A protective film baking device for laboratory use

Abstract

The present invention discloses a laboratory protective film baking device, comprising a device body, wherein the device body is divided into a plurality of ovens by a plurality of partitions, each oven is provided with a main air supply port, each partition is provided with a bayonet, a crawler for conveying a protective film passes through the bayonet on the partition and is rotatably installed in the device body, the outer surface of the crawler for supporting the protective film is a smooth surface, and the crawler comprises a canvas layer and a high-temperature resistant layer coated on the outer surface of the canvas layer along the thickness direction.

Description

Technical Field

[0001] The invention relates to the technical field of protective film baking equipment, and in particular to a protective film baking device for a laboratory. Background Art

[0002] Existing laboratory ovens can usually only provide relatively basic services such as fixed temperature, over-temperature warning, fixed supply and exhaust air, etc. The baked items can only be baked at a specified temperature for a few minutes. If different temperature treatments are required, they must be taken out and placed in another oven with a set temperature or taken out and the oven must be re-adjusted to the temperature before subsequent experiments. This operation often causes the laboratory's R&D process to be decoupled from actual production, and many data gaps are large. The experimental data has no reference value, which is not conducive to clarifying the direction of R&D. How to solve the above technical problems is what technicians in this field are committed to solving. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a laboratory protective film baking device, which has a simple structure, is easy to operate, and has strong consistency between experimental data and actual production.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a laboratory protective film baking device, including a device body, which is divided into a plurality of ovens by a plurality of partitions, each oven is provided with a main air supply port, and each partition is provided with a bayonet. A track for conveying the protective film passes through the bayonet on the partition and is rotatably installed in the device body. The outer surface of the track for supporting the protective film is a smooth surface, and the track includes a canvas layer and a high-temperature resistant layer coated on the outer surface of the canvas layer along the thickness direction.

[0005] As a specific implementation, a plurality of the ovens are arranged in a row, each of the partitions has two bayonet holes, the two bayonet holes are arranged in parallel along the up and down directions, and a group of bayonet holes at corresponding positions on all the partitions are in the same horizontal plane.

[0006] As a specific implementation, the high temperature resistant layer adopts high temperature resistant silicone rubber.

[0007] As a specific implementation, the length of the bayonet is set to D1, the width of the track is set to D2, D2+1cm≤D1≤D2+2cm, the height of the bayonet is set to H1, the thickness of the track is set to H2, H2+2cm≤H1≤H2+3cm.

[0008] As a specific implementation, the thickness of the high temperature resistant layer on the track is controlled at 1±0.2 cm.

[0009] Preferably, the baking device further comprises a conveying roller installed in the oven and capable of rotating around its own axis, and the crawler belt is wrapped around the outer side surface of the conveying roller and rotates with the rotation of the conveying roller.

[0010] Further preferably, the baking device further comprises a driving motor installed on the device body and used for controlling the rotation or stopping of the conveying roller.

[0011] Preferably, each oven is also provided with a secondary air supply port, which is provided on a side box plate of the oven close to the latch.

[0012] As a specific implementation manner, there are four ovens, which are a low-temperature oven, a medium-temperature oven I, a high-temperature oven, and a medium-temperature oven II, respectively. Auxiliary air supply ports are provided on one side of the box plate near the bayonet of the partition on two adjacent ovens.

[0013] Further preferably, of the two auxiliary air supply openings on two adjacent ovens, the auxiliary air supply opening on the side where the oven temperature is lower is relatively larger in size.

[0014] Due to the application of the above technical scheme, the present invention has the following advantages compared with the prior art: the laboratory protective film baking device of the present invention adopts multiple ovens, and adjacent ovens are separated by a partition. During the experiment, different temperatures can be set for different ovens to simulate actual production. There is no need to take out and put in the protective film in the middle, which is highly consistent with the actual production, so that the data in the experimental process is more referenceable. At the same time, the outer surface of the track is set to a smooth surface, which prevents the protective film from wrinkling during the baking process and improves the flatness of the product. The bayonet on the partition is set as small as possible to avoid the high temperature side between the two adjacent ovens from transferring a large amount of heat to the low temperature side, thereby causing uneven baking temperatures at both ends of the protective film in the same oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the laboratory protective film baking device of the present invention;

[0016] Figure 2 for Figure 1 A longitudinal cross-sectional view of

[0017] Figure 3 A top view of the laboratory protective film baking device of the present invention;

[0018] Figure 4 is a cross-sectional view of the crawler in the present invention;

[0019] Among them: 100, device body; 1, oven; 2, partition; 3, latch; 4, main air outlet; 5, auxiliary air outlet; 6, conveyor roller; 7, drive motor; 8, crawler belt; 9, protective film; 11, low-temperature oven; 12, medium-temperature oven I; 13, high-temperature oven; 14, medium-temperature oven II; 15, control panel; 16, handle; 17, signal receiving line; 81, canvas layer; 82, high-temperature resistant layer. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] A laboratory protective film baking device includes a device body 100, which is divided into a plurality of ovens 1 by a plurality of partitions 2. A main air supply port 4 is provided on each oven 1, and a bayonet 3 is provided on each partition 2. A crawler 8 for conveying a protective film 9 passes through the bayonet 3 on the partition 2 and is rotatably installed in the device body 100. The outer surface of the crawler 8 for supporting the protective film 9 is a smooth surface, see Figure 2 As shown, the crawler 8 includes a canvas layer 81 and a high temperature resistant layer 82 coated on the outer surface of the canvas layer 81 in the thickness direction. Figure 4 shown.

[0022] Here, adjacent ovens 1 share a partition 2, and a slot 3 is provided on the partition 2 for the crawler 8 to pass through, see Figure 2 As shown, this setting method can simulate actual production when the protective film 9 is baked in the laboratory, and continuously bake at different baking temperatures, which makes the baking process convenient. For example, in a conventional laboratory oven 1, each oven 1 is relatively independent. When the protective film 9 needs to be baked at multiple different temperatures, it needs to be baked in an oven 1 with a set temperature, taken out, and then put into another oven 1 to be baked at another temperature, or taken out and wait for the temperature in the oven 1 to be readjusted before being put back in for baking. This process requires taking it in and out many times, which is cumbersome to operate. At the same time, there are differences between the experimental process and the actual production, resulting in a large difference between the experimental data and the actual production data, and it has no reference value. The baking device used in the laboratory of the present invention is similar in form to the actual production process and has strong consistency. The experimental data obtained in this way has strong reference value, which is helpful for technicians to clarify the research direction. Of course, the number of ovens 1 can be adjusted according to actual needs. Here, each oven 1 also includes an oven door 1, and the oven door 1 is provided with a handle 16 for opening and closing, see Figure 1 shown.

[0023] The purpose of providing the main air supply port 4 on the oven 1 is to ensure that the airflow in the oven 1 is stable during the baking process of the protective film 9 , so as to facilitate the stable volatilization of the solvent in the adhesive layer of the protective film 9 .

[0024] The surface of the conventionally used crawler 8 is provided with a notch, the purpose of which is to increase the friction resistance between the product and the crawler 8 and prevent the product from shifting on the crawler 8 during the baking process. However, the notch is likely to cause wrinkles at that location of the product during the baking process. For this reason, the outer surface of the crawler 8 is set to a smooth surface in the present invention. After the protective film 9 is placed on the crawler 8, the four corners of the protective film 9 can be adhered to the crawler 8 with a high-temperature resistant tape, and then removed after the baking is completed. In this way, during the baking process, the protective film 9 is not only effectively prevented from shifting on the surface of the crawler 8, but also prevented from wrinkling. The protective film 9 is adhered to the crawler 8 with a high-temperature resistant tape instead of being fixed with other clamping tools. The purpose is to reduce the size of the bayonet 3 on the partition 2 as much as possible to prevent a large amount of heat from being blown into the low-temperature side from the high-temperature side between the two adjacent ovens 1, resulting in uneven baking temperature of the entire protective film 9 in the low-temperature side oven 1. Here, the body of the crawler 8 adopts a canvas layer 81 and a high temperature resistant layer 82 coated on the outer surface of the canvas layer 81. By coating the high temperature resistant layer 82, it is helpful to delay the aging of the crawler 8. Specifically, the high temperature resistant layer 82 here adopts high temperature resistant silicone rubber.

[0025] In this example, a plurality of ovens 1 are arranged in a row, and each partition plate 2 has two bayonet openings 3, see Figure 2 As shown, two bayonet holes 3 are arranged in parallel along the vertical direction, and here, a group of bayonet holes 3 corresponding to each other on all the partitions 2 are in the same horizontal plane. The protective film 9 passes through the upper and lower groups of bayonet holes 3 in the device body 100 in sequence and is then rotatably installed in the device body 100.

[0026] In order to reduce the influence of the bayonet 3 on the temperature in the ovens 1 on both sides, here, the length of the bayonet 3 is set to D1, the width of the track 8 is set to D2, D2+1cm ≤D1≤D2+2cm, the height of the bayonet 3 is set to H1, the thickness of the track 8 is set to H2, H2+2cm≤H1≤H2+3cm.

[0027] In this example, the thickness of the high temperature resistant layer 82 on the track 8 is controlled at 1±0.2 cm. This thickness reduces the thickness of the track 8 as much as possible while ensuring that the track 8 is resistant to high temperatures, thereby further reducing the height of the bayonet 3.

[0028] In this example, the baking device further includes a conveying roller 6 installed in the oven 1 and capable of rotating around its own axis. Figure 2 As shown, the crawler belt 8 is wrapped around the outer side of the conveying roller 6 and rotates with the rotation of the conveying roller 6. Here, there is at least one group of conveying rollers 6 in each oven 1, and each group of conveying rollers 6 includes two conveying rollers 6 arranged in parallel in the vertical direction in the oven 1, and the conveying rollers 6 in adjacent ovens 1 and in opposite positions are located in the same horizontal plane.

[0029] The baking device further includes a driving motor 7 mounted on the device body 100 for controlling the rotation or stopping of the conveying roller 6. Here, the conveying rollers 6 in the plurality of ovens 1 may share one driving motor 7, see Figure 3 As shown, the conveying roller 6 is divided into an active roller and a driven roller, and the active roller is connected by a driving motor 7. The rotation and stop of the active roller are controlled by the driving motor 7, thereby driving the driven roller to rotate or stop. Of course, a driving motor 7 can also be installed in each oven 1 to independently control the transmission of the conveying roller 6 in a single oven 1.

[0030] In addition, a control panel 15 is also installed on the oven 1, see Figure 1 As shown, it is used to set parameters such as temperature and baking time. The control panel 15 is connected to the drive motor 7 through a signal receiving line 17. Figure 3 shown.

[0031] Here, each oven 1 is also provided with a secondary air supply port 5, see Figure 1 , 2 As shown in Figure 3, the auxiliary air supply port 5 is located on a side box plate of the oven 1, close to the bayonet 3. The purpose of setting the auxiliary air supply port 5 is to prevent the bayonet 3 from causing the high-temperature side between two adjacent ovens 1 to transfer heat to the low-temperature side, thereby interfering with the primary oven 1 with a low temperature, resulting in uneven baking of the protective film 9 in the oven 1 with a low temperature.

[0032] In this example, there are four ovens 1, which are low temperature oven 11, medium temperature oven I 12, high temperature oven 133, and medium temperature oven II 14, respectively. Figure 2 As shown, the auxiliary air supply port 5 is provided between adjacent ovens 1 at the bayonet 3 near the partition 2, and the auxiliary air supply port 5 on the lower temperature side of the oven 1 is larger in size among the two auxiliary air supply ports 5 on the adjacent ovens 1. By setting the auxiliary air supply port 5 on the lower temperature side to be relatively larger, the interference caused by the higher temperature side to the lower temperature side can be reduced.

[0033] Here, in order to cooperate with actual production, the main air supply port 4 and the auxiliary air supply port 5 are both arranged on the top box plate of the oven 1, the baking temperature of the low temperature oven 11 is 70°C, the baking temperature of the medium temperature oven I 12 and the medium temperature oven II 14 is 90°C, and the baking temperature of the high temperature oven 13 is 110°C. The purpose of baking in the medium temperature oven II 14 after baking in the high temperature oven 13 is to gradually cool down the protective film 9 to prevent the deformation of the protective film 9 caused by rapid cooling.

[0034] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A laboratory protective film baking device, characterized in that: The invention comprises a device body, which is divided into a plurality of ovens by a plurality of partitions, each oven is provided with a main air supply port, each partition is provided with a bayonet, a crawler for conveying a protective film passes through the bayonet on the partition and is rotatably installed in the device body, the outer surface of the crawler for supporting the protective film is a smooth surface, the crawler comprises a canvas layer and a high temperature resistant layer coated on the outer surface of the canvas layer along the thickness direction, the high temperature resistant layer adopts high temperature resistant silicone rubber, a plurality of the ovens are arranged in a row, each of the partitions has two bayonet ports, the two bayonet ports are arranged in parallel along the up and down directions, a group of bayonet ports corresponding to the positions on all the partitions are in the same horizontal plane, there are 4 ovens, which are respectively a low temperature oven, a medium temperature oven I, a high temperature oven, and a medium temperature oven II, and auxiliary air supply ports are provided on one side of the box plate near the bayonet of the partition of two adjacent ovens; the size of the auxiliary air supply port on the side with lower oven temperature of the two auxiliary air supply ports on the two adjacent ovens is relatively large.

2. The laboratory protective film baking device according to claim 1, characterized in that: The length of the bayonet is set to D1, the width of the track is set to D2, D2+1cm ≤D1≤D2+2cm, the height of the bayonet is set to H1, the thickness of the track is set to H2, H2+2cm≤H1≤H2+3cm.

3. The laboratory protective film baking device according to claim 1, characterized in that: The thickness of the high temperature resistant layer on the crawler track is controlled at 1±0.2 cm.

4. The laboratory protective film baking device according to claim 1, characterized in that: The baking device also includes a conveying roller installed in the oven and capable of rotating around its own axis. The crawler belt is wrapped around the outer side of the conveying roller and rotates with the rotation of the conveying roller.

5. The laboratory protective film baking device according to claim 4, characterized in that: The baking device also includes a driving motor installed on the device body and used for controlling the rotation or stopping of the conveying roller.

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