A crown adjustment mechanism for working rolls of a straightening machine

Abstract

The invention discloses a convexity adjustment mechanism for a working roll of a straightening machine, and relates to the field of plate straightening equipment. The convexity adjustment mechanism for the working roll of the straightening machine comprises: a transmission shaft, a plurality of convexity adjusters, a working roll, and supporting rolls corresponding to each convexity adjuster; the transmission shaft, the supporting rolls and the working rolls are axially parallel; the convexity adjuster comprises a sleeve, a cam and a controller; a through hole is provided on the cam, the sleeve is installed in the through hole, and the cam is sleeved on the transmission shaft through the sleeve; the sleeve is connected to the controller, and a clamping claw is provided at one end of the sleeve; after the controller is powered on, the sleeve is driven to move along the axial direction of the transmission shaft until the clamping claw cooperates with the through hole to clamp the transmission shaft, so that the transmission shaft drives the cam to rotate and adjusts the convexity of the supporting roll; the working roll is in contact with the supporting roll, and the working roll is used to adjust the shape defects of the processed material based on the convexity of the supporting roll.

Description

Technical Field

[0001] The invention relates to the field of plate straightening equipment, and in particular to a crown adjustment mechanism for a working roll of a straightening machine. Background Art

[0002] Wide and thick plates are widely used in key national projects, national defense construction and various infrastructure fields, involving various industries such as ships, bridges, electricity, automobiles, chemicals, machinery, construction and oil pipelines. In order to ensure the flatness and stress elimination of the plate, the straightening machine has become a key finishing equipment, and its performance is directly related to the quality of the material surface and the flatness of the entire plate.

[0003] At present, in actual production applications, the crown adjustment of the straightening machine mainly relies on the hydraulic cylinder to push the wedge block to adjust the crown of the support roller, and then adjust the crown of the working roller online. However, this adjustment method usually uses a set of adjustment mechanisms for multiple support rollers, and cannot adjust the crown of each support roller online separately.

[0004] Therefore, how to achieve flexible and dynamic adjustment of the convexity of each supporting roller on the straightening machine, thereby improving the straightening accuracy and surface quality of the plate and reducing the residual stress of the plate after straightening has become a technical problem that the technical personnel of this application urgently need to solve. Summary of the invention

[0005] The object of the present invention is to provide a straightening machine working roller crown adjustment mechanism to achieve flexible and dynamic adjustment of the crown of each supporting roller on the straightening machine, thereby improving the straightening accuracy and surface quality of the plate and reducing the residual stress of the plate after straightening.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A straightening machine working roll crown adjustment mechanism, comprising:

[0008] A transmission shaft, a plurality of crown adjusters, a working roll, and a support roll corresponding to each of the crown adjusters; the transmission shaft, the support roll, and the working roll are axially parallel;

[0009] The convexity adjuster comprises a sleeve, a cam and a controller; the cam is provided with a through hole, the sleeve is installed in the through hole, and the cam is sleeved on the transmission shaft through the sleeve; the sleeve is connected to the controller, and a clamping claw is provided at one end of the sleeve;

[0010] After the controller is powered on, the sleeve is driven to move along the axial direction of the transmission shaft until the clamping claw cooperates with the through hole to clamp the transmission shaft, so that the transmission shaft drives the cam to rotate and adjust the convexity of the support roller;

[0011] The working roll is in contact with the backup roll, and the working roll is used to adjust a shape defect of a processed material based on a crown of the backup roll.

[0012] In an optional embodiment of the present application, a detector is also included;

[0013] The detector is used to measure the plate shape of the processed material, determine the defect position of the processed material where the plate shape defect exists, and send a power-on signal to the controller of the convexity regulator corresponding to the defect position to power on the controller.

[0014] In an optional implementation of the present application, the detector includes: a laser rangefinder or a plate shape measuring instrument.

[0015] In an optional implementation manner of the present application, the controller comprises: a card slot, a shift fork, an armature, and an electromagnet; the armature is mounted on the shift fork;

[0016] The clamping slot is sleeved on the other end of the sleeve, and the shifting fork is clamped in the clamping slot;

[0017] After the controller is powered on, the electromagnet attracts the armature, so that the armature drives the shift fork to move, and then drives the sleeve to move, until the clamping claw provided at one end of the sleeve clamps the transmission shaft.

[0018] In an optional implementation manner of the present application, the slot is a slot nut; the other end of the sleeve is provided with a thread; and the slot nut is sleeved on the other end of the sleeve through the thread.

[0019] In an optional implementation manner of the present application, the controller further includes: a transposition base, a return spring and a guide rod;

[0020] The return spring and the shift fork are sleeved on the guide rod, and the guide rod and the electromagnet are fixed on the shift base;

[0021] After the controller is powered on, the electromagnet attracts the armature, so that the armature drives the shift fork to move, thereby driving the sleeve to move and contracting the return spring;

[0022] After the controller is powered off, the return spring in a contracted state applies a thrust to the shift fork, so that the shift fork is reset, thereby driving the sleeve to reset.

[0023] In an optional embodiment of the present application, the transposition base is a U-shaped base;

[0024] The electromagnet is fixed on one end of the U-shaped base, and the shift fork is sleeved on the other end of the U-shaped base.

[0025] In an optional embodiment of the present application, the through hole of the cam is provided with a spline groove; the middle part of the sleeve is provided with a spline;

[0026] The cam is sleeved on the sleeve through the spline and the spline groove.

[0027] In an optional implementation manner of the present application, the straightening machine working roll crown adjustment mechanism further includes a motor; the motor is used to drive the transmission shaft to rotate.

[0028] In an optional implementation manner of the present application, a coupling is installed at one end of the transmission shaft, and the coupling is meshingly connected to the output shaft of the motor via a bevel gear pair.

[0029] Compared with the prior art, the convexity adjustment mechanism of the working roll of the straightening machine provided by the present invention is provided with a plurality of convexity adjusters and supporting rolls corresponding to the convexity adjusters on the transmission shaft, and the relative position of the cam and the sleeve in the convexity adjuster is controlled by a controller, so that the clamping claw in the sleeve cooperates with the through hole in the sleeve to clamp the transmission shaft when necessary, and the cam in the convexity adjuster is driven to rotate by the transmission shaft, thereby adjusting the convexity of the supporting roll corresponding to the convexity adjuster, so that the working roll can adjust the shape defects of the processed material based on the convexity of the supporting roll. Flexible and dynamic adjustment of the convexity of each supporting roll on the straightening machine is realized, thereby improving the straightening accuracy and surface quality of the plate and reducing the residual stress of the plate after straightening. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 A schematic diagram of the structure of a straightening machine provided by the prior art of this application;

[0032] Figure 2 A schematic diagram of a straightening structure provided in an embodiment of the present application;

[0033] Figure 3 A schematic diagram of the structure of a convexity regulator provided in an embodiment of the present application;

[0034] Figure 4 A sectional view of a cam provided in an embodiment of the present application;

[0035] Figure 5A schematic diagram of the structure of the cam and sleeve provided in an embodiment of the present application.

[0036] Reference numerals:

[0037] 1-working roller; 2-supporting roller; 3-bevel gear pair; 4-motor; 5-coupling; 6-transmission shaft; 7-cam; 8-sleeve; 9-slot; 10-shift fork; 11-reset spring; 12-electromagnet; 13-shift base; 14-clamping claw; 15-armature; 16-guide rod; 17-spline groove; 18-spline; 19-thread; a-convexity adjuster; b-controller; c-through hole; 20-entry section; 21-tightening section. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0041] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Wide and thick plates are widely used in key national projects, national defense construction and various infrastructure fields, involving various industries such as ships, bridges, electricity, automobiles, chemicals, machinery, construction and oil pipelines. In order to ensure the flatness and stress elimination of the plate, the straightening machine has become a key finishing equipment, and its performance is directly related to the quality of the material surface and the flatness of the entire plate.

[0044] At present, in actual production applications, the crown adjustment of the straightening machine working roll mainly relies on the hydraulic cylinder to push the wedge block to adjust the crown of the support roll, and then adjust the crown of the working roll online. Please refer to Figure 1 , Figure 1 The present invention is a schematic structural diagram of a crown adjustment mechanism for a working roll of a straightening machine provided in the prior art of the present application.

[0045] like Figure 1 As shown, the convexity adjustment mechanism of the working roll of the straightening machine in the prior art includes: stacked wedge blocks, backing bearings, working rolls and hydraulic cylinders, wherein the backing bearings are used as support rolls of the convexity adjustment mechanism of the working roll of the straightening machine; one of the stacked wedge blocks is connected to the hydraulic cylinder, and the other is fixed.

[0046] In the actual application process, Figure 1 A plate is clamped between the roll gaps of the two working rolls shown, and the thickness of the plate is adjusted by the rotation of the working rolls. When the thickness of the plate is uneven, the motor pushes the wedge block connected to it to drive the backing bearing to move toward the working roll, thereby adjusting the convexity of the working roll to make the thickness of the plate uniform.

[0047] However, the backing bearings in this adjustment mechanism share a set of wedge blocks. When the wedge blocks are moved by the hydraulic cylinder, all the backing bearings connected to the wedge blocks will move together, thereby adjusting the crown of the working roll. It can be seen that in the prior art straightening machine working roll adjustment mechanism, the backing bearing is used as the support roll and the crown adjustment process of the working roll in conjunction with the wedge blocks is not flexible.

[0048] Therefore, how to achieve flexible and dynamic adjustment of the convexity of each supporting roller on the straightening machine, thereby improving the straightening accuracy and surface quality of the plate and reducing the residual stress of the plate after straightening has become a technical problem that the technical personnel of this application urgently need to solve.

[0049] In order to solve the above technical problems, the present application provides a crown adjustment mechanism for a working roll of a straightening machine.

[0050] Please refer to Figure 2 , Figure 2 A schematic structural diagram of the crown adjustment mechanism of the working roll of the straightening machine provided in an embodiment of the present application.

[0051] like Figure 2 As shown, the straightening machine working roll crown adjustment mechanism comprises:

[0052] A transmission shaft 6, a plurality of crown adjusters a, a working roll 1, and a support roll 2 corresponding to each crown adjuster a; wherein the transmission shaft 6, the support roll 2 and the working roll 1 are axially parallel.

[0053] In actual application, when the convexity of a certain position of the plate in the roll gap of the working roll 1 is abnormal, the convexity adjuster a corresponding to the position will rotate with the transmission shaft 6, thereby changing the convexity of the support roll 2 corresponding to the convexity adjuster a, so that after the working roll 1 contacts the support roll 2, the shape defect of the processed material in the roll gap of the working roll 1 is adjusted based on the convexity of the support roll 2.

[0054] The abnormal convexity of the plate in the roll gap of the working roll 1 can be obtained by monitoring the shape of the plate and the roll convexity using a laser rangefinder or a plate shape measuring instrument.

[0055] For further information, please refer to Figure 3 , Figure 3 A schematic diagram of the structure of a convexity adjuster provided in an embodiment of the present application.

[0056] like Figure 3 As shown, the convexity adjuster a includes a sleeve 8, a cam 7 and a controller b; a through hole c is provided on the cam 7, the sleeve 8 is installed in the through hole c, and the cam 7 is sleeved on the transmission shaft 6 through the sleeve.

[0057] The sleeve 8 is connected to the controller b, and a clamping claw 14 is provided at one end of the sleeve 8; after the controller b is energized, the sleeve 8 is driven to move axially along the transmission shaft 6 until the clamping claw 14 cooperates with the through hole c to clamp the transmission shaft 6, so that the transmission shaft 6 drives the cam 7 to rotate to adjust the convexity of the supporting roller 2.

[0058] As mentioned above, the controller b is used to drive the sleeve 8 to move axially along the transmission shaft 6 until the clamping claws 14 cooperate with the through holes c to clamp the transmission shaft 6.

[0059] Specifically, in order to enable the clamping claw 14 to cooperate with the through hole c to clamp the transmission shaft, the through hole c includes: an entry section and a tightening section of the clamping claw 14 .

[0060] Please refer to Figure 4 , Figure 4 A cross-sectional view of a cam provided in an embodiment of the present application.

[0061] like Figure 4 As shown, the through hole c of the cam includes: an entry section 20 and a tightening section 21;

[0062] The through hole radius of the entry section 20 is larger than the through hole radius of the tightening section 21 , and an inclined surface is provided between the entry section 20 and the tightening section 21 so that the clamping claw 14 can smoothly transition from the entry section 20 to the tightening section 21 during the movement.

[0063] Furthermore, the controller b comprises: a slot 9 , a shift fork 10 , an armature 15 and an electromagnet 12 , wherein the armature 15 is mounted on the shift fork 10 .

[0064] Specifically, the slot 9 is sleeved on the other end of the sleeve 8 , and the shift fork 10 is clamped in the slot 9 .

[0065] After the controller b is powered on, the electromagnet 12 attracts the armature 15, so that the armature 15 drives the shift fork 10 to move toward the electromagnet 12, and then drives the sleeve 8 to move toward the electromagnet 12 until the clamping claw 14 provided at one end of the sleeve 8 clamps the transmission shaft 6.

[0066] Furthermore, the controller b also includes: a transposition base 13 , a return spring 11 and a guide rod 16 .

[0067] The return spring 11 and the shift fork 10 are sleeved on the guide rod 16 , and the guide rod 16 and the electromagnet 12 are fixed on the shift base 13 .

[0068] Specifically, the transposition base 13 is a U-shaped base, the electromagnet 12 is fixed to one end of the U-shaped base, and the transposition fork 10 is sleeved on the other end of the U-shaped base.

[0069] After the controller is powered on, the electromagnet 12 attracts the armature 15 so that the armature 15 drives the shift fork 10 to move, thereby driving the sleeve 8 to move and contracting the return spring 11.

[0070] After the controller is powered off, the return spring 11 in the contracted state applies a thrust to the shift fork 10, driving the sleeve 8 to return to its original position.

[0071] In an optional embodiment of the present application, the slot 9 is specifically a slot nut, the other end of the sleeve 8 is provided with a thread, and the slot nut is sleeved on the other end of the sleeve 8 through the thread.

[0072] In the embodiment of the present application, in order to enable the sleeve 8 to move axially along the transmission shaft 6, and after the clamping claws 14 clamp the transmission shaft 6, the transmission shaft 6 can drive the cam 7 to rotate together, the through hole c in the cam 7 is provided with a spline groove; the middle part of the sleeve 8 is provided with a spline.

[0073] For further information, please refer to Figure 5 , Figure 5 A schematic diagram of the structure of the cam and sleeve provided in an embodiment of the present application.

[0074] like Figure 5 As shown, the cam includes a through hole c, and a spline groove 17 is provided in the through hole c.

[0075] The sleeve includes: a clamping claw 14 , a spline 18 and a thread 19 .

[0076] In actual application, the slot nut of the controller b cooperates with the thread 19 to connect the shift fork 10 of the controller b to the sleeve 8; during the axial movement of the sleeve 8 along the transmission shaft 6, the spline 18 on the sleeve 8 enters the spline groove 17 in the through hole c until the clamping claw 14 enters the through hole c and the clamping claw 14 clamps the transmission shaft 6. The transmission shaft 6 drives the sleeve 8 to rotate together, and at the same time, the spline on the sleeve 8 cooperates with the spline groove on the cam 7 to provide a rotational force for the cam 7, so as to drive the cam 7 to rotate together through the sleeve 8.

[0077] Please refer to further Figure 2 The straightening structure further includes: a motor 4, which is used to drive a transmission shaft 6 to rotate; a coupling 5 is installed at one end of the transmission shaft 6.

[0078] The coupling 5 is meshed with the motor output shaft through the bevel gear pair 3; when the output shaft of the motor 4 rotates, the bevel gear pair drives the transmission shaft 6 to rotate at the same time.

[0079] In summary, the crown adjustment mechanism of the working roll of the straightening machine provided in the embodiment of the present application is provided with a plurality of crown adjusters and supporting rolls corresponding to the crown adjusters on the transmission shaft, and the relative position of the cam and the sleeve in the crown adjuster is controlled by the controller, so that the clamping claw in the sleeve cooperates with the through hole in the sleeve to grasp the transmission shaft when necessary, and the cam in the crown adjuster is driven to rotate by the transmission shaft, thereby adjusting the crown of the supporting roll corresponding to the crown adjuster, so that the working roll can adjust the shape defects of the processed material based on the crown of the supporting roll. Flexible and dynamic adjustment of the crown of each supporting roll on the straightening machine is realized, thereby improving the straightening accuracy and surface quality of the plate and reducing the residual stress of the plate after straightening.

[0080] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0081] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A crown adjustment mechanism for a working roll of a straightening machine, characterized in that: include: A transmission shaft, a plurality of crown adjusters, a working roll, and a support roll corresponding to each of the crown adjusters; the transmission shaft, the support roll, and the working roll are axially parallel; The convexity adjuster comprises a sleeve, a cam and a controller; the cam is provided with a through hole, the sleeve is installed in the through hole, and the cam is sleeved on the transmission shaft through the sleeve; the sleeve is connected to the controller, and a clamping claw is provided at one end of the sleeve; After the controller is powered on, the sleeve is driven to move along the axial direction of the transmission shaft until the clamping claw cooperates with the through hole to clamp the transmission shaft, so that the transmission shaft drives the cam to rotate and adjust the convexity of the support roller; The working roll is in contact with the backup roll, and the working roll is used to adjust a shape defect of a processed material based on a crown of the backup roll.

2. The crown adjustment mechanism for the working roll of the straightening machine according to claim 1, characterized in that: Also includes a detector; The detector is used to measure the plate shape of the processed material, determine the defect position of the processed material where the plate shape defect exists, and send a power-on signal to the controller of the convexity regulator corresponding to the defect position to power on the controller.

3. The crown adjustment mechanism for the working roll of the straightening machine according to claim 2, characterized in that: The detector includes: a laser rangefinder or a plate shape measuring instrument.

4. The crown adjustment mechanism for the working roll of the straightening machine according to claim 1, characterized in that: The controller comprises: a card slot, a shift fork, an armature, and an electromagnet; the armature is mounted on the shift fork; The clamping slot is sleeved on the other end of the sleeve, and the shifting fork is clamped in the clamping slot; After the controller is powered on, the electromagnet attracts the armature, so that the armature drives the shift fork to move, and then drives the sleeve to move, until the clamping claw provided at one end of the sleeve clamps the transmission shaft.

5. The crown adjustment mechanism for the working roll of the straightening machine according to claim 4, characterized in that: The slot is a slot nut; the other end of the sleeve is provided with a thread; the slot nut is sleeved on the other end of the sleeve through the thread.

6. The crown adjustment mechanism for the working roll of the straightening machine according to claim 4, characterized in that: The controller further includes: a transposition base, a return spring and a guide rod; The return spring and the shift fork are sleeved on the guide rod, and the guide rod and the electromagnet are fixed on the shift base; After the controller is powered on, the electromagnet attracts the armature, so that the armature drives the shift fork to move, thereby driving the sleeve to move and contracting the return spring; After the controller is powered off, the return spring in a contracted state applies a thrust to the shift fork, so that the shift fork is reset, thereby driving the sleeve to reset.

7. The crown adjustment mechanism for the working roll of the straightening machine according to claim 6, characterized in that: The transposition base is a U-shaped base; The electromagnet is fixed on one end of the U-shaped base, and the shift fork is sleeved on the other end of the U-shaped base.

8. The crown adjustment mechanism for the working roll of the straightening machine according to claim 1, characterized in that: The through hole of the cam is provided with a spline groove; the middle part of the sleeve is provided with a spline; The cam is sleeved on the sleeve through the spline and the spline groove.

9. The crown adjustment mechanism for the working roll of the straightening machine according to claim 1, characterized in that: Also includes: Motor; the motor is used to drive the transmission shaft to rotate.

10. The crown adjustment mechanism for the working roll of the straightening machine according to claim 9, characterized in that: A coupling is installed at one end of the transmission shaft, and the coupling is meshedly connected with the output shaft of the motor through a bevel gear pair.

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