WO2016103443A1 - Manufacturing device for heat exchanger fin - Google Patents
Manufacturing device for heat exchanger fin Download PDFInfo
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- WO2016103443A1 WO2016103443A1 PCT/JP2014/084499 JP2014084499W WO2016103443A1 WO 2016103443 A1 WO2016103443 A1 WO 2016103443A1 JP 2014084499 W JP2014084499 W JP 2014084499W WO 2016103443 A1 WO2016103443 A1 WO 2016103443A1
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- metal strip
- product width
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- width
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- 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
Definitions
- the present invention relates to a heat exchanger fin manufacturing apparatus for manufacturing a heat exchanger fin having a plurality of through holes or a plurality of notches.
- heat exchangers such as coolers are generally configured by laminating a plurality of heat exchanger fins each having a plurality of through holes into which heat exchange tubes are inserted.
- Such heat exchanger fins can be manufactured by a heat exchanger fin manufacturing apparatus 1 as shown in FIG. 8 (see Patent Document 1).
- the heat exchanger fin manufacturing apparatus 1 is provided with an uncoiler 12 in which a thin metal plate 10 such as aluminum is wound in a coil shape.
- the thin plate 10 drawn from the uncoiler 12 through the pinch roll 14 is inserted into the oil applying device 16, and after processing oil is attached to the surface of the thin plate 10, the thin plate 10 is applied to the mold device 20 provided in the press device 18. Supplied.
- the mold apparatus 20 is provided with an upper die set 22 that can move up and down and a lower die set 24 that is stationary.
- a plurality of collared through holes (not shown) in which a collar having a predetermined height is formed around the through holes are formed at predetermined intervals (matrix-like arrangement) in a predetermined direction.
- a metal thin plate in which through holes and the like are processed is referred to as a metal strip 11.
- the processed metal strip 11 is formed in a state in which a plurality of heat exchanger fins that are products are arranged in the width direction. For this reason, an inter-row slit device 25 is provided at a downstream position of the mold device 20.
- the inter-row slit device 25 cuts the metal strip 11 intermittently fed by the first feeding device 26 with the upper blade 25A and the lower blade 25B engaged with each other, and has a long strip-like product width metal strip. 11A is formed.
- the metal strip 11A having a product width is cut into a predetermined length by the cutter 27 and formed on the heat exchanger fin 13 which is a manufacturing object.
- the heat exchanger fins 13 are accommodated in the stacker 28.
- a plurality of pins 29 are erected on the stacker 28 in the vertical direction.
- the heat exchanger fins 13 are stacked and held on the stacker 28 by inserting pins 29 into the through holes formed in the heat exchanger fins 13.
- the conventional heat exchanger fin 13 has a plurality of through holes into which the heat exchange tube is inserted into the metal strip 11.
- heat exchangers using multi-hole flat tubes are in circulation.
- a heat exchanger fin using this flat tube is shown in FIGS. 9A and 9B.
- a plurality of tube insertion portions 34 into which the flat tubes 32 are inserted are formed at a predetermined interval, and a louver 35 is formed between the tube insertion portion 34 and the tube insertion portion 34.
- a plate-like portion 36 is formed.
- the tube insertion portion 34 is formed only from one side in the width direction of the heat exchanger fin 30. Accordingly, the plurality of plate-like portions 36 between the tube insertion portion 34 and the tube insertion portion 34 are connected by a connection portion 38 extending along the longitudinal direction.
- the cut-and-raised portion 37 is used to form a gap in the upper and lower heat exchanger fins 30 and 30 when the heat exchanger fins 30 are stacked.
- the length of the product is arbitrarily changed.
- the feed length of one cut-off can be made longer than the feed length of one time (one mold closing) of the metal strip having the product width in the inter-row slit device.
- the metal strip having the product width is slacked downward.
- Patent Document 2 discloses a configuration of a heat exchanger fin manufacturing apparatus having a control unit for managing the state of slacking downward of a metal strip having a product width.
- the configuration of the control unit disclosed in Patent Document 2 may have complicated control contents, and the heat exchanger fin manufacturing apparatus employing such a control unit has a problem that the provision cost is expensive. is there. If the product width metal strips are separated from each other in order to prevent the product width metal strips from becoming entangled without using such an expensive control unit, the heat exchanger fin manufacturing apparatus becomes large. As a result, the production amount of the heat exchanger fins per unit area of the factory is reduced, and there is a problem that reduction of the production cost of the heat exchanger fins is hindered.
- the present invention has been made to solve the above-mentioned problems, and the object of the present invention is to provide a product that is inexpensive and small in size, but can be intermittently fed while the metal strips of the product width are slackened downward.
- An object of the present invention is to provide a heat exchanger fin manufacturing apparatus capable of preventing the metal strips having a width from being entangled with each other.
- the present invention comprises a mold apparatus for forming a metal strip having a plurality of through holes or a plurality of notches, and the metal strip is cut in a row direction and aligned in the row direction.
- Heat provided with a pressing device comprising: an inter-row slit device for forming a metal strip having a product width; and a first feeding device for feeding the metal strip having a product width formed by the inter-row slit device to the downstream side.
- An apparatus for manufacturing a fin for an exchanger which is formed by a cutting device for cutting each of a plurality of metal strips having a product width formed by the inter-row slit device into a predetermined length, and the inter-row slit device.
- the lower surface of the metal strip of each product width is supported, and the projecting length in the feeding direction of the metal strip of the product width is adjacent to the metal strip of the product width It is characterized by comprising a plurality of receiving portions that are different from each other.
- the receiving portion is disposed at at least one of a delivery position of the inter-row slit device and an entry position to the cutoff device.
- the product width is changed from the inter-row slit device to the cut-off device in such a state that the metal strips of the product width adjacent to each other are separated from each other only by adding the minimum necessary simple configuration. It is possible to send out the metal strip in a state where it is slackened downward.
- the receiving portion starts to sag downward from the metal strip having the product width fed from the inter-row slit device, and below the metal strip having the product width entering the cut-off device. It is preferable that at least one of the restoration positions from the slack is formed to be adjustable.
- the slack state of the metal strip having the product width between the inter-row slit device and the cutoff device can be appropriately adjusted. Therefore, there is no fear of entanglement in the downward slack portion of the metal strip of the product width between the inter-row slit device and the cut-off device, and the product productivity is improved.
- the heat exchanger fins are configured so that the metal strips of the product width that are slackened downward after being fed out from the inter-row slit apparatus are not entangled.
- a manufacturing apparatus can be provided at low cost.
- FIG. 9A is a plan view of a heat exchanger fin.
- FIG. 9B is a side view of the heat exchanger fin.
- FIG. 1 shows the overall configuration of a heat exchanger fin manufacturing apparatus according to the present embodiment.
- An unprocessed metal thin plate 41 such as aluminum is wound around an uncoiler 40 in a coil shape.
- the thin plate 41 pulled out from the uncoiler 40 is inserted into the loop controller 42, and fluttering of the thin plate 41 that is intermittently fed is suppressed by the loop controller 42.
- An NC feeder 44 is provided on the downstream side of the loop controller 42.
- the NC feeder 44 is composed of two rollers that are in contact with the upper surface and the lower surface of the thin plate 41. When the two rollers are driven to rotate, the thin plate 41 is sandwiched between each other to intermittently feed the thin plate 41.
- a press device 47 in which a mold device 46 is disposed is provided on the downstream side of the NC feeder 44.
- the mold apparatus 46 of the present embodiment has an upper die set 46A and a lower die set 46B, and one of the upper die set 46A and the lower die set 46B is provided so as to be movable toward and away from the other. It has been.
- the thin plate 41 is formed into a metal strip 48 having a predetermined shape by the mold device 46.
- the metal strip 48 formed here is shown in FIG.
- the metal strip 48 shown in FIG. 2 is formed by arranging four rows of product groups in the width direction (vertical arrow in FIG. 2) orthogonal to the transport direction (horizontal arrow in FIG. 2). .
- Each product obtained by dividing the metal strip 48 into individual pieces will be described with reference to FIGS. 9A and 9B, and the tube insertion portions 34 into which the flat tubes 32 are inserted are formed at a plurality of locations.
- the plate-shaped part 36 in which the louver 35 was formed is formed between the tube insertion part 34 and the tube insertion part 34.
- cut and raised portions 37 formed by cutting and raising a part of the plate-like portion 36 are formed. Of the two raised portions 37, 37 with respect to one louver 35, the one raised portion 37 is formed on the distal end side of the plate-like portion 36.
- the tube insertion portion 34 is formed only from one side in the width direction of the heat exchanger fin 30. Accordingly, the plurality of plate-like portions 36 between the tube insertion portion 34 and the tube insertion portion 34 are connected by a connection portion 38 extending along the longitudinal direction. Of the two raised portions 37, 37 for the one louver 35, the other raised portion 37 is formed on the connecting portion 38.
- the metal strip 48 shown in FIG. 2 is formed of two sets in which two products are arranged so that the opening sides of the tube insertion portions 34 face each other. That is, a set in which the opening sides of the tube insertion portions 34 of the two products are opposed to each other is arranged so that the connecting portions 38 are adjacent to each other.
- the four products are arranged so as to face each other, the left and right load balance between the mold device 46 and the metal strip 48 is improved.
- the inter-row slit device 52 (described later) that separates each product group. )
- the tube insertion portion 34 is not located at the boundary of the opening portion of the tube insertion portion 34 but to the position where it enters the connecting portion 38 portion. It becomes necessary to slightly widen and cut the opening.
- a step is generated in the cross section, and the left and right load balance of the mold is deteriorated. Therefore, it is preferable to manufacture a plurality of products in the arrangement as shown in FIG.
- the metal strip 48 formed by the mold device 46 in the press device 47 is intermittently fed in the transport direction by the first feeding device 50 provided on the downstream side of the press device 47.
- the feed timing of the first feeding device 50 is provided so as to operate in conjunction with the NC feeder 44, and enables stable intermittent feeding.
- a reciprocating unit 51 that is movable in the horizontal direction reciprocates between an initial position and a transfer position to pull the metal strip 48.
- a feed pin 55 is disposed on the upper surface of the reciprocating unit 51 so as to protrude upward. The feed pin 55 enters the tube insertion portion 34 formed in the metal strip 48 from below, and the feed pin 55 is pulled. As a result, the metal strip 48 moves to the transfer position.
- An inter-row slit device 52 is provided on the downstream side of the first feeding device 50.
- the inter-row slit device 52 includes an upper blade 53 disposed on the upper surface side of the metal strip 48 and a lower blade 54 disposed on the lower surface side of the metal strip 48.
- the inter-row slit device 52 may be provided so as to operate using the vertical movement operation of the press device 47.
- the upper blade 53 and the lower blade 54 are formed long in the conveying direction of the metal strip 48, and the intermittently fed metal strip 48 is cut by the meshed upper blade 53 and lower blade 54, It is formed on a metal strip 49 having a product width, which is an intermediate product that is long in the conveying direction.
- the metal strips 49 having a plurality of product widths cut into the product width by the inter-row slit device 52 are fed into the cut-off device 60.
- a plurality (four in the present embodiment) of the metal strips 49 having the product width are spaced by a predetermined interval (described later). Depending on the structure of the stacking device, it is arranged so as to be open about 5-10 mm.
- the metal strips 49 having a plurality of product widths are stored in a length longer than a single feed length by the cut-off device 60. This is done (see portion A in FIG. 1 and FIG. 3).
- the weight balance in the direction (width direction) orthogonal to the horizontal side in the transport direction is not symmetric with respect to the center line in the transport direction. For this reason, if the product-width metal strip 49 is intermittently fed in a state where the product-width metal strip 49 is slacked downward, the product-width metal strip 49 swings in the slacked portion. Then, there is a possibility that the adjacent metal strips 49 having the product width will be entangled. Therefore, as shown in FIG.
- the receiving portion 56 is disposed at the delivery position of the inter-row slit device 52 (the downstream end position in the conveying direction of the metal strip 49 of the product width), thereby reducing the product width at the slack position. The tangling of the metal strip 49 is prevented.
- the receiving portion 56 in the present embodiment is disposed in a state corresponding to the delivery position of the metal strip 49 having a product width divided into a plurality of pieces by the inter-row slit device 52.
- the receiving portion 56 is rubbed against the conveying surface height position of the metal strip 49 having the product width in the inter-row slit device 52 and protrudes from the inter-row slit device 52 toward the cut-off device 60 side. It is extended like this.
- the product-width metal strip 49 is guided toward the cut-off device 60 in a state where the lower surface of the product-width metal strip 49 fed from the inter-row slit device 52 is supported. can do.
- the receiving portion 56 is formed in a curved shape that protrudes upward.
- the metal strip 49 having the product width does not sag suddenly due to its own weight, and an unintended bent portion is formed in the metal strip 49 having the product width. Can be prevented.
- the receiving portion 56 is preferably detachable from the downstream end position in the direction in which the metal strip 49 having the product width from the inter-row slit device 52 is conveyed.
- an attaching / detaching form an attaching / detaching structure using a fastening means such as a screw or a magnet can be adopted.
- the length of the receiving portion 56 from the inter-row slit device 52 to the tip position of the receiving portion 56 can be adjusted.
- a stretching structure or the like that is used in a fishing rod, tripod, or the like. it can.
- the protruding amounts from the inter-row slit device 52 of the receiving portions 56 corresponding to the second row and the fourth row are made different. More specifically, the metal of the product width of the second row and the fourth row is larger than the protruding amount of the receiving portion 56 corresponding to the metal strip 49 of the product width of the first row and the third row. The amount of protrusion of the receiving portion 56 corresponding to the belt-like body 49 is increased.
- the metal strips 49 having the four product widths sent out from the inter-row slit device 52 have different projection amounts of the receiving portions 56 from the inter-row slit device 52, so that the first row and the third row. In the second row and the fourth row, the state of sagging downward after separating from the inter-row slit device 52 is different.
- the metal strips 49 having the product widths in the second row and the fourth row to which the receiving portions 56 having a large amount of protrusion from the inter-row slit device 52 are attached are downstream of the inter-row slit device 52 in the transport direction. After being transported in the horizontal direction over the required distance along the upper surface of the receiving portion 56 from the end position, it will sag in a substantially U shape downward due to its own weight.
- the metal strips 49 having the product width in the first row and the third row with a small amount of protrusion from the inter-row slit device 52 are the metal strips having the product width in the second row and the fourth row. 49 starts to sag downward at a position closer to the inter-row slit device 52 than the sag starting position of 49 below.
- the product-width metal strips 49 fed from the inter-row slit device 52 have the same length in each row. That is, the lower apex position of the lower slack portion due to the product width metal strip 49 in the second row and the fourth row, and the lower slack portion due to the product width metal strip 49 in the first row and the third row The height is also different from the lower vertex position.
- the metal strip 49 having the product width adjacent in the horizontal direction is horizontally (between the inter-row slit device 52 and the cut-off device 60). It can be in a state of being shifted in the (width) direction and the vertical (height) direction, respectively (see FIG. 4). That is, even within a slight plane range (width range), it is possible to secure a sufficient separation distance between the metal strips 49 having product widths adjacent to each other.
- the metal strips 49 having the respective product widths can be appropriately fed to the cutoff device 60 without the metal strips 49 being entangled with each other.
- a second feeding device 62 that intermittently conveys the metal strip 49 of each product width in the conveying direction.
- the structure of the second feeding device 62 is configured such that one feeding length can be made longer than the structure of the first feeding device 50 provided on the downstream side of the pressing device 47. .
- the second feeding device 62 pulls the metal strip 49 having a product width from the press device 47 side by pushing the transport unit 64 movable in the horizontal direction by a predetermined distance, and pushes it out to the downstream side of the cut-off device 60.
- On the upper surface of the transport unit 64 a plurality of rows of feed pins 65 arranged in the horizontal direction by the number of metal strips 49 having a product width are arranged to protrude upward in a row.
- the feed pin 65 enters the tube insertion portion 34 formed in the metal strip 49 of each product width from below, and the feed pin 65 is pulled to move the metal strip 49 of each product width to the transfer position. be able to.
- a cutting device 66 is provided on the downstream side of the second feeding device 62.
- the cutting device 66 creates the final heat exchanger fins 30 by cutting the metal strips 49 of the respective product widths into predetermined lengths.
- the cutting device 66 has an upper blade 68 disposed on the upper surface side of the metal strip 49 of each product width and a lower blade 69 disposed on the lower surface side of the metal strip 49 of each product width. When the upper blade 68 and the lower blade 69 are closed, the metal strip 49 of each product width is cut into a predetermined length in the conveying direction, and the heat exchanger fin 30 is manufactured.
- a plurality of manufactured heat exchanger fins 30 are stacked and stacked on the stacking device 80.
- An example of a stack of heat exchanger fins will be described.
- the heat exchanger fins 30 cut to a predetermined size by the cut-off device 60 are held by the holding device 70 that continues the holding state.
- Below the holding device 70 there is provided a stack device 80 for laminating the heat exchanger fins 30 cut to a predetermined length by the cut-off device 60.
- the holding device 70 is arranged in the conveying direction of the metal strip 49 having the product width between the lateral position of the metal strip 49 having the product width and the holding position of the metal strip having the product width.
- a pair of holding bodies (not shown) are provided so as to be movable toward and away from each other in a horizontal direction perpendicular to the vertical direction.
- the stack device 80 is provided at a lower end of the stack pin 81 and a plurality of stack pins 81 erected so as to be inserted from below into the tube insertion portion 34 of the heat exchanger fin 30 held by the holding device 70.
- a pedestal 82 is provided.
- the pedestal 82 is provided with a vertical movement device 83 for moving the pedestal 82 in the vertical direction (height direction).
- a motor drive device is preferably used.
- the stack device 80 is not limited to the configuration described above, and a magazine-like stack device 80 may be adopted as another configuration example.
- the heat exchanger fin manufacturing apparatus 100 includes a control unit 90 having a CPU and a storage unit (both not shown).
- the storage unit of the control unit 90 stores in advance an operation control program for performing operation control of each component constituting the heat exchanger fin manufacturing apparatus, and the CPU reads the operation control program from the storage unit, and controls the operation. Control the operation of each component according to the program.
- the CPU reads the operation control program from the storage unit, and controls the operation. Control the operation of each component according to the program.
- FIG. 5 is a principal part side view of the manufacturing measure of the fin for heat exchangers concerning 2nd Embodiment.
- FIG. 6 is an enlarged explanatory view of the receiving portion 56 shown in FIG.
- the receiving portion 56 is disposed at the downstream end position in the transport direction of the inter-row slit device 52, and the first position is the entrance position of the cut-off device 60 (upstream end position in the transport direction).
- a characteristic is that two receiving portions 61 are provided.
- the receiving portion 56 disposed on the inter-row slit device 52 side includes a base 56A, a first arm 56B, a second arm 56C, a connecting plate 56D, and a rotating body 56E. is doing.
- the first arm 56B, the second arm 56C, and the connecting plate 56D are rotatable around the axis a via the axis a.
- the rotator 56E supports the lower surface of the metal strip 49 having a product width, and extends in the depth direction of the sheet of FIG.
- the rotation value 56E is sandwiched between the first arm 56B and the second arm 56C so as to be rotatable around the axis a at both ends in the longitudinal direction.
- the second arm 56C is used, but the third and subsequent arms can be similarly connected so as to be rotatable.
- the first arm 56B, the second arm C, and the connecting plate 56D are inserted in a circular arc-shaped long hole h, and the pin p is guided along the long hole h. It is formed to be rotatable around the axis a.
- the connecting plate 56D is formed so that the first arm 56B and the second arm 56C can be fixed at an arbitrary bending angle.
- positioned in the approach position (upstream end position in a conveyance direction) of the cutoff apparatus 60 can employ
- the product width metal strips 49 adjacent to each other in the column direction can be separated from each other by changing the angle at which the product width metal strips 49 are taken into the cutoff device 60 as well.
- the tangling of the metal strips 49 having the product width adjacent to each other in the column direction in the slack portion below the metal strips 49 can be more reliably prevented.
- FIG. 5 shows the sag start position in the slack shape (loop shape) of the metal strip 49 of the product width on the side of the inter-slit device 52 by varying the protruding length of the receiving portion 56 from the inter-row slit device 52.
- ⁇ L0 can be made different in the conveying direction of the metal strip 49 having the product width.
- the entry start position into the cut-off device 60 (recovery from the state in which the product width of the metal strip 49 is slacked downward) Position) can be made to differ by ⁇ L1 in the conveying direction of the metal strip 49 having the product width.
- the metal strip 49 having the product width sent out from the inter-row slit device 52 has the same length regardless of whether or not the receiving portion 56 and the second receiving portion 61 are mounted. Therefore, the sag apex height position can be made different by changing the sag start position of the metal strip 49 having the product width downward and the restoration position from the sag state. As shown in FIG. 5, the apex height position can be made different by ⁇ h0 at the lower end portion (loop lower end position) of the portion where the metal band 49 having the product width is slackened, and the metal band 49 having the product width is slapped. At the upper end portion (loop upper end position) of the bent portion, the apex height position can be made different by ⁇ h1.
- the metal strip 49 having the product width is in the entire range.
- the adjacent metal strips 49 having the product width can be reliably separated. This is advantageous in that even if the adjacent metal strips 49 having the product width are intermittently fed and oscillated, the entanglement between the metal strips 49 having the product width can be more reliably prevented.
- the present invention has been described above with reference to a preferred embodiment, the present invention is not limited to this embodiment, and it goes without saying that many modifications can be made without departing from the spirit of the invention. .
- the receiving portion 56 is attached to the inter-row slit device 52
- the receiving portion 56 is connected to the inter-row slit device 52 and the cut-off device 60 is connected to the second.
- the embodiments in which the receiving portions 61 are disposed have been described, the present invention is not limited to these embodiments.
- the receiving portion 56 is described as extending from the downstream end position in the conveying direction of the metal strip 49 having the product width in the inter-row slit device 52 toward the cutoff device 60.
- the receiving portion 56 is extended from the downstream end position in the conveyance direction of the metal strip 49 having the product width in the inter-row slit device 52 in a direction in which the height position is gradually increased toward the cutoff device 60.
- the receiving portion 56 may be configured to be independent at a position between the inter-row slit device 52 and the cut-off device 60.
- the receiving portion 56 includes a pedestal 56x, a support 56y that stands up from the pedestal 56x, and a moving body 56z to which a material receiver 56w whose height position can be adjusted along the support 56y is attached. It is preferable to have. This is because by adjusting the fixed position of the movable body 56z in the height direction of the support column 56y, the state of the product width of the metal strip 49 can be appropriately changed.
- the material receiver 56w may be rotatable in the arrow Z direction in FIG. Furthermore, you may employ
- the receiving portion 56 shown in FIG. 7 it is not necessary to dispose all the metal strips 49 of the product width sent out from the inter-row slit device 52, but sent out from the inter-row slit device 52. It is also possible to arrange every other row with respect to the metal strip 49 having a product width.
- the metal strip 49 having the product width is suspended from the inter-row slit device 52 immediately in the suspended state, it is guaranteed that the metal strip 49 will not be broken by its own weight, as described in the first and second embodiments. It is also possible to adopt a form in which the portions 56 are arranged in every other row with respect to the metal strip 49 having the product width sent out from the inter-row slit device 52.
- the heat exchanger fin 30 manufactured by the heat exchanger fin manufacturing apparatus 100 according to the present invention is in the form of a so-called flat tube heat radiating fin obtained by dividing the metal strip 48 shown in FIG. It is not limited,
- the fin 30 for heat exchangers of what is called a round tube type which has a form symmetrical to the centerline of a longitudinal direction (conveyance direction) can also be manufactured.
- a heat exchanger fin manufacturing apparatus 100 in which all the configurations described above are appropriately combined may be employed.
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Abstract
Description
かかる熱交換器用フィンは、図8に示すような熱交換器用フィンの製造装置1によって製造することができる(特許文献1参照)。
熱交換器用フィンの製造装置1には、アルミニウム等の金属製の薄板10がコイル状に巻かれたアンコイラー12が設けられている。アンコイラー12からピンチロール14を経て引き出された薄板10は、オイル付与装置16に挿入され、薄板10の表面に加工用オイルを付着させた後、プレス装置18内に設けられた金型装置20に供給される。 Conventional heat exchangers such as coolers are generally configured by laminating a plurality of heat exchanger fins each having a plurality of through holes into which heat exchange tubes are inserted.
Such heat exchanger fins can be manufactured by a heat exchanger fin manufacturing apparatus 1 as shown in FIG. 8 (see Patent Document 1).
The heat exchanger fin manufacturing apparatus 1 is provided with an
しかしながら現在、多穴の扁平チューブを用いた熱交換器が流通している。この扁平チューブを用いた熱交換器用フィンを図9Aおよび図9Bに示す。 The conventional
However, currently, heat exchangers using multi-hole flat tubes are in circulation. A heat exchanger fin using this flat tube is shown in FIGS. 9A and 9B.
チューブ挿入部34は、熱交換器用フィン30の幅方向の一方側からのみ形成されている。したがって、チューブ挿入部34とチューブ挿入部34との間の複数の板状部36は、長手方向に沿って伸びる連結部38によって連結されている。なお、切り起し部37は、熱交換器用フィン30を積層させる際において、上下の熱交換器用フィン30,30に隙間を形成するためのものである。 In the
The
このため、列間スリット装置とカットオフ装置との間では、カットオフ装置による1回の送り長さよりも長い長さを一時的に溜めるため、製品幅の金属帯状体を下方にたるませておくことがある。 By the way, in a manufacturing apparatus for manufacturing heat exchanger fins, in a cut-off device that forms a heat exchanger fin as a product by cutting a metal strip having a product width into a predetermined length, the length of the product is arbitrarily changed. As can be done, the feed length of one cut-off can be made longer than the feed length of one time (one mold closing) of the metal strip having the product width in the inter-row slit device.
For this reason, between the inter-row slit device and the cut-off device, in order to temporarily accumulate a length longer than a single feed length by the cut-off device, the metal strip having the product width is slacked downward. Sometimes.
このような高価な制御部を採用せずに製品幅の金属帯状体の絡みを防止すべく、製品幅の金属帯状体どうしを離反させようとすると、熱交換器用フィンの製造装置が大型になってしまい、工場の単位面積当たりにおける熱交換器用フィンの製造量が低下してしまい、熱交換器用フィンの製造コストの低減が阻害されるといった課題もある。 However, the configuration of the control unit disclosed in Patent Document 2 may have complicated control contents, and the heat exchanger fin manufacturing apparatus employing such a control unit has a problem that the provision cost is expensive. is there.
If the product width metal strips are separated from each other in order to prevent the product width metal strips from becoming entangled without using such an expensive control unit, the heat exchanger fin manufacturing apparatus becomes large. As a result, the production amount of the heat exchanger fins per unit area of the factory is reduced, and there is a problem that reduction of the production cost of the heat exchanger fins is hindered.
すなわち、本発明は、複数の透孔又は複数の切り欠き部を有する金属帯状体を形成する金型装置と、該金属帯状体を列方向に切断し、当該列方向に複数本整列してなる製品幅の金属帯状体を形成する列間スリット装置と、前記列間スリット装置によって形成された製品幅の金属帯状体を下流側に送る第1送り装置と、を備えたプレス装置を具備する熱交換器用フィンの製造装置であって、前記列間スリット装置によって形成された複数本の製品幅の金属帯状体のそれぞれを所定長さに切断する切断装置と、前記列間スリット装置によって形成された複数本の製品幅の金属帯状体のそれぞれを前記切断装置へ送り込む第2送り装置と、を有するカットオフ装置を具備し、前記列間スリット装置から出た複数本の製品幅の金属帯状体は、下方にたるませた状態を経てから前記カットオフ装置に進入するように設けられ、前記列間スリット装置の送り出し位置と、前記カットオフ装置への進入位置との間には、隣接する製品幅の金属帯状体のたるみ開始位置又はたるみ終了位置を異ならせるために、それぞれの製品幅の金属帯状体の下面を支持し、製品幅の金属帯状体の送り方向における突出長さが隣接する製品幅の金属帯状体の間で異なる複数の受け部を具備することを特徴とする。 As a result of diligent research to solve the above problems, the applicant has come up with a configuration that can solve the problems.
That is, the present invention comprises a mold apparatus for forming a metal strip having a plurality of through holes or a plurality of notches, and the metal strip is cut in a row direction and aligned in the row direction. Heat provided with a pressing device comprising: an inter-row slit device for forming a metal strip having a product width; and a first feeding device for feeding the metal strip having a product width formed by the inter-row slit device to the downstream side. An apparatus for manufacturing a fin for an exchanger, which is formed by a cutting device for cutting each of a plurality of metal strips having a product width formed by the inter-row slit device into a predetermined length, and the inter-row slit device. A plurality of product-width metal strips, each having a cut-off device having a second feeding device that feeds each of the product-width metal strips to the cutting device. Down A metal strip having an adjacent product width between the feed position of the inter-row slit device and the entry position to the cut-off device. In order to make the sagging start position or sagging end position different, the lower surface of the metal strip of each product width is supported, and the projecting length in the feeding direction of the metal strip of the product width is adjacent to the metal strip of the product width It is characterized by comprising a plurality of receiving portions that are different from each other.
本実施形態にかかる熱交換器用フィンの製造装置の全体構成を図1に示す。
アルミニウム等の未加工の金属製の薄板41は、アンコイラー40にコイル状に巻回されている。アンコイラー40から引き出された薄板41は、ループコントローラ42内に挿入され、間欠送りされる薄板41のばたつきがループコントローラ42によって抑えられる。 (First embodiment)
FIG. 1 shows the overall configuration of a heat exchanger fin manufacturing apparatus according to the present embodiment.
An unprocessed metal
NCフィーダ44の下流側には、金型装置46が内部に配置されたプレス装置47が設けられている。本実施形態の金型装置46は、上型ダイセット46Aと下型ダイセット46Bとを有し、上型ダイセット46Aまたは下型ダイセット46Bの一方が他方に対して接離動可能に設けられている。プレス装置47において、薄板41が金型装置46によって所定の形状の金属帯状体48に形成される。 An
On the downstream side of the
図2に示す金属帯状体48は、搬送方向(図2内の横方向の矢印)に直交する幅方向(図2内の縦方向の矢印)に4列の製品群が並んで形成されている。金属帯状体48を個片化して得られる各々の製品については、図9Aおよび図9Bを参照して説明するが、扁平チューブ32が挿入されるチューブ挿入部34が複数箇所に形成されており、チューブ挿入部34とチューブ挿入部34との間は、ルーバー35が形成された板状部36が形成されている。また、ルーバー35の幅方向の両端部側には、板状部36の一部が切り起こされて形成された切り起し部37が形成されている。1つのルーバー35に対する2つの切り起し部37,37のうち、一方側の切り起し部37は、板状部36の先端部側に形成されている。 The
The
上記の1つのルーバー35に対する2つの切り起し部37,37のうち、他方側の切り起し部37は、この連結部38上に形成されている。 The
Of the two raised
このように、4つの製品を相対するように配置することによって、金型装置46および金属帯状体48の左右の荷重バランスが良くなる。 The
Thus, by arranging the four products so as to face each other, the left and right load balance between the
プレス装置47内の金型装置46で形成された金属帯状体48は、プレス装置47の下流側に設けられている第1送り装置50によって間欠的に搬送方向に送られる。第1送り装置50の送りタイミングは、NCフィーダ44と連動して動作するように設けられており、安定した間欠送りを可能とする。 Returning to the description of the overall configuration of the manufacturing apparatus.
The
上刃53及び下刃54は、金属帯状体48の搬送方向に長尺に形成されており、間欠送りされる金属帯状体48を、噛み合わせた上刃53と下刃54とで切断し、搬送方向に長い製品の中間体である製品幅の金属帯状体49に形成する。 An
The
なお、カットオフ装置60に送り込まれる前に、複数本(本実施形態では4本)の製品幅の金属帯状体49は、隣り合う製品幅の金属帯状体49どうしの間を所定間隔(後述するスタック装置の構造にもよるが、5~10mm程度)あけるように配置される。また、カットオフ装置60に送り込まれる前には、複数本の製品幅の金属帯状体49は、カットオフ装置60による1回の送り長さよりも長い長さを一時的に溜めるため、下方にたるませるようにしている(図1中のA部分および図3参照)。 The metal strips 49 having a plurality of product widths cut into the product width by the
In addition, before being sent to the cut-off
第2送り装置62は、水平方向に移動可能な搬送ユニット64が、所定距離移動することにより製品幅の金属帯状体49をプレス装置47側から牽引し、カットオフ装置60の下流側に押し出す。搬送ユニット64の上面には、製品幅の金属帯状体49の数だけ水平方向に並んだ複数列の送りピン65が列状に上方に突出して配置されている。送りピン65が各製品幅の金属帯状体49に形成されたチューブ挿入部34内に下方から進入し、送りピン65が牽引することでそれぞれの製品幅の金属帯状体49を移送位置まで移動させることができる。 In the cut-off
The
切断装置66は、それぞれの製品幅の金属帯状体49を所定長さに切断することにより、最終的な熱交換器用フィン30を作成するものである。切断装置66は、各製品幅の金属帯状体49の上面側に配置された上刃68と、各製品幅の金属帯状体49の下面側に配置された下刃69とを有する。
上刃68と下刃69とが型閉じすることによって、各製品幅の金属帯状体49が搬送方向において所定長さ寸法に切断され、熱交換器用フィン30が製造される。 A cutting
The cutting
When the
熱交換器用フィンのスタックの一例について説明する。カットオフ装置60により所定寸法に切断された熱交換器用フィン30は、保持状態を継続する保持装置70に保持される。保持装置70の下方には、カットオフ装置60により所定長さに切断された熱交換器用フィン30を積層させるためのスタック装置80が設けられている。 A plurality of manufactured
An example of a stack of heat exchanger fins will be described. The
スタック装置80は、保持装置70により保持されている熱交換器用フィン30のチューブ挿入部34に下方から挿通可能に立設された複数本のスタックピン81と、スタックピン81の下端に設けられた台座82を有している。台座82には台座82を上下方向(高さ方向)に移動させるための上下動装置83が設けられている。上下動装置83としてはモータ駆動装置が好適に用いられる。スタック装置80は以上に説明した構成に限定されるものではなく、他の構成例としてはマガジン状のスタック装置80を採用することもできる。 The holding
The
図5は第2実施形態にかかる熱交換器用フィンの製造措置の要部側面図である。図6は、図5に示す受け部56の拡大説明図である。本実施形態においては、図5に示すように列間スリット装置52の搬送方向における下流端位置に受け部56を配設し、カットオフ装置60の進入位置(搬送方向における上流端位置)に第2の受け部61が配設されている点が特徴的である。 (Second Embodiment)
FIG. 5: is a principal part side view of the manufacturing measure of the fin for heat exchangers concerning 2nd Embodiment. FIG. 6 is an enlarged explanatory view of the receiving
第2の受け部61は、カットオフ装置60の進入位置に対する取り付け角度が調整可能であるため、製品幅の金属帯状体49のカットオフ装置60への取り込み角度(製品幅の金属帯状体48の下方へのたるみ状態からの復元位置)を適宜調整することができる。図5に示すようにカットオフ装置60への製品幅の金属帯状体49の取り込み角度を変更することでも、列方向に隣接する製品幅の金属帯状体49どうしを離反させることができ、製品幅の金属帯状体49の下方へのたるみ部分における列方向に隣接する製品幅の金属帯状体49どうしの絡みをより確実に防止することができる。 Since the 2nd receiving
Since the mounting angle of the second receiving
具体的には、受け部56を列間スリット装置52における製品幅の金属帯状体49の搬送方向における下流端位置からカットオフ装置60に向って徐々に高さ位置を増やす方向に延設することもできる。この形態によれば、受け部56が配設されていない第1列目と第3列目の製品幅の金属帯状体49に対する第2列目と第4列目の製品幅の金属帯状体49の離間距離をさらに増加させることができる点で好都合である。 In the present embodiment, the receiving
Specifically, the receiving
要は、列間スリット装置52から送り出された製品幅の金属帯状体49が列間スリット装置52とカットオフ装置60との間で、下方にたるんだ状態を経た後にカットオフ装置60に進入する際において、互いに隣接する製品幅の金属帯状体49どうしのたるみ形状を異ならせることができればよいのである。 Further, the
The point is that the
さらには、以上に説明したすべての構成を適宜組み合わせた熱交換器用フィンの製造装置100を採用することもできる。 Further, the
Furthermore, a heat exchanger
Claims (3)
- 複数の透孔又は複数の切り欠き部を有する金属帯状体を形成する金型装置と、該金属帯状体を列方向に切断し、当該列方向に複数本整列してなる製品幅の金属帯状体を形成する列間スリット装置と、前記列間スリット装置によって形成された製品幅の金属帯状体を下流側に送る第1送り装置と、を備えたプレス装置を具備する熱交換器用フィンの製造装置であって、
前記列間スリット装置によって形成された複数本の製品幅の金属帯状体のそれぞれを所定長さに切断する切断装置と、
前記列間スリット装置によって形成された複数本の製品幅の金属帯状体のそれぞれを前記切断装置へ送り込む第2送り装置と、を有するカットオフ装置を具備し、
前記列間スリット装置から出た複数本の製品幅の金属帯状体は、下方にたるませた状態を経てから前記カットオフ装置に進入するように設けられ、
前記列間スリット装置の送り出し位置と、前記カットオフ装置への進入位置との間には、隣接する製品幅の金属帯状体のたるみ開始位置又はたるみ終了位置を異ならせるために、それぞれの製品幅の金属帯状体の下面を支持し、製品幅の金属帯状体の送り方向における突出長さが隣接する製品幅の金属帯状体の間で異なる複数の受け部を具備することを特徴とする熱交換器用フィンの製造装置。 A mold apparatus for forming a metal strip having a plurality of through holes or a plurality of notches, and a metal strip having a product width obtained by cutting the metal strip in the column direction and aligning a plurality of the strips in the column direction The apparatus for producing fins for heat exchangers, comprising: a press device provided with a slitting device that forms a metal strip; and a first feeding device that sends a metal strip having a product width formed by the slitting device to the downstream side. Because
A cutting device for cutting each of the metal strips having a plurality of product widths formed by the inter-row slit device into a predetermined length;
A second feeding device that feeds each of the metal strips having a plurality of product widths formed by the inter-row slit device to the cutting device, and includes a cutoff device,
The metal strips having a plurality of product widths coming out of the inter-row slit device are provided so as to enter the cut-off device after passing through a state of being slackened downward,
In order to make the slack start position or slack end position of the metal strip of the adjacent product width different between the feed position of the inter-row slit device and the entry position to the cut-off device, each product width A heat exchange comprising a plurality of receiving portions that support the lower surface of the metal strip and have different projecting lengths in the feeding direction of the product-width metal strip between adjacent metal-width strips of the product width Machine fin manufacturing equipment. - 前記受け部は、前記列間スリット装置の送り出し位置、および、前記カットオフ装置への進入位置のうちの少なくとも一方に配設されていることを特徴とする請求項1記載の熱交換器用フィンの製造装置。 2. The fin for a heat exchanger according to claim 1, wherein the receiving portion is disposed at at least one of a delivery position of the inter-row slit device and an entry position to the cut-off device. Manufacturing equipment.
- 前記受け部は、前記列間スリット装置から送り出された製品幅の金属帯状体の下方へのたるみ開始位置、および、前記カットオフ装置に進入する製品幅の金属帯状体の下方へのたるみからの復元位置のうちの少なくとも一方が調整可能に形成されていることを特徴とする請求項1または2に記載の熱交換器用フィンの製造装置。 The receiving part is a position where the product width metal strip fed from the inter-row slit device starts to sag downward, and the product width of the product width entering the cut-off device from the sag downward. The heat exchanger fin manufacturing apparatus according to claim 1, wherein at least one of the restoring positions is formed to be adjustable.
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