A laser machine for processing steel fire doors

Abstract

The present invention discloses a laser machine for processing steel fire doors, and the present invention relates to the technical field of laser cutting processing of steel fire doors. The laser machine for processing steel fire doors comprises a supporting bed, a laser cutting system arranged on the upper part of the supporting bed, two C-shaped rail seats fixedly connected to the front and rear opposite sides of the supporting bed, and a grooved workbench slidably connected between the two C-shaped rail seats. The left part of the upper end surface of the supporting bed is provided with a self-propelling and scraping integrated mechanism for automatically pushing out the processed steel fire door blank and cleaning the slag on the saw-shaped metal support bar. The present invention drives the door blank to move back through the grooved workbench to trigger the self-scraping assembly to automatically clean the slag dripping on the saw-shaped metal support bar, thereby avoiding the accumulation and solidification of slag, eliminating the problem of warping or tilting, ensuring that the door blank is placed flat on the workbench, keeping the laser cutting head perpendicular to the workpiece surface, ensuring that the laser beam cuts at a precise angle, and improving the accuracy of the cutting process.

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] A steel fire door is a door specially designed for fire isolation and preventing the spread of fire. It is 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 blanks to produce the required ventilation holes, windows and other functional holes. In order to ensure the accuracy of laser cutting, the steel fire door blanks are usually placed on the grooved workbench in the laser machine. The grooved workbench consists of a series of parallel metal bars that support the steel plate, ensure a smoother laser cutting process, and 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 slag will be produced. This slag drips onto the surface of the metal bars on the grooved workbench, forming a solidified slag.

[0003] However, existing laser cutting equipment is usually unable to clean up these slags 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 blanks to be unable to be placed flat on the workbench, and to appear slightly warped or tilted. When the door blanks are not placed flat, the laser cutting head and the surface of the door blanks cannot maintain a completely perpendicular 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 blank, the angle of the laser beam during cutting deviates from the original preset direction, which may cause deviations in the cutting size and may affect 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 existing laser cutting equipment cannot clean slag in time, causing the slag to gradually cool and solidify on the metal strips 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 angular deviation of the cutting head, and then causing the laser beam to deviate from the preset direction, resulting in cutting size deviation, and affecting subsequent assembly and use.

[0005] The present invention provides a laser machine for processing steel fire doors, comprising a supporting bed, a laser cutting system arranged on the upper part of the supporting bed, two C-shaped rail seats fixedly connected to the front and rear opposite sides of the supporting bed, and a grooved workbench slidably connected between the two C-shaped rail seats. The grooved workbench is composed of a rectangular supporting 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 supporting frame. 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 provided between the two C-shaped rail seats and the rectangular supporting frame. The self-scraping mechanism automatically cleans the slag dripping onto the metal support bars. Clean to ensure that the steel fire door blank can be placed horizontally on the trough workbench. The self-scraping mechanism includes a sliding connection assembly, a scraping blade, a separation and combination driving assembly and a reciprocating assembly. Each of the saw-shaped metal support bars has two scraping blades that slide symmetrically left and right through the sliding connection assembly. A separation and combination driving assembly for driving the scraper blade to contact and separate from the saw-shaped 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. A self-propelling and auxiliary scraping integrated mechanism for automatically pushing out the processed steel fire door blank and cleaning the slag on the saw-shaped 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 connected for sliding in 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 axis column is connected between the two corresponding circular rings for common rotation, and a number of scraper blades are fixedly connected to the outside of the axis column along its own axis through a fixed bar at equal distances.

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

[0008] In one possible implementation, the linkage 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 the 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 one 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 limiting spring is fixedly connected between the slider and the sliding groove, and the sliding column is fixedly connected to the lower end surface of the slider.

[0010] In one possible implementation, the reciprocating assembly includes a push rod and a wavy plate. The two slides are symmetrically fixedly connected to the 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. The front and rear opposite sides of the two C-shaped rail seats are fixedly connected to the wavy plates for cooperating with the push rods.

[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 one possible implementation, the self-propelled and scraping-assisted integrated mechanism includes two electric telescopic rods symmetrically fixedly connected 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. The upper groove walls of the embedding grooves are fixedly connected to spring telescopic columns, and the lower ends of the spring telescopic columns are respectively fixedly connected to scraping sleeves.

[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 one possible implementation, the lower end surface of the horizontal section of the portal frame is symmetrically fixed with two vertical plates, a pressure roller is connected between the two vertical plates for common rotation, and a strip scraper is fixedly connected to the upper end surface of the supporting bed and located 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 return movement of the door embryonic plate through the grooved workbench. After the door embryonic 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 the slag and eliminating the problem of warping or tilting caused by slag hanging. The door embryonic plate can be placed flat on the workbench during subsequent cutting, ensuring that the laser cutting head can maintain perfect verticality with 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 the 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. This 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 following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any 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 .

[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.

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

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

[0029] Figure 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] Figure 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. Carrying bed; 2. Laser cutting system; 3. C-shaped rail seat; 4. Rectangular carrying frame; 5. Saw-shaped metal support bar; 6. Self-scraping mechanism; 61. Sliding joint assembly; 611. Sliding seat; 612. Circular ring; 613. Shaft column; 62. Scraping blade; 63. Splitting and combining drive assembly; 631. Sliding column; 632. Slide plate; 633. Strip-type push seat; 634. Pushing seat; 635. Rectangular frame; 636. Rack; 637. Gear; 638. Slide groove; 639. Slider; 64. Reciprocating assembly; 641. Push rod; 642. Corrugated 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] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to 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 carrier bed 1, a laser cutting system 2 arranged on the upper part of the carrier bed 1, two C-shaped rail seats 3 fixedly connected to the front and rear opposite sides of the carrier bed 1, and a slotted workbench slidably connected between the two C-shaped rail seats 3. The slotted workbench is composed of a rectangular carrier frame 4 slidably connected between the two C-shaped rail seats 3 and a plurality of saw-shaped metal supports 5 equidistantly fixedly connected between the front and rear opposite sides of the rectangular carrier frame 4. The two C-shaped rail seats 3 and the rectangular carrier frame 4 are connected to each other. 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 when the steel fire door blank 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 blank can be placed horizontally on the trough-shaped workbench. A self-pushing and auxiliary scraping integrated mechanism 7 is provided on the left side of the upper end surface of the supporting bed 1 for automatically pushing out the processed steel fire door blank 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 scraping blade 62, a separation and combination driving assembly 63 and a reciprocating assembly 64. Two scraping blades 62 are symmetrically slidably provided on the lower part of each saw-shaped metal support 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 5. Two circular rings 612 are symmetrically fixedly connected to the lower part of the sliding seat 611. A shaft column 613 is connected to the two corresponding circular rings 612 for common rotation. Several scraping blades 62 are fixedly connected to the outside of the shaft column 613 along its own axial direction through fixed bars at equal distances. A separation and combination driving assembly 63 for driving the scraping blade 62 to contact and separate from the saw-shaped metal support 5 is commonly provided between the rectangular supporting frame 4 and the C-shaped rail seat 3. A reciprocating assembly 64 for driving the scraping blade 62 to reciprocate back and forth is commonly provided 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 Figure 10 The splitting and combining driving assembly 63 includes four sliding posts 631 that 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-type 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 in the shape of an isosceles trapezoid that cooperates with the strip-type 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 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 to a gear 637 engaged 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 support frame 4, a slider 639 is slidably connected in the slide groove 638, a limiting 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 to a limit block for limiting the slide plate 632.

[0037] See also Figure 1 、 Figure 3 and Figure 9The reciprocating assembly 64 includes a push rod 641 and a wavy plate 642. The two slides 632 are symmetrically fixedly connected to the push rods 641 on the opposite sides of each other. The rectangular supporting frame 4 is provided with a strip-shaped through groove corresponding to the position of the push rod 641 and 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 to the wavy plates 642 for cooperating with the push rod 641. The front and rear opposite crests and troughs of the two wavy plates 642 are complementary.

[0038] Before processing, the slotted worktable is controlled to move to the left position of the carrier 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 carrier frame 4 is controlled to move to the left, and the rectangular carrier frame 4 then indirectly drives the strip-type pushed seat 633 to move to the left, and then the strip-type pushed seat 633 hits 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 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 peaks and troughs of the front and rear corrugated plates 642 are complementary, the crests and troughs of the two corrugated plates 642 cooperate with each other to push the push rod 641 moving back and forth in the left direction. The push rod 641 then pushes the slide 632 to move back and forth. The slide 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 the left through the saw-shaped metal support bar 5 and is about to move to the position of the self-pushing and auxiliary scraping integrated mechanism 7, the slide plate 632 drives the strip-type pushed seat 633 to move to the inclined surface on the left side of the pushing seat 634, so that the strip-type pushed seat 633 moves to the left through the inclined surface on the left side 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 then 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 then 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 Figure 11 In this embodiment, the self-propelled auxiliary scraping integrated mechanism 7 includes two electric telescopic rods 71 symmetrically fixedly connected to the upper end surface of the supporting bed 1 through fixed blocks. 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. 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. The rear end surface of the upper end surface of the supporting 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. The lower end surface of the horizontal 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. The mounting plate 72 then drives the scraping sleeve 73 to move forward through the spring telescopic column and extends into the area between the two C-shaped rail seats 3. Then, the scraping sleeve 73 is driven 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. Then, the mounting plate 72 drives the scraping sleeve 73 to continue to move backward. The scraping sleeve 73 moves backward and contacts the front side of the door embryo plate, and pushes the door embryo plate backward. During the movement 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, and the guide wheels 9 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 process of moving backward, the door embryo plate 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 scraping sleeve 73 pushes the door blank backward and moves away from the grooved workbench, the electric telescopic rod 71 is controlled to retract and drive the mounting plate 72 to move forward and reset, and the mounting plate 72 then drives the scraping sleeve 73 forward until it moves to the initial position.

[0045] During operation, the slotted worktable is controlled to move to the left side of the carrier 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 and cut 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 auxiliary scraping integrated mechanism 7, the self-pushing 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 should 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" and the like to 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, rather than indicating or implying 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] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0048] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on 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 scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laser machine for processing steel fire doors, comprising a support bed, a laser cutting system disposed above the support bed, two C-shaped rails fixedly connected to the front and rear opposite sides of the support bed, and a slotted worktable slidably connected between the two C-shaped rails, characterized in that: The trough-shaped workbench is composed of a rectangular supporting frame slidably connected between 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 supporting frame. A self-scraping mechanism is provided between the two C-shaped rail seats and the rectangular supporting frame for automatically and timely cleaning the molten slag dripping onto the saw-shaped metal support bars during the laser cutting process. The self-scraping mechanism automatically cleans the slag dripping onto the metal support bars to ensure that the steel fire door blank plate can be placed horizontally on the trough-shaped workbench. The self-scraping mechanism includes a sliding connection assembly, a scraping blade, a separation and combination driving assembly, and a reciprocating assembly. Two scraping blades are symmetrically slidably provided on the lower part of each saw-shaped metal support bar via the sliding connection assembly. A separation and combination driving assembly for driving the scraping blade to contact and separate from the saw-shaped metal support bar is provided between the rectangular bearing frame and the C-shaped rail seat. A reciprocating assembly for driving the scraping blade to reciprocate back and forth is provided between the separation and combination driving assembly and the C-shaped rail seat. The left part of the upper end surface of the load bed is provided with a self-propelling and scraping integrated mechanism for automatically pushing out the processed steel fire door blank and cleaning the slag on the saw-shaped metal support strips; The sliding coupling assembly includes two sliding seats symmetrically connected to each other in a sliding manner on the lower side of a saw-shaped metal support bar. Two circular rings are symmetrically fixedly connected to the lower part of the sliding seat. A shaft column is connected between the two corresponding circular rings for common rotation. A plurality of scraper blades are fixedly connected to the outside of the shaft column along its own axial direction through a fixing bar at equal intervals. The splitting and combining driving assembly includes four sliding posts slidably connected to the lower end surface of the rectangular bearing frame through sliding members and arranged in a matrix. A slide plate is slidably connected between two adjacent sliding posts on the left and right sides. A plurality of linkage members corresponding to the saw-shaped metal support strips are equidistantly arranged on the upper end surface of the slide plate. A strip-shaped push-receiving seat is fixedly connected to the middle of the lower end surface of the slide plate through a connecting column. A push-up seat in the shape of an isosceles trapezoid and matching the strip-shaped push-receiving seat is fixedly connected to the bottom of the C-shaped rail seat cavity. The linkage part includes a rectangular frame fixedly connected to the upper end surface of the slide and two racks fixedly connected to the left and right opposite sides of the rectangular frame and corresponding to the shaft column. The 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.

2. The laser machine for processing steel fire doors according to claim 1, characterized in that: The sliding member includes a sliding groove opened on the lower end surface of the rectangular bearing 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.

3. The laser machine for processing steel fire doors according to claim 1, characterized in that: The reciprocating assembly includes a push rod and a wavy plate. The two slides are fixedly connected to the push rods symmetrically on the left and right sides of the two slides. 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 bearing frame. The front and rear opposite sides of the two C-shaped rail seats are fixedly connected to the wavy plates for cooperating with the push rods.

4. The laser machine for processing steel fire doors according to claim 3, characterized in that: The front and rear wave crests and troughs of the two wave-shaped plates are complementary to each other, and the lower end surface of the sliding column is fixedly connected to a limiting block for limiting the sliding plate.

5. The laser machine for processing steel fire doors according to claim 1, characterized in that: The self-propelled and scraping-assisted integrated mechanism includes two electric telescopic rods that are symmetrically fixed to the upper end surface of the carrier bed through fixed blocks. The rear ends of the two electric telescopic rods are 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 the lower ends of the spring telescopic columns are respectively fixedly connected to scraping sleeves.

6. The laser machine for processing steel fire doors according to claim 1, characterized in that: A portal frame is fixedly connected to the rear portion of the upper end surface of the load-bearing bed, and 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.

7. The laser machine for processing steel fire doors according to claim 6, characterized in that: The lower end surface of the horizontal section of the portal frame is fixedly connected to two vertical plates symmetrically on the left and right, a pressure roller is connected between the two vertical plates for common rotation, and a strip scraper is fixedly connected to the upper end surface of the support bed and located directly below the pressure roller.

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