TW202015832A - The nozzle device of metal die-casting machine can enhance atomization effect - Google Patents

Abstract

The utility model discloses a metal die-casting machine nozzle device capable of enhancing the atomization effect. The spraying device comprises a base, a spraying pipe unit and two spraying units, the base comprises two guide holes which are communicated from the top surface to the bottom surface; the spray pipe unit comprises a body installed on the base and a plurality of spray pipes connectedto the body. Wherein the body is provided with two grooves which are concavely arranged from the upper end surface; each groove extends in the first axial direction to form a long groove shape. The spray pipes extend out from the lower end surfaces respectively; the spraying units are provided with air conveying pipes communicated with the corresponding grooves and sprayers connected to the air conveying pipes, each sprayer is provided with a nozzle which intersects obliquely and is communicated with the corresponding air conveying hole, and the nozzles can selectively spray out water, releaseliquid or a mixture of the water and the release liquid. By means of the arrangement of the groove of the body and the spraying unit, a good atomization effect can be achieved, and the purpose of uniform spraying is achieved.

Description

Spray head device of metal die casting machine capable of enhancing atomization effect

The invention relates to a metal die-casting machine, in particular to a nozzle device of a metal die-casting machine capable of enhancing the atomization effect.

Referring to FIGS. 1 and 2, an existing nozzle device suitable for a small metal die-casting machine with a small product size includes a body 1, an upper cover plate 2 provided with a plurality of channels 201 and covering the body 1 above, A lower cover plate 3 installed with a plurality of atomizing tubes (not shown) and covered under the body 1 and a plurality of atomizers 4 installed on both sides of the body 1 for atomization. There are three groove chambers 101 arranged in parallel inside the body 1, and the groove chambers 101 on the two outer sides correspond to a male mold and a female mold of the metal die casting machine, respectively, through the upper cover plate 3 and the The channel provided in the lower cover plate 2 can lead the release agent to the two outer groove chambers 101 respectively, and an intermediate groove chamber 101 between the two outer groove chambers is used to communicate with the gas (great wind ).

In the design of such a spray head, the upper cover plate 2 is provided with a plurality of gas channels 201 and a release liquid channel 202, which is complicated in structure and high in manufacturing cost. Furthermore, the atomizer 4 itself can pass the release liquid (separate Add water to the mold agent), and use another gas to drive the mold release liquid for atomization. However, this design, because it is necessary to avoid spraying the mold release liquid, is not given back by the gas pressure of the gas channel 201 and cannot flow out ( Reflux), so the pressure value of the gas that is poured into the nozzle device cannot be set too large, so that the atomization effect is limited, plus it is a long groove chamber design, and the atomizer 4 is The opposite sides of each groove chamber 101 are installed, so the flow rate of the spray from each groove chamber 101 will be in the middle and many sides are low.

In addition, in the operation process, after the release liquid of the male and female molds is sprayed, the existing spray tubes corresponding to the groove chambers 101 on both sides will cause the release liquid remaining in the tube to rise with the nozzle. (Leave the male and female molds) and then drip out and accidentally contaminate the product, or when another release liquid spraying operation is carried out next time, the liquid release liquid will be sprayed onto the male and female. On the mold, it affects the uniformity of the spray on the male and female molds.

In addition, the work flow of the metal die casting machine is as follows: mold opening→product taking→spray blown chipping→spray water cooling→spray release liquid→spray stable release liquid→clamping die casting. In the two workflows of spraying air and stable release liquid, air blowing (high wind) is used to remove the remaining mold chips or stable release liquid on the male and female molds, and it is a spray tube connected to the middle groove. Therefore, it is necessary to connect a gas pipeline and a switch solenoid valve on the device. During the operation, the opening and closing time of the switch solenoid valve will be increased more.

The sprayer of the die-casting machine release agent disclosed in the Taiwan Patent Announcement No. 208843 is also provided with a complicated air channel structure, such as an air supply channel, a gas injection port, an overflow pipe, and a long hole, which is also very troublesome in manufacturing. Furthermore, the overflow pipe is provided with many overflow holes with extremely small pore diameters. Once the overflow holes are blocked, the release agent cannot be smoothly led out, and the spray effect of the release agent can be poor.

Therefore, the object of the present invention is to provide a metal die casting machine nozzle device that can produce a better atomization effect and produce a uniform spray and can enhance the atomization effect.

Therefore, the metal die-casting machine nozzle device capable of enhancing the atomization effect of the present invention includes a base, a nozzle unit and two spray units. The base includes a top surface, a bottom surface opposite to the top surface, and two guide holes communicating from the top surface to the bottom surface, the nozzle unit includes a body mounted on the bottom surface of the base, and most connections In the nozzle of the body, the body has an upper end surface opposite to the bottom surface, a lower end surface opposite to the upper end surface, and two grooves recessed by the upper end surface, each groove along a first axis The nozzles extend from the lower end surface and connect to the grooves respectively. The spray units are installed on the base and each has a recess connected to the corresponding recess. The gas pipe of the tank and a sprayer connected to the gas pipe, each gas pipe has a gas hole, the gas hole has an outlet end connected to the top surface, and an inlet end opposite to the outlet end , The sprayers are located between the outlet end and the air inlet end, and each sprayer has an obliquely intersecting nozzle communicating with the gas delivery hole, the nozzle can selectively eject water, release liquid, or A mix of the two.

The effect of the invention is that the spray units are installed between the outlet end and the air inlet end of each gas pipe, and when the pressure gas flows through the gas pipes, the atomizers can produce better atomization effect. And the groove of the body is in the shape of a long groove, which can achieve the purpose of uniform spraying.

Referring to FIGS. 3 and 4, an embodiment of a metal die casting machine nozzle device 100 capable of enhancing the atomization effect of the present invention, the metal die casting machine further includes a machine table 5 and a fixed mold base 6 fixed on the machine table 5 1. A movable mold base 7 slidably installed on the machine 5 and opposite to the fixed mold base 6, a female mold 601 mounted on the fixed mold base 6, and a male mold mounted on the movable mold base 7 701, and a cantilever unit 8 fixed on the top of the fixed mold base 2. Referring to FIGS. 5 and 6, the nozzle device 100 includes a fixed base 10 connected to the cantilever unit 8 and positioned relative to the metal die casting machine, a driving cylinder 20 mounted on the fixed base 10, and a The mounting base 30 above the fixing base 10, a plurality of guide rods 40 connected to the mounting base 30 and for slidably passing through the fixing base 10, a positioning pressure cylinder 50 mounted on the mounting base 30, and a connecting to the The equal guide rod 40 and the driving cylinder 20 are located at the base 60 below the fixing base 10, a nozzle unit 70 installed at the bottom of the base 60, and two spray units 80 installed at the base 60.

Referring to FIG. 15, the driving pressure cylinder 20 has a driving cylinder 21 fixed to the fixing base 10, and a driving piston rod 22 that is telescopic relative to the driving cylinder 21 and connected to the base 60.

The mounting base 30 has a plate 31 and two control valve groups 32 which can control the spray units 80 respectively. The base plate 31 has a through hole 311 through which the top end of the cylinder 21 of the driving pressure cylinder 20 can pass. , And can be restrained by the positioning pressure cylinder 50 to limit the position.

The guide rods 40 are connected between the seat plate 31 and the base 60, and slidably penetrate the fixing base 10.

The positioning pressure cylinder 50 has a positioning cylinder 51 and a positioning piston rod 52 that is telescopic relative to the positioning cylinder 51 and corresponds to the through hole 311.

The base 60 includes a top surface 61, a bottom surface 62 opposite to the top surface 61, two guide holes 63 communicating from the top surface 61 to the bottom surface 62, and two clamping seats 64 connected to the bottom surface 62, the The clamping seats 64 define an insertion groove 65 which is wide at the top and narrow at the bottom, and the guide holes 63 communicate with the insertion groove 65. The base 60 also has a center line L1 perpendicular to the bottom surface 62 and passing through the center point of the bottom surface 62.

With reference to FIGS. 7 and 8, the nozzle unit 70 includes a body 71 mounted on the bottom surface 62 of the base 60 and nested in the insertion groove 65, and most of the nozzles 72 connected to the body 71.

The body 71 has an upper end surface 711 opposite to the bottom surface 62, a lower end surface 712 opposite to the upper end surface 711, and two grooves 713 recessed by the upper end surface 711, each groove 713 along a vertical The first axis X of the center line L1 extends in a long groove shape. Each groove 713 has two circular buffer zones 714 corresponding to the guide holes 63, and a flow guide region 715 connected to the buffer zones 714 and extending along the first axis X. The inner diameter of the buffer zone 714 corresponding to a second axis Y perpendicular to the first axis X is greater than the width of the diversion region 715 corresponding to the second axis Y. Each groove 713 is composed of a groove bottom surface 716, a pair of groove side surfaces 717 intersectingly connected between the groove bottom surface 716 and the top surface 711 and extending along the first axis X, and a pair of intersectingly connecting to the groove A groove end surface 718 between the bottom surface 716 and the groove side surfaces 717 and spaced along the first axis X is jointly defined. The body 71 further has two pairs of grooves 713 respectively disposed along the second The flanges 719 spaced apart in the axial direction Y, the two flanges 719 in each groove 713 together define the diversion area 715, the flanges 719 are connected to the groove bottom surface 716 and the groove side surfaces 717, The equal flanges 719 each have an upper side surface 719' interposed between the top surface 711 and the groove bottom surface 716, and a plurality of drainage holes communicating from the upper side surface 719' to the lower end surface 712 and to the nozzles 72 respectively 719", the drainage holes 719" are arranged at intervals along the first axis X. In this embodiment, the diameter of the drainage holes 719" is about 2.4 mm.

9 and FIG. 10, the nozzles 72 respectively extend downward from the lower end surface 712, and are respectively connected to the grooves 713 through the drainage holes 719". The nozzles 72 each It has a needle nozzle 721 installed at the end. The nozzle unit 70 further includes a plurality of nozzle groups 720 arranged at intervals along the second axis Y. The number of nozzles 72 of each nozzle group 720 is a plural number. The greater the distance between the end of the nozzle 72 of the nozzle group 720 approaching the center line L1 and the lower end surface 712 of the base 71, the larger the diameter of the needle nozzle 721 installed at the end of the nozzle 72 , And the farther the distance between the end of the nozzle 72 of the nozzle group 720 and the lower end surface 712 of the base 71 that is farther from the center line L, the aperture of the needle nozzle 721 installed at the end of the nozzle 72 Furthermore, in this embodiment, the top section of the nozzles 72 connected to the base 71 is a straight tube, and the end section near the needle nozzles 721 is bent in a U shape.

With reference to FIGS. 11 to 14, the spray units 80 are installed on the base 60, and each has a gas pipe 81 connected to the corresponding guide hole 63 and the groove 713, and a gas pipe 81 connected to the gas pipe 81 In the sprayer 82, each gas delivery tube 81 has a gas delivery hole 811 having an outlet end 812 connected to the top surface 61, and an inlet opposite to the outlet end 812 and extending to the mounting base 30 Gas end 813 (see Figure 4). The outlet end 812 of one of the gas pipes 81 communicates with one of the buffer zones 714 of one of the grooves 713, and the outlet end 812 of the other gas pipe 81 communicates with one of the buffer zones 714 of the other groove 713, the sprayers 82 The first axis X and the second axis Y are staggered and correspond to the grooves 713, respectively.

The sprayers 82 are located between the outlet end 812 and the air inlet end 813, and each sprayer 82 has a main body 821, a mixing member 822 installed inside the main body 821, and two mounted on the main body, respectively Valves 823, 823', and two inside the 821 are adjustably mounted on the adjusting buttons 824, 824' of the main body 821, respectively. The main body 821 has a mixing chamber 825 for the mixing member 822 to pass through, two valve holes 826, 826' for the valve members 823, 823' to be slidably installed, and a release liquid to be introduced into and communicated with A release fluid channel 827 of one valve hole 826, a water channel 828 that can introduce water and communicate with another valve hole 826', two manifolds 829, 829' and two that communicate with the valve holes 826 and 826' are respectively connected The first joints 831, 831' at the valve holes 826, 826', two respectively connect to the second joints 832, 832' at the manifolds 829, 829', and one communicates with the mixing chamber 825 and can be introduced The airway 833 of the gas source. One of the valve holes 826 can communicate with the mixing chamber 825. And the gas is input from the first connectors 831, 831', which can drive the valves 823, 823' to block the release liquid channel 827 and the water channel 828, respectively, and the gas is from the second connectors 832, 832' The input can drive the valves 823 and 823' to open the release liquid channel 827 and the water channel 828, respectively. The mixing chamber 825 has a spout 825' connected to the gas delivery holes 811. The adjustment buttons 824, 824' correspond to the release liquid channel 827 and the water channel 828, respectively, and can control the flow rates of the release liquid channel 827 and the water channel 828, respectively. The valves 823, 823' are controlled by gas, which can open and close the release liquid channel 827 and the water channel 828, respectively, and the sprayer 80 can selectively spray water from the nozzles 825 toward the gas delivery hole 811 , Release fluid, or a mixture of the two. Each of the main bodies 821 also has a third connector 830 that can be introduced into the gas source and connected to the gas channels 833. The spraying operation principle of these sprayers 80 is not the focus of the present invention, and a similar structure has been disclosed in the TW certificate No. I583463 patent case, which will not be described here.

In order to further understand the effect produced by the cooperation of the components of the present invention, the use of technical means, and the expected effect, the following is described below, and I believe that I can have a more in-depth and specific understanding of the present invention.

As shown in FIGS. 3 and 12 to 14, when the metal die casting machine completes die casting and the movable mold base 7 is away from the fixed mold base 6, the male mold 701 is in a mold-open state with respect to the female mold 601, After the operator takes out the finished product, the driving cylinder 20 can drive the base 60, the nozzle unit 70 and the spray unit 80 to form a nozzle module relative to the fixed base 10 from a raised position (see FIG. 3 15) and operate in a lowered position (see FIG. 16). When the nozzle module is in the lowered position, the needle nozzle 721 of the nozzle unit 70 corresponds to the male mold 701 and the female mold 601 (not shown in FIG. 16). Show).

Then, the gas control valve groups 32 are controlled according to the built-in program, and the pressure gas is introduced into the gas pipes 81, and the nozzle 72 of the nozzle unit 70 completes the blowing of the male mold 701 and the female mold 601. step.

Then, the gas control valve groups 32 are controlled, and water is introduced from the water channels 828 to the valve holes 826' of the sprayers 82, and the valve parts 823' of the sprayers 20 are controlled to open the water channels 828 At the same time, the water in the water channels 828 is carried out by the pressure and air pressure introduced by the gas transmission holes 811, and sprayed onto the male mold 701 and the female mold 601 of the metal die casting machine for cooling. Then control the valve 823 located on the release channels 827, or (and) control the valve 823' located on the channels 828, so that the release liquid or the mixture of water and release liquid is taken out And sprayed onto the male mold 701, the female mold 601. Finally, pressurized gas is introduced into the gas delivery tubes 81, and the nozzle 72 of the nozzle unit 70 sprays the mold release air on the male mold 701 and the female mold 601 to stabilize the mold release liquid.

As shown in FIGS. 6, 7 and 8, when the release liquid or the mixture of water and release liquid flows through the nozzles 825 to the groove 713 of the nozzle unit 70, the guide The flow zone 715 and the drainage hole 719" are finally ejected by the needle nozzle 721 of the nozzle 72, which can produce a more uniform spray effect.

Therefore, the metal die casting machine nozzle device 100 of the present invention which can enhance the atomization effect can produce the following effects:

1. The pressure gas directly used to blow the molding scraps to bring the release liquid or water atomized from the atomizers 82 can effectively enhance the atomization effect.

2. The pressure gas is used directly for the release liquid and water with atomization. Because they share the same control valve group 32 for the control gas to enter, in operation, the control valve group 32 (solenoid valve) can reduce the Closing times can shorten the operation time.

3. The body 71 of the nozzle unit 70 has a simple structure. Compared with the prior art, the middle groove is simplified, the structure of the nozzle unit 70 can be simplified, and the cost can be reduced. And each groove 713 of the body 71 has the arrangement of the buffer zone 714 and the flow guide region 715, so that water, mold release liquid, or a mixture of the two, or the pressure gas flows from the buffer zone 714 to In the diversion area 715, the drainage through the drainage holes 719" can achieve uniform spraying purpose.

4. Reducing the number of channels required in the cover plate as in the prior art to allow pressure gas to enter the atomizer, which can simplify the nozzle structure and reduce costs.

5. Use the gas pipe 81 as a common pipe for blowing the release liquid and water and the blowing gas pipe, so when the pressure gas is blown, the inside of the gas pipe 81 will become cleaner. When the blow-off liquid and water are carried out again, the residual liquid in the tube can be avoided to affect the uniformity.

6. The arrangement of the needle nozzles 721 can produce pressurized jetting and the jetting stroke is far away, and can also prevent the release liquid remaining inside the nozzle 72 from flowing out naturally.

7. Using the setting of the positioning pressure cylinder 50, when the driving pressure cylinder 20 drives the base 60, the nozzle unit 70 and the spray unit 80, the spray head module is located in the raised position (see FIGS. 3 and 15 ), the positioning piston rod 52 extends relative to the positioning cylinder 51, and the positioning piston rod 52 provides the top end of the driving cylinder 21 of the driving pressure cylinder 20 to resist, which can prevent the base when the pressure source disappears or leaks The nozzle module composed of the seat 60, the nozzle unit 70 and the spray units 80 may fall down and crash quickly. When the driving pressure cylinder 20 drives the nozzle module to switch from the raised position to the lowered position, it is restarted The positioning piston rod 52 is retracted relative to the positioning cylinder 51 (see FIG. 16).

8. The nozzle 72 of the nozzle unit 70 is arranged to be closer to the center line L1 of the nozzle 72 of the nozzle group 720 and the greater the distance between the lower end surface 712 of the base 71, etc. The larger the aperture of the needle nozzle 721 installed at the end of the nozzle 72, and the further away from the center line L, the smaller the distance between the end of the nozzle 72 of the nozzle group 720 and the lower end surface 712 of the base 71, The smaller the aperture of the needle nozzle 721 installed at the end of the nozzle 72, the needle nozzle 721 at different heights can use different positions to match the aperture difference of the needle nozzle 721 to make needles at different positions. The discharge amount of the nozzle 721 is relatively uniform.

It is worth mentioning that the above-mentioned sprayers 82 of the present invention introduce water and mold release agent separately, but they are not limited to two liquids, and only water or mold release agent can be introduced according to the use requirements, and cooperate with these sprays. Different configuration modes of the tube 72 (not shown).

In summary, the metal die casting machine nozzle device of the present invention that can enhance the atomization effect can produce a uniform atomization effect, and can simplify the structure of the body 71 of the nozzle unit 70, reduce the manufacturing cost, and indeed achieve the cost invention Purpose.

However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still classified as This invention covers the patent.

5: machine 6: fixed mold base 7: movable mold base 601: female mold 701: male mold 8: cantilever unit 100: nozzle device 10: fixed base 20: drive pressure cylinder 21: drive cylinder 22: drive piston rod 30 : Mounting seat 31: Seat plate 311: Perforation 32: Control valve group 40: Guide rod 50: Positioning cylinder 51: Positioning cylinder 52: Positioning piston rod 60: Base 61: Top surface 62: Bottom surface 63: Guide hole 64 : Cradle 65: Insert groove 70: Nozzle unit 71: Body 711: Upper end surface 712: Lower end surface 713: Groove 714: Buffer zone 715: Diversion area 716: Groove bottom surface 717: Groove side surface 718: Groove end surface 719: Flange 719': Upper side 719”: Drain hole 72: Nozzle 721: Needle nozzle 720: Nozzle group 80: Spray unit 81: Air pipe 811: Air hole 812: Outlet end 813: Inlet end 82: Sprayer 821: Main body 822: Mixing piece 823: Valve piece 823': Valve piece 824: Adjustment knob 824': Adjustment knob 825: Mixing chamber 825': Spout 826: Valve hole 826': Valve hole 827: Release liquid passage 828 : Waterway 829: manifold 829': manifold 831: first joint 831': first joint 832: second joint 832': second joint 833: air passage 830: third joint L1: center line X: first axis To Y: second axis

Other features and effects of the present invention will be clearly presented in the embodiments referring to the drawings, in which: FIG. 1 is an exploded perspective view of a nozzle device of a conventional metal die casting machine; FIG. 2 is a perspective view of the existing metal die casting machine The combined cross-sectional view of the nozzle device; FIG. 3 is a perspective installation schematic view of an embodiment of a metal die-casting machine nozzle device capable of enhancing the atomization effect of the present invention; FIG. 4 is a perspective assembled view of the embodiment; FIG. 5 is FIG. 4 An incomplete partially enlarged schematic view of FIG. 6 is a three-dimensional exploded schematic view of a base and a nozzle unit of this embodiment; FIG. 7 is a top view of the base of this embodiment; FIG. 8 is along FIG. 7 A cross-sectional view of the line Ⅷ-Ⅷ; FIG. 9 is a perspective view of a nozzle unit of one of the embodiments; FIG. 10 is a front view of a nozzle unit of one of the embodiments; FIG. 11 is a spray unit of one of the embodiments Exploded perspective view; FIG. 12 is a schematic cross-sectional view of the spray unit of this embodiment; FIG. 13 is a cross-sectional view taken along the line XIII-XIII in FIG. 12; FIG. 14 is a cross-sectional view taken along the line XIV-XXIV in FIG. 15 is a schematic view of an operation of this embodiment, illustrating that a driving pressure cylinder drives a base, a nozzle unit and a spray unit composed of a spray head module in a raised position; and FIG. 16 is another embodiment of this embodiment An operation diagram illustrating that the driving pressure cylinder drives the nozzle module to be in a lowered position.

100: spray head device

10: fixed seat

20: Drive pressure cylinder

21: Drive cylinder

22: Drive the piston rod

30: Mount

31: Seat

32: control valve group

51: positioning cylinder

60: Dock

64: deck

65: embedded groove

70: Nozzle unit

71: Ontology

72: Nozzle

80: spray unit

40: Guide rod

50: positioning cylinder

81: Air pipe

82: sprayer

Claims (9)

A metal die-casting machine nozzle device capable of enhancing atomization effect, comprising: a base, including a top surface, a bottom surface opposite to the top surface, and two guide holes communicating from the top surface to the bottom surface; a nozzle The unit includes a body mounted on the bottom surface of the base, and a plurality of nozzles connected to the body, the body has an upper end surface relative to the bottom surface, a lower end surface opposite to the upper end surface, and two Recessed grooves on the upper end surface, each groove extending along a first axis in a long groove shape, the nozzles respectively extend from the lower end surface, and are respectively connected to the grooves; and two sprays The unit is installed on the base, and each has a gas delivery pipe connected to the corresponding groove, and a sprayer connected to the gas delivery pipe, each gas delivery pipe has a gas delivery hole, and the gas delivery hole has a connection At the outlet end of the top surface, and an air inlet end opposite to the outlet end, the sprayers are located between the outlet ends and the air inlet ends, and each sprayer has an oblique intersection and communicates with the gas delivery The nozzle of the hole can selectively eject water, release liquid, or a mixture of the two. The nozzle device of a metal die-casting machine capable of enhancing the atomization effect according to claim 1, wherein each groove of the body of the nozzle unit has at least one circular buffer corresponding to the leading end of the gas delivery hole Zone, and a deflector zone connected to the buffer zone and extending along the first axis, the inner diameter of the buffer zone corresponding to a second axis perpendicular to the first axis is greater than that of the deflector zone corresponding to the The width of the second axis. The nozzle device of a metal die-casting machine capable of enhancing the atomization effect as described in claim 2, wherein each groove of the body of the nozzle unit is connected by a groove bottom surface and a pair of the groove bottom surface and the top surface The side surface of the groove extending along the first axial direction and a pair of groove end surfaces intersectingly connected between the bottom surface of the groove and the side surfaces of the groove and spaced along the first axial direction are jointly defined, and the body further has Two pairs of flanges respectively disposed in the grooves and spaced apart along the second axis, the two flanges in each groove jointly define the flow guide area, and the flanges are connected to the bottom surface of the groove With the groove side surfaces, the flanges each have an upper side surface between the top surface and the groove bottom surface, and a plurality of drainage holes communicating from the upper side surface to the lower end surface and to the nozzles respectively, the The equal drainage holes are arranged at intervals along the first axis. The nozzle device of a metal die-casting machine capable of enhancing the atomization effect as described in claim 3, wherein each nozzle of the nozzle unit has a needle nozzle installed at the end. The nozzle device of a metal die-casting machine capable of enhancing the atomization effect according to claim 4, wherein the base further has a center line perpendicular to the bottom surface and passing through the center point of the bottom surface, and the nozzle unit further includes The nozzle groups arranged at intervals in the second axis, the number of nozzles of each nozzle group is plural, the greater the distance between the nozzle ends of the nozzle groups and the base, the The larger the aperture of the installed needle nozzle and the smaller the distance between the nozzle ends of the nozzle groups and the base, the smaller the aperture of the needle nozzle installed at the nozzle ends. The nozzle device of the metal die-casting machine capable of enhancing the atomization effect according to claim 3, wherein the number of buffer zones for each groove of the nozzle unit is two, and the flow guide area is connected between the buffer zones , And the outlet end of one spray unit is connected to one buffer zone of one of the grooves, the outlet end of the other spray unit is connected to one buffer zone of the other groove, the spray units are along the first axis The settings are staggered. The nozzle device of a metal die-casting machine capable of enhancing the atomization effect according to claim 1, further comprising a fixed seat fixed to the die-casting machine, a driving pressure cylinder mounted on the fixed seat and connected to the base, and a setting The mounting base above the fixing base, most of the guide rods connected between the mounting base and the base and slidably penetrating the fixing base, and a positioning pressure cylinder mounted on the mounting base, the positioning pressure The cylinder has a cylinder body and a piston rod telescopic relative to the cylinder body, and the driving pressure cylinder can drive a spray head module composed of the base, the nozzle unit and the spray units in an ascending position with a Switching between the lowered position, when the nozzle module is in the raised position, the piston rod of the positioning pressure cylinder extends and abuts against the top of the driving pressure cylinder. The nozzle device of a metal die-casting machine capable of enhancing the atomization effect according to claim 1, wherein the sprayers of the spraying units each have a main body, a mixing piece installed inside the main body, and two are respectively installed on the main body The internal valve member, two adjustable knobs which are respectively adjustably installed in the main body, the main body has a mixing chamber for the mixing member to pass through, two valve holes for slidingly installing the valve members, and one A release fluid channel that introduces release fluid and communicates with one of the valve holes, a water channel that can introduce water and communicate with the other valve hole, two manifolds that communicate with the valve holes, and two that communicate with the valve holes, respectively The first joint of the two, the second joint of the two respectively communicating with the manifolds, and a gas channel that is connected to the mixing chamber and can introduce a gas source, wherein a valve hole can be connected to the mixing chamber, and the gas from the first One connector input can drive the valve parts to block the release liquid channel and the water channel, and the gas input from the second connector can drive the valve parts to open the release liquid channel and the water channel, The nozzles are respectively arranged in the mixing chamber, the adjusting buttons respectively correspond to the release liquid channel and the water channel, and can respectively control the flow rates of the release liquid channel and the water channel, and the main body also has a gas source that can be introduced And connected to the third connector of the airway. The nozzle device of a metal die-casting machine capable of enhancing the atomization effect as described in claim 1, wherein the base further includes two card holders connected to the bottom surface, and the card holders together define an upper width and a lower width In the groove, the guide holes communicate with the groove, and the body of the nozzle unit is nested in the groove.

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