CN108758310B - Circulation lubrication system based on injection molding machine - Google Patents
Circulation lubrication system based on injection molding machine Download PDFInfo
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- CN108758310B CN108758310B CN201810928659.1A CN201810928659A CN108758310B CN 108758310 B CN108758310 B CN 108758310B CN 201810928659 A CN201810928659 A CN 201810928659A CN 108758310 B CN108758310 B CN 108758310B
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- lubricating
- oil
- lubrication
- die
- pull rod
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- 238000005461 lubrication Methods 0.000 title claims abstract description 196
- 238000001746 injection moulding Methods 0.000 title claims abstract description 22
- 239000003921 oil Substances 0.000 claims abstract description 183
- 230000001050 lubricating effect Effects 0.000 claims abstract description 128
- 239000010687 lubricating oil Substances 0.000 claims abstract description 109
- 238000007789 sealing Methods 0.000 claims description 38
- 238000001514 detection method Methods 0.000 claims description 20
- 230000001502 supplementing effect Effects 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 7
- 239000000284 extract Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 1
- 241000227287 Elliottia pyroliflora Species 0.000 description 9
- 239000004519 grease Substances 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 230000006872 improvement Effects 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/83—Lubricating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N25/00—Distributing equipment with or without proportioning devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/30—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the oil being fed or carried along by another fluid
- F16N7/32—Mist lubrication
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a circulating lubrication system based on an injection molding machine, which comprises a lubrication oil tank (20), an oil supply pump (9), a mold locking lubrication structure, a pull rod lubrication structure, a mold adjusting lubrication structure and a lubrication pipeline (3), wherein the oil supply pump (9) is used for extracting lubricating oil from the lubrication oil tank (20), conveying the lubricating oil to the mold locking lubrication structure, the pull rod lubrication structure and the mold adjusting lubrication structure through the lubrication pipeline (3), returning the lubricating oil to the lubrication oil tank (20) through an oil return pipe (7), filtering the returned lubricating oil in the lubrication oil tank (20), and continuously extracting the lubricating oil by the oil supply pump (9) to enter the circulating lubrication system. The injection molding machine is lubricated in a quantitative and cyclic recovery mode, related parts are transformed, and a lubricating structure is arranged in the parts, so that the use amount of lubricating oil is greatly reduced, and the cost of the lubricating oil is saved; the closed lubrication mode is adopted, so that pollution caused by lubricating oil is reduced.
Description
Technical Field
The invention relates to the technical field of injection molding machines, in particular to a circulating lubrication system based on an injection molding machine.
Background
The lubricating system adopted by the injection molding machine in the prior art generally pumps lubricating oil from a lubricating pump to each lubricating part, and then directly overflows from the lubricating part to be discharged to an oil receiving disc for disposable use.
In the prior art, the use amount of lubricating oil is large, and the lubricating oil is used as a continuous dissipation mode. Meanwhile, after the machine is stopped, the problems of backflow and overflow of lubricating oil can occur, the time for lubrication in place after restarting is long, the operation of the whole machine is affected, if the machine is started in advance after lubrication is not in place, the abrasion of the machine is increased, and the service life of the machine is reduced. For old equipment, the lubricating oil overflows more because of abrasion of the lubricating part, and the use amount of the lubricating oil is required to be increased in order to maintain the lubricating effect.
Moreover, the pollution to the machine body and the environment is large, and a large amount of lubricating oil is used without effective recovery measures, so that the pollution is caused, and sometimes the product is polluted. Lubrication at the machine winch leaks from the pin shaft to pollute the whole machine winch, so that the appearance is affected, particularly the oil leakage is combined with raw material dust, and the service life of the machine winch is affected after impurities are mixed. In recent years, the requirements of the state on environmental protection are higher and higher, and pollution caused by feeding back the existing lubrication system by many users is difficult to meet the requirements of environmental protection, so that new and stricter requirements on lubrication are also put on by the users.
In addition, the competition of the whole plastic product industry is more and more intense, the cost control of users is more and more strict, more and more users feel that the lubricating oil usage amount is an important component of the cost, and the conventional lubrication system cannot meet the requirement of the users in the cost control.
Disclosure of Invention
The invention aims to solve the technical problem of providing a circulating lubrication system based on an injection molding machine, which adopts circulating lubrication, reduces the loss of lubricating oil, reduces the pollution of the lubricating oil and improves the utilization rate of the lubricating oil.
In view of the above, the solution of the present invention is to provide a circulation lubrication system based on an injection molding machine, which includes a lubrication tank, an oil supply pump, a mold locking lubrication structure, a pull rod lubrication structure, a mold adjusting lubrication structure, and a lubrication pipeline, wherein the oil supply pump extracts lubrication oil from the lubrication tank, and transmits the lubrication oil to the mold locking lubrication structure, the pull rod lubrication structure, the mold adjusting lubrication structure through the lubrication pipeline, and returns to the lubrication tank through an oil return pipeline, and the returned lubrication oil is continuously extracted by the oil supply pump into the circulation lubrication system after being filtered in the lubrication tank;
The pull rod lubricating structure is arranged on the movable template and the pull rod, the movable template is sleeved on the pull rod, the pull rod lubricating structure comprises a first side lubricating hole, a second upper lubricating hole and a second oil guiding groove which are arranged on the movable template, the second oil guiding groove is respectively communicated with the first side lubricating hole and the second upper lubricating hole, the second oil guiding groove is positioned on the inner wall of the pull rod hole of the movable template, and sealing rings are arranged in the two ends of the pull rod hole of the movable template and used for sealing lubricating oil between the movable template and the pull rod.
As an improvement, the die adjusting lubrication structure comprises a die adjusting lubrication channel arranged between a die adjusting gear and a pull rod thread, wherein the die adjusting gear is screwed on the pull rod and is arranged on a rear die plate, a front lubrication oil storage cavity is arranged among the die adjusting gear, the rear die plate and the pull rod, a front sealing ring is arranged between the die adjusting gear and the rear die plate, the rear end of the die adjusting gear is arranged on the rear die plate through a fixing ring, a rear sealing ring is sleeved on the pull rod positioned at the rear end of the die adjusting gear, and a rear lubrication oil storage cavity is formed among the rear sealing ring, the pull rod and the die adjusting gear; the die adjusting lubrication channel comprises a second side lubrication hole, a third upper lubrication hole and a third oil guiding groove which are arranged on the die adjusting gear, the third oil guiding groove is respectively communicated with the second side lubrication hole and the third upper lubrication hole, the third oil guiding groove is communicated with a front lubrication oil storage cavity and a rear lubrication oil storage cavity, and the third oil guiding groove is positioned on the inner wall of a pull rod hole of the die adjusting gear.
The die-adjusting lubricating structure further comprises a pressure detection switch, the pressure detection switch is communicated with the front lubricating oil storage cavity or/and the rear lubricating oil storage cavity, the lubricating pipeline comprises a die-adjusting oil supplementing pipeline, when the pressure detection switch detects that the hydraulic pressure is too low, the die-adjusting oil supplementing pipeline is used for supplementing lubricating oil to the front lubricating oil storage cavity or/and the rear lubricating oil storage cavity, a controllable one-way valve and a resistant lubricating distributor are arranged in the die-adjusting oil supplementing pipeline, the supplemented lubricating oil firstly overcomes the initial pressure of the resistant lubricating distributor, enters the front lubricating oil storage cavity or/and the rear lubricating oil storage cavity through the controllable one-way valve, is automatically closed after the hydraulic pressure born by the controllable one-way valve reaches a preset pressure for a certain time, and is re-opened after the pressure is reduced, so that local lubricating flow control is realized.
As an improvement, the die-adjusting lubrication structure further comprises a lubrication sprayer, the lubrication sprayer is connected into the lubrication pipeline to obtain lubricating oil, the lubrication sprayer is arranged on the rear side face of the rear die plate, the die-adjusting gear is meshed with the large gear and driven by the large gear, and the lubrication sprayer is located above the large gear.
As an improvement, the lubricating oil tank comprises a first chamber and a second chamber, the oil return pipeline discharges the circulated lubricating oil to the bottom of the first chamber, a partition plate is arranged between the first chamber and the second chamber, holes are formed in the partition plate, the lubricating oil in the first chamber enters the second chamber through the holes, an oil suction port of the oil outlet pipe is arranged in the second chamber, and a filter is arranged at the oil outlet.
As an improvement, the oil supply pump is connected with the lubricating pump through an oil outlet pipe, a lubricating flow distributor is arranged on the oil outlet pipe between the oil supply pump and the lubricating pump, and a quantitative distributor is arranged on a channel of a lubricating pipeline, which leads to the mode locking lubricating structure, the pull rod lubricating structure and the mode adjusting lubricating structure, so that quantitative lubrication of each lubricating structure is realized.
As an improvement, the die adjusting and lubricating structure is arranged right below and connected to the lower part of the rear template, and a die adjusting and oil receiving disc is arranged and used for recycling lubricating oil sprayed out of the lubricating sprayer and reflowing to the lubricating oil tank through an oil return pipe.
As an improvement, the circulating lubrication system further comprises a first open lubrication system and a second open lubrication system, wherein the first open lubrication system lubricates a sliding block between the movable template and the frame, and is provided with a first oil receiving disc, and the second open lubrication system lubricates the sliding block between the injection table and the frame, and is provided with a second oil receiving disc; and lubricating oil recovered from the first oil receiving disc and the second oil receiving disc flows back to the lubricating oil tank through oil return pipes.
Compared with the prior art, the invention has the following advantages: the injection molding machine is lubricated in a quantitative and cyclic recovery mode, related parts are transformed, and a lubricating structure is arranged in the parts, so that the use amount of lubricating oil is greatly reduced, and the cost of the lubricating oil is saved; the closed lubrication mode is adopted, so that pollution caused by lubricating oil is reduced.
Drawings
FIG. 1 is a schematic diagram of a circulation lubrication system based on an injection molding machine;
FIG. 2 is a schematic diagram of a lubricating oil circulation path;
FIG. 3 is a schematic diagram of a mold-locking lubrication structure;
FIG. 3-1 is a schematic cross-sectional view of FIG. 3;
FIG. 4 is a schematic illustration of a tie rod lubrication configuration;
FIG. 4-1 is a schematic cross-sectional view of FIG. 4;
FIG. 5 is a schematic diagram of a die-adjusting lubrication structure;
FIG. 5-1 is a schematic cross-sectional view of the structure of FIG. 5;
FIG. 5-2 is a schematic view of another cross-sectional structure of FIG. 5;
FIG. 6 is a schematic illustration of a lubrication reservoir;
FIG. 6-1 is a schematic cross-sectional view of FIG. 6;
fig. 7 is a schematic view of a part of the structure of the die-adjusting lubrication structure.
The figure shows: 1. the device comprises a lubricating pump, 2, a quantitative distributor, 3, a lubricating pipeline, 4, an oil receiving disc, 5, a lubricating sprayer, 6, a die-adjusting and oil-supplementing pipeline, 7, an oil return pipe, 8, a filter, 9, an oil supply pump, 10, an oil outlet pipe, 11, a lubricating flow distributor, 12, a die-adjusting lubricating structure, 13, a spray lubricator, 14, die-closing lubricating, 15, a pull rod lubricating, 16, a first sliding block lubricating structure, 17, a lubricating flow detection module, 18, a second sliding block lubricating structure, 19, a grease detection structure, 20, a lubricating oil tank, 21, a large gear, 22 and a die-adjusting oil receiving disc. A. Front template, B, movable template, C, pull rod, D, back template.
Detailed Description
The present invention will be further described with reference to specific examples, but the present invention is not limited to these examples.
The invention is intended to cover any alternatives, modifications, equivalents, and variations that fall within the spirit and scope of the invention. In the following description of preferred embodiments of the invention, specific details are set forth in order to provide a thorough understanding of the invention, and the invention will be fully understood to those skilled in the art without such details. Furthermore, the drawings of the present invention are not necessarily to scale, nor are they necessarily drawn to scale.
As shown in fig. 1, a specific structure of the circulation lubrication system based on the injection molding machine of the present invention is illustrated. The circulating lubrication system based on the injection molding machine is based on the injection molding machine, the injection molding machine comprises a frame, a front template A, a movable template B, a pull rod C, a rear template D and a shooting table, wherein the front template A is arranged at one end of the pull rod C, the movable template B is sleeved in the middle of the pull rod C, and the rear template D is arranged at the other end of the pull rod and is used for moving to open and close the mold by driving the movable template B.
The circulating lubrication system based on the injection molding machine comprises a lubrication oil tank 20, an oil supply pump 9, a mode locking lubrication structure, a pull rod lubrication structure, a mode adjusting lubrication structure and a lubrication pipeline 3, wherein the oil supply pump 9 extracts lubricating oil from the lubrication oil tank 20, conveys the lubricating oil to the mode locking lubrication structure, the pull rod lubrication structure and the mode adjusting lubrication structure through the lubrication pipeline 3, returns to the lubrication oil tank 20 through an oil return pipeline, and the refluxed lubricating oil is continuously extracted into the circulating lubrication system by the oil supply pump 9 after being filtered in the lubrication oil tank 20.
The above is the basic solution of the present invention, and the circulation lubrication system based on an injection molding machine of the present invention further includes a lubrication pump 1, a quantitative distributor 2, a lubrication pipeline 3, an oil receiving disc 4, a lubrication sprayer 5, a mold adjusting and oil supplementing pipeline 6, an oil return pipe 7, a filter 8, an oil supply pump 9, an oil outlet pipe 10, a lubrication flow distributor 11, a mold adjusting lubrication structure 12, a spray lubricator 13, a mold closing lubrication structure 14, a pull rod lubrication structure 15, a first slide block lubrication structure 16, a lubrication flow detection module 17, a second slide block lubrication structure 18, and a grease detection structure 19.
The lubricating pump 1 is fixed on a sheet metal part, the sheet metal part is fixed on a rear template D or a die adjusting mechanism, power is provided for an oil outlet pipe 10, power is provided for an oil supply pump 9, and lubricating oil stored in a filter 8 is pumped out to a certain height; the lubrication proportion distributor 11 is installed between the lubrication pump 1 and the oil feed pump 9, and adjusts the magnitude of the lubrication flow by the received signal of the lubrication flow detection module 17, thereby controlling the lubrication flow of the whole system. The die adjusting lubricating structure 12 is positioned at the rear die plate, the die adjusting oil supplementing pipeline 6 penetrates through the rear die plate and is connected with the die adjusting lubricating structure 12, the spray lubricator 13 is arranged on the rear die plate and is used for lubricating a large gear, and the lubricating device is matched with the oil receiving disc 4 below, so that the machine body and the machine winch can be prevented from being polluted on the basis of effective lubrication. And a grease nipple 5-13 is further arranged on the rear template D, the grease nipple 5-13 is connected with the quantitative distributor 2 through a lubricating pipeline 3, and the grease nipple 5-13 is also communicated with a die-adjusting and oil-supplementing pipeline 6. The die closing lubricating structure 14 is arranged between the connecting rod piece and the pin shaft, and real-time lubrication updating is realized through circulating lubrication; the pull rod lubricating structure 15 is used for lubrication between the movable template and the pull rod, the lubrication flow detection module 17 is located at the far end of a lubrication point and is used for detecting the lubrication flow in real time to control the whole flow, the front end of the flow detection module 17 is provided with a resistance type lubrication distributor and a stop valve capable of automatically controlling the opening size, and the resistance type lubrication distributor can be pre-regulated in advance according to the pressure required by each lubrication point, namely an initial oil pressure is set to prevent the whole system from being lubricated in place due to local lubrication oil leakage. The lubrication flow detection module 17 detects the pressure flow of the lubricating oil, feeds back the pressure flow to the control system in real time, and controls the check valve to close or close the opening after the pressure reaches a set value for a period of time so as to limit the local lubricating oil flow, so that the whole system is lubricated more fully. The waste of continuous output of the lubrication system caused by the fact that the pressure is not reached due to local lubrication leakage is effectively avoided, and the waste of continuously pumping lubricating oil into the part with sufficient lubrication is effectively reduced. When the lubrication flow detection module 17 detects that the lubrication pressure is insufficient after the lubrication flow detection module is operated for a period of time, the control system opens the one-way valve again, and oil is replenished again and repeatedly. The pressure required for the lubrication point is automatically adjusted. The whole system is integrally controlled by the controller.
As shown in fig. 2, the lubricating oil circulation path of the circulation lubrication system based on the injection molding machine of the present invention is illustrated. The lubricating oil is pumped by the oil supply pump after being filtered from the lubricating oil tank, the oil supply pump pumps the lubricating oil into the lubricating pump, the lubricating pump conveys the lubricating oil to each lubricating part through the quantitative distributor, and the lubricating oil enters the lubricating oil tank through the oil return pipe.
As shown in fig. 3 and 3-1, a mode locking lubrication structure is illustrated. The mold locking lubricating structure is arranged on a hinge pair of the mold locking mechanism, namely a mold clamping mechanism, the hinge pair comprises a hinge 3-1 and a rotating shaft 3-3, the hinge 3-1 and the rotating shaft 3-3 rotate mutually when the mold is opened and closed, the mold locking lubricating structure comprises a lower lubricating hole 3-5, a first upper lubricating hole 3-6 and a first oil guide groove 3-7 which are arranged on the hinge 3-1, the first oil guide groove 3-7 is respectively communicated with the lower lubricating hole 3-5 and the first upper lubricating hole 3-6, the first oil guide groove 3-7 is positioned on the inner wall of a shaft hole of the hinge 3-1, and sealing rings 3-4 are arranged in two ends of the shaft hole of the hinge 3-1 and used for sealing lubricating oil between the hinge 3-1 and the rotating shaft 3-3. The copper bush 3-2 is arranged in the shaft hole of the hinge 3-1, the copper bush 3-2 is arranged on the hinge 3-1, interference fit is adopted between the copper bush 3-2 and the hinge 3-1, the copper bush 3-2 is prevented from falling off from the hinge 3-1, sealing grooves are arranged on the inner sides of two ends of the copper bush 3-2, a rotating shaft is inserted into the copper bush 3-2 after the sealing rings 3-4 are arranged, clearance fit is realized between the copper bush 3-2 and the rotating shaft 3-3, the copper bush can be easily rotated, and sealing can be realized through the sealing rings at two ends. The lubricating oil enters from the lower lubricating hole 3-5 and goes out from the first upper lubricating hole 3-6 through the first oil guiding groove 3-7, and the first oil guiding groove 3-7 is always filled with the lubricating oil under the action of gravity, so that the rotating shaft and the copper bush can be fully lubricated during rotation.
As shown in fig. 4 and 4-1, the lubrication structure of the tie rod is illustrated. The pull rod lubricating structure is arranged on the movable template B and the pull rod C, the movable template B is sleeved on the pull rod C, the pull rod lubricating structure comprises a first side lubricating hole 4-5, a second upper lubricating hole 4-6 and a second oil guiding groove 4-7 which are arranged on the movable template B, the second oil guiding groove 4-7 is respectively communicated with the first side lubricating hole 4-5 and the second upper lubricating hole 4-6, the second oil guiding groove 4-7 is positioned on the inner wall of the pull rod hole of the movable template B, and sealing rings 4-4 are arranged in two ends of the pull rod hole of the movable template B and used for sealing lubricating oil between the movable template B and the pull rod C. The copper sleeve 4-2 is arranged in the pull rod hole of the movable template B, interference fit is adopted between the copper sleeve 4-2 and the movable template B, the copper sleeve 4-2 is prevented from falling off from the movable template B, sealing grooves 4-4 are arranged on the inner sides of two ends of the copper sleeve 4-2, a pull rod C is inserted into the copper sleeve 4-2 after a sealing ring 4-4 is arranged, clearance fit is adopted between the copper sleeve 4-2 and the pull rod C, the copper sleeve can slide easily, and sealing can be performed through the sealing rings at two ends. The lubricating oil enters from the first side lubricating hole 4-5 and goes out from the second upper lubricating hole 4-6 through the second oil guiding groove 4-7, and the second oil guiding groove 4-7 is always filled with the lubricating oil under the action of gravity, so that the sliding between the pull rod C and the copper sleeve 4-2 can be fully lubricated.
As shown in fig. 5, 5-1 and 5-2, the die-adjusting lubrication structure is illustrated. The die adjusting lubrication structure comprises a die adjusting lubrication channel arranged between a die adjusting gear 5-5 and a pull rod thread, wherein the die adjusting gear 5-5 is screwed on a pull rod C and is arranged on a rear die plate D, a front lubrication oil storage cavity is arranged among the die adjusting gear 5-5, the rear die plate D and the pull rod C, a front sealing ring 5-6 is arranged between the die adjusting gear 5-5 and the rear die plate D, the rear end of the die adjusting gear 5-5 is arranged on the rear die plate D through a fixing ring 5-3, a rear sealing ring 5-2 is sleeved on the pull rod C positioned at the rear end of the die adjusting gear 5-5, and a rear lubrication oil storage cavity is formed among the rear sealing ring 5-2, the pull rod C and the die adjusting gear 5-5; the die adjusting lubrication channel comprises a second side lubrication hole 5-7, a third upper lubrication hole 5-10 and a third oil guiding groove 5-11 which are arranged on the die adjusting gear 5-5, the third oil guiding groove 5-11 is respectively communicated with the second side lubrication hole 5-7 and the third upper lubrication hole 5-10, the third oil guiding groove 5-11 is communicated with a front lubrication oil storage cavity and a rear lubrication oil storage cavity, and the third oil guiding groove 5-11 is positioned on the inner wall of a pull rod hole of the die adjusting gear 5-5.
The front sealing ring 5-6 is fixed on the rear template D by adopting bolts, the die adjusting gear 5-5 is screwed into the pull rod through threads until the front sealing ring 5-6 is touched, the lining ring 5-4 is sleeved on the die adjusting gear 5-5, the fixed ring 5-3 is fixed on the rear template D through a support column and bolts, the sealing ring on the lining ring 5-4 can be pressed, the rotation of the die adjusting gear 5-5 is not influenced, the rear sealing ring 5-2 is fixed on the die adjusting gear 5-5 through bolts, three sealing grooves are formed on the rear sealing ring 5-2 and are respectively rubber seals, mechanical seals and adhesive Mao Mifeng are used for effectively preventing lubricating oil from flowing out from the tail end of the pull rod, the fixed ring, the lining ring and the die adjusting gear are respectively provided with sealing rings before the front sealing ring, so that the whole die adjusting lubrication system forms a front sealing oil storage cavity and a rear sealing oil storage cavity, four oil guide grooves are formed in the middle of the die adjusting gear, the two lubricating oil cavities are communicated, the die adjusting gear and the pull rod can be fully lubricated during die adjusting, the lubricating oil enters from a side lubricating hole, the upper lubricating hole is used for discharging lubricating oil, and the two storage cavities are always full.
The die-adjusting lubricating structure further comprises a pressure detection switch 5-8, the pressure detection switch 5-8 is communicated with the front lubricating oil storage cavity or/and the rear lubricating oil storage cavity, the lubricating pipeline comprises a die-adjusting oil supplementing pipeline 6, and when the pressure detection switch 5-8 detects that the hydraulic pressure is too low, lubricating oil is supplemented to the front lubricating oil storage cavity or/and the rear lubricating oil storage cavity through the die-adjusting oil supplementing pipeline 6. The die-adjusting oil-supplementing pipeline 6 is internally provided with a controllable one-way valve and a resistant lubrication distributor, the replenished lubricating oil overcomes the initial pressure of the resistant lubrication distributor firstly, and enters the front lubrication oil storage cavity or/and the rear lubrication oil storage cavity through the controllable one-way valve, the hydraulic pressure born by the controllable one-way valve is automatically closed after reaching the preset pressure for a certain time, and the valve is opened again after the pressure is reduced, so that the local lubrication flow control is realized.
As shown in fig. 6 and 6-1, a specific structure of the lubricating oil tank is illustrated. The lubricating oil tank comprises a first chamber Q1 and a second chamber Q2, the oil return pipeline discharges circulated lubricating oil to the bottom of the first chamber Q1, a partition plate is arranged between the first chamber Q1 and the second chamber Q2, holes are formed in the partition plate, lubricating oil in the first chamber enters the second chamber through the holes, an oil suction port of the oil outlet pipe is arranged in the second chamber, and a filter is arranged at the oil outlet. The lubricating oil is directly discharged to the bottom of the first chamber Q1 through the oil inlet pipe, impurities of the lubricating oil are precipitated in the first chamber Q1, the lubricating oil enters the second chamber Q2 through holes in the partition plate 6-7, the holes are 20mm away from the bottom of the oil tank, the impurities precipitated in the first chamber Q1 can be effectively prevented from entering the second chamber Q2, an oil suction port of the oil outlet pipe 10 is 40mm away from the bottom of the oil tank, a filter 8 is additionally arranged, the impurities precipitated at the bottom of the oil tank are prevented from being sucked up, and an alarm position of the liquid level alarm 6-4 is 50mm away from the bottom of the oil tank, so that empty suction of an oil supply pump can be effectively prevented. The top of the oil tank is provided with a breathing port 6-5 which can balance the internal and external pressure of the oil tank and protect the oil supply pump at the back. The upper part of the lubricating oil tank 20 is provided with a tank cover 6-3 and a breathing port 6-5, the first chamber Q1 is connected with an oil return pipe 7, and the end part of the oil outlet pipe 10 is connected with a filter 8.
As shown in fig. 1 and 7, a part of the structure of the die-adjusting lubrication structure is illustrated. The die adjusting lubricating structure further comprises a lubricating sprayer 13, the lubricating sprayer 13 is connected into the lubricating pipeline to obtain lubricating oil, the lubricating sprayer 13 is arranged on the rear side face of the rear die plate, the die adjusting gear 5-5 is meshed with the large gear 21 and driven by the large gear 21, and the lubricating sprayer 13 is located above the large gear 21.
The oil supply pump 9 is connected with the lubricating pump 1 through an oil outlet pipe 10, a lubricating flow distributor 11 is arranged on the oil outlet pipe 10 between the oil supply pump 9 and the lubricating pump 1, and a quantitative distributor 2 is arranged on a channel of the lubricating pipeline 3, which leads to a mode locking lubricating structure, a pull rod lubricating structure and a mode adjusting lubricating structure, so that quantitative lubrication of each lubricating structure is realized.
The die adjusting oil receiving disc 22 is arranged right below the die adjusting lubricating structure and connected to the lower portion of the rear die plate, and the die adjusting oil receiving disc 22 recovers lubricating oil sprayed out of the lubricating sprayer 13 and returns to the lubricating oil tank through an oil return pipe.
The circulating lubrication system further comprises a first open lubrication system and a second open lubrication system, wherein the first open lubrication system lubricates a sliding block between the movable template and the frame (realized by a second sliding block lubrication structure 18) and is provided with a first oil receiving disc, and the second open lubrication system lubricates a sliding block between the shooting table and the frame (realized by a first sliding block lubrication structure 16) and is provided with a second oil receiving disc; the lubricating oil recovered from the first oil receiving disc and the second oil receiving disc is returned to the lubricating oil tank 20 through the oil return pipe 7.
The lubrication flow of the invention is as follows:
the whole system is supplied with oil by an automatic lubrication pump, and is divided into four lubrication systems for lubricating all parts of the machine body after passing through a lubrication distributor, wherein one of the lubrication systems is a sealed circulation lubrication system, and the other is two open circulation lubrication systems and one spray lubrication system.
The sealing circulation lubrication system is responsible for adjusting the mold, closing the mold, lubricating three parts of the pull rod, sealing the parts to be lubricated, connecting all lubrication points in series by a lubrication pipeline and a lubrication oil nozzle, flowing through each lubrication point of the mold closing, flowing to four lubrication points of the pull rod, flowing to four lubrication points of the mold adjusting, enabling the lubrication oil to flow through the whole sealing circulation system, enabling each part to be fully lubricated, and finally enabling the oil flow to be recovered through an oil return pipe, and detecting grease to be arranged at the tail end of the system so as to ensure effective flow of the lubrication oil of the whole system.
The two open circulation lubrication systems are respectively responsible for the lubrication of the mould moving slide block and the whole movement slide block, and the lubricating oil is recovered through an oil receiving disc and flows into an oil return collection box through an oil return pipe.
The spray lubrication system lubricates the large gear and the die adjusting gear, recovers the large gear and the die adjusting gear through a die adjusting oil receiving disc arranged below, and finally flows into an oil return collecting box through an oil return pipe.
Five signal or control point references are shown in 1, 1. Oil collection tank low oil level alarm signal: monitoring the oil level collected by the oil and protecting the oil feed pump; 2. control signal of the feed pump: controlling the start and stop of the oil feed pump; 3. automatic lubrication pump control and high-low oil level alarm: controlling the start and stop of the lubricating pump and monitoring the high-low oil level of the lubricating pump; 4. the tail end grease detection alarm signal is used for monitoring whether grease passes through the pipeline or not, and sending an alarm signal if the grease does not pass through the pipeline; 5. spray lubrication control, namely controlling the spraying time and interval.
Although the embodiments have been described and illustrated separately above, for example, in two sets of inventions of methods and systems, the technology relating to partial commonality, it will be apparent to those of ordinary skill in the art that alternatives and integration may be made between the embodiments, reference being made to another embodiment which is not explicitly described in relation to one of the embodiments.
The foregoing is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. In general, all changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (4)
1. The utility model provides a circulation lubricating system based on injection molding machine which characterized in that: the device comprises a lubricating oil tank (20), an oil supply pump (9), a mold locking lubricating structure, a pull rod lubricating structure, a mold adjusting lubricating structure and a lubricating pipeline (3), wherein the oil supply pump (9) extracts lubricating oil from the lubricating oil tank (20), conveys the lubricating oil to the mold locking lubricating structure, the pull rod lubricating structure and the mold adjusting lubricating structure through the lubricating pipeline (3), returns to the lubricating oil tank (20) through an oil return pipe (7), and the lubricating oil after the backflow is filtered in the lubricating oil tank (20) and then is continuously extracted by the oil supply pump (9) to enter a circulating lubricating system;
The pull rod lubricating structure is arranged on the movable template (B) and the pull rod (C), the movable template (B) is sleeved on the pull rod (C), the pull rod lubricating structure comprises a first side lubricating hole (4-5), a second upper lubricating hole (4-6) and a second oil guide groove (4-7) which are arranged on the movable template (B), the second oil guide groove (4-7) is respectively communicated with the first side lubricating hole (4-5) and the second upper lubricating hole (4-6), the second oil guide groove (4-7) is positioned on the inner wall of the pull rod hole of the movable template (B), and sealing rings (4-4) are arranged in the two ends of the pull rod hole of the movable template (B) and are used for sealing lubricating oil between the movable template (B) and the pull rod (C);
The die adjusting lubrication structure comprises a die adjusting lubrication channel arranged between a die adjusting gear (5-5) and a pull rod thread, the die adjusting gear (5-5) is screwed on the pull rod (C) and arranged on a rear die plate (D), a front lubrication oil storage cavity is arranged among the die adjusting gear (5-5), the rear die plate (D) and the pull rod (C), a front sealing ring (5-6) is arranged among the die adjusting gear (5-5) and the rear die plate (D), the rear end of the die adjusting gear (5-5) is arranged on the rear die plate (D) through a fixing ring (5-3), a rear sealing ring (5-2) is sleeved on the pull rod (C) positioned at the rear end of the die adjusting gear (5-5), and a rear lubrication oil storage cavity is formed among the rear sealing ring (5-2), the pull rod (C) and the die adjusting gear (5-5); the die adjusting lubrication channel comprises a second side lubrication hole (5-7), a third upper lubrication hole (5-10) and a third oil guide groove (5-11) which are arranged on the die adjusting gear (5-5), the third oil guide groove (5-11) is respectively communicated with the second side lubrication hole (5-7) and the third upper lubrication hole (5-10), the third oil guide groove (5-11) is communicated with a front lubrication oil storage cavity and a rear lubrication oil storage cavity, and the third oil guide groove (5-11) is positioned on the inner wall of a pull rod hole of the die adjusting gear (5-5);
The die-adjusting lubricating structure further comprises a pressure detection switch (5-8), the pressure detection switch (5-8) is communicated with the front lubricating oil storage cavity or/and the rear lubricating oil storage cavity, the lubricating pipeline comprises a die-adjusting oil supplementing pipeline (6), when the pressure detection switch (5-8) detects that the hydraulic pressure is too low, the die-adjusting oil supplementing pipeline (6) is used for supplementing lubricating oil to the front lubricating oil storage cavity or/and the rear lubricating oil storage cavity, a controllable one-way valve and a resistant lubricating distributor are arranged in the die-adjusting oil supplementing pipeline (6), the supplemented lubricating oil firstly overcomes the initial pressure of the resistant lubricating distributor, enters the front lubricating oil storage cavity or/and the rear lubricating oil storage cavity through the controllable one-way valve, is automatically closed after the hydraulic pressure born by the controllable one-way valve reaches a preset pressure for a certain time, and is re-opened after the pressure is reduced, so that the local lubricating flow control is realized;
the die adjusting lubricating structure further comprises a lubricating sprayer (13), wherein the lubricating sprayer (13) is connected into the lubricating pipeline to obtain lubricating oil, the lubricating sprayer (13) is arranged on the rear side face of the rear die plate, the die adjusting gear (5-5) is meshed with the large gear (21) and driven by the large gear (21), and the lubricating sprayer (13) is positioned above the large gear (21);
the oil supply pump (9) is connected with the lubricating pump (1) through an oil outlet pipe (10), a lubricating flow distributor (11) is arranged on the oil outlet pipe (10) between the oil supply pump (9) and the lubricating pump (1), and a quantitative distributor (2) is arranged on a channel of the lubricating pipeline (3) to the die locking lubricating structure, the pull rod lubricating structure and the die adjusting lubricating structure, so that quantitative lubrication of each lubricating structure is realized.
2. The injection molding machine-based circulation lubrication system of claim 1, wherein: the lubricating oil tank (20) comprises a first cavity (Q1) and a second cavity (Q2), the oil return pipe (7) discharges circulated lubricating oil to the bottom of the first cavity (Q1), a partition plate is arranged between the first cavity (Q1) and the second cavity (Q2), holes are formed in the partition plate, lubricating oil in the first cavity enters the second cavity through the holes, an oil suction port of the oil outlet pipe is arranged in the second cavity, and a filter (8) is arranged at the oil outlet.
3. The injection molding machine-based circulation lubrication system of claim 1, wherein: the die adjusting and lubricating structure is characterized in that a die adjusting oil receiving disc (22) is arranged right below the die adjusting and lubricating structure and connected to the lower portion of the rear die plate, and lubricating oil sprayed out of the lubricating sprayer (13) is recovered by the die adjusting oil receiving disc (22) and flows back to the lubricating oil tank through an oil return pipe.
4. The injection molding machine-based circulation lubrication system of claim 3, wherein: the circulating lubrication system further comprises a first open lubrication system and a second open lubrication system, wherein the first open lubrication system lubricates a sliding block between the movable template and the frame and is provided with a first oil receiving disc, and the second open lubrication system lubricates a sliding block between the shooting table and the frame and is provided with a second oil receiving disc; the lubricating oil recovered from the first oil receiving disc and the second oil receiving disc flows back to the lubricating oil tank (20) through the oil return pipe (7).
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| CN201810928659.1A CN108758310B (en) | 2018-08-15 | 2018-08-15 | Circulation lubrication system based on injection molding machine |
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| CN201810928659.1A CN108758310B (en) | 2018-08-15 | 2018-08-15 | Circulation lubrication system based on injection molding machine |
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| CN108758310B true CN108758310B (en) | 2024-05-14 |
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| CN108870050B (en) * | 2018-08-15 | 2024-06-04 | 浙江泰瑞重型机械有限公司 | Circulation lubrication system for injection molding machine |
| CN112810093A (en) * | 2021-02-18 | 2021-05-18 | 泰瑞机器股份有限公司 | Toggle rod type injection molding machine mould clamping mechanism |
| CN115416247B (en) * | 2022-09-01 | 2023-05-30 | 山东优士达智能设备有限公司 | Injection molding machine with die-adjusting centralized lubrication structure |
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| CN210165166U (en) * | 2018-08-15 | 2020-03-20 | 浙江泰瑞重型机械有限公司 | Circulating lubrication system based on injection molding machine |
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| JPS60166524U (en) * | 1984-04-13 | 1985-11-05 | 株式会社日本製鋼所 | Injection molding machine lubrication system |
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