Roller replacing device of steel pipe straightening machine

Abstract

The utility model discloses a roller replacing device for a steel pipe straightening machine, which belongs to the technical field of steel pipe processing equipment, and is characterized in that the roller replacing device comprises a base, a clamping replacing mechanism arranged in the application can flexibly adjust the height and the horizontal position of a roller clamping arm through cooperative work of a lifting structure and a translation structure, so that the roller clamping arm is accurately positioned on the outer side of a roller; after a roller fixing part is dismantled, an operator can easily control an electric push rod and drive an adjusting rotating plate to drive a roller clamping arm to accurately clamp a roller with the help of a controller, then the lifting structure is controlled to drive the translation structure, the roller clamping arm and the roller to ascend to be separated from the straightening machine, convenient dismantling is completed, and then the roller is transferred to a containing area. And when a new roller is installed, the roller clamping arms are used for clamping the roller, and then the operation is carried out according to the opposite steps, so that the roller replacement efficiency is greatly improved through a series of automatic operations, the production interruption time is greatly shortened, and the production progress is powerfully guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe processing equipment, and in particular to a roller replacement device for a steel pipe straightening machine. Background Technology

[0002] In the steel pipe production process, the steel pipe straightening machine is a key piece of equipment to ensure the straightness of the steel pipe. As the core component of the steel pipe straightening machine, the roller will affect the straightening effect due to wear and deformation after long-term use, and needs to be replaced regularly.

[0003] Currently, the replacement of rollers in traditional steel pipe straightening machines relies heavily on manual labor. Workers operate the machines using only simple tools such as wrenches. After removing the fixed components, the transportation and subsequent installation are also laborious. The entire process is both time-consuming and labor-intensive. This method has obvious drawbacks: First, it is extremely inefficient and the replacement process is lengthy, resulting in long production interruptions and seriously affecting the production schedule. Second, the rollers are heavy, and the manual handling and installation are labor-intensive, posing safety risks and easily injuring operators, further reducing the replacement efficiency.

[0004] To address this, a roller replacement device for a steel pipe straightening machine is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a roller replacement device for a steel pipe straightening machine, which can solve the problem that the replacement of rollers in existing traditional steel pipe straightening machines relies heavily on manual labor. Workers only use simple tools such as wrenches to operate the machine. After removing the fixed parts, the transportation and subsequent installation are also laborious. The whole process is both time-consuming and labor-intensive. This method has obvious drawbacks: First, the efficiency is extremely low, the replacement process is lengthy, resulting in long production interruptions and seriously affecting the production schedule. Second, the rollers are heavy, and the manual transportation and installation are labor-intensive, posing safety risks and easily injuring operators, which further reduces the replacement efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a roller replacement device for a steel pipe straightening machine, comprising a base, a self-locking universal wheel provided at the bottom of the base, a clamping and replacement mechanism provided at the top of the base, and a controller provided at the rear of the clamping and replacement mechanism;

[0007] The clamping and changing mechanism includes a lifting structure disposed on the top of the base, a translation structure disposed on the front side of the lifting structure, a connecting plate fixedly connected to the front side of the translation structure, a frame bolted to the front side of the connecting plate, an adjusting plate rotatably connected to the top and bottom of the frame, a roller clamping arm fixedly connected to the front side of the adjusting plate, an electric push rod rotatably connected to the top and bottom of the frame, the telescopic end of the electric push rod rotatably connected to the inside of the adjusting plate, and the electric push rod being electrically connected to the controller.

[0008] Preferably, the lifting structure includes a frame fixedly connected to the top of the base, the frame having a lifting groove inside, a lifting motor bolted to the top of the frame, the lifting motor being electrically connected to a controller, and the output end of the lifting motor passing through the top of the frame.

[0009] Preferably, the output end of the lifting motor is fixedly connected to a lead screw, and the bottom of the lead screw is rotatably connected to the top of the base.

[0010] Preferably, the lead screw is threadedly connected to a threaded block on its outer side, the threaded block is slidably connected inside the lifting groove, and the front side of the threaded block is fixedly connected to the rear side of the translation structure.

[0011] Preferably, the translation structure includes a crossbeam fixedly connected to the front side of the threaded block, a swivel groove is provided on the front side of the crossbeam, a translation motor is bolted to the right side of the crossbeam, the translation motor is electrically connected to the controller, and the output end of the translation motor passes through the right side of the crossbeam.

[0012] Preferably, the output end of the translation motor is fixedly connected to a threaded rod, and the surface of the threaded rod is threadedly connected to a translation threaded bracket, the front side of the translation threaded bracket being fixedly connected to the rear side of the connecting plate.

[0013] Preferably, a protective shell is bolted to the top of the frame, and the protective shell is located outside the lifting motor.

[0014] Preferably, a reinforcing pad is bonded to the inner side of the roller clamp arm, and the inner side of the reinforcing pad has anti-slip texture.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The clamping and replacement mechanism provided in this application, through the coordinated operation of the lifting structure and the translation structure, can flexibly adjust the height and horizontal position of the roller clamp arm to ensure that it is precisely positioned outside the roller. After removing the roller fixing components, the operator can easily operate the electric push rod with the help of the controller to drive the adjusting plate to move the roller clamp arm to precisely clamp the roller. Then, the lifting structure is controlled to drive the translation structure, and the roller clamp arm and roller rise and disengage from the straightening machine to complete the convenient removal. Afterward, the roller is moved to the placement area, the clamp arm is released and the old roller is put down. When installing the new roller, the roller clamp arm is used to clamp the roller, and then the operation is carried out in reverse. This series of automated operations greatly improves the efficiency of roller replacement, greatly shortens the production interruption time, and effectively ensures the production schedule. At the same time, it avoids manual high-intensity handling and installation, and effectively reduces safety risks.

[0017] 2. By setting up a base and self-locking casters, this application enables the device to move freely within the workshop and quickly reach different steel pipe straightening machines to carry out roller replacement work, which significantly enhances the applicability and operational flexibility of the device. During replacement operations, the self-locking casters can be locked to ensure the stability of the device, further reduce safety risks, and create a safer working environment for operators. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the roller replacement device for the steel pipe straightening machine of this utility model.

[0019] Figure 2 This is a structural diagram of the clamping and changing mechanism of this utility model;

[0020] Figure 3 This is a structural diagram of the lifting structure of this utility model;

[0021] Figure 4 This is a structural diagram of the translation structure of this utility model;

[0022] Figure 5 This is a structural diagram of the roller clamp arm of this utility model.

[0023] In the diagram: 1. Base; 2. Self-locking caster wheel; 3. Clamping and changing mechanism; 31. Lifting structure; 311. Frame; 312. Lifting groove; 313. Lifting motor; 314. Lead screw; 315. Threaded block; 32. Translation structure; 321. Cross frame; 322. Transfer groove; 323. Translation motor; 324. Threaded rod; 325. Translation threaded frame; 33. Connecting plate; 34. Frame; 35. Adjusting plate; 36. Roller clamp arm; 37. Electric push rod; 4. Controller; 5. Protective shell; 6. Reinforcing pad. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 The present invention provides the following technical solution:

[0026] A roller replacement device for a steel pipe straightening machine includes a base 1, a self-locking caster wheel 2 at the bottom of the base 1, a clamping and replacement mechanism 3 at the top of the base 1, and a controller 4 at the rear of the clamping and replacement mechanism 3.

[0027] The clamping and changing mechanism 3 includes a lifting structure 31 set on the top of the base 1. A translation structure 32 is set on the front side of the lifting structure 31. A connecting plate 33 is fixedly connected to the front side of the translation structure 32. A frame 34 is bolted to the front side of the connecting plate 33. An adjusting plate 35 is rotatably connected to the top and bottom inside the frame 34. A roller clamping arm 36 is fixedly connected to the front side of the adjusting plate 35. An electric push rod 37 is rotatably connected to the top and bottom inside the frame 34. The telescopic end of the electric push rod 37 is rotatably connected to the inside of the adjusting plate 35. The electric push rod 37 is electrically connected to the controller 4.

[0028] In this embodiment: By setting up the clamping and replacement mechanism 3, when it is necessary to replace the roller of the steel pipe straightening machine, the device can be pushed first, and the self-locking casters 2 at the bottom of the base 1 can be used to move the device to a suitable position around the steel pipe straightening machine. Then, the self-locking casters 2 are locked to ensure the stability of the device. The operator uses the controller 4 to control the lifting structure 31 and the translation structure 32 to work together, flexibly adjusting the height and horizontal position of the roller clamping arm 36 so that the roller clamping arm 36 is accurately positioned on the outside of the roller to be replaced. After removing the roller fixing parts, the controller 4 controls the electric push rod 37 to extend and retract, driving the adjusting plate 35 to rotate, which drives the roller clamping arm 36 to accurately clamp the roller. Then, the controller 4 controls the lifting structure 31 to start, driving the translation structure 32 and the roller clamping arm 36 to start. 6. The clamped roller rises, detaching it from the straightener and completing the roller removal. Then, the translation structure 32 and lifting structure 31 are manipulated again to move the roller to the placement area. The electric push rod 37 is controlled to release the roller clamp arm 36, and the old roller is lowered. When installing the new roller, the roller clamp arm 36 is first clamped by the new roller. Then, following the reverse steps of removal, the lifting structure 31 and translation structure 32 are manipulated sequentially by the controller 4 to move the new roller to the installation position on the straightener. Finally, after placement, it is fixed by the fixing component to complete the installation of the new roller. The whole process is highly automated and effectively improves the roller replacement efficiency. On this basis, the roller clamp arm 36 can be further extended and improved to be rotatable or adjustable in angle to further improve its practicality.

[0029] Specifically, such as Figure 3 As shown, the lifting structure 31 includes a frame 311 fixedly connected to the top of the base 1. The frame 311 has a lifting groove 312 inside. A lifting motor 313 is bolted to the top of the frame 311. The lifting motor 313 is electrically connected to the controller 4. The output end of the lifting motor 313 passes through the top of the frame 311.

[0030] Specifically, such as Figure 3 As shown, the output end of the lifting motor 313 is fixedly connected to a lead screw 314, and the bottom of the lead screw 314 is rotatably connected to the top of the base 1.

[0031] Specifically, such as Figure 3As shown, the lead screw 314 is threadedly connected to a threaded block 315 on its outer side. The threaded block 315 is slidably connected inside the lifting groove 312. The front side of the threaded block 315 is fixedly connected to the rear side of the translation structure 32.

[0032] In this embodiment: by setting up a lifting structure 31, when the roller needs to be removed or installed, the controller 4 sends a command to the lifting motor 313. After the lifting motor 313 starts, its output end drives the lead screw 314 to rotate. Since the lead screw 314 is threadedly connected to the threaded block 315, and the threaded block 315 can only slide along the groove in the lifting groove 312, when the lead screw 314 rotates, the threaded block 315 will move vertically along the direction of the lifting groove 312 on the lead screw 314. The front side of the threaded block 315 is fixedly connected to the translation structure 32. Therefore, the lifting of the threaded block 315 drives the translation structure 32, the roller clamping arm 36 and the clamped roller to rise or fall together. This design realizes the precise movement of the roller in the vertical direction. When removing the roller, the roller can be smoothly lifted away from the straightener. When installing the roller, the roller can be accurately lowered to the installation position of the straightener, ensuring the efficiency and accuracy of the roller replacement process in the vertical direction.

[0033] Specifically, such as Figure 4 As shown, the translation structure 32 includes a crossbeam 321 fixedly connected to the front side of the threaded block 315. A sliding groove 322 is provided on the front side of the crossbeam 321. A translation motor 323 is bolted to the right side of the crossbeam 321. The translation motor 323 is electrically connected to the controller 4. The output end of the translation motor 323 passes through the right side of the crossbeam 321.

[0034] Specifically, such as Figure 4 As shown, a threaded rod 324 is fixedly connected to the output end of the translation motor 323, and a translation threaded bracket 325 is threadedly connected to the surface of the threaded rod 324. The front side of the translation threaded bracket 325 is fixedly connected to the rear side of the connecting plate 33.

[0035] In this embodiment: By setting the translation structure 32, when the roller needs to be moved horizontally, the controller 4 sends a signal to the translation motor 323, the translation motor 323 starts, and its output end drives the threaded rod 324 to rotate. The translation threaded frame 325, which is threaded to the surface of the threaded rod 324, will move horizontally along the shift groove 322 on the front side of the cross frame 321 under the rotation of the threaded rod 324. Because the translation threaded frame 325 is fixedly connected to the connecting plate 33, and the connecting plate 33 is connected to the frame 34, and the roller clamping arm 36 is installed on the frame 34, the horizontal movement of the translation threaded frame 325 drives the roller clamping arm 36 and the roller to move horizontally. During the roller replacement process, this horizontal movement function can move the removed roller to the placement area, and can also move the new roller from the placement area to directly above the installation position of the straightening machine during installation, which greatly improves the convenience and efficiency of roller replacement in the horizontal direction.

[0036] Specifically, such as Figure 3 As shown, a protective shell 5 is bolted to the top of the frame 311, and the protective shell 5 is located outside the lifting motor 313.

[0037] Specifically, such as Figure 5 As shown, a reinforcing pad 6 is bonded to the inner side of the roller clamp arm 36, and the inner side of the reinforcing pad 6 is provided with anti-slip texture.

[0038] In this embodiment: by setting a protective shell 5 and a reinforcing pad 6, the protective shell 5 is bolted to the top of the frame 311 and covers the outside of the lifting motor 313, which can effectively prevent external dust, debris and other objects from entering the lifting motor 313, avoid damage to the lifting motor 313 due to foreign objects entering, extend the service life of the lifting motor 313, ensure the stable operation of the lifting structure 31, and thus ensure the reliable operation of the entire roller changing device. In addition, the reinforcing pad 6 bonded to the inner side of the roller clamping arm 36 has anti-slip textures on its inner side, which increases the friction between the roller clamping arm 36 and the roller. When clamping the roller, even if there is oil or other factors affecting the friction on the roller surface, the reinforcing pad 6 and its anti-slip textures can ensure that the roller clamping arm 36 tightly clamps the roller, preventing the roller from slipping during clamping and movement, improving the safety and stability of the operation, and ensuring the smooth progress of the roller changing work.

[0039] Working principle: During the use of the roller changing device of the steel pipe straightening machine, the self-locking casters 2 at the bottom of the base 1 are used to push the device to a suitable working position next to the steel pipe straightening machine. Then, the self-locking casters 2 are locked to ensure that the entire device is stable and reliable during operation. Next, the operator uses the controller 4 to control the lifting structure 31 and the translation structure 32. When the lifting structure 31 is working, the controller 4 sends a command to the lifting motor 313, which starts and drives the lead screw 314 to rotate, and the screw is threadedly connected to the lead screw 314. Under the constraint of the lifting groove 312, the threaded block 315 can only move vertically along the groove, thereby driving the connected translation structure 32, roller clamping arm 36, and the clamped roller to rise or fall together, realizing the precise vertical movement of the roller. When the translation structure 32 is running, the controller 4 sends a signal to the translation motor 323. After the translation motor 323 starts, its output end drives the threaded rod 324 to rotate, causing the translation threaded frame 325, which is threadedly connected to the threaded rod 324, to move horizontally along the shift groove 322 on the front side of the cross frame 321. Finally, the roller clamping arm 36 and the roller move horizontally. During the roller clamping process, after removing the roller fixing components, the controller 4 controls the extension and retraction of the electric push rod 37. The electric push rod 37 drives the adjusting plate 35 to rotate, thereby causing the roller clamping arm 36 to precisely clamp the roller. When removing the old roller, the roller is first moved to a suitable position through the coordinated movement of the lifting structure 31 and the translation structure 32, then raised to remove it from the straightener, and then transferred to the placement area. The electric push rod 37 is then controlled to release the clamping arm and lower the old roller. When installing a new roller, the process is as follows: The reverse process involves using the roller clamp arm 36 to hold the new roller, moving it to the straightener installation position via the lifting and translation structure 32, and finally fixing it in place. This coordinated operation significantly improves roller replacement efficiency, greatly reduces production downtime, and effectively ensures production progress. At the same time, it avoids manual high-intensity handling and installation, effectively reducing safety risks. Furthermore, the roller clamp arm 36 can be further extended and improved to be rotatable or adjustable in angle to further enhance the clamping, replacement, and installation of rollers in different positions.

[0040] 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, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roller replacement device for a steel pipe straightening machine, comprising a base (1), characterized in that: The base (1) is provided with a self-locking universal wheel (2) at the bottom, and a clamping and changing mechanism (3) is provided at the top of the base (1). A controller (4) is provided at the rear of the clamping and changing mechanism (3). The clamping and changing mechanism (3) includes a lifting structure (31) set on the top of the base (1). A translation structure (32) is provided on the front side of the lifting structure (31). A connecting plate (33) is fixedly connected to the front side of the translation structure (32). A frame (34) is bolted to the front side of the connecting plate (33). An adjusting plate (35) is rotatably connected to the top and bottom of the frame (34). A roller clamping arm (36) is fixedly connected to the front side of the adjusting plate (35). An electric push rod (37) is rotatably connected to the top and bottom of the frame (34). The telescopic end of the electric push rod (37) is rotatably connected to the inside of the adjusting plate (35). The electric push rod (37) is electrically connected to the controller (4).

2. The roller replacement device for a steel pipe straightening machine according to claim 1, characterized in that: The lifting structure (31) includes a frame (311) fixedly connected to the top of the base (1). The frame (311) has a lifting groove (312) inside. A lifting motor (313) is bolted to the top of the frame (311). The lifting motor (313) is electrically connected to the controller (4). The output end of the lifting motor (313) passes through the top of the frame (311).

3. The roller replacement device for a steel pipe straightening machine according to claim 2, characterized in that: The output end of the lifting motor (313) is fixedly connected to a lead screw (314), and the bottom of the lead screw (314) is rotatably connected to the top of the base (1).

4. The roller replacement device for a steel pipe straightening machine according to claim 3, characterized in that: The lead screw (314) is threadedly connected to a threaded block (315) on its outer side. The threaded block (315) is slidably connected inside the lifting groove (312). The front side of the threaded block (315) is fixedly connected to the rear side of the translation structure (32).

5. The roller replacement device for a steel pipe straightening machine according to claim 1, characterized in that: The translation structure (32) includes a crossbeam (321) fixedly connected to the front side of the threaded block (315). A sliding groove (322) is provided on the front side of the crossbeam (321). A translation motor (323) is bolted to the right side of the crossbeam (321). The translation motor (323) is electrically connected to the controller (4). The output end of the translation motor (323) passes through the right side of the crossbeam (321).

6. The roller replacement device for a steel pipe straightening machine according to claim 5, characterized in that: The output end of the translation motor (323) is fixedly connected to a threaded rod (324), and the surface of the threaded rod (324) is threadedly connected to a translation threaded bracket (325). The front side of the translation threaded bracket (325) is fixedly connected to the rear side of the connecting plate (33).

7. The roller replacement device for a steel pipe straightening machine according to claim 2, characterized in that: A protective shell (5) is bolted to the top of the frame (311), and the protective shell (5) is located outside the lifting motor (313).

8. The roller replacement device for a steel pipe straightening machine according to claim 1, characterized in that: The inner side of the roller clamp arm (36) is bonded with a reinforcing pad (6), and the inner side of the reinforcing pad (6) is provided with anti-slip texture.

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