An artistic painting mineral pigment grinding device

By designing a mineral pigment grinding device for fine painting with a detachable pestle and a built-in vibration motor, the problems of pestle wear and laborious grinding are solved, achieving a highly efficient and energy-saving pigment grinding effect.

CN224443219UActive Publication Date: 2026-07-03CHUZHOU CITY VOCATIONAL COLLEGE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHUZHOU CITY VOCATIONAL COLLEGE
Filing Date
2025-06-03
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Wear at the end of the pestle affects the grinding effect and makes it laborious to use; existing technologies are unable to effectively solve this problem.

Method used

Design a grinding device for mineral pigments for art painting. It adopts a detachable pestle and mortar structure and a built-in vibration motor. Combined with battery power, the device controls the vibrating rod to drive the pestle and mortar to vibrate and grind through a control switch, reducing manual operation.

Benefits of technology

It enables the detachable and replaceable pestle and mortar, extending their service life, improving grinding efficiency, reducing manual labor intensity, and saving costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a grinding device for mineral pigments in art painting, including a pestle body. The pestle body includes a grinding body, a connecting part, and a handle. The connecting part includes a left shell and a right shell. The left shell and the right shell have the same structure and are fixed by bolts. Each of the left shell and the right shell has a reserved placement chamber. This utility model allows the grinding body to be removed by clamping it in the connecting part and disassembling the fixing bolts of the left shell and the right shell, so as to facilitate later replacement. This solves the problem of the grinding quality being affected by the wear of the grinding body end and saves costs.
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Description

Technical Field

[0001] This utility model relates to the field of pigment grinding technology, specifically to a mineral pigment grinding device for art painting. Background Technology

[0002] Most pigments are soil and mineral pigments, as well as biological pigments. Mineral pigments are inorganic pigments, a type of inorganic colored pigment. They mainly come from two sources: one is made from natural ores through beneficiation, crushing, grinding, grading, and refining, primarily used for painting, crafts, antique reproductions, and artifact restoration. The other source of inorganic pigments is natural mineral products, which are then processed into chemically synthesized pigments.

[0003] There are two methods for grinding mineral pigments: one is grinding with a grinder, which is mostly used in mass production, and the other is grinding with a pestle. The latter is more widely used in small-scale production or teaching. The common combination is a mortar and pestle. The end of the pestle wears down due to long-term use, which affects the grinding effect. Furthermore, the crushing and grinding process relies on holding the pestle up and down to pound and grind, which is quite laborious.

[0004] The prior art, disclosed in CN212701649U, describes a vibrating rod, relating to the field of vibrating rods. It includes a vibrating rod housing, within which a vibrating connecting inner rod is movably mounted. One end of the vibrating connecting inner rod is connected to a vibrating core located within the vibrating rod housing. An annular rotating block is movably sleeved on the vibrating connecting inner rod, the diameter of which is smaller than the inner diameter of the vibrating rod housing. In this invention, the replaced vibrating rod housing is fitted onto the vibrating connecting inner rod. Two position locking blocks are aligned with two position locking holes and pushed closer together. The rotating annular block, under the action of its external thread, moves inward, pressing and sliding an L-shaped push rod. The movement of the L-shaped push rod drives the pressing rod to move, thereby moving a sliding locking barrel into a fixed locking groove. As the annular rotating block continues to rotate, the sliding locking barrel can be locked into the fixed locking groove, thus facilitating the fixation of the replaced vibrating rod housing.

[0005] Based on the existing technologies mentioned above, improvements will be made to the currently used pestle and mortar to solve the problems existing in the current use of the pestle and mortar. Utility Model Content

[0006] The problems with the existing technology are as follows: the end of the pestle wears down due to long-term use, which affects the grinding effect. Furthermore, the crushing and grinding process relies on holding the pestle up and down to pound and grind, which is quite laborious.

[0007] A mineral pigment grinding device for art painting includes a pestle body, which comprises a grinding element, a connecting part, and a handle. The connecting part includes a left shell and a right shell, which have the same structure and are fixed by bolts. Each of the left and right shells has a pre-reserved placement chamber. A clamping groove adapted to the grinding element is provided in the left and right shells below the placement chamber. The handle is threaded to the connecting part at one end.

[0008] Furthermore, the grinding body includes a hemispherical portion, a frustum portion is fixedly connected to the top center of the hemispherical portion, and a ball head is fixedly connected to the side of the frustum portion away from the hemispherical portion. The shape of the clamping groove is adapted to the combination of the frustum portion and the ball head.

[0009] Furthermore, a battery compartment is installed inside the handle, a battery assembly is installed inside the battery compartment, and a control switch is also provided on the top of the inner surface of the handle;

[0010] The installation room is equipped with a vibrating rod, and the control switch is electrically connected to the battery assembly and the vibrating rod respectively.

[0011] Furthermore, the vibrating rod includes a housing and a vibration motor, and an eccentric wheel is fixedly connected to the end of the output shaft of the vibration motor.

[0012] Furthermore, a triangular-shaped rim ring is fixedly connected to the top of the hemispherical part near its outer edge, and a cutout adapted to the rim ring is provided on the inner surface of the bottom end of the handle part.

[0013] Working principle and beneficial effects: By clamping the grinding body inside the connecting part and removing the fixing bolts that fix the left and right housings, the grinding body can be removed for later replacement, solving the problem of grinding quality being affected by wear at the end of the grinding body and saving costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional exploded view of the present invention;

[0015] Figure 2 This utility model Figure 1 A perspective structural diagram.

[0016] In the diagram: 1. Grinding body; 11. Hemisphere; 12. Frustum; 13. Head; 2. Connecting part; 21. Left shell; 22. Right shell; 3. Handle; 4. Clamping groove; 5. Battery assembly; 6. Control switch; 7. Vibrating rod; 8. Surrounding ring. Detailed Implementation

[0017] The present invention can be better understood from the following embodiments.

[0018] The structures, proportions, and sizes shown in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, terms such as "upper," "lower," "front," "rear," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0019] like Figure 1-2 As shown, Example

[0020] A grinding device for mineral pigments used in art painting includes a pestle body, which comprises a grinding element 1, a connecting part 2, and a handle 3. The connecting part 2 includes a left housing 21 and a right housing 22, which are identical in structure and fixed together by bolts. Both the left and right housings have pre-drilled chambers. A clamping groove 4, adapted to the grinding element 1, is located below the chamber in both the left and right housings. The handle 3 is threaded to the connecting part 2 at one end. The left housing is disassembled and fixed by clamping the grinding element 1 within the connecting part 2. 21. The fixing bolts of the right housing 22 can remove the grinding body 1 for later replacement, solving the problem of grinding quality being affected by wear at the end of the grinding body 1 and saving costs. The specific structure of the grinding body 1 in the above technical solution is as follows: The grinding body 1 includes a hemispherical part 11, a frustum part 12 is fixedly connected to the top middle position of the hemispherical part 11, and a ball head 13 is fixedly connected to the side of the frustum part 12 away from the hemispherical part 11. The shape of the clamping groove 4 is adapted to the combination of the frustum part 12 and the ball head 13. The structure of the grinding body 1 facilitates the limiting and fixing after the left housing 21 and the right housing 22 are clamped.

[0021] To improve grinding efficiency and save physical effort from grinding with the pestle body, improvements are made to the above technical solution. A battery compartment is installed inside the handle 3, and a battery assembly 5 is installed inside the battery compartment. A control switch 6 is also installed on the top of the inner surface of the handle 3. A vibrating rod 7 is installed in the housing. The control switch 6 is electrically connected to the battery assembly 5 and the vibrating rod 7 respectively. The control switch 6 controls the vibrating rod 7 in the connecting part 3 to be energized and drive the pestle body to vibrate. When the pestle body presses on the pigment material, it can vibrate and grind itself, reducing the number of times the pigment material is manually struck and saving physical effort. The vibrating rod 7 includes a shell and a vibration motor. An eccentric wheel is fixedly connected to the end of the output shaft of the vibration motor.

[0022] In the above embodiment, a triangular-shaped rim ring 8 is fixedly connected to the top of the hemispherical part 11 near its outer edge. A cut that matches the rim ring 8 is opened on the inner surface of the bottom end of the handle part 3, so that the connection between the grinding body 1 and the connecting part 2 is tighter, reducing the amount of pigment powder entering the gap and affecting the subsequent clamping and fixing.

Claims

1. An artistic painting mineral pigment grinding device comprising a mortar pestle body, characterized by: The pestle body includes a grinding body (1), a connecting part (2) and a handle part (3). The connecting part (2) includes a left shell (21) and a right shell (22). The left shell (21) and the right shell (22) have the same structure and are fixed by bolts. The left shell (21) and the right shell (22) each have a reserved placement chamber. The left shell (21) and the right shell (22) are provided with a clamping groove (4) adapted to the grinding body (1) at the position below the placement chamber. The handle (3) is threadedly connected to the end of the connecting part (2) near the handle (3).

2. An artistic painting mineral pigment grinding device according to claim 1, characterized in that: The grinding body (1) includes a hemispherical part (11), a frustum part (12) is fixedly connected to the top middle position of the hemispherical part (11), and a ball head (13) is fixedly connected to the side of the frustum part (12) away from the hemispherical part (11). The shape of the clamping groove (4) is adapted to the combination of the frustum part (12) and the ball head (13).

3. The mineral paint grinding device for art drawing according to claim 1, characterized in that: The handle (3) is equipped with a battery compartment, and the battery compartment is equipped with a battery assembly (5). A control switch (6) is also provided on the top of the inner surface of the handle (3). The installation room is equipped with a vibrating rod (7), and the control switch (6) is electrically connected to the battery assembly (5) and the vibrating rod (7) respectively.

4. An artistic painting mineral pigment grinding device according to claim 3, characterized in that: The vibrating rod (7) includes a housing and a vibration motor, and an eccentric wheel is fixedly connected to the end of the output shaft of the vibration motor.

5. The mineral paint grinding device for art drawing according to claim 2, characterized in that: The top of the hemispherical part (11) is fixedly connected to a triangular-shaped rim ring (8) near its outer edge, and the inner surface of the bottom end of the handle part (3) is provided with a cut that matches the rim ring (8).