Stretching device for geomembrane production

Abstract

The utility model relates to the technical field of geomembrane production, and discloses a stretching device for geomembrane production, which comprises a bottom plate and a geomembrane, the left side and the right side of the bottom of the bottom plate are respectively provided with a support plate, the top of the bottom plate is provided with a U-shaped frame, and the left side and the right side of the U-shaped frame are respectively provided with a mounting shaft with one end extending into the U-shaped frame. According to the stretching device for geomembrane production, a servo motor is started to drive a sliding block, two second electric telescopic rods and a pressing plate to move leftwards, and therefore extrusion stretching operation can be conducted on different positions of the top of a geomembrane; a double-shaft servo motor can be started to drive the two mounting shafts, the two U-shaped plates and the geomembrane to rotate by 180 degrees, so that the geomembrane is turned over, the upper side and the lower side of the geomembrane can be extruded and stretched, finally, the purpose of wide detection range is achieved, the stretching resistance of the geomembrane is comprehensively detected, and the detection efficiency is improved. And the accuracy of the detection result is improved.

Description

Technical Field

[0001] This utility model relates to the field of geomembrane production technology, specifically a stretching device for geomembrane production. Background Technology

[0002] Geomembrane is a geosynthetic seepage control material made of plastic film as the impermeable base material and non-woven fabric. Its seepage control performance mainly depends on the seepage control performance of the plastic film. During use, due to the complexity of the environment, geomembrane is prone to local stretching, and its permeability coefficient will change with tensile strain, thus causing seepage control failure. Therefore, during the production of geomembrane, it is often necessary to conduct tensile and permeability tests on the geomembrane to test its tensile strength. Thus, a stretching device is used. However, the structure of existing geomembrane stretching devices is mostly relatively simple. They can usually only compress and stretch the geomembrane at a fixed position, resulting in a limited testing range and easy deviation in test results, which is not conducive to use. Therefore, a stretching device for geomembrane production is proposed. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a stretching device for geomembrane production, which has advantages such as a wide detection range. It solves the problem that most existing geomembrane stretching devices have relatively simple structures and can usually only compress and stretch fixed positions of the geomembrane, resulting in a limited detection range and easy deviation in detection results, which is not conducive to use.

[0005] (II) Technical Solution

[0006] To achieve the aforementioned goal of a wide detection range, this utility model provides the following technical solution: a stretching device for geomembrane production, comprising a base plate and a geomembrane. Support plates are provided on both the left and right sides of the bottom of the base plate, and a U-shaped frame is provided on the top of the base plate. Each side of the U-shaped frame has an installation shaft extending into it. U-shaped plates are provided on opposite sides of the two installation shafts. First anti-slip pads are provided on the inner bottom walls of the two U-shaped plates. The geomembrane is placed on top of the two first anti-slip pads. Clamping blocks are provided on the inner walls of the opposite sides of the two U-shaped plates, positioned above the geomembrane. Second anti-slip pads are provided at the bottom of the two clamping blocks. First electric telescopic rods are provided on the front and rear sides of the top of the two U-shaped plates. The output ends of the first electric telescopic rods on the left and right sides extend into the interior of the two U-shaped plates and are fixedly connected to the top of the two clamping blocks. A controller is provided on the front side of the base plate. A threaded rod extending to its right side is provided on the top left side of the inner wall. A groove is provided on the top inner wall of the U-shaped frame above the threaded rod. A slider is provided on the right side inside the groove, with one end threaded to the outside of the threaded rod. A second electric telescopic rod is provided on both the front and rear sides of the bottom of the slider. A pressure plate is provided on the output end of the second electric telescopic rod on the front side, located above the geomembrane and fixedly connected to the output end of the second electric telescopic rod on the rear side. A first drive assembly is provided on the top right side of the U-shaped frame, with one end fixedly connected to the outside of the threaded rod. A transmission assembly is provided on both the left and right sides of the U-shaped frame, with one end fixedly connected to the outside of two mounting shafts and the other end extending to the bottom of the base plate. The two transmission assemblies are located on opposite sides of the two support plates. A second drive assembly is provided at the bottom of the base plate, with both ends of the second drive assembly extending to opposite sides of the two support plates and fixedly connected to the outside of the two transmission assemblies.

[0007] Preferably, the first drive assembly includes a servo motor, the servo motor is fixedly mounted on the top right side of the U-shaped frame, a drive gear is fixedly mounted on the output shaft of the servo motor, and a driven gear located on the right side of the U-shaped frame and meshing with the drive gear at one end is fixedly mounted on the outer side of the threaded rod.

[0008] Preferably, the transmission assembly includes fixed blocks, and fixed blocks are fixedly installed on both the left and right sides of the U-shaped frame, respectively located above two mounting shafts. Worms are movably installed on the bottom of each of the two fixed blocks, respectively located behind the two mounting shafts and with one end extending to the bottom of the base plate. The two worms are located on opposite sides of the two support plates. Worm wheels are fixedly installed on the outer sides of the two mounting shafts, respectively located on the left and right sides of the U-shaped frame and with one end meshing with the two worms.

[0009] Preferably, the second drive assembly includes a dual-axis servo motor. The dual-axis servo motor is fixedly installed at the bottom of the base plate between the two support plates. The output shafts on both sides of the dual-axis servo motor are fixedly installed with a rotating shaft extending to the opposite side of the two support plates at one end. The opposite side of the two rotating shafts are fixedly installed with drive bevel gears. The outer side of the two worm gears are fixedly installed with driven bevel gears located below the base plate and with one end meshing with the two drive bevel gears respectively.

[0010] Preferably, the U-shaped frame has round holes on both the left and right sides, and a first bearing is fixedly installed inside each of the two round holes. The mounting shaft is rotatably connected to the U-shaped frame through the first bearing.

[0011] Preferably, a second bearing is fixedly installed on the top left side of the inner wall of the U-shaped frame, and the threaded rod is rotatably connected to the left side of the inner wall of the U-shaped frame through the second bearing. The slider has a threaded hole inside that matches the threaded rod.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a stretching device for geomembrane production, which has the following beneficial effects:

[0014] This stretching device for geomembrane production works by placing the left and right ends of the geomembrane on top of two first anti-slip pads. Then, the first electric telescopic rods on both sides are activated to move the two clamping blocks downwards until the bottoms of the two second anti-slip pads are tightly fitted against the top of the geomembrane, thus clamping and fixing the left and right ends of the geomembrane. Next, the two second electric telescopic rods are activated to move the pressure plate downwards, thus performing a compression and stretching operation on the geomembrane. Simultaneously, a servo motor is activated to drive a drive gear to rotate, which in turn drives a threaded rod to rotate, thereby rotating the slider and the two second electric... The telescopic rod and pressure plate move to the left as a whole, allowing for compression and stretching operations on different positions of the top of the geomembrane. Secondly, a dual-axis servo motor can be activated to drive two rotating shafts and two driving bevel gears to rotate. These, in turn, drive two worm gears to rotate two worm shafts, which in turn drive two mounting shafts, two U-shaped plates, and the geomembrane to rotate 180 degrees. This flips the geomembrane over, enabling compression and stretching operations on both the top and bottom sides. Ultimately, this achieves a wide testing range, allowing for comprehensive testing of the geomembrane's tensile strength and improving the accuracy of the test results. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a partial cross-sectional view of the left side U-shaped plate of this utility model from the right side.

[0018] Figure 4 This is a partial cross-sectional view of the slider of this utility model from the right side.

[0019] In the diagram: 1. Base plate, 2. Support plate, 3. U-shaped frame, 4. Mounting shaft, 5. U-shaped plate, 6. First anti-slip pad, 7. Geomembrane, 8. Clamping block, 9. Second anti-slip pad, 10. First electric telescopic rod, 11. Controller, 12. Threaded rod, 13. Slide groove, 14. Slider, 15. Second electric telescopic rod, 16. Pressure plate, 17. First drive assembly, 171. Servo motor, 172. Drive gear, 173. Driven gear, 18. Transmission assembly, 181. Fixing block, 182. Worm gear, 183. Worm wheel, 19. Second drive assembly, 191. Dual-axis servo motor, 192. Rotating shaft, 193. Drive bevel gear, 194. Driven bevel gear. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a stretching device for geomembrane production, comprising a base plate 1 and a geomembrane 7. Support plates 2 are fixedly installed on both the left and right sides of the bottom of the base plate 1. A U-shaped frame 3 is fixedly installed on the top of the base plate 1. An installation shaft 4 extending into the interior of each end is movably installed on both the left and right sides of the U-shaped frame 3. Circular holes are provided on both sides of the U-shaped frame 3, and first bearings are fixedly installed inside each of the two circular holes. The installation shafts 4 are rotatably connected to the U-shaped frame 3 through the first bearings. U-shaped plates 5 are fixedly installed on opposite sides of the two installation shafts 4. The inner bottom walls of the two U-shaped plates 5 are fixed... A first anti-slip pad 6 is installed, and a geomembrane 7 is placed on top of the two first anti-slip pads 6. Clamping blocks 8 located above the geomembrane 7 are movably installed on the inner walls of the opposite sides of the two U-shaped plates 5. A second anti-slip pad 9 is fixedly installed at the bottom of the two clamping blocks 8. A first electric telescopic rod 10 is fixedly installed on the front and rear sides of the top of the two U-shaped plates 5. The model of the first electric telescopic rod 10 can be SKD61. The output ends of the first electric telescopic rods 10 on the left and right sides extend into the interior of the two U-shaped plates 5 and are fixedly connected to the top of the two clamping blocks 8 respectively. A controller 11 is fixedly installed on the front side of the base plate 1.

[0022] A threaded rod 12 extending to its right side is movably installed on the top left side of the inner wall of the U-shaped frame 3. A second bearing is fixedly installed on the top left side of the inner wall of the U-shaped frame 3. The threaded rod 12 is rotatably connected to the left side of the inner wall of the U-shaped frame 3 through the second bearing. A groove 13 is opened on the top inner wall of the U-shaped frame 3 above the threaded rod 12. A slider 14 is movably installed on the right side inside the groove 13, with one end threadedly connected to the outside of the threaded rod 12. A threaded hole matching the threaded rod 12 is opened inside the slider 14. A second electric telescopic rod 15 is fixedly installed on both the front and rear sides of the bottom of the slider 14. The model of the second electric telescopic rod 15 can be YNT-03. A pressure plate 16 is fixedly installed on the output end of the front second electric telescopic rod 15, located above the geomembrane 7, and one end is fixedly connected to the output end of the rear second electric telescopic rod 15.

[0023] A first drive assembly 17 is fixedly installed on the top right side of the U-shaped frame 3, with one end fixedly connected to the outside of the threaded rod 12. The first drive assembly 17 includes a servo motor 171. The servo motor 171 is fixedly installed on the top right side of the U-shaped frame 3. The model of the servo motor 171 can be I HSS57-36-20. A drive gear 172 is fixedly installed on the output shaft of the servo motor 171. A driven gear 173 located on the right side of the U-shaped frame 3 and meshing with the drive gear 172 at one end is fixedly installed on the outside of the threaded rod 12.

[0024] On both sides of the U-shaped frame 3, there is a transmission assembly 18, one end of which is fixedly connected to the outside of the two mounting shafts 4 respectively, and the other end of which extends to the bottom of the base plate 1. The two transmission assemblies 18 are located on opposite sides of the two support plates 2 respectively. The transmission assembly 18 includes a fixing block 181. On both sides of the U-shaped frame 3, there are fixing blocks 181 located above the two mounting shafts 4 respectively. On the bottom of the two fixing blocks 181, there are movably mounted worm gears 182 located behind the two mounting shafts 4 respectively, and one end of which extends to the bottom of the base plate 1 respectively. The two worm gears 182 are located on opposite sides of the two support plates 2 respectively. On the bottom of the two fixing blocks 181, there are third bearings fixedly mounted. The worm gears 182 are rotatably connected to the bottom of the fixing blocks 181 through the third bearings. On the outside of the two mounting shafts 4, there are worm wheels 183 located on the left and right sides of the U-shaped frame 3 respectively, and one end of which meshes with the two worm gears 182 respectively.

[0025] A second drive assembly 19 is fixedly installed on the bottom of the base plate 1. The left and right ends of the second drive assembly 19 extend to the opposite sides of the two support plates 2 and are fixedly connected to the outer sides of the two transmission assemblies 18 respectively. The second drive assembly 19 includes a dual-axis servo motor 191. The dual-axis servo motor 191 located between the two support plates 2 is fixedly installed on the bottom of the base plate 1. The model of the dual-axis servo motor 191 can be HDMF2089050. The output shafts on both sides of the dual-axis servo motor 191 are fixedly installed with a rotating shaft 192, one end of which extends to the opposite side of the two support plates 2 respectively. The opposite sides of the two support plates 2 are provided with mounting holes that are adapted to the rotating shaft 192. The opposite sides of the two rotating shafts 192 are fixedly installed with drive bevel gears 193. The outer sides of the two worm gears 182 are fixedly installed with driven bevel gears 194 located below the base plate 1 and one end of which meshes with the two drive bevel gears 193 respectively. All electrical components mentioned in the text are connected to the controller 11 and the 220V mains power.

[0026] In use, the left and right ends of the geomembrane 7 are placed on top of the two first anti-slip pads 6, respectively. Then, the controller 11 activates the first electric telescopic rods 10 on both sides to move the two clamping blocks 8 downwards until the bottoms of the two second anti-slip pads 9 are tightly attached to the top of the geomembrane 7, thus clamping and fixing the left and right ends of the geomembrane 7. Next, the two second electric telescopic rods 15 are activated to move the pressure plate 16 downwards, thereby performing compression and stretching operations on the geomembrane 7. At the same time, the servo motor 171 can be activated to drive the drive gear 172 to rotate, which in turn drives the threaded rod 12 to rotate through the driven gear 173, thereby moving the slider 14, the two second electric telescopic rods 15, and the pressure plate 16 to the left as a whole, thus enabling compression and stretching operations on different positions on the top of the geomembrane 7. Furthermore, the controller 11 can also activate the second electric telescopic rods 15 to move the pressure plate 16 downwards, thereby moving the slider 14, the two second electric telescopic rods 15, and the pressure plate 16 to the left as a whole, thus enabling compression and stretching operations on different positions on the top of the geomembrane 7. A dual-axis servo motor 191 drives two rotating shafts 192 and two driving bevel gears 193 to rotate, which in turn drives two worm gears 182 to rotate via two driven bevel gears 194. The two worm gears 183 then drive two mounting shafts 4, two U-shaped plates 5, and the geomembrane 7 to rotate 180 degrees as a whole, thereby flipping the geomembrane 7 and performing compression and stretching operations on both the upper and lower sides of the geomembrane 7. This allows for a comprehensive test of the tensile strength of the geomembrane 7, improving the accuracy of the test results. After the geomembrane 7 has been stretched, the first electric telescopic rods 10 on both sides can be activated to move the two clamping blocks 8 upward, thereby releasing the fixation of the geomembrane 7. Then, a permeability test can be conducted on the geomembrane 7 to test its seepage prevention performance after stretching, ultimately determining the tensile strength of the geomembrane 7.

[0027] In summary, this stretching device for geomembrane production places the left and right ends of the geomembrane 7 on top of two first anti-slip pads 6, then activates the first electric telescopic rods 10 on both sides to move the two clamping blocks 8 downwards until the bottoms of the two second anti-slip pads 9 are tightly fitted to the top of the geomembrane 7, thus clamping and fixing the left and right ends of the geomembrane 7. Next, the two second electric telescopic rods 15 are activated to move the pressure plate 16 downwards, thus performing a compression and stretching operation on the geomembrane 7. Simultaneously, the servo motor 171 is activated to drive the drive gear 172 to rotate, which in turn drives the threaded rod 12 to rotate via the driven gear 173, thereby causing the slider 14, the two second electric telescopic rods 15, and the pressure plate 16 to move to the left as a whole. This allows for compression and stretching of different positions on the top of the geomembrane 7. In addition to the compression and stretching operation, the dual-axis servo motor 191 can be activated to drive the two rotating shafts 192 and the two driving bevel gears 193 to rotate. In turn, the two driven bevel gears 194 drive the two worm gears 182 to rotate, and the two worm gears 183 drive the two mounting shafts 4, the two U-shaped plates 5, and the geomembrane 7 to rotate 180 degrees as a whole. This flips the geomembrane 7, allowing for compression and stretching operations on both the upper and lower sides of the geomembrane 7. Ultimately, this achieves a wide testing range, enabling comprehensive testing of the tensile strength of the geomembrane 7. This improves the accuracy of the test results and solves the problem that most existing geomembrane stretching devices have relatively simple structures, usually only able to compress and stretch the geomembrane at a fixed position, resulting in a limited testing range and easily deviated test results, which is not conducive to use.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stretching device for geomembrane production, comprising a base plate (1) and a geomembrane (7), wherein support plates (2) are provided on both the left and right sides of the bottom of the base plate (1), characterized in that: A U-shaped frame (3) is provided on the top of the base plate (1). An installation shaft (4) extending into the interior is provided on both the left and right sides of the U-shaped frame (3). U-shaped plates (5) are provided on opposite sides of the two installation shafts (4). First anti-slip pads (6) are provided on the inner bottom walls of the two U-shaped plates (5). The geomembrane (7) is placed on top of the two first anti-slip pads (6). Clamping blocks (8) located above the geomembrane (7) are provided on the inner walls of the opposite sides of the two U-shaped plates (5). The bottom of the two clamping blocks (8)... Each is equipped with a second anti-slip pad (9). The top front and rear sides of the two U-shaped plates (5) are each equipped with a first electric telescopic rod (10). The output ends of the first electric telescopic rods (10) on the left and right sides extend into the interior of the two U-shaped plates (5) and are fixedly connected to the top of the two clamping blocks (8). A controller (11) is provided on the front side of the base plate (1). A threaded rod (12) extending to its right side is provided on the top left side of the inner wall of the U-shaped frame (3). The inner top wall of the U-shaped frame (3) is provided with a threaded rod (12) located on the threaded rod (1). 2) The upper chute (13) has a slider (14) on the right side of the inside of the chute (13) that is threaded to the outside of the threaded rod (12). The slider (14) has a second electric telescopic rod (15) on both the front and rear sides of the bottom. The output end of the second electric telescopic rod (15) on the front side is provided with a pressure plate (16) located above the geomembrane (7) and fixedly connected to the output end of the second electric telescopic rod (15) on the rear side. The top right side of the U-shaped frame (3) is provided with a slider (14) that is fixedly connected to the outside of the threaded rod (12). The first drive assembly (17) has a transmission assembly (18) on each of the left and right sides of the U-shaped frame (3), one end of which is fixedly connected to the outside of the two mounting shafts (4) and the other end of which extends to the bottom of the base plate (1). The two transmission assemblies (18) are located on opposite sides of the two support plates (2). The bottom of the base plate (1) is provided with a second drive assembly (19). The left and right ends of the second drive assembly (19) extend to opposite sides of the two support plates (2) and are fixedly connected to the outside of the two transmission assemblies (18).

2. The stretching device for geomembrane production according to claim 1, characterized in that: The first drive assembly (17) includes a servo motor (171). The servo motor (171) is fixedly installed on the top right side of the U-shaped frame (3). The output shaft of the servo motor (171) is fixedly installed with a drive gear (172). The outer side of the threaded rod (12) is fixedly installed with a driven gear (173) located on the right side of the U-shaped frame (3) and one end meshing with the drive gear (172).

3. The stretching device for geomembrane production according to claim 1, characterized in that: The transmission assembly (18) includes a fixing block (181). The left and right sides of the U-shaped frame (3) are fixedly installed with fixing blocks (181) located above the two mounting shafts (4). The bottom of the two fixing blocks (181) is movably installed with worm gears (182) located behind the two mounting shafts (4) and extending to the bottom of the base plate (1) at one end. The two worm gears (182) are located on opposite sides of the two support plates (2). The outer sides of the two mounting shafts (4) are fixedly installed with worm wheels (183) located on the left and right sides of the U-shaped frame (3) and meshing with the two worm gears (182) at one end.

4. A stretching device for geomembrane production according to claim 3, characterized in that: The second drive assembly (19) includes a dual-axis servo motor (191). The dual-axis servo motor (191) is fixedly installed at the bottom of the base plate (1) between the two support plates (2). The output shafts on the left and right sides of the dual-axis servo motor (191) are each fixedly installed with a rotating shaft (192) that extends to the opposite side of the two support plates (2). The opposite sides of the two rotating shafts (192) are each fixedly installed with a drive bevel gear (193). The outer sides of the two worm gears (182) are each fixedly installed with a driven bevel gear (194) located below the base plate (1) and one end of which meshes with the two drive bevel gears (193).

5. A stretching device for geomembrane production according to claim 1, characterized in that: The U-shaped frame (3) has round holes on both the left and right sides, and the first bearing is fixedly installed inside the two round holes. The mounting shaft (4) is rotatably connected to the U-shaped frame (3) through the first bearing.

6. A stretching device for geomembrane production according to claim 1, characterized in that: A second bearing is fixedly installed on the top left side of the inner wall of the U-shaped frame (3). The threaded rod (12) is rotatably connected to the left side of the inner wall of the U-shaped frame (3) through the second bearing. The slider (14) has a threaded hole inside that matches the threaded rod (12).

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