CN113477723A - Rolling continuous feeding method, feeding device and planetary rolling mill - Google Patents
Rolling continuous feeding method, feeding device and planetary rolling mill Download PDFInfo
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- CN113477723A CN113477723A CN202110842546.1A CN202110842546A CN113477723A CN 113477723 A CN113477723 A CN 113477723A CN 202110842546 A CN202110842546 A CN 202110842546A CN 113477723 A CN113477723 A CN 113477723A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims description 32
- 230000033001 locomotion Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 238000012545 processing Methods 0.000 abstract description 12
- 239000002699 waste material Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 10
- 230000001133 acceleration Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
- B21B39/10—Arrangement or installation of feeding rollers in rolling stands
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention provides a rolling continuous feeding method, a feeding device and a planetary rolling mill; the feeding method comprises the following steps: at least three pinch rolls are encircled around the blank to rotate, the circumference of the outer side surface of each pinch roll is tangent to the blank in the length direction of the blank, so that the pinch rolls rotate to drive the blank to be transmitted and limit the axis of the blank; when the pinch rolls rotate, all the pinch rolls rotate around the blank transmission direction together, so that the blank rotates at the rotation speed in the rolling state while being transmitted; the pinch roll is opened or tightened by adjusting the distance between the pinch roll and the blank transmission axis. The feeding method can realize continuous feeding of the blanks, reduce the waste of waiting time, effectively improve the rolling efficiency, realize the rotation of the blanks according to the rotation speed in the rolling state during the transmission, and improve the rolling process effect and the product processing quality.
Description
Technical Field
The invention relates to the technical field of rolling processing, in particular to a rolling continuous feeding method, a feeding device and a planetary rolling mill.
Background
In the field of copper pipe processing, the cast blank needs to be rolled first. The existing rolling feeding mode is that blanks to be rolled are turned down one by one from a rolling material rack to a material pushing bed in a feeding area of rolling equipment; the material pushing bed is provided with a material pushing trolley; the pushing trolley is driven by a chain transmission mechanism to move forward and backward in a reciprocating manner on a track of the pushing bed; the pushing small handle feeds the blank to be rolled into the rolling deformation area of the main machine.
During the blank entering the rolling deformation zone, a horizontal thrust is required to be provided for the blank from the outside, and the blank can rotate during the rolling process. The current solutions are: the pushing trolley is provided with a freely rotatable pushing rod to push against the tail end of the blank, so that the horizontal pushing force required by rolling is applied to the tail part of the blank, and the rotation of the blank is not influenced.
However, the prior scheme has the following defects: the length of the blank for general rolling is 25 meters; therefore, the stroke of the pushing trolley and relevant parameters of the chain transmission part are required to meet the requirement of feeding the blank with the length of 25 meters, and the structure of the whole feeding system becomes complicated. After each pushing is finished, the pushing trolley needs to quickly return to the rear end of the pushing bed from the front end of the pushing bed, the distance of the pushing trolley is approximately equal to the length of the tube blank, and the time is long. As the pushing trolley needs to frequently move back and forth between the front end and the rear end of the pushing bed during rolling, various moving parts matched with the bed body of the pushing trolley are quickly abraded, the matching precision is reduced, the problems that the feeding trolley is unstable in walking, easy to shake and the like are caused, the failure rate of equipment use is greatly increased, and the maintenance cost is increased.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a rolling continuous feeding method, a feeding device and a planetary rolling mill; the feeding method can realize continuous feeding of the blanks, reduce the waste of waiting time, effectively improve the rolling efficiency, realize the rotation of the blanks according to the rotation speed in the rolling state during the transmission, and improve the rolling process effect and the product processing quality.
In order to achieve the purpose, the invention is realized by the following technical scheme: a rolling continuous feeding method is characterized in that: at least three pinch rolls are encircled around the blank to rotate, the circumference of the outer side surface of each pinch roll is tangent to the blank in the length direction of the blank, so that the pinch rolls rotate to drive the blank to be transmitted and limit the axis of the blank; when the pinch rolls rotate, all the pinch rolls rotate around the blank transmission direction together, so that the blank rotates at the rotation speed in the rolling state while being transmitted;
by adjusting the distance between all the pinch rollers and the blank transmission axis, the pinch rollers are opened when all the pinch rollers move and adjust back to the blank transmission axis, or the pinch rollers are tightened when all the pinch rollers move and adjust towards the blank transmission axis, so that the next blank is continuously fed.
According to the feeding method, before the blank enters the pinch space between the pinch rollers, all the pinch rollers are opened to leave enough space for the blank to easily enter; after the head end of the blank enters the pinch space, all pinch rollers are tightened to clamp the blank, each pinch roller respectively rotates to drive the blank to transmit and limit the position of the axis of the blank, and simultaneously all the pinch rollers rotate around the transmission direction of the blank together to enable the blank to rotate according to the rotating speed in a rolling state while transmitting. And when the blank completely leaves the pinch rolls, opening all the pinch rolls to allow the next blank to enter, and repeating the pinch process.
The feeding method can immediately transmit the next blank after the previous blank leaves the pinch roll, and compared with the traditional method that the waiting time for the long-distance return of the pushing trolley is consumed when the blank is pushed by the pushing trolley, the continuous feeding of the material to be rolled is realized, the waiting time waste can be reduced, and the rolling efficiency is effectively improved; the blank rotates according to the rotating speed in the rolling state while being transmitted, so that the influence on the rolling effect caused by overlarge instantaneous rotating acceleration when the blank is fed into the main machine for rolling the deformation area is avoided, the deformation caused by the fact that the speeds of the blank in the feeding area and the main machine for rolling the deformation area are asynchronous is also avoided, and the rolling process effect and the product processing quality are improved.
The utility model provides a rolling continuous feeding device which characterized in that: the clamping device comprises a base, a first hollow cylinder, a second hollow cylinder, at least three clamping swing arms and pinch rolls respectively arranged on the clamping swing arms; the first hollow cylinder and the second hollow cylinder are respectively and rotatably arranged on the base; the first hollow cylinder and the second hollow cylinder are both provided with cylinder cavities for the blanks to pass through; the centers of the cylinder cavities of the first hollow cylinder and the second hollow cylinder are respectively distributed along the blank transmission direction; an operation space for clamping and conveying the blank is reserved between the first hollow cylinder and the second hollow cylinder;
all the clamping swing arms are uniformly distributed in parallel around the blank transmission axis respectively; one end of each clamping swing arm is hinged to the first hollow cylinder, and the other end of each clamping swing arm is connected with the second hollow cylinder through a tensioning mechanism, so that all the clamping swing arms can be opened or tightened simultaneously; the position of each pinch roll corresponds to the operation space respectively, so that the blank is contacted with the pinch rolls in the operation space; each pinch roll is connected with a pinch drive mechanism respectively to realize the autorotation of the pinch roll so as to enable the blank to be transmitted along the blank transmission direction under the driving of the rotation of the pinch roll; the first hollow cylinder or the second hollow cylinder is connected with a rotary driving mechanism so as to realize that the first hollow cylinder, the second hollow cylinder and each clamping swing arm rotate around the blank transmission axis together to drive the blank to rotate.
The working principle of the feeding device is as follows: before the blank enters a pinch space between the pinch rollers, all the pinch rollers are opened under the driving of a tensioning mechanism to leave enough space for the blank to enter easily; after the head end of the blank enters the pinch space, all pinch rollers are tightened by the tensioning mechanism to clamp the blank, the pinch driving mechanism respectively drives each pinch roller to rotate to drive the blank to be transmitted, and the position of the axis of the blank can be limited as each pinch roller is uniformly distributed around the blank; and meanwhile, the rotary driving mechanism drives the hollow cylinder I/hollow cylinder II to drive all the clamping swing arms to rotate, so that all the pinch rolls rotate around the blank transmission direction together, and the blank rotates at the rotation speed in a rolling state while being transmitted. And when the blank completely leaves the pinch rolls, opening all the pinch rolls to allow the next blank to enter, and repeating the pinch process.
The feeding device can immediately convey the next blank after the previous blank leaves the pinch roll, and compared with the traditional waiting time that the pushing trolley needs to be consumed to return remotely when the blank is pushed by the pushing trolley, the feeding device realizes the continuous feeding of the material to be rolled, can reduce the waste of the waiting time and effectively improve the rolling efficiency; the device does not need to move back and forth frequently in a long distance like a pushing trolley, so that the device cost and the processing cost can be reduced, the abrasion of moving parts is reduced, and the maintenance cost is reduced. The blank rotates according to the rotating speed in the rolling state while being transmitted, so that the influence on the rolling effect caused by overlarge instantaneous rotating acceleration when the blank is fed into the main machine for rolling the deformation area is avoided, the deformation caused by the fact that the speeds of the blank in the feeding area and the main machine for rolling the deformation area are asynchronous is also avoided, and the rolling process effect and the product processing quality are improved.
Preferably, the tensioning mechanism comprises a pressing piece and a pressing adjusting assembly, wherein the number of the pressing piece is matched with that of the clamping swing arms; the clamping swing arm forms an inclined plane forming an included angle with the blank conveying direction; each pressing piece is respectively pressed above the inclined plane of each clamping swing arm; each pressing piece is respectively connected with the pressing adjusting assembly to realize position adjustment of the pressing pieces to adjust the pressing positions of the pressing pieces on the inclined plane, so that the inclination angles of the clamping swing arms are adjusted to realize simultaneous opening or simultaneous tightening of all the clamping swing arms; and a reset elastic element is arranged between each clamping swing arm and the first hollow cylinder, so that each pressing piece is respectively kept in contact with the inclined plane on the clamping swing arm.
Preferably, the pressing adjustment assembly comprises a holding cylinder, a sliding sleeve and a moving driving module; the sliding sleeve and the holding cylinder are sequentially sleeved outside the hollow cylinder from inside to outside; a limiting structure used for limiting the synchronous rotation of the sliding sleeve and the hollow cylinder II is arranged between the sliding sleeve and the hollow cylinder II; each pressing piece is arranged on the sliding sleeve respectively; the sliding sleeve and the holding cylinder are rotatably connected through a bearing; the holding cylinder is connected with the moving driving module to realize reciprocating movement along the blank conveying direction, so that the sliding sleeve and the pressing piece are pushed to realize position adjustment of the pressing piece.
When the blank is conveyed, the moving driving module pushes the holding cylinder to enable the sliding sleeve and the pressing piece on the sliding sleeve to move along the blank conveying direction, and the pinch rolls of the clamping swing arms are pressed and held by the pressing piece to abut against the blank to realize blank clamping; the pinch roll automatically rotates to realize blank transmission; meanwhile, the hollow cylinder I/hollow cylinder II rotates under the driving of the hollow cylinder II/hollow cylinder I, the clamping swing arm and the sliding sleeve rotate along with the hollow cylinder II/hollow cylinder I, and the holding cylinder is fixed. When the clamping swing arm is opened, the movable driving module pushes the holding cylinder to enable the sliding sleeve and the pressing piece on the sliding sleeve to move, the distance between the pressing piece and the blank transmission axis is increased, and the clamping swing arm is opened under the reset action of the reset elastic element. The tensioning mechanism can effectively realize the opening and the tightening of the clamping swing arm and stably clamp and convey the blank, and meanwhile, the tensioning mechanism with the structure cannot prevent the clamping swing arm from rotating around the blank conveying axis; thereby simultaneously realizing the transmission + rotation function.
Preferably, the mobile driving module is a pressing oil cylinder; the cylinder barrel of the pressing oil cylinder is arranged on the base, and the telescopic rod of the pressing oil cylinder is connected with the holding barrel.
When the pressing oil cylinder drives the sliding sleeve to move forwards, the pressing piece on the sliding sleeve is driven to move on the inclined surface of the clamping swing arm, so that the clamping swing arm swings and opens, and the pinch roll is opened; when the pressing oil cylinder drives the sliding sleeve to move backwards, the pressing piece on the sliding sleeve is driven to move on the inclined surface of the clamping swing arm, so that the clamping swing arm swings to be closed, the pinch roll is tightened, and the next blank is continuously fed.
Preferably, the clamping swing arm is provided with an installation cavity; the pinch roll is rotatably connected with the wall of the mounting cavity through a roll shaft; the roll shafts are arranged perpendicular to the blank conveying direction; the pinch roll protrudes out of one side of the clamping swing arm close to the blank. The clamping swing arm of this design can make the pinch roll set up wherein firmly, is favorable to providing stable clamping-force to the blank, improves blank motion accuracy.
Preferably, the clamping and conveying driving mechanism is a hydraulic motor arranged on the clamping swing arm; the hydraulic motor is connected with the pinch roll; the hydraulic motor is connected with an external liquid supply device through a pipe body. The pinch roll is driven by a hydraulic motor, so that the requirements on the motion characteristics of low speed and large torque of the pinch roll during blank feeding can be met; and the hydraulic motor has compact structure and small occupied space. The connection of the tube of the hydraulic motor to the external liquid supply means can be made by the known techniques, for example by means of hydraulic swivel joints.
Preferably, the rotary driving mechanism is a rotary motor arranged below the base; the rotary motor is connected with the first hollow cylinder or the second hollow cylinder through a transmission belt.
Preferably, the clamping swing arms are three and are arranged at an interval of 120 degrees.
A planetary rolling mill is characterized in that: comprises the rolling continuous feeding device; the number of the rolling continuous feeding devices is at least two, and each rolling continuous feeding device is arranged along the blank transmission direction.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the invention, a next blank can be loaded immediately after the previous blank is loaded, and compared with the traditional waiting time that the pushing trolley needs to be consumed to return remotely when the blank is pushed by the pushing trolley, the continuous loading of the material to be rolled is realized, the waiting time waste can be reduced, and the rolling efficiency is effectively improved;
2. in the invention, the blank can rotate according to the rotating speed in the rolling state while being transmitted, so that the influence on the rolling effect caused by overlarge instantaneous rotating acceleration when the blank is fed into the main machine for rolling the deformation zone is avoided, the deformation caused by the asynchronous speeds of the blank in the feeding zone and the main machine for rolling the deformation zone can be avoided, and the rolling process effect and the product processing quality are improved;
3. according to the invention, a remote transmission device and a material pushing trolley are omitted, the structure of the feeding device is simplified, and the equipment cost and the processing cost are reduced; the abrasion caused by the long-distance frequent movement of moving parts can be avoided, the failure rate of equipment use is reduced, and the maintenance cost is reduced.
Drawings
FIG. 1 is a schematic structural view of a loading device according to the present invention;
FIG. 2 is a second schematic structural view of the feeding device of the present invention;
FIG. 3 is a third schematic view of the feeding device of the present invention;
FIG. 4 is a schematic cross-sectional view of a loading device of the present invention;
FIG. 5 is a schematic structural view of a clamping swing arm in the feeding device of the present invention;
wherein, 1 is a blank, 2 is a hydraulic rotary joint, 3 is a base, 4 is a clamping swing arm, 5 is a sliding sleeve, 6 is a holding cylinder, 7 is a pressing oil cylinder, 8 is a pressing piece, 9 is a hydraulic motor, 10 is a hollow cylinder I, 11 is a hollow cylinder II, 12 is a reset elastic element, 13 is a transmission belt, 14 is a rotary motor, 15 is a pinch roll, 16 is a hinge shaft, and 17 is a pipe body.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Examples
The embodiment provides a rolling continuous feeding method, at least three pinch rolls are encircled around a blank to rotate, the circumference of the outer side surface of each pinch roll is tangent to the blank in the length direction of the blank, so that the rotation of the pinch rolls drives the blank to be transmitted, and the axis of the blank is limited; when the pinch rolls rotate, all the pinch rolls rotate around the blank transmission direction together, so that the blank rotates at the rotation speed in the rolling state while being transmitted;
the distance between all the pinch rollers and the blank transmission axis is adjustable, so that the pinch rollers are opened when all the pinch rollers move and adjust back to the blank transmission axis, or the pinch rollers are tightened when all the pinch rollers move and adjust towards the blank transmission axis, and continuous feeding of the next blank is matched.
According to the feeding method, before the blank enters the pinch space between the pinch rollers, all the pinch rollers are opened to leave enough space for the blank to easily enter; after the head end of the blank enters the pinch space, all pinch rollers are tightened to clamp the blank, each pinch roller respectively rotates to drive the blank to transmit and limit the position of the axis of the blank, and simultaneously all the pinch rollers rotate around the transmission direction of the blank together to enable the blank to rotate according to the rotating speed in a rolling state while transmitting. And when the blank completely leaves the pinch rolls, opening all the pinch rolls to allow the next blank to enter, and repeating the pinch process.
The feeding method can immediately transmit the next blank after the previous blank leaves the pinch roll, and compared with the traditional method that the waiting time for the long-distance return of the pushing trolley is consumed when the blank is pushed by the pushing trolley, the continuous feeding of the material to be rolled is realized, the waiting time waste can be reduced, and the rolling efficiency is effectively improved; the blank rotates according to the rotating speed in the rolling state while being transmitted, so that the influence on the rolling effect caused by overlarge instantaneous rotating acceleration when the blank is fed into the main machine for rolling the deformation area is avoided, the deformation caused by the fact that the speeds of the blank in the feeding area and the main machine for rolling the deformation area are asynchronous is also avoided, and the rolling process effect and the product processing quality are improved.
In order to realize the rolling continuous feeding method, the embodiment provides a rolling continuous feeding device, which has a structure as shown in fig. 1 to 5, and includes a base 3, a first hollow cylinder 10, a second hollow cylinder 11, three clamping swing arms 4, and pinch rolls 15 respectively disposed on the clamping swing arms 4.
The first hollow cylinder 10 and the second hollow cylinder 11 are respectively and rotatably arranged on the base 3; the first hollow cylinder 10 and the second hollow cylinder 11 are both provided with cylinder cavities for the blank 1 to pass through; the centers of the cylinder cavities of the first hollow cylinder 10 and the second hollow cylinder 11 are respectively distributed along the transmission direction of the blank 1; an operation space for clamping and conveying the blank 1 is reserved between the first hollow cylinder 10 and the second hollow cylinder 11.
In the embodiment, the number of the clamping swing arms is three, and the clamping swing arms are respectively distributed around the blank 1 transmission axis at intervals of 120 degrees. In practice, the clamping swing arm may be more than four, for example, four, five, six, or even more.
One end of each clamping swing arm 4 is hinged to the first hollow cylinder 10 through a hinge shaft 16, and the other end of each clamping swing arm 4 is connected with the second hollow cylinder 11 through a tensioning mechanism, so that all the clamping swing arms 4 can be opened or tightened simultaneously. Specifically, the tensioning mechanism includes a number of press-down members 8 matching the number of the holding swing arms 4, and a press-down adjustment assembly. The pressing adjusting component comprises a holding cylinder 6, a sliding sleeve 5 and a moving driving module; the moving driving module preferably adopts a pressing oil cylinder 7.
The holding cylinder 6 and the sliding sleeve 5 are sequentially sleeved outside the hollow cylinder II 11 from inside to outside; and a limiting structure used for limiting the synchronous rotation of the sliding sleeve 5 and the hollow cylinder II 11 is arranged between the sliding sleeve 5 and the hollow cylinder II 11, and the limiting structure adopts the prior art, such as a key body. The sliding sleeve 5 and the holding cylinder 6 are rotatably connected through a bearing; the respective hold-down members 8 are arranged on the sliding sleeve 5. The cylinder barrel of the pressing oil cylinder 7 is arranged on the base 3, and the telescopic rod of the pressing oil cylinder 7 is connected with the holding cylinder 6, so that the holding cylinder 6 drives the sliding sleeve 5 to reciprocate along the conveying direction of the blank 1.
The clamping swing arm 4 forms an inclined plane forming an included angle with the conveying direction of the blank 1; each pressing piece 8 is respectively pressed above the inclined plane of each clamping swing arm 4; in the reciprocating movement process of the sliding sleeve 5 along the conveying direction of the blank 1, the position of the pressing piece 8 is adjusted to adjust the pressing piece 8 to be pressed on the inclined plane, so that the inclination angle of the clamping swing arms 4 is adjusted to realize the simultaneous opening or simultaneous tightening of all the clamping swing arms 4. And a reset elastic element 12 is arranged between each clamping swing arm 4 and the hollow cylinder I10, so that each pressing piece 8 is respectively kept in contact with the inclined surface on the clamping swing arm 4.
The clamping swing arm 4 is provided with an installation cavity; the pinch roll 15 is rotatably connected with the wall of the mounting cavity through a roll shaft; the roll shafts are arranged perpendicular to the conveying direction of the blank 1; the pinch roll 15 protrudes out of one side of the clamping swing arm 4 close to the blank 1. The position of each pinch roll 15 corresponds to the operation space respectively, so that the blank 1 is contacted with the pinch rolls 15 in the operation space; each pinch roll 15 is respectively connected with a pinch driving mechanism which is a hydraulic motor 9 arranged on the clamping swing arm 4; the hydraulic motor 9 is connected with the pinch roll 15; the hydraulic motor 9 is connected to an external liquid supply via a tube 17. The connection of the tubular body 17 of the hydraulic motor 9 to the external liquid supply means can be made by the known art, for example by means of the hydraulic swivel joint 2. The self rotation of the pinch roll 15 can enable the blank 1 to be conveyed along the conveying direction of the blank 1 under the driving of the rotation of the pinch roll 15. The hydraulic motor 9 is adopted to drive the pinch roll 15, so that the requirements of the blank 1 on the low-speed and large-torque motion characteristics of the pinch roll 15 during feeding can be met; and the hydraulic motor 9 has compact structure and small occupied space. In addition to the use of hydraulic motors as the pinch drive, other prior art techniques may be used, such as: aiming at the condition that the clamping force requirement is not large, the hydraulic motor can be replaced by a large-torque motor and a speed reducer for combined transmission, and the hydraulic rotary joint is replaced by a conducting ring matched electric brush.
The hollow cylinder II 11 is connected with a rotary driving mechanism; the rotation driving mechanism is preferably a rotary motor 14 disposed below the base 3; the rotary motor 14 is connected with the hollow cylinder II 11 through a transmission belt 13; the first hollow cylinder 10, the second hollow cylinder 11 and the clamping swing arms 4 rotate around the transmission axis of the blank 1 together so as to drive the blank 1 to rotate. In the embodiment, the hollow cylinder II is connected with the rotary driving mechanism; in practice, the hollow cylinder may be connected to the rotary drive mechanism.
The working principle of the feeding device is as follows: before the blank 1 enters the pinch space between the pinch rollers 15, all the pinch rollers 15 are opened under the driving of a tensioning mechanism to leave enough space for the blank 1 to enter easily; after the head end of the blank 1 enters the pinch space, the tensioning mechanism tightens all pinch rollers 15 to clamp the blank 1, the pinch driving mechanism drives each pinch roller 15 to rotate to drive the blank 1 to transmit, and the position of the axis of the blank 1 can be limited because each pinch roller 15 is uniformly distributed around the blank 1; meanwhile, the rotary driving mechanism drives the first hollow cylinder 10/the second hollow cylinder 11 to drive all the clamping swing arms 4 to rotate, so that all the pinch rollers 15 rotate around the blank 1 in the transmission direction, and the blank 1 rotates at the rotation speed in the rolling state during transmission. When the billet 1 has completely left the pinch rolls 15, all the pinch rolls 15 are opened to let the next billet 1 enter, and the pinch process is repeated.
The feeding device can immediately transmit the next blank 1 after the previous blank 1 leaves the pinch roll 15, and compared with the traditional method that the waiting time for the long-distance return of the pushing trolley is consumed when the pushing trolley is used for pushing the blank 1, the feeding device realizes the continuous feeding of the materials to be rolled, can reduce the waste of the waiting time and effectively improve the rolling efficiency; the device does not need to move back and forth frequently in a long distance like a pushing trolley, so that the device cost and the processing cost can be reduced, the abrasion of moving parts is reduced, and the maintenance cost is reduced. The blank 1 rotates according to the rotating speed in the rolling state while being transmitted, so that the influence on the rolling effect caused by overlarge instantaneous rotating acceleration when the blank 1 is fed into a host rolling deformation area is avoided, the deformation caused by the asynchronous speed of the blank 1 in a feeding area and the host rolling deformation area can be avoided, and the rolling process effect and the product processing quality are improved.
When the blank 1 is conveyed, the moving driving module pushes the holding cylinder 6 to enable the sliding sleeve 5 and the pressing piece 8 on the sliding sleeve to move along the conveying direction of the blank 1, and the pinch rollers 15 of the clamping swing arms 4 are pressed and held by the pressing piece 8 to be abutted against the blank 1 so as to clamp the blank 1; the pinch roll 15 rotates automatically to realize the transmission of the blank 1; meanwhile, the hollow cylinder I10/the hollow cylinder II 11 rotate under the driving, the hollow cylinder II 11/the hollow cylinder I10, the clamping swing arm 4 and the sliding sleeve 5 rotate along with the rotation, and the holding cylinder 6 is fixed. When the clamping swing arm 4 is opened, the movable driving module pushes the holding cylinder 6 to enable the sliding sleeve 5 and the pressing piece 8 on the sliding sleeve to move, the distance between the pressing piece 8 and the transmission axis of the blank 1 is increased, and the clamping swing arm 4 is opened under the reset action of the reset elastic element 12. The tensioning mechanism can effectively realize the opening and tightening of the clamping swing arm 4 and stably clamp and convey the blank 1, and meanwhile, the tensioning mechanism does not prevent the clamping swing arm 4 from rotating around the transmission axis of the blank 1; thereby simultaneously realizing the transmission + rotation function.
The embodiment also provides a planetary rolling mill which comprises the rolling continuous feeding device; the number of the rolling continuous feeding devices is at least two, and each rolling continuous feeding device is arranged along the blank transmission direction.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A rolling continuous feeding method is characterized in that: at least three pinch rolls are encircled around the blank to rotate, the circumference of the outer side surface of each pinch roll is tangent to the blank in the length direction of the blank, so that the pinch rolls rotate to drive the blank to be transmitted and limit the axis of the blank; when the pinch rolls rotate, all the pinch rolls rotate around the blank transmission direction together, so that the blank rotates at the rotation speed in the rolling state while being transmitted;
by adjusting the distance between all the pinch rollers and the blank transmission axis, the pinch rollers are opened when all the pinch rollers move and adjust back to the blank transmission axis, or the pinch rollers are tightened when all the pinch rollers move and adjust towards the blank transmission axis, so that the next blank is continuously fed.
2. The utility model provides a rolling continuous feeding device which characterized in that: the clamping device comprises a base, a first hollow cylinder, a second hollow cylinder, at least three clamping swing arms and pinch rolls respectively arranged on the clamping swing arms; the first hollow cylinder and the second hollow cylinder are respectively and rotatably arranged on the base; the first hollow cylinder and the second hollow cylinder are both provided with cylinder cavities for the blanks to pass through; the centers of the cylinder cavities of the first hollow cylinder and the second hollow cylinder are respectively distributed along the blank transmission direction; an operation space for clamping and conveying the blank is reserved between the first hollow cylinder and the second hollow cylinder;
all the clamping swing arms are uniformly distributed in parallel around the blank transmission axis respectively; one end of each clamping swing arm is hinged to the first hollow cylinder, and the other end of each clamping swing arm is connected with the second hollow cylinder through a tensioning mechanism, so that all the clamping swing arms can be opened or tightened simultaneously; the position of each pinch roll corresponds to the operation space respectively, so that the blank is contacted with the pinch rolls in the operation space; each pinch roll is connected with a pinch drive mechanism respectively to realize the autorotation of the pinch roll so as to enable the blank to be transmitted along the blank transmission direction under the driving of the rotation of the pinch roll; the first hollow cylinder or the second hollow cylinder is connected with a rotary driving mechanism so as to realize that the first hollow cylinder, the second hollow cylinder and each clamping swing arm rotate around the blank transmission axis together to drive the blank to rotate.
3. The rolling continuous feeding device according to claim 2, characterized in that: the tensioning mechanism comprises pressing pieces and pressing adjusting components, the number of the pressing pieces is matched with that of the clamping swing arms; the clamping swing arm forms an inclined plane forming an included angle with the blank conveying direction; each pressing piece is respectively pressed above the inclined plane of each clamping swing arm; each pressing piece is respectively connected with the pressing adjusting assembly to realize position adjustment of the pressing pieces to adjust the pressing positions of the pressing pieces on the inclined plane, so that the inclination angles of the clamping swing arms are adjusted to realize simultaneous opening or simultaneous tightening of all the clamping swing arms; and a reset elastic element is respectively arranged between each clamping swing arm and the first hollow cylinder.
4. A rolling continuous feeding device according to claim 3, characterized in that: the pressing adjusting assembly comprises a holding cylinder, a sliding sleeve and a moving driving module; the sliding sleeve and the holding cylinder are sequentially sleeved outside the hollow cylinder from inside to outside; a limiting structure used for limiting the synchronous rotation of the sliding sleeve and the hollow cylinder II is arranged between the sliding sleeve and the hollow cylinder II; each pressing piece is arranged on the sliding sleeve respectively; the sliding sleeve and the holding cylinder are rotatably connected through a bearing; the holding cylinder is connected with the moving driving module to realize reciprocating movement along the blank conveying direction, so that the sliding sleeve and the pressing piece are pushed to realize position adjustment of the pressing piece.
5. Rolling continuous feeder according to claim 4, characterised in that: the mobile driving module is a pressing oil cylinder; the cylinder barrel of the pressing oil cylinder is arranged on the base, and the telescopic rod of the pressing oil cylinder is connected with the holding barrel.
6. The rolling continuous feeding device according to claim 2, characterized in that: the clamping swing arm is provided with an installation cavity; the pinch roll is rotatably connected with the wall of the mounting cavity through a roll shaft; the roll shafts are arranged perpendicular to the blank conveying direction; the pinch roll protrudes out of one side of the clamping swing arm close to the blank.
7. The rolling continuous feeding device according to claim 2, characterized in that: the clamping and conveying driving mechanism is a hydraulic motor arranged on the clamping swing arm; the hydraulic motor is connected with the pinch roll; the hydraulic motor is connected with an external liquid supply device through a pipe body.
8. The rolling continuous feeding device according to claim 2, characterized in that: the rotary driving mechanism is a rotary motor arranged below the base; the rotary motor is connected with the first hollow cylinder or the second hollow cylinder through a transmission belt.
9. The rolling continuous feeding device according to claim 2, characterized in that: the number of the clamping swing arms is three, and the clamping swing arms are distributed at intervals of 120 degrees.
10. A planetary rolling mill is characterized in that: comprising the rolling continuous feeding device according to any one of claims 2 to 9; the number of the rolling continuous feeding devices is at least two, and each rolling continuous feeding device is arranged along the blank transmission direction.
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| CN202110842546.1A CN113477723B (en) | 2021-07-26 | 2021-07-26 | Rolling continuous feeding method, feeding device and planetary rolling mill |
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| CN202110842546.1A CN113477723B (en) | 2021-07-26 | 2021-07-26 | Rolling continuous feeding method, feeding device and planetary rolling mill |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05309407A (en) * | 1992-05-08 | 1993-11-22 | Nippon Steel Corp | Shaft pushing device |
| CN201192700Y (en) * | 2008-04-24 | 2009-02-11 | 中国重型机械研究院 | Continuous feeding apparatus of servo, rotary and feed-through for cold tube mill |
| CN106140834A (en) * | 2016-08-18 | 2016-11-23 | 广东科莱博科技有限公司 | A kind of feeding device for milling train |
| CN106670243A (en) * | 2016-11-25 | 2017-05-17 | 宁波东重机械有限公司 | Full-automatic cold pilger mill |
| CN107350296A (en) * | 2017-08-30 | 2017-11-17 | 广东冠邦科技有限公司 | Pipe feeding system |
| CN210632653U (en) * | 2019-08-20 | 2020-05-29 | 长葛市一鸣机械有限公司 | Novel rotary feeding mechanism |
| CN211921651U (en) * | 2020-03-17 | 2020-11-13 | 宁波祥路汽车部件股份有限公司 | Rotary feeding assembly for pipes |
-
2021
- 2021-07-26 CN CN202110842546.1A patent/CN113477723B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05309407A (en) * | 1992-05-08 | 1993-11-22 | Nippon Steel Corp | Shaft pushing device |
| CN201192700Y (en) * | 2008-04-24 | 2009-02-11 | 中国重型机械研究院 | Continuous feeding apparatus of servo, rotary and feed-through for cold tube mill |
| CN106140834A (en) * | 2016-08-18 | 2016-11-23 | 广东科莱博科技有限公司 | A kind of feeding device for milling train |
| CN106670243A (en) * | 2016-11-25 | 2017-05-17 | 宁波东重机械有限公司 | Full-automatic cold pilger mill |
| CN107350296A (en) * | 2017-08-30 | 2017-11-17 | 广东冠邦科技有限公司 | Pipe feeding system |
| CN210632653U (en) * | 2019-08-20 | 2020-05-29 | 长葛市一鸣机械有限公司 | Novel rotary feeding mechanism |
| CN211921651U (en) * | 2020-03-17 | 2020-11-13 | 宁波祥路汽车部件股份有限公司 | Rotary feeding assembly for pipes |
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| CN113477723B (en) | 2023-03-24 |
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