CN106564171B - A kind of screw rod gun barrel - Google Patents
A kind of screw rod gun barrel Download PDFInfo
- Publication number
- CN106564171B CN106564171B CN201610958238.4A CN201610958238A CN106564171B CN 106564171 B CN106564171 B CN 106564171B CN 201610958238 A CN201610958238 A CN 201610958238A CN 106564171 B CN106564171 B CN 106564171B
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- CN
- China
- Prior art keywords
- screw rod
- needle
- gun barrel
- nozzle
- raw material
- 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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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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/60—Screws
-
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/62—Barrels or cylinders
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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
- B29C45/20—Injection 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
- B29C45/20—Injection nozzles
- B29C45/23—Feed stopping equipment
- B29C45/231—Needle valve systems 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
- B29C45/72—Heating or cooling
- B29C45/74—Heating or cooling of the injection unit
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Coating Apparatus (AREA)
Abstract
The invention discloses a kind of screw rod gun barrels, for liquid silica gel injection molding technology field, including gun barrel cylinder barrel and screw rod, screw rod chamber is equipped in gun barrel cylinder barrel, it is intracavitary that screw rod is mounted on screw rod, the front end of screw rod chamber is equipped with material outlet, the rear end side wall of screw rod chamber is equipped with feed(raw material)inlet, screw rod has helical tooth, screw rod can be rotated about axis or be moved back and forth in the axial direction screw rod is intracavitary, helical tooth is bonded transmission with the inner wall of screw rod chamber, screw rod includes mixing section, helical tooth transport screw is arranged in mixing section, several spiral-distributed mixing salient points are formed by opening up reversed helicla flute on the helical tooth of mixing section.Mixing section is that mixing salient point is generated using forward-reverse spiral line cross arrangement in the present invention, salient point is mixed in screw rod rotation process, and stirring action is generated to raw material, the mixed effect of raw material has been fully ensured that in this way, and screw rod mixing salient point of mixing section when rotation can generate thrust, raw material is fed forward, raw material incorporation time is shortened.
Description
Technical field
The present invention is used for liquid silica gel injection molding technology field, more particularly to a kind of screw rod gun barrel.
Background technique
Being generally used for the gun barrel that fluid silicone rubber injection (mo(u)lding) machine uses has screw gun barrel and two kinds of direct press type gun barrel, spiral shell
Power part of the rod-type gun barrel using screw rod as conveying sizing material can tentatively complete mixing work, still while conveying
The common screw rod gun barrel problem not uniform enough generally there are mixing, causes the product material produced, color variant.
Summary of the invention
To solve the above problems, the present invention provides a kind of screw rod gun barrel that can fully ensure that raw material mixed effect.
The technical solution adopted by the present invention to solve the technical problems is: a kind of screw rod gun barrel, including gun barrel cylinder barrel and spiral shell
Bar, is equipped with screw rod chamber in gun barrel cylinder barrel, and screw rod is mounted on that screw rod is intracavitary, and the front end of screw rod chamber is equipped with material outlet, screw rod chamber
Rear end side wall is equipped with feed(raw material)inlet, and screw rod has a helical tooth, and screw rod can be rotated about axis or in the axial direction screw rod is intracavitary
It moves back and forth, helical tooth is bonded transmission with the inner wall of screw rod chamber, and the screw rod includes mixing section, helical tooth forward direction spiral shell in mixing section
Rotation setting, forms several spiral-distributed mixing salient points by opening up reversed helicla flute on the helical tooth of mixing section.
It is further used as the improvement of technical solution of the present invention, and the screw rod further includes tail portion spiral section, tail portion spiral section tool
The helical tooth for thering is transport screw to be arranged.
It is further used as the improvement of technical solution of the present invention, and the screw pitch of tail portion spiral section helical tooth is greater than mixing section helical tooth
Screw pitch.
It is further used as the improvement of technical solution of the present invention, and the annular water of wrapping screw rod chamber is equipped in the gun barrel cylinder barrel
Chamber, annular water chamber is equipped with cooling water access aperture on the barrel of gun barrel cylinder barrel and cooling water picks out hole.
It is further used as the improvement of technical solution of the present invention, further includes the spray that gun barrel cylinder barrel front end is mounted on by link block
Mouth, the link block are equipped with the bellmouth of face material outlet, and the front end of the screw rod is equipped with openable or closing bellmouth
Self-closing tip.
It is further used as the improvement of technical solution of the present invention, and the nozzle includes nozzle, needle and needle driving mechanism, institute
It states and is equipped with nozzle inner cavity inside nozzle, nozzle front end is equipped with nozzle hole, and conducting nozzle inner cavity and bellmouth are equipped with inside needle
The front end in channel, needle is equipped with tip, and needle driving mechanism can drive the needle to move back and forth and pass through the tip and open
Or close the nozzle hole.
It is further used as the improvement of technical solution of the present invention, and the needle includes syringe needle and needle body, and syringe needle is located at needle body
Front end, the sectional dimension of the syringe needle are less than the sectional dimension of needle body, the connection intermediate location formation shoulder of syringe needle and needle body, needle
The channel in internal portion forms several via holes in shoulder.
It is further used as the improvement of technical solution of the present invention, and the needle driving mechanism includes being located between nozzle and link block
Injecting glue air valve body, be equipped with plunger shaft in the injecting glue air valve body, the needle body of needle passes through the plunger shaft, in piston on needle body
Intracavitary to be equipped with piston, plunger shaft forms ante-chamber and back cavity in the front and rear sides of piston, and injecting glue air valve body is equipped with and is connected with ante-chamber
Injecting glue air valve open hole and the injecting glue air valve that is connected with back cavity close hole.
It is further used as the improvement of technical solution of the present invention, is equipped with cooling jacket on the outside of the nozzle, inside cooling jacket
With the water cavity for wrapping nozzle, the external cooling-water duct of water cavity.
It is further used as the improvement of technical solution of the present invention, check valve is equipped at feed(raw material)inlet, the rear end of gun barrel cylinder barrel is set
There are gun barrel installation nut and gun barrel cylinder barrel end cap.
Beneficial effects of the present invention: screw rod has mixing section in the present invention, and mixing section is to intersect row using forward-reverse spiral line
Cloth generates mixing salient point, and mixing salient point generates stirring action to raw material in screw rod rotation process, has fully ensured that raw material in this way
Mixed effect, and screw rod mixing salient point of mixing section when rotation can generate thrust, and raw material is fed forward, is contracted
Short raw material incorporation time, solves the problems, such as that mixing is not uniform enough, fully ensures that raw material mixed effect.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is schematic structural view of the invention；
Fig. 2 is mixing section structural schematic diagram of the present invention；
Fig. 3 is nozzle arrangements schematic diagram of the present invention.
Specific embodiment
Referring to figs. 1 to Fig. 3, that show the specific structures of the preferred embodiments of the invention.It will be detailed below this
Invent the design feature of each element, and when if there is being described to direction (upper and lower, left and right, before and after), it is with shown in FIG. 1
Structure is reference description, but actual use direction of the invention is not limited thereto.
The present invention provides a kind of screw rod gun barrel, referring to Fig. 1, Fig. 2, including gun barrel cylinder barrel 1 and screw rod 2, in gun barrel cylinder barrel 1
Equipped with screw rod chamber, screw rod 2 is mounted on that screw rod is intracavitary, and the front end of screw rod chamber is equipped with material outlet, sets on the rear end side wall of screw rod chamber
There is feed(raw material)inlet 11, check valve is equipped at feed(raw material)inlet 11, the rear end of gun barrel cylinder barrel 1 is equipped with gun barrel installation nut 12 and gun barrel cylinder
Cylinder end cap 13.Screw rod 2 has a helical tooth, and screw rod can be rotated about axis or be moved back and forth in the axial direction, spiral screw rod is intracavitary
Tooth is bonded transmission with the inner wall of screw rod chamber, and the screw rod 2 includes mixing section 21, helical tooth transport screw setting in mixing section 21,
Several spiral-distributed mixing salient points 22 are formed by opening up reversed helicla flute on the helical tooth of mixing section 21.It further include leading to
The nozzle that link block 5 is mounted on 1 front end of gun barrel cylinder barrel is crossed, the link block 5 is equipped with the bellmouth of face material outlet, described
The front end of screw rod 2 is equipped with self-closing tip 23 that is openable or closing bellmouth.When the invention works, raw material passes through external feed
System is inputted from feed(raw material)inlet 11, check valve is equipped at feed(raw material)inlet 11, so that raw material, which can only input, is unable to reflux.Outside rotation
Turning power drives screw rod 2 to rotate, and raw material, which enters under the promotion of 2 helical tooth of screw rod by mixing section 21, to be fed forward into gun barrel cylinder
Cylinder 1, nozzle, and lead-screw 2 retreats, and stops charge motion after backing to setting position.After cylinder barrel fills it up with material, external thrust
Lead-screw, which advances, to be injected the sizing material inside gun barrel cylinder barrel to come.
Screw rod 2 has mixing section 21 in the present invention, and mixing section 21 is convex using the generation mixing of forward-reverse spiral line cross arrangement
22 are put, mixing salient point 22 generates stirring action to raw material in 2 rotation process of screw rod, has fully ensured that the mixing effect of raw material in this way
Fruit, and the mixing salient point 22 of mixing section when rotation of screw rod 2 can generate thrust, and raw material is fed forward, is shortened
Raw material incorporation time solves the problems, such as that mixing is not uniform enough, fully ensures that raw material mixed effect.
The screw rod 2 further includes tail portion spiral section 24, and tail portion spiral section 24 is located at the rear end of mixing section 21, tail portion spiral section
24 helical tooths with transport screw setting.The screw pitch of tail portion spiral section helical tooth is greater than the screw pitch of mixing section helical tooth, tail portion
Spiral section is responsible for raw material is quick, enough feeding mixing section 21.
Since heat can be generated when helical screw agitator raw material, gun barrel cylinder barrel 1 is caused to generate heat.In order to reduce gun barrel cylinder barrel 1
Temperature, the annular water chamber 14 of wrapping screw rod chamber, barrel of the annular water chamber 14 in gun barrel cylinder barrel 1 are equipped in the gun barrel cylinder barrel 1
It is equipped with cooling water access aperture 15 and cooling water picks out hole 16.Cooling water by cooling water access aperture 15, cooling water pick out hole 16 into
Enter inside gun barrel cylinder barrel 1, the temperature of gun barrel cylinder barrel 1 is reduced by the circulation of cooling water.
Referring to Fig. 3, the nozzle of this screw rod gun barrel is accurate nozzle, i.e., the described nozzle includes that nozzle 3, needle 4 and needle drive
Motivation structure, nozzle inner cavity 31 is equipped with inside the nozzle 3, and 3 front end of nozzle is equipped with nozzle hole 32, is equipped with conducting inside needle 4 and penetrates
Mouth inner cavity 31 and the channel of bellmouth 41, the front end of needle 4 are equipped with tip, and needle driving mechanism can drive the needle 4 reciprocal
It moves through the tip and opens or closes the nozzle hole 32.After gun barrel cylinder barrel 1 fills it up with material, external thrust lead-screw
2, which advance, injects the sizing material inside gun barrel cylinder barrel 1 to come.Needle driving mechanism pushes needle 4 to retreat at the same time, nozzle hole 32
It opens, sizing material is by nozzle injection to mold.Screw rod 2 completes injecting glue movement, valve after injecting the sizing material of setting completely
Needle drive mechanism makes needle 4 advance, and nozzle hole 32 is closed, and injecting glue movement is completed.In above-mentioned precision nozzle, raw material passes through needle
4 inner passages enter nozzle 3, and the raw material inside nozzle 3 communicates always with the raw material of bellmouth, and no matter needle 4 is to open in this way
Or close, the raw material inside nozzle 3 is all full material state, guarantees the accuracy of injecting glue amount.It is dynamic that injecting glue is executed by screw rod gun barrel
Make, accurate glue amount is injected into in-mold molding, completes the work of precise injection.
Wherein, according to the function of needle each section, the needle 4 includes syringe needle 42 and needle body 43, and syringe needle 42 is located at needle body
43 front end, the sectional dimension of the syringe needle 42 are less than the sectional dimension of needle body 43, the connection transition part of syringe needle 42 and needle body 43
Position forms shoulder, and the channel 41 inside needle body 43 forms several via holes 44 in shoulder, and raw material can be when needle 4 be acted by channel
41 and via hole 44 flowed freely between nozzle inner cavity 31 and bellmouth.
As a preferred embodiment of the present invention, the needle driving mechanism includes the note being located between nozzle 3 and link block 5
Glue air valve body 6, the injecting glue air valve body 6 is interior to be equipped with plunger shaft 61, and 61 rear end of plunger shaft is equipped with valve body end cap 62, the needle of needle 4
Body 43 is in being equipped with piston 63 in the plunger shaft 61, needle body 43 in plunger shaft 61, plunger shaft 61 is in the front and back of piston 63 two
Side forms ante-chamber and back cavity, and injecting glue air valve body 6 is equipped with the injecting glue air valve open hole 64 be connected with ante-chamber and is connected with back cavity
Injecting glue air valve closes hole 65.Air pressure is entered inside ante-chamber by injecting glue air valve open hole 64, pushes needle 4 to retreat, nozzle hole 32
It opens；Air pressure is closed hole 65 by injecting glue air valve and is entered inside back cavity, so that needle 4 advances, nozzle hole 32 is closed.
For raw material in nozzle hole 32 by thermocoagulation, this nozzle 3 devises cooling structure in order to prevent, sets on the outside of the nozzle
There is cooling jacket 7, there is the water cavity for wrapping nozzle 3 inside cooling jacket 7.Pass through the temperature of the cycle down grazing shot mouth 3 of cooling water
Degree.
Certainly, the invention is not limited to above embodiment, and those skilled in the art are without prejudice to originally
Equivalent deformation or replacement can be also made under the premise of spirit, these equivalent variation or replacement are all contained in the application right
It is required that in limited range.
Claims (8)
1. a kind of screw rod gun barrel, it is characterised in that: including gun barrel cylinder barrel and screw rod, screw rod chamber, screw rod peace are equipped in gun barrel cylinder barrel
Intracavitary mounted in screw rod, the front end of screw rod chamber is equipped with material outlet, is equipped with check valve at feed(raw material)inlet, on the rear end side wall of screw rod chamber
Equipped with feed(raw material)inlet, screw rod has a helical tooth, and screw rod can be rotated about axis or be moved back and forth in the axial direction, spiral shell screw rod is intracavitary
Rotation tooth is bonded transmission with the inner wall of screw rod chamber, and the screw rod includes mixing section, and helical tooth transport screw is arranged in mixing section, mixed
It refines and forms several spiral-distributed mixing salient points by opening up reversed helicla flute on the helical tooth of section, further include passing through link block
It is mounted on the nozzle of gun barrel cylinder barrel front end, the link block is equipped with the bellmouth of face material outlet, the front end of the screw rod
Equipped with openable or close the self-closing tip of bellmouth, the nozzle includes nozzle, needle and needle driving mechanism, described to penetrate
Nozzle inner cavity is equipped with inside mouth, nozzle front end is equipped with nozzle hole, the channel of conducting nozzle inner cavity and bellmouth is equipped with inside needle,
The front end of needle is equipped with tip, and needle driving mechanism can drive the needle to move back and forth and pass through the tip and open or close
The nozzle hole.
2. screw rod gun barrel according to claim 1, it is characterised in that: the screw rod further includes tail portion spiral section, tail portion spiral shell
Revolve the helical tooth that section has transport screw setting.
3. screw rod gun barrel according to claim 2, it is characterised in that: the screw pitch of tail portion spiral section helical tooth is greater than mixing section
The screw pitch of helical tooth.
4. screw rod gun barrel according to claim 1, it is characterised in that: be equipped with the ring of wrapping screw rod chamber in the gun barrel cylinder barrel
Shape water cavity, annular water chamber is equipped with cooling water access aperture on the barrel of gun barrel cylinder barrel and cooling water picks out hole.
5. screw rod gun barrel according to claim 1, it is characterised in that: the needle includes syringe needle and needle body, and syringe needle is located at
The front end of needle body, the sectional dimension of the syringe needle are less than the sectional dimension of needle body, and the connection intermediate location of syringe needle and needle body is formed
Shoulder, the channel inside needle body form several via holes in shoulder.
6. screw rod gun barrel according to claim 5, it is characterised in that: the needle driving mechanism includes being located at nozzle and company
The injecting glue air valve body between block is connect, plunger shaft is equipped in the injecting glue air valve body, the needle body of needle is in the plunger shaft, needle body
In being equipped with piston in plunger shaft, plunger shaft forms ante-chamber and back cavity in the front and rear sides of piston, injecting glue air valve body be equipped with it is preceding
The injecting glue air valve open hole of chamber conducting and the injecting glue air valve be connected with back cavity close hole.
7. screw rod gun barrel according to claim 5, it is characterised in that: be equipped with cooling jacket, cooling water on the outside of the nozzle
Set is internal to have the water cavity for wrapping nozzle, the external cooling-water duct of water cavity.
8. screw rod gun barrel according to claim 1, it is characterised in that: the rear end of gun barrel cylinder barrel be equipped with gun barrel installation nut and
Gun barrel cylinder barrel end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610958238.4A CN106564171B (en) | 2016-11-03 | 2016-11-03 | A kind of screw rod gun barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610958238.4A CN106564171B (en) | 2016-11-03 | 2016-11-03 | A kind of screw rod gun barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106564171A CN106564171A (en) | 2017-04-19 |
| CN106564171B true CN106564171B (en) | 2018-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610958238.4A Active CN106564171B (en) | 2016-11-03 | 2016-11-03 | A kind of screw rod gun barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106564171B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527772B (en) * | 2018-06-14 | 2024-02-13 | 苏州好特斯模具有限公司 | Elastic sealing glue color changing device |
| CN114483383B (en) * | 2022-01-28 | 2023-07-21 | 刘义亭 | Gaseous fuel injector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380798A (en) * | 2008-10-16 | 2009-03-11 | 吉林大学珠海学院 | Micropore injection molding apparatus |
| CN102126274A (en) * | 2011-04-19 | 2011-07-20 | 北京化工大学 | Micro-foaming injection-molding screw rod |
| WO2014155409A1 (en) * | 2013-03-25 | 2014-10-02 | 三菱重工プラスチックテクノロジー株式会社 | Injection molding method and injection molding device |
| CN104309080A (en) * | 2014-11-07 | 2015-01-28 | 山东大学 | Threaded rod for polymer microcellular foaming injection molding |
| CN206170580U (en) * | 2016-11-03 | 2017-05-17 | 广州天沅硅胶机械科技有限公司 | Injecting glue screw rod barrel |
-
2016
- 2016-11-03 CN CN201610958238.4A patent/CN106564171B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380798A (en) * | 2008-10-16 | 2009-03-11 | 吉林大学珠海学院 | Micropore injection molding apparatus |
| CN102126274A (en) * | 2011-04-19 | 2011-07-20 | 北京化工大学 | Micro-foaming injection-molding screw rod |
| WO2014155409A1 (en) * | 2013-03-25 | 2014-10-02 | 三菱重工プラスチックテクノロジー株式会社 | Injection molding method and injection molding device |
| CN104309080A (en) * | 2014-11-07 | 2015-01-28 | 山东大学 | Threaded rod for polymer microcellular foaming injection molding |
| CN206170580U (en) * | 2016-11-03 | 2017-05-17 | 广州天沅硅胶机械科技有限公司 | Injecting glue screw rod barrel |
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| Publication number | Publication date |
|---|---|
| CN106564171A (en) | 2017-04-19 |
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