WO2016203593A1 - 熱交換器用フィンへの扁平チューブ挿入装置 - Google Patents
熱交換器用フィンへの扁平チューブ挿入装置 Download PDFInfo
- Publication number
- WO2016203593A1 WO2016203593A1 PCT/JP2015/067534 JP2015067534W WO2016203593A1 WO 2016203593 A1 WO2016203593 A1 WO 2016203593A1 JP 2015067534 W JP2015067534 W JP 2015067534W WO 2016203593 A1 WO2016203593 A1 WO 2016203593A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flat tube
- fin
- notch
- heat exchanger
- guide body
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
- B21D53/085—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal with fins places on zig-zag tubes or parallel tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
- F28F1/325—Fins with openings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/12—Fins with U-shaped slots for laterally inserting conduits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49336—Blade making
Definitions
- a heat exchanging medium for heat exchange circulates in a state in which a plurality of heat exchanger fins each having a plurality of notches formed from one side to the other side in the width direction are stacked.
- the present invention relates to a flat tube insertion device for a heat exchanger fin for inserting a flat tube into a notch.
- the core of a heat exchanger in a cooler or the like has a tube for circulating a heat exchange medium and a heat exchanger fin (hereinafter simply referred to as a fin) for substantially increasing the surface area of the tube. .
- the core of such a heat exchanger is manufactured by assembling separately manufactured tubes and fins.
- a heat exchanger manufacturing apparatus one having a configuration as disclosed in Patent Document 1, for example, is known.
- Patent Document 1 includes a step of arranging flat tubes and a step of supplying fins between the flat tubes, and there is a limit to improving assembly efficiency.
- notches are formed at a plurality of positions in the longitudinal direction of the fin at predetermined intervals in order to attach the flat tube. If you try to insert a flat tube into all of these notches at once, the frictional force acting on the fins will increase, and you will have to increase the pushing force when inserting the flat tube, resulting in a large drive unit. Therefore, there is a problem that the manufacturing cost increases. Further, it has been confirmed that the fin is deformed by the frictional force acting on the fin.
- the present invention has been made to solve the above-mentioned problems, and the object of the present invention is to provide a flat tube for a heat exchanger fin capable of assembling a heat exchanger core efficiently and with a high yield. To provide an insertion device.
- a plurality of heat exchanger fins in which a plurality of notches cut out from one side to the other side in the width direction are formed in the longitudinal direction are laminated in the plate thickness direction and aligned in the longitudinal direction.
- a fin stack configured by inserting a long guide body in the stacking direction so as to communicate the notches of the plurality of heat exchanger fins to at least one of the plurality of notches.
- a flat tube is arranged in an intermittent arrangement with respect to the fin laminate arrangement part to be arranged and the notch part in which the guide body is not inserted, and the notch part in the width direction of the heat exchanger fin
- a flat tube placement portion disposed on the opening side, a flat tube insertion drive portion for relatively approaching the flat tube and the cutout portion to insert the flat tube into the cutout portion, and Flat
- a contact plate for contacting the other side edge of the heat exchanger fin in the width direction, a guide body removing portion for removing the guide body from the fin laminate,
- the position of the cutout portion where the flat tube is not inserted is determined as the flat tube.
- a flat tube intermittently-inserted fin laminate disposing portion that is used in place of the fin laminate disposing portion and disposed in alignment with the position of the flat tube disposed in the disposing portion. It is the flat tube insertion apparatus to the fin for heat exchangers characterized by the above-mentioned.
- a plurality of heat exchanger fins in which a plurality of cutout portions cut out from one side in the width direction to the other side are formed in the longitudinal direction are laminated in the plate thickness direction, and the plurality of cutouts arranged in the longitudinal direction.
- a flat tube is disposed in an intermittent arrangement with respect to the body arrangement portion and the notch portion into which the guide body is not inserted, and on the opening side of the notch portion in the width direction of the heat exchanger fin.
- a flat tube placement portion for relatively approaching the flat tube and the cutout portion to insert the flat tube into the cutout portion, and the flat tube.
- a contact plate for contacting the other edge in the width direction of the heat exchanger fin
- a guide body removing unit for removing the guide body from the fin laminate
- the flat tube placement portion, the flat tube insertion drive portion, the abutment plate, and the guide body removal portion are disposed in the laminate placement portion, and the flattened portion in the notch portion of the fin laminate is formed by the flat tube placement portion.
- a new flat tube is disposed in an arrangement corresponding to the position of the notch where the flat tube is not inserted, and the flat tube arrangement
- a flat tube insertion device into a fin for a heat exchanger characterized in that it includes a second flat tube disposing portion that is used in exchange for the installation portion.
- the guide body removing portion is disposed in the fin laminated body placement portion, and a guide body restriction portion for restricting a placement position of the guide body, and a drive stroke amount when the flat tube is inserted into the notch portion. It is preferable that the flat tube insertion drive unit is configured to be larger than the insertion amount of the guide body with respect to the notch.
- the guide body that has entered the notch is removed from the heat exchanger fin when the first flat tube is inserted into the notch by the very simple configuration. be able to.
- the flat tube insertion drive unit changes the insertion speed of the flat tube with respect to the notch according to the amount of the flat tube inserted into the notch.
- the assembly work of the heat exchanger fin having a plurality of notches and the flat tube inserted into the notches can be performed efficiently and with a high yield.
- FIG. 1 is a plan view showing the entire heat exchanger fin
- FIG. 2 is an enlarged plan view of the main part of the heat exchanger fin.
- the heat exchanger fin 10 as shown in FIG. 1 is formed by pressing a thin metal plate such as aluminum.
- the metal thin plate which is the raw material of the heat exchanger fin 10 is provided in a state of being wound in a coil shape.
- the metal thin plate is fed by a feeder and then intermittently fed to a press device by a feeding device.
- the metal thin plate is pressed into a predetermined shape by a mold device (none of which is shown) provided in the press device, and then the metal thin plate is divided into product widths by dividing the metal thin plate into product widths. It is formed into a strip.
- the metal strip having the product width is divided into length dimensions set in advance in the longitudinal direction (feeding direction), formed on the heat exchanger fins 10, and then stacked and held in a stack apparatus described later.
- the heat exchanger fin 10 is formed with a notch 12 into which a flat tube T for supplying a heat exchange refrigerant is inserted.
- the notches 12 are formed at a plurality of locations at predetermined intervals along the longitudinal direction of the heat exchanger fins 10.
- a plate-like portion 14 is formed between the cutout portion 12 and the cutout portion 12 of the heat exchanger fin 10, and a louver 15 is formed in the plate-like portion 14. Further, on both ends of the louver 15 in the width direction, cut-and-raised portions 16 formed by cutting and raising a part of the plate-like portion 14 are formed.
- the heat exchanger fin 10 according to the present embodiment has two cut-up portions 16 for one louver 15.
- the notch 12 is formed only from one side in the width direction of the heat exchanger fin 10. Therefore, the plate-like portion 14 is connected in the longitudinal direction by the connecting portion 18 extending along the longitudinal direction.
- the cut-and-raised portion 16 on one side is the tip side of the plate-like portion 14 (the opening of the cut-out portion 12).
- the cut-and-raised part 16 on the other side is formed at the position of the connecting part 18.
- FIG. 1 although the flat tube T for making it enter into the notch part 12 is shown only in two places, in order to simplify a figure, the flat tube T shows all the notch parts. 12 is inserted.
- the heat exchanger fins 10 thus formed are stacked in a state where a predetermined number of the heat exchanger fins 10 are stacked in the plate thickness direction along the guide body G as shown in FIG.
- the flat tube insertion device 100 to the heat exchanger fin in the present embodiment includes a main body portion 110, a fin laminate arrangement portion 120, a flat tube arrangement portion 130, and a flat tube insertion drive.
- the main body 110 is formed in a frame shape.
- an abutment plate 150, a fin laminated body arrangement part 120, a flat tube disposition part 130, and a flat tube insertion drive part 140 are disposed in order from the top.
- Each of the fin laminated body arranging portion 120 and the flat tube arranging portion 130 is formed in a tray shape, and is attached to the main body portion 110 in an exchangeable manner.
- positioning part 120 concerning this embodiment is the two of the notch parts 12 formed in the fin 10 for heat exchangers in the heat exchanger fin 10 made into the state laminated
- the guide body G By inserting the guide body G, the fin laminated body in which a plurality of heat exchanger fins 10 are laminated (stacked) in the thickness direction by the guide body G is disposed. Since such a fin laminated body can be supplied by an apparatus configuration disclosed in an international patent application (PCT / JP / 2015-053428) by the applicant, a detailed description thereof is omitted here.
- the fin laminate arrangement portion 120 is formed in a frame shape having a rectangular shape in plan view, and is taken in and out of the main body portion 110 from the front side of the main body portion 110.
- the main body 110 is detachably formed.
- a guide body insertion portion 122 for inserting the guide body G is formed in a frame body 120 ⁇ / b> A orthogonal to the guide body G in the outer frame of the fin laminate arrangement portion 120.
- the guide body insertion portion 122 may be provided with a guide body restriction portion 122A that restricts the movement of the guide body G.
- a compression unit 124 for compressing the heat exchanger fins 10 stacked in the plate thickness direction along the guide body G in the plate thickness direction is arranged. It is installed.
- the compression portion 124 has an abutting portion 126 that abuts on the plate-like portion 14 of the heat exchanger fin 10, and is slidable along a frame 120 ⁇ / b> B parallel to the guide body G of the fin laminated body arranging portion 120. It is provided and is detachably attached to the frame body 120B of the fin laminate arrangement portion 120 by a fixing tool 128 such as a screw.
- a fixing tool recess 129 is formed along the longitudinal direction of the frame body 120B. Moreover, it can replace with the fixing tool 128 and the structure pressed by a fluid cylinder etc. can also be employ
- the configuration related to the compression unit 124 may be omitted.
- the position of the notch portion 12 of the heat exchanger fin 10 through which the guide body G is inserted is determined in the stacking direction. Can be set on the main body 110 in a state of being aligned. This is advantageous in that the risk of breakage of the notch 12 when the flat tube T is subsequently inserted into the notch 12 can be greatly reduced.
- a planar frame shape is formed in a rectangular frame shape like the fin laminate arrangement portion 120, as shown in FIG.
- a flat tube disposing portion 130 for disposing a flat tube T to be inserted into is disposed.
- the flat tube disposing portion 130 is also detachable from the main body portion 110 by being taken in and out of the main body portion 110 from the front side of the main body portion 110, similarly to the fin laminated body disposing portion 120.
- the guide body G is inserted into the flat tube disposition portion 130.
- the flat tubes T are disposed so as to be intermittently arranged with respect to the other notches 12 except the notch 12.
- the flat tube T is attached to the flat tube placement portion 130 so as to be inserted into the flat tube insertion portion 132.
- the intermittent arrangement of the flat tubes T will be described more specifically.
- the notch 12 located on both sides of the notch 12 in which the guide body G is inserted is used as a reference notch 12, and the position of the notch 12 located next to the reference notch 12 is blank (flat)
- the tube T is not disposed), and the flat tube T is disposed in the notch 12 located next to the blank notch.
- the flat tube T is disposed in the flat tube disposition portion 130 so that the insertion and non-insertion of the flat tube T are repeated with respect to the plurality of notches 12.
- the flat tube disposing portion 130 By adopting such a configuration of the flat tube disposing portion 130, intermittently (with respect to the plurality of notches 12 of the heat exchanger fin 10 disposed together with the guide body G in the fin laminated body disposing portion 120 ( Flat tubes T can be inserted every other). According to such an insertion form of the flat tube T, it is possible to prevent the deformation of the cutout portion 12 due to an external force such as a deformation resistance of the cutout burring portion or a frictional force acting on the cutout portion 12, and a flat tube insertion drive.
- the portion 140 can be reduced in size as compared with the conventional example. Moreover, the breakage and deformation
- a flat tube insertion drive portion 140 is disposed under the flat tube disposition portion 130 in the internal space of the main body 110.
- a servo motor in which a ball screw or the like is connected to the output shaft is preferably used.
- the mounting unit 142 on which the flat tube mounting unit 130 is mounted can be moved toward and away from the fin laminated body mounting unit 120.
- the lifting / lowering stroke amount (driving stroke amount) of the mounting portion 142 by the flat tube insertion driving portion 140 is set to be longer than at least the depth dimension of the notch portion 12. More specifically, the vertical stroke amount of the mounting portion 142 by the flat tube insertion driving portion 140 is at least the position of the lower end portion of the notch portion 12 provided in the fin laminate arrangement portion 120 and the flat tube arrangement portion. It is set to be equal to or greater than the separation distance of the upper end portion of the flat tube T disposed at 130 and the depth dimension of the notch portion 12.
- the guide body removal part which removes the guide body G penetrated by 12 from the notch part 12 can be comprised.
- the flat tube insertion drive unit 140 is configured so that the flat tube disposition unit 130 has the flat tube disposition unit 130 to the fin laminate disposition unit 120 according to the amount of insertion (insertion depth position) of the flat tube T into the notch 12.
- the approach speed (insertion speed of the flat tube T into the notch 12) is changed.
- the insertion speed of the flat tube T in the range of the depth position of two-thirds of the entire depth of the notch 12 from the opening 12A side of the notch 12 is defined as the first insertion speed
- the notch The insertion speed of the flat tube T in the range from the depth position of two-thirds to the innermost depth of the notch 12 is the second insertion speed that is lower than the first insertion speed.
- the second insertion speed in the present embodiment is as the insertion depth of the flat tube T into the notch 12 increases from the depth position of two thirds to the inner bottom with respect to the entire depth of the notch 12. The insertion speed gradually decreased.
- the flat tube insertion drive unit 140 inserts the flat tube T into the cutout portion 12 according to the insertion depth of the flat tube T into the cutout portion 12 (that is, the flat tube insertion drive portion 140 mounts the flat tube T.
- the ascending speed of the mounting portion 142 different, deformation of the notch 12 due to frictional force acting on the notch 12 when the flat tube T is inserted can be suppressed, and the product yield can be further increased. Convenient in terms.
- the operation of the flat tube insertion drive unit 140 is controlled by an operation control unit 160 that controls the operation of the flat tube insertion device 100 with respect to the heat exchanger fins.
- the operation control unit 160 includes a storage unit 162 that stores an operation control program in which a control command for each operation is stored, and each configuration of the flat tube insertion device 100 to the heat exchanger fin based on the operation control program.
- the CPU 164 can control the operation.
- Such an operation control unit 160 may be integrated with an operation control unit (not shown) of the flat tube insertion device 100 into the heat exchanger fin.
- the contact plate 150 in the present embodiment has at least a lower surface that is a flat surface, and is a connecting portion 18 that is an edge on the other side in the width direction of the heat exchanger fin 10 disposed in the fin laminated body disposing portion 120. It is formed so that it can contact
- Such a contact plate 150 is disposed in the main body 110 with the lower surface parallel to the horizontal plane.
- the flat tube intermittent insertion fin laminated body arrangement part 170 has the same outer shape as the fin laminated body arrangement part 120, and is replaced with the fin laminated body arrangement part 120.
- the unit 110 is used by being mounted.
- the flat tube is intermittently provided in the plurality of notches 12 in the integrated body of the guide body G and the heat exchanger fin 10 disposed in the fin laminated body disposing unit 120.
- the flat tube intermittent insertion body TS into which T is inserted is disposed in a positioned state.
- the flat position of the notch 12 where the flat tube T is not inserted is aligned with the flat position of the flat tube T disposed in the flat tube disposition portion 130. It is formed so that it can be disposed.
- the flat tube intermittent insertion laminate alignment portion 172 is made to correspond to the position of the notch portion 12 in the frame 170A orthogonal to the flat tube T arrangement direction of the flat tube intermittent insertion fin laminate arrangement portion 170. It is arranged in the state.
- a concave hole having a concave shape in plan view was formed in the frame body 170 ⁇ / b> A as the flat tube intermittent insertion laminate alignment portion 172.
- the flat tube intermittent insertion fin laminated body arranging unit 170 shifts the planar position of the notch 12 in the fin laminated body set in the fin laminated body arranging unit 120 by one in the longitudinal direction of the heat exchanger fin 10. In this state, the flat tube intermittent insertion body TS is disposed.
- the flat tube arrangement part 130 having the same shape can be used in the step of inserting the flat tube T into the notch part 12, This can contribute to a reduction in manufacturing cost by reducing the number of parts.
- the fin laminate including the guide body G and the heat exchanger fins 10 is set in the guide body insertion portion 122 of the fin laminate arrangement portion 120.
- the compression part 124 is attached to the frame body 120B of the fin laminated body arrangement part 120, and a plurality of heat exchanger fins 10 in the fin laminated body are placed in the longitudinal direction of the guide body G (stacking of the heat exchanger fins 10 (stack)).
- the fin laminated body arrangement unit 120 on which the fin laminated body is set is mounted inside the main body 110 from the front of the main body 110.
- the flat tube placement portion 130 in which the flat tube T is inserted into the flat tube insertion portion 132 is located at the internal position of the main body portion 110 from the front of the main body portion 110 as shown in FIG. 4. And it mounts
- FIG. After the fin laminated body arrangement part 120 and the flat tube arrangement part 130 are attached to the main body part 110 in this way, when the switch 180 arranged in the main body part 110 is operated, the flat tube insertion drive Part 140 is activated. Specifically, as shown in FIG.
- the flat tube T set in the flat tube disposition portion 130 enters from the opening 12 ⁇ / b> A side (lower side) of the notch portion 12 and moves the heat exchanger fin 10 upward.
- the flat tube T is inserted into the cutout portion 12 by lifting the connection portion 18 and bringing the connecting portion 18 into contact with the contact plate 150.
- the fin laminated body is utilized using the operation of inserting the flat tubes T into the heat exchanger fins 10. Therefore, the heat exchanger fin 10 and the guide body G can be separated (the guide body G is removed). If it is formed so that the thickness dimension of the guide body G is slightly narrower than the inner width dimension of the notch 12, the separation from the heat exchanger fin 10 can be performed smoothly.
- the extension speed of the flat tube insertion drive section 140 (the insertion speed of the flat tube T into the notch 12) is lower than the first insertion speed and the first insertion speed, and the insertion speed gradually increases.
- the flat tube T is inserted into the cutout portion 12 by two types of insertion speeds, ie, a second insertion speed that decreases (slowly becomes zero).
- the guide body G may be separated from the heat exchanger fins 10 by a guide body unloader as a guide body removing unit (not shown), in addition to separation by movement restriction of the guide body G by the guide body regulating unit 122A.
- the flat tube insertion drive unit 140 is shortened, the flat tube disposition unit 130 is separated from the fin laminate disposition unit 120, and the fin laminate disposition unit 120 and the flat tube disposition unit 130 are returned to their original positions. In this state, the flat tube T is intermittently inserted into the plurality of notches 12 of the heat exchanger fin 10 in a comb-like shape.
- positioning part 130 are each pulled out from the main-body part 110.
- the flat tube intermittent insertion body TS set in the flat tube intermittent insertion fin laminate arrangement part 170 is in a state in which the planar position of the notch 12 when it is set in the fin laminate arrangement part 120 is shifted by one. Will be set.
- positioning part 170 replaces the fin laminated body arrangement
- a flat tube disposition portion 130 in which the flat tube T is disposed under the same conditions as the flat tube disposition portion 130 shown in FIG. 6 used when forming the flat tube intermittent insertion body TS is prepared.
- the second flat tube disposition portion 130 is set at the same position as the flat tube disposition portion 130 used previously. In this way, by setting the flat tube intermittent insertion fin laminated body disposing portion 170 and the flat tube disposing portion 130 to the main body portion 110, the notched portion in which the flat tube T is not inserted in the flat tube intermittent insert TS. 12 and the flat position of the flat tube T set in the flat tube disposition portion 130 can be matched.
- the flat tube T can be inserted into the notch 12 to be inserted as shown in FIG. 10 in the same manner as the operation of inserting the flat tube T into the notch 12 at the first time.
- the friction force when the flat tube T is inserted into the cutout portion 12 is representative. Can be reduced. Thereby, size reduction of the drive part 140 for flat tube insertion and damage to the notch part 12 can be prevented.
- a header of the heat exchanger is obtained by attaching a header (not shown) to the front body of the heat exchanger core. Can do.
- the second flat tube disposition portion 190 is formed in the same outer shape as the flat tube disposition portion 130.
- the flat tube insertion portion 192 in the second flat tube disposition portion 190 uses the flat tube disposition portion 130 to remove other notches 12 except for the position where the flat tube T is attached to the notch 12 of the heat exchanger fin 10. Is formed at a planar position corresponding to.
- the method for inserting the flat tubes T into the heat exchanger fins 10 in the present embodiment is the first step of obtaining the flat tube intermittent insert TS and the step after obtaining the body immediately before the core of the heat exchanger. Since it can be performed in the same manner as the embodiment, detailed description thereof is omitted here.
- the flat tube disposition portion 130 is pulled out from the main body portion 110.
- the second flat tube disposing portion 190 is set on the main body 110 instead of the flat tube disposing portion 130.
- the flat tube insertion drive unit 140 is activated in the same manner as in the first insertion operation of the flat tube T, and the flat tube T is not inserted in the flat tube intermittent insertion body TS.
- a flat tube T can be inserted into the portion 12.
- the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention.
- the flat tube disposition portion 130 and the second flat tube disposition portion 190 are connected to the fin laminate disposition portion 120.
- positioning part 170 it is made to approach the flat tube intermittent insertion fin laminated body arrangement
- positioning part 170 it is not limited to this form. A form in which either one approaches the other or a form in which both approach each other can be appropriately employed.
- positioning part 120 in the internal space of the main-body part 110 is demonstrated.
- the opening 12A in the width direction of the cutout portion 12 of the heat exchanger fin 10 disposed in the fin laminate disposing portion 120 faces sideways, the contact plate 150, the flat tube disposing portion 130, and The form which has arrange
- positioning part 120 is employable.
- the insertion speed of the flat tube T into the notch 12 is divided into two types in the present embodiment, but the number of divisions of the insertion speed of the flat tube T into the notch 12 is limited to two types. Is not to be done. Further, the position at which the insertion speed of the flat tube T into the notch 12 is changed from the first insertion speed to the second insertion speed is not limited to the two-thirds position in the depth direction of the notch 12.
- the insertion speed of the flat tube T into the cutout portion 12 may be divided into three or more types, and the insertion speed is continuously decreased from the start of insertion of the flat tube T into the cutout portion 12 until the insertion is completed. It may be. Further, when the insertion speed of the flat tube T into the cutout portion 12 is changed stepwise, the insertion depth position of the flat tube T with respect to the cutout portion 12 that is the change position of the insertion speed can be changed as appropriate. .
- a recess (not shown) into which the connecting portion 18 side of the heat exchanger fin 10 can enter is inscribed on the lower surface of the contact plate 150. You may set up. By engraving such a recess, buckling of the heat exchanger fins 10 when the flat tube T is inserted into the notch 12 can be prevented, and the product yield can be improved.
- the configuration of the flat tube insertion device 100 to the heat exchanger fin can be adopted by appropriately combining the configurations described above.
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Abstract
Description
すなわち、本発明は、幅方向の一方側から他方側に向けて切欠かれた切欠部が長手方向に複数形成されてなる熱交換器用フィンが、板厚方向に複数枚積層され、長手方向に並ぶ複数の前記切欠部のうちの少なくとも1つに対して複数枚の前記熱交換器用フィンの前記切欠部を連通するように積層方向に長尺なガイド体が差し込まれて構成されるフィン積層体を配置するフィン積層体配置部と、前記ガイド体が差し込まれていない前記切欠部に対して、間欠配置で扁平チューブが配設されていると共に、前記熱交換器用フィンの幅方向における前記切欠部の開口部側に配設された扁平チューブ配設部と、前記扁平チューブを前記切欠部に挿入すべく、前記扁平チューブと前記切欠部とを相対的に接近させる扁平チューブ挿入用駆動部と、前記扁平チューブを前記切欠部に挿入する際において、前記熱交換器用フィンの幅方向の他方側端縁を当接させる当接板と、前記ガイド体を前記フィン積層体から除去するガイド体除去部と、前記扁平チューブ配設部に配設された前記扁平チューブを前記切欠部に挿入させてなる扁平チューブ間欠挿入フィン積層体において、前記扁平チューブが未挿入である前記切欠部の位置を、前記扁平チューブ配設部に配設されている前記扁平チューブの位置に位置合わせして配設すると共に、前記フィン積層体配置部と交換して用いられる扁平チューブ間欠挿入フィン積層体配設部と、を具備していることを特徴とする熱交換器用フィンへの扁平チューブ挿入装置である。
図1に示すような熱交換器用フィン10は、アルミニウム等の金属製の薄板をプレス加工することにより形成される。熱交換器用フィン10の原材料である金属製の薄板はコイル状に巻回された状態で提供されている。金属製の薄板はフィーダにより繰り出された後、送り装置によってプレス装置に間欠送りされる。金属製の薄板はプレス装置内に設けられた金型装置(いずれも図示せず)により所定の形状にプレス加工された後、金属製の薄板を製品幅毎に分割することにより製品幅の金属帯状体に形成される。製品幅の金属帯状体は、長手方向(送り出しされる方向)において予め設定された長さ寸法に分割され、熱交換器用フィン10に形成された後、後述するスタック装置に積層保持される。
このようにして形成された熱交換器用フィン10は、図3に示すようにガイド体Gに沿って板厚方向に所定枚数がスタックされた状態で積層されることになる。
ガイド体Gが挿入されている切欠部12の両隣に位置する切欠部12を基準となる切欠部12とし、これらの基準となる切欠部12の隣に位置する切欠部12の位置をブランク(扁平チューブTは配設されていない)とし、ブランクとした切欠部の隣に位置する切欠部12に扁平チューブTを配設する。このように複数の切欠部12に対して扁平チューブTの挿入および未挿入が繰り返されるようにして扁平チューブTが扁平チューブ配設部130に配設されている。
まず、図5に示すように、フィン積層体配置部120のガイド体挿入部122に、ガイド体Gと熱交換器用フィン10とからなるフィン積層体をセットする。次に、圧縮部124をフィン積層体配置部120の枠体120Bに取り付け、フィン積層体における複数枚の熱交換器用フィン10をガイド体Gの長手方向(熱交換器用フィン10の積層(スタック)方向)に圧縮し、ガイド体Gの長手方向における切欠部12の位置を揃えた状態を維持させる。このようにしてフィン積層体をセットされたフィン積層体配置部120は、本体部110の正面から本体部110の内部に装着される。
つづいて、熱交換器用フィン10における複数の切欠部12に対して扁平チューブTが間欠配置で挿入されている扁平チューブ間欠挿入体TSをフィン積層体配置部120から取り出し、図7に示すように、扁平チューブ間欠挿入体TSを扁平チューブ間欠挿入フィン積層体配設部170に移し替えをする。扁平チューブ間欠挿入フィン積層体配設部170にセットされた扁平チューブ間欠挿入体TSは、フィン積層体配置部120にセットされていた際における切欠部12の平面位置を一つ分ずらした状態でセットされることになる。このような扁平チューブ間欠挿入フィン積層体配設部170は本体部110のフィン積層体配置部120が収容されていた部分にフィン積層体配置部120に替えて本体部110に装着されることになる。
このようにして扁平チューブ間欠挿入フィン積層体配設部170と扁平チューブ配設部130とを本体部110にセットすることにより、扁平チューブ間欠挿入体TSにおいて扁平チューブTが未挿入である切欠部12と扁平チューブ配設部130にセットされている扁平チューブTとの平面位置を一致させることができる。
熱交換器用フィン10の複数の切欠部12に対する1回目の扁平チューブTの挿入がなされ、扁平チューブ間欠挿入体TSが形成された後、扁平チューブ配設部130を本体部110から引き出しする。つづいて、扁平チューブ配設部130に替えて第2扁平チューブ配設部190を本体部110にセットする。この後スイッチ180が操作されると、1回目の扁平チューブTの挿入作業時と同様に扁平チューブ挿入用駆動部140が作動し、扁平チューブ間欠挿入体TSにおいて扁平チューブTが未挿入だった切欠部12に扁平チューブTを挿入することができる。
Claims (4)
- 幅方向の一方側から他方側に向けて切欠かれた切欠部が長手方向に複数形成されてなる熱交換器用フィンが、板厚方向に複数枚積層され、長手方向に並ぶ複数の前記切欠部のうちの少なくとも1つに対して複数枚の前記熱交換器用フィンの前記切欠部を連通するように積層方向に長尺なガイド体が差し込まれて構成されるフィン積層体を配置するフィン積層体配置部と、
前記ガイド体が差し込まれていない前記切欠部に対して、間欠配置で扁平チューブが配設されていると共に、前記熱交換器用フィンの幅方向における前記切欠部の開口部側に配設された扁平チューブ配設部と、
前記扁平チューブを前記切欠部に挿入すべく、前記扁平チューブと前記切欠部とを相対的に接近させる扁平チューブ挿入用駆動部と、
前記扁平チューブを前記切欠部に挿入する際において、前記熱交換器用フィンの幅方向の他方側端縁を当接させる当接板と、
前記ガイド体を前記フィン積層体から除去するガイド体除去部と、
前記扁平チューブ配設部に配設された前記扁平チューブを前記切欠部に挿入させてなる扁平チューブ間欠挿入フィン積層体において、前記扁平チューブが未挿入である前記切欠部の位置を、前記扁平チューブ配設部に配設されている前記扁平チューブの位置に位置合わせして配設すると共に、前記フィン積層体配置部と交換して用いられる扁平チューブ間欠挿入フィン積層体配設部と、
を具備していることを特徴とする熱交換器用フィンへの扁平チューブ挿入装置。 - 幅方向の一方側から他方側に向けて切欠かれた切欠部が長手方向に複数形成されてなる熱交換器用フィンが、板厚方向に複数枚積層され、長手方向に並ぶ複数の前記切欠部のうちの少なくとも1つに対して複数枚の前記熱交換器用フィンの前記切欠部を連通するように積層方向に長尺なガイド体が差し込まれて構成されるフィン積層体を配置するフィン積層体配置部と、
前記ガイド体が差し込まれていない前記切欠部に対して、間欠配置で扁平チューブが配設されていると共に、前記熱交換器用フィンの幅方向における前記切欠部の開口部側に配設された扁平チューブ配設部と、
前記扁平チューブを前記切欠部に挿入すべく、前記扁平チューブと前記切欠部とを相対的に接近させる扁平チューブ挿入用駆動部と、
前記扁平チューブを前記切欠部に挿入する際において、前記熱交換器用フィンの幅方向の他方側端縁を当接させる当接板と、
前記ガイド体を前記フィン積層体から除去するガイド体除去部と、
前記フィン積層体配置部に配置され、前記扁平チューブ配設部と、前記扁平チューブ挿入用駆動部と、前記当接板と、前記ガイド体除去部と、により前記フィン積層体の前記切欠部に前記扁平チューブが間欠挿入されてなる扁平チューブ間欠挿入フィン積層体において、前記扁平チューブが未挿入である前記切欠部の位置に対応する配置で新たな扁平チューブが配設されていると共に、前記扁平チューブ配設部と交換して用いられる第2の扁平チューブ配設部と、
を具備していることを特徴とする熱交換器用フィンへの扁平チューブ挿入装置。 - 前記ガイド体除去部は、
前記フィン積層体配置部に配設され、前記ガイド体の配置位置を規制するガイド体規制部と、
前記扁平チューブを前記切欠部に挿入させる際における駆動ストローク量を前記切欠部に対する前記ガイド体の差し込み量よりも多くした前記扁平チューブ挿入用駆動部と、により構成されていることを特徴とする請求項1または2記載の熱交換器用フィンへの扁平チューブ挿入装置。 - 前記扁平チューブ挿入用駆動部は、前記切欠部に対する前記扁平チューブの挿入速さを、前記切欠部への前記扁平チューブの挿入量に応じて変化させていることを特徴とする請求項1~3のうちのいずれか一項に記載の熱交換器用フィンへの扁平チューブ挿入装置。
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