CN209129948U - A kind of hydraulic system for lid maker - Google Patents
A kind of hydraulic system for lid maker Download PDFInfo
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- CN209129948U CN209129948U CN201821753104.XU CN201821753104U CN209129948U CN 209129948 U CN209129948 U CN 209129948U CN 201821753104 U CN201821753104 U CN 201821753104U CN 209129948 U CN209129948 U CN 209129948U
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- 238000000465 moulding Methods 0.000 claims abstract description 16
- 239000002828 fuel tank Substances 0.000 claims description 52
- 239000007788 liquid Substances 0.000 claims description 38
- 239000012530 fluid Substances 0.000 claims description 31
- 238000001914 filtration Methods 0.000 claims description 23
- 238000005086 pumping Methods 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 16
- 238000013016 damping Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000003825 pressing Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 353
- 239000010720 hydraulic oil Substances 0.000 description 7
- 230000003749 cleanliness Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010295 mobile communication Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010729 system oil Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000004092 self-diagnosis Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Abstract
The utility model provides a kind of hydraulic system for lid maker, pass through the Combination Design of high tension loop device, middle pressure loop apparatus, low tension loop device, loop apparatus is pressed to realize the mould assembling action of molding machine in utilization, the pressing mold forming action of molding machine is realized using high tension loop device, the stripping action of molding machine is realized using low tension loop device, each device part can independently control, and have the advantages that the speed of service is fast, reliability and stability is high, improve bottle capper production efficiency.
Description
Technical field
The utility model relates to a kind of hydraulic systems, more specifically to a kind of hydraulic system for lid maker.
Background technique
Currently, existing lid maker is mainly based on low speed machine, using common HYDRAULIC CONTROL SYSTEM, using constant displacement pump and
Ordinary motor combination carries out control of flow and pressure by Normal hydraulic valve, or uses differential technique, but the letter of its structure
It is single, it is unable to reach overseas high speed lid maker technical level, high speed lid maker equipment relies primarily on external import, currently, existing
Hydraulic control system generally uses differential circuit effect, and speed is slow, is not able to satisfy the operation of high speed machine；And circuit impact it is big,
Pressure oscillation is big, and return oil pressure vibration is big；Hydraulic control system is easy to appear the phenomenon of high, middle oil circuit string oil；Meanwhile at this stage
In the market since the technology of lid maker hydraulic control is also lack of standardization, each large size hydraulic enterprise does not pay attention to the market also, causes now
Most hydraulic system is designed and produced by workshop-based little company, ununified design standard, and product quality is irregular
It is uneven, also it is more primary open and close control in terms of function, is unable to reach the requirement of intelligent control, hydraulic to lid maker can not set
It is standby to carry out remote intelligent monitoring, control.
Utility model content
That technical problem to be solved by the utility model is to provide a kind of speeds of service is fast, reliability and stability is high, production
The high-efficient hydraulic system for lid maker.
In order to solve the above-mentioned technical problem, a kind of hydraulic system for lid maker provided by the utility model, including at
Type device, high tension loop device, middle pressure loop apparatus, low tension loop device and fuel tank, the molding machine be equipped with hydraulic cylinder and
Three position four-way directional control valve, the hydraulic cylinder are equipped with the first oil pressure chamber and the second oil pressure chamber, and the three position four-way directional control valve is equipped with the
One hydraulic fluid port, the second hydraulic fluid port, third hydraulic fluid port and the 4th hydraulic fluid port；
The high tension loop device includes high pressure pump group, high-pressure oil feed road and high pressure oil return line, the high-pressure oil feed road
Oil inlet is connect with the high pressure pump group, and the oil in the fuel tank can be led to high-pressure oil feed road, the height by the high pressure pump group
The oil outlet of pressure oil passage passes sequentially through first hydraulic fluid port, the 4th hydraulic fluid port is connected to the first oil pressure chamber, the height
The oil inlet for pushing back oil circuit is connected to the second oil pressure chamber, and the oil outlet of the high pressure oil return line is connected to fuel tank, and the high pressure supplies
Oil circuit is equipped with high-pressure oil feed control assembly, and the high pressure oil return line is equipped with high pressure oil return control assembly；
Medium pressure loop apparatus include medium lift pump group, middle pressure oil passage and in push back oil circuit, medium pressure oil passage
Oil inlet is connect with medium pressure pump group, and the oil in the fuel tank can be led to middle pressure oil passage by medium pressure pump group, it is described in
Pressure oil passage oil outlet pass sequentially through second hydraulic fluid port, the 4th hydraulic fluid port is connected to the first oil pressure chamber, it is described in
The oil inlet for pushing back oil circuit is connected to the second oil pressure chamber, and the oil outlet of medium pressure oil return line is connected to fuel tank, and medium pressure supplies
Oil circuit be equipped with middle pressure oil-feeding control component, medium pressure oil return line be equipped in push back oily control assembly；
The low tension loop device includes medium pressure pump group, low pressure oil supply road and low pressure oil return line, the low pressure oil supply
The oil inlet on road is connect with medium pressure pump group, and the oil in the fuel tank can be led to low pressure oil supply road, institute by medium pressure pump group
The oil outlet for stating low pressure oil supply road is connected to the second oil pressure chamber, and the oil inlet of the low pressure oil return line passes sequentially through the third oil
Mouth, the 4th hydraulic fluid port are connected to the first oil pressure chamber, and the oil outlet of the low pressure oil return line is connected to the fuel tank, described
Low pressure oil supply road is equipped with low pressure oil supply control assembly, and the low pressure oil return line is equipped with low pressure oil return control assembly.
Preferably, the high-pressure oil feed control assembly is successively arranged on the high-pressure oil feed road according to fuel feeding direction
Check valve, the first speed governing valve and first flow sensor, the high-pressure oil feed road between the check valve and first speed governing valve
It is equipped with the first accumulator, first pressure sensor, first pressure relay, first pressure gauge and high pressure oil return bypass, it is described
High pressure oil return bypass be connected to the fuel tank, and the high pressure oil return is bypassed equipped with the first Solenoid ball valve, the check valve into
First is connected between the high pressure oil return bypass of the oil outlet side on the high-pressure oil feed road and Solenoid ball valve of hydraulic fluid port side to overflow
Valve is flowed, the oil inlet of first overflow valve is connect with high-pressure oil feed road, the oil outlet of first overflow valve and high pressure oil return
Bypass connection；It is connected between the high pressure oil return bypass of the oil outlet side of first overflow valve and first Solenoid ball valve
Electricity liquid ratio relief valve, the oil inlet of the electricity liquid ratio relief valve are connect with first overflow valve, and the electric-hydraulic proportion is overflow
The oil outlet and high pressure oil return bypass for flowing valve connect, and proportional amplifier is equipped at the electricity liquid ratio relief valve；
The high pressure oil return control assembly is successively arranged third flow biography according to oil return direction on the high pressure oil return line
Sensor and the second overflow valve, the high pressure oil return line between second overflow valve and the third flow sensor are equipped with third
Pressure gauge and third pressure sensor；
First speed governing valve, the first flow sensor, the first pressure sensor, the first pressure relay
Device, first Solenoid ball valve, the electricity liquid ratio relief valve, the third flow sensor, the third pressure sensor
It is connect respectively with electric control system, electric control system is connect by wireless network with controlling terminal.
Preferably, medium pressure oil-feeding control component is successively arranged in medium pressure oil passage according to fuel feeding direction
One-way throttle valve, two-way directional valve, the second speed governing valve and second flow sensor are equipped with the second electromagnetism at the two-way directional valve
Ball valve, second Solenoid ball valve for realizing two-way directional valve spool be opened and closed, the oil outlet of medium pressure pump group with it is described
Middle pressure oil passage between the oil inlet of one-way throttle valve pushes back oily bypass, medium pressure oil return bypass and the oil in being equipped with
Case connection, medium pressure oil return bypass are equipped with two-way overflow valve, are equipped with third Solenoid ball valve at the two-way overflow valve, and described the
Three Solenoid ball valves are opened and closed for realizing the spool of two-way overflow valve, between second speed governing valve and the second flow sensor
Middle pressure oil passage be equipped with the second accumulator, second pressure sensor, second pressure relay, third pressure switch and the
Two pressure gauges；
Medium pressure oil return control assembly is successively arranged the third stream according to oil return direction on medium pressure oil return line
Quantity sensor and second overflow valve, between second overflow valve and the third flow sensor in push back on oil circuit
Equipped with the third pressure gauge and the third pressure sensor；
The two-way directional valve, second speed governing valve, the second flow sensor, second Solenoid ball valve, institute
State third Solenoid ball valve, the second pressure sensor, the second pressure relay, the third pressure switch respectively with
Electric control system connection.
Preferably, the low pressure oil supply control assembly is successively arranged on the low pressure oil supply road according to fuel feeding direction
The one-way throttle valve, second overflow valve, the third flow sensor and third accumulator, second overflow valve and
Middle pressure oil passage between the third flow sensor is equipped with the third pressure gauge and the third pressure sensor, institute
The low pressure oil supply road stated between the oil outlet of medium lift pump group and the oil inlet of the one-way throttle valve is equipped with low pressure oil return bypass,
The low pressure oil return bypass is connected to the fuel tank, and the low pressure oil return bypass is equipped with the two-way overflow valve, and the two-way is overflow
It flows and is equipped with the third Solenoid ball valve at valve, the third Solenoid ball valve is opened and closed for realizing the spool of two-way overflow valve；
The low pressure oil return control assembly be successively arranged on the low pressure oil return line according to oil return direction damping device and
4th flow sensor；4th flow sensor is connect with electric control system.
Preferably, the low pressure oil return line is at least provided with one group of horizontal oil return line and vertical oil return line, it is described vertical
For oil return line perpendicular to the horizontal oil return line, the horizontal oil return line and the vertical oil return line is arranged in the damping device
Junction, and the buffer function power direction of the damping device is opposite with the oil return direction of the horizontal oil return line.
Preferably, the damping device is bumper or plunger type accumulator.
Preferably, the hydraulic system for lid maker further includes heating device, the heating device setting exists
In the fuel tank, and it is located at the side at the oil pumping end close to the oil pumping end and medium pressure pump group of the high pressure pump group；It is described to add
Thermal is connect with electric control system, and electric control system is connect by wireless network with controlling terminal.
Preferably, the hydraulic system for lid maker further includes cooling cycle filter device, the cooling is followed
Ring filter device is arranged on the fuel tank, and is located remotely from the oil pumping at the oil pumping end and medium pressure pump group of the high pressure pump group
The side at end, the cooling cycle filter device are equipped with cold filtration circuit, the oil inlet in the cold filtration circuit and fuel-displaced
Mouth is connected to the fuel tank, is successively arranged the first oil filter, cooling according to the flow direction of oil on the cold filtration circuit
Pump group, water cooler, the second oil filter and third oil filter are filtered, first oil filter is primary filter, second filter
Oily device is middle rank filtering, and the third oil filter is advanced filtering, and second oil filter and the third oil filter are equipped with
Obstruction alarm device, the water cooler are connect by solenoid valve with cooling water source；The obstruction alarm device and electrical control
System connection, electric control system are connect by wireless network with controlling terminal.
Preferably, the oil outlet of the low pressure oil return line is equipped with magnetic filter device, the magnetic filter device
It is arranged in the fuel tank, and is located remotely from the side at the oil pumping end of the high pressure pump group and the oil pumping end of medium pressure pump group,
And it is mutually close with the oil inlet in the cold filtration circuit.
Preferably, the fuel tank is equipped with temperature sensor, liquid level sensor, air cleaner and liquidometer；It is described
Temperature sensor, the liquid level sensor are connect with electric control system respectively, and electric control system passes through wireless network and control
Terminal connection processed.
Implement a kind of hydraulic system for lid maker of the utility model, compared with prior art, have has as follows
Beneficial effect:
1, the utility model is utilized by the Combination Design of high tension loop device, middle pressure loop apparatus, low tension loop device
Middle pressure loop apparatus realizes the mould assembling action of molding machine, realizes that the pressing mold of molding machine forms using high tension loop device and moves
Make, the stripping action of molding machine is realized using low tension loop device, each device part can independently control, and have fortune
Scanning frequency degree is fast, reliability and stability is high, improves the advantages of bottle capper production efficiency.
2, return pressure can be reduced when demoulding oil return by damping device being increased on the low pressure oil return line of the utility model
Fluctuation has the advantages that demoulding impact is small, while dividing the oil cylinder of food tray to shield host rotary body.
3, one-way throttle valve is used in middle pressure oil passage, i.e. check valve is connected in parallel with throttle valve, has been able to solve high pressure
Circuit pushes back road swap oil problem in.
4, the hydraulic system of the utility model passes through flow sensor, pressure sensor, pressure switch, temperature sensing
Device, liquid level sensor etc. can be carried out flow, pressure, temperature, oil cleanliness to each branch and monitor automatically, pass through controlling terminal
(i.e. Central Control Room or mobile communication equipment) can Local or Remote carry out linkage control, and the acquisition of these data be conducive to help set
Standby producer carries out maintenance tracking, establishes database, while being conducive to equipment and carrying out real-time production monitoring and control using producer, has
There is stronger failure self-diagnosis function, realizes intelligentized control method.
5, the utility model passes through the setting of cooling cycle filter device, is effective to ensure that oil cleanliness, while cold
But the temperature of hydraulic oil is effectively reduced in the design of circulation filter, ensure that the viscosity of hydraulic oil reaches requirement, realizes
Recycling for hydraulic oil, has saved cost, improves the effective rate of utilization of resource.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, the attached drawing of embodiment will be made below simple
Ground introduction.
Fig. 1 is a kind of structural schematic diagram of hydraulic system for lid maker provided by the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of preferred embodiment of hydraulic system for lid maker provided by the utility model, including at
Type device 100, high tension loop device, middle pressure loop apparatus, low tension loop device and fuel tank 200, the molding machine 100 are equipped with
Hydraulic cylinder 101 and three position four-way directional control valve 102, the hydraulic cylinder 101 are equipped with the first oil pressure chamber 103 and the second oil pressure chamber 104, institute
Three position four-way directional control valve 102 is stated equipped with the first hydraulic fluid port 105, the second hydraulic fluid port 106, third hydraulic fluid port 107 and the 4th hydraulic fluid port 108.
The high tension loop device includes high pressure pump group 301, high-pressure oil feed road 302 and high pressure oil return line 303, the high pressure
The oil inlet of oil passage 302 is connect with the high pressure pump group 301, and the high pressure pump group 301 can draw the oil in the fuel tank 200
To high pressure oil passage 302, the oil outlet on the high-pressure oil feed road 302 passes sequentially through first hydraulic fluid port 105, the 4th hydraulic fluid port
108 are connected to the first oil pressure chamber 103, and the oil inlet of the high pressure oil return line 303 is connected to the second oil pressure chamber 104, described
The oil outlet of high pressure oil return line 303 is connected to fuel tank 200, and the high-pressure oil feed road 302 is equipped with high-pressure oil feed control assembly, institute
High pressure oil return line 303 is stated equipped with high pressure oil return control assembly.
Medium pressure loop apparatus include medium lift pump group 401, middle pressure oil passage 402 and in push back oil circuit 403, medium pressure
The oil inlet of oil passage 402 is connect with medium pressure pump group 401, and medium pressure pump group 401 can draw the oil in the fuel tank 200
To middle pressure oil passage 402, the oil outlet of medium pressure oil passage 402 passes sequentially through second hydraulic fluid port 106, the 4th hydraulic fluid port
108 are connected to the first oil pressure chamber 103, and the oil inlet of medium pressure oil return line 403 is connected to the second oil pressure chamber 104, described
In push back the oil outlet of oil circuit 403 and be connected to fuel tank 200, medium pressure oil passage 402 is equipped with middle pressure oil-feeding control component, institute
Pushed back in stating oil circuit 403 be equipped in push back oily control assembly.
The low tension loop device includes medium pressure pump group 401, low pressure oil supply road 501 and low pressure oil return line 502, described
The oil inlet on low pressure oil supply road 501 is connect with medium pressure pump group 401, and medium pressure pump group 401 can will be in the fuel tank 200
Oil leads to low pressure oil supply road 501, and the oil outlet on the low pressure oil supply road 501 is connected to the second oil pressure chamber 104, the low pressure oil return
The oil inlet on road 502 passes sequentially through the third hydraulic fluid port 107, the 4th hydraulic fluid port 108 is connected to the first oil pressure chamber 103,
The oil outlet of the low pressure oil return line 502 is connected to the fuel tank 200, and the low pressure oil supply road 501 is equipped with low pressure oil supply control
Component processed, the low pressure oil return line 502 are equipped with low pressure oil return control assembly.
The utility model passes through the Combination Design of high tension loop device, middle pressure loop apparatus, low tension loop device as a result,
It presses loop apparatus to realize the mould assembling action of molding machine in utilization, realizes that the pressing mold of molding machine forms using high tension loop device
The stripping action of molding machine is realized in movement using low tension loop device, and each device part can independently control, have
The speed of service is fast, reliability and stability is high, improves the advantages of bottle capper production efficiency.
Illustratively, the high-pressure oil feed control assembly is successively set on the high-pressure oil feed road 302 according to fuel feeding direction
There are check valve 304, the first speed governing valve 305 and first flow sensor 306, the check valve 304 and first speed governing valve 305
Between high-pressure oil feed road 302 be equipped with the first accumulator 307, first pressure sensor 308, first pressure relay 309, the
One pressure gauge 310 and high pressure oil return bypass 311, the high pressure oil return bypass 311 are connected to the fuel tank 200, and the height pushes back
Oil bypass 311 is equipped with the first Solenoid ball valve 312, the high-pressure oil feed road 302 of the oil inlet side of the check valve 304 and described
The high pressure oil return of the oil outlet side of first Solenoid ball valve 312 bypasses and is connected with the first overflow valve 313 between 311, and described first
The oil inlet of overflow valve 313 is connect with high-pressure oil feed road 302, and the oil outlet of first overflow valve 313 and high pressure oil return bypass
311 connections；The oil outlet side of first overflow valve 313 and first Solenoid ball valve 312 high pressure oil return bypass 311 it
Between be connected with electricity liquid ratio relief valve 314, the oil inlet of the electricity liquid ratio relief valve 314 and first overflow valve 313 connect
It connects, the oil outlet of the electricity liquid ratio relief valve 314 is connect with high pressure oil return bypass 311, at the electricity liquid ratio relief valve 314
Equipped with proportional amplifier 315.
The high pressure oil return control assembly is successively arranged third flow on the high pressure oil return line 303 according to oil return direction
Sensor 316 and the second overflow valve 317, the height between second overflow valve 317 and the third flow sensor 316 push back
Oil circuit 303 is equipped with third pressure gauge 318 and third pressure sensor 319.
First speed governing valve 305, the first flow sensor 306, the first pressure sensor 308, described
One pressure switch 309, first Solenoid ball valve 312, the electricity liquid ratio relief valve 314, the third flow sensor
316, the third pressure sensor 319 is connect with electric control system respectively, and electric control system passes through wireless network and control
Terminal connection processed.
The check valve 304 is preferably that screw-type inserts check valve, and first speed governing valve 305 is preferably screw-type inserting
Speed governing valve, first Solenoid ball valve 312 are preferably that screw-type inserts Solenoid ball valve, and first overflow valve 313 is preferably spiral shell
Line formula inserts overflow valve, and second overflow valve 317 is preferably that screw-type inserts overflow valve.
Wherein, the check valve 304 is used to prevent the oily reverse flow on high-pressure oil feed road 302；The first flow passes
Sensor 306, which is able to detect the flow of fuel feeding and is converted to electric signal, is sent to electric control system；Electric control system is according to
The signal that one flow sensor 306 sends over adjusts high-pressure oil feed road 302 by first speed governing valve 305 in real time and passes through
Flow and eliminate load variation flow is passed through to high-pressure oil feed road 302 influence；First accumulator 307 plays auxiliary and supplies
The effect of oil, when high tension loop device oil mass is greater than the flow of the output of high pressure pump group 301, inadequate flow is by the first accumulation of energy
Device 307 provides, and when hydraulic system oil mass is less than the flow of the output of high pressure pump group 301, extra flow adds to the first storage
In energy device 307, meanwhile, play a part of to buffer shock-absorbing during 100 fast turn-around of molding machine or quick shutdown；Institute
It states first pressure sensor 308 and is able to detect the oil pressure on high-pressure oil feed road 302 and is converted to electric signal and be sent to electrical control system
System；The signal that electric control system is sended over according to first pressure sensor 308, by first pressure relay 309 to
One Solenoid ball valve 312 is controlled, and the first Solenoid ball valve 312 can control the on-off of high pressure oil return bypass 311；First pressure
Power table 310 is used to measure and show the oil pressure value on high-pressure oil feed road；First overflow valve 313 can set threshold values according to it,
High-pressure oil feed road 302 and high pressure oil return bypass 311 are connected, the oil liquid on high-pressure oil feed road 302 is made to flow to fuel tank 200, it is fixed to rise
Pressurized overflow effect；The electricity liquid ratio relief valve 314 can adjust valve opening according to the signal that electric control system issues,
And the flow of overflow can be set up in proportion, pilot valve is done using electricity liquid ratio relief valve 314, can guarantee that flow is big, while can be made
The control parameter of system is automatically held in the range of setting, keeps the control of system more accurate；The third flow sensor 316
It is able to detect on high pressure oil return line 303 flow of oil return and is converted to electric signal and be sent to electric control system；Described second overflows
Threshold values can be set according to it by flowing valve 317, and the oil liquid on high pressure oil return line 303 is flowed to fuel tank 200, plays level pressure overflow；
Third pressure sensor 319, which is able to detect the oil pressure of high pressure oil return line 303 and is converted to electric signal, is sent to electric control system；
The third pressure gauge 318 is used to measure and show the oil pressure value of high pressure oil return line 303.
Illustratively, the high pressure pump group 301 includes shaft coupling, variable-frequency motor, vane pump and oil-suction oil filter, oil suction filter
Oily device is set to the oil inlet side of vane pump, and variable-frequency motor is connect by shaft coupling with vane pump, and vane pump is specific speed of rotation
High pressure vane pump ensure that output flow can need according to system and change, more energy conservation using variable-frequency motor；Together
When, variable-frequency motor is connect with electric control system, and electric control system is connect by wireless network with controlling terminal, to variable-frequency electric
Revolving speed in the encoder of machine carries out feedback inspection by the flow value of formula scales and the detected value of first flow sensor 306
It surveys, the operation conditions of variable-frequency motor can be sent to controlling terminal according to the testing result by electric control system, if detection knot
Fruit is abnormal, then alarms, and realizes variable-frequency motor Self-Test Diagnostics function, further ensures the reliability of hydraulic system.
Illustratively, medium pressure oil-feeding control component is successively set in medium pressure oil passage 402 according to fuel feeding direction
There are one-way throttle valve 404, two-way directional valve 405, the second speed governing valve 406 and second flow sensor 407, the two-way directional valve
Be equipped with the second Solenoid ball valve 408 at 405, the oil inlet of the oil outlet of medium pressure pump group 401 and the one-way throttle valve 404 it
Between middle pressure oil passage be equipped in push back oil bypass 409, medium pressure oil return bypass 409 is connected to the fuel tank 200, described
In push back oil bypass 409 and be equipped with two-way overflow valve 410, third Solenoid ball valve 411 is equipped at the two-way overflow valve 410, it is described
Middle pressure oil passage 402 between second speed governing valve 406 and the second flow sensor 407 is equipped with the second accumulator 412, the
Two pressure sensors 413, second pressure relay 414, third pressure switch 415 and second pressure gauge 416.
Medium pressure oil return control assembly is successively arranged the third according to oil return direction on medium pressure oil return line 403
Flow sensor 316 and second overflow valve 317, between second overflow valve 317 and the third flow sensor 316
In push back oil circuit 403 equipped with the third pressure gauge 318 and the third pressure sensor 319.
The two-way directional valve 405, second speed governing valve 406, the second flow sensor 407, second electricity
Magnetic ball valve 408, the third Solenoid ball valve 411, the second pressure sensor 413, the second pressure relay 414, institute
It states third pressure switch 415 to connect with electric control system respectively, electric control system passes through wireless network and controlling terminal
Connection.
The one-way throttle valve 404 is preferably that screw-type inserts one-way throttle valve, and second speed governing valve 406 is preferably spiral shell
Line formula speed governing valve, the two-way directional valve 405 are preferably two-way plug-in valve direction valve, and the two-way overflow valve 410 is preferably two
Logical inserted valve overflow valve.
Wherein, the one-way throttle valve 404 (i.e. check valve and throttle valve is connected in parallel), for pressing oil passage in controlling
402 fuel supply flow rate and prevent it is middle pressure oil passage 402 on oily reverse flow, can effectively solve the problem that high tension loop in push back road
Swap oil problem；The two-way directional valve 405 utilizes pressure oil passage or low pressure oil supply road in the replacement control oil liquid flow direction of runner；
The second flow sensor 407, which is able to detect the flow of fuel feeding and is converted to electric signal, is sent to electric control system；Electrically
The signal that control system is sended over according to second flow sensor 407, in real time by being pressed in second speed governing valve 406 adjusting
The flow and eliminate the influence that load changes the flow that centering pressure oil passage 402 passes through that oil passage 402 passes through；Electric control system
According to the signal that second pressure sensor 413 sends over, by second pressure relay 414 to the second Solenoid ball valve 408 into
Row control, the second Solenoid ball valve 408 can be realized the spool opening and closing of two-way directional valve 405；The two-way overflow valve 410 being capable of root
Threshold values is set according to it, middle pressure oil passage 402 is pushed back into oil bypass 409 in and is connected, makes the oil liquid flow direction in middle pressure oil passage 402
Fuel tank 200 plays level pressure overflow；The signal that electric control system is sended over according to second pressure sensor 413 passes through
Three pressure switches 415 control third Solenoid ball valve 411, and the third Solenoid ball valve 411 can be realized two-way overflow
The spool of valve 410 is opened and closed；Second accumulator 412 plays the role of auxiliary feed-oil, presses loop apparatus to be greater than with oil mass in the middle
When the flow that medium lift pump group 401 exports, inadequate flow is provided by the second accumulator 412, in hydraulic system is less than with oil mass
When the flow that press pump group 401 exports, extra flow is added in the second accumulator 412, meanwhile, it is fast in molding machine 100
Play a part of to buffer shock-absorbing during speed operating or quick shutdown；The second pressure gauge 416 is in measuring and showing
Press the oil pressure value of oil passage 402；The third flow sensor 316 pushes back the flow of oil return on oil circuit 403 simultaneously in being able to detect
It is converted to electric signal and is sent to electric control system；Second overflow valve 317 can set threshold values according to it, and oil is pushed back by
Oil liquid on road 403 flows to fuel tank 200, plays level pressure overflow；The third pressure sensor 319 pushes back oil in being able to detect
The oil pressure on road 403 is simultaneously converted to electric signal and is sent to electric control system；The third pressure gauge 318 is in measuring and showing
Push back the oil pressure value of oil circuit 403.
Illustratively, medium pressure pump group 401 includes shaft coupling, variable-frequency motor, vane pump and oil-suction oil filter, oil suction filter
Oily device is set to the oil inlet side of vane pump, and variable-frequency motor is connect by shaft coupling with vane pump, and vane pump is specific speed of rotation
High pressure vane pump ensure that output flow can need according to system and change, more energy conservation using variable-frequency motor；Together
When, variable-frequency motor is connect with electric control system, and electric control system is connect by wireless network with controlling terminal, to variable-frequency electric
Revolving speed in the encoder of machine carries out feedback inspection by the flow value of formula scales and the detected value of second flow sensor 407
It surveys, the operation conditions of variable-frequency motor can be sent to controlling terminal according to the testing result by electric control system, if detection knot
Fruit is abnormal, then alarms, and realizes variable-frequency motor Self-Test Diagnostics function, further ensures the reliability of hydraulic system.
Illustratively, the low pressure oil supply control assembly is successively set on the low pressure oil supply road 501 according to fuel feeding direction
There are the one-way throttle valve 404, second overflow valve 317, the third flow sensor 316 and third accumulator 503, institute
The middle pressure oil passage 402 stated between the second overflow valve 317 and the third flow sensor 316 is equipped with the third pressure gauge
318 and the third pressure sensor 319, the oil inlet of the oil outlet of medium pressure pump group 401 and the one-way throttle valve 404
Between low pressure oil supply road be equipped with low pressure oil return bypass 506, low pressure oil return bypass 506 is connected to the fuel tank 200, institute
It states low pressure oil return bypass 506 and is equipped with the two-way overflow valve 410, be equipped with the third electromagnetic ball at the two-way overflow valve 410
Valve 411, the third Solenoid ball valve 411 are opened and closed for realizing the spool of two-way overflow valve 410.
It should be noted that being pushed back in the high pressure oil return line 303 of the high tension loop device, medium pressure loop apparatus
The low pressure oil supply road 501 of oil circuit 403 and the low tension loop device has shared oil circuit part；Medium pressure oil return bypass 409
It is bypassed with low pressure oil return bypass 506 to share；Medium pressure pump group 401, the third accumulator 503, the third stream
Quantity sensor 316, second overflow valve 317, the third pressure gauge 318, the third pressure sensor 319, the list
Equal to throttle valve 404 is common parts, saves system cost of manufacture.
The low pressure oil return control assembly is successively arranged damping device on the low pressure oil return line 502 according to oil return direction
504 and the 4th flow sensor 505.4th flow sensor 505 is connect with electric control system, and electric control system is logical
Wireless network is crossed to connect with controlling terminal.
Wherein, the one-way throttle valve 404 (i.e. check valve and throttle valve is connected in parallel), for controlling low pressure oil supply road
501 fuel supply flow rate and prevent the oily reverse flow on low pressure oil supply road 501；The third accumulator 503 plays auxiliary feed-oil
Effect, when hydraulic system with oil mass be greater than medium lift pump group 401 export flow when, inadequate flow is by third accumulator 503
It provides, when hydraulic system oil mass is less than the flow of the output of medium lift pump group 401, extra flow adds to third accumulator
In 503, meanwhile, play a part of to buffer shock-absorbing during 100 fast turn-around of molding machine or quick shutdown；Described
Three pressure sensors 319, which are able to detect the oil pressure on low pressure oil supply road 501 and are converted to electric signal, is sent to electric control system；Institute
Third pressure gauge 318 is stated for showing the oil pressure value on low pressure oil supply road 501；4th flow sensor 505 is able to detect low
It pushes back the flow of oil circuit 502 and is converted to electric signal and be sent to electric control system.
Illustratively, the low pressure oil return line 502 is described vertical at least provided with one group of horizontal oil return line and vertical oil return line
Oil return line is arranged perpendicular to the horizontal oil return line, the damping device 504 in the horizontal oil return line and the vertical oil return
The junction on road, and the buffer function power direction of the damping device 504 is opposite with the oil return direction of the horizontal oil return line, institute
Stating damping device 504 is bumper or plunger type accumulator.Increase on the low pressure oil return line 502 of the utility model as a result,
Add damping device 504 that can reduce return pressure fluctuation when demoulding oil return, has had the advantages that demoulding impact is small, while to master
Machine rotary body divides the oil cylinder of food tray to shield.
Illustratively, the hydraulic system for lid maker further includes heating device 600, and the heating device 600 is set
It sets in the fuel tank 200, and is located at the oil pumping end close to the oil pumping end and medium pressure pump group 401 of the high pressure pump group 301
Side；The reason of heating device 600 is used to that equipment to be prevented to be used under the lower environment of temperature, and hydraulic oil is because of self-characteristic
And equipment is caused to be unable to run；The heating device 600 is connect with electric control system, and electric control system passes through wireless network
It is connect with controlling terminal, the signal that the electric control system can be sended over according to temperature sensor 201, realizes that control adds
The operation of thermal.
Illustratively, the hydraulic system for lid maker further includes cooling cycle filter device 700, and the cooling follows
Ring filter device 700 is arranged on the fuel tank 200, and is located remotely from oil pumping end and the medium pressure of the high pressure pump group 301
The side at the oil pumping end of pump group 401, the cooling cycle filter device 700 are equipped with cold filtration circuit, and the cold filtration returns
The oil inlet and oil outlet on road are connected to the fuel tank 200, on the cold filtration circuit successively according to the flow direction of oil
Equipped with the first oil filter 701, cold filtration pump group 702, water cooler 703, the second oil filter 704 and third oil filter 705, institute
Stating the first oil filter 701 is primary filter, and second oil filter 704 is middle rank filtering, and the third oil filter 705 is advanced
Filtering；The water cooler 703 is connect by solenoid valve 706 with cooling water source, second oil filter 704 and third filter
Obstruction alarm device is equipped on oily device 705；The obstruction alarm device is connect with electric control system, and electric control system is logical
It crosses wireless network to connect with controlling terminal, the signal that the electric control system can be sended over according to obstruction alarm device,
The situation that second oil filter 704 and third oil filter 705 block is sent to controlling terminal to alarm；The solenoid valve 706
It is connect with electric control system, electric control system is connect by wireless network with controlling terminal, the electric control system energy
Enough control the switch of solenoid valve, on-off cooling water source.The cooling cycle filter device of the utility model can be protected effectively as a result,
Oil cleanliness is demonstrate,proved, while the temperature of hydraulic oil is effectively reduced in the design of cooling cycle filter device, ensure that the viscous of hydraulic oil
Degree reaches requirement, realizes recycling for hydraulic oil, has saved cost, improves the effective rate of utilization of resource.
Illustratively, the oil outlet of the low pressure oil return line 502 is equipped with magnetic filter device 800, the Magnetic filtration device
Device 800 is arranged in the fuel tank 200, and is located remotely from oil pumping end and the medium pressure pump group 401 of the high pressure pump group 301
Oil pumping end side, and it is mutually close with the oil inlet in the cold filtration circuit.The magnetic filter device 800 can remove
Contain solid content (such as iron filings) in oil liquid, and forms four with the first oil filter 701, the second oil filter 704 and third oil filter 705
Grade filtering, further increases the cleannes of oil liquid.
Illustratively, the fuel tank 200 is equipped with temperature sensor 201, liquid level sensor 202, air cleaner 203 and liquid
Position meter 204, the temperature sensor 201 and the liquid level sensor 202 are connect with electric control system respectively, electrical control system
System is connect by wireless network with controlling terminal.The temperature sensor 201 can detect the oil liquid temperature in fuel tank 200 as a result,
And be converted into electric signal and be sent to electric control system, what electric control system can be sended over according to temperature sensor 201
Signal controls heating device 600, realizes the monitoring to the oil liquid temperature in fuel tank 200；The liquid level sensor 202
The liquid level of oil liquid can be detected and be converted into electric signal and be sent to electric control system, electric control system can be according to level sensing
200 oil starvation situation of fuel tank is sent to controlling terminal and alarmed by the signal that device 202 sends over.The air cleaner 203
For removing the granulometric impurity in fuel tank in air.The liquidometer 204 is used to measure and show the liquid level of oil liquid.
It should also be noted that, the hydraulic system of the utility model passes through flow sensor, pressure sensor, pressure relay
The devices such as device, temperature sensor, liquid level sensor can be carried out flow, pressure, temperature, oil cleanliness to each branch and supervise automatically
Control, by controlling terminal (i.e. Central Control Room or mobile communication equipment) can Local or Remote carry out linkage control, have it is stronger therefore
Hinder self-diagnosing function, when the exception of flow, pressure, temperature, oil cleanliness etc. occurs in hydraulic device, hydraulic control
System processed can be automatically by mobile communication equipment (i.e. the short message mode of mobile communication equipment or APP client) to related system
Operator and equipment manufacturer carry out prompt warning function, and hydraulic device producer is facilitated to detect hydraulic device operation conditions
Monitoring, collection system failure cause realize intelligentized control method.
Above disclosed is only the preferred embodiment of the utility model, certainly cannot be practical new to limit this with this
The interest field of type, therefore equivalent variations made according to the patent scope of the utility model still belong to the utility model and are covered
Range.
Claims (10)
1. a kind of hydraulic system for lid maker, which is characterized in that including molding machine, high tension loop device, in push back road
Device, low tension loop device and fuel tank, the molding machine are equipped with hydraulic cylinder and three position four-way directional control valve, and the hydraulic cylinder is equipped with
First oil pressure chamber and the second oil pressure chamber, the three position four-way directional control valve are equipped with the first hydraulic fluid port, the second hydraulic fluid port, third hydraulic fluid port and the 4th
Hydraulic fluid port；
The high tension loop device includes high pressure pump group, high-pressure oil feed road and high pressure oil return line, the oil inlet on the high-pressure oil feed road
Mouth is connect with the high pressure pump group, and the oil in the fuel tank can be led to high-pressure oil feed road by the high pressure pump group, and the high pressure supplies
The oil outlet of oil circuit passes sequentially through first hydraulic fluid port, the 4th hydraulic fluid port is connected to the first oil pressure chamber, and the height pushes back
The oil inlet of oil circuit is connected to the second oil pressure chamber, and the oil outlet of the high pressure oil return line is connected to fuel tank, the high-pressure oil feed road
It is equipped with high-pressure oil feed control assembly, the high pressure oil return line is equipped with high pressure oil return control assembly；
Medium pressure loop apparatus include medium lift pump group, middle pressure oil passage and in push back oil circuit, the oil inlet of medium pressure oil passage
Mouth is connect with medium pressure pump group, and the oil in the fuel tank can be led to middle pressure oil passage by medium pressure pump group, and medium pressure supplies
The oil outlet of oil circuit passes sequentially through second hydraulic fluid port, the 4th hydraulic fluid port is connected to the first oil pressure chamber, and medium pressure is returned
The oil inlet of oil circuit is connected to the second oil pressure chamber, and the oil outlet of medium pressure oil return line is connected to fuel tank, medium pressure oil passage
Be equipped with middle pressure oil-feeding control component, medium pressure oil return line be equipped in push back oily control assembly；
The low tension loop device includes medium pressure pump group, low pressure oil supply road and low pressure oil return line, the low pressure oil supply road
Oil inlet is connect with medium pressure pump group, and the oil in the fuel tank can be led to low pressure oil supply road by medium pressure pump group, described low
Pressure oil passage oil outlet be connected to the second oil pressure chamber, the oil inlet of the low pressure oil return line pass sequentially through the third hydraulic fluid port,
4th hydraulic fluid port is connected to the first oil pressure chamber, and the oil outlet of the low pressure oil return line is connected to the fuel tank, described low
Oil passage is pressed to be equipped with low pressure oil supply control assembly, the low pressure oil return line is equipped with low pressure oil return control assembly.
2. being used for the hydraulic system of lid maker as described in claim 1, which is characterized in that the high-pressure oil feed control assembly root
Check valve, the first speed governing valve and first flow sensor, the list are successively arranged on the high-pressure oil feed road according to fuel feeding direction
The first accumulator, first pressure sensor, first pressure are equipped with to the high-pressure oil feed road between valve and first speed governing valve
Relay, first pressure gauge and high pressure oil return bypass, the high pressure oil return bypass is connected to the fuel tank, by the high pressure oil return
Road is equipped with the first Solenoid ball valve, and the high-pressure oil feed road of the oil inlet side of the check valve and first Solenoid ball valve go out
The first overflow valve, the oil inlet of first overflow valve and high-pressure oil feed road are connected between the high pressure oil return bypass of hydraulic fluid port side
Connection, the oil outlet of first overflow valve and high pressure oil return bypass connect；First overflow valve and first electromagnetic ball
Electricity liquid ratio relief valve, the oil inlet of the electricity liquid ratio relief valve are connected between the high pressure oil return bypass of the oil outlet side of valve
Mouth is connect with first overflow valve, and the oil outlet of the electricity liquid ratio relief valve and high pressure oil return bypass connect, described electro-hydraulic
Proportional amplifier is equipped at proportional pressure control valve；
The high pressure oil return control assembly is successively arranged third flow sensor on the high pressure oil return line according to oil return direction
With the second overflow valve, the high pressure oil return line between second overflow valve and the third flow sensor is equipped with third pressure
Table and third pressure sensor；
First speed governing valve, the first flow sensor, the first pressure sensor, the first pressure relay,
First Solenoid ball valve, the electricity liquid ratio relief valve, the third flow sensor, third pressure sensor difference
It is connect with electric control system, electric control system is connect by wireless network with controlling terminal.
3. being used for the hydraulic system of lid maker as claimed in claim 2, which is characterized in that medium pressure oil-feeding control component root
One-way throttle valve, two-way directional valve, the second speed governing valve and second are successively arranged in medium pressure oil passage according to fuel feeding direction
Quantity sensor is equipped with the second Solenoid ball valve at the two-way directional valve, and second Solenoid ball valve is for realizing two-way directional valve
Spool opening and closing, the middle pressure oil passage between the oil outlet of medium pressure pump group and the oil inlet of the one-way throttle valve is equipped with
In push back oily bypass, medium pressure oil return bypass be connected to the fuel tank, and medium pressure oil return is bypassed equipped with two-way overflow valve, institute
It states and is equipped with third Solenoid ball valve at two-way overflow valve, the third Solenoid ball valve is opened and closed for realizing the spool of two-way overflow valve,
Middle pressure oil passage between second speed governing valve and the second flow sensor is equipped with the second accumulator, second pressure passes
Sensor, second pressure relay, third pressure switch and second pressure gauge；
Medium pressure oil return control assembly is successively arranged the third flow on medium pressure oil return line according to oil return direction and passes
Sensor and second overflow valve, between second overflow valve and the third flow sensor in push back oil circuit and be equipped with
The third pressure gauge and the third pressure sensor；
The two-way directional valve, second speed governing valve, the second flow sensor, second Solenoid ball valve, described
Three Solenoid ball valves, the second pressure sensor, the second pressure relay, the third pressure switch are respectively and electrically
Control system connection.
4. being used for the hydraulic system of lid maker as claimed in claim 3, which is characterized in that the low pressure oil supply control assembly root
The one-way throttle valve, second overflow valve, the third stream are successively arranged on the low pressure oil supply road according to fuel feeding direction
Quantity sensor and third accumulator, the low pressure oil supply road between second overflow valve and the third flow sensor are equipped with
The third pressure gauge and the third pressure sensor, the oil inlet of the oil outlet of medium pressure pump group and the one-way throttle valve
Low pressure oil supply road between mouthful is equipped with low pressure oil return bypass, and the low pressure oil return bypass is connected to the fuel tank, the low pressure
Oil return bypass is equipped with the two-way overflow valve, is equipped with the third Solenoid ball valve, the third electromagnetism at the two-way overflow valve
Ball valve is opened and closed for realizing the spool of two-way overflow valve；
The low pressure oil return control assembly is successively arranged damping device and the 4th on the low pressure oil return line according to oil return direction
Flow sensor；4th flow sensor is connect with electric control system.
5. as claimed in claim 4 be used for lid maker hydraulic system, which is characterized in that the low pressure oil return line at least provided with
One group of horizontal oil return line and vertical oil return line, the vertical oil return line are set perpendicular to the horizontal oil return line, the damping device
It sets in the junction of the horizontal oil return line and the vertical oil return line, and the buffer function power direction of the damping device and institute
The oil return direction for stating horizontal oil return line is opposite.
6. being used for the hydraulic system of lid maker as claimed in claim 5, which is characterized in that the damping device is slow for spring
Rush device or plunger type accumulator.
7. being used for the hydraulic system of lid maker as described in claim 1, which is characterized in that it further include heating device, it is described to add
Thermal is arranged in the fuel tank, and is located at close to the oil pumping end at the oil pumping end and medium pressure pump group of the high pressure pump group
Side；The heating device is connect with electric control system, and electric control system is connect by wireless network with controlling terminal.
8. being used for the hydraulic system of lid maker as described in claim 1, which is characterized in that further include cooling cycle filtering dress
It sets, the cooling cycle filter device is arranged on the fuel tank, and is located remotely from the oil pumping end of the high pressure pump group and described
The side at the oil pumping end of medium lift pump group, the cooling cycle filter device are equipped with cold filtration circuit, the cold filtration circuit
Oil inlet and oil outlet be connected to the fuel tank, be successively arranged the according to the flow direction of oil on the cold filtration circuit
One oil filter, cold filtration pump group, water cooler, the second oil filter and third oil filter, first oil filter are primary mistake
Filter, second oil filter are middle rank filtering, and the third oil filter is advanced filtering, second oil filter and the third
Oil filter is equipped with obstruction alarm device, and the water cooler is connect by solenoid valve with cooling water source；The blocking alarm dress
It sets and is connect respectively with electric control system with the solenoid valve, electric control system is connect by wireless network with controlling terminal.
9. being used for the hydraulic system of lid maker as claimed in claim 8, which is characterized in that the oil outlet of the low pressure oil return line
Place is equipped with magnetic filter device, and the magnetic filter device is arranged in the fuel tank, and is located remotely from the high pressure pump group
The side at the oil pumping end for end and the medium pressure pump group of pumping, and it is mutually close with the oil inlet in the cold filtration circuit.
10. being used for the hydraulic system of lid maker as described in claim 1, which is characterized in that the fuel tank is equipped with temperature sensing
Device, liquid level sensor, air cleaner and liquidometer；The temperature sensor and the liquid level sensor respectively with electrical control
System connection, electric control system are connect by wireless network with controlling terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821753104.XU CN209129948U (en) | 2018-10-26 | 2018-10-26 | A kind of hydraulic system for lid maker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821753104.XU CN209129948U (en) | 2018-10-26 | 2018-10-26 | A kind of hydraulic system for lid maker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209129948U true CN209129948U (en) | 2019-07-19 |
Family
ID=67232982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821753104.XU Withdrawn - After Issue CN209129948U (en) | 2018-10-26 | 2018-10-26 | A kind of hydraulic system for lid maker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209129948U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210022A (en) * | 2018-10-26 | 2019-01-15 | 广州宝力特液压密封有限公司 | A kind of hydraulic system for lid maker |
-
2018
- 2018-10-26 CN CN201821753104.XU patent/CN209129948U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210022A (en) * | 2018-10-26 | 2019-01-15 | 广州宝力特液压密封有限公司 | A kind of hydraulic system for lid maker |
| CN109210022B (en) * | 2018-10-26 | 2024-03-08 | 广州宝力特液压技术有限公司 | Hydraulic system for cover making machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 510000 No. 97, Tianyuan Road, Yonghe Economic Zone, Guangzhou Economic and Technological Development Zone, Guangdong Province Patentee after: Guangzhou baolite Hydraulic Technology Co.,Ltd. Address before: No. 97 Tianyuan Road, Yonghe Development Zone, Huangpu District, Guangzhou City, Guangdong Province, 510000 Patentee before: GUANGZHOU BLT HYDRAULICS & SEALS Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190719 Effective date of abandoning: 20240308 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190719 Effective date of abandoning: 20240308 |