An automatic unloading mechanism for a core shooting machine

Abstract

This utility model relates to the field of stripping mechanisms and discloses an automatic stripping mechanism for a core shooter. It includes an upper mold and a lower mold, both equipped with stripping components. When the upper and lower molds open, the stripping components separate the sand core, which is then transferred by a core-receiving component. The lower mold is connected to a horizontal adjustment mechanism, which guides the core-receiving component, ensuring synchronous movement between the mechanism and the component. This utility model proposes an automatic stripping mechanism for a core shooter. By synchronizing the core-receiving component with the horizontal adjustment mechanism, it eliminates the need for the telescopic lifting structure of traditional core-receiving devices, reducing failure rates, operational steps, and errors, and improving reliability. Horizontal movement for receiving the sand core avoids height limitations, eliminates the need to increase the mold opening distance, and improves efficiency. The extended guide rail design provides ample space for mold hoisting and replacement, shortening downtime and improving production continuity.

Description

Technical Field

[0001] This utility model relates to the field of unloading mechanism technology, and more specifically, it relates to an automatic unloading mechanism for a core shooting machine. Background Technology

[0002] Core shooters are specialized equipment used in the foundry industry for manufacturing sand cores, particularly suitable for producing sand cores for complex molds. They mainly come in two types: hot core boxes and cold core boxes. During the core-making process, the core shooter simultaneously performs sand shooting, compaction, and heat curing, using high-temperature compressed air to quickly and efficiently produce high-precision sand cores. Widely used in the production of complex molds, once the sand core has formed in the mold, it needs to be demolded and removed. The core receiving device moves it out of the mold area and to a designated placement area so that the mold can continue with the next production cycle.

[0003] Existing core-receiving devices have several technical limitations. These devices are typically independent mechanisms with telescopic and lifting functions, primarily used to reach between the upper and lower molds after mold opening to receive the formed sand core. However, the inherent height of the device and the need for lifting to avoid collisions with the molds limit the maximum height of the sand core. If the mold opening distance is designed too large to accommodate taller sand cores, it significantly increases mold opening and closing time, reducing production efficiency. Furthermore, existing core-receiving devices are relatively complex. When dealing with molds of varying heights, operators need to adjust multiple positional parameters, increasing operational complexity and increasing the risk of errors, further impacting production efficiency and equipment reliability. Additionally, in existing core-shooting machines, the upper and lower molds are typically placed in the middle, making mold changes impossible via hoisting. This makes mold-changing extremely difficult, further extending downtime and preparation time, negatively impacting production efficiency. Utility Model Content

[0004] This utility model provides an automatic unloading mechanism for a core shooting machine, which solves the technical problems in the existing core receiving device, which is a telescopic lifting mechanism, which limits the height of the sand core, has a large mold opening distance that affects efficiency, has a complex structure, is prone to errors in adjustment, and affects production efficiency.

[0005] This utility model provides an automatic stripping mechanism for a core shooting machine, including an upper mold and a lower mold, and stripping components are provided on both the upper mold and the lower mold. When the upper mold and the lower mold open, the stripping components separate the sand core, and the sand core is transferred by the receiving core component.

[0006] The lower mold is connected to a horizontal adjustment mechanism, which guides the connecting core component so that the horizontal adjustment mechanism and the connecting core component move synchronously.

[0007] As a further optimization of this utility model, the connecting core is a support plate, and the support plate is connected to the horizontal adjustment mechanism.

[0008] As a further optimization of this utility model, the connecting core is a conveyor belt, and the conveyor belt is connected to the horizontal adjustment mechanism.

[0009] As a further optimization of this utility model, an upper worktable is installed on the upper mold, and a column is slidably connected to the upper worktable in the vertical direction. A base is installed at one end of the column, and a top plate is installed at the other end. An opening and closing cylinder for driving the upper mold to open and close is installed on the top plate.

[0010] As a further optimization of this utility model, the horizontal adjustment mechanism includes a guide rail, a lower worktable, a slider, and a linear actuator. The guide rail is horizontally mounted on the base. The lower worktable is slidably engaged with the guide rail via the slider. The linear actuator is horizontally mounted on the base, and the driving end of the linear actuator is connected to the lower worktable. The connecting core is slidably engaged with the guide rail via the slider and moves synchronously with the lower worktable.

[0011] As a further optimization of this utility model, the connecting core is connected to the lower worktable via a bracket.

[0012] As a further optimization of this utility model, the linear actuator is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0013] As a further optimization of this utility model, one end of the guide rail extends to the outside of the base and is connected to a support.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The automatic unloading mechanism of the core shooting machine described in this utility model eliminates the complex telescopic and lifting structure of the traditional core receiving device by synchronously moving the core receiving component and the horizontal adjustment mechanism, thereby reducing the equipment failure rate. When changing molds of different heights, there is no need to adjust the height parameters of the core receiving component; it can be adapted simply by horizontal adjustment, reducing operation steps and adjustment errors, and significantly improving the reliability of equipment operation.

[0016] 2. The automatic unloading mechanism of the core shooting machine described in this utility model uses a horizontal adjustment mechanism to drive the core receiving component to move horizontally to receive the sand core. There is no need for the core receiving component to lift or lower, which avoids the limitation of the maximum height of the sand core by the height of the traditional core receiving device. At the same time, there is no need to increase the mold opening distance to accommodate tall sand cores, which reduces the mold opening and closing time and effectively improves production efficiency. It can flexibly adapt to the production needs of sand cores of different heights.

[0017] 3. The automatic unloading mechanism for a core shooting machine described in this utility model, through the design of the guide rail extending to the outside of the base, combined with the connection method of the lower mold and the horizontal adjustment mechanism, provides sufficient space for mold replacement, so that the mold can be quickly replaced by hoisting. This solves the problem that the mold is difficult to replace in traditional equipment because it is located in the middle position, greatly shortens the equipment downtime and production preparation time, and improves production continuity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an automatic unloading mechanism for a core shooting machine proposed in this utility model.

[0019] Figure 2 This is a side view of the automatic unloading mechanism for a core shooter proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the upper mold opening structure of an automatic ejection mechanism for a core shooting machine proposed in this utility model.

[0021] In the picture:

[0022] 1. Upper mold;

[0023] 2. Lower mold;

[0024] 3. Unloading assembly;

[0025] 4. Connector;

[0026] 5. Horizontal adjustment mechanism; 51. Guide rail; 52. Lower worktable; 53. Slider; 54. Linear actuator; 55. Support;

[0027] 6. Place on the workbench;

[0028] 7. Columns;

[0029] 8. Base;

[0030] 9. Top slab;

[0031] 10. Opening and closing cylinder;

[0032] 11. Support. Detailed Implementation

[0033] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0034] Example 1

[0035] like Figure 1 As shown, an automatic stripping mechanism for a core shooting machine according to an embodiment of the present utility model includes an upper mold 1 and a lower mold 2 respectively, and both the upper mold 1 and the lower mold 2 are provided with stripping components 3. When the upper mold 1 and the lower mold 2 open, the sand core is separated by the stripping components 3, and the sand core is transferred by the core receiving component 4.

[0036] The lower mold 2 is connected to a horizontal adjustment mechanism 5, which guides the connecting core 4 so that the horizontal adjustment mechanism 5 and the connecting core 4 move synchronously.

[0037] When the upper mold 1 and lower mold 2 are closed, the sand core is formed. When the mold is opened, the upper mold 1 and lower mold 2 separate. The stripping component 3 acts on the sand core on the upper mold 1 and lower mold 2 respectively, separating the sand core from the mold. At the same time, the horizontal adjustment mechanism 5 drives the core receiving component 4 to move. Under the guidance of the horizontal adjustment mechanism 5, the core receiving component 4 moves precisely below the sand core to catch the sand core and transfer the sand core to the designated position. The horizontal adjustment mechanism 5 and the core receiving component 4 move synchronously, realizing that the sand core is automatically removed from the mold and transferred without manual intervention, improving the stripping efficiency. The synchronous movement of the horizontal adjustment mechanism 5 and the core receiving component 4 ensures the accurate position of the core receiving and avoids the sand core falling and being damaged.

[0038] When the mold detaches from the sand core, the mold opens and closes. At this time, the stripping component 3 at the lower mold 2 separates the lower part of the sand core from the lower mold 2. As the upper mold 1 rises, the core receiving component 4 moves between the upper mold 1 and the lower mold 2. At this time, the stripping component 3 at the upper mold 1 acts on the sand core, causing the sand core to detach from the upper mold 1 so that the sand core falls onto the core receiving component 4.

[0039] In an optional embodiment, the connector 4 is a support plate, and the support plate is connected to the horizontal adjustment mechanism 5.

[0040] After the sand core is separated by the unloading component 3, the horizontal adjustment mechanism 5 drives the connected support plate to move. The support plate moves to the bottom of the sand core to receive it. Then, the horizontal adjustment mechanism 5 continues to drive the support plate to transfer the sand core to the target position. The support plate has a simple structure, low cost, and can stably support the sand core. It is suitable for scenarios where the transfer speed requirement is not high, ensuring that the sand core is stable and does not shake during the transfer process.

[0041] like Figure 1 As shown, an upper worktable 6 is installed on the upper mold 1. A column 7 is slidably connected to the upper worktable 6 along the vertical direction. A base 8 is installed at one end of the column 7 and a top plate 9 is installed at the other end. An opening and closing cylinder 10 for driving the upper mold 1 to open and close is installed on the top plate 9.

[0042] When the opening and closing cylinder 10 is activated, its output end drives the upper worktable 6 to slide vertically along the column 7. The upper worktable 6 then drives the upper mold 1 to move, realizing the opening and closing action of the upper mold 1 and the lower mold 2. The column 7 guides the sliding of the upper worktable 6, ensuring that the opening and closing process of the upper mold 1 is smooth and accurate. The opening and closing of the upper mold 1 is driven by the opening and closing cylinder 10, which has a high degree of automation and stable and controllable opening and closing action. The guiding role of the column 7 ensures that the upper mold 1 and the lower mold 2 are accurately aligned when they are closed, improving the sand core forming accuracy and reducing mold wear.

[0043] like Figures 1 to 3 As shown, the horizontal adjustment mechanism 5 includes a guide rail 51, a lower worktable 52, a slider 53, and a linear actuator 54. The guide rail 51 is horizontally mounted on the base 8. The lower worktable 52 is slidably engaged with the guide rail 51 via the slider 53. The linear actuator 54 is horizontally mounted on the base 8, and the drive end of the linear actuator 54 is connected to the lower worktable 52. The connecting core 4 is slidably engaged with the guide rail 51 via the slider 53 and moves synchronously with the lower worktable 52.

[0044] Specifically, the linear actuator 54 is a hydraulic cylinder, pneumatic cylinder, or electric cylinder.

[0045] When the linear actuator 54 is activated, its drive end pushes the lower worktable 52. The lower worktable 52 slides horizontally along the guide rail 51 via the slider 53. Since the core connector 4 is slidably engaged with the guide rail 51 via the slider 53 and moves synchronously with the lower worktable 52, the movement of the lower worktable 52 drives the core connector 4 to slide along the guide rail 51 in the same direction and at the same speed, thereby achieving horizontal adjustment of the core connector 4. The guide rail 51 and the slider 53 cooperate to ensure that the horizontal movement of the lower worktable 52 and the core connector 4 is smooth and stable. The linear actuator 54 can control the position of the core connector 4. Due to the synchronous movement, the independent movement control of the mechanism is reduced, thereby improving the accuracy of the core connector.

[0046] Furthermore, the connector 4 is connected to the lower worktable 52 via the bracket 55.

[0047] When the lower worktable 52 moves, the power is transmitted to the core connector 4 through the bracket 55. The bracket 55 plays a role in fixing and connecting, so that the core connector 4 and the lower worktable 52 form a stable connection and ensure that the two move synchronously. The core connector 4 slides smoothly along the guide rail 51 with the lower worktable 52. The bracket 55 enhances the stability of the connection between the core connector 4 and the lower worktable 52, and prevents the core connector 4 from shaking or falling off when moving or receiving sand cores, thus ensuring the reliability of the core connection and transfer process.

[0048] Furthermore, one end of the guide rail 51 extends to the outside of the base 8 and is connected to the support 11.

[0049] The extended portion of the guide rail 51 is supported by the support 11. When the lower worktable 52 and the core connector 4 move outward along the guide rail 51 to the base 8, the extended guide rail 51 provides them with a longer movement path. The support 11 ensures the stability of the guide rail 51 in the extended portion, prevents the guide rail 51 from deforming due to suspension, increases the horizontal movement range of the core connector 4, and can transfer the sand core to a farther position, facilitating connection with subsequent processes at different distances. The support 11 enhances the load-bearing capacity and stability of the guide rail 51, and extends the service life of the equipment.

[0050] Example 2

[0051] The difference from Example 1 is as follows:

[0052] The connecting element 4 is a conveyor belt, and the conveyor belt is connected to the horizontal adjustment mechanism 5.

[0053] After the sand core is removed from the mold, the horizontal adjustment mechanism 5 drives the conveyor belt to move below the sand core. The sand core falls onto the conveyor belt, and the conveyor belt itself transports the sand core. At the same time, the horizontal adjustment mechanism 5 moves synchronously with the conveyor belt to ensure that the sand core is smoothly removed from below the mold and continuously transported to the subsequent process. The conveyor belt can realize the continuous transport of the sand core, improve the transfer efficiency, and is suitable for large-scale production scenarios. It reduces the dwell time of the sand core on the core receiving part 4 and improves the overall production rhythm.

[0054] The embodiments of the present utility model have been described above, but the present embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present embodiments, all of which are within the protection scope of the present embodiments.

Claims

1. An automatic stripping mechanism for a core shooting machine, comprising an upper mold (1) and a lower mold (2) respectively, wherein both the upper mold (1) and the lower mold (2) are provided with stripping components (3), characterized in that: The upper mold (1) and lower mold (2) open, and the sand core is separated by the stripping component (3), and the sand core is transferred by the core receiving component (4); The lower mold (2) is connected to a horizontal adjustment mechanism (5), and the horizontal adjustment mechanism (5) guides the connecting core (4) so ​​that the horizontal adjustment mechanism (5) and the connecting core (4) move synchronously.

2. A core shooting machine automatic stripping mechanism according to claim 1, characterized in that: The connecting core (4) is a support plate, and the support plate is connected to the horizontal adjustment mechanism (5).

3. A core shooting machine automatic stripping mechanism as claimed in claim 1, wherein: The connecting core (4) is a conveyor belt, and the conveyor belt is connected to the horizontal adjustment mechanism (5).

4. A core shooting machine automatic stripping mechanism according to claim 3, wherein: The upper mold (1) is equipped with an upper worktable (6), and a column (7) is slidably connected to the upper worktable (6) in the vertical direction. A base (8) is installed at one end of the column (7), and a top plate (9) is installed at the other end. An opening and closing cylinder (10) for driving the upper mold (1) to open and close is installed on the top plate (9).

5. A core shooting machine automatic stripping mechanism as claimed in claim 4, wherein: The horizontal adjustment mechanism (5) includes a guide rail (51), a lower worktable (52), a slider (53), and a linear actuator (54). The guide rail (51) is horizontally mounted on the base (8). The lower worktable (52) is slidably engaged with the guide rail (51) via the slider (53). The linear actuator (54) is horizontally mounted on the base (8), and the driving end of the linear actuator (54) is connected to the lower worktable (52). The connecting core (4) is slidably engaged with the guide rail (51) via the slider (53) and moves synchronously with the lower worktable (52).

6. The automatic unloading mechanism for a core shooter according to claim 5, characterized in that: The connector (4) is connected to the lower worktable (52) via a bracket (55).

7. A core shooting machine automatic stripping mechanism according to claim 5 or 6, wherein: The linear actuator (54) is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

8. A core shooting machine automatic stripping mechanism according to claim 7, wherein: One end of the guide rail (51) extends to the outside of the base (8) and is connected to a support (11).

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