A method for stitching geomembrane on construction protection net
By using folding devices and tension monitoring devices in the production process of building protective nets, the problems of geomembrane feeding into the folding edge and needle breakage were solved, achieving stable sewing and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YINAN ZHITONG PLASTIC MASCH CO LTD
- Filing Date
- 2024-10-24
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, it is difficult to effectively feed geomembranes into the folded edges and ensure that the opening faces inward after folding during the production of building protective nets. At the same time, the needles of the sewing devices are prone to breakage, and excessive force makes it difficult to control the tension.
The geomembrane is folded using a folding device and then fed into the folded edge. The tension of the building protection net is monitored in real time using a tension monitoring device. The tension is adjusted using the first tensioning device to prevent the needle from breaking.
This method enables effective folding and insertion of the geomembrane, protects the needle of the sewing device, improves production efficiency, avoids needle breakage, and ensures stable sewing of the building protection net.
Smart Images
Figure CN119265811B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building safety net production, and more particularly to the technical field of sewing geomembranes into building safety nets, specifically a sewing method for sewing geomembranes into building safety nets. Background Technology
[0002] Construction safety nets are nets used for protection during construction. During processing, the nets need to have folded edges, and a geomembrane is inserted into these folds. After one fold, both the folds and the openings of the geomembrane face inwards. Then, geotextile ropes are inserted into the geomembrane, and finally, a sewing device is used to sew the safety net and geomembrane together, simultaneously pressing the geotextile ropes into the geomembrane through the sewing thread.
[0003] Currently, a key challenge in the production process is ensuring the geomembrane is folded and fed into the folded edge while maintaining the inward orientation of both the folded opening and the folded edge opening. Since excessive force on the sewing device's needle can cause it to break, maintaining the tension of the protective netting is crucial. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a sewing system for stitching geomembranes into building safety nets. This system allows the geomembrane to be folded and then fed into the folded edge, while simultaneously monitoring the tension of the building safety net at the sewing device in real time to prevent needle breakage.
[0005] This invention is achieved through the following technical solution: a method for stitching geomembranes into building protective nets, comprising the following steps:
[0006] a. The construction safety net unwound from the unwinding roller passes sequentially through the first tensioning device and the folding device before entering the sewing device;
[0007] 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 protective net. The guide tube sends the georope into the included angle after the geomembrane is folded.
[0008] c. After being sewn by the sewing device, the geonet continues to be conveyed after bypassing the passive tension roller of the monitoring tensioning device, and then exits from it. The monitoring device is electrically connected to the first tensioning device. The monitoring tensioning device monitors the tension of the building protection net by monitoring the height of the passive tension roller, and adjusts the tension of the building protection net that has passed through the sewing device by adjusting the tension of the geonet through the first tensioning device, thereby protecting the needle inside the sewing device.
[0009] In use, this invention uses a folding device to fold the geomembrane and feed it into the folded edge. At the same time, a tension monitoring device monitors the tension of the building safety net at the sewing device in real time. When the building safety net is too tight, a signal is transmitted to the first tensioning device, which drives the first tensioning device to loosen the building safety net, thereby adjusting the tension of the building safety net and preventing the needle from breaking.
[0010] Preferably, the first tensioning device includes an active tensioning roller that slides vertically and a power device for driving the active tensioning roller to slide. The tension monitoring device includes a passive tensioning roller that slides vertically and a monitoring structure for monitoring the height position of the passive tensioning roller.
[0011] This preferred solution uses a power unit to drive the active tensioning roller to move along the height direction, thereby achieving tensioning of the building safety net. The height of the passive tensioning roller is monitored in real time by a monitoring structure, and the tension of the building safety net is judged by the height of the passive tensioning roller.
[0012] Preferably, the monitoring tensioning device includes a slider shaft 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 the monitoring plate is provided with two sensors arranged along the height direction.
[0013] In use, when the tension of the building safety net is high, the building safety 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 relaxing the building safety net and achieving tensioning of the building safety net that has passed through the sewing device.
[0014] Preferably, a first conveying device for conveying the building protection netting 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.
[0015] This preferred solution facilitates the transmission of the building safety net by using a first and a second conveying device, and provides tension to the building safety net by using a second tensioning device.
[0016] Preferably, the second tensioning device includes a feed roller, a lower tensioning roller, and a discharge roller that are passed around sequentially by the building safety net. The lower tensioning roller is axially connected to a tensioning plate located below the feed roller. The tensioning plate is axially connected to a tensioning frame via a 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 is located behind the feed roller.
[0017] This preferred solution uses a drive device to rotate the tensioning plate, which in turn drives the lower tensioning roller to rotate up and down. This rotation replaces the sliding motion, resulting in a smoother tensioning of the construction safety net. Simultaneously, it reduces the range of motion of the lower tensioning roller closest to the feed roller, lowering the tension on the portion of the construction safety net between the guide roller and the feed roller, thus protecting the safety net.
[0018] 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 is provided between two adjacent lower tensioning rollers, located above the lower tensioning rollers and axially connected to the tensioning frame. 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 rollers.
[0019] This preferred solution, through the arrangement of the lower tension roller and the upper tension roller, facilitates increasing the tension length of the building safety net.
[0020] Preferably, the folding guide device includes a groove plate with grooves on the side. The groove depth gradually decreases along the geomembrane conveying direction. The groove includes a first groove segment and a second groove segment connected sequentially along the geomembrane conveying direction. The groove width of the first groove segment and the second groove segment are both conical. The first groove segment and the second groove segment are connected at the maximum groove width. The first groove segment is also provided with a guide plate that connects the side wall and the top wall, and the side wall and the bottom wall and is adapted to the shape of the groove. A channel for the geomembrane to pass through is formed between the guide plate and the groove.
[0021] In this preferred embodiment, the trough plate is placed above the protective netting, with the opening of the groove facing the folded edge of the protective netting. The second trough section is inserted into the folded edge, and the geomembrane is inserted into the first trough section. Guided by the channel, the geomembrane flattens in a top-down view before entering the second trough section. Once in the second trough section, away from the first trough section, the upper edge of the geomembrane folds upward and is conveyed along the conveying direction of the protective netting, while the lower edge folds downward and is conveyed along the same direction. This achieves the folding and insertion of the geomembrane into the folded edge, thus completing the folding of the geomembrane during conveying and guiding the folded geomembrane into the folded edge, thereby improving production efficiency.
[0022] Preferably, a V-shaped fixing plate with an opening facing the trough plate is provided behind the conveying trough plate, and the second trough section is located inside the V-shaped fixing plate. The top plate and bottom plate of the fixing plate are respectively fixed to the top wall and bottom wall of the second trough section.
[0023] This preferred solution uses a fixing plate to guide the geomembrane during transport.
[0024] Preferably, a guide rope tube located behind the groove plate is also fixed inside the V-shaped fixing plate, and the guide rope tube contains a geotextile rope. This preferred embodiment facilitates the embedding of the geotextile rope into the folded edge as well.
[0025] Preferably, the first tensioning device is located below the sewing device, a first adjusting roller group is provided between the first tensioning device and the sewing device, a second adjusting roller is provided above the monitoring tensioning device, and the monitoring tensioning device is located in front of the sewing device.
[0026] This preferred solution facilitates efficient use of space by setting the position of the first tensioning device.
[0027] The beneficial effects of this invention are as follows: The folding device folds the geomembrane and feeds it into the folded edge. Simultaneously, the tension monitoring device monitors the tension of the protective netting at the sewing device in real time. When the protective netting is too tight, a signal is transmitted to the first tensioning device, driving it to loosen the protective netting, thus adjusting the tension and preventing needle breakage. When the protective netting is too tight, it causes the passive tensioning roller to move upward. When the sensor detects the slider, a signal is transmitted to the first tensioning device, and the power device drives the active tensioning roller to rise, thereby loosening the protective netting. This achieves the tensioning of the protective netting after it passes through the sewing device. Tighten; place the trough plate above the building safety net, with the opening of the groove facing the folded edge of the building safety net, and insert the second trough section into the folded edge. Insert the geomembrane into the first trough section. Under the guidance of the channel, the geomembrane becomes flat in the top view, and then enters the second trough section. When it reaches the second trough section and is away from the first trough section, the upper edge of the geomembrane is folded upward and conveyed along the conveying direction of the building safety net, and the lower edge of the geomembrane is folded downward and conveyed along the conveying direction of the building safety net. This realizes that the geomembrane is folded and inserted into the folded edge, thus completing the folding of the geomembrane during the conveying process and guiding the folded geomembrane into the folded edge, thereby improving production efficiency. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of the present invention;
[0029] Figure 2 This is a top view of the folding guide device in use.
[0030] Figure 3 This is a three-dimensional schematic diagram of the groove plate.
[0031] Figure 4 This is a three-dimensional schematic diagram of the groove plate from another angle.
[0032] Figure 5 Here are the three views of the groove plate.
[0033] Figure 6 This is a top view of the folding device;
[0034] Figure 7 This is a schematic diagram showing the stitching of the building safety net and geomembrane.
[0035] Figure 8 This is a schematic diagram of the geomembrane being transported under the guidance of a folding guide device.
[0036] As shown in the figure:
[0037] 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. Georope; 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. 31. Drive device; 32. Groove plate; 33. Guide rope tube; 34. Fixing plate; 35. Connecting plate; 36. Intermediate plate; 37. Adjusting plate; 38. Adjusting elongated hole; 39. Connecting elongated 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 elongated hole; 46. Bending hole; 47. Support rod; 48. Bending plate; 49. Vertical plate. Detailed Implementation
[0038] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.
[0039] See attached document Figure 1-7 The present invention discloses a sewing system for sewing geomembranes with building protection nets, comprising a first conveying device 1 for the building protection nets to pass through or pass through in sequence, a first tensioning device, a first directional roller group, a sewing device 13, a tension monitoring device, a second directional roller, a second conveying device 4, and a second tensioning device 2.
[0040] The building safety 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 directional roller group and the sewing device 13 to fold the geomembrane and send it into the folded edge of the building safety net.
[0041] The first directional roller group includes two first directional rollers arranged along the height direction, and a folding guide device for folding the edge of the building protection net is provided between the two first directional rollers.
[0042] The first tensioning device is located below the sewing device 13. A first adjusting roller group is provided between the first tensioning device and the sewing device 13. A second adjusting 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. The sewing device and the first tensioning device are both located in front of the first adjusting roller group.
[0043] The first conveying device 1 includes a drive roller located below the building protection net and a drive wheel located directly above the drive roller. The drive roller and the drive wheel pass through the building protection net. A motor for driving the drive roller to rotate is provided on the support of the system. The second drive device 27 has the same structure as the first drive device 27.
[0044] The first tensioning device includes an active tensioning roller 11 that slides vertically on a support, and a power device that drives the active tensioning roller 11 to slide. The power device includes a cylinder that extends and retracts along the height direction. The extended end of the cylinder is connected to a slide plate, which slides on the support. The active tensioning roller 11 is axially connected to the slide plate.
[0045] The tension monitoring device includes a passive tensioning roller 12 that slides vertically, and a monitoring structure 14 that monitors the height position of the passive tensioning roller 12. The tension monitoring device includes a slider that is axially connected to the passive tensioning roller 12, and a slide rod for the slider to slide up and down. The monitoring structure 14 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.
[0046] The second tensioning device 2 includes a tensioning frame located behind the guide roller. A feed roller 21 and a discharge roller 22 are shaft-connected to the tensioning frame. A tensioning plate 25 located below the feed roller 21 is also shaft-connected to the tensioning frame via a tensioning shaft 26. There are two tensioning plates 25, which are arranged along the axial direction of the feed roller 21.
[0047] Three lower tensioning rollers 24, arranged from front to back, are shaft-connected to the two tensioning plates 25. The tensioning shaft 26 is located in front of the lower tensioning rollers 24, and the distance between any two adjacent lower tensioning rollers 24 is the same.
[0048] An upper tensioning roller 23 is provided between two adjacent lower tensioning rollers 24, located above the lower tensioning roller 24 and axially connected to the tensioning frame. The construction safety net passes around the lower tensioning roller 24 and the upper tensioning roller 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 distance between the foremost lower tensioning roller 24 and the feed roller 21 and the tensioning shaft 26 is the shortest.
[0049] The tensioning frame is also equipped with a driving device 27 for driving the tensioning plate 25 to rotate up and down. The driving device 27 includes a cylinder 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.
[0050] The folding guide device 3 includes a groove plate 31 with a groove on its side. The depth of the groove gradually decreases along the geomembrane conveying direction. The groove includes a first groove segment 311 and a second groove segment 312 connected sequentially along the geomembrane conveying direction. The groove width of the first groove segment 311 and the second groove segment 312 is conical. The first groove segment 311 and the second groove segment 312 are connected at the maximum groove width. The first groove segment 311 is also provided with a guide plate 316 that connects the side wall 313 and the top wall 314 and the side wall 313 and the bottom wall 315 and is adapted to the shape of the groove. The guide plate 316 and the groove form a channel for the geomembrane to pass through.
[0051] A V-shaped fixing plate 33 with an opening facing the trough plate 31 is also provided behind the conveying section 31. The second trough section 312 is located inside the V-shaped fixing plate 33. The top plate and bottom plate of the fixing plate 33 are respectively fixed to the top wall 314 and bottom wall 315 of the second trough section 312.
[0052] The V-shaped fixing plate 33 is also fixedly connected to a guide rope tube 32 located behind the groove plate 31, and the guide rope tube 32 is equipped with a geotextile rope 10.
[0053] The edge of the top plate is flush with the edge of the top wall 314 of the second groove 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 groove section 312 away from the side wall 313.
[0054] The bracket is connected to the fixed plate 33 via an adjustment structure. The adjustment structure includes an adjustment plate 36 and an intermediate plate 35 connecting the adjustment plate 36 and the connecting plate 34. The connecting plate 34 is fixedly connected to the fixed plate 33. The adjustment plate 36 has an adjustment elongated hole 37 for adjusting the position of the fixed plate 33 along the conveying direction of the building protective net. An adjustment bolt threadedly connected to the bracket passes through the adjustment elongated hole 37. The connecting plate 34 has a connecting elongated hole 38 for adjusting the position of the fixed plate 33 along the width direction of the building protective net. A connector threadedly connected to the intermediate plate 35 passes through the connecting elongated hole 38.
[0055] The folding device 7 includes a bending plate 48, a support rod 47 fixed to the bending plate 48 and supporting the building safety 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 safety net to pass through.
[0056] The side of the bent plate 48 connected to the support rod 47 is the first side of the bent plate 48. The bending hole 46 includes a first through hole extending along the axial direction of the support rod 47 and a second through hole arranged at an inclination. The first through hole extends to the first side, and the second through hole is located directly below the first through hole. The second through hole extends upward and at an inclination away from the first side. The end of the second through hole away from the first side is connected to the end of the first through hole away from the inner side, thus forming a V-shape. The inner opening of the bending hole 46 is the connection port between the first through hole and the first side. Its height is flush with the top surface of the support rod 47. The inner angle of the bending hole 46 is the included angle between the first through hole and the second through hole, which determines the bending angle of the building protection net.
[0057] The adjustment structure includes a horizontal plate 44 with a first elongated hole, which is bolted to a bracket. A vertical plate 49 is fixed to the horizontal plate 44. The vertical plate 49 has threaded holes arranged in the front-back direction and penetrating through the vertical plate 49 in the height direction. The bent plate 48 has a second elongated hole 45 extending in the front-back direction. A bolt threaded into the second elongated hole 45 is threaded to connect with the threaded hole.
[0058] In this solution, the suturing device is existing technology.
[0059] A method for using a seam-sealing system for geomembranes in building protective netting includes the following steps:
[0060] a. The construction safety net is unwound from the unwinding roller 5, at which point the top surface of the construction safety net is above the bottom surface;
[0061] b. After being conveyed from front to back by the first conveying device 1, the construction safety net moves upward under the guidance of a first directional roller after passing around the active tension roller 11. Under the guidance of the folding device 7, the edge of the construction safety net bends inward and backward. After passing around another first directional roller, the construction safety net is conveyed backward. At this time, the top surface of the construction safety net is below the bottom surface, and the folded edge is flipped to the top.
[0062] c. The geomembrane is located above and inside the building protection net. The groove plate 31 is placed above the building protection net, with the opening of the groove facing the folded edge of the building protection net. At this time, a certain 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 it reaches the second groove section 312 and moves away from the first groove section 311, the upper edge of the geomembrane is folded upward and conveyed along the conveying direction of the building protection net. The lower edge of the geomembrane is folded downward and conveyed along the conveying direction of the building protection net, which is to say, it is conveyed backward. At the same time, the georope 10 enters the bend of the geomembrane along the guide tube 32.
[0063] d. The construction safety net, geomembrane, and georope 10 are all inserted into the sewing device 13 for sewing;
[0064] e. Then it enters the monitoring tensioning device, through the monitoring structure 14 to monitor the height of the passive tensioning roller 12 in real time, and adjusts the height of the active tensioning roller 11 to achieve the tension of the building protection net section passing through the sewing device 13, thereby avoiding the needle of the sewing device 13 from breaking.
[0065] f. Then, it passes around the second adjusting roller and moves backward. At this time, the folded edge is located below, the top surface of the building protection net is located above the bottom surface, and then it enters the second tensioning device 2 after passing through the second conveying device 4.
[0066] g. In the second tensioning device 2, the tensioning plate 25 is rotated by the drive device 27, which in turn drives the lower tensioning roller 24 to rotate up and down. The rotation replaces the sliding motion, making the tensioning of the building protection net smoother. At the same time, the range of motion 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, thus protecting the building protection net.
[0067] Of course, the above description is not limited to the examples above. Technical features not described in this invention can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solutions of this invention and are not intended to limit this invention. This invention has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention do not depart from the spirit of this invention and should also fall within the scope of protection of the claims of this invention.
Claims
1. A method for stitching geomembranes together in building protective netting, characterized in that: Includes folding guide devices and folding edge devices; The folding guide device (3) includes a grooved plate (31) with grooves on its side. The depth of the grooves gradually decreases along the geomembrane conveying direction. The grooves include a first groove segment (311) and a second groove segment (312) connected sequentially along the geomembrane conveying direction. The width of both the first groove segment (311) and the second groove segment (312) is conical. The first groove segment (311) and the second groove segment (312) are connected at the point of maximum groove width. The trough plate (31) is also provided with a V-shaped fixing plate (33) with its opening facing the trough plate (31) at the rear of the conveying section. The second trough section (312) is located inside the V-shaped fixing plate (33). The V-shaped fixing plate (33) is also fixed with a guide rope tube (32) located behind the trough plate (31). The guide rope tube (32) is provided with a geotextile rope (10). The folding device 7 includes a bending plate (48), a support rod (47) fixed on 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) through which the building protection net passes. The suturing method includes the following steps: a. The construction safety net unwound from the unwinding roller (5) passes through the first tensioning device and the folding device (7) in sequence before entering 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 sends it into the folded edge of the building protective net. The guide tube (32) sends the georope (10) into the included angle after the geomembrane is folded. The above methods are as follows: After being conveyed from front to back by the first conveying device (1), the building safety net moves upward under the guidance of a first directional roller (11) and then passes by the folding device (7). The edge of the building safety net bends inward and backward. After passing by another first directional roller, the building safety net is conveyed backward. At this time, the top surface of the building safety net is below the bottom surface, and the folded edge is flipped to the top. The geomembrane is located above and inside the building protection net. The groove plate (31) is placed above the building protection net, and the opening of the groove faces the folded edge of the building protection net. At this time, a certain 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 it reaches the second groove section (312) and is far away from the first groove section (311), the upper edge of the geomembrane is folded up and then conveyed along the conveying direction of the building protection net. The lower edge of the geomembrane is folded down and then conveyed along the conveying direction of the building protection net, which is to convey it backward. At the same time, the georope (10) enters the bend of the geomembrane along the guide tube (32). The building protection net, geomembrane, and georope (10) are all put into the sewing device (13) for sewing.
2. The stitching method for sewing geomembranes into building protective nets according to claim 1, characterized in that: After being sewn by the sewing device (13), the geonet continues to be conveyed after bypassing the passive tension roller (12) of the monitoring tensioning device and comes out from it. The monitoring device is electrically connected to the first tensioning device. The monitoring tensioning device monitors the tension of the building protection net by monitoring the height of the passive tension roller (12), and adjusts the tension of the building protection net that has passed through the sewing device (13) by the tension of the geonet by the first tensioning device, thereby playing the role of protecting the needle inside the sewing device. The first tensioning device includes an active tensioning roller (11) that slides vertically, and a power device that drives the active tensioning roller (11) to slide. The tension monitoring device includes 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 stitching method for sewing geomembranes into building protective nets according to claim 2, characterized in that: The monitoring tensioning device includes a slider that is shaft-connected to the passive tensioning roller (12) and a slide rod for the slider to slide up and down. The monitoring structure (14) 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.
4. The stitching method for stitching geomembranes into building protective nets according to claim 1, characterized in that: A first conveying device (1) for conveying building protection netting is provided between the first tensioning device and the unwinding roller (5). A second tensioning device (2) is provided behind the monitoring tensioning device. A second conveying device (4) is provided between the second tensioning device (2) and the monitoring tensioning device.
5. The stitching method for stitching geomembranes into building protective nets according to claim 4, characterized in that: The second tensioning device (2) includes 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 stitching method for stitching geomembranes into building protective nets according to claim 5, characterized in that: The tensioning plate (25) is shafted with several lower tensioning rollers (24) arranged along the conveying direction of the building protection net. Between two adjacent lower tensioning rollers (24), there is an upper tensioning roller (23) located above the lower tensioning roller (24) and shafted on the tensioning frame. The building protection net passes around the lower tensioning roller (24) and the upper tensioning roller (23) in sequence along the conveying direction. The tensioning shaft (26) is located in front of the lower tensioning roller (24).
7. The stitching method for stitching geomembranes into building protective nets according to claim 1, characterized in that: The first groove section (311) is also provided with a guide plate (316) that connects the side wall (313) and the top wall (314), the side wall (313) and the bottom wall (315) and is adapted to the shape of the groove. The guide plate (316) and the groove form a channel for the geomembrane to pass through.
8. The stitching method for stitching geomembranes into building protective nets according to claim 7, characterized in that: The top plate and bottom plate of the fixing plate (33) are respectively fixed to the top wall (314) and bottom wall (315) of the second groove section (312).
9. The stitching method for sewing geomembranes into building protective nets according to claim 2, characterized in that: The first tensioning device is located below the sewing device (13), and a first adjusting roller group is provided between the first tensioning device and the sewing device (13). A second adjusting roller is provided above the monitoring tensioning device, and the monitoring tensioning device is located in front of the sewing device (13).