A steel billet cutting device with precise positioning

Abstract

A billet cutting device with precise positioning comprises a hydraulic shear and a conveyor roller conveyor. The hydraulic shear is positioned above the conveyor roller conveyor. A sizing unit is additionally provided. The sizing unit is positioned to one side of the conveyor roller conveyor and behind the hydraulic shear. The sizing unit comprises a displacement mechanism, a power mechanism, an arm mechanism, a material stop mechanism, and a base mechanism. The base mechanism is positioned to one side of the conveyor roller conveyor. The arm mechanism is mounted on the base mechanism and connected to a power mechanism mounted on the ground. The displacement mechanism is mounted on the arm mechanism. The material stop mechanism is mounted on the arm mechanism. This invention improves cutting length accuracy and product quality.

Description

Technical Field

[0001] The invention relates to a shearing device, in particular to a shearing device used for assisting hydraulic shears in shearing steel billets at a fixed distance, and belongs to the technical field of machine tool shearing. Background Art

[0002] In the production process of steel mills, the length of the produced steel billets is too long, exceeding the maximum length that the cooling bed can accommodate. At this time, the overlong steel billets need to be sheared. General steel mills use hydraulic shears to cut the steel billets into fixed-length steel billets. However, this method of cutting with hydraulic shears alone has poor precision and cannot guarantee the length of each section of the sheared steel billets. The billets cut by the hydraulic shears are of different lengths, and this difference in length size will be further increased in the later rolling process. The length of the finished steel after rolling will be different. Users have length requirements for purchasing finished steel. There are shorter steels in the finished steel that cannot meet the user's requirements. Therefore, it is necessary to select the finished steel that is greater than or equal to the length required by the user from the finished steel and then shear it. After the long finished steel is sheared into the length required by the user again, a part of the sheared residue will become scrap steel, which causes unnecessary waste. Therefore, a sizing device is needed that can assist the hydraulic shear in shearing the billets at a fixed distance during the first shearing, so as to avoid unnecessary waste. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a billet shearing device with precise positioning, which can not only improve the shearing accuracy of the billet but also save production costs.

[0004] The problem described in the present invention is solved by the following technical solutions:

[0005] A billet cutting device with precise positioning, the device comprises a hydraulic shear and a conveyor roller; the hydraulic shear is arranged above the conveyor roller; a fixed-length part is additionally provided; the fixed-length part is arranged on one side of the conveyor roller, and the fixed-length part is located behind the hydraulic shear; the fixed-length part comprises a displacement mechanism, a power mechanism, a support arm mechanism, a material blocking mechanism and a base mechanism; the base mechanism is arranged on one side of the conveyor roller; the support arm mechanism is arranged on the base mechanism, and the support arm mechanism is connected to the power mechanism arranged on the ground; the displacement mechanism is arranged on the support arm mechanism; the material blocking mechanism is arranged on the support arm mechanism; the base mechanism comprises a first base and a second base Two bases; the first base and the second base are both arranged on the same side of the conveyor roller, and a connecting rod is arranged in the middle; the arm mechanism includes an active first arm, an active second arm, an active third arm, a driven first arm and a driven second arm; the active first arm is arranged on the first base; the active third arm is fixed on the connecting rod; the power mechanism is connected to the active first arm; the active first arm and the active third arm are connected through the active second arm; the driven first arm is arranged on the connecting rod; a screw is arranged between the driven first arm and the active third arm; the driven second arm is arranged on the screw and the connecting rod.

[0006] The above-mentioned billet cutting device with precise positioning, the displacement mechanism includes a screw nut and a motor; the screw nut is arranged on the driven second arm; the motor is arranged on the driven first arm, and the motor and the screw are transmitted by a chain; the screw passes through the screw nut of the driven second arm; the driven second arm is provided with a through hole, and this through hole is used to pass the connecting rod.

[0007] The above-mentioned billet cutting device with precise positioning, the power mechanism includes a cylinder; the cylinder includes a cylinder barrel and a piston rod; the piston rod is arranged in the cylinder barrel; the cylinder barrel of the cylinder is arranged on the ground; the piston rod and one end of the active first support arm are hinged.

[0008] The above-mentioned steel billet cutting device with precise positioning is provided with a material blocking mechanism at one end of the driven second arm and a counterweight at the other end; the material blocking mechanism includes a material blocking plate and a buffer spring; the material blocking plate is provided at one end of the driven second arm through the buffer spring.

[0009] The above-mentioned billet cutting device with precise positioning is additionally provided with a sensing part; the sensing part includes an infrared transmitter, an infrared receiver, a touch pressure sensor and a PLC; the infrared transmitter is arranged on the side of the material baffle, and is arranged in conjunction with the infrared receiver arranged on the side of the conveyor roller; there are multiple infrared receivers, which are evenly arranged along the conveyor roller, and the distance between each infrared receiver and the hydraulic shear is different; the output signal of the infrared receiver is connected to the signal input end of the PLC via an A / D converter; the touch pressure sensor is arranged on the driven second arm, and is arranged in conjunction with the material baffle; the output signal of the touch pressure sensor is connected to the signal input end of the PLC via an A / D converter; the output signal of the PLC is connected to the start switch of the hydraulic shear and the conveyor roller via a D / A converter.

[0010] The present invention effectively blocks the steel billet at a specific position through the cooperation of the support arm mechanism and the material blocking mechanism, and then the hydraulic shears are used to cut the steel billet. The sheared steel billet can meet the required length and has high precision. This greatly improves product quality and avoids the waste of scrap steel caused by the uneven cutting length of steel billets in the past.

[0011] In addition, the present invention is also provided with a displacement mechanism, and the blocking mechanism arranged on the support arm mechanism can be displaced by the displacement mechanism, thereby adjusting the distance between the blocking mechanism and the hydraulic shear, so that the length of the sheared steel billet can also be controlled, and it can be sheared according to the desired length, thereby improving production flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of the fixed length portion of the present invention;

[0013] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0014] Figure 3 This is a schematic diagram of the state change structure of the cross-sectional view A of the present invention.

[0015] The list of numbers in the figure is: 1. Hydraulic shear, 2. Conveyor roller, 3. Displacement mechanism, 3-1. Screw nut, 3-2. Electric motor, 4. Power mechanism, 4-1. Cylinder, 4-2. Piston rod, 5. Arm mechanism, 5-1. Active first arm, 5-2. Active second arm, 5-3. Active third arm, 5-4. Driven first arm, 5-5. Driven second arm, 6. Material stop mechanism, 7. Base mechanism, 7-1. First base, 7-2. Second base, 8. Screw, 9. Connecting rod, 10. Infrared transmitter, 11. Infrared receiver, 12. Warning light. DETAILED DESCRIPTION

[0016] See Figure 1 、 2and Figure 3 The present invention includes a hydraulic shear 1 and a conveyor roller 2; the hydraulic shear 1 is arranged above the conveyor roller 2 and is used to cut the steel billet; in order to cut the steel billet of a specified length, a fixed-length part is arranged behind the hydraulic shear 1. When the steel billet moves on the conveyor roller 2, it first passes through the hydraulic shear 1 and then passes through the fixed-length part; the distance between the fixed-length part and the hydraulic shear 1 is the required length of the steel billet; the fixed-length part is arranged on one side of the conveyor roller 2; the fixed-length part includes a displacement mechanism 3, a power mechanism 4, and an arm mechanism 5. The material blocking mechanism 6 and the base mechanism 7; the base mechanism 7 is arranged on one side of the conveyor roller 2, and the base is used to fix the fixed length part so that it is firmly set on the foundation; the arm mechanism 5 is arranged on the base mechanism 7, and the arm mechanism 5 is connected to the power mechanism 4 set on the ground; the displacement mechanism 3 is arranged on the arm mechanism 5; the material blocking mechanism 6 is arranged on the arm mechanism 5; the base mechanism 7 includes a first base 7-1 and a second base 7-2; the first base 7-1 and the second base 7-2 are both arranged on The support arm mechanism 5 includes an active first support arm 5-1, an active second support arm 5-2, an active third support arm 5-3, a driven first support arm 5-4 and a driven second support arm 5-5; the active first support arm 5-1 is axially connected to the first base 7-1, and the center point of the active first support arm 5-1 is axially connected to the first base 7-1, and the active first support arm 5-1 can rotate around the center point; the active third support arm 5-3 is fixed on the connecting rod 9; the power Mechanism 4 is connected to the active first arm 5-1; the active first arm 5-1 and the active third arm 5-3 are connected through the active second arm 5-2; the driven first arm 5-4 is set on the connecting rod 9, and the driven first arm 5-4 is fixed on the connecting rod 9. When the connecting rod 9 rotates, the driven first arm 5-4 will also rotate together; a screw 8 is set between the driven first arm 5-4 and the active third arm 5-3; the driven second arm 5-5 is set on the screw 8 and the connecting rod 9.

[0017] In order to ensure that the fixed-length part can be adjusted to the distance between it and the hydraulic shear, thereby adjusting the shearing length of the steel billet, a displacement mechanism 3 is additionally provided; the displacement mechanism 3 includes a lead screw nut 3-1 and a motor 3-2; the lead screw nut 3-1 is arranged on the driven second arm 5-5; the motor 3-2 is arranged on the driven first arm 5-4, and the motor 3-2 and the lead screw 8 are driven by a chain; when the motor 3-2 is started, the output end of the motor 3-2 is driven by the chain and the sprocket on the lead screw nut 3-1, and the lead screw nut 3-1 rotates on the lead screw 8, thereby driving the driven second arm 5-5 to move, thereby achieving the purpose of moving the fixed-length part; the lead screw 8 is passed through the lead screw nut 3-1 of the driven second arm 5-5; a through hole is provided on the driven second arm 5-5, and this through hole is used to pass through the connecting rod 9, and the driven second arm 5-5 can move back and forth on the connecting rod 9.

[0018] In order to provide the power for the support arm mechanism 5 to move, an oil cylinder is provided; the oil cylinder includes a cylinder barrel 4-1 and a piston rod 4-2; the piston rod 4-2 is arranged in the cylinder barrel 4-1; the cylinder barrel 4-1 of the oil cylinder is arranged on the ground surface; the piston rod 4-2 and one end of the active first support arm 5-1 are hinged; when the driven second support arm 5-5 needs to move down to block the steel billet, the piston rod 4-2 is retracted, and at this time, one end of the active first support arm 5-1 connected to the piston rod 4-2 moves down, and the end of the active first support arm 5-1 connected to the active second support arm 5-2 moves up, and at this time, the other end of the active second support arm 5-2 also moves up, and the end of the active third support arm 5-3 connected to the active second arm 5-2 also moves up, and the other end of the active third support arm 5-3 is connected to the first base 7-1 due to the axis, and the active third support arm 5-3 moves up and rotates around the axis. At this time, the active third support arm 5-3 connected to the active third support arm 5- 3 also moves upward, because the other end of the connecting rod 9 is connected to the driven first arm 5-4, and the driven first arm 5-4 rotates around the connecting rod 9 as the axis; and a driven second arm 5-5 is provided between the driven first arm 5-4 and the active third arm 5-3, and the driven second arm 5-5 is provided on the connecting rod 9 and the screw 8. Because the connecting rod 9 and the screw 8 are provided between the active third arm 5-3 and the driven first arm 5-4, when the active third arm 5-3 and the driven first arm 5-4 rotate synchronously, the driven second arm 5-5 provided on the connecting rod 9 and the screw 8 also rotates accordingly; thereby making the driven second arm 5-5 rotate and contact to the conveying roller 2; when the steel billet needs to enter the next process and the driven second arm 5-5 needs to move up, the piston rod 4-2 is extended, and the driven second arm 5-5 can rotate back to its original position and no longer blocks the movement of the steel billet.

[0019] In order to prevent the steel billet from rebounding a certain distance after a rigid collision with the driven second arm 5-5 and affecting the length accuracy, a material blocking mechanism 6 is additionally provided; a material blocking mechanism 6 is provided at one end of the driven second arm 5-5, and a counterweight is additionally provided at the other end; the material blocking mechanism 6 includes a material blocking plate and a buffer spring; the material blocking plate is provided at one end of the driven second arm 5-5 through the buffer spring, and after the steel billet collides with the material blocking plate, it is buffered by the buffer spring, and the steel billet can stably stop in one position, thereby avoiding rebound caused by rigid collision.

[0020] In order to realize more automated production, a sensing part is provided; the sensing part includes an infrared transmitter 10, an infrared receiver 11, a touch pressure sensor, a prompt light 12 and a PLC; the prompt light 12 is provided on the driven second arm 5-5; the output signal of the PLC is connected to the prompt light 12 via a D / A converter; the infrared transmitter 10 is provided on the side of the material baffle plate, and is provided in conjunction with the infrared receiver 11 provided on the side of the conveyor roller 2; there are multiple infrared receivers 11, which are evenly provided along the conveyor roller 2, and the distance between each infrared receiver 11 and the hydraulic shear 1 is different; the output signal of the infrared receiver 11 is connected to the signal input end of the PLC via an A / D converter; the touch pressure sensor is provided on the driven second arm 5-5, and is provided in conjunction with the material baffle plate; the output signal of the touch pressure sensor is connected to the signal input end of the PLC via an A / D converter; the output signal of the PLC is connected to the start switch of the hydraulic shear 1 and the conveyor roller 2 via a D / A converter.

[0021] When starting production, the staff adjusts the distance between the fixed length part and the hydraulic shear 1 to the required distance according to the billet length required by the user. The distance between each infrared receiver 11 and the hydraulic shear 1 is of different distance scales, which is also the length required by different users. When adjusting the distance between the driven second arm 5-5 and the hydraulic shear 1, the workers adjust the forward and reverse rotation of the motor 3-2 to adjust the displacement of the driven second arm 5-5, and each infrared receiver 11 corresponds to a prompt light 12. When the infrared light of the infrared transmitter 10 irradiates an infrared receiver 11, its corresponding prompt light 12 will light up, and the staff can know the purpose of adjusting the driven second arm according to the lit prompt light 12. What is the distance between the support arm 5-5 and the hydraulic shear 1, so continue to adjust the distance until it moves to the required distance; retract the piston rod 4-2, and at this time the driven second support arm 5-5 moves down and falls on the conveying roller 2; then turn on the control of the PLC, start the transmission roller 2, and the steel billet begins to move on the roller until it collides with the baffle plate. The touch pressure sensor behind the baffle plate is sensed and transmits the signal to the PLC, and the PLC stops the transmission power of the conveying roller 2 and stops the movement of the steel billet, and then stimulates the start switch of the hydraulic shear 1. After the hydraulic shear 1 completes cutting, the piston rod 4-2 is extended, and at this time the driven second support arm 5-5 moves up, and then the transmission roller 2 is started, thereby transmitting the sheared steel billet to the next process.

Claims

1. A billet shearing device with precise positioning, comprising a hydraulic shear (1) and a conveying roller (2); the hydraulic shear (1) is arranged above the conveying roller (2); and is characterized in that: A fixed-length part is added; the fixed-length part is arranged on one side of the conveying roller (2), and the fixed-length part is located behind the hydraulic shear (1); the fixed-length part includes a displacement mechanism (3), a power mechanism (4), an arm mechanism (5), a material blocking mechanism (6) and a base mechanism (7); the base mechanism (7) is arranged on one side of the conveying roller (2); the arm mechanism (5) is arranged on the base mechanism (7), and the arm mechanism (5) is connected to the power mechanism (4) arranged on the ground surface; the displacement mechanism (3) is arranged on the arm mechanism (5); the material blocking mechanism (6) is arranged on the arm mechanism (5); the base mechanism (7) includes a first base (7-1) and a second base (7-2); the first base (7-1) and the second base (7-2) are connected. The two bases (7-2) are both arranged on the same side of the conveying roller (2), and a connecting rod (9) is arranged between them; the arm mechanism (5) includes an active first arm (5-1), an active second arm (5-2), an active third arm (5-3), a driven first arm (5-4) and a driven second arm (5-5); the active first arm (5-1) is arranged on the first base (7-1); the active third arm (5-3) is fixed on the connecting rod (9); the power mechanism (4) is connected to the active first arm (5-1); the active first arm (5-1) and the active third arm (5-3) are connected via the active second arm (5-2); the driven first arm (5-4) is arranged on the connecting rod (9) A lead screw (8) is provided between the driven first arm (5-4) and the active third arm (5-3); the driven second arm (5-5) is provided on the lead screw (8) and the connecting rod (9); the displacement mechanism (3) comprises a lead screw nut (3-1) and a motor (3-2); the lead screw nut (3-1) is provided on the driven second arm (5-5); the motor (3-2) is provided on the driven first arm (5-4), and a chain transmission is provided between the motor (3-2) and the lead screw (8); the lead screw (8) passes through the lead screw nut (3-1) of the driven second arm (5-5); a through hole is provided on the driven second arm (5-5), and the through hole is used to pass the connecting rod (9); an induction part is additionally provided The sensing part includes an infrared transmitter (10), an infrared receiver (11), a touch pressure sensor, a prompt light (12) and a PLC; the prompt light (12) is arranged on the second driven arm (5-5); the output signal of the PLC is connected to the prompt light (12) via a D / A converter; the infrared transmitter (10) is arranged on the side of the baffle plate and is arranged in conjunction with the infrared receiver (11) arranged on the side of the conveying roller (2); the number of the infrared receivers (11) is multiple and evenly arranged along the conveying roller (2), and the distance between each infrared receiver (11) and the hydraulic shear (1) is different; the output signal of the infrared receiver (11) is connected to the signal input end of the PLC via an A / D converter;The touch pressure sensor is arranged on the driven second support arm (5-5) and is arranged in conjunction with the material blocking plate; the output signal of the touch pressure sensor is connected to the signal input end of the PLC via an A / D converter; the output signal of the PLC is connected to the start switch of the hydraulic shear (1) and the conveying roller (2) via a D / A converter.

2. The billet cutting device with precise positioning according to claim 1, characterized in that: The power mechanism (4) comprises an oil cylinder; the oil cylinder comprises a cylinder barrel (4-1) and a piston rod (4-2); the piston rod (4-2) is arranged in the cylinder barrel (4-1); the cylinder barrel (4-1) of the oil cylinder is arranged on the ground surface; the piston rod (4-2) and one end of the active first support arm (5-1) are hinged.

3. The billet cutting device with precise positioning according to claim 2, characterized in that: A material blocking mechanism (6) is provided at one end of the driven second support arm (5-5), and a counterweight is added at the other end; the material blocking mechanism (6) comprises a material blocking plate and a buffer spring; the material blocking plate is provided at one end of the driven second support arm (5-5) via the buffer spring.

Images