CN201172270Y - Injection moulding machine with injection and pre-injection independent synchronization - Google Patents
Injection moulding machine with injection and pre-injection independent synchronization Download PDFInfo
- Publication number
- CN201172270Y CN201172270Y CNU2007201771416U CN200720177141U CN201172270Y CN 201172270 Y CN201172270 Y CN 201172270Y CN U2007201771416 U CNU2007201771416 U CN U2007201771416U CN 200720177141 U CN200720177141 U CN 200720177141U CN 201172270 Y CN201172270 Y CN 201172270Y
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- injection
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- preformed
- cavity volume
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Abstract
The utility model discloses an injection machine capable of independent and synchronous injection and preplastication, which comprises a preplastication unit, an injection unit and a synchronous changeover valve. The synchronous changeover valve is used to turn on or off the connection between a containing cavity at the front end of a material barrel, a containing cavity at the front end of an injection plunger piston and a nozzle. When a plunger piston injection program is selected, the injection plunger piston is used to inject, and a screw can be used to preplasticize synchronously. When a screw injection program is selected, the screw or the plunger piston is used to inject with time-sharing to realize two-stage screw injection and plunger piston injection pressure. The injection machine capable of independent and synchronous injection and preplastication is an improvement based on an existing injection machine with a simple structure, enlarging injection weight of the injection machine by adding an injection plunger piston and a synchronous changeover valve, utilizing the synchronous changeover valve to turn on or off the connection between a containing cavity at the front end of a material barrel and a containing cavity at the front end of an injection plunger piston, saving the molding time of injection products according to synchronous preplastication , and improving high pressure injection capacity.
Description
Technical field
The utility model relates to a kind of injection machine, but particularly relates to the injection machine that a kind of injection and the preformed independent same step carries out.The utility model is used to enlarge the injection weight of injection machine, the molding time of improving the high-pressure injection ability and saving injecting products.
Background technology
The preformed and the action of injection of existing screw injection molding machine are time-division operations, and are to be finished by same screw rod.During injection machine work, at first move the preformed action, screw rod rotates, plastics in the hopper enter barrel, push ahead along the screw slot that rotates, because heating of barrel external heat circle and shearing friction own produce heat, plastics are the viscosity flow state very soon in this process, terminal storage is in the barrel front space, along with bin stock increases, force screw rod to retreat, counterbalance valve makes screw rod retreat certain resistance, make molten plastic get rid of gas and reach fine and close, guarantee the goods high-quality.After the material of storing reached some, an electronic ruler of injection machine sent signal, and preformed is stopped, and in order to prevent that dissolving plastics flows out from jet hole, screw rod moves a bit of distance backward sometimes, is called " anti-saliva " or " penetrate and move back ".Thereafter, injection machine operation action of injection during injection, by the injection cylinder lead-screw, is injected melt and is cooled to goods in the mould.So preformed and action of injection be independent operating simultaneously.And, because of being is moved by same screw rod, select injection weight can influence and restrict the height of injection pressure, the two can not independently be selected.
Chinese patent application numbers 2005800244.26 has been shown a kind of injection machine and Shooting Technique that has individual part can move preformed and injection respectively, but preformed and action of injection independent operating simultaneously.Thereby China Patent No. 200420082561.2 has been shown a kind of injection machine that increases auxiliary plasticizing assembly expansion injection weight, but two plasticizing establishment of component cost height, baroque problem are arranged.China Patent No. 9821684.1 has been shown the injection machine of a kind of screw rod preformed and plunger injection, enlarges injection weight by increase by a major diameter plunger at the barrel front end, but preformed and action of injection can not the while independent operatings.
Summary of the invention
For injection and the preformed that overcomes the prior art existence can not carry out in the independent same step, same screw rod influence also restricts injection weight and injection pressure, the two can not independently select defective and deficiency, but the utility model provides a kind of injection and the preformed independent same injection machine that the step carries out.Solve the technical scheme that its technical problem adopts: but a kind of injection and preformed independent same go on foot the injection machine that carries out, increase an injection piston and a synchronous transfer valve newly, the connection of barrel, screw front end cavity volume and injection piston front end cavity volume links or disconnects is to be finished by synchronous transfer valve.Comprise: synchronous transfer valve, injection piston, the preformed unit, support plate before the barrel, barrel, support plate behind the barrel is contained in the screw rod in the barrel, preformed oil cylinder, preformed seat, injecting unit, injection seat, injection seat guide post.When selecting the plunger injection program, transfer valve cuts out the screw front end cavity volume synchronously, during injection, move action of injection by injection piston, melt injected be cooled to goods in the mould, screw rod also can be used to carry out the preformed action simultaneously, to save the molding time of product injection moulding next time.When selecting the screw of injection program, during injection, transfer valve timesharing synchronously disconnects and opens the binding of screw front end cavity volume, injection piston front end cavity volume and nozzle, carry out action of injection by screw rod or plunger timesharing, realize screw of injection, the plunger injection of second order pressure, will be cooled to goods in the melt high and low pressure injection mould.
The technical measures of its solution are: it is to have done improvement at existing injection machine, during enforcement, by increasing an injection piston and a synchronous transfer valve newly.When needs are injected big shot, select the injection piston diameter greater than screw diameter, move the action of injection of the big injection volume of low pressure by large diameter injection piston, also can select the screw rod of minor diameter to carry out super-pressure injection moulding action then.Thereby the expansion injection volume, and improved injection high pressure ability.In addition, when selecting the plunger injection program, screw rod is carried out the preformed action simultaneously, reaches the purpose of the molding time of saving injecting products.
Compared with prior art, the beneficial effects of the utility model are: the utility model realizes enlarging the injection weight of injection machine and the molding time of saving injecting products by increasing an injection piston and a synchronous transfer valve newly, and improved injection high pressure ability, simple in structure.The utility model and prior art: it is the inevitable technique effect that is directly brought by technical characterictic and produce that injection can not be compared the advantage and the good effect that are had the independent same step with preformed.
Description of drawings
Fig. 1 is the injection and the preformed cell schematics of existing injection machine
Fig. 2 is the structure front view of the utility model embodiment
Fig. 3 is the structure vertical view of the utility model embodiment
Fig. 4 is the synchronous transfer valve schematic diagram of the utility model embodiment
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail, but a kind of injection and preformed independent same go on foot injection machine such as the Fig. 2 that carries out, Fig. 3, shown in Figure 4.The utility model comprises: preformed unit (10), injecting unit (20), and synchronous transfer valve (17).Described preformed unit (10) comprising: supporting base (6) before the barrel (7), barrel, barrel rear branching holder (9) is contained in the screw rod (8) in the barrel, preformed seat (14), preformed oil cylinder (15), preformed motor (11).Described injecting unit (20) comprising: nozzle (1), injection piston (3), injection piston valve body (4), injection cylinder (16), injection seat (2), injection seat guide post (13).Injection piston (3) is placed in the injection seat (2), preformed unit (10) is placed in the top of injection seat (2), transfer valve (17) is in the centre of barrel front end cavity volume (19) and injection piston front end cavity volume (18) synchronously, is switched on or switched off the connection of barrel front end cavity volume (19), injection piston front end cavity volume (18) and nozzle (1) by synchronous transfer valve (17).One end of the preceding supporting base (6) of barrel links to each other with synchronous transfer valve (17) and fixedly is screwed onto, and the other end of the preceding supporting base (6) of barrel links to each other with barrel (7) and fixedly is screwed onto.Preformed unit (10) is gone up linear movement by the whole oil cylinder (5) that moves at injection seat guide post (13), and nozzle (1) is moved forward and backward, and nozzle (1) and mould gate are fitted tightly, and does not have the material of leakage when guaranteeing injection.Can select screw rod whether retreating when preformed in advance according to the plastics trade mark, enlarge the preformed amount.When injection machine is worked, at first carry out the preformed action, this moment, synchronous transfer valve (17) was opened the passage of barrel front end cavity volume (19) and injection piston front end cavity volume (18), and nozzle (1) disconnects with the passage of said two devices.Melt enters injection piston front end cavity volume (18), after the preformed amount of regulation reaches, injection machine is carried out action of injection, when selecting the plunger injection program to carry out injection, transfer valve (17) cuts out barrel front end cavity volume (19) synchronously, nozzle (1) is opened with the passage of injection piston front end cavity volume (18), moves action of injection by injection piston (3), melt is injected be cooled to goods in the mould.When injection machine selects the plunger injection program to carry out injection, also can carry out the action of screw rod (8) preformed synchronously.When injection machine was selected screw of injection program execution injection, transfer valve (17) timesharing synchronously disconnected and opens the passage of barrel front end cavity volume (19), injection piston front end cavity volume (18) and nozzle (1).Carry out action of injection by screw rod (8) or injection piston (3) timesharing, realize the screw of injection and the plunger injection of second order pressure, will become goods in the melt high and low pressure injection mould.
Claims (6)
1. annotate pre-independent synchronous injection machine for one kind, it comprises: preformed unit (10), injecting unit (20), and synchronous transfer valve (17), described preformed unit (10) comprising: barrel (7), supporting base (6) before the barrel, barrel rear branching holder (9) is contained in the screw rod (8) in the barrel, preformed seat (14), preformed oil cylinder (15), preformed motor (11); Described injecting unit (20) comprising: nozzle (1), injection piston (3), injection piston valve body (4), injection cylinder (16), injection seat (2), injection seat guide post (13), injection piston (3) is placed in the injection seat (2), and preformed unit (10) are placed in the top of injection seat (2); It is characterized in that: transfer valve (17) is in the centre of barrel front end cavity volume (19) and injection piston front end cavity volume (18) synchronously, is switched on or switched off the connection of barrel front end cavity volume (19), injection piston front end cavity volume (18) and nozzle (1) by synchronous transfer valve (17).
2. the pre-independent synchronous injection machine of notes as claimed in claim 1, it is characterized in that: preceding supporting base (6) one ends of barrel link to each other with synchronous transfer valve (17) and fixedly are screwed onto, and preceding supporting base (6) other end of barrel links to each other with barrel (7) and fixedly is screwed onto.
3. the pre-independent synchronous injection machine of notes as claimed in claim 1 is characterized in that: nozzle (1) is gone up linear front or rear moving at injection seat guide post (13).
4. the pre-independent synchronous injection machine of notes as claimed in claim 1 is characterized in that: when selecting the plunger injection program, barrel front end cavity volume (19) interrupts with the passage of nozzle (1), and injection piston front end cavity volume (18) is connected with the passage of nozzle (1).
5. the pre-independent synchronous injection machine of notes as claimed in claim 1, it is characterized in that: when selecting the plunger injection program, during injection, screw rod (8) rotates simultaneously.
6. the pre-independent synchronous injection machine of notes as claimed in claim 1, it is characterized in that: when selecting the screw of injection program, during injection, transfer valve (17) timesharing synchronously disconnects and opens the connection of barrel front end cavity volume (19), injection piston front end cavity volume (18) and nozzle (1), by screw rod (8) or injection piston (3) timesharing action, realize the screw of injection and the plunger injection of second order pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201771416U CN201172270Y (en) | 2007-09-20 | 2007-09-20 | Injection moulding machine with injection and pre-injection independent synchronization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201771416U CN201172270Y (en) | 2007-09-20 | 2007-09-20 | Injection moulding machine with injection and pre-injection independent synchronization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201172270Y true CN201172270Y (en) | 2008-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201771416U Expired - Fee Related CN201172270Y (en) | 2007-09-20 | 2007-09-20 | Injection moulding machine with injection and pre-injection independent synchronization |
Country Status (1)
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| CN (1) | CN201172270Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001167A (en) * | 2010-09-07 | 2011-04-06 | 华南理工大学 | Plunger pump type hydraulic injection moulding machine system driven by servo motor and control method thereof |
| CN102837394A (en) * | 2011-06-23 | 2012-12-26 | 发那科株式会社 | Injection molding machine with synchronous nozzle contact mechanism |
| CN103481472A (en) * | 2013-09-13 | 2014-01-01 | 浙江宏振机械模具集团有限公司 | Injection molding machine with pre-molding and injection molding switching device |
| CN104526995A (en) * | 2014-12-17 | 2015-04-22 | 泰瑞机器股份有限公司 | Plastic extruding and injection molding machine with material cleaning function |
| CN104827635A (en) * | 2015-04-15 | 2015-08-12 | 浙江申达机器制造股份有限公司 | Combined two-stage type glue injection mechanism and injection forming process thereof |
| CN116353003A (en) * | 2023-04-11 | 2023-06-30 | 广东福能精密机械有限公司 | Direct-pressure center mode locking double-stage injection molding machine |
-
2007
- 2007-09-20 CN CNU2007201771416U patent/CN201172270Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001167A (en) * | 2010-09-07 | 2011-04-06 | 华南理工大学 | Plunger pump type hydraulic injection moulding machine system driven by servo motor and control method thereof |
| CN102001167B (en) * | 2010-09-07 | 2013-07-24 | 华南理工大学 | Plunger pump type hydraulic injection moulding machine system driven by servo motor and control method thereof |
| CN102837394A (en) * | 2011-06-23 | 2012-12-26 | 发那科株式会社 | Injection molding machine with synchronous nozzle contact mechanism |
| CN102837394B (en) * | 2011-06-23 | 2015-02-11 | 发那科株式会社 | Injection molding machine with synchronous nozzle contact mechanism |
| CN103481472A (en) * | 2013-09-13 | 2014-01-01 | 浙江宏振机械模具集团有限公司 | Injection molding machine with pre-molding and injection molding switching device |
| CN104526995A (en) * | 2014-12-17 | 2015-04-22 | 泰瑞机器股份有限公司 | Plastic extruding and injection molding machine with material cleaning function |
| CN104827635A (en) * | 2015-04-15 | 2015-08-12 | 浙江申达机器制造股份有限公司 | Combined two-stage type glue injection mechanism and injection forming process thereof |
| CN104827635B (en) * | 2015-04-15 | 2017-06-13 | 浙江申达机器制造股份有限公司 | One kind combination two steps type injection mechanism and its injection molding technique |
| CN116353003A (en) * | 2023-04-11 | 2023-06-30 | 广东福能精密机械有限公司 | Direct-pressure center mode locking double-stage injection molding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20130920 |