A forward-inclined air-inlet type polishing dust removal workbench

Abstract

The utility model belongs to industrial dust removal equipment technical field, concretely relates to a front -leaning air -intaking type polishing dust removal workstation, including the body and dust removal mechanism in dust removal cavity of body rear part, the body front part is the work area with polishing platform surface, and dust removal mechanism contains the air inlet grille of front -leaning setting, top air outlet board, dust removal air duct, filter piece and negative pressure fan, dust removal air duct is by the oblique air inlet section of matching with air inlet grille angle, transition section and vertical air outlet section in proper order and is linked to form, and the vertical air outlet section end butt -joints air outlet board, the utility model can smooth guide dust -laden airflow, reduce the turbulence and wind resistance in air duct, improve the collection efficiency to the suspended dust.

Description

Technical Field

[0001] This utility model belongs to the technical field of industrial dust removal equipment, specifically relating to a forward-inlet grinding and dust removal workbench. Background Technology

[0002] Grinding and dust removal workbenches are widely used in industrial grinding operations such as hardware processing and furniture manufacturing. They can not only support workpieces to complete grinding and processing, but also collect the dust generated during the grinding process, improve the workshop working environment, and reduce the health hazards of dust to operators.

[0003] However, existing grinding dust removal workbenches mostly use a vertically arranged rear air intake grille structure, with a significant angle at the junction of the air duct inlet and the grille. When dust-laden airflow enters the air duct, it easily generates turbulence and increases wind resistance, making it difficult to efficiently capture suspended dust raised during grinding, thus limiting the overall dust removal effect. Therefore, there is an urgent need for a forward-intake grinding dust removal workbench. Utility Model Content

[0004] This invention solves the problems mentioned in the background art by using a forward-leaning air intake grille combined with a dust removal duct containing an inclined air intake section and a vertical air outlet section to form a smooth dust-collecting airflow path and achieve efficient collection of suspended dust.

[0005] The technical solution of this utility model is achieved as follows: a forward-tilting air-intake grinding and dust removal workbench, comprising: The machine body includes a working area with a grinding table and a dust removal chamber located behind the working area; The dust removal mechanism, located inside the dust removal chamber, includes a forward-leaning air intake grille, an air outlet plate located at the top of the dust removal chamber, a dust removal duct connecting the air intake grille and the air outlet plate, a filter element located inside the dust removal duct, and a negative pressure fan. The dust removal duct includes an inclined air intake section that matches the inclination angle of the air intake grille. The dust removal duct transitions from the inclined air intake section to a vertical air outlet section via a transition section. The end of the vertical air outlet section is connected to the air outlet plate.

[0006] The present invention is further configured such that the forward tilt angle of the air intake grille is 10°-15°, and the tilt angle of the inclined air intake section is consistent with the forward tilt angle of the air intake grille.

[0007] The present invention is further configured such that the transition section is an arc-shaped flow guide structure.

[0008] The present invention is further configured such that the filter element is a filter plate, which is attached to the inner side wall of the air intake grille and is installed and removed synchronously with the air intake grille.

[0009] The present invention is further configured such that a magnetic conductor is embedded on one side edge of the filter plate that is attached to the air intake grille, and a permanent magnet is provided at the corresponding position of the air intake grille. The filter plate is fixed to the inside of the air intake grille by magnetic attraction between the magnetic conductor and the permanent magnet.

[0010] The present invention is further configured such that the negative pressure fan is installed in the vertical air outlet section, located between the filter element and the air outlet plate.

[0011] By adopting the above technical solution, the beneficial effects that this utility model can achieve are: 1. By combining the forward-leaning air intake grille with the inclined air intake section duct with a matching tilt angle, the dust-laden airflow smoothly enters the dust removal duct, reducing airflow turbulence and wind resistance at the air intake and improving the capture efficiency of suspended dust.

[0012] 2. By attaching the filter plate to the inside of the air intake grille and fixing it with magnetic attraction, the filter plate can be installed and removed synchronously with the air intake grille, simplifying the filter material replacement operation and improving the ease of equipment maintenance.

[0013] 3. The inclined air inlet section and the vertical air outlet section are connected by an arc-shaped transition section. With the help of the negative pressure fan installed in the vertical air outlet section, the airflow direction is smooth and the negative pressure output is stable, which improves the airflow delivery stability of the duct. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the dust removal chamber of this utility model; Figure 3 This is a utility model Figure 2 A magnified structural diagram of part A.

[0015] The attached diagram is labeled as follows: 1. Body; 2. Grinding table; 3. Dust removal chamber; 4. Dust removal mechanism; 40. Air inlet grille; 41. Air outlet plate; 42. Dust removal air duct; 420. Inclined air inlet section; 421. Transition section; 422. Vertical air outlet section; 43. Filter element; 44. Negative pressure fan; 5. Magnetic conductor; 6. Permanent magnet. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-3 : Example: This embodiment provides a forward-tilting air intake type grinding and dust removal workbench, including: The machine body 1 includes a working area with a grinding table 2 and a dust removal chamber 3 located behind the working area; The dust removal mechanism 4 is located inside the dust removal chamber 3 and includes a forward-leaning air intake grille 40, an air outlet plate 41 located at the top of the dust removal chamber 3, a dust removal air duct 42 connecting the air intake grille 40 and the air outlet plate 41, a filter element 43 located inside the dust removal air duct 42, and a negative pressure fan 44. The dust removal duct 42 includes an inclined air intake section 420 that matches the inclination angle of the air intake grille 40. The dust removal duct 42 transitions from the inclined air intake section 420 to a vertical air outlet section 422 via a transition section 421. The end of the vertical air outlet section 422 is connected to the air outlet plate 41.

[0017] This specific embodiment provides a forward-inlet grinding and dust removal workbench, which includes a body 1 and a dust removal mechanism 4. The body 1 provides a supporting foundation for the entire device, and the dust removal mechanism 4 is integrated at the rear of the body 1 to collect suspended dust generated during grinding operations.

[0018] The main body 1 is constructed from sheet metal through bending and welding to form a one-piece cabinet structure. Internally, it is divided into a front working area and a rear dust collection chamber 3 by vertical partitions. The vertical partitions are welded and sealed to the inner wall of the main body 1. An open operating space is formed above the working area for placing workpieces and performing grinding operations. The dust collection chamber 3 is a closed, hollow cavity used to house and secure the components of the dust collection mechanism 4. The two areas are separated to prevent dust from overflowing from the dust collection chamber 3 into the working area.

[0019] A grinding table 2 is installed at the top of the working area. The grinding table 2 is a flat rectangular plate used to support the workpiece to be ground. Its edges are welded and fixed to the top of the side wall of the working area. The surface of the table is flat and flush with the front opening of the machine body 1, which facilitates the grinding operation. Dust collection holes are distributed on the surface of the grinding table 2, which run through the upper and lower surfaces of the grinding table 2 and are directly opposite the upper opening of the dust collection chamber located below the grinding table 2. The dust collection chamber is used to collect large particles of dust that settle and fall during the grinding operation. A removable dust collection box is installed inside the chamber. A pull-out opening is opened on the front side wall of the dust collection chamber corresponding to the position of the dust collection box. The dust collection box is supported on both sides on the inner wall of the chamber and can be pulled out along the pull-out opening.

[0020] An air intake grille 40 is installed on the front wall of the dust collection chamber 3 facing the work area. The air intake grille 40 is a rectangular plate with densely perforated surfaces, allowing airflow containing suspended dust to pass through and enter the air duct, while blocking larger debris such as grinding chips and tools from entering the dust collection air duct 42, thus preventing duct blockage. The air intake grille 40 is tilted forward, with its surface inclined towards the work area of ​​the grinding table 2 at an angle of 10°-15°, ensuring that the air intake direction is directly facing the main area where dust is generated during grinding. The air intake grille 40 is embedded in the air intake opening reserved on the front wall of the dust collection chamber 3, with the frame of the air intake opening tilted to match the angle of the air intake grille 40. The four edges of the air intake grille 40 are fixed to the frame of the opening with bolts, and the air intake grille 40 can be removed entirely from the opening after the bolts are loosened.

[0021] The dust removal chamber 3 is equipped with a dust removal duct 42, which is a closed hollow pipe structure used to guide the dust-laden airflow from the air inlet grille 40 to the top air outlet plate 41, providing a closed channel for dust filtration and airflow transportation. The front part of the dust removal duct 42 is an inclined air inlet section 420, the inclination angle of which is consistent with the forward tilt angle of the air inlet grille 40. Its front opening is in contact with the inner surface of the air inlet grille 40, and a sealing strip is attached to the joint. It is then locked and fixed by flange and bolts to ensure that the airflow can only enter the inclined air inlet section 420 from the air inlet grille 40, avoiding air leakage.

[0022] The rear end of the inclined air intake section 420 is connected to a transition section 421. The transition section 421 is an arc-shaped flow guide structure with a smooth arc surface on its inner wall without right angles. It is used to connect the inclined air intake section 420 with the subsequent vertical air outlet section 422, guide the airflow to turn smoothly, and reduce the turbulence generated during the airflow turning process. The front and rear ends of the transition section 421 are integrally formed with the rear end of the inclined air intake section 420 and the lower end of the vertical air outlet section 422, respectively. The inner wall of the connection is smoothly transitioned without any protruding steps.

[0023] The upper end of the transition section 421 is connected to the vertical air outlet section 422, which is a vertically arranged hollow duct that extends upward along the rear inner wall of the dust removal chamber 3. Its outer wall is welded and fixed to the inner wall of the dust removal chamber 3 by multiple sets of support brackets. The support brackets are evenly distributed along the outer wall of the air duct to ensure that the air duct is installed stably. The upper opening of the vertical air outlet section 422 faces the top of the dust removal chamber 3 and corresponds to the position of the air outlet plate 41 at the top.

[0024] A filter plate is attached to the inner wall of the air intake grille 40. The filter plate is a rectangular plate made of porous filter material. Its shape and size are adapted to the inner side of the air intake grille 40. It can intercept suspended dust in the airflow and achieve airflow purification. One side of the filter plate is completely attached to the inner surface of the air intake grille 40, covering all the through-hole areas of the air intake grille 40. This ensures that all airflow entering the air duct must pass through the filter plate for filtration. The filter plate can be removed from the dust removal chamber 3 along with the air intake grille 40, achieving simultaneous installation and removal.

[0025] The filter plate and the air intake grille 40 are fixed together by a magnetic attraction structure. The air intake grille 40 has multiple grooves on its surface facing the filter plate, each groove containing a permanent magnet 6. The permanent magnet 6 is fixed to the air intake grille 40 by adhesive, and its outer surface is flush with the inner surface of the air intake grille 40. Corresponding grooves are formed on the circumferential edge of the filter plate facing the air intake grille 40, each groove containing a magnetic conductor 5. The magnetic conductor 5 is fixed to the filter plate by adhesive, and its outer surface is flush with the side of the filter plate. When the filter plate is attached to the inside of the air intake grille 40, the permanent magnet 6 and the magnetic conductor 5 are positioned one-to-one, and the filter plate is fixed to the air intake grille 40 by magnetic attraction. Applying an outward pulling force can separate the filter plate from the air intake grille 40.

[0026] A negative pressure fan 44 is installed inside the vertical air outlet section 422. The negative pressure fan 44 provides negative pressure power for the airflow circulation of the entire dust removal duct 42, driving the dust-laden airflow to flow in from the air inlet grille 40, be filtered by the duct, and then be discharged from the air outlet plate 41. The negative pressure fan 44 is fixed to the inner wall of the vertical air outlet section 422 by a mounting bracket. One end of the mounting bracket is locked to the inner wall of the duct by bolts, and the other end is connected to the casing of the negative pressure fan 44 by bolts. The negative pressure fan 44 is located downstream of the filter plate and below the air outlet plate 41. Its air intake end faces the lower transition section 421 and the filter plate side, and its air outlet end faces the upper air outlet plate 41 side, so that the airflow passes through the fan from bottom to top in the vertical air outlet section 422.

[0027] The top of the dust removal chamber 3 is provided with an air outlet plate 41. The air outlet plate 41 is a rectangular plate with evenly distributed air outlet holes on its surface. It is used to discharge the filtered and purified clean air to the outside environment, and at the same time, it can prevent dust, water droplets and other foreign objects from falling into the dust removal air duct 42 from the top. The air outlet plate 41 covers the air outlet opening at the top of the dust removal chamber 3. Its four edges are fixed to the frame of the top of the chamber by bolts. The inner surface of the air outlet plate 41 is aligned with the upper opening of the vertical air outlet section 422. A sealing strip is installed between the two to ensure that the discharged airflow is filtered by the dust removal air duct 42.

[0028] A maintenance port is provided on one side wall of the dust removal chamber 3. The size of the maintenance port is adapted to the maintenance operation of the internal components. A sealing cover is provided on the outside of the maintenance port. The edge of the sealing cover is fixed to the cavity wall around the maintenance port by bolts. A sealing strip is installed between the cover and the cavity wall. When it is necessary to maintain the negative pressure fan 44 or the internal components of the air duct, the sealing cover can be removed and the operation can be carried out through the maintenance port.

[0029] When this workbench is in operation, the negative pressure fan 44 is powered on and starts, creating a negative pressure environment inside the dust removal duct 42. Large dust particles generated during grinding settle due to gravity and fall into the dust collection chamber below the grinding table 2 for temporary storage. Fine dust suspended in the air moves forward with the airflow and flows towards the forward-inclined air intake grille 40. It then passes through the through-holes of the air intake grille 40 and comes into contact with the inner filter plate. The suspended dust in the airflow is intercepted by the filter plate, and the preliminarily purified airflow enters the inclined air intake section 420. The airflow travels along the inclined air intake section... The air flows to the transition section 421, smoothly turns after passing through the arc-shaped inner wall, and then enters the vertical air outlet section 422. It then passes through the negative pressure fan 44 from bottom to top, and finally the purified clean air is discharged to the outside through the air outlet hole of the air outlet plate 41, completing the collection of dust and air purification. During maintenance, the fixing bolts of the air inlet grille 40 can be removed to take out the air inlet grille 40 together with the filter plate. After separating the magnetic suction structure, the filter plate can be replaced or cleaned separately. The dust collection box in the dust collection chamber under the table can be pulled out to clean the settled large dust particles. The operation is convenient.

[0030] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A forward-inlet type grinding and dust removal workbench, characterized in that, include: The machine body (1) includes a working area with a grinding table (2) and a dust removal chamber (3) located behind the working area. The dust removal mechanism (4) is located in the dust removal chamber (3) and includes a forward-leaning air intake grille (40), an air outlet plate (41) located at the top of the dust removal chamber (3), a dust removal duct (42) connecting the air intake grille (40) and the air outlet plate (41), a filter element (43) located in the dust removal duct (42), and a negative pressure fan (44). The dust removal duct (42) includes an inclined air intake section (420) that matches the inclination angle of the air intake grille (40). The dust removal duct (42) transitions from the inclined air intake section (420) to the vertical air outlet section (422) via a transition section (421). The end of the vertical air outlet section (422) is connected to the air outlet plate (41).

2. The forward-inlet grinding and dust removal workbench according to claim 1, characterized in that, The forward tilt angle of the air intake grille (40) is 10°-15°, and the tilt angle of the inclined air intake section (420) is consistent with the forward tilt angle of the air intake grille (40).

3. The forward-inlet grinding and dust removal workbench according to claim 1, characterized in that, The transition section (421) is an arc-shaped flow guide structure.

4. The forward-inlet grinding and dust removal workbench according to claim 1, characterized in that, The filter element (43) is a filter plate, which is attached to the inner wall of the air intake grille (40) and is installed and removed synchronously with the air intake grille (40).

5. A forward-inlet grinding and dust removal workbench according to claim 4, characterized in that, A magnetic conductor (5) is embedded on one side edge of the filter plate that fits into the air intake grille (40), and a permanent magnet (6) is provided at the corresponding position of the air intake grille (40). The filter plate is fixed to the inside of the air intake grille (40) by the magnetic attraction between the magnetic conductor (5) and the permanent magnet (6).

6. A forward-tilting air intake type grinding and dust removal workbench according to claim 1, characterized in that, The negative pressure fan (44) is installed in the vertical air outlet section (422) and is located between the filter element (43) and the air outlet plate (41).

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