Stone removing machine for flour processing

By designing a destoner with an adjustable discharge opening size component and spiral blades, the problems of uncontrollable discharge flow and easy material blockage in traditional destoners have been solved, achieving flexible adjustment and stable feeding, and improving equipment efficiency.

CN224253527UActive 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

Traditional gravity destoners have uncontrollable feed flow, are prone to clogging, have low equipment efficiency, and cannot adjust the feed opening size according to product type.

Method used

A destoner was designed, comprising a feeding port, a feeding structure, a discharge opening size adjustment component, and a spiral blade. The discharge opening size is adjusted by a worm gear transmission system driven by a motor, and the spiral blade is used to push the material down to avoid blockage.

Benefits of technology

It enables flexible adjustment of the feed opening size, improves the stability of feeding and equipment efficiency, avoids material blockage, and adapts to the processing needs of different products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stoning machine for flour processing, which comprises a specific gravity stoning machine, a feeding port is arranged at the upper end of the specific gravity stoning machine, and a feeding structure is arranged on the upper portion of the feeding port. And the feeding structure comprises a straight barrel section, a transition section, a material guide opening, a discharging opening size adjusting assembly, a supporting plate, a first motor, a first rotating shaft, a spiral blade and a material storage section, a support is fixedly installed between the outer wall of the straight barrel section and the outer surface of the upper end of the specific gravity stoner, and the discharging opening size adjusting assembly is installed at the lower end of the straight barrel section. According to the stoning machine for flour processing, the discharging opening size adjusting assembly is arranged, the size of a discharging opening in the straight barrel section can be conveniently adjusted according to needs, the applicability is improved, a first motor runs to drive a spiral blade to rotate, the spiral blade pushes materials in the material storage section to descend, and the discharging opening size adjusting assembly is used for adjusting the size of the discharging opening in the straight barrel section. And the feeding stability is improved, and the situation of material blockage is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of flour processing technology, specifically to a destoner for flour processing. Background Technology

[0002] In flour processing, removing impurities such as stones and metals from raw materials is a crucial step in ensuring product quality. Gravity destoners, a commonly used cleaning device, utilize the difference in specific gravity between materials and impurities, employing vibration and airflow to effectively separate stones from lighter impurities. They are widely used in the pre-processing stages of grains such as wheat and corn.

[0003] Traditional gravity destoners typically feed materials into the feed inlet manually or using simple conveying devices, but this method has the following problems:

[0004] 1. Uncontrollable feed flow: When the flow is too large, the stones are not completely separated; when the flow is too small, the equipment efficiency is reduced and the size of the feed opening cannot be adjusted according to the type of product.

[0005] 2. Easy to clog: During the conveying process, the material is prone to accumulating at the feeding port due to poor flowability or humidity.

[0006] Therefore, we propose a destoner for flour processing. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this utility model provides a destoner for flour processing, which offers advantages such as easy adjustment of the size of the discharge port in the hopper, stable feeding, and resistance to clogging, effectively solving the problems in the background technology.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a destoner for flour processing, comprising a gravity destoner, wherein the upper end of the gravity destoner is provided with a feeding port, and the upper part of the feeding port is provided with a feeding structure, the feeding structure comprising a straight cylindrical section, a transition section, a guide port, a discharge opening size adjustment component, a support plate, a first motor, a first rotating shaft, a spiral blade and a storage section, and a bracket is fixedly installed between the outer wall of the straight cylindrical section and the upper outer surface of the gravity destoner, the discharge opening size adjustment component is installed at the lower end of the straight cylindrical section, the discharge opening size adjustment component comprising a baffle disc, an arc chamfer, a driven shaft, a transmission box, a second motor, a worm, a worm wheel and a second rotating shaft, and the baffle disc is located inside the straight cylindrical section, the arc chamfer is formed on the outer wall of the baffle disc.

[0011] Preferably, the feed inlet is fixed to the lower outer surface of the straight section, and the transition section is fixed between the upper outer surface of the straight section and the lower outer surface of the storage section.

[0012] Preferably, the support plate is fixed to the middle of the upper outer surface of the storage section, the first motor is fixed to the middle of the upper outer surface of the support plate, the first rotating shaft is connected to the lower outer surface of the first motor, the spiral blade is fixed to the outer wall of the first rotating shaft, and the lower ends of the first rotating shaft and the spiral blade extend into the middle of the inner cavity of the straight section.

[0013] Preferably, a bearing is provided between the first rotating shaft and the support plate, the first rotating shaft is rotatably connected to the support plate through the bearing, a coupling is provided between the first rotating shaft and the first motor, and the upper outer surface of the first rotating shaft is fixedly connected to the lower outer surface of the output shaft of the first motor through the coupling.

[0014] Preferably, the transmission box is fixed to the lower part of the outer surface of one side of the straight section, the worm and the worm wheel are both located inside the transmission box, the second motor is fixed to the lower part of the outer surface of one side of the transmission box, the worm is connected to one end of the second motor, the worm wheel is located on the upper outer surface of the worm and is fixed to the outer wall of one end of the second rotating shaft, the outer surface of one end of the second rotating shaft is fixedly connected to the middle part of the outer surface of one side of the baffle, and the driven shaft is fixed to the middle part of the outer surface of the other side of the baffle.

[0015] Preferably, the upper outer surface of the worm gear meshes with the lower outer surface of the worm wheel. A coupling is provided between the worm gear and the second motor. One end of the outer surface of the worm gear is fixedly connected to one end of the outer surface of the output shaft of the second motor through the coupling. Sealed bearings are provided between the worm gear, the second rotating shaft, and the transmission box. The worm gear and the second rotating shaft are rotatably connected to the transmission box through sealed bearings. Sealed bearings are provided between the second rotating shaft, the driven shaft, and the straight section. The second rotating shaft and the driven shaft are rotatably connected to the straight section through sealed bearings.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a destoner for flour processing, which has the following beneficial effects:

[0018] 1. This destoner for flour processing is equipped with a feeding opening size adjustment component, which facilitates the adjustment of the feeding opening size in the straight cylinder section, allowing for adjustment as needed and improving applicability.

[0019] 2. This destoner for flour processing uses a first motor to drive a spiral blade to rotate. The spiral blade pushes the material in the storage section downward, improving the stability of feeding and avoiding material blockage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a destoner for flour processing according to the present invention.

[0021] Figure 2 This is a schematic diagram of the feeding structure in a destoner for flour processing according to the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of a feeding opening size adjustment component in a destoner for flour processing according to the present invention.

[0023] Figure 4 This is a side cross-sectional view of the transmission box in a destoner for flour processing according to the present invention.

[0024] In the diagram: 1. Gravity destoner; 2. Feed port; 3. Support frame; 4. Feeding structure; 5. Straight section; 6. Transition section; 7. Guide port; 8. Discharge opening size adjustment component; 9. Support plate; 10. First motor; 11. First rotating shaft; 12. Spiral blade; 13. Material stop disc; 14. Chamfered corner; 15. Driven shaft; 16. Transmission box; 17. Second motor; 18. Worm gear; 19. Worm wheel; 20. Second rotating shaft; 21. Storage section. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] This embodiment is a destoner for flour processing.

[0027] like Figure 1-4 As shown, the device includes a gravity destoner 1. The upper end of the gravity destoner 1 is provided with a feeding port 2. The upper part of the feeding port 2 is provided with a feeding structure 4. The feeding structure 4 includes a straight cylindrical section 5, a transition section 6, a guide port 7, a discharge opening size adjustment component 8, a support plate 9, a first motor 10, a first rotating shaft 11, a spiral blade 12, and a storage section 21. A bracket 3 is fixedly installed between the outer wall of the straight cylindrical section 5 and the upper outer surface of the gravity destoner 1. The discharge opening size adjustment component 8 is installed at the lower end of the straight cylindrical section 5. The discharge opening size adjustment component 8 includes a baffle disc 13, an arc chamfer 14, a driven shaft 15, a transmission box 16, a second motor 17, a worm gear 18, a worm wheel 19, and a second rotating shaft 20. The baffle disc 13 is located inside the straight cylindrical section 5, and the arc chamfer 14 is formed on the outer wall of the baffle disc 13.

[0028] The feed inlet 7 is fixed to the lower outer surface of the straight section 5, and the transition section 6 is fixed between the upper outer surface of the straight section 5 and the lower outer surface of the storage section 21. The support plate 9 is fixed to the middle of the upper outer surface of the storage section 21, the first motor 10 is fixed to the middle of the upper outer surface of the support plate 9, the first rotating shaft 11 is connected to the lower outer surface of the first motor 10, and the spiral blade 12 is fixed to the outer wall of the first rotating shaft 11. The lower ends of the first rotating shaft 11 and the spiral blade 12 extend into the inner cavity of the straight section 5. In the middle section; a bearing is provided between the first rotating shaft 11 and the support plate 9, and the first rotating shaft 11 is rotatably connected to the support plate 9 through the bearing. A coupling is provided between the first rotating shaft 11 and the first motor 10, and the upper outer surface of the first rotating shaft 11 is fixedly connected to the lower outer surface of the output shaft of the first motor 10 through the coupling; the transmission box 16 is fixed to the lower part of the outer surface of one side of the straight section 5, and the worm 18 and worm wheel 19 are both located inside the transmission box 16. The second motor 17 is fixed to the transmission box. On the lower part of one side of the outer surface of 16, the worm 18 is connected to one end of the second motor 17, and the worm wheel 19 is located on the upper outer surface of the worm 18 and is fixed to the outer wall of one end of the second rotating shaft 20. The outer surface of one end of the second rotating shaft 20 is fixedly connected to the middle of one side of the outer surface of the stop disc 13, and the driven shaft 15 is fixed to the middle of the other side of the outer surface of the stop disc 13. The upper outer surface of the worm 18 meshes with the lower outer surface of the worm wheel 19, and there is a connection between the worm 18 and the second motor 17. A coupling is provided, and one end of the outer surface of the worm gear 18 is fixedly connected to one end of the outer surface of the output shaft of the second motor 17 through the coupling. Sealed bearings are provided between the worm gear 18, the second rotating shaft 20 and the transmission box 16. The worm gear 18 and the second rotating shaft 20 are rotatably connected to the transmission box 16 through the sealed bearings. Sealed bearings are provided between the second rotating shaft 20, the driven shaft 15 and the straight section 5. The second rotating shaft 20 and the driven shaft 15 are rotatably connected to the straight section 5 through the sealed bearings.

[0029] It should be noted that this utility model is a destoner for flour processing. The gravity destoner 1 and the feeding port 2 described in this article are both existing technologies and can be effectively known to those skilled in the art. Further details will not be provided. The feeding structure 4 places the material inside the storage section 21. The discharge opening size adjustment component 8 is driven by the second motor 17 to rotate the worm 18. The worm 18 drives the second rotating shaft 20 to rotate via the worm wheel 19. The second rotating shaft 20 drives the baffle disc 13 to rotate. The rotation of the baffle disc 13 controls the size of the discharge opening in the straight section 5 and the feeding speed. During discharge, the first motor 10 drives the first rotating shaft 11 to rotate. The first rotating shaft 11 drives the spiral blade 12 to rotate. The spiral blade 12 pushes the material inside the storage section 21 downward, improving the stability of the feeding and preventing blockage.

[0030] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A destoner for flour processing, comprising a gravity destoner (1), wherein the upper end of the gravity destoner (1) is provided with a feeding port (2), characterized in that: The upper part of the feeding port (2) is provided with a feeding structure (4), which includes a straight section (5), a transition section (6), a guide port (7), a discharge opening size adjustment component (8), a support plate (9), a first motor (10), a first rotating shaft (11), a spiral blade (12), and a storage section (21). A bracket (3) is fixedly installed between the outer wall of the straight section (5) and the upper outer surface of the gravity destoner (1). The discharge opening size adjustment component (8) is installed at the lower end of the straight section (5). The discharge opening size adjustment component (8) includes a baffle disc (13), an arc chamfer (14), a driven shaft (15), a transmission box (16), a second motor (17), a worm (18), a worm wheel (19), and a second rotating shaft (20). The baffle disc (13) is located inside the straight section (5), and the arc chamfer (14) is opened on the outer wall of the baffle disc (13).

2. A destoner for flour processing according to claim 1, characterized in that: The feed inlet (7) is fixed to the lower outer surface of the straight section (5), and the transition section (6) is fixed between the upper outer surface of the straight section (5) and the lower outer surface of the storage section (21).

3. A destoner for flour processing according to claim 2, characterized in that: The support plate (9) is fixed in the middle of the upper outer surface of the storage section (21), the first motor (10) is fixed in the middle of the upper outer surface of the support plate (9), the first rotating shaft (11) is connected to the lower outer surface of the first motor (10), the spiral blade (12) is fixed to the outer wall of the first rotating shaft (11), and the lower ends of the first rotating shaft (11) and the spiral blade (12) extend into the middle of the inner cavity of the straight section (5).

4. A destoner for flour processing according to claim 3, characterized in that: A bearing is provided between the first rotating shaft (11) and the support plate (9). The first rotating shaft (11) is rotatably connected to the support plate (9) through the bearing. A coupling is provided between the first rotating shaft (11) and the first motor (10). The upper outer surface of the first rotating shaft (11) is fixedly connected to the lower outer surface of the output shaft of the first motor (10) through the coupling.

5. A destoner for flour processing according to claim 4, characterized in that: The transmission box (16) is fixed to the lower part of the outer surface of one side of the straight section (5). The worm (18) and worm wheel (19) are both located inside the transmission box (16). The second motor (17) is fixed to the lower part of the outer surface of one side of the transmission box (16). The worm (18) is connected to one end of the second motor (17). The worm wheel (19) is located on the upper outer surface of the worm (18) and is fixed to the outer wall of one end of the second rotating shaft (20). One end of the outer surface of the second rotating shaft (20) is fixedly connected to the middle part of the outer surface of one side of the baffle disc (13). The driven shaft (15) is fixed to the middle part of the outer surface of the other side of the baffle disc (13).

6. A destoner for flour processing according to claim 5, characterized in that: The upper outer surface of the worm (18) meshes with the lower outer surface of the worm wheel (19). A coupling is provided between the worm (18) and the second motor (17). One end of the outer surface of the worm (18) is fixedly connected to one end of the outer surface of the output shaft of the second motor (17) through the coupling. Sealed bearings are provided between the worm (18), the second rotating shaft (20), and the transmission box (16). The worm (18) and the second rotating shaft (20) are rotatably connected to the transmission box (16) through the sealed bearings. Sealed bearings are provided between the second rotating shaft (20), the driven shaft (15), and the straight section (5). The second rotating shaft (20) and the driven shaft (15) are rotatably connected to the straight section (5) through the sealed bearings.