Edge seaming system for seaming geomembrane on building protective net

Abstract

The utility model relates to a hemming system for seaming a geomembrane on a building protective net, which comprises a first tensioning device, a sewing device and a monitoring tensioning device for the building protective net to enter in sequence, and an edge folding device for folding the edge of the building protective net is further arranged between the first tensioning device and the sewing device. A folding guide device for folding the geomembrane and then feeding the geomembrane into the folded edge of the building protective net is further arranged between the edge folding device and the sewing device, and the monitoring tensioning device is electrically connected with the first tensioning device. When the folding device is used, a geomembrane is folded through the folding device and then fed into a folded edge, 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.

Description

Technical Field

[0001] The utility model relates to the field of building protection nets, in particular to a seaming system for sewing geomembranes of 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 the geomembrane into the folded edge. After folding once, make the folded edge and the opening of the geomembrane face inward, and then put the geotextile rope into the geomembrane. Then use the sewing device to sew the building protection net and the geomembrane together, and at the same time squeeze the geotextile rope 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. Utility Model Content

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

[0005] The present utility model is realized through the following technical scheme: a sewing system for sewing geomembranes of building protection nets, comprising a first tensioning device, a sewing device, and a monitoring tensioning device for sequentially entering the building protection net; a folding device for folding the edges of the building protection net is further provided between the first tensioning device and the sewing device; a folding guide device for folding the geomembrane and sending it into the folded edge of the building protection net is further provided between the folding device and the sewing device; the monitoring tensioning device is electrically connected to the first tensioning device.

[0006] When the utility model 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, 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.

[0007] Preferably, the first tensioning device includes an active tensioning roller sliding in 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 in 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, and the tensioning degree of the building protection net is 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. The monitoring structure includes a monitoring plate located on the side of the slider, and two sensors arranged along the height direction are provided on the monitoring plate.

[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 the 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 the building protection net with a tensioning effect by providing the second tensioning device.

[0013] Preferably, the second tensioning device includes 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 the tensioning plate below the feed roller. The tensioning plate is connected to the tensioning frame through the tensioning shaft. 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] This 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, making the building protection net more gentle when tensioned, while reducing the range of movement of the lower tensioning roller closest to the feed roller, reducing the tension on the part of the building protection net between the guide roller and the feed roller, and playing a role in protecting the building protection net

[0015] 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 roller and axially connected to the tensioning frame is provided between two adjacent lower tensioning rollers. The building protection net passes around the lower tensioning rollers and the upper tensioning rollers in sequence along the conveying direction, and the tensioning shaft is located in front of the lower tensioning roller.

[0016] This preferred solution facilitates increasing the tensioning length of the building protection net by arranging the lower tensioning roller and the upper tensioning roller.

[0017] 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.

[0018] When using this preferred solution, 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 the geomembrane being folded and inserted into the folded edge, thereby completing the folding of the geomembrane during the conveying process and guiding the folded geomembrane into the folded edge, thereby improving production efficiency.

[0019] Preferably, a V-shaped fixed plate with an opening toward the trough plate is further provided at the rear of the trough plate for conveying, the second trough section is located in the V-shaped fixed plate, and the top plate and bottom plate of the fixed plate are respectively fixed to the top wall and bottom wall of the second trough section.

[0020] This preferred solution provides a guide function during the transportation of the geomembrane by setting a fixed plate.

[0021] As preferred, the V-shaped fixing plate is further fixed with a rope guide tube located behind the groove plate, wherein the rope guide tube is provided with a geotextile rope. This preferred solution facilitates the geotextile rope to be buried in the folded edge.

[0022] 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.

[0023] This preferred solution facilitates rational use of space by setting the position of the first tensioning device.

[0024] 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 effect of loosening the building protection net passing through the sewing device. Tensioning; placing the trough plate above the building protection net, with the opening of the groove facing the folded edge of the building protection net, and inserting the second trough section into the folded edge, and inserting 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 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 the geomembrane being folded and inserted into the folded edge, thereby completing the folding of the geomembrane during the conveying process, and guiding the folded geomembrane into the folded edge, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a top view schematic diagram of the folding guide device when in use;

[0027] Figure 3 It is a three-dimensional schematic diagram of the slot plate;

[0028] Figure 4 It is a three-dimensional schematic diagram of the groove plate from another angle;

[0029] Figure 5 This is the three-view drawing of the slot plate;

[0030] Figure 6 is a top view schematic diagram of the folding device;

[0031] Figure 7 This is a schematic diagram of the building protection net and geomembrane after being sewn together;

[0032] Figure 8 This is a schematic diagram of the conveyance of the geomembrane under the guidance of the folding guide device;

[0033] As shown in the figure:

[0034] 1. First conveyor, 2. Second tensioning device, 3. Folding guide device, 4. Second conveyor, 5. Unwinding roller, 7. Folding device, 8. Geonet, 9. Geomembrane, 10. Geocord, 11. Active tensioning roller, 12. Passive tensioning roller, 13. Sewing device, 14. Monitoring structure, 21. Feed roller, 22. Discharge 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, fixed 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

[0035] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0036] Refer to the attached Figure 1-7 The present invention provides a seam edge system for sewing geomembranes of building protection nets, comprising a first conveying device 1 for the building protection net to sequentially bypass or pass through, 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.

[0037] The building protection net is unwound from the unwinding roller 5 located in front of the first conveying device 1. 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.

[0038] 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 provided between the two first steering rollers.

[0039] 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.

[0040] 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 system's bracket. The second driving device 27 has the same structure as the first driving device 27.

[0041] The first tensioning device includes an active tensioning roller 11 that slides vertically on the bracket, and a power device that drives the active tensioning roller 11 to slide. The power device includes a cylinder that extends and retracts in the height direction. The protruding end of the cylinder is connected to a slide. The slide is slidably connected to the bracket, and the active tensioning roller 11 is axially connected to the slide.

[0042] The tension monitoring device includes a passive tensioning roller 12 that slides vertically, and a monitoring structure 14 that monitors the height of the passive tensioning roller 12. The tension monitoring device includes a slider axially connected to the passive tensioning roller 12 and a slide bar that allows the slider to slide up and down. The monitoring structure 14 includes a monitoring plate located on the side of the slider, which is equipped with two sensors arranged along the height direction.

[0043] The second tensioning device 2 includes a tensioning frame located behind the guide roller, and the feed roller 21 and the discharge roller 22 are axially connected to the tensioning frame. The tensioning frame is also axially connected to a tensioning plate 25 located below the feed roller 21 through a tensioning shaft 26. There are two tensioning plates 25, and the two tensioning plates 25 are arranged along the axial direction of the feed roller 21.

[0044] The two tensioning plates 25 are connected to the upper shaft with three lower tensioning rollers 24 arranged from front to back along the conveying direction of the building protection net. The tensioning shaft 26 is located in front of the lower tensioning rollers 24. The distance between two adjacent lower tensioning rollers 24 is the same.

[0045] An upper tensioning roller 23 is provided between two adjacent lower tensioning rollers 24, which is located above the lower tensioning rollers 24 and has its axis connected to the tensioning frame. 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.

[0046] 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.

[0047] The folding guide device 3 includes a groove plate 31 with a groove on the side. The groove depth 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. 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. A channel for the geomembrane to pass through is formed between the guide plate 316 and the groove.

[0048] The conveying rear of the trough plate 31 is further provided with a V-shaped fixed plate 33 with an opening toward the trough plate 31. The second trough section 312 is located in the V-shaped fixed plate 33. The top plate and bottom plate of the fixed plate 33 are respectively fixed to the top wall 314 and bottom wall 315 of the second trough section 312.

[0049] 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 .

[0050] The edge of the top plate is flush with the edge of the top wall 314 of the second trough 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 trough section 312 away from the side wall 313 .

[0051] 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 fixed on 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 by an adjustment bolt threadedly connected to the bracket, and 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 by a connection threadedly connected to the intermediate plate 35.

[0052] 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.

[0053] The side of the bending plate 48 connected to the support rod 47 is the first side of the bending plate 48. 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. The second perforation extends upward and obliquely away from the first side. The end of the second perforation away from the first side is connected to the 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.

[0054] 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 passing through 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.

[0055] In this solution, the suturing device is prior art.

[0056] A method for using a seam edge system for sewing geomembranes of building protection nets, comprising the following steps:

[0057] 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;

[0058] b. After the building protection net is conveyed from front to back through the first conveying device 1, it passes around 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 passing around 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 upward;

[0059] 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 directed toward 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 transported along the conveying direction of the building protection net. The lower flange of the geomembrane is folded downward and then transported along the conveying direction of the building protection net, that is, backward transport. At the same time, the geotextile rope 10 enters the bend of the geomembrane along the rope guide tube 32;

[0060] d. The building protection net, geomembrane and geostring 10 are put into the sewing device 13 for sewing;

[0061] e. Then, the user enters the monitoring and tensioning device, monitors the height of the passive tensioning roller 12 in real time through the monitoring structure 14, and adjusts the height of the active tensioning roller 11 to achieve the tensioning degree of the building protection net passing through the sewing device 13, thereby preventing the needle of the sewing device 13 from breaking;

[0062] f. Then it passes around the second adjusting roller and moves backward. At this time, the folded edge is located at the bottom, and the top surface of the building protection net is located above the bottom surface. Then it passes through the second conveying device 4 and enters the second tensioning device 2;

[0063] 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 building protection net is tensioned more smoothly. 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.

[0064] 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 adopting existing technologies, which will not be described here. The above embodiments and drawings are only used to illustrate the technical solutions 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 seam edge system for sewing geomembranes on building protection nets, characterized by: The invention comprises a first tensioning device, a sewing device (13), and a monitoring tensioning device for sequentially feeding a building protection net. A folding device (7) for folding the edge of the building protection net is provided between the first tensioning device and the sewing device (13). A folding guide device (3) for folding a geomembrane and feeding it into the folded edge of the building protection net is provided between the folding device (7) and the sewing device (13). The monitoring tensioning device is electrically connected to the first tensioning device.

2. The seam edge system for sewing geomembranes to building protection nets according to claim 1 is characterized by: 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 slides vertically, and a monitoring structure (14) that monitors the height position of the passive tensioning roller (12).

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

4. The seam edge system for sewing geomembranes of building protection nets 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 geomembranes of building protection nets according to claim 4, characterized in that: 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 through 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 is located behind the feed roller (21).

6. The seam edge system for sewing geomembranes of building protection nets according to claim 5, characterized in that: The tensioning plate (25) is connected to a plurality of lower tensioning rollers (24) arranged along the conveying direction of the building protection net on an upper axis. An upper tensioning roller (23) located above the lower tensioning rollers (24) and connected to the tensioning frame on an axis 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 geomembranes to building protection nets according to claim 1, characterized in that: 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 width of the first groove section (311) and the second groove section (312) are both tapered, the first groove section (311) and the second groove section (312) are connected at the maximum groove width, 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 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.

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

9. The seam edge system for sewing geomembranes of building protection nets according to claim 8, characterized in that: A guide rope pipe (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 guide rope pipe (32).

10. The seam edge system for sewing geomembrane to a 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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