CN222641781U - A mixing device for preventing powder segregation - Google Patents

Abstract

The utility model relates to a powder segregation preventing mixing device which comprises a mixing barrel, wherein a discharging pipe is arranged at the bottom of the mixing barrel, a stirring mechanism for stirring powder is arranged in the mixing barrel, a diamond-shaped blocking block for blocking the discharging pipe is arranged in the mixing barrel, the outer end diameter of the diamond-shaped blocking block is larger than the inner diameter of the discharging pipe, a vertical connecting rod is fixedly connected to the bottom of the diamond-shaped blocking block, the lower end of the connecting rod extends to the outside of the discharging pipe, and a driving mechanism for driving the diamond-shaped blocking block to move up and down is arranged on the mixing barrel. According to the utility model, the diamond-shaped blocking blocks are arranged in the mixing cylinder, so that powder above the diamond-shaped blocking blocks is dispersed to the periphery by blocking the diamond-shaped blocking blocks when the mixing cylinder is used for discharging, and light-weight powder is uniformly distributed on the periphery and is discharged along the bottom wall of the mixing cylinder, so that segregation phenomenon of powder in the discharging process is avoided.

Description

Prevent powder segregation's compounding device

Technical Field

The utility model relates to the technical field of powder metallurgy, in particular to a mixing device for preventing powder segregation.

Background

Powder metallurgy is a process technique for producing metal powders or producing metal materials, composite materials, and various types of articles from metal powders (or a mixture of metal powders and non-metal powders) as a raw material by forming and sintering.

The preparation of finished powder needs to be mixed through the blendor and technological process is carried out, and when current blendor is carrying out the blowing, the powder of barrel central point puts first-in bag extremely easily appears because of gravity factor, goes into the phenomenon of bag behind the powder all around, and extremely easily takes place light powder wall built-up on the blendor inner bottom wall, finally leads to the finished product to appear segregation phenomenon. And moisture in the powder can increase the generation of wall built-up phenomenon, so that the powder needs to be ensured to be dried during mixing, and the powder needs to be dried before being added, so that the process is complicated.

Disclosure of utility model

The utility model aims at the defects of the prior art, provides a powder segregation preventing mixing device, and solves the problems.

The utility model is realized by the following technical scheme that the powder segregation preventing mixing device comprises a mixing barrel, wherein a discharging pipe is arranged at the bottom of the mixing barrel, a stirring mechanism for stirring powder is arranged in the mixing barrel, a diamond-shaped blocking block for blocking the discharging pipe is arranged in the mixing barrel, the outer end diameter of the diamond-shaped blocking block is larger than the inner diameter of the discharging pipe, and a driving mechanism for driving the diamond-shaped blocking block to move up and down is arranged on the mixing barrel.

According to the scheme, the diamond-shaped blocking blocks are arranged in the mixing barrel, when the mixing barrel is used for discharging, powder above the diamond-shaped blocking blocks is dispersed all around, light-weight powder is uniformly distributed all around and is discharged along the bottom wall of the mixing barrel, and segregation phenomenon of powder in the discharging process is avoided.

As optimization, actuating mechanism is the flexible jar of vertical setting, and diamond sprue bottom rigid coupling has vertical connecting rod, and the lower extreme of connecting rod extends to the discharging outside of tubes, and the one end and the compounding section of thick bamboo of flexible jar are connected, and the other end and the connecting rod of flexible pipe are connected. According to the optimization scheme, the connecting rod is driven to move through the expansion of the expansion cylinder, so that the diamond-shaped blocking block is driven to move up and down to control discharging.

As optimization, the discharging pipe sleeve is provided with a collecting pipe, the lower end of the connecting rod extends into the collecting pipe and is fixedly connected with the inner wall of the collecting pipe, and the other end of the telescopic cylinder is fixedly connected with the collecting pipe. According to the optimization scheme, powder is more concentrated during discharging from the discharging pipe through the collecting pipe, and charging is facilitated.

As optimization, the stirring mechanism comprises a driving motor fixed at the top of the mixing barrel, the output end of the driving motor stretches into the mixing barrel and is fixedly connected with a rotating shaft, and a plurality of stirring rods are distributed on two sides of the rotating shaft.

As optimization, the inner bottom of the mixing cylinder is provided with a scraping plate in a fitting mode, and the scraping plate is fixedly connected with a stirring rod. When this optimization scheme unloading, scrape the powder through the scraper blade on to the inner bottom wall and sweep, avoid powder wall built-up.

As optimization, the heating coil is surrounded on the outer wall of the mixing cylinder. This optimization scheme is through heating coil to the heating stoving in the compounding section of thick bamboo, to powder drying, reduces the production of powder wall built-up, reduces the operation process, convenient to use.

As optimization, the outer wall of the mixing cylinder is wrapped with an insulating layer, and the heating coil is located in the insulating layer. This optimizing scheme keeps warm and improves stoving effect.

As optimization, the compounding section of thick bamboo top is equipped with two at least feeder hoppers, installs the motorised valve on the unloading pipe of feeder hopper. According to the optimized scheme, the feeding amount of powder is controlled through the electric valve, so that powder proportioning and mixing are facilitated.

The utility model has the beneficial effects that the mixing cylinder is heated by the electric heating pipe, so that powder can be directly dried, the drying process before mixing is reduced, and the production efficiency is improved. Through setting up diamond-shaped blocking in the compounding section of thick bamboo, when the compounding section of thick bamboo unloading, through the blockking of diamond-shaped blocking, make the powder of diamond-shaped blocking top disperse all around, light weight powder evenly distributed all around and along compounding section of thick bamboo diapire unloading, scrape the powder through the scraper blade on the diapire when unloading, prevent powder wall built-up, avoided unloading in-process powder to appear segregation phenomenon.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model (schematic view of the closed state of the diamond-shaped block);

FIG. 3 is a schematic diagram of a diamond-shaped block open state;

FIG. 4 is a diamond shaped block a schematic three-dimensional structure;

The figure shows:

1. Mixing drum 2, rabbling mechanism, 21, driving motor, 22, pivot, 23, puddler, 24, scraper blade, 3, diamond-shaped blocking, 4, connecting rod, 5, collecting pipe, 6, telescopic cylinder, 7, heating coil, 8, heat preservation, 9, motorised valve, 10, feeder hopper, 11, discharging pipe.

Detailed Description

In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.

As shown in fig. 1-4, a powder segregation prevention mixing device comprises a mixing barrel 1, wherein the mixing barrel is fixed on the ground through supporting legs, a discharging pipe 11 is arranged at the bottom of the mixing barrel 1, at least two feeding hoppers 10 are arranged at the top of the mixing barrel 1, and different powder materials are conveniently placed for mixing. The unloading pipe of feeder hopper 10 bottom and compounding section of thick bamboo 1 inner chamber intercommunication set up, install the motorised valve on the unloading pipe of feeder hopper 10.

The heating coil 7 is surrounded on the outer wall of the mixing drum 1, the heating coil 7 is fixed on the outer wall of the mixing drum 1, and the heating mode of the heating coil 7 in this embodiment is electric heating, which is a conventional technology, and is not repeated. The outer wall cladding of compounding section of thick bamboo 1 has heat preservation 8, heating coil 7 is located heat preservation 8, reduces thermal dissipation.

A stirring mechanism 2 for stirring powder is arranged in the mixing cylinder 1. Specifically, the stirring mechanism 2 comprises a driving motor 21 fixed at the top of the mixing barrel 1, the output end of the driving motor 21 stretches into the mixing barrel 1 and is fixedly connected with a vertical rotating shaft 22, and a plurality of stirring rods 23 are symmetrically distributed on two sides of the rotating shaft 22.

The stirring rod 23 in this embodiment is disposed obliquely downward in a lateral direction, and a plurality of stirring rods 23 are distributed on the same side of the rotating shaft 22 along the length direction. The inner bottom of the mixing cylinder 1 is provided with a scraping plate 24 in a fitting mode, the scraping plate 24 is fixedly connected with a stirring rod 23 at the lowest position, powder on the inner bottom wall is scraped through the scraping plate, and powder wall hanging is avoided.

The diamond-shaped blocking blocks 3 for blocking the discharging pipe 11 are arranged in the mixing barrel 1, the outer end diameters of the diamond-shaped blocking blocks 3 are larger than the inner diameter of the discharging pipe 11, and the upper outer surface and the lower outer surface of the diamond-shaped blocking blocks 3 are conical, so that powder can slide down conveniently. The mixing cylinder 1 is provided with a driving mechanism for driving the diamond-shaped blocking block to move up and down.

Specifically, actuating mechanism is the flexible jar 6 of vertical setting, and rhombus sprue bottom rigid coupling has vertical connecting rod 4, and the lower extreme of connecting rod 4 extends to the outside of discharging pipe 11, and the one end and the compounding section of thick bamboo 1 of flexible jar 6 are connected, and the other end and the connecting rod 4 of flexible pipe are connected.

In this embodiment, the discharge pipe 11 is sleeved with the collecting pipe 5, and the inner diameter of the collecting pipe 5 is adapted to the outer diameter of the discharge pipe 11. The lower end of the connecting rod 4 extends downwards into the collecting pipe 5 and is fixedly connected with the inner wall of the collecting pipe 5, and the other end of the telescopic cylinder 6 is fixedly connected with the collecting pipe 5.

The left and right sides rigid coupling of discharging pipe 11 of this embodiment compounding section of thick bamboo has horizontal first fixed plate, and the left and right sides rigid coupling of collecting pipe 5 has horizontal second fixed plate, flexible jar 6 is provided with two, flexible jar 6 one end and first fixed plate rigid coupling, flexible jar 6 other end and second fixed plate rigid coupling to the up-and-down motion of drive collecting pipe 5.

The working principle is that powder to be mixed is placed in a feed hopper 10, an electric valve 9 is opened, the powder enters a mixing cylinder 1 for stirring, and the powder is dried through a heating coil 7, so that the powder is kept dry, and the occurrence of wall hanging is reduced. After stirring and mixing through the stirring mechanism 2, the telescopic cylinder 6 contracts and drives the collecting pipe 5 to move upwards, thereby drive the upward movement of the diamond-shaped blocking block 3 and open the discharging pipe 11 for discharging, the powder above the diamond-shaped blocking block is dispersed to the periphery through the blocking of the diamond-shaped blocking block 3, the light weight powder is uniformly distributed around and along the bottom wall of the mixing cylinder 1 for discharging, simultaneously, the stirring rod 23 drives the scraping plate 24 to rotate to scrape the powder on the inner bottom wall of the mixing cylinder 1, powder wall hanging is prevented, and segregation phenomenon of powder in the discharging process is avoided

It should be understood that the foregoing embodiments and the accompanying drawings are only for illustrating the technical aspects of the present utility model, but not for limiting the present utility model, and that the present utility model is not limited to the preferred embodiments, and that the changes, modifications, additions or substitutions made by those skilled in the art within the spirit and scope of the present utility model will not depart from the spirit and scope of the present utility model as defined in the appended claims.

Claims (8)

1. The mixing device for preventing powder segregation comprises a mixing barrel (1), wherein a discharging pipe (11) is arranged at the bottom of the mixing barrel (1), and a stirring mechanism (2) for stirring powder is arranged in the mixing barrel (1), and the mixing device is characterized in that a diamond-shaped blocking block (3) for blocking the discharging pipe (11) is arranged in the mixing barrel (1), the outer end diameter of the diamond-shaped blocking block is larger than the inner diameter of the discharging pipe, and a driving mechanism for driving the diamond-shaped blocking block to move up and down is arranged on the mixing barrel (1).

2. The powder segregation preventing mixing device according to claim 1, wherein the driving mechanism is a vertically arranged telescopic cylinder (6), a vertical connecting rod (4) is fixedly connected to the bottom of the diamond-shaped blocking block (3), the lower end of the connecting rod extends to the outside of the discharging pipe (11), one end of the telescopic cylinder is connected with the mixing cylinder (1), and the other end of the telescopic pipe is connected with the connecting rod (4).

3. The powder segregation preventing mixing device according to claim 2, wherein the discharging pipe (11) is sleeved with a collecting pipe (5), the lower end of the connecting rod (4) extends into the collecting pipe (5) and is fixedly connected with the inner wall of the collecting pipe, and the other end of the telescopic cylinder (6) is fixedly connected with the collecting pipe (5).

4. The powder segregation preventing mixing device according to claim 1, wherein the stirring mechanism (2) comprises a driving motor (21) fixed at the top of the mixing barrel, the output end of the driving motor extends into the mixing barrel and is fixedly connected with a rotating shaft (22), and a plurality of stirring rods (23) are distributed on two sides of the rotating shaft.

5. A powder segregation preventing mixing device according to claim 4, wherein the inner bottom of the mixing cylinder (1) is provided with a scraping plate (24) in a fitting manner, and the scraping plate is fixedly connected with a stirring rod (23).

6. A powder segregation preventing mixing device according to claim 1, wherein the outer wall of the mixing cylinder (1) is surrounded by a heating coil (7).

7. A powder segregation preventing mixing device according to claim 6, wherein the outer wall of the mixing cylinder (1) is wrapped with an insulation layer (8), and the heating coil (7) is positioned in the insulation layer.

8. A powder segregation preventing mixing device according to claim 1 is characterized in that at least two feeding hoppers (10) are arranged at the top of the mixing barrel (1), and an electric valve (9) is arranged on a discharging pipe of each feeding hopper.