CN111421074A - Automatic roll forming equipment for flat-top rectangular wave heat exchange fins - Google Patents

Abstract

The invention provides automatic roll forming equipment for flat-topped rectangular wave heat exchange fins, which comprises: a strip tension guide unit 200, a first roller die unit 201, a second roller die unit 202, a third roller die unit 203, a fin shaping unit 204, a fin counting and cutting unit 205, and a fin outlet turning guide unit 206; the automatic rolling forming equipment for the flat-topped rectangular wave heat exchange fins adopts at least two forming steps. In the invention, the change of the size and the length of the product is adjusted only by modifying parameters by a program, the change of the width of the fin is increased or reduced, the number N of the paired rolling dies is increased or reduced, the pitch of the fin and the wave height change are only changed into the paired rolling dies, and all transmission and control driving systems are unchanged. The mechanical adjustment and the program adjustment of the whole transmission control system of the equipment system can adapt to the continuous production of the radiating fins with various sizes and models, the production efficiency is greatly improved, the model changing efficiency is also greatly improved, and the die sinking cost of various sizes is saved.

Description

Automatic roll forming equipment for flat-top rectangular wave heat exchange fins

Technical Field

The invention relates to the technical field of automatic roll forming, in particular to automatic roll forming equipment for a flat-topped rectangular wave heat exchange fin.

Background

The automobile water-air intercooler, the contact area of the oil cooler water or oil liquid medium heat exchange fin is large and the liquid medium flow needs, and is designed into 2 adjacent flat-top rectangular wave radiating fins with 1/4 pitches staggered with each other. The radiating fin has thin substrate and small wave height, forms a positive and negative transverse groove, is favorable for the turbulent flow of liquid, and simultaneously forms a large heat exchange area. The efficiency of heat transfer in a liquid medium of water or oil is very high with a flat top approximating the top of a rectangular wave to maximize the brazing contact area. The traditional radiating fin needs multiple stamping forming, and the process is complicated. The production efficiency is very low. One size requires a whole set of die, and because the heat dissipation fins have various size requirements, most of the heat dissipation fins have different length and width requirements, the manufacturing cost of the stamping die is very high, the processing time is very long, and the service life of the stamping die parts is short, and the maintenance cost is also very high. The edge of the fin produced by stamping is not stamped in place, so that the requirement of the integral flatness of the fin cannot be met, and the heat dissipation performance is influenced. The purpose of developing the efficient rolling forming rectangular radiating fin device is as follows: 1. continuously and efficiently outputting the radiating fins; 2. the automatic continuous operation to the next station can be realized; 3. modifying parameters of a fin size length change program; 4. the width of the fin is changed, and the number of rolling dies is increased or decreased; 5. the pitch of the fins and the wave height are changed, and the rolling die is replaced quickly. The whole transmission control system of the equipment system can adapt to the production of radiating fins with various sizes and models. Therefore, efficient rolling forming flat-top rectangular heat exchange fin equipment needs to be researched and developed to meet the requirements of high-speed, high-quality and multi-size automatic heat exchangers.

Patent document CN108284328A discloses a full-automatic aluminum strip forming device, which at least comprises an uncoiling unit, a forming unit, a welding unit and a cutting unit which are arranged in sequence along the aluminum strip conveying direction; the uncoiling unit is used for storing and uncoiling an aluminum strip to be processed; the forming unit is used for extruding and forming the aluminum strip into an annular structure at least once, and two ends of the aluminum strip in the width direction are butted to form a seam; the welding unit is used for welding the joint to form the required aluminum material; and the cutting unit is used for cutting the welded aluminum material according to the required length. The patent is apparently not well applicable to automatic roll forming of flat-topped rectangular wave heat exchange fins.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide automatic roll forming equipment for flat-top rectangular wave heat exchange fins.

The invention provides automatic roll forming equipment for a flat-topped rectangular wave heat exchange fin, which comprises: a strip tension guide unit 200, a first roller die unit 201, a second roller die unit 202, a third roller die unit 203, a fin shaping unit 204, a fin counting and cutting unit 205, and a fin outlet turning guide unit 206; the strip tension guide unit 200 is arranged on the left side of the first roller die unit 201; the second roller die unit 202 is arranged at the right side of the first roller die unit 201; the first roller die unit 201 and the second roller die unit 202 are arranged on the left side of the third roller die unit 203; the fin shaping unit 204 is arranged on the right side of the third roller die unit 203; the fin count cutoff unit 205 is provided on the right side of the fin shaping unit 204; the fin outlet turnover guide unit 206 is arranged on the right side of the fin counting and cutting unit 205; the automatic rolling forming equipment for the flat-topped rectangular wave heat exchange fins adopts at least two forming steps.

Preferably, the tape tension guide unit 200 includes: a belt tension guide wheel component 2001, a tension pinch roller component 2002, a tension driving wheel 2003, a belt tension pressure sensor swinging wheel component 2004, a tension component mounting side plate 2005, a tension component mounting base 2006, a tension pressing cylinder 2007 and a tension servo motor 2008; the belt tension guide wheel assembly 2001 is disposed at one end of the belt tension guide unit 200; the tension member installation side plate 2005 is provided at the other end of the strip tension guide unit 200; the swinging wheel component 2004 of the belt material tension pressure sensor is connected with the tension component mounting side plate 2005; the tension pinch roller assembly 2002 is arranged on one side close to the strip tension guide wheel component 2001; the tension pinch roller assembly 2002 is disposed on the right side of the tension drive roller 2003.

Preferably, the tooth form of the first roller die unit 201 is similar to an involute, the first roller die unit 201 comprises a first roller die upper portion 20110 and a first roller die lower portion 20111, the first roller die lower portion 20111 is arranged below the first roller die upper portion 20110, the tooth form of the second roller die unit 202 is similar to the involute, the second roller die unit 202 comprises a second roller die upper portion 20210 and a second roller die lower portion 20211, the second roller die lower portion 20211 is arranged below the second roller die upper portion 20210, the tooth form of the third roller die unit 203 is similar to the involute, the third roller die unit 203 comprises a third roller die upper portion 20310 and a third roller die lower portion 20311, the third roller die lower portion 20311 is arranged below the third roller die upper portion 20310, the two roller dies are meshed with each other in pairs, the tooth form gap is just equal to the thickness of the aluminum strip, the meshing process is a bending process of the rectangular aluminum strip, and the adjacent 2 pieces of the dies are staggered in phase P/4, and have a cutting process pitch which is changed with a rolling gap of the rolling angle of the aluminum strip at a bottom rolling position of a heat dissipation fin roll, a heat dissipation bottom die, a heat dissipation fin roll angle is changed from a bottom die height of a bottom die tail portion 363, a bottom die tail fin roll position of a heat dissipation fin roll, a bottom die tail fin roll position of a fin roll position 1, a heat dissipation fin roll position of the aluminum strip is changed from a bottom die height of a bottom die tail fin 363, a bottom die.

The roller die device is formed in a stepwise mode, P1> P2> P3, the pitch size is changed from stepwise to stepwise and smaller, P3(P3 is the size required by the drawing of the final product) is related to the outer diameter of the roller die, the larger the pitch is, the larger the diameter is, the diameter of the roller die is calculated and determined according to the drawing requirements of a processed radiating fin, H1< H2< H3, H3 is the height of the engaged fin of the roller die, H3 is increased in three steps, the size α < α < α (α is the size required by the drawing of the final product) is increased gradually in three steps like α, the angle 68627 is the shape of the rolled fin of the adjacent two pieces of the roller die, the last drawing is required to reach the range of 80-88 degrees, α degrees and tend to 90 degrees, the fin degrees, α is not right angles, the reason that the rotating teeth are required to be withdrawn, b1, b2 is the shape of the rolled fin, the adjacent two pieces of the roller die, the shape is completely the same, the P2/4 pitch is staggered, and the top of the roller die is not connected with the top of the roller die, and the adjacent two pieces of the roller die, and the roller die are not required to be cut.

The width of each upper and lower roller die is that the upper and lower roller dies which generally consider that the strength is not less than 0.5 and moves relatively in a meshing way are a group of N groups of fins forming the width W, and the same width W is the result of comprehensive balance, namely the small heat dissipation area is large, and the mechanical strength is small. The thickness of the roll die also has strength requirements and process processability requirements. The widths of the N flat-top rectangular waves can be equal or different, but the widths of the flat-top rectangular waves in the same length direction are the same.

Preferably, the first roll mold unit 201 includes: the device comprises a first roller die base 2011, a first roller die A main shaft lower cushion block 2012, a first roller die adjustable gap gear assembly A2013, a first roller die A main shaft 2014, a first roller die driven B main shaft upper cushion block 2015, a first roller die driven B main shaft 2016, a first roller die phase gear assembly B2017, a first roller die bearing seat assembly 2018, a first roller die center distance locking screw 2019 and a first roller die chain wheel assembly 20112; the first roller die phase gear set A part 2013 is sleeved on the first roller die driving A main shaft 2014 in an empty mode,

the first roller die adjustable gap gear assembly A2013 is connected with a first roller die A spindle 2014 key through a first roller die phase gear A locking flange; the first roller die phase gear assembly B2017 is sleeved on the first roller die driven B main shaft 2016 in an empty mode; the first roller mold phase gear assembly B2017 includes: a first roller die phase gear locking flange; the first roller die phase gear locking flange is connected with a first roller die driven B main shaft 2016 after being locked; the roller dies and the main shaft are in key connection transmission, and the locking and unlocking of the locking flanges of the main shaft 2014 of the first roller die A and the main shaft B are used for adjusting the meshing phase of the first roller die unit 2011 of the first roller die unit 2010;

the first roller die phase gear assembly A2013 is meshed with the first roller die adjustable gap gear B assembly 2017; the first roller die adjustable gap gear assembly a2013 includes: the first roller die adjustable gap gear and the first roller die adjustable gap gear are connected with the flange; the number of the first roller die adjustable gap gears is two, and the two first roller die adjustable gap gears can be staggered mutually; the first roller die adjustable gap gear is connected with the first roller die adjustable gap gear connecting flange; the two gears of the gap-adjustable gear assembly A passing through the first roller die can rotate relatively and can be locked relatively. So as to eliminate the gap between the transmission gear and the rear transmission gear after the center distance is pulled apart.

The first roller die phase gear assembly B2017 comprises a first roller die phase width gear and a first roller die phase width gear connecting flange, wherein the first roller die phase width gear is sleeved on the first roller die phase width gear connecting flange in an empty manner, rotates by a long circular groove, is adjusted by a screw to be in relative position and is fixed together, the first roller die phase width gear connecting flange is connected with a first roller die driven B main shaft 2016 key, so that the driven main shaft B and the roller dies are in key connection, the first roller die A can be adjusted, the roller die B meshing state is realized, when an aluminum strip enters the first roller die, a roller die oil spraying lubricating protective roller die is adopted, the first roller die A main shaft 2014 drives the first roller die lower part 20111 and the first roller die adjustable gap gear assembly A2013 to rotate, the first roller die adjustable gap gear connecting flange is connected with a first roller die driven B main shaft 2016, when the tooth number of the aluminum strip enters the first roller die, the first roller die is adjusted, the first roller die adjustable roller die phase width gear B2017 and the first roller die adjustable roller die gap A main shaft A2013 are in a roll gap between a first roller die locking roller die A main shaft 2016, the first roller die A main shaft 2016 is adjusted, the roller die A main shaft 99, the roller die adjustable roller die A main shaft 99, the roller die A main shaft A roller die is adjusted, the roller die A main shaft A roller die A main shaft 99, the roller die adjustable roller die A roller die gap subassembly A roller die gap adjustable, the roller die A roller die is adjusted, the roller die gap subassembly is stabilized, the roller die gap adjustable roller die, the roller die rolled by the roller die, the roller die adjustable roller die, the roller die A roller die, the roller die adjustable roller die gap subassembly A roller bearing assembly A roller bearing seat 2016 is stabilized, the roller bearing seat, the roller die gap adjustable roller bearing seat, the roller bearing seat with the roller die rolled by the roller seat, the roller bearing seat, the roller die gap adjustable roller die rolled by the roller bearing seat, the roller die gap adjustable roller die rolled by the roller bearing seat, the roller die gap adjustable roller seat, the roller die gap adjustable roller seat A roller seat 2016 is stabilized, the roller;

the spacer 2015 on the main shaft of the first roller die B determines the center distance of the 2 roller dies and the tooth meshing distance of the roller dies, and the gap is the thickness T of the aluminum strip, namely the thickness T of the fins. The first roller die a under spindle pad 2012 determines a uniform height reference for the fins during rolling. The first roller die sprocket assembly 20112 is disposed at one end of the right side of the first roller die unit 201. The first roller die upper part 20110 can be locked by the first roller die center distance locking screw 2019 at the left and right 2 ends; the first roller die sprocket assembly 20112 can drive the first roller die a main shaft 2014 and the first roller die driven B main shaft 2016 via the meshing gear pair 2013,2017.

Preferably, the method further comprises the following steps: a first roller die fin stripping assembly 20113; the first roller die fin stripping assembly 20113 comprises: the device comprises a first roller die fin stripping lower support, a first roller die fin stripping height adjusting rod and a first roller die fin stripping sheet; the first roller die fin stripping sheet is arranged between a first roller die lower part 20111 and a first roller die upper part 20110. The first roller die fin stripping assembly 20113 plays a role in guiding fins and stripping a roller die

Preferably, the second roller die unit 202 comprises a second roller die holder assembly 2021, a second roller die spindle A lower pad 2022, a second roller die clearance gear assembly A2023, a second roller die spindle A assembly 2024, a second roller die spindle B lower pad 2025, a second roller die driven spindle B2026, a second roller die phase gear assembly B2027, a second roller die bearing assembly 2028, a second roller die center distance adjusting screw 2029, a second roller die driving sprocket assembly 20212, a second roller die fin stripping assembly 20213, a second roller die width adjusting retainer ring 20214, a second upper roller die and a second lower roller die having different numbers of teeth from those of a first roller inner shaft die, a sprocket assembly having different numbers of teeth, a rolling fin rolling pitch P2, a base angle α 2, a rectangular wave height H2, a second step by step, a further reduction of a rolling pitch P, an increase of an angle α, a phase deepening H, the second roller die spindle A assembly 2024 adopts an inner shaft, the second roller die spindle A assembly 2024 comprises an inner shaft, a second roller die spindle A shaft, a rectangular wave height H, a second roller die driving gear assembly, a gear, a roller die driving gear assembly, a driving gear, a driving.

The second roller die main shaft A2024 and the second roller die B phase gear assembly 2023 adopt any one of the following states: relative rotation is carried out; and (4) locking state. The driven main shaft B2026 of the second roller die and the phase gear assembly 2027 of the second roller die adopt any one of the following states: relative rotation is carried out; and (4) locking state. Thereby adjusting the meshing phase of the second AB roller die. After the center distance of the second upper AB roller die and the second lower AB roller die is adjusted, the gap between the transmission gears is removed, and the 2 shafts are ensured to run stably at a high speed without gaps after being locked, and uniform fins are formed by rolling.

The second roller die rotates relatively through an inner shaft structure and an outer shaft structure of a second roller die main shaft A component 2024; the locking state adjusts the phase position between the first roller die and the second roller die.

And a second roller die main shaft B lower cushion block 2025 determines a uniform height standard of the fins in the rolling process, the cushion block B2025 determines the center distance of 2 upper and lower roller dies and determines the meshing distance of teeth of the roller dies, and the gap is the thickness T of the fins. The center distance locking screw 2029 of the second roller die is used for locking a second upper roller die set B20210, an upper cushion block 2025 of a main shaft B of the second roller die, a lower part A20111 of the second roller die and a lower cushion block 2022 of the main shaft A of the second roller die determine the uniform plane height of the radiating fins. The handle mode is used for locking, so that 2 main shaft cushion blocks can be replaced conveniently when the thickness of the fin is replaced.

Preferably, the third roll mold unit 203 includes: a third fin roller die base assembly 2031, a third roller die spindle a lower pad 2032, a third roller die gap gear assembly a2033, a third roller die spindle a assembly 2034, a third roller die driven spindle B lower pad 2035, a third roller die driven spindle B2036, and a third roller die phase gear assembly 2037; a third roller die high-precision bearing 2038, a third roller die center distance adjusting screw 2039, a third roller die driving chain B20312, a third roller die fin stripping assembly 20313 and a third roller die width adjusting retainer ring 20314; the third roller die spindle a assembly 2034 comprises: a third roller mold phase gear assembly a 20343; the third roller mold phase gear assembly A20343 can adjust the phase of the third roller mold lower part 20311 and the third roller mold upper part 20310; the third roller die phase gear assembly a further comprises a special harmonic reducer consisting of 4 parts (a driving gear, a rotary pressing piece, a deformable outer gear ring and a driven gear). The reduction ratio of the harmonic reducer can reach 1: and more than 100, when the pressing piece is rotated to enable the outer gear ring to deform for a circle, the driven gear rotates for 0.01 circle, the driven gear is connected with the 2 adjustable gap gear connecting flanges of the first loose roller die to drive the third roller die main shaft A and the roller die driven main shaft B to synchronously rotate relatively and slightly, and the point C of the pulling fin moves for a small displacement to adjust the second roller die and the third roller die to reach an accurate position (at the moment, the second roller die is kept fixed). The third roller die main shaft A is of an inner shaft and outer shaft structure, an outer shaft of the third driving roller die A is disconnected with a power inner shaft during adjustment, and a pressing piece is fastened and rotated after adjustment is finished, so that the inner shaft and the outer shaft of the third driving roller die A are connected together. The number of teeth of the third roller die is different from that of the second roller die, and the number of teeth of the chain wheel assembly is determined by calculation according to the third roller die.

The third roller die main shaft A2034 and the third roller die B phase gear assembly 2033 adopt any one of the following states: relative rotation is carried out; and (4) locking state. The driven main shaft B2036 of the third roller die and the phase gear assembly 2037 of the third roller die adopt any one of the following states: relative rotation is carried out; and (4) locking state. Thereby adjusting the meshing phase of the third AB roller die. And after the center distance of the third upper AB roller die and the third lower AB roller die is adjusted, the gap between the transmission gears is removed and locked, and then the 2 shafts are ensured to stably run at a high speed without gaps, and uniform fins are formed by rolling.

The third roller die rotates relatively through the inner shaft structure and the outer shaft structure of the third roller die main shaft A assembly 2034; and the locking state adjusts the phase between the second roller die and the third roller die.

Preferably, the method further comprises the following steps: a feeding device (1); the feeding device (1) is connected with a strip tension guide unit (200).

Compared with the prior art, the invention has the following beneficial effects:

1. in the invention, the change of the size and the length of the product is adjusted only by modifying parameters by a program, the change of the width of the fin increases and decreases the number N of the paired roller dies, the pitch of the fin and the change of the wave height are changed into the paired roller dies, and the central drives are unchanged, so that the method is different from a stamping die, and greatly saves the die cost;

2. in the invention, the mechanical adjustment and the program adjustment of the whole transmission control system of the equipment system can adapt to the continuous automatic production of the radiating fins with various sizes and models, thereby greatly improving the production efficiency, greatly improving the model changing efficiency and saving the die sinking cost of various sizes;

3. the invention has reasonable structure and convenient use and overcomes the defects of the prior art.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of a belt material tension guide unit according to the present invention.

Fig. 3 is a schematic front structure view of the first roller die unit of the present invention.

Fig. 4 is a schematic side view of the first roll mold unit according to the present invention.

Fig. 5 is a schematic view of the working principle of the first roller die of the present invention.

Fig. 6 is a schematic front structure view of the second roll mold unit according to the present invention.

Fig. 7 is a schematic side view of the second roll mold unit according to the present invention.

Fig. 8 is a schematic structural diagram of the front side of the third roller die unit of the present invention.

Fig. 9 is a schematic side view of the third roller die unit according to the present invention.

Fig. 10 is a schematic view of a rectangular wave heat exchange fin formed by the present invention.

Fig. 11 is a schematic view of a third roll gap gear assembly of the present invention.

In the figure:

driven main shaft B2026 of second roller die of belt material tension guide unit 200

Strip tension guide wheel assembly 2001 second roller die phase gear assembly B2027

Tension pinch roller assembly 2002 second roll-die bearing seat assembly 2028

Tension drive wheel 2003 second roller die center distance adjusting screw 2029

Second roller die upper portion 20210 of belt material tension pressure sensor oscillating wheel component 2004

Tension member mounting side plate 2005 second roller mold lower portion 20211

Tension member mounting base 2006 second roller die drive sprocket assembly 20212

Tension compaction cylinder 2007 second roller die fin stripping assembly 20213

Second roller die width adjusting retainer ring 20214 of tension servo motor 2008

First roll mold unit 201 and third roll mold unit 203

First roller die base 2011 third fin roller die base assembly 2031

First roller die A main shaft lower cushion block 2012 and third roller die A main shaft lower cushion block 2032

First roller die adjustable gap gear assembly A2013 and third roller die gap gear assembly A2033

First roller die a spindle 2014 third roller die spindle a assembly 2034

First roller die B main shaft upper cushion 2015 third roller die B main shaft lower cushion 2035

First roller mould driven B main shaft 2016 and third roller mould driven main shaft B2036

First roller mold phase gear assembly B2017 and third roller mold phase gear assembly B2037

First roller die bearing housing assembly 2018 and third roller die bearing housing assembly 2038

First roller die center distance locking screw 2019 and third roller die center distance adjusting screw 2039

First roller die top 20110 third roller die drive sprocket assembly 20312

First roller die lower part 20111 third roller die fin stripping assembly 20313

The first roller die sprocket assembly 20112 third roller die width adjustment retainer ring 20314

First roller die fin stripping assembly 20113 third roller die upper portion 20310

Second roll mold unit 202 and third roll mold lower portion 20311

Second roll-die pedestal assembly 2021 fin shaping unit 204

Second roller die spindle a lower pad 2022 fin count cutting unit 205

The second roller die gap gear assembly a2023 fin outlet turn-over guide unit 206

Second roller die spindle A assembly 2024

Second roller die driven main shaft B lower cushion block 2025

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

Referring to fig. 1-10, the key device of the manufacturing method and manufacturing equipment of the radiating rectangular wave fin of the liquid medium is that 3 sets of opposite rotating roller dies roll an aluminum strip into a wave with a pitch P of approximate rectangular shape step by step. Each set of roller die is formed by mutually meshing a plurality of paired approximately involute gear-shaped blades with the same size, and two adjacent roller dies are dislocated by P/4. The center distance between the pair of roller mold sheets is enabled to have the thickness of an aluminum strip between the engaged teeth through a group of cushion blocks. The diameter, the pitch, the height and the angle of each set of roller die are different, and the forming comprises the steps of reducing the pitch of the gear teeth, heightening the gear teeth and changing the angle of the gear teeth in three steps. And the diameter of each set of roller die is different, and another group of cushion blocks are used for ensuring that the radiating fins are rolled and molded on the same plane. The rolling heat dissipation fins of the paired roller dies can be in multiple sizes, and the two cushion blocks can be changed along with the rolling heat dissipation fins to ensure the meshing gap and the same rolling plane. The installation form of the pair of roller die central shafts and the bearing device is convenient to disassemble, precise in positioning and quick in locking. The 3 groups of the pair of the roller dies have different tooth numbers, and the three pairs of the driving wheel devices have the same motion relation, namely the transmission ratio relation, that is, the tooth numbers rotating in unit time of each group of the roller dies are the same. The 3 pairs of mutually meshed roller die tooth sheets are fixed on 2 power shafts which can adjust the center distance, and the 2 shafts synchronously rotate oppositely without gaps and are obtained by a pair of gear pairs with adjustable gaps. The driving gear is divided into two identical gears in thickness and is sleeved on the driving shaft in an empty mode, the gears are adjusted to mutually dislocate through the positioning screws, and 2 teeth of the driving gear are meshed with driven gear teeth of the driving gear without gaps and are locked on the driving shaft through the connecting flange. The driven gear assembly of the central shaft of each set of roller dies has a phase adjusting function, and the roller dies and the main shaft are in key connection transmission. In order to ensure the same phase position of the transmission gear and the roller die teeth, the phase gear pair assembly is sleeved on the driving main shaft A and the driven main shaft B in an empty mode, and the locking flange is connected with the main shaft and the main shaft B after being locked. Phase synchronization is guaranteed between the 2 nd set of roller die and the 1 st set of roller die, a special speed reducer is installed on a driving shaft of the 2 nd set of roller die, the upper roller die and the lower roller die are meshed together to rotate slightly by manual rotation, the radiating fins are pulled to move for a certain distance, the 1 st roller die is kept fixed at the moment, the 2 nd driving shaft is separated from the 2 nd roller die in a power connection mode, and a fastening and locking compression piece is fastened after adjustment is finished, so that the driving shaft is connected with the roller die. In the same way, the No. 2 roller die is kept still, and the No. 3 roller die can adjust the phase position of the radiating fins. Ensuring that the radiating fins reach the same position when 3 pairs of dies are meshed on the waveform. The 3 groups of driving wheel devices can drive the chain wheel and chain mechanism according to a specified transmission ratio, can drive the chain wheel and chain mechanism according to the specified transmission ratio by using gears, and can also drive the chain wheel and chain mechanism according to the transmission ratio specified by an electronic gear program by using a servo motor to disperse power.

The three-step forming is a necessary forming process of the radiating fin, because the fin is generated by continuous rotation, each tooth on the rolling die has an entry slope and an exit slope similar to an involute, so that the fin cannot enter or exit at a right angle, the fin needs to be divided into 3 groups, the forming depth H of the upper and lower meshed hobs is gradually deepened, the pitch P is gradually reduced, the angle is gradually increased to approach 90 degrees, and the forming steps can be increased to enable the waveform rectangle of the radiating fin to be closer to 90 degrees or increase the requirement of the height of the rectangular wave.

3 when the set of roller dies roll press the radiating fins, the aluminum strip is bent and cut on the roller dies, the aluminum strip tends to be stuck on the roller dies after being discharged from the roller dies, and each pair of roller die outlets are provided with fin stripping devices to strip the fins.

The formed radiating fin further comprises a rocker arm wheel leveling device for leveling and excess fin length generated by instant pause when the fin is cut, the fin is pressed downwards under the action of gravity of the buffering detection wheel 2, the fin runs through a bending line to absorb the excess fin length, the rocker arm 20463 swings discontinuously, the swing amplitude is provided with a high-low position sensor, and when the sensor has a signal, the control system can reduce the movement speed of the fin and otherwise can accelerate the fin speed.

Still include gyro wheel leveling device because the fin walks the pitch arc, the fin has crooked needs carry out the flattening, and the leveling subassembly can reciprocate and lock just levels completely as the fin that the fin comes out behind 3 gyro wheels.

The device further comprises a cooling fin counting gear cutting device, a counting gear assembly, a fin cutting lower knife edge, an upper knife rest eccentric shaft, an upper knife edge assembly, a counting wheel servo motor, a counting wheel signal wheel, a signal sensor, a fin inlet guide assembly, a fin outlet guide assembly, a cutter servo motor and a fin outlet selection cylinder.

The pitch P of each tooth on the graduated circle of the fin counting gear cutting device is equal to the final pitch P3 of the fin, the thickness of the tooth is smaller than (P3)/4, the tooth height is larger than the height of the fin H3, and the servo motor with the fin length is set to rotate to drive the upper tool rest eccentric shaft and the upper knife edge assembly to move up and down to cut the fin instantly, so that the fin is cut off instantly.

In the invention, the change of the size and the length of the product is adjusted only by modifying parameters by a program, the change of the width of the fin increases or decreases the number N of the paired rolling dies, the pitch of the fin and the wave height are changed and replaced by the paired rolling dies, and all central drives are unchanged. The mechanical adjustment and the program adjustment of the whole transmission control system of the equipment system can adapt to the continuous production of the radiating fins with various sizes and models, and the production efficiency is greatly improved. The efficiency of the model changing is greatly improved, and the die sinking cost of various sizes is saved.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. The utility model provides an automatic roll-in former of flat top rectangular wave heat exchange fin which characterized in that includes: the device comprises a strip tension guide unit (200), a first roller die unit (201), a second roller die unit (202), a third roller die unit (203), a fin shaping unit (204), a fin counting and cutting unit (205) and a fin outlet overturning guide unit (206);

the strip tension guide unit (200) is arranged on the left side of the first roller die unit (201);

the second roller die unit (202) is arranged on the right side of the first roller die unit (201);

the fin shaping unit (204) is arranged on the right side of the third roller die unit (203);

the fin counting and cutting unit (205) is arranged on the right side of the fin shaping unit (204);

the fin outlet overturning guide unit (206) is arranged on the right side of the fin counting and cutting unit (205);

the automatic rolling forming equipment for the flat-topped rectangular wave heat exchange fins adopts at least two forming steps.

2. The flat-topped rectangular wave heat exchange fin automatic roll forming apparatus according to claim 1, wherein the strip tension guide unit (200) comprises: the device comprises a material-carrying tension guide wheel component (2001), a tension pinch roller component (2002), a tension driving wheel (2003), a material-carrying tension pressure sensor swinging wheel component (2004), a tension component mounting side plate (2005), a tension component mounting base (2006), a tension pressing air cylinder (2007) and a tension servo motor (2008);

the belt tension guide wheel component (2001) is arranged at one end of the belt tension guide unit (200);

the tension member mounting side plate (2005) is arranged at the other end of the strip tension guide unit (200);

the swinging wheel component (2004) of the belt material tension pressure sensor is connected with the tension component mounting side plate (2005);

the tension pinch roller assembly (2002) is arranged on one side close to the strip tension guide wheel assembly (2001);

the tension pinch roller assembly (2002) is arranged on the right side of the tension driving wheel (2003).

3. The flat-topped rectangular wave heat exchange fin automatic roll forming apparatus according to claim 1, wherein the first roll die unit (201) comprises: a first roller die upper part (20110) and a first roller die lower part (20111);

the first roller die lower part (20111) is arranged below the first roller die upper part (20110);

the second roll mold unit (202) includes: a second roll die upper section (20210) and a second roll die lower section (20211);

the second roll die lower part (20211) is arranged below the second roll die upper part (20210);

the third roll mold unit (203) includes: a third roller die upper part (20310) and a third roller die lower part (20311);

the third roller mold lower part (20311) is arranged below the third roller mold upper part (20310).

4. The automatic roll forming equipment for the flat-topped rectangular wave heat exchange fin according to claim 2, wherein the first roll mold upper part (20110), the first roll mold lower part (20111), the second roll mold upper part (20210), the second roll mold lower part (20211), the third roll mold upper part (20310) and the third roll mold lower part (20311) are capable of rolling the aluminum strip into a near-adjacent staggered rectangular wave shape in 3 steps;

the first roll mold unit (201) includes: the device comprises a first roller die base (2011), a first roller die A main shaft lower cushion block (2012), a first roller die adjustable gap gear assembly A (2013), a first roller die A main shaft (2014), a first roller die driven B main shaft upper cushion block (2015), a first roller die driven B main shaft (2016), a first roller die phase gear assembly B (2017), a first roller die bearing seat assembly (2018), a first roller die center distance locking screw (2019), a first roller die chain wheel assembly (20112) and a first roller die width adjusting check ring (20114);

the upper part (20110) of the first roller die is in key connection with the driven B main shaft (2016) of the first roller die;

the lower part (20111) of the first roller die is in key connection with a main shaft (2014) of a driving A of the first roller die;

the first roller die phase gear assembly A (2013) is sleeved on the first roller die driving A spindle (2014) in an empty mode;

the first roller die adjustable gap gear assembly A (2013) is locked and then is connected with a main shaft (2014) of the first roller die A in a key mode;

the first roller die phase gear assembly B (2017) is sleeved on the first roller die driven B main shaft (2016) in an empty mode;

and the first roller die phase gear assembly B (2017) is locked with the first roller die driven B spindle (2016).

5. The automatic roll forming equipment for the flat-topped rectangular wave heat exchange fins according to claim 4, wherein a first roll die bearing seat assembly (2018) is respectively mounted at two ends of the first roll die A main shaft (2014) and the first roll die driven B main shaft (2016);

the number of the first roller die bearing seat assemblies (2018) is 4;

the first roller die bearing block assemblies (2018) adopt a pair of back-to-back tapered roller bearings;

the first roller die bearing block can be adjusted in a sliding manner without gaps up and down on the guide rail;

the first roller die chain wheel assembly (20112) is arranged at one end of the right side of the first roller die unit (201);

the locking screws (2019) for the center distance between the left first roller die and the right first roller die can lock the upper parts (20110) of the first roller dies;

the first roller die chain wheel assembly (20112) can drive a first roller die driving A main shaft (2014) to drive a first roller die lower part (20111), and the first roller die phase gear assembly A (2013) is meshed with a first roller die adjustable gap gear assembly B (2017) and is connected with a first roller die driven B main shaft (2016);

the first roller die adjustable gap gear assembly A (2013) includes: the first roller die adjustable gap gear and the first roller die adjustable gap gear are connected with the flange;

the number of the first roller die adjustable gap gears is two;

the first roller die adjustable gap gear A is connected with the first roller die adjustable gap gear connecting flange;

the two first roller dies can adjust the gap and the two gears can move in a staggered manner;

the first roller die phase gear assembly B (2017) comprises: the first roller die phase width gear and the first roller die phase width gear are connected with a flange;

the first roller die phase width gear is sleeved on a first roller die driven B main shaft (2016) in an empty mode;

the first roller die phase width gear connecting flange is in key connection with a first roller die driven B main shaft (2016);

the upper cushion block (2015) of the main shaft of the first roller die B can adjust the main shaft (2014) of the first roller die A, and the first roller die is driven by the center distance of the main shaft (2016) of the first roller die B;

the main shaft (2014) of the first roller die A and the main shaft (2016) of the first roller die driven B can rotate relatively;

the gap of the transmission gear can be adjusted through the first roller die adjustable gap gear assembly A (2013).

6. The flat-topped rectangular wave heat exchange fin automatic roll forming apparatus according to claim 5, further comprising: a first roller die fin stripping assembly (20113);

the first roller die fin stripping assembly (20113) comprises: the first roller die fin stripping lower support, the first roller die fin stripping height adjusting rod and the first roller die fin stripping sheet;

the first roller die fin stripping sheet is arranged between a first roller die lower part (20111) and a first roller die upper part (20110).

7. The flat-topped rectangular wave heat exchange fin automatic roll forming apparatus according to claim 1, wherein the second roll die unit (202) comprises: the device comprises a second roller die base (2021), a second roller die main shaft A lower cushion block (2022), a second roller die phase gear assembly A (2023), a second roller die main shaft A assembly (2024), a second roller die main shaft B lower cushion block (2025), a second roller die driven main shaft B (2026), a second roller die phase gear assembly B (2027), a second roller die bearing seat assembly (2028), a second roller die center distance adjusting screw (2029), a second roller die driving chain wheel assembly (20212), a second roller die fin stripping assembly (20213) and a second roller die width adjusting retainer ring (20214);

the second roll die main shaft A component (2024) adopts an inner shaft and an outer shaft.

8. The apparatus for automatically roll-forming a flat-topped rectangular wave heat exchange fin according to claim 7, wherein the second roll-die spindle a-assembly (2024) comprises: the inner shaft of the second roller die main shaft A, the outer shaft A of the second roller die and a second roller die phase gear assembly A (2023);

the second roll-to-die phase gear assembly a (2023) comprises: a harmonic reducer;

the harmonic speed reducer includes: the harmonic reducer driving gear and the harmonic reducer rotating pressing piece can deform the outer gear ring and the harmonic reducer driven gear;

the driving gear of the harmonic reducer is connected with an inner shaft key of a second roll mold main shaft A;

the second roll-to-die phase gear assembly a (2023) comprises: the second roll mold phase gear assembly A is connected with a flange;

the inner shaft of the second roller die main shaft A is in key connection with a driving gear of the harmonic reducer;

the second rolling die phase gear assembly A is connected with the connecting flange and the second rolling die outer spindle A through a key;

the inner shaft of the second roll mold main shaft A and the outer shaft A of the second roll mold can rotate relatively and are locked by the harmonic reducer rotating and pressing part;

the inner shaft of the second roll die main shaft A and the second roll die outer main shaft A adopt any one of the following states:

-relative rotation:

-a locked state:

the harmonic reducer of the second roll die phase gear assembly A (2023) can adjust the phase difference between the first roll die unit (201) and the second roll die unit (202).

9. The flat-topped rectangular wave heat exchange fin automatic roll forming apparatus according to claim 1, wherein the third roll die unit (203) comprises: a third fin roller die base (2031), a third roller die spindle A lower cushion block (2032), a third roller die gap gear assembly A (2033), a third roller die spindle A assembly (2034), a third roller die spindle B lower cushion block (2035), a third roller die driven spindle B (2036), a third roller die phase gear assembly B (2037), a third roller die high-precision bearing seat assembly (2038), a third roller die center distance adjusting screw (2039), a third roller die drive sprocket assembly (20312), a third roller die fin stripping assembly (20313) and a third roller die width adjusting retainer ring (20314);

the third roller die spindle a assembly (2034) comprising: a third roller mold phase gear assembly A (20343);

the third roller phase gear assembly a (2033) comprises: a third roller die phase gear assembly harmonic reducer;

the third roller mold phase gear assembly A (2033) and the third roller mold phase gear assembly B (2037) can adjust the phase of the lower part (20311) and the upper part (20310) of the third roller mold;

the gap of the transmission gear can be adjusted through the third roller die adjustable gap gear assembly A (2033).

10. The flat-topped rectangular wave heat exchange fin automatic roll forming apparatus according to claim 1, further comprising: a feeding device (1); the feeding device (1) is connected with a strip tension guide unit (200).

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