Vacuum defoaming device for polyimide film slurry

Abstract

The utility model relates to the technical field of defoaming devices, in particular to a polyimide film slurry vacuum defoaming device which comprises a tank body, a connecting pipe and a connecting plate, a cover plate is connected to the outer wall of the upper end of the tank body through screws, a rotating shaft is rotatably installed in the cover plate, and stirring blades are installed on the outer wall of the rotating shaft. A connecting pipe is arranged on one side of the outer wall of the upper end of the cover plate, a connecting rod is movably installed in the connecting pipe, a limiting plate is welded to the outer wall of the upper end of the connecting rod, a connecting plate is arranged on one side of the outer wall of the lower end of the connecting rod, and a material cleaning ring is fixedly attached to the lower end of the inner wall of the connecting pipe and can assist in separation of bubbles. The elimination efficiency of bubbles in the slurry is improved, the residual quantity of the slurry on the outer wall of the stirring blade is reduced, the unloading integrity of the slurry is improved, and the unloading efficiency of the slurry is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to defoaming device technical field, concretely relates to a kind of polyimide film slurry vacuum defoaming device. BACKGROUND

[0002] Polyimide film slurry is an important material for manufacturing polyimide film (PI film). It is usually a mixture composed of polyimide resin, solvent and additives, with specific fluidity and adhesion, suitable for various coating and printing processes. The polyimide film slurry vacuum defoaming device is a device specifically used to eliminate bubbles in polyimide film slurry.

[0003] Publication No. CN218139180U discloses a kind of raw material defoaming device for polyimide film production, related to polyimide film production raw material processing equipment related technical field, including stirring drum and raw material stirring treatment mechanism, the raw material stirring treatment mechanism is set in the inside of stirring drum, the external surface of stirring drum is fixedly connected with fixed ring, the lower surface of fixed ring is fixedly connected with support leg, the external bottom end of stirring drum is fixedly installed with discharge pipe near the middle position, the utility model is mixed and stirred by the cooperation between stirring shaft and driven shaft set in raw material stirring treatment mechanism to process the raw material in stirring drum, thereby increasing the stirring quality, improving the stirring effect, and reducing the generation of bubbles. The discharge pipe is connected with the external exhaust pump, so that the exhaust pump can extract the air in the stirring drum to form a negative pressure state inside, and the generated bubbles are discharged under pressure to eliminate bubbles.

[0004] The prior art CN218139180U has many benefits, but still has the following problems: the cleaning of the stirring blades is not perfect, which causes the bubbles in the slurry to adhere to the surface of the stirring blades after the slurry enters the inside of the tank, affecting the elimination efficiency of the bubbles, and the slurry will also adhere to the surface of the stirring blades during unloading, affecting the unloading integrity and efficiency of the slurry. UTILITY MODEL CONTENTS

[0005] To solve the problems in the prior art, the utility model provides a kind of polyimide film slurry vacuum defoaming device.

[0006] The utility model discloses a kind of polyimide film slurry vacuum defoaming devices, including tank, connecting pipe and connecting plate, the tank upper end outer wall screw connection has cover plate, rotatingly installed with shaft in the cover plate, the shaft outer wall is installed with stirring vane, the cover plate upper end outer wall one side is provided with connecting pipe, connecting rod is movably installed in the connecting pipe, the connecting rod upper end outer wall is welded with limit plate, the connecting rod lower end outer wall one side is provided with connecting plate, cleaning ring is fixedly connected to the connecting pipe inner wall lower end, fixed piece is installed on the connecting pipe outer wall lower end.

[0007] By adopting the above technical scheme, the tank as the main container can accommodate the slurry and perform the necessary defoaming step. The shaft drives the stirring vane to rotate inside the tank, realizing the purpose of stirring the slurry inside the tank, assisting the movement of the bubbles inside the slurry, and the connecting plate can move vertically on the outside of the stirring vane due to the rotation of the stirring vane, realizing the cleaning of the outer wall of the stirring vane, cleaning the bubbles attached to the outer wall of the stirring vane, assisting the detachment of the bubbles, improving the elimination efficiency of the bubbles inside the slurry, realizing the pushing and cleaning of the residual material attached to the outer wall of the stirring vane during the unloading of the slurry, reducing the residual amount of the slurry on the outer wall of the stirring vane, improving the unloading integrity of the slurry, improving the unloading efficiency of the slurry, and the connecting pipe is fixedly installed on the upper end of the cover plate by the fixed piece, keeping the use position of the connecting pipe stable.

[0008] Specifically, a discharge pipe is insertedly installed on one side of the lower end outer wall of the tank, a feeding pipe is insertedly installed on one side of the upper end of the cover plate, and an exhaust pipe is insertedly installed on the outer wall of the side of the cover plate away from the feeding pipe. The discharge pipe, the exhaust pipe, and the feeding pipe are all connected to the inside of the tank, and flanges are welded on the outer walls of the upper ends of the exhaust pipe and the feeding pipe.

[0009] By adopting the above technical scheme, the device can realize accurate control of the slurry through the arrangement of the discharge pipe, the feeding pipe, and the exhaust pipe. The discharge pipe is convenient for discharging the treated slurry, the feeding pipe is used to add raw materials into the tank, and the exhaust pipe can discharge the gas in the tank during the vacuum defoaming process, ensuring the defoaming effect. In addition, the design of the flanges makes the connection between the feeding pipe and the exhaust pipe and the external equipment more firm, reliable, and sealed.

[0010] Specifically, a heat exchange mechanism is arranged on the outside of the tank, the heat exchange mechanism is composed of a heat exchange cover and two heat exchange pipes, the heat exchange cover is installed on the outside of the tank, and the heat exchange pipes are insertedly installed on both sides of the heat exchange cover.

[0011] By adopting the technical scheme, the heat exchange pipe is connected with the external heating mechanism, the high-temperature medium generated by the heating mechanism can be delivered to the inside of the heat exchange cover through the heat exchange pipe, the high-temperature medium flows between the heat exchange cover and the tank body, the purpose of adjusting the temperature of the tank body is achieved, the temperature requirement in the vacuum defoaming process of the slurry is ensured, and the vacuum defoaming quality and efficiency of the slurry are ensured.

[0012] Specifically, the connecting rod is elastically connected between the spring and the lower end of the inner wall of the connecting pipe.

[0013] By adopting the technical scheme, the connecting rod can maintain flexibility when subjected to external force, so that when the upper end of the stirring blade is located in the inside of the connecting plate, the connecting plate moves vertically due to the rotation of the stirring blade, the sliding rail connection between the limiting plate and the connecting pipe can ensure the vertical movement of the connecting rod, and when the stirring blade is separated from the inside of the connecting plate, the spring force can push the connecting plate upward, so that the connecting plate moves to the upper end of the inside of the tank body, avoiding the blocking of the rotation of the stirring blade by the connecting plate.

[0014] Specifically, the push rod body is located on the upper end of the limiting plate.

[0015] By adopting the technical scheme, the push rod body can conveniently control the up-and-down movement of the connecting rod and the connecting plate, and can drive the connecting plate to move to the position of the stirring blade, so that one end of the stirring blade can enter the inside of the connecting plate.

[0016] Specifically, the inside of the connecting plate is provided with a receiving groove, the inner wall of the receiving groove is fixedly connected with a scraper, and the inner wall of the scraper is in contact with the outer wall of the stirring blade.

[0017] By adopting the technical scheme, the receiving groove and the scraper can effectively scrape off the residual slurry on the outer wall of the stirring blade, which not only helps to keep the stirring blade clean and efficient, but also reduces the waste and pollution of the slurry.

[0018] Specifically, the outer wall of one side of the connecting plate is provided with a connecting piece, and the outer wall of the lower end of the connecting rod is connected with the outer wall of the upper end of the connecting piece.

[0019] By adopting the technical scheme, the design of the connecting piece enables the outer wall of the lower end of the connecting rod to be firmly connected with the outer wall of the upper end of the connecting piece. This connection mode not only enhances the stability of the connecting rod, but also facilitates the disassembly and replacement of the connecting plate and the scraper and other components thereon.

[0020] The beneficial effects of the utility model are as follows:

[0021] (1) The polyimide film slurry vacuum defoaming device can clean the bubbles adhered to the outer wall of the stirring blade, can assist the bubbles to separate, and improves the elimination efficiency of the bubbles in the slurry.

[0022] (2) The polyimide film slurry vacuum defoaming device can push and clean the residual material adhered to the outer wall of the stirring blade during the slurry discharging process, reduces the residual amount of the slurry on the outer wall of the stirring blade, improves the discharging completeness of the slurry, and improves the discharging efficiency of the slurry. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model is further described below in combination with the drawings and embodiments.

[0024] Figure 1 It is a tank body structure schematic view of the utility model;

[0025] Figure 2 It is a tank body structure sectional view schematic view of the utility model;

[0026] Figure 3 It is a connecting pipe structure partial sectional view schematic view of the utility model;

[0027] Figure 4 It is a connecting pipe structure partial sectional view schematic view of the utility model;

[0028] Figure 5 It is a connecting plate structure exploded schematic view of the utility model.

[0029] In the drawing: 1, tank body; 11, cover plate; 12, feed pipe; 13, exhaust pipe; 14, heat exchange cover; 15, discharge pipe; 16, rotating shaft; 17, stirring blade; 18, heat exchange pipe; 2, connecting pipe; 21, push rod body; 22, fixed part; 23, clean material ring; 24, connecting rod; 25, limiting plate; 26, spring; 3, connecting plate; 31, storage groove; 32, scraper; 33, connecting piece. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0031] In order to save manpower and improve efficiency, as an embodiment of the utility model, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5As shown, the utility model discloses a kind of polyimide film slurry vacuum defoaming devices, including jar body 1, connecting pipe 2 and connecting plate 3, screw connection has cover plate 11 on the outer wall of jar body 1 upper end, rotatingly installed has shaft 16 in cover plate 11 inside, stirring vane 17 is installed on the outer wall of shaft 16, connecting pipe 2 is arranged on the outer wall of cover plate 11 upper end side, connecting rod 24 is movably installed in connecting pipe 2 inside, limit plate 25 is welded on the outer wall of connecting rod 24 upper end, connecting plate 3 is arranged on the outer wall of connecting rod 24 lower end side, cleaning ring 23 is fixedly attached to the inner wall lower end of connecting pipe 2, fixed piece 22 is installed on the outer wall lower end of connecting pipe 2.

[0032] When using, jar body 1 as main body container, can accommodate slurry and carry out necessary defoaming step, and shaft 16 drives stirring vane 17 to rotate in jar body 1 inside, realize the purpose of stirring vane 17 inside slurry, auxiliary bubble inside slurry moves, and connecting plate 3 can still rotate with stirring vane 17, perpendicular movement occurs on its outside, realize the cleaning of the outer wall of stirring vane 17, can realize the cleaning of the bubble adhered to the outer wall of stirring vane 17, can assist the separation of bubble, improve the elimination efficiency of bubble inside slurry, can realize the residual material adhered to the outer wall of stirring vane 17 to be pushed and cleaned during slurry unloading process, reduce the residual amount of slurry on the outer wall of stirring vane 17, improve the unloading integrity of slurry, improve the unloading efficiency of slurry, connecting pipe 2 is fixedly installed on the upper end of cover plate 11 by fixed piece 22, keep the use position of connecting pipe 2 stable, cleaning ring 23 can clean the residual material on the outer wall of connecting rod 24, avoid residual material into connecting pipe 2 inside.

[0033] In order to enter and exit material, for example, as Figure 1 As shown, discharge pipe 15 is insertedly installed on the outer wall of jar body 1 lower end side, feed pipe 12 is insertedly installed on the upper end of cover plate 11 side, exhaust pipe 13 is insertedly installed on the outer wall of cover plate 11 side away from feed pipe 12, discharge pipe 15, exhaust pipe 13 and feed pipe 12 are all communicated with jar body 1 inside, and flange is welded on the outer wall upper end of exhaust pipe 13 and feed pipe 12.

[0034] When using, through the setting of discharge pipe 15, feed pipe 12 and exhaust pipe 13, the device can realize accurate control to slurry. Discharge pipe 15 is convenient for discharging treated slurry, feed pipe 12 is used to add raw material into jar body 1, and exhaust pipe 13 can discharge gas in jar body 1 during vacuum defoaming process, to ensure defoaming effect. In addition, the design of flange makes the connection between feed pipe 12 and exhaust pipe 13 and external equipment more firm and reliable and sealed.

[0035] For temperature regulation, for example, as Figure 1As shown, the outer side of the tank body 1 is provided with a heat exchange mechanism, which is composed of a heat exchange cover 14 and two heat exchange pipes 18. The heat exchange cover 14 is installed on the outer side of the tank body 1, and the heat exchange pipes 18 are inserted and installed on both sides of the heat exchange cover 14.

[0036] In use, the heat exchange pipes 18 are connected with the external heating mechanism. The high-temperature medium generated by the heating mechanism can be transported to the inside of the heat exchange cover 14 through the heat exchange pipes 18, so that the high-temperature medium flows between the heat exchange cover 14 and the tank body 1, achieving the purpose of adjusting the temperature of the tank body 1, ensuring the temperature requirement in the process of vacuum defoaming of the slurry, and ensuring the quality and efficiency of vacuum defoaming of the slurry.

[0037] In order to reset, for example, as shown in the figure, Figure 3 As shown, the outer side of the connecting rod 24 is provided with a spring 26, and the limiting plate 25 is elastically connected between the spring 26 and the lower end of the inner wall of the connecting pipe 2.

[0038] In use, the connecting rod 24 can maintain a certain flexibility when subjected to external force, so that when the upper end of the stirring blade 17 is located inside the connecting plate 3, the connecting plate 3 will move vertically relative to the stirring blade 17 due to the rotation of the stirring blade 17. The limiting plate 25 is connected with the connecting pipe 2 by a sliding rail, which can ensure the vertical movement of the connecting rod 24. When the stirring blade 17 is separated from the inside of the connecting plate 3, the spring 26 can push the connecting plate 3 upward, so that the connecting plate 3 moves to the upper end inside the tank body 1, avoiding the blocking of the rotation of the stirring blade 17 by the connecting plate 3.

[0039] In order to push and move, for example, as shown in the figure, Figure 3 As shown, the inner wall of the connecting pipe 2 is provided with a push rod body 21 on one side of the upper end, and the push rod body 21 is located on the upper end of the limiting plate 25.

[0040] In use, the push rod body 21 can conveniently control the up and down movement of the connecting rod 24 and the connecting plate 3, and can drive the connecting plate 3 to move to the position of the stirring blade 17, so that one end of the stirring blade 17 can enter the inside of the connecting plate 3.

[0041] In order to clean the material, for example, as shown in the figure, Figure 4 As shown, a receiving groove 31 is formed in the inside of the connecting plate 3, and a scraper 32 is fixedly attached to the inner wall of the receiving groove 31, and the inner wall of the scraper 32 is in contact with the outer wall of the stirring blade 17.

[0042] In use, the receiving groove 31 and the scraper 32 can effectively scrape off the residual slurry on the outer wall of the stirring blade 17, which not only helps to keep the stirring blade 17 clean and efficient operation, but also reduces the waste and pollution of the slurry.

[0043] In order to assemble and connect, for example, as shown in the figure, Figure 5As shown, the outer wall of one side of the connecting plate 3 is provided with a connecting piece 33, and the outer wall of the lower end of the connecting rod 24 is connected with the outer wall of the upper end of the connecting piece 33.

[0044] In use, the design of the connecting piece 33 enables the outer wall of the lower end of the connecting rod 24 to be firmly connected with the outer wall of the upper end of the connecting piece 33.

[0045] In use, the present application adds appropriate slurry into the tank body 1 through the feeding pipe 12, starts the external heating mechanism, and transports the high-temperature medium into the heat exchange cover 14 through the heat exchange pipe 18, adjusts the temperature of the tank body 1 to the required range, drives the rotating shaft 16 to rotate, and makes the stirring blade 17 rotate in the tank body 1 to stir the slurry.

[0046] The push rod body 21 is used to control the up-and-down movement of the connecting rod 24 and the connecting plate 3, so that the connecting plate 3 can be accurately moved to the position of the stirring blade 17.

[0047] When the slurry is uniformly stirred and the bubbles are reduced to a certain extent, the vacuum equipment can be started to perform vacuum treatment on the tank body 1 through the exhaust pipe 13, and the treated slurry is discharged through the discharge pipe 15.

[0048] During the discharging process, the connecting plate 3 can still be moved to the outside of the stirring blade 17 according to the above movement steps, and the slurry residue on the outer wall of the stirring blade 17 can be continuously scraped off.

[0049] It should be noted that the present application is a polyimide film slurry vacuum defoaming device, and the components in the present application are known to those skilled in the art.

[0050] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A polyimide film slurry vacuum defoaming device, characterized by, Including the tank body (1), connecting pipe (2) and connecting plate (3), the tank body (1) upper end outer wall screw connection has the cover plate (11), the cover plate (11) inside rotationally installed has the rotating shaft (16), the rotating shaft (16) outer wall installation has the stirring vane (17), the cover plate (11) upper end outer wall one side is provided with connecting pipe (2), the connecting pipe (2) inside movably installed has the connecting rod (24), the connecting rod (24) upper end outer wall welding has the limit board (25), the connecting rod (24) lower end outer wall one side is provided with connecting plate (3), the connecting pipe (2) inner wall lower end is fixed with the cleaning ring (23), the connecting pipe (2) outer wall lower end installation has the fixed part (22).

2. The polyimide film slurry vacuum defoaming device according to claim 1, characterized in that, The tank body (1) lower end outer wall one side inserts the installation of the discharge pipe (15), the cover plate (11) upper end one side inserts the installation of the feed pipe (12), the cover plate (11) away from the feed pipe (12) one side outer wall inserts the installation of the exhaust pipe (13), the discharge pipe (15), exhaust pipe (13) and feed pipe (12) all with tank body (1) inside is linked together, the exhaust pipe (13) and feed pipe (12) outer wall upper end all are welded with flange.

3. The polyimide film slurry vacuum defoaming device according to claim 1, characterized in that, The tank body (1) outside is provided with heat exchange mechanism, the heat exchange mechanism is by heat exchange cover (14) and two heat exchange pipes (18) are constituted, the heat exchange cover (14) is installed to tank body (1) outside, and heat exchange pipe (18) inserts the installation of heat exchange cover (14) both sides.

4. The polyimide film slurry vacuum defoaming device according to claim 1, characterized in that, The connecting rod (24) outside is provided with spring (26), and the limit board (25) is elastically connected between the spring (26) and the lower end of the inner wall of the connecting pipe (2) through the spring (26).

5. The polyimide film slurry vacuum defoaming device according to claim 1, characterized in that, The inner wall of the connecting pipe (2) is provided with a push rod body (21) on one side of the upper end, and the push rod body (21) is located on the upper end of the limit board (25).

6. The polyimide film slurry vacuum defoaming device according to claim 1, characterized in that, The connecting plate (3) is provided with a receiving groove (31) in the inner wall, and the inner wall of the receiving groove (31) is fixedly connected with a scraper (32), and the inner wall of the scraper (32) is in contact with the outer wall of the stirring vane (17).

7. The polyimide film slurry vacuum defoaming device according to claim 1, characterized in that, The connecting plate (3) is provided with a connecting piece (33) on one side of the outer wall, and the lower end of the connecting rod (24) is connected with the upper end of the connecting piece (33).

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