Electric stone mill capable of adjusting feeding rate
By introducing a threaded fit structure of an adjusting baffle and a push rod into the feeding hopper of an electric stone mill, the problem of relying on manual adjustment of feeding speed in the existing technology is solved, and precise control and convenient adjustment of feeding rate are achieved.
Patent Information
- Application Number
- CN202422712395.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-11-07
AI Technical Summary
Existing electric stone mills rely on the operator's feel and skill level when adjusting the feeding speed, making it difficult to control the adjustment accuracy and inconvenient to use.
A feeding hopper structure was designed, including a funnel section and a guide section. The guide section is provided with an adjustment port. The feeding channel can be precisely adjusted by adjusting the threaded engagement of the baffle and the push rod. The baffle is connected by a slide rail and a hinge. The number of rotations of the push rod controls the size of the feeding channel.
It enables precise control of the feeding rate, reduces reliance on the experience and feel of the staff, and improves the convenience and accuracy of adjustment.
Smart Images

Figure CN223861988U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of grain grinding devices, specifically relating to an electric stone mill that can adjust the feeding rate. Background Technology
[0002] Flour is an indispensable food in people's daily lives, and its demand is relatively large. However, with the improvement of living standards, people's requirements for the taste of flour are also increasing. Flour ground by traditional stone mills, due to its low-speed grinding and low-temperature processing, does not destroy the nutrients in wheat. It can retain the maximum amount of protein, gluten, carotene, carbohydrates, calcium, phosphorus, iron, vitamins B1 and B2, and other nutrients in wheat. Therefore, flour ground by traditional stone mills is very popular.
[0003] To improve production efficiency, many electric stone mills have been developed and are now in use. Existing technology discloses a patent application titled "Fully Automatic Stone Mill Flour Machine," application number 201410715564.3, which includes a stone mill body, a drive unit, and a flour collection device. It also includes an automatic feeding funnel that can adjust the feeding speed via a flow baffle. A discharge port is located at the bottom of the side wall of the automatic feeding funnel, and symmetrical slide rails are arranged on both sides of the discharge port. A flow baffle is movably installed within the slide rails, and the speed at which material enters the feeding hole can be controlled by adjusting the height of the flow baffle.
[0004] However, in the aforementioned prior art, the flow damper needs to be manually adjusted by the operator, and the adjustment accuracy depends on the operator's feel and skill level. Therefore, the adjustment amount is not easy to control, resulting in inconvenience in use. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an electric stone mill that can adjust the feeding rate, so as to solve the technical problem that the current electric stone mill relies on the operator's feel and skill level when adjusting the feeding speed, resulting in poor controllability.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows: an electric stone mill capable of adjusting the feeding rate, the electric stone mill comprising a grinding body, a drive motor, a discharge hopper, and a feeding hopper, the feeding hopper being fixedly connected to the top of the grinding body, the feeding hopper comprising a funnel portion that is larger at the top and smaller at the bottom, and a square cylindrical guide portion connected to the lower end of the funnel portion, one side wall of the guide portion being open to form an adjustment port, the top of the adjustment port being rotatably connected to an adjustment baffle capable of closing the adjustment port, the adjustment baffle rotating inwards towards the guide portion to adjust the size of the feeding channel within the guide portion; a slide rail is provided on the outer side of the adjustment baffle, a hinge is slidably connected within the slide rail, a push rod is rotatably connected to the hinge, the push rod passing laterally through an adjustment bracket extending downwards from the funnel portion, the push rod and the adjustment bracket being connected by a thread.
[0007] Preferably, the slide rail includes two parallel support plates, and the support plates are provided with a slide groove along their length.
[0008] Preferably, the hinge includes a connecting block and sliding shafts connected to both ends of the connecting block. The sliding shafts are slidably connected in the sliding groove and are rotatable relative to the slide rail.
[0009] Preferably, the connecting block and the push rod are rotatably connected by a bearing assembly.
[0010] Preferably, an operating wheel is vertically connected to the end of the push rod, and a handle is vertically connected to the operating wheel.
[0011] Preferably, a guide plate is provided on the inner side of the upper end of the adjustment port to block the connection between the adjustment baffle and the adjustment port.
[0012] Preferably, the upper surface of the guide plate is inclined to reduce the bouncing of the grain during its descent.
[0013] The beneficial effects of adopting the technical solution of this utility model are as follows:
[0014] The grinding body of this utility model is equipped with a feeding hopper at the upper end that can adjust the feeding flow rate, which facilitates the control of the feeding speed and makes it easy to adjust according to actual production needs. A square cylindrical guide section is installed at the lower end of the feeding hopper. An adjustment baffle is rotatably connected to an open adjustment port on one side of the guide section. A slide rail is installed on the outer wall of the adjustment baffle, and a hinge is slidably connected inside the slide rail. The hinge is rotatably connected to a push rod, which is threadedly connected to an adjustment bracket that extends downward from the funnel section at the upper end of the feeding hopper. Rotating the push rod and the adjustment bracket through the threaded engagement causes the push rod to move horizontally. When the push rod moves toward the adjustment baffle, it drives the hinge to slide within the slide rail and pushes the adjustment baffle upward, reducing the material discharge channel of the guide section. When the push rod moves away from the adjustment baffle, it drives the adjustment baffle to rotate downward, increasing the material discharge channel of the guide section, thereby achieving the adjustment of the feeding rate. By driving the push rod through the threaded engagement and rotating it a different number of times, the feeding flow rate can be precisely adjusted. This is not dependent on the experience and feel of the operator, making the adjustment more convenient and precise. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of an embodiment of an electric stone mill capable of adjusting the feeding rate;
[0016] Figure 2 A schematic cross-sectional view of the feed hopper of an embodiment of an electric stone mill capable of adjusting the feeding rate;
[0017] Figure 3 for Figure 2 Enlarged view of a portion of the image;
[0018] Figure 4 This is a right-side view of the feed hopper of an embodiment of an electric stone mill capable of adjusting the feeding rate.
[0019] in, Figure 1-4 In the middle, 1-grinding body, 2-drive motor, 3-feeding hopper, 31-funnel section, 311-adjusting bracket, 312-guide plate, 32-guide section, 33-adjusting baffle, 34-slide rail, 341-support plate, 342-slide groove, 35-push rod, 351-operating wheel, 352-handle, 36-hinge, 361-slide shaft, 362-connecting block, 4-discharge hopper. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments, and do not limit the scope of the present utility model.
[0021] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] The specific implementation method is as follows:
[0024] Example 1, as Figure 1-4 As shown, an electric stone mill with adjustable feeding rate includes a grinding body 1, a drive motor 2, a discharge hopper 4, and a feed hopper 3. Two closely fitted grinding discs are installed inside the grinding body 1 for grinding wheat, one of which is driven by the drive motor 2 located at the bottom of the grinding body 1. The discharge hopper 4 is located at the lower end of the grinding body 1 for discharging the ground powder.
[0025] A feeding hopper 3 is located at the top of the milling body 1 and is used to feed materials into the milling body 1. The feeding hopper 3 includes a funnel section 31 at the top and a guide section 32 connected to the lower end of the funnel section 31. The funnel section 31 is wider at the top and narrower at the bottom to facilitate filling. The guide section 32 is a square cylindrical shape to guide and concentrate wheat. An adjustment port is formed on the right side of the guide section 32, and an adjustment baffle 33 is rotatably connected to the top of the adjustment port. A vertically extending slide rail 34 is provided on the outer wall of the adjustment baffle 33. A hinge 36 is slidably connected in the slide rail 34. The hinge 36 can not only slide in the slide rail 34, but also rotate relative to the slide rail 34. A push rod 35 is rotatably connected to the hinge 36. The push rod 35 passes laterally through an adjustment bracket 311 that extends downward from the side wall of the funnel section 31. The push rod 35 and the adjustment bracket 311 are threaded together. Based on this, the rotating push rod 35 moves laterally under the action of the threaded engagement. When the push rod 35 moves toward the adjusting baffle 33, the hinge 36 slides downward along the slide rail 34, causing the adjusting baffle 33 to flip upward, and the material feeding channel in the guide part 32 decreases. When the push rod 35 moves away from the adjusting baffle 33, the hinge 36 slides upward along the slide rail 34, causing the adjusting baffle 33 to rotate downward, and the material feeding channel in the guide part 32 becomes larger, thereby realizing the adjustment of the feeding flow rate.
[0026] In this embodiment, an electric stone mill with adjustable feeding rate is used. Wheat is fed into the feeding hopper 3 and flows through the hopper 3 into the milling body 1 for grinding to produce flour. According to production needs, the size of the feeding channel in the guide section 32 is adjusted by rotating the push rod 35 to push against the adjusting baffle 33, thereby adjusting the rotation angle of the adjusting baffle 33 and thus adjusting the feeding rate. The push rod 35 is threaded into the adjusting bracket 311, and the push rod 35 is connected to the slide rail on the adjusting baffle 33 via a hinge 36. Rotating the push rod 35 adjusts the angle of the adjusting baffle 33. This makes the adjustment process dependent on the number of rotations of the push rod 35, rather than on the operator's experience and feel, ensuring the accuracy and convenience of the adjustment.
[0027] Furthermore, the slide rail 34 includes two parallel support plates 341, with grooves 342 provided along its length on each support plate 341 to facilitate the connection of the hinge member 36. Correspondingly, the hinge member 36 includes a connecting block 362 and two sliding shafts 361; two sliding shafts 361 are provided, symmetrically connected to both ends of the connecting block 362, and the two sliding shafts 361 are respectively connected to the grooves 342 on the two support plates 341, realizing a sliding connection between the hinge member 36 and the slide rail 34. The cooperation between the sliding shafts 361 and the grooves 342 facilitates the rotation of the hinge member 36 relative to the slide rail 34. Based on this, the slide rail 34 and the hinge member 36 have a simpler structure and are easier to connect.
[0028] Furthermore, the connecting block 362 and the push rod 35 are connected by a bearing assembly (not shown in the figure), so that the push rod 35 and the connecting block 362 can rotate relative to each other.
[0029] Furthermore, an operating wheel 351 is vertically connected to the end of the push rod 35, and a handle 352 is vertically connected to the operating wheel 351 to facilitate the operator's gripping operation.
[0030] Furthermore, a guide plate 312 is provided on the upper inner side of the adjustment port. The guide plate 312 blocks the rotational connection between the adjustment baffle 33 and the adjustment port to prevent wheat from causing blockage at the rotational connection.
[0031] Furthermore, the upper surface of the guide plate 312 is inclined, so that the wheat falls down the inclined surface after falling from the funnel part 31, reducing the jumping when the wheat falls on the guide plate 312 and reducing splashing.
[0032] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.
Claims
1. An electric stone mill capable of adjusting the feeding rate, the electric stone mill comprising a grinding body, a drive motor, a discharge hopper, and a feeding hopper, wherein the feeding hopper is fixedly connected to the top of the grinding body, characterized in that, The feeding hopper includes a funnel-shaped part that is wider at the top and narrower at the bottom, and a square cylindrical guide part connected to the lower end of the funnel-shaped part. One side wall of the guide part is open to form an adjustment port. An adjustment baffle that can close the adjustment port is rotatably connected to the top of the adjustment port. The adjustment baffle rotates inward to adjust the size of the feeding channel in the guide part. A slide rail is provided on the outside of the adjustment baffle. A hinge is slidably connected in the slide rail. A push rod is rotatably connected to the hinge. The push rod passes laterally through an adjustment bracket that extends downward from the funnel-shaped part. The push rod and the adjustment bracket are connected by a thread.
2. The electric stone mill capable of adjusting the feeding rate according to claim 1, characterized in that, The slide rail includes two parallel support plates, and the support plates are provided with grooves along their length.
3. The electric stone mill capable of adjusting the feeding rate according to claim 2, characterized in that, The hinge includes a connecting block and sliding shafts connected to both ends of the connecting block. The sliding shafts are slidably connected in the sliding groove and can rotate relative to the slide rail.
4. An electric stone mill capable of adjusting the feeding rate according to claim 3, characterized in that, The connecting block and the push rod are rotatably connected by a bearing assembly.
5. An electric stone mill capable of adjusting the feeding rate according to claim 4, characterized in that, An operating wheel is vertically connected to the end of the push rod, and a handle is vertically connected to the operating wheel.
6. An electric stone mill capable of adjusting the feeding rate according to any one of claims 1-5, characterized in that, A guide plate is provided on the inner side of the upper end of the adjustment port to block the connection between the adjustment baffle and the adjustment port.
7. An electric stone mill capable of adjusting the feeding rate according to claim 6, characterized in that, The upper surface of the guide plate is inclined to reduce the bouncing of the grain during its descent.
Citation Information
Patent Citations
Full-automatic stone flour mill
CN104437739B