Hot melting equipment for waterproof coiled material

Abstract

The utility model discloses hot melting equipment for waterproof coiled materials, which comprises a support and a handheld spray gun fixed in the middle of the support and used for being inserted into a seam of two waterproof coiled materials, and a first connecting rod and a second connecting rod are respectively welded on two sides of the support. One side of the first connecting rod is provided with a pressing structure used for pressing the hot-melted waterproof coiled materials, and one side of the second connecting rod is provided with a separating plate capable of separating the two waterproof coiled materials and a mounting structure allowing the separating plate to adjust the inclination angle; according to the utility model, the separation plate is inserted into the lap joint in advance and is matched with the water absorption roller to wrap the water absorption cotton for wiping, and the fan and the air pipe provide cold air for blowing and drying, so that the lap joint is automatically and continuously cleaned and dried before hot melting, the potential quality hazards such as infirm hot melting and pseudo soldering caused by impurities or water vapor are eliminated, and the production efficiency is improved. And the welding reliability and the integrality of the waterproof layer are improved.

Description

Technical Field

[0001] This utility model relates to the field of hot-melt technology for waterproof membranes, specifically a hot-melt device for waterproof membranes. Background Technology

[0002] The overlapping edges between waterproof membranes need to be heat-fused. The upper and lower overlapping edges are simultaneously baked and melted, then rolled and fused together to form a continuous, seamless, integral waterproof layer.

[0003] Currently, waterproof membrane overlap is mostly done using a hot spray gun in conjunction with a pressure roller. A search revealed a patent with publication number CN115324339A that discloses a hot-melt device for waterproof membrane in civil construction, which includes a frame, a gas cylinder, a welding gun, wheels, a push handle, and a gas pipe. The frame includes a pair of combined frames with a front support roller and a rear support roller between them. The front support roller has a movable fork assembly that rotates around its axis. The end of the gun is tilted towards the front of the pressure roller. The welding gun includes a lighter and a valve. The push handle has a manual control assembly.

[0004] This waterproof membrane hot-melt equipment allows the waterproof membrane to pass between the rear support roller and the tension roller and be laid on the ground. Simultaneously, a manually operated component controls a welding gun to hot-melt the inner surface of the waterproof membrane, and a pressure roller compacts it, improving the quality of the hot-melt process. However, in addition to the rolling process, the pretreatment of the overlapping areas during the overlap of the waterproof membrane also affects the hot-melt quality. The hot-melt equipment in the aforementioned patent requires manual removal of water stains, impurities, and particles that may be present at the overlap edges during the laying process, before the hot-melt equipment can be used for hot-melt welding, making it inconvenient to use. Furthermore, when the waterproof membrane is laid on a roof, the large size of the equipment hinders operation. Utility Model Content

[0005] The purpose of this utility model is to provide a hot-melt device for waterproof membranes. By setting up a small handheld hot-melt device, it integrates hot-melt, pressing and joint pretreatment, thereby improving the ease of use of the device and the hot-melt quality of the overlapping edges.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hot-melt device for waterproof membrane, comprising a support frame and a handheld spray gun fixed in the middle of the support frame for inserting into the joint of two pieces of waterproof membrane. A first connecting rod and a second connecting rod are welded to both sides of the support frame. A pressing structure for pressing the hot-melted waterproof membrane is installed on one side of the first connecting rod. A separation plate capable of separating the two pieces of waterproof membrane and an installation structure for adjusting the tilt angle of the separation plate are provided on one side of the second connecting rod. A cleaning structure for air-drying and removing impurities from the joint of the two pieces of waterproof membrane is installed at the bottom of the separation plate.

[0007] Preferably, the cleaning structure includes a duct, a fan that blows cold air into the duct is installed on the top of the bracket, a baffle is installed at one end of the separation plate by screws, the baffle is located on one side of the duct, and a water-absorbing structure for wiping water stains at the joint of the two waterproof membranes is provided on the other side of the duct.

[0008] Preferably, the water-absorbing structure includes a water-absorbing roller with its outer wall covered with water-absorbing cotton, and a roller frame for the water-absorbing roller to roll is installed at the bottom of the separating plate.

[0009] Preferably, the separation plate is inclined relative to the support, and the end of the separation plate away from the wind deflector is provided with a chamfer.

[0010] Preferably, the clamping structure includes a clamping frame and a clamping roller rotatably connected within the clamping frame. One end of the first connecting rod is welded to a mounting plate, and an electric push rod for driving the clamping frame to move back and forth is installed inside the mounting plate. The telescopic end of the electric push rod is fixedly connected to the clamping frame, and the other end of the electric push rod is rotatably connected within the mounting plate.

[0011] Preferably, the mounting structure includes a threaded rod, one end of which is welded to the separation plate, and the other end of which is inserted into the second connecting rod and threadedly connected to the inner cavity of the second connecting rod.

[0012] Preferably, the mounting structure further includes a positioning bolt for positioning the threaded rod after rotation. The positioning bolt has its threads threaded through the outer wall of the second connecting rod and is threadedly connected to the second connecting rod. One end of the positioning bolt is pressed against the outer wall of the threaded rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses a pre-insertion of a separation plate into the lap joint, combined with a water-absorbing roller wrapped with absorbent cotton for wiping, and a fan and air duct to provide cold air for blowing and drying. This achieves automatic and continuous cleaning and drying pretreatment of the lap joint before heat fusion, eliminating quality hazards such as poor heat fusion and false welding caused by impurities or moisture, and improving the reliability of welding and the integrity of the waterproof layer.

[0015] 2. The entire device is designed to be handheld, integrating hot melting, pressing, and joint pretreatment. Its small size makes it particularly suitable for waterproof membrane overlapping operations in areas with limited space, such as rooftops, thus expanding the applicable scope and construction scenarios of hot melting equipment. Attached Figure Description

[0016] Figure 1 This is an isometric drawing of this utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the cleaning structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the bottom structure of the separation plate of this utility model;

[0020] Figure 5 This is a schematic diagram showing the positions of the pressure roller, handheld spray gun, water-absorbing roller, and air duct at the overlap of the waterproof membrane.

[0021] In the diagram: 1. Bracket; 2. Handheld spray gun; 3. First connecting rod; 4. Second connecting rod; 5. Pressing structure; 6. Separating plate; 7. Mounting structure; 8. Cleaning structure; 801. Air duct; 802. Fan; 803. Baffle plate; 804. Water suction structure; 8041. Water suction roller; 8042. Roller frame; 601. Chamfer; 501. Pressing frame; 502. Pressing roller; 503. Mounting plate; 504. Electric push rod; 701. Threaded rod; 702. Positioning bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a hot-melt device for waterproof membrane, including a bracket 1 and a handheld spray gun 2 fixed in the middle of the bracket 1 for inserting into the joint of two pieces of waterproof membrane. A first connecting rod 3 and a second connecting rod 4 are welded to both sides of the bracket 1. A pressing structure 5 for pressing the hot-melted waterproof membrane is installed on one side of the first connecting rod 3. A separation plate 6 for separating the two pieces of waterproof membrane and an installation structure 7 for adjusting the tilt angle of the separation plate 6 are provided on one side of the second connecting rod 4. A cleaning structure 8 for drying and removing impurities at the joint of the two pieces of waterproof membrane is installed at the bottom of the separation plate 6.

[0024] This handheld hot-melt equipment uses a separator plate 6 pre-inserted into the overlap of two waterproof membrane sheets. A cleaning structure 8 automatically cleans and dries the joint area. A handheld spray gun 2 simultaneously hot-melts the cleaned overlap edges. Finally, a pressing structure 5 compacts the molten membrane. The entire process continuously completes pretreatment, hot-melt, and compaction, eliminating impurities and improving welding quality. Specific operation details are described later.

[0025] The cleaning structure 8 includes a duct 801. A fan 802 is installed on the top of the bracket 1 to blow cold air into the duct 801. A wind baffle 803 is installed on one end of the separation plate 6 by screws. The wind baffle 803 is located on one side of the duct 801. A water-absorbing structure 804 for wiping water stains at the joint of the two waterproof membranes is provided on the other side of the duct 801.

[0026] Fan 802 delivers cool air to duct 801, and the airflow is blown towards the overlap seam through the outlet of duct 801. Both fan 802 and handheld spray gun 2 are readily available and commonly used equipment in existing technology. When using the handheld spray gun 2, an external gas source is required as the driving energy source. It is fixed in the middle of the bracket 1, and the spray gun flame is directly aimed at the overlap seam opened by the separation plate 6, simultaneously melting the overlap edge of the upper and lower layers of roll material to prepare for subsequent fusion. Baffle plate 803 is located on one side of duct 801 to constrain the airflow direction, causing it to concentrate on blowing the seam area, accelerating moisture evaporation and blowing away light impurities.

[0027] The water-absorbing structure 804 includes a water-absorbing roller 8041 with its outer wall covered with absorbent cotton, and a roller frame 8042 for the water-absorbing roller 8041 to roll is installed at the bottom of the separation plate 6. When the equipment moves, the water-absorbing roller 8041 rolls along the seam, using the absorbent cotton to absorb residual water stains and ensure that the hot-melt surface is clean.

[0028] The separation plate 6 is inclined relative to the bracket 1, and the end of the separation plate 6 away from the wind deflector 803 is provided with a chamfer 601.

[0029] By inserting a separator plate 6 into the overlap of two rolls of material, the gap is widened to facilitate subsequent cleaning and heat fusion. The chamfer 601 at the front end of the separator plate 6 reduces insertion resistance and avoids damage to the edges of the roll material.

[0030] The pressing structure 5 includes a pressing frame 501 and a pressing roller 502 rotatably connected within the pressing frame 501. One end of the first connecting rod 3 is welded to a mounting plate 503. An electric push rod 504 that drives the pressing frame 501 to move back and forth is installed inside the mounting plate 503. The telescopic end of the electric push rod 504 is fixedly connected to the pressing frame 501, and the other end of the electric push rod 504 is rotatably connected within the mounting plate 503.

[0031] The electric push rod 504 is mounted on the mounting plate 503 of the first connecting rod 3 to push the clamping frame 501 forward, applying pressure to the newly molten roll overlap edge to ensure that the two layers of roll are tightly bonded.

[0032] The mounting structure 7 includes a threaded rod 701, one end of which is welded to the separation plate 6, and the other end of which is inserted into the second connecting rod 4 and threadedly connected to the inner cavity of the second connecting rod 4.

[0033] The mounting structure 7 also includes a positioning bolt 702 for positioning the threaded rod 701 after rotation. The positioning bolt 702 is threaded through the outer wall of the second connecting rod 4 and is threadedly connected to the second connecting rod 4. One end of the positioning bolt 702 is pressed against the outer wall of the threaded rod 701 inserted into the first connecting rod 3.

[0034] The separating plate 6 is connected to the second connecting rod 4 via a threaded rod 701. Rotating the threaded rod 701 can adjust the insertion depth and tilt angle of the separating plate 6. After adjustment, the angle is fixed by tightening the outer wall of the threaded rod 701 with the positioning bolt 702 to prevent loosening during operation.

[0035] In use, grip the handheld spray gun 2 firmly, insert the separating plate 6 into the overlap seam of the two rolls of material, connect the handheld spray gun 2 to an external gas source as the driving energy, and aim the spray gun flame at the overlap seam opened by the separating plate 6, simultaneously melting the overlap edge of the upper and lower rolls of material to prepare for subsequent fusion. The pressure roller 502 is positioned as follows: Figure 5 At the position shown, the electric push rod 504 is activated, the pressure roller 502 inside the pressure frame 501 is pushed forward, and the electric push rod 504 is rotatably connected to the mounting plate 503 to apply pressure to the newly melted roll overlap edge to ensure that the two layers of roll are tightly bonded.

[0036] The handheld spray gun 2 moves to the next location for heat melting. While moving, the water-absorbing roller 8041 rolls along the seam to absorb residual water stains using absorbent cotton. By starting the fan 802, cold air is blown into the air duct 801 to blow impurities from the heat-melting surface away from the overlap and dry the water vapor, which is beneficial for subsequent melting.

[0037] It should be noted that when moving the equipment, in order to avoid interference between the pressing roller 502 and the direction of movement of the waterproof membrane, the entire equipment needs to be tilted slightly to the left when moving the equipment, so that the first connecting rod 3 is slightly raised and the pressing roller 502 is separated from the waterproof membrane. After the movement is completed, the equipment is tilted to the right so that the pressing roller 502 is in contact with the waterproof membrane. Since the equipment is handheld, during the hot melt operation, the movement and tilting action only requires turning the wrist and moving forward, which can be completed in an instant without affecting the fusion efficiency.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot-melt device for waterproof membrane, characterized in that: The device includes a bracket (1) and a handheld spray gun (2) fixed in the middle of the bracket (1) for inserting into the joint of two waterproof membranes. A first connecting rod (3) and a second connecting rod (4) are welded to both sides of the bracket (1). A pressing structure (5) for pressing the hot-melted waterproof membrane is installed on one side of the first connecting rod (3). A separation plate (6) for separating the two waterproof membranes and an installation structure (7) for adjusting the tilt angle of the separation plate (6) are provided on one side of the second connecting rod (4). A cleaning structure (8) for drying and removing impurities at the joint of the two waterproof membranes is installed at the bottom of the separation plate (6).

2. The hot-melt equipment for waterproof membrane according to claim 1, characterized in that: The cleaning structure (8) includes a duct (801), a fan (802) for blowing cold air into the duct (801) is installed on the top of the bracket (1), a baffle plate (803) is installed at one end of the separation plate (6) by screws, the baffle plate (803) is located on one side of the duct (801), and a water-absorbing structure (804) for wiping water stains at the joint of the two waterproof membranes is provided on the other side of the duct (801).

3. The hot-melt equipment for waterproof membrane according to claim 2, characterized in that: The water-absorbing structure (804) includes a water-absorbing roller (8041) with its outer wall covered with water-absorbing cotton, and a roller frame (8042) for the water-absorbing roller (8041) to roll is installed at the bottom of the separation plate (6).

4. The hot-melt equipment for waterproof membrane according to claim 3, characterized in that: The separation plate (6) is inclined relative to the bracket (1), and the end of the separation plate (6) away from the wind deflector (803) is provided with a chamfer (601).

5. The hot-melt equipment for waterproof membrane according to claim 4, characterized in that: The pressing structure (5) includes a pressing frame (501) and a pressing roller (502) rotatably connected in the pressing frame (501). One end of the first connecting rod (3) is welded to a mounting plate (503). An electric push rod (504) for driving the pressing frame (501) to push back and forth is installed in the mounting plate (503). The telescopic end of the electric push rod (504) is fixedly connected to the pressing frame (501), and the other end of the electric push rod (504) is rotatably connected in the mounting plate (503).

6. The hot-melt equipment for waterproof membrane according to claim 5, characterized in that: The mounting structure (7) includes a threaded rod (701), one end of which is welded to the separation plate (6), and the other end of which is inserted into the second connecting rod (4) and threadedly connected to the inner cavity of the second connecting rod (4).

7. The hot-melt equipment for waterproof membrane according to claim 6, characterized in that: The mounting structure (7) further includes a positioning bolt (702) for positioning the threaded rod (701) after rotation. The positioning bolt (702) is threaded through the outer wall of the second connecting rod (4) and threadedly connected to the second connecting rod (4). One end of the positioning bolt (702) is pressed against the outer wall of the threaded rod (701).

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