Laser machine for processing steel fireproof door

Abstract

The invention discloses a laser machine for machining a steel fireproof door, and relates to the technical field of laser cutting machining of steel fireproof doors. The laser machine for machining the steel fireproof door comprises a bearing lathe bed, a laser cutting system arranged on the upper portion of the bearing lathe bed, two C-shaped rail seats fixedly connected to the front and back opposite sides of the bearing lathe bed correspondingly, and a groove-shaped workbench connected between the two C-shaped rail seats in a sliding mode. A self-pushing and auxiliary scraping integrated mechanism used for automatically pushing out a machined steel fireproof door blank plate and cleaning slag on a saw-shaped metal supporting strip is arranged on the left portion of the upper end face of the bearing lathe bed. The groove-shaped workbench drives the door blank plate to move back to trigger a self-scraping assembly to automatically clean slag dripping on the saw-shaped metal supporting strip. Slag accumulation and solidification are avoided, the problem of tilting or inclining is solved, it is ensured that a door blank plate is flatly placed on the workbench, a laser cutting head is perpendicular to the surface of a workpiece, it is ensured that a laser beam cuts at an accurate angle, and the accuracy of cutting machining is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting processing of steel fire doors, in particular to a laser machine for processing steel fire doors. Background Art

[0002] Steel fire doors are specially designed for fire isolation and preventing the spread of fire. They are usually composed of steel plates, steel frames and internal refractory materials (such as rock wool, fiberglass, etc.). Steel fire doors play a vital role in building fire protection design. They can not only effectively isolate fire sources and heat, but also prevent the spread of smoke and ensure the safety of people inside the building. In the production process of steel fire doors, it is usually necessary to laser cut the door embryo plate to produce the required ventilation holes, windows and other functional holes. In order to ensure the accuracy of laser cutting, the steel fire door embryo plate is usually placed on the grooved workbench in the laser machine. The grooved workbench is composed of a series of parallel metal strips, which has the function of supporting the steel plate, ensuring that the laser cutting process is smoother and can prevent the workpiece from shifting during the cutting process. During the laser cutting process, due to the high temperature of the laser beam, part of the steel will be melted and produce slag, which drips onto the surface of the metal strips on the grooved workbench to form solidified slag.

[0003] However, existing laser cutting equipment is usually unable to clean up the slag in a timely and effective manner. As the cutting process proceeds, the slag will gradually cool and solidify and adhere to the metal strips on the grooved workbench and gradually accumulate, causing the subsequent door embryo plate to be unable to be placed flat on the workbench, and to slightly warp or tilt. When the door embryo plate is not placed flat, the laser cutting head and the surface of the door embryo plate cannot maintain a completely vertical relationship, resulting in a deviation in the angle of the cutting head. Since the laser cutting head is not perpendicular to the surface of the door embryo plate, the angle of the laser beam during cutting deviates from the original preset direction, which may cause a deviation in the cutting size and may affect the subsequent assembly and use. Summary of the invention

[0004] The present invention provides a laser machine for processing steel fire doors, which solves the technical problem that the existing laser cutting equipment cannot clean up the slag in time, causing the slag to gradually cool and solidify on the metal strip of the grooved workbench, gradually accumulating and affecting the flat placement of the door embryo plate. When the door embryo plate is uneven, the laser cutting head cannot remain perpendicular to the surface, resulting in an angle deviation of the cutting head, and then causing the laser beam to deviate from the preset direction, resulting in a cutting size deviation, which affects the subsequent assembly and use.

[0005] The present invention provides a laser machine for processing steel fire doors, comprising a load-bearing bed, a laser cutting system arranged on the upper part of the load-bearing bed, two C-shaped rail seats respectively fixedly connected to the front and rear opposite sides of the load-bearing bed, and a groove-type workbench slidably connected between the two C-shaped rail seats, wherein the groove-type workbench is composed of a rectangular load-bearing frame slidably connected between the two C-shaped rail seats and a plurality of saw-shaped metal support bars equidistantly fixedly connected between the front and rear opposite sides of the rectangular load-bearing frame, and a self-scraping mechanism for timely and automatically cleaning the molten slag dripping onto the saw-shaped metal support bars during the laser cutting process is commonly arranged between the two C-shaped rail seats and the rectangular load-bearing frame, and the self-scraping mechanism automatically cleans the slag dripping onto the metal support bars Clean to ensure that the steel fire door embryo plate can be placed horizontally on the grooved workbench, the self-scraping mechanism includes a sliding connection assembly, a scraper blade, a separation and combination driving assembly and a reciprocating assembly, each of the saw-like metal support bars is provided with two scraper blades on the lower part of the sliding connection assembly for sliding symmetrically left and right, a separation and combination driving assembly for driving the scraper blade to contact and separate from the saw-like metal support bar is commonly provided between the rectangular bearing frame and the C-shaped rail seat, a reciprocating assembly for driving the scraper blade to reciprocate back and forth is commonly provided between the separation and combination driving assembly and the C-shaped rail seat, and a self-propelling and auxiliary scraping integrated mechanism for automatically pushing out the processed steel fire door embryo plate and cleaning the slag on the saw-like metal support bar is provided on the left part of the upper end surface of the bearing bed.

[0006] In one possible implementation, the sliding connection assembly includes two sliding seats that are symmetrically slidably connected to the front and rear sides of the lower side of the saw-shaped metal support bar, and two circular rings are symmetrically fixedly connected to the lower part of the sliding seat. An axial column is connected between the two corresponding circular rings for common rotation, and a number of scraper blades are equidistantly fixedly connected to the outside of the axial column along its own axial direction through a fixed bar.

[0007] In a possible implementation, the separation and combination driving assembly includes four sliding columns which are slidably connected to the lower end surface of the rectangular bearing frame through sliding members and are distributed in a matrix shape. A slide plate is slidably connected between two adjacent left and right slide columns. A plurality of linkage parts corresponding to the saw-shaped metal support strips are equidistantly arranged on the upper end surface of the slide plate. A strip-type push-receiving seat is fixedly connected to the middle part of the lower end surface of the slide plate through a connecting column. A push-up seat which cooperates with the strip-type push-receiving seat and is in the shape of an isosceles trapezoid is fixedly connected to the bottom of the C-shaped rail seat cavity.

[0008] In one possible implementation, the linkage member includes a rectangular frame fixedly connected to the upper end surface of the skateboard and two racks fixedly connected to the left and right opposite sides of the rectangular frame and corresponding to the shaft column, and one end of the shaft column close to the rectangular frame is fixedly connected to a gear meshing with the corresponding rack through a rotating shaft.

[0009] In a possible implementation, the sliding member includes a sliding groove opened on the lower end surface of the rectangular supporting frame, a slider is slidably connected in the sliding groove, a limit spring is fixedly connected between the slider and the sliding groove, and a sliding column is fixedly connected to the lower end surface of the slider.

[0010] In a possible implementation, the reciprocating assembly includes a push rod and a corrugated plate, the two slide plates are symmetrically fixedly connected with push rods on the opposite sides of each other, a strip-shaped through groove corresponding to the position of the push rod and for the push rod to extend into is opened on the rectangular supporting frame, and the corrugated plates for cooperating with the push rods are fixedly connected to the front and rear opposite sides of the two C-shaped rail seats.

[0011] In a possible implementation, the front and rear opposite crests and troughs of the two wavy plates are distributed in a complementary manner, and a limit block for limiting the position of the slide plate is fixedly connected to the lower end surface of the slide column.

[0012] In a possible implementation, the self-propelled auxiliary scraping integrated mechanism includes two electric telescopic rods that are symmetrically fixed to the upper end surface of the supporting bed through fixed blocks. The rear ends of the two electric telescopic rods are commonly fixedly connected to a mounting plate. A plurality of embedding grooves are equidistantly provided on the lower end surface of the mounting plate. Spring telescopic columns are fixedly connected to the upper groove walls of the embedding grooves, and scraping sleeves are respectively fixedly connected to the lower ends of the spring telescopic columns.

[0013] In a possible implementation, a portal frame is fixedly connected to the rear portion of the upper end surface of the load-bearing bed, support plates are fixedly connected to opposite sides of the vertical section of the portal frame, and guide wheels are rotatably connected to the lower end surfaces of the support plates.

[0014] In a possible implementation, the lower end surface of the lateral section of the portal frame is symmetrically fixedly connected to two vertical plates, a pressure roller is rotatably connected between the two vertical plates, and a strip scraper is fixedly connected to the upper end surface of the support bed and directly below the pressure roller.

[0015] It can be seen from the above technical solutions that the present invention has the following advantages:

[0016] In the present invention, the sliding connection assembly, scraper blade, separation and combination driving assembly and reciprocating assembly in the self-scraping assembly are triggered to operate in combination during the back movement of the door embryo plate by the grooved workbench. After the door embryo plate is cut, the slag dripping on the saw-shaped metal support bar is automatically cleaned while the residual heat is taken advantage of, thereby avoiding the accumulation and solidification of slag and eliminating the problem of warping or tilting caused by slag hanging. In the subsequent cutting, the door embryo plate can be placed flat on the workbench, ensuring that the laser cutting head can remain perfectly perpendicular to the surface of the workpiece, thereby ensuring that the laser beam cuts at a preset precise angle, effectively improving the accuracy of the cutting process.

[0017] In the present invention, the slag attached to the upper part of the saw-shaped metal support bar can be scraped and cleaned through the self-propelled auxiliary scraping integrated mechanism, ensuring that the saw-shaped metal support bar is cleaned more thoroughly. At the same time, the processed door embryo plate can be automatically pushed out while cleaning, so that two tasks can be carried out at the same time, which greatly reduces the pause time in the production process and improves the processing flow speed of the door embryo plate.

[0018] In the present invention, the guide wheel, the pressure roller and the strip scraper are combined with each other to scrape and clean the slag on the lower surface of the door embryo plate while the door embryo plate is pushed out, which not only optimizes the subsequent slag cleaning steps, but also ensures that the slag can be removed immediately after each cutting, ensures that the surface of the door embryo plate is flat, and improves the quality of the processed door embryo plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the laser machine for processing steel fire doors provided by the present invention.

[0021] Figure 2 The present invention provides Figure 1 Schematic diagram of the enlarged structure of part A in the figure.

[0022] Figure 3 This is a schematic diagram of the installation structure of the self-scraping mechanism provided by the present invention.

[0023] Figure 4 This is a schematic diagram of the installation structure of the self-scraping mechanism provided by the present invention when viewed from above.

[0024] Figure 5 The present invention provides Figure 4 Schematic diagram of the enlarged structure of part B.

[0025] Figure 6 This is a schematic diagram of the installation structure of the separation and combination drive assembly provided by the present invention.

[0026] Figure 7 The present invention provides Figure 6 Schematic diagram of the enlarged structure of part C in the figure.

[0027] Figure 8 This is a partial structural schematic diagram of the sliding coupling assembly provided by the present invention.

[0028] Fig. 9 This is a schematic diagram of the installation structure of the reciprocating assembly provided by the present invention from a top view.

[0029] Fig.10 This is a schematic diagram of the arrangement structure of the strip-type pushed seat and the pushing seat provided by the present invention.

[0030] Fig.11 This is a schematic cross-sectional structural diagram of the self-propelling and auxiliary scraping integrated mechanism provided by the present invention.

[0031] The above drawings include the following reference numerals:

[0032] 1. Load-bearing bed; 2. Laser cutting system; 3. C-shaped rail seat; 4. Rectangular load-bearing frame; 5. Saw-shaped metal support bar; 6. Self-scraping mechanism; 61. Sliding joint assembly; 611. Sliding seat; 612. Circular ring; 613. Axis column; 62. Scraping blade; 63. Splitting and combining driving assembly; 631. Sliding column; 632. Slide plate; 633. Strip-type push-receiving seat; 634. Push-up seat; 635. Rectangular frame; 636. Rack; 637. Gear; 638. Slide groove; 639. Sliding block; 64. Reciprocating assembly; 641. Push rod; 642. Wave-shaped plate; 7. Self-propelled and auxiliary scraping integrated mechanism; 71. Electric telescopic rod; 72. Mounting plate; 73. Scraping sleeve; 8. Door frame; 9. Guide wheel; 10. Pressure roller; 11. Strip scraper. DETAILED DESCRIPTION

[0033] 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.

[0034] See also Figure 1 and Figure 3 The present invention provides a technical solution: a laser machine for processing steel fire doors, comprising a load bed 1, a laser cutting system 2 arranged on the upper part of the load bed 1, two C-shaped rail seats 3 respectively fixedly connected to the front and rear opposite sides of the load bed 1, and a grooved workbench slidably connected between the two C-shaped rail seats 3, the grooved workbench is composed of a rectangular load frame 4 slidably connected between the two C-shaped rail seats 3 and a plurality of saw-shaped metal support bars 5 equidistantly fixedly connected between the front and rear opposite sides of the rectangular load frame 4, the two C-shaped rail seats 3 and the rectangular load frame 4 are connected to the grooved workbench 4. A self-scraping mechanism 6 is commonly provided between the shaped supporting frames 4 for automatically and timely cleaning the molten slag dripping onto the saw-shaped metal support bar 5 during the cutting process after the steel fire door embryo plate is cut by the laser cutting system 2. The self-scraping mechanism 6 automatically cleans the slag dripping onto the metal support bar to ensure that the steel fire door embryo plate can be placed horizontally on the trough-shaped workbench, and a self-pushing and auxiliary scraping integrated mechanism 7 is provided on the left part of the upper end surface of the supporting bed 1 for automatically pushing out the processed steel fire door embryo plate and further cleaning the slag on the saw-shaped metal support bar 5.

[0035] See also Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 7 In this embodiment, the self-scraping mechanism 6 includes a sliding connection assembly 61, a scraper blade 62, a separation and combination driving assembly 63 and a reciprocating assembly 64. Two scraper blades 62 are symmetrically slidably arranged at the lower part of each saw-shaped metal support bar 5 through the sliding connection assembly 61. The sliding connection assembly 61 includes two sliding seats 611 symmetrically slidably connected to the lower side of the saw-shaped metal support bar 5. Two circular rings 612 are symmetrically fixedly connected to the lower part of the sliding seat 611. A shaft column 613 is rotatably connected between the two corresponding circular rings 612. A plurality of scraper blades 62 are equidistantly fixedly connected to the outside of the shaft column 613 along its own axial direction through a fixed bar. A separation and combination driving assembly 63 for driving the scraper blade 62 to contact and separate from the saw-shaped metal support bar 5 is commonly arranged between the rectangular bearing frame 4 and the C-shaped rail seat 3. A reciprocating assembly 64 for driving the scraper blade 62 to reciprocate back and forth is commonly arranged between the separation and combination driving assembly 63 and the C-shaped rail seat 3.

[0036] See also Figure 4 , Figure 5 , Figure 6 , Figure 7 and Fig.10 The separation and combination driving assembly 63 includes four slide posts 631 which are slidably connected to the lower end surface of the rectangular bearing frame 4 through sliding members and are distributed in a matrix shape. A slide plate 632 is slidably connected between two adjacent slide posts 631 on the left and right. A plurality of linkage members corresponding to the saw-shaped metal support strips 5 are equidistantly arranged on the upper end surface of the slide plate 632. A strip-shaped push-up seat 633 is fixedly connected to the middle of the lower end surface of the slide plate 632 through a connecting column. A push-up seat 634 which is an isosceles trapezoid and matches the strip-shaped push-up seat 633 is fixedly connected to the bottom of the cavity of the C-shaped rail seat 3. The linkage member includes a rectangular frame fixedly connected to the upper end surface of the slide plate 632. 635 and two racks 636 respectively fixedly connected on the left and right opposite sides of the rectangular frame 635 and corresponding to the shaft column 613, one end of the shaft column 613 close to the rectangular frame 635 is fixedly connected with a gear 637 meshing with the corresponding rack 636 through a rotating shaft, the sliding part includes a slide groove 638 opened on the lower end surface of the rectangular supporting frame 4, a slider 639 is slidably connected in the slide groove 638, a limit spring is fixedly connected between the slider 639 and the slide groove 638, the slide column 631 is fixedly connected to the lower end surface of the slider 639, and the lower end surface of the slide column 631 is fixedly connected with a limit block for limiting the slide plate 632.

[0037] See also Figure 1 , Figure 3 and Fig. 9The reciprocating assembly 64 includes a push rod 641 and a corrugated plate 642. The two slide plates 632 are symmetrically fixedly connected with the push rods 641 on the opposite sides of each other. The rectangular bearing frame 4 is provided with a strip-shaped through groove corresponding to the position of the push rod 641 and used for the push rod 641 to extend into. The front and rear opposite sides of the two C-shaped rail seats 3 are fixedly connected with the corrugated plates 642 for cooperating with the push rod 641. The front and rear opposite crests and troughs of the two corrugated plates 642 are distributed in a complementary manner.

[0038] Before processing, the slotted worktable is controlled to move to the left position of the bearing bed 1, and then the door embryo plate is placed on the slotted worktable manually or by an external robot. Then the slotted worktable is controlled to drive the door embryo plate to move to the right to the position directly below the laser cutting system 2, and then the laser cutting system 2 is controlled to cut the door embryo plate (when the slotted worktable is located directly below the laser cutting system 2, the scraper blade 62 is located directly below the saw-shaped metal support bar 5). After the door embryo plate is cut, the rectangular bearing frame 4 is controlled to move to the left, and the rectangular bearing frame 4 then indirectly drives the strip-shaped pushed seat 633 to move to the left, and then the strip-shaped pushed seat 633 contacts the left side. On the inclined surface of the pushing seat 634, the strip-shaped pushed seat 633 moves upward under the pressure of the inclined surface of the pushing seat 634, and then pushes the slide plate 632 upward through the connecting column, and the slide plate 632 then drives the rectangular frame 635 to move upward, and the rectangular frame 635 then drives the rack 636 to move upward. During the upward movement of the rack 636, it drives the gear 637 to rotate, and the gear 637 then drives the shaft column 613 to rotate through the rotating shaft. The two shaft columns 613 located below the saw-shaped metal support bar 5 rotate in opposite directions, and the shaft column 613 then drives the scraper blade 62 to rotate through the fixed bar until the scraper blade 62 rotates to fit on the side end surface of the saw-shaped metal support bar 5.

[0039] When the slide plate 632 moves horizontally to the left, it will also drive the push rod 641 to move synchronously. During the horizontal movement of the push rod 641, it will conflict with the curved surface of the corrugated plate 642. Since the crests and troughs of the front and rear corrugated plates 642 are complementary, the crest convex parts of the two corrugated plates 642 cooperate with each other to push the push rod 641 moving back and forth. The push rod 641 then pushes the slide plate 632 to move back and forth. The slide plate 632 then drives the shaft column 613 to move back and forth through the rectangular frame 635. Finally, the shaft column 613 drives the scraper blade 62 to move back and forth to scrape off the slag that is still warm and attached to the saw-shaped metal support bar 5.

[0040] When the rectangular supporting frame 4 drives the door embryo plate to move to the left through the saw-shaped metal support bar 5 and is about to move to the position of the self-propelled and scraping auxiliary integrated mechanism 7, the slide plate 632 drives the strip-type pushed seat 633 to move to the inclined surface on the left part of the pushing seat 634, so that the strip-type pushed seat 633 moves to the left through the inclined surface on the left part of the pushing seat 634. During this process, the strip-type pushed seat 633 will gradually move downward, thereby driving the slide plate 632 to move downward. The slide plate 632 then drives the rack 636 to move downward through the rectangular frame 635, and the rack 636 drives the gear 637 to reverse. The gear 637 then drives the shaft column 613 to rotate through the rotating shaft, and the shaft column 613 drives the scraper blade 62 to rotate, so that the scraper blade 62 is separated from the saw-shaped metal support bar 5, and finally the scraper blade 62 is rotated to the position directly below the saw-shaped metal support bar 5.

[0041] See also Figure 1 , Figure 2 and Fig.11 In this embodiment, the self-propelled auxiliary scraping integrated mechanism 7 includes two electric telescopic rods 71 ​​which are symmetrically fixedly connected to the upper end surface of the supporting bed 1 through a fixed block. The rear ends of the two electric telescopic rods 71 ​​are commonly fixedly connected to a mounting plate 72. The lower end surface of the mounting plate 72 is equidistantly provided with a number of embedded grooves, and the upper groove walls of the embedded grooves are fixedly connected to spring telescopic columns, and the lower ends of the spring telescopic columns are respectively fixedly connected to scraping sleeves 73. A portal frame 8 is fixedly connected to the rear part of the upper end surface of the supporting bed 1, and support plates are fixedly connected to the opposite sides of the vertical section of the portal frame 8. The lower end surfaces of the support plates are rotatably connected to guide wheels 9. The lower end surface of the transverse section of the portal frame 8 is symmetrically fixedly connected to two vertical plates, and a pressure roller 10 is rotatably connected between the two vertical plates. A strip scraper 11 is fixedly connected to the upper end surface of the supporting bed 1 and directly below the pressure roller 10.

[0042] When the grooved workbench drives the cut door embryo plate to move to the left to the position just in front of the mounting plate 72, the electric telescopic rod 71 is controlled to extend to push the mounting plate 72 forward, and the mounting plate 72 then drives the scraping sleeve 73 to move forward through the spring telescopic column to extend into the area between the two C-shaped rail seats 3, and then drives the scraping sleeve 73 downward under the pushing of the compressed spring telescopic column, so that the scraping sleeve 73 moves downward and is set on the outside of the corresponding saw-shaped metal support bar 5, and then the mounting plate 72 drives the scraping sleeve 73 to continue to move backward, and the scraping sleeve 73 moves backward to contact the front side of the door embryo plate and push the door embryo plate backward. During the process of moving from front to back outside the saw-shaped metal support bar 5, the scraping sleeve 73 can automatically clean up the slag attached to the upper part of the saw-shaped metal support bar 5.

[0043] When the stripping sleeve pushes the door embryo plate to move backward, the door embryo plate will enter between the two guide wheels 9, which are respectively stuck on the left and right sides of the door embryo plate. Then the door embryo plate is pushed to pass between the pressure roller 10 and the strip scraper. The pressure roller 10 is used to press the upper part of the door embryo plate to move the door embryo plate downward and contact the strip scraper 11. During the backward movement of the door embryo plate, it moves relative to the strip scraper 11, so that some of the slag attached to the lower part of the door embryo plate can be scraped off and cleaned.

[0044] When the stripping sleeve 73 pushes the door embryo plate backward and moves away from the grooved workbench, the electric telescopic rod 71 is controlled to contract to drive the mounting plate 72 to move forward and reset, and the mounting plate 72 then drives the stripping sleeve 73 to move forward until it moves to the initial position.

[0045] During operation, the slotted worktable is controlled to move to the left part of the supporting bed 1, and then the door embryo plate to be processed is placed on the slotted worktable, and then the slotted worktable is controlled to move to the right until the door embryo plate is driven to move directly under the laser cutting system 2, and then the laser cutting system 2 can be controlled to operate the cutting process of the door embryo plate. After the processing is completed, the slotted worktable is controlled to move to the left to move the door embryo plate out. During the left movement of the slotted worktable, the self-scraping mechanism 6 is triggered to operate, and the slag dripping onto the surface of the saw-shaped metal support bar 5 during the laser cutting process is scraped and cleaned. When the slotted worktable moves to the left to the position of the self-pushing and auxiliary scraping integrated mechanism 7, the self-pushing and auxiliary scraping integrated mechanism 7 is controlled to operate, and the door embryo plate is automatically pushed backward while the slag on the upper part of the saw-shaped metal support bar 5 is scraped off. In the process of the door embryo plate being pushed backward, the slag attached to the lower surface of the door embryo plate is cleaned by the combination of the strip scraper 11 and the pressure roller 10.

[0046] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are 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 device or element referred to 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", "second", "number one", "number two" 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", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" 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] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser machine for processing steel fire doors, comprising a load-bearing bed (1), a laser cutting system (2) arranged on the upper part of the load-bearing bed (1), two C-shaped rail seats (3) respectively fixedly connected to the front and rear opposite sides of the load-bearing bed (1), and a grooved workbench slidably connected between the two C-shaped rail seats (3), characterized in that: The trough-type workbench is composed of a rectangular bearing frame (4) slidably connected between two C-shaped rail seats (3) and a plurality of saw-shaped metal support bars (5) equidistantly fixedly connected between the front and rear opposite sides of the rectangular bearing frame (4). A self-scraping mechanism (6) is provided between the two C-shaped rail seats (3) and the rectangular bearing frame (4) for timely and automatically cleaning the molten slag dripping onto the saw-shaped metal support bars (5) during the laser cutting process. The self-scraping mechanism (6) automatically cleans the slag dripping onto the metal support bars to ensure that the steel fire door embryo plate can be placed horizontally on the trough-type workbench; The self-scraping mechanism (6) comprises a sliding connection assembly (61), a scraping blade (62), a separation and combination driving assembly (63) and a reciprocating assembly (64); two scraping blades (62) are symmetrically slidably arranged at the lower part of each saw-shaped metal support bar (5) via the sliding connection assembly (61); a separation and combination driving assembly (63) for driving the scraping blade (62) to contact and separate from the saw-shaped metal support bar (5) is arranged between the rectangular bearing frame (4) and the C-shaped rail seat (3); and a reciprocating assembly (64) for driving the scraping blade (62) to reciprocate back and forth is arranged between the separation and combination driving assembly (63) and the C-shaped rail seat (3); The left part of the upper end surface of the load-bearing bed (1) is provided with a self-propelling and scraping integrated mechanism (7) for automatically pushing out the processed steel fire door embryo plate and cleaning the slag on the saw-shaped metal support bar (5).

2. The laser machine for processing steel fire doors according to claim 1, characterized in that: The sliding connection assembly (61) comprises two sliding seats (611) symmetrically slidably connected to the lower side of the saw-shaped metal support bar (5); two circular rings (612) are symmetrically fixedly connected to the lower part of the sliding seat (611); a shaft column (613) is rotatably connected between the two corresponding circular rings (612); and a plurality of scraper blades (62) are fixedly connected to the outside of the shaft column (613) along its own axial direction via a fixing bar at equal intervals.

3. The laser machine for processing steel fire doors according to claim 2, characterized in that: The separation and combination driving assembly (63) comprises four slide posts (631) which are slidably connected to the lower end surface of the rectangular bearing frame (4) through sliding members and are arranged in a matrix shape. A slide plate (632) is slidably connected between two adjacent slide posts (631) on the left and right. A plurality of linkage members corresponding to the saw-shaped metal support strips (5) are equidistantly arranged on the upper end surface of the slide plate (632). A strip-shaped push-up seat (633) is fixedly connected to the middle part of the lower end surface of the slide plate (632) through a connecting column. A push-up seat (634) which cooperates with the strip-shaped push-up seat (633) and is in the shape of an isosceles trapezoid is fixedly connected to the bottom of the cavity of the C-shaped rail seat (3).

4. The laser machine for processing steel fire doors according to claim 3, characterized in that: The linkage member comprises a rectangular frame (635) fixedly connected to the upper end surface of the slide plate (632) and two racks (636) respectively fixedly connected to the left and right opposite sides of the rectangular frame (635) and corresponding to the shaft column (613); one end of the shaft column (613) close to the rectangular frame (635) is fixedly connected to a gear (637) meshing with the corresponding rack (636) via a rotating shaft.

5. The laser machine for processing steel fire doors according to claim 3, characterized in that: The sliding member comprises a sliding groove (638) provided on the lower end surface of the rectangular supporting frame (4), a sliding block (639) is slidably connected in the sliding groove (638), a limit spring is fixedly connected between the sliding block (639) and the sliding groove (638), and a sliding column (631) is fixedly connected to the lower end surface of the sliding block (639).

6. The laser machine for processing steel fire doors according to claim 3, characterized in that: The reciprocating assembly (64) comprises a push rod (641) and a wavy plate (642); the push rods (641) are fixedly connected to the two opposite sides of the two slide plates (632) in a symmetrical manner; a strip-shaped through groove corresponding to the position of the push rod (641) and for the push rod (641) to extend into is opened on the rectangular bearing frame (4); and the wavy plates (642) for cooperating with the push rod (641) are fixedly connected to the front and rear opposite sides of the two C-shaped rail seats (3).

7. The laser machine for processing steel fire doors according to claim 6, characterized in that: The front and rear opposite wave crests and wave troughs of the two wave-shaped plates (642) are distributed in a complementary manner, and a limit block for limiting the position of the slide plate (632) is fixedly connected to the lower end surface of the slide column (631).

8. The laser machine for processing steel fire doors according to claim 1, characterized in that: The self-propelled and scraping-assisted integrated mechanism (7) comprises two electric telescopic rods (71) fixedly connected to the upper end surface of the supporting bed (1) in a symmetrical manner via fixed blocks, the rear ends of the two electric telescopic rods (71) being fixedly connected to a mounting plate (72), the lower end surface of the mounting plate (72) being provided with a plurality of embedding grooves at equal intervals, the upper groove walls of the embedding grooves being fixedly connected to spring telescopic columns, the lower ends of the spring telescopic columns being fixedly connected to scraping sleeves (73).

9. The laser machine for processing steel fire doors according to claim 1, characterized in that: The rear part of the upper end surface of the load-bearing bed (1) is fixedly connected to a portal frame (8), the opposite sides of the vertical section of the portal frame (8) are fixedly connected to support plates, and the lower end surfaces of the support plates are rotatably connected to guide wheels (9).

10. The laser machine for processing steel fire doors according to claim 9, characterized in that: The lower end surface of the transverse section of the portal frame (8) is symmetrically and fixedly connected to two vertical plates, a pressure roller (10) is rotatably connected between the two vertical plates, and a strip scraper (11) is fixedly connected to the upper end surface of the support bed (1) and located directly below the pressure roller (10).

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