Device and method for directionally presetting brazing filler metal on wave crest of corrugated plate of metal honeycomb structure

Abstract

The invention discloses a device and a method for directionally presetting brazing filler metal for wave crests of a corrugated plate of a metal honeycomb structure, and belongs to the technical field of a three-way catalyst metal honeycomb structure brazing process. The device comprises a gear mechanism and a rolling brush mechanism, and the corrugated plate to be rolled and brushed with the brazing filler metal is placed between the gear mechanism and the rolling brush mechanism; the corrugated geometric phase of the corrugated plate is meshed with gear teeth of the gear mechanism, the gear mechanism is connected with the driving mechanism, the rolling brush mechanism is connected with the lifting mechanism and the driving mechanism, and the rolling brush mechanism makes contact with the brazing filler metal circulating mechanism. By the adoption of the device and method for directionally presetting the brazing filler metal on the wave crest of the corrugated plate of the metal honeycomb structure, the using amount of the brazing filler metal is remarkably reduced, and the quality requirement of the production technology is met while the using amount of the brazing filler metal is reduced; and retention of the brazing filler metal at the wave troughs on the side faces and the two sides of the corrugated plate is effectively eliminated, better adhesion efficiency is provided for three-way catalyst slurry, the purification capacity of the three-way catalyst is improved, and the product performance is improved.

Description

Technical Field

[0001] The invention relates to the technical field of brazing technology for a three-way catalytic converter metal honeycomb structure, and in particular to a device and method for pre-setting brazing material for directional wave crests of a corrugated plate of a metal honeycomb structure. Background Art

[0002] The three-way catalytic converter is an important component of the exhaust system of internal combustion engines such as automobile engines. The device has a honeycomb structure, and a three-way catalyst containing precious metals such as platinum (Pt), palladium (Pd), and rhodium (Rh) is attached to its surface. It converts harmful gases such as nitrogen oxides (NOx), carbon monoxide (CO), and hydrocarbons (HC) in the exhaust gas of the internal combustion engine into CO through a series of oxidation and reduction chemical reactions. 2 , H 2 O and N 2 It is an important purification device for the exhaust gas of internal combustion engines and is widely used in the exhaust gas purification of motor vehicles. According to the different materials of its honeycomb structure, the three-way catalytic converter can be divided into a ceramic honeycomb carrier catalyst and a metal honeycomb carrier catalyst. The disadvantage of the ceramic honeycomb carrier catalyst is that its wall thickness is large, the density is large, and it rises to the working temperature slowly compared with metal. With the increasingly stringent regulations on motor vehicle exhaust emissions, the performance of honeycomb ceramic carrier catalytic purifiers is difficult to adapt to market demand and cannot meet the standards of emission regulations. The metal honeycomb carrier catalyst has the advantages of high opening rate, low heat capacity, and fast heating, which meets the requirements of low resistance and rapid ignition, and solves the corresponding problems well. Therefore, it has broad application prospects in the field of motor vehicle exhaust purification. Under the huge market demand and increasingly stringent emission regulations, the product quality requirements for metal honeycomb carriers are also showing an increasingly stringent trend. Therefore, the manufacturing technology of three-way catalytic converters with high catalyst loading, high structural performance and low cost has attracted more and more attention from researchers.

[0003] The metal honeycomb structure of the three-way catalytic converter is usually prepared by assembling and welding stainless steel corrugated plates and stainless steel flat plates. The welding method mainly adopts the brazing method, among which the brushing process of the oily solder on the wave peaks on both sides of the corrugated plate largely determines the quality of brazing, and even the residual amount of solder will affect the subsequent adhesion efficiency of the three-way catalyst slurry. Therefore, the pre-brushing technology of the corrugated plate solder is a key link in the overall brazing process of the metal honeycomb carrier of the three-way catalytic converter. At present, the corrugated plate and the flat plate are mainly rolled into pairs, placed in a solder pool for overall pressurized infiltration, and finally dried and fixed to pre-set the oily solder. However, the disadvantage of this method is that the overall pressurized infiltration of the oily solder will adhere to the entire surface of the corrugated plate and the flat plate. Therefore, after brazing, there are still a lot of brazing material residues in the non-connected position, which leads to the increase of the wetting angle of the metal honeycomb carrier surface of the three-way catalytic converter to the three-way catalyst slurry, and the adhesion efficiency of the three-way catalyst slurry on the metal honeycomb surface is reduced, which leads to a decrease in the loading of the catalyst slurry, reduces the catalytic efficiency of harmful exhaust gas, and even affects the product quality; on the other hand, the oily brazing material used for overall brazing is relatively expensive, and the pressurized infiltration process causes the oily brazing material to be ineffectively attached to most of the non-connected areas on the surface of the corrugated plate, resulting in a waste of brazing material and increasing the production and environmental governance costs. In addition to the brazing method, the welding position can also be accurately located to perform combined assembly laser welding of the honeycomb core and honeycomb plate. However, this metal honeycomb laser welding method requires multi-layer and multi-pass welding, and its equipment, processing, and personnel costs are relatively high, and the production speed and efficiency are low. In addition, the light-electricity-heat conversion efficiency of the laser welder is relatively low, so this method has obvious cost and efficiency disadvantages and cannot meet the mass production needs of the three-way catalytic converter. Summary of the invention

[0004] The object of the present invention is to provide a device and method for directional pre-setting solder for the wave crests of a corrugated plate of a metal honeycomb structure, which can significantly reduce the amount of solder used and meet the quality requirements of the production process while reducing the amount of solder used; it can effectively eliminate the retention of solder at the side surfaces and the troughs on both sides of the corrugated plate, provide better adhesion efficiency for the three-way catalyst slurry, solve the problem of decreased loading of the three-way catalyst slurry caused by the preparation process of the metal honeycomb carrier of the three-way catalytic converter by the infiltration-type addition of solder, improve the purification capacity of the three-way catalytic converter, and enhance the product performance of the three-way catalytic converter.

[0005] To achieve the above-mentioned purpose, the present invention provides a corrugated plate wave peak directional pre-setting solder device with a metal honeycomb structure, comprising a gear mechanism, a roller brush mechanism and an infrared heating mechanism, a corrugated plate for roller brushing solder is placed between the gear mechanism and the roller brush mechanism, the corrugated plate's corrugated geometric phase is meshed with the gear teeth of the gear mechanism, the gear mechanism is connected to the driving mechanism, the roller brush mechanism is connected to the lifting mechanism and the driving mechanism, and the roller brush mechanism is in contact with the solder circulation mechanism, and an infrared heating mechanism is provided under the corrugated plate.

[0006] Preferably, the gear mechanism includes main gear No. 1, guide gear No. 1, main gear No. 2 and guide gear No. 2, main gear No. 1 is placed to the upper right of main gear No. 2, the angle between the common tangent formed by the lower edge of main gear No. 1 and the upper edge of main gear No. 2 and the horizontal plane is 10°-30°, the rotation directions of main gear No. 1 and main gear No. 2 are opposite, guide gear No. 1 is provided to the upper right of main gear No. 1, and guide gear No. 2 is provided to the upper left of main gear No. 2.

[0007] Preferably, the roller brush mechanism includes roller brush No. 1, roller brush No. 2, roller brush No. 3 and roller brush No. 4, roller brush No. 1 is placed at the lower right of main gear No. 1, roller brush No. 2 is placed directly below main gear No. 1, roller brush No. 3 is placed at the lower left of main gear No. 2, and roller brush No. 4 is placed directly below main gear No. 2.

[0008] Preferably, the infrared heating mechanism includes infrared radiation heating component No. 1 and infrared radiation heating component No. 2, infrared radiation heating component No. 1 is placed on the left side of roller brush No. 2, and infrared radiation heating component No. 2 is placed on the right side of roller brush No. 4, and the heating planes of infrared radiation heating component No. 1 and infrared radiation heating component No. 2 are both parallel to the transmission plane of the corrugated plate.

[0009] Preferably, a deepened groove is provided at the tooth valley of the No. 2 main gear, and the deepened groove corresponds to the phase of the wave crest of the corrugated plate.

[0010] Preferably, roller brush No. 1, roller brush No. 2, roller brush No. 3 and roller brush No. 4 are made of short-bristled roller brushes, and the bristles are made of synthetic fiber felt material.

[0011] Preferably, the center distance between the No. 1 main gear and the No. 2 main gear is 3-4 times the length of the sum of the diameters of the No. 1 main gear and the No. 2 main gear.

[0012] Preferably, the No. 1 main gear, the No. 1 guide gear, the No. 2 main gear and the No. 2 guide gear are all connected to the driving mechanism, and the tooth tip linear speeds of the gear mechanisms are the same.

[0013] The present invention provides a method for pre-setting soldering material in a directional manner on the wave crests of a corrugated plate of a metal honeycomb structure, which adopts the device for pre-setting soldering material in a directional manner on the wave crests of a corrugated plate of a metal honeycomb structure as described above, comprising the following steps: Step 1: The corrugated plate is fed into the No. 1 main gear by the feeding mechanism, and the gear mechanism provides traction and rotates clockwise to feed the material. The corrugated plate is guided by the No. 1 guide gear, and the meshing effect with the No. 1 main gear is fixed at the same time. When the corrugated plate rotates clockwise to the position of the No. 1 roller brush and the No. 2 roller brush, the No. 1 roller brush and the No. 2 roller brush are driven by the lifting mechanism to push in obliquely below and directly below the No. 1 main gear respectively, clamping and fixing the corrugated plate, and making the wave crest on one side of the corrugated plate contact with the surface of the No. 1 roller brush and the No. 2 roller brush, and the No. 1 roller brush and the No. 2 roller brush dip the solder through the solder circulation mechanism, and roll the solder to the wave crest on the side of the corrugated plate that contacts with the No. 1 roller brush and the No. 2 roller brush; Step 2: After the corrugated plate is coated with solder on one side, it is transferred from the No. 1 main gear to the No. 2 main gear. During the transfer process, the No. 1 infrared radiation heating component dries and fixes the oily solder coated on the crest position of one side of the corrugated plate at a suitable heating power and distance to prevent the solder from flowing to the trough position of the corrugated plate due to gravity when the No. 2 main gear rotates and reverses, and to avoid the loss caused by friction with the flat plate during the rolling and assembly of the honeycomb structure; Step 3, the corrugated plate passes through the No. 2 main gear, and the gear mechanism provides traction, and the material is fed counterclockwise. The corrugated plate is guided by the No. 2 guide gear, and the meshing effect with the No. 2 main gear is fixed at the same time. At this time, the deepened groove structure of the tooth valley of the No. 2 main gear effectively prevents the corrugated plate coated with oily solder from contacting the tooth valley of the No. 2 main gear, causing the solder to be lost or shifted due to contact friction. When the corrugated plate rotates counterclockwise to the position of the No. 3 roller brush and the No. 4 roller brush, the No. 3 roller brush and the No. 4 roller brush are driven by the lifting mechanism to push in obliquely below and directly below the No. 2 main gear respectively, clamping and fixing the corrugated plate, and making the wave crest on the other side of the corrugated plate contact with the surface of the No. 3 roller brush and the No. 4 roller brush. The No. 3 roller brush and the No. 4 roller brush dip the solder through the solder circulation mechanism, and roll the solder to the wave crest on the other side of the corrugated plate in contact with the No. 3 roller brush and the No. 4 roller brush; Step 4: After the corrugated plate is coated with solder on the other side, it leaves the No. 2 main gear and is transported to the traction and receiving mechanism. During the transmission process, the No. 2 infrared radiation heating component dries and fixes the oily solder coated on the crest position of one side of the corrugated plate at a suitable heating power and distance to avoid solder loss caused by friction with the flat plate during the rolling and assembly of the honeycomb structure; Step 5: The corrugated plate that has been coated on both sides and dried with solder is subsequently rolled and assembled, and brazed using a brazing furnace.

[0014] Therefore, the present invention adopts the above-mentioned corrugated plate crest directional pre-setting solder device and method of the metal honeycomb structure, which has the following beneficial effects: (1) Under the premise of ensuring the brazing quality requirements of the metal honeycomb carrier of the three-way catalytic converter, the present invention pre-places the brazing material only at the wave crest position of the corrugated plate. Compared with the traditional method of pressurized infiltration, which results in the pre-placement of brazing material on the corrugated plate and the flat plate as a whole, the utilization rate of the oily brazing material can be greatly improved, the waste can be reduced, and the production cost can be reduced and the environmental protection benefit can be improved; (2) Since the present invention only pre-places the brazing material at the wave crest of the corrugated plate, i.e., the contact position between the corrugated plate and the flat plate, the brazing material residue at the side and wave trough of the corrugated plate can be effectively eliminated after brazing, and the three-way catalyst slurry in the subsequent process will directly adhere to the stainless steel surface, which has a better adhesion rate than adhering to the residual brazing material surface, thereby increasing the loading amount of the catalyst slurry on the metal honeycomb carrier of the three-way catalyst, and also improving the catalytic effect of the three-way catalyst on the exhaust gas of the internal combustion engine, as well as the product and environmental performance of the three-way catalyst; (3) The present invention designs an additional deepening groove for the tooth valley of the No. 2 main gear. When the corrugated plate with solder applied to the wave crest on one side passes through the No. 2 main gear, the solder at the wave crest position and the deepening groove of the tooth valley of the No. 2 main gear do not come into contact. Therefore, the problem of loss, displacement or adhesion of the pre-set solder to the gear teeth due to the friction between the tooth valley and the wave crest can be avoided. This design ensures the quality stability of the directional pre-set solder, which is conducive to improving the product quality of the subsequent brazing metal honeycomb structure; (4) The present invention arranges two groups of roller brushes around the No. 1 main gear and the No. 2 main gear respectively. The wave crests on each side of the corrugated plate are brushed with oily solder twice to ensure that all wave crests of the corrugated plate are fully pre-set with oily solder, thereby avoiding the situation where the corresponding positions of the wave crests are not dipped into sufficient amount of solder due to occasional minor unevenness of the felt surface when a single roller brush is operated for a long time. On the other hand, after the oily solder is applied on one side of the corrugated plate, the solder is immediately dried by a heating mechanism with adjustable power and heating distance to ensure that the oily solder will not flow into the wave valley on this side when the corrugated plate is inverted in the subsequent process. These two aspects of the design ensure the stability of the quality and position of the directionally pre-set solder, which is beneficial to improving the product quality of the subsequent brazing of the metal honeycomb structure.

[0015] (5) This method uses an automatically controlled and driven mechanical structure to complete the process of directional brushing and presetting the solder. It has a simple structure, a high degree of automation and no need for manual operation. The traditional pressurized solder infiltration process usually requires manual operations such as feeding, infiltration and material removal. Therefore, this method improves working conditions, solves the risk of heavy metal poisoning caused by contact with solder, and is also conducive to reducing labor and equipment costs.

[0016] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the device structure of the present invention; Figure 2 It is a schematic diagram of the mechanical structure of the No. 1 main gear and its surrounding structures of the present invention; Figure 3 It is a schematic diagram of the mechanical structure of the No. 1 main gear and the No. 1 roller brush and the No. 2 roller brush applying solder to one side of the corrugated plate of the present invention; Figure 4 It is a schematic diagram of the mechanical structure of the present invention in which the No. 2 main gear and the No. 2 guide gear guide and mesh with the corrugated plate; Figure 5 It is a schematic diagram of the deepened groove structure at the tooth valley of the No. 2 main gear of the present invention and its position with the wave crest of the corrugated plate.

[0018] Reference numerals 1. Corrugated plate; 2. Main gear No. 1; 3. Guide gear No. 1; 4. Roller brush No. 1; 5. Roller brush No. 2; 6. Main gear No. 2; 7. Guide gear No. 2; 8. Roller brush No. 3; 9. Roller brush No. 4; 10. Infrared radiation heating component No. 1; 11. Infrared radiation heating component No. 2; 12. Deepened groove; 13. Wave crest. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Embodiment 1 like Figure 1As shown, the present invention provides a device for pre-setting solder for the wave crest of a corrugated plate with a metal honeycomb structure, comprising a gear mechanism and a roller brush mechanism, wherein the gear mechanism is in contact with the roller brush mechanism, and a corrugated plate 1 to be roller brushed with solder is placed between the gear mechanism and the roller brush mechanism, the gear mechanism is used to mesh and convey the corrugated plate 1 in the corrugated phase, and the roller brush mechanism is used to brush the solder on the wave crests 13 on both sides of the corrugated plate 1. The corrugated geometric phase of the corrugated plate 1 meshes with the gear teeth of the gear mechanism, the gear mechanism is connected to the driving mechanism, the roller brush mechanism is connected to the lifting mechanism and the driving mechanism, and the driving mechanism is used to provide power to the gear mechanism, the roller brush mechanism and the lifting mechanism. The roller brush mechanism is in contact with the solder circulation mechanism, and the solder circulation mechanism is used to replenish the solder.

[0022] The felt structure on the surface of the roller brush of the roller brush mechanism has a certain elasticity, so when the corrugated plate 1 is conveyed, the corrugated plate 1 will squeeze the felt structure, and the corrugated plate 1 passes through the gap through the deformation of the felt structure, while ensuring sufficient coating of the solder, so there is no gap between the gear mechanism and the roller brush mechanism.

[0023] An infrared heating mechanism is provided under the corrugated plate 1. The infrared heating mechanism is used to quickly dry and fix the solder just applied on both sides of the corrugated plate 1 to prevent the oily solder from being thrown out under the action of gravity and centrifugal force, affecting the qualified rate of the product. The heating mechanism can adjust the irradiation heating distance and heating power according to the viscosity, wetting angle and other properties of the solder, and can ensure that the solder applied on the crest 13 of the corrugated plate 1 can be dried and fixed, preventing the solder, especially the oily solder, from dripping from the surface of the crest 13 due to the action of gravity and gear friction and adhering to the tooth valley of the gear mechanism, causing the loss of solder, and then causing defects in the subsequent brazing process.

[0024] The above-mentioned driving mechanism, lifting mechanism and solder circulation mechanism are all used in conjunction with existing devices, gear mechanisms, roller brush mechanisms and heating mechanisms.

[0025] like Figure 2 As shown, the gear mechanism includes a No. 1 main gear 2, a No. 1 guide gear 3, a No. 2 main gear 6 and a No. 2 guide gear 7. The No. 1 main gear 2, the No. 1 guide gear 3, the No. 2 main gear 6 and the No. 2 guide gear 7 are all connected to the driving mechanism, and the tooth tip linear speed of the gear mechanism is the same. The center distance between the No. 1 main gear 2 and the No. 2 main gear 6 is 3-4 times the length of the sum of the diameters of the No. 1 main gear 2 and the No. 2 main gear 6. The No. 1 main gear 2, the No. 1 guide gear 3, the No. 2 main gear 6 and the No. 2 guide gear 7 are meshed with the corrugated plate 1 to transport the corrugated plate 1.

[0026] The No. 1 main gear 2 is placed on the upper right of the No. 2 main gear 6. The angle between the common tangent formed by the lower edge of the No. 1 main gear 2 and the upper edge of the No. 2 main gear 6 and the horizontal plane is 10°-30°, which can effectively prevent the oily solder that has just been painted and has not been dried by the infrared heating mechanism from flowing into the side of the crest 13 of the corrugated plate 1, and can also reduce the dripping of the oily solder under the action of gravity and friction, resulting in a decrease in the utilization rate of the solder. The No. 1 main gear 2 rotates in the opposite direction to the No. 2 main gear 6. The No. 1 guide gear 3 is provided on the upper right of the No. 1 main gear 2, and the No. 2 guide gear 7 is provided on the upper left of the No. 2 main gear 6.

[0027] like Figure 5 As shown, a deepened groove 12 is provided at the tooth valley of the No. 2 main gear 6, and the deepened groove 12 corresponds to the phase of the wave crest 13 of the corrugated plate 1. The internal space of the deepened groove 12 will prevent the gear tooth valley from contacting the wave crest 13 on the side of the corrugated plate 1 that has been coated with solder, and prevent the wave crest 13 on one side of the corrugated plate 1 that has been coated with oily solder from contacting with the groove bottom of the No. 2 main gear 6 when the No. 2 main gear 6 is meshed with the corrugated plate 1, thereby causing friction and wearing of the solder, and the solder will be retained in the tooth valley, and gradually transferred to the tooth tip due to the centrifugal force during the rotation of the No. 2 main gear 6. By setting the deepened groove 12, the wear of the coated solder can be reduced, and the solder transferred to the tooth tip of the No. 2 main gear 6 due to wear can be prevented from adhering to the trough side of the corrugated plate 1, resulting in waste of solder, reduced brazing quality, and reduced loading of the metal honeycomb carrier on the three-way catalyst.

[0028] like Figure 3 , Figure 4 As shown, the roller brush mechanism includes roller brush No. 1 4, roller brush No. 2 5, roller brush No. 3 8 and roller brush No. 4 9. Roller brush No. 1 4 is placed at the lower right of main gear No. 1 2, roller brush No. 2 5 is placed directly below main gear No. 1 2, roller brush No. 3 8 is placed at the lower left of main gear No. 2 6, and roller brush No. 4 9 is placed directly below main gear No. 2 6. Roller brush No. 1 4, roller brush No. 2 5, roller brush No. 3 8 and roller brush No. 4 9 are made of short-haired roller brushes, and the brush hairs are made of synthetic fiber felt and other hydrophilic, wear-resistant, oil-resistant, fatigue-resistant, and long-term usable materials. The brush hairs are fine and dense, so that the solder can be brushed more evenly and densely on the wave crests 13 on both sides of the corrugated plate 1, and can prevent roller brush No. 1 4, roller brush No. 2 5, roller brush No. 3 8 and roller brush No. 4 9 from brushing too large an area during operation.

[0029] The infrared heating mechanism includes an infrared radiation heating component No. 1 10 and an infrared radiation heating component No. 2 11. The infrared radiation heating component No. 1 10 is placed on the left side of the roller brush No. 2 5, and the infrared radiation heating component No. 2 11 is placed on the right side of the roller brush No. 4 9. The heating planes of the infrared radiation heating component No. 1 10 and the infrared radiation heating component No. 2 11 are parallel to the transmission plane of the corrugated plate 1, and the distance between the infrared heating component and the corrugated plate can be adjusted by the driving mechanism.

[0030] The present invention provides a method for pre-setting solder material in a directional manner on the wave crests of a corrugated plate of a metal honeycomb structure, which adopts the above-mentioned device for pre-setting solder material in a directional manner on the wave crests of a corrugated plate of a metal honeycomb structure, comprising the following steps: Step 1, the corrugated plate 1 is fed into the No. 1 main gear 2 by the feeding mechanism, and the gear mechanism provides traction and rotates clockwise to feed. The corrugated plate 1 is guided by the No. 1 guide gear 3, and the meshing effect with the No. 1 main gear 2 is fixed at the same time. When the corrugated plate 1 rotates clockwise to the position of the No. 1 roller brush 4 and the No. 2 roller brush 5, the No. 1 roller brush 4 and the No. 2 roller brush 5 are driven by the lifting mechanism to push in obliquely below and directly below the No. 1 main gear 2 respectively, clamping and fixing the corrugated plate 1, and making the wave crest 13 on one side of the corrugated plate 1 contact with the surface of the No. 1 roller brush 4 and the No. 2 roller brush 5, the No. 1 roller brush 4 and the No. 2 roller brush 5 dip the solder through the solder circulation mechanism, and roll the solder to the wave crest 13 on the side of the corrugated plate 1 that contacts with the No. 1 roller brush 4 and the No. 2 roller brush 5; Step 2: After the corrugated plate 1 is coated with solder on one side, it is transferred from the No. 1 main gear 2 to the No. 2 main gear 6. During the transfer process, the No. 1 infrared radiation heating component 10 dries and fixes the oily solder coated on the wave crest 13 of one side of the corrugated plate 1 at a suitable heating power and distance, so as to prevent the solder from flowing to the wave trough of the corrugated plate 1 due to gravity when the No. 2 main gear 6 rotates and reverses, and to prevent the loss of solder caused by friction with the flat plate during the rolling and assembly of the honeycomb structure; Step 3: The corrugated plate 1 passes through the No. 2 main gear 6, and the gear mechanism provides traction and rotates counterclockwise to feed. The corrugated plate 1 is guided by the No. 2 guide gear 7, and the meshing effect with the No. 2 main gear 6 is fixed. At this time, the deepened groove 12 structure of the tooth valley of the No. 2 main gear 6 effectively prevents the corrugated plate 1 coated with oily solder from contacting with the tooth valley of the No. 2 main gear 6, which causes the solder to be lost or shifted due to contact friction. When the corrugated plate 1 rotates counterclockwise to the No. 3 roller brush When the roller brushes No. 8 and No. 4 are in the positions, the roller brushes No. 3 and No. 4 are driven by the lifting mechanism to push in obliquely below and directly below the main gear No. 2, respectively, to clamp and fix the corrugated plate 1, and to make the wave crest 13 on the other side of the corrugated plate 1 contact with the surfaces of the roller brushes No. 3 and No. 4, and the roller brushes No. 3 and No. 4 are dipped in solder through the solder circulation mechanism, and the solder is rolled to the wave crest 13 on the other side of the corrugated plate 1 that contacts with the roller brushes No. 3 and No. 4; Step 4: After the brazing material is applied on the other side of the corrugated plate 1, it leaves the No. 2 main gear 6 and is transported to the traction and receiving mechanism. During the transport process, the No. 2 infrared radiation heating component 11 dries and fixes the oily brazing material applied on the crest 13 on the other side of the corrugated plate 1 at a suitable heating power and distance, so as to avoid brazing material loss caused by friction with the flat plate during rolling and assembly of the honeycomb structure; Step 5: The corrugated plate 1 after the double-side coating and drying of the solder is subsequently rolled and assembled, and brazed in a brazing furnace.

[0031] Therefore, the present invention adopts the above-mentioned metal honeycomb structure corrugated plate peak directional pre-setting solder device and method, which can significantly reduce the amount of solder used and meet the quality requirements of the brazing production process; it can effectively eliminate the retention of solder at the side and both sides of the corrugated plate The trough provides better adhesion efficiency for the three-way catalyst slurry, solves the problem of decreased loading of the three-way catalyst slurry caused by the pressurized infiltration and solder addition preparation process of the metal honeycomb carrier of the three-way catalytic converter, improves the purification capacity of the three-way catalytic converter, and enhances the product performance of the three-way catalytic converter.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A device for pre-setting solder in a directional manner on the crest of a corrugated plate of a metal honeycomb structure, characterized in that: It includes a gear mechanism, a roller brush mechanism and an infrared heating mechanism. The gear mechanism is in contact with the roller brush mechanism, and a corrugated plate for roller brush solder is placed between the gear mechanism and the roller brush mechanism. The corrugated geometric phase of the corrugated plate is meshed with the gear teeth of the gear mechanism. The gear mechanism is connected to the driving mechanism, the roller brush mechanism is connected to the lifting mechanism and the driving mechanism, and the roller brush mechanism is in contact with the solder circulation mechanism. An infrared heating mechanism is provided under the corrugated plate.

2. A device for pre-setting solder for directional wave crests of a corrugated plate of a metal honeycomb structure according to claim 1, characterized in that: The gear mechanism comprises a No. 1 main gear, a No. 1 guide gear, a No. 2 main gear and a No. 2 guide gear. The No. 1 main gear is placed to the upper right of the No. 2 main gear. The angle between the common tangent formed by the lower edge of the No. 1 main gear and the upper edge of the No. 2 main gear and the horizontal plane is 10°-30°. The rotation directions of the No. 1 main gear and the No. 2 main gear are opposite. The No. 1 guide gear is arranged to the upper right of the No. 1 main gear, and the No. 2 guide gear is arranged to the upper left of the No. 2 main gear.

3. A device for pre-setting solder in a directional manner on the corrugated plate crest of a metal honeycomb structure according to claim 2, characterized in that: The roller brush mechanism includes roller brush No. 1, roller brush No. 2, roller brush No. 3 and roller brush No.

4. Roller brush No. 1 is placed at the lower right of main gear No. 1, roller brush No. 2 is placed directly below main gear No. 1, roller brush No. 3 is placed at the lower left of main gear No. 2, and roller brush No. 4 is placed directly below main gear No.

2.

4. A device for pre-setting solder for directional wave crests of a corrugated plate of a metal honeycomb structure according to claim 3, characterized in that: The infrared heating mechanism includes infrared radiation heating component No. 1 and infrared radiation heating component No.

2. Infrared radiation heating component No. 1 is placed on the left side of roller brush No. 2, and infrared radiation heating component No. 2 is placed on the right side of roller brush No.

4. The heating planes of infrared radiation heating component No. 1 and infrared radiation heating component No. 2 are parallel to the transmission plane of the corrugated plate.

5. The device for pre-setting solder for directional wave crests of a corrugated plate of a metal honeycomb structure according to claim 2, characterized in that: A deepened groove is provided at the tooth valley of the No. 2 main gear, and the deepened groove corresponds to the phase of the wave crest of the corrugated plate.

6. A device for pre-setting solder for directional wave crests of a corrugated plate of a metal honeycomb structure according to claim 3, characterized in that: The No. 1 roller brush, No. 2 roller brush, No. 3 roller brush and No. 4 roller brush are made of short-hair roller brushes, and the bristles are made of synthetic fiber felt material.

7. A device for pre-setting solder in a directional manner on the wave crests of a corrugated plate of a metal honeycomb structure according to claim 2, characterized in that: The center distance between the No. 1 main gear and the No. 2 main gear is 3-4 times the length of the sum of the diameters of the No. 1 main gear and the No. 2 main gear.

8. The device for pre-setting solder in a directional manner on the corrugated plate crest of a metal honeycomb structure according to claim 2, characterized in that: The No. 1 main gear, the No. 1 guide gear, the No. 2 main gear and the No. 2 guide gear are all connected to the driving mechanism, and the tooth tip linear speeds of the gear mechanisms are the same.

9. A method for pre-setting soldering material on the wave crests of a corrugated plate of a metal honeycomb structure, using a device for pre-setting soldering material on the wave crests of a corrugated plate of a metal honeycomb structure according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: The corrugated plate is fed into the No. 1 main gear by the feeding mechanism, and the gear mechanism provides traction and rotates clockwise to feed the material. The corrugated plate is guided by the No. 1 guide gear, and the meshing effect with the No. 1 main gear is fixed at the same time. When the corrugated plate rotates clockwise to the position of the No. 1 roller brush and the No. 2 roller brush, the No. 1 roller brush and the No. 2 roller brush are driven by the lifting mechanism to push in obliquely below and directly below the No. 1 main gear respectively, clamping and fixing the corrugated plate, and making the wave crest on one side of the corrugated plate contact with the surface of the No. 1 roller brush and the No. 2 roller brush, and the No. 1 roller brush and the No. 2 roller brush dip the solder through the solder circulation mechanism, and roll the solder to the wave crest on the side of the corrugated plate that contacts with the No. 1 roller brush and the No. 2 roller brush; Step 2: After the corrugated plate is coated with solder on one side, it is transferred from the No. 1 main gear to the No. 2 main gear. During the transfer process, the No. 1 infrared radiation heating component dries and fixes the oily solder coated on the crest position of one side of the corrugated plate at a suitable heating power and distance; Step 3, the corrugated plate passes through the No. 2 main gear, and the gear mechanism provides traction, and rotates counterclockwise to feed. The corrugated plate is guided by the No. 2 guide gear, and the meshing effect with the No. 2 main gear is fixed. When the corrugated plate rotates counterclockwise to the position of the No. 3 roller brush and the No. 4 roller brush, the No. 3 roller brush and the No. 4 roller brush are driven by the lifting mechanism to push in obliquely below and directly below the No. 2 main gear respectively, clamping and fixing the corrugated plate, and making the peaks on the other side of the corrugated plate contact with the surfaces of the No. 3 roller brush and the No. 4 roller brush, and the No. 3 roller brush and the No. 4 roller brush dip the solder through the solder circulation mechanism, and roll the solder to the other side of the corrugated plate and the No. 3 roller brush and the No. 4 roller brush. Step 4: After the corrugated plate is coated with solder on the other side, it leaves the No. 2 main gear and is transported to the traction and receiving mechanism. During the transportation process, the No. 2 infrared radiation heating component dries and fixes the oily solder coated on the crest position of one side of the corrugated plate at a suitable heating power and distance; Step 5: The corrugated plate that has been coated on both sides and dried with solder is subsequently rolled and assembled, and brazed using a brazing furnace.

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