Novel oil cylinder structure for molding and compacting

Abstract

The utility model discloses a novel oil cylinder structure for molding and compacting. The novel oil cylinder structure comprises a plurality of oil cylinder assemblies which are uniformly arranged and a pressing plate which is connected with the oil cylinder assemblies, a piston rod in the oil cylinder assembly is connected with the pressing plate through a fixing piece. The oil cylinder assembly comprises a piston rod, an oil cylinder main body and a piston; an oil port A and an oil port B are formed in the side, away from the pressing plate, of the oil cylinder body. An oil way I is arranged between one side of the oil port A and the piston; an oil path II is arranged on one side of the piston and the piston rod; a cavity formed after the first oil way and the piston are pushed is a rodless cavity. And a cavity on one side of the piston rod of the oil way II is a rod cavity. The oil inlet and the oil outlet are arranged on the same side. By means of the innovative design, connection with more oil cylinders of the pressing plate is facilitated, and the overall compaction effect is effectively improved. Through the design, the oil cylinders can be arranged more tightly, and the flexibility and the efficiency of the compaction mechanism are improved.

Description

Technical Field

[0001] This utility model relates to a novel hydraulic cylinder structure for molding and compaction, belonging to the field of casting machinery and equipment manufacturing technology. Background Technology

[0002] In the casting production process, the sand mold serves as the cavity for the casting, and its quality has a significant impact on the forming and final properties of the casting. Sand mold making typically involves mixing raw sand, binder, and other auxiliary materials to form a sand mold capable of supporting the casting process. One of the key steps in sand mold making is filling the sand box with loose molding sand and compacting it using a compaction mechanism to form a cavity with a specific shape.

[0003] Traditional sand compaction mechanisms typically employ hydraulic cylinder systems to compact molding sand. In this traditional design, the oil inlet and outlet of the cylinder are usually located on the side of the cylinder. While this design meets the basic compaction requirements to some extent, it has limitations in practical applications.

[0004] First, the side-mounted arrangement of the hydraulic cylinder inlets and outlets limits the number of cylinders that can be installed. In actual compaction, the parallel use of multiple cylinders can improve compaction effect and efficiency. However, the side-mounted design restricts the spacing between the cylinders, making it difficult to install more cylinders, thus affecting the uniformity and efficiency of compaction.

[0005] Secondly, the traditional design of the hydraulic cylinder connection method also limits the effective cooperation between the pressure plate and the hydraulic cylinder. Due to the location of the hydraulic cylinder's inlet and outlet, complex piping layout is often required, which not only increases the complexity of the system but may also affect the hydraulic cylinder's response speed and working stability, further reducing compaction efficiency. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides a novel hydraulic cylinder structure for molding and compaction, thereby solving the aforementioned technical problems.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a novel hydraulic cylinder structure for molding and compaction, comprising multiple uniformly arranged hydraulic cylinder assemblies and connected pressure plates; the piston rod in the hydraulic cylinder assembly is connected to the pressure plate through a fixing member; the hydraulic cylinder assembly includes a piston rod, a hydraulic cylinder body, and a piston; an oil port A and an oil port B are provided on the side of the hydraulic cylinder body away from the pressure plate; an oil passage one is provided between the side of oil port A and the piston; an oil passage two is provided on the side of the piston and the piston rod; the chamber of the first oil passage and the chamber after the piston is pushed is a rodless chamber; the chamber on the side of the piston rod of the second oil passage is a rod chamber.

[0008] Furthermore, oil port A and oil port B alternately serve as oil inlet and outlet ports. When the piston rod pushes out to drive the pressure plate, oil port A is the oil inlet and oil port B is the oil outlet; when the piston rod retracts, oil port A is the oil outlet and oil port B is the oil inlet.

[0009] Furthermore, it also includes a proximity switch module; the proximity switch module is installed on the cylinder body on the same side as oil port A and oil port B, and the proximity switch module is used to determine whether the cylinder has retracted.

[0010] Furthermore, it also includes a pressure sensor module; the pressure sensor module is installed on the cylinder body on the same side as oil port A and oil port B, and the pressure sensor module is used to monitor the pressure changes inside the cylinder in real time.

[0011] Furthermore, the pressure plate has several evenly arranged slots; the slots have connection holes; one side of the cylinder assembly extends into the slot, and the piston rod of the cylinder assembly is fixedly connected to the pressure plate by a screw assembly.

[0012] Furthermore, the cylinder assembly is provided with multiple sealing rings; some sealing rings are provided between the piston rod and the cylinder body; some sealing rings are provided between the piston and the cylinder body; and some sealing rings are provided on the outer connection surface of the piston and the pipeline where the oil port B is located.

[0013] Furthermore, the hydraulic cylinder assembly comprises 48 units, which are evenly arranged in the corresponding slots of the pressure plate.

[0014] Furthermore, the cylinder assembly is made of ferrous material.

[0015] Furthermore, the pressure plate is made of manganese plate material.

[0016] The beneficial effects of this utility model are:

[0017] 1. This application proposes a novel hydraulic cylinder design, employing an arrangement where the inlet and outlet ports are on the same side. This innovative design not only facilitates the connection of more hydraulic cylinders to the pressure plate but also effectively improves the overall compaction effect. Through this design, the hydraulic cylinders can be arranged more closely, increasing the flexibility and efficiency of the compaction mechanism.

[0018] Specifically, by arranging the inlet and outlet ports of the hydraulic cylinders on the same side, a more compact piping design can be achieved, reducing pipe bends and connection points, thereby lowering the system failure rate. At the same time, this arrangement allows each cylinder to apply pressure more evenly, thus increasing the compaction density of the molding sand and meeting the production requirements of high-strength castings.

[0019] 2. By setting up proximity switch modules and pressure sensor modules, the working status and internal pressure changes of the hydraulic cylinder can be monitored in real time, which enhances the safety and control accuracy of the system and reduces potential failure risks.

[0020] 3. The design of multiple sealing rings ensures that the oil inside the cylinder will not leak, improving the system's sealing performance and reducing maintenance costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall connection structure of this utility model;

[0022] Figure 2 This is a schematic top view of the overall connection structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the hydraulic cylinder of this utility model;

[0024] Figure 4 For the present utility model Figure 3 A schematic diagram of the K-axis structure;

[0025] Figure 5 This is a schematic front view of the pressure plate structure of this utility model;

[0026] Figure 6 For the present utility model Figure 5 BB structure diagram;

[0027] Figure 7 For the present utility model Figure 5 A schematic diagram of the CC structure.

[0028] In the diagram: 1. Hydraulic cylinder assembly, 11. Piston rod, 12. Hydraulic cylinder body, 121. Oil port A, 122. Oil port B, 13. Piston, 2. Pressure plate, 21. Slot, 3. Hydraulic circuit one, 4. Hydraulic circuit two, 5. Proximity switch module, 6. Sealing ring, 7. Pressure sensor module. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0031] Reference Figures 1-7 The diagram shows a novel hydraulic cylinder structure for molding and compaction, comprising multiple uniformly arranged hydraulic cylinder assemblies 1 and connected pressure plates 2; the piston rod 11 in each hydraulic cylinder assembly 1 is connected to the pressure plate 2 via a fixing member; each hydraulic cylinder assembly 1 includes a piston rod 11, a cylinder body 12, and a piston 13; the cylinder body 12 is provided with an oil port A121 and an oil port B122 on the side away from the pressure plate 2; an oil passage 3 is provided between the side of oil port A121 and the piston 13; an oil passage 4 is provided between the side of the piston 13 and the side of the piston rod 11; the chamber of the oil passage 3 and the chamber after the piston 13 is pushed is a rodless chamber; the chamber of the oil passage 4 on the side of the piston rod 11 is a rod chamber.

[0032] In this preferred embodiment, oil port A121 and oil port B122 alternately serve as oil inlet and outlet ports. When the piston rod 11 extends and drives the pressure plate, oil port A121 is the oil inlet and oil port B122 is the oil outlet; when the piston rod 11 retracts, oil port A121 is the oil outlet and oil port B122 is the oil inlet.

[0033] In this preferred embodiment, a proximity switch module 5 is also included; the proximity switch module 5 is disposed on the cylinder body 12 on the same side as oil port A121 and oil port B122, and the proximity switch module 5 is used to determine whether the cylinder retracts.

[0034] In this preferred embodiment, a pressure sensor module 7 is also included; the pressure sensor module is disposed on the cylinder body 12 on the same side as oil port A121 and oil port B122, and the pressure sensor module is used to monitor the pressure change in the cylinder in real time.

[0035] In this preferred embodiment, continue to refer to... Figure 5-7 The pressure plate 2 has several evenly arranged slots 21; the slots 21 have connecting holes; one side of the cylinder assembly 1 extends into the slot 21, and the piston rod 11 of the cylinder assembly 1 is fixedly connected to the pressure plate 2 by a screw assembly.

[0036] In this preferred embodiment, the cylinder assembly 1 is provided with a plurality of sealing rings 6; some sealing rings 6 are provided between the piston rod 11 and the cylinder body 12; some sealing rings 6 are provided between the piston 13 and the cylinder body 12; and some sealing rings 6 are provided on the outer connection surface of the pipeline where the piston 13 and the oil port B122 are located.

[0037] In this preferred embodiment, the hydraulic cylinder assembly 1 is provided with 48 units, which are evenly arranged in the grooves corresponding to the pressure plate 2.

[0038] In this preferred embodiment, the cylinder assembly 1 is made of ferrous material.

[0039] In this preferred embodiment, the pressure plate 2 is made of manganese plate material.

[0040] Working principle: The hydraulic cylinder assembly 1 consists of a piston rod 11, a hydraulic cylinder body 12, and a piston 13. Two oil ports, A121 and B122, are located on one side of the hydraulic cylinder body 12. Depending on the working state, oil ports A121 and B122 alternately function as inlet and outlet ports, controlling the pushing and retraction of the hydraulic cylinder. When the piston rod 11 pushes out of the pressure plate, oil port A121 acts as the inlet, and oil passage 3 delivers oil to one side of the piston 13, pushing the piston 13 forward. Simultaneously, oil port B122 acts as the outlet, and oil flows out from oil port B122. Conversely, when the piston rod 11 retracts, oil port A121 becomes the outlet, and oil port B122 becomes the inlet, changing the direction of oil flow accordingly.

[0041] The proximity switch module 5 monitors the retraction status of the hydraulic cylinder in real time. When the cylinder reaches the set position, the proximity switch sends a signal, and the control system adjusts accordingly based on the feedback. The pressure sensor module 7 monitors the internal pressure of the hydraulic cylinder to ensure it operates within a safe range and prevents malfunctions caused by excessive pressure.

[0042] The hydraulic cylinder assembly 1 is inserted into the slot 21 of the pressure plate 2 and fixed with screws, ensuring that it does not shift during operation. At the same time, the configuration of multiple sealing rings 6 effectively prevents oil leakage, ensuring the working efficiency and service life of the hydraulic cylinder.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel hydraulic cylinder structure for molding and compaction, characterized in that, It includes multiple uniformly arranged hydraulic cylinder assemblies (1) and connected pressure plates (2); the piston rod (11) in the hydraulic cylinder assembly (1) is connected to the pressure plate (2) through a fixing member; the hydraulic cylinder assembly (1) includes a piston rod (11), a hydraulic cylinder body (12) and a piston (13); the hydraulic cylinder body (12) is provided with an oil port A (121) and an oil port B (122) on the side away from the pressure plate (2); an oil passage one (3) is provided between the side of the oil port A (121) and the piston (13); an oil passage two (4) is provided between the side of the piston (13) and the side of the piston rod (11); the chamber after the piston (13) is pushed by the oil passage one (3) is a rodless chamber; the chamber on the side of the piston rod (11) of the oil passage two (4) is a rod chamber.

2. The novel hydraulic cylinder structure for molding and compaction according to claim 1, characterized in that, The oil port A (121) and oil port B (122) alternately serve as oil inlet and outlet ports. When the piston rod (11) pushes out to drive the pressure plate, the oil port A (121) is the oil inlet and the oil port B (122) is the oil outlet. When the piston rod (11) retracts, the oil port A (121) is the oil outlet and the oil port B (122) is the oil inlet.

3. The novel hydraulic cylinder structure for molding and compaction according to claim 1, characterized in that, It also includes a proximity switch module (5); the proximity switch module (5) is located on the cylinder body (12) on the same side as oil port A (121) and oil port B (122), and the proximity switch module (5) is used to determine whether the cylinder retracts.

4. The novel hydraulic cylinder structure for molding and compaction according to claim 1, characterized in that, It also includes a pressure sensor module (7); the pressure sensor module is set on the cylinder body (12) on the same side of oil port A (121) and oil port B (122), and the pressure sensor module (7) is used to monitor the pressure change in the cylinder in real time.

5. A novel hydraulic cylinder structure for molding and compaction according to claim 1, characterized in that, The pressure plate (2) has several evenly arranged slots (21); the slots (21) have connecting holes; one side of the cylinder assembly (1) extends into the slot (21), and the piston rod (11) of the cylinder assembly (1) is fixedly connected to the pressure plate (2) by a screw assembly.

6. A novel hydraulic cylinder structure for molding and compaction according to claim 1, characterized in that, The cylinder assembly (1) is provided with multiple sealing rings (6); some sealing rings (6) are provided between the piston rod (11) and the cylinder body (12); some sealing rings (6) are provided between the piston (13) and the cylinder body (12); some sealing rings (6) are provided on the outer connection surface of the pipeline where the piston (13) and the oil port B (122) are located.

7. A novel hydraulic cylinder structure for molding and compaction according to claim 1, characterized in that, The hydraulic cylinder assembly (1) has 48 units, which are evenly arranged in the slots (21) corresponding to the pressure plate (2).

8. A novel hydraulic cylinder structure for molding and compaction according to claim 1, characterized in that, The cylinder assembly (1) is made of ferrous material.

9. A novel hydraulic cylinder structure for molding and compaction according to claim 1, characterized in that, The pressure plate (2) is made of manganese plate material.

Images