CN214321393U

CN214321393U - Compound multi-roll cold roll forming machine assembly

Info

Publication number: CN214321393U
Application number: CN202023024303.7U
Authority: CN
Inventors: 王云涛
Original assignee: Henan Winner Vibrating Equipment Co Ltd
Current assignee: Henan Winner Vibrating Equipment Co Ltd
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-10-01
Anticipated expiration: 2030-12-12

Abstract

The utility model discloses a composite multi-roller cold bending forming machine assembly, which comprises a frame; the lower roll set is arranged on the rack and consists of a plurality of lower rolls which are sequentially arranged along the conveying direction of the workpiece, and each lower roll is provided with a first section groove, a second section groove and a third section groove along the circumferential direction; the second section groove is arranged between the first section groove and the third section groove; the upper roll group is matched with the lower roll group and comprises a plurality of first forming rolls, second forming rolls and third forming rolls which are sequentially arranged along the conveying direction of the workpiece; the beneficial effects are that: integrate three shaping way on same root bottom roll, make things convenient for many different panels to carry out cold roll forming simultaneously for the efficiency of processing improves production speed, is favorable to the enterprise to profit.

Description

Compound multi-roll cold roll forming machine assembly

Technical Field

The utility model relates to a compound multi-roll forming machine assembly belongs to the forming equipment field of clod wash.

Background

The number of working rolls of the rolling mill adopted for rolling the component is small, the working rolls are structurally restricted by the gap between the two supporting rolls, and the roll diameter of the working rolls is limited. With the development of the technology, multi-roller mills are produced, the types are more and more, the rolling precision is higher and higher, the roller diameter of the roller is reduced, and the rigidity of the roller is improved. However, the multi-roll mill is mainly used for rolling three aspects of high-strength metal and alloy thin strips, high-precision strips and extremely-thin strips, and the deformation angle and the deformation stress of each roll of the multi-roll mill are particularly critical to the high-strength metal for processing plates into special shapes, so that the plates with better quality can be manufactured.

And most of the existing cold roll forming rolling mills bend single plates, and the bending angles and positions are the same, so that only one special-shaped plate can be processed, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound multi-roll forming machine assembly can effectively solve the rolling mill one-time start and can only buckle processing, lead to the lower problem of production efficiency to a panel.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

comprises a frame 1; comprises a frame 1; a lower roll set 2, the lower roll set 2 being provided on the frame 1 and comprising a plurality of lower roll sets 2 arranged in sequence in a work conveying direction, each of the lower rolls 21 being provided with a first cross-sectional groove 22, a second cross-sectional groove 23, and a third cross-sectional groove 24 along a circumferential direction thereof; the second cross-sectional groove 23 is provided between the first cross-sectional groove 22 and the third cross-sectional groove 24; the upper roll group 3 is matched with the lower roll group 2 and comprises a plurality of upper rolls 31 which are sequentially arranged along the conveying direction of a workpiece, and a first forming roll 32, a second forming roll 33 and a third forming roll 34 which are sleeved on the upper rolls 31; the second forming roll 33 is disposed between the first forming roll 32 and the third forming roll 34; the driving mechanism 4 is used for driving each lower roller 21 to rotate; the pressurizing mechanism 5 is used for controlling the pressure between the upper roll set 3 and the lower roll set 2; the first section groove 22 comprises a first groove bottom 222, first groove walls 221 symmetrically arranged at the front end and the rear end of the first groove bottom 222, and a forming wall 223 arranged at the other end of the first groove wall 221; the included angle between the first groove wall 221 and the surface of the first groove bottom 222 is set as alpha, and alpha is more than 180 degrees and less than 90 degrees; the included angle between the molding wall 223 and the surface of the first groove bottom 222 is set as beta, and alpha is more than 180 degrees and less than 90 degrees; the second section groove 23 comprises a second groove bottom 231 and second groove walls 232 symmetrically arranged at the front end and the rear end of the second groove bottom 231, and an included angle between the second groove walls 232 and the surface of the second groove bottom 231 is gamma; the numerical values of the included angles alpha, beta and gamma are not sequentially and gradually reduced along the conveying direction of the workpiece; the first forming roller 32 comprises an abutting surface 321 and forming surfaces 322 symmetrically arranged at the front end and the rear end of the abutting surface 321; the width of the abutting surface 321 is slightly smaller than that of the first groove bottom 222, and the widths of the second groove bottoms 23 are gradually reduced along the workpiece transmission direction in a non-sequential manner; the molding surface 322 is disposed in parallel with the molding wall 223.

In this way, the first forming rolls 32 sleeved by the upper rolls 31 and the first cross-section grooves 22 in the lower rolls 21 are marked as first forming lanes, the second cross-section grooves 23 and the second forming rolls 33 are marked as second forming lanes, the third forming rolls 34 and the third cross-section grooves 24 are marked as third forming lanes, and each forming lane can perform separate bending operation on the plate; the three forming channels are integrated on the same lower roller 21, and the first forming roller 32, the second forming roller 33 and the third forming roller 34 rotate synchronously, so that the simultaneous cold bending forming of a plurality of different plates is facilitated, the processing efficiency is increased, the production speed is increased, and the profit of enterprises is facilitated.

In the three forming channels, according to the numerical changes of the included angle alpha, the included angle beta and the included angle gamma, the deformation degree of the plate workpiece is adjusted according to the change of the numerical values, so that the plate processed by the first forming channel is in the shape shown in figure 11 in the drawings of the specification in the application document, the plate processed by the second forming channel is in the shape shown in figure 12 in the drawings of the specification in the application document, and the plate processed by the third forming channel is in the shape shown in figure 13 in the drawings of the specification in the application document; and utilize this device can buckle to panel according to the deformation stress of panel gradually, can make panel adapt to the change of self surperficial yield strength and stress, improve the quality of the panel after buckling.

The technical scheme 2 is as follows: on the basis of the technical scheme 1, the second forming roller 33 extends into the second section groove 23, and the thickness of the second forming roller is slightly smaller than the width of the second groove bottom 231.

Further, the width of the second groove bottom 231 is not changed, and the thickness of the second forming roller 33 is inconvenient.

So arranged, the sheet material is conveniently processed into the shape of figure 11 in the drawings of the specification in the application document.

Technical scheme 3: on the basis of the technical scheme 2, the number of the lower rollers 21 in the lower roller group 2 is twelve.

By means of the arrangement, twelve lower rollers 21 are matched with the forming rollers to gradually bend the plate workpiece, so that deformation force applied to plate bending can be separately applied, and the plate bending quality is improved; and because three shaping way deformation degree is different, and the stress is different, and some panels only need not twelve shaping deformation just can accomplish deformation, so such setting can be considered three shaping way comprehensively, under the prerequisite of saving device material as far as possible, makes three shaping way.

The technical scheme 4 is as follows: on the basis of the technical scheme 3, along the workpiece conveying direction, the included angle α in the first lower roller 21 is 180 °, the included angle α in the second lower roller 21 is 162 °, the included angle α in the third lower roller 21 is 144 °, the included angle α in the fourth lower roller 21 is 126 °, the included angle α in the fifth lower roller 21 is 108 °, the included angle α in the sixth lower roller 21 is 90 °, and the included angles α in the subsequent six lower rollers 21 are all 90 °; in the workpiece conveying direction, the included angle β between the first six lower rollers 21 is 180 °, the included angle β between the seventh lower roller 21 is 162 °, the included angle β between the eighth lower roller 21 is 144 °, the included angle β between the ninth lower roller 21 is 126 °, the included angle β between the tenth lower roller 21 is 108 °, and the included angle β between the last two lower rollers 21 is 90 °.

Further, the width of the last first forming roller 31 is much smaller than the width of the first groove bottom 222 in the last lower roller 21 and is equal to the width of the first groove bottom 222 minus the widths of the two first groove walls 221; the forming surface 312 is overlapped with the abutting surface 311 in the first five first forming rollers 32, is arranged at an included angle from the sixth first forming roller 32 to the abutting surface 311, and gradually decreases along the workpiece conveying direction until the included angle between the last forming roller 32, the abutting surface 311 and the forming surface 312 is 90 °.

According to the arrangement, the initial bending angle, the middle bending angle, the final forming bending angle and the bending angle are set according to the surface yield strength of the plate and the stress condition borne by the plate during bending, so that the physical characteristics of the plate material are not damaged during bending of the plate, and the processed and formed plate is high in quality; for the next six lower rollers 21, the included angles α are all 90 °, which is that the first bending of the plate material has been completed for the first six times, and then the second bending of the plate material is performed on the basis of the first six times.

The technical scheme 5 is as follows: on the basis of the technical scheme 4, the included angle γ of the first lower roll 21 is 180 °, the included angle γ of the second lower roll 21 is 173 °, the included angle γ of the third lower roll 21 is 165 °, the included angle γ of the fourth lower roll 21 is 150 °, the included angle γ of the fifth lower roll 21 is 140 °, the included angle γ of the sixth lower roll 21 is 125 °, the included angle γ of the seventh lower roll 21 is 110 °, the included angle γ of the eighth lower roll 21 is 100 °, and the included angles γ of the subsequent four lower rolls 21 are all 90 °.

According to the arrangement, the initial bending angle, the middle bending angle, the final forming bending angle and the bending angle are set according to the surface yield strength of the plate and the stress condition borne by the plate during bending, so that the physical characteristics of the plate material are not damaged during bending of the plate, and the processed and formed plate is high in quality; the included angles γ of the next six lower rollers 21 are all 90 °, which is the number required for forming the first forming track, and the number of the second forming tracks is relatively excessive, but the second forming tracks can also limit the sheet material in the second forming tracks.

The technical scheme 6 is as follows: on the basis of any technical scheme 1-5, the lower roll group 2 is also provided with an adjusting roll group 25, the adjusting roll group 25 is arranged between the lower rolls 21, and the adjusting roll group 25 is also arranged at the inlet and outlet positions in the workpiece conveying direction; the adjusting roller group 25 comprises adjusting rollers 251 and a fixing plate 252, wherein the adjusting rollers 251 are symmetrically arranged on the fixing plate 252, and the plane of the axes of the adjusting rollers 251 is perpendicular to the plane of the axes of the lower roller 21.

With this arrangement, the direction of conveyance of the sheet material can be restricted by the adjustment roller group 25, and the maintenance of linear advancement is ensured.

The technical scheme 7 is as follows: on the basis of any technical scheme 1-5, the rack 1 comprises a base plate 11 and an installation plate 12 which are symmetrically arranged, and the installation plate 12 is fixed at the upper end of the base plate 11 through bolts.

So configured, the mounting plate 12 is used to mount the lower and

upper roll sets

2 and 3 and the drive mechanism 4 and the pressure mechanism 5, with the base plate 11 being used for raising equipment.

The technical scheme 8 is as follows: on the basis of technical scheme 7, the loading system 5 is in including installation piece 51, setting installation piece 51 go up with installation piece 51 screw-thread fit's threaded rod 52, confession installation piece 51 gliding lieing in from top to bottom installation groove 53 on the mounting panel 12, set up mounting panel 12 upper end is right threaded rod 52 carries out spacing limiting plate 54.

The forming roller is mounted in the mounting block 51 at both ends.

With the arrangement, the threaded rod 52 can rotate to move the upper position and the lower position of the mounting block 51, so that the upper position and the lower position of the upper roller group 3 are controlled, the gap between the upper roller group 3 and the lower roller group 2 is controlled, and the device can be used for plate workpieces with different thicknesses.

Technical scheme 9: on the basis of any of claims 1 to 5 and 8, the driving mechanism 4 includes a motor 41, a driving shaft 42 disposed in the lower roll 21, a gear sleeve 43 mounted at one end of the driving shaft 42, and a chain 44 disposed on the gear sleeve 43.

Further, the motor 41 is connected with the driving shaft 42 through a gear transmission mechanism 45, and one end of the driving shaft 42 is sleeved with a front gear sleeve 43 and a rear gear sleeve 43.

With such an arrangement, the rotation speed output by the motor 41 can be adjusted by the gear transmission mechanism 45; one end of the driving shaft 42 is sleeved with a front gear sleeve and a rear gear sleeve 43, so that the motor 41 can conveniently drive all the lower rollers 21 to rotate, and the processing cost is saved.

Drawings

For ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.

Fig. 1 is a front view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a right side view of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 1;

FIG. 5 is an enlarged view of FIG. 2 at B;

FIG. 6 is a view of a part of the forming roll of the present invention;

FIG. 7 is a cross-sectional view of one of the lower rolls of the present invention;

FIG. 8 is a cross-sectional view of all the lower rolls in the lower roll set of the present invention;

fig. 9 is a sectional view of the first forming roll, the second forming roll and the third forming roll in the upper roller group of the present invention;

FIG. 10 is a cross-sectional view of the upper roll set and the lower roll set of the present invention after being engaged;

FIG. 11 is a diagram illustrating a process of forming a workpiece in a first forming channel according to the present invention;

FIG. 12 is a diagram illustrating a second forming process of the present invention;

FIG. 13 is a diagram illustrating a third forming process of the present invention;

fig. 14 is a sectional view of one of the upper rolls of the present invention.

Description of reference numerals:

1. a frame; 11. a substrate; 12. mounting a plate; 2. a lower roll set; 21. a lower roller; 22. a first cross-sectional slot; 221. a first slot wall; 222. a first tank bottom; 223. a forming wall; 23. a second cross-sectional groove; 231. the bottom of the second groove; 232. a second slot wall; 24. a third cross-sectional groove; 25. adjusting the roller set; 251. a regulating roller; 252. a fixing plate; 3. an upper roll set; 31. an upper roller; 32. a first forming roll; 321. an abutting surface; 322. molding surface; 33. a second forming roll; 34. a third forming roller; 4. a drive mechanism; 41. a motor; 42. a drive shaft; 43. a gear sleeve; 44. a chain; 45. a gear transmission mechanism; 5. a pressurizing mechanism; 51. mounting blocks; 52. a threaded rod; 53. mounting grooves; 54. and a limiting plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-14, an embodiment of a composite multi-roll cold roll forming machine assembly of the present invention includes a frame 1; a lower roll group 2, the lower roll group 2 is arranged on the frame 1 and is composed of a plurality of lower roll groups 2 which are arranged in sequence along the conveying direction of the workpiece, and each lower roll 21 is provided with a first section groove 22, a second section groove 23 and a third section groove 24 along the circumferential direction; the second cross-sectional groove 23 is provided between the first cross-sectional groove 22 and the third cross-sectional groove 24; the upper roll group 3 is matched with the lower roll group 2 and comprises a plurality of upper mounting rolls 31 which are sequentially arranged along the conveying direction of a workpiece, and a first forming roll 32, a second forming roll 33 and a third forming roll 34 which are sleeved on the upper mounting rolls 31; the second forming roll 33 is disposed between the first forming roll 32 and the third forming roll 34; the driving mechanism 4 is used for driving each lower roller 21 to rotate; the pressurizing mechanism 5 is used for controlling the pressure between the upper roll set 3 and the lower roll set 2; the first section groove 22 comprises a first groove bottom 222, first groove walls 221 symmetrically arranged at the front end and the rear end of the first groove bottom 222, and a forming wall 223 arranged at the other end of the first groove wall 221; the included angle between the first groove wall 221 and the surface of the first groove bottom 222 is set as alpha, and alpha is more than 180 degrees and less than 90 degrees; the included angle between the forming wall 223 and the surface of the first groove bottom 222 is set as beta, and alpha is more than 180 degrees and less than 90 degrees; the second section groove 23 comprises a second groove bottom 231 and second groove walls 232 symmetrically arranged at the front end and the rear end of the second groove bottom 231, and an included angle between the second groove walls 232 and the surface of the second groove bottom 231 is gamma; the included angles alpha, beta and gamma are not sequentially and gradually reduced along the conveying direction of the workpiece; the first forming roller 32 comprises an abutting surface 321 and forming surfaces 322 symmetrically arranged at the front end and the rear end of the abutting surface 321; the width of the abutting surface 321 is slightly smaller than that of the first groove bottom 222, and the width of the second groove bottom 231 is gradually reduced along the workpiece transmission direction in a non-sequential manner; the forming surface 322 includes a first deforming surface 323 and a second deforming surface 324, the first deforming surface 323 being disposed parallel to the first groove wall 221, and the second deforming surface 324 being disposed parallel to the forming wall 223.

With such an arrangement, the first cross-section grooves 22 in the first forming roll 32 and the lower rolls 21 sleeved by the upper rolls 31 are marked as a first forming passage, the second cross-section grooves 23 and the second forming rolls 33 are marked as a second forming passage, the third forming rolls 34 and the third cross-section grooves 24 are marked as a third forming passage, and each forming passage can perform independent bending operation on the plate; integrate three shaping way on same root lower roll 21 to first forming roll 32, second forming roll 33, third forming roll 34 rotate in step, make things convenient for many different panels to carry out the forming of clod wash simultaneously, accelerate the efficiency of processing, improve production speed, are favorable to the profit of enterprise.

In the three forming channels, according to the numerical changes of the included angle alpha, the included angle beta and the included angle gamma, the deformation degree of the plate workpiece is adjusted according to the change of the numerical values, so that the plate processed by the first forming channel is in the shape shown in the figure 11 in the attached drawing of the specification in the application document, the plate processed by the second forming channel is in the shape shown in the figure 12 in the attached drawing of the specification in the application document, and the plate processed by the third forming channel is in the shape shown in the figure 13 in the attached drawing of the specification in the application document; and utilize this device can buckle to panel according to the deformation stress of panel gradually, can make panel adapt to the change of self surperficial yield strength and stress, improve the quality of the panel after buckling.

In this embodiment, the second forming roller 33 extends into the second cross-sectional groove 23 and has a thickness slightly less than the width of the second groove bottom 231; the width of the second groove bottom 231 is not changed, and the thickness of the second forming roller 33 is inconvenient.

In this embodiment, the number of the lower rolls 21 in the lower roll stack 2 is twelve.

By means of the arrangement, the twelve lower rollers 21 are matched with the plurality of forming rollers to gradually bend the plate workpiece, so that deformation force applied to bending of the plate can be separately applied, and the bending quality of the plate is improved; and because three shaping way deformation degree is different, and the stress is different, and some panels only need not twelve shaping deformation just can accomplish deformation, so such setting can be considered three shaping way comprehensively, under the prerequisite of saving device material as far as possible, makes three shaping way.

In this embodiment, in the workpiece conveying direction, the included angle α in the first lower roll 21 is 180 °, the included angle α in the second lower roll 21 is 162 °, the included angle α in the third lower roll 21 is 144 °, the included angle α in the fourth lower roll 21 is 126 °, the included angle α in the fifth lower roll 21 is 108 °, the included angle α in the sixth lower roll 21 is 90 °, and the included angles α in the subsequent six lower rolls 21 are all 90 °; in the workpiece conveying direction, the included angle β between the first six lower rollers 21 is 180 °, the included angle β between the seventh lower roller 21 is 162 °, the included angle β between the eighth lower roller 21 is 144 °, the included angle β between the ninth lower roller 21 is 126 °, the included angle β between the tenth lower roller 21 is 108 °, and the included angle β between the last two lower rollers 21 is 90 °; the width of the last first forming roll 31 is much smaller than the width of the first groove bottom 222 in the last lower roll 21 and is equal to the width of the first groove bottom 222 minus the width of the two first groove walls 221; the forming surface 312 is provided in the first five first forming rolls 32 so as to overlap the abutment surface 311, is provided at an angle from the sixth first forming roll 32 to the abutment surface 311, and gradually decreases in the work conveying direction until the angle between the last forming roll 32, the abutment surface 311 and the forming surface 312 is 90 °.

According to the arrangement, the initial bending angle, the middle bending angle, the final forming bending angle and the bending angle are set according to the surface yield strength of the plate and the stress condition borne by the plate during bending, so that the physical characteristics of the plate material are not damaged during bending of the plate, and the processed and formed plate is high in quality; for the next six lower rolls 21, the included angles α are all 90 °, which is the first bending of the sheet material already completed in the first six times, and then the second bending of the sheet material is performed on the basis of the first six times.

In this embodiment, the included angle γ of the first lower roll 21 is 180 °, the included angle γ of the second lower roll 21 is 173 °, the included angle γ of the third lower roll 21 is 165 °, the included angle γ of the fourth lower roll 21 is 150 °, the included angle γ of the fifth lower roll 21 is 140 °, the included angle γ of the sixth lower roll 21 is 125 °, the included angle γ of the seventh lower roll 21 is 110 °, the included angle γ of the eighth lower roll 21 is 100 °, and the included angles γ of the subsequent four lower rolls 21 are all 90 °.

According to the arrangement, the initial bending angle, the intermediate bending angle, the final forming bending angle and the bending angle are arranged according to the surface yield strength of the plate and the stress condition borne during bending, so that the physical characteristics of the plate material are not damaged during bending of the plate, and the quality of the processed and formed plate is high; the included angles γ of the six subsequent lower rollers 21 are all 90 °, which is the number required for forming the first forming passage, and is relatively redundant for the second forming passage, but can also limit the plate in the second forming passage.

In this embodiment, the lower roll set 2 is further provided with an adjusting roll set 25, the adjusting roll set 25 is arranged between the lower rolls 21, and the adjusting roll set 25 is also arranged at the inlet and outlet positions in the workpiece conveying direction; the adjusting roller group 25 comprises an adjusting roller 251 and a fixing plate 252, wherein the adjusting roller 251 is symmetrically arranged on the fixing plate 252, and the plane of the axis of the adjusting roller 251 is vertical to the plane of the axis of the lower roller 21.

In this embodiment, the frame 1 includes a substrate 11 and a mounting plate 12 that are symmetrically disposed, and the mounting plate 12 is fixed to the upper end of the substrate 11 by bolts.

So arranged, the mounting plate 12 is used to mount the lower and upper roll sets 2, 3 and the drive and pressure mechanisms 4, 5, with the base plate 11 being used for the lifting device.

In this embodiment, the pressurizing mechanism 5 includes an installation block 51, a threaded rod 52 disposed on the installation block 51 and in threaded engagement with the installation block 51, an installation groove 53 located on the installation plate 12 for the installation block 51 to slide up and down, and a limit plate 54 disposed on the installation plate 12 for limiting the threaded rod 52.

The forming rollers are mounted in the mounting blocks 51 at both ends.

So set up, the rotation that utilizes threaded rod 52 can remove the upper and lower position of installation piece 51 to the control upper roll group 3's that arrives upper and lower position reaches the effect in the clearance between control upper roll group 3 and lower roll group 2, can make this device be used for the panel work piece of different thickness.

In this embodiment, the driving mechanism 4 includes a motor 41, a driving shaft 42 disposed in the lower roll 21, a gear sleeve 43 mounted on one end of the driving shaft 42, and a chain 44 disposed on the gear sleeve 43; the motor 41 is connected with the driving shaft 42 through a gear transmission mechanism 45, and one end of the driving shaft 42 is sleeved with a front gear sleeve 43 and a rear gear sleeve 43.

With such an arrangement, the rotation speed output by the motor 41 can be adjusted by using the gear transmission mechanism 45; one end of the driving shaft 42 is sleeved with a front gear sleeve and a rear gear sleeve 43, so that all the lower rollers 21 can be driven to rotate by one motor 41, and the processing cost is saved.

In this embodiment, the bending angles of the third forming lane and the first forming lane with respect to the plate are the same, and the matched bending angles of the lower roller 21, the first forming roller 32 and the third forming roller 34 are also the same, but the difference is that the widths of the groove bottom and the groove wall to be bent are different, and the thickness changes of the first forming roller 32 and the third forming roller 34 are different, so the processing methods of the first forming lane and the third forming lane are the same.

The above description is only for the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. The utility model provides a compound multi-roll forming machine assembly which characterized in that: comprises a frame (1);

the lower roll set (2) is arranged on the frame (1) and is composed of a plurality of lower roll sets (2) which are sequentially arranged along the conveying direction of a workpiece, and each lower roll (21) is provided with a first section groove (22), a second section groove (23) and a third section groove (24) along the circumferential direction; the second cross-sectional groove (23) is disposed between the first cross-sectional groove (22) and the third cross-sectional groove (24);

the upper roll group (3) is matched with the lower roll group (2) and comprises a plurality of upper rolls (31) which are sequentially arranged along the conveying direction of a workpiece, and a first forming roll (32), a second forming roll (33) and a third forming roll (34) which are sleeved on the upper rolls (31); the second forming roll (33) being arranged between the first forming roll (32) and the third forming roll (34);

the driving mechanism (4) is used for driving each lower roller (21) to rotate;

the pressurizing mechanism (5) is used for controlling the pressure between the upper roll set (3) and the lower roll set (2);

the first section groove (22) comprises a first groove bottom (222), first groove walls (221) symmetrically arranged at the front end and the rear end of the first groove bottom (222), and forming walls (223) arranged at the other ends of the first groove walls (221); an included angle between the first groove wall (221) and the surface of the first groove bottom (222) is set to be alpha, and alpha is more than 180 degrees and less than 90 degrees; the included angle between the forming wall (223) and the surface of the first groove bottom (222) is set as beta, and alpha is more than 180 degrees and less than 90 degrees; the second section groove (23) comprises a second groove bottom (231) and second groove walls (232) symmetrically arranged at the front end and the rear end of the second groove bottom (231), and an included angle between the second groove walls (232) and the surface of the second groove bottom (231) is gamma; the numerical values of the included angles alpha, beta and gamma are not sequentially and gradually reduced along the conveying direction of the workpiece; the first forming roller (32) comprises an abutting surface (321) and forming surfaces (322) symmetrically arranged at the front end and the rear end of the abutting surface (321); the width of the abutting surface (321) is slightly smaller than that of the first groove bottom (222), and the width of the first groove bottom (222) is gradually reduced along the workpiece transmission direction in a non-sequential mode; the forming surface (322) includes a first deforming surface (323) and a second deforming surface (324), the first deforming surface (323) is disposed in parallel with the first groove wall (221), the second deforming surface (324) is disposed in parallel with the forming wall (223), and the first cross-sectional groove (22) and the third cross-sectional groove (24) are identical in shape.

2. The compound multi-roll cold roll forming machine assembly according to claim 1, characterized in that: the second forming roller (33) extends into the second cross-section groove (23) and has a thickness slightly less than the width of the second groove bottom (231).

3. The compound multi-roll cold roll forming machine assembly according to claim 2, characterized in that: the number of the lower rollers (21) in the lower roller group (2) is twelve.

4. A compound multi-roll cold roll forming machine assembly according to claim 3, characterized in that: in the workpiece conveying direction, an included angle alpha in the first lower roller (21) is 180 degrees, an included angle alpha in the second lower roller (21) is 162 degrees, an included angle alpha in the third lower roller (21) is 144 degrees, an included angle alpha in the fourth lower roller (21) is 126 degrees, an included angle alpha in the fifth lower roller (21) is 108 degrees, an included angle alpha in the sixth lower roller (21) is 90 degrees, and included angles alpha in the subsequent six lower rollers (21) are all 90 degrees; in the workpiece conveying direction, the included angle beta between the first six lower rollers (21) is 180 degrees, the included angle beta between the seventh lower roller (21) is 162 degrees, the included angle beta between the eighth lower roller (21) is 144 degrees, the included angle beta between the ninth lower roller (21) is 126 degrees, the included angle beta between the tenth lower roller (21) is 108 degrees, and the included angle beta between the last two lower rollers (21) is 90 degrees.

5. The compound multi-roll cold roll forming machine assembly according to claim 4, wherein: the included angle gamma in the first lower roller (21) is 180 degrees, the included angle gamma in the second lower roller (21) is 173 degrees, the included angle gamma in the third lower roller (21) is 165 degrees, the included angle gamma in the fourth lower roller (21) is 150 degrees, the included angle gamma in the fifth lower roller (21) is 140 degrees, the included angle gamma in the sixth lower roller (21) is 125 degrees, the included angle gamma in the seventh lower roller (21) is 110 degrees, the included angle gamma in the eighth lower roller (21) is 100 degrees, and the included angles gamma in the subsequent four lower rollers (21) are all 90 degrees.

6. A compound multi-roll cold roll forming machine assembly according to any one of claims 1-5, characterized in that: the lower roll set (2) is also provided with an adjusting roll set (25), the adjusting roll set (25) is arranged between the lower rolls (21), and the adjusting roll set (25) is also arranged at the inlet and the outlet of the lower roll set in the workpiece conveying direction; the adjusting roller group (25) comprises adjusting rollers (251) and a fixing plate (252), wherein the adjusting rollers (251) are symmetrically arranged on the fixing plate (252), and the plane of the axes of the adjusting rollers (251) is perpendicular to the plane of the axes of the lower rolling roller (21).

7. A compound multi-roll cold roll forming machine assembly according to any one of claims 1-5, characterized in that: frame (1) including base plate (11) and mounting panel (12) that the symmetry set up, mounting panel (12) pass through the bolt fastening base plate (11) upper end.

8. The compound multi-roll cold roll forming machine assembly according to claim 7, wherein: load mechanism (5) are in including installation piece (51), setting installation piece (51) go up with installation piece (51) screw-thread fit's threaded rod (52), confession installation piece (51) gliding being located from top to bottom mounting groove (53), the setting on mounting panel (12) are in mounting panel (12) upper end is right threaded rod (52) carry out spacing limiting plate (54).

9. A compound multi-roll cold roll forming machine assembly according to any one of claims 1-5, characterized in that: the driving mechanism (4) comprises a motor (41), a driving shaft (42) arranged in the lower roller (21), a gear sleeve (43) arranged at one end of the driving shaft (42), and a chain (44) arranged on the gear sleeve (43).

10. The compound multi-roll cold roll forming machine assembly according to claim 8, wherein: the driving mechanism (4) comprises a motor (41), a driving shaft (42) arranged in the lower roller (21), a gear sleeve (43) arranged at one end of the driving shaft (42), and a chain (44) arranged on the gear sleeve (43).