Bending die capable of adjusting bending angle

Abstract

The invention discloses a bending die capable of achieving bending angle adjustment, and relates to the technical field of bending. The device comprises a device body, a control module is arranged in the device body, a U-shaped groove is formed in the device body, two electric sliding rails are arranged on the vertical face of the inner wall of the U-shaped groove of the device body, the electric sliding rails communicate with the control module in the device body, and the two electric sliding rails are symmetrically distributed about the axis of the device body; and a lower mold is arranged at the bottom of the inner wall of the U-shaped groove of the device body, a forming mold is rotationally installed in the lower mold, and a heating assembly is arranged on the front face of the lower mold. According to the metal plate bending device, bending adjustment of different angles of a plate is achieved, meanwhile, preheating treatment is conducted on the metal plate in the bending process, the machining stress of the metal plate in the machining process is reduced, and the cracking risk of the plate is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of bending, and specifically provides a bending die for realizing bending angle adjustment. Background Art

[0002] A bending die is a tool used by a bending machine to form and process sheet materials. The bending machine mainly realizes the processing of the shape of an article by changing the physical state of the formed material, and is a tool for making a blank into a workpiece with a specific shape and size under the action of the pressure of the bending machine.

[0003] The patent with the patent publication number CN107824689A discloses a bending die for realizing bending angle adjustment, which includes an upper die and a lower die. The upper die includes an upper cover plate, an upper block, an upper die base, and an upper template fixedly connected in sequence from top to bottom. The lower die includes a lower support plate, a lower backing plate, a lower block, a lower die base, and a lower die base fixedly connected in sequence from bottom to top. At least one group of bending upper punches is installed on the upper template through pin locking. At least one group of bending upper punches is symmetrically arranged and finely adjusted through an angle adjustment component. An upper positioning device is arranged between at least one group of bending punches. The bottom of the positioning block included in the upper positioning device is provided with a first arc-shaped end face. A bending lower punch is correspondingly arranged on the lower die base, and the top of the bending lower punch is provided with a second arc-shaped end face. The structure of this patent is reasonable and compact. The angle adjustment component is arranged corresponding to the bending upper punch, and the angle of the bending upper punch can be adjusted by rotation, so as to realize the adjustment of different bending angles, with wide adaptability and low industrialization cost.

[0004] However, this device still has deficiencies: This device can adjust the angle of the bending lower punch, but it is difficult to preheat the metal sheet during the bending process of the metal sheet, so it is difficult to reduce the processing stress during the processing of the metal sheet, resulting in a decrease in the toughness of the metal sheet and an increase in the risk of sheet deformation or cracking, and to a certain extent, reducing the yield rate of the metal sheet. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a bending die for realizing bending angle adjustment, which solves the problems put forward in the above background art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A bending die for realizing the adjustment of the bending angle, comprising a device main body, wherein a control module is arranged inside the device main body, and a U-shaped groove is arranged inside the device main body. On the vertical surface of the inner wall of the U-shaped groove of the device main body, two electric slide rails are arranged. The electric slide rails are communicated with the internal control module of the device main body. The two electric slide rails are symmetrically distributed with respect to the axis of the device main body. A driving rod is slidably installed inside the electric slide rail. A upper die is fixedly installed on the front surface of the driving rod. A lower die is arranged at the bottom of the inner wall of the U-shaped groove of the device main body. A forming die is rotatably installed inside the lower die. A heating component is arranged on the front surface of the lower die. Protective plates are fixedly installed on the outer walls on both left and right sides of the device main body. A limiting frame is fixedly installed on the vertical surface of the side of the protective plate close to the center of the device main body. Two rotating rods are fixedly installed at equal intervals on the vertical surface of the side of the protective plate close to the center of the device main body. The left and right ends of the rotating rod located above the inner wall of the protective plate are located inside the limiting frame. A micro motor is built in the rotating rod located below the inner wall of the protective plate, and the top of the outer wall of the rotating rod is parallel to the top of the forming die. A number of centering wheels are fixedly installed at equal intervals on the vertical surface of the outer wall of the rotating rod away from the center of the device main body. A number of telescopic brush plates are fixedly installed at equal intervals on the vertical surface of the side of the centering wheel close to the center of the device main body, and the telescopic end of the telescopic brush plate is longer than the arc surface of the outer wall of the centering wheel. A round rod is fixedly installed inside the U-shaped groove of the telescopic end of the telescopic brush plate. The outer wall of the round rod penetrates and is rotatably installed with a friction cotton. A hollow block is slidably installed on the top of the outer wall of the round rod. A contact plate is fixedly installed on the flat surface of the outer wall of the telescopic brush plate. Before bending the metal sheet, the heating component is started through the control module to preheat the lower die and the forming die. Then, the bottom of the sheet is placed on the top of the forming die. The electric slide rail is started, and the electric slide rail drives the driving rod to slide downward along its interior. The driving rod drives the upper die to move synchronously. When the bottom of the upper die touches the top surface of the sheet, it continues to descend driven by the electric slide rail. At this time, the downward pressure generated by the sheet causes the forming die to rotate along the inside of the lower die. When the forming die rotates, it bends the sheet, and the descending amplitude of the upper die, that is, the pressing amplitude on the sheet, is controlled by the electric slide rail and the driving rod; After starting the motor built in the lower rotating rod, the rotating rod starts to rotate. When the sheet reaches the specified processing position, the motor stops rotating, and the protective plate limits the rotating rod. At the same time, the upper rotating rod adjusts the distance inside the limiting frame according to the thickness of the sheet. When the lower rotating rod rotates, it drives the centering wheel to rotate. When the top of the outer wall of the centering wheel touches the bottom of the sheet during the rotation of the centering wheel, at this time, the centering wheel conveys the sheet towards the inside of the device main body through the rotating force. When the top of the sheet conveyed towards the inside of the device main body touches the centering wheel on the outer wall of the upper rotating rod and causes friction, at this time, the upper centering wheel rotates in the same direction as the lower centering wheel through the friction force;When the center wheel rotates, it drives the telescopic brush plate to rotate. After the arc surface of the telescopic brush plate contacts the surface of the metal plate, it generates a resistance force and shrinks toward the inside of the telescopic brush plate until it is parallel to the arc surface of the outer wall of the center wheel. At this time, the telescopic end of the telescopic brush plate is always in close contact with the outer wall plane of the plate through the elastic force of the spring. At the same time, the telescopic end of the telescopic brush plate drives the round rod to rotate and shrink. The round rod drives the friction cotton to move synchronously. When the arc surface of the friction cotton contacts the plate, it generates friction force, prompting the friction cotton to start rotating and rubbing the surface of the plate. At the same time, the round rod drives the hollow block to move synchronously with the contraction of the telescopic brush plate. After the hollow block is resisted by the inclined surface of the resistance plate, it slides to the left along the outer wall of the round rod. The hollow block resists the friction cotton and slides synchronously. Then the friction cotton is reset by the spring. ;

[0007] According to the above technical solution, a U-shaped groove is opened on the arc surface of the telescopic end of several telescopic brush plates, and a spring is built into the telescopic brush plate. The inclined surface of the resistance plate is located on the movement trajectory of the hollow block. The front of the protective plate is provided with an anti-deviation device for facilitating the metal sheet to enter the main body of the device for bending at a stable and centered position.

[0008] According to the above technical scheme, the anti-deviation device includes an arc groove rod, a connecting rod, a telescopic impact plate and a U-mouth plate. The arc groove rod passes through one end close to the center of the device body and is fixedly installed on the vertical surface of the outer wall of the lower rotating rod. The back end of the connecting rod is slidably installed inside the arc groove of the arc groove rod. The back of the telescopic impact plate is fixedly installed on the front end of the connecting rod. The back of the U-mouth plate is fixedly installed on the front of the protective plate. The back of the telescopic impact plate is slidably installed on the inner wall of the U-mouth plate. When the lower rotating rod rotates, the arc groove rod is driven to rotate. When the arc groove rod rotates, the arc groove restricts the connecting rod, causing the connecting rod to slide left and right inside the arc groove rod. The connecting rod drives the telescopic impact plate to slide synchronously along the inner wall of the U-mouth plate. When the telescopic impact plates on both sides move synchronously, they impact the left and right vertical surfaces of the plate entering the device body in the center.

[0009] According to the above technical scheme, the anti-deviation device also includes a T-shaped block and a reset plate. The T-shaped block is fixedly installed on the vertical surface of the outer wall of the telescopic end of the telescopic impact plate at one end close to the center of the rotating rod, and the reset plate is fixedly installed on the vertical surface of the inner wall of the telescopic impact plate on the side away from the center of the rotating rod, and the arc surface of the reset plate is located on the movement trajectory of the T-shaped block. The back of the telescopic impact plate is provided with an anti-particle device for preventing metal debris from falling from the top of the metal plate after bending. When the telescopic end of the telescopic impact plate hits the vertical surface of the metal plate, a resistance force is generated to shrink toward the inside of the telescopic impact plate. The telescopic end of the telescopic impact plate pushes the T-shaped block to move away from the center of the device body, and the T-shaped block hits the arc surface of the reset plate to cause the reset plate to deform. Then the telescopic end of the telescopic impact plate is reset by the elastic force of the reset plate and repeats this process.

[0010] According to the above technical solution, the anti-offset device further includes a receiving plate, a convex spherical rod, and a resilient plate. The side of the receiving plate away from the center of the rotating rod is fixedly installed on the vertical surface of the outer wall of the T-shaped block. The bottom of the convex spherical rod is fixedly installed at the edge of the top of the receiving plate. The side of the resilient plate away from the center of the T-shaped block is fixedly installed on the inner wall plane of the telescopic end of the telescopic impact plate. The resilient plate is located on the arc movement trajectory of the convex spherical rod. At the same time, the T-shaped block drives the receiving plate to move away from the center of the device body. The receiving plate drives the convex spherical rod to move synchronously. The arc surface of the convex spherical rod will contact the resilient plate and cause the resilient plate to bend and deform. When the convex spherical rod continuously moves past the resilient plate, during the process of the resilient plate resetting by its own resilience, it swings back and forth to generate a shoveling force on the telescopic impact plate. Through the transmission of force, when the telescopic impact plate contacts the metal plate, it causes the plate to vibrate synchronously.

[0011] According to the above technical solution, the anti-particle device includes an L-shaped plate, a blower, an angular plate, and an air duct. The vertical surface of the side of the L-shaped plate close to the center of the device body penetrates and is fixedly installed on the outer wall of the T-shaped block. The side of the blower close to the center of the device body is slidably installed on the vertical surface of the outer wall of the protective plate through a spring. The top of the angular plate is fixedly installed at the bottom of the blower. The inclined surface of the angular plate is located on the movement trajectory of the L-shaped plate. The side of the air duct away from the center of the device body is fixedly installed on the inner wall of the blower. The air duct is directed at the processing area between the upper die and the lower die. When the T-shaped block moves to the left and resets, it drives the L-shaped plate to move synchronously. The L-shaped plate contacts the inclined surface of the angular plate to generate an upward thrust. At this time, the angular plate generates an upward force and pushes the blower to slide upward along the outer wall of the protective plate. Start the blower, and the blower blows air on the processing area and keeps it on. When the L-shaped plate no longer contacts the angular plate, the blower resets by the elastic force of the spring. At the same time, the blower drives the air duct to move synchronously.

[0012] According to the above technical solution, the anti-particle device further includes a fixed ring, a moisture-proof plate, a cross bar, and a sliding ring. The fixed ring is fixedly installed inside the protective plate. The outer wall of the moisture-proof plate is slidably installed on the inner wall of the fixed ring. The outer wall of the cross bar is fixedly installed on the side of the moisture-proof plate away from the fixed ring. A spiral groove is provided on the outer wall of the cross bar. The inner wall of the sliding ring penetrates and is slidably installed on the outer surface of the cross bar. The L-shaped plate drives the sliding ring to slide leftward and reset along the outer wall of the spiral groove of the cross bar through a vertical rod. When the sliding ring slides, due to the restriction of the non-self-locking spiral groove on the outer wall of the cross bar and the contact between the built-in block of the sliding ring and the inner wall of the spiral groove, a rotational force is generated to make the cross bar start to rotate. The cross bar drives the moisture-proof plate to rotate along the inner wall of the fixed ring.

[0013] According to the above technical solution, the fixed ring is located below the blower. The top of the sliding ring is fixedly installed at the bottom of the L-shaped plate through a vertical rod, and the inner wall of the sliding ring contacts the spiral groove on the outer wall of the cross bar.

[0014] The present invention provides a bending die for realizing the adjustment of the bending angle. It has the following beneficial effects: (1) The present invention realizes the bending adjustment of the plate at different angles by means of the coordination of the electric slide rail, the driving rod, the upper mold, the lower mold, the forming mold and the heating assembly, and realizes the preheating treatment of the metal plate during the bending process, thereby reducing the processing stress of the metal plate during the processing and reducing the risk of cracking of the plate; by means of the coordination of the protective plate, the limit frame, the rotating rod, the centering wheel, the telescopic brush plate, the round rod, the friction cotton, the hollow block and the contact plate, it is firstly realized that plates of different thicknesses can always be centered inside the main body of the device and fit on the top of the forming mold, thereby realizing precise positioning while reducing the force required for manual support, improving the practicality of the product and reducing the labor of workers; it also causes the telescopic brush plate and the friction cotton to rotate and slide and brush the surface of the plate, thereby ensuring the cleanliness of the surface of the plate and preventing scratches or dents from being left when the plate is bent, thereby reducing the quality; at the same time, the telescopic end of the telescopic brush plate is always in close contact with the surface of the plate through the reverse thrust of the spring, thereby improving the stability of the plate during bending.

[0015] (2) The present invention, through the setting of the anti-deviating device, cooperates with the lower rotating rod, arc groove rod, connecting rod, telescopic impact plate, U-mouth plate, T-shaped block, reset plate, receiving plate, convex ball rod and tough plate, firstly, ensures that the plate enters the center trajectory of the device body, which is different from the traditional feeding that requires manual correction by the staff to avoid the plate from deviating from its own predetermined bending direction and causing damage to the workpiece, thereby improving the feeding accuracy and feeding speed; secondly, after the telescopic impact plate hits the metal plate, the elastic force of the reset plate slowly shrinks to reduce the impact force, thereby avoiding the plate from being subjected to excessive impact force on both sides, causing the center of the plate to bulge or dent and other deformation phenomena, affecting the appearance integrity of the plate; finally, the rust on the surface of the plate and other attachments are shaken off or the adhesion strength of the attachments to the plate is reduced, thereby improving the removal efficiency of the telescopic brush plate when brushing the attachments, and at the same time relying on vibration to effectively avoid the movement obstruction between the plate and the external conveying equipment during the movement.

[0016] (3) The present invention, through the setting of the particle-proof device, cooperates with the T-shaped block, L-shaped plate, fan, angle plate, air duct, fixed ring, moisture-proof plate, cross bar and sliding ring, firstly expands the blowing range of the fan to the processing area to avoid fixed-point blowing, blows away the debris particles generated when the plate is bent to avoid scratching the palm of the staff when holding it, and neutralizes the heat waves emitted by the heating component in the processing area through wind power, thereby avoiding the preheating temperature of the plate in the processing area being too high, which leads to a decrease in the toughness of the plate; it also causes the moisture-proof plate to rotate to concentrate on absorbing the atomized water vapor generated by the alternation of hot and cold in the processing area, ensuring that the preheating temperature in the processing area is appropriate while avoiding the increase of humidity, which leads to accelerated fatigue of the metal properties of the metal plate and shortening the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the present invention as a whole; Figure 2 It is a schematic diagram of the internal structure of the present invention as a whole; Figure 3 Schematic diagram of the structure around the centering wheel of the present invention; Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at position A in the present invention; Figure 5 Schematic diagram of the anti-offset device of the present invention; Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at position B in the present invention; Figure 7 Schematic diagram of the anti-particle device of the present invention; Figure 8 Overall display schematic diagram of the anti-particle device of the present invention.

[0018] In the figure: 1, device main body; 2, electric slide rail; 21, driving rod; 22, upper mold; 3, lower mold; 31, forming mold; 32, heating component; 4, anti-offset device; 41, arc groove rod; 42, connecting rod; 43, telescopic impact plate; 44, U-shaped plate; 45, T-shaped block; 46, reset piece; 47, receiving plate; 48, convex ball rod; 49, resilient plate; 5, anti-particle device; 51, L-shaped plate; 52, fan; 53, angular plate; 54, air duct; 55, fixing ring; 56, moisture-proof plate; 57, cross bar; 58, sliding ring; 6, protective plate; 7, limiting frame; 8, rotating rod; 9, centering wheel; 10, telescopic brush plate; 11, round rod; 12, friction cotton; 13, hollow block; 14, abutting plate. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Please refer to Figures 1-8, an embodiment of the present invention is: a bending die for realizing bending angle adjustment, including a device main body 1. A control module is arranged inside the device main body 1, and a U-shaped groove is arranged inside the device main body 1. Two electric slide rails 2 are arranged on the vertical surface of the inner wall of the U-shaped groove of the device main body 1. The electric slide rails 2 are communicated with the control module inside the device main body 1. The two electric slide rails 2 are symmetrically distributed with respect to the axis of the device main body 1. A driving rod 21 is slidably installed inside the electric slide rail 2. A upper die 22 is fixedly installed on the front surface of the driving rod 21. A lower die 3 is arranged on the bottom of the inner wall of the U-shaped groove of the device main body 1. A forming die 31 is rotatably installed inside the lower die 3. A heating component 32 is arranged on the front surface of the lower die 3. Protective plates 6 are fixedly installed on the outer walls on both the left and right sides of the device main body 1. A limiting frame 7 is fixedly installed on the vertical surface of the side of the protective plate 6 close to the center of the device main body 1. Two rotating rods 8 are equidistantly and fixedly installed on the vertical surface of the side of the protective plate 6 close to the center of the device main body 1. The left and right ends of the rotating rod 8 located above the inner wall of the protective plate 6 are located inside the limiting frame 7. A micro motor is arranged inside the rotating rod 8 located below the inner wall of the protective plate 6, and the top of the outer wall of the rotating rod 8 is parallel to the top of the forming die 31. A number of centering wheels 9 are fixedly installed on the outer wall of the rotating rod 8 away from the center of the device main body 1. A number of telescopic brush plates 10 are equidistantly and fixedly installed on the vertical surface of the side of the centering wheel 9 close to the center of the device main body 1. And the telescopic end of the telescopic brush plate 10 is longer than the arc surface of the outer wall of the centering wheel 9. A round rod 11 is fixedly installed inside the U-shaped groove at the telescopic end of the telescopic brush plate 10. A friction cotton 12 is penetrated and rotatably installed on the outer wall of the round rod 11. A hollow block 13 is slidably installed on the top of the outer wall of the round rod 11. A contact plate 14 is fixedly installed on the flat surface of the outer wall of the telescopic brush plate 10. Through the above cooperation, while realizing the bending adjustment of the plate at different angles, the preheating treatment of the metal plate during the bending process is realized, the processing stress in the processing of the metal plate is reduced, and the risk of plate cracking is reduced; through the above cooperation, plates of different thicknesses can always enter the device main body 1 stably and centered and fit the top of the forming die 31, realizing accurate positioning while reducing the force required for manual hand support, improving the product practicability and reducing the labor intensity of workers; through the above cooperation, the telescopic brush plate 10 and the friction cotton 12 rotate and slide-brush the surface of the plate, ensuring the cleanliness of the plate surface, preventing scratches or dents from being left on the plate during bending and reducing the quality, and at the same time, the telescopic end of the telescopic brush plate 10 is always tightly attached to the plate surface by the spring reaction force, thereby improving the stability of the plate during bending.

[0021] U-shaped grooves are formed at the arc surfaces of the telescopic ends of a number of telescopic brush plates 10, and springs are arranged inside the telescopic brush plates 10. The inclined surface of the contact plate 14 is located on the movement track of the hollow block 13. An anti-offset device 4 for facilitating the metal plate to enter the device main body 1 stably and centered during bending is arranged on the front surface of the protective plate 6.

[0022] When in use, before bending the metal sheet, the control module is used to start the heating component 32 to preheat the lower mold 3 and the forming mold 31, and then the bottom of the sheet is placed on the top of the forming mold 31, and the electric slide rail 2 is started. The electric slide rail 2 drives the driving rod 21 to slide downward along its own interior, and the driving rod 21 drives the upper mold 22 to move synchronously. When the bottom of the upper mold 22 hits the top surface of the sheet, it is driven to continue to descend through the electric slide rail 2. At this time, the sheet generates downward pressure to prompt the forming mold 31 to rotate along the inside of the lower mold 3. When the forming mold 31 rotates, the sheet is bent, and the electric slide rail 2 and the driving rod 21 control the descending amplitude of the upper mold 22, that is, the pressing amplitude of the sheet. When the plate reaches the specified processing position, the motor stops rotating, and the protective plate 6 limits the rotating rod 8. At the same time, the upper rotating rod 8 adjusts the spacing inside the limit frame 7 according to the thickness of the plate. When the lower rotating rod 8 rotates, it drives the center wheel 9 to rotate. When the center wheel 9 rotates, the top of the outer wall contacts the bottom of the plate. At this time, the center wheel 9 transports the plate toward the inside of the device body 1 through the rotation force. When the plate is transported toward the inside of the device body 1, the top will contact the center wheel 9 of the outer wall of the upper rotating rod 8. The friction force is generated by the upper center wheel 9 and the lower center wheel 9, and the above cooperation can ensure that plates of different thicknesses can always be centered inside the device body 1 and fit the top of the molding mold 31, thereby achieving precise positioning and reducing the force required for manual support, thereby improving the practicality of the product and reducing the labor of workers. When the center wheel 9 rotates, it drives the telescopic brush plate 10 to rotate. The arc surface of the telescopic end of the telescopic brush plate 10 contacts the surface of the metal plate and generates a resistance force to shrink toward the inside of the telescopic brush plate 10 until it is parallel to the arc surface of the outer wall of the center wheel 9. At this time, the telescopic end of the telescopic brush plate 10 is always close to the outer wall plane of the plate through the elastic force of the spring. At the same time, the telescopic end of the telescopic brush plate 10 drives the round rod 11 to rotate and contract, and the round rod 11 drives the friction The wiping cotton 12 moves synchronously. When the arc surface of the friction cotton 12 contacts the plate, friction will be generated, prompting the friction cotton 12 to start rotating and rubbing the surface of the plate. At the same time, the round rod 11 drives the hollow block 13 to move synchronously as the telescopic brush plate 10 contracts. After the hollow block 13 is resisted by the inclined surface of the resistance plate 14, it slides to the left along the outer wall of the round rod 11. The hollow block 13 resists the friction cotton 12 and slides synchronously. Then the friction cotton 12 is reset by the spring. The above cooperation prompts the telescopic brush plate 10 and the friction cotton 12 to rotate and slide on the surface of the plate to ensure the cleanliness of the plate surface and prevent scratches or dents from reducing the quality when the plate is bent. At the same time, the telescopic end of the telescopic brush plate 10 is always close to the surface of the plate through the spring reverse thrust, thereby improving the stability of the plate when bending.

[0023] See alsoFigures 1-8 , on the basis of the above embodiments, in another embodiment of the present invention, an anti-offset device 4 is further included; The anti-offset device 4 includes an arc groove rod 41, a connecting rod 42, a telescopic impact plate 43 and a U-shaped plate 44. One end of the arc groove rod 41 close to the center of the device body 1 penetrates and is fixedly installed on the vertical surface of the outer wall of the lower rotating rod 8. One end of the back surface of the connecting rod 42 is slidably installed inside the arc groove of the arc groove rod 41. One end of the front surface of the telescopic impact plate 43 is fixedly installed on the back surface of the connecting rod 42. One end of the back surface of the U-shaped plate 44 is fixedly installed on the front surface of the protection plate 6. The back surface of the telescopic impact plate 43 is slidably installed inside the inner wall of the U-shaped plate 44. Through the above cooperation, the centered trajectory of the sheet material entering the device body 1 is ensured. Different from the traditional feeding method that requires manual correction by workers to avoid the sheet material deviating from its predetermined bending orientation and causing damage to the workpiece, the feeding accuracy and feeding speed are improved.

[0024] The anti-offset device 4 further includes a T-shaped block 45 and a reset piece 46. One end of the T-shaped block 45 close to the center of the rotating rod 8 is fixedly installed on the vertical surface of the outer wall of the telescopic end of the telescopic impact plate 43. One side of the reset piece 46 away from the center of the rotating rod 8 is fixedly installed on the vertical surface of the inner wall of the telescopic impact plate 43, and the arc surface of the reset piece 46 is located on the movement trajectory of the T-shaped block 45. A particle prevention device 5 for preventing metal debris from falling off the top of the metal sheet after bending is arranged on the back surface of the telescopic impact plate 43. Through the above cooperation, after the telescopic impact plate 43 touches the metal sheet, it slowly contracts through the elastic force of the reset piece 46 to reduce the impact force, avoiding excessive impact force on both sides of the sheet material, which may cause deformation phenomena such as protrusions or depressions at the center of the sheet material and affecting the appearance integrity of the sheet material.

[0025] The anti-offset device 4 further includes a receiving plate 47, a convex ball rod 48 and a resilient plate 49. One side of the receiving plate 47 away from the center of the rotating rod 8 is fixedly installed on the vertical surface of the outer wall of the T-shaped block 45. The bottom of the convex ball rod 48 is fixedly installed at the top edge of the receiving plate 47. One side of the resilient plate 49 away from the center of the T-shaped block 45 is fixedly installed on the inner wall plane of the telescopic end of the telescopic impact plate 43. The resilient plate 49 is located on the movement trajectory of the arc surface of the convex ball rod 48. Through the above cooperation, the rust and other attachments on the surface of the sheet material are shaken off or the adhesion strength of the attachments to the sheet material is reduced, improving the removal efficiency when the telescopic brush plate 10 brushes the attachments, and at the same time effectively avoiding the movement obstruction between the sheet material and the external conveying equipment during the movement of the sheet material by relying on the vibration.

[0026] During use, when the lower rotating rod 8 rotates, it drives the arc groove rod 41 to rotate. When the arc groove rod 41 rotates, the restriction of the arc groove on the connecting rod 42 causes the connecting rod 42 to slide left and right inside the arc groove rod 41. The connecting rod 42 drives the telescopic impact plate 43 to slide synchronously along the inner wall of the U-shaped plate 44. When the two telescopic impact plates 43 move synchronously, they centrally impact the left and right vertical surfaces of the plate entering the device main body 1. Through the above cooperation, the central trajectory of the plate entering the device main body 1 is ensured. Different from traditional feeding, which requires manual correction by workers to avoid the plate deviating from its predetermined bending orientation and causing workpiece damage, the feeding accuracy and feeding speed are improved; when the telescopic end of the telescopic impact plate 43 touches the vertical surface of the metal plate, a resistance force is generated and it contracts towards the inside of the telescopic impact plate 43. The telescopic end of the telescopic impact plate 43 pushes the T-shaped block 45 to move away from the center of the device main body 1. The T-shaped block 45 touches the arc surface of the reset piece 46 and causes the reset piece 46 to deform. Then, the telescopic end of the telescopic impact plate 43 is reset by the elastic force of the reset piece 46 and repeats like this. Through the above cooperation, after the telescopic impact plate 43 touches the metal plate, it slowly contracts through the elastic force of the reset piece 46 to reduce the impact force, avoiding excessive impact force on both sides of the plate and causing deformation phenomena such as protrusions or depressions at the center of the plate, which affects the appearance integrity of the plate; at the same time, the T-shaped block 45 drives the receiving plate 47 to move away from the center of the device main body 1. The receiving plate 47 drives the convex ball rod 48 to move synchronously. The arc surface of the convex ball rod 48 will touch the resilient plate 49 and cause the resilient plate 49 to bend and deform. When the convex ball rod 48 continues to move past the resilient plate 49, during the process of the resilient plate 49 resetting by its own resilience, it swings back and forth and causes a shoveling force on the telescopic impact plate 43. Through the transmission of force, when the telescopic impact plate 43 touches the metal plate, it causes the plate to vibrate synchronously. Through the above cooperation, the rust and other attachments on the surface of the plate are shaken off or the adhesion strength of the attachments to the plate is reduced, improving the removal efficiency when the telescopic brush plate 10 brushes the attachments. At the same time, relying on the vibration, the movement obstruction between the plate and the external conveying equipment during the movement of the plate is effectively avoided.

[0027] Please refer to Figures 1-8 , on the basis of the above embodiment, in another embodiment of the present invention, an anti-particle device 5 is further included; The anti-particle device 5 includes an L-shaped plate 51, a fan 52, an angular plate 53 and an air duct 54. The vertical surface of the L-shaped plate 51 on the side close to the center of the device main body 1 penetrates and is fixedly installed on the outer wall of the T-shaped block 45. The fan 52 on the side close to the center of the device main body 1 is slidably installed on the vertical surface of the outer wall of the protection plate 6 through a spring. The top of the angular plate 53 is fixedly installed at the bottom of the fan 52. The inclined surface of the angular plate 53 is located on the movement track of the L-shaped plate 51. The side of the air duct 54 far from the center of the device main body 1 is fixedly installed on the inner wall of the fan 52. The air duct 54 faces the processing area between the upper die 22 and the lower die 3. Through the above cooperation, the blowing range of the fan 52 on the processing area is expanded to avoid fixed-point blowing, the debris particles generated when bending the sheet are blown away to prevent the staff from scratching their palms when holding the sheet, and the heat wave emitted by the heating component 32 in the processing area is neutralized by the wind, avoiding the reduction of the toughness of the sheet due to too high preheating temperature of the sheet in the processing area.

[0028] The anti-particle device 5 further includes a fixing ring 55, a moisture-proof plate 56, a cross bar 57 and a sliding ring 58. The fixing ring 55 is fixedly installed inside the protection plate 6. The outer wall of the moisture-proof plate 56 is slidably installed on the inner wall of the fixing ring 55. The outer wall of the cross bar 57 is fixedly installed on the side of the moisture-proof plate 56 far from the fixing ring 55. A spiral groove is formed on the outer wall of the cross bar 57. The inner wall of the sliding ring 58 penetrates and is slidably installed on the outer surface of the cross bar 57. Through the above cooperation, the moisture-proof plate 56 is urged to rotate to centrally absorb the atomized water vapor generated in the processing area due to the alternation of heat and cold, ensuring an appropriate preheating temperature in the processing area and avoiding the acceleration of the fatigue of the metal characteristics of the metal sheet and the reduction of its service life due to increased humidity.

[0029] The fixing ring 55 is located below the fan 52. The top of the sliding ring 58 is fixedly installed at the bottom of the L-shaped plate 51 through a vertical rod, and the inner wall of the sliding ring 58 is in contact with the spiral groove on the outer wall of the cross bar 57.

[0030] When in use, the T-shaped block 45 moves to the left and resets, driving the L-shaped plate 51 to move synchronously. The L-shaped plate 51 hits the inclined surface of the angle plate 53 to generate an upward thrust. At this time, the angle plate 53 generates an upward force and pushes the fan 52 to slide upward along the outer wall of the protective plate 6, and the fan 52 is started. The fan 52 blows air to the processing area and is continuously turned on without being turned off. When the L-shaped plate 51 no longer hits the angle plate 53, the fan 52 is reset by the elastic force of the spring, and at the same time, the fan 52 drives the air duct 54 to move synchronously. Through the above cooperation, the blowing range of the fan 52 to the processing area is expanded to avoid fixed-point blowing, and the debris particles generated when the plate is bent are blown to avoid scratching the palms of the staff when holding it, and the wind force is used to heat the processing area The heat emitted by the heating component 32 The heat wave is neutralized to avoid excessive preheating temperature of the plate in the processing area, which would reduce the toughness of the plate; the L-shaped plate 51 drives the sliding ring 58 to slide to the left along the outer wall of the spiral groove of the cross bar 57 and reset through the vertical rod. When the sliding ring 58 slides, it is restricted by the non-self-locking spiral groove on the outer wall of the cross bar 57 and the built-in block of the sliding ring 58 contacts the inner wall of the spiral groove, causing the cross bar 57 to generate a rotational force and start to rotate. The cross bar 57 drives the moisture-proof plate 56 to rotate along the inner wall of the fixed ring 55. Through the above cooperation, the moisture-proof plate 56 is rotated to concentrate on absorbing the atomized water vapor generated by the alternation of hot and cold in the processing area, ensuring that the preheating temperature in the processing area is appropriate while avoiding the increase of humidity, which would cause the metal properties of the metal plate to accelerate fatigue and reduce the service life.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bending mold for adjusting a bending angle, comprising a device body (1), a control module being arranged inside the device body (1), and a U-shaped groove being arranged inside the device body (1), two electric slide rails (2) being arranged on the vertical surface of the inner wall of the U-shaped groove of the device body (1), the electric slide rails (2) being connected to the control module inside the device body (1), the two electric slide rails (2) being symmetrically distributed around the axis of the device body (1), a driving rod (21) being slidably installed inside the electric slide rail (2), an upper mold (22) being fixedly installed on the front of the driving rod (21), a lower mold (3) being arranged at the bottom of the inner wall of the U-shaped groove of the device body (1), a forming mold (31) being rotatably installed inside the lower mold (3), and a heating component (32) being arranged on the front of the lower mold (3), characterized in that: The left and right outer walls of the device body (1) are both fixedly mounted with protective plates (6); a limit frame (7) is fixedly mounted on the vertical surface of the protective plate (6) close to the center of the device body (1); two rotating rods (8) are equidistantly and fixedly mounted on the vertical surface of the protective plate (6) close to the center of the device body (1); the left and right ends of the rotating rod (8) located above the inner wall of the protective plate (6) are located inside the limit frame (7); the rotating rod (8) located below the inner wall of the protective plate (6) has a built-in micro motor; the top of the outer wall of the rotating rod (8) is parallel to the top of the molding die (31); the outer wall of the rotating rod (8) is far from the outer wall of the rotating rod (8). A plurality of centering wheels (9) are fixedly installed at the center of the device body (1); a plurality of telescopic brush plates (10) are fixedly installed at equal distances on the vertical surface of the centering wheel (9) close to the center of the device body (1); and the telescopic end of the telescopic brush plate (10) is longer than the arc surface of the outer wall of the centering wheel (9); a round rod (11) is fixedly installed inside the U-shaped groove of the telescopic end of the telescopic brush plate (10); a friction cotton (12) is penetrated and rotatably installed on the outer wall of the round rod (11); a hollow block (13) is slidably installed on the top of the outer wall of the round rod (11); and a resistance plate (14) is fixedly installed on the outer wall plane of the telescopic brush plate (10).

2. A bending die for adjusting the bending angle according to claim 1, characterized in that: A U-shaped groove is provided at the arc surface of the telescopic end of the telescopic brush plates (10), and a spring is built into the telescopic brush plates (10). The inclined surface of the abutment plate (14) is located on the movement trajectory of the hollow block (13). The front of the protection plate (6) is provided with an anti-deviating device (4) for facilitating the metal plate to enter the device body (1) at a stable and centered position when bending.

3. A bending die for adjusting the bending angle according to claim 2, characterized in that: The anti-deviating device (4) comprises an arc groove rod (41), a connecting rod (42), a telescopic impact plate (43) and a U-mouth plate (44); the arc groove rod (41) has one end near the center of the device body (1) passing through and fixedly mounted on the vertical surface of the outer wall of the lower rotating rod (8); the back end of the connecting rod (42) is slidably mounted inside the arc groove of the arc groove rod (41); the back end of the telescopic impact plate (43) is fixedly mounted on the front end of the connecting rod (42); the back end of the U-mouth plate (44) is fixedly mounted on the front of the protective plate (6); and the back end of the telescopic impact plate (43) is slidably mounted on the inner wall of the U-mouth plate (44).

4. A bending die for adjusting the bending angle according to claim 3, characterized in that: The anti-deviating device (4) further comprises a T-shaped block (45) and a reset plate (46); the T-shaped block (45) is fixedly mounted on the vertical surface of the outer wall of the telescopic end of the telescopic impact plate (43) at one end close to the center of the rotating rod (8); the reset plate (46) is fixedly mounted on the vertical surface of the inner wall of the telescopic impact plate (43) at the side away from the center of the rotating rod (8); and the arc surface of the reset plate (46) is located on the movement track of the T-shaped block (45); and the back of the telescopic impact plate (43) is provided with an anti-particle device (5) for preventing metal debris from falling from the top of the metal plate after the metal plate is bent.

5. A bending die for adjusting the bending angle according to claim 4, characterized in that: The anti-deviating device (4) further comprises a receiving plate (47), a convex ball rod (48) and a tough plate (49); the receiving plate (47) is fixedly mounted on the vertical surface of the outer wall of the T-shaped block (45) at a side away from the center of the rotating rod (8); the bottom of the convex ball rod (48) is fixedly mounted on the top edge of the receiving plate (47); the tough plate (49) is fixedly mounted on the inner wall plane of the telescopic end of the telescopic collision plate (43) at a side away from the center of the T-shaped block (45); and the tough plate (49) is located on the arc motion trajectory of the convex ball rod (48).

6. A bending die for adjusting the bending angle according to claim 5, characterized in that: The particle prevention device (5) comprises an L-shaped plate (51), a fan (52), an angled plate (53) and an air duct (54); the vertical surface of the L-shaped plate (51) on the side close to the center of the device body (1) penetrates through and is fixedly mounted on the outer wall of the T-shaped block (45); the fan (52) on the side close to the center of the device body (1) is slidably mounted on the vertical surface of the outer wall of the protective plate (6) through a spring; the top of the angled plate (53) is fixedly mounted on the bottom of the fan (52); the inclined surface of the angled plate (53) is located on the movement trajectory of the L-shaped plate (51); the air duct (54) is fixedly mounted on the inner wall of the fan (52) on the side away from the center of the device body (1); and the air duct (54) is directly opposite to the processing areas of the upper mold (22) and the lower mold (3).

7. A bending die for adjusting the bending angle according to claim 6, characterized in that: The particle prevention device (5) further comprises a fixed ring (55), a moisture-proof plate (56), a cross bar (57) and a sliding ring (58); the fixed ring (55) is fixedly mounted inside the protective plate (6); the outer wall of the moisture-proof plate (56) is slidably mounted on the inner wall of the fixed ring (55); the outer wall of the cross bar (57) is fixedly mounted on a side of the moisture-proof plate (56) away from the fixed ring (55); a spiral groove is formed on the outer wall of the cross bar (57); and the inner wall of the sliding ring (58) penetrates through and is slidably mounted on the outer wall surface of the cross bar (57).

8. A bending die for adjusting the bending angle according to claim 7, characterized in that: The fixed ring (55) is located below the fan (52), and the top of the sliding ring (58) is fixedly mounted on the bottom of the L-shaped plate (51) via a vertical rod, and the inner wall of the sliding ring (58) is in contact with the spiral groove on the outer wall of the cross bar (57).

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