Sewing method for seaming geomembrane on building protective net

Abstract

The invention relates to a sewing method for sewing geomembranes on a building protective net. The geomembrane is fed into a folded edge after being folded through the edge folding device, meanwhile, the tensioning degree of the building protective net at the sewing device is monitored in real time through the monitoring tensioning device, and when the building protective net is too tight, a signal is transmitted to the first tensioning device to drive the first tensioning device to loosen the building protective net; therefore, the tensioning effect of the building protective net is adjusted, and the needle head is prevented from being broken; when the tensioning degree of the building protective net is large, the building protective net drives the driven tensioning roller to move upwards, when the sensor detects the sliding block, a signal is transmitted to the first tensioning device, the power device drives the driving tensioning roller to ascend, and therefore the function of loosening the building protective net is achieved, and tensioning of the building protective net passing through the sewing device is achieved.

Description

Technical Field

[0001] The invention relates to the field of building protection net production, in particular to the technical field of sewing geomembranes on building protection nets, and specifically refers to a sewing method for sewing geomembranes on building protection nets. Background Art

[0002] The building protection net is a net used for protection during construction. When processing the building protection net, it is necessary to process the folded edge at the edge and put it into the folded edge. After folding once, the geomembrane should be placed so that the folded edge and the opening of the geomembrane are facing inward, and then the geotextile rope is put into the geomembrane. Then, the sewing device is used to sew the building protection net and the geomembrane together, and the geotextile rope is squeezed into the geomembrane through the sewing thread.

[0003] At present, in the production process, how to fold the geomembrane and feed it into the folded edge, while ensuring that the opening of the folded geomembrane and the folded edge opening are facing inward. Since the needle of the sewing device will break when it is subjected to excessive force, how to ensure the tension of the building protection net has also become a difficulty in this production. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a sewing system for sewing geomembranes of building protection nets, which enables the geomembrane to be folded and then fed into the folded edges, while simultaneously monitoring the tension of the building protection net at the sewing device in real time to avoid needle breakage.

[0005] The present invention is realized by the following technical scheme, a method for sewing a geomembrane on a building protection net, comprising the following steps: a. The building protection net unwound from the unwinding roller passes through the first tensioning device and the folding device in sequence and then enters the sewing device; b. The folding guide device between the folding device and the sewing device folds the geomembrane located directly above the building geomembrane and sends it into the folded edge of the building protection net. The guide rope tube sends the geotextile rope into the angle after the geomembrane is folded; c. After being sewn by the sewing device, the geonet bypasses the passive tensioning roller of the monitoring tensioning device and continues to be transmitted and wound out from it. The monitoring device is electrically connected to the first tensioning device. The monitoring tensioning device monitors the tensioning degree of the building protection net by monitoring the height of the passive tensioning roller, and adjusts the tensioning degree of the building protection net passing through the sewing device by tensioning the geonet by the first tensioning device, thereby protecting the needle in the sewing needle device.

[0006] When the present invention is in use, the geomembrane is folded and then fed into the folded edge through the folding device, and the tensioning degree of the building protection net at the sewing device is monitored in real time through the monitoring tensioning device. When the building protection net is too tight, the signal is transmitted to the first tensioning device, driving the first tensioning device to loosen the building protection net, thereby adjusting the tension of the building protection net, thereby avoiding needle breakage.

[0007] Preferably, the first tensioning device includes an active tensioning roller sliding along the vertical direction, and a power device driving the active tensioning roller to slide, and the monitoring tensioning device includes a passive tensioning roller arranged to slide along the vertical direction, and a monitoring structure for monitoring the height position of the passive tensioning roller.

[0008] This preferred solution uses a power device to drive the active tensioning roller to move in the height direction, thereby achieving the tensioning of the building protection net. The height of the passive tensioning roller is monitored in real time by the monitoring structure, so that the tensioning degree of the building protection net can be judged by the height of the passive tensioning roller.

[0009] Preferably, the monitoring tensioning device includes a slider connected to the passive tensioning roller, and a slide rod for the slider to slide up and down, and the monitoring structure includes a monitoring plate located on the side of the slider, and the monitoring plate is provided with two sensors arranged along the height direction.

[0010] When this preferred solution is in use, when the tension of the building protection net is high, the building protection net drives the passive tensioning roller to move upward. When the sensor detects the slider, it transmits a signal to the first tensioning device, and the power device drives the active tensioning roller to rise, thereby loosening the building protection net, thereby achieving the tensioning of the building protection net passing through the sewing device.

[0011] Preferably, a first conveying device for conveying the building protection net is provided between the first tensioning device and the unwinding roller, a second tensioning device is provided behind the monitoring tensioning device, and a second conveying device is provided between the second tensioning device and the monitoring tensioning device.

[0012] This preferred solution facilitates the transmission of the building protection net by providing the first transmission device and the second transmission device, and provides a tensioning effect on the building protection net by providing the second tensioning device.

[0013] Preferably, the second tensioning device comprises a feed roller, a lower tensioning roller, and a discharge roller for the building protection net to pass around in sequence, the lower tensioning roller is connected to a tensioning plate located below the feed roller, the tensioning plate is connected to a tensioning frame through a tensioning shaft, and the tensioning frame is also provided with a driving device for driving the tensioning plate to rotate up and down, the lower tensioning roller is located between the feed roller and the discharge roller and behind the feed roller.

[0014] The preferred solution drives the rotation of the tensioning plate through the driving device, thereby driving the lower tensioning roller to rotate up and down, replacing the up and down sliding form with the rotation form, so that the building protection net is more smoothly tensioned, and at the same time reduces the range of motion of the lower tensioning roller closest to the feed roller, reduces the tension on the part of the building protection net between the guide roller and the feed roller, and plays a role in protecting the building protection net Preferably, the tensioning plate is axially connected to several lower tensioning rollers arranged along the conveying direction of the building protection net, and an upper tensioning roller located above the lower tensioning rollers and axially connected to the tensioning frame is provided between two adjacent lower tensioning rollers. The building protection net sequentially passes around the lower tensioning rollers and the upper tensioning rollers along the conveying direction, and the tensioning shaft is located in front of the lower tensioning roller.

[0015] This preferred solution facilitates increasing the tensioning length of the building protection net by arranging a lower tensioning roller and an upper tensioning roller.

[0016] Preferably, the folding guide device includes a groove plate with a groove on the side, the groove depth of the groove gradually decreases along the geomembrane conveying direction, the groove includes a first groove section and a second groove section connected in sequence along the geomembrane conveying direction, the groove widths of the first groove section and the second groove section are both conical, the first groove section and the second groove section are connected at the maximum groove width, and the first groove section is also provided with a guide plate connecting the side wall and the top wall, the side wall and the bottom wall and adapted to the shape of the groove, and a channel for the geomembrane to pass through is formed between the guide plate and the groove.

[0017] When this preferred solution is in use, the trough plate is placed above the building protection net, and the opening of the groove is facing the folded edge of the building protection net, and the second trough section is inserted into the folded edge, and the geomembrane is inserted into the first trough section. Under the guidance of the channel, the geomembrane becomes flat in the top view direction, and then enters the second trough section. When it reaches the second trough section away from the first trough section, the upper flange of the geomembrane is folded upward and then conveyed along the conveying direction of the building protection net, and the lower flange of the geomembrane is folded downward and then conveyed along the conveying direction of the building protection net, thereby realizing that the geomembrane is folded and inserted into the folded edge, so that the geomembrane can be folded during the conveying process and the folded geomembrane is guided into the folded edge, thereby improving production efficiency.

[0018] Preferably, a V-shaped fixed plate with an opening toward the trough plate is further provided behind the trough plate for conveying, the second trough section is located in the V-shaped fixed plate, and the top plate and the bottom plate of the fixed plate are respectively fixedly connected to the top wall and the bottom wall of the second trough section.

[0019] This preferred solution provides a guiding effect during the transportation of the geomembrane by setting a fixed plate.

[0020] As a preferred embodiment, a rope guide tube located behind the groove plate is also fixedly connected in the V-shaped fixing plate, and a geotextile rope is arranged in the rope guide tube. This preferred solution is convenient for burying the geotextile rope in the folded edge.

[0021] Preferably, the first tensioning device is located below the sewing device, a first steering roller group is provided between the first tensioning device and the sewing device, a second steering roller is provided above the monitoring tensioning device, and the monitoring tensioning device is located in front of the sewing device. This preferred solution facilitates reasonable use of space by setting the position of the first tensioning device.

[0022] The beneficial effects of the present invention are as follows: the geomembrane is folded and fed into the folded edge through the folding device, and the tensioning degree of the building protection net at the sewing device is monitored in real time through the monitoring tensioning device. When the building protection net is too tight, the signal is transmitted to the first tensioning device, and the first tensioning device is driven to loosen the building protection net, thereby adjusting the tension of the building protection net, thereby avoiding needle breakage; when the tension of the building protection net is large, the building protection net drives the passive tensioning roller to move upward, and when the sensor detects the slider, the signal is transmitted to the first tensioning device, and the power device drives the active tensioning roller to rise, thereby loosening the building protection net, thereby achieving the tension of the building protection net passing through the sewing device. Tighten; place the trough plate above the building protection net, and make the opening of the groove face the folded edge of the building protection net, and insert the second trough section into the folded edge, and insert the geomembrane into the first trough section. Under the guidance of the channel, the geomembrane becomes flat in the top view direction, and then enters the second trough section. When it reaches the second trough section away from the first trough section, the upper flange of the geomembrane is folded upward and then transmitted along the conveying direction of the building protection net, and the lower flange of the geomembrane is folded downward and then transmitted along the conveying direction of the building protection net, thereby realizing that the geomembrane is folded and inserted into the folded edge, so that the geomembrane can be folded during the transmission process, and the folded geomembrane is guided into the folded edge, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 A schematic top view of the folding guide device when in use; Figure 3 It is a three-dimensional schematic diagram of the slot plate; Figure 4 It is a three-dimensional schematic diagram of the slot plate from another angle; Figure 5 It is the three-view drawing of the slot plate; Figure 6 is a top view schematic diagram of the folding device; Figure 7 This is a schematic diagram of the building protection net and geomembrane after being sewn together; Figure 8 It is a schematic diagram of the conveyance of the geomembrane under the guidance of the folding guide device; As shown in the figure: 1. First conveying device, 2. Second tensioning device, 3. Folding guide device, 4. Second conveying device, 5. Unwinding roller, 7. Folding device, 8. Geonet, 9. Geomembrane, 10. Geotextile rope, 11. Active tensioning roller, 12. Passive tensioning roller, 13. Sewing device, 14. Monitoring structure, 21. Feeding roller, 22. Discharging roller, 23. Upper tensioning roller, 24. Lower tensioning roller, 25. Tensioning plate, 26. Tensioning shaft, 27 , driving device, 31, groove plate, 32, guide rope tube, 33, fixing plate, 34, connecting plate, 35, middle plate, 36, adjusting plate, 37, adjusting long hole, 38, connecting long hole, 311, first groove section, 312, second groove section, 313, side wall, 314, top wall, 315, bottom wall, 316, guide plate, 44, horizontal plate, 45, second long hole, 46, bending hole, 47, support rod, 48, bending plate, 49, vertical plate. DETAILED DESCRIPTION

[0024] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0025] Refer to the attached Figure 1-7 The present invention discloses a seam edge system for sewing geomembranes of building protection nets, comprising a first conveying device 1, a first tensioning device, a first steering roller group, a sewing device 13, a monitoring tensioning device, a second steering roller, a second conveying device 4, and a second tensioning device 2 for the building protection net to sequentially bypass or pass through.

[0026] The building protection net is unwound from the unwinding roller 5 located in front of the first conveying device 1, and a folding guide device 3 is provided between the first direction adjustment roller group and the sewing device 13 to fold the geomembrane and send it into the folded edge of the building protection net.

[0027] The first steering roller group includes two first steering rollers arranged along the height direction, and a folding guide device for folding the building protection net is also provided between the two first steering rollers.

[0028] The first tensioning device is located below the sewing device 13, a first steering roller group is provided between the first tensioning device and the sewing device 13, a second steering roller is provided above the monitoring tensioning device, the monitoring tensioning device is located in front of the sewing device 13 and the first tensioning device, and the sewing device and the first tensioning device are both located in front of the first steering roller group.

[0029] The first conveying device 1 includes a driving roller located below the building protection net and a driving wheel located directly above the driving roller. The building protection net passes between the driving roller and the driving wheel. A motor for driving the driving roller to rotate is provided on the bracket of the system. The second driving device 27 has the same structure as the first driving device 27.

[0030] The first tensioning device includes an active tensioning roller 11 that slides vertically on a bracket, and a power device that drives the active tensioning roller 11 to slide. The power device includes a cylinder that extends in the height direction, and the protruding end of the cylinder is connected to a slide plate. The slide plate is slidably connected to the bracket, and the active tensioning roller 11 is axially connected to the slide plate.

[0031] The monitoring tensioning device includes a passive tensioning roller 12 arranged to slide vertically, and a monitoring structure 14 for monitoring the height position of the passive tensioning roller 12. The monitoring tensioning device includes a slider axially connected to the passive tensioning roller 12, and a slide bar for the slider to slide up and down, and the monitoring structure 14 includes a monitoring plate located on the side of the slider, and two sensors arranged in the height direction are provided on the monitoring plate.

[0032] The second tensioning device 2 includes a tensioning frame located behind the guide roller, on which a feed roller 21 and a discharge roller 22 are axially connected. The tensioning frame is also axially connected to a tensioning plate 25 located below the feed roller 21 through a tensioning shaft 26. Two tensioning plates 25 are provided, and the two tensioning plates 25 are arranged along the axial direction of the feed roller 21.

[0033] The two tensioning plates 25 are connected to the upper shafts with three lower tensioning rollers 24 arranged along the conveying direction of the building protection net, that is, from front to back. The tensioning shaft 26 is located in front of the lower tensioning rollers 24, and the distance between two adjacent lower tensioning rollers 24 is the same. An upper tensioning roller 23 located above the lower tensioning roller 24 and axially connected to the tensioning frame is provided between two adjacent lower tensioning rollers 24. The building protection net passes around the lower tensioning rollers 24 and the upper tensioning rollers 23 in sequence along the conveying direction. The feed roller 21 is located in front of the lower tensioning roller 24. Therefore, among the three lower tensioning rollers 24, the lower tensioning roller 24 located at the front is closest to the feed roller 21 and the tensioning shaft 26.

[0034] The tensioning frame is also provided with a driving device 27 for driving the tensioning plate 25 to rotate up and down. The driving device 27 includes a cylinder arranged corresponding to the tensioning plate 25. One end of the cylinder is hinged to the tensioning frame, and the other end is hinged to the tensioning plate 25.

[0035] The folding guide device 3 includes a groove plate 31 with a groove on the side, the groove depth of the groove gradually decreases along the geomembrane conveying direction, the groove includes a first groove section 311 and a second groove section 312 connected in sequence along the geomembrane conveying direction, the groove widths of the first groove section 311 and the second groove section 312 are both conical, the first groove section 311 and the second groove section 312 are connected at the maximum groove width, and the first groove section 311 is also provided with a guide plate 316 connecting the side wall 313 and the top wall 314, the side wall 313 and the bottom wall 315 and adapted to the shape of the groove, and a channel for the geomembrane to pass through is formed between the guide plate 316 and the groove. A V-shaped fixing plate 33 with an opening facing the groove plate 31 is further provided at the rear of the groove plate 31. The second groove section 312 is located in the V-shaped fixing plate 33. The top plate and the bottom plate of the fixing plate 33 are respectively fixed to the top wall 314 and the bottom wall 315 of the second groove section 312. The V-shaped fixing plate 33 is also fixedly connected to a rope guide tube 32 located behind the groove plate 31 , and a geotextile rope 10 is arranged in the rope guide tube 32 .

[0036] The edge of the top plate is flush with the edge of the top wall 314 of the second slot section 312 away from the side wall 313 , and the edge of the bottom plate is flush with the edge of the bottom wall 315 of the second slot section 312 away from the side wall 313 .

[0037] The bracket is connected to the fixed plate 33 through an adjustment structure, and the adjustment structure includes an adjustment plate 36, an intermediate plate 35 connecting the adjustment plate 36 and the connecting plate 34, and the connecting plate 34 is fixedly connected to the fixed plate 33. The adjustment plate 36 is provided with an adjustment long hole 37 for adjusting the position of the fixed plate 33 along the conveying direction of the building protection net, and the adjustment long hole 37 is penetrated with an adjustment bolt threadedly connected to the bracket. The connecting plate 34 is provided with a connecting long hole 38 for adjusting the position of the fixed plate 33 along the width direction of the building protection net, and the connecting long hole 38 is penetrated with a connection threadedly connected to the intermediate plate 35.

[0038] The folding device 7 includes a bending plate 48, a support rod 47 fixed to the bending plate 48 and supporting the building protection net, and an adjustment structure connecting the bending plate 48 and the bracket. The bending plate 48 is provided with a V-shaped bending hole 46 for the building protection net to pass through. The side of the bending plate 48 connected to the support rod 47 is the first side of the bending plate 48, and the bending hole 46 includes a first perforation extending axially along the support rod 47, and a second perforation arranged obliquely, the first perforation extends to the first side, and the second perforation is located directly below the first perforation, and the second perforation extends obliquely upward and away from the first side. An end of the second perforation away from the first side is connected to an end of the first perforation away from the inner side, thereby forming a V-shape. The inner opening of the bending hole 46 is the connection port between the first perforation and the first side, and its height is flush with the top surface of the support rod 47. The inner angle of the bending hole 46 is the angle between the first perforation and the second perforation, which determines the bending angle of the folded edge of the building protection net.

[0039] The adjustment structure includes a horizontal plate 44 with a first long hole, the horizontal plate 44 is bolted to the bracket, a vertical plate 49 is fixed to the horizontal plate 44, the vertical plate 49 is provided with threaded holes arranged in the front-to-back direction and penetrating the vertical plate 49 in the height direction, the bent plate 48 is provided with a second long hole 45 extending in the front-to-back direction, and a bolt threadedly connected to the threaded hole is passed through the second long hole 45.

[0040] In this solution, the suturing device is prior art.

[0041] A method for using a seam edge system for sewing geomembranes of building protection nets, comprising the following steps: a. The building protection net is unwound from the unwinding roller 5, and the top surface of the building protection net is located above the bottom surface; b. After the building protection net is conveyed from front to back by the first conveying device 1, it bypasses the active tensioning roller 11 and moves upward under the guidance of a first direction-adjusting roller. Under the guidance of the folding device 7, the edge of the building protection net is bent inward and backward. After bypassing another first direction-adjusting roller, the building protection net is conveyed backward. At this time, the top surface of the building protection net is located below the bottom surface, and the folded edge is turned to the top; c. The geomembrane is located above and on the inner side of the building protection net. The groove plate 31 is placed above the building protection net, and the opening of the groove is facing the folded edge of the building protection net. At this time, a certain inclination angle is formed between the groove and the folded edge. At the same time, the second groove section 312 is inserted into the folded edge, and the geomembrane is inserted into the first groove section 311. Under the guidance of the channel, the geomembrane becomes flat in the top view direction, and then enters the second groove section 312. When the second groove section 312 is far away from the first groove section 311, the upper flange of the geomembrane is folded upward and then transmitted along the conveying direction of the building protection net, and the lower flange of the geomembrane is folded downward and then transmitted along the conveying direction of the building protection net, that is, backward transmission. At the same time, the geotextile rope 10 enters the bend of the geomembrane along the rope guide tube 32; d. The building protection net, geomembrane and geostring 10 are put into the sewing device 13 for sewing; e. Then, the monitoring tensioning device is entered, and the height of the passive tensioning roller 12 is monitored in real time by the monitoring structure 14, and the tensioning degree of the building protection net passing through the sewing device 13 is achieved by adjusting the height of the active tensioning roller 11, so as to avoid the needle of the sewing device 13 from breaking; f. Then it goes around the second adjusting roller and moves backwards, at which time the folded edge is located at the bottom, and the top surface of the building protection net is located above the bottom surface, and then passes through the second conveying device 4 and enters the second tensioning device 2; g. In the second tensioning device 2, the tensioning plate 25 is driven to rotate by the driving device 27, thereby driving the lower tensioning roller 24 to rotate up and down, replacing the up and down sliding form with the rotation form, so that the tensioning of the building protection net is smoother, and at the same time, the movable range of the lower tensioning roller 24 closest to the feed roller 21 is reduced, and the tension on the part of the building protection net between the guide roller and the feed roller 21 is reduced, thereby protecting the building protection net.

[0042] Of course, the above description is not limited to the above examples. Technical features not described in the present invention can be achieved by or by using existing technologies, which will not be described here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention, and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A method for sewing geomembranes on building protection nets, characterized in that: The following steps are involved: a. The building protection net unwound from the unwinding roller (5) passes through the first tensioning device and the folding device (7) in sequence and then enters the sewing device (13); b. The folding guide device (3) between the folding device (7) and the sewing device (13) folds the geomembrane located directly above the building geomembrane and feeds it into the folded edge of the building protection net, and the guide rope tube (32) feeds the geotextile rope (10) into the angle after the geomembrane is folded; c. After being sewn by the sewing device (13), the geonet bypasses the passive tensioning roller (12) of the monitoring tensioning device and continues to be transmitted and is wound out from it. The monitoring device is electrically connected to the first tensioning device. The monitoring tensioning device monitors the tensioning degree of the geonet by monitoring the height of the passive tensioning roller (12). The tensioning degree of the geonet passing through the sewing device (13) is adjusted by the first tensioning device through the tensioning of the geonet, thereby protecting the needle in the sewing needle device.

2. The method for sewing geomembranes on building protection nets according to claim 1, characterized in that: The first tensioning device comprises an active tensioning roller (11) that slides vertically, and a power device that drives the active tensioning roller (11) to slide, and the monitoring tensioning device comprises a passive tensioning roller (12) that is arranged to slide vertically, and a monitoring structure (14) that monitors the height position of the passive tensioning roller (12).

3. The seam edge system for sewing geomembrane of building protection net according to claim 2 is characterized by: The monitoring tensioning device comprises a slider axially connected to the passive tensioning roller (12), and a slide rod for the slider to slide up and down, and the monitoring structure (14) comprises a monitoring plate located on the side of the slider, and two sensors arranged in the height direction are provided on the monitoring plate.

4. The seam edge system for sewing geomembrane of building protection net according to claim 1, characterized in that: A first conveying device (1) for conveying the building protection net is provided between the first tensioning device and the unwinding roller (5), a second tensioning device (2) is provided behind the monitoring tensioning device, and a second conveying device (4) is provided between the second tensioning device (2) and the monitoring tensioning device.

5. The seam edge system for sewing geomembrane of building protection net according to claim 4 is characterized by: The second tensioning device (2) comprises a feed roller (21), a lower tensioning roller (24), and a discharge roller (22) for the building protection net to pass around in sequence. The lower tensioning roller (24) is axially connected to a tensioning plate (25) located below the feed roller (21). The tensioning plate (25) is axially connected to a tensioning frame via a tensioning shaft (26). The tensioning frame is also provided with a driving device (27) for driving the tensioning plate (25) to rotate up and down. The lower tensioning roller (24) is located between the feed roller (21) and the discharge roller (22) and behind the feed roller (21).

6. The seam edge system for sewing geomembrane of building protection net according to claim 5, characterized in that: The tensioning plate (25) is axially connected to a plurality of lower tensioning rollers (24) arranged along the conveying direction of the building protection net; an upper tensioning roller (23) located above the lower tensioning rollers (24) and axially connected to the tensioning frame is provided between two adjacent lower tensioning rollers (24); the building protection net passes around the lower tensioning rollers (24) and the upper tensioning rollers (23) in sequence along the conveying direction; the tensioning shaft (26) is located in front of the lower tensioning rollers (24).

7. The seam edge system for sewing geomembrane of building protection net according to claim 1, characterized in that: The folding guide device (3) comprises a groove plate (31) with a groove on the side, the groove depth of the groove gradually decreases along the conveying direction of the geomembrane, the groove comprises a first groove section (311) and a second groove section (312) connected in sequence along the conveying direction of the geomembrane, the groove widths of the first groove section (311) and the second groove section (312) are both conical, the first groove section (311) and the second groove section (312) are connected at the maximum groove width, and the first groove section (311) is further provided with a guide plate (316) connecting the side wall (313) and the top wall (314), the side wall (313) and the bottom wall (315) and matching the shape of the groove, and a channel for the geomembrane to pass through is formed between the guide plate (316) and the groove.

8. The seam edge system for sewing geomembrane of building protection net according to claim 7, characterized in that: A V-shaped fixing plate (33) with an opening facing the slot plate (31) is further provided at the rear of the slot plate (31) for conveying, the second slot section (312) being located inside the V-shaped fixing plate (33), and the top plate and the bottom plate of the fixing plate (33) being fixedly connected to the top wall (314) and the bottom wall (315) of the second slot section (312) respectively.

9. The folding guide device (3) for the inner geomembrane according to claim 2, characterized in that: A rope guide tube (32) located behind the groove plate (31) is also fixedly connected to the V-shaped fixing plate (33), and a geotextile rope (10) is arranged in the rope guide tube (32).

10. The seam edge system for sewing geomembrane of building protection net according to claim 1, characterized in that: The first tensioning device is located below the sewing device (13), a first steering roller group is provided between the first tensioning device and the sewing device (13), a second steering roller is provided above the monitoring tensioning device, and the monitoring tensioning device is located in front of the sewing device (13).

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