Quick mold change device for injection molding machine
By designing electric guide rails and fixing components on the injection molding machine, combined with casters and connecting structures, the rapid disassembly and mold changing of injection molds are realized, solving the problem of heavy and easily damaged molds, and improving the convenience and safety of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANCHENG DAFENG XINGYU NEW MATERIAL CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-06-09
Smart Images

Figure CN224334855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding machine technology, specifically to a quick-release mold changing device for an injection molding machine. Background Technology
[0002] The patent application CN220219429U discloses an injection molding machine that facilitates mold replacement. Through the design of a first and second fixing components, it makes mold replacement easier for operators, reducing disassembly steps and effectively improving operator convenience. In operation, the servo motor is first started. After starting, the servo motor drives the lead screw to rotate via the first and second gears. The rotating lead screw, in conjunction with the guide groove, drives the moving plate to reciprocate, releasing the moving plate from the injection mold and removing the limiting effect on the bottom of the mold. Then, the clamping plate is pulled up, and through the configuration of the sliding rod, slider, and spring, the clamping plate is released from the outside of the injection mold, releasing the limiting effect on the top of the mold, thus allowing the operator to replace the mold.
[0003] Although this technical solution can achieve quick mold disassembly, existing injection molds are generally heavy and still difficult to change manually. Furthermore, if the mold falls during mold changing, it is easy to impact the mold cavity, causing the mold to be scrapped. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a quick-release mold changing device for injection molding machines, which solves the problems existing in the prior art.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a quick-release mold changing device for an injection molding machine, including an injection molding assembly and a worktable, wherein an electric guide rail is horizontally arranged on the top of the worktable, and an extension plate is arranged on the left front side of the worktable.
[0006] The injection molding assembly includes a base, a top seat, a slide, a movable plate, and a mounting bracket. A bottom mold is provided on the top of the base, and a top mold is provided on the bottom of the top seat. Guide posts that are inserted into the bottom mold are provided around the bottom of the top mold. The slide is provided on the output end of the electric guide rail. Fixing components are provided between the slide and the movable plate. A connecting component is provided between the base and the top seat. A cylinder connected to the movable plate is provided on the mounting bracket.
[0007] Preferably, the fixing component includes a slide groove and an electric guide rail. The output end of the electric guide rail is provided with a fixing rod. The bottom slide groove and the electric guide rail are disposed on the slide base, and the top slide groove and the electric guide rail are disposed on the movable plate. The base is vertically inserted into the bottom slide groove, and the bottom fixing rod is horizontally inserted into the base. The top seat is vertically inserted into the top slide groove, and the top fixing rod is horizontally inserted into the top seat.
[0008] Preferably, the base is provided with casters at the bottom.
[0009] Preferably, the connecting assembly includes a vertical rod disposed on the top seat, the vertical rod having a screw hole, an electric telescopic rod disposed on the base, the output end of the electric telescopic rod having a slot matching the vertical rod, and a bolt matching the screw hole being disposed on the slot.
[0010] Preferably, the mounting bracket is located on the top right side of the workbench.
[0011] Preferably, the movable plate is provided with a through groove, and the top seat is detachably connected to an injection pipe located at the through groove.
[0012] Beneficial effects
[0013] This invention provides a quick-release mold changing device for an injection molding machine. Compared with the prior art, it has the following advantages:
[0014] 1. The quick-release mold changing device of this injection molding machine allows the top mold to be disassembled and then guided by guide pillars to fit against the bottom mold. The slide can then be moved to the left by the electric guide rail to move away from the production position. This allows the top mold and bottom mold to be moved to a fixed mold changing position to the left as a whole. This makes it easy for a forklift to enter and move the bottom mold and top mold as a whole by using the forks. After moving them, the new bottom mold and top mold can be placed on the extension plate by using the forks, and then easily moved to the slide by the casters to achieve mold changing.
[0015] 2. The quick-release mold changing device of the injection molding machine, through the connecting components, makes it easy to fix the top mold and the bottom mold together, so as to avoid accidental drop and damage to the cavity on the top mold and the bottom mold during forklift transportation. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the injection molding component of this utility model;
[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0019] Figure 4 This is a schematic diagram of the electric telescopic rod, slot, and bolt of this utility model.
[0020] In the diagram: 1. Base; 2. Top seat; 3. Bottom mold; 4. Top mold; 5. Guide column; 6. Slide seat; 7. Movable plate; 8. Slide groove; 9. Electric guide rail one; 10. Fixed rod; 11. Worktable; 12. Electric guide rail two; 13. Extension plate; 14. Casters; 15. Vertical rod; 16. Electric telescopic rod; 17. Slot; 18. Bolt; 19. Mounting bracket; 20. Cylinder; 21. Through groove; 22. Injection pipe. Detailed Implementation
[0021] 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.
[0022] See Figures 1-4 This utility model provides the following two technical solutions:
[0023] First embodiment: A quick mold changing device for an injection molding machine, including an injection molding assembly and a worktable 11. This application uses a forklift to remove the mold, but forklifts are generally difficult to reach the production position, i.e. the position where the mold is located. Therefore, an electric guide rail 2 12 can be horizontally arranged on the top of the worktable 11. The electric guide rail 2 12 can drive the mold to a fixed mold changing position. An extension plate 13 is provided on the front left side of the worktable 11.
[0024] The injection molding assembly includes a base 1, a top seat 2, a slide 6, a movable plate 7, and a mounting bracket 19. A bottom mold 3 is provided on the top of the base 1, and a top mold 4 is provided on the bottom of the top seat 2. Guide pillars 5, which are inserted into the bottom mold 3, are provided around the bottom of the top mold 4 to guide the mold closing and opening. The slide 6 is located on the output end of the electric guide rail 12. Fixing components are provided between the slide 6 and the movable plate 7. A connecting component is provided between the base 1 and the top seat 2. A cylinder 20 connected to the movable plate 7 is provided on the mounting bracket 19 to drive the movable plate 7 to rise and fall. The cylinder 20 drives the movable plate 7 to move downward, which in turn drives the top mold 4 on the top seat 2 to move downward and fit against the bottom mold 3 for injection molding.
[0025] The fixing components include a slide groove 8 and an electric guide rail 9. The output end of the electric guide rail 9 is equipped with a fixing rod 10. The bottom slide groove 8 and the electric guide rail 9 are mounted on the slide base 6, and the top slide groove 8 and the electric guide rail 9 are mounted on the movable plate 7. The base 1 is vertically inserted into the bottom slide groove 8, and the bottom fixing rod 10 is horizontally inserted into the base 1. The top seat 2 is vertically inserted into the top slide groove 8, and the top fixing rod 10 is horizontally inserted into the top seat 2. The vertical insertion method facilitates positioning, thereby making it convenient for the fixing rod 10 to be horizontally aligned with the base 1 and the top seat 2 for insertion and fixing.
[0026] To facilitate the movement of the base 1, the bottom of the base 1 is equipped with casters 14.
[0027] The connecting assembly includes a vertical rod 15 mounted on the top seat 2, with screw holes on the vertical rod 15, and an electric telescopic rod 16 mounted on the base 1. The output end of the electric telescopic rod 16 is provided with a slot 17 that matches the vertical rod 15, and the slot 17 is provided with a bolt 18 that matches the screw holes, so that they do not interfere with each other during daily use. When connection is required, the electric telescopic rod 16 drives it to move upward, so that the two can be connected and fixed.
[0028] Mounting bracket 19 is positioned on the top right side of workbench 11, so that the mold changing position is as far away from the production position as possible.
[0029] The second implementation method differs from the first implementation method in that: a through groove 21 is provided on the movable plate 7, and an injection pipe 22 located at the through groove 21 is detachably connected to the top seat 2, so that the injection pipe 22 can be easily disassembled manually through the through groove 21 when changing the mold.
[0030] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.
[0031] When using the mold, first remove the fixing of the top seat 2. At this time, the top mold 4 is attached to the bottom mold 3. Then, the slide 6 can be moved to the left to the mold changing position by the electric guide rail 12. This will move the top mold 4 and the bottom mold 3 to the fixed mold changing position to the left so that the forklift can enter. Then, remove the fixing of the base 1. The bottom mold 3 and the top mold 4 can be moved away as a whole by the forks. After moving them away, the new bottom mold 3 and the top mold 4 can be placed on the extension plate 13 by the forks. Then, the slide 6 can be easily moved by the casters 14 on the base 1. Then, the slide 6 can be moved to the mounting bracket 19 to realize the mold changing. The removed bottom mold 3 and top mold 4 are fixed by the slot 17, the vertical rod 15 and the bolt 18. This can ensure that the bottom mold 3 and the top mold 4 will not separate if they are accidentally dropped during transportation, thus ensuring that the cavities between the two will not be damaged.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0033] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick-release mold changing device for an injection molding machine, characterized in that: It includes an injection molding assembly and a worktable (11). The top of the worktable (11) is provided with an electric guide rail (12) and the front left side of the worktable (11) is provided with an extension plate (13). The injection molding assembly includes a base (1), a top seat (2), a slide (6), a movable plate (7), and a mounting bracket (19). The top of the base (1) is provided with a bottom mold (3), and the bottom of the top seat (2) is provided with a top mold (4). Guide posts (5) inserted into the bottom mold (3) are provided around the bottom of the top mold (4). The slide (6) is provided on the output end of the electric guide rail (12). A fixing component is provided between the slide (6) and the movable plate (7). A connecting component is provided between the base (1) and the top seat (2). A cylinder (20) connected to the movable plate (7) is provided on the mounting bracket (19).
2. The quick-release mold changing device for an injection molding machine according to claim 1, characterized in that: The fixing assembly includes a slide groove (8) and an electric guide rail (9). The output end of the electric guide rail (9) is provided with a fixing rod (10). The bottom slide groove (8) and the electric guide rail (9) are set on the slide base (6), and the top slide groove (8) and the electric guide rail (9) are set on the movable plate (7). The base (1) is vertically inserted into the bottom slide groove (8), and the bottom fixing rod (10) is horizontally inserted into the base (1). The top seat (2) is vertically inserted into the top slide groove (8), and the top fixing rod (10) is horizontally inserted into the top seat (2).
3. The quick-release mold changing device for an injection molding machine according to claim 1, characterized in that: The base (1) is provided with casters (14) at its bottom.
4. The quick-release mold changing device for an injection molding machine according to claim 1, characterized in that: The connecting assembly includes a vertical rod (15) disposed on the top seat (2), a screw hole disposed on the vertical rod (15), an electric telescopic rod (16) disposed on the base (1), a slot (17) matching the vertical rod (15) disposed on the output end of the electric telescopic rod (16), and a bolt (18) matching the screw hole disposed on the slot (17).
5. A quick-release mold changing device for an injection molding machine according to claim 1, characterized in that: The mounting bracket (19) is located on the top right side of the workbench (11).
6. A quick-release mold changing device for an injection molding machine according to claim 1, characterized in that: The movable plate (7) is provided with a through groove (21), and the top seat (2) is detachably connected to an injection pipe (22) located at the through groove (21).