Alkali liquor cleaning tank for TAC film pretreatment

Abstract

The utility model discloses a TAC film pretreatment alkali liquor rinse tank which comprises a rinse tank body, a chain is arranged on each side of the rinse tank body, a mold penetrating gear assembly comprises a stainless steel base fixedly installed on the inner wall of the rinse tank body, a cylinder is arranged on the stainless steel base, a mold penetrating gear is rotationally connected to the cylinder in a sleeved mode, and the mold penetrating gear is connected with the rinse tank body in a sleeved mode. One chain sequentially bypasses all the mold penetrating gears on the same side; a guide roller is rotationally installed at the position, corresponding to the die penetrating gear assembly, of the inner wall of the cleaning tank body, and the two ends of the guide roller penetrate through the die penetrating gear assembly. A stainless steel rod for bonding a TAC film is arranged between the two chains; the membrane penetrating gear and the chain are supported by the side wall of the cleaning tank, the gravity of the membrane penetrating gear and the chain is prevented from acting on the bearing of the guide roller, the rotation resistance of the guide roller is reduced, the rotation smoothness of the guide roller is improved, the rotation stability of the guide roller is improved, and therefore the TAC membrane in the alkali liquor cleaning tank is prevented from being scratched.

Description

Technical Field

[0001] This utility model relates to the field of TAC membrane pretreatment technology, specifically to a TAC membrane pretreatment alkaline cleaning tank. Background Technology

[0002] During the production of polarizing films, TAC requires alkaline pretreatment. To facilitate the threading of the TAC film, existing TAC film processing tanks typically have a threading chain installed on the guide rollers.

[0003] Traditional film-threading chains consist of a film-threading gear bearing mounted on a guide roller bearing. In the polarizer manufacturing industry, the alkaline solution concentration for TAC film pretreatment ranges from 7-14%, and the temperature is above 40℃. On one hand, the film-threading gear bearing will experience wear and corrosion after a period of use. On the other hand, the film-threading chain is usually made of stainless steel and is quite heavy; the weight of the chain is applied to the film-threading gear bearing, increasing the friction between the bearing and the guide roller. These two factors cause the guide rollers in existing TAC film pretreatment alkaline cleaning tanks to easily experience uneven rotation, leading to scratches on the TAC film and severely affecting the appearance of the polarizer product. Utility Model Content

[0004] The purpose of this invention is to provide a TAC membrane pretreatment alkaline solution cleaning tank to solve the problem mentioned in the background art of the guide rollers in the existing pretreatment alkaline solution cleaning tanks being prone to uneven rotation, causing scratches on the TAC membrane.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a TAC membrane pretreatment alkaline cleaning tank, comprising a cleaning tank body, a chain on each side of the cleaning tank body, and a mold-passing gear assembly arranged sequentially on both sides of the inner wall of the cleaning tank body according to the TAC membrane penetration path. The mold-passing gear assembly includes a stainless steel base fixedly installed on the inner wall of the cleaning tank body, a cylinder on the stainless steel base, and a mold-passing gear rotatably sleeved on the cylinder, wherein one of the chains sequentially passes over all the mold-passing gears on the same side.

[0006] A guide roller is rotatably mounted on the inner wall of the cleaning tank body corresponding to the position of the mold-through gear assembly, and both ends of the guide roller penetrate the mold-through gear assembly;

[0007] A stainless steel rod for bonding the TAC membrane is provided between the two chains.

[0008] Among them, drive gears are rotatably installed at the center of the top of both sides of the cleaning tank body, an intermediate shaft is provided between the two drive gears, and the chain passes around the drive gears;

[0009] One end of the intermediate shaft is provided with a handle.

[0010] The cleaning tank body has eight small sidewall gears mounted on its upper inner wall from left to right, and the chain on the same side passes around the small sidewall gears in sequence.

[0011] The stainless steel base has an insertion hole that runs through the axis of the cylinder, and the two ends of the guide roller are rotatably connected to the inner wall of the cleaning tank body through the insertion hole.

[0012] The inner diameter of the insertion hole is larger than the diameter of the guide roller.

[0013] The inner wall of the cleaning tank body is fitted with a bushing corresponding to the position of the guide roller, and the end of the guide roller is rotatably connected to the inner wall of the cleaning tank body through the bushing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Compared with the existing membrane-threading chain in the alkaline cleaning tank of TAC membrane pretreatment, this application directly eliminates the membrane-threading gear bearing on the guide roller and replaces it with a mold-threading gear assembly consisting of a stainless steel base, a cylinder, and a mold-threading gear. The stainless steel base is fixed to the side wall of the cleaning tank, and the side wall of the cleaning tank supports the membrane-threading gear and chain. This avoids the gravity of the membrane-threading gear and chain acting on the bearing of the guide roller, reduces the resistance to the rotation of the guide roller, improves the smoothness of the rotation of the guide roller, and improves the stability of the rotation of the guide roller, thereby avoiding scratches on the TAC membrane in the alkaline cleaning tank. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the chain arrangement structure inside the cleaning tank body of this utility model;

[0017] Figure 2 This is a schematic diagram of the TAC membrane orientation structure inside the cleaning tank body of this utility model;

[0018] Figure 3 This is a schematic diagram of the isometric structure of the through-drill gear assembly of this utility model.

[0019] In the diagram: 1. Cleaning tank body; 2. Drive gear; 3. Intermediate shaft; 4. Chain; 5. Side wall pinion; 6. Mold-through gear assembly; 61. Stainless steel base; 62. Cylinder; 63. Mold-through gear; 7. Guide roller; 8. Stainless steel rod; 9. TAC membrane. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a TAC membrane pretreatment alkaline cleaning tank, including a cleaning tank body 1, a chain 4 on each side of the cleaning tank body 1, and a mold-passing gear assembly 6 arranged sequentially on both sides of the inner wall of the cleaning tank body 1 according to the membrane-passing path of the TAC membrane 9. The mold-passing gear assembly 6 includes a stainless steel base 61 fixedly installed on the inner wall of the cleaning tank body 1, a cylinder 62 on the stainless steel base 61, and a mold-passing gear 63 rotatably sleeved on the cylinder 62. One chain 4 passes around all the mold-passing gears 63 on the same side in sequence, and the beginning and end of each chain 4 are connected. One chain 4 can drive all the mold-passing gears 63 on the same side to rotate.

[0022] A guide roller 7 is rotatably mounted on the inner wall of the cleaning tank body 1 at the position corresponding to the mold-passing gear assembly 6. Both ends of the guide roller 7 pass through the mold-passing gear assembly 6. The two ends of the guide roller 7 are rotatably mounted on the inner wall of the cleaning tank body 1. The rotation of the guide roller 7 is separate from that of the mold-passing gear 63. A stainless steel rod 8 for bonding TAC film 9 is provided between the two chains 4. When TAC film 9 needs to be cleaned, one end of TAC film 9 is first bonded to the stainless steel rod 8. Then, when the drive chain 4 is driven, it drives TAC film 9 to pass around the guide roller 7 along the mold-passing path, thereby cleaning TAC film 9.

[0023] Specifically, compared with the existing membrane-threading chain in the alkaline cleaning tank of TAC membrane pretreatment, this application directly eliminates the membrane-threading gear bearing on the guide roller 7, and replaces it with a mold-threading gear assembly 6 composed of a stainless steel base 61, a cylinder 62 and a mold-threading gear 63. The stainless steel base 61 is fixed to the side wall 1 of the cleaning tank, and the mold-threading gear 63 and the chain 4 are supported by the side wall of the cleaning tank body 1. This avoids the gravity of the mold-threading gear 63 and the chain 4 acting on the bearing of the guide roller 7, reduces the resistance to the rotation of the guide roller 7, improves the smoothness of the rotation of the guide roller 7, and improves the stability of the rotation of the guide roller 7, thereby avoiding scratches on the TAC membrane 9 inside the alkaline cleaning tank body 1.

[0024] Among them, drive gears 2 are rotatably installed at the center of the top of both sides of the cleaning tank body 1. An intermediate shaft 3 is provided between the two drive gears 2, and a chain 4 passes around the drive gears 2. A handle is provided at one end of the intermediate shaft 3. When it is necessary to drive the chain 4, the user drives the intermediate shaft 3 to rotate through the handle, thereby driving the drive gears 2 at both ends of the intermediate shaft 3 to rotate. The rotating drive gears 2 drive the chains 4 on both sides to drive synchronously, thereby driving the TAC film 9 bonded on the stainless steel rod 8 to move along the mold path around the guide roller 7.

[0025] The cleaning tank body 1 has eight small sidewall gears 5 mounted rotatably from left to right on the upper inner wall. Chains 4 on the same side pass around these gears. The cleaning tank body 1 is filled with TAC membrane pretreatment alkali solution. The level of the TAC membrane pretreatment alkali solution is higher than all the mold-through gear assemblies 6, but lower than all the sidewall gears 5. The sidewall gears 5 support a portion of the chain 4 above the TAC membrane pretreatment alkali solution level.

[0026] The stainless steel base 61 has a through hole at its axis and the cylinder 62. The two ends of the guide roller 7 are rotatably connected to the inner wall of the cleaning tank body 1 through the through hole. The inner diameter of the through hole is larger than the diameter of the guide roller 7. A bushing is embedded in the inner wall of the cleaning tank body 1 at the position corresponding to the guide roller 7. The end of the guide roller 7 is rotatably connected to the inner wall of the cleaning tank body 1 through the bushing.

[0027] The die-threading gear assembly 6, composed of a stainless steel base 61, a cylinder 62, and a die-threading gear 63, has an inner diameter of the insertion hole at the axis of the cylinder 62 and the stainless steel base 61 that is larger than the diameter of the guide roller 7, allowing the guide roller 7 to pass through the cylinder 62 and the stainless steel base 61. The stainless steel base 61 is fixed to the inner wall of the cleaning tank body 1, and the die-threading gear 63 can rotate flexibly around the cylinder 62 on the stainless steel base 61. The guide roller 7 passes through the insertion hole, and the bearing of the guide roller 7 is embedded in the inner wall of the cleaning tank body 1. When the TAC membrane 9 is threaded, the threading chain 4 rotates on the die-threading gear 63, driving the TAC membrane 9 to pass around the guide roller 7, completing the threading process.

[0028] Working principle: In use, TAC membrane pretreatment alkali solution is first injected into the cleaning tank body 1, and the liquid level of the TAC membrane pretreatment alkali solution is higher than all the mold-passing gear assemblies 6, while the liquid level of the TAC membrane pretreatment alkali solution is lower than all the side wall pinions 5. Then, one end of the TAC membrane 9 is bonded to the stainless steel rod 8. Next, the intermediate shaft 3 is rotated by the handle, which drives the drive gears 2 on both sides to rotate, thereby driving the chains 4 on both sides to drive synchronously. When the drive chains 4 are driven, the TAC membrane 9 is driven along the mold-passing path and around the guide roller 7, thereby driving the TAC membrane 9 to pass through the mold. In this application, the stainless steel base 61 is fixed on the side wall 1 of the cleaning tank. The side wall of the cleaning tank body 1 supports the mold-passing gear 63 and the chain 4, avoiding the gravity of the mold-passing gear 63 and the chain 4 from acting on the bearings of the guide roller 7, reducing the resistance of the guide roller 7 rotation, improving the smoothness of the guide roller 7 rotation, and improving the stability of the guide roller 7 rotation, thereby avoiding scratches on the TAC membrane 9 in the alkali cleaning tank body 1.

[0029] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A TAC membrane pretreatment alkaline solution cleaning tank, comprising a cleaning tank body (1), wherein a chain (4) is provided on each side of the cleaning tank body (1), characterized in that: On both sides of the inner wall of the cleaning tank body (1), through-membrane gear assemblies (6) are arranged sequentially according to the through-membrane path of the TAC membrane (9). The through-membrane gear assembly (6) includes a stainless steel base (61) fixedly installed on the inner wall of the cleaning tank body (1). A cylinder (62) is provided on the stainless steel base (61). Through-membrane gears (63) are rotatably sleeved on the cylinder (62). One of the chains (4) passes around all the through-membrane gears (63) on the same side in sequence. The inner wall of the cleaning tank body (1) is rotatably mounted with a guide roller (7) corresponding to the position of the mold-through gear assembly (6), and both ends of the guide roller (7) penetrate the mold-through gear assembly (6); A stainless steel rod (8) for bonding the TAC membrane (9) is provided between the two chains (4).

2. The alkaline cleaning tank for TAC membrane pretreatment according to claim 1, characterized in that: The cleaning tank body (1) has a drive gear (2) rotatably mounted at the center of the top of both sides, and an intermediate shaft (3) is provided between the two drive gears (2), and the chain (4) passes around the drive gear (2). One end of the intermediate shaft (3) is provided with a handle.

3. The alkaline cleaning tank for TAC membrane pretreatment according to claim 1, characterized in that: Eight small sidewall gears (5) are installed on the upper part of the inner wall of the cleaning tank body (1) from left to right, and the chain (4) on the same side passes around the small sidewall gears (5) in sequence.

4. The alkaline cleaning tank for TAC membrane pretreatment according to claim 1, characterized in that: The stainless steel base (61) has an insertion hole that passes through the axis of the cylinder (62), and the two ends of the guide roller (7) pass through the insertion hole and are rotatably connected to the inner wall of the cleaning tank body (1).

5. The alkaline cleaning tank for TAC membrane pretreatment according to claim 4, characterized in that: The inner diameter of the insertion hole is larger than the diameter of the guide roller (7).

6. The alkaline cleaning tank for TAC membrane pretreatment according to claim 4, characterized in that: A bushing is embedded in the inner wall of the cleaning tank body (1) at the position corresponding to the guide roller (7), and the end of the guide roller (7) is rotatably connected to the inner wall of the cleaning tank body (1) through the bushing.

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