Valve casting equipment based on resin sand regeneration

Abstract

The utility model relates to the technical field of casting, in particular to valve casting equipment based on resin sand regeneration, which comprises a machine frame, a spiral feeding machine is fixedly connected to the rear side of the machine frame, a first motor is fixedly connected to the front surface of the machine frame, and a dispersing box is fixedly connected to the front surface of the machine frame. The position of the contact rod in the sliding sleeve can be adjusted, the sliding sleeve slides along the limiting frame to be matched with the bearing frame capable of sliding up and down, resin sand in the sand box can be locally pounded, the sand box is covered with the partition plate in the later period, the contact rod extrudes the partition plate when moving up and down in the bearing frame, and then the resin sand in the sand box can be integrally pounded. And by means of heating and stirring, collision and friction between sand grains are utilized, the old sand is heated to a certain temperature, the binder remaining on the surfaces of the old sand grains is embrittled, decomposed or burnt away to complete regeneration, and the casting cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, in particular to valve casting equipment based on resin sand regeneration. Background Art

[0002] Resin sand casting used in conjunction with valve casting equipment refers to molding sand or core sand that uses artificial synthetic resin as a binder for sand particles. When used, the resin sand is poured into a mold shell to complete the casting or core, and then a curing agent is added to solidify the resin to complete the production. However, the devices in the prior art have certain disadvantages when used. For example, the resin sand casting pouring device recorded in announcement number CN218476001U includes a pouring frame, a pouring material tank is fixedly connected to the upper surface of the pouring frame, and the pouring material tank extends through the outside of the pouring frame, and the inner wall of the pouring frame is located below the pouring material tank and is fixedly connected to a fixed block, and the upper end of the fixed block is fixedly connected to a placement block;

[0003] Although the above device reduces bubbles in the castable and prevents residual cavities inside the mold after molding, the selection of resin and curing agent and the appropriate sand mixing process can reduce bubbles. However, the above device lacks a pounding structure, which requires manual pounding during casting, and lacks a resin sand regeneration structure, which increases the cost of valve casting. Utility Model Content

[0004] The purpose of the utility model is to provide a valve casting device based on resin sand regeneration to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A valve casting device based on resin sand regeneration comprises a frame, a spiral feeder is fixedly connected to the rear side of the frame, a No. 1 motor is fixedly connected to the front surface of the frame, a dispersion box is fixedly connected to the front surface of the frame, a gathering hood is fixedly connected to the lower end of the dispersion box, a mounting frame is fixedly connected to the front surface of the frame, a bearing frame is nested on the outer surface of the mounting frame, a corrugated plate is fixedly connected to the lower surface of the bearing frame, a limiting frame is fixedly connected to the front surface of the frame, a distribution box is fixedly connected to the lower surface of the frame, a stirring tank is fixedly connected to one side of the distribution box located on the lower surface of the frame, and a smelting furnace is embedded in the upper surface of the frame.

[0007] Furthermore, a gear is fixedly connected to the output end of the No. 1 motor, a rotating frame is rotatably connected to the inner surface of the dispersion box, a gear ring is fixedly connected to the outer surface of the rotating frame, the rotating frame and the gear ring are meshingly connected, a dispersion plate is fixedly connected to the upper surface of the gathering hood, and a metal hose is fixedly connected to the lower surface of the gathering hood.

[0008] Furthermore, a limiting rod is embedded in the side surface of the mounting frame, a sliding plate is slidably connected to the outer surface of the limiting rod, a roller is rotatably connected to the upper surface of the sliding plate, the roller and the wave plate are rollingly connected, and a hydraulic cylinder is fixedly connected to the other side surface of the mounting frame, and an output end of the hydraulic cylinder is fixedly connected to the sliding plate.

[0009] Furthermore, a spring is nested and connected on the outer surface of the mounting frame, a damping block is embedded and connected to the bearing frame near the spring, and the bearing frame is slidably connected to the mounting frame via the damping block.

[0010] Furthermore, a double-headed screw is embedded and rotatably connected to the front surface of the bearing frame, an extrusion block is threadedly connected to the outer surface of the double-headed screw, and a rotating roller is rotatably connected to the inner surface of the bearing frame.

[0011] Furthermore, a sliding sleeve is nested and connected to the outer surface of the limiting frame, a locking bolt is threadedly connected to the outer surface of the sliding sleeve, and a contact rod is embedded and connected to the upper surface of the sliding sleeve.

[0012] Furthermore, a No. 2 motor is fixedly connected to the upper surface of the frame, a rotating shaft is fixedly connected to the output end of the No. 2 motor, a stirring blade is fixedly connected to the outer surface of the rotating shaft, a resistance wire is embedded in the interior of the stirring tank, and a controller is embedded in the outer surface of the stirring tank.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The rotating frame rotates and scrapes against the upper surface of the dispersion plate, so that the resin sand passes through the holes on the dispersion plate to avoid the resin sand from agglomerating and making the resin sand more evenly distributed in the sand box. The slope of the wave plate is from small to large, so when the hydraulic cylinder drives the sliding plate to move toward the position of the distribution box along the limit rod, the bearing frame slides up and down on the outer surface of the mounting frame, and realizes its own buffering through the damping block and the spring during the sliding process. In this process, the roller reduces the friction between the sliding plate and the wave plate, and the locking bolt can be manually rotated to separate one end of the locking bolt from the contact rod, so as to adjust the position of the contact rod in the sliding sleeve, and slide the sliding sleeve along the limit frame to cooperate with the bearing frame that can slide up and down, so as to partially compact the resin sand in the sand box. In the later stage, a partition is covered on the sand box, and the contact rod squeezes the partition when the bearing frame moves up and down, so as to compact the resin sand in the sand box as a whole.

[0015] Manually rotate the double-headed screw, and under the push of the thread, the extrusion block moves from the outside to the inside, so that the extrusion block clamps the sand box. The sand box is used to make sand cores with resin sand. After the production is completed, the sand box is pushed, and the sand box moves along the rotating roller to the upper surface of the frame. When it needs to be recycled after use, it is heated and stirred, and the collision and friction between the sand particles are utilized. By heating the old sand to a certain temperature, the residual binder on the surface of the old sand particles is brittle, decomposed or burned to complete the regeneration. Specifically, the old sand is put into the mixing tank, and the No. 2 motor is started. The output end of the No. 2 motor drives the shaft to rotate, and the shaft cooperates with the stirring blade to crush the old sand. The controller cooperates with the resistance wire to heat the mixing tank to achieve the regeneration of the resin sand and reduce the cost of valve production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the dispersion box of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the load-bearing frame of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the stirring tank of the utility model.

[0020] In the figure: 1. spiral feeder; 2. frame; 3. No. 1 motor; 301. gear; 302. dispersion box; 303. rotating frame; 304. gear ring; 305. dispersion plate; 306. gathering cover; 307. metal hose; 4. mounting frame; 401. limit rod; 402. sliding plate; 403. roller; 404. hydraulic cylinder; 405. spring; 5. bearing frame; 501. extrusion block; 502. rotating roller; 503. double-headed screw rod; 504. corrugated plate; 6. limit frame; 601. sliding sleeve; 602. locking bolt; 603. contact rod; 7. distribution box; 701. smelting furnace; 8. No. 2 motor; 801. rotating shaft; 802. stirring blade; 803. resistance wire; 804. stirring tank; 805. controller. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 4In an embodiment of the utility model, a valve casting device based on resin sand regeneration includes a frame 2, a spiral feeder 1 is fixedly connected to the rear side of the frame 2, a No. 1 motor 3 is fixedly connected to the front surface of the frame 2, a dispersion box 302 is fixedly connected to the front surface of the frame 2, a gathering cover 306 is fixedly connected to the lower end of the dispersion box 302, a mounting frame 4 is fixedly connected to the front surface of the frame 2, a bearing frame 5 is nested and connected to the outer surface of the mounting frame 4, a corrugated plate 504 is fixedly connected to the lower surface of the bearing frame 5, a limiting frame 6 is fixedly connected to the front surface of the frame 2, a distribution box 7 is fixedly connected to the lower surface of the frame 2, a stirring tank 804 is fixedly connected to the lower surface of the frame 2 on one side of the distribution box 7, and a smelting furnace 701 is embedded and connected to the upper surface of the frame 2.

[0023] Specifically, when in use, the outer baffle is placed on the upper surface of the supporting frame 5, and the sand box is placed on the baffle, and then the screw feeder 1 is started to transport the configured resin sand to the inside of the dispersion box 302, and then transport it to the sand box after dispersion, and then perform a pounding operation. Here, a sand core is made according to the requirements of the valve, and then baked to increase the strength. The metal is melted in the melting furnace 701, and then the molten metal is poured. After demolding in the later stage, the used resin sand is put into the mixing tank 804, and recycled and reused through the mixing tank 804 to complete the casting of the valve.

[0024] Embodiment 1

[0025] like Figure 2 As shown, the output end of motor No. 1 3 is fixedly connected with gear 301, the inner surface of dispersion box 302 is rotatably connected with rotating frame 303, the outer surface of rotating frame 303 is fixedly connected with gear ring 304, rotating frame 303 and gear ring 304 are meshingly connected, the upper surface of aggregation cover 306 is fixedly connected with dispersion plate 305, the lower surface of aggregation cover 306 is fixedly connected with metal hose 307.

[0026] In this embodiment, the output end of motor No. 1 drives gear 301 to rotate, and gear 301 drives gear ring 304 to rotate, so that rotating frame 303 rotates and scrapes the upper surface of dispersion plate 305, so that resin sand passes through the holes on dispersion plate 305, avoiding agglomeration of resin sand and making the resin sand more evenly distributed in the sand box. Metal hose 307 is used to guide the resin sand.

[0027] Embodiment 2

[0028] On the basis of the first embodiment, in order to make up for the problem that the resin sand is inconvenient to be recycled and regenerated in the first embodiment.

[0029] like Figure 1-4As shown, the side surface of the mounting frame 4 is embedded with a limit rod 401, the outer surface of the limit rod 401 is slidably connected with a sliding plate 402, the upper surface of the sliding plate 402 is rotatably connected with a roller 403, the roller 403 and the wave plate 504 are rollingly connected, the other side surface of the mounting frame 4 is fixedly connected with a hydraulic cylinder 404, the output end of the hydraulic cylinder 404 is fixedly connected with the sliding plate 402, the outer surface of the mounting frame 4 is nested with a spring 405, the bearing frame 5 is embedded with a damping block near the position of the spring 405, the bearing frame 5 is slidably connected to the mounting frame 4 through the damping block, the outer surface of the limit frame 6 is nested with a sliding sleeve 601, the outer surface of the sliding sleeve 601 is threadedly connected with a locking bolt 602, and the upper surface of the sliding sleeve 601 is embedded with a contact rod 603.

[0030] In this embodiment, the slope of the wave plate 504 is from small to large. Therefore, when the hydraulic cylinder 404 drives the sliding plate 402 to move along the limit rod 401 to the position of the distribution box 7, the supporting frame 5 slides up and down on the outer surface of the mounting frame 4, and realizes its own buffering through the damping block and the spring 405 during the sliding process. In this process, the roller 403 reduces the friction between the sliding plate 402 and the wave plate 504. The locking bolt 602 can be manually rotated to separate one end of the locking bolt 602 from the contact rod 603, so that the position of the contact rod 603 in the sliding sleeve 601 can be adjusted. The sliding sleeve 601 can be slid along the limit frame 6 to cooperate with the supporting frame 5 that can slide up and down, so that the resin sand in the sand box can be partially compacted. Later, the sand box is covered with a partition, and the contact rod 603 squeezes the partition when the supporting frame 5 moves up and down, so that the resin sand in the sand box can be compacted as a whole.

[0031] like Figure 1-4 As shown, the front surface of the supporting frame 5 is embedded with a double-headed screw 503 that is rotatably connected, the outer surface of the double-headed screw 503 is threadedly connected to the extrusion block 501, the inner surface of the supporting frame 5 is rotatably connected to the rotating roller 502, the upper surface of the frame 2 is fixedly connected to the No. 2 motor 8, the output end of the No. 2 motor 8 is fixedly connected to the rotating shaft 801, the outer surface of the rotating shaft 801 is fixedly connected to the stirring blade 802, the interior of the stirring tank 804 is embedded with a resistance wire 803, and the outer surface of the stirring tank 804 is embedded with a controller 805.

[0032] In this embodiment, the double-headed screw 503 is manually rotated, and under the push of the thread, the extrusion block 501 moves from the outside to the inside, so that the extrusion block 501 clamps the sand box, and the sand box is used to make sand cores with resin sand. After the production is completed, the sand box is pushed, and the sand box moves along the rotating roller 502 to the upper surface of the frame 2. When it needs to be recycled after use, it is heated and stirred, and the collision and friction between the sand particles are utilized. By heating the old sand to a certain temperature, the residual binder on the surface of the old sand particles is brittle, decomposed or burned to complete the regeneration. Specifically, the old sand is put into the mixing tank 804, and the No. 2 motor 8 is started. The output end of the No. 2 motor 8 drives the rotating shaft 801 to rotate, and the rotating shaft 801 cooperates with the stirring blade 802 to crush the old sand. The controller 805 cooperates with the resistance wire 803 to heat the mixing tank 804 to achieve the regeneration of the resin sand.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A valve casting device based on resin sand regeneration, comprising a frame (2), characterized in that: The rear side of the frame (2) is fixedly connected to a spiral feeder (1); the front surface of the frame (2) is fixedly connected to a No. 1 motor (3); the front surface of the frame (2) is fixedly connected to a dispersion box (302); the lower end of the dispersion box (302) is fixedly connected to a gathering cover (306); the front surface of the frame (2) is fixedly connected to a mounting frame (4); the outer surface of the mounting frame (4) is nested with a bearing frame (5); the lower surface of the bearing frame (5) is fixedly connected to a corrugated plate (504); the front surface of the frame (2) is fixedly connected to a limiting frame (6); the lower surface of the frame (2) is fixedly connected to a distribution box (7); a stirring tank (804) is fixedly connected to one side of the distribution box (7) located on the lower surface of the frame (2); and a smelting furnace (701) is embedded in the upper surface of the frame (2).

2. A valve casting equipment based on resin sand regeneration according to claim 1, characterized in that: The output end of the first motor (3) is fixedly connected to a gear (301), the inner surface of the dispersion box (302) is rotatably connected to a rotating frame (303), the outer surface of the rotating frame (303) is fixedly connected to a gear ring (304), the rotating frame (303) and the gear ring (304) are meshingly connected, the upper surface of the gathering cover (306) is fixedly connected to a dispersion plate (305), and the lower surface of the gathering cover (306) is fixedly connected to a metal hose (307).

3. The valve casting equipment based on resin sand regeneration according to claim 1 is characterized in that: The side surface of the mounting frame (4) is embedded with a limit rod (401), the outer surface of the limit rod (401) is slidably connected to a sliding plate (402), the upper surface of the sliding plate (402) is rotatably connected to a roller (403), the roller (403) and the wave plate (504) are rollingly connected, and the other side surface of the mounting frame (4) is fixedly connected to a hydraulic cylinder (404), and the output end of the hydraulic cylinder (404) is fixedly connected to the sliding plate (402).

4. The valve casting equipment based on resin sand regeneration according to claim 1 is characterized in that: A spring (405) is embedded and connected on the outer surface of the mounting frame (4), a damping block is embedded and connected to the bearing frame (5) near the spring (405), and the bearing frame (5) is slidably connected to the mounting frame (4) via the damping block.

5. The valve casting equipment based on resin sand regeneration according to claim 1 is characterized in that: A double-headed screw (503) is embedded and rotatably connected to the front surface of the carrying frame (5); an extrusion block (501) is threadedly connected to the outer surface of the double-headed screw (503); and a rotating roller (502) is rotatably connected to the inner surface of the carrying frame (5).

6. The valve casting equipment based on resin sand regeneration according to claim 1 is characterized in that: A sliding sleeve (601) is embedded and connected to the outer surface of the limiting frame (6), a locking bolt (602) is threadedly connected to the outer surface of the sliding sleeve (601), and a contact rod (603) is embedded and connected to the upper surface of the sliding sleeve (601).

7. The valve casting equipment based on resin sand regeneration according to claim 1 is characterized in that: A No. 2 motor (8) is fixedly connected to the upper surface of the frame (2); a rotating shaft (801) is fixedly connected to the output end of the No. 2 motor (8); a stirring blade (802) is fixedly connected to the outer surface of the rotating shaft (801); a resistance wire (803) is embedded in the interior of the stirring tank (804); and a controller (805) is embedded in the outer surface of the stirring tank (804).

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