CN113275410B

CN113275410B - Unwinding device of zinc reinforcing bar is oozed to heat

Info

Publication number: CN113275410B
Application number: CN202110721109.4A
Authority: CN
Inventors: 李天增
Original assignee: Hangzhou Xiaoshan Zhongxu Meigu Cage Co ltd
Current assignee: Hangzhou Xiaoshan Zhongxu Meigu Cage Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-04-29
Anticipated expiration: 2041-06-28
Also published as: CN113275410A

Abstract

The application relates to the field of processing of beauty and firmness cages, in particular to an unwinding device for hot-dip galvanized steel bars, which comprises a base, a main shaft, a disc and a plurality of limiting rods, wherein the disc is provided with a plurality of chutes which are the same as the disc in the radius direction, and the lower ends of the limiting rods are embedded in the corresponding chutes in a sliding manner; the disc is provided with a first driving mechanism which drives the limiting rods to simultaneously open outwards or gather inwards; a plurality of mounting grooves are distributed on the limiting rod from top to bottom, and a pressing block and a first elastic piece for pushing part of the pressing block out of the mounting grooves are embedded in the mounting grooves; and a second driving mechanism which drives the limiting rod to move downwards when the limiting rod is abutted against the steel bar coil is further arranged on the disc. This scheme can not only come the reinforcing bar book of the different inner circle diameters of adaptation through the size that changes many gag lever posts and enclose into the circle, can also retrain the position that the reinforcing bar was rolled up simultaneously in horizontal direction and vertical direction, greatly reduced the reinforcing bar book at the probability that unreels the in-process and take place to rock, effectively ensured the normal of reinforcing bar book and unreeled.

Description

Unwinding device of zinc reinforcing bar is oozed to heat

Technical Field

The application relates to the field of processing of a beauty and firmness cage, in particular to an unwinding device for a hot-dip galvanized steel bar.

Background

The hot-dip galvanized steel bar is characterized by strong hardness, wear resistance and high bonding strength with base metal. Meshes in beauty cages are often spot welded with multiple criss-cross hot-dip galvanized steel bars.

The coiled hot-dip galvanized steel bar can be subjected to spot welding only after being uncoiled, straightened and cut. As shown in fig. 4, the unwinding device is shown in the figure, and includes a base 1, a main shaft 2 erected on the base 1, a disc 3 fixedly sleeved on a side wall of the main shaft 2 and used for supporting a reinforcing bar roll, and a plurality of limiting rods 4 erected on the disc 3 and used for limiting the sliding of the reinforcing bar roll. When the straightener straightens the steel bars, the steel bars on the disc 3 can be pulled out.

Although the unreeling device is simple in structure, the position of the limiting rods is fixed and unchangeable, so that the limiting rods can only realize limitation on the steel bar roll with a certain inner ring diameter, and when the limiting rods are not matched with the inner ring of the steel bar roll, the steel bar roll is easy to shake in the unreeling process, so that the normal unreeling of the steel bar roll is influenced.

Disclosure of Invention

In order to fix a position the reinforcing bar book better, reduce the reinforcing bar book and take place the probability of rocking unreeling the in-process, ensure normally unreeling of reinforcing bar book, this application provides a zinc reinforcing bar's unwinding device is oozed to heat.

The application provides a pair of unwinding device of zinc reinforcing bar is oozed to heat adopts following technical scheme:

the unwinding device for the hot-dip galvanized steel bars comprises a base, a main shaft erected on the base, a disc fixedly sleeved on the side wall of the main shaft, and a plurality of limiting rods circumferentially distributed on the disc, wherein a plurality of sliding grooves in the same direction as the radius direction of the disc are formed in the disc, the positions of the sliding grooves correspond to the positions of the limiting rods one by one, and sliding blocks connected with the lower ends of the limiting rods are embedded in the sliding grooves in a sliding manner; the disc is provided with a first driving mechanism which drives the plurality of sliding blocks to simultaneously open outwards or gather inwards; a plurality of mounting grooves are distributed on one side wall of the limiting rod, which is far away from the central axis of the disc, from top to bottom, and a pressing block and a first elastic piece for pushing part of the pressing block out of the mounting grooves are embedded in the mounting grooves; and a second driving mechanism which drives the limiting rod to move downwards when the limiting rod is abutted against the steel bar coil is further arranged on the disc.

Through adopting above-mentioned technical scheme, after the reinforcing bar was rolled up and is put on the disc, the workman let a plurality of sliders outwards open simultaneously through a actuating mechanism, and many gag levers will contradict the reinforcing bar and roll up and prop tight the reinforcing bar and roll up to the position of reinforcing bar book has been locked in the horizontal direction. In addition, contradict the reinforcing bar when the gag lever post and roll up the back, partial briquetting can be rolled up by the reinforcing bar and pushes up in the mounting groove, continues to outwards open and prepare to prop up when the reinforcing bar is rolled up when the gag lever post, and second actuating mechanism can drive the gag lever post downstream in step, then is closest to the reinforcing bar and rolls up and not pressed the briquetting of mounting groove and can push down the reinforcing bar and roll up to the position of reinforcing bar book has been locked in vertical direction. This scheme can not only come the reinforcing bar book of the different inner circle diameters of adaptation through the size that changes many gag lever posts and enclose into the circle, can also retrain the position that the reinforcing bar was rolled up simultaneously in horizontal direction and vertical direction, greatly reduced the reinforcing bar book at the probability that unreels the in-process and take place to rock, effectively ensured the normal of reinforcing bar book and unreeled.

Preferably, the second driving mechanism comprises a threaded rod which is rotatably connected to the sliding block and is vertically inserted into the lower end of the corresponding limiting rod, and the threaded rod can rotate relative to the limiting rod; the second driving mechanism further comprises a meshing component which is arranged on the limiting rod and enables the limiting rod to be meshed with the threaded rod when the limiting rod abuts against the steel bar coil tightly, and a rotating component which is arranged on the disc and is used for driving the threaded rod to rotate when the sliding block slides.

Through adopting above-mentioned technical scheme, when the gag lever post contradicts the reinforcing bar and rolls up, the meshing subassembly will let gag lever post and threaded rod realize screw-thread fit, along with the continuation removal of slider, the runner assembly can drive the threaded rod and take place rotatoryly, and under the restraint of spout lateral wall and the pulling of threaded rod, the gag lever post can the downstream, and the briquetting on the gag lever post just can push down the reinforcing bar and roll up to the position to the reinforcing bar is rolled up in vertical direction retrains. The second driving mechanism is ingenious in structural design, operation of workers is facilitated, and stability of the steel bar coil on the disc is improved.

Preferably, the meshing subassembly including set up on the gag lever post lateral wall and with the through-hole of threaded rod intercommunication, slip inlay the slide bar of establishing in the through-hole, set up the slide bar be close to threaded rod one end on and can with the meshing piece of threaded rod meshing, set up the second elastic component that is used for letting meshing piece and threaded rod separate in the through-hole to and set up and keep away from the contact plate that the threaded rod was served and is used for conflicting the reinforcing bar book at the slide bar.

Through adopting above-mentioned technical scheme, when the gag lever post is contradicted the reinforcing bar and is rolled up, the butt joint board will be contradicted the reinforcing bar simultaneously and roll up, along with the gag lever post continues outside removal, the butt joint board can order about slide bar compression second elastic component and retraction through-hole after the extrusion that the reinforcing bar was rolled up, meshing piece on the slide bar other end then can be more and more close to the threaded rod, meshing piece finally can imbed the thread groove of threaded rod in and with it screw-thread fit, gag lever post and threaded rod alright realized the meshing. The meshing component has ingenious structural design, can automatically complete the meshing between the limiting rod and the threaded rod, and brings convenience for the operation of workers.

Preferably, the rotating assembly comprises a rack fixedly connected to the inner side wall of the sliding groove and a second gear fixedly sleeved on the threaded rod and meshed with the rack.

Through adopting above-mentioned technical scheme, when the gag lever post takes place to remove along the spout, the rack just can order about second gear and threaded rod and take place rotatoryly, and rotating assembly's structural design is ingenious, has not only realized the autogiration of threaded rod, has still simplified the structure of device simultaneously, has practiced thrift the manufacturing cost of device.

Preferably, the first driving mechanism comprises a vertical connecting rod arranged on the lower surface of the sliding block, a rotary table which is rotatably connected to the lower surface of the rotary table and is coaxial with the rotary table, and a linkage groove which is formed in the rotary table, is used for embedding the connecting rod and can drive the connecting rod to slide along the length direction of the sliding groove, one end of the linkage groove is close to the circle center of the rotary table, the other end of the linkage groove is far away from the circle center of the rotary table, and the two ends of the linkage groove are not in the same radius direction of the rotary table; the first driving mechanism further comprises a driving part arranged on the disc and used for rotating the rotary disc.

Through adopting above-mentioned technical scheme, the workman rotates the carousel through initiative portion, and the linkage groove not only can be along with carousel synchronous revolution, still can order about connecting rod and slider and slide along the length direction who corresponds the spout, and under the synchronization action in many linkage grooves, many gag levers alright outwards open simultaneously or inwards gather together. The first driving mechanism is ingenious in structural design and high in operability, and workers can control the positions of the limiting rods simultaneously.

Preferably, the driving part comprises a gear ring fixedly sleeved on the circumferential wall of the turntable and coaxial with the turntable, a first gear rotatably connected to the disc and meshed with the gear ring, and a motor mounted on the disc and used for rotating the first gear.

Through adopting above-mentioned technical scheme, workman starter motor rotates first gear, and under the meshing effect of first gear and ring gear, the carousel alright emergence is rotatory. The driving part has simple structure and is very convenient to operate.

Preferably, the shape of the interlocking groove is circular arc.

By adopting the technical scheme, the arc-shaped linkage groove can reduce the probability that the connecting rod is clamped in the linkage groove, so that the connecting rod, the sliding block and the limiting rod can move more smoothly.

Preferably, the pressing block is provided with a guide inclined plane at one end far away from the first elastic part, and when the steel bar coil is placed on the disc from top to bottom, the steel bar coil can abut against the guide inclined plane and automatically press the pressing block into the mounting groove.

Through adopting above-mentioned technical scheme, when the reinforcing bar was rolled up top-down and was put on toward the gag lever post, the reinforcing bar was rolled up and can take the lead inclined plane conflict with the briquetting earlier, under the extrusion of reinforcing bar book and the direction on direction inclined plane, the briquetting can automatic compression first elastic component and retraction mounting groove in, the reinforcing bar is rolled up just can fall on the disc smoothly and not blocked by the briquetting, has highlighted structural design's reasonable, has made things convenient for the workman to lay the reinforcing bar and has rolled up.

Preferably, the upper end of the limiting rod is fixedly connected with a guide rod, and the upper end of the guide rod is obliquely arranged towards the central axis of the disc.

Through adopting above-mentioned technical scheme, the guide bar can be rolled up the reinforcing bar when the reinforcing bar is rolled up and play the guide effect to let the reinforcing bar roll up and to overlap smoothly on the gag lever post.

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

1. the arrangement of the sliding groove, the first driving mechanism, the mounting groove, the pressing block, the first elastic piece and the second driving mechanism reduces the possibility of shaking of the steel bar coil in the unreeling process and ensures the normal unreeling of the steel bar coil;

2. the arc-shaped linkage groove can enable the connecting rod, the sliding block and the limiting rod to move more smoothly;

3. the arrangement of the guide inclined plane can lead the reinforcing steel bar roll to smoothly fall on the disc without being clamped by the pressing block;

4. the guide rod can enable the reinforcing steel bar roll to be smoothly sleeved on the limiting rod.

Drawings

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

FIG. 2 is a schematic illustration in partial cross-sectional view of an embodiment of the present application;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

fig. 4 is an overall structural diagram of the related art.

Description of reference numerals: 1. a base; 2. a main shaft; 3. a disc; 4. a limiting rod; 5. a guide bar; 6. a chute; 7. a slider; 8. a turntable; 9. a linkage groove; 10. a connecting rod; 11. a toothed ring; 12. a first gear; 13. a motor; 14. mounting grooves; 15. briquetting; 16. a first elastic member; 17. a guide slope; 18. a threaded rod; 19. a through hole; 20. a slide bar; 21. an engagement block; 22. a second elastic member; 23. a butt joint plate; 24. a second gear; 25. a rack.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1, a unwinding device of zinc reinforcing bar is oozed to heat, including base 1, erect main shaft 2 on base 1, fixed cover is established and is used for supporting the disc 3 that the reinforcing bar was rolled up on 2 lateral walls of main shaft, and erect and supply four gag lever posts 4 that the reinforcing bar book cover was established on 3 upper surfaces of disc, four gag lever posts 4 equiangular interval distribution such as, on disc 3, and the equal fixedly connected with in upper end of every gag lever post 4 makes things convenient for the guide bar 5 that the reinforcing bar book cover was established, the upper end of guide bar 5 is the slope setting towards the axis of disc 3. When the straightener straightens the steel bar, the disc 3 rotates around the main shaft 2 and releases the steel bar continuously.

Referring to fig. 2, four sliding grooves 6 communicating the upper surface and the lower surface of the disc 3 are formed in the disc 3, the four sliding grooves 6 are distributed on the disc 3 at equal angular intervals, the positions of the four sliding grooves 6 correspond to the positions of the four limiting rods 4 one by one, and the length direction of the sliding grooves 6 is the same as the radius direction of the disc 3. A sliding block 7 connected with the lower end of the corresponding limiting rod 4 is embedded in each sliding groove 6 in a sliding mode, and the sliding direction of the sliding block 7 is the same as the length direction of the corresponding sliding groove 6. The lower surface of disc 3 rotates to inlay and is equipped with a circular shape carousel 8, and the axis of carousel 8 and the coincidence of the axis of disc 3. Four circular arc-shaped linkage grooves 9 are formed in the rotary table 8, the four linkage grooves 9 are distributed on the rotary table 8 at equal angular intervals, the positions of the four linkage grooves 9 correspond to the positions of the four sliders 7 one by one, one end of each linkage groove 9 is close to the circle center of the rotary table 8, the other end of each linkage groove 9 is far away from the circle center of the rotary table 8, and the two ends of each linkage groove 9 are not located in the same radius direction of the rotary table 8. The lower surfaces of the four sliding blocks 7 are fixedly connected with vertical connecting rods 10, and the lower ends of the connecting rods 10 are embedded into the corresponding linkage grooves 9 and can move relative to the linkage grooves 9. A coaxial gear ring 11 is fixedly sleeved on the peripheral wall of the rotary disc 8, a first gear 12 meshed with the gear ring 11 is rotatably connected to the disc 3, a motor 13 used for rotating the first gear 12 is further installed on the disc 3, the motor 13 is connected with a power supply through a wire, and the gear ring 11, the first gear 12 and the motor 13 form a driving part used for rotating the rotary disc 8; the connecting rod 10, the rotary table 8, the linkage groove 9 and the driving part form a first driving mechanism for driving the four sliding blocks 7 to simultaneously open outwards or gather inwards. After the reinforcing bar is rolled into the work and is sleeved outside the four limiting rods 4, a worker starts the motor 13 to rotate the first gear 12, under the linkage action of the first gear 12 and the toothed ring 11, the rotary disc 8 can rotate, the linkage groove 9 can synchronously rotate along with the rotary disc 8 and outwards push the corresponding connecting rods 10, the four connecting rods 10 can synchronously outwards open, the sliding block 7 and the limiting rods 4 can synchronously slide along with the corresponding connecting rods 10, the four limiting rods 4 can synchronously outwards open and tightly support the inner rings of the reinforcing bar roll, and therefore the position of the reinforcing bar roll is locked in the horizontal direction.

A plurality of rectangular mounting grooves 14 are formed in one side wall, far away from the central axis of the disc 3, of the limiting rod 4, and the mounting grooves 14 are distributed on the limiting rod 4 at equal intervals in the vertical direction. A pressing block 15 is embedded in the mounting groove 14 in a sliding manner, a first elastic piece 16 is further embedded in the mounting groove 14, the first elastic piece 16 is a spring, two ends of the first elastic piece 16 are fixedly connected to the bottom of the mounting groove 14 and the pressing block 15 respectively, and the first elastic piece 16 is used for ejecting part of the pressing block 15 out of the mounting groove 14. After the gag lever post 4 contradicted the reinforcing bar and rolled up, partial briquetting 15 can be rolled up by the reinforcing bar and crowded into corresponding mounting groove 14, and lie in the reinforcing bar and roll up the top and the briquetting 15 that is closest to the reinforcing bar book just can retrain the position that the reinforcing bar was rolled up in vertical direction to let the reinforcing bar book keep steadily releasing the in-process.

The end of the pressing block 15 extending out of the mounting groove 14 is provided with a guide inclined plane 17, and the guide inclined plane 17 is arranged on the upper side of the pressing block 15. When the reinforcing steel bar is rolled up from the top down and is sleeved on the limiting rod 4, the reinforcing steel bar roll can firstly abut against the guide inclined plane 17, the pressing block 15 can automatically compress the first elastic part 16 under the extrusion of the reinforcing steel bar roll and the guide of the guide inclined plane 17 and retract into the corresponding mounting groove 14, and the reinforcing steel bar roll can be smoothly placed on the disc 3 and cannot be clamped by the pressing block 15.

Referring to fig. 2 and 3, the upper surface of the sliding block 7 is rotatably connected with a vertical threaded rod 18, the upper end of the threaded rod 18 is inserted into the corresponding limiting rod 4, and the threaded rod 18 can rotate relative to the limiting rod 4. A through hole 19 communicated with the side wall of the threaded rod 18 is formed in one side wall, far away from the central axis of the disc 3, of the limiting rod 4, a horizontal sliding rod 20 is embedded in the through hole 19 in a sliding mode, one end, close to the threaded rod 18, of the sliding rod 20 is fixedly connected with an engagement block 21, the engagement block 21 can be inserted into a thread groove of the threaded rod 18 and is in thread fit with the thread groove, a second elastic piece 22 used for pushing the sliding rod 20 open to separate the engagement block 21 and the threaded rod 18 is further embedded in the through hole 19, and the second elastic piece 22 is also set to be a spring; the other end of the sliding rod 20 penetrates through the limiting rod 4 and is fixedly connected with a butting plate 23, and the butting plate 23 is used for butting against an inner ring of the steel bar roll. A second gear 24 coaxial with the same axis is fixedly sleeved on the side wall of the threaded rod 18, a rack 25 meshed with the second gear 24 is fixedly connected on one inner side wall of the sliding chute 6, the length direction of the rack 25 is the same as that of the sliding chute 6, and the rack 25 and the second gear 24 form a rotating assembly for driving the threaded rod 18 to rotate when the sliding block 7 slides; the through hole 19, the sliding rod 20, the engaging block 21, the second elastic element 22 and the abutting plate 23 form an engaging component for engaging the limiting rod 4 with the threaded rod 18 when the limiting rod 4 abuts against the steel bar coil; the threaded rod 18, the meshing component and the rotating component form a second driving mechanism which drives the limiting rod 4 to move downwards when the limiting rod 4 abuts against the steel bar coil. In the process that four limiting rods 4 are opened outwards, the abutting plate 23 can abut against the inner ring of the steel bar roll, along with the fact that the limiting rods 4 continue to move outwards, the abutting plate 23 can drive the sliding rod 20 to compress the second elastic piece 22, the meshing block 21 is inserted into the thread groove of the threaded rod 18, and the limiting rods 4 and the threaded rod 18 are in threaded fit. Simultaneously, gag lever post 4 is at the in-process that slides, and rack 25 can drive second gear 24 and threaded rod 18 and take place to rotate, and under the position constraint of threaded traction and spout 6, gag lever post 4 will move down, and briquetting 15 just can exert decurrent pressure to the reinforcing bar book to retrain the position of reinforcing bar book in vertical direction, further improved the stability of reinforcing bar book on disc 3.

The implementation principle of the embodiment is as follows: after the reinforcing bar is rolled into the work and is sleeved outside the four limiting rods 4, a worker starts the motor 13 to rotate the first gear 12, under the linkage action of the first gear 12 and the toothed ring 11, the rotary disc 8 can rotate, the linkage groove 9 can synchronously rotate along with the rotary disc 8 and outwards push the corresponding connecting rods 10, the four connecting rods 10 can synchronously outwards open, the sliding block 7 and the limiting rods 4 can synchronously slide along with the corresponding connecting rods 10, the four limiting rods 4 can synchronously outwards open and tightly support the inner rings of the reinforcing bar roll, and therefore the position of the reinforcing bar roll is locked in the horizontal direction. In the process that four limiting rods 4 are opened outwards, the abutting plate 23 can abut against the inner ring of the steel bar roll, along with the fact that the limiting rods 4 continue to move outwards, the abutting plate 23 can drive the sliding rod 20 to compress the second elastic piece 22, the meshing block 21 is inserted into the thread groove of the threaded rod 18, and the limiting rods 4 and the threaded rod 18 are in threaded fit. Simultaneously, gag lever post 4 is at the in-process that slides, and rack 25 can drive second gear 24 and threaded rod 18 and take place to rotate, and under the position constraint of threaded traction and spout 6, gag lever post 4 will move down, and briquetting 15 just can exert decurrent pressure to the reinforcing bar book to retrain the position of reinforcing bar book in vertical direction, further improved the stability of reinforcing bar book on disc 3.

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

Claims

1. The utility model provides an unwinding device of zinc reinforcing bar is oozed to heat, includes base (1), erects main shaft (2) on base (1), fixed cover establish disc (3) on main shaft (2) lateral wall to and many gag lever posts (4) of circumference distribution on disc (3), its characterized in that: a plurality of sliding grooves (6) which are the same as the disc (3) in the radius direction are formed in the disc (3), the positions of the sliding grooves (6) correspond to the positions of the limiting rods (4) one by one, and sliding blocks (7) connected with the lower ends of the limiting rods (4) are embedded in the sliding grooves (6) in a sliding mode; a first driving mechanism for driving the plurality of sliding blocks (7) to simultaneously open outwards or gather inwards is arranged on the disc (3); a plurality of mounting grooves (14) are distributed on one side wall of the limiting rod (4) far away from the central axis of the disc (3) from top to bottom, and a pressing block (15) and a first elastic piece (16) for ejecting part of the pressing block (15) out of the mounting grooves (14) are embedded in the mounting grooves (14); the disc (3) is also provided with a second driving mechanism which drives the limiting rod (4) to move downwards when the limiting rod (4) is abutted against the steel bar coil; the second driving mechanism comprises a threaded rod (18) which is rotatably connected to the sliding block (7) and is vertically inserted into the lower end of the corresponding limiting rod (4), and the threaded rod (18) can rotate relative to the limiting rod (4); the second driving mechanism further comprises an engaging component which is arranged on the limiting rod (4) and enables the limiting rod (4) and the threaded rod (18) to be engaged when the limiting rod (4) abuts against the steel bar coil tightly, and a rotating component which is arranged on the disc (3) and is used for driving the threaded rod (18) to rotate when the sliding block (7) slides.

2. The unwinding device of hot infiltration zinc reinforcing bar of claim 1, characterized in that: the meshing component comprises a through hole (19) which is formed in the side wall of the limiting rod (4) and communicated with a threaded rod (18), a sliding rod (20) which is arranged in the through hole (19) in a sliding and embedding manner, a meshing block (21) which is arranged on one end, close to the threaded rod (18), of the sliding rod (20) and can be meshed with the threaded rod (18), a second elastic piece (22) which is arranged in the through hole (19) and used for separating the meshing block (21) from the threaded rod (18), and a butting plate (23) which is arranged on one end, far away from the threaded rod (18), of the sliding rod (20 and used for butting against a steel bar roll.

3. The unwinding device of hot infiltration zinc reinforcing bar of claim 1, characterized in that: the rotating component comprises a rack (25) fixedly connected to the inner side wall of the sliding groove (6) and a second gear (24) fixedly sleeved on the threaded rod (18) and meshed with the rack (25).

4. The unwinding device of hot infiltration zinc reinforcing bar of claim 1, characterized in that: the first driving mechanism comprises a vertical connecting rod (10) arranged on the lower surface of the sliding block (7), a rotary disc (8) which is rotatably connected to the lower surface of the rotary disc (3) and is coaxial with the rotary disc (3), and a linkage groove (9) which is formed in the rotary disc (8) and is used for embedding the connecting rod (10) and can drive the connecting rod (10) to slide along the length direction of the sliding groove (6), one end of the linkage groove (9) is close to the circle center of the rotary disc (8), the other end of the linkage groove (9) is far away from the circle center of the rotary disc (8), and the two ends of the linkage groove (9) are not in the same radius direction of the rotary disc (8); the first drive mechanism further comprises a driving part arranged on the disc (3) for rotating the turntable (8).

5. The unwinding device of hot infiltration zinc reinforcing bar of claim 4, characterized in that: the driving part comprises a gear ring (11) which is fixedly sleeved on the peripheral wall of the turntable (8) and is coaxial with the turntable (8), a first gear (12) which is rotatably connected to the disc (3) and is meshed with the gear ring (11), and a motor (13) which is arranged on the disc (3) and is used for rotating the first gear (12).

6. The unwinding device of hot infiltration zinc reinforcing bar of claim 4, characterized in that: the linkage groove (9) is arc-shaped.

7. The unwinding device of hot infiltration zinc reinforcing bar of claim 1, characterized in that: the pressing block (15) is far away from one end of the first elastic piece (16) and is provided with a guide inclined plane (17), when the steel bar coil is placed on the disc (3) from top to bottom, the steel bar coil can abut against the guide inclined plane (17) and automatically press the pressing block (15) into the mounting groove (14).

8. The unwinding device of hot infiltration zinc reinforcing bar of claim 1, characterized in that: the upper end of gag lever post (4) has linked firmly guide bar (5), and the upper end of guide bar (5) is the slope setting towards the axis of disc (3).