Powder grinding machine

Abstract

The utility model provides a pulverizing machine which comprises a tank body, a rotating shaft penetrating through the top of the tank body and coaxially extending into the tank body, a driving mechanism in transmission connection with the top of the rotating shaft, and a feeding hopper arranged at the top of the tank body and communicated with the interior of the tank body, the powder grinding mechanism is located in the tank body and connected with the rotating shaft, the separating screen is arranged below the powder grinding mechanism, the rotating shaft penetrates through the separating screen and is rotationally connected with the separating screen, and a discharging pipe communicated with the interior of the tank body is coaxially arranged at the bottom of the tank body. And the bottom end of the rotating shaft extends into the discharging pipe and is connected with a first fan blade. According to the utility model, material discharge can be accelerated, and the crushing and powdering efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pigment powdering machines, in particular to a pigment powdering machine. Background Art

[0002] Masterbatch is a new type of colorant for polymer materials, also known as pigment preparation. Masterbatch is mainly used in plastics. Masterbatch is composed of three basic elements: pigment or dye, carrier and additive. It is an aggregate obtained by uniformly loading an extraordinary amount of pigment in the resin, which can be called pigment concentrate.

[0003] In the masterbatch production process, a powder grinder is required to crush solid pigments into fine powder. Existing powder grinders will set a screen at the discharging position to screen the ground material to ensure that the discharged material meets the use requirements. However, the sieve hole diameter of the screen is very small, which easily leads to material accumulation and is not convenient for discharging. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a heat mixing mechanism and a hydrolysis tank, which can evenly and effectively increase the material temperature, accelerate the mixing of materials, and improve the reaction speed.

[0005] According to an embodiment of the utility model, a powder beating machine includes a tank body, a rotating shaft passing through the top of the tank body and extending coaxially into the interior thereof, a driving mechanism transmission-connected to the top of the rotating shaft, a feeding hopper arranged at the top of the tank body and connected to the interior thereof, and also includes a powder beating mechanism located in the tank body and connected to the rotating shaft, and a partition screen arranged below the powder beating mechanism, the rotating shaft passing through the partition screen and being rotationally connected thereto, a discharge pipe coaxially connected to the interior of the tank body is provided at the bottom of the tank body, and the bottom end of the rotating shaft extends into the discharge pipe and is connected to a first fan blade.

[0006] Preferably, a sealing cover is detachably connected to the feed hopper, and an air intake mechanism communicating with the interior of the tank body is provided on the top of the tank body.

[0007] Further preferably, the air intake mechanism includes an air intake cylinder coaxially fixedly arranged on the top of the tank body, the top end of the rotating shaft passes through the air intake cylinder and is rotatably connected thereto, the rotating shaft is connected to a second fan blade located in the air intake cylinder, one end of the air intake cylinder is connected to an air supply pipe connected to the interior of the tank body, and the other end of the air intake cylinder is connected to an air intake pipe.

[0008] Further preferably, a plurality of the air supply pipes are provided, each of the air supply pipes is connected to a branch pipe penetrating through the side wall of the tank body and extending to below the partition screen, and each of the branch pipes is connected to an air nozzle arranged toward the partition screen.

[0009] Further preferably, the powdering mechanism includes a pre-grinding assembly connected to the rotating shaft, and a powdering knife located below the pre-grinding assembly and fixedly connected to the rotating shaft.

[0010] Further preferably, the pre-grinding assembly comprises a pre-grinding roller coaxially fixedly connected to the rotating shaft, and a side surface of the pre-grinding roller is gap-matched with an inner wall surface of the tank body.

[0011] Further preferably, a frustum-shaped material guide platform is fixedly provided on the top of the pre-grinding roller, and a pre-grinding knife is also fixedly connected to the material guide platform.

[0012] Further preferably, the pre-grinding knives are provided in plurality and are arranged radially along the material guide platform, and the plurality of pre-grinding knives are evenly distributed along the circumference of the rotating shaft.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] A rotating shaft, a powder beating mechanism and a first fan blade are provided. The powder beating mechanism and the first fan blade are connected to the rotating shaft and driven by the rotating shaft. A partition screen is provided below the powder beating mechanism to divide the interior of the tank into an upper powder beating space and a lower discharge space. The first fan blade is located in the discharge pipe. During the powder beating process, the first fan blade rotates synchronously at a high speed to produce a wind effect, and the airflow in the tank is drawn out, which can effectively accelerate the materials that meet the screening grade to pass through the partition screen and prevent the materials from accumulating on the partition screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the structure of a powder beating machine.

[0016] Figure 2 The utility model is a schematic diagram of the internal structure of a tank in a powder making machine.

[0017] In the above drawings: 1. tank body; 2. rotating shaft; 3. driving mechanism; 4. feed hopper; 401. sealing cover; 5. powdering mechanism; 510. pre-grinding assembly; 511. pre-grinding roller; 512. material guide table; 513. pre-grinding knife; 520. powdering knife; 6. partition screen; 7. discharge pipe; 8. first fan blade; 9. air intake mechanism; 901. air intake cylinder; 902. second fan blade; 903. air supply pipe; 904. air intake pipe; 905. branch pipe; 906. air nozzle. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Embodiment 1:

[0020] like Figure 1 , Figure 2As shown, a powder beating machine comprises a tank body 1, a rotating shaft 2 penetrating the top of the tank body 1 and extending coaxially into the interior thereof, a driving mechanism 3 drivingly connected to the top of the rotating shaft 2, and a feeding hopper 4 arranged at the top of the tank body 1 and communicating with the interior thereof, the driving mechanism 3 comprises a motor fixed to the top of the tank body 1 by a bracket, the powder beating machine further comprises a powder beating mechanism 5 located in the tank body 1 and connected to the rotating shaft 2, and a partition screen 6 arranged below the powder beating mechanism 5, the partition screen 6 divides the space inside the tank body 1 into an upper powder beating space and a lower discharge space, the rotating shaft 2 penetrates the partition screen 6 and is rotatably connected thereto, a discharge pipe 7 communicating with the interior thereof is coaxially provided at the bottom of the tank body 1, and the bottom end of the rotating shaft 2 extends into the discharge pipe 7 and is connected to a first fan blade 8;

[0021] During the powdering process, the driving mechanism 3 drives the rotating shaft 2 to rotate at a high speed, and the rotating shaft 2 drives the powdering mechanism 5 to perform the powdering work. At the same time, the rotating shaft 2 drives the first fan blade 8 to rotate at a high speed, generating an outward wind direction, so that a certain negative pressure is generated inside the tank body 1, so that the crushed materials in the powdering process can be discharged through the separation screen 6 more quickly, and the accumulation of materials in the powdering space is prevented from affecting the powdering efficiency.

[0022] In order to reduce the leakage of dust generated by powdering at the feed hopper 4, in a further embodiment, a sealing cover 401 is detachably connected to the feed hopper 4, and an air intake mechanism 9 communicating with the interior of the tank body 1 is provided on the top of the tank body 1;

[0023] Specifically, Figure 2 As shown, the air intake mechanism 9 includes an air intake cylinder 901 coaxially fixedly arranged on the top of the tank body 1, the top end of the rotating shaft 2 passes through the air intake cylinder 901 and is rotatably connected thereto, the rotating shaft 2 is connected to a second fan blade 902 located in the air intake cylinder 901, one end of the air intake cylinder 901 is connected to an air delivery pipe 903 communicating with the inside of the tank body 1, and the other end of the air intake cylinder 901 is connected to an air intake pipe 904;

[0024] In order to enable the gas entering the tank body 1 to produce a blowing effect on the crushed materials, in a further embodiment, the gas delivery pipe 903 is provided with a plurality of gas delivery pipes, each of which is connected to a branch pipe 905 that penetrates the side wall of the tank body 1 and extends to the bottom of the partition screen 6, and the end of the branch pipe 905 is fixedly connected to the partition screen 6 through a snap fastener, and each of the branch pipes 905 is connected to an air nozzle 906 arranged toward the partition screen 6;

[0025] In this embodiment, four air delivery pipes 903 and four branch pipes 905 are provided. During the air intake process, the airflow generated by the air nozzle 906 can blow part of the material accumulated on the separation screen 6 to accelerate the material powdering. The material that meets the requirements of the separation screen 6 is also easier to pass through in the active state, which is also conducive to accelerating the discharge of the material.

[0026] In order to facilitate material classification and crushing and improve powdering efficiency, in a further embodiment, the powdering mechanism 5 includes a pre-grinding assembly 510 connected to the rotating shaft 2, and a powdering knife 520 located below the pre-grinding assembly 510 and fixedly connected to the rotating shaft 2;

[0027] The pre-grinding component 510 grinds the material into a material close to the screening grade, so that the subsequent powdering knife 520 can quickly complete the powdering work;

[0028] Specifically, Figure 2 As shown, the pre-grinding assembly 510 includes a pre-grinding roller 511 coaxially fixedly connected to the rotating shaft 2, the pre-grinding roller 511 is a frustum-shaped structure, and the spacing between its side surface and the side wall of the tank body 1 gradually decreases from top to bottom, and the side surface of the pre-grinding roller 511 is in clearance with the inner wall surface of the tank body 1;

[0029] In order to facilitate material crushing, in a further embodiment, a frustum-shaped material guide platform 512 is fixedly provided on the top of the pre-grinding roller 511, and a pre-grinding knife 513 is also fixedly connected to the material guide platform 512, and the pre-grinding knife 513 is a sheet structure;

[0030] There are multiple pre-grinding knives 513 and they are radially arranged along the material guide platform 512, and the multiple pre-grinding knives 513 are evenly distributed along the circumference of the rotating shaft 2, and a material transfer channel is formed between two adjacent pre-grinding knives 513. After the material is crushed by the pre-grinding knives 513, it falls into the material transfer channel. Under the action of centrifugal force, the material enters between the pre-grinding roller 511 and the tank body 1, and after being ground by the pre-grinding roller 511, it enters the working space of the powdering knife 520 until it is discharged after the crushing is completed and meets the screening requirements.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A powder beating machine, comprising a tank body (1), a rotating shaft (2) penetrating the top of the tank body (1) and coaxially extending into the interior thereof, a driving mechanism (3) drivingly connected to the top of the rotating shaft (2), and a feeding hopper (4) arranged at the top of the tank body (1) and communicating with the interior thereof, characterized in that: It also includes a powder beating mechanism (5) located in the tank body (1) and connected to the rotating shaft (2), and a partition screen (6) arranged below the powder beating mechanism (5); the rotating shaft (2) passes through the partition screen (6) and is rotatably connected thereto; a discharge pipe (7) is coaxially provided at the bottom of the tank body (1) and is in communication with the interior thereof; the bottom end of the rotating shaft (2) extends into the discharge pipe (7) and is connected to a first fan blade (8).

2. A powder beating machine according to claim 1, characterized in that: The feed hopper (4) is detachably connected to a sealing cover (401), and the top of the tank body (1) is provided with an air intake mechanism (9) which is in communication with the interior thereof.

3. A powder beating machine according to claim 2, characterized in that: The air intake mechanism (9) comprises an air intake cylinder (901) coaxially fixedly arranged on the top of the tank body (1); the top end of the rotating shaft (2) passes through the air intake cylinder (901) and is rotatably connected thereto; the rotating shaft (2) is connected to a second fan blade (902) located inside the air intake cylinder (901); one end of the air intake cylinder (901) is connected to an air supply pipe (903) communicating with the interior of the tank body (1); and the other end of the air intake cylinder (901) is connected to an air intake pipe (904).

4. A powder beating machine according to claim 3, characterized in that: There are multiple air delivery pipes (903), each of which is connected to a branch pipe (905) that passes through the side wall of the tank body (1) and extends to the bottom of the partition screen (6), and each of which is connected to an air nozzle (906) that is arranged toward the partition screen (6).

5. A powder beating machine according to any one of claims 1 to 4, characterized in that: The powdering mechanism (5) comprises a pre-grinding assembly (510) connected to the rotating shaft (2), and a powdering knife (520) located below the pre-grinding assembly (510) and fixedly connected to the rotating shaft (2).

6. A powder beating machine according to claim 5, characterized in that: The pre-grinding assembly (510) comprises a pre-grinding roller (511) coaxially fixedly connected to the rotating shaft (2), and the side surface of the pre-grinding roller (511) is clearance-matched with the inner wall surface of the tank body (1).

7. A powder beating machine according to claim 6, characterized in that: A frustum-shaped material guide platform (512) is fixedly provided on the top of the pre-grinding roller (511), and a pre-grinding knife (513) is also fixedly connected to the material guide platform (512).

8. A powder beating machine according to claim 7, characterized in that: The pre-grinding knives (513) are provided in plurality and are arranged radially along the material guide platform (512), and the plurality of pre-grinding knives (513) are evenly distributed along the circumference of the rotating shaft (2).

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