Stretching device for preparing high-wear artificial grass

Abstract

The application discloses a kind of high wear-resistant artificial grass silk preparation stretching device related to artificial grass silk processing equipment technical field, multiple and along the length direction of box interval setting, and for supporting and tensioning artificial grass silk to zigzag path travel conveying roller is rotationally installed in box, conveying roller is hollow structure, its inner chamber is equipped with electric heating wire, conveying roller one end rotationally connected with for into air blower in conveying roller, conveying roller other end rotationally connected with air pipe, air pipe is opened with multiple air holes towards artificial grass silk, air that flows through the inner chamber of conveying roller is heated after electric heating wire, form hot air and via the air hole on air pipe blow to artificial grass silk, to simultaneously to artificial grass silk contact heating and convection heating;The utility model integrates contact heating and double function of convection heating, not only make grass silk to be fast, evenly reach optimum stretching state, and also realize the efficient recycling of heat.

Description

Technical Field

[0001] This application relates to the technical field of artificial grass fiber processing equipment, specifically a stretching device for preparing high wear-resistant artificial grass fibers. Background Technology

[0002] Artificial turf, a synthetic material widely used in sports fields and landscaping, has mechanical properties such as toughness and abrasion resistance that directly determine its service life. In the manufacturing process of artificial turf, stretching is a crucial step. By stretching and orienting the extruded turf, the polymer molecular chains are arranged in an orderly manner along the fiber axis, thereby significantly improving the breaking strength and durability of the turf.

[0003] Existing stretching processes are mainly divided into two categories. One is to use a hot water bath to immerse and heat the straw fibers. Although the equipment is simple, the heating temperature is limited by the boiling point of water, making it difficult to achieve the optimal stretching state for the straw fibers. In addition, an extra drying step is required after stretching, making the process cumbersome and energy-consuming. The other is to use a large hot air oven for convection heating. Although this method can provide a higher stretching temperature, the equipment occupies a large area and needs to heat the entire oven space, resulting in extremely high energy consumption and expensive operating costs.

[0004] In addition, both hot water baths and hot air ovens focus on a single heat conduction or heat convection method, resulting in limited heat energy utilization and difficulty in achieving rapid, uniform and efficient heat treatment. Therefore, there is an urgent need in this field for a new type of stretching device that can take into account efficient heating, energy saving and consumption reduction, and compact equipment, so as to improve the stretching quality and production efficiency of artificial grass fibers. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, this utility model discloses a stretching device for preparing high wear-resistant artificial grass fibers. This utility model integrates the dual functions of contact heating and convection heating, which not only enables the grass fibers to reach the optimal stretching state quickly and evenly, but also realizes the efficient recycling of heat.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A stretching device for preparing high abrasion-resistant artificial grass fibers includes a housing, an inlet and an outlet disposed at both ends of the housing, and further includes:

[0008] Multiple conveyor rollers are rotatably installed inside the box and spaced apart along the length of the box. They are used to support and tension the artificial grass fibers so that they can travel in a tortuous path. The conveyor rollers have a hollow structure and their inner cavities are equipped with electric heating wires.

[0009] A blower, rotatably connected to one end of the conveyor roller, is used to blow air into the conveyor roller.

[0010] The air duct is rotatably connected to the other end of the conveyor roller, and the air duct has multiple air holes facing the artificial grass fibers;

[0011] In this process, the air flowing through the inner cavity of the conveyor roller is heated by the electric heating wire, forming hot air which is then blown onto the artificial grass fibers through the air holes on the air duct, so as to simultaneously heat the artificial grass fibers by contact and convection.

[0012] Furthermore, one end of the conveyor roller is provided with a hollow tube A that rotates synchronously with the conveyor roller on the same axis. One end of the hollow tube A is connected to the inner cavity of the conveyor roller, and the other end of the hollow tube A rotates through to the outside of the box. The air outlet of the fan is rotatably and sealed to the port of the hollow tube A through a rotary joint.

[0013] Furthermore, a transmission gear is provided on the hollow tube A that extends to the outside of the housing, and a drive motor is provided on the outside of the housing. The output shaft of the drive motor is provided with a drive gear that meshes with the transmission gear.

[0014] Furthermore, the other end of the conveyor roller is rotatably connected to a hollow tube B that is coaxially arranged with the conveyor roller and communicates with the inner cavity of the conveyor roller. The end of the hollow tube B is fixedly connected to the inner wall of the box.

[0015] Furthermore, the other end of the conveyor roller has an open structure, and one end of the hollow tube B is rotatably and sealed to the open end of the conveyor roller through a sealed bearing.

[0016] Furthermore, the air duct and the conveying roller are arranged in parallel and corresponding positions. One end of the air duct near the hollow tube B is provided with a connecting pipe that is connected to the air duct, and the other end of the connecting pipe is connected to the hollow tube B.

[0017] Furthermore, the upper part of the box has an open structure, and the open part of the box has an openable lid.

[0018] Compared with the prior art, the beneficial effects of this application are:

[0019] By designing the conveyor roller as a hollow heating roller, and combining it with a fan and air duct, it can conduct heat directly to the grass fibers through the roller surface, and can also heat the flowing air through the built-in electric heating wire, and then blow the hot air precisely to the grass fibers through the fixed air duct for convection heating. This achieves a composite heating mode for artificial grass fibers from top to bottom, so that the grass fibers can quickly and evenly reach the optimal stretching temperature, and the molecular chains are easier to orient, thereby significantly improving the final tensile strength and wear resistance of the grass fibers.

[0020] By using the heated conveyor roller to heat the air, the heat inside the conveyor roller is reused. The air flowing through the inner cavity of the roller is reheated by the heating wire and the hot roller wall to form hot air, which directly acts on the straw. This avoids the huge energy waste of heating the entire space in a large hot air oven, and makes the heat energy reused multiple times and efficiently, resulting in a significant reduction in energy consumption compared to traditional hot air ovens.

[0021] This invention creatively integrates both contact heating and convection heating by designing the conveyor roller as a hollow heating roller. This not only allows the straw to quickly and evenly reach the optimal stretching state, significantly improving the tensile strength and wear resistance of the product, but also achieves efficient heat recycling. It overcomes the inherent defects of traditional hot air drying ovens, such as high energy consumption, large footprint, low upper temperature limit of hot water tank, and the need for secondary drying. It has outstanding advantages of high energy efficiency, compact structure, and continuous process flow. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the conveyor roller and hot air pipeline structure of this utility model;

[0024] Figure 3 This is a partial top view of the structure of this utility model.

[0025] In the diagram: 1. Box body; 1.1. Inlet; 1.2. Outlet; 1.3. Mounting plate; 2. Box cover; 3. Conveying roller; 3.1. Electric heating wire; 3.2. Hollow tube A; 3.2.1. Transmission gear; 3.3. Hollow tube B; 3.3.1. Sealed bearing; 3.4. Drive motor; 3.4.1. Drive gear; 4. Air duct; 4.1. Connecting pipe; 4.2. Air hole; 5. Fan. Detailed Implementation

[0026] The technical solution of this utility model will be described below with reference to the accompanying drawings of the embodiments of this utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this utility model for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0027] Please refer to the instruction manual appendix. Figure 1-3 This utility model provides a technical solution:

[0028] Example 1: A stretching device for preparing high wear-resistant artificial grass fibers includes a box body 1, and an inlet 1.1 and an outlet 1.2 disposed at both ends of the box body 1. Multiple conveying rollers 3 are rotatably installed inside the box body 1 and spaced apart along the length of the box body 1, for supporting and tensioning the artificial grass fibers to travel along a tortuous path.

[0029] In order to achieve heating and stretching of artificial grass fibers, the conveying roller 3 has a hollow structure and an electric heating wire 3.1 is provided in its inner cavity. The electric heating wire 3.1 is set against the inner wall of the conveying roller 3 to heat the conveying roller 3. During the conveying process of artificial grass fibers, the conveying roller 3 can heat the artificial grass fibers in contact.

[0030] To further improve the heating efficiency of artificial grass fibers, the heat energy inside the conveying roller 3 is reused. One end of the conveying roller 3 is rotatably connected to a fan 5 for blowing air into the conveying roller 3, and the other end of the conveying roller 3 is rotatably connected to an air duct 4. The air duct 4 has multiple air holes 4.2 facing the artificial grass fibers. The air flowing through the inner cavity of the conveying roller 3 is heated by the electric heating wire 3.1 to form hot air, which is blown towards the artificial grass fibers through the air holes 4.2 on the air duct 4, thereby realizing convection heating of the artificial grass fibers.

[0031] To meet the requirements of synchronous contact heating and convection heating of artificial grass fibers, one end of the conveying roller 3 is provided with a hollow tube A3.2 that rotates synchronously with the conveying roller 3 on the same axis. One end of the hollow tube A3.2 is connected to the inner cavity of the conveying roller 3, and the other end of the hollow tube A3.2 rotates through to the outside of the housing 1. The air outlet of the fan 5 is rotatably and sealed to the port of the hollow tube A3.2 through a rotary joint. The hollow tube A3.2 that extends through to the outside of the housing 1 is provided with a transmission gear 3.2.1 that is coaxially arranged with it. The outside of the housing 1 is provided with a drive motor 3.4. The output shaft of the drive motor 3.4 is provided with a drive gear 3.4.1 that meshes with the transmission gear 3.2.1. The other end of the conveying roller 3 is an open structure. The open end of the conveying roller 3 is rotatably and sealed to the hollow tube B3.3 through a sealed bearing 3.3.1. A rotary joint can also be added for a more efficient rotatable and sealed connection. The end of the hollow tube B3.3 is fixedly connected to the inner wall of the housing 1.

[0032] The electric heating wire 3.1 is located inside the conveying roller 3. In order to power the electric heating wire 3.1, an electric slip ring is provided at the end of the conveying roller 3 away from the drive motor 3.4. The electric slip ring is an electrical component responsible for connecting, transmitting energy and signals to the rotating body. It can prevent the wire from being twisted and broken during rotation. The electric slip ring can be integrated into the sealed bearing 3.3.1 or the rotary joint. The external power line passes through the housing 1 and is connected to the stator of the electric slip ring through the hollow tube B3.3. The rotor of the electric slip ring is connected to the electric heating wire 3.1 through a high-temperature heat-resistant cable to power the electric heating wire 3.1. The housing 1 is provided with a mounting plate 1.3 on the outside. The drive motor 3.4 and the fan 5 are both installed on the upper part of the mounting plate 1.3.

[0033] Through the connection structure of hollow tubes A3.2 and B3.3 at both ends of the conveying roller 3, the drive motor 3.4 drives the hollow tube A3.2 to rotate through meshing transmission, thereby driving the conveying roller 3 to rotate synchronously. One end of the hollow tube B3.3 is rotatably and sealed to the conveying roller 3, and the other end is fixedly connected to the inner wall of the box 1. Therefore, the hollow tube B3.3 remains stationary during the rotation of the conveying roller 3, so that the air duct 4 can always remain stationary, thereby providing stable hot air blowing and heating to the artificial grass fibers.

[0034] In Example 2, during the heating and stretching process of artificial grass fibers, multiple artificial grass fibers are often conveyed simultaneously on the conveying roller 3. In order to enable the air duct 4 to blow hot air and heat the multiple artificial grass fibers on the conveying roller 3, the air duct 4 is arranged parallel to the conveying roller 3. Multiple air holes 4.2 are provided on the air duct 4 and are arranged along the axial direction of the air duct 4 and correspond to the artificial grass fibers. One end of the air duct 4 near the hollow tube B3.3 is provided with a connecting pipe 4.1 that communicates with the air duct 4, and the other end of the connecting pipe 4.1 is connected to the hollow tube B3.3.

[0035] During the heating and stretching process of artificial grass fibers, the hollow tube B3.3 connected to the connecting tube 4.1 remains stationary. The connecting tube 4.1 provides horizontal support for the air duct 4, and the heated airflow is delivered to the multiple artificial grass fibers on the conveying roller 3 through multiple air holes 4.2 for hot air heating.

[0036] In Example 3, by placing the conveyor roller 3 and the air duct 4 inside the box 1, excessive heat loss inside the box 1 can be effectively avoided, thereby further improving the heating and stretching effect of the artificial grass fibers. In order to facilitate the placement and conveying of the artificial grass fibers by the staff and to facilitate the inspection and maintenance of the conveyor roller 3 and the air duct 4, the upper part of the box 1 is an open structure. The open part of the upper part of the box 1 is provided with an openable box cover 2. The box cover 2 can be hinged by a hinge, and a sealing strip is added to seal the contact surface between the box cover 2 and the box 1.

[0037] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A stretching device for preparing high abrasion-resistant artificial grass fibers, comprising a housing (1), and an inlet (1.1) and an outlet (1.2) disposed at both ends of the housing (1), characterized in that, Also includes: Multiple conveying rollers (3) are rotatably installed inside the box (1) and spaced apart along the length of the box (1) to support and tension the artificial grass fibers to travel along a tortuous path. The conveying rollers (3) have a hollow structure and are equipped with electric heating wires (3.1) in their inner cavity. A blower (5) is rotatably connected to one end of a conveyor roller (3) and is used to blow air into the conveyor roller (3); The air duct (4) is rotatably connected to the other end of the conveying roller (3), and the air duct (4) has multiple air holes (4.2) facing the artificial grass fibers. The air flowing through the inner cavity of the conveyor roller (3) is heated by the electric heating wire (3.1) to form hot air, which is then blown onto the artificial grass fibers through the air hole (4.2) on the air pipe (4) to simultaneously heat the artificial grass fibers by contact and convection.

2. The stretching device for preparing high abrasion-resistant artificial grass fibers according to claim 1, characterized in that: One end of the conveying roller (3) is provided with a hollow tube A (3.2) that rotates synchronously with the conveying roller (3). One end of the hollow tube A (3.2) is connected to the inner cavity of the conveying roller (3), and the other end of the hollow tube A (3.2) rotates through to the outside of the box (1). The air outlet of the fan (5) is rotatably and sealed to the port of the hollow tube A (3.2) through a rotary joint.

3. The stretching device for preparing high abrasion-resistant artificial grass fibers according to claim 2, characterized in that: A transmission gear (3.2.1) is provided on the hollow tube A (3.2) that extends through the outside of the box (1). A drive motor (3.4) is provided on the outside of the box (1). A drive gear (3.4.1) is provided on the output shaft of the drive motor (3.4) that meshes with the transmission gear (3.2.1).

4. The stretching device for preparing high abrasion-resistant artificial grass fibers according to claim 2, characterized in that: The other end of the conveying roller (3) is rotatably connected to a hollow tube B (3.3) that is coaxial with the conveying roller (3) and communicates with the inner cavity of the conveying roller (3). The end of the hollow tube B (3.3) is fixedly connected to the inner wall of the box (1).

5. The stretching device for preparing high abrasion-resistant artificial grass fibers according to claim 4, characterized in that: The other end of the conveyor roller (3) is an open structure, and one end of the hollow tube B (3.3) is rotatably and sealed to the open end of the conveyor roller (3) through a sealed bearing (3.3.1).

6. The stretching device for preparing high abrasion-resistant artificial turf fibers according to claim 5, characterized in that: The air duct (4) and the conveying roller (3) are arranged in parallel and corresponding. One end of the air duct (4) near the hollow tube B (3.3) is provided with a connecting pipe (4.1) connected to the air duct (4), and the other end of the connecting pipe (4.1) is connected to the hollow tube B (3.3).

7. The stretching device for preparing high abrasion-resistant artificial grass fibers according to claim 1, characterized in that: The upper part of the box (1) is an open structure, and the open part of the box (1) is equipped with an openable lid (2).

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