Flying shear device capable of rapidly switching shear modes

Abstract

The utility model discloses a flying shear device capable of rapidly switching shear modes, which comprises a base, a machine body is arranged on the base, a long arm and a shear arm are arranged at the front part of the machine body, a transmission shaft and a speed change mechanism are arranged in the machine body, the rear part of the machine body is connected with a motor through a telescopic coupling, and a first shear blade is arranged at one end of the shear arm. A second shear blade is arranged at one end of the long arm. The shearing machine is novel in structural design, the transmission shaft drives the shearing arm to rotate, the shearing arm can simultaneously drive the long arm to conduct crank rotation, when the shearing arm rotates, a rolled piece is sheared through the first shearing blade, when the long arm conducts crank rotation, the rolled piece is sheared through the second shearing blade, and the rotating speed of the transmission shaft in the machine body is changed through the speed change mechanism. Shearing of small-specification high-speed rolled pieces and large-specification low-speed rolled pieces is achieved, meanwhile, a production line does not need to be stopped, switching can be completed within one minute, convenience and rapidness are achieved, and time and labor are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bar and wire rod rolling, and particularly relates to a flying shear device with rapid shear mode switching. Background Technique

[0002] As an indispensable key device on the bar and wire rod continuous rolling line, the flying shear shears the continuously moving rolled piece. The specifications and speeds of the rolled pieces are different, and the corresponding requirements for the shearing capacity are also different. Small-sized rolled pieces require small shearing force and high speed; large-sized rolled pieces require large shearing force and low speed. For this, the flying shear has two shear modes: one is rotary shearing with small shearing force and high speed; the other is crank shearing with large shearing force and low speed. However, the current flying shears on the market are all equipped with two sets of shear attachments. When switching, the production line needs to be shut down, and the previous set needs to be manually removed and the other set needs to be installed. It takes about 4 hours for multiple people to complete the switching, which is time-consuming and laborious, and has a high labor intensity. Content of the Utility Model

[0003] In order to solve the above problems, the utility model provides a flying shear device with rapid shear mode switching.

[0004] The utility model is implemented as follows: a flying shear device with a fast switching of shearing modes comprises a base, a body is arranged on the base, the upper and lower ends of the front part of the body are horizontally and symmetrically fixed with a base, the base is hingedly connected to the short arm, the short arm rotates along the base within a certain angle, the other end of the short arm is hingedly connected to the long arm, the other end of the long arm is connected to one end of the shearing arm, the connection is firm and reliable, the shearing arm is located between the body and the long arm, a transmission shaft is horizontally arranged through the body and located at the middle position of the body, the transmission shaft corresponds to the position of the shearing arm and one end of the transmission shaft is fixedly connected to the middle position of the shearing arm, the shearing arm is driven to rotate by the transmission shaft, and the long arm is driven to rotate at the same time, the shearing arm rotates around the transmission shaft, a speed change mechanism is arranged in the body, and a telescopic coupling and The motor, the other end of the transmission shaft is connected to the motor through a speed change mechanism and a telescopic coupling, the transmission shaft is driven to rotate by the motor, the speed of the transmission shaft is adjusted by the speed change mechanism, and the motor and the speed change mechanism are connected by a telescopic coupling. A first shearing blade is fixedly provided at one end of the shearing arm, and the positions of the two first shearing blades correspond to each other. When the shearing arm rotates, the workpiece is sheared by the first shearing blade to cut the workpiece. The two first shearing blades rotate with the shearing arm without interference, avoiding contact between the first shearing blades. A second shearing blade is fixedly provided at one end of the long arm away from the short arm, and the positions of the two second shearing blades correspond to each other. When the long arm rotates, the workpiece is sheared by the second shearing blade to cut the workpiece. When the shearing arm rotates, the two second shearing blades crank with one end of the long arm without interference, avoiding contact between the second shearing blades.

[0005] The machine body is provided with frames vertically on both sides, and push rods are horizontally provided above the base and at the rear of the machine body. Both ends of the push rods are fixedly connected to the frames to ensure the stability of the frame state. A hydraulic rod mechanism is horizontally fixedly provided at the middle position of the push rod away from the machine body. The hydraulic rod mechanism is fixedly provided on the base to ensure the stability of the position of the hydraulic rod mechanism. The hydraulic rod mechanism drives the frames to move horizontally through the push rods. Two support platforms are horizontally and symmetrically fixedly provided on the frames located at the middle positions of both sides of the front of the machine body. The first The first roller and the second roller, in the initial state, the position of the first roller corresponds to the first shearing blade, the shearing point between the first shearing blades is located on the horizontal line between the first rollers, the fine-sized rolled piece moves horizontally along the first roller and is sheared by the first shearing blade, the position of the second roller corresponds to the second shearing blade, the shearing point between the second shearing blades is located on the horizontal line between the second rollers, the coarse-sized rolled piece moves horizontally along the second roller and is sheared by the second shearing blade, the hydraulic rod mechanism drives the frame plate to move, and then the support platform drives the first roller and the second roller to move horizontally.

[0006] Preferably, the input shaft of the speed change mechanism is connected to the transmission shaft of the motor through a telescopic coupling, and the motor provides power for the rotation of the transmission shaft in the machine body, thereby driving the shear arm and the long arm to rotate, and the speed of the transmission shaft in the machine body is changed by the speed change mechanism, thereby expanding the range of shearing specifications, and the position of the motor is fixed. The telescopic coupling can not only ensure the reliable connection between the motor and the speed change mechanism, but also adjust the position of the machine body as needed. The input shaft is sleeved with a first sleeve and a second sleeve of an integral structure, and the first sleeve and the second sleeve can both move along the input shaft and rotate with the input shaft, and the first sleeve is evenly provided with a plurality of first latch teeth, and the second sleeve is evenly provided with The gear train is constructed by a process of adjusting the speed of the transmission gear and the control gear of the first gear to a level that is adapted to the needs of the transmission gear. The gear train is constructed by a process of adjusting the speed of the transmission gear and the control gear to a level that is adapted to the needs of the transmission gear. The gear train is constructed by a process of adjusting the speed of the transmission gear and the control gear to a level that is adapted to the needs of the transmission gear.

[0007] Preferably, a transmission rod is horizontally arranged on the other side of the input shaft, and a sleeve rod is sleeved on the transmission rod. The sleeve rod moves along the transmission rod to ensure the reliability of the movement of the sleeve rod. A clamping block is fixedly arranged on the sleeve rod. The clamping block is located at both ends of the first sleeve to limit the position of the first sleeve. One end of the sleeve rod is connected to an electric reciprocating mechanism, which drives the sleeve rod to reciprocate along the transmission rod through the electric reciprocating mechanism.

[0008] Preferably, the upper end of the base is located on both sides of the frame plate and has multiple sets of locking hydraulic cylinders fixedly arranged horizontally and symmetrically. When the frame plate is moved to a specified position, the ends of the locking hydraulic cylinders are tightly abutted against the lower end of the frame plate to ensure the stability of the frame plate position.

[0009] Preferably, a slot is horizontally provided at the end of the long arm close to one side of the machine body, and a block is horizontally fixedly provided at the end of the shear arm away from the machine body. The position of the block corresponds to the slot and they are the same size. The block is arranged in the slot to ensure a reliable connection between the long arm and the shear arm.

[0010] Preferably, the first shearing blade is connected to the shearing arm by bolts, and the second shearing blade is connected to the long arm by bolts, which is both firmly and reliably connected and easy to disassemble and assemble, making it easy to disassemble and replace the first shearing blade and the second shearing blade.

[0011] Preferably, the maximum telescopic stroke of the telescopic coupling, the maximum reciprocating stroke of the hydraulic rod mechanism, the center distance between the first idler and the second idler, and the center distance between the first shear blade and the second shear blade are all the same, ensuring the shearing effect on the rolled piece.

[0012] The beneficial effects of the present utility model are as follows: The present utility model has a novel structural design. The shearing arm is driven to rotate by the transmission shaft, and the shearing arm can simultaneously drive the long arm to perform crank rotation. When the shearing arm rotates, the rolled piece is sheared by the first shear blade. When the long arm performs crank rotation, the rolled piece is sheared by the second shear blade. The rotational speed of the transmission shaft in the machine body is changed through the speed change mechanism, enabling the flying shear to have two reduction ratios (i = 6 / i = 3), respectively to realize the shearing of small-sized high-speed rolled pieces and large-sized low-speed rolled pieces, expanding the shearing specification from ∮19 - ∮40mm to ∮19 - ∮80mm. At the same time, the production line does not need to stop, and the switching can be completed within 1 minute, which is convenient, fast, time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic side view structure diagram of the present utility model;

[0014] Figure 2 is a schematic front view structure diagram of the present utility model;

[0015] Figure 3 is a schematic top view connection structure diagram of the first roller and the second roller with the machine body;

[0016] Figure 4 is a schematic structure diagram of the speed change mechanism;

[0017] Figure 5 is a schematic connection structure diagram of the long arm and the shearing arm;

[0018] In the figure: 1. Base; 2. Machine body; 3. Pedestal; 4. Short arm; 5. Long arm; 6. Shearing arm; 7. Transmission shaft; 8. Speed change mechanism; 9. Telescopic coupling; 10. Motor; 11. First shear blade; 12. Second shear blade; 13. Bracket plate; 14. Push rod; 15. Hydraulic rod mechanism; 16. Support platform; 17. First roller; 18. Second roller; 19. Input shaft; 20. First sleeve; 21. Second sleeve; 22. First tooth; 23. Second tooth; 24. Output shaft; 25. First gear; 26. Second gear; 27. Transmission rod; 28. Sleeve rod; 29. Clamp block; 30. Electric reciprocating mechanism; 31. Locking hydraulic cylinder; 32. Card slot; 33. Card block; 34. Bolt. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to more clearly understand the technical solution of the present utility model, the present utility model will be further described below with reference to the drawings.

[0020] AsFigures 1-5The flying shear device with rapid switching of shear modes shown in the figure comprises a base 1, on which a body 2 is arranged, and bases 3 are horizontally and symmetrically fixedly arranged at the upper and lower ends of the front part of the body 2, and the base 3 is hingedly connected to a short arm 4, and the short arm 4 rotates within a certain angle along the base 3, and the other end of the short arm 4 is hingedly connected to a long arm 5, and the other end of the long arm 5 is connected to one end of a shearing arm 6, and the connection is firm and reliable. A slot 32 is horizontally provided at the end of the long arm 5 close to the side of the body 2, and a block 33 is horizontally fixedly arranged at the end of the shearing arm 6 away from the side of the body 2, and the block 33 corresponds to the position of the slot 32 and has the same size as that of the block 33, and the block 33 is arranged in the slot 32 to ensure a reliable connection between the long arm 5 and the shearing arm 6.The shearing arm 6 is located between the machine body 2 and the long arm 5. A transmission shaft 7 is horizontally arranged through the machine body 2 and at the middle position of the machine body 2. The transmission shaft 7 corresponds to the position of the shearing arm 6, and one end of the transmission shaft 7 is fixedly connected to the middle position of the shearing arm 6. The shearing arm 6 is driven to rotate by the transmission shaft 7, and at the same time, the long arm 5 is driven to rotate. The shearing arm 6 rotates around the transmission shaft 7. A speed change mechanism 8 is arranged in the machine body 2. A flexible coupling 9 and a motor 10 are arranged at the rear of the machine body 2. The other end of the transmission shaft 7 is connected to the motor 10 through the speed change mechanism 8 and the flexible coupling 9. The motor 10 drives the transmission shaft 7 to rotate. The rotation speed of the transmission shaft 7 is adjusted by the speed change mechanism 8. The flexible coupling 9 is used for connecting the motor 10 and the speed change mechanism 8. A first shear blade 11 is fixedly arranged at one end of the shearing arm 6. The positions of the two first shear blades 11 correspond to each other. When the shearing arm 6 rotates, the rolled piece is sheared by the first shear blades 11 and the rolled piece is cut off. The two first shear blades 11 rotate with the shearing arm 6 and do not interfere with each other, avoiding contact between the first shear blades 11. A second shear blade 12 is fixedly arranged at the end of the long arm 5 away from the short arm 4. The positions of the two second shear blades 12 correspond to each other. When the long arm 5 rotates, the rolled piece is sheared by the second shear blades 12 and the rolled piece is cut off. The two second shear blades 12 perform a crank motion with one end of the long arm 5 when the shearing arm 6 rotates and do not interfere with each other, avoiding contact between the second shear blades 12. Two support plates 13 are vertically arranged on both sides of the machine body 2. A push rod 14 is horizontally arranged above the base 1 and at the rear of the machine body 2. The two ends of the push rod 14 are fixedly connected to the support plates 13 to ensure the stability of the state of the support plates 13. A hydraulic rod mechanism 15 is horizontally and fixedly arranged at the middle position on the side of the push rod 14 away from the machine body 2. The hydraulic rod mechanism 15 is fixedly arranged on the base 1 to ensure the stability of the position of the hydraulic rod mechanism 15. The hydraulic rod mechanism 15 drives the support plates 13 to move horizontally through the push rod 14. Two support platforms 16 are horizontally and symmetrically fixedly arranged on the support plates 13 at the middle positions on both sides of the front part of the machine body 2. A first roller 17 and a second roller 18 are fixedly arranged side by side and symmetrically on the two support platforms 16. In the initial state, the first roller 17 corresponds to the position of the first shear blade 11. The shearing position between the first shear blades 11 is on the horizontal line between the first rollers 17. The rolled piece with a small specification moves horizontally along the first roller 17 and is cut off by the first shear blades 11. The second roller 18 corresponds to the position of the second shear blade 12. The shearing position between the second shear blades 12 is on the horizontal line between the second rollers 18. The rolled piece with a large specification moves horizontally along the second roller 18 and is cut off by the second shear blades 12. The hydraulic rod mechanism 15 drives the support plates 13 to move, and then the support platforms 16 drive the first roller 17 and the second roller 18 to move horizontally.The maximum telescopic stroke of the telescopic coupling 9, the maximum reciprocating stroke of the hydraulic rod mechanism 15, the center distance between the first idler 17 and the second idler 18, and the center distance between the first shear blade 11 and the second shear blade 12 are all the same, which is 235 mm, ensuring the shearing effect on the rolled piece.

[0021] The input shaft 19 of the speed change mechanism 8 is connected to the transmission shaft of the motor 10 through the telescopic coupling 9. The motor 10 provides power for the rotation of the transmission shaft 7 in the machine body 2, and then drives the shearing arm 6 and the long arm 5 to rotate. The speed of the transmission shaft 7 in the machine body 2 is changed through the speed change mechanism 8, thereby expanding the range of shearing specifications. The position of the motor 10 is fixed. The telescopic coupling 9 can not only ensure the reliable connection between the motor 10 and the speed change mechanism 8, but also adjust the position of the machine body 2 as needed. An integrated first sleeve 20 and a second sleeve 21 are sleeved on the input shaft 19. The first sleeve 20 and the second sleeve 21 can not only move along the input shaft 19, but also rotate with the input shaft 19. A plurality of first teeth 22 are uniformly arranged on the first sleeve 20, and a plurality of second teeth 23 are uniformly arranged on the second sleeve 21. A output shaft 24 is horizontally arranged on one side of the input shaft 19. A first gear 25 and a second gear 26 are fixedly arranged on the output shaft 24. The number of teeth of the first gear 25 is less than that of the second gear 26, which is convenient for adjusting the speed of the output shaft 24. The distance between the first gear 25 and the second gear 26 is greater than the sum of the lengths of the first sleeve 20 and the second sleeve 21, which is convenient for connecting the first gear 25 with the first teeth 22 and connecting the second gear 26 with the second teeth 23. The first gear 25 and the first teeth 22 can be engaged together. At this time, the output shaft 24 is at a high speed. The second gear 26 and the second teeth 23 can be engaged together. At this time, the output shaft 24 is at a low speed. The output shaft 24 is connected to the transmission shaft 7 in the machine body 2, driving the transmission shaft 7 in the machine body 2 to rotate. A transmission rod 27 is horizontally arranged on the other side of the input shaft 19. A sleeve rod 28 is sleeved on the transmission rod 27. The sleeve rod 28 moves along the transmission rod 27 to ensure the reliability of the movement of the sleeve rod 28. A clamping block 29 is fixedly arranged on the sleeve rod 28. The clamping block 29 is located at both ends of the first sleeve 20 to limit the position of the first sleeve 20. One end of the sleeve rod 28 is connected to an electric reciprocating mechanism 30. The electric reciprocating mechanism 30 drives the sleeve rod 28 to make a reciprocating motion along the transmission rod 27.

[0022] Three groups of locking hydraulic cylinders 31 are horizontally and symmetrically fixed on both sides of the upper end of the base 1 and located on both sides of the frame plate 13. When the frame plate 13 moves to the specified position, the end of the locking hydraulic cylinder 31 is closely abutted against the lower end of the frame plate 13 to ensure the stability of the position of the frame plate 13.

[0023] The first shearing blade 11 is connected to the shearing arm 6 by bolts 34, and the second shearing blade 12 is connected to the long arm 5 by bolts 34. This connection is not only firm and reliable but also convenient for disassembly and assembly, making it easy to disassemble and replace the first shearing blade 11 and the second shearing blade 12.

[0024] In the first initial state, the rolled piece with a small specification moves horizontally along the first rotating roller 17 and is cut by the first shearing blade 11. When the rolled piece with a large specification moves horizontally along the original position, the body 2 is driven to move to one side through the expansion coupling 9, and the support table 16 is driven to move to the same side through the hydraulic rod mechanism 15, so that the second shearing blade 12 and the second rotating roller 18 are corresponding to the position of the rolled piece with a large specification. The rolled piece with a large specification is carried by the second rotating roller 18 and is cut by the second shearing blade 12. In the second initial state, the rolled piece with a large specification moves horizontally along the second rotating roller 18 and is cut by the second shearing blade 12. When the rolled piece with a small specification moves horizontally along the original position, the body 2 is driven to move to the other side through the expansion coupling 9, and the support table 16 is driven to move to the same side through the hydraulic rod mechanism 15, so that the first shearing blade 11 and the first rotating roller 17 are corresponding to the position of the rolled piece with a small specification. The rolled piece with a small specification is carried by the first rotating roller 17 and is cut by the first shearing blade 11.

[0025] The above description is only the preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A flying shear device with fast switching of shearing modes, comprising a base, on which an organism is arranged, characterized in that: A base is fixedly arranged horizontally and symmetrically at the upper and lower ends of the front part of the machine body, the base is hingedly connected to the short arm, the other end of the short arm is hingedly connected to the long arm, the other end of the long arm is connected to one end of the shearing arm, the shearing arm is located between the machine body and the long arm, a transmission shaft is horizontally arranged through the machine body and located in the middle position of the machine body, the transmission shaft corresponds to the position of the shearing arm and one end of the transmission shaft is fixedly connected to the middle position of the shearing arm, the shearing arm rotates around the transmission shaft, a speed change mechanism is arranged in the machine body, a telescopic coupling and a motor are arranged at the rear of the machine body, the other end of the transmission shaft is connected to the motor through the speed change mechanism and the telescopic coupling, a first shearing blade is fixedly arranged at one end of the shearing arm, the positions of the two first shearing blades correspond, the two first shearing blades rotate with the shearing arm without interference, a second shearing blade is fixedly arranged at one end of the long arm away from the short arm, the positions of the two second shearing blades correspond, the two second shearing blades crank with one end of the long arm when the shearing arm rotates without interference, Frames are vertically arranged on both sides of the machine body, a push rod is horizontally arranged above the base and at the rear of the machine body, both ends of the push rod are fixedly connected to the frame plates, a hydraulic rod mechanism is horizontally fixedly arranged at the middle position of the push rod on the side away from the machine body, the hydraulic rod mechanism is fixedly arranged on the base, two support platforms are horizontally and symmetrically fixedly arranged on the frame plates located in the middle positions on both sides of the front of the machine body, a first roller and a second roller are symmetrically fixedly arranged on the two support platforms, the first roller corresponds to the position of the first shearing blade, the shearing point between the first shearing blades is located on the horizontal line between the first rollers, the second roller corresponds to the position of the second shearing blade, the shearing point between the second shearing blades is located on the horizontal line between the second rollers.

2. A flying shear device with rapid switching of shear modes according to claim 1, characterized in that: The input shaft of the speed change mechanism is connected to the transmission shaft of the motor through a telescopic coupling, and a first sleeve and a second sleeve of an integral structure are sleeved on the input shaft, a plurality of first latch teeth are evenly arranged on the first sleeve, and a plurality of second latch teeth are evenly arranged on the second sleeve. An output shaft is horizontally arranged on one side of the input shaft, and a first gear and a second gear are fixedly arranged on the output shaft, the number of teeth of the first gear is less than the number of teeth of the second gear, and the distance between the first gear and the second gear is greater than the sum of the lengths of the first sleeve and the second sleeve, the first gear and the first latch teeth can be meshed together, and the second gear and the second latch teeth can be meshed together, and the output shaft is connected to the transmission shaft in the machine body.

3. A flying shear device with rapid switching of shear modes according to claim 2, characterized in that: A transmission rod is horizontally arranged on the other side of the input shaft, a sleeve rod is sleeved on the transmission rod, a clamping block is fixedly arranged on the sleeve rod, the clamping block is located at both ends of the first sleeve, and one end of the sleeve rod is connected to the electric reciprocating mechanism.

4. A flying shear device with rapid switching of shear modes according to claim 1, characterized in that: The upper end of the base is located on both sides of the frame plate and a plurality of groups of locking hydraulic cylinders are fixedly arranged horizontally and symmetrically.

5. A flying shear device with rapid switching of shear modes according to claim 1, characterized in that: A slot is horizontally provided at the end of the long arm close to one side of the machine body, and a block is horizontally fixedly provided at the end of the shear arm away from the machine body. The block corresponds to the slot in position and has the same size as the slot, and the block is arranged in the slot.

6. A flying shear device with rapid switching of shear modes according to claim 1, characterized in that: The first shearing blade is connected to the shearing arm through bolts, and the second shearing blade is connected to the long arm through bolts.

7. A flying shear device with rapid switching of shear modes according to claim 1, characterized in that: The maximum telescopic stroke of the telescopic coupling, the maximum reciprocating stroke of the hydraulic rod mechanism, the center distance between the first roller and the second roller, and the center distance between the first shearing blade and the second shearing blade are all the same.

Images