Casting device for valve casting production

Abstract

The invention relates to the technical field of valve casting, and discloses a casting device for valve casting production, which comprises a casting equipment body, a conveying equipment body is arranged at the bottom of the casting equipment body, and a plurality of heat recovery assemblies are loaded on the conveying equipment body. Meanwhile, under the mutual cooperation of the driving assembly and the heat recovery assembly, the heat gathering pipe absorbing the pouring heat can be moved to the outer side of a wax mold needing to be melted, the wax mold can be melted, the purpose of fully utilizing the heat is achieved, the wax mold is rapidly and evenly heated, the dewaxing time is shortened, compared with traditional hot water dewaxing, the heating efficiency is greatly improved, and the energy consumption is reduced. And the fan body is arranged, so that the situation that the valve wax mold is locally overheated can be prevented, deformation or incomplete melting caused by local overheating of the wax mold can be prevented, it is ensured that the size of the cavity is consistent with that of the wax mold, and therefore the casting yield is increased.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of valve casting, in particular to a casting device for valve casting production. BACKGROUND

[0002] The valve is a pipeline accessory used for opening and closing a pipeline, controlling flow direction, adjusting and controlling parameters (temperature, pressure and flow) of a conveying medium, and can be divided into shut-off valves, check valves, regulating valves and the like according to functions, the valve is a control component in a fluid conveying system, and has the functions of stopping, regulating, guiding flow, preventing backflow, stabilizing pressure, dividing flow or overflow pressure relief, and the like, and the valve used in a fluid control system is quite various in types and specifications, ranging from the simplest shut-off valve to various valves used in a self-control system. In the patent application with the application publication number CN120079811A, a conveying frame, a mold frame mounted on the conveying frame and a sand injection station are included; the sand injection station includes a mounting frame, a sand dropping mechanism mounted on the mounting frame and a tamping mechanism for tamping molding sand. The casting device for pump valve casting production can move the sieve disc up and down synchronously when the motor drives the material dropping roller to drop the material in the feeding hopper, so as to sieve the dropped molding sand; meanwhile, the sand is distributed more uniformly in the mold frame when the sand falls on the sieve net and the middle part of the sieve net is raised; and the material in the mold frame is preliminarily hammered and tamped.

[0003] In the prior art including the above patent, in most of the existing valve casting processes, the lost wax casting method is relatively common, and in the process flow of the casting, the wax inside the valve wax mold coated with a refractory material shell needs to be melted, and a common melting method is to be placed in a high-temperature wax dissolving solution, which is prone to cause a large amount of heat loss in the process, thereby causing waste of resources, and a large amount of paraffin wax smoke and carbon monoxide is diffused in the process of taking and placing the wax mold, and in a relatively closed environment, a large amount of gas mixed with air will cause an explosion accident when encountering an ignition source, thereby threatening the life safety of production personnel. SUMMARY

[0004] The problem to be solved by the application is that it is difficult to collect paraffin wax smoke and carbon monoxide generated in the process of dissolving wax in the existing valve casting production process.

[0005] To solve the above technical problems, the technical scheme of the application is as follows: a casting device for valve casting production, comprising a casting device body, a conveying device body is arranged at the bottom of the casting device body, a plurality of heat recovery assemblies are loaded on the conveying device body, a fan body is installed at the bottom of the conveying device body and located below the casting device body, and a driving assembly is arranged on the casting device body. The heat recovery assembly comprises a first loading cylinder arranged on the conveying device body, a second loading cylinder arranged on the first loading cylinder, a driving assembly arranged above the first loading cylinder, two arc-shaped heat collecting plates inserted into the first loading cylinder and the second loading cylinder, a heat collecting pipe filled with heat conducting liquid arranged on the inner wall of each arc-shaped heat collecting plate, a magnetic attraction insertion plate fixedly arranged at the bottom of the first loading cylinder and the second loading cylinder, an insertion slot fixedly arranged on the first loading cylinder and the second loading cylinder and matched with the magnetic attraction insertion plate, a rotating ring rotatably arranged on the arc-shaped outer wall of the first loading cylinder and the second loading cylinder, a magnetic attraction pushing rod fixedly connected with the rotating ring and slidably arranged in each insertion slot, a guide rod slidably arranged on the arc-shaped inner wall of each rotating ring, the rotating ring arranged outside the arc-shaped heat collecting plate, an inclined guide slot matched with the guide rod arranged on the arc-shaped outer wall of each arc-shaped heat collecting plate, and an arc-shaped telescopic rod fixedly arranged between the end of each guide rod and the first loading cylinder.

[0006] Preferably, the bottom of the second loading cylinder is in contact with the top of the first loading cylinder, each pair of insertion slots is arranged in a ring array, and each pair of magnetic attraction insertion plates is arranged in a ring array.

[0007] Preferably, each arc-shaped heat collecting plate is trapezoidal, and each arc-shaped heat collecting plate is provided with an inclined surface on both sides, and the casting device body is provided with a movable through slot matched with the two arc-shaped heat collecting plates.

[0008] Preferably, the driving assembly comprises a motor body mounted on the top of the casting device body, a rotating shaft body rotatably arranged on the casting device body, a connecting plate fixedly arranged at the bottom of the rotating shaft body, two electric push rods mounted on the connecting plate, and a clamping plate fixedly arranged at the output end of each electric push rod.

[0009] Preferably, the rotating shaft body and the motor body are connected through a shaft coupling, the two electric push rods are symmetrically arranged about the connecting plate, and the two clamping plates are in contact with the arc-shaped outer walls on both sides of the second loading cylinder.

[0010] Preferably, the bottom of the first loading cylinder and the bottom of the second loading cylinder are provided with an air inlet grille, and the fan body is arranged below the first loading cylinder.

[0011] Preferably, two arc-shaped through slots matched with the two guide rods are arranged on each rotating ring, and the guide rods pass through from the outside of the rotating ring to the inside of the rotating ring.

[0012] Preferably, the gas-liquid collecting assembly comprises an inlet and outlet pipe fixed on the valve wax mold, a butterfly valve is arranged on the top of the inlet and outlet pipe, a gas outlet is arranged on the arc outer wall of the inlet and outlet pipe, a gas guide pipe is fixed on the gas outlet by bolts, a liquid guide pipe is slidably arranged in the gas guide pipe, a falling plug is arranged on the end of the liquid guide pipe, a gas pump body is arranged on the side wall of the casting equipment body, a water pump body is arranged on the top of the casting equipment body, one end of the gas guide pipe is connected with the input end of the gas pump body, and one end of the liquid guide pipe is connected with the input end of the water pump body.

[0013] Preferably, the gas outlet is connected with the gas guide pipe, and a gas pipe support is fixedly arranged on the inner wall of the gas guide pipe, and the liquid guide pipe is slidably connected with the gas pipe support.

[0014] Preferably, a plurality of heat recovery assemblies are equidistantly arranged on the conveying equipment body, the valve wax mold in the first loading cylinder is provided with pouring liquid, and the valve wax mold in the second loading cylinder is in a solid paraffin state.

[0015] Compared with the prior art, the technical scheme of the present application has the following advantages: (1) By starting the conveying equipment body, and under the cooperation of the driving assembly and the heat recovery assembly, the heat-absorbing heat pipe that absorbs pouring heat can be moved to the outside of the wax mold that needs to be melted, the wax mold can be melted, the purpose of fully utilizing heat is achieved, the wax mold is quickly and uniformly heated, the dewaxing time is shortened, the heating efficiency is greatly improved compared with traditional hot water dewaxing, and the setting of the fan body can prevent local overheating of the valve wax mold, prevent local overheating of the wax mold from causing deformation or incomplete melting, ensure that the size of the cavity is consistent with the wax mold, and thus improve the yield of casting; (2) By starting the gas pump body and the water pump body, and under the cooperation of the water vapor collecting assembly, the molten liquid wax can be extracted by the water pump body, as the liquid level in the valve wax mold gradually decreases, the falling plug can automatically fall under the action of its own gravity, as the butterfly valve is in a closed state, the gas generated by the melting of the valve wax mold can be extracted by the gas pump body and concentrated for treatment, the temperature of the wax liquid is relatively high after melting, and during the transfer of the valve wax mold, the wax liquid will splash, the concentrated treatment system uses a pipeline to close the conveying of the wax liquid, workers almost cannot touch the high-temperature wax, the risk of scalding is greatly reduced, and when the wax is melted, it will emit a pungent smell, long-term inhalation will cause dizziness, nausea, and even harm to the respiratory system, and the setting of the gas pump body can concentrate the treatment of these odors. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the present application; Figure 2 It is a structure schematic view of the casting equipment body of the present application; Figure 3 Structure diagram of the heat recovery assembly of the present application; Figure 4 Structure diagram of the heat recovery assembly of the present application; Figure 5 Structure diagram of the connection between the first loading cylinder and the second loading cylinder of the present application; Figure 6 Structure diagram of the connection between the first loading cylinder and the valve wax mold of the present application; Figure 7 Structure diagram of the arc-shaped heat collecting plate of the present application; Figure 8 Structure diagram of the heat recovery assembly of the present application Figure 7 Partial enlarged view of A in the present application; Figure 9 Structure diagram of the connection between the heat recovery assembly and the gas-liquid collection assembly of the present application; Figure 10 Structure diagram of the heat recovery assembly of the present application Figure 9 Partial enlarged view of B in the present application.

[0017] In the figure: 1, the body of the casting equipment; 11, the body of the conveying equipment; 12, the body of the air pump; 13, the body of the water pump; 14, the body of the motor; 141, the body of the rotating shaft; 142, the electric push rod; 143, the clamping plate; 15, the valve wax mold; 16, the body of the fan; 2, the heat recovery assembly; 21, the first loading cylinder; 211, the second loading cylinder; 22, the arc-shaped heat collecting plate; 221, the inclined guide groove; 222, the heat collecting pipe; 23, the rotating ring; 24, the guide rod; 25, the arc-shaped telescopic rod; 26, the magnetic attraction plug-in plate; 27, the plug-in groove; 28, the magnetic attraction push rod; 3, the gas-liquid collection assembly; 31, the inlet and outlet pipe; 311, the butterfly valve; 32, the gas guide pipe; 33, the liquid guide pipe; 331, the falling plug. DETAILED DESCRIPTION

[0018] The purposes, technical solutions and advantages of the embodiments of the present disclosure will be clearer, and the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0019] Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall have the ordinary meaning as understood by a person of ordinary skill in the art to which the present disclosure pertains. The terms "comprising" or "including" or similar words used in the present disclosure mean that the elements or objects before the word encompass the elements or objects listed after the word and equivalents thereof, without excluding other elements or objects. The terms "connected" or "linked" or similar words are not limited to physical or mechanical connection, but also include electrical connection, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like are only used to indicate relative positional relationships, which may change accordingly when the absolute positions of the described objects change.

[0020] As shown in Figures 1 to 10 The present application provides a casting device for valve casting production, which comprises a casting device body 1, a conveying device body 11 is arranged at the bottom of the casting device body 1, a plurality of heat recovery assemblies 2 are loaded on the conveying device body 11, a fan body 16 is installed at the bottom of the conveying device body 11 and located below the casting device body 1, and a driving assembly is arranged on the casting device body 1. The heat recovery assembly 2 comprises a first loading cylinder 21 arranged on the conveying device body 11, a second loading cylinder 211 is arranged on the first loading cylinder 21, the driving assembly is located above the first loading cylinder 21, two arc-shaped heat collecting plates 22 are inserted into the first loading cylinder 21 and the second loading cylinder 211, a heat collecting pipe 222 filled with heat-conducting liquid is arranged on the inner wall of each arc-shaped heat collecting plate 22, a magnetic attraction insertion plate 26 is fixedly arranged at the bottom of the first loading cylinder 21 and the second loading cylinder 211, an insertion slot 27 engaged with the magnetic attraction insertion plate 26 is fixedly arranged on the first loading cylinder 21 and the second loading cylinder 211, a swivel ring 23 is rotatably arranged on the arc-shaped outer wall of the first loading cylinder 21 and the second loading cylinder 211, a magnetic attraction pushing rod 28 fixedly connected with the swivel ring 23 is slidably arranged in each insertion slot 27, a guide rod 24 is slidably arranged on the arc-shaped inner wall of each swivel ring 23, the swivel ring 23 is sleeved outside the arc-shaped heat collecting plate 22, an inclined guide slot 221 matched with the guide rod 24 is formed on the arc-shaped outer wall of each arc-shaped heat collecting plate 22, and an arc-shaped expansion rod 25 is fixedly arranged between the end of each guide rod 24 and the first loading cylinder 21. A valve wax mold 15 is arranged in each first loading cylinder 21, and a gas-liquid collecting assembly 3 is arranged on the valve wax mold 15. The bottom of the second loading cylinder 211 is in contact with the top of the first loading cylinder 21, each pair of insertion slots 27 is arranged in a ring array, and each pair of magnetic attraction insertion plates 26 is arranged in a ring array. Each arc-shaped heat collecting plate 22 is trapezoidal, and an inclined surface is arranged on both sides of each arc-shaped heat collecting plate 22. An active through slot matched with the two arc-shaped heat collecting plates 22 is formed on the casting device body 1. The driving assembly comprises a motor body 14 mounted on the top of the casting device body 1, a rotating shaft body 141 is arranged on the casting device body 1, a connecting plate is fixedly arranged at the bottom of the rotating shaft body 141, and two electric push rods 142 are mounted on the connecting plate, and a clamping plate 143 is fixedly arranged at the output end of each electric push rod 142; The rotating shaft body 141 and the motor body 14 are connected through a shaft coupling, the two electric push rods 142 are symmetrically arranged about the connecting plate, and the two clamping plates 143 are in contact with the arc-shaped outer walls on both sides of the second loading cylinder 211; The first loading cylinder 21 and the second loading cylinder 211 are provided with air inlet grilles at the bottom, and the fan body 16 is located below the first loading cylinder 21; Each rotating ring 23 is provided with two arc-shaped through grooves matched with the two guide rods 24, and the guide rods 24 pass through the rotating ring 23 from the outside to the inside; The gas-liquid collecting assembly 3 comprises an inlet and outlet pipe 31 fixed to the valve wax mold 15, a butterfly valve 311 is arranged at the top of the inlet and outlet pipe 31, an air outlet is formed in the arc-shaped outer wall of the inlet and outlet pipe 31, a gas guide pipe 32 is fixedly installed on the air outlet through bolts, a liquid guide pipe 33 is slidably arranged in the gas guide pipe 32, a falling plug 331 is sleeved at the end of the liquid guide pipe 33, a gas pump body 12 is mounted on the side wall of the casting device body 1, a water pump body 13 is mounted on the top of the casting device body 1, one end of the gas guide pipe 32 is communicated with the input end of the gas pump body 12, and one end of the liquid guide pipe 33 is communicated with the input end of the water pump body 13; The air outlet is communicated with the gas guide pipe 32, and a gas pipe support is fixedly arranged on the inner wall of the gas guide pipe 32, and the liquid guide pipe 33 is slidably connected with the gas pipe support; A plurality of heat recovery assemblies 2 are equidistantly distributed on the conveying device body 11, the valve wax mold 15 in the first loading cylinder 21 is provided with pouring liquid, the valve wax mold 15 in the second loading cylinder 211 is in a solid paraffin state, and the first loading cylinder 21 and the second loading cylinder 211 are both provided with lifting grooves matched with the arc-shaped heat collecting plates 22; In the process of dissolving the wax of the valve wax mold 15 inside the second loading cylinder 211 and pouring the cooling of the valve wax mold 15 inside the first loading cylinder 21, the second loading cylinder 211 can be placed on the top of the first loading cylinder 21, and the magnetic plug-in plate 26 at the bottom of the second loading cylinder 211 is clamped with the plug-in slot 27 on the top of the first loading cylinder 21, and then they are placed on the top of the conveying equipment body 11. At this time, the two heat concentrating pipes 222 on the first loading cylinder 21 can absorb the heat of the valve wax mold 15. At this time, the conveying equipment body 11 is started to drive the first loading cylinder 21 and the second loading cylinder 211 to move to the inside of the casting equipment body 1. At this time, the second loading cylinder 211 is located between the two clamping plates 143. At this time, the two electric push rods 142 are started to make the two clamping plates 143 approach each other to clamp the arc-shaped outer wall of the second loading cylinder 211. Then the motor body 14 is started to drive the rotating shaft body 141 to rotate under the connection of the shaft coupling. At this time, the magnetic plug-in plate 26 at the bottom of the second loading cylinder 211 can contact with the magnetic push rod 28 on the first loading cylinder 21, and push the magnetic push rod 28 to slide in the plug-in slot 27, at the same time, drive the rotating ring 23 fixedly connected with the magnetic push rod 28 to rotate around the connection position with the first loading cylinder 21, drive the two guide rods 24 fixedly connected with the rotating ring 23 to slide in the two inclined guide slots 221 respectively. Because the lifting grooves on the first loading cylinder 21 and the second loading cylinder 211 are not in the same level at this time, the arc-shaped heat concentrating plate 22 on the first loading cylinder 21 cannot move upward, and can compress the arc-shaped expansion rod 25 on the first loading cylinder 21. When the magnetic plug-in plate 26 at the bottom of the second loading cylinder 211 is completely plugged into the plug-in slot 27, the lifting grooves on the first loading cylinder 21 and the second loading cylinder 211 are in the same level at this time. Under the action of the elastic force of the two arc-shaped expansion rods 25, the guide rod 24 can slide in the inclined guide slot 221, and the arc-shaped heat concentrating plate 22 on the first loading cylinder 21 can slide upward, and then push the arc-shaped heat concentrating plate 22 on the second loading cylinder 211 to slide upward. At this time, the two high-temperature heat concentrating pipes 222 on the first loading cylinder 21 can melt the solid valve wax mold 15 inside the second loading cylinder 211. At the same time, the fan body 16 is started to cool the valve wax mold 15 inside the first loading cylinder 21. The stacking of the first loading cylinder 21 and the second loading cylinder 211 can facilitate the entry of part of the hot air inside the first loading cylinder 21 into the second loading cylinder 211, improve the utilization rate of heat, and improve the melting efficiency of the valve wax mold 15 inside the second loading cylinder 211. In the process of melting the solid paraffin in the valve wax mold 15 inside the second loading cylinder 211, the air duct 32 can be installed on the inlet and outlet pipe 31, and the air pump body 12 and the water pump body 13 are started, the melted liquid paraffin can be extracted by the water pump body 13, as the liquid level inside the valve wax mold 15 gradually decreases, the falling plug 331 can automatically fall under the action of its own gravity, and at this time the butterfly valve 311 is in the closed state, the gas generated by the melting of the valve wax mold 15 can be extracted by the air pump body 12 and treated.

[0021] The working principle and usage process of this invention are as follows: First, the second loading cylinder 211 is placed on top of the first loading cylinder 21, and the magnetic insertion plate 26 at the bottom of the second loading cylinder 211 engages with the insertion slot 27 at the top of the first loading cylinder 21. Then, both are placed on top of the conveying equipment body 11. At this time, the two heat-collecting tubes 222 on the first loading cylinder 21 can absorb the heat of the valve wax mold 15. Then, the conveying equipment body 11 is started, which moves the first loading cylinder 21 and the second loading cylinder 211 into the casting equipment body 1. At this time, the second loading cylinder 211 is located between the two clamping plates 143. Then, the two electric push rods 142 are activated, so that the two clamping plates 143 move closer to each other at the same time, which can press against the arc-shaped outer wall of the second loading cylinder 211. The clamping is performed, and then the motor body 14 is started. Under the connection of the coupling, the rotating shaft body 141 is driven to rotate. At this time, the magnetic insertion plate 26 at the bottom of the second loading cylinder 211 can contact the magnetic push rod 28 on the first loading cylinder 21 and push the magnetic push rod 28 to slide inside the insertion groove 27. At the same time, the rotating ring 23 fixedly connected to the magnetic push rod 28 is driven to rotate around the position connected to the first loading cylinder 21. The two guide rods 24 fixedly connected to the rotating ring 23 are driven to slide inside the two inclined guide grooves 221 respectively. Since the lifting grooves on the first loading cylinder 21 and the second loading cylinder 211 are not flush at this time, the arc-shaped heat-gathering plate 22 on the first loading cylinder 21 cannot move upward, and the arc-shaped telescopic plate on the first loading cylinder 21 can be compressed. When the magnetic insertion plate 26 at the bottom of the second loading cylinder 211 is fully inserted into the insertion slot 27, the lifting slots on the first loading cylinder 21 and the second loading cylinder 211 are relatively flush. Under the elastic force of the two arc-shaped telescopic rods 25, the guide rod 24 can slide inside the inclined guide slot 221, causing the arc-shaped heat-gathering plate 22 on the first loading cylinder 21 to slide upward, thereby pushing the arc-shaped heat-gathering plate 22 on the second loading cylinder 211 to slide upward. At this time, the two high-temperature heat-gathering tubes 222 on the first loading cylinder 21 can melt the solid valve wax mold 15 inside the second loading cylinder 211. At the same time, the fan body 16 is activated to dissipate heat from the valve wax mold 15 inside the first loading cylinder 211. The stacking of the first loading cylinder 21 and the second loading cylinder 211 facilitates the entry of some hot air from the first loading cylinder 21 into the second loading cylinder 211, improving the heat utilization rate and the melting efficiency of the valve wax mold 15 inside the second loading cylinder 211. During the melting process of solid paraffin wax inside the valve wax mold 15 inside the second loading cylinder 211, the air guide pipe 32 can be installed on the inlet and outlet pipes 31, and the air pump body 12 and water pump body 13 can be started. The melted liquid wax can be drawn by the water pump body 13. As the liquid level inside the valve wax mold 15 gradually decreases, the drop plug 331 can automatically fall under its own gravity. At this time, the butterfly valve 311 is in the closed state, and the gas generated by the melting of the valve wax mold 15 can be drawn by the air pump body 12 and centrally processed.

[0022] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, and the scope of protection of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements should also be considered to fall within the protection scope of the present application.

Claims

1. A casting apparatus for valve casting production, comprising a casting equipment body (1), characterized in that: The casting equipment body (1) is provided with a conveying equipment body (11) at the bottom. The conveying equipment body (11) is equipped with multiple heat recovery components (2). The conveying equipment body (11) is provided with a fan body (16) at the bottom and the fan body (16) is located below the casting equipment body (1). The casting equipment body (1) is provided with a drive component. The heat recovery assembly (2) includes a first loading cylinder (21) disposed on the conveying equipment body (11), and a second loading cylinder (211) disposed on the first loading cylinder (21). The driving assembly is located above the first loading cylinder (21). Two arc-shaped heat-concentrating plates (22) are inserted into both the first loading cylinder (21) and the second loading cylinder (211). Each arc-shaped heat-concentrating plate (22) has a heat-concentrating tube (222) filled with heat-conducting liquid on its inner wall. A magnetic insertion plate (26) is fixedly disposed at the bottom of both the first loading cylinder (21) and the second loading cylinder (211). An insertion groove (27) that engages with the magnetic insertion plate (26) is fixedly disposed on both the first loading cylinder (21) and the second loading cylinder (211). A rotating ring (23) is rotatably provided on the arc-shaped outer wall of the second loading cylinder (211). A magnetic push rod (28) fixedly connected to the rotating ring (23) is slidably provided inside each insertion slot (27). A guide rod (24) is slidably provided on the arc-shaped inner wall of each rotating ring (23). The rotating ring (23) is sleeved on the outside of the arc-shaped heat-collecting plate (22). An inclined guide groove (221) matching the guide rod (24) is opened on the arc-shaped outer wall of each arc-shaped heat-collecting plate (22). An arc-shaped telescopic rod (25) is fixedly provided between the end of each guide rod (24) and the first loading cylinder (21). A valve wax mold (15) is provided inside each first loading cylinder (21). A gas-liquid collection assembly (3) is provided on the valve wax mold (15).

2. The casting apparatus for valve casting production according to claim 1, characterized in that: The bottom of the second loading cylinder (211) is in contact with the top of the first loading cylinder (21), each pair of the insertion slots (27) are arranged in a ring array, and each pair of magnetic insertion plates (26) are arranged in a ring array.

3. The casting apparatus for valve casting production according to claim 1, characterized in that: Each of the arc-shaped heat-gathering plates (22) is trapezoidal, and each of the arc-shaped heat-gathering plates (22) has inclined surfaces on both sides. The casting equipment body (1) is provided with movable through slots that match the two arc-shaped heat-gathering plates (22).

4. The casting apparatus for valve casting production according to claim 1, characterized in that: The drive assembly includes a motor body (14) mounted on the top of the casting equipment body (1), a rotating shaft body (141) rotatably mounted on the casting equipment body (1), a connecting plate fixedly mounted at the bottom of the rotating shaft body (141), and two electric push rods (142) mounted on the connecting plate, and a clamping plate (143) fixedly mounted at the output end of each electric push rod (142).

5. A casting apparatus for valve casting production according to claim 4, characterized in that: The rotating shaft body (141) is connected to the motor body (14) by a coupling. The two electric push rods (142) are symmetrically arranged about the connecting plate. The two clamping plates (143) are in contact with the arc-shaped outer walls on both sides of the second loading cylinder (211).

6. A casting apparatus for valve casting production according to claim 1, characterized in that: Both the first loading cylinder (21) and the second loading cylinder (211) are provided with air intake grilles at the bottom, and the fan body (16) is located below the first loading cylinder (21).

7. A casting apparatus for valve casting production according to claim 1, characterized in that: Each of the rotating rings (23) has two arc-shaped through slots that match the two guide rods (24), and the guide rods (24) pass through the outer side of the rotating ring (23) to its inner side.

8. A casting apparatus for valve casting production according to claim 1, characterized in that: The gas-liquid collection assembly (3) includes an inlet / outlet pipe (31) fixed on a valve wax mold (15). A butterfly valve (311) is provided at the top of the inlet / outlet pipe (31). An air outlet is provided on the arc-shaped outer wall of the inlet / outlet pipe (31), and a guide pipe (32) is fixedly installed on the air outlet by bolts. A guide pipe (33) is slidably provided inside the guide pipe (32), and a drop plug (331) is sleeved at the end of the guide pipe (33). An air pump body (12) is installed on the side wall of the casting equipment body (1), and a water pump body (13) is installed on the top of the casting equipment body (1). One end of the guide pipe (32) is connected to the input end of the air pump body (12), and one end of the guide pipe (33) is connected to the input end of the water pump body (13).

9. A casting apparatus for valve casting production according to claim 8, characterized in that: The air outlet is connected to the air guide tube (32), and an air tube support is fixedly installed on the inner wall of the air guide tube (32), and the liquid guide tube (33) is slidably connected to the air tube support.

10. A casting apparatus for valve casting production according to claim 1, characterized in that: Multiple heat recovery components (2) are equidistantly distributed on the conveying equipment body (11). The valve wax mold (15) inside the first loading cylinder (21) is filled with casting liquid, and the valve wax mold (15) inside the second loading cylinder (211) is in solid paraffin wax state.

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