Equipment and method for manufacturing steel pickaxe using scrap steel rails

Abstract

The present invention discloses a device for manufacturing a steel pick using scrap steel rails, comprising a feeding unit, a cutting unit, a cleaning unit, a transmission unit, a melting furnace, an injection molding unit and a grinding and polishing unit; the feeding unit is used to transport the recycled scrap steel rails to the cutting unit area, and the scrap steel rails are cut according to a preset length by the cutting unit; the cleaning unit is used to flush and clean the dust and part of the rust on the surface of the scrap steel rails after cutting; the transmission unit is used to transport the scrap steel rails after rust removal to the melting furnace to physically melt the steel to obtain molten iron with a certain carbon content; the injection molding unit is used to inject the molten iron into the mold, and obtain the preliminary model of the steel pick after cooling; the grinding and polishing unit is used to grind and polish the preliminary model of the steel pick to obtain a finished steel pick. The present invention makes the method and equipment for manufacturing a steel pick practical in more fields of making steel picks from scrap steel through the cleaning, melting and injection molding processes; and there is no much waste of steel.

Description

Technical Field

[0001] The invention belongs to the technical field of steel pick manufacturing, and in particular relates to a device and a method for manufacturing a steel pick by utilizing waste steel rails. Background Art

[0002] Steel picks have a wide range of uses and have a good market prospect. Some existing steel pick manufacturers use recycled waste rails to make steel picks. Using recycled waste rails to make steel picks can not only achieve the recycling of resources, but also reduce the cost of manufacturers producing steel picks, helping manufacturers to obtain more profits. When using recycled waste rails to make steel picks, due to the long-term idleness of the waste rails, there is a lot of rust and dust on the surface, and the waste rails need to be cleaned. The waste rails are heavy, and manual cleaning is inconvenient. There is also the possibility of cleaning omissions, which cannot meet the requirements of steel pick manufacturing precision.

[0003] The existing Chinese invention patent with application number 202010286011.6 discloses an automatic steel pick line marking device for train wheels, including a conveying bracket, a fixed bracket, a conveying component, a pen-holding marking component, a lifting component, a motor, a cam, a feeding component, a platform plate, a lifting rod, a fixed sleeve, a first spring, a lever, a platform support rod, a lever and a second spring; by automatically marking the train wheels, the traditional phenomenon of relying on manual operation for steel pick line marking of train wheels is changed. The operation is simple and quick, which improves the efficiency of steel pick line marking of train wheels and reduces the labor intensity of staff.

[0004] The defects of the existing patent are: 1. It does not take into account the steps for cleaning rust and dust from the train wheels, and cannot be widely used in the process production line for making steel picks from waste steel; 2. Although the equipment has a compact structure, there is a lot of residual material left over from the wheel cutting the steel pick line, resulting in a lot of steel waste, and a whole wheel cannot be fully utilized in the production of steel picks. Summary of the invention

[0005] In view of the problems that existing equipment for manufacturing steel picks wastes a lot of steel and cannot be applied to large-scale process production lines for manufacturing steel picks from waste steel, the present invention provides an equipment and method for manufacturing steel picks using waste steel rails.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0007] An apparatus for manufacturing a steel pick using scrap rails, comprising a feeding unit, a cutting unit, a cleaning unit, a transmission unit, a melting furnace, an injection molding unit and a grinding and polishing unit;

[0008] The loading unit is used to transport the recycled scrap rails to the cutting unit area, and the cutting unit cuts the scrap rails according to the preset length;

[0009] The cleaning unit is used to flush and clean the dust and some rust on the surface of the cut scrap rails;

[0010] The transmission unit is used to transmit the scrap rails after rust removal to the melting furnace for physical melting of the steel to obtain molten iron with a certain carbon content ratio;

[0011] Injection molding unit, used to inject molten iron into the mold and obtain a preliminary model of the steel pick after cooling;

[0012] The grinding and polishing unit is used for grinding and polishing the preliminary model of the steel pick to obtain a finished steel pick.

[0013] Furthermore, the cutting unit includes a cutting machine and a scrap rail fixed-length measuring device, the cutting machine includes a cutting body, a cutting blade, a rotating motor, a slider and a slide rail, and the scrap rail fixed-length measuring device consists of two infrared ranging sensors; the two infrared ranging sensors are respectively arranged on both sides of the cutting body, the cutting body is arranged on both sides of the transmission unit, a slide rail is opened on the surface of the cutting body, a slider is arranged on the slide rail, a rotating motor is installed on the slider, and the cutting blade is connected to the output shaft of the rotating motor.

[0014] Furthermore, the infrared ranging sensor at the front of the transmission direction of the transmission unit detects the entry of the scrap rail, and the infrared ranging sensor at the back of the transmission unit detects the scrap rail and stops immediately. The distance between the two infrared ranging sensors is equal to 0.5 times the length of the scrap rail to be cut, and the cutting blade runs on the median bisector between the two infrared ranging sensors.

[0015] Furthermore, an opening is provided on the transmission unit directly opposite to the slide rail in the vertical direction, and a waste collection box is provided at the bottom of the opening.

[0016] Furthermore, the cleaning unit includes a high-pressure water washing mechanism, a grabbing mechanism and a shot blasting machine, the high-pressure water washing mechanism includes a high-pressure water pipe and a nozzle, and the grabbing mechanism includes a first movable arm and a gripper; a filter is provided at the rear of the transmission unit, and a cleaning pool is provided at the bottom of the filter, and the cleaning pool pressurizes water through the high-pressure water pipe and transmits it to the nozzle;

[0017] The first movable arm includes a rotating rod, a telescopic cross rod and a telescopic longitudinal rod. The rotating rod is installed on one side of the filter screen. The upper end of the rotating rod is connected to a telescopic cross rod that is telescopically telescopic. One end of the telescopic cross rod is connected to the rotating rod, and the other end is connected to the top of the telescopic longitudinal rod. The bottom of the telescopic longitudinal rod is connected to a gripper, and the scrap steel rail cut on the transmission unit is grabbed onto the filter screen by the gripper, and then the dust and part of the rust on the scrap steel rail are cleaned by spraying high-pressure water through the nozzle;

[0018] The shot blasting machine is arranged at the tail end of the filter screen, and is used to deeply remove rust from the cleaned scrap rails, and at the same time, transmit the deeply removed rusted scrap rails to the melting furnace.

[0019] Furthermore, a conveyor belt at the rear end of the shot blasting machine conveys the scrap rails to a melting furnace, which melts the scrap rails at high temperature to obtain molten iron with a certain carbon content, and injects the molten iron into the injection molding unit through a pipeline.

[0020] Furthermore, the injection molding unit includes a rotating disk, a model groove, and a servo motor and a motor wrapping box at the bottom of the rotating disk; the rotating disk is arranged at the upper end of the motor wrapping box, and a model groove is opened on the upper surface of the rotating disk. The servo motor is connected to the bottom of the rotating disk through an output shaft. The model groove includes a steel pick groove and a steel pick connecting port. The steel pick groove has the same shape as the steel pick, and the steel pick connecting port is an isolation tube to prevent molten iron from flowing in.

[0021] Further, the grinding and polishing unit comprises a support table, a steel pick arm and a grinding and polishing arm;

[0022] A steel pick arm and a grinding and polishing arm are installed on the support table;

[0023] The steel pickaxe taking arm includes a second movable arm and a T-shaped piece, the second movable arm includes a first rotating column, a foldable cross bar and a telescopic rod, the first rotating column is installed on the upper end of the support table, the bottom of one end of the foldable cross bar is connected to the upper end of the first rotating column, the bottom of the other end of the foldable cross bar is connected to the upper end of the telescopic rod, and a rotating shaft is provided in the middle to control the foldable cross bar to rotate freely along the vertical plane; the bottom of the telescopic rod is connected to the upper end of the T-shaped piece, and the bottom diameter of the T-shaped piece is equal to the outer diameter of the isolation tube;

[0024] The grinding and polishing arm comprises a second rotating column, a connecting rod and a grinding wheel. The second rotating column is connected to the grinding wheel through the connecting rod, and the grinding wheel is connected to the bottom of one end of the connecting rod through a bearing.

[0025] Furthermore, an isolation tube removal mechanism is provided on one side of the injection molding unit, and the isolation tube removal mechanism includes a third movable arm with the same structure as the second movable arm and a T-shaped pipe fitting, the T-shaped pipe fitting is connected to one end of the third movable arm, and the other end of the third movable arm is fixedly connected to the ground, and the inner diameter of the bottom pipe opening of the T-shaped pipe fitting is equal to the outer diameter of the isolation tube.

[0026] A method for manufacturing a steel pickaxe using scrap steel rails comprises the following steps:

[0027] S1. Loading the recycled scrap rails to the cutting area;

[0028] S2, cutting the scrap rail to a fixed length;

[0029] S3, cleaning the dust and part of the rust on the surface of the cut scrap rail by high pressure flushing;

[0030] S4, quickly drying the cleaned scrap rails and completing the shot blasting and rust removal process;

[0031] S5, transferring the scrap rails that have been shot blasted and derusted to a melting furnace to obtain molten iron with a certain carbon content;

[0032] S6, injecting molten iron into the mold, and obtaining a preliminary model of a steel pick after cooling;

[0033] S7. After demoulding, the finished steel pick is polished and ground.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] By using the equipment and method for manufacturing a steel pick of the present invention, the waste rails are cleaned, melted, injection molded and polished to obtain a high-precision steel pick.

[0036] Through the cleaning, melting and injection molding processes, the method and equipment for manufacturing steel pickaxes are applicable to the field of making steel pickaxes from more waste steel materials; and there is no much waste of steel materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of a device for manufacturing a steel pickaxe using scrap steel rails according to the present invention;

[0038] Figure 2 This is a schematic diagram of the structure of a cutting unit of a device for manufacturing a steel pick using scrap steel rails according to the present invention;

[0039] Figure 3 It is a schematic diagram of the structure of a cleaning unit of a device for manufacturing a steel pick using scrap steel rails according to the present invention;

[0040] Figure 4 It is a schematic structural diagram of a melting furnace, an injection molding unit and a grinding and polishing unit of an apparatus for manufacturing a steel pick using scrap steel rails according to the present invention;

[0041] Figure 5 It is a schematic diagram of the top view of the rotating disk of the equipment for manufacturing steel picks using scrap steel rails according to the present invention;

[0042] Figure 6 The present invention is a flow chart of a method for manufacturing a steel pickaxe by utilizing scrap steel rails.

[0043] Markings in the figure: 1-feeding unit, 2-cutting unit, 21-cutting machine, 211-cutting body, 212-cutting blade, 213-rotating motor, 214-slider, 215-slide rail, 22-infrared ranging sensor, 3-cleaning unit, 31-high-pressure water washing mechanism, 311-high-pressure water pipe, 312-nozzle, 32-grabbing mechanism, 321-first movable arm, 3211-rotating rod, 3212-telescopic cross rod, 3213-telescopic longitudinal rod, 322-gripper, 33-shot blasting machine, 4-transmission unit, 5-melting furnace, 6-injection molding unit, 61-rotating disk, 62-mold slot, 621- Steel pick slot, 622-steel pick connection port, 63-servo motor, 64-motor packaging box, 7-grinding and polishing unit, 71-support table, 72-steel pick arm, 721-second movable arm, 7211-first rotating column, 7212-foldable cross bar, 7213-retractable rod, 722-T-shaped part, 73-grinding and polishing arm, 731-second rotating column, 732-connecting rod, 733-grinding wheel, 8-opening, 9-waste collection box, 10-filter screen, 11-cleaning tank, 14-pipeline, 15-isolation pipe taking mechanism, 151-third movable arm, 152-T-shaped pipe fitting, 16-rotating shaft. DETAILED DESCRIPTION

[0044] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0045] like Figure 1-5 As shown, a device for manufacturing steel picks using scrap rails includes a loading unit 1, a cutting unit 2, a cleaning unit 3, a transmission unit 4, a melting furnace 5, an injection molding unit 6 and a grinding and polishing unit 7.

[0046] The feeding unit 1 is used to transport the recycled scrap rails to the cutting unit 2 area, and the scrap rails are cut according to the preset length by the cutting unit 2; the cutting unit 2 includes a cutting machine 21 and a scrap rail fixed length measuring device, the cutting machine 21 includes a cutting body 211, a cutting blade 212, a rotating motor 213, a slider 214 and a slide rail 215, and the scrap rail fixed length measuring device is composed of two infrared distance measuring sensors 22; the two infrared distance measuring sensors 22 are respectively arranged on both sides of the cutting body 211, the cutting body 211 is arranged on both sides of the transmission unit 4, the surface of the cutting body 211 is provided with a slide rail 215, the slide rail 215 is provided with a slider 214, the slider 214 is installed with a rotating motor 213, and the output shaft of the rotating motor 213 is connected with a cutting blade 212. The two infrared distance measuring sensors 22 are arranged to ensure that the length of the cutting blade 212 is controllable, and the length of the scrap rail after cutting is easy to clean. The cutting blade 212 can slide freely with the slider 214 within the sliding range of the slide rail 215 to cut the scrap rail, and the setting position of the cutting body 211 provides a fixed-point cutting position for the cutting blade 212 .

[0047] The infrared distance measuring sensor 22 at the front of the transmission unit 4 in the transmission direction detects the entry of the scrap rail, and the infrared distance measuring sensor 22 at the rear of the transmission unit 4 in the transmission direction immediately stops when the scrap rail is detected. The distance between the two infrared distance measuring sensors 22 is equal to 0.5 times the length of the scrap rail to be cut, and the running track of the cutting blade 212 is on the median bisector between the two infrared distance measuring sensors 22. The two infrared distance measuring sensors 22 are mainly used to quantify the length of the scrap rail to be cut, that is, the distance between the infrared distance measuring sensor 22 at the rear of the transmission unit 4 in the transmission direction and the cutting blade 212; if the cutting blade 212 is in the middle, the distance between the two infrared distance measuring sensors 22 is equal to 0.5 times the length of the scrap rail to be cut, and the preset length of the scrap rail to be cut can be obtained by using the line segment ratio.

[0048] The transmission unit 4 facing the slide rail 215 in the vertical direction is provided with an opening 8, and a waste collection box 9 is provided at the bottom of the opening 8. The positions of the opening 8 and the waste collection box 9 are convenient for recovering iron filings or other dust generated by the cutting machine 21 cutting the waste rail.

[0049] The cleaning unit 3 is used for flushing and cleaning the dust and some rust on the surface of the cut scrap rail; the cleaning unit 3 includes a high-pressure water washing mechanism 31, a grabbing mechanism 32 and a shot blasting machine 33, the high-pressure water washing mechanism 31 includes a high-pressure water pipe 311 and a nozzle 312, and the grabbing mechanism 32 includes a first movable arm 321 and a gripper 322; a filter screen 10 is provided at the rear of the transmission unit 4, and a cleaning pool 11 is provided at the bottom of the filter screen 10, and the cleaning pool 11 pressurizes water through the high-pressure water pipe 311 and transmits it to the nozzle 312.

[0050] The first movable arm 321 includes a rotating rod 3211, a telescopic cross rod 3212 and a telescopic longitudinal rod 3213. The rotating rod 3211 is installed on one side of the filter screen 10. The upper end of the rotating rod 3211 is connected to a transversely telescopic cross rod 3212. One end of the telescopic cross rod 3212 is connected to the rotating rod 3211, and the other end is connected to the top of the telescopic longitudinal rod 3213. The bottom of the telescopic longitudinal rod 3213 is connected to a gripper 322. The scrap steel rail cut on the transmission unit 4 is gripped onto the filter screen 10 through the gripper 322, and then the dust and part of the rust on the scrap steel rail are cleaned by spraying high-pressure water through the nozzle 312.

[0051] The transmission unit 4 is used to transmit the rust-removed scrap rail to the melting furnace 5 for physical melting of the steel to obtain molten iron with a certain carbon content. The transmission unit 4 includes transmission before cleaning and transmission to the melting furnace 5 after cleaning.

[0052] The shot blasting machine 33 is arranged at the rear end of the filter screen 10 , and is used for deeply removing rust from the cleaned scrap rails, and at the same time, transferring the deeply removed rusted scrap rails to the melting furnace 5 .

[0053] The conveyor belt at the rear end of the shot blasting machine 33 conveys the scrap rails to the melting furnace 5 , and the melting furnace 5 melts the scrap rails at high temperature to obtain molten iron with a certain carbon content, and injects the molten iron into the injection molding unit 6 through the pipeline 14 .

[0054] The transmission unit 4 is used to transmit the rust-removed scrap rails to the melting furnace 5 for physical melting of steel to obtain molten iron with a certain carbon content. The advantage of using scrap rails to make steel picks is that the carbon content in the iron is certain, and it has been preferentially proportioned to be suitable for use as a steel pick, so there is no need to further adjust the carbon content of the iron in the melting furnace 5, thus saving the step of adjusting the carbon content.

[0055] The injection molding unit 6 is used to inject molten iron into the mold and obtain a preliminary model of a steel pick after cooling; the injection molding unit 6 includes a rotating disk 61, a model groove 62, a servo motor 63 and a motor wrapping box 64 at the bottom of the rotating disk 61; the rotating disk 61 is arranged at the upper end of the motor wrapping box 64, and a model groove 62 is provided on the upper surface of the rotating disk 61. The servo motor 63 is connected to the bottom of the rotating disk 61 through an output shaft. The model groove 62 includes a steel pick groove 621 and a steel pick connecting port 622. The steel pick groove 621 has the same shape as the steel pick, and the steel pick connecting port 622 is an isolation tube to prevent molten iron from flowing in. The setting of the servo motor 63 is convenient for controlling the rotation angle of the rotating disk 61 each time to cooperate with the injection of molten iron into the model groove 62.

[0056] One side of the injection molding unit 6 is also provided with an isolation tube taking mechanism 15, which includes a third movable arm 151 having the same structure as the second movable arm 721 and a T-shaped pipe fitting 152, the T-shaped pipe fitting 152 is connected to one end of the third movable arm 151, the other end of the third movable arm 151 is fixedly connected to the ground, and the inner diameter of the bottom pipe opening of the T-shaped pipe fitting 152 is equal to the outer diameter of the isolation tube. The purpose of the T-shaped pipe fitting 152 is to take out the isolation tube in the mold groove 62 that has been cooled after injection molding, and to further facilitate the insertion of the bottom of the T-shaped piece 722 of the grinding and polishing unit 7 into the steel pick connecting port 622. By setting the inner diameter of the bottom pipe opening of the T-shaped piece 722 equal to the outer diameter of the isolation tube, it is convenient to take out the entire steel pick for further grinding and polishing operations.

[0057] The grinding and polishing unit 7 is used to grind and polish the preliminary model of the steel pick to obtain a finished steel pick. The grinding and polishing unit 7 includes a support table 71, a steel pick arm 72 and a grinding and polishing arm 73; the steel pick arm 72 and the grinding and polishing arm 73 are installed on the support table 71; the steel pick arm 72 includes a second movable arm 721 and a T-shaped member 722, and the second movable arm 721 includes a first rotating column 7211, a foldable cross bar 7212 and a telescopic rod 7213, the first rotating column 7211 is installed on the upper end of the support table 71, the bottom of one end of the foldable cross bar 7212 is connected to the upper end of the first rotating column 7211, and the foldable cross bar 7212 is connected to the upper end of the first rotating column 7211. The bottom of the other end of 212 is connected to the upper end of the telescopic rod 7213, and a rotating shaft 16 is provided in the middle to control the foldable crossbar 7212 to rotate freely along the vertical plane; the bottom of the telescopic rod 7213 is connected to the upper end of the T-shaped member 722, and the bottom diameter of the T-shaped member 722 is equal to the outer diameter of the isolation tube; the grinding and polishing arm 73 includes a second rotating column 731, a connecting rod 732 and a grinding wheel 733, the second rotating column 731 is connected to the grinding wheel 733 through the connecting rod 732, and the grinding wheel 733 is connected to the bottom of one end of the connecting rod 732 through a bearing. The structural setting of the steel pick arm 72 is convenient for taking the steel pick from the model and freely moving or flipping the steel pick to cooperate with the grinding wheel 733 for grinding and polishing.

[0058] like Figure 6 As shown, a method for manufacturing a steel pick using scrap steel rails comprises the following steps: S1, feeding the recycled scrap steel rails to a cutting area; S2, cutting the scrap steel rails to a fixed length; S3, cleaning the dust and part of the rust on the surface of the cut scrap steel rails by high pressure flushing; S4, quickly drying the cleaned scrap steel rails and completing the shot blasting and rust removal process; S5, transferring the scrap steel rails that have completed the shot blasting and rust removal to a melting furnace 5 to obtain molten iron with a certain carbon content; S6, injecting the molten iron into a mold, and obtaining a preliminary model of the steel pick after cooling; S7, after demolding, grinding and polishing to obtain a finished steel pick.

[0059] Compared with the prior art, the present invention has the following beneficial effects:

[0060] By using the equipment and method for manufacturing a steel pick of the present invention, the waste rails are cleaned, melted, injection molded and polished to obtain a high-precision steel pick.

[0061] Through the cleaning, melting and injection molding processes, the method and equipment for manufacturing steel pickaxes are applicable to the field of making steel pickaxes from more waste steel materials; and there is no much waste of steel materials.

[0062] The above is a detailed introduction to the device and method for manufacturing a steel pickaxe using scrap rails provided by the present application. The description of the specific embodiment is only used to help understand the method and its core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A device for manufacturing steel picks using scrap rails, characterized in that: It comprises a loading unit (1), a cutting unit (2), a cleaning unit (3), a transmission unit (4), a melting furnace (5), an injection molding unit (6) and a grinding and polishing unit (7); The loading unit (1) is used to transport the recycled scrap steel rails to the cutting unit (2) area, and the cutting unit (2) cuts the scrap steel rails into preset lengths; The cleaning unit (3) is used to flush and clean the dust and some rust on the surface of the cut scrap rail; The transmission unit (4) is used to transmit the scrap rail after rust removal to the melting furnace (5) to physically melt the steel to obtain molten iron with a certain carbon content; An injection molding unit (6) is used to inject molten iron into a mold and obtain a preliminary model of a steel pick after cooling; The injection molding unit (6) comprises a mold groove (62), the mold groove (62) comprises a steel pick groove (621) and a steel pick connecting port (622), the steel pick groove (621) has the same appearance as the steel pick, and the steel pick connecting port (622) is an isolation pipe to prevent molten iron from flowing in; A grinding and polishing unit (7) is used to grind and polish the preliminary model of the steel pick to obtain a finished steel pick; The grinding and polishing unit (7) comprises a supporting table (71), a steel pick arm (72) and a grinding and polishing arm (73); A steel pick arm (72) and a grinding and polishing arm (73) are installed on the support table (71); The pickaxe arm (72) comprises a second movable arm (721) and a T-shaped member (722). The second movable arm (721) comprises a first rotating column (7211), a foldable cross bar (7212) and a telescopic rod (7213). The first rotating column (7211) is installed on the upper end of the support table (71). The bottom of one end of the foldable cross bar (7212) is connected to the upper end of the first rotating column (7211). The bottom of the other end of the foldable cross bar (7212) is connected to the upper end of the telescopic rod (7213). A rotating shaft (16) is provided in the middle to control the foldable cross bar (7212) to rotate freely along a vertical plane. The bottom of the telescopic rod (7213) is connected to the upper end of the T-shaped member (722). The bottom diameter of the T-shaped member (722) is equal to the outer diameter of the isolation tube. The grinding and polishing arm (73) comprises a second rotating column (731), a connecting rod (732) and a grinding wheel (733); the second rotating column (731) is connected to the grinding wheel (733) via the connecting rod (732); and the grinding wheel (733) is connected to the bottom of one end of the connecting rod (732) via a bearing.

2. The device for manufacturing steel pickaxes using scrap rails according to claim 1, characterized in that: The cutting unit (2) comprises a cutting machine (21) and a scrap rail fixed length measuring device. The cutting machine (21) comprises a cutting body (211), a cutting blade (212), a rotating motor (213), a sliding block (214) and a sliding rail (215). The scrap rail fixed length measuring device comprises two infrared distance measuring sensors (22); the two infrared distance measuring sensors (22) are respectively arranged on both sides of the cutting body (211), the cutting body (211) is arranged on both sides of the transmission unit (4), a sliding rail (215) is provided on the surface of the cutting body (211), a sliding block (214) is arranged on the sliding rail (215), a rotating motor (213) is installed on the sliding block (214), and the cutting blade (212) is connected to the output shaft of the rotating motor (213).

3. The device for manufacturing steel pickaxes using scrap rails according to claim 2, characterized in that: The infrared distance measuring sensor (22) located forward in the transmission direction of the transmission unit (4) detects the entry of the scrap steel rail, and the infrared distance measuring sensor (22) located backward in the transmission direction of the transmission unit (4) immediately stops upon detecting the scrap steel rail. The distance between the two infrared distance measuring sensors (22) is equal to 0.5 times the length of the scrap steel rail to be cut, and the running track of the cutting blade (212) is on the median bisector between the two infrared distance measuring sensors (22).

4. The device for manufacturing steel pickaxes using scrap rails according to claim 3 is characterized in that: The transmission unit (4) directly facing the slide rail (215) in the vertical direction is provided with an opening (8), and a waste collection box (9) is provided at the bottom of the opening (8).

5. The device for manufacturing steel pickaxes using scrap rails according to claim 4, characterized in that: The cleaning unit (3) comprises a high-pressure water washing mechanism (31), a grabbing mechanism (32) and a shot blasting machine (33); the high-pressure water washing mechanism (31) comprises a high-pressure water pipe (311) and a nozzle (312); the grabbing mechanism (32) comprises a first movable arm (321) and a gripper (322); a filter screen (10) is provided at the rear of the transmission unit (4); a cleaning pool (11) is provided at the bottom of the filter screen (10); the cleaning pool (11) pressurizes water through the high-pressure water pipe (311) and then transmits it to the nozzle (312); The first movable arm (321) comprises a rotating rod (3211), a telescopic cross rod (3212) and a telescopic longitudinal rod (3213); the rotating rod (3211) is installed on one side of the filter screen (10); the upper end of the rotating rod (3211) is connected to a transversely telescopic cross rod (3212); one end of the telescopic cross rod (3212) is connected to the rotating rod (3211), and the other end is connected to the top of the telescopic longitudinal rod (3213); the bottom of the telescopic longitudinal rod (3213) is connected to a gripper (322); the scrap steel rail cut from the transmission unit (4) is gripped onto the filter screen (10) by the gripper (322), and then the dust and part of the rust on the scrap steel rail are cleaned by spraying high-pressure water through the nozzle (312); The shot blasting machine (33) is arranged at the rear end of the filter screen (10) and is used to deeply remove rust from the cleaned scrap steel rails and at the same time transfer the deeply removed rusted scrap steel rails to the melting furnace (5).

6. The device for manufacturing steel pickaxes using scrap rails according to claim 5, characterized in that: The conveyor belt at the rear end of the shot blasting machine (33) conveys the scrap steel rails to the melting furnace (5), and the melting furnace (5) melts the scrap steel rails at high temperature to obtain molten iron with a certain carbon content, and injects the molten iron into the injection molding unit (6) through the pipeline (14).

7. The device for manufacturing steel pickaxes using scrap rails according to claim 6, characterized in that: The injection molding unit (6) also includes a rotating disk (61), a servo motor (63) at the bottom of the rotating disk (61), and a motor packaging box (64); the rotating disk (61) is arranged at the upper end of the motor packaging box (64), a mold groove (62) is opened on the upper surface of the rotating disk (61), and the servo motor (63) is connected to the bottom of the rotating disk (61) via an output shaft.

8. The device for manufacturing steel pickaxes using scrap steel rails according to claim 7, characterized in that: A device for removing an isolation tube (15) is also provided on one side of the injection molding unit (6). The device for removing an isolation tube (15) comprises a third movable arm (151) having the same structure as the second movable arm (721) and a T-shaped tube fitting (152). The T-shaped tube fitting (152) is connected to one end of the third movable arm (151), and the other end of the third movable arm (151) is fixedly connected to the ground. The inner diameter of the bottom pipe opening of the T-shaped tube fitting (152) is equal to the outer diameter of the isolation tube.

9. A method for manufacturing a steel pick using scrap steel rails, which uses the device for manufacturing a steel pick using scrap steel rails as claimed in any one of claims 1 to 8, characterized in that: Includes steps: S1. Loading the recycled scrap rails to the cutting area; S2, cutting the scrap rail to a fixed length; S3, cleaning the dust and part of the rust on the surface of the cut scrap rail by high pressure flushing; S4, quickly drying the cleaned scrap rails and completing the shot blasting and rust removal process; S5, transferring the scrap rails that have been shot blasted and derusted to a melting furnace (5) to obtain molten iron with a certain carbon content; S6, injecting molten iron into the mold, and obtaining a preliminary model of a steel pick after cooling; S7. After demoulding, the finished steel pick is polished and ground.

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