Stable upper discharging rod pin type sand mill

By introducing a drive assembly into the pin-type sand mill to move the cleaning plate up and down, the problem of ink adhering to the inner wall of the sand mill cylinder and being difficult to clean is solved, achieving more efficient cleaning and ensuring product purity.

CN224194911UActive Publication Date: 2026-05-05JIANGSU FARFLY IND INTELLIGENT EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU FARFLY IND INTELLIGENT EQUIP CO LTD
Filing Date
2025-05-14
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In existing pin-type sand mills, ink tends to adhere to the inner wall of the milling cylinder during the grinding process, making it difficult to clean and resulting in cross-contamination, reduced product purity, and poor cleaning effect.

Method used

A stable top-discharge pin-type sand mill was designed. A drive assembly drives the grinding pin to rotate and the cleaning plate to move up and down. Through the stirring of the grinding pin and the cleaning of the cleaning plate, the ink on the inner wall of the sand mill is actively removed. The use of water ensures that the inside of the mill is clean.

Benefits of technology

It significantly improves the cleanliness and efficiency of the sand milling process, reduces manual cleaning and maintenance, ensures product quality and production stability, and avoids cross-contamination and purity reduction caused by ink adhesion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stable upper discharge rod pin type sand mill, which relates to the technical field of sand mills, and comprises a sand mill main body, one side of the sand mill main body is respectively provided with a control panel and a code scanning printer, the bottom of the sand mill main body is fixedly connected with moving wheels at equal intervals, one side of the sand mill main body is fixedly connected with a shell, and the shell is fixedly connected with the sand mill main body. A barrel is fixedly connected to the bottom of the shell, a feeding one-way valve is arranged at the bottom of the barrel, and a discharging port is formed in the top of the barrel. According to the stable upper discharging rod pin type sand mill disclosed by the utility model, the grinding rod pin is driven by the driving assembly to stir, and the cleaning plate can move up and down synchronously, so that residual printing ink on the inner wall of the sand milling cylinder is actively removed and is prevented from being attached to the inner wall, and after the sand milling is finished, the cleaning plate is not damaged. And then clean water is added, the interior of the barrel is effectively cleaned by combining the stirring effect of the grinding rod pin with continuous cleaning of the up-down moving cleaning plate, manual cleaning and maintenance work is reduced, and the cleaning effect and the working efficiency are greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of sand mill technology, and in particular to a stable top-discharge pin-type sand mill. Background Technology

[0002] The pin mill is a machine suitable for ultra-fine dispersion and nano-level grinding of water-based and solvent-based materials. It is mainly used for grinding materials such as inkjet ink, paint, dye and pigment. Due to the current demand for paint, dye and other materials, the pin mill is becoming increasingly valued. It not only has a good grinding effect on some paint, dye and other materials, but also produces paint and other materials with a high degree of fineness.

[0003] Patent application CN214974489U discloses a rod-pin type nano-sand mill, which includes a mill body and a stirring device. The stirring device includes a rotating shaft and an impeller. The impeller includes a hub and several blades fixed to the hub. A mounting hole is provided on the hub, through which the rotating shaft passes. Fasteners are provided on the hub to fix it to the rotating shaft. This application improves the convenience of cleaning the blades for workers.

[0004] However, during the grinding process, the ink not only sticks to the blades but also adheres to the inner wall of the grinding cylinder and cannot be fully discharged. It is difficult for operators to clean the ink adhering to the inner wall of the grinding cylinder, which makes it easy for it to be mixed into different types of products that are subsequently ground, reducing the purity of the products. The patent cannot fully clean the ink adhering to the inner wall of the grinding cylinder, thus reducing the cleaning effect. To address the above problems, we have launched a stable top discharge rod pin type grinding mill. Utility Model Content

[0005] This utility model discloses a stable top-discharge rod pin type sand mill, which improves upon the existing structure and its shortcomings to provide a stable top-discharge rod pin type sand mill, thereby achieving better practical value.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A stable top-discharge pin-type sand mill includes a main body of the sand mill. A control panel and a barcode scanner are respectively installed on one side of the main body. Movable wheels are fixedly connected at equal intervals to the bottom of the main body. A housing is fixedly connected to one side of the main body. A cylinder is fixedly connected to the bottom of the housing. A one-way valve for feeding is installed at the bottom of the cylinder. A discharge port is installed at the top of the cylinder. A water inlet and a water outlet are fixedly connected to the outer side of the cylinder. A grinding pin is rotatably connected to the top of the inner wall of the cylinder. A drive assembly is installed inside the housing. A cleaning plate is slidably connected inside the cylinder. The drive assembly is used to drive the grinding pin to rotate and move the cleaning plate.

[0008] In a preferred embodiment, the drive assembly includes a motor disposed at the bottom of the inner wall of the housing. A rotating rod is fixedly connected to the top of the motor output shaft. A sprocket is fixedly connected to both the outer side of the rotating rod and the top of the grinding rod pin. A chain is disposed on the outer side of the sprocket.

[0009] In a preferred embodiment, a first gear is fixedly connected to the outer side of the rotating rod, and two threaded rods are rotatably connected inside the housing. A second gear is fixedly connected to the outer side of the two threaded rods, and the first gear meshes with the second gear.

[0010] In a preferred embodiment, the outer side of the threaded rod is threadedly connected to a sleeve rod, the outer side of the sleeve rod is slidably connected to the inside of the cylinder, and the bottom of the sleeve rod is fixedly connected to the top of the cleaning plate.

[0011] In a preferred embodiment, two mounting strips are fixedly connected to the bottom of the inner wall of the housing, and a keyway is provided on one side of the two mounting strips. A flat key is fixedly connected to the outer side of the sleeve rod, and the outer side of the flat key is slidably connected to the inside of the keyway.

[0012] In a preferred embodiment, the cleaning plate is provided with bristles on both the outer and inner sides.

[0013] In a preferred embodiment, a fixing block is fixedly connected to one side of the inner wall of the housing, and the interior of the fixing block is rotatably connected to the exterior of the rotating rod.

[0014] The stable top-discharge rod pin type sand mill provided by this utility model has the following advantages:

[0015] Firstly, the drive component can not only drive the grinding rod pin to rotate, but also move the cleaning plate up and down to actively remove the ink residue on the inner wall of the grinding cylinder, preventing it from adhering to the inner wall and preventing ink adhesion from causing cross-contamination or a decrease in product purity.

[0016] Secondly, after the sand milling is completed, water is added and the grinding rods are used to stir the mixture, and the cleaning plate continuously cleans the inside of the cylinder to ensure cleanliness. This reduces manual cleaning and maintenance, significantly improves the cleanliness and efficiency of the sand milling process, and helps to ensure product quality and production stability. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a stable top-discharge bar pin type sand mill proposed in this utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of a stable top-discharge bar pin type sand mill proposed in this utility model.

[0019] Figure 3 This is a first exploded schematic diagram of a stable top-discharge bar pin type sand mill proposed in this utility model.

[0020] Figure 4 This is a second exploded schematic diagram of a stable top-discharge bar pin type sand mill proposed in this utility model.

[0021] Figure 5 This is a third exploded view of a stable top-discharge bar pin type sand mill proposed in this utility model.

[0022] In the attached diagram: 1. Sand mill body; 2. Control panel; 3. Barcode scanner / printer; 4. Casters; 5. Housing; 6. Cylinder; 7. Feed check valve; 8. Discharge port; 9. Water inlet; 10. Water outlet; 11. Grinding rod pin; 12. Sprocket; 13. Chain; 14. Fixing block; 15. Rotating rod; 16. First gear; 17. Threaded rod; 18. Second gear; 19. Sleeve rod; 20. Cleaning plate; 21. Flat key; 22. Mounting strip; 23. Keyway; 24. Motor. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] The stable top-discharge bar pin type sand mill disclosed in this utility model is mainly used in sand mill applications.

[0025] Reference Figures 1 to 5 A stable top-discharge bar pin type sand mill includes: a sand mill body 1, a control panel 2 and a barcode scanner 3 respectively provided on one side of the sand mill body 1, movable wheels 4 fixedly connected at equal intervals to the bottom of the sand mill body 1, a shell 5 fixedly connected to one side of the sand mill body 1, a cylinder 6 fixedly connected to the bottom of the shell 5, a feed one-way valve 7 provided at the bottom of the cylinder 6, a discharge port 8 provided at the top of the cylinder 6, a water inlet 9 and a water outlet 10 fixedly connected to the outer side of the cylinder 6 respectively, a grinding bar pin 11 rotatably connected to the top of the inner wall of the cylinder 6, a drive assembly provided inside the shell 5, and a cleaning plate 20 slidably connected inside the cylinder 6. The drive assembly is used to drive the grinding bar pin 11 to rotate and drive the cleaning plate 20 to move.

[0026] The drive assembly includes a motor 24, which is located at the bottom of the inner wall of the housing 5. A rotating rod 15 is fixedly connected to the top of the output shaft of the motor 24. A sprocket 12 is fixedly connected to the outer side of the rotating rod 15 and the top of the grinding rod pin 11. A chain 13 is provided on the outer side of the sprocket 12.

[0027] A first gear 16 is fixedly connected to the outer side of the rotating rod 15, and two threaded rods 17 are rotatably connected inside the housing 5. A second gear 18 is fixedly connected to the outer side of the two threaded rods 17, and the first gear 16 meshes with the second gear 18.

[0028] The outer side of the threaded rod 17 is threadedly connected to the sleeve rod 19. The outer side of the sleeve rod 19 is slidably connected to the inside of the cylinder 6, and the bottom of the sleeve rod 19 is fixedly connected to the top of the cleaning plate 20.

[0029] Two mounting strips 22 are fixedly connected to the bottom of the inner wall of the housing 5. A keyway 23 is provided on one side of the two mounting strips 22. A flat key 21 is fixedly connected to the outer side of the sleeve rod 19. The outer side of the flat key 21 is slidably connected to the inside of the keyway 23.

[0030] In the above technical solution, considering that during the grinding process, ink not only sticks to the blades but also adheres to the inner wall of the grinding cylinder and cannot be fully discharged, it is difficult for operators to clean the ink adhering to the inner wall of the grinding cylinder. This leads to the ink easily being mixed into different types of products being ground subsequently, reducing product purity. The patent cannot adequately clean the ink adhering to the inner wall of the grinding cylinder, thus reducing the cleaning effect. To solve this problem, the specific operation is as follows: Ink is conveyed from the feed one-way valve 7 into the cylinder 6. By setting up a drive assembly, the motor 24 is started to drive the rotating rod 15 to rotate. Utilizing the transmission action of the sprocket 12 and chain 13, the grinding rod pin 11 is driven to grind the ink inside the cylinder 6. Simultaneously, the rotation of the rotating rod 15 drives the first gear 16. The rotation, utilizing the meshing relationship between the first gear 16 and the second gear 18, further drives the second gear 18 and the threaded rod 17 to rotate. Utilizing the meshing relationship between the threaded rod 17 and the sleeve rod 19, as well as the limiting effect of the flat key 21 and the keyway 23, the sleeve rod 19 moves downwards, thereby driving the cleaning plate 20 to move up and down inside the cylinder 6 to clean the inner wall and prevent ink from adhering to it. After grinding, the discharge port 8 is connected to an external pump to discharge the ink from the discharge port 8. Then, water is pumped into the cylinder 6 from the inlet 9. The motor 24 is restarted to drive the grinding rod pin 11 to stir, while the cleaning plate 20 moves up and down to further clean the inside of the cylinder 6. During this process, the cleaning plate 20 is also cleaned. Finally, the water is discharged from the outlet 10. The drive component not only drives the grinding rod pin 11 to rotate, but also moves the cleaning plate 20 up and down to actively remove residual ink from the inner wall of the grinding cylinder, preventing it from adhering to the inner wall and causing cross-contamination or a decrease in product purity. By adding water and using the stirring of the grinding rod pin 11 and the continuous cleaning of the cleaning plate 20, the inside of the cylinder 6 is kept clean, reducing manual cleaning and maintenance, significantly improving the cleanliness and efficiency of the grinding process, and helping to ensure product quality and production stability.

[0031] Reference Figures 1 to 5 In a preferred embodiment, the cleaning plate 20 is provided with bristles on both the outer and inner sides; a fixing block 14 is fixedly connected to one side of the inner wall of the housing 5, and the interior of the fixing block 14 is rotatably connected to the outer side of the rotating rod 15; during the up-and-down movement of the cleaning plate 20, the bristles can simultaneously clean the inner wall of the cylinder 6 and the outer side of the grinding rod pin 11. This design not only improves cleaning efficiency, but also ensures that the ink is fully removed during the entire sanding and cleaning process, thereby avoiding ink residue from affecting the purity of subsequent products.

[0032] Working principle: During use, ink is fed into the cylinder 6 through the feed check valve 7. A drive assembly is installed, and the motor 24 drives the rotating rod 15 to rotate. The sprocket 12 and chain 13 drive the grinding rod pin 11 to abrade the ink inside the cylinder 6. Simultaneously, the rotation of the rotating rod 15 drives the first gear 16 to rotate. The meshing relationship between the first gear 16 and the second gear 18 further drives the second gear 18 and the threaded rod 17 to rotate. The meshing relationship between the threaded rod 17 and the sleeve rod 19, along with the limiting effect of the flat key 21 and keyway 23, causes the sleeve rod 19 to move downwards. The movement of the cleaning plate 20 inside the cylinder 6 cleans the inner wall and prevents ink from adhering to it. After grinding, the discharge port 8 is connected to an external pump to discharge the ink. Water is then pumped into the cylinder 6 from the inlet 9. The motor 24 is restarted to drive the grinding rod pin 11 to stir. At the same time, the cleaning plate 20 moves up and down to further clean the inside of the cylinder 6. The cleaning plate 20 is also cleaned during this process. Finally, the water is discharged from the outlet 10. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A stable top-discharge rod pin type sand mill, comprising a sand mill body (1), characterized in that, A control panel (2) and a barcode scanner (3) are respectively provided on one side of the main body (1) of the sand mill. The bottom of the main body (1) of the sand mill is fixedly connected with moving wheels (4) at equal intervals. A housing (5) is fixedly connected to one side of the main body (1) of the sand mill. A cylinder (6) is fixedly connected to the bottom of the housing (5). A feed check valve (7) is provided at the bottom of the cylinder (6). A discharge port (8) is provided at the top of the cylinder (6). A water inlet (9) and a water outlet (10) are fixedly connected to the outer side of the cylinder (6). A grinding rod pin (11) is rotatably connected to the top of the inner wall of the cylinder (6). A drive assembly is provided inside the housing (5). A cleaning plate (20) is slidably connected inside the cylinder (6). The drive assembly is used to drive the grinding rod pin (11) to rotate and drive the cleaning plate (20) to move.

2. The stable top-discharge rod pin type sand mill according to claim 1, characterized in that, The drive assembly includes a motor (24), which is located at the bottom of the inner wall of the housing (5). A rotating rod (15) is fixedly connected to the top of the output shaft of the motor (24). A sprocket (12) is fixedly connected to the outer side of the rotating rod (15) and the top of the grinding rod pin (11). A chain (13) is provided on the outer side of the sprocket (12).

3. A stable top-discharge rod pin type sand mill according to claim 2, characterized in that, The outer side of the rotating rod (15) is fixedly connected to a first gear (16), and the inside of the housing (5) is rotatably connected to two threaded rods (17). The outer side of the two threaded rods (17) is fixedly connected to a second gear (18), and the first gear (16) meshes with the second gear (18).

4. A stable top-discharge rod pin type sand mill according to claim 3, characterized in that, The threaded rod (17) is threadedly connected to a sleeve rod (19) on the outside. The outside of the sleeve rod (19) is slidably connected to the inside of the cylinder (6). The bottom of the sleeve rod (19) is fixedly connected to the top of the cleaning plate (20).

5. A stable top-discharge rod pin type sand mill according to claim 4, characterized in that, Two mounting strips (22) are fixedly connected to the bottom of the inner wall of the housing (5). A keyway (23) is provided on one side of the two mounting strips (22). A flat key (21) is fixedly connected to the outer side of the sleeve rod (19). The outer side of the flat key (21) is slidably connected to the inside of the keyway (23).

6. A stable top-discharge rod pin type sand mill according to claim 1, characterized in that, The cleaning plate (20) is provided with bristles on both the outside and inside.

7. A stable top-discharge rod pin type sand mill according to claim 1, characterized in that, A fixing block (14) is fixedly connected to one side of the inner wall of the housing (5), and the inside of the fixing block (14) is rotatably connected to the outside of the rotating rod (15).

Citation Information

Patent Citations

  • Rod pin type nanometer sand mill

    CN214974489U