Valve casting with resistance to cracking and method for processing thereof

Abstract

The application discloses a valve casting with anti-cracking and a processing method thereof. The valve casting is produced through the steps of mold manufacturing, material smelting, material pouring and cooling, polishing, coating spraying and valve casting packaging. The valve casting can be rapidly poured and prepared as a whole. In the coating spraying step, PTFE coating and epoxy resin are mixed and sprayed to realize high anti-cracking property of the valve casting, improve the overall service life, and set the pouring equipment, namely the transmission of the screw rod and the moving seat, in the material pouring and cooling step. Flexible lifting pouring adjustment can be realized, and the multifunctional cooling device is matched to realize the conversion of pouring and efficient cooling cooperation. The multifunctional cooling device is further arranged in the pouring equipment to realize large-range spraying cooling and bubble auxiliary vibration elimination of the mold after pouring, so that the efficient cooling forming and the improvement of the forming quality of the valve casting are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve castings, in particular to a valve casting with anti-cracking and a processing method thereof. BACKGROUND

[0002] Valve castings are generally made by pouring sand or metal materials, and it is difficult to achieve heat preservation effect during use, and it is easily affected by weather, especially extremely low temperature freezing weather, and the valve pipeline is prone to freezing and expansion, which causes the valve body to burst and crack, resulting in the valve casting being scrapped.

[0003] Therefore, the valve castings produced today need to be polished and polished after the pouring preparation activity is completed, and the anti-cracking coating is sprayed, so as to realize the anti-cracking protection of the valve casting and improve the service life of the valve casting, but the anti-cracking coating used today has low functionality, and is easily affected by the external environment in a short period of use, thereby affecting the valve casting body.

[0004] Secondly, pouring is an indispensable link in the valve casting process, and through the pouring method, the valve casting can be quickly solidified and formed at one time, and the production efficiency of the valve casting can be improved, but after the valve casting material pouring is completed, cooling activity is needed, and the method used today is generally placing cooling or air cooling, but the position of placing cooling or air cooling is generally fixed, the cooling effect of the valve casting is not sufficient, and at the same time, the position of the mold receiving the pouring material is fixed, so that the air cooling of the mold is not uniform, the overall cooling efficiency of the valve casting is not uniform, and the subsequent valve casting preparation steps are affected. SUMMARY

[0005] The present application aims to provide a valve casting with anti-cracking and a processing method thereof to solve the problems raised in the background.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a valve casting with anti-cracking and a processing method thereof, comprising a valve casting body, the valve casting body comprising a casting body and an anti-cracking coating, and the casting body is externally sprayed with an anti-cracking coating.

[0007] Preferably, the anti-cracking coating is composed of one or more of PTFE paint, polyether sulfone resin, organic silicon resin, epoxy resin, acrylic resin, polyphenylene sulfide resin and polyamide-imide resin.

[0008] Preferably, the processing method of the valve casting with anti-cracking comprises the following steps:

[0009] S1: mold making, according to the valve body production requirements, making the corresponding pouring mold;

[0010] S2: material smelting, through the smelting furnace, the metal material is smelted into a molten state;

[0011] S3: material pouring and cooling, through the pouring equipment, the molten material is poured into the mold made inside, and then cooled, and the cooling forming of the pouring material is carried out;

[0012] S4: polishing, the valve body poured and cooled is polished by polishing equipment;

[0013] S5: coating spraying, after polishing, the anti-cracking spraying of the valve casting outside is carried out by a spraying machine;

[0014] S6: valve casting packaging, the valve casting completed by spraying is combined with the remaining valve parts, and then packaged.

[0015] Preferably, the pouring equipment in step S3 comprises a support, a controller mounted on the upper end of the support, a housing fastened to one side of the upper end of the support, a support shell arranged in the housing, a motor mounted on the upper end of the support shell, a screw rod butted to the lower end of the motor, a moving seat threaded butted to the outer side of the screw rod, a pouring cylinder mounted on the upper end of the moving seat, a pouring head arranged at the lower end of the pouring cylinder, a forming mold arranged opposite to the lower end of the pouring head, and a multifunctional cooling device butted to the front side of the support.

[0016] Preferably, the multifunctional cooling device comprises a protective shell butted to the front side of the support, a servo motor arranged on one side of the inside of the protective shell, a gear mounted on the upper end of the servo motor, a gear ring engaged with the outer side of the gear, a rotating shell arranged on the upper end of the protective shell and connected with the outer side of the gear ring, a receiving net arranged in the inside of the rotating shell, a receiving seat mounted in the inside of the receiving net, a spraying cooling assembly arranged in the inside of the protective shell, and a vibration steering assembly arranged in the inside of the protective shell and connected with the outer side of the spraying cooling assembly.

[0017] Preferably, the spraying cooling assembly comprises a lifting and rotating mechanism arranged in the inside of the protective shell and connected with the output end of the servo motor, a water tank butted to the right side of the lifting and rotating mechanism and arranged at the lower end of the inside of the protective shell, a water pump mounted in the inside of the water tank, a water guide pipe butted to the upper end of the water pump, a multi-way pipe connected with the upper end of the water guide pipe, a spray head butted to the outer side of the multi-way pipe, and a recycling structure mounted on the outer side of the upper end of the water tank.

[0018] Preferably, the lifting and rotating mechanism comprises a driving wheel connected to the outside of the output end of the servo motor, a transmission belt connected to the outside of the driving wheel, a driven wheel connected to the right side of the transmission belt, a first bevel gear arranged on the upper end of the driven wheel, a second bevel gear engaged with the upper end of the first bevel gear, an adapter rod inserted into the middle part of the second bevel gear, a connecting shaft connected to the right side of the adapter rod, an adapter connected to the right side of the connecting shaft, a top rod connected to the outside of the water guide pipe and the right side of the adapter, and a protection box arranged on the upper end of the top rod.

[0019] Preferably, the recycling structure comprises a water receiving cover arranged on the outside of the upper end of the water tank, recycling holes opened on both sides of the outer end of the water tank, a water guide plate arranged inside the water tank, and a recycling pipe connected to the lower end of one side of the water guide plate.

[0020] Preferably, the vibration and steering assembly comprises a connecting ring fastened to the outside of the protection box, a filter screen sleeved to the outside of the protection box, vertical rods inserted into four sides of the filter screen, compression springs arranged on the outside of the vertical rods, fixed blocks arranged on the upper and lower ends of the vertical rods, and an impact rotating structure arranged on the upper end of the filter screen and abutting against the bottom of the receiving seat.

[0021] Preferably, the impact rotating structure comprises a protruding block arranged on the upper end of the filter screen, an impact ring embedded in the inside of the protruding block, a connecting rod inserted into the inside of the side edge of the impact ring, a spring connected to the outside of the connecting rod, an embedded pipe arranged in the middle part of the protruding block, a protruding shaft fastened to one side of the inside of the embedded pipe, and a rotating cylinder mounted in the inside of the embedded pipe and connected to the bottom of the receiving seat, wherein the protruding shaft is connected to the inside of the rotating cylinder.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] The present application realizes the production and preparation of valve castings through the steps of mold making, material smelting, material pouring and cooling, polishing, coating spraying, valve casting packaging, etc. Thus, the valve castings can be quickly poured and prepared as a whole. In the coating spraying step, PTFE coating and epoxy resin are mixed and sprayed to realize high anti-cracking characteristics of the valve castings, improve the overall service life, and set pouring equipment in the material pouring and cooling step to realize efficient pouring and forming reinforcement. In addition, a multifunctional cooling device is arranged in the pouring equipment to realize large-scale spraying cooling and bubble auxiliary vibration elimination of the poured mold, ensuring efficient cooling and forming of the valve castings and improving the forming quality.

[0024] In the material pouring and cooling step, the pouring equipment is arranged, which is driven by the motor and screw to drive the moving seat connected to the outside of the screw. Thus, the pouring cylinder and pouring head arranged on the front side of the moving seat can be flexibly adjusted in the up-down pouring position, which is matched with the multifunctional cooling device connected to the front end of the support to realize flexible pouring and efficient cooling of the forming mold, thereby realizing efficient pouring and forming of the valve castings.

[0025] The multifunctional cooling device is arranged in the pouring equipment, the gear and the gear ring are matched in transmission, the rotation of the receiving net and the receiving seat arranged in the rotating shell is realized, the pouring position of the forming mold is flexibly adjusted, the pouring and forming efficiency of the valve casting is accelerated, the spraying cooling assembly arranged in the protective shell is matched, the up-down reciprocating and reciprocating swinging spraying cooling of the completed pouring forming mold is realized, the cooling and forming efficiency of the material in the forming mold is accelerated, the vibration turning assembly is transmitted during the transmission of the spraying cooling assembly, the vibration bubble elimination activity of the material in the forming mold placed in the receiving seat is realized by the impact vibration of the forming mold, the rotation of the receiving seat is realized, the uniform spraying cooling of the forming mold is realized, and the problem of inconsistent spraying cooling is avoided.

[0026] The gear, the gear ring, the rotating shell, the receiving net and the receiving seat are arranged, the gear is matched with the gear ring in transmission, the rotating shell is transmitted, the rotation of the receiving net and the receiving seat of the rotating shell is realized, the pouring position of the forming mold at multiple places is flexibly adjusted, and the overall pouring and forming quality is improved.

[0027] The spraying cooling assembly is arranged, when the servo motor operates, the transmission of the driving wheel, the transmission belt and the driven wheel is realized, the transmission of the first bevel gear and the second bevel gear is realized, the right side connecting shaft is rotated by the butt joint rod inserted into the second bevel gear, the connecting shaft is matched with the butt joint piece arranged outside the ejector rod in transmission, the up-down reciprocating movement and the reciprocating swinging process of the top of the protective box are realized at the same time, when the water pump arranged in the water tank is matched with the water guide pipe, the multi-way pipe and the spray head in spraying cooling, the wide range spraying cooling of the forming mold placed at each place is realized, and the cooling efficiency of the pouring material in the forming mold is improved.

[0028] The recycling structure is arranged, the sprayed cooling water is dropped into the water receiving cover outside the forming mold after the cooling use is completed, the cooling water is flowed into the water guide plate arranged at the upper end of the water tank through the recycling holes arranged at the upper end of the water tank, the cooling water is flowed into the water tank through the recycling pipe matched with the water guide plate, the recycling and reuse of the cooling water are realized, and the waste of the cooling water is avoided.

[0029] The vibration turning assembly is arranged, that is, when the protection box reciprocates up and down along with the transmission, the connecting ring arranged on the outer side is synchronously moved, so that the connecting ring can extrude the filter screen, the filter screen is elastically moved up and reset by cooperating with the vertical rods and the compression springs arranged on four sides, the impact rotating structure arranged on the upper end of the filter screen cooperates with the impact ring, the connecting rod and the spring arranged in the inside to impact the receiving seat, so that the receiving seat vibrates the placed forming mold, so that the material poured into the forming mold is vibrated to eliminate the pouring bubbles, so as to ensure the pouring and forming quality of the valve casting. The process can be carried out at the same time as the reciprocating and reciprocating spraying process, so as to greatly improve the pouring and forming quality of the valve casting.

[0030] The impact rotating structure is arranged, that is, when the filter screen is extruded to move down, the built-in pipe arranged in the protruding block is synchronously moved down, so that the protruding shaft arranged on one side of the built-in pipe is in transmission with the lower end of the receiving seat and the transmission shaft, that is, in transmission cooperation with the circular groove arranged on the outer side of the transmission shaft, so that when the filter screen is extruded to move down and elastically moves up, the transmission of the protruding shaft and the transmission shaft is realized, the rotation of the receiving seat is driven, so that the forming mold placed in the receiving seat can rotate, so that the overall spraying and cooling effect of the forming mold can be ensured, and the problem of inconsistent spraying and cooling of the forming mold can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present application;

[0032] Figure 2 It is a front view of the internal structure of the present application;

[0033] Figure 3 It is a flow chart of valve casting preparation of the present application;

[0034] Figure 4 It is a structural schematic diagram of the pouring equipment of the present application;

[0035] Figure 5 It is a structural schematic diagram of the multifunctional cooling device of the present application;

[0036] Figure 6 It is a front view of the internal structure of the multifunctional cooling device of the present application;

[0037] Figure 7 It is a front view of the internal structure of the spraying and cooling assembly of the present application;

[0038] Figure 8 It is a front view of the lifting and rotating mechanism of the present application;

[0039] Figure 9 It is a front view of the vibration turning assembly of the present application;

[0040] Figure 10 It is a schematic diagram of the front view of the internal structure of the impact rotating structure of the application.

[0041] Figure 11 It is a schematic diagram of the three-dimensional partial structure of the vibration steering assembly of the application.

[0042] Figure 12 It is a schematic diagram of the vibration steering assembly and the receiving seat of the application.

[0043] In the figure: valve casting body-1, casting body-11, anti-cracking coating-12, support-2, controller-3, shell-4, support shell-5, motor-6, screw-7, moving seat-8, pouring cylinder-9, pouring head-10, forming mold-11, multifunctional cooling device-12, protective shell-121, servo motor-122, gear-123, gear ring-124, rotating shell-125, receiving net-126, receiving seat-127, spraying cooling assembly-128, lifting and rotating mechanism-1281, driving wheel-12811, transmission belt-12812, driven wheel-12813, first bevel gear-12814, second bevel gear-12815, docking rod-12816, connecting shaft-12817, docking piece-12818, jacking rod-12819, protective box-128110, water tank-1282, water pump-1283, water guide pipe-1284, multi-way pipe-1285, spray head-1286, recycling structure-1287, water receiving cover-12871, recycling hole-12872, water guide plate-12873, recycling pipe-12874, vibration steering assembly-129, connecting ring-1291, filter screen-1292, vertical rod-1293, compression spring-1294, fixed block-1295, impact rotating structure-1296, protruding block-12961, impact ring-12962, connecting rod-12963, spring-12964, built-in pipe-12965, protruding shaft-12966, rotating cylinder-12967. DETAILED DESCRIPTION

[0044] In order to further explain the technical solutions of the application, the following specific embodiments are described in detail.

[0045] Please refer to Figures 1-2 The application provides a valve casting with anti-cracking and a processing method thereof, which comprises a valve casting body 1, wherein the valve casting body 1 comprises a casting body 11 and an anti-cracking coating 12, and the casting body 11 is externally sprayed with the anti-cracking coating 12.

[0046] The anti-cracking coating 12 is composed of one or more of PTFE paint, polyether sulfone resin, silicone resin, epoxy resin, acrylic resin, polyphenylene sulfide resin, and polyamide-imide resin. In this application, the anti-cracking coating is made by mixing PTFE paint and epoxy resin, which can form an anti-cracking coating on the outside of the valve casting body 1, thereby enhancing the overall service life of the valve casting body 1 and reducing the cracking and damage of the valve casting body 1 caused by external environment.

[0047] The PTFE paint has excellent chemical stability and wear resistance, which makes it an ideal choice for preventing valve body cracking. The non-adhesion and low friction coefficient of the PTFE coating help reduce the retention of medium inside the valve, thereby reducing corrosion and wear and extending the service life of the valve body.

[0048] The epoxy resin is known for its excellent adhesion and corrosion resistance, which can firmly adhere to the surface of the valve body and form a protective layer to prevent external environment and medium from eroding the valve body. The strength and durability of the epoxy resin further enhance the structural integrity of the valve body.

[0049] As shown in Figure 3 A processing method of a valve casting with anti-cracking, comprising the following steps:

[0050] S1: mold making, according to the shape and size of the valve casting production, a corresponding pouring mold is made;

[0051] S2: material smelting, according to the production ratio, the material is added to the smelting furnace, and the metal material is smelted to convert the material into a molten state;

[0052] S3: material pouring and cooling, the smelted material can be poured into the made mold by pouring equipment and cooled, so that the material is cooled and formed, thereby achieving the pouring and forming of the valve casting;

[0053] S4: polishing, the valve casting after pouring and cooling forming needs to be polished by polishing equipment to avoid the problem of uneven coating thickness caused by many external burrs and pits of the valve casting;

[0054] S5: coating spraying, after polishing, the anti-cracking coating can be sprayed onto the outside of the valve casting by a spraying machine to form an anti-cracking coating on the outside of the valve casting, thereby improving the service life of the valve casting;

[0055] S6: valve casting packaging, the valve casting after spraying is combined with the remaining valve parts and packaged.

[0056] Specifically, through the above preparation steps, the rapid preparation of the anti-cracking valve casting can be realized, and at the same time, cooperating with the sprayed anti-cracking coating 12, the structural strength of the valve casting can be strengthened, and the problem of cracking damage caused by external environment can be avoided.

[0057] Please refer to Figure 4 The pouring device in step S3 in the embodiment includes a support 2 for supporting use, a controller 3 installed on the rear side of the upper end of the support 2, a housing 4 vertically fastened and butted to the front side of the upper end of the support 2, a support shell 5 built into the inside of the housing 4 for supporting and guiding use, a motor 6 installed on the upper end of the support shell 5, a screw rod 7 butted to the lower end of the motor 6, and the screw rod 7 is vertically rotatably connected to the inside of the support shell 5, a moving seat 8 threaded butted to the outside of the screw rod 7, a pouring cylinder 9 installed on the upper end of the moving seat 8, a pouring head 10 provided on the lower end of the pouring cylinder 9, a forming mold 11 provided opposite to the lower end of the pouring head 10, and a multifunctional cooling device 12 butted to the front side of the support 2. In this way, the multifunctional cooling device 12 can be used to realize the spraying cooling of the poured material.

[0058] Specifically, the forming mold 11 is placed on the upper end of the multifunctional cooling device 12, and at the same time, the motor 6 provided on the upper end of the support shell 5 can be operated through the controller 3. In this way, the screw rod 7 butted to the lower end of the motor 6 will rotate to realize the downward transmission of the moving seat 8 threaded butted to the outside. When the moving seat 8 moves downward, the pouring cylinder 9 and the pouring head 10 installed on the front side of the moving seat 8 will move downward. In this way, the pouring head 10 can be close to the opening on the upper end of the forming mold 11 to ensure the accuracy of pouring and reduce the problem of pouring deviation. After the pouring position is adjusted, the molten material can be poured into the inside of the pouring cylinder 9. In this way, cooperating with the pouring head 10 connected to the bottom of the pouring cylinder 9, the molten material can be poured into the inside of the forming mold 11 for subsequent cooling and forming activities.

[0059] Please refer to Figures 5-8The multifunctional cooling device 12 in the embodiment includes a protective shell 121 for internal part protection on the front side of the support 2, a servo motor 122 installed on the left side inside the protective shell 121, a gear 123 installed on the upper end of the servo motor 122, a gear ring 124 engaged with the outside of the gear 123, a rotating shell 125 rotatably connected to the upper end of the protective shell 121 and connected to the outside of the gear ring 124. In this way, the gear 123, the gear ring 124 and the rotating shell 125 can achieve rotary transmission state, so that the rotating shell 125 can rotate flexibly to adjust the pouring position of the forming mold 11. A receiving net 126 is correspondingly installed inside the rotating shell 125, which can assist in recycling and reusing cooling water. A receiving seat 127 is correspondingly installed along the four sides inside the receiving net 126, and the receiving seat 127 is connected with the forming mold 11 inside to realize stable receiving and pouring cooperation of the forming mold 11. A spray cooling assembly 128 is installed inside the protective shell 121, and a vibration steering assembly 129 is provided inside the protective shell 121 and connected to the outside of the spray cooling assembly 128.

[0060] The spray cooling assembly 128 includes a lifting and rotating mechanism 1281 provided inside the protective shell 121 and connected to the output end of the servo motor 122, a water tank 1282 provided inside the protective shell 121 and connected to the lower end of the lifting and rotating mechanism 1281, and a water inlet pipe connected to the right side of the water tank 1282. The water tank 1282 is integrally provided with a cooling module at the lower end inside, which is consistent with the cooling equipment in the prior art. Therefore, the specific structure is not described in detail. In this way, it can be used for rapid replenishment and rapid cooling of cooling water. A water pump 1283 is installed inside the water tank 1282, a water guide pipe 1284 is vertically connected to the upper end of the water pump 1283 for upward transmission and spray cooling of cooling water. The water guide pipe 1284 is provided in an overall telescopic pipe state to ensure stable realization of subsequent up-down reciprocating transmission and reciprocating swing process. A multi-way pipe 1285 is connected to the upper end of the water guide pipe 1284, and the upper end of the water guide pipe 1284 is rotatably connected to the bottom of the multi-way pipe 1285. Spray heads 1286 are provided for multidirectional cooling spray along the multi-way pipe 1285. A recovery structure 1287 is provided on the outside of the upper end of the water tank 1282 to realize auxiliary recovery of cooling water.

[0061] The lifting rotating mechanism 1281 comprises a driving wheel 12811 connected to the outside of the output end of the servo motor 122, a transmission belt 12812 connected to the outside of the driving wheel 12811, a driven wheel 12813 connected to the right side of the transmission belt 12812, a first bevel gear 12814 connected to the upper end of the driven wheel 12813, a second bevel gear 12815 connected to the upper end of the first bevel gear 12814, and a connecting rod 12816 transversely movably inserted into the middle part of the second bevel gear 12815, wherein transverse grooves are formed in the middle part of the front and back sides of the connecting rod 12816, so that the connecting rod 12816 can be in a reciprocating transverse transmission state during rotation of the second bevel gear 12815, and the right side of the connecting rod 12816 is movably inserted into the left side of the water tank 1282, a connecting shaft 12817 is connected to the right side of the connecting rod 12816, and the right end of the connecting shaft 12817 is integrally provided in the form of a smooth ball, a connecting piece 12818 is connected to the right side of the smooth ball of the connecting shaft 12817, a top rod 12819 is movably sleeved on the outside of the water guide pipe 1284 and connected to the right side of the connecting piece 12818, a protection box 128110 is connected to the upper end of the top rod 12819 and can realize internal part protection cooperation, and the protection box 128110 is movably inserted into the middle part of the receiving net 126.

[0062] The recovery structure 1287 comprises a water receiving cover 12871 connected to the outside of the upper end of the water tank 1282, wherein the water receiving cover 12871 is integrally provided in the form of an upper large lower small opening, recovery holes 12872 are symmetrically formed on the left and right sides of the outer end of the water tank 1282 for cooling water recovery transmission, a water guide plate 12873 is built-in on the inner upper end of the water tank 1282 and opposite to the left and right sides of the recovery holes 12872, and a recovery pipe 12874 is vertically connected to the right lower end of the water guide plate 12873.

[0063] Specifically, in order to realize pouring of multiple forming molds 11, four forming molds 11 can be placed in the receiving seats 127 on the four sides of the receiving net 126, so as to realize stable placement and pouring preparation of the four forming molds 11, when the pouring of one forming mold 11 is completed, the servo motor 122 provided on one side of the protection shell 121 is driven to rotate the top connecting gear 123, so that the gear 123 is engaged with the gear ring 124 provided on the lower end of the rotating shell 125, thereby rotating the rotating shell 125, and the next forming mold 11 is rotated to the lower position of the pouring head 10 for pouring, so as to realize flexible placement and pouring of multiple forming molds 11 and greatly improve the pouring efficiency of valve castings.

[0064] In the process of driving the servo motor 122, not only the rotation of the gear 123 can be realized, but also the rotation of the driving wheel 12811 can be realized. The rotating driving wheel 12811 can cooperate with the externally connected transmission belt 12812 to realize the synchronous rotation of the right side connected driven wheel 12813. With the rotation of the driven wheel 12813, the first bevel gear 12814 and the second bevel gear 12815 arranged on the upper end of the driven wheel 12813 can be engaged and driven. In this way, the butt joint rod 12816 inserted in the middle part of the second bevel gear 12815 will rotate quickly to drive the right side connected shaft 12817. The butt joint piece 12818 connected with the right side smooth ball of the connecting shaft 12817 can rotate and drive the top rod 12819 to realize the up-down reciprocating movement and the reciprocating swing state. The protective box 128110 connected to the upper end of the top rod 12819 can realize the synchronous up-down reciprocating movement and the reciprocating swing. When the multiple forming molds 11 are externally poured and need to be cooled, the water pump 1283 arranged at the lower end of the water tank 1282 can be driven to make the cooling water in the water tank 1282 enter the water guide pipe 1284, and then enter the multi-way pipe 1285 connected to the upper end through the water guide pipe 1284. With the shunting effect of the multi-way pipe 1285, the cooling water can be sprayed from the nozzles 1286 connected to the outside of the multi-way pipe 1285 to directly spray the cooling water to the outside of the forming mold 11 for spraying and cooling. With the driving of the connecting shaft 12817 and the butt joint piece 12818, the top rod 12819 can realize the up-down reciprocating movement and the reciprocating swing to realize the up-down reciprocating movement and the reciprocating swing of the multi-way pipe 1285 and the nozzle 1286, so as to greatly strengthen the spraying and cooling range and efficiency, and make the cooling water efficiently spray and cool the multiple forming molds 11 to accelerate the rapid solidification of the poured material in the multiple forming molds 11.

[0065] Secondly, since the water guide pipe 1284 is arranged in the form of an expansion pipe, when the protective box 128110 realizes the up-down reciprocating movement and the reciprocating swing of the multi-way pipe 1285 and the nozzle 1286, the water guide pipe 1284 can be expanded and contracted to avoid affecting the up-down reciprocating movement and the reciprocating swing.

[0066] Meanwhile, when the cooling water is sprayed outside the plurality of molding molds 11 for cooling, the cooled cooling water will drip onto the upper end of the receiving net 126 outside the plurality of molding molds 11, and the cooling water can flow into the water receiving cover 12871 inside the lower end of the receiving net 126, and can be guided downward inside the water receiving cover 12871, so that the cooling water can be moved to the recycling holes 12872 opened on the left and right sides of the upper end of the water tank 1282, and the cooling water can enter the inside of the water tank 1282 through the recycling holes 12872 on both sides. The upper end, finally, through the water guide plate 12873 provided at the upper end of the inside of the water tank 1282, can receive the inclined transmission, so that the cooling water can flow into the inside of the recycling pipe 12874, and can be recycled to the lower end of the inside of the water tank 1282 along the recycling pipe 12874, to realize the use of spraying cooling again. In this way, the cooling water can be recycled and reused, avoiding waste of cooling water. Secondly, because the recycling distance formed by the water receiving cover 12871, the recycling hole 12872, the water guide plate 12873 and the recycling pipe 12874 is long, the cooling water can be cooled during the recycling process. In this way, when it is recombined in the inside of the water tank 1282 and sprayed again for cooling, the cooling process time is shortened and the use efficiency is improved.

[0067] Please refer to Figures 9-12 The vibration steering assembly 129 in the embodiment includes a connecting ring 1291 tightly butted to the outside of the protection box 128110 to realize downward extrusion transmission, a filter screen 1292 sleeved to the outside of the protection box 128110 for cooling water flow and up-down movement, vertical rods 1293 inserted and arranged vertically on four sides of the filter screen 1292, compression springs 1294 provided at the outer ends of the four vertical rods 1293 to provide rebound power support, fixed blocks 1295 symmetrically and tightly butted to the upper and lower ends of the vertical rods 1293, both of which are connected with the inside of the lower end of the rotating shell 125, and impact rotating structures 1296 arranged on the four sides of the upper end of the filter screen 1292 and abutting against the bottom of the four receiving seats 127. In this way, when the lifting and rotating mechanism 1281 realizes lifting and rotating movement, the impact rotating structure 1296 can be synchronously driven to realize simultaneous vibration defoaming and intermittent rotating movement of the four molding molds 11.

[0068] The impact rotating structure 1296 includes protrusions 12961 mounted on the four sides of the upper end of the filter screen 1292, impact rings 12962 movably embedded in the protrusions 12961 for eliminating bubbles by impact vibration, connecting rods 12963 vertically inserted along the four sides of the impact rings 12962, springs 12964 correspondingly mounted on the outer ends of the four connecting rods 12963 and connected with the bottoms of the four sides of the impact rings 12962, built-in pipes 12965 butted in the middle of the protrusions 12961, convex shafts 12966 transversely and tightly connected to one side of the built-in pipes 12965 for rotary transmission, rotating cylinders 12967 built in the built-in pipes 12965 and connected with the bottom of the receiving seat 127, and the outer side of the rotating cylinder 12967 is provided with a plurality of continuous curved circulation grooves, and the convex shafts 12966 are connected with the circulation grooves on the outer side of the rotating cylinder 12967.

[0069] Specifically, when the protection box 128110 moves up and down reciprocatingly, it can synchronously drive the connected ring 1291 on the outside, so that when the connected ring 1291 moves downward, it can press the filter screen 1292 sleeved on the outer side of the lower end of the protection box 128110, so that the filter screen 1292 can move downward stably through the four vertical rods 1293 inserted thereinto, and under the elastic support of the compression springs 1294 butted on the outer ends of the four vertical rods 1293, the filter screen 1292 can be pushed upward and reset elastically as a whole when the connected ring 1291 moves upward with the protection box 128110, so that the impact rotating structure 1296 mounted on the four sides of the upper end of the filter screen 1292 can impact and vibrate the receiving seat 127, that is, the protrusions 12961 in the impact rotating structure 1296 move quickly to the bottom of the receiving seat 127 when the filter screen 1292 is reset elastically by the elastic force of the four compression springs 1294, so that the impact rings 12962 butted in the upper end of the protrusions 12961 can quickly impact the receiving seat 127, so that the receiving seat 127 vibrates under the impact, and the material poured in the vibrating forming mold 11 is vibrated, so that the material poured in the vibrating forming mold 11 can be eliminated bubbles, so as to avoid the generation of pouring bubbles, which can cause many pits on the outside of the valve casting formed subsequently, thereby improving the overall pouring and forming quality of the valve casting and reducing the generation of the pit problem on the outside

[0070] At the same time, when the impact rings 12962 are driven to impact, the connecting rods 12963 and the springs 12964 provided on the four sides of the impact rings 12962 can avoid excessive impact force, stabilize the simultaneous impact and vibration of the multiple vibrating forming molds 11, ensure the synchronization of the vibration bubble elimination of the multiple vibrating forming molds 11, and avoid the omission problem;

[0071] Secondly, when the connecting ring 1291 extrudes the filter screen 1292, the built-in pipe 12965 inside the protruding block 12961 will be synchronously lowered, so that the protruding shaft 12966 on one side of the built-in pipe 12965 will drive the rotating drum 12967 on the bottom of the receiving seat 127, that is, the protruding shaft 12966 and the rotating drum 12967 outside the multiple continuous curved circulation grooves will be driven, so that when the filter screen 1292 is extruded downward by the connecting ring 1291 and is reset by the elastic force of the four side compression springs 1294, the protruding shaft 12966 can cooperate with the multiple continuous curved circulation grooves outside the rotating drum 12967 to realize the intermittent rotation of the receiving seat 127 as a whole, so that the multiple shaped molds 11 placed inside the receiving seat 127 and rotating with the rotating receiving screen 126 will rotate with the rotating receiving seat 127, so that the shaped molds 11 can be fully contacted with the cooling water sprayed by the spray head 1286, and the uniform spraying and cooling of the shaped molds 11 can be realized, so that the fixed placement of the shaped molds 11 can be avoided, the uneven cooling of the shaped molds 11 can be avoided, the materials poured into the shaped molds 11 can be cooled uniformly, and the subsequent processing and preparation efficiency can be affected.

[0072] The above only describes the preferred examples of the present application and is not used to limit the present application. Although the present application is described in detail with reference to the foregoing examples, those skilled in the art can still modify the technical solutions recorded in the foregoing examples or replace some technical features with equivalent ones. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for machining a crack-resistant valve casting, characterized in that, For preparing a valve casting with crack resistance, the valve casting includes a valve casting body (1), the valve casting body (1) includes a casting body and a crack resistance coating, and the casting body is coated with a crack resistance coating on the outside; The processing method includes the following steps: S1: Mold making: Based on the production requirements of valve casting, corresponding casting molds are made; S2: Material smelting, which involves melting metal materials into a molten state using a smelting furnace; S3: Material casting and cooling. Molten material is poured into the mold using casting equipment and then cooled to form the mold. S4: Grinding and polishing. The valve casting body, which has been cast and cooled, is ground and polished by grinding and polishing equipment to remove external burrs. S5: Coating spraying. After grinding and polishing, the valve casting is coated with an anti-cracking spraying machine. S6: Valve casting packaging, which involves combining the painted valve castings with the remaining valve parts and packaging them accordingly; The pouring equipment in step S3 includes a support (2) and a multi-functional cooling device (12) connected to the front side of the support (2). The multi-functional cooling device (12) includes a protective shell (121) connected to the front side of the bracket (2), a servo motor (122) located inside the protective shell (121) on one side, a gear (123) installed on the upper end of the servo motor (122), a gear ring (124) meshing with the outside of the gear (123), a rotating shell (125) located on the upper end of the protective shell (121) and connected to the outside of the gear ring (124), a receiving net (126) installed inside the rotating shell (125), a receiving seat (127) installed inside the receiving net (126), a spray cooling assembly (128) located inside the protective shell (121), and a vibration steering assembly (129) located inside the protective shell (121) and connected to the outside of the spray cooling assembly (128). The spray cooling assembly (128) includes a lifting and rotating mechanism (1281) located inside the protective shell (121) and connected to the output end of the servo motor (122), a water tank (1282) located on the right side of the lifting and rotating mechanism (1281) and located at the lower end of the protective shell (121), a water pump (1283) installed inside the water tank (1282), a water guide pipe (1284) connected to the upper end of the water pump (1283), a multi-port pipe (1285) connected to the upper end of the water guide pipe (1284), a nozzle (1286) connected to the outside of the multi-port pipe (1285), and a recovery structure (1287) installed on the outer side of the upper end of the water tank (1282).

2. The processing method for a crack-resistant valve casting according to claim 1, characterized in that: The casting equipment in step S3 also includes a controller (3) installed on the upper end of the support (2), a housing (4) fastened to one side of the upper end of the support (2), a support shell (5) located inside the housing (4), a motor (6) installed on the upper end of the support shell (5), a screw (7) connected to the lower end of the motor (6), a movable seat (8) threaded to the outside of the screw (7), a casting cylinder (9) installed on the upper end of the movable seat (8), a casting head (10) located at the lower end of the casting cylinder (9), and a molding mold (11) located at the lower end of the casting head (10).

3. The processing method for a crack-resistant valve casting according to claim 1, characterized in that: The lifting and rotating mechanism (1281) includes a drive wheel (12811) connected to the outer side of the output end of the servo motor (122), a transmission belt (12812) connected to the outer side of the drive wheel (12811), a driven wheel (12813) connected to the right side of the transmission belt (12812), a first bevel gear (12814) located on the upper end of the driven wheel (12813), and a second bevel gear (12814) meshing with the upper end of the first bevel gear (12814). 815), a connecting rod (12816) inserted into the middle of the second bevel gear (12815), a connecting shaft (12817) connected to the right side of the connecting rod (12816), a connecting piece (12818) connected to the right side of the connecting shaft (12817), a top rod (12819) connected to the outside of the water pipe (1284) and connected to the right side of the connecting piece (12818), and a protective box (128110) located at the upper end of the top rod (12819).

4. The processing method for a crack-resistant valve casting according to claim 1, characterized in that: The recycling structure (1287) includes a water receiving cover (12871) installed on the outer side of the upper end of the water tank (1282), recycling holes (12872) opened on both sides of the outer end of the water tank (1282), a water guide plate (12873) built into the water tank (1282), and a recycling pipe (12874) connected to the lower end of one side of the water guide plate (12873).

5. The processing method for a crack-resistant valve casting according to claim 1, characterized in that: The vibration steering assembly (129) includes a connecting ring (1291) fastened to the outside of the protective box (128110), a filter screen (1292) sleeved on the outside of the protective box (128110), vertical rods (1293) inserted into the four sides of the filter screen (1292), a compression spring (1294) provided on the outside of the vertical rod (1293), a fixing block (1295) installed at the upper and lower ends of the vertical rod (1293), and an impact rotation structure (1296) provided at the upper end of the filter screen (1292) and abutting against the bottom of the receiving seat (127).

6. The processing method for a crack-resistant valve casting according to claim 5, characterized in that: The impact rotation structure (1296) includes a protrusion (12961) at the upper end of the filter screen (1292), an impact ring (12962) embedded inside the protrusion (12961), a connecting rod (12963) inserted into the side of the impact ring (12962), a spring (12964) connected to the outside of the connecting rod (12963), an inner tube (12965) in the middle of the protrusion (12961), a convex shaft (12966) fastened to one side inside the inner tube (12965), and a rotating cylinder (12967) installed inside the inner tube (12965) and connected to the bottom of the receiving seat (127). The convex shaft (12966) is connected to the inside of the rotating cylinder (12967).

7. The method for processing a crack-resistant valve casting according to claim 1, characterized in that: The anti-cracking coating is composed of one or more of the following: PTFE coating, polyethersulfone resin, silicone resin, epoxy resin, acrylic resin, polyphenylene sulfide resin, and polyamide-imide resin.

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