Plastic net tube wind ring lifting cooling forming device

Abstract

This application discloses a plastic mesh tube cooling and forming device with an air ring for cooling plastic mesh tubes at the end of a plastic mesh tube forming machine head. The end of the forming machine head is coaxially connected to a mesh tube shaping roller, which extends horizontally. The cooling and forming device includes at least one air ring, and the air ring maintains the same gap distance from the outer periphery of the shaping roller along its axial direction. The air ring has an annular air cavity and an air inlet communicating with the annular air cavity to supply high-pressure air. The annular air cavity also has an air outlet on the circumferential side near the shaping roller. The plastic mesh tube cooling and forming device provided in this application uses air cooling, which reduces cooling costs, ensures product quality, and enhances safety.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic mesh tube cooling and forming equipment, and in particular to a plastic mesh tube air ring lifting cooling and forming device. Background Technology

[0002] In existing technologies, plastic mesh tubes are generally formed using a plastic mesh tube forming machine. During the forming process, molten material is cooled and shaped by spraying water. However, the cooling water has a certain gravity, and during operation, it accumulates at the bottom of the plastic mesh tube. Once it reaches a certain amount, it drips down. For the product, the accumulated cooling water causes the bottom of the plastic mesh tube to sag and pull, resulting in defects such as bottom twisting, bending, and cross-sectional deformation.

[0003] In addition, water cooling methods also have problems such as large water consumption and high costs, which increase the burden on manufacturing enterprises. Utility Model Content

[0004] This application provides a plastic mesh tube air ring lifting and cooling molding device, which uses air cooling to perform molding, which can reduce cooling costs, ensure product quality, and make it safer to use.

[0005] This application provides a plastic mesh tube cooling and forming device with an air ring for cooling plastic mesh tubes at the end of a plastic mesh tube forming head. The end of the plastic mesh tube forming head is coaxially connected to a mesh tube shaping roller, which extends horizontally. The cooling and forming device includes at least one air ring, and the air ring maintains the same gap distance from the outer periphery of the mesh tube shaping roller along its axial direction. The air ring has an annular air cavity and an air inlet communicating with the annular air cavity to supply high-pressure air to it. The annular air cavity also has an air outlet along its circumference on the side near the mesh tube shaping roller.

[0006] In one possible implementation, the air ring is connected to the plastic mesh tube forming head via a connecting frame, or the bottom of the air ring is provided with a support frame for supporting the air ring at a predetermined height.

[0007] In one possible implementation, the air ring is located between the end of the plastic tube forming head and the tube shaping roller, and the air outlet extends obliquely toward the side away from the plastic tube forming head.

[0008] In one possible implementation, the angle between the air outlet and the shaping roller of the mesh tube is 25°-55°.

[0009] In one possible implementation, the air ring has 2-3 components, including a first air ring near the plastic tube forming head and several second air rings, wherein the first air ring is located between the end of the plastic tube forming head and the tube forming roller, and the air outlet of the first air ring extends obliquely away from the plastic tube forming head, wherein the second air ring is sleeved on the tube forming roller, and the air outlet of the second air ring is close to the tube forming roller.

[0010] In one possible implementation, the angle between the air outlet of the first air ring and the shaping roller of the mesh tube is 25°-55°.

[0011] In one possible implementation, the second air ring is connected to the ground or the top of the workbench via a second support frame.

[0012] Beneficial effects: Compared with the prior art, the plastic mesh tube air ring lifting and cooling molding device provided in this application uses high-pressure air from the air ring outlet to initially cool and lift the molten plastic mesh tube, so that the plastic mesh tube can adhere tightly to the surface of the mesh tube shaping roller in the molten state without cooling. This avoids the defects of sagging and pulling that are easily caused by water cooling, which affect the appearance of the product. In addition, the air cooling method cools the molten plastic mesh tube more gently, which can reduce the deformation of the plastic mesh tube caused by sudden cooling in the water cooling stage.

[0013] These and other objects, features and advantages of this utility model will be fully realized through the following detailed description. Attached Figure Description

[0014] Figure 1 The diagram shows a front view of the plastic mesh tube air ring lifting and cooling molding device of this application.

[0015] Figure 2 A partial cross-sectional view of the plastic mesh tube air ring lifting and cooling molding device of this application is shown.

[0016] Figure 3 A cross-sectional structural schematic diagram of another embodiment of the plastic mesh tube air ring lifting and cooling molding device of this application is shown. Detailed Implementation

[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0018] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0019] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0020] refer to Figure 1 and Figure 2 This application provides a plastic mesh tube air ring lifting and cooling molding device for cooling plastic mesh tubes at the end of a plastic mesh tube forming head 10. The end of the plastic mesh tube forming head 10 is coaxially connected to a mesh tube shaping roller 20, which extends horizontally. During operation, the molten plastic mesh tube exiting the plastic mesh tube forming head 10 continues to move and gradually cools and solidifies on the mesh tube shaping roller 20. The cooling and forming device includes at least one air ring 30. Along the axial direction of the mesh tube forming roller 20, the air ring 30 maintains the same gap distance from the outer periphery of the mesh tube forming roller 20. The air ring 30 has an annular air cavity 301 and an air inlet connecting to the annular air cavity 301 to supply high-pressure air. Furthermore, the annular air cavity 301 also has an air outlet 302 along its circumferential direction on the side near the mesh tube forming roller 20. That is, the air inlet is connected to a high-pressure air source. During operation, the high-pressure air source continuously supplies high-pressure cooling gas to the annular air cavity 301 through the air inlet. This high-pressure cooling gas is then sprayed through the air outlet 302 into the molten state. On the plastic stencil, the molten plastic stencil exiting from the end of the plastic stencil forming head 10 can play a preliminary cooling and lifting role, so that the plastic stencil can stick tightly to the surface of the stencil forming roller 20 during the cooling process. This not only avoids the defects (including twisting, bending, cross-sectional deformation, etc.) that are easily caused by water cooling, but also the cooling air generated by the air cooling method will exert a pressure force on the molten plastic stencil towards the stencil forming roller 20, rather than a downward pulling force or sag force, so that the cooling and forming effect of the plastic stencil is better. At the same time, the air cooling method is gentler on the plastic stencil, which can reduce the deformation of the plastic stencil caused by the sudden cooling in the water cooling stage.

[0021] The air outlet 302 of the annular air cavity 301 is located on the side closest to the mesh tube shaping roller 20, meaning it is directly opposite the mesh tube shaping roller 20, or it has a certain angle of deviation, deviating towards the mesh tube shaping roller 20 or towards the plastic mesh tube forming head 10.

[0022] Furthermore, the plastic mesh tube air ring lifting and cooling molding device provided in this application uses air cooling for molding, which can avoid the risk of electric shock that may exist with water cooling, making it safer to use.

[0023] In one embodiment, the air ring 30 is connected to the plastic mesh tube forming head 10 via a connecting frame 31, or the bottom of the air ring 30 is provided with a support frame for supporting the air ring at a predetermined height.

[0024] In one embodiment, the air ring 30 is located between the end of the plastic mesh tube forming head 10 and the mesh tube shaping roller 20, and the air outlet 302 extends obliquely away from the plastic mesh tube forming head 10. In this way, most of the cooling air will move towards the mesh tube shaping roller 20, forming an oblique lifting force. A very small portion may move towards the plastic mesh tube forming head 10, but this will not affect the movement of the molten plastic mesh tube, nor will it affect the plastic mesh tube forming head 10 from heating the material into a molten plastic mesh tube. However, if the air outlet 302 is directly opposite the axial direction of the mesh tube shaping roller 20, a lot of air may blow back to the plastic mesh tube forming head 10, affecting the heating effect of the plastic mesh tube forming head 10.

[0025] More preferably, the included angle α between the air outlet 302 and the mesh tube shaping roller 20 is 25°-55°. Its main effect is to balance between ensuring cooling efficiency and avoiding excessive backflow of cooling gas. If the angle is too small, it tends to be horizontal, and the cooling effect is poor. If the angle is too large, it may tend to be perpendicular to the mesh tube shaping roller 20, which can easily generate more backflow of cooling gas and affect the heating inside the plastic mesh tube forming head.

[0026] In another embodiment, combined with Figure 3The air ring 30 has 2-3 components, including a first air ring 310 near the plastic mesh tube forming head 10 and several second air rings 320. The first air ring 310 is located between the end of the plastic mesh tube forming head 10 and the mesh tube shaping roller 20, and the air outlet 302 of the first air ring 310 extends obliquely away from the plastic mesh tube forming head 10. The second air rings 320 are sleeved on the mesh tube forming roller 20, and the air outlet 302 of the second air rings 320 is close to the mesh tube forming roller 20. In this way, the first air ring 310 can provide initial cooling and support for the molten plastic mesh tube at the end of the plastic mesh tube forming head 10, and the second air rings 320 can provide further cooling. However, it can accelerate cooling and improve cooling efficiency. The second air ring 320 can be one or two, depending on the length of the mesh tube shaping roller 20. In addition, the orientation of the air outlet 302 on the second air ring 320 does not need to be strictly restricted. It can be directly facing the mesh tube shaping roller 20, or slightly tilted away from the plastic mesh tube forming head 10, or 302 can be opened on both the side facing the mesh tube shaping roller 20 and the side slightly tilted away from the plastic mesh tube forming head 10. It can cool the plastic mesh tube that is currently passing by, and can also continue to cool the plastic mesh tube that has passed by (through the air outlet 302 slightly tilted away from the plastic mesh tube forming head 10), which can further improve the cooling efficiency.

[0027] More preferably, the angle between the air outlet 302 of the first air ring 310 and the mesh tube shaping roller 20 is 25°-55°, which can be referenced. Figure 2 Its main effect is to balance between ensuring cooling efficiency and avoiding excessive backflow of cooling gas. If the angle is too small, it tends to be horizontal, resulting in poor cooling effect. If the angle is too large, it may tend to be vertical to the shaping roller 20 of the plastic tube, which can easily generate more backflow of cooling gas and affect the heating inside the plastic tube forming head.

[0028] In one embodiment, the second air ring 320 is connected to the ground or the top of the workbench via a second support frame. That is, the second support frame provides support for the second air ring 320 to keep it at an appropriate height. The second support frame can be placed directly on the ground or placed on the ground via a base. In some cases, the second support frame is placed directly on the workbench or work area, or it can be placed on the workbench or work area via a base.

[0029] It should be noted that the terms "first" and "second" used in this application are for descriptive purposes only and do not indicate any order. They should not be construed as indicating or implying relative importance, and can be interpreted as names.

[0030] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A plastic mesh tube air ring lifting and cooling molding device, used to cool the plastic mesh tube at the end of a plastic mesh tube forming machine head, wherein a mesh tube shaping roller is coaxially connected to the end of the plastic mesh tube forming machine head, the mesh tube shaping roller extending in a horizontal direction, characterized in that, The cooling and forming device includes at least one air ring, and in the axial direction of the mesh tube forming roller, the air ring and the outer peripheral side of the mesh tube forming roller maintain the same gap distance. The air ring has an annular air cavity and an air inlet that connects to the annular air cavity to supply high-pressure air to the annular air cavity. The annular air cavity also has an air outlet along the circumferential direction on the side close to the mesh tube forming roller.

2. The plastic mesh tube air ring lifting and cooling molding device as described in claim 1, characterized in that, The air ring is connected to the plastic mesh tube forming machine head via a connecting frame, or the bottom of the air ring is provided with a support frame for supporting the air ring at a predetermined height.

3. The plastic mesh tube air ring lifting and cooling molding device as described in claim 1, characterized in that, The air ring is located at the end of the plastic tube forming head and between the tube forming roller, and the air outlet extends obliquely to the side away from the plastic tube forming head.

4. The plastic mesh tube air ring lifting and cooling molding device as described in claim 3, characterized in that, The angle between the air outlet and the shaping roller of the mesh tube is 25°-55°.

5. The plastic mesh tube air ring lifting and cooling molding device as described in claim 1, characterized in that, The air ring has 2-3 components, including a first air ring near the plastic tube forming machine head and several second air rings. The first air ring is located between the end of the plastic tube forming machine head and the tube forming roller, and the air outlet of the first air ring extends obliquely away from the plastic tube forming machine head. The second air ring is sleeved on the tube forming roller, and the air outlet of the second air ring is close to the tube forming roller.

6. The plastic mesh tube air ring lifting and cooling molding device as described in claim 5, characterized in that, The angle between the air outlet of the first air ring and the shaping roller of the mesh tube is 25°-55°.

7. The plastic mesh tube air ring lifting and cooling molding device as described in claim 6, characterized in that, The second air ring is connected to the ground or the top of the workbench via the second support frame.

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