CN109159381A - A kind of injection mold glue mouth needle control device - Google Patents
A kind of injection mold glue mouth needle control device Download PDFInfo
- Publication number
- CN109159381A CN109159381A CN201811329211.4A CN201811329211A CN109159381A CN 109159381 A CN109159381 A CN 109159381A CN 201811329211 A CN201811329211 A CN 201811329211A CN 109159381 A CN109159381 A CN 109159381A
- Authority
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- China
- Prior art keywords
- solenoid valve
- needle
- glue mouth
- piston
- injection mold
- 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.)
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- 239000003292 glue Substances 0.000 title claims abstract description 74
- 238000002347 injection Methods 0.000 title claims abstract description 44
- 239000007924 injection Substances 0.000 title claims abstract description 44
- 239000011347 resin Substances 0.000 claims abstract description 35
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 238000000465 moulding Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013589 supplement Substances 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
- B29C45/2803—Closure devices therefor comprising a member with an opening or the injection nozzle movable into or out of alignment with the sprue channel or mould gate
-
- 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
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
- B29C45/281—Drive means 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
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76595—Velocity
Abstract
The invention discloses a kind of injection mold glue mouth needle control devices, it include: type chamber, first jet, second nozzle, the first glue lancet valve gear, the second glue lancet valve gear, the first solenoid valve, second solenoid valve, throttle valve and control unit, control unit includes timing device, respectively with the first solenoid valve and second solenoid valve linearly connected, the movement of the first solenoid valve and second solenoid valve is controlled.Through the above way, injection mold glue mouth needle control device of the present invention, especially use throttle valve and compressed air auxiliary piping, the opening speed of the second needle of subsequent opening can be made to be slower than the opening speed of the first needle of first front opening, it is reduced by the intracavitary molten resin amount of the second glue mouth injection type, avoid the point of molten resin or converges field current mark occur bad.
Description
Technical field
The present invention relates to injection mold fields, more particularly to a kind of injection mold glue mouth needle control device.
Background technique
What the control mode of traditional more glue mouth hot runner plastic injection moulds was usually taken is according to pre-set timing
Device controls the control that signal carries out solenoid valve, and glue mouth needle is successively controlled.Glue mouth valve is controlled according to timing device
The mode of needle, the needle on a Jiao Kou is first opened, then in resin inflow type chamber, in mold filling process, and second glue
Needle on mouth is opened again, and continues to inject molten resin into the same type chamber, and injection type is intracavitary after second Jiao Kou is opened
Molten resin and after first intracavitary molten resin of glue mouth injection type merged, fill up entire type chamber.
But the above-mentioned traditional hot runner plastic injection mould existing defects for realizing that Jiao Kou is successively opened and closed by timing device, because
The needle on second Jiao Kou that needle in first glue mouth and postorder are opened is controlled by cylinder respectively, flow into cylinder and from
The air supply being discharged in cylinder is certain, in fact, the needle and second glue mouth needle in first glue mouth be with
Same speed folding, therefore, subsequently through second intracavitary portion of glue mouth injection type molten resin injection initial stage
Inject with maximum charging quantity and maximum filling pressure, with by first Jiao Kou inject towards second direction Jiao Kou
When the molten resin fusion of flowing, surface causes to form bad it is possible that current mark and weld mark, needs to improve.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of injection mold glue mouth needle control devices, control subsequent glue
Speed, charging quantity and pressure when mouth injection molten resin, promote molten resin and merge Forming Quality.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of injection mold glue mouth valve is provided
Needle control device, comprising:
Type chamber is arranged at intervals with and type chamber by forming after the upper die and lower die molding of glue mouth formula hot runner plastic injection mould in upper mold
Corresponding first Jiao Kou and the second Jiao Kou；
First jet is arranged in upper mold, is connected to by the first Jiao Kou with type chamber；
Second nozzle is arranged in upper mold, is connected to by the second Jiao Kou with type chamber；
First glue lancet valve gear, including the first needle and first piston component, the first needle top and first piston group
Part is connected, and bottom extends in first jet the control for carrying out the first Jiao Kou；
Second glue lancet valve gear, including the second needle and second piston component, the second needle top and second piston group
Part is connected, and bottom extends in second nozzle the control for carrying out the second Jiao Kou；
First solenoid valve carries out piping connection with first piston component, controls the piston motion of first piston component, driving first
Needle carries out the unlatching and closure of the first Jiao Kou；
Second solenoid valve carries out piping connection with second piston component, controls the piston motion of second piston component, driving second
Needle carries out the unlatching and closure of the second Jiao Kou；
Throttle valve is arranged on gas exhaust piping when second piston component rises；
Control unit, including timing device, respectively with the first solenoid valve and second solenoid valve linearly connected, control the first solenoid valve and
The movement of second solenoid valve.
In a preferred embodiment of the present invention, the first piston component includes the first cylinder and first piston, described
First piston is arranged in the first cylinder and the cavity of the first cylinder is divided into the first chamber above and below first piston
Body and the second cavity, be provided on first solenoid valve the first pipeline being connected with the first cavity and with the second cavity
The second pipeline being connected.
In a preferred embodiment of the present invention, the second piston component includes the second cylinder and second piston, described
Second piston is arranged in the second cylinder and the cavity of the second cylinder is divided into the third chamber above and below second piston
Body and the 4th cavity, be provided in the second solenoid valve third pipeline being connected with third cavity and with the 4th cavity
The 4th pipeline being connected.
In a preferred embodiment of the present invention, the throttle valve is arranged on third pipeline, sets on the third pipeline
It is equipped with the check-valves in parallel with throttle valve.
In a preferred embodiment of the present invention, downstream side corresponding with third pipeline is connected in the second solenoid valve
Air discharge duct road, the throttle valve are arranged on downstream side air discharge duct road.
In a preferred embodiment of the present invention, the throttle valve is arranged on the passing away of second solenoid valve.
It in a preferred embodiment of the present invention, further include compressed air auxiliary piping, the compressed air auxiliary piping
It is connected with third pipeline or downstream side air discharge duct road, is provided with pilot solenoid valve on the compressed air auxiliary piping
And pressure reducing valve, the pilot solenoid valve and control unit linearly connected.
In a preferred embodiment of the present invention, second needle includes guide rod and stick harness, and the bottom end of the guide rod is set
It is equipped with frustum, the stick harness is arranged concentrically on the lower section of frustum, and the diameter of the stick harness is less than the diameter of guide rod.
In a preferred embodiment of the present invention, the resin channels in the second nozzle include lower end straight hole channel and upper
Channel is held, the taper hole shape channel expanded upwards connecting with Upper passage top is provided with above lower end straight hole channel.
In a preferred embodiment of the present invention, guide rod outer circle lower part indent is provided with planar slot, and planar slot is under
The resin fine channel that a fixed spacing is formed between the straight hole channel of end, when the lower end of the stick harness is located at the upper end of the second Jiao Kou,
The upper end in the top and bottom straight hole channel of planar slot is corresponding.
The beneficial effects of the present invention are: a kind of injection mold glue mouth needle control device that the present invention points out, especially uses
Throttle valve and compressed air auxiliary piping, can make the opening speed of the second needle of subsequent opening to be slower than first front opening
The first needle opening speed, reduced by the intracavitary molten resin amount of the second glue mouth injection type, when injecting molten resin
Speed and pressure are flexibly controllable, effectively avoid the point of molten resin or converge field current mark occur bad, improve product
Quality.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is a kind of structural schematic diagram of one preferred embodiment of injection mold glue mouth needle control device of the present invention；
Fig. 2 is the movement comparison line chart of the first needle and the second needle in Fig. 1；
Fig. 3 is a kind of structural schematic diagram of injection mold glue mouth needle control device another embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of injection mold glue mouth needle control device another preferred embodiment of the present invention；
Fig. 5 is the substructure schematic diagram of the second needle 51 in a kind of injection mold glue mouth needle control device of the present invention；
Structural representation when Fig. 6 is the second glue mouth of the second needle closing in a kind of injection mold glue mouth needle control device of the present invention
Figure；
Fig. 7 is the partial enlarged view of part A in Fig. 6；
Fig. 8 is before the second needle slowly rises the second glue mouth of opening in a kind of injection mold glue mouth needle control device of the present invention
Structural schematic diagram；
Fig. 9 is the partial enlarged view of part B in Fig. 8.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Fig. 1 ~ Fig. 9 is please referred to, the embodiment of the present invention includes:
A kind of injection mold glue mouth needle control device, comprising:
Type chamber 10, by glue mouth formula hot runner plastic injection mould upper mold 1 and lower die 2 molding after form, be arranged at intervals in upper mold 1 with
The quantity of the corresponding first glue mouth 11 of type chamber 10 and the second glue mouth 12, the first glue mouth 11 and the second glue mouth 12 can be 1 respectively,
It is also possible to multiple；
First jet 20 is arranged in upper mold 1, is connected to by the first glue mouth 11 with type chamber 10；
Second nozzle 30 is arranged in upper mold 1, is connected to by the second glue mouth 12 with type chamber 10；
First glue lancet valve gear 40, including the first needle 41 and first piston component 42, first needle, 41 top and the
One piston component 42 is connected, and bottom extends in first jet 20 control for carrying out the first glue mouth 11, and first jet 20 includes
There are resin channels 22, facilitate passing through for the first needle 41 and molten resin, the hot flow path 6a in resin channels 22 and flow distribution plate 6 connects
It is logical；
Second glue lancet valve gear 50, including the second needle 51 and second piston component 52, second needle, 51 top and the
Two piston components 42 are connected, and bottom extends in second nozzle 30 control for carrying out the second glue mouth 12, contain in second nozzle 30
There are resin channels 32, resin channels 32 are connected to the hot flow path 6a in flow distribution plate 6；
First solenoid valve 70 carries out piping connection with first piston component 42, controls the piston motion of first piston component 42, drives
Dynamic first needle 41 carries out the unlatching and closure of the first glue mouth 11, and the first piston component 42 includes the first cylinder 430 and the
One piston 43, the first piston 43 are arranged in the first cylinder 430 and the cavity of the first cylinder are divided into positioned at first piston
The first cavity 43a and the second cavity 43b above and below in the of 43 are provided with and the first cavity on first solenoid valve 70
The first pipeline 44 that 43a is connected and the second pipeline 45 being connected with the second cavity 43b；
Second solenoid valve 80 carries out piping connection with second piston component 52, controls the piston motion of second piston component 52, drives
Dynamic second needle 51 carries out the unlatching and closure of the second glue mouth 12, and the second piston component 52 includes the second cylinder 530 and the
Two pistons 53, the second piston 53 are arranged in the second cylinder 530 and are divided into the cavity of the second cylinder 530 living positioned at second
The third cavity 53a and the 4th cavity 53b above and below in the of 53 are filled in, is provided with and third cavity in the second solenoid valve 80
The third pipeline L3 that 53a is connected and the 4th pipeline L4 being connected with the 4th cavity 53b；
Throttle valve 56 is arranged on gas exhaust piping when second piston component 52 rises, reduces from third cavity 53a toward outlet
Air capacity out, the second needle 51 of delay opens the speed of the second glue mouth 12, mountable on multiple positions；
Control unit 60, including timing device control the first electricity respectively with 80 linearly connected of the first solenoid valve 70 and second solenoid valve
The movement of magnet valve 70 and second solenoid valve 80, clearing signal (So) of the control unit 60 to the first solenoid valve 70 hair gum outlet needle
Or the shutdown signal (Sc) of glue mouth needle, the first solenoid valve 70 select conversion open position 72 according to the coil of two sides or close
Position 71, carries out the elevating control of the first needle 41, and control unit 60 sends out the open letter of gum outlet needle to second solenoid valve 80
The shutdown signal (Sc) of number (So) or glue mouth needle, second solenoid valve 80 select conversion open position 81 according to the coil of two sides
Or closed position 82, realize the elevating control of the second needle 51, when injection molding, the first needle 41 first rises and gets through the first Jiao Kou
11, molten resin injection type chamber 10, after separated in time, the second needle 51 rises and gets through the second glue mouth 12, then
Molten resin injection type chamber 10.
Embodiment 1:
Downstream side air discharge duct road 54 corresponding with third pipeline L3, the throttle valve are connected in the second solenoid valve 80
56 are arranged on downstream side air discharge duct road 54, carry out the control of 80 extraction flow of second solenoid valve.
Embodiment 2:
The throttle valve 56 is arranged on third pipeline L3, is provided with the non-return in parallel with throttle valve 56 on the third pipeline L3
Valve 57, unidirectionally passes through, allow to be supplied to by third pipeline L3 the indoor compressed air of upside cylinder of third cavity 53a around
Cross throttle valve 56, it is ensured that 12 closing velocity of the second glue mouth.
Embodiment 3:
The throttle valve 56 is arranged on the passing away L32 of second solenoid valve 80, simple for structure.
In addition, in order to which on 56 place pipeline of throttle valve, with the back pressure of steady pressure, compressed air auxiliary can also be increased
Pipeline L5, the compressed air auxiliary piping L5 is connected with third pipeline L3 or downstream side air discharge duct road 54, described
Pilot solenoid valve 90 and pressure reducing valve 91, the pilot solenoid valve 90 and control unit 60 are provided on compressed air auxiliary piping L5
Linearly connected carries out the control of pilot solenoid valve 90 using control unit 60, and the compressed air of supplement is made by pressure reducing valve 91
Pressure reduce to certain value, maintain the back pressure on 56 place pipeline of throttle valve with certain pressure, act more stable；
Embodiment 4:
Second needle 51 includes guide rod 51b and stick harness 51a, and the bottom end of the guide rod is provided with frustum, and the stick harness 51a is same
The lower section of frustum is arranged in the heart, and the diameter of the stick harness 51a is less than the diameter of guide rod, the resin channels in the second nozzle 30
32 include lower end straight hole channel 34 and Upper passage, is provided with above lower end straight hole channel 34 and connect at the top of Upper passage
The taper hole shape channel 33 expanded upwards so that resin channels 32 are up big and down small.
Guide rod 51b outer circle lower part indent is provided with planar slot 51c, shape between planar slot 51c and lower end straight hole channel
At the resin fine channel of a fixed spacing, when the lower end of the stick harness 51a is located at the upper end 12a of the second glue mouth 12, planar slot 51c
Upper end 51e it is corresponding with the upper end 34a in lower end straight hole channel 34, retain certain stroke.Compared to the upper raising speed of the first needle 41
Degree, when the second needle 51 is with the rising of comparatively slow speed, even if the concentration of molten resin is varied (especially concentration
When increase), also have micro molten resin by resin fine channel injection type chamber 10, the second glue mouth 12 inject initial stage with
The filling of small flow molten resin carry out type chamber 10 promotes the interflow point mass being molded twice.
In conclusion a kind of injection mold glue mouth needle control device that the present invention points out, the first glue mouth 11 and the second glue
Mouthfuls 12 respectively open in a certain order, and the filling velocity of molten resin that injects of the second glue mouths 12 opened after making is than the
The filling velocity for the molten resin that one glue mouth 11 first injects is slow, and the molten resin first injected and the molten resin being subsequently implanted into are closing
Flow point is not in the bad problem of injection similar to current mark, improves the qualification rate of product.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of injection mold glue mouth needle control device controls the glue mouth needle of glue mouth formula hot runner plastic injection mould,
It is characterised by comprising:
Type chamber is arranged at intervals with and type chamber by forming after the upper die and lower die molding of glue mouth formula hot runner plastic injection mould in upper mold
Corresponding first Jiao Kou and the second Jiao Kou；
First jet is arranged in upper mold, is connected to by the first Jiao Kou with type chamber；
Second nozzle is arranged in upper mold, is connected to by the second Jiao Kou with type chamber；
First glue lancet valve gear, including the first needle and first piston component, the first needle top and first piston group
Part is connected, and bottom extends in first jet the control for carrying out the first Jiao Kou；
Second glue lancet valve gear, including the second needle and second piston component, the second needle top and second piston group
Part is connected, and bottom extends in second nozzle the control for carrying out the second Jiao Kou；
First solenoid valve carries out piping connection with first piston component, controls the piston motion of first piston component, driving first
Needle carries out the unlatching and closure of the first Jiao Kou；
Second solenoid valve carries out piping connection with second piston component, controls the piston motion of second piston component, driving second
Needle carries out the unlatching and closure of the second Jiao Kou；
Throttle valve is arranged on gas exhaust piping when second piston component rises；
Control unit, including timing device, respectively with the first solenoid valve and second solenoid valve linearly connected, control the first solenoid valve and
The movement of second solenoid valve.
2. injection mold glue mouth needle control device according to claim 1, which is characterized in that the first piston component
Including the first cylinder and first piston, the first piston is arranged in the first cylinder and is divided into the cavity of the first cylinder and is located at
The first cavity and the second cavity above and below first piston are provided on first solenoid valve and are connected with the first cavity
The first pipeline connect and the second pipeline being connected with the second cavity.
3. injection mold glue mouth needle control device according to claim 1, which is characterized in that the second piston component
Including the second cylinder and second piston, the second piston is arranged in the second cylinder and is divided into the cavity of the second cylinder and is located at
Third cavity and the 4th cavity above and below second piston are provided in the second solenoid valve and are connected with third cavity
The third pipeline connect and the 4th pipeline being connected with the 4th cavity.
4. injection mold glue mouth needle control device according to claim 3, which is characterized in that the throttle valve setting exists
On third pipeline, the check-valves in parallel with throttle valve is provided on the third pipeline.
5. injection mold glue mouth needle control device according to claim 3, which is characterized in that in the second solenoid valve
It is connected with downstream side air discharge duct road corresponding with third pipeline, the throttle valve is arranged on downstream side air discharge duct road
On.
6. injection mold glue mouth needle control device according to claim 3, which is characterized in that the throttle valve setting exists
On the passing away of second solenoid valve.
7. according to injection mold glue mouth needle control device described in claim 4,5 or 6, which is characterized in that further include pressure
Contracting air auxiliary piping, the compressed air auxiliary piping are connected with third pipeline or downstream side air discharge duct road, institute
It states and is provided with pilot solenoid valve and pressure reducing valve on compressed air auxiliary piping, the pilot solenoid valve linearly connects with control unit
It connects.
8. injection mold glue mouth needle control device according to claim 1, which is characterized in that second needle includes
Guide rod and stick harness, the bottom end of the guide rod are provided with frustum, and the stick harness is arranged concentrically on the lower section of frustum, the stick harness it is straight
Diameter is less than the diameter of guide rod.
9. injection mold glue mouth needle control device according to claim 8, which is characterized in that in the second nozzle
Resin channels include lower end straight hole channel and Upper passage, are provided with above lower end straight hole channel and connect at the top of Upper passage
The taper hole shape channel expanded upwards connect.
10. injection mold glue mouth needle control device according to claim 9, which is characterized in that under the guide rod outer circle
Portion's indent is provided with planar slot, and the resin fine channel of a fixed spacing, the plug are formed between planar slot and lower end straight hole channel
When the lower end of column is located at the upper end of the second Jiao Kou, the upper end in the top and bottom straight hole channel of planar slot is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329211.4A CN109159381A (en) | 2018-11-09 | 2018-11-09 | A kind of injection mold glue mouth needle control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329211.4A CN109159381A (en) | 2018-11-09 | 2018-11-09 | A kind of injection mold glue mouth needle control device |
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|---|---|
| CN109159381A true CN109159381A (en) | 2019-01-08 |
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| CN201811329211.4A Pending CN109159381A (en) | 2018-11-09 | 2018-11-09 | A kind of injection mold glue mouth needle control device |
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