Flour pre-grinding device

Through innovative design of the pre-grinding component and sealing component, the problem of unsatisfactory grinding effect of existing flour pre-grinding devices has been solved, thereby improving the grinding effect of flour, reducing flour waste, and enhancing the convenience of flour processing.

CN224252945UActive Publication Date: 2026-05-19NINGXIA YIJUN FLOUR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA YIJUN FLOUR CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The existing flour pre-grinding equipment has an unsatisfactory grinding effect, which makes it easy for fine flour particles to be suspended and wasted, and it is also inconvenient to clean.

Method used

The design employs a combination of pre-grinding and sealing components. The pre-grinding component includes an electric push rod, an inclined plate, a perforated plate, and a grinding roller to achieve secondary grinding of flour. The sealing component controls the opening and closing of the feed hopper through a sliding plate, a sealing plate, and a forward and reverse motor to prevent flour from suspending.

Benefits of technology

It improves the grinding effect of flour, reduces the waste of fine particles and the difficulty of cleaning, and enhances the convenience of flour processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of flour processing, and particularly relates to a flour pre-grinding device which comprises a pre-grinding box, supporting legs are arranged on the pre-grinding box, an observation window is arranged on the pre-grinding box, feeding hoppers are arranged on the two sides of the pre-grinding box, a sealing assembly is arranged on the upper portion of the pre-grinding box, and a pre-grinding assembly is arranged in the pre-grinding box. And the pre-grinding assembly comprises two electric push rods fixedly installed on the top wall of an inner cavity of the pre-grinding box, a pressing plate is jointly installed at the bottoms of the two electric push rods, and inclined plates are fixedly installed on the two side walls of the inner cavity of the pre-grinding box. Flour is injected into the pre-grinding box through the feeding hopper, secondary pre-grinding work can be conducted on the flour through the pre-grinding assembly, and the grinding effect is improved; and through the arrangement of the sealing assembly, the two feeding hoppers can be shielded, and the problems that after flour is fed, due to the fact that particles of the flour are very fine and are prone to suspending in air, the flour is wasted, and cleaning is inconvenient are solved.
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Description

Technical Field

[0001] This utility model relates to the field of flour processing technology, specifically to a flour pre-grinding device. Background Technology

[0002] Flour processing requires pre-grinding, which plays an important role in flour processing. Its main purpose is to improve the hygiene standards and quality of flour. Currently, existing flour pre-grinding devices usually use a single grinding method, which results in less than ideal grinding effects and is not convenient for subsequent processing. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the prior art, the present invention provides a flour pre-grinding device, which solves the problems mentioned in the background art.

[0005] (ii) Technical solution.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A flour pre-grinding device includes a pre-grinding box, a support leg provided on the pre-grinding box, an observation window provided on the pre-grinding box, feeding hoppers provided on both sides of the pre-grinding box, a sealing component provided on the upper part of the pre-grinding box, and a pre-grinding component provided inside the pre-grinding box.

[0008] The pre-grinding assembly includes two electric push rods fixedly installed on the top wall of the pre-grinding chamber cavity. A pressure plate is installed at the bottom of the two electric push rods. Inclined plates are fixedly installed on both sides of the pre-grinding chamber cavity. A perforated plate is installed between the two inclined plates. Two crushing rollers are rotatably connected inside the pre-grinding chamber. Two drive motors are fixedly installed on one side of the pre-grinding chamber. The output shaft of the drive motor is fixedly connected to the crushing rollers.

[0009] Furthermore, the crushing roller is located directly below the perforated plate.

[0010] Furthermore, the sealing assembly includes a limiting seat fixedly installed on the upper part of the pre-grinding box. Two sliding plates are slidably connected to the limiting seat. Two extension plates are fixedly installed on the opposite sides of the two sliding plates. A sealing plate is installed at the bottom of the two extension plates on the same side. A forward and reverse motor is fixedly installed on one side of the limiting seat. A winding shaft is rotatably connected inside the limiting seat. A spacer plate is fixedly installed in the middle of the outer wall of the winding shaft. Connecting ropes are connected to both sides of the outer wall of the winding shaft. The connecting ropes are fixedly connected to the sliding plates. Two springs are connected between the two sliding plates and the limiting seat.

[0011] Furthermore, the limiting seat has two through holes that match the connecting rope.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, the present invention provides a flour pre-grinding device, which has the following beneficial effects:

[0014] This invention allows flour to be injected into a pre-grinding chamber through a feeding hopper. The pre-grinding component enables secondary pre-grinding of the flour, improving the grinding effect and facilitating flour processing. Furthermore, the sealing component can cover the two feeding hoppers, preventing flour waste and cleaning difficulties caused by the fine particles of flour easily suspending in the air after feeding. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the pre-grinding box of this utility model;

[0017] Figure 3 This is a schematic diagram of the sealing assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the perforated plate of this utility model.

[0019] In the diagram: 1. Pre-grinding box; 2. Support leg; 3. Observation window; 4. Sealing assembly; 41. Limit seat; 42. Slide plate; 43. Extension plate; 44. Sealing plate; 45. Spring; 46. Rewinding shaft; 47. Spacer plate; 48. Forward and reverse motors; 49. Connecting rope; 5. Feed hopper; 6. Pre-grinding assembly; 61. Electric push rod; 62. Pressure plate; 63. Inclined plate; 64. Hollow plate; 65. Crushing roller; 66. Drive motor. Detailed Implementation

[0020] 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.

[0021] Example

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, an embodiment of the present invention provides a flour pre-grinding device, including a pre-grinding box 1, a support leg 2, an observation window 3, feeding hoppers 5 on both sides of the pre-grinding box 1, a sealing component 4 on the upper part of the pre-grinding box 1, and a pre-grinding component 6 inside the pre-grinding box 1. Flour is injected into the pre-grinding box 1 through the feeding hoppers 5. The pre-grinding component 6 can perform a secondary pre-grinding of the flour, improving the grinding effect and facilitating flour processing. The sealing component 4 can cover the two feeding hoppers 5, preventing flour waste and cleaning difficulties caused by the very fine particles of flour easily suspending in the air after feeding.

[0023] The pre-grinding assembly 6 includes two electric push rods 61 fixedly installed on the top wall of the inner cavity of the pre-grinding box 1. A pressure plate 62 is installed at the bottom of the two electric push rods 61. Inclined plates 63 are fixedly installed on both sides of the inner cavity of the pre-grinding box 1. A perforated plate 64 is installed between the two inclined plates 63. Two crushing rollers 65 are rotatably connected inside the pre-grinding box 1. Two drive motors 66 are fixedly installed on one side of the pre-grinding box 1. The output shaft of the drive motor 66 is fixedly connected to the crushing rollers 65. After the flour is injected into the device, it falls onto the inclined plates 63 and the perforated plate 64. Small particles fall through the perforated plate 64, while large particles of flour are crushed by the pressure plate 62 driven by the electric push rods 61. The flour then falls onto the crushing rollers 65 and is driven by the drive motors 66 to rotate the crushing rollers 65 for secondary grinding, thereby improving the grinding effect.

[0024] like Figure 2 As shown, in some embodiments, the crushing roller 65 is located directly below the perforated plate 64; this facilitates secondary crushing.

[0025] like Figure 3As shown, in some embodiments, the sealing assembly 4 includes a limiting seat 41 fixedly installed on the upper part of the pre-grinding box 1. Two sliding plates 42 are slidably connected to the limiting seat 41. Two extension plates 43 are fixedly installed on the opposite sides of the two sliding plates 42. A sealing plate 44 is installed at the bottom of the two extension plates 43 on the same side. A forward and reverse motor 48 is fixedly installed on one side of the limiting seat 41. A winding shaft 46 is rotatably connected inside the limiting seat 41. A spacer plate 47 is fixedly installed in the middle of the outer wall of the winding shaft 46. Connecting ropes 49 are connected to both sides of the outer wall of the winding shaft 46. The connecting ropes 49 and the sliding plates 42 are connected to the sealing assembly 43. 2. Fixed connection: Both slide plates 42 are connected to the limit seat 41 by two springs 45. When feeding is required, the forward and reverse motors 48 drive the winding shaft 46 to rotate, winding the two connecting ropes 49, which can pull the slide plates 42 to slide on the limit seat 41. At this time, the springs 45 are squeezed, and the extension plate 43 drives the two sealing plates 44 to move closer to each other. At this time, the two feed hoppers 5 open, and feeding can be carried out. After feeding, as the forward and reverse motors 48 rotate in the opposite direction, as the springs 45 reset, the sealing plates 44 cover the feed hoppers 5 again to prevent the flour from floating out.

[0026] like Figure 3 As shown, in some embodiments, the limiting seat 41 has two through holes that match the connecting rope 49, which facilitates the winding of the connecting rope 49.

[0027] The wiring diagrams of the drive motor 66, the forward and reverse motor 48, and the electric push rod 61 in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the drive motor 66, the forward and reverse motor 48, and the electric push rod 61 will not be explained in detail.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flour pre-grinding device, comprising a pre-grinding chamber (1), characterized in that: The pre-grinding box (1) is provided with a support leg (2), the pre-grinding box (1) is provided with an observation window (3), the pre-grinding box (1) is provided with a feed hopper (5) on both sides, the pre-grinding box (1) is provided with a sealing component (4) on the upper part, and the pre-grinding box (1) is provided with a pre-grinding component (6) inside. The pre-grinding assembly (6) includes two electric push rods (61) fixedly installed on the top wall of the inner cavity of the pre-grinding box (1). The bottom of the two electric push rods (61) is jointly installed with a pressure plate (62). Inclined plates (63) are fixedly installed on both sides of the inner cavity of the pre-grinding box (1). A hollow plate (64) is installed between the two inclined plates (63). Two crushing rollers (65) are rotatably connected inside the pre-grinding box (1). Two drive motors (66) are fixedly installed on one side of the pre-grinding box (1). The output shaft of the drive motor (66) is fixedly connected to the crushing roller (65).

2. The flour pre-grinding device according to claim 1, characterized in that: The crushing roller (65) is located directly below the perforated plate (64).

3. The flour pre-grinding device according to claim 1, characterized in that: The sealing assembly (4) includes a limiting seat (41) fixedly installed on the upper part of the pre-grinding box (1). Two sliding plates (42) are slidably connected on the limiting seat (41). Two extension plates (43) are fixedly installed on the opposite sides of the two sliding plates (42). A sealing plate (44) is installed on the bottom of the two extension plates (43) on the same side. A forward and reverse motor (48) is fixedly installed on one side of the limiting seat (41). A winding shaft (46) is rotatably connected inside the limiting seat (41). A spacer plate (47) is fixedly installed in the middle of the outer wall of the winding shaft (46). Connecting ropes (49) are connected to both sides of the outer wall of the winding shaft (46). The connecting ropes (49) are fixedly connected to the sliding plates (42). Two springs (45) are connected between the two sliding plates (42) and the limiting seat (41).

4. The flour pre-grinding device according to claim 3, characterized in that: The limiting seat (41) has two through holes that match the connecting rope (49).