Die casting device for boiler accessory production

Abstract

The invention belongs to the technical field of boiler accessory production, and discloses a pressure casting device for boiler accessory production, which comprises a base, a water cavity is formed in the base, two side columns are fixedly connected to the upper part of the base, and two hydraulic telescopic rods I and a hydraulic telescopic rod II are fixedly connected to the middle parts of the side columns; the inner side of the second hydraulic telescopic rod is fixedly connected with an inner mold. The mold shell and the inner molds are separately arranged, after a proper amount of metal slurry is injected between the two inner molds, a gap is formed between the mold shell and the inner molds, water in the water cavity can be sucked into the mold shell and the inner molds, and therefore a boiler accessory to be formed between the two inner molds is cooled; the mold shell and the inner mold can be separated, cleaning is convenient, and therefore the problems that sediment is prone to being accumulated in an existing mold cooling channel, blocking is prone to being caused, cooling efficiency is reduced, and mold performance is weakened are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of boiler parts production, and in particular relates to a die-casting device for boiler parts production. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. The boiler contains various accessories, and in the production process of boiler accessories, a die-casting device is needed. The die-casting device is a series of industrial casting machines that hydraulically injects molten metal into a mold under pressure, cools it, and then die-casts it into shape. After the mold is opened, a solid metal casting is obtained. It was originally used for die-casting lead type. With the progress of science and technology and industrial production, especially with the development of industries such as automobiles, motorcycles and boiler accessories, die-casting technology has achieved extremely rapid development.

[0003] When using existing die-casting devices, in order to help the castings to be smoothly separated from the mold, protect the mold surface from damage, and improve the surface quality of the castings, a proper amount of release agent drops are often sprayed on the surface of the mold through a release agent atomizer. However, the release agent contains certain toxic substances and evaporates in the air, which not only causes waste, but also harms the human body and pollutes the environment. Secondly, in order to quickly cool the castings, cooling channels are often opened in the mold. After long-term use, sediments are easily accumulated inside the cooling channels, which are easy to cause blockage, thereby reducing the cooling efficiency and weakening the mold performance. Summary of the invention

[0004] The object of the present invention is to provide a die-casting device for producing boiler parts to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: a die-casting device for producing boiler accessories, comprising a base, a water cavity is opened inside the base, two side columns are fixedly connected to the top of the base, two hydraulic telescopic rods 1 and a hydraulic telescopic rod 2 are fixedly connected to the middle of the side column, the inner side of the hydraulic telescopic rod 2 is fixedly connected to an inner mold, the outer side of the inner mold is fixedly connected to a rectangular frame, the inner sides of the two hydraulic telescopic rods 1 are fixedly connected to an outer mold group, a cleaning mechanism is arranged on the inner side of the side column, an air shell is fixedly connected to the upper surface of the side column, a connecting plate is fixedly connected between the two air shells, a release agent atomizer is fixedly connected to the upper surface of the connecting plate, a connecting pipe is connected to the lower side of the release agent atomizer, a control valve is fixedly installed on the bottom end of the connecting pipe, an elastic air bag is fixedly installed in the middle of the connecting pipe, a grouting device is fixedly installed on the back side of the base, and a grouting pipe is connected to the front side of the grouting device.

[0006] Preferably, the outer module includes a mold shell, and two water holes and one air hole are provided on the outer side of the mold shell, a water valve is fixedly installed inside the water hole, the outer side of the rear water valve is connected to a water inlet pipe, the outer side of the front water valve is connected to a return pipe, an air valve is fixedly installed inside the air hole, and the outer side of the air valve is connected to an air collecting pipe.

[0007] Preferably, the cleaning mechanism includes a driving motor, the output end of the driving motor is fixedly connected to a threaded rod, the middle part of the threaded rod is threadedly connected to a rear connecting rod, the inner end of the rear connecting rod is rotatably connected to an exhaust pipe, the back side of the exhaust pipe is rotatably connected to an intake pipe, a plurality of exhaust nozzles are fixedly installed on the middle part of the intake pipe, the front end of the exhaust pipe is rotatably installed with a front connecting rod, the front side of the front connecting rod is fixedly connected to a mounting shell, two electromagnets are fixedly installed inside the mounting shell, and a permanent magnet fixedly connected to the exhaust pipe is provided between the two electromagnets.

[0008] Preferably, sliding grooves are provided on the front and rear faces of the two side columns, the two side columns are symmetrically arranged, and the upper end of the grouting pipe is located directly below the two inner mold grouting ports.

[0009] Preferably, the mold shell is fixedly connected to a hydraulic telescopic rod, the air hole is above the two water holes, the water inlet pipe and the water return pipe are both connected to the water cavity, and the air collecting pipe is connected to the air shell.

[0010] Preferably, the drive motor is fixedly connected to the side column, the threaded rod is rotatably connected to the side column, the rear connecting rod and the front connecting rod are slidably connected to the sliding grooves on the corresponding sides, and the upper end of the air intake pipe is connected to the air casing.

[0011] Preferably, the elastic airbag is made of elastic material, the water inlet pipe, water return pipe, air collecting pipe and air inlet pipe are all hoses, and the water cavity is filled with a proper amount of cooling water.

[0012] Preferably, a groove is provided on the inner side of the mold shell, and the groove is adapted to the inner mold and the rectangular frame.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention sets the mold shell and the inner mold separately. After injecting a proper amount of metal slurry between the two inner molds, the hydraulic telescopic rod is slowly shortened, and the two mold shells move away from the inner molds, so that a gap appears between the mold shell and the inner mold. Since the rear water valve is in an open state, the water in the water cavity will be sucked into the mold shell and the inner mold, thereby cooling the boiler parts to be formed between the two inner molds. When there is sediment between the mold shell and the inner mold, the mold shell and the inner mold can be separated for easy cleaning, thereby solving the problem that sediments are easily accumulated inside the cooling channel of the existing mold, which is easy to cause blockage, thereby reducing the cooling efficiency and weakening the mold performance. Moreover, compared with the existing mold, the structure of the mold shell and the inner mold is relatively simple, and the processing difficulty is relatively low.

[0014] 2. The present invention drives the threaded rod to rotate by driving the motor, thereby driving the rear connecting rod, the exhaust pipe, and the front connecting rod to move upward. When the exhaust pipe is about to contact the inner mold, the exhaust nozzle is opened, and the water vapor generated by the cooling of the metal slurry will enter the exhaust pipe from the intake pipe and finally be ejected from the exhaust nozzle. At the same time, the two electromagnets are energized and cooperate with each other, so that the permanent magnet will drive the rear connecting rod to perform a uniform reciprocating angle deflection, so that the water vapor ejected from the exhaust nozzle cleans the inner side of the inner mold, thereby extending the service life of the mold and ensuring the quality of the casting and the stability of production.

[0015] 3. The present invention opens the control valve and the release agent atomizer works. After the release agent is atomized, an appropriate amount of release agent droplets are injected into the interior of the two inner molds through the connecting pipe. The release agent droplets will form a liquid film on the inner wall of the inner mold. Then the grouting device works to inject the molten metal slurry into the interior of the two inner molds through the grouting pipe. During the metal slurry injection process, excess release agent droplets and gas inside the two inner molds will enter the connecting pipe and the interior of the elastic airbag, so that the excess release agent droplets are stored and used for the next release agent spraying, thereby solving the problem that the existing release agent droplets will evaporate into the air, which not only causes waste, but also causes harm to the human body and pollutes the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the appearance structure of the present invention; Figure 2 It is a schematic diagram of the threaded rod of the present invention; Figure 3 A half-section schematic diagram of the base of the present invention; Figure 4 For the present invention Figure 3 The enlarged schematic diagram at A in the middle; Figure 5 A half-section schematic diagram of a mold shell of the present invention; Figure 6 For the present invention Figure 5The enlarged schematic diagram of point B in the middle; Figure 7 It is a schematic diagram of the outer module structure of the present invention.

[0017] In the figure: 1. base; 2. water cavity; 3. side column; 4. hydraulic telescopic rod 1; 5. hydraulic telescopic rod 2; 6. inner mold; 7. rectangular frame; 8. outer mold group; 81. mold shell; 82. water hole; 83. air hole; 84. water valve; 85. water inlet pipe; 86. water return pipe; 87. air valve; 88. air collecting pipe; 9. cleaning mechanism; 91. drive motor; 92. threaded rod; 93. rear connecting rod; 94. exhaust pipe; 95. air inlet pipe; 96. exhaust nozzle; 97. front connecting rod; 98. mounting shell; 99. electromagnet; 910. permanent magnet; 10. air shell; 11. connecting plate; 12. release agent atomizer; 13. connecting pipe; 14. control valve; 15. elastic air bag; 16. grouting device; 17. grouting pipe. DETAILED DESCRIPTION

[0018] 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.

[0019] like Figures 1 to 7As shown, the embodiment of the present invention provides a die-casting device for producing boiler parts, including a base 1, a water cavity 2 is opened inside the base 1, two side columns 3 are fixedly connected to the top of the base 1, two hydraulic telescopic rods 1 4 and a hydraulic telescopic rod 2 5 are fixedly connected to the middle of the side column 3, an inner mold 6 is fixedly connected to the inner side of the hydraulic telescopic rod 2 5, a rectangular frame 7 is fixedly connected to the outer side of the inner mold 6, an outer mold group 8 is fixedly connected to the inner side of the two hydraulic telescopic rods 1 4, a cleaning mechanism 9 is arranged on the inner side of the side column 3, and a cleaning mechanism 9 is arranged on the inner side of the side column 3. The upper surface of the column 3 is fixedly connected with an air shell 10, a connecting plate 11 is fixedly connected between the two air shells 10, a release agent atomizer 12 is fixedly connected to the upper surface of the connecting plate 11, a connecting pipe 13 is connected below the release agent atomizer 12, a control valve 14 is fixedly installed at the bottom end of the connecting pipe 13, an elastic air bag 15 is fixedly installed in the middle of the connecting pipe 13, a grouting device 16 is fixedly installed on the back of the base 1, and a grouting pipe 17 is connected to the front of the grouting device 16. The outer module 8 includes a mold shell 81, and the outer side of the mold shell 81 There are two water holes 82 and one air hole 83, a water valve 84 is fixedly installed inside the water hole 82, a water inlet pipe 85 is connected to the outside of the rear water valve 84, a water return pipe 86 is connected to the outside of the front water valve 84, an air valve 87 is fixedly installed inside the air hole 83, and an air collecting pipe 88 is connected to the outside of the air valve 87. Its function is that after the mold shell 81 and the inner mold 6 are separately set, a proper amount of metal slurry is injected between the two inner molds 6, and the hydraulic telescopic rod 4 is slowly shortened, and the two mold shells 81 are away from the inner mold 6. The mold shell 81 and the inner mold 6 move, so that there is a gap between the mold shell 81 and the inner mold 6. However, since the rear water valve 84 is in an open state, the water in the water cavity 2 will be sucked into the mold shell 81 and the inner mold 6, thereby cooling the boiler parts to be formed between the two inner molds 6. When there is sediment between the mold shell 81 and the inner mold 6, the mold shell 81 and the inner mold 6 can be separated for easy cleaning, thereby solving the problem that sediment is easily accumulated inside the cooling channel of the existing mold, which is easy to cause blockage, thereby reducing the cooling efficiency and weakening the mold performance. Moreover, compared with the existing mold, the structure of the mold shell 81 and the inner mold 6 is relatively simple, and the processing difficulty is relatively low.

[0020] The cleaning mechanism 9 includes a driving motor 91, the output end of the driving motor 91 is fixedly connected to a threaded rod 92, the middle part of the threaded rod 92 is threadedly connected to a rear connecting rod 93, the inner end of the rear connecting rod 93 is rotatably connected to an exhaust pipe 94, the back of the exhaust pipe 94 is rotatably connected to an intake pipe 95, a plurality of exhaust nozzles 96 are fixedly installed in the middle of the intake pipe 95, a front connecting rod 97 is rotatably installed at the front end of the exhaust pipe 94, a mounting shell 98 is fixedly connected to the front of the front connecting rod 97, two electromagnets 99 are fixedly installed inside the mounting shell 98, a permanent magnet 910 fixedly connected to the exhaust pipe 94 is arranged between the two electromagnets 99, and its function is to drive the exhaust pipe 94 to remove the exhaust nozzles 96. The motor 91 works, driving the threaded rod 92 to rotate, thereby driving the rear connecting rod 93, the exhaust pipe 94, and the front connecting rod 97 to move upward. When the exhaust pipe 94 is about to contact the inner mold 6, the exhaust nozzle 96 opens, and the water vapor generated by the cooling of the metal slurry will enter the exhaust pipe 94 from the intake pipe 95, and finally be ejected from the exhaust nozzle 96. At the same time, the two electromagnets 99 are energized and cooperate with each other, so that the permanent magnet 910 will drive the rear connecting rod 93 to perform a uniform reciprocating angle deflection, so that the water vapor ejected from the exhaust nozzle 96 cleans the inner side of the inner mold 6, thereby extending the service life of the mold and ensuring the quality of the casting and the stability of production.

[0021] Among them, sliding grooves are provided on the front and back sides of the two side columns 3, and the two side columns 3 are symmetrically arranged. The upper end of the grouting pipe 17 is located directly below the grouting ports of the two inner molds 6. The mold shell 81 is fixedly connected to the hydraulic telescopic rod 4, the air hole 83 is above the two water holes 82, the water inlet pipe 85 and the return pipe 86 are both connected to the water cavity 2, the air collecting pipe 88 is connected to the air shell 10, the driving motor 91 is fixedly connected to the side column 3, the threaded rod 92 is rotatably connected to the side column 3, the rear connecting rod 93 and the front connecting rod 97 are slidably connected to the sliding grooves on the corresponding sides, the upper end of the air inlet pipe 95 is connected to the air shell 10, the elastic airbag 15 is made of elastic material, the water inlet pipe 85, the return pipe 86, the air collecting pipe 88, and the air inlet pipe 95 are all hoses, the interior of the water cavity 2 is filled with an appropriate amount of cooling water, and a groove is provided on the inner side of the mold shell 81, and the groove is connected to the The inner mold 6 and the rectangular frame 7 are adapted to each other, and their function is to open the control valve 14, and the release agent atomizer 12 works. After the release agent is atomized, an appropriate amount of release agent droplets are injected into the interior of the two inner molds 6 through the connecting pipe 13, and the release agent droplets will form a liquid film on the inner wall of the inner mold 6; then the grouting device 16 works to inject the molten metal slurry into the interior of the two inner molds 6 through the grouting pipe 17. During the metal slurry injection process, the excess release agent droplets and gas inside the two inner molds 6 will enter the connecting pipe 13 and the elastic airbag 15, so that the excess release agent droplets are stored and used for the next release agent spraying, thereby solving the problem that the existing release agent droplets will evaporate into the air, which not only causes waste, but also causes harm to the human body and pollutes the environment.

[0022] Working principle: In the present invention, the inner mold 6 is in close contact with the mold shell 81, and the two hydraulic telescopic rods 1 4 and 2 5 are in a shortened state, that is, the left and right inner molds 6 are in contact, and the rear connecting rod 93 and the front connecting rod 97 are located at the lower end of the threaded rod 92; When the present invention is used, the two hydraulic telescopic rods 1 4 and the hydraulic telescopic rod 2 5 are synchronously extended until the two inner molds 6 and the two mold shells 81 are in a state of close contact, and the grouting hole formed after the two mold shells 81 are close together wraps the upper end of the grouting pipe 17 in the middle, and the exhaust hole formed wraps the bottom end of the connecting pipe 13 in the middle, and then the control valve 14 is opened, and the mold release agent atomizer 12 works. After the mold release agent is atomized, an appropriate amount of mold release agent droplets are injected into the interior of the two inner molds 6 through the connecting pipe 13, and the mold release agent droplets will form a layer of liquid film on the inner wall of the inner mold 6; then the grouting device 16 works to inject the molten metal slurry into the interior of the two inner molds 6 through the grouting pipe 17. During the metal slurry injection process, the excess mold release agent droplets and gas in the two inner molds 6 will enter the connecting pipe 13 and the elastic airbag 15. With the entry of the mold release agent droplets and gas, the elastic airbag 15 will expand; After a proper amount of metal slurry is injected between the two inner molds 6, the control valve 14 is closed to prevent the release agent droplets in the elastic airbag 15 from being discharged. Subsequently, the rear water valve 84 and the air valve 87 are opened, and the hydraulic telescopic rod 14 is slowly shortened, and the two mold shells 81 move away from the inner mold 6, so that a gap appears between the mold shell 81 and the inner mold 6. However, since the rear water valve 84 is in an open state, the water in the water cavity 2 will be sucked into the mold shell 81 and the inner mold 6, thereby cooling the boiler parts to be formed between the two inner molds 6. When the metal slurry is cooled and formed, the water in the mold shell 81 and the inner mold 6 will be changed from liquid to gas, and the water vapor will enter the interior of the gas shell 10 through the gas collecting pipe 88 and be temporarily stored; When the metal slurry is cooled and shaped, the hydraulic telescopic rod 1 4 will no longer shorten, and then the rear water valve 84 and the air valve 87 are closed, the front water valve 84 is opened, and the hydraulic telescopic rod 2 5 is slowly shortened until the inner mold 6 contacts the mold shell 81. During this process, the remaining water between the mold shell 81 and the inner mold 6 will be squeezed back into the water cavity 2. When the inner mold 6 contacts the mold shell 81, the drive motor 91 works, driving the threaded rod 92 to rotate, thereby driving the rear connecting rod 93, the exhaust pipe 94, and the front connecting rod 97 to move upward. When the exhaust pipe 94 is about to contact the inner mold 6, the exhaust nozzle 96 opens, and the water vapor stored inside the gas shell 10 enters the exhaust pipe 94 from the air inlet pipe 95, and is finally ejected from the exhaust nozzle 96. At the same time, the two electromagnets 99 are energized and cooperate with each other, so that the permanent magnet 910 will drive the rear connecting rod 93 to perform a uniform reciprocating angle deflection, so that the water vapor ejected from the exhaust nozzle 96 cleans the inner side of the inner mold 6.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] 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 die-casting device for producing boiler parts, comprising a base (1), a water cavity (2) is provided inside the base (1), two side columns (3) are fixedly connected to the top of the base (1), two hydraulic telescopic rods (4) and a hydraulic telescopic rod (5) are fixedly connected to the middle of the side columns (3), characterized in that: The inner side of the second hydraulic telescopic rod (5) is fixedly connected to an inner mold (6), the outer side of the inner mold (6) is fixedly connected to a rectangular frame (7), the inner sides of the two first hydraulic telescopic rods (4) are fixedly connected to an outer mold group (8), the inner side of the side column (3) is provided with a cleaning mechanism (9), the upper surface of the side column (3) is fixedly connected to an air shell (10), a connecting plate (11) is fixedly connected between the two air shells (10), the upper surface of the connecting plate (11) is fixedly connected to a mold release agent atomizer (12), the lower side of the mold release agent atomizer (12) is connected to a connecting pipe (13), the bottom end of the connecting pipe (13) is fixedly mounted with a control valve (14), the middle part of the connecting pipe (13) is fixedly mounted with an elastic air bag (15), the back side of the base (1) is fixedly mounted with a grouting device (16), and the front side of the grouting device (16) is connected to a grouting pipe (17).

2. The die-casting device for producing boiler parts according to claim 1, characterized in that: The outer mold assembly (8) comprises a mold shell (81), the outer side of the mold shell (81) is provided with two water holes (82) and an air hole (83), a water valve (84) is fixedly installed inside the water hole (82), the outer side of the rear water valve (84) is connected to a water inlet pipe (85), the outer side of the front water valve (84) is connected to a water return pipe (86), an air valve (87) is fixedly installed inside the air hole (83), and the outer side of the air valve (87) is connected to an air collecting pipe (88).

3. The die-casting device for producing boiler parts according to claim 2, characterized in that: The cleaning mechanism (9) comprises a driving motor (91), the output end of the driving motor (91) is fixedly connected to a threaded rod (92), the middle part of the threaded rod (92) is threadedly connected to a rear connecting rod (93), the inner end of the rear connecting rod (93) is rotatably connected to an exhaust pipe (94), the back side of the exhaust pipe (94) is rotatably connected to an intake pipe (95), a plurality of exhaust nozzles (96) are fixedly mounted to the middle part of the intake pipe (95), the front end of the exhaust pipe (94) is rotatably mounted to a front connecting rod (97), the front side of the front connecting rod (97) is fixedly connected to a mounting shell (98), two electromagnets (99) are fixedly mounted inside the mounting shell (98), and a permanent magnet (910) fixedly connected to the exhaust pipe (94) is arranged between the two electromagnets (99).

4. The die-casting device for producing boiler parts according to claim 3, characterized in that: Sliding grooves are provided on the front and rear surfaces of the two side columns (3), the two side columns (3) are symmetrically arranged, and the upper ends of the grouting pipes (17) are located directly below the grouting ports of the two inner molds (6).

5. The die-casting device for producing boiler parts according to claim 4, characterized in that: The mold shell (81) is fixedly connected to the hydraulic telescopic rod (4); above the air hole (83) and the two water holes (82), the water inlet pipe (85) and the water return pipe (86) are both connected to the water cavity (2); and the air collecting pipe (88) is connected to the air shell (10).

6. The die-casting device for producing boiler parts according to claim 5, characterized in that: The drive motor (91) is fixedly connected to the side column (3), the threaded rod (92) is rotatably connected to the side column (3), the rear connecting rod (93) and the front connecting rod (97) are slidably connected to the sliding grooves on the corresponding sides, and the upper end of the air intake pipe (95) is connected to the air housing (10).

7. The die-casting device for producing boiler parts according to claim 6, characterized in that: The elastic airbag (15) is made of elastic material, the water inlet pipe (85), the water return pipe (86), the air collecting pipe (88), and the air inlet pipe (95) are all soft tubes, and the water cavity (2) is filled with an appropriate amount of cooling water.

8. The die-casting device for producing boiler parts according to claim 7, characterized in that: A groove is provided on the inner side of the mold shell (81), and the groove is adapted to fit the inner mold (6) and the rectangular frame (7).

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