Roller shutter door structure of laser cutting machine and laser cutting machine

Abstract

The utility model discloses a roller shutter door structure of a laser cutting machine and the laser cutting machine, and belongs to the field of laser processing equipment. According to the technical scheme, the roller shutter door structure of the laser cutting machine comprises a frame, a front door assembly and a top plate assembly are installed on the frame, an L-shaped guide rail is further arranged on the frame, the front door assembly comprises a plurality of door plate units hinged to one another, and a lower guide assembly is arranged on the side edge of the lowermost door plate unit. The front side edge of the top plate assembly is hinged to the door plate unit located at the upper end, an upper guide assembly is arranged at the hinged position of the top plate assembly and the door plate unit, and horizontal guide assemblies are arranged on the two side edges of the top plate assembly. And a lifting driving structure is arranged between the lowermost door plate unit and the frame. A part of the top panel is integrated into the roller shutter door structure, so that the top panel can slide along the guide rails, a larger free space is formed in the large surrounding part for operation of the laser cutting machine, a movable part of the roller shutter door is farther away from a machining area, and external interference such as slag and smoke can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of laser processing equipment, in particular to a rolling door structure of a laser cutting machine and a laser cutting machine. Background Art

[0002] During the processing of the laser cutting machine, high brightness, high temperature and slag splashing will occur. In order to reduce the impact of these phenomena on the staff and the workshop environment, some laser cutting machines are equipped with a large external enclosure to block the strong light and slag. In order to facilitate the loading and unloading of the laser cutting machine, the large enclosure is equipped with a switch door structure. However, the switch door of the large enclosure used in the prior art adopts a vertical lifting form. When the lifting door is raised, it needs to occupy a larger upper space. When the user's factory space is small or when used in a laboratory environment, it is impossible to equip the large enclosure.

[0003] In response to this, some laser cutting machines use a flip-type switch door structure, that is, when the switch door is opened, the door panel is flipped from the vertical state of the closed state to the horizontal state, and stored in the large surrounding component, under the top sheet metal.

[0004] However, although this structure does not increase the overall vertical height, the switch door panel and the top frame and sheet metal structure of the large surround are stacked up and down inside the large surround. In addition, the motion guide and drive structure of the switch door occupy a large amount of space at the top of the large surround, compressing the height space of the laser cutting machine. Summary of the invention

[0005] The utility model aims to solve the problem that the current flip-type switch door occupies a large internal space of the surrounding components and provides a rolling door structure for a laser cutting machine.

[0006] To solve the above problems, the technical solution adopted by the utility model is a rolling door structure of a laser cutting machine, comprising a frame, a front door assembly and a top panel assembly are installed on the frame, and an L-shaped guide rail is also provided on the frame, the front door assembly comprises a plurality of door panel units, the plurality of door panel units are arranged up and down and the edges of adjacent door panel units are hinged to each other, a lower guide assembly is provided on the side edge of the door panel unit located at the bottom, the front side edge of the top panel assembly is hinged to each other with the door panel unit located at the upper end, an upper guide assembly is provided at the hinge of the two, and horizontal guide assemblies are also provided on both side edges of the top panel assembly, the lower guide assembly, the upper guide assembly and the horizontal guide assembly can be slidably installed in the guide rail; a lifting drive structure is also provided between the door panel unit located at the bottom and the frame. In this method, a part of the top panel of the large enclosure is integrated into the rolling door structure, so that it can slide along the guide rail and be pushed by the door panel assembly. When the door panel is raised, it pushes the top panel assembly back, and the door panel enters the original position of the top panel assembly. With this structure, there is a larger free space in the large enclosure component for the operation of the laser cutting machine. At the same time, the movable parts of the rolling door are further away from the processing area, which can reduce external interference such as slag and smoke.

[0007] Preferably, the top panel assembly includes a plurality of movable panel units, which are arranged front and back in a stepped shape, the movable panel unit at the front end is hinged to the door panel unit at the top end, and the horizontal guide assemblies are arranged on both side edges of the movable panel unit at the rear side. The top panel assembly adopts a multi-stage folding structure, which reduces the required front and rear width.

[0008] Preferably, a guide wheel is provided at the rear side of the bottom of the movable panel unit, and a guide groove is provided on the top surface of the movable panel unit in the front-rear direction, wherein the guide wheel is located in the guide groove of the adjacent movable panel unit and can slide along the guide groove; a pushing structure is also provided between two adjacent movable panel units. The guide wheel and the guide groove can improve the smoothness of the storage and unfolding process, and can provide support for the rear side of the movable panel unit; and the linkage recovery of each movable panel unit is realized by the pushing structure.

[0009] Preferably, the pushing structure includes a lower convex portion arranged on the front edge of the movable panel unit, the lower convex portion extends downward relative to the bottom surface of the movable panel unit, and the lower convex portion can abut against the front edge of the movable panel unit adjacent to the rear side. The push-type linkage is adopted, and the structure is simple and effective.

[0010] Preferably, the top plate assembly further comprises a fixed plate unit, which is located at the rear lower side of the movable plate unit, the top of the fixed plate unit is provided with the guide groove, and the guide wheel of the rearmost movable plate unit is located in the guide groove of the fixed plate unit.

[0011] Preferably, the frame includes a column, the vertical section of the guide rail is fixed on the column, the lifting drive structure includes a plurality of driving members and a driving motor arranged along the column, the driving member includes a coaxially fixedly connected gear and a driven pulley, a rack is vertically arranged on the door panel unit located at the bottom, the rack can mesh with a gear at any position, a driving pulley is also arranged on the column, the output shaft of the driving motor is connected to the driving pulley, and a transmission belt is arranged around the driving pulley and each driven pulley. During the rising process of the door panel unit, the rack meshes with the gears of each driving member in turn, and the full stroke movement of the door panel unit is cleverly achieved without increasing the length of the rack, so that each door panel unit is convenient for folding.

[0012] Preferably, there are two uprights, both of which are provided with driving pulleys and driving members, the two driving pulleys are connected by a synchronous shaft, and the output shaft of the driving motor is connected to the synchronous shaft; racks are provided on both sides of the lowermost door panel unit, and the racks on both sides are respectively engaged with the driving members on both sides. The use of two-side drive ensures the balance of the door panel unit when it is lifted or lowered.

[0013] Preferably, the upper guide assembly includes an articulated seat, a composite bearing and a connecting arm are installed on the articulated seat, the top plate assembly is fixedly connected to the articulated seat, one end of the connecting arm is hinged to the articulated seat, the other end of the connecting arm is fixedly connected to the upper edge of the door panel unit located at the top, an obtuse angle is formed between the connecting arm and the door panel unit, the articulated axis between the connecting arm and the articulated seat is colinear with the rotating axis of the composite bearing, and the composite bearing is installed in the guide rail. The connecting arm is provided to extend the forward extension distance of the top door panel unit to ensure that it can be closed in place; on the other hand, the dead point of movement can be avoided when the door panel unit is raised, and the door opening is smoother.

[0014] Preferably, a transition panel is also provided on the connecting arm, and the transition panel covers the gap between the uppermost door panel unit and the front edge of the top panel assembly, so as to further improve the panel coverage and optimize the protection performance.

[0015] On the other hand, the utility model also provides a laser cutting machine, including a large enclosure component, in which the above-mentioned laser cutting machine rolling door structure is installed, the front door assembly is located on the side of the large enclosure component, and the top plate assembly is located on the top surface of the large enclosure component.

[0016] It can be seen from the above technical solutions that the advantages of the utility model are as follows: in this method, a part of the top panel of the large enclosure is integrated into the rolling door structure, so that it can slide along the guide rail, and when the door panel is raised, the top plate assembly is pushed back. With this structure, there is a larger free space in the large enclosure component for the operation of the laser cutting machine, and at the same time, the movable parts of the rolling door are further away from the processing area, which can reduce external interference such as slag and smoke; the driving structure is cleverly designed to further reduce the space occupied inside the large enclosure, while ensuring the smoothness and long stroke of the drive, and the rolling door can be lifted and lowered smoothly; at the same time, the laser cutting machine provided by this solution has a larger internal space of the large enclosure while ensuring its own compact size, providing a larger operating space for the cutting machine body, and at the same time, the rolling door is raised and away from the processing area to reduce the risk of damage, and when the rolling door is closed, the large enclosure component is better sealed to ensure the isolation of smoke and flash. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the closed state of the first embodiment of the utility model.

[0019] Figure 2 It is a schematic diagram of the structure of the driving member in the first embodiment of the utility model.

[0020] Figure 3 It is a schematic structural diagram of the upper guide assembly in the first embodiment of the utility model.

[0021] Description of main reference numerals

[0022] 1. Frame, 2. Guide rail, 3. Door panel unit, 4. Movable panel unit, 5. Fixed panel unit, 6. Guide groove, 7. Gear, 8. Driven pulley, 9. Rack, 10. Driving motor, 11. Synchronous shaft, 12. Articulated seat, 13. Connecting arm, 14. Composite bearing, 15. Transmission belt, 16. Transition panel. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0024] Embodiment 1

[0025] like Figure 1-3 A rolling door structure of a laser cutting machine is shown, including a frame 1. The rolling door structure forms a part of the large enclosure of the laser cutting machine when in use. Therefore, the frame referred to in this embodiment can be the frame or skeleton structure of the large enclosure of the laser cutting machine itself, or it can be an independent frame, which is installed on the large enclosure of the laser cutting machine when in use. In the following description, along the direction perpendicular to the door opening, with the installation state of the rolling door structure as a reference, the direction toward the outside of the large enclosure is front, and the opposite is rear, that is, in the applied laser cutting machine, the cutting machine body is located behind the rolling door panel.

[0026] Corresponding to the door opening position of the large enclosure component, the frame 1 includes columns on both sides, and an open area for opening the door is formed between the columns on both sides. L-shaped guide rails 2 are installed on the columns on both sides. The guide rails 2 are parallel to each other. The guide rails 2 include vertical sections and horizontal sections. The vertical sections are fixedly installed on the columns. For the horizontal sections, a crossbeam can be further arranged at the top of the columns to fix the horizontal sections. Alternatively, if the structural strength of the large enclosure component allows, the horizontal sections can also be directly fixed on the top sheet metal of the large enclosure component. The front door assembly and the top plate assembly are installed between the guide rails 2 on both sides. The front door assembly includes a plurality of door panel units 3 ( Figure 1 The embodiment shown is 3), the top plate assembly includes a plurality of movable plate units 4 ( Figure 1 The embodiment shown is 2) and a fixed plate unit 5:

[0027] by Figure 1 Taking the closed state shown in the figure as an example, in the closed state, each door panel unit 3 is located in the same vertical plane, and the adjacent edges of the upper and lower adjacent door panel units are hinged to each other; the fixed panel unit 5 is located at the top rear of the rolling door structure, and the movable panel unit 4 is arranged in front of the fixed panel unit 5. The movable panel unit 4 and the fixed panel unit 5 form a complete plane in the top view direction (that is, forming a part of the top surface of the large surrounding component), and in the height direction, the height positions of the movable panel unit 4 and the fixed panel unit 5 decrease from front to back, that is, in Figure 1 In the closed state shown, a stepped arrangement is formed. Figure 3The door panels are arranged in a stacked manner in the open state shown in the figure; the top edge of the door panel unit 3 at the top is hinged with the front edge of the movable panel unit 4 at the front, and an upper guide assembly is provided at the hinge of the two. The movable panel unit 4 is also provided with a horizontal guide assembly, and a pushing structure is provided between the two movable panel units 4 (for other embodiments with more movable panel units, a pushing structure is provided between two adjacent movable panel units), and the pushing structure includes a lower convex portion provided at the front edge of the movable panel unit, which can be in the form of a baffle or a convex block, and the lower convex portion extends downwardly relative to the bottom surface of the movable panel unit, and the lower convex portion can abut against the front edge of the movable panel unit adjacent to the rear side thereof, and then when the front movable panel unit basically coincides with the rear movable panel unit, the lower convex portion abuts against the rear movable panel unit The front edge of the movable panel unit is used to push the rear movable panel unit to move backward. A guide wheel is also provided on the rear side of the bottom of each movable panel unit 4. The top surface of the rear movable panel unit 4 and the top surface of the fixed panel unit 5 are provided with a guide groove 6 arranged along the front-to-back direction. The guide wheel cooperates with the guide groove of the adjacent panel. The front end of the guide groove is a closed end to prevent the guide wheel from slipping out of the guide groove forward. At the same time, the guide wheel abuts against the groove wall of the closed end, which can play the role of "pulling" the rear movable panel unit when the movable panel unit is expanded; at the same time, a lower guide assembly is provided between the guide rail 2, and the upper guide assembly, the lower guide assembly and the horizontal guide assembly are all arranged on the two side edges of the corresponding panels (i.e., the movable panel unit and the door panel unit), and are installed in the guide rails 2 on both sides. A lifting drive structure is provided between the door panel unit 3 located at the bottom and the frame 1.

[0028] With this structure, during the door opening process, the lifting drive structure drives the lowest door panel unit to rise along the vertical section of the guide rail 2, and pushes the middle and upper door panel units to move. Since the highest door panel unit is hinged to the movable panel unit and is restricted by the horizontal section of the guide rail, the movement direction of the hinged position is changed to horizontal backward movement, thereby pushing the movable panel unit to move backward. Through the pushing structure, the two movable panel units are moved and stacked on top of the fixed panel unit, and the middle and upper door panel units are moved and stored in the original position of the movable panel unit.

[0029] In the above-mentioned movement process, in order to optimize the force form at the L-shaped turning point and avoid jamming, the upper guide assembly is a composite structure, including an articulated seat 12, which is installed at both ends of the front edge of the front movable panel unit, and a composite bearing 14 and a connecting arm 13 are installed on the articulated seat 12. The top plate assembly is fixedly connected to the articulated seat 12, one end of the connecting arm 13 is hinged to the articulated seat 12, and the other end of the connecting arm 13 is fixedly connected to the upper edge of the topmost door panel unit. There is an obtuse angle between the connecting arm 13 and the door panel unit, that is, the connecting arm extends upward to the rear side of the door panel unit, so that the door panel unit The hinge is a beveled structure, and the force-bearing position and the movement position are staggered front and back to avoid movement dead points. At the same time, transition panels 15 are also installed on the connecting arms on both sides. The transition panel covers the gap between the top door panel unit and the front edge of the movable panel unit. The rotation axis of the composite bearing 14 is along the axis of the hinge shaft between the connecting arm 13 and the hinge seat 12, and the composite bearing is installed in the guide rail 2; the lower guide assembly and the horizontal guide assembly can directly use composite bearings (the composite bearings are standard parts, not specifically the parts marked 14 in the accompanying drawings), and can be installed at the corresponding panel side edges.

[0030] like Figure 1 , 2 As shown, in this embodiment, the lifting drive structure includes a driving motor 10, and a plurality of driving members arranged on the two side columns along the vertical direction of the columns. The upper parts of the two columns are respectively installed with driving pulleys through the mounting seats. The two driving pulleys are connected by a synchronous shaft 11. The driving motor 10 drives the synchronous shaft 11 to rotate. Figure 1 In the structure, the driving motor 10 is installed on a side column and is connected to the synchronous shaft 11 through a bevel gear pair. In addition, in other embodiments, the through motor can also be used as the driving motor, and the output shaft of the through motor is directly used as the synchronous shaft, and driving pulleys are installed at both ends; the driving member includes a gear 7 and a driven pulley 8, and the gear 7 and the driven pulley 8 are coaxially fixedly connected through a connecting short shaft, and the connecting short shaft is rotatably installed on the column through a mounting seat. The driving pulley and each driven pulley are jointly surrounded by a transmission belt 15, and a rack 9 is vertically arranged on the lowest door panel unit, and the rack 9 can mesh with the gear 7 at any position, that is, Figure 1 , 3 As shown, the length of the rack 9 cannot exceed the vertical height of the door panel unit. In order to meet the travel requirements of the rack drive, multiple gears 7 (i.e., driving members) are provided to mesh with the rack in sequence. When the lower end of the gear sleeve is about to disengage from the gear, its upper end can just mesh with the gear at the adjacent position above, and the multiple gears rotate synchronously, so that the rack cleverly obtains a travel that exceeds its own length.

[0031] Embodiment 2

[0032] Based on the rolling door structure given in Example 1, this embodiment further provides a laser cutting machine, which includes a large surrounding component, in which the laser cutting machine rolling door structure described in Example 1 is installed, the front door assembly is located on the side of the large surrounding component, and the top plate assembly serving as a switching door structure is located on the top surface of the large surrounding component, forming a part of the top panel.

[0033] It can be seen from the above embodiments that the beneficial effect of the utility model lies in that the present solution integrates a part of the top panel of the large enclosure into the rolling door structure, so that it can slide along the guide rail, and when the door panel is raised, the top plate assembly is pushed back. With this structure, there is a larger free space in the large enclosure component for the operation of the laser cutting machine, and at the same time, the movable parts of the rolling door are further away from the processing area, which can reduce external interference such as slag and smoke; the driving structure is cleverly designed to further reduce the space occupancy inside the large enclosure, while ensuring the smoothness and large stroke of the drive, and the rolling door is smoothly raised and lowered; at the same time, the laser cutting machine provided by this solution has a larger internal space of the large enclosure while ensuring its own compact size, providing a larger operating space for the cutting machine body, and at the same time, the rolling door is raised and away from the processing area to reduce the risk of damage, and when the rolling door is closed, the large enclosure component is better sealed to ensure the isolation of smoke and flash.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rolling door structure for a laser cutting machine, comprising a frame (1), on which a front door assembly and a top plate assembly are mounted, characterized in that: The frame is also provided with an L-shaped guide rail (2), the front door assembly comprises a plurality of door panel units (3), the plurality of door panel units (3) are arranged vertically and the edges of adjacent door panel units are hinged to each other, a lower guide assembly is provided on the side edge of the door panel unit (3) located at the bottom, the front side edge of the top panel assembly is hinged to each other with the door panel unit (3) located at the top, an upper guide assembly is provided at the hinge of the two, and horizontal guide assemblies are also provided on the two side edges of the top panel assembly, the lower guide assembly, the upper guide assembly and the horizontal guide assembly can all be slidably installed in the guide rail (2); a lifting drive structure is also provided between the door panel unit located at the bottom and the frame (1).

2. The rolling door structure of the laser cutting machine according to claim 1, characterized in that: The top panel assembly comprises a plurality of movable panel units (4), the plurality of movable panel units (4) being arranged front to back in a stepped manner, the movable panel unit (4) at the front end being hinged to the door panel unit (3) at the top end, and the horizontal guide assembly being arranged on both side edges of the movable panel unit (4) at the rear side.

3. The rolling door structure of the laser cutting machine according to claim 2, characterized in that: A guide wheel is provided at the rear side of the bottom of the movable panel unit (4), and a guide groove (6) is provided on the top surface of the movable panel unit (4) along the front-rear direction. The guide wheel is located in the guide groove (6) of the adjacent movable panel unit and can slide along the guide groove (6). A pushing structure is also provided between two adjacent movable panel units.

4. The rolling door structure of the laser cutting machine according to claim 3, characterized in that: The pushing structure includes a lower convex portion arranged on the front edge of the movable panel unit, the lower convex portion extends downward relative to the bottom surface of the movable panel unit, and the lower convex portion can abut against the front edge of the movable panel unit adjacent to the rear side.

5. The rolling door structure of the laser cutting machine according to claim 4, characterized in that: The top plate assembly further comprises a fixed plate unit (5), the fixed plate unit (5) being located at the rear lower side of the movable plate unit, the guide groove (6) being provided at the top of the fixed plate unit (5), and the guide wheel of the movable plate unit located at the rear is located in the guide groove of the fixed plate unit.

6. The rolling door structure of a laser cutting machine according to any one of claims 1 to 5, characterized in that: The frame (1) comprises a column, the vertical section of the guide rail (2) is fixed on the column, the lifting drive structure comprises a plurality of driving members and a driving motor (10) arranged along the column, the driving member comprises a coaxially fixedly connected gear (7) and a driven pulley (8), a rack (9) is vertically arranged on the door panel unit located at the bottom, the rack (9) can mesh with the gear (7) at any position, a driving pulley is also arranged on the column, the output shaft of the driving motor (10) is connected to the driving pulley, and a transmission belt is arranged around the driving pulley and each driven pulley.

7. The rolling door structure of the laser cutting machine according to claim 6, characterized in that: Two upright posts are provided, and both upright posts are provided with a driving pulley and a driving member, the two driving pulleys are connected via a synchronous shaft (11), and the output shaft of the driving motor (10) is connected to the synchronous shaft (11); racks (9) are provided on both side edges of the door panel unit located at the bottom, and the racks (9) on both sides are respectively engaged with the driving members on both sides.

8. The rolling door structure of a laser cutting machine according to any one of claims 1 to 5, characterized in that: The upper guide assembly comprises an articulated seat (12), a composite bearing (14) and a connecting arm (13) are mounted on the articulated seat (12), the top plate assembly is fixedly connected to the articulated seat (12), one end of the connecting arm (13) is hinged to the articulated seat (12), the other end of the connecting arm (13) is fixedly connected to the upper edge of the door panel unit located at the top, an obtuse angle is formed between the connecting arm (13) and the door panel unit, a hinge axis between the connecting arm (13) and the articulated seat (12) is colinear with a rotation axis of the composite bearing (14), and the composite bearing is mounted in the guide rail (2).

9. The rolling door structure of the laser cutting machine according to claim 8, characterized in that: A transition panel (15) is also provided on the connecting arm (13), and the transition panel covers the gap between the uppermost door panel unit and the front edge of the top panel assembly.

10. A laser cutting machine, comprising a large enclosure component, characterized in that: The large enclosure component is installed with a laser cutting machine rolling door structure as described in any one of claims 1 to 9, the front door assembly is located on the side of the large enclosure component, and the top plate assembly is located on the top surface of the large enclosure component.

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