Negative pressure air exhaust air volume adjusting device and polishing system

Abstract

The utility model relates to the technical field of negative pressure air suction air volume regulation of rice polishing machines, and discloses a negative pressure air suction air volume regulation device and a polishing system. Comprising a first air exhaust pipeline, a second air exhaust pipeline, a communicating pipeline, a first air volume adjusting assembly and a second air volume adjusting assembly. The first air exhaust pipeline is used for being connected with a bran collecting hopper of a polishing machine and the air inlet end of a negative pressure air exhaust device. The second air exhaust pipeline is used for being connected with a bran collecting hopper of another polishing machine. The communicating pipeline is communicated with the first air exhaust pipeline and the second air exhaust pipeline; the first air volume adjusting assembly is arranged on the first air exhaust pipeline and used for adjusting the air volume passing through the first air exhaust pipeline. The second air volume adjusting assembly is arranged on the communicating pipeline and used for adjusting the air volume passing through the communicating pipeline. According to the utility model, the two polishing machines can share one fan through the arrangement of the negative pressure air exhaust air volume adjusting device.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing machine exhaust air volume adjustment, in particular to a negative pressure exhaust air volume adjustment device and a polishing system. Background Art

[0002] The rice polishing machine mainly includes a polishing part and a fan. The polishing part consists of a feeding screw propeller, a polishing roller, an octagonal screen drum and a discharge pressure gate. The bran powder on the surface of the rice grains is removed through the friction and extrusion between the rice grains, the polishing roller and the rice screen, forming a smooth and clean surface. A bran collecting hopper is provided below the screen drum. The air inlet end of the fan is connected to the bran collecting hopper to generate negative pressure suction, and the fine rice bran and fine debris generated during the polishing process are discharged out of the machine through the rice screen holes to keep the polishing room environment clean.

[0003] Announcement No. CN218048051U discloses a rice leakage monitoring device for a rice polishing machine, including a pressure controller, an air pressure sensor, a pneumatic damper and an alarm light; the polishing chamber, a bran collecting hopper, a fan flange and a fan are sealed and connected in sequence; the air pressure sensor is arranged inside the bran collecting hopper; the pneumatic damper is arranged between the bran collecting hopper and the fan flange or on any section in the air network pipeline; the alarm light is arranged above the upper frame of the rice polishing machine; the main control box of the rice polishing machine is arranged on the upper frame of the rice polishing machine; the pressure controller is arranged on the side panel of the lower frame of the rice polishing machine; the pressure controller is respectively connected to the air pressure sensor, the alarm light and the main control box of the rice polishing machine.

[0004] In the above-mentioned rice polishing machine, one fan corresponds to one rice bran collecting hopper. When one fan corresponds to only one rice bran collecting hopper, if rice bran produced by multiple rice polishing machines needs to be processed, more fans are required, which increases the number of equipment and costs. Utility Model Content

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose a negative pressure exhaust air volume adjustment device and a polishing system to solve the technical problem in the prior art that multiple polishing machines need to be counterbalanced with multiple fans.

[0006] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a negative pressure exhaust air volume regulating device, comprising:

[0008] A first air extraction pipeline is used to connect a bran collecting hopper of a polishing machine and an air inlet end of a negative pressure air extraction device;

[0009] A second air extraction pipeline is used to connect to a bran collecting hopper of another polishing machine;

[0010] a connecting pipe connecting the first air extraction pipe and the second air extraction pipe;

[0011] a first air volume regulating component, disposed in the first air extraction duct, for regulating the air volume passing through the first air extraction duct; and

[0012] The second air volume regulating component is provided in the communicating duct and is used for regulating the air volume passing through the communicating duct.

[0013] In one embodiment, the first air volume adjustment component includes a first rotating part, a first damper plate and a first driving member, the first rotating part is rotatably connected to the first exhaust pipe, the first damper plate is connected to the first rotating part and can be rotatably built into the first exhaust pipe, and the first driving member is connected to the first rotating part and the connecting pipe for driving the first rotating part to rotate.

[0014] In one embodiment, the first air volume adjustment component further includes a connecting member, the connecting member is connected to the first rotating part, the output shaft of the first driving member is connected to the connecting member, and is connected to the first rotating part via the connecting member.

[0015] In one embodiment, the connecting member includes a first handle and a hinged portion, the first handle is connected to the first rotating portion and extends at least partially along the radial direction of the first rotating portion, one end of the hinged portion is hinged to the output shaft of the first driving member, and the other end is hinged to the first handle.

[0016] In one embodiment, the first handle is L-shaped, one end of the first handle is connected to the first rotating part and is arranged along the radial direction of the first rotating part, and the other end of the first handle is perpendicular to one end of the first handle and connected to the other end of the hinge part.

[0017] In one embodiment, the first air volume adjustment component further includes a fixed bracket, the fixed bracket is connected to the communicating duct, the first driving member is connected to the fixed bracket, and is connected to the communicating duct via the fixed bracket.

[0018] In one embodiment, the second air volume adjustment component includes a second rotating part, a second damper plate and a second driving member, the second rotating part is rotatably connected to the connecting pipe, the second damper plate is connected to the second rotating part and can be rotatably built into the connecting pipe, and the second driving member is connected to the second rotating part and the connecting channel for driving the second rotating part to rotate.

[0019] In one embodiment, the second air volume adjustment assembly further includes a second rotating handle, one end of the second rotating handle is connected to the second rotating part, and the other end at least partially extends along the radial direction of the second rotating part, the fixed end of the second driving member is hinged to the first connecting pipe, and the output end is hinged to the other end of the second rotating handle.

[0020] In one embodiment, the second handle is L-shaped, one end of the second handle extends radially along the second rotating portion, and one end of the second handle is connected to the second rotating portion, the other end of the second handle is perpendicular to the one end of the second handle, and the other end of the second handle is hinged to the output end of the second driving member.

[0021] In a second aspect, the utility model also relates to a polishing system, comprising two polishing machines, a negative pressure exhaust device and the above-mentioned negative pressure exhaust air volume adjustment device.

[0022] Compared with the prior art, the negative pressure exhaust air volume regulating device provided by the utility model is connected to the bran collecting hoppers of the two polishing machines through the first exhaust pipe and the second exhaust pipe respectively, and the first exhaust pipe is connected to the air inlet end of the negative pressure exhaust device. When the negative pressure exhaust device is exhausting air, negative pressure suction can be formed in the bran collecting hopper of one polishing machine through the first exhaust pipe, and negative pressure suction can be formed in the bran collecting hopper of the other polishing machine through the first exhaust pipe, the connecting pipe and the second exhaust pipe. The bran collecting hoppers of the two polishing machines can be exhausted by one negative pressure exhaust device, and there is no need to set a negative pressure exhaust device for each polishing machine, thereby reducing the number of equipment and saving costs.

[0023] The first air volume control assembly independently adjusts the air volume passing through the first exhaust duct, thereby affecting the negative pressure in the connected polisher's bran hopper. The second air volume control assembly, located on the connecting duct, adjusts the air volume passing through this duct. This duct connects both the first and second exhaust ducts, so its adjustment affects the negative pressure in both polisher's bran hoppers. The combined use of the first and second air volume control assemblies allows precise control of the negative pressure in one or both polisher's bran hoppers. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of a negative pressure exhaust air volume regulating device provided by an embodiment of the present utility model;

[0025] Figure 2 This is a structural diagram of a negative pressure exhaust air volume regulating device provided by an embodiment of the present utility model;

[0026] Figure 3 This is a structural diagram of a negative pressure exhaust air volume regulating device provided by an embodiment of the present utility model;

[0027] Figure 4 This is a schematic structural diagram of a polishing system provided by an embodiment of the present utility model;

[0028] Figure 5 It is a structural schematic diagram of a negative pressure exhaust air volume regulating device, a polishing machine and a bran collecting hopper in a polishing system provided by one embodiment of the present invention.

[0029] Description of reference numerals:

[0030] The first exhaust pipe 1;

[0031] Second air extraction pipeline 2;

[0032] Connecting pipe 3;

[0033] A first air volume regulating component 4;

[0034] a first rotating portion 41;

[0035] a first damper plate 42;

[0036] a first driving member 43;

[0037] Fixed bracket 44;

[0038] Connector 45;

[0039] First turning handle 451;

[0040] hinge 452;

[0041] Second air volume adjustment component 5;

[0042] a second rotating portion 51;

[0043] Second damper plate 52;

[0044] A second driving member 53;

[0045] Second turning handle 54;

[0046] Polishing machine 6;

[0047] chaff collecting bucket 7;

[0048] Negative pressure exhaust device 8. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0050] In order to solve the technical problem in the prior art that one polishing machine needs to be equipped with one fan, the utility model provides a negative pressure exhaust air volume adjustment device, which can connect the chaff collecting hoppers of multiple polishing machines through one fan, thereby reducing equipment costs.

[0051] It should be noted that the negative pressure exhaust air volume regulating device described in the present invention is used for but not limited to rice polishing machines, etc. For the convenience of explanation, in the present invention, only the application of the negative pressure exhaust air volume regulating device to the rice polishing machine is used as an example for explanation. The principle of applying the negative pressure exhaust air volume regulating device to other types of equipment is essentially the same as the principle applied to the rice polishing machine, and will not be repeated here.

[0052] See also Figure 1 and Figure 5 , Figure 1 This is a structural schematic diagram of a negative pressure exhaust air volume regulating device in one embodiment of the present invention, the negative pressure exhaust air volume regulating device includes a first exhaust pipe 1, a second exhaust pipe 2, a connecting pipe 3, a first air volume regulating component 4 and a second air volume regulating component 5: the first exhaust pipe 1 is used to connect the chaff collecting hopper 7 of a polishing machine 6 and the air inlet end of the negative pressure exhaust device 8; the second exhaust pipe 2 is used to connect the chaff collecting hopper 7 of another polishing machine 6; the connecting pipe 3 connects the first exhaust pipe 1 and the second exhaust pipe 2; the first air volume regulating component 4 is arranged on the first exhaust pipe 1, for adjusting the air volume passing through the first exhaust pipe 1; the second air volume regulating component 5 is arranged on the connecting pipe 3, for adjusting the air volume passing through the connecting pipe 3.

[0053] The bran collecting hoppers 7 of the two polishing machines 6 are respectively connected through the first exhaust pipe 1 and the second exhaust pipe 2, and the first exhaust pipe 1 is connected to the air inlet end of the negative pressure exhaust device 8. When the negative pressure exhaust device 8 is exhausting, negative pressure suction can be formed in the bran collecting hopper 7 of one polishing machine 6 through the first exhaust pipe 1, and negative pressure suction can be formed in the bran collecting hopper 7 of the other polishing machine 6 through the first exhaust pipe 1, the connecting pipe 3 and the second exhaust pipe 2. The bran collecting hoppers 7 of the two polishing machines 6 can be exhausted by one negative pressure exhaust device 8, and there is no need to set a negative pressure exhaust device 8 for each polishing machine 6, which reduces the number of equipment and saves costs.

[0054] The first air volume regulating assembly 4 can independently regulate the air volume passing through the first exhaust duct 1, thereby affecting the negative pressure of the bran collecting hopper 7 of the polishing machine 6 connected thereto; the second air volume regulating assembly 5 is located on the connecting duct 3 and can regulate the air volume passing through this duct. This duct is connected to both the first and second exhaust ducts 2, so its regulation affects the negative pressure of both polishing machines 6 and the bran collecting hopper 7. Through the coordinated use of the first air volume regulating assembly 4 and the second air volume regulating assembly 5, precise control of the negative pressure of the bran collecting hopper 7 of a single or two polishing machines 6 can be achieved.

[0055] It should be understood that the negative pressure exhaust device 8 can be a negative pressure fan or a negative pressure exhaust pipe in a factory building.

[0056] It should be understood that, except for the second exhaust pipe 2 being connected to the connecting pipe 3 and the bran collecting hopper 7, the rest of the parts are closed.

[0057] It should be understood that the first air volume regulating component 4 can be located between the communicating path of the communicating pipe 3 and the bran collecting hopper 7 of a polishing machine 6, or between the communicating path of the communicating pipe 3 and the negative pressure exhaust device 8. In one embodiment, the first air volume regulating component 4 is located between the communicating path of the communicating pipe 3 and the bran collecting hopper 7 of a polishing machine 6.

[0058] By controlling the first air volume regulating component 4 and the second air volume regulating component 5 , the air volumes passing through the first exhaust duct 1 and the communicating duct 3 can be controlled respectively, and the controls between the two do not interfere with each other.

[0059] It should be understood that the first air volume regulating component 4 can be various valves such as a solenoid valve, a pneumatic valve, etc. Figure 2 As shown, in one embodiment, the first air volume adjustment component 4 includes a first rotating part 41, a first damper plate 42 and a first driving member 43. The first rotating part 41 is rotatably connected to the first exhaust pipe 1. The first damper plate 42 is connected to the first rotating part 41 and can be rotatably built into the first exhaust pipe 1. The first driving member 43 is connected to the first rotating part 41 and the connecting pipe 3, and is used to drive the first rotating part 41 to rotate.

[0060] When it is necessary to adjust the total air volume passing through the first exhaust duct 1, the first driving member 43 is started, and the first driving member 43 drives the first rotating part 41 to rotate. The rotating first rotating part 41 drives the first damper plate 42 to rotate. The rotating first damper plate 42 can adjust the connecting area in the first exhaust duct 1 to adjust the air volume passing through the first exhaust duct 1.

[0061] It should be understood that the first driving member 43 may be a motor, or a combination of a cylinder and a connecting rod, etc.

[0062] It should be understood that the first rotating portion 41 may be a rotating shaft, a rotating pin, a rotating rod, or the like.

[0063] like Figure 2 As shown, in one embodiment, the first air volume adjustment component 4 further includes a connecting member 45, the connecting member 45 is connected to the first rotating part 41, the output shaft of the first driving member 43 is connected to the connecting member 45, and is connected to the first rotating part 41 through the connecting member 45.

[0064] When the air volume passing through the first exhaust duct 1 needs to be adjusted, the first driving member 43 is started, and the first driving member 43 drives the first rotating part 41 to rotate through the connecting member 45. The first driving member 43 has a fast response speed and can quickly control the first damper plate 42 to open or close the first exhaust duct 1.

[0065] In order to realize the connection between the output shaft of the first driving member 43 which moves linearly and the first rotating part 41 which rotates, as shown in FIG. Figure 2 As shown, in one embodiment, the connecting member 45 includes a first handle 451 and a hinged portion 452. The first handle 451 is connected to the first rotating portion 41 and extends at least partially along the radial direction of the first rotating portion 41. One end of the hinged portion 452 is hinged to the output shaft of the first driving member 43, and the other end is hinged to the first handle 451.

[0066] When the first driving member 43 is required to drive the first rotating portion 41 and the first damper plate 42 to rotate, the first driving member 43 is activated. Since the first rotating handle 451 at least partially extends along the radial direction of the first rotating portion 41, when the first driving member 43 pushes the first rotating handle 451 via the hinge portion 452, the first rotating handle 451 can drive the first rotating portion 41 to rotate.

[0067] It should be understood that, in this embodiment, the first driving member 43 may be a linear motor, a cylinder, a hydraulic cylinder, an electric push rod, etc.

[0068] It should be understood that the first driving member 43 may be directly hinged to the hinge portion 452 or may be hinged to the hinge portion 452 via other connecting blocks.

[0069] It should be understood that the first rotating handle 451 can be a rod, a block, etc. arranged along the radial direction of the first rotating part 41. Specifically, Figure 2 As shown, in one embodiment, the first handle 451 is L-shaped, one end of the first handle 451 is connected to the first rotating part 41 and is arranged along the radial direction of the first rotating part 41, and the other end of the first handle 451 is perpendicular to one end of the first handle 451 and connected to the other end of the hinge part 452.

[0070] By setting the first handle 451 to be L-shaped, when the first hinge part 452 pushes the first rotating part 41 to rotate, the first hinge part 452 and the first handle 451 will not be collinear, thereby preventing the first hinge part 452 and the first handle 451 from being stuck or jammed due to the collinearity.

[0071] It should be understood that the first driving member 43 can be directly fixed to the communicating pipe 3 or the first exhaust pipe 1, or can be indirectly fixed to the first exhaust pipe 1 and the communicating pipe 3 through other components. Specifically, Figure 2As shown, in one embodiment, the first air volume adjustment component 4 further includes a fixed bracket 44 , the fixed bracket 44 is connected to the communicating pipe 3 , the first driving member 43 is connected to the fixed bracket 44 , and is connected to the communicating pipe 3 via the fixed bracket 44 .

[0072] By providing the fixing bracket 44 , the first driving member 43 can be fixed to the communicating pipe 3 via the fixing bracket 44 .

[0073] It should be understood that the fixed bracket 44 can be a bracket formed by splicing various profiles, plates, connecting rods, connecting blocks, etc.

[0074] It should be understood that the second air volume adjustment component 5 can be various valves such as a solenoid valve, a pneumatic valve, etc. Figure 3 As shown, in one embodiment, the second air volume adjustment component 5 includes a second rotating part 51, a second air damper plate 52 and a second driving member 53. The second rotating part 51 is rotatably connected to the connecting pipe 3. The second air damper plate 52 is connected to the second rotating part 51 and can be rotatably built into the connecting pipe 3. The second driving member 53 is connected to the second rotating part 51 and the connecting channel, and is used to drive the second rotating part 51 to rotate.

[0075] When it is necessary to adjust the air volume passing through the connecting pipe 3 and the second exhaust pipe 2, the second driving member 53 is started, and the output shaft of the second driving member 53 drives the second rotating part 51 to rotate. The rotating second rotating part 51 drives the second damper to rotate. The rotating second damper adjusts the connecting area in the connecting pipe 3, and then adjusts the air volume passing through the connecting pipe 3.

[0076] It should be understood that the second rotating portion 51 can be a rotating shaft, a rotating pin, a rotating rod, etc.

[0077] Since the output shaft of the second driving member 53 can only be extended and retracted in a straight line, in order to drive the second rotating part 51 to rotate through the second driving member 53, for this purpose, Figure 3 As shown, in one embodiment, the second air volume adjustment component 5 also includes a second handle 54, one end of the second handle 54 is connected to the second rotating part 51, and the other end at least partially extends along the radial direction of the second rotating part 51, and the fixed end of the second driving member 53 is hinged to the first connecting pipe 3, and the output end is hinged to the other end of the second handle 54.

[0078] By setting the second rotating handle 54, when the second driving member 53 needs to drive the second rotating part 51 to rotate, the output shaft of the second driving member 53 is extended and retracted, and drives the second rotating handle 54 to rotate. The second rotating part 51 is driven to rotate by the second rotating handle 54, so that the second driving member 53 can drive the second rotating part 51 and the second damper plate 52 to rotate.

[0079] It should be understood that the second rotating handle 54 can be a rotating shaft, a rotating block, a rotating rod, etc. arranged along the radial direction of the second rotating part 51, or can be an L-shaped rod connected to the second rotating part 51.

[0080] like Figure 3 As shown, in one embodiment, the second handle 54 is L-shaped, one end of the second handle 54 extends radially along the second rotating portion 51, and one end of the second handle 54 is connected to the second rotating portion 51, the other end of the second handle 54 is perpendicular to one end of the second handle 54, and the other end of the second handle 54 is hinged to the output shaft of the second driving member 53.

[0081] By setting the second handle 54 in an L shape, the second handle 54 and the output shaft of the second driving member 53 can be prevented from being collinear, and the output shaft of the second driving member 53 and the second handle 54 can be prevented from being collinear, which may cause the second handle 54 to be stuck or jammed.

[0082] like Figure 4 and Figure 5 As shown, the present invention also relates to a polishing system, comprising two polishing machines 6, a negative pressure exhaust device 8 and the above-mentioned negative pressure exhaust air volume regulating device.

[0083] Among them, the bran collecting hopper 7 of one polishing machine 6 is connected to the first exhaust pipe 1, the bran collecting hopper 7 of another polishing machine is connected to the second exhaust pipe 2, and the air inlet end of the negative pressure exhaust device 8 is connected to the first exhaust pipe 1.

[0084] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A negative pressure exhaust air volume regulating device, characterized in that: include: A first air extraction pipeline is used to connect a bran collecting hopper of a polishing machine and an air inlet end of a negative pressure air extraction device; A second air extraction pipeline is used to connect to a bran collecting hopper of another polishing machine; a connecting pipe connecting the first air extraction pipe and the second air extraction pipe; a first air volume regulating component, disposed in the first air extraction duct, for regulating the air volume passing through the first air extraction duct; and The second air volume regulating component is provided in the communicating duct and is used for regulating the air volume passing through the communicating duct.

2. The negative pressure exhaust air volume regulating device according to claim 1, It is characterized by: The first air volume adjustment component includes a first rotating part, a first damper plate and a first driving member. The first rotating part is rotatably connected to the first exhaust pipe. The first damper plate is connected to the first rotating part and can be rotatably built into the first exhaust pipe. The first driving member is connected to the first rotating part and the connecting pipe for driving the first rotating part to rotate.

3. The negative pressure exhaust air volume regulating device according to claim 2, It is characterized by: The first air volume adjustment component further includes a connecting member, which is connected to the first rotating part. The output shaft of the first driving member is connected to the connecting member and is connected to the first rotating part via the connecting member.

4. The negative pressure exhaust air volume regulating device according to claim 3, characterized in that ； The connecting member includes a first handle and a hinged portion. The first handle is connected to the first rotating portion and extends at least partially along the radial direction of the first rotating portion. One end of the hinged portion is hinged to the output shaft of the first driving member, and the other end is hinged to the first handle.

5. The negative pressure exhaust air volume regulating device according to claim 4, It is characterized by: The first handle is L-shaped, one end of the first handle is connected to the first rotating part and arranged radially along the first rotating part, and the other end of the first handle is perpendicular to one end of the first handle and connected to the other end of the hinge part.

6. The negative pressure exhaust air volume regulating device according to claim 4, characterized in that ； The first air volume adjustment component further includes a fixed bracket, the fixed bracket is connected to the communicating pipe, the first driving member is connected to the fixed bracket, and is connected to the communicating pipe via the fixed bracket.

7. The negative pressure exhaust air volume regulating device according to claim 2, characterized in that; The second air volume adjustment component includes a second rotating part, a second damper plate and a second driving member. The second rotating part is rotatably connected to the connecting pipe. The second damper plate is connected to the second rotating part and can be rotatably built into the connecting pipe. The second driving member is connected to the second rotating part and the connecting channel for driving the second rotating part to rotate.

8. The negative pressure exhaust air volume regulating device according to claim 7, characterized in that; The second air volume adjustment component also includes a second rotating handle, one end of the second rotating handle is connected to the second rotating part, and the other end extends at least partially along the radial direction of the second rotating part, the fixed end of the second driving member is hinged to the first connecting pipe, and the output end is hinged to the other end of the second rotating handle.

9. The negative pressure exhaust air volume regulating device according to claim 8, characterized in that: The second handle is L-shaped, one end of the second handle extends radially along the second rotating part, and one end of the second handle is connected to the second rotating part, the other end of the second handle is perpendicular to one end of the second handle, and the other end of the second handle is hinged to the output shaft of the second driving member.

10. A polishing system, characterized in that: The invention comprises two polishing machines, a negative pressure exhaust device and a negative pressure exhaust air volume regulating device according to any one of claims 1 to 9.

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