CN215151432U

CN215151432U - Plastic mold with T-slot oblique inward core-pulling structure

Info

Publication number: CN215151432U
Application number: CN202023213917.XU
Authority: CN
Inventors: 唐春江; 陈捷飞; 孙菲琼
Original assignee: SHANGHAI YINGZHI AUTOMOBILE ELECTRONICS CO Ltd
Current assignee: SHANGHAI YINGZHI AUTOMOBILE ELECTRONICS CO Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-12-14
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a plastic mold with a T-shaped groove obliquely inward core-pulling structure. The back mold backing plate of the plastic mold and the back mold template are connected by spacer screws, the back mold core is embedded in the back mold template, and the front The mold core is set on the surface of the rear mold core, a mold cavity is formed between the front mold core and the rear mold core, and a first parting surface is formed between the rear mold pad and the rear mold template, and the rear mold core and the front mold are formed. A second parting surface is formed between the mold cores; the plastic mold also includes a core-pulling sliding seat and a core-pulling insert, the core-pulling sliding seat is fixed on the back mold pad and extends to the back mold template, and the rear mold core is provided with a communication connection. The inclined hole of the cavity, the core-pulling sliding seat and the core-pulling insert are combined through a T-shaped chute, and the core-pulling insert is driven by the core-pulling sliding seat to move along the T-shaped chute to the rear. The oblique hole of the mold core. The plastic mold realizes core-pulling in advance to extract the surface features of the plastic parts from the mold cavity, ensures normal mold ejection, realizes the processing of plastic parts with complex structures, and reduces the production cost of plastic products.

Description

Plastic mould with T-shaped groove inclined inward core-pulling structure

Technical Field

The utility model relates to an injection moulding plastic mould technical field especially relates to a plastic mould of structure of loosing core in T-arrangement groove slant.

Background

The plastic mould is a combined mould for compression moulding, extrusion moulding, injection, blow moulding and low-foaming moulding, and a series of plastic parts with different shapes and sizes can be processed by the coordination change of a convex mould, a concave mould and an auxiliary moulding system of the mould. The conventional plastic mold comprises a female mold assembly substrate with a variable cavity and a male mold assembly substrate with a variable core. When the plastic part 10 has a shape feature 11 on its bevel, as shown in fig. 1, the shape feature 11 is not aligned with the mold opening movement direction and forms an angle, resulting in an undercut in the mold, and the direct mold ejection may result in the shape feature 11 being missing or broken. Therefore, the plastic mould can not be directly demoulded in the upper mould and the lower mould according to the traditional plastic mould, and the conventional slide block core-pulling demould can not be carried out; therefore, the application of the traditional plastic mold has certain limitation, the processing of plastic parts with complex structures cannot be realized, and the manufacturing cost of plastic products is improved.

Disclosure of Invention

The utility model aims to solve the technical problem that a T-slot structure of loosing core to one side is provided to plastic mould, this plastic mould overcomes the defect of complex structure plastic part processing, looses core in advance and takes out plastic part surface characteristic from the die cavity, ensures normal demolding, realizes the processing of complex structure plastic part, reduces the cost of manufacture of plastic product.

In order to solve the technical problem, the plastic mold of the T-shaped groove slant inner core-pulling structure of the present invention comprises a rear mold liner plate, a rear mold template, a rear mold core and a front mold core, wherein the rear mold liner plate is connected with the rear mold template through a set screw, the rear mold core is embedded into the rear mold template, the front mold core is arranged on the surface of the rear mold core, a mold cavity is formed between the front mold core and the rear mold core, a first parting surface is formed between the rear mold liner plate and the rear mold template, and a second parting surface is formed between the rear mold core and the front mold core; this plastic mould is still including the sliding seat of loosing core and the mold insert of loosing core, the sliding seat of loosing core is fixed in back mould backing plate is and extend to back mould template, back mould benevolence is equipped with the intercommunication the inclined hole of die cavity, loose core through the combination of T shape spout between sliding seat and the mold insert of loosing core, and the mold insert of loosing core removes extremely along T shape spout through the sliding seat drive of loosing core the inclined hole of back mould benevolence.

Further, the bottom of the core-pulling sliding seat is fixed on the rear die base plate, a through hole communicated with the inclined hole of the rear die core is formed in the position of the core-pulling sliding seat of the rear die template, and the upper portion of the core-pulling sliding seat is located in the through hole of the rear die template.

Further, the core pulling sliding seat is provided with an oblique T-shaped sliding groove, the core pulling insert is provided with a T-shaped sliding block matched with the oblique T-shaped sliding groove, and when the rear mold base plate is separated from the rear mold template, the core pulling sliding seat moves downwards along with the rear mold base plate and drives the core pulling insert to move in an oblique hole of the rear mold core.

Because the plastic mould of the T-shaped groove slant inner core-pulling structure adopts the technical scheme, namely, the rear mould backing plate and the rear mould template of the plastic mould are connected through the distance screws, the rear mould core is embedded into the rear mould template, the front mould core is arranged on the surface of the rear mould core, a mould cavity is formed between the front mould core and the rear mould core, a first parting surface is formed between the rear mould backing plate and the rear mould template, and a second parting surface is formed between the rear mould core and the front mould core; this plastic mould is still including the sliding seat of loosing core and the mold insert of loosing core, and the sliding seat of loosing core is fixed in the back mould backing plate and extends to back mould template, and back mould benevolence is equipped with the intercommunication the inclined hole of die cavity, loose core through the combination of T shape spout between sliding seat and the mold insert of loosing core, and the mold insert of loosing core removes extremely along T shape spout through the sliding seat drive of loosing core the inclined hole of back mould benevolence. This plastic mould overcomes the defect of complex structure plastic part processing, looses core in advance and takes out plastic part surface characteristic from the die cavity, ensures normal demolding, realizes the processing of complex structure plastic part, reduces the cost of manufacture of plastic product.

Drawings

The invention will be described in further detail with reference to the following drawings and embodiments:

FIG. 1 is a schematic view of a plastic part;

FIG. 2 is a schematic structural view of a plastic mold with a T-shaped groove slant inner core-pulling structure according to the present invention;

FIG. 3 is a schematic view of the plastic mold in an open state;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic view of the structure of the core-pulling sliding seat in the plastic mold;

fig. 6 is a schematic structural view of the core-pulling insert in the plastic mold.

Detailed Description

Embodiment is as shown in fig. 2 and 3, the plastic mold of the T-shaped groove slant inner core-pulling structure of the present invention includes a rear mold cushion plate 1, a rear mold platen 2, a rear mold insert 3 and a front mold insert 4, the rear mold cushion plate 1 is connected to the rear mold platen 2 by a set screw, the rear mold insert 3 is embedded into the rear mold platen 2, the front mold insert 4 is disposed on the surface of the rear mold insert 3, a mold cavity is formed between the front mold insert 4 and the rear mold insert 3, a first parting surface PL1 is formed between the rear mold cushion plate 1 and the rear mold platen 2, and a second parting surface PL2 is formed between the rear mold insert 3 and the front mold insert 4; this plastic mould is still including the sliding seat 5 of loosing core and the mold insert 6 of loosing core, the sliding seat 5 of loosing core is fixed in back mould backing plate 1 is and extend to back mould template 2, back mould benevolence 3 is equipped with the intercommunication the inclined hole 31 of die cavity, loose core between sliding seat 5 and the mold insert 6 of loosing core through the combination of T shape spout, and the mold insert 6 of loosing core removes extremely along T shape spout through 5 drives of the sliding seat of loosing core the inclined hole 31 of back mould benevolence 3.

Preferably, the bottom of the core-pulling sliding seat 5 is fixed on the rear die base plate 1, the rear die plate 2 is provided with a through hole 21 communicating with the inclined hole 31 of the rear die core 3 at the position of the core-pulling sliding seat 5, and the upper part of the core-pulling sliding seat 5 is located in the through hole 21 of the rear die plate 2.

Preferably, as shown in fig. 5 and 6, the core-pulling sliding seat 5 is provided with an oblique T-shaped sliding groove 51, the core-pulling insert 6 is provided with a T-shaped sliding block 61 matched with the oblique T-shaped sliding groove 51, and when the rear mold pad 1 is separated from the rear mold platen 2, the core-pulling sliding seat 5 moves down along with the rear mold pad 1, and simultaneously drives the core-pulling insert 6 to move in the inclined hole 31 of the rear mold core 3.

As shown in fig. 3 and 4, when the plastic mold is ready to be opened after completing one injection molding operation, the injection molding machine starts to move and drives the rear mold base plate 1 to move simultaneously, at this time, the first parting surface PL1 of the plastic mold is opened, and the second parting surface PL2 is still in a closed state. Because the core-pulling sliding seat 5 is fixed in the rear die base plate 1, the core-pulling sliding seat 5 moves together with the rear die base plate 1; the core-pulling insert 6 is driven by the core-pulling sliding seat 5 to move in the inclined hole 31 of the rear mold core 3, and when the shape feature 11 in the plastic part 10 is completely separated from the core-pulling insert 6, the mold opening distance of the first parting surface PL1 can be fixed. After the mold opening distance of the first parting surface PL1 is fixed, the rear mold plate 2 and the rear mold core 3 are continuously pulled to move through the distance screws, and at the moment, the second parting surface PL2 is opened, so that the plastic part 10 can be taken out of the mold cavity.

The plastic mold solves the technical problem that the shape characteristic on the inclined plane of the plastic part cannot be demoulded by the oblique inner core-pulling motion mechanism, the shape characteristic 11 in the plastic part 10 is separated from the core-pulling insert 6 by pulling the core in advance, so that the plastic part can be demoulded normally, the characteristic of the plastic part product is ensured to be intact during demould, and the structural stability of the plastic part is ensured. The problem of plastic part goods single structure, scalability is poor is solved.

Claims

1. A plastic mould with a T-shaped groove inclined inward core-pulling structure comprises a rear mould base plate, a rear mould template, a rear mould core and a front mould core, wherein the rear mould base plate is connected with the rear mould template through a distance screw, the rear mould core is embedded into the rear mould template, the front mould core is arranged on the surface of the rear mould core, a mould cavity is formed between the front mould core and the rear mould core, a first parting surface is formed between the rear mould base plate and the rear mould template, and a second parting surface is formed between the rear mould core and the front mould core; the method is characterized in that: this plastic mould is still including the sliding seat of loosing core and the mold insert of loosing core, the sliding seat of loosing core is fixed in back mould backing plate is and extend to back mould template, back mould benevolence is equipped with the intercommunication the inclined hole of die cavity, loose core through the combination of T shape spout between sliding seat and the mold insert of loosing core, and the mold insert of loosing core removes extremely along T shape spout through the sliding seat drive of loosing core the inclined hole of back mould benevolence.

2. The plastic mold with the T-shaped groove inclined inward core pulling structure according to claim 1, characterized in that: the bottom of the core-pulling sliding seat is fixed on the rear die base plate, the rear die template is provided with a through hole communicated with the inclined hole of the rear die core, and the upper part of the core-pulling sliding seat is located in the through hole of the rear die template.

3. The plastic mold of the T-shaped groove oblique inner core-pulling structure according to claim 1 or 2, characterized in that: the core-pulling slide seat is provided with a slant T-shaped sliding groove, the core-pulling insert is provided with a T-shaped sliding block matched with the slant T-shaped sliding groove, and when the rear mold base plate is separated from the rear mold template, the core-pulling slide seat moves downwards along with the rear mold base plate and drives the core-pulling insert to move in an inclined hole of the rear mold core.