CN104859119A - High-pressure injection module for ordinary hydraulic injection molding machines - Google Patents
High-pressure injection module for ordinary hydraulic injection molding machines Download PDFInfo
- Publication number
- CN104859119A CN104859119A CN201510246481.9A CN201510246481A CN104859119A CN 104859119 A CN104859119 A CN 104859119A CN 201510246481 A CN201510246481 A CN 201510246481A CN 104859119 A CN104859119 A CN 104859119A
- Authority
- CN
- China
- Prior art keywords
- injection
- piston
- injection molding
- hydraulic
- pressurization
- 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.)
- Pending
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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
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
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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
- 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
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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
- 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
- B29C2945/76655—Location of control
- B29C2945/76658—Injection unit
- B29C2945/76682—Injection unit injection piston cylinder
-
- 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
- B29C2945/76822—Phase or stage of control
- B29C2945/76859—Injection
Abstract
The invention provides a high-pressure injection module for ordinary hydraulic injection molding machines, and belongs to the field of technical innovation of injection molding machines. The high-pressure injection module comprises a pressurization hydraulic cylinder and a control oil way. The pressurization hydraulic cylinder is composed of an end cover, a pressurization cylinder body, a pressurization piston, a pressurization piston rod, a connection flange and the like. The high-pressure injection module is connected with a cylinder body of an existing injection molding machine glue jetting hydraulic cylinder in series through pull rod screws penetrating through the end cover and the connection flange. One end of the pressurization piston rod is connected with the pressurization piston, and the other end of the pressurization piston rod penetrates through the connection flange to be connected with a connection piston in the existing injection molding machine glue jetting hydraulic cylinder, namely an existing molding injection machine glue jetting piston rod, so that synchronous actions of the pressurization piston and the connection piston are achieved. Hydraulic oil required for the actions of the pressurization piston comes form an existing injection molding machine hydraulic system, and the direction of the hydraulic oil is controlled through an electromagnetic reversing valve. Dual safe protection is conducted through an unloading valve and a stroke switch. The high-pressure injection function can be achieved at a low cost through the module, the application range of the injection molding machines is widened, and the existing performance of the injection molding machines is not influenced.
Description
Technical field
The invention belongs to injection machine technological transformation field, be related specifically to a kind of high-pressure injection module towards Normal hydraulic injection machine.
Background technology
On injection machine, polymer is melt through heating, plasticizing, injects the mold cavity closed, through pressurize, cooling, die sinking, obtain required goods with certain pressure, speed.Injection molding process mainly contains three large parameter systems in controlling: pressure, time and temperature.Wherein, injection pressure is one of important indicator of injection machine working ability, and has very important impact to quality of item.Only under higher injection pressure, goods just can be impelled to reach high-compactness and high strength.Therefore improve the injection pressure of injection machine, have very important meaning for lifting injection machine working ability and Mechanical Properties of Products.
Have the high-pressure injection moulding machine of special shaping thick-walled plastic goods or high viscosity plastic material in the market, but price general charged costly.And for applying wider Normal hydraulic injection machine at present, because this kind of equipment only has a set of hydraulic system, will sequentially complete the actions such as locked mode, plasticizing, injection, pressurize, die sinking, matched moulds, system pressure is unsuitable too high, thus limits the lifting of this kind equipment injection pressure.If by modularized design, under the prerequisite not changing original equipment general structure, increase a set of injection hydraulic cylinder and corresponding control device thereof, then can realize the function of high-pressure injection with lower cost price.
Summary of the invention
The object of the present invention is to provide a kind of modularization supercharging device towards Normal hydraulic injection machine, by the mode of series cylinder, auxiliary corresponding oil path control system, can improve 20 ~ 50% by the injection pressure of Normal hydraulic injection machine, thus achieve high-pressure injection.
Technical scheme of the present invention is as follows:
Towards the high-pressure injection module of Normal hydraulic injection machine, comprise pressurizing hydraulic cylinder and oil circuit control two parts.Pressurizing hydraulic cylinder is made up of end cap, supercharging cylinder body, charged piston, charged piston bar and adpting flange etc., it is connected in a series arrangement with former injection molding machine injection hydraulic cylinder body by the pull bar screw through end cap, adpting flange.Charged piston bar one end is connected with charged piston, the other end is connected with the connection piston in former injection molding machine injection hydraulic cylinder body through adpting flange, namely be connected with former injection piston rod of injection molding machine, realize charged piston and be connected piston synchronous action, connected mode is and is threaded.Needed for charged piston action, hydraulic oil is from former Hydraulic System for Injection Moulding Machine, by the trend of solenoid directional control valve hydraulic control oil.Unloader and travel switch is adopted to carry out dual security protection.
Effect of the present invention and benefit are: the pressurization hydraulic cylinder structure provided is simple, and achieve modularized design manufacture, pressurized effect is obvious.Change less to existing equipment, be easy to dismounting, change cost low.After change, high pressure and normal pressures injection two states can be realized, both expanded the range of application of original annotation molding machine, and do not affected again the existing performance of original annotation molding machine.
Accompanying drawing explanation
Fig. 1 is pressurizing hydraulic cylinder of the present invention assembling schematic diagram.
Fig. 2 is pressurization control oil circuit schematic diagram of the present invention.
In figure: 1 pull bar screw; 2 end caps; 3 charged pistons; 4 supercharging cylinder bodies; 5 charged piston bars; 6 adpting flanges; 7 connect piston; 8 injection hydraulic cylinder bodies; 9 injection piston rods; 10 three-position four-way electromagnetic directional valve; 11 unloaders; 12 two-position four-way solenoid directional control valves; 13 travel switches.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
The hydraulic cylinder of supercharging is used to shown in Fig. 1, be made up of end cap 2, charged piston 3, supercharging cylinder body 4, charged piston bar 5 and adpting flange 6 etc., by the pull bar screw 1 through end cap 2, adpting flange 6, it be connected in a series arrangement with former injection molding machine injection hydraulic cylinder body 8.Charged piston bar 5 one end is connected with charged piston 3, the other end is connected with the connection piston 7 in former injection molding machine injection hydraulic cylinder body 8 through adpting flange 6, namely be connected with former injection piston rod of injection molding machine 9, thus realize charged piston 3 and be connected piston 7 synchronization action, connected mode is and is threaded.
As shown in Figure 2, when use single cylinder pattern, namely during the injection of original annotation molding machine normal pressures, two-position four-way solenoid directional control valve 12 is energized, and switches to left position; Three-position four-way electromagnetic directional valve 10 both sides no power, switches to meta.Now in Fig. 2,1 chamber of pressurized cylinder is all directly communicated with fuel tank with 2 intraluminal fluid force feeds, and only have 4 chambeies to be hydraulic oil, 3 chambeies are oil return.
When needs twin-tub pattern, namely when pressurizing hydraulic cylinder and former injection molding machine injection hydraulic cylinder cooperation, two-position four-way solenoid directional control valve 12 is energized, and switches to left position; Be energized on the left of three-position four-way electromagnetic directional valve 10, switch to left position.Now, there is hydraulic oil in 2 chambeies and 4 chambeies, and 1 chamber is communicated with fuel tank with 3 chambeies.According to the difference of supercharging cylinder body 4 internal diameter and charged piston 3 diameter, injection pressure can improve 20 ~ 50%.
In addition; equipment is also provided with safety guard; the contact point of unloader 11 can be touched when injection piston rod 9 moves to end of travel time; now unloader 11 is communicated with; No. 2 chambeies of pressurized cylinder and the hydraulic oil in stoste cylinder pressure No. 4 chambeies can flow directly into fuel tank; injection piston rod 9 runs out of steam, and stops moving ahead.If unloader 11 breaks down, still do not have action touch the contact point of unloader 11 at injection piston rod 9 after, injection piston rod 9 continues motion contact to travel switch 13, and at this moment travel switch 13 can be opened by closure state, working connection oil feed pump fuel cut-off, injection piston rod 9 stop motion.
Claims (1)
1., towards a high-pressure injection module for Normal hydraulic injection machine, it is characterized in that:
Towards the high-pressure injection module of Normal hydraulic injection machine, comprise pressurizing hydraulic cylinder and oil circuit control two parts; Pressurizing hydraulic cylinder is made up of end cap, supercharging cylinder body, charged piston, charged piston bar and adpting flange etc., it is connected in a series arrangement with former injection molding machine injection hydraulic cylinder body by the pull bar screw through end cap, adpting flange; Charged piston bar one end is connected with charged piston, the other end is connected with the connection piston in former injection molding machine injection hydraulic cylinder body through adpting flange, namely be connected with former injection piston rod of injection molding machine, realize charged piston and be connected piston synchronous action, connected mode is and is threaded; Needed for charged piston action, hydraulic oil is from former Hydraulic System for Injection Moulding Machine, by the trend of solenoid directional control valve hydraulic control oil; Unloader and travel switch is adopted to carry out dual security protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246481.9A CN104859119A (en) | 2015-05-14 | 2015-05-14 | High-pressure injection module for ordinary hydraulic injection molding machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246481.9A CN104859119A (en) | 2015-05-14 | 2015-05-14 | High-pressure injection module for ordinary hydraulic injection molding machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104859119A true CN104859119A (en) | 2015-08-26 |
Family
ID=53905494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510246481.9A Pending CN104859119A (en) | 2015-05-14 | 2015-05-14 | High-pressure injection module for ordinary hydraulic injection molding machines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104859119A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274709A (en) * | 2018-01-23 | 2018-07-13 | 东莞市台塑实业有限公司 | A kind of full-automatic rubber injection (mo(u)lding) machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5774135A (en) * | 1980-10-29 | 1982-05-10 | Toshiba Mach Co Ltd | High pressure injection molding method and device therefor |
| JPS59146823A (en) * | 1983-02-10 | 1984-08-22 | Toshiba Mach Co Ltd | Apparatus for detecting injection abnormality of injection molder |
| CN2353509Y (en) * | 1998-03-13 | 1999-12-15 | 深圳犀利电子机械有限公司 | Injection moulding machine with double compound cylinders for plastic-injection and control oil-path |
| CN202702555U (en) * | 2012-08-24 | 2013-01-30 | 宁波华美达机械制造有限公司 | Double-cylinder pressurizing mold closing mechanism |
| CN204109306U (en) * | 2014-09-30 | 2015-01-21 | 姚惠祥 | The oil channel structures of mode locking cylinder supercharging is synchronized to by injection piston power |
-
2015
- 2015-05-14 CN CN201510246481.9A patent/CN104859119A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5774135A (en) * | 1980-10-29 | 1982-05-10 | Toshiba Mach Co Ltd | High pressure injection molding method and device therefor |
| JPS59146823A (en) * | 1983-02-10 | 1984-08-22 | Toshiba Mach Co Ltd | Apparatus for detecting injection abnormality of injection molder |
| CN2353509Y (en) * | 1998-03-13 | 1999-12-15 | 深圳犀利电子机械有限公司 | Injection moulding machine with double compound cylinders for plastic-injection and control oil-path |
| CN202702555U (en) * | 2012-08-24 | 2013-01-30 | 宁波华美达机械制造有限公司 | Double-cylinder pressurizing mold closing mechanism |
| CN204109306U (en) * | 2014-09-30 | 2015-01-21 | 姚惠祥 | The oil channel structures of mode locking cylinder supercharging is synchronized to by injection piston power |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274709A (en) * | 2018-01-23 | 2018-07-13 | 东莞市台塑实业有限公司 | A kind of full-automatic rubber injection (mo(u)lding) machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150826 |
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| WD01 | Invention patent application deemed withdrawn after publication |