Rod adding and taking device, rod adding method and rod taking method of rod mill

Abstract

The rod mill comprises a barrel, a feeding port is formed in one end of the barrel, and the rod feeding and taking device of the rod mill comprises a rod feeding and discharging conveying mechanism used for stretching into the barrel from the feeding port and a rod feeding and taking conveying assembly used for conveying steel rods between the rod feeding and discharging conveying mechanism and the barrel. One side of the in-out rod conveying mechanism is provided with a rod in-out opening, the rod adding and taking conveying assembly comprises a first conveying arm and a second conveying arm, one end of the first conveying arm is hinged to one side of the rod in-out opening, and one end of the second conveying arm is hinged to the other end of the first conveying arm; a first limiting part used for limiting the rotating angle of the first conveying arm towards the outside of the rod inlet and outlet opening is arranged on the rod inlet and outlet conveying mechanism, and a second limiting part used for limiting the rotating angle of the second conveying arm towards the outside of the rod inlet and outlet opening is arranged on the first conveying arm. The invention further discloses a rod adding method and a rod taking method of the rod mill. The rod adding and taking device, the rod adding method and the rod taking method of the rod mill have the advantages of preventing smashing damage, improving efficiency and the like.

Description

Technical Field

[0001] This invention relates to the field of rod mill technology, specifically to a rod mill rod adding and removing device, rod adding method, and rod removing method. Background Technology

[0002] In industrial production such as mining and mineral processing, rod mills are crucial grinding equipment, and the efficiency and quality of rod feeding directly affect grinding efficiency and production output. Traditional rod feeding relies primarily on manual operation, which suffers from high labor intensity, slow feeding speed, and inaccurate rod placement. During manual feeding, differences in operator skill and physical strength can easily lead to uneven rod feeding, impacting the grinding efficiency and product quality of the rod mill.

[0003] Chinese patent document CN202210465678.1 discloses a rod-adding device for a steel slag rod mill, including a tilting mechanism disposed inside the cylinder and a rod-guiding mechanism disposed outside the cylinder. The tilting mechanism includes two support seats at the front and rear, and a tilting conveyor roller conveyor disposed between the two support seats. The front support seat is detachably connected to the cylinder feed inlet and has a steel rod through hole aligned with the rod-guiding mechanism. The rear support seat is detachably connected to the cylinder discharge outlet and has a tilting motor. The front end of the tilting conveyor roller conveyor is aligned with the steel rod through hole and rotatably connected to the front support seat. The rear end of the tilting conveyor roller conveyor is rotatably connected to the rear support seat and connected to the drive shaft of the tilting motor. The rod-guiding mechanism includes a rod-guiding roller conveyor and a drive motor. The discharge end of the rod-guiding roller conveyor is aligned with the steel rod through hole, and the drive motor drives the steel rods on the rod-guiding roller conveyor into the tilting conveyor roller conveyor. This rod-adding device for a rod mill has the following shortcomings: 1) The steel bars are flipped and poured into the cylinder by the flipping conveyor rollers. The steel bars fall freely and collide with the cylinder, which can easily damage both the cylinder and the steel bars. 2) It is only applicable to adding rods, not to removing rods, with limited functionality and poor adaptability. Summary of the Invention

[0004] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art and provide a rod mill rod adding and removing device that prevents steel rods from falling freely onto the inner wall of the cylinder, thus preventing damage to the cylinder and the steel rods. This device is suitable for both adding and removing rods and has strong adaptability. The invention also discloses a rod adding method for a rod mill that is convenient to operate and highly efficient, preventing steel rods from falling freely onto the inner wall of the cylinder, thus preventing damage to the cylinder and the steel rods. Furthermore, it discloses a rod removing method for a rod mill that reduces collisions between steel rods and the rod conveying mechanism, preventing damage, and is convenient to operate and highly efficient.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A rod mill rod feeding and taking device is disclosed. The rod mill includes a cylinder with a feed inlet at one end. The rod mill rod feeding and taking device includes a rod feeding and taking mechanism for extending into the cylinder from the feed inlet and a rod feeding and taking conveying assembly for conveying steel rods between the rod feeding and taking mechanism and the cylinder. The rod feeding and taking mechanism has a rod feeding and taking outlet on one side. The rod feeding and taking conveying assembly includes a first conveying arm and a second conveying arm. One end of the first conveying arm is hinged to one side of the rod feeding and taking outlet, and one end of the second conveying arm is hinged to the other end of the first conveying arm. The rod feeding and taking mechanism is provided with a first limiting part for limiting the rotation angle of the first conveying arm outward from the rod feeding and taking outlet, and the first conveying arm is provided with a second limiting part for limiting the rotation angle of the second conveying arm outward from the rod feeding and taking outlet.

[0006] As a further improvement to the above technical solution: The bar conveying mechanism includes a first fixed plate, a second fixed plate, and a bar conveying channel. The bar conveying channel is fixed between the first fixed plate and the second fixed plate and passes through the middle of the first fixed plate for conveying steel bars. The bar inlet and outlet are located on one side of the bar conveying channel. The first fixed plate and the second fixed plate are used to fix the cylinder at both ends respectively.

[0007] The first fixed disk and the second fixed disk are coaxial.

[0008] Bolt holes are provided on the periphery of the first and second fixed plates.

[0009] The rod conveying channel is a groove-shaped channel with a small bottom and a large rod inlet and outlet.

[0010] The two sides of the rod feeding channel are arranged in a figure-eight shape.

[0011] When the first conveying arm abuts against the first limiting part, the angle α between it and the corresponding inner side of the conveying bar channel is 135° to 225°.

[0012] When the second conveying arm comes into contact with the second limiting part, the angle β between it and the first conveying arm is 135° to 180°.

[0013] A method for adding rods to a rod mill, using the aforementioned rod mill rod adding and removing device, includes the following steps: S1. Insert the bar conveying mechanism from the feed port into the cylinder and fix it to the cylinder; S2. When the bar inlet and outlet are facing upwards, the bar conveying mechanism conveys steel bars into the cylinder. At this time, the first conveying arm is in the initial state of covering the bar inlet and outlet under the action of gravity. S3. The cylinder drives the bar conveying mechanism to rotate in the forward direction; firstly, the first conveying arm rotates outward from the bar inlet under the action of gravity until it abuts against the first limiting part, and the second conveying arm rotates outward from the bar inlet under the action of gravity until it abuts against the second limiting part. At this time, the first conveying arm is higher than the second conveying arm, and the first and second conveying arms form an inclined bar-adding guide track; then, the steel bars in the bar conveying mechanism are poured out through the bar inlet and rolled along the bar-adding guide track to the bottom of the cylinder. S4. Rotate the bar conveying mechanism forward until the first conveying arm returns to its initial state, then stop rotating.

[0014] A rod mill rod removal method, using the aforementioned rod mill with rod removal device, includes the following steps: Y1. Insert the bar conveying mechanism into the cylinder from the feed port and fix it to the cylinder. At this time, the bar inlet and outlet face upwards, and the first conveying arm is in the initial state of covering the bar inlet and outlet under the action of gravity. Y2. The cylinder drives the bar conveying mechanism to rotate in the negative direction. First, the first conveying arm rotates outward from the bar inlet under the action of gravity until it abuts against the second limiting part. At this time, the first conveying arm also abuts against the steel bar inside the cylinder. Then, the second conveying arm rotates outward from the bar inlet under the action of gravity until it abuts against the second limiting part. At this time, the second conveying arm also abuts against the steel bar inside the cylinder. Next, the first and second conveying arms rotate upward to push the steel bar inside the cylinder. Then, the second conveying arm is made higher than the first conveying arm, and the first and second conveying arms form an inclined bar exit guide track. The steel bar to be taken out rolls along the bar exit guide track to the bar conveying mechanism. Finally, when the bar inlet returns to the initial upward state, the bar conveying mechanism stops rotating. Y3. After the bar conveying mechanism outputs the steel bars that need to be removed, it rotates forward to send the steel bars that do not need to be removed back into the cylinder.

[0015] Compared with the prior art, the advantages of the present invention are as follows: The rod mill rod feeding and removal device of the present invention has two advantages. First, during rod feeding, the first and second conveying arms can form an inclined rod feeding guide track between the rod inlet / outlet of the rod feeding and removal mechanism and the inner wall of the cylinder, with the first conveying arm being higher than the second conveying arm. This guides the steel rods in the rod feeding and removal mechanism to the inner wall of the cylinder, preventing the steel rods from falling freely onto the inner wall of the cylinder and thus preventing damage to the cylinder and the steel rods. Second, the first and second conveying arms can form an inclined rod removal guide track between the rod inlet / outlet of the rod feeding and removal mechanism and the inner wall of the cylinder, with the second conveying arm being higher than the first conveying arm. This guides the steel rods on the inner wall of the cylinder to the rod feeding and removal mechanism, and then transports them through the mechanism to remove the rods. In other words, the rod mill rod feeding and removal device is suitable for both feeding and removing rods, thus improving its adaptability.

[0016] The rod-adding method for a rod mill of the present invention involves a first conveying arm and a second conveying arm forming an inclined rod-adding guide track between the rod inlet / outlet of the rod-feeding mechanism and the inner wall of the cylinder. The first conveying arm is higher than the second conveying arm. This guides the steel rods within the rod-feeding mechanism to the inner wall of the cylinder, preventing them from falling freely and damaging the cylinder or the steel rods. Furthermore, the inclined guide rod-adding can be achieved simply by forward rotation, making the operation convenient and highly efficient.

[0017] This rod mill rod removal method utilizes a first and second conveyor arm to form an inclined rod removal guide rail, with the second conveyor arm higher than the first, between the rod inlet / outlet of the rod conveying mechanism and the inner wall of the cylinder. This guide rail directs the steel rods from the inner wall of the cylinder into the rod conveying mechanism, where they are then transported to remove the rods. On one hand, the inclined guide rail reduces collisions between the steel rods and the rod conveying mechanism, preventing damage. On the other hand, the inclined guide rail allows for rod removal through negative rotation, making the operation convenient and highly efficient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the rod mill rod loading and unloading device of the present invention.

[0019] Figure 2 This is a side cross-sectional schematic diagram of the rod mill rod removal device of the present invention.

[0020] Figure 3 This is a schematic diagram of the rod mill rod loading and unloading device of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the rod mill rod feeding method of the present invention when the rod conveying mechanism feeds steel rods into the cylinder.

[0022] Figure 5 This is a schematic diagram of the structure of the rod mill rod adding method of the present invention during the formation of the rod adding guide track.

[0023] Figure 6 This is a schematic diagram of the structure of the rod mill rod adding method of the present invention when the steel rod rolls along the rod adding guide track.

[0024] Figure 7 This is a schematic diagram of the structure of the rod mill feeding method of the present invention after the steel rods in the rod conveying mechanism have been completely fed.

[0025] Figure 8 This is a schematic diagram of the rod mill rod removal method of the present invention in the initial state when the rod inlet and outlet are facing upwards.

[0026] Figure 9 This is a schematic diagram of the rod-taking method of the rod mill of the present invention when the rod is pushed by the first and second conveyor arms.

[0027] Figure 10 This is a schematic diagram of the structure of the rod mill rod removal method of the present invention during the formation of the rod exit guide track.

[0028] Figure 11 This is a schematic diagram of the structure of the rod mill rod removal method of the present invention when the steel rod rolls along the rod exit guide track.

[0029] The labels in the diagram represent: 1. Bar conveying mechanism; 11. First fixed plate; 12. Second fixed plate; 13. Bar conveying channel; 2. Bar loading and unloading conveying assembly; 21. First conveying arm; 22. Second conveying arm; 3. Cylinder; 31. Feed inlet; 4. Bar loading and unloading inlet; 5. First limiting part; 6. Second limiting part; 7. Steel bar; 8. Bolt hole; 9. Bar loading guide rail; 91. Bar unloading guide rail. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] Example 1: Figures 1 to 3 This invention illustrates an embodiment of the rod mill rod feeding and taking device. The rod mill includes a cylinder 3 with a feed inlet 31 at one end. The device includes a rod feeding and taking device for a rod conveying mechanism 1 extending into the cylinder 3 from the feed inlet 31 and a rod feeding and taking device assembly 2 for conveying steel rods 7 between the conveying mechanism 1 and the cylinder 3. The conveying mechanism 1 has a rod inlet / outlet 4 on one side. The rod feeding and taking device assembly 2 includes a first conveying arm 21 and a second conveying arm 22. One end of the first conveying arm 21 is hinged to one side of the rod inlet / outlet 4, and one end of the second conveying arm 22 is hinged to the other end of the first conveying arm 21. The conveying mechanism 1 has a first limiting part 5 for limiting the rotation angle of the first conveying arm 21 outward from the rod inlet / outlet 4, and the first conveying arm 21 has a second limiting part 6 for limiting the rotation angle of the second conveying arm 22 outward from the rod inlet / outlet 4.

[0035] The rod feeding process of this rod mill's rod feeding and unloading device is as follows: First, the rod feeding and unloading conveying mechanism 1 extends into the cylinder 3 from the feed inlet 31 and is fixedly connected to the cylinder 3. Second, with the rod feeding and unloading inlet 4 facing upwards, the rod feeding and unloading conveying mechanism 1 feeds steel rods 7 into the cylinder 3. At this time, the first conveying arm 21 is in its initial state, covering the rod feeding and unloading inlet 4 under gravity. Third, the cylinder 3 drives the rod feeding and unloading conveying mechanism 1 to rotate forward; firstly, the first conveying arm 21 rotates outwards from the rod feeding and unloading inlet 4 under gravity until it is aligned with the first... The limiting part 5 abuts against the second conveying arm 22, which rotates outward from the inlet / outlet 4 under the action of gravity until it abuts against the second limiting part 6. At this time, the first conveying arm 21 is higher than the second conveying arm 22, and the first conveying arm 21 and the second conveying arm 22 form an inclined rod-adding guide track 9. Then, the steel rod 7 in the rod-adding conveying mechanism 1 is poured out through the inlet / outlet 4 and rolled along the rod-adding guide track 9 to the bottom of the cylinder 3. In the fourth step, the rod-adding conveying mechanism 1 is rotated forward until the first conveying arm 21 returns to the initial state, and then the rotation stops.

[0036] The rod-retrieving process of this rod mill with rod-retrieving device is as follows: First, the rod-feeding and rod-retrieving mechanism 1 is inserted into the cylinder 3 through the feed inlet 31 and fixedly connected to the cylinder 3. At this time, the rod-feeding and rod-retrieving inlet 4 faces upward, and the first conveying arm 21 is in its initial state, covering the rod-feeding and rod-retrieving inlet 4 under gravity. Second, the cylinder 3 drives the rod-feeding and rod-retrieving mechanism 1 to rotate in the negative direction. First, the first conveying arm 21 rotates outward from the rod-feeding and rod-retrieving inlet 4 under gravity until it abuts against the second limiting part 6. At this time, the first conveying arm 21 also abuts against the steel rod 7 inside the cylinder 3. Then, the second conveying arm 22 rotates outward from the rod-feeding and rod-retrieving inlet 4 under gravity until it abuts against the second limiting part 6. At this time, the first conveying arm 21 rotates outward from the rod-feeding and rod-retrieving inlet 4 under gravity until it abuts against the second limiting part 6. The second conveyor arm 22 also abuts against the steel rod 7 inside the cylinder 3; then the first conveyor arm 21 and the second conveyor arm 22 rotate upward to push the steel rod 7 inside the cylinder 3; then the second conveyor arm 22 is higher than the first conveyor arm 21, and the first conveyor arm 21 and the second conveyor arm 22 form an inclined rod exit guide track 91, and the steel rod 7 to be taken out rolls along the rod exit guide track 91 to the rod inlet and outlet conveying mechanism 1; finally, when the rod inlet and outlet port 4 returns to the initial upward state, the rod inlet and outlet conveying mechanism 1 stops rotating; in the third step, after the rod inlet and outlet conveying mechanism 1 outputs the steel rod 7 to be taken out, it rotates forward again to send the steel rod 7 that does not need to be taken out back into the cylinder 3.

[0037] The rod feeding and removing device of this rod mill has two main functions. First, during rod feeding, the first conveying arm 21 and the second conveying arm 22 form an inclined rod feeding guide rail 9 between the rod inlet / outlet 4 of the rod feeding / outlet conveying mechanism 1 and the inner wall of the cylinder 3. This guide rail 9, where the first conveying arm 21 is higher than the second conveying arm 22, guides the steel rods 7 from the rod feeding / outlet conveying mechanism 1 to the inner wall of the cylinder 3, preventing the steel rods 7 from falling freely onto the inner wall of the cylinder 3 and thus preventing damage to the cylinder 3 and the steel rods 7. Second, the first conveying arm 21 and the second conveying arm 22 form an inclined rod removal guide rail 91 between the rod inlet / outlet 4 of the rod feeding / outlet conveying mechanism 1 and the inner wall of the cylinder 3. This guides the steel rods 7 from the inner wall of the cylinder 3 into the rod feeding / outlet conveying mechanism 1, and then transports them through the mechanism to remove the rods. Therefore, this rod feeding and removing device is suitable for both feeding and removing rods, improving its adaptability.

[0038] Furthermore, in this embodiment, the bar conveying mechanism 1 includes a first fixed plate 11, a second fixed plate 12, and a bar conveying channel 13. The bar conveying channel 13 is fixed between the first fixed plate 11 and the second fixed plate 12 and passes through the middle of the first fixed plate 11 for conveying steel bars 7. The bar inlet / outlet 4 is located on one side of the bar conveying channel 13. The first fixed plate 11 and the second fixed plate 12 are respectively fixed to both ends of the cylinder 3. In use, the bar conveying mechanism 1 is inserted into the cylinder 3 from the feed port 31 and coaxially fixed to both ends of the cylinder 3 with the first fixed plate 11 and the second fixed plate 12. On the one hand, during bar addition, the first conveyor arm 21 and the second conveyor arm 22 can form an inclined bar addition guide rail 9 between the bar inlet / outlet 4 of the bar conveying channel 13 and the inner wall of the cylinder 3, where the first conveyor arm 21 is higher than the second conveyor arm 22. This guides the steel bars 7 in the bar conveying channel 13 to the inner wall of the cylinder 3, preventing the steel bars 7 from falling freely onto the inner wall of the cylinder 3 and thus preventing damage to the cylinder and the steel bars 7. On the other hand, the first conveyor arm 21 and the second conveyor arm 22 can form an inclined bar exit guide rail 91 between the bar inlet / outlet 4 of the bar conveying channel 13 and the inner wall of the cylinder 3, where the second conveyor arm 22 is higher than the first conveyor arm 21. This guides the steel bars 7 on the inner wall of the cylinder 3 into the bar conveying channel 13, and then conveys them through the bar inlet / outlet conveying mechanism 1 to achieve bar removal. Rollers or conveyor belts can be installed inside the bar conveying channel 13 to facilitate the transport of the steel bars 7 along the bar conveying channel 13.

[0039] Furthermore, in this embodiment, the first fixed disk 11 and the second fixed disk 12 are coaxial. This facilitates the insertion and removal of the rod conveying mechanism 1 from the cylinder 3.

[0040] Furthermore, in this embodiment, bolt holes 8 are provided on the periphery of the first fixing plate 11 and the second fixing plate 12, which facilitates fixing to the cylinder 3 by bolts and makes disassembly and assembly convenient.

[0041] Furthermore, such as Figure 2 As shown, in this embodiment, the bar conveying channel 13 is a groove-shaped channel with a small bottom inlet / outlet 4 and a large top, which facilitates the entry and exit of the steel bar 7 through the inlet / outlet 4.

[0042] Furthermore, in this embodiment, the two sides of the rod conveying channel 13 are arranged in a figure-eight shape. Specifically, when the rod inlet / outlet 4 faces downward, the two sides of the rod conveying channel 13 are arranged in a regular figure-eight shape, and when the rod inlet / outlet 4 faces upward, the two sides of the rod conveying channel 13 are arranged in an inverted figure-eight shape.

[0043] Furthermore, such as Figure 5As shown, in this embodiment, when the first conveying arm 21 abuts against the first limiting part 5, the angle α between it and the corresponding inner side of the rod conveying channel 13 is 135° to 225°; when the second conveying arm 22 abuts against the second limiting part 6, the angle β between it and the first conveying arm 21 is 135° to 180°. This allows the first conveying arm 21 and the second conveying arm 22 to form an inclined rod-adding guide rail 9, where the first conveying arm 21 is higher than the second conveying arm 22, between the rod inlet / outlet 4 of the rod conveying channel 13 and the inner wall of the cylinder 3, when the rod inlet / outlet conveying mechanism 1 rotates in the negative direction, so that the first conveying arm 21 and the second conveying arm 22 can push the steel rod 7, and the first conveying arm 21 and the second conveying arm 22 can form an inclined rod-outlet guide rail 91, where the second conveying arm 22 is higher than the first conveying arm 21, between the rod inlet / outlet 4 of the rod conveying channel 13 and the inner wall of the cylinder 3.

[0044] Preferably, α is 180° and β is 180°.

[0045] Generally, clockwise rotation refers to rotation in the positive direction, while counterclockwise rotation refers to rotation in the negative direction.

[0046] Example 2: Figures 4 to 7 This invention illustrates an embodiment of the rod mill rod feeding method of the present invention. The rod mill rod feeding method of this embodiment uses the rod mill rod feeding and taking device of Embodiment 1, and includes the following steps: S1. Insert the bar conveying mechanism 1 from the feed port 31 into the cylinder 3 and fix it to the cylinder 3. S2. With the inlet / outlet 4 facing upwards, the inlet / outlet conveying mechanism 1 conveys steel bars 7 into the cylinder 3. At this time, the first conveying arm 21 is in its initial state, covering the inlet / outlet 4 under the action of gravity; Figure 4 As shown.

[0047] S3, the cylinder 3 drives the bar conveying mechanism 1 to rotate forward; firstly, the first conveying arm 21 rotates outward from the bar inlet 4 under gravity until it abuts against the first limiting part 5, and the second conveying arm 22 rotates outward from the bar inlet 4 under gravity until it abuts against the second limiting part 6. At this time, the first conveying arm 21 is higher than the second conveying arm 22, and the first conveying arm 21 and the second conveying arm 22 form an inclined bar guide track 9, such as... Figure 5 As shown; then the steel rods 7 inside the rod conveying mechanism 1 are poured out through the rod inlet / outlet 4 and rolled along the rod guide rail 9 to the bottom of the cylinder 3, as shown. Figure 5 and Figure 6 As shown; S4. Rotate the bar conveying mechanism 1 forward until the first conveying arm 21 returns to its initial state, then stop rotating.

[0048] In this rod mill rod feeding method, during rod feeding, the first conveyor arm 21 and the second conveyor arm 22 form an inclined rod feeding guide rail 9 between the rod inlet / outlet 4 of the rod feeding and discharging mechanism 1 and the inner wall of the cylinder 3. The first conveyor arm 21 is higher than the second conveyor arm 22. This guides the steel rods 7 inside the rod feeding and discharging mechanism 1 to the inner wall of the cylinder 3, preventing the steel rods 7 from falling freely onto the inner wall of the cylinder 3 and thus preventing damage to the cylinder 3 and the steel rods 7. Furthermore, the inclined guide rod feeding can be achieved simply by rotating in the forward direction, making the operation convenient and highly efficient.

[0049] Example 3: Figures 8 to 11 This invention illustrates an embodiment of the rod mill rod removal method of the present invention. The rod mill rod removal method of this embodiment uses the rod mill with rod removal device of Embodiment 1, and includes the following steps: Y1. Insert the bar conveying mechanism 1 into the cylinder 3 through the feed port 31 and fix it to the cylinder 3. At this time, the bar inlet / outlet 4 faces upward, and the first conveying arm 21 is in the initial state of covering the bar inlet / outlet 4 under the action of gravity. Figure 8 As shown; Y2, the cylinder 3 drives the bar conveying mechanism 1 to rotate in the negative direction; firstly, the first conveying arm 21 rotates outward from the bar inlet 4 under the action of gravity until it abuts against the second limiting part 6. At this time, the first conveying arm 21 also abuts against the steel bar 7 inside the cylinder 3, such as... Figure 9 As shown; then, under the action of gravity, the second conveyor arm 22 rotates outward from the inlet / outlet 4 until it abuts against the second limiting part 6. At this time, the second conveyor arm 22 also abuts against the steel rod 7 inside the cylinder 3, as shown. Figure 9 As shown; then the first conveyor arm 21 and the second conveyor arm 22 are rotated to push the steel rod 7 inside the cylinder 3 upward; then the second conveyor arm 22 is made higher than the first conveyor arm 21, and the first conveyor arm 21 and the second conveyor arm 22 form an inclined rod-out guide rail 91. The steel rod 7 to be removed rolls along the rod-out guide rail 91 to the rod-in / out conveying mechanism 1, as shown. Figure 11 As shown; finally, when the inlet / outlet bar 4 returns to its initial upward position, the inlet / outlet bar conveying mechanism 1 stops rotating; Y3. After the bar conveying mechanism 1 outputs the steel bar 7 that needs to be removed, it rotates forward to send the steel bar 7 that does not need to be removed back into the cylinder 3.

[0050] In this rod mill rod removal method, the first conveying arm 21 and the second conveying arm 22 form an inclined rod removal guide rail 91 between the rod inlet / outlet 4 of the rod inlet / outlet conveying mechanism 1 and the inner wall of the cylinder 3. The second conveying arm 22 is higher than the first conveying arm 21. This guide rail guides the steel rods 7 from the inner wall of the cylinder 3 into the rod inlet / outlet conveying mechanism 1, and then removes the rods through the conveying mechanism 1. On the one hand, during the rod removal process, the inclined guiding action of the rod removal guide rail 91 reduces the collision between the steel rods 7 and the rod inlet / outlet conveying mechanism 1, preventing damage. On the other hand, the inclined guiding rod removal can be achieved through negative rotation, making the operation convenient and highly efficient.

[0051] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A rod mill rod feeding and unloading device, the rod mill comprising a cylinder (3), one end of the cylinder (3) being provided with a feed inlet (31), characterized in that: The rod mill rod feeding and taking device includes a rod feeding and taking mechanism (1) for extending into the cylinder (3) from the feed inlet (31) and a rod feeding and taking assembly (2) for conveying steel rods (7) between the rod feeding and taking mechanism (1) and the cylinder (3). The rod feeding and taking mechanism (1) has a rod feeding and taking port (4) on one side. The rod feeding and taking assembly (2) includes a first conveying arm (21) and a second conveying arm (22). One end of the first conveying arm (21) is hinged to one side of the rod feeding and taking port (4), and one end of the second conveying arm (22) is hinged to the other end of the first conveying arm (21). The rod feeding and taking mechanism (1) is provided with a first limiting part (5) for limiting the rotation angle of the first conveying arm (21) outward from the rod feeding and taking port (4). The first conveying arm (21) is provided with a second limiting part (6) for limiting the rotation angle of the second conveying arm (22) outward from the rod feeding and taking port (4).

2. The rod mill rod feeding and taking device according to claim 1, characterized in that: The bar conveying mechanism (1) includes a first fixed plate (11), a second fixed plate (12) and a bar conveying channel (13). The bar conveying channel (13) is fixed between the first fixed plate (11) and the second fixed plate (12) and passes through the middle of the first fixed plate (11) for conveying steel bars (7). The bar inlet (4) is located on one side of the bar conveying channel (13). The first fixed plate (11) and the second fixed plate (12) are used to fix the bars at both ends of the cylinder (3) respectively.

3. The rod mill rod feeding and taking device according to claim 2, characterized in that: The first fixed disk (11) and the second fixed disk (12) are coaxial.

4. The rod mill rod feeding and taking device according to claim 2, characterized in that: Bolt holes (8) are provided on the periphery of the first fixing plate (11) and the second fixing plate (12).

5. The rod mill rod feeding and taking device according to claim 2, characterized in that: The rod conveying channel (13) is a groove-shaped channel with a small bottom inlet and outlet (4) and a large outlet.

6. The rod mill rod feeding and unloading device according to claim 5, characterized in that: The two sides of the rod feeding channel (13) are arranged in a figure-eight shape.

7. The rod mill rod feeding and unloading device according to any one of claims 1 to 6, characterized in that: When the first conveying arm (21) comes into contact with the first limiting part (5), the angle α between the first conveying arm (21) and the corresponding inner side of the conveying bar channel (13) is 135°~225°.

8. The rod mill rod feeding and taking device according to any one of claims 1 to 6, characterized in that: When the second transmission arm (22) comes into contact with the second limiting part (6), the angle β between it and the first transmission arm (21) is 135°~180°.

9. A method for adding rods to a rod mill, characterized in that: The rod mill with rod-removing device according to any one of claims 1 to 8 is used, comprising the following steps: S1. Insert the bar conveying mechanism (1) into the cylinder (3) from the feed port (31) and fix it to the cylinder (3); S2. The bar conveying mechanism (1) conveys steel bars (7) into the cylinder (3) with the bar inlet (4) facing upward. At this time, the first conveying arm (21) is in the initial state of covering the bar inlet (4) under the action of gravity. S3. The cylinder (3) drives the bar conveying mechanism (1) to rotate in the forward direction. First, the first conveying arm (21) rotates outward from the bar inlet (4) under the action of gravity until it abuts against the first limiting part (5) and the second conveying arm (22) rotates outward from the bar inlet (4) under the action of gravity until it abuts against the second limiting part (6). At this time, the first conveying arm (21) is higher than the second conveying arm (22), and the first conveying arm (21) and the second conveying arm (22) form an inclined bar-adding guide track (9). Then, the steel bars (7) in the bar conveying mechanism (1) are poured out through the bar inlet (4) and rolled along the bar-adding guide track (9) to the bottom of the cylinder (3). S4. When the infeed and outfeed bar conveying mechanism (1) rotates forward until the first conveying arm (21) returns to its initial state, stop rotating.

10. A method for removing rods from a rod mill, characterized in that: The rod mill with rod-removing device according to any one of claims 1 to 8 is used, comprising the following steps: Y1. Insert the inlet and outlet rod conveying mechanism (1) into the cylinder (3) from the feed port (31) and fix it to the cylinder (3). At this time, the inlet and outlet rod port (4) faces upward, and the first conveying arm (21) is in the initial state of covering the inlet and outlet rod port (4) under the action of gravity. Y2, the cylinder (3) drives the bar conveying mechanism (1) to rotate in the negative direction; first, the first conveying arm (21) rotates outward from the bar inlet (4) under the action of gravity until it abuts against the second limiting part (6). At this time, the first conveying arm (21) also abuts against the steel bar (7) inside the cylinder (3); then, the second conveying arm (22) rotates outward from the bar inlet (4) under the action of gravity until it abuts against the second limiting part (6). At this time, the second conveying arm (22) also abuts against the steel bar (7) inside the cylinder (3); then... The first conveyor arm (21) and the second conveyor arm (22) rotate and push the steel rod (7) inside the cylinder (3) upward; then the second conveyor arm (22) is made higher than the first conveyor arm (21), and the first conveyor arm (21) and the second conveyor arm (22) form an inclined rod exit guide track (91). The steel rod (7) to be taken out rolls along the rod exit guide track (91) to the rod inlet and outlet conveying mechanism (1); finally, when the rod inlet and outlet port (4) returns to the initial upward state, the rod inlet and outlet conveying mechanism (1) stops rotating. Y3. The bar conveying mechanism (1) outputs the steel bars (7) that need to be taken out, and then rotates in the forward direction to send the steel bars (7) that do not need to be taken out back into the cylinder (3).

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