Automobile connector terminal embedded part rubber coating mold

Abstract

The invention provides an automobile connector terminal insert rubber coating mold, and relates to the technical field of terminal insert rubber coating molds, the automobile connector terminal insert rubber coating mold comprises a lower mold plate, the bottom end of the lower mold plate is provided with a fixed seat, the four corners of the lower mold plate are provided with positioning columns, an upper mold plate is arranged above the lower mold plate, the four corners of the upper mold plate are provided with positioning holes, and the positioning columns are arranged in the positioning holes. A rubber coating injection molding assembly is installed on the inner side of the lower mold plate, an injection molding filtering assembly is arranged above the upper mold plate, and a rubber coating forming assembly is installed on the inner side of the upper mold plate. The guide rod drives the pressing plate to descend, so that the pressing block presses an injection molding material in the injection molding cavity to a certain degree, steam pockets and cavities are prevented from existing in the material, the embedding part encapsulation molding effect is ensured, meanwhile, gas and redundant materials in the injection molding process are discharged through the flow guide groove and the exhaust hole, the product quality and appearance are ensured, and the production efficiency is improved. In the pressing process, the sealing check ring can ensure the sealing performance of the mold in the injection molding process, and leakage and waste of injection molding materials are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of a rubber-coated mold for a terminal embedding part, and in particular to a rubber-coated mold for a terminal embedding part of an automobile connector. Background Art

[0002] The automotive connector terminal is the core component of the automotive connector, and is mainly responsible for completing the electrical connection function. It usually consists of a contact pair consisting of a positive contact and a negative contact, and the electrical connection is completed by the insertion of the negative and positive contacts. The automotive connector terminal insert is an important component of the automotive connector. It is usually made of metal and is used to build a bridge of communication between blocked or isolated circuits in the circuit, so that the current can flow and the circuit can achieve the predetermined function. In the production of the insert, it is usually coated with glue to improve the air tightness, conductivity, pin position accuracy, etc. of the connector to ensure the quality and performance of the product.

[0003] In the prior art, when overmolding connector terminal inserts, there is often a lack of effective filtering mechanisms, so that incompletely melted materials may be injected into the cavity, affecting the overall quality of the product. In addition, due to the certain viscosity of the material itself, the material entering the cavity is prone to problems such as uneven material distribution, bubbles and defects, resulting in low product molding quality.

[0004] Therefore, a kind of automobile connector terminal insert overmolding mold is needed. Summary of the invention

[0005] The object of the present invention is to provide a plastic overmolding mold for an automotive connector terminal insert to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rubber-coated mold for an automotive connector terminal insert, comprising a lower mold, a fixing seat is installed at the bottom end of the lower mold, positioning columns are installed at the four corners of the lower mold, an upper mold is arranged above the lower mold, positioning holes are opened at the four corners of the upper mold, a rubber-coated injection molding component is installed on the inner side of the lower mold, an injection molding filter component is arranged above the upper mold, and a rubber-coated molding component is installed on the inner side of the upper mold.

[0007] As a further improvement of the present technical solution: the overmolded injection molding component includes an injection molding cavity, a splicing groove, a splicing strip, a positioning ring, an injection molding tube, a bottom plate and a diversion hole, an injection molding cavity is opened on the inner side of the lower mold plate, a splicing groove is opened on the surface of the lower mold plate, and a splicing strip is arranged at the bottom end of the upper mold plate.

[0008] As a further improvement of the technical solution: a positioning ring is provided at the top of the upper template, an injection tube is installed on the inner side of the positioning ring, a bottom plate is welded to the bottom end of the injection tube, a diversion hole is opened on the outer side of the bottom plate, and the inner side of the bottom plate is a conical structure.

[0009] As a further improvement of the present technical solution: the injection molding filter assembly includes a connecting ring bucket, a mounting ring, a filter inner ring and a filter net, the top of the positioning ring is connected to the connecting ring bucket, the inner side of the connecting ring bucket is provided with a mounting ring, the inner side of the mounting ring is connected to the filter inner ring, and the filter net is installed inside the filter inner ring.

[0010] As a further improvement of the technical solution: the connecting ring bucket and the positioning ring are connected by threads, and the filtering inner ring and the mounting ring are connected by slots.

[0011] As a further improvement of the technical solution: the overmolding component includes a mounting groove, a pressure plate, a guide rod, a pressure block, a guide groove, an exhaust hole, an outlet groove and a sealing ring. A mounting groove is opened on the inner side of the upper template, and a pressure plate is installed on the inner side of the mounting groove. The four sides of the pressure plate are in contact with the inner wall of the mounting groove. Guide rods are welded at the four corners of the pressure plate, and the guide rods pass through the surface of the upper template.

[0012] As a further improvement of the technical solution: a pressing block is arranged at the bottom end of the pressing plate, and the pressing block corresponds to the shape of the injection cavity.

[0013] As a further improvement of the technical solution: a guide groove is provided on the side surface of the pressing block, and exhaust holes are provided on the left and right sides of the inner wall of the injection cavity.

[0014] As a further improvement of the technical solution: a lead-out groove is provided at the inner front end of the injection cavity, and a sealing retaining ring is movably connected to the inner side of the lead-out groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By setting up the overmolding injection molding component and the injection molding filter component, the conical structure on the bottom plate can ensure that the injection molding material is evenly distributed in the injection molding cavity during the injection molding process, thereby improving the uniformity of injection molding and the molding quality of the product. In addition, the setting of the diverter hole can further optimize the flow path of the injection molding material, reduce bubbles and defects during the injection molding process, and further improve the quality of the product. At the same time, during the injection molding process, the injection molding material is filtered to a certain extent through the filter net to avoid the presence of unmelted material inside the injection molding material, thereby ensuring the uniformity of the injection material and the overmolding effect. The threaded connection design between the connecting ring bucket and the positioning ring not only ensures the stable installation of the connecting ring bucket and the filter inner ring, but also facilitates the later disassembly and maintenance, and facilitates the installation of the connecting ring bucket according to specific conditions, thereby improving the flexibility of use.

[0017] Through the setting of the overmolding component, the pressure plate is driven down by the guide rod, so that the pressure block can press the injection material in the injection cavity to a certain extent, avoiding the existence of steam bags and cavities in the material, ensuring the overmolding effect of the embedded parts, and at the same time, the gas and excess material in the injection molding process are discharged through the guide groove and the exhaust hole to ensure the quality and appearance of the product. During the pressing process, the sealing ring can ensure the sealing of the mold during the injection molding process, avoid leakage and waste of injection molding materials, and prevent over-range overmolding of terminal embedded parts to ensure product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall split structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the internal structure of the lower template of the present invention;

[0021] Figure 4 It is a schematic diagram of the matching structure of the upper template, the positioning ring and the connecting ring bucket of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the injection molding filter assembly of the present invention;

[0023] Figure 6 It is a schematic diagram of the internal structure of the upper template of the present invention;

[0024] Figure 7 It is a schematic diagram of the overall front section structure of the present invention;

[0025] Figure 8 For the present invention Figure 7 Enlarged structural diagram at A in the middle.

[0026] In the figure: 1. lower template; 2. fixing seat; 3. positioning column; 4. upper template; 5. positioning hole; 6. rubber-coated injection molding component; 601. injection molding cavity; 602. splicing groove; 603. splicing card strip; 604. positioning ring; 605. injection molding tube; 606. bottom plate; 607. diversion hole; 7. injection molding filter component; 701. connecting ring bucket; 702. mounting ring; 703. filter inner ring; 704. filter screen; 8. rubber-coated molding component; 801. mounting groove; 802. pressure plate; 803. guide rod; 804. pressure block; 805. guide groove; 806. exhaust hole; 807. lead-out groove; 808. sealing retaining ring. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0028] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] See also Figure 1-8 The present invention provides a technical solution: a rubber-coated mold for an automotive connector terminal insert, comprising a lower template 1, a fixing seat 2 is installed at the bottom end of the lower template 1, positioning columns 3 are installed at the four corners of the lower template 1, an upper template 4 is arranged above the lower template 1, positioning holes 5 are opened at the four corners of the upper template 4, a rubber-coated injection molding component 6 is installed on the inner side of the lower template 1, an injection molding filter component 7 is arranged above the upper template 4, and a rubber-coated molding component 8 is installed on the inner side of the upper template 4.

[0031] Specifically, the overmolded injection molding component 6 includes an injection cavity 601, a splicing groove 602, a splicing strip 603, a positioning ring 604, an injection molding tube 605, a bottom plate 606 and a diversion hole 607. An injection cavity 601 is opened on the inner side of the lower template 1, a splicing groove 602 is opened on the surface of the lower template 1, and a splicing strip 603 is provided at the bottom end of the upper template 4. The upper template 4 is docked by the cooperation of the positioning column 3 and the positioning hole 5, and the splicing is performed between the splicing strip 603 and the splicing groove 602, thereby ensuring the stability of the docking between the upper template 4 and the lower template 1.

[0032] Specifically, a positioning ring 604 is provided at the top of the upper template 4, an injection tube 605 is installed on the inner side of the positioning ring 604, a bottom plate 606 is welded to the bottom end of the injection tube 605, a diverter hole 607 is opened on the outer side of the bottom plate 606, and the inner side of the bottom plate 606 is a conical structure. The conical structure on the bottom plate 606 can ensure that the injection material is evenly distributed in the injection cavity 601 during the injection molding process, thereby improving the uniformity of injection molding and the molding quality of the product. In addition, the setting of the diverter hole 607 can further optimize the flow path of the injection material, reduce bubbles and defects in the injection molding process, and further improve the quality of the product.

[0033] Specifically, the injection molding filter assembly 7 includes a connecting ring bucket 701, a mounting ring 702, a filter inner ring 703 and a filter net 704. The top of the positioning ring 604 is connected to the connecting ring bucket 701, the inner side of the connecting ring bucket 701 is provided with a mounting ring 702, the inner side of the mounting ring 702 is connected to the filter inner ring 703, and the inner side of the filter inner ring 703 is installed with a filter net 704. During the injection molding process, the injection molding material is filtered by the filter net 704 to avoid the presence of unmelted material inside the injection molding material, thereby ensuring the uniformity of the injection material and the effect of the overmolding.

[0034] Specifically, the connecting ring 701 and the positioning ring 604 are threadedly connected, and the filter inner ring 703 and the mounting ring 702 are slotted. The threaded connection design between the connecting ring 701 and the positioning ring 604 not only ensures the stable installation of the connecting ring 701 and the filter inner ring 703, but also facilitates subsequent disassembly and maintenance, and facilitates the installation of the connecting ring 701 according to specific circumstances, thereby improving the flexibility of use.

[0035] Specifically, the overmolding component 8 includes a mounting groove 801, a pressure plate 802, a guide rod 803, a pressure block 804, a guide groove 805, an exhaust hole 806, an outlet groove 807 and a sealing ring 808. A mounting groove 801 is opened on the inner side of the upper template 4, and a pressure plate 802 is installed on the inner side of the mounting groove 801. The four sides of the pressure plate 802 are in contact with the inner wall of the mounting groove 801. Guide rods 803 are welded at the four corners of the pressure plate 802. The guide rods 803 penetrate the surface of the upper template 4, and the pressure plate 802 is connected to the upper template 4 through the guide rods 803, thereby ensuring the stability and accuracy of the pressure plate 802 during the injection molding process. At the same time, the close fit between the pressure plate 802 and the mounting groove 801 can prevent the injection molding material from entering the mounting groove 801, thereby ensuring the integrity of the injection molding overmolding.

[0036] Specifically, a pressing block 804 is provided at the bottom end of the pressing plate 802, and the pressing block 804 corresponds to the shape of the injection cavity 601. After injection molding, the pressing plate 802 is driven down by the guide rod 803, so that the pressing block 804 can press the injection material in the injection cavity 601 to a certain extent, avoiding the existence of steam bags and cavities in the material, thereby ensuring the effect of encapsulation molding of the embedded parts.

[0037] Specifically, a guide groove 805 is provided on the side surface of the pressing block 804, and exhaust holes 806 are provided on the left and right sides of the inner wall of the injection cavity 601. During the pressing process of the injection material, the guide groove 805 and the exhaust holes 806 can be effectively removed from the gas and excess material in the injection process to ensure the quality and appearance of the product.

[0038] Specifically, an inner front end of the injection cavity 601 is provided with a lead-out groove 807, and a sealing retaining ring 808 is movably connected to the inner side of the lead-out groove 807. The terminal embedded component that does not need to be encapsulated with rubber is passed through the lead-out groove 807 to facilitate product removal and subsequent processing. At the same time, the lead-out groove 807 is sealed by the sealing retaining ring 808 to ensure the sealing of the mold during the injection molding process, avoid leakage and waste of injection molding materials, and prevent excessive encapsulation of the terminal embedded component, thereby ensuring the quality of the product.

[0039] Working principle: First, place the terminal insert in the injection molding cavity 601, and make the part that needs to be encapsulated within the range of the injection molding cavity 601, while the part that does not need to be encapsulated passes through the lead-out groove 807; then, inject the molding material into the injection molding cavity 601 through the injection molding tube 605, and the molding material is guided by the conical structure on the bottom plate 606 and the diversion hole 607 to be evenly distributed in the injection molding cavity 601; at the same time, the molding material is filtered by the injection molding filter assembly 7 to remove impurities and incompletely melted materials therein, thereby ensuring the purity and uniformity of the molding material.

[0040] After the injection molding material is poured into the injection molding cavity 601, the guide rod 803 is controlled by an external device to drive the pressure plate 802 to press down, so that the pressure block 804 presses the injection molding material to avoid the existence of steam bags and cavities in the material, thereby ensuring the effect of injection molding and encapsulation. At the same time, the gas and excess material in the injection molding process are discharged through the guide groove 805 and the exhaust hole 806 to ensure the quality and appearance of the product. During the pressing process, the sealing ring 808 can ensure the sealing of the mold during the injection molding process, avoid leakage and waste of injection molding materials, and prevent excessive encapsulation of the terminal inserts to ensure the quality of the product.

[0041] When the injection molding is completed, the guide rod 803 drives the pressing plate 802 to rise, so that the pressing block 804 is separated from the injection molding cavity 601. At this time, the terminal insert has completed the overmolding; finally, the mold is opened to take out the product, and subsequent processing and treatment are carried out.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic overmolding mold for an automotive connector terminal insert, comprising a lower mold plate (1), characterized in that: A fixing seat (2) is installed at the bottom end of the lower template (1), positioning columns (3) are installed at the four corners of the lower template (1), an upper template (4) is arranged above the lower template (1), and positioning holes (5) are opened at the four corners of the upper template (4), a rubber-coated injection molding component (6) is installed on the inner side of the lower template (1), an injection molding filter component (7) is arranged above the upper template (4), and a rubber-coated molding component (8) is installed on the inner side of the upper template (4).

2. The automotive connector terminal insert overmolding mold according to claim 1, characterized in that: The overmolded injection molding component (6) comprises an injection molding cavity (601), a splicing groove (602), a splicing clip (603), a positioning ring (604), an injection molding tube (605), a bottom plate (606) and a diversion hole (607); the injection molding cavity (601) is formed on the inner side of the lower mold plate (1); the splicing groove (602) is formed on the surface of the lower mold plate (1); and the splicing clip (603) is provided at the bottom end of the upper mold plate (4).

3. The overmolding mold for an automotive connector terminal insert according to claim 1, characterized in that: A positioning ring (604) is provided at the top of the upper template (4), an injection tube (605) is installed on the inner side of the positioning ring (604), a bottom plate (606) is welded to the bottom end of the injection tube (605), a diversion hole (607) is opened on the outer side of the bottom plate (606), and the inner side of the bottom plate (606) is a conical structure.

4. The automotive connector terminal insert overmolding mold according to claim 3, characterized in that: The injection molded filter assembly (7) comprises a connecting ring bucket (701), a mounting ring (702), a filter inner ring (703) and a filter net (704); the top end of the positioning ring (604) is connected to the connecting ring bucket (701); the inner side of the connecting ring bucket (701) is provided with a mounting ring (702); the inner side of the mounting ring (702) is connected to the filter inner ring (703); and the filter net (704) is installed inside the filter inner ring (703).

5. The overmolding mold for an automotive connector terminal insert according to claim 4, characterized in that: The connecting ring bucket (701) and the positioning ring (604) are connected by threads, and the filtering inner ring (703) and the mounting ring (702) are connected by slots.

6. The overmolding mold for an automotive connector terminal insert according to claim 1, characterized in that: The rubber-coated molding component (8) comprises a mounting groove (801), a pressure plate (802), a guide rod (803), a pressure block (804), a guide groove (805), an exhaust hole (806), an outlet groove (807) and a sealing ring (808); the inner side of the upper template (4) is provided with a mounting groove (801); the inner side of the mounting groove (801) is provided with a pressure plate (802); the four sides of the pressure plate (802) are in contact with the inner wall of the mounting groove (801); the four corners of the pressure plate (802) are welded with guide rods (803); the guide rods (803) extend through the surface of the upper template (4).

7. The overmolding mold for an automotive connector terminal insert according to claim 6, characterized in that: A pressing block (804) is provided at the bottom end of the pressing plate (802), and the pressing block (804) corresponds to the shape of the injection molding cavity (601).

8. The overmolding mold for an automotive connector terminal insert according to claim 7, characterized in that: A guide groove (805) is provided on the side surface of the pressing block (804), and exhaust holes (806) are provided on the left and right sides of the inner wall of the injection cavity (601).

9. The overmolding mold for an automotive connector terminal insert according to claim 2, characterized in that: The front end of the inner side of the injection cavity (601) is provided with a lead-out groove (807), and the inner side of the lead-out groove (807) is movably connected with a sealing retaining ring (808).

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