Core shooting equipment with cleaning structure

Abstract

The utility model relates to the technical field of core shooting machines, and provides core shooting equipment with a cleaning structure, which comprises a sand shooting plate arranged on a support frame; the swage die is arranged on the supporting frame in a relatively sliding mode, a forming space is formed in the swage die, and the swage die is configured to abut against or cancel abutting against the sand shooting plate after sliding so that the forming space can be opened or closed; the sliding seat is slidably arranged on the supporting frame; the cleaning brush is rotationally arranged on the sliding seat, and the cleaning brush is configured to abut against the sand shooting plate after the sliding seat slides, so that the cleaning brush cleans the sand shooting plate. By means of the technical scheme, the technical problem that in the prior art, when high-pressure gas is directly adopted for cleaning the sand shooting mold, part of firmly-adhered molding sand cannot be cleaned is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of core shooting machine technology, and more specifically, to a core shooting device with a cleaning structure. Background Technology

[0002] In the modern foundry industry, core shooting equipment, as a key piece of equipment for manufacturing sand cores, is widely used in the production process of various castings. Sand cores play a vital role in the casting process, as they can shape the internal shape and complex structure of the casting.

[0003] Traditional core-shooting equipment has some significant drawbacks during operation. During core shooting, sand particles inevitably remain in the sand-shooting mechanism, mold cavity, and other parts of the equipment. If these residual sand particles are not cleaned promptly, they will affect the accuracy and quality of subsequent core shots. Long-term accumulation of residual sand will also cause wear and tear on the components of the core-shooting equipment.

[0004] Existing core shooter machines with cleaning functions directly use pressurized airflow to clean the sand-shooting mold. However, using only airflow for cleaning can result in some firmly adhered molding sand not being removed, leading to incomplete cleaning. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a core shooting device with a cleaning structure, which solves the technical problem that some firmly adhered molding sand cannot be cleaned when high-pressure gas is used to clean the sand shooting mold directly in the prior art.

[0006] According to one aspect, at least one embodiment of this disclosure provides a core-shooting device with a cleaning structure for the fabrication of radiator sand molds, comprising:

[0007] Support frame;

[0008] A sand-shooting plate is mounted on the support frame;

[0009] A mold is slidably disposed on the support frame. The mold has a forming space. The mold is configured to slide and abut against or un-abut against the sand-shooting plate, so as to open or close the forming space.

[0010] A sliding seat is slidably mounted on the support frame;

[0011] A cleaning brush is rotatably mounted on the sliding seat. The cleaning brush is configured such that after the sliding seat slides, the cleaning brush abuts against the sand-shooting plate, so that the cleaning brush cleans the sand-shooting plate.

[0012] For example, in at least one embodiment of this disclosure, a core-shooting device with a cleaning structure further includes:

[0013] A first nozzle, comprising several nozzles, is disposed on the sliding seat. The first nozzle is connected to external high-pressure gas and is configured to blow and spray the sand-shooting plate when the sliding seat slides.

[0014] The second nozzle, having several of them, is disposed on the sliding seat and located on one side of the first nozzle. The second nozzle is in communication with the release agent and is configured to spray the release agent onto the sand-shooting plate when the sliding seat slides.

[0015] As a further technical solution, the mold has several sets, and also includes:

[0016] A switching frame is rotatably mounted on the support frame. Several sets of the molds are arranged circumferentially on the switching frame and slide relative to the switching frame. The switching frame is configured to change the position of the molds after rotation.

[0017] For example, in at least one embodiment of this disclosure, a core-shooting device with a cleaning structure further includes:

[0018] A lifting member is provided on the support frame, and the lifting member is configured to drive the mold to slide so that the mold abuts against or cancels contact with the sand-shooting plate.

[0019] For example, in a core-shooting device with a cleaning structure provided in at least one embodiment of this disclosure, each set of molds includes:

[0020] A first mold is slidably disposed on the switching frame, and the first mold has a first molding cavity;

[0021] A second mold is rotatably mounted on the second mold, which has a second molding cavity. The second mold is configured to rotate and flip itself so that the second molding cavity engages with the sand mold in the first molding cavity.

[0022] For example, in at least one embodiment of this disclosure, a core-shooting device with a cleaning structure further includes:

[0023] A collection hopper is provided on the sliding seat, and the cleaning brush is located inside the collection hopper. The collection hopper is used to collect the molding sand that has fallen off the cleaning brush.

[0024] For example, in a core-shooting device with a cleaning structure provided in at least one embodiment of this disclosure, the bottom of the collection hopper has a guiding slope for guiding the molding sand to fall.

[0025] For example, in a core-shooting device with a cleaning structure provided in at least one embodiment of this disclosure, the sand-shooting plate is detachably mounted on the support frame, the sand-shooting plate has a plurality of mounting grooves, and further includes:

[0026] A locking clip is detachably mounted on the support frame, and the locking clip is configured to engage with the mounting slot to fix the sand-shooting plate on the support frame.

[0027] For example, in at least one embodiment of this disclosure, a core-shooting device with a cleaning structure further includes:

[0028] A plurality of positioning blocks are arranged at circumferential intervals on the switching frame. Each of the positioning blocks corresponds one-to-one with the position of a different group of molds. Each positioning block has a limiting groove.

[0029] A positioning post is slidably mounted on the support frame, and the positioning post is configured to slide into or out of the limiting groove.

[0030] For example, in at least one embodiment of this disclosure, a core-shooting device with a cleaning structure further includes:

[0031] A drive chain is cyclically mounted on the support frame. The drive chain is fixed to the sliding seat and is used to drive the sliding seat to slide.

[0032] The beneficial effects of the embodiments disclosed herein are as follows:

[0033] In this disclosure, the cleaning brush solves the problem of incomplete cleaning by simple pressure airflow. It effectively removes firmly adhered sand particles from the core-shooting plate, greatly improving the cleaning effect and ensuring the accuracy and quality of subsequent core-shooting. Timely removal of residual sand particles from the core-shooting plate reduces wear on the plate and other related components, extending the service life of the core-shooting equipment and lowering maintenance costs. The reliable cleaning structure ensures the continuity and stability of the core-shooting process, reducing product quality problems and equipment failures caused by incomplete cleaning, thereby improving production efficiency and ensuring smooth production. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0035] Figure 1 This is a schematic diagram of the internal structure of a core-shooting device (excluding the outer casing) with a cleaning structure according to one embodiment of the present disclosure;

[0036] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0037] Figure 3 for Figure 1 A magnified view of a portion of point B in the middle;

[0038] Figure 4 This is a schematic diagram of the core-shooting device with a cleaning structure from another perspective in this disclosure.

[0039] Figure 5 For this disclosure Figure 4 Schematic diagram of the structure at point C;

[0040] Figure 6 For this disclosure Figure 4 A schematic diagram of the structure at point D.

[0041] In the diagram: 100, support frame; 200, sand-shooting plate; 300, mold; 301, molding space; 400, sliding seat; 510, cleaning brush; 520, first nozzle; 530, second nozzle; 600, switching frame; 700, lifting component; 310, first mold; 311, first molding cavity; 320, second mold; 330, second molding cavity; 410, collection hopper; 411, guide slope; 201, mounting groove; 800, locking clamp; 910, positioning block; 911, limiting groove; 920, positioning post; 420, transmission chain. Detailed Implementation

[0042] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0043] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0044] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0045] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0047] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] like Figures 1-6 The diagram illustrates the structure of a core-shooting device with a cleaning structure according to an embodiment of this disclosure. It comprises a support frame 100 and a mold 300, among other components. The support frame 100 is the fundamental support structure of the entire core-shooting device and is typically made of high-strength metal materials, such as high-quality carbon structural steel or alloy steel. It has a stable frame structure capable of bearing the weight of components such as the sand-shooting plate 200, the mold 300, and the sliding seat 400, as well as various forces generated during the core-shooting process. When the mold 300 slides to contact the sand-shooting plate 200, the forming space 301 closes, allowing sand-shooting operations to be performed. When the mold 300 slides away from the sand-shooting plate 200, the forming space 301 opens, allowing the formed sand core to be removed. The sliding seat 400 is slidably mounted on the support frame 100, providing a platform for support and movement of the cleaning brush 510. It is generally made of lightweight but high-strength aluminum alloy to reduce the overall weight of the device while ensuring sufficient strength to bear the cleaning brush 510 and the various forces it experiences during movement. The sliding connection between the sliding seat 400 and the support frame 100 adopts a guide rail slider mechanism, driven by a motor, cylinder, or chain, allowing it to slide smoothly along a specific direction on the support frame 100. The cleaning brush 510 is rotatably mounted on the sliding seat 400 and is used to clean residual sand particles on the sand-shooting plate 200. The length and hardness of the bristles are suitable for cleaning firmly adhered sand particles; longer and harder steel wire bristles can be selected.

[0049] In practical use, firstly, the mold 300 slides along the support frame 100 until it abuts against the sand-shooting plate 200, at which point the molding space 301 closes. The sand-shooting plate 200 sprays molding sand into the molding space 301 through its sand-shooting holes. The molding sand accumulates in the molding space 301 and forms the desired radiator sand mold shape. After core shooting is completed, the mold 300 slides away from the sand-shooting plate 200, the molding space 301 opens, and the molded sand core is removed. Next, the sliding seat 400 slides along the guide rail on the support frame 100 under the action of the drive device, causing the cleaning brush 510 to move to abut against the sand-shooting plate 200. At the same time, the cleaning brush 510 starts to rotate under the drive of a motor or hydraulic motor. The rotating bristles sweep the surface of the sand-shooting plate 200, brushing off residual sand particles, thereby cleaning the sand-shooting plate 200.

[0050] In some examples, multiple first nozzles 520 connected to external high-pressure gas are provided on the sliding seat 400. This is to utilize the impact force of the high-pressure gas to assist the cleaning brush 510 in cleaning the sand-shooting plate 200. When the sliding seat 400, carrying the first nozzles 520, slides to the vicinity of the sand-shooting plate 200, high-pressure gas is ejected from the first nozzles 520, blowing off loose sand particles from the surface of the sand-shooting plate 200 and some crevices, complementing the physical cleaning action of the cleaning brush 510. The brush is responsible for cleaning firmly adhered sand particles, while the high-pressure gas can clean sand particles in tiny crevices that the brush 510 cannot reach. Their combined action improves the comprehensiveness and thoroughness of the cleaning. Multiple second nozzles 530 connected to the release agent are placed on the sliding seat 400 and located to one side of the first nozzles 520 to spray the release agent onto the sand-shooting plate 200 promptly after cleaning. As the sliding seat 400 slides, the second nozzles 530 evenly spray the release agent onto the surface of the sand-shooting plate 200. The release agent can form a separating film between the sand shooting plate 200 and the molding sand, reducing the adhesion between the two. This makes it easier for the molded sand core to detach from the sand shooting plate 200 during the subsequent core shooting process, reducing the risk of sand core damage and improving the molding quality of the sand core.

[0051] In practical use, after the core injection is completed and the sand core is removed, the sliding seat 400 begins to slide towards the sand-shooting plate 200. When the sliding seat 400 approaches the sand-shooting plate 200, the first nozzle 520, under the control of the equipment control system, connects to an external high-pressure gas source. High-pressure gas is ejected from the first nozzle 520 and blown towards the sand-shooting plate 200, removing loose sand particles from the surface and crevices. Simultaneously, the cleaning brush 510 continuously rotates, physically cleaning the sand-shooting plate 200. The cleaning brush 510 and the high-pressure gas work together to thoroughly remove residual sand particles from the sand-shooting plate 200. After cleaning, the sliding seat 400 continues to slide, moving the second nozzle 530 to a suitable position. At this time, under the control of the equipment control system, the second nozzle 530 draws release agent from the release agent storage tank via a metering pump and sprays it evenly onto the surface of the sand-shooting plate 200. The release agent forms a uniform release film on the surface of the sand-shooting plate 200, preparing for the next core injection demolding process. After spraying is complete, the sliding seat 400 returns to its initial position, ready for the next cleaning and spraying operation.

[0052] In some examples, several sets of molds 300 are set up, each set containing two molds 300. The two molds are joined together to form a complete mold for fabrication. Simultaneously, in casting production, the fabrication of radiator sand molds often requires a certain time cycle. By using multiple molds 300 simultaneously, multiple sand cores can be fabricated within the same timeframe, thereby improving production efficiency. Different sets of molds 300 can perform different stages of operation simultaneously. For example, while one set of molds 300 is performing sand shooting, another set can perform core extraction, achieving parallelization of the production process and significantly improving production efficiency. The rotating switching frame 600, mounted on the support frame 100, with several sets of molds 300 arranged circumferentially on the switching frame 600 and able to slide relative to it, allows for flexible switching of the mold 300 positions. The switching frame 600 is driven to rotate by a motor or hydraulic motor. Rotation allows different sets of molds 300 to be sequentially moved to positions corresponding to the sand shooting plate 200 for sand shooting operations. Meanwhile, the sliding design of the mold 300 relative to the switching frame 600 allows the mold 300 to be moved to other positions when not performing sand shooting, facilitating operations such as cleaning and spraying of release agent, making reasonable use of equipment space and optimizing the production process.

[0053] In actual use, before the equipment starts, each mold 300 is in its initial position on the switching frame 600. One group of molds 300 is in the sand-shooting position, abutting against the sand-shooting plate 200, while the other groups of molds 300 are in a waiting or other process-performing position. The sand-shooting plate 200 sprays molding sand into the forming space 301 of the mold 300 in the sand-shooting position, completing the sand core formation. After sand-shooting is completed, the switching frame 600 begins to rotate under the action of the drive device. After rotating to a certain angle, the next group of molds 300 moves to the sand-shooting position and abuts against the sand-shooting plate 200, starting a new round of sand-shooting operation. The mold 300 that has just completed sand-shooting is rotated to the outside, ready for demolding.

[0054] In some examples, the lifting component 700 can control the contact force and position between the mold 300 and the sand-shooting plate 200, ensuring a good seal with each contact and preventing sand leakage due to loose contact, thereby improving the molding accuracy of the sand core. Simultaneously, it ensures a smooth descent of the mold 300 during separation, preventing damage to the sand core. The lifting component 700 can be of various types, commonly including hydraulic cylinders, pneumatic cylinders, or electric actuators. Hydraulic cylinders offer high output force and smooth operation, suitable for large core-shooting equipment or applications requiring high contact force; pneumatic cylinders offer rapid action and lower cost, suitable for applications with high speed requirements and relatively small loads; electric actuators offer high precision and convenient control, facilitating automated control.

[0055] In some examples, the first mold 310 is slidably mounted on the switching frame 600. When the first mold 310 moves to a designated position, it can contact the sand-shooting plate 200 through its own sliding, thereby completing sandblasting. Simultaneously, the rotation of the switching frame 600 allows the mold 300 to move between different process positions. The first forming cavity 311 is used to initially receive the molding sand sprayed by the sand-shooting plate 200, providing a basic space for the formation of the sand core. The mold 300 can flexibly switch between different working areas of the equipment, while ensuring that the sand core has a stable initial shape during the forming process. The second mold 320 is rotatably mounted on the first mold 310 and has a second forming cavity 330. It can rotate and flip to engage the second forming cavity 330 with the sand mold in the first forming cavity 311. Through the engagement of the two forming cavities, a complete sand core shape is formed.

[0056] In actual use, after sand injection is completed, the lifting member 700 retracts, and the mold 300 descends. Next, the motor or hydraulic motor driving the second mold 320 starts, rotating and flipping it via a rotating shaft. When the second mold 320 rotates to a preset angle, aligning the second molding cavity 330 with the first molding cavity 311, the motor or hydraulic motor stops rotating, and the second mold 320 engages with the first mold 310, sealing the sand mold inside and further shaping the sand core.

[0057] In some examples, the cleaning brush 510 can directly collect the falling molding sand when cleaning the sand-shooting plate 200. As the sliding seat 400 moves, the molding sand brushed off by the cleaning brush 510 during the cleaning of the sand-shooting plate 200 will fall directly into the collection hopper 410, preventing the molding sand from scattering in other parts of the equipment, keeping the internal environment of the equipment clean, and reducing the malfunctions that may be caused by the accumulation of molding sand.

[0058] In practical use, the collection hopper 410 is typically made of robust and durable materials suitable for dusty working environments. The shape of the collection hopper 410 is generally funnel-shaped or scoop-shaped with a large opening to ensure that the molding sand brushed off by the cleaning brush 510 during rotation can fall smoothly into it. The size of the collection hopper 410 is adapted to the cleaning brush 510, allowing the cleaned molding sand to fall into the collection hopper 410 below. Under the influence of gravity, the molding sand in the collection hopper 410 slides down the guide slope 411 at the bottom. Because the guide slope 411 has a certain angle, the molding sand slides down the slope and eventually falls from the discharge port to a designated location, such as a waste collection container or a recycling conveying pipeline, completing the collection and discharge process of the molding sand.

[0059] In some examples, the sand-shooting plate 200 is detachably mounted on the support frame 100. Since the sand-shooting plate 200 frequently comes into contact with molding sand during long-term use, its surface is easily worn. The detachable design allows for easy removal from the support frame 100 for repair, replacement, or cleaning when the sand-shooting plate 200 is worn or damaged, without requiring extensive disassembly of the entire device, thus improving maintenance efficiency. Several mounting slots 201 are provided on the sand-shooting plate 200, and detachable locking clips 800 engage with the mounting slots 201 to secure the sand-shooting plate 200. This connection method ensures that the sand-shooting plate 200 is firmly fixed to the support frame 100 during operation, withstanding the impact force during sand-shooting, while also facilitating quick disassembly when needed. The locking clips 800, through engagement or embedding with the mounting slots 201, tightly fix the sand-shooting plate 200 to the support frame 100, preventing displacement or loosening during operation.

[0060] In some examples, multiple positioning blocks 910 are circumferentially spaced on the switching frame 600, with each positioning block 910 corresponding one-to-one with the position of a different group of molds 300. Limiting grooves 911 are formed on the positioning blocks 910 to provide precise positioning marks for the molds 300 on the switching frame 600. When the switching frame 600 rotates, the different groups of molds 300 rotate together with the switching frame 600, and the positioning blocks 910 rotate synchronously. The position and shape of the limiting grooves 911 correspond to the requirements of the molds 300 in different process positions, providing a docking position for the positioning posts 920. The positioning posts 920 are slidably mounted on the support frame 100, and enter or leave the limiting grooves 911 by sliding. When the mold 300 rotates with the switching frame 600 to a preset position, the positioning posts 920 slide into the limiting grooves 911 under the action of the driving device, thereby limiting further rotation of the switching frame 600 and ensuring that the molds 300 remain at the required process position.

[0061] In actual use, under the action of the drive device, the positioning pin 920 slides along the preset track on the support frame 100 and inserts into the limiting groove 911 of the positioning block 910 corresponding to the mold 300. The positioning pin 920 cooperates with the limiting groove 911 to restrict the further rotation of the switching frame 600, so that the mold 300 stays at the preset sand-shooting position. At this time, the mold 300 is aligned with the sand-shooting plate 200, and the sand-shooting operation can be performed.

[0062] In some examples, the drive chain 420 provides a smooth driving force to the sliding seat 400, ensuring that the sliding seat 400 slides at a uniform speed on the support frame 100. Compared with other driving methods, chain drive has better stability and can reduce the vibration and impact of the sliding seat 400 during movement, thereby improving the uniformity of cleaning by the cleaning brush 510 against the sandblasting plate 200, as well as the accuracy of operation of the first nozzle 520 and the second nozzle 530, ensuring the consistency of cleaning and spraying effects.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A core-shooting device with a cleaning structure for making sand molds for radiators, characterized in that, include: Support frame (100); A sand-shooting plate (200) is mounted on the support frame (100); A mold (300) is slidably disposed on the support frame (100), the mold (300) having a forming space (301), the mold (300) being configured to slide and abut or release abut against the sand-shooting plate (200) to open or close the forming space (301); A sliding seat (400) is slidably mounted on the support frame (100); A cleaning brush (510) is rotatably mounted on the sliding seat (400). The cleaning brush (510) is configured such that after the sliding seat (400) slides, the cleaning brush (510) abuts against the sand-shooting plate (200) so that the cleaning brush (510) cleans the sand-shooting plate (200).

2. The core shooting device with a cleaning structure according to claim 1, characterized in that, Also includes: A plurality of first nozzles (520) are disposed on the sliding seat (400). The first nozzles (520) are in communication with external high-pressure gas. The first nozzles (520) are configured to blow the sand-shooting plate (200) when the sliding seat (400) slides. A plurality of second nozzles (530) are disposed on the sliding seat (400) and located on one side of the first nozzle (520). The second nozzles (530) are in communication with the release agent and are configured to spray the release agent onto the sand-shooting plate (200) when the sliding seat (400) slides.

3. The core-shooting device with a cleaning structure according to claim 1, characterized in that, The mold (300) has several groups, and also includes: A switching frame (600) is rotatably mounted on the support frame (100). Several sets of molds (300) are arranged circumferentially on the switching frame (600) and slide relative to the switching frame (600). The switching frame (600) is configured to change the position of the molds (300) after rotation.

4. The core-shooting device with a cleaning structure according to claim 1, characterized in that, Also includes: A lifting member (700) is disposed on the support frame (100), and the lifting member (700) is configured to drive the mold (300) to slide so that the mold (300) abuts or cancels abutment with the sand-shooting plate (200).

5. A core-shooting device with a cleaning structure according to claim 3, characterized in that, Each set of the molds (300) includes: The first mold (310) is slidably disposed on the switching frame (600), and the first mold (310) has a first molding cavity (311). The second mold (320) is rotatably disposed on the second mold (320), the second mold (320) having a second molding cavity (330), the second mold (320) being configured to rotate and flip itself so that the second molding cavity (330) engages with the sand mold in the first molding cavity (311).

6. The core shooting device with a cleaning structure according to claim 1, characterized in that, Also includes: A collection hopper (410) is provided on the sliding seat (400), and the cleaning brush (510) is located inside the collection hopper (410). The collection hopper (410) is used to collect the molding sand that the cleaning brush (510) cleans up.

7. A core-shooting device with a cleaning structure according to claim 6, characterized in that, The bottom of the collection hopper (410) has a guide slope (411) for guiding the molding sand to fall.

8. The core shooting device with a cleaning structure according to claim 1, characterized in that, The sand-shooting plate (200) is detachably mounted on the support frame (100), and the sand-shooting plate (200) has several mounting grooves (201), and further includes: A locking clip (800) is detachably mounted on the support frame (100), and the locking clip (800) is configured to engage with the mounting groove (201) to fix the sand-shooting plate (200) on the support frame (100).

9. A core-shooting device with a cleaning structure according to claim 3, characterized in that, Also includes: Positioning blocks (910) are arranged in a plurality of them at circumferential intervals on the switching frame (600). The plurality of positioning blocks (910) correspond one-to-one with the positions of different groups of molds (300). The positioning blocks (910) have limiting grooves (911). A positioning post (920) is slidably disposed on the support frame (100), and the positioning post (920) is configured to slide into or out of the limiting groove (911).

10. A core-shooting device with a cleaning structure according to claim 1, characterized in that, Also includes: A transmission chain (420) is cyclically mounted on the support frame (100). The transmission chain (420) is fixed to the sliding seat (400). The transmission chain (420) is used to drive the sliding seat (400) to slide.

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