A wire rod mill

Abstract

The utility model relates to rolling mill technical field, more particularly to a kind of wire bar rolling mill, including base, the upper end one side of base is fixedly installed with support plate, two bearings are fixed with along up and down and pass through on the support plate, the interference and the shaft rod of being fixed with are passed through on the inner ring wall of any one bearing, the one end of the shaft rod is slidably sleeved with the roll for wire bar roll forming, the one end of the shaft rod is covered with the fixed seat for roll positioning, the end surface of the shaft rod is fixedly assembled by bolt in the middle position of the fixed seat, the edge position of the fixed seat is fixedly installed with the surface of roll by bolt. The scheme adopts double roll counter-rotating, over motor drive upper shaft rod and utilize gear engagement to drive lower shaft rod synchronous reverse rotation, realizes the efficient roll forming of wire bar, and the bolt connection mode of roll and shaft rod through fixed seat ensures transmission stability, and the quick replacement of roll is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill technology, and more specifically, to a wire rod rolling mill. Background Technology

[0002] Wire rod is a long, thin metal material, usually made of steel. Its cross-section can be circular, square, rectangular, or other special shapes, and its length can be customized as needed. Wire rod has a wide range of applications in industrial production.

[0003] A search revealed that, according to authorization announcement number CN204672693U, a wire rod rolling mill is disclosed, comprising: a first transmission device, wherein at least two pairs of first gears with different transmission ratios are arranged on a first drive shaft and a first driven shaft, and the first transmission device further comprises a first shifting device for switching different first gear pairs to be fixedly connected to the first drive shaft or the first driven shaft; a second transmission device, wherein at least two pairs of second gears with different transmission ratios are arranged on a second drive shaft and a second driven shaft, and the second transmission device further comprises a second shifting device for switching different second gear pairs to be fixedly connected to the second drive shaft or the second driven shaft; a first power device, which is connected to a first roll box via the first transmission device; and a second power device, which is connected to a second roll box via the second transmission device. In this invention, each roll box is driven by a separate low-power power device, and power is transmitted by a shifting transmission device, which significantly reduces costs and lowers investment and maintenance costs.

[0004] Currently, when processing wire rods, they need to be heated to a red temperature first, and then rolled and shaped using rolls of different shapes. After shaping, some wire rods are quite long. If they are immediately sent to cold water for cooling after a portion has been rolled, the temperature of the unrolled parts will drop due to the heat conduction effect, affecting the rolling quality. At the same time, if the rolled parts are not properly cooled, they are prone to deformation during the transfer process. Therefore, it is necessary to add a transitional cooling effect to the rolling process for long wire rods to prevent sudden temperature drops and to achieve moderate cooling and shaping, thus avoiding twisting. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a solution that overcomes or at least partially solves the above technical problems.

[0006] This utility model provides a wire rod rolling mill, including a base, a support plate fixedly installed on one side of the upper end of the base, two bearings fixedly fixed through the upper and lower edges of the support plate, a shaft fixedly inserted through the inner ring wall of any one of the bearings, a roll for wire rod forming slidably sleeved at one end of the shaft, a fixing seat for roll positioning covering one end of the shaft, the middle position of the fixing seat being fixedly assembled with the end face of the shaft by bolts, and the edge position of the fixing seat being fixedly installed with the surface of the roll by bolts;

[0007] A drive gear is fixedly sleeved on the surface of the upper shaft. A motor is installed at the end of the upper shaft away from the fixed seat. The outer wall of the motor is fixed to the surface of the support plate by a bracket. The motor has a drive shaft inside, and the end of the shaft is fixedly connected to the upper shaft by a coupling. A linkage gear is fixedly sleeved on the surface of the lower shaft. The linkage gear and the drive gear are meshed and transmitted with each other.

[0008] In a preferred embodiment, a support platform is fixedly installed on the upper side of one side of the base, and a support frame is fixedly installed on the upper end of the support platform. The support frame has a U-shaped structure.

[0009] In a preferred embodiment, the lower inner end of the support frame is fixed with a plurality of equally spaced annular seats by a bracket. The annular seats have an annular cavity inside. A branch pipe is embedded and fixed on one side of the annular seat. One end of the branch pipe communicates with the interior of the annular cavity. The end of the branch pipe away from the annular seat extends outward through the interior of the support frame.

[0010] In a preferred embodiment, a plurality of air nozzles are fixedly distributed on the inner side of the annular seat, and one end of each air nozzle is connected to the interior of the annular cavity.

[0011] In a preferred embodiment, the ends of several branch pipes are connected to the same diversion pipe, and the lower end of the diversion pipe is fixedly connected to an air supply pipe.

[0012] In a preferred embodiment, a fan is fixedly mounted on the upper end of the base via a bracket, and the connection between the air outlet of the fan and the air supply duct is made via a flange.

[0013] In a preferred embodiment, an installation column is fixedly installed on the lower end of the inner wall of the support frame. The installation columns and the annular seat are staggered. The surface of the installation column is slidably fitted with an installation seat, and the upper end of the installation seat is fixedly installed with a receiving platform.

[0014] In a preferred embodiment, the surface of the mounting post is provided with a pin groove, and a locking pin is slidably sleeved inside the pin groove. The end face of the locking pin is a curved structure. A spring is provided inside the pin groove. The two ends of the spring are fixedly installed to the end face of the locking pin and the inner wall of the pin groove, respectively. An arc-shaped groove is provided on the inner wall of the mounting base. The inner arc surface of the arc-shaped groove is in close contact with the end curved surface of the locking pin.

[0015] The wire rod rolling mill provided by this utility model has the following beneficial effects:

[0016] 1. This solution adopts double rollers rotating in opposite directions. The upper shaft is driven by a motor and the lower shaft is driven to rotate synchronously in the opposite direction by gear meshing, which realizes the efficient roll forming of wire rod. The rollers are connected to the shaft by bolts through fixed seats, which not only ensures transmission stability but also facilitates quick replacement of rollers.

[0017] 2. As described in 1, the gradual cooling of the formed wire rod segment is achieved by uniformly spraying cold air through multiple nozzles inside the annular seat. The air supply system composed of the diversion pipe and the fan can flexibly adjust the cooling intensity, which not only avoids material deformation caused by sudden cooling, but also prevents the loss of temperature in the unprocessed section through pre-cooling. The cooling units arranged in a staggered manner in the support frame work together with the receiving platform to provide physical support in the cooling process, effectively solving the deformation problem of long wire rods caused by their own weight and significantly improving the straightness of the product. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure provided by an embodiment of the present utility model;

[0020] Figure 2 A side view of the overall structure provided for an embodiment of this utility model;

[0021] Figure 3 A side view of the roll and shaft portion provided for an embodiment of this utility model;

[0022] Figure 4 A front view of the disassembled mounting column and mounting base provided for an embodiment of this utility model;

[0023] Figure 5 This is a side view of the disassembled mounting column and mounting base provided for an embodiment of the present utility model.

[0024] In the diagram: 1. Base; 11. Support plate; 12. Bearing; 13. Shaft; 14. Roller; 15. Fixed seat; 16. Drive gear; 17. Motor; 18. Linkage gear; 2. Support platform; 21. Support frame; 22. Ring seat; 23. Branch pipe; 24. Nozzle; 25. Diversion pipe; 26. Air supply pipe; 27. Fan; 3. Mounting column; 31. Mounting seat; 32. Receiving platform; 3001. Pin groove; 3002. Locking pin; 3003. Spring; 3004. Arc groove. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Example

[0027] Reference Figures 1-5 This utility model provides a technical solution: a wire rod rolling mill, including a base 1, a support plate 11 fixedly installed on one side of the upper end of the base 1, two bearings 12 fixedly through the upper edge of the support plate 11, a shaft 13 is interference-fitted and fixedly installed through the inner ring wall of any one of the bearings 12, a roll 14 for wire rod forming is slidably sleeved on one end of the shaft 13, a fixing seat 15 for positioning the roll 14 is covered on one end of the shaft 13, the middle position of the fixing seat 15 is fixedly assembled with the end face of the shaft 13 by bolts, the edge position of the fixing seat 15 is fixedly installed with the surface of the roll 14 by bolts, the shaft 13 can rotate stably based on the bearings 12, and the fixing seat 15 can fix the roll 14 and the shaft 13 after the roll 14 is sleeved on the shaft 13, ensuring that the roll 14 can rotate with the shaft 13;

[0028] A drive gear 16 is fixedly sleeved on the surface of the upper shaft 13. A motor 17 is provided at the end of the upper shaft 13 away from the fixed seat 15. The outer wall of the motor 17 is fixed to the surface of the support plate 11 by a bracket. The motor 17 has a drive shaft inside, and the end of the shaft is fixedly connected to the upper shaft 13 by a coupling. A linkage gear 18 is fixedly sleeved on the surface of the lower shaft 13. The linkage gear 18 and the drive gear 16 are meshed and driven. When the motor 17 is powered on, the shaft can rotate and the shaft 13 can be linked, which can realize the stable rotation of the roll 14. The drive gear 16 and the linkage gear 18 mesh to realize the opposite rotation of the two rolls 14. Thus, the red-temperature malleable wire rod can be continuously rolled and formed after passing between the two rolls 14.

[0029] Among them, a support platform 2 is fixedly installed on the upper side of one side of the base 1, and a support frame 21 is fixedly installed on the upper end of the support platform 2. The support frame 21 has a U-shaped structure and can play a supporting role after the online bar material is shaped.

[0030] The lower part of the support frame 21 is fixed with several equally spaced annular seats 22 by a bracket. The annular seats 22 have an annular cavity inside. A branch pipe 23 is embedded and fixed on one side of the annular seat 22. One end of the branch pipe 23 is connected to the inside of the annular cavity. The end of the branch pipe 23 away from the annular seat 22 extends outward through the inside of the support frame 21. Cold air can be introduced into the annular cavity inside the annular seat 22. The branch pipe 23 can ensure the stable flow of cold air.

[0031] The annular seat 22 has several air nozzles 24 fixedly distributed on its inner side. One end of each air nozzle 24 is connected to the interior of the annular cavity. When the rolled wire rod passes through the inner side of the annular seat 22, cold air can be blown out through the air nozzles 24 at multiple locations to provide transitional cooling for the already shaped part of the longer wire rod, avoiding direct contact with cold air, which could cause the unshaped part of the wire rod to have a lower forming temperature. At the same time, it can also pre-cool and shape the already shaped wire rod, preventing it from deforming while waiting for the wire rod to be fully rolled due to insufficient cooling.

[0032] Among them, the ends of several branch pipes 23 are connected to the same diversion pipe 25. The lower end of the diversion pipe 25 is fixedly connected to the air supply pipe 26. The diversion pipe 25 can be connected to multiple branch pipes 23 and the main airflow is transported through the air supply pipe 26.

[0033] The upper end of the base 1 is fixedly installed with a fan 27 by a bracket. The air outlet of the fan 27 is connected to the air supply duct 26 by a flange. After the power is turned on, the fan 27 delivers cold air. Its air inlet can directly absorb external air or be connected to the air outlet of the equipment that provides cold air. The cold air supply can be selected according to the actual situation.

[0034] Among them, the lower end of the inner wall of the support frame 21 is also fixedly installed with the mounting column 3. The mounting column 3 and the annular seat 22 are staggered. The mounting seat 31 is slidably sleeved on the surface of the mounting column 3. The upper end of the mounting seat 31 is fixedly installed with the receiving platform 32. The receiving platform 32 can provide auxiliary support and conveying when the bar is rolled and passes through the inner side of the annular seat 22.

[0035] The mounting column 3 has a pin groove 3001 on its surface. A retaining pin 3002 is slidably fitted inside the pin groove 3001. The end face of the retaining pin 3002 is curved. A spring 3003 is installed inside the pin groove 3001. The two ends of the spring 3003 are fixedly installed to the end face of the retaining pin 3002 and the inner wall of the pin groove 3001, respectively. An arc-shaped groove 3004 is provided on the inner wall of the mounting base 31. The inner arc surface of the arc-shaped groove 3004 is tightly fitted against the end curved surface of the retaining pin 3002. Due to different wire rod cross-sections... Due to varying thicknesses, the thickness of the receiving platform 32 is also a replaceable non-standard size. To facilitate quick disassembly of the receiving platform 32, pull the receiving platform 32 upwards. The end curved surface of the locking pin 3002 is pressed against the inner arc surface of the arc groove 3004, which compresses the spring 3003 and completely separates the locking pin 3002 from the arc groove 3004. The locking pin then re-presses against the inner wall surface of the mounting base 31. At this point, the locking pin 3002 is fully inserted into the pin groove 3001, thereby allowing the mounting base 31 to be separated from the mounting post 3.

[0036] Working method: After the motor 17 is powered on, its internal shaft drives the upper shaft 13 to rotate through the coupling. Since the shaft 13 is interference-fitted with the inner ring of the bearing 12 and the bearing 12 is fixed on the support plate 11, the shaft 13 can rotate stably under the support of the bearing 12. The drive gear 16 on the surface of the upper shaft 13 rotates synchronously with the shaft 13 and drives the linkage gear 18 on the surface of the lower shaft 13 to rotate in the opposite direction through meshing, thereby realizing the opposite rotation of the two shafts 13. The roller 14 is slidably sleeved on the end of the shaft 13 and is fixed to the end face of the shaft 13 and the surface of the roller 14 by bolts through the fixed seat 15, ensuring that the roller 14 rotates synchronously with the shaft 13. When the red-temperature plastic wire rod passes between the two rollers 14, the oppositely rotating rollers 14 continuously roll and form the wire rod through the squeezing action.

[0037] After the fan 27 is started, the cold air is delivered to the distribution pipe 25 through the air supply pipe 26, and then evenly distributed to the annular cavity inside the annular seat 22 through multiple branch pipes 23. The cold air in the annular cavity is sprayed out at high speed from the nozzle 24, forming a multi-directional airflow that covers the surface of the wire rod. Since the nozzles 24 are evenly distributed along the inner side of the annular seat 22, and the annular seat 22 is equidistantly arranged in the support frame 21, the cold air can cool the formed part of the wire rod in sections. This design avoids the sudden drop in temperature of the unformed part due to direct concentrated cooling, which would reduce its plasticity. At the same time, it prevents the formed part from deforming due to residual heat. The connection structure between the branch pipe 23 and the distribution pipe 25 ensures that the cold air is evenly distributed. The air inlet of the fan 27 can be connected to external cooling equipment as needed to further adjust the cooling intensity.

[0038] Mounting post 3 is fixed to the inner wall of support frame 21. A spring 3003 and a locking pin 3002 are installed in the pin groove 3001 on its surface. Mounting base 31 is fitted with the curved end surface of locking pin 3002 through the arc groove 3004 on its inner wall. Under the elastic force of spring 3003, locking pin 3002 secures mounting base 31. When the height of receiving platform 32 needs to be adjusted or replaced, the receiving platform 32 is pulled upwards. The arc surface inside the arc groove 3004 of mounting base 31 presses against the curved end surface of locking pin 3002, forcing locking pin 3002 to retract into pin groove 3001 and compressing spring 3003. At this time, mounting base 31 and mounting post 3 are unlocked and can slide or be disassembled freely. After release, spring 3003 pushes locking pin 3002 back to its original position, re-engaging it into arc groove 3004 to complete the fixation.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wire rod rolling mill, comprising a base (1), characterized in that: A support plate (11) is fixedly installed on one side of the upper end of the base (1). Two bearings (12) are fixedly fixed through the upper edge of the support plate (11). A shaft (13) is interference-fitted and fixed through the inner ring wall of any one of the bearings (12). A roll (14) for wire rod forming is slidably sleeved on one end of the shaft (13). A fixing seat (15) for positioning the roll (14) is covered on one end of the shaft (13). The middle position of the fixing seat (15) is fixedly assembled with the end face of the shaft (13) by bolts. The edge position of the fixing seat (15) is fixedly installed with the surface of the roll (14) by bolts. A drive gear (16) is fixedly sleeved on the surface of the upper shaft (13). A motor (17) is provided at the end of the upper shaft (13) away from the fixed seat (15). The outer wall of the motor (17) is fixed to the surface of the support plate (11) by a bracket. A drive shaft is provided inside the motor (17), and the end of the shaft is fixedly connected to the upper shaft (13) by a coupling. A linkage gear (18) is fixedly sleeved on the surface of the lower shaft (13). The linkage gear (18) and the drive gear (16) are meshed and transmitted with each other.

2. A wire rod rolling mill according to claim 1, characterized in that: A support platform (2) is fixedly installed on the upper side of one side of the base (1), and a support frame (21) is fixedly installed on the upper end of the support platform (2). The support frame (21) has a U-shaped structure.

3. A wire rod rolling mill according to claim 2, characterized in that: The lower end of the support frame (21) is fixed with several equally spaced annular seats (22) by a bracket. The annular seats (22) have an annular cavity inside. A branch pipe (23) is embedded and fixed on one side of the annular seat (22). One end of the branch pipe (23) is connected to the inside of the annular cavity. The end of the branch pipe (23) away from the annular seat (22) extends outward through the inside of the support frame (21).

4. A wire rod rolling mill according to claim 3, characterized in that: Several air nozzles (24) are fixedly distributed on the inner side of the annular seat (22), and one end of the air nozzle (24) is connected to the interior of the annular cavity.

5. A wire rod rolling mill according to claim 4, characterized in that: The ends of several branch pipes (23) are connected to the same diversion pipe (25), and the lower end of the diversion pipe (25) is fixedly connected to an air supply pipe (26).

6. A wire rod rolling mill according to claim 5, characterized in that: The upper end of the base (1) is fixedly installed with a fan (27) by a bracket, and the air outlet of the fan (27) is connected to the air supply pipe (26) by a flange.

7. A wire rod rolling mill according to claim 2, characterized in that: The lower end of the inner wall of the support frame (21) is also fixedly installed with an installation column (3). The installation column (3) and the annular seat (22) are arranged alternately. The surface of the installation column (3) is slidably sleeved with an installation seat (31). The upper end of the installation seat (31) is fixedly installed with a receiving platform (32).

8. A wire rod rolling mill according to claim 7, characterized in that: The mounting post (3) has a pin groove (3001) on its surface. A locking pin (3002) is slidably sleeved inside the pin groove (3001). The end face of the locking pin (3002) is curved. A spring (3003) is installed inside the pin groove (3001). The two ends of the spring (3003) are fixedly installed to the end face of the locking pin (3002) and the inner wall of the pin groove (3001), respectively. An arc groove (3004) is provided on the inner wall of the mounting base (31). The inner arc surface of the arc groove (3004) is in close contact with the end curved surface of the locking pin (3002).

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