Straightening machine dust removal system and straightening machine dust removal method

Abstract

The application discloses a straightening machine dust removal system and a straightening machine dust removal method, and relates to the field of straightening machine dust removal systems, and aims to improve the dust removal efficiency of a straightening machine. The system comprises the following: a straightening machine, which is provided with a lower straightening roller set and a lower roller rack, wherein the lower straightening roller set is installed on the lower roller rack; an upper row of dust removal and blowing guide dust mechanism, which comprises an upper dust guide structure and an upper blowing structure, wherein the upper dust guide structure is installed on the lower roller rack and located below the lower straightening roller set, and the upper blowing structure is installed on the lower roller rack and arranged close to one end of the upper dust guide structure; a middle dust guide structure, which is installed on the lower roller rack and located below the upper dust guide structure; and a lower row of dust removal and blowing dust guide structure, which comprises a lower dust guide structure and a lower blowing structure, wherein the lower dust guide structure is installed on the lower roller rack and located below the middle dust guide structure, and the lower blowing structure is installed on the lower roller rack and arranged close to one end of the lower dust guide structure. The dust removal efficiency of the straightening machine dust removal system is high, the dust removal effect is obvious, the iron oxide skin can be prevented from entering the interior of the straightening machine, the equipment maintenance of the straightening machine is facilitated, the labor cost can be saved, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of hot rolling technology, and in particular, to a dust removal system and method for a straightening machine. Background Technology

[0002] This section is intended to provide background or context for the embodiments of the invention set forth in the claims. The description herein is not an admission that it is prior art simply because it is included in this section.

[0003] A straightening machine is a specialized piece of equipment used to adjust the shape of strip and plate materials. In the field of hot-rolled thick plates, straightening machines are mainly used to straighten incoming plates to ensure that the flatness of the steel plates meets set standards and customer requirements. During transportation, hot steel plates undergo chemical reactions due to temperature changes, producing a large amount of iron oxide scale on their surface. During the straightening process in the straightening machine, the iron oxide scale separates from the steel base material under the pressure of the straightening rollers. The iron oxide scale on the lower surface of the steel plate falls into and around the lower roller system. If not cleaned in time, the iron oxide scale will accumulate inside the lower roller system, affecting the normal operation of the straightening machine. Fine iron powder can also enter the gap between the straightening rollers and the support rollers, causing accelerated wear and tear on the equipment, reducing the service life of the unit, and increasing production costs.

[0004] The existing dust collection system for the straightening machine uses a discharge port on the outer casing to allow material to enter and exit the machine. Debris generated during the straightening process falls into a lower funnel, where multiple vibrating motors discharge it into a bottom water tank. Additionally, multiple vacuum cleaners draw dust from inside the casing into the exhaust pipe, and two exhaust pumps then blow the collected dust into the water tank. The gas inside the water tank is then filtered through a filter and discharged through the inlet. The mixture of dust and water is discharged from the outlet to a designated collection device.

[0005] Therefore, existing dust removal systems for straightening machines require an outer casing to prevent debris and dust from scattering outside the machine, increasing the overall size of the straightening machine and hindering observation of its internal workings. Furthermore, the dust removal method involves mixing debris and dust with water, requiring a water tank below the straightening rollers. This requires multiple devices, including a vacuum cleaner, vibrating motor, exhaust pump, exhaust pipe, and filter, resulting in a complex structure and difficult maintenance. Additionally, the collected mixed water requires further water treatment, complicating the process and reducing the overall practicality of the dust removal system. Summary of the Invention

[0006] The purpose of this invention is to provide a dust removal system and method for a straightening machine, so as to solve the technical problems of existing dust removal systems for straightening machines being large in overall space and having a complex structure that is difficult to maintain.

[0007] The above-mentioned objectives of the present invention can be achieved by the following technical solutions:

[0008] This invention provides a dust removal system for a straightening machine, comprising: a straightening machine having a lower straightening roller assembly and a lower roller frame, the lower straightening roller assembly being mounted on the lower roller frame; an upper dust-guiding mechanism including an upper dust-guiding structure and an upper dust-guiding structure, the upper dust-guiding structure being mounted on the lower roller frame and located below the lower straightening roller assembly, and the upper dust-guiding structure being mounted on the lower roller frame and disposed near one end of the upper dust-guiding structure; an intermediate dust-receiving mechanism being mounted on the lower roller frame and located below the upper dust-guiding structure; and a lower dust-receiving mechanism including a lower dust-receiving structure and a lower dust-guiding structure, the lower dust-receiving structure being mounted on the lower roller frame and located below the intermediate dust-receiving mechanism, and the lower dust-guiding structure being mounted on the lower roller frame and disposed near one end of the lower dust-receiving structure.

[0009] In an embodiment of the present invention, the lower roller frame is provided with a plurality of lower support roller groups for supporting the lower straightening roller group. The plurality of lower support roller groups are arranged along the axial direction of the lower straightening roller group. Each lower support roller group includes a plurality of lower support rollers and a plurality of lower bearing seats. The lower bearing seats are mounted on the lower roller frame, and the lower support rollers are mounted on one side of their corresponding lower bearing seats. The upper dust guiding structure includes a plurality of dust guiding collection grooves. The plurality of dust guiding collection grooves extend along the airflow blowing direction of the upper blowing structure, and the plurality of dust guiding collection grooves are mounted on the top of the lower bearing seats of the plurality of support roller groups.

[0010] In an embodiment of the present invention, the dust collection groove extends downward at an angle from one end near the upper blowing structure toward its dust outlet end.

[0011] In an embodiment of the present invention, the dust collection trough has a first trough side plate and a second trough side plate arranged opposite to each other. The end of the first trough side plate away from the upper blowing structure is bent toward the second trough side plate to form a bent flow guide portion, and a dust outlet is formed between the bent flow guide portion and the end of the second trough side plate away from the upper blowing structure.

[0012] In an embodiment of the present invention, the airflow blowing direction of the upper blowing structure is the straightening direction of the straightening machine, the dust collection groove includes multiple dust collection groove segments, the multiple dust collection groove segments are connected along the straightening direction, and at least some of the dust collection groove segments can rise and fall with the rise and fall of the support roller bearing seat connected to them.

[0013] In an embodiment of the present invention, the intermediate dust collection mechanism includes a plurality of dust collection troughs, which are mounted below the lower support rollers of the plurality of lower support roller groups and located between the lower bearing seats of the plurality of lower support roller groups.

[0014] In an embodiment of the present invention, the intermediate dust collection mechanism further includes a vibration structure, which is installed on the lower roller frame and connected to the plurality of dust collection troughs. The vibration structure can drive the plurality of dust collection troughs to reciprocate in the vertical plane in which their axial direction is located to generate vibration and drive the dust inside to vibrate and displace and be discharged.

[0015] In an embodiment of the present invention, the vibration structure includes a vibration drive component, multiple supports, multiple connecting rods, multiple connecting beams, and multiple connecting sleeves. The supports are fixed to the lower roller frame and hinged to one end of the connecting rod. The other end of the connecting rod is hinged to the connecting beam. The connecting beam connects to multiple dust collection troughs. The connecting sleeve is hinged to the connecting beam and can be connected to the vibration drive component.

[0016] In an embodiment of the present invention, the upper blowing structure includes an upper blowing pipe and a plurality of upper blowing nozzles. The upper blowing pipe is arranged perpendicular to the dust collection groove, and the plurality of upper blowing nozzles are spaced apart on the upper blowing pipe, with the plurality of upper blowing nozzles extending to the opening at one end of the plurality of dust collection grooves.

[0017] In an embodiment of the present invention, the upper purging pipe includes multiple independent upper purging pipe sections, which are arranged along the axial direction of the straightening roller group. Each upper purging pipe section has a quick-connect fitting at both ends for connecting to an air supply pipe.

[0018] In an embodiment of the present invention, the lower dust receiving structure includes a lower dust receiving plate and a lower dust discharge plate. The lower dust receiving plate is laid below the intermediate dust receiving mechanism. One end of the lower dust discharge plate is connected to the dust discharge end of the lower dust receiving plate, and the other end of the lower dust discharge plate extends downward at an angle from the lower roller frame.

[0019] In an embodiment of the present invention, the end of the intermediate dust collection mechanism away from the upper blowing structure forms its dust outlet end, and the end of the lower dust collection structure away from the lower blowing structure forms its dust outlet end. The dust removal system of the straightening machine also includes a dust conveying device and a dust chute. One end of the dust chute is connected to the dust outlet end of the intermediate dust collection mechanism and the dust outlet end of the lower dust collection structure, and the other end of the dust chute extends downward at an angle above the dust conveying device.

[0020] The present invention also provides a dust removal method for a straightening machine, which adopts the above-mentioned dust removal system for a straightening machine. The dust removal method for a straightening machine includes the following steps: during the process of the straightening machine straightening the sheet metal, the upper blowing structure, the intermediate dust removal mechanism, and the dust conveying mechanism are continuously operated; during the process of the straightening machine straightening the sheet metal, the lower blowing structure is intermittently operated.

[0021] The features and advantages of this invention are:

[0022] The dust removal system for the straightening machine of the present invention, by arranging an upper dust-guiding mechanism, an intermediate dust-receiving mechanism, and a lower dust-receiving mechanism below the lower straightening roller group of the straightening machine, allows the iron oxide scale separated from the surface of the sheet metal during the straightening process to fall to the upper dust-guiding structure below, and be quickly blown to the intermediate dust-receiving mechanism below by the upper dust-guiding mechanism. Even if the iron oxide scale fails to fall accurately to the intermediate dust-receiving mechanism or spills from the intermediate dust-receiving mechanism, it can be caught by the lower dust-receiving structure below and will not fall into the interior of the lower roller frame. Then, it is transferred away by the lower dust-guiding structure, thereby realizing a multi-stage dust removal process. Therefore, the dust removal system for the straightening machine of the present invention has a safe and reasonable structural design, high dust removal efficiency, and obvious dust removal effect. It can prevent iron oxide scale from entering the interior of the straightening machine and affecting the normal operation of the straightening machine, thus facilitating the equipment maintenance of the straightening machine, greatly saving labor costs, and improving production efficiency.

[0023] The dust removal method for the straightening machine of the present invention, by continuously operating the upper blowing structure, helps to ensure the timeliness and effectiveness of dust removal. Since less iron oxide scale is collected on the lower dust receiving structure, the dust removal cost can be reduced by intermittently operating the lower blowing structure. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the dust removal system of the straightening machine in this invention.

[0026] Figure 2 This is a top view schematic diagram of the upper-row blowing and dust guiding mechanism in this invention.

[0027] Figure 3 This is a three-dimensional schematic diagram of the upper dust blowing and guiding mechanism and the middle dust receiving mechanism in this invention.

[0028] Figure 4 This is a partially enlarged view of the upper dust blowing and guiding mechanism and the middle dust receiving mechanism in this invention.

[0029] Figure 5 This is a side view of the upper dust blowing and guiding mechanism and the middle dust receiving mechanism in this invention.

[0030] Figure 6 This is a schematic diagram of the intermediate dust collection mechanism in this invention.

[0031] Figure 7 This is a schematic diagram of the lower-level blowing and dust collection mechanism in this invention.

[0032] In the picture:

[0033] 1. Straightening machine; 11. Lower straightening roller assembly; 111. Lower straightening roller; 12. Lower support roller assembly; 121. Lower support roller; 122. Lower bearing housing; 13. Lower roller frame; 14. Upper straightening roller assembly; 141. Upper straightening roller; 15. Upper support roller assembly; 151. Upper support roller; 152. Upper bearing housing; 16. Straightening channel;

[0034] 2. Upper dust blowing and guiding mechanism; 21. Upper dust guiding structure; 211. Dust collection trough; 212. Dust collection trough section; 213. First trough side plate; 214. Second trough side plate; 215. Bending guide section; 216. Dust outlet; 22. Upper blowing structure; 221. Upper blowing pipe; 222. Upper blowing nozzle;

[0035] 3. Intermediate dust collection mechanism; 31. Dust collection trough; 32. Vibration structure; 321. Connecting beam; 322. Support; 323. Connecting rod; 324. Earring plate; 325. Connecting sleeve; 326. Pin;

[0036] 4. Lower dust collection mechanism; 41. Lower dust collection structure; 411. Lower dust collection plate; 412. Lower dust discharge plate; 42. Lower blowing structure; 421. Lower blowing pipe; 422. Lower blowing nozzle;

[0037] 5. Dust chute;

[0038] 6. Dust conveying device. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Implementation Method 1

[0041] like Figure 1As shown, the present invention provides a dust removal system for a straightening machine, comprising: a straightening machine 1 having a lower straightening roller group 11 and a lower roller frame 13, the lower straightening roller group 11 being mounted on the lower roller frame 13; an upper dust guiding mechanism 2 including an upper dust guiding structure 21 and an upper blowing structure 22, the upper dust guiding structure 21 being mounted on the lower roller frame 13 and located below the lower straightening roller group 11, and the upper blowing structure 22 being mounted on the lower roller frame 13 and located near one end of the upper dust guiding structure 21; an intermediate dust collection mechanism 3 being mounted on the lower roller frame 13 and located below the upper dust guiding structure 21; and a lower dust collection mechanism 4 including a lower dust collection structure 41 and a lower blowing structure 42, the lower dust collection structure 41 being mounted on the lower roller frame 13 and located below the intermediate dust collection mechanism 3, and the lower blowing structure 42 being mounted on the lower roller frame 13 and located near one end of the lower dust collection structure 41.

[0042] The dust removal system of the straightening machine of the present invention is used to remove the dust generated during the process of the straightening machine 1 straightening the plate. The dust includes, but is not limited to, iron oxide scale, iron powder and other dust separated from the plate due to the extrusion and straightening, and may also include other materials separated from the plate.

[0043] like Figure 1 As shown, the dust removal system for the straightener of the present invention, by arranging an upper dust-guiding mechanism 2, an intermediate dust-receiving mechanism 3, and a lower dust-receiving mechanism 4 below the lower straightening roller group 11 of the straightener 1, allows the iron oxide scale separated from the surface of the plate during the straightening process of the straightener 1 to fall to the upper dust-guiding structure 21 below, and be quickly blown to the intermediate dust-receiving mechanism 3 below by the upper dust-guiding structure 22. Even if the iron oxide scale fails to fall accurately to the intermediate dust-receiving mechanism 3 or spills from the intermediate dust-receiving mechanism 3, it can be caught by the lower dust-receiving structure 41 below and will not fall into the interior of the lower roller frame 13. Then, it is transferred away by the blowing of the lower dust-guiding structure 42, thereby realizing a multi-stage dust removal process. Therefore, the dust removal system for the straightener 1 of the present invention has a safe and reasonable structural design, high dust removal efficiency, and obvious dust removal effect. It can prevent iron oxide scale from entering the interior of the straightener 1 and affecting the normal operation of the straightener 1, thereby facilitating the equipment maintenance of the straightener 1, greatly saving labor costs, and improving production efficiency.

[0044] Furthermore, by setting up the upper blowing structure 22, not only can its blowing airflow transport the iron oxide scale collected by the upper dust guiding structure 21 to the intermediate dust receiving mechanism 3, but it can also blow off the iron oxide scale attached to the upper straightening roller group 14, thereby preventing iron oxide scale from depositing on the upper straightening roller group 14 and affecting its operation. By setting up the lower blowing structure 42, it is beneficial to blow away the iron oxide scale collected on the lower dust receiving structure 41 without dead angles. Preferably, the blowing range of the upper blowing structure 22 can cover the top surface of the upper dust guiding structure 21 and the lower surface of the upper straightening roller group 14, and the lower dust receiving structure 41 can preferably cover the entire planar area between the upper dust guiding structure 21 and the lower roller frame 13.

[0045] Specifically, such as Figure 1 As shown, the lower straightening roller group 11 includes multiple lower straightening rollers 111 arranged along the straightening direction X (i.e., the direction of material movement). The lower roller frame 13 is provided with multiple lower support roller groups 12 for supporting the lower straightening roller group 11. Figure 2 As shown, multiple lower support roller groups 12 are arranged along the axial direction Z of the lower straightening roller group 11, combined with... Figure 3 As shown, the lower support roller assembly 12 includes multiple lower support rollers 121 and multiple lower bearing seats 122. The lower bearing seats 122 are mounted on the lower roller frame 13, and the lower support rollers 121 are mounted on one side of their corresponding lower bearing seats 122. Figure 1 As shown, the straightening machine 1 also includes an upper roller frame (not shown) and an upper straightening roller group 14. The upper straightening roller group 14 is mounted on the upper roller frame and includes a plurality of upper straightening rollers 141 arranged along the straightening direction X. The upper roller frame is provided with a plurality of upper support roller groups 15 for supporting the upper straightening roller group 14. The plurality of upper support roller groups 15 are located above the upper straightening roller group 14, and the upper straightening roller group 14 is located above the lower straightening roller group 11. The gap between the upper straightening roller group 14 and the lower straightening roller group 11 forms a straightening channel 16 for the plate to move through and squeeze and straighten the plate. The upper support roller group 15 includes multiple upper support rollers 151 and multiple upper bearing seats 152. The connection relationship between the upper support rollers 151, upper bearing seats 152 and upper roller frame is basically the same as the connection relationship between the lower support rollers 121, lower bearing seats 122 and lower roller frame 13. For more specific structures, please refer to the straightening machine of the prior art, which will not be described in detail here.

[0046] In addition, such as Figure 1 As shown, in order to promptly transfer dust from the working area of ​​the straightening machine 1, in this embodiment of the invention, the end of the intermediate dust collection mechanism 3 furthest from the upper blowing structure 22 forms its dust outlet end, and the end of the lower dust collection structure 41 furthest from the lower blowing structure 42 forms its dust outlet end. The dust removal system of the straightening machine 1 also includes a dust conveying device 6 and a dust chute 5. One end of the dust chute 5 is connected to the dust outlet ends of the intermediate dust collection mechanism 3 and the lower dust collection structure 41, and the other end of the dust chute 5 extends downward at an angle above the dust conveying device 6. Specifically, the dust conveying device 6 is generally arranged on the lower side of the straightening machine 1. The dust conveying device 6 can be a belt conveyor, a transport vehicle, or other conveying device. Alternatively, the dust can first slide down the dust chute 5 into a container, and then the container can be transferred.

[0047] like Figure 2 As shown, in the embodiments of the present invention, the blowing direction of the upper blowing structure 22 is preferably the same as the straightening direction X, which is beneficial to improving the dust removal effect. Figure 2As shown, in an embodiment of the present invention, the upper blowing structure 22 includes an upper blowing pipe 221 and a plurality of upper blowing nozzles 222. The upper blowing pipe 221 is arranged perpendicular to the dust collection groove 211, and the plurality of upper blowing nozzles 222 are spaced apart on the upper blowing pipe 221, extending to the openings at one end of the plurality of dust collection grooves 211. Specifically, the upper blowing pipe 221 can be fixed to the lower roller frame 13 by pipe clamps or other fixing structures. The plurality of upper blowing nozzles 222 are arranged in a one-to-one correspondence with the plurality of dust collection grooves 31.

[0048] like Figure 2 As shown, in this embodiment of the invention, the upper purging pipe 221 includes multiple independent upper purging pipe sections, which are arranged along the axial direction Z of the lower straightening roller group 11. Each upper purging pipe section has quick-connect fittings at both ends for connecting to the air supply line. By equipping both ends of the purging pipe sections with quick-connect fittings, quick connection and disconnection with the compressed air supply line in the workshop can be achieved. This allows for online purging, and also enables on-site inspection of the upper purging nozzles 222, airflow, etc., after the lower straightening roller group 11 is removed from the straightener 1. By segmenting the upper purging pipe into multiple independent upper purging pipe sections, the operation of each upper purging pipe section can be controlled separately by purging control valves configured on the air supply line. This allows for selective operation of each upper purging pipe section based on the straightening process, the width of the plate, and the amount of iron oxide scale.

[0049] In this example, three upper blowing pipe sections are arranged along the axial direction of the lower straightening roller group 11. When the width of the plate (i.e., the length of the plate in the axial direction of the lower straightening roller group 11) is narrow, there is no iron oxide scale or only a small amount of iron powder near the two ends of the lower straightening roller group 11 because there is no extrusion of the plate. Only the middle blowing pipe section can be opened, while the blowing pipe sections on both sides can be closed. The blowing airflow in the middle blows the iron oxide scale in the guide collection tank to its dust outlet end and falls from the dust outlet 216 on one side to the dust collection tank 31 below under the guidance of the bending guide section 215. When the width of the plate is wide, all three blowing pipe sections can be opened and guided to the dust collection tank 31 below in the same way.

[0050] Combination Figure 1 , Figure 2 as well as Figure 3As shown, in the embodiment of the present invention, the upper dust guiding structure 21 includes a plurality of dust guiding collection grooves 211. The plurality of dust guiding collection grooves 211 extend along the airflow blowing direction of the upper blowing structure 22, and are installed on the top of the lower bearing seats 122 of the plurality of lower support roller groups 12. By arranging the plurality of dust guiding collection grooves 211 on the top of the lower bearing seats 122 of the plurality of lower support roller groups 12, on the one hand, the iron oxide scale falling during the upper straightening process can be collected in a timely manner, which is beneficial to improving the timeliness of dust removal, and preventing the iron oxide scale from falling into the interior of the lower support rollers 121 and the lower bearing seats 122, which is beneficial to the normal operation of the lower support roller groups 12. On the other hand, the gap space between the lower straightening roller group 11 and the lower bearing seat 122 is rationally utilized. That is to say, the plurality of dust guiding collection grooves 211 added in the present invention do not increase the height of the straightening machine 1, making the overall structure of the dust removal system of the straightening machine 1 more compact and reducing the space occupied.

[0051] Specifically, in combination Figure 4 As shown, the dust collection trough 211 is generally a strip-shaped trough structure, with a bottom plate and a first side plate 213 and a second side plate 214 arranged opposite to each other. The first side plate 213 and the second side plate 214 can prevent iron oxide scale from falling into the lower bearing seat 122 and the lower support roller 121 on the side. The iron oxide scale falls into the dust collection trough 211 from the top opening. The opening of the dust collection trough 211 near the upper blowing structure 22 forms the inlet of the blowing airflow. Furthermore, the dust collection trough 211 extends downward at an angle from its end near the upper blowing structure 22 to its dust outlet end, so that the iron oxide scale in the dust collection trough 211 can fall into the intermediate dust collection mechanism 3 under the combined action of the blowing airflow and its own gravity.

[0052] To control the straightening effect of the sheet metal, at least a portion of the lower support roller 121 is vertically adjustable, thereby driving the lower straightening roller 111 it supports to rise and fall. Specifically, the vertically adjustable lower straightening roller 111 includes, but is not limited to, the edge lower straightening roller 111 near the inlet end of the straightening channel 16 and near the outlet end of the straightening channel 16.

[0053] Therefore, to avoid interference between the dust collection trough 211 and the liftable lower support roller 121, in this embodiment of the invention, the dust collection trough 211 includes multiple dust collection trough segments 212, which are connected along the straightening direction X. At least some of the dust collection trough segments 212 can rise and fall with the lower bearing seat 122 to which they are connected. Specifically, the multiple dust collection trough segments 212 can overlap each other or be arranged adjacent to each other.

[0054] like Figure 3 , Figure 4 as well as Figure 5As shown, in an embodiment of the present invention, the intermediate dust collection mechanism 3 includes multiple dust collection troughs 31, which are mounted below the lower support rollers 121 of the multiple lower support roller groups 12 and located between the lower bearing seats 122 of the multiple lower support roller groups 12. By arranging the multiple dust collection troughs 31 below the lower support rollers 121, the gap space between the lower support rollers 121 and the bottom of the lower bearing seats 122 is rationally utilized. In other words, the multiple dust collection troughs 31 added in the present invention do not increase the height of the straightening machine 1, further improving the compactness of the overall structure, reducing the space occupied by the dust removal system of the straightening machine 1, and minimizing the height difference between the dust collection troughs 31 and the dust collection troughs 211, thereby reducing the possibility of iron oxide scale falling to other parts during the process of falling from the dust collection troughs 211. Specifically, the dust outlet 216 of the dust collection trough 211 is opened on one of the trough side plates. More specifically, the dust outlet 216 is opened on the trough side plate of the dust collection trough section 212 furthest from the upper blowing structure 22.

[0055] Furthermore, such as Figure 3 and Figure 4 As shown, to improve the dust guiding effect, the blowing airflow of the upper blowing structure 22 is used to guide the iron oxide scale in the dust collection trough 211 to the dust collection trough 31 on one side. The end of the first side plate 213 of the dust collection trough 211 away from the upper blowing structure 22 is bent towards the second side plate 214 to form a bent guide part 215, and a dust outlet 216 is formed between the bent guide part 215 and the end of the second side plate 214 away from the upper blowing structure 22, which is the outlet of the dust collection trough 211. By setting the bent guide section 215, on the one hand, it can guide the iron oxide scale to flow out from the dust outlet 216 to prevent the fine iron oxide powder from falling to other parts during the blowing process and affecting the normal operation of the equipment. On the other hand, the channel between the bent guide section 215 and the second groove side plate 214 on the opposite side gradually narrows along the airflow blowing direction, which can gather the blowing airflow and avoid the blowing airflow from having a poor blowing effect due to excessive air pressure attenuation when it flows to the end of the dust collection groove 211 away from the upper blowing structure 22.

[0056] Specifically, the dust collection trough 31 is generally a strip-shaped trough structure. The length of the dust collection trough 31 is greater than the length of the guide collection trough, and the length of the dust collection trough 31 is similar to the width of the lower roller frame 13 (i.e., the axial length of the lower roller frame 13 in the lower straightening roller group 11). The dust collection trough 31 has a bottom plate and two oppositely arranged side plates, which can prevent iron oxide scale from falling from the side. The length of each dust collection trough 211 is not specifically limited and can be set according to the arrangement of the lower support rollers 121 of each lower support roller group 12. When the horizontal distance between the lower support roller 121 furthest from the upper blowing structure 22 in the lower support roller group 12 and the lower roller frame 13 is large, the dust outlet 216 of the dust collection trough installed on the lower support roller group 12 can be set to correspond to the horizontal distance between the lower support rollers 121 furthest from the upper blowing structure 22 in the lower support roller group 12 and the lower roller frame 13 is small, the dust outlet 216 of the dust collection trough installed on the lower support roller group 12 can be set to correspond to the distance between two of the lower support rollers 121.

[0057] like Figure 1 , Figure 3 as well as Figure 6 As shown, in an embodiment of the present invention, the intermediate dust collection mechanism 3 further includes a vibration structure 32. The vibration structure 32 is mounted on the lower roller frame 13 and connected to multiple dust collection troughs 31. The vibration structure 32 can drive the multiple dust collection troughs 31 to reciprocate in the vertical plane where their axial direction is located, thereby generating vibration and causing the dust inside to vibrate and displace and be discharged. The dust mainly generates vibration displacement in the length direction of the dust collection trough 31, and then transfers to the dust chute 5.

[0058] like Figure 6As shown, the vibration structure 32 includes a vibration drive component (not shown), multiple supports 322, multiple connecting rods 323, multiple connecting beams 321, and multiple connecting sleeves 325. The supports 322 are fixed to the lower roller frame 13 and hinged to one end of the connecting rods 323. The other end of the connecting rods 323 is hinged to the connecting beams 321. The connecting beams 321 connect multiple dust collection troughs 31. The connecting sleeves 325 are hinged to the connecting beams 321 and can be connected to the vibration drive component. Specifically, there are two connecting beams 321, and both ends of each dust collection trough 31 are connected to the two connecting beams 321. The supports 322 and connecting rods 323, and the connecting rods 323 and connecting beams 321, are respectively hinged by pins 326 that are horizontally perpendicular to the dust collection troughs 31. The connecting beams 321 are provided with ear ring plates 324 for hinged to the connecting sleeves 325. Multiple supports 322, multiple connecting rods 323, and multiple connecting sleeves 325 are all spaced apart and correspondingly arranged along the length direction of the connecting beam 321, and the number can be two as in this embodiment, or more. The vibration driving component can be a driving component capable of linear motion in the prior art, such as a telescopic cylinder, a worm gear structure, etc. The vibration driving component pushes and pulls the connecting sleeves 325 along the length direction of the dust collection groove 31, thereby driving the dust collection groove 31 to perform periodic motion in the vertical plane where its axis is located.

[0059] like Figure 7 As shown, in this embodiment of the invention, the lower dust collection structure 41 includes a lower dust collection plate 411 and a lower dust discharge plate 412. The lower dust collection plate 411 is laid below the intermediate dust collection mechanism 3. One end of the lower dust discharge plate 412 is connected to the dust discharge end of the lower dust collection plate 411, and the other end of the lower dust discharge plate 412 extends downwards out of the lower roller frame 13. Specifically, one end of the lower dust discharge plate 412 extending out of the lower roller frame 13 is connected to one end of the dust chute 5. Dust such as iron oxide scale that does not fall into the intermediate dust collection mechanism 3 will fall onto the lower dust collection plate 411, and then be blown to the lower dust removal plate by the lower blowing structure 42. Then, the dust such as iron oxide scale will slide down into the dust chute 5 under its own gravity, and finally slide down along the dust chute 5 to the dust conveying device 6. By connecting the lower dust receiving plate 411 to the chute through the inclined lower dust discharge plate 412, dust can be prevented from being blown out of the straightener 1 and failing to fall accurately into the dust conveying device 6.

[0060] Furthermore, the lower purging structure 42 can adopt a similar structure to the upper purging structure 22, namely, including a lower purging pipe 421 and multiple lower purging nozzles 422, with the multiple lower purging nozzles 422 spaced apart on the lower purging pipe 421. The lower purging pipe 421 can also be fixed to the lower roller frame 13 by pipe clamps or other fixing structures. The lower dust receiving plate 411 and the lower dust discharge plate 412 work together to basically cover the entire planar area within the lower roller frame 13 below the intermediate dust receiving mechanism 3. Since the lower dust receiving plate 411 has a planar plate structure, in order to better cover the upper surface of the lower dust receiving plate 411 with the purging airflow layer formed by the purging airflow of the multiple lower purging nozzles 422, the lower purging nozzles 422 can be fan-shaped nozzles.

[0061] Implementation Method 2

[0062] This invention also provides a dust removal method for a straightening machine, employing a straightening machine dust removal system. The method includes the following steps: during the straightening process of the straightening machine 1 on the sheet metal, the upper blowing structure 22, the intermediate dust-receiving mechanism 3, and the dust conveying mechanism are continuously operated; during the straightening process of the straightening machine 1 on the sheet metal, the lower blowing structure 42 is operated intermittently. The specific structure, working principle, and beneficial effects of the straightening machine dust removal system in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

[0063] The dust removal method for the straightening machine of the present invention, by continuously operating the upper blowing structure 22, helps to ensure the timeliness and effectiveness of dust removal. Since the lower dust receiving structure 41 collects less iron oxide scale, the lower blowing structure is operated intermittently, which helps to reduce the cost of dust removal.

[0064] Specifically, the intermittent operation of the lower blowing structure 42 can be achieved by the operator intermittently operating the lower blowing structure 42 to blow dust according to the actual situation on site, such as the amount of dust on the lower dust collection structure 41, or by automatically intermittently operating the lower blowing structure 42 to blow dust according to a blowing frequency set according to the straightening process, such as blowing for 5 minutes every 1 hour, blowing for 10 minutes every 2 hours, etc.

[0065] The above descriptions are merely a few embodiments of the present invention. Those skilled in the art can make various modifications or variations to the embodiments of the present invention based on the content disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. A dust removal system for a straightening machine, characterized in that, include: A straightening machine has a lower straightening roller assembly and a lower roller frame, wherein the lower straightening roller assembly is mounted on the lower roller frame; The upper dust guiding mechanism includes an upper dust guiding structure and an upper dust guiding structure. The upper dust guiding structure is installed on the lower roller frame and located below the lower straightening roller group. The upper dust guiding structure is installed on the lower roller frame and is located at one end close to the upper dust guiding structure. An intermediate dust-collecting mechanism is installed on the lower roller frame and located below the upper dust-guiding structure; The lower dust collection and blowing mechanism includes a lower dust collection structure and a lower blowing structure. The lower dust collection structure is installed on the lower roller frame and located below the middle dust collection mechanism. The lower blowing structure is installed on the lower roller frame and is located at one end close to the lower dust collection structure. The lower roller frame is provided with a plurality of lower support roller groups for supporting the lower straightening roller group. The plurality of lower support roller groups are arranged along the axial direction of the lower straightening roller group. Each lower support roller group includes a plurality of lower support rollers and a plurality of lower bearing seats. The lower bearing seats are mounted on the lower roller frame, and the lower support rollers are mounted on one side of their corresponding lower bearing seats. The upper dust guiding structure includes a plurality of dust guiding collection grooves. The plurality of dust guiding collection grooves are all extended along the airflow blowing direction of the upper blowing structure, and the plurality of dust guiding collection grooves are mounted on the top of the lower bearing seats of the plurality of lower support roller groups. The intermediate dust collection mechanism includes multiple dust collection troughs, which are mounted below the lower support rollers of the multiple lower support roller groups and located between the lower bearing seats of the multiple lower support roller groups; The upper blowing structure includes an upper blowing pipe and multiple upper blowing nozzles. The upper blowing pipe is arranged perpendicular to the dust collection groove, and the multiple upper blowing nozzles are spaced apart on the upper blowing pipe, with the multiple upper blowing nozzles extending to the opening at one end of the multiple dust collection grooves.

2. The dust removal system for the straightening machine as described in claim 1, characterized in that, The dust collection trough extends downward at an angle from its end near the upper blowing structure toward its dust outlet end.

3. The dust removal system for the straightening machine as described in claim 1, characterized in that, The dust collection trough has a first trough side plate and a second trough side plate arranged opposite to each other. The end of the first trough side plate away from the upper blowing structure is bent toward the second trough side plate to form a bent flow guide part, and a dust outlet is formed between the bent flow guide part and the end of the second trough side plate away from the upper blowing structure.

4. The dust removal system for the straightening machine as described in claim 1, characterized in that, The airflow blowing direction of the upper blowing structure is the straightening direction of the straightening machine. The dust collection trough includes multiple dust collection trough sections, which are connected along the straightening direction. At least some of the dust collection trough sections can rise and fall with the lower bearing seat of the lower support roller group connected to them.

5. The dust removal system for the straightening machine as described in claim 1, characterized in that, The intermediate dust collection mechanism also includes a vibration structure, which is installed on the lower roller frame and connected to the multiple dust collection troughs. The vibration structure can drive the multiple dust collection troughs to reciprocate in the vertical plane where their axial direction is located to generate vibration and drive the dust inside to vibrate and displace and be discharged.

6. The dust removal system for the straightening machine as described in claim 5, characterized in that, The vibration structure includes a vibration drive component, multiple supports, multiple connecting rods, multiple connecting beams, and multiple connecting sleeves. The supports are fixed to the lower roller frame and hinged to one end of the connecting rod. The other end of the connecting rod is hinged to the connecting beam. The connecting beam connects multiple dust collection troughs. The connecting sleeve is hinged to the connecting beam and can be connected to the vibration drive component.

7. The dust removal system for the straightening machine as described in claim 1, characterized in that, The upper purging pipe includes multiple independent upper purging pipe sections, which are arranged along the axial direction of the straightening roller group. Each upper purging pipe section has a quick-connect fitting at both ends for connecting to the air supply line.

8. The dust removal system for the straightening machine as described in claim 1, characterized in that, The lower dust receiving structure includes a lower dust receiving plate and a lower dust discharge plate. The lower dust receiving plate is laid below the middle dust receiving mechanism. One end of the lower dust discharge plate is connected to the dust discharge end of the lower dust receiving plate, and the other end of the lower dust discharge plate extends downwards out of the lower roller frame.

9. The dust removal system for the straightening machine as described in claim 1, characterized in that, The end of the intermediate dust collection mechanism away from the upper blowing structure forms its dust outlet end, and the end of the lower dust collection structure away from the lower blowing structure forms its dust outlet end. The dust removal system of the straightening machine also includes a dust conveying device and a dust chute. One end of the dust chute is connected to the dust outlet end of the intermediate dust collection mechanism and the dust outlet end of the lower dust collection structure, and the other end of the dust chute extends downward at an angle above the dust conveying device.

10. A dust removal method for a straightening machine, characterized in that, The dust removal system for the straightening machine according to any one of claims 1-9, the dust removal method for the straightening machine includes the following steps: During the process of the straightening machine straightening the sheet metal, the upper blowing structure, the intermediate dust-receiving mechanism, and the dust conveying mechanism operate continuously. During the process of straightening the sheet metal by the straightening machine, the lower blowing structure is operated intermittently.

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