Quick die changing die with detachable die core

Abstract

The invention relates to the technical field of stamping dies, in particular to a quick die changing die with a detachable die core, which comprises a stamping device and a lower die, a fixing assembly is arranged on one side of a fixing frame, a cleaning assembly is arranged in the lower die, and a jacking assembly is arranged in the lower die; the fixing assembly comprises a two-way lead screw rotationally embedded in the fixing frame, the two-way lead screw is connected with two moving blocks through a ball nut pair, fixing blocks are fixedly connected to one sides of the outer surfaces of the two moving blocks, and clamping plates are fixedly connected to one sides of the outer surfaces of the two fixing blocks. Sealing rings are fixedly connected to one sides of the outer surfaces of the two groups of clamping plates, and the two groups of sealing rings are semicircular; the invention aims to provide the quick die-changing die with the detachable die core so as to solve the problems that the operation steps are tedious when the die core is replaced, chippings generated in the stamping process are not cleaned in time, and materials need to be manually taken out.

Description

Technical Field

[0001] This invention relates to the field of stamping die technology, specifically to a quick-change die with a detachable die core. Background Technology

[0002] The mold core is the core part of the mold. It is located in the center of the mold and is a key precision part used to mold products. It directly determines the shape, size and precision of the products. The existing fixed mold cores are often connected by drilling and bolts. When replacing the mold core, it is necessary to disassemble or tighten the bolts one by one. Not only are the operation steps cumbersome, but the hole positions also need to be precisely aligned. As a result, a single mold replacement usually takes several minutes or even longer. In addition, traditional bolt connections require drilling holes in the mold frame or mold core. Hole processing not only increases the mold manufacturing cost, but may also damage the structural integrity of the mold core. Meanwhile, during the stamping process, debris generated on the surface of parts, such as metal shavings and plastic burrs, tends to accumulate in the cavity of the lower die core. If not cleaned in time, it can lead to indentations, scratches, or even damage to the die core on the surface of subsequent products. Furthermore, operators need to use tools to pry the material inside the mold, which is not only inefficient but may also scratch the edges of the material due to improper operation, causing the material to deform. Summary of the Invention

[0003] The purpose of this invention is to provide a quick-change mold with a detachable mold core, so as to solve the problems mentioned above, such as cumbersome operation steps when changing the mold core, failure to clean up the debris generated during the stamping process in a timely manner, and the need for manual removal of materials.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a quick-change mold with a detachable mold core, comprising a stamping device and a lower mold, wherein a fixing component is provided on one side of the fixing frame, a cleaning component is provided inside the lower mold, and a lifting component is provided inside the lower mold; The fixing component includes a bidirectional lead screw, and the bidirectional lead screw is connected to two sets of moving blocks through ball nut pairs. Both sets of moving blocks are fixedly connected to clamping plates through fixing blocks, and a sealing ring is fixedly connected to one side of the outer surface of both sets of clamping plates. Both sets of sealing rings are semi-circular in shape. The cleaning assembly includes a first driving air rod, and a first air supply pipe is provided inside the first driving air rod. A first annular tube is provided inside the lower mold, and a plurality of first air outlet pipes are fixedly connected to the outer surface of the first annular tube. A first air outlet head is fixedly connected to the top of the outer surface of the plurality of first air outlet pipes. The end of the first air supply pipe away from the first driving air rod is located inside the first annular tube. The lifting assembly includes a second air supply pipe disposed inside the first driving air rod. The lower mold has a second annular tube disposed inside, and multiple second driving air rods are fixedly connected to the outer surface of the second annular tube. The output ends of the multiple second driving air rods are fixedly connected to sealing plates. The multiple sealing plates are all horizontally slidably embedded inside the lower mold. The end of the second air supply pipe away from the first driving air rod is disposed inside the second annular tube. A second pressure valve is disposed inside the second air supply pipe.

[0005] Preferably, a gear plate is fixedly connected to the output end of the first drive rod, and a limiting plate is fixedly connected to one side of the outer surface of the gear plate. The limiting plate is horizontally slidably embedded inside the fixed frame.

[0006] Preferably, a transmission rod is rotatably embedded inside the fixed frame, and one side of the outer surface of the transmission rod is fixedly connected to a bidirectional lead screw. A transmission gear is fixedly connected to the outer surface of the transmission rod, and the outer surface of the transmission gear meshes with the gear plate.

[0007] Preferably, a limiting rod is fixedly connected to one side of the outer surface of the fixed frame, and both sets of moving blocks are slidably embedded on the outer surface of the limiting rod.

[0008] Preferably, an air pump is fixedly connected to one side of the outer surface of the fixing frame, and an air inlet pipe is provided inside the air pump. The end of the air inlet pipe away from the air pump is located inside one of the clamping plates.

[0009] Preferably, the air pump has a hose inside, and the end of the hose away from the air pump is located inside the first drive rod.

[0010] Preferably, a mold core shaft is slidably embedded inside the lower mold, and a mold core is fixedly connected to the top of the outer surface of the mold core shaft.

[0011] Preferably, a sealing ring is fixedly connected to the top of the outer surface of each of the plurality of first air outlet heads, and a plurality of first air outlet pipes are disposed in the gap inside the lower mold, and a first pressure valve is disposed inside the first air supply pipe.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses multiple clamping plates to fix the mold core shaft, thereby fixing the mold core. One side of the sealing ring has an air inlet pipe inside, and the other end of the air inlet pipe is located inside the vacuum pump. When the clamping plates on both sides are closed, the sealing ring makes the clamping plates in the closed state relatively sealed. Then the vacuum pump draws air from the inside through the air inlet pipe. The vacuuming generates negative pressure, which can further adsorb the mold core shaft in a fixed position. Combined with the mechanical clamping force, a double fixation is formed to avoid the mold core from slightly shifting due to stamping, which would lead to product dimensional deviations. At the same time, the relatively sealed space can prevent external dust and oil from entering the cavity, and prevent debris from splashing during the stamping process.

[0013] 2. In this invention, when the vacuum pump continuously draws air from the outside and the clamping plate, the gas enters the interior of the first driving air rod through the hose. The incoming gas continuously pushes the output end of the first driving air rod to clamp, further stabilizing the clamping plate and preventing the mold core and mold core shaft from loosening during the stamping process, thus ensuring production continuity and maintaining a stable clamping force. When the gas pressure inside the first driving air rod exceeds the threshold of the first pressure valve in the first air supply pipe, the gas is delivered to the first annular pipe through the first air supply pipe. Subsequently, the gas is delivered through multiple first air outlet pipes and sprayed out through the first air outlet head, thereby removing metal chips and plastic residues generated during stamping and preventing the chips from abrading the mold core. At the same time, multiple first air outlet heads are equipped with sealing rings, and the first air outlet heads are located in the pores inside the lower mold to prevent chips from entering the lower mold.

[0014] 3. When the stamping process is completed and the mold core needs to be removed for replacement, the invention discharges all the gas inside the first driving air rod, thereby moving the clamping plate to disconnect the clamp. When all the gas inside the clamping plate is discharged, the pressure exceeds the threshold of the second pressure valve in the second air supply pipe, thus discharging a large amount of gas through the second air supply pipe. The gas is then transported to the second annular pipe through the second air supply pipe, and then into multiple second driving air rods through the second annular pipe. By pushing out the sealing plate connected to the output shaft of the second driving air rod, the stamped material is pushed out. Through the above technical solution, the residual gas in the first driving air rod pushes the second driving air rod to lift, preventing deformation caused by the forced peeling when the material is stuck together, and avoiding easy scratches to workers and materials when manually picking up the material. Moreover, the trigger threshold of the second pressure valve is greater than the trigger threshold of the first pressure valve, ensuring that the residual gas pressure does not reach the threshold during clamping, and the sealing plate will not be accidentally triggered to push out. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is one of the partial structural schematic diagrams of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a partial structural schematic diagram of the present invention (third one). Figure 6 This is a schematic diagram of the gear plate structure of the present invention; Figure 7 This is a schematic diagram of the internal structure of the lower mold of the present invention; Figure 8 This is a schematic diagram of the first air outlet structure of the present invention; Figure 9 This is a schematic diagram of the second drive air rod structure of the present invention.

[0016] In the diagram: 1. Stamping device; 2. Lower mold; 3. Fixing frame; 301. Two-way lead screw; 302. Moving block; 303. Fixing block; 304. Clamping plate; 305. Sealing ring; 306. Limiting rod; 4. Mold core; 401. Mold core shaft; 5. Air pump; 501. Air inlet pipe; 502. Hose; 6. First driving air rod; 601. Gear plate; 602. Limiting plate; 603. Transmission gear; 604. Transmission rod; 7. First air supply pipe; 701. First pressure valve; 702. First annular pipe; 703. First air outlet pipe; 704. First air outlet head; 705. Sealing ring; 8. Second air supply pipe; 801. Second annular pipe; 802. Second driving air rod; 803. Sealing plate; 804. Second pressure valve. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] See Figures 1 to 9As shown, this invention provides a quick-change mold with a detachable mold core, including a stamping device 1 and a lower mold 2. A fixing component is provided on one side of a fixing frame 3, a cleaning component is provided inside the lower mold 2, and a lifting component is provided inside the lower mold 2. The fixing component includes a bidirectional lead screw 301, and the bidirectional lead screw 301 is connected to two sets of moving blocks 302 through ball nut pairs. Both sets of moving blocks 302 are fixedly connected to clamping plates 304 through fixing blocks 303, and a sealing ring 305 is fixedly connected to one side of the outer surface of both sets of clamping plates 304. Both sets of sealing rings 305 are semi-circular in shape. A gear plate 601 is fixedly connected to the output end of the first driving air rod 6, and the gear... A limiting plate 602 is fixedly connected to one side of the outer surface of plate 601. The limiting plate 602 is horizontally slidably embedded inside the fixed frame 3. A transmission rod 604 is rotatably embedded inside the fixed frame 3. One side of the outer surface of the transmission rod 604 is fixedly connected to a two-way lead screw 301. A transmission gear 603 is fixedly connected to the outer surface of the transmission rod 604. The outer surface of the transmission gear 603 meshes with the gear plate 601. A limiting rod 306 is fixedly connected to one side of the outer surface of the fixed frame 3. Two sets of moving blocks 302 are slidably embedded on the outer surface of the limiting rod 306. A mold core shaft 401 is slidably embedded inside the lower mold 2. A mold core 4 is fixedly connected to the top of the outer surface of the mold core shaft 401. See Figures 1 to 6As shown, the mold core 4 is inserted into the lower mold 2. The vacuum pump 5 is turned on, drawing air from the outside. The gas enters the first drive rod 6 through the hose 502, thus moving the output end of the first drive rod 6. The output end of the first drive rod 6 is connected to a gear plate 601. The gear plate 601 slides within the fixing frame 3, and the fixing frame 3 limits its movement. The gear plate 601 meshes with the transmission gear 603. The movement of the gear plate 601 drives the transmission gear 603 to rotate. The transmission gear 603, through the connected transmission rod 604, drives the bidirectional lead screw 301 to rotate. The rotation of the bidirectional lead screw 301 drives the movement of multiple roller nut pairs connected to multiple moving blocks 302. The movement of the moving blocks 302 then moves multiple clamping plates 304. Multiple clamping plates 304 are used to fix the mold core shaft 401, thereby fixing the mold core 4. One side of the sealing ring 305 has an air inlet pipe 501 inside, and the other end of the air inlet pipe 501 is located inside the vacuum pump 5. When the clamping plates 304 on both sides are closed, the sealing ring 305 makes the clamping plates 304 in the closed state relatively sealed. Then the vacuum pump 5 draws air from the inside through the air inlet pipe 501. The vacuuming generates negative pressure, which can further attract the mold core shaft 401 to the fixed position. Combined with the mechanical clamping force, a double fixation is formed to avoid the mold core 4 from moving slightly due to stamping, which would lead to product dimensional deviations. At the same time, the relatively sealed space can prevent external dust and oil from entering the cavity, and prevent the debris generated during stamping from splashing. By replacing the mold core 4, the overall cost of the mold is reduced. Different materials can be stamped by simply replacing the mold core 4.

[0019] The cleaning assembly includes a first drive air rod 6, and a first air supply pipe 7 is provided inside the first drive air rod 6. A first annular pipe 702 is provided inside the lower mold 2, and multiple first air outlet pipes 703 are fixedly connected to the outer surface of the first annular pipe 702. A first air outlet head 704 is fixedly connected to the top of the outer surface of each of the multiple first air outlet pipes 703. The end of the first air supply pipe 7 away from the first drive air rod 6 is located inside the first annular pipe 702. A vacuum pump 5 is fixedly connected to one side of the outer surface of the fixing frame 3. The air pump 5 is provided with an air inlet pipe 501, and the end of the air inlet pipe 501 away from the air pump 5 is located inside one of the clamping plates 304; the air pump 5 is provided with a hose 502, and the end of the hose 502 away from the air pump 5 is located inside the first drive air rod 6; the top of the outer surface of the plurality of first air outlets 704 is fixedly connected with a sealing ring 705; the plurality of first air outlet pipes 703 are all located in the gap inside the lower mold 2; the first air delivery pipe 7 is provided with a first pressure valve 701. See Figures 2 to 8As shown, when the vacuum pump 5 continuously draws air from the outside and the clamping plate 304, the gas enters the interior of the first drive air rod 6 through the hose 502. The incoming gas continuously pushes the output end of the first drive air rod 6 to clamp, further stabilizing the clamping plate 304 and preventing the mold core 4 and mold core shaft 401 from loosening during the stamping process, ensuring production continuity and making the clamping force continuously stable. When the gas pressure inside the first drive air rod 6 exceeds the threshold of the first pressure valve 701 in the first air supply pipe 7, the gas will be delivered to the first annular pipe 702 through the first air supply pipe 7, and then the gas will be sprayed out through the first air outlet 704 through the delivery of multiple first air outlet pipes 703, thereby removing metal chips and plastic residues generated during stamping and preventing the chips from abrading the mold core 4. At the same time, the multiple first air outlets 704 are provided with sealing rings 705, and the first air outlets 704 are located in the gaps inside the lower mold 2 to prevent chips from entering the interior of the lower mold 2.

[0020] The lifting assembly includes a second air supply pipe 8 disposed inside the first driving air rod 6, a second annular pipe 801 disposed inside the lower mold 2, and a plurality of second driving air rods 802 fixedly connected to the outer surface of the second annular pipe 801. A sealing plate 803 is fixedly connected to the output end of the plurality of second driving air rods 802. The plurality of sealing plates 803 are all horizontally slidably embedded inside the lower mold 2. The end of the second air supply pipe 8 away from the first driving air rod 6 is disposed inside the second annular pipe 801. A second pressure valve 804 is disposed inside the second air supply pipe 8. See Figures 2 to 9 As shown, when the stamping is completed and the mold core 4 needs to be removed and replaced, all the gas inside the first drive air rod 6 is discharged, thereby moving the clamping plate 304 to disconnect the clamp. When all the gas inside the clamping plate 304 is discharged, the gas pressure transmitted from the air rod 6 exceeds the threshold of the second pressure valve 804 in the second air supply pipe 8, thereby discharging a large amount of gas through the second air supply pipe 8. The gas is then transported through the second air supply pipe 8 to the second annular pipe 801, and the gas is then transported through the second annular pipe 801 into multiple second drive air rods. Inside 802, the stamped material is ejected by pushing out the sealing plate 803 connected to the output shaft of the second drive air rod 802. Through the above technical solution, the residual air in the first drive air rod 6 is used to push the second drive air rod 802 to lift, preventing deformation caused by the forced peeling when the material is stuck together, and avoiding easy scratching of the staff and materials when manually picking up the material. In addition, the trigger threshold of the second pressure valve 804 is greater than the trigger threshold of the first pressure valve 701, ensuring that the residual air pressure does not reach the threshold when clamping, and the sealing plate 803 will not be accidentally triggered to eject.

[0021] Working principle: The mold core 4 is inserted into the lower mold 2. The vacuum pump 5 is turned on, drawing air from the outside. The gas enters the first drive rod 6 through the hose 502, thus moving the output end of the first drive rod 6. The output end of the first drive rod 6 is connected to a gear plate 601. The gear plate 601 slides within the fixed frame 3, which limits its movement. The gear plate 601 meshes with the transmission gear 603. The movement of the gear plate 601 drives the transmission gear 603 to rotate. The transmission gear 603, through the connected transmission rod 604, drives the bidirectional lead screw 301 to rotate. The rotation of the rotating block drives the moving block 302 connected by multiple roller nuts to move. The movement of the moving block 302 drives the movement of multiple clamping plates 304. The clamping plates 304 fix the mold core shaft 401 and thus fix the mold core 4. The sealing ring 305 on one side is provided with an air inlet pipe 501, and the other end of the air inlet pipe 501 is provided inside the vacuum pump 5. When the clamping plates 304 on both sides are closed, the sealing ring 305 makes the clamping plates 304 in the closed state relatively sealed. Then the vacuum pump 5 draws air from the inside through the air inlet pipe 501. The vacuuming generates negative pressure, which can further adsorb the mold core shaft 401 in a fixed position, forming a double fixation with the mechanical clamping force. When the gas pressure inside the first drive air rod 6 exceeds the threshold of the first pressure valve 701 in the first air supply pipe 7, the gas will be delivered to the first annular pipe 702 through the first air supply pipe 7, and then the gas will be sprayed out through the first air outlet 704 through the delivery of multiple first air outlet pipes 703, thereby removing metal chips and plastic residues generated by stamping and preventing the chips from wearing the mold core 4. When the stamping is completed and the mold core 4 needs to be removed and replaced, all the gas inside the first drive air rod 6 is discharged, thereby moving the clamping plate 304 to disconnect the clamp. When all the gas inside the clamping plate 304 is discharged, the gas pressure transmitted from the air rod 6 exceeds the threshold of the second pressure valve 804 in the second air supply pipe 8, thereby discharging a large amount of gas through the second air supply pipe 8. The gas is transported through the second air supply pipe 8 to the second annular pipe 801, and the gas is transported through the second annular pipe 801 into multiple second drive air rods 802. By pushing out the sealing plate 803 connected to the output shaft of the second drive air rod 802, the stamped material is pushed out.

[0022] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-change mold with a detachable mold core, comprising a stamping device (1) and a lower mold (2), characterized in that, A fixing component is provided on one side of the fixing frame (3), a cleaning component is provided inside the lower mold (2), and a lifting component is provided inside the lower mold (2); The fixing assembly includes a bidirectional lead screw (301), and the bidirectional lead screw (301) is connected to two sets of moving blocks (302) through ball nut pairs. Both sets of moving blocks (302) are fixedly connected to clamping plates (304) through fixing blocks (303). A sealing ring (305) is fixedly connected to one side of the outer surface of both sets of clamping plates (304). Both sets of sealing rings (305) are semi-circular in shape. The cleaning assembly includes a first driving air rod (6), and a first air supply pipe (7) is provided inside the first driving air rod (6). A first annular pipe (702) is provided inside the lower mold (2), and a plurality of first air outlet pipes (703) are fixedly connected to the outer surface of the first annular pipe (702). A first air outlet head (704) is fixedly connected to the top of the outer surface of the plurality of first air outlet pipes (703). The end of the first air supply pipe (7) away from the first driving air rod (6) is located inside the first annular pipe (702). The lifting assembly includes a second air supply pipe (8) disposed inside the first driving air rod (6), a second annular pipe (801) disposed inside the lower mold (2), and a plurality of second driving air rods (802) fixedly connected to the outer surface of the second annular pipe (801). A sealing plate (803) is fixedly connected to the output end of the plurality of second driving air rods (802). The plurality of sealing plates (803) are all horizontally slidably embedded inside the lower mold (2). The end of the second air supply pipe (8) away from the first driving air rod (6) is disposed inside the second annular pipe (801), and a second pressure valve (804) is disposed inside the second air supply pipe (8).

2. The quick-change mold with a detachable mold core according to claim 1, characterized in that, The output end of the first drive rod (6) is fixedly connected to a gear plate (601), and a limiting plate (602) is fixedly connected to one side of the outer surface of the gear plate (601). The limiting plate (602) is horizontally slidably embedded inside the fixing frame (3).

3. The quick-change mold with a detachable mold core according to claim 2, characterized in that, The fixed frame (3) is internally fitted with a transmission rod (604), and one side of the outer surface of the transmission rod (604) is fixedly connected to the bidirectional lead screw (301). The outer surface of the transmission rod (604) is fixedly connected to a transmission gear (603), and the outer surface of the transmission gear (603) meshes with the gear plate (601).

4. The quick-change mold with a detachable mold core according to claim 1, characterized in that, A limiting rod (306) is fixedly connected to one side of the outer surface of the fixed frame (3), and both sets of moving blocks (302) are slidably embedded on the outer surface of the limiting rod (306).

5. A quick-change mold with a detachable mold core according to claim 1, characterized in that, A vacuum pump (5) is fixedly connected to one side of the outer surface of the fixed frame (3), and an air inlet pipe (501) is provided inside the vacuum pump (5). The end of the air inlet pipe (501) away from the vacuum pump (5) is located inside one of the clamping plates (304).

6. A quick-change mold with a detachable mold core according to claim 5, characterized in that, The air pump (5) is equipped with a hose (502) inside, and the end of the hose (502) away from the air pump (5) is located inside the first drive rod (6).

7. A quick-change mold with a detachable mold core according to claim 1, characterized in that, The lower mold (2) is slidably fitted with a mold core shaft (401), and a mold core (4) is fixedly connected to the top of the outer surface of the mold core shaft (401).

8. A quick-change mold with a detachable mold core according to claim 1, characterized in that, A sealing ring (705) is fixedly connected to the top of the outer surface of multiple first air outlets (704), multiple first air outlet pipes (703) are set in the gap inside the lower mold (2), and a first pressure valve (701) is set inside the first air supply pipe (7).

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