CN217891682U

CN217891682U - Injection mold with baffle plate and baffle plate being stable

Info

Publication number: CN217891682U
Application number: CN202221785724.8U
Authority: CN
Inventors: 孙海涛
Original assignee: Dongguan Gaoshengda Plastic Hardware Products Co ltd
Current assignee: Dongguan Gaoshengda Plastic Hardware Products Co ltd
Priority date: 2022-07-09
Filing date: 2022-07-09
Publication date: 2022-11-25
Anticipated expiration: 2032-07-09

Abstract

The utility model discloses a stable injection mold of baffle pipe baffle relates to precision mold technical field, the shaping has the cooling tunnel around the die cavity on mould benevolence, be provided with the baffle pipe on the side of mould benevolence, the baffle pipe includes the baffle and drills the cooling duct of this cooling tunnel perpendicularly on the side of mould benevolence, it is provided with the fixed slot to keep away from mould benevolence side open-ended one end indent on the cooling duct, be connected with the sealed lid that is used for shutoff cooling duct's mould benevolence side open-ended on the baffle, the one end of keeping away from sealed lid on the baffle is connected with the bolt through a connecting piece, bolt and fixed slot grafting cooperation, be formed with the coolant passageway that corresponds with the cooling duct between bolt and the baffle, through the improvement to the baffle pipe, when making the baffle arrange the cooling duct in, the both ends homoenergetic of baffle obtain the strong point nearby, high speed, when highly compressed coolant flows the baffle pipe, the difficult production skew of the position that is close to bolt department on the baffle, effectively guarantee and even cooling effect.

Description

Injection mold with baffle plate and baffle plate being stable

Technical Field

The utility model relates to an accurate mould technical field specifically is a stable injection mold of baffle pipe baffle.

Background

The injection molding process includes injecting molten plastic with relatively high temperature into mold with relatively low temperature through high pressure, cooling and solidifying to obtain the required product, and the molding period is one important step in molding, but the cooling system plays important role in injection mold in 50-60% time.

Areas of the mold that are remote from the cooling channels, where baffles are typically used to achieve uniform cooling, may not achieve the desired cooling effect. The structure is shown in fig. 1. The baffle pipe 3 is a cooling pipeline 32 vertically drilled through the critical cooling hole 2, and a baffle plate 31 is added in the cooling pipeline 32 to divide the cooling pipeline into two semicircular flow paths, and the coolant flows into one side of the baffle plate from the critical cooling hole, flows to the end and then flows back to the other side of the baffle plate, and finally flows back to the critical cooling hole. The barrier tube provides maximum coolant contact area, but high velocity, high pressure coolant can cause the barrier to be difficult to maintain in a central position as it flows through the barrier tube, and is subject to improvement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

In order to achieve the above purpose, the utility model provides a following technical scheme: an injection mold with stable baffle pipe and baffle plates is characterized in that a mold core is formed with a cooling duct surrounding a mold cavity, a baffle pipe is arranged on the side surface of the mold core, the baffle pipe comprises a baffle plate and a cooling pipeline vertically drilling the cooling duct from the side surface of the mold core, 2 communication ports are formed between the cooling duct and the cooling pipeline and respectively comprise a first communication port and a second communication port, the baffle plate is inserted into the cooling pipeline from the side surface of the mold core and divides the cooling pipeline into two mutually communicated semicircular flow paths, the first communication port and the second communication port are respectively communicated with the semicircular flow paths, a fixing groove is concavely arranged at one end of the cooling pipeline, which is far away from an opening on the side surface of the mold core, the aperture of the fixing groove is smaller than that of the cooling pipeline, and the axial section of the cooling pipeline and the fixing groove after combination is in a convex shape; be connected with the sealed lid that is used for shutoff cooling tube's mould benevolence side opening on the baffle, the one end of keeping away from sealed lid on the baffle is connected with the bolt through a connecting piece, and bolt and fixed slot grafting cooperation are formed with the coolant passageway that corresponds with cooling tube between bolt and the baffle.

As a further aspect of the utility model: the connecting pieces are 1 pair of connecting columns, and a coolant channel formed by the partition boards, the connecting pieces and the pins is a square pipeline or a rectangular pipeline.

As a further aspect of the present invention: the end face of the separator corresponding to the coolant passage is an inclined end face and is inclined from the semicircular flow path toward the semicircular flow path.

As a further aspect of the present invention: the sealing cover is provided with a sealing rubber ring.

As a further aspect of the present invention: the mold core is provided with 2 separated mold cavities, and the baffle pipe is positioned between the 2 mold cavities.

Compared with the prior art, the beneficial effects of the utility model are as follows: through the improvement to the barrier pipe for when the baffle was arranged in the cooling duct, the both ends homoenergetic of baffle obtained the strong point nearby, and when high-speed, highly compressed coolant flowed the barrier pipe, the position that is close to bolt department on the baffle was difficult for producing the skew, effectively guaranteed and even cooling effect.

Drawings

FIG. 1 is a schematic diagram of a prior art barrier tube;

FIG. 2 is a perspective view of the present invention;

fig. 3 is a structural sectional view of the present invention;

FIG. 4 is an enlarged view of a portion of the structure at A in FIG. 3;

the reference numerals and names in the figures are as follows:

a mold core-1, a mold cavity-11,

a cooling channel-2, a first communicating port-21, a second communicating port-22,

the device comprises a baffle pipe-3, a partition plate-31, an inclined end face-311, a cooling pipeline-32, a mold core side opening-321 of the cooling pipeline, a semicircular flow path-33, a fixing groove-34, a sealing cover-35, a connecting piece-36, a bolt-37, a coolant channel-38 and a sealing rubber ring-39.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an injection mold with a barrier tube and a stable partition plate is provided, in which a mold core 1 is formed with a cooling tunnel 2 surrounding a mold cavity 11, a side surface of the mold core 1 is provided with the barrier tube 3, the barrier tube 3 includes a partition plate 31 and a cooling duct 32 vertically drilling the cooling tunnel 2 from the side surface of the

mold core

1, 2 communication ports are formed between the cooling tunnel 2 and the cooling duct 32, and are respectively a first communication port 21 and a second communication port 22, the partition plate 31 is inserted into the cooling duct 32 from the side surface of the mold core 1 and divides the cooling duct 32 into two semi-circular flow paths 33 which are communicated with each other, and the first communication port 21 and the second communication port 22 are respectively communicated with the semi-circular flow paths. A fixing groove 34 is concavely arranged at one end of the cooling pipeline, which is far away from the opening on the side surface of the mold core, the aperture of the fixing groove 34 is smaller than that of the cooling pipeline 32, so that the axial section of the combined cooling pipeline 32 and the fixing groove 34 is in a convex shape; the partition plate 31 is connected with a sealing cover 35 for sealing the cavity side opening 321 of the cooling pipeline, preferably, the sealing cover 35 is provided with a sealing rubber ring 39, one end of the partition plate 31 far away from the sealing cover 35 is connected with a plug pin 37 through a connecting piece 36, the plug pin 37 is in inserted fit with the fixing groove 34, and a coolant channel 38 corresponding to the cooling pipeline 32 is formed between the plug pin 37 and the partition plate 31. After the bolt 37 is inserted into the fixing groove 34, the end of the partition plate 31 away from the sealing cover 35 is fixed by the connecting piece 36 and the bolt 37, so that the end of the partition plate 31 away from the sealing cover 35 is not easily stressed to generate deviation.

Through the improvement to the baffle pipe 3 for when the baffle 31 is arranged in the cooling pipeline 32, both ends of the baffle 31 can obtain the support point nearby, and when the high-speed and high-pressure coolant flows through the baffle pipe 3, the part of the baffle 31 close to the bolt 37 is not easy to deviate, thereby effectively ensuring and homogenizing the cooling effect.

Preferably, the connecting member 36 is 1 pair of connecting posts, the coolant channel 38 formed by the partition plate 31, the connecting member 36 and the plug 37 is a square pipe or a rectangular pipe, and the connection between the partition plate 31 and the plug 37 is more stable.

The end surface of the separator 31 corresponding to the coolant passage 38 is an inclined end surface 311, and is inclined from the semicircular flow path toward the other semicircular flow path. After the connecting piece 36 is set to be 1 pair of connecting columns, the opening on one side of the coolant channel is large and the opening on the other side is small due to the arrangement of the inclined end surface 311, and a jet flow is formed when the coolant flows, so that the influence of the increase on the coolant flow blockage caused by the setting of the connecting piece to be 1 pair of connecting columns is effectively solved.

The embodiment of the utility model provides an in, be equipped with 2 divided die cavitys 11 on mould benevolence 1, baffle pipe 3 is located between these 2 die cavitys, under the prerequisite of the cooling channel design degree of difficulty between simplifying the die cavity, makes the heat between 2 die cavitys can in time be taken away through this baffle pipe.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An injection mould with stable baffle plate tube and baffle plate is characterized in that a cooling duct surrounding a mould cavity is formed on a mould core, a baffle plate tube is arranged on the side surface of the mould core, the baffle plate tube comprises a baffle plate and a cooling pipeline vertically drilling the cooling duct from the side surface of the mould core, 2 communicating ports are formed between the cooling duct and the cooling pipeline and are respectively a first communicating port and a second communicating port, the baffle plate is inserted into the cooling pipeline from the side surface of the mould core and divides the cooling pipeline into two mutually communicated semicircular flow paths, and the first communicating port and the second communicating port are respectively communicated with the semicircular flow paths,

a fixing groove is concavely arranged at one end of the cooling pipeline, which is far away from the opening on the side surface of the mold core, and the aperture of the fixing groove is smaller than that of the cooling pipeline, so that the axial section of the combined cooling pipeline and the fixing groove is arranged in a convex shape;

be connected with the sealed lid that is used for shutoff cooling tube's mould benevolence side opening on the baffle, the one end of keeping away from sealed lid on the baffle is connected with the bolt through a connecting piece, and bolt and fixed slot grafting cooperation are formed with the coolant passageway that corresponds with cooling tube between bolt and the baffle.

2. The barrier tube spacer stabilization injection mold of claim 1, wherein the connector is 1 pair of connecting posts, and the coolant channel formed by the spacer, the connector and the pin is a square or rectangular channel.

3. The baffle tube spacer stabilization injection mold of claim 2, wherein the end surface of the spacer corresponding to the coolant channel is an inclined end surface and is inclined from the semicircular flow path toward the other semicircular flow path.

4. The injection mold for stabilizing a baffle plate of a baffle plate pipe as claimed in claim 1, wherein a sealing rubber ring is arranged on the sealing cover.

5. An injection mold according to any one of claims 1 to 4, wherein the mold core is provided with 2 separate mold cavities, and the baffle tube is located between the 2 mold cavities.