An injection molding machine and its mold
By introducing an elastic mechanism into the mold, using limiting grooves and springs to push the front mold push plate, the problem of difficult demolding of complex cup structures is solved, achieving smooth demolding and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN NANHAI DISTRICT CHUANYI PRECISE MASCH CO LTD
- Filing Date
- 2025-09-17
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional molds are difficult to use for demolding, especially for cups with complex structures, which affects production continuity and efficiency, may damage products, and increase production costs.
An elastic mechanism is introduced into the mold. By setting a limiting groove and a limiting connector between the front mold push plate and the front mold core, the spring pushes the front mold push plate away from the front mold core, thereby achieving automatic demolding.
To ensure smooth product demolding, improve production efficiency, reduce product damage rate, and lower production costs.
Smart Images
Figure CN224576101U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold manufacturing technology, and in particular to an injection molding machine and its mold. Background Technology
[0002] In the cup injection molding process, traditional molds often cause problems during demolding, especially for cups with complex structures or special requirements. The product may stick to the front mold and be difficult to demold. This not only affects the continuity and efficiency of production, but may also lead to unstable product quality, longer production cycles, product damage, and increased production costs. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides an injection molding machine and its mold, which is suitable for the injection molding production of cups with complex structures, ensuring smooth demolding of the product and preventing damage, thereby reducing production costs.
[0004] To solve the above problems, this utility model proposes a mold for an injection molding machine, characterized in that it includes a front mold part, which includes, from top to bottom, a panel, a manifold plate, a hot runner support plate, a front mold core, and a front mold push plate.
[0005] A plurality of limiting grooves arranged at predetermined intervals are provided along the bottom edge of the front mold push plate. A limiting connector is provided in the limiting groove. The top end of the limiting connector passes through the limiting groove and is fixedly connected to the front mold core, and can slide relative to the limiting groove. The bottom end of the limiting connector can abut against the bottom of the limiting groove.
[0006] Multiple mounting cavities are formed between the front mold core and the front mold push plate. The multiple mounting cavities are evenly arranged along the edge of the front mold push plate. A spring is provided in each mounting cavity, and the spring is used to push the front mold push plate away from the front mold core.
[0007] As an improvement to the above technical solution, the top of the front mold push plate is provided with multiple guide grooves along the outer periphery of its injection area. Guide pillars are provided in the guide grooves. The bottom of the front mold core is provided with guide pillar sleeves corresponding to the positions of the guide grooves. The bottom end of the guide pillar sleeves is provided with a receiving groove, and the guide pillars can extend into the receiving grooves.
[0008] As an improvement to the above technical solution, the guide post is arranged along the central axis of the guide groove.
[0009] As an improvement to the above technical solution, the limiting connector is a limiting bolt. One end of the limiting bolt is threaded to the bottom of the front mold core, and the other end is located in the limiting groove and can move relative to the limiting groove.
[0010] As an improvement to the above technical solution, the panel, manifold, hot runner support plate and front mold core are fixedly connected in sequence, and the manifold is provided with injection holes.
[0011] As an improvement to the above technical solution, it also includes a rear mold section, which consists of a rear mold core, a rear mold push plate, a rear template, and an ejector plate, from top to bottom.
[0012] An injection cavity is formed between the front mold core and the rear mold core, and the injection cavity is connected to the injection hole.
[0013] As an improvement to the above technical solution, the bottom sides of the flow divider are provided with front mold guide pillars, and the rear mold push plate is provided with front mold guide sleeves corresponding to the positions of the front mold guide pillars.
[0014] Accordingly, this utility model also provides an injection molding machine, including the mold described above.
[0015] The following are the beneficial effects of implementing this utility model:
[0016] The injection molding machine mold of this utility model has multiple mounting cavities formed between its front mold core and front mold push plate. Springs are installed within these mounting cavities, and the front mold push plate can move relative to the front mold core. Through the pushing action of the springs, after injection molding is completed, the front mold core is pushed away from the front mold push plate, allowing the cup product to smoothly detach from the mold cavity. This successfully solves the problem of difficult demolding and makes the demolding process smoother. Attached Figure Description
[0017] Figure 1 This is an anatomical view of a mold according to an embodiment of the present invention;
[0018] Figure 2 This is a cross-sectional view of the front mold portion according to an embodiment of the present invention;
[0019] Figure 3 yes Figure 2 A magnified view of point A in the middle. Detailed Implementation
[0020] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.
[0021] See Figures 1 to 3 As shown, this utility model embodiment provides a mold for an injection molding machine, characterized in that it includes a front mold part 1, which includes a panel 11, a manifold plate 12, a hot runner support plate 13, a front mold core 14 and a front mold push plate 15 from top to bottom.
[0022] This utility model embodiment adds an elastic mechanism between the front mold core 14 and the front mold push plate 15, so that the mold can be automatically demolded after injection molding.
[0023] Specifically, a plurality of limiting grooves 151 arranged at predetermined intervals are provided along the bottom edge of the front mold push plate 15. A limiting connector 152 is provided in the limiting groove 151. The top end of the limiting connector 152 passes through the limiting groove 151 and is fixedly connected to the front mold core 14, and can slide relative to the limiting groove 151. The bottom end of the limiting connector 152 can abut against the bottom of the limiting groove 151.
[0024] A plurality of mounting cavities 153 are formed between the front mold core 14 and the front mold push plate 15. The plurality of mounting cavities 153 are evenly arranged along the edge of the front mold push plate 15. A spring 154 is provided in the mounting cavity 153. The spring 154 is used to push the front mold push plate 15 away from the front mold core 14.
[0025] The injection molding machine mold of this utility model has multiple mounting cavities 153 formed between its front mold core 14 and front mold push plate 15. Springs 154 are installed within the mounting cavities 153, and the front mold push plate 15 can move relative to the front mold core 14. Through the pushing action of the springs 154, after injection molding is completed, the front mold core 14 is pushed away from the front mold push plate 15, allowing the cup product to smoothly detach from the mold cavity. This successfully solves the problem of difficult demolding and makes the demolding process smoother.
[0026] In some embodiments, the top of the front mold ejector plate 15 is provided with a plurality of guide grooves 155 along the outer periphery of its injection area. The guide grooves 155 are provided with guide posts 156. The bottom of the front mold core 14 is provided with guide post sleeves 157 corresponding to the position of the guide grooves 155. The bottom end of the guide post sleeves 157 is provided with a receiving groove, and the guide post 156 can extend into the receiving groove.
[0027] When the injection molding machine finishes injection and opens the mold, the elastic element 154 pushes the front mold core 14 away from the front mold push plate 15, and the guide post and guide sleeve 157 slides along the guide groove 155 away from the front mold push plate 15. The guide groove 155 and its guide post 156 guide the movement of the front mold core 14, avoiding excessive relative displacement during the pop-out process, which could damage the product.
[0028] Preferably, the guide post 156 is arranged along the central axis of the guide groove 155.
[0029] In some implementations, the limiting connector 152 is a limiting bolt. One end of the limiting bolt is threaded to the bottom of the front mold core 14, and the other end is located in the limiting groove 151 and can move relative to the limiting groove 151.
[0030] In some embodiments, the panel 11, the manifold 12, the hot runner support plate 13, and the front mold core 14 are sequentially fixedly connected, and the manifold 12 is provided with injection holes. Injection material flows into the manifold 14 through the injection holes.
[0031] Preferably, it also includes a rear mold part 2, which includes a rear mold core 21, a rear mold push plate 22, a rear template 23 and an ejector plate 24 from top to bottom;
[0032] An injection cavity is formed between the front mold core 14 and the rear mold core 24, and the injection cavity is connected to the injection hole.
[0033] When the injection molding is completed and the mold is opened, the front mold push plate 15 pushes the front mold core 14 away from the cup, leaving the product on the rear mold core 21. Then, the rear mold push plate 22 and the ejector plate 24 eject the cup, completing the production of the cup.
[0034] Preferably, the bottom sides of the flow divider plate 12 are provided with front mold guide pillars 16, and the rear mold push plate 22 is provided with front mold guide sleeves 25 corresponding to the positions of the front mold guide pillars.
[0035] Accordingly, this utility model embodiment also provides an injection molding machine, including the mold described above.
[0036] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. A mold for an injection molding machine, characterized in that, The front mold section includes, from top to bottom, a panel, a manifold plate, a hot runner support plate, a front mold core, and a front mold push plate. A plurality of limiting grooves arranged at predetermined intervals are provided along the bottom edge of the front mold push plate. A limiting connector is provided in the limiting groove. The top end of the limiting connector passes through the limiting groove and is fixedly connected to the front mold core, and can slide relative to the limiting groove. The bottom end of the limiting connector can abut against the bottom of the limiting groove. Multiple mounting cavities are formed between the front mold core and the front mold push plate. The multiple mounting cavities are evenly arranged along the edge of the front mold push plate. A spring is provided in each mounting cavity, and the spring is used to push the front mold push plate away from the front mold core.
2. The mold of claim 1, wherein, The top of the front mold ejector plate has multiple guide grooves along the outer periphery of its injection area. Guide pillars are provided in the guide grooves. The bottom of the front mold core is provided with guide pillar sleeves corresponding to the positions of the guide grooves. The bottom end of the guide pillar sleeves is provided with a receiving groove, and the guide pillars can extend into the receiving grooves.
3. The mold of claim 2, wherein, The guide post is arranged along the central axis of the guide groove.
4. The mold of claim 1, wherein, The limiting connector is a limiting bolt. One end of the limiting bolt is threaded to the bottom of the front mold core, and the other end is located in the limiting groove and can move relative to the limiting groove.
5. The mold of claim 1, wherein, The panel, manifold, hot runner support plate, and front mold core are fixedly connected in sequence, and the manifold is provided with injection holes.
6. The mold of claim 5, wherein, It also includes a rear mold section, which consists of a rear mold core, a rear mold ejector plate, a rear template plate, and an ejector plate, from top to bottom. An injection cavity is formed between the front mold core and the rear mold core, and the injection cavity is connected to the injection hole.
7. The mold of claim 6, wherein The bottom sides of the manifold are provided with front mold guide pillars, and the rear mold push plate is provided with front mold guide sleeves corresponding to the positions of the front mold guide pillars.
8. An injection molding machine characterized by, Including the mold as described in any one of claims 1-7.