A composite geotextile drainage net automatic forming device

Abstract

The present invention relates to the technical field of hot-melt processing equipment for geotextile drainage nets, and specifically to an automatic forming device for a composite geotextile drainage net, the device comprising a frame, a hot-melt mechanism for a middle-layer drainage net, a front transmission mechanism, a melting glue dispensing device, a pressing mechanism, and a rear transmission mechanism. The adhesive material is coated at a specific position by a melting glue dispensing device, and then a gripping protrusion and a leakage hole are formed by a pressing mechanism, which significantly enhances the bonding strength between the materials and improves the gripping performance and drainage efficiency of the drainage net. The specially designed intermittent pressing columns cooperate with the forming holes to ensure that a stable gripping structure is formed on the surface of the composite drainage net, while optimizing the drainage path and reducing the risk of clogging by fine particles. The present invention is suitable for application scenarios in civil engineering that have high requirements for composite geotextile drainage nets.

Description

Technical Field

[0001] The invention relates to the technical field of hot-melt processing equipment for geotextile drainage net materials, and in particular to an automatic forming device for a composite geotextile drainage net. Background Art

[0002] The information disclosed in the background of the invention is only intended to enhance the understanding of the overall background of the invention and should not be necessarily regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art.

[0003] Geosynthetic drainage net is a material widely used in civil engineering, mainly used to improve soil drainage performance, prevent soil erosion, and improve the stability of the foundation. This material is usually made of a variety of materials, such as plastic, fiber, etc., with good water permeability and certain strength, which can effectively drain water from the soil and prevent soil particles from being lost with water.

[0004] During the use of existing composite geotextile drainage nets, the bonding strength is relatively low because the layers of materials are mainly bonded by hot melt. This leads to easy delamination under external pressure (such as vehicle rolling and construction workers stepping on them). Especially during long-term use, the bonding performance of the material will further decline, affecting the construction quality and the stability of the project.

[0005] Moreover, after the traditional composite geotextile drainage net is laid, due to its flat surface, the friction between it and the soil or other materials is small, and the grip performance is weak. This not only easily leads to the sliding and displacement of the material, but also affects its stability in complex terrains such as slopes and slopes, increasing engineering risks. At the same time, although the existing composite geotextile drainage net has a certain drainage function, due to its flat surface and fewer drainage channels, it is easy to be blocked by fine particles, resulting in low drainage efficiency and limited drainage performance. Summary of the invention

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide an automatic forming device for a composite geotextile drainage net, aiming to solve the problems existing in the prior art such as insufficient bonding strength, weak grip performance, limited drainage performance, insufficient durability and great construction difficulty, and to improve the bonding strength, grip performance, drainage performance, durability and construction convenience of the material.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] An automatic forming device for composite geotextile drainage nets comprises a frame, on which a middle-layer drainage net hot-melt mechanism, a front transmission mechanism, a melting glue dispensing device, a pressing mechanism and a rear transmission mechanism are arranged in sequence according to the feeding direction; the front transmission mechanism is used to transmit the middle-layer drainage net and the upper and lower-layer drainage nets, and the rear transmission mechanism is used to transmit the composite drainage net;

[0009] The melt dispensing device includes more than two automatic dispensing machine heads;

[0010] The laminating mechanism comprises an upper laminating roller and a lower laminating roller, the lower laminating roller is provided with an intermittent extension mechanism, and the upper laminating roller is provided with a forming hole adapted to the intermittent extension mechanism;

[0011] The intermittent extension mechanism includes a central shaft body arranged in the lower pressing roller, the central shaft body includes a central shaft and a first cam body, the first cam body is fixedly mounted on the central shaft, and the central shaft is mounted on the frame;

[0012] A rotatable outer roller shell is sleeved on the outer side of the central shaft, a mounting seat is arranged inside the outer roller shell, a projection hole is opened on the mounting seat along the axial direction of the outer roller shell, and an intermittent pressing column adapted to the forming hole is installed in the projection hole;

[0013] The intermittent pressing column is provided with a limit block, and the extension hole is provided with a limit groove adapted to the limit block;

[0014] A rolling head matched with the first cam body is installed at one end of the intermittent pressing column located in the outer roller shell, and a return spring is matched and installed between the rolling head and the mounting seat;

[0015] Under the cooperation of the intermittent extension mechanism and the molten glue dispensing device, the intermittent pressing column presses the composite drainage net into the forming hole at a position that corresponds exactly to the position where the automatic glue dispensing machine head dispenses glue; under the cooperation of the intermittent pressing column and the forming hole, the composite drainage net is formed with a plurality of gripping protrusions, and each of the gripping protrusions is formed with a water leakage hole;

[0016] The rear transmission mechanism comprises an upper transmission roller and a lower transmission roller, wherein the upper transmission roller is provided with a channel corresponding to the gripping protrusion.

[0017] Preferably, an intermittent glue coating mechanism for upper and lower material layers is provided between the front transmission mechanism and the melt glue dispensing device;

[0018] The intermittent gluing mechanism for the upper and lower material layers includes a rubber cylinder, a rotating chamber is provided in the rubber cylinder, the rotating chamber is filled with glue, a driving shaft is also concentrically installed in the rotating chamber, a cam brush is fixedly installed on the driving shaft, and the rubber cylinder is provided with a gluing port above the rotating chamber, and the gluing port is equipped with a gluing brush roller that intermittently contacts and cooperates with the cam brush.

[0019] Preferably, the cam brush comprises a second cam body, and an intermittent brush is provided at a raised end of the second cam body.

[0020] Preferably, the forming hole is a tapered hole, and the protruding end of the intermittent pressing column is set as a pointed end.

[0021] Preferably, one end of the rolling head that cooperates with the first cam body is set as a spherical surface, and the matching surface of the first cam body is set as a streamlined matching surface.

[0022] Preferably, the central shaft is fixedly mounted on the frame, and sleeves which fit with the central shaft are arranged at both ends of the outer roller shell.

[0023] Preferably, the hot-melt mechanism of the middle-layer drainage net comprises a box body mounted on a frame, and a conveying roller and a heating assembly are installed inside the box body.

[0024] Preferably, the front transmission mechanism comprises a middle-layer drainage net transmission roller, an upper-layer drainage net transmission roller and a lower-layer drainage net transmission roller.

[0025] Preferably, a stripping guide mechanism is provided on the side of the laminating mechanism close to the rear transmission mechanism, and the stripping guide mechanism includes a stripping roller, and the stripping roller is provided with a channel corresponding to the rear transmission mechanism.

[0026] The present invention has at least the following beneficial effects:

[0027] The present invention can form a stronger bond between the various layers of materials of the composite geodrainage net through the coordinated work of the melt dispensing device and the pressing mechanism. In particular, by applying adhesive materials such as glue or molten plastic at a specific position, and pressing and molding the whole and part at this position with the cooperation of intermittent pressing columns and forming holes, the local pressing forms the gripping protrusions and the leaking holes, and the glue and the formed gripping protrusions work together to significantly improve the bonding strength between the materials, effectively prevent the delamination phenomenon under external pressure, and improve the durability of the geodrainage net.

[0028] The gripping protrusions formed in the present invention increase the friction between the material and the ground or other materials, greatly reduce the risk of sliding and displacement of the material, and improve the gripping performance, especially in applications on complex terrains such as slopes and inclined surfaces. The difficulty in the construction process is reduced and the construction convenience is improved.

[0029] The present invention forms a gripping protrusion and a water leakage hole. By forming a water leakage hole inside the gripping protrusion, not only the fluidity of water and drainage efficiency are improved, but also fine particles can be effectively prevented from blocking the drainage channel, the drainage path is optimized, and the long-term effectiveness of the drainage system is ensured. This helps to maintain the stability and safety of the engineering area. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the internal structure of the pressing mechanism;

[0032] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0033] Figure 4 It is a schematic diagram of the forming matching structure of the pressing mechanism;

[0034] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0035] Figure 6 It is a schematic diagram of the matching structure of the rear transmission mechanism;

[0036] Figure 7 This is a schematic diagram of the installation position of the stripping guide mechanism;

[0037] Figure 8 It is a schematic diagram of the internal structure of the intermittent gluing mechanism for the upper and lower material layers.

[0038] The reference numerals are as follows:

[0039] 100, frame; 200, hot-melt mechanism for middle-layer drainage net; 210, box; 220, conveying roller; 230, heating assembly; 300, front conveying mechanism; 310, conveying roller for middle-layer drainage net; 320, conveying roller for upper-layer drainage net; 330, conveying roller for lower-layer drainage net; 400, intermittent gluing mechanism for upper and lower material layers; 410, glue cylinder; 411, rotary chamber; 412, gluing port; 420, driving shaft; 421, second cam body; 422, intermittent brush; 430, gluing brush roller; 500, melting glue dispensing device; 600, pressing mechanism; 610, upper pressing Closing roller; 611, channel; 612, mounting shaft; 613, forming hole; 620, lower pressing roller; 621, center shaft; 622, first cam body; 623, sleeve; 624, intermittent extension mechanism; 6241, rolling head; 6242, intermittent pressing column; 6243, return spring; 6244, mounting seat; 6245, extension hole; 6246, limiting groove; 700, rear transmission mechanism; 710, upper transmission roller; 720, lower transmission roller; 800, composite drainage net; 810, gripping protrusion; 820, leakage hole; 900, stripping guide mechanism. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0041] Figures 1 to 8 An automatic forming device for a composite geotextile drainage net is presented, comprising a frame 100, on which a middle-layer drainage net hot-melt mechanism 200, a front transmission mechanism 300, a melting glue dispensing device 500, a pressing mechanism 600 and a rear transmission mechanism 700 are sequentially arranged according to a feeding direction.

[0042] The middle-layer drainage net hot-melt mechanism 200 includes a box body 210 installed on the frame 100 , and a conveying roller 220 and a heating component 230 are installed inside the box body 210 .

[0043] The front transmission mechanism 300 includes a middle-layer drainage net transmission roller 310, an upper-layer drainage net transmission roller 320 and a lower-layer drainage net transmission roller 330 installed on the first column, and is used to transmit the middle-layer drainage net and the upper and lower-layer drainage nets.

[0044] The melt dispensing device 500 includes more than two automatic dispensing heads installed on a gantry, into which the corresponding glue can be injected, or molten raw materials with certain adhesion and good bonding with the middle-layer drainage net after hot melting can be injected, such as molten plastic, etc. It should be noted that the molten raw materials need to be insulated according to the situation during the transmission process, which will not be elaborated here.

[0045] The laminating mechanism 600 includes an upper laminating roller 610 and a lower laminating roller 620 installed on the second column, the lower laminating roller 620 is provided with an intermittent extending mechanism 624, the upper laminating roller 610 is provided with a forming hole 613 adapted to the intermittent extending mechanism 624, and mounting shafts 612 are provided at both ends of the upper laminating roller 610.

[0046] The intermittent extension mechanism 624 includes a central axis body arranged in the lower pressing roller 620 , and the central axis body includes a central shaft 621 and a first cam body 622 . The first cam body 622 is fixedly mounted on the central shaft 621 , and the central shaft 621 is mounted on the frame 100 .

[0047] A rotatable outer roller shell is sleeved on the outer side of the central axis 621, and a mounting seat 6244 is arranged inside the outer roller shell. The mounting seat 6244 has an extension hole 6245 along the axial direction of the outer roller shell, and an intermittent pressing column 6242 adapted to the forming hole 613 is installed in the extension hole 6245.

[0048] The intermittent pressing column 6242 is provided with a limiting block, and the extending hole 6245 is provided with a limiting groove 6246 adapted to the limiting block.

[0049] A rolling head 6241 cooperating with the first cam body 622 is installed at one end of the intermittent pressing column 6242 located in the outer roller shell, and a return spring 6243 is installed between the rolling head 6241 and the mounting seat 6244 .

[0050] With the cooperation of the intermittent extension mechanism 624 and the molten glue dispensing device 500, the intermittent pressing column 6242 presses the composite drainage net 800 into the forming hole 613 at a position that corresponds exactly to the position where the automatic glue dispensing machine head glues; with the cooperation of the intermittent pressing column 6242 and the forming hole 613, the composite drainage net 800 is formed with a plurality of gripping protrusions 810, and each of the gripping protrusions 810 is formed with a leakage hole 820.

[0051] The rear transmission mechanism 700 includes an upper transmission roller 710 and a lower transmission roller 720 installed on a third column, and the rear transmission mechanism 700 is used to transmit the composite drainage net 800; wherein the upper transmission roller 710 is provided with a channel 611 corresponding to the gripping protrusion 810, which is used to cooperate with the composite drainage net 800 provided with the gripping protrusion 810 to transmit through.

[0052] Regardless of whether the raw material is in a coated state or a molten state, it is pressed by the pressing mechanism 600 at the dot-coated position and partially formed by the intermittent extension mechanism 624, thereby forming a gripping protrusion 810 and forming a water leakage hole 820 in the gripping protrusion 810;

[0053] Among them, the gripping protrusions 810 can improve the gripping performance, significantly increase the friction between the material and the soil or other materials, prevent sliding and displacement, and improve the stability in complex terrains such as slopes and inclined surfaces, thereby forming a stable contact surface and reducing displacement and delamination caused by external forces; at the same time, since it is a locally pressed protrusion, the strength performance of the material is improved in structure, and the protrusion increases the local strength, further enhancing the gripping stability. In turn, the durability and construction convenience of the composite drainage net 800 are improved.

[0054] On the other hand, while forming the gripping protrusion 810 and the leakage hole 820, the gripping protrusion 810 itself will have a depression on the other side, and there is a leakage hole 820 at the bottom of the depression, which can improve the fluidity and drainage efficiency of water and reduce water accumulation; at the same time, it can prevent the deposition of fine particles, reduce the blockage of the drainage channel 611, and maintain long-term effective drainage performance.

[0055] In addition, the formation of the gripping protrusions 810 is also beneficial to improving the bonding strength of the material, and, under the synergistic effect of the gluing and the formation of the gripping protrusions 810, the bonding strength of the composite drainage net 800 is made higher.

[0056] The forming hole 613 is a tapered hole with a large opening, which is conducive to the cooperation with the intermittent pressing column 6242. The protruding end of the intermittent pressing column 6242 is set as a pointed end, which is convenient for forming the leakage hole 820 during the pressing process.

[0057] One end of the rolling head 6241 that cooperates with the first cam body 622 is set to a spherical surface, and the mating surface of the first cam body 622 is set to a streamlined mating surface, so that the cooperation between the rolling head 6241 and the first cam body 622 is smoother. The specific structure of the first cam body 622 can be processed according to the principle of the cam mechanism, and it is easy to achieve the requirements of this solution. This should be understood by those skilled in the art and will not be elaborated here.

[0058] The central axis body can be fixed and only rotated by the outer roller shell. At this time, the central axis 621 is fixedly installed on the frame 100, and sleeves 623 that fit with the central axis 621 are provided at both ends of the outer roller shell.

[0059] Of course, the central axis body can also be driven to rotate by a corresponding driving device, and both the central axis body and the outer roller shell body rotate. However, it is necessary to pay attention to adjusting the relative rotation speed of the two to achieve dynamic adjustment of the intermittent mechanism.

[0060] In order to facilitate the removal of materials and prevent the composite drainage net from following the intermittent pressing columns 6242, a removal guide mechanism 900 is provided on the side of the pressing mechanism 600 close to the rear transmission mechanism 700. The removal guide mechanism 900 includes a removal roller, so that the composite drainage net 800 can be removed promptly and smoothly after being pressed by the pressing mechanism 600. Similarly, the removal roller is provided with a channel 611 corresponding to the rear transmission mechanism 700.

[0061] In order to further improve the bonding strength of the material, in another embodiment, an upper and lower material layer intermittent glue coating mechanism 400 is further provided between the front transmission mechanism 300 and the melt dispensing device 500 to achieve intermittent glue coating between the automatic dispensing machine heads;

[0062] The specific structure is as follows: the intermittent gluing mechanism 400 for the upper and lower material layers includes a rubber cylinder 410 installed on the fourth column, a rotating chamber 411 is provided in the rubber cylinder 410, the rotating chamber 411 is filled with glue, a driving shaft 420 is also concentrically installed in the rotating chamber 411, a cam brush is fixedly installed on the driving shaft 420, and the rubber cylinder 410 is provided with a gluing port 412 above the rotating chamber 411, and the gluing port 412 is installed with a gluing brush roller 430 which intermittently contacts and cooperates with the cam brush.

[0063] The cam brush comprises a second cam body 421 , and an intermittent brush 422 is provided at a protruding end of the second cam body 421 .

[0064] The glue coating brush roller 430 can rotate freely or be driven to rotate by a corresponding driving device. The direction of rotation is consistent with the feeding transmission direction, and can also play a role in auxiliary transmission.

[0065] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0066] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0067] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic forming device for composite geotextile drainage net, comprising a frame, on which a middle-layer drainage net hot-melt mechanism, a front transmission mechanism, a melting glue dispensing device, a pressing mechanism and a rear transmission mechanism are arranged in sequence according to the feeding direction; the front transmission mechanism is used to transmit the middle-layer drainage net and the upper and lower drainage nets, and the rear transmission mechanism is used to transmit the composite drainage net; characterized in that: The melt dispensing device includes more than two automatic dispensing machine heads; The laminating mechanism comprises an upper laminating roller and a lower laminating roller, the lower laminating roller is provided with an intermittent extension mechanism, and the upper laminating roller is provided with a forming hole adapted to the intermittent extension mechanism; The intermittent extension mechanism includes a central shaft body arranged in the lower pressing roller, the central shaft body includes a central shaft and a first cam body, the first cam body is fixedly mounted on the central shaft, and the central shaft is mounted on the frame; A rotatable outer roller shell is sleeved on the outer side of the central shaft, a mounting seat is arranged inside the outer roller shell, a projection hole is opened on the mounting seat along the axial direction of the outer roller shell, and an intermittent pressing column adapted to the forming hole is installed in the projection hole; The intermittent pressing column is provided with a limit block, and the extension hole is provided with a limit groove adapted to the limit block; A rolling head matched with the first cam body is installed at one end of the intermittent pressing column located in the outer roller shell, and a return spring is matched and installed between the rolling head and the mounting seat; Under the cooperation of the intermittent extension mechanism and the molten glue dispensing device, the intermittent pressing column presses the composite drainage net into the forming hole at a position that corresponds exactly to the position where the automatic glue dispensing machine head dispenses glue; under the cooperation of the intermittent pressing column and the forming hole, the composite drainage net is formed with a plurality of gripping protrusions, and each of the gripping protrusions is formed with a water leakage hole; The rear transmission mechanism comprises an upper transmission roller and a lower transmission roller, wherein the upper transmission roller is provided with a channel corresponding to the gripping protrusion; An intermittent glue coating mechanism for upper and lower material layers is also provided between the front transmission mechanism and the melt glue dispensing device; The intermittent gluing mechanism for the upper and lower material layers comprises a rubber cylinder, a rotating chamber is provided in the rubber cylinder, the rotating chamber is filled with glue, a driving shaft is also concentrically installed in the rotating chamber, a cam brush is fixedly installed on the driving shaft, the rubber cylinder is provided with a gluing port above the rotating chamber, and a gluing brush roller intermittently contacting and cooperating with the cam brush is installed in the gluing port; The cam brush comprises a second cam body, and an intermittent brush is provided at a protruding end of the second cam body.

2. The automatic forming device for composite geotextile drainage net according to claim 1, characterized in that: The forming hole is a tapered hole, and the protruding end of the intermittent pressing column is set as a pointed end.

3. The automatic forming device for composite geotextile drainage net according to claim 1, characterized in that: One end of the rolling head that cooperates with the first cam body is set as a spherical surface, and the matching surface of the first cam body is set as a streamlined matching surface.

4. The automatic forming device for composite geotextile drainage net according to claim 1, characterized in that: The central shaft is fixedly mounted on the frame, and sleeves which fit the central shaft are arranged at both ends of the outer roller shell.

5. The automatic forming device for composite geotextile drainage net according to claim 1, characterized in that: The hot-melt mechanism of the middle-layer drainage net comprises a box body installed on a frame, and a conveying roller and a heating component are installed inside the box body.

6. The automatic forming device for composite geotextile drainage net according to claim 1, characterized in that: The front transmission mechanism comprises a middle-layer drainage net transmission roller, an upper-layer drainage net transmission roller and a lower-layer drainage net transmission roller.

7. The automatic forming device for composite geotextile drainage net according to any one of claims 1 to 6, characterized in that: A stripping guide mechanism is provided on one side of the pressing mechanism close to the rear transmission mechanism. The stripping guide mechanism comprises a stripping roller, and the stripping roller is provided with a channel corresponding to the rear transmission mechanism.

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