap is positively correlated with the minimum value of the cable diameter. The maximum gap of the grinding gap is slightly smaller than the diameter of the thickest cable segment, and the minimum gap of the grinding gap is also slightly smaller than the diameter of the thickest cable segment. The cable diameter size obtained by the sensing unit can adjust the size of the grinding gap. Screening module is used to separate the mixed cable sheath and inner core metal.

2. The waste cable recycling and processing system according to claim 1, characterized in that: The sensing unit includes a sensing component and a distance sensor. When the cable passes through the sensing unit, it can push the sensing component and cause the elastic pushing component to jump. The distance sensor is used to sense the jumping of the sensing component.

3. The waste cable recycling and processing system according to claim 2, characterized in that: The sensing assembly includes a pressure wheel, a pressure rod and a reset spring. The pressure wheel is fixed to the first end of the pressure rod, and the second end of the pressure rod is connected to the distance sensor. When the cable passes through the sensing unit, it can push the pressure wheel. The reset spring is used to reset the pressure wheel after the cable passes.

4. The waste cable recycling and processing system according to claim 1, characterized in that: The grinding module includes a driving mechanism, an adjusting mechanism, a first grinding plate and a second grinding plate. The two grinding surfaces are respectively located on the first grinding plate and the second grinding plate. The driving mechanism is used to drive the first grinding plate to move back and forth relative to the second grinding plate for grinding. The adjusting mechanism is used to adjust the inclination angle of the first grinding plate relative to the second grinding plate according to the cable diameter size obtained by the conveying sensing module to adjust the grinding gap.

5. The waste cable recycling and processing system according to claim 4, characterized in that: The adjustment mechanism includes a first adjustment rod and a second adjustment rod arranged at intervals. One end of the first adjustment rod is fixedly connected to the driving mechanism, and the other end is hinged to the first grinding plate. One end of the second adjustment rod is fixedly connected to the driving mechanism, and the other end is hinged to the first grinding plate. The first adjustment rod and the second adjustment rod can be extended and retracted to adjust the inclination angle of the first grinding plate relative to the second grinding plate.

6. The waste cable recycling and processing system according to claim 1, characterized in that: The screening module uses air separation to perform screening.

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