Solvent condensation resisting structure between casting section and mold of cast film production workshop
By installing heating structures in the casting section and mold area of the cast film production workshop, the problem of raw material condensation was solved, improving product quality and the safety of the working environment.
Patent Information
- Application Number
- CN202422929869.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-29
AI Technical Summary
During the production of cast film, raw materials volatilize and condense under high temperature conditions, leading to a decline in product quality and an unsafe working environment. In particular, it is difficult to effectively avoid the problem of solvent condensation between the casting section and the mold.
Heating structures, including uniformly arranged heating pipes and hot air devices, are installed in the casting section and mold room of the cast film production workshop to ensure that the temperature of the mold room floor and the ceiling of the casting section is matched to prevent condensation.
The application of heating structures prevents raw material condensation, thereby improving product quality and workplace safety.
Smart Images
Figure CN223573604U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the anti solvent condensation structure of casting section and mould room of casting film production workshop. BACKGROUND
[0002] Polyimide (PI) film has excellent mechanical, thermal and electrical insulation performance, and is widely used in microelectronics, rail transportation, aerospace and other fields. At present, domestic enterprises mostly use thermal imidization process (thermal method) to prepare polyimide film, while foreign countries generally use chemical imidization process (chemical method), that is, using catalyst and dehydrating agent to rapidly imidize polyamide acid (PAA), compared with the thermal method process which only relies on heating to promote imidization, the PI film prepared by the chemical method process has fast speed, large width and more excellent performance. The thermal imidization process equipment is relatively mature in China, but the materials for making film are processed under high temperature conditions, and in a sealed environment, due to the high temperature, the volatilization and vaporization of raw materials are inevitable, especially in the casting section and mold room.
[0003] The gas volatilized from the casting section is easy to condense on the ceiling above, and if liquid droplets are generated after condensation, they will drop to the conveying steel belt, affecting the product quality. Since the mold room is connected with the casting section, it is difficult to achieve complete sealing, and the vaporization problem will also affect the upper mold room. The volatilized gas condenses generally on the floor below the mold room, resulting in a dirty and slippery floor. The mold room needs to be replaced as required, and manual replacement is currently used. The slippery floor makes it inconvenient for workers to work, and the safety needs to be improved. UTILITY MODEL CONTENTS
[0004] The main purpose of the utility model is to provide an anti solvent condensation structure for the casting section and mold room of a casting film production workshop, to avoid the condensation problem of raw materials during production.
[0005] The technical means adopted by the utility model are as follows. An anti solvent condensation structure for the casting section and mold room of a casting film production workshop, the casting film production workshop comprises a casting section and a mold room, the mold room is located above the casting section, the mold room is provided with a die head, the die head passes through a hole between the mold room and the casting section, the bottom of the mold room is a mold room floor, the top of the casting section is a casting section ceiling, and a heating structure is installed on the mold room floor and the casting section ceiling to heat the mold room floor and the casting section ceiling.
[0006] The mold room floor and the casting section ceiling are a common same plate body.
[0007] The heating structure is uniformly arranged inside the mold room floor and the casting section ceiling.
[0008] The heating structure is arranged outside the mold room floor and the cast section ceiling.
[0009] The heating structure is a uniformly arranged heating pipe connected with a control device to control the heating temperature.
[0010] The mold room is provided with a hot air device or a heating coil to adapt the temperature of the upper and lower areas.
[0011] The beneficial effects of the utility model: the utility model heats the mold room floor and the cast section ceiling, avoids condensation, improves product yield, and enhances the safety of the working space. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 The structure of the utility model is shown.
[0013] Figure 2 The arrangement of the heating structure of the utility model is shown. DETAILED DESCRIPTION
[0014] Please refer to Figure 1 As shown in the figure, an anti-solvent condensation structure of a cast film production workshop cast section and mold room, the cast film production workshop includes a cast section 1 and a mold room 2, the mold room 2 is located above the cast section 1, the mold room 2 is provided with a die head 3, the die head 3 passes through the hole 4 between the mold room 2 and the cast section 1, the die head extrudes the prepared raw material through the hole to the steel belt of the cast section to produce the product, the preparation of the product and related equipment are not the focus of the case, and will not be described here. The focus of the case is that the bottom of the mold room 2 is a mold room floor 21, the top of the cast section 1 is a cast section ceiling 11, and the heating structure A is installed in the mold room floor 21 and the cast section ceiling 11 to heat the mold room floor 21 and the cast section ceiling 11. In this embodiment, the heating structure A is arranged inside the mold room floor 21 and the cast section ceiling 11, and can also be arranged on the upper surface and the lower surface of the mold room floor 21 and the cast section ceiling 11, as long as it can heat. It can be set up completely, or it can be set up according to the actual situation in the corresponding local position, which is a choice that can be made by ordinary technicians in the field. For example Figure 2 As shown in the figure, the heating structure A is preferably a uniformly arranged heating pipe A1, which is connected with a control device (not marked in the figure) to control the heating temperature. The heating temperature is set according to the requirements, and the condensation is not generated. In addition, the heating structure of the cast section ceiling and the mold room floor can be controlled respectively, and heated at different temperatures.
[0015] In this embodiment, in order to be compact, the mold room floor 21 and the cast section ceiling 11 can also be a common plate body, so that only one set of common heating structure is needed.
[0016] In addition, the mold room 2 can also be provided with a hot air device 5 or a heating coil to match the temperature of the upper and lower areas.
[0017] With the above structure, the floor of the mold room and the ceiling of the casting section in the casting film production workshop can be heated, avoiding condensation problems, improving product yield, and enhancing the safety of the working space.
Claims
1. An anti-solvent condensation structure between the casting section and the mold in a cast film production workshop, the cast film production workshop comprising a casting section (1) and a mold room (2), the mold room (2) being located above the casting section (1), the mold room (2) being provided with a die head (3), the die head (3) passing through a hole (4) between the mold room (2) and the casting section (1), characterized in that, The bottom of the mold room (2) is the mold room floor (21), and the top of the casting section (1) is the casting section ceiling (11). A heating structure (A) is installed on the mold room floor (21) and / or the casting section ceiling (11) to heat the mold room floor (21) and / or the casting section ceiling (11).
2. The anti-solvent condensation structure between the casting section and mold in the casting film production workshop as described in claim 1, characterized in that, The floor (21) of the mold room and the ceiling (11) of the casting section are the same shared plate.
3. The anti-solvent condensation structure between the casting section and mold in the casting film production workshop as described in claim 1, characterized in that, The heating structure (A) is evenly distributed inside the mold room floor (21) and the casting section ceiling (11).
4. The anti-solvent condensation structure between the casting section and mold in the casting film production workshop as described in claim 1, characterized in that, The heating structure (A) is located outside the mold room floor (21) and the ceiling of the casting section (11).
5. The anti-solvent condensation structure between the casting section and mold in the casting film production workshop as described in claim 3 or 4, characterized in that, The heating structure (A) consists of uniformly arranged heating tubes connected to a control device to control the heating temperature.
6. The anti-solvent condensation structure between the casting section and mold in the casting film production workshop as described in any one of claims 1 to 4, characterized in that, The mold compartment (2) is equipped with a hot air device (5) or a heating coil to achieve temperature matching between the upper and lower areas.
7. The anti-solvent condensation structure between the casting section and mold in the casting film production workshop as described in claim 5, characterized in that, The mold compartment (2) is equipped with a hot air device (5) or a heating coil to achieve temperature matching between the upper and lower areas.