Novel cross saddle device for small coil unloading

Abstract

The application discloses a novel steel coil cross saddle device which can be used for unloading small coils, comprising three fixed saddles which are arranged in a product letter shape at intervals, one of the fixed saddles is arranged on a middle position, and the other two fixed saddles are symmetrically arranged, and each fixed saddle is movably connected with an opening-adjustable saddle through a driving oil cylinder; a first conveying channel is formed between the two symmetrically arranged fixed saddles, and a second conveying channel is formed between the middle fixed saddle and the other two fixed saddles. Through cooperation of the opening-adjustable saddles, the steel coil with a minimum diameter of D500mm can be smoothly unloaded, and it is not necessary to reach D900mm in coil diameter or to manually participate in wood block padding at the cross saddle position, the device is simple and convenient to operate, the automatic rate of the device is improved, the material forming of the unit is improved, the labor intensity of the personnel is reduced, the safety hidden danger risk during unloading of the small coil is reduced, the steel coil cross saddle device occupies the same area as the original saddle, the device is convenient to maintain, is high in safety, and has a very wide popularization prospect.

Description

Technical Field

[0001] This invention relates to the field of metallurgical rolling auxiliary equipment technology, and in particular to a novel steel coil cross saddle device that can be used for unloading small coils. Background Technology

[0002] In modern high-speed cold rolling mills, to ensure stable production and strip quality, it is necessary to stop the mill for replacement of work rolls and intermediate rolls. Each time production resumes after roll replacement, approximately 20-30 meters of strip will produce scrap steel with inconsistent thickness and shape, failing to meet product requirements. This scrap steel needs to be spun into smaller coils and treated as waste. These smaller coils are unloaded from the drum via an unloading trolley, transported to the cross saddle position, and then exit the cross saddle area after unloading. The walking beam then moves to the cross saddle position, conveying the smaller coil to the overhead crane position, where it is lifted off the mill. The cross saddle is located at the intersection of the unloading trolley and the walking beam. It must simultaneously allow the unloading trolley and walking beam to pass smoothly to complete the unloading and reeling operations, without interfering with or colliding with the smaller coil during unloading and reeling, thus preventing coil overturning accidents. Currently, the mainstream design for export cross saddles is a fixed opening. For example, the width of the unloading trolley saddle is designed to be 550mm. To prevent collisions caused by shaking during equipment operation, a safety distance of 25mm is reserved on each side. The opening size of the cross saddle towards the unloading trolley's movement needs to be 600mm. After the small coil is placed on the cross saddle, the walking beam connects the coil. A certain safety distance must be maintained between the walking beam saddle and the lowest point of the small coil to prevent the walking beam from colliding with the steel coil and causing a rollover accident during the connection operation. When a safety distance of 30.8mm is maintained between the lowest point of the small coil and the walking beam saddle, the minimum size of the small coil needs to reach D900mm. If scrap steel that does not meet product requirements needs to be removed each time production is restarted after a shutdown, and the minimum coil diameter needs to reach D900mm to ensure that the small coil can safely pass through the cross saddle, a large amount of finished steel strip will be forced to be bundled into the small coil and treated as scrap steel, resulting in huge economic losses.

[0003] To reduce losses, when unloading small coils, wooden blocks are manually placed at the cross saddle position to reduce the opening size of the cross saddle towards the unloading trolley. This raises the lowest point of the small coil on the cross saddle, preventing the walking beam saddle from hitting the steel coil when the walking beam is connecting the coils. This method can reduce the minimum coil diameter requirement to D620mm, which can alleviate economic losses to some extent. However, it requires operator intervention, which not only increases the labor load of personnel but also poses certain safety hazards. Therefore, a new type of steel coil cross saddle device is needed to solve the problem of unloading small coils. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a novel steel coil cross saddle device that can be used for unloading small coils, enabling the receiving and unloading of normal coils and waste small coils, ensuring personnel safety, and preventing damage to the saddle.

[0005] According to a first aspect of the present invention, a novel steel coil cross saddle device for unloading small coils includes a first fixed saddle, a second fixed saddle, and a third fixed saddle arranged in a triangular pattern. The third fixed saddle is located in the center position. The first fixed saddle and the second fixed saddle are symmetrically arranged about the central axis of the third fixed saddle. A first opening adjustable saddle is movably connected to the first fixed saddle via a first driving cylinder. A second opening adjustable saddle is movably connected to the second fixed saddle via a second driving cylinder. A third opening adjustable saddle is movably connected to the third fixed saddle via a third driving cylinder. A first transport channel is formed between the first fixed saddle and the second fixed saddle, and a second transport channel is formed between the third fixed saddle, the first fixed saddle, and the second fixed saddle.

[0006] The novel steel coil cross saddle device for unloading small coils according to embodiments of the present invention has at least the following beneficial effects: By adjusting the opening of the saddle with various opening degrees, steel coils with a minimum diameter of D500mm can be smoothly unloaded. When unloading small coils, it is not necessary to have a coil diameter of D900mm or to manually place wooden blocks at the cross saddle position. The equipment is simple and convenient to operate, improves the automation rate of the equipment, increases the yield of the unit, and also reduces the labor intensity of personnel and the safety risks when unloading small coils. The cross saddle device for steel coils occupies the same area as the original saddle. The equipment is easy to maintain, has high safety, and has a very broad prospect for promotion.

[0007] According to some embodiments of the present invention, a first liner is connected to one end of the third adjustable saddle, a second liner is connected to the other end of the third adjustable saddle, a third liner is connected to one end of the first adjustable saddle facing the third adjustable saddle, and a fourth liner is connected to one end of the second adjustable saddle facing the third adjustable saddle. The first liner, the second liner, the third liner, and the fourth liner form a support position for supporting the small roll.

[0008] According to some embodiments of the present invention, the first fixed saddle is provided with a first support rail and a first slider slidably connected to the first support rail, the first opening adjustable saddle is fixedly connected to the first slider, and the first driving cylinder is connected to the first slider. The second fixed saddle is provided with a second support rail and a second slider slidably connected to the second support rail. The second opening adjustable saddle is fixedly connected to the second slider. The second drive cylinder is connected to the second slider. The third fixed saddle is provided with a third support rail and a third slider slidably connected to the third support rail. The third opening adjustable saddle is fixedly connected to the third slider. The third drive cylinder is connected to the third slider.

[0009] According to some embodiments of the present invention, a first saddle detection and limiting bracket is connected to the side of the first support rail near the first transport channel, and a first proximity switch is connected to the first saddle detection and limiting bracket; A second saddle detection limit bracket is connected to the side of the second support rail near the first transport channel, and a second proximity switch is connected to the second saddle detection limit bracket; A third saddle detection and limiting bracket is connected to the side of the third support track away from the first transport channel, and a third proximity switch is connected to the third saddle detection and limiting bracket.

[0010] According to some embodiments of the present invention, a buffer anti-collision component is connected to the side of the third fixed saddle facing the first transport channel, and buffer components are provided on the side of both the first fixed saddle and the second fixed saddle facing the first transport channel.

[0011] According to some embodiments of the present invention, the buffer anti-collision assembly includes a cylindrical body, a piston, a push rod, a first spring, and a sealing ring. The cylindrical body is hollow and has an opening on one end face. A spacer cylinder is disposed in the cylindrical body. One end of the spacer cylinder is fixedly and sealed to the bottom of the cylindrical body, and the other end of the spacer cylinder is sealed to the edge of the opening. The spacer cylinder divides the cylindrical body into a first chamber communicating with the opening and a second chamber surrounding the first chamber. A plurality of first through holes are formed on the circumferential sidewall of the spacer cylinder along the length of the cylinder. The first chamber is connected to the first through holes by the first through holes. The two chambers are connected, and the diameter of the multiple first through holes increases sequentially from the bottom of the first chamber towards the opening of the first chamber. The piston is slidably and sealingly connected to the inner wall of the spacer cylinder. One end of the push rod is fixedly connected to the piston, and the other end of the push rod extends out of the first chamber through the opening and faces the first transport channel. The sealing ring is slidably and sealingly fitted between the spacer cylinder and the cylinder body. The sealing ring divides the second chamber into an adjustment chamber and a medium chamber. The medium chamber is connected to the first chamber. The first spring is disposed in the adjustment chamber and is connected to the top and bottom of the adjustment chamber respectively. The adjustment chamber has a second through hole.

[0012] According to some embodiments of the present invention, the adjustment chamber is not in communication with the first chamber.

[0013] According to some embodiments of the present invention, a second spring is provided in the first chamber, and the two ends of the second spring are respectively connected to the bottom of the first chamber and the piston.

[0014] According to some embodiments of the present invention, the buffer assembly includes a rotating rod and a buffer block. A cavity is provided in the first fixed saddle, the rotating rod is vertically disposed in the cavity, and a rotating hole is provided on the buffer block. The buffer block is sleeved on the rotating rod by a reset torsion spring. One end of the buffer block is a collision end, and a plurality of rollers are rotatably connected from the collision end to the buffer block portion of the rotating hole at intervals. The other end of the buffer block is a friction end, and a wear-resistant layer is connected from the friction end to the buffer block portion of the rotating hole. In the initial state, the collision end extends out of the cavity and is located in the first transport channel, while the friction end is located in the cavity.

[0015] According to some embodiments of the present invention, the first transport channel and the second transport channel are arranged vertically.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of a novel steel coil cross saddle device that can be used to unload small coils according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the hydraulic control system of a novel steel coil cross saddle device for unloading small coils, according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the buffer and anti-collision component of a novel steel coil cross saddle device for unloading small coils, according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the buffer and anti-collision component of a novel steel coil cross saddle device for unloading small coils, according to another embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the buffer assembly of a novel steel coil cross saddle device for unloading small coils, according to an embodiment of the present invention.

[0022] 1. First fixed saddle; 2. Second fixed saddle; 3. Third fixed saddle; 4. First adjustable opening saddle; 5. Second adjustable opening saddle; 6. Third adjustable opening saddle; 7. First drive cylinder; 8. Second drive cylinder; 9. Third drive cylinder; 10. First proximity switch; 11. Second proximity switch; 12. Third proximity switch; 13. First hydraulic hose; 14. Second hydraulic hose; 15. Third hydraulic hose; 16. First liner; 17. Second liner; 18. Third liner; 19. Fourth liner; 20. 21. First directional valve; 22. First hydraulic check valve; 23. First flow regulating valve; 24. Second directional valve; 25. Second hydraulic check valve; 26. Second flow regulating valve; 27. Cylindrical body; 28. Piston; 29. ​​Push rod; 30. First spring; 31. Sealing ring; 32. Spacer cylinder; 33. First chamber; 34. Adjustment chamber; 35. Medium chamber; 36. First through hole; 37. Second through hole; 38. Second spring; 39. Rotating rod; 40. Buffer block; 41. Collision end; 42. Roller; 43. Friction end; 44. Wear-resistant layer. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are 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 limiting this invention.

[0025] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0027] refer to Figure 1 As shown, a novel steel coil cross saddle device for unloading small coils according to an embodiment of the present invention includes a first fixed saddle 1, a second fixed saddle 2, and a third fixed saddle 3 arranged in a triangular pattern. The third fixed saddle 3 is located in the center position. The first fixed saddle 1 and the second fixed saddle 2 are symmetrically arranged about the central axis of the third fixed saddle 3. A first opening adjustable saddle 4 is movably connected to the first fixed saddle 1 via a first driving cylinder 7. A second opening adjustable saddle 5 is movably connected to the second fixed saddle 2 via a second driving cylinder 8. A third opening adjustable saddle 6 is movably connected to the third fixed saddle 3 via a third driving cylinder 9. A first transport channel is formed between the first fixed saddle 1 and the second fixed saddle 2, and a second transport channel is formed between the third fixed saddle 3, the first fixed saddle 1, and the second fixed saddle 2.

[0028] In practical use, the adjustable saddle openings allow for the smooth unloading of steel coils with a minimum diameter of D500mm. When unloading smaller coils, there is no need for coil diameters reaching D900mm or for manual intervention to place wooden blocks at the cross saddle position. The equipment is simple and convenient to operate, improving the automation rate of the equipment and the yield of the unit. It also reduces the labor intensity of personnel and the safety risks during the unloading of smaller coils. The cross saddle device for steel coils occupies the same area as the original saddle, and the equipment is easy to maintain, highly safe, and has a very broad prospect for promotion.

[0029] In some specific embodiments of the present invention, the first transport channel and the second transport channel are arranged vertically. In this case, the unloading trolley unloads the coil along the first transport channel, and the walking beam transports the small coil along the second transport channel.

[0030] In some specific embodiments of the present invention, a first liner 16 is connected to one end of the third opening adjustable saddle 6, a second liner 17 is connected to the other end of the third opening adjustable saddle 6, a third liner 18 is connected to one end of the first opening adjustable saddle 4 facing the third opening adjustable saddle 6, and a fourth liner 19 is connected to one end of the second opening adjustable saddle 5 facing the third opening adjustable saddle 6. The first liner 16, the second liner 17, the third liner 18, and the fourth liner 19 form a support position for supporting the small roll.

[0031] Specifically, the material of each lining plate is rubber.

[0032] In some specific embodiments of the present invention, a first fixed saddle 1 is provided with a first support rail and a first slider slidably connected to the first support rail, a first opening adjustable saddle 4 is fixedly connected to the first slider, and a first drive cylinder 7 is connected to the first slider. The second fixed saddle 2 is provided with a second support rail and a second slider that is slidably connected to the second support rail. The second opening adjustable saddle 5 is fixedly connected to the second slider. The second drive cylinder 8 is connected to the second slider. The third fixed saddle 3 is provided with a third support rail and a third slider that is slidably connected to the third support rail. The third opening adjustable saddle 6 is fixedly connected to the third slider. The third drive cylinder 9 is connected to the third slider.

[0033] In some specific embodiments of the present invention, a first saddle detection and limiting bracket is connected to the side of the first support track near the first transport channel, and a first proximity switch 10 is connected to the first saddle detection and limiting bracket. A second saddle detection limit bracket is connected to the side of the second support rail closest to the first transport channel, and a second proximity switch 11 is connected to the second saddle detection limit bracket. A third saddle detection limit bracket is connected to the side of the third support track away from the first transport channel, and a third proximity switch 12 is connected to the third saddle detection limit bracket.

[0034] The real-time position of each adjustable saddle with different opening degrees is obtained through the aforementioned proximity switches.

[0035] refer to Figure 2As shown, in some specific embodiments of the present invention, the novel steel coil cross saddle device further includes a hydraulic control system. The hydraulic control system includes a first hydraulic hose 13, a second hydraulic hose 14, a third hydraulic hose 15, a first directional valve 20, a first hydraulically controlled check valve 21, a first flow regulating valve 22, a second directional valve 23, a second hydraulically controlled check valve 24, and a second flow regulating valve 25. The first directional valve 20, the first hydraulically controlled check valve 21, and the first flow regulating valve 22 are sequentially connected. The first directional valve 20 is connected to a hydraulic device (not shown in the figure), and the first flow regulating valve 22... The third hydraulic hose 15 is connected to the third drive cylinder 9; the second directional valve 23, the second hydraulic check valve 24, and the second flow regulating valve 25 are connected in sequence. The second directional valve 23 is connected to the hydraulic equipment. The second flow regulating valve 25 is connected to the first drive cylinder 7 and the second drive cylinder 8 through the first hydraulic hose 13 and the second hydraulic hose 14, respectively. The above-mentioned hydraulic equipment provides hydraulic power to the drive cylinder. The directional valve controls the movement of the drive cylinder by controlling the oil circuit reversal. The hydraulic check valve locks the position of the drive cylinder. The flow regulating valve controls the movement speed of the drive cylinder.

[0036] In the normal waiting state, the first reversing valve 20 and the second reversing valve 23 are not energized and are in the neutral position. All adjustable saddles are in the retracted state, and the opening size they form is consistent with the opening size formed by each fixed saddle. At this time, the proximity switch detects and displays the position of each adjustable saddle. When the unloading trolley transports a smaller diameter steel coil to the position of the new type of steel coil cross saddle device, the unloading trolley saddle is lowered to the appropriate position at low speed. The first reversing valve 20 and the second reversing valve 23 are energized, which in turn drives each drive cylinder to move each adjustable saddle, reducing the cross installation opening and lifting the smaller diameter steel coil. The unloading trolley continues to descend and retreat to the position, and the stepping beam is started to transport the coil. After the automatic stepping beam transport is completed, the first reversing valve 20 and the second reversing valve 23 switch, which drives each drive cylinder to move each adjustable saddle back to the waiting position, completing one unloading operation of a small coil.

[0037] The program sets relevant interlocking conditions. The opening operation interlock condition for the new type of steel coil cross saddle device is that there is no steel coil on the saddle seat; the closing operation interlock condition for the new type of steel coil cross saddle device is that the unloading trolley is outside the walking beam area or in the forward position, and the height of the unloading trolley saddle is within the set range requirement; if any of the detection positions of the proximity switches on the new type of steel coil cross saddle device shows a non-retracted state, the unloading trolley will stop at the position interlocked with the walking beam area and cannot move forward.

[0038] Because the unloading trolley bears a large load, in order to reduce the impact of the unloading trolley's inertia and even avoid the unloading trolley from losing control and colliding with the third fixed saddle 3, causing equipment damage, in some specific embodiments of the present invention, a buffer anti-collision component is connected to the side of the third fixed saddle 3 facing the first transport channel, and buffer components are provided on the side of the first fixed saddle 1 and the second fixed saddle 2 facing the first transport channel.

[0039] refer to Figure 3 As shown, in some specific embodiments of the present invention, the buffer anti-collision assembly includes a cylindrical body 26, a piston 27, a push rod 28, a first spring 29, and a sealing ring 30. The cylindrical body 26 is hollow and has an opening on one end face. A spacer cylinder 31 is disposed in the cylindrical body 26. One end of the spacer cylinder 31 is fixedly and sealed to the bottom of the cylindrical body 26, and the other end of the spacer cylinder 31 is sealed to the edge of the opening. The spacer cylinder 31 divides the cylindrical body 26 into a first chamber 32 communicating with the opening and a second chamber surrounding the first chamber 32. A plurality of first through holes 35 are formed on the circumferential sidewall of the spacer cylinder 31 along the length direction of the cylinder. The first chamber 32 passes through the first through holes 35. The first through holes 35 are connected to the second chamber. The diameter of the holes increases sequentially from the bottom of the first chamber 32 to the opening of the first chamber 32. The piston 27 is slidably and sealingly connected to the inner wall of the spacer cylinder 31. One end of the push rod 28 is fixedly connected to the piston 27. The other end of the push rod 28 extends out of the opening to the outside of the first chamber 32 and faces the first transport channel. The sealing ring 30 is slidably and sealingly fitted between the spacer cylinder 31 and the cylinder body 26. The sealing ring 30 divides the second chamber into an adjustment chamber 33 and a medium chamber 34. The medium chamber 34 is connected to the first chamber 32. The first spring 29 is set in the adjustment chamber 33 and is connected to the top and bottom of the adjustment chamber 33 respectively. The adjustment chamber 33 has a second through hole 36.

[0040] Specifically, the adjusting chamber 33 is not connected to the first chamber 32. More specifically, the first chamber 32 is filled with a pressurized medium. The pressurized medium can be air, water, oil, a water-oil mixture, or other gel-like mixtures. Simultaneously, the aforementioned pressurized medium can be introduced into the adjusting chamber 33 through the second through-hole 36 to adjust the extreme position of the sealing ring 30, thereby changing the stroke of the first chamber 32 and the medium chamber 34.

[0041] When the unloading trolley impacts or collides with the push rod 28 due to inertia, the push rod 28 will move towards the bottom of the first chamber 32, forcing the pressurized medium in the first chamber 32 to flow into the medium chamber 34 through the first through hole 35. Since the diameters of the multiple first through holes 35 increase sequentially from the bottom of the first chamber 32 towards its opening, as the push rod 28 moves towards the bottom of the first chamber 32, the piston 27 moves and gradually blocks the larger diameter first through holes 35. This gradually reduces the unit flow rate of the pressurized medium from the first chamber 32 to the medium chamber 34 per unit time, resulting in a significant retention effect. This leads to a gradual increase in the buffering force generated in the first chamber 32, which effectively buffers and prevents collisions caused by the inertial impact generated during the operation of the unloading trolley. The sealing ring 30 and the first spring 29 further buffer the inertial impact generated during the operation of the unloading trolley. After the unloading trolley exits, the first spring 29 forces the sealing ring 30 and the push rod 28 to reset. In other words, the buffer and anti-collision component can buffer the inertial impact of the unloading trolley and even prevent dangerous accidents caused by the unloading trolley going out of control. It is simple and ingenious, and has a better buffer and anti-collision effect than traditional rubber blocks.

[0042] refer to Figure 4 As shown, preferably, in order to improve the buffering effect, in some specific embodiments of the present invention, a second spring 37 is provided in the first chamber 32, and the two ends of the second spring 37 are respectively connected to the bottom of the first chamber 32 and the piston 27.

[0043] refer to Figure 5 As shown, in order to further improve the buffering effect, in some specific embodiments of the present invention, the buffer assembly includes a rotating rod 38 and a buffer block 39. A cavity is provided in the first fixed saddle 1, the rotating rod 38 is vertically arranged in the cavity, and a rotating hole is provided on the buffer block 39. The buffer block 39 is sleeved on the rotating rod 38 through a reset torsion spring (not shown in the figure). One end of the buffer block 39 is the collision end 40, and multiple rollers 41 are rotatably connected from the collision end 40 to the buffer block 39 portion with the rotating hole at intervals. The other end of the buffer block 39 is the friction end 42, and a wear-resistant layer 43 is connected from the friction end 42 to the buffer block 39 portion with the rotating hole. In the initial state, the collision end 40 extends out of the cavity and is located in the first transport channel, while the friction end 42 is located in the cavity.

[0044] When the unloading trolley is operating normally, the unloading trolley will contact the roller 41 and squeeze the buffer block 39. Since the unloading trolley is running at a normal low speed, the buffer block 39 is not subjected to a strong impact force. Therefore, the entire buffer block 39 will be slowly squeezed and rotated under the limit of the rotating rod 38. Then the friction end 42 slowly extends out of the cavity until the unloading trolley reaches the unloading position. Only then will the friction end 42 just abut against the side wall of the unloading trolley to stabilize the unloading trolley. When the unloading trolley exits the unloading position, the squeezing force on the buffer block 39 is reduced. Under the action of the reset torsion spring, the collision end 40 and the friction end 42 reset. When the unloading trolley is in an abnormal state and running at high speed, the unloading trolley impacts the buffer block 39 at high speed and overcomes the elastic force of the reset torsion spring, causing the entire buffer block 39 to rotate rapidly along the rotating rod 38. This causes the friction end 42 to quickly extend from the cavity and abut against the side wall of the unloading trolley over a large area, thereby generating resistance to the unloading trolley through friction. When used with the buffer anti-collision component, the buffer anti-collision effect can be further improved, enhancing the safety of the equipment.

[0045] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A novel steel coil cross saddle device for unloading small coils, characterized in that, The assembly includes a first fixed saddle (1), a second fixed saddle (2), and a third fixed saddle (3) arranged in a triangular pattern. The third fixed saddle (3) is positioned in the center. The first fixed saddle (1) and the second fixed saddle (2) are symmetrically arranged about the central axis of the third fixed saddle (3). A first adjustable saddle (4) is movably connected to the first fixed saddle (1) via a first drive cylinder (7). A second adjustable saddle (5) is movably connected to the second fixed saddle (2) via a second drive cylinder (8). A third adjustable saddle (6) is movably connected to the third fixed saddle (3) via a third drive cylinder (9). A first transport channel is formed between the first fixed saddle (1) and the second fixed saddle (2), and a second transport channel is formed between the third fixed saddle (3) and the first fixed saddle (1) and the second fixed saddle (2); The third fixed saddle (3) is connected to a buffer anti-collision component on the side facing the first transport channel, and the first fixed saddle (1) and the second fixed saddle (2) are both provided with buffer components on the side facing the first transport channel. The buffer anti-collision assembly includes a cylindrical body (26), a piston (27), a push rod (28), a first spring (29), and a sealing ring (30). The cylindrical body (26) is hollow and has an opening on one end face. A spacer cylinder (31) is provided in the cylindrical body (26). One end of the spacer cylinder (31) is fixedly and sealed to the bottom of the cylindrical body (26), and the other end of the spacer cylinder (31) is sealed to the edge of the opening. The spacer cylinder (31) divides the cylindrical body (26) into a first chamber (32) communicating with the opening and a second chamber surrounding the first chamber (32). A plurality of first through holes (35) are opened on the circumferential sidewall of the spacer cylinder (31) along the length direction of the cylinder. The first chamber (32) communicates with the second chamber through the first through holes (35). The diameter of the through hole (35) increases sequentially from the bottom of the first chamber (32) toward the opening of the first chamber (32). The piston (27) is slidably and sealed to the inner wall of the spacer cylinder (31). One end of the push rod (28) is fixedly connected to the piston (27). The other end of the push rod (28) extends through the opening to the outside of the first chamber (32) and faces the first transport channel. The sealing ring (30) is slidably and sealed between the spacer cylinder (31) and the cylinder body (26). The sealing ring (30) divides the second chamber into an adjustment chamber (33) and a medium chamber (34). The medium chamber (34) communicates with the first chamber (32). The first spring (29) is disposed in the adjustment chamber (33) and is connected to the top and bottom of the adjustment chamber (33) respectively. The adjustment chamber (33) has a second through hole (36).

2. The novel steel coil cross saddle device for unloading small coils according to claim 1, characterized in that, A first liner (16) is connected to one end of the third adjustable saddle (6), and a second liner (17) is connected to the other end of the third adjustable saddle (6). A third liner (18) is connected to one end of the first adjustable saddle (4) facing the third adjustable saddle (6), and a fourth liner (19) is connected to one end of the second adjustable saddle (5) facing the third adjustable saddle (6). The first liner (16), the second liner (17), the third liner (18), and the fourth liner (19) form a support position for supporting the small roll.

3. The novel steel coil cross saddle device for unloading small coils according to claim 2, characterized in that, The first fixed saddle (1) is provided with a first support rail and a first slider that is slidably connected to the first support rail. The first opening adjustable saddle (4) is fixedly connected to the first slider. The first drive cylinder (7) is connected to the first slider. The second fixed saddle (2) is provided with a second support rail and a second slider that is slidably connected to the second support rail. The second opening adjustable saddle (5) is fixedly connected to the second slider. The second drive cylinder (8) is connected to the second slider. The third fixed saddle (3) is provided with a third support rail and a third slider slidably connected to the third support rail. The third opening adjustable saddle (6) is fixedly connected to the third slider. The third drive cylinder (9) is connected to the third slider.

4. The novel steel coil cross saddle device for unloading small coils according to claim 3, characterized in that, A first saddle detection limit bracket is connected to the side of the first support rail near the first transport channel, and a first proximity switch (10) is connected to the first saddle detection limit bracket; A second saddle detection limit bracket is connected to the side of the second support rail near the first transport channel, and a second proximity switch (11) is connected to the second saddle detection limit bracket; A third saddle detection and limiting bracket is connected to the side of the third support track away from the first transport channel, and a third proximity switch (12) is connected to the third saddle detection and limiting bracket.

5. The novel steel coil cross saddle device for unloading small coils according to claim 1, characterized in that, The adjustment chamber (33) is not connected to the first chamber (32).

6. The novel steel coil cross saddle device for unloading small coils according to claim 5, characterized in that, A second spring (37) is provided in the first chamber (32), and the two ends of the second spring (37) are respectively connected to the bottom of the first chamber (32) and the piston (27).

7. The novel steel coil cross saddle device for unloading small coils according to claim 1, characterized in that, The buffer assembly includes a rotating rod (38) and a buffer block (39). A cavity is provided in the first fixed saddle (1). The rotating rod (38) is vertically arranged in the cavity. A rotating hole is provided on the buffer block (39). The buffer block (39) is sleeved on the rotating rod (38) by a reset torsion spring. One end of the buffer block (39) is a collision end (40). Multiple rollers (41) are rotatably connected from the collision end (40) to the buffer block (39) portion with the rotating hole. The other end of the buffer block (39) is a friction end (42). A wear-resistant layer (43) is connected from the friction end (42) to the buffer block (39) portion with the rotating hole. In the initial state, the collision end (40) extends out of the cavity and is located in the first transport channel, and the friction end (42) is located in the cavity.

8. The novel steel coil cross saddle device for unloading small coils according to claim 1, characterized in that, The first transport channel and the second transport channel are arranged vertically.

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