Die holder capable of automatically and quickly changing die
By setting a quick-locking component in the mold base, the problem of time-consuming mold replacement in the prior art is solved, and quick and convenient mold replacement is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JULU MOLD CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-17
AI Technical Summary
The existing mold base requires tools to unscrew bolts or screws when changing the mold, which makes mold replacement inconvenient and time-consuming.
A quick-locking assembly is installed between the bottom mold and the top mold, including a positioning pin, a retaining ring, a lock, a spring, and a guide rod. The top mold and the bottom mold can be separated by disassembling multiple locks, enabling quick mold replacement.
This enables tool-free mold replacement, improving the speed and convenience of mold changing.
Smart Images

Figure CN224130248U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a mold base, specifically a mold base that can automatically and quickly change molds. Background Technology
[0002] The die holder is the part in the extrusion die head that supports the core and die. It is mainly used to accommodate the cavity of the injection molding die and to directly install the die onto the injection molding machine.
[0003] The bottom mold and top mold on the existing mold base are mostly fixed by bolts or screws. This means that when the mold needs to be replaced, the bolts or screws can only be unscrewed first with tools before it can be replaced. Unscrewing bolts usually takes a lot of time, which makes mold replacement inconvenient and prevents quick mold replacement. Utility Model Content
[0004] The purpose of this invention is to provide a mold base that can automatically and quickly change molds. By simply disassembling multiple locks, the top mold can be separated from the bottom mold, and the mold can be changed without tools, making the mold change faster and more convenient.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold base capable of automated and rapid mold changing, comprising a bottom mold and a top mold disposed on the bottom mold, a quick-locking assembly provided between the bottom mold and the top mold, and the bottom mold comprising a bottom template, with a bottom locking spring checker fixed on the upper end face of the bottom template, the top mold comprising a top template, with a top locking spring checker fixed on the lower end face of the top template, the quick-locking assembly comprising a positioning post and a fixing ring fixed to the outer circle of the positioning post, the positioning post being fixed to the top template, and a lock being installed on the fixing ring, the lock being installed at the bottom of the top template, thus the lock can fix the positioning post and the fixing ring to the bottom of the top template, so that the bottom mold and the top mold are fixed as one unit, a fixing post is provided at the bottom of the positioning post, and a spring and a guide rod are provided between the positioning post and the fixing post, the two ends of the spring being connected to the fixing post and the guide rod respectively, and the fixing post being fixed to the bottom template.
[0006] Preferably, an outer support plate is provided at the ends of the bottom template and the top template that are far apart from each other. There are two outer support plates, and the bottom template and the top template are respectively fixed to the opposite side of the two outer support plates.
[0007] Preferably, multiple bottom templates and multiple top templates are provided, with the multiple bottom templates distributed at equal intervals on the outer support plate.
[0008] Preferably, multiple bottom locking spring checkers and multiple top locking spring checkers are provided, and the multiple bottom locking spring checkers are respectively located below the multiple top locking spring checkers.
[0009] Preferably, there are two sets of quick-locking components between the bottom mold and the top mold, and the two sets of quick-locking components are symmetrically distributed on the bottom mold. The two sets of quick-locking components cooperate with each other to double fix the bottom mold and the top mold, so that the fixing effect is better.
[0010] Preferably, two locking holes are provided on the top template, and two sets of quick-locking components are respectively installed in the two locking holes.
[0011] Preferably, multiple locks are provided on the fixed ring, and the multiple locks are distributed in the circumferential direction of the fixed ring.
[0012] Preferably, the positioning post has a hollow cavity structure with an opening at the bottom. The guide rod is fixed inside the cavity of the positioning post, allowing the guide rod to slide within the cavity. The spring, in conjunction with the guide rod, can adjust the distance between the positioning post and the fixed post, thereby adjusting the distance between the bottom template and the top template to adapt to different workpiece processing.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention provides two sets of quick-locking components between each bottom mold and top mold. The quick-locking components are fixed to the top mold by multiple locks. When the mold needs to be replaced, only the multiple locks need to be disassembled to separate the top mold from the bottom mold and complete the mold replacement. There is no need to disassemble bolts or other parts, which realizes tool-free mold replacement, making mold replacement faster and more convenient. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of an embodiment of the present utility model;
[0016] Figure 2 This is a schematic diagram of the combination of the bottom mold and the top mold of this utility model;
[0017] Figure 3 This is a schematic diagram of the bottom mold and top mold after separation.
[0018] Figure 4 This is one of the schematic diagrams of the quick-locking component of this utility model;
[0019] Figure 5 This is the second schematic diagram of the quick-locking component of this utility model;
[0020] Figure 6 This is the front view of the present utility model.
[0021] The reference numerals and names in the figure are as follows: 1. Outer support plate; 2. Bottom mold; 21. Bottom template; 22. Bottom locking spring check valve; 3. Top mold; 31. Top template; 311. Locking hole; 32. Top locking spring check valve; 4. Quick locking assembly; 41. Positioning post; 42. Fixing ring; 43. Lock; 44. Fixing post; 45. Spring; 46. Guide rod. 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] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "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 the embodiments of this utility model and simplifying the description. They 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0024] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0025] Please see Figure 1 One embodiment of this utility model is a mold base that can be automatically and quickly changed, including a bottom mold 2 and a top mold 3 disposed on the bottom mold 2.
[0026] Please see Figure 2 A quick-locking assembly 4 is provided between the bottom mold 2 and the top mold 3. The bottom mold 2 includes a bottom template 21, and the top mold 3 includes a top template 31. An outer support plate 1 is provided at the ends of the bottom template 21 and the top template 31 that are far apart from each other. There are two outer support plates 1. The bottom template 21 and the top template 31 are respectively fixed to the two outer support plates 1 facing each other. In addition, there are multiple bottom templates 21 and multiple top templates 31. Multiple bottom templates 21 are evenly distributed on the outer support plates 1. Similarly, multiple top templates 31 are also evenly distributed on the outer support plates 1. Therefore, this mold base can process multiple workpieces at the same time.
[0027] Please see Figure 3 A bottom locking spring check valve 22 is fixed on the upper end face of the bottom template 21, and a top locking spring check valve 32 is fixed on the lower end face of the top template 31. Multiple bottom locking spring check valves 22 and top locking spring check valves 32 are provided. There are two sets of quick locking components 4 between the bottom mold 2 and the top mold 3, and the two sets of quick locking components 4 are symmetrically distributed on the bottom mold 2. The two sets of quick locking components 4 cooperate with each other to double fix the bottom mold 2 and the top mold 3, so that the fixing effect is better. Two locking holes 311 are provided on the top template 31, and the two sets of quick locking components 4 are respectively installed in the two locking holes 311.
[0028] Please see Figure 4 The quick-locking assembly 4 includes a positioning post 41 and a fixing ring 42 fixed to the outer circle of the positioning post 41. In actual installation, the top of the positioning post 41 is fixed in the locking hole 311, so that the bottom mold 2 and the top mold 3 can be fixed by two sets of quick-locking assemblies 4. The positioning post 41 is fixed on the top template 31. Multiple locks 43 are installed on the fixing ring 42. The multiple locks 43 are distributed in the circumferential direction of the fixing ring 42. The locks 43 are installed at the bottom of the top template 31. Therefore, the locks 43 can fix the positioning post 41 and the fixing ring 42 to the bottom of the top template 31, so that the bottom mold 2 and the top mold 3 are fixed as one unit. A fixing post 44 is provided at the bottom of the positioning post 41.
[0029] Please see Figure 5A spring 45 and a guide rod 46 are provided between the positioning post 41 and the fixing post 44. The two ends of the spring 45 are connected to the fixing post 44 and the guide rod 46 respectively. The fixing post 44 is fixed to the bottom template 21. The positioning post 41 is a hollow cavity structure with an opening at the bottom. The guide rod 46 is fixed in the cavity of the positioning post 41, so that the guide rod 46 can slide in the cavity of the positioning post 41. The spring 45, together with the guide rod 46, can adjust the distance between the positioning post 41 and the fixing post 44, thereby adjusting the distance between the bottom template 21 and the top template 31 to adapt to different workpiece processing. When changing the mold, it is only necessary to disengage the multiple locks 43 between the bottom template 21 and the top template 31 to separate the multiple locks 43 from the top template 31. Then, the top template 31 and its multiple top locking spring checkers 32 can be separated from the bottom template 21. Then, the new top template 31 can be installed. No tools are needed to complete the disassembly and assembly, so the mold can be changed automatically and quickly.
[0030] Please see Figure 6 Multiple bottom locking spring check valves 22 are respectively located below multiple top locking spring check valves 32.
[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A mold base capable of automatic quick mold change, comprising a bottom mold (2) and a top mold (3) arranged on the bottom mold (2), characterized in that: A quick-locking assembly (4) is provided between the bottom mold (2) and the top mold (3). The bottom mold (2) includes a bottom template (21), and a bottom locking spring check valve (22) is fixed to the upper end face of the bottom template (21). The top mold (3) includes a top template (31), and a top locking spring check valve (32) is fixed to the lower end face of the top template (31). The quick-locking assembly (4) includes a positioning post (41) and a fixing ring (42) fixed to the outer circle of the positioning post (41). (41) Fixed on the top template (31), the fixing ring (42) is equipped with a lock (43), the lock (43) is installed at the bottom of the top template (31), the bottom of the positioning column (41) is provided with a fixing pile (44), and a spring (45) and a guide rod (46) are provided between the positioning column (41) and the fixing pile (44). The two ends of the spring (45) are respectively connected to the fixing pile (44) and the guide rod (46), and the fixing pile (44) is fixed on the bottom template (21).
2. The mold base capable of automatic quick mold change according to claim 1, wherein: The bottom template (21) and the top template (31) are each provided with an outer support plate (1) at their ends that are far apart from each other. There are two outer support plates (1). The bottom template (21) and the top template (31) are respectively fixed to the opposite side of the two outer support plates (1).
3. The mold base capable of automatic quick mold change according to claim 2, characterized in that: Multiple bottom templates (21) and top templates (31) are provided, and the multiple bottom templates (21) are distributed at equal intervals on the outer support plate (1).
4. The mold set of claim 1, wherein: Multiple bottom locking spring check valves (22) and multiple top locking spring check valves (32) are provided, and multiple bottom locking spring check valves (22) are respectively located below multiple top locking spring check valves (32).
5. The mold set of claim 1, wherein: There are two sets of quick-locking components (4) between the bottom mold (2) and the top mold (3), and the two sets of quick-locking components (4) are symmetrically distributed on the bottom mold (2).
6. The mold set of claim 5, wherein: The top template (31) is provided with two locking holes (311), and the two sets of quick locking components (4) are respectively installed in the two locking holes (311).
7. The mold set of claim 1, wherein: The fixing ring (42) is provided with a plurality of locks (43), which are distributed in the circumferential direction of the fixing ring (42).
8. The mold set of claim 1, wherein: The positioning post (41) is a hollow cavity structure with an opening at the bottom, and the guide rod (46) is fixed inside the cavity of the positioning post (41).