Ejection Slide mechanism
The present invention relates to injection mold, more particularly to a kind of ejection Slide mechanism.
After action of injection terminates, plastic cooling and shaping in mould, due to volume contraction, package power is produced to core, when
When it is released from mould, the frictional force produced by package power is just must pull against.For the cylinder without through hole, shell class plastics system
Part, the demoulding also needs to overcome atmospheric pressure when releasing.In mould is injected, by the plastic products after cooling and solidifying and running gate system (water
Mouthful material) safety and nondestructive badly is released from mould mechanism's referred to as mould emptier, is also ejecting mechanism or ejecting mechanism.Safe nothing
Plastic is indeformable when damage refers to the demoulding, does not damage, not sticking to mould, white without top, and thimble position position does not influence plastic attractive in appearance.
For the product that thimble vestige can not be left on product, widespread practice is to increase such as water inlet sample at product edge
Rubbish make the purpose of product stripping reaching for lower thimble.
Due to increase water inlet at product edge, causing the work at the product cutting mouth of a river increases, and product edge can be remained
The vestige at the mouth of a river is cut, influence product is attractive in appearance.
The content of the invention
It is an object of the invention to provide a kind of ejection Slide mechanism for de-molding injection molded products.
Front mould according to an aspect of the invention, there is provided a kind of ejection Slide mechanism including retractable and rear mold, it is preceding
Mould includes front template and the front cavity fixed with front template, and front template side is fixed with shovel, and rear mold includes rear pattern plate, rear mold
Benevolence, Slide mechanism and ejecting mechanism, rear cavity is fixedly connected with rear pattern plate and its position is corresponding with front cavity, and Slide mechanism is led to
Carriage is crossed to be connected with rear pattern plate, Slide mechanism include line position seat and be secured to connection slide insert, line position seat with
Bullet needle device is provided between slide insert, playing needle device includes playing pin, spring and play pin briquetting, plays pin one end and runs through slide insert
And be connected by spring with slide insert, the other end is connected through line position seat with pin briquetting is played, and plays pin briquetting outside and shovel
Machine inner side mutually contacts, and ejecting mechanism includes thimble panel, Ejector Retainer Plate and the push rod being fixed on Ejector Retainer Plate, push rod and slip
Device is connected.
Using the ejection Slide mechanism of above technical scheme, when front and rear mould is opened, play pin briquetting and moved along shovel until de-
From the limitation of shovel, now, pin is played under the action of the spring gradually to being moved out product in line position seat.The ejection line position machine
Structure increases line position by the insignificant appearance of product, and wrapping portion glue position passes through ejector when line position is without departing from product
Whole Slide mechanism joint product is ejected a segment distance by structure, product is departed from rear cavity, then opens line position, departs from product
Slide mechanism, so as to reach the purpose of product stripping.Folder will not be remained during using mechanism's demoulding in the important appearance of product
Line, and Other Waste material need not be increased, post-processing workload, improve production efficiency and raising product appearance matter can be saved
In some embodiments, carriage includes chute insert and the sliding block on line position seat, chute insert tool
There is the chute matched with sliding block, push rod is fixedly connected with chute insert, chute insert is installed in rear pattern plate and can be along push rod
Moving direction is moved in rear pattern plate.Line position seat and the top lifting of slide insert one can be made by chute insert when push rod is ejected
Go out, thus line position seat is not likely to produce deformation so that play pin movement and be not blocked.
In some embodiments, also including machine drawing device, machine drawing device includes Double-ejection plate and is fixed on secondary top
Machine drawing on ejecting plate, machine drawing top is provided with the pull head for extending and catching on carriage to carriage.When push rod starts ejection,
Carriage tangles machine drawing by pull head makes it move together, and now carriage both sides are respectively by the ejecting force and machine drawing of push rod
Pulling force effect；When push rod reaches setting position, Double-ejection plate promotes machine drawing to continue to eject, and the pull head of machine drawing leaves cunning
Device is moved, now carriage is no longer influenced by the pulling force of machine drawing, and the Slide mechanism being fixed on carriage can be in rear pattern plate
The activity and pull head between, is easy to opening line position the glue position of product is departed from Slide mechanism, so as to reach the purpose of product stripping.
In some embodiments, pull head is located in chute and is mutually linked with chute.Thus pull head is also used as braking
The anti-limited slip block of part skids off chute.
In some embodiments, machine drawing passes through rear pattern plate.Thus mould first can be made compacter, save space and
Save mold materials, second rear pattern plate can also play a part of guiding to machine drawing, make machine drawing eject and retraction it is more steady and
In some embodiments, the direction that rear pattern plate, Double-ejection plate, thimble panel and Ejector Retainer Plate bounce back along push rod
In some embodiments, push rod passes through Double-ejection plate.Push rod can play a part of guide pillar makes Double-ejection
Plate is moved along push rod, is not required to set in addition the lead column of Double-ejection plate so that structure is compacter.
Brief description of the drawings
Fig. 1 is the installation diagram of the ejection Slide mechanism of one embodiment of the present invention.
Fig. 2 is the side schematic view of ejection Slide mechanism shown in Fig. 1.
Fig. 3 is the anterior vertical section schematic diagram of ejection Slide mechanism shown in Fig. 1.
Fig. 4 is the enlarged drawing of part shown in A in Fig. 3.
Fig. 5 be Fig. 1 shown in ejection Slide mechanism before and after mould separate after schematic diagram.
Fig. 6 is the schematic diagram after mould ejection for the first time before and after ejection Slide mechanism shown in Fig. 1.
Fig. 7 is the schematic diagram after mould Double-ejection before and after ejection Slide mechanism shown in Fig. 1.
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1 to Fig. 4 schematically shows a kind of ejection Slide mechanism of implementation method of the invention.As schemed
Show, the device includes retractable front mould and rear mold.
Wherein, front mould includes front template 1 and the front cavity 2 fixed with front template 1, and the side of front template 1 is fixed with shovel 3.
Rear mold includes rear pattern plate 15, rear cavity 13, Slide mechanism, ejecting mechanism, machine drawing device and base plate 21.Wherein, after
Die 13 is fixedly connected with rear pattern plate 15 and its position is corresponding with front cavity 2.
Slide mechanism is connected by carriage with rear pattern plate 15.Slide mechanism includes line position seat 10 and the company of being secured to
The slide insert 8 for connecing.
Bullet needle device 9 is provided between line position seat 10 and slide insert 8.Playing needle device 9 includes playing pin 91, spring 92 and plays pin
Briquetting 93.Wherein, the one end of pin 91 being played through slide insert 8 and being connected by spring 92 with slide insert 8, the other end is through row
Position seat 10 is connected with pin briquetting 93 is played.The outside of pin briquetting 93 is played mutually to be contacted with the inner side of shovel 3.
Ejecting mechanism includes thimble panel 17, Ejector Retainer Plate 19 and the push rod 18 being fixed on Ejector Retainer Plate 19.
Carriage includes chute insert 14 and the sliding block 101 on line position seat 10.Chute insert 14 has and sliding block
101 chutes 141 for matching.Push rod 18 is fixedly connected with chute insert 14.Chute insert 14 is installed in rear pattern plate 15 and can
Moved in rear pattern plate 15 along the moving direction of push rod 18.When push rod 18 is ejected can by chute insert 14 make line position seat 10 with
Slide insert 8 is ejected together, and thus line position seat 10 is not likely to produce deformation so that is played the movement of pin 91 and is not blocked.
Machine drawing device includes Double-ejection plate 16 and the machine drawing 5 being fixed on Double-ejection plate 16.The top of machine drawing 5 be provided with to
Chute insert 14 extends and catches on the pull head 51 of chute 141.Pull head 51 is also used as the anti-limited slip block 101 of brake component and skids off chute
141.When push rod 18 starts ejection, chute insert 14 tangles machine drawing 5 by pull head 51 makes it move together, now chute insert
Acting on for the pulling force of ejecting force and the machine drawing 5 of push rod 18 is received respectively in 14 both sides；When push rod 18 reaches setting position, Double-ejection
Plate 16 promotes machine drawing 5 to continue to eject, and the pull head 51 of machine drawing 5 leaves chute 141, and now chute insert 14 is no longer influenced by machine drawing 5
Pulling force, the Slide mechanism being fixed in chute insert 14 can be movable between rear pattern plate 15 and pull head 51, can be by addition
Open-and-close mechanism open slide insert 8 make product 4 glue position 41 depart from, the purpose of the demoulding of product 4 is made so as to reach.
In practice, can be by setting differential gear, or use difference between Ejector Retainer Plate and Double-ejection plate
Driving oil cylinder realize push rod 18 reach setting position after Double-ejection plate 16 promote machine drawing 5 continue eject.
Machine drawing 5 passes through rear pattern plate 15.Thus mould first can be made compacter, save space and save mold materials,
Second rear pattern plate 15 can also play a part of guiding to machine drawing 5, machine drawing 5 is ejected and is bounced back more steady and accurate.
The direction that rear pattern plate 15, Double-ejection plate 16, thimble panel 17, Ejector Retainer Plate 19 and base plate 21 bounce back along push rod 18
Set gradually.Push rod 18 passes through Double-ejection plate 16.Push rod 18 can play a part of guide pillar makes Double-ejection plate 16 along push rod
18 movements, are not required to set in addition the lead column of Double-ejection plate 16 so that structure is compacter.
Using the ejection Slide mechanism of above technical scheme, when front and rear mould is opened, play pin briquetting 93 along the movement of shovel 3 until
Depart from the limitation of shovel 3, now, play pin 91 in the presence of the spring 92 gradually to being moved out product 4 in line position seat 10
Glue position 41.The ejection Slide mechanism increases line position by the insignificant appearance in product 4, forms glue position 41, and glue position 41 is embedded in
Whole Slide mechanism joint product 4 is ejected a segment distance by slide insert 8, ejecting mechanism, product 4 is departed from rear cavity 13, so
The line position of slide insert 8 being opened afterwards, glue position 41 is departed from slide insert 8, the purpose of the demoulding of product 4 is made so as to reach.Using this
Clamp will not be remained during mechanism's demoulding in the important appearance of product, and Other Waste material need not be further added by, after can saving
Labor content, improve production efficiency and raising product appearance quality.
The knockout course of the ejection Slide mechanism is as shown in Figures 5 to 7.
As shown in figure 5, at the demoulding initial stage, after front and rear mould is separated, play the limitation that pin briquetting 93 departs from shovel 3, pin 91 is played in bullet
In the presence of spring 92 gradually to line position seat 10 in be moved out product 4.
As shown in fig. 6, demoulding mid-term, thimble panel 17 and Ejector Retainer Plate 19 eject chute insert 14 by push rod 18, even
The line position seat 10 being connected in chute insert 14 drives slide insert 8 to be ejected with chute insert 14.The glue position 41 of product 4 is embedded in
In slide insert 8, thus slide insert 8 drives product 4 to depart from rear cavity 13.Now, the pull head 51 of machine drawing 5 is located at chute 141
Interior, chute insert 14 tangles machine drawing 5 by pull head 51 makes it move together.Machine drawing 5 drive Double-ejection plate 16 along push rod 18 with
Chute insert 14 is moved.
As shown in fig. 7, the demoulding later stage, the arrival of push rod 18 setting position, the promotion continuation ejection of machine drawing 5 of Double-ejection plate 16,
The pull head 51 of machine drawing 5 leaves chute 141, and now chute insert 14 is no longer influenced by the pulling force of machine drawing 5, is fixed in chute insert 14
Line position seat 10 and slide insert 8 can between rear pattern plate 15 and pull head 51 activity, can be beaten by other open-and-close mechanism
Opening slide insert 8 departs from the glue position 41 of product 4, and the demoulding of product 4 is completed.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to protection model of the invention