Rotary vibration sieve

Abstract

The utility model relates to the technical field of spin vibration screens, in particular to a spin vibration screen which comprises a supporting base, a plurality of connecting springs are welded to the periphery of the upper surface of the supporting base, an anti-blocking mechanism is welded to the upper ends of the connecting springs, and a vibration motor is installed in the middle of the lower surface of the anti-blocking mechanism. A plurality of rotary vibration screen assemblies are installed on the upper side of the anti-blocking mechanism, an upper cover is installed at the top end of the rotary vibration screen assembly on the uppermost side, a feeding port is formed in the middle of the upper surface of the upper cover, and an air supply mechanism is installed on one side of the anti-blocking mechanism. By means of the air pump and the anti-blocking mechanism, when the screen mesh is blocked, the air pump conveys air inwards, the air enters the rotary vibration screen from bottom to top, materials blocked on the screen mesh are reopened, if the blocking condition is serious, the valve can be closed firstly, the air stays in the temporary storage box, the valve is opened after the air pressure is enough, and the materials on the screen mesh are blocked. And the gas impacts the screen with larger force.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary vibrating screens, in particular to a rotary vibrating screen. Background Art

[0002] The rotary vibrating screen is a high-precision fine powder screening machine with low noise and high efficiency. It is suitable for screening and filtering materials such as grains, powders, and mucus. The rotary vibrating screen uses an upright motor as the excitation source. Eccentric weights are installed at the upper and lower ends of the motor to convert the motor's rotational motion into horizontal, vertical, and inclined three-dimensional motion, and then transmit this motion to the screen surface, so that the material on the screen surface is vibrated and screened from the center to the outside, and discharged from the discharge port on one side. The rotary vibrating screen is often used in rice processing plants, but the existing rotary vibrating screen cannot control the feed amount of rice when screening rice, resulting in poor screening effect and reduced screening efficiency.

[0003] The utility model patent with the authorization announcement number CN218743163U discloses a new type of rotary vibrating screen, which includes a rotary vibrating screen body, a screen mesh is fixedly arranged inside the rotary vibrating screen body, a discharge port is arranged on the side of the rotary vibrating screen body, a dust cover is fixedly arranged above the rotary vibrating screen body, a feed port is opened on the dust cover, and an adjustment device is arranged at the feed port, the adjustment device includes a bottom plate, a baffle and a lever, the bottom plate is horizontally fixed in the feed port, a plurality of leakage holes are arranged on the bottom plate, a baffle corresponding to the leakage holes is rotatably arranged above the bottom plate, the lever passes through the outer wall of the feed port and is fixedly connected to the side of the baffle, and an opening for the lever to rotate is opened on the outer wall of the feed port. The utility model aims to provide a new type of rotary vibrating screen, which can control the amount of rice feed, improve the screening effect, and improve the screening efficiency.

[0004] Although the above utility model can control the feeding amount of the rotary vibrating screen, if the screened material blocks the screen due to structural or material problems during the use of the rotary vibrating screen, the use of the screen will be affected. In view of this, we propose a rotary vibrating screen. Utility Model Content

[0005] The utility model provides a rotary vibrating screen to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A rotary vibrating screen comprises a supporting base, a plurality of connecting springs are welded around the upper surface of the supporting base, an anti-blocking mechanism is welded on the upper end of the connecting spring, a vibration motor is installed at the middle position of the lower surface of the anti-blocking mechanism, a plurality of rotary vibrating screen assemblies are installed on the upper side of the anti-blocking mechanism, an upper cover is installed on the top of the uppermost rotary vibrating screen assembly, a feed port is installed at the middle position of the upper surface of the upper cover, and an air supply mechanism is installed on one side of the anti-blocking mechanism.

[0008] As a preferred technical solution, the anti-blocking mechanism includes an anti-blocking shell, an outer annular tube installed on the outer side of the lower inner surface of the anti-blocking shell, an inner annular tube installed on the inner side of the lower inner surface of the anti-blocking shell, and a middle annular tube installed between the inner annular tube and the outer annular tube, a plurality of outgoing air ducts are installed on the upper surface of the outer annular tube, a plurality of middle air outlet ducts are installed on the upper surface of the middle annular tube, a plurality of inner air outlet ducts are installed on the upper surface of the inner annular tube, and an air supply duct is connected between the outer annular tube, the middle annular tube and the inner annular tube.

[0009] As a preferred technical solution, the air supply mechanism includes an air pump, a connecting pipe installed on the upper end of the air pump, and a temporary storage box installed on the upper end of the connecting pipe. An air inlet pipe is installed on the upper surface of the temporary storage box, a valve is installed on the outside of the air inlet pipe, and a gas pressure gauge is installed on the upper surface of the temporary storage box.

[0010] As a preferred technical solution, the connecting pipe includes a pipe body, a flange installed on the top end of the pipe body, and a filter element installed inside the pipe body.

[0011] As a preferred technical solution, a plastic hose is connected between the air supply pipe and the air inlet pipe, and the air inlet pipe uses a plastic hard water pipe.

[0012] As a preferred technical solution, a cabinet door is installed on the right side of the temporary storage box, the temporary storage box and the cabinet door are fixedly connected by bolts, and a sealing gasket is provided at the contact position between the cabinet door and the temporary storage box.

[0013] As a preferred technical solution, the pipe body is made of a metal pipe, and a through hole is provided on the lower surface of the temporary storage box for the connecting pipe to pass through.

[0014] As a preferred technical solution, the connecting pipe is connected to the lower surface of the interior of the temporary storage box via a flange, and a sealing gasket is provided on the contact surface between the flange and the temporary storage box.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Through the air pump and anti-blocking mechanism, when the screen is blocked, the air pump will deliver gas inward, and the gas will enter the rotary vibrating screen from bottom to top to reopen the materials blocked on the screen.

[0017] 2. If the blockage is serious, you can close the valve first to keep the gas in the temporary storage box, and then open the valve after the air pressure is sufficient to allow the gas to impact the screen with greater force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the anti-blocking mechanism in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the air delivery mechanism in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the connecting pipe in the utility model.

[0022] The meaning of each number in the figure is:

[0023] 1. Support base; 2. Connecting spring; 3. Vibration motor; 4. Anti-blocking mechanism; 41. Anti-blocking shell; 42. Outer annular tube; 43. Outer air duct; 44. Middle annular tube; 45. Middle outlet air duct; 46. Inner annular tube; 47. Inner outlet air duct; 48. Air supply duct; 5. Vibrating screen assembly; 6. Upper cover; 7. Feed inlet; 8. Air supply mechanism; 81. Air pump; 82. Connecting tube; 821. Tube body; 822. Flange; 823. Filter element; 83. Temporary storage box; 84. Gas pressure gauge; 85. Valve; 86. Air inlet duct. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 , this embodiment provides a technical solution:

[0026] A rotary vibrating screen comprises a supporting base 1, a plurality of connecting springs 2 are welded around the upper surface of the supporting base 1, an anti-blocking mechanism 4 is welded on the upper end of the connecting spring 2, a vibration motor 3 is installed at the middle position of the lower surface of the anti-blocking mechanism 4, a plurality of rotary vibrating screen components 5 are installed on the upper side of the anti-blocking mechanism 4, an upper cover 6 is installed at the top of the uppermost rotary vibrating screen component 5, a feed port 7 is installed at the middle position of the upper surface of the upper cover 6, an air supply mechanism 8 is installed on one side of the anti-blocking mechanism 4, and the anti-blocking mechanism 4 comprises an anti-blocking shell 41, an outer ring installed on the outer side of the lower surface of the anti-blocking shell 41 shaped tube 42, an inner annular tube 46 installed on the inner side of the lower surface of the anti-blocking shell 41, and a middle annular tube 44 installed between the inner annular tube 46 and the outer annular tube 42, a plurality of outgoing air ducts 43 are installed on the upper surface of the outer annular tube 42, a plurality of middle air outlet ducts 45 are installed on the upper surface of the middle annular tube 44, a plurality of inner air outlet ducts 47 are installed on the upper surface of the inner annular tube 46, an air supply duct 48 is connected between the outer annular tube 42, the middle annular tube 44 and the inner annular tube 46, through the above mechanism, the screen can be impacted by gas to prevent the screen from being blocked.

[0027] It should be added that the lower surface of the rotary vibrating screen assembly 5 on the upper side of the anti-blocking mechanism 4 is also made of a screen, the aperture of which is much smaller than that of other screens, ensuring that gas can enter while preventing material from passing through.

[0028] Furthermore, the air supply mechanism 8 includes an air pump 81, a connecting pipe 82 installed on the upper end of the air pump 81, and a temporary storage box 83 installed on the upper end of the connecting pipe 82. An air inlet pipe 86 is installed on the upper surface of the temporary storage box 83, a valve 85 is installed on the outer side of the air inlet pipe 86, and a gas pressure gauge 84 is installed on the upper surface of the temporary storage box 83. The gas pressure inside the temporary storage box 83 can be detected by the gas pressure gauge 84.

[0029] In this embodiment, the connecting pipe 82 includes a pipe body 821 , a flange 822 installed on the top of the pipe body 821 , and a filter element 823 installed inside the pipe body 821 , and the filter element 823 is used to filter impurities inside the gas.

[0030] In this embodiment, a plastic hose is connected between the air supply pipe 48 and the air inlet pipe 86. The air inlet pipe 86 uses a plastic hard water pipe. The plastic hose is used to prevent the vibration of the rotary vibrating screen from affecting the connection.

[0031] In this embodiment, a cabinet door is installed on the right side of the temporary storage box 83, and the temporary storage box 83 is fixedly connected to the cabinet door by bolts. A sealing gasket is provided at the contact position between the cabinet door and the temporary storage box 83 to increase air tightness.

[0032] In this embodiment, the tube body 821 is made of a metal pipe, and a through hole for the connecting tube 82 to pass through is opened on the lower surface of the temporary storage box 83. The connecting tube 82 passes through the temporary storage box 83 and is connected to the air outlet of the air pump 81.

[0033] In this embodiment, the connecting pipe 82 is connected to the lower surface of the temporary storage box 83 via a flange 822 , and a sealing gasket is provided on the contact surface between the flange 822 and the temporary storage box 83 to increase the sealing performance of the contact position between the flange 822 and the temporary storage box 83 .

[0034] Among them, it is worth mentioning that the structures and working principles of the connecting spring 2, vibration motor 3, filter element 823, gas pressure gauge 84, and air pump 81 involved in this embodiment are as well known to those skilled in the art and will not be elaborated here. The rotary vibrating screen assembly 5 involved in this embodiment is a technology that has been disclosed in the prior art and will not be elaborated here.

[0035] During the specific use of the rotary vibrating screen of this embodiment, if the screen is blocked by materials during the operation of the rotary vibrating screen, the air pump 81 can be started to send external gas into the interior of the rotary vibrating screen through the air supply mechanism 8 and the anti-blocking mechanism 4, to impact the screen in the rotary vibrating screen assembly 5, and to flush out the materials blocked on the screen. If the blockage is serious, the air pump 81 can be turned on and the valve 85 can be closed at the same time, and the air pressure in the temporary storage box 83 can be detected by the gas pressure gauge 84. When the air pressure is sufficient, the valve 85 can be opened to allow a large amount of gas to impact the screen at one time, and further disperse the materials.

[0036] When the filter element 823 needs to be replaced, first unscrew the bolts to remove the box door on the right side of the temporary storage box 83, then unscrew the bolts to remove the flange 822 from the lower surface inside the temporary storage box 83, and then the connecting pipe 82 can be pulled out and the filter element 823 inside the connecting pipe 82 can be replaced.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A vibrating screen, comprising a support base (1), characterized in that: A plurality of connecting springs (2) are welded around the upper surface of the support base (1); an anti-blocking mechanism (4) is welded to the upper end of the connecting spring (2); a vibration motor (3) is installed in the middle of the lower surface of the anti-blocking mechanism (4); a plurality of rotary vibrating screen assemblies (5) are installed on the upper side of the anti-blocking mechanism (4); an upper cover (6) is installed at the top of the uppermost rotary vibrating screen assembly (5); a feed port (7) is installed in the middle of the upper surface of the upper cover (6); and an air supply mechanism (8) is installed on one side of the anti-blocking mechanism (4).

2. The rotary vibrating screen according to claim 1, characterized in that: The anti-blocking mechanism (4) comprises an anti-blocking shell (41), an outer annular tube (42) installed on the outer side of the lower surface of the anti-blocking shell (41), an inner annular tube (46) installed on the inner side of the lower surface of the anti-blocking shell (41), and a middle annular tube (44) installed between the inner annular tube (46) and the outer annular tube (42); a plurality of outgoing air ducts (43) are installed on the upper surface of the outer annular tube (42); a plurality of middle air outlet ducts (45) are installed on the upper surface of the middle annular tube (44); a plurality of inner air outlet ducts (47) are installed on the upper surface of the inner annular tube (46); and an air supply duct (48) is connected between the outer annular tube (42), the middle annular tube (44) and the inner annular tube (46).

3. The rotary vibrating screen according to claim 2, characterized in that: The air supply mechanism (8) comprises an air pump (81), a connecting pipe (82) installed at the upper end of the air pump (81), and a temporary storage box (83) installed at the upper end of the connecting pipe (82); an air inlet pipe (86) is installed on the upper surface of the temporary storage box (83); a valve (85) is installed on the outer side of the air inlet pipe (86); and a gas pressure gauge (84) is installed on the upper surface of the temporary storage box (83).

4. The rotary vibrating screen according to claim 3, characterized in that: The connecting pipe (82) comprises a pipe body (821), a flange (822) installed on the top of the pipe body (821), and a filter element (823) installed inside the pipe body (821).

5. The rotary vibrating screen according to claim 3, characterized in that: A plastic hose is connected between the air supply pipe (48) and the air inlet pipe (86), and the air inlet pipe (86) is made of a plastic hard water pipe.

6. The rotary vibrating screen according to claim 3, characterized in that: A cabinet door is installed on the right side of the temporary storage box (83), the temporary storage box (83) and the cabinet door are fixedly connected by bolts, and a sealing gasket is provided at the contact position between the cabinet door and the temporary storage box (83).

7. The rotary vibrating screen according to claim 4, characterized in that: The pipe body (821) is made of a metal pipe, and a through hole for the connecting pipe (82) to pass through is provided on the lower surface of the temporary storage box (83).

8. The rotary vibrating screen according to claim 4, characterized in that: The connecting pipe (82) is connected to the lower surface of the interior of the temporary storage box (83) via a flange (822), and a sealing gasket is provided on the contact surface between the flange (822) and the temporary storage box (83).

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