Air cooling structure for compounding environment-friendly PE (Poly Ethylene) film

Abstract

The utility model relates to the technical field of PE (Poly Ethylene) film production, in particular to an air cooling structure for compounding an environment-friendly PE film. According to the technical scheme, the heat dissipation device comprises a heat dissipation cavity for a film body subjected to composite extrusion to pass through, the cavity is composed of a cone-shaped body and an arc-shaped body, the cone-shaped body and the arc-shaped body form a semi-parabola shape, the top end of the cone-shaped body is a film body inlet, the tail end of the arc-shaped body is a film body outlet, an air inlet is formed in the outlet, and air in the cavity flows from the outlet to the inlet. And an exhaust pinch roll is arranged at the film body inlet of the cone-shaped body. According to the scheme, the principle that hot air ascends and cold air descends is utilized, so that heated air can be gathered in the conical body to be discharged, when a compounded film body is extruded by the exhaust pinch roll to remove bubbles, a large amount of heat is gathered at the exhaust pinch roll, the film body can still have a high temperature, and the bubbles can be well discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of PE film production, in particular to an air cooling structure for environmentally friendly PE film composite. Background Art

[0002] After the composite processing, the surface temperature of the PE film is relatively high and needs to be cooled and shaped. Before cooling and shaping, the bubbles in the composite film need to be squeezed out. However, the existing commonly used die head air ring cooling and shaping makes the dissipated heat unutilized, resulting in waste. When the shaping is completed, the bubbles are not completely squeezed out, which will cause the film to wrinkle when it is rolled up and the quality is poor. Utility Model Content

[0003] The utility model aims to solve the problems existing in the background technology and proposes an environmentally friendly air-cooling structure for PE film composite.

[0004] The technical solution of the utility model: an air-cooling structure for environmentally friendly PE film composites, including a heat dissipation cavity for the film body to pass through after composite extrusion, the cavity is composed of a cone and an arc body, and the two form a semi-parabola, the top of the cone is the film body inlet, the end of the arc body is the film body outlet, an air inlet is provided at the outlet, the wind direction in the cavity is from the outlet to the inlet, and an exhaust clamp roller is provided at the film body inlet of the cone.

[0005] Preferably, the air inlets are provided on both sides of the arc-shaped body, and air ducts connected to the two air inlets are respectively installed on both sides of the interior of the arc-shaped body, and wind guide plates are equidistantly installed on the air ducts. The wind guide plates are inclined toward the conical body, and air outlets are opened next to the wind guide plates.

[0006] Preferably, a guide roller is provided at the intersection of the conical body and the arc-shaped body, and the membrane body passes under the guide roller and between the two air ducts.

[0007] Preferably, ventilation openings are provided on both sides of the intersection of the conical body and the arc-shaped body.

[0008] Compared with the existing technology, the beneficial effect of the utility model is: this scheme utilizes the principle that hot air rises and cold air falls, so that the heated gas will be gathered in the cone and discharged, so that when the composite film body is squeezed and debubbled by the exhaust nip roller, a large amount of heat is gathered at the exhaust nip roller, and the film body can still have a higher temperature, so that the bubbles can be better discharged. In this way, the heat that needs to be dissipated can be well dissipated and utilized at the same time, so that the heat can be dissipated and utilized, and the effect of film composite can be improved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1This is a schematic diagram of the structure of the environmentally friendly PE film composite air-cooling structure proposed by the utility model;

[0010] Figure 2 This is a schematic diagram of the internal structure of the air-cooling structure for the environmentally friendly PE film composite proposed by the utility model;

[0011] Figure 3 This is a schematic diagram of the structure of the air duct in the air cooling structure for the environmentally friendly PE film composite proposed by the utility model

[0012] Figure numerals: 1, cone; 2, arc-shaped body; 3, air inlet; 4, air duct; 5, air guide plate; 6, air outlet; 7, exhaust roller; 8, guide roller; 9, ventilation port. DETAILED DESCRIPTION

[0013] 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.

[0014] See attached Figure 1-3 The air-cooling structure for environmentally friendly PE film composite includes a heat dissipation cavity for the film body to pass through after composite extrusion. The cavity is composed of a cone 1 and an arc 2, and the two form a semi-parabola. The top of the cone 1 is the film inlet, and the end of the arc 2 is the film outlet. An air inlet 3 is provided at the outlet. The wind direction in the cavity flows from the outlet to the inlet. An exhaust roller 7 is provided at the film inlet of the cone 1. Through this semi-parabolic setting, the heated gas will be gathered in the cone 1 and discharged by utilizing the principle that hot air rises and cold air falls. Therefore, when the composite film is squeezed and debubbled by the exhaust nip roller 7, a large amount of heat is gathered at the exhaust nip roller 7, which can still keep the film at a relatively high temperature, so that the bubbles can be discharged better. In this way, the heat that needs to be dissipated can be well dissipated and utilized at the same time. In this way, the heat can be dissipated and utilized, and the effect of film composite can be improved. It should be noted that the exhaust nip roller and the guide roller are common components in this technical field and belong to the prior art known to those skilled in the art, so they will not be described in detail.

[0015] Specifically, air inlets 3 are provided on both sides of the arc body 2, and air ducts 4 connected with the two air inlets 3 are respectively installed on both sides of the interior of the arc body 2, and air guide plates 5 are equidistantly installed on the air ducts 4, which are inclined toward the cone body 1, and air outlets 6 are opened next to the air guide plates 5. A guide roller 8 is provided at the intersection of the cone body 1 and the arc body 2, and the membrane body passes under the guide roller 8 and between the two air ducts 4, and the air inlet 3 is connected to the external cold air pipe, so that the cold air enters the air duct 4 and is discharged through the air outlet 6. At this time, the air guide plate 5 plays a role in guiding the wind direction, so that the cold wind blows obliquely to the membrane body entering the cavity, and because of the inclined setting, the heated gas will flow along the flow direction to the cone body 1, which is convenient for discharging the hot air, and because the air ducts 4 are provided on both sides of the arc body 2, when the wind force of the two air ducts 4 is equal, when the wind force on both sides blows on the membrane body at the same time, the membrane body can be prevented from agitating.

[0016] It should be noted that ventilation ports 9 are provided on both sides of the intersection of the cone 1 and the arc body 2. When the heated gas in the arc body 2 flows into this place, the gas with low temperature will naturally be discharged from the ventilation port 9, while the gas with higher temperature will rise to the exhaust roller 7. This setting is to prevent excessive heat accumulation and cause poor heat dissipation problems.

[0017] 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.

[0018] 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.

[0019] 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 composite air cooling structure, characterized in that: The invention comprises a heat dissipation cavity for a composite extruded film to pass through, the cavity is composed of a cone (1) and an arc (2), and the two form a semi-parabola, the top of the cone (1) is the film inlet, the end of the arc (2) is the film outlet, an air inlet (3) is provided at the outlet, the wind direction in the cavity is from the outlet to the inlet, and an exhaust roller (7) is provided at the film inlet of the cone (1).

2. The environmentally friendly PE film composite air-cooling structure according to claim 1 is characterized in that: The air inlets (3) are provided on both sides of the arc-shaped body (2), and air ducts (4) connected to the two air inlets (3) are respectively installed on both sides of the interior of the arc-shaped body (2), and air guide plates (5) are equidistantly installed on the air ducts (4), the air guide plates (5) are inclined toward the conical body (1), and air outlets (6) are opened next to the air guide plates (5).

3. The air-cooling structure for environmentally friendly PE film composite according to claim 2 is characterized in that: A guide roller (8) is provided at the intersection of the conical body (1) and the arc-shaped body (2), and the membrane body passes under the guide roller (8) and between the two air ducts (4).

4. The environmentally friendly PE film composite air cooling structure according to claim 3 is characterized in that: Ventilation ports (9) are provided on both sides of the intersection of the conical body (1) and the arc-shaped body (2).

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