CN212241862U

CN212241862U - Precise plastic metal composite die hardware supporting and fixing structure

Info

Publication number: CN212241862U
Application number: CN202020945756.4U
Authority: CN
Inventors: 黄强; 吴洲
Original assignee: Outang Technology Shenzhen Co ltd
Current assignee: Outang Technology Shenzhen Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-12-29
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses an accurate plastic metal composite mold hardware supports fixed knot and constructs for rectangular shape hardware provides the support at the compound die with the in-process of moulding plastics, avoids the hardware to warp, and guarantees that the product shape of product can not change. The hardware supporting and fixing structure comprises a fixing plate positioned between a bottom plate of a mold and an ejector pin bottom plate of the mold, and a space for the fixing plate to move up and down is formed between the bottom plate and the ejector pin bottom plate. And the fixed plate is provided with a support column, and the support column sequentially penetrates through a thimble base plate, a thimble panel, a B plate and a rear die core of the die and then is inserted into the die cavity. Two sides of the fixing plate are respectively provided with a driving mechanism for driving the fixing plate to move up and down between the bottom plate and the thimble bottom plate, one end of the driving mechanism is fixedly connected on the fixing plate, and the other end of the driving mechanism is fixedly connected on the B plate.

Description

Precise plastic metal composite die hardware supporting and fixing structure

Technical Field

The utility model relates to an accurate injection mold's technical field, in particular to accurate plastic metal composite mold hardware supports fixed knot and constructs.

Background

In some injection molding products, it is sometimes necessary to provide hardware in the injection molding product, and generally, during injection, the hardware is placed in an injection mold and then injection molding is performed, so that a fixed support structure for the hardware needs to be provided in the injection mold.

As shown in fig. 1-3, the hardware 900 in the injection molded product 800 is relatively long, and the bottom surface of the hardware 900 is substantially covered by the plastic product 800, and only the bottom surface of the right end is exposed. Therefore, when the hardware 900 is placed in a mold, only the supporting structure can be arranged on the bottom surface of the right end of the hardware 900, most of the hardware 900 can only be suspended, and in the process of mold closing and injection molding, the hardware 900 is very easy to deform to influence the quality of the product 800. If the support structure is provided on the left end side of the hardware 900, the original shape of the bottom surface of the product 800 is changed, and the production requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

The main objective of the utility model is to provide a precision plastic metal composite mold hardware supports fixed knot and constructs, aims at providing the support at the compound die and the in-process of moulding plastics for rectangular shape hardware, avoids the hardware to warp, and guarantees that the product shape of product can not change.

In order to achieve the above object, the utility model provides an accurate plastic metal composite mold hardware supports fixed knot and constructs, it includes a fixed plate that is located between the bottom plate of mould and the thimble bottom plate of mould, has the space that supplies the fixed plate activity from top to bottom between bottom plate and the thimble bottom plate.

And the supporting columns are arranged on the fixing plate and sequentially penetrate through the ejector pin base plate, the ejector pin panel, the B plate and the rear die core of the die and then are inserted into the die cavity of the die.

And two sides of the fixing plate are respectively provided with a driving mechanism for driving the fixing plate to move up and down between the bottom plate and the thimble bottom plate, one end of the driving mechanism is fixedly connected to the fixing plate, and the other end of the driving mechanism is fixedly connected to the B plate.

Optionally, the driving mechanism includes an oil cylinder and an oil cylinder connecting rod, the oil cylinder is fixedly disposed on the B plate, a first end of the oil cylinder connecting rod is connected with an output end of the oil cylinder, and a second end of the oil cylinder connecting rod is connected with the fixing plate.

Optionally, the two sides of the fixing plate are respectively provided with an inverted T-shaped slot extending from the edge to the middle. The second end of hydro-cylinder connecting rod has the connecting portion that are "worker" type, connecting portion joint in the draw-in groove.

Optionally, the movable stroke of the fixing plate between the base plate and the thimble base plate is greater than the distance from the bottom surface of the hardware to the bottom surface of the plastic.

Optionally, the bottom surface of the fixing plate is provided with a containing groove, and the supporting column sequentially penetrates through the containing groove and the ejector pin bottom plate, the ejector pin panel, the B plate and the rear mold core of the mold and then is inserted into the mold cavity. And a pressing plate is arranged in the accommodating groove, is fixed in the accommodating groove and presses the bottom of the supporting column in the accommodating groove.

Optionally, the pressing plate is fixed in the accommodating groove through a screw.

The technical scheme of the utility model through set up a fixed plate between the bottom plate and the thimble bottom plate at the mould, and set up the support column of cut straightly mould die cavity on this fixed plate, and set up actuating mechanism between the B board of fixed plate and mould, can withstand the hardware at the compound die with the in-process of moulding plastics through actuating mechanism from this, avoid the hardware to warp at the compound die with the in-process of moulding plastics, actuating mechanism still can be before penetrating gluey completion back pressurize simultaneously, the drive support column is retreated, make the sizing material fill the region that former support column withstood the hardware, guarantee that the original shape of product can not change.

Drawings

FIG. 1 is a schematic structural view of an injection molded product with embedded hardware;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

FIG. 4 is a schematic structural diagram of the present support column in the ejection state;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

FIG. 6 is a schematic view of the present support column in a retracted state;

FIG. 7 is an enlarged partial schematic view of FIG. 6 at D;

fig. 8 is a schematic structural view of the connection between the driving mechanism and the fixing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 of the specification, the precision plastic metal composite mold includes a B plate 100, an ejector pin panel 200, an ejector pin base plate 300, and a base plate 400, which are sequentially stacked, wherein a rear mold core 110 is disposed in the B plate 100. The hardware supporting and fixing structure includes a fixing plate 500, the fixing plate 500 is disposed between the bottom plate 400 and the thimble bottom plate 300, and the interval between the bottom plate 400 and the thimble bottom plate 300 is greater than the thickness of the fixing plate 500, so that the fixing plate 500 can move up and down between the bottom plate 400 and the thimble bottom plate 300.

The fixing plate 500 is provided with a supporting pillar 600, and the supporting pillar 600 sequentially passes through the thimble base plate 300, the thimble panel 200, the B plate 100 and the rear core 110 and then is inserted into the mold cavity. Two sides of the fixing plate 500 are respectively provided with a driving mechanism 700, the driving mechanism 700 is used for driving the fixing plate 500 to drive the fixing plate 500 to eject or retreat the fixing plate 500 from the mold cavity, one end of the driving mechanism 700 is fixedly connected to the B plate 100, and the other end is fixedly connected to the fixing plate 500.

As shown in fig. 4-5, when the hardware 900 is placed between the mold cavities, the driving mechanism 700 can drive the fixing plate 500 to ascend so as to drive the upper end of the supporting column 600 to jack up, and when the hardware 900 is placed, the supporting column 600 can support the hardware 900, so that the hardware 900 is prevented from deforming during mold closing and injection molding.

As shown in fig. 6-7, before pressure maintaining after glue injection, the driving mechanism 700 may drive the fixing plate 500 to move down to drive the upper end of the supporting column 600 to retreat a certain distance, where the retreated distance is just the thickness from the bottom surface of the product 800 to the bottom surface of the hardware 900, and then the last section of pressure maintaining is utilized to fill the area where the original supporting column 600 abuts against the hardware 900 with glue, so as to ensure that the original shape of the bottom surface of the product 800 is not changed.

The technical scheme of the utility model through set up a fixed plate 500 between bottom plate 400 and thimble bottom plate 300 at the mould, and set up the support column 600 of cut straightly mould die cavity on this fixed plate 500, and set up actuating mechanism 700 between the B board 100 of fixed plate 500 and mould, from this can withstand hardware 900 at the compound die with the in-process of moulding plastics through actuating mechanism 700, avoid hardware 900 to warp at the compound die with the in-process of moulding plastics, actuating mechanism 700 still can be before penetrating gluey back pressurize of accomplishing, drive support column 600 is retreated, make the sizing material fill former support column 600 and withstand hardware 900's region, guarantee that product 800's original shape can not change.

Optionally, in this embodiment, the driving mechanism 700 includes an oil cylinder 710 and an oil cylinder connecting rod 720, the oil cylinder 710 is fixedly disposed on the B plate 100, a first end of the oil cylinder connecting rod 720 is connected with the output end of the oil cylinder 710, and a second end thereof is connected with the fixing plate 500. Therefore, the oil cylinder 710 can drive the fixing plate 500 to move up and down to drive the supporting column 600 to eject and retract.

Preferably, as shown in fig. 8, on the basis of the above embodiment, the two sides of the fixing plate 500 are respectively provided with the reverse T-shaped slots 500a extending from the edge to the middle, and the second end of the cylinder connecting rod 720 is provided with the "i" shaped connecting portion 720a, when assembling, the connecting portions 720a of the two cylinder connecting rods 720 can be clamped into the slots 500a at the two sides of the fixing plate 500 to realize the quick connection of the cylinder connecting rods 720, and the disassembly is convenient without the help of other fasteners.

Preferably, in this embodiment, the sum of the thickness of fixing plate 500 and the thickness from the bottom surface of hardware 900 to the bottom surface of product 800 is smaller than the interval between bottom plate 400 and ejector pin bottom plate 300. Therefore, when the fixing plate 500 drives the supporting column 600 to retract from the bottom surface of the hardware 900 to the bottom surface of the product 800 under the action of the driving mechanism 700, the fixing plate 500 does not collide with the bottom plate 100, and the die is prevented from being damaged by collision.

Optionally, as shown in fig. 4, in the present embodiment, a receiving groove (not shown) is formed in the bottom surface of the fixing plate 500, and the supporting column 600 sequentially passes through the receiving groove and the ejector pin base plate 300, the ejector pin plate 200, the B plate 100 and the rear core 110 of the mold and then is inserted into the mold cavity. A pressing plate 610 is arranged in the accommodating groove, and the pressing plate 610 is fixed in the accommodating groove and presses the bottom of the support column 600 in the accommodating groove. The supporting column 600 is fixed on the fixing plate 500 by providing the accommodating groove pressable plate 610.

Preferably, as shown in fig. 4, on the basis of the above embodiment, the pressing plate 610 is locked and fixed in the accommodating groove by a screw 620, so as to facilitate the installation and the removal of the supporting column 600.

The above is only the preferred embodiment of the present invention, not used in the present invention, and any slight modifications, equivalent replacements and improvements made by the technical entity of the present invention to the above embodiments should be included in the protection scope of the technical solution of the present invention.

Claims

1. A hardware supporting and fixing structure of a precise plastic metal composite die is characterized by comprising a fixing plate positioned between a bottom plate of the die and an ejector pin bottom plate of the die, wherein a space for the fixing plate to move up and down is formed between the bottom plate and the ejector pin bottom plate;

a supporting column is arranged on the fixing plate, and the supporting column sequentially penetrates through a thimble base plate, a thimble panel, a B plate and a rear die core of the die and then is inserted into a die cavity of the die;

2. The precision plastic metal composite mold hardware supporting and fixing structure as claimed in claim 1, wherein the driving mechanism comprises an oil cylinder and an oil cylinder connecting rod, the oil cylinder is fixedly arranged on the B plate, a first end of the oil cylinder connecting rod is connected with an output end of the oil cylinder, and a second end of the oil cylinder connecting rod is connected with the fixing plate.

3. The precision plastic metal composite mold hardware supporting and fixing structure of claim 2, wherein the two sides of the fixing plate are respectively provided with an inverted T-shaped slot extending from the edge to the middle; the second end of hydro-cylinder connecting rod has the connecting portion that are "worker" type, connecting portion joint in the draw-in groove.

4. The precision plastic metal composite mold hardware support fixture structure of claim 1, wherein the sum of the thickness of said fixture plate and the thickness of the bottom surface of the hardware to the bottom surface of the product is less than the spacing between the bottom plate and the ejector pin bottom plate.

5. The precision plastic metal composite mold hardware supporting and fixing structure as claimed in any one of claims 1-4, wherein the bottom surface of the fixing plate is provided with a receiving groove, and the supporting column is inserted into the mold cavity after passing through the receiving groove and the ejector pin bottom plate, the ejector pin panel, the B plate and the rear mold core of the mold in sequence; and a pressing plate is arranged in the accommodating groove, is fixed in the accommodating groove and presses the bottom of the supporting column in the accommodating groove.

6. The precision plastic metal composite mold hardware support fixture structure of claim 5, wherein said pressure plate is fixed in said receiving groove by screws.