A metal injection molding apparatus that prevents deformation

Abstract

The utility model discloses a kind of metal injection molding equipment of deformation prevention, it is related to metal injection molding technical field, including base, the top surface of base is fixedly connected with injection molding machine body, the outer wall of injection molding machine body is fixedly connected with heating assembly, the top side surface of injection molding machine body is equipped with feed inlet.The metal injection molding equipment of deformation prevention, through the heating pipe of helical arrangement, can effectively increase contact area, make heat distribution more evenly, reduce local overheating or cold zone, guarantee feed melting consistency, by promoting the uniformity of feed, can effectively prevent product deformation, and by filter plate, large particle feed in feed is filtered, ensure the uniformity of feed, avoid uneven feed, leading to product deformation, and by self-cleaning component, filter plate can be automatically cleaned, while periodically driving filter plate up and down swing, can carry out vibration type cleaning to blocked feed, effectively improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of metal injection molding technology, specifically to a deformation-resistant metal injection molding equipment. Background Technology

[0002] Metal injection molding is an advanced manufacturing technology that combines the advantages of plastic injection molding and powder metallurgy. It is used to produce small metal parts with complex shapes and high precision. The metal injection molding process is very similar to plastic injection molding, but the raw material used is metal powder instead of plastic. It includes material selection and preparation, injection molding, debinding, and sintering.

[0003] Metal injection molding equipment includes injection molding machines, molds, dewaxing furnaces, sintering furnaces, post-processing equipment, etc. Existing technology (Chinese patent application CN202323353404.2, filed on 2023-12-11) describes a high-strength metal powder injection molding equipment. During use, it includes a base with support plates fixedly connected to both sides of its top. An injection cylinder is fixedly connected to the top of both support plates. The injection cylinder has a feeding mechanism inside, including a first feeding shaft. A first motor is fixedly connected to the end of a fixed plate away from the first feeding shaft. A rotating wheel is fixedly fitted on the outer surface of the first feeding shaft. A second feeding shaft is connected through one end of the injection cylinder, and a driven wheel is fixedly connected to one end of the second feeding shaft. A belt is fitted onto the outer surfaces of the rotating wheel and the driven wheel. Conveying blades are fixedly fitted on the outer surface of the second feeding shaft. A stirring mechanism is installed inside a mixing tank. By setting up the feeding mechanism, the metal powder is fed; by setting up the stirring mechanism, the metal powder and the mixture are fully mixed, while preventing solidification.

[0004] Although existing technology can mix metal powder binders, during operation, the particle size of the feed material made from metal powder and binder differs. The simple inlet structure of the injection molding machine body makes it difficult to intercept large particles, resulting in uneven feeding of the injection molding machine body. Local density differences in the product lead to uneven shrinkage, causing deformation after sintering. Utility Model Content

[0005] The purpose of this invention is to provide a deformation-resistant metal injection molding equipment to solve the problems mentioned in the background art, such as the inconvenience of intercepting large particles, resulting in uneven feeding, uneven shrinkage due to local density differences in the product, and deformation after sintering.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a deformation-resistant metal injection molding equipment, including a base, an injection molding machine body fixedly connected to the top surface of the base, a heating component fixedly connected to the outer wall of the injection molding machine body, and a feed port provided on one side of the top surface of the injection molding machine body.

[0007] A self-cleaning component is fixedly connected to the top surface of the feed inlet, and a support ring is fixedly connected to the inner wall of the feed inlet. A spring is provided on the top of the support ring, and a filter plate is provided on the top of the spring. A trapezoidal block is fixedly connected to the top surface of the filter plate. The self-cleaning component includes a driving component that acts on a scraper to clean the filter plate. At the same time, the scraper cooperates with the trapezoidal block at both ends to achieve a vibration-type cleaning of the filter plate.

[0008] Furthermore, the heating assembly includes a heating chamber fixedly connected to the outer wall of the injection molding machine body, a heating tube fixedly connected to the inner wall of the heating chamber, the heating tube being tightly fitted to the outer wall of the injection molding machine body, and the heating tube being spiral-shaped, with a heater provided on one side of the heating tube.

[0009] Furthermore, the bottom of the filter plate is provided with four springs, which are symmetrically distributed about the central axis of the filter plate, and the filter plate forms an elastic mechanism with the support ring through the springs.

[0010] Furthermore, the driving component includes a geared motor fixedly connected to the top surface of the feed inlet. A first gear is fixedly connected to the output end of the geared motor. A second gear is meshed with the outer wall of the first gear. A rotating rod is fixedly connected to the inner wall of the second gear. A scraper is fixedly connected to the bottom end of the outer wall of the rotating rod. Both ends of the scraper are rotatably connected to a rotating wheel.

[0011] Furthermore, the geared motor forms a transmission mechanism with the rotating rod through the first gear and the second gear.

[0012] Furthermore, the first gear and the second gear are provided with dust covers on their exteriors, and the dust covers are fixedly connected to the top surface of the feed inlet.

[0013] Furthermore, the filter plate has a slip ring in the middle, and the filter plate forms a sliding mechanism with the rotating rod through the slip ring, and the rotating rod forms a rotating mechanism with the slip ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the deformation-resistant metal injection molding equipment adopts a novel structural design, the specific details of which are as follows: (1) The deformation-resistant metal injection molding equipment is equipped with a heating component. The heating tube arranged in a spiral shape can effectively increase the contact area with the injection molding machine body, making the heat distribution more uniform, reducing local overheating or cold areas, ensuring the consistency of feeding and melting, and effectively preventing product deformation by improving the uniformity of feeding.

[0015] (2) The anti-deformation metal injection molding equipment is equipped with a self-cleaning component. The feed is filtered through the filter plate to intercept large particles, ensuring uniformity of the feed and avoiding uneven feeding that could lead to product deformation. The scraper of the self-cleaning component can automatically clean the filter plate. The scraper cooperates with the trapezoidal block on the top surface of the filter plate to move the filter plate downward. The filter plate also slides on the outer wall of the rotating rod through a slip ring to limit the movement of the filter plate. Through the elastic action of the filter plate, spring and support ring, the filter plate can be periodically shaken up and down, which can clean the blocked feed through vibration and effectively improve work efficiency. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the feed inlet structure of this utility model; Figure 3 This is a schematic diagram of the feed inlet structure in the cut-off state of this utility model; Figure 4 This is a schematic diagram of the filter plate structure of this utility model; Figure 5 This is a schematic diagram of the heating component structure of this utility model; Figure 6 This is a schematic diagram of the self-cleaning component structure of this utility model.

[0017] In the diagram: 1. Base; 2. Injection molding machine body; 3. Heating component; 301. Heating chamber; 302. Heating tube; 303. Heater; 4. Feed inlet; 5. Self-cleaning component; 501. Gear motor; 502. First gear; 503. Second gear; 504. Rotating rod; 505. Scraper; 506. Rotary wheel; 6. Support ring; 7. Spring; 8. Filter plate; 9. Trapezoidal block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: Please refer to Figures 1-6 This utility model provides the following technical solution: a deformation-resistant metal injection molding equipment, disclosing a heating component 3, including a base 1, an injection molding machine body 2 fixedly connected to the top surface of the base 1, a heating component 3 fixedly connected to the outer wall of the injection molding machine body 2, and a feed inlet 4 provided on one side of the top surface of the injection molding machine body 2. Figure 5 As shown, a heating chamber 301 is fixedly connected to the outer wall of the injection molding machine body 2, and a heating pipe 302 is fixedly connected to the inner wall of the heating chamber 301, such as... Figure 1 As shown, the heating element 302 is tightly fitted to the outer wall of the injection molding machine body 2, and as... Figure 5 As shown, the heating tube 302 is spiral-shaped, and a heater 303 is provided on one side of the heating tube 302.

[0020] When in use, by activating the heater 303, the material being fed into the injection molding machine body 2 can be heated evenly through the heating tube 302. The heating tube 302 is spirally wound and fits against the outer wall of the injection molding machine body 2 at the top of the base 1. By increasing the contact area with the injection molding machine body 2, the heat distribution is more uniform, reducing local overheating or cold areas, ensuring consistent material melting, and effectively preventing product deformation by improving the uniformity of material feeding.

[0021] Example 2: Figures 1-4 and Figure 6 The technical solution shown, based on Embodiment 1, further discloses a self-cleaning component 5, a spring 7, and a filter plate 8. The self-cleaning component 5 is fixedly connected to the top surface of the feed inlet 4. A support ring 6 is fixedly connected to the inner wall of the feed inlet 4. A spring 7 is located on the top of the support ring 6. A filter plate 8 is located on the top of the spring 7. A trapezoidal block 9 is fixedly connected to the top surface of the filter plate 8. Figure 6 As shown, the self-cleaning component 5 includes a driving component that acts on a scraper 505 to clean the filter plate 8. Simultaneously, the scraper 505, through the cooperation of rotating wheels 506 at both ends with trapezoidal blocks 9, achieves a vibration-type cleaning of the filter plate 8. The self-cleaning component 5 includes a reduction motor 501 fixedly connected to the top surface of the feed inlet 4. A first gear 502 is fixedly connected to the output end of the reduction motor 501. A second gear 503 is meshed with the outer wall of the first gear 502. A rotating rod 504 is fixedly connected to the inner wall of the second gear 503. A scraper 505 is fixedly connected to the bottom end of the outer wall of the rotating rod 504. Rotating wheels 506 are rotatably connected to both ends of the scraper 505. Figure 6 As shown, the geared motor 501 forms a transmission mechanism with the rotating rod 504 through the first gear 502 and the second gear 503, as follows: Figure 6 As shown, the first gear 502 and the second gear 503 are provided with dust covers on their exteriors, and the dust covers are fixedly connected to the top surface of the feed inlet 4, as shown. Figure 6As shown, a slip ring is provided in the middle of the filter plate 8, and the filter plate 8 forms a sliding mechanism with the rotating rod 504 through the slip ring, and the rotating rod 504 forms a rotating mechanism with the slip ring. Four springs 7 are provided at the bottom of the filter plate 8, and the springs 7 are symmetrically distributed about the central axis of the filter plate 8. The filter plate 8 forms an elastic mechanism with the support ring 6 through the springs 7.

[0022] When using, such as Figure 3 As shown, before metal injection molding, metal powder and binder are mixed in a certain proportion to form granular feedstock. During operation, the feedstock is intermittently fed into the feed inlet 4 and filtered by the filter plate 8. The weight of the feedstock causes the spring 7 to deform, making the filter plate 8 vibrate up and down on the outer wall of the rotating rod 504. Feedstock that fits the aperture of the filter plate 8 falls into the injection molding machine body 2. The filter plate 8 intercepts large particles of feedstock, ensuring uniformity of feedstock and avoiding uneven feedstock that could cause deformation of the product during sintering. After the feedstock is filtered, the filter plate 8 is in a stationary state. The first gear 502 is driven to rotate by the reduction motor 501. The first gear 502 and the second gear 502 rotate together. The meshing of the two gears 503 drives the rotating rod 504 to rotate, which in turn drives the scraper 505 to rotate and automatically clean the surface of the filter plate 8, thereby improving the filtration efficiency. At the same time, when the rotating wheels 506 at both ends of the scraper 505 come into contact with the trapezoidal block 9 on the top surface of the filter plate 8, the rotating wheels 506 move up along the slope on one side of the trapezoidal block 9, squeezing the filter plate 8 and causing the filter plate 8 to move downward. The filter plate 8 also slides on the outer wall of the rotating rod 504 through the slip ring, which limits the movement of the filter plate 8. Through the elastic action of the filter plate 8, the spring 7 and the support ring 6, the filter plate 8 can be periodically driven to shake up and down, which can vibrate and clean the feed that is clogging the pores of the filter plate 8, effectively improving the working efficiency.

[0023] The above is the entire working process of the device, and the contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A deformation-resistant metal injection molding equipment, comprising a base (1), an injection molding machine body (2) fixedly connected to the top surface of the base (1), a heating component (3) fixedly connected to the outer wall of the injection molding machine body (2), and a feed port (4) provided on one side of the top surface of the injection molding machine body (2). Its features are: A self-cleaning component (5) is fixedly connected to the top surface of the feed inlet (4), a support ring (6) is fixedly connected to the inner wall of the feed inlet (4), a spring (7) is provided on the top of the support ring (6), a filter plate (8) is provided on the top of the spring (7), a trapezoidal block (9) is fixedly connected to the top surface of the filter plate (8), the self-cleaning component (5) includes a driving component, the driving component acts on the scraper (505) to achieve the cleaning work of the filter plate (8), and at the same time, the scraper (505) cooperates with the trapezoidal block (9) through the rotating wheels (506) at both ends to achieve the vibration cleaning work of the filter plate (8).

2. The deformation-resistant metal injection molding equipment according to claim 1, characterized in that: The heating assembly (3) includes a heating chamber (301) fixedly connected to the outer wall of the injection molding machine body (2). A heating tube (302) is fixedly connected to the inner wall of the heating chamber (301). The heating tube (302) is tightly attached to the outer wall of the injection molding machine body (2), and the heating tube (302) is spiral-shaped. A heater (303) is provided on one side of the heating tube (302).

3. The deformation-resistant metal injection molding equipment according to claim 1, characterized in that: The bottom of the filter plate (8) is provided with four springs (7), and the springs (7) are symmetrically distributed about the central axis of the filter plate (8). The filter plate (8) and the support ring (6) form an elastic mechanism through the springs (7).

4. The deformation-resistant metal injection molding equipment according to claim 1, characterized in that: The driving component includes a geared motor (501) fixedly connected to the top surface of the feed inlet (4). The output end of the geared motor (501) is fixedly connected to a first gear (502). The outer wall of the first gear (502) is meshed with a second gear (503). The inner wall of the second gear (503) is fixedly connected to a rotating rod (504). The bottom end of the outer wall of the rotating rod (504) is fixedly connected to a scraper (505). Both ends of the scraper (505) are rotatably connected to a rotating wheel (506).

5. The deformation-resistant metal injection molding equipment according to claim 4, characterized in that: The geared motor (501) forms a transmission mechanism with the rotating rod (504) through the first gear (502) and the second gear (503).

6. The deformation-resistant metal injection molding equipment according to claim 4, characterized in that: The first gear (502) and the second gear (503) are provided with dust covers on their exteriors, and the dust covers are fixedly connected to the top surface of the feed inlet (4).

7. The deformation-resistant metal injection molding equipment according to claim 1, characterized in that: The filter plate (8) has a slip ring in the middle, and the filter plate (8) forms a sliding mechanism with the rotating rod (504) through the slip ring, and the rotating rod (504) forms a rotating mechanism with the slip ring.

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