CN104960158B - A kind of easy half_split block mould structure for ensureing plastic concentricity - Google Patents
A kind of easy half_split block mould structure for ensureing plastic concentricity Download PDFInfo
- Publication number
- CN104960158B CN104960158B CN201510316895.4A CN201510316895A CN104960158B CN 104960158 B CN104960158 B CN 104960158B CN 201510316895 A CN201510316895 A CN 201510316895A CN 104960158 B CN104960158 B CN 104960158B
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- mold insert
- mandril
- plate
- die structure
- actor
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- 239000003292 glue Substances 0.000 claims abstract description 26
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 238000009877 rendering Methods 0.000 claims description 25
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 15
- 238000002347 injection Methods 0.000 abstract description 11
- 239000007924 injection Substances 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000001746 injection moulding Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
- B29C2045/0027—Gate or gate mark locations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/36—Moulds having means for locating or centering cores
- B29C2045/363—Moulds having means for locating or centering cores using a movable core or core part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C2045/4063—Removing or ejecting moulded articles preventing damage to articles caused by the ejector
Abstract
The invention discloses a kind of easy half_split block mould structures for ensureing plastic concentricity, include lower die structure, upper die structure is equipped on lower die structure, the upper mold insert with glue feeding opening is equipped on the bottom surface of the cope plate of the bottom of upper die structure, lower mold insert is equipped on the upper surface of the lower template at the top of lower die structure, glue runner of the glue feeding opening through being located on upper mold insert and/or lower mold insert is connected with the forming recess that upper mold insert and lower mold insert are equipped with, when upper, when lower die structure overlaps, forming recess on upper mold insert and lower mold insert combines composition complete molding cavities, the cavity is vertical with die sinking direction.The mould structure uses horizontal form, and injection pressure and speed are smaller, and core is not easy to be rushed curved, and concentricity is good, need not frequently replace core, shortens the production and processing cycle of plastic part.
Description
Technical field
The present invention relates to a kind of half_split block mould structure, particularly a kind of easy half_split block mold knot for ensureing plastic concentricity
Structure.
Background technology
The shaping of coil rack class plastic part is typically all to be shaped using half_split block cavity, and shaped structure is typically all to adopt
With vertical shaping, i.e. the cavity mould structure consistent with molding direction, the mould structure of the type, during into glue, molten plastic is not
Need only to the cavity filling towards lower die direction, at the same need the cavity filling towards upper mold direction, it is necessary to injection pressure and speed
Spend it is larger, when plastic endoporus is smaller, shape endoporus core easily by into glue when rush it is curved so that the plastic endoporus phase of the type
For plastic shape, concentricity is bad, is not easy to ensure the endoporus of the type plastic compared with the concentricity of plastic shape, together
When core rush it is curved cannot meet requirement when, it is necessary to frequently replace core, then also affect the delivery time of part.
Using vertical molding mould structure, required pressure and speed are the 90% of maximum, and the plastic produced is same
Axis degree is only 0.1-0.14mm, and 10000 plastic parts of production just need replacing a core, and replacing a core then needs
The time of at least 2 days or more greatly extends the production and processing cycle of plastic part.
The content of the invention
It is an object of the present invention to provide a kind of easy half_split block mould structures for ensureing plastic concentricity.The mould structure
Using horizontal form, injection pressure and speed are smaller, and core is not easy to be rushed curved, and concentricity is good, need not frequently replace core, contracting
The short production and processing cycle of plastic part.
Technical scheme：A kind of easy half_split block mould structure for ensureing plastic concentricity, includes lower die and signs an undertaking
Structure, on lower die structure be equipped with upper die structure, on the bottom surface of the cope plate of the bottom of upper die structure be equipped with carry into
The upper mold insert in glue hole is equipped with lower mold insert on the upper surface of the lower template at the top of lower die structure, and glue feeding opening is through being located at upper edge
Glue runner on part and/or lower mold insert is connected with the forming recess that upper mold insert and lower mold insert are equipped with, when upper and lower mould structure weight
During conjunction, the forming recess on upper mold insert and lower mold insert combines composition complete molding cavities, and the cavity is vertical with die sinking direction.
The foregoing easy half_split block mould structure for ensureing plastic concentricity, the upper mold insert, which includes, is located at cope plate bottom surface
On the first mold insert, beside the first mold insert be equipped with the second mold insert；The lower mold insert, which includes, to be located on the upper surface of lower template
The 3rd mold insert, the side of the 3rd mold insert is equipped with the 4th mold insert, and forming recess is separately positioned on the second mold insert and the 4th mold insert.
The foregoing easy half_split block mould structure for ensureing plastic concentricity, the lower die structure, which includes to be equipped with, penetrates hole
Pedestal, the top of pedestal is equipped with mandril backing plate, and mandril backing plate both sides are equipped with stent, and mandril backing plate is equipped with mandril fixed plate,
Stent is equipped with lower bolster, and there are gap between lower bolster and mandril fixed plate, lower bolster is equipped with lower template, in lower template
Between be equipped with the 3rd mold insert, be the 4th mold insert that hole is penetrated equipped with core beside the 3rd mold insert, set at the forming recess of the 4th mold insert
It is jagged, core is equipped with beside the 4th mold insert, core is connected with sliding block, and sliding block is put into hole equipped with inclined guide pillar, slips end
Lower template is put into chamber, push back pin an actor's rendering of an operatic tune, mandril an actor's rendering of an operatic tune and guide post row equipped with pit, lower bolster and lower template equipped with inclined guide pillar
Chamber, the notch of the 4th mold insert of mandril an actor's rendering of an operatic tune head end face, push back pin one end are fixed in mandril fixed plate, and shaft penetrates backhaul
In bar an actor's rendering of an operatic tune, push back pin penetrates and retracting spring has been inserted on the shaft of lower bolster, and mandril one end is fixed on mandril fixed plate, bar
Body head end is penetrated to indentation, there.
The foregoing easy half_split block mould structure for ensureing plastic concentricity, the upper die structure include equipped with injecting hole
Upper padding plate, upper padding plate bottom surface be equipped with cope plate, the inclined guide pillar and guide post through cope plate, upper mold are additionally provided in upper padding plate bottom surface
Plate bottom surface is equipped with the first mold insert, the injecting hole of the glue feeding opening face upper padding plate of the first mold insert.
The foregoing easy half_split block mould structure for ensureing plastic concentricity, the core are connected through plug screw with sliding block.
The foregoing easy half_split block mould structure for ensureing plastic concentricity, the centre of the 3rd mold insert are equipped with through hole, under
Sprue puller an actor's rendering of an operatic tune is additionally provided in backing plate and lower template, sprue puller an actor's rendering of an operatic tune head end corresponds to through hole, sprue puller is equipped in sprue puller an actor's rendering of an operatic tune,
Sprue puller head end is located at through hole.
The foregoing easy half_split block mould structure for ensureing plastic concentricity, the sliding block both sides are respectively provided with 1 piece of press strip.
The foregoing easy half_split block mould structure for ensureing plastic concentricity, is equipped with rubbish between the pedestal and mandril backing plate
Nail.
The foregoing easy half_split block mould structure for ensureing plastic concentricity, is set flexible between the sliding block and lower template
Ball.
The foregoing easy half_split block mould structure for ensureing plastic concentricity, the upper padding plate bottom surface is additionally provided with through upper mold
Plate is tiltedly carved.
Beneficial effects of the present invention：Compared with prior art, the present invention is equipped on upper and lower mould structure with being molded direction
Vertical cavity, then when into glue, molten plastic is arranged on from the injecting hole injection on upper die structure, then horizontal flow into
In glue runner on mold insert, in the forming recess that last Injection Level is set, only need in the horizontal plane it be filled i.e. in whole process
Can, so that the injection pressure and speed that need are reduced to 70%-the 75% of maximum, pressure and speed reduce, and are just not easy
Core is rushed it is curved, thus easily ensure the type plastic concentricity, concentricity≤0.04mm of the plastic part processed, together
When easily shape, core is not easy to be rushed curved, and the mold that the plastic part of 100,000 or more has been machined in actual production process shows mesh
It is preceding again without replace core, so as to highly shortened the production cycle of plastic part, preferably ensure that the production of part
Delivery time.During use of the present invention, by the way that mandril backing plate is promoted to move up after the completion of injection, mandril is driven to move up, is pushed up
Plastic part ejection cavity is realized the demoulding by bar；After the completion of the demoulding under the action of retracting spring, mandril backing plate drives mandril to reply
To initial position；It is provided with and tiltedly carves and can by inclined guide pillar and tiltedly carve reality to avoid microdisplacement occurs in sliding block injection moulding process
The Dual positioning of existing sliding block, so as to ensure the position of core；By adjusting plug screw, consequently facilitating adjusting core stretches out length, from
And realize the molding structure of adjustment plastic part；Sprue puller head end is contacted with the bottom of plastic part in injection moulding process, avoids a point mould mistake
Plastic part follows upper die structure to move upwardly together in journey, so as to which plastic part be broken；The positioning of sliding block is realized by press strip
Adjustment effect, so as to ensure the quality of final plastic piece shaping；It is provided with rubbish to order, mandril backing plate is upward during avoiding die sinking
Mobile rear impurity is fallen between pedestal and mandril backing plate, causes out-of-flatness between contact surface after molding；It is real by upper and lower screw
Now entire upper and lower mould structure is separately fixed at together.
Description of the drawings
Accompanying drawing 1 is the structural representation of the present invention；
Attached drawing 2 is the overlooking the structure diagram of lower die structure；
Attached drawing 3 is the present invention looks up structural representation of upper die structure；
Attached drawing 4 is the side structure schematic diagram of attached drawing 1；
Attached drawing 5 is the sectional view of the B-B of attached drawing 2；
Attached drawing 6 is the structure diagram of mandril；
Attached drawing 7 is the structure diagram of the 4th mold insert；
Reference numeral：1- pedestals, 2- rubbish nail, 3- mandril backing plates, 4- mandril fixed plates, 5- push back pins, 6- backhaul bullets
Spring, 7- lower bolsters, 8- lower templates, 9- cope plates, 10- are tiltedly carved, 11- upper padding plates, 12- inclined guide pillars, 13- sliding blocks, 14- plug screws,
15- cores, 16- guide posts, 17- screwings, screw under 18-, 19- mandrils, 20- penetrate hole, the first mold inserts of 21-, and 22- second is inlayed
Part, the 3rd mold inserts of 23-, the 4th mold inserts of 24-, 25- glue runners, 26- forming recess, 27- glue feeding openings, 28- through holes, 29- press strips,
30- sprue pullers, 31- stents, 32- resilient balls, 33- notches.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
The embodiment of the present invention：A kind of easy half_split block mould structure for ensureing plastic concentricity, as shown in attached drawing 1-7, bag
Lower die structure has been included, upper die structure has been equipped on lower die structure, in the bottom surface of the cope plate 9 of the bottom of upper die structure
The upper mold insert with glue feeding opening 27 is equipped with, lower mold insert is equipped on the upper surface of the lower template 8 at the top of lower die structure, into
The forming recess 26 that glue runner 25 of the glue hole 27 through being located on upper mold insert and/or lower mold insert is equipped with upper mold insert and lower mold insert
Connection, when upper and lower mould structure overlaps, the forming recess 26 on upper mold insert and lower mold insert, which is combined, forms complete type
Chamber, the cavity are vertical with die sinking direction.
The mold is in use, mold is mounted on injection molding machine, note of the molten plastic through being set on mold in injection moulding process
Mole is flowed into glue feeding opening 27, then is flowed into forming recess 26 and be molded by glue runner 25 from glue feeding opening 27, is obtained final
Plastic.
The upper mold insert includes the first mold insert 21 being located on 9 bottom surface of cope plate, each in 21 side both sides of the first mold insert
Equipped with 1 the second mold insert 22；The lower mold insert includes the 3rd mold insert 23 being located on the upper surface of lower template 8, the 3rd mold insert
23 side both sides are respectively provided with the 4th mold insert 24 of 1 U type structure, and forming recess 26 is separately positioned on the second mold insert 22 and
On four mold inserts 24.First mold insert 21 is corresponding with 23 position of the 3rd mold insert, and the second mold insert 22 is corresponding with 24 position of the 4th mold insert.When
During upper and lower mold clamping, the second mold insert 22 is caught in the 4th mold insert 24 of U-shaped structure, by the 4th mold insert 24 to the second mold insert
22 realize positioning, ensure that molding aftershaping cavity 26 will not misplace, obtained plastic part is finally processed so as to ensure that
Quality.
The lower die structure includes equipped with the pedestal 1 for penetrating hole 20, and the top of pedestal 1 is equipped with mandril backing plate 3, mandril
3 both sides of backing plate are respectively provided with 1 stent 31, and mandril backing plate 3 is equipped with mandril fixed plate 4, and stent 31 is equipped with lower bolster 7, underlay
There are certain mobile spaces, lower bolster 7 between plate 7 and mandril fixed plate 4 to be equipped with lower template 8, and the centre of lower template 8 is set
There is the 3rd mold insert 23,23 side of the 3rd mold insert is the 4th mold insert 24 that hole is penetrated equipped with core, the forming recess of the 4th mold insert 24
Notch 33 is equipped at 26,24 side of the 4th mold insert is equipped with core 15, and core 15 is connected with sliding block 13, and sliding block 13 is equipped with inclined guide pillar
Hole is put into, the lower template 8 of 13 end of sliding block is equipped with pit, and lower bolster 7 and lower template 8 are put into chamber, backhaul equipped with inclined guide pillar
Bar an actor's rendering of an operatic tune, mandril an actor's rendering of an operatic tune and guide post an actor's rendering of an operatic tune, the notch 33 of 2 mandril an actor's rendering of an operatic tune head end difference 1 the 4th mold inserts 24 of face, push back pin
5 one end are fixed in mandril fixed plate 4, and shaft is penetrated in push back pin an actor's rendering of an operatic tune, and push back pin 5, which is penetrated on the shaft of lower bolster 7, to be covered
Enter to have retracting spring 6,19 one end of mandril is fixed on mandril fixed plate 4, and shaft is penetrated in mandril an actor's rendering of an operatic tune, and head end is U-shaped knot
Structure, identical with the U-shaped structure of forming recess 26, the head end of mandril 19 is stretched at notch 33 at forming recess 26.Pedestal 1,
Stent 31, lower bolster 7 and lower template 8 are fixed together by lower screw 18.
And the upper die structure includes the upper padding plate 11 equipped with injecting hole, and 11 bottom surface of upper padding plate is equipped with cope plate 9, and two
It is fixed, is additionally provided in 11 bottom surface of upper padding plate through the inclined guide pillar 12 of cope plate 9 and guide post 16 by screwing 17 between person,
9 bottom surface of cope plate is equipped with the first mold insert 21, the injecting hole of the 27 face upper padding plate 11 of glue feeding opening of the first mold insert 21.
The mold is in use, lower die structure is fixed on the lower part of injection molding machine, and upper die structure is fixed on injection molding machine
In the moving mechanism of top.The top moving mechanism of injection molding machine drives upper die structure to move down, and passes through guide post in moving process
16 carry out positioning movement.During 12 oblique stretching of inclined guide pillar, can inwards it be moved with movable slider 13, core 15 is inlayed through the 4th
It after core on part 24 penetrates hole, stretches in forming recess 26, while upper and lower mould structure fits together completion entirely
Clamping process, the forming recess 26 of 26 and the 4th mold insert 24 of forming recess of the second mold insert 22, which is combined, forms complete type
Chamber.Since the injecting hole on upper padding plate 11 is connected with injection molded tube, in molten plastic injection injecting hole, the first mold insert is then flowed into
It in 21 glue feeding opening 27, is flowed into using glue runner 25 in forming recess 26, molten plastic cooling aftershaping.Then divided
Die worker makees, top moving mechanism drive upper die structure uplink, and inclined guide pillar 12 is displaced outwardly with movable slider 13 during uplink, from
And core 15 is caused to exit forming recess 26.Then the ejecting mechanism action of injection molding machine lower part, ejects and upwards from pedestal 1
It penetrates hole 20 to penetrate, act on the bottom surface of mandril backing plate 3, promote mandril backing plate 3 and mandril fixed plate 4 together in mobile space
It inside moves up, so that mandril 19 moves up in mandril an actor's rendering of an operatic tune, the head end of final mandril 19 can be from mandril an actor's rendering of an operatic tune pair
It ejects, acts on the bottom of molding plastic part, by plastic part from forming recess 26 at the notch 33 for the 4th mold insert 24 answered
Ejection, then worker is taken away plastic part using instrument.During mandril backing plate 3 moves up, 4 meeting of mandril fixed plate
Retracting spring 6 is compressed, after plastic part is taken away, ejecting mechanism is withdrawn downwards, and retracting spring 6 recovers original shape,
Mandril fixed plate 4 and mandril backing plate 3 are pushed up into back downwards initial position under the action of spring-return power, preparation molds next time.
The core 15 is connected through plug screw 14 with sliding block 13, and the length that core 15 is stretched in forming recess 26 can pass through
Plug screw 14 is adjusted to be adjusted.
The centre of 3rd mold insert 23 is equipped with through hole 28, and sprue puller an actor's rendering of an operatic tune is additionally provided in lower bolster 7 and lower template 8, draws
Material bar an actor's rendering of an operatic tune head end corresponds to through hole 28, is equipped with sprue puller 30 in sprue puller an actor's rendering of an operatic tune, 30 head end of sprue puller is located at through hole 28.Injection
The head end of the sprue puller 30 is located at 28 bottom of through hole of the 3rd mold insert 23 in the process, during plastic piece shaping, sprue puller 30
End with together with the plastic bonding of melting, can be to avoid upper die structure uplink when dividing mould during, upper die structure band
It moves molding plastic part to move upwardly together, plastic part is avoided to be drawn bad.
13 both sides of sliding block are respectively provided with 1 piece of press strip 29, form slider track between two press strips 29, sliding block 13 is played
One guiding role ensures the precision of sliding block movement, so as to ensure finally to process the precision of obtained plastic part.
Other impurity, which will be might have, between pedestal 1 and mandril backing plate 3 there are gap, in ejection process falls to this
In gap, when mandril backing plate 3 returns to initial position, it is possible to cause 3 run-off the straight of mandril backing plate, so that mandril 19 is sent out
Raw deflection.Rubbish is equipped between pedestal 1 and mandril backing plate 3 therefore and follows closely 2, rubbish nail 2 withstands mandril backing plate 3 upwards so that top
There are gap between bar backing plate 3 and pedestal 1, mandril backing plate 3 will not be impacted when impurity falls to 1 surface of pedestal.
Resilient balls 32 are provided between the sliding block 13 and lower template 8 so that in 12 motion process of inclined guide pillar, more
Easily band movable slider 13 moves, so as to ensure core 15 in place.
11 bottom surface of upper padding plate is additionally provided with through cope plate 9 and tiltedly carves 10, after the completion of molding, tiltedly carves 10 and props up sliding block
13 tail end avoids core 15 in injection moulding process that the effect of injection pressure is subject to retract backward, so as to influence injection molding
Quality.
Claims (1)
1. a kind of easy half_split block mould structure for ensureing plastic concentricity, it is characterised in that：Include lower die structure, in lower die
Lamps structure is equipped with upper die structure, the cope plate in the bottom of upper die structure（9）Bottom surface be equipped with glue feeding opening
（27）Upper mold insert, the lower template at the top of lower die structure（8）Upper surface be equipped with lower mold insert, glue feeding opening（27）Through setting
Glue runner on upper mold insert and/or lower mold insert（25）The forming recess being equipped with upper mold insert and lower mold insert（26）Connection, when
When upper and lower mould structure overlaps, the forming recess on upper mold insert and lower mold insert（26）Composition complete molding cavities are combined, the type
Chamber is vertical with die sinking direction；The upper mold insert, which includes, is located at cope plate（9）The first mold insert on bottom surface（21）, in the first mold insert
（21）Side is equipped with the second mold insert（22）；The lower mold insert, which includes, is located at lower template（8）Upper surface on the 3rd mold insert
（23）, the 3rd mold insert（23）Side be equipped with the 4th mold insert（24）, forming recess（26）It is separately positioned on the second mold insert（22）With
4th mold insert（24）On；
The lower die structure, which includes to be equipped with, penetrates hole（20）Pedestal（1）, pedestal（1）Top be equipped with mandril backing plate（3）,
Mandril backing plate（3）Both sides are equipped with stent（31）, mandril backing plate（3）It is equipped with mandril fixed plate（4）, stent（31）It is equipped with underlay
Plate（7）, lower bolster（7）With mandril fixed plate（4）Between there are gap, lower bolsters（7）It is equipped with lower template（8）, lower template（8）
Centre be equipped with the 3rd mold insert（23）, the 3rd mold insert（23）Side is the 4th mold insert that hole is penetrated equipped with core（24）, the 4th edge
Part（24）Forming recess（26）Place is equipped with notch（33）, the 4th mold insert（24）Side is equipped with core（15）, core（15）With cunning
Block（13）Connection, sliding block（13）Hole, sliding block are put into equipped with inclined guide pillar（13）The lower template of end（8）It is equipped with pit, underlay
Plate（7）And lower template（8）Chamber, push back pin an actor's rendering of an operatic tune, mandril an actor's rendering of an operatic tune and guide post an actor's rendering of an operatic tune, mandril an actor's rendering of an operatic tune head end are put into equipped with inclined guide pillar
The 4th mold insert of face（24）Notch（33）, push back pin（5）One end is fixed on mandril fixed plate（4）On, shaft penetrates backhaul
In bar an actor's rendering of an operatic tune, push back pin（5）Penetrate lower bolster（7）Shaft on be inserted in retracting spring（6）, mandril（19）One end is fixed on top
Bar fixed plate（4）, shaft head end penetrated to notch（33）Place；
3rd mold insert（23）Centre be equipped with through hole（28）, lower bolster（7）And lower template（8）In be additionally provided with sprue puller row
Chamber, sprue puller an actor's rendering of an operatic tune head end correspond to through hole（28）, sprue puller is equipped in sprue puller an actor's rendering of an operatic tune（30）, sprue puller（30）Head end is located at logical
Hole（28）Place；
The sliding block（13）Both sides are respectively provided with 1 piece of press strip（29）；
The sliding block（13）With lower template（8）Between be provided with resilient balls（32）；
The core（15）Through plug screw（14）With sliding block（13）Connection；
The pedestal（1）With mandril backing plate（3）Between be equipped with rubbish follow closely（2）；
The upper die structure includes the upper padding plate equipped with injecting hole（11）, upper padding plate（11）Bottom surface is equipped with cope plate（9）,
Upper padding plate（11）Bottom surface is additionally provided with through cope plate（9）Inclined guide pillar（12）And guide post（16）, cope plate（9）Bottom surface is equipped with the
One mold insert（21）, the first mold insert（21）Glue feeding opening（27）Face upper padding plate（11）Injecting hole；
The upper padding plate（11）Bottom surface is additionally provided with through cope plate（9）Tiltedly carve（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316895.4A CN104960158B (en) | 2015-06-11 | 2015-06-11 | A kind of easy half_split block mould structure for ensureing plastic concentricity |
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| CN201510316895.4A CN104960158B (en) | 2015-06-11 | 2015-06-11 | A kind of easy half_split block mould structure for ensureing plastic concentricity |
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| CN104960158B true CN104960158B (en) | 2018-06-05 |
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| CN117359883B (en) * | 2023-12-05 | 2024-03-12 | 天津汇友连众精密模具股份有限公司 | Gear shaft injection mold |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4751037A (en) * | 1986-03-21 | 1988-06-14 | Daniel Faneuf | Injection molding process with movable mold core and injection nozzle assembly |
| CN201350679Y (en) * | 2009-02-12 | 2009-11-25 | 宁波南方塑料模具有限公司 | Shaft sleeve die |
| CN104227982A (en) * | 2014-09-25 | 2014-12-24 | 昆山伯建精密模具有限公司 | Injection mold |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7794223B2 (en) * | 2007-09-20 | 2010-09-14 | Kuo Fei-Pin | Tri-plate injection die with changeable male and female die cores |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4751037A (en) * | 1986-03-21 | 1988-06-14 | Daniel Faneuf | Injection molding process with movable mold core and injection nozzle assembly |
| CN201350679Y (en) * | 2009-02-12 | 2009-11-25 | 宁波南方塑料模具有限公司 | Shaft sleeve die |
| CN104227982A (en) * | 2014-09-25 | 2014-12-24 | 昆山伯建精密模具有限公司 | Injection mold |
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