CN210415253U

CN210415253U - Cable joint injection mold

Info

Publication number: CN210415253U
Application number: CN201921380966.7U
Authority: CN
Inventors: 刘燕; 文厚陆
Original assignee: Heyuan Putian Communication Technology Co ltd
Current assignee: Heyuan Putian Communication Technology Co ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-04-28
Anticipated expiration: 2029-08-23

Abstract

The utility model provides a cable joint injection mold, which comprises a bottom plate, a top plate, an upper mold which can be arranged between the bottom plate and the top plate in a vertically movable manner, an upper driving mechanism which is used for driving the upper mold to vertically move, a lower mold which is arranged below the upper mold in a vertically movable manner, and a lower driving mechanism which is used for driving the lower mold to vertically move; an injection molding cavity is arranged between the upper die and the lower die, one end of the injection molding cavity is provided with an accommodating cavity for accommodating the terminal head, and the other end of the injection molding cavity is provided with a wire passing hole for a cable to pass through; the upper die is provided with an injection molding hole communicated with the injection molding cavity; the upper die is inserted with an upper ejector rod in a sliding way, the lower end of the upper ejector rod extends to the injection molding cavity and is flush with the top of the injection molding cavity, and the upper end of the upper ejector rod extends out of the upper part of the upper die; the lower die is inserted with a lower ejector rod in a sliding way, the upper end of the lower ejector rod extends to the injection molding cavity and is flush with the bottom of the injection molding cavity, and the lower end of the lower ejector rod extends to the lower part of the lower die. This injection mold has solved the problem that is difficult to take out the cable joint when current injection mold die sinking.

Description

Cable joint injection mold

Technical Field

The utility model relates to a cable joint production technical field especially relates to a cable joint injection mold.

Background

Cable connectors (or plugs) generally consist of a terminal block and an insulating body, wherein the insulating body is generally manufactured by injection molding. An injection mold is used during injection molding, and a common injection mold comprises an upper mold 1 ' and a lower mold 2 ', an injection molding cavity 3 ' is arranged between the upper mold and the lower mold, one end of the injection molding cavity is provided with a containing cavity 5 ' for containing a terminal head 4 ', and the other end of the injection molding cavity is provided with a wire passing hole 7 ' for a cable 6 ' to pass through; the upper die is provided with an injection molding hole 8 'communicated with the injection molding cavity 3'. During injection molding, the terminal head 4 'connected with the cable 6' is placed in the accommodating cavity 5 ', the cable 6' penetrates through the wire passing hole 7 ', then molten material is injected from the injection molding hole 8', and the mold is opened after cooling and shaping to take out the cable connector.

When the injection mold is opened, the cable joint can be adhered to the upper mold 1 'or the lower mold 2' and is difficult to take out, and the production efficiency is influenced.

It is seen that the prior art is susceptible to improvements and enhancements.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art, an object of the utility model is to provide a cable joint injection mold, the problem that is difficult to take out cable joint when aiming at solving current injection mold die sinking.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a cable joint injection mold comprises a bottom plate, a top plate, an upper mold, an upper driving mechanism, a lower mold and a lower driving mechanism, wherein the upper mold is arranged between the bottom plate and the top plate in a vertically movable mode; an injection molding cavity is arranged between the upper die and the lower die, one end of the injection molding cavity is provided with an accommodating cavity for accommodating the terminal head, and the other end of the injection molding cavity is provided with a wire passing hole for a cable to pass through; the upper die is provided with an injection molding hole communicated with the injection molding cavity; the upper die is inserted with an upper ejector rod in a sliding way, the lower end of the upper ejector rod extends to the injection molding cavity and is flush with the top of the injection molding cavity, and the upper end of the upper ejector rod extends out of the upper part of the upper die; the lower die is inserted with a lower ejector rod in a sliding way, the upper end of the lower ejector rod extends to the injection molding cavity and is flush with the bottom of the injection molding cavity, and the lower end of the lower ejector rod extends to the lower part of the lower die.

In the cable joint injection mold, the lower part of the upper ejector rod is in a truncated cone shape with a large lower part and a small upper part; the upper part of the lower ejector rod is a truncated cone shape with a large upper part and a small lower part.

In the cable joint injection mold, the upper end of the upper ejector rod is provided with a bulge, and an upper compression spring is arranged between the bulge and the top of the upper mold; the lower end of the lower ejector rod is provided with a protruding part, and a lower compression spring is arranged between the protruding part and the bottom of the lower die.

In the cable joint injection mold, an upper buffer block is arranged at the position, opposite to the upper ejector rod, of the bottom of the top plate; and a lower buffer block is arranged at the position, which is just opposite to the lower ejector rod, of the top of the bottom plate.

In the cable joint injection mold, the upper driving mechanism comprises at least two first cylinders which are symmetrically arranged, the first cylinders are downwards fixed on the top plate, and piston rods of the first cylinders are fixedly connected with the upper mold; the lower driving mechanism comprises at least two symmetrically arranged second cylinders, the second cylinders are upwards fixed on the bottom plate, and piston rods of the second cylinders are fixedly connected with the lower die.

In the cable joint injection mold, two guide posts are symmetrically connected between the bottom plate and the top plate, and the upper mold and the lower mold are sleeved on the two guide posts in a sliding manner.

In the cable connector injection mold, a position avoiding hole is formed in the position, opposite to the injection molding hole, of the top plate.

Has the advantages that:

the utility model provides a pair of cable joint injection mold, during the die sinking, go up the mould and shift up under last actuating mechanism effect, simultaneously, the lower mould moves down under actuating mechanism effect down, after removing the certain distance, goes up the ejector pin and can offset and can't continue to follow and go up the mould and shift up with the roof, and lower ejector pin can offset and can't continue to follow the lower mould with the bottom plate and move down, and at this moment, no matter cable joint adhesion is in last mould or lower mould, all can be accomplished the drawing of patterns by one of them ejector pin jack-up. The problem of be difficult to take out cable joint when injection mold opens the mould among the prior art is solved.

Drawings

Fig. 1 is the utility model provides a cable joint injection mold's schematic structure diagram.

Fig. 2 is a schematic structural view of a conventional cable connector injection mold.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The following disclosure provides embodiments or examples for implementing different configurations of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1, the utility model provides a cable joint injection mold, including bottom plate 1, roof 2, can set up the upper die 3 between bottom plate and roof with reciprocating, be used for driving the upper drive mechanism that upper die 3 reciprocated, can set up the lower mould 4 below the upper die with reciprocating, and be used for driving the lower drive mechanism that lower mould 4 reciprocated; an injection molding cavity 5 is arranged between the upper die and the lower die, one end of the injection molding cavity is provided with an accommodating cavity 7 for accommodating a terminal head 6, and the other end of the injection molding cavity is provided with a wire passing hole 9 for a cable 8 to pass through; the upper die 3 is provided with an injection molding hole 10 communicated with the injection molding cavity 5; the upper die 3 is inserted with an upper ejector rod 11 in a sliding way, the lower end of the upper ejector rod extends to the injection molding cavity 5 and is flush with the top of the injection molding cavity, and the upper end of the upper ejector rod extends to the upper part of the upper die 3; the lower die 4 is inserted with a lower mandril 12 in a sliding way, the upper end of the lower mandril extends to the injection molding cavity 5 and is flush with the bottom of the injection molding cavity, and the lower end of the lower mandril extends out of the lower part of the lower die 4.

When the mold is opened after injection molding, the upper mold 3 moves up under the action of the upper driving mechanism, meanwhile, the lower mold 4 moves down under the action of the lower driving mechanism, after a certain distance is moved, the upper ejector rod 11 can abut against the top plate 2 and cannot continue to move up along with the upper mold 3, the lower ejector rod 12 can abut against the bottom plate 1 and cannot continue to move down along with the lower mold 4, and at the moment, no matter a cable joint is adhered to the upper mold or the lower mold, the cable joint can be jacked up by one of the ejector rods (the upper ejector rod 11 or the lower ejector rod 12) to complete demolding. The problem of be difficult to take out cable joint when injection mold opens the mould among the prior art is solved.

Further, the lower part of the upper ejector rod 11 is a truncated cone shape with a large lower part and a small upper part; the upper part of the lower mandril 12 is a truncated cone shape with a big upper part and a small lower part. The truncated cone-shaped end part can prevent the ejector rod from separating from the upper die or the lower die on one hand, and can ensure that the ejector rod is in close contact with the corresponding sliding hole on the other hand, so that the injection molding material is prevented from overflowing from the sliding hole.

Preferably, the upper end of the upper ejector rod 11 is provided with a convex part, and an upper compression spring 13 is arranged between the convex part and the top of the upper die 3; the lower end of the lower mandril 12 is provided with a convex part, and a lower compression spring 14 is arranged between the convex part and the bottom of the lower die 4. The upper compression spring 13 and the lower compression spring 14 can ensure that the upper ejector rod 11 and the lower ejector rod 12 do not extend into the injection molding cavity 5 after mold closing, so that the influence on normal injection molding is avoided.

In some embodiments, an upper buffer block 15 is arranged at the position, opposite to the upper mandril 11, of the bottom of the top plate 2; a lower buffer block 16 is arranged at the position, which is opposite to the lower mandril 12, on the top of the bottom plate 1. Impact force can be avoided from damaging equipment and cable joints. The upper and

lower bumpers

15 and 16 may be, but are not limited to, rubber, sponge, etc.

In some embodiments, the upper driving mechanism comprises at least two first cylinders 17 symmetrically arranged, the first cylinders are fixed on the top plate 2 downwards, and piston rods of the first cylinders are fixedly connected with the upper die 3; the lower driving mechanism comprises at least two second cylinders 18 which are symmetrically arranged, the second cylinders are upwards fixed on the bottom plate 1, and piston rods of the second cylinders are fixedly connected with the lower die 4. The first cylinder 17 and the second cylinder 18 may be replaced with a hydraulic cylinder, an electric telescopic rod, or the like.

Furthermore, two guide posts 19 are symmetrically connected between the bottom plate 1 and the top plate 2, and the upper die 3 and the lower die 4 are slidably sleeved on the two guide posts 19. The guide function of the guide post 19 can ensure that the upper die 3 and the lower die 4 are accurately matched, and the upper half cavity and the lower half cavity of the injection molding cavity 5 are accurately aligned.

In order to facilitate the injection of the injection molding material, the top plate 2 is provided with a position avoiding hole 20 at a position opposite to the injection molding hole 10.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-mentioned preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and the embodiments are substantially the same as the present invention.

Claims

1. The cable joint injection mold is characterized by comprising a bottom plate, a top plate, an upper mold, an upper driving mechanism, a lower mold and a lower driving mechanism, wherein the upper mold is arranged between the bottom plate and the top plate in a vertically movable mode; an injection molding cavity is arranged between the upper die and the lower die, one end of the injection molding cavity is provided with an accommodating cavity for accommodating the terminal head, and the other end of the injection molding cavity is provided with a wire passing hole for a cable to pass through; the upper die is provided with an injection molding hole communicated with the injection molding cavity; the upper die is inserted with an upper ejector rod in a sliding way, the lower end of the upper ejector rod extends to the injection molding cavity and is flush with the top of the injection molding cavity, and the upper end of the upper ejector rod extends out of the upper part of the upper die; the lower die is inserted with a lower ejector rod in a sliding way, the upper end of the lower ejector rod extends to the injection molding cavity and is flush with the bottom of the injection molding cavity, and the lower end of the lower ejector rod extends to the lower part of the lower die.

2. The cable connector injection mold according to claim 1, wherein the lower portion of the upper ejector rod is a truncated cone shape with a large lower portion and a small upper portion; the upper part of the lower ejector rod is a truncated cone shape with a large upper part and a small lower part.

3. The cable joint injection mold according to claim 2, wherein the upper end of the upper ejector rod is provided with a boss, and an upper compression spring is arranged between the boss and the top of the upper mold; the lower end of the lower ejector rod is provided with a protruding part, and a lower compression spring is arranged between the protruding part and the bottom of the lower die.

4. The cable joint injection mold of claim 3, wherein an upper buffer block is arranged at a position of the bottom of the top plate opposite to the upper ejector rod; and a lower buffer block is arranged at the position, which is just opposite to the lower ejector rod, of the top of the bottom plate.

5. The cable joint injection mold according to claim 1, wherein the upper driving mechanism comprises at least two first cylinders which are symmetrically arranged, the first cylinders are downwards fixed on the top plate, and piston rods of the first cylinders are fixedly connected with the upper mold; the lower driving mechanism comprises at least two symmetrically arranged second cylinders, the second cylinders are upwards fixed on the bottom plate, and piston rods of the second cylinders are fixedly connected with the lower die.

6. The cable joint injection mold according to claim 5, wherein two guide posts are symmetrically connected between the bottom plate and the top plate, and the upper mold and the lower mold are slidably sleeved on the two guide posts.

7. The cable joint injection mold of claim 1, wherein a position-avoiding hole is formed in the top plate at a position opposite to the injection hole.