A kind of injection mold automatically removing cast gate waste material
Technical field
This utility model relates to mould, particularly to a kind of injection mold automatically removing cast gate waste material.
Background technology
Having the figure of mould in industrialized production, mould, in large batch of production, greatly improves production
Speed, drives developing rapidly of modernization industry.
As it is shown in figure 1, mould includes the upper mold that cope match-plate pattern is connected with cope match-plate pattern, the lower mold coordinated with upper mold, with lower mold even
The lower bolster connect, wherein upper mold and lower mold cooperatively form the die cavity for injecting products, are provided with sprue gate, work on cope match-plate pattern
When making, the raw material of molten condition enters die cavity from sprue gate, is formed for product after the cooling of the raw material in die cavity by the time.
But also can there is a part of raw material in sprue gate when injection raw material in die cavity, when the raw material in die cavity is cold
But, after, the raw material in sprue gate also can cool down therewith, and in sprue gate cooling raw material will be moulded in product together with,
Watering formation casting waste materials on the product outpoured, product needs workman to be cut by the waste material that sprue gate produces after being removed from the molds
Come, operate the most loaded down with trivial details so that waste time and energy during production.
Utility model content
The deficiency that exists for prior art, the purpose of this utility model is to provide a kind of cast gate waste material that automatically removes
Injection mold, the waste material at sprue gate just excises by this mould when producing product, it is to avoid the loaded down with trivial details behaviour that the later stage manually excises
Make so that produce during product the quickest.
Above-mentioned technical purpose of the present utility model has the technical scheme that one automatically removes cast gate
The injection mold of waste material, cooperatively forms die cavity including upper mold and lower mold, upper mold and the lower mold for injecting products, upper mold connects
There is cope match-plate pattern, described cope match-plate pattern is provided with sprue gate, sprue gate is provided with multiple runner connected with die cavity, described runner
Including quiet flow channel section and dynamic flow channel section, described dynamic flow channel section is cylindric, and described dynamic flow channel section is rotatably installed in quiet flow channel section,
Described upper mold is provided with the drive mechanism for driving dynamic flow channel section to rotate, described stationary stream road is provided with for dynamic
The air flue that the runner of flow channel section communicates, one end of described dynamic flow channel section is positioned in die cavity.
By technique scheme, when being molded, by drive mechanism, dynamic flow channel section is rotated, at this moment, dynamic
Form bigger shearing force between flow channel section meeting and the product of injection mo(u)lding, can will be moulded in product together with sprue gate waste material
Excision, owing to the product being molded by firmly is pressed between upper mold and lower mold, so product is not when dynamic flow channel section rotates
The most damaged;When dynamic flow channel section rotates to when being excised by sprue gate waste material, and upper mold and lower mold separately carry out the demoulding, and the demoulding completes it
After, the runner in dynamic flow channel section will align with air flue, at this moment give in air flue and be passed through gases at high pressure, and gases at high pressure will be dynamic flow channel section
In shear with product in the sprue gate of the disconnected driven flow channel section of sprue gate waste material and blow out, then, drive mechanism has and is flowed in drivings east
Road section is turned round so that the runner in quiet flow channel section and the flow passage in dynamic flow channel section, and convenient cast next time produces;Pass through
When this mould produces, production efficiency is high, saves the labour cost being largely used to the sprue gate waste material that excision is connected with product, simultaneously
Also save the plenty of time.
Preferably, described dynamic flow channel section is provided with driving cog away from die cavity end, and described drive mechanism includes nibbling with driving cog
Close gear and fix the rotating shaft being connected with gear, described rotating shaft is connected with motor.
By technique scheme, owing to when the sprue gate waste material excision being connected with product, needs apply bigger
Power, so arranging driving cog in dynamic flow channel section, drives the gear coordinated with driving cog to drive dynamic flow channel section to send out by motor
Raw rotation, and then sprue gate waste material is excised, bigger power can be transmitted owing to gear coordinates, so can be very by gear engagement
Easily and fast sprue gate waste material is excised.
Preferably, the rounded distribution of described runner, the circle centre position surrounded at multiple runners is provided with for installing dynamic stream
The rotary shaft of road section, described quiet flow channel section is provided with spacing preiection, described dynamic flow channel section is provided with for limiting dynamic runner
Runner in section turns to the stopper slot of air flue.
By technique scheme, due to dynamic flow channel section rotate sprue gate waste material is excised time, need bigger power,
So in order to anti-stop flow channel section makes to misplace in rotation, needing to arrange rotary shaft in quiet flow channel section, being limited by rotary shaft
Braking flow channel section so that dynamic flow channel section can rotate and recover accurately;In order to anti-stop flow channel section rotates when rotating
Excessively make the runner in dynamic flow channel section can not align with air flue, need to set spacing preiection in quiet flow channel section, simultaneously at dynamic stream
It is provided with the stopper slot coordinated with spacing preiection in road section, conflicts can conveniently control by the cell wall of spacing preiection with stopper slot
The anglec of rotation of dynamic flow channel section, is also convenient for air flue simultaneously and aligns with the runner in dynamic flow channel section so that the gas in air flue is convenient
Waste material in dynamic flow channel section is blown out.
Preferably, described rotating shaft is perpendicular to the axle center of dynamic flow channel section, and described gear is bevel gear.
By technique scheme, in order to not hinder the normal work at sprue gate, need driving motor is arranged on upper mold
Sidewall, by being arranged to be mutually perpendicular to by the axle center of rotating shaft with dynamic flow channel section, so that rotating shaft is stretched out from the sidewall of upper mold,
It is arranged to bevel gear further through by gear, so that the moment of torsion on motor is delivered to the dynamic runner vertical with machine shaft simultaneously
Duan Shang;When producing, motor does not interferes with the normal work of other parts of mould, and motor-driven moment of torsion transmission efficiency is high simultaneously,
Efficient work.
Preferably, described spacing preiection is provided with the contact switch for controlling to be passed through gases at high pressure to air flue.
By technique scheme, so that be automatically passed through gas in air flue during work, spacing preiection is arranged
There is contact switch;When injection mo(u)lding, after the product in die cavity cools down molding, dynamic for driving flow channel section is rotated by motor,
Along with the continuous rotation of dynamic flow channel section, be moulded in product together with sprue gate waste material will be cut-off, carry out the demoulding afterwards, air flue
Gradually will align with the runner in dynamic flow channel section, until after air flue aligns with the runner in dynamic flow channel section, contact switch will be touched
Dynamic, at this moment can be passed through gases at high pressure in air flue, high pressure gas knows from experience the driven stream of sprue gate waste material that will be breaking in dynamic flow channel section
Runner in road section blows out, completes the work of the demoulding and excision waste material simultaneously;When the runner in the driven flow channel section of waste material blows
After going out, dynamic for driving flow channel section is turned round by motor so that air flue separates with the runner in dynamic flow channel section, and at this moment spacing preiection will
Do not contact with spacing cell wall so that the gas in air flue stops being passed through;Along with the continuous revolution of dynamic flow channel section, in dynamic flow channel section
Runner and the runner conducting in quiet flow channel section, convenient injection mo(u)lding next time, whole processing efficient is quick, and automaticity is high, joint
Save a large amount of manpower and materials.
Preferably, described dynamic flow channel section is provided with driving cog away from die cavity end, and described drive mechanism includes nibbling with driving cog
The tooth bar closed and the cylinder being connected with tooth bar, described tooth bar is slidably arranged in described upper mold.
By technique scheme, so that dynamic flow channel section rotates, dynamic flow channel section is provided with driving cog, logical
Cross and the tooth bar that engage with driving cog is set eastern flow channel section just can be driven easily to rotate, it is required that move flow channel section generation
Rotation makes, and pulls tooth bar by cylinder so that gear is moved, and dynamic flow channel section so will be made to rotate, when pouring into a mould
After mouth waste material excises and completes demoulding work, need to rotate in situ, by being pushed to by tooth bar dynamic flow channel section with cylinder
In situ, it is possible to dynamic flow channel section is set back, convenient next injection molding, whole process automaticity is high, operation height
Effect, can save substantial amounts of manpower and materials.
Preferably, described tooth bar is provided with the prominent slide block with rack surface, is provided with for slide block sliding in described upper mold
Dynamic chute.
By technique scheme, cut together with the sprue gate waste material that the rotation of dynamic flow channel section makes needs will be connected with product
Removing, therefore, the active force on tooth bar is relatively big, and tooth bar easily rocks at work, so that tooth bar is operationally difficult to shake
Dynamic, on tooth bar, therefore it is provided with slide block, in upper mold, is provided with chute, by making slide block slide back and forth in chute simultaneously
Dynamic, carry out the movement locus of limiting gear so that stably firm during rack work, be not susceptible to rock.
In sum, this utility model in contrast to the having the beneficial effect that by runner is divided into dynamic flow channel section of prior art
With quiet flow channel section, dynamic flow channel section can be made after injection completes to relatively rotate with quiet flow channel section, can be by product surface
The excision of sprue gate waste material, efficient work is quick, and automaticity is high, saves a large amount of manpower and materials.
Accompanying drawing explanation
Fig. 1 is the structural representation of the mould in background technology;
Fig. 2 be embodiment one partly cut open structural representation, the internal structure of main prominent dynamic flow channel section and quiet flow channel section;
Fig. 3 is the structural representation of embodiment one, main prominent dynamic flow channel section and the fit structure of quiet flow channel section;
Fig. 4 is the zoomed-in view in Fig. 2 at A;
Fig. 5 is dynamic flow channel section and the structural representation of quiet flow channel section in embodiment one;
Fig. 6 is the structural representation of embodiment two.
Reference: 1, upper mold;2, lower mold;3, die cavity;4, cope match-plate pattern;5, sprue gate;6, dynamic flow channel section;7, stationary stream road
Section;8, runner;9, pore;10, driving cog;11, gear, 12, motor;13, rotary shaft;14, spacing preiection;15, stopper slot;
16, contact switch;17, tooth bar;18, cylinder;19, slide block;20, chute.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but
As long as all being protected by Patent Law in right of the present utility model.
Embodiment one:
As in figure 2 it is shown, a kind of injection mold automatically removing cast gate waste material, including for injecting products upper mold 1 with under
Mould 2, upper mold 1 and lower mold 2 cooperatively form die cavity 3, and upper mold 1 connects cope match-plate pattern 4, cope match-plate pattern 4 is provided with sprue gate 5, waters
Being provided with three runners 8 connected with die cavity 3 on geat 5, runner 8 is divided into two parts, a part to be the stationary stream near cope match-plate pattern 4
Road section 7, another part is the dynamic flow channel section 6 that one end is positioned in die cavity 3, and dynamic flow channel section 6 is cylindric, and dynamic flow channel section 6 can moving
The axial-rotation of flow channel section 6, is provided with air flue in quiet flow channel section 7, when dynamic flow channel section 6 rotates the runner 8 to dynamic flow channel section 6
When not connecting with the runner 8 in quiet flow channel section 7, air flue can turn on the runner 8 in dynamic flow channel section 6, in dynamic flow channel section 6
Being provided with the motor 12 for driving dynamic flow channel section 6 to rotate, motor 12 is arranged in upper mold 1, and the rotating shaft of motor 12 is stretched into
Upper mold 1 is internal and connects in its end that to have gear 11, gear 11 be bevel gear 11, and the rotating shaft of motor 12 and dynamic flow channel section 6
Rotating shaft is mutually perpendicular to, and is provided with the driving cog 10 coordinated with gear 11 in dynamic flow channel section 6, and driving cog 10 is arranged on dynamic flow channel section
6 away from die cavity 3 end.
As it is shown in figure 5, wherein, straight down and 3 runners 8 are positioned on the circumference of a circle, in stationary stream road 3 runners 8
The circle centre position formed by runner 8 in section 7 is provided with rotating shaft, and dynamic flow channel section 6 press shape in this rotating shaft, and moving flow channel section 6 can be around this
Rotating shaft is freely rotatable.
As it is shown on figure 3, the outer ring, one end with the laminating of quiet flow channel section 7 is provided with stopper slot 15, stopper slot in dynamic flow channel section 6
The outer ring of 15 moving flow channel section 6 is arranged, and its cross section is half arc;Quiet flow channel section 7 is provided with and is fitted in stopper slot 15
Spacing preiection 14, when spacing preiection 14 is positioned at the initiating terminal of stopper slot 15, quiet flow channel section 7 upper runner 8 will with in dynamic flow channel section 6
Runner 8 fully on, when spacing preiection 14 is positioned at the clearing end of stopper slot 15, air flue by with the runner 8 in dynamic flow channel section 6
Conducting.
As shown in Figure 4, being provided with contact switch 16 on spacing preiection 14, spacing preiection 14 slides in stopper slot 15
During the clearing end of stopper slot 15, contact switch 16 will contact with the cell wall of stopper slot 15, at this moment will trigger contact switch 16 so that
Being passed through gases at high pressure in air flue, when being positioned at the clearing end of stopper slot 15 due to spacing preiection 14, the runner 8 in dynamic flow channel section 6 will
Turn on air flue, so, gases at high pressure will be the sprue gate 5 waste material blowout in runner 8.
During work, the plastics of molten condition enter runner 8 by sprue gate 5, and are full of by die cavity 3, afterwards, and die cavity by the time
After product cooling in 3, motor 12 is rotated, drive gear 11 to rotate with motor 12, so by gear 11 and driving cog 10
Cooperation dynamic flow channel section 6 will be made to rotate, at this moment owing to sprue gate 5 waste material is together with being moulded between product, thus with
The rotation of flow channel section 6, sprue gate 5 waste material will separate with product, carry out the demoulding afterwards, the stream during demoulding, in dynamic flow channel section 6
Road 8 will rotate into and turns on air flue, and at this moment, contact switch 16 will be touched so that is passed through gases at high pressure, gases at high pressure in air flue
By the sprue gate 5 waste material blowout in runner 8, by motor 12, dynamic flow channel section 6 is turned round afterwards so that dynamic flow channel section
Runner 8 on 6 turns on quiet flow channel section 7 upper runner 8, is conveniently molded next time.
Embodiment two:
As shown in Figure 6, a kind of injection mold automatically removing cast gate waste material, the difference with embodiment one is, at dynamic runner
Section 6 is provided with driving cog 10 away from die cavity 3 end, is provided with cylinder 18 in upper mold 1 simultaneously, and upper mold 1 is stretched in one end of cylinder 18
It is linear that interior and connection has tooth bar 17, tooth bar 17, and tooth bar 17 engages with driving cog 10, pulls tooth bar by cylinder 18 piston rod
17 just can be coordinated with driving cog 10 by the tooth on tooth bar 17, allow flow channel section 6 rotate, by controlling cylinder 18 piston
The elongation of bar or contracted length just can control the anglec of rotation of dynamic flow channel section 6 easily.
Wherein, it is provided with slide block 19 in the upper and lower end face of tooth bar 17, is provided with in upper mold 1 for slide block 19 slip simultaneously
Chute 20, during work, slide block 19 sticks in chute 20, it is possible to achieve the linear motion of tooth bar 17.
Pull tooth bar 17 by the piston rod of cylinder 18, the dynamic stream engaged with tooth bar 17 when tooth bar 17 moves along a straight line, will be made
Road section 6 rotates, afterwards, can will be moulded in product together with the excision of sprue gate 5 waste material, simple to operate quickly.
The above is only exemplary embodiment of the present utility model, not for limiting protection model of the present utility model
Enclosing, protection domain of the present utility model is determined by appended claim.