CN115569993A

CN115569993A - Non-ferrous metal rolling processing equipment and rolling processing technology

Info

Publication number: CN115569993A
Application number: CN202211127370.2A
Authority: CN
Inventors: 唐果
Original assignee: Chongqing Heavy Aluminum Building Materials Co ltd
Current assignee: Chongqing Heavy Aluminum Building Materials Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-01-06

Abstract

The invention relates to the technical field of rolling processing, and provides non-ferrous metal rolling processing equipment and a rolling processing technology, wherein the non-ferrous metal rolling processing equipment comprises a rack component, an adjusting component and a roller component: the rack component comprises a base, one side of the top of the base is fixedly connected with a mounting rod in the vertical direction, and one side of the mounting rod is provided with a sliding block capable of lifting along the height direction; the adjusting component comprises two adjusting rods I which are rotatably connected to the bottom of one side of the mounting rod and are symmetrical to form a V-shaped structure. According to the invention, the two adjusting rods I and the two adjusting rods II can be pulled through the lifting of the sliding block, and the multiple groups of X-shaped frames are lengthened or shortened, so that the distance between each movable block can be changed, and the distances between the rotating rods and the press rollers can be driven to be synchronously increased or decreased, thereby rapidly adjusting the distance between each press roller to a proper processing distance.

Description

Non-ferrous metal rolling processing equipment and rolling processing technology

Technical Field

The invention relates to the technical field of calendering, in particular to non-ferrous metal calendering equipment and a non-ferrous metal calendering process.

Background

Calendering is one of the important basic processes in the processing of polymer materials, and is also one of the important processing and forming methods for some semi-finished products and finished products of polymer materials.

Calenders are key equipment in calendering production and are often classified according to the number and arrangement of rollers. The number of the rollers comprises two rollers, three rollers, four rollers and five rollers, the three-roller calender is mainly used for producing sheets, the four rollers can be used for producing thinner products and can also be used for finishing the operation of double-sided rubberizing, and the five rollers are mainly used for producing hard sheets.

At present, in the process of calendering, the number and the roll spacing of the rollers are the main conditions for controlling the calendering process, the structure of the existing calendering equipment is relatively fixed, the number of the rollers cannot be changed according to the requirements of processed products, the workshop can only be provided with the calendering equipment with various roll numbers, the purchase cost is improved, the roller spacing needs to be adjusted, after the machine is stopped firstly, a worker uses related tools to debug the rollers to complete the adjustment of the roll spacing, the time for processing is troublesome, and the time for delayed processing is long, so that the design of the non-ferrous metal calendering equipment and the calendering process is necessary for solving the problem.

Disclosure of Invention

The invention aims to provide non-ferrous metal rolling processing equipment and a non-ferrous metal rolling processing technology, and aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a non-ferrous metal rolling processing equipment comprises a frame component, an adjusting component and a roller component:

the rack component comprises a base, one side of the top of the base is fixedly connected with a mounting rod in the vertical direction, and one side of the mounting rod is provided with a sliding block capable of lifting along the height direction;

the adjusting component comprises two adjusting rods I which are rotationally connected to the bottom of one side of the mounting rod and are symmetrical to each other to form a V-shaped structure, one side of the sliding block is rotationally connected with two adjusting rods II which are symmetrical to each other to form an inverted V-shaped structure and are positioned right above the adjusting rods I, a plurality of groups of X-shaped frames which are distributed up and down are rotationally connected between the two adjusting rods I and the two adjusting rods II, every two adjacent X-shaped frames are hinged to each other, each X-shaped frame comprises two crossed rod bodies, a plurality of movable blocks are slidably arranged on one side of the mounting rod along the height direction of the mounting rod, a rotating shaft is fixedly connected to one side of each movable block, and every two crossed rod bodies are jointly rotationally sleeved on the corresponding rotating shaft;

the roller component includes that a plurality of difference fixed connection are kept away from the mounting panel of movable block one side at corresponding pivot, and one side of every mounting panel all is connected with through the bearing rotation and is about the axial and can carry out the dwang of rotation, and all can dismantle fixed the cup joint on every dwang and have the compression roller.

Preferably, the spout has been seted up along its direction of height to one side of installation pole, the sliding block all slides with a plurality of movable blocks and pegs graft in the spout, rotate through the bearing in the spout and be connected with and be vertical axial lead screw, a plurality of movable blocks all slide and cup joint at the lead screw, and the lead screw alternates on the sliding block through the cooperation of screw thread, be provided with on the installation pole and be used for driving the lead screw to carry out pivoted drive assembly, can reciprocate in the spout through the cooperation of screw thread drive sliding block when the lead screw rotates, in order to reach the purpose of adjusting every compression roller interval.

Preferably, the driving assembly comprises a first motor fixedly installed at the top of one side of the installation rod and an output shaft of the first motor, a first driving straight gear is fixedly connected to the tail end of the output shaft of the first motor, the top of the screw rod penetrates through the installation rod and is fixedly connected with a first driven straight gear meshed with the first driving straight gear, and the output shaft of the first motor can drive the first driving straight gear to rotate when rotating so as to achieve the effect of driving the screw rod to rotate.

Preferably, the mounting plate is an L-shaped plate, a second motor is fixedly mounted on one side of the mounting plate and is positioned right below the rotating rod, a second driving spur gear is fixedly connected to the tail end of an output shaft of the second motor, a second driven spur gear meshed with the second driving spur gear is fixedly sleeved on one side of the circumferential surface of the rotating rod, and the second driving spur gear can be driven to rotate when the output shaft of the second motor rotates, so that the rotating rod can be driven to rotate and drive the compression roller to rotate.

Preferably, the compression roller block slides and cup joints on the dwang, and the fixed annular plate that contacts with compression roller one side that has cup jointed in circumference surface one side of dwang is first, the base top is kept away from one side fixedly connected with two front and back symmetries of installation pole and is the stock of vertical direction, it has a plurality of fly leafs that are the distribution from top to bottom to slide jointly to cup joint between two stocks, one side that every fly leaf was installed the pole towards the installation pole all is provided with the sleeve that can control about moving, one side that every sleeve kept away from the fly leaf all is connected with the annular plate two of contradicting on corresponding compression roller one side through the bearing rotation, and one side of every dwang all pegs graft in the annular plate two that correspond, when the compression roller is dismantled to needs, can keep away from the compression roller through telescopic removal drive annular plate two, make annular plate two separate from one side of compression roller, and with the dwang phase separation, then make it take out from two stocks to make the fly leaf upwards slide, again with the compression roller follow the dwang dismantlement of compression roller on the dwang can be accomplished with the hand.

Preferably, the periphery of the sleeve is provided with two vertically symmetrical support blocks I, the upper side and the lower side of the movable plate are fixedly connected with support blocks II, and one side of each support block II is fixedly connected with a guide rod which is respectively inserted into the corresponding support block I, so that the sleeve can be in left-right clamping sliding connection on one side of the movable plate.

Preferably, be connected with through the bearing interlude and be axial threaded rod about, one side of threaded rod is pegged graft in the sleeve through screw-thread fit, and the opposite side fixedly connected with handle of threaded rod is held the handle and is rotated and just can drive the threaded rod and rotate at the fly leaf to make the sleeve remove about.

Preferably, the fixed cover has connect the sleeve pipe on the dwang, and the jack that is located same central axis rather than is seted up to one side of compression roller, and the compression roller cup joints on the sleeve pipe through the jack, and the spacing groove has been seted up along its length direction to one side of jack, and sheathed tube circumferential surface is formed with the gag lever post of pegging graft in the spacing inslot for the compression roller can form the block slip cup joint on the dwang.

Preferably, a plurality of dwang are from last to rotating respectively down and connecting in the left and right sides that corresponds the mounting panel for crisscross distribution about a plurality of compression rollers can be, reaches the purpose of carrying out S type calendering processing to the machined part.

In order to achieve the purpose, the invention also provides the following technical scheme:

a rolling processing technology for non-ferrous metal rolling processing equipment comprises the following steps:

s1, lifting is carried out through a sliding block, two adjusting rods I and two adjusting rods II can be pulled, a plurality of groups of X-shaped frames are lengthened or shortened, and at the moment, the distances between the rotating rods and the compression rollers can be synchronously increased or decreased, so that the distance between each compression roller is adjusted to be a proper machining distance;

s2, selecting the proper number of the compression rollers according to the processing requirements, and detaching redundant compression rollers from the rotating rod;

and S3, synchronously rotating through a plurality of rotating rods, feeding the workpiece between the two uppermost compression rollers, and extruding the workpiece from the two lowermost compression rollers to finish the rolling processing.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the two adjusting rods I and the two adjusting rods II can be pulled through the lifting of the sliding block, and the multiple groups of X-shaped frames are lengthened or shortened, so that the distance between each movable block can be changed, and the distances between the rotating rods and the compression rollers can be driven to be synchronously increased or reduced, so that the distance between each compression roller can be quickly adjusted to a proper processing distance; dismantle unnecessary compression roller from the dwang to the compression roller that conveniently uses suitable number carries out calendering processing, makes the compression roller figure of this equipment carry out quick adjustment according to the demand.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic side view of the structure of the present invention;

FIG. 4 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 3 according to the present invention;

FIG. 5 is a schematic view of the mounting bar configuration of the present invention;

FIG. 6 is an exploded view of the mounting plate and platen according to the present invention;

FIG. 7 is an exploded view of the movable plate of the present invention;

in the figure: 1. a base; 2. mounting a rod; 3. a slider; 4. adjusting a rod I; 5. a second adjusting rod; 6. an X-shaped frame; 61. a rod body; 62. a rotating shaft; 7. a movable block; 8. mounting a plate; 9. rotating the rod; 10. a compression roller; 11. a chute; 12. a screw rod; 13. a first motor; 14. a first driving straight gear; 15. a first driven spur gear; 16. a second motor; 17. a second driving straight gear; 18. a driven straight gear II; 19. a sleeve; 20. a limiting rod; 21. a jack; 22. a limiting groove; 23. a first annular plate; 24. a long rod; 25. a movable plate; 26. a sleeve; 27. a second annular plate; 28. supporting a first block; 29. a second support block; 30. a guide bar; 31. a threaded rod; 32. a handle.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein and, therefore, the present invention is not limited to the specific embodiments disclosed in the following description.

Referring to fig. 1-7, the present invention provides a non-ferrous metal rolling processing apparatus and a rolling processing technology: the roller component comprises a frame component, an adjusting component and a roller component: the rack component comprises a base 1, one side of the top of the base 1 is fixedly connected with a mounting rod 2 in the vertical direction, and one side of the mounting rod 2 is provided with a sliding block 3 capable of lifting along the height direction; the adjusting component comprises two adjusting rods I4 which are rotatably connected to the bottom of one side of the mounting rod 2 and are symmetrical to each other to form a V-shaped structure, two adjusting rods II 5 which are symmetrical to each other to form an inverted V-shaped structure and are positioned right above the adjusting rods I4 are rotatably connected to one side of the sliding block 3, a plurality of groups of X-shaped frames 6 which are distributed up and down are rotatably connected between the two adjusting rods I4 and the two adjusting rods II 5, every two adjacent X-shaped frames 6 are hinged to each other, each X-shaped frame 6 comprises two crossed rod bodies 61, a plurality of movable blocks 7 are slidably arranged on one side of the mounting rod 2 along the height direction of the mounting rod, a rotating shaft 62 is fixedly connected to one side of each movable block 7, and each two crossed rod bodies 61 are jointly rotatably sleeved on the corresponding rotating shaft 62; the roller component includes a plurality of respectively fixed connection and keeps away from the mounting panel 8 of movable block 7 one side corresponding pivot 62, one side of every mounting panel 8 all is connected with through the bearing rotation and is left right axis direction and can carry out the dwang 9 that rotates, and all can dismantle fixed cover on every dwang 9 and have connect compression roller 10, when using this equipment, through the lift of sliding block 3, can stimulate two regulation poles one 4 and two regulation poles two 5, and make multiunit X shape frame 6 elongated or shorten, the interval of every movable block 7 can change this moment, and can drive the interval of a plurality of dwang 9 and compression roller 10 and increase or reduce in step, with the interval adjustment to suitable processing distance with every compression roller 10 that can be quick, and simultaneously, according to the processing demand, can dismantle unnecessary compression roller 10 from dwang 9, with the convenient compression roller 10 that uses suitable number to carry out calendering processing, make the compression roller 10 figure of this equipment can carry out quick adjustment according to the demand, afterwards, rotate in step through a plurality of 9, with the machined part between two machined part 10 of the top, the machined part can be pressed from between two compression rollers 10 of below, the calendering processing flow can be accomplished to the calendering.

It is specific, spout 11 has been seted up along its direction of height to one side of installation pole 2, sliding block 3 and the equal slip grafting of a plurality of movable block 7 are in spout 11, make sliding block 3 and a plurality of movable block 7 can form sliding connection along its direction of height in installation pole 2 one side, and simultaneously, be connected with through the bearing rotation in the spout 11 and be vertical axial lead screw 12, a plurality of movable block 7 all slide and cup joint at lead screw 12, and lead screw 12 alternates on sliding block 3 through the cooperation of screw thread, be provided with on the installation pole 2 and be used for driving lead screw 12 and carry out pivoted drive assembly, can drive sliding block 3 through the cooperation of screw thread and reciprocate in spout 11 when lead screw 12 rotates, in order to reach the flexible purpose of adjusting every compression roller 10 intervals of pulling X-shaped frame 6.

In order to drive the screw rod 12 to rotate, in some embodiments, it is provided that the driving assembly includes a first motor 13 fixedly installed at a top of one side of the installation rod 2 and having an output shaft facing upward, a first driving spur gear 14 is fixedly connected to an end of the output shaft of the first motor 13, the top of the screw rod 12 penetrates through the installation rod 2 and is fixedly connected with a first driven spur gear 15 engaged with the first driving spur gear 14, the first driving spur gear 14 is driven to rotate by the rotation of the output shaft of the first motor 13, and the first driving spur gear 14 can drive the first driven spur gear 15 to rotate by the matching of teeth, so as to achieve an effect of driving the screw rod 12 to rotate.

The specific reason why the rotating rod 9 can rotate is as follows, the mounting plate 8 is an L-shaped plate, and one side of the mounting plate 8 is fixedly provided with a second motor 16 which is positioned right below the rotating rod 9, the tail end of the output shaft of the second motor 16 is fixedly connected with a second driving spur gear 17, one side of the circumferential surface of the rotating rod 9 is fixedly sleeved with a second driven spur gear 18 which is meshed with the second driving spur gear 17, the second driving spur gear 17 can be driven to rotate when the output shaft of the second motor 16 rotates, and the second driven spur gear 18 can be driven to rotate synchronously along with the second driving spur gear 17 through tooth matching, so that the rotating rod 9 can be driven to rotate and drive the compression roller 10 to rotate.

The specific mode that the compression roller 10 can be detached on the rotating rod 9 is as follows, the compression roller 10 is clamped and slidably sleeved on the rotating rod 9, one side of the circumferential surface of the rotating rod 9 is fixedly sleeved with a first annular plate 23 which is in contact with one side of the compression roller 10, one side of the base 1, which is far away from the installation rod 2, is fixedly connected with two long rods 24 which are symmetrical front and back and are in the vertical direction, a plurality of movable plates 25 which are distributed up and down are commonly slidably sleeved between the two long rods 24, one side of each movable plate 25, which faces the installation rod 2, is provided with a sleeve 26 which can move left and right, one side of each sleeve 26, which is far away from the movable plate 25, is rotatably connected with a second annular plate 27 which is abutted against one side of the corresponding compression roller 10 through a bearing, and one side of each rotating rod 9 is inserted into the corresponding second annular plate 27, thus, two sides of the compression roller 10 are respectively limited by the first annular plate 23 and the second annular plate 27, so that the compression roller 10 cannot slide on the rotating rod 9, because the rotating rod 10 is clamped and slidably sleeved on the annular plate 9, the rotating rod 9, the compression roller 10 can be detached from the movable by hand, and the compression roller 10 can be detached from the two long rods 9 by the compression roller 10, and the compression roller 10 can be detached conveniently.

Referring to fig. 7, two vertically symmetrical support blocks 28 are formed on the outer peripheral side of the sleeve 26, two support blocks 29 are fixedly connected to the upper and lower sides of the movable plate 25, and guide rods 30 respectively inserted into the corresponding support blocks 28 are fixedly connected to one sides of the two support blocks 29, so that the sleeve 26 can form a left-right clamping sliding connection on one side of the movable plate 25.

In order to enable the sleeve 26 to move left and right, a threaded rod 31 in the left-right axial direction is connected to the movable plate 25 in a penetrating mode through a bearing, one side of the threaded rod 31 is inserted into the sleeve 26 in a threaded matching mode, a handle 32 is fixedly connected to the other side of the threaded rod 31, the handle 32 is held by a hand and rotated to drive the threaded rod 31 to rotate on the movable plate 25, and the sleeve 26 can correspondingly move left and right through the threaded matching with the threaded rod 31.

Meanwhile, as for a specific connection mode between the compression roller 10 and the rotating rod 9, as shown in fig. 6, a sleeve 19 is fixedly sleeved on the rotating rod 9, one side of the compression roller 10 is provided with an insertion hole 21 which is located on the same central axis as the compression roller, the compression roller 10 is sleeved on the sleeve 19 through the insertion hole 21, one side of the insertion hole 21 is provided with a limiting groove 22 along the length direction thereof, and a limiting rod 20 which is inserted into the limiting groove 22 is formed on the circumferential surface of the sleeve 19, so that the compression roller 10 can be formed in a clamping sliding sleeve on the rotating rod 9.

And in addition, a plurality of dwang 9 from last to down rotate respectively in proper order and connect in the left and right sides that corresponds mounting panel 8, just so make a plurality of compression rollers 10 can be left and right sides crisscross distribution, reach the purpose of carrying out S type calendering to the machined part, such design can be more reasonable.

In the idle place of the device, all the electric devices and the matched drivers thereof are arranged, and through the person skilled in the art, all the driving parts in the above description, which refer to the power element, the electric devices and the adapted power supply, are connected through the conducting wires, and the specific connection means refers to the above description that the electric connection between the electric devices is completed in sequence, and the detailed connection means thereof are well known in the art.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a non ferrous metal calendering processing equipment, includes frame member, adjusting part and roller component, its characterized in that:

the rack component comprises a base (1), one side of the top of the base (1) is fixedly connected with an installation rod (2) in the vertical direction, and one side of the installation rod (2) is provided with a sliding block (3) capable of lifting along the height direction;

the adjusting component comprises two adjusting rods I (4) which are rotatably connected to the bottom of one side of the mounting rod 2 and are symmetrical to each other to form a V-shaped structure, two adjusting rods II (5) which are symmetrical to each other to form an inverted V-shaped structure and are located right above the adjusting rods I (4) are rotatably connected to one side of the sliding block 3, a plurality of groups of X-shaped frames 6 which are distributed up and down are rotatably connected between the two adjusting rods I (4) and the two adjusting rods II (5), every two adjacent X-shaped frames 6 are hinged to each other, each X-shaped frame 6 comprises two crossed rod bodies (61), a plurality of movable blocks (7) are slidably arranged on one side of the mounting rod 2 along the height direction of the mounting rod, a rotating shaft (62) is fixedly connected to one side of each movable block (7), and every two crossed rod bodies (61) are jointly rotatably sleeved on the corresponding rotating shaft (62);

roller component includes that a plurality of difference fixed connection keep away from mounting panel (8) of movable block (7) one side in corresponding pivot (62), and one side of every mounting panel (8) all is connected with through the bearing rotation and is left right axle to and can carry out rotatory dwang (9), and all can dismantle fixed cover on every dwang (9) and connect compression roller (10).

2. The non-ferrous metal calendering processing apparatus according to claim 1, wherein: spout (11) have been seted up along its direction of height to one side of installation pole (2), sliding block (3) and a plurality of movable block (7) all slide and peg graft in spout (11), rotate through the bearing in spout (11) and be connected with and be vertical axial lead screw (12), a plurality of movable block (7) all slide and cup joint at lead screw (12), and lead screw (12) alternate on sliding block (3) through the cooperation of screw thread, be provided with on installation pole (2) and be used for driving lead screw (12) and carry out pivoted drive assembly.

3. The non-ferrous metal rolling processing equipment as set forth in claim 2, wherein: the driving assembly comprises a first motor (13) which is fixedly installed at the top of one side of the installation rod (2) and has an output shaft facing upwards, a first driving straight gear (14) is fixedly connected to the tail end of the output shaft of the first motor (13), and a first driven straight gear (15) which is meshed with the first driving straight gear (14) penetrates through the installation rod (2) and is fixedly connected to the top of the screw rod (12).

4. The non-ferrous metal calendering processing apparatus according to claim 1, wherein: the mounting plate (8) is an L-shaped plate, a second motor (16) is fixedly mounted on one side of the mounting plate (8) and located right below the rotating rod (9), a second driving straight gear (17) is fixedly connected to the tail end of an output shaft of the second motor (16), and a second driven straight gear (18) meshed with the second driving straight gear (17) is fixedly sleeved on one side of the circumferential surface of the rotating rod (9).

5. The non-ferrous metal calendering processing apparatus according to claim 1, wherein: compression roller (10) block slip cup joints on dwang (9), and the fixed annular plate (23) that contact with compression roller (10) one side that cup joints in circumference surface one side of dwang (9), base (1) top is kept away from two front and back symmetries of one side fixedly connected with of installation pole (2) and is stock (24) of vertical direction, slip cup joint a plurality of fly leaf (25) that distribute about being jointly between two stock (24), one side of every fly leaf (25) towards installation pole (2) all is provided with sleeve (26) that can remove about moving, one side that fly leaf (25) were kept away from in every sleeve (26) all is connected with through the bearing rotation and contradicts in corresponding compression roller (10) one side annular plate two (27), and one side of every dwang (9) all pegs graft in corresponding annular plate two (27).

6. The non-ferrous metal rolling processing equipment as set forth in claim 5, wherein: two vertically symmetrical support blocks I (28) are formed on the outer peripheral side of the sleeve (26), support blocks II (29) are fixedly connected to the upper side and the lower side of the movable plate (25), and guide rods (30) which are respectively inserted into the corresponding support blocks I (28) are fixedly connected to one sides of the two support blocks II (29).

7. The non-ferrous metal calendering processing apparatus according to claim 5, wherein: the movable plate (25) is connected with a threaded rod (31) which is in the left-right axial direction in a penetrating mode through a bearing, one side of the threaded rod (31) is inserted into the sleeve (26) in a threaded fit mode, and the other side of the threaded rod (31) is fixedly connected with a handle (32).

8. The non-ferrous metal calendering processing apparatus according to claim 5, wherein: the fixed cover of dwang (9) has connect sleeve pipe (19), and jack (21) rather than being located same central axis are seted up to one side of compression roller (10), and compression roller (10) cup joint on sleeve pipe (19) through jack (21), and spacing groove (22) have been seted up along its length direction to one side of jack (21), and the circumferential surface of sleeve pipe (19) is formed with gag lever post (20) of pegging graft in spacing groove (22).

9. The non-ferrous metal rolling processing equipment as set forth in claim 1, wherein: the plurality of rotating rods (9) are sequentially and rotatably connected to the left side and the right side of the corresponding mounting plate (8) from top to bottom respectively.

10. The rolling process for a nonferrous metal rolling process equipment according to claim 1, comprising the steps of:

s1, lifting is carried out through a sliding block (3), two adjusting rods I (4) and two adjusting rods II (5) can be pulled, a plurality of groups of X-shaped frames (6) are lengthened or shortened, and at the moment, the distance between a plurality of rotating rods (9) and a plurality of pressing rollers (10) can be synchronously increased or decreased, so that the distance between every two pressing rollers (10) can be adjusted to be a proper machining distance;

s2, selecting the proper number of the compression rollers (10) according to the processing requirement, and detaching redundant compression rollers (10) from the rotating rod (9);

and S3, synchronously rotating through a plurality of rotating rods (9), feeding the workpiece between the two uppermost compression rollers (10), and extruding the workpiece from the two lowermost compression rollers (10) to finish the rolling processing.