CN-121989410-A - Injection molding positioning mechanism and injection mold of flexible inserts

Abstract

The invention relates to the field of injection molds, in particular to an injection molding positioning mechanism and an injection mold for a flexible insert, which comprise an upper template and a positioning plate, wherein the positioning plate is provided with a placing groove and a supporting inclined plane, a wiring groove is arranged on the supporting inclined plane, a clamping station is arranged in the placing groove, the positioning plate is provided with a wire pressing block and a limiting assembly, one end of the wire pressing block is rotationally connected to the positioning plate, the limiting assembly is propped against the other end of the wire pressing block, the wire pressing block is provided with a wire pressing inclined plane and a molding surface, the positioning plate is provided with a rotary pressing assembly, the whole flexible insert is arranged between the upper template and the positioning plate in a U shape, the placing groove bears the whole flexible insert, the flexible wire is pressed in the wiring groove by the supporting inclined plane and the wire pressing inclined plane, the clamping station in the placing groove clamps the end part of a copper wire, and the rotary pressing assembly performs pressing limiting on a resistor, so that the stability of the flexible insert is ensured to the maximum extent, and the position deviation of the flexible insert is avoided.

Inventors

• CHEN YANGQING
• CHEN YANGJIN

Assignees

• 厦门齐强胜智能科技有限公司

Dates

Publication Date

20260508

Application Date

20260409

Claims (10)

1. 1. The injection molding positioning mechanism of the flexible insert comprises a copper wire, two ends of the copper wire are provided with bending parts which are bent relatively, the end parts of the bending parts are connected with flexible wires, resistors are arranged between the bending parts of the copper wire, the injection molding positioning mechanism is characterized by comprising an upper template and a positioning plate, the positioning plate is provided with a placing groove and a supporting inclined plane, a wiring groove is formed in the supporting inclined plane, one end of the wiring groove is communicated with the placing groove, a clamping station is arranged in the placing groove, the resistor and the copper wire are arranged on the clamping station, and the flexible wire is embedded in the wiring groove; The positioning plate is provided with a wire pressing block and a limiting assembly, one end of the wire pressing block is rotationally connected to the positioning plate, and the limiting assembly is arranged at the other end of the wire pressing block and is propped against the other end of the wire pressing block; The positioning plate is provided with a rotary pressing assembly, the rotary pressing assembly comprises a pressing rod and an adsorption piece, the rear end of the pressing rod is rotatably arranged on the positioning plate, the adsorption piece is arranged on the positioning plate and is positioned at the side part of the front end of the pressing rod, the front end of the pressing rod is provided with a pressing surface, the pressing surface is correspondingly arranged with a resistor, and the adsorption piece adsorbs the pressing surface of the pressing rod to rotate towards the resistor for pressing; the upper die plate is provided with a forming groove, and the forming surfaces of the forming groove, the placing groove and the line pressing block are enclosed to form an injection molding cavity.
2. 2. The flexible insert injection molding positioning mechanism according to claim 1, wherein one end of the pressing line block is provided with a rotating block extending outwards, the positioning plate is provided with a rotating groove, the rotating block is embedded in the rotating groove, a first positioning pin is arranged in the rotating groove, and the first positioning pin is inserted on the rotating block; The other end of the line ball piece is equipped with outwards bellied fixture block, spacing subassembly includes buckle and block drive unit, the lateral part of buckle is equipped with outwards extending block arch, block drive unit drive block arch is kept away from the one side of standing groove with the fixture block and is supported each other.
3. 3. The injection molding positioning mechanism of the flexible insert according to claim 2, wherein the positioning plate is provided with a clamping groove, the clamping buckle is embedded in the clamping groove, the clamping driving unit comprises a second positioning pin and an elastic piece, the elastic piece is arranged in the clamping groove and positioned at the other side of the clamping protrusion, and the elastic piece applies a pushing force towards the direction of the line pressing block to the clamping buckle; The second locating pin is arranged in the clamping groove and is inserted into one end of the buckle.
4. 4. The injection molding positioning mechanism of the flexible insert according to claim 3, wherein the other end of the buckle protrudes out of the clamping groove, a yielding inclined plane is arranged on the clamping protrusion, and the yielding inclined plane is obliquely arranged from the other end of the buckle towards one side of the pressing line block.
5. 5. The injection molding positioning mechanism of the flexible insert according to claim 1, wherein the groove bottom of the wiring groove is an arc curved surface, the arc curved surface is concentric with the flexible wire, and the depth of the wiring groove is larger than the radius of the flexible wire.
6. 6. The injection molding positioning mechanism of the flexible insert according to claim 1, wherein the clamping station is provided with a placement notch, the resistor is embedded in the placement notch, and two ends of the resistor are mutually abutted against and attached to two side walls of the placement notch; the two side walls of the placement notch are provided with wiring notches, and copper wires at two ends of the resistor are embedded in the wiring notches.
7. 7. The flexible insert injection molding positioning mechanism according to claim 6, wherein the two ends of the top opening of the wiring notch are curved surfaces for giving way.
8. 8. The injection molding positioning mechanism of the flexible insert according to claim 1, wherein the positioning plate is provided with a turnover groove, one end of the turnover groove is provided with a pressing notch, and the turnover groove, the pressing notch and the placing groove are communicated with each other; The turnover groove is internally provided with a third positioning pin which is inserted into the pressing rod, the adsorption piece is arranged at the bottom of the turnover groove, the front end of the pressing rod is provided with an outwards-protruding pressing part, the pressing part corresponds to the pressing notch, and the end part of the pressing part is mutually propped against or separated from the resistor; the other end of the turnover groove is provided with a turnover notch, and the turnover notch is positioned below the third positioning pin.
9. 9. The flexible insert molding positioning mechanism according to claim 8, wherein the pressing portion is provided with a pressing cushion layer on the ground.
10. 10. An injection mold, characterized by comprising an upper mold set, a lower mold set and the injection positioning mechanism of the flexible insert according to any one of claims 1-9, wherein the upper mold plate is arranged at the bottom of the upper mold set, the positioning plate is arranged at the top of the lower mold set, a yielding gap is formed in the lower mold set, and the yielding gap is communicated with the end part of the wiring groove.

Description

Injection molding positioning mechanism and injection mold of flexible inserts Technical Field The invention relates to the field of injection molds, in particular to an injection positioning mechanism of a flexible insert and an injection mold. Background The injection mold is a core tool for batch molding of plastic products in modern industry, and the molten plastic is injected into a precisely designed cavity through high temperature and high pressure, and a finished product which is completely consistent with the shape of the mold cavity is obtained after cooling and solidification. The technology is widely applied to various fields from daily necessities to automobile parts, and the core of the technology is that the design and manufacturing precision of a die directly determine the dimensional stability, the surface quality and the production efficiency of a product. The mould usually comprises a movable mould and a fixed mould, the movable mould is arranged on a movable mould plate of the injection machine, the fixed mould is fixed on a fixed mould plate of the injection machine, a closed cavity space is formed during mould closing, and a finished product is ejected out through an ejection system during mould opening. The inside key structures such as including gating system, shaping part, guiding mechanism, ejecting device, temperature regulating system of mould, wherein gating system is responsible for evenly leading-in die cavity with the melt, and the core of shaping part forms the product profile with the die cavity cooperation, and guiding mechanism ensures that moving cover half is accurate aligns when the compound die, and temperature regulating system passes through cooling water route or heating element control mould temperature, directly influences mobility and the shrinkage ratio of plastics. In a practical industrial production scenario, when a composite molding process is performed by embedding a flexible insert into an injection mold, uncontrollable deformation is very easy to occur under the impact of high-temperature molten plastic, extrusion with closed mold and complex fluid dynamics in the injection molding process due to the material characteristics of the flexible insert. Such deformation may manifest as local collapse, distortion shifting or dimensional shrinkage, resulting in an insert-to-mold cavity fit clearance outside of the design tolerances, and dynamic displacement of the flexible insert during injection pressure transfer, resulting in lower product yields. Disclosure of Invention The invention aims to provide an injection positioning mechanism of a flexible insert and an injection mold, and aims to solve the problem that the qualification rate of a molded product is low after the flexible insert is added in a conventional injection mold. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a positioning mechanism moulds plastics of flexible inserts, flexible inserts includes the copper line, the both ends of copper line are equipped with the bending portion of relative bending, the end connection of bending portion has the patchcord, be provided with the resistance between the bending portion of copper line, including cope match-plate pattern and locating plate, standing groove and supporting inclined plane have been seted up on the locating plate, the last wire casing of supporting inclined plane, the one end and the standing groove of wire casing are linked together, be provided with the block station in the standing groove, resistance and copper line set up on the block station, the patchcord inlays to be established in the wire casing; The positioning plate is provided with a wire pressing block and a limiting assembly, one end of the wire pressing block is rotationally connected to the positioning plate, and the limiting assembly is arranged at the other end of the wire pressing block and is propped against the other end of the wire pressing block; The positioning plate is provided with a rotary pressing assembly, the rotary pressing assembly comprises a pressing rod and an adsorption piece, the rear end of the pressing rod is rotatably arranged on the positioning plate, the adsorption piece is arranged on the positioning plate and is positioned at the side part of the front end of the pressing rod, the front end of the pressing rod is provided with a pressing surface, the pressing surface is correspondingly arranged with a resistor, and the adsorption piece adsorbs the pressing surface of the pressing rod to rotate towards the resistor for pressing; the upper die plate is provided with a forming groove, and the forming surfaces of the forming groove, the placing groove and the line pressing block are enclosed to form an injection molding cavity. Further, one end of the line pressing block is provided with a rotating block extending outwards, the positioning plate is provided with a rotatin