CN2780444Y - Hydraulic device of plastic pneumatic thermoshaping machine - Google Patents
Hydraulic device of plastic pneumatic thermoshaping machine Download PDFInfo
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- CN2780444Y CN2780444Y CN 200520057936 CN200520057936U CN2780444Y CN 2780444 Y CN2780444 Y CN 2780444Y CN 200520057936 CN200520057936 CN 200520057936 CN 200520057936 U CN200520057936 U CN 200520057936U CN 2780444 Y CN2780444 Y CN 2780444Y
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Abstract
The utility model relates to a hydraulic device of a plastic pneumatic heat molding machine. The device comprises a plurality of high pressure large caliber pressurizing oil cylinders (1), small caliber actuating oil cylinders (2), a low pressure high flow rate pump (3), a high pressure low flow rate pump (4), an oil pump drive motor (5), a first reversing valve (6), a second reversing valve (7), a prefill valve (8) and a sequence valve (8), wherein the pressurizing oil cylinders (1) and the actuating cylinders (2) are vertically fixed on the upper part of a work table (15) and are connected with the prefill valve (8), the sequence valve (9) and the second reversing valve (5) through a hydraulic pipeline, the low pressure high flow rate pump (3) and the high pressure low flow rate pump (4) are connected with the oil pump drive motor (5) and a main oil tank (10), the low pressure high flow rate pump is connected with the first reversing valve (6), the high pressure low flow rate pump is connected with the second reversing valve (7), and the prefill valve (8) is connected with a high position auxiliary oil tank (11). The utility model enables the low pressure high flow rate pump and the high pressure low flow rate pump to be combined in a reasonable prefill mode, the main travel and the return speed of oil cylinders are accelerated, and the cost the device is low.
Description
Technical field
The utility model relates to plastic molding machinery, particularly relates to a kind of hydraulic means of Pneumatic hot plastic molding machine.
Background technology
In people's life, can see or use various plastic products, casing as household electrical appliance, various plastic containers and packing material etc., wherein plastic containers and packing material are made by hollow blow molding or plastic uptake method mostly, and plastic products such as casing all are to make by injection machine or heat pressing forming machines usually.Upper table that the pressing mold of existing heat pressing forming machines is used and lower table are to be driven by hydraulic mechanism, with regard to the heat pressing forming machines of processing big-and-middle-sized product, for realizing the quick acting of oil cylinder, will have the oil cylinder of high-pressure large-caliber and high-pressure pump, the valve of big flow to match with it, this must cause the investment of doting on big and great number of system.
Summary of the invention
The utility model is intended to address the above problem, and provide a kind of low pressure and mass flow pump, high-pressure low-flow pump are combined with rational topping up mode, make the main stroke of oil cylinder and opening speed accelerate, and the hydraulic means of the low Pneumatic hot plastic molding machine of apparatus cost.
For achieving the above object, the utility model provides a kind of hydraulic means of Pneumatic hot plastic molding machine, this device is the multiple casing hydraulic means, it comprises a plurality of high-pressure large-caliber pressurization oil cylinders 1, small-bore driving oil cylinder 2, low pressure and mass flow pump 3, high-pressure low-flow pump 4, oil pump CD-ROM drive motor 5, first reversal valve 6, second reversal valve 7, prefill valve 8 and sequence valve 9, wherein, a plurality of pressurization oil cylinders 1 and driving oil cylinder 2 are the top of vertically being fixed in workbench 15, and by conduit under fluid pressure and prefill valve 8, the sequence valve 9 and second reversal valve 5 are connected, low pressure and mass flow pump 3 is connected with motor 5 and main fuel tank 10 with high-pressure low-flow pump 4, and the low pressure and mass flow pump is connected with first reversal valve 6, high-pressure low-flow pump second reversal valve 7 is connected, and prefill valve 8 is connected with high-order auxiliary fuel tank 11.
This check valve also is connected with high-pressure low-flow pump 4.
Motor 5 is connected with high-pressure low-flow pump 4 with low pressure and mass flow pump 3 by its driving shaft 14.
Low pressure and mass flow pump 3 is a gear pump, and high-pressure low-flow pump 4 is a plunger displacement pump, and they are connected with the driving shaft 14 of motor 5 by shaft coupling separately.
Good effect of the present utility model is that it organically is combined as a whole a plurality of high-pressure large-caliber oil cylinders, low pressure and mass flow pump, high-pressure low-flow pump with rational topping up mode, makes this hydraulic means be swift in motion, and especially is swift in motion when main stroke.And because the utility model is simple in structure, thereby cost is low, reliable operation.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
Fig. 2 is pressurization oil cylinder of the present utility model and drives oil cylinder and workbench connection diagram.
The specific embodiment
Consult Fig. 1, the hydraulic means of Pneumatic hot plastic molding machine of the present utility model is the multiple casing hydraulic means, this device comprises a plurality of high-pressure large-caliber pressurization oil cylinders 1, small-bore driving oil cylinder 2, low pressure and mass flow pump 3, high-pressure low-flow pump 4, oil pump CD-ROM drive motor 5, first reversal valve 6, second reversal valve 7, prefill valve 8 and sequence valve 9, Fig. 2 has provided the example that oil cylinder is provided with, as shown, pressurization oil cylinder 1 and driving oil cylinder 2 are made of eight high-pressure large-caliber oil cylinders and two small-bore driving oil cylinders respectively, they are the top of vertically being fixed in workbench 15, four pressurization oil cylinders are divided into two rows, the plunger end of its lower end is connected with workbench 15, its upper end is parallel on the conduit under fluid pressure 12, prefill valve 8 is housed on the conduit under fluid pressure 12, the sequence valve 9 and second reversal valve 7, pressurization oil cylinder 1 and driving oil cylinder 2 are by conduit under fluid pressure 12 and prefill valve 8, the sequence valve 9 and second reversal valve 7 are connected prefill valve 8, the sequence valve 9 and second reversal valve all adopt the commercially available prod.Two drive oil cylinders and place between two row's pressurization oil cylinders, and be connected with conduit under fluid pressure 12 with workbench 15 with the same mode of pressurization oil cylinder 1.Described low pressure and mass flow pump 3 is a gear pump, and its pressure is several MPas, and flow is tens milliliters of revolutions, high-pressure low-flow pump 4 is a plunger displacement pump, and its pressure is tens MPas, and flow is several milliliters of revolutions, they are connected with the driving shaft 14 of motor 5 by shaft coupling separately, drive its run-in synchronism by motor.The input of low pressure and mass flow pump 3 and high-pressure low-flow pump 4 is connected with main fuel tank 10, from main fuel tank the oil pumping and be sent to oil cylinder, the output of low pressure and mass flow pump 3 is connected with first reversal valve 6, the output of high-pressure low-flow pump 4 is connected with second reversal valve 7.Described first reversal valve 6 and second reversal valve 7 are used for the conversion of oil cylinder master stroke and backhaul.Between first reversal valve 6 and second reversal valve 7 and be connected to check valve 13, be used for when pressure changes, carrying out the work conversion of low pressure and mass flow pump 3 and high-pressure low-flow pump 4, this check valve also is connected with high-pressure low-flow pump 4.Described prefill valve 8 is connected with high-order auxiliary fuel tank 11, and the oil in the high-order auxiliary fuel tank can flow in the pressurization oil cylinder 1 through prefill valve when oil cylinder is descending automatically.
The utility model places the A position with first reversal valve 6 when work, second reversal valve 7 places the B position, and low pressure and mass flow pump 3 charges into fluid in the rodless cavity that drives oil cylinder 2, and the oil storage in the high-order auxiliary fuel tank 11 simultaneously flows in the pressurization oil cylinder 1 automatically.Workbench 15 is fast near the operating position, after arriving the operating position, the workbench system pressure that is obstructed raises, when pressure surpasses the low pressure and mass flow pump, continue fuel feeding and improve device pressure by the high-pressure low-flow pump, after pressure surpasses sequence valve 9 set pressures, hydraulic oil flows in the pressurization oil cylinder 1, and closes prefill valve 8 automatically, and workbench 15 obtains pressure.
During backhaul, first reversal valve 6 places the B position, opens prefill valve, and second reversal valve 7 places the A position, and the high-pressure low-flow pump drives workbench 15 backhauls to the rod chamber oiling that drives oil cylinder 2, and pressurization oil cylinder inner fluid flows back to the topping up case.
Claims (5)
1, a kind of hydraulic means of Pneumatic hot plastic molding machine, it is characterized in that, this hydraulic means is the multiple casing hydraulic means, it comprises a plurality of high-pressure large-caliber pressurization oil cylinders (1), small-bore driving oil cylinder (2), low pressure and mass flow pump (3), high-pressure low-flow pump (4), oil pump CD-ROM drive motor (5), first reversal valve (6), second reversal valve (7), prefill valve (8) and sequence valve (9), wherein, a plurality of pressurization oil cylinders (1) and driving oil cylinder (2) are the top of vertically being fixed in workbench (15), and by conduit under fluid pressure and prefill valve (8), sequence valve (9) and second reversal valve (5) are connected; Low pressure and mass flow pump (3) is connected with motor (5) and main fuel tank (10) with high-pressure low-flow pump (4), and the low pressure and mass flow pump is connected with first reversal valve (6), the high-pressure low-flow pump is connected with second reversal valve (7), and prefill valve (8) is connected with high-order auxiliary fuel tank (11).
2, the hydraulic means of Pneumatic hot plastic molding machine according to claim 1, it is characterized in that, described pressurization oil cylinder (1) and driving oil cylinder (2) are made of eight high-pressure large-caliber oil cylinders and two small-bore driving oil cylinders respectively, four pressurization oil cylinders are divided into two rows, its lower end is connected with workbench (15), and its upper end is connected with conduit under fluid pressure (12); Two driving oil cylinders place between two row's pressurization oil cylinders, and are connected with conduit under fluid pressure (12) with workbench (15).
3, the hydraulic means of Pneumatic hot plastic molding machine according to claim 1 is characterized in that, between first reversal valve (6) and second reversal valve (7) check valve (13) is housed, and this check valve also is connected with high-pressure low-flow pump (4).
4, the hydraulic means of Pneumatic hot plastic molding machine according to claim 1 is characterized in that, described motor (5) is connected with high-pressure low-flow pump (4) with low pressure and mass flow pump (3) by its driving shaft (14).
5, the hydraulic means of Pneumatic hot plastic molding machine according to claim 4, it is characterized in that, described low pressure and mass flow pump (3) is a gear pump, and high-pressure low-flow pump (4) is a plunger displacement pump, and they are connected with the driving shaft (14) of motor (5) by shaft coupling separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057936 CN2780444Y (en) | 2005-04-29 | 2005-04-29 | Hydraulic device of plastic pneumatic thermoshaping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057936 CN2780444Y (en) | 2005-04-29 | 2005-04-29 | Hydraulic device of plastic pneumatic thermoshaping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2780444Y true CN2780444Y (en) | 2006-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520057936 Expired - Fee Related CN2780444Y (en) | 2005-04-29 | 2005-04-29 | Hydraulic device of plastic pneumatic thermoshaping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2780444Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275330A (en) * | 2011-05-27 | 2011-12-14 | 开平太平洋绝缘材料有限公司 | Improved oil way controller for hydraulic press |
| CN103953595A (en) * | 2014-05-16 | 2014-07-30 | 西安麦特沃金液控技术有限公司 | Method and system of modification for increasing working speed of hydraulic press |
| CN111396527A (en) * | 2020-03-31 | 2020-07-10 | 潍坊新力蒙水产技术有限公司 | Liquid pressure transmission device |
| CN112512773A (en) * | 2018-08-03 | 2021-03-16 | 克劳斯玛菲科技有限公司 | Method and apparatus for manufacturing fiber-reinforced plasticizers |
-
2005
- 2005-04-29 CN CN 200520057936 patent/CN2780444Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275330A (en) * | 2011-05-27 | 2011-12-14 | 开平太平洋绝缘材料有限公司 | Improved oil way controller for hydraulic press |
| CN103953595A (en) * | 2014-05-16 | 2014-07-30 | 西安麦特沃金液控技术有限公司 | Method and system of modification for increasing working speed of hydraulic press |
| CN112512773A (en) * | 2018-08-03 | 2021-03-16 | 克劳斯玛菲科技有限公司 | Method and apparatus for manufacturing fiber-reinforced plasticizers |
| CN111396527A (en) * | 2020-03-31 | 2020-07-10 | 潍坊新力蒙水产技术有限公司 | Liquid pressure transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |