Abrasive cloth joint laser edging processor and edging method thereof

Abstract

The invention discloses an abrasive cloth joint laser edging processor and an edging method thereof, a belt conveyor is arranged on a rack, and laser heat treatment equipment, a gluing machine, a dryer and a fiber adhesive tape pasting machine are sequentially arranged on the rack in the advancing direction of the belt conveyor; and the belt conveyor, the laser heat treatment equipment, the gluing machine, the drying machine and the fiber adhesive tape pasting machine are controlled by the PLC to work in a coordinated manner. According to the edge grinding processor, laser heat treatment equipment is used for replacing a grinding head of common edge grinding equipment to grind the edge of an abrasive belt joint, on one hand, a large amount of dust is avoided, and the working environment is facilitated; secondly, the abrasive belt auxiliary materials are carbonized at high temperature by means of laser, the shape of a carbonized area is accurate, controllable and attractive, the flatness of the auxiliary materials is good, and thirdly, the distance between a laser source and the abrasive belt can be adjusted to adapt to the auxiliary materials with different thicknesses on the abrasive belt; the abrasive belt joint production process is controllable in quality, stable in quality, convenient to operate and high in edge grinding efficiency. The production process of the method is controllable and reliable in quality.

Description

Technical Field

[0001] The invention relates to the technical field of emery cloth joint processing, in particular to an emery cloth joint laser edge grinding processing machine and an edge grinding method thereof. Background Art

[0002] Sanding belt (emery cloth) is a special abrasive product. Because there is no fixed size, the circumference of the sanding belt needs to be adjusted according to the size of the user's equipment. The quality of the sanding belt joint is related to the tensile strength of the sanding belt when working on the machine. The commonly used sanding belt joint methods are: flat joint and overlap joint, or butt joint and lining joint. The treatment of the joint is the top priority in the sanding belt joint process. In order to avoid leaving marks at the joint, it is necessary to remove the abrasive particles at the joint, which is also called edge grinding. Generally, the mortar layer or slurry layer at the sanding belt joint is removed to ensure that the joint is firmly bonded and of moderate thickness. In the process of edge grinding, the process of removing abrasives generally uses a diamond grinding wheel, while the process of grinding off the binder and part of the base material uses a sanding belt. Sanding belts or wire brushes can be used to grind the slurry layer on the back.

[0003] The existing edge grinding equipment generally has 4 grinding heads for lower joint edge grinding: two diamond grinding wheels, one positive sanding belt, one oblique sanding belt, and if you add the glue coating head, it will be 5. The upper joint edge grinding generally has 3 grinding heads, one sanding belt, one wire brush, one diamond grinding wheel (for grinding the positive abrasive), and a glue coating head, which is 4. However, when this kind of edge grinding equipment is working, because the grinding head grinding the sanding belt will generate a lot of dust, and it is difficult to control the grinding depth. If you are not careful, it will be over-grinded and cause the sanding belt to be scrapped. It is difficult to operate and inefficient. Summary of the invention

[0004] The purpose of the present invention is to provide an abrasive cloth joint laser edge grinding processing machine and an edge grinding method thereof, so as to solve the problems that the existing edge grinding equipment will be divided during operation, and is difficult to operate and has low efficiency during use.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A laser edge grinding machine for sandpaper joints comprises a frame and a belt conveyor arranged on the frame. Along the forward direction of the belt conveyor, laser heat treatment equipment, a glue coating machine, a dryer and a fiber tape applicator are arranged on the frame in sequence. The belt conveyor, the laser heat treatment equipment, the glue coating machine, the dryer and the fiber tape applicator work in a coordinated manner under the control of a PLC controller.

[0006] A further technical solution is that a cleaning station is provided between the laser heat treatment equipment and the glue coating machine.

[0007] A further technical solution is that a vacuum cleaner is arranged on the cleaning station.

[0008] A further technical solution is: the laser heat treatment equipment is a fiber laser, and the working end of the fiber laser faces the working surface of the emery cloth.

[0009] A further technical solution is: the glue coating machine is a roller type glue coating machine.

[0010] A further technical solution is: the drying machine is a hot air blower, and the blowing end of the hot air blower faces the glue-coated surface of the emery cloth.

[0011] A further technical solution is: the fiber tape applying machine is a laminating machine.

[0012] A laser edge grinding method for an abrasive cloth joint, using a laser edge grinding machine, comprises the following steps: S1. Cut a certain length of abrasive belt and place it on the belt conveyor, with the abrasive surface facing upwards. Press the joint tightly on the belt conveyor, and pay attention to avoid the part to be laser processed. S2. According to the thickness of the auxiliary material on the abrasive belt and the forward speed of the abrasive belt, adjust the output power of the laser heat treatment equipment, the height of the laser head and the laser focal length, and require the surface auxiliary material temperature on the abrasive belt joint to reach 800-1000°C for carbonization treatment until the surface auxiliary material is carbonized and blackened; In order to protect the abrasive belt base fabric, at least a certain thickness of auxiliary materials on the bottom layer of the abrasive belt should be kept from being carbonized; S3, cool the temperature of the sand belt in S2, clean up the auxiliary materials after high-temperature carbonization, and keep the temperature at 40-50°C; S4, use a glue coating machine to apply glue to the sanding belt joint in S3; S5, using a dryer to dry and heat the glue on the sanding belt joint in S4, the glue penetrates into the sanding belt joint and has a certain viscosity; S6. Use a fiber tape applicator to apply the fiber tape to the abrasive belt joint in S5 and press it tightly.

[0013] A further technical solution is: in S2, a certain pressing length is reserved for the abrasive cloth joint, and the abrasive cloth is pressed forward and backward along the advancing direction of the abrasive belt.

[0014] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: The present invention proposes a laser edge grinding machine for sand cloth joints. The edge grinding machine uses laser heat treatment equipment to replace the grinding head of general edge grinding equipment to grind the sand belt joints. First, it avoids the generation of a large amount of dust, which is beneficial to the working environment; second, with the help of laser high-temperature carbonization of the sand belt auxiliary material, the shape of the carbonized area is accurately controllable and beautiful, and the auxiliary material has good flatness; third, the distance between the laser source and the sand belt can be adjusted to adapt to the auxiliary materials of different thicknesses on the sand belt; the quality of the sand belt joint production process is controllable, the quality is stable, the operation is convenient, and the edge grinding efficiency is high.

[0015] This edge grinding method uses laser thickness carbonization to remove excess auxiliary materials of the emery cloth. The carbonized slurry layer auxiliary materials are brittle and easy to clean, so as to solve the problems of uneven sand particles and uneven thickness of the cloth base caused by grinding in traditional equipment, poor flatness of auxiliary materials, and troublesome and dusty slurry layer grinding. In the case of the same substrate, there is no need for frequent machine adjustments, which improves production efficiency and ensures product quality. The production method of the equipment is scientific and reliable, the quality of the production process is controllable, the quality is stable and balanced, and the processed emery cloth joints have high use strength and beautiful appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic structural diagram of an abrasive cloth joint laser edge grinding machine.

[0017] Figure 2 For the present invention Figure 1 The structural block diagram of .

[0018] Figure numerals: 1. Frame; 2. Belt conveyor; 3. Laser heat treatment equipment; 4. Glue coating machine; 5. Drying machine; 6. Fiber tape applying machine; 7. PLC controller. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Embodiment 1: In this embodiment, Figure 1 and Figure 2 As shown, a laser edge grinding machine for sandpaper joints includes a frame 1 and a belt conveyor 2 arranged on the frame 1. Along the forward direction of the belt conveyor 2, a laser heat treatment device 3, a glue coating machine 4, a dryer 5 and a fiber tape applicator 6 are arranged on the frame 1 in sequence. The belt conveyor 2, the laser heat treatment device 3, the glue coating machine 4, the dryer 5 and the fiber tape applicator 6 work in a coordinated manner under the control of a PLC controller 7.

[0026] Under the coordinated control of the PLC controller 7, the abrasive belt moves forward with the belt conveyor 2 on the frame 1, passing through the high temperature zone generated by the laser heat treatment equipment 3. Under the same transmission speed, the thicker the auxiliary material on the abrasive belt, the greater the required laser power coefficient, or the closer the laser source is to the abrasive belt, so as to achieve carbonization of a certain thickness of auxiliary material on the abrasive belt. The carbonized auxiliary material is convenient for later peeling. Except for some residues that cannot be removed, only the abrasive belt base cloth is retained as much as possible. For example, the 36th zirconium corundum cloth base is subjected to 800-1000℃ high temperature treatment (dissolution, gasification and carbonization) through the laser heat treatment equipment 3 at a forward speed of 9 meters / minute. The excess auxiliary materials (black in color) on the abrasive belt base are protected to the maximum extent by precisely controlling the transmission speed and the dissolving thickness of the auxiliary materials of the abrasive belt, and only carbonizing the auxiliary materials (glue and filler) so that the auxiliary materials are separated from the abrasive cloth base after carbonization. Then, the carbonized auxiliary materials (brittle and broken into powder) on the abrasive belt are cleaned off manually or with existing cleaning equipment (such as a roller brush or a wire brush, etc.) to prepare for glue coating. At this time, when passing through the glue coating machine 4, the glue is coated on the auxiliary material cleaning part of the abrasive belt, and then dried by the dryer 5. Finally, the glue coating part of the fiber tape and the abrasive belt is connected by the fiber tape applicator 6, and the abrasive cloth joint processing work is completed. The equipment uses laser thickness determination and carbonization to remove excess auxiliary materials of the emery cloth to solve the problems of uneven sand particles, uneven thickness of the cloth base, and poor flatness of the auxiliary materials in traditional equipment. In the case of the same substrate, there is no need to frequently adjust the machine, which improves production efficiency and ensures product quality. The production method of the equipment is scientific and reliable, the quality of the production process is controllable, the quality is stable and balanced, the processed emery cloth joints have high strength, beautiful appearance, and the joint tension is 220KG-280KG.

[0027] Preferably, a cleaning station is provided between the laser heat treatment equipment 3 and the glue coating machine 4 .

[0028] Workers can use hand-held brushes to clean the sanding belts that have been treated with laser high temperature at the cleaning station, or use existing cleaning equipment (such as electric roller brushes or electric wire roller brushes, etc.) at the cleaning station to clean the carbonized auxiliary materials on the sanding belts to prepare for the subsequent gluing.

[0029] Preferably, a vacuum cleaner is provided at the cleaning station.

[0030] The vacuum cleaner is an industrial vacuum cleaner that can collect a small amount of dust generated when cleaning the carbonized auxiliary materials on the sanding belt to prevent dust from occurring.

[0031] Preferably, the laser heat treatment equipment 3 is a fiber laser, and the working end of the fiber laser faces the working surface of the emery cloth.

[0032] Preferably, the glue coating machine 4 is a roller glue coating machine.

[0033] Preferably, the drying machine 5 is a hot air blower, and the blowing end of the hot air blower faces the glue-coated surface of the emery cloth.

[0034] Preferably, the fiber tape applicator 6 is a laminating machine.

[0035] The fiber tape (sand belt butt-joint tape or sand belt flat-joint tape or sand belt joint tape or splicing tape) is rolled up on the roll stand of the laminating machine and applied to the glue-coated part of the sand belt.

[0036] Embodiment 2: A laser edge grinding method for an abrasive cloth joint, using a laser edge grinding machine, comprises the following steps: S1. Cut a certain length of abrasive belt and place it on the belt conveyor, with the abrasive surface facing upwards. Press the belt joint tightly on the belt conveyor, and pay attention to avoid the part to be laser processed. S2. According to the thickness of the auxiliary material on the abrasive belt and the forward speed of the abrasive belt, adjust the output power of the laser heat treatment equipment, the height of the laser head and the laser focal length, and require the surface auxiliary material temperature on the abrasive belt joint to reach 800-1000°C for carbonization treatment until the surface auxiliary material is carbonized and blackened; In order to protect the abrasive belt base fabric, at least a certain thickness of auxiliary materials on the bottom layer of the abrasive belt should be kept from being carbonized; S3, cool the temperature of the sand belt in S2, clean up the auxiliary materials after high-temperature carbonization, and keep the temperature at 40-50°C; S4, use a glue coating machine to apply glue to the sanding belt joint in S3; S5, using a dryer to dry and heat the glue on the sanding belt joint in S4, the glue penetrates into the sanding belt joint and has a certain viscosity; S6. Use a fiber tape applicator to apply the fiber tape to the abrasive belt joint in S5 and press it tightly.

[0037] First, place the abrasive surface (also called slurry surface) of the sanding belt facing up on the belt conveyor, fix the sanding belt joint, and then use laser heat treatment equipment to heat the sanding belt joint. At 800-1000°C, the auxiliary materials (a mixture of abrasive and glue, etc.) on the sanding belt are rapidly heated to dissolve, gasify and carbonize. The minimum requirement is the surface layer of the auxiliary materials. For the sanding belt, the top layer should be blackened. Here, the conveying speed of the belt conveyor should be controlled to prevent the sanding belt base cloth from burning through. Generally speaking, not all slurry layers will be carbonized. A certain thickness of normal auxiliary materials will be retained on the sanding belt base cloth, which can be used as a barrier layer or protective layer to protect the base cloth. After the auxiliary materials are carbonized, they become brittle and are very easy to crush and clean up. The laser head can be adjusted according to the requirements. The parameters (such as output power, height of laser head and focal length of laser) are adjusted to adapt to the edge grinding of slurry layers of various thicknesses. The edge grinding time of slurry layers of various thicknesses is not much different and is very fast. The edge grinding difficulty is extremely low and it is extremely convenient and fast. The edge grinding area and shape are easy to control and the flatness is extremely high. The quality of edge grinding of abrasive belt joints is stable and controllable. After cleaning up the carbonized auxiliary materials, the abrasive belt joint can be placed at 40-50℃, and glue can be rolled with glue using a glue coating machine. Finally, the glue can be partially dried in a dryer to save the drying time of the glue during docking. Moreover, the glue surface will not solidify too quickly at a certain temperature, which is conducive to the abrasive belt base cloth to fully absorb the glue. The fiber tape is applied to the semi-dry glue surface of the abrasive belt joint with the help of an applicator to complete the abrasive belt joint processing.

[0038] It is worth noting that an elastic rod for pressing the belt joint can be provided on the belt conveyor to prevent the belt from deviating, make the belt joint flat, ensure that the laser source of the laser heating equipment is aligned with the belt joint and the belt is evenly and fully heated.

[0039] Preferably, in S2, a certain pressing length is reserved for the abrasive cloth joint, and the abrasive cloth is pressed forward and backward along the advancing direction of the abrasive belt.

[0040] The reserved length of the emery cloth joint is to facilitate tightening and to play a fault-tolerant role.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser edge grinding machine for sandpaper joints, comprising a frame (1) and a belt conveyor (2) arranged on the frame (1), characterized in that: Along the forward direction of the belt conveyor (2), a laser heat treatment device (3), a glue coating machine (4), a drying machine (5) and a fiber tape applying machine (6) are arranged in sequence on the frame (1), and the belt conveyor (2), the laser heat treatment device (3), the glue coating machine (4), the drying machine (5) and the fiber tape applying machine (6) work in a coordinated manner through the control of a PLC controller (7).

2. The laser edge grinding machine for abrasive cloth joints according to claim 1, characterized in that: A cleaning station is provided between the laser heat treatment equipment (3) and the glue coating machine (4).

3. The laser edge grinding machine for abrasive cloth joints according to claim 2 is characterized in that: A dust collector is provided on the cleaning station.

4. The laser edge grinding machine for abrasive cloth joints according to claim 1, characterized in that: The laser heat treatment equipment (3) is a fiber laser, and the working end of the fiber laser faces the working surface of the emery cloth.

5. The laser edge grinding machine for abrasive cloth joints according to claim 1, characterized in that: The glue coating machine (4) is a roller-type glue coating machine.

6. The laser edge grinding machine for abrasive cloth joints according to claim 1, characterized in that: The drying machine (5) is a hot air blower, and the blowing end of the hot air blower faces the glue-coated surface of the emery cloth.

7. The laser edge grinding machine for abrasive cloth joints according to claim 1, characterized in that: The fiber tape applying machine (6) is a laminating machine.

8. A laser edge grinding method for abrasive cloth joints, characterized in that: Using the laser edge grinding machine as described in any one of claims 1 to 7 comprises the following steps: S1. Cut a certain length of abrasive belt and place it on the belt conveyor, with the abrasive surface facing upwards. Press the belt joint tightly on the belt conveyor, and pay attention to avoid the part to be laser processed. S2. According to the thickness of the auxiliary material on the abrasive belt and the forward speed of the abrasive belt, adjust the output power of the laser heat treatment equipment, the height of the laser head and the laser focal length, and require the surface auxiliary material temperature on the abrasive belt joint to reach 800-1000°C for carbonization treatment until the surface auxiliary material is carbonized and blackened; In order to protect the abrasive belt base fabric, at least a certain thickness of auxiliary materials on the bottom layer of the abrasive belt should be kept from being carbonized; S3, cool the temperature of the sand belt in S2, clean up the auxiliary materials after high-temperature carbonization, and keep the temperature at 40-50°C; S4, use a glue coating machine to apply glue to the sanding belt joint in S3; S5, using a dryer to dry and heat the glue on the sanding belt joint in S4, the glue penetrates into the sanding belt joint and has a certain viscosity; S6. Use a fiber tape applicator to apply the fiber tape to the abrasive belt joint in S5 and press it tightly.

9. The laser edge grinding method for abrasive cloth joints according to claim 8, characterized in that: In S2, a certain pressing length is reserved for the abrasive cloth joint, and the abrasive cloth is pressed forward and backward along the advancing direction of the abrasive belt.

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