Vacuum rice suction box for rice husking machine
By setting polishing strips in the inlet channel of the vacuum rice-absorbing box, using the gravity and negative pressure of the grains themselves to polish them in the spiral channel, the problem of poor polishing effect of grains in the vacuum rice-absorbing box is solved, and efficient polishing is achieved , reducing equipment costs and energy consumption.
Patent Information
- Application Number
- CN202420752461.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-11
AI Technical Summary
The existing vacuum rice sucking box affects the appearance of the grain due to the presence of dust and grain debris when unloading the grain, and requires additional polishing equipment to be installed to increase the equipment cost.
A vacuum rice suction box including box body, rice inlet, air suction port, rice unloading port, rice unloading port baffle and filter mesh was designed. Polishing strips are installed in the rice inlet channel to pass the combined force of the grain itself and the negative pressure. The grain is polished in the spiral feed channel, and the spiral line of the polishing strip forms an angle of 60°-90° with the inner wall of the feed channel. The spiral structure of the polishing strip allows the grain to fully friction and remove dust during movement.
It realizes that grain polishing can be performed without additional equipment in the vacuum rice-absorbing box, which reduces equipment costs, improves polishing efficiency, avoids broken rice problems, and has a simple structure and low energy consumption.
Smart Images
Figure CN222174162U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of rice milling equipment, and more specifically, to a vacuum rice suction box for a rice milling machine. Background Art
[0002] The vacuum rice suction box is a commonly used device in agricultural machinery and equipment. It can be used in the final link of grain rough processing equipment to hold processed grains and raise the height of the grains, making it easy to unload the grains into containers carried by buyers who come to purchase the rough-processed grains when needed. This facilitates grain loading and reduces the contact between the rough-processed grains and people. It is practical and hygienic.
[0003] Existing vacuum rice suction boxes are mostly designed only to increase the height of grains, without considering the characteristics of roughly processed grains. The unloaded grains are stained with a large amount of dust and bran fragments generated in the grain shelling and fine grinding processes, which seriously affect the appearance of the grains. For example, the Chinese utility model patent with announcement number CN218774849U discloses a hopper of a self-priming rice mill. In order to solve the problem that the grains are blocked by the airflow and the feeding port is blocked, the hopper is provided with a hopper composed of two hoppers. Through the segmented feeding and wind-blocking feeding mechanism, the rice sucked into the hopper falls in two stages. This patent is only designed to increase the height of grains, and there is no grain polishing effect.
[0004] In summary, the current vacuum rice suction box does not have a polishing component, and an additional set of polishing equipment needs to be set up independently, which increases the equipment cost. Utility Model Content
[0005] To solve the problems existing in the existing vacuum rice suction box. The technical solution adopted in this application is a vacuum rice suction box for a rice mill, comprising: a box body, a rice inlet, an air suction port, a rice discharge port, a rice discharge port baffle and a filter screen, wherein the rice discharge port is arranged below the box body;
[0006] The rice inlet is connected to a rice inlet channel inside the box body, the rice inlet channel is spirally arranged along the inner wall of the box body, a polishing strip is provided in the rice inlet channel, the polishing strip is spirally arranged along the center line of the rice inlet channel, and both ends of the polishing strip are connected to the inner wall of the rice inlet channel.
[0007] Preferably, a box cover is arranged above the box body, an inner edge and an inner circle of the box cover are provided with elastic material, and an outer edge of the filter screen is embedded in the elastic material.
[0008] Preferably, the central axis of the spiral line of the rice inlet channel is colinear with the central axis of the box body, and the angle between the central axis of the spiral line of the rice inlet channel and the central axis of the spiral line of the polishing strip is 60°-90°.
[0009] Preferably, the length ratio of the spiral diameter of the polishing strip to the inner diameter of the inlet channel is 1:2-3.
[0010] Preferably, the inner wall of the rice inlet channel is made of resin material.
[0011] Preferably, the inner core of the polishing strip is metal, and the outer surface of the metal inner core is coated with resin material.
[0012] Preferably, a spring lock is provided between the box body and the box cover.
[0013] Preferably, the rice unloading port baffle is connected to the rice unloading port by a movable shaft, the movable shaft is connected to a rice unloading port switch control rod, and a counterweight block is arranged at one end of the rice unloading port switch control rod away from the movable shaft.
[0014] The beneficial effects of the utility model are:
[0015] 1. A rice feeding channel and polishing strips are set in the vacuum rice suction box to polish the grains entering the vacuum rice suction box. There is no need to set up additional grain polishing equipment, which reduces the equipment cost; there is no need to introduce external force to vibrate and polish the grains. The equipment has a simple structure and low energy consumption, and at the same time avoids the problem of broken rice;
[0016] 2. The grains are polished while being sucked into the vacuum rice suction box. The polishing efficiency is high. When the grains pass through the spiral feed channel, they flow in a laminar flow as a whole. The polishing strips in the feed channel break up the laminar flow of grains, causing the grains to move along the feed channel as they collide with each other, fully rubbing every surface of each grain. Then the dust is carried away by the grain flow and sucked into the suction pipe for discharge. This ensures that both the grains in the center of the grain flow and the grains near the pipe wall are fully polished, with excellent polishing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art:
[0018] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model in the main viewing direction;
[0020] Figure 3 This is a schematic diagram of the structure of an embodiment of the utility model from a side view;
[0021] Figure 4 This is a schematic diagram of the structure of the main viewing direction of the specific embodiment 1 of the utility model;
[0022] Figure 5 It is a structural schematic diagram of the main viewing direction of specific embodiment 2 of the utility model.
[0023] Explanation of the reference numerals: 1. box body; 2. box cover; 3. rice inlet; 4. air inlet; 5. rice unloading port; 6. rice unloading port baffle; 7. filter screen; 8. base; 9. rice receiving funnel; 10. rice inlet channel; 11. polishing strip; 12. elastic gasket; 13. counterweight; 14. rice unloading port switch control lever; 15. movable shaft; 16. spring lock. DETAILED DESCRIPTION
[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0025] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0026] A vacuum rice suction box for a rice milling machine provided in an embodiment of the present application is now described:
[0027] like Figure 1-2 As shown, the grains after rough processing such as rice milling enter the rice inlet channel 10 through the rice inlet port 3 arranged on the side of the box body 1. The rice inlet channel 10 is spirally arranged along the inner wall of the box body 1. The grains flow along the spiral line of the rice inlet channel 10 in the rice inlet channel 10. The power comes from the gravity of the grains themselves and the attraction of the negative pressure generated by the suction of the air suction port 4 arranged above the box body 1. The grains flow into the interior of the vacuum rice suction box body 1 through the rice inlet channel 10, fall on the rice discharge port 5 below the box body 1, and are blocked by the rice discharge port baffle 6 and begin to accumulate. The box body 1 of the vacuum rice suction box is installed on the base 8, and a rice receiving funnel 9 is provided at the position corresponding to the rice discharge port 5 at the bottom of the base 8.
[0028] In this state, since the force acting on the grains is mainly the combined force of negative pressure attraction and gravity, and the direction of the negative pressure attraction is tangent to the spiral line of the rice inlet channel 10, the grains have a relative movement tendency to move toward the outside of the spiral line of the rice inlet channel 10. However, since this force acts on each grain, and the density of the grains is relatively close and they are wrapped around each other, it is not enough to cause severe friction between the grains, and the overall movement state of the grain flow is similar, so the flow state of the grain flow is mainly laminar flow.
[0029] A polishing strip 11 is arranged in the rice inlet channel 10, and the polishing strip 11 is spirally arranged along the center line of the rice inlet channel 10, and its two ends are connected to the inner wall of the rice inlet channel 10. As a result, the movement state of the grain flow inside the rice inlet channel 10 will change dramatically: 1. The grains directly colliding with the polishing strip 11 are thrown to the inner wall of the rice inlet channel 10 driven by the spiral structure of the polishing strip 11, and then collide with more grains flowing there; 2. Due to the throwing of the grains at the polishing strip 11, the grains originally moving inside the spiral structure of the polishing strip 11 are no longer entrained, but move tangentially relative to the spiral line of the rice inlet channel 10 under the action of negative pressure attraction, and then hit more grains flowing on the outer edge of the spiral line of the rice inlet channel 10. The gaps generated by the movement of the grains under these two movements will be quickly filled by the peripheral grains, and then drive more grains to collide with the spiral polishing strip 11.
[0030] The grains rub and collide with each other during this movement, and the dust and husk fragments originally adsorbed on the grains fall off, leave the rice inlet channel 10 under the influence of the grain flow, and are sucked away by the air suction port 4, while the grain particles cannot pass through the filter screen 7 and will not be mistakenly sucked in.
[0031] In order to increase the disorder of the grain flow and prevent the dust that falls off due to friction from being adsorbed on the grain again, a plurality of polishing strips 11 may be arranged in the rice inlet channel 10 .
[0032] Furthermore, if Figure 2-3 As shown, a box cover 2 is arranged above the box body 1, and an elastic gasket 12 is arranged on the inner edge of the box cover 2 and the inner circle of the box cover 2, and the outer edge of the filter 7 is embedded in the elastic gasket 12. The grains, dust and husks attracted by the negative pressure of the air inlet 4 will collide with the filter 7 in large quantities. The filter 7 is easy to deform under the collision due to its fine mesh texture, and the mesh of the deformed filter 7 will temporarily expand and jam the sundries that cannot pass through the mesh with its original size. The filter 7 is embedded in the elastic gasket 12, which can buffer the collision effect, avoid reducing the ventilation effect due to the jamming of a large number of sundries, and extend the service life of the filter 7.
[0033] Furthermore, if Figure 4-5 As shown, the central axis of the spiral line of the rice inlet channel 10 is colinear with the central axis of the box body 1, and the angle between the central axis of the spiral line of the rice inlet channel 10 and the central axis of the spiral line of the polishing strip 11 is 60°-90°. A smaller angle between the central axis of the spiral line of the rice inlet channel 10 and the central axis of the spiral line of the polishing strip 11 can make the grain flow smoother, but the angle should not be too small. If the angle is too small, the effect of the polishing strip 11 in causing the grain particles to collide with each other will be reduced. 60°-90° is a suitable angle for the polishing strip 11.
[0034] Furthermore, if Figure 4-5As shown, the length ratio of the spiral diameter of the polishing strip 11 to the inner diameter of the rice inlet channel 10 is 1:2-3. The diameter of the spiral of the polishing strip 11 should not be too large or too small. If the diameter of the spiral of the polishing strip 11 is too small, the thickness of the grain flow outside the polishing strip 11 will increase, and the grains thrown out by the polishing strip 11 will have difficulty in penetrating the outer grains. If the diameter of the spiral of the polishing strip 11 is too large, the ability of the grain flow in the center of the polishing strip 11 to move relative to each other will be weakened. The length ratio of the spiral diameter of the polishing strip 11 to the inner diameter of the rice inlet channel 10 is 1:2-3, which is the most suitable design.
[0035] In one embodiment, the inner wall of the rice inlet channel 10 is made of resin material. The inner wall of the rice inlet channel 10 is covered with a resin material with high friction, which can increase the degree of disorder of the grain flow near the inner wall of the rice inlet channel 10 and improve the friction and collision effect of the grains.
[0036] In one embodiment, the inner core of the polishing strip 11 is metal, and the outer core of the metal is coated with resin material. For grains that are too dry, even without external force involved in polishing, the collision between the grains and the polishing strip 11 will cause the grains to break. In this case, the surface of the polishing strip 11 is coated with resin material to reduce the grain collision strength, which can reduce the broken rice rate without affecting the polishing effect.
[0037] Furthermore, if Figure 2 As shown, a spring lock 16 is provided between the box body 1 and the box cover 2. In order to facilitate locking or opening of the box cover 2 and the box body 1, the spring lock 16 is used to lock the box cover 2 and the box body 1, thereby improving the maintenance efficiency of the vacuum rice suction box and facilitating the replacement of the elastic gasket 12 and the filter screen 7.
[0038] Furthermore, if Figure 2 As shown, the rice discharge port baffle 6 is connected to the rice discharge port 5 by a movable shaft 15, and the movable shaft 15 is connected to the rice discharge port switch control rod 14, and a counterweight 13 is arranged at the end of the rice discharge port switch control rod 14 away from the movable shaft 15. When the customer or the staff lifts the counterweight 13 and the rice discharge port switch control rod 14 connected thereto, the rice discharge port 5 is opened, and the counterweight 13 plays the role of closing the rice discharge port 5 and identifying the amount of grain in the vacuum rice suction box. When the amount of grain in the vacuum rice suction box is low, it is difficult to lift the counterweight 13, and when the amount of grain in the vacuum rice suction box is high, it is very easy to lift the counterweight 13, so that the grain storage in the vacuum rice suction box can be roughly understood. Specific embodiments
[0040] Example 1
[0041] like Figure 4As shown, a box cover 2 is provided on the box body 1 of the vacuum rice suction box. After rough processing such as rice milling, the grains enter the rice inlet channel 10 through the rice inlet 3 arranged on the side of the box body 1. The rice inlet channel 10 is arranged in a spiral along the inner wall of the box body 1. The grains flow along the spiral line of the rice inlet channel 10 in the rice inlet channel 10. The power comes from the gravity of the grains themselves and the attraction of the negative pressure generated by the suction of the air inlet 4 arranged above the box cover 2. The grains flow into the box body 1 of the vacuum rice suction box through the rice inlet channel 10, fall at the rice discharge port 5 below the box body 1, and are blocked by the rice discharge port baffle 6 and begin to accumulate. The box body 1 of the vacuum rice suction box is installed on the base 8, and a rice receiving funnel 9 is provided at the position corresponding to the rice discharge port 5 at the bottom of the base 8. A polishing strip 11 is provided in the rice inlet channel 10. The polishing strip 11 is arranged in a spiral along the center line of the rice inlet channel 10 in the rice inlet channel 10, and its two ends are connected to the inner wall of the rice inlet channel 10.
[0042] An elastic gasket 12 is arranged on the inner circle of the box cover 2, and the outer edge of the filter screen 7 is embedded in the elastic gasket 12. The central axis of the spiral line of the rice inlet channel 10 is colinear with the central axis of the box body 1.
[0043] The angle between the central axis of the spiral line of the rice inlet channel 10 and the central axis of the spiral line of the polishing strip 11 is 90°, the grain collides most violently with the polishing strip 11 in the rice inlet channel 10, and the length ratio between the spiral line diameter of the polishing strip 11 and the inner circle diameter of the rice inlet channel 10 is 1:2. The outermost length of the rice inlet channel 10 is 1 / 4 of the circumference of the inner wall above the box body 1. In this embodiment, only one section of the polishing strip 11 is provided, a spring lock 16 is provided between the box body 1 and the box cover 2, and the rice discharge port baffle 6 is connected to the rice discharge port 5 by a movable shaft 15, and the movable shaft 15 is connected to the rice discharge port switch control rod 14, and a counterweight 13 is provided at the end of the rice discharge port switch control rod 14 away from the movable shaft 15.
[0044] Under this design, after the grains enter the rice inlet channel 10 through the rice inlet port 3, the collision with the polishing bar 11 is the most direct, and the polishing intensity is the highest. The grains quickly leave the rice inlet channel 10 after polishing, so the grains are not easy to block the rice inlet channel 10, and the grains are prevented from being adsorbed again by dust and husk fragments that fall off during friction and collision, thereby improving the rice feeding speed while ensuring the polishing effect.
[0045] Example 2
[0046] like Figure 5As shown, a box cover 2 is provided on the box body 1 of the vacuum rice suction box. After rough processing such as rice milling, the grains enter the rice inlet channel 10 through the rice inlet 3 arranged on the side of the box body 1. The rice inlet channel 10 is arranged in a spiral along the inner wall of the box body 1. The grains flow along the spiral line of the rice inlet channel 10 in the rice inlet channel 10. The power comes from the gravity of the grains themselves and the attraction of the negative pressure generated by the suction of the air inlet 4 arranged above the box cover 2. The grains flow into the box body 1 of the vacuum rice suction box through the rice inlet channel 10, fall at the rice discharge port 5 below the box body 1, and are blocked by the rice discharge port baffle 6 and begin to accumulate. The box body 1 of the vacuum rice suction box is installed on the base 8, and a rice receiving funnel 9 is provided at the position corresponding to the rice discharge port 5 at the bottom of the base 8. A polishing strip 11 is provided in the rice inlet channel 10. The polishing strip 11 is arranged in a spiral along the center line of the rice inlet channel 10 in the rice inlet channel 10, and its two ends are connected to the inner wall of the rice inlet channel 10.
[0047] An elastic gasket 12 is arranged on the inner circle of the box cover 2, and the outer edge of the filter screen 7 is embedded in the elastic gasket 12. The central axis of the spiral line of the rice inlet channel 10 is colinear with the central axis of the box body 1.
[0048] The angle between the central axis of the spiral line of the rice inlet channel 10 and the central axis of the spiral line of the polishing strip 11 is 60°, the grains have a relatively weak collision with the polishing strip 11 in the rice inlet channel 10, and the length ratio between the spiral line diameter of the polishing strip 11 and the inner circle diameter of the rice inlet channel 10 is 1:3. The outermost length of the rice inlet channel 10 is 1 / 2 of the circumference of the inner wall above the box body 1, and only one section of the polishing strip 11 is provided in this embodiment. A spring lock 16 is provided between the box body 1 and the box cover 2, and the rice discharge port baffle 6 is connected to the rice discharge port 5 by a movable shaft 15, and the movable shaft 15 is connected to the rice discharge port switch control rod 14, and a counterweight 13 is provided at the end of the rice discharge port switch control rod 14 away from the movable shaft 15.
[0049] Under this design, the collision between the grains and the polishing strip 11 is relatively weak, which is suitable for dry grains and can effectively prevent the grains from breaking.
[0050] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.
Claims
1. A vacuum rice suction box for a rice mill, comprising a box body, a rice inlet, an air suction port, a rice discharge port, a rice discharge port baffle and a filter screen, wherein the rice discharge port is arranged below the box body, and is characterized in that: The rice inlet is connected to a rice inlet channel inside the box body, and the rice inlet channel is spirally arranged along the inner wall of the box body. A polishing strip is provided in the rice inlet channel, and the polishing strip is spirally arranged along the center line of the rice inlet channel. Both ends of the polishing strip are connected to the inner wall of the rice inlet channel.
2. A vacuum rice suction box for a rice mill as claimed in claim 1, characterized in that: A box cover is arranged above the box body, an inner edge and an inner circle of the box cover are provided with elastic material, and an outer edge of the filter screen is embedded in the elastic material.
3. A vacuum rice suction box for a rice mill as claimed in claim 2, characterized in that: The central axis of the spiral line of the rice inlet channel is colinear with the central axis of the box body, and the angle between the central axis of the spiral line of the rice inlet channel and the central axis of the spiral line of the polishing strip is 60°-90°.
4. A vacuum rice suction box for a rice mill as claimed in claim 3, characterized in that: The length ratio of the spiral diameter of the polishing strip to the inner circle diameter of the inlet channel is 1:2-3.
5. A vacuum rice suction box for a rice mill as claimed in any one of claims 1 to 4, characterized in that: The inner wall of the rice inlet channel is made of resin material.
6. A vacuum rice suction box for a rice milling machine as claimed in any one of claims 1 to 4, characterized in that: The inner core of the polishing strip is metal, and the outer surface of the metal inner core is covered with resin material.
7. A vacuum rice suction box for a rice mill as claimed in any one of claims 2 to 4, characterized in that: A spring lock is arranged between the box body and the box cover.
8. A vacuum rice suction box for a rice mill as claimed in any one of claims 1 to 4, characterized in that: The rice unloading port baffle is connected to the rice unloading port by a movable shaft, the movable shaft is connected to a rice unloading port switch control rod, and a counterweight is arranged at one end of the rice unloading port switch control rod away from the movable shaft.