Rubber and plastic pigment fine grinding device

Abstract

The utility model relates to the technical field of grinding devices, in particular to a rubber and plastic pigment fine grinding device which comprises a precision grinding machine, one side of the upper end of the precision grinding machine is fixedly connected with a grinding head assembly, the upper end of the precision grinding machine is fixedly connected with a conveying device, one side of the precision grinding machine is fixedly connected with a discharging port, and an adjusting assembly is arranged under the discharging port. The adjusting assembly comprises a base, a shell of a driving motor is fixedly connected to the inner side of the base, a driving shaft is fixedly connected to one end of a main shaft of the driving motor, a friction block is fixedly connected to one end of the driving shaft, a driving assembly is fixedly connected to the inner side of the base, a rotating plate is fixedly connected to the upper end of the driving assembly, and an inclined plate is fixedly connected to the upper end of the rotating plate. The friction block is matched with the inclined surface of the friction column, so that the angle of the inclined plate can be flexibly adjusted, the discharging direction can be adjusted as required to prevent accumulation, and the blockage can be dredged through reverse operation to guarantee continuous discharging.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, specifically to a fine grinding device for rubber and plastic pigments. Background Technology

[0002] The fine grinding device for rubber and plastic pigments uses a precise grinding structure and process to finely grind rubber and plastic pigments to the micron or even submicron level, meeting the core requirements of rubber and plastic products for "narrow pigment particle size distribution and uniform dispersion".

[0003] After the rubber and plastic pigments are fed into the grinding chamber, they are finely ground through the following process: the grinding head rotates at high speed under the drive of the spindle, and at the same time, the appropriate pressure is applied to the material through the "pressure adjustment mechanism", so that the pigment particles are subjected to a combination of mechanical forces such as shearing, crushing and friction between the "grinding head end face and the worktable surface". By controlling the "grinding time, pressure and speed", the agglomerated pigment particles are gradually broken and refined, and the dispersibility between particles is improved.

[0004] The physicochemical properties of rubber and plastic pigments are one of the core factors leading to accumulation. Especially after fine grinding, the material particles are finer and have higher surface energy. After fine grinding, the pigment particle size is usually reduced to 1-10μm, the specific surface area increases sharply, and the van der Waals force and electrostatic force between particles are significantly enhanced, making it easy to agglomerate. The ground material cannot be conveyed in time below the discharge port, and it continues to accumulate and form agglomerates, causing the discharge port to be blocked and the discharge to be interrupted.

[0005] Therefore, a fine grinding device for rubber and plastic pigments is proposed to address the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a fine grinding device for rubber and plastic pigments to solve the technical problems mentioned in the above-mentioned technical background.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A fine grinding device for rubber and plastic pigments includes a precision grinding mill. A grinding head assembly is fixedly connected to one side of the upper end of the precision grinding mill. A conveying device is fixedly connected to the upper end of the precision grinding mill. A discharge port is fixedly connected to one side of the precision grinding mill. An adjusting component is arranged directly below the discharge port. The adjusting component includes a base. The housing of a drive motor is fixedly connected to the inner side of the base. A drive shaft is fixedly connected to one end of the main shaft of the drive motor. A friction block is fixedly connected to one end of the drive shaft. A drive assembly is fixedly connected to the inner side of the base. A rotating plate is fixedly connected to the upper end of the drive assembly. An inclined plate is fixedly connected to the upper end of the rotating plate.

[0009] As a further optimization of this utility model, the driving component includes an electric telescopic rod, the telescopic top end of which is fixedly connected to a push plate, a groove is provided on the outer side of the push plate, and a ball bearing is embedded in the inner side of the groove.

[0010] As a further optimization of this utility model, the upper end of the base is slidably connected to a connecting shaft, the lower end of the connecting shaft is fixedly connected to a friction column, the lower end of the friction column is provided with a limit groove, and the upper end of the connecting shaft is fixedly connected to the bottom of the rotating plate.

[0011] As a further optimization of this utility model, the inner side of the limiting groove is rotatably connected to the push plate, the limiting groove is an annular groove, the inner wall of the limiting groove is a smooth arc surface, and the friction column is a columnar structure with inclined surfaces at both ends.

[0012] As a further optimization of this utility model, the outer side of the ball rolls in contact with the inner wall of the limiting groove, and multiple balls are embedded in the inner side of the sliding groove, with the multiple balls distributed at equal intervals on the inner side of the sliding groove.

[0013] As a further optimization of this utility model, the base is a hollow box structure, the friction block is in the shape of a frustum cone, the conical surface of the friction block is adapted to the inclined surface of the friction column, and the outer side of the friction block is in contact with the upper inclined surface of the friction column.

[0014] As a further optimization of this utility model, the discharge port is located at the top of the inclined plate, the inclination angle of the inclined plate is set to 35°, and the bottom of the rotating plate is rotatably connected to the upper end of the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, the adjustable components and the inclined surface adaptation design of the friction block and friction column maximize the contact area to efficiently transmit torque. Combined with the fixed connection between the connecting shaft and the rotating plate, the angle of the inclined plate can be flexibly adjusted. This allows for adjusting the discharge direction as needed to prevent accumulation, and also enables reverse operation to clear blockages and ensure continuous discharge. Through the cooperation of the ball bearings and the smooth arc-shaped limiting groove, sliding friction is converted into rolling friction, which greatly reduces motion resistance, avoids jamming, and ensures that the push plate driven by the electric telescopic rod moves accurately and smoothly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of the adjustment component of this utility model;

[0019] Figure 3This is a schematic diagram of the cross-sectional structure of the base of this utility model;

[0020] Figure 4 This is a schematic diagram of the friction block and the friction block separated structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the friction column of this utility model;

[0022] Figure 6 This utility model Figure 5 Schematic diagram of the structure at point A in the middle;

[0023] Figure 7 This is a schematic diagram of the inclined plate structure of this utility model.

[0024] In the diagram: 1. Precision grinding machine; 2. Grinding head assembly; 3. Conveying device; 4. Discharge port; 5. Adjusting component; 51. Base; 52. Drive motor; 53. Drive shaft; 54. Friction block; 55. Drive assembly; 551. Electric telescopic rod; 552. Push plate; 553. Slide groove; 554. Ball bearing; 555. Limiting groove; 556. Friction column; 557. Connecting shaft; 56. Rotating plate; 57. Inclined plate. Detailed Implementation

[0025] 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.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Please see Figures 1-7 This utility model provides a technical solution:

[0028] A fine grinding device for rubber and plastic pigments includes a precision grinding machine 1. A grinding head assembly 2 is fixedly connected to one side of the upper end of the precision grinding machine 1. A conveying device 3 is fixedly connected to the upper end of the precision grinding machine 1. A discharge port 4 is fixedly connected to one side of the precision grinding machine 1. An adjustment assembly 5 is arranged directly below the discharge port 4. The adjustment assembly 5 includes a base 51. The housing of a drive motor 52 is fixedly connected to the inner side of the base 51. A drive shaft 53 is fixedly connected to one end of the main shaft of the drive motor 52. A friction block 54 is fixedly connected to one end of the drive shaft 53. A drive assembly 55 is fixedly connected to the inner side of the base 51. A rotating plate 56 is fixedly connected to the upper end of the drive assembly 55. An inclined plate 57 is fixedly connected to the upper end of the rotating plate 56.

[0029] It should be noted that the drive assembly 55 includes an electric telescopic rod 551, and a push plate 552 is fixedly connected to the telescopic top end of the electric telescopic rod 551. A groove 553 is provided on the outer side of the push plate 552, and a ball bearing 554 is embedded in the inner side of the groove 553.

[0030] Specifically: a connecting shaft 557 is slidably connected to the upper end of the base 51, a friction column 556 is fixedly connected to the lower end of the connecting shaft 557, a limit groove 555 is opened at the lower end of the friction column 556, the upper end of the connecting shaft 557 is fixedly connected to the bottom of the rotating plate 56, the discharge port 4 is set at the top of the inclined plate 57, the inclination angle of the inclined plate 57 is set to 35°, and the bottom of the rotating plate 56 is rotatably connected to the upper end of the base 51.

[0031] Furthermore, this design makes the movement of the electric telescopic rod 551 driving the push plate 552 smoother and more responsive, thereby ensuring the angle adjustment accuracy of the friction column 556, avoiding the deviation of the discharge direction caused by adjustment deviation, and improving the stability of equipment operation.

[0032] As a further implementation of the above technical solution: the inner side of the limiting groove 555 is rotatably connected to the push plate 552, the limiting groove 555 is an annular groove, the inner wall of the limiting groove 555 is a smooth arc surface, and the friction column 556 is a columnar structure with inclined surfaces at both the top and bottom.

[0033] It should be noted that: the outer side of the ball 554 rolls in contact with the inner wall of the limiting groove 555, and multiple balls 554 are embedded in the inner side of the slide groove 553. The multiple balls 554 are evenly distributed in the inner side of the slide groove 553. The base 51 is a hollow box structure. The friction block 54 is a frustum-shaped structure. The conical surface of the friction block 54 is adapted to the inclined surface of the friction column 556. The outer side of the friction block 54 is in contact with the upper inclined surface of the friction column 556.

[0034] Specifically, the inclined surfaces of the friction column 556 and the friction block 54 are matched and kept in contact, which maximizes the contact area between the friction block 54 and the friction column 556. This ensures that when the drive motor 52 drives the friction block 54 to rotate through the drive shaft 53, the torque can be efficiently transmitted to the friction column 556, avoiding slippage due to insufficient contact area.

[0035] Furthermore, the rotation of the friction column 556 can directly drive the rotating plate 56 and the upper inclined plate 57 to rotate synchronously, so as to realize the flexible adjustment of the angle of the inclined plate 57. It can adjust the downward direction of the material according to the discharge requirements to avoid the material from accumulating locally on the inclined plate 57. It can also quickly clear any blockages that may occur in the discharge port 4 through reverse rotation operation, ensuring the continuity of discharge and reducing downtime for cleaning.

[0036] Workflow: Start the main control system of the device. The operator pours the rubber and plastic pigment to be ground into the feed port of the conveying device 3 and starts the conveying device 3. The conveying device 3 conveys the rubber and plastic pigment to the grinding chamber of the precision grinder 1 at a uniform speed through the built-in spiral conveying structure. The conveying speed is preset by the system according to the pigment viscosity. When the pigment in the grinding chamber of the precision grinder 1 reaches the preset filling amount, its built-in material sensor sends a signal to the main control system. The system immediately links the grinding head assembly 2. The drive mechanism of the grinding head assembly 2 drives the grinding head to move downward until it contacts the pigment in the grinding chamber. According to the preset parameters, it starts to rotate and applies a composite mechanical force such as shearing, crushing, and friction to the rubber and plastic pigment, thus starting the fine grinding process.

[0037] After the rubber and plastic pigments are finely ground by the grinding head assembly 2, the discharge valve at the bottom of the grinding chamber of the precision grinder 1 opens, and the ground pigments fall naturally through the discharge port 4, landing precisely on the inclined plate 57 of the adjusting assembly 5. The design of the discharge port 4 directly below ensures that the material does not deviate and falls, preventing material leakage from the outside of the inclined plate 57. When the initial material accumulation at one end of the inclined plate 57 reaches a certain level, the operator operates the button to send a signal to the control unit of the adjusting assembly 5. The control unit immediately starts the drive motor 52: the main shaft of the drive motor 52 begins to rotate, driving the drive shaft 53 fixedly connected to it to rotate synchronously. The friction block 54 fixedly connected to the end of the drive shaft 53 away from the motor rotates together with the drive shaft 53. At this time, the friction block... The conical outer surface of the friction block 54 is in close contact with the upper inclined surface of the friction column 556. The rotation of the friction block 54 can drive the friction column 556 to rotate at a certain angle, and at the same time drive the rotating plate 56 to rotate at a certain angle, which can effectively adjust the accumulation direction of the discharge port. In reverse operation, the operator will control the electric telescopic rod 551 through the control unit. The electric telescopic rod 551 will drive the push plate 552 to move upward, and at the same time drive the friction column 556 to move upward, so that the lower inclined surface of the friction column 556 contacts the inclined surface of the friction block 54. At this time, the drive motor 52 will drive the friction block 54 and the friction column 556 to rotate in opposite directions to prevent the discharge port 4 from being blocked.

[0038] While the friction column 556 rotates, the rolling of the ball 554 can greatly reduce the frictional resistance between the push plate 552 and the limiting groove 555, and avoid inaccurate angle adjustment due to jamming.

[0039] Once all the rubber and plastic pigments to be ground have been conveyed to the precision grinding machine 1 and the grinding process is complete, the conveying device 3 will stop operating first. The grinding head assembly 2 of the precision grinding machine 1 will stop rotating and return to its initial height. The discharge valve at the bottom of the grinding chamber will be closed, and no more material will be discharged to the discharge port 4.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A fine grinding device for rubber and plastic pigments, comprising a precision grinding machine (1), characterized in that: The precision grinding machine (1) has a grinding head assembly (2) fixedly connected to one side of its upper end, a conveying device (3) fixedly connected to the upper end of the precision grinding machine (1), a discharge port (4) fixedly connected to one side of the precision grinding machine (1), and an adjustment component (5) provided directly below the discharge port (4). The adjustment component (5) includes a base (51), the housing of a drive motor (52) is fixedly connected to the inner side of the base (51), a drive shaft (53) is fixedly connected to one end of the main shaft of the drive motor (52), a friction block (54) is fixedly connected to one end of the drive shaft (53), a drive assembly (55) is fixedly connected to the inner side of the base (51), a rotating plate (56) is fixedly connected to the upper end of the drive assembly (55), and an inclined plate (57) is fixedly connected to the upper end of the rotating plate (56).

2. The fine grinding device for rubber and plastic pigments according to claim 1, characterized in that: The drive assembly (55) includes an electric telescopic rod (551), and a push plate (552) is fixedly connected to the telescopic top end of the electric telescopic rod (551). A groove (553) is provided on the outer side of the push plate (552), and a ball bearing (554) is embedded in the inner side of the groove (553).

3. The fine grinding device for rubber and plastic pigments according to claim 1, characterized in that: The upper end of the base (51) is slidably connected to a connecting shaft (557), and the lower end of the connecting shaft (557) is fixedly connected to a friction column (556). A limit groove (555) is opened at the lower end of the friction column (556), and the upper end of the connecting shaft (557) is fixedly connected to the bottom of the rotating plate (56).

4. The fine grinding device for rubber and plastic pigments according to claim 3, characterized in that: The inner side of the limiting groove (555) is rotatably connected to the push plate (552). The limiting groove (555) is an annular groove. The inner wall of the limiting groove (555) is a smooth arc surface. The friction column (556) is a columnar structure with inclined surfaces at both ends.

5. The fine grinding device for rubber and plastic pigments according to claim 2, characterized in that: The outer side of the ball (554) rolls in contact with the inner wall of the limiting groove (555), and multiple balls (554) are embedded in the inner side of the slide groove (553), with the multiple balls (554) distributed at equal intervals in the inner side of the slide groove (553).

6. The fine grinding device for rubber and plastic pigments according to claim 1, characterized in that: The base (51) is a hollow box structure. The friction block (54) is a frustum-shaped structure. The conical surface of the friction block (54) is adapted to the inclined surface of the friction column (556). The outer side of the friction block (54) is in contact with the upper inclined surface of the friction column (556).

7. The fine grinding device for rubber and plastic pigments according to claim 1, characterized in that: The discharge port (4) is located at the top of the inclined plate (57), the inclination angle of the inclined plate (57) is set to 35°, and the bottom of the rotating plate (56) is rotatably connected to the upper end of the base (51).

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