CN219486470U

CN219486470U - Double ejection mechanism

Info

Publication number: CN219486470U
Application number: CN202320792241.9U
Authority: CN
Inventors: 王彬阳
Original assignee: Xiamen Weike Molding Technology Co ltd
Current assignee: Xiamen Weike Molding Technology Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-08-08
Anticipated expiration: 2033-04-11

Abstract

The utility model provides a double ejection mechanism, which relates to the technical field of injection molds and is used for forming a part with a concave top surface and a slotted hole on the side surface, and comprises a straight ejector rod and an inclined ejector rod which are arranged on an ejector plate, and a straight ejector block and an inclined ejector block which are respectively connected with the straight ejector rod and the inclined ejector rod, wherein the straight ejector block is used for forming the concave top surface of the part, the inclined ejector block is used for forming the slotted hole on the side surface of the part, an abdicating surface is arranged on the straight ejector block along the horizontal direction, the top of the inclined ejector block is abutted with the abdicating surface, and the double ejection mechanism is configured to drive the straight ejector rod and the inclined ejector rod to eject upwards through the ejector plate so that the inclined ejector block moves inwards along the abdicating surface while being abutted with the straight ejector block, thereby demolding with the slotted hole on the top surface of the part, so that the problem that the inclined ejector cannot be demolded when the top surface of the part has the concave position is solved.

Description

Double ejection mechanism

Technical Field

The utility model relates to the technical field of injection molds, in particular to a double ejection mechanism.

Background

The injection molding part is inevitably provided with lateral shapes such as lateral holes, lateral grooves and the like, and forced demolding can be carried out in a very small number of cases, and lateral parting and core pulling demolding are generally required. The core pulling mechanism has more parts and is inconvenient to install, so that the cost of the die is increased. Therefore, in some cases, the side shape of the forming part of the inclined top can be adopted to reduce the setting of the core pulling mechanism, but the top surface of some parts is provided with a concave position, so that the integral inclined top can not be demoulded.

Disclosure of Invention

The utility model discloses a double ejection mechanism, and aims to solve the problem that an inclined ejection cannot be ejected when the top surface of a part is provided with a concave position.

The utility model adopts the following scheme:

the double ejection mechanism is used for forming a part with a concave top surface and a slotted hole on the side surface, and comprises a straight ejector rod and an inclined ejector rod which are arranged on an ejector plate, and a straight ejector block and an inclined ejector block which are respectively connected with the straight ejector rod and the inclined ejector rod, wherein the straight ejector block is used for forming the concave top surface of the part, the inclined ejector block is used for forming the slotted hole on the side surface of the part, a yielding surface is arranged on the straight ejector block along the horizontal direction, the top of the inclined ejector block is abutted to the yielding surface, and the double ejection mechanism is configured to drive the straight ejector rod and the inclined ejector rod to eject upwards through the ejector plate so that the inclined ejector block moves inwards along the yielding surface while being abutted to the yielding surface to eject upwards along with the straight ejector block, so that the double ejection mechanism is demoulded with the slotted hole on the side surface.

As a further improvement, the straight top block is provided with a containing groove, the top of the containing groove is provided with the abdication surface, and the inclined top block is limited to move in the containing groove.

As a further improvement, the straight top block is L-shaped.

As a further improvement, the oblique jacking block is welded with the oblique jacking rod or fixed by a fastener.

As a further improvement, the oblique jacking block is convexly provided with a forming part for forming a groove hole on the side face of the part.

As a further improvement, the straight jacking block is provided with a convex part for forming the concave position of the top surface of the part.

As a further improvement, one side of the straight jacking block is provided with an inclined jacking block, and the other side of the straight jacking block is used for being matched with the movable die core.

By adopting the technical scheme, the utility model can obtain the following technical effects:

the top surface concave position and the side slotted hole that this application was used for shaping the part respectively through setting up straight ejector block and oblique ejector block to drive straight ejector block and oblique ejector block upwards ejecting in step via straight ejector pin and oblique ejector pin, the oblique ejector block is moved along the face of stepping down on the straight ejector block when upwards ejecting, in order to take off with the side slotted hole. Thereby avoiding the problem that the top surface and the side surface are integrally formed and the inclined top is limited by the concave position of the top surface when moving along the horizontal direction, so that the demolding is impossible.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of the tilt head block of FIG. 1 when it is released;

FIG. 3 is a schematic illustration of the construction of a part of one embodiment of the present utility model;

fig. 4 is a schematic junction diagram of fig. 3 at another view angle.

Icon: 1-parts; 11-top surface concave position; 12-side slots;

2-a straight top block; 21-yielding surface; 22-convex part;

3-an oblique jacking block; 31-forming part.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Examples

With reference to fig. 1 to 4, the present embodiment provides a double ejection mechanism for forming a part 1 having a concave top surface and a slot on a side surface, comprising a straight ejector pin and an inclined ejector pin (not shown) disposed on an ejector plate, and a straight ejector block 2 and an inclined ejector block 3 connected to the straight ejector pin and the inclined ejector pin, respectively. Wherein, the straight ejector block 2 is used for forming the top surface concave position 11 of the part 1, the oblique ejector block 3 is used for forming the side slotted hole 12 of the part 1, the straight ejector block 2 is provided with a yielding surface 21 along the horizontal direction, the top of the oblique ejector block 3 is abutted with the yielding surface 21, and the ejection mechanism is configured to drive the straight ejector rod and the oblique ejector rod to eject upwards simultaneously through the ejector plate, so that the oblique ejector block 3 moves inwards along the yielding surface 21 while the abutting yielding surface 21 is ejected upwards along with the straight ejector block 2, thereby demolding with the side slotted hole 12.

Specifically, the straight top block 2 is provided with a convex portion 22 for forming the top concave portion 11, and the inclined top block 3 is provided with a forming portion 31 for forming the side slot 12. The straight ejector block 2 is welded and fixed with the straight ejector rod or fixed by a fastener or integrally formed, and the inclined ejector block 3 is welded and fixed with the inclined ejector rod or fixed by a fastener in the same way, and the method is not particularly limited. The structure of the straight ejector pins and the inclined ejector pins on the ejector pin plate and how to drive the ejector pin plate is the prior art, and will not be described herein.

It should be noted that, in this embodiment, the straight ejector block 2 and the oblique ejector block 3 are provided to respectively form the top surface recess 11 and the side surface slot 12 of the part 1, and the straight ejector block 2 and the oblique ejector block 3 are synchronously driven to eject upwards by the straight ejector rod and the oblique ejector rod, and the oblique ejector block 3 moves along the abdicating surface 21 on the straight ejector block 2 while ejecting upwards to be demoulded from the side surface slot 12. Thereby avoiding the problem that the top surface and the side surface are integrally inclined to be limited by the concave position 11 of the top surface when moving along the horizontal direction, so that demolding can not be realized.

In an alternative embodiment of the present utility model, the vertical ejector 2 is provided with a receiving groove, the top of the receiving groove forms a yielding surface 21, and the inclined ejector 3 is limited to move in the receiving groove. Preferably, the straight top block 2 is L-shaped. One side of the straight jacking block 2 is provided with an inclined jacking block 3, and the other side is used for adapting to the movable mould core.

The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model.

Claims

1. The double ejection mechanism is characterized by comprising a part, wherein the part is used for forming a concave position on the top surface, a slotted hole is formed in the side surface, the part comprises a straight ejector rod and an inclined ejector rod which are arranged on an ejector plate, and a straight ejector block and an inclined ejector block which are respectively connected with the straight ejector rod and the inclined ejector rod, wherein the straight ejector block is used for forming the concave position of the top surface of the part, the inclined ejector block is used for forming the slotted hole of the side surface of the part, an abdication surface is arranged on the straight ejector block along the horizontal direction, the top of the inclined ejector block is abutted with the abdication surface, and the double ejection mechanism is configured to drive the straight ejector rod and the inclined ejector rod to eject upwards through the ejector plate so that the inclined ejector block moves inwards along the abdication surface while being abutted with the upward ejection of the straight ejector block, so as to be demoulded with the slotted hole of the side surface.

2. The dual ejector mechanism of claim 1, wherein the straight ejector block is provided with a receiving slot, the top of the receiving slot forms the relief surface, and the angled ejector block is constrained to move within the receiving slot.

3. The dual ejector mechanism of claim 2, wherein the straight ejector block is L-shaped.

4. The dual ejector mechanism of claim 1, wherein the tilt head block is welded to the tilt head rod or secured by a fastener.

5. The dual ejector mechanism of claim 1, wherein the angled ejector block has a molding portion protruding therefrom for molding a side slot of the part.

6. The double ejection mechanism of claim 1, wherein the straight ejector block is provided with a convex portion for forming a concave position on the top surface of the part.

7. The dual ejector mechanism of claim 1, wherein the straight ejector block has an inclined ejector block received on one side thereof and adapted to the movable mold core on the other side thereof.