High-density polyethylene (HDPE) impermeable film sweat soldering device

Abstract

A hot melting welding device for an HDPE impermeable film comprises a base, the base is of a frame-shaped structure, a front supporting wheel is arranged outside the front end of the base, a rear supporting wheel extending towards the middle of the base is arranged at the rear end of the base, a lower clamping wheel is further arranged at the rear end of the base, a stand column is arranged on one side of the top face of the base, a fusion welding seat is arranged on the stand column, and a fusion welding block is arranged on the bottom face of the fusion welding seat. A clamping wheel seat is arranged at the position, close to the rear end of the base, of the fusion welding seat, and an upper clamping wheel is arranged on the clamping wheel seat; and the upper clamping wheel and the lower clamping wheel are arranged at the same vertical position and are used for clamping the HDPE impermeable film. By the adoption of the structure, the welding quality problem mentioned in the background technology can be solved, effective welding of the splicing position of the impermeable film is achieved, a double-welding-seam structure and a middle cavity are formed, and favorable conditions are provided for subsequent sealing performance detection.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-seepage membrane construction, in particular to a hot-melt welding device for a HDPE anti-seepage membrane. Background Art

[0002] In the construction of HDPE anti-seepage membrane, the overlapping parts of the membrane edges need to be connected by fusion welding. In the current welding work, there are problems with the sealing defects of the welding points due to the untimely splicing of the anti-seepage membrane after melting. At the same time, there are wrinkles and creases on the welding area after fusion welding, which leads to the decline in the construction quality of the anti-seepage membrane. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a HDPE anti-seepage membrane hot-melt welding device, which can solve the welding quality problem mentioned in the background technology, realize effective welding of the anti-seepage membrane splicing position, and form a double weld structure and an intermediate cavity, providing favorable conditions for subsequent sealing detection.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a hot-melt welding device for HDPE anti-seepage membrane, comprising a base, the base is a frame-shaped structure, a front support wheel is arranged outside the front end of the base, a rear support wheel extending to the middle of the base is arranged at the rear end of the base, an upper clamping wheel is arranged at the rear end of the base, a column is arranged on one side of the top surface of the base, a fusion welding seat is arranged on the column, a fusion welding block is arranged on the bottom surface of the fusion welding seat, a clamping wheel seat is arranged at a position of the fusion welding seat near the rear end of the base, and an upper clamping wheel is arranged on the clamping wheel seat;

[0005] The upper clamping wheel and the lower clamping wheel are arranged at the same vertical position and realize clamping of the HDPE anti-seepage membrane.

[0006] In a preferred solution, a connecting shaft is provided on one side of the welding seat, and the welding seat is movably connected to the column through the connecting shaft. A welding seat adjustment rod is provided on the top of the welding seat, and the welding seat adjustment rod is used to adjust the inclination angle of the welding seat.

[0007] In the preferred solution, a control box is also provided at the top of the front end of the base, and the control box is supported by a support block arranged on one end of the top surface of the front end of the base. An electric heating module for heating the thermal oil is provided in the control box, and an oil inlet pipe and an oil return pipe are also provided on the outer wall of the control box, and the oil inlet pipe and the oil return pipe are respectively connected to one side of the welding block.

[0008] In a preferred solution, a handheld push rod is provided on the top surface of the column, and the handheld push rod is used to push the device to move.

[0009] In a preferred embodiment, the welding block consists of two welding chambers, a connecting chamber is provided between the two welding chambers, the middle of the top surface of the welding chamber protrudes upward, and interfaces for connecting the oil inlet pipe and the oil return pipe are provided on the side walls of the two welding chambers.

[0010] In a preferred solution, a connecting rod is provided on one side of the welding block, and the connecting rod is used for connecting and fixing the welding block and the welding seat.

[0011] In a preferred solution, a cavity expansion sheet is further provided at one end of the connecting cavity, and the cavity expansion sheet extends into the groove between adjacent wheel bodies of the lower clamping wheel, and the cavity expansion sheet is used to expand the air cavity formed by welding.

[0012] In a preferred solution, a pressure wheel is further provided on the bottom surface of the fusion welding seat, and the pressure wheel is used to press the upper anti-seepage membrane onto the top surface of the fusion welding block.

[0013] In a preferred solution, a protective shell is installed on the periphery of the lower clamping wheel to prevent the lower clamping wheel from contacting the ground during operation of the equipment.

[0014] The utility model provides a HDPE anti-seepage membrane hot-melt welding device, which has the following beneficial effects by adopting the above structure:

[0015] (1) After the welding block heat-melts the bottom surface of the upper anti-seepage membrane, the upper and lower anti-seepage membranes are quickly welded by the upper and lower clamping wheels, which can avoid the sealing defects caused by untimely welding;

[0016] (2) The clamping force of the upper clamping wheel and the lower clamping wheel can be adjusted through the welding seat adjustment rod, and the welding block can be controlled to be close to the upper anti-seepage membrane to achieve efficient hot melting, which can improve the hot melting efficiency and welding quality;

[0017] (3) The double weld structure can form an intermediate cavity at the welding position for subsequent gas injection sealing detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model. (without control box)

[0020] Figure 2 This is the overall structural diagram of the utility model. (With control box)

[0021] Figure 3 This is a schematic diagram of the structure of the welding block of the utility model.

[0022] In the figure: base 1, front support wheel 2, rear support wheel 3, column 4, fusion welding seat 5, clamping wheel seat 6, upper clamping wheel 7, lower clamping wheel 8, protective shell 801, connecting shaft 9, fusion welding block 10, fusion welding seat adjustment rod 11, control box 12, support block 13, oil inlet pipe 14, oil return pipe 15, hand-held push rod 16, fusion welding chamber 17, connecting chamber 18, interface 19, connecting rod 20. DETAILED DESCRIPTION

[0023] like Figure 1-3 A hot-melt welding device for HDPE anti-seepage membrane includes a base 1, which is a frame-shaped structure, a front support wheel 2 is provided on the outside of the front end of the base 1, a rear support wheel 3 extending to the middle of the base 1 is provided at the rear end of the base 1, an upper clamping wheel 8 is provided at the rear end of the base 1, a column 4 is provided on one side of the top surface of the base 1, a fusion welding seat 5 is provided on the column 4, a fusion welding block 10 is provided on the bottom surface of the fusion welding seat 5, a clamping wheel seat 6 is provided at a position of the fusion welding seat 5 close to the rear end of the base 1, and an upper clamping wheel 7 is provided on the clamping wheel seat 6;

[0024] The upper clamping wheel 7 and the lower clamping wheel 8 are arranged at the same vertical position and realize clamping of the HDPE anti-seepage membrane.

[0025] In the preferred solution, a connecting shaft 9 is provided on one side of the welding seat 5, and the welding seat 5 is movably connected to the column 4 through the connecting shaft 9. A welding seat adjustment rod 11 is provided on the top of the welding seat 5, and the welding seat adjustment rod 11 is used to adjust the inclination angle of the welding seat 5.

[0026] In the preferred embodiment, a control box 12 is further provided at the top of the front end of the base 1, and the control box 12 is supported by a support block 13 provided on one end of the top surface of the front end of the base 1. An electric heating module for heating the thermal oil is provided in the control box 12, and an oil inlet pipe 14 and an oil return pipe 15 are further provided on the outer wall of the control box 12, and the oil inlet pipe 14 and the oil return pipe 15 are respectively connected to one side of the welding block 10.

[0027] In a preferred solution, a handheld push rod 16 is provided on the top surface of the column 4, and the handheld push rod 16 is used to push the device to move.

[0028] In a preferred embodiment, the welding block 10 is composed of two welding chambers 17, a connecting chamber 18 is provided between the two welding chambers 17, the middle part of the top surface of the welding chamber 17 protrudes upward, and an interface 19 for connecting the oil inlet pipe 14 and the oil return pipe 15 is provided on the side walls of the two welding chambers 17.

[0029] In a preferred solution, a connecting rod 20 is provided on one side of the welding block 10 , and the connecting rod 20 is used to connect and fix the welding block 10 and the welding seat 5 .

[0030] In a preferred embodiment, a cavity expansion sheet 21 is further provided at one end of the connecting cavity 18. The cavity expansion sheet 21 extends into the groove between adjacent wheel bodies of the lower clamping wheel 8. The cavity expansion sheet 21 is used to expand the air cavity formed by welding.

[0031] In a preferred solution, a pressure wheel 22 is further provided on the bottom surface of the fusion welding seat 5 , and the pressure wheel 22 is used to press the upper anti-seepage membrane onto the top surface of the fusion welding block 10 .

[0032] In a preferred solution, a protective shell 801 is installed on the periphery of the lower clamping wheel 8 to prevent the lower clamping wheel 8 from contacting the ground during the operation of the equipment.

[0033] The HDPE anti-seepage membrane hot-melt welding device disclosed in the present invention is used for welding the anti-seepage membrane splicing position:

[0034] The device is placed at the anti-seepage membrane splicing position, and the double-layer anti-seepage membrane is placed between the upper clamping wheel 7 and the lower clamping wheel 8. The lower anti-seepage membrane is clamped between the upper clamping wheel 7 and the lower clamping wheel 8 and then bypassed by the bottom of the device, while the upper anti-seepage membrane passes over the top of the fusion welding block 10. At this time, the bottom surface of the upper anti-seepage membrane is in contact with the top of the fusion welding block 10, and hot oil is circulated and injected into the fusion welding seat 5 and recovered through the control box 12. The bottom surface of the anti-seepage membrane is heat-melted through the raised part on the top of the fusion welding cavity 17. The device moves continuously along the seam, and the upper anti-seepage membrane after heat melting moves to between the upper clamping wheel 7 and the lower clamping wheel 8 and is heat-melted with the lower anti-seepage membrane.

[0035] In the above process, since there are two left and right fusion welding chambers, two welds are formed between the upper and lower anti-seepage membranes, and a cavity is formed between the two welds, which directly affects the subsequent airtightness detection.

Claims

1. A hot-melt welding device for a HDPE anti-seepage membrane, comprising a base (1), characterized in that: The base (1) is a frame-shaped structure, a front support wheel (2) is provided on the outside of the front end of the base (1), a rear support wheel (3) extending toward the middle of the base (1) is provided on the rear end of the base (1), an upper clamping wheel (8) is provided on the rear end of the base (1), a column (4) is provided on one side of the top surface of the base (1), a welding seat (5) is provided on the column (4), a welding block (10) is provided on the bottom surface of the welding seat (5), a clamping wheel seat (6) is provided on the welding seat (5) near the rear end of the base (1), and an upper clamping wheel (7) is provided on the clamping wheel seat (6); The upper clamping wheel (7) and the lower clamping wheel (8) are arranged at the same vertical position and realize clamping of the HDPE anti-seepage membrane.

2. A hot-melt welding device for HDPE anti-seepage membrane according to claim 1, characterized in that: A connecting shaft (9) is provided on one side of the welding seat (5), and the welding seat (5) is movably connected to the column (4) via the connecting shaft (9). A welding seat adjustment rod (11) is provided on the top of the welding seat (5), and the welding seat adjustment rod (11) is used to adjust the inclination angle of the welding seat (5).

3. A hot-melt welding device for HDPE anti-seepage membrane according to claim 1, characterized in that: A control box (12) is also provided at the top of the front end of the base (1). The control box (12) is supported by a support block (13) provided on one end of the top surface of the front end of the base (1). An electric heating module for heating the heat transfer oil is provided in the control box (12). An oil inlet pipe (14) and an oil return pipe (15) are also provided on the outer wall of the control box (12). The oil inlet pipe (14) and the oil return pipe (15) are respectively connected to one side of the welding block (10).

4. A hot-melt welding device for HDPE anti-seepage membrane according to claim 1, characterized in that: A hand-held push rod (16) is provided on the top surface of the upright column (4), and the hand-held push rod (16) is used to push the device to move.

5. A hot-melt welding device for HDPE anti-seepage membrane according to claim 1, characterized in that: The welding block (10) is composed of two welding chambers (17), a connecting chamber (18) is provided between the two welding chambers (17), the middle portion of the top surface of the welding chamber (17) is convex upwards, and interfaces (19) for connecting the oil inlet pipe (14) and the oil return pipe (15) are provided on the side walls of the two welding chambers (17).

6. A hot-melt welding device for HDPE anti-seepage membrane according to claim 1, characterized in that: A connecting rod (20) is provided on one side of the welding block (10), and the connecting rod (20) is used to connect and fix the welding block (10) and the welding seat (5).

7. A hot-melt welding device for HDPE anti-seepage membrane according to claim 5, characterized in that: A cavity expansion sheet (21) is also provided at one end of the connecting cavity (18). The cavity expansion sheet (21) extends into a groove between adjacent wheel bodies of the lower clamping wheel (8). The cavity expansion sheet (21) is used to expand the air cavity formed by welding.

8. A hot-melt welding device for HDPE anti-seepage membrane according to claim 1, characterized in that: A pressing wheel (22) is also provided on the bottom surface of the fusion welding seat (5), and the pressing wheel (22) is used to press the upper anti-seepage membrane onto the top surface of the fusion welding block (10).

9. A hot-melt welding device for HDPE anti-seepage membrane according to claim 1, characterized in that: A protective shell (801) is installed on the periphery of the lower clamping wheel (8) to prevent the lower clamping wheel (8) from contacting the ground during operation of the equipment.

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