CN218803591U

CN218803591U - Double-color injection mold for automobile windshield

Info

Publication number: CN218803591U
Application number: CN202223051907.XU
Authority: CN
Inventors: 张春标
Original assignee: Changchun Hengxing Group Co ltd
Current assignee: Changchun Hengxing Group Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-04-07
Anticipated expiration: 2032-11-16

Abstract

The utility model discloses a double-colored injection mold of car windshield, include: the device comprises a front die, a rear die, an oil cylinder, an inclined guide post, a slide block, a driving block, a connecting block and a core pulling block; the front mold and the rear mold move relatively during mold closing and opening; the slide block moves back and forth under the action of the motion of the inclined guide post; the driving block is connected to the oil cylinder through a T-shaped groove structure; the connecting block is connected to the driving block through a dovetail groove structure; the loose core is fixedly connected with the connecting block and moves under the action of the oil cylinder through the driving block and the connecting block; when the core pulling moves forwards and contacts with the front mold, the rear mold and the front mold are matched to form a closed first cavity, and a first injection product is formed in the first cavity; when the core pulling moves backwards and contacts with the sliding block, the rear die and the front die are matched to form a closed second cavity, and a second injection product is molded in the second cavity. The utility model provides a double-colored injection mold of car windshield can realize that the mould once opens, compound die shaping product, eliminates product and weighs wounded defect, flexible glue run and glues the defect.

Description

Double-color injection mold for automobile windshield

Technical Field

The utility model relates to an injection mold technical field especially relates to a double-colored injection mold of car windshield.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate dimensions, and the injection molding is a processing method used for batch production of parts with complex shapes, in particular to a method for injecting heated and melted plastics into a mold cavity from an injection molding machine at high pressure and obtaining a formed product after cooling and solidification.

The double-color injection molding refers to that two kinds of plastics with different colors and different types are mostly matched by a soft plastic and a hard plastic, and the two kinds of plastics are organically combined together to form a complete product by performing injection molding according to a certain sequence through a double-color injection molding machine. The two-color injection mold is used for the injection molding process. Generally, the double-color injection mold is a rotary double-color injection mold or a movable double-color injection mold, and after injecting the hard glue, the product is injected into the soft glue cavity in a mode of secondary mold opening rotation or movement and then is injected with the soft glue. Because the process of double-color injection molding is complex, the precision of the required mold is high, the number of sliding blocks on the mold is large, the hot runner is complex, the selection of the feeding position is difficult, the common double-color injection mold generally only has one product and two cavities, and because each common double-color injection mold needs twice injection molding, when a plurality of products with the same soft rubber material and the same hard rubber material are produced, a plurality of sets of molds need to be manufactured, and the injection molding is carried out for a plurality of times, so that the time is wasted, and the raw materials are wasted.

In the prior art, the angle of the soft and hard glue sealing surface of the automobile windshield is about 20 degrees with the mold opening direction, and the angle is small; if rotating injection is carried out, the injection of soft glue needs to be carried out by opening and closing the mould for the second time, and the mould has the defects of product damage caused by pressing and glue leakage of the soft glue in the process of closing the mould for the second time.

SUMMERY OF THE UTILITY MODEL

Based on above-mentioned current situation, the utility model discloses a main aim at provides a double-colored injection mold of car windshield can realize that the mould once opens, compound die shaping product, can eliminate product crushing defect, flexible glue run and glue the defect.

The utility model provides a two-color injection mold of car windshield which characterized in that includes:

the front die comprises a front die 10, wherein an inclined guide post 11 is arranged on the front die 10;

the die comprises a rear die 20, wherein a sliding block 21, a driving block 22, a connecting block 23 and a loose core 24 are arranged on the rear die 20;

the oil cylinder 30 is positioned on the rear die 20;

the front mold 10 and the rear mold 20 move relatively during mold closing and mold opening;

the slide block 21 moves back and forth under the action of the motion of the inclined guide post 11;

the driving block 22 is connected to the oil cylinder 30 through a T-shaped groove structure;

the connecting block 23 is connected to the driving block 22 through a dovetail groove structure;

the loose core 24 is fixedly connected with the connecting block 23 and moves under the action of the oil cylinder 30 through the driving block 22 and the connecting block 23;

when the core pulling 24 moves forwards to contact with the front mold 10, the rear mold 20 and the front mold 10 are matched to form a closed first cavity, and a first injection product is molded in the first cavity;

when the core pulling 24 moves backwards and contacts with the sliding block 21, the rear die 20 and the front die 10 are matched to form a closed second cavity, and a second injection product is molded in the second cavity.

Further, a plurality of oil cylinders 30 are provided for controlling the actions of the front mold 10 and the rear mold 20, and the oil cylinders 30 are controlled by electronic micro switches.

The utility model has the advantages that:

the mould of the utility model can be used for molding products by opening and closing the mould at one time, and can eliminate the defect of product surface crush damage; the defect of glue running of soft glue is eliminated.

Drawings

Fig. 1 is a schematic diagram I of the structure of the mold of the present invention;

fig. 2 is a schematic diagram II of the mold structure of the present invention.

In the figure: 10-front die, 11-inclined guide post, 20-rear die, 21-slide block, 22-driving block, 23-connecting block, 24-loose core and 30-oil cylinder.

Detailed Description

The following detailed description of the present invention is provided with reference to the accompanying drawings, but it should be understood that the scope of the invention is not limited by the detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1, the automobile windshield double-color injection mold mainly comprises a front mold 10, a rear mold 20, an oil cylinder 30, an inclined guide post 11, a slide block 21, a driving block 22, a connecting block 23 and a loose core 24.

The inclined guide post 11 is fixed on the front die 10, the sliding block 21 is positioned on the rear die 20, the driving block 22 is connected on the oil cylinder 30 through a T-shaped groove structure, the connecting block 23 is connected on the driving block 22 through a dovetail groove structure, the core pulling 24 and the connecting block 23 are connected together through a positioning column, the core pulling 24 moves forward under the driving of the oil cylinder 30 to contact with the front die 10 to play a role in sealing hard glue during hard glue injection, and the core pulling 24 moves backward under the driving of the oil cylinder 30 to contact with the sliding block 21 to play a role in forming soft glue during soft glue injection.

The action principle is as follows: when the die is closed, the slide block 21 moves to the front die side along with the rear die, contacts with the inclined guide post and moves forwards under the action of the inclined guide post 11; the loose core 24 moves forwards to a limit position under the action of the oil cylinder 30 through the driving block 22 and the connecting block 23, and then hard glue is injected; after the hard rubber is formed, the loose core 24 moves backwards to a limit position through the driving block 22 and the connecting block 23 under the action of the oil cylinder 30, and then soft rubber is injected; and opening the mold after the soft rubber molding to take out the product.

The above are only examples of the present invention, and the general knowledge of the known specific structures and characteristics of the embodiments is not described herein, and it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the present invention, a plurality of modifications and improvements can be made, which should be regarded as the protection scope of the present invention, and these will not affect the utility model and the utility of the patent.

Claims

1. The utility model provides a two-color injection mold of car windshield which characterized in that includes:

the front die (10) is provided with an inclined guide post (11);

the rear die (20) is provided with a sliding block (21), a driving block (22), a connecting block (23) and a loose core (24);

the oil cylinder (30) is positioned on the rear die (20);

the front mold (10) and the rear mold (20) move relatively when the molds are closed and opened;

the sliding block (21) moves back and forth under the action of the movement of the inclined guide post (11);

the driving block (22) is connected to the oil cylinder (30) through a T-shaped groove structure;

the connecting block (23) is connected to the driving block (22) through a dovetail groove structure;

the loose core (24) is fixedly connected with the connecting block (23) and moves under the action of the oil cylinder (30) through the driving block (22) and the connecting block (23);

when the loose core (24) moves forwards to be in contact with the front mold (10), the rear mold (20) and the front mold (10) are matched to form a closed first cavity, and a first injection product is molded in the first cavity;

when the core pulling (24) moves backwards and contacts with the sliding block (21), the rear die (20) and the front die (10) are matched to form a closed second cavity, and a second injection product is molded in the second cavity.

2. The automobile windshield bi-color injection mold according to claim 1, wherein: the multiple oil cylinders (30) are used for controlling the actions of the front die (10) and the rear die (20), and the oil cylinders (30) are controlled by electronic microswitches.