Sand shooting device for iron mold sand-coated molding

Abstract

The utility model discloses a sand shooting device for iron mold sand-coated molding, which relates to the technical field of sand-coated molding and comprises a sand separating box, a sand inlet fixedly mounted on the upper surface of the sand separating box, a sand shooting nozzle fixedly mounted at the bottom of the sand separating box, a dust cover arranged on the outer side of the sand shooting nozzle and a collecting mechanism arranged on the dust cover. The collecting mechanism comprises a lead screw elevator fixedly installed on the dust cover, a collecting plate is fixedly installed at the output tail end of the lead screw elevator, a movable hole is formed in the collecting plate, a sealing ring is arranged in the movable hole, an installation opening is formed in the bottom of the dust cover, a spraying mechanism is arranged at the installation opening, and an isolation pipe sleeve is fixedly installed in the dust cover. A linkage shaft is arranged between the lead screw lifters, a motor frame is fixedly installed on one side of the dustproof cover, and a driving motor is fixedly installed on the motor frame. According to the sand shooting device for iron mold sand-coated molding, through cooperative use of the collecting mechanism and the spraying mechanism, the situation of dust raising can be further reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of sand coating molding technology, specifically a sand-shooting device for iron mold sand coating molding. Background Technology

[0002] Core shooters, as highly efficient casting machinery, ingeniously combine high-speed sand shooting technology and hot core box curing technology. This machine mixes thermosetting resin with molding sand and injects it into the mold using high-speed sand shooting. Subsequently, hot pressing causes the molding sand to rapidly harden and solidify, thus producing a sand core. This technology not only improves production efficiency but also significantly reduces production costs while ensuring product quality.

[0003] To effectively prevent molding sand from scattering during sand blasting, specially designed dust covers are typically installed on the sand blasting nozzle. These dust covers significantly reduce dust generation, ensuring a clean working environment and protecting worker health. However, while the dust cover blocks most of the molding sand during sand blasting, a certain amount of dust still accumulates inside. After sand blasting is completed, the dust cover needs to be removed for subsequent processes. During removal, dust inside the cover may be released with the airflow, causing new dust problems. Therefore, to further reduce dust generation, it is usually necessary to wait a period of time after sand blasting to allow the dust inside the cover to settle before safely removing it. While this waiting period helps improve environmental quality, it inevitably reduces overall processing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a sand-shooting device for molding iron molds with sand coating, so as to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sand-shooting device for iron mold sand coating molding, including a sand distribution box, a sand inlet fixedly installed on the upper surface of the sand distribution box, a sand-shooting nozzle fixedly installed at the bottom of the sand distribution box, a dust cover provided on the outside of the sand-shooting nozzle, a collecting mechanism provided on the dust cover, the collecting mechanism including a screw jack fixedly installed on the dust cover, a collecting plate fixedly installed at the output end of the screw jack, a movable hole provided on the collecting plate, and a sealing ring provided in the movable hole, an installation port provided at the bottom of the dust cover, and a spraying mechanism provided at the installation port.

[0006] Preferably, an isolation sleeve is fixedly installed inside the dust cover, a linkage shaft is provided between the screw jacks, a motor frame is fixedly installed on one side of the dust cover, and a drive motor is fixedly installed on the motor frame.

[0007] Preferably, the output end of the drive motor is provided with a coupling, and the output end of the drive motor is fixedly installed on the input end of the screw jack through the coupling.

[0008] Preferably, the sand-shooting nozzle passes through the collecting plate through a movable hole, the dust cover has a through hole at its upper end, the output end of the screw jack extends into the dust cover through the through hole, the collecting plate is movably installed in the dust cover by the screw jack, and the linkage shaft passes through the sand distribution box through an isolation sleeve.

[0009] Preferably, the spraying mechanism includes a valve body fixedly installed in the installation port, a spray pipe fixedly installed on the valve body, a dust removal nozzle installed on the spray pipe, a return spring provided in the middle of the valve body, a plunger movably installed above the return spring, a push rod fixedly installed at the upper end of the plunger, and a water passage hole opened on the plunger.

[0010] Preferably, the valve body has a sliding groove, the plunger is movably mounted on the valve body through the sliding groove, and a sealing ring is fitted on the plunger.

[0011] Preferably, the valve body is installed at the bottom of the dust cover through the mounting port, one end of the return spring is connected to the bottom of the slide groove on the valve body, the other end of the return spring is connected to the plunger, the valve body is provided with a threaded port, and the spray pipe is connected to the valve body through the threaded port.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this application, after the entire equipment is moved above the mold, molding sand is injected into the mold through the sand-shooting nozzle. During the sand-shooting process, the dust cover fits tightly against the upper part of the mold, effectively reducing dust dispersion. After the molding sand is filled, the drive motor is started, which drives the screw jack to operate. The operation of the screw jack causes the collecting plate to move downwards until it reaches the bottom of the dust cover. At this point, the collecting plate concentrates the dust inside the dust cover onto the top of the mold.

[0014] 2. In this application, when the dust collection plate moves downward to the bottom of the dust cover, it applies pressure to the push rod, causing the push rod to drive the plunger downward during the pressure process. During this process, the water passage on the plunger aligns with the spray pipe, allowing water to be atomized and sprayed out through the nozzle. This mechanism causes the dust accumulated above the mold to quickly combine with the water mist, forming sludge and settling, thereby effectively reducing dust generation and improving processing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the collection mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the spraying mechanism of this utility model.

[0019] The following are the labeling elements in the diagram: 1. Dust cover; 2. Sand distribution box; 3. Sand inlet; 4. Sand spray nozzle; 5. Collection mechanism; 501. Screw jack; 502. Drive motor; 503. Motor frame; 504. Collection plate; 505. Movable hole; 506. Isolation sleeve; 507. Linkage shaft; 6. Spraying mechanism; 601. Valve body; 602. Water passage hole; 603. Push rod; 604. Return spring; 605. Plunger; 606. Spray pipe; 607. Dust removal nozzle; 7. Installation port. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a sand-shooting device for iron mold sand coating molding, including a sand distribution box 2, a sand inlet 3 fixedly installed on the upper surface of the sand distribution box 2, a sand-shooting nozzle 4 fixedly installed at the bottom of the sand distribution box 2, a dust cover 1 provided on the outside of the sand-shooting nozzle 4, a collecting mechanism 5 provided on the dust cover 1, an installation port 7 provided at the bottom of the dust cover 1, and a spraying mechanism 6 provided at the installation port 7. By using the collecting mechanism 5 and the spraying mechanism 6 together, the occurrence of dust can be further reduced.

[0022] like Figure 2 and Figure 3 As shown, the collecting mechanism 5 includes a screw jack 501 fixedly installed on the dust cover 1. A collecting plate 504 is fixedly installed at the output end of the screw jack 501. The collecting plate 504 has a movable hole 505, and a sealing ring is provided in the movable hole 505. An isolation sleeve 506 is fixedly installed inside the dust cover 1. A linkage shaft 507 is provided between the screw jacks 501. A motor frame 503 is fixedly installed on one side of the dust cover 1. A drive motor 502 is fixedly installed on the motor frame 503. A coupling is provided at the output end of the drive motor 502. The output end of the drive motor 502 is fixedly installed on the input end of the screw jack 501 through the coupling.

[0023] Specifically, when the entire equipment is moved above the mold, sand can be shot into the mold using the sand-shooting nozzle 4. During sand shooting, the dust cover 1 is tightly pressed against the upper part of the mold, effectively reducing dust generated during the sand shooting operation. Once the molding sand injection process is complete, the drive motor 502 can be started. Once the drive motor 502 starts, it will drive the screw jack 501 to start operating. After the screw jack 501 starts operating, it will further drive the collecting plate 504 to move downwards. When the collecting plate 504 moves downwards to the bottom of the dust cover 1, it will effectively collect the dust inside the dust cover 1 at the upper position of the mold.

[0024] like Figure 2 and Figure 4 As shown, the spraying mechanism 6 includes a valve body 601 fixedly installed in the installation port 7. A spray pipe 606 is fixedly installed on the valve body 601. A dust removal nozzle 607 is installed on the spray pipe 606. A return spring 604 is provided in the middle of the valve body 601. A plunger 605 is movably installed above the return spring 604. A push rod 603 is fixedly installed on the upper end of the plunger 605. A water passage hole 602 is opened on the plunger 605. A sliding groove is opened in the valve body 601. The plunger 605 is movably installed on the valve body 601 through the sliding groove, and a sealing ring is fitted on the plunger 605.

[0025] Specifically, when the collecting plate 504 moves downward to the bottom of the dust cover 1, it applies pressure to the push rod 603. Under pressure, the push rod 603 moves downward, causing the connected plunger 605 to move downward as well. As the plunger 605 descends, the water passage 602 precisely aligns with the spray pipe 606. Once aligned, water can flow smoothly to the dust removal nozzle 607. Under the action of the dust removal nozzle 607, the water is atomized into fine mist and sprayed evenly. This mist quickly combines with the dust accumulated above the mold, forming sludge, which then settles down. This process effectively reduces the generation of airborne dust, thereby improving the working environment and reducing the impact on the surrounding environment.

[0026] Working principle: First, connect the water pipe to the valve body 601. Then, move the entire device above the mold. Once above the mold, use the sand-shooting nozzle 4 to shoot sand into the mold. During sand shooting, the dust cover 1 is pressed against the top of the mold, reducing dust generation. After the molding sand is injected, start the drive motor 502. Starting the drive motor 502 will drive the screw jack 501 to operate. The screw jack 501 will then drive the collecting plate 504 downwards. When the collecting plate 504 reaches the bottom of the dust cover 1, it will collect the dust inside the dust cover 1 at the top of the mold. Furthermore, when the collecting plate 504 moves downward to the bottom of the dust cover 1, it will press down the push rod 603. During the process of the push rod 603 being pressed down, it will drive the plunger 605 to move downward, so that the water passage hole 602 on the plunger 605 is aligned with the spray pipe 606. After the water passage hole 602 is aligned with the spray pipe 606, the water will be atomized and sprayed out through the dust removal nozzle 607, so that the dust collected above the mold will quickly combine with the water mist to form sludge and settle down, further reducing the occurrence of dust.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sand-shooting device for molding iron molds with sand coating, comprising a sand distribution box (2), wherein a sand inlet (3) is fixedly installed on the upper surface of the sand distribution box (2), and a sand-shooting nozzle (4) is fixedly installed at the bottom of the sand distribution box (2), wherein a dust cover (1) is provided on the outside of the sand-shooting nozzle (4), characterized in that: The dust cover (1) is provided with a collection mechanism (5), which includes a screw jack (501) fixedly installed on the dust cover (1). A collection plate (504) is fixedly installed at the output end of the screw jack (501). A movable hole (505) is opened on the collection plate (504), and a sealing ring is provided in the movable hole (505). An installation port (7) is provided at the bottom of the dust cover (1), and a spraying mechanism (6) is provided at the installation port (7).

2. The sand-shooting device for molding iron molds with sand coating according to claim 1, characterized in that: An isolation sleeve (506) is fixedly installed inside the dust cover (1), a linkage shaft (507) is provided between the screw jacks (501), a motor frame (503) is fixedly installed on one side of the dust cover (1), and a drive motor (502) is fixedly installed on the motor frame (503).

3. The sand-shooting device for molding iron molds with sand coating according to claim 2, characterized in that: The output end of the drive motor (502) is provided with a coupling, and the output end of the drive motor (502) is fixedly installed on the input end of the screw jack (501) through the coupling.

4. The sand-shooting device for molding iron molds with sand coating according to claim 3, characterized in that: The sand-shooting nozzle (4) passes through the collecting plate (504) through the movable hole (505). The dust cover (1) has a through hole at its upper end. The output end of the screw jack (501) extends into the dust cover (1) through the through hole. The collecting plate (504) is movably installed in the dust cover (1) through the screw jack (501). The linkage shaft (507) passes through the sand distribution box (2) through the isolation sleeve (506).

5. The sand-shooting device for molding iron molds with sand coating according to claim 4, characterized in that: The spraying mechanism (6) includes a valve body (601) fixedly installed in the installation port (7), a spray pipe (606) fixedly installed on the valve body (601), a dust removal nozzle (607) installed on the spray pipe (606), a return spring (604) provided in the middle of the valve body (601), a plunger (605) movably installed above the return spring (604), a push rod (603) fixedly installed at the upper end of the plunger (605), and a water passage hole (602) opened on the plunger (605).

6. The sand-shooting device for molding iron molds with sand coating according to claim 5, characterized in that: The valve body (601) has a sliding groove, and the plunger (605) is movably installed on the valve body (601) through the sliding groove, and a sealing ring is fitted on the plunger (605).

7. The sand-shooting device for molding iron molds with sand coating according to claim 6, characterized in that: The valve body (601) is installed at the bottom of the dust cover (1) through the mounting port (7). One end of the return spring (604) is connected to the bottom of the groove on the valve body (601), and the other end of the return spring (604) is connected to the plunger (605). The valve body (601) is provided with a threaded port, and the spray pipe (606) is connected to the valve body (601) through the threaded port.

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