Sand shooting device for sand mold processing

Abstract

The invention relates to the technical field of core shooters, and provides a sand shooting device for sand mold processing, which comprises at least two air duct forming occupying blocks arranged on a forming plate, the air duct forming occupying blocks are used for occupying the position of a sand mold to enable the sand mold to form an air duct, and the forming plate and the air duct forming occupying blocks are both provided with sand shooting holes. The sand shooting holes penetrate through the air duct forming occupying blocks and the forming plate, and the sand shooting holes in the two air duct forming occupying blocks are arranged in a staggered mode. The two lower molds are arranged on the frame body in a relatively sliding mode, the lower molds are provided with forming spaces, sand molds formed by the two forming spaces are buckled to form a finished sand mold, and the sand shooting holes are used for spraying molding sand so that the molding sand can enter the forming spaces; according to the technical scheme, the technical problem that the exhaust function of the original exhaust duct cannot be realized due to the fact that the exhaust duct in the sand mold is easily blocked when the sand shooting device is used for manufacturing the sand mold in the related technology is solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of core shooting machines, and in particular, to a sand shooting device for sand mold processing. Background Art

[0002] In the modern foundry industry, sand casting has become a widely used casting method due to its mature technology, relatively low cost and strong adaptability. As a key equipment in the sand mold processing process, the sand shooting device plays a vital role in the quality and production efficiency of the sand mold. The quality of its performance is directly related to the key indicators such as the compactness and uniformity of the sand mold, which in turn affects the quality and production efficiency of subsequent castings.

[0003] The sand mold is a key molding component in the casting process, and its quality will directly affect the quality of the finished product. When making a circular or quasi-circular sand mold, a split molding method is usually adopted, and half of the shape is made separately to buckle together to form a complete sand mold. Common molding sand is composed of raw sand, binder, additives and water. These components interact with each other, so that the molding sand itself has a certain viscosity, so that it can form a sand mold with a certain strength and shape during the sand shooting process. However, in the actual casting process, the sand mold will be affected by the high-temperature molten metal, and the organic matter and water in the molding sand will decompose and vaporize, thereby generating some gas. If this part of the gas is not discharged in time, it is easy to accumulate at a certain position of the sand mold, resulting in an increase in the internal pressure of the sand mold, and then causing local deformation of the sand mold. This local deformation will not only affect the dimensional accuracy of the sand mold, but may also cause defects such as pores, shrinkage, and sand inclusions in the casting, which will seriously affect the quality of the finished product after the casting is completed.

[0004] When the air permeability of the molding sand is not ideal, an exhaust duct needs to be set up to ensure that the gas can be effectively discharged. The exhaust duct can make up for the problem of insufficient air permeability of the molding sand, improve the gas discharge conditions, provide a smooth discharge channel for the gas, and reduce the gas pressure inside the sand mold. However, the exhaust duct is difficult to form during actual molding, and it is easy to collapse, resulting in blockage of the exhaust duct, which in turn causes the exhaust duct to lose its original function. Summary of the invention

[0005] In order to overcome the above-mentioned defects, an embodiment of the present disclosure provides a sand shooting device for sand mold processing, which solves the problem in the prior art that the exhaust duct in the sand mold is easily blocked when the sand shooting device is performing sand mold manufacturing, resulting in the original exhaust function of the exhaust duct cannot be realized.

[0006] According to one aspect, at least one embodiment of the present disclosure provides a sand-shooting device for sand mold processing, which is used to process molding sand into a sand mold, comprising: Frame; A forming plate, arranged on the frame body, and having a plurality of exhaust holes passing through the forming plate; There are at least two air duct forming occupying blocks, which are arranged on the forming plate. The air duct forming occupying blocks are used to occupy the position of the sand mold so that the sand mold forms an air duct. The air duct forming occupying blocks have a plurality of sand shooting holes arranged in an array at equal intervals. Both the forming plate and the air duct forming occupying blocks have sand shooting holes, which penetrate the air duct forming occupying blocks and the forming plate. The sand shooting holes on the two air duct forming occupying blocks are staggered. The lower mold has two parts, which are relatively slidably arranged on the frame, the lower mold has a molding space, and the sand molds formed by the two molding spaces are buckled to form a completed sand mold. The lower mold is configured to slide close to or away from the molding plate to open or close the molding space. After the molding space is closed, the air duct molding block is located in the molding space, the exhaust hole is connected to the molding space, and the sand shooting hole is used to spray molding sand so that the molding sand enters the molding space; There are a plurality of blocking nets which are detachably arranged in the exhaust holes, and the blocking nets are used to prevent the molding sand from leaving the molding space through the exhaust holes.

[0007] For example, at least one embodiment of the present disclosure provides a sand-shooting device for sand mold processing, which further includes: A sand storage hopper is arranged on the frame, the molding plate is detachably arranged on the sand storage hopper, a plurality of the sand shooting holes are connected to the sand storage hopper, and the sand storage hopper is used to store molding sand; There are several air inlets, which are arranged on the side wall of the sand storage hopper. The air inlets are used to spray gas into the sand storage hopper so that the molding sand is ejected from the sand shooting holes.

[0008] For example, in a sand-shooting device for sand mold processing provided by at least one embodiment of the present disclosure, the two lower molds form a group, and the lower molds have several groups, and further include: A lifting member is arranged on the frame, and the lifting member is configured to abut against the lower mold and drive the lower mold to slide after being actuated; A switching frame is rotatably arranged on the frame body, the lower mold is slidably arranged on the switching frame, a plurality of groups of the lower molds are arranged in a circle, the lifting member is located below the switching frame, and the switching frame is configured to change the positions of different groups of the lower molds after rotation, so that the lifting member drives the different groups of the lower molds to slide, and the lifting direction of the lifting member is parallel to the direction of the rotation axis of the switching frame.

[0009] For example, in a sand-shooting device for sand mold processing provided in at least one embodiment of the present disclosure, the lower mold includes: A first mold is detachably arranged on the switching frame; A snap-fit ​​frame, slidably disposed on the switching frame, and the snap-fit ​​frame is located on one side of the first mold; The second mold is rotatably arranged on the snap-fit ​​frame, and the second mold is configured to snap-fit ​​with the first mold after rotation to make two different sand mold combinations. The snap-fit ​​frame is used to drive the second mold to rise and fall to make the second mold away from the first mold.

[0010] For example, at least one embodiment of the present disclosure provides a sand-shooting device for sand mold processing, which further includes: A sliding frame, slidably disposed on the frame body, wherein the sliding direction of the sliding frame is parallel to the bottom surface of the forming plate, and the sliding frame moves closer to or away from the forming plate after sliding; An anti-blocking roller, rotatably arranged on the sliding frame; There are a plurality of cleaning blocks which are relatively arranged on the anti-blocking roller. The anti-blocking roller is configured to drive the cleaning blocks to rotate so that the cleaning blocks enter the sand shooting holes to clean the blocked sand shooting holes.

[0011] For example, at least one embodiment of the present disclosure provides a sand-shooting device for sand mold processing, which further includes: There are several movable roller sleeves, which are sleeved on the anti-blocking roller, and several cleaning blocks are detachably arranged on the movable roller sleeves, and the movable roller sleeves are provided with a mounting portion; A locking sleeve is detachably arranged on the movable roller sleeve, and the locking sleeve cooperates with the mounting portion to fix the movable roller sleeve on the anti-blocking roller.

[0012] For example, in a sand shooting device for sand mold processing provided by at least one embodiment of the present disclosure, the sand shooting hole is a long slot hole, the cleaning block is an arc-shaped block, and the cleaning block protrudes from the movable roller sleeve.

[0013] For example, in a sand shooting device for sand mold processing provided by at least one embodiment of the present disclosure, the device further includes: the air inlet is arranged obliquely and a plurality of the air inlets are arranged at intervals in a circular array.

[0014] For example, at least one embodiment of the present disclosure provides a sand-shooting device for sand mold processing, which further includes: A cleaning brush is rotatably arranged on the sliding frame, and the sliding frame drives the cleaning brush to slide so that the cleaning brush abuts against the forming plate, and the cleaning brush is used to clean the forming plate; There are several nozzles, which are arranged on the sliding frame and are used to blow high-pressure gas and release agent to the molding plate.

[0015] For example, in a sand-shooting device for sand mold processing provided by at least one embodiment of the present disclosure, the molding plate is detachably arranged on the sand storage hopper, and further comprises: There are several mounting clips which are detachably arranged on the forming plate and the sand storage hopper, and the several mounting clips are used to mount the forming plate on the sand storage hopper.

[0016] The beneficial effects of the embodiments of the present disclosure are: In the present disclosure, the gas emission problem of the sand mold during the casting process is effectively solved through the reasonable design of the exhaust hole, the air duct forming block and the sand shooting hole, the compactness and uniformity of the sand mold are improved, and the defects of the sand mold caused by gas accumulation and uneven compactness are reduced, thereby improving the quality of the sand mold and the qualified rate of the finished casting product. The setting of the air duct forming block solves the problem that the exhaust duct is difficult to form and easy to collapse, ensures the smooth flow of the exhaust channel, effectively improves the air permeability of the sand mold, and further improves the quality of the finished casting product. The sliding design of the lower mold and the detachable design of the blocking net make the filling of the molding sand, the removal of the sand mold, and the cleaning and replacement of the blocking net more convenient and quick, improve the efficiency of sand mold processing, and reduce the labor intensity of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained based on the contents of the exemplary embodiments of the present disclosure and these drawings without creative work.

[0018] Figure 1 It is a structural schematic diagram of a sand shooting device for sand mold processing in one embodiment of the present disclosure; Figure 2 is a schematic diagram of the internal structure of the present disclosure; Figure 3 It is a schematic diagram of the structure of the sand storage hopper, the forming plate, the lower mold and the sliding frame in the present invention; Figure 4 for Figure 3 A partial enlarged view of the middle A; Figure 5 It is a schematic diagram of the structure of the forming plate in the present disclosure; Figure 6 For this disclosure Figure 5 A partial enlarged view of point C in the middle; Figure 7 is a schematic diagram of the structure of the blocking net in the present disclosure; Figure 8 It is a schematic diagram of the structure of the frame body and the switching frame in the present disclosure; Fig. 9 It is a schematic diagram of the structure of the frame and the lifting member in the present disclosure; Fig.10 It is a schematic diagram of the structure of the switching frame in the present disclosure; Fig.11 For this disclosure Fig.10 The structural diagram at B in the middle; Fig.12 It is a schematic diagram of the structure of the sliding frame in the present disclosure; Fig.13 It is a schematic diagram of the structure of the movable roller sleeve and the locking sleeve in the present disclosure; Fig.14 It is a schematic diagram of the structure of the first mold and the second mold in the present disclosure.

[0019] In the figure: 100, frame, 200, forming plate, 210, exhaust hole, 300, air duct forming block, 310, sand shooting hole, 400, lower mold, 410, forming space, 500, blocking net, 600, sand storage hopper, 610, air inlet, 700, lifting part, 800, switching frame, 420, first mold, 430, snap-fit ​​frame, 440, second mold, 900, sliding frame, 910, anti-blocking roller, 920, cleaning block, 930, movable roller sleeve, 931, installation part, 940, locking sleeve, 950, cleaning brush, 960, nozzle, 970, installation clamp. DETAILED DESCRIPTION

[0020] The present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0021] In order to simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0022] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0023] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0025] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] like Figure 1 to Figure 14 As shown, it shows a sand shooting device for sand mold processing in one embodiment of the present disclosure. In the sand casting process of the foundry industry, the exhaust duct in the sand mold is easily blocked, resulting in the inability to realize the exhaust function of the original exhaust duct. In this solution, the collaborative work of the forming plate, the air duct forming block 300, the lower mold 400 and the blocking net 500 can improve the quality of the sand mold and ensure the quality of the cast product.

[0027] In this solution, the frame 100 is the supporting structure of the entire sand-shooting device, and has sufficient strength and stability to bear the weight of the molding plate, the lower mold 400 and other components, and provide a basis for their movement and installation. The molding plate is relatively arranged on the frame 100, and the exhaust holes 210 on its surface are used to discharge the gas generated inside the sand mold during the casting process. The exhaust holes 210 penetrate the molding plate and provide an exhaust channel for the gas, which helps to reduce the internal pressure of the sand mold and avoid local deformation of the sand mold due to gas accumulation, thereby ensuring the size of the sand mold and the quality of the cast product. The air duct molding block 300 is arranged on the molding plate and is used to form an air duct in the sand mold. The sand-shooting holes 310 on its surface work together with the sand-shooting holes 310 on the molding plate to spray the molding sand into the molding space 410 of the lower mold 400. The sand-shooting holes 310 on the two air duct molding blocks 300 are staggered, so that the molding sand can be more evenly distributed in the molding space 410, thereby improving the compactness and uniformity of the sand mold. At the same time, the air duct forming block 300 occupies a specific position of the sand mold, and forms an air duct after the sand mold is formed, providing a smoother channel for gas discharge. The setting of the air duct forming block 300 solves the problem that the exhaust duct is difficult to form and easy to collapse, ensures the smooth flow of the exhaust duct, and effectively improves the air permeability of the sand mold. The staggered setting of the sand shooting holes 310 improves the quality of the sand mold, makes the strength and compactness of the sand mold more uniform in various parts, and reduces the defects of the sand mold caused by uneven compactness.

[0028] The two lower molds 400 are relatively slidably arranged on the frame 100, and the molding space 410 thereof is used to accommodate the molding sand and form the half body of the sand mold. The sliding of the lower mold 400 can realize the opening and closing of the molding space 410, which is convenient for loading the molding sand and removing the sand mold. When the molding space 410 is closed, the air duct molding block 300 is located therein, and the sand shooting hole 310 sprays the molding sand into the molding space 410, forming a sand mold half body with a specific shape and structure in the molding space 410, and the two sand mold halves are buckled to form a complete sand mold. The blocking net 500 is detachably arranged in the exhaust hole 210, which can prevent the molding sand from flowing out of the exhaust hole 210 during the sand shooting process, and ensure that the molding sand can be fully accumulated in the molding space 410 to form a sand mold. At the same time, the blocking net 500 does not affect the discharge of gas through the exhaust hole 210, thereby ensuring the smoothness of the gas discharge inside the sand mold. The blocking net 500 effectively solves the problem of molding sand leakage and ensures the molding quality of the sand mold. The detachable design facilitates the removal of the blocking net 500 after the sand mold is formed, as well as the cleaning and replacement of the blocking net 500, thereby improving the maintenance convenience of the device.

[0029] In actual use, the air duct forming block 300 is installed on the forming plate to ensure that the sand shooting holes 310 on the two air duct forming blocks 300 are staggered. The blocking net 500 is installed in the exhaust hole 210 to ensure that the installation is firm. The lower mold 400 is driven by a motor to slide to the open position to facilitate the loading of molding sand. The molding sand is transported to the sand shooting holes 310 of the sand shooting device, and the molding sand is sprayed into the molding space 410 of the lower mold 400 through the molding plate and the sand shooting holes 310 on the air duct forming block 300. Due to the staggered arrangement of the sand shooting holes 310 on the two air duct forming blocks 300, the molding sand is more evenly distributed in the molding space 410, and gradually accumulates to form a sand mold half with a certain degree of compactness. During the sand shooting process, the blocking net 500 prevents the molding sand from flowing out of the exhaust hole 210, ensuring that the molding sand is fully accumulated in the molding space 410. During the casting process, the gas generated inside the sand mold is discharged through the air duct. The blocking net 500 allows gas to pass through, effectively preventing the leakage of molding sand, thereby ensuring the integrity of the sand mold and the smooth progress of the casting process.

[0030] In some examples, the sand storage hopper 600 is arranged on the frame 100 as a storage container for molding sand, providing a continuous supply of molding sand for the sand shooting process. The sand storage hopper 600 is detachably connected to the molding plate, which is convenient for replacing or maintaining the molding plate when necessary. The sand shooting hole 310 is connected to the sand storage hopper 600, so that the molding sand in the sand storage hopper 600 can be smoothly ejected into the molding space 410 of the lower mold 400 through the sand shooting hole 310. The sand storage hopper 600 ensures that the molding sand can be supplied stably and evenly. Adequate storage of molding sand ensures the continuity of the sand shooting process, reduces work interruptions caused by frequent addition of molding sand, and improves production efficiency. The detachable connection method facilitates the inspection and cleaning of the molding plate and related components, reducing the maintenance difficulty and cost of the equipment. Multiple air inlets 610 are arranged on the side wall of the sand storage hopper 600, and the molding sand is ejected from the sand shooting hole 310 by blowing gas into the sand storage hopper 600 using the pressure and flow rate of the gas. The air inlet 610 can ensure that the molding sand can be ejected evenly and powerfully from the sand shooting hole 310, thereby improving the effect of sand shooting and the quality of the sand mold. The method of blowing gas can effectively control the ejection speed and flow rate of the molding sand, so that the molding sand obtains sufficient power at the sand shooting hole 310, thereby more evenly filling the molding space 410 of the lower mold 400, thereby improving the compactness and uniformity of the sand mold. By adjusting the gas pressure and flow rate of the air inlet 610, it can meet the needs of different types of molding sand and different sand mold processing processes.

[0031] In actual use, the molding sand is sent into the sand storage hopper 600, and the external gas source provides compressed gas to the air inlet 610 through a pipeline, and the gas is sprayed into the sand storage hopper 600 at a certain angle from the air inlet 610. The sprayed gas forms an airflow in the sand storage hopper 600, pushing the molding sand to flow toward the sand shooting hole 310. The molding sand can be evenly pushed by the gas, ejected from the sand shooting hole 310, and enter the molding space 410 of the lower mold 400.

[0032] In some examples, the lifting member 700 is arranged on the frame 100 to provide power for the sliding of the lower mold 400. When a certain group of lower molds 400 needs to be operated, the lifting member 700 moves, abuts against the lower mold 400 and drives it to slide in a specific direction. The lifting direction of the lifting member 700 is parallel to the direction of the rotation axis of the switching frame 800, ensuring that the lower mold 400 can be accurately pushed to move it close to or away from the molding plate to complete the corresponding sand mold processing process. The lifting member 700 realizes the automatic control of the movement of the lower mold 400, which is more efficient than manual operation. It can move the lower mold 400 to a specified position, improve the speed and accuracy of sand mold processing, reduce the errors that may be caused by manual intervention, and improve the overall production efficiency. The switching frame 800 is rotatably arranged on the frame 100, and multiple groups of lower molds 400 are slidably arranged on the switching frame 800 and arranged in a circle. The rotation of the switching rack 800 can change the positions of different groups of lower molds 400, so that the lifting parts 700 can drive different groups of lower molds 400 to slide in turn, realizing the recycling of multiple groups of lower molds 400. This design allows other lower molds 400 to be prepared while one group of lower molds 400 is being processed, thereby improving the utilization rate and production efficiency of the equipment. The switching rack 800 realizes the switching of multiple groups of lower molds 400, reduces the idle time of the equipment, and improves the overall production efficiency. The circular arrangement of the lower molds 400 makes the equipment structure more compact and occupies less space, while facilitating the operator to operate and manage the lower molds 400.

[0033] In some examples, the first mold 420 is detachably arranged on the switching frame 800 as a part of the sand mold forming mold. The detachable design can be replaced according to the shape and size requirements of different sand molds to adapt to various sand mold processing tasks. During the sand mold making process, the first mold 420 cooperates with the second mold 440 to form a complete sand mold together. The snap-fit ​​frame 430 is slidably arranged on the switching frame 800 and is located on one side of the first mold 420. Its main function is to realize the lifting and lowering of the second mold 440 and the snap-fit ​​operation with the first mold 420. The sliding design of the snap-fit ​​frame 430 facilitates the adjustment of the relative position of the second mold 440 and the first mold 420 to achieve snap-fit. At the same time, by driving the second mold 440 to lift and lower, it is convenient to move the second mold 440 away from the first mold 420 after the sand mold is formed, so as to facilitate the removal of the sand mold. The flexible snap-fit ​​and separation of the second mold 440 and the first mold 420 is realized, and the efficiency of sand mold making is improved. The sliding and lifting functions of the snap-fit ​​frame 430 enable the operator to conveniently control the assembly and disassembly process of the sand mold, reduce the difficulty and error of manual operation, and improve the overall production efficiency. The second mold 440 is rotatably set on the snap-fit ​​frame 430, and is snapped with the first mold 420 by rotation to form a complete sand mold. At the same time, it is also convenient to separate the second mold 440 from the snap-fit ​​state with the first mold 420 after the sand mold is formed, so as to facilitate the removal of the sand mold.

[0034] In some examples, the sliding frame 900 is slidably arranged on the frame body 100, and its sliding direction is parallel to the bottom surface of the molding plate. If the sand shooting hole 310 is blocked by molding sand, the sliding frame 900 provides a position adjustment function for the anti-blocking roller 910 and the cleaning block 920 to approach the sand shooting hole 310 by approaching or moving away from the molding plate. The sliding frame 900 can adapt to the sand shooting holes 310 in different positions to ensure that the cleaning work fully covers all the sand shooting holes 310. The positioning of the sand shooting holes 310 by the cleaning device is realized, and the cleaning efficiency is improved. By flexibly adjusting the position, each sand shooting hole 310 can be cleaned without disassembling the molding plate, which reduces the equipment downtime and ensures the efficient operation of the sand shooting device. The anti-blocking roller 910 is rotatably arranged on the sliding frame 900, and as a carrier of the cleaning block 920, it drives the cleaning block 920 to enter the sand shooting hole 310 for cleaning through its own rotation. The rotation design of the anti-blocking roller 910 enables the cleaning block 920 to dredge the inner wall of the sand shooting hole 310 in a rotating manner. A plurality of cleaning blocks 920 are relatively arranged on the anti-blocking roller 910 , and enter the sand-shooting hole 310 as the anti-blocking roller 910 rotates, and clean the blocked sand-shooting hole 310 by using its own shape and material characteristics.

[0035] In some examples, a plurality of movable roller sleeves 930 are sleeved on the anti-blocking roller 910 as a direct mounting carrier of the cleaning block 920, providing a flexibly replaceable platform for the cleaning block 920. The mounting portion on the movable roller sleeve 930 is used to cooperate with the cleaning block 920 and the locking sleeve 940 to realize the detachable installation of the cleaning block 920 and the fixation of the movable roller sleeve 930 on the anti-blocking roller 910. This design makes it unnecessary to directly operate the anti-blocking roller 910 when replacing the cleaning block 920, thereby improving the convenience and efficiency of replacing the cleaning block 920. At the same time, the movable roller sleeve 930 separates the cleaning block 920 from the anti-blocking roller 910, reducing the direct wear of the cleaning block 920 on the anti-blocking roller 910 during the cleaning process, and extending the service life of the anti-blocking roller 910. The flexibility and efficiency of replacing the cleaning block 920 are improved, and it is convenient for operators to quickly replace cleaning blocks 920 of different specifications or wear according to the actual conditions such as the blockage degree of the sand shooting hole 310 and the characteristics of the molding sand. The protective effect of the movable roller sleeve 930 on the anti-blocking roller 910 reduces the wear rate of the anti-blocking roller 910, reduces the equipment maintenance cost, and prolongs the overall service life of the cleaning device. The locking sleeve 940 is detachably arranged on the movable roller sleeve 930, and cooperates with the mounting portion of the movable roller sleeve 930 to firmly fix the movable roller sleeve 930 on the anti-blocking roller 910. During the operation of the equipment, the locking sleeve 940 can prevent the movable roller sleeve 930 from sliding or rotating on the anti-blocking roller 910, ensuring that the cleaning block 920 can work stably when cleaning the sand shooting hole 310. When the movable roller sleeve 930 needs to be replaced or the anti-blocking roller 910 needs to be maintained, the locking sleeve 940 can be easily disassembled and the movable roller sleeve 930 can be removed. The stability of the movable roller sleeve 930 on the anti-blocking roller 910 is ensured, the position of the cleaning block 920 during the cleaning process is ensured, and the cleaning effect is improved. The design of the detachable locking sleeve 940 makes the replacement of the movable roller sleeve 930 and the maintenance of the anti-blocking roller 910 more convenient, reduces the equipment downtime and improves the maintainability of the equipment.

[0036] In some examples, the sand shooting holes 310 are designed as long slot holes. Compared with the circular sand shooting holes 310, the long slot holes can increase the injection coverage of the molding sand to a certain extent, so that the molding sand is more evenly distributed in the molding space 410, which helps to improve the compactness and uniformity of the sand mold. The length and width of the long slot holes are designed according to factors such as the shape and size of the sand mold and the fluidity of the molding sand to meet the needs of different sand mold processing. The design of the long slot holes improves the injection effect of the molding sand, so that each part of the sand mold can be filled with molding sand more evenly during the molding process, and reduces the defects of the sand mold caused by uneven distribution of the molding sand, such as local looseness or over-compactness, thereby improving the quality of the sand mold, which is conducive to the subsequent casting of high-quality castings.

[0037] In some examples, the air inlet 610 is tilted to change the direction of the injected gas entering the sand storage hopper 600. The tilted air inlet 610 allows the gas to impact the molding sand at a certain angle. This impact method can break the possible accumulation state of the molding sand in the sand storage hopper 600, and promote the molding sand to form a more reasonable flow path in the sand storage hopper 600. By adjusting the tilt angle of the air inlet 610, the direction and magnitude of the force of the gas on the molding sand can be controlled, so that the molding sand can flow more easily to the sand shooting hole 310, thereby improving the transportation efficiency of the molding sand. The tilted air inlet 610 enhances the driving effect of the gas on the molding sand, avoids the local accumulation of the molding sand in the sand storage hopper 600, and makes the flow of the molding sand in the sand storage hopper 600 smoother and more uniform. This helps to improve the uniformity of the molding sand ejected from the sand shooting hole 310, thereby improving the compactness and quality of the sand mold, and reducing the defects of the sand mold caused by uneven distribution of the molding sand. A plurality of air inlets 610 are arranged in a circular array at intervals on the side wall of the sand storage hopper 600. This arrangement enables the gas to act evenly on the molding sand from multiple directions. The arrangement of the circular array ensures that the molding sand at each position in the sand storage hopper 600 can be effectively pushed by the gas, avoiding the occurrence of dead corners where the gas acts. The air inlets 610 are arranged at intervals to control the distribution density of the gas. According to the flow requirements of the molding sand in the sand storage hopper 600, the spacing between the air inlets 610 is reasonably adjusted so that the molding sand can be evenly pushed in all directions, thereby improving the uniformity and stability of the flow of the molding sand.

[0038] In some examples, the cleaning brush 950 is rotatably arranged on the sliding frame 900. With the help of the sliding function of the sliding frame 900, the cleaning brush 950 can move along the surface of the molding plate and abut against it. Through its own rotation, the bristles of the cleaning brush 950 are in full contact with the surface of the molding plate, and the friction of the bristles is used to clean the molding sand, impurities, etc. on the surface of the molding plate. During the cleaning process, the bristles of the rotating cleaning brush 950 can continuously change the contact position with the molding plate, improve the cleaning effect, and avoid affecting the cleaning efficiency due to local wear of the bristles. Effectively clean the residues on the surface of the molding plate, keep the molding plate clean, and prevent the residual molding sand and impurities from affecting the normal operation of the sand shooting hole 310 and the molding quality of the sand mold. The rotation and sliding design of the cleaning brush 950 improves the cleaning efficiency, reduces the workload and time of manual cleaning, and can also clean the surface of the molding plate more comprehensively and carefully to ensure the consistency of the cleaning effect. Multiple nozzles 960 are arranged on the sliding frame 900. As the sliding frame 900 moves, the nozzles 960 can cover different areas of the molding plate. The nozzle 960 has the function of blowing high-pressure gas and mold release agent. The high-pressure gas can further remove the fine particles of impurities remaining on the surface of the molding plate and around the sand-shooting holes 310, making the surface of the molding plate cleaner. The spraying of the mold release agent forms a layer of mold release film on the surface of the molding plate, which reduces the adhesion between the sand mold and the molding plate, facilitates the demoulding of the sand mold, and reduces the damage of the sand mold during the demoulding process.

[0039] In some examples, the mounting clip 970 provides a reliable and easy-to-operate connection method to removably fix the forming plate to the sand storage hopper 600. Each mounting clip 970 generates sufficient clamping force by cooperating with specific parts on the forming plate and the sand storage hopper 600 to ensure that the forming plate is connected to the sand storage hopper 600 during the sand shooting process without loosening or displacement. At the same time, the detachable nature of the mounting clip 970 makes it easy to remove it from the forming plate and the sand storage hopper 600 when the forming plate needs to be replaced or maintained and cleaned. The quick installation and disassembly function achieved by the mounting clip 970 greatly improves the efficiency of equipment maintenance. When the forming plate needs to be cleaned, repaired or replaced, the operation can be completed quickly, reducing equipment downtime, ensuring production continuity, and reducing production losses caused by equipment maintenance.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, which should be included in the scope of the claims of the present disclosure.

Claims

1. A sand-shooting device for sand mold processing, used for processing molding sand into sand molds, characterized in that: include: Frame (100); A forming plate (200) is arranged on the frame (100) relative to the forming plate (200), the forming plate (200) having a plurality of exhaust holes (210) penetrating the forming plate (200); At least two air duct forming occupying blocks (300) are arranged on the forming plate (200); the air duct forming occupying blocks (300) are used to occupy the position of the sand mold so that the sand mold forms an air duct; the air duct forming occupying blocks (300) are provided with a plurality of sand shooting holes (310) arranged in an array; the forming plate (200) and the air duct forming occupying blocks (300) are provided with sand shooting holes (310); the sand shooting holes (310) penetrate the air duct forming occupying blocks (300) and the forming plate (200); The lower mold (400) has two parts, which are relatively slidably arranged on the frame (100). The lower mold (400) has a molding space (410). The sand mold formed by the two molding spaces (410) is buckled to form a completed sand mold. The lower mold (400) is configured to slide closer to or farther away from the molding plate (200) to open or close the molding space (410). After the molding space (410) is closed, the air duct molding occupying block (300) is located in the molding space (410), the exhaust hole (210) is connected to the molding space (410), and the sand shooting hole (310) is used to spray molding sand so that the molding sand enters the molding space (410).

2. A sand shooting device for sand mold processing according to claim 1, characterized in that: The sand-shooting holes (310) on the two air duct forming occupying blocks (300) are staggered, and further include: A plurality of blocking nets (500) are detachably arranged in the exhaust hole (210), and the blocking nets (500) are used to prevent molding sand from leaving the molding space (410) through the exhaust hole (210); A sand storage hopper (600) is arranged on the frame (100); the molding plate (200) is detachably arranged on the sand storage hopper (600); a plurality of the sand shooting holes (310) are connected to the sand storage hopper (600); and the sand storage hopper (600) is used to store molding sand; There are a plurality of air inlets (610) disposed on the side wall of the sand storage hopper (600), and the air inlets (610) are used to inject gas into the sand storage hopper (600) so that the molding sand is ejected from the sand ejection holes (310).

3. A sand shooting device for sand mold processing according to claim 1, characterized in that: The two lower molds (400) form a group, and the lower molds (400) have several groups and further include: A lifting member (700) is arranged on the frame (100), and the lifting member (700) is configured to abut against the lower mold (400) and drive the lower mold (400) to slide after being actuated; A switching frame (800) is rotatably arranged on the frame body (100); the lower molds (400) are slidably arranged on the switching frame (800); a plurality of groups of the lower molds (400) are arranged in a circle; the lifting member (700) is located below the switching frame (800); the switching frame (800) is configured to change the position of each group of the lower molds (400) after rotation, so that the lifting member (700) drives a group of the lower molds (400) to slide; and the lifting direction of the lifting member (700) is parallel to the direction of the rotation axis of the switching frame (800).

4. A sand shooting device for sand mold processing according to claim 3, characterized in that: The lower mold (400) comprises: A first mold (420) is detachably arranged on the switching frame (800); A snap-fit ​​frame (430) is slidably disposed on the switching frame (800), and the snap-fit ​​frame (430) is located on one side of the first mold (420); The second mold (440) is rotatably arranged on the snap-fit ​​frame (430), and the second mold (440) is configured to snap-fit ​​with the first mold (420) after rotation to form a combination of two different sand molds. The snap-fit ​​frame (430) is used to drive the second mold (440) to rise and fall, so that the second mold (440) is away from the first mold.

5. A sand shooting device for sand mold processing according to claim 1, characterized in that: Also includes: A sliding frame (900) is slidably disposed on the frame body (100), wherein the sliding direction of the sliding frame (900) is parallel to the bottom surface of the molding plate (200), and the sliding frame (900) moves closer to or farther from the molding plate (200) after sliding; An anti-blocking roller (910) rotatably disposed on the sliding frame (900); A plurality of cleaning blocks (920) are arranged relatively on the anti-blocking roller (910), and the anti-blocking roller (910) is configured to be able to drive the cleaning block (920) to rotate, so that the cleaning block (920) enters the sand shooting hole (310) to clean the blocked sand shooting hole (310).

6. A sand-shooting device for sand mold processing according to claim 5, characterized in that: Also includes: A plurality of movable roller sleeves (930) are sleeved on the anti-blocking roller (910); a plurality of cleaning blocks (920) are detachably arranged on the movable roller sleeves (930); and a mounting portion (931) is provided on the movable roller sleeves (930); A locking sleeve (940) is detachably arranged on the movable roller sleeve (930), and the locking sleeve (940) cooperates with the mounting portion (931) to fix the movable roller sleeve (930) on the anti-blocking roller (910).

7. A sand shooting device for sand mold processing according to claim 6, characterized in that: The sand-shooting hole (310) is a long slotted hole, the cleaning block (920) is an arc-shaped block, and the cleaning block (920) protrudes from the movable roller sleeve (930).

8. A sand shooting device for sand mold processing according to claim 2, characterized in that: The air inlets (610) are arranged obliquely, and a plurality of the air inlets (610) are arranged at intervals in a circular array.

9. A sand shooting device for sand mold processing according to claim 5, characterized in that: Also includes: a cleaning brush (950) rotatably disposed on the sliding frame (900), the sliding frame (900) driving the cleaning brush (950) to slide so that the cleaning brush (950) abuts against the forming plate (200), and the cleaning brush (950) is used to clean the forming plate (200); There are a plurality of spray heads (960) disposed on the sliding frame (900), and the spray heads (960) are used to spray high-pressure gas and a release agent toward the molding plate (200).

10. A sand shooting device for sand mold processing according to claim 1, characterized in that: The molding plate (200) is detachably arranged on the sand storage hopper (600), and further comprises: A plurality of mounting clips (970) are detachably arranged on the molding plate (200) and the sand storage hopper (600); the plurality of mounting clips (970) are used to mount the molding plate (200) on the sand storage hopper (600).

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