Composite drip irrigation pipe interlayer combined silk pad and manufacturing process and device thereof

Abstract

The invention relates to a composite drip irrigation pipe interlayer combined silk pad and a manufacturing process and device thereof, and belongs to the technical field of geonet pads. The method comprises the specific steps that a drip irrigation pipe sequentially penetrates through an extrusion machine head and a forming mold, meanwhile, molten plastic is injected into the forming mold through the extrusion machine head, a continuous plastic tow is formed, and the drip irrigation pipe falling vertically is located on the inner side of the plastic tow; the plastic tows fall onto a pair of forming rollers after being output through the forming die, the forming rollers pull the plastic tows and apply extrusion force, so that the plastic tows are bonded at multiple points around the drip irrigation pipe, the position of the drip irrigation pipe is locked, and the silk pad containing the drip irrigation pipe interlayer is formed. After being cooled and shaped, the silk pad is cut into a plurality of independent composite drip irrigation pipe interlayer combined silk pads through a trimming and cutting device. The silk mat not only can protect slopes and stabilize sand, reduce water and soil loss and increase the survival rate of vegetation, but also can improve soil stability, enhance the greening effect of side slopes and prolong the service life by providing timely water supplement.

Description

Technical Field

[0001] The invention relates to a composite drip irrigation pipe sandwich composite silk mat, and a manufacturing process and device thereof, belonging to the technical field of geonet mats, and is particularly used in the fields of soil and water conservation, ecological restoration, agricultural irrigation, slope greening, etc. Background Art

[0002] Geogrid slope protection is a new technology that uses active plants combined with engineering materials such as geosynthetics to construct a self-growing protection system on the slope surface, reinforcing the slope through plant growth. Based on the slope's topography, soil quality, and regional climate, the slope surface is covered with a layer of geosynthetics and a variety of plants are planted in specific combinations and spacings. The growth of the plants strengthens the root system and protects the stems and leaves from erosion. Through ecological slope protection technology, a dense vegetation cover forms on the slope surface, forming a tangled root system in the topsoil. This effectively inhibits rainwater runoff from eroding the slope, increases the soil's shear strength, and reduces pore water pressure and the soil's own weight, thereby significantly improving the slope's stability and resistance to erosion.

[0003] Currently, geogrids are widely used in water conservancy slope protection, greening, scour prevention, soil erosion prevention, reinforcement, anti-seepage, garbage disposal, and sewage treatment. Geogrids, which are mostly multi-point bonded mesh structures, have high tensile strength and good ductility. When buried in the soil, they enhance soil stability, prevent soil erosion and surface scour, and reduce soil and water loss. They can be used in highway protection, railway embankments, slopes on both sides of roads, river banks, and exposed mountain areas.

[0004] The traditional irrigation system requires laying the silk mat first and then laying the pipes for watering. The construction time is too long and the irrigation is uneven, which affects the growth of vegetation, resulting in water resource waste and poor soil protection effect. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention aims to combine drip irrigation pipes with geotextile mats. By integrating the drip irrigation pipes into the mats, precise irrigation can be achieved, improving soil stability and promoting healthy plant growth, while reducing labor and construction costs. This mat not only protects slopes and sand, reduces soil erosion, and increases vegetation survival, but also provides timely water replenishment, improving soil stability, enhancing the greening effect of slopes, and extending service life. Furthermore, its simple installation process can significantly reduce construction time and costs.

[0006] The technical solution adopted by the present invention is a manufacturing process of a composite drip irrigation pipe sandwich composite silk mat, comprising the following steps:

[0007] S1: The drip irrigation pipe passes through the extruder head and the forming die in sequence. At the same time, the molten plastic is injected into the forming die through the extruder head to form a continuous plastic filament bundle. The vertically falling drip irrigation pipe is located inside the plastic filament bundle.

[0008] S2: After being output from the forming die, the plastic tow falls onto a pair of forming rollers. The forming rollers pull the plastic tow and apply extrusion force to make the plastic tow adhere to multiple points around the drip irrigation pipe, locking the position of the drip irrigation pipe to form a silk mat containing a drip irrigation pipe interlayer.

[0009] Furthermore, after the silk mat is cooled and shaped, it is cut into a plurality of independent composite drip irrigation pipe sandwich combination silk mats by a trimming and cutting device.

[0010] Furthermore, the cooling and shaping is carried out by water cooling or air cooling.

[0011] The technical solution provided by the present invention is a device used in the manufacturing process of a composite drip irrigation pipe sandwich composite wire mat, comprising an unwinding device, an extruder head, a forming die and a forming roller installed on a frame, wherein:

[0012] Unwinding device, used to release the drip irrigation tube and guide it through the extruder head and forming die;

[0013] Extruder head, used to inject molten plastic;

[0014] A forming die for extruding molten plastic into plastic filaments;

[0015] The forming roller is used to overlap the plastic filament bundle into a net-like fluffy body and wrap the drip irrigation pipe to form a filament mat containing a drip irrigation pipe interlayer.

[0016] Furthermore, the unwinding device is installed above the frame, the extruder head is installed below the frame, the forming mold is fixed on the outlet side of the extruder head, and a pair of forming rollers are arranged parallel and symmetrically below the forming mold and the pair of forming rollers rotate synchronously towards each other.

[0017] Furthermore, a plurality of protrusions are evenly distributed on the surface of one of the forming rollers, and a plurality of grooves are evenly distributed on the surface of the other forming roller. When the pair of forming rollers rotate synchronously towards each other, the contacting protrusions of the forming rollers extend into the grooves and the protrusions and grooves are separated as the forming rollers rotate.

[0018] Furthermore, an independent material cavity is provided on each side of the extruder head, and a pipe hole for the drip irrigation pipe to pass through is provided between the two material cavities.

[0019] Furthermore, a pipe slit for the drip irrigation pipe to pass through is provided in the middle of the forming mold.

[0020] The invention provides a composite drip irrigation pipe sandwich composite wire mat, which comprises a plastic wire bundle and a drip irrigation pipe, wherein the plastic wire bundle covers the drip irrigation pipe.

[0021] The present invention discloses a composite drip irrigation pipe sandwich composite silk mat, and its manufacturing process and device. Compared with the existing technology, the present invention utilizes the thermal bonding properties of plastic filaments and drip irrigation pipes to physically secure the drip irrigation pipes within the silk mat. The drip irrigation pipes are fixed in the silk mat sandwich and can be evenly distributed along the slope or restoration area. The drip irrigation system precisely controls water volume, preventing localized overdrying or overwetting of the soil, maintaining soil moisture, preventing desertification and collapse, promoting root growth, and improving plant survival rates. By embedding the drip irrigation pipes into the geotextile mat sandwich, the "slope protection and sand fixation - precision irrigation" synergistic function is achieved, simplifying the construction process and improving the ecological restoration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 Shown is a schematic diagram of the structure of the device of the present invention;

[0024] Figure 2 Shown Figure 1 Schematic diagram of the middle AA section;

[0025] Figure 3 The figure shows a cross-sectional diagram of a sandwich composite wire mat of a composite drip irrigation pipe;

[0026] Figure 4 Shown Figure 1 A partial enlarged schematic diagram;

[0027] Figure 5 Shown Figure 2 Enlarged schematic diagram of the extruder head and molding die.

[0028] As shown in the figure: 1. Unwinding device; 2. Frame; 3. Extruder head; 4. Forming mold; 5. Forming roller; 6. Cooling and shaping device; 7. Drip irrigation pipe; 8. Plastic filament bundle; 9. Wire pad; 10. Protrusion; 11. Pipe hole; 12. Groove; 13. Left material cavity; 14. Right material cavity; 15. Pipe seam. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In order to further understand the content of the present invention, this technical solution is further described below in conjunction with specific implementation methods.

[0031] Example 1: Figures 1 to 5 As shown, this embodiment provides a manufacturing device for a composite drip irrigation pipe sandwich composite wire mat, comprising an unwinding device 1 mounted on a frame 2, an extruder head 3, a forming die 4 and a forming roller 5, wherein:

[0032] The unwinding device 1 is used to release the drip irrigation tube 7 and guide the drip irrigation tube 7 through the extruder head 3 and the forming die 4;

[0033] The extruder head 3 is used to inject molten plastic. It has two independent chambers on either side: a left chamber 13 and a right chamber 14. These chambers are connected to the forming die 4. A hole 11 is located between the two chambers for the drip irrigation tube 7 to pass through, ensuring it passes centrally along the pre-set path. The two chambers hold different ratios of plastic raw materials, such as polyethylene and polypropylene, depending on the material settings of the silk mat 9.

[0034] The forming die 4 is used to extrude the molten plastic into two groups of plastic filaments 8. A pipe slit 15 is provided in the middle of the forming die 4 for the drip irrigation pipe 7 to pass through. The drip irrigation pipe 7 falls through the unwinding device 1 and passes through the pipe hole 11 and the pipe slit 15 in sequence.

[0035] The forming roller 5 is used to overlap the plastic filaments 8 into a net-like fluffy body and wrap the drip irrigation pipe 7 to form a silk mat 9 containing the drip irrigation pipe 7 interlayer.

[0036] As a specific implementation of this embodiment, the unwinding device 1 is mounted above the frame 2, the extruder head 3 is mounted below the frame 2 via a connecting rod, the forming die 4 is fixed to the outlet side of the extruder head 3, and a pair of forming rollers 5 are arranged parallel and symmetrically below the forming die 4. The pair of forming rollers 5 are driven by a motor to rotate synchronously in opposite directions. The spacing between the pair of forming rollers 5 is adjusted according to the desired thickness of the wire mat 9.

[0037] To facilitate understanding of this solution for those skilled in the art, a pair of forming rollers 5 are provided, one on the left and one on the right. Several protrusions 10 are evenly distributed on the surface of the left forming roller 5, while several grooves 12 are evenly distributed on the surface of the right forming roller 5. Each protrusion 10 corresponds to a corresponding groove 12. When the left and right forming rollers 5 rotate synchronously toward each other, the contacting protrusions 10 of the two forming rollers 5 extend into the grooves 12 and separate from the grooves 12 as the forming rollers 5 rotate. By designing the protrusions 10 and grooves 12, the gaps between the plastic filaments 8 during multi-point bonding are increased, which in turn increases the space between the meshes of the silk mat 9, allowing more soil and grass seeds to enter the meshes.

[0038] A cooling and shaping device 6 is further provided below the forming roller 5. Specifically, a water tank is provided below the forming roller 5. Cold water flows in the water tank. The silk mat 9 containing the drip irrigation pipe 7 interlayer is cooled and shaped after entering the water to form a composite drip irrigation pipe 7 interlayer combined silk mat 9.

[0039] Example 2: Figure 3 As shown, this embodiment provides a composite drip irrigation pipe sandwich composite wire mat, comprising a plastic filament bundle 8 and a drip irrigation pipe 7. The plastic filament bundle 8 encases the drip irrigation pipe 7. The plastic filament bundle 8 surrounding the drip irrigation pipe 7 is bonded at multiple points to form a sandwich structure, thereby forming a wire mat 9 containing the drip irrigation pipe 7. The wire mat 9 extends from both ends of the drip irrigation pipe 7 to facilitate irrigation. The wire mat 9 is provided with a plurality of holes for filling with soil and grass seeds.

[0040] Example 3: Figures 1 to 5 As shown, this embodiment also provides a manufacturing process of a composite drip irrigation pipe sandwich composite wire mat, specifically:

[0041] S1: The rolled drip irrigation pipe 7 is placed in the unwinding device 1. The unwinding device 1 rotates so that the drip irrigation pipe 7 passes through the extruder head 3 and the forming die 4 in sequence and hangs down between the two forming rollers 5. At the same time, the molten plastic is injected into the forming die 4 through the extruder head 3 to form a continuous plastic filament 8. The vertically falling drip irrigation pipe 7 is located inside the plastic filament 8.

[0042] S2: After the plastic tows 8 are output from the forming die 4, the two groups of plastic tows 8 perform free fall motion vertically downward and fall onto the roller surfaces of a pair of forming rollers 5. The forming rollers 5 pull the plastic tows 8 and apply extrusion force, so that the plastic tows 8 are bonded at multiple points around the drip irrigation pipe 7, forming overlapping net-like fluffy bodies, locking the position of the drip irrigation pipe 7, and forming a wire mat 9 containing the drip irrigation pipe 7 interlayer. After the wire mat 9 is cooled and shaped, it is cut into a plurality of independent composite drip irrigation pipe 7 interlayer combined wire mats 9 by a trimming and cutting device.

[0043] The cooling and shaping is carried out by water cooling or air cooling.

[0044] After the process of the present invention is completed, the drip irrigation pipe 7 is coated with the plastic filament bundle 8 to form a finished product. In actual use, the composite drip irrigation pipe 7 sandwich composite wire mat 9 is laid on the sandy slope, filled with topsoil (thickness 5cm) and sown with grass seeds (Bermudagrass, density 10g / m 2 ), soil and grass seeds enter the mesh inside the silk mat 9, and a solenoid valve is set at the entrance of the drip irrigation pipe 7. The solenoid valve is jointly controlled by the PLC controller to provide water at a regular and quantitative time to ensure the moisture level of the soil and promote the growth of the roots of green plants.

[0045] This invention utilizes a modular composite product of geotextile mats and drip irrigation pipes, eliminating the need for traditional irrigation systems. This simplifies construction and reduces costs. The composite drip irrigation pipes (7) timely replenish water to the reinforced soil, precisely controlling the amount of water for uniform irrigation, maintaining soil moisture and preventing soil from becoming desertified and collapsing due to excessive drying. This facilitates soil reinforcement and repair, improves the soil environment, promotes plant root growth, increases plant survival rates, and accelerates the recovery and improvement of the ecological environment.

[0046] Example 1: Figures 1 to 5 As shown, this embodiment provides a manufacturing device for a composite drip irrigation pipe sandwich composite wire mat, comprising an unwinding device, an extruder head, a forming die and a forming roller mounted on a frame, wherein:

[0047] Unwinding device, used to release the drip irrigation tube and guide it through the extruder head and forming die;

[0048] The extruder head is used to inject molten plastic. It has two independent chambers on either side, one on the left and one on the right, which are connected to the molding die. A hole for the drip irrigation line is located between the two chambers, ensuring it passes centrally along the pre-set path. Each chamber holds different ratios of plastic raw materials, such as polyethylene and polypropylene, depending on the material of the silk mat.

[0049] The forming die is used to extrude molten plastic into two groups of plastic filaments. A pipe slit is provided in the middle of the forming die for the drip irrigation pipe to pass through. The drip irrigation pipe falls through the pipe hole and the pipe slit in sequence through the unwinding device.

[0050] The forming roller is used to overlap the plastic filament bundle into a net-like fluffy body and wrap the drip irrigation pipe to form a filament mat containing a drip irrigation pipe interlayer.

[0051] In one specific embodiment of this embodiment, the unwinding device is mounted above the frame, the extruder head is mounted below the frame via a connecting rod, the forming die is fixed to the outlet side of the extruder head, and a pair of forming rollers are arranged parallel and symmetrically below the forming die. The pair of forming rollers are driven by a motor to rotate synchronously in opposite directions. The spacing between the pair of forming rollers is adjusted according to the desired thickness of the wire mat.

[0052] To facilitate understanding for those skilled in the art, a pair of forming rollers, one left and one right, are designed. The left roller has several protrusions evenly distributed on its surface, while the right roller has several grooves evenly distributed on its surface. Each protrusion corresponds to a corresponding groove. When the left and right rollers rotate synchronously toward each other, the contacting protrusions of the two rollers extend into the grooves and separate as the rollers rotate. This design of protrusions and grooves allows for greater gaps between the plastic filaments during multi-point bonding, resulting in larger mesh openings in the silk mat, allowing more soil and grass seeds to enter the mesh.

[0053] A cooling and shaping device is further provided below the forming roller. Specifically, a water tank is provided below the forming roller. Cold water flows in the water tank. The silk mat containing the drip irrigation pipe interlayer is cooled and shaped after entering the water to form a composite drip irrigation pipe interlayer combined silk mat.

[0054] Example 2: Figure 3 As shown, this embodiment provides a composite drip irrigation pipe sandwich composite wire mat, comprising a plastic filament bundle and a drip irrigation pipe. The plastic filament bundle encases the drip irrigation pipe. The plastic filament bundle surrounding the drip irrigation pipe is bonded at multiple points to form a sandwich structure, thereby forming a wire mat containing the drip irrigation pipe sandwich. The wire mat extends from both ends of the drip irrigation pipe to facilitate irrigation. The wire mat is provided with a plurality of holes for filling with soil and grass seeds.

[0055] Example 3: Figures 1 to 5 As shown, this embodiment also provides a manufacturing process of a composite drip irrigation pipe sandwich composite wire mat, specifically:

[0056] S1: The rolled drip irrigation pipe product is placed in the unwinding device. The unwinding device rotates so that the drip irrigation pipe passes through the extruder head and the forming mold in sequence and hangs down between the two forming rollers. At the same time, the molten plastic is injected into the forming mold through the extruder head to form a continuous plastic filament. The vertically falling drip irrigation pipe is located inside the plastic filament.

[0057] S2: After the plastic tows are output from the forming die, the two groups of plastic tows fall vertically downward onto a pair of forming rollers. The forming rollers pull the plastic tows and apply extrusion force, causing the plastic tows to adhere at multiple points around the drip irrigation pipe, forming a overlapping net-like fluffy body, locking the drip irrigation pipe in place and forming a mat containing the drip irrigation pipe interlayer. After the mat is cooled and formed, it is cut into several independent composite drip irrigation pipe interlayer composite mats by a trimming device.

[0058] The cooling and shaping is carried out by water cooling or air cooling.

[0059] After the process of the present invention is completed, the drip irrigation pipe is coated with plastic filaments to form a finished product. In actual use, the composite drip irrigation pipe sandwich composite wire mat is laid on the sandy slope, filled with topsoil (thickness 5cm) and sown with grass seeds (Bermudagrass, density 10g / m 2 ), soil and grass seeds enter the mesh inside the silk mat, and a solenoid valve is set at the entrance of the drip irrigation pipe. The solenoid valve is jointly controlled by the PLC controller to provide water at a regular and quantitative time to ensure the moisture level of the soil and promote the growth of the green plant roots.

[0060] This modular composite system, combining geotextile mats and drip irrigation pipes, eliminates the need for traditional irrigation systems, simplifies construction, and reduces costs. The composite drip irrigation pipes replenish water to the reinforced soil in a timely manner, precisely controlling the amount of water for even irrigation. This maintains soil moisture and prevents soil from becoming desertified and collapsing due to excessive drying. This facilitates soil reinforcement and repair, improves the soil environment, promotes plant root growth, increases plant survival rates, and accelerates the recovery and improvement of the ecological environment.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. Composite drip irrigation pipe sandwich composite wire mat, characterized by: The invention comprises a plastic filament bundle (8) and a drip irrigation pipe (7), wherein the plastic filament bundle (8) covers the drip irrigation pipe (7).

2. The manufacturing device of composite drip irrigation pipe sandwich composite wire mat is characterized in that: The invention comprises an unwinding device (1), an extruder head (3), a forming die (4) and a forming roller (5) installed on a frame (2), wherein: An unwinding device (1) is used to release the drip irrigation tube (7) and guide the drip irrigation tube (7) through the extruder head (3) and the forming die (4); an extruder head (3) for injecting molten plastic; a forming die (4) for extruding molten plastic into plastic filaments (8); The forming roller (5) is used for overlapping the plastic filament bundle (8) into a net-like fluffy body and wrapping the drip irrigation pipe (7) to form a silk mat (9) containing the drip irrigation pipe (7) interlayer.

3. The manufacturing device of the composite drip irrigation pipe sandwich composite wire mat according to claim 2, characterized in that: The unwinding device (1) is installed above the frame (2), the extruder head (3) is installed below the frame (2), the forming die (4) is fixed on the outlet side of the extruder head (3), and a pair of forming rollers (5) are arranged parallel and symmetrically below the forming die (4), and the pair of forming rollers (5) rotate synchronously in opposite directions.

4. The manufacturing device of the composite drip irrigation pipe sandwich composite wire mat according to claim 3, characterized in that: A plurality of protrusions (10) are evenly distributed on the surface of one of the forming rollers (5), and a plurality of grooves (12) are evenly distributed on the surface of the other forming roller (5). When the pair of forming rollers (5) rotate synchronously in opposite directions, the protrusions (10) of the forming rollers (5) in contact with each other extend into the grooves (12) and the protrusions (10) and the grooves (12) are separated as the forming rollers (5) rotate.

5. The manufacturing device of the composite drip irrigation pipe sandwich composite wire mat according to claim 2, characterized in that: An independent material cavity is provided on each side of the extruder head (3), and a pipe hole (11) for the drip irrigation pipe (7) to pass through is provided between the two material cavities.

6. The manufacturing device of the composite drip irrigation pipe sandwich composite wire mat according to claim 2, characterized in that: A pipe slit (15) for the drip irrigation pipe (7) to pass through is provided in the middle of the forming mold (4).

7. The manufacturing process of the composite drip irrigation pipe sandwich composite wire mat is characterized by: The specific steps are as follows: S1: The drip irrigation pipe (7) passes through the extruder head (3) and the forming die (4) in sequence. At the same time, the molten plastic is injected into the forming die (4) through the extruder head (3) to form a continuous plastic filament bundle (8). The drip irrigation pipe (7) that falls vertically is located inside the plastic filament bundle (8); S2: After being output from the forming die (4), the plastic filament bundle (8) falls onto a pair of forming rollers (5). The forming rollers (5) pull the plastic filament bundle (8) and apply extrusion force, so that the plastic filament bundle (8) is bonded at multiple points around the drip irrigation pipe (7), locking the position of the drip irrigation pipe (7) to form a silk mat (9) containing a sandwich layer of the drip irrigation pipe (7).

8. The manufacturing process of the composite drip irrigation pipe sandwich composite wire mat according to claim 7, characterized in that: After the silk mat (9) is cooled and shaped, it is cut into a plurality of independent composite drip irrigation pipe (7) sandwich composite silk mats (9) by a trimming and cutting device.

9. The manufacturing process of the composite drip irrigation pipe sandwich composite wire mat according to claim 8, characterized in that: Cooling and shaping are carried out by water cooling or air cooling.

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