CN220923017U - Forming mechanism of connector rubber core die - Google Patents

Abstract

The utility model discloses a molding mechanism of a connector rubber core mold, wherein a first positioning block is arranged on a fixed mold core, a hot nozzle is arranged on the first positioning block, a plurality of first inserts are arranged on two sides of the first positioning block, a submerged channel is arranged in a first insert on each side, a second positioning block is arranged on a movable mold core, a plurality of second inserts are arranged on two sides of the second positioning block, side pushing assemblies are arranged on two sides of the movable mold core, and a third insert is arranged on each side pushing assembly. The utility model adopts a one-die two-cavity structure, shortens the length of the water gap of the glue piece to the greatest extent while meeting the molding requirement of the glue piece, reduces the loss of raw materials, has lower allocation cost of the water gap of the plastic piece, and can utilize the hot nozzle of the hot runner mold to adjust the glue feeding temperature of glue in good time so as to fill the glue in the cavity with a complex structure rapidly and improve the molding efficiency.

Description

Forming mechanism of connector rubber core die

Technical Field

The utility model relates to the technical field of plastic molds, in particular to a molding mechanism of a connector rubber core mold.

Background

The rubber core is an important functional piece on the connector and is used for positioning and insulating the terminal. In production, the thickness of the rubber core of some structures is uneven in distribution, the difference of length, width and height is large, the internal structure is complex, in order to ensure the quality of the molded rubber core, a plurality of rubber inlets are often required to be designed on a plastic mold so as to synchronously feed rubber at multiple points, the molding structure can well ensure the molding quality of the rubber core, but the structural design of the multi-water inlet not only ensures that the demolding structure is complex, but also wastes more rubber, the performance of the water gap rubber can be reduced after recycling, and the water gap rubber cannot be used for molding production of high-quality plastic parts, so that the raw material loss is serious, and the production cost is high.

Disclosure of utility model

Aiming at the problems in the prior art, the utility model provides a molding mechanism of a connector rubber core mold, which adopts a one-mold two-cavity structure, can shorten the length of a water gap of a rubber part to the greatest extent while meeting the molding requirement of the rubber part, reduces the loss of raw materials, has lower allocation cost of the water gap of the plastic part, and can utilize a hot runner mold hot nozzle to adjust the glue feeding temperature of glue in good time so as to fill the glue in a cavity with a complex structure rapidly and improve the molding efficiency.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The molding mechanism of the connector rubber core mold comprises a movable mold and a fixed mold, wherein a mold core is arranged on the fixed mold, the movable mold core is arranged on the movable mold, a first cavity is formed at the end part of the mold core, and a second cavity matched with the first cavity is formed at the end part of the movable mold core; wherein,

The fixed die core is provided with a first positioning block, a plurality of first cavities are formed on two sides of the first positioning block, and each first cavity is formed by combining a plurality of first inserts; the first positioning block is provided with a hot nozzle and a first main runner communicated with the hot nozzle, two end parts of the first main runner are communicated with a submerged runner, each submerged runner is arranged in one first insert, and one end part of each submerged runner is communicated with one first cavity;

A second positioning block is arranged on the movable mold core, a plurality of second cavities are formed on two sides of the second positioning block, and each second cavity is formed by combining a plurality of second inserts; a second main runner is arranged on the second positioning block, and two end parts of the second main runner are communicated with a second cavity; when the mold is closed, the second positioning block is matched with the first positioning block, and the second main runner is matched with the first main runner;

And two opposite sides of the movable mold core are respectively provided with a side pushing assembly, the end part of each side pushing assembly, which is close to the movable mold core, is respectively provided with a third insert, and each third insert can pass through the fixed mold core and/or the movable mold core and extend into one of the first cavity and/or the second cavity under the pushing of the side pushing assemblies.

As a further explanation of the above technical solution:

In the above technical scheme, each of the down-the-hole channels is obliquely arranged in one of the first inserts, and two open ends of each down-the-hole channel are respectively arranged on two adjacent side walls of one of the first inserts.

In the above technical scheme, a first sub-runner is further arranged between each first main runner and the down-the-air runner, and each first sub-runner is arranged at the end part of one first insert.

In the above technical solution, the end portion of each second main runner is further communicated with a second sub runner, and each second sub runner is disposed at the end portion of one second insert and one end portion of each second sub runner is communicated with one second cavity; when the mold is closed, each second shunt channel is matched with one first shunt channel.

In the above technical scheme, the movable mold is provided with a plurality of ejector rods extending along the mold closing direction, the second positioning block and the plurality of second inserts are respectively provided with more than one hole groove which is in one-to-one fit with the ejector rods, and each hole groove is communicated with the second main runner/the second sub runner/the second cavity; each ejector rod can slide along the die assembly direction under the pushing of external force so as to push the plastic part and the water gap away from the movable die.

In the above technical scheme, each side pushing assembly comprises a sliding seat and a push rod, the sliding seat is slidably arranged at the die clamping end part of the movable die, the push rod is obliquely arranged on the sliding seat, and one end part of the push rod extends to the outer side of the movable die.

Compared with the prior art, the utility model has the beneficial effects that: the end part of the main runner is provided with the submerged runner and is arranged in the first insert, so that glue solution can be injected into the cavity from two points, the length of a water gap of the glue piece is shortened to the greatest extent while the molding requirement of the glue piece is met, and the loss of raw materials is reduced; the first positioning block and the second positioning block are arranged in the middle of the die core, and the two sides of the first positioning block and the second positioning block are provided with the die cavities, so that a one-die two-cavity structure is realized, the allocation cost of each plastic part to the water gap of the main runner is reduced, and the production cost of the plastic parts is reduced; through setting up the heat and chew, the advantage that the hot runner mould advances gluey, the glue solution advances gluey temperature of timely adjustment to annotate the glue solution in the cavity of complex structure fast, promote shaping efficiency.

Drawings

Fig. 1 is a schematic view of the structure in a clamped state of the present embodiment;

Fig. 2 is a schematic view of the structure (not shown) of the ejector pins at another view angle in the clamped state of the present embodiment;

Fig. 3 is a schematic view of the runner (the ejector pins, the first positioning block, and a part of the first insert are not shown) in the clamped state of the present embodiment;

fig. 4 is a schematic structural view of a first positioning block in the present embodiment;

Fig. 5 is a schematic structural view of a first insert in the present embodiment.

In the figure: 10. a fixed mould core; 11. a first positioning block; 12. a first insert; 13. a first main flow passage; 14. a down-the-water channel; 15. a first sub-flow path; 20. a movable mold core; 21. a second positioning block; 22. a second insert; 23. a second main flow passage; 25. a second shunt; 26. a hole groove; 30. a hot nozzle; 40. a side pushing assembly; 41. a slide; 42. a push rod; 50. a third insert; 60. and (5) a push rod.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be illustrative of the application and are not to be construed as limiting the application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a number", "a plurality" or "a plurality" is two or more, unless specifically defined otherwise. In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances. In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1-5, a molding mechanism of a connector rubber core mold comprises a movable mold and a fixed mold, wherein a mold core 10 is arranged on the fixed mold, a movable mold core 20 is arranged on the movable mold, a first cavity is formed at the end part of the mold core 10, and a second cavity matched with the first cavity is formed at the end part of the movable mold core 20; wherein,

The fixed die core 10 is provided with a first positioning block 11, a plurality of first cavities are formed on two sides of the first positioning block 11, and each first cavity is formed by combining a plurality of first inserts 12; the first positioning block 11 is provided with a heat nozzle 30 and a first main runner 13 communicated with the heat nozzle, two ends of the first main runner 13 are communicated with a submerged runner 14, each submerged runner 14 is arranged in a first insert 12, and one end of each submerged runner 14 is communicated with a first cavity;

The movable die core 20 is provided with a second positioning block 21, a plurality of second cavities are formed on two sides of the second positioning block 21, and each second cavity is formed by combining a plurality of second inserts 22; the second positioning block 21 is provided with a second main runner 23, and two end parts of the second main runner 23 are communicated with a second cavity; when the mold is closed, the second positioning block 21 is matched with the first positioning block 11, and the second main runner 23 is matched with the first main runner 13;

two opposite sides of the movable mold core 20 are respectively provided with a side pushing assembly 40, the end part of each side pushing assembly 40, which is close to the movable mold core 20, is respectively provided with a third insert 50, and each third insert 50 can penetrate through the fixed mold core 10 and/or the movable mold core 20 and extend into a first cavity and/or a second cavity under the pushing of the side pushing assembly 40.

When the mold is closed, the movable mold core 20 drives the second positioning block 21 and the second insert 22 to move towards the fixed mold core 10 and match with the first positioning block 11 and the first insert 12 on the movable mold core, the second main runner 23 is matched with the first main runner 13 to form a glue inlet main runner, two end parts of the glue inlet main runner are communicated with the second cavity and are respectively communicated with the first cavity through one submerged runner 14, and simultaneously, the side pushing assemblies 40 on two sides slide towards the movable mold core 20 on the movable mold under the pressing of the fixed mold and synchronously drive the third insert 50 on the side pushing assemblies to move towards the movable mold core into the cavity formed by surrounding the first insert 12 and the second insert 22; after the die assembly is completed, the hot nozzle 30 injects glue solution with proper temperature into the glue inlet main flow channel, part of the glue solution directly flows into the second cavities at two sides, and part of the glue solution enters the first cavities at two sides through the submerged flow channel 14; after the plastic part is molded, the movable mould leaves the fixed mould, two side pushing assemblies 40 respectively drive a third insert 50 to push out of the plastic part, a water gap in the submerged channel 14 is disconnected with the plastic part, and a thimble driving device on the movable mould drives a mandril 60 to move so as to push the plastic part and the movable mould away; finally, the water gap in the submerged channel 14 is pushed out by a manual or automatic mechanism.

According to the utility model, the submerged channel 14 is arranged at the end part of the main channel and is arranged in the first insert 12, so that glue solution can be injected into the cavity from two points, the length of a water gap of a glue piece is shortened to the greatest extent while the molding requirement of the glue piece is met, and the loss of raw materials is reduced; the first positioning block 11 and the second positioning block 21 are arranged in the middle of the die core, and the two sides of the first positioning block and the second positioning block are provided with the die cavities, so that a one-die two-cavity structure is realized, two plastic parts share one main runner, and the allocation cost of each plastic part to the water gap of the main runner is reduced, so that the production cost of the plastic parts is reduced; by arranging the hot nozzle 30, the glue feeding temperature of the glue solution can be timely adjusted by utilizing the advantage of glue feeding of the hot runner mold, so that the glue solution can be quickly filled in the cavity with the complex structure, and the molding efficiency is improved.

The composition of the mold, the staged opening of the mold by the limiting members (so that the side pushing assembly 40 is withdrawn from the mold before the complete opening of the mold), the ejector pin driving mechanism of the movable mold, and the application of the hot nozzle to hot runner molding are all known to those skilled in the art, and the specific structure thereof will not be described in detail herein.

Specifically, each of the down-the-hole channels 14 is disposed obliquely in a first insert 12, and two open ends thereof are disposed on two adjacent side walls of the first insert 12, respectively.

Specifically, a first sub-runner 15 is further arranged between each first main runner 13 and the down-the-hole runner 14, and each first sub-runner 15 is arranged at the end part of a first insert 12; the end part of each second main runner 23 is also communicated with a second sub runner 25, and each second sub runner 25 is arranged at the end part of a second insert 22 and one end part of each second sub runner is communicated with a second cavity; when the mold is closed, each second runner 25 is matched with one first runner 15.

It can be understood that the first sub-runner 15 and the down-the-air runner 14 cooperate to drain the glue solution to a proper position of the cavity and perform glue injection so as to ensure the molding quality of the glue piece.

Specifically, the movable mold is provided with a plurality of ejector rods 60 extending along the mold closing direction, the second positioning block 21 and the plurality of second inserts 22 are respectively provided with more than one hole groove 26 which is in one-to-one fit with the ejector rods 60, and each hole groove 26 is communicated with the second main runner 23/the second sub runner 25/the second cavity; each ejector rod 60 can slide along the die assembly direction under the pushing of external force so as to push the plastic part and the water gap away from the movable die.

Specifically, each side pushing assembly 40 includes a sliding seat 41 and a push rod 42, the sliding seat 41 is slidably disposed at the mold clamping end of the movable mold, the push rod 42 is obliquely disposed on the sliding seat 41, and one end portion thereof extends to the outside of the movable mold.

In operation, the push rod 42 firstly contacts the fixed die and is pressed by the push rod to slide relative to the movable die, so as to push the sliding seat 41 to move towards or away from the die core, so as to push the third insert 51 at the end part of the sliding seat to synchronously move,

The above description should not be taken as limiting the scope of the utility model, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.

Claims (6)

1. The molding mechanism of the connector rubber core mold comprises a movable mold and a fixed mold, wherein a mold core is arranged on the fixed mold, the movable mold core is arranged on the movable mold, a first cavity is formed at the end part of the mold core, and a second cavity matched with the first cavity is formed at the end part of the movable mold core; the method is characterized in that:

A first positioning block is arranged on the fixed die core, a plurality of first cavities are formed on two sides of the first positioning block, and each first cavity is formed by combining a plurality of first inserts; the first positioning block is provided with a hot nozzle and a first main runner communicated with the hot nozzle, two end parts of the first main runner are communicated with a submerged runner, each submerged runner is arranged in one first insert, and one end part of each submerged runner is communicated with one first cavity;

A second positioning block is arranged on the movable mold core, a plurality of second cavities are formed on two sides of the second positioning block, and each second cavity is formed by combining a plurality of second inserts; a second main runner is arranged on the second positioning block, and two end parts of the second main runner are communicated with a second cavity; when the mold is closed, the second positioning block is matched with the first positioning block, and the second main runner is matched with the first main runner;

And two opposite sides of the movable mold core are respectively provided with a side pushing assembly, the end part of each side pushing assembly, which is close to the movable mold core, is respectively provided with a third insert, and each third insert can pass through the fixed mold core and/or the movable mold core and extend into one of the first cavity and/or the second cavity under the pushing of the side pushing assemblies.

2. The molding mechanism of a connector core mold according to claim 1, wherein each of said submerged passages is disposed obliquely in one of said first inserts, and both open ends thereof are disposed on two adjacent side walls of one of said first inserts, respectively.

3. The molding mechanism of a connector rubber core mold according to claim 1, wherein a first sub-runner is further provided between each of the first main runners and the submerged runners, and each of the first sub-runners is provided at an end of one of the first inserts.

4. A molding mechanism for a connector core mold according to claim 3, wherein an end of each of said second main runners is further in communication with a second sub runner, each of said second sub runners being provided at an end of said second insert and having an end thereof in communication with said second cavity; when the mold is closed, each second shunt channel is matched with one first shunt channel.

5. The molding mechanism of a connector rubber core mold according to claim 4, wherein the movable mold is provided with a plurality of ejector rods extending along a mold closing direction, the second positioning block and the second inserts are respectively provided with more than one hole groove which is matched with the ejector rods one by one, and each hole groove is communicated with the second main runner/the second sub runner/the second cavity; each ejector rod can slide along the die assembly direction under the pushing of external force so as to push the plastic part and the water gap away from the movable die.

6. A connector rubber core mold molding mechanism according to any one of claims 1 to 5, wherein each of said side pushing assemblies comprises a slide and a push rod, said slide is slidably provided at a mold closing end portion of said movable mold, said push rod is mounted on said slide in an inclined manner, and one end portion thereof extends to an outside of said movable mold.