KR20160113486A - tube and fin assembly apparatus of heat ecchanger - Google Patents

Abstract

The present invention relates to a tube and fin assembly apparatus of a heat exchanger, comprising: a tube transfer unit having a pair of tube transfer screws installed on both sides of a frame to support both end portions of a tube and transfer tubes which are arrayed while each of the tubes is spaced apart from each other; a heat radiation fin supply unit to supply a heat radiation fin between the each of the tubes transferred by the tube transfer unit, in order to braze each tube; and a separation fin supply unit supplying a separation fin between the tubes transferred by the tube transfer unit periodically to prevent brazing of neighboring tubes.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube and a fin assembly apparatus for a heat exchanger,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger assembling apparatus, and more particularly, to a heat exchanger assembling apparatus, and more particularly, to a heat exchanger assembling apparatus having a tube constituting a heat exchanger, a heat exchanger for assembling a heat dissipating fin provided for widening a heat dissipating area, And more particularly, to a tube and pin assembling apparatus.

Generally, the heat exchanger is provided with a passage portion through which the heat exchange medium can flow, and is designed to perform heat exchange with the outside air while the heat exchange medium flows through the passage portion. The type of the heat exchange medium and the heat exchange medium A variety of methods have been developed depending on internal pressures such as a fin tube type, a serpentine type, a drawn cup type, and a parallel flow type. have

In such a heat exchanger, a heat exchanger core (generally called a Heater Core Builder, an Evap Core, a Radiator Core, or an Inter Cooler Core) in which heat exchange is mainly performed is composed of a header and a radiating fin and a tube which are stacked and fixed between the header.

The parallel flow type heat exchanger of the heat exchangers includes a pair of header tanks arranged side by side and a plurality of tubes disposed side by side between the header tanks and having both ends thereof inserted and fixed in the tube insertion holes formed in the header tank, And a heat dissipating fin having a large heat transfer area and being disposed between the tubes so that the heat exchange medium flowing in the tubes can efficiently exchange heat with the outside.

In the conventional heat exchanger thus configured, both ends of the tubes are inserted into the tube insertion holes of the header tank installed parallel to each other, and the heat transfer fins are inserted between the tubes, and are supported by the jig and inserted into the brazing furnace. In the heat exchanger supported by the jig and thus introduced into the brazing furnace, the clad material clad on the header tank is melted, the tube and the header tank are joined, and the clad material installed on the surface of the heat dissipating fin is melted, The fins are joined.

When the size of the heat exchanger is relatively large, the assembly of the heat exchanger is performed by a single jig. However, a relatively large number of operations are required for assembly using a jig.

In view of this, Japanese Patent Application Laid-Open No. 2008-116117 discloses a fuel cell system comprising a pair of header tank portions spaced apart from each other by a predetermined distance, and a plurality of lines stacked in the tank longitudinal direction of the header tank portion, A method of manufacturing a heat exchanger having a tube for heat exchange through which a heat exchange fluid flows, comprising the steps of: arranging tubes between the header tank portions; installing partitioning members for blocking the space in the header tank portion in the longitudinal direction of the tank And dividing the plurality of partitioning members into a plurality of heat exchangers by cutting the space between the partitioning members along the longitudinal direction of the tube.

In order to manufacture the heat exchanger by the above-described manufacturing method, however, the above-described method of manufacturing the heat exchanger has a structure in which only the header tank partitioned by the partitioning members is cut along the longitudinal direction, There is a problem that the heat dissipating fin or the tube must be cut.

The cutting of the heat-radiating fins or tubes requires a lot of working air, and it is difficult to improve the productivity. In the case of the heat-dissipating fin, the cut surface is not cut cleanly, and thus the appearance is poor.

Meanwhile, Korean Patent Publication No. 2009-01021497 (Mar. 4, 2009) discloses a device for automatically assembling a heat exchanger. The posted heat exchanger automatic assembling apparatus includes a fin feeder including a fin tray having a plurality of fin receiving portions and a fin tray feed portion for feeding the fin trays; A tube feeder comprising a tube picket for receiving a plurality of tubes, a tube dispenser for distributing the tubes, and a tube picket conveyance unit for feeding the dispensed tube so that the tubes are sequentially housed in the tube picket; And a pin feed channel for guiding the fins stored in the fin tray to be transferred to the tube seating portion and a pin guide for guiding the guided pin to be interposed between the respective tubes on which the guided pin is seated, And a pin-tube lamination part comprising a pin pusher for interposing the fin between the tubes, and a core compression part for compressing the heat exchanger core.

Such a conventional automatic heat exchange apparatus has a structure in which the tube is supplied from the tube picket to the tube seat portion and the pin is supported therebetween, so that the structure is relatively complicated and the supply of the tube and the supply of the heat radiation fin are alternately performed There is a problem that the assembling defects are large and the spacing between the tubes at the time of supplying the fin is not widened between the tubes, so that the supply of the radiating fins is not smoothly performed.

There is a problem in that different types of radiating fins of the tubes can not be selectively supplied.

Korean Patent Publication No. 2009-01021497 (2009.04.04)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a heat exchanger and a heat exchanger in which heat dissipating fins and separating fins are selectively supplied between tubes arranged at predetermined intervals, And a heat exchanger tube and a pin assembly device.

According to an aspect of the present invention, there is provided an apparatus for coupling a tube of a heat exchanger and a radiating fin, the tube radiating apparatus comprising: A tube conveying unit having a pair of tube conveying screws,

 A heat radiating fin supply unit for supplying heat radiating fins for brazing with the tubes between the tubes conveyed by the tube conveying unit,

And a separation pin feeding unit for feeding a separation pin between the tubes conveyed by the tube conveying unit to prevent brazing of adjacent tubes of the tubes periodically between the tubes.

In the present invention, the tube transfer unit is provided with a driving unit for transferring the tube transfer screw, and helical spiral grooves are formed in the outer circumferential surfaces of the tube transfer screws, in which both ends of the tube supplied by the tube supply unit are inserted, respectively A first tube array extension portion formed to have a relatively larger pitch than a spiral groove pitch is formed at a portion continuous with the helical groove and corresponding to the radiating fin supply unit,

A second tube array extension portion is formed at a portion corresponding to the separation pin supply unit so as to have a relatively larger pitch than a spiral groove pitch.

The tubes and the pin assembling device of the heat exchanger according to the present invention can supply the split pins for the division after the heat radiating fins of the tubes constituting the core of the heat exchanger are supplied with a certain number of radiating fins for the post- It is possible to reduce the number of workings due to the supply of the separating pins and the reliability of the assembling of the tube and the radiating fin.

1 is a front view showing a method of manufacturing a heat exchanger,
FIG. 2 is a perspective view showing a tube and a pin assembly assembled by a tube and a pin assembly of a heat exchanger according to the present invention,
FIG. 3 is a perspective view showing a tube and a pin assembly device of a heat exchanger according to the present invention, FIG.
FIG. 4 is a perspective view illustrating the tube delivery screw shown in FIG. 2,
Fig. 5 is a side view showing the conveying screw extracted from the present invention. Fig.

FIG. 1 shows a heat exchanger that is divided after assembly, and FIGS. 3-5 illustrate a tube and pin assembly of a heat exchanger according to the present invention. .

Referring to FIG. 1, the heat exchanger includes a pair of first and second header tanks 10 and 20 arranged in parallel as a parallel flow type used as a refrigerator, a condenser or an evaporator of various air conditioners, A plurality of tubes (not shown) which are arranged side by side between the tanks 10 and 20 and whose both ends are inserted and fixed in the tube insertion holes 11 and 21 formed in the first and second header tanks 10 and 20, And a heat dissipating fin 40 disposed between the tubes 30 and having a large heat transfer area so that the heat exchange medium flowing in the tubes 30 can effectively exchange heat with the outside.

In order to manufacture such a heat exchanger, a passage through which the heat exchange medium flows is formed in the longitudinal direction, and the baffle 51 is inserted into the first and second header tanks 10 and 20 coated with the clad material to partition the passage, And a baffle setting step of setting the partition baffle (52) and (53) so as to be adjacent to the area where the baffle is formed. In order to allow the heat exchange medium passages of the first and second header tanks 10 and 20 to communicate with each other, both ends of the tubes 30 are inserted into the tube insertion holes formed in the first and second header tanks 10 and 20, And the tube assembly is provided with radiating fins (40) coated with a clad material between tubes (30) spaced apart at a predetermined interval, and between the partition baffles (52) and (53) And the separation pins 45, which are not coated with the clad material, When the assembling for the connection of the heat exchanger is completed as described above, the heat exchanger assembly is inserted into the brazing furnace to heat the first and second header tanks 10 and 20 or the tube 30, The tubes 30 for partitioning the regions corresponding to the divided portions of the first and second header tanks 10 and 20 as described above are formed in the brazing step Since the separation pins 45, which are not coated with the clad material, are inserted, mutual bonding is not achieved. When the brazing step is completed as described above, the heat exchanger dividing step of separating the separating member from the heat exchanger assembly and cutting the partition baffles (52) and (53) of the first and second header tanks to manufacture the heat exchangers .

The tubes and the pin assembly device 100 for assembling the heat dissipating fins and the separation fins between the tube assemblies, that is, the tubes in the process of manufacturing the heat exchanger as described above, are shown in Figs. 3 to 5 .

Referring to the drawings, a tube and pin assembly device 100 of a heat exchanger according to the present invention includes a cartridge 120 installed vertically to a frame 110 to support tubes 30 for assembly in a stacked state, And a tube supply unit 130 installed at a lower portion of the cartridge and individually discharging the tubes 30 stacked by the cartridge 120 one by one from the bottom. And a tube transfer unit (150) for intermittently transferring the two ends of the tube, which are individually discharged from the tube supply unit (130) one by one, on the lower side of the tube supply unit (130) A radiating fin supply unit 160 for supporting radiating fins 40 between the tubes 30 and a radiating fin supply unit 160 for supplying a certain number of radiating fins 40 And a separation pin supply unit 170 for supplying the separation pins 45 between the tubes 30 which need to be divided as described above.

The apparatus 10 for coupling the tube of the heat exchanger and the radiating fin according to the present invention constructed as described above will be described in detail as follows.

3 and 4, the tube supply unit 140 can take out the tubes 30 that are stacked on the cartridge 120, one by one, and can be taken out individually A first rotating shaft 141 rotatable by a driving unit (not shown) is installed at a lower portion of the cartridge 120 and the tubes 30 stacked on the cartridge 120 during rotation are provided on the first rotating shaft 141 And supply rotors 142 and 143 for taking out and supplying them one by one are installed. The tube supply unit is not limited to the above-described embodiment, but may be a structure that can periodically supply the tubes to the tube feed screws 151 and 152 of the tube feed unit 150.

The tube transfer unit 150 transfers the tubes drawn from the cartridge 120 while being spaced apart from each other by a predetermined distance. The tube transfer unit 150 includes the tube feed screws 151 and 152 driven by a driving unit do.

The installation intervals of the tube feed screws 151 and 152 that support the both ends of the tube 30 intermittently supplied by the tube feed unit are set such that both ends of the tube 30 are formed in the tube feed screws 151 and 152 And is formed to be substantially narrower than the length of the tube 30 so as to be supported on the spiral. The width of the helical grooves 151a and 152a formed in the tube feed screws 151 and 152 is greater than the thickness of the tube 30 and the pitch P of the helical grooves 151a and 152a is spaced apart (See Fig. 5).

A table 111 for supporting the tubes 30 supported at both ends in the helical grooves 151a and 152a of the tube feed screws 151 and 152 is disposed between the tube feed screws 151 and 152 And guide portions 112 are provided on both sides of the table 111 and are continuous from the outlet of the tube feed screws 151 and 152.

The table 112 is provided with a conveyor 113 for smoothly moving the heat radiating fins provided between the tubes 30 and the heat radiating fins supplied by the heat radiating fin supplying unit described later. The conveyor 113 may be a belt conveyor, and two conveyor belts may be installed parallel to each other in the conveying direction.

The separation pins 45 supplied by the radiating fins 40 and the separation pin supply unit 170 supplied by the radiating fin supply unit 160 can be smoothly inserted into the tube conveying screws 151 and 152, First and second tube array expansions 153 and 154 for expanding the spacing of the tubes 30 supported by the tube conveyance screws 151 and 152 and the upper portions of the tubes 30 are respectively formed.

The first and second tube array extensions 153 and 154 are formed on the tube feed screws 151 and 152 of the radiating fin supply nozzle 160 and the radiating fin supply nozzle 160, And the pitches of the grooves 151a and 152a are formed relatively large. The first and second tube array expansions 153 and 154 are formed such that the inclination angle of the spiral portion having a relatively large pitch is enlarged in the outward direction so that the upper portion of the tubes 30 supported is expanded.

The radiating fin supply unit 160 supplies the radiating fins 40 between the tubes arranged and arranged as described above. The radiating fin supply unit 160 includes a frame 111 on the side corresponding to the first tube array extension 153, And the radiating fin supply nozzle 161 is provided on the outlet side of the radiating fin supply conveyor 162 for supplying the radiating fin 40 and is supplied by the radiating fin supply conveyor 162 Radiating fins (40) of the corrugated type are discharged through the tubes (30). The supply of the heat radiating fins 40 to the heat radiating fin supply conveyor 162 is not shown in the drawings, but the heat radiating fins 40 supplied by the separate heat radiating fin cartridge or manufactured by the heat radiating fin manufacturing apparatus can be continuously supplied.

On the other hand, the separation pin supply unit 170 has substantially the same configuration as the heat radiation fin supply unit 160. That is, the separation pin supply unit 170 is provided with a separation pin supply nozzle 171 in the frame 111 corresponding to the first tube array extension 154, and the separation pin supply nozzle 171, Is provided on the outlet side of the separating pin feed conveyor 172 for feeding the separating pin 45 and the separating pin 45 of the corrugated type supplied by the separating pin feeding conveyor 172 is inserted into the tube wall 30, Respectively. The supply of the heat radiating fins 40 to the separating pin supply conveyor 172 is not shown in the drawings, but the separating fin 45 produced by the heat radiating fin manufacturing apparatus or supplied by a separate heat radiating fin cartridge can be continuously supplied. The radiating fin supply unit 160 and the separation pin supply unit 170 are installed adjacent to the tube delivery screws 151 and 152 installed parallel to each other, .

The tube conveying screws 151 and 152 are rotated at substantially the same rotational speed by the driving unit. For this purpose, worm wheels 155 and 156 are installed at the ends of the tube conveying screws 151 and 152 And worms 157 and 158 mounted on a driving shaft 159 rotated by a driving unit (not shown) and coupled to the worm wheels 155 and 156, respectively.

The operation of the heat exchanger tube and heat sink fin assembly according to the present invention constructed as described above will be described as follows.

Both ends of the tube 30 can be supported in the helical grooves 151a and 152a of the tube feed screws 151 and 152 by the tube feed unit 130 in order to assemble the assembly of the radiating fins and the separation pins of the tube Periodically. The tube feed screws 151 and 152 are rotated by the worm wheels 155 and 156 engaged with the worms 157 and 158 installed on the driving shaft of the driving unit, The pitch of the tube 30 supported by the first and second tubes 151a and 151a is transferred. By repeating the above operation, the tube feed screws 151 and 152 are moved to a pitch of the helical grooves 151a and 152a in a state where the tubes 30 are supported in parallel to the helical grooves 151a and 152a thereof The corresponding distance is intermittently transmitted.

The tubes 20 arranged in the course of being transported with the tube transporting screws 151 and 152 being arranged in the first tube array extension part 153 of the tube transporting screws 151 and 152 The mutually adjacent tubes 30 are separated from each other. At this time, since the forming angle of the helix is inclined so that the upper side is widened, the upper end side of the tubes 30 maintains a state of being wider than the lower end side.

When the upper ends of the tubes 30 are opened by the first tube array extension parts 153 of the tube feed screws 151 and 152 as described above, the radiating fins 40 are heated by the radiating fin supply unit 160 The radiating fin 40 is discharged from the radiating fin supply nozzle 161 and supplied between the tubes 30. The supply of the radiating fins 40 by the radiating fin supply unit 160 is performed by supplying the radiating fin 40 discharged from the belt conveyor to the radiating fin supply nozzles 161 provided correspondingly between the tubes 30, Is discharged. Since the upper part of the tubes 20 is opened when the radiating fins 40 are supplied as described above, defects due to the supply can be relatively reduced.

After a predetermined number of the radiating fins 40 are supplied as described above, the radiating fins are not supplied between the tubes for preventing the brazing, and the radiating fins 40 are not supplied between the tubes 30 The separating pin supply unit 170 supplies the separating pin 45 that is not coated with the cladding material.

The supply of the radiating fin 200 between the tubes 30 is completed by the radiating fin supply unit 160 as described above and the supply of the radiating fin 200 between the tubes where the radiating fin is not supplied after the certain radiating fin 40 is supplied The radiating fins 40 and the separating pins 45 are assembled by the feeding force of the tube conveying screws 151 and 152 to the table (Not shown).

A guide portion 112 is formed on the end side of the tube conveying screws 151 and 152 in a continuous direction and a conveyor 310 for conveying the assembled tube assembly is installed on the table 111 Since it is installed, smooth transport is achieved.

As described above, the tube and pin assembly device of the heat exchanger according to the present invention can automatically assemble the radiating fins, the tubes, and the separation pins constituting the core of the heat exchanger, thereby improving the productivity and preventing the assembly failure can do.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

The tube and pin assembly device of the heat exchanger of the present invention can be widely applied to core assembly of various heat exchangers and component assembling devices on various strips.

Claims (3)

A tube transfer unit provided on both sides of the frame and having a pair of tube delivery screws for supporting both ends of the tube and transferring the tubes in a state of being arranged to be spaced apart from each other by a predetermined distance;
A heat radiating fin supply unit for supplying heat radiating fins for brazing with the tubes between the tubes conveyed by the tube conveying unit,
And a separating pin supply unit for supplying a separating pin between the tubes conveyed by the tube conveying unit to prevent brazing of adjacent tubes of the tubes periodically between the tubes. Pin assembly device. The method according to claim 1,
Wherein the tube transfer unit is provided with a driving part for transferring the tube transfer screw and a helical groove is formed in an outer circumferential surface of the tube transfer screw for inserting both ends of a tube supplied by the tube supply unit, And a first tube array extension portion is formed at a portion corresponding to the radiating fin supply unit so as to have a relatively larger pitch than a spiral groove pitch,
Wherein a second tube array extension portion is formed at a portion corresponding to the separation pin supply unit so as to have a pitch relatively larger than a spiral groove pitch. The method according to claim 1,
Wherein a belt conveyor is installed on a table between the tube conveying screws, the belt conveyor being driven by a driving part for smoothly conveying the tubes supported by the tube conveying screws at both ends thereof.

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