Environment-friendly heating structure for stretching PE (Poly Ethylene) film
By designing an environmentally friendly heating structure in a PE film stretching equipment, heating both sides of the film body using upstream and downstream air ducts, the problem of low heat energy utilization in the prior art is solved, and efficient heat utilization and low energy consumption heating effect is achieved.
Patent Information
- Application Number
- CN202421226004.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-31
AI Technical Summary
During the stretching process of existing PE films, only one side of the film comes into contact with the heating roller, resulting in the other side being unable to be directly heated, resulting in low heat utilization and high energy consumption.
An environmentally friendly PE film stretching heating structure is designed, including a first heating chamber and a second heating chamber respectively at both ends of the shell, an upward and downward air duct, an air duct and a heating roller are provided in the shell, to ensure that both sides of the film can be heated efficiently.
Heating both sides of the membrane body through two non-interference heating air ducts increases heat utilization, reduces energy consumption, and extends heating time.
Smart Images
Figure CN222590681U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of film processing equipment, in particular to a heating structure for stretching an environmentally friendly PE film. Background Art
[0002] PE film, or polyethylene film, has the characteristics of moisture resistance and low breathability. The film blowing machine is a device that heats and melts PE plastic particles and then blows them into film. After being blown into film, the film needs to be stretched and compounded to reach the required state, and the film still needs to be heated during this process. Most of the existing heating methods heat the film through a heating roller, because the film is often only in contact with the roller surface on one side during stretching, which makes it impossible to directly heat the other side of the film, so the heating roller must input a large amount of heat to make the film reach the required stretching state. In this process, the thermal energy utilization is low and the energy consumption is high. Utility Model Content
[0003] The utility model aims to solve the problems existing in the background technology and proposes an environmentally friendly heating structure for PE film stretching.
[0004] The technical solution of the utility model: an environmentally friendly heating structure for stretching PE film, comprising a shell, wherein a first heating chamber and a second heating chamber are respectively provided at two ends of the shell, the shell also comprises a protrusion, an upward air duct is formed between the protrusion and the shell, the protrusion opens a downward air duct, an air duct is provided in the shell, the air duct comprises two air outlets respectively located on the upper and lower sides of the first heating chamber, and a first heating roller and a second heating roller are respectively passed through the first heating chamber and the second heating chamber.
[0005] Preferably, a heating fan is fixedly mounted on the top of the shell, an air outlet of the heating fan is connected to the air duct, and the air outlet and the first heating roller are located on the same horizontal plane.
[0006] Preferably, the number of the downward air ducts is two, and the two downward air ducts are respectively located at two ends of the second heating roller, and the air inlet of the downward air duct is arranged in a trumpet shape.
[0007] Preferably, first auxiliary roller groups are provided at both ends of the upward air duct, and second auxiliary roller groups are provided at both ends of the shell.
[0008] Preferably, the first auxiliary roller set and the second auxiliary roller set are each composed of two auxiliary roller shafts.
[0009] Compared with the existing technology, the beneficial effect of the utility model is: this scheme, through the setting of the shell, has a built-in air duct for heating both sides of the membrane body, thereby forming two heating air ducts that do not interfere with each other, so that heat can heat both sides of the membrane body to the greatest extent, and the input heat is equivalent, thereby ensuring that the upper and lower sides of the membrane body can be heated efficiently, and the heat can be transferred in the upward and downward air ducts, so that the heating time is increased, and finally the heat is merged into the second heating chamber, so that the utilization rate of heat is improved, and the energy consumption generated is relatively small. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the heating structure for stretching the environmentally friendly PE film proposed in the utility model;
[0011] Figure 2 for Figure 1 A side view structural schematic diagram of;
[0012] Figure 3 for Figure 1 A schematic cross-sectional structure diagram of ;
[0013] Figure 4 This is a schematic structural diagram of the environmentally friendly PE film stretching heating structure duct proposed by the utility model.
[0014] Figure 5 for Figure 1 Schematic diagram of the installation structure.
[0015] Figure numerals: 1. shell; 2. first heating chamber; 3. second heating chamber; 4. upward air duct; 5. protrusion; 6. downward air duct; 7. bell mouth; 8. heating fan; 9. air duct; 10. air outlet; 11. first heating roller; 12. second heating roller; 13. first auxiliary roller group; 14. second auxiliary roller group. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely 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, rather than all of the embodiments.
[0017] See attached Figure 1-5 The environmentally friendly PE film stretching heating structure comprises a shell 1, wherein the first heating chamber 2 and the second heating chamber 3 are respectively provided at two ends of the shell 1, the shell 1 further comprises a protrusion 5, an upward air duct 4 is formed between the protrusion 5 and the shell 1, and a downward air duct 6 is opened in the protrusion 5, and an air duct 9 is provided in the shell 1, and the air duct 9 comprises two air outlets 10 respectively located at the upper and lower sides of the first heating chamber 2, and the first heating chamber 2 and the second heating chamber 3 are respectively penetrated by a first heating roller 11 and a second heating roller 12, such as Figure 3 As shown, when the membrane body passes through the shell 1, the heat input through the upper air outlet 10 above the membrane body can heat the upper part of the membrane body, and the heat input through the lower part of the membrane body can heat the lower part, thereby forming two heating air ducts that do not interfere with each other. Therefore, the heat can heat both sides of the membrane body to the greatest extent, and the input heat is equivalent, thereby ensuring that the upper and lower sides of the membrane body can be efficiently heated, and the heat can be transferred in the upward air duct 4 and the downward air duct 6, so that the heating time is increased, and finally all the heat is merged into the second heating chamber 3, so that the utilization rate of heat is improved, and the energy consumption generated is relatively small.
[0018] It should be noted that in the present embodiment, a heating fan 8 is fixedly installed on the top of the shell 1, the air outlet of the heating fan 8 is connected to the air duct 9, the air outlet 10 and the first heating roller 11 are located on the same horizontal plane, so that the heat generated by the heating fan 8 is input into the first heating chamber 2, and the air outlet 10 and the first heating roller 11 are located on the same horizontal plane, ensuring that the heat will be directly transferred to the air outlet 10.
[0019] It should also be noted that, in the present embodiment, there are two downward air ducts 6, which are respectively located at the two ends of the second heating roller 12, and the air inlet of the downward air duct 6 is arranged in a bell-mouth 7 shape. Because the heat in the second heating chamber 3 is transferred from the first heating chamber 2, there will inevitably be losses in this process, and the hot oil in the second heating roller 12 tends to gather in the middle, which leads to the heat exchange at the two ends, so that the downward air duct 6 is directly blown to the two ends of the second heating roller 12, which can maximize the heat at the two ends and ensure the heating effect.
[0020] In addition, in the present embodiment, a first auxiliary roller group 13 is provided at both ends of the upward air duct 4, and a second auxiliary roller group 14 is provided at both ends of the shell 1. The first auxiliary roller group 13 and the second auxiliary roller group 14 are both composed of two auxiliary roller shafts, which play a role of limiting and guiding. It should be noted that the auxiliary rollers and the first heating roller 11 and the second heating roller 12 are all applications of the prior art. They are not described in detail because they are the prior art known to those skilled in the art and are also indispensable components of the heating device. Moreover, they are not the technical problems to be solved by the present solution, so they are not described in detail. Figure 5 As shown, in this embodiment, the shell 1 is used when the film needs to be stretched, and the shell 1 is arranged between two stretching rollers. The stretching of the film is carried out through the stretching rollers, and the heating of the film is carried out in the shell 1.
[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. Environmentally friendly PE film stretching heating structure, characterized in that: The invention comprises a shell (1), wherein a first heating chamber (2) and a second heating chamber (3) are respectively provided at two ends of the shell (1), wherein the shell (1) further comprises a protrusion (5), wherein an upward air duct (4) is formed between the protrusion (5) and the shell (1), wherein the protrusion (5) opens a downward air duct (6), wherein an air duct (9) is provided in the shell (1), wherein the air duct (9) comprises two air outlets (10) respectively located at the upper and lower sides of the first heating chamber (2), and wherein a first heating roller (11) and a second heating roller (12) are respectively passed through the first heating chamber (2) and the second heating chamber (3).
2. The environmentally friendly PE film stretching heating structure according to claim 1, characterized in that: A heating fan (8) is fixedly mounted on the top of the shell (1); an air outlet of the heating fan (8) is connected to the air duct (9); and the air outlet (10) and the first heating roller (11) are located on the same horizontal plane.
3. The environmentally friendly PE film stretching heating structure according to claim 1, characterized in that: The number of the downward air ducts (6) is two, and the two downward air ducts (6) are respectively located at the two ends of the second heating roller (12), and the air inlet of the downward air duct (6) is arranged in the shape of a bell mouth (7).
4. The environmentally friendly PE film stretching heating structure according to claim 1, characterized in that: A first auxiliary roller group (13) is provided at both ends of the upward air duct (4), and a second auxiliary roller group (14) is provided at both ends of the shell (1).
5. The environmentally friendly PE film stretching heating structure according to claim 4, characterized in that: The first auxiliary roller set (13) and the second auxiliary roller set (14) are both composed of two auxiliary roller shafts.