Graphite electrode cooling device

Abstract

The utility model belongs to the technical field of graphite electrode production, and particularly relates to a graphite electrode cooling device which comprises a water storage pond, an inner partition plate is arranged in the water storage pond, a second positioning supporting piece and a first positioning supporting piece are installed on the two opposite end faces of the water storage pond and the inner partition plate respectively, and a flowing opening flush with the inner wall of a supporting ring is formed in the inner partition plate. A water circulation assembly is installed on the water storage pond, and a push type stirrer in the water circulation assembly is arranged in the flowing opening and is collinear with the axis of the flowing opening. Graphite electrodes with different specifications can be collinear with the axis of the push type stirrer under the support of the positioning support piece I and the positioning support piece II, so that water flow conveyed by the push type stirrer uniformly flows along the inner and outer walls of the graphite electrodes, and uniform cooling of the graphite electrodes is realized; and the quality and service life of the electrode are prevented from being influenced by non-uniform temperature distribution of the electrode.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphite electrode production, and in particular relates to a graphite electrode cooling device. Background Art

[0002] In recent years, with the introduction of precision molds and high-efficiency molds (mold cycles are getting shorter and shorter), people have higher and higher requirements for mold making. Due to the limitations of copper electrodes themselves, they are increasingly unable to meet the development requirements of the mold industry. As an EDM electrode material, graphite has been widely used in the mold industry for its advantages of high machinability, light weight, fast forming, extremely low expansion rate, low loss, and easy trimming.

[0003] The traditional water cooling method of graphite electrodes is difficult to achieve uniform cooling effect. Some areas of the electrode may be well cooled, while other areas may not be cooled enough, which will lead to uneven temperature distribution of the electrode, thus affecting the processing quality and the service life of the electrode. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a graphite electrode cooling device to solve the problem that the existing water cooling method of graphite electrodes is difficult to achieve a uniform cooling effect, which in turn leads to uneven temperature distribution of the electrode, affecting the processing quality and the service life of the electrode.

[0005] To achieve the above purpose, the utility model adopts the following technical solution: a graphite electrode cooling device, comprising a water tank, an inner baffle is arranged inside the water tank, and positioning support member 2 and positioning support member 1 are respectively installed on the two facing end surfaces of the water tank and the inner baffle, and the positioning support member 1 and positioning support member 2 both include support rings, and the two support rings are respectively arranged on the water tank and the inner baffle, and a gear ring is rotatably mounted on the outer side of the support ring, and the gear ring is meshed and connected to a driving gear and two driven gears 1 symmetrically arranged on the lower side of the gear ring, and the gear ring in the positioning support member 1 is also meshed and connected to a driven gear 2, and a connecting frame and an extension frame are respectively installed on the driven gear 2 and the driven gear 1, and support rollers and photoelectric sensors are respectively installed on the connecting frame and the extension frame, and the driving gear is transmission-connected with a positioning motor, and a flow port flush with the inner wall of the support ring is opened on the inner baffle, and a water circulation assembly is installed on the water tank, and a propulsion agitator in the water circulation assembly is arranged in the flow port and is colinear with the axis of the flow port.

[0006] The beneficial effect of the utility model is that graphite electrodes of different specifications can be kept in line with the axis of the propeller agitator under the support of the positioning support member 1 and the positioning support member 2, so that the water flow delivered by the propeller agitator flows evenly along the inner and outer walls of the graphite electrode, thereby achieving uniform cooling of the graphite electrode and avoiding uneven temperature distribution of the electrode affecting the quality and life of the electrode.

[0007] In order to keep the graphite electrodes of different specifications coaxial with the propeller stirrer through three-point positioning;

[0008] As a further improvement of the above technical solution: the driven gear 2 is of the same structural size as the driven gear 1, the angles between the driven gear 2 and the two driven gears 1 are the same, and the straight-line distance from the optical axis of the photoelectric sensor to the axis of the driven gear 2 is equal to the straight-line distance from the axis of the support roller to the axis of the driven gear 1.

[0009] The beneficial effect of this improvement is: when the positioning motor drives the ring gear to rotate and thus causes the driven gear 2 and the driven gear 1 to rotate synchronously, the support roller drives the upper graphite electrode upward, and when the light beam of the photoelectric sensor is blocked by the end of the graphite electrode, the positioning support 1 and the positioning support 2 use a three-point centering method to make the graphite electrode close to being coaxial with the propulsion agitator, and the size of the deviation is only affected within the radius of the support roller.

[0010] In order to make the support roller smoothly hold up the graphite electrode during the rotation around the axis of the driven gear;

[0011] As a further improvement of the above technical solution: the support roller is rotatably mounted on the extension frame.

[0012] The beneficial effect of this improvement is that the rotatably mounted support roller can roll on the surface of the graphite electrode during the rotation of the extension frame, thereby reducing the friction between the support roller and the graphite electrode, so that the support roller can smoothly support the graphite electrode during the rotation around the axis of the driven gear.

[0013] In order to drive the gear ring to rotate stably through the positioning motor;

[0014] As a further improvement of the above technical solution: the driven gear 2 is rotatably mounted on the inner partition, the two groups of the driving gear and the driven gear 1 are rotatably mounted on the water tank and the inner partition respectively, the positioning motor is mounted on the top of the water tank, and the positioning motor is connected to the driving gear through a belt transmission mechanism.

[0015] The beneficial effect of this improvement is that the positioning motor can be stably installed on the top of the water tank to avoid contact with the cooling water, and the driving gear can be safely and stably driven to rotate through the belt transmission mechanism, thereby driving the ring gear to rotate.

[0016] In order to ensure the stable rotation of the propeller agitator;

[0017] As a further improvement of the above technical solution: the propeller agitator is installed on a main shaft, one end of the main shaft is connected to the output shaft of the motor, and the motor is installed on the outside of the water storage tank.

[0018] The beneficial effect of this improvement is that the motor installed outside the water storage tank can drive the propulsion agitator to rotate stably through the main shaft with the cooperation of the dynamic seal.

[0019] In order to ensure the uniformity of water temperature in each area of ​​the water storage tank;

[0020] As a further improvement of the above technical solution: a return pipe is arranged at the bottom of the water tank between the positioning support member 1 and the positioning support member 2, one end of the return pipe is connected to the interior of the water tank on the other side of the inner partition, and a plurality of return pipes are arranged at equal intervals.

[0021] The beneficial effect of this improvement is that the water with lower temperature at the bottom of the water storage tank passes into the interior of the return pipe, and then flows to the other side of the inner partition, and is sucked back by the propulsion agitator to ensure the uniformity of water temperature in each area of ​​the water storage tank.

[0022] In order to quickly replace the water in the water storage tank;

[0023] As a further improvement of the above technical solution: a water supply port and a water discharge port are opened on the side of the water storage tank, and the water supply port and the water discharge port are respectively connected to a water supply pipeline and a drainage pipeline.

[0024] The beneficial effect of this improvement is that when the water temperature is too high, the water in the water storage tank is released from the water discharge port and replenished through the water replenishment port.

[0025] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a cross-sectional structural diagram of the utility model;

[0027] Figure 2 It is a schematic diagram of the structure of the utility model;

[0028] Figure 3 This is a structural schematic diagram of a positioning support member 1 in the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the positioning support member 2 in the utility model;

[0030] In the figure: 1. water storage tank; 2. inner partition; 21. flow port; 3. positioning support one; 30. driven gear two; 31. support ring; 32. gear ring; 33. driven gear one; 34. extension frame; 35. support roller; 36. connecting frame; 37. photoelectric sensor; 38. driving gear; 39. positioning motor; 4. positioning support two; 5. water circulation assembly; 51. propulsion agitator; 52. main shaft; 53. motor; 6. water inlet; 7. water outlet; 8. return pipe; 9. return port. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0032] Embodiment 1:

[0033] like Figure 1—4 shows: a graphite electrode cooling device, comprising a water tank 1, wherein an inner partition 2 is arranged inside the water tank 1, and positioning support members 2 4 and positioning support members 1 3 are respectively installed on the two facing end surfaces of the water tank 1 and the inner partition 2, wherein the positioning support members 1 3 and positioning support members 2 4 both comprise support rings 31, wherein two support rings 31 are respectively arranged on the water tank 1 and the inner partition 2, and a gear ring 32 is rotatably mounted on the outer side of the support ring 31, wherein the gear ring 32 is meshedly connected to a driving gear 38 and two driven gears 1 33 symmetrically arranged on the lower side of the gear ring 32, and the gear ring 32 in the positioning support member 1 3 is also meshedly connected to a driven gear 2 30, wherein the driven gears 2 30 and 1 33 are respectively installed with gears 34 and 35. A connecting frame 36 and an extension frame 34, wherein the connecting frame 36 and the extension frame 34 are respectively provided with a support roller 35 and a photoelectric sensor 37, wherein the driving gear 38 is transmission-connected with a positioning motor 39, wherein the inner partition plate 2 is provided with a flow port 21 flush with the inner wall of the support ring 31, wherein the water storage tank 1 is provided with a water circulation assembly 5, wherein a propeller agitator 51 in the water circulation assembly 5 is arranged in the flow port 21 and is colinear with the axis of the flow port 21, and graphite electrodes of different specifications can be supported by the positioning support member 1 3 and the positioning support member 2 4 to keep the axis of the propeller agitator 51 colinear, thereby making the water flow delivered by the propeller agitator 51 flow evenly along the inner and outer walls of the graphite electrode, thereby achieving uniform cooling of the graphite electrode and avoiding The uneven temperature distribution of the electrode affects the quality and life of the electrode. The driven gear 2 30 and the driven gear 1 33 have the same structural size. The driven gear 2 30 and the two driven gears 1 33 have the same angle. The straight-line distance from the optical axis of the photoelectric sensor 37 to the axis of the driven gear 2 30 is equal to the straight-line distance from the axis of the support roller 35 to the axis of the driven gear 1 33. When the positioning motor 39 drives the gear ring 32 to rotate and thus the driven gear 2 30 and the driven gear 1 33 rotate synchronously, the support roller 35 moves the upper graphite electrode upward. When the light beam of the photoelectric sensor 37 is blocked by the end of the graphite electrode, the positioning support 1 3 and the positioning support 2 4 use a three-point centering method to approach and advance the graphite electrode. The agitator 51 is coaxial, and the deviation is only affected within the radius of the support roller 35. The support roller 35 is rotatably mounted on the extension frame 34. The rotatably mounted support roller 35 can roll on the surface of the graphite electrode during the rotation of the extension frame 34, thereby reducing the friction between the support roller 35 and the graphite electrode, so that the support roller 35 can smoothly hold up the graphite electrode during the rotation around the axis of the driven gear 1 33. The driven gear 2 30 is rotatably mounted on the inner partition 2. The two groups of the driving gear 38 and the driven gear 1 33 are rotatably mounted on the water tank 1 and the inner partition 2 respectively. The positioning motor 39 is mounted on the top of the water tank 1. The positioning motor 39 is connected to the driving gear 38 through a belt transmission mechanism.The positioning motor 39 can be stably installed on the top of the water tank 1 to avoid contact with the cooling water, and can safely and stably drive the driving gear 38 to rotate through the belt transmission mechanism, thereby driving the gear ring 32 to rotate. The propeller agitator 51 is installed on the main shaft 52, one end of the main shaft 52 is connected to the output shaft of the motor 53, and the motor 53 is installed on the outside of the water tank 1. The motor 53 installed on the outside of the water tank 1 can drive the propeller agitator 51 to rotate stably through the main shaft 52 with the cooperation of the dynamic seal. A return pipe 8 is provided at the bottom of the water tank 1 between the positioning support member 1 3 and the positioning support member 2 4. One end of the return pipe 8 is connected to the inside of the water tank 1 on the other side of the inner partition 2. A plurality of 81 are evenly spaced on the return pipe 8. The water with a lower temperature at the bottom of the water tank 1 enters the inside of the return pipe 8 through 81, and then flows to the other side of the inner partition 2, and is sucked back by the propulsion stirrer 51 to ensure the uniformity of the water temperature in each area of ​​the water tank 1. A water replenishment port 6 and a water discharge port 7 are opened on the side of the water tank 1. The water replenishment port 6 and the water discharge port 7 are respectively connected to the water replenishment pipeline and the drainage pipeline. When the water temperature is too high, the water in the water tank 1 is discharged from the water discharge port 7 and replenished through the water replenishment port 6.

[0034] The working principle of the present technical solution is as follows: after the graphite electrode is hoisted and placed inside the water tank 1, it contacts the water body, and the water body is heated and vaporized to absorb heat to achieve the purpose of cooling; in order to make the graphite electrode coaxial with the propulsion agitator 51 so that the water flows evenly along the inner and outer surfaces of the graphite electrode to cool down, when the graphite electrode is placed in the water tank 1 and supported by the support roller 35, the positioning motor 39 drives the driving gear 38 to rotate, and then drives the gear ring 32 to rotate, thereby driving the driven gear 1 33 and the driven gear 2 30 to rotate, so that the extension frame 34 drives the support roller 35 to rotate around the axis of the driven gear 1 33, and the connecting frame 36 drives the photoelectric sensor 37 to rotate around the axis of the driven gear 1 33. When the light beam of the photoelectric sensor 37 is blocked by the end of the graphite electrode, the light beam of the photoelectric sensor 37 is blocked by the end of the graphite electrode. After blocking, the positioning support member 1 3 and the positioning support member 2 4 make the graphite electrode close to being coaxial with the propeller agitator 51 through a three-point centering method; then the motor 53 runs, and the propeller agitator 51 is driven to rotate at a high speed through the main shaft 52. The axial water flow generated when the propeller agitator 51 rotates flows along the inner and outer wall surfaces of the graphite electrode, thereby quickly and evenly reducing the temperature of the graphite electrode; the water flow with a lower temperature at the bottom of the water storage tank 1 enters the interior of the return pipe 8 through 81, and then flows to the other side of the inner partition 2, and is sucked back by the propeller agitator 51, so as to ensure the uniformity of the water temperature in each area of ​​the water storage tank 1 and the uniformity of the cooling of the graphite electrode; when the water temperature is too high, the water in the water storage tank 1 is discharged from the drain port 7 and replenished through the water replenishment port 6.

[0035] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A graphite electrode cooling device, characterized in that: The invention comprises a water tank (1), wherein an inner baffle (2) is arranged inside the water tank (1), and two end surfaces of the water tank (1) and the inner baffle (2) facing each other are respectively provided with a second positioning support member (4) and a first positioning support member (3), wherein the first positioning support member (3) and the second positioning support member (4) both comprise a support ring (31), and the two support rings (31) are respectively arranged on the water tank (1) and the inner baffle (2), and a gear ring (32) is rotatably mounted on the outer side of the support ring (31), and the gear ring (32) is meshedly connected to a driving gear (38) and two driven gears (33) symmetrically arranged on the lower side of the gear ring (32), and the gear ring (38) in the first positioning support member (3) is arranged to rotate with the gear ring (32) and the driven gears (33) are arranged symmetrically on the lower side of the gear ring (32), and the gear ring (38) in the first positioning support member (3) is arranged to rotate with the gear ring (32) and the driven gears (33) are arranged symmetrically on the lower side of the gear ring (32). The driven gear (32) is also meshedly connected with a driven gear (30), and a connecting frame (36) and an extension frame (34) are respectively installed on the driven gear (30) and the driven gear (33), and a supporting roller (35) and a photoelectric sensor (37) are respectively installed on the connecting frame (36) and the extension frame (34), and the driving gear (38) is drivingly connected with a positioning motor (39), and a flow port (21) flush with the inner wall of the support ring (31) is opened on the inner partition (2), and a water circulation component (5) is installed on the water storage tank (1), and a propulsion agitator (51) in the water circulation component (5) is arranged in the flow port (21) and is colinear with the axis of the flow port (21).

2. A graphite electrode cooling device according to claim 1, characterized in that: The driven gear 2 (30) and the driven gear 1 (33) have the same structural size, the driven gear 2 (30) and the included angles between the two driven gears 1 (33) are the same, and the straight-line distance from the optical axis of the photoelectric sensor (37) to the axis of the driven gear 2 (30) is equal to the straight-line distance from the axis of the support roller (35) to the axis of the driven gear 1 (33).

3. A graphite electrode cooling device according to claim 1, characterized in that: The support roller (35) is rotatably mounted on the extension frame (34).

4. A graphite electrode cooling device according to claim 1, characterized in that: The driven gear 2 (30) is rotatably mounted on the inner partition (2), the two sets of the driving gear (38) and the driven gear 1 (33) are rotatably mounted on the water tank (1) and the inner partition (2), respectively, the positioning motor (39) is mounted on the top of the water tank (1), and the positioning motor (39) is connected to the driving gear (38) through a belt transmission mechanism.

5. A graphite electrode cooling device according to claim 1, characterized in that: The propeller stirrer (51) is mounted on a main shaft (52), one end of the main shaft (52) is connected to the output shaft of a motor (53), and the motor (53) is mounted outside the water storage tank (1).

6. A graphite electrode cooling device according to claim 1, characterized in that: A water return pipe (8) is provided at the bottom of the water tank (1) between the first positioning support member (3) and the second positioning support member (4), one end of the water return pipe (8) is connected to the interior of the water tank (1) on the other side of the inner partition (2), and a plurality of water return pipes (81) are provided on the water return pipe (8) at equal intervals.

7. A graphite electrode cooling device according to claim 1, characterized in that: A water supply port (6) and a water discharge port (7) are provided on the side of the water storage tank (1), and the water supply port (6) and the water discharge port (7) are respectively connected to a water supply pipeline and a water discharge pipeline.

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