TWI583463B - Sprayer for metal die-casting machine and nozzle device with the sprayer - Google Patents

Description

Sprayer suitable for metal die casting machine and nozzle device having the same

The present invention relates to a sprayer, and more particularly to a sprayer suitable for use in a metal die casting machine and a metal die casting machine head device having the sprayer.

Referring to Fig. 1, the existing metal die casting machine 1 needs to spray a release agent onto the mold 11 during the die casting process to allow the casting to be smoothly demolded. The release liquid is sprayed through a spray device 12 having a plurality of parallel nozzles 121, which are nozzles formed by bending a copper tube. After the die casting is completed and the casting is taken out, the spray device 12 is driven to a male mold 111 and a female mold 112 of a mold 11, and the spray liquid is sprayed by the spray tubes (ie, water and release agent). The mixture is applied to allow the release agent to adhere to the surface of the male mold 111 and the master mold 112. At this time, the mold 11 is closed and the next round of the metal die casting process is continued.

After the metal die casting, the mold temperature is extremely high. If the release agent is directly sprayed thereon, there is often a problem of poor adhesion. Therefore, the mold 11 needs to be cooled before the release agent can be sprayed. The conventional spray device 12 directly uses the release liquid as the coolant for cooling the mold 11 because the spray device 12 can spray the release liquid from the entire spray pipe with high pressure gas only once during the spray operation. It is impossible to select only the water or the release liquid, and the existing metal die casting machine 1 uses the nozzle 121 to cool the mold 11, so that a certain amount of the release liquid is sprayed first to the mold. 11 is cooled, and then the release liquid required for die casting is sprayed again, so that the waste of the release liquid is also time consuming in the process.

Accordingly, it is an object of the present invention to provide a sprayer suitable for use in a metal die casting machine which allows the metal die casting machine to be more economical in the use of the release liquid and to shorten the process time.

Therefore, the present invention is applicable to a sprayer of a metal die casting machine, can be installed in a nozzle of a metal die casting machine, and can be connected to a separate liquid source, a water source and a gas source. The sprayer of the metal die casting machine comprises: a body and two valve members.

The body includes a release channel connected to the release liquid source, a water channel connected to the water source, an air passage connecting the gas source, and a mixing chamber. The release channel has at least one release fluid port that communicates with the mixing chamber. The water channel has at least one water hole that communicates with the mixing chamber. The air passage has at least one air vent that communicates with the mixing chamber. The release liquid hole and the water hole are located downstream of the air hole. The mixing chamber has a spout that communicates with the outside world.

The valve members are disposed on the body and are respectively disposed in the release liquid passage and the water passage, and can respectively open and close the release liquid passage and the water passage.

Therefore, another object of the present invention is to provide a nozzle device suitable for a metal die casting machine capable of selectively ejecting water or a release liquid, which can make the metal die casting machine more economical in the use of the release liquid, and Reduce process time.

Accordingly, the present invention is applicable to a nozzle device of a metal die casting machine, comprising at least one nozzle and a sprayer suitable for a metal die casting machine as described above.

The spray head includes a base body and a nozzle unit disposed on the base body.

The sprayer suitable for use in a metal die casting machine is mounted to the substrate, the spout being connected to the nozzle unit.

The effect of the invention is that the spray nozzle can selectively spray the water, the release liquid, or a mixture of the two, so that the nozzle device can first cool the mold with water, and then spray the release liquid to Speed up the cooling and reduce the amount of release agent.

Referring to Figures 2, 3 and 4, the present invention is applicable to an embodiment of a nozzle device for a metal die casting machine, comprising a nozzle 2 and a plurality of sprayers 6 suitable for use in a metal die casting machine. The head 2 includes a base 3, a plurality of nozzle units 4 disposed on the base 3, and four nozzle units 5.

The base 3 has a plurality of buffer chambers 31 formed inside. The nozzle units 4 are disposed on the base 3 and are respectively connected to the buffer chambers 31. Each nozzle unit 4 includes a plurality of nozzles 41. The nozzle units 5 are disposed at the bottom of the base 3, and each of the nozzle units 5 includes a plurality of nozzles 51. The buffer chambers 31 correspond to the number of the nozzle units 4, and the number may be only one.

Referring to Figures 2, 4 and 5, the sprayers 6 suitable for use in a metal die casting machine are mounted on the top of the base 3 and are connected to the buffer chambers 31, respectively. Each sprayer 6 suitable for use in a metal die casting machine can be coupled to a release fluid source 21, a water source 22, and a gas source 23. The sprayer 6 of the metal die casting machine comprises: a body 7 mounted on the base body 3, two valve members 8, and two flow members 9.

Referring to FIG. 6, FIG. 7, and FIG. 8, the body 7 includes a base portion 70, a spacer member 72 defining a mixing chamber 71, a mixing member 73, a two-valve chamber 74, and a separation from the liquid source 21. A type of liquid passage 75, a water passage 76 connecting the water source 22, and an air passage 77 connecting the gas source 23.

The spacer 72 is disposed within the base and is generally tubular. The mixing chamber 71 has a spout 711. The spout 711 is gradually enlarged toward the outside and communicates with the buffer chamber 31 of the outside and communicates with the corresponding nozzle unit 4. The mixing member 73 is mounted in the mixing chamber 71 and has a shaft portion 731 and a dispersing portion 732. A part of the shaft portion 731 passes through the spout 711 of the mixing chamber 71. The dispersing portion 732 is formed at the end of the shaft portion 821 of the mixing member 73 and has a substantially disk shape. The dispersion portion 732 faces the discharge port 711 of the mixing chamber 71.

The release liquid passage 75 has a blind hole portion 751, a plurality of release liquid holes 752 that communicate with the mixing chamber 71, and a liquid injection portion 753. The blind hole portion 751 is recessed on the end of the mixing member 73 opposite to the dispersion portion 732. The detachable liquid hole 752 is opened around the mixing member 73, and each of the release liquid holes 752 extends obliquely from the blind hole portion 751 toward the nozzle 711. One end of the liquid injection portion 753 is connected to the blind hole portion 751, and the other end is connected to the release liquid source 21. The release liquid can flow from the liquid injection portion 753 and flow into the mixing chamber 71 along the path I.

The number of the above-mentioned release liquid holes 752 may also be one, and the angle between the extending direction of each of the release liquid holes 752 and a central axis L of the mixing member 73 is less than 90 degrees, and the aforementioned angle is preferably 15 to 75. The degree is preferably from 30 to 60 degrees, more preferably from 35 to 55 degrees. In this embodiment, the angle between the extending direction of each of the dispensing liquid holes 752 and the central axis L is 45 degrees.

The water channel 76 has a plurality of water holes 761, a water ring groove portion 762, a communication hole 763, and a water injection portion 764. The water holes 761 are surrounded by the spacers 72. The water ring groove portion 762 is formed around the outer circumferential surface of the spacer 72 and communicates with the water holes 761, and the water holes 761 extend obliquely from the water ring groove portion 762 toward the nozzle port 711. The communication hole 763 has an inverted T shape, and one end of the bottom side communicates with the water ring groove portion 762, and the other end communicates with the outside, and the tip end communicates with the water injection portion 764. The end that connects to the outside is blocked with a plug when in use. The water injection portion 764 extends outward from the top end of the communication hole 763 and communicates with the water source 22. Water can flow from the water injection portion 764 and flow into the mixing chamber 71 along the path II.

The number of the aforementioned water holes 761 may also be one. The angle between the extending direction of each of the water holes 761 and the central axis L is less than 90 degrees, and the aforementioned angle is preferably 15 to 75 degrees, more preferably 30 to 60 degrees, still more preferably 35 to 55 degrees. In this embodiment, the angle between the extending direction of each water hole 761 and the central axis L is 45 degrees.

The air passage 77 has a plurality of air holes 771, a gas ring groove portion 772, and a gas injection portion 773. The air holes 771 are formed around the spacer 72. The gas ring groove portion 772 is formed around the outer peripheral surface of the spacer 72 and communicates with the air holes 771. One end of the gas injection portion 773 is connected to the gas ring groove portion 772, and the other end is connected to the gas source 23. Gas can flow from the gas injection portion 773 and into the mixing chamber 71 along the path III.

The detachable liquid holes 752 and the water holes 761 are located downstream of the air holes 771, wherein the detachable liquid holes 752 are located between the water holes 761 and the air holes 771. The so-called downstream refers to the point where the fluid will flow out from a certain position, that is, when the gas source 23 is turned on, the gas will flow out from the pores 771 (ie, flow out from a specific position), and The separation liquid hole 752 and the water holes 761 are passed through, and the release liquid or water is carried out of the nozzle 711 of the mixing chamber 71.

Referring to FIG. 5, FIG. 7 and FIG. 8, the valve members 8 are respectively disposed in the valve chambers 74 of the body 7, and are respectively disposed in the release liquid passages 75 and the water passages 76, and can be opened and closed respectively. The release channel 75 and the channel 76. Each valve member 8 includes a top plug 81 and a bottom valve 82. Each plug 81 is fixed to the top end of each valve chamber 74 and closed. Each of the bottom valves 82 is movably disposed in the valve chambers 74 and has a body portion 821 and a plug portion 822 that is gradually closed at the end of the body portion 821. The body portions 821 are respectively disposed through the valve chambers 74, and are respectively disposed in the release liquid passages 75 and the water passages 76, respectively. The plug portions 822 are removably inserted into the communication hole 763 and the blind hole portion 751, respectively, and the water channel 76 and the release liquid channel 75 can be opened and closed, respectively. The valve members 8 can be replaced by other conventional valve members 8, and are not limited by the disclosure of the present invention.

Each valve chamber 74 has a first air inlet portion 741 and a second air inlet portion 742. Each of the first air inlet portions 741 is located at the top of each of the valve chambers 74. Thus, after the gas is introduced from the first air inlet portion 741, the air pressure is pushed against the bottom valve 82 to move away from the top plug 81. The water channel 76 or the release channel 75 is then closed. Each of the second air inlet portions 742 is located at the bottom of each of the valve chambers 74. Thus, after the gas is introduced from the second air inlet portion 742, the air pressure is pushed against the bottom valve 82 toward the top plug 81 to be opened. The water channel 76 or the release channel 75.

The flow rate members 9 are disposed in the liquid injection portion 753 of the release liquid passage 75 and the water injection portion 764 of the water passage 76, respectively. Each flow piece 9 is a screw valve that can be locked into the release channel 75 or the water channel 76 by rotation, thereby reducing the inflow of the release liquid or water.

Referring to FIG. 3, FIG. 7 and FIG. 8, in use, the user can control the water channel 76 or the release channel through the first air inlet portion 741 and the second air inlet portion 742 of each valve chamber 74. The opening and closing of 75. The gas is ejected through the air passage 77, flows through the separation liquid hole 752 to bring out the release liquid, and flows through the water holes 761 to carry out water, and is ejected from the nozzle 711. The fluid ejected from the spout 711 comes into contact with the dispersing portion 732 of the spout 711, and is forced to stay in the buffer chamber 31 and mix uniformly, and then flows out from the nozzle unit 4. Thus, by controlling the respective valve members 8, it is possible to control the type of fluid to be discharged from each of the nozzles 2, such as water, a release liquid, or a mixture of the former two.

It is worth mentioning that, since each of the buffer chambers 31 is provided with a sprayer 6, which can be independently controlled without interfering with each other, when a smaller mold is used, some sprayers 6 which cannot be sprayed to the mold are closed, Alternatively, the sprayer 6 corresponding to the position of the mold is opened only for the specific position of the mold, and the overall flexibility of the operation is better, and the user can arbitrarily adjust according to the needs thereof.

After the die casting machine is completed, the gas is sprayed through the nozzle units 5 of the nozzle to complete the blowing process. Thereafter, the sprayer 6 is used to control the valve member 8 on the water passage 76, and the water is taken out by the gas of the gas source 23 and sprayed onto a mold (not shown) of the metal die casting machine for cooling. Finally, the valve member 8 on the release channel 75 is controlled to allow the release liquid to be carried out and sprayed onto the mold. When the foregoing steps are completed, the metal die casting machine can perform the next round of die casting process.

Through the above description, the advantages of the present invention can be further summarized as follows:

1. Through the sprayer 6, the spray head 2 can selectively spray water, release liquid, or a mixture of the two, so that the spray head can first cool the mold with water, and then spray the release liquid to accelerate the cooling. Speed and reduce the amount of release agent.

Second, since the detachable liquid hole 752 and the water holes 761 are opened obliquely, the release liquid and the water can be smoothly taken out by the gas, thereby improving the efficiency of spraying.

3. Through the flow pieces 9, the amount of the separated liquid and water can be adjusted, so as to control the amount of the separated liquid and water sprayed as needed.

4. Since the buffer chambers 31 are spaced apart from each other, the specific position spray liquid can be selectively selected by controlling each sprayer 6 independently, thereby increasing the operational flexibility.

In summary, the sprayer 6 can selectively spray water, a release liquid, or a mixture of the two, so that the spray head can first cool the mold with water, and then spray the release liquid, thereby speeding up the cooling rate and reducing the separation. The amount of the agent is such that the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

1‧‧‧Metal die casting machine

11‧‧‧Mold

111‧‧‧Male model

112‧‧‧Female model

12‧‧‧Spray device

121‧‧‧Spray

2‧‧‧Spray

21‧‧‧Dissociated liquid source

22‧‧‧Water source

23‧‧‧ gas source

3‧‧‧ base

31‧‧‧ buffer room

4‧‧‧Nozzle unit

41‧‧‧Nozzles

5‧‧‧ gas nozzle unit

51‧‧‧ gas nozzle

6‧‧‧Spray sprayer for metal die casting machines

7‧‧‧ Ontology

70‧‧‧ base

71‧‧‧Mixed room

711‧‧‧ spout

72‧‧‧ spacers

73‧‧‧Mixed parts

74‧‧‧Valve room

741‧‧‧First Intake Department

742‧‧‧Second air intake

75‧‧‧Displacement fluid channel

751‧‧‧Blind hole

752‧‧‧ release liquid hole

753‧‧‧Injection Department

76‧‧‧ watercourse

761‧‧‧ water hole

762‧‧‧Water ring groove

763‧‧‧Connected holes

764‧‧‧Water Injection Department

77‧‧‧ Airway

771‧‧‧ vent

772‧‧‧Air ring groove

773‧‧‧Injection Department

8‧‧‧ valve parts

81‧‧‧ top plug

82‧‧‧Bottom valve

821‧‧‧ Body

822‧‧‧Sett

9‧‧‧ flow parts

I‧‧‧ Path

II‧‧‧ Path

731‧‧‧ shaft body

732‧‧‧Distribution Department

III‧‧‧ Path

L‧‧‧ center axis

Other features and advantages of the present invention will be apparent from the embodiments of the drawings, wherein: FIG. 1 is an incomplete side view illustrating a conventional metal die casting machine; FIG. 2 is a perspective view illustrating The present invention is applicable to an embodiment of a nozzle device of a metal die casting machine; Fig. 3 is a cross-sectional view taken along line III-III of Fig. 2, illustrating the embodiment; Fig. 4 is a device circled along line IV of Fig. 2. A perspective view of a sprayer suitable for a metal die casting machine of the embodiment; FIG. 5 is an exploded view showing the sprayer suitable for a metal die casting machine of the embodiment; FIG. 6 is a perspective view of another perspective. A sprayer suitable for a metal die casting machine of the embodiment; FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 6, illustrating the sprayer suitable for a metal die casting machine; and FIG. 8 is a cut line along the line of FIG. A cross-sectional view of VIII-VIII illustrating the sprayer suitable for use in a metal die casting machine.

2‧‧‧Spray

3‧‧‧ base

31‧‧‧ buffer room

4‧‧‧Nozzle unit

41‧‧‧Nozzles

6‧‧‧ sprayer

7‧‧‧ Ontology

70‧‧‧ base

71‧‧‧Mixed room

711‧‧‧ spout

73‧‧‧Mixed parts

731‧‧‧ shaft body

732‧‧‧Distribution Department

8‧‧‧ valve parts

9‧‧‧ flow parts

Claims (10)

A sprayer suitable for a metal die casting machine can be installed in a nozzle of a metal die casting machine and can be connected to a liquid source, a water source and a gas source. The sprayer of the metal die casting machine comprises: a body, including a a release liquid passage connecting the discharge liquid source, a water passage connecting the water source, an air passage connecting the gas source, a mixing chamber, and a mixing member installed in the mixing chamber, the release liquid passage having at least a release liquid hole communicating with the mixing chamber, and a recess formed in the blind hole portion of the mixing member, the water passage having at least one water hole communicating with the mixing chamber, the air passage having at least one air hole communicating with the mixing chamber, a release liquid hole and the water hole are located downstream of the air hole, the release liquid hole is opened in the mixing member and communicates to the blind hole portion, the mixing chamber has a nozzle connected to the outside; and the two valve member is mounted The main body is disposed in the separation liquid channel and the water channel, respectively, and the separation liquid channel and the water channel can be respectively opened and closed. A sprayer suitable for use in a metal die casting machine according to claim 1, wherein a part of the mixing member passes through the spout of the mixing chamber, and further has a dispersion portion formed at the end and having a substantially disk shape. A sprayer suitable for a metal die casting machine according to claim 1, wherein the release liquid hole extends obliquely from the blind hole portion toward the discharge port. A sprayer suitable for a metal die casting machine according to claim 1, wherein the valve member corresponding to the release passage includes a gradually closing plug, the plug being removably plugged to the blind hole The part can be opened and closed. A sprayer suitable for a metal die casting machine according to claim 1, wherein the body further comprises a spacer surrounding the mixing chamber, the water channel further having a water ring groove portion surrounding the spacer, and a plurality of water holes communicating with the water ring groove portion and the mixing chamber, the air channel further having a gas ring groove portion surrounding the spacer member, and a plurality of the gas ring groove portion And the pores of the mixing chamber. A sprayer suitable for use in a metal die casting machine according to claim 5, wherein the water holes extend obliquely from the water ring groove portion toward the nozzle. A sprayer suitable for a metal die casting machine according to claim 1, wherein the water passage further has a communication hole communicating with the water hole, and the valve member corresponding to the water passage includes a gradually converging plug portion, the plug The portion is removably plugged to the communication hole, and the water channel can be opened and closed. The sprayer suitable for a metal die casting machine according to claim 1, further comprising two flow pieces disposed in the release liquid passage and the water passage, respectively. A nozzle device suitable for a metal die casting machine, comprising: a nozzle comprising a base body and a nozzle unit disposed on the base body; and a sprayer suitable for a metal die casting machine as claimed in claim 1, which is suitable for metal die casting A sprayer of the machine is mounted on the spray head, and the spray port is connected to the nozzle unit. A head device suitable for a metal die casting machine according to claim 9, wherein the base body has a buffer chamber, the body of the sprayer suitable for the metal die casting machine is mounted on the top of the base body, and the nozzle of the mixing chamber is connected To the buffer chamber, the body further includes a mixing member disposed in the mixing chamber, a portion of the mixing member passing through the spout of the mixing chamber, and further having a dispersion portion formed at the end and having a substantially disk shape.