CN108340535A - A kind of large capacity rubber injection machine - Google Patents
A kind of large capacity rubber injection machine Download PDFInfo
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- CN108340535A CN108340535A CN201810331044.0A CN201810331044A CN108340535A CN 108340535 A CN108340535 A CN 108340535A CN 201810331044 A CN201810331044 A CN 201810331044A CN 108340535 A CN108340535 A CN 108340535A
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- China
- Prior art keywords
- injection
- feed screw
- screw extruder
- barrel
- cold feed
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/03—Injection moulding apparatus
- B29C45/13—Injection moulding apparatus using two or more injection units co-operating with a single mould
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to Development of Rubber Injection Molding Technology fields, more particularly to a kind of large capacity rubber injection machine, including injection seat, injection seat is equipped with injection hydraulic cylinder, the cylinder body for injecting hydraulic cylinder connects barrel, barrel connects injection-tube, and the side of barrel is connected with the first cold feed screw extruder, the second cold feed screw extruder is connected on injection-tube.Large capacity rubber injection machine provided by the invention is when carrying out large capacity rubber injection, sizing material is first injected into mould cavity using the second cold feed screw extruder, the first cold feed screw extruder is reused to feed into barrel, sizing material is under the immense pressure effect of injection hydraulic cylinder in barrel, injection enters in die cavity, realize large capacity rubber injection, meet existing large capacity rubber injection demand, it is simple in structure, it can be improved on the basis of existing rubber injection machine, difficulty of processing is low, at low cost.
Description
Technical field
The invention belongs to Development of Rubber Injection Molding Technology field more particularly to a kind of large capacity rubber injection machines.
Background technology
Rubber raw materials large viscosity, is not easy to inject poor fluidity, and easy incipient scorch when high temperature, therefore is with vulcanizing press
Main compression molding method is in rubber product production always in occupation of leading position.With industries such as automobile, aerospace, electron electric powers
Fast development, to the technical performance of rubber product, production cost and output efficiency, more stringent requirements are proposed, traditional mould
Molded technology has been difficult to meet this development trend in market.And Development of Rubber Injection Molding Technology is due to the quick sulphur of sizing material high temperature
Change, shorten the production cycle, it is easier to ensure that rubber product vulcanizes uniformity；And the precise forming in Guan Bi mould, Ke Yixian
It writes ground and reduces glue side, utilization rate of raw materials and the percentage of A-class goods are high；And sizing material is in a mold by constant injection pressure sulfidization molding, system
Product compactness is good, and geometric dimension is accurate, and physical and chemical performance is good；It is easy to operate, the degree of automation is high etc., and other methods of forming can not
The advantages of replacement, is promoted and applied rapidly, is the developing direction of rubber cast product.
In recent years, with the fast development of modern technologies, higher want is proposed to rubber product quality and complexity
It asks.And demand of the market to large-scale rubber product also increases significantly, existing constant volume injection device on the market exposes its note
The shortcomings that capacity pressure penetrated has certain limitations, after injecting a certain amount of rubber, the injection pressure needed can be quite big, in addition needs
When wanting large capacity rubber injection, such as more than 100000cc just mutually in requisition for quite huge equipment, device fabrication difficulty is big, at
This height.
Invention content
It is an object of the invention to overcome above-mentioned technical deficiency, a kind of large capacity rubber injection machine is provided, can be carried out big
Volume rubber is injection moulded, and device structure is compact, small, and solves the problems, such as that large capacity rubber injection pressure is big.
To reach above-mentioned technical purpose, the present invention provides a kind of large capacity rubber injection machine, including injection seat, the injection
Seat is equipped with injection hydraulic cylinder, and the cylinder body of the injection hydraulic cylinder connects barrel, and the barrel connects injection-tube, the material
The side of cylinder is connected with the first cold feed screw extruder, and the second cold feed screw extruder, institute are connected on the injection-tube
It states and is equipped between the discharge port and the barrel of the first cold feed screw extruder for sizing material from the first cold feed screw extruder
Into the barrel unidirectionally by check valve, between the discharge port and the injection-tube of the second cold feed screw extruder
Equipped with for sizing material from the second cold feed screw extruder to the injection-tube unidirectionally by check valve.
As an improvement the draw ratio of the first cold feed screw extruder is squeezed more than the described second cold feed screw
Go out the draw ratio of machine.
As a further improvement, the draw ratio of the first cold feed screw extruder is 15:1, the second cold feeding spiral shell
The draw ratio of bar extruder is 12:1.
As a further improvement, the injection direction of the first cold feed screw extruder hangs down with the barrel side wall
Directly.
As a further improvement, the axial direction of the injection direction and the injection-tube of the second cold feed screw extruder
Tilt intersection.
As a further improvement, the axial direction of the injection direction and the injection-tube of the second cold feed screw extruder
Intersection is tilted, the angle of cut is less than 75 degree.
As a further improvement, the barrel and injection-tube are barrel and the injection by 38crmoal alloy steel makings
Pipe, the barrel and injection-tube are externally provided with heating agent circulating sleeve.
As a further improvement, the injection-tube is equipped with injection nozzle, the injection with the matched one end of mould gate
The aperture of mouth is 12-25mm.
Due to the adoption of the above technical scheme, the beneficial effects of the invention are as follows：
Large capacity rubber injection machine provided by the invention, including the first cold feed screw extruder, the second cold feed screw
Extruder and injection hydraulic cylinder first use the second cold feed screw extruder to mold when carrying out large capacity rubber injection
Mould intracavitary administration sizing material, since mould cavity space is big at this time, inject needed for pressure it is small, can injection sizing material as much as possible, directly
When cannot be injected by the second cold feed screw extruder, the first cold feeding spiral shell is run at this time to required larger injection pressure
Bar extruder feeds into barrel, and feeding quantity is that feeding quantity is always needed to subtract the doses that the second cold feed screw extruder has added,
These sizing materials are all added in barrel, under the immense pressure effect of injection hydraulic cylinder, material injection in barrel is entered
Into die cavity, large capacity rubber injection may be implemented in feeding operation in two steps in this way, meets existing large capacity rubber injection demand.
Large capacity rubber injection machine provided by the invention is simple in structure, can be carried out on the basis of existing rubber injection machine
It improves, difficulty of processing is low, at low cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
In attached drawing, 1- injection seats, 2- injects hydraulic cylinder, 3- barrels, 4- injection-tubes, the first cold feed screws of 5- extrusion
Machine, the second cold feed screw extruders of 6-, 7- check valves.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, a kind of large capacity rubber injection machine, including injection seat 1, injection seat 1 are equipped with injection hydraulic cylinder
2, the cylinder body of injection hydraulic cylinder 2 connects barrel 3, and barrel 3 connects injection-tube 4, and the side of barrel 3 is connected with the first cold feeding spiral shell
Bar extruder 5 is connected with the second cold feed screw extruder 6, the discharge port of the first cold feed screw extruder 5 on injection-tube 4
Between barrel 3 be equipped with for sizing material from the first cold feed screw extruder 5 into barrel 3 unidirectionally by check valve 7, second is cold
It is equipped with for sizing material from the second cold feed screw extruder 6 to injection-tube between the discharge port and injection-tube 4 of feed screw extruder 6
4 unidirectionally by check valve 7.
In the present embodiment, 5 and second cold feed screw extruder 6 of the first cold feed screw extruder is by pan feeding screw rod, spiral shell
The compositions such as rod set, coolant jacket, check valve 7, axis joint chair, hydraulic motor and connecting flange have certain compression ratio, for it is equidistant not
Deng deep structure, handled using 38crmoal alloys steel making and via nitride.There is heating agent cyclic water jacket for controlling outside screw sleeve
Extruder temperature, the draw ratio of the first cold feed screw extruder 5 are more than the draw ratio of the second cold feed screw extruder 6, specifically
The draw ratio on ground, the first cold feed screw extruder 5 generally uses 15:1, the draw ratio of 6 extruder of the second cold feed screw is adopted
With 12:1.
In the present embodiment, the injection direction of the first cold feed screw extruder 5 is vertical with 3 side wall of barrel, the second cold feeding
The injection direction of screw extruder 6 and the axially inclined intersection of injection-tube 4, it is preferable that the note of the second cold feed screw extruder 6
It penetrates direction and the angle of cut of the axially inclined intersection of injection-tube 4 is less than 75 degree.
In the present embodiment, barrel 3 and injection-tube 4 are the barrel 3 and injection-tube 4 by 38crmoal alloy steel makings, can be with
High pressure is born, anti-spalling is good, and wearability is good, and barrel 3 and injection-tube 4 are externally provided with heating agent circulating sleeve, to control 3 He of barrel
The temperature of injection-tube 4.
In the present embodiment, injection-tube 4 is equipped with injection nozzle with the matched one end of mould gate, specifically as shown in the picture,
Injection nozzle is extend into mould cavity, and injection nozzle plays an important role to injection molding quality, the sizing material in barrel 3, suitable
It is acted on by shearing force quickly through when injection nozzle under big pressure, sizing material is made to heat up, single stage plastication of going forward side by side becomes glutinous stream
State helps to improve mobility of the sizing material in die cavity, shortens vulcanization time, the injection mouth meeting small relative to injection rate diameter
High sizing material temperature is generated, for large-capacity glue injection capsule machine, injection rate is generally 300-500ml/s, and injection nozzle aperture is
10-25mm。
Large capacity rubber injection machine provided by the invention first uses the second cold feeding when carrying out large capacity rubber injection
Screw extruder 6 injects sizing material into mould cavity, and since mould cavity space is big at this time, pressure is small needed for injection, and can use up can
Injection sizing material more than energy, when required larger injection pressure cannot be injected by the second cold feed screw extruder 6, this
The first cold feed screw extruders 5 of Shi Yunhang feed into barrel 3, and feeding quantity is that feeding quantity is always needed to subtract the second cold feeding spiral shell
These sizing materials are all added in barrel 3 by the doses that bar extruder 6 has added, in the immense pressure effect of injection hydraulic cylinder 2
Under, material injection in barrel 3 is entered in die cavity, large capacity rubber injection may be implemented in feeding operation in two steps in this way, full
The existing large capacity rubber injection demand of foot.
Large capacity rubber injection machine provided by the invention is simple in structure, can be carried out on the basis of existing rubber injection machine
It improves, difficulty of processing is low, at low cost.
The specific implementation mode of present invention described above, is not intended to limit the scope of the present invention..Any basis
The various other corresponding changes and deformation that the technical concept of the present invention is made, should be included in the guarantor of the claims in the present invention
It protects in range.
Claims (8)
1. a kind of large capacity rubber injection machine, which is characterized in that including injection seat, the injection seat is equipped with injection hydraulic oil
The cylinder body of cylinder, the injection hydraulic cylinder connects barrel, and the barrel connects injection-tube, and the side of the barrel is connected with first
Cold feed screw extruder, the second cold feed screw extruder is connected on the injection-tube, and the first cold feed screw squeezes
Go out to be equipped between the discharge port of machine and the barrel and unidirectionally lead into the barrel from the first cold feed screw extruder for sizing material
The check valve crossed is equipped with cold from second for sizing material between the discharge port and the injection-tube of the second cold feed screw extruder
Feed screw extruder to the injection-tube unidirectionally by check valve.
2. large capacity rubber injection machine according to claim 1, which is characterized in that the first cold feed screw extruder
Draw ratio be more than the described second cold feed screw extruder draw ratio.
3. large capacity rubber injection machine according to claim 2, which is characterized in that the first cold feed screw extruder
Draw ratio be 15:1, the draw ratio of the second cold feed screw extruder is 12:1.
4. large capacity rubber injection machine according to claim 1, which is characterized in that the first cold feed screw extruder
Injection direction it is vertical with the barrel side wall.
5. large capacity rubber injection machine according to claim 1, which is characterized in that the second cold feed screw extruder
Injection direction and the injection-tube axially inclined intersection.
6. large capacity rubber injection machine according to claim 1, which is characterized in that the second cold feed screw extruder
Injection direction and the injection-tube axially inclined intersection, the angle of cut be less than 75 degree.
7. large capacity rubber injection machine according to claim 1, which is characterized in that the barrel and injection-tube are served as reasons
The barrel and injection-tube of 38crmoal alloy steel makings, the barrel and injection-tube are externally provided with heating agent circulating sleeve.
8. large capacity rubber injection machine according to claim 1, which is characterized in that the injection-tube matches with mould gate
One end of conjunction is equipped with injection nozzle, and the aperture of the injection nozzle is 12-25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810331044.0A CN108340535A (en) | 2018-04-13 | 2018-04-13 | A kind of large capacity rubber injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810331044.0A CN108340535A (en) | 2018-04-13 | 2018-04-13 | A kind of large capacity rubber injection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108340535A true CN108340535A (en) | 2018-07-31 |
Family
ID=62954949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810331044.0A Pending CN108340535A (en) | 2018-04-13 | 2018-04-13 | A kind of large capacity rubber injection machine |
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| Country | Link |
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| CN (1) | CN108340535A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09104029A (en) * | 1995-10-12 | 1997-04-22 | Kobe Steel Ltd | Injection molding machine for composite molding with long fiber-reinforced thermoplastic resin as core material |
| JPH1015990A (en) * | 1996-06-28 | 1998-01-20 | Ube Ind Ltd | Molding of injection-molded product using sandwich molding machine |
| JPH11207777A (en) * | 1998-01-23 | 1999-08-03 | Ube Ind Ltd | Method and device for setting molding condition for resin multilayer molding |
| KR100822127B1 (en) * | 2004-06-30 | 2008-04-15 | 허스키 인젝션 몰딩 시스템즈 리미티드 | Apparatus and method for actuation of injection molding shooting pots |
| CN102275274A (en) * | 2011-05-15 | 2011-12-14 | 东华机械有限公司 | Injection mechanism with ultrahigh injection volume and squeezing molding technology of ultra-large plastic products |
| JP2014087986A (en) * | 2012-10-30 | 2014-05-15 | Meiki Co Ltd | Apparatus and method for injection molding of resin material containing fiber material |
-
2018
- 2018-04-13 CN CN201810331044.0A patent/CN108340535A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09104029A (en) * | 1995-10-12 | 1997-04-22 | Kobe Steel Ltd | Injection molding machine for composite molding with long fiber-reinforced thermoplastic resin as core material |
| JPH1015990A (en) * | 1996-06-28 | 1998-01-20 | Ube Ind Ltd | Molding of injection-molded product using sandwich molding machine |
| JPH11207777A (en) * | 1998-01-23 | 1999-08-03 | Ube Ind Ltd | Method and device for setting molding condition for resin multilayer molding |
| KR100822127B1 (en) * | 2004-06-30 | 2008-04-15 | 허스키 인젝션 몰딩 시스템즈 리미티드 | Apparatus and method for actuation of injection molding shooting pots |
| CN102275274A (en) * | 2011-05-15 | 2011-12-14 | 东华机械有限公司 | Injection mechanism with ultrahigh injection volume and squeezing molding technology of ultra-large plastic products |
| JP2014087986A (en) * | 2012-10-30 | 2014-05-15 | Meiki Co Ltd | Apparatus and method for injection molding of resin material containing fiber material |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180731 |
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| RJ01 | Rejection of invention patent application after publication |