CN212372587U

CN212372587U - Structure for realizing inclined demoulding of product through conventional ejection

Info

Publication number: CN212372587U
Application number: CN202020737260.8U
Authority: CN
Inventors: 李静; 姚方超; 姚超峰
Original assignee: Kunshan Xuwen Precision Industry Co Ltd
Current assignee: Kunshan Xuwen Precision Industry Co Ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-01-19
Anticipated expiration: 2030-05-07

Abstract

The utility model relates to the technical field of injection molds, in particular to a structure for realizing inclined demoulding of products through conventional ejection, which solves the defects in the prior art and comprises a base and an upper mold, wherein the top of the base is connected with symmetrically arranged mold feet through hexagon screws, the top of the mold feet is fixed with a lower mold through bolts, the inner parts of the upper mold and the lower mold are respectively provided with an upper mold core and a lower mold core, and through the arrangement of structures such as a demoulding insert, a thimble push plate, a first thimble and a second thimble, after the mold is opened, the first thimble pushes the demoulding insert to slide along the lower mold core to drive the products to move obliquely, when the demoulding insert moves to the outlet of the lower mold core, the second thimble acts to completely eject the products, the inclined demoulding is realized by adopting a conventional ejection mechanism, the problem that the inclined ejection cannot be designed because of the small inner space of the products is solved, and the quality of the mold is, has strong practicability.

Description

Structure for realizing inclined demoulding of product through conventional ejection

Technical Field

The utility model relates to an injection mold technical field especially relates to a structure through the ejecting product slope drawing of patterns that realizes of conventionality.

Background

Injection molding is a method for producing and molding industrial products. The products are generally produced by rubber injection molding and plastic injection molding. The injection molding can be classified into injection molding and die casting. An injection molding machine (an injection machine or an injection molding machine for short) is a main molding device for making thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die, and the injection molding is realized by the injection molding machine and the die. However, barbs are arranged on the inner sides of partial products, the inner space of the products is small, and the design of the inclined top is insufficient, meanwhile, the four cavities of the mold product are symmetrical in pairs in one mold, if the conventional inclined top core pulling is adopted, the size of the inclined top can only be designed to be small due to the small product space, the strength of the inclined top is weakened, and the quality of the mold is unreliable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of insufficient space and unreliable quality in the prior art, and providing a structure for realizing inclined demoulding of products through conventional ejection.

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

a structure for realizing inclined demoulding of a product through conventional ejection comprises a base and an upper die, wherein the top of the base is connected with symmetrically-arranged die feet through a hexagon screw, the top of each die foot is fixedly provided with a lower die through a bolt, the interiors of the upper die and the lower die are respectively provided with an upper die core and a lower die core, the upper die core and the lower die core are oppositely arranged to form a cavity, the interior of the lower die core is slidably connected with a demoulding insert, the top of the base is fixedly provided with symmetrically-arranged oil cylinders through bolts, the interiors of the oil cylinders are provided with piston rods, the other ends of the piston rods are fixedly provided with a thimble push plate through nut bolts, the thimble push plate is fixedly provided with a first thimble through a countersunk bolt, the top of the first thimble is in sliding fit with the demoulding insert, the top of the base is slidably provided with a sliding block, the inside of fixing base slides and is provided with the second thimble, and the second thimble extends to the inside of die cavity.

Preferably, the top of the base is fixed with a guide rail through a countersunk bolt, and the sliding block is in sliding connection with the guide rail.

Preferably, a telescopic groove is formed in the fixing seat, and the second ejector pin is connected with the inside of the telescopic groove in a sliding mode.

Preferably, the bottom of the second thimble is fixedly connected with a spring through a buckle, and the other end of the spring is fixedly connected with the bottom wall of the telescopic groove through the buckle.

Preferably, a through hole is formed in the demolding insert, and the second ejector pin is embedded in the through hole.

Preferably, the bottom of the demolding insert is provided with a dovetail groove, and the first ejector pin is connected with the dovetail groove in a sliding manner.

Preferably, the thimble push plate is internally provided with an inner groove and a through hole which are communicated, the outside of the second thimble is provided with a baffle plate with an integrally formed structure, and the diameter of the through hole is 1.5 times of the diameter of the baffle plate.

Preferably, a movable groove is formed in the lower die, and the second ejector pin is partially located in the movable groove.

The utility model has the advantages that: compared with the prior art, the utility model has the advantages of simple structure and reasonable design, through the drawing of patterns mold insert, the thimble push pedal, the setting of first thimble and second thimble isotructure, after the mould die sinking, first thimble promotes the drawing of patterns mold insert and slides along the lower mould benevolence, it moves to drive the product slope, when the drawing of patterns mold insert removes the export of lower mould benevolence, the second thimble action is ejecting completely with the product, the conventional ejection mechanism has been adopted and has realized the slope drawing of patterns, broken away from the problem because of the little unable design oblique top in the inboard space of product, also make the quality of mould more reliable simultaneously, stronger practicality has.

Drawings

Fig. 1 is a front view of a structure for realizing inclined demolding of a product through conventional ejection according to the present invention;

FIG. 2 is a front view of a lower mold ejected once during demolding;

fig. 3 is the utility model provides a secondary ejecting front view during lower mould drawing of patterns.

In the figure: the ejector pin structure comprises a base 1, a die pin 2, a lower die 3, an upper die 4, an upper die core 5, a lower die core 6, a demoulding insert 7, an ejector pin push plate 8, an inner groove 9, a guide rail 10, a through hole 11, a fixed seat 12, a sliding block 13, a spring 14, a first ejector pin 15, a baffle 16 and a second ejector pin 17.

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.

Referring to fig. 1-3, a structure for realizing inclined demoulding of a product through conventional ejection comprises a base 1 and an upper die 4, wherein the top of the base 1 is connected with symmetrically arranged die pins 2 through hexagonal screws, the top of the die pins 2 is fixed with a lower die 3 through bolts, the interiors of the upper die 4 and the lower die 3 are respectively provided with an upper die core 5 and a lower die core 6, the upper die core 5 and the lower die core 6 are oppositely arranged to form a cavity, the interior of the lower die core 6 is slidably connected with a demoulding insert 7, the top of the base 1 is fixedly provided with symmetrically arranged oil cylinders through bolts, the interior of the oil cylinders is provided with a piston rod, the other end of the piston rod is fixedly provided with an ejector pin push plate 8 through nut bolts, the ejector pin push plate 8 is fixedly provided with a first ejector pin 15 through a countersunk bolt, the top of the first ejector pin 15 is in sliding fit with the demoulding insert 7, the top of the, a second thimble 17 is slidably disposed inside the fixed seat 12, and the second thimble 17 extends into the cavity.

Through the setting of drawing of patterns mold insert 7, thimble push pedal 8, first thimble 15 and second thimble 17 isotructure, after the mould die sinking, first thimble 15 promotes drawing of patterns mold insert 7 and slides along lower mould benevolence 6, drive the product slope and remove, when drawing of patterns mold insert 7 removed to the export of lower mould benevolence 6, second thimble 17 action is ejecting completely the product, the slope drawing of patterns has been realized to the conventional ejection mechanism of having adopted, the problem of the little unable design oblique top of interior side space of product has been got rid of, also make the quality of mould more reliable simultaneously, and strong practicality has.

In this embodiment, the top of the base 1 is fixed with a guide rail 10 through a countersunk head bolt, and the slider 13 is slidably connected with the guide rail 10.

In this embodiment, the fixing base 12 is provided with a telescopic slot therein, and the second thimble 17 is slidably connected to the inside of the telescopic slot.

In this embodiment, the bottom of the second thimble 17 is fixedly connected with a spring 14 through a buckle, and the other end of the spring 14 is fixedly connected with the bottom wall of the telescopic slot through a buckle.

In this embodiment, the demolding insert 7 has a through hole therein, and the second ejector pin 17 is embedded in the through hole.

In this embodiment, the bottom of the demolding insert 7 is provided with a dovetail groove, and the first ejector pin 15 is slidably connected to the dovetail groove.

In this embodiment, the thimble push plate 8 is provided with an inner groove 9 and a through hole 11 therein, which are communicated with each other, a baffle 16 of an integrally formed structure is provided outside the second thimble 17, and the diameter of the through hole 11 is 1.5 times of the diameter of the baffle 16.

In this embodiment, a movable groove is formed in the lower mold 3, and a portion of the second thimble 17 is located in the movable groove.

The utility model discloses a concrete implementation process as follows: after the die is closed, the injection molding machine injects the raw materials into the cavity through the pouring channel, then the product is molded, the upper die 4 moves to be separated from the lower die 3 for die opening, after the die opening action is finished, the oil cylinder pushes the piston rod to enable the thimble push plate 8 to move upwards, the thimble push plate 8 drives the first thimble 15 to push the demolding insert 7 and the product to move along the inclined direction of the lower die core 6, in the upward ejection process of the demolding insert 7, because the end part of the first thimble 15 is in self-adaptive sliding fit with the bottom of the demolding insert 7, and the demolding insert 7 can drive the second thimble 17 to wholly slide rightwards along the guide rail 10, the second thimble 17 can also gradually move upwards in the sliding process, and under the limitation of the baffle 16, the second thimble 17 can not push the product in the moving;

further, after one ejection action is completed, the first ejector pin 15 pushes the demolding insert 7 to the position shown in fig. 2, at this time, the baffle 16 moves to the position below the through hole 11, the second ejector pin 17 is completely ejected again by the aid of the pushing force of the spring 14, and the second ejector pin 17 pushes the product to be separated from the demolding insert 7, so that the demolding action is completed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A structure for realizing inclined demoulding of a product through conventional ejection comprises a base (1) and an upper die (4), and is characterized in that the top of the base (1) is connected with symmetrically-arranged die feet (2) through hexagonal screws, the top of the die feet (2) is fixed with a lower die (3) through bolts, the interiors of the upper die (4) and the lower die (3) are respectively provided with an upper die core (5) and a lower die core (6), the upper die core (5) and the lower die core (6) are oppositely arranged to form a die cavity, the interior of the lower die core (6) is slidably connected with a demoulding insert (7), the top of the base (1) is fixedly provided with symmetrically-arranged oil cylinders through bolts, the interior of each oil cylinder is provided with a piston rod, the other end of the piston rod is fixed with an ejector pin push plate (8) through nut bolts, and a first ejector pin (15) is fixed on the ejector pin push plate, the top of the first ejector pin (15) is in sliding fit with the demolding insert (7), the top of the base (1) is provided with a sliding block (13) in a sliding mode, the top of the sliding block (13) is provided with a fixing seat (12) through a hexagon screw, a second ejector pin (17) is arranged inside the fixing seat (12) in a sliding mode, and the second ejector pin (17) extends to the inside of the cavity.

2. The structure for realizing the inclined demoulding of the products through the conventional ejection as claimed in claim 1, wherein the guide rail (10) is fixed on the top of the base (1) through a countersunk head bolt, and the sliding block (13) is connected with the guide rail (10) in a sliding way.

3. The structure for realizing inclined product demoulding through conventional ejection according to claim 1, wherein the fixed seat (12) is provided with a telescopic slot inside, and the second ejector pin (17) is slidably connected with the telescopic slot inside.

4. The structure for realizing the inclined demoulding of the product through the conventional ejection as claimed in claim 3, wherein the bottom of the second ejector pin (17) is fixedly connected with a spring (14) through a buckle, and the other end of the spring (14) is fixedly connected with the bottom wall of the telescopic slot through a buckle.

5. The structure for realizing inclined demoulding of products by conventional ejection as claimed in claim 1, wherein the demoulding insert (7) is internally provided with a through hole, and the second ejector pin (17) is embedded in the through hole.

6. The structure for realizing inclined product demoulding by conventional ejection according to claim 1, wherein the bottom of the demoulding insert (7) is provided with a dovetail groove, and the first ejector pin (15) is slidably connected with the dovetail groove.

7. The structure for realizing inclined demoulding of products through conventional ejection as claimed in claim 1, wherein the ejector pin push plate (8) is internally provided with an inner groove (9) and a through hole (11) which are communicated with each other, the exterior of the second ejector pin (17) is provided with a baffle plate (16) which is integrally formed, and the diameter of the through hole (11) is 1.5 times of the diameter of the baffle plate (16).

8. The structure for realizing inclined demoulding of products by conventional ejection as claimed in claim 1, wherein the lower mould (3) is internally provided with a movable groove, and part of the second ejector pin (17) is positioned inside the movable groove.