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CN-121972840-A - Flexible screen laser cutting equipment for reducing influence of thermal effect

CN121972840ACN 121972840 ACN121972840 ACN 121972840ACN-121972840-A

Abstract

The invention relates to the technical field related to laser beam cutting processing, in particular to flexible screen laser cutting equipment for reducing the influence of heat effect, which comprises a base, an assembly plate movably arranged above the base, and a laser cutting head arranged on the side part of the assembly plate, wherein the assembly plate can be driven by a linear driving module arranged on the base to move along the length, width and height directions of the base, a fixed arm is fixed at the bottom of the assembly plate, a rotating pipe is rotatably arranged on the fixed arm, a cylinder can drive the rotating pipe to rotate through a transmission mechanism before the laser cutting head changes the direction of a cutting path, so that the position of a blowing head and a guide piece can be switched, the blowing head and the guide piece are always respectively positioned at the front end and the rear end of the moving direction of the laser cutting head under the condition of different cutting paths, and the dynamically adjusted blowing mode can more accurately directly act cooling gas on a cutting seam, effectively take away heat and improve the cooling efficiency.

Inventors

  • SHEN FAFU

Assignees

  • 江苏和熠光显科技有限公司

Dates

Publication Date
20260505
Application Date
20260309

Claims (9)

  1. 1. A flexible screen laser cutting device for reducing the influence of thermal effects comprises a base; Characterized by further comprising: the assembly plate is movably arranged above the base and the laser cutting head is arranged on the side part of the assembly plate, the assembly plate can be driven by the linear driving module arranged on the base to move along the length, the width and the height directions of the base, the bottom of the assembly plate is fixedly provided with a fixed arm, the fixed arm is rotatably provided with a rotating tube, the bottom of the rotating tube is fixedly provided with a transverse plate, and the laser cutting head penetrates through the rotating tube and the transverse plate; The blowing head is fixed at the bottom of the transverse plate, and the flow guide piece is movably arranged at the bottom of the transverse plate, and the blowing head and the flow guide piece are respectively positioned at two sides of the laser cutting head; The cylinder is fixed on the assembly plate, and can drive the rotating pipe to rotate through the transmission mechanism before the laser cutting head changes the direction of the cutting path, so that the blowing head and the flow guiding piece are respectively positioned at the front end and the rear end of the moving direction of the laser cutting head, and the cylinder can drive the flow guiding piece to perform lifting action through the rolling fit mechanism before the rotating pipe performs rotating action, so that the flow guiding piece is separated from the screen.
  2. 2. The flexible screen laser cutting device for reducing the influence of thermal effects according to claim 1, wherein two first inclined portions are formed on one side of the guide member facing the blowing head, a plurality of rollers are arranged at the bottom of the guide member, when the rollers contact the screen surface, an air duct is formed between the guide member and the screen surface, and two second inclined portions are formed on the inner side of the guide member, so that the width of the air duct in the moving direction of the laser cutting head is gradually reduced.
  3. 3. The flexible screen laser cutting device for reducing the influence of thermal effects according to claim 1, wherein the transmission mechanism comprises a vertical shaft rotatably mounted at the bottom of the mounting plate, a first gear fixed at one end of the vertical shaft away from the mounting plate, and a second gear fixed on the rotating tube, the first gear is meshed with the second gear, and a sliding fit structure is arranged between the vertical shaft and the cylinder.
  4. 4. The flexible screen laser cutting device for reducing the influence of thermal effects according to claim 3, wherein the sliding fit structure comprises a sliding sleeve sleeved on the vertical shaft in a sliding manner, the sliding sleeve is fixedly connected with the movable end of the air cylinder, a driving column is fixedly arranged on the sliding sleeve, a plurality of groove bodies which are connected and are matched with the driving column are arranged on the vertical shaft, and the driving column extends into the groove body and is in sliding connection with the vertical shaft.
  5. 5. The flexible screen laser cutting apparatus of claim 4, wherein a plurality of said slots are distributed along a helical path, said slots including a first runner and a second runner connected, said first runner being disposed axially of said vertical shaft, said second runner being helically disposed, said rolling engagement mechanism being triggered when said drive post slides within said first runner.
  6. 6. The flexible screen laser cutting device for reducing the influence of heat effects according to claim 1, wherein a guide groove is formed in the bottom of the fixed arm, the rolling fit mechanism comprises a sliding block which is slidably embedded in the guide groove, the sliding block is connected with two groups of elastic structures arranged on two sides of the fixed arm, two groups of driven structures are arranged between the sliding block and the movable end of the cylinder, and the sliding block is connected with the guide piece through a follow-up structure.
  7. 7. The flexible screen laser cutting apparatus for reducing thermal effect according to claim 6, wherein the elastic structure comprises a cross bar fixed to the side of the fixed arm through a protruding block and a spring sleeved on the outer periphery of the cross bar, the cross bar penetrates through the slider and is slidably connected with the slider, and two ends of the spring are respectively connected with the protruding block and the slider.
  8. 8. The flexible screen laser cutting device for reducing the influence of thermal effects according to claim 6, wherein the driven structure comprises a vertical arm fixed with the sliding block through a connecting arm, a plurality of protruding portions are arranged on the side portion of the vertical arm at equal intervals, the protruding portions are arranged in a trapezoid shape, inclined planes are formed on two sides of the protruding portions, and a driving wheel matched with the protruding portions is connected to the movable end of the cylinder.
  9. 9. The flexible screen laser cutting device for reducing the influence of thermal effects according to claim 6, wherein the follow-up structure comprises a follow-up ring which is sleeved on the rotating pipe in a sliding manner and is fixedly connected with the flow guiding piece through two upright posts, the two upright posts are in sliding connection with the transverse plate, an annular groove is formed in the follow-up ring, and an embedded block is embedded in the annular groove in a sliding manner.

Description

Flexible screen laser cutting equipment for reducing influence of thermal effect Technical Field The invention relates to the technical field related to laser beam cutting processing, in particular to flexible screen laser cutting equipment for reducing the influence of thermal effect. Background The flexible screen is used as a front display technology, and is widely applied to the fields of smart phones, tablet computers, wearable equipment and the like by virtue of the unique advantages of thinness, flexibility, foldability and the like, so that brand new visual experience and convenience in use are brought to users. In the production process of the flexible screen, the laser cutting technology is widely applied due to the remarkable advantages of high precision, high efficiency, non-contact processing and the like. The cutting head moves along the X axis or the Z axis in a straight line, so that mechanical damage is reduced, and cutting quality is improved. However, the thermal effect generated during laser cutting is a problem to be solved. The thermal effect may cause undesirable phenomena such as melting, burrs, edge chipping and the like at the edges of the flexible screen material, affecting the flatness and quality of the cut edges. In addition, thermal effects can also cause changes in the microstructure of the material, thereby affecting its optical, electrical, etc. properties. To solve this problem, existing laser cutting devices typically install a cooling nozzle near the cutting head. The nozzles can spray cooling gas to the cutting area to timely take away heat generated in the cutting process, so that the temperature of materials is reduced, and the influence of thermal effects is reduced. However, the existing blowing cooling means have some limitations. Whether directly blowing to the screen surface or by using an oblique blowing mode, the coverage area of the cooling gas is relatively fixed, and the whole length of the cutting seam is difficult to be covered in a whole range. Especially when the cutting head is moving fast, the cooling gas may not cover the front end of the cutting slit in time, resulting in a local heat accumulation. In addition, the dissipation is faster after the cooling gas blows out, leads to the utilization ratio of the cooling gas lower, has influenced the cooling effect. Disclosure of Invention The present invention aims to provide a flexible screen laser cutting device for reducing the influence of thermal effects, so as to solve the problems in the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: the flexible screen laser cutting equipment that reduces thermal effect influence includes the base, still includes: the assembly plate is movably arranged above the base and the laser cutting head is arranged on the side part of the assembly plate, the assembly plate can be driven by the linear driving module arranged on the base to move along the length, the width and the height directions of the base, the bottom of the assembly plate is fixedly provided with a fixed arm, the fixed arm is rotatably provided with a rotating tube, the bottom of the rotating tube is fixedly provided with a transverse plate, and the laser cutting head penetrates through the rotating tube and the transverse plate; The blowing head is fixed at the bottom of the transverse plate, and the flow guide piece is movably arranged at the bottom of the transverse plate, and the blowing head and the flow guide piece are respectively positioned at two sides of the laser cutting head; The cylinder is fixed on the assembly plate, and can drive the rotating pipe to rotate through the transmission mechanism before the laser cutting head changes the direction of the cutting path, so that the blowing head and the flow guiding piece are respectively positioned at the front end and the rear end of the moving direction of the laser cutting head, and the cylinder can drive the flow guiding piece to perform lifting action through the rolling fit mechanism before the rotating pipe performs rotating action, so that the flow guiding piece is separated from the screen. According to the flexible screen laser cutting device for reducing the influence of the thermal effect, the two first inclined parts are formed on one side, facing the blowing head, of the guide piece, the plurality of rollers are arranged at the bottom of the guide piece, when the rollers contact the surface of the screen, the guide piece and the surface of the screen form an air channel, and the two second inclined parts are formed on the inner side of the guide piece, so that the width of the air channel in the moving direction of the laser cutting head is gradually reduced. The transmission mechanism comprises a vertical shaft rotatably arranged at the bottom of the assembly plate, a first gear fixed at one end of the vertical shaft far away from the assembly plate, and a second