JP7442856B1 - Fin accumulator for flat tubes - Google Patents

Abstract

[Problem] To provide a fin stacking device for flat tubes, which is capable of taking out a stack of fins for flat tubes without stopping a press device, and which can omit changing the posture of the stack when inserting flat tubes into the stack. To do. A plurality of fin holders 92 arranged perpendicularly to the length direction of a flat tube fin 200 and arranged directly below a notch 210, a fin transfer plate 93 extending from below to above the fin holder 92, A plurality of fin transfer mechanisms 96 including a transfer plate holder 94 and a plate holder moving drive unit 95 for moving the transfer plate holder 94 in the extension direction and height direction of the fin holder 92 are arranged at required intervals. The fin transfer mechanism 96 is characterized in that after the flat tube fins 200 are suspended from the fin holder 92, the flat tube fins 200 are accumulated in a temporary accumulation section 97 set in advance on the fin holder 92. This is a fin accumulation device 90 for flat tubes. [Selection diagram] Figure 18

Description

The present invention relates to a fin accumulation device for flat tubes, and more particularly to a fin accumulation device for flat tubes that horizontally accumulates fins for flat tubes each having a notch into which a flat tube for a heat exchanger is inserted.

A heat exchanger in an air conditioner or the like is formed by inserting a plurality of heat radiating fins into a refrigerant pipe for circulating refrigerant. Among such heat exchangers, there are those in which the refrigerant tubes are formed flat, and such flat tubes use flat tube fins in which notches are formed in the width direction of the fins. A flat tube is inserted into the tube. Such a flat tube fin accumulation device (stack device) has a structure disclosed in Patent Document 1 (Patent No. 7006994), in which flat tube fins are accumulated (stacked) in the thickness direction. There is. However, when inserting a flat tube, which is a refrigerant pipe, into the accumulated flat tube fins, as in the embodiment of Patent Document 2 (Japanese Patent No. 7037207), it is necessary to must be set horizontally.

Patent No. 7006994 (specification paragraphs 0048-0049, Figure 5, etc.) Patent No. 7037207 (specification paragraph 0005,0041, Figures 15-18, etc.)

After the flat tube fins are pressed by a press device, they are conveyed to a conveyance device, and transferred from the conveyance device to an accumulation device by the action of gravity. That is, the flat tube fins are integrated in the thickness direction (height direction). Once a predetermined number of flat tube fins have been stacked on the stacking device, the press device must be temporarily stopped and the stack and stacking device must be replaced with an empty stacking device. There is a problem in that the manufacturing stop time of the flat tube fins becomes long due to removal. In addition, when inserting a flat tube into the stacked flat tube fins (stack), it is necessary to change the orientation of the stack stacked in the height direction to the horizontal direction, which is time-consuming. There are issues such as:

Therefore, the present invention has been made to solve the above problems, and its objectives are as follows. That is, it is possible to take out the stack of flat tube fins without temporarily stopping the press device, and it is possible to omit changing the posture of the stack when inserting the flat tube into the stack.

As a result of the inventor's intensive research to solve the above problems, he came up with the following configuration. That is, in the present invention, after a product-width metal strip is pressed by a press device and has a notch into which a flat tube for a heat exchanger is inserted, the product-width metal strip is conveyed along a conveyance device. A fin accumulation device for flat tubes that accumulates fins for flat tubes cut to length after being dropped from the conveyance device, the device being arranged perpendicularly to the conveyance direction of the conveyance device in a horizontal direction and having the notch. A plurality of fin holders are arranged directly under the flat tube fin along the length direction of the flat tube fin, and the upstream side and the downstream side of the fin holder in the length direction of the flat tube fin. a fin transfer plate that extends from the lower side of the fin holder to the upper side along the fin holder; a transfer plate holder that holds the fin transfer plate; A plurality of fin transfer mechanisms each having a plate holder moving drive unit for moving the flat tube fins are arranged at required intervals in the length direction of the flat tube fins, and the fin transfer mechanisms are configured to move the flat tube fins. The flat tube fin accumulation device is characterized in that, after the flat tube fins are suspended from the fin holder, the flat tube fins are temporarily accumulated at a plurality of preset locations within the fin holder.

As a result, it is possible to take out the flat tube fin stack without temporarily stopping the press device, and it is possible to omit changing the posture of the flat tube fin when inserting the flat tube into the stack. Become.

Further, the product-width metal strips are grouped into transport groups each containing a plurality of metal strips, and the fin transfer mechanism is configured to transport each of the flat tubes after the flat tube fins are suspended from the fin holder. It is preferable that the use fins are temporarily accumulated at a predetermined location outside the transport group in the width direction.

Thereby, the moving distance of the flat tube fins when the flat tube fins are temporarily accumulated can be reduced, and the manufacturing efficiency of the flat tube fins can be improved.

Further, when the number of flat tube fins temporarily accumulated at the most downstream location of the fin holder exceeds a preset number, the flat tube fins accumulated at the most downstream location are carried out to the outside. It is preferable to further include a fin delivery body.

Thereby, the stack of flat tube fins can be sequentially discharged to the outside of the flat tube fin stacking device from the most downstream position.

Moreover, each of the flat tube fins is placed at a position where the flat tube fins are in contact with the upper end of each of the flat tube fins suspended from the fin holder or at a position where there is a gap between the upper end of each of the flat tube fins. It is preferable that the fin guide further includes a fin guide body that covers the upper surface and moves along the fin holder together with the fin transfer plate.

As a result, when sliding the flat tube fins and the flat tube fin assembly along the fin holder, any one of the flat tube fins can prevent deviation from the fin holder, such as lifting up from the fin holder. It can be prevented.

Further, it is possible to move up and down from a position above the conveyance device to a position where it penetrates the notch of the product-width metal strip held by the conveyance device and abuts or faces the upper end surface of the fin holder. It is preferable to further include a falling guide body. Further, the falling guide body is located at a position where it penetrates the notch and abuts or faces the upper end surface of the fin holder before cutting the product width metal strip fed into the conveying device into a product length. It is more preferable that the flat tube fin, in which the product-width metal strip is cut to the product length, falls into the fin holder and then returns to the upper position of the transport device.

With these, the flat tube fins can be reliably accumulated from the conveyance device to the flat tube fin accumulation device.

By adopting the configuration of the flat tube fin accumulation device of the present invention, it is possible to take out the flat tube fin accumulation without temporarily stopping the press device, and insert the flat tube into the accumulation. This makes it possible to omit changing the posture of the stack at the time of use.

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which shows the schematic structure of the fin manufacturing apparatus for flat tubes in 1st Embodiment. FIG. 2 is a plan view of a main part of a metal strip according to the first embodiment. FIG. 2 is a plan view of a product-width metal strip according to the first embodiment. It is a right view of the conveyance device in a 1st embodiment. FIG. 2 is a right side view (viewed from arrow V in FIG. 1) of the conveyance device and the flat tube fin accumulation device in the first embodiment. FIG. 6 is a plan view of the flat tube fin accumulation device viewed from arrow VI in FIG. 5; FIG. 2 is a rear view of the flat tube fin accumulation device in the first embodiment. FIG. 3 is an explanatory diagram of the main part of the transport device. FIG. 9 is an explanatory diagram of the main part operation of the conveying device following FIG. 8; FIG. 10 is an explanatory diagram of the operation of the main parts of the conveying device following FIG. 9; It is an explanatory view showing the state where the fin for flat tubes was moved from the conveyance device to the fin holder. 8 is a right side view of the flat tube fin accumulation device corresponding to the state shown in FIG. 7. FIG. FIG. 13 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 12; FIG. 14 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 13; 15 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 14. FIG. 16 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 15. FIG. FIG. 17 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 16; FIG. 18 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 17; FIG. 19 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 18; FIG. 20 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 19; It is a right view of the fin accumulation device for flat tubes in 2nd Embodiment. FIG. 22 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 21; 23 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 22. FIG. FIG. 24 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 23 . 25 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 24. FIG. 26 is a right side view illustrating the operation of the flat tube fin accumulation device following FIG. 25. FIG.

EMBODIMENT OF THE INVENTION Hereinafter, the embodiment of the fin manufacturing apparatus 100 for flat tubes containing the fin accumulation apparatus 90 for flat tubes according to the present invention will be specifically described based on the drawings.

(First embodiment)
As shown in FIG. 1, the flat tube fin manufacturing apparatus 100 in this embodiment includes a material supply section 10, a press device 20, a feeding mechanism 30, an inter-row slitting device 40, a loop supporter 50, an integrated feeding device 60, and a cut-off device. It is equipped with a device 70, a conveyance device 80, a flat tube fin accumulation device 90, and an operation control section 101. The assembly of flat tube fins 200 (flat tube fin assembly 300) manufactured by the flat tube fin manufacturing apparatus 100 is discharged to a downstream process represented by the core assembly apparatus 400.

The material supply section 10 includes an uncoiler 12, a loop controller 14, and an NC feeder 16. A thin metal plate 11 typified by aluminum alloy, which is the material of the flat tube fin 200 for a heat exchanger, is wound into a coil around an uncoiler 12 . The thin plate 11 pulled out from the uncoiler 12 is inserted into the loop controller 14, and the flapping of the thin plate 11 that is intermittently fed is suppressed. An NC feeder 16 is arranged downstream of the loop controller 14. The NC feeder 16 has two rollers that contact the upper and lower surfaces of the thin plate 11, and when these rollers are driven to rotate, they sandwich the thin plate 11 in the thickness direction and feed it intermittently to the press device 20. There is. The NC feeder 16 controls the operation control unit 101 to control the upper die and the lower die after the upper die and the lower die (neither of which are shown) in the mold device 22 of the press device 20 start separating from the contact state. The operation is controlled so that the thin plate 11 is delivered to the press device 20 until it comes into contact with the press device 20.

The press device 20 in this embodiment has a built-in mold device 22 consisting of an upper mold and a lower mold. At least one of the upper mold and the lower mold is attached to a mold drive unit (not shown), and is movable towards and away from the other. The thin plate 11 is pressed by a mold device 22 and formed into a metal strip 201 having a predetermined shape as shown in FIG. Note that FIG. 2 shows a partial range of the metal strip 201 in the length direction and width direction. As shown in FIG. 3, a product-width metal strip 202 obtained by dividing the metal strip 201 into product widths has multiple cutouts 210 into which flat tubes (not shown) are inserted. A plate-like portion 230 having a louver 220 is formed between the notches 210 . Furthermore, openings 240 are formed by cutting and raising the thin plate 11 at both ends of the louver 220 in the width direction. Of the two openings 240 for one louver 220, one opening 240 is formed on the tip end side of the plate-shaped portion 230. Note that gaps are formed between adjacent flat tube fins 200 in the stacking direction when the flat tube fins 200 are stacked in the flat tube fin stacking device 90 at both ends in the width direction of the opening 240 in the drawing. A cut-out portion is formed for this purpose.

The notch 210 is formed from one widthwise side of the flat tube fin 200 to the other side, and is open only on one widthwise side. The plurality of plate-shaped parts 230 between the notch parts 210 are connected by a connecting part 250 that extends continuously along the longitudinal direction (conveyance direction). Note that the remaining one of the two openings 240 is formed in this connecting portion 250. In the metal strip 201 in this embodiment, 24 product-width metal strips 202 are integrally formed in the same direction in the width direction.

The metal strip 201 formed by the press device 20 is intermittently fed in the conveyance direction by a feed mechanism 30 disposed adjacent to the downstream side of the press device 20 . The feed mechanism 30 employs a so-called hitch feed mechanism, and is controlled by an operation control unit 101 so that a reciprocating unit 32 that reciprocates along the conveyance direction operates in conjunction with the NC feeder 16. Specifically, the reciprocating unit 32 returns to the initial position after the upper mold and lower mold in the mold device 22 of the press device 20 start separating from the contact state until the upper mold and the lower mold contact. The operation is controlled to make one reciprocation between the feed position and the feed position. On the upper surface of the reciprocating unit 32, a feed pin 34 is provided upright, which enters the notch 210 or opening 240 of the metal strip 201 from the bottom side of the metal strip 201. The tip of the feed pin 34 is formed into an inclined surface (not shown) whose height gradually decreases from the downstream side to the upstream side in the conveying direction, and the tip portion is formed into an inclined surface (not shown) whose height gradually decreases from the downstream side to the upstream side in the conveying direction. It is biased by a biasing member (not shown).

When the metal strip 201 is sent out from the press device 20 while the reciprocating unit 32 is in the initial position, the feed pin 34 enters the notch 210 or opening 240 of the metal strip 201 by a known mechanism. Then, as the reciprocating unit 32 moves to the delivery position on the downstream side in the conveyance direction, the metal strip 201 is pulled by the sending pin 34 to the delivery position. When the reciprocating unit 32 returns to the initial position on the upstream side in the conveyance direction, the reciprocating unit 32 can be returned to the initial position while the feed pin 34 is retracted from the notch 210 or the opening 240 by a known mechanism. can.

An inter-row slit device 40 is disposed downstream of the feed mechanism 30 in this embodiment. The inter-row slitting device 40 has a cutting blade 42 consisting of an upper blade and a lower blade arranged along the conveyance direction on the upper surface side of the metal strip 201, and a link portion (not shown). The cutting blades 42 are disposed at positions (in this case, 23 locations in the width direction of the metal strip 201) to separate the product width metal strip 202 formed on the metal strip 201 into pieces. The link portion is for moving the cutting blade 42 toward and away from the press device 20 at a required timing using the approaching and separating motion of the press device 20 as a power source. In this embodiment, the movement is converted by the link portion so that the movement of the cutting blade 42 toward and away from the blade 42 is in the same phase as the movement between the upper mold and the lower mold in the mold device 22. Further, the cutting blade 42 may be moved toward and away from the cutting blade by a cutting blade drive mechanism (not shown). In this case, the operation of the upper and lower blade drive mechanisms can be controlled by the operation control section 101. The metal strip 201 fed into the inter-row slitting device 40 by the feeding mechanism 30 is cut into pieces by the cutting blade 42 into metal strips 202 having the same product width as the product width of the flat tube fin 200.

The product width metal strips 202 separated from the metal strips 201 by the inter-row slitting device 40 have their deflection adjusted by the loop supports 50 disposed downstream of the inter-row slitting device 40, and are transported. It is conveyed so that the downstream side in the direction spreads out toward the end. The loop supporter 50 supports the bottom surface of the product-width metal strip 202 and guides it in the conveyance direction. Here, the amount of deflection of the product width metal strip 202 divided at the center portion in the width direction of the metal strip 201 is the largest, and the product width metal strip 202 divided at each position as it approaches both end portions in the width direction. The height position of the loop supporter 50 is set so that the amount of deflection of the loop supporter 202 gradually decreases. By arranging such a loop supporter 50, even if the product-width metal strips 202 are conveyed in a divergent shape that widens on the downstream side in the conveyance direction, the cutout portions 210 in each product-width metal strips 202 are kept in the conveyance direction. This is advantageous in that the positions can be aligned.

The product-width metal strips 202 conveyed by the loop supporter 50 in a spreading shape are fed to the collecting and feeding device 60, and as shown in FIG. 4, four product-width metal strips 202 adjacent in the width direction are combined into one The transport group 600 is divided into six transport groups 600. The conveyance groups 600 adjacent to each other are supplied from the accumulation/feeding device 60 to the cutoff device 70 and the conveyance device 80 with a required interval in the width direction to form a temporary accumulation section 97 . The product width metal strips 202 of the conveyance group 600 conveyed from the accumulation and conveyance device 60 pass through the cut-off device 70 at a required length (the product length of the flat tube fins 200), and then pass through the holder 82 of the conveyance device 80. It will be held in the state. Although not shown, the operation of the feeding device provided in the collecting and feeding device 60 is controlled by the operation control unit 101 so that it operates in synchronization with the operation of the feeding mechanism 30.

The cutoff device 70 is provided with a fixed blade, a movable blade, and a movable blade drive mechanism (none of which are shown). The operation of the movable blade drive mechanism is controlled by an operation control section 101. Specifically, the operation of the movable blade drive mechanism is controlled so that the movable blade moves toward and away from the fixed blade in the same phase as the movement toward and away from the upper mold and the lower mold in the mold device 22. In this embodiment, a fixed blade is provided on the bottom side of the product width metal strip 202, and a movable blade is provided on the top side of the product width metal strip 202. It is also possible to adopt a form in which the arrangement positions of the two are reversed.

As shown in FIGS. 4 and 5, the conveyance device 80 in this embodiment includes a holder 82 that moves toward and away from each other from the outside of both widthwise ends of the flat tube fin 200, a holder drive unit 84, and a drop guide pin. 86, a drop guide body 87, and a drop guide drive section 88. The holder 82 in this embodiment is formed in an L-shaped cross section, and is arranged in parallel to the length direction while holding both ends of the flat tube fin 200 in the width direction at a required width. The actuator 84 moves toward and away from the close state and away state.

The fall guide pin 86 has a small diameter portion that passes through a through hole (not shown) formed in the holder 82, and the side circumferential surface of the small diameter portion is shaped like a product-width metal band held by the holder 82. It is arranged at a position where it can come into contact with one of the longitudinal side edges of the body 202. The fall guide body 87 is arranged at a position directly above the plurality of notches 210 in the product-width metal strip 202 held by the holder 82 and at a position where it can pass between the two holders 82 in close proximity. has been done. The drop guide drive unit 88 moves the drop guide pin 86 and the drop guide body 87 up and down at the same timing, and can use a fluid cylinder or the like. The operations of the holder drive section 84 and the drop guide drive section 88 are controlled by the operation control section 101 so as to be synchronized with the operations of the accumulation and feeding device 60, the cutoff device 70, and the flat tube fin accumulation device 90.

A flat tube fin accumulation device 90 (hereinafter referred to as accumulation device 90) is disposed below the conveyance device 80. As shown in FIGS. 5 to 7, the stacking device 90 in this embodiment includes a base 91, a fin holder 92, a fin transfer plate 93, a transfer plate holder 94, and a plate holder movement drive section 95. As shown in FIG. 5, two bases 91 are disposed in the width direction in the transport direction, six fin holders 92 are stretched over the bases 91 at required intervals, and each of the fin holders 92 One unit of fins is formed by six fin transfer plates 93 arranged along one upright surface of the fin transfer plate 94, a transfer plate holder 94 that holds the six fin transfer plates 93, and a plate holder movement drive unit 95. A transfer mechanism 96 is configured. In this embodiment, as shown in FIGS. 6 and 7, four units of fin transfer mechanisms 96 are arranged in the length direction of the flat tube fin 200.

The base 91 is disposed at a position outward from both ends in the width direction of the 24 conveyance devices 80 disposed along the conveyance direction of the flat tube fins 200, and is disposed on the left side in FIG. A temporary accumulation section 97 is provided between the base 91 and the conveyance device 80 located at the left end. The fin holder 92 is formed with a width dimension that allows it to enter the notches 210 of the flat tube fins 200, and is placed directly below the notches 210 at a plurality of locations in the product width metal strip 202 conveyed to the conveying device 80. 80 in a horizontal direction orthogonal to the conveyance direction. In this embodiment, as shown in FIG. 6, one set includes two fin holders 92 arranged at a required interval, and three sets are arranged at equal intervals in the length direction (transfer direction) of the base 91. has been done. Of the two fin holders 92, the fin holder 92 located on the downstream side in the conveyance direction is provided with a fin transfer plate 93 along the downstream side in the conveyance direction, and the fin holder 92 on the upstream side in the conveyance direction is provided with a fin transfer plate 93. A fin transfer plate 93 is arranged along the upstream side surface in the conveyance direction.

A set of six fin transfer plates 93 is held in a transfer plate holder 94. The transfer plate holders 94 are arranged at seven locations in the direction in which the fin holder 92 is spanned (extension direction of the fin holder 92: lateral direction in FIGS. 5 and 6). Transfer plate holders 94 arranged at seven locations are attached to a plate holder movement drive section 95. Examples of the plate holder movement drive unit 95 include a fluid cylinder 95A that moves the transfer plate holder 94 in the height direction, and a linear motion device 95B that reciprocates the transfer plate holder 94 in the extension direction of the fin holder 92. I can do it. The linear motion device 95B of the plate holder movement drive section 95 moves the transfer plate holder 94 corresponding to a certain transport group 600 to the initial position of the transfer plate holder 94 corresponding to the transport group 600 adjacent to the downstream side in the discharge direction. After moving to a position downstream in the discharge direction, a reciprocating operation is performed to return to the initial position.

In this way, the fin transfer plate 93 is moved along the fin holder 92 by a distance equivalent to the width range of the transport group 600, and the flat tube fins 200 held in the fin holder 92 are transported to the temporary accumulation section 97. As a result, the next product width metal strip 202 can be received in a short time. The operation of the plate holder moving drive section 95 is controlled by the operation control section 101 so that it operates in synchronization with the operations of the accumulation and feeding device 60, the cutoff device 70, and the conveyance device 80.

Next, a method of stacking the flat tube fins 200 on the stacking device 90 in this embodiment will be explained. Note that since the operations of each component between the material supply section 10 and the collecting and feeding device 60 are well known, a detailed explanation of the operations will be omitted here.

The product-width metal strip 202 sent from the accumulation feeder 60 to the cutoff device 70 and the transfer device 80 in a state of being divided into six transfer groups 600 is cut out by the loop supporter 50 into a notch 210 at a specific location in the transfer direction. The positions of are aligned. As shown in FIG. 8, after the product-width metal strip 202 passes through the cutoff device 70 and is held by the two holders 82 in close proximity in the conveyance device 80, the operation control section 101 controls the falling guide drive section. 88 is activated to lower the drop guide pin 86 and the drop guide body 87 to a predetermined position. As a result, as shown in FIG. 9, the side surface of the tip end of the drop guide pin 86 comes into contact with the edge in the width direction of the product-width metal strip 202, and the drop guide 87 cuts out multiple notches in the product-width metal strip 202. 210, and the product width metal strip 202 is positioned in the conveyance direction and the width direction. Note that the lower end of the drop guide body 87 can also be lowered to a position where it comes into contact with the upper end surface of the fin holder 92. Subsequently, the operation control unit 101 operates the cut-off device 70 to cut the product width metal strip 202 into product lengths to separate the metal strips 202 into individual flat tube fins 200.

After the product width metal strip 202 is separated into the flat tube fins 200, the operation control unit 101 operates the holder drive unit 84 to move the holder 82 to the outer position in the width direction of the flat tube fins 200. alienate Then, as shown in FIG. 10, the flat tube fin 200 will fall from the holder 82. At this time, in addition to the falling guide body 87 and the fin holder 92 being on the same straight line, the falling guide pin 86 restricts the wobbling in the width direction, so that the falling guide body 87 is not inserted through the fin holder 92. It is possible to enter the notch 210 that was previously located. As shown in FIG. 11, the flat tube fin 200 transferred to the fin holder 92 in this manner is in a state where the opening side of the notch 210 is on the lower side (90 degrees from the state held in the holder 82). It is held in the fin holder 92 in a rotated state).

After the holding body 82 is separated to the outer position in the width direction of the flat tube fin 200 and the flat tube fin 200 is held by the fin holder 92 (after the required time has elapsed since the separation of the holding body 82 is completed), the operation control unit 101 The holder drive unit 84 is operated to return the holder 82 to the close state, and the drop guide drive unit 88 is also operated to move the drop guide pin 86 and the drop guide body 87 to the upper position (product width metal) shown in FIG. the belt-shaped body 202 to an initial position at a height that does not interfere with the conveyance of the belt-shaped body 202.

FIG. 12 shows the state shown in FIG. 11 only in the area of the integration device 90. In FIG. After reaching the state shown in FIG. 12, the operation control unit 101 operates the fluid cylinder 95A of the plate holder movement drive unit 95 to raise the transfer plate holder 94 as shown in FIG. The linear motion device 95B of the moving drive unit 95 is operated to move the four flat tube fins 200 held in the range of each transport group 600 in the fin holder 92 to the discharge side (FIG. 14). It is made to accumulate primarily in each temporary accumulation part 97 provided beforehand between the conveyance group 600 adjacent to the left side of the inside). Thereafter, the operation control unit 101 operates the fluid cylinder 95A of the plate holder movement drive unit 95 to lower the transfer plate holder 94 to the initial position as shown in FIG. The moving device 95B is operated to return the transfer plate holder 94 to the initial position as shown in FIG.

That is, the operation control unit 101 controls the operation of the plate holder moving drive unit 95 to the states shown in FIGS. 12 to 16 after the holder 82 is separated from the close state and before it is brought into the close state again. There is. Note that the minimum number of flat tube fins 200 that can be stacked in the temporary stacking section 97 can be set by performing a simulation in advance.

The operation of supplying the product width metal strip 202 to the conveying device 80 by the accumulating and feeding device 60 is also synchronized with the operations of the conveying device 80 and the accumulating device 90. After the previously supplied product width metal strip 202 is accumulated in the temporary accumulation section 97 of the accumulation device 90 as shown in FIG. 202 is held by the two holding bodies 82 in close proximity to each other in the conveying device 80, the collecting and feeding device 60 is operated. After that, as shown in FIGS. 8 to 11, the operation control unit 101 performs the same process as the process for the previously supplied product width metal strip 202, and separates it into flat tube fins 200. As shown in the figure, the fin holder 92 additionally holds the flat tube fin 200.

After the flat tube fin 200 is additionally held in the fin holder 92, the operation control unit 101 operates the fluid cylinder 95A of the plate holder movement drive unit 95 in the same manner as the previous timing, as shown in FIG. After raising the transfer plate holder 94, the linear motion device 95B of the plate holder moving drive section 95 is activated to transfer the four sheets held within the range of each transport group 600 of the fin holder 92, as shown in FIG. fins 200 for flat tubes are primarily accumulated in each temporary accumulation section 97. Thereafter, the operation control unit 101 operates the fluid cylinder 95A of the plate holder movement drive unit 95 to lower the transfer plate holder 94 to the initial position as shown in FIG. The moving device 95B is operated to return the transfer plate holder 94 to the initial position as shown in FIG.

By repeating the above operations, when the metal strips 201 consisting of 24 product width metal strips 202 are stacked by the stacking device 90 in this embodiment, the flat tubes temporarily stacked in each temporary stacking section 97 are As shown in FIG. 20, the number of fins 200 converges to 4, 8, 12, 16, 20, and 24 from the right side of the figure. The flat tube fin assembly 300 accumulated in the temporary accumulation section 97 at the left end in the figure, which is the most downstream location in the carry-out direction, is carried out by the operator using the carry-out rail 500 as a fin carry-out body, and is then carried out to the next step, which is core assembly. Supplied to device 400. The flat tube fin assembly 300 can also be discharged from the temporary accumulation section 97 to the carry-out rail 500 using an unillustrated discharge device.

In the flat tube fin manufacturing apparatus 100 including the accumulating device 90 in this embodiment, the flat tube fin assembly 300 can be discharged from the flat tube fin manufacturing apparatus 100 while the press device 20 is kept operating. can. Furthermore, since the flat tube fin assembly 300 has the flat tube fins 200 stacked in the horizontal direction, there is no need to change the attitude of the flat tube fin assembly 300 in the next step, the core assembly device 400. It is also convenient for

(Second embodiment)
FIG. 21 is a right side view of the flat tube fin accumulation device 90 in the second embodiment. In addition, in this embodiment, the same reference numerals used in the first embodiment are used in the specification and drawings for the same configurations as in the first embodiment, so that duplicate explanations here will be omitted. There is. The fin accumulation device 90 in this embodiment is characterized by having a fin guide body 98 that serves as a guide when the flat tube fins 200 and the flat tube fin accumulation body 300 move on the fin holder 92. . In this embodiment, the fin guide body 98 is in contact with the upper surface of the flat tube fin 200 and the flat tube fin assembly 300 that are suspended and held by the fin holder 92, and the fin guide body 98 is in contact with the upper surface of the flat tube fin 200 and the flat tube fin assembly 300. It has a flat plate shape that covers the top surface of 300. Furthermore, the fin guide body 98 in this embodiment is formed integrally with the upper end of the fin transfer plate 93, and as shown in FIG. 21, the fin transfer plate 93 and the fin guide body 98 form an inverted L shape. is doing. Note that the fin guide body 98 is not limited to the form in which it is formed integrally with the fin transfer plate 93, but can also be arranged independently of the fin transfer plate 93.

When a configuration in which the fin guide body 98 is integrated with the fin transfer plate 93 as in this embodiment is adopted, the operation of the fin accumulation device 90 becomes more complicated than in the first embodiment. The operation of the fin integration device 90 in the embodiment will be described below. FIG. 21 shows a state in which the fins 200 for flat tubes on the fin holder 92 are temporarily accumulated in the accumulation section 97, and then the fin transfer plate 93 and the fin guide body 98 are moved to the right side in the figure by the linear motion device 95B. be. The operation control section 101 operates the linear motion device 95B to move the fin transfer plate 93 to a position where the tip end position of the fin guide body 98 does not interfere with the flat tube fin assembly 300 accumulated in the temporary accumulation section 97. Move the fin guide body 98. Next, as shown in FIG. 22, the operation control unit 101 operates the fluid cylinder 95A to raise the fin transfer plate 93 and the fin guide body 98. The operation control unit 101 extends the fluid cylinder 95A until the lower surface of the fin guide body 98 comes into contact with the upper end of the flat tube fin 200 suspended from the fin holder 92.

Next, the operation control unit 101 operates the linear motion device 95B, and as shown in FIG. The guide body 98 is moved to the left side (feeding side) in the figure. After the movement of the fin transfer plate 93 and the fin guide body 98 is completed, the operation control unit 101 supplies (drops) the flat tube fin 200 from the transport device 80 to the fin holder 92, as shown in FIG. Next, as shown in FIG. 24, the operation control unit 101 operates the linear motion device 95B to move the fin transfer plate 93 and the fin guide body 98 to the left side in the figure, so that they are suspended and held by the fin holder 92. The flat tube fins 200 and the flat tube fin assembly 300 are fed to the temporary accumulation section 97 while being guided. Next, the operation control section 101 operates the linear motion device 95B as shown in FIG. 25 to prevent interference with the flat tube fin assembly 300 in which the fin transfer plate 93 and the fin guide body 98 are accumulated in the primary accumulation section 97. position to the right in the diagram.

Next, the operation control unit 101 operates the fluid cylinder 95A to lower the fin transfer plate 93 and the fin guide body 98, and operates the linear motion device 95B to bring the fin transfer plate 93 and the fins to the position shown in FIG. The guide body 98 is moved. In this embodiment, between the state shown in FIG. 25 and the state shown in FIG. 300 is being sent out from the delivery rail 500 to the next process. In this way, the state shown in FIG. 21 to the state shown in FIG. 26 is repeated.

According to this embodiment, the upper ends of the flat tube fins 200 and the flat tube fin assembly 300, which are suspended and held by the fin holder 92 by the fin guide body 98, are lightly pressed toward the fin holder 92. can do. As a result, when the flat tube fins 200 and the flat tube fin assembly 300 are slid along the fin holder 92, one of the flat tube fins 200 may come up from the fin holder 92 or otherwise deviate from the fin holder 92. is prevented.

Although the flat tube fin manufacturing apparatus 100 equipped with the flat tube fin accumulation device 90 according to the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments. For example, although 24 product-width metal strips 202 are formed on the metal strip 201 in this embodiment, the number of product-width metal strips 202 formed on the metal strip 201 may be more than one. Well, the specific number is not particularly limited. Further, the number of transport groups 600 can be changed as appropriate depending on the number of product width metal strips 202 formed on the metal strip 201.

Further, in the conveying device 80 in this embodiment, the holder 82 is arranged along the entire range in the length direction of the product width metal strip 202, but the It is also possible to adopt a form in which the holders 82 are arranged at a plurality of locations at intervals. Furthermore, the holding body 82 is not limited to an L-shaped cross section. Other shapes such as a U-shape may also be adopted as long as the product width metal strip 202 can be held.

Further, in the flat tube fin accumulation device 90 according to the present embodiment, four units of fin transfer mechanisms 96 are arranged in the length direction of the flat tube fins 200, but one fin transfer mechanism 96 It is also possible to adopt a configuration in which the tube fin 200 is carried out. Moreover, although the flat fin transfer plate 93 is disposed only on one of the upstream side surface and the downstream side surface of the fin holder 92, the present invention is not limited to this form. The fin transfer plate 93 may also be formed into a substantially U-shape that sandwiches the fin holder 92 therebetween.

Furthermore, the fin guide body 98 in the second embodiment is brought into contact with the upper surfaces of the flat tube fins 200 and the flat tube fin assembly 300 that are suspended and held by the fin holder 92, but is limited to this form. It is not something that will be done. The fin guide body 98 connects the flat tube fins 200 and the flat tube fin assembly 300 at a position slightly apart from the upper surface of the flat tube fins 200 and the flat tube fin assembly 300 that are suspended and held by the fin holder 92. It is also possible to adopt a configuration in which the top surface of 300 is covered.

Furthermore, in the second embodiment, the flat tube fin assembly 300 collected in the temporary collection unit 97 of the fin holder 92 is sent out from the carry-out rail 500 to the next process between the state shown in FIG. 25 and the state shown in FIG. However, it is not limited to this form. The flat tube fin assembly 300 collected in the temporary collection section 97 of the fin holder 92 may be sent out to the next process from the carry-out rail 500 between the state shown in FIG. 24 and the state shown in FIG. 25.

Furthermore, it is also possible to employ a configuration in which various modifications of the embodiments described above are combined as appropriate.

10: Material supply unit 11: Thin plate, 12: Uncoiler, 14: Loop controller, 16: NC feeder 20: Press device 22: Mold device 30: Feeding mechanism 32: Reciprocating unit, 34: Feeding pin 40: Slit between rows Device 42: Cutting blade 50: Loop supporter 60: Accumulating feed device 70: Cut-off device 80: Conveying device 82: Holding body, 84: Holding body drive unit, 86: Falling guide pin, 87: Falling guide body,
88: Falling guide drive unit 90: Flat tube fin accumulation device 91: Base, 92: Fin holder, 93: Fin transfer plate,
94: Transfer plate holder, 95: Plate holder movement drive unit,
95A: fluid cylinder, 95B: linear motion device, 96: fin transfer mechanism, 97: temporary accumulation section,
98: Fin guide body 100: Flat tube fin manufacturing device 101: Operation control unit 200: Flat tube fin, 201: Metal strip, 202: Product width metal strip 210: Notch, 220: Louver, 230: Plate Shape portion, 240: Opening portion, 250: Connecting portion 300: Flat tube fin assembly 400: Core assembly device 500: Carrying out rail 600: Transport group

Claims (6)

A product-width metal strip that was pressed by a press device and had a notch into which a flat tube for a heat exchanger was inserted was conveyed along a conveyance device, and then the product-width metal strip was cut to the product length. A fin accumulation device for flat tubes that accumulates fins for flat tubes after dropping them from the conveying device,
A plurality of fin holders are disposed along the length of the flat tube fin, and the fin holders are disposed perpendicular to the conveyance direction of the conveyance device in a horizontal direction and are disposed directly below the notch. ,
A fin transfer plate that extends from the lower side to the upper side of the fin holder along the upstream side and downstream side of the fin holder in the length direction of the flat tube fin, and a transfer plate that holds the fin transfer plate. A fin transfer mechanism including a holder and a plate holder movement drive unit that moves the transfer plate holder in the extension direction and height direction of the fin holder is spaced at a required interval in the length direction of the flat tube fin. There are multiple locations,
The fin transfer mechanism is characterized in that, after the flat tube fins are suspended from the fin holder, each of the flat tube fins is temporarily accumulated at a plurality of preset locations within the fin holder. Fin accumulator for flat tubes. The product-width metal strips are grouped into transport groups each containing a plurality of strips,
The fin transfer mechanism is configured to temporarily accumulate each of the flat tube fins at a preset position outside the transport group in the width direction after the flat tube fins are suspended from the fin holder. The fin accumulation device for flat tubes according to claim 1. When the number of flat tube fins temporarily accumulated at the most downstream location of the fin holder exceeds a preset number, the fin carries out the flat tube fins accumulated at the most downstream location to the outside. The flat tube fin accumulation device according to claim 2, further comprising a delivery body. The upper surface of each of the flat tube fins is touched at a position where the upper end of each of the flat tube fins is in contact with the upper end of each of the flat tube fins suspended from the fin holder, or at a position where there is a gap between the upper end of each of the flat tube fins. The flat tube fin according to any one of claims 1 to 3, further comprising a fin guide body that covers and moves along the fin holder together with the fin transfer plate. Accumulator. A drop that can be raised and lowered between a position above the conveyance device and a position where it passes through the notch of the product-width metal strip held by the conveyance device and abuts or faces the upper end surface of the fin holder. The flat tube fin accumulation device according to any one of claims 1 to 3, further comprising a guide body. The falling guide body passes through the notch and descends to a position where it abuts or faces the upper end surface of the fin holder before cutting the product-width metal strip fed into the conveying device into the product length. 6. A flat tube according to claim 5, wherein the flat tube fin, in which the product width metal strip is cut to the product length, returns to a position above the conveying device after falling into the fin holder. Fin accumulator.

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