Automatic feeding and discharging mechanism of bending machine

Abstract

An automatic feeding and discharging mechanism for a bending machine is disclosed. The mechanism includes a conveying component located at the front of the bending machine body and a discharging mechanism located at the rear of the bending machine body. The conveying component includes support frames spaced apart on both sides, and a left brush plate assembly and a right brush plate A fixed on the support frames. The bending machine body has a left-right structure supported by a base frame. A feeding component is located between the two support frames and within the base frame at the bottom of the bending machine body. Pulleys A and B of the feeding component are both supported by lower bearing seats. A belt connects pulleys A and B, and pulley B is driven by motor A. Two guide rails are provided, respectively located on the lower sides of the belt and fixed to a base plate on the ground. A clamping and conveying component is slidably mounted on the guide rails. This invention has a reasonable structure, is easy to use, and effectively improves work efficiency and operational safety.

Description

Technical Field

[0001] This invention relates to a feeding and discharging mechanism, and more particularly to an automatic feeding and discharging mechanism for a bending machine. Background Technology

[0002] As is generally known, a bending machine is a mechanical processing device that can bend metal or alloy sheets to form structures including folds and flanges. It can change the bending direction and bending angle of metal or alloy sheets. The feeding mechanism and the discharging mechanism of the bending machine are used to complete the feeding operation of the workpiece to be processed and the discharging operation of the processed workpiece, respectively.

[0003] Most existing automatic loading and unloading mechanisms for bending machines involve fixing a truss to the equipment, with a slide rail on the truss for the material suction device to slide on. The sheet metal is then adsorbed by the suction cup of the material suction device and placed at the workstation for subsequent bending processes. The aforementioned material suction device is usually a suction cup with negative pressure adsorption function. The suction cup needs to be equipped with a vacuum generator to produce negative pressure, and its structure is complex and difficult to assemble. If a power failure occurs during operation, the sheet metal will fall directly from under the suction cup, which not only poses a safety hazard but also damages the sheet metal. Therefore, proposing a safe, convenient, and reasonably designed automatic loading and unloading mechanism for bending machines has become a basic requirement for those skilled in the art. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention discloses an automatic feeding and discharging mechanism for a bending machine.

[0005] To achieve the aforementioned objective, the present invention employs the following technical solution:

[0006] An automatic feeding and discharging mechanism for a bending machine includes a conveying component located at the front of the bending machine body and a discharging mechanism located at the rear of the bending machine body. The conveying component includes support frames spaced apart on the left and right sides, and a left brush plate group and a right brush plate A fixed on the support frames. The bending machine body has a left-right structure and is supported by a base frame. A feeding component is provided between the two support frames and in the base frame at the bottom of the bending machine body.

[0007] The feeding assembly includes pulley A, belt, pulley B, guide rail, and clamping conveyor assembly. Both pulley A and pulley B are supported by the lower bearing seats. A belt is externally connected between pulley A and pulley B. Pulley A is located at the front of the conveying assembly, and pulley B is located at the rear of the discharge mechanism. Pulley B is driven by motor A. Two guide rails are provided, respectively located on both sides of the lower part of the belt and fixed to the base plate on the ground. The clamping conveyor assembly is slidably mounted on the guide rail.

[0008] The material clamping and conveying assembly has two sets, each set including two identical sliding seats arranged opposite each other. Each sliding seat consists of two vertical plates (left and right), a lower base plate, a tilting clamp, and a cylinder C. The two vertical plates are fixed to the upper sides of the lower base plate. A lower fixing plate is connected to the lower rear of the vertical plates. The lower fixing plates of the two sliding seats in each set are correspondingly arranged, and a lead screw B is installed between the two lower fixing plates. Motor C is fixed on the rear fixed plate of the two sets of sliding seats, and its output end is fixedly connected to lead screw B. The front fixed plate is fixedly connected to the lead screw nut seat on lead screw B. Multiple support rods are arranged vertically between the two vertical plates. The upper support rod is horizontally inserted into the upper flange of cylinder C, inclined and fixedly connected to cylinder C. A mating plate is fixed on one side between the upper parts of the two vertical plates, and a flipping clamp is hinged on the other side. The flipping clamp is in the shape of "2". The upper opening contacts the upper end face of the mating plate. The lower front end is hinged to the upper part of the two vertical plates, and the lower rear end is hinged to the lifting end of cylinder C. The lifting ends of cylinder C on the two sliding seats in any set are arranged oppositely, and the flipping clamps on the two sliding seats are arranged correspondingly. The lower base plate is slidably mounted on the guide rail. The belt passes between the lower base plate and the fixed plate of each sliding seat. A belt clamp assembly is provided on the upper rear part of the lower base plate of any one of the two sets of sliding seats.

[0009] The automatic feeding and discharging mechanism of the bending machine includes a belt clamp assembly comprising a cylinder B, a support base, a clamping plate, and a base plate. The base plate of the belt clamp assembly is fixed to the upper rear part of the lower base plate. Vertical support bases extending upward are provided on both sides of the upper part of the base plate. The clamping plate is located between the two support bases and is connected by a rotating shaft in the upper end hole of the support base. The cylinder B is fixed to the upper left side of the clamping plate. The output end of the cylinder B passes through the clamping plate and a ball head is fixed on the output end. A clamping block is fixed on the lower right side of the clamping plate near the edge. The clamping opening between the clamping plate and the base plate is set at the upper and lower parts of the belt.

[0010] The automatic feeding and discharging mechanism of the bending machine includes a left-side brush plate assembly comprising brush plates E, D, and C fixed to the support frame. Clamping and positioning components are provided between brush plates E and D, and between brush plates D and C. Fixing plates are fixed to the inner surfaces of the support bars on the upper ends of both sides of the support frame. Positioning components are fixed to the upper surfaces of the left-side fixing plates on both sides. Guide rods are fixed to the sides between the two fixing plates. A movable plate with a guide sleeve is mounted on the guide rod, and the movable plate slides along the guide rod via the guide sleeve. Clamping components are fixed to the upper surfaces of the movable plate on both sides. A lead screw C is located between the lower middle parts of the left and right fixing plates. The bottom surface of the movable plate is fixedly connected to the lead screw nut seat on the lead screw C. The input end of the lead screw C is connected to the output end of a motor B located on the crossbeam in the middle of the support frame.

[0011] The automatic feeding and discharging mechanism of the bending machine includes an adjusting seat, a lower base, a side plate, and a turntable in each positioning component. The lower base is fixed to the upper surface of the left fixed plate by bolts. The adjusting seat has an adjusting elongated hole corresponding to the screw hole on the lower base. A side plate is fixed to the left end face of the lower base. Both sides of the upper left side of the side plate have through holes. A guide pin for connecting the adjusting seat passes through the through holes. The nut of the guide pin is located outside the side plate. The shaft section of the guide pin is slidably disposed with the through hole and the through hole on the outer side of the adjusting seat. A rotating shaft is vertically connected by a bearing on the upper right side of the adjusting seat. A turntable is fixed to the upper outside of the rotating shaft.

[0012] The automatic feeding and discharging mechanism of the bending machine includes a clamping assembly comprising a cylinder B, a support base, a clamping plate, and a base plate. The base plate of the clamping assembly is fixed to the support bar on the upper left side of the support frame. Vertical support bases extending upward are provided on both sides of the base plate. The clamping plate is located between the two support bases and is connected by a rotating shaft in the upper hole of the support base. The cylinder B is fixed on the upper left side of the clamping plate. The output end of the cylinder B passes through the clamping plate and a ball head is fixed on the output end. A clamping block is fixed on the lower right side of the clamping plate near the edge. The clamping opening between the clamping plate and the base plate corresponds to the brush plate A.

[0013] The automatic feeding and discharging mechanism of the bending machine has a rotating frame hinged to the rear end face of the left support frame via a hinge seat. A brush plate D is fixed on the rotating frame. A cylinder A is hinged to the support beam at the lower rear part of the left support frame. The output end of the cylinder A is hinged to the middle part of the rotating frame.

[0014] The automatic feeding and discharging mechanism of the bending machine includes a material blocking assembly on the brush plate A. The material blocking assembly includes a sliding rod, a lead screw A, a sliding plate, and a fixing block. An elongated hole is formed at the front of the brush plate A along its length. The sliding rod and the lead screw A are arranged sequentially from top to bottom at the lower part of the brush plate A, corresponding to the position of the elongated hole. The front and rear ends of the sliding rod and the lead screw A are fixed to the support frame by bearing seats. A drive motor is connected to the input end of the lead screw A. The bottom surface of the sliding plate is fixedly connected to the lead screw nut seat on the lead screw A. A through hole is formed at the lower part of the sliding plate. Guide sleeves are provided on both ends of the lower part of the sliding plate, which are concentric with the through hole. The sliding rod passes through the guide sleeve and the through hole. A "U"-shaped fixing block is fixed on the front side of the upper part of the sliding plate. The horizontal surface of the fixing block is set as an inward arc surface. Multiple vertical through holes are formed along the length of the arc surface. Rollers are rotatably arranged in the multiple through holes.

[0015] The automatic feeding and discharging mechanism of the bending machine includes a discharging mechanism comprising two "H"-shaped supports on both sides and a transverse beam fixed between the rear parts of the two "H"-shaped supports. A conveyor frame is fixed at the upper end of each of the two "H"-shaped supports. The conveyor frame includes supports on both sides and transverse supports fixed at intervals between the supports on both sides. Fixed plates are provided at both ends of the outer side of the supports on both sides and fixed plates are fixed by screws. The arc surface of the outer end of the fixed plate is located outside the support. I-beam wheels connected by a drive shaft B are provided between the fixed plates on the inner and outer sides of the support. A belt B is connected between the corresponding I-beam wheels at the front and rear ends. A drive shaft A is connected between the four I-beam wheels at the rear end. A reducer is connected to any end of the drive shaft A. The input end of the reducer is fixedly connected to the output end of the motor C.

[0016] The automatic feeding and discharging mechanism of the bending machine includes an auxiliary feeding mechanism at the rear of the discharging mechanism. Two sets of auxiliary feeding mechanisms are located on either side of the rear of the discharging mechanism. Fixed seats are provided at both the front and rear of each auxiliary feeding mechanism. Each set of auxiliary feeding mechanisms includes four square-arranged drive shafts C. Synchronous pulleys are fixed to both ends of each drive shaft C. Synchronous belts are connected to the outside of the synchronous pulleys on the same side of each of the four drive shafts C. The fixed seats are "n"-shaped. Brackets are fixed to the upper and lower parts of the opposite faces of the two fixed seats. The outer end of any drive shaft C located at the lower part is fixedly connected to the output end of the drive motor, and the middle part of this drive shaft C is rotatably mounted within the bracket. The other three drive shafts C are fixed by the brackets. Bearings are provided between the ends of these three drive shafts C and the synchronous pulleys.

[0017] The automatic feeding and discharging mechanism of the bending machine further includes a synchronous belt tensioning device set on a fixed seat. The device includes an extension seat, a mounting seat, a sliding plate, and a top shaft. The extension seats are set on the lower sides of both sides of any fixed seat. A bottom panel is fixed on the top of the extension seats. The mounting seat is connected to the rear of the sliding plate by long bolts and is fixed on the bottom panel. The sliding plate is fixed to the bottom panel by fixing bolts in the long holes on its surface. The front end of the sliding plate is set in a "U" shape. A top shaft is rotatably provided in the "U" shape and contacts the synchronous belt.

[0018] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0019] The automatic feeding and discharging mechanism of the bending machine described in this invention defines the position of the sheet metal on the brush plate assembly and brush plate A by setting up a clamping assembly, a positioning assembly, and a blocking assembly. Then, the two sets of clamping and conveying assemblies of the feeding assembly clamp and convey the sheet metal into the bending machine body for bending. The bent sheet metal is then conveyed to the discharging mechanism by the clamping and conveying assemblies, and finally conveyed to the next station by the auxiliary feeding mechanism. This invention has a reasonable structure, is easy to use, and effectively improves work efficiency and operational safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the conveyor frame on one side of the present invention.

[0022] Figure 3 This is a schematic diagram of the connection structure of the clamping assembly of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure of the clamping assembly and the positioning assembly of the present invention.

[0024] Figure 5 This is a schematic diagram of the connection structure of the discharge mechanism of the present invention.

[0025] Figure 6 This is a schematic diagram of the installation of belt B on the discharge mechanism of the present invention.

[0026] Figure 7 This is a schematic diagram of the installation of the skateboard of the present invention.

[0027] Figure 8 This is a schematic diagram of the feeding component of the present invention.

[0028] Figure 9 This is a schematic diagram of the material clamping and conveying assembly of the present invention.

[0029] Figure 10 This is a schematic diagram of the auxiliary feeding mechanism and the fixed base of the present invention.

[0030] Figure 11 This is a schematic diagram of the structure of the fixing base of the present invention.

[0031] Figure 12 This is a schematic diagram of the auxiliary feeding mechanism of the present invention.

[0032] Figure 13 This is a side view of the belt clip assembly of the present invention.

[0033] In the diagram: 1. Pulley A; 2. Slide rod; 3. Material stop assembly; 4. Elongated hole; 5. Brush plate A; 6. Guide rail; 7. Lead screw B; 8. Discharge mechanism; 9. Pulley B; 10. Motor A; 11. Auxiliary feeding mechanism; 12. Bending machine body; 13. Brush plate B; 14. Brush plate C; 15. Clamping assembly; 16. Motor B; 17. Brush plate D; 18. Positioning assembly; 19. Brush plate E; 20. Belt; 21. Cylinder A; 22. Support frame; 23. Guide rod; 24. Fixed plate; 25. Lead screw C; 26. Rotating frame; 27. Hinge seat; 28. Moving plate; 29. ​​Cylinder B; 30. Support seat; 31. Clamping plate; 32. Base plate; 33. Rotating shaft; 34. Turntable; 35. Adjusting seat; 36. Adjustment 37. Long hole; 38. Lower base; 39. Side plate; 40. Belt B; 41. Horizontal support; 42. Support; 43. Drive shaft A; 44. Reducer; 45. Motor C; 46. I-beam wheel; 47. Arc surface; 48. Fixing plate; 49. Screw; 50. Drive shaft B; 51. Fixing block; 52. Roller; 53. Slide plate; 54. Guide sleeve; 55. Lead screw A; 56. Clamping and conveying assembly; 57. Vertical plate; 58. Tilting clamp; 59. Mating plate; 60. Cylinder C; 61. Lower fixing plate; 62. Motor C; 63. Lower base plate; 64. Drive shaft C; 65. Fixing seat; 66. Synchronous belt; 67. Mounting seat; 68. Bottom panel; 69. Extension seat; 70. Bracket; 71. Sliding plate; 72. Long bolt; 73. Top shaft. Detailed Implementation

[0034] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0035] Combined with appendix Figure 1-13 The automatic feeding and discharging mechanism of the bending machine includes a conveying component located at the front of the bending machine body 12 and a discharging mechanism 8 located at the rear of the bending machine body 12. The conveying component includes support frames 22 spaced apart on the left and right sides, and a left brush plate group and a right brush plate A5 fixed on the support frames 22. The bending machine body 12 has a left-right structure and is supported by a base frame. A feeding component is provided between the two support frames 22 and in the base frame at the bottom of the bending machine body 12.

[0036] The feeding assembly includes pulley A1, belt 20, pulley B9, guide rail 6, and clamping conveyor assembly 55. Pulley A1 and pulley B9 are both supported by the lower bearing seats. Belt 20 is externally connected between pulley A1 and pulley B9. Pulley A1 is located at the front of the conveying assembly, and pulley B9 is located at the rear of the discharge mechanism 8. Pulley B9 is driven by motor A10. There are two guide rails, which are respectively set on the lower sides of belt 20 and fixed to the base plate on the ground. The clamping conveyor assembly 55 is slidably set on the guide rail 6.

[0037] The material clamping and conveying assembly 55 has two sets, each set including two identical sliding seats arranged opposite each other. The sliding seats consist of two left and right vertical plates 56, a lower base plate 62, a tilting clamp 57, and a cylinder C59. The two vertical plates 56 are fixed to the upper sides of the lower base plate 62. A lower fixing plate 60 is connected to the lower rear part of the vertical plates 56. The lower fixing plates 60 of the two sliding seats in any set are correspondingly arranged, and a lead screw B7 is installed between the two lower fixing plates 60 of the sliding seats. A motor C61 is fixed on the rear fixed plate 60 of the two sets of sliding seats, and its output end is fixedly connected to the lead screw B7. The front fixed plate 60 is fixedly connected to the lead screw nut seat on the lead screw B7. Multiple support rods are arranged vertically between the two upright plates 56. The upper support rod is horizontally inserted into the upper flange of the cylinder C59, and is inclined and fixedly connected to the cylinder C59. A mating plate 58 is fixed on one side between the upper parts of the two upright plates 56, and a flipping clamp 57 is hinged to the other side. The flipping clamp 57 is in the shape of "2". The upper part of the sliding seat is in contact with the upper surface of the mating plate 58. The lower front part is hinged to the upper part of the two vertical plates 56, and the lower rear part is hinged to the lifting end of the cylinder C59. The lifting ends of the cylinder C59 on any two sliding seats are arranged oppositely, and the flipping clamps 57 on the two sliding seats are arranged correspondingly. The lower base plate 62 is slidably mounted on the guide rail 6. The belt 20 passes between the lower base plate 62 and the fixed plate 60 of each sliding seat. A belt clamp assembly is provided on the upper rear part of the lower base plate 62 of any two sliding seats.

[0038] The automatic feeding and discharging mechanism of the bending machine includes a belt clamp assembly comprising a cylinder B29, a support base 30, a clamping plate 31, and a base plate 32. The base plate 32 of the belt clamp assembly is fixed to the upper rear part of the lower base plate 62. Vertical support bases 30 extending upward are provided on both sides of the upper part of the base plate 32. The clamping plate 31 is located between the two support bases 30 and is connected by a rotating shaft in the upper end hole of the support base 30. The cylinder B29 is fixed to the upper left side of the clamping plate 31. The output end of the cylinder B29 passes through the clamping plate 31 and a ball head is fixed on the output end. A clamping block is fixed on the lower right side of the clamping plate 31 near the edge. The clamping opening between the clamping plate 31 and the base plate 32 is set at the upper and lower parts of the belt 20.

[0039] The automatic feeding and discharging mechanism of the bending machine includes a left-side brush plate assembly comprising brush plates E19, D17, and C14 fixed front and rear on a support frame 22. Clamping components 15 and positioning components 18 are provided between brush plates E19 and D17, and between brush plates D17 and C14. Fixing plates 24 are fixed to the inner surfaces of the support bars on the upper ends of both sides of the support frame 22. The positioning components 18 are respectively fixed to both sides of the upper surface of the left-side fixing plate 24. Guide rods 23 are fixed on both sides, and a movable plate 28 with a guide sleeve is provided on the guide rods 23. The movable plate 28 slides on the guide rods 23 through the guide sleeve. The clamping assembly 15 is fixed on both sides of the upper end face of the movable plate 28. A lead screw C25 is provided between the lower part of the middle of the left and right fixed plates 24. The bottom surface of the middle part of the movable plate 28 is fixedly connected to the lead screw nut seat on the lead screw C25. The input end of the lead screw C25 is connected to the output end of the motor B16 provided on the crossbeam in the middle of the support frame 22.

[0040] The automatic feeding and discharging mechanism of the bending machine includes an adjusting seat 35, a lower base 37, a side plate 38, and a turntable 34 in each positioning component 18. The lower base 37 is fixed to the upper surface of the left fixed plate 24 by bolts. The adjusting seat 35 is provided with an adjusting elongated hole 36 corresponding to the screw hole on the lower base 37. The side plate 38 is fixed on the left end face of the lower base 37. Both sides of the upper left side of the side plate 38 are provided with through holes. A guide pin shaft connecting the adjusting seat 35 passes through the through holes. The nut of the guide pin shaft is set outside the side plate 38. The shaft section of the guide pin shaft is slidably arranged with the through holes and the through holes on the outer side of the adjusting seat 35. A rotating shaft 33 is provided on the upper right side of the adjusting seat 35 near the edge, and is vertically connected by a bearing. The turntable 34 is fixed outside the upper end of the rotating shaft 33.

[0041] The automatic feeding and discharging mechanism of the bending machine includes a clamping assembly 15 comprising a cylinder B29, a support base 30, a clamping plate 31, and a base plate 32. The base plate 32 of the clamping assembly 15 is fixed to the support bar on the upper left side of the support frame 22. Vertical support bases 30 extending upward are provided on both sides of the upper part of the base plate 32. The clamping plate 31 is located between the two support bases 30 and is connected by a rotating shaft in the upper hole of the support base 30. The cylinder B29 is fixed on the upper left side of the clamping plate 31. The output end of the cylinder B29 passes through the clamping plate 31 and a ball head is fixed on the output end. A clamping block is fixed on the lower right side of the clamping plate 31 near the edge. The clamping opening between the clamping plate 31 and the base plate 32 corresponds to the brush plate A5.

[0042] The automatic feeding and discharging mechanism of the bending machine has a rotating frame 26 hinged to the rear end face of the left support frame 22 via a hinge seat 27. A brush plate D17 is fixed on the rotating frame 26. A cylinder A21 is hinged to the support beam at the lower rear part of the left support frame 22. The output end of the cylinder A21 is hinged to the middle part of the rotating frame 26.

[0043] The automatic feeding and discharging mechanism of the bending machine has a material blocking assembly 3 on the brush plate A5. The material blocking assembly 3 includes a slide rod 2, a lead screw A54, a slide plate 52 and a fixing block 50. An elongated hole 4 is opened at the front of the brush plate A5 along its length. The slide rod 2 and the lead screw A54 are arranged from top to bottom at the lower part of the brush plate A5 and corresponding to the position of the elongated hole 4. The front and rear ends of the slide rod 2 and the lead screw A54 are respectively fixed on the support frame 22 through bearing seats. A drive motor is connected to the input end of the lead screw A54. The bottom surface of the slide plate 52 is fixedly connected to the lead screw nut seat on the lead screw A54. A through hole is provided at the bottom of the slide plate 52. Guide sleeves 53 are provided on both ends of the bottom of the slide plate 52, which are concentric with the through hole. The slide rod 2 passes through the guide sleeves 53 and the through hole. A "U"-shaped fixing block 50 is fixed on the front side of the upper part of the slide plate 52. The horizontal surface of the fixing block 50 is set as an inward arc surface. Multiple vertical through holes are provided along the length of the arc surface. Rollers 51 are rotatably arranged in the multiple through holes.

[0044] The automatic feeding and discharging mechanism of the bending machine includes a discharging mechanism 8 comprising two "H"-shaped supports on both sides and a transverse beam fixed between the rear parts of the two "H"-shaped supports. A conveyor frame is fixed at the upper end of each of the two "H"-shaped supports. The conveyor frame includes supports 41 on both sides and transverse supports 40 fixed at intervals between the supports 41 on both sides. Fixing plates 47 are fixed at both ends of the outer side of the supports 41 by screws 48. The arc surface 46 at the outer end of the fixing plate 47 is located outside the support 41. I-beam wheels 45 connected by a drive shaft B49 are provided between the fixing plates 47 on the inner and outer sides of the support 41. A belt B39 is connected between the corresponding I-beam wheels 45 at the front and rear ends. A drive shaft A42 is connected between the four I-beam wheels 45 at the rear end. A reducer 43 is connected to any end of the drive shaft A42. The input end of the reducer 43 is fixedly connected to the output end of the motor C44.

[0045] The automatic feeding and discharging mechanism of the bending machine includes an auxiliary feeding mechanism 11 at the rear of the discharging mechanism 8. Two sets of the auxiliary feeding mechanism 11 are located on either side of the rear of the discharging mechanism 8.

[0046] Fixed seats 64 are provided at the front and rear of the auxiliary feeding mechanism 11. Each set of auxiliary feeding mechanisms 11 includes four drive shafts C63 arranged in a square. Synchronous pulleys are fixed at both ends of the drive shafts C63. Synchronous belts 65 are connected to the outside of the synchronous pulleys on the same side of the four drive shafts C63. The fixed seats 64 are in the shape of an "n". Brackets 69 are fixed at the upper and lower parts of the opposite sides of the two fixed seats 64. The outer end of any drive shaft C63 located at the lower part is fixedly connected to the output end of the drive motor. The middle part of this drive shaft C63 is rotatably set in the bracket 69. The other three drive shafts C63 are fixed by the brackets 69. Bearings are provided between the two ends of these three drive shafts C63 and the synchronous pulleys.

[0047] The automatic feeding and discharging mechanism of the bending machine also includes a synchronous belt tensioning device set on the fixed seat 64, which includes an extension seat 68, a mounting seat 66, a sliding plate 70 and a top shaft 72. The extension seats 68 are all set on the lower part of both sides of any fixed seat 64. A bottom panel 67 is fixed on the top of the extension seat 68. The mounting seat 66 is connected to the rear of the sliding plate 70 by long bolts 71 and is fixed on the bottom panel 67. The sliding plate 70 is fixed on the bottom panel 67 by fixing bolts in the long holes on its surface. The front end of the sliding plate 70 is set in a "U" shape. The top shaft 72 is rotatably provided in the "U" shape and contacts the synchronous belt 65.

[0048] In implementing the automatic feeding and discharging mechanism of the bending machine described in this invention, during use, a robotic arm on one side of the brush plate A5 places the sheet metal onto the brush plate A5, as shown in the attached diagram. Figure 1 As shown, the drive motor connected to the input end of the lead screw A54 is started, which drives the slide plate 52 to move along the length direction of the lead screw A54 and the slide rod 2. The roller 51 on the upper fixed block 50 of the slide plate 52 contacts the rear end of the plate and limits the rear end of the plate.

[0049] As attached Figure 3 and 4 As shown, motor B16 drives screw C25 to move plate 28 and clamping assembly 15 fixed on both sides of the upper end face of moving plate 28 towards brush plate A5. At this time, the clamping port of clamping assembly 15 is open. When the side of the plate enters the clamping port, the lifting end of cylinder B29 pushes out, so that the lifting end contacts the bottom plate 32, thereby closing the clamping port between clamping plate 31 and bottom plate 32, clamping the plate. Then, motor B16 drives screw C25 in the opposite direction to move plate 28 and clamping assembly 15 back to the original position. After the side of the plate contacts turntable 34, the lifting end of cylinder B29 of clamping assembly 15 retracts, so that the lifting end separates from bottom plate 32, the clamping port opens, and the extension distance of turntable 34 is adjusted by adjusting elongated hole 36 on adjusting seat 35, so that the plate is pulled through clamping assembly 15 to the top of clamping conveying assembly 55 of feeding assembly.

[0050] As attached Figure 8-9 As shown, the front and rear ends of the sheet metal are positioned between a set of clamping and conveying assemblies 55 located at the front. The distance between the two sliding seats is adjustable. The principle is as follows: the sliding seat located at the rear of the clamping and conveying assembly 55 is fixed. The motor C61 drives the lead screw B7, which moves the front sliding seat on the lead screw B7, adjusting the distance between the two sliding seats. When the front and rear ends of the sheet metal are positioned between the mating plate 58 and the flipping clamp 57 at the upper end of the two sliding seats, the cylinder C59 on the two sliding seats is activated. The lifting end of the cylinder C59 pushes the lower part of the flipping clamp 57, causing the upper opening of the flipping clamp 57 to press against the sheet metal, thus positioning the front and rear ends of the sheet metal. The operating principle of the set of clamping and conveying assemblies 55 at the rear is the same as the above principle.

[0051] After clamping the boards, as shown in the attached Figure 13 As shown, the output end of cylinder B29 of the belt clamp assembly is pushed out onto the base plate 32, so that the clamping jaw between the clamping plate 31 and the base plate 32 is clamped onto the belt 20. Its clamping principle is the same as that of the clamping assembly 15. The motor A10 drives the pulley B9 to rotate, and the belt 20 drives the two sets of clamping and conveying assemblies 55 to move on the guide rail 6 towards the bending machine body 12. When the material is delivered to the inlet of the bending machine body 12, the lifting end of cylinder C59 on the two sliding seats at the front retracts, the upper opening of the flip clamp 57 opens, and flips to be horizontal with the sliding seat. The sheet metal enters the bending machine body 12 for bending.

[0052] The bent sheet material is fed to the auxiliary feeding mechanism 11 via the discharge mechanism 8, and then proceeds to the next process; as shown in the attached document. Figure 5-6 As shown, the working principle of its discharge mechanism 8 is as follows: the motor C44 drives the reducer 43 to drive the transmission shaft A42 to rotate, and the belt B39 between the I-beam wheels 45 at both ends of the conveyor frame transports the bent plate material to the auxiliary feeding mechanism 11.

[0053] like Figure 10-13 As shown, the working principle of the auxiliary feeding mechanism 11 is as follows: the drive motor drives the outer end of any one of the transmission shafts C63 at the bottom of the two sets of auxiliary feeding mechanisms 11, and drives the plate to the next process through the synchronous belt 65 outside the synchronous wheel on the same side. The synchronous belt 65 is tightened by the synchronous belt tensioning device. The sliding plate 70 adjusts the extension length on the bottom panel 67 through the fixing bolt in the long hole on its upper part, so that the top shaft 72 set at the front end of the sliding plate 70 presses against the synchronous belt 65.

[0054] As attached Figure 2 As shown, when the main body 12 of the bending machine needs maintenance, the telescopic end of the cylinder A21 retracts, causing the brush plate B13 to rotate downwards, exposing the maintenance space for easy maintenance.

[0055] The parts of this invention not described in detail are prior art.

[0056] The embodiments selected herein for the purpose of disclosing the inventive objectives are currently considered suitable; however, it should be understood that the invention is intended to include all variations and modifications of the embodiments that fall within the scope of this concept and invention.

Claims

1. An automatic feeding and discharging mechanism for a bending machine, comprising a conveying assembly disposed at the front of the bending machine body and a discharging mechanism disposed at the rear of the bending machine body, characterized in that: The conveying assembly includes support frames spaced apart on the left and right sides, and a left brush plate assembly and a right brush plate A fixed on the support frames. The main body of the bending machine has a left-right structure, supported by a base frame. A feeding assembly is provided between the two support frames and within the base frame at the bottom of the bending machine main body. The left brush plate assembly includes brush plates E, D, and C fixed front and rear on the support frames. Clamping and positioning assemblies are provided between brush plates E and D, and between brush plates D and C. Fixing plates are fixed on the inner surfaces of the support bars at the upper ends of the left and right sides of the support frames. Positioning assemblies are fixed on both sides of the upper surface of the left fixing plate. Guide rods are fixed on both sides between the two fixing plates. A movable plate with a guide sleeve is provided on the guide rod. The movable plate slides on the guide rod through the guide sleeve. Clamping assemblies are fixed on both sides of the upper surface of the movable plate. A lead screw C is provided between the lower part of the middle of the left and right fixed plates. The bottom surface of the middle of the moving plate is fixedly connected to the lead screw nut seat on the lead screw C. The input end of the lead screw C is connected to the output end of the motor B set on the crossbeam in the middle of the support frame. Each positioning component includes an adjusting seat, a lower base, a side plate and a turntable. The lower base is fixed to the upper surface of the left fixed plate by bolts. The adjusting seat has an adjusting elongated hole corresponding to the screw hole on the lower base. A side plate is fixed on the left end face of the lower base. Both sides of the upper left side of the side plate have through holes. A guide pin shaft for connecting the adjusting seat passes through the through holes. The nut of the guide pin shaft is set outside the side plate. The shaft section of the guide pin shaft is slidably set with the through hole and the through hole on the outer side of the adjusting seat. A rotating shaft is provided on the upper right side of the adjusting seat and near the edge through a bearing. A turntable is fixed outside the upper end of the rotating shaft. The feeding assembly includes pulley A, belt, pulley B, guide rail, and clamping conveyor assembly. Both pulley A and pulley B are supported by the lower bearing seats. A belt is externally connected between pulley A and pulley B. Pulley A is located at the front of the conveying assembly, and pulley B is located at the rear of the discharge mechanism. Pulley B is driven by motor A. Two guide rails are provided, respectively located on both sides of the lower part of the belt and fixed to the base plate on the ground. The clamping conveyor assembly is slidably mounted on the guide rail. The material clamping and conveying assembly has two sets, each set including two identical sliding seats arranged opposite each other. Each sliding seat consists of two vertical plates (left and right), a lower base plate, a tilting clamp, and a cylinder C. The two vertical plates are fixed to the upper sides of the lower base plate. A lower fixing plate is connected to the lower rear of the vertical plates. The lower fixing plates of the two sliding seats in each set are correspondingly arranged, and a lead screw B is installed between the two lower fixing plates. Motor C is fixed on the rear fixed plate of the two sets of sliding seats, and its output end is fixedly connected to lead screw B. The front fixed plate is fixedly connected to the lead screw nut seat on lead screw B. Multiple support rods are arranged vertically between the two vertical plates. The upper support rod is horizontally inserted into the upper flange of cylinder C, inclined and fixedly connected to cylinder C. A mating plate is fixed on one side between the upper parts of the two vertical plates, and a flipping clamp is hinged on the other side. The flipping clamp is in the shape of "2". The upper opening contacts the upper end face of the mating plate. The lower front end is hinged to the upper part of the two vertical plates, and the lower rear end is hinged to the lifting end of cylinder C. The lifting ends of cylinder C on the two sliding seats in any set are arranged oppositely, and the flipping clamps on the two sliding seats are arranged correspondingly. The lower base plate is slidably mounted on the guide rail. The belt passes between the lower base plate and the fixed plate of each sliding seat. A belt clamp assembly is provided on the upper rear part of the lower base plate of any one of the two sets of sliding seats. The belt clamp assembly includes a cylinder B, a support base, a clamping plate, and a base plate. The base plate of the belt clamp assembly is fixed to the upper rear part of the lower base plate. Vertical support bases extending upward are provided on both sides of the upper part of the base plate. The clamping plate is located between the two support bases and is connected by a rotating shaft in the upper hole of the support base. The cylinder B is fixed to the upper left side of the clamping plate. The output end of the cylinder B passes through the clamping plate and a ball head is fixed on the output end. A clamping block is fixed on the lower right side of the clamping plate near the edge. The clamping opening between the clamping plate and the base plate is set at the upper and lower parts of the belt. The clamping assembly includes cylinder B, a support base, a clamping plate, and a base plate. The base plate of the clamping assembly is fixed to the support bar on the upper left side of the support frame. Vertical support bases extending upward are provided on both sides of the base plate. The clamping plate is located between the two support bases and is connected by a rotating shaft in the upper hole of the support base. Cylinder B is fixed on the upper left side of the clamping plate. The output end of cylinder B passes through the clamping plate and a ball head is fixed on the output end. A clamping block is fixed on the lower right side of the clamping plate near the edge. The clamping opening between the clamping plate and the base plate corresponds to the brush plate A. A rotating frame is hinged to the rear end face of the left support frame via a hinged seat. A brush plate D is fixed on the rotating frame. Cylinder A is hinged to the support beam at the lower rear part of the left support frame. The output end of cylinder A is hinged to the middle part of the rotating frame.

2. The automatic feeding and discharging mechanism for the bending machine according to claim 1, characterized in that: A baffle assembly is provided on the brush plate A. The baffle assembly includes a slide rod, a lead screw A, a slide plate, and a fixing block. An elongated hole is opened at the front of the brush plate A along its length. The slide rod and the lead screw A are arranged sequentially from top to bottom at the lower part of the brush plate A, corresponding to the position of the elongated hole. The front and rear ends of the slide rod and the lead screw A are respectively fixed to the support frame through bearing seats. A drive motor is connected to the input end of the lead screw A. The bottom surface of the slide plate is fixedly connected to the lead screw nut seat on the lead screw A. A through hole is opened at the lower part of the slide plate. Guide sleeves are provided on both ends of the lower part of the slide plate, which are concentrically arranged with the through hole. The slide rod passes through the guide sleeve and the through hole. A "U"-shaped fixing block is fixed on the front side of the upper part of the slide plate. The transverse surface of the fixing block is set as an inward arc surface. Multiple vertical through holes are opened along the length of the arc surface. Rollers are rotatably arranged in the multiple through holes.

3. The automatic feeding and discharging mechanism for the bending machine according to claim 1, characterized in that: The discharge mechanism includes two "H"-shaped supports on both sides and a transverse beam fixed between the rear parts of the two "H"-shaped supports. A conveyor frame is fixed at the upper end of each of the two "H"-shaped supports. The conveyor frame includes supports on both sides and transverse supports fixed at intervals between the supports on both sides. Fixed plates are provided at both ends of the outer side of the supports on both sides and fixed plates fixed by screws. The arc surface of the outer end of the fixed plate is located outside the support. I-beam pulleys connected by a drive shaft B are provided between the fixed plates on the inner and outer sides of the support. Belts B are connected between the corresponding I-beam pulleys at the front and rear ends. A drive shaft A is connected between the four I-beam pulleys at the rear end. A reducer is connected to any end of the drive shaft A. The input end of the reducer is fixedly connected to the output end of the motor C.

4. The automatic feeding and discharging mechanism for the bending machine according to claim 1, characterized in that: An auxiliary feeding mechanism is also provided at the rear of the discharge mechanism. There are two sets of auxiliary feeding mechanisms, located on both sides of the rear of the discharge mechanism. Fixed seats are provided at the front and rear of the auxiliary feeding mechanism. Each set of auxiliary feeding mechanisms includes four drive shafts C arranged in a square. Synchronous pulleys are fixed at both ends of the drive shafts C. Synchronous belts are connected to the outside of the synchronous pulleys on the same side of the four drive shafts C. The fixed seats are "n" shaped. Brackets are fixed at the upper and lower parts of the opposite sides of the two fixed seats. The outer end of any drive shaft C located at the lower part is fixedly connected to the output end of the drive motor. The middle part of this drive shaft C is rotatably set in the bracket. The other three drive shafts C are fixed by the brackets. Bearings are provided between the ends of these three drive shafts C and the synchronous pulleys.

5. The automatic feeding and discharging mechanism for a bending machine according to claim 1, characterized in that: It also includes a timing belt tensioning device installed on a fixed seat, which includes an extension seat, a mounting seat, a sliding plate, and a top shaft. The extension seats are installed on the lower sides of either fixed seat. A bottom panel is fixed on the top of the extension seat. The mounting seat is connected to the rear of the sliding plate by long bolts and is fixed on the bottom panel. The sliding plate is fixed to the bottom panel by fixing bolts in the long holes on its surface. The front end of the sliding plate is U-shaped, and a top shaft is rotatably installed in the U-shaped opening. The top shaft is in contact with the timing belt.

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