Die for producing automobile electric appliance connector

Abstract

The utility model relates to the field of molds, and discloses an automobile electric appliance connector production mold which comprises a base, a lower mold is fixedly mounted at the bottom of the inner side of the base, and a circular groove is formed in the bottom of the lower mold; the ejector plate is arranged in the lower die, so that when a product is discharged, a pressing plate is pressed downwards to promote a connecting rod to generate a lever principle under the action of a fixed concave plate, and the other end of the connecting rod is tilted to drive a movable column and the ejector plate to move upwards; a plurality of reset springs are driven to stretch when an ejector plate and a movable column move upwards, and after material ejection is finished, a pressing plate is loosened to enable the movable column and the ejector plate to move upwards under the action of the reset springs, so that the product is rapidly ejected out of the lower mold, and the demolding time is greatly shortened. And the device can be automatically reset to the initial position to prepare for the next injection molding period, so that the flexibility of the device is enhanced.

Description

Technical Field

[0001] The present application relates to the field of molds, and in particular to a mold for producing automotive electrical connectors. Background Art

[0002] Plastic molding is a process of producing parts made of thermoplastic plastics or thermosetting plastics. It is to heat and melt the plastic (usually granules) in the barrel of the injection molding machine. When it is in a flowing state, the molten plastic is compressed and moved forward under the pressure of the plunger or screw, and then injected into the closed mold with a lower temperature at a very fast speed through the nozzle at the front of the barrel. After a certain period of cooling and shaping, the mold is opened to obtain the product. Automotive electrical connector products usually need to be processed using molds during the processing;

[0003] Most of the existing molds for producing automotive electrical connectors are manually demolded and removed, which results in a lot of time wasted during demolding, thereby reducing the production efficiency of electrical connectors. Therefore, we urgently need to provide a mold for producing automotive electrical connectors.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that manual demoulding and material removal will waste a lot of time during demoulding, thereby reducing the production efficiency of electrical connectors, the present application provides a mold for the production of automotive electrical connectors.

[0006] The present application provides a mold for producing automotive electrical connectors using the following technical solution:

[0007] A mold for producing automotive electrical connectors comprises a base, a lower mold is fixedly installed on the inner bottom of the base, a circular groove is opened at the bottom of the lower mold, the upper end of the circular groove is connected to the internal cavity of the lower mold, a ejection plate is provided at the inner upper end of the circular groove, a movable column is fixedly connected to the bottom of the ejection plate, a plurality of return springs are evenly provided on the surface of the movable column, the upper ends of the plurality of return springs are fixedly installed on the inner upper end of the circular groove, a connecting seat is fixedly connected to the bottom of the movable column, a connecting rod is movably connected to the inner side of the bottom of the connecting seat, a fixed concave plate is provided in the middle of the connecting rod, and a pressing plate is fixedly connected to the other end of the connecting rod.

[0008] Preferably, the fixed concave plate is fixedly installed on the bottom of the base, and rotating rods are fixedly connected to both sides of the middle of the connecting rod, and the other ends of the two rotating rods are respectively rotatably connected to the inner side of the upper end of the fixed concave plate.

[0009] Preferably, the diameter of the top plate is set equal to the upper end of the circular groove.

[0010] Preferably, a hydraulic cylinder is installed at the upper end of the base, an output end of the hydraulic cylinder passes through the base and is connected to a telescopic rod, and an upper mold is fixedly connected to the bottom of the telescopic rod.

[0011] Preferably, positioning holes are provided at four corners of the upper end of the lower mold, and positioning rods are evenly installed at four corners of the bottom of the upper mold.

[0012] Preferably, an ejection spring is provided at the inner bottom of the positioning hole, and the positioning rod is plug-connected to the inside of the positioning hole.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. By setting a ejector plate inside the lower mold, when the product is ejected, by pressing the pressing plate downward, the connecting rod is caused to produce a lever principle under the action of the fixed concave plate, so that the other end of the connecting rod is tilted and the movable column and the ejector plate are driven to move upward, so that the cooled and molded product is quickly ejected from the lower mold, which greatly shortens the demoulding time and improves production efficiency. When the ejector plate and the movable column move upward, multiple return springs are driven to stretch. After the ejection is completed, the pressing plate is released so that the movable column and the ejector plate can automatically return to the initial position under the action of the return spring, so as to prepare for the next injection cycle and enhance the flexibility of the device;

[0015] 2. By respectively setting positioning holes and positioning rods on the connecting surfaces of the upper mold and the lower mold, the positioning holes and the positioning rods can accurately align the upper and lower molds to ensure that the position and shape of the mold cavity are completely consistent, which is conducive to ensuring the dimensional accuracy and molding quality of the product. At the same time, when the upper and lower molds are fixed, the bottom of the positioning rod squeezes the ejector spring. When the upper and lower molds are released after the product is injection molded, the reset effect of multiple ejector springs will push the upper mold upward, thereby realizing the separation of the upper and lower molds and improving the discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of an embodiment of the application;

[0017] Figure 2 is a schematic diagram of a top view of the lower mold structure of an embodiment of the application;

[0018] Figure 3 is a schematic diagram of the bottom structure of the lower mold of the application embodiment;

[0019] Figure 4 It is an application example Figure 3 Enlarged structural diagram at A in the middle.

[0020] Explanation of the accompanying drawings: 1. Base; 2. Lower mold; 3. Upper mold; 4. Positioning hole; 5. Ejector spring; 6. Positioning rod; 7. Circular groove; 8. Ejector plate; 9. Movable column; 10. Return spring; 11. Connecting seat; 12. Connecting rod; 13. Fixed concave plate; 14. Rotating rod; 15. Pressing plate; 16. Hydraulic cylinder; 17. Telescopic rod. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] The present application embodiment discloses a mold for producing automotive electrical connectors, referring to Figure 1-Figure 4 , comprising a base 1, a lower mold 2 is fixedly installed on the inner bottom of the base 1, a circular groove 7 is opened at the bottom of the lower mold 2, the upper end of the circular groove 7 is connected to the internal cavity of the lower mold 2, a top plate 8 is arranged at the inner upper end of the circular groove 7, and a movable column 9 is fixedly connected to the bottom of the top plate 8. By arranging the top plate 8 inside the lower mold 2, when the product is discharged, the pressing plate 15 is pressed to drive the movable column 9 and the top plate 8 to move upward, so that the cooled and formed product is quickly ejected from the lower mold 2, greatly shortening the demoulding time and improving the production efficiency. A plurality of reset springs 10 are evenly arranged on the surface of the movable column 9, and the upper ends of the plurality of reset springs 10 are fixedly installed at the inner upper end of the circular groove 7. When the movable column 9 moves upward, it drives multiple return springs 10 to stretch. After the ejection is completed, the pressing plate 15 is released so that the movable column 9 and the ejection plate 8 can automatically return to the initial position under the action of the return spring 10, ready for the next injection molding cycle, and enhancing the flexibility of the device. The bottom of the movable column 9 is fixedly connected with a connecting seat 11, and the inner side of the bottom of the connecting seat 11 is movably connected with a connecting rod 12. A fixed concave plate 13 is provided in the middle of the connecting rod 12, and the other end of the connecting rod 12 is fixedly connected with a pressing plate 15. By pressing the pressing plate 15 downward, the connecting rod 12 is prompted to produce a lever principle under the action of the fixed concave plate 13, so that the other end of the connecting rod 12 is tilted to drive the movable column 9 and the ejection plate 8 to move upward.

[0023] Reference Figure 2-Figure 3 The fixed concave plate 13 is fixedly installed at the bottom of the base 1, and rotating rods 14 are fixedly connected to both sides of the middle of the connecting rod 12. The other ends of the two rotating rods 14 are rotatably connected to the inner side of the upper end of the fixed concave plate 13. Through the cooperation of the rotating rod 14 and the fixed concave plate 13, a lever principle is generated when one end of the connecting rod 12 is pressed downward, which facilitates the demoulding of the product. The diameter of the ejector plate 8 is equal to the upper end of the circular groove 7, so that during the injection molding process, the connection between the circular groove 7 and the ejector plate 8 is more tightly connected, avoiding leakage of injection molding materials and waste.

[0024] Reference Figure 1-Figure 2A hydraulic cylinder 16 is installed at the upper end of the base 1. The output end of the hydraulic cylinder 16 passes through the base 1 and is connected with a telescopic rod 17. The bottom of the telescopic rod 17 is fixedly connected with the upper mold 3. The hydraulic cylinder 16 is used to drive the upper mold 3 to move downward, so that the upper mold 3 and the lower mold 2 are connected. Positioning holes 4 are opened at the four corners of the upper end of the lower mold 2. Positioning rods 6 are evenly installed at the four corners of the bottom of the upper mold 3. By respectively arranging positioning holes 4 and positioning rods 6 on the connecting surfaces of the upper mold 3 and the lower mold 2, the positioning holes 4 and the positioning rods 6 can accurately align the upper and lower molds, ensure that the position and shape of the mold cavity are completely consistent, which is conducive to ensuring the dimensional accuracy and molding quality of the product. An ejection spring 5 is provided at the bottom of the inner side of the positioning hole 4. The positioning rod 6 is plugged and connected to the inside of the positioning hole 4. At the same time, when the upper and lower molds are fixed, the bottom of the positioning rod 6 squeezes the ejection spring 5. When the upper and lower molds are fixed after the product is injection molded, the upper mold 3 is pushed upward by the reset effect of multiple ejection springs 5 ​​when the upper mold 3 and the lower mold 2 are released, thereby realizing the separation of the upper and lower molds and improving the discharge efficiency.

[0025] The implementation principle of a mold for producing automotive electrical connectors in an embodiment of the present application is as follows: when using the device, the upper mold 3 is driven down by the hydraulic cylinder 16 to connect with the lower mold 2, and the two are fixed by fixing screws. At this time, the material is injected into the lower mold 2 through the external injection head. When the processed automotive electrical connector is completely cooled and formed, the screws fixing the upper and lower molds are removed, and under the action of the ejection spring 5, the upper mold 3 is moved upward and separated from the lower mold 2. At this time, the pressing plate 15 is pressed again so that the other end of the connecting rod 12 is lifted up under the action of the lever principle, prompting the movable column 9 to drive the ejection plate 8 to move upward, thereby quickly ejecting the formed workpiece from the lower mold 2 to complete the product discharge.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: 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 in the protection scope of the present utility model.

[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mold for producing automotive electrical connectors, comprising a base (1), characterized in that: A lower mold (2) is fixedly installed on the inner bottom of the base (1), a circular groove (7) is opened on the bottom of the lower mold (2), the upper end of the circular groove (7) is connected to the internal cavity of the lower mold (2), the inner upper end of the circular groove (7) is provided with a ejector plate (8), the bottom of the ejector plate (8) is fixedly connected with a movable column (9), a plurality of return springs (10) are evenly arranged on the surface of the movable column (9), the upper ends of the plurality of return springs (10) are fixedly installed on the inner upper end of the circular groove (7), the bottom of the movable column (9) is fixedly connected with a connecting seat (11), the inner side of the bottom of the connecting seat (11) is movably connected with a connecting rod (12), the middle part of the connecting rod (12) is provided with a fixed concave plate (13), and the other end of the connecting rod (12) is fixedly connected with a pressing plate (15).

2. A mold for producing automotive electrical connectors according to claim 1, characterized in that: The fixed concave plate (13) is fixedly mounted on the bottom of the base (1), and rotating rods (14) are fixedly connected to both sides of the middle of the connecting rod (12), and the other ends of the two rotating rods (14) are respectively rotatably connected to the inner side of the upper end of the fixed concave plate (13).

3. The mold for producing automotive electrical connectors according to claim 1, characterized in that: The diameter of the ejector plate (8) is set equal to the upper end of the circular groove (7).

4. The mold for producing automotive electrical connectors according to claim 1, characterized in that: A hydraulic cylinder (16) is installed at the upper end of the base (1); the output end of the hydraulic cylinder (16) passes through the base (1) and is connected to a telescopic rod (17); the bottom of the telescopic rod (17) is fixedly connected to an upper mold (3).

5. The mold for producing automotive electrical connectors according to claim 4, characterized in that: Positioning holes (4) are provided at the four corners of the upper end of the lower mold (2), and positioning rods (6) are evenly installed at the four corners of the bottom of the upper mold (3).

6. A mold for producing automotive electrical connectors according to claim 5, characterized in that: An ejection spring (5) is provided at the inner bottom of the positioning hole (4), and the positioning rod (6) is plugged and connected to the inside of the positioning hole (4).

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