Ultramicro grinding machine for metal powder metallurgy

Abstract

The utility model discloses a metal powder metallurgy ultramicro grinding machine which comprises a grinding machine set, a vibration feeding disc and a crushing swing set. A vertical frame is fixedly installed on the top face of the grinding unit, and a feeding port of the grinding unit is connected with the bottom face of the vibration feeding disc through a flexible communicating pipe. The vibration feeding disc comprises a fixed ring base, a flexible connecting ring and a floating cylinder, the floating cylinder is movably connected with the ball sleeve base through a supporting frame, a vibration motor is installed on the side wall of the floating cylinder, and the vibration motor drives the floating cylinder to generate vibration. And the crushing swing group comprises a branch guide cap, a ball swing rod and a valve ball. According to the device, through the synergistic effect of vibration and crushing, the feeding uniformity and the crushing stability are improved, and the device has the advantages of being continuous in feeding, high in crushing efficiency, good in anti-blocking effect and the like.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine feeding technology, specifically a metal powder metallurgy ultra-micro grinding machine. Background Technology

[0002] In the field of metal powder metallurgy, to meet the requirements of different products regarding the particle size, shape, and uniformity of metal powder distribution, it is usually necessary to finely grind and sieve the raw metal powder. However, existing metal powder grinding equipment has the following technical problems:

[0003] Uneven feeding: Traditional grinding equipment usually uses gravity or mechanical feeding, which is prone to discontinuous feeding or unstable feeding speed, resulting in uneven grinding effect, large energy loss, low grinding efficiency and unstable output.

[0004] Low crushing efficiency: When processing lumpy or agglomerated powder, the existing equipment has limited crushing capacity, making it difficult to effectively crush coarse particles and affecting the final quality of the product.

[0005] Severe blockage: Due to limitations in the feeding method and equipment structure, powder tends to accumulate in pipes or equipment during the flow and crushing process, forming blockages and affecting the continuous operation of the equipment.

[0006] Therefore, existing technologies suffer from problems such as discontinuous material feeding, poor crushing effect, easy clogging, and low grinding efficiency, which limit the application of metal powder metallurgy equipment in the field of ultra-fine processing. This paper studies and improves upon these existing problems to provide a metal powder metallurgy ultra-fine grinding machine, aiming to solve the current issues and enhance its practical value. Utility Model Content

[0007] The purpose of this invention is to solve the problems of discontinuous feeding, poor crushing effect, easy clogging and low grinding efficiency in the existing technology, and to provide a metal powder metallurgy ultrafine grinding mill. By optimizing the vibration feeding structure and crushing mechanism, the mill improves the uniformity of feeding and crushing efficiency, reduces clogging and improves grinding efficiency.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A metal powder metallurgy ultrafine grinding mill includes: a grinding mill unit, a vibrating feeding plate, and a crushing pendulum group.

[0010] The grinding unit has a fixed frame installed on its top surface, and the feed inlet on the top surface of the grinding unit is connected to a flexible connecting pipe. The vibrating feeding plate includes a fixed ring seat, a flexible connecting ring and a floating cylinder connected in sequence, as well as a vibrating motor fixed to one side of the floating cylinder.

[0011] Several supports are fixedly installed on the inner side of the floating cylinder, and one end of each support is connected to a ball sleeve seat located at the axis of the fixed ring seat.

[0012] The crushing pendulum assembly includes a guide cap, a ball pendulum rod, and a valve ball connected in sequence.

[0013] The floating cylinder is movably sleeved inside the ball sleeve seat. The top end of the flexible connecting pipe is fixedly connected to the bottom surface of the floating cylinder. The bottom surface of the valve ball is spherical and faces the port of the flexible connecting pipe. A gap for material powder to pass through is provided between the bottom surface of the floating cylinder and the top end of the flexible connecting pipe.

[0014] In a preferred example, a flexible suspension rod is fixedly mounted on the surface of the support frame, and the other end of the flexible suspension rod is fixedly connected to the surface of the floating cylinder.

[0015] In a preferred example, the flexible rod, flexible connecting ring, and flexible connecting pipe are made of flexible rubber, and the upper and lower ends of the flexible connecting ring are respectively sealed to the bottom surface of the fixed ring seat and the top surface of the floating cylinder.

[0016] In a preferred example, the top surface of the guide cap has a conical structure, which is used to guide the powder to slide down the inner wall of the floating cylinder during vibration and oscillation.

[0017] In a preferred embodiment, the surface of the ball pendulum rod is provided with a ball block that fits inside the ball sleeve seat, and the ball sleeve seat is spherically fitted onto the surface of the ball pendulum rod.

[0018] In a preferred example, the valve ball is a counterweight ball structure, which, through the large mass suspension effect, makes its vibration frequency lower than that of the floating cylinder, thus forming a combined vibration and resonance breaking effect.

[0019] Compared with the prior art, this utility model has the following advantages:

[0020] Improved material feeding uniformity: By setting up a vibrating feeding plate and a flexible connection structure, the material feeding is ensured to be uniform, eliminating the problem of unstable crushing and grinding caused by discontinuous feeding.

[0021] Improved crushing efficiency: The combination of ball-operated swing arm and valve ball creates a combined vibration and crushing effect, enhancing the crushing capacity of coarse particles and resulting in more uniform particle size of the final output metal powder.

[0022] Enhanced anti-clogging effect: By adjusting the gravity flow state of the inner wall of the floating cylinder and the gap of the flexible connecting pipe, the accumulation and blockage of materials during conveying and grinding are prevented.

[0023] Enhanced resonance and crushing effect: The combined vibration of the valve ball and the floating cylinder creates a composite vibration and resonance effect, improving the equipment's grinding capacity and crushing efficiency.

[0024] Improved equipment stability: The support and constraint of the struts and ball bearings ensure that the equipment maintains structural stability under high-frequency vibration, thus extending the service life of the equipment.

[0025] This invention improves the uniformity of metal powder feeding, crushing efficiency, and screening effect by optimizing the feeding structure and crushing mechanism, avoiding equipment failures caused by blockage and uneven feeding. It is applicable to the fine grinding and metallurgical processing of various types of metal powders. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0027] Figure 2 This is a schematic diagram of the structure of a vibrating feeding disc according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the cross-sectional structure of the vibrating feeding disc according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of a crushing pendulum assembly structure according to an embodiment of the present invention.

[0030] Figure label:

[0031] 100. Grinding unit; 110. Frame; 111. Flexible hanger; 120. Flexible connecting pipe;

[0032] 200. Vibrating feeding plate; 210. Fixed ring seat; 220. Flexible connecting ring; 230. Floating cylinder; 240. Vibrating motor; 231. Support frame; 232. Ball sleeve seat;

[0033] 300. Crushing pendulum assembly; 310. Guide cap; 320. Ball pendulum rod; 330. Valve ball. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0035] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0036] The following is in conjunction with the appendix Figures 1-4This invention describes a metal powder metallurgy ultrafine grinding machine provided by some embodiments of the present invention.

[0037] This utility model provides a metal powder metallurgy ultrafine grinding machine, specifically including: a grinding unit 100, a vibrating feeding plate 200, and a crushing pendulum group 300.

[0038] The grinding unit 100 is an integral frame structure, with a support frame 110 fixedly installed on its top.

[0039] The support frame 110 is made of metal and serves a supporting and stabilizing function. The grinding unit 100 includes a flexible connecting structure, which, through its structural connection with the vibrating feed pan 200, enables continuous grinding of powdered materials. A flexible connecting pipe 120 is connected to the top of the grinding unit 100 to guide the material output from the vibrating feed pan 200 into the grinding unit 100. The flexible connecting pipe 120 is made of wear-resistant rubber, capable of adapting to vibration and displacement changes, ensuring stable material transport. The flexible connecting pipe 120 is fixedly connected to the feed inlet at the top of the grinding unit 100 via a flange to ensure sealing.

[0040] The vibrating feeding plate 200 includes: a fixed ring seat 210, a flexible connecting ring 220 and a floating cylinder 230, and a vibrating motor 240 disposed on one side of the floating cylinder 230.

[0041] Fixed ring seat 210: Located at the top of the vibrating feeding plate 200, made of metal material, and capable of withstanding the impact force generated by vibration;

[0042] Flexible connecting ring 220: Made of rubber material, it is connected to the fixed ring seat 210 and floating cylinder 230 by bolts to form a buffer structure and reduce stress concentration caused by vibration; Floating cylinder 230: It is cylindrical with a hollow internal structure. Its inner wall is connected to the crushing pendulum group 300 through a guide mechanism to guide and transport materials.

[0043] The vibratory motor 240 is located outside the floating cylinder 230 and is connected by a flange or bolts. When the vibratory motor 240 is powered on, it generates high-frequency vibration through asymmetrical rotation, which drives the floating cylinder 230 to vibrate inside the vibratory feeding plate 200, forming a stable material conveying environment.

[0044] The crushing pendulum assembly 300 includes: a guide cap 310, a ball pendulum rod 320, and a valve ball 330.

[0045] Distributor cap 310: Conical in shape, located at the top center inside the floating cylinder 230. Through its connection with the floating cylinder 230, the distributor cap 310 evenly distributes the falling powder material onto the inner wall of the floating cylinder 230, preventing material accumulation.

[0046] Ball-shaped pendulum 320: A hollow rod-shaped structure arranged symmetrically along an axis. The ball-shaped pendulum 320 is movably connected to the inner wall of the floating cylinder 230 via a ball sleeve seat 232, enabling it to oscillate laterally under vibration and external force. The ball-shaped pendulum 320 uses this oscillation action to screen and crush materials.

[0047] Valve ball 330: A spherical structure made of high-hardness metal material. Under the action of the ball swing rod 320, the valve ball 330 undergoes crushing due to its own weight and oscillation. When powdered material passes through the gap at the bottom of the valve ball 330, it is crushed into smaller particles due to the spherical pressure of the valve ball 330.

[0048] The inner side of the floating cylinder 230 is provided with several supports 231, which are fixedly connected to the floating cylinder 230 via flanges. One end of the support 231 is movably connected to a ball sleeve seat 232 located at the axis of the fixed ring seat 210, forming a support and constraint mechanism. The ball sleeve seat 232 has a spherical structure and is made of wear-resistant alloy material, which can maintain the stability of the swing direction during vibration.

[0049] Working principle and usage process of this utility model:

[0050] This utility model provides a metal powder metallurgy ultra-micro grinding machine, which uses a vibrating feeding plate 200 for vibrating feeding. The vibrating feeding method is used to slowly and continuously feed the material, ensuring continuous and uniform feeding of the ultra-micro grinding machine.

[0051] Feeding stage: In operation, material is fed into the vibrating feeding plate 200. After the vibrating motor 240 is powered on, it vibrates, causing the floating cylinder 230 to vibrate at high frequency. The floating cylinder 230 drives the ball swing rod 320 to swing inside the vibrating feeding plate 200 through the support between the support frame 231 and the ball sleeve seat 232.

[0052] Crushing Stage: During vibration, the guide cap 310 guides the material along the inner wall of the floating cylinder 230, forming a uniform downward flow. When the material passes through the gap between the ball swing rod 320 and the valve ball 330, the size of the gap allows for the screening of coarse particles and the passage of fine particles. The valve ball 330 has a spherical structure, which crushes coarse particles during the swinging process, pulverizing lumps of material into small particles before they pass through the gap, ensuring that the material can be fed into the grinding unit 100 evenly and at a constant speed.

[0053] Vibration and Anti-clogging Stage: While the vibrating motor 240 drives the floating cylinder 230 to vibrate, the ball swing rod 320 vibrates and oscillates under the constraint of the ball sleeve seat 232, forming a combined vibration effect. During vibration, the material forms a gravity flow state on the inner wall of the floating cylinder 230, preventing blockage during the descent. The gap between the top of the flexible connecting pipe 120 and the bottom surface of the floating cylinder 230 is set to an optimized size to ensure smooth material passage while preventing blockage caused by excessively large particle size.

[0054] Synergistic effect of vibration and crushing: During the vibration of the vibrating feed pan 200, the guide cap 310 and the ball swing rod 320 guide and grind the material during vibration. The valve ball 330 crushes coarse particles through its own weight and vibration, further improving the uniformity and fineness of the material. The vibration frequency is automatically adjusted by the counterweight effect of the valve ball 330, making its vibration frequency lower than that of the floating cylinder 230, thus creating a resonant crushing and screening effect.

[0055] Output and Anti-clogging Effect: Through the synergistic effect of the above-mentioned composite vibrating screening and grinding crushing, the final material is output to the grinding unit 100 through the flexible connecting pipe 120. The flexible structure and anti-clogging design ensure the continuity and stability of the entire grinding process, preventing material accumulation and channel blockage.

[0056] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the 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.

[0057] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A metal powder metallurgical ultra-micro grinder, characterized by, The utility model relates to a kind of powder feeding device, including: grinder group (100), vibrating feeding tray (200) and broken swing group (300), the top surface of the grinder group (100) is fixedly installed with stand (110) and the top surface feed inlet of the grinder group (100) is connected with flexible communication pipe (120), the vibrating feeding tray (200) includes sequentially connected fixed ring seat (210), flexible connection ring (220) and floating cylinder (230) and vibrating motor (240) fixed to one side of the floating cylinder (230), the inside of the floating cylinder (230) is fixedly installed with several support frames (231), and one end of several support frames (231) is connected with ball sleeve seat (232) located the axis of the fixed ring seat (210), the broken swing group (300) includes sequentially connected sub-guide cap (310), ball swing rod (320) and valve ball (330), the floating cylinder (230) is movably sleeved in the inside of the ball sleeve seat (232), the top end of the flexible communication pipe (120) is fixedly connected with the bottom surface of the floating cylinder (230), the bottom surface of the valve ball (330) is spherical and is opposite the port of the flexible communication pipe (120), and gap for powder passing is provided between the bottom surface of the floating cylinder (230) and the top end of the flexible communication pipe (120). The surface of the stand (110) is fixedly installed with flexible boom (111), and the other end of the flexible boom (111) is fixedly connected with the surface of the floating cylinder (230).

2. A metal powder metallurgical ultra-micro grinder according to claim 1, characterized in that, The flexible boom (111), flexible connection ring (220) and flexible communication pipe (120) are flexible rubber material components, and the upper and lower ends of the flexible connection ring (220) are respectively sealingly connected with the bottom surface of the fixed ring seat (210) and the top surface of the floating cylinder (230).

3. A metal powder metallurgical ultra-micro grinder according to claim 2, characterized in that, The top surface of the sub-guide cap (310) is conical structure, for guiding powder to slide along the inner wall of the floating cylinder (230) in vibrating swing.

4. The metal powder metallurgical ultra-micro grinder according to claim 1, characterized in that, The surface of the ball swing rod (320) is provided with ball block sleeved in the inside of the ball sleeve seat (232), and the ball sleeve seat (232) is spherical sleeve sleeved on the surface of the ball swing rod (320).

5. The metal powder metallurgical ultra-micro grinder according to claim 1, characterized in that, The valve ball (330) is counterweight ball block structure, and the vibration frequency thereof is lower than the vibration frequency of the floating cylinder (230) by large mass suspension effect.

6. The metal powder metallurgical ultra-micro grinder according to claim 1, characterized in that, ​

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