Double-sand-shooting automatic core shooter for metal casting

Abstract

The utility model relates to the technical field of core shooters, one embodiment of the utility model provides a metal casting double-sand-shooting automatic core shooter, the metal casting double-sand-shooting automatic core shooter comprises a base, the bottom of an inner cavity of the base is fixedly connected with a supporting seat, and the top of the supporting seat is fixedly connected with a first motor. When a first motor starts to operate, a rotating shaft drives a rotating rod to rotate, so that the rotating rod extrudes and pushes a sleeve rod, the sleeve rod drives a rectangular plate to move upwards, and at the moment, under the limiting effect of a base, four ejector rods vertically move upwards along the interior of a lower mold; and finally, the metal casting located in the lower die is ejected out, the function of facilitating discharging is achieved, the situation that stress of the bottom of the metal casting is concentrated and bending deformation occurs is avoided through the design of the four ejector rods, and through the technical scheme, the technical problem that in the prior art, discharging is inconvenient is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of core shooting machine technology, and more specifically, to an automatic double-sand core shooting machine for metal castings. Background Technology

[0002] Core shooters are specialized equipment used in the foundry industry for the efficient manufacture of sand cores. Their core function is to use compressed air to inject core sand mixed with binder into the core box cavity at high speed, and then form a high-precision sand core through heating or chemical curing. The equipment is divided into two process types: hot core box and cold core box. Core shooters are characterized by automation, high speed and high precision, and are especially suitable for the mass production of complex thin-walled sand cores. They are widely used in the field of precision castings such as automobile engines and hydraulic components, significantly improving casting efficiency and sand core quality. They are one of the key pieces of equipment in modern casting production lines.

[0003] In the existing technology, operators often use corresponding core shooters to quickly produce sand cores during the metal casting process. However, in actual use, although existing core shooters have the basic function of producing sand cores, when removing the parts, the metal castings are prone to sticking to the mold and are difficult to remove. If they are forcibly removed, the metal castings may be damaged, affecting product quality. Therefore, improvements are needed. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide an automatic core shooter for metal castings with dual sand shooting, which solves the technical problem of inconvenient material discharge in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides an automatic double-shot sand core shooter for metal castings, including a base, a support seat fixedly connected to the bottom of the inner cavity of the base, a first motor fixedly connected to the top of the support seat, a rotating shaft fixedly sleeved at the other end of the output shaft of the first motor, a rotating rod fixedly sleeved at the other end of the rotating shaft, a sleeve rod movably connected to the outer surface of the rotating rod, a rectangular plate fixedly connected to the top of the sleeve rod, and ejector rods fixedly connected to the four corners of the top of the rectangular plate, a lower mold movably connected to the top of the base, and the top of the ejector rod sequentially penetrating the base and the lower mold and extending into the interior of the lower mold.

[0006] As a preferred technical solution of this disclosure, a vertical plate is fixedly connected to the top of the base, a second motor is fixedly connected to the top of the vertical plate, a threaded rod is fixedly sleeved at the other end of the output shaft of the second motor, and sliding grooves are provided on both the left and right sides of the top of the base.

[0007] As a preferred technical solution of this disclosure, the other end of the threaded rod passes through the vertical plate and extends into the interior of the vertical plate and is movably sleeved with the interior of the vertical plate, and a moving block is threadedly sleeved on the outer surface of the threaded rod.

[0008] As a preferred embodiment of this disclosure, a rectangular groove is provided on the front of the vertical plate, and the back of the moving block is movably connected to the interior of the rectangular groove.

[0009] As a preferred embodiment of this disclosure, the moving block is hinged with diagonal rods on both its left and right sides, and a clamping plate is hinged to the other end of each diagonal rod. The bottom of the clamping plate is movably connected to the top of the base.

[0010] As a preferred technical solution of this disclosure, the bottom of the clamping plate is fixedly connected to a limiting block, the inner side of the clamping plate is movably connected to the outer surface of the lower mold, and the outer surface of the limiting block is movably connected to the inner surface of the top of the slide groove.

[0011] As a preferred technical solution of this disclosure, a fixing rod is fixedly connected to each of the four corners of the top of the base, a top plate is fixedly connected to the top of the fixing rod, and a pneumatic cylinder is fixedly connected to the left and right sides of the top of the top plate. The bottom of the pneumatic cylinder penetrates through the top plate and extends to the bottom of the top plate and is fixedly connected to a movable plate. The interior of the movable plate is movably sleeved with the outer surface of the fixing rod.

[0012] As a preferred technical solution of this disclosure, the top of the top plate is fixedly connected to the core shooting machine body, and the left and right sides of the bottom of the core shooting machine body are fixedly connected to telescopic hoses. The bottom end of the telescopic hoses penetrates the top plate and extends to the bottom of the top plate and is fixedly connected to the spray head.

[0013] As a preferred embodiment of this disclosure, an upper mold is fixedly sleeved on the outer surface of the spray head, and the upper mold is fixedly installed at the bottom of the movable plate.

[0014] As a preferred embodiment of this disclosure, the number of fixing rods is four, and the outer surfaces of the four fixing rods are smooth.

[0015] The beneficial effects of the embodiments disclosed herein are as follows:

[0016] 1. In this disclosure, a rotating shaft, a rotating rod, a sleeve rod, a rectangular plate, and an ejector rod are provided. When the first motor starts running, the rotating shaft will drive the rotating rod to rotate, thereby causing the rotating rod to squeeze and push the sleeve rod, which in turn causes the sleeve rod to drive the rectangular plate to move upward. At this time, under the limiting action of the base, the four ejector rods will move vertically upward along the inside of the lower mold, and finally eject the metal casting located inside the lower mold, thus achieving the function of easy material discharge. In addition, the design of the four ejector rods also avoids the bottom of the metal casting from being stressed and bent or deformed.

[0017] 2. This disclosure incorporates a moving block, inclined rods, clamping plates, a sliding groove, and limiting blocks. When the second motor starts running, the threaded rod rotates, causing the moving block to move vertically downwards under the limiting action of the vertical plate. This, in turn, causes the two inclined rods to move. Under the limiting action of the sliding groove, the two clamping plates drive the two limiting blocks to move horizontally in opposite directions, ultimately releasing the fixing effect on the lower mold. This facilitates the disassembly and assembly of the lower mold, improves the efficiency of the operator in disassembling and assembling the lower mold, and reduces the operator's labor intensity. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure;

[0020] Figure 2 for Figure 1 A cross-sectional view of the movable plate in the embodiment;

[0021] Figure 3 for Figure 1 A cross-sectional view of the upper mold in the embodiment;

[0022] Figure 4 for Figure 1 A cross-sectional view of the moving block in the embodiment;

[0023] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0024] In the diagram: 1. Base; 2. Support seat; 3. First motor; 4. Rotating shaft; 5. Rotating rod; 6. Sleeve rod; 7. Rectangular plate; 8. Ejector rod; 9. Lower mold; 10. Vertical plate; 11. Second motor; 12. Threaded rod; 13. Moving block; 14. Diagonal rod; 15. Clamping plate; 16. Slide groove; 17. Limiting block; 18. Fixing rod; 19. Top plate; 20. Pneumatic cylinder; 21. Movable plate; 22. Core shooting machine body; 23. Telescopic hose; 24. Spray head; 25. Upper mold; 26. Rectangular groove. Detailed Implementation

[0025] 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.

[0026] 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."

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] like Figures 1-5As shown, it illustrates an automatic double-shot sand core shooter for metal castings according to an embodiment of the present disclosure, including a base 1, a support seat 2 fixedly connected to the bottom of the inner cavity of the base 1, a first motor 3 fixedly connected to the top of the support seat 2, a rotating shaft 4 fixedly sleeved at the other end of the output shaft of the first motor 3, a rotating rod 5 fixedly sleeved at the other end of the rotating shaft 4, a sleeve rod 6 movably connected to the outer surface of the rotating rod 5, a rectangular plate 7 fixedly connected to the top of the sleeve rod 6, and ejector rods 8 fixedly connected to the four corners of the top of the rectangular plate 7. A lower mold 9 is movably connected to the top of the base 1, and the top of the ejector rod 8 passes through the base 1 and the lower mold 9 in sequence and extends into the interior of the lower mold 9.

[0032] When the first motor 3 starts running, it will cause the rotating shaft 4 to drive the rotating rod 5 to rotate, thereby causing the rotating rod 5 to squeeze and push the sleeve rod 6, causing the sleeve rod 6 to drive the rectangular plate 7 to move upward. At this time, under the limiting action of the base 1, the four ejector rods 8 will move vertically upward along the inside of the lower mold 9, and finally eject the metal casting located inside the lower mold 9.

[0033] In some examples, a vertical plate 10 is fixedly connected to the top of the base 1, a second motor 11 is fixedly connected to the top of the vertical plate 10, a threaded rod 12 is fixedly sleeved at the other end of the output shaft of the second motor 11, and sliding grooves 16 are provided on both the left and right sides of the top of the base 1.

[0034] When the second motor 11 starts running, it will cause the threaded rod 12 to rotate.

[0035] In some examples, the other end of the threaded rod 12 passes through the vertical plate 10 and extends into the interior of the vertical plate 10 and is movably sleeved with the interior of the vertical plate 10, and the outer surface of the threaded rod 12 is threaded with a moving block 13.

[0036] When the threaded rod 12 starts to rotate, it will cause the moving block 13 to move up and down.

[0037] In some examples, the front of the vertical plate 10 has a rectangular groove 26, and the back of the moving block 13 is movably connected to the interior of the rectangular groove 26.

[0038] Due to the limiting effect of the rectangular groove 26, the moving block 13 can move vertically up and down.

[0039] In some examples, the left and right sides of the moving block 13 are hinged with diagonal rods 14, and the other end of the diagonal rods 14 is hinged with a clamping plate 15. The bottom of the clamping plate 15 is movably connected to the top of the base 1.

[0040] When the moving block 13 moves downward, it will cause the two inclined rods 14 to move and the two clamping plates 15 to move in opposite directions.

[0041] In some examples, the bottom of the clamping plate 15 is fixedly connected to the limiting block 17, the inner side of the clamping plate 15 is movably connected to the outer surface of the lower mold 9, and the outer surface of the limiting block 17 is movably connected to the inner surface of the top of the slide 16.

[0042] Due to the limiting effect of the slide groove 16, the clamping plate 15 will drive the limiting block 17 to move horizontally left and right.

[0043] In some examples, a fixing rod 18 is fixedly connected to each of the four corners of the top of the base 1. A top plate 19 is fixedly connected to the top of the fixing rod 18. A pneumatic cylinder 20 is fixedly connected to the left and right sides of the top of the top plate 19. The bottom of the pneumatic cylinder 20 passes through the top plate 19 and extends to the bottom of the top plate 19 and is fixedly connected to a movable plate 21. The interior of the movable plate 21 is movably sleeved with the outer surface of the fixing rod 18.

[0044] When the pneumatic cylinder 20 starts running, it will cause the movable plate 21 to move vertically downward.

[0045] In some examples, the top of the top plate 19 is fixedly connected to the core shooting machine body 22, and the left and right sides of the bottom of the core shooting machine body 22 are fixedly connected to the telescopic hoses 23. The bottom end of the telescopic hoses 23 penetrates the top plate 19 and extends to the bottom of the top plate 19 and is fixedly connected to the spray head 24.

[0046] Open the core shooter body 22 and let the raw material enter the spray head 24 through the telescopic hose 23, and then perform sandblasting operation through the two spray heads 24.

[0047] In some examples, the outer surface of the nozzle 24 is fixedly fitted with an upper mold 25, which is fixedly mounted on the bottom of the movable plate 21.

[0048] When the pneumatic cylinder 20 is activated, the movable plate 21 drives the upper mold 25 to move vertically downward, so that the upper mold 25 can compact the raw material inside the lower mold 9.

[0049] In some examples, there are four fixing rods 18, and the outer surfaces of the four fixing rods 18 are smooth.

[0050] This design makes the movement of the movable plate 21 on the outer surface of the fixed rod 18 smoother.

[0051] The working principle and usage process of this disclosure are as follows:

[0052] Start the core shooting machine body 22 and perform sand shooting operation through two telescopic hoses 23 and spray head 24. After the sand shooting operation is completed, start the pneumatic cylinder 20, so that the movable plate 21 drives the upper mold 25 to move vertically downward, compacting the raw material inside the lower mold 9. When it is difficult to remove the material after the metal casting is formed, start the first motor 3, which will cause the rotating shaft 4 to drive the rotating rod 5 to rotate, so that the rotating rod 5 squeezes and pushes the sleeve rod 6, causing the sleeve rod 6 to drive the rectangular plate 7 to move upward. At this time, under the limiting action of the base 1, the four ejector rods 8 will move vertically upward along the inside of the lower mold 9, and finally eject the metal casting located inside the lower mold 9, realizing the function of easy material discharge. In addition, the design of the four ejector rods 8 also avoids the bottom of the metal casting from being stressed and bent.

[0053] When it is necessary to disassemble the mold 9 for cleaning or replacement, the second motor 11 is started, which will cause the threaded rod 12 to rotate. This will cause the moving block 13 to move vertically downward under the limiting action of the vertical plate 10, thereby causing the two inclined rods 14 to move. At this time, under the limiting action of the slide groove 16, the two clamping plates 15 will drive the two limiting blocks 17 to move horizontally in opposite directions, ultimately releasing the fixing effect on the lower mold 9. This realizes the function of facilitating the disassembly and assembly of the lower mold 9, improving the efficiency of the operator in disassembling and assembling the lower mold 9, and reducing the labor intensity of the operator.

[0054] 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. An automatic core shooter for metal castings with double sand shooting, comprising a base (1), characterized in that: A support base (2) is fixedly connected to the bottom of the inner cavity of the base (1). A first motor (3) is fixedly connected to the top of the support base (2). A rotating shaft (4) is fixedly sleeved at the other end of the output shaft of the first motor (3). A rotating rod (5) is fixedly sleeved at the other end of the rotating shaft (4). A sleeve rod (6) is movably connected to the outer surface of the rotating rod (5). A rectangular plate (7) is fixedly connected to the top of the sleeve rod (6). A top material rod (8) is fixedly connected to the four corners of the top of the rectangular plate (7). A lower mold (9) is movably connected to the top of the base (1). The top of the top material rod (8) passes through the base (1) and the lower mold (9) in sequence and extends into the interior of the lower mold (9).

2. The automatic double-shot sand core shooter for metal castings according to claim 1, characterized in that: A vertical plate (10) is fixedly connected to the top of the base (1), and a second motor (11) is fixedly connected to the top of the vertical plate (10). A threaded rod (12) is fixedly sleeved on the other end of the output shaft of the second motor (11). Slide grooves (16) are provided on both the left and right sides of the top of the base (1).

3. The automatic core shooter for metal castings with double sand shooting according to claim 2, characterized in that: The other end of the threaded rod (12) passes through the vertical plate (10) and extends into the interior of the vertical plate (10) and is movably sleeved with the interior of the vertical plate (10). The outer surface of the threaded rod (12) is threaded with a moving block (13).

4. The automatic double-shot sand core shooter for metal castings according to claim 3, characterized in that: The front of the vertical plate (10) is provided with a rectangular groove (26), and the back of the moving block (13) is movably connected to the inside of the rectangular groove (26).

5. The automatic double-shot sand core shooter for metal castings according to claim 3, characterized in that: The moving block (13) has a diagonal rod (14) hinged on both the left and right sides, and a clamping plate (15) hinged to the other end of the diagonal rod (14). The bottom of the clamping plate (15) is movably connected to the top of the base (1).

6. The automatic double-shot sand core shooter for metal castings according to claim 5, characterized in that: The bottom of the clamping plate (15) is fixedly connected to a limiting block (17), the inner side of the clamping plate (15) is movably connected to the outer surface of the lower mold (9), and the outer surface of the limiting block (17) is movably connected to the inner surface of the top of the slide groove (16).

7. The automatic double-shot sand core shooter for metal castings according to claim 1, characterized in that: Fixed rods (18) are fixedly connected to the four corners of the top of the base (1). A top plate (19) is fixedly connected to the top of the fixed rods (18). Pneumatic cylinders (20) are fixedly connected to the left and right sides of the top of the top plate (19). The bottom of the pneumatic cylinder (20) passes through the top plate (19) and extends to the bottom of the top plate (19) and is fixedly connected to a movable plate (21). The interior of the movable plate (21) is movably sleeved with the outer surface of the fixed rods (18).

8. The automatic double-shot sand core shooter for metal castings according to claim 7, characterized in that: The top of the top plate (19) is fixedly connected to the core shooting machine body (22), and the bottom left and right sides of the core shooting machine body (22) are fixedly connected to the telescopic hose (23). The bottom end of the telescopic hose (23) passes through the top plate (19) and extends to the bottom of the top plate (19) and is fixedly connected to the spray head (24).

9. The automatic double-shot sand core shooter for metal castings according to claim 8, characterized in that: The outer surface of the spray head (24) is fixedly fitted with an upper mold (25), which is fixedly installed at the bottom of the movable plate (21).

10. The automatic double-shot sand core shooter for metal castings according to claim 7, characterized in that: The number of the fixing rods (18) is four, and the outer surface of the four fixing rods (18) is smooth.

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