Oil press with quick lifting function

Abstract

This utility model relates to the field of hydraulic press technology and discloses a hydraulic press with rapid lifting function. It includes a support plate, a base plate fixedly connected to the upper center of the support plate, and support columns fixedly connected to the four corners of the base plate. A pressure plate is slidably connected to the outside of each support column, and a top plate is fixedly connected to the top of each support column. A hydraulic cylinder is fixedly connected to the center of the top plate, and the drive end of the hydraulic cylinder is fixedly connected to the upper center of the pressure plate. Protective plates are movably installed around the pressure plate. In this utility model, the protective plates form a closed-loop protective structure, shielding the processing area throughout the entire processing process. This effectively blocks flying debris from broken parts, physically isolating safety hazards and preventing accidental injury to operators. The collection ports around the support plate and base plate, in conjunction with the collection boxes between the side plates, allow impurities to fall directly into the collection boxes, preventing debris accumulation that could affect equipment operation or pollute the environment.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic press technology, and in particular to a hydraulic press with a rapid lifting function. Background Technology

[0002] A hydraulic press is a machine that uses special hydraulic oil as the working medium and a hydraulic pump as the power source. The hydraulic oil is forced through the hydraulic pipeline into the hydraulic cylinder by the force of the pump, so that the hydraulic cylinder can perform work to complete the processing of the workpiece. By controlling the hydraulic press, it can achieve rapid lifting and lowering during the processing.

[0003] In existing technologies, protective measures are generally not set up. When a hydraulic press processes an item, it generates a large pressure during the process. If the item is of poor quality, it is easy to be crushed and fly out of the hydraulic press's placement platform during processing, which threatens the personal safety of the workers. A small number of hydraulic presses have protective measures, but these need to be manually opened and closed, which is inconvenient to operate. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hydraulic press with rapid lifting function, which effectively avoids the problem of items breaking and injuring operators during processing.

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

[0006] A hydraulic press with rapid lifting function includes a support plate, a base plate fixedly connected to the upper center of the support plate, support columns fixedly connected to the four corners of the base plate, a pressure plate slidably connected to the outside of the support columns, a top plate fixedly connected to the top of the support columns, a hydraulic cylinder fixedly connected to the center of the top plate, the drive end of the hydraulic cylinder fixedly connected to the upper center of the pressure plate, protective plates movably arranged around the pressure plate, a slot opened on the inner side of the protective plate, and horizontally slidably connected to the two sides of the slot inside the protective plate, openings around the pressure plate, a first trapezoidal block arranged inside the opening, a first connecting plate fixedly connected to the outer side of the first trapezoidal block, the left and right sides of the first connecting plate slidably connected to the inner side of the pressure plate, and bolts threaded to the end of the first connecting plate, a plurality of second connecting plates fixedly connected to the lower side of the top plate, a second trapezoidal block for cooperating with the first trapezoidal block fixedly connected to the lower end of the second connecting plate, and a buffer assembly arranged at the lower end of the protective plate.

[0007] Furthermore, a movable rod is fixedly connected to the end of the stop block, a spring is provided on the outside of the movable rod, and the end of the movable rod passes through the inside of the protective plate.

[0008] Furthermore, adjustment grooves are provided at both ends of the outer side of the protective plate, and a lever is horizontally slidably connected inside the adjustment groove. The end of the lever is fixedly connected to the outside of the stop block.

[0009] Furthermore, the buffer assembly includes piston holes opened on the lower sides of both ends of the protective plate, and small air holes are opened on the outer side of the protective plate at the top of the piston holes.

[0010] Furthermore, the buffer assembly also includes a piston rod connected around the upper side of the support plate, and a soft piston is fixedly connected to the top of the piston rod, with the outer wall of the soft piston tightly fitted to the inner wall of the piston hole.

[0011] Furthermore, side plates are fixedly connected to the lower sides of both the left and right ends of the support plate, and a collection box is movably arranged on the opposite side of the side plates.

[0012] Furthermore, collection ports are provided around both the support plate and the base plate.

[0013] Furthermore, both ends of the protective plate are provided with sliding grooves, and a connecting rod is inserted inside the sliding groove. The upper end of the connecting rod is fixedly connected to the lower side of the top plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, a closed-loop protective structure is formed by the surrounding protective plates, which shields the processing area throughout the entire processing process. This effectively blocks flying debris from broken parts, physically isolating safety hazards and preventing accidental injury to operators. The linkage design of the protective plates with the first trapezoidal block and the stop block ensures that the protective plates remain closed when the pressure plate descends for processing and open synchronously when it rises for material replacement, achieving automated safety control of "processing is protection, material replacement is exposure," significantly improving operational safety.

[0016] 2. In this utility model, the first connecting plate can be slid by loosening the bolt, so that the first trapezoidal block can be put into the opening, realizing independent control of the lifting function of the protective plate; the operator can flexibly select the lifting part of the protective plate according to the size of the part, processing method and other requirements, which not only ensures the necessary protection range, but also provides operating space for loading and unloading of large parts or special processing scenarios. The collection ports around the bearing plate and the bottom plate, together with the collection box between the side plates, allow impurities generated during processing to fall directly into the collection box through the collection ports, avoiding the accumulation of debris in the processing area that affects the operation of the equipment or pollutes the environment. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of a hydraulic press with rapid lifting function proposed in this utility model;

[0018] Figure 2A schematic diagram of the pressure plate of a hydraulic press with rapid lifting function proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of a protective plate for a hydraulic press with a rapid lifting function proposed in this utility model;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 A schematic diagram of the piston hole of a hydraulic press with rapid lifting function proposed in this utility model;

[0022] Figure 6 This is a schematic diagram of the collection port of a hydraulic press with rapid lifting function proposed in this utility model.

[0023] Legend:

[0024] 1. Support plate; 2. Base plate; 3. Support column; 4. Pressure plate; 5. Top plate; 6. Hydraulic cylinder; 7. Protective plate; 8. Slide groove; 9. Connecting rod; 10. Slot; 11. Stop block; 12. Movable rod; 13. Spring; 14. Opening; 15. First trapezoidal block; 16. First connecting plate; 17. Bolt; 18. Second connecting plate; 19. Second trapezoidal block; 20. Side plate; 21. Collection box; 22. Collection port; 23. Piston hole; 24. Small air hole; 25. Piston rod; 26. Soft piston; 27. Adjustment groove; 28. Lever. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a hydraulic press with rapid lifting function, comprising a bearing plate 1, a base plate 2 fixedly connected to the upper center of the bearing plate 1, support columns 3 fixedly connected to the four corners of the base plate 2, a pressure plate 4 slidably connected to the outside of the support columns 3, a top plate 5 fixedly connected to the top of the support columns 3, a hydraulic cylinder 6 fixedly connected to the center of the top plate 5, the driving end of the hydraulic cylinder 6 fixedly connected to the upper center of the pressure plate 4, protective plates 7 movably arranged around the pressure plate 4, grooves 8 opened at both ends of the protective plates 7, connecting rods 9 passing through the grooves 8, the upper ends of the connecting rods 9 fixedly connected to the lower side of the top plate 5, slots 10 opened on the inner side of the protective plates 7, and stops 11 horizontally slidably connected to both sides of the slots 10 inside the protective plates 7, and the pressure plate 4 is provided with... An opening 14 is provided, and a first trapezoidal block 15 is provided inside the opening 14. A first connecting plate 16 is fixedly connected to the outside of the first trapezoidal block 15. The left and right sides of the first connecting plate 16 are slidably connected to the inside of the pressure plate 4. A bolt 17 is threadedly connected to the end of the first connecting plate 16. Multiple second connecting plates 18 are fixedly connected to the lower side of the top plate 5. A second trapezoidal block 19 for cooperating with the first trapezoidal block 15 is fixedly connected to the lower end of the second connecting plate 18. A movable rod 12 is fixedly connected to the end of the stop block 11. A spring 13 is provided outside the movable rod 12. The end of the movable rod 12 passes through the inside of the protective plate 7. An adjustment groove 27 is provided at both ends of the outer side of the protective plate 7. A lever 28 is horizontally slidably connected inside the adjustment groove 27. The end of the lever 28 is fixedly connected to the outside of the stop block 11.

[0027] Before processing, the operator places the part to be processed stably on the base plate 2 to ensure accurate positioning and facilitate subsequent processing. The protective plate 7 is in its initial state, covering the processing area and effectively blocking any flying debris that may be generated during processing. After the device is started, the hydraulic cylinder 6 begins to work, and its drive end extends downward, driving the pressure plate 4, which is fixedly connected to it, to descend steadily along the four corner supports 3. The supports 3 not only provide guidance for the pressure plate 4, ensuring its verticality during the lifting process, but also enhance the structural stability of the entire device. During the descent, the pressure plate 4 gradually approaches the base plate 2. The parts on the plate are finally processed through the cooperation of the pressure plate 4 and the base plate 2. As the pressure plate 4 descends, the first trapezoidal blocks 15 around the pressure plate 4 move downwards together with the pressure plate 4. During the movement, the inclined surfaces at both ends of the first trapezoidal blocks 15 gradually come into contact with the inclined surfaces of the stop blocks 11 on the inner side of the protective plate 7. As the descent continues, the first trapezoidal blocks 15 exert a squeezing force on the stop blocks 11 to both sides, forcing the stop blocks 11 to compress the springs 13 and slide towards both sides of the slot 10. When the first trapezoidal blocks 15 have completely moved below the stop blocks 11, the springs 13 release their elastic potential energy, pushing the stop blocks 11 to reset. At this time, the stop blocks 1... Positioned above the first trapezoidal block 15, the protective plate 7 maintains its shielding over the processing area throughout the process, ensuring processing safety. After processing, the hydraulic cylinder 6 drives the pressure plate 4 to rise, entering the parts replacement stage. During the rising process, the upper plane of the first trapezoidal block 15 contacts and cooperates with the lower plane of the stop block 11. Driven by the pressure plate 4, the protective plate 7 moves upward along the connecting rod 9 via the slide groove 8. After the protective plate 7 rises, the processing area is fully exposed, allowing operators to easily remove the processed parts and place new parts to be processed, significantly shortening the material changeover time and improving efficiency. To improve work efficiency, once the new part is placed, the hydraulic cylinder 6 continues to drive the pressure plate 4 to rise, and the protective plate 7 rises along with it. At this time, the second trapezoidal block 19 at the end of the second connecting plate 18 on the lower side of the top plate 5 gradually contacts the stop block 11. The inclined surface of the second trapezoidal block 19 pushes the stop block 11 to move to both sides again and compresses the spring 13. As the pressure plate 4 continues to rise, the lower side of the second trapezoidal block 19 fits tightly against the upper side of the first trapezoidal block 15. Under its own gravity, the protective plate 7 drives the stop block 11 to move downward over the first trapezoidal block 15, covering the processing area again and restoring the protective state.

[0028] Reference Figure 2 , Figure 5 and Figure 6The protective plate 7 has piston holes 23 on the lower sides of both ends. Small air holes 24 are provided on the outer side of the protective plate 7 at the top of the piston holes 23. The buffer assembly also includes piston rods 25 connected around the upper side of the support plate 1. A soft piston 26 is fixedly connected to the top of the piston rod 25. The outer wall of the soft piston 26 fits tightly against the inner wall of the piston hole 23. Side plates 20 are fixedly connected to the lower sides of both the left and right ends of the support plate 1. A collection box 21 is movably provided on the opposite side of the side plates 20. Collection ports 22 are provided around the support plate 1 and the bottom plate 2.

[0029] During the descent of the protective plate 7, as it approaches the support plate 1, the soft piston 26 at the top of the piston rod 25 around the upper perimeter of the support plate 1 gradually enters the piston holes 23 on the lower sides of both ends of the protective plate 7. The soft piston 26 fits tightly against the inner wall of the piston hole 23. As the protective plate 7 continues to descend, the soft piston 26 compresses the air in the piston hole 23, and the air is slowly discharged through the small air holes 24 on the outside of the protective plate 7, forming a stable air buffer force. This effectively slows down the descent speed of the protective plate 7, preventing it from having a hard impact with the support plate 1, reducing component wear, and extending the service life of the device. The first connecting plate 16 is then loosened. The bolt 17 of the part can push the first connecting plate 16 to slide inside the pressure plate 4, so that the first trapezoidal block 15 is retracted into the opening 14. At this time, during the process of the pressure plate 4 rising, the first trapezoidal block 15 no longer cooperates with the stop block 11, thereby avoiding the corresponding protective plate 7 from rising. The operator can select to lift the protective plate 7 according to the processing needs, which enhances the flexibility of operation. At the same time, the debris and other impurities generated during the processing can fall into the collection box 21 between the side plates 20 through the collection ports 22 around the bearing plate 1 and the bottom plate 2. During the subsequent centralized cleaning, the debris can be pushed into the collection port 22 to keep the processing environment clean.

[0030] Working principle: During processing, the part is placed on the base plate 2. The hydraulic cylinder 6 is activated to lower the pressure plate 4. The pressure plate 4 cooperates with the base plate 2 to process the part. The protective plate 7 provides protection from all sides to prevent the part from breaking and flying, thus avoiding injury to the operator. As the pressure plate 4 descends, the first connecting plate 16 drives the first trapezoidal block 15 to move downward. During the downward movement of the first trapezoidal block 15, the inclined surfaces at both ends of the first trapezoidal block 15 gradually cooperate with the inclined surfaces of the stop block 11, squeezing it to both sides and pressing it down. The spring 13 is compressed, causing the first trapezoidal block 15 to move below the stop 11. As the first trapezoidal block 15 passes between the two stops 11, the spring 13 pushes the stop 11 back to its original position. After processing is completed, the hydraulic cylinder 6 drives the pressure plate 4 to rise. During the rising process, the first trapezoidal block 15 gradually contacts the lower side of the stop 11. At this time, the upper plane of the first trapezoidal block 15 mates with the lower plane of the stop 11, thereby driving the protective plate 7 to move upward. At this time, the operator can remove the processed part and place a new part to be processed. After the part is placed, the hydraulic cylinder 6 continues to drive the pressure plate 4 upward, and simultaneously drives the protective plate 7 upward, causing the stop block 11 to gradually contact the second trapezoidal block 19. The second trapezoidal block 19 contacts the inclined surface of the stop block 11, thereby pushing the stop block 11 to move to both sides. Finally, the lower side of the second trapezoidal block 19 is in close contact with the upper side of the first trapezoidal block 15. At this time, the weight of the protective plate 7 drives the stop block 11 to move downward over the first trapezoidal block 15, thereby covering the processing area. Then, the hydraulic cylinder 6 drives the pressure plate 4 downward to process the part. As the protective plate 7 descends to the upper side of the support plate 1, the piston rod 25 and the soft piston 26 gradually enter the interior of the piston hole 23. The soft piston 26 squeezes the air inside the piston hole 23 and discharges it through the small air hole 24, forming a buffer to prevent the protective plate 7 from directly impacting the support plate 1. The first connecting plate 16 can drive the first trapezoidal block 15 into the opening 14, thereby preventing the protective plate 7 from rising during the rise of the pressure plate 4. During use, one or more protective plates 7 can be selected to be raised or lowered as needed.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 hydraulic press with rapid lifting function, characterized in that, The system includes a support plate (1), a base plate (2) fixedly connected to the upper center of the support plate (1), support columns (3) fixedly connected to the four corners of the base plate (2), pressure plates (4) slidably connected to the outside of the support columns (3), a top plate (5) fixedly connected to the top of the support columns (3), a hydraulic cylinder (6) fixedly connected to the center of the top plate (5), the driving end of the hydraulic cylinder (6) fixedly connected to the upper center of the pressure plate (4), protective plates (7) movably arranged around the pressure plate (4), a slot (10) is provided on the inner side of the protective plate (7), and horizontal sliding connections are provided on both sides of the slot (10) inside the protective plate (7). The stop block (11) and the pressure plate (4) are provided with openings (14) on all four sides. A first trapezoidal block (15) is provided inside the opening (14). A first connecting plate (16) is fixedly connected to the outside of the first trapezoidal block (15). The left and right sides of the first connecting plate (16) are slidably connected to the inside of the pressure plate (4). A bolt (17) is threadedly connected to the end of the first connecting plate (16). A plurality of second connecting plates (18) are fixedly connected to the lower side of the top plate (5). A second trapezoidal block (19) for cooperating with the first trapezoidal block (15) is fixedly connected to the lower end of the second connecting plate (18). A buffer assembly is provided at the lower end of the protective plate (7).

2. A hydraulic press with rapid lifting function according to claim 1, characterized in that: The end of the stop (11) is fixedly connected to a movable rod (12), and a spring (13) is provided on the outside of the movable rod (12). The end of the movable rod (12) passes through the inside of the protective plate (7).

3. The oil press with a quick lifting function according to claim 2, characterized in that: The protective plate (7) has adjustment grooves (27) at both ends on the outer side. A lever (28) is horizontally slidably connected inside the adjustment groove (27). The end of the lever (28) is fixedly connected to the outside of the stop block (11).

4. The oil press with a quick lifting function according to claim 1, characterized in that: The buffer assembly includes piston holes (23) on the lower sides of both ends of the protective plate (7), and small air holes (24) are provided on the outer side of the protective plate (7) at the top of the piston holes (23).

5. The oil press with a quick lifting function according to claim 1, characterized in that: The buffer assembly also includes a piston rod (25) connected around the upper side of the support plate (1). A soft piston (26) is fixedly connected to the top of the piston rod (25). The outer wall of the soft piston (26) fits tightly against the inner wall of the piston hole (23).

6. The oil press with a quick lifting function according to claim 1, characterized in that: Side plates (20) are fixedly connected to the lower sides of both the left and right ends of the bearing plate (1), and a collection box (21) is movably arranged on the opposite side of the side plates (20).

7. A hydraulic press with rapid lifting function according to claim 6, characterized in that: Collection ports (22) are provided around both the support plate (1) and the bottom plate (2).

8. A hydraulic press with rapid lifting function according to claim 1, characterized in that: The protective plate (7) has grooves (8) at both ends, and a connecting rod (9) is inserted inside the groove (8). The upper end of the connecting rod (9) is fixedly connected to the lower side of the top plate (5).

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