Adjustable roller structure of cold pilger mill

Abstract

The utility model relates to the field of metal pipe processing equipment, and provides an adjustable roller structure of a cold pilger mill, which comprises a rack, a cooling component is fixed in the rack, a mounting component is fixed in the cooling component, the cooling component comprises a roller body, a sealing port is arranged at the top of the roller body, and the mounting component is fixed in the mounting component. A cooling box is arranged in the roller body, a cooling pump is fixed in the cooling box, a conveying pipe is connected to the side face of the cooling pump in a sealed mode, a conveying groove is formed in the other side of the conveying pipe, and a cooling opening is formed in the other end of the conveying groove. By means of the technical scheme, the problems that in the prior art, when an adjustable roller structure of a cold pilger mill is used and a roller conducts cold rolling machining on a pipe fitting for a long time, heat can be accumulated on the contact face of the roller and the pipe fitting, so that when the pipe fitting is machined for a long time, the surface roughness of the roller is increased, the machined size of the pipe fitting is unstable, and the machining precision is poor are solved. Therefore, the product precision is influenced.

Description

Technical Field

[0001] This utility model relates to the technical field of metal pipe processing equipment, specifically to an adjustable roll structure for a cold rolling mill. Background Technology

[0002] The research and application of cold rolling mills has a long history in my country. Since the 1960s, my country has begun to independently develop cold rolling mills, and has gradually formed two major product series: LG type (two-roll) and LD type (multi-roll). With continuous technological advancements, the performance and quality of cold rolling mills have been significantly improved, and they are widely used in the metal pipe processing industry.

[0003] When the adjustable roll structure of the existing cold rolling tube mill is in use, heat will accumulate on the contact surface between the roll and the tube during long-term cold rolling. This will not only increase the surface roughness of the roll, but also cause the dimensions of the tube to be unstable, thus affecting the product accuracy. Utility Model Content

[0004] This utility model proposes an adjustable roll structure for a cold rolling mill, which solves the problem in related technologies where, during long-term cold rolling of tubes, heat accumulates on the contact surface between the roll and the tube, leading to increased surface roughness of the roll and unstable dimensions of the tube, thus affecting product accuracy.

[0005] The technical solution of this utility model is as follows: an adjustable roll structure for a cold rolling mill, including a frame, a cooling assembly fixed inside the frame, and an installation assembly fixed inside the cooling assembly;

[0006] The cooling assembly includes a roll body, a sealing port on the top of the roll body, a cooling box inside the roll body, a cooling pump fixed in the cooling box, a conveying pipe sealed to the side of the cooling pump, a conveying groove on the other side of the conveying pipe, and a cooling port at the other end of the conveying groove.

[0007] Preferably, a motor is fixed at the bottom of the frame, an eccentric wheel is fixed at the output end of the motor, a connecting rod is hinged to the top of the eccentric wheel, a transition rod is hinged to the other end of the connecting rod, a push plate is hinged to the other end of the transition rod, sliding plates are fixed on both sides of the push plate, and a roller body is rotatably connected in the sliding plate.

[0008] Preferably, a support block is fixed to the side of the sliding plate away from the roll body, and a contact rod is fixed to the side of the support block.

[0009] Preferably, the top two sides of the frame are fixed with fixing columns, and pressure sensors are fixed to the sides of the fixing columns.

[0010] Preferably, two sets of pressure sensors are provided, and the two sets of pressure sensors are symmetrically fixed on both sides of the frame.

[0011] Preferably, the mounting component includes a mounting block, the mounting block having a mounting groove, the mounting groove having an annular groove, an arc-shaped ring being slidably connected inside the annular groove, and a retaining block at the top of the arc-shaped ring.

[0012] Preferably, a positioning block is fixed to the inner wall of the annular groove, the positioning block has a positioning groove, and a telescopic limiting block is fixed to the inner wall of the positioning groove.

[0013] Preferably, a slot is fixed to the bottom side of the roll body, the slot is matched with the locking block, and a limiting block matching the positioning slot is fixed to the side of the arc ring away from the positioning block.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, by setting a cooling component, the contact surface between the roll and the tube is cooled down by the internal cooling device of the roll when the roll reciprocates over the tube. This prevents the contact surface between the roll and the tube from getting too hot, thereby improving the service life of the roll and making the dimensions of the processed tube more stable. At the same time, by using an intermittent device, the cooling device can be triggered intermittently to cool the contact surface of the roll, which not only improves the cooling efficiency of the contact surface of the roll, but also extends the service life of the cooling device. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the unfolded external structure of the cooling component of this utility model;

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the installation component structure of this utility model;

[0021] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0022] In the diagram: 1. Frame; 2. Cooling assembly; 21. Roll body; 22. Sealing port; 23. Cooling box; 24. Cooling pump; 25. Conveying pipe; 26. Conveying trough; 27. Cooling port; 28. Motor; 29. ​​Eccentric wheel; 210. Connecting rod; 211. Adapter rod; 212. Push plate; 213. Sliding plate; 214. Support block; 215. Contact rod; 216. Fixed column; 217. Pressure sensor; 3. Mounting assembly; 31. Mounting block; 32. Mounting groove; 33. Annular groove; 34. Arc ring; 35. Locking block; 36. Positioning block; 37. Positioning groove; 38. Telescopic limit block. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] Example 1

[0025] like Figures 1-3 As shown, this embodiment proposes an adjustable roll structure for a cold rolling mill, including a frame 1, a cooling assembly 2 fixed inside the frame 1, and an installation assembly 3 fixed inside the cooling assembly 2;

[0026] Cooling assembly 2 includes a roll body 21, a sealing port 22 is provided on the top of the roll body 21, a cooling box 23 is provided inside the roll body 21, a cooling pump 24 is fixed in the cooling box 23, a conveying pipe 25 is sealed to the side of the cooling pump 24, a conveying groove 26 is provided on the other side of the conveying pipe 25, and a cooling port 27 is provided at the other end of the conveying groove 26.

[0027] A motor 28 is fixed at the bottom of the frame 1. An eccentric wheel 29 is fixed at the output end of the motor 28. A connecting rod 210 is hinged to the top of the eccentric wheel 29. A transition rod 211 is hinged to the other end of the connecting rod 210. A push plate 212 is hinged to the other end of the transition rod 211. Sliding plates 213 are fixed on both sides of the push plate 212. A roller body 21 is rotatably connected in the sliding plate 213. The eccentric wheel 29 and the connecting rod 210 work together to promote the reciprocating motion of the sliding plate 213 by the drive of the motor 28.

[0028] A support block 214 is fixed on the side of the sliding plate 213 away from the roll body 21. A contact rod 215 is fixed on the side of the support block 214. The sliding plate 213 is driven to reciprocate by the motor 28, so that the contact rod 215 can move.

[0029] The top two sides of the frame 1 are fixed with fixed columns 216, and the sides of the fixed columns 216 are fixed with pressure sensors 217. The pressure sensor 217 is a STZ1-D30 type sensor. When the contact rod 215 contacts the pressure sensor 217, the cooling pump 24 can be controlled by the PLC console to cool the roll body 21.

[0030] Two sets of pressure sensors 217 are provided, and the two sets of pressure sensors 217 are symmetrically fixed on both sides of the frame 1, so that the cooling pump 24 can be intermittently controlled to cool according to the reciprocating motion, which can reduce the use of coolant.

[0031] In this embodiment, when the roll body 21 tube is being rolled, the motor 28 drives the eccentric wheel 29 to rotate, so that the connecting rod 210 hinged to the top of the eccentric wheel 29 drives the push plate 212 to reciprocate through the adapter rod 211. This allows the roll to be processed while the contact rod 215 on the side of the sliding plate 213 moves back and forth. When the contact rod 215 contacts the pressure sensor 217, the PLC console can control the cooling pump 24 inside the roll body 21 to start, so that the coolant in the cooling tank 23 is drawn and transported to the conveying trough 26 through the conveying pipe 25. Then, the coolant is cooled down through the cooling port 27 to the contact surface between the roll body 21 and the tube, thereby preventing the contact surface temperature between the roll body 21 and the tube from being too high, which would lead to unstable dimensions of the produced tube.

[0032] Example 2

[0033] like Figures 4-5 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes that the installation component 3 includes an installation block 31, an installation groove 32 is provided in the installation block 31, an annular groove 33 is provided in the installation groove 32, an arc-shaped ring 34 is slidably connected inside the annular groove 33, and a locking block 35 is provided at the top height of the arc-shaped ring 34.

[0034] A positioning block 36 is fixed to the inner wall of the annular groove 33. A positioning groove 37 is provided in the positioning block 36. A telescopic limiting block 38 is fixed to the inner wall of the positioning groove 37. The positioning block 36 is used to position the arc ring 34 of the installed roll body 21, so that the roll body 21 can be stably installed on the mounting block 31.

[0035] A slot is fixed on the bottom side of the roll body 21, and the slot is matched with the slot. A limiting block that matches the positioning groove 37 is fixed on the side of the arc ring 34 away from the positioning block 36, which allows the roll body 21 to be installed and disassembled more quickly, thereby saving time when replacing the roll body 21 and improving production efficiency.

[0036] In this embodiment, when it is necessary to replace the roll body 21, the roll body 21 can be rotated to remove it from the annular groove 33 and a new roll body 21 can be replaced. The new roll body 21 is engaged with the locking block 35 through the side slot. Then, by rotating the roll body 21, the arc ring 34 rotates in the annular groove 33. When the limiting block on the side of the arc ring 34 is engaged in the positioning groove 37, the telescopic limiting block 38 inside the positioning groove 37 contracts to fix the arc ring 34, so that the roll body 21 can be stably installed in the mounting block 31.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An adjustable roll construction for a cold pilger mill, characterized in that Including frame (1), the frame (1) inside fixed with cooling assembly (2), the cooling assembly (2) fixed with installation assembly (3) in it; The cooling assembly (2) includes a roller body (21), a sealing port (22) is opened at the top of the roller body (21), a cooling box (23) is opened inside the roller body (21), a cooling pump (24) is fixed in the cooling box (23), a conveying pipe (25) is sealingly connected to the side of the cooling pump (24), a conveying groove (26) is opened on the other side of the conveying pipe (25), and a cooling port (27) is opened at the other end of the conveying groove (26).

2. An adjustable roll arrangement for a cold pilger mill as claimed in claim 1, characterized in that The bottom of the frame (1) is fixed with a motor (28), the output end of the motor (28) is fixed with an eccentric wheel (29), the top of the eccentric wheel (29) is hinged with a connecting rod (210), the other end of the connecting rod (210) is hinged with an adapter rod (211), the other end of the adapter rod (211) is hinged with a push plate (212), and the two sides of the push plate (212) are fixed with sliding plates (213), and the roller body (21) is rotatably connected in the sliding plates (213).

3. An adjustable roll arrangement for a cold pilger mill as defined in claim 2, characterized in that The side of the sliding plate (213) away from the roller body (21) is fixed with a supporting block (214), and the side of the supporting block (214) is fixed with a touch rod (215).

4. An adjustable roll arrangement for a cold pilger mill as defined in claim 1, wherein, The top of the frame (1) is fixed with a fixed column (216), and the side of the fixed column (216) is fixed with a pressure sensor (217).

5. An adjustable roll arrangement for a cold pilger mill as defined in claim 4, characterized in that The pressure sensor (217) is provided with two groups, and the two groups of pressure sensors (217) are symmetrically fixed on the two sides of the frame (1).

6. An adjustable roll arrangement for a cold pilger mill as defined in claim 1, wherein, The installation assembly (3) includes an installation block (31), an installation groove (32) is opened in the installation block (31), an annular groove (33) is opened in the installation groove (32), an arc-shaped ring (34) is slidably connected inside the annular groove (33), and a clamping block (35) is provided at the top of the arc-shaped ring (34).

7. An adjustable roll arrangement for a cold pilger mill as defined in claim 6, characterized in that The inner wall of the annular groove (33) is fixed with a positioning block (36), the positioning block (36) is provided with a positioning groove (37), and the inner wall of the positioning groove (37) is fixed with a telescopic limiting block (38).

8. An adjustable roll arrangement for a cold pilger mill as defined in claim 6, wherein, The side surface of the roller body (21) is fixed with a clamping groove, the clamping block (35) is matched with the clamping groove, and the side of the arc-shaped ring (34) away from the positioning block (36) is fixed with a limiting block matched with the positioning groove (37).

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