Automatic shearing device for angle iron continuous processing production line

Abstract

The application relates to an automatic shearing device for an angle iron continuous processing production line, and belongs to the technical field of profile processing. The device comprises a body frame, an inverted V-shaped profile guide rail arranged at the top of the body frame, a feeding trolley slidably connected to the top of the body frame and used for pushing the angle iron, a plurality of groups of pressing members fixed to the top of the body frame, each group of the pressing members comprising two pressing rollers arranged in an eight-shaped mode and used for limiting the angle iron in cooperation with the profile guide rail, and a shearing mechanism fixed to one side of the body frame and comprising an upper cutting tool, a lower cutting tool and a driving motor II, wherein the driving motor II is used for driving the upper cutting tool and the lower cutting tool to approach each other so as to implement the butt shearing of the angle iron. Through the cooperation of the inverted V-shaped guide rail and the eight-shaped pressing roller, the accurate guidance and stable pressing of the angle iron are realized, and through the butt shearing mode of the upper and lower cutting tools, the shearing vibration and burrs are obviously reduced, and the shearing precision and the finished product quality are improved.

Description

Technical Field

[0001] This invention belongs to the field of profile processing technology and relates to an automatic shearing device for a continuous angle iron processing production line. Background Technology

[0002] Angle iron is a basic profile used in machinery manufacturing, construction, and production line assembly. Its fixed-length shearing is a key process in continuous angle iron processing production lines. The shearing accuracy, feeding stability, and continuous operation capability of the equipment directly affect the profile processing quality and the overall efficiency of the production line. Currently, most of the shearing devices used in angle iron production lines on the market are traditional and simple cutting equipment, which have obvious limitations in structural design and functional adaptability, making it difficult to meet the needs of modern continuous processing.

[0003] Most existing angle iron shearing devices use planar guide rails for their guiding structure, which cannot match the bending cross section of the angle iron itself for limiting. As a result, the angle iron is prone to lateral displacement, warping, and swaying during the conveying and shearing process, leading to low shearing positioning accuracy.

[0004] Moreover, existing shearing mechanisms generally adopt a single-blade downward shearing method, which concentrates the shearing impact force, resulting in greater vibration and noise of the whole machine. The huge impact load can easily cause the machine frame to loosen and the positioning parts to shift. Furthermore, single-sided shearing will cause the angle iron cut to be tilted and have more burrs. The debris generated by shearing vibration will fall directly into the gap of the guide rail. Without a matching automatic cleaning structure, long-term accumulation will block the angle iron conveying and affect the continuous and stable operation of the production line. Summary of the Invention

[0005] In view of this, in order to solve the above problems, the present invention provides an automatic shearing device for a continuous processing production line for angle iron.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic shearing device for a continuous angle iron processing production line, comprising: The fuselage frame has an inverted V-shaped profile guide rail fixedly installed on its top to guide the angle iron; A feeding trolley is slidably connected to the top of the machine frame. A pusher plate that matches the top of the profile guide rail is fixedly installed on one side of the feeding trolley for pushing angle iron. Multiple sets of clamping components are fixed to the top of the machine frame. Each set of clamping components includes two pressing rollers. The two pressing rollers are arranged in a figure-eight shape and cooperate with the profile guide rail to limit the angle iron during the conveying and shearing process. In addition, a shearing mechanism is fixedly installed on one side of the machine frame. The shearing mechanism includes an upper cutting tool, a lower cutting tool, and a drive motor II. The drive motor II is used to drive the upper cutting tool and the lower cutting tool to move closer to each other to perform counter-shearing on the angle iron.

[0007] As a further improvement to the above technical solution: The profile guide rail includes a guide rail base and a plurality of support brackets fixedly disposed on the top of the guide rail base, with a drainage groove formed between two adjacent support brackets for guiding and discharging oxide scale.

[0008] The clamping component also includes a mounting base fixed to the top of the fuselage frame, and the guide rail base is fixed to the top of the plurality of mounting bases; Both sides of the mounting base are provided with positioning rings, and a sleeve rod is detachably provided inside the positioning ring. A sliding rod is slidably provided inside the sleeve rod. Spring I is sleeved on the outer wall of the sliding rod. The two ends of spring I abut against the bottom end of the sliding rod and the top wall of the sleeve rod, respectively, to apply an elastic thrust to the sliding rod. The pressing roller is rotatably mounted on one end of the L-shaped sliding rod via a bearing, so as to press the angle iron under the elastic force of spring I.

[0009] Both sides of the mounting base are rotatably provided with a rotating shaft I. A guide ring is fixedly provided at the outer end of the rotating shaft I. The guide ring is slidably sleeved on the sleeve rod. The outer wall of the positioning ring is threaded with a fastening bolt for pressing and fixing the sleeve rod.

[0010] The shearing mechanism also includes a positioning plate fixed to one end of the machine frame. An upper sliding seat and a lower sliding seat are slidably arranged on the outer side of the positioning plate via guide rails. The upper cutting tool and the lower cutting tool are respectively fixed to one side of the upper sliding seat and the lower sliding seat. Two drive seats are rotatably mounted on one side of the positioning disk. Each drive seat has a connecting rod I rotatably mounted at both ends. The other ends of the two connecting rods I are respectively rotatably connected to the upper sliding seat and the lower sliding seat, so that the upper sliding seat and the lower sliding seat can slide synchronously in opposite directions.

[0011] Two guide rods are fixedly installed at one end of the fuselage frame. A transmission base is slidably sleeved on the outer wall of the two guide rods. The bottom end of the transmission base is fixedly connected to the upper sliding seat through a push-pull rod. A rotating shaft II is rotatably mounted through one side of the fuselage frame, and an eccentric wheel is sleeved on the outer wall of the rotating shaft II, which abuts against the top of the transmission base. The output end of the drive motor II is fixedly connected to one end of the rotary shaft II, and is used to drive the transmission base to slide along the guide rod.

[0012] The outer wall of the guide rod is fitted with an elastic element II, the two ends of which abut against the transmission base and the body frame, respectively, to provide a reset driving force for the transmission base.

[0013] It also includes a chip removal component, which includes a connecting pipe that passes through and is fixed to one side of the plurality of support brackets, and a plurality of spray heads that are connected to the connecting pipe and located in the drainage channel; A cylinder is fixedly installed at the bottom of the guide rail base, and a piston rod is slidably installed inside the cylinder; One end of the cylinder is connected to the sliding slide seat to convert the reciprocating sliding of the sliding slide seat into the reciprocating motion of the piston rod, thereby generating airflow and blowing air through the connecting pipe and the spray head to clean the guide groove.

[0014] One end of the piston rod is rotatably connected to a connecting rod II, and the other end of the connecting rod II is rotatably connected to a connecting base. The connecting base is fixed to one side of the sliding seat to realize the transmission connection between the sliding seat and the piston rod.

[0015] A baffle plate located at the top of the transmission rack is fixedly installed on one inner wall of the fuselage frame to prevent debris from falling into the meshing part of the transmission rack.

[0016] The beneficial effects of this invention are as follows: 1. The automatic shearing device for a continuous processing production line of angle iron disclosed in this invention uses an inverted V-shaped profile guide rail and a figure-eight arranged pressing roller to cooperate with each other. It achieves automatic centering and lateral limiting based on the cross-sectional shape of the angle iron itself. With the help of multiple sets of evenly distributed pressing components, an elastic pressing structure is formed. This can not only prevent the angle iron from shifting, warping, and shaking during the conveying and shearing process, effectively ensuring the positioning accuracy and consistency of the shearing size, but also reduce conveying friction and reduce scratches on the surface of the angle iron through the rolling action of the pressing roller. 2. The automatic shearing device for a continuous angle iron processing production line disclosed in this invention adopts a bidirectional counter-shearing form in which the upper and lower cutting tools move synchronously in opposite directions. The synchronous reverse movement of the upper and lower sliding seats is achieved through the drive seat and connecting rod I. The shearing force is concentrated and the cutting is highly efficient. Compared with the traditional single-sided downward pressure shearing, it can significantly reduce the deformation of angle iron, the burrs on the cross-section and the inclination of the cut, and improve the quality of the sheared finished product. At the same time, the forces generated by bidirectional shearing cancel each other out inside the mechanism, which can greatly reduce the vibration and noise of the whole machine and reduce the impact on the machine frame. 3. The automatic shearing device for a continuous angle iron processing production line disclosed in this invention, through the linkage between the chip removal component and the shearing mechanism, can directly drive the piston rod to slide in the cylinder by relying on the reciprocating motion of the sliding seat. With the help of the one-way valve, a stable air intake and exhaust airflow is formed. There is no need to add additional power components such as air pumps and motors. After the airflow is distributed to each spray head through the connecting pipe, it directly acts on the guide groove. With the gravity sliding effect of the guide groove, the oxide scale and iron chips can be cleaned and discharged in time, avoiding the accumulation of chips in the guide rail gaps, jamming of angle iron or affecting processing accuracy. It keeps the working surface of the guide rail clean and ensures the smoothness of the feeding and shearing process.

[0017] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a three-dimensional structural schematic diagram of an automatic shearing device for a continuous angle iron processing production line according to the present invention; Figure 2 This is a schematic diagram of the shearing mechanism of an automatic shearing device for a continuous angle iron processing production line according to the present invention; Figure 3 This is a schematic diagram of the feeding trolley structure of an automatic shearing device for a continuous angle iron processing production line according to the present invention; Figure 4 for Figure 3 Enlarged structural diagram of section A in the middle; Figure 5 This is a schematic diagram of the clamping component structure of an automatic shearing device for a continuous angle iron processing production line according to the present invention; Figure 6 This is a cross-sectional structural diagram of the sleeve rod of an automatic shearing device for a continuous angle iron processing production line according to the present invention; Figure 7 This is a partial structural diagram of the profile guide rail of an automatic shearing device for a continuous angle iron processing production line according to the present invention; Figure 8 This is a cross-sectional view of the cylinder of an automatic shearing device for a continuous angle iron processing production line according to the present invention.

[0019] Reference numerals: 1. Machine frame; 2. Profile guide rail; 21. Guide rail base; 22. Support bracket; 23. Drainage channel; 3. Clamping component; 31. Mounting base; 32. Rotary shaft I; 33. Guide ring; 34. Positioning ring; 35. Fastening bolt; 36. Sleeve rod; 37. Sliding rod; 38. Pressing roller; 39. Spring I; 4. Feeding trolley; 41. Pusher plate; 42. Drive motor I; 43. Transmission gear; 44. Transmission rack; 45. Baffle plate; 5. Shearing mechanism; 51. Positioning plate; 52. Upper sliding seat; 53. Upper 54. Cutting tool; 55. Lower sliding seat; 56. Lower cutting tool; 57. Drive seat; 58. Connecting rod I; 59. Guide rod; 50. Transmission base; 510. Push-pull rod; 511. Rotary shaft II; 512. Eccentric wheel; 513. Elastic element II; 514. Drive motor II; 6. Control unit; 70. Chip removal component; 71. Connecting pipe; 72. Injection head; 73. Cylinder block; 74. Piston rod; 75. Separator ring; 76. Air chamber; 77. Piston ring; 78. Connecting rod II; 79. Connecting base; 710. Exhaust port; 711. Intake port. Detailed Implementation

[0020] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0021] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures, and should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] Example 1

[0024] like Figures 1-7 As shown, an automatic shearing device for a continuous angle iron processing production line is assembled on one side of the receiving frame of the angle iron production line. The machine frame 1 serves as the load-bearing foundation of the entire device. The machine frame 1 is made of welded steel profiles and is used to bear the docking load of the production line and fix all functional components. A profile guide rail 2 is fixedly installed on the top of the machine frame 1. The profile guide rail 2 is set as an inverted V shape. The inclined surface of the inverted V shape fits snugly with the bending section of the angle iron, and the lateral limit is achieved by utilizing the structural shape of the angle iron itself to prevent the angle iron from shifting left and right during the conveying process. The profile guide rail 2 includes a guide rail base 21, which serves as the main load-bearing structure of the profile guide rail 2. The guide rail base 21 is fixed to the top of the machine frame 1 by bolts. Multiple support brackets 22 are evenly fixed to the top of the guide rail base 21. The support brackets 22 and the guide rail base 21 are integrally formed and are used to directly support the angle iron in the conveying state. A gap is reserved between two adjacent support brackets 22 to form a drainage channel 23. The direction of the drainage channel 23 is perpendicular to the conveying direction of the angle iron. The oxide scale generated during the movement falls into the drainage channel 23 under the action of gravity and is discharged outward along the extension path of the drainage channel 23, so as to avoid the accumulation of oxide scale on the conveying path of the angle iron and affect the feeding accuracy.

[0025] Multiple sets of clamping components 3 are installed on the top of the machine frame 1. The clamping components 3 are evenly distributed along the length of the profile guide rail 2 to cooperate with the profile guide rail 2 to achieve stable clamping of the angle iron. The clamping components 3 include mounting bases 31, which are fixed to the top of the machine frame 1 by bolts, providing a fixed foundation for all components of the clamping components 3. The bottom of the guide rail base 21 is fixedly connected to the top of the multiple mounting bases 31, which improves the installation stability of the profile guide rail 2. Rotary shafts I 32 are rotatably installed on both sides of the mounting bases 31. The rotary shafts I 32 can rotate around their own axis to open for loading. The outer end of the rotary shafts I 32 is fixedly connected to the guide sleeve 33. The guide sleeve 33 has a sliding positioning ring 34 inside. The positioning ring 34 can slide along the inner wall of the guide sleeve 33 to adjust its position to adapt to the clamping spacing of angle irons of different specifications. A threaded fastening bolt 35 is threaded through the outer wall of the positioning ring 34. A detachable sleeve rod 36 is installed inside the positioning ring 34. After tightening the fastening bolt 35, the end of the bolt abuts against the outer wall of the sleeve rod 36, securing the sleeve rod 36 through friction. Loosening the bolt allows the sleeve rod 36 to be removed from the positioning ring 34, simplifying subsequent maintenance and replacement. A sliding member 37 is slidably installed inside the sleeve rod 36. The sliding member 37 can slide up and down along the inner wall of the sleeve rod 36. The sleeve rod 36 provides directional sliding constraint for the sliding member 37. The sliding member 37 is L-shaped, and the L-shaped bending structure avoids interference with the angle iron's movement by allowing it to pass through the conveying space. A spring I 39 is sleeved on the outer wall of the sliding rod 37. The bottom end of the spring I 39 abuts against the bottom end of the sliding rod 37, and the top end of the spring I 39 abuts against the top wall of the sleeve rod 36. The spring I 39 continuously provides a downward elastic thrust to the sliding rod 37 through its own elastic deformation, transmitting the elastic pressure to the surface of the angle iron. One end of the sliding rod 37 is fitted with a pressure roller 38 through a bearing. Each set of pressing components 3 includes two pressure rollers 38, which are arranged in a V-shape with the opening of the V-shape facing the top of the profile guide rail 2. The pressure rollers 38 can rotate freely through the bearing, converting the sliding friction during angle iron conveying into rolling friction, reducing scratches on the surface of the angle iron. Under the elastic action of the spring I 39, the pressure rollers 38 continuously press against the surface of the angle iron, forming a limiting structure with the inverted V-shaped profile guide rail 2, ensuring the positional accuracy of the angle iron during conveying and shearing.

[0026] The feeding trolley 4 is mounted on the top of the machine frame 1 via a guide rail slider. The guide rail slider is fixed to the top surface of the machine frame 1, providing linear movement constraints for the feeding trolley 4 and ensuring that the feeding trolley 4 performs linear reciprocating motion along the angle iron conveying direction, thus preventing deviation of the pushing path. The bottom of the feeding trolley 4 is slidably connected to the guide rail slider, and a pusher plate 41 is fixed to one side of the feeding trolley 4. The bottom end of the pusher plate 41 is adapted to the top of the profile guide rail 2, and the end face of the pusher plate 41 forms a surface contact with the end of the angle iron, increasing the force-bearing area and preventing deformation of the angle iron end during pushing. A drive motor I 42 is fixed to one side of the feeding trolley 4, and a transmission rack 44 is fixed to the inner wall of one side of the machine frame 1. The transmission rack 44 extends along the moving direction of the feeding trolley 4. A transmission gear 43 is fixedly sleeved at the output end of the drive motor I 42. The transmission gear 43 meshes with the transmission rack 44. The rotational motion output by the drive motor I 42 is converted into linear motion through the meshing of the transmission gear 43 and the transmission rack 44, thereby driving the feeding trolley 4 to move as a whole and complete the automatic pushing operation of the angle iron. A baffle plate 45 is fixed to the inner wall of one side of the machine frame 1. The baffle plate 45 is located at the top of the transmission rack 44 and extends along the length of the transmission rack 44. It is used to prevent external debris and dust from falling into the meshing part of the transmission gear 43 and the transmission rack 44, avoiding foreign objects from getting stuck and affecting the transmission accuracy, and ensuring the continuous and stable operation of the transmission structure.

[0027] A shearing mechanism 5 is fixed on the side of the machine frame 1 near the receiving rack. The shearing mechanism 5 is used to complete the fixed-length cutting operation of angle iron. The shearing mechanism 5 includes a positioning plate 51, which is fixed to the end of the machine frame 1 to provide an installation reference and sliding guide for the shearing movement. A feeding channel is opened at the center of the positioning plate 51. An upper sliding seat 52 and a lower sliding seat 54 are installed on the outer side of the positioning plate 51 through a guide rail. The upper sliding seat 52 is located directly above the lower sliding seat 54. Both the upper sliding seat 52 and the lower sliding seat 54 can slide vertically along the guide rail on the outer side of the positioning plate 51. The guide rail provides directional constraints for the sliding movement to avoid swaying during movement. An upper cutting tool 53 is fixed to one side of the upper sliding seat 52, and a lower cutting tool 55 is fixed to one side of the lower sliding seat 54. The cutting edges of the upper cutting tool 53 and the lower cutting tool 55 are aligned with each other. When the angle iron is conveyed between the upper cutting tool 53 and the lower cutting tool 55, the upper cutting tool 53 and the lower cutting tool 55 move closer to each other to complete the shearing. The shearing method of moving in opposite directions can reduce the shearing load and reduce equipment vibration. Two drive seats 56 are rotatably mounted on one side of the positioning plate 51. The drive seats 56 can rotate around their own axis. Both ends of the drive seats 56 are rotatably connected to connecting rods I 57. The other ends of the two connecting rods I 57 are rotatably connected to the upper sliding seat 52 and the lower sliding seat 54, respectively. The drive seats 56 act as intermediate transmission components. By rotating, they drive the two connecting rods I 57 to move synchronously, ensuring that the upper sliding seat 52 and the lower sliding seat 54 move in opposite directions and at the same speed. Two guide rods 58 are fixed to one end of the fuselage frame 1. The guide rods 58 are vertically arranged to provide directional support for the sliding of the transmission base 59. The transmission base 59 is slidably fitted onto the outer wall of the two guide rods 58, and the transmission base 59 can slide up and down along the outer wall of the guide rods 58. The guide rods 58 limit the swaying amplitude of the transmission base 59. The bottom end of the transmission base 59 is fixedly connected to the upper sliding seat 52 through a push-pull rod 510. The push-pull rod 510 is used to transmit the power of the transmission base 59. A rotating shaft II 511 is rotatably installed through one side of the fuselage frame 1. An eccentric wheel 512 is fitted onto the outer wall of the rotating shaft II 511. The bottom end of the eccentric wheel 512 abuts against the top of the transmission base 59. The eccentric wheel 512 converts the rotational motion of the rotating shaft II 511 into the vertical linear motion of the transmission base 59 through its own eccentric structure. A drive motor II 514 is fixed to one side of the machine frame 1. The output end of the drive motor II 514 is fixedly connected to one end of the rotary shaft II 511. The drive motor II 514 provides the power source for the shearing motion. An elastic element II 513 is sleeved on the outer wall of the guide rod 58. The top end of the elastic element II 513 abuts against the transmission base 59, and the bottom end of the elastic element II 513 abuts against the machine frame 1. The elastic element II 513 provides upward elastic support to the transmission base 59 through its own elastic deformation. After shearing, it helps the transmission base 59 to quickly reset, shortening the action cycle and improving processing efficiency.

[0028] Example 2

[0029] Reference Figures 1-8 This invention provides a novel technical solution: an automatic shearing device for a continuous angle iron processing production line. The device includes a chip removal component 7 installed at the bottom of a profile guide rail 2. The chip removal component 7 works in conjunction with a lower cutting tool 55, eliminating the need for additional power components. It cleans the oxide scale on the surface of the profile guide rail 2 synchronously via shearing motion. The chip removal component 7 includes two connecting pipes 71, which are fixed to one side of multiple support brackets 22. The connecting pipes 71 extend along the length of the profile guide rail 2 and are used to transport and evenly distribute the airflow for cleaning. Multiple spray heads 72 are connected to the outer wall of the connecting pipes 71. The spray heads 72 are located inside a flow channel 23, with their nozzles facing the bottom of the flow channel 23, directing the airflow to the oxide scale accumulation location to improve the chip removal effect. A cylinder 73 is fixed to the bottom of the guide rail base 21. The cylinder 73 provides a sealed working space for pneumatic chip removal. A piston rod 74 is slidably installed inside the cylinder 73, and the piston rod 74 can slide along the inner wall of the cylinder 73. Multiple partition rings 75 are fitted on the outer wall of the piston rod 74 and are fixed to the inner wall of the cylinder 73. An independent air chamber 76 is formed between two adjacent partition rings 75. The partition rings 75 divide the interior of the cylinder 73 into multiple sealed chambers, improving the efficiency of airflow generation. A piston ring 77 is fixedly fitted on the outer wall of the piston rod 74. The piston ring 77 is located inside the air chamber 76, and the outer wall of the piston ring 77 is in close contact with the inner wall of the air chamber 76 to ensure the airtightness of the air chamber 76 and prevent air leakage from affecting the chip removal pressure. Multiple exhaust ports 710 and intake ports 711 are fixed through the outer wall of cylinder 73. The exhaust ports 710 and intake ports 711 correspond to the air chamber 76. The exhaust ports 710 are connected to the connecting pipe 71 through a pipeline. One-way valves are installed inside both exhaust ports 710 and intake ports 711. The one-way valve inside the intake port 711 only allows outside air to enter the air chamber 76, and the one-way valve inside the exhaust port 710 only allows air inside the air chamber 76 to be discharged to the connecting pipe 71. A stable intake and exhaust cycle is formed through the one-way conduction characteristic of the one-way valves. Connecting rod II 78 is rotatably mounted on one end of piston rod 74, and connecting base 79 is rotatably mounted on the other end of connecting rod II 78. Connecting base 79 is fixed on one side of the sliding seat 54 and is used to fix the transmission connection point. Connecting rod II 78 converts the vertical linear motion of the sliding seat 54 into the horizontal sliding motion of piston rod 74, realizing the synchronous linkage of shearing action and chip removal action.

[0030] By dividing the cylinder 73 into multiple independent air chambers 76 using multiple partition rings 75, a continuous, multi-pronged, and pressure-stable pulse airflow can be generated during each reciprocating stroke of the sliding shifter 54. Compared to a single-chamber structure, this significantly improves the chip removal efficiency and coverage, ensuring that even with continuous production of angle iron of different specifications and variations in chip volume, the oxide scale accumulated in the guide groove 23 can be thoroughly removed, thus guaranteeing the reliability of the device's long-term continuous operation. This design cleverly utilizes the power of the shearing action itself, eliminating the need for an external air source and achieving the dual goals of energy saving and compact structure.

[0031] A control unit 6 is fixed on one side of the machine frame 1. The control unit 6 integrates control circuits and execution modules. The signal output terminal of the control unit 6 is electrically connected to the signal input terminals of drive motor I 42 and drive motor II 514 respectively. The control unit 6 coordinates the start and stop sequence of drive motor I 42 and drive motor II 514 according to a preset program to ensure that the feeding action and the shearing action are connected in an orderly manner, avoid action conflicts, and maintain the stability of continuous processing.

[0032] When the device is running, the control unit 6 sends a start command to the drive motor I 42. The drive motor I 42 rotates and drives the transmission gear 43 to rotate. The transmission gear 43 meshes with the transmission rack 44 and drives the feeding trolley 4 to move along the guide rail slider towards the shearing mechanism 5. The push plate 41 on one side of the feeding trolley 4 abuts against the end of the angle iron and pushes the angle iron to be continuously conveyed along the top surface of the profile guide rail 2. During the conveying process, the spring I 39 of the pressing component 3 continuously applies elastic thrust to the sliding rod 37. The sliding rod 37 drives the pressing roller 38 to press against both sides of the angle iron. The figure-eight arranged pressing roller 38, together with the inverted V-shaped profile guide rail 2, limits the angle iron. The pressing roller 38 rotates synchronously with the angle iron, reducing the conveying resistance while maintaining the stability of the angle iron position. When the angle iron is pushed to the set shearing length, the control unit 6 controls the drive motor I 42 to stop operating, and the feeding trolley 4 remains stationary. At the same time, the control unit 6 starts the drive motor II 514, which drives the rotary shaft II 511 to rotate. The rotary shaft II 511 drives the eccentric wheel 512 to rotate. When the eccentric wheel 512 rotates, it pushes the transmission base 59 to slide downward along the guide rod 58. The transmission base 59 pushes the upper sliding seat 52 to move downward along the positioning plate 51 via the push-pull rod 510. When the upper sliding seat 52 moves, it drives the corresponding connecting rod I 57 to swing. The connecting rod I 57 drives the drive seat 56 to rotate. At the same time, the drive seat 56 rotates and drives the connecting rod I 57 on the other side to swing. The connecting rod I 57 pulls the lower sliding seat 54 to move upward along the positioning plate 51. The upper sliding seat 52 drives the upper cutting tool 53 to move downward, and the lower sliding seat 54 drives the lower cutting tool 55 to move upward. The upper cutting tool 53 and the lower cutting tool 55 move synchronously towards each other, and the shearing operation of the diagonal iron is completed between their cutting edges. During the conveying process, the oxide scale generated falls into the drainage groove 23 of the profile guide rail 2 under the action of gravity. As the sliding seat 54 moves upward, it pushes the connecting rod II 78 through the connecting base 79. The connecting rod II 78 pushes the piston rod 74 to slide along the inner wall of the cylinder 73. The piston rod 74 drives the piston ring 77 to move inside the air chamber 76. The volume of the air chamber 76 decreases accordingly. After the internal air is compressed, it pushes open the one-way valve in the exhaust port 710. The airflow enters the connecting pipe 71 through the pipeline, and then is distributed to each spray head 72 through the connecting pipe 71. The spray head 72 sprays the airflow in a direction to the drainage groove 23, blowing the accumulated oxide scale outward.After shearing is completed, drive motor II 514 continues to run, driving eccentric wheel 512 to rotate to the initial position. Elastic element II 513 pushes transmission base 59 upward along guide rod 58 to reset by elastic thrust. Transmission base 59 drives upper sliding seat 52 to move upward through push-pull rod 510, and then drives lower sliding seat 54 to move downward through connecting rod I 57 and drive seat 56. Upper cutting tool 53 and lower cutting tool 55 separate from each other. When lower sliding seat 54 moves downward, it pulls piston rod through connecting base 79 and connecting rod II 78. 74 slides in the reverse direction, the volume of the air chamber 76 increases to form a negative pressure, and the outside air pushes open the one-way valve in the air inlet port 711 to enter the air chamber 76 to complete the air replenishment. Then the control unit 6 starts the drive motor I 42 again, and the feeding trolley 4 continues to push the angle iron, repeating the continuous actions of feeding, shearing and chip removal. The baffle plate 45 continuously blocks dust and debris from entering the meshing part of the transmission gear 43 and the transmission rack 44. The clamping component 3 always maintains the clamping limit on the angle iron to ensure the stable operation of the continuous processing of the angle iron.

[0033] However, as is well known to those skilled in the art, the working principles and wiring methods of drive motor I42 and drive motor II514 are conventional methods or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automatic shearing device for a continuous processing production line of angle iron, characterized in that, include: The fuselage frame (1) has an inverted V-shaped profile guide rail (2) fixedly installed on its top for guiding the angle iron. The feeding trolley (4) is slidably connected to the top of the machine frame (1). A pusher plate (41) adapted to the top of the profile guide rail (2) is fixedly provided on one side of the feeding trolley (4) for pushing angle iron. Multiple sets of clamping components (3) are fixed to the top of the machine frame (1). Each set of clamping components (3) includes two pressing rollers (38). The two pressing rollers (38) are arranged in a figure-eight shape and cooperate with the profile guide rail (2) to limit the angle iron during the conveying and shearing process. In addition, a shearing mechanism (5) is fixedly installed on one side of the body frame (1). The shearing mechanism (5) includes an upper cutting tool (53), a lower cutting tool (55) and a drive motor II (514). The drive motor II (514) is used to drive the upper cutting tool (53) and the lower cutting tool (55) to move closer to each other to perform counter-shearing on the angle iron.

2. The automatic shearing device for a continuous angle iron processing production line according to claim 1, characterized in that, The profile guide rail (2) includes a guide rail base (21) and a plurality of support brackets (22) fixedly disposed on the top of the guide rail base (21), and a drainage groove (23) for guiding and discharging oxide scale is formed between two adjacent support brackets (22).

3. The automatic shearing device for a continuous angle iron processing production line according to claim 2, characterized in that, The clamping member (3) also includes a mounting base (31) fixed to the top of the fuselage frame (1), and the guide rail base (21) is fixed to the top of the plurality of mounting bases (31); Positioning rings (34) are provided on both sides of the mounting base (31). A sleeve rod (36) is detachably provided inside the positioning ring (34). A sliding rod (37) is slidably provided inside the sleeve rod (36). The outer wall of the sliding rod (37) is fitted with a spring I (39), and the two ends of the spring I (39) abut against the bottom end of the sliding rod (37) and the top wall of the sleeve rod (36) respectively, for applying an elastic thrust to the sliding rod (37); The pressing roller (38) is rotatably mounted on one end of the L-shaped sliding rod (37) via a bearing, so as to press the angle iron under the elastic force of spring I (39).

4. The automatic shearing device for a continuous angle iron processing production line according to claim 3, characterized in that, Both sides of the mounting base (31) are rotatably provided with a rotating shaft I (32). A guide ring (33) is fixedly provided at the outer end of the rotating shaft I (32). The guide ring (33) is slidably sleeved on the sleeve rod (36). The outer wall of the positioning ring (34) is threaded with a fastening bolt (35) for pressing and fixing the sleeve rod (36).

5. The automatic shearing device for a continuous angle iron processing production line according to claim 2, characterized in that, The shearing mechanism (5) also includes a positioning plate (51) fixed to one end of the body frame (1). An upper sliding seat (52) and a lower sliding seat (54) are slidably arranged on the outer side of the positioning plate (51) via guide rails. The upper cutting tool (53) and the lower cutting tool (55) are respectively fixed to one side of the upper sliding seat (52) and the lower sliding seat (54). Two drive seats (56) are rotatably provided on one side of the positioning disk (51). Each drive seat (56) has a connecting rod I (57) rotatably provided at both ends. The other ends of the two connecting rods I (57) are rotatably connected to the upper sliding seat (52) and the lower sliding seat (54) respectively, so that the upper sliding seat (52) and the lower sliding seat (54) can slide synchronously in opposite directions.

6. The automatic shearing device for a continuous angle iron processing production line according to claim 5, characterized in that, Two guide rods (58) are fixedly installed at one end of the fuselage frame (1). A transmission base (59) is slidably sleeved on the outer wall of the two guide rods (58). The bottom end of the transmission base (59) is fixedly connected to the upper sliding seat (52) through a push-pull rod (510). A rotating shaft II (511) is rotatably provided through one side of the fuselage frame (1), and an eccentric wheel (512) is sleeved on the outer wall of the rotating shaft II (511) and abuts against the top of the transmission base (59). The output end of the drive motor II (514) is fixedly connected to one end of the rotary shaft II (511) and is used to drive the transmission base (59) to slide along the guide rod (58).

7. The automatic shearing device for a continuous angle iron processing production line according to claim 6, characterized in that, The outer wall of the guide rod (58) is fitted with an elastic element II (513). The two ends of the elastic element II (513) abut against the transmission base (59) and the fuselage frame (1) respectively, and are used to provide a reset driving force for the transmission base (59).

8. The automatic shearing device for a continuous angle iron processing production line according to claim 5, characterized in that, It also includes a chip removal component (7), which includes a connecting pipe (71) that passes through and is fixed to one side of the plurality of support brackets (22), and a plurality of spray heads (72) that are connected to the connecting pipe (71) and located in the drainage channel (23). A cylinder (73) is fixedly installed at the bottom of the guide rail base (21), and a piston rod (74) is slidably installed inside the cylinder (73). One end of the cylinder (73) is connected to the sliding seat (54) to convert the reciprocating sliding of the sliding seat (54) into the reciprocating motion of the piston rod (74), thereby generating airflow and blowing air through the connecting pipe (71) and the spray head (72) to clean the desiccant (23).

9. The automatic shearing device for a continuous angle iron processing production line according to claim 8, characterized in that, One end of the piston rod (74) is rotatably provided with a connecting rod II (78), and the other end of the connecting rod II (78) is rotatably provided with a connecting base (79). The connecting base (79) is fixed to one side of the sliding seat (54) to realize the transmission connection between the sliding seat (54) and the piston rod (74).

10. The automatic shearing device for a continuous angle iron processing production line according to claim 1, characterized in that, A transmission rack (44) is fixed on one side of the inner wall of the fuselage frame (1). A baffle plate (45) located on the top of the transmission rack (44) is fixed on one side of the inner wall of the fuselage frame (1) to prevent debris from falling into the meshing part of the transmission rack (44).

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