Curing chamber for packaging bag membrane material

Abstract

The utility model discloses a curing chamber for packaging bag film materials. The curing chamber comprises a curing bin body, an air inlet pipe opening, a hot air outlet groove and a conveying pipeline. The curing bin body comprises a bottom plate and side walls, and sliding rail cross beams are arranged on the side walls and used for loading coiled packaging bag film materials. The number of the hot air outlet grooves is multiple, the length direction of the hot air outlet grooves is perpendicular to the length direction of the curing bin body, and the multiple hot air outlet grooves are arranged in the bottom plate side by side in the length direction of the curing bin body from the front side to the rear side of the curing bin body. The interval between every two adjacent hot air outlet grooves is the same, and each hot air outlet groove is provided with a plurality of hot air outlet holes penetrating through the upper portion of the bottom plate. The multiple conveying pipelines communicate with the hot air outlet grooves in a one-to-one correspondence mode and communicate with the air inlet pipe openings correspondingly. On the basis of the curing chamber, the hot air outlet holes can be uniformly distributed in the length direction of the curing bin body, and the temperature difference caused by the hot air transfer distance in the curing bin body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag production, in particular to a curing chamber for packaging bag film materials. Background Art

[0002] Curing, also known as curing, is the process of placing the laminated plastic film of the packaging bag into a drying room to allow the main agent such as polyurethane adhesive and the curing agent to react and cross-link and interact with each other on the surface of the laminated film. The main purpose of curing is to allow the main agent and the curing agent to fully react within a certain period of time to achieve the best composite strength, and secondly to remove residual solvents with low boiling points, such as ethyl acetate. Curing control mainly involves the control of curing temperature and curing time, which are determined by the properties of the adhesive used and the final performance requirements of the product.

[0003] A common heating method in curing rooms is to introduce hot air into the curing chamber. To accommodate more packaging film, curing chambers are typically designed to be longer. After the heated air enters the curing chamber, it flows along the length of the curing chamber, forming hot air. In existing curing chambers, the temperature is higher at the end of the chamber, located near the air inlet. As the hot air flows along the transmission pipe, the temperature gradually decreases, resulting in a certain temperature difference between the two ends of the curing chamber. The packaging film in the higher temperature area has better curing effect, while the packaging film in the lower temperature area has poorer curing effect. Consequently, the packaging film in the lower temperature area may not dry up. If the curing time of all the packaging film is extended, and the glue on the packaging film in the lower temperature area is allowed to dry before removing all the packaging film, the packaging film in the higher temperature area will dry out too much due to the long and high temperature curing, resulting in excessive bonding, which is not conducive to later bag opening and filling.

[0004] Therefore, the existing curing chamber for packaging bag film materials needs to be improved. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a curing chamber for packaging bag film materials to solve the above problems.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a curing chamber for packaging bag film materials, which comprises a curing chamber body, an air inlet pipe port, a hot air outlet slot and a transmission pipeline.

[0008] The vents are connected to the top of the oven to ventilate the hot air inlet, and the vents are connected to the top of the oven to ventilate the hot air inlet.

[0009] Preferably, the connection point between the hot air outlet slot and the transmission pipe is located at the midpoint of the hot air outlet slot in the length direction thereof.

[0010] Preferably, the arrangement of the multiple hot air outlet holes on the hot air outlet duct becomes increasingly dense as the distance from the connection point between the hot air outlet duct and the transmission pipe increases.

[0011] Preferably, the maturation bin body further comprises a bin roof covered on the side wall, and an exhaust outlet is provided on the bin roof.

[0012] Preferably, the exhaust outlet is communicated with a filter box, and an activated carbon filter is provided in the filter box.

[0013] Preferably, the front side of the maturation bin further includes sealed doors respectively connected to the two side walls, and the sealed doors are provided with heat-insulating handles.

[0014] Preferably, two slide rail beams are arranged in parallel on each of the side walls, and the slide rail beams on the two side walls are symmetrical to each other.

[0015] The technical effects achieved by the technical solution of this utility model mainly include:

[0016] Based on the above arrangement of the curing chamber for the packaging bag film, since the hot air outlet slots are evenly distributed along the length of the curing chamber, the hot air flow discharged from the hot air outlet holes can be more evenly filled into the curing chamber, thereby reducing the temperature difference in the longitudinal direction of the curing chamber. This ensures that the curing effect of the plastic film at both ends of the curing chamber is roughly the same, thus avoiding the problem of the packaging bag film in the high-temperature area being cured for too long and inconvenient for later bag opening and filling, or the problem of the packaging bag film in the low-temperature area being cured for too short a time, resulting in the glue not drying.

[0017] The hot air outlet duct and transmission duct are set in the bottom plate to adapt to the mechanism that the high-temperature air flow has a low density and will rise. Hiding in the bottom plate avoids occupying the space of the side wall where the packaging bag film material is required, which is conducive to the layout of more hot air outlet ducts and transmission ducts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a curing chamber for packaging bag film provided by the present invention;

[0019] Figure 2 Schematic diagram of the internal structure of the curing chamber for the packaging bag film material;

[0020] Figure 3 To correspond Figure 2 A partial enlarged view of the circular dotted box area A.

[0021] The reference numerals in the above drawings are:

[0022] Curing silo body 1, bottom plate 11, side wall 12, slide rail beam 121, sealing door 122, silo roof 13, exhaust outlet 131;

[0023] Inlet pipe 2;

[0024] Hot air outlet slot 3, hot air outlet hole 30;

[0025] Transmission pipeline 4. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the present invention more apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the present invention shown in and described with reference to the accompanying drawings are merely exemplary, and the present invention is not limited to these embodiments.

[0027] In order to avoid obscuring the present invention due to unnecessary details, the accompanying drawings only show structures and / or processing steps that are closely related to the solution according to the present invention, while omitting other details that are not very relevant. Figure 2 and Figure 3 The dotted line portion represents the structure hidden under the bottom plate 11 in the original viewing angle after perspective. Figure 2 A portion of the structure obscuring the interior of the maturing chamber has been omitted to more clearly show the interior.

[0028] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a curing chamber for packaging bag film materials, which includes a curing chamber body 1, an air inlet pipe port 2, a hot air outlet slot 3 and a transmission pipeline 4.

[0029] The curing bin body 1 includes a bottom plate 11 and side walls 12 vertically connected to the left and right sides of the bottom plate 11. The side walls 12 are provided with slide rail beams 121 along the length direction of the curing bin body 1 for loading rolled packaging bag film.

[0030] Combine Figure 2 and Figure 3 As shown, the air inlet port 2 is opened on the side wall 12, and one end of the air inlet port 2 is connected to the hot air blower;

[0031] There are multiple hot air outlet slots 3, and the length direction of the hot air outlet slots 3 is perpendicular to the length direction of the maturation bin 1. From the front side to the rear side of the maturation bin 1, the multiple hot air outlet slots 3 are arranged side by side in the bottom plate 11 along the length direction of the maturation bin 1. The intervals between every two adjacent hot air outlet slots 3 are the same. Each hot air outlet slot 3 is provided with a plurality of hot air outlet holes 30 that pass through the top of the bottom plate 11.

[0032] There are multiple transmission pipes 4 arranged in the base plate 11 . The multiple transmission pipes 4 are connected to the hot air outlet slots 3 one by one, and the multiple transmission pipes 4 are each connected to the other end of the air inlet port 2 .

[0033] When the curing chamber for the packaging bag film material is operating, the hot air blower introduces a hot air flow into each transmission pipe 4 through the air inlet port 2. The hot air flow is transported along each transmission pipe 4 to the corresponding hot air outlet slots 3, and then discharged from the hot air outlet holes 30 on each hot air outlet slot 3. The hot air flow heats and cures the rolled packaging bag film material supported by the upper slide rail crossbeam 121. Due to the above arrangement of the hot air outlet slots 3, the hot air outlet holes 30 can be evenly distributed along the length of the curing bin 1, reducing the temperature difference in the length of the curing bin 1. This ensures that the curing effect of the plastic film at both ends of the curing bin 1 is roughly the same, thereby avoiding the problem of the packaging bag film material in the high-temperature zone being cured for too long and inconvenient for later bag opening and filling, or the problem of the packaging bag film material in the low-temperature zone being cured for a short time, resulting in the glue not drying.

[0034] The hot air outlet slots 3 and the transmission pipes 4 are arranged in the bottom plate 11, which adapts to the mechanism that the high-temperature airflow has a low density and rises. They are hidden in the bottom plate 11 to avoid occupying the space of the side wall 12, which is conducive to the layout of more hot air outlet slots 3 and transmission pipes 4.

[0035] Furthermore, the connection point between the hot air outlet trough 3 and the transmission duct 4 is located at the midpoint of the hot air outlet trough 3 along its length. Therefore, the hot air entering the hot air outlet trough 3 will diffuse from the central area of the hot air outlet trough 3 to its ends. Moreover, as the distance from the connection point between the hot air outlet trough 3 and the transmission duct 4 increases, the arrangement of the multiple hot air outlet holes 30 on the hot air outlet trough 3 gradually becomes denser. In other words, by arranging relatively fewer hot air outlet holes 30 at the midpoint of the hot air outlet trough 3 along its length, and relatively more hot air outlet holes 30 closer to the ends of the hot air outlet trough 3, the hot air outlet holes 30 are appropriately arranged according to the length of the hot air transmission path, making the hot air flow distribution more uniform. In addition, to accommodate the uniform distribution of the hot air outlet trough 3 and facilitate the arrangement of the transmission duct 4, the air inlet duct 2 is located at the midpoint of the bottom edge of the side wall 12.

[0036] Specifically, the curing bin 1 also includes a bin roof 13 mounted on the side wall 12. The bin roof 13 is provided with an exhaust outlet 131 and a corresponding opening and closing structure. After the packaging film is cured, air can be discharged from the exhaust outlet 131, forming an air circulation.

[0037] Because the adhesive and curing agent in the plastic film emit a strong odor, and the aging chamber is sealed for a long time, this can affect the health of workers. Therefore, the exhaust outlet 131 is further connected to a filter box, which is equipped with an activated carbon filter. The activated carbon filter can filter the exhaust airflow, reduce odor, and minimize the impact on worker health.

[0038] Specifically, the front side of the maturation bin 1 further includes a sealed door 122 connected to the two side walls 12 respectively. The sealed door 122 is provided with an insulating handle to prevent burns to workers who come into contact with the sealed door 122 due to residual heat in the maturation chamber when the sealed door 122 is opened.

[0039] Two slide rail beams 121 are arranged in parallel on each side wall 12 , and the slide rail beams 121 on the two side walls 12 are symmetrical to each other. The curing warehouse body 1 can be loaded with two rows of rolled packaging bag film materials.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0041] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A curing chamber for packaging bag film, characterized in that: It includes: A maturation bin body (1), the maturation bin body (1) comprising a bottom plate (11) and side walls (12) vertically connected to the left and right sides of the bottom plate (11), the side walls (12) being provided with slide rail beams (121) along the length direction of the maturation bin body (1) for loading rolled packaging bag film; An air inlet (2), the air inlet (2) being provided on the side wall (12), one end of the air inlet (2) being in communication with a hot air blower; Hot air outlet slots (3), the number of the hot air outlet slots (3) is multiple, the length direction of the hot air outlet slots (3) is perpendicular to the length direction of the ripening bin (1), from the front side to the rear side of the ripening bin (1), the multiple hot air outlet slots (3) are arranged in parallel in the bottom plate (11) along the length direction of the ripening bin (1), the intervals between each two adjacent hot air outlet slots (3) are the same, and each of the hot air outlet slots (3) is provided with a plurality of hot air outlet holes (30) penetrating to the top of the bottom plate (11); The transmission pipes (4) are multiple in number and are arranged in the base plate (11). The multiple transmission pipes (4) are connected to the hot air outlet slots (3) in a one-to-one correspondence, and the multiple transmission pipes (4) are each connected to the other end of the air inlet port (2).

2. The aging chamber for packaging bag film according to claim 1, characterized in that: The connection point between the hot air outlet slot (3) and the transmission pipe (4) is located at the midpoint of the hot air outlet slot (3) in the length direction thereof.

3. The aging chamber for packaging bag film according to claim 1, characterized in that: As the distance from the connection point between the hot air outlet slot (3) and the transmission pipe (4) increases, the arrangement of the multiple hot air outlet holes (30) on the hot air outlet slot (3) becomes increasingly dense.

4. The aging chamber for packaging bag film according to claim 1, characterized in that: The maturation silo body (1) further comprises a silo roof (13) which is covered on the side wall (12), and an exhaust outlet (131) is provided on the silo roof (13).

5. The aging chamber for packaging bag film according to claim 4, characterized in that: The exhaust outlet (131) is communicated with a filter box, and an activated carbon filter is provided in the filter box.

6. The aging chamber for packaging bag film according to claim 1, characterized in that: The front side of the maturation bin body (1) further comprises a sealed door (122) connected to the two side walls (12) respectively, and the sealed door (122) is provided with a heat-insulating handle.

7. The aging chamber for packaging bag film according to claim 1, characterized in that: Two slide rail beams (121) are arranged in parallel on each side wall (12), and the slide rail beams (121) on the two side walls (12) are symmetrical to each other.

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