CN204583884U - Energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine - Google Patents
Energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine Download PDFInfo
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- CN204583884U CN204583884U CN201520113726.6U CN201520113726U CN204583884U CN 204583884 U CN204583884 U CN 204583884U CN 201520113726 U CN201520113726 U CN 201520113726U CN 204583884 U CN204583884 U CN 204583884U
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- 239000000446 fuel Substances 0.000 title claims abstract description 31
- 238000004134 energy conservation Methods 0.000 title claims abstract description 11
- 239000003921 oil Substances 0.000 claims abstract description 192
- 239000002828 fuel tank Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000010724 circulating oil Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000010727 cylinder oil Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010720 hydraulic oil Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Extrusion Of Metal (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The utility model relates to energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine, and include base, mould, ingot-containing tube, secondary cylinder, shear and oil supply system, described mould, ingot-containing tube and secondary cylinder are arranged on base successively; Described oil supply system includes master cylinder and the fuel reserve tank of plunger, and described extruder is short stroke extruder, and the ingot-containing tube of extruder is located at pressure ram apical position, when ingot-containing tube displacement and between mould, be formed with material space; Described fuel reserve tank is divided into two oil return fuel tank and pressurization oil cylinders being sealing; Described oil return fuel tank is connected with master cylinder by the backflow oil circuit accessing master cylinder, and oil return fuel tank is connected with pressurization oil cylinder by oil feed line; Described pressurization oil cylinder is provided with and acts on pressurization oil feed line fuel feeding to the piston of master cylinder, moved back and forth by piston and form the in-oil cylinder oil of pressurization and be squeezed to oil in master cylinder or in master cylinder and be back in pressurization oil cylinder by circulating oil path, described oil supply system is controlled by multiple oil pump of servo motor group.The utility model effectively raises the cost of manufacture that productivity ratio also reduces complete machine, has saved material, minimizing oil mass.
Description
Technical field
The utility model belongs to product moulding apparatus field, is involved in a kind of Form-bar Press Machine.
Background technology
The structure of traditional extruder is comparatively complicated, and cost is high, and stroke is long, inefficiency, and large by oil mass.And this extruder all adopts and puts open type oil tank.By assisting master cylinder to promote when the zero load of plunger master cylinder moves forward and backward, hydraulic oil is by prefill valve oil-feed and oil return.Be advance by Action of Gravity Field during oil-feed, therefore hydraulic oil is long-term and atmosphere.During due to every task, running of hydraulic power oil amount is very large, be easy to be mixed into air and dust, and the oil circuit valve on oil way of extruding machine and oil pump more, thus, same easily suction and entrained gas, therefore, fuel tank open like this has a strong impact on hydraulic oil result of use, and reduce the useful life of hydraulic oil, the control mode of existing speed of extruder is that the AC induction motor of use six grades or level Four passes through variable capacity oil pump, the stroking mechanism changing oil transfer pump that needs according to extrusion speed goes to realize speed-regulating function, thus, the defect had is: 1, under main frame ideal case, idle work can be produced, 2, oil pump to shorten in work or idling conditions for a long time service life, 3, main frame can produce heat at standby, motor hydraulic oil when dallying, and is unfavorable for energy-conserving and environment-protective, saves use cost.
Utility model content
The purpose of this utility model is, during in order to solve the work of existing Form-bar Press Machine, the impulse stroke of ingot-containing tube and pressure ram is large, large by oil mass, and the oil circuit of oil supply system and atmosphere, affect the defects such as hydraulic oil service life, provide energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine.
The purpose of this utility model can be achieved through the following technical solutions:
Energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine, include base, mould, ingot-containing tube, secondary cylinder, shear and oil supply system, described mould, ingot-containing tube and secondary cylinder are arranged on base successively; Described oil supply system includes master cylinder and the fuel reserve tank of plunger, described extruder is short stroke extruder, the ingot-containing tube of extruder is located at pressure ram apical position, the extrusion chamber of this pressure ram and ingot-containing tube forms the profile extrusion function promoted back and forth, when ingot-containing tube displacement and between mould, be formed with material space; Described fuel reserve tank is divided into two oil return fuel tank and pressurization oil cylinders being sealing; Described oil return fuel tank is connected with master cylinder by the backflow oil circuit accessing master cylinder, and oil return fuel tank is connected with pressurization oil cylinder by oil feed line, makes the circulating oil path that backflow oil circuit, oil return fuel tank and oil feed line form master cylinder and pressurize between oil cylinder; Described pressurization oil cylinder is provided with and acts on pressurization oil feed line fuel feeding to the piston of master cylinder, moved back and forth by piston and form the in-oil cylinder oil of pressurization and be squeezed to oil in master cylinder or in master cylinder and be back in pressurization oil cylinder by circulating oil path, form the oil supply system that extruder is sealed; Described oil supply system is controlled by multiple oil pump of servo motor group.
The purpose of this utility model can also be achieved through the following technical solutions:
Further, the impulse stroke distance of described ingot-containing tube is slightly larger than charging length; The impulse stroke distance of the pressure ram of master cylinder and secondary cylinder, slightly larger than charging length, is slightly less than the impulse stroke of ingot-containing tube.
Further, described ingot-containing tube is driven by the hydraulic push rod of base both sides, makes ingot-containing tube return mobile working on base.
Further, described pressure ram is arranged on a mobile guide slide block, and form integral structure, it acts on and pressure ram can accurately be entered in the extrusion chamber of ingot-containing tube.
Further, described oil return fuel tank is positioned at the top of extruder, and this oil return fuel tank and extruder are vertical type structure, and this oil return fuel tank controls the backflow oil circuit of extruder master cylinder by one or more oil pump of servo motor group and one or more groups electromagnetic valve; Described pressurization oil cylinder is positioned at extruder rear portion.
Further, described pressurization oil cylinder, by its piston of single-acting extension sleeve oil cylinder pushing, produces constant pressure in pressurization oil cylinder.
Further, described prefill valve is triple valve, the port one of this triple valve accesses master cylinder, port two connects with the output circuit of oil return fuel tank, port three is connected with in pressurization oil cylinder, the output circuit of its oil return fuel tank is connected with pressurization oil cylinder by triple valve, forms the oil return circulation line of pressurization oil cylinder.
Further, described oil return fuel tank and extruder are integral type structure.
Further, described pressurization oil cylinder and extruder are split-type structural.
The beneficial effects of the utility model:
1, ingot-containing tube of the present utility model is contained in the pressure ram front position on secondary cylinder, described upper material space is located between mould and ingot-containing tube, after material loading, ingot-containing tube is shifted to die location, the squeezed depression bar of charge bar is squeezed into and is full of in the extrusion chamber of ingot-containing tube, extruding work can be completed through mould, when returning, ingot-containing tube and pressure ram only need return the length slightly larger than loading rod, charge bar entirety can be put into, pressure ram impulse stroke decreases 1/3rd thus, reduce lost motion simultaneously, namely the impulse stroke of conventional extruder is two section bar bar length+process allowances, the impulse stroke of the utility model extruder pressure ram is a section bar bar length+process allowance, therefore, the utility model effectively raises the cost of manufacture that productivity ratio also reduces complete machine, save material.
2, asynchronous machine oil pump group drives to be improved to and adopts servo motor driven oil pump group by the utility model oil supply system, when main frame place what holding state or when not needing full flow to work, PLC can according to extruding the working speed or the holding state that hasten automatically to control every platform servomotor pump group, give full play to the effect of sealed reservoir thus, decrease the flowing of work oil mass, thus decrease the heating of oil, to save energy 15%-20% than traditional control method, energy-saving effect is quite obvious.
3, fuel reserve tank of the present utility model is divided into two oil return fuel tank and pressurization oil cylinders being sealing, described oil return fuel tank is connected with master cylinder by the backflow oil circuit accessing master cylinder, oil return fuel tank is connected with pressurization oil cylinder by oil feed line, make backflow oil circuit, oil return fuel tank and oil feed line form the sealed circulating oil path between master cylinder and pressurization oil cylinder, the hydraulic oil forming fuel reserve tank is sealing state, avoid being mixed into dust and other impurities, keep the cleannes of hydraulic oil, delay the working life of hydraulic oil, and owing to using sealing load conveying liquid force feed, and then machine operation is stablized, reduce oil temperature, reduce hot-tempered sound.Solve existing oil way of extruding machine and atmosphere thus, affect the problem such as quality and useful life, the service property (quality) of effective raising extruder hydraulic oil and expanded service life, greatly lowering hydraulic oil consumption simultaneously, can more than 40% be reduced, making the working life of hydraulic oil by improving 2-3 existing service life doubly, reduce the cost changing oil and process waste oil, and reduce environmental pollution, and improve the service life of hydraulic servo dynamo oil pump package, economic benefit is quite obvious.
4, pressurization oil cylinder of the present utility model is provided with and acts on pressurization oil feed line fuel feeding to the piston of master cylinder, moved back and forth by piston and form the in-oil cylinder oil of pressurization and be squeezed to oil in master cylinder or in master cylinder and be back in pressurization oil cylinder by circulating oil path, form the oil supply system that extruder is sealed.Thus, promote by piston the operating efficiency more effectively improving hydraulic oil.
5, the utility model adopts fuel reserve tank to be divided into two oil return fuel tank and pressurization oil cylinders being sealing, master cylinder hydraulic pressure oil promotes pressurization by the piston of pressurization oil cylinder, it is made to form fuel tank little, but supplement the effect that oil mass is large, and pressure stability is effective, avoids prior art to adopt deadweight to carry out fuel feeding, greatly reduce the oil reserve of fuel tank thus, save production cost, reduce the overall volume of oil return fuel tank simultaneously, reduce use and take up room.
6, the utility model adopts short stroke extruding, servomotor pump set control system and pressurization fuel tank effectively to combine, and forms one and has energy-conservation, efficient extruder, and the hydraulic oil consumption of extruder reduces, operating lifetime.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
With reference to energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine shown in Fig. 1, include base 1, mould 2, ingot-containing tube 3, secondary cylinder 4, shear 7 and oil supply system 5, described mould 2, ingot-containing tube 3 and secondary cylinder 4 are arranged on base 1 successively; Described oil supply system 5 includes secondary cylinder, master cylinder 5-1 and fuel reserve tank 5-2, described ingot-containing tube 3 is in pressure ram 41 apical position, this pressure ram 41 promotes charge bar at the extrusion chamber of ingot-containing tube 3, produces squeeze function, when ingot-containing tube 3 displacement and between mould 2, is formed with material space 6; Described fuel reserve tank 5-2 is divided into two oil return fuel tank 5-21 and pressurization oil cylinder 5-22 being sealing; Described oil return fuel tank 5-21 is connected with master cylinder 5-1 by the backflow oil circuit 5-41 of access master cylinder 5-1, oil return fuel tank 5-21 is connected with pressurization oil cylinder 5-22 by oil feed line 5-42, makes the circulating oil path that backflow oil circuit 5-41, oil return fuel tank 5-21 and oil feed line 5-42 form master cylinder 5-1 and pressurize between oil cylinder 5-22; Described pressurization oil cylinder 5-22 is provided with and acts on pressurization oil feed line 5-42 fuel feeding to the piston 5-221 of master cylinder 5-1, the oil be squeezed in master cylinder 5-1 or in master cylinder 5-1 by the piston 5-221 oil moved back and forth in formation pressurization oil cylinder 5-22 is back in pressurization oil cylinder 5-22 by circulating oil path, forms the oil supply system that extruder is sealed; Described oil supply system 5 is controlled by multiple oil pump of servo motor group.
In embodiment, the impulse stroke distance of described ingot-containing tube 3 is slightly larger than charging length; The impulse stroke distance of the pressure ram 41 of master cylinder 5-1 and secondary cylinder 4, slightly larger than charging length, is slightly less than the impulse stroke of ingot-containing tube 3.Namely the impulse stroke distance of ingot-containing tube 3 equals the length of charging charge bar or the impulse stroke distance of ingot-containing tube 3 length slightly larger than charging charge bar, further, the impulse stroke distance of described ingot-containing tube 3 is greater than the 3-20cm of a section bar charge bar length, is convenient to the extrusion chamber that section bar charge bar puts into ingot-containing tube 3 carries out charging with the width reserving upper material space 6; The impulse stroke distance of described master cylinder 5-1, secondary cylinder 4 and pressure ram 41 equals charging charge bar length, namely the length of two section bar charge bars is equaled, or the impulse stroke distance of the pressure ram 41 of secondary cylinder 4 is greater than a charging charge bar length, namely be greater than the 3-20cm of a section bar charge bar, the extrusion chamber exiting ingot-containing tube 3 with pressure ram 51 is convenient to the extruding that the overall extrusion chamber putting into ingot-containing tube 3 of section bar charge bar carries out charging next time.The clipped position of described shear 7 is positioned at material space 6 place, is located between mould 2 and ingot-containing tube 3.Described ingot-containing tube 3 is driven by the hydraulic push rod 31 of base 1 both sides, makes ingot-containing tube 3 return mobile working on base 1.The pressure ram 41 of described secondary cylinder 4 is provided with a mobile guide slide block 42, and this mobile guide slide block 42 is integral type structure with ingot-containing tube 3, and mobile guide slide block 42 acts on the extrusion chamber that pressure ram 41 enters ingot-containing tube 3 accurately.
Described oil return fuel tank 5-21 is positioned at the top of extruder 5-5, this oil return fuel tank 5-21 and extruder 5-5 is vertical type integral structure, this oil return fuel tank 5-21 controls the backflow oil circuit 5-41 of extruder master cylinder 5-1 by one or more servomotor oil pump of servo motor group 5-6 and one or more groups electromagnetic valve 5-7, described pressurization oil cylinder 5-22 is positioned at extruder 5-5 side, this pressurization oil cylinder 5-22 and extruder are split-type structural, pressurization oil cylinder 5-22 is single-action telescopic sleeve master cylinder, promote piston 5-221 by double piston-rod 5-222 to pressurize fuel feeding or the hydraulic oil that pulls piston 5-221 to absorb master cylinder 5-1 to reflux through circulating oil path to oil feeding line 5-42.
Described prefill valve 5-3 is triple valve, port one 5-31 of this triple valve 5-3 accesses master cylinder 5-1, port two 5-32 connects with the output circuit of oil return fuel tank 5-21, port three 5-33 is connected with in pressurization oil cylinder 5-22, the output circuit of its oil return fuel tank 5-21 is connected with pressurization oil cylinder 5-22 by triple valve, forms the oil return circulation line of pressurization oil cylinder 5-22.
During above-mentioned oil supply system 5 fuel feeding: by each functions of the equipments oil cylinder of multiple Serve Motor Control extruder, one group of driven by servomotor gear controls Telescopic oil tank 5-222, promote piston 5-221, during promotion, produce a constant pressure, make the pressure of pressurization oil cylinder 5-22 energy constant maintenance 2-3bar, when main system oil pump of servo motor group and supercharging oil pump of servo motor group drive master cylinder to retreat, and hydraulic oil overflow in telescopic oil cylinder keep constant pressure after oil return to oil return fuel tank 5-21, make the pressure that can keep 2-3bar in pressurization oil cylinder 5-22 all the time, the hydraulic oil of master cylinder 5-1 is back in pressurization oil cylinder 5-22.
During above-mentioned extruder extrudate: section bar charge bar is put into by the upper material space 6 first, between mould 2 and ingot-containing tube 3, section bar charge bar is fixed by pressure ram 51 and mould 3; Secondly, secondary cylinder 4 is started and pressure rod 41 pushes up steady charge bar, make mobile ingot-containing tube 3 to die location place simultaneously, just section bar charge bar is inserted in the extrusion chamber of ingot-containing tube 3 simultaneously, now pressure ram 51 is slack, when ingot-containing tube 3 moves to die location, pressure ram 41 pushes charge bar, is full of the extrusion chamber of ingot-containing tube 3, and the charge bar in extrusion chamber is clamp-oned mould; Then, backstroke resets, ingot-containing tube 3 and pressure ram 41 together backstroke, ingot-containing tube 3 backstroke distance position is slightly larger than the length of section bar charge bar, this length is the width of material space 6, the width of described upper material space 6, slightly larger than section bar charge bar, only need be suitable for mount type material bar, repeats above-mentioned steps and can repeat profile extrusion work.
The utility model adopts one or more driven by servomotor high-pressure plunger pump group to carry out fuel feeding through oil path block and valve to master cylinder 5-1 and secondary cylinder 4, detect by being arranged on the section bar temperature that electronic ruler on mainframe detects the speed of master cylinder and position and infrared thermometer on extruder discharging opening detects, all data realize constant speed and Isothermal Extrusion by controlling oil pump of servo motor group after PLC computing.
The utility model adopts one or more driven by servomotor vane pump or gear pump to provide power through oil path block and valve sets to scissors, ingot-containing tube oil cylinder i.e. other auxiliary movements, and auxiliary movement completes rear motor pump group and enters stopping holding state.
The utility model adopts a driven by servomotor gear oil pump of servo motor group, through oil circuit and valve to single-acting extension sleeve oil cylinder 222 fuel feeding, make to keep constant pressure in cylinder efficient, make can keep 2-3bar oil pressure in pressurization oil cylinder 22, by being arranged on the data that detect of pressure sensor on pressurization oil cylinder 22 through the running rotating speed of PLC operation control servomotor pump group or stopping, carrying out closed-loop control.
Claims (4)
1. energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine, include base (1), mould (2), ingot-containing tube (3), secondary cylinder (4), shear (7) and oil supply system (5), described mould (2), ingot-containing tube (3) and secondary cylinder (4) are arranged on base (1) successively; Described oil supply system (5) includes master cylinder (5-1) and the fuel reserve tank (5-2) of plunger, it is characterized in that:
Described extruder is short stroke extruder, the ingot-containing tube (3) of extruder is located at pressure ram (41) apical position, this pressure ram (41) forms with the extrusion chamber of ingot-containing tube (3) the profile extrusion function promoted back and forth, when ingot-containing tube (3) displacement and between mould (2), be formed with upper material space (6);
Described fuel reserve tank (5-2) is divided into two oil return fuel tank (5-21) and pressurizations oil cylinder (5-22) being sealing; Described oil return fuel tank (5-21) is connected with master cylinder (5-1) by the backflow oil circuit (5-41) of access master cylinder (5-1), oil return fuel tank (5-21) is connected with pressurization oil cylinder (5-22) by oil feed line (5-42), makes the circulating oil path that backflow oil circuit (5-41), oil return fuel tank (5-21) and oil feed line (5-42) form master cylinder (5-1) and pressurize between oil cylinder (5-22); Described pressurization oil cylinder (5-22) is provided with and acts on pressurization oil feed line (5-42) fuel feeding to the piston of master cylinder (5-1) (5-221), the oil be squeezed in master cylinder (5-1) or in master cylinder (5-1) by piston (5-221) oil moved back and forth in formation pressurization oil cylinder (5-22) is back in pressurization oil cylinder (5-22) by circulating oil path, forms the oil supply system that extruder is sealed;
Described oil supply system (5) is controlled by multiple oil pump of servo motor group (5-6).
2. energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine according to claim 1, it is characterized in that: described oil return fuel tank (5-21) is positioned at the top of extruder (5-5), this oil return fuel tank (5-21) and extruder (5-5) are in vertical type structure, and this oil return fuel tank (5-21) controls the backflow oil circuit (5-41) of extruder master cylinder (5-1) by one or more oil pump of servo motor groups (5-6) and one or more groups electromagnetic valve (5-7); Described pressurization oil cylinder (5-22) is positioned at extruder (5-5) rear portion.
3. energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine according to claim 1, it is characterized in that: described pressurization oil cylinder (5-22) promotes its piston (5-221) by single-acting extension sleeve oil cylinder (222), in pressurization oil cylinder, produce constant pressure.
4. energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine according to claim 1, it is characterized in that: the output circuit of described oil return fuel tank (5-21) is connected with pressurization oil cylinder (5-22) by triple valve (5-3), the oil return circulation line of formation pressurization oil cylinder (5-22), the port one (5-31) of this triple valve (5-3) accesses master cylinder (5-1), port two (5-32) connects with the output circuit of oil return fuel tank (5-21), port three (5-33) is connected with in pressurization oil cylinder (5-22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520113726.6U CN204583884U (en) | 2015-02-16 | 2015-02-16 | Energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520113726.6U CN204583884U (en) | 2015-02-16 | 2015-02-16 | Energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine |
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| Publication Number | Publication Date |
|---|---|
| CN204583884U true CN204583884U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520113726.6U Withdrawn - After Issue CN204583884U (en) | 2015-02-16 | 2015-02-16 | Energy-conservation, efficient, enclosed pressurization fuel feeding Form-bar Press Machine |
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| CN (1) | CN204583884U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624691A (en) * | 2015-02-16 | 2015-05-20 | 梁润明 | Energy-saving high-efficiency closed-type pressurizing oil supply sectional material extruder |
| CN106180234A (en) * | 2016-07-20 | 2016-12-07 | 佛山市业精机械制造有限公司 | A kind of low speed aluminum section extruder |
| EP3922449A1 (en) * | 2020-06-10 | 2021-12-15 | Robert Bosch GmbH | Hydraulic unit for a continuous extruder of such units and extruder with the hydraulic unit |
-
2015
- 2015-02-16 CN CN201520113726.6U patent/CN204583884U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624691A (en) * | 2015-02-16 | 2015-05-20 | 梁润明 | Energy-saving high-efficiency closed-type pressurizing oil supply sectional material extruder |
| CN106180234A (en) * | 2016-07-20 | 2016-12-07 | 佛山市业精机械制造有限公司 | A kind of low speed aluminum section extruder |
| EP3922449A1 (en) * | 2020-06-10 | 2021-12-15 | Robert Bosch GmbH | Hydraulic unit for a continuous extruder of such units and extruder with the hydraulic unit |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160519 Address after: Nanhai Shishan town Economic Development Zone in the South China Sea North Road 528225 Guangdong city of Foshan province No. 14 Patentee after: Foshan Nanhai Mingsheng Machine Manufacture Co., Ltd. Address before: 528248 Guangdong city of Foshan province Dali Town, Nanhai District of Huangqi East Village 5 lane 14 Patentee before: Liang Runming |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150826 Effective date of abandoning: 20161005 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |