CN116944815A - Dust collector discharging hopper processing technology - Google Patents

Abstract

The invention relates to a dust collector lower hopper processing technology. First, the required steel raw materials are selected; two hopper plates, upper flange plates, and lower flange plates are cut out from the selected steel raw materials; Draw a bending line on the plate body and bend it along the bending line; connect the bent plates of the two hopper plates along the inclined plane and spot weld them, and then use a welding robot to perform the bending on the inclined plane. Fully welded to form the finished lower hopper; the upper and lower flange plates are welded to the upper and lower sides of the finished lower hopper respectively. The advantage of the present invention is that by re-planning the lower hopper, dividing the lower hopper in half along the middle, unfolding the separated lower hopper, and then cutting, bending and welding according to the unfolded shape, thereby making the welding The seam is located on the main plate of the lower hopper, and the edges of the lower hopper are directly formed into one piece by bending, thus avoiding damage to the welds caused by multiple impacts at the edges.

Description

A kind of dust collector lower hopper processing technology

Technical field

The invention relates to the field of purification equipment processing, specifically a processing technology for the lower hopper of a dust collector.

Background technique

As industrial air pollution becomes increasingly serious, the demand for purification equipment is increasing. The air purifier can filter out smoke and dust in the air. The indoor air is introduced into the air purifier through the fan, filtered by the filter, and then discharged into the environment to achieve the effect of purifying the air. There will be a dust collecting hopper and a dust collecting tube below the purifying tube of the purification equipment. The filtered smoke and dust fall into the dust collecting tube below through the dust collecting hopper. The dust collecting tube centrally collects and cleans the dust.

For example, a dust collector mentioned in patent CN207641177U includes a body, a fan, a pulse backflush solenoid valve, a backflush air pipe, a filter cartridge, a lower hopper, a waste barrel and a control box.

As for the structure of the lower hopper, it generally adopts a four-sided platform structure with a large top and a small bottom. At the same time, since the upper and lower sides of the lower hopper need to be connected to the filter chamber and waste barrel through flanges, when processing the lower hopper, It is also necessary to process flange structures on the upper and lower sides of the lower hopper in advance to facilitate the subsequent installation of the lower hopper.

The processing of the existing lower hopper is as follows: first, cut four preformed plates from the plate, then bend the upper and lower sides of the four preformed plates, and finally, weld the four preformed plates to preform. The middle position of the preformed plate is the quadrangular pyramid-shaped lower hopper, and the bends on the upper and lower sides of the preformed plate are the upper and lower flange structures. The welding seams of the lower hopper structure formed by the above-mentioned processing method are located at the joints of the four sides of the lower hopper. Generally, the four edges of the lower hopper are often more susceptible to collisions and impacts, and this connection The location also requires relatively high strength for the welds. Otherwise, as the number of impacts to the mesh welds increases, the welds will be more likely to be damaged and broken, which will lead to instability in the structure of the entire hopper.

Contents of the invention

The technical problem to be solved by the present invention is to provide a processing technology for the lower hopper of a dust collector to ensure the structural strength of the lower hopper and reduce the requirements for welds.

In order to solve the above technical problems, the technical solution of the present invention is: a dust collector lower hopper processing technology, the innovative point of which is that it includes the following steps

S1: Material selection, first select the required steel raw materials according to the size and performance requirements of the lower hopper that needs to be processed;

S2: Cutting, send the selected steel raw material to the cutting center for cutting, and cut out two hopper plates as well as an upper flange plate and a lower flange plate. The upper end surface of the hopper plate is recessed toward the center of the hopper plate. The arc surface, the lower end surface of the hopper plate body has a straight line segment in the middle and inclined line segments on both sides of the straight line segment. The inclined direction of the inclined line segment is to gradually tilt upward from the side of the inclined line segment close to the straight line segment. The hopper plate Both sides of the body are inclined inclined planes. The inclination direction of the inclined plane is from the connecting side of the inclined plane and the upper end surface of the hopper plate gradually tilting away from the center line of the hopper plate. The upper flange plate is in a square shape. plate, the lower flange plate is an annular plate;

S3: Bending, according to the size of the lower hopper that needs to be processed, draw bending lines on the two hopper plates, and then bend the hopper plates along the drawn bending lines to form a middle The main board and the bending boards on both sides;

S4: Once welded, the bending plates of the two bent hopper plates are butted along the slope. The two bending plates on the same side are butted to form a main plate, thus forming a quadrangular column with four main plates. The outline of the lower hopper is then manually spot welded at the joint of the inclined surfaces, so that the two hopper plates are initially connected to form the semi-finished lower hopper;

S5: Secondary welding, the semi-finished hopper after spot welding is sent to the welding center, and a welding robot is used to fully weld the butt joint of the inclined plane, so that the two hopper plates are connected to form the finished lower hopper;

S6: Three weldings, the upper flange plate and the lower flange plate are welded on the upper and lower sides of the finished lower hopper respectively to form the required lower hopper product.

Furthermore, in step S2, when cutting the hopper plates, it is also necessary to cut an observation window on one of the hopper plates.

Further, before the upper flange plate and the lower flange plate are welded to the finished lower hopper, the upper flange plate and the lower flange plate need to be punched to process the flange connection holes.

The advantage of the present invention is that the processing technology of the present invention re-plans the lower hopper, separates the lower hopper in half along the middle, unfolds the separated lower hopper, and then cuts and bends it according to the expanded shape. And welding, so that the welding seam is located at the main plate of the lower hopper, and the edge of the lower hopper is directly formed by bending, thus avoiding the damage to the welding seam caused by multiple impacts at the edge, and because The welding seam is located on the motherboard, so the requirements for the welding seam are also reduced. Compared with the welding seam at the edge, there is no need for high strength requirements.

In addition, the welding seam is designed to be located on the main plate of the lower hopper, so that even if the welding seam is slightly chipped or damaged due to impact, the structure of the entire lower hopper can still maintain good stability, that is, it can still continue to work.

Description of the drawings

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Figure 1 is a schematic diagram of the lower hopper in the present invention.

Figure 2 is a schematic diagram of the first hopper plate body in the present invention.

Figure 3 is a schematic diagram of the second hopper plate body in the present invention.

Implementation

The following examples can enable those skilled in the art to understand the present invention more comprehensively, but do not limit the present invention to the scope of the described embodiments.

As shown in Figure 1, the lower hopper of a dust collector is composed of four main boards 1 distributed in a pyramid shape. An observation window 4 is opened on one of the main boards 1, and the main board 1 is located at the corresponding position of the observation window 4. There is an observation port, and an upper flange plate 2 and a lower flange plate 3 are respectively connected to the upper and lower sides of the lower hopper. The upper flange plate 2 is a square plate, and the lower flange plate 3 is an annular plate.

The processing technology of the lower hopper is achieved through the following steps:

S1: Material selection, first select the required steel raw materials according to the size and performance requirements of the lower hopper that needs to be processed.

S2: Cutting, send the selected steel raw material to the cutting center for cutting, and cut out the two hopper plates 5, upper flange plate 2, lower flange plate 3, and the hopper plate as shown in Figure 2 and Figure 3 respectively. The upper end surface 51 of the body 5 is an arc-shaped surface that is concave toward the center of the hopper plate body. The lower end surface of the hopper plate body 5 has a straight line segment 52 in the middle and oblique line segments 53 located on both sides of the straight line segment 52. The inclination of the oblique line segment 53 The direction is to gradually slope upward from the side of the inclined line segment 53 close to the straight line segment 52. Both sides of the hopper plate 5 are an inclined inclined plane 54. The inclined direction of the inclined plane 54 is between the inclined plane 54 and the upper end surface of the hopper plate 5. The connecting side of 51 gradually tilts away from the center line of the hopper plate 5. The upper flange plate 2 is a square-shaped plate, and the lower flange plate 3 is an annular plate.

When cutting the hopper plate 5, it is also necessary to cut an observation window 56 on one of the hopper plates 5, as shown in Figure 2. At the same time, it is also necessary to open several observation windows 56 on the hopper plate 5 around the observation window 56. Connection holes to facilitate subsequent installation of observation window 4.

S3: Bending. According to the size of the lower hopper that needs to be processed, draw bending lines 55 on the two hopper plates 5 respectively, and then bend the hopper plates 5 along the drawn bending lines 55. Thus, the main plate 1 in the middle and the bending plates 57 on both sides are formed. The main plate 1 here is one of the main plates that constitute the lower hopper.

S4: Once welded, the bending plates 57 of the two bent hopper plates 5 are butted along the inclined plane. The two bending plates 57 on the same side are butted together to form a main board 1, thus forming a structure with four The quadrangular prism-shaped lower hopper outline of the main plate 1 is then manually spot welded at the joints of the inclined surfaces 54 of the two hopper plates 5, so that the two hopper plates 5 are initially connected and fixed to form the lower hopper semi-finished product.

S5: Secondary welding, the semi-finished hopper after spot welding is sent to the welding center, and a welding robot is used to fully weld the joint of the slope 54 to form a weld 6. As shown in Figure 1, the weld 6 is located in the center of the main board 1 On the line, the two hopper plates 5 are connected to form the finished lower hopper.

S6: Three times of welding, the upper flange plate 2 and the lower flange plate 3 are welded on the upper and lower sides of the finished lower hopper respectively, thereby forming the required lower hopper product.

Before the upper flange plate 2 and the lower flange plate 3 are welded to the finished lower hopper, the upper flange plate 2 and the lower flange plate 3 need to be punched to process the flange connection holes for convenience. Subsequently, the upper flange plate 2 and the lower flange plate 3 are used to fix it with other parts of the dust collector.

In the processing technology of the present invention, first, by analyzing the structure of the lower hopper and re-planning the structure of the lower hopper, the structure of the lower hopper is separated in half along the center lines of the two main boards 1 located on opposite sides. And unfold the half-separated lower hopper, and then process it according to the unfolded shape, cut it from a whole steel plate according to the unfolded shape, and then bend it according to the shape of the lower hopper, and finally weld it, so that the final welding Seam 6 is located at the main plate 1 of the lower hopper, and this kind of welding leaves only two welds at the lower hopper, which reduces the number of welds and makes welding more convenient, while the edges of the lower hopper are directly Integrated molding by bending avoids damage to the edge welds of the lower hopper processed by the traditional method due to multiple impacts at the edges. Moreover, since the weld 6 is located on the main board 1, it is The requirements for weld 6 have also been reduced. Compared with the welds at the edges, there is no need for high strength requirements.

In addition, the welding seam 6 is designed to be located at the main plate 1 of the lower hopper, so that even if the main plate 1 is hit and causes a small range of gaps or damage to the welding seam 6, the entire structure of the lower hopper can still maintain good stability, that is, the The lower hopper of the structure can still continue to work for a period of time. It only needs to be disassembled in time for repair welding or other repairs. The structure of the lower hopper will not be damaged due to damage to the welds at the edges. Stable, resulting in the lower hopper being no longer usable and requiring immediate repair.

Those skilled in the industry should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have other aspects. Various changes and modifications are possible, which fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims (3)

1. A dust collector lower hopper processing technology, which is characterized by: including the following steps S1: Material selection, first select the required steel raw materials according to the size and performance requirements of the lower hopper that needs to be processed; S2: Cutting, send the selected steel raw material to the cutting center for cutting, and cut out two hopper plates as well as an upper flange plate and a lower flange plate. The upper end surface of the hopper plate is recessed toward the center of the hopper plate. The arc surface, the lower end surface of the hopper plate body has a straight line segment in the middle and inclined line segments on both sides of the straight line segment. The inclined direction of the inclined line segment is to gradually tilt upward from the side of the inclined line segment close to the straight line segment. The hopper plate Both sides of the body are inclined inclined planes. The inclination direction of the inclined plane is from the connecting side of the inclined plane and the upper end surface of the hopper plate gradually tilting away from the center line of the hopper plate. The upper flange plate is in a square shape. plate, the lower flange plate is an annular plate; S3: Bending, according to the size of the lower hopper that needs to be processed, draw bending lines on the two hopper plates, and then bend the hopper plates along the drawn bending lines to form a middle The main board and the bending boards on both sides; S4: Once welded, the bending plates of the two bent hopper plates are butted along the slope. The two bending plates on the same side are butted to form a main plate, thus forming a quadrangular column with four main plates. The outline of the lower hopper is then manually spot welded at the joint of the inclined surfaces, so that the two hopper plates are initially connected to form the semi-finished lower hopper; S5: Secondary welding, the semi-finished hopper after spot welding is sent to the welding center, and a welding robot is used to fully weld the butt joint of the inclined plane, so that the two hopper plates are connected to form the finished lower hopper; S6: Three weldings, the upper flange plate and the lower flange plate are welded on the upper and lower sides of the finished lower hopper respectively to form the required lower hopper product. 2. The processing technology of the lower hopper of the dust collector according to claim 1, characterized in that in step S2, when the hopper plate is cut, an observation window needs to be cut on one of the hopper plates. 3. The processing technology of the lower hopper of the dust collector according to claim 1, characterized in that: before the upper flange plate and the lower flange plate are welded to the finished lower hopper, it is necessary to first weld the upper flange plate and the lower flange plate. The flange plate is punched to create flange connection holes.