CN214392112U

CN214392112U - Automatic-traction steel bar pre-straightening device

Info

Publication number: CN214392112U
Application number: CN202120183996.XU
Authority: CN
Inventors: 项金伟
Original assignee: Shandong Zhongji Luyuan Machinery Co ltd
Current assignee: Shandong Zhongji Luyuan Machinery Co ltd
Priority date: 2021-01-23
Filing date: 2021-01-23
Publication date: 2021-10-15
Anticipated expiration: 2031-01-23

Abstract

An automatic-traction reinforcing steel bar pre-straightening device structurally comprises: the device comprises a frame, a riding wheel, a locking traction mechanism and a straightening wheel group. The locking traction device drives a roller to rotate by a hydraulic motor to drive the steel wire rope to be wound and unwound, a locking shuttle is assembled at the end part of the steel wire rope, and one end of the locking shuttle clamps the end part of the steel bar to be straightened by a jackscrew; the straightening wheel set consists of an upper straightening wheel set and a lower straightening wheel set which can move relatively along with the rotation of the eccentric shaft, and the hydraulic motor drives the gear to drive the eccentric shaft to rotate so as to clamp or loosen the steel bar to be straightened through the anisotropic movement of the upper straightening wheel set and the lower straightening wheel set; in addition, a hydraulic motor is arranged to drive the driving wheel to drive the reinforcing steel bars to move back and forth so as to realize pre-straightening of the reinforcing steel bars. The utility model has the advantages that: the traction, clamping and straightening of the steel bar pre-straightening process are completed by hydraulic drive, the straightening effect is simple and convenient to adjust, the operation is safe and reliable, and the automation degree is high.

Description

Automatic-traction steel bar pre-straightening device

Technical Field

The utility model relates to a numerical control reinforcing bar hoop bending machine, especially numerical control reinforcing bar hoop bending machine draw straightener in advance.

Background

In the work of numerical control reinforcing bar hoop bending machine, need artifically take out the reinforcing bar from a set muscle pay off rack and penetrate the initiative traction position of host computer, the diameter of the former material of a set muscle reinforcing bar that uses at present at home and abroad is increasing, and the crooked radian of reinforcing bar itself causes and wears the muscle difficulty, and the degree of difficulty of artifical pre-straightening reinforcing bar is big, and easily injures the operator at the aligning and wears the muscle in-process, and the security is low, and is inefficient.

Disclosure of Invention

The utility model provides an automatic towed reinforcing bar is straightener in advance, its purpose is dragged by hydraulic drive and treats the aligning reinforcing bar, and aligning wheelset self-holding and transport realize the automatic pre-straightening of different specifications especially major diameter reinforcing bar, improve security and degree of automation.

The technical scheme for realizing the aim of the invention is as follows: an automatic rebar pre-straightening device, comprising: the supporting roller is hinged on the rack; a roller wound with a steel wire rope is hinged on the rack; one end of the steel wire rope is fixed on the roller, and the other end of the steel wire rope is fixedly connected with a locking shuttle capable of locking the end part of the steel bar; the rack is hinged with a guide wheel; the frame is provided with a straightening wheel set, and the straightening wheel set is provided with a straightening support plate fixedly connected to the frame; an upper straightening wheel set and a lower straightening wheel set are mounted on the straightening support plate; the upper straightening wheel set is hinged in a mounting hole of the straightening support plate through an upper eccentric shaft; the lower straightening wheel set is hinged in a mounting hole of the straightening support plate through a right lower eccentric shaft and a left lower eccentric shaft; the upper eccentric shaft, the right lower eccentric shaft and the left lower eccentric shaft are fixedly connected with large gears which are meshed up and down; the output end of the upper eccentric shaft is hinged with a driven wheel, the output ends of the right lower eccentric shaft and the left lower eccentric shaft are hinged with a follow-up plate (two fine adjustment driven mechanisms are installed on the follow-up plate), a meshed driving pinion is arranged between two large gears of the upper straightening wheel set, the driving pinion drives the large gears to drive the upper eccentric shaft, the right lower eccentric shaft and the left lower eccentric shaft to rotate so as to clamp and release the upper straightening wheel set and the lower straightening wheel set, a long driving shaft penetrates through a through hole of the left lower eccentric shaft, one end of the long driving shaft is fixedly connected with a driving hydraulic motor, and the other end of the long driving shaft is hinged with the through hole of the left lower eccentric shaft and is fixedly connected with a driving wheel.

Preferably, the riding wheel is arranged between the upper straightening wheel group and the lower straightening wheel group and is arranged at the inlet end of the steel bar; the guide wheel is arranged between the upper straightening wheel set and the lower straightening wheel set and is arranged at the outlet end of the steel bar; the guide wheel is provided with a V-shaped groove.

Preferably, the drum is keyed to rotate by a traction hydraulic motor.

Preferably, one end of the steel wire rope is fixedly arranged on the roller, and one end of the steel wire rope is in threaded clamping connection with the locking shuttle; a locking sleeve is placed in a hole at one end of the locking shuttle, and a threaded fastening sleeve is arranged outside the locking sleeve; the other end of the locking shuttle is provided with a steel bar channel hole, and the side surface of the steel bar channel hole is provided with a threaded hole and a jackscrew.

Preferably, the driven wheel is provided with a V-shaped groove.

Preferably, the straightening support plate is provided with four mounting holes, and bearings are mounted in the mounting holes.

Preferably, the middle ends of the upper eccentric shaft, the right lower eccentric shaft and the left lower eccentric shaft are connected with an upper gearwheel and a lower gearwheel through four bearing holes of a straightening support plate and keys, the input ends and the middle ends of the two upper eccentric shafts are coaxially hinged with a clamping motor fixing plate, a clamping hydraulic motor is fixedly installed on the clamping motor fixing plate, and the clamping hydraulic motor is connected with a driving pinion through keys; the input end and the output end of the right lower eccentric shaft and the left lower eccentric shaft are coaxial, the input ends of the right lower eccentric shaft and the left lower eccentric shaft are hinged to the driving motor mounting plate, the driving hydraulic motor is fixedly mounted on the driving motor mounting plate, and the driving hydraulic motor drives the driving wheel to rotate through the long driving shaft connected in a key mode.

Preferably, the lower straightening wheel group is provided with a follow-up plate with a hole, and two holes of the follow-up plate are hinged with the output ends of the right lower eccentric shaft and the left lower eccentric shaft; two fine tuning driven mechanisms are arranged on the follow-up plate, and the fine tuning driven mechanisms are provided with small eccentric shafts; one end of the small eccentric shaft is hinged to the follow-up plate, and the other end of the small eccentric shaft is hinged to the driven wheel; the middle end key of the small eccentric shaft is connected with a turbine, and the turbine is matched with a worm hinged to the fixed block; the fixed block is fixedly arranged on the follow-up plate.

The utility model has the advantages that: the traction, clamping and straightening of the steel bar pre-straightening process are completed by hydraulic drive, the straightening effect is simple and convenient to adjust, the operation is safe and reliable, and the automation degree is high.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a right side view of the present invention.

Figure 3 is a front view of the straightening wheel group in figure 1.

Fig. 4 is a left side view of fig. 3.

FIG. 5 is a sectional view taken along the line A-A in FIG. 3, showing the structural components of the upper straightening wheel group.

FIG. 6 is a sectional view taken along the direction C-C in FIG. 3, showing the structural composition of the lower straightening wheel group.

Fig. 7 is a sectional view taken along line B-B of fig. 4, showing a gear engagement structure.

Fig. 8 is a rear view of fig. 3.

Fig. 9 is a cross-sectional view of the locking shuttle of fig. 1 showing a structural schematic of the locking shuttle.

The numbering in the drawings illustrates: 1, a frame; 2. a riding wheel; 3. locking the traction device; 31. a wire rope; 32. a drum; 33. a traction hydraulic motor; 34. a locking shuttle; 341. a locking sleeve; 342. a threaded fastening sleeve; 343. a reinforcing steel bar passage hole; 344. carrying out top thread; 4. a guide wheel; 5. a straightening wheel set; 51. straightening the support plate; 511. a bearing; 52. an upper straightening wheel set; 521. an upper eccentric shaft; 53. a lower straightening wheel set; 531. a right lower eccentric shaft; 532. a left lower eccentric shaft; 533. a follower plate; 534. finely adjusting the driven mechanism; 5341. a small eccentric shaft; 5342. a turbine; 5343. a worm; 5344. a fixed block; 6. a bull gear; 7. a drive pinion; 8. a long drive shaft; 9. a driven wheel; 10. a driving wheel; 11. clamping the motor fixing plate; 12. clamping the hydraulic motor; 13. a drive motor mounting plate; 14. driving a hydraulic motor; a. reinforcing steel bars; b. a reinforcing steel bar inlet end; c. and (4) a steel bar outlet end.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 and 2, the utility model provides an automatic towed reinforcing bar is straightener in advance, this automatic towed reinforcing bar is straightener in advance includes: the device comprises a rack 1, a riding wheel 2 hinged on the rack 1, a traction locking mechanism 3 fixedly arranged on the rack 1, a guide wheel 4 hinged on the rack 1 and a straightening wheel group 5 fixedly arranged on the rack 1.

The traction locking mechanism 3 comprises a roller 32 wound by a steel wire rope 31, one end of the steel wire rope 31 is fixed on the roller 32, and the other end of the steel wire rope 31 is fixedly connected with a locking shuttle 34 at the end part of the steel bar a.

As shown in fig. 9, a locking sleeve 341 is disposed in an end hole of the locking shuttle 34, and a screw fastening sleeve 342 is disposed outside the locking sleeve 341; the other end of the locking shuttle 34 is provided with a steel bar passage hole 343, and the side of the steel bar passage hole 343 is provided with a threaded hole and a jackscrew 344.

As shown in fig. 1 and 3, the supporting roller 2 is arranged between the upper straightening wheel group 52 and the lower straightening wheel group 53 and at the rebar inlet end b, and the supporting roller 2 lifts the rebar a to be straightened to prevent the rebar a from entering the device to damage the device; the guide wheel 4 is arranged between the upper straightening wheel group 52 and the lower straightening wheel group 53 and is arranged at the steel bar outlet end c; the slotting direction of the guide wheel 4 is coplanar with the reeling and unreeling directions of the steel wire rope 31.

As shown in fig. 3-8, the straightening wheel group 5 is provided with a straightening support plate 51 fixedly connected to the frame 1; an upper straightening wheel group 52 and a lower straightening wheel group 53 are arranged on the straightening support plate 51; the upper straightening wheel set 52 is hinged in a mounting hole of the straightening support plate 51 through an upper eccentric shaft 521; the lower straightening wheel group 53 is hinged in a mounting hole of the straightening support plate 51 through a right lower eccentric shaft 531 and a left lower eccentric shaft 532; the upper eccentric shaft 521, the right lower eccentric shaft 531 and the left lower eccentric shaft 532 are all in key connection with a bull gear 6 which is meshed with each other up and down; the output ends of the upper eccentric shaft 521 and the right lower eccentric shaft 531 are hinged with a driven wheel 9 with a V-shaped groove; a driving pinion 7 meshed with the two bull gears 6 of the upper straightening wheel group 52 is arranged between the two bull gears; the driving pinion 7 drives the bull gear 6 to rotate so as to drive the upper eccentric shaft 521, the right lower eccentric shaft 531 and the left lower eccentric shaft 532 to rotate, so that the upper straightening wheel set 52 and the lower straightening wheel set 53 are clamped and loosened; the through hole of the left lower eccentric shaft 532 penetrates through the long driving shaft 8, and one end of the long driving shaft 8 is fixedly connected with a driving wheel 10 provided with a tooth socket.

The straightening support plate 51 is provided with four mounting holes, and bearings 511 are arranged in the mounting holes.

The middle ends of the upper eccentric shaft 521, the right lower eccentric shaft 531 and the left lower eccentric shaft 532 are connected with an upper gearwheel 6 and a lower gearwheel 6 through the inner holes of a bearing 511 and keys, the input ends and the middle ends of the two upper eccentric shafts 521 are coaxially hinged with a clamping motor fixing plate 11, a clamping hydraulic motor 12 is fixedly installed on the clamping motor fixing plate 11, and the clamping hydraulic motor 12 is connected with a driving pinion 7 through keys; the input ends and the output ends of the right lower eccentric shaft 531 and the left lower eccentric shaft 532 are coaxial, the input ends of the right lower eccentric shaft 531 and the left lower eccentric shaft 532 are hinged to a driving motor mounting plate 13, a driving hydraulic motor 14 is fixedly mounted on the driving motor mounting plate 13, the driving hydraulic motor 14 drives a driving wheel 10 to rotate through a long driving shaft 8 in key connection, and then the clamped steel bar a is driven to move forwards or backwards.

The lower straightening wheel group 53 is provided with a following plate 533 with a hole, and two holes of the following plate 533 are hinged with the output ends of the right lower eccentric shaft 531 and the left lower eccentric shaft 532; two fine-tuning driven mechanisms 534 are mounted on the follower plate 533, and a small eccentric shaft 5341 arranged on the fine-tuning driven mechanisms 534 is hinged to the follower plate 533; one end of the small eccentric shaft 5341 is connected with a worm 5342, the worm 5342 is matched with a worm 5343 hinged to a fixed block 5344, and the fixed block 5344 is fixedly arranged on the follow-up plate 533.

The working process of the present invention will be described below.

The working process of realizing automatic traction of the steel bars is as follows: the end part of the steel wire rope 31 is inserted into the locking sleeve 341, the thread fastening sleeve 342 is rotated to clamp the locking sleeve 341 so as to lock the end part of the steel wire rope 31, the traction hydraulic motor 33 drives the roller 32 to rotate to release the steel wire rope 31 to wind the guide wheel 4 and reach the position of a raw steel bar material through the space between the upper straightening wheel group 52 and the lower straightening wheel group 53, the end part of the steel bar a is inserted into a steel bar channel hole 343 of the locking shuttle 34 and tightly props against the jackscrew 344, and the fixed connection of the steel bar a and the locking traction device 3 is realized; the traction hydraulic motor 33 drives the roller 32 to rotate to pull the steel bar a to the V-shaped groove of the guide wheel 4; the top thread 344 is released and the reinforcement bar a to be straightened is located between the upper straightening wheel set 52 and the lower straightening wheel set 53.

The working process of pre-straightening the reinforcing steel bar is realized: the clamping hydraulic motor 12 drives the pinion 7 to drive the meshed 2 bull gears 6, and then drives the 2 bull gears 6 of the lower straightening wheel set 53 to rotate; the upper eccentric shaft 521 rotates, and the driven wheel 9 hinged with the output end of the upper eccentric shaft 521 moves downwards; the input end of the upper eccentric shaft 521 is coaxial with the middle end connected with the large gear 6 and keeps the clamping hydraulic motor 12 arranged on the clamping motor fixing plate 11 from displacing along with the rotation of the upper eccentric shaft 521 and the driving pinion 7 from displacing; the input end and the output end of the right lower eccentric shaft 531 and the left lower eccentric shaft 532 are coaxial, so that the same displacement is kept between the input end and the output end, and the displacement direction is opposite to the displacement direction of the output end of the upper eccentric shaft 521 so as to realize the reverse movement of the upper straightening wheel group 52 and the lower straightening wheel group 53, and further realize the clamping and the loosening of the steel bar a to be straightened; the rotation of the right lower eccentric shaft 531 and the left lower eccentric shaft 532 drives the follower plate 533 and the drive motor mounting plate 13 to displace in the same manner; the driving hydraulic motor 14 fixedly arranged on the driving motor mounting plate 13 drives the clamped steel bar a to move forward and backward through positive and negative rotation, so that the pre-straightening of the steel bar a is realized; the straightening effect of the steel bar a can be adjusted by the displacement of the upper eccentric shaft 521, the right lower eccentric shaft 531 and the left lower eccentric shaft 532 driven by the rotation of the clamping hydraulic motor 12.

The supplement method for realizing the enhancement of the pre-straightening effect of the steel bar comprises the following steps: when the clamped reinforcing steel bar a still cannot penetrate into the inlet of subsequent straightening processing equipment after advancing and retreating, the straightening effect of the reinforcing steel bar a can be improved by adjusting the fine adjustment driven mechanism 534; when the end of the pre-straightened steel bar a is bent into a downward convex arc shape, rotating the worm 5343 at the steel bar inlet end b or rotating the worm 5343 at the steel bar outlet end c in the opposite direction to drive the matched turbine 5342 to rotate so as to drive the matched small eccentric shaft 5341 to rotate, moving the driven wheel 9 hinged with the small eccentric shaft 5341 at the steel bar inlet end b to the clamping direction, moving the driven wheel 9 hinged with the small eccentric shaft 5341 at the steel bar outlet end c to the loosening direction, and moving the steel bar forward and backward again by clamping the steel bar so as to improve the straightening effect; when the end of the pre-straightened steel bar a is bent into an arc shape and is upwards convex, the worm 5343 is rotated, the driven wheel 9 at the steel bar inlet end b moves towards the loosening direction, the driven wheel 9 at the steel bar outlet end c moves towards the clamping direction, and the straightening effect can be improved by clamping the steel bar again and moving forwards and backwards.

Claims

1. An automatic-traction steel bar pre-straightening device is characterized by comprising: the device comprises a rack (1) and a riding wheel (2) hinged on the rack (1); a roller (32) wound with a steel wire rope (31) is hinged on the rack (1); one end of the steel wire rope (31) is fixed on the roller (32), and the other end of the steel wire rope is fixedly connected with a locking shuttle (34) capable of locking the end part of the steel bar (a); the frame (1) is hinged with a guide wheel (4); a straightening wheel set (5) is arranged on the rack (1), and the straightening wheel set (5) is provided with a straightening support plate (51) fixedly connected to the rack (1); an upper straightening wheel set (52) and a lower straightening wheel set (53) are arranged on the straightening support plate (51); the upper straightening wheel set (52) is hinged in a mounting hole of the straightening support plate (51) through an upper eccentric shaft (521); the lower straightening wheel set (53) is hinged in a mounting hole of the straightening support plate (51) through a right lower eccentric shaft (531) and a left lower eccentric shaft (532); the upper eccentric shaft (521), the right lower eccentric shaft (531) and the left lower eccentric shaft (532) are fixedly connected with large gears (6) which are meshed up and down; the output end of the upper eccentric shaft (521) is hinged with a driven wheel (9), the output ends of the right lower eccentric shaft (531) and the left lower eccentric shaft (532) are hinged with a follow-up plate (533), and two fine-tuning driven mechanisms (534) are mounted on the follow-up plate (533); a driving pinion (7) meshed with the two bull gears (6) of the upper straightening wheel set (52) is arranged between the two bull gears; the driving pinion (7) drives the bull gear (6) to drive the upper eccentric shaft (521), the right lower eccentric shaft (531) and the left lower eccentric shaft (532) to rotate so as to clamp and release the upper straightening wheel set (52) and the lower straightening wheel set (53); the through hole of the left lower eccentric shaft (532) is internally penetrated by a long driving shaft (8), one end of the long driving shaft (8) is fixedly connected with a driving hydraulic motor (14), and the other end of the long driving shaft (8) is hinged to the through hole of the left lower eccentric shaft (532) and is fixedly connected with a driving wheel (10).

2. The self-pulling rebar pre-straightener as claimed in claim 1, wherein: the riding wheel (2) is arranged between the upper straightening wheel group (52) and the lower straightening wheel group (53) and arranged at the steel bar inlet end (b).

3. The self-pulling rebar pre-straightener as claimed in claim 1, wherein: the guide wheel (4) is arranged between the upper straightening wheel set (52) and the lower straightening wheel set (53) and is arranged at the outlet end (c) of the reinforcing steel bar; the guide wheel (4) is provided with a V-shaped groove.

4. The self-pulling rebar pre-straightener as claimed in claim 1, wherein: the drum (32) is connected with a driving shaft by a traction hydraulic motor (33) in a key mode to rotate, one end of the steel wire rope (31) is fixedly installed on the drum (32), and one end of the steel wire rope is connected with a locking shuttle (34) in a threaded clamping mode.

5. The self-pulling rebar pre-straightener as claimed in claim 3, wherein: a locking sleeve (341) is placed in a hole at one end of the locking shuttle (34), and a thread fastening sleeve (342) is arranged outside the locking sleeve (341); the other end of the locking shuttle (34) is provided with a steel bar channel hole (343), and the side surface of the steel bar channel hole (343) is provided with a threaded hole and a jackscrew (344).

6. The self-pulling rebar pre-straightener as claimed in claim 1, wherein: the driven wheel (9) is provided with a V-shaped groove.

7. The self-pulling rebar pre-straightener as claimed in claim 1, wherein: four mounting holes are formed in the straightening support plate (51), and bearings (511) are mounted in the mounting holes.

8. The self-pulling rebar pre-straightener as claimed in claim 1, wherein: the middle ends of the upper eccentric shaft (521), the right lower eccentric shaft (531) and the left lower eccentric shaft (532) pass through four bearing holes of the straightening support plate (51) and are connected with an upper gearwheel and a lower gearwheel (6) through keys, the input ends and the middle ends of the two upper eccentric shafts (521) are coaxially hinged with a clamping motor fixing plate (11), a clamping hydraulic motor (12) is fixedly installed on the clamping motor fixing plate (11), and the clamping hydraulic motor (12) is connected with a driving pinion (7) through keys; the input end and the output end of the right lower eccentric shaft (531) and the left lower eccentric shaft (532) are coaxial, the input ends of the right lower eccentric shaft (531) and the left lower eccentric shaft (532) are hinged to a driving motor mounting plate (13), a driving hydraulic motor (14) is fixedly mounted on the driving motor mounting plate (13), and the driving hydraulic motor (14) drives a driving wheel (10) to rotate through a long driving shaft (8) in key connection.

9. The self-pulling rebar pre-straightener as claimed in claim 1, wherein: the lower straightening wheel set (53) is provided with a following plate (533) with a hole, and two holes of the following plate (533) are hinged with the output ends of the right lower eccentric shaft (531) and the left lower eccentric shaft (532); two fine-tuning driven mechanisms (534) are mounted on the follow-up plate (533), the fine-tuning driven mechanisms (534) are provided with small eccentric shafts (5341), one ends of the small eccentric shafts (5341) are hinged to the follow-up plate (533), and the other ends of the small eccentric shafts are hinged to the driven wheel (9); the middle end of the small eccentric shaft (5341) is connected with a turbine (5342), the turbine (5342) is matched with a worm (5343) hinged to a fixed block (5344), and the fixed block (5344) is fixedly installed on a follow-up plate (533).