WO2022037486A1

WO2022037486A1 - Roll system of six-layer parallel-roll straightener

Info

Publication number: WO2022037486A1
Application number: PCT/CN2021/112455
Authority: WO
Inventors: 张红伟; 梁涛; 卢保强; 李国庆; 李玲玉; 孔德文
Original assignee: 泰安华鲁锻压机床有限公司
Priority date: 2020-08-21
Filing date: 2021-08-13
Publication date: 2022-02-24
Also published as: CN112238157B; CN112238157A

Abstract

A roll system of a six-layer parallel-roll straightener, the roll system comprising a main machine base (1), wherein a lower roll box (2) is mounted on the main machine base (1); an upper roll box (3) is provided above the lower roll box (2); a working roll (4), a middle roll (5) and a supporting roll (6) are mounted on each of the upper roll box (3) and the lower roll box (2); the upper roll box (3) comprises an upper base (7); the lower roll box (2) comprises a lower base (8) arranged above the main machine base (1); the working roll (4) is mounted on a working roll seat (9); the supporting roll (6) is mounted on a supporting roll seat (10); supporting roll adjustment devices (11) are respectively arranged above the supporting roll seat (10) of the upper roll box (3) and below the supporting roll seat (10) of the lower roll box (2); and the supporting roll adjustment devices (11) are connected to the supporting roll seats (10) by means of supporting pins (13). The design of the roll system can achieve adjustment of the crown of the working rolls (4), such that plates with buckling defects and corrugated edge defects can be conveniently flattened, and by means of the independent supporting roll adjustment devices (11), same achieves the purpose that multiple roll systems can share one set of crown adjustment devices.

Description

A roll system of a six-fold parallel roll straightener

(1) Technical field

The invention relates to a partial component of a six-fold type parallel roller leveler, in particular to a roll system of a six-fold type parallel roller leveler.

(2) Background technology

Light alloy sheets have low density, light weight, high surface brightness, and are widely used in materials. The original plate shape of the quenched plate of light alloy plate is poor, the local unevenness of the plate after quenching is large, and there are obvious buckling defects and lotus edge defects. The roller system with traditional structure is difficult to level, and a set of energy The leveling work can only be carried out by the roll system that adjusts the deflection curve of the work roll.

(3) Contents of the invention

In order to make up for the deficiencies of the prior art, the present invention provides a six-fold parallel roller straightening machine which prolongs the service life of the roller system, improves the processing quality of the plate surface, and meets the requirements for plate leveling of plates with obvious buckling defects and ruffle defects. Roller system.

The present invention is achieved through the following technical solutions:

A roll system of a six-fold type parallel roller straightening machine comprises a base of a main machine, a lower roll box is installed on the base of the main machine, an upper roll box is arranged above the lower roll box, and the upper roll box and the lower roll box are respectively installed with working rolls, The intermediate roll and the backup roll are characterized in that: the upper roll box includes an upper base, the lower roll box includes a lower base placed above the base of the main machine, the work roll is installed on the work roll seat, and the backup roll is installed on the backup roll seat. Above the backup roller seat of the upper roller box and below the backup roller seat of the lower roller box are respectively installed backup roller adjustment devices, and the backup roller adjustment devices are connected with the backup roller seat through support pins.

The support roller adjusting device includes an upward inclined iron block and a downward inclined iron block placed under the support pin in turn, the upper inclined iron block and the downward inclined iron block are installed in the groove of the base of the main machine, and the upward inclined iron block is in the groove. It can only move up and down, the bottom surface of the downward inclined iron block is in constant contact with the bottom surface of the groove, and the downward inclined iron block can move horizontally along the length direction of the groove.

The side of the downward inclined iron block is connected to the servo oil cylinder, and the piston rod of the servo oil cylinder is connected to the side of the downward inclined iron block through the connecting rod. The servo oil cylinder is installed on the oil cylinder seat, and the oil cylinder seat is installed on the base of the main engine. A first guide seat and a second guide seat are provided, the first guide seat is connected with the oil cylinder seat, the second guide seat is connected with the baffle plate, and the baffle plate is installed on the base of the main engine.

A gravity balance device is arranged between the upper base and the support roller seat. The gravity balance device includes a screw rod installed on the upper base. The screw rod passes through a pin shaft installed on the support roller seat. A butterfly spring with a nut installed at the bottom of the threaded rod.

Positioning pins are respectively installed between the two sides of the upper base and the lower base.

A positioning ring is arranged between the upper roll box and the lower roll box, and the two arc surfaces of the positioning ring are respectively tangent to the work rolls.

Positioning strips are respectively provided on both sides of the intermediate roller, and positioning blocks are respectively provided on the left and right sides of the positioning strip.

A positioning block is provided on the side of the work roll base, and the positioning block can rotate around the upper base or the lower base.

The outer sides of the work rolls on both sides of the upper roll box are respectively provided with sheet material guide blocks.

The outer sides of the work rolls on both sides of the lower roll box are respectively provided with support plates.

Arc blocks are respectively installed on both sides of the upper base.

There is a lower roller box locking device between the lower roller box and the base of the main engine. The lower roller box locking device includes a locking oil cylinder. The locking oil cylinder is installed on the locking seat, and the front end of the locking oil cylinder is connected to a locking block. The tightening block locks the lower roller box on the base of the host by cooperating with the pressing block installed on the lower base.

Both ends of the intermediate roller are installed in the self-aligning ball bearing, the self-aligning ball bearing is installed on the intermediate roller seat, and the outer side of the self-aligning ball bearing is closely fitted with a pressure cover, and the pressure cover passes through the elastic block stuck in the hole of the intermediate roller seat. Ring positioning, the middle roller is provided with a spiral groove.

The beneficial effects of the present invention are as follows: the design of the roll system can realize the adjustment of the crown of the work rolls, so as to facilitate the leveling of plates with buckling defects and scallop defects; The purpose of sharing one set of crown adjustment device for multiple sets of rollers is achieved.

(4) Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Accompanying drawing 1 is the front view structure schematic diagram of the present invention;

Accompanying drawing 2 is the side view structure schematic diagram of the present invention;

Accompanying drawing 3 is the top view structure schematic diagram of the upper base of the present invention;

Accompanying drawing 4 is the side view structure schematic diagram of the upper base of the present invention;

Figure 5 is a schematic view of the front structure of the work roll seat of the present invention;

Figure 6 is a schematic side view of the structure of the work roll seat of the present invention;

7 is a schematic structural diagram of the lower roll crown adjustment device of the present invention;

8 is a schematic structural diagram of the lower roller box locking device of the present invention;

Figure 9 is a schematic structural diagram of the front view of the input end of the work roll of the present invention;

10 is a schematic structural diagram of the side view of the input end of the work roll of the present invention;

11 is a schematic diagram of the support pin installation structure of the present invention;

12 is a schematic structural diagram of the gravity balance device of the present invention;

13 is a schematic diagram of the matching structure of the intermediate roller and the intermediate roller seat of the present invention;

14 is a schematic structural diagram of the safety flexible device of the present invention;

In the figure, 1 main machine base, 2 lower roll box, 3 upper roll box, 4 work roll, 5 intermediate roll, 6 backup roll, 7 upper base, 8 lower base, 9 work roll seat, 10 backup roll seat, 11 backup roll Adjusting device, 12 gravity balance device, 13 support pin, 14 up inclined iron block, 15 down inclined iron block, 16 groove, 17 servo cylinder, 18 connecting rod, 19 cylinder seat, 20 first guide seat, 21 second guide Seat, 22 baffle, 23 positioning pin, 24 positioning ring, 25 positioning strip, 26 positioning stop, 27 positioning block, 28 sheet guide block, 29 pallet, 30 arc block, 31 lower roller box lock Tightening device, 32 locking cylinder, 33 locking seat, 34 locking block, 35 pressing block, 36 screw, 37 pin, 38 butterfly spring, 39 nut, 40 self-aligning ball bearing, 41 intermediate roller seat, 42 pressure Cover, 43 circlips, 44 helical grooves, 45 screws, 46 butterfly springs.

(5) Specific implementation methods

The accompanying drawing is a specific embodiment of the present invention. This embodiment includes a main machine base 1, a lower roll box 2 is installed on the main machine base 1, an upper roll box 3 is arranged above the lower roll box 2, and a work roll 4 and an intermediate roll are respectively installed on the upper roll box 3 and the lower roll box 2. 5 and backup rolls 6, the upper roll box 3 includes an upper base 7, the lower roll box 2 includes a lower base 8 placed above the base 1 of the main machine, the work roll 4 is installed on the work roll seat 9, and the backup roll 6 is installed on the backup roll seat 10, above the backup roller seat 10 of the upper roller box 3 and below the backup roller seat 10 of the lower roller box 2 are respectively installed backup roller adjustment devices 11, the backup roller adjustment device 11 is connected with the backup roller seat 10 through the support pin 13.

The support roller adjusting device 11 includes an upwardly inclined iron block 14 and a downwardly inclined iron block 15 placed under the support pin 13 in sequence. The iron block 14 can only move up and down in the groove 16 . The side of the downward inclined iron block 15 is connected to the servo oil cylinder 17, and the piston rod of the servo oil cylinder 17 is connected to the side of the downward inclined iron block 15 through the connecting rod 18. A first guide seat 20 and a second guide seat 21 are respectively provided on both sides of the upper inclined iron block 14. The first guide seat 20 is connected with the oil cylinder seat 19, and the second guide seat 21 is connected with the baffle plate 22. The baffle plate 22 is installed on the base 1 of the main unit.

Positioning pins 23 are respectively installed between the two sides of the upper base 7 and the lower base 8 . A positioning ring 24 is provided between the upper roll box 3 and the lower roll box 2 , and two arc surfaces of the positioning ring 24 are tangent to the work roll 4 respectively. Positioning strips 25 are respectively provided on both sides of the intermediate roller 5 , and positioning blocks 26 are respectively provided on the left and right sides of the positioning strip 25 . A positioning block 27 is provided on the side of the work roll base 9 , and the positioning block 27 can rotate around the upper base 7 or the lower base 8 . Sheet material guide blocks 28 are respectively provided on the outer sides of the work rolls 4 on both sides of the upper roll box 3 . The outer sides of the work rolls 4 on both sides of the lower roll box 2 are respectively provided with support plates 29 . Arc blocks 30 are respectively installed on both sides of the upper base 7 . A lower roller box locking device 31 is arranged between the lower roller box 2 and the base 1 of the main engine. The lower roller box locking device 31 includes a locking oil cylinder 32, which is installed on the locking seat 33 and the front end of the locking oil cylinder 32. The locking block 34 is connected, and the locking block 34 locks the lower roller box 2 on the base 1 of the main machine by cooperating with the pressing block 35 installed on the lower base 8 . Both ends of the middle roller 5 are installed in the self-aligning ball bearing 40, the self-aligning ball bearing 40 is installed on the middle roller seat 41, and the outer side of the self-aligning ball bearing 40 is closely fitted with a pressure cover 42, and the pressure cover 42 is clamped on the middle roller seat by The elastic retaining ring 43 in the hole 41 is positioned, and the intermediate roller 5 is provided with a spiral groove 44 .

Adopting the roller system of the six-fold type parallel roller straightening machine of the present invention, the upper base 7 is a welding piece structure, which is the installation base of the entire upper roller box 3, and there are multiple sets of guide grooves for installing the support roller base 10 on it; there is an installation work. The groove of the roller seat 9 has a positioning groove for installing the positioning block 27 on the side of the groove, a craft square hole for installing the screw above the groove, and a slot for installing the arc block 30 on both sides of the upper base 7 .

The backup roller seat 10 is fixed on the upper base 7 by the disc spring 38, the screw 36 and the nut 39. The disc spring 38 provides the elastic force to overcome its own weight, so that the backup roller seat 10 and the backup roller adjusting device 11 fit together. When the 10 moves up and down, the disc spring 38 is retractable to ensure a flexible connection. The gravity balance device 12 is only used for the gravity balance of the upper backup roll 6 , which can prevent the upper backup roll seat 10 from being separated from the support pin 13 , and also avoid the additional deflection deformation of the upper work roll 4 due to the weight of the upper backup roll 6 . .

The backup rollers 6 of the upper roll box 3 are mounted on the backup roller base 10 through bearings, the middle rollers 5 are located at the lower part of the backup rollers 6, and each middle roller 5 is in contact with two sets of backup rollers 6. A smaller group. The work rolls 4 are located at the lower part of the intermediate rolls 5. Each work roll 4 is in contact with two intermediate rolls 5. The number of work rolls 4 is one less than the number of intermediate rolls 5; The ratio of the diameter of 5 to the diameter of work roll 4 is between 0.6-0.8. The positions of the two outermost backup rolls 6 are moved down relative to the positions of the other backup rolls 6, to ensure that the center of the outermost intermediate roll 5 is within the line connecting the outermost work roll 4 and the center of the outermost backup roll 6, and to ensure that the work roll 4 is the most The outer intermediate roll 5 does not come out of the roll train.

A positioning strip 25 is provided on both sides of the intermediate roller 5, and is positioned with the positioning blocks 26 on the left and right sides, and the intermediate roller 5 is positioned during the installation process. The 4-axis head of the work roll is processed with an involute external spline, and the number of spline teeth is even. It cooperates with the internal spline of the shaft head of the transmission shaft to realize power input.

The intermediate roller 5 is a long cylindrical shape with shaft heads for mounting bearings at both ends, and the diameter of the shaft head is smaller than the diameter of the roller body of the intermediate roller 5 . The spiral groove 44 is 2 to 3 mm deep and 3 to 5 mm wide. The spiral groove 44 can effectively store the adhering spray lubricating fluid and push the lubricating fluid to the full length of the work roll 5 to effectively prolong the effect of the spray lubricating fluid. Time, expand the distribution range, reduce the friction between the work roll 4 and the plate during plate leveling, and improve the surface quality of the plate. When foreign objects fall into the roll system, the rotation of the spiral grooves 44 can push the foreign objects to both ends of the intermediate roll 5, so as to prevent the foreign objects from adhering to the work roll 4, the intermediate roll 5 or the backup roll 6 and affecting the work roll 4. , the service life of the intermediate roll 5 and the backup roll 6, avoid foreign matter falling on the sheet and damage the surface of the work roll 4 and the sheet surface, and prolong the service life of the work roll 4, the middle roll 5 and the backup roll 6.

The use of the self-aligning ball bearing 40 enables the intermediate roll 5 to generate a certain swing angle relative to the intermediate roll base 41, so that the intermediate roll 5 can follow the work roll 4 to form the required deflection curve for leveling. The shoulder of the intermediate roller 5 is in contact with the self-aligning ball bearing 40 at one end, and one end is free. When the intermediate roller 5 is bent with a certain deflection, the intermediate roller 5 can retract relative to the self-aligning ball bearing 40 without interfering with the bearing seat. When the work roll 4 is adjusted to produce the required deflection curve for plate leveling, the intermediate roll 5 follows the deformation and keeps in contact with the work roll 4 over the entire length of the roll body to ensure the plate leveling effect.

The free end of the intermediate roller seat 41 is a spherical surface, and a positioning step symmetrical about the center is processed, which facilitates the installation and positioning of the intermediate roller 5 .

The outer diameter of the intermediate roller seat 41 is smaller than the diameter of the roller body. The oil seal and the gland 42 seal the self-aligning ball bearing 40 in the intermediate roller seat 41. Adding grease to the bearing seat can prolong the service life of the bearing. The middle roller seat 41 is equipped with a pressure-filling oil cup, which is convenient for replenishing the lost grease.

The work roll 4 is fixed on the work roll base 9 through bearings, and the work roll base 9 is fixed on the upper base 7 by a safety and flexible device, so as to realize the flexible connection between the work roll base 9 and the upper base 7, and the upper base 7 is provided with an installation safety flexible device. The device has a plurality of square holes, the upper surface of each square hole is provided with a through hole corresponding to the wire hole on the lower surface of the work roll base 9, the safety and flexible device is composed of screws 45 and disc springs 46, and the disc springs 46 are sleeved on On the screw 45, the screw 45 passes through the upper surface of the square hole and is provided with a through hole to be fixed on the wire hole on the lower surface of the work roll base 9, and at the same time press the disc spring 46, the work roll base 9 can be relative to the upper base 7. The coned disc spring 46 can be raised and lowered within the range of expansion and contraction to avoid damage to the work roll 4 due to misoperation of the roll crown adjustment device of the work roll 4 .

The hardness of the work roll 4 is higher than that of the intermediate roll 5, and the hardness of the intermediate roll 5 is higher than that of the backup roll 6. This hardness arrangement makes it possible to avoid damage to the work that is in direct contact with the plate when there are hard foreign objects on the leveled plate. Roller 4 to ensure the quality of the board surface. The surface of the work roll 4 is sprayed with tungsten carbide to ensure that the work roll 4 is wear-resistant and durable.

The multiple rows of backup rolls 6 are evenly distributed under the work rolls 4 and the intermediate rolls 5, and constitute the main body of the work rolls 4 to provide supporting force during plate leveling. By adjusting the height of the backup rolls 6, the intermediate rolls 5 and the work rolls 4 follow the deformation , to form the deflection curve required to correct the buckling defect and the scallop defect, and perform sheet leveling.

The work roll 4 of the upper roll box 3 is fixed on the work roll base 9 through self-aligning bearings, and the work roll base 9 is fixed on the upper base 7 by screws and disc springs, so as to realize the flexible connection between the work roll base 9 and the upper base 7, The work roll base 9 can be raised and lowered relative to the upper base 7 . The side surface of the work roll base 9 is matched with the groove of the upper base 7, and the work roll base 9 is positioned along the feeding direction of the equipment sheet through the groove of the upper base 7, so as to avoid the work roll base 9 slipping when the leveling force is applied, which will affect the leveling. flat effect. A positioning block 27 is embedded on the side of the work roll base 9 , the positioning block 27 can be rotated, and the work roll base 9 can swing relative to the upper base 7 in the axial direction of the work roll 4 . The bottom surface of the work roll base 9 is a circular arc surface, and the upper surface of the groove of the upper base 7 matched with it is a flat surface, which facilitates the swing of the work roll base 9 . The design form of the work roll base 9 can better meet the requirements of forming the deflection curve of the work roll 4. At the same time, during maintenance, the work roll base 9 together with the work roll 4 can be easily and quickly removed, and the work roll 4 and the intermediate roll 5 can be quickly removed. Carry out maintenance; in order to maintain the continuity of production and use, the spare work roll 4 and the work roll seat 9 can be directly replaced.

The sheet guide blocks 28 are arranged obliquely at the slightly higher positions on both sides of the work roll 4, and span the entire length of the work roll 4, so as to facilitate the introduction of the sheet with a large amount of deformation between the upper and lower work rolls 4, and prevent the sheet from being caught in the backup rolls 6 and 4. between the intermediate rollers 5, causing equipment damage. A polyurethane layer is attached to the lower surface of the board guide block 28 to avoid scratching the board surface.

The arc block 30 is installed on both sides of the upper base 7 and has a certain radian on the outside. The arc block 30 is in contact with the guide rail plate on the side of the column, so that the upper roller box 3 can swing and form the necessary swing angle for sheet leveling.

The supporting roll 6, middle roll 5, work roll 4, and work roll seat 9 in the lower roll box 2 are connected and matched with each other, and the relative size relationship is symmetrical with the upper roll box 3. The number of backup rolls 6, intermediate rolls 5, and work rolls 4 Compared with the number of backup rolls 6 , intermediate rolls 5 and work rolls 4 in the upper roll box 3 , there are one more set.

The back-up roller assembly in the lower roller box 2 does not have a separate adjustment device. Each group of back-up roller seats 10 is connected to the back-up roller adjusting device 11 through a certain number of support pins 13 through the holes reserved on the bottom surface of the lower base 8, and through the back-up roller The adjusting device 11 is used to adjust the height of the backup roll 6, so that the deflection curve of the work roll 4 changes inversely, so as to obtain the deflection curve required for sheet metal leveling.

The servo oil cylinder 17 is fixed on the oil cylinder base 19 by screws, and the oil cylinder base 19 is fixed on the main engine base 1 by keys and screws. The lower inclined iron block 15 and the upper inclined iron block 14 are used together. The lower surface of the iron block 15 is parallel to the upper surface of the upward inclined iron block 14 . The lower surface of the lower inclined iron block 15 is in contact with the bottom surface of the groove 16 provided on the base 1 of the main engine, and the side surfaces of the upper and lower inclined iron blocks are in clearance fit with the side surface of the groove 16, and are guided by the side surface of the groove 16. The lower inclined iron block 15 is connected to the piston rod of the servo cylinder 17 through the first guide seat 20 through the connecting rod 18, the horizontal movement of the lower inclined iron block 15 is controlled by the servo oil cylinder 17, and the upward inclined iron block 14 passes through the first guide seat 20 and The second guide seat 21 is positioned; the first guide seat 20 is connected with the oil cylinder seat 19 and the position is fixed; Through positioning, the upward inclined iron block 14 can only move up and down with one degree of freedom, and cannot slide horizontally, so as to achieve the purpose of converting the horizontal movement of the downward inclined iron block 15 into the up and down movement of the upward inclined iron block 14 . The upper surface of the inclined iron block 14 is in contact with the lower surface of the support pin 13 , and the force and displacement are transmitted to the backup roller seat 10 through the support pin 13 . The servo cylinder 17 is equipped with a built-in sensor, which can accurately control the output displacement of the piston rod. Through the inclination of the up and down inclined iron blocks, the displacement of the up inclined iron block 14 corresponding to the horizontal output of the piston rod displacement can be calculated. 17 The purpose of accurately controlling the deflection of the work roll 4 is adjusted.

The adjustment method of the backup rollers in the upper roller box 3 is the same as that of the backup rollers in the lower roller box 2, and the positional relationship is symmetrical up and down.

The backup roll adjusting device 11 is independent of the entire set of rolls, and can be applied to another set of rolls when the rolls need to be replaced. Multiple sets of rollers have a set of adjustment devices, thus achieving the purpose of reducing costs.

The pallets 29 are arranged on both sides of the work rolls 4 of the lower roll box 2 below the busbar on the work rolls 4 and span the entire length of the work rolls 4 to ensure that the sheet can enter between the upper and lower work rolls 4 smoothly. The upper surface of the pallet 29 is attached with a polyurethane layer to avoid scratching the board surface.

A positioning pin 23 is installed on one side of the upper base 7 and the lower base 8, respectively, and there are concentric holes. Base guide strips made of wear-resistant materials are installed on both sides of the upper base 7 and the lower base 8, which play a guiding role when replacing the roller box.

A work roll positioning ring 24 is designed between the upper roll box 3 and the lower roll box 2, which is a 1/4 ring. The inner diameter of the ring is the same as that of the work roll 4, and the outer diameter is tangent to the two work rolls 4, so that the When the upper roller box 3 is placed on the lower roller box 2, the axis of each upper roller is aligned with the middle line of the axes of the two lower rollers. The outer diameter of the ring is such that when the upper roll box 3 is placed on the lower roll box 2, the lower generatrix of the upper work roll 4 is 10 mm higher than the upper generatrix of the lower work roll 4.

The locking seat 33 is fixed on the base 1 of the main engine by keys and screws, the locking oil cylinder 32 is fixed on the upper part of the locking seat 33, the locking block 34 is connected to the head of the rod of the locking oil cylinder 32, and the pressing block 35 is fixed on the bottom by keys and screws. on base 8. When the locking action is performed, the inclined surface on the locking block 34 is in contact with the inclined surface on the pressing block 35, and the lower base 8 is pressed against the equipment base. When the roller system needs to be replaced, the locking device 31 of the lower roller box can be quickly released.

The upper roll box 3 and the lower roll box 2 constitute a set of roll structure independent of the equipment. Through the separate design of the roll structure, it is convenient to adjust the roll parameters such as roll diameter, roll distance, and number of rolls. , Arrange multiple sets of rollers and share a set of main frame, which can realize the functions that require multiple levelers on one leveler.

Claims

A roll system of a six-fold type parallel roller leveler comprises a main machine base (1), a lower roll box (2) is installed on the main machine base (1), and an upper roll box (3) is arranged above the lower roll box (2). , the upper roll box (3) and the lower roll box (2) are respectively installed with work rolls (4), intermediate rolls (5) and backup rolls (6), characterized in that the upper roll box (3) includes an upper roll box (3). The base (7), the lower roll box (2) includes a lower base (8) placed above the base (1) of the main machine, the work roll (4) is installed on the work roll seat (9), and the backup roll (6) is installed on the support On the roller seat (10), above the backup roller seat (10) of the upper roller box (3) and below the backup roller seat (10) of the lower roller box (2), backup roller adjustment devices (11) are respectively installed to adjust the backup rollers. The device (11) is connected with the support roller seat (10) through a support pin (13), a gravity balance device (12) is arranged between the upper base (7) and the support roller seat (10), and the gravity balance device (12) includes The screw (36) installed on the upper base (7), the screw (36) passes through the pin (37) installed on the support roller seat (10), and the bottom of the pin (37) is sleeved on the screw (36) A nut (39) is installed at the bottom of the screw (36), and the disc spring (38) provides an elastic force to overcome its own weight, so that the backup roller seat (10) and the backup roller adjusting device (11) fit together, When the backup roller seat (10) moves up and down, the disc spring (38) is retractable to ensure flexible connection, and the gravity balance device (12) is only used for the gravity balance of the upper backup roller (6), which can avoid the upper backup roller seat (6). 10) Disengagement, at the same time, it can also avoid the additional deflection deformation of the upper work roll (4) due to the weight of the upper backup roll (6); the positioning pins are respectively installed between the two sides of the upper base (7) and the lower base (8). A positioning ring (24) is arranged between the shaft (23), the upper roll box (3) and the lower roll box (2), and the two arc surfaces of the positioning ring (24) are respectively tangent to the work roll (4) , a lower roller box locking device (31) is provided between the lower roller box (2) and the base (1) of the main machine, and the lower roller box locking device (31) includes a locking oil cylinder (32), and the locking oil cylinder (32) Installed on the locking seat (33), the front end of the locking oil cylinder (32) is connected to the locking block (34), and the locking block (34) cooperates with the pressing block (35) installed on the lower base (8) to connect the lower roller. The box (2) is locked on the base (1) of the main engine, both ends of the intermediate roller (5) are installed in the self-aligning ball bearing (40), and the self-aligning ball bearing (40) is installed on the A pressure cover (42) is closely attached to the outer side of the ball bearing (40), the pressure cover (42) is positioned by an elastic retaining ring (43) clamped in the hole of the intermediate roller seat (41), and the intermediate roller (5) is provided with a Spiral groove (44); the height of the backup roller (6) is adjusted by the backup roller adjusting device (11), so that the deflection curve of the work roller (4) is reversely changed, thereby obtaining the deflection curve required for sheet metal leveling.
The roll system of the six-fold parallel roll leveler according to claim 1, wherein the support roll adjustment device (11) comprises an upward inclined iron block (14) and The lower inclined iron block (15), the upper inclined iron block (14) and the lower inclined iron block (15) are installed in the groove (16) of the base (1) of the main machine, and the upward inclined iron block (14) is installed in the groove (16) ) can only move up and down, the bottom surface of the downward inclined iron block (15) is in constant contact with the bottom surface of the groove (16) and the downward inclined iron block (15) can move horizontally along the length direction of the groove (16).
The roller system of the six-fold parallel roller leveler according to claim 2, characterized in that: the side surface of the downward inclined iron block (15) is connected to a servo oil cylinder (17), and the piston rod of the servo oil cylinder (17) passes through a connecting rod. (18) is connected to the side of the downward inclined iron block (15), the servo cylinder (17) is installed on the oil cylinder seat (19), the oil cylinder seat (19) is installed on the main engine base (1), and the upward inclined iron block (14) is two The sides are respectively provided with a first guide seat (20) and a second guide seat (21), the first guide seat (20) is connected with the oil cylinder seat (19), and the second guide seat (21) is connected with the baffle plate (22). connected, the baffle plate (22) is installed on the base (1) of the main engine.
The roller system of the six-fold parallel roller leveler according to claim 1, characterized in that: positioning strips (25) are respectively provided on both sides of the intermediate roller (5), and positioning strips (25) are provided on the left and right sides of the positioning strip (25). Positioning blocks (26) are respectively provided.
The roll system of the six-fold parallel roll leveler according to claim 1, characterized in that: a positioning block (27) is provided on the side of the work roll base (9), and the positioning block (27) can be wound around the base (7). ) or the lower base (8) turns.
The roll system of the six-fold parallel roll leveler according to claim 1, characterized in that: the outer sides of the work rolls (4) on both sides of the upper roll box (3) are respectively provided with sheet guide blocks (28).
The roll system of the six-fold parallel roll leveler according to claim 1, characterized in that: the outer sides of the work rolls (4) on both sides of the lower roll box (2) are respectively provided with support plates (29).
The roller system of the six-fold parallel roller leveler according to claim 1, characterized in that: arc blocks (30) are respectively installed on both sides of the upper base (7).