Molded powder article mold core vibration charging device and powder article press

Abstract

The utility model discloses a kind of moulding powder product mould core vibration feeding devices and powder product press, including feeding box assembly, mould core, mould outer ring and swing mechanism;The mould core is located at the center position of the mould outer ring, and form mould cavity between the two;The feeding box assembly is located at the upper portion of the mould cavity and fills powder material to its inside;The swing mechanism is connected with the mould core and drives it to swing back and forth.The moulding powder product mould core vibration feeding device and powder product press provided by the utility model realize mould core high-frequency swing back and forth to form high-frequency vibration effect by automatic transmission structure, powder material evenly fills mould cavity, avoids material jam;Final product density is consistent, improve the precision and pass rate of product;Effectively solve the powder flow balance problem.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanical equipment for powder pressing and molding products, specifically a vibration feeding device for mold cores of molded powder products and a powder product pressing machine. Background Technology

[0002] Powder compression molding equipment is mainly used to compress various proportioned powdered materials into blanks or finished products of the required shape and density. Traditional press equipment has the following problems during use: First, manual feeding is inefficient and has poor uniformity; second, the automatic feeding device is prone to jamming, making it difficult for material to be discharged from the middle of the mold cavity; finally, the feeding amount is not accurately controlled and is inconvenient to adjust, resulting in inconsistent density of the finished product, which affects the product's accuracy and pass rate.

[0003] Therefore, the aforementioned technical problems need to be solved. Summary of the Invention

[0004] This utility model addresses the above-mentioned technical problems by providing a vibration feeding device for molded powder product cores and a powder product pressing machine. Through an automated transmission structure, the mold core oscillates back and forth at a high frequency to create a high-frequency vibration effect, ensuring that the powder material fills the mold cavity evenly and avoiding material jamming. The final product has a consistent density, improving product accuracy and pass rate, and effectively solving the problem of powder flow balance.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A vibratory feeding device for molded powder product cores includes a feeding box assembly, a mold core, a mold outer ring, and a swing mechanism; the mold core is located at the center of the mold outer ring, forming a mold cavity between the two; the feeding box assembly is located on the upper part of the mold cavity and fills it with powder material; the swing mechanism is connected to the mold core and drives it to swing back and forth.

[0007] During the process of filling the mold cavity with powder material by the feeding box assembly, the oscillating mechanism drives the mold core to oscillate back and forth. The high-frequency oscillation of the mold core creates a high-frequency vibration effect, which ensures that the powder material fills the mold cavity evenly and avoids material jamming. The final product has a consistent density, which improves the product's accuracy and pass rate and effectively solves the problem of powder flow balance.

[0008] In a further optimized design, the swing mechanism includes a drive component and a linkage assembly; one end of the linkage assembly is connected to the mold core, and the other end is eccentrically connected to the rotation shaft of the drive component. The rotation shaft of the drive component rotates, driving the mold core to swing through the linkage assembly.

[0009] A further optimized design includes a first link and a second link. One end of the first link is eccentrically connected to the rotation shaft of the drive component, and the other end of the first link is rotatably connected to one end of the second link. The other end of the second link is connected to the mold core. The link assembly is formed by the rotatable connection of the first and second links, resulting in a simple structure and convenient and quick installation.

[0010] A further optimized solution includes a mold mounting plate, on which the outer ring of the mold is mounted. Installing the outer ring of the mold via the mold mounting plate facilitates installation.

[0011] In a further optimized design, the feeding box assembly is located on the upper part of the mold mounting plate; the feeding box assembly includes a feeding box, a moving cylinder, a feeding rod, and a feeding cylinder.

[0012] The feeding box is equipped with the feeding rod, and the feeding cylinder is installed on the feeding box and connected to the feeding rod. The feeding cylinder drives the feeding rod to rotate periodically to assist in feeding.

[0013] The movable cylinder is connected to the feeding box, which drives it to move back and forth.

[0014] When the feeding box assembly is feeding material, the moving cylinder moves the feeding box forward to the position directly above the mold cavity. The feeding cylinder drives the feeding rod to rotate periodically so that the powder material falls into the mold cavity more quickly. After feeding is completed, the moving cylinder moves the feeding box backward away from the position above the mold cavity to make room for subsequent actions.

[0015] In a further optimized design, the upper part of the feeding box assembly is equipped with a vibrating feeder and a storage bin. The powder material in the storage bin falls downward into the vibrating feeder, which vibrates the powder material downward to feed it. The vibrating feeder causes the powder material in the storage bin to fall rapidly and evenly downward through vibration and fill the mold cavity.

[0016] A powder product pressing machine, comprising any of the above-described mold core vibration feeding devices for molded powder products.

[0017] Further optimization of the design includes an upper die head, a lower die head, a middle mounting plate, an upper lifting mechanism, and a lower lifting mechanism.

[0018] The upper die head and the lower die head are cylindrical ring structures adapted to the mold cavity, and the lower die head is located at the lower part of the mold cavity;

[0019] The upper lifting mechanism is connected to the upper mold pressing head and drives it to move up and down in the upper space of the mold cavity;

[0020] The middle mounting plate is fixed in place, and the lower mold head is fixed on the middle mounting plate;

[0021] The lower lifting mechanism is located below the swing mechanism and drives the swing mechanism, mold core, mold outer ring and feeding box assembly to move up and down.

[0022] In the initial position, the lower lifting mechanism drives the swing mechanism, mold core, mold outer ring and feeding box assembly to move upward. The mold core, mold outer ring and lower mold head together form a mold cavity. After the mold cavity is filled with powder material, the upper lifting mechanism drives the upper mold head to move downward to contact the powder material in the mold cavity. After moving downward to trigger the pressure point, the pressure is held for a period of time. After the pressure holding is completed, the molded powder product is formed. The upper lifting mechanism and the lower lifting mechanism return respectively, and the formed product is demolded.

[0023] Further optimizations include a lower mounting plate, a mold core base, and connecting columns for the powder product pressing machine.

[0024] The lower mounting plate is located below the middle mounting plate, and the lower lifting mechanism drives the lower mounting plate to move up and down;

[0025] The mold core seat is rotatably mounted on the lower mounting plate, and the connecting post passes through the middle mounting plate to connect the mold core and the mold core seat;

[0026] The swing mechanism is mounted on the lower mounting plate and connected to the mold core seat. The swing mechanism drives the mold core seat to swing, and the connecting column swings synchronously, thereby driving the mold core to swing accordingly.

[0027] Compared with the prior art, the vibration feeding device for molded powder product cores and the powder product pressing machine of this utility model have the following technical advantages:

[0028] 1. The high-frequency back-and-forth oscillation of the mold core creates a high-frequency vibration effect, ensuring that the powder material is evenly filled into the mold cavity, thus avoiding problems such as material jamming and uneven material distribution;

[0029] 2. Automated feeding process reduces manual intervention and improves production efficiency;

[0030] 3. The final molded products have a consistent density, which improves the product's precision and pass rate. Attached Figure Description

[0031] Figure 1 This is a perspective view of a specific embodiment of the mold core vibration feeding device and powder product pressing machine of this utility model;

[0032] Figure 2 yes Figure 1 Main view in the mold-opening state;

[0033] Figure 3 yes Figure 2 The left view;

[0034] Figure 4 yes Figure 1 The front view in the mold-closed state;

[0035] Figure 5 yes Figure 4 The left view;

[0036] Figure 6 yes Figure 1 Front view of the middle mold fixing frame;

[0037] Figure 7 yes Figure 1 A cross-sectional view of the fixed frame of the middle mold in the mold-closed state;

[0038] Figure 8 yes Figure 1 Top view of the swing mechanism;

[0039] Figure 9 yes Figure 8 Sectional view of AA;

[0040] Figure 10 yes Figure 8 BB section view.

[0041] In the diagram: 1. Feeding box assembly, 1a. Moving cylinder, 1b. Feeding rod, 1c. Feeding cylinder, 1d. Mold core, 2. Mold outer ring, 3. Mold cavity, 4. Swinging mechanism, 5. Drive component, 5a. Connecting rod assembly, 5b. First connecting rod, 5c. Second connecting rod, 5d. Mold mounting plate, 6. Vibrating feeder, 7. Storage box, 8. Column, 9. Upper mold pressure head, 10. Lower mold pressure head, 11. Middle mounting plate, 12. Upper lifting mechanism, 13. Lower lifting mechanism, 14. Lower mounting plate, 15. Mold core seat, 16. Connecting column, 17. Guide rail slider mechanism, 18. Pressure bearing, 19. Molded product C. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0043] like Figures 1 to 10 As shown, this invention relates to a specific embodiment of a vibration feeding device for molded powder product cores and a powder product pressing machine.

[0044] like Figure 1 , Figure 2 and Figure 4 As shown, the mold core vibration feeding device for molded powder products in this embodiment includes a feeding box assembly 1, a mold core 2, a mold outer ring 3, and a swing mechanism 5; the mold core 2 is located at the center of the mold outer ring 3, and a mold cavity 4 is formed between the two; the feeding box assembly 1 is located on the upper part of the mold cavity 4 and fills it with powder material; the swing mechanism 5 is connected to the mold core 2 and drives it to swing back and forth.

[0045] During the process of filling the mold cavity with powder material by the feeding box assembly, the oscillating mechanism drives the mold core to oscillate back and forth. The high-frequency oscillation of the mold core creates a high-frequency vibration effect, which ensures that the powder material fills the mold cavity evenly and avoids material jamming. The final product has a consistent density, which improves the product's accuracy and pass rate and effectively solves the problem of powder flow balance.

[0046] like Figures 7 to 10 As shown, the swing mechanism 5 includes a drive component 5a and a connecting rod assembly 5b; one end of the connecting rod assembly 5b is connected to the mold core 2, and the other end is eccentrically connected to the rotation shaft of the drive component 5a. When the rotation shaft of the drive component 5a rotates, it drives the mold core 2 to swing through the connecting rod assembly 5b, wherein the drive component 5a is a pneumatic motor.

[0047] like Figure 8 As shown, the linkage assembly 5b includes a first linkage 5c and a second linkage 5d. One end of the first linkage 5c is eccentrically connected to the rotating shaft of the drive component 5a via a bearing. The other end of the first linkage 5c is rotatably connected to one end of the second linkage 5d, and the other end of the second linkage 5d is fixedly connected to the mold core 2. The linkage assembly 5b is formed by the rotatable connection of the first linkage 5c and the second linkage 5d, which has a simple structure and is convenient and quick to install.

[0048] like Figure 2 As shown, the vibration feeding device for the molded powder product core also includes a mold mounting plate 6, and the outer ring 3 of the mold is mounted on the mold mounting plate 6. The outer ring 3 of the mold is installed through the mold mounting plate 6, which makes installation convenient.

[0049] like Figure 1 and Figure 2 As shown, the feeding box assembly 1 is disposed on the upper part of the mold mounting plate 6; the feeding box assembly 1 includes a feeding box 1a, a moving cylinder 1b, a feeding rod 1c and a feeding cylinder 1d;

[0050] The feeding box 1a is equipped with a feeding rod 1c. The feeding cylinder 1d is installed on the feeding box 1a and connected to the feeding rod 1c. The feeding cylinder 1d drives the feeding rod 1c to rotate periodically to assist in feeding.

[0051] The movable cylinder 1b is connected to the feeding box 1a, which drives the box to move back and forth.

[0052] When the feeding box assembly 1 is feeding material, the moving cylinder 1b moves the feeding box 1a forward to the position directly above the mold cavity 4, and the feeding cylinder 1d drives the feeding rod 1c to rotate periodically so that the powder material falls into the mold cavity 4 more quickly; after the feeding is finished, the moving cylinder 1b moves the feeding box 1a backward away from the position above the mold cavity 4 to make room for subsequent actions.

[0053] like Figure 3 and Figure 5As shown, the upper part of the feeding box assembly 1 is equipped with a vibrating feeder 7 and a storage box 8. The powder material in the storage box 8 falls downward into the vibrating feeder 7, and the vibrating feeder 7 vibrates the powder material to feed it downward. The vibrating feeder 7 causes the powder material in the storage box 8 to fall downward quickly and evenly and fill the mold cavity 4 through vibration.

[0054] This utility model also discloses a powder product pressing machine, including the above-mentioned mold core vibration feeding device for molding powder products.

[0055] like Figure 2 As shown, the powder product pressing machine also includes an upper die pressing head 10, a lower die pressing head 11, a middle mounting plate 12, an upper lifting mechanism 13, and a lower lifting mechanism 14;

[0056] The upper die head 10 and the lower die head 11 are cylindrical ring structures adapted to the mold cavity 4, with the lower die head 11 located at the lower part of the mold cavity 4;

[0057] The lifting mechanism 13 is connected to the upper mold head 10 and drives it to move up and down in the upper space of the mold cavity 4. The lifting mechanism 13 drives the upper mold head 10 to move up and down along the guide rail slider mechanism 18.

[0058] The middle mounting plate 12 is fixed in place, and the lower mold pressing head 11 is fixed on the middle mounting plate 12;

[0059] The lower lifting mechanism 14 is located below the swing mechanism 5 and drives the swing mechanism 5, mold core 2, mold outer ring 3 and feeding box assembly 1 to move up and down;

[0060] Among them, the upper lifting mechanism 13 and the lower lifting mechanism 14 are hydraulic cylinders.

[0061] In the initial position, the lower lifting mechanism 14 drives the swing mechanism 5, mold core 2, mold outer ring 3 and feeding box assembly 1 to move upward. The mold core 2, mold outer ring 3 and lower mold pressure head 11 together form a mold cavity 4. After filling the mold cavity 4 with powder material, the upper lifting mechanism 13 drives the upper mold pressure head 10 to move downward to contact the powder material in the mold cavity 4. After continuing to move downward to trigger the pressure point, the pressure is held for a period of time. After the pressure holding is completed, the molded powder product is formed. The upper lifting mechanism 13 and the lower lifting mechanism 14 return respectively, and the formed product is demolded.

[0062] like Figure 7 As shown, the molded product C is cylindrical and ring-shaped. The powder material is high-performance plastic (PTFE) combined with binders, etc., and it is mainly used to produce high-performance seals, precision plastic bearings, etc.

[0063] like Figure 4 and Figure 6 As shown, the powder product pressing machine also includes a lower mounting plate 15, a mold core seat 16, and a connecting column 17;

[0064] The lower mounting plate 15 is located below the middle mounting plate 12, and the lower lifting mechanism 14 drives the lower mounting plate 15 to move up and down.

[0065] like Figure 9 As shown, the mold core holder 16 is rotatably mounted on the lower mounting plate 15 via a pressure bearing 19, as... Figure 4 As shown, the connecting column 17 passes through the mounting plate 12 to connect the mold core 2 to the mold core seat 16;

[0066] The swing mechanism 5 is mounted on the lower mounting plate 15 and connected to the mold core seat 16. The swing mechanism 5 drives the mold core seat 16 to swing, and the connecting column 17 swings synchronously, thereby driving the mold core 2 to swing accordingly.

[0067] like Figure 6 and Figure 7 As shown, the mold mounting plate 6 and the lower mounting plate 15 are connected as one unit by four columns 9, which pass through the middle mounting plate 12. During the lifting process of the lower lifting mechanism 14, the mold mounting plate 6 and the lower mounting plate 15 are linked, that is, they move simultaneously.

[0068] This powder product pressing machine has the following two working modes:

[0069] The action process for working mode one is as follows:

[0070] 1. Press the start button with all components in their original state;

[0071] 2. Lower cylinder rises (speed and position adjustable);

[0072] 3. Once the lower hydraulic cylinder reaches its designated position, the material feeding process begins, and the material feeding box moves forward to a position directly above the mold cavity to add material.

[0073] 4. After feeding is complete, the feeding box moves back to its original position;

[0074] 5. The upper hydraulic cylinder moves downward (speed adjustable);

[0075] 6. The upper die head contacts the powder material inside the die cavity, triggering the pressure point and starting the pump to maintain pressure;

[0076] 7. Pressure holding ends, product is formed;

[0077] 8. The upper and lower oil cylinders return, and the demolding is completed (the upper and lower oil cylinders can be set to return simultaneously or individually in sequence, and the speed and position are adjustable).

[0078] The action process for working mode two is as follows:

[0079] 1. Press the start button with all components in their original state;

[0080] 2. Lower cylinder rises (speed and position adjustable);

[0081] 3. Once the lower hydraulic cylinder reaches its designated position, the material feeding process begins, and the material feeding box moves forward to a position directly above the mold cavity to add material.

[0082] 4. After feeding is complete, the feeding box moves back to its original position;

[0083] 5. The upper hydraulic cylinder moves downward (speed adjustable);

[0084] 6. Floating: After the upper cylinder descends to a certain position, the lower cylinder and the upper cylinder descend synchronously to another position (ensuring that the speeds of the upper and lower cylinders are synchronized).

[0085] 7. The lower hydraulic cylinder stops moving, the upper hydraulic cylinder moves downward, triggering the pressure point, and the pump starts to maintain pressure;

[0086] 8. Pressure holding ends, product is formed;

[0087] 9. The upper and lower oil cylinders return, and the demolding is completed (the upper and lower oil cylinders can be set to return simultaneously or individually in sequence, and the speed and position are adjustable).

[0088] This mold core vibration feeding device and powder product pressing machine achieves high-frequency back-and-forth oscillation of the mold core through an automated transmission structure, resulting in a high-frequency vibration effect. The powder material is evenly filled into the mold cavity, avoiding material jamming. The final product has a consistent density, improving product accuracy and pass rate, and effectively solving the problem of powder flow balance.

[0089] In summary, as described in the specification and figures, this utility model has been manufactured into actual samples and subjected to multiple use tests. The test results demonstrate that this utility model achieves its intended purpose, and its practicality is beyond doubt. The embodiments described above are merely for illustrative purposes and are not intended to limit the scope of this utility model. Any equivalent embodiments made by those with common knowledge in the relevant technical field, utilizing the technical content disclosed in this utility model, without departing from the scope of the technical features and similar features disclosed in this utility model, are all within the protection scope of this utility model.

Claims

1. A vibration feeding device for molded powder product cores, characterized in that: It includes a feeding box assembly (1), a mold core (2), a mold outer ring (3) and a swing mechanism (5); the mold core (2) is located at the center of the mold outer ring (3), and a mold cavity (4) is formed between the two; the feeding box assembly (1) is located on the upper part of the mold cavity (4) and fills it with powder material; the swing mechanism (5) is connected to the mold core (2) and drives it to swing back and forth.

2. The vibration feeding device for molded powder product cores according to claim 1, characterized in that, The swing mechanism (5) includes a drive component (5a) and a connecting rod assembly (5b); one end of the connecting rod assembly (5b) is connected to the mold core (2), and the other end is eccentrically connected to the rotation shaft of the drive component (5a).

3. The vibration feeding device for molded powder product cores according to claim 2, characterized in that, The link assembly (5b) includes a first link (5c) and a second link (5d). One end of the first link (5c) is eccentrically connected to the rotation shaft of the drive component (5a), and the other end of the first link (5c) is rotatably connected to one end of the second link (5d). The other end of the second link (5d) is connected to the mold core (2).

4. The vibration feeding device for molded powder product cores according to claim 1, characterized in that, It also includes a mold mounting plate (6), on which the outer ring (3) of the mold is disposed.

5. The vibration feeding device for molded powder product cores according to claim 4, characterized in that, The feeding box assembly (1) is located on the upper part of the mold mounting plate (6); the feeding box assembly (1) includes a feeding box (1a), a moving cylinder (1b), a feeding rod (1c) and a feeding cylinder (1d); The feeding box (1a) is equipped with the feeding rod (1c), and the feeding cylinder (1d) is installed on the feeding box (1a) and connected to the feeding rod (1c). The feeding cylinder (1d) drives the feeding rod (1c) to rotate periodically to assist in feeding. The movable cylinder (1b) is connected to the feeding box (1a) and drives it to move back and forth.

6. The vibration feeding device for molded powder product cores according to claim 1, characterized in that, The upper part of the feeding box assembly (1) is provided with a vibrating feeder (7) and a storage box (8). The powder material in the storage box (8) falls downward into the vibrating feeder (7), and the vibrating feeder (7) vibrates the powder material downward to feed it.

7. A powder product pressing machine, characterized in that: The device includes the vibration feeding device for molded powder product cores as described in any one of claims 1 to 6.

8. The powder product pressing machine according to claim 7, characterized in that, It also includes an upper die head (10), a lower die head (11), a middle mounting plate (12), an upper lifting mechanism (13), and a lower lifting mechanism (14). The upper die head (10) and the lower die head (11) are cylindrical ring structures adapted to the mold cavity (4), and the lower die head (11) is located at the lower part of the mold cavity (4); The upper lifting mechanism (13) is connected to the upper mold pressing head (10) and drives it to move up and down in the upper space of the mold cavity (4); The middle mounting plate (12) is fixed in place, and the lower die pressing head (11) is fixed on the middle mounting plate (12); The lower lifting mechanism (14) is located below the swing mechanism (5) and drives the swing mechanism (5), mold core (2), mold outer ring (3) and feeding box assembly (1) to move up and down.

9. The powder product pressing machine according to claim 8, characterized in that, It also includes a lower mounting plate (15), a mold core base (16), and a connecting column (17); The lower mounting plate (15) is located below the middle mounting plate (12), and the lower lifting mechanism (14) drives the lower mounting plate (15) to move up and down; The mold core seat (16) is rotatably mounted on the lower mounting plate (15), and the connecting column (17) passes through the middle mounting plate (12) to connect the mold core (2) and the mold core seat (16); The swing mechanism (5) is mounted on the lower mounting plate (15) and connected to the mold core seat (16). The swing mechanism (5) drives the mold core seat (16) to swing, and the connecting column (17) swings synchronously, thereby driving the mold core (2) to swing accordingly.

Images