Three-dimensional geonet pad one-time forming equipment
Through the combined equipment of extruder, spinneret and drafting roller, the molten silk threads are interwoven to form a three-dimensional mesh mat, which solves the problems of weak welding and complex process, and realizes the efficient production of three-dimensional geotextile mats with cost and energy saving.
Patent Information
- Application Number
- CN202422831957.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-20
AI Technical Summary
In the existing production process of three-dimensional geogrids, the welding is not strong and the process is complicated, resulting in material waste and high energy consumption.
A combination of extruder, spinneret and drafting roller is used to form a three-dimensional mesh mat through melt bonding, avoiding heating and welding, and using molten silk threads to interweave and cool to shape.
It achieves efficient use of materials, reduces costs and energy consumption, simplifies the process and makes the nodes more solid.
Smart Images
Figure CN223478271U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of geonet manufacturing technology, and specifically relates to a one-time molding equipment for three-dimensional geonets. Background Technology
[0002] Geonets are mainly used to protect vegetation and prevent soil erosion. They are used for slope protection and planting grass along highways, railways, airports, and river channels, as well as for landscaping and desert soil stabilization. Three-dimensional geonets are generally composed of stretched and flat geonets, which are heated and spot-welded to form a three-dimensional multi-layered mesh structure. The process requires an extruder to extrude flat geonets, while simultaneously extruding another flat geonet, which is then stretched into a biaxial stretched geonet. The extruded flat and stretched geonets are placed on a three-dimensional geonet forming machine, where the flat geonet is heated to achieve three-dimensional shaping. The geonets are then spot-welded or sewn together. The resulting three-dimensional geonets have a certain bubble height, but due to the need for spot welding, the process is prone to weld penetration or weak welds, and the manufacturing process is overly complex. Utility Model Content
[0003] To overcome the shortcomings of the existing technology, this utility model provides a one-time forming equipment for three-dimensional geonet mats.
[0004] This utility model is achieved through the following technical solution:
[0005] A one-time forming device for three-dimensional geonet mats includes an extruder with a die head connected to the end of the extruder. The device is characterized in that: an unwinding roller is provided below the extruder, a slidable spinneret is connected below the die head, the spinneret has a plurality of uniformly arranged spinneret holes, a cooling water tank is provided behind the unwinding roller, and a drawing roller is provided behind the cooling water tank.
[0006] The spinneret is located in a slot at the bottom of the die head.
[0007] A pin is installed at the end of the spinneret, and the pin is engaged between the power disc and the elliptical wheel. The power disc is driven by a motor.
[0008] A take-up roller is provided behind the stretching roller.
[0009] The beneficial effects of this utility model are: it can be formed in one step, which effectively saves costs and avoids material waste; it relies on melt bonding, which avoids the heating and welding problems that were previously caused; it eliminates the need for heating the flat mesh, reducing energy consumption; the process is simple; and the nodes are more solid through melt welding. Attached Figure Description
[0010] The present invention will be further described below with reference to the accompanying drawings.
[0011] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Appendix Figure 2 This is a schematic diagram of the spinneret structure of this utility model. Figure 1 ;
[0013] Appendix Figure 3 This is a schematic diagram of the spinneret structure of this utility model. Figure 2 ;
[0014] Appendix Figure 4 This is a schematic diagram of the spinneret power structure of this utility model;
[0015] In the diagram, 1 is the extruder, 2 is the die head, 3 is the unwinding roller, 4 is the spinneret, 5 is the spinneret hole, 6 is the cooling water tank, 7 is the drafting roller, 8 is the slot, 9 is the pin, 10 is the power plate, 11 is the elliptical wheel, 12 is the motor, and 13 is the take-up roller. Detailed Implementation
[0016] The attached figure shows a specific embodiment of this utility model. This embodiment includes an extruder 1, with a die 2 connected to the end of the extruder 1. An unwinding roller 3 is located below the extruder 1. A slidable spinneret 4 is connected below the die 2, and the spinneret 4 has several evenly arranged spinneret holes 5. A cooling water tank 6 is located behind the unwinding roller 3, and a drafting roller 7 is located behind the cooling water tank 6. The spinneret 4 is located in a groove 8 at the lower part of the die 2. A pin 9 is installed at the end of the spinneret 4, and the pin 9 is engaged between a power disk 10 and an elliptical wheel 11. The power disk 10 is driven by a motor 12. A take-up roller 13 is located behind the drafting roller 7.
[0017] The three-dimensional geonet mat forming equipment of this invention involves placing the raw material in an extruder 1, where it is heated and melted. The material is then extruded through a screw into a die 2. A motor 12 drives a power disc 10 and an elliptical wheel 11 to rotate, thereby causing the spinneret 4 to move back and forth. This allows the filaments ejected from the spinneret 5 to swing back and forth and be sprayed onto a flat mesh wound on a unwinding roller 3. Since the ejected filaments are in a molten state, they adhere to the flat mesh and interweave to form a mesh structure. The flat mesh is pulled forward by a stretching roller 7, while the ejected filaments swing back and forth, spreading randomly on the surface of the stretching mesh. After cooling and shaping in a cooling water tank 6, a three-dimensional geonet mat is formed, which is then wound up by a winding roller 13.
Claims
1. A one-time forming device for three-dimensional geonets, comprising an extruder (1) and a die head (2) connected to the end of the extruder (1), characterized in that: The extruder (1) is provided with a unwinding roller (3) below it, and a slidable spinneret (4) is connected below the die head (2). The spinneret (4) has several evenly arranged spinneret holes (5) on it. A cooling water tank (6) is provided behind the unwinding roller (3), and a drawing roller (7) is provided behind the cooling water tank (6).
2. The one-time forming equipment for three-dimensional geonets according to claim 1, characterized in that: The spinneret (4) is located in the slot (8) at the bottom of the die head (2).
3. The one-time forming equipment for three-dimensional geonets according to claim 1, characterized in that: The spinneret (4) is fitted with a pin (9) at its end. The pin (9) is engaged between the power disc (10) and the elliptical wheel (11). The power disc (10) is driven by a motor (12).
4. The one-time forming equipment for three-dimensional geonets according to claim 1, characterized in that: A take-up roller (13) is provided behind the stretching roller (7).