CN219880015U - Accurate adjusting device of ejection of compact pressure, grain processing equipment, rice mill, burnishing machine - Google Patents
Accurate adjusting device of ejection of compact pressure, grain processing equipment, rice mill, burnishing machine Download PDFInfo
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- CN219880015U CN219880015U CN202320931827.9U CN202320931827U CN219880015U CN 219880015 U CN219880015 U CN 219880015U CN 202320931827 U CN202320931827 U CN 202320931827U CN 219880015 U CN219880015 U CN 219880015U
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 30
- 235000009566 rice Nutrition 0.000 title claims abstract description 30
- 235000013339 cereals Nutrition 0.000 title claims abstract description 23
- 240000007594 Oryza sativa Species 0.000 title claims abstract 3
- 230000001105 regulatory effect Effects 0.000 claims abstract description 38
- 238000007599 discharging Methods 0.000 claims abstract description 31
- 238000003860 storage Methods 0.000 claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 19
- 238000005498 polishing Methods 0.000 claims abstract description 10
- 230000003993 interaction Effects 0.000 claims abstract description 6
- 230000003139 buffering effect Effects 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 241000209094 Oryza Species 0.000 description 27
- 238000000034 method Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000002087 whitening effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The utility model provides a discharge pressure accurate regulating device, grain processing equipment, a rice mill and a polishing machine, wherein the discharge pressure accurate regulating device comprises a discharge nozzle, a pressure regulating plate, a rubber pressing plate, two weight rods, two cylinders, an air storage tank, a second electromagnetic valve, a third electromagnetic valve, a pressure sensor and a control panel. According to the utility model, the phenomenon of spraying at the upper end of the original discharging door is effectively controlled by arranging the rubber pressing plate attached to the upper end of the pressure regulating plate, so that the pressure control of the discharging door is better, more stable and effective; the utility model can realize the quick exchange of the mechanical pressing lump and the pneumatic pressing lump and meet the selection requirement of customers; the utility model can timely remove pressure treatment when the situation of blocking is about to be found, thereby avoiding the shutdown of the host equipment and ensuring the continuous and stable operation of the production line. The utility model has accurate and stable control pressure, and can realize stepless regulation and control of the pressure. The pressure value is set through the human-computer interaction interface, so that the adjustment is simple, and the on-site operation learning and technical guidance of operators are facilitated.
Description
Technical Field
The utility model relates to the technical field of grain processing equipment, in particular to a discharging pressure accurate adjusting device, grain processing equipment, a rice mill and a polishing machine.
Background
In the past, pressure door adjusting device assembles in host computer discharge gate position, and traditional pressure door device is by discharge gate subassembly, weight pole, weight piece etc. (see fig. 1 below), through the supporting weight quantity and the position of manual work change pressure door, changes the lever pressure size of discharge gate, realizes the regulation of pressure. The working principle of the grain processing machine is as follows: when rice enters a whitening chamber of a series of rice mills, rolling and scraping between rice grains and the whitening roller, between the rice grains and the rice sieve plate and between the rice grains and the rice sieve plate are performed in spiral propulsion of the rotating whitening roller, so that the rice grains are gradually whitened and brightened, the whitened rice grain flow needs to be discharged to the outside of a main machine by overcoming the pressure resistance of a pressure gate lever of a discharge port, and the number (weight) of pressure gates and the position of the pressure gates on the pressure gate can be changed, so that the processing pressure of the rice grains in the whitening chamber is changed.
The traditional pressure gate device is manually adjusted mostly, has no automatic adjusting function, and needs on-site operators to frequently increase the number (weight) of the pressure weight or move the position of the pressure weight on the weight rod according to personal experience so as to adjust the pressure. For example, in the grain processing process, the rice milling precision, quality, broken rice rate and the like can be affected after the operators of a rice mill are replaced by processing the same equipment and the same grain variety. In addition, the traditional pressure gate device is unstable in adjustment, such as a rice mill in the grain processing process, and the swing amplitude of a weight on a weight rod is large due to the fluctuation of the rice flow of a discharge hole, so that the adjusted weight is frequently found to move in vibration, the whitening precision and the polishing effect are changed, and the consistency of a finished product is affected. Moreover, when the opening of the pressure door is too large, the top end of the pressure door is easy to spray, so that the pressure door is invalid, and the pressure is unstable.
The pressure is controlled pneumatically by the air cylinder, and the air pressure proportional valve is used, so that the air cylinder is high in price and high in air source requirement, and the air source is easy to be blocked due to impurities; the pneumatic proportional valve is used for directly controlling the air cylinder, and the air cylinder diameter is generally not large and is very sensitive to the amount of air, so that the control is not stable enough.
The existing automatic pressure door device adopts the deformation of a spring or a shrapnel to adjust the force, has larger fluctuation, is not accurate enough, has complex structure, is complex to assemble and has higher cost.
Disclosure of Invention
The utility model provides a discharging pressure accurate regulating device, which solves the technical problems that the existing pressure regulating device depends on personnel experience, is unstable in control, poor in accuracy, complex in cost and high in spraying at the upper end of a pressure door.
The technical scheme adopted by the utility model is as follows:
an accurate discharge pressure regulating device, comprising:
a discharge nozzle;
the pressure regulating plate is rotatably arranged at the discharge port of the discharge nozzle through a pressure door rotating shaft;
the rubber pressing plate is fixedly arranged in the discharging nozzle and is attached to the upper end of the pressure regulating plate;
the two weight rods are symmetrically arranged at two ends of the pressure door rotating shaft, and each weight rod is provided with a weight through threaded connection;
the two air cylinders are arranged on two sides of the discharging nozzle in pairs, and telescopic rods of the two air cylinders are respectively connected with two ends of the rotating shaft of the pressure door in a driving manner and used for adjusting the rotating position of the pressure adjusting plate;
the air storage tank is characterized in that one end of the air storage tank is connected with rod cavities of the two cylinders, the other end of the air storage tank is connected with an air inlet pipe interface through a third electromagnetic valve and used for buffering pressure changes in a pipeline, and the air inlet pipe interface is also connected with rodless cavities of the two cylinders;
the second electromagnetic valve is arranged on a pipeline between the gas storage tank and the rod cavity of the cylinder in a bypass way;
the pressure sensor is connected with a pipeline between the gas storage tank and the rod cavity of the cylinder in a bypass mode and is used for collecting real-time pressure values in the pipeline;
and the control panel with a man-machine interaction interface is connected with the second electromagnetic valve, the third electromagnetic valve and the pressure sensor circuit and is used for inputting and outputting operation parameters and controlling the second electromagnetic valve and the third electromagnetic valve to act according to the real-time working current of the host equipment so as to maintain the pressure value in the pipeline within a set range.
Further, a discharging door cover is further arranged on the discharging nozzle.
Further, the two ends of the pressure door rotating shaft are respectively provided with an air cylinder driving rod, and the telescopic rods of the two air cylinders are respectively hinged with the corresponding air cylinder driving rods to drive the pressure door rotating shaft to rotate.
Further, the two cylinders are symmetrically hinged to two sides of the discharging nozzle through the cylinder fixing seats respectively.
Further, the air inlet pipe interface is also connected with a pressure regulating valve for stabilizing the air inlet pressure.
Further, a first electromagnetic valve connected with the control panel circuit is also arranged on a pipeline connecting the air inlet pipe interface and rodless cavities of the two cylinders.
Further, the outlet of the second electromagnetic valve is also provided with a muffler.
The utility model also provides grain processing equipment which comprises the discharging pressure accurate adjusting device.
The utility model also provides a rice mill, which comprises the discharging pressure accurate adjusting device.
The utility model also provides a polishing machine, which comprises the discharging pressure accurate adjusting device.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a discharge pressure accurate regulating device, grain processing equipment, a rice mill and a polishing machine, wherein the discharge pressure accurate regulating device comprises a discharge nozzle, a pressure regulating plate, a rubber pressing plate, two weight rods, two cylinders, an air storage tank, a second electromagnetic valve, a third electromagnetic valve, a pressure sensor and a control panel, and compared with the prior art, the discharge pressure accurate regulating device has the following advantages:
1. according to the utility model, the phenomenon of spraying at the upper end of the original discharging door is effectively controlled by arranging the rubber pressing plate attached to the upper end of the pressure regulating plate, so that the pressure control of the discharging door is better, more stable and effective;
2. the utility model can realize the quick interchange of the traditional mechanical pressing lump and the pneumatic pressing lump and meet the selection requirement of customers;
3. when the situation of machine blockage is found in the face of abnormal operation (abnormal increase of working current) of the host equipment, the pressure relief treatment of the discharge port of the host can be timely carried out, the shutdown of the host equipment is avoided, and the continuous and stable operation of the production line is ensured.
4. The utility model has accurate and stable control pressure, and the pressure can be regulated and controlled steplessly due to the uniform air pressure standard of the air source required by the control by applying the cylinder extension and retraction principle and the buffer function of the air storage tank.
5. The pressure value is set through the human-computer interaction interface, so that the adjustment is simple, and the on-site operation learning and technical guidance of operators are facilitated.
In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The utility model will be described in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 is a schematic perspective view of a tap of a discharge pressure accurate adjustment device according to a preferred embodiment of the present utility model.
Fig. 2 is a schematic front view of a tap of the discharge pressure accurately adjusting device according to the preferred embodiment of the present utility model.
Fig. 3 is a schematic view of the inside of the tap of the discharge pressure fine adjustment device according to the preferred embodiment of the present utility model.
Fig. 4 is a schematic sectional view of a tap of the discharge pressure accurately adjusting device according to the preferred embodiment of the present utility model.
Fig. 5 is a schematic diagram of the gas path principle of the discharge pressure accurate adjusting device according to the preferred embodiment of the utility model.
Fig. 6 is a schematic structural view of a grain processing apparatus equipped with a discharge pressure accurate adjusting device.
The figure shows:
1. a pressure door spindle; 2. a cylinder transmission rod; 3. a cylinder; 4. a discharge nozzle; 5. a cylinder fixing seat; 6. a discharging door cover; 7. pressing weight; 8. a weight rod; 9. a rubber press plate; 10. a pressure regulating plate; 11. a control panel; 12. a first electromagnetic valve; 13. a muffler; 14. a second electromagnetic valve; 15. a pressure sensor; 16. a gas storage tank; 17. a third electromagnetic valve; 18. a pressure regulating valve; 19. an air inlet pipe interface.
Detailed Description
Referring to fig. 1 to 5, a preferred embodiment of the present utility model provides a discharge pressure accurate adjustment device, which comprises a discharge nozzle 4, a pressure adjustment plate 10, a rubber pressing plate 9, two weight rods 8, two cylinders 3, a gas storage tank 16, a second electromagnetic valve 14, a pressure sensor 15, and a control panel 11 with a man-machine interaction interface, wherein:
the pressure regulating plate 10 is rotatably arranged at a discharge port of the discharge nozzle 4 through a pressure door rotating shaft 1;
the rubber pressing plate 9 is fixedly arranged in the discharging nozzle 4 and is attached to the upper end of the pressure regulating plate 10;
the two weight rods 8 are symmetrically arranged at two ends of the pressure door rotating shaft 1, and each weight rod 8 is provided with a weight 7 through threaded connection;
the two air cylinders 3 are arranged on two sides of the discharging nozzle 4, and telescopic rods of the two air cylinders 3 are respectively connected with two ends of the pressure door rotating shaft 1 in a driving way and are used for adjusting the rotating position of the pressure adjusting plate 10;
one end of the air storage tank 16 is connected with rod cavities of the two air cylinders 3, the other end of the air storage tank is connected with an air inlet pipe interface 19 through a third electromagnetic valve 17 and used for buffering pressure changes in a pipeline, and the air inlet pipe interface 19 is also connected with rodless cavities of the two air cylinders 3;
the second electromagnetic valve 14 is arranged on a pipeline between the gas storage tank 16 and the rod cavity of the cylinder 3 in a bypass mode;
the pressure sensor 15 is connected with a pipeline between the gas storage tank 16 and the rod cavity of the cylinder 3 in a bypass manner and is used for collecting real-time pressure values in the pipeline;
the control panel 11 is connected with the second electromagnetic valve 14, the third electromagnetic valve 17 and the pressure sensor 15 in a circuit manner, and is used for inputting and outputting operation parameters and controlling the second electromagnetic valve 14 and the third electromagnetic valve 17 to act according to real-time operation current of the host equipment so as to maintain the pressure value in the pipeline within a set range.
Compared with the prior art, the embodiment has the following advantages:
1. according to the embodiment, the phenomenon of spraying at the upper end of the original discharging door is effectively controlled by arranging the rubber pressing plate 9 attached to the upper end of the pressure regulating plate, and the pressure control of the discharging door is better, more stable and effective;
2. the embodiment can realize the quick exchange of the traditional mechanical pressing lump and the pneumatic pressing lump, and meet the selection requirement of customers;
3. when the situation of machine blockage is found in the face of abnormal operation (abnormal increase of working current) of the host equipment, the pressure relief treatment of the discharge port of the host can be timely carried out, the shutdown of the host equipment is avoided, and the continuous and stable operation of the production line is ensured.
4. The embodiment controls the pressure accurately and stably, and the air pressure standard of the air source required by control is unified due to the fact that the extension and retraction principle of the air cylinder 3 and the buffer function of the air storage tank 16 are applied, so that the pressure can be regulated and controlled steplessly.
5. The pressure value is set through the human-computer interaction interface, the adjustment is simple, and the on-site operation learning and technical guidance of operators are facilitated.
In the preferred embodiment of the present utility model, the discharging nozzle 4 is further provided with a discharging door cover 6, and in this embodiment, when the customer selects the pneumatic type, the discharging door cover 6 can be opened, so that the customer is convenient to overhaul and debug.
The two ends of the pressure door rotating shaft 1 are respectively provided with an air cylinder driving rod 2, and telescopic rods of the two air cylinders 3 are respectively hinged with the corresponding air cylinder driving rods 2 to drive the pressure door rotating shaft 1 to rotate.
In the embodiment, the telescopic rod of the air cylinder 3 drives the air cylinder transmission rod 2 to drive the pressure door rotating shaft 1 to rotate, and then drives the pressure adjusting plate 10 to rotate to realize pressure adjustment of the discharge hole, so that the transmission is simple and reliable.
In the preferred embodiment of the utility model, the two cylinders 3 are symmetrically hinged on the two sides of the discharging nozzle 4 through the cylinder fixing seats 5 respectively, and the installation and the maintenance are convenient.
In the preferred embodiment of the present utility model, the air inlet pipe interface 19 is further connected with a pressure regulating valve 18 for stabilizing the air inlet pressure. The air inlet pipe interface 19 is further connected with a pressure regulating valve 18, the pressure regulating valve 18 can further ensure the stability of air inlet pressure, avoid pressure fluctuation in the running process of the host equipment, and ensure the pressure stability in the running process of the host equipment so as to obtain stable and reliable processing quality.
In the preferred embodiment of the utility model, a first electromagnetic valve 12 connected with the circuit of the control panel 11 is also arranged on the pipeline connecting the air inlet pipe interface 19 and the rodless cavities of the two cylinders 3.
The embodiment is further provided with a first electromagnetic valve 12 in circuit connection with the control panel 11, the first electromagnetic valve 12 is located on a pipeline between the air inlet pipe interface 19 and the rodless cavity of the air cylinder 3, the first electromagnetic valve 12 in the embodiment mainly has the effect that when overload occurs on equipment, the rodless cavity of the air cylinder 3 is enabled to rapidly enter air by opening the first electromagnetic valve 12, so that the pressure regulating plate 10 is pushed to be rapidly opened to enable a discharge hole to be timely unloaded, the phenomenon that the host equipment is blocked due to the occurrence of blocking phenomenon on the discharge hole of the discharge nozzle 4 is avoided, and safe and reliable operation of the host equipment is ensured.
In the preferred embodiment of the present utility model, the outlet of the second electromagnetic valve 14 is further provided with a muffler 13, unlike the previous embodiment, the present embodiment further provides a muffler 13 at the outlet of the second electromagnetic valve 14, and when the second electromagnetic valve 14 is opened to exhaust, a certain noise is inevitably generated, and the muffler 13 can eliminate the noise, so as to effectively avoid noise pollution during operation.
The working principle of the above embodiment is explained as follows:
when the material comes in the discharge nozzle 4, the material pushes away the pressure regulating plate 10 pressurized by the weight 7 or the air cylinder 3 to be discharged out of the machine, the top end of the discharge nozzle 4 is provided with a rubber pressing plate 9, the rubber pressing plate 9 has the characteristic of automatic deformation, the tail end of the rubber pressing plate can be always contacted with the pressure regulating plate 10, and the rice grains are prevented from being discharged from the top end of the pressure regulating plate 10, so that the pressure is unstable;
simultaneously, the cylinder fixing seat 5 welded on the discharging nozzle 4 can be used for installing the cylinder 3 as a pneumatic weight, the upper end of the cylinder 3 is connected with the cylinder transmission rod 2, when pneumatic pressurization is performed, the cylinder transmission rod 2 drives the pressure door rotating shaft 1 to rotate, and pneumatic pressurization is realized, wherein the pressure adjusting plate 10 is fixedly connected with the pressure door rotating shaft 1 through bolts.
The control panel 11 automatically controls the corresponding electromagnetic valve to switch on the air passage according to the set parameters, and transmits the compressed air to the air cylinder 3, and the air storage tank 16 is connected midway to buffer the pressure change, so that the accurate control of the air pressure is realized, the pressure of the pressure regulating plate 10 is also accurately controlled, and the stable operation of the host equipment according to the preset parameters is realized. In the process, the air storage tank 16 plays an important buffering role, so that the pressure of the pressure regulating plate 10 is controlled more gently and accurately by increasing and decreasing the air, and when the pressure regulating plate 10 is slightly moved along with the discharging, the air in the air cylinder 3 preferentially enters the air storage tank 16 for buffering, so that the air in the air cylinder 3 cannot be rapidly pressurized due to unsmooth discharge of a narrow pipeline, and the given pressure on the pressure regulating plate 10 is ensured to be continuously stable.
Whether the main machine equipment such as a rice mill is jammed or not is judged by working current, for example, when the rice mill is provided with a motor 75kW, rated current 145A, normal working current is set at 120A, current fluctuation normal value is +/-10A, current peak protection current 140A is set, when the main machine normal operation current is higher than 140A, current is defined as abnormal increase, namely, the condition that the jam of the discharge occurs is judged, the control panel 11 can acquire the current working current of the rice mill in real time, when the current working current of the main machine is abnormally increased, the control panel 11 sends an electric signal to control the first electromagnetic valve 12 to supply air to a rodless cavity of the air cylinder 3, the second electromagnetic valve 14 to release pressure, and the third electromagnetic valve 17 to be closed, so that the pressure regulating plate 10 is opened rapidly to discharge the material out of the main machine equipment, and the material is prevented from being jammed inside the main machine equipment; after the current of the host equipment is stable, the control panel 11 sends out an electric signal to control the first electromagnetic valve 12 to be closed, the second electromagnetic valve 14 stabilizes the pressure and overflows, the third electromagnetic valve 17 supplies air and maintains the pressure, and the pressure regulating plate 10 is driven by the air cylinder 3 to reset and pressurize; by adjusting the actions of the first solenoid valve 12 and the second solenoid valve 14, the pressure of the pressure adjusting plate 10 is precisely adjusted.
The control logic belongs to the prior art, namely, the control of the inlet and outlet gas to keep the pressure constant is the prior art commonly used at present, and no improvement exists on the method.
As shown in fig. 6, another embodiment of the present utility model further provides a grain processing apparatus, which includes the discharging pressure accurate adjusting device.
The utility model also provides a rice mill, which comprises the discharging pressure accurate adjusting device and is mainly used for husking rice.
The utility model also provides a polishing machine which is mainly used for polishing rice grains, and the polishing machine comprises the discharge pressure accurate adjusting device and is mainly used for polishing rice grains.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. An accurate discharge pressure adjusting device, characterized by comprising:
a discharge nozzle (4);
the pressure regulating plate (10) is rotatably arranged at the discharge port of the discharge nozzle (4) through the pressure door rotating shaft (1);
a rubber pressing plate (9) is fixedly arranged in the discharging nozzle (4) and is attached to the upper end of the pressure regulating plate (10);
the two weight rods (8) are symmetrically arranged at two ends of the pressure door rotating shaft (1), and each weight rod (8) is provided with a weight (7) through threaded connection;
the two air cylinders (3) are arranged on two sides of the discharging nozzle (4), and telescopic rods of the two air cylinders (3) are respectively connected with two ends of the pressure door rotating shaft (1) in a driving way and are used for adjusting the rotating position of the pressure adjusting plate (10);
the air storage device comprises an air storage tank (16), wherein one end of the air storage tank (16) is connected with rod cavities of two air cylinders (3), the other end of the air storage tank is connected with an air inlet pipe interface (19) through a third electromagnetic valve (17) and used for buffering pressure changes in a pipeline, and the air inlet pipe interface (19) is also connected with rodless cavities of the two air cylinders (3);
the second electromagnetic valve (14) is connected with a pipeline between the gas storage tank (16) and the rod cavity of the cylinder (3) in a bypass mode;
the pressure sensor (15) is connected with a pipeline between the gas storage tank (16) and the rod cavity of the cylinder (3) in a bypass manner and is used for collecting real-time pressure values in the pipeline;
the control panel (11) with a man-machine interaction interface is in circuit connection with the second electromagnetic valve (14), the third electromagnetic valve (17) and the pressure sensor (15) and is used for inputting and outputting operation parameters and controlling the second electromagnetic valve (14) and the third electromagnetic valve (17) to act according to real-time operation current of the host equipment so as to maintain the pressure value in the pipeline within a set range.
2. The discharge pressure precise adjustment device according to claim 1, wherein,
and the discharging nozzle (4) is also provided with a discharging door cover (6).
3. The discharge pressure precise adjustment device according to claim 1, wherein,
the two ends of the pressure door rotating shaft (1) are respectively provided with an air cylinder driving rod (2), and the telescopic rods of the two air cylinders (3) are respectively hinged with the corresponding air cylinder driving rods (2) to drive the pressure door rotating shaft (1) to rotate.
4. The discharge pressure accurate adjustment device according to claim 1, wherein the two cylinders (3) are symmetrically hinged on two sides of the discharge nozzle (4) through cylinder fixing seats (5).
5. The discharge pressure accurate adjustment device according to claim 1, characterized in that the air inlet pipe interface (19) is further connected with a pressure regulating valve (18) for stabilizing the air inlet pressure.
6. The discharge pressure accurate adjustment device according to claim 1, characterized in that a first electromagnetic valve (12) connected with the control panel (11) in a circuit is also arranged on a pipeline connecting the air inlet pipe interface (19) and the rodless cavity of the two cylinders (3).
7. The discharge pressure precise adjustment device according to claim 1, wherein,
and a muffler (13) is further arranged at the outlet of the second electromagnetic valve (14).
8. Grain processing apparatus, characterized in that it comprises a discharge pressure fine adjustment device according to any one of claims 1 to 7.
9. A rice mill comprising a discharge pressure fine adjustment device according to any one of claims 1 to 7.
10. A polishing machine, characterized in that it comprises a discharge pressure fine adjustment device as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320931827.9U CN219880015U (en) | 2023-04-23 | 2023-04-23 | Accurate adjusting device of ejection of compact pressure, grain processing equipment, rice mill, burnishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320931827.9U CN219880015U (en) | 2023-04-23 | 2023-04-23 | Accurate adjusting device of ejection of compact pressure, grain processing equipment, rice mill, burnishing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219880015U true CN219880015U (en) | 2023-10-24 |
Family
ID=88408083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320931827.9U Active CN219880015U (en) | 2023-04-23 | 2023-04-23 | Accurate adjusting device of ejection of compact pressure, grain processing equipment, rice mill, burnishing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219880015U (en) |
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2023
- 2023-04-23 CN CN202320931827.9U patent/CN219880015U/en active Active
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