Novel strong magnetic mold ejector pin reset confirmation switch
Through the strong magnetic mold thimble reset confirmation switch, automatic detection and confirmation of the mold thimble plate is realized, solving the problems of fatigue, high cost, and difficulty in standardized installation of traditional devices, and improving production safety and efficiency.
Patent Information
- Application Number
- CN202422349714.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-26
AI Technical Summary
Traditional mold thimble plate reset devices are prone to fatigue, high cost, difficult to standardize installation, and lack intelligent monitoring, which poses a risk of mold damage and production accidents.
The thimble reset confirmation switch is used for the strong magnetic mold, and the strong magnet is adsorbed on the moving template, combined with the limit guide rail and the moving mechanism, the automatic detection and confirmation of the thimble plate is realized, and communication with the injection molding machine control system through electrical signals.
Ensure that the mold locking instruction is sent after the thimble plate is completely returned, preventing mold damage, reducing installation complexity and cost, improving production safety and efficiency, and enhancing the adaptability and sensitivity of the device.
Smart Images

Figure CN223071896U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molding equipment, in particular to a new type of strong magnetic mold ejector pin reset confirmation switch. Background Technique
[0002] In the automated production process of injection molding machine molds, the monitoring of the reset state of the ejector pin plate is an important link to ensure the safety of the mold; in traditional technologies, the reset of the mold ejector pin plate usually relies on return springs or external return mechanisms to achieve. Although these methods can achieve the reset of the ejector pin plate, the springs are prone to fatigue and have a service life limit, while the external return mechanisms have high processing costs and are not applicable to all molds, making it difficult to achieve standardized installation; in addition, during the transportation or hoisting of the mold, the traditional device may not be able to effectively prevent the accidental movement of the ejector pin plate, increasing the risk of mold damage; mechanical reset devices such as springs may fail after long-term use and are difficult to adapt to different models of injection molding machines and molds, requiring frequent manual intervention and maintenance; although the external return mechanism can provide a more stable reset force, its installation is complex, costly, and difficult to install in occasions with limited space; in addition, the traditional device lacks an intelligent monitoring and feedback mechanism and cannot provide the reset state of the ejector pin plate to the injection molding machine control system in a timely and accurate manner, posing potential risks of misoperation and production accidents; therefore, a new type of ejector pin plate reset confirmation switch is needed, which can automatically detect the reset state of the ejector pin plate and communicate with the injection molding machine control system through electrical signals to improve the safety and efficiency of production. Content of the Utility Model
[0003] The purpose of the utility model is to provide a new type of strong magnetic mold ejector pin reset confirmation switch to solve the problems raised in the background technique.
[0004] To achieve the above purpose, the utility model provides the following technical solution: a new type of strong magnetic mold ejector pin reset confirmation switch, including: an adsorption component, one end of the adsorption component is adsorbed on the moving template of the injection molding machine; a limit guide rail, the end of the limit guide rail is arranged at the other end of the adsorption component; a moving mechanism, the moving mechanism is movably arranged on the limit guide rail; a detection switch, the detection switch is arranged on one side of the moving mechanism.
[0005] In a feasible implementation manner, the detection switch is electrically connected in series with the ejector pin of the injection molding machine.
[0006] In a feasible implementation manner, a moving groove for restricting the moving range is opened on one side of the limit guide rail.
[0007] In a feasible implementation manner, the moving mechanism includes: a slider movably arranged on a limiting guide rail; an adjusting screw screwed onto the slider; and a limiting block arranged at the bottom end of the adjusting screw and matching and clamping with a moving groove.
[0008] In a feasible implementation manner, the adsorption assembly and the limiting guide rail are connected in a detachable connection manner.
[0009] In a feasible implementation manner, the adsorption assembly is a strong magnet.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: The device triggers a detection switch after the ejector pin plate of the mold completely retracts, ensuring that a mold clamping instruction is sent to the machine only when the ejector pin plate completely retracts, effectively preventing mold clamping operations when it is not fully retracted, thereby protecting the mold and reducing the risks of equipment damage and production accidents.
[0011] Using a strong magnet as the adsorption assembly eliminates the step of drilling holes in the mold for installation, simplifies the installation process, reduces the damage to the injection molding machine and the complexity of installation. It saves costs and reduces the maintenance costs of the traditional multi-point and multi-switch configuration. The design of strong magnet adsorption makes the device have good adaptability, can adapt to injection molding machines of different models and sizes, and improves its versatility. The detachable connection method provides convenience for maintaining and replacing components, helps reduce downtime, and improves production efficiency. In addition, the modular design of the device enables it to be conveniently disassembled and assembled when it needs to be moved or stored, facilitating transportation and storage and reducing logistics costs.
[0012] The device does not directly contact the mold, avoids failures caused by contact wear, and enhances the stability and reliability of production. Since it can be directly adsorbed on the moving template of the machine, the operation steps are simplified, and the convenience of equipment debugging and daily operation is improved. The high sensitivity of the detection switch ensures the rapid and accurate transmission of signals, improving the speed and accuracy of the mold clamping action of the machine. Through its innovative design, the device improves production efficiency and operation convenience, reduces costs, and reduces downtime while ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0014] Figure 2 is an axonometric structural schematic diagram of the present utility model.
[0015] In the figure: 1, adsorption assembly; 2, limiting guide rail; 3, detection switch; 4, moving groove; 5, slider; 6, adjusting screw; 7, limiting block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0017] Please refer to Figures 1 to 2 , the present utility model provides a technical solution: a new type of strong magnetic mold ejector pin reset confirmation switch, including: an adsorption component 1, a limit guide rail 2, a moving mechanism, and a detection switch 3. One end of the adsorption component 1 is adsorbed on the moving template of the injection molding machine; the end of the limit guide rail 2 is arranged at the other end of the adsorption component 1; the moving mechanism is movably arranged on the limit guide rail 2; the detection switch 3 is arranged on one side of the moving mechanism and is electrically connected in series with the ejector pin of the injection molding machine.
[0018] In the specific implementation process, further, one end of the adsorption component 1 is firmly adsorbed on the moving template of the injection molding machine through its strong magnetic force characteristic, ensuring that the entire device is stably fixed on the machine. Then, the end of the limit guide rail 2 is connected to the other end of the adsorption component 1, providing a track for guiding the moving mechanism and restricting its moving range. The moving mechanism slides freely along the limit guide rail 2 and can adjust its position according to the specific size of the mold to ensure that the detection switch 3 can accurately align with the position of the mold ejector pin. After adjusting to the appropriate position, it is fixed at the required position through the moving mechanism. The detection switch 3 is installed on one side of the moving mechanism. When the mold ejector pin completely retracts after the injection molding process ends, the detection switch 3 will sense the presence of the ejector pin and send an electrical signal to the injection molding machine. If the ejector pin plate does not completely retract, the detection switch 3 will not sense the signal, and at this time, the injection molding machine will not receive the mold clamping instruction, thus preventing the mold from being clamped when the ejector pin is not completely retracted and protecting the safety of the mold. This process realizes the automatic detection and confirmation of the reset state of the mold ejector pin, improving production efficiency and safety. Among them, the detection switch 3 is a metal proximity switch, which will output a signal when it senses metal. The ejector pin plate belongs to metal, so it can sensitively detect whether the ejector pin plate has returned. This device is easy to install and saves costs. Only one needs to be installed on one machine, and the switch does not need to contact the mold. It has high sensitivity and strong stability. Previously, each set of molds needed to be installed, and wiring was frequent. It was easy to break due to the collision of the ejector pin plate, with low sensitivity and high cost.
[0019] In some examples, furthermore, the detection switch 3 is electrically connected in series with the ejector pin of the injection molding machine. When the detection switch 3 is electrically connected in series with the ejector pin of the injection molding machine and the ejector plate is fully retracted to trigger the detection switch 3, the activation of the detection switch 3 will send a signal to the injection molding machine to inform it that the ejector pin has been reset. If the ejector plate is not fully retracted, the detection switch 3 will remain deactivated, and the injection molding machine will not receive the instruction to close the mold, which can prevent the mold from being damaged due to the incomplete reset of the ejector pin before the start of the next injection cycle. This ensures the safety of the mold, improves production efficiency, and reduces the risk of equipment failure caused by improper operation.
[0020] In some examples, furthermore, a moving groove 4 for restricting the moving range is provided on one side of the limiting guide rail 2. The moving groove 4 is used to restrict the moving range of the moving mechanism to ensure that the detection switch 3 can accurately align with the position of the ejector plate. By adjusting the moving mechanism, molds of different sizes can be adapted to ensure the correct position of the detection switch 3.
[0021] In some examples, furthermore, the moving mechanism includes: a slider 5, an adjusting screw 6, and a limiting block 7. The slider 5 is movably arranged on the limiting guide rail 2; the adjusting screw 6 is screwed on the slider 5; the limiting block 7 is arranged at the bottom end of the adjusting screw 6 and is matched and clamped with the moving groove 4.
[0022] In the specific implementation process, furthermore, the slider 5 is movably arranged on the limiting guide rail 2, ensuring the flexibility and adaptability of the mechanism. The slider 5 slides along the moving groove 4 of the limiting guide rail 2. The moving groove 4 not only provides guidance for the slider 5 but also restricts its moving range to prevent the slider 5 from moving excessively. The function of the adjusting screw 6 is to adjust the position of the slider 5 to ensure that the detection switch 3 can accurately align with the ejector plate. By tightening or loosening the adjusting screw 6, the position of the slider 5 can be adjusted until the detection switch 3 reaches the optimal working state. The limiting block 7 is matched and clamped with the moving groove 4. After the slider 5 moves to the appropriate position, the clamping effect of the limiting block 7 and the moving groove 4 can fix the slider 5 to prevent it from displacing during the operation of the injection molding machine. Even during a long production process, the slider 5 can remain in the set position, ensuring the stability and reliability of the detection switch 3.
[0023] The entire working process is as follows: The slider 5 moves to the appropriate position on the limiting guide rail 2, is adjusted by the adjusting screw 6, and finally the slider 5 is fixed by the clamping of the limiting block 7 and the moving groove 4 to complete the setting of the moving mechanism. This ensures that the detection switch 3 can accurately detect the reset state of the ejector plate, thereby ensuring the smooth operation of the injection molding machine and the safety of the mold.
[0024] In some examples, furthermore, the adsorption component 1 and the limit guide rail 2 are connected by a detachable connection method. The detachable connection method greatly facilitates the disassembly and assembly process. Users can easily remove the adsorption component 1 for necessary maintenance or replacement without having to make large-scale adjustments or disassembly to the entire system. This significantly improves the maintenance efficiency. When components are damaged or require regular maintenance, specific components can be quickly located and replaced, reducing the maintenance time and cost.
[0025] In some examples, furthermore, the adsorption component 1 is a strong magnet. Using a strong magnet as the adsorption component 1 eliminates the step of drilling holes for installation on the injection molding machine, simplifies the installation process, and reduces the damage to the injection molding machine and the complexity of installation.
[0026] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front part", "both ends", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly specified and limited, terms such as "set", "installed", "connected", "fixedly installed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A new type of strong magnetic mold ejector pin reset confirmation switch, characterized in that, Comprising: An adsorption component, one end of which is adsorbed on the moving template of the injection molding machine; A limit guide rail, the end of which is arranged at the other end of the adsorption component; A moving mechanism, which is movably arranged on the limit guide rail; A detection switch, which is arranged on one side of the moving mechanism.
2. The novel strong magnetic mold ejector pin reset confirmation switch according to claim 1, characterized in that: The detection switch is electrically connected in series with the ejector pin of the injection molding machine.
3. A novel strong magnetic die ejector pin reset confirmation switch according to claim 1, characterized in that: A moving groove for restricting the moving range is formed on one side of the limit guide rail.
4. A novel strong magnetic mold ejector pin reset confirmation switch according to claim 1, characterized in that: The moving mechanism includes: A slider, which is movably arranged on the limit guide rail; An adjusting screw, which is screwed on the slider; A limit block, which is arranged at the bottom end of the adjusting screw and is matched and clamped with the moving groove.
5. A novel strong magnetic mold ejector pin reset confirmation switch according to claim 1, characterized in that: The adsorption component and the limit guide rail are connected in a detachable connection manner.
6. A novel strong magnetic mold ejector pin reset confirmation switch according to claim 1, characterized in that: The adsorption component is a strong magnet.