CN115349346B - Multifunctional grass mowing head convenient to replace and production equipment thereof - Google Patents
Multifunctional grass mowing head convenient to replace and production equipment thereof Download PDFInfo
- Publication number
- CN115349346B CN115349346B CN202211086890.3A CN202211086890A CN115349346B CN 115349346 B CN115349346 B CN 115349346B CN 202211086890 A CN202211086890 A CN 202211086890A CN 115349346 B CN115349346 B CN 115349346B
- Authority
- CN
- China
- Prior art keywords
- die
- liquid
- channel
- grass
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/416—Flexible line cutters
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/73—Cutting apparatus
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/76—Driving mechanisms for the cutters
- A01D34/78—Driving mechanisms for the cutters electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2007—Methods or apparatus for cleaning or lubricating moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a multifunctional grass cutting head convenient to replace and production equipment thereof, which comprises a motor, a gearbox and a grass cutting device, wherein the motor is arranged on the gearbox and is connected with an input shaft of the gearbox, the grass cutting device is connected to an output shaft of the gearbox, the grass cutting device comprises a rotary disk, the rotary disk is arranged on the output shaft, and mounting holes are formed in the circumferential direction of the rotary disk and used for mounting grass cutting pieces. The invention provides a multifunctional grass cutting head convenient to replace and production equipment thereof, which can automatically collect cooling liquid at the hottest section in the production process of a grass cutting head die-casting product, and back-wash the cooling liquid into a die in the process of opening the die to preserve heat of the die, so that the process of heating the die is avoided, meanwhile, the die-casting head can automatically spray a stripping liquid with smaller temperature difference with the die, the structure is simple, and the investment of a high-cost manipulator is avoided.
Description
Technical Field
The invention relates to the technical field of grass cutting head production, in particular to a multifunctional grass cutting head convenient to replace and production equipment thereof.
Background
The grass cutting head is a core device of the grass cutting machine for mowing, a power system, a speed reducing device and grass cutting blades are generally integrated, a plurality of shells in the power system and the speed reducing device are produced through die casting, but in the die casting process, when a die casting mould is subjected to die casting after die casting discharging is finished for the next time, a mold is often required to be sprayed with a release agent, and the mold is heated at the same time, so that injected molten metal can flow to a cutting pipe corner of a mold cavity, and the heating process in use nowadays is often finished through electric heating.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a multifunctional grass mowing head convenient to replace and production equipment thereof.
In order to solve the technical problems, the invention is solved by the following technical scheme: the utility model provides a multi-functional grass-mowing head convenient to change, includes motor, gearbox and grass-mowing device, the motor sets up on the gearbox, and is connected with the input shaft of gearbox, and grass-mowing device connects on the output shaft of gearbox, grass-mowing device includes the rotary disk, and the rotary disk sets up on the output shaft, and the mounting hole has been seted up to the rotary disk circumference, and the mounting hole is used for installing the piece of mowing.
In the above scheme, preferably, the grass mowing piece can be a rope, a straight rod, a chain and a blade.
The production equipment for producing the grass cutting head comprises a die casting machine, wherein the die casting machine comprises a liquid flow channel, a fixed plate and a sliding plate, a die, a preheating device and a heat dissipation device are arranged on the die casting machine, the die comprises a left die and a right die, the left die is arranged on the fixed plate, the right die is arranged on the sliding plate, when the left die and the right die are combined, die casting liquid enters the die through the liquid flow channel so as to be die-cast, a heat dissipation water channel is arranged in the die, the heat dissipation water channel comprises a liquid outlet end and a liquid inlet end, the preheating device comprises a piston box, a piston rod and a floating block, a piston rod piston is arranged in the piston box, the piston box and the piston rod are respectively connected on the left die and the right die, the right die slides back and forth to drive the piston rod to perform piston motion, the piston box is provided with a liquid inlet, a first liquid outlet, a second liquid outlet, a first channel, a sliding cavity and a liquid storage cavity, wherein the liquid inlet is communicated with the liquid outlet, the first liquid outlet is communicated with the liquid inlet, the first channel is communicated with the sliding cavity and the liquid storage cavity, the floating block is arranged in the sliding cavity in a guiding sliding manner, the second channel is arranged in the floating block, when the floating block is at the lower end, the second channel is communicated with the first channel, the liquid inlet is communicated with the liquid storage cavity, when the floating block is at the upper end, the second channel is communicated with the second liquid outlet, the first channel is blocked by the floating block, the floating block is made of solid buoyancy material, when the left die and the right die are combined, the liquid storage cavity is the largest, no liquid exists in the space, after injection of die casting liquid, the heat dissipation device is started, so that metal liquid is solidified, and the heat dissipation liquid in the die is firstly enters the liquid storage cavity.
The die casting device has the advantages that after die casting is finished, the cooling liquid at the hottest section can be automatically collected, and the cooling liquid is backflushed into the die in the process of opening the die, so that the die is kept warm, the process of heating the die is omitted, and after the die is combined, the cooling liquid can be automatically in a state of collecting the high-temperature cooling liquid and can be operated in a uniform and circulating mode.
In the above scheme, preferably, the heat abstractor includes coolant bath, drain pipe, driving pump and feed liquor pipe, and drain pipe one end is connected on the second liquid outlet, and the other end is connected on the coolant bath, and the driving pump sets up on the coolant bath, and is connected with the feed liquor end through the feed liquor pipe for carry out the coolant circulation for the mould, all be provided with the heat dissipation water course on left side mould and the right mould, and all be provided with preheating device.
In the above scheme, preferably, the die casting machine is further provided with a demolding liquid spraying device, which comprises a spraying pipe, a sliding block, a sliding frame, a thread sleeve and a demolding liquid barrel, wherein threads are arranged on the outer ring of the spraying pipe, the upper end of the spraying pipe is connected with the demolding liquid barrel through a hose, a spraying ball is arranged at the lower end of the spraying pipe and used for spraying demolding liquid, the sliding frame is arranged on a left die, a first long groove is formed in the sliding frame, the sliding block is elastically guided to slide and arranged on the first long groove, a winding shaft is arranged on the sliding block, one end of a pull rope is arranged at the rear end of the first long groove, the other end of the pull rope is wound around the winding shaft and is arranged on a right die, the thread sleeve is rotationally arranged on the sliding block, the spraying pipe is in the thread sleeve, a first gear is arranged on the thread sleeve, and the right die is provided with a rack and is meshed and connected with the first gear.
The mold has the advantages that when the mold is opened, the mold can automatically enter the mold cavity to spray the mold cavity with the demolding liquid, and when the mold is combined, the spraying is automatically stopped.
In the above aspect, preferably, the spray pipe is provided with a guide rod, and the guide rod is slidably arranged on the sliding block in a guiding manner.
In the above scheme, preferably, the injection pipe is provided with an injection channel, the vertical and injection channels are provided with a switch cavity, a switch plate is slidably arranged in the injection channel, a through hole is formed in the switch plate, and the left and right sliding of the switch plate can control the smoothness and blocking of the injection channel.
In the above scheme, preferably, the guide bar bottom is provided with the pulling bar in a sliding manner, the pulling bar bottom is provided with the stopper, when the jet pipe moves upwards, the guide bar can be pressed and contacted on the bottom surface of the sliding block, the rear end of the switch board is provided with the first elastic piece, and meanwhile, one end of the second stay cord is also connected, and the other end of the second stay cord is connected on the pulling bar.
In the above scheme, preferably, one section of the liquid outlet pipe is located in the demolding liquid barrel, and the section of the liquid outlet pipe is made of heat-conducting metal.
The method has the beneficial effects that the temperature difference between the sprayed release liquid and the die is smaller, so that the influence on the die temperature is reduced.
In the above scheme, preferably, the liquid outlet pipe in the demolding liquid barrel is spiral.
The beneficial effects of the invention are as follows: the invention provides a multifunctional grass cutting head convenient to replace and production equipment thereof, which can automatically collect the cooling liquid at the hottest section in the production process of a grass cutting head die-casting product, and back-wash the cooling liquid into a die in the process of opening the die, so that the die is heated in a heat-preserving way, the process of heating the die is omitted, meanwhile, the demolding liquid with smaller temperature difference with the die can be automatically sprayed, the structure is simple, and the investment of a high-cost manipulator is avoided.
Drawings
FIG. 1 is a schematic view of a grass cutting head according to the present invention.
Fig. 2 is a schematic view of the die casting machine of the present invention.
Fig. 3 is a plan view of the die casting machine of the present invention.
Fig. 4 is a cross-sectional view of a preheating device according to the present invention.
FIG. 5 is a cross-sectional view of a mold release liquid spraying apparatus according to the present invention.
FIG. 6 is a schematic diagram of a mold release liquid spraying apparatus according to the present invention.
FIG. 7 is a schematic view of a liquid outlet pipe according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description: referring to fig. 1-7, a multifunctional grass mowing head convenient to replace and production equipment thereof comprise a motor 1, a gearbox 2 and a grass mowing device 3, wherein the motor 1 is arranged on the gearbox 2 and is connected with an input shaft of the gearbox 2, the grass mowing device 3 is connected to an output shaft of the gearbox 2, the grass mowing device 3 comprises a rotary disc 31, the rotary disc 31 is arranged on the output shaft 21, mounting holes 32 are formed in the circumferential direction of the rotary disc 31, the mounting holes 32 are used for mounting grass mowing pieces 33, and the grass mowing pieces 33 can be ropes, straight rods, chains and blades.
The rotary disk 31 is in contact with grass for a long time and rotates at a high speed, so that the heat dissipation performance and strength of the rotary disk 31 are required, and the rotary disk 31 is manufactured by die casting, so that the strength problem is solved.
The production facility of grass-cutting head, this equipment is used for producing the rotary disk 31 of grass-cutting head specifically, and this equipment includes die casting machine 4, and it includes flow channel 41, fixed plate 42, sliding plate 43 and chassis, and fixed plate 42 sets up on the chassis, and with flow channel 41 intercommunication, die casting molten metal enters into in the fixed plate 42 from flow channel 41, sliding plate 43 slides and sets up on the chassis, and its rear end is connected with the pneumatic cylinder, can reciprocate under the effect of pneumatic cylinder.
The die casting machine 4 is further provided with a die 5, a preheating device 6, a heat dissipation device 7 and a demolding liquid spraying device 8, the die 5 comprises a left die 51 and a right die 52, wherein the left die 51 is arranged on the fixed plate 42, the right die 52 is arranged on the sliding plate 43, and the sliding plate 43 slides back and forth to enable the left die and the right die of the die 5 to be separated or folded.
The mold 5 is further provided with a heat dissipation water channel 54, the heat dissipation water channel 54 comprises a liquid outlet end 541 and a liquid inlet end 542, the heat dissipation device 7 comprises a cooling liquid pool 71, a liquid outlet pipe 72, a driving pump and a liquid inlet pipe, the driving pump is arranged on the cooling liquid pool 71 and is connected with the liquid inlet end 542 through the liquid inlet pipe, and the heat dissipation device is used for circulating cooling liquid for the mold.
The preheating device 6 comprises a piston box 61, a piston rod 62 and a floating block 63, the piston rod 62 is arranged in the piston box 61, the piston box 61 and the piston rod 62 are respectively connected to the left die 51 and the right die 52, the right die 52 slides back and forth to drive the piston rod 62 to perform piston motion, the piston box 61 is provided with a liquid inlet 611, a first liquid outlet 612, a second liquid outlet 613, a first channel 614, a sliding cavity 615 and a liquid storage cavity 616, the liquid inlet 611 is communicated with the liquid outlet 541, the first liquid outlet 612 is communicated with the liquid inlet 542, the first channel 614 is communicated with the sliding cavity 615 and the liquid storage cavity 616, one end of a liquid outlet pipe 72 is connected to the second liquid outlet 613, the other end is connected to the cooling liquid pool 71, the floating block 63 slides in the sliding cavity 615 in a guiding manner, a second channel 631 is arranged in the floating block 63, the first liquid outlet 612, the second liquid outlet 613 and the liquid inlet 611 are all provided with one-way valves, when the piston rod 62 slides back, the liquid storage cavity 616 is in a negative pressure, the high-temperature cooling liquid is easy to enter the piston box 61 when the circulation begins, and the high-temperature cooling liquid is easy to enter the piston box at the back end.
The floating block 63 is arranged with buoyancy material, wherein when the left die 51 and the right die 52 are combined, the liquid storage cavity 616 is in the largest space state, no liquid is in the liquid storage cavity 616 at the moment, the floating block 63 is not subjected to buoyancy force at the moment, so that the second channel 631 on the floating block is communicated with the first channel 614 under the action of self gravity force, the liquid inlet 611 is communicated with the liquid storage cavity 616, at the moment, the die casting machine starts to inject metal liquid into the die 5, the overall temperature of the die 5 is rapidly increased after the metal liquid is injected, the cooling water channel 54 in the die 5 is filled with cooling liquid at the initial state, the cooling liquid temperature is rapidly increased after the metal liquid is injected, the heat dissipation device 7 starts to work at the moment after the metal liquid is completely injected, the driving pump starts to rotate, the cooling liquid in the cooling liquid pool 71 is introduced into the die 5, the high-temperature cooling liquid in the die 5 is introduced into the liquid storage cavity 616, after the liquid storage cavity 616 is filled with the cooling liquid, the second channel 631 on the die is automatically floated, the second channel 631 is communicated with the second liquid outlet 613, the liquid inlet 611 is rapidly communicated with the second liquid storage cavity 613, the cooling liquid is rapidly circulated through the cooling liquid inlet 613, the cooling liquid is rapidly circulated to the head part 72, and the cooling liquid is rapidly collected after the cooling liquid is completely circulated to the cooling liquid is completely filled.
After the heat sink 7 is operated for a certain period of time, the pump is driven to stop working after the molten metal in the mold 5 is solidified, at this time, the right mold 52 starts to open backward, the solidified product automatically drops, and the piston rod 62 is extended, so that the space of the liquid storage cavity 616 is reduced, the high-temperature cooling liquid in the liquid storage cavity is extruded from the first liquid outlet 612, and the first liquid outlet 612 is communicated with the liquid inlet 542, so that the extruded high-temperature cooling liquid enters the mold again, and in the process that the piston rod 62 extends forward, the floating block 62 is always filled with liquid, and the second channel 631 thereon is always communicated with the second liquid outlet 613, so that the cooling liquid with lower temperature in the mold 5 is discharged into the cooling liquid pool 71, so that the mold 5 is flushed with the high-temperature cooling liquid after being opened, so that the temperature of the mold 5 is increased, and the mold 5 is not heated again.
After the product falls, the right die 52 is combined with the left die 51 forward, the piston rod 62 is retracted in the combining process, the space of the liquid storage cavity 616 is increased, and the liquid below the floating block 62 falls back into the liquid storage cavity 616 at this time, so that the support for the floating block 62 disappears, the floating block 62 falls back down, the second channel 631 thereon is communicated with the first channel 614, the initial state is restored, and the die 5 is filled with high-temperature cooling liquid at this time, so that the die 5 can directly perform die casting work without preheating.
The die casting machine 4 is further provided with a demolding liquid spraying device 8, which comprises a spraying pipe 81, a sliding block 82, a sliding frame 83, a thread sleeve 84 and a demolding liquid barrel 85, threads are arranged on the outer ring of the spraying pipe 81, the upper end of the spraying pipe is connected with the demolding liquid barrel 85 through a hose, the lower end of the spraying pipe is provided with a spraying ball 818 for spraying demolding liquid, the spraying pipe 81 is provided with a guide rod 811, the spraying pipe 81 is arranged on the sliding block 82 in a guiding sliding manner through the guide rod 811, a spraying channel 812 is arranged in the spraying pipe 81, a switch cavity 813 is arranged between the spraying pipe and the spraying channel 812 vertically, a switch plate 814 is arranged in the switch cavity, a through hole 8141 is formed in the switch plate 814, and the left and right sliding of the switch plate 814 can control the smoothness and blocking of the spraying channel 812.
The demolding liquid barrel 85 is connected with the upper end of the spraying channel 812 through a hose, certain air pressure is arranged in the demolding liquid barrel 85, after the switch plate 814 is opened, demolding liquid in the demolding liquid barrel 85 enters the spraying pipe 81 under the action of the air pressure and is sprayed out from the spraying ball 818, one section of the liquid outlet pipe 72 is positioned in the demolding liquid barrel 85, the section of the liquid outlet pipe 72 is made of heat-conducting metal materials and is spiral, so that cooling liquid at high temperature passes through the demolding liquid barrel 85 when the cooling liquid circulates, the temperature of the demolding liquid in the demolding liquid barrel 85 is increased, the temperature of the mold 5 is not reduced when the demolding liquid is sprayed on the mold, the temperature of the mold 5 is further kept, and the mold 5 can be rapidly put into operation again.
The sliding frame 83 is arranged on the left die 51, a first long groove 831 is formed in the sliding frame 83, the sliding block 82 is elastically guided to slide and arranged on the first long groove 831, a second elastic piece 832 is arranged in the first long groove 831, two ends of the second elastic piece 832 are respectively propped against the sliding block 82 and the end wall of the first long groove 831, a winding shaft 821 is arranged on the sliding block 82, one end of a pull rope 86 is arranged at the rear end of the first long groove 831, the other end of the pull rope winds around the winding shaft 821 and is backwards arranged on the right die 52, a thread sleeve 84 is rotatably arranged on the sliding block 82, the injection pipe 81 is in threaded connection with the thread sleeve 84, a first gear 841 is arranged on the thread sleeve 84, and a rack 521 is arranged on the right die 52 and is in meshed connection with the first gear 841.
The bottom end of the guide rod 811 is further provided with a pulling rod 816 in a sliding manner, a limiting block 8161 is arranged at the bottom end of the pulling rod 816, when the injection pipe 81 moves upwards, the injection pipe can be pressed against the bottom surface of the sliding block 82, the rear end of the switch plate 814 is provided with a first elastic piece 815, one end of a second pull rope 817 is connected at the same time, and the other end of the second pull rope 817 is connected to the pulling rod 816.
Wherein when the right die 52 is started backwards, the rack 521 is driven to move backwards together, and one end of the pull rope 86 is pulled to move backwards, so that the sliding block 82 is driven to move backwards together, and the sliding block 82 moves a distance which is half of the moving distance of the right die 52, so that the sliding block 82 is always at the middle position of the left die 51 and the right die 52, and the moving distance of the rack 521 is consistent with that of the right die 52, therefore, the rack 521 can drive the first gear 841 to rotate, so that the thread bush 84 rotates, and the injection pipe 81 slides downwards.
When the left die and the right die are combined, the limiting block 8161 at the bottom end of the pulling rod 816 is propped against the bottom surface of the sliding block 82, the switch plate 814 is pulled by the second pulling rope 817, the through hole 8141 on the switch plate is dislocated with the injection channel 812, the injection pipe 81 starts to descend, the second pulling rope 817 starts to loosen, the switch plate 814 starts to move backwards, after the injection ball 818 at the lower end of the injection pipe 81 moves downwards into the die, the through hole 8141 on the switch plate 814 is communicated with the injection channel 812, so that the demolding liquid in the demolding liquid barrel 85 enters into the injection pipe 81 under the action of air pressure, is sprayed from the injection ball 818 and is sprayed on the cavity surface of the die, and when the right die 52 moves to the rearmost end, the injection ball 818 is positioned at the lowermost end of the die.
When the right die 52 is folded forwards, the second pulling rope 817 is loosened, the sliding block 82 slides forwards under the action of the second elastic piece 832, and the moving distance of the sliding block 82 is half of the moving distance of the right die 52, so that the rack 521 drives the first gear 841 to rotate reversely, the threaded sleeve 84 is made to rotate reversely, the ejector tube 81 moves upwards, when the ejector ball 818 is about to leave the upper end of the die, the limiting block 8161 at the bottom end of the pulling rod 816 abuts against the bottom surface of the sliding block 82, at the moment, the ejector tube 81 continues to move upwards, the pulling rod 816 stays in place, the second pulling rope 817 is pulled relatively, the pulling switch plate 814 moves, the through hole 8141 on the switch plate is dislocated from the ejection channel 812, and the ejection of the demolding liquid is stopped automatically.
The working principle or the using method is as follows:
in the initial state, the liquid storage cavity 616 is in the largest space state, no liquid exists in the liquid storage cavity 616, at the moment, the floating block 63 is not subjected to buoyancy, so that the second channel 631 on the liquid storage cavity is communicated with the first channel 614 under the action of self gravity, the liquid inlet 611 is communicated with the liquid storage cavity 616, at the moment, the die casting machine starts to inject metal liquid into the die 5, the overall temperature of the die 5 is rapidly increased after the metal liquid is injected, in the initial state, the cooling water channel 54 in the die 5 is filled with cooling liquid, the temperature of the cooling liquid is rapidly increased after the metal liquid is injected, at the moment, the heat dissipation device 7 starts to work, the driving pump starts to rotate, the cooling liquid in the cooling liquid pool 71 enters the die 5, the high-temperature cooling liquid in the die 5 firstly enters the liquid storage cavity 616, after the liquid storage cavity 616 is fully filled, the second channel 631 on the die is communicated with the second liquid outlet 613, the whole temperature of the liquid inlet 611 is rapidly increased, the cooling liquid storage cavity is rapidly communicated with the second liquid outlet 613, the cooling liquid is then is circulated to the head portion of the die 5 through the liquid outlet pipe 72, the cooling liquid in the liquid pool is automatically circulated to the cooling liquid pool 71 after the cooling liquid is fully injected, and the cooling liquid is rapidly cooled and finally cooled and the cooling liquid is completely collected.
After the heat sink 7 is operated for a certain period of time, the pump is driven to stop working after the molten metal in the mold 5 is solidified, at this time, the right mold 52 starts to open backward, the solidified product automatically drops, and the piston rod 62 is extended, so that the space of the liquid storage cavity 616 is reduced, the high-temperature cooling liquid in the liquid storage cavity is extruded from the first liquid outlet 612, and the first liquid outlet 612 is communicated with the liquid inlet 542, so that the extruded high-temperature cooling liquid enters the mold again, and in the process that the piston rod 62 extends forward, the floating block 62 is always filled with liquid, and the second channel 631 thereon is always communicated with the second liquid outlet 613, so that the cooling liquid with lower temperature in the mold 5 is discharged into the cooling liquid pool 71, so that the mold 5 is flushed with the high-temperature cooling liquid after being opened, so that the temperature of the mold 5 is increased, and the mold 5 is not heated again.
When the right die 52 is started backwards, the rack 521 is driven to move backwards together, one end of the pull rope 86 is pulled to move backwards, the sliding block 82 is driven to move backwards together, the sliding block 82 moves for half the distance of the right die 52 when the sliding block 82 moves, the sliding block 82 is always positioned in the middle of the left die 51 and the right die 52, the moving distance of the rack 521 is consistent with that of the right die 52, and therefore the rack 521 can drive the first gear 841 to rotate, the threaded sleeve 84 is driven to rotate, and the injection pipe 81 slides downwards.
When the left die and the right die are combined, the limiting block 8161 at the bottom end of the pulling rod 816 is propped against the bottom surface of the sliding block 82, the switch plate 814 is pulled by the second pulling rope 817, the through hole 8141 on the switch plate is dislocated with the injection channel 812, the injection pipe 81 starts to descend, the second pulling rope 817 starts to loosen, the switch plate 814 starts to move backwards, after the injection ball 818 at the lower end of the injection pipe 81 moves downwards into the die, the through hole 8141 on the switch plate 814 is communicated with the injection channel 812, so that the demolding liquid in the demolding liquid barrel 85 enters into the injection pipe 81 under the action of air pressure, is sprayed from the injection ball 818 and is sprayed on the cavity surface of the die, and when the right die 52 moves to the rearmost end, the injection ball 818 is positioned at the lowermost end of the die.
After the right die 52 is completely opened, the left die 51 is combined with the right die forward, the piston rod 62 is retracted in the combining process, the space of the liquid storage cavity 616 is increased, and the liquid below the floating block 62 falls back into the liquid storage cavity 616 at the moment, so that the support on the floating block 62 disappears, the floating block 62 falls back downwards, the second channel 631 on the floating block 62 is communicated with the first channel 614, the initial state is restored, and the die 5 is filled with high-temperature cooling liquid at the moment, so that the die 5 can directly perform die casting work without preheating.
When the right die 52 is folded forwards, the second pulling rope 817 is loosened, the sliding block 82 slides forwards under the action of the second elastic piece 832, and the moving distance of the sliding block 82 is half of the moving distance of the right die 52, so that the rack 521 drives the first gear 841 to rotate reversely, the threaded sleeve 84 is made to rotate reversely, the ejector tube 81 moves upwards, when the ejector ball 818 is about to leave the upper end of the die, the limiting block 8161 at the bottom end of the pulling rod 816 abuts against the bottom surface of the sliding block 82, at the moment, the ejector tube 81 continues to move upwards, the pulling rod 816 stays in place, the second pulling rope 817 is pulled relatively, the pulling switch plate 814 moves, the through hole 8141 on the switch plate is dislocated from the ejection channel 812, and the ejection of the demolding liquid is stopped automatically.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. Multifunctional grass-mowing head production equipment convenient to replace is characterized in that: the die casting machine comprises a die casting machine (4), wherein the die casting machine comprises a liquid flow channel (41), a fixed plate (42) and a sliding plate (43), a die (5), a preheating device (6) and a heat dissipation device (7) are arranged on the die casting machine (4), the die (5) comprises a left die (51) and a right die (52), the left die (51) is arranged on the fixed plate (42), the right die (52) is arranged on the sliding plate (43), when the left die (51) and the right die (52) are combined, a die casting liquid enters the die (5) through the liquid flow channel (41) so as to be die-cast, a heat dissipation water channel (54) is arranged in the die (5), and the heat dissipation water channel (54) comprises a liquid outlet end (541) and a liquid inlet end (542);
the preheating device (6) comprises a piston box (61), a piston rod (62) and a floating block (63), wherein a piston of the piston rod (62) is arranged in the piston box (61), the piston box (61) and the piston rod (62) are respectively connected to a left die (51) and a right die (52), and the right die (52) slides back and forth to drive the piston rod (62) to perform piston movement back and forth;
the piston box (61) is provided with a liquid inlet (611), a first liquid outlet (612), a second liquid outlet (613), a first channel (614), a sliding cavity (615) and a liquid storage cavity (616), the liquid inlet (611) is communicated with a liquid outlet end (541), the first liquid outlet (612) is communicated with a liquid inlet end (542), the first channel (614) is communicated with the sliding cavity (615) and the liquid storage cavity (616), the floating block (63) is arranged in the sliding cavity (615) in a guiding sliding manner, a second channel (631) is arranged in the floating block (63), when the floating block (63) is at the lower end, the second channel (631) is communicated with the first channel (614), so that the liquid inlet (611) is communicated with the liquid storage cavity (616), when the floating block (63) is at the upper end, the second channel (631) is communicated with the second liquid outlet (613), and the first channel (614) is blocked by the floating block (63);
the floating block (63) is made of solid buoyancy materials, when the left die (51) and the right die (52) are combined, the liquid storage cavity (616) is largest in space, no liquid exists in the liquid storage cavity, after the die casting liquid is injected, the heat dissipation device (7) is started, so that the metal liquid is solidified, and the heat dissipation liquid in the die firstly enters the liquid storage cavity (616).
2. The grass cutting head production apparatus as set forth in claim 1, wherein: the heat dissipation device (7) comprises a cooling liquid pool (71), a liquid outlet pipe (72), a driving pump and a liquid inlet pipe, one end of the liquid outlet pipe (72) is connected to the second liquid outlet (613), the other end of the liquid outlet pipe is connected to the cooling liquid pool (71), the driving pump is arranged on the cooling liquid pool (71) and is connected with the liquid inlet end (542) through the liquid inlet pipe, and the cooling liquid circulation is performed on the die;
and the left die (51) and the right die (52) are respectively provided with a heat dissipation water channel (54), and are respectively provided with a preheating device (6).
3. The grass cutting head production apparatus as set forth in claim 2, wherein: the die casting machine (4) is also provided with a demolding liquid spraying device (8) which comprises a spraying pipe (81), a sliding block (82), a sliding frame (83), a thread sleeve (84) and a demolding liquid barrel (85), wherein threads are arranged on the outer ring of the spraying pipe (81), the upper end of the spraying pipe is connected with the demolding liquid barrel (85) through a hose, and a spraying ball (818) is arranged at the lower end of the spraying pipe and used for spraying demolding liquid;
the sliding frame (83) is arranged on the left die (51), a first long groove (831) is formed in the sliding frame (83), the sliding block (82) is elastically guided to slide and arranged on the first long groove (831), a winding shaft (821) is arranged on the sliding block (82), one end of a pull rope (86) is arranged at the rear end of the first long groove (831), and the other end of the pull rope bypasses the winding shaft (821) and is backwards arranged on the right die (52);
the screw sleeve (84) is rotatably arranged on the sliding block (82), the injection pipe (81) is in threaded connection in the screw sleeve (84), a first gear (841) is arranged on the screw sleeve (84), and the right die (52) is provided with a rack (521) and is in meshed connection with the first gear (841).
4. A grass-cutting head production apparatus as claimed in claim 3, wherein: the jet pipe (81) is provided with a guide rod (811), and is slidably guided by the guide rod (811) on the slide block (82).
5. The grass-cutting head production apparatus as set forth in claim 4, wherein: the injection pipe (81) is internally provided with an injection channel (812), the vertical and injection channels (812) are provided with a switch cavity (813), a switch plate (814) is arranged in the vertical and injection channels in a sliding mode, a through hole (8141) is formed in the switch plate (814), and the switch plate (814) can control the smoothness and blocking of the injection channel (812) through sliding left and right.
6. The grass cutting head production apparatus as set forth in claim 5, wherein: the guide rod (811) bottom still slides and is provided with pulling rod (816), and pulling rod (816) bottom is provided with stopper (8161), when injection pipe (81) upwards moves, can press touch on slider (82) bottom surface, switch board (814) rear end is provided with first elastic component (815), still is connected with the one end of second stay cord (817) simultaneously, and the other end is connected on pulling rod (816).
7. The grass cutting head production apparatus as set forth in claim 1, wherein: one section of the liquid outlet pipe (72) is positioned in the demolding liquid barrel (85), and the section of the liquid outlet pipe (72) is made of heat-conducting metal.
8. The grass cutting head production apparatus as set forth in claim 7, wherein: the liquid outlet pipe (72) in the demolding liquid barrel (85) is spiral.
9. A multifunctional grass-cutting head which is produced by the production equipment according to any one of claims 1-8 and is convenient to replace, characterized in that: the grass-mowing device comprises a motor (1), a gearbox (2) and a grass-mowing device (3), wherein the motor (1) is arranged on the gearbox (2) and is connected with an input shaft of the gearbox (2), and the grass-mowing device (3) is connected to an output shaft of the gearbox (2);
the grass mowing device (3) comprises a rotary disc (31), the rotary disc (31) is arranged on the output shaft (21), mounting holes (32) are formed in the circumferential direction of the rotary disc (31), and the mounting holes (32) are used for mounting grass mowing pieces (33);
the grass cutting element (33) can be a rope, a straight rod, a chain and a blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211086890.3A CN115349346B (en) | 2022-09-07 | 2022-09-07 | Multifunctional grass mowing head convenient to replace and production equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211086890.3A CN115349346B (en) | 2022-09-07 | 2022-09-07 | Multifunctional grass mowing head convenient to replace and production equipment thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115349346A CN115349346A (en) | 2022-11-18 |
| CN115349346B true CN115349346B (en) | 2023-08-01 |
Family
ID=84007011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211086890.3A Active CN115349346B (en) | 2022-09-07 | 2022-09-07 | Multifunctional grass mowing head convenient to replace and production equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115349346B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212064907U (en) * | 2020-05-09 | 2020-12-04 | 常州戴雅托普机械有限公司 | Grass trimmer with grass trimming head capable of being switched rapidly |
| CN215683383U (en) * | 2021-09-18 | 2022-02-01 | 格力博(江苏)股份有限公司 | Grass trimmer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004008021A1 (en) * | 2004-02-19 | 2005-09-08 | M Badda Rene | Mower for cutting back and shredding rows of ornamental plants, especially heathers, has parallel rotating cutter blades which are driven by single IC engine, has one or two pairs of wheels and is manually guided |
| CN107457368B (en) * | 2017-07-24 | 2019-11-12 | 绍兴市振杨机械有限公司 | A kind of casting mould of thin-walled impeller |
| CN111656947A (en) * | 2019-03-07 | 2020-09-15 | 南京德朔实业有限公司 | Grass rope suitable for grass mower |
| CN212573553U (en) * | 2020-07-01 | 2021-02-23 | 金华市尚普电器有限公司 | Hand-push type grass mower with adjustable grass mowing height |
| CN113102732A (en) * | 2021-04-12 | 2021-07-13 | 岳福连 | Integrated casting device for internal sleeve of tubular cast iron part |
-
2022
- 2022-09-07 CN CN202211086890.3A patent/CN115349346B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212064907U (en) * | 2020-05-09 | 2020-12-04 | 常州戴雅托普机械有限公司 | Grass trimmer with grass trimming head capable of being switched rapidly |
| CN215683383U (en) * | 2021-09-18 | 2022-02-01 | 格力博(江苏)股份有限公司 | Grass trimmer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115349346A (en) | 2022-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107160649B (en) | Injection molding machine with external cooling device | |
| CN112060474A (en) | Working method of automatic demoulding type injection mould with replaceable mould | |
| CN115349346B (en) | Multifunctional grass mowing head convenient to replace and production equipment thereof | |
| CN209920478U (en) | Plastic precision injection molding processing device | |
| CN114260435A (en) | Automatic horizontal cold chamber alloy die casting machine of material loading | |
| CN115415500B (en) | But angle regulation's chain saw processing equipment of head of beating grass | |
| CN113619074A (en) | Cooling device with dustproof structure for blow molding machine | |
| CN117507271A (en) | Cutting device and cutting method for injection molding piece | |
| CN115771240A (en) | Injection molding mold of circulating water-cooling mechanism | |
| CN108068283A (en) | The injection moulding method and equipment of secondary locked mode | |
| CN215279817U (en) | New energy automobile control lever die casting die | |
| CN214000687U (en) | Die carrier that fixed effectual of shock attenuation | |
| CN108819149A (en) | A kind of injection mould closing demoulding mechanism | |
| CN110281465B (en) | Cooling system of plastic pipe injection mold | |
| CN218366687U (en) | Machine part machining die convenient to demolding | |
| CN221136779U (en) | Plastic part surface polishing and spraying processing equipment | |
| CN214056299U (en) | Injection mold frame with good cooling effect | |
| CN218139688U (en) | Shedder for injection moulding processing | |
| CN219213943U (en) | Shoe mold convenient for circulating cooling | |
| CN114953330B (en) | Injection molding machine with self-cooling injection molding machine head | |
| CN219634455U (en) | Water-cooled bicolor mold | |
| CN220923165U (en) | Forming die is used in production of refrigerator injection molding | |
| CN221018566U (en) | Screw die with ejection structure | |
| CN218803694U (en) | Die-casting zero-angle insertion plastic die | |
| CN217044569U (en) | Copper part forming equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |