Shrink furnace

Abstract

The utility model relates to the technical field of cosmetic packaging, in particular to a shrink oven which comprises a body, an auxiliary heating device is arranged on the body, and the auxiliary heating device comprises an auxiliary heating cover and an auxiliary heating plate. The shrinkage process of the thermal shrinkage film is accelerated, so that the production efficiency is improved, the thermal shrinkage film is uniformly shrunk, even if the thermal shrinkage film is non-uniformly shrunk in the heating cavity, secondary heating can be performed at the auxiliary heating device, and the thermal shrinkage film is favorably ensured to be completely attached to the outer package of a product; the problem that when a shrinking furnace in the related technology coats the outer package of cosmetics, some products are prone to being heated unevenly, coating shrinkage is not tight, and wrinkles occur is solved.

Description

Technical Field

[0001] The present application relates to the technical field of cosmetic packaging, and in particular to a shrinking furnace. Background Art

[0002] The shrink oven is a device used for heat shrink packaging. It adopts the heating method of hot air circulation. The hot air circulation is provided by the furnace wire type stainless steel spiral heat sink heating tube to achieve heat shrink packaging of the outer layer of products such as batteries, cosmetics, and disposable tableware.

[0003] The shrinking furnace in the related art is used for the film packaging of cosmetics. Since the outer packaging of cosmetics is mostly irregular in shape, the film is put on the outer packaging and heated in the heating chamber of the shrinking furnace. The outer packaging can basically be covered. However, some packages will still have wrinkles on the film due to uneven heating, so that the film shrinks loosely. In order to solve this problem, a shrinking furnace is provided. Utility Model Content

[0004] In order to solve the problem in the related art that shrinkage ovens are prone to uneven heating when wrapping the outer packaging of cosmetics, resulting in loose shrinkage and wrinkles of the packaging, the present application provides a shrinkage oven.

[0005] The shrinking furnace provided in this application adopts the following technical solution:

[0006] A shrinking furnace comprises a main body, on which an auxiliary heating device is arranged, wherein the auxiliary heating device comprises an auxiliary heating cover and an auxiliary heating plate.

[0007] By adopting the above technical solution: providing additional heat to ensure that the heat shrink film is tightly wrapped on the product, reducing the appearance of wrinkles, and accelerating the shrinkage process of the heat shrink film. At the same time, combined with the main heating device on the body, the heat shrink film can be heated and shrunk more quickly and evenly, thereby improving production efficiency.

[0008] Preferably, the auxiliary heating cover comprises an outer cover, an inner cover and a heat source arranged between the outer cover and the inner cover.

[0009] By adopting the above technical solution: forming a heat exchange area between the heat source and the object to be shrunk,

[0010] Provides uniform heat radiation, allowing the heat shrink film to be further evenly heated and shrunk.

[0011] Preferably, the heat source is an electric heating tube.

[0012] By adopting the above technical solution: as a heat source, it can provide continuous heat energy and the electric heating tube has high thermal efficiency and long service life.

[0013] Preferably, the auxiliary heating cover is provided with a blower fan.

[0014] By adopting the above technical solution: providing airflow to help hot air circulate in the auxiliary heating cover, ensuring uniform heat distribution, enhancing heat exchange effect, and making all parts of the heat shrink film heated more evenly.

[0015] Preferably, a separate temperature control switch is provided on the auxiliary heating cover.

[0016] By adopting the above technical solution: the temperature of the auxiliary heating cover can be independently controlled to achieve precise temperature control, ensure that the auxiliary heating device does not overheat, and protect equipment and products.

[0017] Preferably, the auxiliary heating plate includes an upper top plate and a lower bottom plate, and a cavity is formed between the upper top plate and the lower bottom plate.

[0018] By adopting the above technical solution, uniform heating can be provided over a large area, and the cavity between the upper top plate and the lower bottom plate can store and transfer heat, thereby enhancing the heating effect.

[0019] Preferably, a plurality of heat conducting pipes are provided on the cavity.

[0020] Preferably, the ends of the plurality of heat pipes facing away from the cavity are connected to the body.

[0021] By adopting the above technical solution: as a heat transfer channel, heat can be transferred from the cavity to the heating cavity on the main body, thereby enhancing the heat transfer efficiency, ensuring that heat can be transferred to the heating cavity quickly and evenly, and reducing heat waste.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The auxiliary heating device provided in this application can provide additional heat to accelerate the shrinkage process of the heat shrink film. This not only improves production efficiency but also ensures uniform shrinkage of the heat shrink film. Even if the shrinkage is uneven in the heating chamber, secondary heating will be performed at the auxiliary heating device, which helps to ensure that the heat shrink film is completely attached to the product packaging.

[0024] 2. This application uses heat pipes to transfer heat from the auxiliary heating plate to other parts of the shrinking furnace, which helps reduce heat loss, improves resource utilization, reduces heat waste, and enhances overall heat transfer efficiency. It can ensure that heat can be quickly and evenly transferred to the entire shrinking furnace, further improving the heating effect and production efficiency.

[0025] 3. This application provides a separate temperature control switch for the auxiliary heating device, which can independently control the temperature of the auxiliary heating device and achieve precise temperature control, which helps to protect equipment and products and avoid overheating or insufficient temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the shrinking furnace in the embodiment of the present application;

[0027] Figure 2 This is a schematic diagram of the overall structure of the auxiliary heating device for the shrinking furnace according to an embodiment of the present application;

[0028] Figure 3 It is a schematic diagram of a partial cross-sectional structure of the auxiliary heating device of the shrinkage furnace according to an embodiment of the present application.

[0029] Figure numerals: 1. Main body; 2. Auxiliary heating device; 21. Auxiliary heating cover; 211. Outer cover; 212. Inner cover; 213. Electric heating pipe; 214. Blower fan; 215. Temperature control switch; 22. Auxiliary heating plate; 221. Upper top plate; 222. Lower bottom plate; 223. Cavity; 224. Heat pipe. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail. Example

[0031] The present application embodiment discloses a shrinking furnace, referring to Figure 1 and Figure 2 , including a main body 1, an auxiliary heating device 2 is installed at the outlet position of the heating chamber of the main body 1, wherein the auxiliary heating device 2 is composed of an auxiliary heating cover 21 and an auxiliary heating plate 22. The auxiliary heating device 2 can provide additional heat. Even if the shrinkage in the heating chamber is uneven, secondary heating will be performed at the auxiliary heating device 2, which is conducive to ensuring that the heat shrink film is fully attached to the outer packaging of the product, and the heat shrink film can be heated and shrunk more evenly, thereby improving production efficiency.

[0032] The auxiliary heating cover 21 includes an outer cover 211 and an inner cover 212. Figure 2 and Figure 3 A heat source is installed in the gap between the inner cover 212 and the outer cover 211. In this embodiment, an electric heating pipe 213 is used as the heat source. Inside the heating cover, the electric heating pipe 213 can provide continuous and uniform heat radiation, forming a heat exchange space between the object to be shrunk and the inner cover 212. Three blowers 214 are evenly distributed on the inner cover 212. The blower fans 214 provide airflow, and the airflow drives heat to form hot air, which evenly fills the entire heating cover with hot air, accelerates heat circulation, enhances the heat exchange effect, and makes all parts of the heat shrink film heated more evenly.

[0033] To ensure the safety of the entire shrink furnace, refer to Figure 2 An independently controlled temperature control switch 215 is also installed on the auxiliary heating cover 21 to accurately control the temperature inside the auxiliary heating cover 21 to ensure that the temperature is not too high, which is beneficial to protecting products and equipment.

[0034] In order to achieve the recycling of heat, reduce resource waste and ensure uniform heating, refer to Figure 2 and Figure 3 An auxiliary heating plate 22 is also installed at the outlet of the heating chamber, wherein the auxiliary heating plate 22 includes an upper top plate 221 and a lower bottom plate 222, providing heat over a large area, and a cavity 223 structure is formed between the upper top plate 221 and the lower bottom plate 222. The cavity 223 can store and transfer heat to enhance the heating effect. At the same time, two heat pipes 224 are installed on the cavity 223, and the other end of the heat pipe 224 is inserted into the heating chamber on the main body 1, so that heat can be effectively transferred from the auxiliary heating plate 22 to the heating chamber, effectively saving heat and reducing waste of resources.

[0035] The working process and implementation principle of Example 1 are as follows: the outer surface of the cosmetic is wrapped with a film, placed on the shrinking furnace body 1, and transported to the heating chamber via a conveyor belt. The heat in the heating chamber causes the film to shrink and wrap the cosmetic tightly. However, some cosmetics still have wrinkles on the outer film and are not shrunk tightly.

[0036] At this time, turn on the auxiliary heating device 2, adjust the temperature control switch 215 to an appropriate temperature, and the electric heating tube 213 in the auxiliary heating cover 21 starts to work, and cooperates with the blower fan 214 to circulate the hot air in the space inside the auxiliary heating cover 21 to promote heat exchange. Thanks to the setting of the auxiliary heating plate 22, the bottom can also be heated evenly. At the same time, the heat pipe 224 is interconnected with the heating chamber to ensure that excess heat will not be wasted, accelerate heat circulation, enhance the heat exchange effect, make various parts of the heat shrink film more evenly heated, and make the film shrink after secondary heating, reducing the risk of loose film shrinkage and wrinkles.

[0037] The above are preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A shrinking furnace, comprising a body (1), characterized in that: An auxiliary heating device (2) is provided on the body (1), wherein the auxiliary heating device (2) comprises an auxiliary heating cover (21) and an auxiliary heating plate (22).

2. The shrinking furnace according to claim 1, characterized in that The auxiliary heating cover (21) comprises an outer cover (211), an inner cover (212), and a heat source arranged between the outer cover (211) and the inner cover (212).

3. The shrinking furnace according to claim 2, characterized in that: The heat source is an electric heating pipe (213).

4. The shrinking furnace according to claim 1, characterized in that The auxiliary heating cover (21) is provided with a blower fan (214).

5. The shrinking furnace according to claim 1, characterized in that The auxiliary heating cover (21) is provided with a separate temperature control switch (215).

6. The shrinking furnace according to claim 1, characterized in that The auxiliary heating plate (22) comprises an upper top plate (221) and a lower bottom plate (222), and a cavity (223) is formed between the upper top plate (221) and the lower bottom plate (222).

7. The shrinking furnace according to claim 6, characterized in that A plurality of heat conducting pipes (224) are provided on the cavity (223).

8. The shrinking furnace according to claim 7, characterized in that One end of the plurality of heat-conducting pipes (224) facing away from the cavity (223) is connected to the body (1).

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