CN113967675A

CN113967675A - Pay-off rack

Info

Publication number: CN113967675A
Application number: CN202111089286.1A
Authority: CN
Inventors: 王高华; 王文浩; 王文韬
Original assignee: Hunan Gaohua New Materials Technology Co ltd
Current assignee: Hunan Gaohua New Materials Technology Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-01-25
Anticipated expiration: 2041-09-16
Also published as: CN113967675B

Abstract

The invention provides a pay-off rack which comprises a transfer vehicle frame, wherein the bottom surface of the transfer vehicle frame is provided with a plurality of universal wheels, the bottom surface of the transfer vehicle frame is connected with a cross beam through an upright post, the cross beam comprises a first fixed beam, a second fixed beam and a movable beam, two ends of the second fixed beam are respectively and vertically connected with the two first fixed beams which are arranged in parallel, the movable beam and the second fixed beam are arranged in parallel, one end of the movable beam is hinged with the upright post, the other end of the movable beam is detachably connected with the adjacent upright post, the movable beam and the second fixed beam are respectively provided with a bearing seat, and a self-centering bracket for fixing coil materials is arranged between the two bearing seats; the pay-off rack provided by the invention is quick in material change and flexible in maneuvering, integrates the functions of feeding, lifting and moving, can be directly butted with a straightening mechanism of a hoop bending machine, and avoids the distortion of reinforcing steel bars during feeding, thereby improving the production quality and efficiency.

Description

Pay-off rack

Technical Field

The invention belongs to the technical field of steel bar processing equipment, and particularly relates to a pay-off stand.

Background

The main structure of various current buildings is reinforced concrete structure, and need use a large amount of framework of steel reinforcement among the reinforced concrete structure, the stirrup of constituteing framework of steel reinforcement mainly is by the manual work before through lever instrument bending forming, workman's the amount of labour is very big and inefficiency, if large-scale building is built, then need a large amount of workers to engage in hoop bending work and just can guarantee the daily demand, and the shape of the stirrup that the manual work bent, the size has the difference, the framework of steel reinforcement appearance of constituteing with it can take place the distortion, cause the reinforced concrete structure intensity to descend. At present, in order to improve the working efficiency of stirrup bending and forming and reduce the labor intensity of workers, mechanical automatic stirrup bending machines are gradually popularized.

When a hoop bending machine is used for processing coiled steel bars, an existing discharging frame generally vertically places coil materials, and the coil materials are loaded onto the upper discharging frame by manually using a forklift to lift the coil materials to the discharging frame or move the coil materials to the discharging frame by a crane. On one hand, most production sites do not have the condition of installing and hoisting, the operation difficulty is high by totally relying on manual feeding, the labor intensity is high, and potential safety hazards exist; on the other hand, the reinforcing bar is with circular off-line mode alignment and need unwrapping wire cage lateral extrusion, reaches the alignment purpose, has reinforcing bar distortion problem, and the card machine is shut down when more making the reinforcing bar feeding during serious, seriously influences the production progress.

Disclosure of Invention

The invention aims to solve the technical problem of providing a pay-off stand which is quick in material changing, flexible in maneuvering, capable of integrating automatic feeding, lifting and moving into a whole, capable of directly abutting against a straightening mechanism of a hoop bending machine and capable of avoiding distortion of reinforcing steel bars during feeding.

In order to achieve the purpose, the pay-off rack comprises a transfer vehicle frame, wherein a plurality of universal wheels are arranged on the bottom surface of the transfer vehicle frame, a cross beam is connected to the bottom surface of the transfer vehicle frame through upright columns, the cross beam comprises a first fixed beam, a second fixed beam and a movable beam, two ends of the second fixed beam are respectively and vertically connected with the two first fixed beams which are arranged in parallel, the movable beam is arranged in parallel with the second fixed beam, one end of the movable beam is hinged with the upright columns, the other end of the movable beam is detachably connected with the adjacent upright columns, bearing seats are arranged on the movable beam and the second fixed beam, and a self-centering support for fixing coiled materials is arranged between the two bearing seats.

More specifically, from centering support including locating the pivot between two bearing frames, be equipped with fixed articulated flange and activity articulated flange in the pivot, evenly be equipped with three at least pin joints of group on fixed articulated flange and the activity articulated flange respectively, all handing-over has the scissors fork on every group pin joint, the other end of scissors fork is connected with the centering rod, the both ends of pivot all are equipped with the crossing frame that sets up along its radial direction, the both ends of centering rod respectively with two crossing frame sliding connection, be equipped with in the pivot and be used for driving activity articulated flange along the reciprocating sliding's of pivot axial direction drive arrangement.

More specifically, the scissors fork includes first tensioning lever and second tensioning lever, the both ends of first tensioning lever are articulated with fixed articulated flange and centering rod respectively, the one end and the articulated flange of activity of second tensioning lever are articulated, the other end and centering rod sliding connection.

More specifically, the rotating shaft is provided with a sliding groove along the axial direction, and a driving block on the driving device penetrates through the sliding groove to be connected with the movable hinged flange.

More specifically, the fixed hinged flange and the movable hinged flange are two, and a driving block on the driving device is connected with the two movable hinged flanges through a driving connecting rod.

More specifically, the cross arm is located the one end that the pivot is close to the fixed roof beam of second, the centering rod includes the horizontal pole that sets up along the axial direction of pivot, the both ends of horizontal pole are connected with first vertical pole and the second vertical pole with cross arm sliding connection, the one end that the horizontal pole is close to the fixed roof beam of second is located to first vertical pole, the one end that the horizontal pole is close to the walking beam is located to the second vertical pole, coaxial centering shelves pole that is equipped with on the first vertical pole.

More specifically, a centering telescopic stop lever is coaxially arranged on the second longitudinal rod.

More specifically, move and be equipped with elevating gear on the frame of carrying, the stand endotheca is equipped with the slip post, the top of slip post is all located to first fixed beam, second fixed beam and walking beam, first fixed beam is connected respectively and is carried the frame with carrying at elevating gear's both ends.

More specifically, the movable beam is provided with a locking pin for locking the self-centering bracket.

More specifically, the universal wheel is provided with a pedal brake block.

The invention has the advantages that when in use, the moving and carrying frame is pushed to the coil stock, the self-centering bracket is enabled to extend into the position which is deviated from the center of the inner hole of the coil stock along the horizontal direction, the movable beam is rotated to leave the space for inserting the coil stock, the moving and carrying frame is pushed to enable the self-centering bracket to be inserted into the inner hole of the coil stock until the coil stock is completely sleeved on the self-centering bracket, the movable beam is rotated back and fixed with the upright post, so that the bearing seat on the movable beam is sleeved on the self-centering support, the self-centering support is propped open to automatically center the coil stock, the top end of the self-centering support is firstly contacted with the inner side wall of the coil stock, the self-centering support is continuously propped open until the coil stock is coaxial with the self-centering support, the coil stock leaves the ground at the moment, the coil stock is loaded, the transfer vehicle frame is moved to a designated position, then the coil material end of thread can be pulled out to be butted with a modulation mechanism of the hoop bending machine for production, so that the production efficiency can be improved; the coil stock is horizontal both ends atress, and the direction that the coil stock unreeled just unanimous with former collection direction to solve the material distortion, obtain the uniform motion effect, the reinforcing bar gets into the high float of straightening mechanism when can reducing the unwrapping wire, makes the reinforcing bar get into straightening mechanism along the straight line, and then solves straightening mechanism feeding difficult problem, guarantees the production quality.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of the column of FIG. 1;

FIG. 3 is a schematic structural view of the cross beam shown in FIG. 1;

FIG. 4 is a schematic structural view of the self-centering fixture of FIG. 1;

FIG. 5 is a schematic view of the scissors fork of FIG. 4;

fig. 6 is a schematic structural view of the driving link shown in fig. 5.

In the figure, 100, coil stock; 1. a transfer frame; 11. a universal wheel; 2. a column; 21. a sliding post; 3. a cross beam; 31. a first fixed beam; 32. a second fixed beam; 33. a movable beam; 331. a locking pin; 34. a bearing seat; 4. a self-centering support; 41. a rotating shaft; 42. a fixed hinged flange; 43. a movable hinged flange; 44. a scissor fork; 441. a first tensioning bar; 442. a second tensioning rod; 45. a centering rod; 451. a cross bar; 452. a first longitudinal bar; 453. a second longitudinal bar; 454. a centering stop lever; 455. centering the telescopic stop lever; 46. a cross frame; 47. a chute; 5. a drive device; 51. a drive link; 6. a lifting device.

Detailed Description

The technical scheme of the invention is further described in detail by combining the drawings and the specific embodiments:

referring to fig. 1-6 together, the pay-off stand provided in this embodiment includes a transfer frame 1, a plurality of universal wheels 11 are disposed on a bottom surface of the transfer frame 1, a cross beam 3 is connected to a bottom surface of the transfer frame 1 through an upright 2, the cross beam 3 includes a first fixed beam 31, a second fixed beam 32 and a movable beam 33, two ends of the second fixed beam 32 are respectively connected to the two first fixed beams 31 disposed in parallel, the movable beam 33 is disposed in parallel with the second fixed beam 32, one end of the movable beam 33 is hinged to the upright 2, the movable beam 33 rotates on a horizontal plane or a vertical plane with a hinge shaft as an axis, the other end is detachably connected to the adjacent upright 2, bearing seats 34 are disposed on the movable beam 33 and the second fixed beam 32, and a self-centering bracket 4 for fixing a coil stock 100 is disposed between the two bearing seats 34.

When the self-centering automatic centering device is used, the transfer vehicle frame 1 is pushed to the coil stock 100, the self-centering support 4 extends into the position, on the upper side of the center of the inner hole of the coil stock 100, the movable beam 33 is rotated to leave a space for inserting the coil stock 100, the transfer vehicle frame 1 is pushed to enable the self-centering support 4 to be inserted into the inner hole of the coil stock 100 until the coil stock 100 is completely sleeved on the self-centering support 4, the movable beam 33 is rotated back and fixed with the upright post 2, the bearing seat 34 on the movable beam 33 is sleeved on the self-centering support 4, the self-centering support 4 is propped to conduct automatic centering on the coil stock 100, the top end of the self-centering support 4 is firstly contacted with the inner side wall of the coil stock, the self-centering support 4 is continuously propped until the coil stock 100 is coaxial with the self-centering support 4, at the moment, the coil stock 100 leaves the ground, the transfer vehicle frame 1 is moved to a designated position after the coil stock 100 is loaded, and then the wire end of the coil stock 100 can be pulled out for production; coil stock 100 is horizontal both ends atress, and the direction that coil stock 100 unreeled unreels along tangential direction, just unanimous with former collection direction, can avoid the material distortion, obtains the uniform motion effect, and the reinforcing bar gets into the high float of straightening mechanism when can reducing the unwrapping wire for the reinforcing bar gets into straightening mechanism along the straight line, and then solves straightening mechanism feeding difficult problem, can stop because of the card machine that the material distortion arouses shuts down, guarantees that production normally goes on, promotes production efficiency.

More specifically, the self-centering support 4 includes a rotating shaft 41 disposed between two bearing seats 34, the rotating shaft 41 is provided with a fixed hinge flange 42 and a movable hinge flange 43, the fixed hinge flange 42 and the movable hinge flange 43 are respectively and uniformly provided with at least three groups of hinge points, each group of hinge points is respectively connected with a scissors fork 44, the other end of the scissors fork 44 is connected with a centering rod 45, two ends of the rotating shaft 41 are respectively provided with a cross frame 46 disposed along the radial direction thereof, two ends of the centering rod 45 are respectively connected with the two cross frames 46 in a sliding manner, and a driving device 5 for driving the movable hinge flange 43 to slide back and forth along the axial direction of the rotating shaft 41 is disposed in the rotating shaft 41; as shown in fig. 4, in the present embodiment, four sets of hinge points are uniformly disposed on the fixed hinge flange 42 and the movable hinge flange 43, the cross frames 46 are cross pipes perpendicular to each other, when the driving device 5 drives the movable hinge flange 43 to move leftward along the rotating shaft 41, the scissors 44 are spread, and two ends of the centering rod 45 move toward the rotating shaft 41 along the corresponding cross pipes on the cross frames 46; when the driving device 5 drives the movable hinged flange 43 to move rightwards along the rotating shaft 41, the scissor forks 44 are folded, and two ends of the centering rod 45 move towards the direction far away from the rotating shaft 41 along the corresponding cross pipes. The driving device 5 is any one of a hydraulic cylinder, a linear module driven by a motor or an air cylinder.

More specifically, the scissors fork 44 comprises a first tensioning rod 441 and a second tensioning rod 442, wherein both ends of the first tensioning rod 441 are respectively hinged to the fixed hinge flange 42 and the centering rod 45, one end of the second tensioning rod 442 is hinged to the movable hinge flange 43, and the other end is slidably connected to the centering rod 45; in this embodiment, the second tensioning rod 442 is slidably connected to the centering rod 45 through a roller, and a groove is formed on a contact surface between the roller and the centering rod 45, so as to prevent the roller from slipping off the centering rod 45; the centering rod 45 may also be provided with a slide rail, and the end of the second tensioning rod 442 is slidably connected to the slide rail via a pin or a slider.

More specifically, a sliding groove 47 is formed in the rotating shaft 41 in the axial direction, a driving block on the driving device 5 penetrates through the sliding groove 47 to be connected with the movable hinged flange 43, and the driving block on the driving device 5 moves along the sliding groove, so that the scissors fork 44 is unfolded or folded, and the centering rods 45 are stretched along the sleeves on the cross frame 46, and the centering rods 45 are unfolded or folded synchronously, so that the coiled material can coincide with the axial line of the rotating shaft 41, and the stability of uncoiling of the coiled material is ensured.

More specifically, the fixed hinge flange 42 and the movable hinge flange 43 are two, and a driving block on the driving device 5 is connected with the two movable hinge flanges 43 through a driving connecting rod 51; two adjacent fixed hinged flanges 42 and activity hinged flange 43 are a set of, can support for the both ends of centering rod 45 provide, guarantee that centering rod 45 supports the coil stock completely to realize that coil stock 100 rotates with the axle center with pivot 41, barycenter skew when preventing coil stock 100 from rotating promotes the stability of unreeling. The number of sets of fixed and

movable hinge flanges

42, 43 may also be adjusted, and one, three or more sets may be used as well.

More specifically, the cross frame 46 is disposed at one end of the rotating shaft 41 close to the second fixed beam 32, the centering rod 45 includes a cross rod 451 disposed along the axial direction of the rotating shaft 41, both ends of the cross rod 451 are connected with a first longitudinal rod 452 and a second longitudinal rod 453 slidably connected with the cross frame 46, the first longitudinal rod 452 is disposed at one end of the cross rod 451 close to the second fixed beam 32, the second longitudinal rod 453 is disposed at one end of the cross rod 451 close to the movable beam 33, and a centering stop rod 454 is coaxially disposed on the first longitudinal rod 452; the centering stop lever 454 has the foolproof effect, when inserting the material, the centering support 4 can be smoothly inserted into the center of the coil stock, one end of the coil stock touches the centering stop lever 454 and the explanation is completely inserted, and when producing, the centering stop lever 454 can prevent the coil stock from slipping off from the side surface to block the rotating shaft 41, so that the normal production is ensured.

The flexible shelves pole 455 of centering is received and is retracted in second vertical pole 453, guarantees from the center that centering support 4 can insert the coil stock smoothly, inserts the center of coil stock from centering support 4 after, will center flexible shelves pole 455 of centering and take out and fix from second vertical pole 453, can avoid the coil stock dead pivot 41 of card from the slippage of side, guarantees to produce normally going on.

More specifically, a centering telescopic blocking rod 455 is coaxially arranged on the second longitudinal rod 453; when inserting the material, in retracting into second vertical pole 453 centering flexible shelves pole 455, guarantee from centering support 4 can insert the center of coil stock smoothly, after inserting the center of coil stock from centering support 4, will centering flexible shelves pole 455 take out and fix from second vertical pole 453, can avoid the dead pivot 41 of coil stock slippage card, guarantee that production normally goes on.

More specifically, the transfer vehicle frame 1 is provided with a lifting device 6, the upright post 2 is internally sleeved with a sliding column 21, the first fixed beam 31, the second fixed beam 32 and the movable beam 33 are all arranged at the top end of the sliding column 21, and two ends of the lifting device 6 are respectively connected with the first fixed beam 31 and the transfer vehicle frame 1; the two lifting devices 6 respectively correspond to the two first fixed beams 31, the two first fixed beams 31 are synchronously driven to move up and down through the two lifting devices 6, and the first fixed beams 31 drive the second fixed beams 32 and the movable beams 33 to move up and down through the sliding columns 21, so that the self-centering support 4 is lifted. When the self-centering support 4 is used for inserting the coil stock, the stacked coil stock does not need to be moved down, the self-centering support 4 directly rises to the coil stock stacked at the height for feeding, and the feeding efficiency can be improved; the self-centering support 4 descends during coil stock transportation, and according to the feeding height adjustment of the hoop bending machine, the height floating of a reinforcing steel bar entering the straightening mechanism during unreeling can be reduced, the difficulty of coil stock straightening can be reduced, and therefore the generation quality is guaranteed. In this embodiment, the lifting device 6 is a hydraulic lifting device, and the lifting device 6 may also be a lifting motor.

More specifically, the movable beam 33 is provided with a locking pin 331 for locking the self-centering bracket 4, the rotating shaft 41 and the movable beam 33 are both provided with through holes, and the rotating shaft 41 can be locked by inserting the locking pin 331 into the rotating shaft 41 and the movable beam 33; simple structure, during the material loading, during the transportation, all can inject from centering support 4 rotation through the joint pin 331 when production is suspended, avoid the automatic unwrapping wire of coil stock.

More specifically, be equipped with foot-operated brake block on the universal wheel 11, after the blowing frame removed to the assigned position, the pedal was stepped on and the universal wheel 11 can be locked, guarantees that the pay off rack can not remove, can provide stable production condition.

The universal wheels 11 can be driven by a motor, a person or other equipment when the transfer vehicle frame 1 moves, and the labor intensity of workers can be reduced. Can also set up visual identification device in one side of pay off rack, visual identification device gathers from the reinforcing bar between centering support 4 and the hoop bending machine alignment mechanism and the contained angle of horizontal direction, when the contained angle is greater than the default, visual identification device feeds back information to elevating gear 6, elevating gear 6 adjusts from centering support 4's height according to contained angle information in production, thereby guarantee that the reinforcing bar gets into alignment mechanism with less floating all the time, can reduce the degree of difficulty that the coil stock was aligned, thereby promote and generate quality and efficiency.

The above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a pay off rack which characterized in that: including moving frame (1), the bottom surface that moves frame (1) is equipped with a plurality of universal wheels (11), moves the underrun of frame (1) and is connected with crossbeam (3) through stand (2), crossbeam (3) are including first fixed beam (31), the fixed beam of second (32) and walking beam (33), the both ends of the fixed beam of second (32) are connected perpendicularly with first fixed beam (31) of two parallel arrangement respectively, walking beam (33) and the fixed beam of second (32) parallel arrangement, the one end and the stand (2) of walking beam (33) are articulated, and the other end can be dismantled with adjacent stand (2) and be connected, all be equipped with bearing frame (34) on walking beam (33) and the fixed beam of second (32), two be equipped with between bearing frame (34) and be used for fixed coil stock from centering support (4).

2. The pay-off stand of claim 1, wherein: from pivot (41) between two bearing frames (34) of centering support (4) including locating, be equipped with fixed articulated flange (42) and activity articulated flange (43) on pivot (41), evenly be equipped with three at least group's pin joints on fixed articulated flange (42) and activity articulated flange (43) respectively, all handing-over has scissors fork (44) on every group pin joint, the other end of scissors fork (44) is connected with centering rod (45), the both ends of pivot (41) all are equipped with crossing frame (46) along its radial direction setting, the both ends of centering rod (45) respectively with two crossing frame (46) sliding connection, be equipped with in pivot (41) and be used for driving activity articulated flange (43) along pivot (41) axial direction reciprocating sliding's drive arrangement (5).

3. The pay-off stand of claim 2, wherein: scissors fork (44) include first tensioning pole (441) and second tensioning pole (442), the both ends of first tensioning pole (441) are articulated with fixed articulated flange (42) and centering rod (45) respectively, the one end and the activity of second tensioning pole (442) articulate flange (43), the other end and centering rod (45) sliding connection.

4. The pay-off stand of claim 2, wherein: the rotating shaft (41) is provided with a sliding groove (47) along the axial direction, and a driving block on the driving device (5) penetrates through the sliding groove (47) to be connected with the movable hinged flange (43).

5. The pay-off stand of claim 4, wherein: the fixed hinged flange (42) and the movable hinged flange (43) are respectively provided with another two, and a driving block on the driving device (5) is connected with the two movable hinged flanges (43) through a driving connecting rod (51).

6. The pay-off stand according to any one of claims 2 to 5, wherein: the one end that pivot (41) is close to second fixed beam (32) is located in crossbearer (46), centering rod (45) include horizontal pole (451) that set up along the axial direction of pivot (41), the both ends of horizontal pole (451) are connected with first vertical pole (452) and second vertical pole (453) with crossbearer (46) sliding connection, the one end that horizontal pole (451) is close to second fixed beam (32) is located in first vertical pole (452), the one end that horizontal pole (451) is close to walking beam (33) is located in second vertical pole (453), coaxial centering shelves pole (454) that are equipped with on first vertical pole (452).

7. The pay-off stand of claim 6, wherein: the second longitudinal rod (453) is coaxially provided with a centering telescopic stop rod (455).

8. The payoff stand of claims 1, 2, 3, 4, 5, or 7, wherein: move and be equipped with elevating gear (6) on frame (1), slip post (21) are equipped with to stand (2) endotheca, the top of slip post (21) is all located to first fixed beam (31), the fixed beam of second (32) and walking beam (33), first fixed beam (31) and move frame (1) are connected respectively at the both ends of elevating gear (6).

9. The pay-off stand of claim 8, wherein: and a locking pin (331) used for locking the self-centering bracket (4) is arranged on the movable beam (33).

10. The pay-off stand of claim 1, wherein: and a pedal brake pad is arranged on the universal wheel (11).