RU50886U1 - BENDING MILL - Google Patents

Abstract

The utility model relates to the processing of metals by pressure, in particular to equipment used for the production of bent thin-walled profiles, and can be used in the working stands of profile bending mills for the production of profiles of complex shape.

The technical result of the claimed utility model:

- expanding the technological capabilities of the profiling process due to a wider range of adjustments to the position of the upper and lower shafts;

- the rigid construction of the stand allows you to produce profiles with a large thickness of the material of the original workpiece, a significant number of bending zones, while maintaining a high quality bent profile and a stable process of forming bent profiles;

- the simplicity of the stand design provides a high degree of maintainability.

The technical result of the claimed utility model is achieved by the fact that, in comparison with the invention, a roll forming mill adopted as a prototype comprising a row of stands with profiled rolls driven by an electric drive mounted on a bed and an input guide device installed in front of the first stand and containing plates with grooves and fixed in these grooves are adjustable basic elements, while the first pair of rolls and at least one subsequent are provided with protrusions, in the inventive utility model the tan is equipped with the correct device, installed behind the last profiling stand, and made with the possibility of shifting the axis of editing relative to the axis of profiling, the control panel of the bending mill, while the frame of the bending mill is made of at least two sections, including at least two profiling stands, and intermediate stands located between them and the aforementioned electric drive, each profiling stand is equipped with a locking earring mounted in the frame, mounted with one of the sides of the crate and the upper and lower sliders, mounted one above the other with a gap and fixed in the uprights on one side of the cage and on the locking earring on the other side of the cage, while the upper and lower shafts are driven and installed in the said sliders, mainly on rolling bearings, with the possibility of their vertical movement together with the sliders on racks by means of lifting spindles located symmetrically relative to the cage body, mainly two, in its upper and lower parts, the lower ue rolls of each pair coupled between a caliber rolls in each roll stand the work roll forming mill made of various widths and provided with compensating spacers of different widths, Placing the lower shafts on both sides of the forming roll covering thus

that, together with the lower female rolls, form a constant uniform size of the total dimensional target o ”of the main axis of the profile to the installation base in each gauge of each stand of the roll forming mill, and the said pairs of forming rolls in each caliber of each stand of the roll forming mill are connected by end mating surfaces by landing“ in lock ”according to H 7 / h7 and are made with a constant lateral size of the vertical gap in the caliber of each stand of the roll forming mill, and the caliber of each working stand of the multi-stand profile bending mill formed closed around the perimeter of the working circuit and the horizontal arrangement of the edges of the profile at the ends limited by the width of the deforming protrusions, and the vertical position profile edges at the ends limited by the width of the ledges.

In addition, an additional technical result, the ability to change the width of the profiled profile passing through the vertically arranged shafts of the intermediate stand during the profiling operation in the roll forming mill, as well as to bring the manufactured profile to the specified dimensions by means of technological equipment attached to the vertical shafts, is achieved by the fact that each said intermediate stand is provided with at least two sliders on which vertically arranged shafts are mounted, with the technological equipment mounted on them, including rollers, dies, etc., the sliders being installed with the possibility of horizontal movement in grooves made in the cage of the intermediate stand.

In addition, an additional technical result, the ability to obtain profiles with a given longitudinal curvature or rectilinear with a deviation of not more than + \ - (1-2) mm \ m, by shifting the editing axis relative to the profiling axis, is achieved by the fact that the correct device contains a table mounted on the bed of the back stand, including the base of the welded structure, having symmetrically located vertical walls on which the main plates are mounted symmetrically on both sides, installed with the possibility of their vertical movement by means of lead screws, and additional plates fixed on them, mounted with the possibility of horizontal movement by means of adjusting screws, and on the additional plates, holders are installed, containing two pairs of axles each with regular rollers, made with the possibility of rotation in a vertical plane relative to the profiling axis by means of a worm gears and adjusting screws.

Description

The utility model relates to the processing of metals by pressure, in particular to equipment used for the production of bent thin-walled profiles, and can be used in the working stands of profile bending mills for the production of profiles of complex shape.

For the manufacture of bent sections of rolled products, mills are used containing a series of sequentially installed work stands, in which there are two parallel drive rolls, which form a gauge due to the insertion of working streams into them.

The closest technical solution in terms of the number of common essential features, the prototype may be the invention “Roll forming mill”, containing a number of stands mounted on the bed with shaped rolls driven by an electric drive, and an input guide device installed in front of the first stand and containing plates with grooves and fixed in these grooves are adjustable basic elements, while the first pair of rolls and at least one subsequent roll are provided with protrusions (SU N 611701 MKI: In 21 D 5/06 patent application N 2393040 / 25-27, 07.23.76, inventors G.A. Vereshchagin, V.D. Lyutov, V.L. Protopopov and others., Applicant Rostov-on-Don Scientific Research Institute of Engineering Technology, published in the newsletter N 23 from 05.26.78).

The disadvantages of the invention adopted for the prototype are:

- the worst technological capabilities of the profiling process, as it has a less wide range of adjustments for the position of the upper and lower shafts;

- does not allow to produce profiles with a large thickness of the material of the initial workpiece and the lack of a stable process of forming bent profiles;

- the complexity of the design of the stand and a small degree of maintainability.

The technical result of the claimed utility model:

- expanding the technological capabilities of the profiling process due to a wider range of adjustments to the position of the upper and lower shafts;

- the rigid construction of the stand allows you to produce profiles with a large thickness of the material of the original workpiece, a significant number of bending zones, while maintaining a high quality bent profile and a stable process of forming bent profiles;

- the simplicity of the stand design provides a high degree of maintainability.

The technical result of the claimed utility model is the elimination of these disadvantages.

The technical result of the claimed utility model is achieved by the fact that, in comparison with the invention, a roll forming mill adopted as a prototype comprising a row of stands with profiled rolls driven by an electric drive mounted on a bed and an input guide device installed in front of the first stand and containing plates with grooves and fixed in these grooves are adjustable basic elements, while the first pair of rolls and at least one subsequent are provided with protrusions, in the inventive utility model the tan is equipped with the correct device, installed behind the last profiling stand, and made with the possibility of shifting the axis of editing relative to the axis of profiling, the control panel of the bending mill, while the frame of the bending mill is made of at least two sections, including at least two profiling stands, and intermediate stands located between them and the aforementioned electric drive, each profiling stand is equipped with a locking earring mounted in the frame, mounted with one of the sides of the crate and the upper and lower sliders, mounted one above the other with a gap and fixed in the uprights on one side of the cage and on the locking earring on the other side of the cage, while the upper and lower shafts are driven and installed in the said sliders, mainly on rolling bearings, with the possibility of their vertical movement together with the sliders on the racks by means of lifting spindles located symmetrically relative to the cage body, mainly two, in its upper and lower parts, and the rolls of each pair of rolls mated to each other in caliber in each working stand of the roll forming mill are made of different widths and are equipped with compensating spacers of different widths, located on the lower shafts on both sides of the forming covering rolls in such a way that, together with the lower covering rolls, they form the constant uniform size of the total dimensional chain from the main axis of the profile to the installation base in each gauge of each stand of the roll forming mill, and the mentioned pairs of forming rolls in each the gauge of each stand of the roll forming mill is connected by end mating surfaces with a lock fit according to H 7 / h7 and is made with a constant lateral dimension of the vertical clearance in the caliber of each stand of the roll forming mill, and the caliber of each working stand of the multi-stand roll forming mill is closed around the entire perimeter of the work loop and with a horizontal arrangement of the edges of the profile is limited in width along the ends of the said deforming protrusions, and with a vertical arrangement of the edges of the profile are limited in Irina at the ends of the ledges.

In addition, an additional technical result, the ability to change the width of the profiled profile passing through the vertically arranged shafts of the intermediate stand during the profiling operation in the roll forming mill, as well as to bring the manufactured profile to the specified dimensions by means of technological equipment attached to the vertical shafts, is achieved by the fact that each said intermediate stand is provided with at least two sliders on which vertically arranged shafts are mounted, with equipped with technological equipment, including rollers, dies, etc., and the sliders are installed with the possibility of horizontal movement in grooves made in the housing of the intermediate stand.

In addition, an additional technical result, the ability to obtain profiles with a given longitudinal curvature or rectilinear with a deviation of not more than + \ - (1-2) mm \ m, by shifting the editing axis relative to the profiling axis, is achieved by the fact that the correct device contains a table mounted on the bed of the back stand, including the base of the welded structure, having symmetrically located vertical walls on which the main plates are mounted symmetrically on both sides, installed with the possibility of their vertical movement by means of lead screws, and additional plates fixed on them, mounted with the possibility of horizontal movement by means of adjusting screws, and on the additional plates, holders are installed, containing two pairs of axles each with regular rollers, made with the possibility of rotation in a vertical plane relative to the profiling axis by means of a worm gears and adjusting screws.

In addition, an additional technical result, the ability to move the guide rails of the guide device to adjust the throughput size, which is 0.2 mm greater than the width of the sheet stock is achieved by the fact that the said guide device is made of rigidly interconnected tables, racks and sidewalls attached to the end face of the aforementioned first stand and made with the possibility of vertical movement by means of spindles, and said adjustable base elements of the guide device Twa are made in the form of longitudinal, parallel to the table guide rails mounted on the table with the possibility of changing their width.

The utility model is illustrated by drawings:

Fig 1. General view of the roll forming mill, front view

Figure 2. Roll bending mill, top view.

Figure 3. Side bending mill.

Figure 4. The main components of the section roll forming mill, front view.

Figure 5 The main components of the section of the roll forming mill, top view.

6. The correct device of the roll forming mill, front view, with a cross section of the right side of the correct device.

7. The correct device roll forming mill, top view (section aa figure 6).

Fig. 8. Crate roll forming mill for continuous profiling, with mounted rolls on the shafts, general view.

Fig.9. Front stand of roll forming mill.

Figure 10. The intermediate stand of the roll forming mill, top view.

11. Kinematic diagram of a roll forming mill, top view.

Fig. 12. Front device of a roll forming mill mounted on a table.

Fig.13. Guide device roll forming mill mounted on the table, top view.

Fig.14. Correct bending mill device mounted on the table, front view.

Fig.15. The correct device roll forming mill installed on the table, top view.

The essence of the utility model roll forming mill.

Roll forming mill 1 (Figs. 1-3) is made of two sections 2 (Figs. 1, 2, 4, 5), including four profiling stands 4 mounted on the frame 3 (Fig. 1) and (Figs. 1-5) and located between them, three intermediate stands 5 (Fig.1-5, 9, 10). Roll forming mill 1 (Fig.1-3) contains a guiding device 6 (Fig.2, 9, 12, 13) and is equipped with a correct device 7 (Fig.1, 2, 6, 7, 14, 15) installed behind the last section 2 (FIGS. 1, 2, 4, 5), and made with the possibility of shifting the editing axis relative to the profiling axis 8 (FIG. 8), the control panel of the machine 9 (FIG. 2) and the electric drive in each section made separate and containing an electric motor 10 (Fig. 1, 4, 11) kinematically connected by means of a belt drive 11 (Fig. 1, 4, 11) with a gearbox 12 (1, 4, 11), gears 13 (Fig. 11), with a transfer case 14 ( 11) with gears 15 (11) installed in the transfer case 14 (11) and cardan shafts 16 (11), interacting with the working shafts of the main stands 4 (1, 2, 4).

The guide device 6 (Figs. 1, 2, 12, 13) is installed in front of the first section 2 (Figs. 1, 2, 4, 5), made of a table 17 which is rigidly interconnected (figs. 12, 13), racks 18 ( 12) and sidewalls 19 (FIG. 12) attached to the end of the first section 2 (FIGS. 1, 2). In the grooves 20 (Fig. 12) of the table 17 (Figs. 12, 13), adjustable base elements 21 are installed (Figs. 12, 13), fixed by screws 22 (Figs. 12, 13). Tables 17 (Fig.12, 13) are made with the possibility of vertical movement by means of spindles 23 (Fig.1). Adjustable base elements 21 (Fig. 12, 13) of the guide device 6 (Fig. 1, 2, 12, 13) are made in the form of longitudinal, parallel to the table 17 (Fig. 12, 13) guide strips mounted with the possibility of changing the distance between them.

The profile stand 4 (FIGS. 1-5) of the roll forming mill for continuous profiling, comprises a frame 24 (FIG. 8) and a stand 25 (FIG. 8). On the stoics 25 (Fig. 8), the upper slider 26 (Fig. 8) and the lower slider 27 (Fig. 8) are fixed, moving one above the other, with a gap. In the upper slider 26 (Fig. 8) and the lower slider 27 (Fig. 8), the upper shaft 29 (Fig. 8) and the lower shaft 30 (Fig. 8) are fixed on the rolling bearings 28 (Fig. 8). The upper shaft 29 (Fig. 8) and the lower shaft 30 (Fig. 8) are driven. The movement of the upper slider 26 (Fig. 8) along the uprights 25 (Fig. 8) in the vertical plane together with the upper shaft 29 (Fig. 8) is carried out by the rotation of the lifting spindle 31 (Fig. 8), and the movement of the lower slider 28 (Fig. 8) on the stands 26 (Fig. 8) in a vertical plane together with the lower shaft 30 (Fig. 8), is carried out by rotation of the lifting spindle 32 (Fig. 8). Lifting propellers 31 and 32 (Fig. 8) are located

symmetrically with respect to the body of the profiling stand 4 (Fig. 8), two in its upper and lower parts On the upper shaft 29 (Fig. 8), an upper roll 33 (Fig. 8) with working surfaces is installed, and on the lower shaft 30 (Fig. 8) ), a lower roll 34 (Fig. 8) is installed with working surfaces and compensating spacer sleeves 35 (Fig. 8) placed on the lower shaft 30 (Fig. 8) on both sides of the forming covering rolls 34 (Fig. 8). The upper rollers 33 (Fig. 8) and lower 34 (Fig. 8) are mounted one above the other with a gap. The profile stand 4 (Fig. 8) is equipped with a locking earring 36 (Fig. 8) mounted on one side of the stand 4 (Fig. 8). The closing earring 36 (Fig. 8) contains a frame 24 (Fig. 8) and a stand 25 (Fig. 8). On the uprights 25 (Fig. 8), the upper slider 26 (Fig. 8) and the lower slider 27 of Fig. 8) are fixed, moving one above the other with a gap. In the sliders upper 26 (Fig. 8) and lower 27 (Fig. 8), the upper shaft 29 (Fig. 8) and the lower shaft 30 (Fig. 8) are mounted on the rolling bearings 28 (Fig. 8). The locking earring 36 (Fig. 8) is installed in the guide 37 (Fig. 8) made in the frame 24 (Fig. 8), with the possibility of free movement along it in the direction perpendicular to the axis of profiling 8 (Fig. 8). The adjustment of the movement of the upper slider 26 (Fig. 8), with the upper shaft 29 fixed therein (Fig. 8) in the locking earring 36 (Fig. 8) and the lower slider 27 (Fig. 8), with the lower shaft 30 fixed therein ( figure 1, 2), in the locking earring 36 (figure 8) is carried out by means of a lead screw 38 (figure 8). Each intermediate stand 5 (Figs. 9, 10) is equipped with two sliders 39 (Fig. 10), on which vertically arranged axes 40 (Figs. 9, 10) are mounted, with technological equipment mounted on them (not shown), including rollers, dies, etc., with the sliders 39 (FIGS. 9, 10) mounted for horizontal movement in grooves 41 (FIGS. 9, 10) made in the housing of the intermediate stand 5 (FIGS. 1-5). The connection of the upper 33 (Fig. 8) and lower 34 (Fig. 8) rolls into the lock provides uniform lateral gaps in the caliber when profiling the profile 43 (Fig. 8) and eliminates the possibility of displacement of the upper 33 (Fig. 8) and the lower rolls 34 ( Fig. 8) in the axial direction. Four stop screws are mounted in the body of the profile stand 4 (Figs. 1-5), two stop screws (not shown in the drawing) two on the upper slider 26 (Fig. 8) and two stop screws 44 (Fig. 8) on the lower slider 27 (Fig. 8). The upper thrust screws are installed with the possibility of locking the upper sliders 26 (Fig. 8) when moving along the struts 25 (Fig. 8) in a vertical plane. The stop screws 44 (Fig. 8) are installed with the possibility of locking the lower sliders 26 (Fig. 8) when moving along the struts 25 (Fig. 8) in a vertical plane.

The correct device 7 (figure 1, 2, 6, 7, 14, 15) roll forming mill

1 (figure 1, 2) contains a table 45 (figure 1, 2, 14, 15) mounted on a bed 3 (figure 1) of the second section 2 (figure 1, 2), including a base 46 (figure 6 , 7, 14, 15) of a welded structure, on a vertical wall (not shown) of which the main plates 47 (Figs. 6, 14, 15) are mounted symmetrically on both sides, mounted with the possibility of their vertical movement by means of spindles 48 (Fig. .6, 14), and additional plates 49 attached to them (FIG. 6), mounted for horizontal movement by means of adjusting screws 50 (FIG. 7). On additional plates 49 (FIG. 6,), clips 51 (FIG. 6) are installed, each containing two pairs of axles 52 (FIG. 6). On the axes 52 (FIG. 6), the correct rollers 53 (FIG. 7) are located, rotatable in a vertical plane relative to the profiling axis 8 (FIG. 8) by means of a worm gear 54 (FIG. 7) and adjusting screws 55 (FIG. 7). The rolls 33 (Fig. 8) and 34 (Fig. 8), interconnected by caliber, are connected by the end mating surfaces of the “lock” landings according to H 7 / h7, and they are also made closed around the entire perimeter of the working circuit of stand 4 (Fig. 4) , 5) and with a horizontal arrangement of the edges of the profile 43 (Fig.8) are limited at the ends of the protrusions 56 (Fig.8), and with a vertical arrangement of the edges of the profile are limited at the ends of the ledges (not shown).

The profile 43 is formed in stand 4 of the roll forming mill by folding the shelves and side walls. The side walls of the profile 43 in the working stand 4 of the multi-stand roll forming mill 1 are bent by applying to them the forces from the rolls 33, 34 from the outside of the profile 43 at the entrance to the rolls 33, 34 by the guiding protrusions 56 of the lower roll 34 and by applying forces to ends and from the inside, along the edges of the lower roll 34 compensating spacer sleeves 35 limits the bias of the bending elements in two directions, namely, horizontally - to the main axis of profiling 8 profile 43, and vertically - to the axis of the roll 34, thereby preventing the lateral displacement in the caliber profile 43 during the molding process in a continuous profiling. Moreover, with continuous profiling, the centering of the profile 43 in the working stand 4 is carried out simultaneously at the entrance to the rollers 33, 34 with the guiding protrusions 56, and with ledges (not shown) in the vertical arrangement of the edges of the profile 43. The correct device 7 installed behind the last section allows displacement of the editing axis relative to the profiling axis 8 to obtain profiles 43 with a given longitudinal curvature and rectilinear with deviations of not more than (1-2) mm \ m. The rolls 33, 34 of the working stand 4 of the multi-stand roll forming mill, which are claimed in the utility model, serve for the production of profiles 35

complex cross-section, conjugated to each other in caliber, formed by the working streams of the rolls 33, 34 and limited on the ends of the guiding protrusions 56 and ledges (not shown) allow to obtain a straight profile and stabilize the forming process.

In addition, the claimed utility model allows to obtain a technical result - simplifying the work of stand 4 of the roll forming mill for continuous profiling and reducing the conversion time to another profile size 35 due to the fact that the locking earring 36 is made with the possibility of free movement along the guides 37 in the base 24 in the direction perpendicular to the axis of profiling 8.

Claims (4)

1. Roll forming mill containing a number of stands mounted on the bed with profiled rolls driven by an electric drive, and an input guide device installed in front of the first stand and containing plates with grooves and adjustable base elements fixed in these grooves, the first pair of rolls and, according to at least one subsequent one is provided with protrusions, characterized in that the roll forming mill is equipped with a correct device installed behind the last profiling stand and configured to offset the axis edits relative to the axis of profiling by the control panel of the roll forming mill, while the bed of the roll forming mill is made of at least two sections, each comprising at least two profiling stands, and intermediate stands and said electric drive located between them, each profiling stand equipped with a locking earring installed in the frame, mounted on one side of the stand and sliders, upper and lower, mounted one above the other with a gap and fixed in racks on one side the stands and on the locking earring on the other side of the stand, while the upper and lower shafts are driven and installed in the said sliders, mainly on the rolling bearings, with the possibility of their vertical movement along with the sliders on the stands by lifting spindles located symmetrically relative to the stand body mainly two, in its upper and lower parts, and the lower rolls of each pair of mating rolls mated to each other in each working stand of the roll forming mill are made different widths and are equipped with compensating expansion spacers of different widths, located on the lower shafts on both sides of the forming covering rolls in such a way that together with the lower covering rolls, they form a constant uniform size of the total dimensional chain from the main axis of the profile to the mounting base in each gauge of each roll forming cage the mill, and the aforementioned pairs of forming rolls in each gauge of each stand of the profile bending mill are connected by end mating surfaces by a "lock" fit according to H 7 / h7 and s with a constant lateral size of the vertical gap in the caliber of each stand of the roll forming mill, and the caliber of each working stand of the multi-stand roll forming mill is closed around the entire perimeter of the working contour and, when the edges of the profile are horizontal, the said deforming protrusions are limited in width along the ends, and when the edges of the profile are vertical limited in width along the ends of the ledges. 2. The roll forming mill according to claim 1, characterized in that each said intermediate stand is equipped with at least two sliders, on which vertically arranged shafts are mounted, with technological equipment mounted on them, including rollers, dies, etc., with sliders installed with the possibility of horizontal movement in the grooves made in the housing of the intermediate stand. 3. The roll forming mill according to claim 1, characterized in that the correct device comprises a table mounted on the bed of the rear stand, including a welded structure base having symmetrically arranged vertical walls on which main plates are mounted symmetrically on both sides, mounted with the possibility of their vertical movements by means of lead screws, and additional plates fixed to them, mounted with the possibility of horizontal movement by means of adjusting screws, moreover, on an additional Holders are equipped with clips containing two pairs of axles each with regular rollers, made with the possibility of rotation in a vertical plane relative to the axis of profiling by means of a worm gear and adjusting screws. 4. The mill according to claims 1 to 3, characterized in that the said guide device is made of rigidly interconnected tables, racks and sidewalls attached to the end face of the said first stand and made with the possibility of vertical movement by means of screw screws, and said adjustable base elements the guide device is made in the form of longitudinal, parallel to the table guide rails mounted on the table with the possibility of changing their width.