Thermal packaging mechanism for packaging bottle labels of baby sunscreen lotion

Abstract

The utility model belongs to the technical field of cosmetic packaging, and particularly relates to a thermal packaging mechanism for labels of baby sunscreen lotion packaging bottles. The hot air box is arranged above the conveying belt; the electric heating box is fixed to the top of the hot air box, and a resistance wire heating assembly is arranged in the electric heating box; the fan is mounted at the top end of the electric heating box; the interlayer is arranged in the hot air box, the top of the interlayer is communicated with the electric heating box, and the bottom of the interlayer is connected with at least two hot air mechanisms; the hot air mechanism comprises adjusting plates, a corrugated hose and a hot air sleeve, the adjusting plates are fixed to one side of the conveying belt through a base, the adjusting plates are arranged in pairs and provided with a plurality of parallel adjusting grooves in the transverse direction, and the two ends of the hot air sleeve are inserted into the adjusting grooves through connecting rods. The height of the hot air sleeve can be adjusted through the cooperation of the adjusting plate and the adjusting groove, the hot air sleeve can adapt to packaging bottles of different specifications, and the universality of equipment is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of cosmetic packaging technology, specifically relating to a heat sealing mechanism for labels on baby sunscreen bottles. Background Technology

[0002] In the cosmetics packaging industry, baby sunscreen bottles serve functions such as product protection, ease of use, safety, and information display. The exterior of these bottles typically requires a thermoplastic film and is heat-shrinkable using a hot air sealing mechanism. Existing technology often employs a fixed structure design in sealing equipment (as described in a recent hot air mechanism application by the applicant), with the hot air blower located at the bottom and the air box at the top, the distance between the blower and the bottle being non-adjustable. This layout results in significant energy loss during hot air transmission, especially for bottles of varying heights, making it difficult to precisely control the contact distance between the hot air and the bottle, thus affecting sealing effectiveness and energy efficiency.

[0003] Furthermore, traditional packaging mechanisms suffer from poor hot air distribution uniformity, and a single hot air system struggles to simultaneously meet the dual requirements of preheating and shaping, resulting in slow packaging speeds and inconsistent quality. Additionally, due to their fixed structure, the equipment has limited adaptability to different bottle sizes, necessitating frequent component replacements to accommodate new products, thus increasing production costs and operational complexity. Utility Model Content

[0004] The purpose of this utility model is to provide a heat-sealing mechanism for labeling infant sunscreen bottles, so as to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A heat-sealing mechanism for labeling infant sunscreen bottles includes:

[0007] Conveyor belt;

[0008] A hot air box is positioned above the conveyor belt;

[0009] An electric heating box is fixed to the top of the hot air box and has a resistance wire heating assembly inside;

[0010] A fan, installed at the top of the electric heating box, is used to deliver heated air to the hot air box;

[0011] A partition is located inside the hot air box, with its top connected to the electric heating box and its bottom connected to at least two sets of hot air mechanisms.

[0012] The hot air mechanism includes an adjusting plate, a corrugated hose, and a hot air sleeve. The adjusting plate is fixed to one side of the conveyor belt by a base. The adjusting plates are arranged in pairs and have several parallel adjusting slots in the transverse direction. The two ends of the hot air sleeve are inserted into the adjusting slots by connecting rods. The top of the hot air sleeve is connected to the bottom of the partition through the corrugated hose.

[0013] Preferably, the adjusting grooves are spaced apart along the height direction of the adjusting plate, and the connecting rod adjusts the vertical distance between the hot air sleeve and the conveyor belt by adjusting the position of the adjusting grooves.

[0014] Preferably, at least two sets of the hot air mechanism are provided, one for preheating and the other for shaping the packaging bottle.

[0015] Preferably, the air outlet of the hot air jacket faces upwards from the conveyor belt, and the width of the air outlet matches the area covered by the thermoplastic film of the packaging bottle.

[0016] Preferably, the corrugated hose is a high-temperature resistant flexible tube, and its length can be extended or retracted according to the height of the hot air jacket.

[0017] Preferably, the adjusting plate is detachably connected to the base by bolts or a snap-fit ​​structure.

[0018] The beneficial effects of this utility model are as follows: The adjustable height of the hot air jacket is achieved through the cooperation of the adjusting plate and the adjusting groove, making it adaptable to different specifications of packaging bottles and significantly improving the equipment's versatility; the optimized layout of the hot air box shortens the hot air transmission path, and the efficient heat circulation design combined with the electric heating box and fan reduces energy consumption by more than 30%; the dual-station hot air mechanism (preheating + shaping) enables staged processing of thermoplastic film, improving packaging uniformity by 40% and reducing the defect rate to below 0.5%; the high-temperature resistant corrugated hose and detachable adjusting plate structure ensure convenient equipment maintenance and adapt to the rapid changeover needs of the production line; the directional hot air jacket accurately covers the packaging film area, improving thermal efficiency by 25% while reducing heat loss, achieving efficient and energy-saving packaging. Attached Figure Description

[0019] Figure 1 This is the front view of this utility model;

[0020] Figure 2 yes Figure 1 A cross-sectional view along the EE direction;

[0021] Figure 3 This is a front view of the adjusting plate in this utility model;

[0022] Figure 4 This is a side view of the present invention. Detailed Implementation

[0023] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0024] like Figure 1-3 As shown, a heat-sealing mechanism for labeling infant sunscreen bottles includes a conveyor belt 1 and a hot air box 2. The hot air box is installed on the upper part of the conveyor belt. An electric heating box 3 is provided on the upper part of the hot air box 2. The electric heating box uses resistance wire heating. A fan 4 is provided on the upper part of the electric heating box. The fan blows the heat from the electric heating box into the hot air box. The top of the hot air box has a partition 21. The upper part of the partition is connected to the electric heating box. The lower part of the partition is connected to at least two sets of hot air mechanisms 5. The hot air mechanism includes an adjusting plate 51, a corrugated hose 52, and hot air... The adjusting plate 53 is fixed to one side of the conveyor belt via a base 54. The adjusting plate has several parallel adjusting slots 55 running horizontally from top to bottom. The vertical spacing between each set of adjusting slots is 5-10 mm. The adjusting plates are arranged in pairs. Connecting rods 56 are fixed to both ends of the hot air sleeve, and these rods are inserted into the adjusting slots. Because the adjusting slots are at different heights, the connecting rods can control the height of the hot air sleeve from the conveyor belt, thus adapting to packaging bottles of different heights. The upper part of the hot air sleeve is connected to the bottom of the partition via a corrugated hose. The corrugated hose is made of silicone or fluoroplastic, and its length can freely extend and retract according to the height of the hot air sleeve. One end is connected to the bottom of the partition, and the other end is connected to the top of the hot air sleeve. The hot air generated by the hot air box 2 enters the corrugated hose through the partition, and then is blown from the top of the hot air sleeve onto the packaging bottle with the thermoplastic film. This device has two sets of hot air mechanisms: one preheats the packaging bottle, and the other sets it for shaping. Multiple sets can also be set up in parallel.

[0025] The equipment can be configured with 2-4 sets of hot air mechanisms. The first 1-2 sets are preheating stations (temperature 180-200℃), and the last 1-2 sets are shaping stations (temperature 200-220℃). The packaging quality is improved by using different temperature gradients.

[0026] In this device, the conveyor belt speed is matched with the spacing of the hot air mechanism to ensure that the packaging bottle stays at each station for 3-5 seconds, which meets the shrinkage requirements of the thermoplastic film.

[0027] Furthermore, the adjusting plate 51 is detachably connected to the base 54 by bolts, facilitating the replacement of plates with different adjusting groove densities to meet specific needs. A guide plate can be added to the air outlet of the hot air jacket 53, or nozzles of different diameters can be replaced to optimize the hot air coverage.

[0028] This heat sealing mechanism draws ambient air into an electric heating box via a fan, heats it to 180-220℃ via resistance wire, and then sends it into a hot air box. The hot air is distributed through a partition to multiple adjustable-height hot air mechanisms. The adjustment plate of each hot air mechanism works with the adjustment groove and connecting rod to flexibly adjust the vertical distance (50-150mm) between the hot air jacket outlet and the bottle body according to the height of the packaging bottle. The hot air enters the hot air jacket through a high-temperature resistant corrugated hose and is blown vertically onto the packaging bottle covered with thermoplastic film from the bottom directional air outlet. Through staged temperature control (preheating 180-200℃, shaping 200-220℃), the heat shrink film is uniformly shrunk and shaped. The conveyor belt transports the packaging bottle synchronously, ensuring that the packaging bottle stays at each station for 3-5 seconds, completing the efficient and energy-saving heat sealing process.

[0029] It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A label heat-sealing mechanism for a baby sunscreen cream package bottle, characterized by, The utility model relates to a kind of hot air drying device for packaging bottle, including: Conveyer belt (1); Hot air box (2), is arranged above the conveyer belt; Electric heating box (3), is fixed to the top of the hot air box, and inside is equipped with resistance wire heating assembly; Fan (4), is installed at the top of the electric heating box, for the heated air is delivered to the hot air box; Partition (21), is located in the hot air box, and its top is communicated with the electric heating box, and bottom is connected at least two sets of hot air mechanism (5); The hot air mechanism (5) includes adjusting plate (51), corrugated hose (52) and hot air cover (53), the adjusting plate is fixed to one side of conveyer belt by pedestal (54), the adjusting plate is arranged in pairs and is opened with several parallel adjusting grooves (55) along transverse direction, both ends of the hot air cover are inserted in the adjusting groove by connecting rod (56), and the top of the hot air cover is communicated with the bottom of the partition by the corrugated hose.

2. The apparatus for heat sealing of sunscreen cream packaging bottle label for baby and child according to claim 1, wherein The adjusting groove (55) is spaced along the height direction of the adjusting plate (51), and the connecting rod (56) adjusts the vertical distance between the hot air cover (53) and the conveyer belt (1) by the position of the adjusting groove.

3. The apparatus for heat sealing of sunscreen cream package for baby and child according to claim 1, wherein The hot air mechanism (5) is provided with at least two sets, and is used for preheating and shaping packaging bottle respectively.

4. The apparatus for heat sealing of sunscreen cream package for baby and child according to claim 1, wherein The air outlet of the hot air cover (53) is towards the top of the conveyer belt (1), and the width of the air outlet matches the thermoplastic film covering area of packaging bottle.

5. The apparatus for heat sealing of sunscreen cream package for baby and child as claimed in claim 1 wherein, The corrugated hose (52) is high-temperature-resistant flexible pipe, and its length can be telescopic with the height adjustment of the hot air cover (53).

6. The apparatus for heat sealing of sunscreen cream package for baby and child as claimed in claim 1 wherein, The adjusting plate (51) is detachably connected with the pedestal (54) by bolt or buckle structure.

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