Quick replacing and connecting device for rolling mill pipeline and quick replacing method

Abstract

The invention provides a rolling mill pipeline rapid replacing and connecting device and a rapid replacing method. The rolling mill pipeline rapid replacing and connecting device comprises a fixing support; the female module is fixedly connected with the fixing support, a female connector is arranged on the female module, a handle is rotationally arranged on the female module, and a guide groove is formed in the handle; the male module is in sliding fit with the fixing support, a male connector and a sliding piece are arranged on the male module, the male connector and the female connector are arranged correspondingly, and the sliding piece is arranged in the guide groove in a sliding mode; in the rotating process of the handle, the sliding piece slides along the guide groove, so that the male module is driven to move in the direction close to or away from the female module, and the male connector and the female connector are completely in butt joint or completely separated; and a locking part is arranged on the fixed bracket and is used for locking the handle after the male joint and the female joint are completely butted. Quick and accurate plugging of the male joint and the female joint is realized, and the production rhythm requirement of quick replacement of a rolling mill can be met.

Description

Technical Field

[0001] This invention relates to the field of quick replacement technology for rolling mill pipelines, specifically to a quick replacement connection device and quick replacement method for rolling mill pipelines. Background Technology

[0002] In the field of materials forming technology, especially in roll forming production, rolls are core working components that need to be replaced promptly after their surface reaches the end of their service life to ensure production efficiency and product quality. In actual production, short-stress rolling mills typically use a whole-stand replacement method, which means that while replacing the rolls, the energy medium pipelines connected to the rolling mill body need to be quickly disconnected and reconnected.

[0003] Currently, the industry generally uses quick-change plates or quick-change connectors to achieve rapid connection and disconnection of pipelines. This requires disassembling and assembling each connector individually or using special tools, which is time-consuming and labor-intensive and cannot meet the production rhythm requirements of rapid changeover in rolling mills. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a quick-change connection device and method for rolling mill pipelines. By driving the male module to move with a handle, the male and female connectors can be quickly and accurately inserted and removed, meeting the production rhythm requirements of rapid changeover in rolling mills.

[0005] To address the aforementioned technical problems, this invention provides a quick-change connection device for rolling mill pipelines, comprising: Fixed bracket; A mother module is fixedly connected to a fixed bracket. A female connector is provided on the mother module. A handle is rotatably provided on the mother module. A guide groove is provided on the handle. The male module is slidably coupled with the fixed bracket. The male module is provided with a male connector and a sliding member. The male connector is arranged correspondingly to the female connector, and the sliding member is slidably disposed in the guide groove. During the rotation of the handle, the slider slides along the guide groove, thereby driving the male module to move closer to or away from the female module, so that the male connector and the female connector are completely connected or completely separated. The fixed bracket is provided with a locking part, which is used to lock the handle after the male connector and the female connector are fully connected.

[0006] In some embodiments, the male module has a plurality of first mounting holes, the male connector is installed in the first mounting holes and rotatably connected to the first mounting holes, and the female module has a plurality of second mounting holes, the female connector is installed in the second mounting holes and rotatably connected to the second mounting holes.

[0007] In some embodiments, a first limiting part is provided at one end of the male connector, and a first limiting member is detachably provided at the other end of the male connector. The first limiting part and the first limiting member are respectively located at both ends of the first mounting hole, and are used to limit the axial movement of the male connector.

[0008] In some embodiments, a second limiting part is provided at one end of the female connector, and a second limiting member is detachably provided at the other end of the female connector. The second limiting part and the second limiting member are respectively located at both ends of the second mounting hole, and are used to limit the axial movement of the female connector.

[0009] In some embodiments, the first limiting member and the second limiting member are snap rings.

[0010] In some embodiments, a guide pin is fixedly provided on the male module, and a guide hole corresponding to the guide pin is provided on the female module.

[0011] In some embodiments, the guide groove is an involute groove, so that when the handle is rotated, the male module moves in a direction perpendicular to the female module.

[0012] In some embodiments, the locking part includes a locking hole formed on the female module, and a safety pin corresponding to the locking hole is provided on the handle. The safety pin is used to lock the handle by inserting it into the locking hole after the male and female connectors are fully mated.

[0013] In some embodiments, one end of the guide groove is open, and the slider enters the guide groove from one end of the guide groove opening. Two locking holes are provided, namely a first locking hole and a second locking hole. When the safety pin is inserted into the first locking hole, the slider is located at the opening of the guide groove. When the safety pin is inserted into the second locking hole, the slider is located at the other end of the guide groove, and the male connector and the female connector are fully mated.

[0014] On the other hand, the present invention provides a method for quick replacement of mill pipelines using the aforementioned quick replacement connection device, comprising: Connect the male and female connectors to the hoses respectively; The mother module is fixedly installed on the fixed bracket; Place the male module on the fixed bracket and insert the slider into the guide groove; Turn the handle to move the male module closer to the female module until the male and female connectors are fully aligned. The handle is locked using the locking mechanism; When it is necessary to change the roll, release the locking part from the handle, turn the handle to make the male module move away from the female module until the guide pin is completely away from the guide hole.

[0015] The beneficial effects of this invention are as follows: 1. This invention enables the rapid and precise insertion and removal of male and female connectors by driving the male module to move via a handle, which can meet the production rhythm requirements of rapid changeover in rolling mills.

[0016] 2. The male and female connectors of the present invention are rotatably connected to the male and female modules respectively, so that the torque of the hose can be released after the hose is connected, avoiding the torque from being transmitted to the connection interface, which may cause sealing failure or loosening of the connector, thus significantly improving the stability and service life of the connection.

[0017] 3. This invention utilizes the lever principle, allowing the operator to easily and effortlessly drive the movement of the male module, enabling multiple male connectors on the module to simultaneously connect or disconnect. Compared to the traditional method of disassembling and assembling connectors one by one or using special tools, this invention significantly reduces the replacement time of rolling mill pipelines and substantially improves operational efficiency.

[0018] 4. This invention features a safety pin and multiple locking holes. When the safety pin is inserted into the first locking hole, the device is in an initial disengaged state; when the handle is rotated to the correct position, the safety pin is inserted into the second locking hole, which not only locks the handle to prevent accidental disengagement due to vibration or other reasons, but also clearly indicates the fully engaged state, avoiding accidents caused by improper operation.

[0019] 5. The male and female connectors of the present invention are axially fixed by a limiting part and a detachable limiting component (such as a snap ring). The structure is simple and easy to disassemble and assemble, which facilitates the quick replacement and maintenance of the male and female connectors, reducing maintenance costs and downtime. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the positions of the male and female modules when the male and female connectors are not connected. Figure 2 This is a schematic diagram showing the positions of the male and female modules when the male and female connectors of the present invention are connected; Figure 3 This is a schematic diagram showing the position of the handle when the male and female connectors of the present invention are not connected; Figure 4 This is a schematic diagram showing the position of the handle when the male and female connectors of the present invention are connected.

[0021] Reference numerals: 1. Handle; 2. Male module; 3. Slider; 4. Female module; 5. Button; 6. Safety pin; 7. Fixing bracket; 8. Guide pin; 9. Male connector; 10. Female connector; 11. Hose; 12. Guide hole. Detailed Implementation

[0022] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0023] like Figure 1 , 3 As shown, the present invention provides a quick-change connection device for rolling mill pipelines, including a fixed bracket 7, a female module 4, a male module 2, and a handle 1.

[0024] like Figure 3 As shown, the mother module 4 has a plate-like structure and is fixedly mounted on the fixed bracket 7. Figure 1 As shown, the female module 4 has multiple second mounting holes for mounting the female connector 10. The female connector 10 is installed in the second mounting holes and is rotatably connected to them. To prevent axial movement of the female connector 10, a second limiting part (such as an integrally formed flange or bolt) is provided at the end of the female connector 10 away from the male module 2, and the end of the female connector 10 near the male module 2 is axially limited by a detachable second limiting component (such as a snap ring). The female module 4 also has multiple guide holes 12, which are axially perpendicular to the female module 4.

[0025] like Figure 3 As shown, male module 2 has a plate-like structure and can be slidably placed on the fixed bracket 7. Figure 1 As shown, the male module 2 has multiple first mounting holes corresponding one-to-one with multiple second mounting holes for mounting the male connector 9. The male connector 9 is installed in the first mounting holes and is rotatably connected to the first mounting holes. Similarly, the end of the male connector 9 away from the female module 4 is provided with a first limiting part, and the end of the male connector 9 near the female module 4 is axially limited by a detachable first limiting component (such as a snap ring). The male module 2 is also fixedly provided with a guide pin 8 that mates with the guide hole 12. When the male module 2 moves toward the female module 4, the guide pin 8 first inserts into the guide hole 12, which serves to guide and initially position, ensuring that the male connector 9 and the female connector 10 can be accurately aligned. The male module 2 is also fixedly provided with a sliding member 3.

[0026] The male connector 9 and the female connector 10 are provided with annular grooves, and the retaining ring can be locked in the annular grooves.

[0027] like Figure 3 As shown, handle 1 includes a plate-shaped handle body and a handle. The handle body of handle 1 is rotatably mounted on the female module 4. A guide groove, which is an involute groove, is provided on the handle body. A slider 3 is slidably placed within this guide groove. When handle 1 is rotated, the slider 3 slides within the guide groove. Because the guide groove's trajectory is an involute, the slider 3 causes the male module 2 to move linearly along the fixed bracket 7 in a direction perpendicular to the female module 4 (i.e., towards or away from the female module 4). The involute groove design provides a larger displacement velocity in the initial stage of rotation and a larger clamping force in the later stages of docking.

[0028] Two handles 1 can be provided, located on the sides of the male module 2 and the female module 4 respectively. Sliders 3 are provided on both sides of the male module 2. The two sliders 3 are slidably arranged in the guide grooves of the two handles 1, which ensures the stability of the sliding of the male module 2.

[0029] like Figure 1 As shown, a locking part is provided on the female module 4, which is used to lock the handle 1 after the male connector 9 and the female connector 10 are fully mated. In some embodiments, the locking part includes a first locking hole and a second locking hole formed on the female module 4, and a safety pin 6 and a button 5 are provided on the handle 1. The safety pin 6 is extended and retracted by the button 5. Figure 3 As shown, when the device is in the initial disengaged state, the safety pin 6 can be inserted into the first locking hole. At this time, the slider 3 is located at the open end of the guide groove, which facilitates the initial installation and positioning of the male module 2. Figure 4 As shown, when the handle 1 is rotated to the position and the male connector 9 and the female connector 10 are fully connected, the safety pin 6 is inserted into the second locking hole to lock the handle 1, preventing the handle 1 from rotating due to vibration or other reasons, and ensuring the reliability of the connection between the male connector 9 and the female connector 10.

[0030] It should be noted that there are several ways to control the safety pin 6 with button 5. For example, the safety pin 6 can be slidably mounted inside the handle 1 and fitted with a spring. One end of the spring rests against the handle 1, and the other end rests against the limiting ring of the safety pin 6. Without external force, the spring will push the safety pin 6 out of the handle 1. The rear end of the safety pin 6 has a bevel. Button 5 is slidably mounted on the handle 1, and the front end of button 5 has a bevel that matches the bevel of the safety pin 6. By moving button 5, the spring force can be overcome to retract the safety pin 6.

[0031] The present invention also provides a quick-change method for rolling mill pipelines using the above-mentioned device, comprising the following steps: S1. According to the pipeline required by the rolling mill, connect the corresponding number of male connectors 9 and female connectors 10 to the hoses 11 respectively. Use retaining devices such as snap rings to install and fix the male connectors 9 and female connectors 10 on the male module 2 and female module 4 respectively, ensuring that they can rotate freely but cannot move axially.

[0032] S2. Secure the female module 4, equipped with the female connector 10, to the fixed bracket 7 using bolts. Place the male module 2, equipped with the male connector 9, on the fixed bracket 7, and insert the slider 3 on the male module 2 into the guide groove from the open end of the guide groove. At this time, the safety pin 6 is located in the first locking hole, fixing the handle 1 in this initial position.

[0033] S3. The operator turns handle 1, causing the guide groove on handle 1 to move the sliding member 3, thereby smoothly bringing the male module 2 closer to the female module 4. During the movement, the guide pin 8 first inserts into the guide hole 12 for precise guidance. Continuing to turn handle 1, the male connector 9 and female connector 10 gradually approach and finally fully align. After handle 1 is fully turned, button 5 is pressed, and the safety pin 6 inserts into the second locking hole, locking handle 1. At this point, the rapid connection of all pipelines is complete.

[0034] When it is necessary to change the roll, the operator presses button 5 to disengage the safety pin 6 from the second locking hole, thus releasing the lock on handle 1. Then, the handle 1 is rotated in the opposite direction, and the male module 2 moves away from the female module 4 under the action of the slider 3. The male connector 9 and the female connector 10 separate, and the guide pin 8 disengages from the guide hole 12. When the male module 2 returns to its initial position, the safety pin 6 can be reinserted into the first locking hole for future use.

[0035] The above structure and method enable rapid, reliable, and labor-saving replacement of rolling mill pipelines.

[0036] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A quick-change connection device for rolling mill pipelines, characterized in that: include: Fixed bracket (7); The mother module (4) is fixedly connected to the fixed bracket (7), and a female connector (10) is provided on the mother module (4). A handle (1) is rotatably provided on the mother module (4), and a guide groove is provided on the handle (1). Male module (2), which is slidably engaged with fixed bracket (7), male connector (9) and sliding member (3) are provided on the male module (2), the male connector (9) is arranged correspondingly with female connector (10), and the sliding member (3) is slidably disposed in the guide groove; During the rotation of the handle (1), the slider (3) slides along the guide groove, thereby driving the male module (2) to move closer to or further away from the female module (4), so that the male connector (9) and the female connector (10) are completely connected or completely separated. The fixed bracket (7) is provided with a locking part, which is used to lock the handle (1) after the male connector (9) and the female connector (10) are fully connected.

2. The quick-change connection device for rolling mill pipelines according to claim 1, characterized in that: The male module (2) has multiple first mounting holes, the male connector (9) is installed in the first mounting holes and rotatably connected to the first mounting holes, the female module (4) has multiple second mounting holes, the female connector (10) is installed in the second mounting holes and rotatably connected to the second mounting holes.

3. The quick-change connection device for rolling mill pipelines according to claim 2, characterized in that: One end of the male connector (9) is provided with a first limiting part, and the other end of the male connector (9) is detachably provided with a first limiting member. The first limiting part and the first limiting member are located at the two ends of the first mounting hole, respectively, and are used to restrict the axial movement of the male connector (9).

4. The quick-change connection device for rolling mill pipelines according to claim 3, characterized in that: One end of the female connector (10) is provided with a second limiting part, and the other end of the female connector (10) is detachably provided with a second limiting member. The second limiting part and the second limiting member are respectively located at both ends of the second mounting hole, and are used to restrict the axial movement of the female connector (10).

5. The quick-change connection device for rolling mill pipelines according to claim 4, characterized in that: The first and second limiting components are snap rings.

6. The quick-change connection device for rolling mill pipelines according to any one of claims 1 to 5, characterized in that: The male module (2) is fixedly provided with a guide pin (8), and the female module (4) is provided with a guide hole (12) corresponding to the guide pin (8).

7. The quick-change connection device for rolling mill pipelines according to any one of claims 1 to 5, characterized in that: The guide groove is an involute groove, which causes the male module (2) to move in a direction perpendicular to the female module (4) when the handle (1) is rotated.

8. The quick-change connection device for rolling mill pipelines according to any one of claims 1 to 5, characterized in that: The locking part includes a locking hole on the female module (4), and a safety pin (6) corresponding to the locking hole is provided on the handle (1). The safety pin (6) is used to lock the handle (1) after the male connector (9) and the female connector (10) are fully mated.

9. The quick-change connection device for rolling mill pipelines according to any one of claims 1 to 5, characterized in that: One end of the guide groove is open, and the slider (3) enters the guide groove from one end of the guide groove opening. Two locking holes are provided, namely the first locking hole and the second locking hole. When the safety pin (6) is inserted into the first locking hole, the slider (3) is located at the opening of the guide groove. When the safety pin (6) is inserted into the second locking hole, the slider (3) is located at the other end of the guide groove, and the male connector (9) and the female connector (10) are fully connected.

10. A method for quick-change of mill pipelines using the quick-change connection device for mill pipelines according to any one of claims 1 to 9, characterized in that: include: Connect the male connector (9) and the female connector (10) to the hose (11) respectively; The mother module (4) is fixedly installed on the fixed bracket (7); Place the male module (2) on the fixed bracket (7) and insert the slider (3) into the guide groove; Rotate the handle (1) to move the male module (2) toward the female module (4) until the male connector (9) and the female connector (10) are fully connected; The handle (1) is locked using the locking mechanism; When it is necessary to replace the roll, release the locking part from the handle (1), turn the handle (1) so that the male module (2) moves away from the female module (4) until the guide pin (8) completely leaves the guide hole (12).

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