A swingback device based on geomembrane spraying
By adjusting the nozzle spacing using springs and magnetic structures, combined with preheating by a heater, the problem of excessive material deposition in the overlapping areas of the injectors was solved, achieving uniformity of the surface friction coefficient and smoothing of the geomembrane, thus improving product quality and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGZHOU XINDALI PLASTIC MASCH CO LTD
- Filing Date
- 2026-04-10
- Publication Date
- 2026-07-21
Smart Images

Figure CN122033831B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of geomembrane spraying and roughening device technology, specifically to a swaying device based on geomembrane spraying and roughening. Background Technology
[0002] As an important seepage prevention material, geomembrane is widely used in engineering fields such as water conservancy, environmental protection, and transportation. In order to increase its surface friction coefficient and meet the stability requirements of application scenarios such as slope covering, it is usually necessary to perform a roughening treatment on the surface of the geomembrane. That is, molten polymer material is sprayed onto the surface of the membrane material in the form of particles or lines through a spraying device to form a rough layer.
[0003] To achieve continuous production of wide-width geomembranes, existing blasting equipment generally employs an array of multiple sprayers. Each sprayer array typically consists of multiple nozzles, driven by a oscillating mechanism to expand the coverage width of a single sprayer array and reduce the number of nozzles. However, when multiple sprayer arrays operate in parallel, overlapping spraying inevitably occurs in the boundary areas between adjacent arrays (such as the area jointly covered by the edge nozzles of the first and second arrays). Because the two sprayer arrays move independently with a fixed spacing, the material deposition in the overlapping areas is significantly higher than in other areas, resulting in longitudinal strip-like excessive thickness defects on the geomembrane surface. This uneven thickness not only affects the product appearance but also causes inconsistent membrane surface friction coefficients, making the geomembrane prone to premature failure due to localized stress concentration during subsequent use. Summary of the Invention
[0004] The purpose of this invention is to provide a geomembrane spraying and smoothing device to solve the problem of spray overlap between adjacent sprayers mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a geomembrane spraying and roughening device, comprising a frame and an outer frame, a horizontal plate fixedly installed on the upper end of the outer frame, a mounting frame slidably connected to the upper end of the horizontal plate, a sliding plate fixedly connected to the bottom surface of the mounting frame, a sliding wheel fixedly connected to the bottom end of the sliding plate, guide rails fixedly connected to both side walls of the horizontal plate, and grooves formed on both sides of the guide rails, with the sliding wheel slidingly engaging with the grooves; a heater, an injector, and a feeding chamber are fixedly installed on the upper end of the mounting frame, and the output end of the injector is mounted on... The device is equipped with nozzles; the mounting frame is provided in multiple groups, with three mounting frames in each group. In each group of mounting frames, the middle mounting frame is designated as the central mounting frame, the mounting frame closer to the frame is designated as the left mounting frame, and the mounting frame farther from the frame is designated as the right mounting frame. A first spring is provided between the central mounting frame and the left mounting frame, and a second spring is provided between the central mounting frame and the right mounting frame. A turntable is rotatably connected to the upper end of the frame, and the turntable is rotatably connected to the left mounting frame via a connecting rod. Each group of mounting frames is connected to the other group via an extension plate.
[0006] Furthermore, a drive unit is fixedly connected to the lower end of the frame, the output end of the drive unit is fixedly connected to the center of the bottom surface of the turntable, a first positioning seat is fixedly connected to the edge of the turntable, a first fixing ring is rotatably connected to the outer side of the first positioning seat, and the end of the connecting rod near the frame is fixedly connected to the ring body of the first fixing ring.
[0007] Furthermore, a connecting plate is fixedly connected to the upper end of the left mounting bracket, a second positioning seat is fixedly connected to the upper end of the connecting plate, a second fixing ring is rotatably connected to the outer side of the second positioning seat, the end of the connecting rod away from the frame is fixedly connected to the ring body of the second fixing ring, and each pair of adjacent connecting plates are connected by an extension plate.
[0008] Furthermore, a guide rod is fixedly connected to the upper end of the horizontal plate, a first connecting block is fixedly connected to the bottom end of the mounting bracket, the first connecting block and the guide rod are slidably engaged, a fixing plate is fixedly connected to the side of the horizontal plate, the guide rail is fixedly mounted on the fixing plate, and a side groove is provided on the side of the mounting bracket.
[0009] Furthermore, two mounting plates are fixedly connected to the upper end of the horizontal plate, a fixed rod is fixedly connected between the two mounting plates, a slider is slidably connected to the body of the fixed rod, a third spring is fixedly connected between the slider and the mounting plate, the third spring is sleeved on the body of the fixed rod, and a stop block that abuts against the slider is fixedly connected to the bottom end of the mounting frame.
[0010] Furthermore, a second magnetic ring is fixedly connected to the bottom surface of both the middle mounting bracket and the right mounting bracket, and a second sealing tube is fixedly connected to the upper end of the horizontal plate located below the middle mounting bracket and the right mounting bracket, with the second magnetic ring and the second sealing tube slidingly engaged.
[0011] Furthermore, a second magnetic block is slidably attached to the inner wall of the second sealing tube, the second magnetic block is magnetically connected to the second magnetic ring, and the end of the second sealing tube away from the frame is connected to a second gas supply pipe.
[0012] Furthermore, the bottom surface of the horizontal plate is provided with multiple preheating nozzles, which are connected to the second gas supply pipe.
[0013] Furthermore, a first magnetic ring is fixedly connected to the bottom end of the left mounting bracket, and a first sealing tube is fixedly connected to the upper end of the horizontal plate located below the left mounting bracket, with the first magnetic ring and the first sealing tube slidingly engaged.
[0014] Furthermore, a first magnetic block is slidably attached to the inner wall of the first sealing tube, and the first magnetic block is magnetically connected to the first magnetic ring. The end of the first sealing tube away from the frame is connected to a first air supply pipe. An air supply groove connected to the first air supply pipe is opened in the sliding plate. An air collection chamber connected to the air supply groove is opened in the sliding wheel. An oblique nozzle is opened in the air collection chamber.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] 1. This geomembrane spraying roughening swing device, through the elastic extension and contraction of the first, second and third springs, combined with the buffering effect of the stop block and slider, can automatically adjust the spacing when the mounting frame reciprocates, so that the spraying range of the nozzles is misaligned, avoiding excessive material deposition in the overlapping area of adjacent nozzles, effectively eliminating the longitudinal strip-shaped excessive thickness defect, ensuring the uniform friction coefficient of the geomembrane surface, and improving the stability of product quality.
[0017] 2. This geomembrane spraying and resurfacing device preheats the geomembrane by recovering waste heat from the heater, thereby improving the adhesion of the raw material and the uniformity of the spraying. At the same time, it uses the sliding power of the mounting frame to automatically clean impurities from the chute, reducing component wear and extending service life. It eliminates the need for additional preheating equipment and cleaning tools, saving energy and costs, simplifying the operation process, and improving processing efficiency. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;
[0020] Figure 3 This is a front view of the present invention;
[0021] Figure 4 This is a schematic diagram of the horizontal plate in the present invention. Figure 1 ;
[0022] Figure 5 This is a schematic diagram of the mounting bracket in this invention;
[0023] Figure 6 This is a top view of the mounting bracket in this invention;
[0024] Figure 7 This is a schematic diagram of the horizontal plate in the present invention. Figure 2 ;
[0025] Figure 8 This is a cross-sectional view of the first sealing tube and the second sealing tube in this invention;
[0026] Figure 9 This is a cross-sectional view of the skateboard in this invention;
[0027] Figure 10 This is a cross-sectional view of the sliding wheel in this invention.
[0028] In the attached diagram, the components represented by each number are as follows:
[0029] 1. Frame; 2. Turntable; 3. Drive unit; 4. First positioning seat; 5. First fixing ring; 6. Connecting rod; 7. Second fixing ring; 8. Second positioning seat; 9. Connecting plate; 10. Horizontal plate; 11. Mounting bracket; 12. Heater; 13. Feed chamber; 14. Injector; 15. Nozzle; 16. Guide rail; 17. First spring; 18. Preheating nozzle; 19. Guide rod; 20. Fixing plate; 21. Slide groove; 22. Extension plate; 23. Slide plate; 24. 25. Sliding wheel; 26. Side groove; 27. Second spring; 28. First connecting block; 29. Stop block; 30. Fixed rod; 31. Third spring; 32. Slider; 33. Mounting plate; 34. First sealing tube; 35. First magnetic ring; 36. First air supply pipe; 37. Second sealing tube; 38. Second magnetic ring; 39. Second air supply pipe; 40. First magnetic block; 41. Air supply groove; 42. Air collection chamber; 43. Angled nozzle; 44. Outer frame. Detailed Implementation
[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0031] This invention provides a technical solution: such as Figure 1 - Figure 10 The illustrated geomembrane spraying and roughening device includes a frame 1 and an outer frame 44. A horizontal plate 10 is fixedly installed on the upper end of the outer frame 44. A mounting frame 11 is slidably connected to the upper end of the horizontal plate 10. A sliding plate 23 is fixedly connected to the bottom surface of the mounting frame 11. A sliding wheel 24 is fixedly connected to the bottom end of the sliding plate 23. Guide rails 16 are fixedly connected to both side walls of the horizontal plate 10. Sliding grooves 21 are formed on both sides of the guide rails 16, and the sliding wheel 24 slides in cooperation with the sliding grooves 21. A heater 12, an injector 14, and a feeding chamber 13 are fixedly installed on the upper end of the mounting frame 11. A nozzle 15 is installed at the output end of the injector 14. The mounting frame 11 is provided in multiple groups, with three mounting frames 11 in each group. In each group of mounting frames 11, the mounting frame 11 located in the middle is the middle mounting frame 11, the mounting frame 11 located near the frame 1 is the left mounting frame 11, and the mounting frame 11 located away from the frame 1 is the right mounting frame 11. A first spring 17 is provided between the middle mounting frame 11 and the left mounting frame 11, and a second spring 26 is provided between the middle mounting frame 11 and the right mounting frame 11. A turntable 2 is rotatably connected to the upper end of the frame 1. The turntable 2 is rotatably connected to the left mounting frame 11 through a connecting rod 6. Each group of mounting frames 11 is connected to each other through an extension plate 22.
[0032] In this invention, one end of the horizontal plate 10 is fixed to the frame 1, and the other end is connected to the frame of the spraying device. The horizontal plate 10 is the sliding carrier of the mounting frame 11, providing a stable motion platform for the mounting frame 11. The mounting frame 11 is equipped with the heater 12, feed chamber 13, sprayer 14 and nozzle 15 required for spraying. Each group is provided with three mounting frames 11 in order to avoid spray overlap by changing the spacing and solve the problem of excessively thick strips in existing equipment.
[0033] The sliding plate 23 and the sliding wheel 24 are fixed to the bottom surface of the mounting frame 11. The groove 21 on the guide rail 16 is perfectly matched with the sliding wheel 24. This makes the mounting frame 11 slide with less resistance, smoother movement, and no jamming, ensuring a uniform spray trajectory. The heater 12 heats and melts the polymer raw material in the feed chamber 13, so that it can be sprayed out through the ejector 14. The feed chamber 13 is specially used to store raw materials and continuously supply materials to the ejector 14 without frequent feeding. The ejector 14 is a power component that sprays the molten raw material out of the nozzle 15 at a suitable pressure. The orifice diameter and shape of the nozzle 15 are designed to make the raw material form uniform particles or lines, which adhere to the surface of the geomembrane to form a rough layer.
[0034] The first spring 17 and the second spring 26 are key to adjusting the spacing between the three mounting brackets 11. Their elastic extension and contraction allow the mounting brackets 11 to automatically change the spacing during reciprocating motion: compressing when moving forward and stretching when returning backward. This causes the spray coverage of the nozzle 15 to be misaligned, ensuring that the amount of material deposited in the overlapping area is similar to that in other areas, preventing excessive thickness. The turntable 2 and the connecting rod 6 work together, essentially forming a "cam mechanism." When the turntable 2 rotates, it pulls or pushes the left mounting bracket 11 through the connecting rod 6 to achieve reciprocating motion. This structure is simple and reliable, ensuring a stable motion frequency. The extension plate 22 connects the three mounting brackets 11 in each group, allowing them to move synchronously without deviating from their respective positions. At the same time, multiple groups of mounting brackets 11 are also linked through the extension plate 22 to achieve continuous processing of wide geomembranes.
[0035] refer to Figure 1 - Figure 10A drive unit 3 is fixedly connected to the lower end of the frame 1. The output end of the drive unit 3 is fixedly connected to the center of the bottom surface of the turntable 2. A first positioning seat 4 is fixedly connected to the edge of the turntable 2. A first fixing ring 5 is rotatably connected to the outer side of the first positioning seat 4. The end of the connecting rod 6 near the frame 1 is fixedly connected to the ring body of the first fixing ring 5. A connecting plate 9 is fixedly connected to the upper end of the left mounting bracket 11. A second positioning seat 8 is fixedly connected to the upper end of the connecting plate 9. A second fixing ring 7 is rotatably connected to the outer side of the second positioning seat 8. The end of the connecting rod 6 away from the frame 1 is fixedly connected to the ring body of the second fixing ring 7. Each pair of adjacent connecting plates 9 are connected by an extension plate 22. The upper end of the horizontal plate 10 is fixedly connected to... A guide rod 19 is connected to the bottom of the mounting bracket 11, and a first connecting block 27 is fixedly connected to the bottom of the mounting bracket 11. The first connecting block 27 and the guide rod 19 are slidably connected. A fixing plate 20 is fixedly connected to the side of the horizontal plate 10, and a guide rail 16 is fixedly installed on the fixing plate 20. A side groove 25 is opened on the side of the mounting bracket 11. Two mounting plates 32 are fixedly connected to the upper end of the horizontal plate 10, and a fixing rod 29 is fixedly connected between the two mounting plates 32. A slider 31 is slidably connected to the rod of the fixing rod 29. A third spring 30 is fixedly connected between the slider 31 and the mounting plate 32. The third spring 30 is sleeved on the rod of the fixing rod 29. A stop block 28 that abuts against the slider 31 is fixedly connected to the bottom of the mounting bracket 11.
[0036] In this invention, the drive unit 3 is a motor that drives the turntable 2 to rotate at a constant speed. The rotation of the turntable 2 is the basis for realizing the reciprocating motion of the mounting bracket 11. The first positioning seat 4 is fixed on the edge of the turntable 2, and the first fixing ring 5 is fitted on it and can rotate freely. The second positioning seat 8 and the second fixing ring 7 are the same. In this way, when the connecting rod 6 follows the rotation of the turntable 2, both ends can rotate flexibly without jamming or damage due to angle changes, ensuring smooth power transmission.
[0037] The connecting plate 9 allows the thrust or pull of the connecting rod 6 to be smoothly transmitted to the left mounting bracket 11. The guide rod 19 is fixed on the horizontal plate 10. The first connecting block 27 is fitted on the guide rod 19. When the mounting bracket 11 slides, the first connecting block 27 will move along the guide rod 19 to guide and prevent the mounting bracket 11 from shifting left or right, ensuring that the three mounting brackets 11 always move in the same straight line and the spray trajectory will not be skewed.
[0038] Two mounting plates 32 are fixed to the horizontal plate 10. The middle fixing rod 29 provides a sliding track for the slider 31. The third spring 30 is sleeved on the fixing rod 29 and is in a naturally extended state under normal conditions. When the mounting frame 11 moves away from the frame 1, the stop block 28 on the bottom surface of the middle mounting frame 11 will abut against the slider 31 and push the slider 31 to compress the third spring 30. This process will give the middle mounting frame 11 a reverse buffer force, and at the same time further increase the distance between the middle mounting frame 11 and the right mounting frame 11, so that their nozzles 15 spray range overlap less and avoid excessive thickness. The connecting plates 9 of the two adjacent groups are connected by the extension plate 22, which can make multiple groups of mounting frames 11 move synchronously without each group having a separate drive structure. This saves costs and ensures that the movement rhythm of all mounting frames 11 is consistent. When processing wide widths, the spraying effect of the entire geomembrane is uniform.
[0039] refer to Figure 1 - Figure 10 The bottom surfaces of the middle mounting bracket 11 and the right mounting bracket 11 are both fixedly connected with second magnetic rings 37. The upper ends of the horizontal plates 10 located below the middle mounting bracket 11 and the right mounting bracket 11 are both fixedly connected with second sealing tubes 36. The second magnetic rings 37 and the second sealing tubes 36 are in sliding fit. A second magnetic block 40 is slidably attached to the inner wall of the second sealing tube 36, and the second magnetic block 40 is magnetically connected to the second magnetic ring 37. The end of the second sealing tube 36 away from the frame 1 is connected to a second air supply pipe 38. Multiple preheating nozzles 18 are opened on the bottom surface of the horizontal plate 10, and the preheating nozzles 18 are connected to the second air supply pipe 38. The left mounting bracket... The bottom end of the mounting bracket 11 is fixedly connected to a first magnetic ring 34. The upper end of the horizontal plate 10 located below the left mounting bracket 11 is fixedly connected to a first sealing tube 33. The first magnetic ring 34 and the first sealing tube 33 are slidably engaged. The inner wall of the first sealing tube 33 is slidably attached to a first magnetic block 39. The first magnetic block 39 and the first magnetic ring 34 are magnetically connected. The end of the first sealing tube 33 away from the frame 1 is connected to a first air supply pipe 35. The slide plate 23 is provided with an air supply groove 41 that is connected to the first air supply pipe 35. The sliding wheel 24 is provided with an air collection chamber 42 that is connected to the air supply groove 41. The air collection chamber 42 is provided with an oblique nozzle 43.
[0040] In this invention, the second magnetic ring 37 is fixed to the bottom surface of the middle and right mounting brackets 11, the second sealing tube 36 is fixed to the horizontal plate 10, and the second magnetic block 40 slides inside the second sealing tube 36 and is attracted to the second magnetic ring 37 by magnetism. When the middle mounting bracket 11 and the right mounting bracket 11 slide, the second magnetic ring 37 will move back and forth inside the second sealing tube 36 with the second magnetic block 40, squeezing the gas inside the tube. The air inlet end of the second sealing tube 36 faces the heater 12 and can absorb the high-heat gas emitted by the heater 12. After being squeezed, the hot gas is sent to the preheating nozzle 18 through the second air supply pipe 38 and sprayed from the preheating nozzle 18 onto the geomembrane below to preheat the unprocessed geomembrane. The purpose of preheating is to make the molten raw material adhere better to the surface when sprayed onto the geomembrane, making it less likely to fall off, and at the same time to make the rough layer more uniform and improve the quality of the spraying.
[0041] The first magnetic ring 34, the first sealing tube 33, and the first magnetic block 39 are configured in the same way as the second magnetic ring 37. When the left mounting bracket 11 slides, it will cause the first magnetic block 39 to compress the gas in the first sealing tube 33. This gas enters the gas delivery groove 41 in the slide plate 23 through the first gas delivery pipe 35, then flows to the gas collection chamber 42 in the sliding wheel 24, and finally sprays out from the inclined nozzle 43 in the gas collection chamber 42, which sprays the slide groove 21 of the guide rail 16. When the sliding wheel 24 slides in the slide groove 21, it will inevitably get stuck with raw material debris or dust (and some raw material will enter the slide groove 21 during spraying). The gas sprayed from the inclined nozzle 43 can blow away these impurities, prevent impurities from affecting the sliding of the sliding wheel 24, reduce wear, extend the service life of the components, and at the same time ensure the movement accuracy of the mounting bracket 11. Each sliding wheel 24 has two oblique nozzles 43 in its air collection chamber 42, and the two oblique nozzles 43 are at a certain angle, so that the sliding groove 21 can be blown from different directions, making it cleaner and eliminating dead corners.
[0042] Working principle: First, start the drive unit 3 at the lower end of the frame 1. The drive unit 3 is a motor, which will drive the turntable 2 at the upper end to rotate at a constant speed around the center. The first positioning seat 4 on the edge of the turntable 2 rotates with the turntable 2. Because the end of the connecting rod 6 near the frame 1 is rotatably connected to the first positioning seat 4 through the first fixing ring 5, when the turntable 2 rotates, it will pull or push the connecting rod 6 through the first fixing ring 5. The end of the connecting rod 6 away from the frame 1 is rotatably connected to the second positioning seat 8 on the left mounting bracket 11 through the second fixing ring 7. Moreover, the second fixing ring 7 can rotate freely on the second positioning seat 8, so the pushing or pulling force of the connecting rod 6 can be smoothly transmitted to the left mounting bracket 11 without getting stuck due to angle changes. Therefore, the circular motion of the turntable 2 is converted into the reciprocating linear motion of the left mounting bracket 11 on the horizontal plate 10 through the connecting rod 6. The principle is similar to that of the cam mechanism, which can ensure a stable motion frequency and prevent sudden changes in speed.
[0043] When the left mounting frame 11 reciprocates, it will drive the middle mounting frame 11 and the right mounting frame 11 in the same group to move together. Moreover, each group of mounting frames 11 is connected by an extension plate 22, and the connecting plates 9 of adjacent groups are also connected by an extension plate 22. Therefore, all mounting frames 11 will reciprocate synchronously to achieve continuous spraying of wide geomembrane.
[0044] When the mounting bracket 11 moves away from the frame 1, the left mounting bracket 11 will first push the middle mounting bracket 11, and then the middle mounting bracket 11 will push the right mounting bracket 11. During this process, the first spring 17 between the middle mounting bracket 11 and the left mounting bracket 11 will be compressed, and the second spring 26 between the middle mounting bracket 11 and the right mounting bracket 11 will also be compressed. Moreover, the first spring 17 is compressed more severely, which causes the gap between the left mounting bracket 11 and the middle mounting bracket 11 to become smaller, and the gap between the middle mounting bracket 11 and the right mounting bracket 11 to become relatively larger. Meanwhile, the stop block 28 on the bottom surface of the middle mounting bracket 11 will abut against the slider 31, pushing the slider 31 to slide on the fixed rod 29 and compressing the third spring 30. This buffering force will further increase the distance between the middle mounting bracket 11 and the right mounting bracket 11. Therefore, the spray range of the nozzles 15 on the three mounting brackets 11 in the same group will be misaligned due to the different spacing. The overlapping area of the middle and right nozzles 15 will become very small. However, the nozzles 15 of the right mounting bracket 11 and the next group of left mounting brackets 11 will have the same amount of material deposition in the overlapping area as other areas because there is no squeezing from the middle mounting bracket 11. There will be no strip-shaped excessive thickness defect.
[0045] As the mounting frame 11 returns towards the frame 1, the compressed first spring 17 and second spring 26 gradually extend, with the first spring 17 extending more fully. This results in a larger gap between the left and middle mounting frames 11, and a relatively smaller gap between the middle and right mounting frames 11. This change in gap is the opposite of the forward movement, and it also allows the spray range of the nozzles 15 to be misaligned, preventing excessive overlap during the return. The reason for this design of varying gaps is that the coverage areas of each group of three nozzles 15 overlap to a certain extent. Through the extension and contraction of the springs and the buffering of the stop block 28, the overlapping area changes continuously during the reciprocating motion, preventing it from being concentrated in the same position. This ensures that the rough layer thickness and friction coefficient of the entire geomembrane surface are uniform.
[0046] In addition, when the mounting bracket 11 slides, the sliding wheel 24 on the bottom slide plate 23 will slide smoothly in the groove 21 of the guide rail 16. At the same time, the first connecting block 27 at the bottom of the mounting bracket 11 will slide along the guide rod 19. The guide rod 19 plays a guiding role, ensuring that the mounting bracket 11 will not shift left or right, and the movement trajectory of all nozzles 15 can remain straight, further improving the uniformity of spraying.
[0047] While the mounting bracket 11 is reciprocating, the two auxiliary functions of preheating and impurity cleaning will work in tandem, without the need for additional control, achieving automated coordination.
[0048] On one hand, when the middle mounting bracket 11 and the right mounting bracket 11 slide, the second magnetic ring 37 on the bottom surface will move back and forth with the second magnetic block 40 inside the second sealing tube 36, squeezing the high-temperature gas absorbed by the heater 12 inside the tube. This hot gas is sent to the preheating nozzle 18 through the second gas delivery pipe 38, and is evenly sprayed onto the geomembrane below from the preheating nozzle 18 to preheat the unprocessed geomembrane. After preheating, the surface temperature of the geomembrane increases, and the molten polymer raw material can quickly adhere and form after being sprayed on. The adhesion of the rough layer is stronger, and the forming is more uniform, without local peeling or uneven thickness.
[0049] On the other hand, when the left mounting bracket 11 slides, the first magnetic ring 34 on the bottom surface moves back and forth with the first magnetic block 39 inside the first sealing tube 33, compressing the gas inside the tube. This gas flows through the first gas delivery pipe 35 and the gas delivery groove 41 to the gas collection chamber 42 of the sliding wheel 24, and then is sprayed from two angled nozzles 43 at a certain angle into the groove 21 of the guide rail 16. The gas can blow away raw material debris, dust and other impurities in the groove 21, preventing these impurities from affecting the sliding of the sliding wheel 24, reducing the wear of the sliding wheel 24 and the groove 21, and ensuring the movement accuracy of the mounting bracket 11, making the spray trajectory of the nozzle 15 more accurate.
[0050] Throughout the process, the feed chamber 13 continuously supplies polymer raw materials to the injector 14, while the heater 12 remains operational, heating and melting the raw materials into a molten state. Simultaneously with the reciprocating motion of the mounting frame 11, the injector 14 sprays the molten raw materials in granular or linear form from the nozzle 15, evenly coating the preheated geomembrane surface to form a roughened layer. Multiple mounting frames 11 move synchronously via extension plates 22, covering the entire wide geomembrane and achieving continuous production.
[0051] 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.
[0052] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A geomembrane spraying and roughening device, comprising a frame (1) and an outer frame (44), characterized in that: A horizontal plate (10) is fixedly installed on the upper end of the outer frame (44). A mounting bracket (11) is slidably connected to the upper end of the horizontal plate (10). A sliding plate (23) is fixedly connected to the bottom surface of the mounting bracket (11). A sliding wheel (24) is fixedly connected to the bottom end of the sliding plate (23). Guide rails (16) are fixedly connected to both sides of the horizontal plate (10). Sliding grooves (21) are opened on both sides of the guide rails (16). The sliding wheel (24) and the sliding groove (21) slide in cooperation. The upper end of the mounting bracket (11) is fixedly equipped with a heater (12), an injector (14) and a feeding chamber (13). The mounting bracket (11) is provided in multiple sets, with each set having three mounting brackets (11). The upper end of the frame (1) is rotatably connected to a turntable (2), and the turntable (2) is rotatably connected to the left mounting frame (11) via a connecting rod (6); A first positioning seat (4) is fixedly connected to the edge of the turntable (2), and a first fixing ring (5) is rotatably connected to the outer side of the first positioning seat (4). The end of the connecting rod (6) near the frame (1) is fixedly connected to the ring body of the first fixing ring (5). Two mounting plates (32) are fixedly connected to the upper end of the horizontal plate (10), and a fixing rod (29) is fixedly connected between the two mounting plates (32). A slider (31) is slidably connected to the body of the fixing rod (29), and a third spring (30) is fixedly connected between the slider (31) and the mounting plate (32). A stop block (28) that abuts against the slider (31) is fixedly connected to the bottom end of the mounting bracket (11). The upper end of the horizontal plate (10) is fixedly connected to a guide rod (19), the bottom end of the mounting bracket (11) is fixedly connected to a first connecting block (27), the first connecting block (27) and the guide rod (19) are slidably engaged, the side of the horizontal plate (10) is fixedly connected to a fixing plate (20), the guide rail (16) is fixedly installed on the fixing plate (20), the side of the mounting bracket (11) is provided with a side groove (25), and the third spring (30) is sleeved on the rod body of the fixing rod (29); The bottom end of the left mounting bracket (11) is fixedly connected to a first magnetic ring (34), and the upper end of the horizontal plate (10) located below the left mounting bracket (11) is fixedly connected to a first sealing tube (33). The first magnetic ring (34) and the first sealing tube (33) slide together. The inner wall of the first sealing tube (33) is slidably fitted with a first magnetic block (39), and the first magnetic block (39) is magnetically connected to the first magnetic ring (34). The end of the first sealing tube (33) away from the frame (1) is connected to a first air supply pipe (35). The slide plate (23) is provided with an air supply groove (41) connected to the first air supply pipe (35). The sliding wheel (24) is provided with an air collection chamber (42) connected to the air supply groove (41). The air collection chamber (42) is provided with an oblique nozzle (43).
2. The oscillating device based on geomembrane spraying according to claim 1, characterized in that: The output end of the injector (14) is equipped with a nozzle (15). In each set of mounting frames (11), the mounting frame (11) located in the middle is set as the middle mounting frame (11), the mounting frame (11) close to the frame (1) is set as the left mounting frame (11), and the mounting frame (11) far away from the frame (1) is set as the right mounting frame (11). A first spring (17) is provided between the middle mounting frame (11) and the left mounting frame (11), and a second spring (26) is provided between the middle mounting frame (11) and the right mounting frame (11). Each set of mounting frames (11) is connected by an extension plate (22).
3. The oscillating device based on geomembrane spraying according to claim 1, characterized in that: The lower end of the frame (1) is fixedly connected to a drive unit (3), and the output end of the drive unit (3) is fixedly connected to the center of the bottom surface of the turntable (2).
4. The oscillating device based on geomembrane spraying according to claim 1, characterized in that: The upper end of the left mounting bracket (11) is fixedly connected to a connecting plate (9), the upper end of the connecting plate (9) is fixedly connected to a second positioning seat (8), the outer side of the second positioning seat (8) is rotatably connected to a second fixing ring (7), the end of the connecting rod (6) away from the frame (1) is fixedly connected to the ring body of the second fixing ring (7), and each two adjacent connecting plates (9) are connected by an extension plate (22).
5. The oscillating device based on geomembrane spraying according to claim 2, characterized in that: The bottom surfaces of the middle mounting bracket (11) and the right mounting bracket (11) are both fixedly connected with a second magnetic ring (37). The upper ends of the horizontal plate (10) located below the middle mounting bracket (11) and the right mounting bracket (11) are both fixedly connected with a second sealing tube (36). The second magnetic ring (37) and the second sealing tube (36) slide together.
6. The oscillating device based on geomembrane spraying according to claim 5, characterized in that: The inner wall of the second sealing tube (36) is slidably attached to the second magnetic block (40), and the second magnetic block (40) is magnetically connected to the second magnetic ring (37). The end of the second sealing tube (36) away from the frame (1) is connected to the second gas supply tube (38).
7. The oscillating device based on geomembrane spraying according to claim 6, characterized in that: The bottom surface of the horizontal plate (10) is provided with a plurality of preheating nozzles (18), which are connected to the second gas supply pipe (38).
Citation Information
Patent Citations
Online spraying double-side roughening device for high-density polyethylene (HDPE) geomembrane
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