Roller-supported conveyor laser cutting machine

Abstract

The present invention relates to a movable roller support conveying type laser cutting machine, which comprises a frame, a mobile frame, a laser cutting head and a support roller group, wherein the mobile frame is arranged on the frame and can be movably arranged in the X-axis direction. The support roller group is laid on the frame and comprises a first movable roller group and a second movable roller group, wherein the first movable roller group is arranged on one side of the mobile frame and connected to the mobile frame, and the second movable roller group is arranged on the other side of the mobile frame and connected to the mobile frame. The first movable roller group and the second movable roller group both comprise a plurality of movable rollers arranged side by side and spaced along the X-axis, wherein each movable roller comprises a roller shaft and a roller drum, wherein both ends of the roller shaft are arranged on the frame and can be movably arranged in the X-axis direction, and the roller drum can be rotatably sleeved between both ends of the roller shaft. The movable roller support conveying type laser cutting machine does not need to adopt a transmission belt, thereby avoiding the disadvantages of the transmission belt being easy to be damaged, easy to age and difficult to maintain; each roller shaft is always kept parallel, thereby ensuring the consistency of the feeding direction of the movable roller, and the feeding will not deviate.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control laser processing, in particular to a moving roller supported conveying type laser cutting machine. Background Art

[0002] Laser cutting technology uses laser to cut workpieces instead of traditional mechanical knives. It has the characteristics of high precision, fast cutting, no restrictions on cutting patterns, automatic typesetting to save materials, smooth incisions and low processing costs. It will gradually improve or replace traditional metal cutting process equipment.

[0003] See also Figure 1 , Figure 1 The schematic diagram of the structure of a laser cutting machine in the conventional technology is shown, and the laser cutting machine 1 comprises a feeding mechanism 10 and a laser cutting head 20 arranged above the feeding mechanism 10. The feeding mechanism 10 comprises a conveying roller 11 and a transmission belt 12, and the transmission belt 12 is arranged between a plurality of conveying rollers 11, and rotates between the plurality of conveying rollers 11 by the rotation of the conveying rollers 11, so as to be able to transmit the material belt along the feeding direction (direction indicated by the arrow). The laser cutting head 20 is located above the transmission belt 12, and the transmission belt 12 is provided with a light slit 13 at a position corresponding to the laser cutting head 20, and the light slit 13 is used to receive slag, scraps, etc. generated by cutting. During laser cutting, the material belt is directly placed on the transmission belt 12 for feeding. On the one hand, due to the limited width of the light slit 13 and the fact that the cutting point is not far from the transmission belt 12, the high-temperature slag splashes under the action of compressed gas and is very likely to fall or stick to the surface of the transmission belt 12, and may be brought to the outer surface of the transmission roller 11 below the light slit 13. A small sharp point on the transmission roller 11 below can cause continuous damage to the transmission belt 12, thereby damaging the transmission belt 12. On the other hand, there are slight cutting burrs around the finished product after cutting, which can also cause damage to the transmission belt 12 over time during the transmission process. Summary of the invention

[0004] Based on this, a moving roller supported conveying type laser cutting machine is provided, aiming to overcome the problem that the transmission belt of the traditional laser cutting machine is easily damaged.

[0005] A movable roller supported conveying type laser cutting machine, comprising:

[0006] frame;

[0007] A movable frame, the movable frame is arranged on the frame and can be moved in the X-axis direction;

[0008] a laser cutting head, the laser cutting head being movably mounted on the movable frame; and

[0009] A supporting roller group, the supporting roller group is laid on the frame and includes a first movable roller group and a second movable roller group, the first movable roller group is arranged on one side of the moving frame and connected to the moving frame, and the second movable roller group is arranged on the other side of the moving frame and connected to the moving frame;

[0010] Wherein, the first movable roller group and the second movable roller group each include a plurality of movable rollers spaced side by side along the X-axis, each movable roller includes a roller shaft and a roller drum, both ends of the roller shaft are arranged on the frame and are movably arranged in the X-axis direction, and the roller drum is rotatably sleeved between the two ends of the roller shaft and is used to support the material strip.

[0011] In one embodiment, in the first movable roller group, the distance between two adjacent movable rollers is equal, and the axes of all the movable rollers are arranged in parallel; in the second movable roller group, the distance between two adjacent movable rollers is equal, and the axes of all the movable rollers are arranged in parallel.

[0012] In one of the embodiments, the movable roller supported conveyor type laser cutting machine further includes: a guide mechanism, one of the guide mechanisms is arranged on one side of the frame and includes a guide bar and a plurality of guide components, the guide bar extends along the X-axis, and the plurality of guide components are all guided and cooperated with the guide bar; wherein one end of each of the roller shafts is connected to one of the guide components, and one end of the movable frame is connected to at least one of the guide components.

[0013] In one embodiment, the movable roller supported conveyor type laser cutting machine further comprises:

[0014] A plurality of synchronous wheels and synchronous drive mechanisms, each synchronous wheel is rotatably arranged on the roller shaft of one of the movable rollers and connected to the roller on the roller shaft; the synchronous drive mechanism is arranged on the frame, the synchronous drive mechanism comprises a pulley transmission mechanism and a synchronous driver, the pulley transmission mechanism comprises a synchronous belt, and the synchronous belt connects all the synchronous wheels; the synchronous driver is connected to the pulley transmission mechanism and is used to drive the synchronous belt to rotate, and the synchronous belt drives the rollers of all the movable rollers to rotate through all the synchronous wheels; or,

[0015] Multiple roller driving mechanisms, each of which is arranged on one of the movable rollers, and includes a reduction mechanism and a roller driver; wherein the output end of the reduction mechanism is connected to the roller of the movable roller, and the roller driver is fixed to one end of the roller shaft of the movable roller through a support and connected to the input end of the reduction mechanism, and is used to drive the reduction mechanism to drive the roller to rotate.

[0016] In one embodiment, the synchronous wheel is a gear, and the pitch circle diameter of the synchronous wheel is equal to the outer diameter of the roller.

[0017] In one embodiment, the linear speed of each of the movable rollers is the same as the feeding speed of the material strip.

[0018] In one of the embodiments, the movable roller supported conveying type laser cutting machine further includes: a telescopic mechanism, which is a parallelogram mechanism; wherein one of the parallelogram mechanisms is rotatably connected to all ends on the same side of the first movable roller group, and is capable of driving the first movable roller group to move through a telescopic movement; and the other parallelogram mechanism is rotatably connected to all ends on the same side of the second movable roller group, and is capable of driving the second movable roller group to move through a telescopic movement.

[0019] In one embodiment, the support roller group also includes a first fixed roller and a second fixed roller; the first fixed roller is fixed to one end of the frame and is disposed adjacent to the first movable roller group, and one end of the first fixed roller is rotatably connected to one of the parallelogram mechanisms; the second fixed roller is fixed to the other end of the frame and is disposed adjacent to the second movable roller group, and one end of the second fixed roller is rotatably connected to another of the parallelogram mechanisms.

[0020] In one embodiment, the movable roller supported conveyor type laser cutting machine further comprises:

[0021] An X-axis rack, an X-axis driving gear and an X-axis driver, wherein the X-axis rack is arranged on the frame; the X-axis driving gear is meshed with the X-axis rack; the X-axis driver is arranged on the moving frame, and the driving end of the X-axis driver is connected to the X-axis driving gear and is used to drive the X-axis driving gear to rotate along the X-axis rack to drive the moving frame to move along the X-axis; or,

[0022] A rack and pinion mechanism, an X-axis transmission mechanism and an X-axis driver, wherein the rack and pinion mechanism is arranged on one side of the frame and comprises a roller rack and a plurality of roller gears, wherein the roller rack extends along the X-axis, and each roller gear is sleeved on one end of a roller shaft and meshed with the roller rack; the X-axis transmission mechanism is arranged on the mobile frame, and the output end of the X-axis transmission mechanism is connected to at least one roller shaft of the first movable roller group and / or the second movable roller group; the X-axis driver is arranged on the mobile frame, and the driving end of the X-axis driver is connected to the input end of the X-axis transmission mechanism, and can drive the roller shaft to rotate through the X-axis transmission mechanism, so as to drive the mobile frame to move along the X-axis.

[0023] In one embodiment, the movable roller supported conveyor type laser cutting machine further comprises:

[0024] A plurality of roller reducers, ball spline shafts and axial drivers, wherein the plurality of roller reducers are connected one by one with all the movable rollers; the ball spline shaft runs through all the roller reducers; the driving end of the axial driver is connected to one end of the ball spline shaft and is used to drive the ball spline shaft to rotate, so that all the roller reducers move along the ball spline shaft; or,

[0025] A rack and pinion mechanism and a plurality of roller shaft drivers, wherein the rack and pinion mechanism is arranged on one side of the frame and comprises a roller shaft rack and a plurality of roller shaft gears, the roller shaft rack extends along the X-axis, each roller shaft gear is sleeved on one end of a roller shaft and meshed with the roller shaft rack; each roller shaft driver is arranged on the roller shaft of a movable roller through a bearing, the driving end of the roller shaft driver is connected to the roller shaft gear on the roller shaft, and is used to drive the roller shaft gear to move along the roller shaft rack.

[0026] The above-mentioned movable roller supported conveyor type laser cutting machine is provided with a supporting roller group on the frame, wherein the first movable roller group and the second movable roller group of the supporting roller group each include a plurality of movable rollers, and the plurality of movable rollers are spaced and arranged side by side along the X-axis, wherein the roller of each movable roller can be rotatably arranged, and then the material belt supported by the roller can move along the feeding direction, and there is no need to use a transmission belt, thereby avoiding the shortcomings of the transmission belt being easy to be damaged, easy to age, and difficult to maintain. Moreover, the moving frame is respectively connected to the first movable roller group and the second movable roller group, that is, the moving frame can move with the movement of the movable roller in the X-axis direction, thereby driving the laser cutting head to move, and at the same time, the laser cutting head can move on the moving frame, thereby being able to cut patterns of different shapes.

[0027] Furthermore, roller shaft gears are provided at both ends of the roller shaft of each movable roller, which are meshed with the roller shaft racks on both sides of the frame, thereby realizing the synchronous movement of the two ends of each movable roller, and a guide mechanism is provided to guide the movement of the movable roller, so that the two ends of each movable roller always keep synchronous movement and the roller shafts always keep parallel.

[0028] Furthermore, both ends of the roller shaft of each movable roller are provided with limit bearings to achieve bidirectional limit, and any cross section of the movable roller will not move along its axial direction, thereby ensuring the consistency of the feeding direction of the movable roller and preventing the feeding from deviating. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a simplified structural diagram of a laser cutting machine in traditional technology;

[0030] Figure 2 It is a structural schematic diagram of a movable roller supported conveying type laser cutting machine in the first embodiment of the present invention;

[0031] Figure 3 for Figure 2A structural diagram of a laser cutting machine supported by a moving roller from another perspective;

[0032] Figure 4 for Figure 2 A structural diagram of a laser cutting machine with a middle moving roller support and conveyor;

[0033] Figure 5a to Figure 5c for Figure 2 Working principle diagram of the telescopic mechanism of the middle moving roller supported conveyor laser cutting machine;

[0034] Figure 6 for Figure 2 An enlarged view of area A of the conveyor laser cutting machine supported by a middle roller;

[0035] Figure 7 for Figure 3 An enlarged view of area B of the conveyor laser cutting machine supported by a middle roller;

[0036] Figure 8 for Figure 2 Top view of the conveyor laser cutting machine supported by a middle moving roller;

[0037] Fig. 9 for Figure 8 Cross-sectional view of the laser cutting machine along line II supported by a middle moving roller;

[0038] Fig.10 for Fig. 9 An enlarged view of the C area of ​​the conveyor laser cutting machine supported by a middle roller;

[0039] Fig.11 for Figure 2 Another structural diagram of a laser cutting machine with a middle moving roller support and conveyor;

[0040] Fig.12 A schematic structural diagram of a movable roller supported conveying type laser cutting machine in a second embodiment of the present invention;

[0041] Fig.13 This is a schematic structural diagram of a movable roller supported conveying type laser cutting machine in the third embodiment of the present invention.

[0042] Description of Figure Numbers:

[0043] Background technology: 1-laser cutting machine; 10-feeding mechanism; 11-transmission roller; 12-transmission belt; 13-light slit; 20-laser cutting head;

[0044] Specific implementation: 100-moving roller support conveyor laser cutting machine; 102-material belt; 200-frame; 210-gear rack mechanism; 212-roller rack; 214-roller gear; 220-guide mechanism; 230-guide bar; 240-guide assembly; 242-guide block; 246-mounting block; 248-limit bearing; 300-moving frame; 310-laser cutting head; 320-pressure roller; 322-pressure roller driving mechanism; 330-X-axis transmission mechanism; 340-X-axis driver; 400-support roller group; 410- A movable roller group; 420-a second movable roller group; 430-a movable roller; 432-a roller shaft; 434-a roller; 440-a first fixed roller; 450-a second fixed roller; 510-a telescopic mechanism; 512-a connecting rod; 520-a roller shaft reducer; 522-a ball spline shaft; 524-an axial drive; 530-a roller shaft drive; 610-a synchronous wheel; 611-a synchronous drive mechanism; 612-a pulley transmission mechanism; 613-a synchronous drive; 614-a synchronous belt; 620-a roller drive mechanism; 622-a speed reduction mechanism; 624-a roller drive. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0051] It should be noted that the movable roller supported conveyor laser cutting machine of the present invention is usually used for cutting material strips or material strip coatings, and then the feeding direction of the material strip is defined as the positive direction of the X-axis, the direction perpendicular to the feeding direction in the material strip plane is defined as the positive direction or negative direction of the Y-axis, and the direction perpendicular to the material strip plane is defined as the positive direction or negative direction of the Z-axis.

[0052] See also Figures 2 to 4 , Figure 2 The structure diagram of the moving roller supported conveying type laser cutting machine in the first embodiment of the present invention is shown. Figure 3 Shows Figure 2 The structural diagram of the laser cutting machine with the support of the middle roller from another perspective. Figure 4 Shows Figure 2A structural diagram of a movable roller supported conveyor type laser cutting machine, a movable roller supported conveyor type laser cutting machine 100 provided in the first embodiment of the present invention, includes a frame 200, a movable frame 300, a laser cutting head 310 and a support roller group 400. Among them, the movable frame 300 is arranged on the frame 200 and is movably arranged in the X-axis direction. The laser cutting head 310 is movably arranged on the movable frame 300. The support roller group 400 is laid on the frame 200 and includes a first movable roller group 410 and a second movable roller group 420. The first movable roller group 410 is arranged on one side of the movable frame 300 and connected to the movable frame 300, and the second movable roller group 420 is arranged on the other side of the movable frame 300 and connected to the movable frame 300. The first movable roller group 410 and the second movable roller group 420 each include a plurality of movable rollers 430 spaced side by side along the X-axis, each movable roller 430 includes a roller shaft 432 and a roller 434, both ends of the roller shaft 432 are provided on the frame 200 and are movably provided in the X-axis direction, and the roller 434 is rotatably sleeved between the two ends of the roller shaft 432 and is used to support the material strip 102.

[0053] By setting a support roller group 400 on the frame 200, the first movable roller group 410 and the second movable roller group 420 of the support roller group 400 each include a plurality of movable rollers 430, and the plurality of movable rollers 430 are arranged side by side and spaced along the X axis, wherein the roller 434 of each movable roller 430 can be rotatably set, and then the material belt 102 supported by the roller 434 can move along the feeding direction, without using a transmission belt, thereby avoiding the shortcomings of the transmission belt being easy to be damaged, easy to age, and difficult to maintain. Moreover, the mobile frame 300 is respectively connected to the first movable roller group 410 and the second movable roller group 420, that is, the mobile frame 300 can move with the movement of the movable roller 430 in the X axis direction, thereby driving the laser cutting head 310 to move, and at the same time, the laser cutting head 310 can move on the mobile frame 300, thereby being able to cut patterns of different shapes.

[0054] It should be noted that the mobile frame 300 has a beam extending along the Y axis, and the laser cutting head 310 can move at least along the Y axis on the mobile frame 300. Of course, different moving directions of the laser cutting head 310 can be set according to actual needs to meet the cutting of products of various shapes. The number of laser cutting heads 310 can be set according to actual needs. When a single laser cutting head 310 is used, it can be used for cutting the material strip 102; when a laser cutting head 310 is used on each of the upper and lower sides, it can be used for cutting the film on both sides of the material strip 102.

[0055] The movable roller support conveyor laser cutting machine 100 further includes a pressure roller 320 and a pressure roller driving mechanism 322, both of which are arranged on the mobile frame 300, and the pressure roller driving mechanism 322 includes a pressure roller motor and a belt transmission mechanism, the pressure roller motor is connected to the output end of the belt transmission mechanism, and the output end of the belt transmission mechanism is connected to the pressure roller 320, so as to drive the pressure roller 320 to rotate. Part of the pressure roller 320 is located above the movable roller 430, and cooperates with the movable roller 430 to play the role of flattening the material belt 102.

[0056] In the first movable roller group 410, the spacing between two adjacent movable rollers 430 is equal, and the axes of all movable rollers 430 are arranged in parallel. In the second movable roller group 420, the spacing between two adjacent movable rollers 430 is equal, and the axes of all movable rollers 430 are arranged in parallel. Therefore, in the same movable roller group, each movable roller 430 always remains parallel, thereby ensuring the consistency of the feeding direction of the movable roller 430 and avoiding the deviation of the material belt 102.

[0057] In this embodiment, the movable roller support conveyor type laser cutting machine 100 further includes a telescopic mechanism 510, which is a parallelogram mechanism. One parallelogram mechanism is rotatably connected to all ends on the same side of the first movable roller group 410, and can drive the first movable roller group 410 to move through telescopic motion. Another parallelogram mechanism is rotatably connected to all ends on the same side of the second movable roller group 420, and can drive the second movable roller group 420 to move through telescopic motion.

[0058] Since the telescopic mechanism 510 is a parallelogram mechanism, the spacing between the movable rollers 430 of the first movable roller group 410 is equal, and the spacing between the movable rollers 430 of the second movable roller group 420 is also equal. The two ends of each movable roller 430 move synchronously in the X-axis direction, and the movable rollers 430 are always parallel. When the spacing between the movable rollers 430 of the first movable roller group 410 increases, the spacing between the movable rollers 430 of the second movable roller group 420 decreases. At this time, all the movable rollers 430 move along the positive direction of the X-axis; conversely, when the spacing between the movable rollers 430 of the first movable roller group 410 decreases, the spacing between the movable rollers 430 of the second movable roller group 420 increases. At this time, all the movable rollers 430 move along the opposite direction of the X-axis.

[0059] It should be noted that the parallelogram mechanism is also called a scissor-type telescopic structure, which includes a plurality of cross units that are rotatably connected in sequence, and each cross unit is formed by two connecting rods 512 that are cross-rotatably connected.

[0060] The supporting roller group 400 further includes a first fixed roller 440 and a second fixed roller 450. The first fixed roller 440 is fixed to one end of the frame 200 and is disposed adjacent to the first movable roller group 410. One end of the first fixed roller 440 is rotatably connected to a parallelogram mechanism. The second fixed roller 450 is fixed to the other end of the frame 200 and is disposed adjacent to the second movable roller group 420. One end of the second fixed roller 450 is rotatably connected to another parallelogram mechanism. Moreover, the first fixed roller 440 and the second fixed roller 450 also include a roller shaft 432 and a roller drum 434. Both ends of the roller shaft 432 are fixed to the frame 200. The roller drum 434 can be rotatably sleeved between the two ends of the roller shaft 432, and is also used to support the material strip 102.

[0061] In this embodiment, both ends of the first movable roller group 410 and the second movable roller group 420 are connected to a parallelogram mechanism, and correspondingly, both ends of the first fixed roller 440 and the second fixed roller 450 are also connected to a parallelogram mechanism. In other words, the first movable roller group 410 is connected between the two parallelogram mechanisms, and the second movable roller group 420 is also connected between the two parallelogram mechanisms, which better ensures the parallel movement of each movable roller 430 of the first movable roller group 410 and the second movable roller group 420, and better keeps the material belt 102 always moving along the feeding direction.

[0062] See also Figure 5a to Figure 5c , Figure 5a to Figure 5c The working principle diagram of the telescopic mechanism of the movable roller support conveyor type laser cutting machine in this embodiment is shown. The figure shows that the movable rollers 11 to 15 of the first movable roller group 410 move along the feeding direction under the action of the telescopic mechanism 510, and when the laser cutting head 310 moves to the left, center, and right positions respectively, the X-axis coordinate value of each movable roller 430 is as follows:

[0063] Moving roller 11: axis X-axis coordinate value: 0.75→1→1.25, increment is 0.25;

[0064] Moving roller 12: axis X-axis coordinate value: 1.5→2→2.5, increment is 0.5;

[0065] Moving roller 13: axis X-axis coordinate value: 2.25→3→3.75, increment is 0.75;

[0066] Moving roller 14: axis X-axis coordinate value: 3→4→5, increment is 1;

[0067] Moving roller 15: axis X-axis coordinate value: 3.75→5→6.25, increment is 1.25;

[0068] As can be seen from the above, the displacement of the same movable roller group relative to the fixed roller at any time is different. At the same time, the spacing between the movable rollers 430 in the same movable roller group is the same, in other words, the coordinate difference (displacement difference) of the axis of two adjacent movable rollers 430 is equal.

[0069] See also Figure 6 and Figure 7 , combined with Figure 2 and Figure 3 , Figure 6 Shows Figure 2 Enlarged view of area A of the roller-supported conveyor laser cutting machine. Figure 7 Shows Figure 3 An enlarged view of the B area of ​​the movable roller-supported conveyor-type laser cutting machine. The movable roller-supported conveyor-type laser cutting machine 100 also includes a gear rack mechanism 210. A gear rack mechanism 210 is arranged on one side of the frame 200 and includes a roller rack 212 and a plurality of roller gears 214. The roller rack 212 extends along the X-axis. Each roller gear 214 is sleeved on one end of a roller shaft 432 and meshed with the roller rack 212.

[0070] In this embodiment, a gear rack mechanism 210 is provided on both sides of the frame 200, and a roller gear 214 is sleeved on both ends of each roller shaft 432, thereby ensuring that the displacement of both ends of each movable roller 430 along the X-axis direction is consistent during extension and contraction, always maintaining synchronous movement in the X-axis direction, and the axes of each movable roller 430 always remain parallel.

[0071] In this embodiment, the movable roller support conveyor laser cutting machine 100 also includes an X-axis transmission mechanism 330 and an X-axis driver 340. The X-axis transmission mechanism 330 is arranged on the mobile frame 300, and the output end of the X-axis transmission mechanism 330 is connected to at least one roller 432 of the first movable roller group 410 and / or the second movable roller group 420. The X-axis driver 340 is arranged on the mobile frame 300, and the driving end of the X-axis driver 340 is connected to the input end of the X-axis transmission mechanism 330, and the roller 432 can be driven to rotate by the X-axis transmission mechanism 330 to drive the mobile frame 300 to move along the X-axis. When the X-axis driver 340 is working, the X-axis transmission mechanism 330 drives the roller 432 to rotate, and the roller gears 214 at both ends of the roller 432 move along the roller rack 212, thereby driving the mobile frame 300 to move along the X-axis, so that the spacing of the roller 432 on one side increases, and the spacing of the roller 432 on the other side decreases.

[0072] The output end of the X-axis transmission mechanism 330 is connected to the innermost moving roller 430 of the first moving roller group 410 and the second moving roller group 420, and the moving frame 300 is also connected to the innermost moving roller 430 of the first moving roller group 410 and the second moving roller group 420, respectively, and is located between the first moving roller group 410 and the second moving roller group 420. The X-axis driver 340 is a servo motor, and the X-axis transmission mechanism 330 is a belt transmission mechanism, and has two output wheels, one of which is sleeved with a roller shaft 432 of a moving roller 430 and is located between the roller shaft gear 214 and the roller 434.

[0073] It should be noted that, in other embodiments, the movable roller support conveyor laser cutting machine 100 also includes an X-axis rack and an X-axis drive gear, which are used to replace the X-axis transmission mechanism 330. Among them, the X-axis rack is arranged on the frame 200, and the X-axis drive gear is meshed with the X-axis rack. The X-axis driver 340 is arranged on the mobile frame 300, and the driving end of the X-axis driver 340 is connected to the X-axis drive gear, and is used to drive the X-axis drive gear to rotate along the X-axis rack to drive the mobile frame 300 to move along the X-axis. When the X-axis driver 340 is working, its driving end drives the X-axis drive gear to rotate, and the X-axis drive gear moves along the X-axis rack, and drives the mobile frame 300 to move along the X-axis, and drives the first movable roller group 410 and the second movable roller group 420 to extend and retract in the X-axis direction. When extending and retracting, the spacing between the roller shafts 432 on one side increases, and the spacing between the roller shafts 432 on the other side decreases. Specifically, the X-axis driver 340 is disposed at the bottom of the moving frame 300 , the X-axis rack is located below the roller shaft rack 212 , and the X-axis driving gear is laterally meshed with the X-axis rack.

[0074] See also Figures 8 to 10 , Figure 8 FIG. 2 shows a top view of the movable roller supported conveyor type laser cutting machine in this embodiment. Fig. 9 Shows Figure 8 Cross-sectional view of the laser cutting machine along line II, supported by a middle roller. Fig.10 Shows Fig. 9 An enlarged view of the C area of ​​the movable roller-supported conveyor laser cutting machine. The movable roller-supported conveyor laser cutting machine 100 also includes a guide mechanism 220. A guide mechanism 220 is arranged on one side of the frame 200 and includes a guide bar 230 and a plurality of guide components 240. The guide bar 230 extends along the X-axis, and the plurality of guide components 240 are all guided and matched with the guide bar 230. Among them, one end of each roller shaft 432 is connected to a guide component 240, and one end of the mobile frame 300 is connected to at least one guide component 240. The guide mechanism 220 can guide the roller shafts 432 of all movable rollers 430 to move along the X-axis, further improving the consistency of the movement of all movable rollers 430 along the feeding direction.

[0075] Each guide assembly 240 includes a guide block 242, a mounting block 246, and a limit bearing 248. The guide block 242 is provided with a guide groove, and the guide groove is guided and matched with the guide bar 230. The mounting block 246 is arranged on the guide block 242. At least one limit bearing 248 is arranged in the mounting block 246 and sleeved on one end of the roller shaft 432. The limit bearing 248 not only plays a supporting and connecting role, but also does not interfere with the rotation of the roller shaft 432, and can also limit the axial movement of the roller shaft 432.

[0076] In this embodiment, a guide mechanism 220 is provided on both sides of the frame 200 and is located between the two roller racks 212. Both ends of each roller 432 are connected to a guide assembly 240, so that both ends of each movable roller 430 are connected to a limit bearing 248, thereby realizing two-way limit, and any cross section of the movable roller 430 will not have any axial movement, thereby ensuring the stability of the movement of the material belt 102 and preventing deviation, thereby overcoming the defect of the transmission belt feeding material belt being easy to deviate in the traditional technology.

[0077] Furthermore, two limit bearings 248 are provided in each mounting block 246 . The two limit bearings 248 are arranged at both ends of the mounting block 246 in the Y-axis direction and are sleeved on the roller shaft 432 , thereby improving the stability of the connection.

[0078] See also Fig.11 , combined with Fig. 9 and Fig.10 , Fig.11 Another structural diagram of the movable roller supported conveyor laser cutting machine in this embodiment is shown. The movable roller supported conveyor laser cutting machine 100 also includes a plurality of synchronous wheels 610 and a synchronous drive mechanism 611. Each synchronous wheel 610 is rotatably disposed on the roller shaft 432 of a movable roller 430 and is connected to the roller 434 on the roller shaft 432. The synchronous drive mechanism 611 is disposed on the frame 200. The synchronous drive mechanism 611 includes a pulley transmission mechanism 612 and a synchronous driver 613. The pulley transmission mechanism 612 includes a synchronous belt 614, and the synchronous belt 614 connects all the synchronous wheels 610. The synchronous driver 613 is connected to the pulley transmission mechanism 612 and is used to drive the synchronous belt 614 to rotate. The synchronous belt 614 drives the rollers 434 of all movable rollers 430 to rotate through all the synchronous wheels 610. Driven by the synchronous belt 614 , the rollers 434 of all the movable rollers 430 rotate in the same direction and at the same speed, and the speed of the rollers 434 of all the movable rollers 430 can be easily controlled, thereby controlling the feeding speed of the material belt 102 by controlling the speed of the rollers 434 .

[0079] In order to achieve the same linear speed of the roller 434 of the movable roller 430 as that of the synchronous belt 614 , the synchronous wheel 610 is a gear, and the pitch circle diameter of the synchronous wheel 610 is equal to the outer diameter of the roller 434 , which makes it easier to control the rotation speed of the roller 434 .

[0080] The linear speed of the roller 434 of each movable roller 430 is the same as the feeding speed of the material belt 102. At this time, there is no relative sliding between the roller 434 of each movable roller 430 and the material belt 102, thereby avoiding friction marks on the surface of the material belt 102, ensuring smooth feeding and improving the quality of the cut products.

[0081] In this embodiment, the synchronous wheel 610 is connected to the roller 434 via a connecting sleeve. The connecting sleeve can be rotatably mounted on the roller shaft 432, and one end of the connecting sleeve is fixedly connected to one end of the roller 434. The roller 434 and the roller shaft 432 are connected via a bearing. The synchronous wheel 610 is fixedly mounted on the connecting sleeve, and then the synchronous belt 614 drives the synchronous wheel 610 to rotate. The synchronous wheel 610 drives the roller 434 to rotate via the connecting sleeve.

[0082] In this embodiment, the rollers 432 of the first fixed shaft and the second fixed shaft are also provided with synchronous wheels 610 , which are also driven by the synchronous belt 614 , thereby driving the rollers 434 of the first fixed shaft and the second fixed shaft to rotate.

[0083] In order to improve the driving effect of the synchronous belt 614 , a plurality of pressure blocks are provided on the frame 200 , and a rotatable tensioning wheel is provided on both sides of each pressure block. The two tensioning wheels press the synchronous belt 614 on both sides of a synchronous wheel 610 to tension the synchronous belt 614 .

[0084] See also Fig.12 , Fig.12 The structure diagram of the movable roller supported conveying type laser cutting machine in the second embodiment of the present invention is shown. The main differences between the movable roller supported conveying type laser cutting machine 100 in this embodiment and the movable roller supported conveying type laser cutting machine 100 in the first embodiment are as follows:

[0085] In the movable roller support conveying type laser cutting machine 100 of this embodiment, a roller reducer 520 + a ball spline shaft 522 are used to replace the parallelogram mechanism in the first embodiment, that is, the movable roller support conveying type laser cutting machine 100 also includes a plurality of roller reducers 520, a ball spline shaft 522 and an axial driver 524. Among them, the plurality of roller reducers 520 are connected to all movable rollers 430 in a one-to-one correspondence. The ball spline shaft 522 runs through all roller reducers 520. The driving end of the axial driver 524 is connected to one end of the ball spline shaft 522, and is used to drive the ball spline shaft 522 to rotate, so that all roller reducers 520 move along the ball spline shaft 522, and then drive all movable rollers 430 to move.

[0086] In the same movable roller group, the ratio of the displacement of each movable roller 430 along the X-axis direction relative to the fixed roller on the same side can be 1:2:3:4..., the spacing between the movable rollers 430 of the first movable roller group 410 on one side of the movable frame 300 is increased, and the spacing between the movable rollers 430 of the second movable roller group 420 on the other side of the movable frame 300 is reduced. Compared with the first embodiment adopting the parallelogram mechanism, the movement of the roller shaft 432 of each movable roller 430 along the X-axis direction is equivalent.

[0087] In this embodiment, the roller reducer 520 is the sleeve portion of the ball spline. Since the ball spline shaft 522 of the ball spline can only perform rotational motion but cannot move axially, the sleeve portion of the ball spline can move axially of the ball spline shaft 522.

[0088] In this embodiment, the movable roller support conveyor laser cutting machine 100 further includes a plurality of roller drive mechanisms 620, which are used to replace the synchronous wheel 610 + synchronous drive mechanism 611 in the first embodiment. Each roller drive mechanism 620 is provided on a movable roller 430, and includes a speed reduction mechanism 622 and a roller driver 624. The output end of the speed reduction mechanism 622 is connected to the roller 434 of the movable roller 430, and the roller driver 624 is fixed to one end of the roller shaft 432 of the movable roller 430 through a support and connected to the input end of the speed reduction mechanism 622, and is used to drive the speed reduction mechanism 622 to drive the roller 434 to rotate. In addition, a roller drive mechanism 620 is also provided on the roller shaft 432 of the first fixed roller 440 and the second fixed roller 450, which is used to drive the roller 434 to rotate.

[0089] In this embodiment, by controlling the roller driver 624, the linear speed of the roller 434 of each movable roller 430 is controlled to be the same as the feeding speed of the material belt 102. There is no relative sliding between the roller 434 of each movable roller 430 and the material belt 102, there are no friction marks on the surface of the material belt 102, and the feeding is smooth.

[0090] In this embodiment, the speed reduction mechanism 622 is a belt transmission mechanism, and the transmission wheel at its input end is smaller than the transmission wheel at its output end, thereby playing a role of speed reduction.

[0091] As for other aspects of the movable roller supported conveying type laser cutting machine 100 of this embodiment, they are basically the same as other aspects of the movable roller supported conveying type laser cutting machine 100 of the above-mentioned first embodiment. The specific contents can be referred to the description of the above-mentioned first embodiment and will not be repeated here.

[0092] See also Fig.13 , Fig.13The structure diagram of the movable roller supported conveying type laser cutting machine in the third embodiment of the present invention is shown. The main differences between the movable roller supported conveying type laser cutting machine 100 in this embodiment and the movable roller supported conveying type laser cutting machine 100 in the first embodiment are as follows:

[0093] In the movable roller supported conveying type laser cutting machine 100 of this embodiment, a roller shaft driver 530 is used to replace the parallelogram mechanism in the above-mentioned first embodiment, that is, the movable roller supported conveying type laser cutting machine 100 also includes a plurality of roller shaft drivers 530, each roller shaft driver 530 is arranged on the roller shaft 432 of a movable roller 430 through a bearing, and the driving end of the roller shaft driver 530 is connected to the roller shaft gear 214 on the roller shaft 432, and is used to drive the roller 430 shaft gear to move along the roller shaft rack 212.

[0094] In the same movable roller group, the ratio of the displacement of each movable roller 430 along the X-axis direction relative to the fixed roller on the same side can be 1:2:3:4..., the spacing between the movable rollers 430 of the first movable roller group 410 on one side of the movable frame 300 is increased, and the spacing between the movable rollers 430 of the second movable roller group 420 on the other side of the movable frame 300 is reduced. Compared with the first embodiment adopting the parallelogram mechanism, the movement of the roller shaft 432 of each movable roller 430 along the X-axis direction is equivalent.

[0095] In this embodiment, the roller drive 530 is a motor, the rotor of the motor is arranged around the stator, the stator is installed on the roller 432 through a bearing, and the rotor of the motor is connected to the roller gear 214.

[0096] In this embodiment, the movable roller support conveyor laser cutting machine 100 further includes a plurality of roller drive mechanisms 620, which are used to replace the synchronous wheel 610 + synchronous drive mechanism 611 in the first embodiment. Each roller drive mechanism 620 is provided on a movable roller 430, and includes a speed reduction mechanism 622 and a roller driver 624. The output end of the speed reduction mechanism 622 is connected to the roller 434 of the movable roller 430, and the roller driver 624 is fixed to one end of the roller shaft 432 of the movable roller 430 through a support and connected to the input end of the speed reduction mechanism 622, and is used to drive the speed reduction mechanism 622 to drive the roller 434 to rotate. In addition, a roller drive mechanism 620 is also provided on the roller shaft 432 of the first fixed roller 440 and the second fixed roller 450, which is used to drive the roller 434 to rotate.

[0097] In this embodiment, by controlling the roller driver 624, the linear speed of the roller 434 of each movable roller 430 is controlled to be the same as the feeding speed of the material belt 102. There is no relative sliding between the roller 434 of each movable roller 430 and the material belt 102, there are no friction marks on the surface of the material belt 102, and the feeding is smooth.

[0098] In this embodiment, the speed reduction mechanism 622 is a belt transmission mechanism, and the transmission wheel at its input end is smaller than the transmission wheel at its output end, thereby playing a role of speed reduction.

[0099] As for other aspects of the movable roller supported conveying type laser cutting machine 100 of this embodiment, they are basically the same as other aspects of the movable roller supported conveying type laser cutting machine 100 of the above-mentioned first embodiment. The specific contents can be referred to the description of the above-mentioned first embodiment and will not be repeated here.

[0100] In summary, the movable roller supported conveyor laser cutting machine 100 of the present invention does not use a transmission belt for feeding, thereby effectively avoiding the shortcomings of the transmission belt being easily damaged, easily aged, and difficult to maintain; roller shaft gears 214 are provided at both ends of the roller shaft 432 of each movable roller 430, which are meshed with the roller shaft racks 212 on both sides of the frame 200, thereby realizing the synchronous movement of the two ends of each movable roller 430, and a guide mechanism 220 is provided to guide the movement of the movable roller 430, so that the two ends of each movable roller 430 always keep synchronous movement, and the roller shafts 432 always keep parallel; limit bearings 248 are provided at both ends of the roller shaft 432 of each movable roller 430 to realize two-way limit, and any cross section of the movable roller 430 will not move along its axial direction, thereby ensuring the consistency of the feeding direction of the movable roller 430, and the feeding will not deviate.

[0101] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A moving roller supported conveying type laser cutting machine, characterized in that: include: frame; A movable frame, the movable frame is arranged on the frame and can be moved in the X-axis direction; A laser cutting head, the laser cutting head can be movably arranged on the mobile frame; the transporting mobile frame has a crossbeam extending along the Y axis, and the transporting laser cutting head moves along the Y axis on the mobile frame; as well as A supporting roller group, the supporting roller group is laid on the frame and includes a first movable roller group and a second movable roller group, the first movable roller group is arranged on one side of the moving frame and connected to the moving frame, and the second movable roller group is arranged on the other side of the moving frame and connected to the moving frame; Wherein, the first movable roller group and the second movable roller group each include a plurality of movable rollers spaced side by side along the X-axis, each movable roller includes a roller shaft and a roller drum, both ends of the roller shaft are arranged on the frame and can be movably arranged in the X-axis direction, and the roller drum can be rotatably sleeved between the two ends of the roller shaft and is used to support the material strip; It also includes an X-axis transmission mechanism and an X-axis driver; the X-axis transmission mechanism is arranged on the mobile frame, and the output end of the X-axis transmission mechanism is connected to at least one roller shaft of the first movable roller group and / or the second movable roller group; the X-axis driver is arranged on the mobile frame, and the driving end of the X-axis driver is connected to the input end of the X-axis transmission mechanism, and the roller shaft is driven to rotate through the X-axis transmission mechanism, thereby driving the mobile frame to move along the X-axis.

2. The movable roller supported conveying type laser cutting machine according to claim 1, characterized in that: In the first movable roller group, the distance between two adjacent movable rollers is equal, and the axes of all the movable rollers are arranged in parallel; In the second movable roller group, the distances between two adjacent movable rollers are equal, and the axes of all the movable rollers are arranged in parallel.

3. The movable roller supported conveying type laser cutting machine according to claim 1, characterized in that: Also includes: A guide mechanism, one of the guide mechanisms is disposed on one side of the frame and comprises a guide bar and a plurality of guide components, the guide bar extends along the X-axis, and the plurality of guide components are all in guiding cooperation with the guide bar; Wherein, one end of each roller shaft is connected to one of the guide components, and one end of the movable frame is connected to at least one of the guide components.

4. The movable roller supported conveying type laser cutting machine according to claim 1, characterized in that: Also includes: A plurality of synchronous wheels and synchronous drive mechanisms, each synchronous wheel is rotatably arranged on the roller shaft of one of the movable rollers and connected to the roller on the roller shaft; the synchronous drive mechanism is arranged on the frame, the synchronous drive mechanism comprises a pulley transmission mechanism and a synchronous driver, the pulley transmission mechanism comprises a synchronous belt, and the synchronous belt connects all the synchronous wheels; the synchronous driver is connected to the pulley transmission mechanism and is used to drive the synchronous belt to rotate, and the synchronous belt drives the rollers of all the movable rollers to rotate through all the synchronous wheels; or, Multiple roller driving mechanisms, each of which is arranged on one of the movable rollers, and includes a reduction mechanism and a roller driver; wherein the output end of the reduction mechanism is connected to the roller of the movable roller, and the roller driver is fixed to one end of the roller shaft of the movable roller through a support and connected to the input end of the reduction mechanism, and is used to drive the reduction mechanism to drive the roller to rotate.

5. The movable roller supported conveying type laser cutting machine according to claim 4, characterized in that: The synchronous wheel is a gear, and the pitch circle diameter of the synchronous wheel is equal to the outer diameter of the roller.

6. The movable roller supported conveying type laser cutting machine according to claim 4, characterized in that: The linear speed of each of the movable rollers is the same as the feeding speed of the material belt.

7. The movable roller supported conveying type laser cutting machine according to any one of claims 1 to 6, characterized in that: Also includes: The telescopic mechanism is a parallelogram mechanism; wherein one of the parallelogram mechanisms is rotatably connected to all ends on the same side of the first movable roller group, and can drive the first movable roller group to move through telescopic movement; the other parallelogram mechanism is rotatably connected to all ends on the same side of the second movable roller group, and can drive the second movable roller group to move through telescopic movement.

8. The movable roller supported conveying type laser cutting machine according to claim 7, characterized in that: The supporting roller group further includes a first fixed roller and a second fixed roller; The first fixed roller is fixed to one end of the frame and is disposed adjacent to the first movable roller group, and one end of the first fixed roller is rotatably connected to one of the parallelogram mechanisms; The second fixed roller is fixed to the other end of the frame and is disposed adjacent to the second movable roller group. One end of the second fixed roller is rotatably connected to another parallelogram mechanism.

9. The movable roller supported conveying type laser cutting machine according to claim 7, characterized in that: Also includes: An X-axis rack, an X-axis driving gear and an X-axis driver, wherein the X-axis rack is arranged on the frame; The X-axis driving gear is meshed with the X-axis rack; the X-axis driver is disposed on the mobile frame, and the driving end of the X-axis driver is connected to the X-axis driving gear and is used to drive the X-axis driving gear to rotate along the X-axis rack to drive the mobile frame to move along the X-axis; or, A rack and pinion mechanism, an X-axis transmission mechanism and an X-axis driver, wherein the rack and pinion mechanism is arranged on one side of the frame and comprises a roller rack and a plurality of roller gears, wherein the roller rack extends along the X-axis, and each roller gear is sleeved on one end of a roller shaft and meshed with the roller rack; the X-axis transmission mechanism is arranged on the mobile frame, and the output end of the X-axis transmission mechanism is connected to at least one roller shaft of the first movable roller group and / or the second movable roller group; the X-axis driver is arranged on the mobile frame, and the driving end of the X-axis driver is connected to the input end of the X-axis transmission mechanism, and can drive the roller shaft to rotate through the X-axis transmission mechanism, so as to drive the mobile frame to move along the X-axis.

10. The movable roller supported conveying type laser cutting machine according to any one of claims 1 to 6, characterized in that: Also includes: A plurality of roller reducers, ball spline shafts and axial drivers, wherein the plurality of roller reducers are connected to all the movable rollers in a one-to-one correspondence; the ball spline shafts penetrate all the roller reducers; The driving end of the axial driver is connected to one end of the ball spline shaft and is used to drive the ball spline shaft to rotate so that all the roller reducers move along the ball spline shaft; or, A rack and pinion mechanism and a plurality of roller shaft drivers, wherein the rack and pinion mechanism is arranged on one side of the frame and comprises a roller shaft rack and a plurality of roller shaft gears, the roller shaft rack extends along the X-axis, each roller shaft gear is sleeved on one end of a roller shaft and meshed with the roller shaft rack; each roller shaft driver is arranged on the roller shaft of a movable roller through a bearing, the driving end of the roller shaft driver is connected to the roller shaft gear on the roller shaft, and is used to drive the roller shaft gear to move along the roller shaft rack.

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