Anti-eccentric metal powder injection mold

Abstract

The utility model belongs to injection molding mold technical field especially relates to a kind of metal powder injection mold of anti-deviation, it includes: bottom plate, the top surface of bottom plate four corners are evenly fixedly installed with slide bar, the same lifting plate is slidably installed on four slide bars;Two fixing frames, two fixing frames are fixedly installed on the top surface of bottom plate and the bottom surface of lifting plate respectively, connecting plate is fixedly installed on two fixing frames, detachable plate is equipped on two connecting plates, lower mould and upper mould are fixedly installed on the surface of two detachable plates respectively, this kind of installation mode, not only strong stability, and installation process is simple, after upper mould and lower mould installation, it can guarantee that two lower moulds and upper moulds are not deviated, and strong fixation, also can according to actual situation dismount detachable plate to replace different specifications lower mould and upper mould, to improve the efficiency of production.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding mold technology, and in particular relates to a metal powder injection mold that prevents displacement. Background Technology

[0002] Injection molding technology is a modern plastic injection molding technology. Metal powder injection molding molds are a new type of near-net-shape forming technology in powder metallurgy, which is formed by introducing modern plastic injection molding technology into the field of powder metallurgy. Because it is effective in manufacturing high-density, high-precision, and three-dimensional complex shape structural parts, it is widely used. Metal powder injection molding molds are required when performing metal powder injection molding.

[0003] However, in practical applications, existing metal powder injection molding dies still commonly use traditional bolt fastening and pin positioning methods to fix the upper and lower molds together. This traditional connection structure has significant drawbacks: firstly, the mold is prone to slight displacement under conditions such as injection pressure and temperature changes, causing the positioning reference of the upper and lower molds to shift; secondly, errors in manual mold closing operations further amplify positioning deviations, resulting not only in molding defects such as dimensional inconsistencies, flash, and material shortages, but also, in severe cases, mold cavity wear or direct part scrapping. This significantly impacts production efficiency and product qualification rates, making it difficult to meet the mass production needs of precision parts in high-end manufacturing. Utility Model Content

[0004] The purpose of this invention is to provide a metal powder injection mold that prevents deviation, so as to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a metal powder injection mold for preventing displacement, comprising:

[0006] The base plate has sliding rods fixedly installed at the four corners of its top surface, and the same lifting plate is slidably installed on the four sliding rods.

[0007] Two fixed frames are respectively fixedly installed on the top surface of the base plate and the bottom surface of the lifting plate. A connecting plate is fixedly installed on each of the two fixed frames. A detachable plate is provided on each of the two connecting plates. A lower mold and an upper mold are respectively fixedly installed on the surface of the two detachable plates.

[0008] Multiple sleeve holes are respectively opened on two detachable plates. The inner sidewalls of the multiple sleeve holes are provided with inner annular grooves. Each of the multiple sleeve holes is provided with two through grooves, and the multiple through grooves are respectively connected to the multiple inner annular grooves.

[0009] Multiple rotating shafts are rotatably mounted on two connecting plates, and limit blocks are fixedly installed on both sides of the multiple rotating shafts. The multiple rotating shafts are movably sleeved with multiple sleeve holes, and the multiple limit blocks are respectively arranged in multiple inner annular grooves.

[0010] Two sets of adjustment components are respectively mounted on two fixed frames and are used to drive multiple rotating shafts to rotate.

[0011] In the above technical solution, the adjusting component further includes multiple gears, which are rotatably mounted on the surface of the fixed frame. One end of each gear is fixedly connected to one end of a multiple rotating shaft. A movable plate and two racks are slidably mounted on the surface of the fixed frame. One end of each rack is fixedly connected to one side of the movable plate. Each rack meshes with a multiple gear. When the movable plate moves, it pushes the racks to move. When the racks move, they drive the multiple rotating shafts to rotate simultaneously through the multiple gears, causing the limiting blocks on the multiple rotating shafts to misalign with the through grooves. At this time, the cooperation between the limiting blocks and the inner annular groove will limit the two detachable plates to the base plate and the lifting plate respectively.

[0012] In the above technical solution, a plate groove is further provided on one side of the fixing frame, and a lead screw is rotatably installed in the plate groove. A threaded sleeve is threadedly connected to the lead screw, and one end of the threaded sleeve is fixedly connected to the outer wall of the moving plate. When the lead screw rotates, it will drive the moving plate to move.

[0013] In the above technical solution, a motor is further fixedly installed on one side of the fixing frame, and one end of the motor output shaft is fixedly connected to one end of the lead screw. Starting the motor drives the lead screw to rotate.

[0014] In the above technical solution, further, the top of the four slide rods is fixedly installed with the same top platform, and a hydraulic cylinder is fixedly installed on the top surface of the top platform. The bottom end of the hydraulic cylinder passes through the top platform and is fixedly connected to the top surface of the lifting plate. When the hydraulic cylinder is activated, it drives the lifting plate to descend, so that the upper mold and the lower mold are pressed together.

[0015] In the above technical solution, further, the number of the plurality of limiting blocks and the number of through slots are the same, the specifications of the plurality of limiting blocks are adapted to the specifications of the plurality of through slots, and the plurality of limiting blocks can enter the plurality of inner annular slots through the through slots.

[0016] In the above technical solution, the two detachable plates are respectively tightly fitted to the two connecting plates. The tight fit between the detachable plates and the connecting plates ensures that the detachable plates will not move when installed on the connecting plates.

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

[0018] 1. In this anti-displacement metal powder injection mold, when installing the lower and upper molds, multiple limiting blocks are aligned with multiple through slots, and multiple rotating shafts are fitted into the corresponding sleeve holes. At this time, the motor is started to drive the lead screw to rotate. When the lead screw rotates, it will drive the moving plate to move. When the moving plate moves, it will push the rack to move. When the rack moves, it will drive multiple rotating shafts to rotate simultaneously through multiple gears, causing the limiting blocks on the multiple rotating shafts to be misaligned with the through slots. At this time, the cooperation between the limiting blocks and the inner annular groove will limit the two detachable plates to the base plate and the lifting plate respectively, thereby realizing the installation of the lower and upper molds.

[0019] 2. This anti-displacement metal powder injection mold has a unique installation method that is not only highly stable but also simple to install. After the upper and lower molds are installed, it ensures that the two lower molds do not shift with the upper mold, providing strong fixation. The detachable plate can also be disassembled to replace the lower and upper molds of different specifications according to the actual situation, thereby improving production efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a partially enlarged structural schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the base plate of this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the detachable plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the fixing frame structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the sleeve structure of this utility model.

[0026] The markings in the diagram are as follows:

[0027] 1. Base plate; 2. Slide rod; 3. Lifting plate; 4. Fixing frame; 5. Connecting plate; 6. Detachable plate; 7. Lower mold; 8. Upper mold; 9. Sleeve hole; 10. Inner annular groove; 11. Through groove; 12. Rotating shaft; 13. Limiting block; 14. Rack; 15. Gear; 16. Moving plate; 17. Plate groove; 18. Threaded sleeve; 19. Lead screw; 20. Motor; 21. Top platform; 22. Hydraulic cylinder. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0029] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0031] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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 application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0032] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0033] Example 1:

[0034] Please see Figures 1-6 As shown, this embodiment provides a metal powder injection mold that prevents displacement.

[0035] include:

[0036] The base plate 1 has four fixed sliding rods 2 at the four corners of its top surface, and the same lifting plate 3 is slidably installed on the four sliding rods 2.

[0037] Two fixed frames 4 are fixedly installed on the top surface of the base plate 1 and the bottom surface of the lifting plate 3 respectively. A connecting plate 5 is fixedly installed on each of the two fixed frames 4. A detachable plate 6 is provided on each of the two connecting plates 5. A lower mold 7 and an upper mold 8 are fixedly installed on the surface of the two detachable plates 6 respectively.

[0038] Multiple sleeve holes 9 are respectively opened on two detachable plates 6. The inner sidewall of each sleeve hole 9 is provided with an inner annular groove 10. Each sleeve hole 9 is provided with two through grooves 11, and the through grooves 11 are respectively connected to the multiple inner annular grooves 10.

[0039] Multiple rotating shafts 12 are rotatably mounted on two connecting plates 5. Limiting blocks 13 are fixedly installed on both sides of the multiple rotating shafts 12. The multiple rotating shafts 12 are movably connected to multiple sleeve holes 9. The multiple limiting blocks 13 are respectively set in multiple inner annular grooves 10.

[0040] Two sets of adjustment components are respectively set on two fixed frames 4 and are used to drive multiple rotating shafts 12 to rotate.

[0041] Example 2:

[0042] This embodiment provides a metal powder injection mold that prevents displacement. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0043] The adjustment assembly includes multiple gears 15, which are rotatably mounted on the surface of the fixed frame 4. One end of each gear 15 is fixedly connected to one end of each of the multiple rotating shafts 12. A movable plate 16 and two racks 14 are slidably mounted on the surface of the fixed frame 4. One end of each rack 14 is fixedly connected to one side of the movable plate 16. Each rack 14 meshes with one of the gears 15. When the movable plate 16 moves, it pushes the racks 14 to move. When the racks 14 move, they drive the multiple rotating shafts 12 to rotate simultaneously through the multiple gears 15, causing the limiting blocks 13 on the multiple rotating shafts 12 to be misaligned with the through grooves 11. At this time, the two detachable plates 6 are respectively limited on the base plate 1 and the lifting plate 3 by the cooperation of the limiting blocks 13 and the inner annular groove 10.

[0044] Example 3:

[0045] This embodiment provides a metal powder injection mold that prevents displacement. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0046] The fixed frame 4 has a plate groove 17 on one side, and a lead screw 19 is rotatably installed in the plate groove 17. A threaded sleeve 18 is threadedly connected to the lead screw 19. One end of the threaded sleeve 18 is fixedly connected to the outer wall of the movable plate 16. When the lead screw 19 rotates, it will drive the movable plate 16 to move.

[0047] Example 4:

[0048] This embodiment provides a metal powder injection mold that prevents displacement. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0049] Among them, a motor 20 is fixedly installed on one side of the fixed frame 4. One end of the output shaft of the motor 20 is fixedly connected to one end of the lead screw 19. When the motor 20 is started, it drives the lead screw 19 to rotate.

[0050] Example 5:

[0051] This embodiment provides a metal powder injection mold that prevents displacement. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0052] Among them, the top of multiple sliding rods 2 is fixedly installed with the same top platform 21, and the top surface of the top platform 21 is fixedly installed with a hydraulic cylinder 22. The bottom end of the hydraulic cylinder 22 passes through the top platform 21 and is fixedly connected to the top surface of the lifting plate 3. When the hydraulic cylinder 22 is started, it drives the lifting plate 3 to descend, so that the upper mold 8 and the lower mold 7 are pressed together.

[0053] Example 6:

[0054] This embodiment provides a metal powder injection mold that prevents displacement. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0055] The number of multiple limiting blocks 13 is the same as the number of through slots 11. The specifications of the multiple limiting blocks 13 are adapted to the specifications of the multiple through slots 11. The multiple limiting blocks 13 can enter the multiple inner annular slots 10 through the through slots 11. Example 7:

[0056] This embodiment provides a metal powder injection mold that prevents displacement. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0057] Among them, the two detachable plates 6 are tightly fitted to the two connecting plates 5 respectively. The tight fit between the detachable plates 6 and the connecting plates 5 can ensure that the detachable plates 6 will not move when installed on the connecting plates 5.

[0058] In use: When installing the lower mold 7 and the upper mold 8, align the positions of the multiple limiting blocks 13 with the multiple through slots 11, and fit the multiple rotating shafts 12 into the corresponding sleeve holes 9. At this time, start the motor 20 to drive the lead screw 19 to rotate. When the lead screw 19 rotates, it will drive the moving plate 16 to move. When the moving plate 16 moves, it will push the rack 14 to move. When the rack 14 moves, it will drive the multiple rotating shafts 12 to rotate simultaneously through the multiple gears 15, so that the limiting blocks 13 on the multiple rotating shafts 12 are aligned with the through slots 11. When misaligned, the limiting block 13 and the inner annular groove 10 will respectively limit the two detachable plates 6 to the base plate 1 and the lifting plate 3, thereby realizing the installation of the lower mold 7 and the upper mold 8. This installation method is not only highly stable, but also simple in installation process. After the upper mold 8 and the lower mold 7 are installed, it can be ensured that the two lower molds 7 and the upper mold 8 do not shift and have strong fixation. The detachable plates 6 can also be disassembled according to the actual situation to replace the lower mold 7 and the upper mold 8 of different specifications, thereby improving production efficiency.

[0059] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A metal powder injection mold for preventing displacement, characterized in that, include: The base plate (1) has four corners on the top surface of the base plate (1) with slide rods (2) fixedly installed, and the same lifting plate (3) is slidably installed on the four slide rods (2). Two fixed frames (4) are fixedly installed on the top surface of the base plate (1) and the bottom surface of the lifting plate (3), respectively. A connecting plate (5) is fixedly installed on each of the two fixed frames (4). A detachable plate (6) is provided on each of the two connecting plates (5). A lower mold (7) and an upper mold (8) are fixedly installed on the surface of each of the two detachable plates (6). Multiple sleeve holes (9) are respectively opened on two detachable plates (6). The inner sidewalls of the multiple sleeve holes (9) are provided with inner annular grooves (10). The multiple sleeve holes (9) are provided with two through grooves (11). The multiple through grooves (11) are respectively connected to the multiple inner annular grooves (10). Multiple rotating shafts (12) are rotatably mounted on two connecting plates (5). Limiting blocks (13) are fixedly installed on both sides of the multiple rotating shafts (12). The multiple rotating shafts (12) are movably connected to multiple sleeve holes (9). The multiple limiting blocks (13) are respectively set in multiple inner annular grooves (10). Two sets of adjustment components are respectively set on two fixed frames (4) and are used to drive multiple rotating shafts (12) to rotate.

2. The anti-deviation metal powder injection mold according to claim 1, characterized in that, The adjustment assembly includes multiple gears (15), which are rotatably mounted on the surface of the fixed frame (4). One end of each gear (15) is fixedly connected to one end of each shaft (12). A movable plate (16) and two racks (14) are slidably mounted on the surface of the fixed frame (4). One end of each rack (14) is fixedly connected to one side of the movable plate (16), and each rack (14) meshes with the multiple gears (15).

3. The anti-deviation metal powder injection mold according to claim 1, characterized in that, A plate groove (17) is provided on one side of the fixed frame (4). A lead screw (19) is rotatably installed in the plate groove (17). A threaded sleeve (18) is threadedly connected to the lead screw (19). One end of the threaded sleeve (18) is fixedly connected to the outer wall of the movable plate (16).

4. The anti-deviation metal powder injection mold according to claim 1, characterized in that, A motor (20) is fixedly installed on one side of the fixed frame (4), and one end of the output shaft of the motor (20) is fixedly connected to one end of the lead screw (19).

5. The anti-deviation metal powder injection mold according to claim 1, characterized in that, The top of each of the four slide rods (2) is fixedly mounted on the same top platform (21), and a hydraulic cylinder (22) is fixedly mounted on the top surface of the top platform (21). The bottom end of the hydraulic cylinder (22) passes through the top platform (21) and is fixedly connected to the top surface of the lifting plate (3).

6. The anti-deviation metal powder injection mold according to claim 1, characterized in that, The number of the plurality of limiting blocks (13) is the same as the number of through slots (11), and the specifications of the plurality of limiting blocks (13) are adapted to the specifications of the plurality of through slots (11).

7. The anti-deviation metal powder injection mold according to claim 1, characterized in that, The two detachable plates (6) are respectively tightly attached to the two connecting plates (5).

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