Chemical fiber spinning hot roller on-line laser cleaning device

Abstract

The utility model discloses a kind of chemical fiber spinning hot roller online laser cleaning device, comprising: fixed bracket, for fixed hot roller;Laser mobile cleaning assembly, setting on fixed bracket, for moving to different parts of hot roller with laser cleaning hot roller;Rotary mechanism, setting on fixed bracket, for rotating hot roller to make different parts of hot roller with laser mobile cleaning assembly correspond.The utility model utilizes high-energy laser beam to irradiate workpiece surface, makes the dirt, rust spot, coating or residue on surface absorb laser energy and then instantaneously evaporate or generate expansion stress, and stripping under light wave impact, to clean the surface of object of high speed effectively, reach the purpose of clean.After aligning hot roller, clamping hot roller workpiece, laser cleaning can be carried out, so hot roller equipment does not need to be disassembled, improve work efficiency, operation time is short, laser cleaning is small to the loss of equipment, surface is clean after cleaning, and harm to environment pollution and human body is less.

Description

Technical Field

[0001] This utility model relates to the technical field of the chemical fiber industry, specifically to an online laser cleaning device for hot rollers in chemical fiber spinning. Background Technology

[0002] With the rapid development of my country's chemical fiber industry, the level of chemical fiber production technology has been continuously improved. Using methyl terephthalate (DMT) and ethylene glycol (EG) as raw materials, fiber-grade polyethylene terephthalate (BHETO) melt is generated through transesterification and continuous polycondensation. Under certain conditions, after a pre-spinning preparation process, the melt enters the spinning machine. The spinning solution or melt is quantitatively, continuously, and uniformly extruded from the fine holes of the spinneret by a spinning pump (metering pump) to form a fine melt stream. This fine melt stream solidifies in water, coagulation liquid, or air to generate nascent fiber filaments. During this process, the fibers will leave black marks (dirt) on the stainless steel hot rollers or guide rollers. Once these "marks" are formed, they can easily cause the chemical fibers to fray, burr, or even break, affecting the quality of the chemical fibers. Therefore, the machine must be stopped to clean the hot rollers. However, due to time constraints, it is not convenient to disassemble and clean the hot rollers during the shutdown. Therefore, an efficient and environmentally friendly online non-disassembly cleaning method is needed to clean the dirt from the hot rollers installed on the equipment.

[0003] Analysis revealed that the black dirt on the hot rollers was mainly composed of residual catalyst components from the polymerization process, such as antimony, cobalt, and metal oxides, deposited at high temperatures, as well as low-molecular-weight organic components like polyester that coked at high temperatures, forming a stubborn dirt that cannot be cleaned with conventional cleaning agents. Patent document CN107502470A discloses a cleaning agent for hot rollers used in chemical fiber spinning and its preparation method. It uses potassium hydroxide, a complexing component, a corrosion inhibitor component, a special surfactant compound, hydrazine, triethylene glycol, and deionized water as the balance. While using chemical reagents provides high cleaning efficiency, the potassium hydroxide, hydrazine, and other chemical reagents pose certain hazards and pollution risks to human health and the environment. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects of the prior art and provide an online laser cleaning device for hot rollers in chemical fiber spinning, which uses laser cleaning to clean the hot rollers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An online laser cleaning device for hot rollers in chemical fiber spinning includes:

[0007] A mounting bracket is used to secure the hot roller.

[0008] A laser moving cleaning assembly is mounted on the fixed bracket and is used to move relative to the hot roller to laser clean different parts of the hot roller.

[0009] A rotating mechanism, mounted on the fixed support, is used to rotate the hot roller so that different parts of the hot roller correspond to the laser moving cleaning assembly.

[0010] In this invention, the hot roller is fixed by a fixed bracket, and then the hot roller is rotated by a rotating mechanism so that different parts of the hot roller correspond to the laser moving cleaning component. Then, the laser moving cleaning component performs laser cleaning on each part. In this invention, a high-energy laser beam is used to irradiate the surface of the hot roller, so that dirt, rust, coating or residue on the surface absorbs the laser energy and evaporates instantly or generates expansion stress and peels off under the impact of the light wave, thereby removing the adhering substances on the surface of the object to be cleaned at high speed and effectively, and achieving the purpose of cleaning.

[0011] The laser moving cleaning component of this utility model can have various structural forms. Preferably, the laser moving cleaning component includes a cleaning module and a moving module that can drive the cleaning module to move relative to the hot roller. The cleaning module includes a laser emitter for emitting laser to the hot roller and a dust suction hood for absorbing the residue after laser cleaning.

[0012] In this invention, the cleaning module is moved by a moving module to adjust the distance between the laser emitter and the hot roller. In addition, in order to remove the residue after laser cleaning, a dust suction hood can be used for adsorption.

[0013] Preferably, the dust hood includes:

[0014] The first suction pipe has one end facing the hot roller and the other end connected to the laser emitter. The laser emitted by the laser emitter is emitted along the inside of the first suction pipe onto the hot roller.

[0015] The second suction tube has one end connected to the side wall of the first suction tube and the other end connected to the vacuum cleaner.

[0016] A dust suction baffle is disposed inside the first dust suction tube and near the connection between the first dust suction tube and the second dust suction tube. It is used to prevent residue from entering the end of the first dust suction tube connected to the laser emitter, so that the residue can enter the vacuum cleaner through the first dust suction tube and the second dust suction tube. The dust suction baffle is provided with a laser penetration hole for the laser emitted by the laser emitter to pass through.

[0017] In this invention, the first suction pipe of the dust hood is close to the laser cleaning surface of the hot roller, while the second suction pipe is connected to the vacuum cleaner. The vacuum cleaner uses the second suction pipe to adsorb the residues (smoke and ash, etc.) generated by the laser cleaning, thereby reducing harm to the environment and human body.

[0018] Furthermore, in this invention, the dust suction baffle is located near the connection between the first and second suction pipes, which can block and prevent ash generated during laser cleaning from contaminating the lens of the laser emitter, and facilitates the entry of residues into the vacuum cleaner through the first and second suction pipes. Additionally, the dust suction baffle has a laser penetration hole through which the laser beam emitted by the laser emitter passes. Therefore, the dust suction baffle allows the laser beam emitted by the laser emitter to pass through the laser penetration hole and act on the hot roller cleaning surface, while also preventing ash generated during laser cleaning from contaminating the lens of the laser emitter.

[0019] The movable module in this utility model has various structural forms and can be adopted in various forms. As a preferred embodiment, the movable module includes a motor module that drives the cleaning module to move axially relative to the hot roller.

[0020] The rotating mechanism in this utility model has various structural forms. As a preferred embodiment, the rotating mechanism includes:

[0021] Grippers for holding the hot roller;

[0022] A rotation drive module is used to drive the gripper to rotate.

[0023] In this invention, the rotating mechanism uses grippers to hold the hot roller. Once the grippers are positioned at the end of the hot roller, they hold the end of the hot roller and then rotate under the drive of the rotating drive module.

[0024] Preferably, the gripper includes a pneumatic gripper and a transition gripper mounted on the pneumatic gripper; the rotary drive module includes a first transition plate, a second transition plate, and a rotary platform, wherein the pneumatic gripper is mounted on the first transition plate, the first transition plate is mounted on the second transition plate, and the second transition plate is mounted on the rotating part of the rotary platform.

[0025] In this invention, the transition gripper holds the end of the hot roller. When the rotating platform rotates, the stopped hot roller rotates, facilitating laser cleaning of the entire circumferential surface of the hot roller. The transition gripper is mounted on a pneumatic gripper, making it easy to replace different transition grippers to grip hot rollers of different diameters.

[0026] The fixed bracket in this utility model can have various structural forms. As a preferred embodiment, the fixed bracket includes:

[0027] An arc-shaped support portion is arranged along the axial direction of the hot roller to support the hot roller;

[0028] A buffer seat is disposed at the end of the arc-shaped support portion to reduce the buffering force when the arc-shaped support portion supports the hot roller.

[0029] In this invention, the arc-shaped support part can be located below the hot roller to support the hot roller. When the arc-shaped support part extends below the hot roller, the buffer seat abuts against the hot roller mounting surface, which can play a buffering role and protect the hot roller mounting surface from wear caused by the collision of the arc-shaped support part. Moreover, the buffer seat provides a certain support force, making the operation of fixing the rotating hot roller more stable, and thus making laser cleaning more accurate and reliable.

[0030] Preferably, the buffer seat includes a hydraulic buffer, a transition joint, and a support plate connected in sequence.

[0031] Preferably, the buffer seat further includes a floating joint with an offset angle connected between the transition joint and the support plate. In this invention, the hydraulic buffer on the buffer seat provides a buffering force, protecting the hot roller mounting surface from wear caused by impact. The floating joint on the buffer seat has a certain offset angle, protecting against deviations caused by inaccurate alignment of the hot roller's axial direction during installation, facilitating better and more convenient installation. After installation on the hot roller, the buffer seat provides a certain supporting force to the equipment, making the operation of fixing the rotating hot roller more stable, thereby making laser cleaning more precise and reliable.

[0032] In this invention, the number of buffer seats can be set to several. Preferably, two buffer seats are arranged symmetrically. Two buffer seats ensure that the force is evenly distributed.

[0033] The advantages of this utility model compared with the prior art are:

[0034] (1) This utility model utilizes a high-energy laser beam to irradiate the surface of a workpiece, causing dirt, rust, coatings or residues on the surface to absorb laser energy and evaporate instantly or generate expansion stress and peel off under the impact of light waves, thereby quickly and effectively removing the adhering substances on the surface of the object to be cleaned, achieving the purpose of cleaning.

[0035] (2) This utility model can clamp the workpiece after aligning with the hot roller and perform laser cleaning. Therefore, it does not require disassembling the hot roller equipment, which improves work efficiency, shortens operation time, reduces equipment wear and tear during laser cleaning, and results in a smooth surface after cleaning, with less environmental pollution and harm to the human body.

[0036] (3) In this utility model, grippers are used to clamp the workpiece on the hot roller. The grippers are arranged on a rotating platform to realize the rotation of the grippers to drive the hot roller to rotate in a circle. An electric module is used to drive the laser device to move the workpiece on the hot roller axially for cleaning. In addition, a dust collection hood is used to absorb the pollutants generated during laser cleaning, reducing pollution to the environment and human body. In addition, a buffer seat is installed. The buffer seat is adapted to a certain angle of deflection and provides a certain buffer force during installation to prevent collision with the hot roller mounting surface. When this utility model is fixed on the hot roller, the reaction force provided by the buffer seat makes the operation more stable and the laser cleaning more accurate and reliable.

[0037] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of an online laser cleaning device for hot rollers in chemical fiber spinning in this embodiment.

[0040] Figure 2 This is a schematic diagram of the structure of an online laser cleaning device for hot rollers in chemical fiber spinning, taken from another perspective, in this embodiment.

[0041] Figure 3 This is a schematic diagram of the structure of an online laser cleaning device for hot rollers in chemical fiber spinning in this embodiment.

[0042] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0043] Figure 5 for Figure 3 A magnified structural diagram at point B in the middle.

[0044] Figure 6 This is a schematic diagram of the fixed bracket and the rotating mechanism in this embodiment.

[0045] Figure 7 This is a schematic diagram of the laser moving cleaning component in this embodiment.

[0046] Figure 8 This is a schematic diagram of the dust hood in this embodiment.

[0047] Figure 9 This is a structural schematic diagram of the dust hood from another perspective in this embodiment.

[0048] Figure 10 This is a schematic diagram of the buffer seat in this embodiment.

[0049] Figure label:

[0050] 1. Fixed bracket; 11. Arc-shaped support; 12. Buffer seat; 121. Hydraulic buffer; 122. Transition joint; 123. Floating joint; 124. Support plate;

[0051] 2. Laser mobile cleaning assembly; 21. Cleaning module; 211. Laser emitter; 212. Dust hood; 2121. First dust suction pipe; 2122. Second dust suction pipe; 2123. Dust suction baffle; 22. Mobile module;

[0052] 3. Rotation mechanism; 31. Gripper; 311. Transition gripper; 312. Pneumatic gripper; 32. Rotation drive module; 321. First transition plate; 322. Second transition plate; 323. Rotation platform.

[0053] 4. Hot roller. Detailed Implementation

[0054] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0055] like Figures 1-5 As shown, this embodiment is an online laser cleaning device for hot rollers in chemical fiber spinning, comprising:

[0056] Fixed bracket 1 is used to fix the hot roller;

[0057] The laser moving cleaning component 2 is mounted on the fixed bracket and is used to move relative to the hot roller to laser clean different parts of the hot roller.

[0058] The rotating mechanism 3 is mounted on the fixed support and is used to rotate the hot roller so that different parts of the hot roller correspond to the laser moving cleaning assembly.

[0059] In this embodiment, after the hot roller is fixed by a fixed bracket, the hot roller is rotated by a rotating mechanism so that different parts of the hot roller correspond to the laser moving cleaning component. Then, the laser moving cleaning component performs laser cleaning on each part. In this embodiment, a high-energy laser beam is used to irradiate the surface of the hot roller, so that dirt, rust, coating or residue on the surface absorbs the laser energy and evaporates instantly or generates expansion stress and peels off under the impact of the light wave, thereby removing the surface of the object to be cleaned quickly and effectively, and achieving the purpose of cleaning.

[0060] In this embodiment, the laser moving cleaning component can have various structural forms, such as... Figure 7 As shown, in one embodiment, the laser moving cleaning assembly includes a cleaning module 21 and a moving module 22 that can move the cleaning module relative to the hot roller. The cleaning module 21 includes a laser emitter 211 for emitting laser light to the hot roller and a dust collector 212 for collecting the residue after laser cleaning.

[0061] In this embodiment, the cleaning module is moved by the moving module to adjust the distance between the laser emitter and the hot roller. In addition, in order to remove the residue after laser cleaning, a dust suction hood can also be used for adsorption.

[0062] like Figures 8-9 As shown, in one embodiment, the dust hood 212 includes:

[0063] The first suction pipe 2121 has one end facing the hot roller and the other end connected to the laser emitter. The laser emitted by the laser emitter is emitted along the inside of the first suction pipe onto the hot roller.

[0064] The second suction pipe 2122 has one end connected to the side wall of the first suction pipe and the other end connected to the vacuum cleaner.

[0065] A dust suction baffle 2123 is disposed inside the first dust suction tube and near the connection between the first dust suction tube and the second dust suction tube. It is used to prevent residue from entering the end of the first dust suction tube connected to the laser emitter, so that the residue can enter the vacuum cleaner through the first dust suction tube and the second dust suction tube. The dust suction baffle is provided with a laser penetration hole for the laser emitted by the laser emitter to pass through.

[0066] In this embodiment, the first suction pipe of the dust hood is close to the laser cleaning surface of the hot roller, and the second suction pipe is connected to the vacuum cleaner. The vacuum cleaner uses the second suction pipe to adsorb the residues (smoke and ash, etc.) generated by the laser cleaning, thereby reducing harm to the environment and human body.

[0067] In addition, in this embodiment, the dust suction baffle is located near the connection between the first and second suction pipes, which can block and prevent ash generated during laser cleaning from contaminating the lens of the laser emitter, and facilitate the entry of residues into the vacuum cleaner through the first and second suction pipes. Furthermore, in this embodiment, the dust suction baffle has a laser penetration hole through which the laser emitted by the laser emitter passes. Therefore, the dust suction baffle allows the laser beam emitted by the laser emitter to pass through the laser penetration hole and act on the hot roller cleaning surface, while also preventing ash generated during laser cleaning from contaminating the lens of the laser emitter.

[0068] In this embodiment, the moving module can take various structural forms. In one embodiment, the moving module includes a motor module that drives the cleaning module to move axially relative to the hot roller.

[0069] In this embodiment, the rotating mechanism has various structural forms, such as Figure 6 As shown, in one embodiment, the rotating mechanism includes:

[0070] Gripper 31 is used to grip the hot roller;

[0071] The rotation drive module 32 is used to drive the gripper to rotate.

[0072] In this embodiment, the rotating mechanism uses grippers to hold the hot roller. After the grippers are located at the end of the hot roller, they hold the end of the hot roller and then rotate under the drive of the rotating drive module.

[0073] In one embodiment, such as Figure 6 As shown, the gripper includes a pneumatic gripper 312 and a transition gripper 311 mounted on the pneumatic gripper 312; the rotary drive module 32 includes a first transition plate 321, a second transition plate 322 and a rotary platform 323, the pneumatic gripper is mounted on the first transition plate 321, the first transition plate 321 is mounted on the second transition plate 322, and the second transition plate is mounted on the rotating part of the rotary platform.

[0074] In this embodiment, the transition gripper holds the end of the hot roller. When the rotating platform rotates, the stopped hot roller rotates, facilitating laser cleaning of the entire circumferential surface of the hot roller. The transition gripper is mounted on a pneumatic gripper, allowing for easy replacement of different transition grippers to grip hot rollers of different diameters. An air slip ring is positioned on the rotating platform, and when the gripper's circumferential rotation is initiated, the pneumatic gripper's air pipes and sensor electrical signals are communicated with external equipment.

[0075] In this embodiment, the fixed bracket can have various structural forms. In one embodiment, the fixed bracket 1 includes:

[0076] An arc-shaped support portion 11 is arranged along the axial direction of the hot roller to support the hot roller;

[0077] The buffer seat 12 is disposed at the end of the arc-shaped support part and is used to reduce the buffering force when the arc-shaped support part supports the hot roller.

[0078] In this embodiment, the arc-shaped support can be located below the hot roller to support it. When the arc-shaped support extends below the hot roller, the buffer seat abuts against the hot roller mounting surface, which can play a buffering role and protect the hot roller mounting surface from wear caused by the collision of the arc-shaped support. Moreover, the buffer seat provides a certain support force, making the operation of fixing the rotating hot roller more stable, and thus making laser cleaning more accurate and reliable.

[0079] like Figure 10 As shown, in one embodiment, the buffer seat includes a hydraulic buffer 121, a transition joint 122, and a support plate 124 connected in sequence.

[0080] In one embodiment, the buffer seat 12 further includes a floating joint 123 connected between the transition joint and the support plate and having an offset angle. In this embodiment, the hydraulic buffer on the buffer seat provides a buffering force to protect the hot roller mounting surface from wear caused by collision. The floating joint on the buffer seat has a certain offset angle to protect against deviations caused by inaccurate alignment of the hot roller's axial direction during installation, facilitating better and more convenient installation. After being installed on the hot roller, the buffer seat provides a certain supporting force to the equipment, making the operation of fixing the rotating hot roller more stable, thereby making laser cleaning more accurate and reliable.

[0081] In this embodiment, the number of buffer seats can be set to several. In one embodiment, two buffer seats are arranged symmetrically. The two buffer seats ensure that the force is evenly distributed.

[0082] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An online laser cleaning device for a hot spinning roll of synthetic fiber, characterized in that, The utility model relates to a laser cleaning device for hot roller, comprising: a fixing support for fixing a hot roller; a laser moving cleaning assembly arranged on the fixing support for moving relative to the hot roller to clean different parts of the hot roller by laser; a rotating mechanism arranged on the fixing support for rotating the hot roller to make different parts of the hot roller correspond to the laser moving cleaning assembly.

2. The device according to claim 1, wherein the device is characterized by: The laser moving cleaning assembly comprises a cleaning module and a moving module for moving the cleaning module relative to the hot roller, wherein the cleaning module comprises a laser emitter for emitting laser to the hot roller and a dust cover for sucking the residues after laser cleaning.

3. The device according to claim 2, characterized in that, The dust cover comprises: a first dust suction pipe with one end facing the hot roller and the other end connected with the laser emitter, and the laser emitted by the laser emitter is emitted along the first dust suction pipe to the hot roller; a second dust suction pipe with one end connected with the sidewall of the first dust suction pipe and the other end connected with a dust collector; a dust baffle arranged in the first dust suction pipe and close to the connection between the first dust suction pipe and the second dust suction pipe for blocking the residues from entering the end of the first dust suction pipe connected with the laser emitter so that the residues enter the dust collector through the first dust suction pipe and the second dust suction pipe, and the dust baffle is provided with a laser transmission hole for the laser emitted by the laser emitter to pass through.

4. The device according to claim 2, wherein the device is characterized by: The moving module comprises a motor module for moving the cleaning module relative to the hot roller in the axial direction.

5. The device according to claim 1, wherein the device is characterized by: The rotating mechanism comprises: a clamping jaw for clamping the hot roller; a rotating drive module for driving the clamping jaw to rotate.

6. The device according to claim 5, wherein the device is characterized by: The clamping jaw comprises a pneumatic hand jaw and a transition hand jaw mounted on the pneumatic hand jaw, and the rotating drive module comprises a first transition plate, a second transition plate and a rotating platform, wherein the pneumatic hand jaw is mounted on the first transition plate, the first transition plate is mounted on the second transition plate, and the second transition plate is mounted on the rotating part of the rotating platform.

7. The device according to claim 1, wherein the device is characterized by: The fixing support comprises: a circular arc support part arranged along the axial direction of the hot roller for supporting the hot roller; a buffer seat arranged at the end of the circular arc support part for reducing the buffer force when the circular arc support part supports the hot roller.

8. The device according to claim 7, characterized in that, The buffer seat comprises an oil pressure buffer, a transition joint and a support plate connected in sequence.

9. The device according to claim 8, characterized in that, The buffer seat further comprises a floating joint connected between the transition joint and the support plate and having an angle of deflection.

10. The device according to claim 7, wherein the device is characterized by: The buffer seat is symmetrically arranged in two.

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