PLA laminated film thick edge control structure

Abstract

The utility model discloses a kind of PLA membrane thick edge control structures, including steel plate, symmetric oval hole and round hole are equipped on the steel plate, oval hole and round hole are fixed between by bolt connecting fixed plate, a group of air jet nozzles are equipped on the fixed plate, air jet nozzle is connected external hot air machine by hot air pipeline, the utility model hot air is blown out to both sides, after high temperature, its heated time extension, the contraction width of edge reduces, the portion that needs to cut reduces, can effectively reduce the generation of waste material, improve the production efficiency of equipment, air jet nozzle can also be adjusted with the inclined oval hole, it is convenient to cope with different models, different width's membrane, further optimize hot gas structure, improve the applicability of device.

Description

Technical Field

[0001] This utility model belongs to the field of PLA coating technology, and particularly relates to a PLA coating thickness control structure. Background Technology

[0002] PLA coating is an environmentally friendly paper coating technology that uses polylactic acid (PLA) instead of traditional polyethylene (PE) plastic film, and is applied in the fields of food packaging and tableware.

[0003] During the coating process, the edges shrink due to the transition between high and low temperatures after molding. To reduce the thickening effect caused by shrinkage, a structure that can delay shrinkage by blowing hot air is proposed, thereby reducing the amount of waste and minimizing waste. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a PLA coating thickness control structure that reduces the amount of material that needs to be cut, effectively reduces waste generation, and improves the production efficiency of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PLA coating thickness control structure, comprising a steel plate, wherein the steel plate is provided with symmetrical elliptical holes and round holes, and a fixing plate is connected between the elliptical holes and round holes by bolts, and a set of air nozzles is provided on the fixing plate, wherein the air nozzles are connected to an external hot air blower through a hot air pipe.

[0006] Preferably, the elliptical hole is located inside the circular hole, and the elliptical hole is inclined to the outer side at a higher position.

[0007] Preferably, the number of the jet nozzles is at least one.

[0008] Preferably, the jet nozzle is connected to the fixed plate via a ball joint bracket.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. Hot air is blown out to both sides. After being heated at high temperature, the heating time is extended, the shrinkage width of the edges is reduced, and the part that needs to be cut is reduced, which can effectively reduce the generation of waste and improve the production efficiency of the equipment.

[0011] 2. The jet nozzle can also be adjusted along with the inclined elliptical hole to accommodate different models and widths of coating, further optimizing the hot gas structure and improving the applicability of the device. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the structure of this utility model before modification.

[0014] In the diagram: 1 PLA coating, 2 steel plate, 3 oval hole, 4 round hole, 5 fixing plate, 6 bolt, 7 air nozzle, 8 hot air duct. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0016] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "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, they should not be construed as limitations on this utility model.

[0017] Example:

[0018] See appendix Figure 1-2 As shown, a PLA coating thickness control structure includes a steel plate 2, on which symmetrical elliptical holes 3 and round holes 4 are provided. The elliptical holes 3 and round holes 4 are connected to a fixing plate 5 by bolts 6. A set of air nozzles 7 are provided on the fixing plate 5, and the air nozzles 7 are connected to an external hot air blower through a hot air duct 8.

[0019] Preferably, the elliptical hole 3 is located inside the circular hole 4, and the elliptical hole 3 is inclined to the outside at a higher position.

[0020] Preferably, the number of the jet nozzles 7 is at least one.

[0021] Preferably, the jet nozzle 7 is connected to the fixed plate 5 via a ball joint bracket.

[0022] Working principle: After PLA coating is formed, the temperature drops at the discharge point, causing the coating edge to shrink and thicken. This thickening necessitates trimming during subsequent use. To optimize the equipment structure, an adjustable air nozzle 7 is installed on the steel plate 2 next to the discharge point. Connected to a hot air blower, hot air is directed to both sides. After being heated to high temperatures, the edge shrinkage and width decrease, resulting in a more uniform coating thickness and reduced trimming. This effectively reduces waste and improves equipment efficiency. The air nozzle can also be adjusted using the inclined elliptical holes 3 to accommodate different coating models and widths, further optimizing the hot air structure and enhancing the device's applicability.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered 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 that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PLA coating thickness control structure, comprising a steel plate, characterized in that: The steel plate is provided with symmetrical elliptical holes and round holes, and the elliptical holes and round holes are connected to a fixing plate by bolts. The fixing plate is provided with a set of air nozzles, and the air nozzles are connected to an external hot air fan through a hot air pipe.

2. The PLA coating thickness control structure according to claim 1, characterized in that: The elliptical hole is located inside the circular hole, and the elliptical hole is inclined to the outside at a higher position.

3. The PLA coating thickness control structure according to claim 1, characterized in that: The number of jet nozzles is at least one.

4. The PLA coating thickness control structure according to claim 1, characterized in that: The jet nozzle is connected to the fixed plate via a ball joint bracket.

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