Hydraulic compaction control device

Abstract

The utility model discloses a hydraulic compaction control device which comprises an upper hydraulic assembly which is supported on the ground and drives a compaction carrying disc to reciprocate in the vertical direction through a first hydraulic air cylinder, a cavity is formed downwards along the center of the top end face of the compaction carrying disc, and a plurality of cylindrical channels are transversely formed in the cavity in a penetrating mode. The plurality of cylindrical channels are arranged in parallel at the same height position; the sliding rod assembly comprises at least two sliding rods which are arranged outside the compaction carrying disc in the longitudinal direction, and the compaction carrying disc is arranged on the sliding rods in a sliding mode; the lower hydraulic assembly is connected to the upper portion of the upper hydraulic assembly through a sliding rod assembly, a second hydraulic air cylinder vertically drives the pressing disc to reciprocate, and the pressing disc is arranged in the cavity in a matched mode when pressed downwards. Through bidirectional cooperative pressurization, efficient heat dissipation and exhaust, a modularized adjustable structure and a high-precision guide design, the problems that a traditional compaction device is uneven in pressure, insufficient in heat dissipation and the like are effectively solved, and the compaction quality, efficiency and equipment reliability are remarkably improved.

Description

Technical Field

[0001] This utility model relates to hydraulic devices, and more particularly to a hydraulic compaction control device. Background Technology

[0002] Hydraulic compaction devices are widely used in material forming, powder metallurgy, and composite material processing. In existing technologies, traditional hydraulic compaction devices mostly employ a single-direction hydraulic drive structure, meaning that a single hydraulic cylinder applies pressure from above the device in one direction, forcibly pressing the material into the cavity. However, this unidirectional compaction method has significant drawbacks in practical applications:

[0003] First, this unilateral downward pressure can easily lead to uneven pressure distribution. Especially when dealing with high-viscosity or poorly fluid materials, it is difficult to evenly transmit the pressure to all areas of the material, resulting in large differences in internal density of the finished product. This can easily cause stress concentration and springback, affecting the dimensional accuracy and mechanical properties of the product.

[0004] Secondly, during the compaction process, the air inside the material cannot be effectively discharged. In addition, the lack of active heat dissipation design causes the temperature of the equipment and materials to rise sharply during continuous operation. This not only exacerbates the risk of material oxidation or thermal deformation, but may also cause the hydraulic system to become ineffective due to overheating, shortening the service life of key components.

[0005] Furthermore, traditional equipment often requires frequent mold changes or pressure head stroke adjustments to accommodate materials of varying thicknesses, resulting in cumbersome and inefficient operation. Although some improved designs attempt to enhance compaction uniformity by adding guide rods or optimizing mold structures, the aforementioned problems remain unresolved due to the unidirectional pressure application mode and the lack of a heat dissipation mechanism.

[0006] Therefore, there is an urgent need for a hydraulic compaction control device that can achieve bidirectional coordinated pressurization, has efficient heat dissipation and exhaust functions, and is highly adaptable, in order to overcome the shortcomings of existing technologies and improve compaction efficiency and finished product quality. Utility Model Content

[0007] To address the shortcomings of the aforementioned technologies, this utility model provides a hydraulic compaction control device.

[0008] To solve the above technical problems, the technical solution adopted by this utility model is: a hydraulic compaction control device, comprising:

[0009] The upper hydraulic assembly is supported on the ground and driven vertically by the No. 1 hydraulic cylinder to reciprocate the compaction plate. A cavity is opened downward along the center of the top surface of the compaction plate. Several cylindrical channels are arranged horizontally through the cavity. The several cylindrical channels are arranged in parallel at the same height.

[0010] The slide bar assembly includes at least two slide bars arranged longitudinally outside the compaction carrier plate, with the compaction carrier plate slidably mounted on the slide bars;

[0011] The lower hydraulic assembly is connected to the upper hydraulic assembly above it via a slide rod assembly. It drives the pressure plate to reciprocate vertically via a second hydraulic cylinder. When the pressure plate is pressed down, it is matched and set inside the cavity.

[0012] Furthermore, the compacted carrier plate includes a ventilation and heat dissipation plate, a raised plate, and a base plate, which are stacked sequentially from top to bottom. The cavity is opened downward along the ventilation and heat dissipation plate, the raised plate, and the base plate without penetrating the base plate.

[0013] Furthermore, the bottom end face of the No. 1 hydraulic cylinder of the lower hydraulic assembly is fixedly mounted on the ground by a horizontally arranged mounting plate, and the piston end of the No. 1 hydraulic cylinder is connected to the bottom end face of the base plate.

[0014] Furthermore, several cylindrical channels are horizontally opened on the ventilation and heat dissipation plate.

[0015] Furthermore, the base plate is circumferentially arranged with sliding blocks corresponding to the number of sliding rods and aligned with them, and the sliding blocks are slidably mounted on the sliding rods.

[0016] Furthermore, the slide bar is located between the lower flange support plate of the outer fixed assembly of hydraulic cylinder No. 1 and the upper flange support plate of the outer fixed assembly of hydraulic cylinder No. 2.

[0017] Furthermore, the upper flange support plate is fitted onto the slide rod through a perforation, and each slide rod has a nut threaded onto both sides of the upper flange support plate; the lower flange support plate is fixedly connected to the slide rod.

[0018] This utility model discloses a hydraulic compaction control device, which has the following advantages:

[0019] The bidirectional synergistic pressurization improves compaction uniformity. The upper hydraulic assembly drives the compaction platen to apply pressure from bottom to top, while the lower hydraulic assembly's pressure platen applies pressure synchronously from top to bottom, creating bidirectional synergistic pressure. This design effectively overcomes the uneven pressure distribution problem caused by traditional unidirectional compaction, significantly reduces internal density differences in materials, avoids stress concentration and springback, and ensures the dimensional accuracy and mechanical properties of the finished product.

[0020] Efficient heat dissipation and exhaust ensure process stability; the horizontally opened columnar channels of the ventilation and heat dissipation plate are connected to the cavity, which accelerates heat diffusion during the compaction process and prevents the material from oxidizing or deforming due to high temperature; at the same time, the channels serve as exhaust paths, which can promptly discharge residual gas inside the material, avoid bubble defects, and improve the density of the finished product.

[0021] The modular structure design offers strong adaptability; by increasing or decreasing the number of shims, the cavity depth can be flexibly adjusted to accommodate the compaction requirements of materials of different thicknesses, eliminating the need for frequent mold changes.

[0022] High motion precision extends equipment life; the sliding rod assembly and sliding base work together to constrain and compact the movement trajectory of the carrier plate, ensuring the straightness of vertical movement and reducing off-center load friction loss. Attached Figure Description

[0023] Figure 1 The three-dimensional representation of Example 1 Figure 1 .

[0024] Figure 2 This is a schematic diagram of the compaction carrier plate.

[0025] Figure 3 The three-dimensional representation of Example 1 Figure 2 .

[0026] Figure 4 This is the front view of Embodiment 1.

[0027] Figure 5 This is the front view of Embodiment 2.

[0028] In the diagram: 1. Hydraulic cylinder No. 1; 2. Compactor plate; 3. Cavity; 4. Columnar channel; 5. Mounting plate; 6. Slide rod; 7. Lower flange support plate; 8. Upper flange support plate; 9. Nut; 10. Hydraulic cylinder No. 2; 11. Pressure plate; 12. Slide seat; 21. Ventilation and heat dissipation plate; 22. Elevation plate; 23. Base plate. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] Example 1;

[0031] Figure 1-4 The hydraulic compaction control device shown includes an upper hydraulic assembly, a slide bar assembly, and a lower hydraulic assembly.

[0032] The upper hydraulic assembly is supported on the ground and drives the compaction plate 2 to reciprocate vertically via a hydraulic cylinder 1. A cavity 3 is formed downwards from the center of the top surface of the compaction plate 2. The cavity 3 accommodates the material to be compacted and restricts its lateral flow to form a specific shape. In this embodiment, the cavity 3 is cylindrical. In other embodiments, a polygonal cavity 3 can be provided according to material requirements. The aforementioned compaction plate 2 includes... Figure 2The ventilation and heat dissipation plate 21, the raised plate 22, and the base plate 23 shown are stacked sequentially from top to bottom. The outer contours of the ventilation and heat dissipation plate 21, the raised plate 22, and the base plate 23 are consistent, forming a single unit. Bolt holes are drilled through non-cavity areas (such as the corners or edges) to secure the ventilation and heat dissipation plate, the raised plate, and the base plate with high-strength bolts, forming a rigid unit. Compaction pressure is applied through reciprocating up and down movements. Specifically, the cavity 3 is formed downwards along the ventilation and heat dissipation plate 21, the raised plate 22, and the base plate 23 but does not penetrate the base plate 23. The base plate 23 directly contacts the material. The shim plate 22 serves to elevate the longitudinal space of the cavity 3. In some embodiments, multiple shims 22 can be used, or they can be omitted. Several cylindrical channels 4 are arranged horizontally through the cavity 3. The cylindrical channels 4 are arranged parallel to each other at the same height. The cylindrical channels 4 are opened horizontally on the ventilation and heat dissipation plate 21. The cylindrical channels 4 pass through the ventilation and heat dissipation plate 21 at the top of the cavity 3, providing heat dissipation and exhaust paths. The bottom end of the first hydraulic cylinder 1 is fixed to the ground by a horizontally arranged mounting plate 5. The piston end of the first hydraulic cylinder 1 is connected to the bottom end of the base plate 23.

[0033] The slide rod assembly includes four slide rods 6 arranged along the outside of the compaction carrier plate 2. The compaction carrier plate 2 is slidably mounted on the slide rods 6. Specifically, the base plate 23 is circumferentially arranged with slide seats 12 corresponding to the number of slide rods 6 and aligned with them. The slide seats are slidably mounted on the slide rods 6. The slide rods 6 constrain the movement trajectory of the compaction carrier plate 2 to ensure vertical compaction accuracy. In other embodiments, the number of slide rods 6 can be two in a symmetrical layout or three in an equilateral triangle layout. The slide rods 6 are located between the lower flange support plate 7 of the outer fixed set of the first hydraulic cylinder 1 and the upper flange support plate 8 of the outer fixed set of the second hydraulic cylinder 10. The slide rods 6 are fixed by the flange support plates to form a rigid frame. The upper flange support plate 8 is sleeved on the slide rods 6 through perforations. Each slide rod 6 has a nut 9 threaded on both sides of the upper flange support plate 8. The lower flange support plate 7 is fixedly connected to the slide rods 6. The upper flange support plate 8 is adjusted in height and level on slide rod 6 by nut 9. The modular design facilitates installation and adjustment, and the height is adjustable to adapt to different working conditions.

[0034] The lower hydraulic assembly is connected to the upper hydraulic assembly above it via a slide rod assembly. The second hydraulic cylinder 10 vertically drives the pressure plate 11 to reciprocate. When the pressure plate 11 presses down, it is positioned within the cavity 3. The pressure plate 11 presses down from the top of the cavity 3, creating bidirectional pressure with the upper hydraulic assembly. The coordinated operation of the upper and lower hydraulic systems enhances the uniformity of compaction.

[0035] In summary, this embodiment utilizes the cylindrical channel 4 for heat dissipation in the design of the compaction carrier 2, preventing material deformation or equipment damage caused by high temperatures. The transverse channel design increases the heat dissipation area while allowing gas to escape. The depth of the cavity 3 can be adjusted to accommodate different material thicknesses. The low-friction sliding mechanism of the sliding components reduces energy consumption and extends equipment life. The sliding gap is ensured by machining precision to guarantee linearity of movement. During operation, the pressure plate 11 is positioned above the cavity 3, and the compaction carrier 2 is in a high position. The first hydraulic cylinder 1 drives the compaction carrier 2 to press upwards. When the material contacts the pressure plate 11, it is pressed into the cavity 3. The cylindrical channel 4 discharges air and dissipates heat, preventing air bubbles inside the material. The second hydraulic cylinder 10 drives the pressure plate 11 to press downwards simultaneously, supplementing pressure from the top. This bidirectional pressure ensures uniform material density and reduces rebound. Afterwards, the hydraulic cylinder retracts, and the compaction carrier 2 and pressure plate 11 reset. The material is then manually removed to complete the cycle.

[0036] Example 2;

[0037] Figure 5 The hydraulic compaction control device shown includes an upper hydraulic assembly, a slide rod assembly, and a lower hydraulic assembly. Compared with embodiment one, this embodiment removes the second hydraulic cylinder 10.

[0038] The upper hydraulic assembly is supported on the ground and drives the compaction plate 2 to reciprocate vertically via the first hydraulic cylinder 1. A cavity 3 is formed downward from the center of the top surface of the compaction plate 2. The cavity 3 contains the material to be compacted and restricts its lateral flow to form a specific shape. The cavity 3 is formed downward along the ventilation and heat dissipation plate 21, the raised plate 22 and the bottom plate 23 but does not penetrate the bottom plate 23. Several cylindrical channels 4 are arranged horizontally through the cavity 3. The cylindrical channels 4 are arranged parallel at the same height. The cylindrical channels 4 are formed horizontally on the ventilation and heat dissipation plate 21. The cylindrical channels 4 penetrate the ventilation and heat dissipation plate 21 at the top of the cavity 3 to provide heat dissipation and exhaust paths. The bottom end of the first hydraulic cylinder 1 is fixed on the ground by a horizontally arranged mounting plate 5. The piston end of the first hydraulic cylinder 1 is connected to the bottom end of the bottom plate 23.

[0039] The slide bar assembly includes four slide bars 6 positioned outside the compaction carrier plate 2. The compaction carrier plate 2 is slidably mounted on the slide bars 6. Specifically, the base plate 23 has slide seats 12 arranged circumferentially, corresponding to the number of slide bars 6 and aligned with them. The slide seats are slidably mounted on the slide bars 6. The slide bars 6 constrain the movement trajectory of the compaction carrier plate 2, ensuring vertical compaction accuracy. The slide bars 6 are located between the lower flange support plate 7 and the upper flange support plate 8 of the outer fixed assembly of the first hydraulic cylinder 1. The slide bars 6 are fixed by the flange support plates, forming a rigid frame. The upper flange support plate 8 is fitted onto the slide bars 6 through perforations. Each slide bar 6 has a nut 9 threadedly fitted on both sides of the upper flange support plate 8. The lower flange support plate 7 is fixedly connected to the slide bars 6. The lower hydraulic assembly is connected above the upper hydraulic assembly through the slide bar assembly. The lower hydraulic assembly includes a pressure plate 11, which is matched and mounted within the cavity 3.

[0040] In summary, this embodiment utilizes the cylindrical channel 4 for heat dissipation in the design of the compaction carrier 2, preventing material deformation or equipment damage caused by high temperatures. The transverse channel design increases the heat dissipation area while allowing gas to escape. The depth of the cavity 3 can be adjusted to accommodate different material thicknesses. The low-friction sliding mechanism reduces energy consumption and extends equipment lifespan. The sliding gap is ensured by machining precision to guarantee linearity of movement. During operation, the pressure plate 11 is positioned above the cavity 3, and the compaction carrier 2 is in a high position. The first hydraulic cylinder 1 drives the compaction carrier 2 to press upwards. When the material contacts the pressure plate 11, it is pressed into the cavity 3. The cylindrical channel 4 discharges air and dissipates heat, preventing air bubbles inside the material. The hydraulic cylinder then retracts, the compaction carrier 2 resets, and the material is manually removed to complete the cycle.

[0041] This embodiment eliminates the second hydraulic cylinder 10, reducing manufacturing costs and maintenance complexity. Meanwhile, the slide rod assembly still ensures vertical movement accuracy. This embodiment is suitable for pre-pressing low-density materials, such as the initial molding of ceramic powder and soft plastic granules, as well as simple-shaped products requiring bidirectional pressure (such as gaskets and sealing rings).

[0042] The above embodiments are not intended to limit the present invention. Unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The present invention is not limited to the examples above. Changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the technical solution of the present invention are also within the protection scope of the present invention. Furthermore, the technical features involved in the different embodiments of the present application described above can be combined with each other as long as they do not conflict with each other.

Claims

1. A hydraulic compaction control device, characterized in that, include: The upper hydraulic assembly is supported on the ground and driven vertically by the No. 1 hydraulic cylinder to reciprocate the compaction plate. A cavity is opened downward along the center of the top surface of the compaction plate. Several cylindrical channels are arranged horizontally through the cavity. The several cylindrical channels are arranged in parallel at the same height. A slide bar assembly includes at least two slide bars arranged longitudinally outside a compaction carrier plate, the compaction carrier plate being slidably disposed on the slide bars; The lower hydraulic assembly is connected to the upper hydraulic assembly above it via a slide rod assembly. It drives the pressure plate to reciprocate vertically via a second hydraulic cylinder. When the pressure plate is pressed down, it is matched and set inside the cavity.

2. The hydraulic compaction control device according to claim 1, characterized in that: The compacted carrier plate includes a ventilation and heat dissipation plate, a raised plate, and a base plate. The ventilation and heat dissipation plate, the raised plate, and the base plate are stacked sequentially from top to bottom. The cavity is opened downward along the ventilation and heat dissipation plate, the raised plate, and the base plate but does not penetrate the base plate.

3. The hydraulic compaction control device according to claim 2, characterized in that: The bottom end face of the No. 1 hydraulic cylinder of the lower hydraulic assembly is fixed on the ground by a horizontally arranged mounting plate, and the piston end of the No. 1 hydraulic cylinder is connected to the bottom end face of the base plate.

4. The hydraulic compaction control device according to claim 2, characterized in that: The aforementioned cylindrical channels are horizontally opened on the ventilation and heat dissipation plate.

5. The hydraulic compaction control device according to claim 2, characterized in that: The base plate is circumferentially arranged with sliding blocks corresponding to the number of sliding rods and aligned with them. The sliding blocks are slidably mounted on the sliding rods.

6. The hydraulic compaction control device according to claim 2, characterized in that: The slide bar is located between the lower flange support plate of the outer fixed assembly of hydraulic cylinder No. 1 and the upper flange support plate of the outer fixed assembly of hydraulic cylinder No.

2.

7. The hydraulic compaction control device according to claim 6, characterized in that: The upper flange support plate is fitted onto the slide rod through a perforation, and each slide rod has a nut threaded onto both sides of the upper flange support plate; the lower flange support plate is fixedly connected to the slide rod.

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