CN111152419A

CN111152419A - Injection molding die convenient for demolding

Info

Publication number: CN111152419A
Application number: CN202010169956.XA
Authority: CN
Inventors: 徐畅
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-05-15

Abstract

The invention belongs to the technical field of dies, and particularly relates to an injection molding die convenient for demolding, which comprises an upper die core and a lower die core, wherein a buffer device is fixed at the lower end of the lower die core, two side plates are symmetrically and fixedly connected to the upper end of the lower die core, a second cross rod is inserted into each of the two side plates in a sliding manner, a groove is formed in the upper end of the lower die core and is positioned between the two side plates, a cavity is formed in the lower die core, a through hole is formed between the cavity and the groove, an ejector rod is arranged in the through hole, and the lower end of the ejector rod extends into the cavity. The invention realizes the taking-out of the product through a simple mechanism, saves the workload of workers, saves the cost of increasing ejection equipment, achieves two purposes by one stroke and has novelty.

Description

Injection molding die convenient for demolding

Technical Field

The invention belongs to the technical field of molds, and particularly relates to a mold for injection molding, which is convenient for demolding.

Background

The mould is a tool for producing plastic products, and the injection moulding is a processing method used for batch production of parts with complex shapes, and specifically, the mould is formed by injecting heated and melted plastics into a mould cavity from an injection moulding machine at high pressure, extruding, cooling and solidifying.

However, after the existing mold is opened, the product is difficult to take out, and the product needs to be manually taken out by a worker, so that the workload of the worker is increased, time and labor are wasted, an ejection mechanism needs to be additionally used for ejecting the product, and meanwhile, the whole equipment is complicated in structure and high in manufacturing cost.

Disclosure of Invention

The present invention is directed to a mold for injection molding, which is easy to release, and solves the above problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme:

a mold for injection molding convenient for demolding comprises an upper mold core and a lower mold core, wherein a buffer device is fixed at the lower end of the lower mold core, two side plates are symmetrically and fixedly connected at the upper end of the lower mold core, a second cross rod is inserted on each of the two side plates in a sliding manner, a groove is formed in the upper end of the lower mold core and is positioned between the two side plates, a cavity is formed in the lower mold core, a through hole is formed between the cavity and the groove, a push rod is arranged in the through hole, the lower end of the push rod extends into the cavity, two linkage rods are not arranged in the cavity, the two linkage rods are positioned at two sides of the push rod and are rotatably connected with the push rod, one ends, far away from each other, of the two linkage rods are rotatably connected with a first cross rod, one end of the first cross rod penetrates through the lower mold core and extends outwards, a support plate is fixedly connected at, the lower extreme of telescopic link is fixed with first montant, mould benevolence on the bottom fixedly connected with of first montant, go up mould benevolence and recess and match each other, one side relative with the second horizontal pole of first montant all is fixed with the connecting block, two rotate between the connecting block and be connected with the connecting rod, two the one end that the second inserted bar was kept away from each other all is fixed with the second montant, the lower extreme and the first horizontal pole fixed connection of second montant.

Preferably, the buffer device comprises a damping block, a cushion block and a rubber ring, wherein an object placing groove is formed in the cushion block, the rubber ring is fixedly connected with the inner bottom end of the object placing groove, the bottom end of the damping block is fixedly connected with the upper end of the rubber ring, and the upper end of the damping block is fixedly connected with the bottom end of the lower die core.

Preferably, a spring is fixedly connected between the lower end of the ejector rod and the bottom end in the cavity.

Preferably, the telescopic rod is an electric telescopic rod.

Preferably, the ejector rod is matched with the through hole.

Compared with the prior art, the invention has the beneficial effects that: when the moulding back of product, the telescopic link rebound for go up mould benevolence and the separation of lower mould benevolence, drive two second horizontal poles through the connecting rod simultaneously and be close to each other, then drive two first horizontal poles through two second montants and be close to each other, finally make ejector pin rebound, order the product in the recess, be convenient for take out the product, through simple mechanism, save workman's work load, save the cost that increases ejection equipment again, kill two birds with one stone, have the novelty.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side partial view of the present invention.

In the figure: 1-supporting plate, 2-telescopic rod, 3-connecting rod, 4-side plate, 5-first vertical rod, 6-damping block, 7-cushion block, 8-connecting block, 9-ejector rod, 10-lower die core, 11-linkage rod, 12-rubber ring, 13-first cross rod, 14-upper die core, 15-second vertical rod and 16-second cross rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a mould for injection moulding convenient for demoulding comprises an upper mould core 14 and a lower mould core 10, wherein the upper mould core 14 and the lower mould core 10 jointly form a mould, a buffer device is fixed at the lower end of the lower mould core 10 and increases buffer to prevent the upper mould core 14 from being not matched with a groove caused by external vibration, the buffer device reduces the rigid collision force between the upper mould core 14 and the lower mould core 10 to cause the shaking of the whole device, two side plates 4 are symmetrically and fixedly connected at the upper end of the lower mould core 10, a second cross rod 16 is inserted on the two side plates 4 in a sliding way, a groove is arranged at the upper end of the lower mould core 10 and is positioned between the two side plates 4, a cavity is arranged inside the lower mould core 10, a through hole is arranged between the cavity and the groove, a mandril 9 is arranged in the through hole, the lower end of the mandril 9 extends into the cavity, the mandril 9 can move up, the two linkage rods 11 are positioned at two sides of the ejector rod 9 and are rotationally connected with the ejector rod 9, one ends of the two linkage rods 11, which are far away from each other, are rotationally connected with a first cross rod 13, one end of the first cross rod 13 penetrates through the lower die core 10 and extends outwards, the first cross rod 13 can slide on the lower die core 10, the upper ends of the two side plates 4 are fixedly connected with a supporting plate 1 to form a stable structure to avoid shaking, a telescopic rod 2 is fixed at the lower end of the supporting plate 1, a first vertical rod 5 is fixed at the lower end of the telescopic rod 2, an upper die core 14 is fixedly connected at the bottom end of the first vertical rod 5, the telescopic rod 2 can drive the upper die core 14 to move up and down through the first vertical rod 5, the upper die core 14 is matched with the groove, the upper die core 14 which moves up and down can realize the shaping of a product by matching with the groove, connecting blocks 8 are fixed, one end that two second inserted bars 16 kept away from each other all is fixed with second montant 15, the lower extreme and the first horizontal pole 13 fixed connection of second montant 15, the first montant 5 that reciprocates can make the second horizontal pole 16 of both sides be close to each other or keep away from through connecting block 8 and connecting rod 3, rethread second montant 15 realizes that first horizontal pole 13 is close to each other and keeps away from, finally realizes that ejector pin 9 reciprocates in the through-hole, can order the finished product, save workman's operation.

Furthermore, the buffer device comprises a damping block 6, a cushion block 7 and a rubber ring 12, an object placing groove is formed in the cushion block 7, the rubber ring 12 is fixedly connected with the inner bottom end of the object placing groove, the bottom end of the damping block 6 is fixedly connected with the upper end of the rubber ring 12, and the upper end of the damping block 6 is fixedly connected with the bottom end of the lower mold core 10, so that the structure is stable and simple, and the manufacturing cost is saved; furthermore, a spring is fixedly connected between the lower end of the ejector rod 9 and the inner bottom end of the cavity, so that the ejector rod 9 can move to have an elastic effect, and damage caused by over-strong rigid motion is avoided; furthermore, the telescopic rod 2 adopts an electric telescopic rod, so that the die sinking and corresponding ejection actions are convenient to realize; furthermore, the ejector rod 9 is matched with the through hole, so that raw materials are prevented from flowing into the cavity from the groove.

The working principle is as follows: at first, the plastics that will melt heat pour into the recess into, it makes upper die core 14 closely coincide with the recess to start telescopic link 2 downstream, realize the extrusion design, after the product is moulding, telescopic link 2 upstream, make upper die core 14 and lower mould benevolence 10 separation, connecting rod 3 drives two second horizontal poles 16 and is close to each other this moment, then drive two first horizontal poles 13 and be close to each other through two second montants 15, under the cooperation of rethread gangbar 11, finally make ejector pin 9 upwards move in the through-hole, the upper end of ejector pin 9 gets into the recess by the through-hole, realize ordering the product from the recess, the workman of being convenient for will take out the product, through simple mechanism, save workman's work load, save the cost that increases ejection device again, kill two birds with one stone, and have novelty.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mould for injection moulding convenient to drawing of patterns, includes last mould benevolence (14) and lower mould benevolence (10), its characterized in that: the lower end of the lower die core (10) is fixed with a buffer device, the upper end of the lower die core (10) is symmetrically and fixedly connected with two side plates (4), a second cross rod (16) is inserted on each of the two side plates (4) in a sliding manner, a groove is formed in the upper end of the lower die core (10), the groove is positioned between the two side plates (4), a cavity is formed in the lower die core (10), a through hole is formed between the cavity and the groove, an ejector rod (9) is arranged in the through hole, the lower end of the ejector rod (9) extends into the cavity, the cavity is not provided with two linkage rods (11), the two linkage rods (11) are positioned on two sides of the ejector rod (9) and are rotatably connected with the ejector rod (9), one ends, far away from each other, of the two linkage rods (11) are rotatably connected with a first cross rod (13), one end of the first cross rod (13) penetrates through the lower die, two upper end fixedly connected with backup pad (1) of curb plate (4), the lower extreme of backup pad (1) is fixed with telescopic link (2), the lower extreme of telescopic link (2) is fixed with first montant (5), mould benevolence (14) on the bottom fixedly connected with of first montant (5), it matches each other with the recess to go up mould benevolence (14), one side relative with second horizontal pole (16) of first montant (5) all is fixed with connecting block (8), two rotate between connecting block (8) and be connected with connecting rod (3), two the one end that second inserted bar (16) kept away from each other all is fixed with second montant (15), the lower extreme and first horizontal pole (13) fixed connection of second montant (15).

2. The mold for injection molding facilitating mold release according to claim 1, wherein: buffer includes snubber block (6), cushion (7) and rubber circle (12), be equipped with in cushion (7) and put the thing groove, rubber circle (12) with put thing inslot bottom end fixed connection, the bottom of snubber block (6) and the upper end fixed connection of rubber circle (12), the upper end of snubber block (6) and the bottom fixed connection of lower mould benevolence (10).

3. The mold for injection molding facilitating mold release according to claim 1, wherein: and a spring is fixedly connected between the lower end of the ejector rod (9) and the bottom end in the cavity.

4. The mold for injection molding facilitating mold release according to claim 1, wherein: the telescopic rod (2) adopts an electric telescopic rod.

5. The mold for injection molding facilitating mold release according to claim 1, wherein: the ejector rod (9) is matched with the through hole.