Composite loading, conveying and supporting system for laser cutting machines

Abstract

A composite feeding, conveying and supporting system for a laser cutting machine tool comprises a plurality of evenly arranged rollers and coaxially evenly distributed support discs on the rollers; the support discs on adjacent rollers are staggered; the adjacent rollers rotate synchronously, so that the multiple staggered support discs support and roll-convey the workpiece; multi-point support can be achieved while avoiding scratches on the bottom of the workpiece; the molten metal in laser cutting will fall as the support discs rotate before it is completely cooled, and very little of it will remain on the support discs, thereby ensuring that the fulcrums of the multiple support discs are basically located on the same plane, without affecting the flatness of the workpiece, and achieving better laser cutting processing quality.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting machine equipment, in particular to a feeding, conveying and supporting composite system for laser cutting machine tools. Background Art

[0002] Laser cutting machines use the energy of lasers to concentrate the lasers into a high-density beam in the form of light. The beam is transmitted to the work surface, generating enough heat to melt the material. In addition, high-pressure gas coaxial with the beam directly removes the molten metal, thereby achieving the purpose of cutting. Generally speaking, a laser cutting machine is equipped with a laser cutting machine tool; the laser cutting machine tool is not only connected to the support components of the workpiece, but also connected to the loading and conveying components of the workpiece; the support components are generally densely arranged legs; these legs are connected in rows, and the tops are provided with support surfaces; the loading and conveying components are generally pushing structures; the pushing structure pushes the workpiece and it is easy to cause scratches on the bottom of the workpiece; on the other hand, the pushing structure can only act on one end of the workpiece, which can easily cause deviations in the workpiece transportation; whether it is damage to the bottom of the workpiece or only acts on one end of the workpiece, it will affect the quality of laser cutting; in addition, during the laser cutting process, the molten metal legs will be attached to the legs after cooling, resulting in uneven height of the legs. At the same time, the laser will also cause cutting damage to the legs, forming marks on the legs. These marks are more likely to stick to the cut molten metal, making the above problems more serious. Therefore, there is an urgent need for a support decoration that can automatically discharge slag to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems and provide a composite system for feeding, conveying and supporting laser cutting machines.

[0004] The technical solution of the present invention is: a composite system for feeding, conveying and supporting for a laser cutting machine tool, the system comprising a lower frame and a plurality of rollers arranged on the frame, characterized in that: the plurality of rollers are arranged in parallel with equal intervals, and a plurality of support plates are arranged along the length direction of each roller; the support plates on adjacent rollers are staggered; the end of each roller is supported on the machine tool frame by a bearing box, and all rollers rotate in the same direction.

[0005] Preferably, each of the bearing boxes is identical, the length of the seat plates of the bearing boxes is the same as the axial spacing between the roller bodies, and the seat plate ends of the bearing boxes of adjacent roller bodies are arranged in contact.

[0006] Preferably, a sprocket is provided at the end of each roller body; the sprockets of adjacent roller bodies are connected and driven by a chain.

[0007] Preferably, the sprocket is a double-layer sprocket.

[0008] Preferably, the system further comprises a drive motor; the drive motor is arranged at the end of the frame; a drive sprocket is provided at the output end of the drive motor; the drive sprocket is connected to the sprocket on the roller at the end through a drive chain.

[0009] Preferably, the cross section of the roller body is a regular polygon, the middle portion of the support plate is a matching regular polygon hole, and the support plate is sleeved on the roller body.

[0010] Preferably, the roller body is also provided with a plurality of positioning sleeves, which are located between adjacent support plates or between the outermost support plate and the bearing box, and the inner circle of the positioning sleeves matches the cross-sectional size of the roller body.

[0011] The beneficial effects of the present invention are:

[0012] 1. The feeding, conveying and supporting composite system for the laser cutting machine of the present invention comprises a plurality of rollers evenly arranged along the laser cutting machine and support plates coaxially and evenly distributed on the rollers; the support plates on adjacent rollers are staggered; the adjacent rollers rotate synchronously, so that the plurality of staggered support plates support and roll-convey the workpiece; multi-point support can be achieved while avoiding scratches on the bottom of the workpiece; the molten metal in laser cutting will fall as the support plate rotates before it is completely cooled, and very little of it will remain on the support plate, so that the fulcrums of the plurality of support plates can be ensured to be basically located on the same plane, without affecting the flatness of the workpiece, and better laser cutting processing quality can be obtained.

[0013] 2. The length of the bottom plate of the bearing box is the same as the spacing between the roller bodies. The bearing boxes are arranged one by one on the frame. The equal spacing of the roller bodies can be achieved by installing the bearing boxes, which can simplify the installation and manufacturing process.

[0014] 3. Double-layer sprockets and chains are used at the ends of adjacent rollers to realize transmission between adjacent rollers, ensuring that multiple rollers rotate in the same direction.

[0015] 4. The rotation of adjacent rollers and the staggered arrangement of the support plates can form a staggered relative rotation effect between the support plates, which is conducive to the falling of some cutting waste, including metal slag temporarily adhering to the support plates, which is also more likely to be carried away by the falling waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the loading, conveying and supporting composite system for laser cutting machine tools;

[0017] Figure 2 It is a top view structural diagram of the system;

[0018] Figure 3 yes Figure 2 A partial enlarged schematic diagram;

[0019] Figure 4 It is the main structural diagram of the system;

[0020] Figure 5 for Figure 4 A partial enlarged schematic diagram;

[0021] Figure 6 This is a schematic diagram of the main structure of the support roller assembly;

[0022] Figure 7 for Figure 6 AA cross-sectional structural diagram;

[0023] Figure 8 for Figure 6 BB cross-sectional structure diagram;

[0024] Figure 9 Schematic diagram of the three-dimensional structure of the support roller assembly;

[0025] In the figure: 0. Laser cutting machine frame, 1. Roller, 2. Support plate, 3. Drive motor, 31. Drive sprocket, 32. Drive chain, 4. Support plate, 5. Positioning sleeve, 11. Bearing box, 12. Sprocket, 13. Chain. DETAILED DESCRIPTION

[0026] Example: See Figure 1-9 The figure shows a composite feeding, conveying and supporting system for a laser cutting machine tool. The system includes a lower frame and several rollers mounted on the frame. The rollers are arranged in parallel at equal intervals, and each roller is provided with several support plates along its length. The support plates on adjacent rollers are staggered. The ends of each roller are supported on the machine tool frame by bearing boxes, and all rollers rotate in the same direction. The support plates rotate with the rollers. The support plates on adjacent rollers alternately support the workpiece to drive the workpiece. The multiple support plates form a multi-point drive for the workpiece, making the movement of the workpiece more accurate. The rotational friction drive mode replaces the previous sliding friction drive mode, making the bottom of the workpiece less prone to scratches. Even in the laser cutting work area, the molten metal caused by the laser does not cool completely after hanging on the edge of the support plate. The rotation of the support plate will also cause the molten metal to turn to a downward state. The molten metal directly falls off the support plate. As a result, factors affecting the quality of laser cutting, including scratches on the bottom of the workpiece and problems of molten metal raising the workpiece, are eliminated, and the quality of laser cutting is guaranteed.

[0027] Each of the bearing boxes is identical, the length of the seat plate of the bearing box is the same as the axial spacing between the roller bodies, and the seat plate ends of the bearing boxes of adjacent roller bodies are arranged in contact; the length of the bottom plate of the bearing box is the same as the spacing between the roller bodies, and the bearing boxes are arranged one by one on the frame. The equal spacing of the roller bodies can be achieved by installing the bearing boxes, which can simplify the installation and manufacturing process.

[0028] Each roller is equipped with a sprocket at its end; the sprockets of adjacent rollers are connected by a chain for transmission. The sprockets are double-layered, enabling step-by-step transmission and co-directional rotation of adjacent rollers. The system also includes a drive motor located at the end of the frame. The output end of the drive motor is equipped with a drive sprocket, which is connected to the sprocket on the end roller via a drive chain. In this embodiment, the motor's output speed can be adjusted using a frequency converter or a speed reducer.

[0029] The cross section of the roller body is a regular polygon, and the middle of the support plate is a regular polygon hole of matching size. The support plate is sleeved on the roller body. The support plate and the roller body are sleeved together, which makes it easy to disassemble and replace the support plate and extend the service life of the roller body.

[0030] The roller body is also fitted with several positioning sleeves, located between adjacent support discs or between the outermost support disc and the bearing housing. The inner diameter of the positioning sleeves matches the cross-sectional dimensions of the roller body and fits snugly around the roller body, preventing radial movement. The positioning sleeves ensure uniform distribution of the support discs and protect the roller body from laser damage or adhesion to metal slag, which can complicate assembly and disassembly. The positioning sleeves are sized appropriately for the roller body, creating a stable clamping effect on both sides of the support discs, ensuring stable operation.

[0031] The working process of this embodiment:

[0032] The drive motor starts and drives the double-layer sprocket on the end roller to rotate through the chain. The rotation of the double-layer sprocket drives the adjacent rollers to rotate through the small chain, and the transmission is carried out step by step to achieve the same direction rotation of all rollers, so that the support plates on each roller rotate accordingly; the edge of the support plate on the roller circulates to support the lower surface of the workpiece and drives the workpiece to move through sliding friction, thus realizing various functions of loading, conveying and supporting.

Claims

1. A composite feeding, conveying and supporting system for a laser cutting machine tool, the system comprising a lower frame and a plurality of rollers mounted on the frame, characterized in that: The rollers are arranged in parallel at equal intervals, and each roller is provided with a plurality of support plates along its length; the support plates on adjacent rollers are staggered; the ends of each roller are supported on the machine tool frame through bearing boxes, and all rollers rotate in the same direction; The cross section of the roller body is a regular polygon, the middle portion of the support plate is a matching regular polygon hole, and the support plate is sleeved on the roller body; The roller body is also provided with a plurality of positioning sleeves, which are located between adjacent support plates or between the outermost support plate and the bearing box. The inner circle of the positioning sleeve matches the cross-sectional size of the roller body.

2. The feeding, conveying and supporting composite system for a laser cutting machine according to claim 1, characterized in that: Each bearing box is identical, the length of the seat plate of the bearing box is the same as the axial spacing between the roller bodies, and the end portions of the seat plates of the bearing boxes of adjacent roller bodies are arranged in contact.

3. The feeding, conveying and supporting composite system for a laser cutting machine according to claim 1, characterized in that: Each roller body end is provided with a sprocket; the sprockets of adjacent roller bodies are connected and driven by a chain.

4. The composite feeding, conveying and supporting system for a laser cutting machine according to claim 3, characterized in that: The sprocket is a double-layer sprocket.

5. The composite feeding, conveying and supporting system for a laser cutting machine according to claim 3, characterized in that: The system also includes a drive motor; the drive motor is arranged at the end of the frame; the output end of the drive motor is provided with a drive sprocket; The driving sprocket is connected to the sprocket on the roller body at the end through a driving chain.

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