Insert injection molding flexible mold structure

Abstract

The utility model relates to the field of insert injection molding, concretely to a kind of insert injection molding flexible mold closing structure, including material band terminal, material band terminal upper end is provided with female die die core glue sealing part, flexible elastic pressing piece is installed in female die die core glue sealing part inside corresponding material band terminal upper part position, linear spring for elastic conduction is installed in the top of flexible elastic pressing piece, material band terminal lower end is provided with male die die core glue sealing part.The utility model utilizes flexible mechanism to simulate human arm pressing posture, and material band terminal is pressed into mould flexibly, to ensure that terminal effectively and completely falls into die core glue sealing groove, and simultaneously, in combination with the R angle excess of R0.03 PG processing of glue sealing PIN tooth part, the production efficiency and product quality of insert forming can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of insert injection molding, and in particular to a flexible mold closing structure for insert injection molding. Background Technology

[0002] In the field of insert molding, traditional automated feeding systems mainly rely on gravity and inertia to position metal terminals. However, this approach has significant limitations for thin, wide-pitch terminal structures. Specifically, the terminal's own weight and inertia cannot overcome the displacement deviation caused by the large step distance, resulting in the terminal not accurately falling into the sealing groove of the mold core. Furthermore, thin terminals are prone to deformation during high-speed stamping, further exacerbating positioning errors. In existing mold designs, the toothed structure of the sealing mold core generally uses a large radius (e.g., R0.05 or higher), which easily creates jamming points during terminal unloading, causing terminal wire breakage or mold core damage. Forcing mold closing before the terminal is fully in place causes a rigid impact between the terminal and the mold core due to injection pressure, leading not only to metal shavings and burrs on the plastic part, but also wear on the mold parting surface and reduced mold closing accuracy, seriously affecting equipment lifespan and production safety. Simultaneously, traditional processes lack dynamic compensation mechanisms, making it difficult to adapt to dimensional fluctuations in different batches of terminals, requiring frequent shutdowns for adjustments, resulting in low production efficiency. These problems are particularly prominent in fields such as consumer electronics and automotive electronics, which have stringent requirements for terminal precision, and have become the main bottleneck restricting the development of insert injection molding technology toward high precision and high reliability. Utility Model Content

[0003] The purpose of this invention is to provide an insert injection molding flexible mold closing structure to solve the above problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A flexible mold clamping structure for insert injection molding includes a strip terminal, a female mold core sealing part is provided at the upper end of the strip terminal, a flexible spring is installed in the female mold core sealing part corresponding to the position of the part on the strip terminal, a linear spring for elastic transmission is installed on the top of the flexible spring, and a male mold core sealing part is provided at the lower end of the strip terminal.

[0006] Preferably, the flexible elastic component is divided into a force-receiving section and a pressure-applying section.

[0007] Preferably, the flexible spring-loaded component is slidably connected within the sealing component of the master mold core.

[0008] Preferably, the linear spring is sleeved on the force-bearing section of the flexible elastic member, and the bottom of the linear spring cooperates with the limiting ring of the force-bearing section of the flexible elastic member.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] In the injection molding process of inserts, the stamped metal terminals are automatically fed and pulled into the mold by an automatic feeding and pulling mechanism. Due to the large pitch and thinness of the terminals, their own weight and inertia prevent them from falling completely and effectively into the mold core sealing groove when they enter the mold. Forcing the mold to close in this state can lead to damage to the terminals, the terminal wires, and the sealing parts of the female and male mold cores, posing a production safety hazard. At this time, a flexible mechanism is used to simulate the pressing posture of a human arm to flexibly press the terminal strip into the mold, ensuring that the terminal falls completely and effectively into the mold core sealing groove. At the same time, combined with the R0.03 R angle transition of the sealing PIN tooth part PG, the production efficiency and product quality of insert molding can be greatly improved. Attached Figure Description

[0011] 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.

[0012] Figure 1 This is a schematic diagram of the flexible mold closing structure for insert injection molding described in this utility model;

[0013] Figure 2 This is a top view of the overall structure of the insert injection molding flexible mold closing structure described in this utility model;

[0014] Figure 3 This is a schematic diagram of the contact state structure of the insert injection molding flexible mold closing structure described in this utility model;

[0015] Figure 4 This utility model describes a flexible mold closing structure for insert injection molding. Figure 3 Enlarged view of point A in the middle;

[0016] Figure 5 This utility model describes a flexible mold closing structure for insert injection molding. Figure 4 Enlarged view of point D;

[0017] Figure 6 This is a schematic diagram of the flexible press-fit mold state structure of the insert injection molding flexible mold closing structure described in this utility model;

[0018] Figure 7 This utility model describes a flexible mold closing structure for insert injection molding. Figure 6 Enlarged view of point B in the middle;

[0019] Figure 8 This utility model describes a flexible mold closing structure for insert injection molding. Figure 7 Enlarged view of point E in the middle;

[0020] Figure 9 This is a schematic diagram of the mold closing position structure of the insert injection molding flexible mold closing structure described in this utility model;

[0021] Figure 10 This utility model describes a flexible mold closing structure for insert injection molding. Figure 9 Enlarged view of point C in the middle;

[0022] Figure 11 This utility model describes a flexible mold closing structure for insert injection molding. Figure 10 Enlarged diagram of point F in the middle.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1. Flexible spring-loaded components; 2. Linear springs; 3. Material strip terminals; 4. Sealing parts for female mold cores; 5. Sealing parts for male mold cores. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and 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," "second," etc., 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, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1-11 As shown, an insert injection molding flexible mold closing structure includes a strip terminal 3, a female mold core sealing part 4 is provided at the upper end of the strip terminal 3, a flexible spring 1 is installed in the female mold core sealing part 4 corresponding to the part position on the strip terminal 3, a linear spring 2 for elastic transmission is installed on the top of the flexible spring 1, and a male mold core sealing part 5 is provided at the lower end of the strip terminal 3.

[0029] Preferably, the flexible elastic component 1 is divided into a force-bearing section and a pressure-applying section.

[0030] Preferably, the flexible spring-loaded component 1 is slidably connected within the sealing component 4 of the female mold core.

[0031] Preferably, the linear spring 2 is sleeved on the force-bearing section of the flexible spring 1, and the bottom of the linear spring 2 cooperates with the limiting ring on the force-bearing section of the flexible spring 1.

[0032] Working principle: When the automatic feeding machine completes the feeding action, the floating plate mechanism in the mold drives the material strip terminal to fall; during the mold closing process, the flexible spring part 1, under the push of the linear spring 2, contacts the material strip terminal 3 in advance;

[0033] During further mold closing, the linear spring 2 continues to provide flexible spring force to push the flexible spring element 1; causing the flexible spring element 1 to press the material strip terminal 3 slowly into the male mold core sealing part 5;

[0034] Continue to close the mold until the female mold core sealing part 4 is in place, completing the entire mold closing action. Using the flexible spring 1, which is pushed by the linear spring 2, it simulates the pressing posture of a human arm and flexibly presses the material strip terminal into the male mold core sealing part 5, ensuring that the terminal effectively and completely falls into the mold core sealing groove of the male mold core sealing part 5.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A flexible mold clamping structure for insert injection molding, characterized in that: The device includes a material strip terminal (3), a female mold core sealing part (4) is provided at the upper end of the material strip terminal (3), a flexible spring pressure part (1) is installed in the female mold core sealing part (4) corresponding to the part position on the material strip terminal (3), a linear spring (2) for elastic transmission is installed on the top of the flexible spring pressure part (1), and a male mold core sealing part (5) is provided at the lower end of the material strip terminal (3).

2. The insert injection molding flexible mold closing structure according to claim 1, characterized in that: The flexible elastic component (1) is divided into a force-bearing section and a pressure-applying section.

3. The insert injection molding flexible mold closing structure according to claim 2, characterized in that: The flexible spring-loaded component (1) is slidably connected inside the sealing component (4) of the master mold core.

4. The insert injection molding flexible mold closing structure according to claim 1, characterized in that: The linear spring (2) is sleeved on the force-bearing section of the flexible spring (1), and the bottom of the linear spring (2) cooperates with the limiting ring of the force-bearing section of the flexible spring (1).

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