HTCC multilayer structure material belt thickness correction forming device

Abstract

The utility model belongs to the field of electronic manufacturing equipment especially a kind of HTCC multilayer structure material belt thickness correction forming device, it includes conveying table, the top fixed mounting of conveying table has conveying belt, the top of conveying table is equipped with two correction chambers, the inside of two correction chambers is equipped with correction mechanism. The utility model can utilize cylinder, rack and linkage gear etc. Synergic action, ensure upper and lower compression roller displacement matching, make material belt stress uniform, prevent pressure concentration in single side, avoid the indentation caused by single side pressure too large, reduce the relative sliding of material belt and compression roller simultaneously, reduce the risk of surface scratch, protect the insulation layer and conductor layer structure of HTCC material belt, guarantee its surface quality, and can avoid the temperature of material belt subsequent and heated compression roller contact temperature rise, to effectively prevent the generation of organic phase uneven volatilization and surface bubble, improve the processing quality of material belt.

Description

Technical Field

[0001] This utility model relates to the field of electronic manufacturing equipment technology, and in particular to an HTCC multilayer structure strip thickness correction forming device. Background Technology

[0002] The HTCC (High Temperature Co-fired Ceramic) multilayer structure strip thickness correction forming device is a specialized piece of equipment adapted to the HTCC multilayer ceramic substrate manufacturing process. Its core function is to precisely control the thickness uniformity of the multilayer laminated strips. By integrating modules for feeding, pressing correction, thickness detection, and parameter feedback adjustment, it addresses issues such as localized thickness deviations and uneven interlayer bonding that easily occur after multilayer HTCC green ceramic strip lamination. Using preset process parameters (such as pressure, temperature, and pressing rate) as a benchmark, it monitors the strip thickness data in real time and dynamically adjusts the pressing mechanism to ensure that the strip thickness after forming meets the precision requirements of subsequent HTCC sintering and circuit fabrication, providing a preliminary guarantee for the electrical performance and structural stability of the multilayer ceramic substrate.

[0003] However, the adjustment structure of existing equipment is mostly single-sided adjustment. Single-sided adjustment will concentrate the pressure of the pressure roller on the material strip on one side (for example, if the upper pressure roller is adjusted too low, the pressure will be concentrated on the upper surface). If there are small impurities or wear on the surface of the pressure roller, obvious indentations will be formed on one side of the material strip. At the same time, uneven force will cause relative sliding between the material strip and the pressure roller, resulting in surface scratches and damage to the insulation or conductor layer structure of HTCC. Furthermore, when the existing equipment heats and presses the material strip, the material strip is often in direct contact with the heated pressure roller. The temperature rises sharply, which can easily lead to uneven volatilization of the organic phase of the material strip and the formation of surface bubbles.

[0004] Therefore, we propose an HTCC multilayer structure strip thickness correction forming device to solve the above problems. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-layer structure HTCC strip thickness correction forming device includes a conveyor table, a conveyor belt fixedly installed on the top of the conveyor table, two correction chambers opened on the top of the conveyor table, and correction mechanisms provided on the inner side of each correction chamber; a preheating chamber fixedly installed on the top of the conveyor table, and two adjustment ports opened on the top of the conveyor belt, the size of the adjustment ports being adapted to the pressure roller 22, and the two adjustment ports respectively corresponding to the corresponding correction chambers, ensuring that the pressure roller of the correction mechanism can pass smoothly and contact the strip without affecting the overall structural strength and conveying function of the conveyor belt, while the edges of the adjustment ports are rounded to prevent scratching the surface of the strip during conveying.

[0007] Specifically, a hot air blower is fixedly installed on one side of the conveyor table, and a hot air duct is fixedly installed on the output end of the hot air blower. The other end of the hot air duct is fixedly connected to the preheating chamber. The preheating chamber adopts a double-layer insulation structure design, with the inner layer made of high-temperature resistant stainless steel and the outer layer wrapped with high-efficiency insulation cotton, which can effectively reduce heat loss and reduce energy consumption. In addition, the interior of the preheating chamber is equipped with a hot air guiding structure, which can make the hot air evenly cover the surface of the material belt.

[0008] Specifically, the correction mechanism includes a cylinder, a lower adjusting base, two lower shafts, a lower rack, and an upper adjusting base. A cylinder is fixedly installed on the bottom inner wall of the correction chamber. The lower adjusting base is fixedly installed on the piston end of the cylinder. The lower adjusting base is slidably installed inside the correction chamber. A lower shaft is fixedly installed at the bottom of the lower adjusting base. Four identical lower guide blocks are fixedly installed on the front and rear inner walls of the correction chamber. The two lower shafts slide through the corresponding two lower guide blocks. Lower racks are fixedly sleeved on the outer sides of both lower shafts. An upper adjusting base is provided at the top of the lower adjusting base. Both the lower and upper adjusting bases are made of lightweight, high-strength alloy materials, which reduces the load on the cylinder while ensuring structural strength.

[0009] Specifically, four upper guide blocks are fixedly installed on the inner walls of the left and right sides of the correction chamber. Among the eight upper guide blocks, the tops of two upper guide blocks with the same longitudinal position slide through the same upper shaft. The four upper shafts are fixedly installed through the same upper adjustment base. Linkage metal blocks are fixedly sleeved on the outer sides of the four upper shafts. The same upper rack is fixedly installed on the side of two linkage metal blocks located on the same side that are close to each other.

[0010] Specifically, two identical linkage gears are fixedly installed on the inner walls of the front and rear sides of the correction chamber. The two lower racks and two upper racks mesh with the corresponding linkage gears, which can realize the synchronous reverse movement of the lower adjustment base and the upper adjustment base, thereby accurately controlling the distance between the two pressure rollers, meeting the correction requirements of material strips of different thicknesses, ensuring the synchronicity and accuracy of the upper and lower adjustments, and avoiding uneven force on the material strip due to asynchronous adjustment.

[0011] Specifically, two bearing seats are fixedly installed on the side of the lower and upper adjusting bases that are close to each other. The same detachable rotating shaft is fixedly installed on the inner side of the two bearing seats on the same base. Pressure rollers are fixedly sleeved on the outer side of the two rotating shafts. The pressure rollers are made of high temperature resistant and high hardness tungsten carbide material. Their surfaces are precisely polished and have a high degree of surface smoothness, which avoids scratches or indentations on the surface of the material strip during the pressing process. At the same time, the high wear resistance of tungsten carbide material can ensure that the pressure rollers can still maintain a relatively smooth surface after long-term use.

[0012] Specifically, multiple evenly distributed electric heating tubes are fixedly inserted through one side of each of the two pressure rollers. The electric heating tubes are made of high-quality stainless steel. The even distribution of multiple electric heating tubes can ensure that the overall temperature of the pressure rollers is uniform, and avoid uneven heating of the material strip due to local temperature differences in the pressure rollers.

[0013] Specifically, heat dissipation shells and counterweights are fixedly installed on the sides of the lower and upper adjustment bases that are close to each other. High-temperature resistant servo motors are fixedly installed on the inner sides of the two heat dissipation shells. The output shafts of the two high-temperature resistant servo motors are fixedly connected to the corresponding rotating shafts. The weight of the two counterweights is the same as the sum of the weight of the corresponding high-temperature resistant servo motors and heat dissipation shells. This avoids the base from tilting during lifting or movement due to excessive weight on one side, which would affect the uniformity and correction accuracy of the pressure roller pressing the material strip, and improve the service life and operational stability of the equipment.

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

[0015] (1) The HTCC multi-layer structure strip thickness correction forming device of this utility model can use the set correction mechanism to ensure the matching of the upper and lower pressure roller displacements by using the coordinated action of cylinder, rack and gear, so that the strip is subjected to uniform force, prevents pressure concentration on one side, avoids indentation caused by excessive pressure on one side, and at the same time reduces the relative sliding between the strip and the pressure roller, reduces the risk of surface scratches, protects the insulation layer and conductor layer structure of the HTCC strip, and ensures its surface quality.

[0016] (2) The HTCC multi-layer structure strip thickness correction forming device of this utility model generates hot air by setting a hot air blower to preheat the strip, avoids the temperature rise when the strip comes into contact with the heated pressure roller, thereby effectively preventing uneven volatilization of organic phase and generation of surface bubbles, and improving the processing quality of the strip. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an HTCC multi-layer structure strip thickness correction forming device proposed in this utility model;

[0018] Figure 2 This is a three-dimensional cross-sectional view of an HTCC multi-layer structure strip thickness correction forming device proposed in this utility model;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of the correction mechanism of the HTCC multi-layer structure strip thickness correction forming device proposed in this utility model;

[0020] Figure 4This is a three-dimensional structural disassembly diagram of the correction mechanism of the HTCC multi-layer structure strip thickness correction forming device proposed in this utility model.

[0021] Figure 5 This is a three-dimensional structural disassembly diagram of the bearing seat, heat dissipation shell, high-temperature resistant servo motor, counterweight, rotating shaft, pressure roller and electric heating tube of the HTCC multi-layer structure strip thickness correction forming device proposed in this utility model.

[0022] In the diagram: 1. Conveyor table; 2. Hot air blower; 3. Hot air duct; 4. Preheating chamber; 5. Conveyor belt; 6. Cylinder; 7. Lower adjusting base; 8. Lower shaft; 9. Lower guide block; 10. Lower rack; 11. Linkage gear; 12. Upper guide block; 13. Upper shaft; 14. Linkage metal block; 15. Upper rack; 16. Upper adjusting base; 17. Bearing seat; 18. Heat dissipation shell; 19. High-temperature resistant servo motor; 20. Counterweight; 21. Rotating shaft; 22. Pressure roller; 23. Electric heating tube. Detailed Implementation

[0023] Reference Figure 1-5 A multi-layer structure material strip thickness correction forming device for HTCC includes a conveyor table 1, a conveyor belt 5 fixedly installed on the top of the conveyor table 1, two correction chambers opened on the top of the conveyor table 1, and correction mechanisms provided on the inner side of the two correction chambers; a preheating chamber 4 fixedly installed on the top of the conveyor table 1, and two adjustment ports opened on the top of the conveyor belt 5. The size of the adjustment ports is adapted to the pressure roller 22, and the two adjustment ports correspond to the corresponding correction chambers. This ensures that the pressure roller 22 of the correction mechanism can pass through smoothly and contact the material strip, without affecting the overall structural strength and conveying function of the conveyor belt 5. At the same time, the edges of the adjustment ports are rounded to prevent scratching the surface of the material strip during the conveying process.

[0024] In this embodiment, a hot air blower 2 is fixedly installed on one side of the conveyor 1, and a hot air duct 3 is fixedly installed on the output end of the hot air blower 2. The other end of the hot air duct 3 is fixedly connected to the preheating chamber 4. The preheating chamber 4 adopts a double-layer insulation structure design. The inner layer is made of high-temperature resistant stainless steel, and the outer layer is wrapped with high-efficiency insulation cotton, which can effectively reduce heat loss and reduce energy consumption. In addition, the preheating chamber 4 is equipped with a hot air guiding structure inside, which can make the hot air evenly cover the surface of the material belt.

[0025] In this embodiment, the correction mechanism includes a cylinder 6, a lower adjusting base 7, two lower shafts 8, a lower rack 10, and an upper adjusting base 16. The cylinder 6 is fixedly installed on the bottom inner wall of the correction chamber. The lower adjusting base 7 is fixedly installed on the piston end of the cylinder 6. The lower adjusting base 7 is slidably installed on the inner side of the correction chamber. The lower shaft 8 is fixedly installed at the bottom of the lower adjusting base 7. Four identical lower guide blocks 9 are fixedly installed on the inner walls of the front and rear sides of the correction chamber. The two lower shafts 8 slide through the corresponding two lower guide blocks 9 respectively. The lower rack 10 is fixedly sleeved on the outer side of both lower shafts 8. The upper adjusting base 16 is provided on the top of the lower adjusting base 7. Both the lower adjusting base 7 and the upper adjusting base 16 are made of lightweight high-strength alloy material, which can reduce the load on the cylinder 6 while ensuring structural strength.

[0026] In this embodiment, four upper guide blocks 12 are fixedly installed on the inner walls of the left and right sides of the correction chamber. The tops of two upper guide blocks 12 with the same longitudinal position slide through the same upper shaft 13. The four upper shafts 13 are fixedly installed through the same upper adjustment base 16. Linkage metal blocks 14 are fixedly sleeved on the outer side of the four upper shafts 13. The same upper rack 15 is fixedly installed on the side of the two linkage metal blocks 14 located on the same side that are close to each other.

[0027] In this embodiment, two identical linkage gears 11 are fixedly installed on the inner walls of the front and rear sides of the correction chamber. The two lower racks 10 and the two upper racks 15 mesh with the corresponding linkage gears 11, which can realize the synchronous reverse movement of the lower adjustment base 7 and the upper adjustment base 16, thereby accurately controlling the distance between the two pressure rollers 22, meeting the correction requirements of material strips of different thicknesses, ensuring the synchronicity and accuracy of the upper and lower adjustments, and avoiding uneven force on the material strip due to asynchronous adjustment.

[0028] In this embodiment, two bearing seats 17 are fixedly installed on the side of the lower adjusting base 7 and the upper adjusting base 16 that are close to each other. The same detachable rotating shaft 21 is fixedly installed on the inner side of the two bearing seats 17 located on the same base. Pressure rollers 22 are fixedly sleeved on the outer side of the two rotating shafts 21. The pressure rollers 22 are made of high temperature resistant and high hardness tungsten carbide material. Their surface has been precisely polished and has a high surface smoothness, which avoids scratches or indentations on the surface of the material strip during the pressing process. At the same time, the high wear resistance of tungsten carbide material can ensure that the pressure rollers 22 can still maintain a relatively smooth surface after long-term use.

[0029] In this embodiment, multiple evenly distributed electric heating tubes 23 are fixedly inserted through one side of each of the two pressure rollers 22. The electric heating tubes 23 are made of high-quality stainless steel. The even distribution of multiple electric heating tubes 23 can ensure that the overall temperature of the pressure rollers 22 is uniform, and avoid uneven heating of the material strip due to local temperature differences in the pressure rollers 22.

[0030] In this embodiment, heat dissipation shells 18 and counterweights 20 are fixedly installed on the sides of the lower adjustment base 7 and the upper adjustment base 16 that are close to each other. High-temperature resistant servo motors 19 are fixedly installed on the inner sides of the two heat dissipation shells 18. The output shafts of the two high-temperature resistant servo motors 19 are fixedly connected to the corresponding rotating shafts 21. The weight of the two counterweights 20 is the same as the sum of the weight of the corresponding high-temperature resistant servo motors 19 and the heat dissipation shells 18. This avoids the base from tilting during lifting or movement due to excessive weight on one side, which would affect the uniformity and correction accuracy of the pressure roller 22 pressing the material strip, and improve the service life and operational stability of the equipment.

[0031] Working Principle: When processing HTCC multi-layer strip, to adjust its thickness, two cylinders 6 are first activated. The operator adjusts each cylinder 6 individually, resulting in different strokes for the right cylinder (longer than the left). The activation of cylinder 6 causes the lower adjusting base 7 to move upwards, which in turn moves the two lower shafts 8 upwards. The movement of the two lower shafts 8 then moves the corresponding lower racks 10 upwards, which in turn rotates the corresponding linkage gears 11. The rotation of the two linkage gears 11 then moves the corresponding upper racks 15 downwards. The downward movement of the two upper racks 15 moves the corresponding linkage metal blocks 14, and the movement of the four linkage metal blocks 14 in turn moves the corresponding upper shafts 13. The movement of the four upper shafts 13 drives the same upper adjusting base 16 to move. At this time, the upper adjusting base 16 and the lower adjusting base 7 move closer to each other, which in turn drives the two pressure rollers 22 to move closer to each other. The strokes of the two cylinders 6 are different, so the distance between the two pressure rollers 22 on the left is greater than the distance between the two pressure rollers 22 on the right, thus achieving a stepped thickness reduction. After the adjustment is completed, the operator starts the hot air blower 2 and multiple electric heating tubes 23. The hot air blower 2 generates hot air, which enters the preheating chamber 4 through the hot air pipe 3 to preheat the material belt. This prevents the material belt from experiencing a sudden temperature rise when it comes into contact with the pressure rollers 22 that have been heated by the electric heating tubes 23, which would cause uneven volatilization of the organic phase and the formation of surface bubbles. After passing through the preheating chamber, the material belt continues to move along the conveyor belt 5, passing through the two sets of pressure rollers 22 in sequence. Each time it passes through, the thickness of the material belt is further reduced until the required thickness is reached, thus completing the thickness correction.

[0032] The technological advancements of this invention compared to existing technologies are as follows: The coordinated action of the cylinder 6, rack, and linkage gear 11 ensures matching displacement of the upper and lower pressure rollers 22, resulting in uniform force on the strip and preventing pressure concentration on one side. This avoids indentations caused by excessive pressure on one side, reduces relative sliding between the strip and the pressure rollers 22, lowers the risk of surface scratches, protects the insulation and conductor layers of the HTCC strip, ensures its surface quality, and prevents a sudden temperature rise when the strip comes into contact with the heated pressure rollers 22. This effectively prevents uneven volatilization of the organic phase and the generation of surface bubbles, thus improving the processing quality of the strip.

Claims

1. A forming device for correcting the thickness of HTCC multilayer structure strip, characterized in that, Includes a conveyor platform (1), on the top of which a conveyor belt (5) is fixedly installed. Two correction chambers are opened on the top of the conveyor platform (1), and correction mechanisms are provided on the inner side of each of the two correction chambers. The top of the conveyor platform (1) is fixedly equipped with a preheating chamber (4), and the top of the conveyor belt (5) has two adjustment ports.

2. The HTCC multi-layer structure strip thickness correction forming device according to claim 1, characterized in that, A hot air blower (2) is fixedly installed on one side of the conveyor (1), and a hot air pipe (3) is fixedly installed on the output end of the hot air blower (2). The other end of the hot air pipe (3) is fixedly connected to the preheating chamber (4).

3. The HTCC multi-layer structure strip thickness correction forming device according to claim 1, characterized in that, The correction mechanism includes a cylinder (6), a lower adjusting base (7), two lower shafts (8), a lower rack (10), and an upper adjusting base (16). The cylinder (6) is fixedly installed on the bottom inner wall of the correction chamber. The lower adjusting base (7) is fixedly installed on the piston end of the cylinder (6). The lower adjusting base (7) is slidably installed on the inner side of the correction chamber. The lower shaft (8) is fixedly installed at the bottom of the lower adjusting base (7). Four identical lower guide blocks (9) are fixedly installed on the inner walls of the front and rear sides of the correction chamber. The two lower shafts (8) slide through the corresponding two lower guide blocks (9) respectively. The lower rack (10) is fixedly sleeved on the outer side of the two lower shafts (8). The upper adjusting base (16) is provided on the top of the lower adjusting base (7).

4. The HTCC multi-layer structure strip thickness correction forming device according to claim 3, characterized in that, Four upper guide blocks (12) are fixedly installed on the inner walls of the left and right sides of the correction chamber. The tops of two upper guide blocks (12) with the same longitudinal position slide through the same upper shaft (13). The four upper shafts (13) are fixedly installed through the same upper adjustment base (16). Linkage metal blocks (14) are fixedly sleeved on the outer side of the four upper shafts (13). The same upper rack (15) is fixedly installed on the side of the two linkage metal blocks (14) located on the same side that are close to each other.

5. The HTCC multi-layer structure strip thickness correction forming device according to claim 4, characterized in that, Two identical linkage gears (11) are fixedly installed on the inner walls of the front and rear sides of the correction chamber. The two lower racks (10) and the two upper racks (15) mesh with the corresponding linkage gears (11).

6. The HTCC multi-layer structure strip thickness correction forming device according to claim 5, characterized in that, Two bearing seats (17) are fixedly installed on the side of the lower adjustment base (7) and the upper adjustment base (16) that are close to each other. The same detachable rotating shaft (21) is fixedly installed on the inner side of the two bearing seats (17) on the same base. Pressure rollers (22) are fixedly sleeved on the outer side of the two rotating shafts (21).

7. The HTCC multi-layer structure strip thickness correction forming device according to claim 6, characterized in that, Multiple evenly distributed electric heating tubes (23) are fixedly inserted through one side of each of the two pressure rollers (22).

8. The HTCC multi-layer structure strip thickness correction forming device according to claim 7, characterized in that, The lower adjustment base (7) and the upper adjustment base (16) are each fixedly installed with a heat dissipation shell (18) and a counterweight (20) on the side close to each other. A high-temperature servo motor (19) is fixedly installed on the inner side of each of the two heat dissipation shells (18). The output shafts of the two high-temperature servo motors (19) are fixedly connected to the corresponding rotating shafts (21). The weight of the two counterweights (20) is the same as the weight of the corresponding high-temperature servo motor (19) and the heat dissipation shell (18) added together.

Images