CN112027744A

CN112027744A - Steel coil rolling and placing rack

Info

Publication number: CN112027744A
Application number: CN202010946327.3A
Authority: CN
Inventors: 张益明; 杨晓敏; 朱建海
Original assignee: Wenzhou Rizheng Metal Materials Co ltd
Current assignee: Wenzhou Rizheng Metal Materials Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2020-12-04
Anticipated expiration: 2040-09-10
Also published as: CN112027744B

Abstract

The application discloses a steel coil rolling and placing frame, which relates to the technical field of steel coil manufacturing and comprises a rolling device for rolling a steel strip and a placing device for placing the steel coil; the winding device comprises a winding rack, a winding mechanism and a lifting mechanism, wherein the winding mechanism is arranged on the winding rack and used for winding a steel belt, and the lifting mechanism is arranged on the winding rack and drives the winding mechanism to lift; the winding mechanism comprises a connecting plate which slides relative to the winding rack, and a connecting piece is arranged on the connecting plate; the placing device comprises a fixing frame, a plurality of placing layers arranged on the fixing frame and a grabbing mechanism which is arranged corresponding to the placing layers and used for collecting the steel coil on the winding mechanism; the placing layer comprises a placing bottom plate which is fixed with the fixing frame and used for placing a steel coil, and a matching component which is detachably connected and fixed with the connecting piece is arranged on the placing bottom plate. This application has semi-automatic transport coil of strip in order to reduce human cost's effect.

Description

Steel coil rolling and placing rack

Technical Field

The application relates to the technical field of steel coil manufacturing, in particular to a steel coil rolling and placing frame.

Background

After the steel coil is manufactured, the steel coil needs to be rolled and stored so as to be convenient for later extraction or packaging.

In the related art, there are a winding machine for winding the steel strip and a rack for storing the wound steel strip. But in actual working process, need have personnel to collect the coil of strip on the rolling machine and transport to the rack again after getting down, troublesome poeration and human cost are great.

Disclosure of Invention

In order to reduce the process of artifical transport coil of strip, this application provides a coil of strip rolling rack, has the effect of semi-automatic transport coil of strip in order to reduce the human cost.

The application provides a pair of coil of strip rolling rack adopts following technical scheme:

a steel coil winding and placing rack comprises a winding device for winding a steel coil and a placing device for placing the steel coil; the winding device comprises a winding rack, a winding mechanism and a lifting mechanism, wherein the winding mechanism is arranged on the winding rack and used for winding a steel belt, and the lifting mechanism is arranged on the winding rack and drives the winding mechanism to lift; the winding mechanism comprises a connecting plate which slides relative to the winding rack, and a connecting piece is arranged on the connecting plate; the placing device comprises a fixing frame, a plurality of placing layers arranged on the fixing frame and a grabbing mechanism which is arranged corresponding to the placing layers and used for collecting the steel coil on the winding mechanism; the placing layer comprises a placing bottom plate which is fixed with the fixing frame and used for placing a steel coil, and a matching component which is detachably connected and fixed with the connecting piece is arranged on the placing bottom plate.

Through adopting above-mentioned technical scheme, the bottom plate of placing on different layers of placing all can be connected the cooperation with the connecting piece, only need through elevating system alright realize reciprocating of winding mechanism to realize that same connecting piece is connected with the cooperation subassembly of co-altitude not. After the steel belt is coiled by the coiling mechanism, the steel coil on the coiling mechanism can be moved to the placing bottom plate by the grabbing mechanism, so that semi-automatic steel coil carrying can be realized as long as artificial control equipment works, the effects of saving time and labor are achieved, and the labor cost is reduced.

Preferably, one side of the connecting piece is provided with a concave groove, and the matching component comprises a spring and a clamping block; the placing bottom plate is provided with an insertion groove for inserting the connecting piece, a first sliding groove communicated with the insertion groove is formed in the placing bottom plate, the clamping block is connected in the first sliding groove in a sliding mode, one end of the spring is connected with the wall of the first sliding groove, and the other end of the spring is connected with the clamping block and drives the clamping block to move out of the first sliding groove; one end of the clamping block inserted into the insertion groove is an arc-shaped end.

Through adopting above-mentioned technical scheme, when being connected the connecting piece with the cooperation subassembly fixedly, only need insert the connecting piece to the insertion inslot, at this in-process, the joint piece earlier with the connecting piece butt and to removing in the first sliding tray, the compression of spring atress, until the connecting piece inserts completely to the first sliding tray in, the joint piece at this moment inserts to depressed groove department under the effort of spring, realizes that the connecting piece is fixed with being connected of cooperation subassembly. Because the one end that the joint piece inserted in the insertion groove is the arc end, when exerting great and moving outward to the insertion groove to the connecting piece, can extract the insertion groove with the connecting piece, realize connecting piece and cooperation subassembly can dismantle to be connected fixedly, after separating connecting piece and cooperation subassembly, can order about connecting piece and winding mechanism through elevating system again and reciprocate, the mechanism of snatching of co-altitude can snatch the coil of strip that is located the same height. In addition, the steel coil winding device also has the effects of positioning the connecting piece and placing the bottom plate, so that the relative position relation between the grabbing mechanism and the winding mechanism is limited, and the grabbing mechanism can grab the steel coil accurately.

Preferably, the lifting mechanism comprises a first screw rod and a first servo motor for driving the first screw rod to rotate; the first screw rod is rotatably connected to the rolling rack, the first screw rod is in threaded connection with the connecting plate, and two sides of the connecting plate are limited by the rolling rack and can only move up and down along the axis of the first screw rod; the machine body of the first servo motor is fixed with the winding rack.

Through adopting above-mentioned technical scheme, when reciprocating winding mechanism, need not to remove whole rolling frame, only need control first servo motor work can, have convenient operation's effect.

Preferably, the grabbing mechanism comprises a moving component and a grabbing component; the moving assembly comprises a sliding block, a second servo motor fixed on the placing bottom plate and a second screw rod fixed with an output shaft of the second servo motor; the placing bottom plate is provided with a sliding hole, the sliding block is positioned in the sliding hole and is in sliding connection with the placing bottom plate, and the second screw rod is in threaded connection with the sliding block and can drive the sliding block to move away from or close to the winding mechanism; the grabbing component comprises a first cylinder fixed on the sliding block, a rack fixed with a piston rod of the first cylinder, a gear rotationally connected with the sliding block and a clamping arm; the clamping arm corresponds to the gear and is fixedly connected with the gear; when the sliding block moves to the position closest to the winding mechanism, the two clamping arms are close to each other and can clamp the steel coil on the winding mechanism.

Through adopting above-mentioned technical scheme, the removal of the first cylinder work of control alright realization rack, the rotation of gear finally realizes the rotation of two centre gripping arms, and when two centre gripping arms were close to each other and rotate, can press from both sides tightly the coil of strip on the winding mechanism, then the work of drive second servo motor again realizes that the horizontal migration of coil of strip is in order to carry to placing the bottom plate on, has the effect of convenient control. It should be mentioned that different steel coils can be placed on the same placing bottom plate one by controlling the rotation of the second servo motor.

Preferably, the sliding block is provided with a middle hole, and the first cylinder, the rack and the gear are all positioned at the middle hole; the upper end of the sliding block is in contact with the inner wall of the upper end of the sliding hole, and the lower end of the sliding block is in contact with the inner wall of the lower end of the sliding hole.

Through adopting above-mentioned technical scheme, the sliding block of being convenient for is in the stable slip of sliding hole department.

Preferably, the ends of the two clamping arms far away from the gear are fixedly connected with extending rods close to each other.

Through adopting above-mentioned technical scheme, after two centre gripping arms held the coil of strip, the centre gripping arm removed to the direction of keeping away from winding mechanism, and at this in-process, two extension rods can contact with the lateral wall of coil of strip to be convenient for the holistic removal of coil of strip.

Preferably, the placing bottom plate is provided with a rotating groove communicated with the insertion groove, the placing bottom plate is rotatably hinged with a rotating piece, one end of the rotating piece is inserted into the insertion groove, the other end of the rotating piece is fixedly provided with an arc-shaped insertion block, and the connecting piece is provided with an identification groove for the arc-shaped insertion block to be inserted into; when the clamping block is completely inserted into the insertion groove, the clamping block is abutted against the rotating piece, so that the arc insertion block on the rotating piece is inserted into the identification groove, and the arc insertion block and part of the rotating piece are positioned outside the rotating groove; the rotating piece and the placing bottom plate are provided with a first torsion spring, and when the clamping block is not inserted into the insertion groove, the rotating piece rotates into the insertion groove and the rotating groove.

Through adopting above-mentioned technical scheme, personnel can insert the piece through observing the arc and insert whether insert to the sign inslot in order to judge whether the connecting piece targets in place with the installation of cooperation subassembly, improve the centre gripping accuracy of centre gripping arm to the coil of strip.

Preferably, it has the groove of stepping down to place to open on the bottom plate, it is connected with the bracing piece that is located the groove department of stepping down to rotate on the bottom plate to place, the bracing piece with place and be provided with the second torsional spring between the bottom plate, the second torsional spring orders about the bracing piece and rotates to the state of holding the bottom plate perpendicularly, and when the bracing piece rotates to the state of holding the bottom plate perpendicularly, the one end of keeping away from the second torsional spring on the bracing piece contacts with the lower tip of holding the bottom plate of last layer, the one end that is close to the second torsional spring on the bracing piece contacts with the cell wall contact in order to restrict the biggest rotation range.

Through adopting above-mentioned technical scheme, when the bracing piece only received the effort of second torsional spring, the bracing piece placed the bottom plate relatively and be 90 degrees settings, and the upper end and the lower extreme of bracing piece place the bottom plate contact with two respectively, play the effect that the bottom plate was placed in the support.

To sum up, this application can adjust the vertical height of winding mechanism through elevating system for the connecting piece can cooperate the cooperation subassembly of co-altitude not, and snatch the mechanism and can remove the coil of strip on the winding mechanism on the same height to the corresponding bottom plate of placing, realized the purpose of semi-automatization transport coil of strip, have the effect that improves work efficiency and reduction human cost.

Drawings

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

FIG. 2 is a schematic sectional view of a partial structure of an embodiment of the present application;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a schematic structural view of a grasping mechanism in the embodiment of the present application;

FIG. 5 is a schematic structural view of a grasping element in an embodiment of the present application;

FIG. 6 is a sectional view of the second torsion spring according to the embodiment of the present application.

Reference numerals: 1. a winding device; 2. a placement device; 3. a rolling frame; 4. a winding mechanism; 5. a lifting mechanism; 6. a fixed mount; 7. placing the layer; 8. a grabbing mechanism; 9. a connecting plate; 10. a winding motor; 11. winding the rod; 12. a first lead screw; 13. a first servo motor; 15. a connecting member; 16. placing a bottom plate; 17. a mating component; 18. a recessed groove; 19. a spring; 20. a clamping block; 21. inserting the groove; 22. a first sliding groove; 23. a rotating groove; 24. a rotating member; 25. an arc-shaped insertion block; 26. marking a slot; 27. a first torsion spring; 28. a moving assembly; 29. a grasping assembly; 30. a slider; 31. a second servo motor; 32. a second lead screw; 33. a slide hole; 34. a first cylinder; 35. a rack; 36. a gear; 37. a clamp arm; 38. a middle hole; 39. an extension rod; 40. a yielding groove; 41. a support bar; 42. a second torsion spring.

Detailed Description

The embodiment of the application discloses coil of strip rolling rack, refer to fig. 1, fig. 2, including the coiling mechanism 1 that is used for coiling the steel band and the placer 2 that is used for placing the coil of strip. The winding device 1 comprises a winding frame 3, a winding mechanism 4 arranged on the winding frame 3 and used for winding a steel strip, and a lifting mechanism 5 arranged on the winding frame 3 and used for driving the winding mechanism 4 to lift. The placing device 2 comprises a fixing frame 6, a plurality of placing layers 7 arranged on the fixing frame 6 and a grabbing mechanism 8 which is arranged corresponding to the placing layers 7 and used for collecting steel coils on the winding mechanism 4. Up-down movement of the winding mechanism 4 can be realized through the lifting mechanism 5, so that the winding mechanism 4 is correspondingly provided with the placing layers 7 with different heights. Winding mechanism 4 is the coil of strip back with the steel band rolling, snatchs mechanism 8 and can remove the coil of strip on the winding mechanism 4 to placing layer 7 on, as long as artificial controlgear work, alright realize semi-automatic transport coil of strip, play the effect of labour saving and time saving, reduce the human cost.

Referring to fig. 1 and 2, the winding mechanism 4 further includes a connecting plate 9 that slides in a vertical direction with respect to the winding frame 3, a winding motor 10, and a winding rod 11. The winding rod 11 is rotatably connected to the connecting plate 9, the winding motor 10 is fixed to the connecting plate 9, the output shaft of the winding motor 10 is fixedly connected with the winding rod 11 relatively, and when the winding motor 10 works, the winding rod 11 rotates and collects steel coils. The lifting mechanism 5 comprises a first screw rod 12 and a first servo motor 13 for driving the first screw rod 12 to rotate. The first screw rod 12 is rotatably connected to the winding rack 3, the first screw rod 12 is in threaded connection with the connecting plate 9, the two sides of the connecting plate 9 are limited by the winding rack 3 and can only move up and down along the axis of the first screw rod 12, and the body of the first servo motor 13 is fixed with the winding rack 3. The first servo motor 13 can realize the rotation of the first screw rod 12, so that the up-and-down movement of the connecting plate 9 is realized, and the up-and-down movement of the winding mechanism 4 is finally realized. When reciprocating winding mechanism 4, need not to remove whole rolling frame 3, only need control first servo motor 13 work can, have convenient operation's effect.

Referring to fig. 1 and 3, a connecting member 15 is fixedly provided on the connecting plate 9. The placing layer 7 comprises a placing bottom plate 16 which is fixed with the fixing frame 6 and used for placing a steel coil, and a matching component 17 which is detachably connected and fixed with the connecting piece 15 is arranged on the placing bottom plate 16.

Referring to fig. 3, a concave groove 18 is formed at one side of the connection member 15. The mating assembly 17 includes a spring 19 and a snap block 20. The placing bottom plate 16 is provided with an insertion groove 21 for inserting the connecting piece 15, the placing bottom plate 16 is internally provided with a first sliding groove 22 communicated with the insertion groove 21, the clamping block 20 is connected in the first sliding groove 22 in a sliding manner, one end of the spring 19 is fixedly connected with the groove wall of the first sliding groove 22, and the other end of the spring 19 is fixedly connected with the clamping block 20 and drives the clamping block 20 to move towards the outside of the first sliding groove 22. When the connecting piece 15 is connected and fixed with the matching component 17, only the connecting piece 15 needs to be inserted into the insertion groove 21, in the process, the clamping block 20 is abutted to the connecting piece 15 and moves towards the first sliding groove 22, the spring 19 is stressed and compressed until the connecting piece 15 is completely inserted into the first sliding groove 22, the clamping block 20 at the moment is inserted into the concave groove 18 under the action force of the spring 19, and the connecting piece 15 and the matching component 17 are connected and fixed. The one end that joint piece 20 inserted in the insertion groove 21 is the arc end, and when applying great and moving outside insertion groove 21 to connecting piece 15, can extract insertion groove 21 with connecting piece 15, realize connecting piece 15 and cooperation subassembly 17 dismantled to be connected fixedly, after separating connecting piece 15 and cooperation subassembly 17, can order about connecting piece 15 and winding mechanism 4 through elevating system 5 again and reciprocate, and the not high mechanism 8 that snatchs can snatch the coil of strip that is located the same height. In addition, the effect of positioning the connecting piece 15 and placing the bottom plate 16 is achieved, so that the relative position relationship between the grabbing mechanism 8 and the rolling mechanism 4 is limited, and the grabbing mechanism 8 can grab the steel coil accurately.

Referring to fig. 2 and 3, a rotating groove 23 communicated with the insertion groove 21 is formed on the placing bottom plate 16, a rotating member 24 is rotatably hinged on the placing bottom plate 16, one end of the rotating member 24 is inserted into the insertion groove 21, an arc insertion block 25 is fixed at the other end of the rotating member 24, and an identification groove 26 for inserting the arc insertion block 25 is formed on the connecting member 15; when the clamping block 20 is completely inserted into the insertion groove 21, the clamping block 20 abuts against the rotating piece 24 and enables the arc insertion block 25 on the rotating piece 24 to be inserted into the identification groove 26, and the arc insertion block 25 and part of the rotating piece 24 at the moment are located outside the rotating groove 23. A first torsion spring 27 is provided between the rotation piece 24 and the placing bottom plate 16, and when the catching block 20 is not inserted into the insertion groove 21, the rotation piece 24 is rotated into the insertion groove 21 and the rotation groove 23 by the urging force of the first torsion spring 27. Personnel can judge whether the connecting piece 15 is installed in place with the matching component 17 by observing whether the arc-shaped inserting block 25 is inserted into the identification groove 26 or not, and the clamping accuracy of the clamping arm 37 on the steel coil is improved.

Referring to fig. 2 and 4, the grasping mechanism 8 includes a moving assembly 28 and a grasping assembly 29. The moving assembly 28 includes a sliding block 30, a second servo motor 31 fixed on the placing base plate 16, and a second screw rod 32 fixed with an output shaft of the second servo motor 31. The placing bottom plate 16 is provided with a sliding hole 33, the sliding block 30 is positioned in the sliding hole 33 and is slidably connected with the placing bottom plate 16, and the upper end and the lower end of the sliding block 30 are in contact with the upper hole wall and the lower hole wall of the sliding hole 33, so that the sliding block 30 can stably slide in the sliding hole 33. The second screw rod 32 is rotatably connected with the placing bottom plate 16, and the second screw rod 32 is in threaded connection with the sliding block 30 and can drive the sliding block 30 to move away from or close to the winding mechanism 4 through rotation.

Referring to fig. 4 and 5, the grasping assembly 29 includes a first cylinder 34 fixed to the slide block 30, a rack 35 fixed to a piston rod of the first cylinder 34, a gear 36 rotatably connected to the slide block 30, and a holding arm 37. Two gears 36 are arranged, the two gears 36 are respectively positioned at two sides of the rack 35 and meshed with the rack 35, and the clamping arm 37 corresponds to and is fixedly connected with the gears 36.

Referring to fig. 2 and 4, when the slide block 30 moves to be closest to the winding mechanism 4, the two holding arms 37 approach each other to hold the steel coil on the winding mechanism 4. The sliding block 30 is provided with a middle hole 38, and the first cylinder 34, the rack 35 and the gear 36 are all positioned at the middle hole 38. The movement of the rack 35 can be realized by controlling the first air cylinder 34 to work, the rotation of the gear 36 finally realizes the rotation of the two clamping arms 37, when the two clamping arms 37 are close to each other and rotate, the steel coil on the winding mechanism 4 can be clamped, then the second servo motor 31 is driven to work, the horizontal movement of the steel coil is realized to be carried to the placing bottom plate 16, and the effect of convenient control is achieved. It should be mentioned that different steel coils can be placed on the same placing bottom plate 16 one by controlling the rotation of the second servo motor 31.

Referring to fig. 2 and 4, the two holding arms 37 are far away from the end of the gear 36 and are fixedly connected with the extending rods 39 close to each other, and after the steel coil is held by the two holding arms 37, the holding arms 37 move in the direction far away from the winding mechanism 4, and in the process, the two extending rods 39 contact with the side wall of the steel coil so as to facilitate the overall movement of the steel coil.

Referring to fig. 1 and 6, a yielding groove 40 is formed in the placing bottom plate 16, a supporting rod 41 located at the yielding groove 40 is rotatably connected to the placing bottom plate 16, a second torsion spring 42 is arranged between the supporting rod 41 and the placing bottom plate 16, the second torsion spring 42 drives the supporting rod 41 to rotate to a state perpendicular to the placing bottom plate 16, when the supporting rod 41 rotates to a state perpendicular to the placing bottom plate 16, one end of the supporting rod 41 far away from the second torsion spring 42 contacts with the lower end of the placing bottom plate 16 on the upper layer, and one end of the supporting rod 41 close to the second torsion spring 42 contacts with the groove wall of the yielding groove 40 to limit the maximum rotation range of the supporting rod 41. When the supporting rod 41 is only acted by the second torsion spring 42, the supporting rod 41 is vertically arranged at 90 degrees relative to the placing bottom plates 16, and the upper end and the lower end of the supporting rod 41 are respectively contacted with the two placing bottom plates 16, so as to support the placing bottom plates 16.

The concrete working condition effects are as follows:

realize moving up and down of winding mechanism 4 through elevating system 5 earlier for winding mechanism 4 removes to the layer 7 of placing of corresponding height, then makes connecting piece 15 insert to insertion groove 21 through removing coiling mechanism 1, inserts to the depressed groove 18 until joint piece 20 in, and the arc inserts piece 25 and inserts to sign groove 26 in, realizes the location fit of coiling mechanism 1 and placer 2. It should be mentioned that a lockable universal wheel (not shown) may be provided at the bottom of the winding frame 3 to save man power when the winding device 1 needs to be moved. First cylinder 34 work and make two centre gripping arms 37 open, and second servo motor 31 work makes two centre gripping arms 37 remove to winding mechanism 4 department, and first cylinder 34 work once more makes two centre gripping arms 37 be close to each other and clip the coil of strip, and second servo motor 31 work makes two centre gripping arms 37 take and move to placing layer 7 with the coil of strip at last, realizes once snatching the arrangement. By repeating the above operations, the holding arm 37 can hold the steel coil and then place the steel coil by controlling the rotation amount of the second servo motor 31, and different steel coils can be placed on the same placing base plate 16 one by one. This application adopts semi-automatization to realize carrying the coil of strip, has the effect that reduces the human cost.

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. A steel coil winding and placing rack comprises a winding device (1) for winding a steel coil and a placing device (2) for placing the steel coil; the method is characterized in that: the winding device (1) comprises a winding rack (3), a winding mechanism (4) which is arranged on the winding rack (3) and used for winding the steel strip, and a lifting mechanism (5) which is arranged on the winding rack (3) and drives the winding mechanism (4) to lift; the winding mechanism (4) comprises a connecting plate (9) which slides relative to the winding rack (3), and a connecting piece (15) is arranged on the connecting plate (9); the placing device (2) comprises a fixing frame (6), a plurality of placing layers (7) arranged on the fixing frame (6) and a grabbing mechanism (8) which is arranged corresponding to the placing layers (7) and used for collecting the steel coil on the winding mechanism (4); the placing layer (7) comprises a placing bottom plate (16) which is fixed with the fixing frame (6) and used for placing a steel coil, and a matching component (17) which is detachably connected and fixed with the connecting piece (15) is arranged on the placing bottom plate (16).

2. The steel coil rolling and placing rack according to claim 1, characterized in that: one side of the connecting piece (15) is provided with a concave groove (18), and the matching component (17) comprises a spring (19) and a clamping block (20); an insertion groove (21) for inserting the connecting piece (15) is formed in the placing bottom plate (16), a first sliding groove (22) communicated with the insertion groove (21) is formed in the placing bottom plate (16), the clamping block (20) is connected in the first sliding groove (22) in a sliding mode, one end of the spring (19) is connected with the wall of the first sliding groove (22), the other end of the spring (19) is connected with the clamping block (20) and drives the clamping block (20) to move towards the outside of the first sliding groove (22); one end of the clamping block (20) inserted into the insertion groove (21) is an arc-shaped end.

3. The steel coil rolling and placing rack according to claim 2, characterized in that: the lifting mechanism (5) comprises a first screw rod (12) and a first servo motor (13) for driving the first screw rod (12) to rotate; the first screw rod (12) is rotatably connected to the winding rack (3), the first screw rod (12) is in threaded connection with the connecting plate (9), and two connecting plates (9) are limited by the winding rack (3) and can only move up and down along the axis of the first screw rod (12); the machine body of the first servo motor (13) is fixed with the winding rack (3).

4. The steel coil rolling and placing rack according to claim 2, characterized in that: the grabbing mechanism (8) comprises a moving assembly (28) and a grabbing assembly (29); the moving assembly (28) comprises a sliding block (30), a second servo motor (31) fixed on the placing bottom plate (16) and a second screw rod (32) fixed with an output shaft of the second servo motor (31); the placing bottom plate (16) is provided with a sliding hole (33), the sliding block (30) is positioned in the sliding hole (33) and is in sliding connection with the placing bottom plate (16), and the second screw rod (32) is in threaded connection with the sliding block (30) and can drive the sliding block (30) to be far away from or close to the winding mechanism (4); the grabbing component (29) comprises a first air cylinder (34) fixed on the sliding block (30), a rack (35) fixed with a piston rod of the first air cylinder (34), a gear (36) rotationally connected with the sliding block (30) and a clamping arm (37); the number of the gears (36) is at least two, the two gears (36) are respectively positioned on two sides of the rack (35) and meshed with the rack (35), and the clamping arms (37) correspond to and are fixedly connected with the gears (36); when the sliding block (30) moves to be closest to the winding mechanism (4), the two clamping arms (37) are close to each other and can clamp the steel coil on the winding mechanism (4).

5. The steel coil rolling and placing rack according to claim 4, characterized in that: the sliding block (30) is provided with a middle hole (38), and the first air cylinder (34), the rack (35) and the gear (36) are all positioned at the middle hole (38); the upper end inner wall contact of sliding block (30) upper end and sliding hole (33), the lower extreme inner wall contact of sliding block (30) lower extreme and sliding hole (33).

6. The steel coil rolling and placing rack according to claim 4, characterized in that: one ends of the two clamping arms (37) far away from the gear (36) are fixedly connected with extension rods (39) which are close to each other.

7. The steel coil rolling and placing rack according to claim 4, characterized in that: the placing bottom plate (16) is provided with a rotating groove (23) communicated with the insertion groove (21), the placing bottom plate (16) is rotatably hinged with a rotating piece (24), one end of the rotating piece (24) is inserted into the insertion groove (21), the other end of the rotating piece (24) is fixedly provided with an arc-shaped insertion block (25), and the connecting piece (15) is provided with an identification groove (26) for the arc-shaped insertion block (25) to be inserted into; when the clamping block (20) is completely inserted into the insertion groove (21), the clamping block (20) is abutted to the rotating piece (24) and enables the arc-shaped insertion block (25) on the rotating piece (24) to be inserted into the identification groove (26), and the arc-shaped insertion block (25) and part of the rotating piece (24) are positioned outside the rotating groove (23); a first torsion spring (27) is arranged between the rotating piece (24) and the placing bottom plate (16), and when the clamping block (20) is not inserted into the insertion groove (21), the rotating piece (24) rotates into the insertion groove (21) and the rotating groove (23).

8. The steel coil rolling and placing rack according to claim 4, characterized in that: it has the groove of stepping down (40) to place to open on bottom plate (16), it is connected with bracing piece (41) that are located groove of stepping down (40) department to place to rotate on bottom plate (16), bracing piece (41) and place and be provided with second torsional spring (42) between bottom plate (16), second torsional spring (42) orders about bracing piece (41) and rotates to the state of hanging down on placing bottom plate (16), and when bracing piece (41) rotate to the state of hanging down on placing bottom plate (16), the one end of keeping away from second torsional spring (42) on bracing piece (41) contacts with the lower tip of placing bottom plate (16) of last layer, the one end that is close to second torsional spring (42) on bracing piece (41) contacts with the cell wall of the groove of stepping down (40) in order to limit bracing piece (41) maximum rotation range.