Core ejecting device of casting machine

Abstract

The utility model discloses a casting machine top core device which comprises a machine frame, a hydraulic cylinder is installed at the bottom of the machine frame, a supporting frame is fixedly connected to the top of the machine frame, rotating handles are arranged on the two sides of the supporting frame, one end of each rotating handle is connected with a lead screw, the lead screw is arranged in the supporting frame, a movable block is connected to the lead screw, and the movable block is connected to the top of the machine frame. The top of the moving block penetrates through the supporting frame to be connected with a positioning mechanism, an ejector rod is arranged in the middle of the supporting frame and connected with the output end of a hydraulic cylinder, and an auxiliary ejection mechanism is connected to the ejector rod. And a hexagonal screw head is rotated through a tool, so that a threaded connecting part of the rotating rod is connected into the screw hole, connection between the device and the mold is achieved, and the device can adapt to molds of different sizes and is convenient and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of pouring machines, in particular to a core ejector device for a pouring machine. Background Art

[0002] The existing pouring machine top core device and the mold ejector plate are connected by bolts. The mold ejector plate is provided with screw holes, and the pouring machine top core device and the mold ejector plate are connected by bolts and nuts.

[0003] In the prior art, a mobile casting machine core jacking device with Chinese patent application number 201620379626.2 includes a frame, a suspension frame, a core jacking member, a first hydraulic cylinder, and a support plate; two guide columns and a core jacking cylinder are embedded in the core jacking member, a core jacking rod of the core jacking cylinder is rigidly connected to the support plate, the top of the guide column is rigidly connected to the support plate, and a top die head pressure plate screwed to two top die heads is provided on the top of the support plate; a rectangular through hole is opened on the top of the frame, and a guide sleeve is provided on the inner wall surface of the rectangular through hole, a guide rail accommodated by the guide sleeve is provided on the side of the core jacking member, and the hydraulic box moves horizontally in the rectangular through hole under the drive of the first hydraulic cylinder; the core jacking rod is extended or shortened under the drive of the core jacking cylinder, and drives the support plate to achieve vertical lifting under the guidance of the guide column. In the utility model, the horizontal movement of the top core member is achieved through the telescopic movement of the first hydraulic cylinder, thereby realizing the rapid clamping of the mold ejector plate and improving the tooling efficiency. However, it is not suitable for connection with molds of different sizes when in use and can only adapt to a single size.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a core-lifting device for a pouring machine to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A core ejecting device for a casting machine comprises a frame, a hydraulic cylinder is installed at the bottom of the frame, a support frame is fixedly connected to the top of the frame, rotating handles are arranged on both sides of the support frame, one end of the rotating handle is connected to a screw rod, the screw rod is arranged in the support frame, a moving block is connected to the screw rod, the top of the moving block passes through the support frame and is connected to a positioning mechanism, a push rod is arranged in the middle position of the support frame, the push rod is connected to the output end of the hydraulic cylinder, and the push rod is connected to an auxiliary ejection mechanism.

[0008] Preferably, mounting grooves matching the screw rod are provided on both sides of the support frame, and the screw rod is arranged in the mounting grooves.

[0009] Preferably, the positioning mechanism consists of a sliding plate and a rotating rod, and the rotating rod is rotatably connected to the sliding plate via a bearing.

[0010] Preferably, a threaded connection portion is provided at the top end of the rotating rod, and a hexagonal screw head is provided at the bottom end of the rotating rod.

[0011] Preferably, a slide groove matching the moving block is provided on the top of the support frame, and the moving block passes through the slide groove and is fixedly connected to the sliding plate.

[0012] Preferably, the auxiliary ejection mechanism includes a sliding rod, a lifting block, an ejection plate and a return spring, the sliding rod is arranged in the inner cavity of the ejector rod, the return spring and the lifting block are both connected to the sliding rod, the lifting block is arranged above the return spring, and the ejection plate is connected to both sides of the lifting block.

[0013] Preferably, grooves are provided on both sides of the ejector rod, and the ejection plate is fixedly connected to the lifting block through the connecting block passing through the grooves.

[0014] The beneficial effects of the utility model are:

[0015] 1. By providing a positioning mechanism, when the device is connected to the mold, the screw rod is rotated by turning the handle, so that the moving block drives the sliding plate to move, so that the rotating rod of the positioning mechanism corresponds to the screw hole position of the mold, which can adapt to molds of different sizes and is convenient and practical;

[0016] 2. By providing an auxiliary ejection mechanism, when used in a secondary ejection assembly, the ejector rod and the ejection plate can be connected separately, and the secondary ejection of the mold is performed through the ejection plate, which is suitable for various demoulding methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of a core top device of a pouring machine according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the support frame structure of a top core device of a pouring machine according to an embodiment of the utility model;

[0020] Figure 3 It is a structural diagram of a positioning mechanism of a top core device of a pouring machine according to an embodiment of the utility model;

[0021] Figure 4 The utility model is a structural diagram of an auxiliary ejection mechanism of a core ejection device of a casting machine according to an embodiment of the utility model.

[0022] In the figure:

[0023] 1. Frame; 2. Hydraulic cylinder; 3. Support frame; 4. Turning handle; 5. Screw; 6. Moving block; 7. Positioning mechanism; 8. Ejector rod; 9. Auxiliary ejection mechanism; 10. Mounting groove; 11. Sliding plate; 12. Turning rod; 13. Threaded connection part; 14. Hexagonal screw head; 15. Sliding rod; 16. Lifting block; 17. Ejector plate; 18. Reset spring. DETAILED DESCRIPTION

[0024] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0025] According to an embodiment of the utility model, a core ejector device for a casting machine is provided.

[0026] Embodiment 1

[0027] like Figure 1-4 As shown, a core ejection device for a casting machine according to an embodiment of the utility model comprises a frame 1, a hydraulic cylinder 2 is installed at the bottom of the frame 1, a support frame 3 is fixedly connected to the top of the frame 1, rotating handles 4 are arranged on both sides of the support frame 3, one end of the rotating handle 4 is connected to a screw rod 5, the screw rod 5 is arranged in the support frame 3, a moving block 6 is connected to the screw rod 5, the top of the moving block 6 passes through the support frame 3 and is connected to a positioning mechanism 7, a push rod 8 is arranged at the middle position of the support frame 3, the push rod 8 is connected to the output end of the hydraulic cylinder 2, an auxiliary ejection mechanism 9 is connected to the push rod 8, mounting grooves 10 matching with the screw rod 5 are arranged on both sides of the support frame 3, the screw rod 5 is arranged in the mounting groove 10, a slide groove matching with the moving block 6 is arranged on the top of the support frame 3, the moving block 6 is fixedly connected to the sliding plate 11 through the slide groove, the screw rod 5 is driven to rotate by the rotating handle 4, so that the moving block 6 drives the sliding plate 11 to move, so that the rotating rod 12 of the positioning mechanism 7 corresponds to the screw hole position of the mold.

[0028] Embodiment 2

[0029] like Figure 1-4As shown, a core-lifting device for a pouring machine according to an embodiment of the utility model comprises a frame 1, a hydraulic cylinder 2 is installed at the bottom of the frame 1, a support frame 3 is fixedly connected to the top of the frame 1, a rotating handle 4 is arranged on both sides of the support frame 3, a screw rod 5 is connected to one end of the rotating handle 4, the screw rod 5 is arranged in the support frame 3, a moving block 6 is connected to the screw rod 5, the top of the moving block 6 passes through the support frame 3 and is connected to a positioning mechanism 7, a push rod 8 is arranged in the middle of the support frame 3, and the push rod 8 is connected to the support frame 3. The output end of the hydraulic cylinder 2 is connected, and the ejector rod 8 is connected to an auxiliary ejection mechanism 9. The positioning mechanism 7 is composed of a sliding plate 11 and a rotating rod 12. The rotating rod 12 is rotatably connected to the sliding plate 11 through a bearing. The top end of the rotating rod 12 is provided with a threaded connection portion 13, and the bottom end of the rotating rod 12 is provided with a hexagonal screw head 14. The hexagonal screw head 14 is rotated by a tool so that the threaded connection portion 13 of the rotating rod 12 is connected to the screw hole, thereby realizing the connection between the device and the mold, and can adapt to molds of different sizes.

[0030] Embodiment 3

[0031] like Figure 1-4 As shown, a core ejector device for a casting machine according to an embodiment of the utility model comprises a frame 1, a hydraulic cylinder 2 is installed at the bottom of the frame 1, a support frame 3 is fixedly connected to the top of the frame 1, a rotating handle 4 is arranged on both sides of the support frame 3, a screw rod 5 is connected to one end of the rotating handle 4, the screw rod 5 is arranged in the support frame 3, a moving block 6 is connected to the screw rod 5, the top of the moving block 6 passes through the support frame 3 and is connected to a positioning mechanism 7, a push rod 8 is arranged in the middle position of the support frame 3, the push rod 8 is connected to the output end of the hydraulic cylinder 2, an auxiliary ejection mechanism 9 is connected to the push rod 8, and the auxiliary ejection mechanism 9 comprises a sliding rod 15, a lifting block 16, an ejection plate 17 and The reset spring 18 and the sliding rod 15 are arranged in the inner cavity of the ejector rod 8, the reset spring 18 and the lifting block 16 are both connected to the sliding rod 15, the lifting block 16 is arranged above the reset spring 18, the ejection plate 17 is connected to both sides of the lifting block 16, grooves are arranged on both sides of the ejector rod 8, the ejection plate 17 is fixedly connected to the lifting block 16 through the connecting block passing through the groove, the ejector rod 8 and the ejection plate 17 can be connected respectively, the secondary ejection of the mold is performed through the ejection plate 17, and when the ejection plate 17 ejects the product in the mold, the lifting block 16 drives the reset spring to be compressed, which can play a buffering role, and can be reset after ejection, which is convenient for repeated use of the device.

[0032] In summary, with the aid of the above-mentioned technical scheme of the utility model, when the device is in use, the screw rod 5 is driven to rotate by rotating the handle 4, so that the moving block 6 drives the sliding plate 11 to move, so that the rotating rod 12 of the positioning mechanism 7 corresponds to the screw hole position of the mold, and the hexagonal screw head 14 is rotated by a tool so that the threaded connection part 13 of the rotating rod 12 is connected to the screw hole, so as to realize the connection between the device and the mold, and can adapt to molds of different sizes. When applied to the secondary ejection component, the ejector rod 8 and the ejection plate 17 can be connected respectively, and the secondary ejection of the mold is performed through the ejection plate 17. When the ejection plate 17 ejects the product in the mold, the lifting block 16 drives the reset spring to be compressed, which can play a buffering role, and can be reset after ejection, which is convenient for repeated use of the device, suitable for demolding in various ways, and convenient for use of the device.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pouring machine core device, comprising a frame (1), characterized in that: A hydraulic cylinder (2) is installed at the bottom of the frame (1); a support frame (3) is fixedly connected to the top of the frame (1); rotating handles (4) are arranged on both sides of the support frame (3); one end of the rotating handle (4) is connected to a screw rod (5); the screw rod (5) is arranged in the support frame (3); a moving block (6) is connected to the screw rod (5); the top of the moving block (6) passes through the support frame (3) and is connected to a positioning mechanism (7); a push rod (8) is arranged in the middle of the support frame (3); the push rod (8) is connected to the output end of the hydraulic cylinder (2); and the push rod (8) is connected to an auxiliary ejection mechanism (9).

2. A pouring machine core device according to claim 1, characterized in that: Mounting grooves (10) matching the screw rod (5) are arranged on both sides of the support frame (3), and the screw rod (5) is arranged in the mounting grooves (10).

3. A pouring machine top core device according to claim 2, characterized in that: The positioning mechanism (7) is composed of a sliding plate (11) and a rotating rod (12), and the rotating rod (12) is rotatably connected to the sliding plate (11) via a bearing.

4. A pouring machine core device according to claim 3, characterized in that: The top end of the rotating rod (12) is provided with a threaded connection portion (13), and the bottom end of the rotating rod (12) is provided with a hexagonal screw head portion (14).

5. A pouring machine core device according to claim 4, characterized in that: A sliding groove matching the moving block (6) is provided on the top of the support frame (3), and the moving block (6) passes through the sliding groove and is fixedly connected to the sliding plate (11).

6. A pouring machine core device according to claim 5, characterized in that: The auxiliary ejection mechanism (9) comprises a sliding rod (15), a lifting block (16), an ejection plate (17) and a return spring (18); the sliding rod (15) is arranged in the inner cavity of the ejection rod (8); the return spring (18) and the lifting block (16) are both connected to the sliding rod (15); the lifting block (16) is arranged above the return spring (18); and the ejection plate (17) is connected to both sides of the lifting block (16).

7. A pouring machine core device according to claim 6, characterized in that: Grooves are provided on both sides of the ejector rod (8), and the ejector plate (17) is fixedly connected to the lifting block (16) via a connecting block passing through the grooves.

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