A quick die changing device
By designing a quick mold changing device, the problem of needing to twist bolts when changing the master mold in existing hardware molds is solved by utilizing the rotation and sliding of the locking mechanism. This enables quick disassembly and installation of the mold and improves mold changing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINHONGXING (HUIZHOU) TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-07-14
Smart Images

Figure CN224487375U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hardware mold technology, specifically a quick mold changing device. Background Technology
[0002] Metal molds are used in industrial production to shape metal materials into parts or products of the required shape using various presses and special tools mounted on the presses. These special tools are collectively referred to as metal molds.
[0003] Chinese Patent CN214919743U discloses a hardware mold for convenient and quick mold changing, including a lower mold base and an upper mold base. The upper mold base is located above the lower mold base. A mounting plate is fixedly connected to the top of the lower mold base, and a female mold is fixedly mounted on the top of the mounting plate. The female mold has a hollow groove inside, and a movable push block is movably connected inside the hollow groove. A movable push rod is fixedly connected to one side of the movable push block. When the female mold needs to be replaced, by squeezing the pressing block, the movable push rod is pushed into the hollow groove, causing the movable push block to move to one side. This causes the translation block to move inside the movable groove, then the locking block separates from the locking groove. After separation, the female mold is pulled upwards, causing it to move upwards and its bottom to separate from the top of the mounting plate. Therefore, this device facilitates quick and easy replacement of the female mold during use.
[0004] However, although the aforementioned hardware molds that facilitate quick mold changing can separate the locking block from the slot through components such as pressing blocks and movable push rods, it still requires workers to twist multiple sets of bolts beforehand. This increases the operation steps and time costs of mold changing, reduces the efficiency of mold changing, and still falls short of the goal of quick mold changing. Utility Model Content
[0005] The purpose of this invention is to provide a quick mold changing device to solve the problem mentioned in the background art that, although the separation of the locking block and the locking slot can be achieved through components such as pressing blocks and movable push rods, it is still necessary for operators to twist multiple sets of bolts before this can be done.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A quick mold changing device includes: a press, a mounting plate fixedly mounted on the lower surface of the piston rod of the press, guide grooves on both sides of the mounting plate, guide blocks slidably mounted in the guide grooves, and a pressure mold fixedly mounted between two sets of guide blocks. Locking grooves are provided at both ends of the pressure mold. When the pressure mold drives the locking grooves to slide into the guide grooves and align with the positioning grooves, a locking mechanism can slide in. The locking mechanism is rotatably mounted at both ends of the mounting plate. The positioning grooves are located at both ends of the mounting plate and communicate with the guide grooves.
[0008] Preferably, the locking mechanism includes a handle, which is rotatably installed inside the docking block. The docking block is fixedly installed at both ends of the mounting plate. A U-shaped block is fixedly installed on the lower end of the outer surface of the handle. Sliding openings are provided on both sides of the U-shaped block. Rotary columns are slidably installed in the two sets of sliding openings. A pin is fixedly installed on one end of the outer surface of the rotary column.
[0009] Preferably, the pin is damped and slidably installed in the positioning groove, so that the pin can be pushed or pulled by the rotation of the handle to drive the pin through the positioning groove and slide into the locking groove, thereby locking the mold on the lower surface of the mounting plate.
[0010] Preferably, a handle is fixedly installed on the upper end of the outer surface of the rotating handle.
[0011] Preferably, one end of the handle has a communication port, so that the handle can be damped and slidably mounted on the outer surface of the semi-arc plate through the communication port.
[0012] Preferably, plastic clips are fixedly installed at both ends of the semi-arc plate. The plastic clips can be plastically squeezed into the limiting groove, and the limiting groove is opened at both ends of the communication port.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. Through the design of the press, mounting plate, die, locking groove, positioning groove, and locking mechanism, when replacing the die, the operator can press the locking mechanism inward to pull the locking end out from the locking grooves at both ends of the die, allowing it to slide into the positioning groove of the mounting plate. Then, the operator can pull the die through the guide blocks at both ends to slide it out from the guide groove of the mounting plate, thus achieving the disassembly of the die. During installation, the required die can be slid into the guide grooves at both ends of the mounting plate through the guide blocks at both ends. The mold is fully inserted into the mounting plate until the locking grooves at both ends of the mold are flush with and connected to the positioning grooves at both ends of the mounting plate. Then, the locking mechanism that was pressed inward can be rotated outward again, allowing the locking end of the locking mechanism to slide back into the locking groove from the positioning groove. This achieves the installation operation of locking the mold in the mounting plate. Moreover, the disassembly and installation process only requires pushing and pulling the locking mechanism, which greatly reduces the operation steps, saves mold changing time, and improves work efficiency.
[0015] 2. Through the design of the handle, rotating column, pin, semi-circular plate, plastic retaining cone, grip, and U-shaped block, when replacing the mold, the operator can press the grip inward to rotate the handle within the mating block. As the grip is pressed inward, it slides along the outer surface of the semi-circular plate through the connecting port, causing the limiting grooves on both sides of the connecting port to disengage from the outer surface of the plastic retaining cones fixed at both ends of the semi-circular plate. The rotating handle pushed inward can cause the U-shaped block fixed on the lower surface to flip outward. This allows the U-shaped block to pull the rotating column and pin, which are slidably installed inside, out of the locking grooves on both sides of the mold and into the positioning groove. After the pin is pulled out of the locking groove, the lateral locking force applied to the mold is released, allowing the operator to pull the mold through the guide blocks at both ends and slide it out of the guide groove of the mounting plate. This completes the disassembly process of the mold.
[0016] During installation, the required die can be slid into the guide grooves at both ends of the mounting plate using the guide blocks at both ends. Once the die is fully inserted, the locking grooves at both ends of the die align with the positioning grooves at both ends of the mounting plate. The guide blocks sliding into the guide grooves apply a vertical locking force to the die. Then, the inwardly pressed handle can be pulled outwards, causing the handle to rotate and rotate the U-shaped block at the lower end of the outer surface inwards. This rotated U-shaped block then drives the pin to slide from the positioning groove into the locking grooves on both sides of the die, thus applying a lateral locking force to the die. The force is applied until the U-shaped block drives the pin to slide completely into the locking groove. Then, the handle drives the connecting port to slide to the end of the semi-circular plate. This allows the connecting port to engage with the limiting grooves on both sides of the semi-circular plate, which are fixed to the plastic cones on both sides. This applies a limiting force to the rotation of the handle, preventing the pin from accidentally disengaging from the locking groove. This achieves the installation operation of locking the mold in the mounting plate. The mold can be easily disassembled and installed by pressing and pulling the handle. The whole process is simple and smooth, without complicated operating procedures or additional tools, which can significantly shorten mold change time and improve production efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the quick mold changing device of this utility model;
[0018] Figure 2 This is a schematic diagram of the mounting plate and the molding die of this utility model;
[0019] Figure 3 This is a schematic diagram of the locking mechanism of this utility model, showing its sliding insertion into the locking groove and its pulling out of the locking groove.
[0020] Figure 4 This is a schematic diagram of the locking mechanism of this utility model.
[0021] In the diagram: 1. Press; 101. Mounting plate; 102. Press mold; 103. Guide block; 104. Guide groove; 105. Locking groove; 106. Positioning groove; 2. Locking mechanism; 201. Connecting block; 202. Rotary handle; 203. Sliding port; 204. Rotating column; 205. Pin; 206. Connecting port; 207. Limiting groove; 208. Semi-arc plate; 209. Plastic taper; 210. Handle; 211. U-shaped block. Detailed Implementation
[0022] 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.
[0023] like Figures 1-3 As shown, this embodiment provides a quick mold changing device, including: a press 1, an mounting plate 101 fixedly installed on the lower surface of the piston rod of the press 1, guide grooves 104 are provided on both sides of the mounting plate 101, guide blocks 103 are slidably installed in the guide grooves 104, and a pressure mold 102 is fixedly installed between the two sets of guide blocks 103. Locking grooves 105 are provided at both ends of the pressure mold 102. When the pressure mold 102 drives the locking grooves 105 to slide into the guide grooves 104 and is flush with the positioning grooves 106, the locking mechanism 2 can slide in. The locking mechanism 2 is rotatably installed at both ends of the mounting plate 101. The positioning grooves 106 are opened at both ends of the mounting plate 101 and are connected to the guide grooves 104.
[0024] Through the design of the press 1, mounting plate 101, mold 102, locking groove 105, positioning groove 106, and locking mechanism 2, when replacing the mold 102, the operator can press the locking mechanism 2 inward to pull the locking end out from the locking groove 105 at both ends of the mold 102, allowing it to slide into the positioning groove 106 of the mounting plate 101. Then, the operator can pull the mold 102 through the guide blocks 103 at both ends to slide it out from the guide groove 104 of the mounting plate 101, thus realizing the disassembly of the mold 102. During installation, the required mold 102 can be slid into the mounting plate 101 through the guide blocks 103 at both ends. Within the guide grooves 104 at both ends, after the mold 102 is fully slid into the mounting plate 101, the locking grooves 105 at both ends of the mold 102 are flush with and connected to the positioning grooves 106 at both ends of the mounting plate 101. Then, the locking mechanism 2, which is pressed inward, can be rotated outward again, so that the locking end of the locking mechanism 2 can slide back into the locking groove 105 from the positioning groove 106. This realizes the installation operation of locking the mold 102 in the mounting plate 101. Moreover, the disassembly and installation process only requires pushing and pulling the locking mechanism 2, which greatly reduces the operation steps, saves mold changing time, and improves work efficiency.
[0025] like Figure 4 As shown, the locking mechanism 2 includes a handle 202, which is rotatably mounted inside a docking block 201. The docking block 201 is fixedly mounted on both ends of the mounting plate 101. A U-shaped block 211 is fixedly mounted on the lower end of the outer surface of the handle 202. Sliding openings 203 are provided on both sides of the U-shaped block 211. A rotating column 204 is slidably mounted in the two sets of sliding openings 203. A pin 205 is fixedly mounted on one end of the outer surface of the rotating column 204. The pin 205 is slidably mounted in the positioning groove 106 with damping, so that the pin 205 can push or pull the rotating column 204 by the rotation of the handle 202. The pin 205 slides into the locking groove 105 through the positioning groove 106, thereby locking the mold 102 on the lower surface of the mounting plate 101. The upper end of the outer surface of the rotating handle 202 is fixedly installed with a handle 210. One end of the handle 210 has a connecting port 206, so that the handle 210 is damped and slidably installed on the outer surface of the semi-arc plate 208 through the connecting port 206. Plastic clips 209 are fixedly installed at both ends of the semi-arc plate 208. The plastic clips 209 can be plastically squeezed into the limiting groove 207. The limiting groove 207 is opened at both ends of the connecting port 206.
[0026] Through the design of the rotating handle 202, rotating column 204, pin 205, semi-circular plate 208, plastic retaining cone 209, grip 210, and U-shaped block 211, when the mold 102 is replaced, the operator can press the grip 210 inward to rotate it within the mating block 201. During the inward pressing process, the grip 210 slides along the outer surface of the semi-circular plate 208 through the connecting port 206, causing the limiting grooves 207 on both sides of the connecting port 206 to disengage from the outer surface of the plastic retaining cone 209 fixedly installed at both ends of the semi-circular plate 208, and pushing the rotating component inward. The handle 202 can drive the U-shaped block 211 fixedly installed on the lower surface to flip outward, thereby enabling the outwardly flipped U-shaped block 211 to drive the internally sliding rotating column 204 and pin 205 to be pulled out from the locking grooves 105 opened on both sides of the mold 102 and stored in the positioning groove 106. After the pin 205 is pulled out from the locking groove 105, the lateral locking force applied to the mold 102 can be released, allowing the operator to pull the mold 102 through the guide blocks 103 at both ends to slide out from the guide groove 104 of the mounting plate 101, thus realizing the disassembly process of the mold 102.
[0027] During installation, the required mold 102 can be slid into the guide grooves 104 at both ends of the mounting plate 101 via the guide blocks 103 at both ends. Once the mold 102 is fully inserted into the mounting plate 101, the locking grooves 105 at both ends of the mold 102 are flush with and connected to the positioning grooves 106 at both ends of the mounting plate 101. The design of the guide blocks 103 sliding into the guide grooves 104 applies a vertical locking force to the mold 102. Then, the inwardly pressed handle 210 can be pulled outward again, causing the handle 202 to rotate inward, causing the U-shaped block 211 at the lower end of the outer surface to rotate inward. This rotated U-shaped block 211 then drives the pin 205 to slide from the positioning groove 106 into the locking grooves 105 on both sides of the mold 102, thus locking the mold 102. The applied lateral locking force, until the U-shaped block 211 drives the pin 205 to slide completely into the locking groove 105, can simultaneously cause the handle 210 to drive the connecting port 206 to slide to the end of the semi-arc plate 208. This allows the connecting port 206 to engage with the limiting grooves 207 on both sides of the internal side, which are fixedly installed on the plastic tapers 209 on both sides of the semi-arc plate 208. This applies a limiting force to the rotation of the handle 202, thus preventing the pin 205 from accidentally disengaging from the locking groove 105. This achieves the installation operation of locking the mold 102 in the mounting plate 101. Furthermore, the mold 102 can be easily disassembled and installed by pressing and pulling the handle 210. The whole process is simple and smooth, requiring no complicated operating procedures or additional tools, which can significantly shorten the mold change time and improve production efficiency.
[0028] Based on the above technical solution, the working steps of this solution are summarized as follows: When replacing the mold 102, the operator can press the handle 210 inward to rotate it within the mating block 201 via the rotating handle 202. During the inward pressing process, the handle 210 slides along the outer surface of the semi-arc plate 208 through the connecting port 206, causing the limiting grooves 207 on both sides of the connecting port 206 to disengage from the outer surface of the plastic tapers 209 fixedly installed at both ends of the semi-arc plate 208. The inwardly rotating handle 202 then causes the U-shaped block 211 fixedly installed on the lower surface to flip outward, thereby enabling the outwardly flipped U-shaped block... 211 drives the internally sliding rotating column 204 and pin 205 to be pulled out from the locking grooves 105 on both sides of the mold 102 and stored in the positioning groove 106. After the pin 205 is pulled out from the locking groove 105, the lateral locking force applied to the mold 102 is released, allowing the operator to pull the mold 102 through the guide blocks 103 at both ends and slide it out from the guide grooves 104 of the mounting plate 101. This realizes the disassembly of the mold 102. During installation, the required mold 102 can be slid into the guide grooves 104 at both ends of the mounting plate 101 through the guide blocks 103 at both ends. After the mold 102 is fully inserted into the mounting plate 101, the locking grooves 105 at both ends of the mold 102 are flush with and connected to the positioning grooves 106 at both ends of the mounting plate 101. The guide block 103 is slidably inserted into the guide groove 104 to apply a vertical locking force to the mold 102. Then, the inwardly pressed handle 210 can be pulled outward again, which allows the rotating handle 202 to drive the U-shaped block 211 at the lower end of the outer surface to flip inward. The inwardly flipped U-shaped block 211 can then drive the pin 205 to slide from the positioning groove 106 into the locking grooves 105 on both sides of the mold 102. The lateral locking force applied to the mold 102 is then applied until the U-shaped block 211 drives the pin 205 to slide completely into the locking groove 105. At the same time, the handle 210 drives the connecting port 206 to slide to the end of the semi-arc plate 208. The connecting port 206 then drives the limiting grooves 207 opened on both sides to snap onto the plastic tapers 209 fixedly installed on both sides of the semi-arc plate 208. This allows a limiting force to be applied to the rotation of the handle 202, thereby preventing the pin 205 from accidentally dislodging from the locking groove 105. This achieves the installation operation of locking the mold 102 in the mounting plate 101.
[0029] In summary, this device allows for easy disassembly and installation of the mold 102 by pressing and pulling the handle 210. The entire process is simple and smooth, requiring no complicated operating procedures or additional tools, which can significantly shorten mold change time and improve production efficiency.
[0030] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model 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 this utility model, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick mold changing device, characterized in that, include: A press (1) has a mounting plate (101) fixedly installed on the lower surface of the piston rod of the press (1). Guide grooves (104) are provided on both sides of the mounting plate (101). Guide blocks (103) are slidably installed in the guide grooves (104). A die (102) is fixedly installed between the two sets of guide blocks (103). Locking grooves (105) are provided at both ends of the die (102). When the die (102) drives the locking grooves (105) to slide into the guide grooves (104) and is flush with the positioning grooves (106), the locking mechanism (2) can slide in. The locking mechanism (2) is rotatably installed at both ends of the mounting plate (101). The positioning grooves (106) are opened at both ends of the mounting plate (101) and are connected to the guide grooves (104).
2. The quick mold changing device according to claim 1, characterized in that: The locking mechanism (2) includes a handle (202), which is rotatably installed in a docking block (201). The docking block (201) is fixedly installed at both ends of the mounting plate (101). A U-shaped block (211) is fixedly installed on the lower end of the outer surface of the handle (202). Sliding openings (203) are provided on both sides of the U-shaped block (211). Rotary columns (204) are slidably installed in the two sets of sliding openings (203). A pin (205) is fixedly installed on one end of the outer surface of the rotary column (204).
3. The quick mold changing device according to claim 2, characterized in that: The pin (205) is damped and slidably installed in the positioning groove (106), so that the pin (205) can be pushed or pulled by the rotation of the handle (202) to drive the pin (205) to slide into the locking groove (105) through the positioning groove (106), thereby locking the mold (102) on the lower surface of the mounting plate (101).
4. A quick mold changing device according to claim 2, characterized in that: A handle (210) is fixedly installed on the upper end of the outer surface of the rotating handle (202).
5. A quick mold changing device according to claim 4, characterized in that: The handle (210) has a communication port (206) at one end, so that the handle (210) can be damped and slidably mounted on the outer surface of the semi-arc plate (208) through the communication port (206).
6. A quick mold changing device according to claim 5, characterized in that: Plastic clips (209) are fixedly installed at both ends of the semi-arc plate (208). The plastic clips (209) can be plastically squeezed into the limiting groove (207). The limiting groove (207) is opened at both ends of the connecting port (206).