Resin adhesive filtering auxiliary device and resin adhesive filtering system

Abstract

The utility model relates to the technical field of ceramic capacitors, in particular to a resin adhesive filtering auxiliary device and a resin adhesive filtering system.The resin adhesive filtering auxiliary device comprises a heating tank, the heating tank is provided with a sealing cavity used for containing a resin adhesive, and the bottom of the heating tank is provided with a connector; the heating tank is further provided with an air inlet for introducing compressed air into the sealing cavity, and the air inlet is communicated with the top of the sealing cavity; during use, the connecting joint is connected with a feeding hole of a filtering device, the viscosity of the resin adhesive can be reduced by heating the resin adhesive through the heating tank, the filtering speed of the resin adhesive during filtering is increased, and compressed gas is introduced into the top of the sealing cavity to pressurize the resin adhesive in the sealing cavity; therefore, the resin adhesive filtering auxiliary device can heat and pressurize the resin adhesive before filtering, the filtering speed of the resin adhesive is increased, and the production efficiency of the resin adhesive is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic capacitors, in particular to a resin adhesive filtering auxiliary device and a resin adhesive filtering system. Background Art

[0002] The miniaturization and multifunctionality of electronic devices has increased the demand for multilayer ceramic capacitors. The use of smaller and higher capacity multilayer ceramic capacitors has increased. As a result, the processing methods and raw material processing of thin dielectric diaphragms have become mainstream, and the corresponding key control points have become increasingly important. When manufacturing multilayer ceramic capacitors, it is necessary to mix and disperse the ceramic powder with organic solvents and additives, add a resin binder formed by dissolving PVB resin to form a relatively stable slurry, and use screen printing to form electrode patterns on unsintered ceramic diaphragms.

[0003] If the resin adhesive contains abnormal impurities, the impurities will affect the molding of the thin dielectric diaphragm, and further affect the processing quality of the entire multilayer ceramic capacitor chip. Since the resin adhesive used in the field of multilayer ceramic capacitors has a large molecular weight and is difficult to dissolve, it is easy for undissolved PVB resin to exist in the resin adhesive, which will affect the subsequent molding of the thin dielectric diaphragm, and further affect the processing quality of the entire multilayer ceramic capacitor chip. In order to improve the quality of the resin adhesive, it is necessary to add a filtration process after the resin adhesive is dissolved. However, the resin adhesive has high viscosity and poor fluidity, and its permeability is poor when passing through the filtration device, and the filtration speed is slow, resulting in low production efficiency of the resin adhesive. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the filtration speed of the existing resin adhesive for multilayer ceramic capacitors is slow, resulting in low production efficiency of the resin adhesive.

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a resin adhesive filtering auxiliary device, comprising a heating tank, the heating tank is provided with a sealed cavity for accommodating the resin adhesive, and the bottom of the heating tank is provided with a connecting joint;

[0006] The heating tank also has an air inlet for introducing compressed gas into the sealed cavity, and the air inlet is communicated with the top of the sealed cavity.

[0007] As a preferred solution, a back pressure valve is provided on the top of the heating tank.

[0008] As a preferred solution, a dust filter is provided at the air inlet.

[0009] As a preferred solution, the heating tank is provided with a temperature sensor for testing the temperature of the resin adhesive in the sealing cavity.

[0010] As a preferred solution, the temperature sensor is a telescopic temperature probe, a fixed end of the telescopic temperature probe is fixed to the top wall of the heating tank, and a measuring end of the telescopic temperature probe is arranged downward.

[0011] As a preferred solution, the heating tank comprises a sealing tank and a heating jacket sleeved outside the sealing tank, and a hot runner is arranged in the heating jacket;

[0012] The resin adhesive filtering auxiliary device also includes a heater and a circulation pump. The heater is provided with a heating chamber. The heating chamber, the circulation pump and the hot runner are sequentially connected to form a circulation heating loop.

[0013] As a preferred solution, a temperature probe is provided in the heating chamber.

[0014] As a preferred solution, a transparent observation window is provided on the top of the heating tank.

[0015] As a preferred solution, a discharge pipe is provided at the bottom of the heating tank, the connecting joint is connected to one end of the discharge pipe away from the heating tank, and the discharge pipe is connected to a pressure sensor for testing the liquid pressure of the discharge pipe.

[0016] A resin adhesive filtering system comprises a compressed gas supply device, a filtering device and the above-mentioned resin adhesive filtering auxiliary device, wherein the compressed gas supply device is connected to the air inlet of a heating tank, and the connecting joint of the heating tank is connected to the feed port of the filtering device.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The resin adhesive filtering auxiliary device of the utility model comprises a heating tank, the heating tank is provided with a sealed cavity for accommodating the resin adhesive, and a connecting joint is provided at the bottom of the heating tank; the heating tank is also provided with an air inlet for introducing compressed gas into the sealed cavity, and the air inlet is connected to the top of the sealed cavity; when in use, the connecting joint is connected to the feed port of the filtering device, and the resin adhesive is heated by the heating tank to reduce the viscosity of the resin adhesive, accelerate the filtration speed of the resin adhesive during filtration, and the resin adhesive in the sealed cavity can be pressurized by introducing compressed gas into the top of the sealed cavity; therefore, the resin adhesive filtering auxiliary device of the utility model can heat and pressurize the resin adhesive before filtration, increase the filtration speed of the resin adhesive, and improve the production efficiency of the resin adhesive. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the resin adhesive filtration auxiliary device of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the tank cover;

[0021] Figure 3 It is a schematic diagram of the structure of the tank;

[0022] Figure 4 is a schematic diagram of the structure of the heater;

[0023] In the figure, 1. heating tank, 11. sealing tank, 111. tank cover, 1111. air inlet, 1112. back pressure valve, 1113. temperature sensor, 1114. transparent observation window, 112. tank body, 1121. discharge pipe, 1122. connecting joint, 1123. pressure sensor, 12. heating jacket, 2. heater, 21. temperature probe, 22. heating rod. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. It should be understood that the terms "first", "second", etc. are used in the present utility model to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information.

[0026] like Figures 1 to 4As shown, the utility model is a resin adhesive filtering auxiliary device, which is used to assist the filtering device in filtering resin adhesive. The preferred embodiment of the resin adhesive filtering auxiliary device of the utility model includes a heating tank 1, the heating tank 1 is provided with a sealed cavity for accommodating the resin adhesive, and the bottom of the heating tank 1 is provided with a connecting joint 1122 connected to the bottom of the sealed cavity; the heating tank 1 is also provided with an air inlet 1111 for introducing compressed gas into the sealed cavity, and the air inlet 1111 is connected to the top of the sealed cavity. The heating tank 1 can heat the resin adhesive to reduce the viscosity of the resin adhesive, speed up the filtration speed of the resin adhesive during filtration, and can pressurize the resin adhesive in the sealed cavity by introducing compressed gas into the top of the sealed cavity; therefore, the resin adhesive filtering auxiliary device of the utility model can heat and pressurize the resin adhesive before filtration, increase the filtration speed of the resin adhesive, and improve the production efficiency of the resin adhesive.

[0027] A discharge end is provided at the bottom of the heating tank, and a connecting joint 122 is connected to the discharge end. Compressed gas can be provided by a compressor. A back pressure valve 1112 is provided at the top of the heating tank 1. If the air pressure in the heating tank 1 exceeds a safe level, the back pressure valve 1112 releases the pressure to ensure working safety in the heating tank 1.

[0028] In order to prevent impurities in the compressed air from mixing into the resin adhesive in the heating tank 1, a dust filter is provided at the air inlet 1111.

[0029] In order to ensure that the temperature of the resin adhesive in the heating tank 1 is within a reasonable range, in this embodiment, the heating tank 1 is provided with a temperature sensor 1113 for testing the temperature of the resin adhesive in the sealed cavity.

[0030] In order to facilitate the measurement of the temperature of the resin adhesive at different depths, in this embodiment, the temperature sensor 1113 is a telescopic temperature probe 21, the fixed end of the telescopic temperature probe 21 is fixed to the top wall of the heating tank 1, and the measuring end of the telescopic temperature probe 21 is arranged downward. Specifically, by increasing the extension length of the telescopic temperature probe 21, the temperature of the deeper resin adhesive can be measured. In this embodiment, the optimal position of the telescopic temperature probe 21 should be 15 cm to 30 cm below the liquid surface, at which time more accurate temperature information can be obtained.

[0031] In this embodiment, in order to facilitate observation of the conditions inside the heating tank 1, a transparent observation window 1114 is provided on the top of the heating tank 1, and the measuring position of the telescopic temperature probe 21 can be determined through the observation window.

[0032] In this embodiment, the heating tank 1 includes a sealed tank 11 and a heating jacket 12 sleeved on the outside of the sealed tank 11, the heating jacket 12 has a hot runner, and the heating tank 1 also includes a heating device for passing a heating solution into the hot runner. The volume of the sealed tank 11 is 300L to 500L, and the sealed tank 11 includes a tank cover 111 and a tank body 112, the tank cover 111 and the tank body 112 are detachably connected, and the tank cover 111 and the tank body 112 can maintain airtightness under a pressure of not less than 0.8Mpa, and both have explosion-proof performance.

[0033] Specifically, the heating device includes a heater 2 and a circulation pump. The heater 2 is provided with a heating chamber. The heating chamber, the circulation pump and the hot runner are sequentially connected to form a circulating heating loop. The circulation pump can remove the heating liquid from the circulation between the heater 2 and the hot runner to ensure the heating effect. Figure 4 As shown, in this embodiment, a temperature probe 21 is provided in a heating chamber in the heater 2, a heating rod 22 is provided in the heating chamber, and the volume of the heating chamber is 50L to 80L.

[0034] In this embodiment, a discharge pipe 1121 is provided at the bottom of the heating tank 1, a connection joint 1122 is connected to one end of the discharge pipe 1121 away from the heating tank 1, and a pressure sensor 1123 for testing the liquid pressure of the discharge pipe 1121 is connected to the discharge pipe 1121. The pressure sensor 1123 can detect whether the filter device is blocked. When the test value of the pressure sensor 1123 is too large, it means that the filter device is blocked, and the operator needs to clean the filter device technically.

[0035] The method of using the resin adhesive filtration auxiliary device of this embodiment is as follows:

[0036] Step 1: According to the performance requirements of the target resin adhesive, select a filter device with a suitable filtration accuracy. The filter device can be a standard product or a non-standard product. Connect it to the bottom of the heating tank 1 through the connecting joint 1122 to introduce the resin adhesive into the heating tank 1.

[0037] Step 2: Set the water temperature in the heater 2 and circulate the hot water to slowly heat the resin adhesive until the temperature of the resin adhesive reaches the filtering requirement.

[0038] The flow rate of the water pump is adjustable, and the best flow rate for hot water circulation is between 450L / hour and 900L / hour. If it is too low, the material heating rate will be too slow, and if it is too high, the heating sleeve 12 will be under too much pressure and be damaged. The telescopic temperature probe 21 in the heating tank 1 is inserted into the resin adhesive, and the next step is performed after the telescopic temperature probe 21 shows that the resin adhesive temperature has reached the target temperature.

[0039] Step 3: Compressed air is introduced into the heating tank 1 to pressurize the heating tank 1. The resin adhesive in the tank passes through the filtering device under the action of the pressure difference and begins to be filtered.

[0040] In summary, the resin adhesive filtering auxiliary device of the utility model comprises a heating tank 1, the heating tank 1 is provided with a sealed cavity for accommodating resin adhesive, the heating tank 1 is provided with a discharge end connected to the bottom of the sealed cavity, the discharge end is provided with a connecting joint 1122 for sealingly connecting the filtering device; the heating tank 1 is also provided with an air inlet 1111 for introducing compressed gas into the sealed cavity, and the air inlet 1111 is connected to the top of the sealed cavity; the heating tank 1 can heat the resin adhesive to reduce the viscosity of the resin adhesive, speed up the filtration speed of the resin adhesive during filtration, and can pressurize the resin adhesive in the sealed cavity by introducing compressed gas into the top of the sealed cavity; therefore, the resin adhesive filtering auxiliary device of the utility model can heat and pressurize the resin adhesive before filtration, increase the filtration speed of the resin adhesive, and improve the production efficiency of the resin adhesive.

[0041] An embodiment of resin adhesive filtration includes a compressed gas supply device, a filtering device and the above-mentioned resin adhesive filtration auxiliary device, the compressed gas supply device is connected to the air inlet 1111 of the heating tank 1, and the connecting joint 1122 of the heating tank 1 is connected to the feed port of the filtering device.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A resin adhesive filtration auxiliary device, characterized in that: The heating tank (1) comprises a heating tank (1), wherein the heating tank (1) is provided with a sealed cavity for accommodating a resin adhesive, and a connecting joint (1122) is provided at the bottom of the heating tank (1); The heating tank (1) also has an air inlet (1111) for introducing compressed gas into the sealed cavity, and the air inlet (1111) is connected to the top of the sealed cavity.

2. The resin binder filtration auxiliary device according to claim 1, characterized in that: A back pressure valve (1112) is provided on the top of the heating tank (1).

3. The resin binder filtration auxiliary device according to claim 1, characterized in that: A dust filter is provided at the air inlet (1111).

4. The resin binder filtration auxiliary device according to claim 1, characterized in that: The heating tank (1) is provided with a temperature sensor (1113) for testing the temperature of the resin adhesive in the sealing cavity.

5. The resin binder filtration auxiliary device according to claim 4, characterized in that: The temperature sensor (1113) is a telescopic temperature probe (21), the fixed end of the telescopic temperature probe (21) is fixed to the top wall of the heating tank (1), and the measuring end of the telescopic temperature probe (21) is arranged downward.

6. The resin binder filtration auxiliary device according to claim 1, characterized in that: The heating tank (1) comprises a sealing tank (11) and a heating jacket (12) sleeved on the outside of the sealing tank (11), and a hot runner is provided in the heating jacket (12); The resin adhesive filtering auxiliary device also includes a heater (2) and a circulation pump. The heater (2) is provided with a heating chamber. The heating chamber, the circulation pump and the hot runner are connected in sequence to form a circulation heating loop.

7. The resin binder filtration auxiliary device according to claim 6, characterized in that: A temperature probe (21) is arranged in the heating chamber.

8. The resin binder filtration auxiliary device according to claim 1, characterized in that: A transparent observation window (1114) is provided on the top of the heating tank (1).

9. The resin binder filtration auxiliary device according to claim 1, characterized in that: A discharge pipe (1121) is provided at the bottom of the heating tank (1), the connection joint (1122) is connected to one end of the discharge pipe (1121) away from the heating tank (1), and the discharge pipe (1121) is connected to a pressure sensor (1123) for testing the liquid pressure of the discharge pipe (1121).

10. A resin adhesive filtration system, characterized in that: It comprises a compressed gas supply device, a filtering device and a resin adhesive filtering auxiliary device as described in any one of claims 1 to 9, wherein the compressed gas supply device is connected to the air inlet (1111) of the heating tank (1), and the connecting joint (1122) of the heating tank (1) is connected to the feed port of the filtering device.

Images