CN112474923A

CN112474923A - Rolling forming machine

Info

Publication number: CN112474923A
Application number: CN202011271470.3A
Authority: CN
Inventors: 王少辉; 施明铭; 胡芝凛; 林丽红
Original assignee: Xiamen Brandnew Roll Forming Machinery Co ltd
Current assignee: Xiamen New Color Steel Machinery Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-03-12
Anticipated expiration: 2040-11-13
Also published as: CN112474923B

Abstract

The application relates to a rolling forming machine, which mainly comprises a frame, a plurality of forming units, a driving device, a transmission assembly and a shearing device, wherein each forming unit is arranged on the frame, and the shearing device is arranged at the discharge end of the frame. Each forming unit comprises an upper roller and a lower roller, and each transmission assembly is arranged on the lower roller. The rack is fixed with a plurality of pairs of mounting seats, each lower roll rotates and installs to the mounting seat on, all go up and down to slide on each mounting seat and install the seat that slides, each top roll all rotates and installs on the seat that slides, each seat upper end threaded connection that slides has the regulation pole of the vertical setting of axis, all coaxial fixed with first gear on each regulation pole, still slide on the mounting seat and install first rack, first rack and each first gear engagement effect that corresponds the side, still be provided with in the rack and be used for driving the synchronous drive subassembly that two first racks slided along the material advancing direction in step. This application has the effect that improves the regulation efficiency of shaping unit.

Description

Rolling forming machine

Technical Field

The application relates to the technical field of roll forming equipment, in particular to a roll forming machine.

Background

At present, roll forming is a metal forming process which is energy-saving, material-saving and efficient and is used for continuously transversely bending metal plate strips such as coiled materials, strip materials and the like through a plurality of forming rollers which are sequentially arranged to manufacture strip steel with specific end faces.

The traditional rolling forming machine mainly comprises a forming unit with a plurality of passes and a shearing device on a discharge end, wherein the forming unit with each pass comprises an upper roller and a lower roller for rolling a metal plate, the lower rollers of each pass are driven by a gear set or a chain sprocket arranged on one side of a rack, and the upper roller is driven by the gear set of the lower roller of the corresponding pass to synchronously roll and form strip steel. In the traditional technology, the distance between the upper roller and the lower roller is adjusted to meet the production requirements of different specifications, and the height of the upper roller is adjusted through lifting and sliding to adjust the distance between the upper roller and the lower roller.

In view of the above-mentioned related art, the applicant has found that when the distance between the upper roll and the lower roll of each pass of the roll forming machine needs to be adjusted, the adjustment is performed one by one, the efficiency is low, and therefore, the improvement is needed.

Disclosure of Invention

In order to improve the regulation efficiency of the forming unit, the application provides a rolling forming machine.

The application provides a roll forming machine adopts following technical scheme:

the utility model provides a roll forming machine, includes the frame, a plurality of shaping units of having arranged along material advancing direction in the frame, each shaping unit all sets up top roll and lower roll in the frame including rotating, still be provided with in the frame and be used for driving each lower roll pivoted drive arrangement, each all be provided with drive top roll pivoted drive assembly on the lower roll, still be provided with the shearing mechanism who cuts the material on the frame discharge end, its characterized in that: each roll up the roll axial both ends and all be provided with the seat that slides in the frame of vertical, each equal threaded connection has the regulation pole that the axis is vertical to be set up on the seat that slides, each adjust the pole all rotate and set up in the frame, all coaxial fixed with first gear on each adjust the pole, still slide in the frame and be provided with the first rack that is located material advancing direction both sides, two first rack respectively with each first gear engagement effect of corresponding side, still be provided with in the frame and be used for driving the synchronous drive subassembly that two first racks slided along material advancing direction.

By adopting the technical scheme, the synchronous driving assembly, the first rack, the first gear and the adjusting rod are used for driving the sliding seats to synchronously lift, so that the space between the upper roller and the lower roller is adjusted; the specific implementation mode is as follows: the synchronous driving assembly drives the two first racks to slide along the material advancing direction, the first racks are meshed with the first gears on the corresponding sides to drive the first gears to rotate, the first gears drive the corresponding adjusting rods to rotate, the adjusting rods are connected with the sliding seats through threads, and then the effect of driving the sliding seats to synchronously lift and slide is achieved.

Preferably, the synchronous drive assembly comprises a first box, a first driving member and a first driving source, a first sliding groove for sliding corresponding to the first rack is arranged on the first box body in a penetrating way along the two ends of the first rack in the length direction, a second sliding groove for the first driving piece to slide along the direction vertical to the two first racks is arranged in the first box body, the first sliding groove is communicated with the second sliding groove, a third sliding groove for sliding corresponding to the first rack is arranged on the first driving piece along the two ends of the length direction of the first rack in a penetrating way, sliding columns are vertically connected on the two first racks, the axial line of the sliding column is perpendicular to the length direction of the first rack and the sliding direction of the first driving piece, the first driving piece is provided with a fourth sliding chute for the sliding of the sliding column, the first driving source is arranged on the first box body, and the output end of the first driving source is connected with the first driving piece; when the first driving source drives the first driving piece to slide, the sliding column slides along the fourth sliding groove to drive the first rack to slide along the first sliding groove.

By adopting the technical scheme, the first driving part is driven by the first driving source to slide along the direction vertical to the two first racks, the sliding column slides in the fourth sliding groove, and the limiting effect of the fourth sliding groove on the sliding column is utilized; the first driving piece is utilized to act on the two first gears simultaneously, so that the two first racks can synchronously slide.

Preferably, two sliding columns are arranged on two sides of the first racks, which are arranged along the axial direction of the sliding columns, fourth sliding grooves for the sliding columns to slide are formed in the first driving piece, fifth sliding grooves are formed in the first box body, which are arranged along the sliding direction of the first racks, and one ends of the sliding columns, which are far away from the first racks, extend into the fifth sliding grooves after penetrating through the fourth sliding grooves.

By adopting the technical scheme, the sliding posts are arranged on the two sides of the first rack, the fifth sliding groove and the fourth sliding groove are arranged on the two sides of the first box body and the first driving piece, and the two sides are simultaneously used for limiting, so that the sliding is more stable; carry on spacingly to the post sliding direction that slides through the fifth spout on the first box, convert the effort to the post that slides on, reduce the frictional force between first rack and the first box for first rack slides more stably.

Preferably, each first gear is a helical gear, and the parts of the two first racks, which are meshed with the first gears, are helical racks; the rack is also provided with a limiting assembly for limiting the sliding of the first rack, the limiting assembly comprises a limiting gear meshed with the first rack and a sliding shaft coaxially fixed with the limiting gear, the rack is provided with a sixth sliding groove for the sliding shaft to lift and slide, and the sliding shaft is in a regular prism shape.

By adopting the technical scheme, the meshing stability of each first gear and each first rack is improved by utilizing the stable meshing action of the helical gear and the helical rack; the sliding seat is lifted and slid due to vibration in the operation process of the rolling forming machine, the adjusting screw drives the first gear to rotate, and then the first rack is driven to rotate, and the limiting effect of the synchronous driving assembly on the first rack is limited, so that the adjusted first rack is clamped and limited by arranging the limiting gear and the sliding shaft, the first gear and the adjusting rod are reduced to rotate, and the phenomenon that the sliding seat is lifted due to vibration is improved; the specific implementation mode is as follows: after adjusting first rack, will promote the axle that slides and go up and down to slide for limiting gear and first rack meshing, the axle that slides that the regular prism form set up will restrict limiting gear and take place to rotate simultaneously, and then realize the spacing effect of joint.

Preferably, when the sliding shaft slides in the sixth sliding groove, a reserved seam is arranged on the outer wall of the sliding shaft and on the inner side wall of the sixth sliding groove, and a fixing piece is inserted into the reserved seam.

Through adopting above-mentioned technical scheme, when the axle that slides drives limit gear and first rack joint when spacing, because the position instability of first rack, lead to limit gear sometimes to be difficult to with first rack engagement butt joint, consequently, the joint is reserved in will setting up, when making the axle that slides drive limit gear and first rack butt joint, allow the axle that slides to take place the micro-rotation, make more stable of limit gear be connected with first rack engagement, after the meshing butt joint is accomplished, insert the stationary blade and establish to reserving in the joint, further restrict the axle that slides and take place to rotate, improve the meshing stability of limit gear and first rack.

Preferably, the synchronous drive subassembly includes second box, second driving source, action wheel and follows the driving wheel, the second box sets up in the frame and is located between two first racks, set up the seventh spout that supplies two first racks to slide on the second box, the second driving source sets up on the second box, the action wheel coaxial arrangement is on the output of second driving source, it is provided with two sets ofly to follow the driving wheel, and is located one side that the action wheel is close to first rack respectively, and is two sets of keep away from in the follow driving wheel on one side of action wheel respectively with the first rack toothing who corresponds, one of them is organized follow driving wheel is odd number spare, another group set up to even number spare from the driving wheel.

Through adopting above-mentioned technical scheme, rotate through second driving source drive action wheel, the action wheel will drive two sets of follow driving wheel rotations of both sides, utilize the corresponding from the driving wheel and correspond the first rack meshing effect of side, and then drive and correspond first rack and slide, be odd number and even number through the quantity that two sets of follow driving wheels on the restriction action wheel both sides for two first racks slide in step.

Preferably, each transmission assembly comprises a second gear arranged on the axial end of each upper roller and the axial end of each lower roller far away from the driving device, each forming unit is correspondingly provided with a pair of third gears in meshed connection, each third gear is rotatably arranged on the machine frame, the gear on the lower side of each pair of third gears is meshed with the second gear on the lower roller, and the gear on the upper side of each pair of third gears is meshed with the second gear on the upper roller.

Through adopting above-mentioned technical scheme, the second gear will be through the transmission effect of a pair of third gear that corresponds on the lower roll on will the effort transmit the first gear on the top roll, realize driving the upper roll rotation and drive the material with the lower roll and advance to what the adaptation top roll lift position that slides changed, simple structure, the transmission is more stable.

Preferably, an inference mechanism for impacting the material is arranged at the discharging end of the rack, and the inference mechanism comprises an impacting plate which is lifted and slid on the rack and a first driving assembly which drives the impacting plate to lift.

By adopting the technical scheme, in the production process, when the blade of the shearing device is passivated or the lifting shearing progress is insufficient, the phenomenon that the material cannot be completely sheared occurs, and the situation of partial adhesion exists, so that the continuous production of the material is influenced; therefore, an inference mechanism is arranged on the discharging end, the materials are pushed through the inference mechanism, and the situation of fracture among the auxiliary materials is achieved.

Preferably, the first driving assembly comprises a fourth rack, a fourth gear, camshafts and a fourth driving source, at least two camshafts are uniformly distributed along the length direction of the top collision plate, each camshaft is rotatably arranged on the rack, all axes of the camshafts are arranged in parallel, the fourth gear is coaxially fixed to the camshaft, the fourth rack is meshed with each fourth gear, the fourth rack is slidably arranged along the length direction of the top collision plate to drive each fourth gear to rotate synchronously, and a convex block of each camshaft is positioned under the top collision plate to enable the top collision plate to slide upwards.

By adopting the technical scheme, the effect of pushing the jacking plate to lift and jack the material to assist the material to break is realized by the linkage of the fourth rack, the fourth gear, the camshaft and the fourth driving source; the specific implementation mode is as follows: after the material is cut by the shearing device, the fourth driving source drives the fourth rack to slide, the fourth rack drives the fourth gears to rotate, the rotating fourth gears drive the cam shafts to rotate, the convex blocks of the cam shafts upwards prop and hit the top collision plate in the rotating process, the top collision plate upwards slides and hits the material to achieve the effect of assisting fracture, the top collision plate is released from propping and setting of the top collision plate after the cam shafts continue to rotate, and the top collision plate downwards slides under the action of gravity until the top collision plate abuts against the cam shafts.

In summary, the present application includes at least one of the following beneficial technical effects:

by the aid of the linkage effect of the sliding seats, the adjusting rods, the first gear, the first rack and the synchronous driving assembly, the sliding seats are synchronously driven to lift simultaneously, and the adjusting efficiency of the distance between each upper roller and each lower roller is improved;

the first rack is limited to move after the adjustment is completed by arranging the limiting gear and the sliding shaft, and the condition that the sliding seat is unstable due to vibration of the rolling forming machine in the operation process is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of a roll forming machine according to embodiment 1 of the present application;

FIG. 2 is a partial schematic structural view of a molding end section of a roll molding machine according to example 1 of the present application;

fig. 3 is a schematic view of a structure of a hidden upper end surface of a synchronous drive unit of a roll forming machine according to embodiment 1 of the present application;

fig. 4 is a schematic view of an installation structure of a limiting member of the roll forming machine according to embodiment 1 of the present application;

fig. 5 is a schematic structural view of an inference mechanism of the roll forming machine according to embodiment 1 of the present application;

fig. 6 is a schematic view of the overall structure of a roll forming machine according to embodiment 2 of the present application;

fig. 7 is a schematic plan view of a synchronous drive assembly of the roll forming machine of embodiment 2 of the present application.

Reference numerals: 1. a frame; 2. a molding unit; 201. an upper roller; 202. a lower roller; 3. a drive device; 31. a driven sprocket; 32. a driven chain; 33. a drive motor; 34. a drive sprocket; 35. a drive chain; 4. a transmission assembly; 41. a second gear; 42. a third gear; 5. a shearing device; 51. a gantry; 52. an upper tool apron; 53. a lower tool apron; 54. a hydraulic cylinder; 6. a mounting seat; 7. a sliding seat; 8. adjusting a rod; 9. a first gear; 10. a first rack; 11. a synchronous drive assembly; 111. a first case; 112. a first driving member; 113. a first drive source; 12. a first chute; 13. a second chute; 14. a third chute; 15. sliding the column; 16. a fourth chute; 17. a fifth chute; 18. a limiting component; 181. a limit gear; 182. a slip axis; 19. a spur gear section; 20. a sixth chute; 21. reserving a seam; 22. a fixing sheet; 23. an inference mechanism; 231. pushing against the collision plate; 232. a first drive assembly; 2321. a fourth rack; 2322. a fourth gear; 2323. a camshaft; 2324. a fourth drive source; 24. a second case; 25. a second drive source; 26. a driving wheel; 27. a driven wheel; 28. and a seventh chute.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a rolling forming machine.

Example 1:

referring to fig. 1 and 2, the roll forming machine includes a frame 1, a plurality of forming units 2, a driving device 3, a transmission assembly 4 and a shearing device 5, wherein the forming units 2 are arranged on the frame 1 along the material advancing direction, and the shearing device 5 is installed on the discharging end of the frame 1 for cutting the material according to the production specification. Each forming unit 2 comprises an upper roller 201 and a lower roller 202 which are arranged in parallel, a driving device 3 is arranged on one side of the frame 1 for driving each lower roller 202 to rotate, and each transmission assembly 4 is arranged on one end of each lower roller 202 far away from the driving device 3 for driving the upper roller 201 to rotate. A plurality of pairs of mounting seats 6 for mounting upper rollers 201 and lower rollers 202 are fixed on a rack 1, each lower roller 202 is rotatably mounted on the mounting seat 6, each mounting seat 6 is uniformly lifted, slid and mounted with a sliding seat 7, each upper roller 201 is rotatably mounted on the sliding seat 7, the upper end of each sliding seat 7 is in threaded connection with an adjusting rod 8 with a vertical axis, each adjusting rod 8 is rotatably mounted on the mounting seat 6, each adjusting rod 8 is coaxially fixed with a first gear 9, the mounting seats 6 are also slidably mounted with first racks 10 positioned on two sides of the material advancing direction, the two first racks 10 are respectively engaged with the first gears 9 on the corresponding sides, and the rack 1 is further provided with a synchronous driving assembly 11 for driving the two first racks 10 to synchronously slide along the material advancing direction.

Referring to fig. 1, the driving device 3 includes driven sprockets 31 coaxially disposed at axial ends of the lower rolls 202, the lower rolls 202 of any two adjacent passes are driven by a driven chain 32, and further includes a driving motor 33, the driving motor 33 is disposed at a middle position of the frame 1, two driving sprockets 34 are coaxially fixed on an output shaft of the driving motor 33, and a driving chain 35 is connected between the two driving sprockets 34 and the driven sprockets 31 on the two lower rolls 202 at corresponding positions, so that the driving device 3 drives the lower rolls 202 to rotate synchronously.

Referring to fig. 1 and 2, each transmission assembly 4 includes a second gear 41 fixed on one end of each upper roller 201 and one end of each lower roller 202 far from the driving device 3, each forming unit 2 is correspondingly provided with a pair of third gears 42 engaged with each other, each third gear 42 is rotatably provided on one side of the frame 1 where the second gear 41 is provided along the material advancing direction, the lower gear of each pair of third gears 42 is engaged with the second gear 41 of the lower roller 202, the upper gear of each pair of third gears 42 is engaged with the second gear 41 of the upper roller 201, thereby realizing the transmission action of the lower roller 202 and the upper roller 201 while adjusting the position of the upper roller 201 up and down, in the process of the up-down sliding of the upper roller 201, the second gear 41 on the upper roller 201 is always engaged with the upper gear of each pair of corresponding third gears 42.

Referring to fig. 2 and 3, the synchronous driving assembly 11 includes a first box 111, a first driving member 112 and a first driving source 113, a first sliding slot 12 for sliding corresponding to the first rack 10 is provided through two ends of the first box 111 along the length direction of the first rack 10, a second sliding slot 13 for sliding corresponding to the first driving member 112 along the direction perpendicular to the two first racks 10 is provided inside the first box 111, the first sliding slot 12 is communicated with the second sliding slot 13, a third sliding slot 14 for sliding corresponding to the first rack 10 is provided through two ends of the first driving member 112 along the length direction of the first rack 10, sliding posts 15 arranged in a cylindrical shape are fixed on two sides of the two first racks 10, the axes of the two sliding posts 15 are both perpendicular to the length direction of the first rack 10 and the sliding direction of the first driving member 112, a fourth sliding slot 16 for sliding the sliding posts 15 is provided on the first driving member 112, the first box body 111 is further provided with fifth sliding grooves 17 arranged along the sliding direction of the first rack 10, each fifth sliding groove 17 penetrates through the first box body 111 to be arranged so as to communicate the second sliding groove 13 with the outside of the first box body 111, and one end, far away from the rack, of each sliding column 15 penetrates through the fourth sliding groove 16 and then extends into the fifth sliding groove 17; the first driving source 113 is installed on the outer side of the first box 111, and the output end of the first driving source 113 extends into the second chute 13 and is connected with the first driving member 112; when the first driving element 112 is driven by the first driving source 113 to slide, the sliding column 15 slides in the fourth sliding slot 16 and the fifth sliding slot 17 to drive the first rack 10 to slide along the first sliding slot 12. Specifically, the first driving source 113 is provided as an air cylinder or a hydraulic cylinder.

In the present embodiment, as shown in fig. 2 and 4, each first gear 9 is a helical gear, and the portions of the two first racks 10 engaged with the first gears 9 are helical racks; still install the spacing subassembly 18 that is used for restricting first rack 10 and slides on the frame 1, two spacing subassemblies 18 all include with the spacing gear 181 of first rack 10 meshing and with the axle 182 that slides of spacing gear 181 coaxial fixation, spacing gear 181 sets up to the spur gear, be provided with on the first rack 10 with the positive tooth section 19 of spacing gear 181 meshing, set up the sixth spout 20 that supplies the axle 182 that slides to go up and down to slide on the frame 1, the axle 182 that slides is the setting of regular prism form.

Further, as shown in fig. 2 and 4, when the sliding shaft 182 slides in the sixth sliding chute 20, a reserved gap 21 is formed between the outer wall of the sliding shaft 182 and the inner side wall of the sixth sliding chute 20, and a fixing piece 22 can be inserted into the reserved gap 21 from bottom to top. When the sliding shaft 182 drives the limit gear 181 to be clamped and limited with the first rack 10, the limit gear 181 is sometimes difficult to engage and abut with the first rack 10 due to the unstable position of the first rack 10, so that the reserved seam 21 is provided, when the sliding shaft 182 drives the limit gear 181 to abut with the first rack 10, the sliding shaft 182 is allowed to slightly rotate, the limit gear 181 is more stably engaged and connected with the first rack 10, after the engagement and abutment are completed, the fixing piece 22 is inserted into the reserved seam 21, the sliding shaft 182 is further limited to rotate, and the engagement stability of the limit gear 181 and the first rack 10 is improved.

Referring to fig. 1, the shearing apparatus 5 includes a gantry 51, a hydraulic cylinder 54, an upper tool apron 52 and a lower tool apron 53, the gantry 51 is disposed on the discharging of the frame 1, the upper tool apron 52 is installed on the gantry 51 in a sliding manner in a lifting manner, the hydraulic cylinder 54 is installed on the frame 1, a piston rod is connected to the upper end of the upper tool apron 52, the lower tool apron 53 is installed on the frame 1, and the upper tool apron 52 and the lower tool apron 53 are matched to cut the material.

Referring to fig. 1 and 5, an inference mechanism 23 is arranged on the discharging end of the frame 1, which is located on one side of the shearing device 5 away from the forming unit 2, and is used for bumping against the material which is cut completely, the inference mechanism 23 includes a top collision plate 231 which is lifted and slid on the frame 1, and a first driving component 232 which drives the top collision plate 231 to lift, the top collision plate 231 is used for bumping against one end of the material which is cut completely and is close to the shearing device 5; the first driving assembly 232 includes a fourth rack 2321, a fourth gear 2322, a cam shaft 2323 and a fourth driving source 2324, at least two cam shafts 2323 are uniformly distributed along the length direction of the top impact plate 231, each cam shaft 2323 is rotatably mounted on the frame 1 and each axis is arranged in parallel, the fourth gear 2322 is coaxially fixed to the cam shaft 2323, the fourth rack 2321 is engaged with each fourth gear 2322, the fourth rack 2321 is slidably disposed along the length direction of the top impact plate 231 for driving each fourth gear 2322 to rotate synchronously, and a protrusion of each cam shaft 2323 is located at the lower side of the top impact plate 231 for upward urging the top impact plate 231 to move upwards. Specifically, fourth drive source 2324 is configured as a servo motor.

The implementation principle of the embodiment 1 is as follows: the roll forming process is as follows: the material enters the roll forming unit 2 at the starting end of the frame 1 from the feeding end, is roll-formed by a plurality of forming units 2, is cut between the upper tool apron 52 and the lower tool apron 53 of the shearing device 5, and after the cutting is finished, the first driving assembly 232 drives the top collision plate 231 to upwards rise and collide with the cut material. The process of adjusting the distance between the upper roller 201 and the lower roller 202 is as follows: the first driving source 113 drives the first driving member 112 to slide along the second sliding groove 13, the sliding posts 15 on the two first racks 10 slide along the corresponding fourth sliding grooves 16 and fifth sliding grooves 17 under the limiting action of the first driving member 112 and the first box 111, and further drive the two first racks 10 to synchronously slide along the first sliding grooves 12, after the adjustment is completed, the driving sliding shaft 182 drives the limiting gear 181 to engage with the first racks 10, and the fixing plate 22 is inserted into the reserved seam 21 for limiting.

Example 2:

referring to fig. 6 and 7, the difference between the present embodiment and embodiment 1 is that the synchronous driving assembly 11 includes a second case 24, a second driving source 25, a driving wheel 26, and driven wheels 27, the second case 24 is mounted on the frame 1 and located between two first racks 10, the second case 24 is provided with a seventh sliding slot 28 for sliding the two first racks 10, the second driving source 25 is mounted on the upper side of the second case 24, the driving wheel 26 is coaxially disposed on the output end of the second driving source 25, the driven wheels 27 are provided in two sets, each driven wheel 27 is rotatably mounted in the second case 24, the transmission ratio is 1:1, the two sets of driven wheels 27 are respectively located on one side of the driving wheel 26 close to the two first racks 10, the driven wheels 27 on one side of the two sets of driven wheels 27 far from the driving wheel 26 are respectively engaged with the corresponding first racks 10, one set of the driven wheels 27 is an odd number, another set of driven wheels 27 is provided as an even number of pieces.

The implementation principle of the embodiment 2 is as follows: after the material is cut by the shearing device 5, the fourth driving source 2324 drives the fourth rack 2321 to slide, the fourth rack 2321 drives the fourth gears 2322 to rotate, the rotating fourth gears 2322 drive the cam shafts 2323 to rotate, the convex block of the cam shaft 2323 upwards impacts the top impact plate 231 in the rotating process, the top impact plate 231 upwards slides to top impact the material to achieve the effect of assisting fracture, the top impact plate 231 is released from the jacking effect on the top impact plate 231 after the cam shaft 2323 continues to rotate, and the top impact plate 231 downwards slides under the action of gravity until the top impact plate 231 abuts against the cam shaft 2323.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a roll forming machine, includes frame (1), a plurality of shaping units (2) have been arranged along material advancing direction in frame (1), each shaping unit (2) all including rotate upper roll (201) and lower roll (202) that set up in frame (1), still be provided with on frame (1) and be used for driving each lower roll (202) pivoted drive arrangement (3), each all be provided with drive upper roll (201) pivoted drive assembly (4) on lower roll (202), still be provided with shearing mechanism (5) that cut the material on frame (1) discharge end, its characterized in that: each upper roll (201) is provided with sliding seats (7) which vertically slide on a rack (1) at two axial ends, each sliding seat (7) is connected with an adjusting rod (8) with a vertically-arranged axis in a threaded manner, each adjusting rod (8) is rotatably arranged on the rack (1), each adjusting rod (8) is coaxially fixed with a first gear (9), the rack (1) is further provided with first racks (10) which are positioned on two sides of the material advancing direction in a sliding manner, the first racks (10) are respectively engaged with the first gears (9) on the corresponding sides, and the rack (1) is further provided with a synchronous driving assembly (11) which is used for driving the two first racks (10) to synchronously slide along the material advancing direction.

2. The roll forming machine according to claim 1, wherein: the synchronous driving assembly (11) comprises a first box body (111), a first driving piece (112) and a first driving source (113), wherein a first sliding groove (12) for sliding corresponding to the first rack (10) is formed in the first box body (111) in a penetrating mode along the two ends of the length direction of the first rack (10), a second sliding groove (13) for sliding the first driving piece (112) in the direction perpendicular to the two first racks (10) is formed in the first box body (111), the first sliding groove (12) is communicated with the second sliding groove (13), a third sliding groove (14) for sliding corresponding to the first rack (10) is formed in the first driving piece (112) in a penetrating mode along the two ends of the length direction of the first rack (10), sliding columns (15) are vertically connected to the first racks (10), and the axes of the sliding columns (15) are vertically arranged in the sliding directions of the first rack (10) and the first driving piece (112), a fourth sliding groove (16) for sliding the sliding column (15) is formed in the first driving piece (112), the first driving source (113) is arranged on the first box body (111), and the output end of the first driving source (113) is connected with the first driving piece (112); when the first driving source (113) drives the first driving piece (112) to slide, the sliding column (15) slides along the fourth sliding groove (16) to drive the first rack (10) to slide along the first sliding groove (12).

3. The roll forming machine according to claim 2, wherein: two all be provided with sliding column (15) on first rack (10) along the both sides that sliding column (15) axis direction set up, set up on first driving piece (112) and supply fourth spout (16) that each sliding column (15) slided, still set up on first box (111) along fifth spout (17) that first rack (10) sliding direction set up, each one end that first rack (10) were kept away from in sliding column (15) runs through fourth spout (16) and extends to in fifth spout (17).

4. The roll forming machine according to claim 1, wherein: each first gear (9) is set as a helical gear, and the parts of the two first racks (10) meshed with the first gears (9) are set as helical racks; the rack (1) is further provided with a limiting assembly (18) for limiting the sliding of the first rack (10), the limiting assembly (18) comprises a limiting gear (181) meshed with the first rack (10) and a sliding shaft (182) coaxially fixed with the limiting gear (181), the rack (1) is provided with a sixth sliding groove (20) for the sliding shaft (182) to lift and slide, and the sliding shaft (182) is arranged in a regular prism shape.

5. The roll forming machine according to claim 4, wherein: when sliding shaft (182) slided in sixth spout (20), sliding shaft (182) outer wall and the inside wall of sixth spout (20) are provided with and reserve seam (21), it is equipped with stationary blade (22) to reserve seam (21) interpolation.

6. The roll forming machine according to claim 1, wherein: the synchronous driving assembly (11) comprises a second box body (24), a second driving source (25), a driving wheel (26) and a driven wheel (27), wherein the second box body (24) is arranged on the rack (1) and positioned between two first racks (10), a seventh chute (28) for sliding the two first racks (10) is formed in the second box body (24), the second driving source (25) is arranged on the second box body (24), the driving wheel (26) is coaxially arranged on the output end of the second driving source (25), the driven wheel (27) is provided with two groups and respectively positioned on one side of the driving wheel (26) close to the first racks (10), the driven wheel (27) on one side of the driven wheel (27) far away from the driving wheel (26) is respectively meshed with the corresponding first racks (10), one group of the driven wheels (27) is a singular piece, another set of said driven wheels (27) is provided as an even number of pieces.

7. The roll forming machine according to claim 1, wherein: each transmission assembly (4) comprises a second gear (41) which is arranged on each upper roller (201) and each lower roller (202) and is far away from the axial end of the driving device (3), each forming unit (2) is correspondingly provided with a pair of third gears (42) which are meshed and connected, each third gear (42) is rotatably arranged on the rack (1), a gear on the lower side of each pair of third gears (42) is meshed with the second gear (41) on the lower roller (202), and a gear on the upper side of each pair of third gears (42) is meshed with the second gear (41) on the upper roller (201).

8. The roll forming machine according to claim 1, wherein: an inference mechanism (23) for knocking materials is arranged at the discharging end of the rack (1), and the inference mechanism (23) comprises a knocking plate (231) which is lifted and slid on the rack (1) and a first driving assembly (232) for driving the knocking plate (231) to lift.

9. The roll forming machine according to claim 8, wherein: the first driving assembly (232) comprises a fourth rack (2321), a fourth gear (2322), at least two camshafts (2323) and a fourth driving source (2324), the camshafts (2323) are uniformly distributed in the length direction of the top impact plate (231), each camshaft (2323) is rotatably arranged on the rack (1) and each axis is arranged in parallel, the fourth gear (2322) is coaxially fixed to the camshaft (2323), the fourth rack (2321) is meshed with each fourth gear (2322), the fourth rack (2321) is arranged in a sliding manner in the length direction of the top impact plate (231) to drive each fourth gear (2322) to rotate synchronously, and a convex block of each camshaft (2323) is located on the right lower side of the top impact plate (231) to enable the top impact plate (231) to ascend and slide upwards.