CN217192919U

CN217192919U - Double-cutter-shaft slitting mechanism for non-ferrous metal sheets

Info

Publication number: CN217192919U
Application number: CN202221019757.1U
Authority: CN
Inventors: 王良辉; 王炳盛; 赖赠涛
Original assignee: Fujian Nanlv Strip Processing Co ltd
Current assignee: Fujian Nanlv Strip Processing Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-16
Anticipated expiration: 2032-04-29

Abstract

The utility model provides a double-cutter shaft slitting mechanism for non-ferrous metal sheets, which comprises at least one shearing structure of two cutter shaft mechanisms which are respectively arranged in front and at back; each cutter shaft mechanism comprises a left bearing seat, a right bearing seat and cutter shafts, and the two cutter shafts are arranged in parallel; the two sets of cutter shaft mechanisms can be close to or far away from each other; each shearing structure comprises a male knife and a female knife which can be mutually sheared and matched when the two cutter shaft mechanisms are close to each other, and the male knife and the female knife in each shearing structure are respectively positioned on the two cutter shafts; elastic blocks are arranged between the two left side bearing seats and between the two right side bearing seats, and when the male knife is in shearing fit with the female knife, the elastic blocks are in collision with the two bearing seats positioned on the front side and the rear side of the elastic blocks and are deformed to a certain extent under the extrusion action of the two bearing seats on the front side and the rear side. The utility model discloses can reduce the radial runout when the arbor moves, effectively improve the problem of defects such as burr or fold appear easily.

Description

Double-cutter-shaft slitting mechanism for non-ferrous metal sheets

Technical Field

The utility model relates to a non ferrous metal processing equipment field especially relates to a mechanism is cut to double knives axle of non ferrous metal sheet.

Background

Due to the structural advantages of the blade battery, the hot runaway nightmare possibly occurring when the traditional power battery is used for the acupuncture penetration test is thoroughly eliminated, the safety standard of the new energy automobile is redefined, and the global power battery safety new altitude is led. However, the blade type battery case also puts a strict requirement on the product quality of the aluminum alloy coiled material for manufacturing the blade type battery case, and puts a stricter requirement on the control of the quality of cut edges (camber and cut edge burrs) of the aluminum alloy coiled material after slitting besides general mechanical properties and surface quality, and particularly, the camber after slitting affects the welding quality and air tightness after forming. The existing non-ferrous metal coil slitting production line generally comprises an uncoiler, an uncoiling tensioning roller mechanism, slitting equipment and a coiler which are sequentially arranged along the production line direction. The aluminum alloy slitting coil manufactured by the existing nonferrous metal coiled material slitting production line often has the defects of burrs, folds and the like, and the requirement of the blade battery on the slitting quality is difficult to meet. Therefore, a solution to the problem that the above aluminum alloy slit coil is prone to have defects such as burrs or wrinkles is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mechanism is cut to non ferrous metal sheet's double knives axle, its radial runout when can reducing the arbor operation effectively improves the problem that defects such as burr or fold appear easily in the coiled material is cut to non ferrous metal aluminum alloy.

A double-cutter shaft slitting mechanism for non-ferrous metal sheets comprises two cutter shaft mechanisms and at least one shearing mechanism, wherein the two cutter shaft mechanisms are respectively arranged in front and at back; each set of cutter shaft mechanism comprises a left side bearing seat, a right side bearing seat and cutter shafts erected between the left side bearing seat and the right side bearing seat, and the two cutter shafts are arranged in parallel; at least one of the two sets of cutter shaft mechanisms can reciprocate in the front-rear direction to realize that the two sets of cutter shaft mechanisms are close to or far away from each other; each shearing structure comprises a male knife and a female knife which can be mutually sheared and matched when the two cutter shaft mechanisms are close to each other, the male knife in each shearing structure is positioned on any one of the two cutter shafts, and the female knife in each shearing structure is positioned on the other one of the two cutter shafts; elastic blocks are respectively arranged between the left side bearing seats and the right side bearing seats, and when the male knife is in shearing fit with the female knife, the elastic blocks are abutted against the two bearing seats positioned on the front side and the rear side of the elastic blocks and deform to a certain extent under the extrusion action of the two bearing seats on the front side and the rear side.

The utility model discloses a setting of elastic block can reduce the radial runout of arbor when in the front and back direction operation improves the strip and cuts the quality, reduces the production of burr or fold.

Further, a width of the elastic block in a front-rear direction (a distance between the front and rear bearing blocks in the front-rear direction when the male blade and the female blade are in shear engagement) is 1 to 2 mm.

Preferably, when a first elastic block is clamped between the two left side bearing seats, the first elastic block is fixed on the outer wall of any one of the left side bearing seats.

Preferably, when a second elastic block is arranged between the two right-side bearing seats, the second elastic block is fixed on the outer wall of any one of the right-side bearing seats.

Preferably, the number of the shearing structures is more than or equal to two, all the shearing structures are arranged along the axial direction of the cutter shaft at intervals, and the male cutters and the female cutters are sequentially and alternately arranged on each cutter shaft.

Preferably, an axial side gap exists between the male cutter and the female cutter in each shearing structure, the width of the axial side gap/the thickness of the nonferrous metal sheet to be cut is controlled to be 5% -10%, and the generation of shearing burrs is reduced.

Preferably, the male cutter and the female cutter are both disc cutters, one shaft end of each cutter shaft is provided with a fixed shaft seal, and the other shaft end of each cutter shaft is provided with a hydraulic nut for locking, so that larger balanced pretightening force can be provided to prevent the axial looseness of the shearing structure when the cutter shafts run.

Preferably, one of the two sets of cutter shaft mechanisms is fixedly arranged, and one side of the other set of cutter shaft mechanism departing from the one set of cutter shaft mechanism is provided with a front-back reciprocating driving mechanism capable of driving the other set of cutter shaft mechanism to reciprocate in the front-back direction. The front-back reciprocating driving mechanism comprises a set of screw-nut mechanism which is positioned on the side of the left bearing seat of the other set of cutter shaft mechanism and can drive the left bearing seat to reciprocate in the front-back direction, and another set of screw-nut mechanism which is positioned on the side of the right bearing seat of the other set of cutter shaft mechanism and can drive the right bearing seat of the other set of cutter shaft mechanism to reciprocate in the front-back direction.

Drawings

FIG. 1 is a schematic top view of a double-spindle slitting mechanism for non-ferrous metal sheets according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

Detailed Description

The following provides a detailed description of the preferred embodiment of the dual spindle slitting mechanism for nonferrous metal sheets according to the present invention with reference to the accompanying drawings:

as shown in figure 1, the double-cutter-shaft splitting mechanism for the nonferrous metal sheet comprises two cutter-shaft mechanisms (10, 20) which are respectively arranged in front and back; one set of the cutter shaft mechanism 10 comprises a left bearing seat 11, a right bearing seat 12 and a cutter shaft 13 erected between the left bearing seat 11 and the right bearing seat 12, and the other set of the cutter shaft mechanism 20 comprises a left bearing seat 21, a right bearing seat 22 and a cutter shaft 23 erected between the left bearing seat 21 and the right bearing seat 22; the two cutter shafts (13, 23) are arranged in parallel; the other cutter shaft mechanism 20 can reciprocate in the front-back direction to realize that the two cutter shaft mechanisms (10 and 20) are close to or far away from each other; five shearing structures 100 are axially arranged on the two cutter shafts (13, 23) at intervals, each shearing structure 100 comprises a male knife 101 and a female knife 102 which can be sheared and matched with each other when the two cutter shaft mechanisms (13, 23) are close to each other, the male knife 10 and the female knife 102 in each shearing structure 100 are respectively positioned on the two cutter shafts (13, 23), and specifically: when the male knife 10 in one of the cutting structures 100 is located on the knife shaft 13 of one of the knife shaft mechanisms 10, the female knife 102 is correspondingly located on the knife shaft 23 of the other knife shaft mechanism 20, whereas when the male knife 10 in one of the cutting structures 100 is located on the knife shaft 23 of the other knife shaft mechanism 20, the female knife 102 is located on the knife shaft 13 of one of the knife shaft mechanisms 10;

the male knives 101 and the female knives 102 are alternately arranged on each knife shaft (13, 23) in sequence;

a first elastic block 30 is clamped between the two left bearing blocks (21, 11), and the first elastic block 30 is fixed on the outer wall of the left bearing block 11;

a second elastic block 40 is arranged between the two right-side bearing seats (22, 12), and the second elastic block 40 is fixed on the outer wall of the right-side bearing seat 12.

When the cutting machine works, the two sets of cutter shaft mechanisms (10 and 20) are close to each other and drive the male cutter 101 and the female cutter 102 to be close to each other and to be in shearing fit, so that the non-ferrous metal sheet to be cut is cut; after the slitting operation is finished, the two sets of cutter shaft mechanisms (10 and 20) are mutually far away.

First elastic block 30 and second elastic block 40's setting can reduce the radial runout of arbor 23 when the fore-and-aft orientation is moved improves the strip and cuts the quality, reduces the production of burr or fold.

Of course, the number of the shearing structures 100 of the present invention is not limited to five in the drawings, and may be one to four or more than five. The shape and number of the first elastic block 30 or the second elastic block 40 are not limited to the specific shape (square) and the specific number (1) in the drawings, and can be adjusted according to the needs.

Preferably, (width D of the first elastic block 30 in the front-rear direction) - (distance D between the front and rear bearing seats (21, 11) in the front-rear direction when the male blade 101 and the female blade 102 are shear-fitted) = 1 to 2 mm. Meanwhile, a width D ') of the second elastic piece 40 in the front-rear direction (a distance D') in the front-rear direction between the front and rear bearing seats (22, 12) when the male blade 101 and the female blade 102 are in shear engagement) is 1 to 2 mm.

Preferably, with reference to fig. 1 and 2, an axial side gap 50 exists between the male blade 101 and the female blade 102 in each shearing structure 100, and the width L of the axial side gap 50/thickness of the non-ferrous metal sheet to be cut is controlled to be 5% -10%.

Preferably, as shown in fig. 1, the male cutter 101 and the female cutter 102 are circular disc cutters, and one shaft end of each of the cutter shafts (13, 23) is provided with a fixed shaft seal 60, and the other shaft end is provided with a hydraulic nut 70 for locking, so that a larger balanced pre-tightening force can be provided to prevent axial looseness of a shearing structure when the cutter shafts operate.

Preferably, as shown in fig. 1, one of the knife shaft mechanisms 10 is fixedly disposed, and a front-back reciprocating driving mechanism capable of driving the other knife shaft mechanism 20 to reciprocate in the front-back direction is disposed on a side of the other knife shaft mechanism 20 away from the one of the knife shaft mechanisms 10. Of course, the two sets of cutter shaft mechanisms 10 of the present invention may also be capable of reciprocating in the front-rear direction. As shown in fig. 1, the forward and backward reciprocating drive mechanism includes a set of lead screw and nut mechanisms 81 located at the side of the left bearing seat 21 of the other set of arbor mechanism 20 and capable of driving the same to reciprocate in the forward and backward direction, and another set of lead screw and nut mechanisms 82 located at the side of the right bearing seat 22 of the other set of arbor mechanism 20 and capable of driving the same to reciprocate in the forward and backward direction. Of course, the reciprocating driving mechanism can also adopt other existing mechanisms which can realize reciprocating motion (such as oil cylinder, air cylinder and the like) and accurate positioning.

The utility model discloses right the utility model discloses the ordinary skilled person in technical field does not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A double-cutter shaft slitting mechanism for non-ferrous metal sheets comprises two cutter shaft mechanisms and at least one shearing mechanism, wherein the two cutter shaft mechanisms are respectively arranged in front and at back; each set of cutter shaft mechanism comprises a left side bearing seat, a right side bearing seat and cutter shafts erected between the left side bearing seat and the right side bearing seat, and the two cutter shafts are arranged in parallel; at least one of the two sets of cutter shaft mechanisms can reciprocate in the front-rear direction to realize that the two sets of cutter shaft mechanisms are close to or far away from each other; each shearing structure comprises a male knife and a female knife which can be mutually sheared and matched when the two cutter shaft mechanisms are close to each other, the male knife in each shearing structure is positioned on any one of the two cutter shafts, and the female knife in each shearing structure is positioned on the other one of the two cutter shafts; the method is characterized in that: and elastic blocks are respectively arranged between the two left side bearing seats or between the two right side bearing seats, and when the male knife is in shearing fit with the female knife, the elastic blocks are abutted against the two bearing seats positioned on the front side and the rear side of the elastic blocks and deform to a certain extent under the extrusion action of the two bearing seats on the front side and the rear side.

2. The double-arbor slitting mechanism for non-ferrous metal sheets according to claim 1, characterized in that: (width of the elastic block in the front-rear direction) - (distance between the front and rear bearing blocks when the male blade and the female blade are in shear engagement) = 1-2 mm.

3. The double-arbor slitting mechanism for non-ferrous metal sheets according to claim 1, characterized in that: when a first elastic block is clamped between the two left bearing blocks and a second elastic block is arranged between the two right bearing blocks, the first elastic block is fixed on the outer wall of any one left bearing block; the second elastic block is fixed on the outer wall of any right-side bearing seat.

4. The double-arbor slitting mechanism for non-ferrous metal sheets according to claim 1, characterized in that: the number of the shearing structures is more than or equal to two, all the shearing structures are arranged at intervals along the axial direction of the cutter shafts, and the male cutters and the female cutters are sequentially and alternately arranged on each cutter shaft.

5. The double-arbor slitting mechanism for non-ferrous metal sheets according to claim 1, characterized in that: an axial side gap exists between the male cutter and the female cutter corresponding to the male cutter, and the width of the axial side gap/the thickness of the non-ferrous metal sheet to be cut is controlled to be 5% -8%.

6. The double-arbor slitting mechanism for non-ferrous metal sheets according to claim 1, characterized in that: the male cutter and the female cutter are both disc cutters, one shaft end of each cutter shaft is provided with a fixed shaft seal, and the other shaft end of each cutter shaft is provided with a hydraulic nut for locking.

7. The double-arbor slitting mechanism for non-ferrous metal sheets according to claim 1, characterized in that: one of the two sets of cutter shaft mechanisms is fixedly arranged, and one side of the other set of cutter shaft mechanism departing from the one set of cutter shaft mechanism is provided with a front-back reciprocating driving mechanism which can drive the other set of cutter shaft mechanism to do reciprocating motion in the front-back direction.

8. The dual spindle slitting mechanism for nonferrous metal sheets according to claim 7, wherein: the front-back reciprocating driving mechanism comprises a set of screw-nut mechanism which is positioned on the side of the left bearing seat of the other set of cutter shaft mechanism and can drive the left bearing seat to reciprocate in the front-back direction, and another set of screw-nut mechanism which is positioned on the side of the right bearing seat of the other set of cutter shaft mechanism and can drive the right bearing seat of the other set of cutter shaft mechanism to reciprocate in the front-back direction.