CN117605726B - Control device and control method for die-casting machine die hydraulic vacuum valve - Google Patents
Control device and control method for die-casting machine die hydraulic vacuum valve Download PDFInfo
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- CN117605726B CN117605726B CN202311597341.7A CN202311597341A CN117605726B CN 117605726 B CN117605726 B CN 117605726B CN 202311597341 A CN202311597341 A CN 202311597341A CN 117605726 B CN117605726 B CN 117605726B
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- 238000004512 die casting Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims 4
- 239000003921 oil Substances 0.000 abstract description 91
- 239000010720 hydraulic oil Substances 0.000 abstract description 28
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- 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
- B22D17/14—Machines with evacuated die cavity
-
- 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
- B22D17/32—Controlling equipment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a control device and a control method for a hydraulic vacuum valve of a die casting machine die, comprising the following steps: the control device comprises a control device body, wherein the control device body comprises an oil circuit block, an oil charge valve, a reversing valve, a high-speed unloading valve and a pressure reducing valve, the oil charge valve and the high-speed unloading valve are arranged on the oil circuit block, the reversing valve is vertically arranged at one end of the oil circuit block, and the pressure reducing valve is arranged at the other end of the oil circuit block. The device consists of an oil filling valve, a reversing valve, a high-speed unloading valve, a pressure reducing valve, an energy accumulator, a pressure sensor and the like, adopts a die casting machine hydraulic oil way or an external hydraulic station to supply oil, rapidly realizes the opening and closing actions of the die hydraulic vacuum valve, and when the pressure sensor detects that the pressure value of the energy accumulator is too low, the oil filling valve supplies oil to the energy accumulator, and when die casting machine equipment is closed in place, the hydraulic vacuum valve of the die is opened through the reversing valve, and when the injection rod of the die casting machine equipment is injected to a set position, the hydraulic vacuum valve of the die can be closed within 20ms through the reversing valve and the high-speed unloading valve.
Description
Technical Field
The invention relates to the technical field of hydraulic vacuum valves, in particular to a control device and a control method for a die-casting machine die hydraulic vacuum valve.
Background
The Chinese patent application No. 202020877732.X discloses a high-vacuum die-casting mold hydraulic vacuum valve, which comprises a mold and a hydraulic driver, wherein the mold comprises a movable mold plate and a fixed mold plate, a mold cavity and a vacuum air suction port capable of communicating with the mold cavity are reserved between the movable mold plate and the fixed mold plate after the movable mold plate and the fixed mold plate are mutually spliced, and a vacuum valve seat capable of being closed by a vacuum valve core is arranged between the vacuum air suction port and the mold cavity; the hydraulic driver comprises a hydraulic cylinder connected with an opening oil way and a closing oil way, the vacuum valve core stretches and contracts in the hydraulic cylinder, the vacuum valve seat is provided with a through hole, the upper part of the through hole is communicated with the die cavity, the upper part of the vacuum valve core penetrates through the through hole, and the vacuum air suction port is positioned in the direction perpendicular to the through hole. The mechanism not only adopts the sensitive vacuum valve to control the suction on-off of the die-casting mould, but also has large ventilation area, high suction efficiency, unaffected concentricity, easy installation and reliable sealing performance.
According to the technical scheme, the hydraulic vacuum valve of the high-vacuum die casting mold opens and closes the hydraulic oil cylinder through the opening oil way and the closing oil way, but the quick opening and closing of the vacuum valve are not limited how to be realized more quickly, and the use requirements of users cannot be met. Therefore, there is a need to propose a control device for a hydraulic vacuum valve of a die casting machine, which at least partially solves the problems existing in the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides a control device for a hydraulic vacuum valve of a die casting machine, comprising: the control device comprises a control device body, wherein the control device body comprises an oil circuit block, a reversing valve group, a high-speed unloading valve, a pressure reducing valve and an oil filling valve, the oil filling valve and the high-speed unloading valve are arranged on the oil circuit block, the reversing valve group is vertically arranged at one end of the oil circuit block, and the pressure reducing valve is arranged at the other end of the oil circuit block.
According to the control device of the die casting machine die hydraulic vacuum valve, the pressure reducing valve is provided with the energy accumulator, and one side of the pressure reducing valve is provided with the pressure sensor.
According to the control device of the die casting machine die hydraulic vacuum valve, the energy accumulator comprises a pressure tank body and an inner flexible diaphragm body, the bottom of the pressure tank body is connected to the pressure reducing valve through an oil way joint, the inner flexible diaphragm body is arranged in the pressure tank body, an inflation screw adjusting screw is arranged at the top of the pressure tank body, and a concave pressure cap is arranged at the bottom of the inner flexible diaphragm body.
According to the control device for the hydraulic vacuum valve of the die casting machine die, provided by the embodiment of the invention, two oil holes are formed in the back surface of the oil path block, joints are respectively arranged on the two oil holes, and the joints are connected with a hydraulic conveying pipe through a leakage-proof module.
According to the control device of the die casting machine die hydraulic vacuum valve, the leakage-proof module comprises a first C-shaped leakage-proof jacket, a second C-shaped leakage-proof jacket and a plurality of clamping mechanisms, wherein a plurality of first clamping convex seats are arranged on the side wall of the first C-shaped leakage-proof jacket, a plurality of second clamping convex seats are arranged on the side wall of the second C-shaped leakage-proof jacket, the clamping mechanisms are fixedly arranged in the first clamping convex seats and the second clamping convex seats in a penetrating mode, the joint and the hydraulic conveying pipe are butted in the first C-shaped leakage-proof jacket and the second C-shaped leakage-proof jacket, a first C-shaped outer jacket is further arranged on the first C-shaped leakage-proof jacket, a second C-shaped outer jacket is further arranged on the second C-shaped leakage-proof jacket, and the first C-shaped outer jacket is butted with the second C-shaped outer jacket.
According to the control device of the die casting machine die hydraulic vacuum valve, the clamping mechanism comprises a first clamping piece and a second clamping piece, the first clamping piece comprises a screw body, a stop ring and a stop spring, an upper screw seat is arranged on the screw body, the stop ring and the stop spring are sleeved on the screw body and are located below the upper screw seat, and the stop spring is located in an upper clamping groove of the first clamping convex seat and abuts against the stop ring.
According to the control device for the hydraulic vacuum valve of the die casting machine die, the second clamping piece is arranged in the lower clamping groove of the second clamping convex seat, the second clamping piece comprises an inner seat body and a lower clamping seat, the inner seat body is arranged on the lower clamping seat, a plurality of pre-tightening springs are arranged between the inner seat body and the lower clamping seat, and the screw rod body penetrates through the first clamping convex seat and extends to be connected with the lower clamping seat.
According to the control device for the die casting machine die hydraulic vacuum valve, the inner base body is provided with the concave grooves, the lower clamping seat is provided with the outer fin plates, the outer fin plates correspond to the side gaps of the concave grooves, a sliding clamping block is arranged between two adjacent outer fin plates, the outer fin plates are provided with special-shaped holes, sideslip rods of the sliding clamping block penetrate through the special-shaped holes, the inner wall of the sliding clamping block is provided with sideslip grooves corresponding to the screw rod body, and the pre-tightening springs are arranged in the inner grooves between the two adjacent concave grooves.
According to the control device for the die casting machine die hydraulic vacuum valve, the lower end of the upper screw rod seat is provided with a plurality of first stop thorns, the upper end of the stop ring is provided with a plurality of second stop thorns, and the slope surface of the first stop thorns is in sliding connection with the slope surface of the second stop thorns.
The invention also provides a control method of the die-casting machine die hydraulic vacuum valve, which comprises the control device of the die-casting machine die hydraulic vacuum valve, and the control method comprises the following steps:
Step one, an oil filling valve receives an opening instruction sent by a controller and is opened, so that hydraulic oil enters a first channel through a main oil inlet hole and enters the oil filling valve through the first channel;
step two, the pressure reducing valve receives an opening instruction sent by the controller and is opened, so that hydraulic oil enters the second channel after passing through the oil filling valve and enters the pressure reducing valve through the second channel;
step three, the reversing valve group receives an opening instruction sent by the controller and is opened, so that hydraulic oil enters the reversing valve group after entering a third channel through the pressure reducing valve;
step four, hydraulic oil enters the equipment through a fourth channel after coming out of the reversing valve group;
Fifthly, the reversing valve group receives the opening instruction sent by the controller again and is opened, and hydraulic oil in the equipment enters the oil way block through the fifth channel and enters the reversing valve group;
And step six, hydraulic oil enters a sixth channel after passing through the reversing valve group, and returns to the hydraulic tank through the main oil return channel.
Compared with the prior art, the invention at least comprises the following beneficial effects:
The device comprises an oil charge valve, a reversing valve, a high-speed unloading valve, a pressure reducing valve, an energy accumulator, a pressure sensor and the like, adopts a die casting machine hydraulic oil way or an external hydraulic station to supply oil, can rapidly realize the opening and closing actions of a die hydraulic vacuum valve, and can supply oil to the energy accumulator when the pressure sensor detects that the pressure value of the energy accumulator is too low, and the hydraulic vacuum valve of the die is opened through the reversing valve of the device after die casting machine equipment is closed in place.
Other advantages, objects and features of the present invention will be in part apparent to those skilled in the art from consideration of the specification and practice of the invention as set forth in the appended claims.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a rear view of the structure of the present invention.
Fig. 3 is a top view of the structure of the present invention.
Fig. 4 is a schematic structural view of an oil block according to the present invention.
Fig. 5 is a schematic diagram of the internal structure of the accumulator according to the present invention.
Fig. 6 is a schematic structural view of a main oil inlet hole in the present invention.
Fig. 7 is a schematic view of the back structure of the oil passage block in the present invention.
Fig. 8 is a schematic view of the internal structure of the first channel in the present invention.
Fig. 9 is a schematic diagram of the internal structure of the second channel in the present invention.
Fig. 10 is a schematic view of the internal structure of the third channel in the present invention.
Fig. 11 is a schematic diagram of the internal structure of the fourth channel in the present invention.
Fig. 12 is a schematic diagram of the internal structure of the fifth channel in the present invention.
Fig. 13 is a schematic view showing the internal structure of the eighth passage in the present invention.
Fig. 14 is a bottom view of the leak-proof module of the present invention.
Fig. 15 is a top view of the leak-proof module of the present invention.
Fig. 16 is a schematic view of a portion of a leak protection module according to the present invention.
Fig. 17 is a schematic diagram of a portion of a leak protection module according to the present invention.
Fig. 18 is a schematic structural view of a first clamping member according to the present invention.
Fig. 19 is a schematic structural view of a second clamping member according to the present invention.
Fig. 20 is an enlarged schematic view of the portion a of fig. 14 according to the present invention.
Fig. 21 is an enlarged schematic view of the portion B of fig. 15 according to the present invention.
Fig. 22 is an enlarged schematic view of the portion C of fig. 16 according to the present invention.
Fig. 23 is an enlarged schematic view of the portion D of fig. 17 according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 4, the present invention provides a control device for a hydraulic vacuum valve of a die casting machine, comprising: the control device comprises a control device main body 100, wherein the control device main body 100 comprises an oil path block 1, a reversing valve group 2, a high-speed unloading valve 3, a pressure reducing valve 4 and an oil filling valve 5, the oil filling valve 5 and the high-speed unloading valve 3 are arranged on the oil path block 1, the reversing valve group 2 is vertically arranged at one end of the oil path block 1, and the pressure reducing valve 4 is arranged at the other end of the oil path block 1; further, the oil block 1 is provided on the oil path seat 7; further, the pressure reducing valve 4 is provided with an accumulator 6, and one side is provided with a pressure sensor 60.
Further, the accumulator 6 includes a pressure tank 61, an inner flexible diaphragm 62, the bottom of the pressure tank 61 is connected to the pressure reducing valve 4 through an oil path joint 63, the inner flexible diaphragm 62 is disposed in the pressure tank 61, and an inflation screw adjusting screw 64 is disposed at the top of the pressure tank 61. Wherein the bottom of the inner flexible diaphragm body 62 is provided with a concave pressure cap 65.
The invention provides a control device of a hydraulic vacuum valve of a die casting machine die, which comprises the following components: a control device main body 100, wherein the control device main body 100 comprises an oil path block 1, a reversing valve group 2, a high-speed unloading valve 3, a pressure reducing valve 4 and an oil filling valve 5, wherein the oil filling valve 5 and the high-speed unloading valve 3 are arranged on the oil path block 1, the reversing valve group 2 is vertically arranged at one end of the oil path block 1, and the pressure reducing valve 4 is arranged at the other end of the oil path block 1. In order to enable the reversing valve group 2, the high-speed unloading valve 3, the pressure reducing valve 4 and the oil filling valve 5 to be communicated, a plurality of oil passage ways are formed in the oil passage block 1, a die casting machine hydraulic oil passage way or an external hydraulic station is used for supplying oil, hydraulic oil is conveyed into the oil passage block 1, the hydraulic oil enters the oil filling valve 5, the pressure reducing valve 4, the reversing valve group 2 and the high-speed unloading valve 3 through the plurality of oil passage ways until the hydraulic oil is conveyed into die casting machine equipment, the opening and closing actions of a die hydraulic vacuum valve can be rapidly realized, after die casting machine equipment is clamped in place, the hydraulic vacuum valve of the die is opened through the reversing valve 2 of the die casting machine, and when a shooting rod of the die casting machine equipment is shot to a set position, the die casting machine can be guaranteed to be closed within 20ms through the reversing valve 2 and the high-speed unloading valve 3.
Further, in some embodiments of the present invention, an accumulator 6 is further installed on the pressure reducing valve 4, and a pressure sensor 60 is installed on one side of the pressure reducing valve 4. When the pressure sensor 60 detects that the pressure value of the accumulator 6 is too low, the oil charge valve 5 is started so that the external hydraulic oil is supplied to the accumulator 6 through the oil path and the pressure reducing valve 4, so as to ensure that the hydraulic oil pressure of the whole control device main body 100 is in a normal state.
Still further, in some embodiments of the present invention, there is provided a specific structure of the above-mentioned accumulator 6, where the accumulator 6 is configured as a diaphragm accumulator, and the diaphragm accumulator includes a pressure tank 61, an inner flexible diaphragm 62, and the bottom of the pressure tank 61 is connected to the pressure reducing valve 4 through an oil path joint 63, the inner flexible diaphragm 62 is installed in the pressure tank 61, an inflation screw adjusting screw 64 is installed at the top of the pressure tank 61, and a concave pressure cap 65 is provided at the bottom of the inner flexible diaphragm 62. Through the design of the structure, the energy accumulator 6 is used as an energy storage component, absorbs pressure impact and stores energy, and can assist the power source to compensate pressure.
Further, in some embodiments of the present invention, a plurality of oil passages are formed in the oil passage block 1, where the plurality of oil passages may include a first passage 11, a second passage 12, a third passage 13, a fourth passage 14, a fifth passage 15, a sixth passage 16, a seventh passage 17, and an eighth passage 18, where the first passage 11 is used for communicating with the main oil inlet hole 101 and the oil filling valve 5, the second passage 12 is used for communicating with the oil filling valve 5 and the pressure reducing valve 4, the third passage 13 is used for communicating with the pressure reducing valve 4 and the reversing valve 2, the fourth passage 14 is used for communicating with the reversing valve 2 and the device, the fifth passage 15 is used for communicating with the device and the reversing valve 2, the sixth passage 16 is used for communicating with the reversing valve 2 and the main oil return 102, the seventh passage 17 is used for communicating with the reversing valve 2 and the high speed unloading valve 3, and the eighth passage 18 is used for communicating with the high speed unloading valve 3 and the main oil return 102.
As shown in fig. 5 to 16, further, through the design of the plurality of oil passages, the invention also provides a control method of a hydraulic vacuum valve of a die casting machine, which comprises the following steps:
step one, the oil charge valve 5 receives an opening command sent by a controller (not shown) and is opened, hydraulic oil enters the first channel 11 through the main oil inlet hole 101, and enters the oil charge valve 5 through the first channel 11;
Step two, the pressure reducing valve 4 receives an opening instruction sent by the controller and is opened, hydraulic oil enters the second channel 12 after passing through the oil filling valve 5, and enters the pressure reducing valve 4 through the second channel 12;
Step three, the reversing valve group 2 receives an opening instruction sent by the controller and is opened, and hydraulic oil enters the reversing valve group 2 after entering a third channel 13 through the pressure reducing valve 4;
step four, hydraulic oil enters the equipment through the fourth channel 14 after coming out from the reversing valve group 2;
step five, the reversing valve group 2 receives the opening instruction sent by the controller again and is opened, and hydraulic oil in the equipment enters the oil way block 1 through the fifth channel 15 and enters the reversing valve group 2;
step six, the hydraulic oil enters the sixth channel 16 and the main oil return channel 102 after passing through the reversing valve group 2, and returns to the hydraulic tank.
Further, when the die casting machine is stopped, the hydraulic oil in the oil path block 1 does not need to enter the die casting machine, so that the hydraulic oil needs to flow back, so that the hydraulic oil in the oil path block 1 enters the seventh channel 17 through the reversing valve group 2, enters the high-speed unloading valve 3, enters the main oil return channel 102 through the eighth channel 18 after being unloaded by the high-speed unloading valve 3, and returns to the hydraulic tank.
The control device main body 100 consists of an oil filling valve 5, a reversing valve group 2, a high-speed unloading valve 3, a pressure reducing valve 4, an energy accumulator 6, a pressure sensor 60 and the like, adopts a die casting machine hydraulic oil way or an external hydraulic station to supply oil, can rapidly realize the opening and closing actions of a die hydraulic vacuum valve, when the pressure sensor 60 detects that the pressure value of the energy accumulator is too low, the oil filling valve 5 supplies oil to the energy accumulator, after the die casting machine is clamped in place, the hydraulic vacuum valve of the die is opened through the reversing valve group 2 of the control device, and when a shooting rod of the die casting machine is shot to a set position, the control device can ensure that the hydraulic vacuum valve of the die is closed within 20ms through the logic combination of the reversing valve group 2 and the high-speed unloading valve 3.
As shown in fig. 3, in some embodiments of the present invention, two oil holes, namely, an oil outlet 103 and an oil return 104, are formed on the back surface of the oil path block 1, and the oil outlet and the oil return are located at the ends of the fifth channel 15 and the seventh channel 17, respectively, so that the joints 19 are respectively installed on the oil outlet and the oil return, and the joints 19 are connected with the hydraulic delivery pipe 20 through the leakage-proof module 8, so that hydraulic oil can be smoothly delivered, and the joints 19 and the hydraulic delivery pipe 20 are firmly connected together through the leakage-proof module 8, so that not only falling between the joints 19 and the hydraulic delivery pipe 20 is prevented, but also the sealing performance of the joints 19 and the joints of the hydraulic delivery pipe 20 is improved, and environmental pollution caused by leakage of hydraulic oil is prevented.
Exemplary leakage prevention Module
As shown in fig. 14-16, further, in some embodiments of the present invention, a specific structure of the above-mentioned leakage-proof module 8 is provided, where the leakage-proof module 8 includes a first C-shaped leakage-proof jacket 81, a second C-shaped leakage-proof jacket 82, and a plurality of clamping mechanisms 83, specifically, in order to install the first C-shaped leakage-proof jacket 81 and the second C-shaped leakage-proof jacket 82 together, a plurality of first clamping convex seats 811 are provided on a side wall of the first C-shaped leakage-proof jacket 81, a plurality of second clamping convex seats 821 are provided on a side wall of the second C-shaped leakage-proof jacket 82, and the plurality of clamping mechanisms 83 are respectively inserted and fixed in the first clamping convex seats 811 and the second clamping convex seats 821, and the above-mentioned joint and hydraulic pipe are abutted in the first C-shaped leakage-proof jacket 81 and the second C-shaped leakage-proof jacket 82, and the above-mentioned clamping mechanisms 83, the first clamping convex seats 811 and the second clamping convex seats 821 are designed to be plural, so that the joint and the hydraulic pipe can be connected to a greater extent, and the whole fixed connection position can improve the connection position, and prevent the environmental pollution caused by the joint and the leakage of the hydraulic pipe; further, a first C-shaped outer jacket 812 is further installed on the first C-shaped anti-leakage jacket 81, and a second C-shaped outer jacket 822 is further installed on the second C-shaped anti-leakage jacket 82, wherein a plurality of lower boss blocks 814 are further installed on the first C-shaped outer jacket 812, and a plurality of upper concave bodies 824 are installed on the second C-shaped outer jacket 822, so that the first C-shaped outer jacket 812 and the second C-shaped outer jacket 822 are butted together, and the plurality of clamping mechanisms 83 can be shielded, thereby improving the aesthetic property of the anti-leakage module 8.
As shown in fig. 17, further, in some embodiments of the present invention, a specific structure of the above-mentioned clamping mechanism 83 is provided, where the clamping mechanism 83 includes a first clamping member 84 and a second clamping member 85, where the first clamping member 84 includes a screw body 841, a stop ring 842 and a stop spring 843, where an upper screw seat 844 is installed on the screw body 841, and the screw body 841 can be driven to rotate by the upper screw seat 844, and the second clamping member 85 includes an inner seat 851 and a lower seat 852, where the inner seat 851 is installed on the lower seat 852, and a plurality of pre-tightening springs 853 are installed between the inner seat 851 and the lower seat 852, and the screw body 841 passes through the first clamping boss 811 and extends to be connected with the lower seat 852, so as to implement fixation between the first C-shaped anti-leakage jacket 81 and the second C-shaped anti-leakage jacket 82;
In order to increase the firmness of the screw body 841, the first clamping piece 84 is prevented from generating reverse movement due to the thrust generated between the first C-shaped anti-leakage jacket 81 and the second C-shaped anti-leakage jacket 82 by the reciprocating pressurization of the hydraulic oil, so that the screw body 841 is further provided with a stop ring 842 and a stop spring 843, specifically, the stop ring 842 and the stop spring 843 are sleeved on the screw body 841 and positioned below the upper screw seat 844, the stop spring 843 is positioned in the upper clamping groove 813 of the first clamping convex seat 811 and abuts against the stop ring 842, the stop ring 842 abuts against the lower end of the upper screw seat 844, a plurality of first stop thorns 845 are correspondingly arranged at the lower end of the upper screw seat 844, a plurality of second stop thorns 846 are correspondingly arranged on the stop ring 842, and the slope surfaces of the first stop thorns 845 are correspondingly connected with the slope surfaces of the second stop thorns 846, so that when the upper screw seat 844 is rotated, on one hand, the upper screw seat 844 is driven to synchronously rotate, the first stop ring 841 drives the lower screw body 841 to rotate, the first stop thorns 846 rotate correspondingly to the second thorns 846, and the second thorns 846 can only rotate reversely, and the first stop thorns 846 rotate correspondingly to the second thorns 846, and the first stop the first thorns 846 rotate reversely, and the second thorns 846 correspondingly stop the first lead screw 846 to rotate correspondingly, and the second thorns 846 to rotate correspondingly to the second stop the first thorns 846, and move.
As shown in fig. 18-23, further, in some embodiments of the present invention, the specific structures of the inner housing 851 and the lower clamping seat 852 are provided, where a plurality of concave grooves 854 are formed on the inner housing 851, correspondingly, a plurality of outer fin plates 855 are mounted on the lower clamping seat 852, the outer fin plates 855 can be butt-jointed into side notches of the concave grooves 854, and the two corresponding side notches correspond to each other, further, a sliding clamping block 856 is mounted between two adjacent outer fin plates 855, correspondingly, the outer fin plates 855 have a special-shaped hole 857, and the sideslip rod 858 of the sliding clamping block 856 is penetrated in the special-shaped hole 857, and it is understood that the special-shaped hole 857 has a vertical hole 8571 and a side inclined hole 8572, and the sideslip rod 858 can reciprocally slide between the vertical hole 8571 and the side inclined hole 8572, correspondingly, and a side sliding groove 859 is formed on the inner wall of the sliding clamping block 856, so that the spiral lines on the sideslip body 841 can slide along the groove 859, and further enable the whole sliding block 856 to move between the second screw clamping body 85 and the second screw clamping body 85.
Further, the pre-tightening springs 853 are installed in the inner groove 860 between two adjacent concave grooves 854, and the plurality of pre-tightening springs 853 can provide internal supporting force to the inner seat 851, so as to prevent circumferential play between the inner seat 851 and the lower clamp 852. Meanwhile, a plurality of inner fin plates 825 are installed in the second clamping boss 821, so that the inner fin plates 825 can block the outer fin plates 855 from rotating;
Further, the user can push the lower holder 852 upwards, so that the lower holder 852 moves upwards along the inner holder 851, and the sliding clamping block 856 slides into the side inclined hole 8572 from the vertical hole 8571, so that the sliding clamping block 856 is separated from the screw body 841, and then pushes the screw body 841 upwards from the bottom of the screw body 841, and then the screw body 841 can be pulled out from the first clamping boss 811 and the second clamping boss 821, and further the clamping mechanism 83 is separated from the first C-shaped leakage-proof jacket 81 and the second C-shaped leakage-proof jacket 82, so that the subsequent maintenance and replacement of new components are facilitated.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (3)
1. A control device of a die-casting machine die hydraulic vacuum valve, characterized by comprising:
The control device comprises a control device main body (100), wherein the control device main body (100) comprises an oil circuit block (1), a reversing valve group (2), a high-speed unloading valve (3), a pressure reducing valve (4) and an oil filling valve (5), the oil filling valve (5) and the high-speed unloading valve (3) are arranged on the oil circuit block (1), the reversing valve group (2) is vertically arranged at one end of the oil circuit block (1), and the pressure reducing valve (4) is arranged at the other end of the oil circuit block (1);
Two oil holes are formed in the back face of the oil path block (1), joints are respectively arranged on the two oil holes, and the joints are connected with a hydraulic conveying pipe through a leakage-proof module (8);
The anti-leakage module (8) comprises a first C-shaped anti-leakage jacket (81), a second C-shaped anti-leakage jacket (82) and a plurality of clamping mechanisms (83), wherein a plurality of first clamping convex seats (811) are arranged on the side wall of the first C-shaped anti-leakage jacket (81), a plurality of second clamping convex seats (821) are arranged on the side wall of the second C-shaped anti-leakage jacket (82), the clamping mechanisms (83) are fixedly arranged in the first clamping convex seats (811) and the second clamping convex seats (821) in a penetrating manner, the joint and the hydraulic conveying pipe are in butt joint with the first C-shaped anti-leakage jacket (81) and the second C-shaped anti-leakage jacket (82), a first C-shaped outer jacket (812) is further arranged on the first C-shaped anti-leakage jacket (81), a second C-shaped outer jacket (822) is further arranged on the second C-shaped outer jacket (812) in butt joint with the second C-shaped outer jacket (822);
The clamping mechanism (83) comprises a first clamping piece (84) and a second clamping piece (85), the first clamping piece (84) comprises a screw body (841), a stop ring (842) and a stop spring (843), an upper screw seat (844) is arranged on the screw body (841), the stop ring (842) and the stop spring (843) are sleeved on the screw body (841) and are located below the upper screw seat (844), and the stop spring (843) is located in an upper clamping groove (813) of the first clamping convex seat (811) and abuts against the stop ring (842);
The second clamping piece (85) is arranged in a lower clamping groove (823) of the second clamping convex seat (821), the second clamping piece (85) comprises an inner seat body (851) and a lower clamping seat (852), the inner seat body (851) is arranged on the lower clamping seat (852), a plurality of pre-tightening springs (853) are arranged between the inner seat body (851) and the lower clamping seat (852), and the screw rod body (841) penetrates through the first clamping convex seat (811) and extends to be connected with the lower clamping seat (852);
The novel screw rod type sliding seat is characterized in that a plurality of concave grooves (854) are formed in the inner seat body (851), a plurality of outer fin plates (855) are arranged on the lower clamping seat (852), the outer fin plates (855) correspond to side gaps of the concave grooves (854), sliding clamping blocks (856) are arranged between two adjacent outer fin plates (855), special-shaped holes (857) are formed in the outer fin plates (855), sideslip rods (858) of the sliding clamping blocks (856) are arranged in the special-shaped holes (857) in a penetrating mode, sideslip grooves (859) corresponding to the screw rod bodies (841) are formed in the inner walls of the sliding clamping blocks (856), and pre-tightening springs (853) are arranged in inner grooves (860) between two adjacent concave grooves (854);
The lower end of the upper screw rod seat (844) is provided with a plurality of first stop thorns (845), the upper end of the stop ring (842) is provided with a plurality of second stop thorns (846), and the slope surface of the first stop thorns (845) is in sliding connection with the slope surface of the second stop thorns (846).
2. The control device of a die casting machine die hydraulic vacuum valve according to claim 1, characterized in that an accumulator (6) is arranged on the pressure reducing valve (4), and a pressure sensor (60) is arranged on one side of the pressure reducing valve (4).
3. The control device of a die casting machine die hydraulic vacuum valve according to claim 2, characterized in that the energy accumulator (6) comprises a pressure tank body (61) and an inner flexible diaphragm body (62), the bottom of the pressure tank body (61) is connected to the pressure reducing valve (4) through an oil way joint (63), the inner flexible diaphragm body (62) is arranged in the pressure tank body (61), an inflation screw adjusting screw (64) is arranged at the top of the pressure tank body (61), and an inner concave pressure cap (65) is arranged at the bottom of the inner flexible diaphragm body (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311597341.7A CN117605726B (en) | 2023-11-28 | 2023-11-28 | Control device and control method for die-casting machine die hydraulic vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311597341.7A CN117605726B (en) | 2023-11-28 | 2023-11-28 | Control device and control method for die-casting machine die hydraulic vacuum valve |
Publications (2)
| Publication Number | Publication Date |
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| CN117605726A CN117605726A (en) | 2024-02-27 |
| CN117605726B true CN117605726B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311597341.7A Active CN117605726B (en) | 2023-11-28 | 2023-11-28 | Control device and control method for die-casting machine die hydraulic vacuum valve |
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| CN (1) | CN117605726B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4519572A (en) * | 1982-08-18 | 1985-05-28 | Vickers, Incorporated | Valve device, especially for die casting machines |
| CN102615263A (en) * | 2012-03-27 | 2012-08-01 | 蚌埠市华艺压铸机制造有限责任公司 | Squeeze injection and pressure boost mechanism of die casting machine |
| CN106351886A (en) * | 2015-07-15 | 2017-01-25 | 邵阳明华液压阀门有限公司 | Specialized control valve group with double hydraulic system for elevator brake hydraulic station |
| CN208057587U (en) * | 2017-12-19 | 2018-11-06 | 佛山市顺德区威玮机械有限公司 | A kind of die casting machine hydraulic system |
| CN109940151A (en) * | 2019-04-04 | 2019-06-28 | 广东鸿图科技股份有限公司 | A kind of die casting multichannel high vacuum valve motion control device and control method |
-
2023
- 2023-11-28 CN CN202311597341.7A patent/CN117605726B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4519572A (en) * | 1982-08-18 | 1985-05-28 | Vickers, Incorporated | Valve device, especially for die casting machines |
| CN102615263A (en) * | 2012-03-27 | 2012-08-01 | 蚌埠市华艺压铸机制造有限责任公司 | Squeeze injection and pressure boost mechanism of die casting machine |
| CN106351886A (en) * | 2015-07-15 | 2017-01-25 | 邵阳明华液压阀门有限公司 | Specialized control valve group with double hydraulic system for elevator brake hydraulic station |
| CN208057587U (en) * | 2017-12-19 | 2018-11-06 | 佛山市顺德区威玮机械有限公司 | A kind of die casting machine hydraulic system |
| CN109940151A (en) * | 2019-04-04 | 2019-06-28 | 广东鸿图科技股份有限公司 | A kind of die casting multichannel high vacuum valve motion control device and control method |
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| Publication number | Publication date |
|---|---|
| CN117605726A (en) | 2024-02-27 |
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