Automatic detection device for graphite electrode

Abstract

The present invention provides an automatic detection device for graphite electrodes, which relates to the technical field of graphite electrodes and includes a stepping conveying part and a measuring component. The measuring component includes a support, a lifting seat and an adjustment plate. The lifting seat is movably arranged on the inner side of the support, and the adjustment plate is arranged at one end of the lifting seat. Clamping plates are movably provided on both sides of one end of the adjustment plate. An insulating turntable is rotatably provided on the inner side of the front clamping plate, and a conductive turntable is rotatably provided on the inner side of the rear clamping plate through a conductive slip ring. The present invention clamps the graphite electrode and connects it to electricity through the insulating turntable and the conductive turntable in the two groups of clamping plates, detects the voltage difference between two points on the graphite electrode through two groups of voltage detection parts, calculates the local resistance of the graphite electrode, and can rotate the graphite electrode to switch the detection surface through the rotation of the insulating turntable. The two groups of voltage detection parts can move on the L-shaped bracket to change the detection point and distance, facilitate multi-directional comprehensive detection, and make the test results more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of graphite electrodes, in particular to an automatic detection device for graphite electrodes. Background Art

[0002] Graphite electrode refers to a high-temperature resistant graphite conductive material made of petroleum coke or pitch coke as aggregate and coal tar as binder, which is processed through calcination, crushing and grinding, batching, kneading, molding, roasting, impregnation, graphitization and mechanical processing. It is called artificial graphite electrode (abbreviated as graphite electrode) to distinguish it from natural graphite electrode made from natural graphite.

[0003] After production, graphite electrodes usually need to be subjected to resistance testing to determine their overall conductive properties. In the prior art, after the graphite electrodes are made conductive, resistance measurements are generally performed manually at two randomly selected locations on the graphite electrodes, and the difference is calculated to obtain the resistance variable and judge their performance. The electrode rods are large, making it inconvenient to flip them during manual testing, making comprehensive testing difficult and also posing a significant safety hazard. Therefore, the present invention proposes an automatic detection device for graphite electrodes to address the problems existing in the prior art. Summary of the Invention

[0004] In response to the above problems, the present invention proposes an automatic detection device for graphite electrodes, which facilitates comprehensive detection from all directions and provides more accurate test results.

[0005] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: an automatic detection device for graphite electrodes, including a stepping conveying portion and a measuring assembly, the measuring assembly including a support, a lifting seat and an adjustment plate, the lifting seat being movably arranged on the inner side of the support, the adjustment plate being arranged at one end of the lifting seat, and clamping plates being movably provided on both sides of one end of the adjustment plate, an insulating turntable being rotatably provided on the inner side of the front clamping plate, and a conductive turntable being rotatably provided on the inner side of the rear clamping plate via a conductive slip ring;

[0006] A first slide bar is provided above the clamping plate on the rear side, and a slider is movably provided on the first slide bar, an L-shaped bracket is provided on the slider, and a voltage detection part is movably provided on the L-shaped bracket, and two groups of voltage detection parts are provided.

[0007] A further improvement is that the voltage detection part includes a sliding sleeve, an electric telescopic rod and a voltage measuring head, the sliding sleeve is movably mounted on an L-shaped bracket, the electric telescopic rod is arranged below the sliding sleeve, and the voltage measuring head is arranged at the output end of the electric telescopic rod.

[0008] A further improvement is that an inner cavity is provided inside the support, and an air pressure cylinder is provided inside the inner cavity, both ends of the lifting seat are provided with support blocks extending into the inner cavity, and the output end of the air pressure cylinder is connected to the support block.

[0009] A further improvement is that both ends of the adjustment plate are provided with through grooves, and second sliding rods are provided on the upper and lower sides of one side of the clamping plate. One end of the two groups of clamping plates passes through the two groups of through grooves and is movably connected to the second sliding rods.

[0010] Further improvements are: a bidirectional screw rod is provided for internal rotation of the two groups of through slots, and the two ends of the bidirectional screw rod respectively pass through the two groups of clamping plates and are threadedly adapted; a first motor is provided on one side of the adjustment plate, and the output end of the first motor is connected to the bidirectional screw rod.

[0011] A further improvement is that a screw rod is provided on the clamping plate on the rear side through a shaft plate, and the screw rod passes through the slider and is threadedly adapted. A first motor is provided at one end of the shaft plate, and the output end of the first motor is connected to the screw rod.

[0012] A further improvement is that a second motor is provided on one side of the sliding sleeve, and a roller is provided at the output end of the second motor, and the roller is in contact with one side of the L-shaped bracket.

[0013] A further improvement is that: the insulating turntable and the conductive turntable are each provided with at least two groups, a positioning column is provided on the inner side of the insulating turntable, a second motor and a pulley are provided on one side of the front clamping plate, the output end of the second motor is connected to one group of the insulating turntables, the pulley is connected to the other group of the insulating turntables, and the output end of the second motor is connected to the pulley through a belt.

[0014] A further improvement is that the stepping conveying part includes a conveying frame and conveying rollers, conveying rollers are rotatably provided on both sides of the conveying frame, and a stepping motor is provided at one end of the conveying frame, the output end of the stepping motor is connected to a group of conveying rollers, a conveying belt is wound around the conveying rollers, and a positioning groove is provided on the conveying belt, and the positioning groove is adapted to the graphite electrode.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention clamps the graphite electrode and connects it to electricity through the insulating turntable and the conductive turntable in two sets of clamping plates. The voltage difference between two points on the graphite electrode is detected by two sets of voltage detection parts, and the local resistance of the graphite electrode is calculated. By rotating the insulating turntable, the graphite electrode can be rotated to switch the detection surface. The two sets of voltage detection parts can be moved on the L-shaped bracket to change the detection point and distance, which facilitates comprehensive multi-directional detection and more accurate test results.

[0017] 2. The present invention transports the graphite electrode through the stepping conveyor throughout the entire process, and after being measured by the measuring component, it is placed on the stepping conveyor for transportation. There is no need for manual operation and no safety hazards.

[0018] 3. The present invention uses at least two groups of insulating turntables and conductive turntables to conveniently clamp at least two groups of graphite electrodes at one time. The L-shaped bracket moves along the first slide bar to conveniently change the position to detect the two groups of graphite electrodes, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the present invention;

[0020] Figure 2 is a schematic diagram of a measurement component of the present invention;

[0021] Figure 3 Schematic diagram of the voltage detection unit of the present invention;

[0022] Figure 4 This is a schematic diagram of the interior of the support of the present invention;

[0023] Figure 5 It is a schematic diagram of the positioning column of the present invention;

[0024] Figure 6 Schematic diagram of the stepping conveying part of the present invention.

[0025] Among them: 1. stepping conveyor; 2. support; 3. lifting seat; 4. adjustment plate; 5. clamping plate; 6. insulating turntable; 7. conductive slip ring; 8. conductive turntable; 9. first slide bar; 10. L-shaped bracket; 11. sliding sleeve; 12. electric telescopic rod; 13. voltage measuring head; 14. inner cavity; 15. pneumatic cylinder; 16. through groove; 17. second slide bar; 18. bidirectional screw rod; 19. first motor; 20. screw rod; 21. first motor; 22. second motor; 23. roller; 24. positioning column; 25. second motor; 26. pulley; 27. belt; 28. conveyor frame; 29. stepping motor; 30. conveyor belt; 31. positioning groove. DETAILED DESCRIPTION

[0026] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the examples. The examples are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0027] Example 1

[0028] according to Figure 1 、 2As shown in Figures 3, 4, and 5, this embodiment proposes an automatic detection device for graphite electrodes, comprising a stepping conveying portion 1 and a measuring assembly, wherein the measuring assembly comprises a support 2, a lifting seat 3, and an adjustment plate 4, wherein the lifting seat 3 is movably arranged on the inner side of the support 2, the adjustment plate 4 is arranged at one end of the lifting seat 3, and clamping plates 5 are movably provided on both sides of one end of the adjustment plate 4, an insulating turntable 6 is rotatably provided on the inner side of the clamping plate 5 on the front side, and a conductive turntable 8 is rotatably provided on the inner side of the clamping plate 5 on the rear side through a conductive slip ring 7;

[0029] A first slide bar 9 is provided above the clamping plate 5 on the rear side, and a slider is movably provided on the first slide bar 9, an L-shaped bracket 10 is provided on the slider, and a voltage detection part is movably provided on the L-shaped bracket 10, and two groups of voltage detection parts are provided. During use, the stepping conveyor 1 conveys the graphite electrode to the bottom of the measuring assembly, the lifting seat 3 is lowered, and the two sets of clamping plates 5 move relative to each other to clamp the graphite electrode. The graphite electrode is clamped between the insulating turntable 6 and the conductive turntable 8. The conductive slip ring 7 is connected to the conductive turntable 8 to conduct electricity, thereby connecting the graphite electrode to electricity. The voltage difference between the two points on the graphite electrode is detected by the two sets of voltage detection parts, and then the local resistance of the graphite electrode is calculated according to the distance between the two sets of voltage detection parts. The insulating turntable 6 rotates the graphite electrode to switch the detection surface. The two sets of voltage detection parts move on the L-shaped bracket 10 to change the detection point and distance, and perform comprehensive detection in all directions. After detection, the graphite electrode is placed on the stepping conveyor 1 and transported away. The clamping of the two sets of clamping plates 5 is suitable for graphite electrodes of different lengths.

[0030] The voltage detection unit includes a sliding sleeve 11, an electric telescopic rod 12, and a voltage measuring head 13. The sliding sleeve 11 is movably mounted on an L-shaped bracket 10, the electric telescopic rod 12 is positioned below the sliding sleeve 11, and the voltage measuring head 13 is located at the output end of the electric telescopic rod 12. During operation, the conductive slip ring 7 is connected to the conductive turntable 8 to conduct electricity, thereby connecting the graphite electrode. The two sets of voltage detection units detect the voltage difference between two points on the graphite electrode. Specifically, the electric telescopic rod 12 pushes the voltage measuring head 13 downward, contacting the graphite electrode for detection. The local resistance of the graphite electrode is then calculated based on the distance between the two sets of voltage detection units.

[0031] The support 2 is provided with an inner cavity 14, and a pneumatic cylinder 15 is located within the inner cavity 14. Both ends of the lifting base 3 are provided with support blocks that extend into the inner cavity 14, and the output end of the pneumatic cylinder 15 is connected to the support blocks. During use, the stepping conveyor 1 conveys the graphite electrode to the bottom of the measurement assembly. The pneumatic cylinder 15 pushes the support blocks downward, causing the lifting base 3 to lower. The two sets of clamping plates 5 move relative to each other to clamp the graphite electrode. The graphite electrode is then clamped between the insulating turntable 6 and the conductive turntable 8. The lifting base 3 then rises, raising the graphite electrode.

[0032] Both ends of the adjustment plate 4 are provided with through slots 16, and second slide bars 17 are provided on the upper and lower sides of one side of the clamping plate 5. One end of each set of the clamping plates 5 passes through the two sets of through slots 16 and is movably connected to the second slide bar 17. A bidirectional screw rod 18 is provided for rotation inside the two sets of through slots 16, and both ends of the bidirectional screw rod 18 pass through the two sets of the clamping plates 5 and are threadedly adapted. A first motor 19 is provided on one side of the adjustment plate 4, and the output end of the first motor 19 is connected to the bidirectional screw rod 18. During use, the stepping conveyor 1 conveys the graphite electrode to the bottom of the measuring assembly, the pneumatic cylinder 15 pushes the support block down, causing the lifting seat 3 to lower, and the first motor 19 drives the bidirectional screw rod 18 to rotate, causing the two sets of clamping plates 5 to move relative to each other along the second slide bar 17 to clamp the graphite electrode. The graphite electrode is clamped between the insulating turntable 6 and the conductive turntable 8.

[0033] A screw rod 20 is mounted on the rear clamping plate 5, which is rotated by a shaft plate. The screw rod 20 passes through the slider and is threadedly adapted. A first motor 21 is mounted on one end of the shaft plate, and the output end of the first motor 21 is connected to the screw rod 20. During operation, the first motor 21 drives the screw rod 20 to rotate, driving the slider to move along the first slide bar 9, thereby changing the position of the L-shaped bracket and the voltage detection unit.

[0034] A second motor 22 is mounted on one side of the sleeve 11, and a roller 23 is mounted on the output end of the second motor 22. The roller 23 contacts one side of the L-shaped bracket 10. During operation, the insulating turntable 6 rotates the graphite electrodes to switch the detection surface. The two sets of voltage detection units are driven by the second motor 22 to rotate the roller 23. The roller 23 contacts the L-shaped bracket 10, causing the sleeve 11 to move on the L-shaped bracket 10, changing the detection point and distance, and achieving comprehensive multi-directional detection.

[0035] At least two sets of insulating turntables 6 and conductive turntables 8 are provided. Positioning posts 24 are provided on the inner sides of the insulating turntables 6. A second motor 25 and a pulley 26 are provided on one side of the front clamping plate 5. The output end of the second motor 25 is connected to one set of insulating turntables 6, and the pulley 26 is connected to the other set of insulating turntables 6. The output end of the second motor 25 is connected to the pulley 26 via a belt 27. The two sets of clamping plates 5 accommodate graphite electrodes of different lengths. The at least two sets of insulating turntables 6 and conductive turntables 8 facilitate the simultaneous clamping of at least two sets of graphite electrodes. The L-shaped bracket 10 moves along the first slide bar 9, facilitating position changes for testing the two sets of graphite electrodes and improving detection efficiency.

[0036] Example 2

[0037] according to Figure 1 、 2As shown in Figures 6 and 7, this embodiment provides an automatic detection device for graphite electrodes, comprising a stepping conveying portion 1 and a measuring assembly, wherein the measuring assembly comprises a support 2, a lifting seat 3 and an adjustment plate 4, wherein the lifting seat 3 is movably arranged on the inner side of the support 2, the adjustment plate 4 is arranged at one end of the lifting seat 3, and a clamping plate 5 is movably provided on both sides of one end of the adjustment plate 4, an insulating turntable 6 is rotatably provided on the inner side of the front clamping plate 5, and a conductive turntable 8 is rotatably provided on the inner side of the rear clamping plate 5 through a conductive slip ring 7;

[0038] A first slide bar 9 is provided above the clamping plate 5 on the rear side, and a slider is movably provided on the first slide bar 9, an L-shaped bracket 10 is provided on the slider, and a voltage detection part is movably provided on the L-shaped bracket 10, and two groups of voltage detection parts are provided. During use, the stepping conveyor 1 conveys the graphite electrode to the bottom of the measuring assembly, the lifting seat 3 is lowered, and the two sets of clamping plates 5 move relative to each other to clamp the graphite electrode. The graphite electrode is clamped between the insulating turntable 6 and the conductive turntable 8. The conductive slip ring 7 is connected to the conductive turntable 8 to conduct electricity, thereby connecting the graphite electrode to electricity. The voltage difference between the two points on the graphite electrode is detected by the two sets of voltage detection parts, and then the local resistance of the graphite electrode is calculated according to the distance between the two sets of voltage detection parts. The insulating turntable 6 rotates the graphite electrode to switch the detection surface. The two sets of voltage detection parts move on the L-shaped bracket 10 to change the detection point and distance, and perform comprehensive detection in multiple directions. After detection, the graphite electrode is placed on the stepping conveyor 1 and transported away. The clamping of the two sets of clamping plates 5 is suitable for graphite electrodes of different lengths.

[0039] The stepper conveyor unit 1 includes a conveyor frame 28 and conveyor rollers. Rotatable conveyor rollers are mounted on both sides of the conveyor frame 28. A stepper motor 29 is mounted at one end of the conveyor frame 28. The output of the stepper motor 29 is connected to a set of conveyor rollers. A conveyor belt 30 is wound around the conveyor rollers, and the conveyor belt 30 is provided with positioning grooves 31 that are adapted to accommodate the graphite electrodes. During operation, the graphite electrode is positioned in the positioning grooves 31 on the conveyor belt 30. The stepper motor 29 drives the conveyor rollers to rotate in steps, causing the conveyor belt 30 to move in steps, gradually delivering the graphite electrode to the bottom of the measurement assembly.

[0040] The automatic detection device for graphite electrodes uses a stepping conveyor 1 to convey the graphite electrode, and the lifting seat 3 is lowered, and the two sets of clamping plates 5 move relative to each other to clamp the graphite electrode. The graphite electrode is clamped between the insulating turntable 6 and the conductive turntable 8, and is connected to the conductive turntable 8 through the conductive slip ring 7 to conduct electricity, thereby connecting the graphite electrode. The voltage difference between two points on the graphite electrode is detected by two sets of voltage detection parts, and then the local resistance of the graphite electrode is calculated based on the distance between the two sets of voltage detection parts. By rotating the insulating turntable 6, the graphite electrode can be rotated to switch the detection surface. The two sets of voltage detection parts can be moved on the L-shaped bracket 10 to change the detection point and distance. In summary, it is convenient for comprehensive multi-directional detection, and the test results are more accurate. In addition, the present invention conveys the graphite electrode through the stepping conveyor 1 throughout the process, and after being measured by the measuring component, it is placed on the stepping conveyor 1 for transportation. No manual operation is required throughout the process, and there are no safety hazards. At the same time, the two sets of clamping plates 5 are suitable for clamping graphite electrodes of different lengths. At least two sets of insulating turntables 6 and conductive turntables 8 are used to conveniently clamp at least two sets of graphite electrodes at one time. The L-shaped bracket 10 moves along the first slide rod 9, which facilitates changing the position to detect the two sets of graphite electrodes, thereby improving the detection efficiency.

[0041] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic detection device for graphite electrodes, comprising a stepping conveying portion (1) and a measuring assembly, characterized in that: The measuring assembly comprises a support (2), a lifting seat (3) and an adjusting plate (4), wherein the lifting seat (3) is movably arranged on the inner side of the support (2), the adjusting plate (4) is arranged at one end of the lifting seat (3), and clamping plates (5) are movably arranged on both sides of one end of the adjusting plate (4), an insulating turntable (6) is rotatably arranged on the inner side of the front clamping plate (5), and a conductive turntable (8) is rotatably arranged on the inner side of the rear clamping plate (5) via a conductive slip ring (7); A first slide bar (9) is provided above the rear clamping plate (5), and a slider is movably provided on the first slide bar (9), an L-shaped bracket (10) is provided on the slider, and a voltage detection part is movably provided on the L-shaped bracket (10), and two groups of voltage detection parts are provided.

2. The automatic detection device for graphite electrodes according to claim 1, characterized in that: The voltage detection unit comprises a sliding sleeve (11), an electric telescopic rod (12) and a voltage measuring head (13); the sliding sleeve (11) is movably mounted on an L-shaped bracket (10); the electric telescopic rod (12) is arranged below the sliding sleeve (11); and the voltage measuring head (13) is arranged at the output end of the electric telescopic rod (12).

3. The automatic detection device for graphite electrodes according to claim 1, characterized in that: An inner cavity (14) is provided inside the support (2), and a pneumatic cylinder (15) is provided inside the inner cavity (14). Both ends of the lifting seat (3) are provided with support blocks extending into the inner cavity (14), and the output end of the pneumatic cylinder (15) is connected to the support block.

4. The automatic detection device for graphite electrodes according to claim 1, characterized in that: Through slots (16) are provided at both ends of the interior of the adjustment plate (4), and second slide bars (17) are provided at the upper and lower sides of one side of the clamping plate (5). One end of the two groups of clamping plates (5) respectively passes through the two groups of through slots (16) and is movably connected to the second slide bars (17).

5. The automatic detection device for graphite electrodes according to claim 4, characterized in that: Two sets of through slots (16) are internally rotatably provided with bidirectional screw rods (18), and both ends of the bidirectional screw rods (18) respectively pass through the two sets of clamping plates (5) and are threadedly adapted. A first motor (19) is provided on one side of the adjustment plate (4), and an output end of the first motor (19) is connected to the bidirectional screw rods (18).

6. The automatic detection device for graphite electrodes according to claim 1, characterized in that: A screw rod (20) is provided on the rear side of the clamping plate (5) through a shaft plate, and the screw rod (20) passes through the slider and is threadedly adapted. A first motor (21) is provided at one end of the shaft plate, and an output end of the first motor (21) is connected to the screw rod (20).

7. The automatic detection device for graphite electrodes according to claim 2, characterized in that: A second motor (22) is provided on one side of the sliding sleeve (11), and a roller (23) is provided at the output end of the second motor (22), and the roller (23) contacts one side of the L-shaped bracket (10).

8. The automatic detection device for graphite electrodes according to claim 1, characterized in that: The insulating turntable (6) and the conductive turntable (8) are each provided with at least two groups, a positioning column (24) is provided on the inner side of the insulating turntable (6), a second motor (25) and a pulley (26) are provided on one side of the front clamping plate (5), the output end of the second motor (25) is connected to one group of the insulating turntables (6), the pulley (26) is connected to the other group of the insulating turntables (6), and the output end of the second motor (25) is connected to the pulley (26) via a belt (27).

9. An automatic detection device for graphite electrodes according to any one of claims 1 to 8, characterized in that: The stepping conveying part (1) includes a conveying frame (28) and conveying rollers. Conveying rollers are rotatably provided on both sides of the conveying frame (28). A stepping motor (29) is provided at one end of the conveying frame (28). The output end of the stepping motor (29) is connected to a group of conveying rollers. A conveying belt (30) is wound around the conveying rollers. The conveying belt (30) is provided with a positioning groove (31). The positioning groove (31) is adapted to the graphite electrode.

Images