阅读说明：本技术 一种高绝缘性云母电容器及其制备方法 (High-insulativity mica capacitor and preparation method thereof ) 是由 张丽 胡程程 胡天杰 胡天桥 于 2020-11-11 设计创作，主要内容包括：本发明公开一种高绝缘性云母电容器及其制备方法,包括绝缘外壳,绝缘外壳内设置有第一金属箔、第二金属箔,第一金属箔、第二金属箔分别设置于绝缘外壳内腔两侧,第一金属箔、第二金属箔之间设置有两个云母护片,两个云母护片之间设置有云母片,绝缘外壳上安装有两个引线。本发明通过采用合理的配方及比例,各组分相辅相成,协同作用,使得制备得到的高绝缘性云母电容器外壳强度高,绝缘性、阻燃性好,抗老化性强,同时该高绝缘性云母电容器通过散热片的安装以及散热片上散热孔的开设,使得该高绝缘性云母电容器具有良好的散热效果；通过刀座的间距调节,位置调节以及角度调节可以高效的完成对云母护片的裁切,使得云母护片的裁切效率更高。(The invention discloses a high-insulativity mica capacitor and a preparation method thereof, and the high-insulativity mica capacitor comprises an insulating shell, wherein a first metal foil and a second metal foil are arranged in the insulating shell, the first metal foil and the second metal foil are respectively arranged at two sides of an inner cavity of the insulating shell, two mica protection sheets are arranged between the first metal foil and the second metal foil, a mica sheet is arranged between the two mica protection sheets, and two leads are arranged on the insulating shell. According to the invention, by adopting a reasonable formula and proportion, all components supplement each other and have a synergistic effect, the prepared high-insulation mica capacitor shell has high strength, good insulation and flame retardance and strong aging resistance, and meanwhile, the high-insulation mica capacitor has a good heat dissipation effect through the installation of the heat dissipation fins and the arrangement of the heat dissipation holes on the heat dissipation fins; through the interval adjustment of blade holder, position control and angle modulation can accomplish the cutting to the mica bluff piece by the efficient for the cutting efficiency of mica bluff piece is higher.)

1. A high-insulation mica capacitor is characterized by comprising an insulating shell (100), wherein a first metal foil (300) and a second metal foil (400) are arranged in the insulating shell (100), the first metal foil (300) and the second metal foil (400) are respectively arranged on two sides of an inner cavity of the insulating shell (100), two mica protection sheets (500) are arranged between the first metal foil (300) and the second metal foil (400), a mica sheet (600) is arranged between the two mica protection sheets (500), two leads (200) are arranged on the insulating shell (100), a plurality of radiating fins (800) are arranged on the insulating shell (100), the radiating fins (800) are arranged on the same side of the insulating shell (100) at equal intervals, and radiating holes (900) are formed in the radiating fins (800);

the high-insulation mica capacitor is prepared by the following steps:

the method comprises the following steps: weighing 50-80 parts of ABS, 5-10 parts of glass fiber, 20-50 parts of amino resin, 20-30 parts of rubber resin, 8-15 parts of silicon dioxide, 5-8 parts of silicon carbide whisker, 3-5 parts of hexamethylenetetramine, 5-8 parts of dicumyl peroxide, 15-20 parts of polystyrene resin, 10-20 parts of polyvinyl chloride micropowder, 8-14 parts of polyvinylidene fluoride micropowder, 10-20 parts of SBS thermoplastic elastomer, 4-6 parts of magnesium oxide, 3-8 parts of aluminum oxide, 7-11 parts of polycaprolactone micropowder, 5-8 parts of tributyl citrate, 5-8 parts of stearic acid, 6-12 parts of polyethylene wax, 5-8 parts of naphthenic oil, 3-5 parts of beryllium oxide, 5-8 parts of maleic anhydride grafted polyethylene, 10-12 parts of flame retardant, 3-5 parts of coupling agent, 5-8 parts of toughening agent, 3-5 parts of anti-aging agent and 5-8 parts of filler, drying ABS at 90 ℃ for 4 hours, then pouring the ABS into an internal mixer, then adding glass fiber, amino resin, rubber resin, silicon dioxide, silicon carbide whisker, hexamethylenetetramine, dicumyl peroxide, polystyrene resin, polyvinyl chloride micropowder, polyvinylidene fluoride micropowder, flame retardant, coupling agent, toughening agent, anti-aging agent and filler, and carrying out internal mixing at the temperature of 130-;

step two: adding magnesium oxide, aluminum oxide, beryllium oxide and SBS thermoplastic elastomer into an ultrasonic dispersion machine for dispersion, wherein the ultrasonic power is 150-180W, the dispersion time is 30-45 minutes, the dispersion temperature is 80-120 ℃, then adding polycaprolactone micro powder, tributyl citrate, stearic acid, polyethylene wax, naphthenic oil and maleic anhydride grafted polyethylene, adjusting the ultrasonic power to 200-240W, the dispersion time is 20-30 minutes, and the dispersion temperature is 150-180 ℃ to obtain a mixture B;

step three: pouring the mixture A and the mixture B into a high-pressure stirring kettle, mixing and stirring for 20-30 minutes to obtain a mixture C, wherein the mixing and stirring are completed in 5 stages: stage 1: the pressure of the high-pressure stirring kettle is set to be 150-; stage 2: the pressure of the high-pressure stirring kettle is set to be 140mbar in 130-; stage 3: the pressure of the high-pressure stirring kettle is set to be 110-; and 4, stage: setting the pressure of the high-pressure stirring kettle to be 85-100mbar, the temperature to be 110-; stage 5: setting the pressure of the high-pressure stirring kettle to be 60-70mbar, the temperature to be 90-95 ℃, the speed to be 500 plus materials to be 600 rpm, and the mixing time to be 3-4 minutes;

step four: adding the mixture C into a double-screw extruder, wherein the processing temperature of the double-screw extruder is as follows: the temperature of the first zone is 160 ℃, the temperature of the second zone is 190 ℃, the temperature of the third zone is 200 ℃, the temperature of the fourth zone is 215 ℃, the temperature of the fifth zone is 225 ℃, the temperature of the sixth zone is 240 ℃, the temperature of the seventh zone is 255 ℃, the temperature of the eighth zone is 260 ℃, the rotating speed of a main machine is 350 r/min, the master batch is obtained by extrusion, cooling, strip drawing, air drying and grain cutting, the master batch is put into an injection molding machine, and the master batch is injected into a die to obtain the insulating shell (100);

step five: two mica protective sheets (500) to be cut are placed on a cutting disc (2) of a mica protective sheet cutting device and are respectively arranged at two ends of a fixing plate (21), a lifting cylinder (9) is started, the lifting cylinder (9) pushes a turnover cylinder (10) downwards, the turnover cylinder (10) drives a mounting shell (11) to descend, the mounting shell (11) drives two cutter holders (16) to descend, a driving motor (18) is started, an output shaft of the driving motor (18) drives a third lead screw (17) to rotate, the third lead screw (17) drives the cutting disc (2) to slide along a guide rail (19), a cutting blade on the cutter holders (16) cuts the mica protective sheets (500) in the X-axis direction, then the lifting cylinder (9) drives the mounting shell (11) to ascend, the cutting disc (2) returns to the initial position, a first adjusting motor (5) is started, an output shaft of the first adjusting motor (5) drives a first lead screw (6) to rotate, the first lead screw (6) drives the two side moving frames (8) to move in opposite directions, then the two mounting shells (11) move in opposite directions, the previous steps are repeated, the cutting blade cuts the mica protecting sheet (500) at other positions in the X-axis direction, then the turning cylinder (10) is started, the turning cylinder (10) drives the mounting shells (11) to rotate 90 degrees, the first adjusting motor (5) is started, the cutting blade cuts the mica protecting sheet (500) in the Y-axis direction, then the second adjusting motor (13) is started, the second adjusting motor (13) is matched with the second lead screw (14) to adjust the distance between the two tool apron (16), the previous steps are repeated, the cutting blade cuts the mica protecting sheet (500) at other positions in the Y-axis direction, then the second adjusting motor (13) is started, the output shaft of the second adjusting motor (13) drives the second lead screw (14) to rotate, the second lead screw (14) drives the two tool apron (16) to move in opposite directions, the lifting cylinder (9) drives the mounting shell (11) to descend, the driving motor (18) drives the cutting disc (2) to move, the piston rod of the material taking cylinder (24) pushes the connecting strip (25) downwards, the negative pressure sucking disc (26) on the connecting strip (25) adsorbs the cut mica protective sheet (500), the piston rod of the transposition cylinder (23) pushes the material taking cylinder (24), then the connecting strip (25) pushes out the cut mica protective sheet (500), the two cut mica protective sheets (500) are taken down, the two mica protective sheets (500) are arranged on the upper side and the lower side of the mica sheet (600), the first metal foil (300) and the second metal foil (400) are arranged on the two sides of the mica sheet (600), the first metal foil (300) and the second metal foil (400) are put into the insulating shell (100), a heat sink (800) and a lead (200) are attached to an insulating case (100) and assembled to obtain a highly insulating mica capacitor.

2. A preparation method of a high-insulation mica capacitor is characterized by comprising the following steps:

the method comprises the following steps: weighing 50-80 parts of ABS, 5-10 parts of glass fiber, 20-50 parts of amino resin, 20-30 parts of rubber resin, 8-15 parts of silicon dioxide, 5-8 parts of silicon carbide whisker, 3-5 parts of hexamethylenetetramine, 5-8 parts of dicumyl peroxide, 15-20 parts of polystyrene resin, 10-20 parts of polyvinyl chloride micropowder, 8-14 parts of polyvinylidene fluoride micropowder, 10-20 parts of SBS thermoplastic elastomer, 4-6 parts of magnesium oxide, 3-8 parts of aluminum oxide, 7-11 parts of polycaprolactone micropowder, 5-8 parts of tributyl citrate, 5-8 parts of stearic acid, 6-12 parts of polyethylene wax, 5-8 parts of naphthenic oil, 3-5 parts of beryllium oxide, 5-8 parts of maleic anhydride grafted polyethylene, 10-12 parts of flame retardant, 3-5 parts of coupling agent, 5-8 parts of toughening agent, 3-5 parts of anti-aging agent and 5-8 parts of filler, drying ABS at 90 ℃ for 4 hours, then pouring the ABS into an internal mixer, then adding glass fiber, amino resin, rubber resin, silicon dioxide, silicon carbide whisker, hexamethylenetetramine, dicumyl peroxide, polystyrene resin, polyvinyl chloride micropowder, polyvinylidene fluoride micropowder, flame retardant, coupling agent, toughening agent, anti-aging agent and filler, and carrying out internal mixing at the temperature of 130-;

step two: adding magnesium oxide, aluminum oxide, beryllium oxide and SBS thermoplastic elastomer into an ultrasonic dispersion machine for dispersion, wherein the ultrasonic power is 150-180W, the dispersion time is 30-45 minutes, the dispersion temperature is 80-120 ℃, then adding polycaprolactone micro powder, tributyl citrate, stearic acid, polyethylene wax, naphthenic oil and maleic anhydride grafted polyethylene, adjusting the ultrasonic power to 200-240W, the dispersion time is 20-30 minutes, and the dispersion temperature is 150-180 ℃ to obtain a mixture B;

step three: pouring the mixture A and the mixture B into a high-pressure stirring kettle, mixing and stirring for 20-30 minutes to obtain a mixture C, wherein the mixing and stirring are completed in 5 stages: stage 1: the pressure of the high-pressure stirring kettle is set to be 150-; stage 2: the pressure of the high-pressure stirring kettle is set to be 140mbar in 130-; stage 3: the pressure of the high-pressure stirring kettle is set to be 110-; and 4, stage: setting the pressure of the high-pressure stirring kettle to be 85-100mbar, the temperature to be 110-; stage 5: setting the pressure of the high-pressure stirring kettle to be 60-70mbar, the temperature to be 90-95 ℃, the speed to be 500 plus materials to be 600 rpm, and the mixing time to be 3-4 minutes;

step four: adding the mixture C into a double-screw extruder, wherein the processing temperature of the double-screw extruder is as follows: the temperature of the first zone is 160 ℃, the temperature of the second zone is 190 ℃, the temperature of the third zone is 200 ℃, the temperature of the fourth zone is 215 ℃, the temperature of the fifth zone is 225 ℃, the temperature of the sixth zone is 240 ℃, the temperature of the seventh zone is 255 ℃, the temperature of the eighth zone is 260 ℃, the rotating speed of a main machine is 350 r/min, the master batch is obtained by extrusion, cooling, strip drawing, air drying and grain cutting, the master batch is put into an injection molding machine, and the master batch is injected into a die to obtain the insulating shell (100);

step five: two mica protective sheets (500) to be cut are placed on a cutting disc (2) of a mica protective sheet cutting device and are respectively arranged at two ends of a fixing plate (21), a lifting cylinder (9) is started, the lifting cylinder (9) pushes a turnover cylinder (10) downwards, the turnover cylinder (10) drives a mounting shell (11) to descend, the mounting shell (11) drives two cutter holders (16) to descend, a driving motor (18) is started, an output shaft of the driving motor (18) drives a third lead screw (17) to rotate, the third lead screw (17) drives the cutting disc (2) to slide along a guide rail (19), a cutting blade on the cutter holders (16) cuts the mica protective sheets (500) in the X-axis direction, then the lifting cylinder (9) drives the mounting shell (11) to ascend, the cutting disc (2) returns to the initial position, a first adjusting motor (5) is started, an output shaft of the first adjusting motor (5) drives a first lead screw (6) to rotate, the first lead screw (6) drives the two side moving frames (8) to move in opposite directions, then the two mounting shells (11) move in opposite directions, the previous steps are repeated, the cutting blade cuts the mica protecting sheet (500) at other positions in the X-axis direction, then the turning cylinder (10) is started, the turning cylinder (10) drives the mounting shells (11) to rotate 90 degrees, the first adjusting motor (5) is started, the cutting blade cuts the mica protecting sheet (500) in the Y-axis direction, then the second adjusting motor (13) is started, the second adjusting motor (13) is matched with the second lead screw (14) to adjust the distance between the two tool apron (16), the previous steps are repeated, the cutting blade cuts the mica protecting sheet (500) at other positions in the Y-axis direction, then the second adjusting motor (13) is started, the output shaft of the second adjusting motor (13) drives the second lead screw (14) to rotate, the second lead screw (14) drives the two tool apron (16) to move in opposite directions, the lifting cylinder (9) drives the mounting shell (11) to descend, the driving motor (18) drives the cutting disc (2) to move, the piston rod of the material taking cylinder (24) pushes the connecting strip (25) downwards, the negative pressure sucking disc (26) on the connecting strip (25) adsorbs the cut mica protective sheet (500), the piston rod of the transposition cylinder (23) pushes the material taking cylinder (24), then the connecting strip (25) pushes out the cut mica protective sheet (500), the two cut mica protective sheets (500) are taken down, the two mica protective sheets (500) are arranged on the upper side and the lower side of the mica sheet (600), the first metal foil (300) and the second metal foil (400) are arranged on the two sides of the mica sheet (600), the first metal foil (300) and the second metal foil (400) are put into the insulating shell (100), a heat sink (800) and a lead (200) are attached to an insulating case (100) and assembled to obtain a highly insulating mica capacitor.

3. The preparation method of the high-insulation mica capacitor according to claim 2, wherein the mica protection piece cutting device comprises a supporting table (1), a cutting disc (2) is arranged on the supporting table (1), a cutting frame (3) is arranged on the supporting table (1), a guide shell (4) is arranged on the cutting frame (3), two side moving frames (8) are arranged on the guide shell (4), a lifting cylinder (9) is arranged on the side moving frames (8), the end part of a piston rod of the lifting cylinder (9) is connected with a turnover cylinder (10), an installation shell (11) is arranged at the output end of the turnover cylinder (10), a plurality of cutting grooves (20) are formed in the cutting disc (2), a fixing plate (21) is arranged on the cutting disc (2), a transposition frame (22) is arranged on the supporting table (1), a transposition cylinder (23) is arranged on the transposition frame (22), the material taking cylinder (24) is installed at the end part of the piston rod of the transposition cylinder (23), the connecting strip (25) is installed at the end part of the piston rod of the material taking cylinder (24), and the connecting strip (25) is provided with a plurality of negative pressure suckers (26).

4. The method for preparing the mica capacitor with high insulation according to claim 3, wherein a first lead screw (6) is arranged in the guide shell (4), a first adjusting motor (5) is arranged on the outer side wall of the guide shell (4), the first lead screw (6) is arranged at the end part of the output shaft of the first adjusting motor (5), the thread surfaces at two ends of the first lead screw (6) are symmetrically distributed along the middle part, two first connecting sleeves (7) are in threaded connection with two ends of the first lead screw (6), the two first connecting sleeves (7) correspond to two side shifting frames (8) one by one, the first connecting sleeves (7) are fixedly connected with the side shifting frames (8), and the side shifting frames (8) are connected with the guide shell (4) in a sliding manner.

5. The method for preparing the mica capacitor with high insulation according to claim 3, wherein two guide rods (12) are installed on the top of the overturning cylinder (10), and the guide rods (12) are connected with the side moving frame (8) in a sliding mode.

6. The preparation method of the high-insulation mica capacitor as claimed in claim 3, wherein a second lead screw (14) is arranged in the installation shell (11), a second adjusting motor (13) is installed on the outer side wall of the installation shell (11), the second lead screw (14) is installed at the end part of an output shaft of the second adjusting motor (13), the thread surfaces at two ends of the second lead screw (14) are symmetrically distributed along the middle part, two second connecting sleeves (15) are connected to two ends of the second lead screw (14) in a threaded manner, the two second connecting sleeves (15) correspond to two tool holders (16) one by one, the second connecting sleeves (15) are fixedly connected with the tool holders (16), the tool holders (16) are provided with cutting blades, and the tool holders (16) are slidably connected with the installation shell (11).

7. The method for preparing the mica capacitor with high insulation according to claim 3, wherein a third lead screw (17) is arranged on the supporting table (1), the third lead screw (17) is connected with the cutting disc (2) in a threaded manner, a driving motor (18) is arranged on the supporting table (1), the third lead screw (17) is arranged at the end part of an output shaft of the driving motor (18), two guide rails (19) are arranged on two sides of the third lead screw (17), the guide rails (19) are arranged on the top of the supporting table (1), a sliding block is arranged at the bottom of the cutting disc (2), and the cutting disc (2) is connected with the guide rails (19) in a sliding manner through the sliding block.

8. The method for manufacturing a mica capacitor with high insulation according to claim 3, wherein the fixing plate (21) is installed at a middle position of the upper surface of the cutting plate (2).

Technical Field

The invention relates to the technical field of mica capacitor design, in particular to a high-insulativity mica capacitor and a preparation method thereof.

Background

Mica capacitors refer to capacitors having natural mica as the medium between the capacitors. The shape of the cable is mostly square block shape, and the pressure resistance and high performance are quite good. However, mica capacitors cannot be made too large due to the influence of the dielectric material, and are relatively expensive compared to other capacitors.

The insulating and radiating effect of current mica capacitor is not good, and simultaneously at the in-process of production, the production efficiency of mica bluff piece is not high among the mica capacitor, need evenly cut into a plurality of mica bluff pieces with a whole mica bluff piece, and the people is usually for cutting, and artificial cutting efficiency is not high, can influence the production efficiency of mica capacitor greatly.

Disclosure of Invention

The invention aims to provide a high-insulation mica capacitor and a preparation method thereof, and the high-insulation mica capacitor and the preparation method thereof solve the following technical problems: by adopting a reasonable formula and proportion, all the components supplement each other and have synergistic effect, the prepared high-insulation mica capacitor shell has high strength, good insulation and flame retardance and strong aging resistance, and meanwhile, the high-insulation mica capacitor has good heat dissipation effect through the installation of the heat dissipation fins and the arrangement of the heat dissipation holes on the heat dissipation fins; through the interval adjustment of blade holder, position control and angle modulation can accomplish the cutting to the mica bluff piece by the efficient for the cutting efficiency of mica bluff piece is higher.

The purpose of the invention can be realized by the following technical scheme:

a high-insulation mica capacitor comprises an insulating shell, wherein a first metal foil and a second metal foil are arranged in the insulating shell, the first metal foil and the second metal foil are respectively arranged on two sides of an inner cavity of the insulating shell, two mica protection sheets are arranged between the first metal foil and the second metal foil, a mica sheet is arranged between the two mica protection sheets, two leads are arranged on the insulating shell, a plurality of radiating fins are arranged on the insulating shell, the radiating fins are arranged on the same side of the insulating shell at equal intervals, and radiating holes are formed in the radiating fins;

the high-insulation mica capacitor is prepared by the following steps:

the method comprises the following steps: weighing 50-80 parts of ABS, 5-10 parts of glass fiber, 20-50 parts of amino resin, 20-30 parts of rubber resin, 8-15 parts of silicon dioxide, 5-8 parts of silicon carbide whisker, 3-5 parts of hexamethylenetetramine, 5-8 parts of dicumyl peroxide, 15-20 parts of polystyrene resin, 10-20 parts of polyvinyl chloride micropowder, 8-14 parts of polyvinylidene fluoride micropowder, 10-20 parts of SBS thermoplastic elastomer, 4-6 parts of magnesium oxide, 3-8 parts of aluminum oxide, 7-11 parts of polycaprolactone micropowder, 5-8 parts of tributyl citrate, 5-8 parts of stearic acid, 6-12 parts of polyethylene wax, 5-8 parts of naphthenic oil, 3-5 parts of beryllium oxide, 5-8 parts of maleic anhydride grafted polyethylene, 10-12 parts of flame retardant, 3-5 parts of coupling agent, 5-8 parts of toughening agent, 3-5 parts of anti-aging agent and 5-8 parts of filler, drying ABS at 90 ℃ for 4 hours, then pouring the ABS into an internal mixer, then adding glass fiber, amino resin, rubber resin, silicon dioxide, silicon carbide whisker, hexamethylenetetramine, dicumyl peroxide, polystyrene resin, polyvinyl chloride micropowder, polyvinylidene fluoride micropowder, flame retardant, coupling agent, toughening agent, anti-aging agent and filler, and carrying out internal mixing at the temperature of 130-;

step two: adding magnesium oxide, aluminum oxide, beryllium oxide and SBS thermoplastic elastomer into an ultrasonic dispersion machine for dispersion, wherein the ultrasonic power is 150-180W, the dispersion time is 30-45 minutes, the dispersion temperature is 80-120 ℃, then adding polycaprolactone micro powder, tributyl citrate, stearic acid, polyethylene wax, naphthenic oil and maleic anhydride grafted polyethylene, adjusting the ultrasonic power to 200-240W, the dispersion time is 20-30 minutes, and the dispersion temperature is 150-180 ℃ to obtain a mixture B;

step three: pouring the mixture A and the mixture B into a high-pressure stirring kettle, mixing and stirring for 20-30 minutes to obtain a mixture C, wherein the mixing and stirring are completed in 5 stages: stage 1: the pressure of the high-pressure stirring kettle is set to be 150-; stage 2: the pressure of the high-pressure stirring kettle is set to be 140mbar in 130-; stage 3: the pressure of the high-pressure stirring kettle is set to be 110-; and 4, stage: setting the pressure of the high-pressure stirring kettle to be 85-100mbar, the temperature to be 110-; stage 5: setting the pressure of the high-pressure stirring kettle to be 60-70mbar, the temperature to be 90-95 ℃, the speed to be 500 plus materials to be 600 rpm, and the mixing time to be 3-4 minutes;

step four: adding the mixture C into a double-screw extruder, wherein the processing temperature of the double-screw extruder is as follows: the temperature of a first zone is 160 ℃, the temperature of a second zone is 190 ℃, the temperature of a third zone is 200 ℃, the temperature of a fourth zone is 215 ℃, the temperature of a fifth zone is 225 ℃, the temperature of a sixth zone is 240 ℃, the temperature of a seventh zone is 255 ℃, the temperature of an eighth zone is 260 ℃, the rotating speed of a main machine is 350 rpm, the master batch is obtained by cooling, strip drawing, air drying and grain cutting after extrusion, the master batch is put into an injection molding machine, and the master batch is injected into a die to obtain an insulating shell;

step five: two mica protective sheets to be cut are placed on a cutting disc of a mica protective sheet cutting device and are respectively placed at two ends of a fixing plate, a lifting cylinder is started and pushes a turning cylinder downwards, the turning cylinder drives a mounting shell to descend, the mounting shell drives two tool holders to descend, a driving motor is started, an output shaft of the driving motor drives a third lead screw to rotate, the third lead screw drives the cutting disc to slide along a guide rail, a cutting blade on the tool holders cuts the mica protective sheets in the X-axis direction, then the lifting cylinder drives the mounting shell to ascend, the cutting disc returns to the initial position, a first adjusting motor is started, an output shaft of the first adjusting motor drives a first lead screw to rotate, the first lead screw drives two side moving frames to move oppositely, the two mounting shells move oppositely, the previous steps are repeated, the cutting blades finish cutting on the rest positions in the X-axis direction of the mica protective sheets, and then the turning cylinder is started, the mounting shell is driven to rotate by a turning cylinder by 90 degrees, a first adjusting motor is started, a cutting blade cuts the mica protection sheet in the Y-axis direction, then a second adjusting motor is started, the second adjusting motor is matched with a second lead screw to adjust the distance between two tool holders, the cutting blade finishes cutting the rest positions in the Y-axis direction by repeating the previous steps, then the second adjusting motor is started, an output shaft of the second adjusting motor drives a second lead screw to rotate, the second lead screw drives the two tool holders to move towards each other, a lifting cylinder drives the mounting shell to descend, a driving motor drives a cutting disc to move, the cutting blade cuts the mica protection sheet in the X-axis direction again, a material taking cylinder piston rod pushes a connecting bar downwards, a negative pressure sucking disc on the connecting bar adsorbs the cut mica protection sheets, a transposition cylinder piston rod pushes a material taking cylinder, the connecting bar pushes the cut mica protection sheets out, and the cut mica protection sheets are taken down, two mica protection sheets are arranged on the upper side and the lower side of a mica sheet, a first metal foil and a second metal foil are arranged on the two sides of the mica sheet, the first metal foil and the second metal foil are placed in an insulating shell, a radiating fin and a lead are arranged on the insulating shell, and the high-insulation mica capacitor is obtained through assembly.

Further, mica protection piece cutting equipment includes a supporting table, be provided with the cutting dish on the supporting table, install the cutting frame on the supporting table, the cutting shelf location has the guide shell, install two side on the guide shell and move the frame, the side is moved and is installed the lift cylinder on the frame, lift cylinder piston rod end connection upset cylinder, the installation shell is installed to upset cylinder output, a plurality of cutting grooves have been seted up to cutting dish four sides, install the fixed plate on the cutting dish, install the transposition frame on the supporting table, the transposition cylinder is installed on the transposition frame, transposition cylinder piston rod end portion installs and gets the material cylinder, it installs the connecting strip to get material cylinder piston rod end portion, install a plurality of negative pressure sucking discs on the connecting strip.

Further, be provided with first lead screw in the direction shell, first accommodate motor is installed to the direction shell lateral wall, first lead screw is installed in first accommodate motor output shaft tip, first lead screw both ends flank of thread is the symmetric distribution along the middle part, first lead screw both ends threaded connection has two first connecting sleeves, and two first connecting sleeves and two side shifts frame one-to-one, first connecting sleeve and side shift frame fixed connection, the side shifts a sliding connection direction shell.

Furthermore, two guide rods are installed at the top of the turnover cylinder, and the guide rods are connected with the side moving frame in a sliding mode.

Further, be provided with the second lead screw in the installation shell, second accommodate motor is installed to the installation shell lateral wall, the second lead screw is installed in second accommodate motor output shaft tip, second lead screw both ends flank of thread is the symmetric distribution along the middle part, second lead screw both ends threaded connection has two second adapter sleeves, two second adapter sleeves and two blade holders one-to-one, second adapter sleeve and blade holder fixed connection, install on the blade holder and cut the blade, blade holder sliding connection installation shell.

Further, be provided with the third lead screw on the brace table, third lead screw threaded connection cuts the dish, install driving motor on the brace table, the third lead screw is installed in driving motor output shaft tip, third lead screw both sides are provided with two guided ways, the guided way is installed in the brace table top, cut a set bottom and install the slider, it passes through slider sliding connection guided way to cut the dish.

Furthermore, the fixing plate is arranged in the middle of the upper surface of the cutting disc.

The invention has the beneficial effects that:

according to the high-insulation mica capacitor and the preparation method thereof, the reasonable formula and proportion are adopted, the components supplement each other and have synergistic effect, so that the prepared high-insulation mica capacitor shell has high strength, good insulation and flame retardance and strong aging resistance, and meanwhile, the high-insulation mica capacitor has good heat dissipation effect through the installation of the heat dissipation fins and the arrangement of the heat dissipation holes on the heat dissipation fins;

two mica protection sheets to be cut are placed on a cutting disc of a mica protection sheet cutting device and are respectively placed at two ends of a fixing plate, a lifting cylinder is started and pushes a turning cylinder downwards, the turning cylinder drives a mounting shell to descend, the mounting shell drives two tool holders to descend, a driving motor is started, an output shaft of the driving motor drives a third lead screw to rotate, the third lead screw drives the cutting disc to slide along a guide rail, a cutting blade on the tool holders cuts the mica protection sheets in the X-axis direction, then the lifting cylinder drives the mounting shell to ascend, the cutting disc returns to the initial position, a first adjusting motor is started, an output shaft of the first adjusting motor drives a first lead screw to rotate, the first lead screw drives two side moving frames to move oppositely, the two mounting shells move oppositely, the previous steps are repeated, the cutting blades finish cutting on other positions of the mica protection sheets in the X-axis direction, and then the turning cylinder is started, the upset cylinder drives the installation shell rotatory 90, open first accommodate motor, it cuts to mica bluff piece Y axle direction to cut the blade, then open second accommodate motor, the interval of two blade holders is adjusted to second accommodate motor cooperation second lead screw, repeat preceding step cut the blade and accomplish cutting to all the other positions of mica bluff piece Y axle direction, then open second accommodate motor, second accommodate motor output shaft drives the second lead screw and rotates, the second lead screw drives two blade holders and removes in opposite directions, the lift cylinder drives the installation shell and descends, driving motor drives the cutting dish and removes, it cuts once more to mica bluff piece X axle direction to cut the blade, through the above structure setting, can be through the interval adjustment of blade holder, position control and angle modulation can accomplish cutting to the mica bluff piece by the efficient, make the efficiency of cutting of mica bluff piece higher.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of a high insulation mica capacitor according to the present invention;

FIG. 2 is an internal structural view of the present invention;

FIG. 3 is a perspective view of the mica guard trim cutting tool of the present invention;

FIG. 4 is a view of the mounting of the cutting tray of the present invention;

FIG. 5 is an installation view of the tool holder of the present invention;

FIG. 6 is an internal structural view of a guide housing of the present invention;

FIG. 7 is an internal structural view of the mounting housing of the present invention;

fig. 8 is an installation view of the connecting strip of the present invention.

In the figure: 100. an insulating housing; 200. a lead wire; 300. a first metal foil; 400. a second metal foil; 500. mica protective sheets; 600. mica sheets; 800. a heat sink; 900. heat dissipation holes; 1. a support table; 2. cutting the disc; 3. a cutting frame; 4. a guide housing; 5. a first adjustment motor; 6. a first lead screw; 7. a first connecting sleeve; 8. laterally moving the frame; 9. a lifting cylinder; 10. turning over the air cylinder; 11. mounting a shell; 12. a guide bar; 13. a second adjustment motor; 14. a second lead screw; 15. a second connecting sleeve; 16. a tool apron; 17. a third lead screw; 18. a drive motor; 19. a guide rail; 20. cutting the groove; 21. a fixing plate; 22. a transposition frame; 23. a transposition air cylinder; 24. a material taking cylinder; 25. a connecting strip; 26. and a negative pressure sucker.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-8

Example 1

A high-insulativity mica capacitor comprises an insulating shell 100, wherein a first metal foil 300 and a second metal foil 400 are arranged in the insulating shell 100, the first metal foil 300 and the second metal foil 400 are respectively arranged at two sides of an inner cavity of the insulating shell 100, two mica protection sheets 500 are arranged between the first metal foil 300 and the second metal foil 400, a mica sheet 600 is arranged between the two mica protection sheets 500, two leads 200 are arranged on the insulating shell 100, a plurality of radiating fins 800 are arranged on the insulating shell 100, the radiating fins 800 are arranged at the same side of the insulating shell 100 at equal intervals, and radiating holes 900 are formed in the radiating fins 800;

the high-insulation mica capacitor is prepared by the following steps:

the method comprises the following steps: weighing 50 parts of ABS, 5 parts of glass fiber, 20 parts of amino resin, 20 parts of rubber resin, 8 parts of silicon dioxide, 5 parts of silicon carbide whisker, 3 parts of hexamethylenetetramine, 5 parts of dicumyl peroxide, 15 parts of polystyrene resin, 10 parts of polyvinyl chloride micropowder, 8 parts of polyvinylidene fluoride micropowder, 10 parts of SBS thermoplastic elastomer, 4 parts of magnesium oxide, 3 parts of aluminum oxide, 7 parts of polycaprolactone micropowder, 5 parts of tributyl citrate, 5 parts of stearic acid, 6 parts of polyethylene wax, 5 parts of naphthenic oil, 3 parts of beryllium oxide, 5 parts of maleic anhydride grafted polyethylene, 10 parts of flame retardant, 3 parts of coupling agent, 5 parts of toughening agent, 3 parts of anti-aging agent and 5 parts of filler, drying the ABS at 90 ℃ for 4 hours, pouring the dried ABS into an internal mixer, and then adding the glass fiber, the amino resin, the rubber resin, the silicon dioxide, the silicon carbide whisker, the hexamethylenetetramine, the styrene-butadiene-styrene copolymer, the styrene-butadiene-styrene copolymer and the, Carrying out banburying on diisopropylbenzene peroxide, polystyrene resin, polyvinyl chloride micro powder, polyvinylidene fluoride micro powder, a flame retardant, a coupling agent, a toughening agent, an anti-aging agent and a filler at the temperature of 130 ℃ at the speed of 650 rpm for 20 minutes to obtain a mixture A;

step two: adding magnesium oxide, aluminum oxide, beryllium oxide and SBS thermoplastic elastomer into an ultrasonic dispersion machine for dispersion, wherein the ultrasonic power is 150W, the dispersion time is 30 minutes, the dispersion temperature is 80 ℃, then adding polycaprolactone micro powder, tributyl citrate, stearic acid, polyethylene wax, naphthenic oil and maleic anhydride grafted polyethylene, adjusting the ultrasonic power to 200W, the dispersion time to 20 minutes, and the dispersion temperature to 150 ℃, so as to obtain a mixture B;

step three: pouring the mixture A and the mixture B into a high-pressure stirring kettle, mixing and stirring for 20 minutes to obtain a mixture C, wherein the mixing and stirring are completed in 5 stages: stage 1: setting the pressure of the high-pressure stirring kettle to be 150mbar, the temperature to be 150 ℃, the speed to be 1500 rpm, and the mixing time to be 7 minutes; stage 2: setting the pressure of a high-pressure stirring kettle to be 130mbar, the temperature to be 140 ℃, the speed to be 1300 r/m and the mixing time to be 6 minutes; stage 3: setting the pressure of the high-pressure stirring kettle to be 110mbar, the temperature to be 125 ℃, the speed to be 1100 r/m and the mixing time to be 5 minutes; and 4, stage: setting the pressure of the high-pressure stirring kettle to be 85mbar, the temperature to be 110 ℃, the speed to be 800 rpm, and the mixing time to be 4 minutes; stage 5: setting the pressure of the high-pressure stirring kettle to be 60mbar, the temperature to be 90 ℃, the speed to be 500 r/m and the mixing time to be 3 minutes;

step four: adding the mixture C into a double-screw extruder, wherein the processing temperature of the double-screw extruder is as follows: the temperature of the first zone is 160 ℃, the temperature of the second zone is 190 ℃, the temperature of the third zone is 200 ℃, the temperature of the fourth zone is 215 ℃, the temperature of the fifth zone is 225 ℃, the temperature of the sixth zone is 240 ℃, the temperature of the seventh zone is 255 ℃, the temperature of the eighth zone is 260 ℃, the rotating speed of a main machine is 350 rpm, the master batch is obtained by cooling, strip drawing, air drying and grain cutting after extrusion, the master batch is put into an injection molding machine, and the master batch is injected into a mold to obtain the insulating shell 100;

step five: two mica protective sheets 500 to be cut are placed on a cutting disc 2 of a mica protective sheet cutting device and are respectively placed at two ends of a fixing plate 21, a lifting cylinder 9 is started, the lifting cylinder 9 pushes a turning cylinder 10 downwards, the turning cylinder 10 drives a mounting shell 11 to descend, the mounting shell 11 drives two cutter holders 16 to descend, a driving motor 18 is started, an output shaft of the driving motor 18 drives a third lead screw 17 to rotate, the third lead screw 17 drives the cutting disc 2 to slide along a guide rail 19, a cutting blade on the cutter holders 16 cuts the mica protective sheets 500 in the X-axis direction, then the lifting cylinder 9 drives the mounting shell 11 to ascend, the cutting disc 2 returns to the initial position, a first adjusting motor 5 is started, an output shaft of the first adjusting motor 5 drives a first lead screw 6 to rotate, the first lead screw 6 drives two side moving frames 8 to move towards each other, the two mounting shells 11 move towards each other, and the previous steps are repeated, the cutting blades finish cutting of the other positions of the mica protective sheets 500 in the X, then the turning cylinder 10 is started, the turning cylinder 10 drives the mounting shell 11 to rotate 90 degrees, the first adjusting motor 5 is started, the cutting blade cuts the mica protection sheet 500Y-axis direction, then the second adjusting motor 13 is started, the second adjusting motor 13 is matched with the second lead screw 14 to adjust the distance between the two tool apron 16, the previous steps are repeated, the cutting blade finishes cutting the rest positions of the mica protection sheet 500Y-axis direction, then the second adjusting motor 13 is started, the output shaft of the second adjusting motor 13 drives the second lead screw 14 to rotate, the second lead screw 14 drives the two tool apron 16 to move oppositely, the lifting cylinder 9 drives the mounting shell 11 to descend, the driving motor 18 drives the cutting disc 2 to move, the cutting blade cuts the mica protection sheet 500X-axis direction again, the piston rod of the material taking cylinder 24 pushes the connecting bar 25 downwards, the negative pressure sucker 26 on the connecting bar 25 absorbs the cut mica protection sheet 500, the piston rod of the transposition cylinder 23 pushes the material taking cylinder 24, the connecting bar 25 pushes out the cut mica protection sheet 500, the two cut mica protection sheets 500 are taken down, the two mica protection sheets 500 are installed on the upper side and the lower side of the mica sheet 600, the first metal foil 300 and the second metal foil 400 are installed on the two sides of the mica sheet 600, the first metal foil 300 and the second metal foil 400 are placed in the insulating shell 100, the radiating fins 800 and the leads 200 are installed on the insulating shell 100, and the high-insulation mica capacitor is obtained through assembly.

Example 2

The method comprises the following steps: weighing 80 parts of ABS, 10 parts of glass fiber, 50 parts of amino resin, 30 parts of rubber resin, 15 parts of silicon dioxide, 8 parts of silicon carbide whisker, 5 parts of hexamethylenetetramine, 8 parts of dicumyl peroxide, 20 parts of polystyrene resin, 20 parts of polyvinyl chloride micropowder, 14 parts of polyvinylidene fluoride micropowder, 20 parts of SBS thermoplastic elastomer, 6 parts of magnesium oxide, 8 parts of aluminum oxide, 11 parts of polycaprolactone micropowder, 8 parts of tributyl citrate, 8 parts of stearic acid, 12 parts of polyethylene wax, 8 parts of naphthenic oil, 5 parts of beryllium oxide, 8 parts of maleic anhydride grafted polyethylene, 12 parts of flame retardant, 5 parts of coupling agent, 8 parts of toughening agent, 5 parts of anti-aging agent and 8 parts of filler, drying the ABS at 90 ℃ for 4 hours, pouring the dried ABS into an internal mixer, and then adding the glass fiber, the amino resin, the rubber resin, the silicon dioxide, the silicon carbide whisker, the hexamethylenetetramine, the styrene-butadiene-styrene copolymer, the styrene-butadiene-styrene copolymer and the, Carrying out banburying on diisopropylbenzene peroxide, polystyrene resin, polyvinyl chloride micro powder, polyvinylidene fluoride micro powder, a flame retardant, a coupling agent, a toughening agent, an anti-aging agent and a filler at the temperature of 180 ℃ at the speed of 700 revolutions per minute for 20 minutes to obtain a mixture A;

step two: adding magnesium oxide, aluminum oxide, beryllium oxide and SBS thermoplastic elastomer into an ultrasonic dispersion machine for dispersion, wherein the ultrasonic power is 180W, the dispersion time is 45 minutes, the dispersion temperature is 120 ℃, then adding polycaprolactone micro powder, tributyl citrate, stearic acid, polyethylene wax, naphthenic oil and maleic anhydride grafted polyethylene, adjusting the ultrasonic power to 240W, the dispersion time to 30 minutes, and the dispersion temperature to 180 ℃ to obtain a mixture B;

step three: pouring the mixture A and the mixture B into a high-pressure stirring kettle, mixing and stirring for 30 minutes to obtain a mixture C, wherein the mixing and stirring are completed in 5 stages: stage 1: setting the pressure of a high-pressure stirring kettle to be 160mbar, the temperature to be 160 ℃, the speed to be 1700 rpm, and the mixing time to be 7-10 minutes; stage 2: setting the pressure of the high-pressure stirring kettle to be 140mbar, the temperature to be 145 ℃, the speed to be 1400 rpm, and the mixing time to be 7 minutes; stage 3: setting the pressure of the high-pressure stirring kettle to be 120mbar, the temperature to be 130 ℃, the speed to be 1200 rpm, and the mixing time to be 6 minutes; and 4, stage: setting the pressure of the high-pressure stirring kettle to be 100mbar, the temperature to be 120 ℃, the speed to be 900 rpm, and the mixing time to be 5 minutes; stage 5: setting the pressure of the high-pressure stirring kettle to be 70mbar, the temperature to be 95 ℃, the speed to be 600 rpm, and the mixing time to be 4 minutes;

the fourth and fifth steps are the same as in example 1.

Mica protection piece cutting equipment includes brace table 1, be provided with cutting plate 2 on the brace table 1, install cutting frame 3 on the brace table 1, install direction shell 4 on the cutting frame 3, install two side on the direction shell 4 and move the frame 8, install lift cylinder 9 on the side moves the frame 8, lift cylinder 9 piston rod end connection upset cylinder 10, install installation shell 11 at the 10 output of upset cylinder, a plurality of cutting grooves 20 have been seted up to cutting plate 2 four sides, install fixed plate 21 on cutting plate 2, install transposition frame 22 on the brace table 1, install transposition cylinder 23 on the transposition frame 22, transposition cylinder 23 tailpiece of the piston rod portion installs and gets material cylinder 24, it installs connecting strip 25 to get material cylinder 24 piston rod end, install a plurality of negative pressure sucking discs 26 on the connecting strip 25.

Be provided with first lead screw 6 in the direction shell 4, first accommodate motor 5 is installed to 4 lateral walls of direction shell, first lead screw 6 is installed in 5 output shaft tip of first accommodate motor, 6 both ends screw thread faces of first lead screw are the symmetric distribution along the middle part, 6 both ends threaded connection of first lead screw has two first connecting sleeves 7, two first connecting sleeves 7 move frame 8 one-to-one with two sides, first connecting sleeve 7 moves frame 8 fixed connection with the side, 8 sliding connection direction shells 4 are moved to the side.

Two guide rods 12 are installed at the top of the overturning cylinder 10, and the guide rods 12 are connected with the side moving frame 8 in a sliding mode.

Be provided with second lead screw 14 in the installation shell 11, second adjusting motor 13 is installed to installation shell 11 lateral wall, second lead screw 14 is installed in second adjusting motor 13 output shaft tip, second lead screw 14 both ends screw thread is the symmetric distribution along the middle part, second lead screw 14 both ends threaded connection has two second adapter sleeves 15, two second adapter sleeves 15 and two blade holders 16 one-to-one, second adapter sleeve 15 and 16 fixed connection of blade holder, install the cutting blade on the blade holder 16, blade holder 16 sliding connection installation shell 11.

The third lead screw 17 is arranged on the supporting table 1, the third lead screw 17 is in threaded connection with the cutting disc 2, the driving motor 18 is installed on the supporting table 1, the third lead screw 17 is installed at the end of an output shaft of the driving motor 18, two guide rails 19 are arranged on two sides of the third lead screw 17, the guide rails 19 are installed at the top of the supporting table 1, a sliding block is installed at the bottom of the cutting disc 2, and the cutting disc 2 is in sliding connection with the guide rails 19 through the sliding block.

The fixing plate 21 is mounted on the cutting plate 2 at a middle position of the upper surface thereof.

The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.