Negative pressure dust removal device

Abstract

The utility model discloses a negative pressure dust removal device which comprises a machine box, a first motor is fixed in the machine box through a support, an output shaft of the first motor is connected with an eccentric cam, a first support is installed above the first motor, and the section of the first support is in an I shape. The surface of the eccentric cam is connected with the lower surface of the first support, a guide frame is arranged in the case through a support, the first support is connected with a sieve plate, protruding parts at the two ends of the sieve plate are installed in the guide frame through springs, a dust collector is installed below the sieve plate, the dust collector is connected with an exhaust outlet, and the exhaust outlet is connected with a fan. A second motor is installed in the exhaust outlet through a second support, and fan blades are installed on an output shaft of the second motor. According to the scheme, the first motor drives the eccentric cam to rotate, so that the first support and the sieve plate vibrate, dust attached to the surface of a workpiece is vibrated off, and the dust removal effect is improved in cooperation with the dust collector.

Description

Technical Field

[0001] The utility model relates to the technical field of processing dust removal, in particular to a negative pressure dust removal device. Background Technique

[0002] Negative pressure dust removal is a common dust removal method. It creates a negative pressure environment inside the dust removal equipment, sucks dust from the air into the equipment, and then separates and collects it through equipment such as filters.

[0003] After retrieval, a patent with the Chinese patent application number 202220251760.X discloses a negative pressure dust removal system. The negative pressure dust removal system includes: a dust removal main unit; a main pipe, one end of the main pipe is connected to the dust removal main unit; a plurality of branch pipes, the plurality of branch pipes are respectively connected to the main pipe; the main pipe adopts a specification suitable for a fluid flow rate less than that of the branch pipes. The negative pressure dust removal system in the above literature has the following deficiencies: it cannot effectively remove the dust attached to the surface of the object. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a negative pressure dust removal device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A negative pressure dust removal device includes a chassis. A first motor is fixed inside the chassis through a bracket. The output shaft of the first motor is connected to an eccentric cam. A first bracket is installed above the first motor. The cross-section of the first bracket is in the shape of "I". The surface of the eccentric cam is in contact with the lower surface of the first bracket. A guide frame is arranged inside the chassis through a bracket. The first bracket is connected to a sieve plate. The protruding parts at both ends of the sieve plate are installed inside the guide frame through springs. A dust collector is installed below the sieve plate. The dust collector is connected to an air outlet. A second motor is installed inside the air outlet through a second bracket. A fan blade is installed on the output shaft of the second motor.

[0007] As a further scheme of the utility model: baffles are installed on both sides of the sieve plate.

[0008] As a further scheme of the utility model: a dust collection box is arranged below the dust collector, and a filter screen is installed at the end of the air outlet.

[0009] As a further scheme of the utility model: a cleaning door is opened on the chassis.

[0010] As a further solution of the present utility model: a feeding port is provided at the upper part of the chassis, a feeding plate is installed at the feeding port, a collecting box is installed at the lower part of the chassis, a discharging plate is arranged in the collecting box, and both the feeding plate and the discharging plate are arranged obliquely.

[0011] As a further solution of the present utility model: a maintenance door is provided on the side wall of the chassis.

[0012] As a further solution of the present utility model: a wind grille is installed at the end of the side wall of the chassis and the air outlet.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. Through the above solution, the first motor drives the eccentric cam to rotate, so that the first bracket together with the sieve plate vibrates, and the dust attached to the surface of the workpiece is shaken off. Cooperating with the vacuum cleaner, the dust removal effect is improved.

[0015] 2. By setting the baffle, it effectively avoids the workpiece from falling out of the sieve plate during vibration.

[0016] 3. Through the above solution, when the vacuum cleaner works, the dust will be adsorbed and blocked by the filter plate and thus fall into the dust collection box below, avoiding the dust from damaging the second motor.

[0017] 4. By setting the cleaning door, the operator can conveniently take out the dust collection box to clean the dust.

[0018] 5. Through the above solution, the operator can conveniently add the workpiece to be dust-removed into the device, and the workpiece will fall and accumulate in the collecting box after dust removal, which is convenient to take.

[0019] 6. By setting the maintenance door, the operator can conveniently maintain the internal mechanism.

[0020] 7. By setting the wind grille, it effectively avoids foreign impurities from entering the exhaust duct and damaging the internal components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front structural schematic diagram of a negative pressure dust removal device proposed by the present utility model;

[0022] Figure 2 is a back structural schematic diagram of a negative pressure dust removal device proposed by the present utility model;

[0023] Figure 3 is a sectional structural schematic diagram of a negative pressure dust removal device proposed by the present utility model;

[0024] Figure 4 is proposed by the present utility model Figure 3 the structural schematic diagram at A in;

[0025] Figure 5 Schematic structural diagram at the air outlet of a negative pressure dust removal device proposed by the present utility model.

[0026] In the figure: 1 - chassis, 2 - feeding plate, 3 - discharging plate, 4 - cleaning door, 5 - maintenance door, 6 - air grille, 7 - aggregate box, 8 - sieve plate, 9 - vacuum cleaner, 10 - dust collection box, 11 - filter screen, 12 - eccentric cam, 13 - first motor, 14 - first support, 15 - guide frame, 16 - spring, 17 - air outlet, 18 - second motor, 19 - fan blade, 20 - second support, 21 - baffle. Specific embodiments

[0027] The technical solution of the present utility model will be further described in detail below in conjunction with specific embodiments.

[0028] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0029] Embodiment 1

[0030] A negative pressure dust removal device, as Figures 1-5 shown, includes a chassis 1. In order to solve the problem of dust adhering to the surface of the workpiece to be dusted, a first motor 13 is fixed in the chassis 1 through a bracket. The output shaft of the first motor 13 is connected to an eccentric cam 12. A first support 14 is installed above the first motor 13. The cross-section of the first support 14 is in the shape of a "work". The surface of the eccentric cam 12 is in contact with the lower surface of the first support 14. A guide frame 15 is arranged in the chassis 1 through a bracket. The first support 14 is connected to a sieve plate 8. The protruding parts at both ends of the sieve plate 8 are installed inside the guide frame 15 through springs 16. A vacuum cleaner 9 is installed below the sieve plate 8. The vacuum cleaner 9 is connected to an air outlet 17. A second motor 18 is installed in the air outlet 17 through a second support 20. The output shaft of the second motor 18 is installed with a fan blade 19.

[0031] Through the above solution, the first motor drives the eccentric cam to rotate, causing the first support and the sieve plate to vibrate, so that the dust adhering to the surface of the workpiece is shaken off, and cooperating with the vacuum cleaner to improve the dust removal effect.

[0032] This device is further arranged such that baffles 21 are installed on both sides of the sieve plate 8.

[0033] By setting the baffles, it effectively prevents the workpiece from falling out of the sieve plate during vibration.

[0034] The device is further configured such that a dust collection box 10 is provided below the vacuum cleaner 9, and a filter screen 11 is installed at the end of the air outlet 17.

[0035] Through the above solution, when the vacuum cleaner works, dust will be adsorbed and blocked by the filter plate and thus fall into the dust collection box below, preventing the dust from damaging the second motor.

[0036] The device is further configured such that a cleaning door 4 is provided on the chassis 1.

[0037] By providing the cleaning door, the operator can conveniently take out the dust collection box to clean the dust.

[0038] The device is further configured such that a feeding port is provided in the upper part of the chassis 1, a feeding plate 2 is installed at the feeding port, an aggregate box 7 is installed in the lower part of the chassis 1, and a discharging plate 3 is provided in the aggregate box 7. Both the feeding plate 2 and the discharging plate 3 are inclined.

[0039] Through the above solution, the operator can conveniently add the workpiece to be dust-removed into the device. After the workpiece is dust-removed, it will fall and accumulate in the aggregate box, which is convenient to take.

[0040] The device is further configured such that a maintenance door 5 is provided on the side wall of the chassis 1.

[0041] By providing the maintenance door, the operator can conveniently maintain the internal mechanism.

[0042] The device is further configured such that a wind grid 6 is installed on the side wall of the chassis 1 and at the end of the air outlet 17.

[0043] By providing the wind grid, it effectively prevents foreign impurities from entering the exhaust pipe and damaging the internal components.

[0044] Working principle: The operator turns on the device and puts the workpiece to be dust-removed into the device through the feeding plate 2 at the feeding port. The first motor 13 drives the eccentric cam 12 to rotate rapidly, driving the first support 14 to move up and down repeatedly. The sieve plate 8 connected to the first support 14 vibrates up and down in the vertical direction under the action of the guide frame 15, and several springs 16 play a shock-absorbing role; at this time, the second motor 18 below drives the fan blade 19 to rotate to form a negative pressure, and the vacuum cleaner 9 adsorbs the dust shaken off from the workpiece due to vibration into the dust collection box 10; under the action of gravity, the continuously vibrating workpiece finally falls along the inclined sieve plate 8 to the discharging plate 3 and accumulates in the aggregate box 7.

[0045] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A negative pressure dust removal device, comprising a chassis (1), characterized in that: A first motor (13) is fixed in the chassis (1) via a bracket, the output shaft of the first motor (13) is connected to an eccentric cam (12), a first bracket (14) is installed above the first motor (13), the cross section of the first bracket (14) is in the shape of an I, the surface of the eccentric cam (12) and the lower surface of the first bracket (14) are connected, a guide frame (15) is arranged in the chassis (1) via a bracket, the first bracket (14) is connected to a sieve plate (8), the protruding parts at both ends of the sieve plate (8) are installed inside the guide frame (15) via springs (16), a vacuum cleaner (9) is installed below the sieve plate (8), the vacuum cleaner (9) is connected to an exhaust port (17), a second motor (18) is installed in the exhaust port (17) via a second bracket (20), and a fan blade (19) is installed on the output shaft of the second motor (18).

2. A negative pressure dust removal device according to claim 1, characterized in that: Baffles (21) are installed on both sides of the sieve plate (8).

3. A negative pressure dust removal device according to claim 2, characterized in that: A dust collection box (10) is provided below the vacuum cleaner (9), and a filter screen (11) is installed at the end of the air outlet (17).

4. A negative pressure dust removal device according to claim 3, characterized in that: The chassis (1) is provided with a cleaning door (4).

5. A negative pressure dust removal device according to claim 4, characterized in that: A feed port is provided at the upper portion of the chassis (1), a feed plate (2) is installed at the feed port, a collection box (7) is installed at the lower portion of the chassis (1), a discharge plate (3) is arranged in the collection box (7), and both the feed plate (2) and the discharge plate (3) are arranged at an incline.

6. A negative pressure dust removal device according to claim 5, characterized in that: A maintenance door (5) is provided on the side wall of the chassis (1).

7. A negative pressure dust removal device according to claim 6, characterized in that: Wind grilles (6) are installed on the side walls of the chassis (1) and the ends of the air outlet (17).

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