A control gas distribution device for die casting mold spraying

Abstract

The application relates to a control gas distribution device for die casting mold spraying, which comprises a distribution block, an atomizing gas joint, a plurality of control gas joints, a plurality of atomizing control gas joints, a valve base and a plurality of valve groups. The distribution block is provided with an atomizing gas hole, a plurality of control gas holes and a plurality of atomizing control gas holes. The atomizing gas joint is used for supplying atomizing gas to an atomizing gas cavity. The plurality of control gas joints are respectively used for supplying control gas to the plurality of control gas holes. The plurality of atomizing control gas joints are respectively used for supplying atomizing control gas to the plurality of atomizing control gas holes. The valve base is provided with a plurality of atomizing gas holes, a plurality of control gas holes, a plurality of atomizing control gas holes and a plurality of atomizing gas outlet holes. The plurality of valve groups are respectively installed in the plurality of atomizing control gas holes, and each valve group can be opened under the drive of the atomizing control gas, so that the atomizing control gas hole is in communication with the corresponding atomizing gas hole and atomizing gas outlet hole at the same time. The application can concentrate the gas path elements together and simplify the pipeline connection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of die casting mold spraying, in particular to a control gas distribution device for die casting mold spraying. BACKGROUND

[0002] Die casting is a metal casting process, and the traditional die casting process mainly consists of four steps, including mold preparation, filling, injection and shakeout. In the preparation process, release agent needs to be sprayed into the mold cavity. The release agent can not only help reduce the friction between the movable parts of the die casting mold and improve the service life, but also reduce the working temperature of the mold to avoid mold thermal fatigue. In addition, the release agent can also be used as a parting agent for die casting molds and die castings, which helps the die castings to be demolded after molding. Therefore, the die casting mold has quite a few requirements for the release agent: the release agent cannot adhere to the die castings on the cavity, the release agent cannot contain impurities which may cause defects in the die castings, the release agent cannot corrode the mold surface, the release agent cannot produce harmful gases, the release agent cannot produce ash when heated, and the release agent should adhere to the cavity surface without being washed away by the metal liquid.

[0003] In the traditional process, the release agent is sprayed manually, which has low efficiency and cannot meet the needs of automatic production. Therefore, die casting mold spraying fixtures have emerged. However, the existing die casting mold spraying fixtures are complicated to install and spray, which not only increases the cost, but also is not conducive to the later maintenance. Patent No. CN109590135A discloses a mold spraying frame, which integrates the atomization channel and the coating channel in the same nozzle seat, so that each nozzle integrates spraying and blowing together, which can simplify the equipment and save costs. However, the inlet of the coating channel and the inlet of the atomization channel of the die casting mold spraying frame are respectively provided with a pipe connector, and the pipe connector needs to be connected with an atomizing gas source through a pipeline, which results in more pipelines on the spraying frame and complex connection, and the overall structure is still relatively large, which is complicated to install and maintain. SUMMARY

[0004] Therefore, it is necessary to provide a control gas distribution device for die casting mold spraying in view of the problems that the inlet of the coating channel and the inlet of the atomization channel of the existing die casting mold spraying fixture are respectively provided with a pipe connector, and the pipe connector needs to be connected with an atomizing gas source through a pipeline, which results in more pipelines on the spraying frame and complex connection, and the overall structure is still relatively large, which is complicated to install and maintain.

[0005] The present application provides a control gas distribution device for die casting mold spraying.

[0006] The distribution block has an atomizing gas cavity, and the distribution block is provided with a plurality of atomizing gas holes one, a plurality of control gas holes one and a plurality of atomizing control gas holes one, and the plurality of atomizing gas holes one are in communication with the atomizing gas cavity.

[0007] atomizing gas joint, which is installed on the distribution block and communicates with the atomizing gas cavity and is used for providing atomizing gas to the atomizing gas cavity;

[0008] a plurality of control gas joints, which respectively communicate with the plurality of control gas holes one and are used for providing control gas to the control gas holes one;

[0009] a plurality of atomizing control gas joints, which respectively communicate with the plurality of atomizing control gas holes one and are used for providing atomizing control gas to the atomizing control gas holes one;

[0010] a valve base, which is connected with the distribution block, and a plurality of atomizing gas holes two, a plurality of control gas holes two, a plurality of atomizing control gas holes two and a plurality of atomizing gas outlet holes are formed in the valve base, the plurality of atomizing gas holes two respectively communicate with the plurality of atomizing gas holes one, the plurality of control gas holes two all penetrate the valve seat and the plurality of control gas holes two respectively communicate with the plurality of control gas holes one in correspondence, the top ends of the plurality of atomizing control gas holes two respectively communicate with the plurality of atomizing control gas holes one in correspondence, and the plurality of atomizing gas outlet holes and the plurality of atomizing gas holes two all respectively communicate with the plurality of atomizing control gas holes two; and

[0011] a plurality of valve groups, which are respectively installed in the plurality of atomizing control gas holes two, and each valve group can be opened under the drive of the atomizing control gas to make the atomizing control gas hole two simultaneously communicate with the corresponding atomizing gas hole two and atomizing gas outlet hole.

[0012] In a preferred embodiment of the present application, the control gas joint comprises:

[0013] a control gas female joint, which is installed on the distribution block;

[0014] a control gas quick plug, which is installed in the corresponding control gas hole one; and

[0015] a hose one, which is connected with the control gas female joint and the control gas quick plug at two ends respectively.

[0016] In a preferred embodiment of the present application, the distribution block further has a mounting cavity, the bottom of the mounting cavity is provided with the plurality of atomizing gas holes one, the plurality of control gas holes one and the plurality of atomizing control gas holes one, and the hose one is accommodated in the mounting cavity; a socket one which communicates with the mounting cavity is formed in the distribution block; and the control gas distribution device further comprises:

[0017] an integrated block one, which is located outside the socket one and is detachably and sealingly connected with the distribution block, a plurality of mounting holes one which communicate with the socket one are formed in the integrated block one, and the plurality of control gas female joints are respectively installed in the plurality of mounting holes one.

[0018] In a preferred embodiment of the present application, the atomizing control gas joint comprises:

[0019] An atomizing control gas female joint is installed on the distribution block;

[0020] An atomizing control gas quick plug is installed in the corresponding atomizing control gas hole;

[0021] A hose II is accommodated in the installation cavity and has two ends connected with the atomizing control gas female joint and the atomizing control gas quick plug respectively.

[0022] In a preferred embodiment of the present application, the distribution block is provided with a second socket communicating with the installation cavity; the control gas distribution device further comprises:

[0023] A second integrated block is located outside the second socket and detachably and sealingly connected with the distribution block, the second integrated block is provided with a plurality of installation holes II communicating with the second socket, and a plurality of atomizing control gas female joints are installed in the installation holes II respectively.

[0024] In a preferred embodiment of the present application, the valve base is provided with a channel communicating with the plurality of atomizing gas holes II, the atomizing control gas hole II has a lower hole segment communicating with the channel and an upper hole segment communicating with the atomizing gas outlet hole, and each valve group can be opened under the drive of the atomizing control gas to make the channel communicate with the atomizing gas outlet hole through the atomizing control gas hole II; the valve group comprises:

[0025] A valve cover is movably installed at the top end of the upper hole segment, the valve cover is sleeved with two spiral retaining rings and a sealing ring I located between the two spiral retaining rings and achieving the sealing between the valve cover and the upper hole segment;

[0026] A valve core is located in the lower hole segment and can move up and down in the lower hole segment, the diameter of the valve core is greater than the hole diameter of the upper hole segment and the bottom surface area of the valve core is smaller than the top surface area of the valve cover, the valve core is provided with a sealing ring II at the top end and the sealing ring II is 0.3mm higher than the top surface of the valve core, the valve core is connected with a valve rod I and a valve rod II at the two ends respectively, and the top end of the valve rod I is connected with the valve cover;

[0027] A valve spring is located in the lower hole segment and sleeved outside the valve rod II, when the valve spring is in a natural state, the valve core blocks the upper hole segment and the lower hole segment; and

[0028] A valve seat is fixed at the bottom end of the lower hole segment and connected with the valve spring at the top end, the valve seat is sleeved with a sealing ring III achieving the sealing between the valve seat and the lower hole segment, and the top end of the valve seat is provided with an avoiding hole avoiding the valve rod II.

[0029] In a preferred embodiment of the present application, the top end of the atomizing gas hole II, the control gas hole II and the atomizing control gas hole II is provided with a sealing ring IV sealingly abutting the bottom surface of the distribution block.

[0030] In a preferred embodiment of the present application, the control gas distribution device further comprises:

[0031] A plurality of exhaust joints, each of which is mounted on the valve base and communicates with the upper half-hole section of the second plurality of atomization control gas holes.

[0032] In a preferred embodiment of the present application, the gas pressure of the atomization gas source is 0.45-0.55 MPa.

[0033] And / or, the gas pressure of the control gas source and the atomization control gas source is 0.3-0.4 MPa.

[0034] In a preferred embodiment of the present application, a release agent hole one is formed on the distribution seat, a release agent hole two is formed on the valve base, and the release agent hole one and the release agent hole two are in communication; the control gas distribution device further comprises:

[0035] A plug which is detachably inserted into the release agent hole one;

[0036] And / or, the control gas distribution device further comprises:

[0037] A cover plate which is arranged at the top end of the distribution block and seals the mounting cavity; and

[0038] A plurality of bolts, each of which is connected with the distribution block, the valve base and the cover plate.

[0039] Compared with the prior art, the present application has the following advantages:

[0040] 1. The control gas distribution device for die casting mold spraying provided by the present application simplifies the pipeline connection by arranging the distribution block, the valve base, and the atomization gas joint, the control gas joint and the atomization control gas joint on the distribution block, which can directly connect with the gas source, solves the complicated assembly problem, optimizes the shape and volume of the spraying tool, saves the assembly space, reduces the installation engineering quantity, and simplifies the installation and maintenance of the spraying tool.

[0041] 2. The control gas distribution device for die casting mold spraying provided by the present application separately controls the atomization gas, the control gas and the atomization control gas, which ensures the precise control of the release agent spraying and atomization.

[0042] 3. The present invention proposes a control gas distribution device for spraying die-casting molds. The valve assembly structure is designed such that the atomized gas introduced through the atomizing gas connector is first stored in the channel. When atomized gas is needed, it is introduced into the atomizing control gas port one through the atomizing control gas connector. Because the bottom area of ​​the valve core is smaller than the top area of ​​the valve cover, the pressure of the atomizing control gas on the valve cover (0.3-0.4 MPa) is greater than the pressure of the atomizing gas on the valve core (0.45-0.55 MPa), allowing the valve cover to move downwards. This connects the upper half of the atomizing control gas port two with the channel, allowing the atomized gas stored in the channel to enter the atomizing gas outlet, thus providing atomized gas for the spraying fixture and realizing the control of high-pressure atomized gas using low-pressure atomizing control gas.

[0043] 4. The present invention proposes a control gas distribution device for spraying die-casting molds, which forms a surface seal between the distribution block and the valve base by setting multiple sealing rings, thereby ensuring the stability of the gas pressure of atomizing gas, control gas, and atomized control gas. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of a control gas distribution device for spraying die-casting molds according to Embodiment 1 of the present invention;

[0045] Figure 2 for Figure 1 A bottom view;

[0046] Figure 3 for Figure 1 A schematic diagram of the valve base of a control gas distribution device for spraying medium-pressure casting molds;

[0047] Figure 4 for Figure 1 A schematic diagram of the distribution block of a control gas distribution device for spraying medium-pressure casting molds;

[0048] Figure 5 for Figure 4 A bottom view;

[0049] Figure 6 for Figure 1 A partial structural schematic diagram of a control gas distribution device for spraying die-casting molds;

[0050] Figure 7 for Figure 6 A top view of a control gas distribution device for spraying die-casting molds;

[0051] Figure 8 for Figure 1 A schematic diagram of the valve assembly of the control gas distribution device for spraying medium-pressure casting molds.

[0052] Fig. 1: 1, distribution block; 2, atomizing gas joint; 3, control gas joint; 4, atomizing control gas joint; 5, valve base; 6, valve group; 7, integrated block one; 8, integrated block two; 9, sealing ring four; 10, plug; 11, exhaust joint; 12, cover plate; 101, socket two; 102, atomizing gas hole one; 103, control gas hole one; 104, atomizing control gas hole one; 105, release agent hole one; 106, socket one; 301, control gas female joint; 302, control gas quick plug; 401, atomizing control gas female joint; 402, atomizing control gas plug block; 501, atomizing gas hole two; 502, control gas hole two; 503, atomizing control gas hole two; 504, atomizing gas outlet hole; 505, release agent hole two; 601, valve cover; 602, spiral retaining ring; 603, sealing ring one; 604, valve core; 605, sealing ring two; 606, valve stem one; 607, valve stem two; 608, valve spring; 609, valve seat; 610, sealing ring three; 611, avoidance hole. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0054] Embodiment 1

[0055] The present embodiment provides a control gas distribution device for die casting mold spraying, which is used in a spraying tool for a die casting mold and can be directly installed on a spraying frame of the spraying tool to integrate a connecting pipeline for the spraying tool. Please refer to Figures 1-7 The control gas distribution device for die casting mold spraying in the present embodiment includes a distribution block 1, an atomizing gas joint 2, a plurality of control gas joints 3, a plurality of atomizing control gas joints 4, a valve base 5, and a valve group 6, and can further include an integrated block one 7, an integrated block two 8, a plurality of sealing rings four 9, a cover plate 12, and a plurality of bolts (not shown in the figure). The cover plate 12 is arranged at the top end of the distribution block 1, and the plurality of bolts are connected with the distribution block 1, the valve base 5, and the cover plate 12, so as to fix the distribution block 1, the valve base 5, and the cover plate 12 together.

[0056] The top surface of the distribution block 1 is concave and has a mounting cavity and an atomizing gas cavity independent of the mounting cavity. The mounting cavity is sealed by a cover plate 12. The bottom of the mounting cavity is provided with an atomizing gas hole 102, a plurality of control gas holes 103 and a plurality of atomizing control gas holes 104. The atomizing gas hole 102 is in communication with the atomizing gas cavity. The plurality of control gas holes 103 and the plurality of atomizing control gas holes 104 are in communication with the mounting cavity. The two sides of the distribution block 1 are respectively provided with a socket 106 and a socket 101 in communication with the mounting cavity.

[0057] The integrated block one 7 is located outside the socket 106 and is sealingly connected to the distribution block 1 by screws. The integrated block one 7 is provided with a plurality of mounting holes one in communication with the socket 106.

[0058] The integrated block two 8 is located outside the socket 101 and is sealingly connected to the distribution block 1 by screws. The integrated block two 8 is provided with a plurality of mounting holes two in communication with the socket 101.

[0059] The atomizing gas connector 2 is installed on the distribution block 1 and is in communication with the atomizing gas cavity. The atomizing gas connector 2 is connected to an atomizing gas source of 0.45-0.55 MPa to provide the atomizing gas cavity with atomizing gas of 0.45-0.55 MPa. The atomizing gas source can directly use the factory gas source. The atomizing gas connector 2 is directly connected to the factory gas line by a pipeline. A pressure regulating valve is arranged on the pipeline to regulate the factory gas pressure to 0.45-0.55 MPa.

[0060] The plurality of control gas connectors 3 are connected to a control gas source of 0.3-0.4 MPa to respectively provide the plurality of control gas holes 103 with control gas of 0.3-0.4 MPa. The control gas connector 3 includes a control gas main connector 301, a control gas quick plug 302 and a hose one (not shown). The hose one is accommodated in the mounting cavity and is connected to the control gas main connector 301 and the control gas quick plug 302 at both ends. The control gas main connector 301 of the plurality of control gas connectors 3 is installed in the plurality of mounting holes one. The control gas quick plug 302 of the plurality of control gas connectors 3 is installed in the plurality of control gas holes 103. The hose one of the plurality of control gas connectors 3 is arranged in the mounting cavity. The control gas source can directly use the factory gas source. The control gas connector 3 is directly connected to the factory gas line by a pipeline. A pressure regulating valve is arranged on the pipeline to regulate the factory gas pressure to 0.3-0.4 MPa.

[0061] The plurality of atomization control gas joints 4 are connected to an atomization control gas source of 0.3-0.4 MPa, so as to respectively provide 0.3-0.4 MPa atomization control gas to the atomization control gas holes 104. The atomization control gas joints 4 include an atomization control gas female joint 401, an atomization control gas quick connector 402, and a second hose (not shown in the figure), the two ends of the second hose being respectively connected to the atomization control gas female joint 401 and the atomization control gas quick connector 402. The atomization control gas female joint 401 of the plurality of atomization control gas joints 4 is respectively installed in the plurality of mounting holes two of the integrated block two 8. The atomization control gas quick connector 402 of the plurality of atomization control gas joints 4 is respectively installed in the plurality of atomization control gas holes 104. The second hose of the plurality of atomization control gas joints 4 is arranged in the mounting cavity. The atomization control gas source can directly use the factory gas source, and the atomization control gas joint 4 can be directly connected to the factory gas line through a pipeline. A pressure regulating valve is arranged on the pipeline to adjust the factory gas pressure to 0.3-0.4 MPa.

[0062] In this embodiment, the integrated block one 7 and the integrated block two 8 are arranged, so as to further reduce the pipelines exposed outside. The control gas female joint 301 and the atomization control gas female joint 401 can be directly connected to the control gas source and the atomization control gas source.

[0063] The valve base 5 is located below the distribution block 1 and its top surface is closely attached to the bottom surface of the distribution block 1. A plurality of atomizing air holes two 501, a plurality of control air holes two 502, a plurality of atomizing control air holes two 503 and a plurality of atomizing air outlet holes 504 are formed on the valve base 5. The plurality of atomizing air holes two 501 are respectively communicated with the plurality of atomizing air holes one 102, and a groove is formed at the top of the atomizing air hole two 501 and the atomizing air hole one 102 intersection, and a sealing ring four 9 is arranged in the groove. The sealing ring four 9 is 0.5mm higher than the upper surface of the atomizing air hole two 501, so as to form a surface seal to prevent air leakage at the top of the atomizing air hole two 501 and the atomizing air hole one 102 intersection, and ensure stable compressed air pressure. The plurality of control air holes two 502 are all through the valve seat 609, and the plurality of control air holes two 502 are respectively communicated with the plurality of control air holes one 103. A groove is also formed at the top of the control air hole two 502 and the control air hole one 103 intersection, and a sealing ring four 9 is arranged in the groove. The sealing ring four 9 is 0.5mm higher than the upper surface of the control air hole two 502, so as to form a surface seal to prevent air leakage at the top of the control air hole two 502 and the control air hole one 103 intersection, and ensure stable compressed air pressure. The top end of the plurality of atomizing control air holes two 503 is respectively communicated with the plurality of atomizing control air holes one 104, and a groove is also formed at the top of the atomizing control air hole two 503 and the atomizing control air hole one 104 intersection, and a sealing ring four 9 is arranged in the groove. The sealing ring four 9 is 0.5mm higher than the upper surface of the atomizing control air hole two 503, so as to form a surface seal to prevent air leakage at the top of the atomizing control air hole two 503 and the atomizing control air hole one 104 intersection, and ensure stable compressed air pressure. The valve base 5 is also provided with a channel communicated with the plurality of atomizing air holes two 501, and each atomizing control air hole two 503 has a lower half hole segment communicated with the channel and an upper half hole segment communicated with the atomizing air outlet hole 504. The valve group 6 is installed in the atomizing control air hole two 503, and the valve group 6 can be opened under the drive of the atomizing control air to make the channel communicated with the atomizing air outlet hole 504 through the control atomizing control air hole two 503.

[0064] In combination Figure 8In the embodiment, the valve group 6 comprises a valve cover 601, a valve core 604, a valve spring 608 and a valve seat 609. The valve cover 601 is movably installed at the top end of the upper half hole section, and the valve cover 601 is sleeved with two spiral retaining rings 602 and a sealing ring I 603 between the two spiral retaining rings 602. The sealing ring I 603 realizes the sealing between the valve cover 601 and the upper half hole section, preventing the atomization control gas in the atomization control gas hole I 104 from entering the atomization gas outlet hole 504. The top end of the valve cover 601 is provided with a sealing ring IV 9 which is 0.5 mm higher than the upper surface of the valve cover 601, thereby forming a surface seal to prevent the atomization gas hole II 501 from leaking at the junction with the atomization gas hole I 102, and ensuring stable compressed air pressure. The valve core 604 is located in the lower half hole section and can move up and down in the lower half hole section. The diameter of the valve core 604 is greater than the hole diameter of the upper half hole section, the bottom surface area of the valve core 604 is smaller than the top surface area of the valve cover 601, and the top end of the valve core 604 is fitted with a sealing ring II 605 which is 0.3 mm higher than the top surface of the valve core 604. The upper and lower ends of the valve core 604 are respectively connected with a valve rod I 606 and a valve rod II 607, and the top end of the valve rod I 606 is connected with the valve cover 601. The valve spring 608 is located in the lower half hole section and is sleeved outside the valve rod II 607. When the valve spring 608 is in a natural state, the top surface of the valve core 604 is tightly abutted against the top surface of the lower half hole section under the action of the valve spring 608, thereby blocking the upper half hole section and the lower half hole section. The sealing ring II 605 realizes the sealing between the valve core 604 and the upper half hole section, preventing the atomization gas in the passage from entering the upper half hole section. The valve seat 609 is fixed at the bottom end of the lower half hole section by a clasp spring and its top end is connected with the valve spring 608. The valve seat 609 is sleeved with a sealing ring III 610 which realizes the sealing between the valve seat 609 and the lower half hole section, preventing the atomization gas in the passage from leaking from the lower half hole section. The top end of the valve seat 609 is provided with an avoiding hole 611 for avoiding the valve rod II 607. When atomization is needed, the atomization control gas connector 4 is connected with 0.3-0.4 MPa atomization control gas. The pressure of the atomization control gas will push the valve cover 601 to move downward, and the valve cover 601 will drive the valve core 604 to move downward and press the valve spring 608, thereby making the upper half hole section and the lower half hole section of the atomization control gas hole II 503 communicate, and the atomization gas stored in the passage will flow to the spray head along the atomization gas outlet hole 504 for release agent atomization. After the atomization control gas is disconnected, the valve cover 601 and the valve core 604 are reset under the action of the valve spring 608.

[0065] The control gas hole two 502 of the control gas distribution device for die casting mold spraying in the embodiment is in communication with the nozzle of the spraying tool to enable the nozzle to open under the drive of the control gas, and the atomizing gas outlet hole 504 is also in communication with the nozzle of the spraying device. First, the valve of the 0.45-0.55 Mpa atomizing gas source is opened, the 0.45-0.55 Mpa atomizing gas enters the atomizing gas cavity from the atomizing gas joint 2, and then enters the atomizing gas hole one 102, the atomizing gas hole two 501, and is stored in the channel. The 0.3-0.4 Mpa control gas directly flows to the nozzle of the spraying tool along the control gas hole one 103 and the control gas hole two 502 to enable the nozzle to start and realize the spraying of the release agent. The 0.3-0.4 Mpa atomizing control gas reaches the atomizing control gas hole one, pushes the valve cover 601 to move downward, the valve cover 601 drives the valve core 604 to move downward to press the valve spring 608, so that the upper half hole section of the atomizing control gas hole two 503 is in communication with the lower half hole section, and the atomizing gas stored in the channel flows to the nozzle to atomize the release agent.

[0066] In the embodiment, the plurality of control gas joints 3 and the plurality of atomizing control gas joints 4 can be divided into two groups. The two groups of control gas joints 3 and the two groups of atomizing control gas joints 4 can be connected to the control gas source at the same time, all the control gas holes two 502 can supply control gas, and all the atomizing gas outlet holes 504 can supply atomizing gas. The two groups of control gas joints 3 and the two groups of atomizing control gas joints 4 can also be connected to the control gas source at different times, so that only a part of the control gas holes two 502 can supply control gas and a part of the atomizing gas outlet holes 504 can supply atomizing gas. In this way, the control gas and atomizing gas requirements in different situations can be met.

[0067] The control gas distribution device in the embodiment further comprises a plurality of exhaust joints 11. The plurality of exhaust joints 11 are installed on the valve base 5 and are in communication with the upper half hole sections of the plurality of atomizing control gas holes two 503, respectively. When the atomizing control gas joint 4 is connected to the 0.3-0.4 Mpa atomizing control gas, the pressure of the atomizing control gas pushes the valve cover 601 to move downward, and the atomizing control gas is directly discharged from the plurality of exhaust joints 11. After the atomizing control gas is disconnected, the valve cover 601 and the valve core 604 are reset under the action of the valve spring 608.

[0068] In the embodiment, for the convenience of identifying the connection of the gas circuit and the installation of the valve group 6, gas circuit marks are arranged at the positions of the plurality of control gas holes one 103, the plurality of atomizing control gas holes one 104, the plurality of control gas holes two 502, the plurality of atomizing control gas holes two 503, and the plurality of atomizing gas outlet holes 504. The integrated block one 7 is provided with serial numbers for identifying the plurality of control gas mother joints 301, and the integrated block two 8 is also provided with serial numbers for identifying the plurality of atomizing control gas mother joints 401.

[0069] In the embodiment, the distribution block 1 is provided with a release agent hole one 105, and a plug 10 is detachably connected in the release agent hole one 105. The valve base 5 is provided with a release agent hole two 505, and the release agent hole one 105 and the release agent hole two 505 are communicated. Through the release agent hole one 105 and the release agent hole two 505, the release agent can be provided for the spraying tooling through the distribution device. When in use, the plug 10 is detached, and the release agent hole one 105 is connected with the release agent supply through the pipeline.

[0070] It should be noted that when a component is referred to as being "mounted on" another component, it can be directly on the other component or there can be intervening components. When a component is referred to as being "disposed on" another component, it can be directly disposed on the other component or there can be intervening components. When a component is referred to as being "fixed on" another component, it can be directly fixed on the other component or there can be intervening components.

[0071] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing specific embodiments only and is not intended to be limiting. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0072] Any of the technical features of the above embodiments can be combined, and for the sake of brevity, not all possible combinations are described, however, any combination of the technical features is considered to be within the scope of the present application.

[0073] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A control gas distribution device for spraying coating on die-casting molds, characterized in that, The control gas distribution device includes: The distribution block (1) has an atomizing air chamber. The distribution block (1) has multiple atomizing air holes (102), multiple control air holes (103) and multiple atomizing control air holes (104). The multiple atomizing air holes (102) are all connected to the atomizing air chamber. Atomizing gas connector (2) is installed on the distribution block (1) and communicates with the atomizing gas chamber and is used to supply atomizing gas to the atomizing gas chamber; Multiple control air connectors (3) are connected to multiple control air ports (103) respectively and are used to provide control air to the control air ports (103); Multiple atomization control gas connectors (4) are connected to multiple atomization control gas ports (104) respectively and are used to provide atomization control gas to the atomization control gas ports (104); A valve base (5) is connected to the distribution block (1). The valve base (5) has multiple atomizing air holes (501), multiple control air holes (502), multiple atomizing control air holes (503), and multiple atomizing air outlet holes (504). The multiple atomizing air holes (501) are connected to multiple atomizing air holes (102). The multiple control air holes (502) all penetrate the valve seat (609) and are connected to the multiple control air holes (103). The top ends of the multiple atomizing control air holes (503) are connected to the multiple atomizing control air holes (104). The multiple atomizing air outlet holes (504) and the multiple atomizing air holes (501) are all connected to the multiple atomizing control air holes (503). Multiple valve groups (6) are installed in multiple atomization control air ports (503). Each valve group (6) can be opened under the drive of the atomization control air, so that the atomization control air port (503) is simultaneously connected with the corresponding atomization air port (501) and atomization air outlet (504). The valve base (5) is provided with a channel communicating with multiple atomization air ports (501). The atomization control air port (503) has a lower half-hole section communicating with the channel and an upper half-hole section communicating with the atomization air outlet (504). Each valve group (6) can be opened under the drive of the atomization control air, so that the channel is connected with the atomization air outlet (504) through the atomization control air port (503). The valve group (6) includes: A valve cover (601) is movably mounted on the top of the upper half-hole section. The valve cover (601) is fitted with two spiral retaining rings (602) and a sealing ring (603) located between the two spiral retaining rings (602). The valve core (604) is located in the lower half-hole section and can move up and down in the lower half-hole section. The diameter of the valve core (604) is larger than the diameter of the upper half-hole section and the bottom area of ​​the valve core (604) is smaller than the top area of ​​the valve cover (601). The top of the valve core (604) is equipped with a sealing ring two (605) and the sealing ring two (605) is 0.3mm higher than the top surface of the valve core (604). The upper and lower ends of the valve core (604) are respectively connected to valve stem one (606) and valve stem two (607). The top of valve stem one (606) is connected to the valve cover (601). A valve spring (608), located within the lower half-hole section and fitted outside the valve stem (607), when the valve spring (608) is in its natural state, the valve core (604) blocks the connection between the upper and lower half-hole sections; and The valve seat (609) is fixed at the bottom of the lower half-hole section and its top end is connected to the valve spring (608). The valve seat (609) is fitted with a sealing ring three (610). The valve seat (609) has a clearance hole (611) at its top end to allow the valve stem two (607) to pass.

2. The controlled gas distribution device for spraying coating on die-casting molds according to claim 1, characterized in that, The control air connector (3) includes: A control gas connector (301) is mounted on the distribution block (1); A control air quick-connector (302) is installed in the corresponding control air port (103); and The first hose is connected at both ends to the control air connector (301) and the control air quick connector (302), respectively.

3. The control gas distribution device for spraying coating on die-casting molds according to claim 2, characterized in that, The distribution block (1) also has a mounting cavity, the bottom of which is provided with the plurality of atomizing air holes (102), the plurality of control air holes (103), and the plurality of atomizing control air holes (104), and the hose is housed in the mounting cavity; the distribution block (1) is provided with an insertion port (106) communicating with the mounting cavity; the control air distribution device further includes: Integrated block 1 (7) is located outside socket 1 (106) and is detachably and sealedly connected to distribution block (1). Multiple mounting holes 1 that communicate with socket 1 (106) are provided on integrated block 1 (7), and multiple control gas connectors (301) are respectively installed in multiple mounting holes 1.

4. The controlled gas distribution device for spraying coating on die-casting molds according to claim 3, characterized in that, The atomization control gas connector (4) includes: Atomization control gas connector (401) is installed on the distribution block (1); A quick-connector (402) for atomizing control gas is installed in the corresponding atomizing control gas port (104); and The second hose is housed in the installation cavity and its two ends are connected to the atomization control gas female connector (401) and the atomization control gas quick connector (402) respectively.

5. The controlled gas distribution device for spraying coating on die-casting molds according to claim 4, characterized in that, The distribution block (1) has a second socket (101) communicating with the mounting cavity; the control gas distribution device further includes: Integrated block two (8) is located outside the socket two (101) and is detachably sealed and connected to the distribution block (1). Multiple mounting holes two are provided on integrated block two (8) that communicate with the socket two (101). Multiple atomization control gas connectors (401) are installed in multiple mounting holes two respectively.

6. The controlled gas distribution device for spraying coating on die-casting molds according to claim 1, characterized in that, The top of the atomizing air hole 2 (501), the control air hole 2 (502), and the atomizing control air hole 2 (503) are all equipped with sealing ring 4 (9) that fits and seals against the bottom surface of the distribution block (1).

7. The control gas distribution device for spraying coating on die-casting molds according to claim 1, characterized in that, The control gas distribution device further includes: Multiple exhaust connectors (11) are installed on the valve base (5) and the multiple exhaust connectors (11) are respectively connected to the upper half of the multiple atomization control air holes (503).

8. The control gas distribution device for spraying coating on die-casting molds according to claim 1, characterized in that, The pressure of the atomizing gas source is 0.45-0.55 MPa; And / or, the pressure of the control gas source and the atomizing control gas source is 0.3-0.4 MPa.

9. The controlled gas distribution device for spraying coating on die-casting molds according to claim 3, characterized in that, The distribution block (1) has a mold release agent hole one (105), and the valve base (5) has a through mold release agent hole two (505), which are connected to the mold release agent hole one (105); the control gas distribution device further includes: A plug (10) is detachably inserted into the release agent hole (105); And / or, the control gas distribution device further includes: A cover plate (12) is disposed on top of the distribution block (1) and seals the mounting cavity; and Multiple bolts are connected to the distribution block (1), valve base (5), and cover plate (12).

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