CN2780447Y - Fused body pressure control device of plastic machinery - Google Patents
Fused body pressure control device of plastic machinery Download PDFInfo
- Publication number
- CN2780447Y CN2780447Y CN 200520070332 CN200520070332U CN2780447Y CN 2780447 Y CN2780447 Y CN 2780447Y CN 200520070332 CN200520070332 CN 200520070332 CN 200520070332 U CN200520070332 U CN 200520070332U CN 2780447 Y CN2780447 Y CN 2780447Y
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- CN
- China
- Prior art keywords
- pressure control
- machine barrel
- oil cylinder
- accumulator
- control oil
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a fused body pressure control device of the plastic machinery, which comprises a threaded rod which is arranged inside a machine barrel. The machine barrel is erectly arranged, and a hopper is arranged at the top end of the machine barrel; the bottom side of the machine barrel is provided with an accumulator cylinder which is communicated with a mould via a jet nozzle. A pressure control oil cylinder is arranged at the upper side of the accumulator cylinder, and the lower end of a piston rod of the pressure control oil cylinder is fixedly connected with a plunger piston; which is arranged on the upper side wall of the accumulator cylinder, and a sliding block is arranged at the upper end of the piston rod of the pressure control oil cylinder; the upper side and the lower side of the slide block are respectively provided with two proximity switches. The utility model has the advantages that the device is simple in structure, is more reliable in use, is stable in pressure maintaining for the fused body inside the mould, shortens working period and raises the work efficiency of the equipment.
Description
Technical field
The utility model relates to a kind of device that is used to control plastics fusion and melt pressure thereof in injection machine.
Background technology
Existing molding machine melt pressure control device comprises the screw rod that is arranged in the machine barrel, in the leading section machine barrel of screw rod, be provided with the cavity that can hold plastic melt, cavity outlet end and mould link, the rearward end of screw rod is connected with two injection cylinders, when screw rod rotates, also can do axially-movable along machine barrel in machine barrel.When this device uses, screw rod rotation preformed, melt pressure in the mould of machine barrel front end raises, the mould pressurize, screw rod is subjected to the effect of front end melt pressure, motion backward vertically in machine barrel, along with the continuous rotation of screw rod, the plastics material for making clothes at machine barrel rear portion is constantly plastified and is transported to the front end of screw rod, when screw rod retreats into the precalculated position, spiro rod plasticizing stops, at this moment, just stored enough molten plastics between screw front end and the mould, waited after the anti-saliva action of screw rod finishes, melt pressure descends, and mould is opened.Treat mould once more behind the matched moulds, screw rod travels forward under the drive of two injection cylinders, and the plastics of fusion are injected mould, and when waiting screw rod to be advanced to the precalculated position, injection finishes.Mainly there are following some shortcomings in this molding machine melt pressure control device: because the fusion of plastics is separately carried out with injection in this device, so increases its service cycle, production efficiency is not best; Simultaneously, this device comes the melt in the mould is carried out pressurize by the rotation of screw rod, therefore, and its pressurize less stable; In addition, because screw rod moves axially in machine barrel, promptly the leading section of machine barrel is provided with the cavity that holds melt, and therefore, its barrel length is longer relatively.
Summary of the invention
The purpose of this utility model is to provide a kind of fusion and injection to carry out simultaneously, and pressurize is more stable, and can shorten the molding machine melt pressure control device of barrel length.
For realizing the purpose of this utility model, a kind of molding machine melt pressure control device, comprise the screw rod that is arranged in the machine barrel, described machine is upright simply to be installed, the top ends of machine barrel is provided with hopper, the bottom side of machine barrel is provided with accumulator, accumulator links by nozzle and mould, upside in accumulator is provided with pressure control oil cylinder, the pressure control oil cylinder piston bar lower end plunger that has been fixedly connected, plunger is arranged on the upper side wall of accumulator, and the upper end of pressure control oil cylinder piston bar is provided with slide block, and the upper and lower sides of slide block is respectively arranged with two near switch.
The utility model has the advantages that: this apparatus structure is simple, and volume is less, uses more reliable; Stable to the melt pressurize in the mould; Work period shortens, and the equipment operating efficiency improves.
Description of drawings
Below in conjunction with accompanying drawing the utility model molding machine melt pressure control device is described in further detail:
Fig. 1 is the structural representation of the utility model molding machine melt pressure control device.
Among the figure: 1, machine barrel, 2, screw rod, 3, hopper, 4, accumulator, 5, nozzle, 6, mould, 7, pressure control oil cylinder, 8, piston rod, 9, plunger, 10, slide block, 11, near switch.
The specific embodiment
As shown in Figure 1, a kind of molding machine melt pressure control device, comprise the screw rod 2 that is arranged in the machine barrel 1, machine barrel 1 is uprightly installed, the top ends of machine barrel 1 is provided with hopper 3, the bottom side of machine barrel 1 is provided with accumulator 4, accumulator 4 links by nozzle 5 and mould 6, upside in accumulator 4 is provided with pressure control oil cylinder 7, the pressure control oil cylinder 7 piston rods 8 lower ends plunger 9 that has been fixedly connected, plunger 9 is arranged on the upper side wall of accumulator 4, and the upper end of pressure control oil cylinder 7 piston rods 8 is provided with slide block 10, and the upper and lower sides of slide block 10 is respectively arranged with two near switch 11.
When molding machine melt pressure control device was as shown in Figure 1 worked, screw rod 2 rotated in machine barrel 1, plastic pellet is carried downwards, and fusion plastification.After the melt of fusion plastification is full of mould 6, melt pressure in the accumulator 4 rises, when melt pressure rises to the active force that is enough to overcome pressure control oil cylinder 7, plunger 9 moves upward, promote the piston rod 8 of pressure control oil cylinder 7 and the slide block 10 at top thereof and move upward together, when slide block 10 trigger its top near switch 11 time, screw rod 2 just stops operating, mould 6 pressurizes, dwell pressure is provided by pressure control oil cylinder 7.After pressurize finishes, screw rod 2 counter-rotatings, the melt pressure in the accumulator 4 descends, the slide block 10 that the piston rod 8 of pressure control oil cylinder 7 drives its ends moves downward, up to trigger its underpart near switch 11, screw rod 2 stops counter-rotating, waits for entering the next action cycle.
Claims (1)
1, a kind of molding machine melt pressure control device, comprise the screw rod (2) that is arranged in the machine barrel (1), it is characterized in that: described machine barrel (1) is upright to be installed, the top ends of machine barrel (1) is provided with hopper (3), the bottom side of machine barrel (1) is provided with accumulator (4), accumulator (4) links by nozzle (5) and mould (6), upside in accumulator (4) is provided with pressure control oil cylinder (7), pressure control oil cylinder (7) piston rod (8) the lower end plunger (9) that has been fixedly connected, plunger (9) is arranged on the upper side wall of accumulator (4), the upper end of pressure control oil cylinder (7) piston rod (8) is provided with slide block (10), and the upper and lower sides of slide block (10) is respectively arranged with two near switch (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520070332 CN2780447Y (en) | 2005-04-01 | 2005-04-01 | Fused body pressure control device of plastic machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520070332 CN2780447Y (en) | 2005-04-01 | 2005-04-01 | Fused body pressure control device of plastic machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2780447Y true CN2780447Y (en) | 2006-05-17 |
Family
ID=36761646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520070332 Expired - Fee Related CN2780447Y (en) | 2005-04-01 | 2005-04-01 | Fused body pressure control device of plastic machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2780447Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647709A (en) * | 2015-02-04 | 2015-05-27 | 常熟康尼格科技有限公司 | Melt-and-play glue melting device |
-
2005
- 2005-04-01 CN CN 200520070332 patent/CN2780447Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647709A (en) * | 2015-02-04 | 2015-05-27 | 常熟康尼格科技有限公司 | Melt-and-play glue melting device |
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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: 20060517 Termination date: 20140401 |