Eccentric stripping mechanism for precise strip splitting machine

Abstract

The invention belongs to the technical field of precise metal strip dividing and cutting machines, and discloses an eccentric stripping mechanism for a precise strip dividing and cutting machine, which comprises a fixed memorial archway and a movable memorial archway, a lower cutter shaft and an upper cutter shaft are arranged between the fixed memorial archway and the movable memorial archway, and an eccentric stripping mechanism is further arranged between the fixed memorial archway and the movable memorial archway. When strips with different thicknesses are slit, the eccentric position of the upper stripping ring is changed by adjusting the heights of the first outlet compression roller and the first inlet compression roller on the two sides of the upper stripping ring through the adjustment mechanism under the cooperation of the lower blade; or the eccentric position of the lower stripping ring is changed by adjusting the left and right positions of the second outlet compression roller and the second inlet compression roller on the two sides of the lower stripping ring through the adjusting mechanism under the cooperation of the upper blade. When the upper cutter shaft and the lower cutter shaft rotate for slitting, the eccentric stripping ring can form radial thrust at the slitting moment of the strip, the cut narrow strip is forcibly stripped from the surfaces of the blade and the cutter pad, and the problems of'cutter sticking ', 'flanging and burr' and'scratching of the surface of the strip 'are thoroughly solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of precision metal strip cutting machine, in particular to an eccentric stripping mechanism for precision strip cutting machine. BACKGROUND

[0002] In the cutting processing of precision metal strip (such as noble metal foil, soft non-ferrous metal strip and composite strip, etc.), the cutting machine needs to cut the wide strip into multiple narrow strips according to the preset size. The existing stripping structure of the cutting machine is usually provided with conventional rubber ring stripping or rubber strip stripping. After the strip is cut, the narrow strip after cutting is easily adhered to the surface of the blade or the blade pad due to the tension fluctuation of the strip, the residual adhesive material on the blade edge or the elongation of the strip itself, resulting in the phenomena of "sticking blade", "flashing burr" and "scratching the surface of the strip".

[0003] At present, the existing mode of domestic equipment is to install rubber rings or horizontal rubber strips with the same size as the blade between the blades to separate the strip from the cutting edge. Since the rubber ring is too narrow and lacks elasticity, or the elasticity is greatly different due to the influence of air temperature, the use is unstable. The rubber strip stripping cannot achieve the desired effect for the finished strip with a width of less than 5mm, and it will scratch the surface of the strip when cutting the precision soft strip. SUMMARY

[0004] The purpose of the present application is to provide an eccentric stripping mechanism for precision strip cutting machine to solve the problems in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme:

[0006] The eccentric stripping mechanism for precision strip cutting machine comprises a base, the surface of the base is symmetrically provided with a fixed pavilion and a movable pavilion, a lower blade shaft and an upper blade shaft are arranged between the fixed pavilion and the movable pavilion, a plurality of lower blades, lower blade pads and lower stripping rings are arranged on the surface of the lower blade shaft; a plurality of upper blades, upper blade pads and upper stripping rings are arranged on the surface of the upper blade shaft, the upper blades and the lower blades are arranged in interlocking engagement with each other.

[0007] An eccentric stripping mechanism is further arranged between the fixed pavilion and the movable pavilion, the eccentric stripping mechanism comprises a rotating support and a supporting seat which are symmetrically arranged on the surface of the base, a rack is movably connected to the rotating support, a second inlet pressure roller is arranged between the supporting seats, a second outlet pressure roller, a first outlet pressure roller and a first inlet pressure roller are arranged between the racks, and the two ends of the second inlet pressure roller, the second outlet pressure roller, the first outlet pressure roller and the first inlet pressure roller are respectively connected to the supporting seats and the racks through adjusting mechanisms.

[0008] Further preferably, a plurality of lower blades are arranged on the surface of the lower blade shaft, a lower blade pad is arranged between adjacent lower blades, and a lower stripping ring is eccentrically arranged outside the lower blade pad.

[0009] The upper blade shaft surface is provided with a plurality of upper blades, and an upper stripper ring is arranged outside the upper blade pad.

[0010] The upper blade and the lower stripper ring are in the same straight line in the radial direction of the upper blade shaft, and the lower blade and the upper stripper ring are in the same straight line in the radial direction of the lower blade shaft.

[0011] Further preferably, the rack includes a column connected to the rotating support in an L-shaped structure, and a plurality of pull rods are arranged between the columns.

[0012] Further preferably, the second outlet pressure roller is arranged between the long sides of the two columns, the second outlet pressure roller and the second inlet pressure roller are in the same horizontal position, and the second outlet pressure roller and the second inlet pressure roller are arranged on both sides of the lower stripper ring respectively.

[0013] The first outlet pressure roller and the first inlet pressure roller are arranged between the short sides of the two columns, and the first outlet pressure roller and the first inlet pressure roller are arranged on both sides of the upper stripper ring respectively.

[0014] Further preferably, the column and the rotating support are connected by a pin shaft, and the end of the column away from the rotating support is connected to a fixed or movable roof by a stop block.

[0015] Further preferably, the adjusting mechanism includes a fixed support symmetrically arranged between the columns or support seats, a gear box is connected to the bottom of the fixed support, a plurality of bevel gears are arranged inside the gear box and mesh with each other, a transmission main shaft is arranged between the bevel gears parallel to the axis of the upper blade shaft or the lower blade shaft, and a first adjusting lead screw and a second adjusting lead screw are respectively connected to the center of the bevel gears perpendicular to the axis of the upper blade shaft or the lower blade shaft and penetrate the fixed support.

[0016] Further preferably, a nut is arranged at the connection between the first adjusting lead screw and the second adjusting lead screw and the top of the fixed support, and the first adjusting lead screw and the second adjusting lead screw are respectively screwed into the nuts on the top of the corresponding fixed support.

[0017] Further preferably, when the fixed support is arranged between the two support seats, a second inlet pressure roller is rotatably connected to the outside of the transmission main shaft, and the first adjusting lead screw and the second adjusting lead screw are used to adjust the left and right positions of the second inlet pressure roller.

[0018] Further preferably, when the fixed support is arranged between the long sides of the two columns, a second outlet pressure roller is rotatably connected to the outside of the transmission main shaft, and the first adjusting lead screw and the second adjusting lead screw are used to adjust the left and right positions of the second outlet pressure roller.

[0019] Further preferably, when two groups of the fixed supports are arranged between the short sides of the two upright columns, the two transmission main shafts are respectively rotatably connected with a first outlet pressure roller and a first inlet pressure roller, and the two groups of the first adjusting lead screws and the second adjusting lead screws are respectively used for adjusting the up-down positions of the first outlet pressure roller and the first inlet pressure roller.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] The upper stripper ring and the upper knife pad are eccentrically arranged, the lower stripper ring and the lower knife pad are eccentrically arranged, and the upper blade and the lower stripper ring and the lower blade and the upper stripper ring are radially collinear. When the upper and lower knife shafts rotate for slitting, the eccentric stripper ring can form a radial thrust at the moment of slitting the strip, forcibly stripping the narrow strip after cutting from the surface of the blade and the knife pad, completely solving the problems of "sticking knife", "flashing burr" and "scratching the surface of the strip", and the success rate of stripping is increased to more than 99%. The finished strip after slitting moves in a straight line in the horizontal direction after extrusion, the eccentric stripper ring rotates with the strip and does not scratch the surface of the strip, so that the most ideal finished strip quality is obtained.

[0022] Meanwhile, when slitting the strip of different thicknesses, the height of the first outlet pressure roller and the first inlet pressure roller on both sides of the upper stripper ring can be adjusted through the adjusting mechanism, and then the eccentric position of the upper stripper ring is changed under the cooperation of the lower blade; or the left-right position of the second outlet pressure roller and the second inlet pressure roller on both sides of the lower stripper ring is adjusted through the adjusting mechanism, and then the eccentric position of the lower stripper ring is changed under the cooperation of the upper blade; so as to meet the slitting work of the strip of different thicknesses. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0024] Figure 2 It is a side view of the overall structure of the present application;

[0025] Figure 3 It is a schematic diagram of the eccentric stripping mechanism structure of the present application;

[0026] Figure 4 It is a side view of the eccentric stripping mechanism structure of the present application;

[0027] Figure 5 It is a top view of the rack structure of the present application;

[0028] In the figure: 1, lower knife shaft; 2, upper knife shaft; 3, upper blade; 4, upper knife pad; 5, upper stripper ring; 6, lower blade; 7, lower knife pad; 8, lower stripper ring; 9, first outlet compression roller; 10, first inlet compression roller; 11, second outlet compression roller; 12, second inlet compression roller; 13, support seat; 14, pull rod; 15, rack; 16, first adjusting screw; 17, pin shaft; 18, rotating support; 19, second adjusting screw; 20, nut; 21, fixed support; 22, gear box; 23, bevel gear; 24, transmission main shaft; 25, stop block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] Please refer to Figures 1-5 The present application provides a technical solution:

[0031] The eccentric stripper mechanism for the precision strip cutting machine comprises a base, fixed and movable arches are symmetrically arranged on the surface of the base, a lower knife shaft 1 and an upper knife shaft 2 are arranged between the fixed and movable arches, a plurality of lower blades 6, lower knife pads 7 and lower stripper rings 8 are arranged on the surface of the lower knife shaft 1, a plurality of upper blades 3, upper knife pads 4 and upper stripper rings 5 are arranged on the surface of the upper knife shaft 2, and the upper blades 3 and the lower blades 6 are arranged in interlaced engagement with each other.

[0032] An eccentric stripper mechanism is further arranged between the fixed and movable arches, the eccentric stripper mechanism comprises rotating supports 18 and support seats 13 which are symmetrically arranged on the surface of the base, a rack 15 is movably connected to the rotating supports 18, a second inlet compression roller 12 is arranged between the support seats 13, a second outlet compression roller 11, a first outlet compression roller 9 and a first inlet compression roller 10 are arranged between the rack 15, and the two ends of the second inlet compression roller 12, the second outlet compression roller 11, the first outlet compression roller 9 and the first inlet compression roller 10 are respectively connected to the support seats 13 and the rack 15 through adjusting mechanisms.

[0033] In the present application, a plurality of lower blades 6 are arranged on the surface of the lower knife shaft 1, a lower knife pad 7 is arranged between adjacent lower blades 6, and a lower stripper ring 8 is eccentrically arranged outside the lower knife pad 7.

[0034] A plurality of upper blades 3 are arranged on the surface of the upper knife shaft 2, an upper knife pad 4 is arranged between adjacent upper blades 3, and an upper stripper ring 5 is eccentrically arranged outside the upper knife pad 4.

[0035] The upper blade 3 and the lower stripper ring 8 are in the same straight line in the radial direction of the upper blade shaft 2, and the lower blade 6 and the upper stripper ring 5 are in the same straight line in the radial direction of the lower blade shaft 1.

[0036] In the application, the frame 15 comprises L-shaped columns connected to the rotating support 18, and a plurality of pull rods 14 are arranged between the columns. The second outlet pressure roller 11 is arranged between the long sides of the two columns, and the second outlet pressure roller 11 and the second inlet pressure roller 12 are in the same horizontal position, and the second outlet pressure roller 11 and the second inlet pressure roller 12 are arranged on the two sides of the lower stripper ring 8 respectively. The first outlet pressure roller 9 and the first inlet pressure roller 10 are arranged between the short sides of the two columns, and the first outlet pressure roller 9 and the first inlet pressure roller 10 are arranged on the two sides of the upper stripper ring 5 respectively.

[0037] In the application, the columns are movably connected to the rotating support 18 through the pin shaft 17, which facilitates the rotation of the frame 15 during tool replacement and reserves sufficient tool replacement space. The end of the column away from the rotating support 18 is connected to the fixed or movable roof through the stop block 25. The stop block 25 and the column on both sides, the fixed roof and the movable roof are fixedly connected together through the fixing bolts, so that the eccentric stripper mechanism has good stability during use.

[0038] In the application, the adjusting mechanism comprises fixed supports 21 symmetrically arranged between the columns or the support seats 13, the fixed supports 21 are connected with gear boxes 22 at the bottom, the gear boxes 22 are internally provided with intermeshing bevel gears 23, the bevel gears 23 parallel to the axis of the upper blade shaft 2 or the lower blade shaft 1 are provided with transmission main shafts 24, the transmission main shafts 24 penetrate the gear boxes 22 in the horizontal direction, and the transmission main shafts 24 are provided with bearings at the connection positions with the gear boxes 22. The bevel gears 23 perpendicular to the axis of the upper blade shaft 2 or the lower blade shaft 1 are respectively penetrated by the first adjusting lead screws 16 and the second adjusting lead screws 19 at the centers. The first adjusting lead screws 16 and the second adjusting lead screws 19 are provided with nuts 20 at the connection positions with the top of the fixed supports 21, and the first adjusting lead screws 16 and the second adjusting lead screws 19 are respectively screwed into the corresponding nuts 20 at the top of the fixed supports 21.

[0039] In the application, when the fixed supports 21 are arranged between the two support seats 13, the second inlet pressure roller 12 is rotatably connected to the outside of the transmission main shaft 24, and the first adjusting lead screw 16 and the second adjusting lead screw 19 are used to adjust the left and right positions of the second inlet pressure roller 12.

[0040] When the fixed supports 21 are arranged between the long sides of the two columns, the second outlet pressure roller 11 is rotatably connected to the outside of the transmission main shaft 24, and the first adjusting lead screw 16 and the second adjusting lead screw 19 are used to adjust the left and right positions of the second outlet pressure roller 11.

[0041] When the two sets of fixed supports 21 are arranged between the short sides of the two columns, the two transmission main shafts 24 are respectively rotatably connected with the first outlet pressure roller 9 and the first inlet pressure roller 10, and the two sets of first adjusting lead screws 16 and second adjusting lead screws 19 are respectively used for adjusting the up-down positions of the first outlet pressure roller 9 and the first inlet pressure roller 10.

[0042] In use, first, the thickness of the strip to be slitting is determined, and the eccentric positions of the upper stripper ring 5 and the lower stripper ring 8 are adjusted by the adjusting mechanism according to the thickness of the strip. When adjusting the position of the upper stripper ring 5, the height of the first outlet pressure roller 9 and the first inlet pressure roller 10 is adjusted by the first adjusting lead screw 16 or the second adjusting lead screw 19 connected at both ends of the first outlet pressure roller 9 and the first inlet pressure roller 10, and the position of the lower blade 6 is matched to realize three-point positioning, and the eccentric position of the upper stripper ring 5 is adjusted. Taking the adjustment of the up-down position of the first outlet pressure roller 9 as an example, by rotating any one of the first adjusting lead screw 16 or the second adjusting lead screw 19, the other end of the first adjusting lead screw 16 or the second adjusting lead screw 19 is driven to rotate synchronously under the action of the intermeshing bevel gears 23 and the transmission main shaft 24, so as to ensure that the first outlet pressure roller 9 moves horizontally upward or downward. Similarly, the adjustment mode of the first inlet pressure roller 10 is the same as that of the first outlet pressure roller 9, and the adjustment mode of the left-right position of the second outlet pressure roller 11 and the second inlet pressure roller 12 is also the same as that of the first outlet pressure roller 9. The only difference is that the upper stripper ring 8 is realized three-point positioning by the second outlet pressure roller 11 and the second inlet pressure roller 12 cooperating with the upper blade 3, so as to achieve the effect of adjusting the eccentric position of the lower stripper ring 8.

[0043] After the adjustment is completed, in the slitting process, the upper stripper ring 5 and the lower stripper ring 8 are eccentrically arranged with the upper blade pad 4 and the lower blade pad 7, and the upper blade 3 and the lower stripper ring 8, and the lower blade 6 and the upper stripper ring 5 are radially collinear. When the upper blade shaft 2 and the lower blade shaft 1 rotate in opposite directions to slit, the upper stripper ring 5 and the lower stripper ring 8 can form a radial thrust at the moment of slitting the strip, forcibly stripping the narrow strip after cutting from the surface of the upper blade 3 and the lower stripper ring 8, or the lower blade 6 and the upper stripper ring 5, completely solving the problems of "sticking knife", "flashing burr" and "scratching the surface of the strip", and the success rate of stripping is improved to more than 99%. The finished strip after slitting moves in a straight line in the horizontal direction after extrusion, the upper stripper ring 5 and the lower stripper ring 8 rotate with the strip, and the surface of the strip is not scratched, so that the most ideal finished strip quality is obtained.

[0044] When the upper blade 3 and the lower blade 6 corresponding to different widths of the strip need to be replaced before slitting, first, the stop block 25 connecting the columns of the rack 15 with the fixed and movable arches is removed, and then the rack 15 is rotated in the direction of the strip slitting under the action of the pin shaft 17, so that the rack 15 is separated from the positions of the upper blade 3 and the lower blade 6, ensuring the space for replacing the blades and avoiding collision when replacing the blades.

[0045] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The presently disclosed embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein and are part of the invention. Any reference signs in the claims should not be construed as limiting the scope of the claims.

[0046] The above description is only preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent substitutions or changes according to the technical solutions and inventive concepts of the present application within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An eccentric stripping mechanism for a precision strip cutting machine, comprising a base, a fixed roof and a movable roof symmetrically arranged on the surface of the base, a lower blade shaft (1) and an upper blade shaft (2) arranged between the fixed roof and the movable roof, characterized in that: The lower blade shaft (1) is provided with a plurality of lower blades (6), lower blade pads (7) and lower stripper rings (8); the upper blade shaft (2) is provided with a plurality of upper blades (3), upper blade pads (4) and upper stripper rings (5), and the upper blades (3) and the lower blades (6) are staggered and engaged with each other. The eccentric stripper mechanism is further arranged between the fixed and movable arches, and comprises rotating supports (18) and supporting seats (13) symmetrically arranged on the surface of the base, a rack (15) movably connected to the rotating supports (18), a second inlet pressure roller (12) arranged between the supporting seats (13), a second outlet pressure roller (11), a first outlet pressure roller (9) and a first inlet pressure roller (10) arranged between the rack (15), and the second inlet pressure roller (12), the second outlet pressure roller (11), the first outlet pressure roller (9) and the first inlet pressure roller (10) are connected to the supporting seats (13) and the rack (15) through adjusting mechanisms at both ends respectively.

2. The eccentric stripper mechanism for precision strip stock slitting machine as claimed in claim 1, wherein: The lower blade shaft (1) is provided with a plurality of lower blades (6), and the adjacent lower blades (6) are provided with lower blade pads (7), and the lower blade pads (7) are eccentrically provided with lower stripper rings (8) outside. The upper blade shaft (2) is provided with a plurality of upper blades (3), and the adjacent upper blades (3) are provided with upper blade pads (4), and the upper blade pads (4) are eccentrically provided with upper stripper rings (5) outside. The upper blades (3) and the lower stripper rings (8) are in the same straight line in the radial direction of the upper blade shaft (2), and the lower blades (6) and the upper stripper rings (5) are in the same straight line in the radial direction of the lower blade shaft (1).

3. The eccentric stripper mechanism for precision strip stock slitting machine as claimed in claim 1 wherein: The rack (15) comprises L-shaped columns connected to the rotating supports (18), and a plurality of pull rods (14) are arranged between the columns.

4. The eccentric stripper mechanism for precision strip stock slitting machine as claimed in claim 3 wherein: The second outlet pressure roller (11) is arranged between the long sides of the two columns, the second outlet pressure roller (11) and the second inlet pressure roller (12) are in the same horizontal position, and the second outlet pressure roller (11) and the second inlet pressure roller (12) are arranged on both sides of the lower stripper ring (8) respectively. The first outlet pressure roller (9) and the first inlet pressure roller (10) are arranged between the short sides of the two columns, and the first outlet pressure roller (9) and the first inlet pressure roller (10) are arranged on both sides of the upper stripper ring (5) respectively.

5. The eccentric stripper mechanism for precision strip stock slitting machine as claimed in claim 3 wherein: The columns are movably connected to the rotating supports (18) through pins (17), and one end of the column away from the rotating support (18) is connected to the fixed or movable arch through a stop block (25).

6. The eccentric stripper mechanism for precision strip stock slitting machine as claimed in claim 3 wherein: The adjusting mechanism comprises fixed supports (21) symmetrically arranged between the columns or the supporting seats (13), the bottom of the fixed supports (21) is connected with gear boxes (22), the gear boxes (22) are internally provided with mutually meshing bevel gears (23), the bevel gears (23) parallel to the axes of the upper blade shaft (2) or the lower blade shaft (1) are provided with transmission main shafts (24) therebetween, and the bevel gears (23) perpendicular to the axes of the upper blade shaft (2) or the lower blade shaft (1) are respectively penetrated by first adjusting lead screws (16) and second adjusting lead screws (19) at the centers thereof and connected with the fixed supports (21).

7. The eccentric stripper mechanism for precision strip stock slitting machine as claimed in claim 6 wherein: The first adjusting lead screws (16) and the second adjusting lead screws (19) are respectively screwed into the nuts (20) on the top of the corresponding fixed supports (21).

8. The eccentric stripper mechanism for precision strip stock slitting machine as claimed in claim 6 wherein: When the fixed supports (21) are arranged between the two supporting seats (13), the second inlet compression roller (12) is rotatably connected to the outside of the transmission main shaft (24), and the first adjusting lead screws (16) and the second adjusting lead screws (19) are used for adjusting the left-right positions of the second inlet compression roller (12).

9. The eccentric stripper mechanism for precision strip stock slitting machine as claimed in claim 6 wherein: When the fixed supports (21) are arranged between the long sides of the two columns, the second outlet compression roller (11) is rotatably connected to the outside of the transmission main shaft (24), and the first adjusting lead screws (16) and the second adjusting lead screws (19) are used for adjusting the left-right positions of the second outlet compression roller (11).

10. The eccentric stripper mechanism for precision strip stock slitting machine as claimed in claim 6 wherein: When two groups of the fixed supports (21) are arranged between the short sides of the two columns, the first outlet compression roller (9) and the first inlet compression roller (10) are rotatably connected to the outside of the two transmission main shafts (24) respectively, and the two groups of the first adjusting lead screws (16) and the second adjusting lead screws (19) are respectively used for adjusting the up-down positions of the first outlet compression roller (9) and the first inlet compression roller (10).

Images