A die for automatically pressing a zirconium core

Abstract

The utility model relates to a press mould technical field, concretely relates to a kind of mould of automatic pressing zirconium core, comprising: fixed mould, is equipped with the forming hole for storing powder, upper die, is set in the top of fixed mould, is driven by hydraulic push rod, lower die, it is set in the below of fixed mould, and is worn in the inside of forming hole, is driven by hydraulic push rod cooperation upper die to powder compaction forming, and core-pulling rod, wear in the inside of lower die and forming hole, for the middle hole forming of pressing time;Cleaning assembly for cleaning the top of core-pulling rod is provided on the upper die;The utility model has the beneficial effects that: the application is by setting cleaning assembly on the upper die, the automatic cleaning of the residual powder of the top of core-pulling rod is realized, not only effectively solve the problem of residual powder in the top of core-pulling rod in traditional mould, and cleaning efficiency is high, improves the compaction quality and production efficiency of zirconium core.

Description

Technical Field

[0001] This utility model relates to the field of pressing mold technology, specifically to a mold for automatically pressing zirconium cores. Background Technology

[0002] Zirconium cores typically refer to components made from zirconium powder or zirconium alloy powder through processes such as pressing and sintering, and they possess excellent fire resistance. Zirconium cores usually have a hollow structure (such as a tubular shape or a cylinder with a central hole) to meet specific functional requirements.

[0003] Currently, the pressing and molding of zirconium cores typically employs a mold combined with a core-pulling rod to create the desired internal hole structure. However, existing pressing and molding machines still present certain technical challenges in practical applications, particularly regarding powder residue.

[0004] In traditional pressing processes, the core-pulling rod needs to be removed from the zirconium core after pressing. However, because the powder at the top of the core-pulling rod cannot be pressed and used, a small amount of powder easily remains on the top of the rod. Although the amount of residual powder is small, it may fall off and adhere to the surface of the zirconium core during demolding, causing the following problems:

[0005] Affecting the surface quality of zirconium core: Residual powder may adhere to the inner hole or outer surface of the zirconium core during demolding, forming local unevenness, which in turn affects the dimensional accuracy and mechanical properties after sintering;

[0006] Increased difficulty in subsequent processing: If the powder is not effectively cleaned, local defects may occur during the sintering process, or even lead to product scrap.

[0007] Reduced production efficiency: Existing molds lack efficient residual powder cleaning mechanisms, often requiring manual intervention or additional cleaning steps, which increases production time and costs.

[0008] Therefore, an automated die for pressing zirconium cores is needed to overcome the aforementioned problems. Utility Model Content

[0009] To address the aforementioned problems, this utility model provides an automatic die for pressing zirconium cores, thus achieving the goal of resolving the issues raised in the background art.

[0010] To achieve the above objectives, this utility model embodiment adopts the following technical solution: an automatic zirconium core pressing mold, comprising: a fixed mold with a forming hole for storing powder; an upper pressing mold disposed above the fixed mold and driven by a hydraulic push rod; a lower pressing mold disposed below the fixed mold and inserted inside the forming hole, driven by a hydraulic push rod in conjunction with the upper pressing mold to press the powder into shape; and a core-pulling rod inserted inside the lower pressing mold and the forming hole for forming an intermediate hole during pressing; the upper pressing mold is provided with a cleaning component for cleaning the top of the core-pulling rod.

[0011] As a further improvement to the above technical solution:

[0012] The upper mold includes a substrate and a pressure head disposed on the substrate.

[0013] The cleaning assembly includes a suction port on the pressure head, a pipe connecting to the suction port, and a negative pressure mechanism on the pipe.

[0014] A card block is fixedly connected to the pressure head, and the base plate has a card slot for use with the card block.

[0015] The suction port and the pipe are fixedly connected and interconnected by a quick-release structure.

[0016] The quick-assembly structure includes a magnet one fixedly connected to the end of the suction hole and a magnet two fixedly connected to the pipe.

[0017] The beneficial effects of this utility model embodiment are as follows:

[0018] This application achieves automatic cleaning of residual powder on the top of the core-pulling rod by setting a cleaning component in the upper mold. This not only effectively solves the problem of residual powder on the top of the core-pulling rod in traditional molds, but also has high cleaning efficiency, improving the pressing quality and production efficiency of zirconium cores. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model;

[0021] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0022] Figure 4 This is a schematic diagram of the structure of the pressure head of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the substrate of this utility model.

[0024] In the diagram: 1. Fixed mold; 2. Upper mold; 3. Lower mold; 4. Core-pulling rod; 5. Forming hole; 6. Cleaning assembly; 7. Locking block; 8. Locking slot; 9. Quick-release structure;

[0025] 21. Substrate; 22. Press head;

[0026] 61. Suction port; 62. Pipeline; 63. Negative pressure mechanism;

[0027] 91. Magnet One; 92. Magnet Two. Detailed Implementation

[0028] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0029] See Figures 1 to 5 This utility model discloses an automatic zirconium core pressing mold, including a fixed mold 1, an upper pressing mold 2, a lower pressing mold 3, and a core-pulling rod 4. The fixed mold 1 has a forming hole 5 for storing powder. The upper pressing mold 2 is positioned above the fixed mold 1 and driven by a hydraulic push rod (not shown). The lower pressing mold 3 is positioned below the fixed mold 1 and passes through the forming hole 5, and is driven by a hydraulic push rod (not shown) to cooperate with the upper pressing mold 2 to press and shape the powder. The core-pulling rod 4 passes through the lower pressing mold 3 and the forming hole 5, and is used to form the central hole of the zirconium core during pressing. The upper pressing mold 2 is provided with a cleaning component 6 for cleaning the top of the core-pulling rod 4. The cleaning component 6 cleans the powder on the top of the core-pulling rod 4 using negative pressure.

[0030] During operation, powder is added into the forming hole 5 inside the fixed mold 1, and the hydraulic push rod is activated to extrude and form the powder through the upper mold 2 and the lower mold 3. After pressing is completed, the upper mold 2 and the lower mold 3 move upward, and the lower mold 3 pushes the formed zirconium core out of the forming hole 5.

[0031] The upper die 2 includes a base plate 21 and a pressing head 22 disposed on the base plate 21. The pressing head 22 enters the forming hole 5 for pressing. The cleaning assembly 6 includes a suction hole 61 formed on the pressing head 22, a pipe 62 connected to the suction hole 61, and a negative pressure mechanism 63 disposed on the pipe 62. After pressing, the suction hole 61 is aligned with the top of the core-pulling rod 4, and the negative pressure mechanism 63 is activated to suck away the powder on the top of the core-pulling rod 4 through the pipe 62 and the suction hole 61, thus completing the cleaning.

[0032] The cleaning component 6 includes: a suction port 61 on the side of the pressure head 22, a pipe 62 sealed and connected to the suction port 61, and a negative pressure mechanism 63 located at the end of the pipe 62. The suction port 61 has a diameter of 3-5mm to ensure precise coverage of the top area of ​​the core-pulling rod 4. The pipe 62 is made of wear-resistant metal flexible tubing with a polished inner wall to reduce powder adhesion. It is connected to the suction port 61 via a quick-release structure 9 for airtight connection. The negative pressure mechanism 63 is preferably a pulsed vacuum generator, capable of generating an instantaneous negative pressure of 0.05-0.1MPa, completing the adsorption operation within 0.5-1 seconds.

[0033] During operation, once the pressing process is completed, the negative pressure mechanism 63 automatically activates, creating a high-speed airflow through the pipe 62 at the suction hole 61 to completely remove residual powder from the top area of ​​the core-pulling rod 4. The adsorbed powder is then transported via the pipe 62 to a recycling device for centralized processing, preventing secondary pollution.

[0034] This application achieves automatic cleaning of residual powder on the top of the core-pulling rod 4 by setting a cleaning component 6 in the upper mold 2. This not only effectively solves the problem of residual powder on the top of the core-pulling rod 4 in traditional molds, but also has high cleaning efficiency, improving the pressing quality and production efficiency of zirconium cores.

[0035] A locking block 7 is fixedly connected to the pressure head 22, and a slot 8 for cooperating with the locking block 7 is provided on the base plate 21. When installing the pressure head 22, the locking block 7 is aligned with the slot 8, and then the pressure head 22 is rotated to screw the locking block 7 into the slot 8 for fixation. This structure facilitates quick installation and removal of the pressure head 22 on the base plate 21. The suction hole 61 and the pipe 62 are fixedly connected and communicate with each other through a quick-release structure 9. The quick-release structure 9 includes a magnet 91 fixedly connected to the end of the suction hole 61 and a magnet 92 fixedly connected to the pipe 62, achieving quick connection through magnetic attraction.

[0036] The negative pressure mechanism 63 can be a vacuum pump or a compressed air ejector. After pressing is completed, the negative pressure mechanism 63 will start automatically, and the residual powder at the top of the core-pulling rod 4 will be sucked out through the suction hole 61 and the pipe 62 and transported to the recycling device.

[0037] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0040] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A mold for automatically pressing zirconium cores, comprising: The fixed mold (1) has a forming hole (5) for storing powder. The upper die (2) is positioned above the fixed die (1) and is driven by a hydraulic push rod. The lower die (3) is located below the fixed die (1) and passes through the inside of the forming hole (5). It is driven by a hydraulic push rod to cooperate with the upper die (2) to press and form the powder. The core-pulling rod (4) is inserted into the lower die (3) and the forming hole (5) for forming the middle hole during pressing; The feature is that the upper mold (2) is provided with a cleaning component (6) for cleaning the top of the core-pulling rod (4).

2. The mold for automatically pressing zirconium cores according to claim 1, characterized in that, The upper mold (2) includes a base plate (21) and a pressure head (22) disposed on the base plate (21).

3. The mold for automatically pressing zirconium cores according to claim 2, characterized in that, The cleaning component (6) includes a suction hole (61) opened on the pressure head (22), a pipe (62) connected to the suction hole (61), and a negative pressure mechanism (63) provided on the pipe (62).

4. The mold for automatically pressing zirconium cores according to claim 3, characterized in that, A locking block (7) is fixedly connected to the pressure head (22), and the base plate (21) has a locking slot (8) that cooperates with the locking block (7).

5. The mold for automatically pressing zirconium cores according to claim 4, characterized in that, The suction hole (61) and the pipe (62) are fixedly connected and communicate with each other through the quick-release structure (9).

6. The mold for automatically pressing zirconium cores according to claim 5, characterized in that, The quick-release structure (9) includes a magnet one (91) fixedly connected to the end of the suction hole (61) and a magnet two (92) fixedly connected to the pipe (62).

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