KR20210147870A - Heat exchange tube alignment device - Google Patents

Abstract

The present invention aims to provide a configuration of a heat exchange tube alignment apparatus which is able to move and mount heat exchange tubes laminated in a horizontal direction with a front end of a leg unit positioned from a stock apparatus while keeping the horizontal direction. The heat exchange tube alignment apparatus (100) comprises: a first alignment apparatus (10) laminated so that two leg units (24) of a heat exchange tube (20) formed in a hairpin shape are placed horizontally to a floor plate (16) by a guide frame (14) installed by standing on the floor plate (16); an elevation apparatus (52) elevating and lowering the floor plate (16); and a second alignment apparatus (30) including an insertion instrument (32) inserting the heat exchange tube (20) on the uppermost position of the floor plate (16) into a mounting unit (31), an insertion guide (33) placed on the mounting unit (31) and guiding the outer circumferential surface of the leg units (24) of the heat exchange tube (20), and making the gaps between the leg units (24) uniform, a positioning unit (34) positioning the heat exchange tubes during or after the insertion process, and a mounting unit moving unit (35) moving the mounting unit (31) to a certain position.

Description

HEAT EXCHANGE TUBE ALIGNMENT DEVICE

In the present invention, when a heat exchange tube is inserted into a stack of fins for a heat exchanger, in a state in which the tips of the two legs are aligned from the first aligning device, which is a stock device of the heat exchange tube formed in the shape of a hairpin by a bender, the second It relates to a heat exchange tube alignment device for transfer to the alignment device.

A heat exchanger in an air conditioner or the like is formed by passing a heat exchange tube for allowing a heat medium to flow through a laminate of heat exchanger fins. In the stack of heat exchanger fins, a plurality of heat exchanger fins formed by a press mold device are stacked on a stack device in which the stack fins are erected, and then taken out from the stack device, and a heat exchange tube is inserted through the stack fins instead of the stack fins. In addition, the heat exchange tube is formed in a so-called hairpin shape having a flat U-shape in plan view by a bender, and the heat exchange tube taken out from the bender is set in the heat exchange tube stock device by the operator, and the position of the heat exchange tube insertion device After being conveyed to the heat exchange tube, the heat exchange tube is taken out individually from the heat exchange tube stock device. As a heat exchanger manufacturing apparatus provided with such a heat exchange tube stock apparatus and a heat exchange tube insertion apparatus, the structure as disclosed by patent document 1 (Unexamined-Japanese-Patent No. 6-15393) is known, for example.

Japanese Patent Application Laid-Open No. 6-15393 (Specification paragraph 0014-0016; Figs. 4, 11, etc.)

The heat exchange tube molded by the bender has non-uniformity in the position of the tip end of the leg part due to tolerance or the like. When the heat exchange tube becomes long, the degree of non-uniformity in the position of the tip portion also increases. Moreover, as shown in FIG. 22, the heat exchanger manufacturing apparatus 500 disclosed by patent document 1 has a structure in which the heat exchange tube 520 is inserted in the laminated body 510 of the fins for heat exchangers in a height direction. For this reason, when the heat exchange tube 520 becomes long, the height dimension of the heat exchanger manufacturing apparatus 500 also increases, and there exists a subject that a problem arises in points, such as operability and maintenance.

Therefore, the present invention has been made to solve the above problems, and its purpose is to stock the hairpin-shaped heat exchange tube after being taken out from the bender in the horizontal direction, while maintaining the horizontal state of the uppermost heat exchange tube. It is to provide the heat exchange tube aligning apparatus which can suppress a height dimension by making it possible to insert into the laminated body of the fins for heat exchangers in the state which made the position of the front-end|tip part of a sieve part aligned.

As a result of the inventor earnestly researching in order to solve the said subject, it came up with the following structures. That is, according to the present invention, two leg portions of a heat exchange tube formed in a hairpin shape inserted into a fin for a heat exchanger are positioned horizontally, a bottom plate on which a plurality of heat exchange tubes are stacked in the vertical direction, and the bottom plate is erected and installed, A first alignment device having a guide body for guiding the stacking direction of the heat exchange tubes, and a lifting device for raising and lowering the bottom plate so that the heat exchange tube positioned at the top of the plurality of stacked heat exchange tubes is always positioned at a predetermined height and an inlet mechanism for introducing the heat exchange tube located at the uppermost part of the plurality of stacked heat exchange tubes in the first alignment device, and guiding the outer circumferential surface of each leg of the heat exchange tube introduced by the pull-in mechanism; In addition, between the lead-in guide for aligning the distance between the leg portions of the heat exchange tube with the through-hole pitch of the heat exchanger fin to be inserted, and the leg portion of the heat exchange tube during or after the pull-in is completed by the pull-in mechanism A heat exchange tube aligning device comprising: a positioning unit entering and positioning the heat exchange tube; a mounting table having at least the inlet guide and the positioning unit; and a second alignment device having a mounting table moving unit moving to a predetermined position. .

Thereby, the hairpin-shaped heat exchange tube after being taken out from the bender is stocked in the horizontal direction, and the heat exchanger fins are stacked in a state where the position of the tip end of the leg is aligned while maintaining the horizontal state of the uppermost heat exchange tube. By enabling insertion into a sieve, a height dimension can be suppressed and the insertion operation|work of a heat exchanger tube to the laminated body of the fins for heat exchangers can be performed easily and reliably.

It is also preferable that the lifting device is a part of the first alignment device or the second alignment device.

Thereby, the structure of an elevating apparatus can be made compact. In particular, when it is set as a part of the first alignment device, the lamination operation by the operator of the heat exchange tube manufactured by the vendor can be easily performed.

In addition, it is preferable that the inlet guide is a roller, and it is more preferable that a contact surface of the roller with the heat exchange tube is formed in an arc shape.

Thereby, the heat exchange tube can be drawn in to the predetermined position of a mounting table smoothly, without injuring a heat exchange tube.

In addition, it is preferable that only one leg portion of the heat exchange tube is in contact with the roller.

Thereby, the roller can be rotated only in one direction, and the guide at the time of drawing out and sending can be performed smoothly without damaging the leg part of a heat exchange tube at the time of conveyance of a heat exchange tube.

Moreover, it is preferable that the said lead-in guide and the said positioning part form a pair, and it is arrange|positioned at the plurality of places in the drawing-in direction of the said heat exchange tube of the said mounting table.

Thereby, even when the heat exchange tube taken out from the 1st alignment device is long, it can be reliably fixed and held in the predetermined position of a mounting table with the front-end|tip position of a leg part aligned.

In addition, it is preferable that the first alignment device is mounted on the bogie.

Thereby, even if the position of a bender and a heat exchange tube insertion device are separated, the heat exchange tube laminated|stacked on the 1st aligning apparatus can be conveyed easily.

By adopting the configuration of the heat exchange tube aligning device according to the present invention, the hairpin-shaped heat exchange tube after being taken out from the bender is turned horizontally and stocked, and the tip of the leg is positioned while maintaining the horizontal state of the uppermost heat exchange tube. By making it possible to insert into the stack of heat exchanger fins in a state in which the fins are aligned, the height dimension is suppressed, and the insertion operation of the heat exchange tube into the stack of heat exchanger fins can be performed easily and reliably. And even if it is a long heat exchange tube, while the operation|movement of the operator to move from a bender to a 1st alignment device becomes easy, the height dimension of the 1st alignment device which is a stock device of a heat exchange tube can be suppressed low.

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which shows schematic structure of the heat exchanger manufacturing apparatus in this embodiment.
It is a front view which shows schematic structure of the heat exchange tube aligning apparatus in the heat exchanger manufacturing apparatus of this embodiment.
Fig. 3 is an enlarged view of part III in Fig. 1;
Fig. 4A is a cross-sectional view taken along the line IV-A in Fig. 3, and Fig. 4B is a cross-sectional view taken along the line IV-B in Fig. 3 .
It is a perspective view of the heat exchanger manufactured with the heat exchanger manufacturing apparatus in this embodiment.
It is a flowchart which shows schematic process in the heat exchanger manufacturing method in this embodiment.
Fig. 7 is a flowchart showing a schematic process continuing from Fig. 6;
Fig. 8 is a front view showing a state in which the heat exchange tube stacking cart as the first alignment device is set at a predetermined position of the heat exchange tube alignment device.
9 is a front view showing a state in which the bottom plate on which the heat exchange tubes are laminated is raised to a predetermined height position with respect to the mounting table.
10 is a front view showing a state in which the inlet part is brought close to the heat exchange tube at the top of the stacked heat exchange tubes.
Fig. 11 is a front view showing a state in which the heat exchange tube is withdrawn from the bottom plate to the mounting table by the first locking port.
It is an enlarged explanatory drawing which shows the operation|movement of the lead-in part from the taking-out process of a heat exchange tube by a 1st latching port to sliding a heat exchange tube by a 2nd latching port.
Fig. 13 is a front view showing a state in which the heat exchange tube is slid to the mounting table by the second locking port.
It is a front view which shows the state which protruded the positioning part embedded in the mounting table from the upper surface of the mounting table.
15 is a front view showing a state in which the inlet part is separated from the heat exchange tube in the height direction.
16 is a plan view showing a state in which the mounting table on which the heat exchange tube is moved slides in the horizontal direction.
Fig. 17 is an explanatory diagram directed in the direction of the arrow from the position of the line XVII-XVII in Fig. 16 .
It is explanatory drawing which shows the state in which the positioning part of a mounting table is embedded in the mounting table during the insertion process of the heat exchange tube into the fin for heat exchangers by a heat exchange tube insertion apparatus.
It is explanatory drawing which shows the state which the insertion process of the heat exchanger tube by the heat exchange tube insertion device into the laminated body of the fins for heat exchangers is completed.
20 is a plan view showing a state in which the mounting table is returned to a position before insertion of the heat exchange tube.
Fig. 21 is a front view showing a state in which the lead-in unit has returned to its original position;
It is a front view which shows the stock apparatus of the heat exchange tube in a prior art.

Hereinafter, the embodiment of the heat exchange tube aligning apparatus 100 which concerns on this invention and the heat exchanger manufacturing apparatus 200 which has the same is demonstrated. 1, the heat exchange tube aligning apparatus 100 in this embodiment is a part of the heat exchanger manufacturing apparatus 200, The heat exchanger manufacturing apparatus 200 is the heat exchange tube aligning apparatus 100 and a heat exchange tube. It has an insertion device 300 . As shown in FIG. 2 , the heat exchange tube aligning device 100 includes a first aligning device 10 , a second aligning device 30 serving as a moving destination of the heat exchange tube 20 of the first aligning device 10 , and an operation control unit. (MC) is provided. In the present embodiment, the operation control unit MC of the heat exchange tube aligning apparatus 100 also controls the operation of the heat exchange tube insertion apparatus 300 , and consequently, the operation control unit MC controls the operation of the heat exchanger manufacturing apparatus 200 in the heat exchanger manufacturing apparatus 200 . It controls the operation of all configurations of .

The first alignment device 10 includes a base portion 12 and a plurality of bottom plates 16 with a guide body 14 erected on an upper surface thereof, and a hairpin-shaped heat exchange tube formed by a bender (not shown). (20) is set in the horizontal direction to be laminated and held. The first alignment device 10 in the present embodiment is formed on a bogie in which the casters 13 are arranged on the bottom surface of the base part 12 and the handle 15 is attached to the side surface of the base part 12 . Thus, the operator can move the first alignment device 10 in the horizontal direction by pushing the handle 15 . Here, a plurality of bottom plates 16 on which the guide body 14 is erected are installed in an arrangement on the upper surface of the base part 12 at a required interval.

The heat exchange tube 20 in the present embodiment is formed in a so-called hairpin shape that is bent in the opposite direction (180 degrees) at an intermediate position in the longitudinal direction to form a flat U-shape in plan view, and is attached to the first alignment device 10 . A plurality of heat exchange tubes 20 are stacked and held in one state in the transverse direction. A guide body 14 is erected at a predetermined height on the bottom plate 16 on which the heat exchange tube 20 is mounted, and guides the stacking direction of the heat exchange tube 20 on the bottom plate 16 . The guide body 14 in the present embodiment is positioned on the outer peripheral edge of the designed shape of the heat exchange tube 20 at the outer and inner positions of the folded portion 22 and the leg portion 24 of the heat exchange tube 20 . They are properly arranged and installed.

Although the shape of the heat exchange tube 20 molded by the bender has some non-uniformity with respect to the design shape, heat exchange in a state in which the operator elastically deforms the heat exchange tube 20 appropriately according to the position where the guide body 14 is erected The tube 20 is placed on the bottom plate 16 and laminated. In the bottom plate 16 of the first alignment device 10 in the present embodiment, a plurality of heat exchange tubes 20 are calibrated to a design shape in the planar direction, and the position of the tip of the leg portion 24 is set to a predetermined position. It is kept in an even state. In this way, the heat exchange tube 20 is calibrated to a design shape over a plurality of layers along the guide body 14 on the bottom plate 16, and the position of the tip of the leg part 24 is a stack of heat exchanger fins to be inserted. It is laminated in a state in which positioning is maintained at the through-hole pitch of (FS).

Further, the bottom plate 16 protrudes from both ends of the base portion 12 of the first alignment device 10 . When the first aligning device 10 is set in a first aligning device fixing part 50 to be described later, the first aligning device fixing part 50 is mounted on a lifting plate 54 that is raised and lowered by a lifting device 52 arranged in an arrangement. becomes witty. That is, the bottom plate 16 can be raised/lowered so that it may slide from the base part 12 by the raising/lowering device 52. As shown in FIG. The raising/lowering device 52 can employ|adopt a well-known structure typified by a fluid cylinder, a rack-and-pinion mechanism, etc., and is operation-controlled by operation|movement control part MC.

As shown in FIGS. 1 and 2 , the second alignment device 30 , which is a moving destination of the heat exchange tube 20 stacked and held in the first alignment device 10 , includes a mounting table 31 and a retracting mechanism 32 . , it has a pull-in guide 33 , a positioning unit 34 , and a mounting table moving unit 35 . The mounting table moving unit 35 slides the mounting table 31 between the heat exchange tube aligning device 100 and the heat exchange tube insertion device 300 , and operation is controlled by the operation controller MC. Although the mounting table moving part 35 in this embodiment employ|adopts the structure which has the rack-and-pinion mechanism 35A, the pinion gear drive motor 35B, and the rail 35C, other well-known examples represented by a fluid cylinder etc. are employ|adopted. It is also possible to employ the configuration of

The inlet guide 33 attached to the first attachment plate PL1 is erected on the mounting table 31 , and the positioning unit 34 attached to the second attachment plate PL2 is positioned on the mounting table 31 . It is buried in a state where it can protrude from the upper surface. The lead-in guide 33 is directly attached to the mounting table 31 via the first mounting plate PL1, and the positioning unit 34 is arranged on the mounting table 31 together with the second mounting plate PL2. It is arranged (buried) in a state accommodated in the provided accommodation hole 31A. As shown in FIG. 2 , in the present embodiment, the lead-in guide 33 and the positioning unit 34 form a pair and are required in the longitudinal direction of the heat exchange tube 20 in the mounting table 31 . Although they are arranged in a plurality of places at intervals, the positioning part 34 can also be arranged only in the specific receiving hole 31A. Moreover, it is not necessary to make the lead-in guide 33 and the positioning part 34 into a pair.

As shown in FIG.3 and FIG.4, the lead-in guide 33 in this embodiment is arrange|positioned in two-row arrangement|positioning with a required space|interval. The lead-in guides 33 in the first row that are on the A-A line and the lead-in guides 33 in the second row that are positioned on the B-B line are arranged in the same number and with the same spacing. In addition, the lead-in guide 33 in the first row and the lead-in guide 33 in the second row are arranged so that the left and right end positions on the side orthogonal to the slide direction of the heat exchange tube 20 indicated by the arrow X in FIG. 3 in the horizontal plane are different, respectively. has been In addition, the respective rotational shafts AX1 of the first inlet guide 33 and the respective rotational axes AX2 of the second inlet guide 33 in the first row are perpendicular to the sliding direction of the heat exchange tube 20 in a horizontal plane. The positions are arranged in different arrangements.

By adopting the arrangement of the lead-in guides 33 as described above, only the right leg 24R of the leg parts 24 of the heat exchange tube 20 in the sliding direction is brought into contact with the lead-in guide 33 in the first row. can Moreover, only the left leg part 24L among the leg parts 24 of the heat exchange tube 20 with respect to the sliding direction can be contact|abutted to the lead-in guide 33 of 2nd row. In other words, in each heat exchange tube 20 in the sliding direction, the right leg portion 24R abuts the first row inlet guide 33, and the left leg portion 24L in the sliding direction has 2 It comes into contact with the tenth draw-in guide 33. Only one of the leg portions 24 of the heat exchange tube 20 is in contact with each of the inlet guides 33, and the first inlet guide 33 rotates clockwise, and the second inlet guide 33 rotates clockwise. (33) will rotate either counterclockwise.

Moreover, as shown in FIG. 4, the drawing-in guide 33 in this embodiment is rotatably attached at the height position separated from the upper surface of 1st attachment plate PL1 attached to the upper surface of the mounting table 31 by a predetermined distance. It is made up of rollers. The roller as the lead-in guide 33 is arranged in the same manner as the guide body 14 arranged at the outer position of the heat exchange tube 20 in the first alignment device 10, and is arranged on the outer surface of the heat exchange tube 20 and 33A of abutment surfaces are formed in a circular arc shape. When the heat exchange tube 20 is drawn out from the first alignment device 10 toward the mounting table 31 by the inlet portion 39 of the inlet mechanism 32, the Guided to a predetermined planar position. In addition, although the positioning part 34 in this embodiment can be comprised with a fluid cylinder, it is not limited to a fluid cylinder. The operation of the positioning unit 34 protruding from the upper surface of the mounting table 31 is controlled by the operation control unit MC.

The inlet portion 39 is connected to the horizontal driving unit 36 , and is movable along the guide rail 37 extending in the longitudinal direction of the heat exchange tube 20 at a position above the mounting table 31 . In addition, the inlet portion 39 is also connected to the vertical drive unit 38 , and can move vertically from the guide rail 37 to the lower surface side. That is, the inlet portion 39 is capable of sliding in the height direction on the heat exchange tube 20 stacked on the first alignment device 10 , and the heat exchange tube 20 stacked on the first alignment device 10 . ), it is possible to slide to the second alignment device 30 without changing the posture of the heat exchange tube 20 .

The lead-in part 39 in this embodiment has the 1st latching port 39A and the 2nd latching port 39B from which the lower end part height position differs. The first locking hole 39A having the required length range of the distal end formed in a cylindrical shape is used when taking out the folded portion 22 of the heat exchange tube 20 from the first alignment device 10 to the side of the mounting table 31 . . The second locking hole 39B having the required length range of the tip portion formed in the shape of the glans is used to slide the heat exchange tube 20 taken out by the first locking hole 39A to the mounting table 31 side. The height position of the reduced diameter portion 39Ba of the second locking port 39B is formed at the same height position as the central height position of the inlet guide 33, and the lower end of the glans-shaped portion has an arc shape and the mounting table It is formed at the same height position as the upper surface height position of (31).

The operation of both the horizontal drive unit 36 and the vertical drive unit 38 described above is controlled by the operation control unit MC. Moreover, the operation control part MC is able to grasp|ascertain the horizontal position of the lead-in part 39 in real time by the operation control content to the horizontal direction drive part 36. As shown in FIG. Although the fluid cylinder is used for the horizontal drive part 36 and the up-down direction drive part 38 in this embodiment, the horizontal direction drive part 36 and the up-down direction drive part 38 are not limited to this structure. In addition, an anti-slip friction sheet (not shown) may be attached to the portion where the inlet portion 39 (at least one of the first locking hole 39A and the second locking hole 39B) is in contact with the heat exchange tube 20 . have.

The heat exchange tube insertion apparatus 300 in this embodiment slides the heat exchange tube 20 moved to the mounting table 31 toward the stacked body FS of the fins for heat exchangers. Specifically, the guide portion 302 arranged parallel to the guide rail 37, the abutting body holding portion 304 extending in a direction perpendicular to the guide portion 302 in a horizontal plane, and the abutting body holding portion ( It has the abutting body 305 hold|maintained by 304, and the drive part 306 for insertion which reciprocates the abutment body holding|maintenance part 304 in the longitudinal direction of the heat exchange tube 20 (refer FIG. 16). The flat shape of the abutting body 305 is preferably formed to follow the shape of the folded portion 22 of the heat exchange tube 20 . The operation of the heat exchange tube insertion device 300 is controlled by the operation controller MC.

The operation control unit MC moves the mounting table 31 from the heat exchange tube aligning device 100 to the heat exchange tube insertion device 300 by the mounting table moving unit 35 , and then operates the heat exchange tube insertion device 300 . and inserts the heat exchange tube 20 into the stack of fins for the heat exchanger (FS) held by the fin stack holder (FH) for the heat exchanger. Here, after inserting the tip of the leg portion 24 of the heat exchange tube 20 into the guide pin GP inserted in the through hole of the stack of heat exchanger fins FS in advance, the guide pin is inserted into the heat exchange tube 20 . The heat exchange tube 20 is inserted in the through hole of the laminated body FS of the fins for heat exchangers so that GP is pushed out from the laminated body FS of the fins for heat exchangers. In this way, the heat exchanger HEX as shown in FIG. 5 is manufactured. Since the insertion method of the heat exchange tube 20 into the through hole of the laminated body FS of the fins for heat exchangers using the guide fin GP is well-known, detailed description here is abbreviate|omitted.

At this time, the operation control unit MC detects the position of the folded portion 22 of the heat exchange tube 20 by the heat exchange tube insertion device 300 , and the folded portion 22 of the heat exchange tube 20 is placed on the mounting table. The positioning part 34 is embedded in the mounting table 31 just before reaching the predetermined position of 31 (the arrangement position of the positioning part 34). When inserting the heat exchange tube 20 into the stack FS of heat exchanger fins in this way, the heat exchange tube 20 is substantially reduced to a design shape by the inlet guide 33 and the positioning part 34 to the limit. Calibration is performed, and it is inserted into the laminated body FS of the fins for heat exchangers, maintaining the state in which the position of the front-end|tip part of the leg part 24 became aligned. Thereby, even if the heat exchange tube 20 becomes long, the heat exchange tube 20 can be easily and reliably inserted into the laminated body FS of the fins for heat exchangers.

Then, the manufacturing method of the heat exchanger HEX using the heat exchanger manufacturing apparatus 200 in this embodiment is demonstrated. It is a flowchart which shows schematic process in the heat exchanger manufacturing method in this embodiment. Fig. 7 is a flow chart showing a schematic process subsequent to Fig. 6;

As shown in FIG. 8 , the operator places the first alignment device 10 in which a predetermined number of heat exchange tubes 20 formed in a hairpin shape forming a flat U-shape in plan view are stacked at a predetermined position of the heat exchange tube alignment device 100 . set to (S-1). A first alignment device fixing unit 50 for positioning and fixing the first alignment device 10 is arranged next to the heat exchange tube alignment device 100 . An abutment switch (not shown) that is turned on when the first alignment device 10 is set to the regular position is arranged in the first alignment device fixing unit 50 . A notification lamp (not shown) linked to the contact switch turns on. That is, when the first alignment device 10 is properly set in the first alignment device fixing unit 50 , the notification lamp is turned on, otherwise, the notification lamp is turned off.

When the first alignment device 10 is set, the operator confirms whether the notification lamp is ON (J-1). When the notification lamp is OFF (J1-NO), the operator performs alignment (A-1) of the first alignment device 10 in the first alignment device fixing unit 50, and the abutment switch is turned ON (J1) -YES), the notification lamp linked to the abutment switch turns ON, and the operation control unit (MC) linked to the abutment switch similarly sets the counter value to 0 and then starts the heat exchanger manufacturing process ( S-2). Also, the counter value is stored in advance in a storage device (not shown) together with the number of stacks of the heat exchange tubes 20 in the first alignment device 10 . In addition, the timing for resetting the counter value can also be made into the time of removing the 1st alignment device 10 mentioned later (S-23), or when returning the raising/lowering device 52 to the original position (S-24).

The operation control unit MC operates the lifting device 52 to raise the bottom plate 16 of the first alignment device 10 to a predetermined height position with respect to the upper surface of the mounting table 31 as shown in FIG. 9 . (S-3). Here, the height position of the heat exchange tube 20 located at the top of the heat exchange tubes 20 stacked in the first alignment device 10 is the height position of the inlet guide 33 arranged on the mounting table 31 and They are positioned at the same height.

Then, the operation control unit (MC) operates the vertical drive unit 38 of the inlet portion 39 to lower the first locking hole 39A of the inlet portion 39 toward the heat exchange tube 20 (S-4). ), as shown in FIG. 10 , the side surface of the first locking port 39A is brought into contact with the inner side of the folded portion 22 . Since the operation control unit MC is waiting in a state in which the flat position of the first locking port 39A is previously aligned with the flat position of the folded portion 22 of the heat exchange tube 20 by the horizontal drive unit 36, , the first engaging port 39A and the heat exchange tube 20 do not interfere. Subsequently, the operation control unit MC operates the horizontal driving unit 36 to move the inlet unit 39 toward the mounting table 31 by a required distance (S-5). Thereby, the uppermost heat exchange tube 20 laminated|stacked on the 1st alignment device 10 can be taken out to the side of the mounting table 31, as shown in FIG.

Next, the operation control unit MC operates the vertical drive unit 38 as shown in FIG. 12A to separate the first locking port 39A from the heat exchange tube 20 (S-6), and then, as shown in FIG. 12B , 12C after moving the horizontal driving unit 36 to the planar position of the second locking hole 39B to the planar position of the folded portion 22 of the heat exchange tube 20 (S-7) as shown in FIG. As shown, by operating the vertical drive unit 38, the second locking hole 39B is lowered to approach the heat exchange tube 20 (S-8). At this time, the height position of the diameter-reduced portion 39Ba of the second locking hole 39B coincides with the height position of the heat exchange tube 20 . Since the reduced diameter portion 39Ba is formed in an arc shape, the reduced diameter portion 39Ba can be brought into close contact with the outer peripheral surface of the heat exchange tube 20 .

Next, the operation control unit MC operates the horizontal drive unit 36 to further slide the heat exchange tube 20 drawn out to the mounting table 31 as shown in FIG. 13 to first align the heat exchange tube 20 . It moves from the device 10 to the mounting table 31 (S-9). The heat exchange tube 20 moved and placed on the mounting table 31 is guided to a predetermined position on the mounting table 31 by abutting against the side circumferential surface of the inlet guide 33 erected on the mounting table 31. In addition, the position of the tip of the leg portion 24 is in a state in which it is aligned at a predetermined position.

Moreover, the operation|movement control part MC is always detecting the horizontal direction position of the 2nd latching tool 39B in while sliding the heat exchange tube 20 on the mounting table 31. As shown in FIG. As a result, the operation control unit MC controls the positioning unit immediately after the second locking port 39B arranged in the inner region of the heat exchange tube 20 passes the position of the positioning unit 34 of the mounting table 31 . (34) is operated sequentially, and as shown in FIG. 14, it protrudes from the upper surface of the mounting table 31 sequentially from the positioning part 34 on the side of the 1st alignment apparatus 10 (S-10). In this way, the heat exchange tube 20 sliding on the mounting table 31 maintains the outer and inner surfaces of the leg portion 24 by the inlet guide 33 and is returned by the positioning unit 34 . The inner surface of the folded portion 22 is maintained. That is, the heat exchange tube 20 drawn out on the mounting table 31 is corrected to the design shape, and the flat position on the mounting table 31 is located in a state where the position of the tip of the leg part 24 is aligned at a predetermined position. decision becomes fixed.

And when the heat exchange tube 20 is completely moved to the mounting table 31, the operation control unit MC operates the vertical drive unit 38 as shown in FIG. 15 to move the inlet portion 39 to the heat exchange tube 20 ) to move away from it (S-11). Next, the operation control unit (MC) operates the mounting table moving unit 35 to move the mounting table 31 on which the heat exchange tube 20 is moved, as shown in FIG. 16 , to the arrangement location of the heat exchange tube insertion device 300 . to move toward (S-12). Then, while fixing the position of the mounting table 31, the operation control part MC operates the drive part 306 for insertion, and the heat exchange tube 20 mounted on the mounting table 31 as shown in FIG. Slide the heat exchange tube 20 toward the stacked body FS of the heat exchanger fins waiting on the extension of the tip (S-13).

Also at this time, operation control part MC is always detecting the horizontal position of the abutting body 305 or the abutting body holding|maintenance part 304 based on the electric power supply amount to the insertion drive part 306, the output content to an encoder, etc. Before the position of the folded portion 22 of the heat exchange tube 20 reaches the position of the positioning unit 34 , the order opposite to that of the movement from the first alignment device 10 to the mounting table 31 . The positioning part 34 is sequentially retracted from the upper surface of the mounting table 31 (S-14) by (from the folding part 22 toward the tip part). In this way, when the heat exchange tube 20 by the heat exchange tube insertion device 300 slides toward the laminated body FS of heat exchanger fins, the fold-back part 22 at the time of and the positioning part 34 Interference is prevented (FIG. 18).

Even when the heat exchange tube 20 is inserted into the stack of heat exchanger fins FS, the outer circumferential surface of the heat exchange tube 20 maintains a state in contact with the inlet guide 33, so the position of the tip of the leg portion 24 is is in a positioned state. Thereby, it is possible to easily and reliably insert (S-15) the tip of the leg portion 24 of the heat exchange tube 20 into a through hole (not shown) of the stack FS of heat exchanger fins (Fig. 19). And, when the heat exchanger HEX as shown in FIG. 5 is manufactured by inserting the heat exchange tube 20 through the stack of heat exchanger fins FS, the operation control unit MC places the heat exchanger ( HEX) is taken out (S-16).

Next, the operation control unit MC operates the insertion drive unit 306 to move the abutment body holding unit 304 and the abutment body 305 to a position before the insertion process of the heat exchange tube 20 as shown in FIG. 20 . Return (S-17). Subsequently, the operation control unit MC operates the mounting table moving unit 35 to return the mounting table 31 to the heat exchange tube alignment device 100 (S-18). Then, the operation control unit MC operates the horizontal drive unit 36 to move the inlet portion 39 to a position (original position) for withdrawing the next heat exchange tube 20 from the first alignment device 10 as shown in FIG. ) to return (S-19). Then, the operation controller MC operates the lifting device 52 to raise the bottom plate 16 of the first alignment device 10 by the height of the heat exchange tube 20 (S-20).

Further, the operation control unit MC performs a process of adding 1 to the counter value (S-21) whenever the lifting device 52 is operated. Then, the operation control unit MC determines whether the value of the counter after addition is equal to or greater than the number of stacks (J-2), and when the value of the counter after addition is less than the number of stacks, returns to (S-4) (S-21) ) to repeat the process (J2-NO). When the value of the counter after addition is equal to or greater than the number of stacks (J2-YES), the operation control unit MC notifies the operator by a notification means (not shown) represented by a rotary lamp or a speaker, etc. It is also possible to notify (S-22) that the heat exchange tube 20 stocked in the alignment device 10 is gone.

When the operator removes (S-23) the first aligning device 10 from which all the stacked heat exchange tubes 20 have been taken out from the first aligning device fixing part 50 (S-23), the abutment switch is turned from on to off. When the abutment switch is turned off, the operation control unit MC lowers the lifting device 52 to return it to its original position (S-24), and then ends the heat exchanger manufacturing process (END). If the operator sets the new first alignment device 10 to the first alignment device fixing part 50 as needed (S-1), the manufacturing process of the heat exchanger HEX described above can be repeatedly executed.

In the above, the heat exchange tube arranging apparatus 100 according to the present invention and the heat exchanger manufacturing apparatus 200 having the same have been described in detail based on the embodiment, but the heat exchange tube aligning apparatus 100 according to the present invention and heat exchange having the same The machine manufacturing apparatus 200 is not limited to the above embodiment.

For example, in the present embodiment, the operation control unit MC, which is a part of the configuration of the heat exchange tube aligning device 100 , also controls the operation of the heat exchange tube insertion device 300 , and as a result, the heat exchanger manufacturing device 200 . Although the mode in which operation control is also performed is described, it is not limited to this mode. In addition to the operation control unit MC of the heat exchange tube aligning apparatus 100 , a second operation control unit (not shown) that controls the operation of the heat exchange tube insertion apparatus 300 and the operation control of the heat exchanger manufacturing apparatus 200 are performed and integrated It has an operation control unit (not shown), and the general operation control unit may adopt a form in which the operation control unit MC and the second operation control unit are collectively controlled.

In addition, in the present embodiment, in the first alignment device 10, the tip position of the leg portion 24 of the heat exchange tube 20 is positioned at the through-hole pitch of the stack of heat exchanger fins FS to be inserted. Although it is laminated|stacked, it is not limited to this form. The heat exchange tubes 20 stacked on the first alignment device 10 may be aligned to the extent that the uppermost heat exchange tube 20 can be smoothly introduced into the second alignment device 30 .

Moreover, although the 1st alignment device 10 is formed in the shape of a truck in this embodiment, it can also be set as a fixed type. It is also possible to mount the lifting device 52 as a part of the first alignment device 10 or the second alignment device 30 . In particular, when the lifting device 52 is mounted on the first alignment device 10 , the lamination operation by the operator of the heat exchange tube 20 manufactured by the vendor can be facilitated. In addition, when the first alignment device 10 is shaped like a cart as in the present embodiment, it is suitable to employ a fluid cylinder of a foot pump type, which can reduce the size and weight of the lifting device 52 and reduce the cost. It's good in that respect.

Moreover, in this embodiment, although the form which comprised the lead-in part 39 of the pull-in mechanism 32 by the 1st latching part 39A and the 2nd latching part 39B from which length differs is employ|adopted, it is limited to this form it is not If the expansion/contraction amount (lower end height position) of the inlet part 39 with respect to the heat exchange tube 20 is made to be changeable, it can also be set as the form of one lead part 39. As shown in FIG.

In addition, in this embodiment, although the form using a roller as the drawing guide 33 is demonstrated, it is not limited to this form. As another form of the pull-in guide, a cylindrical body or a cylindrical body formed of a material having a small coefficient of friction may be used. In this form, the smoothness when the leg part 24 of the heat exchange tube 20 passes is slightly inferior compared to the above embodiment, but the leg part of the heat exchange tube 20 with respect to one lead-in guide 33 ( 24) can be guided in the state where two are in contact. That is, it is advantageous in that it can be provided inexpensively by reducing the number of arrangement of the lead-in guide 33 or simplifying the structure.

Moreover, in this embodiment, although the form which the positioning part 34 protrudes upward from the lower side of the mounting table 31 is demonstrated, the positioning part 34 is not limited to this form. It is also possible to adopt a form of entering and retreating into and out of the inner region (inside position) of the leg portion 24 of the heat exchange tube 20 drawn out from the upper side of the mounting table 31 to the mounting table 31 .

Moreover, although the mounting table moving part 35 in this embodiment is slidingly moving the mounting table 31 between the heat exchange tube aligning apparatus 100 and the heat exchange tube insertion apparatus 300, it is not limited to this form. The mounting table moving unit 35 is for moving the mounting table 31 on which the heat exchange tube 20 is moved to a predetermined position, and the moving destination is not limited to the heat exchange tube insertion device 300 , and the moving direction is also horizontal. It can be moved not only in the direction but also in the height direction or three-dimensionally.

Moreover, in the heat exchange tube insertion apparatus 300 in this embodiment, the front-end|tip part of the leg part 24 of the heat exchange tube 20 is sandwiched by the guide pin GP previously inserted through the stacked body FS of heat exchanger fins. The form of inserting the heat exchange tube 20 into the stack of fins for the heat exchanger (FS) after inserting is described, the heat exchange tube insertion device 300 is the heat exchange tube 20 in the stack of fins for the heat exchanger (FS) A form in which to directly insert may be employed.

Moreover, in the above embodiment, the embodiment of the heat exchanger manufacturing apparatus 200 in which the heat exchange tube insertion apparatus 300 is arranged adjacent to the heat exchange tube aligning apparatus 100 is described, but the present invention is not limited to this form It is not limited. Specifically, the heat exchange tube 20 is placed in a horizontal direction from the first aligning device 10 in which the heat exchange tube 20 formed in a hairpin shape is stacked in a so-called transverse direction with the two leg portions 24 horizontal. It may be only the heat exchange tube aligning device 100 for moving and placing in the state positioned on the mounting table 31 as it is.

Moreover, it is also possible to employ|adopt the structure which combined suitably the embodiment demonstrated above and various modified examples.

Claims (8)

The two legs of the heat exchange tube formed in the shape of a hairpin inserted into the heat exchanger fin are positioned horizontally, so that a plurality of the heat exchange tubes are stacked in the vertical direction; a first alignment device having a guide body for guiding a direction;
a lifting device for elevating the bottom plate so that the heat exchange tube positioned at the top of the plurality of stacked heat exchange tubes is always positioned at a predetermined height;
In the first alignment device, an inlet mechanism for drawing in the heat exchange tube positioned at the uppermost among the plurality of stacked heat exchange tubes, and an outer peripheral surface of each leg of the heat exchange tube introduced by the pull-in mechanism, An inlet guide that aligns the distance between the leg portions of the heat exchange tube with the through-hole pitch of the heat exchanger fin to be inserted, and the leg portion of the heat exchange tube while being drawn in by the pull-in mechanism or after drawing in is completed. A second alignment device having a positioning unit for positioning the heat exchange tube, a mounting table having at least the inlet guide and the positioning unit, and a mounting table moving unit for moving the heat exchange tube to a predetermined position
A heat exchange tube alignment device comprising a. The heat exchange tube alignment device according to claim 1, wherein the lifting device is a part of the first alignment device or the second alignment device. The heat exchange tube alignment device according to claim 1 or 2, wherein the inlet guide is a roller. The heat exchange tube alignment device according to claim 3, wherein a contact surface of the roller with the heat exchange tube is formed in an arc shape. The heat exchange tube alignment device according to claim 3, wherein only one leg portion of the heat exchange tube is in contact with the roller. [Claim 5] The heat exchange tube alignment device according to claim 4, wherein only one leg portion of the heat exchange tube is in contact with the roller. The heat exchange tube according to claim 1 or 2, wherein in a state in which the lead-in guide and the positioning part are paired, the heat exchange tube on the mounting table is arranged at a plurality of locations in the lead-in direction. sorting device. The heat exchange tube alignment device according to claim 1 or 2, wherein the first alignment device is mounted on a bogie.

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