CN114147091A

CN114147091A - Prestressing force opens formula straightener frame

Info

Publication number: CN114147091A
Application number: CN202111523611.0A
Authority: CN
Inventors: 曹跃进; 宋连庆; 祁佰忱; 权策; 李云辉; 王彩元
Original assignee: XI'AN MEHAT INDUSTRIAL TECHNOLOGY CO LTD
Current assignee: XI'AN MEHAT INDUSTRIAL TECHNOLOGY CO LTD
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-03-08

Abstract

The invention belongs to the technical field of straightening equipment, and relates to a pre-stressed opening type straightening machine frame which comprises an upper frame and a lower frame, wherein one side of the upper frame is hinged with one side of the lower frame through a rotary unit, and the other side of the lower frame is longitudinally and symmetrically provided with rotary locking oil cylinders in front and back; an opening oil cylinder is arranged on one side close to the rotary unit, a cylinder barrel of the opening oil cylinder is installed on the outer side of the lower rack in a hinged mode, and a first piston rod of the opening oil cylinder is hinged to the bottom of the upper rack. The opening type machine frame forms a prestressed frame structure by applying force together through the rotary locking oil cylinder and the opening oil cylinder, so that the working process is more stable and reliable; meanwhile, the upper frame and the lower frame of the prestress opening type straightening machine are of opening type structures, so that workers can clean and maintain the interior of the equipment conveniently, and particularly clean and maintain a roller box.

Description

Prestressing force opens formula straightener frame

Technical Field

The invention belongs to the technical field of straightening equipment, and relates to a pre-stress opening type straightening machine frame.

Background

With the development of national economy and industrial technology, the requirements of users on various quality indexes of the plate and strip materials are higher and higher. In the process of rolling to produce the plate strip, the longitudinal extension of the strip in the width direction is not uniform and waves are generated due to improper process parameters, installation level, the shape of a roll-shaped roll gap and the like. The general process often has the defects of bilateral waves, unilateral waves, middle waves, two-rib waves and the like, and even has the defects of head-tail warping, lateral bending, buckling, potential bad plate shapes and the like. These defects, if not eliminated, can interfere with the further processing of the strip and fail to meet the evolving market demands. Particularly, in recent years, with the rapid development of intelligent manufacturing, high-precision dies are used in downstream processes such as painting, coating and stamping, so that strict requirements are imposed on the flatness of raw materials, and therefore, before the above processes are performed, the sheet and strip with defects need to be subjected to flattening and straightening treatment so as to meet the requirements of downstream production. In the existing precision straightening machine, in order to ensure the flatness of the plate and strip materials, the equipment is generally set to be a stable fixed structure, but the structure is inconvenient for cleaning and maintaining the roller box.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a prestressed opening type straightening machine frame.

The purpose of the invention is solved by the following technical scheme:

the pre-stress opening type straightening machine frame comprises an upper frame and a lower frame, wherein one side of the upper frame is hinged with one side of the lower frame through a rotary unit, and the other side of the lower frame is longitudinally and symmetrically provided with rotary locking oil cylinders in front and back; the rotary locking device comprises a rotary unit, a first piston rod, an opening oil cylinder, a cylinder barrel, a first piston rod, a cylinder shell and a rotary locking oil cylinder, wherein the front side and the back side of one side close to the rotary unit are symmetrically provided with the opening oil cylinder, the cylinder barrel of the opening oil cylinder is installed on the outer side of a lower rack in a hinged mode, the first piston rod of the opening oil cylinder is hinged with the bottom of an upper rack, and the oil cylinder shell of the rotary locking oil cylinder is installed on the lower rack through an end flange.

Further, the rotary locking oil cylinder comprises an oil cylinder shell, a second piston rod is arranged in the oil cylinder shell, a locking portion is installed at the top end of the second piston rod, a cam unit is installed on the periphery of the lower portion of the second piston rod, and a cam curve used for restricting the moving track of the cam unit is arranged on the inner wall of the oil cylinder shell.

Further, the cam units are symmetrically distributed at the lower part of the second piston rod, each cam unit comprises guide pillars horizontally arranged around the lower part of the second piston rod, bearings are mounted at the ends of the guide pillars, and the bearings move along the cam curve when the second piston rod extends out or retracts.

Further, the locking portion adopts a cuboid locking plate, and the cuboid locking plate is fixedly installed at the top end of the second piston rod through a fastener.

Furthermore, a cuboid lock plate position detection switch is arranged on an upper frame window of the upper frame, and an upper frame position detection switch is arranged on the upper surface of the lower frame at the corresponding position.

Furthermore, the rotation angle of the second piston rod is 90 degrees after the rotation locking oil cylinder finishes one stroke.

Furthermore, a limiting mechanism is arranged between the upper frame and the lower frame and is arranged close to the side of the rotary locking oil cylinder.

Further, a gap eliminating mechanism for improving the straightening precision is arranged between the upper frame and the lower frame, and the gap eliminating mechanism is arranged close to the rotary unit.

Further, the gap eliminating mechanism comprises a cylindrical shell fixedly arranged at the top of the lower rack, and a disc spring group is placed in a cavity of the cylindrical shell; the cylindrical shell is characterized in that a stepped guide rod is arranged in the cavity of the cylindrical shell and positioned at the top of the disc spring group, a gland is fixedly connected to the top of the cylindrical shell, one side of the large end of the guide rod is constrained in the cavity of the cylindrical shell through the cooperation of the gland and the cylindrical shell, and the top of the guide rod is in contact with the lower surface of the upper frame through the reaction force generated by the disc spring group.

Further, an upper roller box pressing mechanism is arranged on the upper rack, and the bottom end of the upper roller box pressing mechanism is fixedly connected with the upper roller box.

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects: on one hand, by the design of arranging the rotary locking oil cylinder, the working position of the upper rack is locked when the machine works, so that the working positions of all the roller boxes are kept still, and the consistency of the produced plate and strip materials is higher; the opening type machine frame forms a prestressed frame structure by applying force together through the rotary locking oil cylinder and the opening oil cylinder, so that the working process is more stable and reliable; meanwhile, the upper frame and the lower frame of the prestress opening type straightening machine are of opening type structures, so that workers can clean and maintain the interior of the equipment conveniently, and particularly clean and maintain a roller box.

On the other hand, the rotary locking oil cylinder adopted in the frame has the advantages of simple structure, easy processing and low cost, and can be sleeved on the locking part at the top of the piston rod to automatically lock the oil cylinder at the stroke end of the oil cylinder so as to keep the stroke of the oil cylinder; in addition, the gap eliminating mechanism is arranged below the rotary unit, so that the gap caused by the rotary unit can be eliminated, and the straightening precision is ensured.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a structural view of a frame of a pre-stressed opening type straightener provided by the invention;

FIG. 2 is a structural diagram of a spin lock cylinder provided in the present invention;

fig. 3 is a structural diagram of the backlash eliminating mechanism provided by the present invention.

Wherein: 1. an upper frame; 2. a limiting mechanism; 3. rotating the locking oil cylinder; 4. a lower frame; 5. opening the oil cylinder; 6. a deflection adjusting mechanism of the lower roll box; 7. a lower roll box; 8. a gap eliminating mechanism; 9. a rotation unit; 10. an upper roller box; 11. the upper roll box pressing mechanism; 12. an upper frame window; 13. a cuboid lock plate position detection switch; 14. an upper frame position detection switch; 31. a locking portion; 32. a second piston rod; 33. a cam unit; 34. a cylinder housing; 35. a cam curve; 51. a cylinder barrel; 52. a first piston rod; 81. a cylindrical housing; 82. a disc spring set; 83. a guide bar; 84. and (7) pressing the cover.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and examples.

Examples

Referring to fig. 1, the invention provides a pre-stressed opening type straightener frame, which comprises an upper frame 1 and a lower frame 4, wherein one side of the upper frame 1 is hinged with one side of the lower frame 4 through a rotary unit 9, and the other side of the lower frame 4 is longitudinally and symmetrically provided with rotary locking oil cylinders 3 in front and back; an opening oil cylinder 5 is arranged on one side close to the rotary unit 9, a cylinder barrel 51 of the opening oil cylinder 5 is mounted on the outer side of the lower frame 4 in a hinged mode, a first piston rod 52 of the opening oil cylinder 5 is hinged to the bottom of the upper frame 1, and an oil cylinder shell 34 of the rotary locking oil cylinder 3 is mounted on the lower frame 4 through an end flange.

Further, as shown in fig. 2, the rotation locking cylinder 3 includes a cylinder housing 34, a second piston rod 32 is disposed in the cylinder housing 34, a locking portion 31 is mounted at a top end of the second piston rod 32, a cam unit 33 is mounted around a lower portion of the second piston rod 32, and a cam curve 35 for restricting a moving track of the cam unit 33 is disposed on an inner wall of the cylinder housing 34.

Further, the cam units 33 are symmetrically distributed on the lower portion of the second piston rod 32, each cam unit 33 includes guide pillars horizontally arranged around the lower portion of the second piston rod 32, a bearing is installed at an end of each guide pillar, and when the second piston rod 32 extends/retracts, the bearing moves along the cam curve 35.

Further, locking portion 31 adopts the cuboid jam plate, the cuboid jam plate passes through fastener fixed mounting in the top of second piston rod 32.

Further, an upper frame window 12 of the upper frame 1 is provided with a cuboid lock plate position detection switch 13, and an upper frame position detection switch 14 is arranged on the upper surface of the lower frame 4 at the corresponding position.

Further, the rotation angle of the second piston rod 32 is 90 degrees after the rotation locking cylinder 3 finishes one stroke.

Further, a limiting mechanism 2 is arranged between the upper frame 1 and the lower frame 4, and the limiting mechanism 2 is arranged close to the side of the rotary locking cylinder; the limiting mechanism 2 comprises a convex structure located below the upper rack 1 and a concave structure located above the lower rack 4, the convex structure is matched with the concave structure, and the upper rack 1 and the lower rack 4 are further fixed.

Further, an upper roller box pressing mechanism 11 is arranged above the upper rack 1, the bottom end of the upper roller box pressing mechanism 11 is fixedly connected with the upper roller box 10, and the distance between the upper roller box 10 and the lower roller box 7 is adjusted by adjusting the pressing height of the upper roller box pressing mechanism 11.

Further, the lower machine frame 4 is provided with a lower roll box deflection adjusting mechanism 6 to homogenize the internal stress of the strip and improve the plate shape.

In summary, the specific opening or closing process of the pre-stressed opening type straightener frame provided by the invention is as follows:

when the upper frame 1 needs to be opened, the rotary locking oil cylinder 3 is in an opening state, and the opening process is as follows: when the second piston rod 32 extends out under the driving of oil pressure, because the cam units 33 are arranged on the periphery of the lower portion of the second piston rod 32, under the constraint of the cam curve 35, the second piston rod 32 rotates while extending out, when the second piston rod 32 finishes the stroke, the second piston rod 32 just rotates 90 degrees, and meanwhile, the cuboid locking plate is also driven to rotate 90 degrees, so that the cuboid locking plate is consistent with the upper frame window 12 of the upper frame 1 in direction; simultaneously, detect the position of cuboid jam plate through cuboid jam plate position detection switch 13, after cuboid jam plate position detection switch 13 sends out the news, go up frame 1 and just can carry out the opening instruction under the effect of opening hydro-cylinder 5.

When the upper frame 1 needs to be closed, the premise is that the rotary locking oil cylinder 3 is in an open state, and the cuboid locking plate position detection switch 13 is always in a signaling state at the moment. When the upper frame 1 is closed in place under the action of the opening oil cylinder 5, the upper frame position detection switch 14 arranged on the lower frame 4 starts to send a signal after detecting that the upper frame 1 is closed in place, and at the moment, the rotary locking oil cylinder 3 starts to execute a retraction instruction of the second piston rod 32, so that the upper frame 1 and the lower frame 4 are further locked. When the second piston rod 32 retracts under the drive of oil pressure, because the cam unit 33 is installed all around to second piston rod 32 lower part, under the constraint of cam curve 35, the second piston rod 32 is rotatory while retracting, the second piston rod 32 has just rotated 90 degrees when the second piston rod 32 moves back to the end, also drive the cuboid jam plate and have rotated 90 degrees simultaneously, thereby make the cuboid jam plate become 90 degrees with the upper frame window 12 direction of upper frame 1, the cuboid jam plate is pressed on the bottom surface of upper frame window 12, with upper frame 1, lower frame 4 locks together.

As shown in fig. 3, a gap eliminating mechanism 8 for improving the straightening accuracy is further disposed between the upper frame 1 and the lower frame 4, and the gap eliminating mechanism 8 is disposed near the rotating unit. Specifically, as shown in fig. 3, the anti-backlash mechanism 8 includes a cylindrical housing 81 fixedly disposed on the top of the lower frame 4, and a disc spring set 82 is disposed in a cavity of the cylindrical housing 81; a stepped guide rod 83 is arranged in the cavity of the cylindrical shell 81 and positioned at the top of the disc spring group 82, a gland 84 is fixedly connected to the top of the cylindrical shell 81, one side of the large end of the guide rod 83 is constrained in the cavity of the cylindrical shell 81 through the cooperation of the gland 84 and the cylindrical shell 81, and the top of the guide rod 83 is in contact with the lower surface of the upper frame 1 through the reaction force generated by the disc spring group 82. Specifically, the top surface of the guide rod 83 is a circular arc surface, when acting on the circular arc surface of the guide rod 83, the guide rod 83 moves downwards to compress and deform the disc spring group 82, and simultaneously, the disc spring group 82 generates a reaction force upwards, so that the gap between the upper frame 1 and the lower frame 4 is eliminated, and the production precision of the whole device is greatly improved.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.

It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. A pre-stress opening type straightening machine frame comprises an upper frame (1) and a lower frame (4), and is characterized in that one side of the upper frame (1) is hinged with one side of the lower frame (4) through a rotary unit (9), and the other side of the lower frame (4) is longitudinally and symmetrically provided with rotary locking oil cylinders (3) in front and back; an opening oil cylinder (5) is arranged on one side close to the rotary unit (9), a cylinder barrel (51) of the opening oil cylinder (5) is installed on the outer side of the lower rack (4), a first piston rod (52) of the opening oil cylinder (5) is hinged to the bottom of the upper rack (1), and an oil cylinder shell (34) of the rotary locking oil cylinder (3) is installed on the lower rack (4).

2. The prestressed open type straightener frame according to claim 1, wherein the rotation locking cylinder (3) comprises a cylinder housing (34), a second piston rod (32) is arranged in the cylinder housing (34), a locking part (31) is installed at the top end of the second piston rod (32), a cam unit (33) is installed around the lower part of the second piston rod (32), and a cam curve (35) for restricting the moving track of the cam unit (33) is arranged on the inner wall of the cylinder housing (34).

3. The pre-stressed opening straightener frame according to claim 2, wherein the cam units (33) are symmetrically distributed at the lower part of the second piston rod (32), the cam units (33) comprise guide pillars horizontally arranged around the lower part of the second piston rod (32), the ends of the guide pillars are provided with bearings, and the bearings move along the cam curve (35) when the second piston rod (32) is extended/retracted.

4. The pre-stressed opening type straightener frame according to claim 2, characterized in that the locking part (31) is a rectangular parallelepiped locking plate which is fixedly mounted on the top end of the second piston rod (32) by a fastener.

5. The pre-stressed opening straightener frame according to claim 2, characterized in that the upper frame window (12) of the upper frame (1) is provided with a cuboid lock plate position detection switch (13) and the upper surface of the lower frame (4) in the corresponding position is provided with an upper frame position detection switch (14).

6. The pre-stressed opening straightener frame according to claim 1, characterized in that the rotation angle of the second piston rod (32) is 90 degrees for every stroke of the rotation locking cylinder (3).

7. The pre-stressed opening straightener frame according to claim 1, characterized in that a limiting mechanism (2) is arranged between the upper frame (1) and the lower frame (4), and the limiting mechanism (2) is arranged near the side of the rotation locking cylinder.

8. The pre-stressed opening type straightener frame according to claim 1, characterized in that a gap eliminating mechanism (8) for improving the straightening accuracy is further provided between the upper frame (1) and the lower frame (4), and the gap eliminating mechanism (8) is provided near the revolving unit (9).

9. The pre-stressed opening straightener frame according to claim 8, characterized in that the anti-backlash mechanism (8) comprises a cylindrical housing (81) fixedly arranged on top of the lower frame (4), a disc spring set (82) is placed in a chamber of the cylindrical housing (81); the disc spring type air compressor is characterized in that a stepped guide rod (83) is arranged in the cavity of the cylindrical shell (81) and positioned at the top of the disc spring group (82), a gland (84) is fixedly connected to the top of the cylindrical shell (81), one side of the large end of the guide rod (83) is constrained in the cavity of the cylindrical shell (81) through the cooperation of the gland (84) and the cylindrical shell (81), and the top of the guide rod (83) is in contact with the lower surface of the upper frame (1) through the reaction force generated by the disc spring group (82).

10. The pre-stressed opening straightener frame according to claim 1, characterized in that an upper roll box pressing mechanism (11) is arranged on the upper frame (1), and the bottom end of the upper roll box pressing mechanism (11) is fixedly connected with the upper roll box (10).