JP6503468B2 - Hairpin-shaped heat exchange tube guiding device and hairpin-shaped heat exchange tube inserting device - Google Patents

Description

  The present invention relates to a guide device for holding a hairpin-shaped heat exchange tube inserted into stacked fins, and a hairpin-shaped heat exchange tube insertion device using this guide device.

  As shown in FIG. 13, in a heat exchanger such as a cooler, a heat exchange pipe that causes a heat medium to flow through the through holes 11 of the laminated fins 10 formed by laminating a plurality of fins 9 in which the through holes 11 are formed. It is inserted and constituted. As a heat exchange pipe, a hairpin-shaped heat exchange tube 20 formed by bending a copper tube in a U-shape at a central portion is used.

Since the hairpin-shaped heat exchange tube 20 is formed by bending a long soft member such as a copper tube, a force to spread the film is generated by any means, and a twist is also easily generated.
Therefore, when the hairpin-shaped heat exchange tube 20 is inserted into the laminated fin 10, the widths of the two tubes of the hairpin-shaped heat exchange tube 20 are kept constant and held so as not to cause twisting. A guiding device is required.

Examples of conventional guide devices are shown in FIGS. 14 and 15. FIG.
The guide device shown in FIG. 14 is as shown in FIG. 17 of Patent Document 1, and the forming direction of a plurality of V-shaped cutouts 23 and a plurality of cutouts 23 are formed. And a movable plate 24 which moves relative to the regulating plate 22 along the length of The movable plate 24 is formed with a hook portion 26 formed in a U-shape.

  The distance between the V-shaped apexes of the adjacent notches 23 is made equal to the distance between the through holes 11 of the laminated fin 10. Then, by arranging each tube of the hairpin-shaped heat exchange tube 20 in the cutout portion 23, the width of each tube of the hairpin-shaped heat exchange tube 20 can be made equal to the width of the through hole 11. Then, when the moving plate 24 is moved, the flange portion 26 of the moving plate 24 holds the upper surface of each pipe housed in the notch 23.

  Further, a guide device shown in FIG. 15 is as shown in FIG. 14 of Patent Document 1, and a guide portion 29 in which a long hole 28 having the same width as the width to be maintained of each tube is formed; A center pin (not shown) is inserted into the elongated hole 28 in a direction perpendicular to the insertion direction of the hairpin heat exchange tube 20. The inlet side of the elongated hole 28 of the guide portion 29 is formed so that the diameter gradually widens outward, and even in the case of the expanding hairpin-shaped heat exchange tube 20, the elongated hole 28 is surely formed. It can be inserted.

Patent No. 3315151

In the conventional guide device described above, when the through holes 11 formed in the laminated fins 10 are three or more, there is a problem that guiding can not be performed with these configurations. In the configurations shown in FIGS. 14 and 15, it is possible to cope with up to two rows. In the configuration of FIG. 14, the positioning by the collar 26 is from one side, and in the configuration of FIG. 15, the positioning by the center pin not shown is also from one side. .
For example, in the case where the through holes of the laminated fins 10 are formed in three or more lines and are arranged in a staggered arrangement, it is not possible to guide both of the guide devices shown in FIGS. 14 and 15.

  Therefore, the present invention has been made to solve the above-mentioned problems, and the object of the present invention is to provide a hairpin-shaped heat capable of guiding a hairpin-shaped heat exchange tube to a laminated fin in which three or more rows of holes are formed. It is an object of the present invention to provide a guide device for exchange tubes and to provide an insertion device for a hairpin heat exchange tube using such a guide device.

According to the hairpin heat exchange tube guide device of the present invention, the hairpin heat exchange tube used to insert the hairpin heat exchange tube into the through hole of the laminated fin for heat exchanger is held. In the guide device, the through holes of the laminated fin are formed in a plurality of rows, and the axial direction extends in a direction along a diagonal direction toward the through holes which are offset by one row with respect to the through holes of different rows A direction along an oblique direction toward a through hole which is shifted by one row in the opposite direction to the oblique direction with respect to the first guide portion provided with a plurality of first guide pins and the through holes of different rows A second guide portion provided with a plurality of second guide pins extending in the axial direction, and a first guide pin moving device for moving the first guide portion along the axial direction of the first guide pin And the second guide portion And a second guide pin moving device for moving the second guide pin along the axial direction, wherein a hairpin heat exchange tube is held in a gap between each of the first guide pins and each of the second guide pins. It is characterized by
By adopting this configuration, a plurality of hairpin-shaped heat exchange tubes can be held so as to be insertable at one time to the laminated fin in which the through holes are formed in three or more rows. it can.

Further, the first guide pin moving device and the second guide pin moving device are provided on one rod, a first guide roller attached to one surface of the tip of the rod, and the other surface of the tip of the rod. And a first guide unit having a first guide plate to which each of the first guide pins is attached, the first guide unit having a first guide plate attached to the first guide plate. A first guide groove is formed along a direction perpendicular to the protruding and inserting direction of the rod of the cylinder device, the first guide roller is disposed in the first guide groove, and the second guide portion It has a second guide plate to which each of the second guide pins is attached, and the second guide plate is disposed at a position opposite to the first guide plate with the rod interposed therebetween, A second guide groove is formed in the second guide plate along a direction orthogonal to the protruding and entering direction of the rod of the cylinder device, and the second guide roller is disposed in the second guide groove. It may be characterized by
According to this configuration, it is possible to simultaneously move the first guide pin and the second guide pin which move in different directions by one cylinder device.

In addition, it may be characterized in that it comprises a guide entire moving device for moving the guide device along the axial direction of the hairpin heat exchange tube.
According to this configuration, it is possible to move the guide device in the direction of the laminated fin along with the insertion of the hairpin-shaped heat exchange tube into the laminated fin. For this reason, a suitable position can be always maintained for a hairpin-shaped heat exchange tube.

According to the insertion device for hairpin-shaped heat exchange tube according to the present invention, the insertion device is for inserting the hairpin-shaped heat exchange tube into the through hole of the laminated fin for heat exchangers in which the through holes are formed in multiple rows. Different from the first guide portion provided with a plurality of first guide pins in which the axial direction extends in the direction along the diagonal direction toward the through holes that are offset by one row with respect to the through holes of different columns A plurality of second guide pins provided with a plurality of second guide pins whose axial directions extend in a direction along an oblique direction toward the through holes that are offset by one row in a direction opposite to the oblique direction with respect to the through holes in a row; (2) moving a first guide pin moving device for moving the first guide portion along the axial direction of the first guide pin, and moving the second guide portion along the axial direction of the second guide pin A second guide pin moving device A plurality of guide devices for holding the hairpin-shaped heat exchange tube in the gap between each of the first guide pins and each of the second guide pins are provided along the axial direction of the hairpin-shaped heat exchange tube. A plurality of contact portions are provided which are in contact with the bent portions which are the bent portions of the held hairpin-shaped heat exchange tube, and the laminated fins are placed and placed so that the through holes face the guide device side. A fin receiver having an insertion block in contact with an end face of the laminated fin in the direction opposite to the guide device side, and the laminated fin being moved relative to each other by moving the fin receiver and the contact portion relative to each other A contact / separation device for inserting the hairpin-shaped heat exchange tube into the through hole is provided.
By adopting this configuration, the hairpin-shaped heat exchange tube can be reliably guided and inserted into the laminated fins in which the through holes are formed in a plurality of rows of three or more.

  Further, the contact / separation device may be a laminated fin moving device for moving the fin receiver to the guide device side.

  The contact / separation device may be a contact portion moving device that moves the contact portions along the axial direction of the hairpin heat exchange tube.

Further, the contact / separation device is a laminated fin moving device for moving the fin receiver to the side of the guide device, and the contact portion positions the bending portion of the hairpin-shaped heat exchange tube in contact with the contact portion. Of the plurality of guide devices provided in the guide device positioned on the bending portion side of the hairpin-shaped heat exchange tube among the plurality of guide devices, and each of the guides other than the guide device provided with the contact portion The respective guide devices are moved in the axial direction of the hairpin-shaped heat exchange tube so that the position of holding the hairpin-shaped heat exchange tube in the device is moved according to the insertion of the hairpin-shaped heat exchange tube into the laminated fin. It may be characterized in that a guide entire moving device for moving along is provided.
According to this configuration, the contact portion provided on the guide device positioned on the bending portion side of the hairpin heat exchange tube fixes the position of the hairpin heat exchange tube as a stopper, and the other guide device is a hairpin The hairpin heat exchange tube can be held at an appropriate position according to the insertion of the heat exchange tube.

Further, the laminated fin moving device is controlled to move the laminated fins in the direction of each of the guide devices, and after moving the laminated fins in the direction of each of the guide devices, lamination among a plurality of guide devices is performed. The guide for moving one guide device located on the laminated fin side to the bending portion side of the hairpin-shaped heat exchange tube so that the moved laminated fin does not abut on the one guide device located on the fin side After controlling the whole moving device and moving the one guide device to the bending portion side of the hairpin-shaped heat exchange tube, the one guide device does not abut the other guide device. It controls the whole guide movement device to stop the movement of the device, and moves the laminated sheet moving to the first guide pin and the second guide pin of the one guide device. So that the guides of the hairpin-shaped heat exchange tube by the first guide pins and the second guide pins of the one guide device are released at a predetermined timing so that the The first guide pin moving device and the second guide pin moving device are controlled so that the moving laminated fin does not abut the first guide pin and the second guide pin of the other guide device. The first guide pin moving device of the other guide device and the above so as to release the guide of the hairpin heat exchange tube by the first guide pin and the second guide pin of the other guide device at a predetermined timing. The second guide pin moving device is controlled, and after the insertion of the hairpin heat exchange tube into the laminated fin is completed, the hairpin by the abutting portion is Controlled to release the position fixing shaped for heat exchanger tubes may be characterized by comprising a control unit.
According to this configuration, since the hairpin-shaped heat exchange tube is held by the plurality of guide devices from the beginning of the insertion, expansion and twisting of the hairpin-shaped heat exchange tube can be suppressed, and reliable insertion is possible. Also, until the remaining length of the hairpin-shaped heat exchange tube to be inserted becomes short and it becomes impossible to guide by one of the guide devices, the guide device is moved along with the approach of the laminated fin to the guide device, so The hairpin-shaped heat exchange tube is guided by two guide devices to provide a reliable guide. In addition, since the guide of the hairpin heat exchange tube by the first guide pin and the second guide pin is released at a predetermined timing as the laminated fin moves, the laminated fin contacts the first guide pin and the second guide pin. You can avoid contact.

Further, the control unit determines an insertion error of the hairpin-shaped heat exchange tube based on the pressure applied to each of the contact portions, and a hairpin-shaped heat exchange determined to be an insertion error among the plurality of contact portions. The position fixing of the contact portion in contact with the tube is released, and the movement operation of the laminated fin moving device is controlled as it is, and the laminated fins are moved in the direction of each guide device. Among the guide devices of the platform, one of the guide devices located on the laminated fin side is bent by bending the hairpin heat exchange tube so that the moved laminated fin does not abut on the one guide device located on the laminated fin side. The entire guide moving device is controlled to move to the part side and the one guide device is moved to the other guide device after the one guide device is moved to the bending portion side of the hairpin heat exchange tube. Control the entire guide moving device to stop the movement of the one guide device so as not to abut on the first guide pin and the second guide pin of the one guide device. One of the guide devices is configured to release the guide of the hairpin heat exchange tube by the first guide pin and the second guide pin of the one guide device at a predetermined timing so that the stacked fins do not abut. Controlling the first guide pin moving device and the second guide pin moving device so that the moving laminated fin does not abut the first guide pin and the second guide pin of the other guide device. And release the guide of the hairpin heat exchange tube by the first guide pin and the second guide pin of the other guide device at a predetermined timing. It may be characterized in that controlling the urchin the other of the first guide pin moving device and the second guide pin moving device guide device.
According to this configuration, even if there is an insertion error of the hairpin-shaped heat exchange tube, the position fixing of the hairpin-shaped heat exchange tube of the abutment portion is released, and the rest is the same as the operation at the time of insertion The laminated fin with the hairpin-shaped heat exchange tube inserted halfway can be taken out only by performing the operation of In addition, since the insertion operation can be continued for the hairpin-shaped heat exchange tube without insertion error, only the hairpin-shaped heat exchange tube with the insertion error can be corrected later, and the production efficiency can be increased.

Further, the contact and separation motion device is a contact portion moving device that moves each of the contact portions along the axial direction of the hairpin-shaped heat exchange tube, and the contact portions are a plurality of the guide devices. The other guide device provided on the bending portion side of the hairpin-shaped heat exchange tube is provided, and the contact portion moving device is provided on the other bending portion side of the hairpin-shaped heat exchange tube The guide device is moved along the axial direction of the hairpin-shaped heat exchange tube, and the position of holding the hairpin-shaped heat exchange tube in one of the guide devices located on the laminated fin side is the same as that of the hairpin-shaped heat exchange tube. It is an entire guide moving device for moving each of the guide devices along the axial direction of the hairpin heat exchange tube so as to move according to the state of insertion into the laminated fins. It may be characterized.
According to this configuration, the contact portion provided on the guide device located on the bent side of the hairpin heat exchange tube presses the hairpin heat exchange tube to insert the hairpin heat exchange tube into the laminated fin However, the hairpin heat exchange tube can be held at an appropriate position according to the insertion of the hairpin heat exchange tube.

Further, the hairpin-like heat exchange tube is controlled by pressing the hairpin-like heat exchange tube by the contact portion to move the hairpin-like heat exchange tube in the direction of the laminated fin, and the hairpin-like heat exchange is controlled. After moving the tube in the direction of the laminated fin, one of the plurality of guide devices located on the laminated fin side is not in contact with the laminated fin and the other guide device. The first guide pin moving device and the second guide pin of the one guide device so as to release the guide of the hairpin-shaped heat exchange tube by the first guide pin and the second guide pin of the device at a predetermined timing. The moving device is controlled so that the first guide pin and the second guide pin of the other guide device do not abut against the laminated fin. And the first guide pin moving device and the first guide device of the other guide device so as to release the guide of the hairpin-shaped heat exchange tube by the first guide pin and the second guide pin of the other guide device at a predetermined timing. (2) Control the guide pin moving device so as to release the contact of the hairpin-shaped heat exchange tube with the bent portion of the hairpin-shaped heat exchange tube by the contact portion after the insertion of the hairpin-shaped heat exchange tube into the laminated fin is completed And a controller may be provided.
According to this configuration, since the hairpin-shaped heat exchange tube is held by the plurality of guide devices from the beginning of the insertion, it is possible to reliably insert the hairpin-shaped heat exchange tube while suppressing the expansion and twisting. . Also, until the remaining length of the hairpin-shaped heat exchange tube to be inserted becomes short and it becomes impossible to guide by one of the guide devices, the guide device is moved along with the approach of the laminated fin to the guide device, so -Shaped heat exchange tubes are guided by the two guide devices to ensure reliable guidance. In addition, since the guide of the hairpin heat exchange tube by the first guide pin and the second guide pin is released at a predetermined timing, the laminated fin can be prevented from contacting the first guide pin and the second guide pin.

Further, the control unit determines an insertion error of the hairpin-shaped heat exchange tube based on the pressure applied to each of the contact portions, and a hairpin-shaped heat exchange determined to be an insertion error among the plurality of contact portions. The contact of the contact portion in contact with the tube is released, and the movement operation of the entire guide moving device is controlled as it is, and the hairpin-shaped heat exchange tube is moved toward the laminated fin After that, the first guide pin and the first guide device of the one guide device are arranged so that one of the plurality of guide devices located on the laminated fin side does not abut the laminated fin and the other guide device. The first guide pin moving device and the second guide pin moving device of the one guide device so as to release the guide of the hairpin-shaped heat exchange tube by the two guide pins at a predetermined timing A hairpin shape by the first guide pin and the second guide pin of the other guide device so that the first guide pin and the second guide pin of the other guide device do not abut on the laminated fin. Controlling the first guide pin moving device and the second guide pin moving device of the other guide device so as to release the guide of the heat exchange tube at a predetermined timing, and the hairpin thermal power to the laminated fin After the insertion of the exchange tube, control may be performed to release the contact of the contact portion with the bent portion of the hairpin heat exchange tube.
According to this configuration, even if there is an insertion error of the hairpin-shaped heat exchange tube, the pressing of the hairpin-shaped heat exchange tube by the abutting portion is released, and the same operation as the operation at the time of insertion is performed thereafter. Only by carrying out, it is possible to take out the laminated fin with the hairpin heat exchange tube inserted halfway. In addition, since the insertion operation can be continued for the hairpin-shaped heat exchange tube without insertion error, only the hairpin-shaped heat exchange tube with the insertion error can be corrected later, and the production efficiency can be increased.

According to the hairpin-shaped heat exchange tube guide device of the present invention, the hairpin-shaped heat exchange tube can be guided with respect to the laminated fin in which the through holes are formed in three or more rows.
Moreover, according to the insertion apparatus of the hairpin-shaped heat exchange tube of this invention, insertion of the hairpin-shaped heat exchange tube can be performed with respect to the lamination | stacking fin in which three or more rows of through-holes are formed.

It is a front view of a lamination fin where three rows of through holes are arranged in a zigzag. It is a top view of a hairpin-like heat exchange tube. It is a side view of a guide device of a hairpin-like heat exchange tube of this embodiment. It is a front view of the guide device of a hairpin-like heat exchange tube in the state holding a hairpin-like heat exchange tube. It is a front view of a guide device in the state where release of holding of a hairpin-like heat exchange tube is carried out. It is explanatory drawing of a 1st guide pin. It is explanatory drawing of a 2nd guide pin. It is an explanatory view showing a holding state of a hairpin-like heat exchange tube by the 1st guide pin and the 2nd guide pin. It is a top view of the insertion apparatus of the heat exchange tube of the hairpin shape of this embodiment. It is a side view of the insertion apparatus of the heat exchange tube of a hairpin shape. It is an explanatory view showing insertion operation of a hairpin-like heat exchange tube insertion device. It is an explanatory view showing operation when there is an insertion mistake. It is explanatory drawing which shows the insertion to the lamination | stacking fin of the heat exchange tube of a hairpin shape. It is explanatory drawing of the guide apparatus of the conventional hairpin-shaped heat exchange tube. It is explanatory drawing which shows the other structure of the guide apparatus of the conventional hairpin-shaped heat exchange tube.

Hereinafter, a hairpin-shaped heat exchange tube guide device (hereinafter, simply referred to as a guide device) according to the present embodiment will be described based on the drawings.
First, the front view of the lamination | stacking fin 40 used as insertion object of a hairpin-shaped heat exchange tube in this embodiment is shown in FIG. As shown in FIG. 1, the lamination fins 40 to which the hairpin-shaped heat exchange tube of this embodiment is to be inserted have a plurality of through holes 41 arranged in a plurality of rows in a staggered manner (the positions of the through holes 41 differ in each row) To be placed in an alternating state). In FIG. 1, the vertical direction is a column, and the horizontal direction is a row.

FIG. 2 shows a plan view of a hairpin-shaped heat exchange tube.
The hairpin-shaped heat exchange tube 20 is a metal tube of a material with high thermal conductivity such as a copper tube, and is bent in a U-shape at a central bending portion 21.
The hairpin-shaped heat exchange tube 20 is bent in a U-shape, so it often spreads due to its elastic force, and bending or twisting may also occur. Then, when inserting in the through-hole 41 of the lamination | stacking fin 40, it becomes necessary to hold | maintain by the guide apparatus 50 like this embodiment.

(Embodiment of guide device)
FIG. 3 is a side view of the guide device of the hairpin-shaped heat exchange tube according to the present embodiment, and FIG. 4 is a front view of the guide device, showing a state in which the hairpin-shaped heat exchange tube is held. FIG. 5 is a front view of the guide device, showing a state in which the holding of the hairpin heat exchange tube is released.
Here, the axial direction of the hairpin-shaped heat exchange tube 20 extends from the front to the back, the bent portion 21 of the hairpin-shaped heat exchange tube 20 is disposed on the front side, and the laminated fin is disposed on the back side. It shall be.

In the present embodiment, the through holes 41 of the laminated fins 40 are directed in the horizontal direction, and the hairpin-shaped heat exchange tube 20 is configured to be moved in the horizontal direction and inserted.
The hairpin-shaped heat exchange tube 20 may be pressed to the laminated fin 40 side, or the laminated fin 40 may be inserted into the through-hole 41 of the hairpin-shaped heat exchange tube 20. You may press it. Here, the configuration for pressing the hairpin-shaped heat exchange tube 20 or the configuration for pressing the laminated fin is omitted.

  In the guide device 50, the plurality of first guide pins 52 and the plurality of second guide pins 54 are disposed at predetermined distances from each other along the axial direction of the hairpin heat exchange tube 20 to be guided. It is configured to cross when viewed from the front. The hairpin-shaped heat exchange tube 20 has a plurality of first guide pins 52 and a plurality of first guide pins 52 spaced from each other by a predetermined distance along the axial direction of the hairpin-shaped heat exchange tube 20. The two guide pins 54 are sandwiched and held in a gap 59 formed by intersection when viewed from the front.

  The plurality of first guide pins 52 are provided in the first guide portion 56. The first guide portion 56 includes a first guide plate 58 to which a plurality of first guide pins 52 are attached, a first linear movement guide 60 for guiding the movement of the first guide plate 58, and a first linear movement guide And 60 has a first linear motion guide mounting plate 61 attached thereto.

  The plurality of second guide pins 54 are attached to the second guide portion 55. The second guide 55 includes a second guide plate 57 to which a plurality of second guide pins 54 are attached, a second linear guide 62 for guiding the movement of the second guide plate 57, and a second linear guide And 62 has a second linear motion guide mounting plate 63 attached thereto.

  As shown in FIGS. 4 and 5, the hairpin heat exchange tubes 20 are alternately arranged in a staggered manner, that is, in the row direction (vertical direction) in accordance with the positions of the through holes 41 of the laminated fins 40.

  As shown in FIG. 6, the first guide pin 52 has a diameter passing through the inside of at least two hairpin heat exchange tubes 20 arranged at different positions in the vertical direction. The first guide pins 52 extend in the axial direction in a direction along a diagonal direction toward the through holes 41 shifted by one row with respect to the through holes 41 in different columns. That is, the axial direction of the first guide pin 52 is arranged to extend along the tangential direction connecting the surfaces of the tubes of the hairpin heat exchange tube 20 arranged at different positions in the column direction (vertical direction).

  As shown in FIG. 7, the second guide pins 54 are at least two hairpin-shaped heat exchange tubes 20 disposed at different positions in the vertical direction, and exist in a direction different from the first guide pins 52. It has a diameter passing inside the two hairpin-shaped heat exchange tubes 20. The axial direction extends in an oblique direction toward the through holes 41 shifted by one row with respect to the through holes 41 in different columns and along a direction different from the first guide pins 52. That is, the axial direction of the second guide pin 54 is the tangential direction connecting the surfaces of the tubes of the hairpin heat exchange tube 20 disposed at different positions in the column direction (vertical direction) (the axial direction of the first guide pin 52 Is arranged to extend along a tangent direction different from that of

As shown in FIG. 8, a plurality of first guide pins 52 and a plurality of second guide pins 52 are arranged so as to intersect each other when viewed from the front, whereby a lattice-like gap 59 is generated. The hairpin-shaped heat exchange tube 20 is disposed in the gap 59, and the hairpin-shaped heat exchange tube 20 is held.
The gap 59 is set to a size that allows the hairpin heat exchange tube 20 to move freely along the axial direction.

Subsequently, configurations of a first guide pin moving device for moving the first guide pin and a second guide pin moving device for moving the second guide pin will be described.
An upper end portion of the first linear movement guide mounting plate 61 and an upper end portion of the second linear movement guide mounting plate 63 are attached to the upper base 64.
A cylinder device 70 for simultaneously moving the plurality of first guide pins 52 and the plurality of second guide pins 54 is provided at the center of the upper base 64 as viewed from the front and the side.
The cylinder device 70 realizes a first guide pin moving device for moving the first guide pin and a second guide pin moving device for moving the second guide pin in one unit.

The rod 72 of the cylinder device 70 extends downward, the first guide roller 74 is attached to the front side of the tip of the rod 72, and the second guide roller 76 is attached to the back side of the tip of the rod 72 ing.
As the cylinder device 70, an electric actuator, an air cylinder, a hydraulic cylinder or the like can be used.

  In the first guide plate 58, an elongated hole 80 extending in the horizontal direction is formed. In the long hole 80, the first guide roller 74 is disposed so as to be rollable. The elongated hole 80 formed in the first guide plate 58 is formed to extend in the left direction in a front view from the position where the first guide roller 74 is disposed. As a result, when the first guide roller 74 is raised, the elongated hole 80 moves rightward when viewed from the front, that is, the first guide plate moves obliquely upward right when viewed from the front.

  Further, in the second guide plate 57, an elongated hole 82 extending in the horizontal direction is formed. In the long hole 82, the second guide roller 76 is disposed so as to be rollable. The elongated hole 82 formed in the second guide plate 57 is formed to extend from the position where the second guide roller 76 is disposed in the right direction in a front view. As a result, as the second guide roller 76 ascends, the elongated hole 82 moves leftward when viewed from the front, that is, the second guide plate moves diagonally upward left when viewed from the front.

When the cylinder device 70 operates to retract the rod 72, the first guide roller 74 attached to the tip of the rod 72 rolls in the long hole 80, and the first guide plate 58 is inclined obliquely rightward when viewed from the front. It moves upward, that is, along the guide direction of the first linear movement guide 60.
The guide direction of the first linear motion guide 60 coincides with the direction along the axial direction of the first guide pin 52.
For this reason, when the cylinder device 70 operates to retract the rod 72, each first guide pin 52 moves diagonally upward and to the right, as viewed from the front, along the guide direction of the first linear motion guide 60.

When the cylinder device 70 operates to retract the rod 72, the second guide roller 76 attached to the tip of the rod 72 rolls in the long hole 82, and the second guide plate 57 is obliquely left upward when viewed from the front. It moves along the direction, that is, the guide direction of the second linear motion guide 62.
The guide direction of the second linear motion guide 62 coincides with the direction along the axial direction of the second guide pin 54.
For this reason, when the cylinder device 70 operates to retract the rod 72, each second guide pin 54 moves diagonally upward to the left, as viewed from the front, along the guide direction of the second linear motion guide 62.

Further, the guide device is provided movably along the axial direction of the hairpin heat exchange tube 20.
An entire guide moving device 85 for moving the guiding device along the axial direction of the hairpin heat exchange tube 20 is provided on the upper surface of the upper base 64 of the guiding device, and the entire guiding device 50 has a hairpin shape. It moves along the axial direction of the heat exchange tube 20. By thus providing the entire guide moving device 85, the guide device is moved in the direction of the laminated fin 40 or in the direction opposite to the laminated fin 40 along with the insertion of the hairpin-shaped heat exchange tube 20 into the laminated fin 40. Can. For this reason, the hairpin heat exchange tube 20 can always be held at an appropriate position.
A ball screw, a linear actuator or the like can be employed as the entire guide moving device 85.

Also, two guide devices 50 may be disposed along the axial direction of the hairpin heat exchange tube 20. The two guide devices 50 may be independently movable along the axial direction of the hairpin heat exchange tube 20 by the entire guide moving device 85.
By providing the two guide devices 50 in this manner, the heat exchange tube 20 can be held at an appropriate position with respect to the long hairpin heat exchange tube 20, and the hairpin heat exchange tube 20 opens or twists. Can be reliably suppressed. The two guide devices 50 can be moved in the axial direction of the hairpin-shaped heat exchange tube 20 by the entire guide moving device 85, respectively, so that each of the two hairpin-shaped heat exchange tubes 20 is properly adapted according to the insertion situation. Can be held in any position.

(Embodiment of insertion device including guide device)
Next, FIG. 9 shows a plan view of a hairpin-shaped heat exchange tube insertion apparatus (hereinafter simply referred to as an insertion apparatus) using the above-described guide device, and FIG. 10 shows a side view of FIG. Further, the direction in which the laminated fin 40 is viewed from the bent portion 21 of the hairpin heat exchange tube 20 is taken as the front.
In the insertion device 100 of the present embodiment, two guide devices 50A and 50B are provided along the axial direction (insertion direction) of the hairpin heat exchange tube 20. Further, in the present embodiment, a configuration is adopted in which the laminated fin 40 is pressed toward the guide devices 50A and 50B, and the hairpin heat exchange tube 20 is inserted into the through hole 41.

  The two guide devices 50A and 50B may be provided so as to be movable independently of the top plate 86, but the guide device 50B is fixed to the top plate 86, and the entire top plate 86 is fixed. May be movable.

  Further, of the two guide devices, the front surface (the surface on the side away from the laminated fins 40) of the guide device 50B on the side away from the laminated fins 40 (the side closer to the bending portion 21 of the hairpin heat exchange tube 20). The contact portion 88 is provided in contact with the end of the bent portion 21 of the hairpin heat exchange tube 20. The contact portion 88 has a function as a stopper for preventing the movement of the hairpin heat exchange tube 20 so as to fix the position of the hairpin heat exchange tube 20 and to be inserted into the lamination fin 40. The contact portion 88 can be moved in and out of the bent portion 21 of the hairpin heat exchange tube 20 by the clamp device 87. The clamp device 87 is attached to the front side of the first linear motion guide mounting plate 61 of the guide device 50B. Further, the contact portion 88 and the clamp device 87 are provided for each of the plurality of hairpin-shaped heat exchange tubes 20.

In the present embodiment, the temporarily inserted rods 89 are inserted into the respective through holes 41 of the laminated fin 40 in advance. The temporary insertion rod 89 is a cylindrical member having a diameter smaller than that of the through hole 41 so that the through hole 41 can be inserted and removed without expanding the diameter.
The temporarily inserted rod 89 is fixed to the base plate 96 by two positioning plates 90 on the back side of the laminated fin 40 (opposite to the side on which the hairpin heat exchange tube 20 is disposed: the same applies hereinafter).

  The provisionally inserting rod 89 brings the through holes 41 of the plural stacked fins of the laminated fin 40 into straight communication, and contacts the tip of the hairpin heat exchange tube 20 to make the through holes of the hairpin heat exchange tube 20 It has a role of guiding the insertion into the V.41.

The laminated fin 40 is disposed in a state where the temporarily inserted rod 89 is inserted onto the fin receiver 92. The outer end of the fin receiver 92 is provided with an insertion block 94 that abuts on the outer end face of the laminated fin 40.
The fin receiver 92 is movable horizontally with respect to the base plate 96 by the laminated fin moving device 95. A fin receiver 92 is disposed on the base plate 96 via the laminated fin moving device 95.
A ball screw, a linear actuator or the like can be adopted as the laminated fin moving device 95.

  When the laminated fin moving device 95 moves the fin receiver 92 in the direction of the hairpin-shaped heat exchange tube 20, the insertion block 94 presses the back side end face of the laminated fin 40, and the laminated fin 40 has a hairpin-shaped heat exchange tube 20. The hairpin-shaped heat exchange tube 20 which is moved in the direction and fixed so as not to move by the abutment portion 88 is inserted into the through hole 41.

  The insertion device 100 controls the laminated fin moving device 95, the entire guide moving device 85, the cylinder device 70 for moving the first guide pin 52 and the second guide pin 54 of the respective guide devices 50A and 50B, and the contact portion 88. A control unit 46 is provided to execute the entire insertion operation.

  The control unit 46 includes a CPU and memories such as a ROM and a RAM, and outputs control signals to each component to execute an insertion operation based on an operation program set in advance.

(Description of insertion operation)
Next, the insertion operation and the operation of the guide device in the insertion device of the present embodiment will be described based on FIG. 11A to FIG. 11E.
First, it is necessary to temporarily insert the tip of the hairpin heat exchange tube 20 into contact with the tip of the rod 89. In this case, the guide device 50B having a contact portion in contact with the bent portion 21 of the hairpin heat exchange tube 20 may be moved to the laminated fin 40 side with respect to the top plate 86, or the top plate 86 On the other hand, while the guide device 50B is fixed, the entire top plate 86 may be moved to the laminated fin 40 side, and the tip of the hairpin heat exchange tube 20 may be made to abut on the tip of the stick 89 temporarily.

  In FIGS. 11A and 11B, the laminated fin moving device 95 operates so that the insertion block 94 presses the laminated fin 40 and moves it in the direction of the hairpin heat exchange tube 20. The hairpin heat exchange tube 20 is inserted into the through hole 41 of the laminated fin 40 while being guided by the two guide devices 50A and 50B.

As the laminated fin 40 moves, the laminated fin 40 approaches the vicinity of the guide device 50A near the laminated fin 40, so the control unit 46 operates the entire guide moving device 85 to heat exchange the guide device 50A with a hairpin. The tube 20 is moved to the bent portion 21 side.
Although the hairpin-shaped heat exchange tube 20 is held by the first guide pin 52 and the second guide pin 54 in the guide device 50, the heat exchange tube 20 is not inserted into the gap 59 of the first guide pin 52 and the second guide pin 54. Thus, the hairpin-shaped heat exchange tube 20 can move freely. Therefore, the guide device 50A can move the hairpin-shaped heat exchange tube 20 to the bending portion 21 side of the hairpin-shaped heat exchange tube 20 while guiding the hairpin-shaped heat exchange tube 20 by the first guide pin 52 and the second guide pin 54. .

FIG. 11C shows that the guide of the hairpin heat exchange tube 20 by the first guide pin 52 and the second guide pin 54 of the guide device 50A is released.
The control unit 46 controls the entire guide moving device 85 to stop the moving operation of the guide device 50A at a timing before the guide device 50A abuts on the other guide device 50B.

  Then, the control unit 46 controls the cylinder device 70 of the guide device 50A so that the stacking fin 40 does not abut on the first guide pin 52 and the second guide pin 54 of the guide device 50A. The second guide pin 54 is moved to release the guide of the hairpin heat exchange tube 20 of the guide device 50A.

  In each of the guide devices 50, the first guide pin 52 and the second guide pin 54 are positioned above the laminated fin 40 in a state in which the first guide pin 52 and the second guide pin 54 are moved upward (retracted upward as the laminated fin 40 approaches). Is set at the height position where

FIG. 11D shows that the laminated fin 40 has reached the position of the guide device 50B.
At this time, the control unit 46 controls the cylinder device 70 of the guide device 50B so that the stacking fin 40 does not abut on the first guide pin 52 and the second guide pin 54 of the guide device 50B. The second guide pin 54 is moved to release the guide of the hairpin heat exchange tube 20 of the guide device 50B.

  Moreover, in the state of this FIG. 11D, insertion of the hairpin-like heat exchange tube 20 to the lamination | stacking fin 40 is complete | finished. For this reason, the control unit 46 controls the clamp device 87 to move the contact portion 88 in the direction away from the bending portion 21 of the hairpin-shaped heat exchange tube 20, thereby fixing the position of the hairpin-shaped heat exchange tube 20. To release.

  In FIG. 11E, the laminated fin 40 into which the hairpin-shaped heat exchange tube 20 is inserted can be transported to a later process.

(Operation explanation in case of insertion error of hairpin-shaped heat exchange tube)
12A to 12D show the operation in the case where an insertion error occurs while the hairpin heat exchange tube 20 is being inserted into the lamination fin 40.
The insertion error refers to a case where the hairpin-shaped heat exchange tube 20 has a large insertion resistance during insertion into the lamination fin 40 or can not be inserted any more. The detection of the insertion error can be determined by the control unit 46 detecting the pressure applied to the contact portion 88.

  When the control unit 46 detects that the pressure applied to any one of the plurality of contact portions 88 has become equal to or higher than a predetermined value, the control unit 46 has a hairpin shape that is fixed in position by the contact portions 88. It is determined that the heat exchange tube 20 is inserted incorrectly. Then, the control unit 46 controls the clamp device 87 that fixes the position of the hairpin-shaped heat exchange tube 20 determined to be an insertion error to separate the abutting portion 88 from the bent portion 21 of the hairpin-shaped heat exchange tube 20 To move the hairpin heat exchange tube 20 in place.

The control unit 46 does not release the position fixing of the hairpin-shaped heat exchange tube 20 by the abutments 88 for a plurality of abutments 88 in which an insertion error has not occurred.
Then, the control unit 46 causes the operation of the laminated fin moving device 95 to be executed as it is without stopping the fixing of the hairpin-shaped heat exchange tube 20 even after the position fixing is released. Then, the insertion operation is performed on the hairpin heat exchange tube 20 in which the insertion error does not occur.

In FIG. 12B, the laminated fin moving device 95 operates even after the position fixing of the hairpin-shaped heat exchange tube 20 in which there is an insertion error, and the insertion block 94 presses the laminated fin 40, and the direction of the hairpin-shaped heat exchange tube 20 It shows where you are moving to
With regard to the hairpin-shaped heat exchange tube 20 in which the insertion error has occurred, the contact portion 88 is moved to release the fixed position, so the hairpin-shaped heat exchange tube 20 is inserted into the laminated fin 40 more The laminated fin 40 and the hairpin-shaped heat exchange tube 20 are integrally moved as it is by the laminated fin moving device 95 to the right in the drawing. On the other hand, with regard to the hairpin-shaped heat exchange tube 20 in which there was no insertion error, the contact portion 88 is fixed in position as it is, and therefore, it is inserted into the laminated fin 40.

  Further, since the laminated fin 40 approaches the vicinity of the guide device 50A on the side closer to the laminated fin 40, the control unit 46 operates the entire guide moving device 85 to bend the guide device 50A in the heat exchange tube 20 having a hairpin shape. Move to 21 side.

FIG. 12C shows that the guide of the hairpin heat exchange tube 20 by the first guide pin 52 and the second guide pin 54 of the guide device 50A is released.
The control unit 46 controls the entire guide moving device 85 to stop the moving operation of the guide device 50A at a timing before the guide device 50A abuts on the other guide device 50B.

  Then, the control unit 46 controls the cylinder device 70 of the guide device 50A so that the stacking fin 40 does not abut on the first guide pin 52 and the second guide pin 54 of the guide device 50A. The second guide pin 54 is moved to release the guide of the hairpin heat exchange tube 20 of the guide device 50A.

FIG. 12D shows that the laminated fin 40 has reached the position of the guide device 50B.
At this time, the control unit 46 controls the cylinder device 70 of the guide device 50B so that the stacking fin 40 does not abut on the first guide pin 52 and the second guide pin 54 of the guide device 50B. The second guide pin 54 is moved to release the guide of the hairpin heat exchange tube 20 of the guide device 50B.

  Further, in the state of FIG. 12D, the movement of the laminated fin 40 and the hairpin-shaped heat exchange tube 20 ends, and the laminated fin is moved to the step of removing the hairpin-shaped heat exchange tube 20 again.

  As described above, even if there is an insertion error of the hairpin-shaped heat exchange tube 20, according to the insertion device of the present embodiment, the operation of each of the guide devices 50A and 50B is also the same operation as the normal insertion operation. The hairpin-shaped heat exchange tube 20 in which the insertion error has occurred remains inserted halfway, and the other hairpin-shaped heat exchange tubes 20 can take out the laminated fin 40 in a state in which the insertion is completed.

Further, in the embodiment of the insertion device described above, the example in which two guide devices are provided has been described.
However, the number of guide devices is not limited to two, and may be an insertion device provided with three or more guide devices.

(Description of insertion operation to move the hairpin-shaped heat exchange tube side)
Further, instead of moving the laminated fin 40 to the hairpin-shaped heat exchange tube 20 side, the hairpin-shaped heat exchange tube 20 is moved to the laminated fin 40 side to insert the hairpin-shaped heat exchange tube 20 into the laminated fin 40 You may Hereinafter, the operation in the case of moving the hairpin-shaped heat exchange tube 20 to the laminated fin 40 side and inserting it will be described.

  In this case, the entire guide moving device 85 moves the contact portion 88 which is the contact portion, that is, moves the guide device 50B to which the contact portion 88 is attached to the laminated fin 40 side. The contact portion 88 presses the hairpin-shaped heat exchange tube 20 to the laminated fin 40 side.

In addition, as operation | movement of the guide whole movement apparatus 85, when pressing the heat exchange tube 20 of a hairpin shape, you may operate the guide apparatus 50B with respect to the top plate 86, and a guide with respect to the top plate 86. The position of the device 50B may be fixed, and the entire top plate 86 may be moved to the laminated fin 40 side.
However, in any case, there is no change in that the guide device 50B moves to the laminated fin 40 to press the hairpin heat exchange tube 20.

  Along with the insertion operation of the hairpin-shaped heat exchange tube 20 by the entire guide moving device 85, the control unit 46 keeps the base plate 96 in the back direction of the laminated fin 40 (the hairpin-shaped heat exchange tube 20 Move in the opposite direction to the side where the Thus, the temporarily inserted rod 89 pressed by the hairpin heat exchange tube 20 can be extracted to the back side of the laminated fin 40.

  The guide device 50A on the side closer to the laminated fin 40 balances the holding position of the heat exchange tube 20 having a hairpin shape as the guide device 50B provided with the abutting portion 88 moves to the laminated fin 40 side. The control unit 46 operates the entire guide moving device 85 to move toward the guide device 50B.

Further, the guide device 50A on the side closer to the laminated fin 40 is a guide of the hairpin-shaped heat exchange tube 20 by the first guide pin 52 and the second guide pin 54 at a position where it is sandwiched between the laminated fin 40 and the guide device 50B. Release
Furthermore, the control unit 46 controls the entire guide moving device 85 so that the guide device 50A is positioned above the stacking fin 40, and causes the other guide device 50B to approach the stacking fin 40.

Then, when the guide device 50B approaches the stacking fin 40, the control unit 46 releases the guide of the hairpin heat exchange tube 20 of the first guide pin 52 and the second guide pin 54.
Then, when the insertion of the hairpin-shaped heat exchange tube 20 into the laminated fin 40 is completed, the control unit 46 controls the clamp device 87 to separate the abutting portion 88 from the bent portion 21 of the hairpin-shaped heat exchange tube 20 The heat transfer tube 20 is released from the pressure, and the laminated fin 40 into which the heat transfer tube 20 having the hairpin shape is inserted is brought into a state where it can be transported to a later step.

  When the hairpin-shaped heat exchange tube 20 is moved to the stacking fin 40 and an insertion error occurs in the hairpin-shaped heat exchange tube, the control unit 46 detects the insertion error on the contact portion 88. It can be determined by detecting the pressure.

  When the control unit 46 detects that the pressure applied to any one of the plurality of contact portions 88 has become equal to or higher than a predetermined value, the hairpin-shaped thermal pressure being pressed by the contact portions 88 It is determined that the insertion error of the replacement tube 20 has occurred. Then, the control unit 46 controls the clamp device 87 pressing the hairpin-shaped heat exchange tube 20 determined to be an insertion error to separate the contact portion 88 from the bent portion 21 of the hairpin-shaped heat exchange tube 20 And the pressing of the hairpin heat exchange tube 20 is released.

The control unit 46 does not release the pressing of the hairpin-shaped heat exchange tube 20 by the contact portion 88 for a plurality of contact portions 88 in which an insertion error has not occurred.
Then, even after the position fixing of the hairpin-shaped heat exchange tube 20 is released, the control unit 46 causes the hairpin-shaped heat exchange tube 20 to be inserted without stopping the operation of the entire guide moving device 85. Then, the insertion operation is performed on the hairpin heat exchange tube 20 in which the insertion error does not occur.

  When the insertion of the hairpin-shaped heat exchange tube 20 without insertion error into the lamination fin 40 is completed, the movement of the hairpin-shaped heat exchange tube 20 into the lamination fin 40 is ended, and the hairpin-shaped heat with another insertion mistake The laminated fin is moved to the process of removing the replacement tube 20.

  Thus, even if there is an insertion error of the hairpin-shaped heat exchange tube 20, the operation of each of the guide devices 50A, 50B is also the same operation as the operation at the time of the normal insertion, and the heat of the hairpin The exchange tube 20 remains partially inserted, and the other hairpin-shaped heat exchange tubes 20 can take out the laminated fins 40 in a state in which the insertion is completed.

  In each of the above-described embodiments, the through holes 41 in the laminated fins 40 may be formed in a plurality of rows, and the through holes 41 may be arranged even if they are not arranged in a zigzag.

In each embodiment described above, the through hole 41 of the laminated fin 40 is directed in the horizontal direction, and the axial direction of the hairpin heat exchange tube 20 is also directed in the horizontal direction. However, the laminated fin 40 is laminated in the vertical direction, and the through holes 41 are directed in the vertical direction, and the hairpin heat exchange tube 20 or the laminated fin 40 is relatively moved in the vertical direction to make the laminated fin 40 a hairpin The heat exchange tube 20 may be inserted.
In this case, the first guide pin 52 and the second guide pin 54 are arranged to be movable in the horizontal direction in the horizontal plane.

  Although the preferred embodiments of the present invention have been described above in various manners, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. .

Claims (12)

A guide device for holding a hairpin-shaped heat exchange tube, which is used when inserting a hairpin-shaped heat exchange tube into a through hole of a laminated fin for a heat exchanger,
The through holes of the laminated fins are formed in a plurality of rows,
A first guide portion provided with a plurality of first guide pins whose axial directions extend in a direction along an oblique direction toward the through holes which are offset by one row with respect to the through holes of different columns;
A plurality of second guide pins are provided for the through holes of different rows, the axial direction extending in the direction along the oblique direction toward the through holes shifted by one row in the opposite direction to the oblique direction. The second guide section,
A first guide pin moving device for moving the first guide portion along an axial direction of the first guide pin;
And a second guide pin moving device for moving the second guide portion along the axial direction of the second guide pin,
A hairpin-shaped heat exchange tube guiding device characterized in that a hairpin-shaped heat exchange tube is held in a gap between each of the first guide pins and each of the second guide pins. The first guide pin moving device and the second guide pin moving device are attached to one rod, a first guide roller attached to one surface of the tip of the rod, and the other surface of the tip of the rod Shared by one cylinder device having a second guide roller,
The first guide portion has a first guide plate to which each of the first guide pins is attached, and the first guide plate is provided with a first guide plate along a direction orthogonal to the protruding and inserting direction of the rod of the cylinder device 1 guide groove is formed, and the first guide roller is disposed in the first guide groove,
The second guide portion has a second guide plate to which each of the second guide pins is attached, and the second guide plate is disposed at a position opposite to the first guide plate with the rod interposed therebetween. A second guide groove is formed in the second guide plate along a direction orthogonal to the protruding and entering direction of the rod of the cylinder device, and the second guide roller is disposed in the second guide groove The hairpin heat exchange tube guide device according to claim 1, wherein the guide device is a hairpin heat exchange tube.   The guide device for a hairpin-shaped heat exchange tube according to claim 1 or 2, further comprising: an entire guide moving device for moving the guide device along the axial direction of the hairpin-shaped heat exchange tube. An insertion device for inserting a hairpin heat exchange tube into a through hole of a laminated fin for a heat exchanger in which through holes are formed in a plurality of rows,
A first guide portion provided with a plurality of first guide pins whose axial direction extends in a direction along an oblique direction toward the through holes which are offset by one row with respect to the through holes of different columns; A second guide provided with a plurality of second guide pins, the axial direction of which extends in the direction along the diagonal direction toward the through hole shifted by one row in the opposite direction to the oblique direction with respect to the through hole. And a first guide pin moving device for moving the first guide portion along the axial direction of the first guide pin, and a second for moving the second guide portion along the axial direction of the second guide pin And a guide device having a guide pin moving device for holding the hairpin heat exchange tube in the gap between each of the first guide pins and each of the second guide pins along the axial direction of the hairpin heat exchange tube. Multiple units,
A plurality of contact portions that are in contact with bent portions which are bent portions of the hairpin heat exchange tube held by the respective guide devices;
The laminated fin is placed such that the through hole faces the guide device side, and a fin receiver having an insertion block that abuts on the end face of the laminated fin to be placed in the direction opposite to the guide device side is provided.
A contact / separation device is provided for inserting the hairpin-shaped heat exchange tube into the through hole of the laminated fin by relatively moving the fin receiver and the contact portion in contact with each other. A hairpin-shaped heat exchange tube insertion device. The contact / separation device is
5. The hairpin-shaped heat exchange tube inserting apparatus according to claim 4, wherein the apparatus is a laminated fin moving apparatus for moving the fin receiver to the guide apparatus side. The contact / separation device is
The hairpin-shaped heat exchange tube insertion device according to claim 4, characterized in that it is a butt-portion moving device for moving each of the contact portions along the axial direction of the hairpin-shaped heat exchange tube. The contact / separation device is a laminated fin moving device that moves the fin receiver to the guide device side, and
The abutting portion is positioned on the bending portion side of the hairpin-shaped heat exchange tube among the plurality of guide devices as a stopper for fixing the bending portion of the abutting hairpin-shaped heat exchange tube at that position. The position of the hairpin-shaped heat exchange tube holding in each of the guide devices other than the guide device provided with the abutting portion and the contact portion is the insertion state of the hairpin-shaped heat exchange tube into the laminated fin 6. The hairpin-shaped heat exchange tube according to claim 5, further comprising: an entire guide moving device for moving each of the guide devices along the axial direction of the hairpin-shaped heat exchange tube so as to move in accordance with Insertion device. Controlling the laminated fin moving device so as to move the laminated fin toward each of the guide devices;
After moving the laminated fin in the direction of each of the guide devices, one of the plurality of guide devices, one of the guide devices positioned on the laminated fin side, does not abut the moved laminated fin on the laminated fin side. Controlling the entire guide moving device so as to move one of the guide devices located to the bent side of the hairpin heat exchange tube;
After moving the one guide device to the bending portion side of the hairpin-shaped heat exchange tube, the movement of the one guide device is stopped so that the one guide device does not abut on the other guide device. Control the entire guide moving device,
By the first guide pin and the second guide pin of the one guide device so that the moving laminated fin does not abut on the first guide pin and the second guide pin of the one guide device Controlling the first guide pin moving device and the second guide pin moving device of the one guide device so as to release the guide of the hairpin heat exchange tube at a predetermined timing;
By the first guide pin and the second guide pin of the other guide device so that the moving laminated fin does not abut on the first guide pin and the second guide pin of the other guide device Controlling the first guide pin moving device and the second guide pin moving device of the other guide device so as to release the guide of the hairpin heat exchange tube at a predetermined timing;
A control unit is provided, which is controlled to release the position fixing of the hairpin heat exchange tube by the contact portion after the insertion of the hairpin heat exchange tube into the laminated fin is completed. Item 8. A hairpin-shaped heat exchange tube inserting apparatus according to Item 7. The control unit
The insertion error of the hairpin heat exchange tube is determined based on the pressure applied to each of the contact portions,
Among the plurality of contact portions, the position fixing of the contact portion in contact with the hairpin-shaped heat exchange tube determined to be an insertion error is released, and the moving operation of the laminated fin moving device is continued as it is Control
After moving the laminated fin in the direction of each of the guide devices, one of the plurality of guide devices, one of the guide devices positioned on the laminated fin side, does not abut the moved laminated fin on the laminated fin side. Controlling the entire guide moving device so as to move one of the guide devices located to the bent side of the hairpin heat exchange tube;
After moving the one guide device to the bending portion side of the hairpin-shaped heat exchange tube, the movement of the one guide device is stopped so that the one guide device does not abut on the other guide device. Control the entire guide moving device,
By the first guide pin and the second guide pin of the one guide device so that the moving laminated fin does not abut on the first guide pin and the second guide pin of the one guide device Controlling the first guide pin moving device and the second guide pin moving device of the one guide device so as to release the guide of the hairpin heat exchange tube at a predetermined timing;
By the first guide pin and the second guide pin of the other guide device so that the moving laminated fin does not abut on the first guide pin and the second guide pin of the other guide device 9. The apparatus according to claim 8, wherein the first guide pin moving device and the second guide pin moving device of the other guide device are controlled so as to release the guide of the hairpin heat exchange tube at a predetermined timing. Hairpin-shaped heat exchange tube insertion device. The contact / separation device is a contact portion moving device that moves each contact portion along an axial direction of a hairpin-shaped heat exchange tube,
The contact portion is provided to the other of the plurality of guide devices positioned on the bending portion side of the hairpin-shaped heat exchange tube,
The contact portion moving device moves the other guide device located on the bent side of the hairpin heat exchange tube along the axial direction of the hairpin heat exchange tube and is located on the laminated fin side Each of the guide devices is a heat transfer tube of the hairpin shape so as to move the position of holding the hairpin heat exchange tube in one guide device according to the insertion state of the hairpin heat exchange tube into the laminated fin. The hairpin-like heat exchange tube insertion device according to claim 6, characterized in that it is a guide whole moving device for moving along an axial direction. The entire guide moving device is controlled such that the hairpin-shaped heat exchange tube is moved toward the laminated fin by pressing the hairpin-shaped heat exchange tube by the contact portion;
After moving the hairpin-shaped heat exchange tube in the direction of the laminated fin, one of the plurality of guide devices located on the laminated fin side is not in contact with the laminated fin and the other guide device. And the first guide pin moving device of the one guide device to release the guide of the hairpin-shaped heat exchange tube by the first guide pin and the second guide pin of the one guide device at a predetermined timing. And controlling the second guide pin moving device,
Heat exchange like a hairpin by the first guide pin and the second guide pin of the other guide device so that the first guide pin and the second guide pin of the other guide device do not abut on the laminated fin Controlling the first guide pin moving device and the second guide pin moving device of the other guide device so as to release the guide of the tube at a predetermined timing;
A control unit is provided to perform control to release the contact of the hairpin-shaped heat exchange tube with the bent portion of the hairpin-shaped heat exchange tube by the contact portion after the insertion of the hairpin-shaped heat exchange tube into the laminated fin is completed. The hairpin heat exchanger tube insertion device according to claim 10, characterized in that: The control unit
The insertion error of the hairpin heat exchange tube is determined based on the pressure applied to each of the contact portions,
Among the plurality of contact portions, the contact portion of the contact portion that is in contact with the hairpin-shaped heat exchange tube determined to be an insertion error is released, and the moving operation of the entire guide moving device is continued as it is Control
After moving the hairpin-shaped heat exchange tube in the direction of the laminated fin, one of the plurality of guide devices located on the laminated fin side is not in contact with the laminated fin and the other guide device. And the first guide pin moving device of the one guide device to release the guide of the hairpin-shaped heat exchange tube by the first guide pin and the second guide pin of the one guide device at a predetermined timing. And controlling the second guide pin moving device,
Heat exchange like a hairpin by the first guide pin and the second guide pin of the other guide device so that the first guide pin and the second guide pin of the other guide device do not abut on the laminated fin Controlling the first guide pin moving device and the second guide pin moving device of the other guide device so as to release the guide of the tube at a predetermined timing;
11. The method according to claim 11, wherein after the insertion of the hairpin-shaped heat exchange tube into the laminated fin is completed, control is performed to release the contact of the hairpin-shaped heat exchange tube with the bent portion of the hairpin-shaped heat exchange tube. A hairpin-shaped heat exchange tube insertion device as described above.

Images