Multi-angle hot bending machine for plate

Abstract

The present application relates to the technical fields of plate hot bending, and specifically relates to a multi-angle plate hot bending machine, which comprises a rack, and further comprises: a lifting platform connected with the rack; a deflection hot pressing structure connected with the rack, the deflection hot pressing structure comprising a plug-in rack fixedly connected with the rack, the plug-in rack being connected with a first connecting part, the first connecting part being movably connected with a second connecting part, the second connecting part being connected with a roller, the roller being provided with clamping parts at both ends, the rack being connected with a rotating rolling mechanism, the plug-in rack being fixedly provided with an electromagnetic heating coil; a transverse conveying structure connected with the rack; and a rotating conveying structure connected with the rack. The present application automatically installs and heats rollers with different diameters, thereby controlling the bending radius of the plate, and controls the bending angle of the plate by the way of rotating the rolling mechanism to roll the plate. The present application is convenient for bending the plate with different bending radii and different angles for multiple times, and improves the convenience of bending the plate for multiple times.

Description

Technical Field

[0001] This invention relates to the field of sheet metal hot bending technology, specifically a sheet metal multi-angle hot bending machine. Background Technology

[0002] Sheet bending machines are mainly used for bending acrylic sheets and plastic sheets. Plastic sheets, such as acrylic sheets, are sometimes directly injection molded into products, and sometimes processed later. Some acrylic sheet products only require bending to complete the forming process. Acrylic sheets are generally flat when they leave the factory; therefore, bending is necessary during the finished product manufacturing process. Because acrylic has a relatively low melting point, it is usually softened by heating before bending.

[0003] Existing bending equipment typically uses hot bending machines, but these machines have certain drawbacks. Specifically, when performing multiple bends at multiple angles, they cannot meet the needs of different bending radii. That is, when multiple curved surfaces with different radii need to be bent from a single sheet, a single hot bending machine can only perform bending operations on curved surfaces with the same radius. This often requires personnel to install and disassemble the sheet several times, which is very inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-angle hot bending machine for sheet metal to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A multi-angle hot bending machine for sheet metal includes a frame and further includes:

[0007] A lifting platform connected to the frame is used to adjust the height of the sheet metal.

[0008] A deflection hot pressing structure connected to a frame includes a bracket fixedly connected to the frame, a first connecting part installed on the bracket, a first active telescopic rod adapted to the first connecting part installed on the frame, a second connecting part movably connected to the first connecting part, a roller fixedly connected to the second connecting part, and a snap-fit ​​part installed at both ends of the roller, one set of the snap-fit ​​parts being movably connected to the bracket, a rotating rolling mechanism connected to the frame, and an electromagnetic heating coil adapted to the roller fixedly installed on the bracket, the electromagnetic heating coil heating the roller based on electromagnetic induction.

[0009] A transverse conveying structure connected to a frame, the transverse conveying structure being movably connected to a roller, the transverse conveying structure being movably connected to another set of the locking parts, the transverse conveying structure being used to adjust the position of the roller;

[0010] A rotating conveyor structure connected to a frame, the rotating conveyor structure being used to support and adjust the position of the rollers.

[0011] As a further improvement of the present invention: the first connecting part includes multiple sets of first housings fixedly connected to the insert bracket. A first semicircular block adapted to the second connecting part is rotatably installed inside the first housing. The first semicircular block is rotatably connected to the first housing through a first track. A slot frame is fixedly connected to the first track. A first elastic telescopic rod is hinged to the slot frame and hinged to the first housing. A slot is opened on the slot frame. A linkage frame is slidably connected to the slot of the slot frame. A guide frame fixedly installed inside the insert bracket is slidably connected to the linkage frame through a slide rod. A spring is installed between the linkage frame and the guide frame. The slide rod is adapted to the first active telescopic rod.

[0012] As a further improvement of the present invention: the second connecting part includes a second housing fixedly connected to the roller, the second housing being movably connected to the first semicircular block, a second semicircular block rotatably installed inside the second housing and movably connected to the first housing, the second semicircular block being rotatably connected to the second housing via a second track, a first hinge plate being fixedly connected to the second track, and a second elastic telescopic rod hinged to the first hinge plate and hinged to the second housing.

[0013] As a further improvement of the present invention: the snap-fit ​​part includes multiple sets of clamping pieces that are fixedly connected to the inner wall of the roller.

[0014] As a further improvement of the present invention: the transverse conveying structure includes a first motor fixedly connected to the frame, a first screw fixedly connected to the output shaft of the first motor, a hanger threadedly connected to the first screw, a track fixedly connected to the frame slidably connected to the hanger, multiple sets of driven telescopic frames fixedly connected to the hanger, a pressing rod adapted to the roller fixedly connected to the moving end of the driven telescopic frame, the pressing rod intermittently cooperating with the clamping plate, a second motor fixedly connected to the hanger, a second screw fixedly connected to the output shaft of the second motor, a hinge frame threadedly connected to the second screw, and a second hinge plate hinged to the hinge frame and hinged to the driven telescopic frame.

[0015] As a further improvement of the present invention: the rotating conveying structure includes a third motor fixedly connected to the frame, the output shaft of the third motor is fixedly connected to a tripod, the tripod is movably connected to multiple sets of cylindrical frames, and multiple sets of inserts adapted to the clamping plates are installed on the cylindrical frames.

[0016] As a further improvement of the present invention: the rotating rolling mechanism includes a mounting frame fixedly connected to the frame, a hollow frame rotatably mounted on the mounting frame, multiple sets of teeth fixedly mounted on the circumferential surface of the hollow frame, a fourth motor fixedly connected to the mounting frame, a first gear meshing with the teeth fixedly connected to the output shaft of the fourth motor, an extension frame slidably connected to the hollow frame, a fifth motor fixedly mounted on the extension frame, a second gear fixedly connected to the output shaft of the fifth motor, a third gear meshing with the second gear, a pressure roller coaxially connected to the third gear, the pressure roller rotatably connected to the extension frame, and a second active telescopic rod installed between the extension frame and the hollow frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The sheet material to be bent is placed on a lifting platform. The platform raises the material, causing it to press against the rollers. Then, under the heating of the rollers by an electromagnetic heating coil, the rollers heat up, softening the material. Under the rotating rolling mechanism, the material bends against the outer wall of the rollers. During this process, the rotating rolling mechanism controls the bending angle of the material. Afterward, the electromagnetic heating coil stops heating the material, and the first active telescopic rod drives the first connecting part to release the second connecting part. The transverse conveyor structure moves the rollers towards the rotating conveyor structure, causing the second connecting part to disengage from the first connecting part, thus pulling the rollers into the rotating conveyor structure. Personnel adjust the position of the material on the lifting platform, and then... The moving conveyor structure performs a rotational repositioning operation, thereby rotating another set of rollers with different diameters towards the transverse conveyor structure. The transverse conveyor structure transports the rollers to the first connecting part. During this process, the second connecting part engages with the first connecting part, and the engaging part is connected to the insert frame. The lifting platform adjusts the height of the sheet material, and then the deflection hot pressing structure is used to perform a second hot bending of the sheet material. This invention automatically installs and heats rollers of different diameters, thereby controlling the curvature radius of the sheet material. Furthermore, the bending angle of the sheet material is controlled by rotating the rolling mechanism to roll the sheet material. This invention facilitates multiple bending operations of the sheet material with different curvature radii and angles, improving the convenience of multiple bending operations. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the interlocking structure of the insert, the first connecting part, the second connecting part, and the roller of the present invention;

[0021] Figure 3 This is a magnified view of a portion of point A;

[0022] Figure 4This is a three-dimensional structural diagram of the interlocking of the insert, the first connecting part, and the second connecting part of the present invention;

[0023] Figure 5 This is a three-dimensional structural diagram of the rotary rolling mechanism of the present invention;

[0024] Figure 6 This is a three-dimensional structural schematic diagram of the rotary rolling mechanism of the present invention from another perspective;

[0025] Figure 7 This is a schematic diagram showing the partial structure of the first connecting part of the present invention and its cooperation with the second connecting part;

[0026] Figure 8 This is a three-dimensional structural diagram of the transverse conveying structure of the present invention;

[0027] Figure 9 This is a three-dimensional structural diagram of the insert of the present invention.

[0028] In the diagram: 1. Frame; 2. Lifting platform; 3. Deflection hot pressing structure; 5. Insert frame; 6. First connecting part; 7. First active telescopic rod; 8. Second connecting part; 9. Roller; 10. Snap-fit ​​part; 11. Rotary rolling mechanism; 12. Electromagnetic heating coil; 13. Transverse conveying structure; 14. Rotary conveying structure; 15. First housing; 16. First semicircular block; 17. First track bar; 18. Slot frame; 19. First elastic telescopic rod; 20. Linkage frame; 21. Slide rod; 22. Guide frame; 23. Second housing; 24. Second semicircular block; 25. Second track; 26. First hinge plate; 27. Second elastic telescopic rod; 28. Clamping plate; 29. ​​First motor; 30. First screw; 31. Hanger; 32. Track; 33. Driven telescopic frame; 34. Pressing rod; 35. Second motor; 36. Second screw; 37. Hinge frame; 38. Second hinge plate; 39. Third motor; 40. Triangular frame; 41. Cylindrical frame; 42. Insert plate; 43. Mounting frame; 44. Hollow frame; 45. Gear; 46. Fourth motor; 47. First gear; 48. Extension frame; 49. Fifth motor; 50. Second gear; 51. Third gear; 52. Pressure roller; 53. Second active telescopic rod. Implementation

[0029] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0030] Example 1, see Figures 1-9 A multi-angle hot bending machine for sheet metal includes a frame 1, a control console mounted on the frame 1, and further includes:

[0031] The lifting platform 2 is connected to the frame 1. The lifting platform 2 is used to adjust the height of the plate. The lifting platform 2 includes a base connected to the frame 1. A linear drive mechanism is installed in the base. The linear drive mechanism can be a linear motor or a hydraulic cylinder. The linear drive mechanism is fixedly connected to a platform for supporting the plate. The platform is slidably connected to the base.

[0032] A deflection hot pressing structure 3 connected to the frame 1 includes a bracket 5 fixedly connected to the frame 1. A first connecting part 6 is installed on the bracket 5. A first active telescopic rod 7 adapted to the first connecting part 6 is installed on the frame 1. A second connecting part 8 is movably connected to the first connecting part 6. A roller 9 is fixedly connected to the second connecting part 8. Both ends of the roller 9 are equipped with snap-fit ​​parts 10. One set of snap-fit ​​parts 10 is movably connected to the bracket 5. A rotating rolling mechanism 11 is connected to the frame 1. An electromagnetic heating coil 12 adapted to the roller 9 is fixedly installed on the bracket 5. The electromagnetic heating coil 12 heats the roller 9 based on electromagnetic induction. An infrared temperature probe for measuring the temperature of the roller 9 is installed on the frame 1. The infrared temperature probe collects the heat radiation emitted by the roller 9 and converts the collected heat radiation into an electrical signal. The control console calculates and processes the received electrical signal and then displays the temperature of the roller 9, thereby completing the temperature measurement of the roller 9.

[0033] A transverse conveying structure 13 is connected to the frame 1. The transverse conveying structure 13 is movably connected to the roller 9. The transverse conveying structure 13 is movably connected to another set of the locking parts 10. The transverse conveying structure 13 is used to adjust the position of the roller 9.

[0034] A rotating conveying structure 14 connected to the frame 1 is used to support the roller 9 and adjust the position of the roller 9;

[0035] A cooling fan is fixedly connected to the frame 1, with the air outlet of the cooling fan facing the insert 5.

[0036] The sheet material to be bent is placed on the lifting platform 2. The lifting platform 2 lifts the sheet material, causing it to press against the roller 9. Then, under the heating of the roller 9 by the electromagnetic heating coil 12, the roller 9 heats up, softening the sheet material. Under the rotation and rolling of the rotating rolling mechanism 11, the sheet material is bent against the outer wall of the roller 9. During this process, the rotating rolling mechanism 11 controls the bending angle of the sheet material. Then, the electromagnetic heating coil 12 stops heating the sheet material, and the cooling fan blows air to cool the sheet material. The first active telescopic rod 7 drives the first connecting part 6 to release the second connecting part 8. The transverse conveying structure 13 moves the roller 9 towards the rotating conveying structure 14. The roller 9 pulls the second connecting part 8 away from the first connecting part 6, thereby pulling the roller 9 into the rotating conveying structure 14. The sheet material is then adjusted by personnel. The plate is positioned on the lifting platform 2, and then the rotating conveyor structure 14 performs a rotation and repositioning operation, thereby rotating another set of rollers 9 with different diameters toward the transverse conveyor structure 13. The transverse conveyor structure 13 conveys the rollers 9 to the first connecting part 6. During this process, the second connecting part 8 engages with the first connecting part 6, and the engaging part 10 is connected to the insert 5. The lifting platform 2 adjusts the height of the plate, and then the deflection hot pressing structure 3 is used to perform a second hot bending of the plate. This invention automatically installs and heats rollers 9 with different diameters, thereby controlling the curvature radius of the plate. The bending angle of the plate is controlled by rotating the rolling mechanism 11 to roll the plate. This invention facilitates multiple bending operations of the plate with different curvature radii and different angles, improving the convenience of multiple bending operations of the plate.

[0037] In one embodiment, the first connecting part 6 includes multiple sets of first housings 15 fixedly connected to the insert 5. A first semi-circular block 16 adapted to the second connecting part 8 is rotatably installed inside the first housing 15. The first semi-circular block 16 is rotatably connected to the first housing 15 via a first track 17. The first track 17 is slidably connected to the first housing 15. A slot frame 18 is fixedly connected to the first track 17. A first elastic telescopic rod 19 is hinged to the slot frame 18 and is hinged to the first housing 15. The first elastic telescopic rod 19 has elastic telescopic properties. A slot is provided on the slot frame 18. A linkage frame 20 is slidably connected to the slot of the slot frame 18. The linkage frame 20 is slidably connected to a guide frame 22 fixedly installed inside the insert 5 via a slide rod 21. A spring is installed between the linkage frame 20 and the guide frame 22. The slide rod 21 is adapted to the first active telescopic rod 7. The first elastic telescopic rod 19 drives the slot frame 18 to rotate. The slot frame 18 drives the first semicircular block 16 to rotate through the first track bar 17, so that the first semicircular block 16 rotates into the second connecting part 8, thereby connecting the first connecting part 6 and the second connecting part 8. When the first active telescopic rod 7 pushes the slide bar 21, the slide bar 21 drives the linkage frame 20 to move. The linkage frame 20 drives the slot frame 18 to rotate. The slot frame 18 drives the first semicircular block 16 to rotate into the first housing 15 through the first track bar 17, thereby releasing the limiting connection between the first connecting part 6 and the second connecting part 8.

[0038] In one embodiment, the second connecting part 8 includes a second housing 23 fixedly connected to the roller 9. The second housing 23 is movably connected to the first semicircular block 16. A second semicircular block 24 rotatably connected to the first housing 15 is rotatably installed inside the second housing 23. The first semicircular block 16 is movably connected to the second semicircular block 24. The second semicircular block 24 is rotatably connected to the second housing 23 via a second track 25. The second track 25 is slidably connected to the second housing 23. A first hinge plate 26 is fixedly connected to the second track 25. A second elastic telescopic rod 27 is hinged to the first hinge plate 26 and hinged to the second housing 23. As the roller 9 moves the second housing 23 toward the first housing 15, the second housing 23 presses against the first semicircular block 16, and the first housing 15 presses against the second semicircular block 24, thus pressing the first semicircular block 16 into the first housing 15 and the second semicircular block 24 into the second housing 23. As the second housing 23 continues to move, the second elastic telescopic rod 27 drives the first hinge plate 26, which in turn drives the second track 25 to move. The second track 25 then drives the second semicircular block 24 to rotate, causing the second semicircular block 24 to rotate into the first housing 15. Under the pressure of the second semicircular block 24 on the first semicircular block 16, the first semicircular block 16 rotates into the second housing 23, thus completing the limiting connection between the first connecting part 6 and the second connecting part 8.

[0039] In one embodiment, the latching part 10 includes multiple sets of clamping pieces 28 fixedly connected to the inner wall of the roller 9, with gaps between the clamping pieces 28. The gaps between the clamping pieces 28 are used to latch the insert 5 and the transverse conveying structure 13.

[0040] In one embodiment, the transverse conveying structure 13 includes a first motor 29 fixedly connected to the frame 1. The output shaft of the first motor 29 is fixedly connected to a first screw 30. The first screw 30 is threadedly connected to a hanger 31. The hanger 31 is slidably connected to a track 32 fixedly connected to the frame 1. The hanger 31 is fixedly connected to multiple sets of driven telescopic frames 33. The moving end of the driven telescopic frame 33 is fixedly connected to a pressing rod 34 adapted to the roller 9. The pressing rod 34 is intermittently engaged with the clamping plate 28. The hanger 31 is fixedly connected to a second motor 35. The output shaft of the second motor 35 is fixedly connected to a second screw 36. The second screw 36 is threadedly connected to a hinge frame 37. The hinge frame 37 is hinged to a second hinge plate 38 that is hinged to the driven telescopic frame 33. The second motor 35 drives the hinge frame 37 to slide along the hanger 31 by driving the second screw 36 to rotate. The hinge frame 37 drives the second hinge plate 38, which in turn drives the driven telescopic frame 33 to extend and retract, thereby adjusting the distance between the extrusion rods 34. This causes the extrusion rods 34 to press against the inner wall of the roller 9 and press into the clamping plates 28, which then clamp the extrusion rods 34. The first motor 29 drives the first screw 30 to rotate, which in turn drives the hanger 31 to slide along the track 32. The hanger 31 then drives the second motor 35 to move, thereby moving the roller 9.

[0041] In one embodiment, the rotating conveying structure 14 includes a third motor 39 fixedly connected to the frame 1. The output shaft of the third motor 39 is fixedly connected to a tripod 40. The tripod 40 is movably connected to multiple sets of cylindrical frames 41. The connection between the tripod 40 and the cylindrical frames 41 can be either a snap-fit ​​or a bolted connection. The cylindrical frames 41 have straight grooves that provide space for the movement of the hanger 31. Multiple sets of inserts 42 adapted to the clamps 28 are installed on the cylindrical frames 41. The third motor 39 drives the tripod 40 to rotate, which in turn drives the multiple sets of cylindrical frames 41 to rotate and change position. The cylindrical frames 41 drive the roller 9 to move and change position, with the inserts 42 inserted into the gaps between the clamps 28, thereby preventing relative rotation between the roller 9 and the cylindrical frames 41.

[0042] Example 2, based on Example 1, see [link / reference] Figure 1 , Figure 5 , Figure 6The rotating rolling mechanism 11 includes a mounting frame 43 fixedly connected to the frame 1. A hollow frame 44 is rotatably mounted on the mounting frame 43. A circumferential groove is formed on the hollow frame 44, and the circumferential groove is slidably connected to the mounting frame 43. Multiple sets of teeth 45 are fixedly mounted on the circumferential surface of the hollow frame 44. A fourth motor 46 is fixedly mounted on the mounting frame 43. A first gear 47 that meshes with the teeth 45 is fixedly connected to the output shaft of the fourth motor 46. An extension frame 48 is slidably connected to the hollow frame 44. A fifth motor 49 is fixedly mounted on the extension frame 48. A second gear 50 is fixedly connected to the output shaft of the fifth motor 49. A third gear 51 is meshed with the second gear 50. A pressure roller 52 is coaxially connected to the third gear 51. The pressure roller 52 is rotatably connected to the extension frame 48. A second active telescopic rod 53 is installed between the extension frame 48 and the hollow frame 44. The second active telescopic rod 53 is used to adjust the distance between the extension frame 48 and the hollow frame 44. The fourth motor 46 drives the first gear 47 to rotate. The first gear 47 drives the hollow frame 44 to rotate through the tooth 45. The hollow frame 44 drives the extension frame 48 to deflect. The fifth motor 49 and the pressure roller 52 move together with the extension frame 48. The fifth motor 49 drives the third gear 51 to rotate through the second gear 50. The third gear 51 drives the pressure roller 52 to rotate, so that the pressure roller 52 rolls over the surface of the softened board, thereby avoiding relative sliding between the pressure roller 52 and the board, and thus preventing the softened board from being stretched by friction. The rotation angle of the first gear 47 is controlled by controlling the rotation angle of the output shaft of the fourth motor 46, thereby controlling the deflection angle on the hollow frame 44. The bending angle of the board is controlled by controlling the deflection angle of the hollow frame 44.

[0043] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A multi-angle hot bending machine for plate material comprising a frame, characterized in that, Also include: The lifting platform connected with the rack is used for adjusting the height of the plate; The deflection hot pressing structure connected with the rack, the insertion frame fixedly connected with the rack, the first connecting part installed on the insertion frame, the first active telescopic rod installed on the rack matched with the first connecting part, the second connecting part movably connected with the first connecting part, the roller fixedly connected with the second connecting part, the clamping part installed on both ends of the roller, the clamping part including a plurality of clamping pieces fixedly connected with the inner wall of the roller, one of the clamping parts movably connected with the insertion frame, the rotary rolling mechanism connected with the rack, the electromagnetic heating coil fixedly installed on the insertion frame matched with the roller, the electromagnetic heating coil based on electromagnetic induction operation for heating the roller, the mounting frame fixedly connected with the rack, the hollow frame rotatably installed on the mounting frame, a plurality of teeth fixedly installed on the circumferential surface of the hollow frame, the fourth motor connected with the mounting frame, the output shaft of the fourth motor fixedly connected with the first gear engaged with the teeth, the extension frame slidably connected with the hollow frame, the fifth motor fixedly installed on the extension frame, the output shaft of the fifth motor fixedly connected with the second gear, the third gear engaged with the second gear, the pressure roller coaxially connected with the third gear, the pressure roller rotatably connected with the extension frame, and the second active telescopic rod installed between the extension frame and the hollow frame; The transverse conveying structure connected with the rack, the transverse conveying structure movably connected with the roller, the transverse conveying structure movably connected with the other clamping part, the transverse conveying structure for adjusting the position of the roller, the first motor fixedly connected with the rack, the output shaft of the first motor fixedly connected with the first screw, the hanger threadedly connected with the first screw, the track fixedly connected with the rack slidably connected with the hanger, a plurality of driven telescopic frames fixedly connected with the hanger, the extrusion rod fixedly connected with the roller matched with the driven telescopic frame, the extrusion rod intermittently matched with the clamping piece, the second motor fixedly connected with the hanger, the output shaft of the second motor fixedly connected with the second screw, and the second hinge plate hingedly connected with the driven telescopic frame of the hinge frame; The rotary conveying structure connected with the rack, the rotary conveying structure for carrying the roller and adjusting the position of the roller, the third motor fixedly connected with the rack, the output shaft of the third motor fixedly connected with the tripod, a plurality of cylinder frames movably connected with the tripod, and a plurality of insertion pieces matched with the clamping pieces installed on the cylinder frame.

2. The multi-angle hot bending machine for plate according to claim 1, characterized in that, The first connecting part comprises a plurality of groups of first housings fixedly connected with the rack, a first semicircular block adapted to the second connecting part is rotatably installed in the first housing, the first semicircular block is rotatably connected with the first housing through a first track strip, the first track strip is fixedly connected with a groove frame, the groove frame is hingedly connected with a first elastic telescopic rod hingedly connected with the first housing, a notch is formed in the groove frame, and a linkage frame is slidably connected with the notch of the groove frame.

3. The multi-angle hot bending machine for plate material according to claim 2, characterized in that, The second connecting part comprises a second housing fixedly connected with the roller, the second housing is movably connected with the first semicircular block, a second semicircular block movably connected with the first housing is rotatably installed in the second housing, the second semicircular block is rotatably connected with the second housing through a second track strip, the second track is fixedly connected with a first hinged plate, and the first hinged plate is hingedly connected with a second elastic telescopic rod hingedly connected with the second housing.

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