Polyimide film raw material solution preparation device

Abstract

The utility model relates to a polyimide film raw material solution preparation device which comprises a dissolving tank, a heating sleeve arranged outside the dissolving tank, a heating coil arranged in the heating sleeve, a stirring shaft arranged in the dissolving tank, a stirring blade arranged at the lower end of the stirring shaft, a stirring motor connected with the stirring shaft, a liquid outlet arranged at the bottom of the dissolving tank, and a liquid inlet pipe arranged at the top of the dissolving tank, a lower grinding disc is fixedly arranged on the stirring shaft, a circular-truncated-cone-shaped inclined plane is arranged at the top of the lower grinding disc, an upper grinding disc is arranged above the lower grinding disc, the upper grinding disc is installed on the inner wall of the dissolving tank through a fixing rod, the shape of the bottom of the upper grinding disc is matched with that of the circular-truncated-cone-shaped inclined plane, a plurality of through holes are formed in the circumference of the circular-truncated-cone-shaped inclined plane, and discharging straight pipes are arranged in the through holes; the top of the discharging straight pipe is connected with a discharging guide pipe, a plurality of resin feeding ports are formed in the top of the dissolving tank, and the discharging guide pipe is connected with the resin feeding ports. According to the utility model, entering polyimide resin can be primarily ground and then stirred and dissolved, so that the dissolving configuration efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of polyimide film preparation, especially to a polyimide film raw material solution preparation device. BACKGROUND

[0002] Solution casting method is a common polyimide film preparation method, and its main steps include solution preparation, substrate processing, casting film forming, drying, etc. The preparation of polyimide film first needs to prepare a solution. Generally, polyimide resin is dissolved in an organic solvent, and heated and stirred to obtain a uniform polyimide solution.

[0003] In the dissolution process of polyimide resin and organic solvent, the resin is directly added for stirring and dissolution, which is low in efficiency and slow in dissolution progress. INVENTION CONTENTS

[0004] The utility model aims at solving the prior art's insufficient, and provides a kind of polyimide film raw material solution preparation device.

[0005] The utility model discloses the following technical scheme to realize the above-mentioned purpose:

[0006] A polyimide film raw material solution preparation device, comprising a dissolving tank, a heating jacket is provided outside the dissolving tank, and a heating coil is provided in the heating jacket; a stirring shaft is provided in the dissolving tank, and a stirring paddle is provided at the lower end of the stirring shaft; the stirring shaft is connected to a stirring motor; a liquid discharge port is provided at the bottom of the dissolving tank; a liquid inlet pipe is provided at the top of the dissolving tank; a lower grinding disc is fixedly provided on the stirring shaft; a circular truncated cone inclined surface is provided at the top of the lower grinding disc; an upper grinding disc is provided above the lower grinding disc; the upper grinding disc is installed on the inner wall of the dissolving tank through a fixing rod; the shape of the bottom of the upper grinding disc matches the circular truncated cone inclined surface; a plurality of through holes are provided circumferentially on the circular truncated cone inclined surface; a lower discharge straight pipe is provided in the through hole; a lower discharge conduit is connected to the top of the lower discharge straight pipe; a plurality of resin feed ports are provided at the top of the dissolving tank; and the lower discharge conduit is connected to the resin feed port.

[0007] An ultrasonic transducer is provided at the bottom of the dissolving tank, and the ultrasonic transducer is connected to an ultrasonic power supply.

[0008] A temperature sensor is provided at the bottom of the dissolving tank, and the temperature sensor is connected to a controller.

[0009] The lower end of the liquid inlet pipe that extends into the interior of the dissolving tank is inclined to the inner wall of the dissolving tank.

[0010] The utility model has the advantages that the polyimide resin entering can be preliminarily ground, and then stirred and dissolved, thereby improving the efficiency of dissolution and preparation. DRAWINGS

[0011] Figure 1 The utility model discloses a structure schematic view.

[0012] In the figure: 1 - dissolving tank; 2 - heating coil; 3 - stirring shaft; 4 - stirring paddle; 5 - liquid outlet; 6 - liquid inlet pipe; 7 - lower grinding disc; 8 - circular truncated cone slope; 9 - upper grinding disc; 10 - fixed rod; 11 - through hole; 12 - discharging straight pipe; 13 - discharging guide pipe; 14 - resin inlet; 15 - ultrasonic transducer; 16 - ultrasonic power supply; 17 - temperature sensor; 18 - controller; 19 - heat preservation plate; 20 - through hole;

[0013] The utility model will be described below in conjunction with the embodiment of the utility model with reference to the drawings. DETAILED DESCRIPTION

[0014] The principles and features of the utility model will be described below in conjunction with the drawings, and the examples are only used to explain the utility model and not to limit the scope of the utility model. The utility model will be described in more detail in the following paragraphs with reference to the drawings. The advantages and features of the utility model will be clearer according to the following description. It should be noted that the drawings are very simplified and use non-precise proportions, and are only used to facilitate and clarify the purpose of assisting the description of the embodiments of the utility model.

[0015] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as "disposed on" another component, it can be directly disposed on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0017] The utility model will be further described below in conjunction with the drawings and examples:

[0018] As Figure 1As shown, a kind of polyimide film raw material solution preparation device, including dissolving tank 1, heating coil 2, stirring shaft 3, stirring paddle 4, discharge port 5, liquid inlet pipe 6, lower grinding disc 7, circular truncated cone inclined surface 8, upper grinding disc 9, fixed rod 10, through-hole 11, blanking straight pipe 12, blanking conduit 13, resin feed inlet 14, ultrasonic transducer 15, ultrasonic power supply 16, temperature sensor 17, controller 18, heat preservation plate 19 and through hole 20.

[0019] Dissolving tank 1 is provided with heating jacket and heating coil 2 is arranged in the heating jacket, stirring shaft 3 is arranged in the dissolving tank 1 and stirring paddle 4 is arranged at the lower end of the stirring shaft 3, stirring motor is connected to the stirring shaft 3, discharge port 5 is arranged at the bottom of the dissolving tank 1, liquid inlet pipe 6 is arranged at the top of the dissolving tank 1, lower grinding disc 7 is fixedly arranged on the stirring shaft 3, circular truncated cone inclined surface 8 is arranged at the top of the lower grinding disc 7, upper grinding disc 9 is arranged above the lower grinding disc 7 and is installed on the inner wall of the dissolving tank 1 through fixed rod 10, the shape of the bottom of the upper grinding disc 9 matches with the circular truncated cone inclined surface 8, a plurality of through-holes 11 are arranged on the circumference of the circular truncated cone inclined surface 8, blanking straight pipe 12 is arranged in the through-hole 11, blanking conduit 13 is connected to the top of the blanking straight pipe 12, a plurality of resin feed inlets 14 are arranged at the top of the dissolving tank 1, and the blanking conduit 13 is connected to the resin feed inlet 14.

[0020] In the utility model, polyimide resin enters the grinding space between the upper grinding disc 9 and the lower grinding disc 7 through blanking conduit 13 and blanking straight pipe 12, the lower grinding disc 7 rotates under the driving of the stirring shaft 3, the upper grinding disc 9 and the lower grinding disc 7 grind the polyimide resin, and the ground powder continuously enters the organic solvent through the circular truncated cone inclined surface 8 and is stirred and dissolved again, so that the efficiency of dissolving and configuring is improved.

[0021] The ultrasonic transducer 15 is arranged at the bottom of the dissolving tank 1, the ultrasonic transducer 15 is connected to the ultrasonic power supply 16, the ultrasonic transducer 15 emits ultrasonic waves, and the process of dissolving and configuring can be accelerated.

[0022] The temperature sensor 17 is arranged at the bottom of the dissolving tank 1, the temperature sensor 17 is connected to the controller 18, the temperature sensor 17 can monitor the temperature of dissolving at any time, and the temperature is prevented from being too high or too low.

[0023] The heat preservation plate 19 is arranged outside the heating jacket of the dissolving tank 1.

[0024] The lower end of the liquid inlet pipe 6 extending into the interior of the dissolving tank 1 is arranged to be inclined to the inner wall of the dissolving tank 1, so that the entering organic solvent can flow along the inner wall of the dissolving tank 1, and splashing is avoided.

[0025] The stirring paddle 4 is provided with a plurality of through holes 20.

[0026] The utility model has been described exemplarily above in combination with the drawings, and obviously, the utility model is not limited by the above-mentioned mode in the specific implementation, and various improvements adopting the method concept and technical scheme of the utility model or direct application in other occasions without improvement are all within the protection scope of the utility model.

Claims

1. A polyimide film raw material solution preparation apparatus, characterized in that, The utility model relates to a resin dissolving device, which comprises a dissolving tank (1), a heating jacket is arranged outside the dissolving tank (1), a heating coil (2) is arranged in the heating jacket, a stirring shaft (3) is arranged in the dissolving tank (1), a stirring paddle (4) is arranged at the lower end of the stirring shaft (3), the stirring shaft (3) is connected with a stirring motor, a liquid discharge port (5) is arranged at the bottom of the dissolving tank (1), a liquid inlet pipe (6) is arranged at the top of the dissolving tank (1), a lower grinding disc (7) is fixedly arranged on the stirring shaft (3), a circular truncated cone inclined surface (8) is arranged at the top of the lower grinding disc (7), an upper grinding disc (9) is arranged above the lower grinding disc (7), the upper grinding disc (9) is installed on the inner wall of the dissolving tank (1) through a fixing rod (10), the shape of the bottom of the upper grinding disc (9) is matched with the circular truncated cone inclined surface (8), a plurality of through holes (11) are arranged in the circumferential direction of the circular truncated cone inclined surface (8), a lower discharging straight pipe (12) is arranged in the through hole (11), a lower discharging guide pipe (13) is connected to the top of the lower discharging straight pipe (12), a plurality of resin feeding ports (14) are arranged at the top of the dissolving tank (1), and the lower discharging guide pipe (13) is connected with the resin feeding port (14).

2. The polyimide film raw material solution preparation apparatus according to claim 1, wherein An ultrasonic transducer (15) is arranged at the bottom of the dissolving tank (1), and the ultrasonic transducer (15) is connected with an ultrasonic power supply (16).

3. The polyimide film raw material solution preparation apparatus according to claim 2, wherein A temperature sensor (17) is arranged at the bottom of the dissolving tank (1), and the temperature sensor (17) is connected with a controller (18).

4. The polyimide film raw material solution preparation apparatus according to claim 3, wherein A heat preservation plate (19) is arranged outside the heating jacket of the dissolving tank (1).

5. The polyimide film raw material solution preparation apparatus according to claim 4, wherein The lower end of the liquid inlet pipe (6) extending into the dissolving tank (1) is arranged to be inclined to the inner wall of the dissolving tank (1).

6. The polyimide film raw material solution preparation apparatus according to claim 5, wherein A plurality of through holes (20) are arranged on the stirring paddle (4).

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