An injection molding device for axial flow pump parts

Abstract

This utility model relates to the field of injection molding technology for parts, and more particularly to an injection molding device for axial flow pump parts. The device includes a mold box, an injection gun mounted outside the mold box, and an ejection mechanism at the bottom of the mold box. The ejection mechanism includes a push rod, and a lifting mechanism at the bottom of the push rod is responsible for pushing the push rod upward. A cutting blade is mounted on the outer side of the push rod near its top. This utility model has the following advantages: When the push rod rises to a set height, the driven rod enters the driven hole. Because the drive screw continuously rotates the second pulley, the second pulley drives the first pulley to rotate via a transmission belt, indirectly causing the driven rod to rotate with the first pulley. The push rod is also forced to rotate. Since the molded part is fixed by the mold box, rotating the push rod will cut the generated scrap material through the cutting blade outside the push rod, saving the subsequent manual scrap cutting step.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology for parts, and in particular to an injection molding device for axial flow pump parts. Background Technology

[0002] An axial flow pump is a type of pump that uses a rotating impeller to propel liquid along its axis. Its main characteristic is that the fluid flows along the pump shaft under the action of the impeller, making it suitable for applications requiring high flow rates and low head, such as water plants, irrigation, and cooling systems. Its components include metal parts and plastic parts. For plastic parts, a specific liquid can be poured into a mold, cooled, and then solidified to create the desired part.

[0003] In existing injection molding equipment, because the ejector structure is located at the bottom, an ejector hole needs to be opened at the bottom of the mold box. This results in scrap material remaining at the bottom of the molded part when the ejector structure ejects the part. This scrap material needs to be manually removed later, which increases the labor burden. Utility Model Content

[0004] The purpose of this invention is to provide an injection molding device for axial flow pump parts to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an injection molding device for axial flow pump parts, including a mold box, an injection gun disposed outside the mold box, an ejection mechanism disposed at the bottom of the mold box, the ejection mechanism including an ejector rod, a lifting mechanism disposed at the bottom of the ejector rod, responsible for pushing the ejector rod upward; a cutting blade disposed near the top of the ejector rod, and a rotating mechanism disposed at the bottom of the ejector rod, wherein the ejector rod will also rotate through the rotating mechanism during the upward movement, responsible for automatically cutting the scrap material.

[0006] As a further description of the above technical solution: the ejection mechanism includes a geared motor, the output end of which is fixedly connected to a drive screw, the outer end of which is threaded with a threaded sleeve, the top of which is fixedly connected to a drive component, and the bottom of which is rotatably connected to a push plate, the drive component being fixedly connected to the push plate.

[0007] As a further description of the above technical solution: a first pulley is fixedly connected to the end of the drive screw, a second pulley is rotatably connected to the bottom of the mold box, a transmission belt is provided on the outside of the first pulley, a driven ring is fixedly sleeved on the outside of the push rod, a plurality of driven rods are fixedly connected to the top of the driven ring, and a plurality of driven holes are opened at the bottom of the first pulley.

[0008] As a further description of the above technical solution: the driven rod is a telescopic structure and is adapted to the driven hole.

[0009] As a further description of the above technical solution: the push plate is provided with a guide hole, and the bottom of the mold box is fixedly connected with a guide rod, which moves through the guide hole.

[0010] This invention provides an injection molding device for axial flow pump parts. It has the following advantages: When the ejector rod rises to a set height, the driven rod enters the driven hole. Since the drive screw continuously rotates the second pulley, the second pulley drives the first pulley to rotate via a transmission belt, indirectly causing the driven rod to rotate with the first pulley. The ejector rod is also forced to rotate. Because the molded part is fixed by the mold box, rotating the ejector rod will cut the generated scrap material through the cutting blade outside the ejector rod, saving the subsequent manual scrap cutting step.

[0011] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0012] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an injection molding device for axial flow pump parts proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the working box of an axial flow pump part injection molding device according to the present invention;

[0015] Figure 3 This is a bottom view of the push plate structure of an injection molding device for an axial flow pump part according to the present invention;

[0016] Figure 4 This is a working demonstration diagram of an injection molding device for an axial flow pump part according to this utility model.

[0017] Legend:

[0018] 1. Mold box; 2. Working box; 3. Gear motor; 4. Ejector rod; 5. Cutting blade; 6. Guide rod; 7. Driven ring; 8. Driven rod; 9. Threaded sleeve; 10. Drive screw; 11. First pulley; 12. Push plate; 13. Drive component; 14. Driven hole; 15. Transmission belt; 16. Second pulley. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1-4 The system includes a mold box 1, an injection gun is installed outside the mold box 1, an ejection mechanism is installed at the bottom of the mold box 1, the ejection mechanism includes an ejector rod 4, a lifting mechanism is installed at the bottom of the ejector rod 4 to push the ejector rod 4 upward; a cutting blade 5 is installed on the outside of the ejector rod 4 near the top, and a rotating mechanism is installed at the bottom of the ejector rod 4. During the upward movement of the ejector rod 4, it will also rotate through the rotating mechanism to automatically cut the scrap material.

[0021] Specifically, a working box 2 is provided at the bottom of the mold box 1, and a display window is provided on the outside of the working box 2. The ejection mechanism is located inside the working box 2, and a cooling mechanism can be provided inside the working box 2 to cool the mold box 1.

[0022] The cutting blade 5 is made of a hard metal, such as stainless steel, and has a conical or pyramidal structure to ensure that the outer end is sharp. The cutting blade 5 is snapped onto the outer end of the top rod 4 and can be replaced periodically.

[0023] As a preferred technical solution of this embodiment, the ejection mechanism includes a reduction motor 3, the output end of the reduction motor 3 is fixedly connected to a drive screw 10, the outer end of the drive screw 10 is connected to a threaded sleeve 9, the top of the threaded sleeve 9 is fixedly connected to a drive member 13, the bottom of the ejector rod 4 is rotatably connected to a push plate 12, and the drive member 13 is fixedly connected to the push plate 12.

[0024] Specifically, the drive component 13 includes an arc-shaped plate and a pair of strip plates, with the arc-shaped plate and the pair of strip plates fixedly connected.

[0025] As a preferred technical solution in this embodiment, the push plate 12 is provided with a guide hole, and the bottom of the mold box 1 is fixedly connected with a guide rod 6, which movably passes through the guide hole.

[0026] Turn on the geared motor 3. The geared motor 3 drives the lead screw 10 to rotate. The lead screw 10 causes the threaded sleeve 9 to rise. The threaded sleeve 9, through the drive component 13, drives the push plate 12 to rise, ultimately achieving the purpose of pushing the top rod 4 to move upward.

[0027] As a preferred technical solution of this embodiment, the end of the drive screw 10 is fixedly connected to a first pulley 11, the bottom of the mold box 1 is rotatably connected to a second pulley 16, a transmission belt 15 is provided on the outside of the first pulley 11, a driven ring 7 is fixedly sleeved on the outside of the top rod 4, a plurality of driven rods 8 are fixedly connected to the top of the driven ring 7, and a plurality of driven holes 14 are opened at the bottom of the first pulley 11.

[0028] Specifically, a transmission belt 15 is fitted around the outside of the first pulley 11 and the second pulley 16. The transmission belt 15 can drive the first pulley 11 and the second pulley 16 to rotate synchronously through the friction surface.

[0029] As a preferred technical solution in this embodiment, the driven rod 8 is a telescopic structure and is adapted to the driven hole 14.

[0030] Specifically, the driven rod 8 includes a hollow rod and a moving rod. A spring is installed inside the hollow rod, and the moving rod is connected to the spring. When the moving rod does not enter the driven hole 14, it will compress the spring. After entering the driven hole 14, it will rotate with the driven ring 7. The push rod 4 continues to rise, and the moving rod can continue to compress the spring until the push rod 4 rotates 1-3 times as needed.

[0031] When the ejector rod 4 rises to the set height, the driven rod 8 enters the driven hole 14. Since the drive screw 10 continuously drives the second pulley 16 to rotate, the second pulley 16 drives the first pulley 11 to rotate through the transmission belt 15, which indirectly causes the driven rod 8 to rotate with the first pulley 11. The ejector rod 4 is also forced to rotate. Since the molded part is fixed by the mold box 1, rotating the ejector rod 4 will cut the generated scrap material through the cutting blade 5 outside the ejector rod 4, saving the subsequent manual cutting of scrap material.

[0032] Furthermore, by driving the ejector rod 4 to rotate, the ejector rod 4 removes the adhesion 1 between itself and the molded part, making it easier for the ejector rod 4 to detach from the molded part.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] 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. An injection molding device for axial flow pump parts, comprising a mold box (1), wherein an injection gun is disposed outside the mold box (1), characterized in that: The bottom of the mold box (1) is provided with an ejection mechanism, which includes an ejector rod (4). The bottom of the ejector rod (4) is provided with a lifting mechanism, which is responsible for pushing the ejector rod (4) upward. The top rod (4) is provided with a cutting blade (5) near the top end. The bottom of the top rod (4) is also provided with a rotating mechanism. During the upward movement of the top rod (4), it will also rotate through the rotating mechanism to automatically cut the scrap material.

2. The injection molding device for axial flow pump parts according to claim 1, characterized in that, The ejection mechanism includes a geared motor (3), the output end of which is fixedly connected to a drive screw (10), the outer end of the drive screw (10) is connected to a threaded sleeve (9), the top of the threaded sleeve (9) is fixedly connected to a drive member (13), the bottom of the ejector rod (4) is rotatably connected to a push plate (12), and the drive member (13) is fixedly connected to the push plate (12).

3. The injection molding device for axial flow pump parts according to claim 2, characterized in that, The end of the drive screw (10) is fixedly connected to a first pulley (11), the bottom of the mold box (1) is rotatably connected to a second pulley (16), a transmission belt (15) is provided on the outside of the first pulley (11), a driven ring (7) is fixedly sleeved on the outside of the top rod (4), a plurality of driven rods (8) are fixedly connected to the top of the driven ring (7), and a plurality of driven holes (14) are opened at the bottom of the first pulley (11).

4. The injection molding device for axial flow pump parts according to claim 3, characterized in that, The driven rod (8) is a telescopic structure and is adapted to the driven hole (14).

5. The injection molding device for axial flow pump parts according to claim 4, characterized in that, The push plate (12) has a guide hole, and the bottom of the mold box (1) is fixedly connected to a guide rod (6), which moves through the guide hole.

Images