A high-precision die-casting mold for a throttle valve and a die-casting method thereof

Abstract

The present invention discloses a high-precision die-casting mold for a throttle valve and a die-casting method thereof, comprising a movable mold and a mold base arranged below the movable mold, and positioning rods are fixedly installed at the four corners of the upper end of the mold base, and positioning grooves are provided at the four corners of the lower end of the movable mold, and the positioning grooves correspond to the positions of the positioning rods, and the inner sides of the movable mold and the mold base are both provided with casting mold grooves. The high-precision die-casting mold for a throttle valve and a die-casting method thereof, when the movable mold is installed, the positioning groove is embedded in the surface of the positioning rod, and at this time, the positioning rod squeezes the fireproof airbag inside the positioning groove, and the fireproof airbag is squeezed to transport the internal air to the exhaust port through the air duct, and after the air inside the fireproof airbag is transported to the exhaust port through the air duct, the exhaust port blows air to remove impurities from the casting mold groove on the surface of the mold base, thereby blowing away impurities and preventing impurities from affecting the casting accuracy, and can achieve high-precision die-casting and improve the die-casting accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of throttle valve die-casting molds, in particular to a throttle valve high-precision die-casting mold and a die-casting method thereof. Background Art

[0002] High-precision die-casting molds are usually used to produce high-precision parts, such as throttle valves. This mold needs to have a precise design and manufacturing process to ensure the quality and precision of the final product. In the process of manufacturing high-precision throttle valves, high-precision die-casting molds are required to ensure the precision and quality of the product;

[0003] For example, the throttle die-casting mold and its manufacturing method with publication number CN114769557B include a movable mold, a fixed mold and a plurality of core-pulling mechanisms; the plurality of core-pulling mechanisms are respectively connected to the fixed mold core and the movable mold core; the fixed mold is provided with a gate sleeve located below the fixed lining mold, and the movable mold is provided with a diverter cone located below the movable lining mold and matched with the gate sleeve; the fixed lining mold is provided with a plurality of feed channels connecting the diverter cone and the molding cavity; the movable mold and the fixed mold are both provided with exhaust blocks connected to the molding cavity, and the movable lining mold and the fixed lining mold are provided with a plurality of overflow grooves connecting the molding cavity and the exhaust blocks, and the end surface of the movable lining mold facing the fixed mold is evenly provided with mesh gas collecting grooves, and the circumferential surface of the fixed mold core is provided with a plurality of vertical gas collecting grooves. By providing mesh gas collecting grooves on the lining mold and vertical gas collecting grooves on the core, and coordinating the connection between the slag bag and the exhaust block, the exhaust function of the mold is optimized, and the proportion of bad pores caused by air entrainment during the injection process is effectively reduced;

[0004] For example, an electronic throttle body high-efficiency die-casting mold with the publication number CN108672678A includes a fixed mold, a fixed mold sleeve, a movable mold and a movable mold sleeve. The fixed mold is mounted on the fixed mold sleeve, and the movable mold is mounted on the movable mold sleeve. The left and right upper sides of the fixed mold are respectively provided with a left oblique pin, a right oblique pin and an upper oblique pin. The left slider, the right slider and the upper slider of the movable mold are respectively provided with a left pin hole, a right pin hole and an upper pin hole. When the mold is closed, the left and right upper oblique pins of the fixed mold are respectively matched with the pin holes of the left slider, the right slider and the upper slider of the movable mold. A cross runner is provided in the diverter cone, and the cross runner is connected to the molding cavity in a fan-shaped connection. By using a four-pin hole combined mold, the mold is not easy to stick during the die-casting process, and the casting is easy to demold, which reduces the difficulty of cleaning the mold and avoids waste caused by cold molds; the mold has small thermal deformation, which reduces the generation of flying skin of the casting, improves the quality of the product, reduces the difficulty of cleaning the casting in the later stage, reduces the time used for subsequent processing, and also increases the service life of the mold;

[0005] The above-mentioned die-casting mold can reduce the defective proportion of air holes by arranging a mesh air collecting groove on the lining mold, and can increase the service life of the mold by using a four-pin hole combination mold. However, when the die-casting mold is pressed, if demolding is required, the staff needs to remove it manually, which is easy to be difficult to remove because the throttle valve is stuck with the mold. Summary of the invention

[0006] The purpose of the present invention is to provide a high-precision die-casting mold for a throttle valve and a die-casting method thereof, so as to solve the problem in the above background technology that if demolding is required, the staff needs to remove it manually, which is easy to be difficult to remove because the throttle valve is stuck with the mold.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a high-precision die-casting mold for a throttle valve and a die-casting method thereof, comprising a movable mold and a mold base arranged below the movable mold, wherein positioning rods are fixedly installed at the four corners of the upper end of the mold base, positioning grooves are provided at the four corners of the lower end of the movable mold, and the positioning grooves correspond to the positions of the positioning rods, the inner sides of the movable mold and the mold base are both provided with casting mold grooves, and a casting port is provided at the upper end of the movable mold, and the casting port is connected to the casting mold groove;

[0008] The mold base is provided with a top outlet inside, and the top outlet is connected with the casting mold groove, and an auxiliary taking-out mechanism is provided inside the top outlet;

[0009] The left and right sides of the mold base are fixedly mounted with first arc plates, and a rotating rod is rotatably mounted inside the first arc plate, and a high-precision die-casting mechanism is arranged inside the rotating rod;

[0010] Water inlet grooves are provided inside the left and right sides of the movable mold, and a filter plate is fixedly installed inside the water inlet groove, and an anti-blocking mechanism is provided at the lower end of the filter plate.

[0011] Furthermore, the auxiliary removal mechanism is provided with a fixed bin, and the upper end of the fixed bin is fixedly mounted on the lower end of the mold base, and a threaded knob rod is rotatably mounted inside the fixed bin, and the upper end of the threaded knob rod is threadedly connected to an ejection cone rod.

[0012] Furthermore, the ejector cone rod is located inside the ejection outlet, and limit blocks are fixedly installed on the left and right sides of the lower end of the ejector cone rod, a limit slot is opened inside the fixed bin, and the limit block is connected to the limit slot by sliding connection.

[0013] Furthermore, the high-precision die-casting mechanism is provided with a snap-fit ​​arc block, and the middle end of the snap-fit ​​arc block is fixedly mounted on the surface of the rotating rod, and the snap-fit ​​arc block is located inside the first arc plate.

[0014] Furthermore, a second arc plate is fixedly installed on the outer side of the lower end of the movable mold, and a pull rod is installed through the upper end of the second arc plate, and a pressing plate is fixedly installed on the lower end of the pull rod, and a return spring is arranged between the pressing plate and the second arc plate, and the pull rod is nested inside the return spring, and the positions of the first arc plate and the second arc plate correspond to each other.

[0015] Furthermore, a fireproof airbag is arranged inside the positioning groove, and an air guide tube is installed through the outside of the fireproof airbag, and the lower end of the air guide tube is fixedly installed on the upper end of the air outlet, and the output end of the air outlet is aligned with the casting mold groove surface at the middle end of the mold seat.

[0016] Furthermore, the material of the fireproof airbag is elastically arranged, and a one-way air inlet is installed through the upper end of the fireproof airbag, and a one-way valve is arranged inside the one-way air inlet.

[0017] Furthermore, the anti-blocking mechanism is provided with a cooling groove, and the cooling groove is opened inside the mold base, and the upper end of the cooling groove corresponds to the lower end position of the water inlet groove.

[0018] Furthermore, a water wheel plate is rotatably installed inside the movable mold, and the water wheel plate is located on the inner side of the water inlet trough, and a belt is nested on the rear end surface of the water wheel plate, and a disc rod is nested on the upper end of the belt, the rear end of the disc rod is rotatably installed on the movable mold, and a convex rod is fixedly installed on the outer side of the disc rod, and a movable rod is nested on the surface of the convex rod, and the upper end of the movable rod is fixedly installed on the lower end of the filter plate.

[0019] Further, the specific steps are as follows:

[0020] S1: When the die-casting mold is used to perform high-precision die-casting on the throttle valve, the movable mold is installed on the mold base, and the movable mold is embedded along the positioning rod through the positioning groove set at the lower end of the movable mold and the positioning rod set at the upper end of the mold base, so as to achieve the installation of the movable mold and the mold base. At this time, the liquid material used is poured through the casting port, and the material is shaped inside the casting mold groove. After the material is shaped and cooled, it can be taken out to achieve the die-casting of the throttle valve. At the same time, when taking out the die-cast throttle valve, the threaded knob rod at the lower end of the fixed bin is rotated. When the threaded knob rod is rotated, the ejector cone rod threadedly connected to its surface is driven to move. The ejector cone rod rises along the limiting groove through the limiting block. When the ejector cone rod rises, the throttle inside the casting mold groove is ejected along the ejection outlet, and the throttle valve can be directly ejected, which is convenient for the use of the staff. At the same time, there is no need for the staff to directly touch the throttle valve that has just been cast, so as to avoid burns to the staff.

[0021] S2: When installing the movable mold and the mold seat, after the positioning groove inside the movable mold is embedded along the positioning rod on the mold seat, the first arc plate and the second arc plate are positioned correspondingly. After the correspondence, by rotating the rotating rod, when the rotating rod is rotated, it drives the locking arc block, and the locking arc block rotates and embeds into the second arc plate. After the locking arc plate is embedded in the second arc block, due to the inclined edge position of the pressing plate, it can be embedded in the lower end of the pressing plate. At this time, the pressing plate can be pressed by the reset spring to lock and fix the locking arc block, so that the installation between the movable mold and the mold seat is more stable, avoiding displacement during casting, and ensuring the accuracy of casting. If it is necessary to remove the movable mold and the mold seat, the pull rod is pulled to pull the pressing plate up, so that the locking arc block can be rotated and reset by rotating the rotating rod, so that The movable mold is removed. At the same time, when the movable mold is installed, the positioning groove is embedded in the surface of the positioning rod. At this time, the positioning rod squeezes the fireproof airbag inside the positioning groove. The fireproof airbag is squeezed to transport the air inside to the outlet through the air guide pipe. After the air inside the fireproof airbag is transported to the outlet through the air guide pipe, the outlet blows air to the casting mold groove on the surface of the mold seat to remove impurities, thereby blowing out impurities and preventing impurities from affecting the casting accuracy. High-precision die-casting can be achieved and the accuracy of die-casting can be improved. When the movable mold is removed, the fireproof airbag expands and resets due to its own elasticity. When the fireproof airbag rebounds and resets, the fireproof airbag is inhaled through the one-way air inlet. Under the action of the one-way valve inside the one-way air inlet, the fireproof airbag can be re-inflated under the action of the one-way valve inside, so that the inside of the fireproof airbag is filled with air again and can be recycled.

[0022] S3: After the die casting of the die casting mold is completed, it is cooled down. At this time, cooling water is added through the water inlet tank. The cooling water enters the cooling tank inside the mold seat through the water inlet tank. As the cooling water flows inside the cooling tank, the mold is cooled down, so that the cooling effect can be achieved, which is convenient for the throttle valve to be quickly cooled and formed, and the throttle valve can be quickly taken out after being formed. At the same time, when water is introduced through the water inlet tank, the cooling water is filtered through the filter plate, and when the filter plate is filtered, the water entering the water inlet tank drives the water wheel plate to rotate. When the water wheel plate rotates, the disc rod is driven to rotate by the belt. When the disc rod rotates, the movable rod is driven by the convex rod. The movable rod is driven by its own shape. Therefore, when the disc rod rotates, the movable rod drives the filter plate to shake up and down under the action of the convex rod to prevent the filter plate from being blocked, so that the filtering effect can be achieved, and the water inlet tank and the cooling tank are avoided. The cooling water after use can be put into use again, and sewage can be used for cooling, which is convenient for saving resource consumption.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. When the die-casting mold is used to perform high-precision die-casting on the throttle valve, the movable mold is installed on the mold base, and the movable mold is embedded along the positioning rod through the positioning groove provided at the lower end of the movable mold and the positioning rod provided at the upper end of the mold base, so as to realize the installation and positioning of the movable mold and the mold base. At this time, the liquid material used is poured through the casting port, and the material is shaped inside the casting mold groove. After the material is shaped and cooled, it can be taken out to realize the die-casting of the throttle valve;

[0025] Furthermore, when taking out the die-cast throttle valve, the threaded knob rod at the lower end of the fixed bin is rotated, and the ejector cone rod threadedly connected to the surface of the threaded knob rod is driven to move, and the throttle valve inside the casting mold groove is ejected along the ejection outlet, so that the throttle valve can be directly ejected, which is convenient for the staff to use, and at the same time, the staff does not need to directly touch the throttle valve that has just been cast, so as to avoid burns to the staff;

[0026] 2. When installing the movable mold and the mold base, after the positioning groove inside the movable mold is embedded along the positioning rod on the mold base, the first arc plate and the second arc plate are aligned. After alignment, by rotating the rotating rod, the locking arc block is driven when the rotating rod is rotated. At this time, the pressing plate can be pressed by the reset spring to lock and fix the locking arc block, so that the installation between the movable mold and the mold base is more stable, avoiding deviation during casting, and ensuring the casting accuracy;

[0027] Furthermore, when the movable mold is installed, the positioning groove is embedded in the surface of the positioning rod. At this time, the positioning rod squeezes the fireproof airbag inside the positioning groove. The fireproof airbag is squeezed to transport the air inside to the outlet through the air guide pipe. After the air inside the fireproof airbag is transported to the outlet through the air guide pipe, the outlet blows air to the casting mold groove on the surface of the mold seat to remove impurities, thereby blowing away impurities and preventing impurities from affecting the casting accuracy, so as to achieve high-precision die casting and improve the die casting accuracy.

[0028] 3. After the die casting is completed, the die casting mold is cooled. At this time, cooling water is added through the water inlet tank. The cooling water enters the cooling tank inside the mold seat through the water inlet tank. As the cooling water flows inside the cooling tank, the mold is cooled. This can achieve a cooling effect, facilitate the rapid cooling and molding of the throttle valve, and quickly complete the removal of the formed throttle valve;

[0029] Furthermore, when water is taken in through the water inlet trough, the cooling water is filtered through the filter plate, and when the filter plate is filtering, the water entering the water inlet trough drives the water wheel plate to rotate, thereby achieving a filtering effect and avoiding blockage inside the water inlet trough and the cooling trough. The cooling water can be put into use again after use, and sewage can be used for cooling, which is convenient for saving resource consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the mold base of the present invention;

[0032] Figure 3 This is a schematic diagram of the three-dimensional structure of the movable mold of the present invention when viewed from above;

[0033] Figure 4 This is a schematic diagram of the front cross-sectional three-dimensional structure of the mold base of the present invention;

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of the movable mold of the present invention in side section;

[0035] Figure 6 It is a schematic diagram of the three-dimensional structure of the first arc block and the second arc block of the present invention;

[0036] Figure 7 It is a schematic diagram of a three-dimensional structure in which the first arc block and the second arc block are connected and engaged with each other according to the present invention;

[0037] Figure 8 This is a schematic diagram of the three-dimensional structure of the cooling tank of the present invention in front view;

[0038] Fig. 9 It is a schematic diagram of the three-dimensional structure of the fireproof airbag of the present invention in side section;

[0039] Fig.10 It is a schematic diagram of the three-dimensional structure of the movable rod of the present invention.

[0040] In the figure: 1. movable mold; 2. mold base; 3. positioning rod; 4. positioning groove; 5. casting mold groove; 6. casting port; 7. ejector outlet; 8. fixed bin; 9. threaded knob rod; 10. ejector cone rod; 11. limit block; 12. limit groove; 13. first arc plate; 14. rotating rod; 15. engaging arc block; 16. second arc plate; 17. pull rod; 18. pressing plate; 19. reset spring; 20. fireproof airbag; 21. air guide tube; 22. air outlet; 23. one-way air inlet; 24. water inlet trough; 25. cooling trough; 26. filter plate; 27. water wheel plate; 28. belt; 29. ​​disc rod; 30. convex rod; 31. movable rod. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0042] like Figure 1 , Figure 2 and Figure 4 The technical solution shown in the figure, in order to solve the problem of inconvenience in taking out the throttle valve after the die casting is completed, discloses an auxiliary taking-out mechanism: a movable mold 1 and a mold base 2 arranged below the movable mold 1, and positioning rods 3 are fixedly installed at the four corners of the upper end of the mold base 2, and positioning grooves 4 are provided at the four corners of the lower end of the movable mold 1, and the positioning grooves 4 correspond to the positions of the positioning rods 3, the inner sides of the movable mold 1 and the mold base 2 are both provided with casting mold grooves 5, and the upper end of the movable mold 1 is provided with a casting port 6, and the casting port 6 is connected to the casting mold groove 5, and the interior of the mold base 2 is provided with a top outlet 7, and The ejector outlet 7 is communicated with the casting mold groove 5, and an auxiliary removal mechanism is arranged inside the ejector outlet 7, and the auxiliary removal mechanism is provided with a fixed bin 8, and the upper end of the fixed bin 8 is fixedly installed on the lower end of the mold base 2, and a threaded knob rod 9 is rotatably installed inside the fixed bin 8, and the upper end of the threaded knob rod 9 is threadedly connected with an ejector cone rod 10, the ejector cone rod 10 is located inside the ejector outlet 7, and limit blocks 11 are fixedly installed on the left and right sides of the lower end of the ejector cone rod 10, and a limit slot 12 is provided inside the fixed bin 8, and the connection mode of the limit block 11 and the limit slot 12 is a sliding connection;

[0043] In the embodiment, when the die-casting mold is used to perform high-precision die-casting on the throttle valve, the movable mold 1 is installed on the mold base 2, and the movable mold 1 is embedded along the positioning rod 3 through the positioning groove 4 set at the lower end of the movable mold 1 and the positioning rod 3 set at the upper end of the mold base 2, so as to realize the installation of the movable mold 1 and the mold base 2. At this time, the liquid material used is poured through the casting port 6, and the material is shaped inside the casting mold groove 5. After the material is shaped and cooled, it can be taken out to realize the die-casting of the throttle valve. At the same time, when taking out the die-cast throttle valve, the threaded knob rod 9 at the lower end of the fixed bin 8 is rotated. When the threaded knob rod 9 is rotated, the ejector cone rod 10 threadedly connected on its surface is driven to move. The ejector cone rod 10 is limited by the limit block 11 and rises along the limit groove 12. When the ejector cone rod 10 rises, the throttle inside the casting mold groove 5 is ejected along the ejection outlet 7, and the throttle valve can be directly ejected, which is convenient for the use of the staff. At the same time, there is no need for the staff to directly touch the throttle valve that has just been cast, so as to avoid burns to the staff. Embodiment 2

[0044] like Figure 1-Figure 9The technical solution shown in the figure discloses a high-precision die-casting mechanism in order to solve the problem of insufficient precision of the die-casting mold when die-casting the throttle valve: a first arc plate 13 is fixedly installed on the left and right sides of the mold base 2, and a rotating rod 14 is rotatably installed inside the first arc plate 13, and a high-precision die-casting mechanism is arranged on the inner side of the rotating rod 14, and the high-precision die-casting mechanism is provided with a clamping arc block 15, and the middle end of the clamping arc block 15 is fixedly installed on the surface of the rotating rod 14, and the clamping arc block 15 is located inside the first arc plate 13, and a second arc plate 16 is fixedly installed on the outer side of the lower end of the movable mold 1, and a pull rod 17 is installed through the upper end of the second arc plate 16, and the lower end of the pull rod 17 is A pressing plate 18 is fixedly installed, and a return spring 19 is arranged between the pressing plate 18 and the second arc plate 16, and a pull rod 17 is arranged inside the return spring 19. The positions of the first arc plate 13 and the second arc plate 16 correspond to each other. A fireproof airbag 20 is arranged inside the positioning groove 4, and an air guide tube 21 is installed through the outer side of the fireproof airbag 20, and the lower end of the air guide tube 21 is fixedly installed on the upper end of the air outlet 22, and the output end of the air outlet 22 is aligned with the surface of the casting mold groove 5 at the middle end of the mold seat 2. The material of the fireproof airbag 20 is elastically set, and a one-way air inlet 23 is installed through the upper end of the fireproof airbag 20, and a one-way valve is arranged inside the one-way air inlet 23;

[0045] In the embodiment, when the movable mold 1 and the mold base 2 are installed, the positioning groove 4 inside the movable mold 1 is embedded along the positioning rod 3 on the mold base 2, and the first arc plate 13 corresponds to the second arc plate 16. After the correspondence, by rotating the rotating rod 14, when the rotating rod 14 is rotated, the locking arc block 15 is driven, and the locking arc block 15 is rotated and embedded in the second arc plate 16. After the locking arc plate is embedded in the second arc block, due to the inclined edge position of the pressing plate 18, the lower end of the pressing plate 18 can be embedded. At this time, the pressing plate 18 can be pressed by the reset spring 19 to lock and fix the locking arc block 15, so that the installation between the movable mold 1 and the mold base 2 is more stable, avoiding deviation during casting, and ensuring the accuracy of casting. If it is necessary to remove the movable mold 1 and the mold base 2, the pressing plate 18 is pulled up by pulling the pull rod 17, so that the locking arc block 15 can be rotated and reset by rotating the rotating rod 14. The movable mold 1 can be removed. At the same time, when the movable mold 1 is installed, the positioning groove 4 is embedded in the surface of the positioning rod 3. At this time, the positioning rod 3 squeezes the fireproof airbag 20 inside the positioning groove 4. The fireproof airbag 20 is squeezed to transport the internal air to the exhaust port 22 through the air guide pipe 21. After the air inside the fireproof airbag 20 is transported to the exhaust port 22 through the air guide pipe 21, the exhaust port 22 blows and removes impurities to the casting mold groove 5 on the surface of the mold base 2, thereby blowing out impurities and preventing impurities from affecting the casting accuracy. High-precision die-casting can be achieved and the die-casting accuracy can be improved. When the movable mold 1 is removed, the fireproof airbag 20 expands and resets due to its own elasticity. When the fireproof airbag 20 rebounds and resets, the fireproof airbag 20 is inhaled through the one-way air inlet 23. Under the action of the one-way valve inside the one-way air inlet 23, the fireproof airbag 20 can be re-inflated under the action of the one-way valve inside, so that the inside of the fireproof airbag 20 is filled with air again and can be recycled. Embodiment 3

[0046] like Figure 1-Figure 5 , Figure 8-Figure 10 The technical solution shown in the figure discloses an anti-blocking mechanism in order to solve the problem of mold cooling water waste: water inlet grooves 24 are provided inside the left and right sides of the movable mold 1, and a filter plate 26 is fixedly installed inside the water inlet groove 24, and an anti-blocking mechanism is provided at the lower end of the filter plate 26, and the anti-blocking mechanism is provided with a cooling groove 25, and the cooling groove 25 is provided inside the mold base 2, and the upper end of the cooling groove 25 corresponds to the lower end position of the water inlet groove 24, a water wheel plate 27 is rotatably installed inside the movable mold 1, and the water wheel plate 27 is located on the inner side of the water inlet groove 24, and a belt 28 is nested on the rear end surface of the water wheel plate 27, and a disc rod 29 is nested on the upper end of the belt 28, and the rear end of the disc rod 29 is rotatably installed on the movable mold 1, and a convex rod 30 is fixedly installed on the outer side of the disc rod 29, and a movable rod 31 is nested on the surface of the convex rod 30, and the upper end of the movable rod 31 is fixedly installed on the lower end of the filter plate 26;

[0047] In the embodiment, after the die casting of the die casting mold is completed, it is cooled and cooled. At this time, cooling water is added through the water inlet groove 24, and the cooling water enters the cooling groove 25 inside the mold base 2 through the water inlet groove 24. As the cooling water flows inside the cooling groove 25, the mold is cooled, so that the cooling effect can be achieved, which is convenient for the throttle valve to be quickly cooled and formed, and the throttle valve after the formation can be quickly taken out. At the same time, when water is introduced through the water inlet groove 24, the cooling water is filtered through the filter plate 26, and when the filter plate 26 is filtered, the water belt entering the water inlet groove 24 is The moving water wheel plate 27 rotates, and when the water wheel plate 27 rotates, the disc rod 29 is driven to rotate through the belt 28. When the disc rod 29 rotates, the movable rod 31 is driven through the convex rod 30. The movable rod 31 is driven due to its own shape. Therefore, when the disc rod 29 rotates, the movable rod 31 drives the filter plate 26 to shake up and down under the action of the convex rod 30 to prevent the filter plate 26 from being blocked, so that the filtering effect can be achieved, and the blockage of the water inlet tank 24 and the cooling tank 25 can be avoided. The cooling water after use can be put into use again, and sewage can be used for cooling, which is convenient for saving resource consumption.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision die-casting mold for a throttle valve, comprising a movable mold (1) and a mold base (2) arranged below the movable mold (1), wherein positioning rods (3) are fixedly installed at the four corners of the upper end of the mold base (2), positioning grooves (4) are provided at the four corners of the lower end of the movable mold (1), and the positioning grooves (4) correspond to the positions of the positioning rods (3), the inner sides of the movable mold (1) and the mold base (2) are both provided with casting mold grooves (5), and the upper end of the movable mold (1) is provided with a casting port (6), and the casting port (6) is connected to the casting mold groove (5); Features: The mold base (2) is provided with a top outlet (7) inside, the top outlet (7) is connected to the casting mold groove (5), and an auxiliary removal mechanism is provided inside the top outlet (7); The first arc plate (13) is fixedly mounted on the left and right sides of the mold base (2), and a rotating rod (14) is rotatably mounted inside the first arc plate (13), and a high-precision die-casting mechanism is arranged inside the rotating rod (14); The movable mold (1) is provided with water inlet grooves (24) on the left and right sides thereof, and a filter plate (26) is fixedly installed inside the water inlet groove (24), and an anti-blocking mechanism is provided at the lower end of the filter plate (26); The high-precision die-casting mechanism is provided with a snap-fit ​​arc block (15), and the middle end of the snap-fit ​​arc block (15) is fixedly mounted on the surface of the rotating rod (14), and the snap-fit ​​arc block (15) is located inside the first arc plate (13); A second arc plate (16) is fixedly mounted on the outer side of the lower end of the movable mold (1), a pull rod (17) is installed through the upper end of the second arc plate (16), a pressing plate (18) is fixedly mounted on the lower end of the pull rod (17), and a return spring (19) is arranged between the pressing plate (18) and the second arc plate (16), the return spring (19) is nested inside the pull rod (17), and the first arc plate (13) and the second arc plate (16) are located corresponding to each other; A fireproof airbag (20) is arranged inside the positioning groove (4), and an air guide tube (21) is installed through the outer side of the fireproof airbag (20), and the lower end of the air guide tube (21) is fixedly installed on the upper end of the air outlet (22), and the output end of the air outlet (22) is aligned with the surface of the casting mold groove (5) at the middle end of the mold base (2); The anti-blocking mechanism is provided with a cooling groove (25), and the cooling groove (25) is opened inside the mold base (2), and the upper end of the cooling groove (25) corresponds to the lower end position of the water inlet groove (24).

2. A high-precision die-casting mold for a throttle valve according to claim 1, characterized in that: The auxiliary removal mechanism is provided with a fixed bin (8), and the upper end of the fixed bin (8) is fixedly mounted on the lower end of the mold base (2), and a threaded knob rod (9) is rotatably mounted inside the fixed bin (8), and the upper end of the threaded knob rod (9) is threadedly connected to an ejection cone rod (10).

3. A high-precision die-casting mold for a throttle valve according to claim 2, characterized in that: The ejector cone rod (10) is located inside the ejector outlet (7), and limit blocks (11) are fixedly installed on the left and right sides of the lower end of the ejector cone rod (10), and a limit slot (12) is provided inside the fixed bin (8), and the limit block (11) and the limit slot (12) are connected in a sliding manner.

4. The high-precision die-casting mold for a throttle valve according to claim 1, characterized in that: The material of the fireproof airbag (20) is elastic, and a one-way air inlet (23) is installed through the upper end of the fireproof airbag (20), and a one-way valve is arranged inside the one-way air inlet (23).

5. The high-precision die-casting mold for a throttle valve according to claim 1, characterized in that: A water wheel plate (27) is rotatably mounted inside the movable mold (1), and the water wheel plate (27) is located inside the water inlet groove (24), and a belt (28) is nested and mounted on the rear end surface of the water wheel plate (27), and a disc rod (29) is nested and mounted on the upper end of the belt (28), the rear end of the disc rod (29) is rotatably mounted on the movable mold (1), and a convex rod (30) is fixedly mounted on the outer side of the disc rod (29), and a movable rod (31) is nested and mounted on the surface of the convex rod (30), and the upper end of the movable rod (31) is fixedly mounted on the lower end of the filter plate (26).

6. A die-casting method for a high-precision die-casting mold for a throttle valve according to any one of claims 1 to 5, characterized in that: The specific steps are as follows: S1: When the die-casting mold is used to perform high-precision die-casting on the throttle valve, the movable mold (1) is mounted on the mold base (2), and the movable mold (1) is embedded along the positioning rod (3) through the positioning groove (4) provided at the lower end of the movable mold (1) and the positioning rod (3) provided at the upper end of the mold base (2), thereby achieving the installation of the movable mold (1) and the mold base (2). At this time, the liquid material used is poured through the casting port (6), and the material is shaped inside the casting mold groove (5). After the material is shaped and cooled, it can be taken out to achieve the die-casting of the throttle valve. At the same time, after the die-casting is completed, the liquid material is poured into the casting mold groove (5). When the throttle valve is formed, the threaded knob rod (9) at the lower end of the fixed bin (8) is rotated. When the threaded knob rod (9) is rotated, the ejection cone rod (10) connected to the threaded surface thereof is driven to move. The ejection cone rod (10) is limited by the limit block (11) and rises along the limit groove (12). When the ejection cone rod (10) rises, the throttle valve inside the casting mold groove (5) is ejected along the ejection outlet (7). The throttle valve can be directly ejected, which is convenient for the staff to use. At the same time, the staff does not need to directly touch the throttle valve that has just been cast with their hands, thereby avoiding burns to the staff. S2: When installing the movable mold (1) and the mold base (2), the positioning groove (4) inside the movable mold (1) is inserted along the positioning rod (3) on the mold base (2), and the first arc plate (13) and the second arc plate (16) are aligned. After the alignment, the rotating rod (14) is rotated, and when the rotating rod (14) is rotated, the locking arc block (15) is driven, and the locking arc block (15) is rotated and inserted into the second arc plate (16). After the locking arc plate is inserted into the second arc block, due to the inclined edge position of the pressing plate (18), The lower end of the pressing plate (18) can be embedded in the pressing plate (18). At this time, the pressing plate (18) can be pressed by the return spring (19) to fix the locking arc block (15), so that the movable mold (1) and the mold base (2) are installed more stably, avoiding deviation during casting and ensuring the casting accuracy. If it is necessary to remove the movable mold (1) and the mold base (2), the pressing plate (18) is pulled up by pulling the pull rod (17), so that the locking arc block (15) can be rotated and reset by rotating the rotating rod (14). The movable mold (1) can be removed. At the same time, when the movable mold (1) is installed, the positioning groove (4) is embedded in the surface of the positioning rod (3). At this time, the positioning rod (3) squeezes the fireproof airbag (20) inside the positioning groove (4). The fireproof airbag (20) is squeezed to transport the air inside to the exhaust port (22) through the air guide pipe (21). After the air inside the fireproof airbag (20) is transported to the exhaust port (22) through the air guide pipe (21), the exhaust port (22) blows air to the casting mold groove (5) on the surface of the mold base (2). Impurities can be blown away to prevent the impurities from affecting the casting accuracy, thereby achieving high-precision die casting and improving the die casting accuracy. When the movable mold (1) is removed, the fireproof airbag (20) expands and resets due to its own elasticity. When the fireproof airbag (20) rebounds and resets, the fireproof airbag (20) is inflated through the one-way air inlet (23). The one-way air inlet (23) is operated by a one-way valve inside the one-way air inlet (23), so that the fireproof airbag (20) can be re-inflated, so that the inside of the fireproof airbag (20) is filled with air again, and can be recycled. S3: After the die casting of the die casting mold is completed, the die casting mold is cooled and cooled. At this time, cooling water is added through the water inlet groove (24). The cooling water enters the cooling groove (25) inside the mold base (2) through the water inlet groove (24). As the cooling water flows inside the cooling groove (25), the mold is cooled. This can achieve a cooling effect, facilitate rapid cooling and molding of the throttle valve, and quickly complete the removal of the molded throttle valve. At the same time, when water is introduced through the water inlet groove (24), the cooling water is filtered through the filter plate (26). When the filter plate (26) is filtered, the water entering the water inlet groove (24) drives the water wheel plate (27) ) is rotated, and when the water wheel plate (27) is rotated, the disc rod (29) is driven to rotate through the belt (28). When the disc rod (29) is rotated, the movable rod (31) is driven through the protruding rod (30). The movable rod (31) is driven due to its own shape. Therefore, when the disc rod (29) is rotated, the movable rod (31) drives the filter plate (26) to shake up and down under the action of the protruding rod (30) to prevent the filter plate (26) from being blocked, thereby achieving a filtering effect, avoiding blockage inside the water inlet tank (24) and the cooling tank (25), and the cooling water after use can be reused, and sewage can be used for cooling, which is convenient for saving resource consumption.

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