Roof waterproof roll laying device

Abstract

The invention discloses a roof waterproof roll laying device. The roof waterproof roll laying device comprises a moving platform, a horizontal laying mechanism, a horizontal included angle compacting mechanism, a vertical included angle laying mechanism and a folding conveying assembly, the horizontal laying mechanism comprises a discharging roller and a first compacting assembly used for compacting a horizontal plane coiled material. The horizontal included angle compaction mechanism comprises a first driving part and a right-angle extrusion part driven by the first driving part, and is used for extruding the coiled material and tightly attaching the coiled material to an included angle between a horizontal surface and a vertical surface; the vertical included angle laying mechanism comprises a second compacting assembly used for compacting the vertical face coiled material and a wall corner compacting assembly used for compacting the coiled material at the wall corner. The folding and conveying assembly comprises a folding and compacting mechanism used for grabbing and folding the coiled materials and a conveying mechanism used for conveying the folded coiled materials to a target position. According to the device, laying and compacting of coiled materials on the horizontal plane and the vertical plane of a roof can be achieved, meanwhile, compacting operation can be conducted on included angle parts, the labor intensity of workers is relieved, and the laying and compacting efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of roof waterproofing technology, and in particular to a roof waterproofing membrane laying device. Background Technology

[0002] Roof waterproofing is a crucial aspect of building construction, directly impacting the building's lifespan and the safety of its interior spaces. Currently, the installation of roof waterproofing membranes primarily relies on manual labor. During installation, the membrane often requires heat fusion to bond it to the substrate, followed by compaction. This process exposes workers to prolonged exposure to high temperatures and altitudes outdoors (such as on rooftops), and they are directly exposed to harmful chemical gases generated during heat fusion, posing a serious threat to their health and safety. Existing waterproofing membrane installation machinery typically limits its functionality to simple membrane spreading and compaction on horizontal surfaces. However, when dealing with complex geometric structures such as vertical walls, horizontal-vertical wall angles, vertical-vertical wall angles, and three-sided corners, manual compaction is still necessary, which is time-consuming and labor-intensive. Summary of the Invention

[0003] The purpose of this invention is to provide a roof waterproof membrane laying device. This invention can lay and compact waterproof membrane on both the horizontal and vertical surfaces of a roof, and can also compact the waterproof membrane at the corners of the roof, reducing manual labor intensity and improving laying and compaction efficiency.

[0004] The technical solution of the present invention: a roof waterproof membrane laying device, comprising: a mobile platform, and a horizontal laying mechanism, a horizontal angle compaction mechanism, a vertical angle laying mechanism, and a folding conveyor assembly installed on the mobile platform; The horizontal laying mechanism includes a feeding roller for placing and releasing the waterproof membrane and a first compaction assembly for pressing the released membrane firmly onto a horizontal surface. The horizontal angle compaction mechanism includes a first driving member and a right-angle extrusion member connected to its driving end, which is used to extrude and tightly adhere the waterproof membrane to the angle when the moving platform travels to the angle between the horizontal plane and the vertical wall. The vertical angle laying mechanism includes a second compaction component for pressing the roll material firmly onto a vertical wall surface and a corner compaction component for pressing the roll material at a right angle at the corner of the wall. The folding conveyor assembly includes a folding and compacting mechanism for gripping and folding the roll material, and a conveying mechanism for transporting the folded roll material to a target location.

[0005] The above-mentioned roof waterproof membrane laying device includes a first compaction component comprising a main compaction roller, which is installed on the moving platform via a first slide rail lifting mechanism and driven to lift by a first cylinder; auxiliary compaction rollers are respectively provided on both sides of the main compaction roller; the first compaction component is used to provide compaction pressure perpendicular to the horizontal plane when laying the membrane.

[0006] The aforementioned roof waterproof membrane laying device further includes a heating component located behind the feeding roller. The heating component is mounted on the moving platform via an elastic connector to maintain contact with the laid membrane.

[0007] In the aforementioned roof waterproof membrane laying device, the first driving component of the horizontal angle compaction mechanism is a second cylinder, and the angle between the pressing surfaces of the right-angle pressing component is 90 degrees, and the angle between its ejection direction and the horizontal plane is set to 45 degrees, so that when the cylinder extends, its two pressing surfaces are parallel to and in contact with the horizontal ground and the vertical wall respectively.

[0008] The aforementioned roof waterproof membrane laying device includes a second compaction component comprising a sliding member that can slide toward a vertical wall and an elastic force-applying member for applying pressure to the sliding member to press it toward the vertical wall. The sliding member is provided with a compaction roller for contacting the waterproof membrane.

[0009] The aforementioned roof waterproof membrane laying device includes a corner compaction component comprising two symmetrically arranged mounting plates, with a drive motor fixedly mounted between the mounting plates. The output end of the drive motor is connected to a gear transmission pair, and the output end of the gear transmission pair is connected to a rotating shaft. The upper and lower ends of the rotating shaft are equipped with cams in the shape of curved triangles. A square frame is mounted on the mounting plate. The cams are rotatably embedded within the square frame. A first connecting rod is hinged to the middle portion of each adjacent right-angled side of the inner side of the square frame, and a second connecting rod is hinged to the outer end of each first connecting rod. The end of the second connecting rod is hinged to the mounting plate. A synchronizing rod is also connected between the outer ends of the two first connecting rods. The cams cooperate with the square frame, allowing the square frame to complete a right-angle movement from one wall to an adjacent vertical wall under the drive of the drive motor, thereby compacting the membrane at the corner.

[0010] The aforementioned roof waterproof membrane laying device includes a folding and compacting mechanism comprising a main board with an isosceles right-angled triangle at the front end, side plates connected to the two right-angled sides of the main board by hinges, a folding drive component for driving the side plates to rotate relative to the main board, and a gripping component for gripping the waterproof membrane placed below the main board; the side plates are provided with a gripping drive component for driving the gripping action of the gripping component.

[0011] The aforementioned roof waterproof membrane laying device includes a conveying mechanism comprising a horizontal conveying unit and a vertical conveying unit. The horizontal conveying unit is used to drive the folding and compacting mechanism to move in the horizontal direction, and the vertical conveying unit is used to drive the folding and compacting mechanism to move in the vertical direction.

[0012] The aforementioned roof waterproof membrane laying device includes a horizontal conveying unit comprising a first drive motor and a first synchronous belt mechanism driven by the first drive motor. A first slider is provided on the first synchronous belt mechanism, and the vertical conveying unit is mounted on the first slider.

[0013] The aforementioned roof waterproof membrane laying device includes a vertical conveying unit comprising a second drive motor and a second synchronous belt mechanism driven by the second drive motor, wherein a second slider is provided on the second synchronous belt mechanism; the folding and compacting mechanism is fixedly connected to the second slider.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention can complete complex processes in roof waterproofing projects, such as horizontal laying, horizontal-vertical angle compression, vertical wall laying and compaction, vertical corner compaction, and folding and precise placement of the roll material at three corners. It greatly reduces the reliance on manual labor and solves the problem of the single function of existing machinery.

[0015] 2. This invention, through a main compaction roller driven by a first cylinder and auxiliary compaction rollers on both sides, provides uniform and controllable vertical compaction pressure, ensuring a smooth, bubble-free horizontal surface. The invention also utilizes a right-angle extrusion component driven by a second cylinder, with a specific 45-degree pop-out angle, to automatically and precisely compress the roll material and press it tightly against the corner when the moving platform reaches it, ensuring a seal at the inside / outside corner. Furthermore, the corner compaction component drives a square frame to complete a standardized right-angle movement from one wall to an adjacent wall, achieving mechanical and highly consistent compaction of the roll material at vertical corners. This overcomes the shortcomings of uneven pressure and difficulty in achieving the correct position during manual compaction, fundamentally enhancing the reliability of weak points in waterproofing.

[0016] 3. The folding and compacting mechanism of this invention features a main board with an isosceles right-angled triangle shape at the front end and foldable side plates, enabling efficient folding of the roll material into the desired three-dimensional right-angled shape. The horizontal and vertical synchronous belt drive units of the conveying mechanism drive the folding mechanism to precisely position itself in three-dimensional space. Thus, through the collaboration of the folding and compacting mechanism and the conveying mechanism, the planar roll material is grasped, folded into a three-dimensional shape, and conveyed to the target location.

[0017] 4. The invention has a compact overall structure, which makes it easy to move and deploy in limited spaces such as rooftops. It automates the horizontal laying and multi-angle compaction of the roll material, greatly reducing labor intensity and improving construction efficiency and safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 This is a schematic diagram of the horizontal laying mechanism; Figure 3 This is a schematic diagram of the horizontal angle compaction mechanism; Figure 4 This is a schematic diagram of the vertical angle laying mechanism; Figure 5 This is a structural schematic diagram of the second compaction component and the corner compaction component; Figure 6 This is a schematic diagram showing the interaction between the square frame and the cam; Figure 7 This is a structural schematic diagram of the folding conveyor assembly.

[0019] Explanation of markings in the attached diagram: 1. Moving platform; 2. Horizontal laying mechanism; 3. Horizontal angle compaction mechanism; 4. Vertical angle laying mechanism; 5. Folding conveyor assembly; 21. Feeding roller; 22. First compaction component; 221. Main compaction roller; 222. First slide rail lifting mechanism; 223. First cylinder; 224. Secondary pressure roller; 23. Heating component; 24. Elastic connector; 31. First driving component; 32. Right-angle extrusion component; 41. Second compaction component; 411. Sliding component; 412. Elastic force application component; 413. Compaction roller; 42. Corner compaction component; 420. Installation. 421. Plate; 422. Drive motor; 423. Gear transmission pair; 424. Cam; 425. Rotating shaft; 426. Square frame; 427. First connecting rod; 428. Second connecting rod; 429. Synchronizing rod; 51. Folding and compacting mechanism; 511. Main board; 512. Hinge; 513. Side plate; 514. Folding drive component; 515. Gripping assembly; 516. Gripping drive component; 52. Conveying mechanism; 521. First drive motor; 522. First synchronous belt mechanism; 523. First slider; 524. Second drive motor; 525. Second synchronous belt mechanism; 526. Second slider. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0021] Example: A roof waterproofing membrane laying device, such as Figures 1 to 7 As shown, it includes a mobile platform 1 that can move autonomously, and a horizontal laying mechanism 2, a horizontal angle compaction mechanism 3, a vertical angle laying mechanism 4, and a folding conveyor assembly 5 integrated on the mobile platform 1.

[0022] like Figure 1 and Figure 2 As shown, the horizontal laying mechanism 2 is mainly used for unwinding, heating, and compacting waterproof membrane on a horizontal surface of the roof. Specifically, it includes: a release roller 21 for installing and releasing the membrane, and a first compaction component 22 for compacting the released membrane onto the horizontal surface.

[0023] The first compaction assembly 22 is located downstream of the discharge roller 21 (i.e., behind it in the direction of the trolley's movement). It includes a main compaction roller 221 as the primary compaction element, and auxiliary compaction rollers 224 located on both sides of the main compaction roller 221. The main compaction roller 221 is mounted on the frame of the mobile platform 1 via a first slide rail lifting mechanism 222. The first slide rail lifting mechanism 222 includes a vertically arranged slide rail and a sliding block that cooperates with it. The shaft end of the main compaction roller 221 is fixed to the sliding block. The sliding block is connected to the drive end of a first cylinder 223. In this embodiment, the first cylinder 223 is the drive component of the first compaction assembly 22. By controlling the extension and retraction of the first cylinder 223, the main compaction roller 221 can be driven to rise and fall vertically, thereby adjusting its compaction pressure on the ground roll material. Two auxiliary pressure rollers 224 are symmetrically arranged relative to the main pressure roller 221 and at a certain angle (e.g., 15-30 degrees) to the horizontal plane to compact the edges of the roll material and prevent the edges from curling up or generating air bubbles.

[0024] In addition, the horizontal laying mechanism 2 also includes a heating component 23. This heating component 23 is disposed between the feeding roller 21 and the first compaction component 22, and is used to heat and soften the roll material before compaction to enhance its adhesion to the ground. In this embodiment, the heating component 23 is an electric heating rod. To avoid uneven heating caused by rigid connections, the electric heating rod is mounted on the moving platform 1 via an elastic connector 24. The elastic connector 24 is preferably a spring, which always applies a spring force towards the ground to the electric heating rod, enabling it to adapt to minor undulations in the ground and maintain close contact with the upper surface of the laid roll material, achieving uniform heating. The electric heating rod replaces the traditional manual blowtorch, improving the safety and uniformity of heating.

[0025] like Figure 3 As shown, the horizontal angle compaction mechanism 3 is used to compact the roofing membrane at the inside corner formed between the horizontal ground and the vertical wall. It should be noted that the roofing membrane here is pre-laid and heated manually; this mechanism is only used for the compaction operation. The mechanism includes a first driving component 31 and a right-angle pressing component 32.

[0026] In this embodiment, the first driving component 31 is preferably a second cylinder. The cylinder body of the second cylinder is fixed to the frame of the mobile platform 1, and its piston rod serves as the driving end. The right-angle extrusion component 32 is fixedly connected to the end of the piston rod. The right-angle extrusion component 32 is a 3D printed part with a 90-degree angled extrusion surface, and its two extrusion surfaces are respectively used to correspond to the horizontal ground and the vertical wall surface.

[0027] To achieve optimal compression posture, the ejection direction of the second cylinder is precisely set to form a 45-degree angle with the horizontal plane. When the moving platform 1 moves to the target corner and the right-angle extrusion member 32 is aligned with the angle, the second cylinder is rapidly extended via a solenoid valve. At this time, the two extrusion surfaces of the right-angle extrusion member 32 will be parallel to and tightly fitted to the horizontal ground and vertical wall, respectively, thereby precisely extruding the waterproof membrane already laid in the corner into the inside corner, forming a right-angle shape that perfectly fits the corner. As the moving platform 1 moves along the wall, this mechanism can complete the laying and compaction of the membrane along the entire horizontal-vertical angle line.

[0028] like Figures 4-6 As shown, the vertical angle laying mechanism 4 is used to handle the laying and compaction of roll material on vertical walls and at the external corners formed between two vertical walls. It should be noted that the heating method used here is the same as that of the horizontal laying mechanism 2, or it can be manually heated during laying. It includes a second compaction component 41 and a corner compaction component 42.

[0029] The second compaction assembly 41 is used to compact the roll material onto the vertical wall surface as the moving platform 1 moves along the vertical wall. Specifically, it includes: a sliding member 411 that can slide horizontally towards the vertical wall surface, an elastic force-applying member 412 for providing continuous pressure to the sliding member 411, and a compaction roller 413 disposed at the end of the sliding member 411. The sliding member 411 is mounted on a horizontally arranged slide rail. The elastic force-applying member 412 is preferably a gas spring, one end of which is fixed to the frame, and the other end abuts against the sliding member 411. Under the elastic force of the gas spring, the compaction roller 413 always maintains a set pressure against the vertical wall surface, firmly compacting the roll material released by the moving platform 1 onto the wall surface.

[0030] The corner compaction component 42 is used to press the roll material into and fit it against the 90-degree external corner when it is laid at the corner between two vertical walls. This component includes two symmetrically arranged mounting plates 420, with a drive motor 421 fixedly mounted between them. The output end of the drive motor 421 is connected to a gear transmission pair 422, and the output end of the gear transmission pair 422 is connected to a vertically arranged rotating shaft 424. A cam 423 in the shape of a curved triangle is fixedly mounted at each of the upper and lower ends of the rotating shaft 424.

[0031] Meanwhile, each of the two mounting plates 420 has a square frame 425. Each square frame 425 is a frame with 90-degree interior angles, and a first connecting rod 426 is hinged to the middle of each of its two adjacent right-angled sides. A second connecting rod 427 is hinged to the outer end of each first connecting rod 426, and the end of the second connecting rod 427 is hinged to the mounting plate 420. Furthermore, a synchronizing rod 428 connects the outer ends of the two first connecting rods 426 to ensure synchronized movement. The cam 423 is rotatably fitted within the square frame of the square frame 425.

[0032] When the waterproof membrane is laid to a corner, the drive motor 421 drives the rotating shaft 424 and cam 423 to rotate via the gear transmission pair 422. During rotation, the curved triangular contour of the cam 423 pushes against the inner wall of the square frame 425. Under the combined constraints of the cam 423, the first connecting rod 426, the second connecting rod 427, and the synchronizing rod 428, the square frame 425 completes a standard 90-degree right-angle movement from one vertical wall to an adjacent vertical wall. This movement precisely presses the waterproof membrane at the corner into and adheres it to the corner, ensuring a tight and seamless installation of the membrane at the vertical angle. The drive motor 421 can be a stepper motor; by controlling its rotation angle (e.g., 270 degrees), the reciprocating compaction action of the square frame 425 can be precisely controlled.

[0033] like Figure 7 As shown, the folding and conveying assembly 5 is used to handle the laying of roll material at the corner where three surfaces (i.e., the horizontal ground and two vertical walls) meet (three-sided corner). It should be noted that the laying is done manually by heat-melting during the laying process. The assembly includes a folding and compacting mechanism 51 and a conveying mechanism 52.

[0034] The folding and compacting mechanism 51 is used to fold the flat waterproof membrane into a three-dimensional shape that matches the three corners of the walls. Its specific structure includes: a main plate 511 with an isosceles right-angled triangle at its front end; side plates 513 connected to the two right-angled sides of the main plate 511 via hinges 512 (e.g., hinges); a folding drive 514 (e.g., a cylinder) for driving the side plates 513 to rotate relative to the main plate 511; and a gripping assembly 515 for gripping the membrane. The gripping assembly 515 is mounted on the side plates 513 and is driven by the gripping drive 516 (e.g., a cylinder) to perform gripping or releasing actions.

[0035] During operation, a waterproof roll is first placed under the main board 511. Then, the gripping drive 516 drives the gripping assembly 515 (e.g., the print claw) to snap downwards, securely gripping the roll onto the main board 511 and the bottom surface of the side plate 513. Next, the folding drive 514 retracts, pulling the two side plates 513 upwards by 90 degrees around the hinge 512, thereby folding the originally flat roll upwards on both sides to form a three-dimensional right-angled shape that matches the shape of the three corners of the wall.

[0036] The conveying mechanism 52 is used to precisely transport the folded roll material to the three corners of the wall where it will be laid. This mechanism includes a horizontal conveying unit and a vertical conveying unit.

[0037] The horizontal conveying unit includes a first drive motor 521 and a first synchronous belt mechanism 522 driven by it. A first slider 523 is fixed on the synchronous belt of the first synchronous belt mechanism 522. When the first drive motor 521 rotates, the first slider 523 can move precisely in the horizontal direction. The overall frame of the vertical conveying unit is mounted on the first slider 523, and thus moves horizontally with it.

[0038] The vertical conveying unit includes a second drive motor 524 and a second synchronous belt mechanism 525 driven by it. A second slider 526 is fixed on the synchronous belt of the second synchronous belt mechanism 525. The folding and compacting mechanism 51 (specifically its main board 511) is fixedly connected to the second slider 526. When the second drive motor 524 rotates, the second slider 526 can drive the entire folding and compacting mechanism 51 to move precisely in the vertical direction.

[0039] Through the coordinated action of the horizontal and vertical conveying units, the folding and compacting mechanism 51, which grips and folds the roof roll, can be precisely positioned at the designated locations on the three corners of the roof. After reaching the target position, the gripping drive 516 actuates again, causing the gripping assembly 515 to release, and the folded three-dimensional roof roll accurately falls into the three corners, completing the installation.

[0040] The workflow of the roof waterproofing membrane laying device provided in this embodiment is as follows: Horizontal laying: The mobile platform 1 moves along the planned path, the feeding roller 21 releases the roll material, the heating component 23 heats the back of the roll material, and the main compaction roller 221 and the auxiliary compaction roller 224 of the first compaction component 22 then compact the roll material onto the horizontal ground.

[0041] Horizontal-vertical angle laying: The mobile platform 1 moves to the angle between the horizontal ground and the vertical wall. The second cylinder of the horizontal angle compaction mechanism 3 drives the right angle extrusion piece 32 to extend, extruding the roll material into the inside corner and compacting it.

[0042] Vertical and vertical angle laying: The moving platform 1 turns and moves along the vertical wall. The second compaction component 41 compacts the roll material to the wall under the pressure of the gas spring. When encountering a corner, the drive motor 421 of the corner compaction component 42 starts, driving the square frame 425 to complete a 90-degree right-angle movement, compacting the roll material to the outside corner.

[0043] Three-corner installation: For three-corner installation, the folding and compacting mechanism 51 first folds a roll of material into the required three-dimensional shape, and then the conveying mechanism 52 transports the folded roll of material to the top of the target corner. Finally, the gripping component 515 is released to complete the precise delivery and installation.

[0044] In summary, the roof waterproof membrane laying device of the present invention achieves laying and compaction from a plane to a vertical surface through the coordinated work of various mechanisms, and at the same time realizes all-round compaction operation from straight angles to three-dimensional corners, which significantly improves construction efficiency and laying quality, and reduces manual labor intensity and health risks.

[0045] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A roof waterproofing membrane laying device, characterized in that, include: Mobile platform (1), and horizontal laying mechanism (2), horizontal angle compaction mechanism (3), vertical angle laying mechanism (4) and folding conveyor assembly (5) installed on the mobile platform (1). The horizontal laying mechanism (2) includes a feeding roller (21) for placing and releasing the waterproof membrane and a first compaction assembly (22) for pressing the released membrane onto the horizontal surface. The horizontal angle compaction mechanism (3) includes a first driving member (31) and a right-angle extrusion member (32) connected to its driving end, which is used to extrude the waterproof membrane and press it tightly against the angle when the moving platform (1) travels to the angle between the horizontal plane and the vertical wall. The vertical angle laying mechanism (4) includes a second compaction component (41) for compacting the roll material onto the vertical wall surface and a corner compaction component (42) for compacting the roll material at a right angle at the corner. The folding conveyor assembly (5) includes a folding and compacting mechanism (51) for gripping and folding the roll material and a conveying mechanism (52) for conveying the folded roll material to a target location.

2. The roof waterproof membrane laying device according to claim 1, characterized in that, The first compaction assembly (22) includes a main compaction roller (221), which is mounted on the mobile platform (1) via a first slide rail lifting mechanism (222) and driven to lift by a first cylinder (223); secondary compaction rollers (224) are respectively provided on both sides of the main compaction roller (221); the first compaction assembly (22) is used to provide compaction pressure perpendicular to the horizontal plane when laying the roll material.

3. The roof waterproofing membrane laying device according to claim 1 or 2, characterized in that, The horizontal laying mechanism (2) also includes a heating component (23) located behind the feeding roller (21). The heating component (23) is mounted on the moving platform (1) via an elastic connector (24) to maintain contact with the laid roll material.

4. The roof waterproof membrane laying device according to claim 1, characterized in that, The first driving component (31) of the horizontal angle compaction mechanism (3) is a second cylinder. The angle between the extrusion surfaces of the right-angle extrusion component (32) is 90 degrees, and the angle between its ejection direction and the horizontal plane is set to 45 degrees, so that when the cylinder extends, its two extrusion surfaces are parallel to and in contact with the horizontal ground and the vertical wall respectively.

5. The roof waterproof membrane laying device according to claim 1, characterized in that, The second compaction assembly (41) includes a slider (411) that can slide toward a vertical wall and an elastic force-applying member (412) for applying pressure to the slider (411) to press it toward the vertical wall. The slider (411) is provided with a compaction roller (413) for contacting the waterproof membrane.

6. The roof waterproof membrane laying device according to claim 1, characterized in that, The corner compaction component (42) includes two mounting plates (420) arranged symmetrically at the top and bottom. A drive motor (421) is fixedly installed between the mounting plates (420). The output end of the drive motor (421) is connected to a gear transmission pair (422). The output end of the gear transmission pair (422) is connected to a rotating shaft (424). Cams (423) in the shape of curved triangles are provided at the upper and lower ends of the rotating shaft (424). A square frame (425) is provided on the mounting plate (420). The cams (423) are rotatably embedded in the square frame (425). The middle part of the adjacent right-angled sides of the inner side of the rectangular frame (425) is respectively hinged to a first connecting rod (426), and the outer end of the first connecting rod (426) is hinged to a second connecting rod (427). The end of the second connecting rod (427) is hinged to the mounting plate (420). A synchronizing rod (428) is also connected between the outer ends of the two first connecting rods (426). The cam (423) cooperates with the rectangular frame (425) so that under the drive of the drive motor (421), the rectangular frame (425) completes a right-angle movement from one wall to the adjacent vertical wall to compact the roll material at the corner.

7. The roof waterproof membrane laying device according to claim 1, characterized in that, The folding and compacting mechanism (51) includes a main board (511) with an isosceles right-angled triangle at the front end, side plates (513) connected to the right-angled sides of the main board (511) by hinges (512), a folding drive (514) for driving the side plates (513) to rotate relative to the main board (511), and a gripping assembly (515) for gripping the waterproof membrane placed below the main board (511); the side plates (513) are provided with a gripping drive (516) for driving the gripping action of the gripping assembly (515).

8. The roof waterproof membrane laying device according to claim 1, characterized in that, The conveying mechanism (52) includes a horizontal conveying unit and a vertical conveying unit. The horizontal conveying unit is used to drive the folding and compacting mechanism to move in the horizontal direction, and the vertical conveying unit is used to drive the folding and compacting mechanism (51) to move in the vertical direction.

9. The roof waterproof membrane laying device according to claim 8, characterized in that, The horizontal conveying unit includes a first drive motor (521) and a first synchronous belt mechanism (522) driven by the first drive motor. A first slider (523) is provided on the first synchronous belt mechanism (522), and the vertical conveying unit is installed on the first slider (523).

10. The roof waterproof membrane laying device according to claim 1, characterized in that, The vertical conveying unit includes a second drive motor (524) and a second synchronous belt mechanism (525) driven by the second drive motor (524). A second slider (526) is provided on the second synchronous belt mechanism (525). The folding and compacting mechanism (51) is fixedly connected to the second slider (526).

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