CN202021333U - Injection mechanism of die casting machine - Google Patents
Injection mechanism of die casting machine Download PDFInfo
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- CN202021333U CN202021333U CN2011200453323U CN201120045332U CN202021333U CN 202021333 U CN202021333 U CN 202021333U CN 2011200453323 U CN2011200453323 U CN 2011200453323U CN 201120045332 U CN201120045332 U CN 201120045332U CN 202021333 U CN202021333 U CN 202021333U
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Abstract
The utility model relates to an injection mechanism of a die casting machine solving the technical problems that in the existing injection mechanism, the volume of a pressure-boosting oil cavity is large, the pressure-boosting oil consumption is large, the pressure-boosting and pressure-building time is long, the response is slow so as not to be beneficial to quality control and improvement of the die casting machine. The utility model provides the injection mechanism of the die casting machine, in which a pressure-boosting oil cavity is small, the pressure-building time is short and the response is fast. The injection mechanism comprises an injection hydraulic cylinder component, an injection chamber punch component, a total-pressure energy accumulator component, a back-pressure energy accumulator component as well as a plurality of oil path boards and hydraulic valves; the injection hydraulic cylinder component consists of an ejection cylinder component and a pressure-boosting cylinder component; the pressure-boosting cylinder component consists of a pressure-boosting oil cylinder and a pressure-boosting piston rod; the pressure-boosting piston rod consists of a piston-rod right rod, a middle-convex middle-step rod and a piston-rod left rod; the pressure-boosting piston rod is internally provided with an oil through hole communicating the left end surface and the right end surface of the piton rod; and the pressure-boosting oil cavity is enclosed by a right-step end surface of the middle-step rod, a rod surface of the piston-rod right rod, a cylinder hole of the pressure-boosting cylinder and a left end surface of a left isolating lining block, so that the volume of the pressure-boosting oil cavity is smaller than that of the prior art.
Description
Technical field
The utility model relates to field of die casting machines, especially relates to a kind of die casting machine injection mechanism.
Background technology
The injection unit of die casting machine mainly is made up of injection hydraulic pressure cylinder assembly, injection chamber punch-head assembly, injection accumulator assembly and supercharging accumulator assembly.In die casting machine when work,, raw material is pressed into through the injection program and needs to start the supercharging program behind the die casting and the raw material in the mould is carried out supercharging and keep the regular hour.The tradition injection mechanism, the supercharging oil pocket is between the oil pressure plate of charged piston bar tail end end face in the pressurized cylinder and correspondence, and supercharging oil pocket volume is big, the supercharging oil mass of the required filling of supercharging is big, therefore it is long that the pressure time is built in supercharging, and the supercharging low-response is unfavorable for the control and the raising of die casting die casting quality.
Summary of the invention
The utility model mainly is that the supercharging oil pocket volume that solves in the existing in prior technology pressurized cylinder is big, the supercharging oil mass of the required filling of supercharging is big, therefore it is long that the pressure time is built in supercharging, the supercharging response time is slow, is unfavorable for the control of die casting die casting quality and the technical problem of raising, provides a kind of supercharging oil pocket volume little, the supercharging oil mass of the required filling of supercharging is little, therefore it is short that the pressure time is built in supercharging, and the supercharging response is fast, the die casting machine injection mechanism that die casting die casting quality is high.
The used technical scheme of the utility model is: a kind of die casting machine injection mechanism comprises injection hydraulic pressure cylinder assembly, injection chamber punch-head assembly, stagnation pressure accumulator assembly and back pressure accumulator assembly, oil circuit board group and hydraulic valve bank; Described hydraulic valve bank comprises injection control valve, supercharger control valve, back pressure control logic valve; Described oil circuit board group comprises puts the first injection oil circuit board that described injection control valve is housed, puts the second injection oil circuit board that described supercharger control valve and back pressure control logic valve are housed; Described injection hydraulic pressure cylinder assembly is formed by penetrating cylinder component and pressurized cylinder assembly, wherein penetrates cylinder component by penetrating oil cylinder and penetrating piston rod and form, and the pressurized cylinder assembly is made up of pressurizing cylinder and charged piston bar.Especially, described pressurized cylinder assembly is arranged between the right-hand member of the left end of described ejaculation cylinder component and the described first injection oil circuit board; Described charged piston bar is that middle the stepped stem of convex shape constitutes with axostylus axostyle for three sections by the right bar of stopper rod, stopper rod left side bar and shaft section, and the external diameter of the right bar of stopper rod is provided with the oily access opening of injection of its left and right sides end face of conducting less than the external diameter of stopper rod left side bar in the charged piston bar; The type end face and the described pressurizing cylinder reciprocating dynamic seal of stepped stem in the middle of described; Be installed with the right grommet piece of isolating between described pressurized cylinder right-hand member end and the described first injection oil circuit board left end, right endoporus and the right bar pole face of described stopper rod reciprocating dynamic seal of isolating the grommet piece; Right right ladder end face and pressurizing cylinder respective cylinder face of isolating the left end end face of grommet piece, middle stepped stem constitutes the supercharging oil pocket B that is communicated with supercharger control valve; Described pressurized cylinder left end end and and penetrate and to be installed with a left side between the oil cylinder right-hand member and to isolate the grommet piece, a left side isolates the endoporus and the left bar pole face of described stopper rod reciprocating dynamic seal of grommet piece; Left ladder end face and pressurizing cylinder respective cylinder face that a left side isolates the right-hand member end face of grommet piece, middle stepped stem constitute the back pressure oil pocket C that is communicated with back pressure control logic valve; The respective cylinder face of the right-hand member end face of charged piston bar, ejaculation piston rod right-hand member and ejaculation oil cylinder constitutes injection oil pocket A.
During injection, injection oil enters the injection oil pocket A that penetrates the piston rod right-hand member through the oil of the injection in charged piston bar access opening, because the external diameter of the right bar of stopper rod is less than the external diameter of stopper rod left side bar, charged piston bar right-hand member compression area is greater than the left end compression area, the charged piston bar is subjected to the effect of oil pressure to be in rightmost position all the time before the supercharging job initiation, and the small end face of the right ladder end face of middle stepped stem is close together with the right grommet piece left side that isolates.The utility model, injection oil access opening by being provided with its left and right sides end face of conducting in the bar, the syllogic charged piston bar structure of stepped stem in the middle of the band convex shape, supercharging oil pocket B is arranged between piston rod pole face and the pressurized cylinder cylinder hole face, therefore the diameter of stepped stem step surface and the difference of pressurized cylinder internal diameter can be provided with very for a short time in the middle of following convex shape of the condition of the rigidity of guaranteeing the charged piston bar and intensity, thereby the startup volume of supercharging oil pocket B can be done little more much than the supercharging oil pocket startup volume of prior art, thereby during the supercharging job initiation in the supercharging oil pocket B supercharging oil mass of required filling little, therefore the utlity model has supercharging and build pressure time weak point, the characteristics that the supercharging response is fast.
As preferably, described injection oil access opening is the stairstepping injection oil access opening of aperture, left hole greater than aperture, right hole, the Zuo Kongli of stairstepping injection oil access opening is set with check (non-return) valve, and described check (non-return) valve is made up of the check (non-return) valve valve core spring seat of check (non-return) valve spool, check (non-return) valve valve body, check (non-return) valve valve core spring and band oil through; After being provided with the right hole that right-hand member is fixed on the first injection oil circuit board, left end passes stairstepping injection oil access opening between the check (non-return) valve and the first injection oil circuit board, stretch into the check (non-return) valve spool gag lever post of check (non-return) valve valve body right part oil through.This preferred version, set check (non-return) valve, the distance that the charged piston bar only need be moved to the left about 5mm after the supercharging job initiation is back with regard to quick lock, help saving supercharging compression fuel consumption and improve voltage built-up rate, can guarantee simultaneously that all valves of injection oil circuit are all isolated with injection oil pocket A when supercharging, thereby avoided each valve of injection oil circuit to be subjected to impacting with high pressure, helped improving the reliability and the service life of hydraulic system, reduced the working service cost of die casting machine; Check (non-return) valve spool gag lever post be provided with that purpose is to guarantee not start in supercharging, check (non-return) valve was in opening when the charged piston bar was subjected to the effect of oil pressure to be in rightmost position, thereby helping the slow shot operation normally starts, and the oil return that guarantees the hydraulic oil in injection oil pocket A when penetrating piston rod after a die casting operation finishes retreats is smooth and easy reliable, therefore helps improving the service behaviour of injection mechanism.
As preferably, the left end in the left hole of described stairstepping injection oil access opening is provided with one section internal thread, and described check (non-return) valve valve core spring seat is provided with the adaptive external screw thread of the set internal thread of left hole left end with stairstepping injection oil access opening; Be provided with between the hole shoulder of the left hole right-hand member of described check (non-return) valve valve body right-hand member and described stairstepping injection oil access opening check (non-return) valve valve body abutment sleeve, and central authorities be provided with the gag lever post support board of the band oil through of check (non-return) valve spool gag lever post fixed via, the fixed via of the check (non-return) valve spool gag lever post of described gag lever post support board central authorities is passed and be supported in the left end end of described check (non-return) valve spool gag lever post.Earlier gag lever post support board, check (non-return) valve valve body abutment sleeve and check (non-return) valve valve body are put in the left hole that is contained in stairstepping injection oil access opening in turn during installation, and then the check (non-return) valve spool put install in the check (non-return) valve valve body, refill the check (non-return) valve valve core spring, screw check (non-return) valve valve core spring seat at last promptly finish the fixed installation of check (non-return) valve in the left hole of stairstepping injection oil access opening together until the hole shoulder of the left hole right-hand member of the right side of gag lever post support board and stairstepping injection oil access opening tightly is fixed.This preferred version, the mount fixing structure of check (non-return) valve is simple and reliable, and check (non-return) valve spool gag lever post functional reliability is good.
As preferably, to put on the described second injection oil circuit board Safety control valve is housed, the main oil-in of described Safety control valve is communicated with described supercharging oil pocket B, and the main oil-out of described Safety control valve is communicated with the system fuel tank.This preferred version, pressure release in time when mechanical disorder causes supercharging oil pocket B oil pressure to raise unusually, thus guarantee the security and the reliability of boost-up circuit.
As preferably, described injection control valve is a kind of inserted valve, its spool is by being provided with boss in the middle of the two sections, three sections core bodys that the two sections external diameter equates constitute, and be provided with the through hole of conducting spool upper and lower end face in the spool, reciprocating dynamic seal cooperation between the corresponding inner hole wall on the side of boss and the valve body in the middle of the spool, be provided with between the hypomere core body lateral surface of spool and the corresponding inner hole wall of valve body with valve gap on set open that valve guide oil duct is communicated with open the valve oil chamber, be provided with between the epimere core body lateral surface of spool and the corresponding inwall of valve body with valve gap on set close that valve guide oil duct is communicated with close the valve oil chamber.This preferred version, the keying of injection control valve be by open and close valve guide oil pressure-controlled, and open the valve oil chamber and close valve oil chamber volume very little, and the pilot pressure oil oil mass that need be packed into during open and close valve is little; Again owing to be provided with the through hole of conducting spool upper and lower end face in the spool and spool two sections core outside diameter equates, the change of spool working connection oil pressure can not cause moving of spool position, so the keying response time of injection control valve is fast, valve port opens and closes good stability, injection job stabilization and good reliability.
In sum, the beneficial effect that the utility model brings is: during injection mechanism work, it is short that the pressure time is built in supercharging operation supercharging, and the supercharging response is fast, and injection mechanism job stability and good reliability, helps the control and the raising of die casting die casting quality.
The utlity model has simple and reasonablely, the characteristics that the working service cost is low make to be installed easily.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the structural representation of charged piston bar embodiment illustrated in fig. 1;
Fig. 3 is a fundamental diagram embodiment illustrated in fig. 1;
Fig. 4 is charged piston bar and a check (non-return) valve shift in position schematic diagram after the supercharging job initiation embodiment illustrated in fig. 1.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model is mainly by the injection hydraulic pressure cylinder assembly, stagnation pressure accumulator assembly 17, back pressure accumulator assembly 16, the not shown injection chamber punch-head assembly that goes out, the hydraulic valve bank that comprises injection control valve 3, supercharger control valve 4, back pressure control logic valve 5 and Safety control valve 6 comprises the oil circuit board group of the first injection oil circuit board 7 and the second injection oil circuit board 8, and composition such as some obturators.Wherein supercharger control valve 4, back pressure control logic valve 5 and Safety control valve 6 are put and are contained on the second injection oil circuit board 8, and injection control valve 3 is put and is contained on the first injection oil circuit board 7, and is the inserted valve structure.Described injection hydraulic pressure cylinder assembly is formed by penetrating cylinder component 1 and pressurized cylinder assembly 2, wherein penetrate cylinder component 1 by penetrating oil cylinder 1.1 and penetrate that piston rod 1.2 is formed, pressurized cylinder assembly 2 is made up of pressurizing cylinder 2.1 and charged piston bar 2.2, and described pressurized cylinder assembly 2 is arranged between the right-hand member of the left end of described ejaculation cylinder component 1 and the described first injection oil circuit board 7; Described charged piston bar 2.2 is that the middle stepped stem 2.2.2 of convex shape constitutes with axostylus axostyle for three sections by the right bar 2.2.1 of stopper rod, stopper rod left side bar 2.2.3 and shaft section, the external diameter of the right bar 2.2.1 of stopper rod is provided with the injection oil access opening 2.2.4 of its left and right sides end face of conducting less than the external diameter 10mm of stopper rod left side bar 2.2.3 in the charged piston bar 2.2; Stepped stem 2.2.2 type end face and described pressurizing cylinder 2.1 reciprocating dynamic seals in the middle of described; Described pressurized cylinder 2.1 right-hand member ends and and the described first injection oil circuit board, 7 left ends between be installed with the right grommet piece 11 of isolating, right right ladder end face and pressurizing cylinder 2.1 respective cylinder faces of isolating the left end end face of grommet piece 11, middle stepped stem 2.2.2 constitute the supercharging oil pocket B that is communicated with supercharger control valve 4; Described pressurized cylinder 2.1 left end ends and and penetrate and to be installed with a left side between oil cylinder 1.1 right-hand members and to isolate grommet piece 10, a left side isolates the endoporus and the left bar 2.2.3 of described stopper rod pole face reciprocating dynamic seal of grommet piece 10; Left ladder end face and pressurizing cylinder 2.1 respective cylinder faces that a left side isolates the right-hand member end face of grommet piece 10, middle stepped stem 2.2.2 constitute the back pressure oil pocket C that is communicated with back pressure control logic valve 5; The respective cylinder face of the right-hand member end face of charged piston bar 2.2, ejaculation piston rod 1.2, right-hand member and ejaculation oil cylinder 1.1 constitutes injection oil pocket A; The main oil-in of Safety control valve 6 is communicated with and is communicated with described supercharging oil pocket B with the main oil-out of supercharger control valve 4 by the second injection oil circuit board, 8 corresponding oil ducts, and the main oil-out of Safety control valve 6 is communicated with the system fuel tank.As depicted in figs. 1 and 2, described injection oil access opening 2.2.4 is the stairstepping injection oil access opening of aperture, left hole greater than aperture, right hole, the left end in the left hole of stairstepping injection oil access opening 2.2.4 is provided with one section internal thread 2.2.6, the Zuo Kongli of stairstepping injection oil access opening 2.2.4 is set with check (non-return) valve 9, check (non-return) valve valve body abutment sleeve 14 and central authorities are provided with the gag lever post support board 15 of band oil through of the fixed via of check (non-return) valve spool gag lever post 13, described check (non-return) valve 9 is by check (non-return) valve spool 9.1, check (non-return) valve valve body 9.2, the check (non-return) valve valve core spring seat 9.4 of check (non-return) valve valve core spring 9.3 and band oil through is formed, and check (non-return) valve valve core spring seat 9.4 is provided with the adaptive external screw thread of left hole left end internal thread 2.2.6 with stairstepping injection oil access opening.Elder generation is gag lever post support board 15 during installation, check (non-return) valve valve body abutment sleeve 14 and check (non-return) valve valve body 9.2 are put in the left hole that is contained in stairstepping injection oil access opening 2.2.4 in turn, and then check (non-return) valve spool 9.1 put install to 9.2 li of check (non-return) valve valve bodies, refill check (non-return) valve valve core spring 9.3, screw check (non-return) valve valve core spring seat 9.4 at last promptly finish the fixed installation of check (non-return) valve 9 in the left hole of stairstepping injection oil access opening 2.2.4 together until the hole shoulder of the left hole right-hand member of the right side of gag lever post support board 15 and stairstepping injection oil access opening 2.2.4 tightly is fixed.In addition, between the check (non-return) valve 9 and the first injection oil circuit board 7, be provided with check (non-return) valve spool gag lever post 13, the right-hand member of check (non-return) valve spool gag lever post 13 and the first injection oil circuit board 7 are fixedly linked, the right Kong Houzai that the left end of check (non-return) valve spool gag lever post 13 passes injection oil access opening 2.2.4 passes, be supported in the check (non-return) valve spool gag lever post fixed via of described gag lever post support board 15 central authorities, the left end end face of check (non-return) valve spool gag lever post 13 stretches in the check (non-return) valve valve body 9.2 right part oil throughs guaranteeing and does not start in supercharging, check (non-return) valve was in opening when the charged piston bar was subjected to the effect of oil pressure to be in shown in Figure 1 rightmost position.As shown in Figure 1, injection control valve 3 is a kind of inserted valve, its spool 3.1 is by being provided with boss in the middle of the two sections, three sections core bodys that the two sections external diameter equates constitute, be provided with the through hole of conducting spool 3.1 upper and lower end faces in the spool 3.1, reciprocating dynamic seal cooperation between the corresponding inner hole wall on the side of boss and the valve body 3.2 in the middle of the spool 3.1, be provided with between the hypomere core body lateral surface of spool 3.1 and the corresponding inner hole wall of valve body 3.2 with valve gap 3.3 on set open that valve guide oil duct 3.3.1 is communicated with open the valve oil chamber, be provided with between the epimere core body lateral surface of spool 3.1 and the corresponding inwall of valve body 3.2 with valve gap 3.3 on set close that valve guide oil duct 3.3.2 is communicated with close the valve oil chamber.This preferred version, the keying of injection control valve 3 be by open and close valve guide oil pressure-controlled, and open the valve oil chamber and close valve oil chamber volume very little, and the pilot pressure oil oil mass that need be packed into during open and close valve is little; Again owing to be provided with the through hole of conducting spool 3.1 upper and lower end faces in the spool 3.1 and spool two sections core outside diameter equates, the change of spool working connection oil pressure can not cause moving of spool position, so the keying response time of injection control valve 3 is fast, valve port opens and closes good stability, injection job stabilization and good reliability.
The utility model, injection oil access opening by being provided with its left and right sides end face of conducting in the bar, the syllogic charged piston bar structure of stepped stem in the middle of the band convex shape, supercharging oil pocket B is arranged between piston rod pole face and the pressurized cylinder cylinder hole face, injection oil enters the injection oil pocket A that penetrates the piston rod right-hand member through the oil of the injection in the charged piston bar access opening during injection, therefore the diameter of stepped stem step surface and the difference of pressurized cylinder internal diameter can be provided with very for a short time in the middle of following convex shape of the condition of the rigidity of guaranteeing the charged piston bar and intensity, thereby the startup volume of supercharging oil pocket B can be done little more much than the supercharging oil pocket startup volume of prior art, thereby during the supercharging job initiation in the supercharging oil pocket B supercharging oil mass of required filling little, therefore the utlity model has supercharging and build pressure time weak point, the characteristics that the supercharging response is fast.
Take turns in the die casting operation one, as shown in Figure 1, because the external diameter of the right bar of stopper rod is less than the external diameter of stopper rod left side bar, charged piston bar right-hand member compression area is greater than the left end compression area, the charged piston bar is subjected to the effect of oil pressure to be in rightmost position all the time before the supercharging job initiation, the small end face 2.2.5 of the right ladder end face of middle stepped stem is close together with the right grommet piece left side that isolates, being provided with of check (non-return) valve spool gag lever post can be guaranteed not start in supercharging, check (non-return) valve was in opening when the charged piston bar was subjected to the effect of oil pressure to be in shown in Figure 1 rightmost position, thereby helping the slow shot operation normally starts, and the oil return that guarantees the hydraulic oil in injection oil pocket A when penetrating piston rod after a die casting operation finishes retreats is smooth and easy reliable, therefore helps improving the service behaviour of injection mechanism.As shown in Figure 3, during the injection operation, the injection control valve is opened, and injection fluid enters the injection oil pocket A that penetrates the piston rod right-hand member through the oil of the injection in charged piston bar access opening, promotes to penetrate piston rod and moves to left; The injection operation finishes, and the pressurization control opening of valves promotes the charged piston bar and moves to left, and the change in location signal of check (non-return) valve spool, charged piston bar and ejaculation piston rod at this moment as shown in Figure 2; When the charged piston bar moves to left under the effect of supercharging fluid, the oil liquid pressure of injection oil pocket A increases, thereby promoting the check (non-return) valve spool moves to right, the check (non-return) valve quick closedown, thereby help saving supercharging compression fuel consumption and further improve voltage built-up rate, and make all valves of injection oil circuit when supercharging, all completely cut off, can avoid each valve of injection oil circuit to be subjected to impacting with high pressure thus with injection oil pocket A, thus the reliability and the service life of improving hydraulic system, the working service cost of reduction die casting machine.
So the beneficial effect that the utility model brings is: during injection mechanism work, it is short that the pressure time is built in supercharging operation supercharging, and the supercharging response is fast, and injection mechanism job stability and good reliability, helps the control and the raising of die casting die casting quality.The utlity model has simple and reasonablely, the characteristics that the working service cost is low make to be installed easily.
Claims (6)
1. a die casting machine injection mechanism comprises injection hydraulic pressure cylinder assembly, injection chamber punch-head assembly, stagnation pressure accumulator assembly (17) and back pressure accumulator assembly (16), oil circuit board group and hydraulic valve bank; Described hydraulic valve bank comprises injection control valve (3), supercharger control valve (4), back pressure control logic valve (5); Described oil circuit board group comprises puts the first injection oil circuit board (7) that described injection control valve (3) is housed, puts the second injection oil circuit board (8) that described supercharger control valve (4) and back pressure control logic valve (5) are housed; Described injection hydraulic pressure cylinder assembly is formed by penetrating cylinder component (1) and pressurized cylinder assembly (2), oil cylinder (1.1) and ejaculation piston rod (1.2) are formed by penetrating, pressurized cylinder assembly (2) is made up of pressurizing cylinder (2.1) and charged piston bar (2.2) wherein to penetrate cylinder component (1), it is characterized in that: described pressurized cylinder assembly (2) is arranged between the right-hand member of the left end of described ejaculation cylinder component (1) and the described first injection oil circuit board (7); Described charged piston bar (2.2) is that three sections of the middle stepped stem (2.2.2) of convex shape constitute with axostylus axostyle by the right bar (2.2.1) of stopper rod, stopper rod left side bar (2.2.3) and shaft section, the external diameter of the right bar of stopper rod (2.2.1) is provided with the injection oil access opening (2.2.4) of its left and right sides end face of conducting less than the external diameter of stopper rod left side bar (2.2.3) in the charged piston bar (2.2); The type end face and described pressurizing cylinder (2.1) reciprocating dynamic seal of stepped stem (2.2.2) in the middle of described; Described pressurized cylinder (2.1) right-hand member end and and described first injection oil circuit board (7) left end between be installed with the right grommet piece (11) of isolating, right endoporus and described stopper rod right side bar (2.2.1) pole face reciprocating dynamic seal of isolating grommet piece (11); The right left end end face of grommet piece (11), the right ladder end face of middle stepped stem (2.2.2) and the supercharging oil pocket B that pressurizing cylinder (2.1) respective cylinder face formation is communicated with supercharger control valve (4) of isolating; Described pressurized cylinder (2.1) left end end and and penetrate and to be installed with a left side between oil cylinder (1.1) right-hand member and to isolate grommet piece (10), a left side isolates the endoporus and left bar (2.2.3) pole face of described stopper rod reciprocating dynamic seal of grommet piece (10); A left side isolates the right-hand member end face of grommet piece (10), the left ladder end face and pressurizing cylinder (2.1) the respective cylinder face of middle stepped stem (2.2.2) constitutes the back pressure oil pocket C that is communicated with back pressure control logic valve (5); The respective cylinder face of the right-hand member end face of charged piston bar (2.2), ejaculation piston rod (1.2), right-hand member and ejaculation oil cylinder (1.1) constitutes injection oil pocket A.
2. die casting machine injection according to claim 1 mechanism, it is characterized in that: described injection oil access opening (2.2.4) is the stairstepping injection oil access opening of aperture, left hole greater than aperture, right hole, the Zuo Kongli of stairstepping injection oil access opening is set with check (non-return) valve (9), and described check (non-return) valve (9) is made up of the check (non-return) valve valve core spring seat (9.4) of check (non-return) valve spool (9.1), check (non-return) valve valve body (9.2), check (non-return) valve valve core spring (9.3) and band oil through; Be provided with the check (non-return) valve spool gag lever post (13) that stretches into check (non-return) valve valve body (9.2) right part oil through after right-hand member is fixed on the right hole that the first injection oil circuit board (7) is gone up, left end passes stairstepping injection oil access opening (2.2.4) between the check (non-return) valve (9) and the first injection oil circuit board (7).
3. die casting machine injection according to claim 2 mechanism, it is characterized in that: the left end in the left hole of described stairstepping injection oil access opening (2.2.4) is provided with one section internal thread (2.2.6), and described check (non-return) valve valve core spring seat (9.4) is provided with the adaptive external screw thread of left hole left end internal thread (2.2.6) with stairstepping injection oil access opening; Be provided with check (non-return) valve valve body abutment sleeve (14) between the hole shoulder of the left hole right-hand member of described check (non-return) valve valve body (9.2) right-hand member and described stairstepping injection oil access opening (2.2.4), reach the gag lever post support board (15) that central authorities are provided with the band oil through of check (non-return) valve spool gag lever post fixed via, the check (non-return) valve spool gag lever post fixed via of described gag lever post support board (15) central authorities is passed and be supported in the left end end of described check (non-return) valve spool gag lever post (13).
4. according to claim 1 or 2 or 3 described die casting machine injection mechanisms, it is characterized in that: put on the second injection oil circuit board (8) Safety control valve (6) is housed, the main oil-in of described Safety control valve (6) is communicated with described supercharging oil pocket B, and the main oil-out of described Safety control valve (6) is communicated with the system fuel tank.
5. according to claim 1 or 2 or 3 described die casting machine injection mechanisms, it is characterized in that: injection control valve (3) is a kind of inserted valve, its spool (3.1) is by being provided with boss in the middle of the two sections, three sections core bodys that the two sections external diameter equates constitute, be provided with the through hole of conducting spool (3.1) upper and lower end face in the spool (3.1), reciprocating dynamic seal cooperation between the corresponding inner hole wall is gone up with valve body (3.2) in the side of boss in the middle of the spool (3.1), be provided with between the corresponding inner hole wall of the hypomere core body lateral surface of spool (3.1) and valve body (3.2) with valve gap (3.3) go up set open that valve guide oil duct (3.3.1) is communicated with open the valve oil chamber, be provided with between the corresponding inwall of the epimere core body lateral surface of spool (3.1) and valve body (3.2) with valve gap (3.3) on set close that valve guide oil duct (3.3.2) is communicated with close the valve oil chamber.
6. according to claim 1 or 2 or 3 described die casting machine injection mechanisms, it is characterized in that: described injection control valve (3) is a kind of inserted valve, its spool (3.1) is by being provided with boss in the middle of the two sections, three sections core bodys that the two sections external diameter equates constitute, be provided with the through hole of conducting spool (3.1) upper and lower end face in the spool (3.1), reciprocating dynamic seal cooperation between the corresponding inner hole wall is gone up with valve body (3.2) in the side of boss in the middle of the spool (3.1), be provided with between the corresponding inner hole wall of the hypomere core body lateral surface of spool (3.1) and valve body (3.2) with valve gap (3.3) go up set open that valve guide oil duct (3.3.1) is communicated with open the valve oil chamber, be provided with between the corresponding inwall of the epimere core body lateral surface of spool (3.1) and valve body (3.2) with valve gap (3.3) on set close that valve guide oil duct (3.3.2) is communicated with close the valve oil chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200453323U CN202021333U (en) | 2011-02-23 | 2011-02-23 | Injection mechanism of die casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200453323U CN202021333U (en) | 2011-02-23 | 2011-02-23 | Injection mechanism of die casting machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102974800A (en) * | 2012-10-17 | 2013-03-20 | 南昌大学 | Injecting feeding device of extrusion casting machine |
| CN103264151A (en) * | 2013-05-06 | 2013-08-28 | 佛山市贝斯顿科技有限公司 | Bearing seat for injection tables of die-casting machines |
| CN103899818A (en) * | 2012-12-28 | 2014-07-02 | 宜兴市佳晨压铸机制造有限公司 | Novel injection structure |
| CN116060594A (en) * | 2023-03-02 | 2023-05-05 | 宁波力劲科技有限公司 | Pressurizing system of injection cylinder of large die casting machine |
-
2011
- 2011-02-23 CN CN2011200453323U patent/CN202021333U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102974800A (en) * | 2012-10-17 | 2013-03-20 | 南昌大学 | Injecting feeding device of extrusion casting machine |
| CN103899818A (en) * | 2012-12-28 | 2014-07-02 | 宜兴市佳晨压铸机制造有限公司 | Novel injection structure |
| CN103264151A (en) * | 2013-05-06 | 2013-08-28 | 佛山市贝斯顿科技有限公司 | Bearing seat for injection tables of die-casting machines |
| CN103264151B (en) * | 2013-05-06 | 2017-11-07 | 东莞市鸿程机械有限公司 | A kind of supporting seat of die casting machine platform |
| CN116060594A (en) * | 2023-03-02 | 2023-05-05 | 宁波力劲科技有限公司 | Pressurizing system of injection cylinder of large die casting machine |
| CN116060594B (en) * | 2023-03-02 | 2023-07-18 | 宁波力劲科技有限公司 | Pressurizing system of injection cylinder of large die casting machine |
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