Ceramic substrate tape casting device

Abstract

The utility model discloses a ceramic substrate tape casting device which comprises a slurry tank and a liquid supplementing mechanism, and the slurry tank is provided with a liquid outlet; the liquid supplementing mechanism comprises a liquid supplementing pipe and an opening and closing piece, a pipe opening in one end of the liquid supplementing pipe is communicated with the grinding and mixing process, a pipe opening in the other end of the liquid supplementing pipe is communicated with the slurry tank, the area of the pipe opening of the liquid supplementing pipe is larger than that of the liquid outlet, and the opening and closing piece is provided with a sensing part and a blocking part which are connected with each other. And the sensing part floats on the surface of the slurry in the slurry tank. The slurry tank has the beneficial effects that slurry can be supplemented into the slurry tank in time, so that the slurry in the slurry tank can be maintained at a relatively stable liquid level, the flowing-out speed of the slurry is relatively stable, the speed of the slurry passing through gaps of the scrapers is also relatively stable, the thickness of a produced cast film is relatively uniform, and the quality of the cast film is improved. And the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tape-casting equipment, in particular to a ceramic substrate tape-casting device. Background Art

[0002] With the rapid development of modern information technology, the demand for LTCC (Low temperature co-fired ceramics) ceramic substrates is growing. This technology is an impressive integrated component technology that began to develop in 1982. It has become the mainstream technology of passive integration, the development direction of the passive component field and the economic growth point of the new component industry. At present, most LTCC ceramic substrates are prepared by tape casting. The slurry is first obtained through the grinding and mixing process, and then the slurry is formed into a ceramic green tape through tape casting.

[0003] In the existing ceramic substrate tape-casting molding equipment (such as application number 202321291063.8), during the tape-casting molding process, the slurry in the feed hopper cannot be maintained at a relatively stable liquid level. When the liquid level of the slurry in the feed hopper is too high, the pressure in the feed hopper is too high, the slurry outflow speed is accelerated, and the speed of the slurry passing through the scraper gap is accelerated, which easily causes the thickness of the cast film to increase. When the liquid level of the slurry in the feed hopper is too low, the pressure in the feed hopper is too low, the slurry outflow speed is slowed down, and the speed of the slurry passing through the scraper gap is slowed down, which easily causes the thickness of the cast film to decrease. The produced cast film will have uneven thickness, affecting the quality of the product. If the two ends of the pipeline are respectively connected to the grinding and mixing process and the feed hopper, and a valve is set on the pipeline, when the valve is opened, the slurry will continuously flow into the feed hopper. Although the slurry in the feed hopper can be maintained at a relatively stable liquid level, it is easier to forget to open or close the valve. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies and propose a ceramic substrate tape casting device to solve the technical problem that the slurry in the feed hopper cannot be maintained at a relatively stable liquid level during the tape casting process of the ceramic substrate tape casting equipment in the prior art.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model provides a ceramic substrate tape casting molding device, comprising:

[0006] A slurry tank having a liquid outlet;

[0007] The fluid replenishment mechanism comprises a fluid replenishment tube and an opening and closing member, wherein the nozzle at one end of the fluid replenishment tube is connected to the grinding and mixing process, and the nozzle at the other end of the fluid replenishment tube is connected to the slurry tank, the nozzle area of ​​the fluid replenishment tube is larger than the area of ​​the liquid outlet, and the opening and closing member comprises a sensing part and a sealing part which are connected to each other, the sensing part floats on the surface of the slurry in the slurry tank, and can push the sealing part to seal or remove the nozzle at the other end of the fluid replenishment tube as the liquid level rises and falls.

[0008] Furthermore, the rehydration tube is arranged in the slurry tank, and the rehydration mechanism also includes a connecting tube, the pipe opening at one end of the connecting tube is connected to the grinding and mixing process, and the pipe opening at the other end of the connecting tube is connected to the pipe opening at one end of the rehydration tube via a flange.

[0009] Furthermore, a fluid infusion port is provided at a middle position of the fluid infusion tube, the area of ​​the fluid infusion port is larger than the area of ​​the liquid outlet, the sealing portion is sealingly and slidably disposed in the fluid infusion tube, and can move between the other end of the fluid infusion tube and the fluid infusion port to adjust the opening area of ​​the fluid infusion port; when the liquid level gradually decreases, the sealing portion moves toward the other end of the fluid infusion tube, and the opening area of ​​the fluid infusion port gradually increases; when the liquid level gradually rises, the sealing portion moves toward the liquid outlet, and the opening area of ​​the fluid infusion port gradually decreases.

[0010] Furthermore, the opening and closing member also includes a transmission part, which is arranged in the slurry tank, and the middle position of the transmission part is rotatably connected to a fixed object, and the sensing part and the blocking part are respectively arranged at two ends of the transmission part, and the transmission part is used to convert the upward or downward movement of the sensing part into the movement of the blocking part toward the other end of the infusion tube or toward the liquid outlet.

[0011] Furthermore, the transmission part includes a rotating rod, a first connecting rod and a second connecting rod. The middle position of the rotating rod is rotatably connected to a fixed object, one end of the first connecting rod is hinged to one end of the rotating rod, the other end of the first connecting rod is hinged to the sensing part, one end of the second connecting rod is hinged to the other end of the rotating rod, and the other end of the second connecting rod is hinged to the sealing part.

[0012] Furthermore, the sensing part is a floating ball.

[0013] Furthermore, the connecting tube has a retractable structure, and the fluid replenishment mechanism also includes a height adjustment component, which is connected to the fluid replenishment tube and is used to adjust the vertical position of the fluid replenishment tube in the slurry tank to adjust the preset liquid level of the slurry.

[0014] Furthermore, the height adjustment assembly includes a horizontal rod, a vertical rod, at least two bolts and at least two nuts. The horizontal rod is mounted on the notch of the slurry tank, the upper end of the vertical rod is fixedly connected to the horizontal rod, and the vertical rod is provided with at least two vertical rows of mounting holes at intervals. One end of each of the bolts is fixedly connected to the infusion tube, each of the bolts corresponds to each of the vertical rows of mounting holes one by one, the bolts pass through the mounting holes, and each of the nuts is threadedly connected to each of the bolts one by one.

[0015] Furthermore, the ceramic substrate tape-casting forming device also includes a conveying mechanism and a scraper mechanism. The conveying mechanism is arranged below the slurry tank, and the inlet end of the conveying mechanism is connected to the liquid outlet. The scraper mechanism is arranged directly above the conveying mechanism, and includes a bracket, a scraper and an angle adjustment assembly. The scraper is arranged at an angle, the high end of the scraper is close to the liquid outlet, and the low end of the scraper is away from the liquid outlet. The high end of the scraper is rotatably installed on the bracket, and the angle adjustment assembly is connected to the low end of the scraper, and is used to drive the scraper to rotate so as to adjust the distance between the low end of the scraper and the conveying surface of the conveying mechanism.

[0016] Furthermore, the angle adjustment assembly includes at least one guide rod, a screw rod, a movable seat and a third connecting rod, each of the guide rod and the screw rod are arranged along the conveying direction of the conveying mechanism, both ends of each guide rod are fixed to the bracket, both ends of the screw rod are rotatably connected to the bracket, at least one through hole and a screw hole are opened on the movable seat, and is slidably mounted on each guide rod through each through hole, mounted on the screw rod through the screw hole, and screwed to the screw rod, one end of the third connecting rod is hinged to the movable seat, and the other end of the third connecting rod is hinged to the lower end of the scraper.

[0017] Compared with the prior art, the beneficial effects of the utility model include: during use, when the slurry in the slurry tank decreases, the sensing part will drive the blocking part to move away from the pipe mouth at the other end of the liquid replenishment tube as the liquid level decreases, so that the pipe mouth at the other end of the liquid replenishment tube is opened, and the slurry in the grinding and mixing process flows into the slurry tank along the liquid replenishment tube. Since the pipe mouth area at the other end of the liquid replenishment tube is larger than the area of ​​the liquid outlet, the liquid inlet capacity per unit time will be larger than the liquid outlet capacity, and the liquid level gradually rises. As the liquid level of the slurry in the slurry tank rises, the sensing part will drive the blocking part to block the pipe mouth at the other end of the liquid replenishment tube as the liquid level rises, and the liquid replenishment is stopped, so that the slurry can be replenished in time into the slurry tank, ensuring that the slurry in the slurry tank can be maintained at a relatively stable liquid level, so that the outflow speed of the slurry is relatively stable, and the speed of the slurry passing through the scraper gap is also relatively stable, so that the thickness of the produced cast film is relatively uniform, thereby improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a ceramic substrate tape-casting molding device provided by the utility model;

[0019] Figure 2 yes Figure 1 A cross-sectional view of a fluid replenishment mechanism in FIG.

[0020] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure of the fluid replenishment mechanism in another perspective;

[0021] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the scraper mechanism in another viewing angle;

[0022] In the figure: 100 - slurry tank, 110 - liquid outlet, 200 - liquid replenishing mechanism, 210 - liquid replenishing pipe, 211 - liquid replenishing port, 220 - opening and closing member, 221 - sensing part, 222 - blocking part, 223 - transmission part, 2231 - rotating rod, 2232 - first connecting rod, 2233 - second connecting rod, 230 - connecting pipe, 240 - mounting rod, 250 - height adjustment assembly, 251 - horizontal rod, 252 - vertical rod, 2521 - mounting hole, 253 - bolt, 254 - nut, 300 - conveying mechanism, 400 - scraper mechanism, 410 - bracket, 420 - scraper, 430 - angle adjustment assembly, 431 - guide rod, 432 - screw rod, 433 - moving seat, 434 - third connecting rod. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] The utility model provides a ceramic substrate tape casting device, the structure of which is as follows Figure 1 - Figure 3 As shown, it includes a slurry tank 100 and a liquid replenishing mechanism 200, the slurry tank 100 has a liquid outlet 110; the liquid replenishing mechanism 200 includes a liquid replenishing tube 210 and an opening and closing member 220, the nozzle of one end of the liquid replenishing tube 210 is connected to the grinding and mixing process, and the nozzle of the other end of the liquid replenishing tube 210 is connected to the slurry tank 100, the nozzle area of ​​the liquid replenishing tube 210 is larger than the area of ​​the liquid outlet 110, and the opening and closing member 220 has a sensing part 221 and a blocking part 222 that are interconnected, the sensing part 221 floats on the surface of the slurry in the slurry tank 100, and can push the blocking part 222 to block or remove the nozzle of the other end of the liquid replenishing tube 210 as the liquid level rises and falls.

[0025] During use, when the slurry in the slurry tank 100 decreases, the sensing portion 221 will drive the blocking portion 222 to move away from the nozzle at the other end of the infusion tube 210 as the liquid level decreases, so that the nozzle at the other end of the infusion tube 210 is opened, and the slurry in the grinding and mixing process flows into the slurry tank 100 along the infusion tube 210. Since the nozzle area at the other end of the infusion tube 210 is larger than the area of ​​the liquid outlet 110, the liquid inlet capacity per unit time will be larger than the liquid outlet capacity, and the liquid level gradually rises. As the liquid level of the slurry in the slurry tank 100 rises, the sensing portion 221 will drive the blocking portion 222 to block the pipe mouth at the other end of the liquid replenishing tube 210 as the liquid level rises, and the liquid replenishing is stopped, so that the slurry can be replenished into the slurry tank 100 in time, ensuring that the slurry in the slurry tank 100 can be maintained at a relatively stable liquid level, so that the outflow speed of the slurry is relatively stable, and the speed of the slurry passing through the scraper gap is also relatively stable, so that the thickness of the produced cast film is relatively uniform, thereby improving the quality of the product.

[0026] As a preferred embodiment, please refer to Figure 1 and Figure 2 The refilling tube 210 is arranged in the slurry tank 100, and the refilling mechanism 200 also includes a connecting tube 230. The pipe opening at one end of the connecting tube 230 is connected to the grinding and mixing process, and the pipe opening at the other end of the connecting tube 230 is connected to the pipe opening at one end of the refilling tube 210 via a flange, so that the refilling tube 210 can be connected to the grinding and mixing process through the connecting tube 230.

[0027] As a preferred embodiment, please refer to Figure 2 and Figure 3A liquid infusion port 211 is provided at the middle position of the liquid infusion tube 210, and the area of ​​the liquid infusion port 211 is larger than the area of ​​the liquid outlet 110. The blocking portion 222 is sealingly and slidably arranged in the liquid infusion tube 210, and can move between the other end of the liquid infusion tube 210 and the liquid infusion port 211 to adjust the opening area of ​​the liquid infusion port 211. When the liquid level gradually decreases, the blocking portion 222 moves toward the other end of the liquid infusion tube 210, and the opening area of ​​the liquid infusion port 211 gradually increases. When the liquid level gradually rises, the blocking portion 222 moves toward the liquid outlet 110, and the opening area of ​​the liquid infusion port 211 gradually decreases. When the preset liquid level of the slurry gradually decreases, the sealing portion 222 moves toward the liquid outlet 110, and the opening area of ​​the liquid infusion port 211 gradually decreases. When the liquid level gradually rises, the blocking portion 222 moves toward the liquid outlet 110, and the opening area of ​​the liquid infusion port 211 gradually decreases until the opening area of ​​the liquid infusion port 211 is smaller than the area of ​​the liquid outlet 110. The liquid inlet capacity per unit time will be larger than the liquid outlet capacity, and the liquid level gradually decreases again. In this cycle, the slurry in the slurry tank 100 can be maintained at a relatively stable liquid level.

[0028] As a preferred embodiment, please refer to Figure 2 and Figure 3 The opening and closing member 220 also includes a transmission part 223, which is arranged in the slurry tank 100, and is rotatably connected to a fixed object at the middle position of the transmission part 223. The sensing part 221 and the blocking part 222 are respectively arranged at two ends of the transmission part 223. The transmission part 223 is used to convert the upward or downward movement of the sensing part 221 into the movement of the blocking part 222 toward the other end of the infusion tube 210 or toward the liquid outlet 110, so as to realize the connection between the sensing part 221 and the blocking part 222 through the transmission part 223.

[0029] As a preferred embodiment, please refer to Figure 2 and Figure 3The transmission part 223 includes a rotating rod 2231, a first connecting rod 2232 and a second connecting rod 2233. The middle position of the rotating rod 2231 is rotatably connected to a fixed object. One end of the first connecting rod 2232 is hinged to one end of the rotating rod 2231, and the other end of the first connecting rod 2232 is hinged to the sensing part 221. One end of the second connecting rod 2233 is hinged to the other end of the rotating rod 2231, and the other end of the second connecting rod 2233 is hinged to the blocking part 222. When the preset liquid level of the slurry gradually decreases, the sensing part 221 decreases accordingly, and the rotating rod 2231 is driven to rotate via the first connecting rod 2232, and then the blocking part 222 is driven to move toward the other end of the infusion tube 210 via the second connecting rod 2233. , the opening area of ​​the liquid infusion port 211 gradually increases until the opening area of ​​the liquid infusion port 211 is larger than the area of ​​the liquid outlet 110, the liquid inlet capacity per unit time will be larger than the liquid outlet capacity, and the liquid level gradually rises. When the liquid level gradually rises, the sensing part 221 rises accordingly, and drives the rotating rod 2231 to rotate via the first connecting rod 2232, and then drives the blocking part 222 to move toward the liquid outlet 110 via the second connecting rod 2233, and the opening area of ​​the liquid infusion port 211 gradually decreases until the opening area of ​​the liquid infusion port 211 is smaller than the area of ​​the liquid outlet 110, the liquid inlet capacity per unit time will be smaller than the liquid outlet capacity, and the liquid level gradually decreases again, and the cycle is repeated, and the slurry in the slurry tank 100 can be maintained at a relatively stable liquid level.

[0030] As a preferred embodiment, please refer to Figure 2 and Figure 3 The fluid replenishment mechanism 200 also includes a mounting rod 240, one end of which is fixedly connected to the other end of the fluid replenishment tube 210, and the middle position of the rotating rod 2231 is hinged to the other end of the mounting rod 240, so that the rotation of the rotating rod 2231 can be supported by the mounting rod 240.

[0031] As a preferred embodiment, please refer to Figure 2 The sensing part 221 is a floating ball that can float on the water surface.

[0032] As a preferred embodiment, please refer to Figure 2 The blocking portion 222 is a piston to achieve a sealed sliding connection with the fluid infusion tube 210 .

[0033] As a preferred embodiment, please refer to Figure 2 and Figure 3The connecting tube 230 has a retractable structure, and the fluid replenishment mechanism 200 also includes a height adjustment component 250, which is connected to the fluid replenishment tube 210 and is used to adjust the vertical position of the fluid replenishment tube 210 in the slurry tank 100 to adjust the preset liquid level of the slurry. When the vertical position of the fluid replenishment tube 210 in the slurry tank 100 changes, the vertical position of the sensing part 221 in the slurry tank 100 will also change accordingly, and the preset liquid level of the slurry in the slurry tank 100 will change.

[0034] As a preferred embodiment, please refer to Figure 3 The height adjustment assembly 250 includes a horizontal rod 251, a vertical rod 252, at least two bolts 253 and at least two nuts 254. The horizontal rod 251 is set on the notch of the slurry tank 100, and the upper end of the vertical rod 252 is fixedly connected to the horizontal rod 251. The vertical rod 252 is provided with at least two vertical rows of mounting holes 2521 at intervals. One end of each of the bolts 253 is fixedly connected to the infusion tube 210, and each of the bolts 253 corresponds to each of the vertical rows of mounting holes 2521. The bolts 253 pass through the mounting holes 2521, and each of the nuts 254 is screwed to each of the bolts 253 in a one-to-one manner. When the preset liquid level of the slurry in the slurry tank 100 needs to be adjusted, the nut 254 is screwed to the bolt 253 in a one-to-one manner. The nuts 254 are lowered, and the bolts 253 are respectively inserted into the mounting holes 2521 corresponding to the other preset liquid levels, and are tightened by the nuts 254, so that the vertical position of the infusion tube 210 in the slurry tank 100 can be adjusted. When the vertical position of the infusion tube 210 in the slurry tank 100 changes, the vertical position of the sensing part 221 in the slurry tank 100 will also change accordingly, and the preset liquid level of the slurry in the slurry tank 100 will change, thereby improving the applicability of the infusion mechanism 200. At least two vertical rows of mounting holes 2521 are provided to limit the infusion tube 210 and prevent the infusion tube 210 from rotating.

[0035] As a preferred embodiment, please refer to Figure 1 and Figure 4The ceramic substrate casting molding device also includes a conveying mechanism 300 and a scraper mechanism 400. The conveying mechanism 300 is arranged below the slurry tank 100, and the inlet end of the conveying mechanism 300 is connected to the liquid outlet 110. The scraper mechanism 400 is arranged directly above the conveying mechanism 300, and includes a bracket 410, a scraper 420 and an angle adjustment component 430. The scraper 420 is tilted, the high end of the scraper 420 is close to the liquid outlet 110, and the low end of the scraper 420 is away from the liquid outlet 110. The high end of the scraper 420 is rotatably installed on the bracket 410, and the angle adjustment component 430 is connected to the low end of the scraper 420, and is used to drive the scraper 420 to rotate to adjust the distance between the low end of the scraper 420 and the conveying surface of the conveying mechanism 300, so as to adjust the thickness of the cast film.

[0036] As a preferred embodiment, please refer to Figure 4 The angle adjustment assembly 430 includes at least one guide rod 431, a screw rod 432, a movable seat 433 and a third connecting rod 434. Each of the guide rods 431 and the screw rod 432 are arranged along the conveying direction of the conveying mechanism 300. Both ends of each of the guide rods 431 are fixedly connected to the bracket 410. Both ends of the screw rod 432 are rotatably connected to the bracket 410. At least one through hole and a screw hole are opened on the movable seat 433, and the movable seat 433 is slidably sleeved on each of the guide rods 431 through each of the through holes, sleeved on the screw rod 432 through the screw hole, and screwed with the screw 432. The third connecting rod One end of the rod 434 is hinged to the movable seat 433, and the other end of the third connecting rod 434 is hinged to the lower end of the scraper 420. When the thickness of the cast film needs to be adjusted, the screw 432 is rotated forward or reversed. Since the movable seat 433 is screwed to the screw 432 and the movable seat 433 is limited by the guide rod 431, the movable seat 433 can be close to or away from the liquid outlet 110 along the conveying direction of the conveying mechanism 300, so that the distance between the lower end of the scraper 420 and the conveying surface of the conveying mechanism 300 can be adjusted, thereby adjusting the thickness of the cast film.

[0037] In order to better understand the present invention, the following Figure 1 - Figure 4 The working principle of the technical solution of the utility model is described in detail:

[0038] During use, when the preset liquid level of the slurry gradually decreases, the blocking portion 222 moves toward the other end of the liquid infusion tube 210, and the opening area of ​​the liquid infusion port 211 gradually increases until the opening area of ​​the liquid infusion port 211 is larger than the area of ​​the liquid outlet 110, and the liquid inlet capacity per unit time is larger than the liquid outlet capacity, and the liquid level gradually rises. When the liquid level gradually rises, the blocking portion 222 moves toward the liquid outlet 110, and the opening area of ​​the liquid infusion port 211 gradually decreases until the opening area of ​​the liquid infusion port 211 is larger than the area of ​​the liquid outlet 110. The area of ​​the liquid outlet 110 is smaller than that of the liquid outlet 110, and the liquid inlet capacity per unit time is smaller than the liquid outlet capacity, and the liquid level gradually decreases. In this cycle, the slurry in the slurry tank 100 can be maintained at a relatively stable liquid level, so that the outflow speed of the slurry is relatively stable, and the speed of the slurry passing through the gap of the scraper 420 is also relatively stable, so that the thickness of the produced cast film is relatively uniform, and the quality of the product is improved. When it is necessary to adjust the preset liquid level of the slurry in the slurry tank 100, remove each of the nuts 254 and tighten each nut 254. The bolts 253 are respectively inserted into the mounting holes 2521 corresponding to the other preset liquid levels, and are fastened by the nuts 254, so that the vertical position of the infusion tube 210 in the slurry tank 100 can be adjusted. When the vertical position of the infusion tube 210 in the slurry tank 100 changes, the vertical position of the sensing part 221 in the slurry tank 100 will also change accordingly, and the preset liquid level of the slurry in the slurry tank 100 will change, thereby improving the infusion mechanism. 200 is applicable. When the thickness of the cast film needs to be adjusted, the screw 432 is rotated forward or reversed. Since the movable seat 433 is screwed to the screw 432 and the movable seat 433 is limited by the guide rod 431, the movable seat 433 can be close to or away from the liquid outlet 110 along the conveying direction of the conveying mechanism 300, so that the distance between the lower end of the scraper 420 and the conveying surface of the conveying mechanism 300 can be adjusted, thereby adjusting the thickness of the cast film.

[0039] The utility model provides a ceramic substrate tape casting device with the following beneficial effects:

[0040] (1) The distance between the lower end of the scraper 420 and the conveying surface of the conveying mechanism 300 can be adjusted by the angle adjustment assembly 430, so that the thickness of the cast film can be adjusted;

[0041] (2) The vertical position of the infusion tube 210 in the slurry tank 100 can be adjusted by the height adjustment component 250. When the vertical position of the infusion tube 210 in the slurry tank 100 changes, the vertical position of the sensing part 221 in the slurry tank 100 will also change accordingly, and the preset liquid level of the slurry in the slurry tank 100 will change, thereby improving the applicability of the infusion mechanism 200;

[0042] (3) The slurry in the slurry tank 100 can be maintained at a relatively stable liquid level, so that the outflow speed of the slurry is relatively stable, and the speed of the slurry passing through the gap of the scraper 420 is also relatively stable, so that the thickness of the produced cast film is relatively uniform, thereby improving the quality of the product.

[0043] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A ceramic substrate tape casting device, characterized in that: include: A slurry tank having a liquid outlet; The fluid replenishment mechanism comprises a fluid replenishment tube and an opening and closing member, wherein the nozzle at one end of the fluid replenishment tube is connected to the grinding and mixing process, and the nozzle at the other end of the fluid replenishment tube is connected to the slurry tank, the nozzle area of ​​the fluid replenishment tube is larger than the area of ​​the liquid outlet, and the opening and closing member comprises a sensing part and a sealing part which are connected to each other, the sensing part floats on the surface of the slurry in the slurry tank, and can push the sealing part to seal or remove the nozzle at the other end of the fluid replenishment tube as the liquid level rises and falls.

2. The ceramic substrate tape casting device according to claim 1, characterized in that: The rehydration tube is arranged in the slurry tank, and the rehydration mechanism also includes a connecting tube, the pipe opening at one end of the connecting tube is connected to the grinding and mixing process, and the pipe opening at the other end of the connecting tube is connected to the pipe opening at one end of the rehydration tube via a flange.

3. The ceramic substrate tape casting device according to claim 2, characterized in that: A fluid infusion port is provided at the middle position of the fluid infusion tube, and the area of ​​the fluid infusion port is larger than the area of ​​the liquid outlet. The blocking portion is sealingly and slidably disposed in the fluid infusion tube, and can move between the other end of the fluid infusion tube and the fluid infusion port to adjust the opening area of ​​the fluid infusion port. When the liquid level gradually decreases, the blocking portion moves toward the other end of the fluid infusion tube, and the opening area of ​​the fluid infusion port gradually increases. When the liquid level gradually rises, the blocking portion moves toward the liquid outlet, and the opening area of ​​the fluid infusion port gradually decreases.

4. The ceramic substrate tape casting device according to claim 3, characterized in that: The opening and closing member also includes a transmission part, which is arranged in the slurry tank, and is rotatably connected to a fixed object at a middle position of the transmission part. The sensing part and the blocking part are respectively arranged at two ends of the transmission part, and the transmission part is used to convert the upward or downward movement of the sensing part into the movement of the blocking part toward the other end of the infusion tube or toward the liquid outlet.

5. The ceramic substrate tape casting device according to claim 4, characterized in that: The transmission part includes a rotating rod, a first connecting rod and a second connecting rod. The middle position of the rotating rod is rotatably connected to a fixed object. One end of the first connecting rod is hinged to one end of the rotating rod, the other end of the first connecting rod is hinged to the sensing part, one end of the second connecting rod is hinged to the other end of the rotating rod, and the other end of the second connecting rod is hinged to the sealing part.

6. The ceramic substrate tape casting device according to claim 5, characterized in that: The sensing part is a floating ball.

7. The ceramic substrate tape casting device according to claim 3, characterized in that: The connecting pipe has a retractable structure, and the fluid replenishment mechanism also includes a height adjustment component, which is connected to the fluid replenishment pipe and is used to adjust the vertical position of the fluid replenishment pipe in the slurry tank to adjust the preset liquid level of the slurry.

8. The ceramic substrate tape casting device according to claim 7, characterized in that: The height adjustment assembly includes a horizontal rod, a vertical rod, at least two bolts and at least two nuts. The horizontal rod is mounted on the notch of the slurry tank. The upper end of the vertical rod is fixedly connected to the horizontal rod. The vertical rod is provided with at least two vertical rows of mounting holes at intervals. One end of each of the bolts is fixedly connected to the infusion tube. Each of the bolts corresponds to each of the vertical rows of mounting holes one by one. The bolts pass through the mounting holes, and each of the nuts is threadedly connected to each of the bolts one by one.

9. The ceramic substrate tape casting device according to claim 1, characterized in that: It also includes a conveying mechanism and a scraper mechanism, wherein the conveying mechanism is arranged below the slurry tank, the inlet end of the conveying mechanism is connected to the liquid outlet, and the scraper mechanism is arranged directly above the conveying mechanism, and includes a bracket, a scraper and an angle adjustment component, the scraper is arranged at an angle, the high end of the scraper is close to the liquid outlet, and the low end of the scraper is away from the liquid outlet, the high end of the scraper is rotatably installed on the bracket, and the angle adjustment component is connected to the low end of the scraper, and is used to drive the scraper to rotate so as to adjust the distance between the low end of the scraper and the conveying surface of the conveying mechanism.

10. The ceramic substrate tape casting device according to claim 9, characterized in that: The angle adjustment assembly includes at least one guide rod, a screw rod, a movable seat and a third connecting rod. Each of the guide rods and the screw rod is arranged along the conveying direction of the conveying mechanism. Both ends of each of the guide rods are fixed to the bracket, and both ends of the screw rod are rotatably connected to the bracket. At least one through hole and a screw hole are opened on the movable seat, and the movable seat is slidably mounted on each of the guide rods through each of the through holes, mounted on the screw rod through the screw holes, and screwed to the screw rod. One end of the third connecting rod is hinged to the movable seat, and the other end of the third connecting rod is hinged to the lower end of the scraper.

Images