Raw material defoaming device for polyimide film production

Abstract

The utility model belongs to the technical field of polyimide film raw material processing, and particularly discloses a raw material defoaming device for polyimide film production, which comprises a tank body, a fixed block is fixed at the bottom of the tank body, a motor is fixed on the fixed block, a second bevel gear is sleeved at the output end of the motor, and a first bevel gear is meshed on the side surface of the second bevel gear. The end, close to the first bevel gear, of the rotating shaft is sleeved with a second limiting ring, the outer side of the second limiting ring is sleeved with a limiting block fixed to the bottom of the tank body, a first stirring piece is fixed to the side face of the rotating shaft, a first limiting ring is fixed to the end of the first stirring piece, and a clamping ring is fixed to the bottom of the first limiting ring. A connecting ring is arranged on the side, away from the clamping ring, of the first limiting ring, second stirring blades are fixed to the first stirring blades, third stirring blades fixed to the end of the rotating shaft are arranged below the second stirring blades, and the first stirring blades, the second stirring blades and the third stirring blades are used in cooperation to stir raw materials at the bottom of the tank body.

Description

Technical Field

[0001] The utility model relates to the technical field of polyimide film raw material processing, in particular to a raw material defoaming device for polyimide film production. Background Art

[0002] Polyimide film is the best performing thin-film insulating material in the world. It is made by polycondensing pyromellitic dianhydride (PMDA) and diaminodiphenyl ether (ODA) in a strong polar solvent, casting the resulting film, and then imidizing it.

[0003] Although certain technological progress has been made in the current polyimide film raw material production equipment, some shortcomings still exist. Taking the utility model with patent number CN218139180U as an example, this device encountered specific problems in the process of stirring the polyimide raw materials. When the raw materials are located at the bottom of the tank, due to the design limitations of the stirring device, this part of the raw materials often cannot be fully stirred. This situation leads to a problem: the bubbles inside the raw materials cannot be eliminated in time. The presence of bubbles is detrimental to the performance of the polyimide film. During the later use of the raw materials, these bubbles that have not been eliminated may cause defects in the production process, thereby affecting the quality of the final product. Utility Model Content

[0004] The purpose of the utility model is to provide a raw material defoaming device for producing polyimide films, so as to solve the problems raised in the above background technology.

[0005] The cam is secured to the bottom of the tank body with a retaining ring, and the cam is secured to the bottom of the tank body with a retaining ring.

[0006] As a preferred embodiment of the present invention, the side of the tank body is provided with supporting legs for supporting the tank body.

[0007] As a preferred embodiment of the present invention, a discharge port is provided at the bottom of the tank body for releasing the processed raw materials.

[0008] As a preferred embodiment of the present invention, a feed port is provided on the top of the tank body, and an exhaust pipe is provided next to the feed port. The feed port is used for adding raw materials, and the exhaust port is used for connecting a vacuum pump to extract the air inside the tank body.

[0009] As a preferred embodiment of the present invention, a driving device is provided on the top of the tank body, and the driving device is connected to a plurality of stirring blades, and the driving device is used to drive the stirring blades to stir the raw materials inside the tank body.

[0010] As a preferred embodiment of the present invention, the first limiting ring and the snap ring are both clamped inside the side wall of the tank body, and the first limiting ring and the snap ring are used to assist the first stirring blade in rotating.

[0011] As a preferred embodiment of the present invention, a shell is provided on the outer side of the first bevel gear and the second bevel gear for protecting the first bevel gear and the second bevel gear.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model realizes stirring of the raw materials at the bottom of the tank body through the first stirring blade, the second stirring blade and the third stirring blade, ensuring that all the raw materials inside the tank body can be fully stirred and defoamed, avoiding quality problems that may occur later due to the inability to stir and defoam some raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 Enlarged schematic diagram of structure A;

[0017] Figure 4 For this utility model Figure 2 Enlarged schematic diagram of structure B;

[0018] Figure 5 This is a schematic structural diagram of the first stirring blade, the second stirring blade and the third stirring blade of the utility model.

[0019] In the figure: 1. feed port; 2. drive device; 3. tank body; 4. support leg; 5. discharge port; 6. exhaust pipe; 7. stirring blade; 8. fixing block; 9. motor; 10. first stirring blade; 11. first limiting ring; 12. snap ring; 13. outer shell; 14. rotating shaft; 15. second limiting ring; 16. limiting block; 17. first bevel gear; 18. second bevel gear; 19. connecting ring; 20. second stirring blade; 21. third stirring blade. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] See also Figure 1-5 The utility model provides a technical solution: a defoaming device for raw materials used in the production of polyimide films, comprising a tank body 3, a fixing block 8 fixed to the bottom of the tank body 3, a motor 9 fixed to the fixing block 8, a second bevel gear 18 sleeved on the output end of the motor 9, a first bevel gear 17 meshed with the side of the second bevel gear 18, a rotating shaft 14 sleeved inside the first bevel gear 17, a second limiting ring 15 sleeved on the end of the rotating shaft 14 close to the first bevel gear 17, a limiting block 16 fixed to the bottom of the tank body 3 sleeved on the outside of the second limiting ring 15, the side of the rotating shaft 14 A plurality of first stirring blades 10 are fixed, a first limiting ring 11 is fixed to the end of the plurality of first stirring blades 10, a clamping ring 12 is fixed to the bottom of the first limiting ring 11, a connecting ring 19 is provided on the side of the first limiting ring 11 away from the clamping ring 12, a second stirring blade 20 is fixed on the plurality of first stirring blades 10, and a plurality of third stirring blades 21 fixed to the end of the rotating shaft 14 are provided below the second stirring blade 20. The first stirring blade 10, the second stirring blade 20 and the third stirring blade 21 are used in conjunction with each other to stir the raw materials at the bottom of the tank body 3.

[0024] Furthermore, the side of the tank body 3 is provided with a support leg 4 for supporting the tank body 3.

[0025] Furthermore, a discharge port 5 is provided at the bottom of the tank body 3 for releasing the processed raw materials.

[0026] Furthermore, a feed port 1 is provided on the top of the tank body 3 , and an exhaust pipe 6 is provided next to the feed port 1 . The feed port 1 is used for adding raw materials, and the exhaust port is used to connect a vacuum pump to extract air from the inside of the tank body 3 .

[0027] Furthermore, a driving device 2 is provided on the top of the tank body 3 , and the driving device 2 is connected to a plurality of stirring blades 7 . The driving device 2 is used to drive the stirring blades 7 to stir the raw materials inside the tank body 3 .

[0028] Furthermore, the first limiting ring 11 and the snap ring 12 are both clamped inside the side wall of the tank body 3 , and the first limiting ring 11 and the snap ring 12 are used to assist the first stirring blade 10 in rotating.

[0029] Furthermore, a housing 13 is provided on the outside of the first bevel gear 17 and the second bevel gear 18 to protect the first bevel gear 17 and the second bevel gear 18 .

[0030] Working principle: After the raw materials are loaded into the tank body 3, the driving device 2 and the motor 9 are started. The driving device 2 drives the several stirring blades 7 to rotate to stir the raw materials, and the rotation of the motor 9 drives the second bevel gear 18 to rotate, and the rotation of the second bevel gear 18 drives the first bevel gear 17 to rotate, and the first bevel gear 17 drives the rotating shaft 14 to rotate, and the rotating shaft 14 drives the first stirring blade 10 and the third stirring blade 21 to rotate. At the same time, the first stirring blade 10 drives the second stirring blade 20 to rotate. The first stirring blade 10, the second stirring blade 20 and the third stirring blade 21 cooperate with each other to stir the raw materials at the bottom of the tank body 3. The provided connecting ring 19, the first limiting ring 11 and the snap ring 12 cooperate with each other to assist the rotation of the first stirring blade 10 while also being used to strengthen the structural strength of the first stirring blade 10.

[0031] It is worth noting that the entire device is controlled by a master control device. Since the devices matched with the control device are commonly used devices and belong to existing mature technologies, their electrical connection relationships and specific circuit structures will not be described in detail here.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A defoaming device for raw materials used in the production of polyimide films, characterized by: The invention comprises a tank body (3), wherein a fixing block (8) is fixed at the bottom of the tank body (3), a motor (9) is fixed on the fixing block (8), a second bevel gear (18) is sleeved on the output end of the motor (9), a first bevel gear (17) is meshed with the side of the second bevel gear (18), a rotating shaft (14) is sleeved on the inside of the first bevel gear (17), a second limiting ring (15) is sleeved on one end of the rotating shaft (14) close to the first bevel gear (17), and a limiting block (16) fixed to the bottom of the tank body (3) is sleeved on the outside of the second limiting ring (15). A plurality of first stirring blades (10) are fixed to the side of the rotating shaft (14), a first limiting ring (11) is fixed to the end of the plurality of first stirring blades (10), a clamping ring (12) is fixed to the bottom of the first limiting ring (11), a connecting ring (19) is provided on the side of the first limiting ring (11) away from the clamping ring (12), a second stirring blade (20) is fixed to the plurality of first stirring blades (10), and a plurality of third stirring blades (21) fixed to the end of the rotating shaft (14) are provided below the second stirring blades (20).

2. A defoaming device for raw materials used in the production of polyimide films according to claim 1, characterized in that: Support legs (4) are provided on the sides of the tank body (3).

3. The defoaming device for raw materials used in the production of polyimide films according to claim 1, characterized in that: A discharge port (5) is provided at the bottom of the tank body (3).

4. The defoaming device for raw materials used in the production of polyimide films according to claim 1, characterized in that: A feed port (1) is provided on the top of the tank body (3), and an exhaust pipe (6) is provided next to the feed port (1).

5. The defoaming device for raw materials used in the production of polyimide films according to claim 1, characterized in that: A driving device (2) is provided on the top of the tank body (3), and the driving device (2) is connected to a plurality of stirring blades (7).

6. A defoaming device for raw materials used in the production of polyimide films according to claim 1, characterized in that: The first limiting ring (11) and the clamping ring (12) are both clamped inside the side wall of the tank body (3).

7. The defoaming device for raw materials used in the production of polyimide films according to claim 1, characterized in that: A housing (13) is provided on the outside of the first bevel tooth (17) and the second bevel tooth (18).

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