Air control reversing valve quick die change stamping equipment
By utilizing hydraulic arms and adjustment devices in a pneumatically controlled directional valve-based rapid die-changing stamping equipment, the problem of time-consuming and labor-intensive die replacement in traditional stamping equipment has been solved, enabling rapid die replacement and improved production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGZHOU HUAYUE HEAVY STEAM HYDRAULIC MASCH CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-14
AI Technical Summary
In traditional stamping equipment, changing the mold requires a large number of tools to tighten and loosen bolts and nuts, resulting in a significant waste of manpower and time, and reduced production efficiency.
The pneumatically controlled directional valve-based rapid die-changing stamping equipment uses dies with different cavities set on the top surface of the gear plate, and utilizes hydraulic arms and adjustment devices to achieve rapid die replacement, avoiding a complex disassembly process.
This enabled rapid mold changes, reduced manpower and time costs, and improved production efficiency.
Smart Images

Figure CN224487320U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping equipment technology, and in particular to a pneumatically controlled directional valve for quick die changing stamping equipment. Background Technology
[0002] Pneumatic directional control valves are directional control valves that use compressed air to control the direction of fluid flow. They are widely used in pneumatic control systems. Quick mold change stamping equipment is a device designed to significantly shorten mold changeover time in manufacturing equipment.
[0003] In traditional stamping equipment, the molds are mostly fastened to the hydraulic press platform using multiple evenly distributed bolts. Because a large number of tools are needed to tighten and loosen the bolts and nuts inside the mold multiple times when changing the mold, it causes a lot of manpower and time to be wasted and reduces production efficiency. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a pneumatically controlled reversing valve for quick mold changing stamping equipment. It aims to improve the problem that in traditional stamping equipment, molds are mostly fastened to the hydraulic press platform using multiple evenly distributed bolts. Because a large number of tools are needed to tighten and loosen the bolts and nuts inside the mold multiple times when changing molds, it consumes a lot of manpower and time and reduces production efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatically controlled directional valve quick-change stamping device, comprising a worktable, a top plate fixedly connected to the top of the worktable, a hydraulic press fixedly connected to the bottom of the top plate, a hydraulic arm provided at the output end of the hydraulic press, a main shaft fixedly connected to the upper part of the worktable, a geared disc rotatably connected to the outer wall near the bottom of the main shaft, a light shaft provided on the top surface of the geared disc, a turntable provided at the end of the light shaft away from the geared disc, a first mold body and a second mold body slidably connected to the outer wall of the light shaft, the second mold body being located on the upper surface of the geared disc, the first mold body being above the second mold body, an adjusting screw provided on the side of the first mold body away from the main shaft, an adjusting mechanism provided on one side of the first mold body, a mounting hole provided on the top of the first mold body, and an adjusting device and a locking device provided on the upper part of the worktable.
[0006] By adopting the above technical solution, using molds with different cavities set on the top surface of the gear plate, the hydraulic arm retracts from the hole of the first mold body into the hydraulic press. Different molds can be replaced by rotating the adjustment device, thereby avoiding complex disassembly. This improves the problem that in traditional stamping equipment, molds are mostly fastened to the hydraulic press platform with multiple evenly distributed bolts. When changing molds, a large number of tools are needed to tighten and loosen the bolts and nuts in the mold multiple times, which causes a lot of manpower and time consumption and reduces production efficiency.
[0007] Preferably, the adjusting device includes an adjusting gear, an internal gear shaft is rotatably connected to the adjusting gear, the gear shaft is fixedly connected to the upper part of the worktable, a rotating handle is provided on the top of the adjusting gear, and the tooth ends of the adjusting gear can mesh with the tooth ends of the gear disc.
[0008] Preferably, the locking device includes a locking bracket, which is fixedly connected to the upper part of the workbench. A connecting shaft is provided at the end of the locking bracket away from the workbench. A locking handle is rotatably connected to the outer wall of the connecting shaft. A locking pin is provided at the bottom of the end of the locking handle near the gear plate. A positioning hole is provided inside the gear plate, and the locking pin is located inside the positioning hole.
[0009] Preferably, the workbench is equipped with a vacuum cleaner, the input end of the vacuum cleaner is equipped with a vacuum cleaner pipe, the end of the vacuum cleaner pipe away from the vacuum cleaner is equipped with a grip nozzle, and the output end of the vacuum cleaner is equipped with a collection chamber.
[0010] Preferably, a fixed bracket is fixedly connected to the bottom of the top plate, the rear of the fixed bracket is fixedly connected to the outer wall of the workbench, and a vacuum cleaner pipe is placed inside the fixed bracket.
[0011] Preferably, a fixed bracket is fixedly connected to the top outer side of the workbench, and a vacuum cleaner pipe is placed on the outer wall of the fixed bracket.
[0012] Preferably, a collection trough is provided on the upper part of the workbench, and the collection trough is connected to the input end of the vacuum cleaner through a pipe.
[0013] Preferably, the adjustment mechanism includes an adjustment screw, an insertion hole is provided on the side of the first mold body away from the main shaft, the insertion hole communicates with the mounting hole, a quick-release groove is provided at the bottom of the hydraulic arm, and the adjustment screw can be inserted into the quick-release groove.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, molds with different cavities are provided on the top surface of the gear plate. After the hydraulic arm retracts from the hole of the first mold body into the hydraulic press, different molds can be replaced by rotating the adjustment device. This avoids complicated disassembly and improves the problem that in traditional stamping equipment, molds are mostly fastened to the hydraulic press platform with multiple evenly distributed bolts. Because a large number of tools are needed to tighten and loosen the bolts and nuts in the mold multiple times when changing molds, it causes a lot of manpower and time consumption and reduces production efficiency.
[0016] 2. In this utility model, a vacuum cleaner is installed inside the workbench, and a collection trough is opened on the workbench. Small waste materials generated during the stamping process can be cleaned up in time with the vacuum cleaner pipe, so as to avoid waste materials remaining on the mold and affecting the service life of the mold, thereby playing a role in protecting the mold. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of a pneumatically controlled reversing valve quick-change stamping equipment proposed in this utility model;
[0018] Figure 2 This is a partial three-dimensional structural diagram of a pneumatically controlled reversing valve quick-change stamping device proposed in this utility model;
[0019] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;
[0020] Figure 4 This is a front view structural diagram of a pneumatically controlled reversing valve quick-change stamping equipment proposed in this utility model.
[0021] Legend:
[0022] 1. Spindle; 2. Turntable; 3. Optical axis; 4. Mounting hole; 5. Adjusting screw; 6. Worktable; 7. Gear plate; 8. Adjusting gear; 9. Gear shaft; 10. Rotating handle; 11. Positioning hole; 12. Locking bracket; 13. Connecting shaft; 14. Locking handle; 15. Hydraulic arm; 16. Hydraulic press; 17. First mold body; 18. Second mold body; 19. Hole; 20. Grip nozzle; 21. Vacuum cleaner pipe; 22. Fixed bracket; 23. Quick release slot; 24. Collection slot; 25. Locking pin; 26. Top plate. Detailed Implementation
[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] Reference Figures 1-4This utility model provides an embodiment of a pneumatically controlled reversing valve quick-change stamping device, including a worktable 6. A top plate 26 is fixedly connected to the top of the worktable 6, and a hydraulic press 16 is fixedly connected to the bottom of the top plate 26. A hydraulic arm 15 is provided at the output end of the hydraulic press 16. A main shaft 1 is fixedly connected to the upper part of the worktable 6. A gear 7 is rotatably connected to the outer wall of the main shaft 1 near the bottom. A light shaft 3 is provided on the top surface of the gear 7. A turntable 2 is provided at the end of the light shaft 3 away from the gear 7. A first mold body 17 is slidably connected to the outer wall of the light shaft 3. A second mold body 18 is provided at the bottom of the first mold body 17. The second mold body 18 is located on the upper surface of the gear 7. An adjustment mechanism is provided on the side of the first mold body 17 away from the main shaft 1. An installation hole 4 is opened on the top of the first mold body 17. An adjustment device and a locking device are provided on the upper part of the worktable 6.
[0025] Specifically, the workbench 6 supports and fixes the entire device. The top plate 26 connects the workbench 6 to fix the hydraulic press 16. The hydraulic press 16 controls the extension or retraction of the hydraulic arm 15. The hydraulic arm 15 transmits the pressure generated by the hydraulic press 16 to the first mold body 17. The main shaft 1 causes the gear plate 7 to rotate around the center of the cross-section of the main shaft 1. The gear plate 7 rotates the first mold body 17 and the second mold body 18, aligning the first mold body 17 with the hydraulic arm 15 for different cavities, thus achieving mold changing. The optical shaft 3 connects to and supports the turntable 2, and also restricts the rotation of the first mold body 17, thereby reducing mold offset. The first mold 17 and the second mold body 18 can form a complete stamping die cavity. The top of the first mold body 17 has a mounting hole 4 for the hydraulic arm 15 to extend and retract into the interior. The turntable 2 has a hole 19 inside, through which the hydraulic arm 15 can directly contact the first mold body 17. By setting molds with different cavities on the top surface of the gear plate 7, after the hydraulic arm 15 retracts from the mounting hole 4 of the first mold body 17 into the hydraulic press 16, different molds can be replaced by rotating the adjustment device. This avoids complicated disassembly and improves the problem that in traditional stamping equipment, most molds are fastened to the hydraulic press 16 platform with multiple evenly distributed bolts. When changing molds, a large number of tools are needed to tighten and loosen the bolts and nuts inside the molds in multiple ways, which causes a lot of manpower and time consumption and reduces production efficiency.
[0026] Reference Figures 1-2 The adjustment device includes an adjustment gear 8, and a gear shaft 9 is rotatably connected inside the adjustment gear 8. The gear shaft 9 is fixedly connected to the upper part of the workbench 6. A rotating handle 10 is provided on the top of the adjustment gear 8. The tooth tip of the adjustment gear 8 can mesh with the tooth tip of the gear disk 7.
[0027] Specifically, by adjusting the meshing of the teeth of gear 8 and gear disk 7, the rotation of gear 8 can drive the rotation of gear disk 7. Gear shaft 9 can make gear disk 7 rotate around the center of the cross section of gear shaft 9. Turning handle 10 can transmit the rotational power output by hand to the rotation of gear 8. The adjustment device can quickly adjust the position of the mold.
[0028] Reference Figure 3 The locking device includes a locking bracket 12, which is fixedly connected to the upper part of the workbench 6. A connecting shaft 13 is provided at the end of the locking bracket 12 away from the workbench 6. A locking handle 14 is rotatably connected to the outer wall of the connecting shaft 13. A locking pin 25 is provided at the bottom of the end of the locking handle 14 near the gear plate 7. A positioning hole 11 is provided inside the gear plate 7, and the locking pin 25 is located inside the positioning hole 11.
[0029] Specifically, the locking bracket 12 can support the connecting shaft 13, the connecting shaft 13 can support the locking handle 14, and the positioning hole 11 inside the gear plate 7 can cooperate with the locking pin 25 to lock the gear plate 7.
[0030] Reference Figure 2 The turntable 2 has a hole 19 inside, through which the hydraulic arm 15 can be connected to the first mold body 17.
[0031] Specifically, the hole 19 allows the hydraulic arm 15 to be connected to the first mold body 17, while also reducing the weight of the turntable 2 and making it easier to rotate the gear plate 7.
[0032] Reference Figure 1 The workbench 6 is equipped with a vacuum cleaner. The vacuum cleaner has a vacuum cleaner pipe 21 at its input end and a grip nozzle 20 at the end of the vacuum cleaner pipe 21 away from the vacuum cleaner. The vacuum cleaner has a collection chamber at its output end.
[0033] Specifically, the outer diameter of the grip nozzle 20 is larger than the diameter of the pipe, and the outer wall of the handle has a groove. By gripping the nozzle 20, it can fit the palm more closely, thus making it more stable for the operator to hold. The vacuum cleaner pipe 21 can transport small waste materials. Through the negative pressure generated by the vacuum cleaner, and because the vacuum cleaner pipe 21 is connected to the input end of the vacuum cleaner, the small waste materials are sucked into the vacuum cleaner and collected in the collection chamber at the output end of the vacuum cleaner.
[0034] Reference Figure 1 The bottom of the top plate 26 is fixedly connected to a fixed bracket 22, the rear of the fixed bracket 22 is fixedly connected to the outer wall of the workbench 6, and a vacuum cleaner pipe 21 is placed inside the fixed bracket 22.
[0035] Specifically, the fixed bracket 22 can be used to place the vacuum cleaner pipe 21 and prevent the vacuum cleaner pipe 21 from getting tangled when changing the mold.
[0036] Reference Figure 2 A collection tank 24 is provided on the upper part of the workbench 6, and the collection tank 24 is connected to the input end of the vacuum cleaner through a pipe.
[0037] Specifically, the collection tank 24 is connected to the input end of the vacuum cleaner, which allows the vacuum cleaner to suck up the waste in the collection tank 24 for centralized processing.
[0038] Reference Figure 2 The adjustment mechanism includes an adjustment screw 5. The first mold body 17 has an insertion hole on the side away from the main shaft 1, which is connected to the mounting hole 4. The bottom of the hydraulic arm 15 has a quick release groove 23, and the adjustment screw 5 can be inserted into the quick release groove 23.
[0039] Specifically, tightening the adjusting screw 5 can generate a compressive force on the hydraulic arm 15, which is used to fix the first mold body 17 and the hydraulic arm 15. The quick disassembly slot 23 can make the fixation more secure and prevent the first mold body 17 from suddenly separating from the hydraulic arm 15.
[0040] Working principle: During the die replacement process, the first die body 17 is connected to the hydraulic arm 15. The hydraulic press 16 operates to extend the hydraulic arm 15 at the output end to the die replacement position, so that the bottom surface of the first die body 17 contacts the top surface of the second die body 18. Rotating the adjusting screw 5 loosens the adjusting screw 5, thereby separating the first die body 17 from the hydraulic arm 15. The hydraulic arm 15 shortens to its origin. Pressing the locking handle 14 away from the gear plate 7 releases the locking handle 14 from the gear plate 7. Holding the rotating handle 10, rotating the gear shaft 9 causes the gear shaft 9 to drive the gear plate 7 to rotate. When the gear plate 7 rotates to the required die, pressing the locking handle 14 locks the gear plate 7, which serves to position and temporarily fix it. The hydraulic arm 15 extends through the hole 19 to the die replacement position, connecting the hydraulic arm 15 to the first die body 17. Tightening the adjusting screw 5 generates pressure, locking the first die body 17 onto the hydraulic arm 15.
[0041] 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 pneumatically controlled directional valve quick-change stamping equipment, comprising a worktable (6), characterized in that: The top of the workbench (6) is fixedly connected to a top plate (26), and the bottom of the top plate (26) is fixedly connected to a hydraulic press (16). The output end of the hydraulic press (16) is provided with a hydraulic arm (15). The upper part of the workbench (6) is fixedly connected to a main shaft (1). The main shaft (1) is rotatably connected to a gear plate (7) near the bottom outer wall. The top surface of the gear plate (7) is provided with an optical axis (3). The end of the optical axis (3) away from the gear plate (7) is provided with a turntable (2). The outer wall of the optical axis (3) is slidably connected to a first mold body (17). The bottom of the first mold body (17) is provided with a second mold body (18). The second mold body (18) is located on the upper surface of the gear plate (7). The side of the first mold body (17) away from the main shaft (1) is provided with an adjustment mechanism. The top of the first mold body (17) is provided with an installation hole (4). The upper part of the workbench (6) is provided with an adjustment device and a locking device.
2. The pneumatically controlled directional valve quick-change stamping equipment according to claim 1, characterized in that: The adjustment device includes an adjustment gear (8), and a gear shaft (9) is rotatably connected inside the adjustment gear (8). The gear shaft (9) is fixedly connected to the upper part of the workbench (6). A rotating handle (10) is provided on the top of the adjustment gear (8). The tooth end of the adjustment gear (8) can mesh with the tooth end of the gear disk (7).
3. The pneumatically controlled directional valve quick-change stamping equipment according to claim 1, characterized in that: The locking device includes a locking bracket (12), which is fixedly connected to the upper part of the workbench (6). A connecting shaft (13) is provided at one end of the locking bracket (12) away from the workbench (6). A locking handle (14) is rotatably connected to the outer wall of the connecting shaft (13). A locking pin (25) is provided at the bottom of the end of the locking handle (14) near the gear plate (7). A positioning hole (11) is provided inside the gear plate (7), and the locking pin (25) is located inside the positioning hole (11).
4. The pneumatically controlled directional valve quick-change stamping equipment according to claim 1, characterized in that: The turntable (2) has a hole (19) inside, and the hydraulic arm (15) can be connected to the first mold (17) through the hole (19).
5. The pneumatically controlled directional valve quick-change stamping equipment according to claim 1, characterized in that: The workbench (6) is equipped with a vacuum cleaner. The vacuum cleaner has a vacuum cleaner pipe (21) at its input end and a grip nozzle (20) at the end of the vacuum cleaner pipe (21) away from the vacuum cleaner. The vacuum cleaner has a collection chamber at its output end.
6. The pneumatically controlled directional valve quick-change stamping equipment according to claim 1, characterized in that: The bottom of the top plate (26) is fixedly connected to a fixed bracket (22), the rear of the fixed bracket (22) is fixedly connected to the outer wall of the workbench (6), and a vacuum cleaner pipe (21) is placed inside the fixed bracket (22).
7. A pneumatically controlled directional valve quick-change stamping equipment according to claim 5, characterized in that: A collection trough (24) is provided on the upper part of the workbench (6), and the collection trough (24) is connected to the input end of the vacuum cleaner through a pipe.
8. A pneumatically controlled directional valve quick-change stamping equipment according to claim 1, characterized in that: The adjustment mechanism includes an adjustment screw (5), and the first mold body (17) has an insertion hole on the side away from the main shaft (1). The insertion hole is connected to the mounting hole (4). The bottom of the hydraulic arm (15) has a quick release groove (23), and the adjustment screw (5) can be inserted into the quick release groove (23).