Iron wire preparation process and equipment

Abstract

The invention relates to an iron wire preparation process and equipment. The equipment comprises a pickling assembly, a crown block, a hoisting assembly and a transportation assembly. An automatic production system is formed by the crown block, the transportation assembly and the hoisting assembly, linkage is achieved through the inductor in the pickling pool and the pickling assembly, tedious manual operation in an existing pickling process is simplified into installation of wires and hooks, and automatic control over wire transportation, wire hoisting of the crown block and liquid supplementing of the pickling pool is achieved; therefore, intelligent and automatic production of the iron wires in the pickling process is achieved, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wire production, and more specifically, it relates to a wire preparation process and equipment. Background Art

[0002] Wire is a basic metal product, which has the characteristics of high strength, low cost, easy processing, etc., and is widely used in many fields such as industry, agriculture, construction, and daily life. For example, it can be used for steel bar binding and tying, or as a wire rope core material or made into chains, sieves, etc.

[0003] The production process of wire generally includes pickling treatment, wire drawing, heat treatment, surface treatment, and cooling and coiling steps. Pickling is a key pretreatment step, which can remove oil stains, dust, impurities, and oxide layers on the surface of the wire, facilitating subsequent process treatment. In the existing wire preparation process, the degree of automation of the pickling process is low. Since operations such as acid liquid agents and the lifting of heavy wire rod in the pickling process still require manual control, the safety risk is relatively high. Especially before lifting the wire rod into the pickling tank, the wire rod needs to be loaded into a specific tool first, and then the wire rod is lifted by a crane. Due to the limitation of the crane position, the wire rod can generally be installed only in front of the pickling tank, and then the hook of the crane is manually connected to the tool containing the wire rod. Obviously, there is a relatively high safety risk. Based on this, the present invention proposes a wire preparation process and equipment to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a wire preparation process and equipment. The crane, transportation component, and lifting component form an automated production system. Through the linkage between the inductor in the pickling tank and the pickling component, the cumbersome manual operations in the existing pickling process are simplified to the installation of the wire rod and the hook. The transportation of the wire rod, the lifting of the wire rod by the crane, and the replenishment of the pickling tank are realized through automated control, thereby realizing the intelligent and automated production of wire rod in the pickling process and effectively improving the production efficiency.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: An equipment for wire preparation, comprising a pickling component, a crane, a lifting component, and a transportation component; The pickling component includes a pickling tank, and an inductor is arranged in the pickling tank; The lifting component includes a bracket, a hook, and a connecting rod. The hook is arranged inside the bracket, and the connecting rod is arranged on the hook; Among them, the hook includes an integrally formed upper cross bar, a lower cross bar and a vertical bar. The vertical bar is located on one side of the upper cross bar and the lower cross bar. The top end of the vertical bar is connected to one end of the upper cross bar, and the bottom end of the vertical bar is connected to one end of the lower cross bar. An outer limit protrusion is provided at the other end of the lower cross bar to prevent the wire from slipping off the lower cross bar. Among them, the bracket includes side support rods and a bottom plate. Vertical side support rods are respectively provided on both sides of the bottom plate. A docking port is provided at the top of the side support rods. The end of the upper cross bar of the hook is embedded into the docking port at the top of the side support rod on the same side from top to bottom. Among them, the connecting rod is arranged at the middle position of the top surface of the upper cross bar. The connecting rod is parallel to the upper cross bar. Oblique rods are respectively provided at both ends of the connecting rod. The top end of the oblique rod is connected to the end of the connecting rod. The included angle between the oblique rod and the connecting rod is an obtuse angle. The bottom end of the oblique rod is connected to the top surface of the upper cross bar. The included angle between the oblique rod and the upper cross bar is an acute angle. The overhead crane is arranged directly above the pickling tank. The number of hooks of the overhead crane is two. A fixing rod is arranged between the two hooks. The distance between the two hooks is the same as the length of the connecting rod above the hook. The transportation component includes a track and a transportation trolley. The track is arranged in front of the pickling tank. The transportation trolley moves along the track. A proximity sensor is arranged on the side of the transportation trolley facing the pickling tank. A detection piece cooperating with the proximity sensor is arranged on the side of the pickling tank facing the track. The bracket is placed on the transportation trolley.

[0006] In one embodiment, two weight sensors are arranged on the transportation trolley, and the two weight sensors are respectively arranged below both sides of the bottom surface of the bracket bottom plate.

[0007] In one embodiment, the track is a track connected end to end.

[0008] In one embodiment, the number of overhead cranes is two, which are respectively used to control the wire entering the pickling tank and the wire leaving the pickling tank.

[0009] In one embodiment, the pickling component further includes an acid liquid automatic compensation device. The acid liquid automatic compensation device includes a main storage tank, a weighing platform, a main chemical pump, a spare storage tank, a spare chemical pump and a controller. The main storage tank is connected to the acid liquid detection component of the storage tank. The main storage tank is connected to the pickling tank through the main chemical pump. The spare storage tank is connected to the pickling tank through the spare chemical pump. The main storage tank is placed on the weighing platform. The remaining acid liquid volume is intuitively judged by detecting the weight reduction of the main storage tank. The inductor, the weighing platform, the main chemical pump and the spare chemical pump are all connected to the controller.

[0010] In one embodiment, the number of main storage tanks is two, the number of weighing platforms is the same as that of the main storage tanks, and each main storage tank is connected to a weighing platform.

[0011] In one embodiment, an auxiliary chemical pump is provided between the main storage tank and the standby storage tank. The main storage tank and the standby storage tank are connected through the auxiliary chemical pump, and the controller is connected to the auxiliary chemical pump.

[0012] A process for preparing iron wire is as follows: S1. Load the wire material of the iron wire into the hook, and place the hook on the bracket for standby; S2. Place the bracket with the hook on the transport trolley, and adjust the position of the bracket on the transport trolley so that the two weight sensors of the transport trolley can detect the weight data of the bracket, the hook and the wire material; S3. Repeat steps S1 and S2, and there are multiple transport trolleys with hooks and wire materials on the track at the same time; S4. Multiple transport trolleys move along the track towards the pickling tank. When the first transport trolley reaches directly in front of the pickling tank, all the transport trolleys behind the first transport trolley stop; S5. The overhead crane moves directly above the transport trolley in front of the pickling tank. Subsequently, the two lifting hooks descend synchronously, connect to the connecting rod above the hook, and then the overhead crane lifts the hook; During the process of lifting the hook, when the change situations of the two weight sensors of the transport trolley are the same, it is judged that the overhead crane hook is stably connected to the hook; when the change situations of the two weight sensors of the transport trolley are different, it is judged that the overhead crane hook is not stably connected to the hook, and the overhead crane readjusts its position until the hook is stably connected to the hook; S6. When the sensor in the pickling tank detects that the wire material enters, the acid liquid is automatically replenished into the pickling tank, and the wire material is pickled. At the same time, the transport trolley in front of the pickling tank continues to move along the track and leaves the pickling tank, and the transport trolley behind continues to move forward until a new transport trolley moves in front of the pickling tank; S7. When the wire material in the pickling tank is pickled, the overhead crane lifts the hook and the wire material out of the pickling tank; S8. Repeat steps S4 - S7. Among them, when the pickling tank is in a state of being full of wire materials in step S6, the overhead crane stops lifting the wire materials into the pickling tank, and after completing step S7, repeat steps S4 - S7; S9. The pickled wire materials enter the subsequent wire drawing, heat treatment, surface treatment and cooling coiling processes in sequence to make iron wire products.

[0013] In summary, the present invention has the following beneficial effects: The overhead crane, transportation component and lifting component of the present invention form an automated production system, which realizes linkage with the pickling component through the inductor in the pickling tank, simplifies the cumbersome manual operations in the existing pickling process to the installation of wire and hook, and realizes automatic control of the transportation of wire, the overhead crane lifting the wire and the replenishment of the pickling tank, thereby realizing the intelligent and automated production of wire rod in the pickling process and effectively improving the production efficiency. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the lifting component and the transportation trolley of the present invention; Figure 2 It is a schematic diagram of the positional relationship between the pickling tank and the transportation component of the present invention; Figure 3 It is a schematic diagram of the pickling component of the present invention.

[0015] In the figure: 1, hook; 2, upper cross bar; 3, lower cross bar; 4, vertical bar; 5, bracket; 6, side support bar; 7, bottom plate; 8, docking port; 9, connecting rod; 10, diagonal bar; 11, lifting hook; 12, transportation trolley; 13, weight sensor; 14, pickling tank; 15, track; 16, proximity sensor; 17, detection piece; 18, induction component; 19, weighing platform; 20, main storage tank; 21, main chemical pump; 22, standby storage tank; 23, standby chemical pump; 24, controller; 25, auxiliary chemical pump. Detailed Embodiments

[0016] The present invention will be described in detail below with reference to the drawings and embodiments.

[0017] It should be noted that the orientation terms such as "upper" and "lower" involved in this article are determined relative to the perspective of the drawings, and are only for the convenience of description and cannot be construed as a limitation to the technical solution.

[0018] As Figures 1 - 3 shown, the present invention provides a device for preparing wire rod, including a pickling component, an overhead crane, a lifting component and a transportation component. The lifting component is connected to the wire rod, the lifting component and the wire rod are on the transportation component, and are sent to the front of the pickling component by the transportation component. The overhead crane is connected to the lifting component and lifts the wire rod into the pickling component.

[0019] The pickling component includes a pickling tank 14. The wire rod enters the pickling tank 14 for pickling. The pickling tank 14 is provided with an inductor for detecting whether the lifting component sends the wire rod into the pickling tank 14.

[0020] The pickling component further includes an acid solution automatic compensation device. The acid solution automatic compensation device includes a main storage tank 20, a weighing platform 19, a main chemical pump 21, a spare storage tank 22, a spare chemical pump 23, and a controller 24. The main storage tank 20 is connected to the acid solution detection component of the storage tank. The main storage tank 20 is connected to the pickling tank 14 through the main chemical pump 21. The spare storage tank 22 is connected to the pickling tank 14 through the spare chemical pump 23. The main storage tank 20 is placed on the weighing platform 19, and the remaining acid solution volume is visually judged by detecting the weight reduction of the main storage tank 20. The inductor, the weighing platform 19, the main chemical pump 21, and the spare chemical pump 23 are all connected to the controller 24, and the controller 24 is an existing PLC controller 24.

[0021] The acid solution is in a flowing state in the pickling tank 14. When the wire rod stays in the pickling tank 14, the acid solution will be consumed. It is easy to understand that when the wire rod enters the pickling tank 14, acid solution needs to be replenished into the pickling tank 14. Preferably, the inductor is a photoelectric inductor.

[0022] After the controller 24 receives the signal from the inductor, the main chemical pump 21 is started to pump the acid solution in the main storage tank 20 into the pickling tank 14. The pumping volume is controlled by setting the working time of the main chemical pump 21. During this process, the weighing platform 19 continuously detects the reduction of the acid solution in the main storage tank 20. When it is detected that the remaining acid solution in the main storage tank 20 is not enough to meet the next pumping volume, the main chemical pump 21 stops, and the spare chemical pump 23 is put into use. At the same time, an alarm is issued to remind to replace the main storage tank 20 in time.

[0023] It is easy to understand that under the condition of the same storage tank specifications, the mass of the acid solution when the storage tank is full is stable. During the production process, the amount of the acid solution in the storage tank continuously decreases. When the reduction amount is close to the total amount of the original acid solution, it can be judged that the remaining acid solution volume is insufficient at this time, and the main storage tank 20 should be replaced in time.

[0024] Preferably, the number of the main storage tanks 20 is two, and the number of the weighing platforms 19 is the same as that of the main storage tanks 20. Each main storage tank 20 is connected to a weighing platform 19. During normal production, connecting multiple main storage tanks 20 at the same time can maintain a longer time, and the number of times of replacing the main storage tank 20 can be reduced. The spare storage tank 22 plays a temporary remedial role when the main storage tank 20 is not replaced in time, reducing the impact on the production line. The situation where the spare storage tank 22 is really put into use is less.

[0025] Preferably, an auxiliary chemical pump 25 is arranged between the main storage tank 20 and the spare storage tank 22. The main storage tank 20 and the spare storage tank 22 are connected through the auxiliary chemical pump 25, and the controller 24 is connected to the auxiliary chemical pump 25. The purpose of transporting the acid solution in the spare storage tank 22 into the main storage tank 20 is to empty the spare storage tank 22.

[0026] Generally speaking, the number of times that standby tank 22 is put into operation is less, so acid solution is full in standby tank 22, and there is no need to specially set the device that detects acid solution amount.The acid solution storage time in the standby tank 22 is too long and is also not good, therefore at intervals or after standby tank 22 is put into operation, just need to change standby tank 22, and the acid solution in the standby tank 22 enters in the main tank 20 by auxiliary agent pump 25, is used in the production subsequently, can directly change empty standby tank 22 this moment.It is easy to understand that when shifting standby tank 22 acid solutions, the main tank 20 connected thereto can hold the acid solution of input.Such as when not in time changing main tank 20, standby tank 22 is put into operation, and the acid solution in the standby tank 22 is pumped to and uses in the pickling tank 14, meanwhile, the acid solution in the standby tank 22 is pumped to and is less in the main tank 20 of acid solution residual quantity by auxiliary agent pump 25, makes this main tank 20 can normally be put into operation again. For example, in normal production, when the main storage tank 20 does not need to be replaced but the spare storage tank 22 needs to be replaced when it is due, the main storage tank 20 inputs acid into the pickling tank 14, and the spare storage tank 22 inputs acid into the main storage tank 20 until all the acid in the spare storage tank 22 is output.

[0027] The automatic acid compensation device automatically compensates the acid in the pickling tank 14 through sensors, the main storage tank 20, and the main reagent pump 21. The backup storage tank 22 and backup reagent pump 23 automatically compensate for any abnormalities in the pickling tank 14, ensuring normal production efficiency. The pickling components automatically replenish acid through the coordination of the pickling tank 14 and the automatic acid compensation device, achieving automated production, reducing the frequency of manual acid changes, and effectively minimizing safety risks.

[0028] The lifting assembly includes a bracket 5, a hook 1 and a connecting rod 9. The hook 1 is arranged in the bracket 5, and the connecting rod 9 is arranged on the hook 1.

[0029] The hook 1 includes an integrally formed upper cross bar 2, a lower cross bar 3 and a vertical bar 4. The vertical bar 4 is located on one side of the upper cross bar and the lower cross bar 3. The top end of the vertical bar 4 is connected to one end of the upper cross bar, and the bottom end of the vertical bar 4 is connected to one end of the lower cross bar 3. That is, the hook 1 as a whole is similar to a "匚"-shaped structure. An external limit protrusion is provided at the other end of the lower cross bar 3 to limit the wire from escaping from the lower cross bar 3.

[0030] Combine Figure 1 As can be seen, lower crossbar 3 passes through multiple coils of wire, and the overhead crane hoists the wires into pickling tank 14 for pickling, effectively improving pickling efficiency. Only the wires and the lower half of hook 1 are immersed in the acid solution, while the rest of hook 1 is above the acid solution, minimizing acid loss. After pickling, the wires are hoisted to subsequent processes. During the hoisting process, the multiple coils of wire remain stably positioned on lower crossbar 3, effectively reducing production risks.

[0031] The bracket 5 includes side support rods 6 and a bottom plate 7. Vertical side support rods 6 are respectively arranged on both sides of the bottom plate 7. A docking port 8 is opened at the top of the side support rod 6. The end of the upper cross bar 2 of the hook 1 is embedded into the docking port 8 at the top of the same-side side support rod 6 from top to bottom. That is, after the connection between the hook 1 and multiple coils of wire is completed, the hook 1 is first placed on the bracket 5. At this time, there is a gap between the bottom surface of the wire and the bottom plate 7, and the wire is in a suspended state, avoiding the situation of connecting the wire to the hook 1 just before hoisting in conventional production, and effectively solving the problem that the lower part of the wire is overly pressed by its own weight when placed on the bottom surface. Due to the existence of the bracket 5, during the production process, multiple hooks 1 can be prepared in advance, each loaded with wire, and then sequentially lifted into the pickling tank 14 by a crane, effectively improving the production efficiency.

[0032] The connecting rod 9 is arranged at the middle position of the top surface of the upper cross bar 2. The connecting rod 9 is parallel to the upper cross bar 2. Oblique rods 10 are respectively arranged at both ends of the connecting rod 9. The top end of the oblique rod 10 is connected to the end of the connecting rod 9. The included angle between the oblique rod 10 and the connecting rod 9 is an obtuse angle. The bottom end of the oblique rod 10 is connected to the top surface of the upper cross bar 2. The included angle between the oblique rod 10 and the upper cross bar 2 is an acute angle. It is easy to understand that the distance between the bottom ends of the two oblique rods 10 is greater than the distance between the top ends of the two oblique rods 10. The function of the connecting rod 9 is to be detachably connected to the crane, realizing the automatic connection and automatic separation between the hoisting assembly and the crane. Specifically, when the hook 11 of the crane descends to the position of the connecting rod 9, the hook 11 enters the space between the connecting rod 9 and the upper cross bar 2, and then when the hook 11 rises, the docking with the connecting rod 9 is completed. Similarly, when the crane hook 11 descends a certain distance and separates from the connecting rod 9, it can then retreat and exit the space between the connecting rod 9 and the upper cross bar 2, completing the separation between the hook 11 and the connecting rod 9.

[0033] The arrangement of the connecting rod 9 above the hook 1 cooperates with the bracket 5. After pre-loading wire on multiple hooks 1 according to the production rhythm, the hooks 1 are placed on the bracket 5 for standby. The multiple hooks 1 and the wire are orderly lifted into the pickling tank 14 by a crane for pickling treatment, and the pickled wire is lifted out of the pickling tank 14.

[0034] In the present invention, the crane is a conventional existing crane device. The crane is arranged directly above the pickling tank 14. The number of hooks 11 of the crane is two. A fixed rod is arranged between the two hooks 11. The distance between the two hooks 11 is the same as the length of the connecting rod 9 above the hook 1. The two hooks 11 are lifted and lowered synchronously. When the two hooks 11 come into contact with the connecting rod 9, the hooks 11 will automatically adjust their positions during the rising process. Eventually, the two hooks 11 are respectively at both ends of the connecting rod 9, and when lifting the hook 1, the hook 1 will not tilt to one side.

[0035] Furthermore, the number of cranes is two, respectively controlling the wire to enter the pickling tank 14 and controlling the wire to leave the pickling tank 14.

[0036] The transportation assembly includes a track 15 and a transport trolley 12. The track 15 is arranged in front of the pickling tank 14. The transport trolley 12 moves along the track 15. A proximity sensor 16 is arranged on the side of the transport trolley 12 facing the pickling tank 14, and a detection member 17 cooperating with the proximity sensor 16 is arranged on the side of the pickling tank 14 facing the track 15. When the transport trolley 12 moves to the front of the pickling tank 14, precise positioning of the transport trolley 12 is achieved through the cooperation of the proximity sensor 16 and the detection member 17.

[0037] The hoisting assembly is placed on the transport trolley 12. Each hoisting assembly corresponds to one transport trolley 12. The transport trolley 12 has its own power and transports the hoisting assembly to wait in front of the pickling tank 14. After the overhead crane hoists the hook 1 and the wire rod, the transport trolley 12 then transports the remaining bracket 5 away from the position in front of the pickling tank 14.

[0038] Furthermore, the track 15 is a track 15 connected end to end, so that the space in front of the pickling tank 14 is communicated with the workshop where the wire rod is loaded into the hook 1. Workers can load the wire rod into the hook 1 in another workshop, such as an adjacent workshop, and then place the hook 1 on the bracket 5 above the transport trolley 12. Subsequently, the transport trolley 12 automatically transports the hook 1 and the wire rod towards the pickling tank 14. After the overhead crane hoists the wire rod into the pickling tank 14, the transport trolley 12 transports the empty bracket 5 into the workshop to wait for the next installation of the hook 1.

[0039] Even further, in order to judge the stable connection between the overhead crane hook 11 and the connecting rod 9 above the hook 1, two weight sensors 13 are arranged on the transport trolley 12, and the two weight sensors 13 are respectively arranged below both sides of the bottom surface of the bottom plate 7 of the bracket 5. It is easy to understand that during the process of the overhead crane hoisting the hook 1, the hook 1 should rise smoothly, and both sides of the hook 1 are close to leaving the bracket 5 simultaneously, which is reflected in that the trends and changes of the values of the two weight sensors 13 should be close. When the value of one weight sensor 13 decreases significantly while the value change of the other weight sensor 13 is not obvious or increases significantly, it indicates that the two hooks 11 of the overhead crane do not fully contact the connecting rod 9, and there may be a situation where one of the hooks 11 is disengaged. At this time, the overhead crane can readjust the position of the hook 1.

[0040] In the present invention, the transport trolley 12 is networked with the overhead crane to achieve linkage. It is easy to understand that the overhead crane, the transportation assembly and the hoisting assembly form an overall automated production, and the pickling assembly itself is another overall automated production. The two overall automated productions are linked through the inductor in the pickling tank 14, so as to realize the automated production of the iron wire rod in the pickling process and effectively improve the production efficiency.

[0041] The present invention also proposes a preparation process for iron wire rod, and the steps are as follows: S1. Load the wire material of the iron wire into the hook 1, and place the hook 1 on the bracket 5 for standby; S2. Place the bracket 5 with the hook 1 on the transport trolley 12, and adjust the position of the bracket 5 on the transport trolley 12 so that both weight sensors 13 of the transport trolley 12 can detect the weight data of the bracket 5, the hook 1, and the wire material; S3. Repeat steps S1 and S2, and there are multiple transport trolleys 12 with hooks 1 and wire materials on the track 15 at the same time; S4. Multiple transport trolleys 12 move along the track 15 towards the pickling tank 14. When the first transport trolley 12 reaches directly in front of the pickling tank 14, all the transport trolleys 12 behind the first transport trolley 12 stop; S5. The overhead crane moves to directly above the transport trolley 12 in front of the pickling tank 14. Subsequently, the two lifting hooks 11 descend synchronously, connect to the connecting rod 9 above the hook 1, and then the overhead crane lifts the hook 1; During the process of lifting the hook 1, when the changes of the two weight sensors 13 of the transport trolley 12 are the same, it is determined that the overhead crane lifting hook 11 is stably connected to the hook 1; when the changes of the two weight sensors 13 of the transport trolley 12 are different, it is determined that the overhead crane lifting hook 11 is not stably connected to the hook 1, and the overhead crane readjusts its position until the lifting hook 11 is stably connected to the hook 1; S6. When the sensor in the pickling tank 14 detects that the wire material enters, the acid solution is automatically replenished into the pickling tank 14, and the wire material is pickled. At the same time, the transport trolley 12 in front of the pickling tank 14 continues to move along the track 15 and leaves the pickling tank 14, and the transport trolleys 12 behind continue to move forward until a new transport trolley 12 moves to directly in front of the pickling tank 14; S7. When the wire material in the pickling tank 14 is pickled, the overhead crane lifts the hook 1 and the wire material out of the pickling tank 14; S8. Repeat steps S4 - S7. Among them, when the pickling tank 14 is full of wire materials in step S6, the overhead crane stops lifting the wire materials into the pickling tank 14, and after completing step S7, repeat steps S4 - S7; S9. The pickled wire materials enter the subsequent wire drawing, heat treatment, surface treatment, and cooling coiling processes in sequence to form iron wire products.

[0042] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. Equipment for preparing iron wire, characterized in that, It includes a pickling component, an overhead crane, a lifting component and a transportation component; The pickling component includes a pickling tank (14), and an inductor is arranged in the pickling tank (14); The lifting component includes a bracket (5), a hook (1) and a connecting rod (9). The hook (1) is arranged inside the bracket (5), and the connecting rod (9) is arranged on the hook (1); Wherein, the hook (1) includes an integrally formed upper cross bar (2), a lower cross bar (3) and a vertical bar (4). The vertical bar (4) is located on one side of the upper cross bar and the lower cross bar (3). The top end of the vertical bar (4) is connected to one end of the upper cross bar, and the bottom end of the vertical bar (4) is connected to one end of the lower cross bar (3). An outer limit protrusion is arranged at the other end of the lower cross bar (3) to prevent the wire from slipping off the lower cross bar (3); Wherein, the bracket (5) includes side support rods (6) and a bottom plate (7). Vertical side support rods (6) are arranged on both sides of the bottom plate (7). A docking port (8) is opened at the top of the side support rods (6). The end of the upper cross bar (2) of the hook (1) is embedded into the docking port (8) at the top of the same-side side support rod (6) from top to bottom; Wherein, the connecting rod (9) is arranged at the middle position of the top surface of the upper cross bar (2). The connecting rod (9) is parallel to the upper cross bar (2). Oblique rods (10) are arranged at both ends of the connecting rod (9). The top end of the oblique rod (10) is connected to the end of the connecting rod (9). The included angle between the oblique rod (10) and the connecting rod (9) is an obtuse angle. The bottom end of the oblique rod (10) is connected to the top surface of the upper cross bar (2). The included angle between the oblique rod (10) and the upper cross bar (2) is an acute angle; The overhead crane is arranged directly above the pickling tank (14). The number of hooks (11) of the overhead crane is two. A fixing rod is arranged between the two hooks (11). The distance between the two hooks (11) is the same as the length of the connecting rod (9) above the hook (1); The transportation component includes a track (15) and a transportation trolley (12). The track (15) is arranged in front of the pickling tank (14). The transportation trolley (12) moves along the track (15). A proximity sensor (16) is arranged on the side of the transportation trolley (12) facing the pickling tank (14). A detection piece (17) cooperating with the proximity sensor (16) is arranged on the side of the pickling tank (14) facing the track (15). The bracket (5) is placed on the transportation trolley (12); 2. The device for preparing iron wire according to claim 1, characterized in that, Two weight sensors (13) are arranged on the transportation trolley (12), and the two weight sensors (13) are respectively arranged below the two sides of the bottom surface of the bottom plate (7) of the bracket (5); 3. The device for preparing iron wire according to claim 2, characterized in that, The track (15) is a track (15) connected end to end; 4. The device for preparing iron wire according to any one of claims 1-3, characterized in that, The number of overhead cranes is two, which respectively control the wire to enter the pickling tank (14) and control the wire to leave the pickling tank (14).

5. The device for preparing iron wire according to claim 1, characterized in that, The pickling component further includes an automatic acid liquid compensation device, which includes a main storage tank (20), a weighing platform (19), a main chemical pump (21), a spare storage tank (22), a spare chemical pump (23) and a controller (24). The main storage tank (20) is connected to the acid liquid detection component of the storage tank. The main storage tank (20) is connected to the pickling tank (14) through the main chemical pump (21). The spare storage tank (22) is connected to the pickling tank (14) through the spare chemical pump (23). The main storage tank (20) is placed on the weighing platform (19). The remaining acid liquid volume is visually judged by detecting the weight reduction of the main storage tank (20). The inductor, the weighing platform (19), the main chemical pump (21) and the spare chemical pump (23) are all connected to the controller (24).

6. The device for preparing iron wire according to claim 5, characterized in that, The number of the main storage tanks (20) is two, and the number of the weighing platforms (19) is the same as that of the main storage tanks (20). Each main storage tank (20) is connected to a weighing platform (19).

7. The device for preparing iron wire according to claim 5 or 6, characterized in that, An auxiliary chemical pump (25) is arranged between the main storage tank (20) and the spare storage tank (22). The main storage tank (20) and the spare storage tank (22) are connected through the auxiliary chemical pump (25). The controller (24) is connected to the auxiliary chemical pump (25).

8. A preparation process of iron wire, characterized in that, The equipment applicable to the wire preparation as described in claim 2 is as follows: S1. Load the wire material of the wire into the hook (1), and place the hook (1) on the bracket (5) for standby; S2. Place the bracket (5) equipped with the hook (1) on the transport trolley (12), and adjust the position of the bracket (5) on the transport trolley (12) so that both weight sensors (13) of the transport trolley (12) can detect the weight data of the bracket (5), the hook (1) and the wire material; S3. Repeat steps S1 and S2, and there are multiple transport trolleys (12) with hooks (1) and wire materials on the track (15) at the same time; S4. Multiple transport trolleys (12) move along the track (15) towards the pickling tank (14). When the first transport trolley (12) reaches directly in front of the pickling tank (14), all the transport trolleys (12) behind the first transport trolley (12) stop; S5. The overhead crane moves to directly above the transport trolley (12) in front of the pickling tank (14). Subsequently, the two lifting hooks (11) descend synchronously, connect to the connecting rod (9) above the hook (1), and then the overhead crane lifts the hook (1); During the lifting process of the hook (1), when the change situations of the two weight sensors (13) of the transport trolley (12) are the same, it is judged that the overhead crane lifting hook (11) is stably connected to the hook (1); when the change situations of the two weight sensors (13) of the transport trolley (12) are different, it is judged that the overhead crane lifting hook (11) is not stably connected to the hook (1), and the overhead crane readjusts its position until the lifting hook (11) is stably connected to the hook (1); S6. When the sensor in the pickling tank (14) detects the entry of the wire rod, the pickling solution is automatically replenished into the pickling tank (14), and the wire rod is pickled. At the same time, the transport trolley (12) in front of the pickling tank (14) continues to move along the track (15), leaving the pickling tank (14), and the transport trolley (12) at the rear continues to move forward until a new transport trolley (12) moves in front of the pickling tank (14); S7. When the wire rod in the pickling tank (14) is pickled, the overhead crane lifts the hook (1) and the wire rod out of the pickling tank (14); S8. Repeat steps S4 - S7. Among them, when the pickling tank (14) is full of wire rods in step S6, the overhead crane stops lifting the wire rods into the pickling tank (14), and after completing step S7, repeat steps S4 - S7; S9. The pickled wire rods enter the subsequent wire drawing, heat treatment, surface treatment and cooling and coiling processes in sequence to produce iron wire products.

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