Arc pressing mechanism for arc forming

Abstract

The utility model provides an arc pressing mechanism for arc forming. The arc pressing mechanism comprises a supporting frame, two fixed pressing roller sets and a movable pressing roller set, wherein the two fixed pressing roller sets and the movable pressing roller set are arranged on the supporting frame. The two fixed pressure roller groups are respectively arranged on the leading-in side and the leading-out side of the movable pressure roller group, and are arranged on the same side; the movable compression roller group comprises a movable seat, and a first compression roller group and a second compression roller group which are arranged on the movable seat; the supporting frame is in sliding fit with the moving base and comprises a driving mechanism used for driving the moving base to move transversely. When the U-shaped groove plate is subjected to roll bending, the two fixed pressing roll sets are arranged at the two ends of the U-shaped groove plate correspondingly, and the fixed pressing roll sets abut against the outer side edge of the left side of the U-shaped groove plate; the movable compression roller set is arranged in the middle of the U-shaped groove plate, the first compression roller set abuts against the outer side edge of the right side of the U-shaped groove plate, and the second compression roller set is arranged in a groove opening of the U-shaped groove plate and abuts against the inner side edge of the left side of the U-shaped groove plate. The movable base moves in the direction towards the fixed pressing roller set, and the first pressing roller set and the second pressing roller set are matched to apply transverse bending force to the middle of the U-shaped groove plate.

Description

Technical Field

[0001] This utility model relates to bending plate roll forming equipment, and more particularly to an arc pressing mechanism for bending arc forming. Background Technology

[0002] In the processing of steel plates, it is often necessary to bend the steel plates on both sides. Steel plate roll bending equipment can realize the processing technology of bending the steel plates on both sides. Roll bending is a process of bending the metal plate strip laterally by multiple rollers.

[0003] With the increasing demand for bent steel plates, it is necessary to bend steel plates to various degrees of curvature. However, current roll forming machines have all rollers positioned within a pre-defined arc curve, meaning they can only process steel plates of one curvature during pressing, which cannot meet the production needs of roll forming profiles with different curvatures. Utility Model Content

[0004] The present invention aims to solve the problem that existing roller bending devices cannot meet the production needs of roller forming of profiles with different curvatures, and therefore provides an arc pressing mechanism for arc forming.

[0005] To solve the above-mentioned technical problems, this utility model provides an arc pressing mechanism for bending arc forming, including a support frame and two sets of fixed pressure rollers and one set of moving pressure rollers arranged on the support frame; the two sets of fixed pressure rollers are respectively arranged on the inlet side and outlet side of the moving pressure rollers, and the two sets of fixed pressure rollers are arranged on the same side;

[0006] The moving pressure roller assembly includes a movable seat and a first pressure roller assembly and a second pressure roller assembly disposed on the movable seat; the support frame is slidably engaged with the movable seat, and the support frame includes a drive mechanism for driving the movable seat to move laterally;

[0007] When bending the U-shaped groove plate, the two sets of fixed pressure rollers are respectively placed at both ends of the U-shaped groove plate, and the fixed pressure rollers abut against the outer side of the left side of the U-shaped groove plate; the moving pressure rollers are placed in the middle of the U-shaped groove plate, the first pressure rollers abut against the outer side of the right side of the U-shaped groove plate, and the second pressure rollers are placed in the groove of the U-shaped groove plate and abut against the inner side of the left side of the U-shaped groove plate; the movable seat moves in the direction toward the fixed pressure rollers, and the first pressure rollers and the second pressure rollers cooperate to apply a transverse bending force to the middle of the U-shaped groove plate.

[0008] In a preferred embodiment, the constant pressure roller assembly includes a mounting base, a rotating shaft, and a constant roller; the constant roller is rotatably mounted on the mounting base via the rotating shaft; the upper end of the constant roller is provided with a convex ring, and the groove of the U-shaped groove plate is provided with an inwardly folded edge;

[0009] When the U-shaped groove plate is rolled, the lower edge of the convex ring abuts against the folded edge, and the side of the fixed roller abuts against the outer side of the left side of the U-shaped groove plate.

[0010] In a preferred embodiment, a plurality of first spacers are sleeved on the rotating shaft, and the rotating shaft is detachably connected to the mounting seat.

[0011] After the rotating shaft is detached, the vertical installation height of the fixed roller is adjusted by adjusting the assembly position of the first spacers.

[0012] In a preferred embodiment, slide seats are arranged on the two sides of the bottom of the moving seat, and two tracks are arranged on the support frame; the slide seats are in sliding fit with the tracks.

[0013] The moving seat comprises a driving module for driving the second compression roller group to move laterally, and the first compression roller group is fixed on the moving seat.

[0014] In a preferred embodiment, the second compression roller group comprises a first compression roller group and a second compression roller group, and the diameter of the roller in the first compression roller group is smaller than that of the roller in the second compression roller group.

[0015] According to the width of the U-shaped groove plate, one of the first compression roller group and the second compression roller group is selected to be pressed by driving the driving module.

[0016] In a preferred embodiment, the first compression roller group comprises a first roller, and the second compression roller group comprises a second roller and a third roller; the driving module comprises a horizontal movement module for simultaneously driving the first roller, the second roller and the third roller to move laterally.

[0017] When the U-shaped groove plate is rolled by the first compression roller group, the horizontal movement module drives the first roller to be placed in the notch of the U-shaped groove plate and abut against the inner side of the left side of the U-shaped groove plate.

[0018] When the U-shaped groove plate is rolled by the second compression roller group, the horizontal movement module drives the third roller and the second roller, the third roller is placed in the notch of the U-shaped groove plate and abuts against the inner side of the left side of the U-shaped groove plate, and the second roller is placed on the outer side of the left side of the U-shaped groove plate.

[0019] In a preferred embodiment, the first compression roller group comprises a first rotating shaft connected to the horizontal movement module, and the first rotating shaft comprises a ring plate and a plurality of second spacers.

[0020] The second spacers are arranged between the ring plate and the first roller; the first roller and the second spacers are detachably installed on the first rotating shaft, and the vertical installation height of the first roller is adjusted by adjusting the number of the second spacers assembled between the ring plate and the first roller.

[0021] In a preferred embodiment, the driving module comprises a lifting mechanism, the second roller is connected with the lifting mechanism; the third roller is connected with the transverse moving module through a second rotating shaft; the second rotating shaft comprises a plurality of third spacers;

[0022] The third roller, the third spacer and the second rotating shaft are detachably connected, the vertical installation height of the third roller is adjusted by adjusting the assembly quantity of the third spacer; the lifting mechanism drives the second roller, and the vertical height of the third roller is matched.

[0023] In a preferred embodiment, the first compression roller group comprises a fourth roller, a positioning ring, a compression block and a plurality of fourth spacers; a third rotating shaft is arranged on the moving seat, and the fourth roller, the fourth spacer and the positioning ring are sequentially assembled on the third rotating shaft in the axial direction;

[0024] The fourth spacer and the positioning ring are detachably installed on the third rotating shaft, the vertical installation height of the positioning ring is adjusted by adjusting the quantity of the fourth spacer; the compression block limits the positioning ring in the axial direction.

[0025] In a preferred embodiment, the first compression roller group comprises a lifting screw rod, the lifting screw rod is connected with the compression block, one end of the compression block towards the third rotating shaft is provided with a hole, the lifting screw rod drives the compression block to move downward, the third rotating shaft is inserted into the hole of the compression block, and the compression block presses the positioning ring.

[0026] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0027] 1. The dynamic compression roller group for applying a transverse bending force to the U-shaped groove plate is arranged to be movable relative to the support frame, the transverse bending degree of the U-shaped groove plate is adjusted through the transverse moving amount of the dynamic compression roller group, the processing requirements of U-shaped groove plates with different radii can be met, and the production efficiency is high.

[0028] 2. The first compression roller group and the second compression roller group are arranged to apply a transverse bending force to the middle part of the U-shaped groove plate, so that the U-shaped structure of the U-shaped groove plate does not deform when the U-shaped groove plate is bent, and the accuracy of the bending degree and the yield rate can be ensured.

[0029] 3. A plurality of spacers are detachably arranged to adjust the vertical installation height of the rollers in the fixed compression roller group and the dynamic compression roller group, and the roll bending forming of U-shaped groove plates with different depths is met. The height adjustment is realized by using different numbers of spacers to be stacked, and the structure is simple and the operation is simple.

[0030] 4. The second compression roller group is provided with two groups of compression rollers with different diameters, and is matched with the roll bending forming of the U-shaped groove plate with different widths, and the roll bending forming of the U-shaped groove plate is realized by selecting one group of compression rollers in the first compression roller group and the second compression roller group according to the width of the U-shaped groove plate, the adaptability is high, and the accuracy of the bending degree can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a whole machine schematic view of the pressure arc mechanism in the preferred embodiment of the utility model;

[0032] Figure 2 It is a sliding cooperation structure view of the supporting frame and the moving seat in the preferred embodiment of the utility model;

[0033] Figure 3 It is a position distribution schematic view of the fixed compression roller group and the movable compression roller group in the preferred embodiment of the utility model;

[0034] Figure 4 It is a distribution schematic view of each roller in the fixed compression roller group and the movable compression roller group in the preferred embodiment of the utility model;

[0035] Figure 5 It is a cooperation view of the second compression roller group and the U-shaped groove plate in the preferred embodiment of the utility model;

[0036] Figure 6 It is a cooperation view of the first compression roller group and the U-shaped groove plate in the preferred embodiment of the utility model;

[0037] Figure 7 It is a structure view of the fixed compression roller group in the preferred embodiment of the utility model;

[0038] Figure 8 It is a structure view of the movable compression roller group in the preferred embodiment of the utility model;

[0039] Figure 9 It is a dismounting schematic view of the fourth gasket in the first compression roller group in the preferred embodiment of the utility model;

[0040] Figure 10 It is an assembling schematic view of the fourth gasket in the first compression roller group in the preferred embodiment of the utility model;

[0041] Figure 11 It is a schematic view of dismounting the second gasket in the first compression roller group in the preferred embodiment of the utility model;

[0042] Figure 12 It is a driving structure view of the first compression roller group and the second compression roller group in the preferred embodiment of the utility model;

[0043] Figure 13 It is a driving structure side sectional view of the first compression roller group and the second compression roller group in the preferred embodiment of the utility model;

[0044] Figure 14 It is the forming schematic view of the curved U-shaped groove plate in the preferred embodiment of the utility model.

[0045] Mark explanation: 1, support frame;11, track;12, drive mechanism;2, fixed pressure roller group;21, mounting seat;22, fixed roller;23, convex ring;24, rotating shaft;25, first gasket;26, nut;3, dynamic pressure roller group;31, first pressure roller group;311, fourth roller;312, fourth gasket;313, pressing block;314, third rotating shaft;315, lifting screw;316, hole;317, positioning ring;32, one pressure roller group;321, first roller;322, first rotating shaft;323, second gasket;324, screw;325, annular plate;326, annular gasket;33, two pressure roller groups;331, second roller;332, third roller;333, third gasket;34, drive module;341, transverse movement module;342, lifting mechanism;343, sliding block;344, slide rail;35, moving seat;36, sliding seat;4, U-shaped groove plate;41, U-shaped groove;42, folded edge;43, side edge. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model;Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments;Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0047] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0048] In the description of the utility model, it should be explained that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be wall-mounted connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements, for those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0049] As Figure 1 , the embodiment provides a pressure arc mechanism for arc forming, which is used for transversely bending a vertical U-shaped groove plate 4 to form a curved U-shaped groove plate 4 with a certain arc (as Figure 14 ). The pressure arc mechanism comprises a support frame 1 and two groups of fixed pressure roller sets 2 and one group of movable pressure roller sets 3 arranged on the support frame 1, as Figure 3 , the two groups of fixed pressure roller sets 2 are symmetrically arranged on both sides of the group of movable pressure roller sets 3, and the two groups of fixed pressure roller sets 2 are arranged on the same side, and the vertical U-shaped groove plate 4 is transversely bent by the transverse movement of the intermediate movable pressure roller set 3 and the positioning of the two side fixed pressure roller sets 2, so as to generate a certain arc. The roller wheels in the fixed pressure roller set 2 and the movable pressure roller set 3 are all unpowered roller wheels, which roll with the transportation of the U-shaped groove plate 4.

[0050] As Figure 7 , the fixed pressure roller set 2 comprises a mounting seat 21 and a fixed roller wheel 22 assembled on the mounting seat 21, the upper end of the fixed roller wheel 22 is provided with a convex ring 23, the U-shaped groove plate 4 is inwardly folded at the U-shaped groove 41 to form a folded edge 42, when the U-shaped groove plate 4 passes through the fixed roller wheel 22, the folded edge 42 cooperates with the convex ring 23, and when the U-shaped groove plate 4 is transversely bent, the fixed roller wheel 22 is located at the outer side edge 43 of the U-shaped groove plate 4, and the side surface of the fixed roller wheel 22 abuts against the outer side surface of the U-shaped groove plate 4, so as to transversely position the outer side edge 43 of the U-shaped groove plate 4, and ensure that the intermediate transverse stress can form an arc-shaped deformation. The lower edge surface of the convex ring 23 abuts against the folded edge 42, and the convex ring 23 cooperates with the fixed roller wheel 22 to position the folded edge 42 and the side edge 43 of the U-shaped groove plate 4, so as to avoid deformation or lifting of the folded edge 42 of the U-shaped groove plate 4 during the stress process.

[0051] As Figure 7 , the fixed roller wheel 22 is installed on the mounting seat 21 through a rotating shaft 24, a plurality of first gaskets 25 can be sleeved on the rotating shaft 24, the installation height of the fixed roller wheel 22 can be changed by changing the position distribution of the first gaskets 25, the height position of the convex ring 23 is adjusted to meet the pressing needs of U-shaped groove plates 4 with different depths. The depths of the U-shaped groove plates 4 are different, and the heights of the side edges 43 and the folded edges 42 are also different, in order to enable the U-shaped groove plate 4 to pass through and form the pressing positioning of the folded edge 42, the height of the convex ring 23 is changed by adjusting the number of the first gaskets 25, so that it can adapt to the folded edges 42 with different heights, and the smooth passing of the U-shaped groove plate 4 is ensured. The rotating shaft 24 is locked on the mounting seat 21 through a nut 26, the rotating shaft 24 can be disassembled through the nut 26, then the first gaskets 25 can be disassembled relative to the rotating shaft 24, after a proper number of first gaskets 25 are sleeved on the rotating shaft 24, the rotating shaft 24 is relocked on the mounting seat 21, and the rotating shaft 24 is tightened through the nut 26 until the first gaskets 25 abut against the mounting seat 21.

[0052] Mounting base 21 has mounting openings at the top and bottom. The upper and lower ends of the rotating shaft are locked by nuts 26. When adjusting the height of the fixed roller 22, after the rotating shaft is disassembled, a suitable number of first shims 25 are installed above the fixed roller 22, and the remaining first shims 25 are installed below the fixed roller 22. By adjusting the position and number of the upper and lower first shims 25, the installation height of the fixed roller 22 can be adjusted.

[0053] The moving pressure roller assembly 3 includes a first pressure roller assembly 31 and a second pressure roller assembly 33 for transverse pressing, and a movable seat 35 for mounting the two pressure roller assemblies. Slide seats 36 are provided on both sides of the bottom of the movable seat 35, and two corresponding tracks 11 are provided on the support frame 1. The slide seats 36 slide in cooperation with the tracks 11 (e.g., ...). Figure 2 A drive mechanism 12 is provided on the side 43 of the support frame 1. This drive mechanism 12 is pneumatically driven (e.g., Figure 1 The drive end of the drive mechanism 12 is connected to the movable seat 35. Driven by the pneumatic rod, the movable seat 35 can move back and forth laterally in cooperation with the slide 36 and the track 11. The drive mechanism 12 is set on the opposite side of the fixed pressure roller group 2. When the movable seat 35 moves in the direction toward the fixed pressure roller group 2, the first pressure roller group 31 and the second pressure roller group 33 realize the lateral pressing of the U-shaped groove plate 4, making it laterally bent.

[0054] like Figures 3-4 The first pressure roller group 31 is arranged on opposite sides of the two fixed pressure roller groups 2, and the second pressure roller group 33 is arranged on the opposite side of the first pressure roller group 31. On the movable seat 35, the first pressure roller group 31 is a fixed component relative to the second pressure roller group 33, and the second pressure roller group 33 is a movable component. The first pressure roller group 31 is fixed on the movable seat 35 and moves with the movement of the movable seat 35. The second pressure roller group 33 is movably arranged on the movable seat 35. The first pressure roller group 31 is located on the outer side 43 of the U-shaped groove plate 4, and the second pressure roller group 33 is located in the groove of the U-shaped groove plate 4.

[0055] When a section of U-shaped groove plate 4 is transported into the arc pressing mechanism, the two groups of fixed roller groups 2 limit the two ends of the section of U-shaped groove plate 4 in the transverse direction, and the side surface of the fixed roller 22 abuts against the outer side surface of the left side of the end of the U-shaped groove plate 4. The first roller group 31 and the second roller group 33 apply transverse bending to the middle part of the section of U-shaped groove plate 4 by moving the moving seat 35, the side surface of the roller in the first roller group 31 abuts against the outer side surface of the right side of the middle part of the U-shaped groove plate 4, and the U-shaped groove plate 4 is pressed on both sides by the first roller group 31 and the two groups of fixed roller groups 2, so that the middle part of the U-shaped groove plate 4 can be transversely bent and deformed, the second roller group 33 is arranged in the notch of the U-shaped groove plate 4, and the side surface of the roller in the second roller group 33 abuts against the inner side surface of the left side of the middle part of the U-shaped groove plate 4, when the driving mechanism 12 starts to drive the moving seat 35 to move towards the fixed roller groups 2, the first roller group 31 and the second roller group 33 simultaneously press the middle part of the U-shaped groove plate 4 in the transverse direction under the drive of the moving seat 35, and the U-shaped shape of the U-shaped groove plate 4 is not deformed when being transversely bent by the simultaneous pressing of the first roller group 31 and the second roller group 33 on both sides of the middle part of the U-shaped groove plate 4, and only transverse bending occurs. With the movement of the moving seat 35, the middle part of the U-shaped groove plate 4 starts to deform gradually, forming transverse bending, and the pressing of U-shaped groove plates 4 with different radii can be realized by setting the movement of the moving seat 35.

[0056] In order to meet the transverse bending deformation of U-shaped groove plates 4 with different widths, Figure 4 The second roller group 33 includes a roller group 32 and a second roller group 33, and a driving module 34 is arranged at the upper end of the moving seat 35, as shown in Figure 8 The driving module 34 is used to drive the roller group 32 and the second roller group 33 to move in the transverse direction, and when pressing in the transverse direction, the appropriate roller group 32 or the second roller group 33 is selected according to the width of the U-shaped groove plate 4 to press and cooperate, and the roller group is adjusted by the transverse movement of the driving module 34 to abut against the inner side 43 of the U-shaped groove plate 4.

[0057] The diameter of the roller of the roller group 32 is smaller than that of the second roller group 33, as shown in Figure 13 The roller group 32, the first roller group 31 and the U-shaped groove plate 4 with a smaller width cooperate. As shown in Figure 11 The roller group 32 includes a first roller 321, a first shaft 322 and a plurality of second spacers 323, the first shaft 322 is installed on the driving module 34, the bottom of the first roller 321 is provided with a groove, a screw 324 is screwed in the groove, the bottom of the first shaft 322 is provided with a screw hole 316, and the screw 324 is matched to lock the first roller 321 on the first shaft 322, and the first roller 321, the second spacer 323 and the first shaft 322 are detachably connected through the cooperation of the screw hole 316 and the screw 324. As shown in Figure 11An annular plate 325 is fixed on the first rotating shaft 322 to position the second shim 323. The second shim 323 is positioned between the first roller 321 and the annular plate 325. The number of second shims 323 assembled between the annular plate 325 and the first roller 321 is adjustable. By adjusting the number of second shims 323, the interval between the annular plate 325 and the first roller 321 can be adjusted, thereby achieving height adjustment of the first roller 321 to accommodate U-shaped groove plates 4 of different depths. The diameter of the second shim 323 is smaller than the diameter of the first roller 321. During the pressing process of the U-shaped groove plate 4, the folded edge 42 of the U-shaped groove plate 4 abuts against the upper edge of the first roller 321 to shape the folded edge 42 (e.g., ...). Figure 6 ).like Figure 11 An annular gasket 326 is provided on the upper end face of the first roller 321. The diameter of the annular gasket 326 is adapted to the diameter of the first roller 321, and the folded edge 42 abuts against the upper edge of the annular gasket 326.

[0058] like Figure 13 The second roller group 33 includes a second roller 331, a third roller 332 and several third pads 333. The second roller 331 is placed on the outer side 43 of one side of the U-shaped groove plate 4, and the third roller 332 is placed on the inner side 43 of the U-shaped groove plate 4 corresponding to the same side. The second roller 331 and the third roller 332 cooperate to shape the folded edge 42 of the U-shaped groove plate 4. The third roller 332 is connected to the drive module 34 via the second rotating shaft, and a third shim 333 is mounted on the second rotating shaft. The third roller 332 and the third shim 333 can be disassembled relative to the second rotating shaft. The installation height of the third roller 332 can be adjusted by adjusting the number of third shims 333 assembled to match the depth of the U-shaped groove plate 4. The adjustment of the third shim 333 and the third roller 332 is consistent with the height adjustment structure of the first roller 321 in a pressure roller group 32. Both are detachable by screw 324 hole 316 and screw 324 locking, which will not be described in detail here.

[0059] like Figure 12 The drive module 34 includes a transverse module 341 and a lifting mechanism 342. The transverse module 341 is a linear drive module 34, which realizes the transverse movement of the first roller 321, the second roller 331, and the third roller 332 by cooperating with the slide rail 344 and the slider 343. The first roller 321, the second roller 331, and the third roller 332 move laterally synchronously. The lifting mechanism 342 adopts a pneumatic rod. The second roller 331 is connected to the lifting mechanism 342 and can move up and down.

[0060] like Figure 13In the pressing of the U-shaped groove plate 4 with a larger width, the second roller set 33 is selected for pressing cooperation, the side edge 43 of the U-shaped groove plate 4 passes through the gap between the second roller 331 and the third roller 332, the second roller 331 and the third roller 332 are driven to move horizontally to the appropriate width position by the horizontal moving module 341, the second roller 331 is adjusted in height by the lifting mechanism 342, the third roller 332 is adjusted in height by the number of third gaskets 333, and after adjustment, there is a gap between the lower edge of the second roller 331 and the upper edge of the third roller 332, which is used for the flange 42 of the U-shaped groove plate 4 to pass through, so as to realize the shaping of the flange 42. Through the lifting mechanism 342 and the third gasket 333, the U-shaped groove plate 4 with different depths can pass through smoothly. Figure 5 In the transportation and pressing of the U-shaped groove plate 4, the third roller 332 and the second roller 331 are arranged on the inside and outside of the side edge 43 of the U-shaped groove plate 4 under the driving of the horizontal moving module 341, and the side surface of the third roller 332 abuts against the inner surface of the side edge 43, the upper edge of the third roller 332 abuts against the lower end surface of the flange 42 under the height adjustment of the gasket, and the lower edge of the second roller 331 abuts against the upper end surface of the flange 42 under the driving of the lifting mechanism 342, so as to realize the shaping of the flange 42.

[0061] The second roller 331 is provided with a stepped surface, the upper end surface of the stepped surface serving as the lower edge abutting against the upper end surface of the flange 42, and in the transportation and pressing of the U-shaped groove plate 4, the side surface of the stepped surface abuts against the outer surface of the U-shaped groove plate 4, and the side surface of the third roller 332 forms the shaping of the side edge 43 of the U-shaped groove plate 4 from the inside and outside (as shown in Figure 5 ).

[0062] The adjustment and dismounting structure of the installation height of the third gasket 333 and the third roller 332 is consistent with the adjustment and dismounting structure of the installation height of the first roller 321 in the first roller set 32, and the dismounting is realized by the locking of the screw hole 316 and the screw 324, which will not be described here.

[0063] As shown in Figure 6 In the pressing of the U-shaped groove plate 4 with a smaller width, the first roller set 32 is selected for pressing cooperation, the first roller 321 is driven to move horizontally to the appropriate width position by the horizontal moving module 341, and the first roller 321 is adjusted in height by the number of second gaskets 323, so as to facilitate the smooth passing of the flange 42 of the U-shaped groove plate 4. In the transportation and pressing of the U-shaped groove plate 4, the side surface of the first roller 321 abuts against the inner surface of one side of the U-shaped groove plate 4 under the driving of the horizontal moving module 341, and the flange 42 of the U-shaped groove plate 4 abuts against the upper edge of the first roller 321, so as to realize the shaping of the flange 42.

[0064] In order to meet the different needs of the depth of the U-shaped groove plate 4, the first compression roller set 31 comprises a fourth roller 311, a fourth gasket 312, a positioning ring 317 and a pressing block 313 (as Figure 10 ), a third rotating shaft 314 is arranged on the moving seat 35, the fourth roller 311 is rotatably installed on the third rotating shaft 314, and the fourth gasket 312 and the positioning ring 317 are detachably installed on the third rotating shaft 314. The fourth roller 311, the fourth gasket 312 and the positioning ring 317 are sequentially assembled on the third rotating shaft 314 in the axial direction, and the pressing block 313 is arranged above the third rotating shaft 314, so that the axial fixation of the positioning ring 317 and the fourth gasket 312 is realized by pressing the positioning ring 317 through the pressing block 313.

[0065] As Figure 9 , specifically, the pressing block 313 is driven by a lifting screw 315 and can move up and down along the axial direction of the third rotating shaft 314, one end of the pressing block 313 towards the third rotating shaft 314 is provided with a hole 316, the diameter of the hole 316 is matched with the diameter of the third rotating shaft 314, after a proper number of fourth gaskets 312 are assembled on the third rotating shaft 314, the pressing block 313 is driven downward by the lifting screw 315, the third rotating shaft 314 is inserted into the hole 316 of the pressing block 313, and the pressing block 313 is lowered to abut against the positioning ring 317, so that the axial fixation of the positioning ring 317 is realized.

[0066] As Figure 10 , when the U-shaped groove plate 4 is pressed, the lower edge surface of the positioning ring 317 abuts against the upper end surface of the folded edge 42 of the U-shaped groove plate 4, so that the shaping of the folded edge 42 is formed, and the installation height of the positioning ring 317 is adjusted by adjusting the height of the fourth gasket 312, so that the shaping of the folded edge 42 of different heights is realized.

[0067] The above is only a preferred specific embodiment of the present application, but the design concept of the present application is not limited thereto, any skilled person in the art can make non-essential changes to the present application within the technical scope disclosed by the present application, and such changes shall be deemed as infringement of the protection scope of the present application.

Claims

1. A pressing mechanism for forming curved arcs, characterized in that: It includes a support frame and two sets of fixed pressure rollers and one set of dynamic pressure rollers mounted on the support frame; the two sets of fixed pressure rollers are respectively mounted on the inlet side and outlet side of the dynamic pressure rollers, and the two sets of fixed pressure rollers are mounted on the same side. The moving pressure roller assembly includes a movable seat and a first pressure roller assembly and a second pressure roller assembly disposed on the movable seat; the support frame is slidably engaged with the movable seat, and the support frame includes a drive mechanism for driving the movable seat to move laterally; When bending the U-shaped groove plate, the two sets of fixed pressure rollers are respectively placed at both ends of the U-shaped groove plate, and the fixed pressure rollers abut against the outer side of the left side of the U-shaped groove plate; the moving pressure rollers are placed in the middle of the U-shaped groove plate, the first pressure rollers abut against the outer side of the right side of the U-shaped groove plate, and the second pressure rollers are placed in the groove of the U-shaped groove plate and abut against the inner side of the left side of the U-shaped groove plate; the movable seat moves in the direction toward the fixed pressure rollers, and the first pressure rollers and the second pressure rollers cooperate to apply a transverse bending force to the middle of the U-shaped groove plate.

2. The arc-pressing mechanism for bending arc forming according to claim 1, characterized in that: The constant pressure roller assembly includes a mounting base, a rotating shaft, and a constant roller; the constant roller is rotatably mounted on the mounting base via the rotating shaft; the upper end of the constant roller is provided with a convex ring, and the groove of the U-shaped groove plate is provided with an inwardly folded edge; When the U-shaped groove plate is bent by roller, the lower edge of the convex ring abuts against the folded edge, and the side of the fixed roller abuts against the outer side of the left side of the U-shaped groove plate.

3. The arc-pressing mechanism for bending arc forming according to claim 2, characterized in that: Several first washers are fitted on the rotating shaft, and the rotating shaft is detachably connected to the mounting base. After disassembling the rotating shaft, the vertical installation height of the fixed roller is adjusted by adjusting the assembly position of the first shim.

4. The arc-pressing mechanism for bending arc forming according to claim 1, characterized in that: The movable seat is provided with sliding seats on both sides of its bottom, and the support frame is provided with two tracks; the sliding seats are slidably engaged with the tracks. The movable seat includes a drive module for driving the second pressure roller group to move laterally, and the first pressure roller group is fixed on the movable seat.

5. The arc-pressing mechanism for bending arc forming according to claim 4, characterized in that: The second pressure roller group includes a pressure roller group and a second pressure roller group, wherein the diameter of the rollers in the first pressure roller group is smaller than the diameter of the rollers in the second pressure roller group; Based on the width of the U-shaped groove plate, the driving module selects one of the pressure roller groups from the first and second pressure roller groups for pressing.

6. The arc-pressing mechanism for bending arc forming according to claim 5, characterized in that: The first pressure roller group includes a first roller, and the second pressure roller group includes a second roller and a third roller; the drive module includes a lateral movement module, which simultaneously drives the lateral movement of the first roller, the second roller, and the third roller; When a pressure roller group bends a U-shaped groove plate, the transverse module drives the first roller to be placed inside the groove of the U-shaped groove plate and abut against the inner side of the left side of the U-shaped groove plate. When the two pressure rollers bend the U-shaped groove plate, the transverse module drives the third roller and the second roller. The third roller is placed inside the groove of the U-shaped groove plate and abuts against the inner side of the left side of the U-shaped groove plate; the second roller is placed on the outer side of the left side of the U-shaped groove plate.

7. The arc-pressing mechanism for bending arc forming according to claim 6, characterized in that: The pressure roller assembly includes a first rotating shaft connected to the transverse module, and the first rotating shaft includes an annular plate and several second pads. The second shim is disposed between the annular plate and the first roller; the first roller and the second shim are detachably mounted on the first rotating shaft, and the vertical installation height of the first roller can be adjusted by adjusting the number of the second shims assembled between the annular plate and the first roller.

8. The arc-pressing mechanism for bending arc forming according to claim 6, characterized in that: The drive module includes a lifting mechanism, and the second roller is connected to the lifting mechanism; the third roller is connected to the transverse module via a second rotating shaft; the second rotating shaft includes a plurality of third pads. The third roller and the third shim are detachably connected to the second rotating shaft. The vertical installation height of the third roller can be adjusted by adjusting the number of the third shims. The lifting mechanism drives the second roller to adjust the vertical height of the third roller.

9. The arc-pressing mechanism for bending arc forming according to claim 4, characterized in that: The first pressure roller group includes a fourth roller, a positioning ring, a pressure block, and several fourth pads; the movable seat is provided with a third rotating shaft, on which the fourth roller, the fourth pads, and the positioning ring are sequentially assembled along the axial direction; The fourth gasket and the positioning ring are detachably mounted on the third rotating shaft. The vertical installation height of the positioning ring can be adjusted by adjusting the number of the fourth gasket. The pressure block limits the positioning ring in the axial direction.

10. The arc-pressing mechanism for bending arc forming according to claim 9, characterized in that: The first pressure roller assembly includes a lifting screw connected to the pressure block. The pressure block has a hole at one end facing the third rotating shaft. The lifting screw drives the pressure block downward, and the third rotating shaft is inserted into the hole of the pressure block, whereby the pressure block presses down on the positioning ring.

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