Side core pushing device for taking metallographic test block sand core
By installing a core-pushing mechanism on one side of the mold and using a spring to control the movement of the push plate, the top sand core screw is driven into the sand core forming groove, which solves the problem of automatic and stable separation of the metallographic specimen sand core and the core box, improves the core-making efficiency and reduces the workload of the operator.
Patent Information
- Application Number
- CN202520323071.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-26
AI Technical Summary
In the existing technology, metallographic specimen sand cores are difficult to separate smoothly from the core box when they are removed, which affects the core making efficiency and increases the workload of the operator.
Design a side-push core device for core extraction of metallographic specimen sand cores. By installing a push core mechanism on one side of the mold, the push plate is moved by spring control, which drives the top sand core screw to squeeze into the sand core forming groove, thereby realizing the automatic and stable separation of the sand core and the core box.
It enables automatic and stable separation of metallographic specimen sand cores, improves core-making efficiency, and reduces the workload of operators.
Smart Images
Figure CN223581538U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of nodular cast iron metallographic test block core box mould design, especially relates to a horizontal side core pushing device for nodular cast iron pipe fitting sand core or long elbow pipe sand core. BACKGROUND
[0002] Nodular cast iron pipe fitting is an important component for connecting nodular cast iron pipes; the nodular cast iron pipe fitting has the nature of iron and the performance of steel, excellent corrosion resistance, good ductility, good sealing effect, easy installation, and is mainly used for municipal, industrial and mining enterprise water supply, gas transmission, oil transmission and the like, and has a very high performance-price ratio.
[0003] The metallographic test block is an important means for testing the quality of nodular cast iron molten iron, and the test block is formed by pouring nodular cast iron molten iron into the metallographic test block sand core and cooling; in actual production, one metallographic test block is needed for each package of molten iron, and the average daily consumption of the metallographic test block sand core is about 150 pieces; the metallographic test block sand core is formed by a cold core mould. Due to the structural characteristics of the metallographic test block sand core, the parting surface of the test block is located on the largest surface of the sand core, and after the core box is opened, the entire sand core except the parting surface is located in the left and right half moulds, and the sand core is not easy to take out; the operator needs to hammer the core box to force the sand core to displace a small amount in the core box, so that the test block sand core can be taken out; this affects the core making efficiency and increases the workload of the operator.
[0004] Therefore, it is necessary to design a new side core pushing device for taking out the metallographic test block sand core, which can solve the above problems. SUMMARY
[0005] The utility model provides a kind of side core pushing device for taking out the metallographic test block sand core, which is installed with core pushing mechanism in one side of mould, moves using spring control push plate after mould opening, drives sand core screw rod to be extruded into sand core forming groove, realizes that metallographic test block sand core moves out, reaches the purpose that sand core and core box are automatically and stably separated.
[0006] In order to solve the above technical problems, the utility model provides a kind of side core pushing device for taking out the metallographic test block sand core, which includes mould, and the mould includes left core box and right core box, and the left core box is provided with sand core forming groove for preparing metallographic test block sand core after right core box moulding, and the other side of the left core box away from the right core box is provided with core pushing mechanism, and the core pushing mechanism includes push plate, not less than 2 pairs of push plate fixed screw rod fixed on the left core box and spring for driving push plate to move, and the push plate is provided with sand core screw rod extending to sand core forming groove through the left core box.
[0007] Further, 2 pairs of core box screw rods extending to parting surface through the left core box are arranged at the edge of the periphery of the push plate.
[0008] Further, the sand core forming grooves in the left core box are arranged to be no less than 4.
[0009] Further, the top sand core screws arranged in each sand core forming groove are arranged to be 3 and are uniformly distributed along the center line of the sand core forming groove.
[0010] Further, the diameter of the push plate fixing screw is arranged to be 16mm, the diameter of the top sand core screw is arranged to be 8mm, and the diameter of the top core box screw is arranged to be 12mm.
[0011] Further, the left core box side wall is provided with a containing groove for containing the core pushing mechanism.
[0012] The utility model has the advantages that:
[0013] 1. The side core pushing device for taking the metallographic test block sand core can realize the automatic and stable separation of the sand core and the core box.
[0014] 2. The side core pushing device for taking the metallographic test block sand core can be used for the strip-shaped sand core taking mechanism with long sand core length and easy core breaking, and realizes the automatic and stable separation of the strip-shaped sand core and the core box through the core pushing mechanism. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a plan view of the metallographic test block sand core in the utility model;
[0016] Figure 2 It is a sectional view of the metallographic test block sand core in the utility model;
[0017] Figure 3 It is a side view of the side core pushing device for taking the metallographic test block sand core in the utility model;
[0018] Figure 4 It is a sectional view of the side core pushing device for taking the metallographic test block sand core in the utility model;
[0019] Figure 5 It is a taking core state schematic view of the side core pushing device for taking the metallographic test block sand core in the utility model;
[0020] Figure 6 It is a side view of the push plate mechanism in the side core pushing device for taking the metallographic test block sand core in the utility model;
[0021] Figure 7The utility model relates to a sectional view of a side core pushing device for metallographic test block sand core taking.
[0022] The utility model discloses a sectional view of a side core pushing device for metallographic test block sand core taking. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0024] As Figures 1-7 The utility model discloses a structure schematic drawing of a side core pushing device for metallographic test block sand core taking, and the utility model relates to a side core pushing device for metallographic test block sand core taking, which comprises a mould 1, and the mould comprises a left core box 3 and a right core box 4. The left core box 3 is provided with sand core forming grooves 6 for preparing metallographic test block sand cores 11 after the right core box 4 is closed. The left core box 3 is provided with a core pushing mechanism 2 on the other side away from the right core box 4. The core pushing mechanism 2 comprises a push plate 5, not less than two pairs of push plate fixing screws 8 fixed on the left core box 3 and springs 9 sleeved on the push plate fixing screws 8 and used for driving the push plate 5 to move. The push plate 5 is provided with sand core pushing screws 10 extending through the left core box 3 to the sand core forming grooves 6.
[0025] When the mould is used for core preparation, the sand core pushing screws 10 and the push plate 5 move to the left, and the push plate 5 compresses the springs 9. After the mould is opened after core preparation, the springs 9 drive the push plate 5 to move to the right, and the sand core pushing screws 10 extrude the metallographic test block sand cores 11 from the sand core forming grooves 6, so that the metallographic test block sand cores 11 are removed from the sand core forming grooves 6 and the purpose of taking cores is achieved.
[0026] In this embodiment, the core pushing mechanism is installed on one side of the mould. After the mould is opened, the push plate 5 is controlled to move by the springs 9, the sand core pushing screws are extruded into the sand core forming grooves 6, the metallographic test block sand cores are removed, and the purpose of automatically and stably separating the sand cores from the core boxes is achieved.
[0027] In the preferred embodiment, two pairs of core box screws 7 are arranged around the push plate 5 and extend to the parting surface through the left core box. After the right core box and the push plate assembly are assembled, the left and right core boxes are in the core preparation state, the springs are in the pre-compressed state, one end of the spring presses the push plate fixing bolt, and the other end of the spring presses the push plate. Because the core box screws top the parting surface 12 of the left core box, the push plate moves to the left. The sand core pushing screws also move with the push plate, and the sand core pushing screws are flush with the root of the cavity in the right core box.
[0028] When the core making is completed, the left core box 3 and the right core box 4 are pulled apart, the push plate 5 moves to the right during the spring 9 compression and release process, and is in close contact with the root of the core box inner cavity; the top core box screw 7 and the top sand core screw 10 also move to the right with the push plate; the top sand core screw 10 pushes the sand core out of the core box, thereby realizing the automatic removal of the metallographic core box after each core making is completed.
[0029] In a preferred embodiment, the sand core forming grooves 6 in the left core box are arranged to be not less than 4, and the present embodiment can realize the simultaneous core taking of 4, 6, 8, 10 sand cores and more than 10 sand cores.
[0030] In a preferred embodiment, the top sand core screws 10 arranged in each sand core forming groove 6 are arranged to be 3 and are uniformly distributed along the center line of the sand core forming groove.
[0031] In a preferred embodiment, the diameter of the push plate fixing screw 8 is arranged to be 16 mm, the diameter of the top sand core screw 10 is arranged to be 8 mm, and the diameter of the top core box screw 7 is arranged to be 12 mm.
[0032] In a preferred embodiment, a containing groove for accommodating the core pushing mechanism is arranged in the side wall of the left core box.
[0033] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the application concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.
Claims
1. A side core-pulling device for preparing a sand core of a metallographic test block, comprising a mold, the mold comprising a left core box and a right core box, a sand core forming groove for preparing a sand core of a metallographic test block being arranged on the left core box after the right core box is closed, characterized in that: The left core box is provided with a core pushing mechanism on the other side away from the right core box, the core pushing mechanism comprises a pushing plate, not less than two pairs of pushing plate fixing screws fixed on the left core box and springs sleeved on the pushing plate fixing screws and used for driving the pushing plate to move, and the pushing plate is provided with sand core pushing screws extending through the left core box to the sand core forming groove.
2. A side core-pushing device for metallographic test block sand core according to claim 1, characterized in that: Two pairs of core box pushing screws extending through the left core box to the parting surface are arranged on the periphery of the pushing plate close to the edge.
3. A side core-pushing device for metallographic test block core sampling according to claim 2, characterized in that: The sand core forming grooves in the left core box are arranged to be not less than four.
4. A side core-pulling apparatus for metallographic test block sand core according to claim 3, characterized in that: The sand core pushing screws arranged in each sand core forming groove are arranged to be three and uniformly distributed along the center line of the sand core forming groove.
5. A side core-pushing device for metallographic test block core sampling according to claim 4, characterized in that: The diameter of the pushing plate fixing screw is arranged to be 16 mm, the diameter of the sand core pushing screw is arranged to be 8 mm, and the diameter of the core box pushing screw is arranged to be 12 mm.
6. A side core-pushing device for metallographic test block core sampling according to claim 5, characterized in that: The left core box side wall is provided with a containing groove containing the core pushing mechanism.