Die-casting die replacing device
By combining the coordinated operation of the dual-station slide rail and translational replacement structure with hydraulic movement and heating devices, the problem of long replacement time in traditional die casting molds is solved, enabling rapid mold replacement and preheating, thereby improving production efficiency and casting quality.
Patent Information
- Application Number
- CN202520577736.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Traditional die-casting molds are time-consuming and complex to change, resulting in low production efficiency, uneven mold temperature affecting casting quality, low equipment utilization, and high production costs.
It adopts a dual-station slide rail structure and a translational replacement structure, combined with hydraulic movement and heating devices, to achieve rapid mold replacement and preheating. Clamping, locking and limiting devices ensure stable alternation of molds on the die-casting machine.
It significantly shortens mold changeover time, improves production efficiency, reduces downtime, ensures mold temperature uniformity, and enhances equipment utilization and casting quality.
Smart Images

Figure CN223916626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of die casting mold technology, and in particular to a device for changing die casting molds. Background Technology
[0002] In the die-casting production process, mold replacement is a critical step that directly affects production efficiency and product quality. Traditional die-casting mold replacement requires machine shutdown for disassembly and reinstallation, which is time-consuming and complex, resulting in low production efficiency. At the same time, when replacing the mold, the new mold often needs to be reheated, which not only prolongs the production preparation time but may also lead to uneven mold temperature, affecting the quality of the castings. Furthermore, due to the long mold replacement time, the die-casting machine is in a downtime state during the mold replacement period, resulting in low equipment utilization and high production costs. Utility Model Content
[0003] In view of this, the main objective of this utility model is to solve one of the above-mentioned problems.
[0004] This utility model provides a die-casting mold replacement device, including: a die-casting machine, a dual-station slide rail structure, a translational replacement structure, and a mold; the die-casting machine includes a molten nozzle and a base; the translational replacement structure is disposed on the top of the base, the dual-station slide rail structure is disposed on the top of the translational replacement structure, and the mold is placed on the dual-station slide rail structure; the dual-station slide rail structure includes a first slide rail, a second slide rail, two slide tables, two mold seats, and two locking structures; the first slide rail and the second slide rail are parallel to each other and are both disposed on the top of the translational replacement structure, the two slide tables are slidably connected to the first slide rail and the second slide rail respectively, the top of each of the two slide tables is connected to the mold seat, the mold is placed on the top of the mold seat, and the two mold seats are respectively located on the first slide rail and the second slide rail via the slide tables. The mold base slides back and forth on the second slide rail, and the locking structure is used to lock the position of the mold base. The translation replacement structure includes a third slide rail, a translation stage, a hydraulic moving structure, and a limiter. The third slide rail is located on the top of the base, and the translation stage is slidably connected to the third slide rail. One end of the hydraulic moving structure is connected to the translation stage, and the other end of the hydraulic moving structure is connected to the base. The limiter is located on the left side of the top of the base and is used to limit the degree to which the translation stage slides to the left. The translation stage slides left and right on the third slide rail via the hydraulic moving structure. When the die-casting machine needs to replace the mold located on the second slide rail, the hydraulic moving structure pushes the translation stage to move until the sprue of the mold on the second slide rail is directly below the molten injection nozzle of the die-casting machine.
[0005] Furthermore, the mold base includes a clamping structure, and the mold is fixed to the top of the mold base by the clamping structure. The clamping structure includes two clamping columns, a plurality of first hydraulic cylinders, and two clamping blocks. The clamping columns are provided on both the left and right sides of the mold base. The clamping blocks are connected to the clamping columns by the first hydraulic cylinders, and the mold is located between the two clamping blocks.
[0006] Furthermore, the locking structure includes a bolt movable groove, a bolt, and several locking holes; the bolt movable groove is disposed at the bottom of the clamping column, the bolt is disposed in the bolt movable groove, the bolt is L-shaped, one end of the bolt extends laterally out of the bolt movable groove, the other end of the bolt extends downward out of the bolt movable groove, and several locking holes are evenly distributed on the top of the translation stage, with the bolt movable groove and the locking holes corresponding to each other.
[0007] Furthermore, the hydraulic moving structure includes a second hydraulic cylinder and a fixed base; the fixed base is disposed on the top right side of the base, one end of the second hydraulic cylinder is connected to the fixed base, and the other end of the second hydraulic cylinder is connected to the translation stage.
[0008] Furthermore, the mold base is provided with a heating structure, which includes a heating tube, a heat insulation layer, and a temperature control module; the heating tube is disposed inside the mold base, the heat insulation layer is disposed at the bottom and around the mold base, and the temperature control module is disposed on the inner side of the top of the mold base.
[0009] Furthermore, the limiter includes a damper, a limit seat, and a limit block; the limit seat is connected to the top of the base, and the limit block is connected to the limit seat through the damper.
[0010] The beneficial effects of this utility model are as follows:
[0011] 1. Through the coordinated operation of the dual-station slide rail structure and the translational replacement structure, the mold in use can be quickly moved out of the die-casting machine's working area, while the spare mold is moved into the working position, significantly shortening the mold changeover time and improving production efficiency.
[0012] 2. The dual-station design allows two sets of molds to be prepared and used simultaneously on one die-casting machine. While one set of molds is producing die castings, the other set of molds can simultaneously perform preheating, cleaning, and other preparatory work, reducing production downtime. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a die-casting mold replacement device according to the present invention;
[0014] Figure 2 This is a side view of the structure of a die-casting mold replacement device according to the present invention;
[0015] Figure 3 This is a schematic diagram of the dual-station slide rail structure of this utility model;
[0016] Figure 4 This is a side view of the dual-station slide rail structure of this utility model;
[0017] Figure 5 This is a schematic diagram of the hydraulic moving structure of this utility model;
[0018] Figure 6 This is a side view of the hydraulic moving structure of this utility model;
[0019] The above figures include the following reference numerals:
[0020] 1. Die-casting machine; 101. Molten metal nozzle; 102. Base; 2. Dual-station slide rail structure; 201. First slide rail; 202. Second slide rail; 203. Slide table; 204. Mold base; 2041. Clamping structure; 20411. Clamping column; 20412. First hydraulic cylinder; 20413. Clamping block; 2042. Heating structure; 20421. Heating tube; 20422. Insulation layer; 2042 3. Temperature control module; 205. Locking structure; 2051. Bolt movable groove; 2052. Bolt; 2053. Locking hole; 3. Translation replacement structure; 301. Third slide rail; 302. Translation stage; 303. Hydraulic moving structure; 3031. Second hydraulic cylinder; 3032. Fixed seat; 304. Limiter; 3041. Damper; 3042. Limit seat; 3043. Limit block; 4. Mold. Detailed Implementation
[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.
[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. The present application will now be described in detail with reference to the accompanying drawings and embodiments.
[0023] like Figure 1 and Figure 2 As shown in the preferred embodiment of this utility model, a die-casting mold replacement device includes: a die-casting machine 1, a dual-station slide rail structure 2, a translational replacement structure 3, and a mold 4.
[0024] The die-casting machine 1 includes a molten injection nozzle 101 and a base 102; the translational replacement structure 3 is disposed on the top of the base 102, the dual-station slide rail structure 2 is disposed on the top of the translational replacement structure 3, and the mold 4 is placed on the dual-station slide rail structure 2.
[0025] like Figure 3 and Figure 4 As shown, the dual-station slide rail structure 2 includes a first slide rail 201, a second slide rail 202, two slide tables 203, two mold seats 204, and two locking structures 205. The first slide rail 201 and the second slide rail 202 are parallel to each other and are both disposed on the top of the translational replacement structure 3. The two slide tables 203 are slidably connected to the first slide rail 201 and the second slide rail 202 respectively. The top of each of the two slide tables 203 is connected to the mold seat 204. The mold 4 is placed on the top of the mold seat 204. The two mold seats 204 slide back and forth on the first slide rail 201 and the second slide rail 202 respectively via the slide tables 203. The locking structures 205 are used to lock the position of the mold seats 204. The first slide rail 201 and the second slide rail 202 are arranged in parallel and respectively carry two molds 4 to realize alternating operation. The slide tables 203 slide along the slide rails, driving the mold seats 204 to move, so that the mold 4 moves to the correct position.
[0026] The translational replacement structure 3 includes a third slide rail 301, a translation stage 302, a hydraulic moving structure 303, and a limiter 304. The third slide rail 301 is disposed on the top of the base 102. The translation stage 302 is slidably connected to the third slide rail 301. One end of the hydraulic moving structure 303 is connected to the translation stage 302, and the other end is connected to the base 102. The limiter 304 is disposed on the top left side of the base 102 and is used to limit the degree to which the translation stage 302 slides to the left. The translation stage 302 slides left and right on the third slide rail 301 via the hydraulic moving structure 303. The hydraulic moving structure 303 provides stable thrust to ensure that the translation stage 302 moves quickly and smoothly, shortening the mold 4 switching time. The limiter prevents the translation stage from overtravel due to inertia and prevents equipment collision damage.
[0027] When the die-casting machine 1 needs to replace the mold 4 located on the second slide rail 202, the hydraulic moving structure 303 pushes the translation table 302 to move until the sprue of the mold 4 on the second slide rail 202 is directly below the melt injection nozzle 101 of the die-casting machine 1.
[0028] As a preferred embodiment of this utility model, it may also have the following additional technical features:
[0029] like Figure 3 and Figure 4 As shown, in a preferred embodiment, the mold base 204 includes a clamping structure 2041. The mold 4 is fixed to the top of the mold base 204 via the clamping structure 2041. The clamping structure 2041 includes two clamping posts 20411, a plurality of first hydraulic cylinders 20412, and two clamping blocks 20413. The clamping posts 20411 are provided on both the left and right sides of the mold base 204. The clamping blocks 20413 are connected to the clamping posts 20411 via the first hydraulic cylinders 20412. The mold 4 is located between the two clamping blocks 20413. The clamping structure 2041 drives the clamping blocks 20413 to clamp the two sides of the mold 4 via the first hydraulic cylinders 20412, completing the clamping of the mold 4 within a few seconds, ensuring the mold 4 is fixed, and reducing the intensity of manual operation.
[0030] like Figure 3 and Figure 4As shown, in a preferred embodiment, the locking structure 205 includes a bolt movable groove 2051, a bolt 2052, and a plurality of locking holes 2053. The bolt movable groove 2051 is disposed at the bottom of the clamping post 20411, and the bolt 2052 is disposed in the bolt movable groove 2051. The bolt 2052 is L-shaped, with one end extending laterally out of the bolt movable groove 2051 and the other end extending downward out of the bolt movable groove 2051. The plurality of locking holes 2053 are evenly distributed on the top of the translation stage 302, and the bolt movable groove 2051 and the locking holes 2053 correspond to each other. The bolt 2052 is mechanically interlocked with the locking holes 2053 on the translation stage 302, which enhances the vibration resistance of the mold base and prevents the mold 4 from shifting during the die-casting process.
[0031] like Figure 5 and Figure 6 As shown, in a preferred embodiment, the hydraulic moving structure 303 includes a second hydraulic cylinder 3031 and a fixed base 3032. The fixed base 3032 is disposed on the top right side of the base 102. One end of the second hydraulic cylinder 3031 is connected to the fixed base 3032, and the other end of the second hydraulic cylinder 3031 is connected to the translation stage 302. The second hydraulic cylinder 3031 drives the translation stage 302 to move left and right 301 along the third slide rail, so that the mold 4 on the first slide rail 201 and the mold 4 on the second slide rail 202 can be switched.
[0032] like Figure 3 and Figure 4 As shown, in a preferred embodiment, the mold base 204 is provided with a heating structure 2042, which includes a heating tube 20421, a heat insulation layer 20422, and a temperature control module 20423. The heating tube 20421 is disposed inside the mold base 204, the heat insulation layer 20422 is disposed at the bottom and around the sides of the mold base 204, and the temperature control module 20423 is disposed on the inner side of the top of the mold base 204. The heating tube 20421 is embedded inside the mold base 204, and the temperature is adjusted in real time by the temperature control module 20423, so that the mold 4 is preheated evenly, reducing internal defects in the casting.
[0033] like Figure 5 and Figure 6 As shown, in a preferred embodiment, the limiter 304 includes a damper 3041, a limit seat 3042, and a limit block 3043; the limit seat 3042 is connected to the top of the base 102, and the limit block 3043 is connected to the limit seat 3042 via the damper 3041. The limiter 304 absorbs impact energy through the damper 3041, preventing the translation stage from overtraveling due to inertia, preventing equipment collision damage, and extending the service life of the equipment.
[0034] The process for switching between different molds in this utility model is as follows:
[0035] Place the mold 4 that needs to be replaced on the mold base 204 on the second slide rail 202, and fix it on the top of the mold base 204 by the clamping structure 2041. Then use the heating structure 2042 to preheat the mold 4.
[0036] After the production of the previous die casting is completed, the mold 4 on the first slide rail 202 is separated from the molten nozzle 101. Then, the translation replacement structure 3 is activated, so that the hydraulic moving structure 303 pushes the translation table 302 to move. At the same time, the position of the mold 4 on the second slide rail 202 is adjusted until the sprue of the mold 4 on the second slide rail 202 is directly below the molten nozzle 101 of the die casting machine 1. Then, the mold seat 204 on the second slide rail 202 is locked on the translation table 302 by the locking structure 205. At this time, the mold replacement is completed.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A replacement die casting die apparatus, characterized by, The device comprises a die casting machine (1), a double-station sliding rail structure (2), a translation replacement structure (3), and a mold (4). The die casting machine (1) comprises a molten metal nozzle (101) and a base (102); the translation replacement structure (3) is arranged on the top of the base (102), the double-station sliding rail structure (2) is arranged on the top of the translation replacement structure (3), and the mold (4) is placed on the double-station sliding rail structure (2). The double-station sliding rail structure (2) comprises a first sliding rail (201), a second sliding rail (202), two sliding tables (203), two mold seats (204), and two locking structures (205); the first sliding rail (201) and the second sliding rail (202) are parallel to each other and are arranged on the top of the translation replacement structure (3); the two sliding tables (203) are slidably connected to the first sliding rail (201) and the second sliding rail (202), respectively; the top of each of the two sliding tables (203) is connected to the mold seat (204); the mold (4) is placed on the top of the mold seat (204); the two mold seats (204) are slidably arranged on the first sliding rail (201) and the second sliding rail (202) through the sliding tables (203), respectively; and the locking structure (205) is used to lock the position of the mold seat (204). The translation replacement structure (3) comprises a third sliding rail (301), a translation table (302), a hydraulic moving structure (303), and a position limiter (304); the third sliding rail (301) is arranged on the top of the base (102); the translation table (302) is slidably connected to the third sliding rail (301); one end of the hydraulic moving structure (303) is connected to the translation table (302), and the other end of the hydraulic moving structure (303) is connected to the base (102); the position limiter (304) is arranged on the left side of the top of the base (102); the position limiter (304) is used to limit the left sliding degree of the translation table (302); and the translation table (302) is slidably arranged on the third sliding rail (301) through the hydraulic moving structure (303). When the die casting machine (1) needs to replace the mold (4) on the second sliding rail (202), the hydraulic moving structure (303) pushes the translation table (302) to translate until the gate of the mold (4) on the second sliding rail (202) is directly below the molten metal nozzle (101) of the die casting machine (1).
2. The device for replacing a die casting mold according to claim 1, characterized in that The mold base (204) comprises a clamping structure (2041), the mold (4) is fixed on the top of the mold base (204) through the clamping structure (2041), the clamping structure (2041) comprises two clamping columns (20411), a plurality of first hydraulic cylinders (20412) and two clamping blocks (20413); the mold base (204) is provided with the clamping column (20411) on the left and right sides, the clamping block (20413) and the clamping column (20411) are connected through the first hydraulic cylinder (20412), and the mold (4) is located between the two clamping blocks (20413).
3. The device for replacing die-casting mold according to claim 2, characterized in that, The locking structure (205) comprises a lock bolt movable groove (2051), a lock bolt (2052) and a plurality of locking holes (2053); the lock bolt movable groove (2051) is arranged at the bottom of the clamping column (20411), the lock bolt (2052) is arranged in the lock bolt movable groove (2051), the lock bolt (2052) is in L shape, one end of the lock bolt (2052) extends out of the lock bolt movable groove (2051) to the side, the other end of the lock bolt (2052) extends out of the lock bolt movable groove (2051) downward, and the plurality of locking holes (2053) are uniformly distributed on the top of the translation table (302); the lock bolt movable groove (2051) and the locking hole (2053) correspond to each other.
4. The device for replacing die-casting mold according to claim 1, characterized in that, The hydraulic moving structure (303) comprises a second hydraulic cylinder (3031) and a fixed seat (3032); the fixed seat (3032) is arranged on the top right side of the base (102), one end of the second hydraulic cylinder (3031) is connected with the fixed seat (3032), and the other end of the second hydraulic cylinder (3031) is connected with the translation table (302).
5. The device for replacing die-casting mold according to claim 1, characterized in that, The mold base (204) is provided with a heating structure (2042), and the heating structure (2042) comprises a heating pipe (20421), a heat insulation layer (20422) and a temperature control module (20423). The heating pipe (20421) is arranged inside the mold base (204), the heat insulation layer (20422) is arranged at the bottom and around the mold base (204), and the temperature control module (20423) is arranged on the inner side of the top of the mold base (204).
6. The device for replacing die-casting mold according to claim 4, characterized in that, The position limiter (304) comprises a damper (3041), a position limiting seat (3042) and a position limiting block (3043); the position limiting seat (3042) is connected with the top of the base (102), and the position limiting block (3043) and the position limiting seat (3042) are connected through the damper (3041).