A welding device for processing fireproof door

Abstract

The application discloses a kind of welding devices for fireproof door processing, it is related to laser welding technical field.In the application, lifting guide assembly is slidably arranged on the direction-changing conveying assembly, laser welding mechanism is horizontally slidably arranged on the lifting guide assembly, welding assembly is rotatably arranged on the edge strip positioning assembly, the edge strip push plate that can be elastically reset is slidably arranged on the inside of edge strip storage cavity, the edge strip push plate is used to push the edge strip in edge strip storage cavity into edge strip positioning cavity, welding opening is arranged on the opposite sides of edge strip positioning cavity, when edge strip positioning cavity moves to the welding point position of welding station, the edge strip in edge strip positioning cavity is attached to the top of fireproof door plate, and the formed welding seam is inside welding opening.The application realizes the accurate positioning of edge strip on the section of fireproof door plate, so as to greatly improve the welding processing quality and processing efficiency of edge strip on the section of fireproof door plate.

Description

Technical Field

[0001] This invention belongs to the field of laser welding technology, and in particular relates to a welding device for processing fire doors. Background Technology

[0002] Fire doors require edge sealing during production. The sealed door panels prevent the cut surfaces from getting damp, moldy, and swollen. In the event of a fire, the edge sealing strips with expansion sealing function automatically expand, sealing the gaps between the door and blocking airflow between the two spaces. This effectively prevents the harm to the human body from dense smoke, toxic gases, and heat in the early stages of a fire and controls the spread of the fire.

[0003] In existing technologies, most fire door welding devices directly place the edge banding strip onto the cut surface of the fire door panel or transport the edge banding strip to the cut surface of the fire door panel via a conveying device. After the edge banding strip is transported, it is easy for it to be misaligned with the cut surface of the door panel, and the position of the edge banding strip on the cut surface often needs to be readjusted. This not only increases the workload in the fire door processing process, but also reduces the efficiency of fire door production and processing. Summary of the Invention

[0004] The purpose of this invention is to provide a welding device for fire door processing. Through the specific structural design of the reversing conveying component, the lifting guide component, the edge sealing strip positioning component, and the welding component, the invention solves the problem that existing fire door welding devices often fail to align the edge sealing strip with the door panel after conveying the edge sealing strip, requiring readjustment of the edge sealing strip's position on the panel, which increases workload and reduces work efficiency.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is a welding device for processing fire doors, including a reversing conveying assembly disposed on a guide rail, the reversing conveying assembly reciprocating between a loading station and a welding station, a lifting guide assembly slidably disposed on the reversing conveying assembly, and a laser welding mechanism horizontally slidably disposed on the lifting guide assembly; wherein, the reversing conveying assembly includes a reversing guide part, the laser welding mechanism includes a sealing strip positioning assembly slidably disposed between the lifting guide assembly and the reversing guide part, a welding assembly rotatably disposed on the sealing strip positioning assembly, and the welding assembly includes a reciprocating laser welder.

[0006] The edge banding positioning assembly includes an edge banding storage cavity, with an elastically resettable edge banding pusher plate slidably disposed inside the edge banding storage cavity; an edge banding positioning cavity disposed on one side of the edge banding storage cavity, the edge banding pusher plate being used to push the edge banding in the edge banding storage cavity into the edge banding positioning cavity; and a welding port disposed at the bottom of the edge banding positioning cavity, the welding port being disposed on opposite sides of the edge banding positioning cavity, when the edge banding positioning cavity moves to the welding point of the welding station, the edge banding in the edge banding positioning cavity adheres to the top of the fireproof door panel, and the formed weld seam is located inside the welding port.

[0007] In this embodiment of the invention, the reversing conveying assembly further includes a reversing conveying frame. Guide rail adapter seats are fixedly installed on both sides of the reversing conveying frame. The guide rail adapter seats are slidably disposed on the guide rail. A first opening area is opened on the top of the reversing conveying frame. A reversing control motor is installed on the top of the reversing conveying frame. The output end of the reversing control motor is connected to a reversing control unit. A second opening area is opened on both sides of the reversing conveying frame. Limiting grooves are opened on the two inner side walls of the second opening area.

[0008] In this embodiment of the invention, a reversing guide plate is fixedly installed on one side of the reversing conveyor frame. A guide channel is opened on the side of the reversing guide plate near the interior of the reversing conveyor frame. A guide channel is opened inside the guide channel. The guide channel and the guide channel are the same as the extension trajectory of the reversing guide plate. An inclined guide opening is opened on the top of the reversing guide plate and communicates with the guide channel. The inclined guide opening is parallel to the inclined portion of the reversing guide plate. The reversing guide part is composed of the reversing guide plate, the guide channel, the guide channel and the inclined guide opening.

[0009] In this embodiment of the invention, the lifting guide assembly includes two symmetrically arranged lifting seats. The lifting seats are disposed inside the passage area two and are slidably connected to the limiting groove. Two horizontal guide seats are symmetrically fixed between the lifting seats. Limiting guide grooves are formed on the inner sidewalls of the horizontal guide seats along their extension direction.

[0010] In this embodiment of the invention, the edge banding positioning assembly further includes an annular support frame. Two symmetrical movable parts are fixed on opposite sides of the bottom of the annular support frame. The movable parts are slidably disposed inside the corresponding limiting guide groove. A linkage part and a ball guide part are fixedly disposed on the side of the annular support frame near the deflection guide plate. The ball guide part is slidably fitted inside the guide channel. The linkage part passes through the guide channel and is sleeved in the inner cavity of the deflection control part.

[0011] In this embodiment of the invention, welding position control panels are fixedly installed on both sides of the annular support frame. An arc-shaped channel coaxial with the welding position control panel is opened on the welding position control panel. An edge banding positioning box is fixedly installed inside the annular support frame. An edge banding storage cavity is provided inside the edge banding positioning box. An edge banding feeding port communicating with the edge banding storage cavity is opened at the top of the edge banding positioning box. A lower positioning channel is fixedly installed at the bottom of the edge banding positioning box. An edge banding positioning cavity is provided between the lower positioning channel and the edge banding positioning box. The edge banding storage cavity and the edge banding positioning cavity are connected through the edge banding feeding port.

[0012] In this embodiment of the invention, the welding assembly further includes a first circumferential moving member and a second circumferential moving member disposed opposite to each other. The first circumferential moving member and the second circumferential moving member are slidably connected to corresponding arc-shaped channels. A horizontal guide rod and a welding control screw are respectively disposed between the first circumferential moving member and the second circumferential moving member. The horizontal guide rod is fixed between the first circumferential moving member and the second circumferential moving member, and the welding control screw is rotatably disposed between the first circumferential moving member and the second circumferential moving member. The laser welder consists of a welder body, a first laser head, and a second laser head. The welder body is sleeved between the horizontal guide rod and the welding control screw. The horizontal guide rod is slidably connected to the welder body, and the welding control screw is threadedly connected to the welder body.

[0013] In this embodiment of the invention, a mounting base is fixedly provided on the outer side of the first circumferential moving member, a welding control motor is mounted on the mounting base, the welding control screw is connected to the output end of the welding control motor, a welding position switching motor is mounted on the welding position control panel corresponding to the second circumferential moving member, the output shaft of the welding position switching motor is connected to a switching control unit, and the end of the horizontal guide rod away from the welding control motor passes through the inner cavity of the switching control unit.

[0014] In this embodiment of the invention, an air supply device is installed on the side of the annular support frame away from the spherical guide member. The air outlet end of the air supply device is connected to an air supply pipe one. An air supply pipe two is connected to the top of the air supply pipe one. A solenoid valve is installed on the pressure relief pipe installed on the air supply pipe one. A solenoid valve is installed on the air supply pipe two. A movable rod one and a guide pipe one fixed on one side of the edge sealing strip push plate both slide through the edge sealing strip positioning box and the annular support frame. The guide pipe one is slidably sleeved outside the air supply pipe one. The connecting plate fixed at the end of the movable rod one is connected to the annular support frame through an elastic member one.

[0015] In this embodiment of the invention, a pressure plate is provided inside the sealing strip positioning cavity. A second moving rod and a second guide pipe are fixed to the top of the pressure plate. Both the second moving rod and the second guide pipe slide through the sealing strip positioning box. The second guide pipe is slidably sleeved outside the second air supply pipe. The connecting plate fixed at the end of the second moving rod is connected to the sealing strip positioning box by an elastic element.

[0016] The present invention has the following beneficial effects: 1. The present invention controls the bottom of the lower positioning channel to be close to the top of the fireproof door panel, and the lower positioning channel is just in sync with a small part of the top of the fireproof door panel. The edge banding pusher plate pushes the edge banding strip under air pressure, so that it enters the edge banding strip positioning cavity from the edge banding strip feeding port. The edge banding strip entering the edge banding strip positioning cavity falls down along the lower positioning channel and adheres to the cut surface of the top of the fireproof door panel. Then, the pressing plate moves down under air pressure and presses against the top of the edge banding strip on the cut surface, so that the edge banding strip is tightly attached to the cut surface of the top of the fireproof door panel. In this way, a neat weld seam is formed between the edge banding strip and the cut surface, realizing the precise positioning of the edge banding strip on the cut surface of the fireproof door panel, thereby greatly improving the welding quality and processing efficiency of the edge banding strip on the cut surface of the fireproof door panel.

[0017] 2. After completing the laser welding of one side of the weld seam, the present invention starts the welding position switching motor to drive the switching control unit to rotate. The second circumferential motion component moves in a circle under the action of the switching control unit. Under the action of the horizontal guide rod and the welding control screw, the first and second circumferential motion components rotate synchronously until the laser welder is rotated to the other side of the lower positioning channel. At this time, the laser welder is aligned with the weld seam on the other side. When the welding control motor is started to drive the welding control screw to rotate in the opposite direction, the laser welder can be driven back to the initial position on one side. During this process, the laser head two completes the laser welding of the weld seam on the other side. In this way, the welding of the weld seams on both sides of the sealing strip is realized, which improves the welding efficiency.

[0018] 3. This invention drives the laser welding mechanism and the lifting guide assembly to change direction within the direction-changing conveying assembly by rotating the direction-changing control unit. This enables the edge banding at the loading station to be conveyed to the welding point at the welding station. The welding of the edge banding on both sides is achieved through the welding position control process of the laser welder. This control method improves the automation level and welding efficiency of fire door welding. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the welding device used for processing fire doors in this invention.

[0021] Figure 2 This is a flowchart of the welding process of the welding device in this invention from a top-down perspective.

[0022] Figure 3 This is a flowchart of the welding process of the welding device in this invention from a forward-looking angle.

[0023] Figure 4 This is a diagram showing the working state of the laser welding mechanism inside the reversing conveying assembly in this invention.

[0024] Figure 5 This is a schematic diagram of the reversing conveying component in this invention.

[0025] Figure 6 for Figure 5 Enlarged view of the local structure at point A in the middle.

[0026] Figure 7 This is a schematic diagram of the lifting guide assembly in this invention.

[0027] Figure 8 This is a schematic diagram of the laser welding mechanism in this invention.

[0028] Figure 9 This is a schematic diagram of the edge banding positioning component in this invention.

[0029] Figure 10 for Figure 9 A structural diagram viewed from below.

[0030] Figure 11 This is a cross-sectional view of the edge banding positioning component in this invention.

[0031] Figure 12 for Figure 11 Enlarged view of the local structure at point B.

[0032] Figure 13 This is a schematic diagram of the welding assembly in this invention.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1-Reversing Conveyor Component, 101-Reversing Conveyor Frame, 102-Guide Rail Adapter, 103-Entrance Area 1, 104-Reversing Control Motor, 105-Reversing Control Unit, 106-Entrance Area 2, 107-Limiting Channel, 108-Reversing Guide Plate, 109-Guide Channel, 110-Guide Path, 111-Inclined Guide Port, 2-Lifting Guide Component, 201-Lifting Seat, 202-Horizontal Guide Seat, 203-Limiting Guide Channel, 3-Laser Welding Mechanism, 4-Edge Sealing Strip Positioning Component, 401-Edge Sealing Strip Storage Cavity, 402-Edge Sealing Strip Push Plate, 403-Edge Sealing Strip Positioning Cavity, 404-Welding Port, 405-Annular Bearing Frame, 406-Moving Component, 407-Linkage Component, 408-Spherical Guide Component, 409-Welding Position Control Panel, 410-Arc-shaped Channel 411-Edge sealing strip positioning box, 412-Edge sealing strip loading port, 413-Lower extension positioning channel, 414-Edge sealing strip unloading port, 415-Air supply equipment, 416-Air supply pipe one, 417-Air supply pipe two, 418-Pressure relief pipe, 419-Solenoid valve, 420-Moving rod one, 421-Guide pipe one, 422-Elastic component one, 423-Pressure plate, 424-Moving rod two, 425-Guide pipe two, 426-Elastic component two, 5-Welding assembly, 501-Circumferential motion component one, 502-Circumferential motion component two, 503-Horizontal guide rod, 504-Welding control screw, 505-Welder body, 506-Laser head one, 507-Laser head two, 508-Mounting base, 509-Welding control motor, 510-Welding position switching motor, 511-Switching control unit. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] For a specific implementation example, please refer to Implementation Example 1. Figure 1-13This invention relates to a welding device for fire door processing, comprising a reversing conveying assembly 1 mounted on a guide rail, the reversing conveying assembly 1 reciprocating between a loading station and a welding station, a lifting guide assembly 2 slidably mounted on the reversing conveying assembly 1, and a laser welding mechanism 3 horizontally slidably mounted on the lifting guide assembly 2; wherein, the reversing conveying assembly 1 includes a reversing guide part, the laser welding mechanism 3 includes a sealing strip positioning assembly 4 slidably mounted between the lifting guide assembly 2 and the reversing guide part, a welding assembly 5 rotatably mounted on the sealing strip positioning assembly 4, the welding assembly 5 including a reciprocating laser welder; the sealing strip positioning assembly 4 includes a sealing strip storage cavity 401 and a sealing strip positioning cavity 402. 03 and welding opening 404, the inner side of the edge sealing strip storage cavity 401 is slidably provided with an elastically resettable edge sealing strip push plate 402; the edge sealing strip positioning cavity 403 is provided on one side of the edge sealing strip storage cavity 401, and the edge sealing strip push plate 402 is used to push the edge sealing strip in the edge sealing strip storage cavity 401 into the edge sealing strip positioning cavity 403; the welding opening 404 is provided at the bottom of the edge sealing strip positioning cavity 403, and the welding opening 404 is provided on opposite sides of the edge sealing strip positioning cavity 403. When the edge sealing strip positioning cavity 403 moves to the welding point of the welding station, the edge sealing strip in the edge sealing strip positioning cavity 403 adheres to the top of the fireproof door panel, and the weld seam formed is inside the welding opening 404.

[0037] In this embodiment of the invention, such as Figure 5 and Figure 6 As shown, the reversing conveyor assembly 1 also includes a reversing conveyor frame 101. Guide rail adapter seats 102 are fixedly installed on both opposite sides of the reversing conveyor frame 101. The guide rail adapter seats 102 are slidably mounted on the guide rail. It should be noted that the reciprocating motion of the guide rail adapter seats 102 on the guide rail is existing technology. For example, a motor mounted on the guide rail adapter seats 102 drives a roller to rotate, utilizing the friction between the roller and the guide rail to achieve the movement of the reversing conveyor assembly 1 on the guide rail. Therefore, this will not be described in detail here. The top of the conveyor frame 101 is provided with an opening area 103. A reversing control motor 104 is installed on the top of the reversing conveyor frame 101. The output end of the reversing control motor 104 is connected to a reversing control unit 105. Opening areas 106 are provided on both sides of the reversing conveyor frame 101. Limiting channels 107 are provided on the inner side walls of the opening areas 106. The setting of the opening areas 103 and the opening areas 106 ensures that the laser welding mechanism 3 can move freely inside the reversing conveyor frame 101.

[0038] Furthermore, a deflection guide plate 108 is fixedly installed on one side of the deflection conveyor 101. A guide channel 109 is opened on the side of the deflection guide plate 108 near the interior of the deflection conveyor 101. A guide channel 110 is opened inside the guide channel 109. Both the guide channel 109 and the guide channel 110 have the same extension trajectory as the deflection guide plate 108. A sloping guide opening 111 is opened at the top of the deflection guide plate 108 and communicates with the guide channel 110. The sloping guide opening 111 is arranged parallel to the inclined portion of the deflection guide plate 108. The deflection guide part is composed of the deflection guide plate 108, the guide channel 109, the guide channel 110 and the sloping guide opening 111.

[0039] In this embodiment of the invention, such as Figure 7 As shown, the lifting guide assembly 2 includes two symmetrically arranged lifting seats 201. The lifting seats 201 are located inside the passage area 106 and are slidably connected to the limiting channel 107. Two horizontal guide seats 202 are symmetrically fixed between the lifting seats 201. Limiting guide grooves 203 are opened on the inner side wall of the horizontal guide seats 202 along their extension direction. It should be noted that the entire lifting guide assembly 2 is made of lightweight material to reduce the impact of its own weight during the up and down movement of the lifting guide assembly 2.

[0040] In this embodiment of the invention, such as Figure 9 and Figure 10 As shown, the edge banding positioning assembly 4 also includes an annular support frame 405 (lightweight material). Two symmetrical movable parts 406 are fixed to opposite sides of the bottom of the annular support frame 405. The movable parts 406 are slidably disposed inside the corresponding limiting guide grooves 203. A linkage part 407 (round rod shape) and a ball guide part 408 are fixedly disposed on the side of the annular support frame 405 near the deflection guide plate 108. The ball guide part 408 is slidably fitted inside the guide channel 109. The change in the trajectory direction of the ball guide part 408 within the guide channel 109 achieves the change in the movement direction of the entire edge banding positioning assembly 4. The linkage part 407... 7. The linkage 407 is installed inside the guide channel 110 and sleeved in the cavity of the direction control part 105. The linkage 407 only engages with the inside of the guide channel 110 during the horizontal movement of the edge sealing strip positioning assembly 4. In this embodiment, the guide channel 109 can be divided into a horizontal channel, an inclined channel and a vertical channel. When the ball guide 408 moves horizontally along the horizontal channel to the intersection with the inclined channel, the linkage 407 moves to the position of the inclined guide opening 111. Then, when the ball guide 408 moves upward along the inclined channel, the linkage 407 moves upward along the inclined guide opening 111 and disengages from the horizontal channel on the guide channel 109.

[0041] In this embodiment of the invention, such as Figure 9 , Figure 11 and Figure 12As shown, welding position control panels 409 are fixedly installed on both sides of the annular support frame 405. An arc-shaped channel 410 coaxial with the welding position control panel 409 is opened on the welding position control panel 409. An edge banding positioning box 411 is fixedly installed inside the annular support frame 405. An edge banding storage cavity 401 is provided inside the edge banding positioning box 411. An edge banding feeding port 412 communicating with the edge banding storage cavity 401 is opened at the top of the edge banding positioning box 411. A lower positioning channel 413 is fixedly installed at the bottom of the edge banding positioning box 411. The lower positioning channel 413 is connected to... An edge banding positioning cavity 403 is provided between the edge banding positioning boxes 411. The edge banding storage cavity 401 and the edge banding positioning cavity 403 are connected through the edge banding discharge port 414. It should be noted that in this embodiment, the edge banding loading port 412, the edge banding storage cavity 401, the edge banding positioning cavity 403 and the edge banding discharge port 414 have the same width, so that the edge banding with the same width as the edge banding loading port 412 can enter the edge banding positioning cavity 403 in sequence through the edge banding storage cavity 401 and the edge banding discharge port 414.

[0042] Specific embodiment two, based on specific embodiment one, such as Figure 13 As shown, the welding assembly 5 also includes a first circumferential moving member 501 and a second circumferential moving member 502 arranged opposite to each other. The first circumferential moving member 501 and the second circumferential moving member 502 are slidably connected to the corresponding arc-shaped channel 410. A horizontal guide rod 503 and a welding control screw 504 are respectively arranged between the first circumferential moving member 501 and the second circumferential moving member 502. The horizontal guide rod 503 is fixed between the first circumferential moving member 501 and the second circumferential moving member 502. The welding control screw 504 is rotatably arranged between the first circumferential moving member 501 and the second circumferential moving member 502. Between 01 and the second circumferential moving part 502; the laser welder consists of a welder body 505, a first laser head 506 and a second laser head 507 (this laser welder is a conventional dual-laser head welder in the prior art, and its specific structure is in the prior art, so it will not be described in detail here). The welder body 505 is sleeved between the horizontal guide rod 503 and the welding control screw 504. The horizontal guide rod 503 is slidably connected to the welder body 505, and the welding control screw 504 is threadedly connected to the welder body 505.

[0043] Furthermore, a mounting base 508 is fixedly installed on the outer side of the circumferential moving part 501. A welding control motor 509 is mounted on the mounting base 508. The welding control screw 504 is connected to the output end of the welding control motor 509. Initially, the laser welder is located at one end of the lower extension positioning channel 413. When the welding control motor 509 is started to drive the welding control screw 504 to rotate, the laser welder can move along the extension direction of the welding port 404 to the other end of the lower extension positioning channel 413 by means of the cooperation between the welding control screw 504 and the welder body 505. At this time, the laser welding work on one side of the weld seam can be completed (welding is performed through the upper laser head 506). A welding position switching motor 510 is installed on the welding position control disk 409 corresponding to the circumferential moving part 502. The output shaft of the welding position switching motor 510 is connected to the switching control unit 511. The end of the horizontal guide rod 503 away from the welding control motor 509 is cut through. After completing the laser welding work on one side of the weld seam, the switch control unit 511 is activated by the welding position switching motor 510 to drive the switch control unit 511 to rotate. The second circumferential motion component 502 moves in a circumferential direction under the action of the switch control unit 511. Under the action of the horizontal guide rod 503 and the welding control screw 504, the first circumferential motion component 501 and the second circumferential motion component 502 rotate synchronously until the laser welder is rotated to the other side of the lower extension positioning channel 413. At this time, the laser welder is aligned with the weld seam on the other side. When the welding control motor 509 is activated to drive the welding control screw 504 to rotate in the opposite direction, the laser welder can be driven back to the initial position. During this process, the laser head 507 completes the laser welding work on the other side of the weld seam. Then, the switch control unit 511 is driven to rotate in the opposite direction by the welding position switching motor 510 to rotate the laser welder back to the initial position. The above process is the laser welding process.

[0044] Specific embodiment three, based on specific embodiment one, such as Figure 9 and Figure 10 As shown, an air supply device 415 is installed on the side of the annular support frame 405 away from the spherical guide 408. An air supply pipe 416 is connected to the outlet end of the air supply device 415. An air supply pipe 417 is connected to the top of the air supply pipe 416. A solenoid valve 419 is installed on a pressure relief pipe 418 on the air supply pipe 416 and on the air supply pipe 417. A movable rod 420 and a guide pipe 421 fixed on one side of the edge sealing strip push plate 402 slide through the edge sealing strip positioning box 411 and the annular support frame 405. The guide pipe 421 is slidably sleeved outside the air supply pipe 416. A connecting plate fixed at the end of the movable rod 420 is connected to the annular support frame 405 via an elastic element 422. Initially, the edge sealing strip push plate 402 is tightly pressed against the inner wall of the edge sealing strip storage cavity 401 under the action of the elastic element 422 (e.g., ...). Figure 11As shown, this facilitates the insertion of the edge banding strip from the edge banding strip feeding port 412 into the edge banding strip storage channel 401, which provides support for the edge banding strip before laser welding.

[0045] In this embodiment of the invention, such as Figure 12 As shown, a pressure plate 423 is provided inside the sealing strip positioning cavity 403. A moving rod 424 and a guide pipe 425 are fixed to the top of the pressure plate 423. The moving rod 424 and the guide pipe 425 slide through the sealing strip positioning box 411 (a limiting plate is fixed to the top of the guide pipe 425 to prevent the guide pipe 425 from detaching from the air supply pipe 417, which is not shown in the figure). The guide pipe 425 is slidably sleeved on the outside of the air supply pipe 417. The connecting plate fixed at the end of the moving rod 424 is connected to the sealing strip positioning box 411 through an elastic element 426. Initially, the pressure plate 423 is tightly attached to the top of the sealing strip positioning cavity 403 under the action of the elastic element 426, which facilitates the sealing strip to enter the sealing strip positioning cavity 403 from the sealing strip storage cavity 401 through the sealing strip discharge port 414.

[0046] At the loading station, the worker places the edge banding strip into the edge banding strip storage cavity 401 through the edge banding strip loading port 412. Then, the reversing control motor 104 is activated, driving the reversing control unit 105 to rotate. Under the action of the reversing control unit 105, the linkage 407 moves horizontally towards the inclined guide port 111. This achieves the horizontal movement of the entire laser welding mechanism 3 along the lifting guide assembly 2 and the guide channel 109 towards the inclined guide port 111. During this process, the ball guide 408 slides along the horizontal groove of the guide channel 109. The linkage 407 slides along the guide channel 110. When the ball guide 408 moves horizontally along the horizontal groove to the intersection with the inclined groove, the linkage 407 just moves to the position of the inclined guide opening 111. As the reversing control unit 105 continues to rotate, since the ball guide 408 always slides along the guide channel 109, the subsequent laser welding mechanism 3 continues to slide horizontally along the lifting guide assembly 2 while gradually rising until the laser welding mechanism 3 rises to a position close to the top of the reversing conveyor frame 101. This process is as follows: Figure 3 (A1) and Figure 3 (A2) and Figure 4 (B1) and Figure 4 As shown in (B2).

[0047] Next, the reversing conveyor 1 is controlled to move along the guide rail to the welding station. At this time, the lower positioning channel 413 is directly above the fire door panel (precise positioning, set by the system). Figure 2 (C1) reflects the direction of motion of the laser welding mechanism 3. Figure 2(C2) reflects the movement direction of the reversing conveyor assembly 1. Subsequently, the reverse rotation of the reversing control unit 105 drives the laser welding mechanism 3 and the lifting guide assembly 2 to descend to a certain height and reach the set position, such as... Figure 3 (A3) and Figure 4 As shown in (B3), at this time, the bottom of the lower positioning channel 413 is close to the top of the fireproof door panel (i.e., the cut surface of the door panel), and the lower positioning channel 413 just matches a small part of the top of the fireproof door panel. Then, air is supplied to the guide pipe 421 through the air supply device 415 and the first air supply pipe 416. Under the action of air pressure, the edge sealing strip push plate 402 pushes the edge sealing strip to move so that it enters the edge sealing strip positioning cavity 403 from the edge sealing strip feeding port 414. The edge sealing strip that enters the edge sealing strip positioning cavity 403 falls down along the lower positioning channel 413 and adheres to the cut surface of the top of the fireproof door panel. Then, the second air supply pipe 417 is opened. The solenoid valve 419 on the upper part supplies air to the guide pipe 425 through the air supply device 415, air supply pipe 416 and air supply pipe 417. Under the action of air pressure, the pressure plate 423 moves downward and presses against the top of the edge sealing strip on the cut surface, so that the edge sealing strip is tightly attached to the cut surface of the top of the fireproof door panel (at this time, the solenoid valve 419 on the air supply pipe 417 is closed). In this way, a neat weld seam is formed between the edge sealing strip and the cut surface. Through the above control method, the edge sealing strip is accurately positioned on the cut surface of the fireproof door panel, which can greatly improve the welding quality and processing efficiency of the edge sealing strip on the cut surface of the fireproof door panel.

[0048] When the pressure plate 423 presses the edge banding strip tightly against the cut surface of the top of the fireproof door panel, the laser welder completes the welding of one side of the weld seam. Then, the rotation of the reversing control unit 105 drives the laser welding mechanism 3 and the lifting guide assembly 2 to move upwards back to their initial positions. The laser welder is then controlled to rotate to the other side of the lower positioning channel 413. Again, the reversing rotation of the reversing control unit 105 drives the laser welding mechanism 3 and the lifting guide assembly 2 to descend a certain height to the set position, where the laser welder again completes the welding of the other side of the weld seam. This completes the laser welding of the edge banding strip on the cut surface of the top of the fireproof door panel. Then, the rotation of the reversing control unit 105 drives the laser welding mechanism 3 and the lifting guide assembly 2 to move upwards back to their initial positions, and then the reversing conveying assembly 1... The device moves back to the loading station along the guide rail. Finally, the laser welding mechanism 3 and the lifting guide assembly 2 are reset by the reverse rotation of the reversing control unit 105. At this time, the solenoid valve 419 on the pressure relief pipe 418 and the solenoid valve 419 on the second air supply pipe 417 are opened to release pressure, so that the edge sealing strip push plate 402 and the pressure plate 423 are reset. Then, the solenoid valve 419 on the pressure relief pipe 418 and the solenoid valve 419 on the second air supply pipe 417 are closed, the next edge sealing strip is placed into the edge sealing strip storage cavity 401, and the fireproof door panel that has completed the edge sealing process is moved from the corresponding position and another fireproof door panel to be processed is placed. In this way, the welding process of the fireproof door can continue. The above control method improves the automation level and welding efficiency of the fireproof door welding process.

[0049] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A welding device for processing fire doors, characterized in that, It includes a reversing conveying assembly (1) mounted on a guide rail, which reciprocates between the loading station and the welding station. A lifting guide assembly (2) is slidably mounted on the reversing conveying assembly (1), and a laser welding mechanism (3) is slidably mounted on the lifting guide assembly (2). The reversing conveying component (1) includes a reversing guide, and the laser welding mechanism (3) includes a sealing strip positioning component (4) that is slidably disposed between the lifting guide component (2) and the reversing guide. A welding component (5) is rotatably disposed on the sealing strip positioning component (4), and the welding component (5) includes a reciprocating laser welder. The edge banding positioning component (4) includes: An edge sealing strip storage cavity (401) is provided with an elastically resettable edge sealing strip pusher plate (402) slidably disposed on the inner side of the edge sealing strip storage cavity (401). An edge sealing strip positioning cavity (403) is provided on one side of the edge sealing strip storage cavity (401), and the edge sealing strip pusher plate (402) is used to push the edge sealing strip in the edge sealing strip storage cavity (401) into the edge sealing strip positioning cavity (403); A welding port (404) is provided at the bottom of the edge banding positioning cavity (403). The welding port (404) is provided on both sides of the edge banding positioning cavity (403). When the edge banding positioning cavity (403) moves to the welding point of the welding station, the edge banding in the edge banding positioning cavity (403) is attached to the top of the fireproof door panel, and the weld seam formed is inside the welding port (404). The reversing conveying assembly (1) further includes a reversing conveying frame (101). The reversing conveying frame (101) is fixedly installed with guide rail adapter seats (102) on both sides. The guide rail adapter seats (102) are slidably arranged on the guide rail. The top of the reversing conveying frame (101) is provided with an opening area one (103). The top of the reversing conveying frame (101) is provided with a reversing control motor (104). The output end of the reversing control motor (104) is connected to a reversing control unit (105). The reversing conveying frame (101) is provided with an opening area two (106) on both sides. The opening area two (106) is provided with a limit channel (107) on both inner sidewalls. A reversing guide plate (108) is fixedly installed on one side of the reversing conveyor frame (101). A guide channel (109) is opened on the side of the reversing guide plate (108) close to the interior of the reversing conveyor frame (101). A guide channel (110) is opened inside the guide channel (109). The guide channel (109) and the guide channel (110) are both the same as the extension trajectory of the reversing guide plate (108). A sloping guide opening (111) communicating with the guide channel (110) is opened on the top of the reversing guide plate (108). The sloping guide opening (111) is arranged parallel to the inclined part of the reversing guide plate (108). The reversing guide part is composed of the reversing guide plate (108), the guide channel (109), the guide channel (110) and the sloping guide opening (111). The lifting guide assembly (2) includes two symmetrically arranged lifting seats (201). The lifting seats (201) are located inside the passage area two (106) and are slidably connected to the limiting channel (107). Two horizontal guide seats (202) are symmetrically fixed between the lifting seats (201). A limiting guide groove (203) is opened on the inner side wall of the horizontal guide seat (202) along its extension direction. The edge banding positioning assembly (4) also includes an annular support frame (405). Two symmetrical moving parts (406) are fixed on opposite sides of the bottom of the annular support frame (405). The moving parts (406) are slidably disposed inside the corresponding limiting guide groove (203). A linkage part (407) and a ball guide part (408) are fixedly disposed on the side of the annular support frame (405) near the deflection guide plate (108). The ball guide part (408) is slidably fitted inside the guide channel (109). The linkage part (407) passes through the guide channel (110) and is sleeved in the inner cavity of the deflection control part (105).

2. The welding device for processing fire doors according to claim 1, characterized in that, The annular support frame (405) is fixedly installed with welding position control panels (409) on both sides. The welding position control panels (409) are provided with an arc-shaped channel (410) coaxial with them. The annular support frame (405) is fixedly installed with a sealing strip positioning box (411). The sealing strip positioning box (411) is provided with a sealing strip storage cavity (401) inside. The top of the sealing strip positioning box (411) is provided with a sealing strip feeding port (412) communicating with the sealing strip storage cavity (401). The bottom of the sealing strip positioning box (411) is fixedly installed with a lower extension positioning channel (413). The lower extension positioning channel (413) and the sealing strip positioning box (411) are provided with a sealing strip positioning cavity (403). The sealing strip storage cavity (401) and the sealing strip positioning cavity (403) are connected through the sealing strip feeding port (414).

3. The welding device for processing fire doors according to claim 2, characterized in that, The welding assembly (5) further includes a first circumferential moving part (501) and a second circumferential moving part (502) arranged opposite to each other. The first circumferential moving part (501) and the second circumferential moving part (502) are slidably connected to the corresponding arc-shaped channel (410). A horizontal guide rod (503) and a welding control screw (504) are respectively arranged between the first circumferential moving part (501) and the second circumferential moving part (502). The horizontal guide rod (503) is fixed between the first circumferential moving part (501) and the second circumferential moving part (502). The welding control screw (504) is rotatably arranged between the first circumferential moving part (501) and the second circumferential moving part (502). The laser welder consists of a welder body (505), a laser head one (506), and a laser head two (507). The welder body (505) is sleeved between a horizontal guide rod (503) and a welding control screw (504). The horizontal guide rod (503) is slidably connected to the welder body (505), and the welding control screw (504) is threadedly connected to the welder body (505).

4. The welding device for processing fire doors according to claim 3, characterized in that, A mounting base (508) is fixedly provided on the outer side of the first circumferential motion component (501). A welding control motor (509) is installed on the mounting base (508). The welding control screw (504) is connected to the output end of the welding control motor (509). A welding position switching motor (510) is installed on the welding position control panel (409) corresponding to the second circumferential motion component (502). The output shaft of the welding position switching motor (510) is connected to a switching control unit (511). The end of the horizontal guide rod (503) away from the welding control motor (509) passes through the inner cavity of the switching control unit (511).

5. The welding device for processing fire doors according to claim 4, characterized in that, An air supply device (415) is installed on the side of the annular support frame (405) away from the ball guide (408). The air supply device (415) is connected to an air supply pipe (416) at its outlet. An air supply pipe (417) is connected to the top of the air supply pipe (416). A solenoid valve (419) is installed on the pressure relief pipe (418) installed on the air supply pipe (416). A solenoid valve (419) is installed on the air supply pipe (417). A moving rod (420) and a guide pipe (421) fixed on one side of the edge sealing strip push plate (402) slide through the edge sealing strip positioning box (411) and the annular support frame (405). The guide pipe (421) is slidably sleeved outside the air supply pipe (416). The connecting plate fixed at the end of the moving rod (420) is connected to the annular support frame (405) through an elastic element (422).

6. The welding device for processing fire doors according to claim 5, characterized in that, The sealing strip positioning cavity (403) is provided with a pressure plate (423). The top of the pressure plate (423) is fixed with a second moving rod (424) and a second guide pipe (425). The second moving rod (424) and the second guide pipe (425) slide through the sealing strip positioning box (411). The second guide pipe (425) is slidably sleeved on the outside of the second air supply pipe (417). The connecting plate fixed at the end of the second moving rod (424) is connected to the sealing strip positioning box (411) through an elastic element (426).

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