Ceramic axial flow pump body casting equipment integrated with internal flaw detection function

Abstract

The invention discloses ceramic axial flow pump body casting equipment integrated with an internal flaw detection function, and relates to the technical field of casting equipment. Comprising a casting mold, the top of the casting mold is fixedly connected with an overflow port, the overflow port communicates with the interior of the casting mold, the bottom of the casting mold is fixedly connected with a material pipe connector, and the material pipe connector communicates with the interior of the casting mold and is used for being externally connected with a screw extruder; an extending block is fixedly connected to the bottom of the casting mold, a rectangular groove is formed in the bottom of the extending block, and a cooling mechanism is arranged under the rectangular groove. By means of the mode that internal quality nondestructive testing and the casting process are deeply fused, an operator can visually monitor the solidification state of a casting and find potential internal defects in time, the casting quality of the ceramic axial flow pump body is guaranteed from the source, then automation of the casting process and precision of quality control are achieved, and the production efficiency is improved. And the production efficiency and the product percent of pass are obviously improved.

Description

Technical Field

[0001] This invention relates to the field of casting equipment technology, specifically to a ceramic axial flow pump body casting equipment with integrated internal flaw detection function. Background Technology

[0002] Ceramic axial flow pumps are increasingly widely used in high-end industrial fields such as chemical, semiconductor, and pharmaceutical industries due to their excellent corrosion resistance, wear resistance, and high efficiency. The manufacturing quality of its core component—the ceramic pump body—directly determines the performance and lifespan of the entire machine. Ceramic pump bodies are usually produced using precision casting technology, which has extremely stringent requirements for temperature control, injection accuracy, and internal defect control. Its technology is similar to that in the precision casting fields such as high-quality copper casting, high-quality titanium casting, and high-quality magnesium material manufacturing, all of which are committed to obtaining a dense and defect-free final product through process optimization.

[0003] Referring to Chinese invention patent, publication number CN 112451211 B, entitled "A Pump Body Casting Equipment," the invention includes a main body structure, a dust removal mechanism at the bottom of the main body structure, a lifting mechanism on one side of the dust removal mechanism, and a monitoring system inside the main body structure. This monitoring system is used to monitor the main body structure, the dust removal mechanism, and the lifting mechanism. The dust removal mechanism and monitoring system facilitate the monitoring system to control the servo motor to input the corresponding current, thereby driving the gear to rotate, which in turn drives the conveyor belt, the clamping block, and the dust storage bin to move, so as to facilitate the cleaning of the surfaces of the lower and upper mold cavities. The invention, by providing a lifting mechanism, facilitates real-time monitoring of the connection status of the lower and upper mold cavities, avoiding the failure of the pump body shell after processing due to the connection between the lower and upper mold cavities being in a non-sealed state.

[0004] However, some problems still exist in actual use: In existing ceramic pump body casting production, the injection process largely relies on manual observation, which suffers from response lag, easily leading to insufficient injection or material waste, and making it difficult to ensure consistency in each injection. During the cooling stage, natural cooling or simple external air or water cooling are commonly used. This method cannot accurately control and monitor the internal temperature field of the casting in real time, easily causing internal defects such as internal stress, microcracks, and shrinkage cavities due to uneven cooling. More importantly, existing equipment generally lacks effective internal flaw detection capabilities, making it impossible to conduct online quality assessment of the casting during the casting process. These potential problems are often only discovered during subsequent processing or use, resulting in high scrap rates. This severely restricts the production efficiency and reliability of high-performance ceramic pump bodies, becoming a technical challenge for the industry's development. Summary of the Invention

[0005] The purpose of this invention is to provide a ceramic axial flow pump body casting equipment with integrated internal flaw detection function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a ceramic axial flow pump body casting equipment integrating internal flaw detection function, comprising a casting mold, an overflow port fixedly connected to the top of the casting mold and communicating with the interior of the casting mold, a material pipe interface fixedly connected to the bottom of the casting mold and communicating with the interior of the casting mold and used for external connection of a screw extruder, an extension block fixedly connected to the bottom of the casting mold, and a rectangular groove opened at the bottom of the extension block, a cooling mechanism arranged directly below the rectangular groove, and a flaw detection mechanism movably connected inside the cooling mechanism, and an adjustment mechanism arranged directly below the cooling mechanism.

[0007] Preferably, the cooling mechanism includes a base, which is trapezoidal and has an arc-shaped groove at the bottom. Several cooling tubes are fixedly connected to the surface of the base. A connecting hole is longitudinally opened inside the base, and both ends of the connecting hole penetrate the base. The connecting holes at the bottom of the cooling tubes are respectively located in the same longitudinal section and are interconnected. Several insertion holes are opened at the top of the rectangular groove. Each insertion hole corresponds to and is adapted to a cooling tube. The cooling tube extends into the interior of the insertion hole.

[0008] Preferably, the cooling mechanism further includes a diverter pipe, which is U-shaped. An external pipe is fixedly connected to the middle of the diverter pipe, and telescopic pipes are fixedly connected to both ends of the diverter pipe. A series pipe is fixedly connected to the end of the telescopic pipe away from the diverter pipe. The series pipe has several output ports, and the series pipe is fixedly connected to one end of the connection hole through several output ports. The cooling pipe, connection hole, series pipe, telescopic pipe, diverter pipe, and external pipe are internally interconnected.

[0009] Preferably, the cooling mechanism further includes a connecting rod, which is provided in two sets and symmetrically arranged. The two sets of connecting rods are respectively located on both sides of the base, and one end of the connecting rod is fixedly connected to the bottom of the extension block. A return spring is sleeved on the outer side of the connecting rod. A set of symmetrical limiting blocks is fixedly connected to both sides of the base. The end of the connecting rod away from the extension block passes through the limiting block and extends to its bottom. A stop block is fixedly connected to the bottom of the connecting rod, and the return spring is located directly above the limiting block.

[0010] Preferably, the flaw detection mechanism includes a display screen, with a wire fixedly connected to the rear side of the display screen. The other end of the wire passes through the base and is inserted into the interior of a row of connecting holes in the longitudinal middle. Several auxiliary wires are fixedly connected to the outside of the wire, and the other ends of the auxiliary wires extend to the top of the cooling pipe.

[0011] Preferably, each of the sub-lines is fixedly connected to a temperature sensing probe at its top end, and the temperature sensing probe is fixedly connected to the top end of the cooling tube.

[0012] Preferably, the adjustment mechanism includes a mounting base, the surface of which is movably connected to a drive rod via a rotating shaft, and the outer side of the drive rod is provided with a set of symmetrical positive and negative threads. The outer side of the drive rod is movably connected to a set of symmetrical drive blocks via the positive and negative threads, and the top of the drive blocks is arc-shaped and fits against the arc-shaped groove surface of the base.

[0013] Preferably, one end of the mounting base is fixedly connected to a drive motor, and the output end of the drive motor is fixedly connected to one end of the drive rod via a coupling.

[0014] Preferably, a contact ball is movably connected inside the overflow port, and a contact sensing probe is provided at the top of the contact ball. A support frame is fixedly connected to the top of the contact sensing probe, and the bottom of the support frame is fixedly connected to the top surface of the casting mold. The contact sensing probe is electrically connected to the display screen through a circuit.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) When the ceramic slurry fills the mold, it overflows from the overflow port and triggers the contact sensing probe. This signal can automatically cut off the injection process, effectively avoiding the delay and error of manual observation and ensuring the accuracy of the injection amount. At the same time, during the cooling stage, the cooling tube with integrated temperature sensing probe will extend into the mold to collect and feed back the temperature data of key positions in real time and generate a temperature field distribution map. This method of deeply integrating non-destructive testing of internal quality with the casting process allows operators to intuitively monitor the solidification state of the casting and discover potential internal defects in a timely manner, thus ensuring the casting quality of the ceramic axial flow pump body from the source. This achieves automation of the casting process and precision of quality control, significantly improving production efficiency and product qualification rate.

[0016] (2) The present invention drives the drive rod with positive and negative threads to rotate by the drive motor, which can smoothly drive the base to rise and fall, so that the cooling pipe can be precisely connected or separated from the mold. When active temperature control is required, the cooling medium can flow through the complete circulation path composed of the diversion pipe, telescopic pipe, series pipe and cooling pipe to achieve directional and efficient cooling of the mold and accurately control the solidification rate and crystallization quality of the ceramic material. In addition, the energy storage of the reset spring and the adaptive extension of the telescopic pipe during the base lifting process ensure the structural stability and sealing of the entire system. This not only simplifies the operation process, but also realizes the precise intervention of the key process parameters of casting, providing a solid technical guarantee for the production of high-performance and high-reliability ceramic pump bodies. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of a partial cross-sectional connection structure of the overflow outlet of the present invention; Figure 4 This is a partial cross-sectional view of the extension block connection of the present invention; Figure 5 This is a schematic diagram of the cooling mechanism of the present invention; Figure 6 for Figure 5 Enlarged structural diagram at point A; Figure 7 This is a schematic diagram of the adjustment mechanism structure of the present invention; Figure 8 This is a schematic diagram of a partial cross-sectional connection structure of the base of the present invention.

[0018] In the diagram: 1. Casting mold; 2. Overflow outlet; 3. Material pipe interface; 4. Extension block; 5. Rectangular groove; 6. Cooling mechanism; 601. Base; 602. Cooling pipe; 603. Connecting hole; 604. Diverter pipe; 605. External pipe; 606. Telescopic pipe; 607. Series pipe; 608. Connecting rod; 609. Return spring; 610. Limiting block; 7. Flaw detection mechanism; 701. Display screen; 702. Wire; 703. Sub-wire; 704. Temperature sensing probe; 8. Adjustment mechanism; 801. Mounting base; 802. Drive rod; 803. Drive block; 804. Drive motor; 9. Socket; 10. Contact ball; 11. Contact sensing probe; 12. Support frame. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1 - Figure 8 This invention provides a technical solution for a ceramic axial flow pump body casting equipment with integrated internal flaw detection function: A ceramic axial flow pump body casting equipment with integrated internal flaw detection function includes a casting mold 1. An overflow port 2 is fixedly connected to the top of the casting mold 1 and is interconnected with the interior of the casting mold 1. A material pipe interface 3 is fixedly connected to the bottom of the casting mold 1 and is interconnected with the interior of the casting mold 1 and used for connecting an external screw extruder. An extension block 4 is fixedly connected to the bottom of the casting mold 1, and a rectangular groove 5 is opened at the bottom of the extension block 4. A cooling mechanism 6 is arranged directly below the rectangular groove 5, and a flaw detection mechanism 7 is movably connected inside the cooling mechanism 6. An adjustment mechanism 8 is arranged directly below the cooling mechanism 6.

[0021] Please see Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the cooling mechanism 6 includes a base 601, which is trapezoidal and has an arc-shaped groove at the bottom. Several cooling tubes 602 are fixedly connected to the surface of the base 601. A connecting hole 603 is longitudinally opened inside the base 601, and both ends of the connecting hole 603 penetrate the base 601. The connecting holes 603 at the bottom of the cooling tubes 602 are interconnected. Several insertion holes 9 are opened at the top of the rectangular groove 5, and each insertion hole 9 corresponds to and is adapted to a cooling tube 602. The cooling tube 602 extends into the interior of the insertion hole 9. The cooling mechanism 6 also includes a distribution pipe 604, which is U-shaped. An external pipe 605 is fixedly connected to the middle of the distribution pipe 604. Telescopic pipes 606 are fixedly connected to both ends of the distribution pipe 604, and series pipes 607 are fixedly connected to the ends of the telescopic pipes 606 away from the distribution pipe 604. The series tube 607 has several output ports, and the series tube 607 is fixedly connected to one end of the connection hole 603 through the several output ports. The cooling tube 602, the connection hole 603, the series tube 607, the telescopic tube 606, the diverter tube 604 and the external tube 605 are internally interconnected. The cooling mechanism 6 also includes a connecting rod 608. There are two sets of connecting rods 608 arranged symmetrically. The two sets of connecting rods 608 are located on both sides of the base 601, and one end of the connecting rod 608 is fixedly connected to the bottom of the extension block 4. A return spring 609 is sleeved on the outside of the connecting rod 608. A set of symmetrical limiting blocks 610 are fixedly connected to both sides of the base 601. The end of the connecting rod 608 away from the extension block 4 passes through the limiting block 610 and extends to its bottom. A stop block is fixedly connected to the bottom of the connecting rod 608, and the return spring 609 is located directly above the limiting block 610.

[0022] The cooling medium circulation path is formed by the integrated cooling pipe 602, connecting hole 603, series pipe 607, diverter pipe 604 and telescopic pipe 606 on the base 601. When the base 601 is lifted so that the cooling pipe 602 extends into the casting mold 1, it can achieve directional active cooling of the casting. At the same time, the connecting rod 608 and the return spring 609 cooperate to provide guidance and automatic reset capability for the lifting and lowering of the base 601. The design of the telescopic pipe 606 ensures that the sealing and connectivity of the entire cooling circuit are not affected during the movement of the base 601. Thus, the detection function of the temperature sensing probe 704 and the active cooling function are integrated into one, providing a stable and reliable structural foundation for accurately controlling the solidification process of the casting and conducting internal quality assessment.

[0023] Please see Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, the flaw detection mechanism 7 includes a display screen 701. A wire 702 is fixedly connected to the rear side of the display screen 701. The other end of the wire 702 passes through the base 601 and is inserted into the connection hole 603 in the middle of the longitudinal direction. Several auxiliary wires 703 are fixedly connected to the outside of the wire 702. The other end of the auxiliary wires 703 extends to the top of the cooling tube 602. A temperature sensing probe 704 is fixedly connected to the top of each auxiliary wire 703. The temperature sensing probe 704 is fixedly connected to the top of the cooling tube 602.

[0024] By precisely installing multiple temperature sensing probes 704 at the top of the cooling tube 602, they can directly contact the bottom of the casting mold 1 when the cooling mechanism 6 rises, thereby collecting temperature data of key locations inside the mold in real time. This data is collected through the auxiliary line 703 to the lead wire 702 and finally transmitted to the display screen 701, presented in the form of an intuitive temperature field distribution map. This allows operators to clearly grasp the temperature change pattern during the solidification process of the casting and promptly detect internal defects that may be caused by uneven temperature, thus realizing online non-destructive testing and scientific evaluation of casting quality.

[0025] Please see Figure 3 , Figure 5 and Figure 7 As shown, the adjustment mechanism 8 includes a mounting base 801. A drive rod 802 is movably connected to the surface of the mounting base 801 via a rotating shaft. A set of symmetrical positive and negative threads are provided on the outer side of the drive rod 802. A set of symmetrical drive blocks 803 are movably connected to the outer side of the drive rod 802 via positive and negative threads. The top of the drive block 803 is arc-shaped and fits against the arc-shaped groove surface of the base 601. A drive motor 804 is fixedly connected to one end of the mounting base 801, and the output end of the drive motor 804 is fixedly connected to one end of the drive rod 802 via a coupling.

[0026] The drive motor 804 drives the drive rod 802, which has positive and negative threads on its surface, to rotate. This drives two symmetrical drive blocks 803 to move synchronously towards or away from each other. The two drive blocks 803 have their arc-shaped tops tightly fitted with the arc-shaped grooves at the bottom of the base 601, efficiently converting the rotational motion into the vertical lifting motion of the base 601. This ensures the stability and accuracy of the base 601 during the lifting process and realizes the automated and precise position adjustment of the entire cooling and flaw detection system.

[0027] Please see Figure 3 As shown, a contact ball 10 is movably connected inside the overflow port 2, and a contact sensing probe 11 is provided at the top of the contact ball 10. A support frame 12 is fixedly connected to the top of the contact sensing probe 11, and the bottom of the support frame 12 is fixedly connected to the top surface of the casting mold 1. The contact sensing probe 11 is electrically connected to the display screen 701 through a circuit.

[0028] Excess slurry overflows from overflow outlet 2, pushing contact ball 10 upwards and triggering contact sensor 11. The detection signal is immediately transmitted to the control system, automatically cutting off the injection process. Compared with the traditional manual observation method, this automatic detection mechanism effectively avoids operation delays, significantly improves injection accuracy, and reduces material waste. Working principle: When using the equipment, first prepare the equipment by placing the casting mold 1 in a vacuum environment and ensuring that the feed pipe interface 3 is reliably connected to the screw extruder. After the equipment preparation is completed, start the injection program and continuously inject ceramic slurry into the cavity of the casting mold 1 through the feed pipe interface 3. When the cavity is completely filled, excess slurry overflows from the overflow port 2, pushing the contact ball 10 to move upward, triggering the contact sensing probe 11, and the detection signal is immediately transmitted to the control system to automatically cut off the injection process. After the injection is completed, the flaw detection stage begins. The drive motor 804 is started, which drives the drive rod 802 to rotate. Since the surface of the drive rod 802 is provided with positive and negative threads, the drive block 803 moves in opposite directions under the thread drive, which smoothly lifts the base 601. During this process, the cooling pipe 602 fixed on the base 601 is simultaneously inserted into the insertion hole 9 at the bottom of the casting mold 1 until the temperature sensing probe 704 completely contacts the top of the insertion hole 9. During the lifting process of the base 601, the return spring 609 on the outside of the connecting rod 608 is compressed and stored by the pressure of the limiting block 610. At the same time, the telescopic tube 606 automatically extends with the movement of the base 601, maintaining the connectivity and sealing of the entire cooling circuit. The temperature sensing probe 704 begins to collect the internal temperature data of the mold in real time. This data is transmitted to the display screen 701 through the auxiliary line 703 and the wire 702 to generate a complete temperature field distribution map, providing a scientific basis for the internal quality assessment of the casting. When active temperature control is required, the cooling medium can be connected through the external pipe 605. The cooling medium flows through the complete circulation path consisting of the distribution pipe 604, the telescopic pipe 606, the series pipe 607, the connecting hole 603, and the cooling pipe 602 in sequence, so as to realize the directional active cooling of the casting mold 1 and precisely control the solidification process of the ceramic material.

[0029] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A ceramic axial flow pump body casting equipment with integrated internal flaw detection function, comprising a casting mold (1), characterized in that: The top of the casting mold (1) is fixedly connected to an overflow port (2), and the overflow port (2) is interconnected with the interior of the casting mold (1). The bottom of the casting mold (1) is fixedly connected to a material pipe interface (3), which is interconnected with the interior of the casting mold (1) and is used to connect to an external screw extruder. The bottom of the casting mold (1) is fixedly connected to an extension block (4), and a rectangular groove (5) is provided at the bottom of the extension block (4). A cooling mechanism (6) is provided directly below the rectangular groove (5), and a flaw detection mechanism (7) is movably connected inside the cooling mechanism (6). An adjustment mechanism (8) is provided directly below the cooling mechanism (6).

2. The ceramic axial flow pump body casting equipment with integrated internal flaw detection function according to claim 1, characterized in that: The cooling mechanism (6) includes a base (601), which is trapezoidal and has an arc groove at the bottom. Several cooling tubes (602) are fixedly connected to the surface of the base (601). A connecting hole (603) is longitudinally opened inside the base (601), and the two ends of the connecting hole (603) penetrate the base (601). The bottoms of the cooling tubes (602) are connected to each other by the connecting holes (603) in the same longitudinal section. Several insertion holes (9) are opened at the top of the rectangular groove (5). The insertion holes (9) correspond to and are adapted to the cooling tubes (602). The cooling tubes (602) extend into the interior of the insertion holes (9).

3. The ceramic axial flow pump body casting equipment with integrated internal flaw detection function according to claim 2, characterized in that: The cooling mechanism (6) also includes a diversion pipe (604), which is U-shaped. An external pipe (605) is fixedly connected to the middle of the diversion pipe (604). Telescopic pipes (606) are fixedly connected to both ends of the diversion pipe (604), and a series pipe (607) is fixedly connected to the end of the telescopic pipe (606) away from the diversion pipe (604). The series pipe (607) has several output ports, and the series pipe (607) is fixedly connected to one end of the connection hole (603) through several output ports. The cooling pipe (602), connection hole (603), series pipe (607), telescopic pipe (606), diversion pipe (604) and external pipe (605) are interconnected internally.

4. The ceramic axial flow pump body casting equipment with integrated internal flaw detection function according to claim 3, characterized in that: The cooling mechanism (6) also includes a connecting rod (608). The connecting rod (608) is provided in two sets and is symmetrically arranged. The two sets of connecting rods (608) are located on both sides of the base (601), and one end of the connecting rod (608) is fixedly connected to the bottom of the extension block (4). A return spring (609) is sleeved on the outside of the connecting rod (608). A set of symmetrical limiting blocks (610) is fixedly connected on both sides of the base (601). The end of the connecting rod (608) away from the extension block (4) passes through the limiting block (610) and extends to its bottom. A stop block is fixedly connected to the bottom of the connecting rod (608), and the return spring (609) is located directly above the limiting block (610).

5. The ceramic axial flow pump body casting equipment with integrated internal flaw detection function according to claim 1, characterized in that: The flaw detection mechanism (7) includes a display screen (701). A wire (702) is fixedly connected to the rear side of the display screen (701). The other end of the wire (702) passes through the base (601) and is inserted into the connection hole (603) in the middle of the longitudinal direction. Several auxiliary wires (703) are fixedly connected to the outside of the wire (702). The other end of the auxiliary wires (703) extends to the top of the cooling tube (602).

6. The ceramic axial flow pump body casting equipment with integrated internal flaw detection function according to claim 5, characterized in that: Each of the sub-lines (703) is fixedly connected to a temperature sensing probe (704), and the temperature sensing probe (704) is fixedly connected to the top of the cooling tube (602).

7. The ceramic axial flow pump body casting equipment with integrated internal flaw detection function according to claim 1, characterized in that: The adjustment mechanism (8) includes a mounting base (801), and a drive rod (802) is movably connected to the surface of the mounting base (801) via a rotating shaft. A set of symmetrical positive and negative threads are provided on the outer side of the drive rod (802). A set of symmetrical drive blocks (803) are movably connected to the outer side of the drive rod (802) via positive and negative threads. The top of the drive block (803) is arc-shaped and fits against the arc-shaped groove surface of the base (601).

8. The ceramic axial flow pump body casting equipment with integrated internal flaw detection function according to claim 7, characterized in that: One end of the mounting base (801) is fixedly connected to a drive motor (804), and the output end of the drive motor (804) is fixedly connected to one end of the drive rod (802) via a coupling.

9. A ceramic axial flow pump body casting equipment with integrated internal flaw detection function according to claim 1, characterized in that: The overflow port (2) is movably connected to a contact ball (10), and a contact sensing probe (11) is provided at the top of the contact ball (10). A support frame (12) is fixedly connected to the top of the contact sensing probe (11), and the bottom of the support frame (12) is fixedly connected to the top surface of the casting mold (1). The contact sensing probe (11) is electrically connected to the display screen (701) through a line.

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