SMC (Sheet Molding Compound) compacting machine

Abstract

The utility model discloses an SMC (Sheet Molding Compound) compacting machine which comprises a base, a compacting mechanism is arranged on the base, the compacting mechanism comprises a bottom die, a hydraulic cylinder, a connecting rod, a connecting frame, an air cylinder and a pressing die, a pressure relief mechanism is arranged on the air cylinder, and the pressure relief mechanism comprises an exhaust pipe, a connecting sleeve, a spiral plate, a mounting disc, a center rod and a sealing plate. The spiral plate is mounted on the inner wall of the connecting sleeve; the mounting disc is mounted at the top end of the spiral plate; the center rod is mounted in the mounting plate; the sealing plate is mounted at the bottom end of the center rod; the center rod drives the mounting sleeve, the limiting rod and other components to slide, finally, isolation between the sealing strip and the sealing groove is opened, an airflow channel is formed, air pressure generated in the compaction process can be smoothly exhausted through the air cylinder, and the mechanism can rapidly and effectively exhaust air in the bottom die in the compaction process.

Description

Technical Field

[0001] This utility model relates to the field of SMC sheet compaction technology, and more specifically, to an SMC sheet compaction machine. Background Technology

[0002] In the compaction process of SMC sheets, the control and release of air pressure is a critical step. Since the compaction of SMC sheets requires the application of high pressure, this often leads to excessively high gas pressure inside the air cylinder. If the air pressure is not effectively released, it will not only affect the compaction effect, but may also put too much burden on the equipment and even cause equipment failure. Therefore, how to effectively release the excessive air pressure in the air cylinder during the compaction process has become a necessary condition for improving equipment performance and extending service life. In the existing technology, the release of air pressure is often carried out in a relatively simplified way, lacking precise control of the pressure release process, resulting in insufficient or excessive venting, which affects the stability of the entire compaction process.

[0003] In addition, existing pneumatic discharge systems are usually quite simple and cannot flexibly meet the pressure requirements under different compaction conditions. In practical applications, due to the complex changes in gas pressure during compaction, excessive release of gas pressure may lead to pressure imbalance inside the equipment, thereby affecting compaction accuracy and efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides an SMC sheet compactor to solve the technical problem mentioned in the background art that the air pressure emission system in the prior art is usually relatively simple and cannot flexibly cope with the pressure requirements under different compaction states.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an SMC sheet compactor, comprising a base, on which a compaction mechanism is provided. The compaction mechanism includes a bottom mold, a hydraulic cylinder, a connecting rod, a connecting frame, an air cylinder, and a pressing mold. The bottom mold is mounted on the base. Two sets of hydraulic cylinders are mounted on the base. The connecting rod is mounted on the telescopic ends of the two sets of hydraulic cylinders. The connecting frame is mounted on the connecting rod. The air cylinder is mounted at the bottom end of the connecting frame. The pressing mold is mounted at the bottom end of the air cylinder. A pressure relief mechanism is provided on the air cylinder. The pressure relief mechanism includes an exhaust pipe, a connecting sleeve, a spiral plate, a mounting plate, a center rod, and a sealing plate. The exhaust pipe is mounted on the outer wall of the air cylinder. The connecting sleeve is mounted at the bottom end of the air cylinder. The spiral plate is mounted on the inner wall of the connecting sleeve. The mounting plate is mounted on the top end of the spiral plate. The center rod is mounted inside the mounting plate. The sealing plate is mounted at the bottom end of the center rod.

[0008] The present invention is further configured such that the bottom surface of the connecting sleeve is flush with the bottom surface of the molding die.

[0009] This design ensures uniform contact between the connecting sleeve and the bottom surface of the mold, avoiding unstable pressure distribution caused by uneven connection, thus making the force more uniform during the compaction process and improving the stability of the compaction effect.

[0010] The present invention is further configured such that a sealing strip is provided on the bottom surface of the sealing plate, and a sealing groove is provided on the inner bottom surface of the connecting sleeve.

[0011] The combined design of the sealing strip and sealing groove effectively prevents gas leakage, ensures effective gas discharge during compaction, and prevents external air from entering the system, thereby improving the equipment's sealing performance and operating efficiency.

[0012] The present invention is further configured such that a limiting rod is provided on the top surface of the mounting plate, and multiple sets of the limiting rod are provided; a limiting ring is installed on the inner wall of the connecting sleeve, and the limiting ring is slidably connected to the multiple sets of the limiting rod.

[0013] The cooperation of the limit rod and the limit ring can limit the movement range of the connecting sleeve, ensuring that the relative positions of each component remain consistent, thereby avoiding the impact on the accuracy and performance of the equipment due to improper movement of components, and ensuring the stable operation of the system.

[0014] The present invention is further configured such that a top ring is installed at the top of the multiple sets of limiting rods.

[0015] The top ring design at the top of the limit rod further enhances the stability of the limit rod, preventing excessive sliding or deformation, thereby enhancing the overall durability and precision of the equipment and ensuring reliability during long-term use.

[0016] The present invention is further configured such that the spiral plate is configured as an elastic sheet with a certain degree of elasticity.

[0017] The flexible spiral plate can adapt to pressure changes during the compaction process, ensuring the stability of the sealing effect, avoiding seal failure due to external pressure fluctuations, ensuring smooth gas discharge during the exhaust process, and extending the service life of the equipment.

[0018] The present invention is further configured such that a mixing mechanism is provided on the base, the mixing mechanism including a support plate, a material bucket, a support frame, a mounting plate, a motor, a reducer, a rotating rod, a rotating frame, and a mixing block. The support plate is installed on the top surface of the base, the material bucket is installed on the top of the support plate, the support frame is installed on the top surface of the material bucket, the mounting plate is installed on the support frame, the motor is installed on the mounting plate, the reducer is installed on the mounting plate and its input end is connected to the output end of the motor, the rotating rod rotatably connects the output end of the reducer to the material bucket, the rotating frame is installed on the outer wall of the rotating rod, and the mixing block is installed at both ends of the rotating frame.

[0019] The mixing mechanism is driven by a motor and the speed is adjusted by a reducer. The cooperation between the rotating rod and the rotating frame makes the mixing block constantly tumble in the material bucket, ensuring uniform mixing of materials, avoiding material stratification or unevenness, improving material processing efficiency, and ensuring the quality of the final product.

[0020] The present invention is further configured such that a discharge pipe is installed on the outer wall of the material barrel, and a valve is provided on the discharge pipe.

[0021] The design of the discharge pipe and valves can control the discharge speed and amount of materials, avoid excessive discharge or leakage, ensure smooth material discharge, and provide more precise control during operation, thus ensuring the safety and efficiency of the production process.

[0022] (III) Beneficial Effects

[0023] Compared with the prior art, this utility model provides an SMC sheet compactor, which has the following beneficial effects:

[0024] 1. The compaction mechanism uses the extension and retraction control of hydraulic cylinders to press down the die, thereby accurately compacting the material to be compacted and ensuring uniformity and stability during the compaction process. The hydraulic cylinders can provide different levels of pressure according to the adjustment of the control system to meet the compaction requirements of different materials. Through the transmission action of the connecting rod, the compaction mechanism can smoothly control the contact between the die and the bottom die, avoiding uneven compaction caused by insufficient or excessive pressure. Due to the precise control of the compaction process, not only is production efficiency improved, but material waste is also reduced, ensuring that the compaction effect meets the expected standard each time.

[0025] 2. The pressure relief mechanism effectively solves the problem of air pressure not being released in time during the compaction process by setting up components such as exhaust pipe, connecting sleeve, spiral plate, and sealing plate. As the mold and the bottom mold come into contact, the air pressure pushes the sealing plate to move, and drives the mounting sleeve, limit rod, and other components to slide through the central rod, finally opening the isolation between the sealing strip and the sealing groove to form an airflow channel. This allows the air pressure generated during the compaction process to be smoothly discharged through the air cylinder. This mechanism can quickly and effectively discharge the gas in the bottom mold during the compaction process, avoiding equipment failure or uneven compaction due to excessive air pressure, ensuring stable equipment operation and improving compaction quality.

[0026] 3. The mixing mechanism is driven by a motor-driven reducer to rotate, which in turn drives the rotating rod and frame, causing the mixing blocks to rotate continuously within the material bucket. This ensures uniform mixing of the materials. During the mixing process, the mixing blocks ensure continuous agitation of the materials, preventing sedimentation or uneven mixing, thus improving mixing efficiency and uniformity. After mixing, the materials can be smoothly discharged through the discharge pipe. The valve on the discharge pipe effectively controls the speed and amount of material discharge, preventing over-discharge or leakage, and ensuring smooth and safe production. Therefore, the mixing mechanism not only improves material processing efficiency but also optimizes operational controllability and safety. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an SMC sheet compactor according to the present invention;

[0028] Figure 2 This is a cross-sectional view of the pressure mold in this utility model;

[0029] Figure 3 This is a cross-sectional view of the pressure relief mechanism in this utility model.

[0030] Figure 4 This is a schematic diagram of the spiral plate in this utility model;

[0031] Figure 5 This is a cross-sectional view of the mixing mechanism in this utility model.

[0032] In the diagram: 1. Base; 2. Bottom mold; 3. Hydraulic cylinder; 4. Connecting rod; 5. Connecting frame; 6. Air cylinder; 7. Press mold; 8. Exhaust pipe; 9. Connecting sleeve; 10. Spiral plate; 11. Mounting plate; 12. Center rod; 13. Sealing plate; 14. Sealing strip; 15. Sealing groove; 16. Limiting rod; 17. Limiting ring; 18. Top ring; 19. Support plate; 20. Material bucket; 21. Support frame; 22. Mounting plate; 23. Motor; 24. Reducer; 25. Rotating rod; 26. Rotating frame; 27. Mixing block; 28. Discharge pipe. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0035] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0036] Please see Figures 1-5 An SMC sheet compactor includes a base 1, on which a compaction mechanism is provided. The compaction mechanism includes a bottom mold 2, a hydraulic cylinder 3, a connecting rod 4, a connecting frame 5, an air cylinder 6, and a pressing mold 7. The bottom mold 2 is installed on the base 1. Two sets of hydraulic cylinders 3 are provided and installed on the base 1. The connecting rod 4 is installed at the telescopic ends of the two sets of hydraulic cylinders 3. The connecting frame 5 is installed on the connecting rod 4. The air cylinder 6 is installed at the bottom end of the connecting frame 5. The pressing mold 7 is installed at the bottom end of the air cylinder 6. A pressure relief mechanism is provided on the air cylinder 6. The pressure relief mechanism includes an exhaust pipe 8, a connecting sleeve 9, a spiral plate 10, a mounting plate 11, a center rod 12, and a sealing plate 13. The exhaust pipe 8 is installed on the outer wall of the air cylinder 6. The connecting sleeve 9 is installed at the bottom end of the air cylinder 6. The spiral plate 10 is installed on the inner wall of the connecting sleeve 9. The mounting plate 11 is installed at the top end of the spiral plate 10. The center rod 12 is installed inside the mounting plate 22. The sealing plate 13 is installed at the bottom end of the center rod 12.

[0037] The bottom surface of the connecting sleeve 9 is flush with the bottom surface of the mold 7.

[0038] The design principle is to ensure that the contact surface between the connecting sleeve 9 and the mold 7 is flat, to avoid uneven pressing force caused by uneven connection, thereby improving the stability and uniformity of the compaction effect and ensuring that the pressure applied by the mold 7 to the material to be compacted is evenly distributed.

[0039] The bottom surface of the sealing plate 13 is provided with a sealing strip 14, and the bottom surface of the connecting sleeve 9 is provided with a sealing groove 15.

[0040] This principle achieves a good sealing effect through the cooperation of the sealing strip 14 and the sealing groove 15. The sealing strip 14 prevents gas leakage, while the sealing groove 15 provides a stable installation space, allowing the sealing strip 14 to effectively contact the inner bottom surface of the connecting sleeve 9, thereby ensuring the gas sealing within the system and preventing external gas from entering, ensuring the smooth progress of the compaction process.

[0041] The top surface of the mounting plate 11 is provided with a limiting rod 16, and multiple sets of limiting rods 16 are provided. A limiting ring 17 is installed on the inner wall of the connecting sleeve 9, and the limiting ring 17 is slidably connected to the multiple sets of limiting rods 16.

[0042] This design principle limits the movement range of the connecting sleeve 9 through the cooperation of the limiting rod 16 and the limiting ring 17, ensuring that the connecting sleeve 9 will not undergo excessive displacement during operation. The sliding connection between the limiting rod 16 and the limiting ring 17 provides a smooth movement path, which helps maintain the accuracy and stability of the equipment and avoids affecting the compaction effect due to improper component positioning.

[0043] A top ring 18 is installed at the top of the multiple sets of limit rods 16.

[0044] The installation of the top ring 18 enhances the stability of the limit rod 16, preventing the limit rod 16 from deforming or sliding beyond the predetermined range due to excessive force, thereby ensuring that the relative position between the connecting sleeve 9 and the mold 7 remains accurate, further improving the stability and durability of the equipment, and ensuring reliability during long-term use.

[0045] The spiral plate 10 is configured as an elastic sheet with a certain degree of elasticity.

[0046] The telescopic design of the elastic spiral plate 10 allows it to adapt to changes in air pressure or force during compaction, ensuring a consistently stable sealing effect. The elastic plate automatically adjusts its shape according to changes in external pressure during compaction, thereby ensuring the sealing system always functions effectively, preventing seal failure, and improving the overall efficiency and service life of the equipment.

[0047] In this embodiment, when compaction begins, the hydraulic cylinder 3 extends and retracts via the hydraulic control system. The extension and retraction of the hydraulic cylinder 3 pushes the connecting rod 4 up and down, thereby moving the connecting frame 5 and the air cylinder 6. Since the air cylinder 6 is installed at the bottom of the connecting frame 5, it is pushed downward by the hydraulic control system, causing the pressing mold 7 to contact the bottom mold 2. The downward pressure of the pressing mold 7 compacts the material to be pressed. The magnitude of the compaction force depends on the extension and retraction of the hydraulic cylinder 3, i.e., the output force of the hydraulic cylinder 3. After the pressing mold 7 enters the bottom mold 2, the air pressure between them pushes the sealing plate 13 to move and pushes the mounting sleeve through the center rod 12. The mounting sleeve slides along the limiting ring 17 through multiple sets of limiting rods 16. When the mounting plate 22 moves, it stretches the spiral plate 10, causing the sealing strip 14 on the bottom surface of the sealing plate 13 to separate from the sealing groove 15, forming a flow space inside the connecting sleeve 9. The air pressure inside the bottom mold 2 is then discharged through the flow space and then through the air cylinder 6 and the exhaust pipe 8.

[0048] Please see Figure 5As one embodiment of the mixing mechanism: A mixing mechanism is provided on the base 1. The mixing mechanism includes a support plate 19, a material bucket 20, a support frame 21, a mounting plate 22, a motor 23, a reducer 24, a rotating rod 25, a rotating frame 26, and a mixing block 27. The support plate 19 is installed on the top surface of the base 1, the material bucket 20 is installed on the top of the support plate 19, the support frame 21 is installed on the top surface of the material bucket 20, the mounting plate 22 is installed on the support frame 21, the motor 23 is installed on the mounting plate 22, the reducer 24 is installed on the mounting plate 22 and its input end is connected to the output end of the motor 23, the rotating rod 25 is rotatably connected to the output end of the reducer 24 and the material bucket 20, the rotating frame 26 is installed on the outer wall of the rotating rod 25, and the mixing block 27 is installed at both ends of the rotating frame 26.

[0049] A discharge pipe 28 is installed on the outer wall of the material hopper 20, and a valve is installed on the discharge pipe 28.

[0050] The discharge pipe 28 and the valve are designed to control the material discharge rate. The valve can precisely regulate the material discharge volume, preventing excessive or irregular material discharge, ensuring efficient and safe material handling during production, reducing waste, and improving operational controllability.

[0051] More specifically, after the motor 23 starts, the drive reducer 24 outputs a speed and drives the rotating frame 26 to rotate through the rotating rod 25. The rotating frame 26 is fixed to the outer wall of the rotating rod 25. The rotating frame 26 drives the stirring block 27 to start rotating inside the material bucket 20. The stirring block 27 rotates continuously inside the material bucket 20, and the material is continuously stirred to ensure that the material is evenly mixed. When the material is evenly mixed, the mixed material can be discharged through the discharge pipe 28 installed on the outer wall of the material bucket 20. The discharge pipe 28 is equipped with a valve to control the discharge of material and prevent leakage or excessive discharge.

[0052] In summary, during the use or operation of the overall equipment: when compaction begins, hydraulic cylinder 3 extends and retracts through the hydraulic control system. The extension and retraction of hydraulic cylinder 3 pushes connecting rod 4 up and down, thereby moving connecting frame 5 and air cylinder 6. Since air cylinder 6 is installed at the bottom of connecting frame 5, it is pushed downward by the hydraulic control system, causing pressing mold 7 to contact bottom mold 2. The downward pressure of pressing mold 7 compacts the material to be compacted. The compaction force depends on the extension and retraction of hydraulic cylinder 3, i.e., the output force of hydraulic cylinder 3. After pressing mold 7 enters bottom mold 2, the air pressure between them pushes sealing plate 13 to move and pushes mounting sleeve through center rod 12. Mounting sleeve slides along limiting ring 17 through multiple sets of limiting rods 16. When mounting plate 22 moves, it stretches spiral plate 10, causing sealing strip 14 on the bottom surface of sealing plate 13 to separate from sealing groove 15, creating a flow space inside connecting sleeve 9. The air pressure inside bottom mold 2 is then discharged through the flow space and then through air cylinder 6 and exhaust pipe 8.

[0053] After the motor 23 starts, the drive reducer 24 outputs a speed and drives the rotating frame 26 to rotate through the rotating rod 25. The rotating frame 26 is fixed to the outer wall of the rotating rod 25. The rotating frame 26 drives the stirring block 27 to start rotating inside the material bucket 20. The stirring block 27 rotates continuously inside the material bucket 20, and the material is continuously stirred to ensure that the material is evenly mixed. When the material is evenly mixed, the mixed material can be discharged through the discharge pipe 28 installed on the outer wall of the material bucket 20. The discharge pipe 28 is equipped with a valve to control the discharge of material and prevent leakage or excessive discharge.

[0054] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An SMC sheet compacting machine comprising a base (1), characterised in that: The base (1) is provided with a compaction mechanism, the compaction mechanism comprises a bottom die (2), a hydraulic cylinder (3), a connecting rod (4), a connecting frame (5), a gas cylinder (6) and a compression die (7), the bottom die (2) is installed on the base (1), the hydraulic cylinder (3) is provided with two groups of installation on the base (1), the connecting rod (4) is installed at the telescopic end of the two groups of hydraulic cylinders (3), the connecting frame (5) is installed on the connecting rod (4), the gas cylinder (6) is installed at the bottom end of the connecting frame (5), the compression die (7) is installed at the bottom end of the gas cylinder (6), the gas cylinder (6) is provided with a pressure relief mechanism, the pressure relief mechanism comprises an exhaust pipe (8), a connecting sleeve (9), a spiral plate (10), a mounting disc (11), a center rod (12) and a sealing plate (13), the exhaust pipe (8) is installed on the outer wall of the gas cylinder (6), the connecting sleeve (9) is installed at the bottom end of the gas cylinder (6), the spiral plate (10) is installed on the inner wall of the connecting sleeve (9), the mounting disc (11) is installed at the top end of the spiral plate (10), the center rod (12) is installed in the mounting plate (22), and the sealing plate (13) is installed at the bottom end of the center rod (12).

2. A SMC sheet compacting machine according to claim 1, characterized in that: The bottom surface of the connecting sleeve (9) is flush with the bottom surface of the compression die (7).

3. A SMC sheet compacting machine according to claim 2, characterized in that: The bottom surface of the sealing plate (13) is provided with a sealing strip (14), and the inner bottom surface of the connecting sleeve (9) is provided with a sealing groove (15).

4. A SMC sheet compacting machine according to claim 3, characterized in that: The top surface of the mounting disc (11) is provided with a plurality of limiting rods (16), the inner wall of the connecting sleeve (9) is provided with a limiting ring (17), and the limiting ring (17) is in sliding connection with the plurality of limiting rods (16).

5. A SMC sheet compacting machine according to claim 4, characterised in that: A plurality of top ends of the limiting rods (16) are provided with a top ring (18).

6. A SMC sheet compacting machine according to claim 5, characterized in that: The spiral plate (10) is provided as an elastic sheet with certain elasticity.

7. A SMC sheet compacting machine according to claim 6, characterized in that: The base (1) is provided with a mixing mechanism, the mixing mechanism comprises a supporting plate (19), a material barrel (20), a supporting frame (21), a mounting plate (22), a motor (23), a speed reducer (24), a rotating rod (25), a rotating frame (26) and a stirring block (27), the supporting plate (19) is installed on the top surface of the base (1), the material barrel (20) is installed at the top end of the supporting plate (19), the supporting frame (21) is installed on the top surface of the material barrel (20), the mounting plate (22) is installed on the supporting frame (21), the motor (23) is installed on the mounting plate (22), the speed reducer (24) is installed on the mounting plate (22) and the input end is connected with the output end of the motor (23), the rotating rod (25) is rotatably connected with the output end of the speed reducer (24) and the material barrel (20), the rotating frame (26) is installed on the outer wall of the rotating rod (25), and the stirring block (27) is installed at both ends of the rotating frame (26).

8. A SMC sheet compacting machine according to claim 7, characterized in that: The outer wall of the material barrel (20) is provided with a discharge pipe (28), and the discharge pipe (28) is provided with a valve.

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