A core press for ceramic core preparation

Abstract

The utility model relates to a ceramic core production equipment field especially relates to a kind of for the core press of ceramic core preparation, including core press, the inside sliding of positioning block is provided with limiting post, the outside of limiting post is provided with several groups of ball, the one end of limiting post is rotatably connected with bolt, the outer end of bolt is equipped with handle;The inner wall of positioning connecting groove is provided with several groups of arc clamping groove;The outer end of positioning block is provided with fixed hole;The utility model passes through forward and reverse rotation bolt, controls the extrusion and the state of not extrusion of limiting post to card pearl, makes card pearl and arc clamping groove carry out the connection of clamping and not clamping, can quickly complete the disassembly installation of pressing head fixed column and pressing head connecting column, need not to rotate respectively to multiple positioning bolt, it is simple and convenient to operate, further reduce the disassembly replacement time of pressing head, improve the installation and disassembly efficiency of pressing head, further improve the pressing efficiency of core press.

Description

Technical Field

[0001] This utility model relates to the field of ceramic core production equipment, and in particular to a core pressing machine for ceramic core preparation. Background Technology

[0002] A ceramic core is a precision component made of ceramic material with a specific shape, mainly used for casting metal parts with complex internal cavities or fine structures.

[0003] In the process of preparing ceramic cores, ceramic powder raw materials need to be pressed into blanks of a specific shape using a core press. During the use of the core press, the press head, as an important component in the pressing process, needs to continuously and repeatedly press the ceramic raw materials. After working for a long time, the press head may suffer from surface damage and bending. To ensure the quality of the ceramic core, the press head needs to be replaced. However, existing press heads are often fastened with multiple bolts. When disassembling and replacing the press head, multiple bolts need to be loosened individually to complete the disassembly. The disassembly process wastes a lot of time, resulting in low pressing efficiency of the core press.

[0004] Therefore, we provide a core pressing machine for the preparation of ceramic cores. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a pressing machine for ceramic core preparation, which facilitates the disassembly and replacement of the pressing head and improves pressing efficiency.

[0006] In view of this, the present invention provides a core pressing machine for ceramic core preparation, comprising a core pressing machine, wherein the upper module of the core pressing machine is composed of a hydraulic cylinder, a pressing head fixing column, a pressing head connecting column, and a pressing head. Two positioning connecting grooves are symmetrically opened on the outer surface of the pressing head connecting column, a positioning block is inserted into the positioning connecting groove, a limit post is slidably arranged inside the positioning block, a number of sets of retaining beads are arranged on the outside of the limit post, a bolt is rotatably connected to one end of the limit post, and a handle is installed on the outer end of the bolt; The inner wall of the positioning connection groove is provided with several sets of arc-shaped snap-fit ​​grooves; The outer end of the positioning block is provided with a fixing hole.

[0007] Preferably, the pressure head fixing column is fixedly connected to the output end of the hydraulic cylinder, the pressure head is installed at the lower end of the pressure head connecting column, the two positioning blocks are simultaneously fixedly connected to the upper end of the pressure head connecting column, and the upper surface of the pressure head connecting column is in close contact with the lower surface of the pressure head fixing column.

[0008] Preferably, the positioning block is trapezoidal in shape, with the long end of the positioning block being the upper end, and the outer surface of the positioning block being in close contact with the inner wall of the positioning connection groove.

[0009] Preferably, a set of three locking beads is provided. The inner wall of the fixing hole is provided with several sets of circular movable grooves. The locking beads move inside the circular movable grooves. The inner diameter of the circular movable groove is larger than the outer diameter of the locking beads. The inner diameter of the openings on both sides of the circular movable groove is smaller than the outer diameter of the locking beads. During the fixing process of the pressure head fixing post and the pressure head connecting post, the locking beads are engaged inside the arc-shaped locking groove. The outer surface of the locking beads is in close contact with the inner wall of the arc-shaped locking groove.

[0010] Preferably, the limiting post slides inside the fixing hole, and the outer surface of the limiting post is provided with several sets of arc-shaped misalignment grooves. During the disassembly of the pressure head, the retaining bead is located inside the arc-shaped misalignment groove.

[0011] Preferably, the bolt and the fixing hole are threadedly connected, and the handle is located outside the pressure head connecting column.

[0012] Preferably, two limiting blocks are symmetrically installed on the outer surface of the limiting post, and a limiting groove is formed on the inner wall of the fixing hole, and the limiting block slides inside the limiting groove.

[0013] Compared with the prior art, this utility model provides a core pressing machine for ceramic core preparation, which has the following beneficial effects: 1. This utility model controls the state of the limiting post pressing and not pressing the retaining ball by rotating the bolt in both directions, so that the retaining ball can be connected to the arc-shaped locking groove in either a locked or unlocked state. This allows for quick disassembly and installation of the pressure head fixing post and the pressure head connecting post without having to rotate multiple positioning bolts separately. The operation is simple and convenient, further reducing the disassembly and replacement time of the pressure head, improving the installation and disassembly efficiency of the pressure head, and further improving the pressing efficiency of the core pressing machine.

[0014] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a core pressing machine for ceramic core preparation proposed in this utility model; Figure 2 This is a schematic diagram of the initial connection and positioning structure of the pressing head of a pressing machine for ceramic core preparation proposed in this utility model; Figure 3This is a schematic diagram of the internal structure of the pressing head fixing column of a pressing machine for ceramic core preparation proposed in this utility model; Figure 4 This is a schematic diagram of the internal structure of the pressing head connecting column of a pressing machine for ceramic core preparation proposed in this utility model; Figure 5 This is a schematic diagram of the pressing head connecting column fixing and limiting structure of a pressing machine for ceramic core preparation proposed in this utility model.

[0016] In the diagram: 1. Core pressing machine; 2. Hydraulic cylinder; 3. Press head fixing post; 4. Press head connecting post; 5. Press head; 6. Positioning connecting groove; 601. Arc-shaped snap-fit ​​groove; 7. Positioning block; 701. Circular movable groove; 702. Fixing hole; 703. Limiting groove; 8. Clamping ball; 9. Limiting post; 901. Arc-shaped misalignment groove; 10. Bolt; 11. Handle; 12. Limiting block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0019] Example: A core pressing machine for ceramic core preparation, such as... Figures 1-5 As shown, the machine includes a core pressing machine 1. The upper module of the core pressing machine 1 consists of a hydraulic cylinder 2, a pressing head fixing column 3, a pressing head connecting column 4, and a pressing head 5. Two positioning connecting grooves 6 are symmetrically opened on the outer surface of the pressing head connecting column 4. A positioning block 7 is inserted into the positioning connecting groove 6. A limit post 9 is slidably set inside the positioning block 7. Several sets of locking beads 8 are set on the outside of the limit post 9. A bolt 10 is rotatably connected to one end of the limit post 9. A handle 11 is installed on the outer end of the bolt 10. The inner wall of the positioning connection groove 6 is provided with several sets of arc-shaped snap-fit ​​grooves 601; The outer end of the positioning block 7 has a fixing hole 702.

[0020] The pressure head fixing column 3 is fixedly connected to the output end of the hydraulic cylinder 2. The pressure head 5 is installed at the lower end of the pressure head connecting column 4. The two positioning blocks 7 are simultaneously fixedly connected to the upper end of the pressure head connecting column 4. The upper surface of the pressure head connecting column 4 is in close contact with the lower surface of the pressure head fixing column 3.

[0021] The positioning block 7 is generally trapezoidal in shape, with the long end of the positioning block 7 being the upper end. The outer surface of the positioning block 7 is in close contact with the inner wall of the positioning connecting groove 6.

[0022] There are three locking beads 8 in a set. The inner wall of the fixing hole 702 is provided with several sets of circular movable grooves 701. The locking beads 8 move inside the circular movable grooves 701. The inner diameter of the circular movable groove 701 is larger than the outer diameter of the locking beads 8. The inner diameter of the holes on both sides of the circular movable groove 701 is smaller than the outer diameter of the locking beads 8. During the fixing process of the pressure head fixing column 3 and the pressure head connecting column 4, the locking beads 8 are engaged inside the arc-shaped locking groove 601. The outer surface of the locking beads 8 is tightly fitted with the inner wall of the arc-shaped locking groove 601.

[0023] The limiting post 9 slides inside the fixing hole 702. Several sets of arc-shaped misalignment grooves 901 are opened on the outer surface of the limiting post 9. During the disassembly of the pressure head 5, the retaining bead 8 is located inside the arc-shaped misalignment groove 901.

[0024] Bolt 10 is threaded into fixing hole 702, and handle 11 is located outside pressure head connecting column 4.

[0025] When the pressure head 5 is installed, to ensure the accuracy of its relative position, a positioning block 7 and a positioning connecting groove 6 are provided. Inserting the positioning block 7 into the positioning connecting groove 6 completes the initial positioning and connection of the pressure head 5. Because both the positioning block 7 and the positioning connecting groove 6 are inverted trapezoidal, the pressure head connecting post 4 and the pressure head fixing post 3 will not detach. Furthermore, the trapezoidal engagement prevents the pressure head connecting post 4 from shaking, ensuring the stability of the pressure head 5 during operation and the accuracy of the pressure head 5 during pressing. During the insertion of the positioning block 7, due to limitations... The outer surface of the positioning post 9 is tightly fitted to the inner wall of the fixing hole 702. To prevent the retaining bead 8 from being squeezed by the limiting post 9, which would prevent the positioning block 7 from being inserted into the positioning connecting groove 6, the limiting post 9 is moved by the bolt 10, so that the retaining bead 8 and the arc-shaped misalignment groove 901 are on the same horizontal plane. Under the pressure of the opening of the positioning connecting groove 6, the retaining bead 8 will enter the arc-shaped misalignment groove 901, ensuring the smoothness of the docking process between the positioning connecting groove 6 and the positioning block 7. When the positioning block 7 is fully inserted into the positioning connecting groove 6, the arc-shaped retaining groove 601, the retaining bead 8, and the arc-shaped misalignment groove 901 are all in place. All are located on the same horizontal plane. To ensure a tight connection between the retaining bead 8 and the arc-shaped retaining groove 601, the handle 11 is rotated to move the bolt 10 fixing hole 702 inside. Since the bolt 10 and the fixing hole 702 are threaded, the bolt 10 gradually tightens into the fixing hole 702 during the movement of the bolt 10. When the bolt 10 can no longer be turned, the retaining bead 8 is squeezed by the outer surface of the limiting post 9, keeping the retaining bead 8 always inside the arc-shaped retaining groove 601, thus completing the connection between the pressure head connecting post 4 and the pressure head fixing post 3. When the pressure head 5 is disassembled and replaced, it is only necessary to rotate it in the opposite direction. By using handle 11 to free the locking bead 8 from the pressure of the limiting post 9, and pulling out the positioning block 7, the pressure head 5 can be disassembled. By rotating the bolt 10 in both the forward and reverse directions, the limiting post 9 can be controlled to press or not press the locking bead 8, allowing the locking bead 8 to engage or disengage with the arc-shaped locking groove 601. This allows for quick disassembly and installation of the pressure head fixing post 3 and the pressure head connecting post 4 without the need to rotate multiple positioning bolts separately. The operation is simple and convenient, further reducing the disassembly and replacement time of the pressure head 5, improving the installation and disassembly efficiency of the pressure head 5, and further improving the pressing efficiency of the core pressing machine 1.

[0026] like Figures 1-5 As shown, two limiting blocks 12 are symmetrically installed on the outer surface of the limiting post 9, and a limiting groove 703 is opened on the inner wall of the fixing hole 702, and the limiting block 12 slides inside the limiting groove 703.

[0027] When the limiting post 9 moves horizontally inside the fixing hole 702 along with the bolt 10, in order to prevent the limiting post 9 from rotating simultaneously with the bolt 10 and to ensure the stability of the relative position of the limiting post 9, a limiting block 12 and a limiting groove 703 are set to limit it. Under the limitation of the limiting groove 703 and the limiting block 12, the limiting post 9 cannot rotate at an angle and can only move horizontally under the guidance of the limiting groove 703, ensuring the stability of the operation of the limiting post 9. At the same time, under the limitation of the limiting groove 703 and the limiting block 12, the movement distance of the limiting post 9 can be limited to prevent the limiting post 9 from moving excessively. Furthermore, when the outer end of the limiting block 12 moves to the outer end of the limiting groove 703, the arc-shaped misalignment groove 901 and the retaining bead 8 are on the same horizontal plane, ensuring the accuracy of the retaining bead 8 being inserted into the arc-shaped misalignment groove 901.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A core pressing machine for preparing ceramic cores, characterized in that, The machine includes a core pressing machine (1). The upper module of the core pressing machine (1) consists of a hydraulic cylinder (2), a head fixing column (3), a head connecting column (4), and a head (5). The outer surface of the head connecting column (4) has two symmetrical positioning connecting grooves (6). A positioning block (7) is inserted into the positioning connecting groove (6). A limit post (9) is slidably arranged inside the positioning block (7). Several sets of locking beads (8) are arranged on the outside of the limit post (9). A bolt (10) is rotatably connected to one end of the limit post (9). A handle (11) is installed on the outer end of the bolt (10). The inner wall of the positioning connection groove (6) is provided with several sets of arc-shaped snap-fit ​​grooves (601). The outer end of the positioning block (7) is provided with a fixing hole (702).

2. A core pressing machine for ceramic core preparation according to claim 1, characterized in that, The pressure head fixing column (3) is fixedly connected to the output end of the hydraulic cylinder (2), the pressure head (5) is installed at the lower end of the pressure head connecting column (4), the two positioning blocks (7) are fixedly connected to the upper end of the pressure head connecting column (4) at the same time, and the upper surface of the pressure head connecting column (4) is closely fitted with the lower surface of the pressure head fixing column (3).

3. A core pressing machine for ceramic core preparation according to claim 1, characterized in that, The positioning block (7) is generally trapezoidal in shape, with the long end of the positioning block (7) being the upper end, and the outer surface of the positioning block (7) being tightly fitted to the inner wall of the positioning connection groove (6).

4. A core pressing machine for ceramic core preparation according to claim 1, characterized in that, There are three of the set of the locking beads (8). The inner wall of the fixing hole (702) is provided with several sets of circular movable grooves (701). The locking beads (8) move inside the circular movable grooves (701). The inner diameter of the circular movable grooves (701) is larger than the outer diameter of the locking beads (8). The inner diameter of the holes on both sides of the circular movable grooves (701) is smaller than the outer diameter of the locking beads (8). During the fixing process of the pressure head fixing column (3) and the pressure head connecting column (4), the locking beads (8) are engaged inside the arc-shaped locking groove (601). The outer surface of the locking beads (8) is tightly fitted with the inner wall of the arc-shaped locking groove (601).

5. A core pressing machine for ceramic core preparation according to claim 1, characterized in that, The limiting post (9) slides inside the fixing hole (702). The outer surface of the limiting post (9) is provided with several sets of arc-shaped misalignment grooves (901). During the disassembly of the pressure head (5), the retaining bead (8) is located inside the arc-shaped misalignment groove (901).

6. A core pressing machine for ceramic core preparation according to claim 1, characterized in that, The bolt (10) is threadedly connected to the fixing hole (702), and the handle (11) is located outside the pressure head connecting column (4).

7. A core pressing machine for ceramic core preparation according to claim 1, characterized in that, Two limiting blocks (12) are symmetrically installed on the outer surface of the limiting post (9). A limiting groove (703) is opened on the inner wall of the fixing hole (702). The limiting block (12) slides inside the limiting groove (703).

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