Oil leakage prevention structure of oil cylinder of die

Abstract

The utility model discloses an oil cylinder oil leakage prevention structure of a die, which comprises a die body, oil cylinder bodies are detachably connected to the outer surfaces of the two sides of the die body, a front end cover is fixedly connected to the outer surface of the front end of each oil cylinder body, and a rear end cover is fixedly connected to the outer surface of the rear end of each oil cylinder body. According to the oil cylinder oil leakage prevention structure of the mold, the arranged oil way connector is installed on the oil holes of the front end cover and the rear end cover in the using process, then an oil liquid pipeline is fixedly connected to the oil filtering pipe head in an inserted mode, the sealing rubber ring in the oil filtering pipe head can achieve the sealing effect, and when oil liquid passes through the oil filtering pipe head, the oil leakage prevention effect is achieved. The conical filter screen in the oil filter pipe head can filter oil liquid, filtered impurities can slide into the deposition pipe to be stored, the filtered oil liquid enters the oil cylinder body through the front end cover or the rear end cover, the situation that the oil liquid contains the impurities to damage the inner wall of the oil cylinder body can be avoided, and the condition of oil leakage can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a leak-proof structure for a mold cylinder. Background Technology

[0002] In mold design, a mold cylinder usually refers to a hydraulic cylinder, which is mainly composed of a cylinder barrel, piston, and sealing elements. Mold cylinders are usually installed on the mold and are controlled by a hydraulic system to control the opening and closing of the mold and the pressure generated during mold processing. However, existing cylinders have certain inconveniences in use.

[0003] Chinese Utility Model Patent Application No. CN202321998454.3 discloses a hydraulic cylinder mold ejection structure. This structure, comprised of a hydraulic cylinder piston mold platform, a piston rod mold, a piston rod mold, a piston mold, a lower hydraulic rod, and a side hydraulic rod, provides an integrated ejection mold for the piston and piston rod of the tension cylinder in a track assembly. After the piston and piston rod are integrally cast, the integrally formed piston product can be automatically ejected, facilitating easier handling of the piston components by casting workers and improving the convenience of hydraulic cylinder piston processing. The existing method of using metal hydraulic cylinder pistons requires breaking the outer shell after casting to remove the product, resulting in single-use molds and high manufacturing costs. Furthermore, the hydraulic cylinders in this mold are not suitable for filtering the oil supplied by the hydraulic circuit. Due to the complex working environment, impurities easily enter the oil, causing wear and leakage. Additionally, the piston seals are prone to deformation and loosening after prolonged use, leading to leakage and a generally poor leak-proof effect. Therefore, we propose a leak-proof structure for the hydraulic cylinders in this mold. Utility Model Content

[0004] The main purpose of this utility model is to provide a leak-proof structure for the hydraulic cylinder of a mold, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a hydraulic cylinder anti-leakage structure for a mold, comprising a mold body, wherein hydraulic cylinder bodies are detachably connected to both outer surfaces of the mold body, a front end cover is fixedly connected to the front outer surface of the hydraulic cylinder body, and a rear end cover is fixedly connected to the rear outer surface of the hydraulic cylinder body. Oil circuit connectors are detachably connected to the upper outer surfaces of both the front and rear end covers. An oil filter pipe head is fixedly connected to one end of the oil circuit connector. A heat dissipation section is provided in the middle of the oil filter pipe head, and a heat-conducting ring is provided on the outer wall of the heat dissipation section. A deposition pipe is fixedly connected to the outer wall of the oil filter pipe head, and a sealing cap is detachably connected to one end of the deposition pipe. A sealing rubber ring and a conical filter screen are fixedly connected to the inner wall of the oil filter pipe head, with the sealing rubber ring located above the conical filter screen.

[0006] Preferably, the mold body has a mold cavity in the middle, a base plate is detachably connected to the lower outer surface of the mold body, an internal piston is movably connected to the inside of the cylinder body, and a piston rod is fixedly connected to the outer surface of one end of the internal piston.

[0007] Preferably, the outer wall of the built-in piston is provided with an annular groove, and a piston seal and fastening seat are provided in the middle of the annular groove. The fastening seat is located on one side of the piston seal, and a pusher is provided in the middle of the fastening seat. A spring is provided between the pusher and the fastening seat.

[0008] Preferably, the oil filter pipe head is welded to the heat dissipation section, the heat-conducting ring passes through the heat dissipation section, and the number of deposition pipes is two sets.

[0009] Preferably, the built-in piston and the annular groove are integrally formed, and the number of annular grooves is two sets.

[0010] Preferably, the push column is movably connected to the fastening seat via springs, and there are two sets of springs. One end of the push column has a concave structure.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The oil line connector is installed on the oil holes of the front and rear covers during use. The oil line is then fixedly inserted into the oil filter head. The sealing ring inside the oil filter head provides a seal. When oil passes through the filter head, the conical filter screen filters it, and the filtered impurities slide into the sedimentation tube for storage. The filtered oil then enters the cylinder body through the front or rear cover, preventing impurities from damaging the cylinder's internal structure and avoiding oil leaks. The fastening seat uses the spring's elasticity to create outward pressure on the push rod, which pushes the piston seal, increasing its tension and extending its service life. This prevents deformation and loosening of the piston seal and improves leak prevention. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a structural diagram of the oil circuit connector of this utility model;

[0015] Figure 3 This is a diagram showing the internal structure of the oil filter head of this utility model;

[0016] Figure 4 This is a diagram showing the internal structure of the cylinder body of this utility model;

[0017] Figure 5 This is a structural diagram of the fastening base of this utility model.

[0018] In the diagram: 1. Mold body; 2. Cylinder body; 3. Mold cavity; 4. Base plate; 5. Front end cover; 6. Rear end cover; 7. Oil circuit connector; 8. Oil filter pipe head; 9. Heat dissipation section; 10. Heat conduction ring; 11. Deposition pipe; 12. Sealing cover; 13. Sealing ring; 14. Conical filter screen; 15. Internal piston; 16. Piston rod; 17. Annular groove; 18. Piston seal; 19. Fastening seat; 20. Pushing column; 21. Spring. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-5As shown in the figure, the present invention provides a hydraulic cylinder anti-leakage structure for a mold, including a mold body 1. A hydraulic cylinder body 2 is detachably connected to both outer surfaces of the mold body 1. A front end cover 5 is fixedly connected to the front outer surface of the hydraulic cylinder body 2, and a rear end cover 6 is fixedly connected to the rear outer surface of the hydraulic cylinder body 2. An oil circuit connector 7 is detachably connected to the upper outer surface of both the front end cover 5 and the rear end cover 6. An oil filter pipe head 8 is fixedly connected to one end of the outer surface of the oil circuit connector 7. A heat dissipation section 9 is provided in the middle of the oil filter pipe head 8. A heat conduction ring 10 is provided on the outer wall of the heat dissipation section 9. A sedimentation pipe 11 is fixedly connected to the outer wall of the oil filter pipe head 8. A sealing cover 12 is detachably connected to one end of the outer surface of the sedimentation pipe 11. A sealing rubber ring 13 and a conical filter screen 14 are fixedly connected to the inner wall of the oil filter pipe head 8. The sealing rubber ring 13 is located above the conical filter screen 14.

[0021] Specifically, in this embodiment, the system includes a mold body 1. A cylinder body 2 is detachably connected to both outer surfaces of the mold body 1. A front cover 5 is fixedly connected to the front outer surface of the cylinder body 2, and a rear cover 6 is fixedly connected to the rear outer surface of the cylinder body 2. Oil circuit connectors 7 are detachably connected to the upper outer surfaces of both the front cover 5 and the rear cover 6. During use, the oil circuit connector 7 is installed onto the oil holes of the front cover 5 and the rear cover 6. Then, the oil pipeline is fixedly inserted into the oil filter pipe head 8. The sealing ring 13 inside the oil filter pipe head 8 provides a sealing effect. When the oil passes through the oil filter pipe head 8, the conical filter screen 14 inside the oil filter pipe head 8 filters the oil. The filtered impurities slide into the sedimentation pipe 11 for storage. After filtration... The oil enters the cylinder body 2 through the front cover 5 or the rear cover 6, which can prevent impurities in the oil from damaging the inner shell of the cylinder body 2. When the oil passes through the heat dissipation section 9, the heat dissipation section 9 can conduct heat to the oil, and the heat conduction ring 10 can accelerate the heat conduction efficiency, which can have a certain cooling effect on the oil. One end of the oil circuit connector 7 is fixedly connected to the outer surface of the filter pipe head 8. The middle of the filter pipe head 8 is provided with the heat dissipation section 9. The outer wall of the heat dissipation section 9 is provided with the heat conduction ring 10. The outer wall of the filter pipe head 8 is fixedly connected to the sedimentation pipe 11. One end of the sedimentation pipe 11 is detachably connected to the outer surface of the sealing cover 12. The inner wall of the filter pipe head 8 is fixedly connected to the sealing rubber ring 13 and the conical filter screen 14. The sealing rubber ring 13 is located above the conical filter screen 14.

[0022] This utility model provides a leak-proof oil cylinder structure for a mold. The oil line connector 7 is installed onto the oil holes of the front cover 5 and the rear cover 6 during use. Then, the oil pipeline is fixedly inserted into the oil filter head 8. The sealing ring 13 inside the oil filter head 8 provides a sealing effect. When oil passes through the oil filter head 8, the conical filter screen 14 inside the oil filter head 8 filters the oil. Filtered impurities slide into the sedimentation tube 11 for storage. The filtered oil enters the cylinder body 2 through the front cover 5 or the rear cover 6, preventing impurities in the oil from damaging the inner lining of the cylinder body 2 and avoiding oil leakage.

[0023] In one embodiment of this utility model, a mold cavity 3 is provided in the middle of the mold body 1, and a base plate 4 is detachably connected to the lower outer surface of the mold body 1. An internal piston 15 is movably connected inside the cylinder body 2, and a piston rod 16 is fixedly connected to the outer surface of one end of the internal piston 15. When in use, the internal piston 15 can drive the piston rod 16 to move by the pressure of the oil.

[0024] In another embodiment of this utility model, the outer wall of the built-in piston 15 is provided with an annular groove 17. A piston seal 18 and a fastening seat 19 are provided in the middle of the annular groove 17. The fastening seat 19 is located on one side of the piston seal 18. A pushing column 20 is provided in the middle of the fastening seat 19. A spring 21 is provided between the pushing column 20 and the fastening seat 19. When in use, the fastening seat 19 can exert outward pressure on the pushing column 20 through the elastic force of the spring 21 itself, so that the pushing column 20 can push the piston seal 18, which can improve the tension of the piston seal 18 when in use, extend the service life of the piston seal 18, prevent the piston seal 18 from deforming and loosening when in use, and improve the oil leakage prevention effect.

[0025] In another embodiment of this utility model, the oil filter pipe head 8 is welded to the heat dissipation section 9, the heat conduction ring 10 passes through the heat dissipation section 9, and there are two sets of deposition pipes 11. The heat dissipation section 9 and the heat conduction ring 10 are made of the same material when in use, which can achieve a better heat conduction effect.

[0026] In one embodiment of this utility model, the built-in piston 15 and the annular groove 17 are integrally formed. There are two sets of annular grooves 17. When in use, the annular grooves 17 can facilitate the embedding of the piston seal 18, which can improve the sealing performance of the built-in piston 15.

[0027] In another embodiment of this utility model, the push column 20 is movably connected to the fastening seat 19 by a spring 21. There are two sets of springs 21. One end of the push column 20 has a concave structure. The concave structure of the push column 20 can easily fit the piston seal 18 during use, making it convenient to squeeze the piston seal 18.

[0028] It should be noted that this utility model is a leak-proof oil cylinder structure for a mold. In use, the oil line connector 7 can be fixedly installed on the oil holes of the front end cover 5 and the rear end cover 6. Then, the oil pipeline is fixedly inserted into the oil filter head 8. The sealing ring 13 inside the oil filter head 8 provides a sealing effect. When the oil passes through the oil filter head 8, the conical filter screen 14 inside the oil filter head 8 filters the oil. The filtered impurities will slide into the sedimentation pipe 11 for storage. The filtered oil enters the cylinder body 2 through the front end cover 5 or the rear end cover 6, preventing impurities in the oil from damaging the inner lining of the cylinder body 2. Furthermore, when the oil passes through the heat dissipation section 9, the heat dissipation section... 9 can conduct heat to the oil, and the heat-conducting ring 10 can accelerate the heat conduction efficiency, which can have a certain cooling effect on the oil. The injected oil will pressurize the built-in piston 15 and push the built-in piston 15, thereby causing the built-in piston 15 to drive the piston rod 16 to move. When in use, the fastening seat 19 can form outward pressure on the push column 20 through the elastic force of the spring 21, which can make the push column 20 push the piston seal 18, which can increase the tension of the piston seal 18 during use, extend the service life of the piston seal 18, prevent the piston seal 18 from deforming and loosening during use, and improve the oil leakage prevention effect, which is quite practical.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A leak-proof structure for a mold cylinder, comprising a mold body (1), characterized in that: The outer surfaces of both sides of the mold body (1) are detachably connected to the cylinder body (2). The front end of the cylinder body (2) is fixedly connected to the front end of the cylinder body (2), and the rear end of the cylinder body (2) is fixedly connected to the rear end of the cylinder body (2). The upper outer surfaces of the front end of the cylinder body (5) and the rear end of the cylinder body (6) are detachably connected to the oil circuit connector (7). One end of the oil circuit connector (7) is fixedly connected to the oil filter pipe head (8). The middle part of the oil filter pipe head (8) is provided with a heat dissipation section (9). The outer wall of the heat dissipation section (9) is provided with a heat conduction ring (10). The outer wall of the oil filter pipe head (8) is fixedly connected to the sedimentation pipe (11). One end of the sedimentation pipe (11) is detachably connected to the sealing cap (12). The inner wall of the oil filter pipe head (8) is fixedly connected to a sealing ring (13) and a conical filter screen (14). The sealing ring (13) is located above the conical filter screen (14).

2. The oil cylinder anti-leakage structure for a mold according to claim 1, characterized in that: The mold body (1) has a mold cavity (3) in the middle. The bottom plate (4) is detachably connected to the outer surface of the lower end of the mold body (1). The cylinder body (2) is movably connected to an internal piston (15). A piston rod (16) is fixedly connected to the outer surface of one end of the internal piston (15).

3. The oil leakage prevention structure for a mold cylinder according to claim 2, characterized in that: The outer wall of the built-in piston (15) is provided with an annular groove (17). A piston seal (18) and a fastening seat (19) are provided in the middle of the annular groove (17). The fastening seat (19) is located on one side of the piston seal (18). A pusher (20) is provided in the middle of the fastening seat (19). A spring (21) is provided between the pusher (20) and the fastening seat (19).

4. The oil leakage prevention structure for a mold cylinder according to claim 1, characterized in that: The oil filter head (8) is welded to the heat dissipation section (9), the heat conduction ring (10) passes through the heat dissipation section (9), and there are two sets of deposition tubes (11).

5. The oil leakage prevention structure for a mold cylinder according to claim 3, characterized in that: The built-in piston (15) and the annular groove (17) are integrally formed, and there are two sets of the annular groove (17).

6. The oil cylinder anti-leakage structure for a mold according to claim 3, characterized in that: The push column (20) is movably connected to the fastening seat (19) via springs (21). There are two sets of springs (21), and one end of the push column (20) has a concave structure.

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