Automatic aluminum alloy round bar shearing machine capable of improving efficiency

Abstract

The invention provides an automatic aluminum alloy round bar shearing machine capable of improving efficiency, relates to the technical field of production and processing of aluminum alloy round bars, and solves the technical problems that in the working process of existing equipment, deviation is prone to occurring, manual intervention is needed, the frequency is high, bars are prone to being scattered after being deformed and bundled, shearing and positioning of bar heads and bar tails are inaccurate, and working continuity is not high. The bar shearing main machine is provided with an active pushing device, a bar head positioning device, a feeding roller, an offset returning device and a forced feeding device. The forced feeding device comprises a fixing frame used for fixing bars and a sliding rail which is arranged on the bar shearing main machine in a sliding mode and used for feeding the bars into a cutter cylinder. The production efficiency and the product quality are improved, and the production cost and potential safety hazards are reduced; the technical problems that bars are prone to deviation, manual intervention is needed, the frequency is high, the bars are prone to loosening after being deformed and bundled, shearing and positioning of bar heads and bar tails are inaccurate, and working continuity is not high are solved. Waste products caused by wrong shearing are reduced, and potential safety hazards of operation are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of production and processing of aluminum alloy round bars, and in particular to an automatic aluminum alloy round bar shearing machine with improved efficiency. Background Art

[0002] Aluminum and aluminum alloys are widely used in aerospace, transportation, construction, electromechanical, light chemical and daily necessities due to their good electrical and thermal conductivity, corrosion resistance and weldability. In the casting process of aluminum alloy bars, the alloyed aluminum alloy melt needs to be refined, degassed and impurized, and deep well casting is used to form aluminum alloy ingots with a length of 5-8 meters. In the post-processing (shearing) of aluminum alloy ingots, according to the needs of different customers and logistics transportation, the produced aluminum alloy ingots need to be sheared to meet the requirements of the next processing procedure.

[0003] Although the existing aluminum alloy bar shearing equipment can meet the requirements of shearing bars and ensuring the flatness of the cut surface, in actual use there are problems such as the position of the cast bars is easily offset, the cast bars are deformed resulting in loose bundling during transportation, the working process is discontinuous and the degree of automation is low.

[0004] For example, the invention patent with publication number CN105149674 A discloses an aluminum bar shearing machine, including a frame, an aluminum bar conveying frame, and an aluminum bar output frame. A fixed knife seat and a sliding frame are fixedly arranged on the frame, a moving knife seat is arranged on the sliding frame, and scissors are arranged on the fixed knife seat and the moving knife seat. The sliding frame is driven to slide by an oil cylinder. An aluminum bar positioning seat is arranged at the output end of the aluminum bar conveying frame, and the aluminum bar positioning seat is driven by a driving mechanism to slide reciprocatingly up and down relative to the frame. The aluminum bar output frame includes an aluminum bar turning frame with an arc-shaped cross-section, the aluminum bar turning frame is rotatably connected to the frame, and is driven to rotate by a first cylinder. The scissors are semicircular, and the aluminum bar positioning seat, the fixed knife seat and the moving knife seat all have arc-shaped surfaces that match the outer circumference of the aluminum bar. The aluminum bar is sheared by arranging the semicircular scissors, the shearing is neat, and the incision is flat. Moreover, during shearing, the aluminum bar positioning seat and the aluminum bar turning frame simultaneously position the aluminum bar in the up and down directions, further ensuring the shearing effect. This invention can ensure the flatness of the cut surface of the rod, but it still fails to solve the problem that the position of the aluminum alloy cast rods is easily offset and the cast rods are deformed, resulting in loose bundling during transportation.

[0005] In summary, in order to solve the problems of discontinuous production, inaccurate positioning of cast bars, easy deviation, etc. in the existing aluminum alloy cast bar shearing equipment, and to improve the automation and safety of the existing aluminum alloy cast bar shearing equipment, a device and method for improving the efficiency of aluminum alloy automatic bar shearing machine are proposed to overcome the shortcomings in current practical applications. Summary of the invention

[0006] The invention provides an automatic rod shearing machine for aluminum alloy round rods with improved efficiency, so as to solve the technical problems that the existing equipment is prone to deviation during operation, requires frequent manual intervention, the rods are easily deformed and bundled, are easily scattered, the shearing positioning of the rod heads and tails is inaccurate, and the working continuity is not high.

[0007] The embodiments of the present invention are implemented by the following technical solutions:

[0008] An automatic rod shearing machine for aluminum alloy round bars with improved efficiency comprises a rod shearing main machine, the rod shearing main machine is provided with a knife barrel for shearing bars, an active pushing device for pushing the cut bars out of the rod shearing main machine, a rod head positioning device for positioning the rod head and the rod tail, a plurality of groups of feeding rollers for feeding, an offset homing device for pushing the offset bars back to the feeding rollers and a forced feeding device for fixing the feeding, the forced feeding device comprising a fixing frame for fixing the bars and a slide rail slidably arranged on the rod shearing main machine for feeding the bars into the knife barrel.

[0009] Preferably, it also includes a storage device for pre-storing rods, the storage device includes at least two symmetrically arranged conveyor belts for storing and transporting rods and a feeding motor for driving the conveyor belts, and the feeding motor is provided with a transmission gear for transmitting and connecting the conveyor belts.

[0010] Preferably, the conveyor belt is arranged in two groups and a pressure sensor for detecting the pressure of the rod on the conveyor belt is provided at the conveying end, the feeding motor is respectively set as the first feeding motor and the second feeding motor, and the pressure sensor is electrically connected to the first feeding motor and the second feeding motor to adjust the offset of the rod during transmission.

[0011] Preferably, it further comprises a rod turning device for transporting the rods from the storage device to the feeding roller, wherein the rod turning device comprises a rod turning stopper for blocking and releasing the rods and a rod turning cylinder for controlling the rod turning stopper.

[0012] Preferably, the rod-turning stopper includes an arc-shaped baffle plate whose lower end is rotatably connected to the material storage device for blocking the rod material, a rod-turning connecting rod for fixing the lower end of the arc-shaped baffle plate, and a rod-turning sleeve connected to the rod-turning cylinder; the rod-turning sleeve is provided with a hinged rod for pushing and pulling the arc-shaped baffle plate to rotate, and it is slidably arranged on the rod-turning connecting rod.

[0013] Preferably, the offset homing device is arranged between the feed roller and the conveyor belt, and comprises a distance sensor arranged on the feed roller, an offset homing cylinder electrically connected to the distance sensor, and a gripper for pushing the rod.

[0014] Preferably, the feed roller is configured as a concave roller whose shape is adapted to the bar material, and is provided with a driving device for driving the rotation thereof and a transmission member for connecting the driving device and the feed roller.

[0015] Preferably, the club head positioning device includes a baffle for fixing the club head or the club tail, a fixed length for assisting in positioning the club head, and a club head positioning cylinder for driving the baffle to rise and fall.

[0016] Preferably, the shear rod main unit is also provided with a discharge port for discharging materials, a rod support arranged at the discharge port and a tightening positioning device for positioning the rods, the tightening positioning device includes a tightening rod for limiting the rods and a threaded rod for fixing and adjusting the tightening rod, and the threaded rod is connected to the shear rod main unit.

[0017] Preferably, the fixing frame is provided with a clamping device for clamping and fixing the bar material and a forced feeding cylinder for controlling the clamping device.

[0018] Preferably, the knife barrel is lengthened, and the lengthened knife barrel transmits most of the vibration of the rod to the inside of the knife barrel, reducing the vibration of the alloy rod during shearing, and the product port is smoother. The problem of uneven force on the rods, which leads to the bending of the rods, is reduced, and the problem of the strapping belt loosening during transportation due to the bending of the rods during the cutting process is solved. The knife barrel pressure cover is moved backward, and the overall structure of the knife barrel is thick in the middle and thin in the middle, which reduces the stress on the pressure cover bolts and prevents the bolts from loosening and breaking. High-strength material 40cr is used, which has high wear resistance, tensile strength and load-bearing capacity, and increases the service life of the knife barrel. In addition, a bevel is opened at the entrance of the extended knife barrel, which is conducive to the smooth entry of the rod into the knife barrel.

[0019] Preferably, a suitable and efficient control system is designed, and the whole process of rod shearing is automated by independently writing a control program. The shearing machine is controlled by a touch screen and PLC, and the application of unmanned shearing technology for aluminum alloy rods is realized by modifying the existing shearing equipment.

[0020] By adopting this technical solution, the production speed can be significantly increased and downtime can be reduced by using an automated feeding, positioning, shearing and discharging system. The design of the storage device and multiple conveyor belts allows continuous feeding and reduces interruptions caused by material changes. The rod head positioning device and the active pusher ensure the accurate position of the rod and reduce the need for manual adjustment. The offset homing device can automatically correct the position deviation of the rod and reduce the need for manual correction. Through detection devices such as pressure sensors and distance sensors, the status of the rod can be monitored in real time to ensure the accuracy and consistency of each shearing. The design of the forced feeding device and the fixed frame ensures the stability of the rod during the shearing process and reduces the risk of deformation or damage. Due to high-precision positioning and shearing, scrap caused by incorrect shearing is reduced. The increase in the degree of automation reduces dependence on manual labor and reduces labor costs. Reasonable mechanical design and maintenance measures help to extend the service life of the equipment and reduce the cost of repair and replacement of parts;

[0021] When the rod shearing main machine completes a rod shearing operation, the active pusher cylinder operates to push the cut rods to the discharge port. In addition, a rod head positioning device is provided, which is fastened by bolts directly above the rod shearing main machine and connected to the rod head positioning cylinder. When the rod head and rod tail need to be sheared, the rod head positioning cylinder operates, and the cylinder drives the fixed length to descend along the guide rail to assist in positioning the rod head shearing position. Push the baffle to the required position of the rod head, fix the rod, and cut the rod head with scissors. In addition, a rod bracket is provided in the middle of the discharge port on the rod shearing main machine, and the bracket is parallel to the lower edge of the knife barrel to ensure that the rod is placed horizontally during shearing. The knife barrel is also lengthened to ensure that the end of the rod is flat during shearing and reduce the number of bent rods, and the material is improved; when the rod is transported to the feeding roller device and the rod shearing main machine has completed a shearing operation, the rod turning device operates to transport the rod to the feeding roller. Further complete the shearing operation. A dual motor drive is also set up, and the two chain conveyor belts are independently controlled and driven. The power of the motor is adjusted through the pressure sensor to ensure that the rod does not tilt.

[0022] Automated operation reduces the chances of workers coming into direct contact with hazardous areas and improves the safety of the working environment. Additional safety features such as the tightening positioning device and the forced feeding cylinder can be used during operation. By adjusting the drive, transmission and cylinder components, it can adapt to different sizes and types of aluminum alloy round bars. Each part of the equipment can be adjusted and maintained independently, which increases the flexibility and scalability of the system. The design of wearing parts such as the knife barrel and conveyor belt facilitates quick replacement and reduces downtime.

[0023] In summary, this aluminum alloy round bar automatic shearing machine not only improves production efficiency and product quality through highly automated and intelligent design, but also reduces production costs and safety hazards, and has significant economic benefits and technical advantages.

[0024] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0025] 1. The present invention improves production efficiency and product quality, and also reduces production costs and safety hazards;

[0026] 2. The present invention solves the technical problems that the bar material is easy to deviate, the manual intervention frequency is high, the bar material is deformed and easy to fall apart when bundled, the shearing positioning of the head and tail of the bar is inaccurate, and the working continuity is low;

[0027] 3. The present invention reduces waste caused by incorrect shearing and reduces safety hazards in operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A top view of an automatic rod shearing machine for aluminum alloy round rods with improved efficiency provided in Example 1 of the present invention;

[0030] Figure 2 A side view of an automatic rod shearing machine for aluminum alloy round rods with improved efficiency provided in Example 1 of the present invention;

[0031] Figure 3 A front view of an automatic rod shearing machine for aluminum alloy round rods with improved efficiency provided in Example 1 of the present invention;

[0032] Figure 4 A three-dimensional structural diagram of an automatic rod shearing machine for aluminum alloy round rods with improved efficiency provided in Example 1 of the present invention;

[0033] Figure 5 A schematic diagram of a forced feeding device for an automatic rod shearing machine for aluminum alloy round rods with improved efficiency provided in Example 1 of the present invention;

[0034] Figure 6 A schematic diagram of an offset homing device for an automatic rod shearing machine for aluminum alloy round rods with improved efficiency provided in Example 1 of the present invention;

[0035] Figure 7 A schematic diagram of a rod turning device for an automatic rod shearing machine for aluminum alloy round rods with improved efficiency provided in Example 1 of the present invention;

[0036] Figure 8 A schematic diagram of a rod head positioning device for an automatic rod shearing machine for aluminum alloy round rods with improved efficiency provided in Example 1 of the present invention;

[0037] Fig. 9 A diagram of the modification of the knife barrel of an automatic rod shearing machine for aluminum alloy round rods to improve efficiency provided in Example 1 of the present invention.

[0038] Icons: 1. Tightening positioning device; 2. Rod head positioning device; 3. Knife cylinder; 4. Fixed frame; 5. Rod bracket; 6. Discharge port; 7. Rod shearing main machine; 8. Active pushing device; 9. Driving device; 10. First feeding motor; 11. Second feeding motor; 12. Transmission gear; 13. Conveyor belt; 14. Rod turning cylinder; 15. Rod turning stopper; 16. Offset return device; 17. Feeding roller; 18. Transmission part; 19. Threaded rod; 20. Tightening rod; 21. Slide rail; 22. Clamping device; 23. Forced feeding cylinder; 24. Offset return cylinder; 25. Rod turning connecting rod; 26. Rod turning shaft sleeve; 27. Rod head positioning cylinder; 28. Baffle; 29. ​​Scissors. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Example 1

[0045] An automatic rod shearing machine for aluminum alloy round rods with improved efficiency comprises a rod shearing main machine 7, wherein the rod shearing main machine 7 is provided with a knife barrel 3 for shearing rods, an active pushing device 8 for pushing the cut rods out of the rod shearing main machine 7, a rod head positioning device 2 for positioning the rod head and the rod tail, a plurality of groups of feeding rollers 17 for feeding, an offset homing device 16 for pushing the offset rods back to the feeding rollers 17, and a forced feeding device for fixing the feeding, wherein the forced feeding device comprises a fixing frame 4 for fixing the rods and a slide rail 21 slidably arranged on the rod shearing main machine 7 for feeding the rods into the knife barrel 3.

[0046] In this embodiment, a storage device for pre-storing rods is also included, and the storage device includes at least two symmetrically arranged conveyor belts 13 for storing and transporting rods and a feeding motor for driving the conveyor belts 13, and the feeding motor is provided with a transmission gear 12 for transmitting and connecting the conveyor belts 13.

[0047] In this embodiment, the conveyor belt 13 is provided with two groups and a pressure sensor for detecting the pressure of the rod on the conveyor belt 13 is provided at the conveying end. The feeding motors are respectively provided with a first feeding motor 10 and a second feeding motor 11. The pressure sensor is electrically connected to the first feeding motor 10 and the second feeding motor 11 to adjust the offset of the rod during transmission.

[0048] In this embodiment, a rod turning device for transporting the rods from the storage device to the feeding roller 17 is also included. The rod turning device includes a rod turning stopper 15 for blocking and releasing the rods and a rod turning cylinder 14 for controlling the rod turning stopper 15 .

[0049] In this embodiment, the rod turning stopper 15 includes an arc-shaped baffle 28 whose lower end is rotatably connected to the material storage device for blocking the rod material, a rod turning connecting rod 25 for fixing the lower end of the arc-shaped baffle 28, and a rod turning sleeve 26 connected to the rod turning cylinder 14; the rod turning sleeve 26 is provided with a hinged rod for pushing and pulling the arc-shaped baffle 28 to rotate, and it is slidably arranged on the rod turning connecting rod 25.

[0050] In this embodiment, the offset homing device 16 is arranged between the feed roller 17 and the conveyor belt 13, and includes a distance sensor arranged on the feed roller 17, an offset homing cylinder 24 electrically connected to the distance sensor, and a gripper for pushing the rod.

[0051] In this embodiment, the feed roller 17 is configured as a concave roller whose shape is adapted to the bar material, and is provided with a driving device 9 for driving the rotation thereof and a transmission member 18 for transmission connection between the driving device 9 and the feed roller 17 .

[0052] In this embodiment, the club head positioning device 2 includes a baffle 28 for fixing the club head or the club tail, a length setting device for assisting in positioning the club head, and a club head positioning cylinder 27 for driving the baffle 28 to move up and down.

[0053] In this embodiment, the shear rod main unit 7 is also provided with a discharge port 6 for discharging materials, a rod support 5 provided at the discharge port 6 and a tightening positioning device 1 for positioning the rod material, the tightening positioning device 1 includes a tightening rod 20 for limiting the rod material and a threaded rod 19 for fixing and adjusting the tightening rod 20, and the threaded rod 19 is connected to the shear rod main unit 7.

[0054] In this embodiment, the fixing frame 4 is provided with a clamping device 22 for clamping and fixing the bar material and a forced feeding cylinder 23 for controlling the clamping device 22 .

[0055] In this embodiment, the knife barrel 3 is lengthened, and the lengthened knife barrel 3 transmits most of the vibration of the rod to the inside of the knife barrel 3, reducing the vibration of the alloy rod during shearing, and the product port is smoother. The problem of uneven force on the rod, which leads to the bending of the rod, is reduced, and the problem of the strapping belt loosening during transportation due to the bending of the rod during the cutting process is solved. The pressure cover 31 of the knife barrel 3 is moved backward, and the overall structure of the knife barrel 3 is thick in the middle and thin in the middle, which reduces the stress on the bolts of the pressure cover 31 and prevents the bolts from loosening and breaking. The high-strength material 40cr is used instead, which has high wear resistance, tensile strength and bearing capacity, and improves the service life of the knife barrel 3. In addition, a groove is opened at the entrance of the lengthened knife barrel 3, which is conducive to the smooth entry of the rod into the knife barrel 3.

[0056] In this embodiment, a suitable and efficient control system is designed, and the whole process of rod shearing is automated by independently writing a control program. The shearing machine is controlled by a touch screen and PLC, and the application of unmanned shearing technology for aluminum alloy rods is realized by modifying the existing shearing equipment.

[0057] Working principle and usage:

[0058] By using automated feeding, positioning, shearing and discharging systems, production speed can be significantly increased and downtime can be reduced. The design of the storage device and multiple groups of conveyor belts 13 allows continuous feeding and reduces interruptions caused by material changes. The rod head positioning device 2 and the active pushing device 8 ensure the accurate position of the rod and reduce the need for manual adjustment. The offset homing device 16 can automatically correct the position deviation of the rod and reduce the need for manual correction. Through detection devices such as pressure sensors and distance sensors, the status of the rod can be monitored in real time to ensure the accuracy and consistency of each shearing. The design of the forced feeding device and the fixed frame 4 ensures the stability of the rod during the shearing process and reduces the risk of deformation or damage. Due to high-precision positioning and shearing, waste caused by incorrect shearing is reduced. The increase in the degree of automation reduces dependence on manual labor and reduces labor costs. Reasonable mechanical design and maintenance measures help to extend the service life of the equipment and reduce the cost of repair and replacement of parts;

[0059] When the rod shearing main machine 7 completes a rod shearing operation, the active pushing device 8 cylinder operates to push the cut rod to the discharge port 6. In addition, a rod head positioning device 2 is provided, which is fastened by bolts directly above the rod shearing main machine 7 and connected to the rod head positioning cylinder 27. When the rod head and rod tail need to be sheared, the rod head positioning cylinder 27 operates, and the cylinder drives the fixed length to descend along the guide rail to assist in positioning the rod head shearing position. Push the baffle 28 to the required position of the rod head, fix the rod, and cut the rod head with scissors. In addition, a rod support 5 is provided in the middle of the discharge port on the rod shearing main machine 7, and the support is parallel to the lower edge of the knife barrel 3 to ensure that the rod is placed horizontally during shearing. The knife barrel 3 is also lengthened to ensure that the end of the rod is flat during shearing and reduce the number of bent rods, and improve the material; when the rod is transported to the feeding roller 17 device and the rod shearing main machine 7 has completed a shearing operation, the rod turning device operates to transport the rod to the feeding roller 17. The shearing operation is further completed. A dual motor drive is also provided, and the two chain conveyor belts 13 are independently controlled and driven. The power of the motor is adjusted through the action of the pressure sensor to ensure that the rod does not tilt.

[0060] Example 2

[0061] An automatic rod shearing machine for aluminum alloy round bars with improved efficiency. The alloy rods cast in deep wells are hoisted out and transported to the rod storage rack, and then placed horizontally on the chain conveyor 1313. Driven by the feeding motor 10, the gear device 12 is driven to rotate through the conveyor belt, and the gear device drives the chain conveyor 1313 to move toward the feeding roller 17 device. The rods are placed on the synchronously driven chain conveyor 13 and move toward the feeding roller 17 device together. When the chain conveyor 13 is about to approach the conveyor 13, the chain conveyor 13 is manually stopped, and then the rod is lifted up and transferred to the conveyor roller using a crowbar. Since the chain conveyor 13 moves synchronously, once one side slides during the forward movement of the rod, it cannot move synchronously, which will increase the pressure on the gear at the lagging end and aggravate the wear of the gear. At this time, the operator needs to adjust the tilted rod, which increases the labor intensity of the personnel and reduces the labor efficiency.

[0062] In this embodiment, the conveying roller is controlled by the operator, and the rod is driven by the feed roller 17 motor 9 to drive the belt 18 to the position of the knife barrel 3. When it moves to the position of the knife barrel 3, the operator manually decelerates and slowly transports the rod to the shear rod mainframe 7, visually observes the shearing position of the rod head, and then slowly adjusts it to a suitable position to remove the rod head. Then, according to the processing requirements, the length of the shear rod is adjusted, and after the tightening bar 20 on the tightening positioning device 1 is adjusted to tighten the end face of the rod, the operator presses the button, and the scissors 29 cut the rod under the drive of the motor of the shear rod mainframe 7. The rod moves downward from the discharge port 6 and is transported to the packaging place by the conveyor belt 13, and the rods are manually transported and stacked. During the shearing process, the rod is subjected to high and rapid impact. Due to the large internal space of the shear rod mainframe 7, the rod outside the shear rod mainframe 7 is prone to large-scale displacement under the high-speed impact of the scissors. It is easy to cause harm to the passing personnel when it is separated from the feed roller 17 device, and it is mainly manually returned when returning to the position, which is labor-intensive. If the bar bends during the casting process, it will be difficult for the bar to enter the cutting machine smoothly, causing great interference to the shearing operation.

[0063] Since the position of the rod head is visually and manually adjusted by the staff, the material loss at the rod head and tail is serious, and the long-term concentration and high labor intensity during the operation lead to fatigue of the staff and increase the safety hazard. After the scissors 29 are operated once, due to the effect of the tightening device, the rod may not be smoothly disconnected and may get stuck. The operator needs to use a tool to drag the cut rod to move the rod away from the shearing position. Then the next shearing operation is carried out. The whole process requires multiple manual interventions, the whole operation process is not smooth, the labor intensity of the operators is high, the materials are seriously wasted, and the work efficiency is low.

[0064] The synchronous movement of the conveyor belt 13 is a dual-motor operation. The first feeding motor 10 and the second feeding motor 11 control a chain conveyor belt 13 respectively, and are provided with pressure sensors. When the pressure sensor on one side becomes larger, it is judged that the rod is offset, and the corresponding motor operating power is adjusted. At this time, the motor on the side with greater resistance accelerates, and the motor power on the other side decreases and slows down. Until the rod is adjusted back to its original position, this process has a fast response speed and high efficiency.

[0065] In this embodiment, the rods are flipped from the chain conveyor 13 to the feed roller 17 and then returned to their original positions, thereby turning the rods and preventing the chain conveyor 13 from continuing to work and causing the rods to fall, thus easily solving the problem of manual turning of the rods.

[0066] In this embodiment, the offset homing device 16 is arranged between the gift roller and the chain conveyor 13, and the required number of offset homing devices 16 is arranged according to the length of the feeding roller 17. A sensor is arranged on the feeding roller 17, and when the feeding roller 17 is running, the sensor detects the bar information, and the cylinder connected to the offset homing device 16 operates to push the offset bar back to the feeding roller 17, and continue to move toward the knife cylinder 3 to complete the cutting operation of the bar.

[0067] In this embodiment, the rod head positioning device 22 is fixed on the rod shearing main machine 77. The rod head positioning cylinder 2727 drives the fixed length to descend along the guide rail until it stops at the center of the knife cylinder 3, and assists in positioning the rod head shearing position, replacing manual adjustment.

[0068] Through the above improvement measures, the continuity of the rod shearing machine is greatly improved and the degree of automation of the equipment is improved.

[0069] Example 3

[0070] After the alloy bars are cast from the deep well, the formed bars are transported to the storage device and placed horizontally on the chain conveyor 13. The operator clicks on the start button, the feeding motor works, the motor drives the transmission gear to rotate, and the gear drives the chain conveyor to move. When the bars tilt during the movement, the pressure sensor transmits the signal to the feeding belt motor, and the motor adjusts the speed according to the pressure to keep the bars from tilting. The feeding roller device 17 is equipped with a sensor. If the sensor does not detect the bars, the rod turning cylinder 14 works, pushing the rod turning stopper 15 and transporting the bars to the feeding roller device 17 together.

[0071] In this embodiment, the feed roller, driven by the belt 18, drives the rod to move quickly toward the knife barrel 3 of the shearing main unit 7. The shearing program is set by the operator with the cutting length and the number of scissor movements according to the length of the rod and customer needs. When the scissors are in action for the first time in the set program, it is determined that the rod head needs to be sheared. At this time, the rod has been transported to the knife barrel. The rod head positioning cylinder 27 is in operation, and the cylinder drives the fixed length to descend along the guide rail to assist in positioning the rod head shearing position, replacing manual adjustment. The rod slowly exits the knife barrel, and then enters the knife barrel until it hits the baffle 28 of the rod head positioning device. The scissors operate under the drive of the rod shearing main unit to complete the rod head shearing operation.

[0072] In this embodiment, the rod head positioning cylinder is retracted, and the tightening positioning device 1 moves to the distance of the required rod length. Driven by the feeding roller, the rod is pushed against the tightening positioning device, and the scissors work to cut the rod. While the scissors are retracted, the active pushing device 8 works to push the cut rod to the discharge port. Until the last cut set by the program, that is, the rod tail is cut. At this point, the sensor on the feeding roller cannot sense the rod, the chain conveyor belt motor works, and the rod turning device works, and the above actions continue.

[0073] When the bar runs on the feeding roller and reaches the knife barrel, but the sensor on the bar head positioning device does not sense the bar, the scissors will not move. At this time, the system will determine that the bar is bent and force the feeding device to operate. The clamping device clamps the bar under the action of the clamping cylinder 22. The forced feeding cylinder 23 pushes the fixed bracket 4 to move along the slide rail 21, pushing the bar into the knife barrel, and the program executes the first cut of the bar shearing program. The bar head positioning device operates, and the bar head positioning cylinder operates. The cylinder drives the fixed length to descend along the guide rail to the center of the knife barrel. The bar hits the bar head positioning device, and the scissors operate to cut the bar head, and the bar head falls into the collection box along the small discharge port. The shearing system continues to execute the shearing program.

[0074] In this embodiment, the shearing program is still running, and the sensor on the feed roller senses the bar, but the sensor at the edge of the feed roller feels the bar, then the system determines that the bar is offset. The offset return device is triggered to operate. The offset return cylinder 24 operates to push the offset bar back to the feed roller to continue the next shearing operation.

[0075] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic rod shearing machine for aluminum alloy round rods with improved efficiency, comprising a rod shearing main machine (7), characterized in that: The rod shearing main machine (7) is provided with a knife barrel (3) for shearing rods, an active pushing device (8) for pushing the cut rods out of the rod shearing main machine (7), a rod head positioning device (2) for positioning the rod head and the rod tail, a plurality of feeding rollers (17) for feeding, an offset return device (16) for pushing the offset rods back to the feeding rollers (17), and a forced feeding device for fixing the feeding, wherein the forced feeding device comprises a fixing frame (4) for fixing the rods and a slide rail (21) slidably arranged on the rod shearing main machine (7) for feeding the rods into the knife barrel (3).

2. The automatic rod shearing machine for aluminum alloy round rods with improved efficiency according to claim 1 is characterized in that: It also includes a storage device for pre-storing bar materials, the storage device includes at least two symmetrically arranged conveyor belts (13) for storing and transporting bar materials and a feeding motor for driving the conveyor belts (13), the feeding motor is provided with a transmission gear (12) for transmission connection with the conveyor belts (13).

3. The automatic rod shearing machine for aluminum alloy round rods with improved efficiency according to claim 2 is characterized in that: The conveyor belt (13) is provided with two groups and a pressure sensor for detecting the pressure of the rod on the conveyor belt is provided at the conveying end. The feeding motors are respectively provided as a first feeding motor (10) and a second feeding motor (11). The pressure sensor is electrically connected to the first feeding motor (10) and the second feeding motor (11) to adjust the deviation of the rod during transmission.

4. The automatic rod shearing machine for aluminum alloy round rods with improved efficiency according to claim 2 or 3, characterized in that: It also includes a rod turning device for transporting the rod material from the storage device to the feeding roller (17), and the rod turning device includes a rod turning stopper (15) for blocking and releasing the rod material and a rod turning cylinder (14) for controlling the rod turning stopper (15).

5. The automatic rod shearing machine for aluminum alloy round rods with improved efficiency according to claim 4 is characterized in that: The rod turning stopper (15) comprises an arc-shaped baffle plate whose lower end is rotatably connected to the material storage device for blocking the rod material, a rod turning connecting rod (25) for fixing the lower end of the arc-shaped baffle plate, and a rod turning shaft sleeve (26) connected to the rod turning cylinder (14); the rod turning shaft sleeve (26) is provided with a hinged rod for pushing and pulling the arc-shaped baffle plate to rotate, and the hinged rod is slidably arranged on the rod turning connecting rod (25).

6. The automatic rod shearing machine for aluminum alloy round rods with improved efficiency according to claim 2 or 3, characterized in that: The offset return device (16) is arranged between the feeding roller (17) and the conveyor belt (13), and comprises a distance sensor arranged on the feeding roller (17), an offset return cylinder (24) electrically connected to the distance sensor, and a gripper for pushing the rod.

7. An automatic rod shearing machine for aluminum alloy round rods with improved efficiency according to any one of claims 1 to 3, characterized in that: The feeding roller (17) is a concave roller whose shape is adapted to the bar material, and is provided with a driving device (9) for driving the rotation thereof and a transmission member (18) for transmission connection between the driving device (9) and the feeding roller (17).

8. An automatic rod shearing machine for aluminum alloy round rods with improved efficiency according to any one of claims 1 to 3, characterized in that: The club head positioning device (2) comprises a baffle (28) for fixing the club head or the club tail, a length setting device for assisting in positioning the club head, and a club head positioning cylinder (27) for driving the baffle (28) to rise and fall.

9. An automatic rod shearing machine for aluminum alloy round rods with improved efficiency according to any one of claims 1 to 3, characterized in that: The shear rod main unit (7) is also provided with a discharge port (6) for discharging materials, a rod support (5) provided at the discharge port (6) and a tightening and positioning device (1) for positioning the rods. The tightening and positioning device (1) comprises a tightening rod (20) for limiting the position of the rods and a threaded rod (19) for fixing and adjusting the tightening rod (20). The threaded rod (19) is connected to the shear rod main unit (7).

10. An automatic rod shearing machine for aluminum alloy round rods with improved efficiency according to any one of claims 1 to 3, characterized in that: The fixing frame (4) is provided with a clamping device (22) for clamping and fixing the bar material and a forced feeding cylinder (23) for controlling the clamping device (22).

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