CN211763139U

CN211763139U - Secondary ejection mechanism of injection mold

Info

Publication number: CN211763139U
Application number: CN201922492200.4U
Authority: CN
Inventors: 黄强; 黄海涛
Original assignee: Outang Technology Shenzhen Co ltd
Current assignee: Outang Technology Shenzhen Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-27
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses an injection mold's secondary ejection mechanism, this secondary ejection mechanism include that the lower tip of an department section of thick bamboo inner needle, an department section of thick bamboo outer needle and mouth of a river thimble, and the department section of thick bamboo inner needle is fixed on injection mold's bottom plate, and an department section of thick bamboo outer needle is established on an department section of thick bamboo inner needle, and its lower tip is fixed on the thimble board. The water gap thimble is coaxially arranged in the inner needle of the ejector sleeve and is connected with the outer needle of the ejector sleeve through a positioning pin. The inner needle of the ejector sleeve is provided with a through groove arranged along the axial direction of the inner needle of the ejector sleeve, and the positioning pin transversely penetrates through the through groove and can move in the through groove along the axial direction of the inner needle of the ejector sleeve. When the ejector sleeve outer needle moves to eject a product, the nozzle ejector pin can be synchronously driven to move to eject the nozzle from the flow channel of the ejector sleeve inner needle. Therefore, the requirement of ejecting the product with deep depth and similar to a tubular shape can be realized by only adopting one group of ejector plates.

Description

Secondary ejection mechanism of injection mold

Technical Field

The utility model relates to an injection mold's technical field, in particular to injection mold's secondary ejection mechanism.

Background

In the injection mold industry, for some tubular products with a certain depth, in order to make the products be ejected well, a double ejection mode is generally adopted for ejection. However, the existing secondary ejection mechanism is realized by two groups of ejector pin plates, so that the complexity of the mold structure is increased, and the manufacturing cost of the mold is also increased.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model aims at providing an injection mold's secondary ejection mechanism, its simple structure, low in manufacturing cost.

In order to achieve the above object, the utility model provides an injection mold's secondary ejection mechanism, it includes that an department section of thick bamboo is interior needle, an department section of thick bamboo outer needle and mouth of a river thimble, the lower tip of an department section of thick bamboo inner needle is fixed on injection mold's bottom plate, department section of thick bamboo outer needle is established on an department section of thick bamboo inner needle, and its tip is fixed on the thimble board down. The water gap thimble is coaxially arranged in the inner needle of the ejector sleeve and is connected with the outer needle of the ejector sleeve through a positioning pin. The inner needle of the ejector sleeve is provided with a through groove arranged along the axial direction of the inner needle of the ejector sleeve, and the positioning pin transversely penetrates through the through groove and can move in the through groove along the axial direction of the inner needle of the ejector sleeve.

Preferably, the ejector plate comprises an ejector pin panel and an ejector pin base plate which are arranged in a stacked manner. The lower end of the ejector sleeve outer needle is provided with a limiting round table along the outer circumference, and the lower side surface of the limiting round table is abutted against the ejector pin base plate. The ejector pin panel is provided with a limiting hole for an ejector sleeve outer pin to penetrate through, the limiting hole is in a step shape, and the lower side face of the limiting hole is abutted to the upper side face of the limiting round table.

Preferably, the ejector pin base plate is provided with a through hole for the outer needle of the ejector sleeve to pass through, and the diameter of the through hole is larger than the outer diameter of the inner needle of the ejector sleeve.

Preferably, the bottom plate is provided with mounting holes corresponding to the inner needles of the ejector sleeve one by one, and the lower end parts of the inner needles of the ejector sleeve are inserted into the corresponding mounting holes and fixed in the mounting holes through bolts installed from the lower side surface of the bottom plate.

The technical scheme of the utility model through with department section of thick bamboo inner needle cavity setting, set up the mouth of a river thimble in department section of thick bamboo inner needle to be connected mouth of a river thimble and department section of thick bamboo outer needle through the locating pin, set up the logical groove that can supply the locating pin activity simultaneously on department section of thick bamboo inner needle, from this, when the thimble board drives department section of thick bamboo outer needle and removes ejecting goods, can drive mouth of a river thimble simultaneously and remove the mouth of a river ejecting in the runner of department section of thick bamboo inner needle.

Compared with the prior art, the utility model provides a secondary ejection mechanism only needs to adopt a set of thimble board can realize the degree of depth and the ejecting demand of being similar to pipy goods, and its simple structure, action are smooth and easy, can control the processing cycle and the processing cost of mould effectively.

Drawings

FIG. 1 is a schematic structural view of a prior art tubular article;

fig. 2 is a schematic structural diagram of an injection mold to which the secondary ejection mechanism of the present invention is applied before ejection;

fig. 3 is a schematic structural diagram of an injection mold to which the secondary ejection mechanism of the present invention is applied after ejection;

fig. 4 is an overall schematic view of the secondary ejection mechanism of the present invention;

fig. 5 is an exploded schematic view of the secondary ejection mechanism of the present invention;

the purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.

Detailed Description

The utility model provides an injection mold of tubulose class goods.

Referring to fig. 2, fig. 2 is a schematic structural diagram of an injection mold using the secondary ejection mechanism of the present invention before ejection.

The utility model provides an injection mold of tubular goods's main improvement lies in ejecting structural improvement, so, in figure 2, the mould structure of this part is emphatically shown, and the processing is left out to other parts of mould. As shown in fig. 2, the injection mold mainly includes a rear mold core 100, an ejector plate, a bottom plate 300 and a secondary ejection mechanism 400. The secondary ejection mechanism 400 includes an inner holder needle 410, an outer holder needle 420, and a nozzle tip needle 430. The ejector sleeve outer needle 420 is sleeved on the ejector sleeve inner needle 410, the upper end part of the ejector sleeve outer needle 420 and the upper end part of the ejector sleeve inner needle 410 are inserted into the rear mold core 100, and the ejector sleeve outer needle and the rear mold core 400 form a mold cavity together. The upper end of the ejector sleeve inner needle 410 is provided with a pouring gate, and the outer wall of the upper end is provided with a glue inlet position communicated with the mold cavity. The lower end of the outer cylinder needle 420 is fixed to the ejector plate, and the lower end of the inner cylinder needle 410 passes through the ejector plate and is fixed to the base plate 300.

As shown in fig. 4 to 5, the inner holder needle 410 is hollow, the nozzle needle 430 is coaxially disposed in the inner holder needle 410, and the nozzle needle 430 is connected to the outer holder needle 420 by a positioning pin 431. The inner barrel needle 410 is provided with a through groove 410a arranged along the axial direction thereof, and the positioning pin 431 traverses the through groove 410a and can move in the through groove 410a along the axial direction of the inner barrel needle 410.

As shown in fig. 3, when the ejector plate drives the outer cylinder needle 420 to move to eject the product 500 from the rear mold core 100, the nozzle ejector needle 430 is synchronously driven to move upwards to eject the nozzle 510 from the flow channel of the inner cylinder needle 410, so that the product 500 and the nozzle 510 are ejected simultaneously.

The technical scheme of the utility model through with the setting of department's section of thick bamboo interior needle 410 cavity, set up mouth of a river thimble 430 in department's section of thick bamboo interior needle 410 to be connected mouth of a river thimble 430 and department's section of thick bamboo outer needle 420 through locating pin 431, set up the logical groove 410a that can supply the activity of locating pin 431 simultaneously on department's section of thick bamboo interior needle 410, from this, when the thimble board drives department's section of thick bamboo outer needle 420 and removes ejecting goods 500, can drive mouth of a river thimble 430 to remove simultaneously and ejecting in the runner of mouth of a river 510 from department's section of thick bamboo.

Compared with the prior art, the utility model provides a secondary ejection mechanism only needs to adopt a set of thimble board can realize the ejecting demand of tubulose goods, and its simple structure, action are smooth and easy, can control the processing cycle and the processing cost of mould effectively.

Alternatively, as shown in fig. 2 or 3, in the present embodiment, the ejector plate includes an ejector pin panel 210 and an ejector pin base plate 220 which are stacked. The lower end of the driver outer needle 420 is provided with a limiting round platform 420a along the outer circumference, the thimble panel 210 is provided with a limiting hole 210a for the driver outer needle 420 to pass through, and the limiting hole 210a is in a step shape. When the mold is assembled, the lower surface of the stopper boss 420a abuts against the needle base plate 220, and when the needle panel 210 is fixed to the needle base plate 220, the stepped surface of the stopper hole 210a abuts against the upper surface of the stopper boss 420a at the same time, thereby fastening the outer cylinder needle 420 to the needle base plate 220.

Preferably, as shown in fig. 2, the ejector base plate 220 has a through hole 220a for passing the inner holder needle 420 therethrough, and the diameter of the through hole 220a is larger than the outer diameter of the inner holder needle 410, so as to prevent the ejector base plate 220 from directly interfering with the inner holder needle 410.

Optionally, as shown in fig. 2 and 5, the bottom plate 300 is provided with mounting holes corresponding to the barrel inner needles 410 one to one, when the mold is assembled, the lower end portions of the barrel inner needles 410 are inserted into the corresponding mounting holes, and a bolt 411 is inserted into the mounting holes from the lower side surface of the bottom plate and screwed into the screw hole 410b of the lower end portion of the barrel inner needle 410, so that the barrel inner needles 410 can be quickly fixed on the bottom plate 300.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A secondary ejection mechanism of an injection mold comprises an inner cylinder needle, an outer cylinder needle and a water gap thimble, wherein the lower end part of the inner cylinder needle is fixed on a bottom plate of the injection mold, the outer cylinder needle is sleeved on the inner cylinder needle, and the lower end part of the outer cylinder needle is fixed on a thimble plate; the nozzle ejector pin is coaxially arranged in the inner needle of the ejector sleeve and is connected with the outer needle of the ejector sleeve through a positioning pin; the inner needle of the ejector sleeve is provided with a through groove arranged along the axial direction of the inner needle of the ejector sleeve, and the positioning pin transversely penetrates through the through groove and can move in the through groove along the axial direction of the inner needle of the ejector sleeve.

2. The secondary ejection mechanism of an injection mold according to claim 1, wherein the ejector plate includes an ejector pin face plate and an ejector pin base plate which are arranged in a stacked manner; the lower end part of the ejector sleeve outer needle is provided with a limiting circular truncated cone along the outer circumference thereof, and the lower side surface of the limiting circular truncated cone is abutted against the ejector pin base plate; the ejector pin panel is provided with a limiting hole for an ejector sleeve outer pin to penetrate through, the limiting hole is in a step shape, and the lower side face of the limiting hole is abutted to the upper side face of the limiting round table.

3. The secondary ejection mechanism of an injection mold according to claim 2, wherein the ejector base plate has a through hole for passing the outer needle of the ejector sleeve, and the diameter of the through hole is larger than the outer diameter of the inner needle of the ejector sleeve.

4. The secondary ejection mechanism of an injection mold according to claim 1, wherein the bottom plate is provided with mounting holes corresponding to the inner pins of the ejector sleeve one to one, and the lower end portions of the inner pins of the ejector sleeve are inserted into the corresponding mounting holes and fixed in the mounting holes by a bolt installed from the lower side surface of the bottom plate.