Discharge gate pressure control device for rice mill and rice mill

Abstract

The application discloses a rice mill discharge door pressure control device and a rice mill, wherein the rice mill discharge door pressure control device comprises a rotating damping unit matched with a rotating shaft of the discharge door. The rotating damping unit has a resistance to prevent the discharge door from rotating to open and allows the discharge door to freely rotate to close. The rice mill discharge door pressure control device in the embodiment of the application improves the automation of the discharge door and guarantees the uniform quality of the rice mill processing.

Description

Technical Field

[0001] This invention relates to the field of pressure control technology, specifically a pressure control device for the discharge gate of a rice milling machine and a rice milling machine. Background Technology

[0002] Existing rice milling machines rely on manual adjustment of the discharge gate pressure, resulting in poor continuity of opening and closing and insufficient flexibility in adjustment. Some current rice milling machines use a magnetic powder clutch to control the discharge gate angle. Since the magnetic powder clutch requires the rotation of the drive shaft to generate torque, the motor must continuously operate to drive the drive shaft. This continuous energization of the motor connected to the outer ring of the magnetic powder clutch makes it prone to damage and can lead to abnormal shutdowns that disrupt production. Furthermore, the damping effect of the magnetic powder clutch prevents the discharge gate from both opening and closing. Therefore, when the rice flow rate decreases, the discharge gate, due to the damping effect of the magnetic powder clutch, may fail to immediately reduce its opening to provide pressure to the rice, causing the rice milling machine to lose processing pressure, resulting in insufficient rice processing and raw material waste.

[0003] Therefore, there is room for improvement in the pressure control device of the rice milling machine's discharge gate. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one aspect of the present invention aims to provide a pressure control device for the discharge gate of a rice milling machine, which improves the automation of the discharge gate and ensures the uniform quality of rice milling.

[0005] Another objective of this invention is to provide a rice milling machine.

[0006] According to a first aspect embodiment of the present invention, a pressure control device for the discharge gate of a rice milling machine includes a rotation damping unit that cooperates with the rotating shaft of the discharge gate. The rotation damping unit has resistance that prevents the discharge gate from rotating open, and allows the discharge gate to rotate freely to close.

[0007] According to an embodiment of the present invention, the rice milling machine discharge gate pressure control device provides unidirectional damping to the discharge gate through rotational damping, so that the discharge gate opens or closes quickly in a timely manner according to the change of rice flow rate, thereby avoiding the reduction of processing pressure in the rice milling machine and ensuring uniform quality of rice processing.

[0008] According to some embodiments of the present invention, the pressure control device for the discharge gate of a rice milling machine includes a rotary damping unit comprising a one-way clutch and a rotary damping mechanism.

[0009] The one-way clutch is coaxially engaged with the rotating shaft of the discharge gate, and the rotary damping mechanism is coaxially engaged with the one-way clutch; the one-way clutch is configured such that when the rotating shaft of the discharge gate rotates in the opening direction, the one-way clutch and the rotary damping mechanism engage in transmission; the one-way clutch is configured such that when the rotating shaft of the discharge gate rotates in the closing direction, the one-way clutch disengages from the rotary damping mechanism.

[0010] In some embodiments, the rotary damping mechanism is a rotary damper.

[0011] Optionally, the rotary damping mechanism can adjust the damping value.

[0012] Specifically, the rotary damping mechanism is a magnetic powder clutch, the first rotating shaft of the magnetic powder clutch is fixed circumferentially, and the second rotating shaft is fixed coaxially with the one-way clutch.

[0013] According to some embodiments of the present invention, the one-way clutch of the rice milling machine discharge gate pressure control device is a one-way bearing or a ratchet transmission mechanism.

[0014] According to some embodiments of the present invention, the discharge gate pressure control device of a rice milling machine is further provided with a fixing mechanism, and a counterweight is installed on the fixing mechanism.

[0015] Optionally, the counterweight can be detachably fixed to the fixing mechanism.

[0016] According to some embodiments of the present invention, the rice milling machine discharge gate pressure control device includes a fixing mechanism comprising a fixing rod fixed radially to the rotating shaft of the discharge gate, and a counterweight sleeved on the fixing rod.

[0017] A rice milling machine according to a second aspect embodiment of the present invention includes a casing, a discharge gate, and a discharge gate pressure control device. The casing has a discharge port; the discharge gate is rotatably mounted on the casing and covers the discharge port; the discharge gate pressure control device is the same as the discharge gate pressure control device in the first aspect embodiment of this application, and the rotation damping unit is connected to the rotating shaft of the discharge gate.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1This is a schematic diagram of a pressure control device for the discharge gate of a rice milling machine according to some embodiments of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a rice milling machine according to some embodiments of the present invention;

[0022] Figure 3 This is another schematic diagram of the structure of a rice milling machine according to some embodiments of the present invention;

[0023] Figure 4 This is a perspective view of a rice milling machine according to some embodiments of the present invention.

[0024] Figure label:

[0025] Rice milling machine 100.

[0026] Machine casing 1, discharge port 10

[0027] Discharge gate 2, rotating shaft 20

[0028] Rice milling machine discharge gate pressure control device 3

[0029] Rotary damping unit 31, one-way clutch 311, rotary damping mechanism 312

[0030] Magnetic powder clutch 32, first rotating shaft 321, second rotating shaft 322

[0031] Controller 34, Housing 36

[0032] Support 37, First plate 371, Second plate 372

[0033] Fixing mechanism 4, fixing rod 41, counterweight 42. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0037] The following is for reference. Figures 1-4 The rice milling machine discharge gate pressure control device 3 is described according to an embodiment of the first aspect of the present invention.

[0038] The rice milling machine discharge gate pressure control device 3 can also be applied to other equipment, such as equipment that requires control of the discharge gate, to achieve automated operation.

[0039] It's worth noting that the opening degree of the discharge gate in a rice milling machine determines the rice flow rate. The pressure at the discharge gate is the milling pressure of the rice milling machine. Under stable feed flow conditions, the opening degree of the discharge gate determines the residence time of the raw material in the milling chamber. This residence time directly determines the processing accuracy and also the processing loss. When the rice flow rate decreases, an excessively large discharge gate opening will cause the milling chamber to lose processing pressure, resulting in insufficient rice processing and wasted raw materials.

[0040] To solve the above problems, such as Figure 1 As shown, the rice milling machine discharge gate pressure control device 3 according to some embodiments of the present invention includes a rotation damping unit 31.

[0041] The rotation damping unit 31 cooperates with the rotating shaft 20 of the discharge gate 2. While controlling the rotation of the discharge gate 2, the rotation damping unit 31 generates a damping force on the discharge gate 2. This prevents the rice flow from being too large and impacting the discharge gate 2, causing it to open excessively and resulting in a loss of pressure in the rice milling machine 100, thus helping to maintain the pressure stability inside the rice milling machine 100.

[0042] Specifically, when the rice flow rate is high, the rice flow exerts a continuous impact force on the discharge gate 2. Since the rice flow rate inside the rice milling machine 100 is unstable, this instability leads to unstable impact forces on the discharge gate 2. This unstable impact force may cause the discharge gate 2 to vibrate, resulting in unstable opening and closing angles, and consequently, unstable processing pressure inside the rice milling machine 100.

[0043] The rotary damping unit 31 controls vibrations in the system through damping force. This damping force effectively absorbs and dissipates vibration energy, making the opening position of the discharge gate 2 more stable. The rotary damping unit 31 reduces instantaneous pressure changes, which also helps improve processing accuracy and consistency. It ensures that the product maintains consistent characteristics during continuous production, thereby improving overall quality and production efficiency. Simultaneously, when the rice flow rate decreases, causing a reduction in the impact force of the rice flow on the discharge gate 2, the discharge gate 2 rotates under gravity to reduce its opening, thus maintaining the discharge pressure on the rice flow. This ensures that the pressure provided by the discharge gate 2 remains stable during rice processing, improving the consistency of rice processing.

[0044] In other words, the rotation damping unit 31 has resistance to prevent the discharge gate 2 from rotating open, and allows the discharge gate 2 to rotate freely to close.

[0045] When the rice flow rate decreases, the discharge gate 2 can quickly sense the pressure change and freely rotate to close. The rotation of the discharge gate 2 in the closing direction is driven by the difference between the gravity of the discharge gate 2 and the pressure exerted by the rice on the discharge gate 2. Gravity always acts on the discharge gate 2. When the rice flow rate decreases, causing a decrease in pressure on the discharge gate 2, the aforementioned driving force can immediately drive the discharge gate 2 to rotate and reduce the opening. This driving force does not require external detection of changes in rice flow rate and will not delay the action of the discharge gate 2 due to the rotational lag of the rotation damping unit 31. This prevents the rice from losing pressure in the instant of decreasing flow rate, thereby helping to maintain a continuous processing pressure for the rice flow and ensuring the quality of rice processing.

[0046] According to some embodiments of the rice milling machine discharge gate pressure control device 3, such as Figures 2-3 As shown, the rotary damping unit 31 includes a one-way clutch 311 and a rotary damping mechanism 312.

[0047] One-way clutch 311 is coaxially engaged with the rotating shaft 20 of the discharge gate 2, and rotary damping mechanism 312 is coaxially engaged with one-way clutch 311. When the discharge gate 2 opens, it is damped by the rotary damping mechanism 312, thus limiting the opening position of the discharge gate 2 and maintaining the rice under stable pressure and with a stable flow rate, avoiding excessive fluctuations in production line output. When rice is processed in the rice milling machine 100, if the flow rate increases, it is desirable to open the discharge gate 2 to increase the discharge flow rate. At this time, the rotating shaft 20 of the discharge gate 2 is fixedly engaged with the rotary damping mechanism 312 through one-way clutch 311. Through the rotary damping effect provided by the rotary damping mechanism 312, the discharge gate 2 is kept in its original working position. Thus, the greater the impact force provided by the rice, the greater the processing pressure of the rice, thereby increasing the rice milling intensity during high-flow processing and ensuring the stability of rice processing quality. Meanwhile, the discharge gate 2 is controlled by the one-way clutch 311 and can only move freely in one direction, namely the closing direction. It can close the outlet as the rice flow decreases, maintain stable pressure, and ensure that the rice does not leave the rice milling machine directly without pressure, thus maintaining stable processing quality.

[0048] The one-way clutch 311 is configured such that when the shaft 20 of the discharge gate 2 rotates in the opening direction, the one-way clutch 311 engages with the rotation damping mechanism 312 for transmission. The rotation damping mechanism 312 generates a certain resistance, restricting the change in the opening position of the discharge gate 2 and providing greater processing pressure to the rice that is blocked by the discharge gate 2.

[0049] The one-way clutch 311 is configured such that when the shaft 20 of the discharge gate 2 rotates in the closing direction, the one-way clutch 311 disengages from the rotational damping mechanism 312. Without the constraint of the rotational damping mechanism 312, the discharge gate 2 can quickly close. This allows it to automatically close and reduce the opening when the rice flow rate is insufficient to support the discharge gate 2 in its original working position, maintaining stability at a position where the support force provided by the rice is balanced with the gravity of the discharge gate 2, thereby maintaining processing pressure on the rice.

[0050] With this configuration, the discharge gate 2 can move freely in the set direction, and can also be controlled by the rotation damping mechanism 312 during opening and closing, thereby achieving smooth and controllable movement.

[0051] Optionally, the rotary damping mechanism 312 is a rotary damper. The rotary damper enables the discharge gate 2 to achieve smooth mechanical movement during rotation, which helps reduce impact and vibration. Simultaneously, the rotary damper offers high control precision, accurately controlling the rotation angle of the discharge gate 2. The rotary damper can employ a structure known in the prior art; its internal structure will not be described in detail here.

[0052] Specifically, the rotational damping mechanism 312 can adjust the damping value. Users can adjust it according to actual needs to change the damping effect during the rotation of the discharge gate 2.

[0053] like Figure 2 As shown, in some embodiments, the rice milling machine discharge gate pressure control device 3 further includes a controller 34 electrically connected to the rotation damping mechanism 312, the controller 34 being used to adjust the damping value.

[0054] When the impact force of the rice may exceed the current damping force limit, the controller 34 can be adjusted to increase the damping value of the rotary damping mechanism 312. This allows the discharge gate 2 to have greater resistance and provides greater processing pressure to the rice.

[0055] When it is necessary to reduce the impact when the discharge gate 2 opens, the controller 34 can be adjusted to increase the damping value of the rotary damping mechanism 312. This reduces the opening speed of the discharge gate 2, thereby reducing impact and vibration.

[0056] In some embodiments, the rotary damping mechanism 312 is a magnetic powder clutch 32. The torque transmission generated in the magnetic powder clutch 32 is stable and predictable when the current changes.

[0057] like Figure 1 As shown, the magnetic powder clutch 32 includes a first rotating shaft 321 and a second rotating shaft 322.

[0058] The first rotating shaft 321 of the magnetic powder clutch 32 is fixed circumferentially, and the second rotating shaft 322 is fixed coaxially with the one-way clutch 311.

[0059] When the magnetic powder clutch 32 is energized, the rotation of either the first shaft 321 or the second shaft 322 will induce the other shaft to rotate synchronously. Since the first shaft 321 is fixed, when the second shaft 322 rotates, the first shaft 321 immediately generates a damping force to resist its rotation. This achieves torque transmission and regulation, ensuring that the unidirectional transmission structure 33 connected to the second shaft 322 has a rotational tendency. Therefore, during operation, the magnetic powder clutch 32 provides rotational resistance and causes the discharge gate to retract to its final open position only when it is impacted by rice and undergoes a certain rotational opening motion. Thus, the discharge gate will continuously exhibit a slight movement during operation, but it will always maintain the processing pressure on the rice.

[0060] In some existing rice milling machines, a magnetic powder clutch provides resistance to prevent the discharge gate from opening under the impact of rice. However, the magnetic powder clutch needs to rotate continuously to provide resistance. As a result, the motor connected to the outer ring of the magnetic powder clutch also needs to be continuously powered, which often leads to abnormal shutdowns during production.

[0061] The damping force generated by the rotary damping mechanism 312 of this application on the discharge gate 2 helps to reduce instantaneous pressure fluctuations and stabilize the entire processing process.

[0062] When the discharge gate 2 needs to be closed, the one-way clutch 311 ensures that it can respond quickly and complete the closing action smoothly. During this process, the rotary damping mechanism 312 does not need to provide the closing torque output, which reduces the dependence on the performance of the rotary damping mechanism 312, prevents excessive stress or damage to the rotary damping mechanism 312, and thus extends its service life.

[0063] like Figures 1-3 As shown, in some embodiments of the present invention, the rice milling machine discharge gate pressure control device 3, the magnetic powder clutch 32 further includes a housing 36 and a bracket 37.

[0064] The magnetic powder clutch 32 is located inside the housing 36, such as Figures 1-4 As shown, housing 36 provides a stable operating environment for magnetic powder clutch 32 and protects it from external factors. Second shaft 322 extends out of housing 36 and connects to one-way clutch 311 to transmit torque.

[0065] The bracket 37 is mounted on the housing 36, such as Figure 2 As shown, the first rotating shaft 321 is connected to the housing 36. The housing 36 provides additional support and stability to the magnetic powder clutch 32, ensuring that the magnetic powder clutch 32 maintains the correct position and orientation during operation.

[0066] like Figure 1 As shown, optionally, the bracket 37 includes a first plate 371 and a second plate 372. The first plate 371 is connected to the bottom wall of the housing 36, providing a connection position and support for the bracket 37.

[0067] The second plate 372 is vertically connected to one side of the first plate 371. The second plate 372 is connected to the magnetic powder clutch 32 and provides support for the magnetic powder clutch 32.

[0068] In some embodiments, the number of supports 37 is at least two. The second plate 372 of one portion of the supports 37 is connected to the first rotating shaft 321, and the second plate 372 of the other portion of the supports 37 is connected to the housing 36. This not only distributes the load and reduces stress on individual supports 37, but also improves the stability and durability of the entire pressure control device 3.

[0069] In some embodiments, the one-way clutch 311 is a one-way bearing or a ratchet drive mechanism. The one-way bearing can rotate freely in one direction and lock in the other direction, effectively realizing the one-way rotation of the discharge gate 2. The one-way bearing can adopt the structure of a one-way bearing known in the prior art, and its structure and type are not limited here.

[0070] When the one-way clutch 311 adopts a ratchet drive mechanism, in some specific embodiments, the ratchet drive mechanism includes a ratchet and a pawl. The ratchet is connected to the rotating shaft 20 of the discharge gate 2, and the pawl is connected to the rotary damping mechanism 312. The pawl is engaged with the ratchet teeth of the ratchet. When the discharge gate 2 rotates in the opening direction, the ratchet rotates in the first direction, and the pawl is engaged with the back of the ratchet teeth, thereby driving the ratchet to drive the pawl to rotate in the first direction. The pawl transmits the power to the rotary damping mechanism 312, and the damping force of the rotary damping mechanism 312 is transmitted to the rotating shaft 20 of the discharge gate 2 through the ratchet drive mechanism. When the discharge gate 2 rotates in the closing direction, the ratchet rotates in the second direction, and the pawl opens along the tooth surface of the ratchet teeth. Thus, the transmission between the rotary damping mechanism 312 and the rotating shaft 20 of the discharge gate 2 is disconnected through the ratchet drive mechanism, and the rotating shaft 20 of the discharge gate 2 is not affected by the damping force of the rotary damping mechanism 312 when rotating in the closing direction.

[0071] The one-way clutch 311 uses a ratchet drive mechanism, which is advantageous for achieving higher load-bearing capacity and longer service life.

[0072] like Figures 2-3 As shown, the one-way clutch 311 is located on the outside of the housing 36.

[0073] According to some embodiments of the rice milling machine discharge gate pressure control device 3, such as Figures 2-4 As shown, a fixing mechanism 4 is also provided on the discharge gate 2, and a counterweight 42 is installed on the fixing mechanism 4. When the discharge gate 2 vibrates, it provides pressure compensation for the discharge gate 2, which is beneficial to improving the degree of rice milling and whitening.

[0074] Optionally, such as Figure 4 As shown, the counterweight 42 is detachably fixed to the fixing mechanism 4. This increases the possibility of manual adjustment, facilitating the adjustment of the pressure at the discharge gate 2 during maintenance and other situations. Simultaneously, the detachable connection improves the flexibility of the counterweight 42, allowing its weight to be adjusted according to the user's actual needs, stabilizing the working effect of the rice milling machine 100 and enhancing the milling process.

[0075] In some embodiments, the fixing mechanism 4 includes a fixing rod 41 radially fixed to the rotating shaft 20 of the discharge gate 2, and the counterweight 42 is sleeved and installed on the fixing rod 41. That is, by changing the position or weight of the counterweight 42 on the fixing rod 41 that is linked to the discharge gate 2, the torque is changed, thereby controlling the pressure of the discharge gate 2.

[0076] The following is for reference. Figures 1-4 The following describes a rice milling machine 100 according to a second aspect embodiment of the present invention.

[0077] like Figure 4 As shown, the rice milling machine 100 includes a machine casing 1, a discharge gate 2, and a rice milling machine discharge gate pressure control device 3.

[0078] The machine casing 1 is provided with a discharge port 10, which is used to discharge the milled rice.

[0079] The discharge gate 2 is rotatably mounted on the housing 1 and covers the discharge port 10. By adjusting the opening and closing angle, rice is discharged, and at the same time, the pressure inside the rice milling machine 100 is controlled.

[0080] like Figure 1 As shown, the rotation damping unit 31 is connected to the rotating shaft 20 of the discharge gate 2.

[0081] Specifically, when rice impacts the discharge gate 2, the discharge gate 2 rotates at a certain angle in the opening direction via the rotation damping unit 31. When the rice flow decreases, the impact force of the rice on the discharge gate 2 will suddenly decrease, and the discharge gate 2 will fall freely in the closing direction. This allows for timely adjustment of the closing angle, ensuring stable processing pressure within the rice milling machine 100 and guaranteeing pressure stability during the operation of the rice milling machine 100, thereby achieving stable and reliable rice processing quality.

[0082] Optionally, the second rotating shaft 322 of the rotary damping mechanism 312 is connected to the drive shaft in the one-way clutch 311 via a coupling. The drive shaft of the one-way clutch 311 is connected to the rotating shaft 20 of the discharge gate 2 via a coupling.

[0083] Below, please refer to the appendix. Figures 1-4 This application describes a rice milling machine 100 according to a specific embodiment.

[0084] The rice milling machine 100 includes a machine casing 1, a discharge gate 2, and a rice milling machine discharge gate pressure control device 3.

[0085] The housing 1 includes a discharge port 10.

[0086] The discharge gate 2 is rotatably mounted on the housing 1 and covers the discharge port 10.

[0087] The discharge gate 2 includes a rotating shaft 20 and a fixing mechanism 4.

[0088] The pressure control device 3 for the discharge gate of the rice milling machine includes a rotation damping unit 31.

[0089] The rotary damping unit 31 includes a one-way clutch 311 and a rotary damping mechanism 312.

[0090] The one-way clutch 311 is coaxially engaged with the rotating shaft 20 of the discharge gate 2, and the rotation damping mechanism 312 is coaxially engaged with the one-way clutch 311.

[0091] The fixing mechanism 4 is installed on the discharge gate 2.

[0092] The fixing mechanism 4 includes a fixing rod 41 and a counterweight 42.

[0093] The fixing rod 41 is radially fixed to the rotating shaft 20 of the discharge gate 2, and the counterweight 42 is detachably fixed to the fixing rod 41.

[0094] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0095] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pressure control device for the discharge gate of a rice milling machine, characterized in that, include: A rotational damping unit, which engages with the rotating shaft of the discharge gate, provides resistance to prevent the discharge gate from rotating open, while allowing it to rotate freely to close. The rotational damping unit includes: A one-way clutch coaxially engaged with the rotating shaft of the discharge gate and a rotary damping mechanism coaxially engaged with the one-way clutch; The one-way clutch is configured such that when the rotating shaft of the discharge gate rotates in the opening direction, the one-way clutch engages with the rotation damping mechanism for transmission. The one-way clutch is configured such that when the rotating shaft of the discharge gate rotates in the closing direction, the one-way clutch disengages from the rotation damping mechanism. The rotary damping mechanism is a magnetic powder clutch, the first rotating shaft of the magnetic powder clutch is fixed circumferentially, and the second rotating shaft of the magnetic powder clutch is fixed coaxially with the one-way clutch.

2. The rice milling machine discharge gate pressure control device according to claim 1, characterized in that, The rotary damping mechanism is a rotary damper.

3. The pressure control device for the discharge gate of a rice milling machine according to claim 1, characterized in that, The rotary damping mechanism can adjust the damping value.

4. A pressure control device for the discharge gate of a rice milling machine according to any one of claims 1-3, characterized in that, The one-way clutch is a one-way bearing or a ratchet drive mechanism.

5. A pressure control device for the discharge gate of a rice milling machine according to any one of claims 1-3, characterized in that, The discharge gate is also equipped with a fixing mechanism, and a counterweight is installed on the fixing mechanism.

6. The rice milling machine discharge gate pressure control device according to claim 5, characterized in that, The counterweight can be detachably fixed to the fixing mechanism.

7. The rice milling machine discharge gate pressure control device according to claim 5, characterized in that, The fixing mechanism includes a fixing rod that is radially fixed to the rotating shaft of the discharge gate, and the counterweight is sleeved and installed on the fixing rod.

8. A rice milling machine, characterized in that, include: A housing, wherein a discharge port is provided on the housing; A discharge gate, which is rotatably mounted on the housing and covers the discharge port; According to any one of claims 1-7, the pressure control device for the discharge gate of a rice milling machine, the rotary damping unit is connected to the rotating shaft of the discharge gate.

Images