CN107214916A - Avoid producing the mould of weld mark during injection - Google Patents
Avoid producing the mould of weld mark during injection Download PDFInfo
- Publication number
- CN107214916A CN107214916A CN201710526490.2A CN201710526490A CN107214916A CN 107214916 A CN107214916 A CN 107214916A CN 201710526490 A CN201710526490 A CN 201710526490A CN 107214916 A CN107214916 A CN 107214916A
- Authority
- CN
- China
- Prior art keywords
- mould
- pod apertures
- rear mold
- kerve
- inverted draw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000002347 injection Methods 0.000 title claims abstract description 27
- 239000007924 injection Substances 0.000 title claims abstract description 27
- 239000003292 glue Substances 0.000 claims abstract description 91
- 239000000463 material Substances 0.000 claims description 21
- 230000000903 blocking effect Effects 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000000155 melt Substances 0.000 abstract description 4
- 101100008050 Caenorhabditis elegans cut-6 gene Proteins 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 210000002421 cell wall Anatomy 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229920006038 crystalline resin Polymers 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- 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
- B29C45/2606—Guiding or centering means
-
- 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
-
- 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
-
- 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
- B29C45/2708—Gates
Abstract
The invention discloses the mould for avoiding producing weld mark during injection, including preceding mould and rear mold, forming table is provided with rear mold, it is two neighboring enter glue point between be provided with inverted draw cut and kerve, inverted draw cut is located in forming table, and the pod apertures I that one end is connected with inverted draw cut are provided with the end face away from rear mold in forming table；The kerve is located in rear mold on the end face of preceding mould, and the pod apertures II that one end is connected with kerve are provided with the end face of preceding mould in rear mold.By setting inverted draw cut, pod apertures I, kerve and pod apertures II, flowed into the molten mass in die cavity via the other end of pod apertures I in inverted draw cut so as to enter glue point by each at first or enter kerve via pod apertures II, the molten mass that temperature is reduced is discharged into inverted draw cut or kerve, in order to which the temperature difference is small when molten mass is contacted in die cavity mutually melts simultaneously formed product, to avoid excessive temperature differentials from causing the generation of weld mark, and then high product strength and service life.
Description
Technical field
The present invention relates to a kind of mould, and in particular to avoids producing the mould of weld mark during injection.
Background technology
Injection is a kind of method that industrial products produce moulding.The core of injection be injection mold, Shooting Technique and
Raw material.Wherein：
First, injection mold
If 1. mold cavity processing is bad, if any the deficiency such as scar, micropore, abrasion, coarse, plastic will certainly be reacted to
On, make plastic gloss bad, in this regard, wanting meticulous processing mold, mold cavity surface is had less roughness, plating can be polished if necessary
Chromium.
If 2. mold cavity surface have greasy dirt, it is water stain, or releasing agent make too much, can make plastic surface obfuscation, it is lackluster, it is right
This, greasy dirt will be removed in time and water stain, and is limited the quantity and used releasing agent.
3. if plastic draw taper is too small, the demoulding is difficult, or stress is excessive during the demoulding, makes plastic lustrous surface * good, right
This, will increase draw taper.
4. if die venting is bad, excessive gas is rested in model, also causes gloss bad, in this regard, to check and repair
Positive mould gas extraction system.
If 5. cast gate or the too small or suddenly change of cross section of fluid channel product, too big by shearing action when melt flows wherein, being in
Turbulent flow dynamically flows, and causes gloss bad, in this regard, cast gate and cross section of fluid channel product should be increased suitably.
2nd, Shooting Technique
1. if injection speed is excessively less than normal, plastic surface leakiness, it is bad to show gloss, in this regard, injection speed can be properly increased
Degree.
2. for thick-sectional part, such as cool down insufficient, its surface can be scared, and gloss is partially dark, in this regard, should improve cooling system
System.
3. if dwell pressure is not enough, the dwell time is partially short, make plastic density not enough and gloss is bad, in this regard, guarantor should be increased
Pressure pressure and dwell time.
If 4. melt temperature is too low so that mobility is poor, it is bad to be easily caused gloss, in this regard, melt temperature should be properly increased
Degree.
5. for the plastic of crystalline resins, such as PE, PP, POM making, such as inhomogeneous cooling is even to cause gloss bad, right
This, should improve cooling system, be allowed to uniform cooling.
If 6. injection speed is excessive, and gate area is too small, then pouring can shade and gloss is bad near product, in this regard,
Injection speed and increase gate area can suitably be reduced.
3rd, raw material
1. starting material particle size differs greatly, making it difficult to homogenous plasticized, and gloss is bad, in this regard, should carry out raw material
Screening process.
2. in raw material reworked material or regrinding-material add it is too many, influence melt homogenous plasticized and gloss is bad, in this regard, should subtract
Few reworked material or regrinding-material addition.
For industrial outward appearance plastic product, centre has generally required embedded display panel, so this part plastic can be designed to
Logical frame.Because the volume ratio of product is larger and thick bottom is small, entering glue with single-point can not fill full, general to click through glue with more.And use
When multipoint mode enters glue, because mold temperature is 50 DEG C -60 DEG C, and the temperature of molten mass is entered after glue at 200 DEG C -300 DEG C, melting
Body flows in die cavity, can make to enter in advance the melt temperature reduction in die cavity, and then can be produced in the junction of molten mass
The temperature difference, and obvious weld mark can be produced on product because of temperature differencies, weld mark can not only influence the outward appearance of injecting products,
It can also cause product strength not enough, and its easily cause product to be split at weld mark position, reduce its service life.
The content of the invention
, can be at several strands when solving many click-through glue present invention aims at the mould for avoiding producing weld mark when providing injection
The problem of melt junction produces weld mark because of temperature differencies.
The present invention is achieved through the following technical solutions：
Avoid producing the mould of weld mark, including preceding mould and rear mold during injection, set in rear mold on the end face of preceding mould
Forming table is equipped with, when preceding mould coordinates with rear mold, forming table is located in preceding mould, and molten mass flows into forming table from preceding mould centerline
On the upper end face away from rear mold, and via lead glue groove it is multiple enter glue point flow into before in die cavity between mould and rear mold, adjacent
Two are entered between glue point to be provided with inverted draw cut and kerve, and the inverted draw cut is located in forming table on the end face away from rear mold, in shaping
On platform the pod apertures I that one end is connected with inverted draw cut are provided with the end face away from rear mold；The kerve is located in rear mold close to preceding mould
End face on, in rear mold close to preceding mould end face on be provided with the pod apertures II that one end is connected with kerve；During injecting glue, lead at first
Cross each and enter glue point and flow into inverted draw cut or enter via pod apertures II via the other end of pod apertures I into the molten mass in die cavity
Enter kerve.
By setting inverted draw cut, pod apertures I, kerve and pod apertures II, enter so as to enter glue point by each at first in die cavity
Molten mass flowed into via the other end of pod apertures I in inverted draw cut or via pod apertures II enter kerve, by temperature reduce it is molten
Melt body is discharged into inverted draw cut or kerve, in order to which the temperature difference is small when molten mass is contacted in die cavity mutually melts simultaneously formed product, to avoid temperature
Difference is excessive to cause the generation of weld mark, and then high product strength and service life.
Further, the pod apertures I and pod apertures II are arcuate socket, and one end of pod apertures I and the bottom land of inverted draw cut connect
Logical, the other end of pod apertures I is connected with one end in forming table on the end face away from rear mold close to its sideline；The pod apertures II
One end connected with the bottom land of kerve, on the other end and rear mold of pod apertures II close to preceding mould end face on close to forming table one
End connection.
Be arcuate socket by pod apertures I and pod apertures II, when being easy to product depanning, product edge with positioned at pod apertures I and
Material body in pod apertures II disconnects automatically, without the cut-out of later stage manpower, reduces post-production cost.
Further, the aperture of the pod apertures I gradually increases from the one end connected with inverted draw cut bottom land to the other end, water conservancy diversion
The aperture in hole II gradually increases from the one end connected with kerve bottom land to the other end.
Further, the opening size of the inverted draw cut and kerve is all higher than bottom land size.
One end aperture in pod apertures I and pod apertures II close to molten mass entrance is bigger than the other end, is not only convenient for low temperature
Molten mass flow into pod apertures, and when complete into glue after, it is to avoid the molten mass in inverted draw cut and kerve flows back.
Further, it is described to lead glue groove in the forming table on the end face away from rear mold, and lead glue groove for X-shaped, it is described enter
Glue point has four, respectively positioned at leading on four ends of glue groove；
Grooving is provided with the end face of rear mold on preceding mould, the bottom land of grooving backgauge platform is provided with, preceding
The midline of mould is provided with glue feeding opening, when preceding mould coordinates with rear mold, and forming table is located in grooving, and backgauge platform is pressed in forming table
On, and glue groove will be led and inverted draw cut is covered；Molten mass flows into the center of glue groove of leading from glue feeding opening simultaneously, via leading glue groove and enter
Glue point enters die cavity.
Further, flared channels are provided with the end for leading glue groove, the small end of the flared channels is with leading glue groove company
Connect, the big end of flared channels is connected with die cavity.Because the pressure of injecting glue is very big, not only setting for flared channels is beneficial to leading for molten mass
To, also avoid being near completion injecting glue when, entering, stress at glue point is excessive.
Further, material blocking block is provided with the end face of forming table on the backgauge platform, current mould is matched somebody with somebody with rear mold
During conjunction, material blocking block and glue groove cooperation is led, and material blocking block and lead the gap having between glue groove for the molten mass that circulates.Backgauge platform is set
Put and avoid molten mass when being near completion injecting glue, flow between forming table and preceding mould, and the setting of material blocking block, make molten mass only
It can be flowed along the cell wall for leading glue groove, without under the effect of the pressure of great injecting glue, between backgauge platform and forming table
Contact surface overflows.
The present invention compared with prior art, has the following advantages and advantages：
1st, avoid producing the mould of weld mark during present invention injection, by setting inverted draw cut, pod apertures I, kerve and pod apertures
II so that at first by each enter glue point flowed into the molten mass in die cavity via the other end of pod apertures I in inverted draw cut or
Enter kerve via pod apertures II, the molten mass that temperature is reduced is discharged into inverted draw cut or kerve, in order to which molten mass is in die cavity
Contact is mutually melted and the temperature difference is small during formed product, to avoid excessive temperature differentials from causing the generation of weld mark, so high product strength and
Service life；
2nd, avoid producing the mould of weld mark during present invention injection, due to injecting glue pressure greatly, flared channels are not only set
Put the guiding beneficial to molten mass, also avoid being near completion injecting glue when, entering, stress at glue point is excessive；
3rd, avoid producing the mould of weld mark during present invention injection, the setting of backgauge platform avoids molten mass in the note that is near completion
During glue, flow between forming table and preceding mould, and the setting of material blocking block, make molten mass be only capable of flowing along the cell wall for leading glue groove,
Without under the effect of the pressure of great injecting glue, being overflowed from the contact surface between backgauge platform and forming table.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of preceding mould；
Fig. 2 is the structural representation of rear mold；
Fig. 3 is the top view of rear mold；
Fig. 4 is the sectional view of the A-A along along Fig. 3；
Fig. 5 is the sectional view of the B-B along along Fig. 3；
Fig. 6 is the enlarged diagram at inverted draw cut；
Fig. 7 is the enlarged diagram at kerve；
Fig. 8 is the cooperation schematic diagram into glue groove and material blocking block；
Fig. 9 is product structure schematic diagram；
Figure 10 is the product structure schematic diagram before depanning；
Figure 11 is the present invention of matched moulds state.
Mark and corresponding parts title in accompanying drawing：
Mould before 1-, 2- rear molds, 3- forming table, 4- leads glue groove, and 5- enters glue point, 6- inverted draw cuts, 7- kerves, 8- pod apertures I, and 9- is led
Discharge orifice II, 10- groovings, 11- backgauge platforms, 12- glue feeding openings, 13- flared channels, 14- material blocking blocks, 15- products.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment 1
As Figure 1-Figure 11, avoid producing the mould of weld mark, including preceding mould 1 and rear mold 2 during present invention injection, rear
Forming table 3 is provided with mould 2 on the end face of preceding mould 1, when preceding mould 1 coordinates with rear mold 2, forming table 3 is located in preceding mould 1, and
Molten mass from the preceding centerline of mould 1 flow into forming table 3 on away from rear mold 2 end face on, and via lead glue groove 4 it is multiple enter glue point
5 flow into before in die cavities between mould 1 and rear mold 2, it is two neighboring enter glue point 5 between be provided with inverted draw cut 6 and kerve 7, it is described
Inverted draw cut 6 be located at forming table 3 on away from rear mold 2 end face on, in forming table 3 away from rear mold 2 end face on be provided with one end with
The pod apertures I 8 that inverted draw cut 6 is connected；The kerve 7 is located in rear mold 2 on the end face of preceding mould 1, close to preceding mould 1 in rear mold 2
End face on be provided with the pod apertures II 9 that one end is connected with kerve 7；During injecting glue, glue point 5 is entered by each at first and entered in die cavity
Molten mass via pod apertures I 8 the other end flow into inverted draw cut 6 in or via pod apertures II 9 enter kerve 7.
By setting inverted draw cut 6, pod apertures I 8, kerve 7 and pod apertures II 9, so that entering glue point 5 by each at first enters type
Molten mass in chamber flows into inverted draw cut 6 via the other end of pod apertures I 8 or enters kerve 7 via pod apertures II 9, by temperature
The molten mass of reduction is discharged into inverted draw cut 6 or kerve 7, in order to temperature difference when molten mass is contacted in die cavity mutually melts simultaneously formed product
It is small, to avoid excessive temperature differentials from causing the generation of weld mark, and then high product strength and service life.
Embodiment 2
The present invention is that on the basis of embodiment 1, the present invention is further illustrated.
As Figure 1-Figure 11, avoid producing the mould of weld mark, the pod apertures I 8 and pod apertures during present invention injection
II 9 be arcuate socket, and one end of pod apertures I 8 is connected with the bottom land of inverted draw cut 6, the other end of pod apertures I 8 with it is remote in forming table 3
One end on the end face of rear mold 2 close to its sideline is connected；One end of the pod apertures II 9 is connected with the bottom land of kerve 7, pod apertures
II 9 other end is connected with one end in rear mold 2 close to forming table 3 on the end face of preceding mould 1.
It is arcuate socket by pod apertures I 8 and pod apertures II 9, when being easy to product depanning, product edge is with being located at pod apertures I 8
Disconnected automatically with the material body in pod apertures II 9, without the cut-out of later stage manpower, reduce post-production cost.
Further, the aperture of the pod apertures I 8 gradually increases from the one end connected with the bottom land of inverted draw cut 6 to the other end, leads
The aperture of discharge orifice II 9 gradually increases from the one end connected with the bottom land of kerve 7 to the other end.
Further, the opening size of the inverted draw cut 6 and kerve 7 is all higher than bottom land size.
One end aperture in pod apertures I 8 and pod apertures II 9 close to molten mass entrance is bigger than the other end, is not only convenient for low
The molten mass of temperature is flowed into pod apertures, and after completing into glue, it is to avoid the molten mass backflow in inverted draw cut 6 and kerve 7.
Embodiment 3
The present invention is that on the basis of embodiment 1, the present invention is further illustrated.
As Figure 1-Figure 11, avoid producing the mould of weld mark during present invention injection, the glue groove 4 of leading is positioned at forming table
On 3 on the end face away from rear mold 2, and lead glue groove 4 for X-shaped, it is described enter glue point 5 have four, respectively positioned at four ends for leading glue groove 4
On end；
Grooving 10 is provided with the end face of rear mold 2 on preceding mould 1, the bottom land of grooving 10 is provided with backgauge platform
11, the midline of preceding mould 1 is provided with glue feeding opening 12, when preceding mould 1 coordinates with rear mold 2, forming table 3 is located in grooving 10, gear
Material platform 11 is pressed in forming table 3, and will lead glue groove 4 and inverted draw cut 6 is covered；Molten mass flows into from glue feeding opening 12 and leads glue groove 4 simultaneously
Center, via leading glue groove 4 and enter glue point 5 and enter die cavity.
Further, flared channels 13 are provided with the end for leading glue groove 4, the small end of the flared channels 13 is with leading glue
Groove 4 is connected, and the big end of flared channels 13 is connected with die cavity.Because the pressure of injecting glue is very big, the not only setting of flared channels 13 is beneficial to melt
The guiding of melt body, also avoid being near completion injecting glue when, entering, stress at glue point 5 is excessive.
Further, be provided with material blocking block 14 on the end face of forming table 3 on the backgauge platform 11, current mould 1 with
When rear mold 2 coordinates, material blocking block 14 coordinates with leading glue groove 4, and material blocking block 14 and leading between glue groove 4 has between the molten mass that circulates
Gap.The setting of backgauge platform 11 avoids molten mass when being near completion injecting glue, flows between forming table 3 and preceding mould 1, and material blocking block
14 setting, makes molten mass be only capable of flowing along the cell wall for leading glue groove 4, under being acted in the pressure of great injecting glue, from
Contact surface between backgauge platform 1 and forming table 3 overflows.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (7)
1. avoid producing the mould of weld mark during injection, including preceding mould (1) and rear mold (2), close to preceding mould (1) in rear mold (2)
End face on be provided with forming table (3), when preceding mould (1) coordinates with rear mold (2), forming table (3) is located in preceding mould (1), and melting
Body is flowed on forming table (3) on the end face away from rear mold (2) from preceding mould (1) centerline, and via lead glue groove (4) it is multiple enter
Glue point (5) is flowed into preceding die cavity between mould (1) and rear mold (2), it is characterised in that：It is two neighboring enter glue point (5) between
Inverted draw cut (6) and kerve (7) are provided with, the inverted draw cut (6) is located in forming table (3) on the end face away from rear mold (2), in forming table
(3) pod apertures I (8) that one end is connected with inverted draw cut (6) are provided with the end face away from rear mold (2) on；After the kerve (7) is located at
On mould (2) on the end face of preceding mould (1), one end and kerve (7) are provided with the end face of preceding mould (1) in rear mold (2)
The pod apertures II (9) of connection；
During injecting glue, glue point (5) is entered by each at first and flowed into the molten mass in die cavity via the other end of pod apertures I (8)
Enter kerve (7) in inverted draw cut (6) or via pod apertures II (9).
2. avoid producing the mould of weld mark during injection according to claim 1, it is characterised in that：The pod apertures I (8)
Be arcuate socket with pod apertures II (9), one end of pod apertures I (8) is connected with the bottom land of inverted draw cut (6), pod apertures I (8) it is another
Hold and connected with one end in forming table (3) on the end face away from rear mold (2) close to its sideline；One end of the pod apertures II (9)
Connected with the bottom land of kerve (7), the other end of pod apertures II (9) and the close shaping on the end face of preceding mould (1) in rear mold (2)
One end connection of platform (3).
3. avoid producing the mould of weld mark during injection according to claim 1, it is characterised in that：The pod apertures I (8)
Aperture gradually increase to the other end from the one end connected with inverted draw cut (6) bottom land, the apertures of pod apertures II (9) from kerve (7)
One end of bottom land connection gradually increases to the other end.
4. avoid producing the mould of weld mark during injection according to claim 1, it is characterised in that：The inverted draw cut (6) and
The opening size of kerve (7) is all higher than bottom land size.
5. avoid producing the mould of weld mark during injection according to claim 1, it is characterised in that：It is described to lead glue groove (4)
In forming table (3) on the end face away from rear mold (2), and lead glue groove (4) for X-shaped, it is described enter glue point (5) have four, respectively
Positioned at leading on four ends of glue groove (4)；
Grooving (10) is provided with the end face of rear mold (2) on preceding mould (1), the bottom land of grooving (10) is provided with gear
Expect platform (11), the midline of preceding mould (1) is provided with glue feeding opening (12), when preceding mould (1) coordinates with rear mold (2), forming table (3) position
In grooving (10), backgauge platform (11) is pressed in forming table (3), and will lead glue groove (4) and inverted draw cut (6) is covered；Melt simultaneously
Melt body flows into the center of glue groove (4) of leading from glue feeding opening (12), is entering die cavity via leading glue groove (4) and enter glue point (5).
6. avoid producing the mould of weld mark during injection according to claim 5, it is characterised in that：Glue groove is led described
(4) end is provided with flared channels (13), and the small end of the flared channels (13) is connected with leading glue groove (4), flared channels (13)
Big end is connected with die cavity.
7. avoid producing the mould of weld mark during injection according to claim 6, it is characterised in that：In the backgauge platform
(11) material blocking block (14) is provided with the end face of forming table (3), when current mould (1) coordinates with rear mold (2), material blocking block
(14) with leading glue groove (4) cooperation, and material blocking block (14) and the gap having between glue groove (4) for the molten mass that circulates is led.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526490.2A CN107214916A (en) | 2017-06-30 | 2017-06-30 | Avoid producing the mould of weld mark during injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526490.2A CN107214916A (en) | 2017-06-30 | 2017-06-30 | Avoid producing the mould of weld mark during injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107214916A true CN107214916A (en) | 2017-09-29 |
Family
ID=59951841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710526490.2A Withdrawn CN107214916A (en) | 2017-06-30 | 2017-06-30 | Avoid producing the mould of weld mark during injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107214916A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108724638A (en) * | 2018-06-26 | 2018-11-02 | 珠海格力精密模具有限公司 | Sprue gate mold insert and mold including it |
| CN115214098A (en) * | 2022-07-20 | 2022-10-21 | 安徽康宏精密制造有限公司 | Precise injection molding part manufacturing device and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922685A (en) * | 2012-11-12 | 2013-02-13 | 凡嘉科技（无锡）有限公司 | Horn ejection structure |
| CN203409959U (en) * | 2013-06-19 | 2014-01-29 | 东莞市旭通达模具塑胶有限公司 | Novel injection mold |
| CN205997276U (en) * | 2016-08-04 | 2017-03-08 | 江苏文光模具技术有限公司 | A kind of lampshade class injection mold gate structure |
| CN206999524U (en) * | 2017-06-30 | 2018-02-13 | 泸州市胜科模具制造有限公司 | Injecting products are avoided to produce the mould of weld mark |
-
2017
- 2017-06-30 CN CN201710526490.2A patent/CN107214916A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922685A (en) * | 2012-11-12 | 2013-02-13 | 凡嘉科技（无锡）有限公司 | Horn ejection structure |
| CN203409959U (en) * | 2013-06-19 | 2014-01-29 | 东莞市旭通达模具塑胶有限公司 | Novel injection mold |
| CN205997276U (en) * | 2016-08-04 | 2017-03-08 | 江苏文光模具技术有限公司 | A kind of lampshade class injection mold gate structure |
| CN206999524U (en) * | 2017-06-30 | 2018-02-13 | 泸州市胜科模具制造有限公司 | Injecting products are avoided to produce the mould of weld mark |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108724638A (en) * | 2018-06-26 | 2018-11-02 | 珠海格力精密模具有限公司 | Sprue gate mold insert and mold including it |
| CN108724638B (en) * | 2018-06-26 | 2023-09-08 | 珠海格力精密模具有限公司 | Pouring gate insert and die comprising same |
| CN115214098A (en) * | 2022-07-20 | 2022-10-21 | 安徽康宏精密制造有限公司 | Precise injection molding part manufacturing device and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107214916A (en) | Avoid producing the mould of weld mark during injection | |
| CN211389927U (en) | Mold cooling water channel | |
| US8083516B2 (en) | Mold having air-venting grooves | |
| CN210453566U (en) | Automatic gate breaking injection mold by means of slider mold opening | |
| CN206999524U (en) | Injecting products are avoided to produce the mould of weld mark | |
| US10759098B2 (en) | Injection molding method and injection molding device for transparent resin molded article | |
| CN217098831U (en) | Ultrahigh molecular weight polyethylene extrusion molding mold core | |
| CN215472732U (en) | Novel double-sprue injection mold with balanced materials | |
| CN115366320A (en) | Injection product mold, injection product mold processing method and injection product | |
| CN210308820U (en) | A mould for car electrical apparatus box | |
| CN212707816U (en) | Obliquely jacking glue injection molding device | |
| CN107053598A (en) | A kind of mould for being molded earphone case | |
| CN204255723U (en) | For the batten mould of modified plastics test | |
| CN207915928U (en) | A kind of Novel injection mold shell | |
| CN209222913U (en) | Flow-guilding mold and profile extrusion die group | |
| CN106003583A (en) | High-yield injection mold | |
| CN210126248U (en) | But injection mold for batch production | |
| CN206825815U (en) | A kind of mould for being molded earphone case | |
| CN205326136U (en) | Ultra -thin wall battery cover injection mold | |
| CN218429794U (en) | Inner glue feeding structure die | |
| CN212707824U (en) | Gating system and injection mold with same | |
| CN217514438U (en) | Pipe fitting hot runner mold | |
| CN214000366U (en) | Full-automatic trimming injection mold for plastic storage box flash | |
| CN109648800B (en) | Submarine runner plug mould | |
| CN214562626U (en) | Runner that PVC pipe fitting mould runner weight reduces improves structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170929 |
|
| WW01 | Invention patent application withdrawn after publication |