An injection mold device for easy installation of metal inserts
By introducing magnetic suction and ejection mechanisms into the injection mold, electromagnets are used to quickly fix metal inserts and automatically demold them, solving the problems of long installation time and complex structure of traditional molds, and achieving efficient installation and low-cost production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU YONGLI PLASTIC CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-30
Smart Images

Figure CN224426301U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of injection molds, and specifically relates to an injection mold equipment that facilitates the installation of metal inserts. Background Technology
[0002] Injection molds are tools used to produce plastic products. Molten plastic material is injected into the mold cavity, and after cooling and solidification, it forms a product of the desired shape. Molds are usually made of metal materials such as steel or aluminum and are divided into two parts: a fixed mold and a moving mold. After the mold is closed, a sealed cavity is formed. Traditional injection molds usually use mechanical methods such as screws and clamping structures to fix inserts. These methods have the characteristics of strong fixation adaptability, but they also have significant disadvantages. Clamping structures increase the complexity of the mold structure and the design and manufacturing cost of the mold, while screw fixing prolongs the installation time of metal inserts. Therefore, we hope to design an injection mold equipment that facilitates the installation of metal inserts to solve this problem. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an injection mold equipment that facilitates the installation of metal inserts, thereby solving the problems mentioned in the background art.
[0004] This utility model is achieved through the following technical solution: an injection mold equipment for easy installation of metal inserts, comprising: a mold one, wherein the mold one is provided with an ejection mechanism for easy demolding, the mold one is provided with a magnetic suction mechanism for installing metal inserts, and a mold two is also provided on the mold one;
[0005] A guide rod is fixedly connected to the right side surface of mold one, and a mold base is fixedly connected to the outside of the guide rod. Mold two is slidably sleeved on the outside of the guide rod.
[0006] The magnetic attraction mechanism includes a mounting groove, which is located inside the mold base. An electromagnet is installed inside the mounting groove. The mold base also has a fixing groove, in which a template is fixedly connected by screws. By setting up the magnetic attraction mechanism, the electromagnet generates a magnetic field through a coil, which can quickly attract and fix the metal insert. This significantly improves the installation efficiency of the metal insert, while eliminating the need to process additional complex mechanical clamping structures on the mold, thereby reducing the mold manufacturing cost.
[0007] As a preferred embodiment, the electromagnet is a DC electromagnet with a stable magnetic field and an adsorption force that can be controlled by current.
[0008] As a preferred embodiment, the template is made of a nickel-based alloy material with good magnetic field penetration and high temperature resistance.
[0009] In a preferred embodiment, the ejection mechanism includes a connecting plate, on which an ejector rod is fixedly connected. A spring is provided on the outer side of the ejector rod. By setting the ejection mechanism, the ejector rod automatically ejects the molded plastic part from the mold cavity, thereby achieving rapid demolding of the plastic part and improving production efficiency.
[0010] In a preferred embodiment, a cylinder is fixedly mounted on the left side surface of the mold, and the telescopic end of the cylinder is fixedly connected to the connecting plate.
[0011] In a preferred embodiment, the connecting plate, the electromagnet, and the template are all provided with through holes, and the top rod slides through the inside of the through hole with its right end face parallel to the right side surface of the template.
[0012] In a preferred embodiment, a connecting block is slidably sleeved on the outer side of the push rod, and an anti-loosening nut is connected to the connecting block via a bearing. The anti-loosening nut is screwed onto the outer side of the push rod via a thread.
[0013] In a preferred embodiment, one end of the spring is fixedly connected to the connecting plate, and the other end of the spring is fixedly connected to the connecting block. The spring force causes the cylinder to reset, preventing vibration during the injection molding process from causing displacement of the cylinder rod, which would result in the end face of the ejector rod being non-parallel to the template, thus causing injection molding defects. At the same time, the anti-loosening nut can be rotated to make it abut against the connecting block to cause displacement and squeeze the spring, thereby changing the compression state of the spring to adjust the spring preload.
[0014] After adopting the above technical solution, the beneficial effects of this utility model are:
[0015] 1. By setting up a magnetic attraction mechanism, an electromagnet generates a magnetic field through a coil, which can quickly attract and fix metal inserts, significantly improving the installation efficiency of metal inserts. At the same time, it eliminates the need to process additional complex mechanical clamping structures on the mold, thereby reducing the mold manufacturing cost.
[0016] 2. By setting an ejection mechanism, the ejector pin automatically ejects the molded plastic part from the mold cavity, realizing rapid demolding of the plastic part and improving production efficiency. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1This is a three-dimensional view of the overall structure of an injection mold equipment that facilitates the installation of metal inserts according to this utility model.
[0019] Figure 2 This is an exploded view of the magnetic suction mechanism of an injection mold equipment that facilitates the installation of metal inserts, according to this utility model.
[0020] Figure 3 This is an exploded view of the ejection mechanism of an injection mold equipment that facilitates the installation of metal inserts, according to this utility model.
[0021] Figure 4 This is an exploded view of the overall structure of an injection mold equipment that facilitates the installation of metal inserts according to this utility model.
[0022] Figure 5 This is a partially exploded view of the ejection mechanism of an injection mold equipment that facilitates the installation of metal inserts, according to this utility model.
[0023] In the diagram, 1-Mold 1, 2-Ejection mechanism, 3-Magnetic suction mechanism, 4-Mold 2;
[0024] 11-Guide rod, 12-Mold base;
[0025] 21-Connecting plate, 22-Push rod, 23-Spring, 24-Connecting block, 25-Anti-loosening nut, 26-Cylinder;
[0026] 31-Mounting slot, 32-Electromagnet, 33-Fixing slot, 34-Template, 35-Through hole. Detailed Implementation
[0027] 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.
[0028] Please see Figures 1-3 As the first embodiment of this utility model:
[0029] An injection molding equipment for easy installation of metal inserts includes: a mold 1, an ejection mechanism 2 for easy demolding is provided inside the mold 1, a magnetic suction mechanism 3 for installing metal inserts is provided inside the mold 1, and a mold 2 4 is also provided on the mold 1.
[0030] A guide rod 11 is fixedly connected to the right side surface of mold 1, and a mold base 12 is fixedly connected to the outside of the guide rod 11. Mold 2 4 is slidably sleeved on the outside of the guide rod 11.
[0031] The magnetic attraction mechanism 3 includes a mounting groove 31, which is located inside the mold base 12. An electromagnet 32 is installed inside the mounting groove 31. A fixing groove 33 is also provided on the mold base 12. A template 34 is fixedly connected inside the fixing groove 33 by screws. By setting up the magnetic attraction mechanism 3, the electromagnet 32 generates a magnetic field through a coil, which can quickly attract and fix the metal insert. This significantly improves the installation efficiency of the metal insert, and at the same time, it eliminates the need to process additional complex mechanical clamping structures on the mold, thereby reducing the mold manufacturing cost.
[0032] Electromagnet 32 is a DC electromagnet with a stable magnetic field and an attraction force that can be controlled by current.
[0033] Template 34 is a nickel-based alloy material with good magnetic field penetration and high temperature resistance.
[0034] Specifically, firstly, the electromagnet 32 is installed in the mounting groove 31 of the mold base 12. Then, the template 34 is fixed in the fixing groove 33 with screws, which serves to limit and fix the electromagnet 32. At the same time, the template 34 is made of nickel-based alloy material with good magnetic field penetration and high temperature resistance to avoid the magnetic field weakening and resulting in poor magnetic attraction effect. Finally, by energizing the electromagnet 32 and placing the metal insert on the surface of the template 34, the adsorption and fixing effect of the metal insert is achieved.
[0035] Please see Figure 1 , Figures 3 to 5 As a second embodiment of this utility model:
[0036] The ejection mechanism 2 includes a connecting plate 21, on which an ejector rod 22 is fixedly connected. A spring 23 is provided on the outside of the ejector rod 22. By setting the ejection mechanism 2, the ejector rod 22 automatically ejects the molded plastic part from the mold cavity, thereby realizing rapid demolding of the plastic part and improving production efficiency.
[0037] A cylinder 26 is fixedly installed on the left side surface of mold 1, and the telescopic end of the cylinder 26 is fixedly connected to the connecting plate 21.
[0038] Through holes 35 are provided on the connecting plate 21, the electromagnet 32 and the template 34. The top rod 22 slides through the inside of the through hole 35 and its right end face is parallel to the right side surface of the template 34.
[0039] A connecting block 24 is slidably sleeved on the outside of the push rod 22. An anti-loosening nut 25 is connected to the connecting block 24 via a bearing. The anti-loosening nut 25 is screwed onto the outside of the push rod 22 via a thread.
[0040] One end of the spring 23 is fixedly connected to the connecting plate 21, and the other end of the spring 23 is fixedly connected to the connecting block 24. The elastic force of the spring 23 can prevent the cylinder rod from being displaced due to vibration after reset. At the same time, the anti-loosening nut 25 can be rotated to make it abut against the connecting block 24 to generate displacement and squeeze the spring 23, thereby changing the compression state of the spring 23 to adjust the preload of the spring 23.
[0041] Based on the above embodiments, further, after injection molding is completed, the cylinder 26 is activated. The telescopic end of the cylinder 26 drives the connecting plate 21 and the ejector rod 22 to move, so as to automatically eject the injection-molded product and realize the rapid demolding of the plastic part. When it is necessary to adjust the preload of the spring 23, the anti-loosening nut 25 is rotated. The anti-loosening nut 25 and the ejector rod 22 generate threaded movement, thereby driving the connecting block 24 to move and compress the spring 23, changing the compression state of the spring 23, so as to achieve the function of adjusting the preload of the spring 23.
[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An injection mold apparatus that facilitates installation of a metal insert, comprising: Mold 1 (1), characterized in that the mold 1 (1) is provided with an ejection mechanism (2) for easy demolding, the mold 1 (1) is provided with a magnetic suction mechanism (3) for installing metal inserts, and the mold 1 (1) is also provided with a mold 2 (4). A guide rod (11) is fixedly connected to the right side surface of the first mold (1), and a mold base (12) is fixedly connected to the outside of the guide rod (11). The second mold (4) is slidably sleeved on the outside of the guide rod (11). The magnetic attraction mechanism (3) includes a mounting groove (31), which is located inside the mold base (12). An electromagnet (32) is installed inside the mounting groove (31). A fixing groove (33) is also provided on the mold base (12). A template (34) is fixedly connected inside the fixing groove (33) by screws.
2. The injection mold equipment for easy installation of metal inserts as described in claim 1, characterized in that: The electromagnet (32) is a DC electromagnet with a stable magnetic field and an adsorption force that can be controlled by current.
3. The injection mold equipment for easy installation of metal inserts as described in claim 1, characterized in that: The template (34) is a nickel-based alloy material with good magnetic field penetration and high temperature resistance.
4. The injection mold equipment for easy installation of metal inserts as described in claim 1, characterized in that: The ejection mechanism (2) includes a connecting plate (21), on which a push rod (22) is fixedly connected, and a spring (23) is provided on the outer side of the push rod (22).
5. The injection mold equipment for easy installation of metal inserts as described in claim 4, characterized in that: A cylinder (26) is fixedly installed on the left side surface of the mold (1), and the telescopic end of the cylinder (26) is fixedly connected to the connecting plate (21).
6. The injection mold equipment for facilitating the installation of metal inserts as described in claim 4, characterized in that: The connecting plate (21), electromagnet (32) and template (34) are all provided with through holes (35), and the top rod (22) slides through the inside of the through hole (35) and its right end face is parallel to the right side surface of the template (34).
7. The injection mold equipment for facilitating the installation of metal inserts as described in claim 6, characterized in that: A connecting block (24) is slidably sleeved on the outside of the top rod (22). An anti-loosening nut (25) is connected to the connecting block (24) via a bearing. The anti-loosening nut (25) is screwed onto the outside of the top rod (22) by a thread.
8. The injection mold equipment for easy installation of metal inserts as described in claim 4, characterized in that: One end of the spring (23) is fixedly connected to the connecting plate (21), and the other end of the spring (23) is fixedly connected to the connecting block (24).