A new powder feeding device

Abstract

The utility model discloses a novel powder feeding device, including powder feeding barrel, powder feeding pipe, powder box, powder box drive arrangement, material pipe adapter, pneumatic butterfly valve, butterfly valve fixed plate, the output part drive connection of powder box and powder box drive arrangement, the pneumatic butterfly valve is fixedly installed in the top of female mould slide plate through butterfly valve fixed plate, the material pipe adapter is fixedly installed in the feed end of pneumatic butterfly valve, the powder feeding barrel's discharge port is connected with material pipe adapter through powder feeding pipe, the powder box top is provided with the blanking outlet of the communication its inner chamber, the discharge end of pneumatic butterfly valve is linked with blanking outlet, the powder box is inverted in female mould slide plate, the powder box drive arrangement can drive powder box and advance or retreat on female mould slide plate. The utility model discloses the powder box advances or retreats along the slide plate under the drive of powder box drive arrangement, and powder feeding pipe keeps fixed and is not pulled, thereby avoids the influence of the pulling or displacement of powder feeding pipe, guarantees the stability and consistency of the discharging process.

Description

Technical Field

[0001] This utility model relates to the technical field of powder forming press feeding device, and more specifically, to a novel powder feeding device. Background Technology

[0002] Powder molding presses are devices that use metal powder (or a mixture of metal and non-metal powders) as raw materials to process products into specific shapes. The process generally includes three steps: mixing, pressing, and sintering. The master mold of the powder molding equipment typically has cavities. After mixing, the uniformly mixed powder needs to be filled into the cavities of the master mold before pressing. Traditional powder feeding mechanisms, such as the one disclosed in patent announcement CN217916955U, which is easy to disassemble and install, include a powder box, a connecting frame, and a powder box drive device. In this powder box drive device, the powder inlet pipe of the powder box is directly connected to the powder feeding pipe. When the powder box drive device drives the powder box to feed powder, the powder feeding pipe is continuously pulled, disrupting the continuity of powder flow, leading to unstable feeding, clumping, and inconsistent powder filling in the cavities, affecting molding stability and product quality. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects in the prior art and provide a new type of powder feeding device that avoids the powder feeding tube being pulled due to the movement of the powder box, ensures the stability and uniformity of the feeding, and thus ensures the quality of the subsequent pressed and molded products.

[0004] To achieve the above objectives, this utility model provides a novel powder feeding device, including a powder feeding hopper, a powder feeding pipe, a powder box, a powder box driving device, a material pipe adapter, a pneumatic butterfly valve, and a butterfly valve fixing plate. The powder box is connected to the output part of the powder box driving device. The pneumatic butterfly valve is fixedly installed above the master mold slide plate via the butterfly valve fixing plate. The material pipe adapter is fixedly installed at the inlet end of the pneumatic butterfly valve. The outlet of the powder feeding hopper is connected to the material pipe adapter via the powder feeding pipe. The top of the powder box has a discharge port communicating with its internal cavity. The discharge end of the pneumatic butterfly valve is connected to the discharge port. The powder box is inverted on the top surface of the master mold slide plate. The powder box driving device can drive the powder box to move forward or backward on the master mold slide plate.

[0005] Preferably, a powder box discharge nozzle is fixedly connected to the top of the powder box discharge port, and the discharge end of the pneumatic butterfly valve is connected to the powder box discharge nozzle and communicates with the inner cavity of the powder box through the powder box discharge nozzle.

[0006] Preferably, the system also includes a first residual powder recovery box and a second residual powder recovery box. The top opening of the first residual powder recovery box is located below one end of the butterfly valve fixing plate and the mother mold slide plate, and the top opening of the second residual powder recovery box is located below the other end of the slide plate.

[0007] Preferably, the powder cartridge drive device includes a powder cartridge drive motor, a powder cartridge swing arm, a powder delivery push rod, and a connecting frame. The lower end of the powder cartridge swing arm is connected to the powder cartridge drive motor, the upper end of the powder cartridge swing arm is hinged to the end of the powder delivery push rod, and the front end of the powder delivery push rod is connected to the top of the downwardly inclined connecting frame.

[0008] Preferably, powder box ear clips are fixedly connected to both sides of the powder box. The connecting frame includes a connecting plate, a first connecting arm, and a second connecting arm. The connecting plate is horizontally fixedly connected or rotatably connected to the front end of the powder feeding push rod. The first connecting arm and the second connecting arm are respectively parallel to both sides of the connecting plate. The front ends of the first connecting arm and the second connecting arm are respectively provided with buckle grooves that are rotatably connected to the powder box ear clips.

[0009] Preferably, the device also includes a pressing device for tightly fitting the powder box to the top of the master mold slide. The pressing device includes a powder box pressing cylinder, a hinge fork block, and a hinge seat. The powder box pressing cylinder has two cylinders, and the heads of its output rods are rotatably connected to the connecting lugs fixed to the two side walls of the middle part of the connecting frame through their respective corresponding hinge fork blocks. The hinge seat has two cylinders, and they are rotatably connected to the top of their respective powder box pressing cylinders.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This utility model features a novel structure and reasonable design. By setting a pneumatic butterfly valve between the discharge end of the powder feeding pipe and the discharge port of the powder box, indirect communication is achieved. This ensures that when the powder box moves forward or backward along the slide plate under the drive of the powder box drive device, the powder feeding pipe remains fixed and is not pulled. This avoids the influence of the powder feeding pipe being pulled or displaced, effectively eliminating problems such as uneven powder feeding and clumping caused by the pulling of the powder feeding pipe. This ensures the stability and uniformity of the feeding process, as well as the consistency of the amount of powder filled in the cavity, providing a basic guarantee for the quality of the product after subsequent pressing and molding. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a top view of the structure provided in this embodiment of the utility model. Figure 1 ;

[0014] Figure 2 This is a bottom view structural diagram provided in an embodiment of the present utility model;

[0015] Figure 3 This is a top view of the structure provided in this embodiment of the utility model. Figure 2 ;

[0016] Figure 4 This is an enlarged schematic diagram of the working state provided in an embodiment of this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] Please refer to Figure 1 The present invention provides a novel powder feeding device, including a powder feeding hopper 81, a powder feeding pipe 82, a powder box 83, a powder box driving device 84, a material pipe adapter 86, a pneumatic butterfly valve 87, a butterfly valve fixing plate 88, and other components. The following is a detailed description of each component of the present invention with reference to the accompanying drawings.

[0019] like Figure 1 and Figure 2 As shown, the powder box 83 can be connected to the output part of the powder box drive device 84. The pneumatic butterfly valve 87 is fixedly installed on the top of the mother mold slide plate 7 through the butterfly valve fixing plate 88. The material pipe adapter 86 is fixedly installed on the inlet end of the pneumatic butterfly valve 87. The outlet of the powder feeding barrel 81 is connected to the material pipe adapter 86 through the powder feeding pipe 82. The top of the powder box 83 has a discharge port 830 that communicates with its inner cavity. The discharge end of the pneumatic butterfly valve 87 is connected to the discharge port 830. The powder box 83 is upside down on the top surface of the mother mold slide plate 7. The powder box drive device 84 can drive the powder box 83 to move forward or backward on the mother mold slide plate 7.

[0020] The powder feeding hopper 81 is used to store the powder to be conveyed. The powder feeding pipe 82 connects the powder feeding hopper 81 and the material pipe adapter 86. The material pipe adapter 86 connects the powder feeding pipe 82 and the pneumatic butterfly valve 87 to prevent powder leakage at the connection. The powder box 83 receives the powder conveyed from the pneumatic butterfly valve 87 and moves on the master mold slide plate 7 under the drive of the powder box drive device 84 to fill the powder into the cavity hole 91 of the master mold 9.

[0021] In this embodiment, the pneumatic butterfly valve 87 can be a commonly available pneumatic butterfly valve. This embodiment does not limit the use of this component, so its structure will not be described in detail.

[0022] To prevent powder leakage during the conveying process, a powder box discharge nozzle 831 can be fixedly connected to the top of the discharge port 830 of the powder box 83. The discharge end of the pneumatic butterfly valve 87 is connected to the powder box discharge nozzle 831 and communicates with the inner cavity of the powder box 83 through the powder box discharge nozzle 831, which can ensure that the powder can accurately enter the inner cavity of the powder box 83.

[0023] Specifically, the powder cartridge drive device 84 may include a powder cartridge drive motor 841, a powder cartridge swing arm 842, a powder delivery push rod 843, and a connecting frame 844. The lower end of the powder cartridge swing arm 842 is connected to the powder cartridge drive motor 841, the upper end of the powder cartridge swing arm 842 is hinged to the end of the powder delivery push rod 843, and the front end of the powder delivery push rod 843 is connected to the top of the downwardly inclined connecting frame 844.

[0024] Preferably, powder box ear clips 832 can be fixedly connected to both sides of the powder box 83. The connecting frame 844 includes a connecting plate 8441, a first connecting arm 8442 and a second connecting arm 8443. The connecting plate 8441 is horizontally fixedly connected or rotatably connected to the front end of the powder feeding push rod 843. The first connecting arm 8442 and the second connecting arm 8443 are respectively parallelly connected to both sides of the connecting plate 8441. The front ends of the first connecting arm 8442 and the second connecting arm 8443 are respectively provided with buckle grooves that are rotatably connected to the powder box ear clips 832.

[0025] Among them, the toner cartridge ear clip 832 makes the connection between the toner cartridge 83 and the connecting bracket 844 more flexible, making it easier to install and remove the toner cartridge 83.

[0026] In this embodiment, a pressing device may also be included for tightly fitting the powder box 83 to the top of the master mold slide plate 7. The pressing device includes a powder box pressing cylinder 861, a hinge fork block 862, and a hinge seat 863. Two powder box pressing cylinders 861 are provided, and their output rod heads are respectively rotatably connected to the connecting ear buckles 8444 fixed on the two side walls of the middle part of the connecting frame 844 through their respective corresponding hinge fork blocks 862. Two hinge seats 863 are provided, and are respectively rotatably connected to the top of their respective powder box pressing cylinders 861.

[0027] In practice, the powder box pressing cylinder 861 can apply a downward force to the powder box 83, ensuring that the powder box 83 moves in close contact with the master mold slide plate 7, thus improving the problem of powder leakage during the movement.

[0028] like Figure 3As shown, it may also include a first residual powder recycling box 891 and a second residual powder recycling box 892. The first residual powder recycling box 891 and the second residual powder recycling box 892 can be fixedly arranged facing upward at both ends of the mother mold 9 and located below both ends of the mother mold slide plate 7. The top opening of the first residual powder recycling box 891 is located below the butterfly valve fixing plate 88 and one end of the mother mold slide plate 7, and the top opening of the second residual powder recycling box 892 is located below the other end of the slide plate 7.

[0029] The working principle of this embodiment is as follows:

[0030] First, the powder in the powder feeding hopper 81 is conveyed through the powder feeding pipe 82 to the feed pipe adapter 86 at the feed end of the pneumatic butterfly valve 87. The pneumatic butterfly valve 87 can control the flow of powder, thereby regulating the amount of powder entering the powder box 83. When a certain amount of powder is loaded into the powder box 83, the pneumatic butterfly valve 87 closes, and the powder box 83 is driven by the powder box drive device 84 to move horizontally on the master mold slide plate 7 and disconnect from the powder feeding pipe 82 (e.g., ...). Figure 4 As shown, the powder feeding pipe 82 remains fixed and is not pulled, and then the powder in the powder box 83 falls precisely into the cavity hole 91 and is fully filled; at the same time, the downward pressing cylinder 851 moves downward to ensure that the powder box 83 can move smoothly against the slide plate 7. Finally, as the powder box driving device 84 drives the powder box 83 to move forward and backward, the powder box 83 can scrape the residual powder on the master mold slide plate 7 to its edge and slide it into the first residual powder collection box 891 and the second residual powder collection box 892 for collection, so as to realize the recycling of residual powder on the master mold slide plate 7 and keep the surface of the master mold slide plate 7 clean.

[0031] It should be noted that the novel powder feeding mechanism of this embodiment can be used with conventional powder forming presses on the market and is compatible with most models. This embodiment does not limit the structure of the powder forming press, so it will not be described in detail here.

[0032] In summary, this utility model achieves indirect connection by setting a pneumatic butterfly valve between the discharge end of the powder feeding pipe and the discharge port of the powder box. This ensures that when the powder box moves forward or backward along the slide plate driven by the powder box drive device, the powder feeding pipe remains fixed and is not pulled, thus avoiding the influence of the powder feeding pipe being pulled or displaced. This effectively eliminates problems such as uneven powder feeding and clumping caused by the pulling of the powder feeding pipe, thereby ensuring the stability and uniformity of the feeding process and the consistency of the powder filling amount in the cavity, providing a basic guarantee for the quality of the product after subsequent pressing and molding.

[0033] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A novel powder feeder characterized by: The device includes a powder feeding hopper, a powder feeding pipe, a powder box, a powder box drive device, a material pipe adapter, a pneumatic butterfly valve, and a butterfly valve fixing plate. The powder box is connected to the output part of the powder box drive device. The pneumatic butterfly valve is fixedly installed on the top of the master mold slide plate via the butterfly valve fixing plate. The material pipe adapter is fixedly installed on the inlet end of the pneumatic butterfly valve. The outlet of the powder feeding hopper is connected to the material pipe adapter via the powder feeding pipe. The top of the powder box has a discharge port communicating with its internal cavity. The discharge end of the pneumatic butterfly valve is connected to the discharge port. The powder box is inverted on the top surface of the master mold slide plate. The powder box drive device can drive the powder box to move forward or backward on the master mold slide plate.

2. A novel powder feeder as claimed in claim 1, wherein: The powder box has a powder box discharge nozzle fixedly connected to the top of the discharge port. The discharge end of the pneumatic butterfly valve is connected to the powder box discharge nozzle and communicates with the inner cavity of the powder box through the powder box discharge nozzle.

3. The novel powder feeding device according to claim 1, characterized in that: It also includes a first residual powder recycling box and a second residual powder recycling box. The top opening of the first residual powder recycling box is located below one end of the butterfly valve fixing plate and the mother mold slide plate, and the top opening of the second residual powder recycling box is located below the other end of the slide plate.

4. The novel powder feeding device according to claim 1, characterized in that: The powder cartridge drive device includes a powder cartridge drive motor, a powder cartridge swing arm, a powder delivery push rod, and a connecting frame. The lower end of the powder cartridge swing arm is connected to the powder cartridge drive motor, the upper end of the powder cartridge swing arm is hinged to the end of the powder delivery push rod, and the front end of the powder delivery push rod is connected to the top of the downwardly inclined connecting frame.

5. A novel powder feeding device according to claim 4, characterized in that: The powder box is fixedly connected to the two side walls of the powder box with powder box ear buckles. The connecting frame includes a connecting plate, a first connecting arm and a second connecting arm. The connecting plate is horizontally fixedly connected or rotatably connected to the front end of the powder feeding push rod. The first connecting arm and the second connecting arm are respectively parallel to each other on both sides of the connecting plate. The front ends of the first connecting arm and the second connecting arm are respectively provided with buckle grooves that are rotatably connected to the powder box ear buckles.

6. A novel powder feeding device according to claim 4, characterized in that: It also includes a pressing device for tightly fitting the powder box to the top of the master mold slide plate. The pressing device includes a powder box pressing cylinder, a hinge fork block and a hinge seat. There are two powder box pressing cylinders, and their output rod heads are rotatably connected to the connecting lugs fixed on the two side walls of the middle part of the connecting frame through their respective corresponding hinge fork blocks. There are two hinge seats, and they are rotatably connected to the top of their respective powder box pressing cylinders.

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