Laser direct engraving machine and engraving process

Abstract

The invention relates to a laser direct carving machine and a carving process, a fixing device for fixing a plate roller is installed on a machine base, a laser device is arranged on the other side of the fixing device, the laser device is connected to the machine base in a sliding mode through a stepping motor, the laser device comprises a laser frame, and more than two laser heads are arranged in the laser frame. According to the laser direct carving machine, the multiple laser heads are used for carrying out overlapping carving, one depth is completed together, the carving depth is larger, and the carving efficiency is higher.

Description

Technical Field

[0001] The present application relates to a laser direct engraving machine and an engraving process, belonging to the technical field of engraving equipment. Background Art

[0002] Laser machines are cylinder and flatbed engraving equipment designed for different types of products, such as embossing, gravure printing, micro-engraving, ceramic roller engraving, leather and rubber applications, etc.

[0003] The laser machine adopts advanced engraving control system, combined with mature optical path control system and stable mechanical design and structure to ensure the production of high-quality laser mesh cells and maintain the consistency of the dots.

[0004] The existing laser direct engraving machine uses two sets of laser equipment when engraving the plate roller. The two sets of laser equipment are connected and linked to perform engraving work. The maximum power of each set of laser equipment is 700w, and the working efficiency is low. There will be errors in the connection and engraving of the two sets of laser equipment. The laser equipment controls the displacement through the lead screw electric screw, resulting in limited accuracy. After engraving, it needs to be corroded with chemicals.

[0005] Therefore, in order to solve the above technical problems, it is necessary to provide a laser direct engraving machine and an engraving process to overcome the above defects in the prior art. Summary of the invention

[0006] The purpose of the present invention is to provide a laser direct engraving machine and an engraving process with high engraving precision and deep engraving depth.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a laser direct engraving machine, including a machine base, a fixing device for fixing a plate roller is installed on the machine base, a laser device is provided on the other side of the fixing device, the laser device is slidably connected to the machine base through a stepper motor, the laser is set to engrave the plate roller, the laser device includes a laser frame, and more than two laser heads are arranged in the laser frame. When working, multiple laser heads simultaneously engrave the same position of the plate roller.

[0008] By adopting the above technical solution, multiple laser heads perform multiple engravings and jointly complete one depth, making the engraving deeper and more efficient. The stepper motor is used to move the laser setting, making the engraving displacement accurate.

[0009] A laser direct engraving machine of the present invention is further configured as follows: a through slot is provided on the laser frame for the laser head to emit laser, an air guide pipe is installed on the side of the through slot away from the laser head, the air guide pipe is in a truncated cone shape, and an air guide member is provided in the laser frame for blowing toward the air guide pipe.

[0010] By adopting the above technical solution, the air guide member 1 can blow the dust in the laser frame out of the laser frame, thereby preventing the dust from staying on the laser head and affecting the working efficiency.

[0011] A laser direct engraving machine of the present invention is further configured as follows: a second air guide member is installed outside the laser frame, and the second air guide member blows toward a side of the air guide duct away from the laser head.

[0012] By adopting the above technical solution, the second air guide member can prevent dust from staying on the air guide pipe, thereby improving the working efficiency of the laser head.

[0013] A laser direct engraving machine of the present invention is further configured as follows: the fixing device includes a rotating device 1 fixedly connected to the machine base and a rotating device 2 slidably connected to the machine base, the position of the rotating device 1 corresponds to the position of the rotating device 2, and the rotating device 1 is used to drive the plate roller to rotate.

[0014] By adopting the above technical solution, the movable setting of the rotating device 2 can make the device adapt to plate rollers of different lengths. The rotating device 1 and the rotating device 2 can fix the plate roller and drive the plate roller to rotate.

[0015] A laser direct engraving machine of the present invention is further configured as follows: a folded dustproof cloth is installed on the second rotating device, and the folded dustproof cloth is laid on the track on which the second rotating device moves.

[0016] By adopting the above technical solution, the folded dustproof cloth can be unfolded and compressed together with the rotating device 2, so as to prevent dust from falling onto the track and affecting the movement of the rotating device 2.

[0017] A laser direct engraving machine of the present invention is further configured to include a water cooling box connected to the laser head.

[0018] By adopting the above technical solution, the water cooling box can keep the temperature of the laser head stable, avoiding the laser head from being overheated and affecting the working efficiency of the laser head.

[0019] A laser direct engraving machine of the present invention is further configured as follows: a generator of the laser head is located in the liquid of the water cooling box.

[0020] By adopting the above technical solution, the temperature of the water cooling box is 20~25°C, which prevents water droplets on the lens from bursting during operation.

[0021] A laser direct engraving machine of the present invention is further configured as follows: the machine base is made of marble.

[0022] By adopting the above technical solution, marble is more stable, stress-free and less prone to deformation compared to common castings.

[0023] The engraving process of a laser direct engraving machine of the present invention comprises the following steps: 1) Place the plate roller on the fixing device for fixing; 2) Start the stepper motor to move the laser device to the appropriate position; 3) Start multiple upper laser heads to engrave the same position of the plate roller at the same time; 4) Start the stepper motor again to adjust the position of multiple laser heads and carve out patterns of different shapes to complete the engraving of the plate roller.

[0024] The engraving process of a laser direct engraving machine of the present invention is further set as follows: the power of each laser head is 1500w.

[0025] By adopting the above technical solution, the power of the laser head is higher than the existing power and the engraving effect is better.

[0026] Compared with the prior art, the present invention has the following beneficial effects: The laser direct engraving machine of the present invention uses multiple laser heads to perform overlapping engraving and jointly complete a depth, so that the engraving depth is deeper and the engraving efficiency is higher.

[0027] The multiple laser heads of the laser direct engraving machine of the present invention are synchronously displaced through the same track, so that the same part can be engraved repeatedly by different laser heads.

[0028] The laser device in the present invention moves by grating stepping without lead screw stepping, and the moving accuracy is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of the laser direct engraving machine of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the laser direct engraving machine of the present invention. Figure 2 ; Figure 3 for Figure 2 A magnified view of the structure at center. DETAILED DESCRIPTION

[0030] Please refer to the instruction manual Figure 1 To Attachment Figure 3 As shown, the present invention is a laser direct engraving machine and engraving process. A fixing device 2 for fixing the plate roller is installed on the machine base 1, and the fixing device 2 can drive the plate roller to rotate. A laser device 3 is provided on the other side of the fixing device 2. The laser device 3 is slidably connected to the machine base 1 through a stepper motor. The laser device 3 is used to engrave the plate roller.

[0031] The fixing device 2 includes a rotating device 21 fixedly connected to the machine base 1 and a rotating device 22 slidably connected to the machine base 1. The position of the rotating device 21 corresponds to the position of the rotating device 22. The structures of the rotating device 21 and the rotating device 22 are consistent. The rotating device 21 includes a turntable 211. The turntable 211 is provided with a plurality of clamping teeth 212. The plurality of clamping teeth 212 move synchronously on the turntable 211. The plurality of clamping teeth 212 are used to clamp the plate roller. The turntable 211 is rotated by a motor and links the plate roller.

[0032] The laser device 3 is connected to the base 1 by sliding through a stepper motor. The laser device 3 includes a laser frame 31. The laser frame 31 is provided with more than two laser heads. The laser frame 31 drives the more than two laser heads to slide on the base 1. Multiple laser heads are displaced on the same track to ensure synchronous displacement. Different laser heads in the same part can be repeatedly engraved. When multiple laser heads perform multiple engravings, they can jointly complete a depth, making the depth deeper and the efficiency higher. The displacement of the stepper motor makes the precision high and the engraving more precise. The power of each laser head is 1500w. Compared with the existing power, the power of the laser head is higher and the engraving effect is better. In this embodiment, 1 square meter of engraving can be completed in six to seven minutes, and the resolution of the completed work is about 2540. The water cooling box 4 is connected to the laser head, and the water cooling box 4 can keep the temperature of the laser head stable. In this embodiment, the entire laser head is in the water cooling box 4, and the temperature of the water cooling box 4 is 20~25°C to prevent water droplets on the lens from bursting during operation and to avoid excessive temperature of the laser head, which affects the working efficiency of the laser head.

[0033] A through slot is provided on the laser frame 31 for the laser head to emit laser light, and an air guide 32 is installed on the side of the through slot away from the laser head. The air guide 32 is in the shape of a truncated cone, and an air guide member 1 is provided inside the laser frame 31 for blowing toward the air guide 32. The air guide member 1 can blow dust inside the laser frame 31 out of the laser frame 31 to prevent dust from staying on the laser head and affecting the working efficiency. An air guide member 2 33 is installed outside the laser frame 31, and the air guide member 2 33 blows toward the side of the air guide 32 away from the laser head. The air guide member 2 33 can prevent dust from staying on the air guide 32 and affecting the working efficiency of the laser head.

[0034] The machine base 1 is made of marble, which is more stable, stress-free and not easy to deform compared with common castings. A folding dustproof cloth 5 is installed on the rotating device 22, and the folding dustproof cloth 5 is laid on the track on which the rotating device 22 moves. The folding dustproof cloth 5 can be unfolded and compressed along with the rotating device 22 to prevent dust from falling into the track and affecting the movement of the rotating device 22.

[0035] The working principle of a laser direct engraving machine and engraving process of the present invention is as follows: First, place the plate roller between the rotating device 1 21 and the rotating device 2 22, move the rotating device 2 22 to a suitable position, start the clamping teeth 212 to clamp the plate roller, start the motor to drive the turntable 211 and the plate roller to move, and multiple laser heads are driven by the stepper motor to slide on the machine base 1. Multiple laser heads perform multiple engravings to complete a depth together, making the engraving depth deeper and more efficient. Remove the plate roller and directly form it without chemical corrosion treatment.

[0036] The above specific implementation methods are only preferred embodiments of the present invention and are not intended to limit the present invention. 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 direct engraving machine, characterized in that: It includes a machine base, on which a fixing device for fixing the plate roller is installed, and a laser device is provided on the other side of the fixing device. The laser device is slidably connected to the machine base through a stepper motor, and the laser is used to engrave the plate roller. The laser device includes a laser frame, and the laser frame is provided with more than two laser heads. When working, multiple laser heads simultaneously engrave the same position of the plate roller.

2. The laser direct engraving machine according to claim 1, characterized in that: The laser frame is provided with a through slot for the laser head to emit laser, an air duct is installed on the side of the through slot away from the laser head, the air duct is in a truncated cone shape, and an air guide member blowing toward the air duct is arranged in the laser frame.

3. The laser direct engraving machine according to claim 2, characterized in that: A second air guide member is installed outside the laser frame, and the second air guide member blows toward a side of the air guide duct away from the laser head.

4. The laser direct engraving machine according to claim 3, characterized in that: The fixing device comprises a rotating device 1 fixedly connected to the machine base and a rotating device 2 slidably connected to the machine base. The position of the rotating device 1 corresponds to the position of the rotating device 2. The rotating device 1 is used to drive the plate roller to rotate.

5. The laser direct engraving machine according to claim 1, characterized in that: A folding dustproof cloth is installed on the second rotating device, and the folding dustproof cloth is laid on the track on which the second rotating device moves.

6. The laser direct engraving machine according to claim 1, characterized in that: It also includes a water cooling box, which is connected to the laser head.

7. The laser direct engraving machine according to claim 6, characterized in that: The laser head's generator is located in the liquid of the water-cooling box.

8. The laser direct engraving machine according to claim 1, characterized in that: The base is made of marble.

9. The engraving process of a laser direct engraving machine according to claim 1, characterized in that The steps include: 1) Place the plate roller on the fixing device for fixing; 2) Start the stepper motor to move the laser device to the appropriate position; 3) Start multiple upper laser heads to engrave the same position of the plate roller at the same time; 4) Start the stepper motor again to adjust the position of multiple laser heads and carve out patterns of different shapes to complete the engraving of the plate roller.

10. The engraving process of a laser direct engraving machine according to claim 1, characterized in that: The power of each laser head is 1500w.

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