JP6723465B2 - Fin stack device - Google Patents

Description

The present invention relates to a fin stack device including a stack pin.

The fin stack device is a device for stacking fins for a heat exchanger. In the fin stack device, first, a member serving as a fin for a heat exchanger is sent out from a press machine, adsorbed by a suction plate, and conveyed. After that, the member is cut by the cutter near the exit of the press machine to form the fin, and the fin is separated from the suction plate and drops. A through hole is formed in the fin, and a needle-shaped rod called a stack pin is inserted into the through hole of the falling fin to receive the fin. The fins that are inserted into the stack pins and fall are sequentially stacked on the plate on which the stack pins are erected. This series of flows is called a fin stack.

In the fin stack, when the number of stacked fins increases, the fin stack formed by the stacked fins may collapse due to its own weight. When the stack of fins falls down, the weight of the fins may cause the stack pins to tilt and the tips of the stack pins may be displaced. If the tip of the stack pin is displaced, the tip of the stack pin and the through hole formed in the fin inserted into the stack pin will not be aligned with each other. Therefore, the stack pin cannot be inserted through the through hole of the fin, and the fin cannot be stacked. Therefore, a fin stack device has been proposed in which guide bars that prevent the fin stack from tilting are provided upright on both sides of the fin stack (see, for example, Patent Document 1).

JP, 10-151530, A

In the conventional fin stacking device, the guide bar prevents the stack of fins from tilting outward, thereby preventing the stack pins from tilting outward. However, the guide bar cannot prevent the stack of fins from tilting inward, and thus cannot prevent the stack pin from tilting inward.

The present invention has been made to solve the above problems, and provides a fin stack device in which the inclination is corrected no matter which direction the stack pins are inclined.

The fin stack device according to the present invention is a fin stack device for stacking fins formed in a flat plate shape having a plurality of through holes, which is reciprocally driven in the vertical direction and has a plurality of holes. The suction plate that adsorbs or drops the fins depending on the presence or absence of suction and a plurality of stack pins that are provided below the suction plate and that are inserted into the through holes of the fins that have fallen from the suction plate. At least one pin position guide jig in which a guide hole into which a stack pin is inserted during movement is formed, and the guide hole is a tapered hole in which a tapered opening that spreads downward is formed. Is.

A fin stack device according to the present invention has a suction plate, and the suction plate has at least one pin position guide jig having a guide hole into which a stack pin is inserted when reciprocating. The guide hole is a taper hole having a tapered opening that spreads downward. The guide hole, which is a tapered hole, moves along the stack pin inclined by the reciprocating movement of the suction plate, so that the tip of the stack pin in contact with the inner wall surface of the guide hole is guided in the axial direction. As a result, the fin stack device can correct the inclination of the stack pin regardless of which direction the stack pin is inclined. Therefore, in the fin stacking device, the positional relationship between the fin to be inserted next and the stack pin is secured, the stack pin is reliably inserted into the through hole of the fin, and the fins can be stacked without delay.

1 is a front view showing a schematic overall configuration of a fin stack device according to Embodiment 1 of the present invention. It is a side view which shows the pin position guidance jig and stack pin of FIG. FIG. 3 is a plan view of a fin for a heat transfer tube used in the fin stack device according to the first embodiment of the present invention, the fin having the stack holes arranged in a staggered manner. 1 is a plan view of a fin for a heat transfer tube used in a fin stack device according to Embodiment 1 of the present invention, in which stack holes are transported side by side in a transport direction and in a direction orthogonal to the transport direction. is there. FIG. 3 is a plan view of fins for heat transfer tubes used in the fin stacking device according to the first embodiment of the present invention, the fins being transported side by side in the transport direction. 4 is a flowchart showing a flow of operations of the fin stack device according to Embodiment 1 of the present invention. It is a conceptual diagram which shows the stack pin inclined in the longitudinal direction of the fin. It is a conceptual diagram which shows the stack pin inclined to the lateral direction of a fin. It is a conceptual diagram which shows the positional relationship between the pin position guide jig 18 and the tilted stack pin 10 at the upper limit of the suction plate 2 of FIG. It is a conceptual diagram which shows the positional relationship between the pin position guide jig 18 and the inclined stack pin 10 in the middle of the descent of the suction plate 2 of FIG. It is a conceptual diagram which shows the positional relationship of the pin position guide jig 18 and the inclined stack pin 10 in the middle of the descent|fall of the suction plate 2 of FIG. 1 which fell further. It is a conceptual diagram which shows the positional relationship between the pin position guide jig 18 and the tilted stack pin 10 at the lower limit of the suction plate 2 of FIG. FIG. 2 is a conceptual diagram showing a positional relationship between a pin position guide jig 18 and a stack pin 10 whose inclination is corrected while the suction plate 2 in FIG. 1 is being raised. It is a side view which shows the pin position guidance jig and stack pin of the fin stack device 200 which concerns on Embodiment 2 of this invention. It is a side view which shows the pin position guidance jig and stack pin of the fin stack device 300 which concerns on Embodiment 3 of this invention.

Hereinafter, a fin stack device according to an embodiment of the present invention will be described with reference to the drawings and the like. In the following drawings, the components denoted by the same reference numerals are the same or equivalent, and are common to all the sentences of the embodiments described below. Further, the forms of the constituent elements shown in the entire specification are merely examples, and the forms are not limited to the forms described in the specification. Further, in the drawings, the size relationship of each component may be different from the actual one. Note that in this embodiment, a term indicating a direction (for example, “upper”, “lower”, “right”, “left”, “front”, “rear”, or the like) is appropriately used in order to facilitate understanding. This is for the purpose of explanation, and these terms do not limit the present invention.

Embodiment 1.
[Fin stack device 100]
FIG. 1 is a front view showing a schematic overall configuration of a fin stack device 100 according to Embodiment 1 of the present invention. The fin stack device 100 is a stack of fins 7 formed in a flat plate shape having a plurality of through holes. The fin stack device 100 includes a suction plate 2 that attracts or drops the fins 7, and a plurality of stack pins 10 that are inserted into the through holes of the fins 7 that have dropped from the suction plate 2. The fin stack device 100 also includes a suction box 4 arranged above the suction plate 2 and a blower 5 arranged above the suction box 4.

[Blower 5]
The blower 5 is located at the uppermost part of the fin stack device 100, and sucks up so that the inside of the suction box 4 provided below is in a negative pressure state.

[Suction box 4]
The suction box 4 is arranged between the blower 5 and the suction plate 2, and causes the suction force of the blower 5 to act on the entire suction plate 2. A damper 3 is provided on the suction box 4 so as to be openable and closable. The suction box 4 can maintain a negative pressure inside when the damper 3 is closed, and can release the negative pressure by opening the inside to the atmosphere when the damper 3 is opened. When the damper 3 is closed and the negative pressure state in the suction box 4 is maintained, suction force is exerted on the lower surface of the suction plate 2. When the damper 3 is opened and the negative pressure state in the suction box 4 is released, the suction force acting on the lower surface of the suction plate 2 is also released.

[Suction plate 2]
The suction plate 2 is arranged below the suction box 4, and a blower 5 located above the suction plate 4 operates to bring the inside of the suction box 4 into a negative pressure state, thereby exerting a suction force on the lower surface side of the suction plate 2. It is what makes me. The suction plate 2 is reciprocally driven in the vertical direction, and a plurality of holes for applying suction force to attract the fins 7 are formed on the lower surface thereof. Adsorb or drop. Further, a groove extending in the carrying direction is formed on the lower surface of the suction plate 2 so as to match the outer shape of the fin 7, and the fin 7 is sucked and carried in a state of being fitted and positioned in the groove. The fins 7 which have been subjected to a predetermined press work by the press machine 6 are horizontally fed to a lower side of the suction plate 2 for a predetermined length by a feeding device (not shown), and a lower wall portion of the suction plate 2 is provided. Move the surface of 2a. The lower wall portion 2a of the suction plate 2 is provided with at least one pin position guide jig 18 having a guide hole 19 into which a stack pin 10 described later is inserted when the suction plate 2 reciprocates. There is.

[Pin position guide jig 18]
FIG. 2 is a side view showing the pin position guide jig 18 and the stack pin 10 of FIG. The pin position guide jig 18 corrects the inclination of the stack pin 10 that is inclined by the weight of the fin 7 and returns it to the original position. The pin position guide jig 18 is preferably provided on each of the plurality of stack pins 10. It is preferable that the pin position guide jigs 18 are respectively provided on the upper portions of the plurality of stack pins 10. However, if there is a stack pin 10 that tends to tilt due to the characteristics of the fin stack device 100, the stack pin 10 that tends to tilt. May be provided only on the upper part of. A guide hole 19 which is a through hole is formed in the pin position guide jig 18. The guide hole 19 is a tapered hole having a tapered opening that spreads downward. The hole diameter of the lower end portion 19a of the guide hole 19 is the maximum diameter of the guide hole 19 and is formed according to the amount of inclination of the stack pin 10. The guide hole 19 is a tapered hole having a circular cross section so that the stack pin 10 can be guided in any direction. On the other hand, the upper end portion 19b of the guide hole 19 forms an opening having the smallest diameter. The hole diameter of the upper end portion 19b of the guide hole 19 is the minimum diameter of the guide hole 19 and is equal to the maximum diameter of the stack pin 10. In other words, the minimum diameter of the guide hole 19 is equal to the diameter of the main body portion 16 of the stack pin 10 described later. It should be noted that “equal” means that the inner diameter of the guide hole 19 and the outer diameter of the stack pin 10 are equal, and that the inner diameter of the guide hole 19 is formed slightly larger than the outer diameter of the stack pin 10. Including and The guide hole 19 is formed such that the inner peripheral surface of the upper end portion 19b has a hole diameter of a size that follows the outer shape of the stack pin 10 having the maximum diameter, and the stack pin 10 fits into the guide hole 19. It is formed with a hole diameter that does not exist. The minimum diameter of the guide hole 19 is larger than the maximum diameter of the tip portion 14 of the stack pin 10, which will be described later.

[Stack pin 10]
As shown in FIG. 2, the stack pin 10 has a tapered tip portion 14 that constitutes the upper portion of the stack pin 10 and a cylindrical body portion 16 that constitutes the lower portion of the stack pin 10. The tip portion 14 is formed in a tapered shape so that the falling fin 7 can be easily guided downward. The maximum diameter of the tip portion 14 is smaller than the minimum diameter of the guide hole 19, that is, the hole diameter of the upper end portion 19b. The body portion 16 constitutes the maximum diameter of the stack pin 10, and the diameter of the body portion 16 of the stack pin 10 is equal to the minimum diameter of the guide hole 19, that is, the hole diameter of the upper end portion 19b, as described above. Is. Note that “equal” means that the inner diameter of the guide hole 19 and the outer diameter of the stack pin 10 are equal, or that the outer diameter of the stack pin 10 is slightly smaller than the inner diameter of the guide hole 19. Including and That is, the main body portion 16 has an outer shape along the inner peripheral surface of the guide hole 19.

As shown in FIG. 1, a plurality of stack pins 10 are provided below the suction plate 2 and are inserted into the stack holes 12 of the fins 7 dropped from the suction plate 2. The stack pin 10 is erected on the upper surface of the pedestal 8 arranged below the suction plate 2. The stack pin 10 is arranged with its tip facing the upper suction plate 2, and penetrates the elevator 9 arranged between the suction plate 2 and the pedestal 8. The position of the stack pin 10 is located directly below a stack hole 12 of the fin 7 described later.

[Elevator 9]
The elevator 9 is arranged between the suction plate 2 and the pedestal 8 and descends so that the uppermost surface of the fins 7 stacked on the elevator 9 is kept at a constant height position. At this time, the height position of the fins 7 is detected by a sensor (not shown), or after a prescribed number of fins 7 have dropped, the elevator 9 is lowered to a predetermined position by a control device (not shown).

[Fin 7]
FIG. 3 is a plan view of the fins 7 for heat transfer tubes used in the fin stack device 100 according to Embodiment 1 of the present invention, in which the stack holes 12 are conveyed in a staggered arrangement. .. FIG. 4 shows fins 7 for heat transfer tubes used in the fin stack device 100 according to Embodiment 1 of the present invention, in which stack holes 12 are aligned in the transport direction 13 and a direction orthogonal to the transport direction 13. It is a top view of the fin 7 conveyed by. FIG. 5 is a plan view of the fins 7 for the heat transfer tubes used in the fin stack device 100 according to Embodiment 1 of the present invention, the fins 7 being transported side by side in the transport direction 13. The fin 7 is a thin metal plate formed in a long shape. The fins 7 are cut from the work 17 into a product outer shape by the press machine 6 shown in FIG. 1, and are fed from the press machine 6 to the fin stack device 100 by a feeding device (not shown). As shown in FIGS. 3 to 5, the fin 7 is formed with a circular stack hole 12, and the fin 7 used when the heat transfer tube is a circular tube is described. However, the fins 7 are not limited to the fins 7 used when the heat transfer tube is a circular tube, and include the fins 7 used when the heat transfer tube is a flat tube, for example. The stack hole 12 corresponds to the "through hole" of the present invention.

As shown in FIGS. 3 to 5, the fin 7 is formed with a plurality of stack holes 12 into which the heat transfer tubes of the heat exchanger are inserted, and the stack pin 10 is a part of the plurality of stack holes 12. Inserted in the hole. 3 and 4 show a state in which a plurality of fins 7 are arranged in a direction orthogonal to the transport direction 13. The fins 7 sent out from the press machine 6 to the fin stack device 100 are already divided in the direction orthogonal to the transport direction 13. In each fin 7 shown in FIG. 3, a plurality of stack holes 12 are formed at a predetermined interval along the transport direction 13, and in the work 17, the stack holes 12 are formed in a staggered arrangement. There is. A plurality of stack holes 12 are formed in each fin 7 shown in FIG. 4 along the transport direction 13 at predetermined intervals, and in the work 17, the stack holes 12 are orthogonal to the transport direction 13 and the transport direction 13. They are formed so that they are aligned in the same direction. The work 17 shown in FIG. 5 is formed with the stack holes 12 aligned in the carrying direction 13 and a direction orthogonal to the carrying direction 13, and this aspect is the same as the work 17 shown in FIG. However, in the work 17 in FIG. 5, the arrangement direction of the fins 7 is aligned with the carrying direction 13 of the fins 7, and the fins 7 are arranged along the direction orthogonal to the carrying direction 13. A plurality of stack holes 12 are formed at predetermined intervals.

The fins 7 sent from the press machine 6 to the fin stack device 100 may be circular pipes or flat pipes as described above, and the arrangement direction of the fins 7 is arbitrary. In addition, the fin 7 is formed with an annular fin collar 12a (see FIG. 8) that rises vertically from the peripheral edge of the stack hole 12.

[Operation of Fin Stack Device 100]
FIG. 6 is a flowchart showing an operation flow of the fin stack device 100 according to Embodiment 1 of the present invention. The operation of the fin stack device 100 will be described below with reference to FIGS. 1 and 6.

First, the blower 5 located above the fin stack device 100 starts sucking (step S1). Next, the press machine 6 is started (step S2), the fins 7 are pressed, and then the fins 7 are sent from the press machine 6 to the fin stack device 100 (step S3). In the fin stack device 100, the suction by the blower 5 is applied to the entire suction plate 2 by the suction box 4, and the sent-out fins 7 are conveyed for a predetermined length in a state of being sucked onto the lower surface of the suction plate 2 (step S4). The fins 7 are conveyed on the suction surface of the suction plate 2, and the fins 7 delivered to a predetermined length are cut by the cutoff section 11 (step S5). The suction plate 2 descends in the vertical direction almost simultaneously with the cutting of the fins 7 (step S6). When the suction plate 2 descends, the pin position guide jig 18 provided on the suction plate 2 inserts the stack pin 10 tilted by the weight of the stacked fins 7 into the guide hole 19 to tilt the stack pin 10. Is corrected (step S7). The damper 3 is opened immediately after the suction plate 2 is lowered, the inside of the suction box 4 is released to the atmosphere, the pressure inside the suction box 4 is restored, and the suction force generated on the suction plate 2 is released (step S8). The fins 7 drop by releasing the suction force (step S9), while the suction plate 2 rises (step S10). The fins 7 are guided downward while the stack pins 10 are being inserted into the stack holes 12 (step S11), and land on the elevator 9 (step S12). The above steps S1 to S12 are repeated, and the fins 7 are sequentially stacked on the elevator 9. At this time, the height position of the uppermost surface of the fins 7 stacked on the elevator 9 is detected by a sensor (not shown) (step S13), and the elevator 9 is maintained so that this height position is maintained at a constant position. Is lowered (step S14). By repeating this operation, the fins 7 are stacked in the fin stacking device 100.

[Operation for correcting the inclination of the stack pin 10]
FIG. 7 is a conceptual diagram showing the stack pin 10 tilted in the longitudinal direction of the fin 7. FIG. 8 is a conceptual diagram showing the stack pin 10 tilted in the lateral direction of the fin 7. The dotted line C1 shown in FIGS. 7 and 8 is an imaginary line orthogonal to the fin 7 and passing through the center of the stack hole 12. The arrows shown in FIGS. 7 and 8 indicate the inclination T of the stack pin 10. The stack pin 10a standing upright along the dotted line C1 is the stack pin 10 having no inclination, and the tip thereof is the stack pin 10 located at the regular position. As shown in FIGS. 7 and 8, the stack pin 10 may be tilted in the front-rear direction and the left-right direction with respect to the stack pin 10a at the regular position standing along the dotted line C1 due to the load of the stacked fins 7. .. That is, the stack pin 10 may be tilted outward or inward in the fin stack device 100 due to the load of the stacked fins 7. Hereinafter, the correction of the inclination of the stack pin 10 in step S7 will be described in more detail.

FIG. 9 is a conceptual diagram showing the positional relationship between the pin position guide jig 18 and the tilted stack pin 10 at the upper limit of the suction plate 2 of FIG. The dotted line C2 shown in FIG. 9 is an imaginary line orthogonal to the suction plate 2 and passing through the center of the guide hole 19. In FIG. 9, a stack pin 10a that is located at the center among the three stack pins 10 and stands upright along the dotted line C2 is a stack pin 10 that has no inclination, and the tip thereof is located at a regular position. It is 10. In the case of the stack pin 10 which is not tilted, the center of the guide hole 19 overlaps with the axis of the main body 16 in a plan view. The stack pins 10b located on the left and right of the stack pin 10a conceptually represent pins that are tilted with respect to the stack pin 10a at the regular position that is vertically installed along the dotted line C2 by the load of the stacked fins 7. Is. In the fin stack device 100, when the stack pins 10 that are inclined and the stack pins 10 that are not inclined are mixed, at least one pin position guiding jig 18 among the plurality of pin position guiding jigs 18 is The center of the guide hole 19 overlaps with the axis of the main body 16 in a plan view.

The pin position guide jig 18 is provided on the lower wall of the suction plate 2 and descends together with the suction plate 2 in step S6. The pin position guide jig 18 moves downward together with the suction plate 2 to insert the stack pin 10 into the guide hole 19. At this time, the stack pin 10a which is not inclined is inserted into the guide hole 19 and penetrates the pin position guide jig 18. The pin position guide jig 18 moves downward from above along the stack pin 10 inclined by the weight of the fin 7.

FIG. 10 is a conceptual diagram showing a positional relationship between the pin position guiding jig 18 and the tilted stack pin 10 while the suction plate 2 of FIG. 1 is being lowered. FIG. 11 is a conceptual diagram showing the positional relationship between the pin position guiding jig 18 and the tilted stack pin 10 while the suction plate 2 of FIG. 1 is further lowered. As the suction plate 2 descends, the tip 14 of the stack pin 10 is gradually inserted into the guide hole 19 of the pin position guide jig 18. Since the guide hole 19 formed in the pin position guide jig 18 is a tapered hole that spreads downward, the tip portion 14 of the stack pin 10 can be easily inserted regardless of which direction the stack pin 10 is inclined. The stack pin 10 inserted into the guide hole 19 has an inclined outer peripheral surface in contact with the inner peripheral wall of the guide hole 19. When the pin position guide jig 18 further moves downward together with the suction plate 2 in this state, the outer peripheral surface of the stack pin 10 on the inclined side is guided along the inner peripheral wall of the guide hole 19, and the stack pin 10 is indicated by the dotted line C2. Guided to approach the regular position along. In other words, the stack pin 10 in contact with the inner peripheral wall of the guide hole 19 is applied with pressure in the axial direction of the stack pin 10 by the inner peripheral wall of the guide hole 19 formed in a tapered shape as the suction plate 2 moves downward. To be The inclination of the stack pin 10 is corrected by the pressure applied in the axial direction of the stack pin 10 by the inner peripheral wall of the guide hole 19. Therefore, as the stack pin 10 becomes deeper in the guide hole 19, the inclination T of the stack pin 10 is eliminated.

FIG. 12 is a conceptual diagram showing the positional relationship between the pin position guiding jig 18 and the tilted stack pin 10 at the lower limit of the suction plate 2 of FIG. The hole diameter HD of the upper end portion 19b of the guide hole 19 which is the opening diameter on the blower 5 side is the minimum diameter of the guide hole 19 and equal to the diameter SD of the main body portion 16 of the stack pin 10 which is the maximum diameter of the stack pin 10. It is the size. In addition, "equal" means that the hole diameter HD of the upper end portion 19b of the guide hole 19 and the diameter SD of the main body portion 16 of the stack pin 10 are equal, and the hole diameter HD of the upper end portion 19b of the guide hole 19 is Including the case where it is formed slightly larger than the diameter SD of the main body portion 16. When the suction plate 2 reciprocates, the upper end portion 19b forming the opening portion having the smallest diameter of the guide hole 19 descends to the position of the main body portion 16. That is, as the suction plate 2 moves, the upper end portion 19b of the guide hole 19 moves until it conforms to the outer diameter shape of the main body portion 16 of the stack pin 10. When the pin position guide jig 18 moves to the lowest end, the upper end portion 19b of the guide hole 19 of the pin position guide jig 18 descends to the position of the main body portion 16, so that the inclined stack pin 10 is moved along the dotted line C2. It can be returned to its normal position.

FIG. 13 is a conceptual diagram showing the positional relationship between the pin position guide jig 18 and the stack pin 10 whose inclination has been corrected while the suction plate 2 of FIG. When the pin position guide jig 18 moves to the lowermost end, the pin position guide jig 18 also rises as the suction plate 2 moves upward in step S10. When the pin position guide jig 18 is raised, the inclination of the stack pin 10 is corrected.

As described above, the fin stack device 100 has the suction plate 2, and the suction plate 2 has at least one pin position guiding jig in which the guide hole 19 into which the stack pin 10 is inserted is formed when the suction plate 2 reciprocates. It has a tool 18. The guide hole 19 is a tapered hole having a tapered opening that spreads downward. The guide hole 19 that is a tapered hole moves along the stack pin 10 that is inclined by the reciprocating motion of the suction plate 2, so that the tip of the stack pin 10 that contacts the inner wall surface of the guide hole 19 is guided in the axial direction. To be done. As a result, the fin stack device 100 can correct the inclination of the stack pin 10 in any direction. Therefore, in the fin stacking device 100, the positional relationship between the fin 7 and the stack pin 10 to be inserted next is secured, the stack pin 10 is reliably inserted into the stack hole 12 of the fin 7, and the fins 7 are stacked without delay. Can be made.

In the fin stack device 100, the guide hole 19 formed in the pin position guide jig 18 is a tapered hole that widens downward. Therefore, the tip portion 14 of the stack pin 10 is easily inserted regardless of the direction in which the stack pin 10 is inclined.

Further, in the fin stack device 100, the stack pin 10 has a tapered tip portion 14 and a cylindrical body portion 16, and the minimum diameter of the guide hole 19 is formed larger than the maximum diameter of the tip portion 14. Has been done. Therefore, the stack pin 10 can secure the insertion depth into the guide hole 19, and the inclination of the stack pin 10 can be reliably corrected. Further, it is possible to prevent the stack pin 10 from getting stuck in the guide hole 19.

In the fin stack device 100, the center of the guide hole 19 of at least one pin position guide jig 18 among the plurality of pin position guide jigs 18 overlaps with the axial center of the main body 16 in a plan view. .. Therefore, when the suction plate 2 reciprocates, the non-tilted stack pin 10 can penetrate the pin position guide jig 18, and unnecessary deformation of the non-tilted stack pin 10 can be prevented. ..

Further, in the fin stack device 100, the minimum diameter of the guide hole 19 of the pin position guide jig 18 is equal to the diameter of the main body portion 16 of the stack pin 10, and the guide plate is guided when the suction plate 2 reciprocates. The opening portion having the smallest diameter of the hole 19 descends to the position of the main body portion 16. At this time, since the inner wall of the upper end portion 19b of the guide hole 19 is along the outer wall of the main body portion 16 of the stack pin 10, the tilted stack pin 10 can be returned to a substantially vertical position.

Embodiment 2.
FIG. 14 is a side view showing the pin position guiding jig 18 and the stack pin 10 of the fin stack device 200 according to Embodiment 2 of the present invention. Portions having the same configurations as those of the fin stack device 100 of FIGS. 1 to 13 are designated by the same reference numerals and the description thereof will be omitted. The fin stack device 200 according to the second embodiment of the present invention is different from the fin stack device 100 of the first embodiment only in the arrangement of the pin position guide jigs 18 on the suction plate 2, and other configurations are the fin stack device. It is the same as 100. The fin stack device 200 is provided with a plurality of stack pins 10. However, the arrangement of the stack pins 10 causes a difference in the amount of tilt, and also causes a difference in the direction in which it is easy to tilt. For example, in the fin stack device 200, the stack pins 10 arranged near the center are less likely to tilt, and the stack pins 10c arranged near the periphery tend to tilt toward the center.

Therefore, in the fin stack device 200, the pin position guide jig 18 corresponding to the stack pin 10 arranged near the center is arranged so that the center of the guide hole 19 coincides with the axial center of the main body portion 16 of the stack pin 10. It is attached to the suction plate 2. On the other hand, in the fin stack device 200, in the pin position guiding jig 18a corresponding to the stack pin 10c arranged near the periphery, the center of the guide hole 19 is the fin stack with respect to the axis of the main body 16 of the stack pin 10. It is attached to the suction plate 2 so as to be closer to the center of the device 200. That is, in the fin stack device 200, at least a part of the plurality of pin position guiding jigs 18 are attached to the suction plate 2 at different attachment intervals. In other words, in the fin stack device 200, at least a part of the plurality of pin position guiding jigs 18 is attached to the suction plate 2 so that the center of the guide hole 19 does not overlap the axis C3 of the main body 16 in a plan view. Has been.

As described above, in the fin stack device 200, at least some of the plurality of pin position guiding jigs 18 are attached to the suction plate 2 at different attachment intervals. Therefore, the fin stack device 200 eliminates the inclination T of the stack pin 10 by inserting only the tip portion 14 without inserting the body portion 16 of the stack pin 10 into the guide hole 19 of the pin position guiding jig 18. be able to. As a result, the fin stack device 200 can reduce the stacking time of the fins 7.

Further, in the fin stack device 200, at least a part of the plurality of pin position guiding jigs 18 is attached to the suction plate 2 such that the center of the guide hole 19 does not overlap the axis C3 of the main body 16 in a plan view. There is. Therefore, the fin stack device 200 eliminates the inclination T of the stack pin 10 by inserting only the tip portion 14 without inserting the body portion 16 of the stack pin 10 into the guide hole 19 of the pin position guiding jig 18. be able to. As a result, the fin stack device 200 can reduce the stacking time of the fins 7.

Embodiment 3.
FIG. 15 is a side view showing the pin position guiding jig 18 and the stack pin 10 of the fin stack device 300 according to the third embodiment of the present invention. Portions having the same configurations as those of the fin stack device 100 of FIGS. 1 to 13 are designated by the same reference numerals and the description thereof will be omitted. The fin stack device 300 according to the third embodiment of the present invention is different from the fin stack device 100 only in the taper angle of the guide hole 19 depending on the arrangement of the pin position guide jig 18.

In the fin stack device 300, at least a part of the plurality of pin position guiding jigs 18 is formed so that the taper angles of the guide holes 19 are different depending on the positions arranged on the suction plate 2. For example, since the stack pin 10 arranged near the center of the fin stack device 300 has a small amount of inclination, the pin position guide jig 18 corresponding to the stack pin 10 arranged near the center has a taper angle of the guide hole 19. Use a small one. On the other hand, since the stack pin 10c arranged near the periphery of the fin stack device 300 has a large inclination amount, the pin position guide jig 18b corresponding to the stack pin 10c arranged near the periphery has a guide hole 19 having a taper angle. Use a large one. That is, the difference between the minimum diameter and the maximum diameter of the pin position guiding jig 18b corresponding to the stack pin 10c arranged near the periphery is the maximum of the pin position guiding jig 18 corresponding to the stack pin 10 arranged near the center. Larger than the difference between the small diameter and the maximum diameter.

As described above, in the fin stack device 300, at least a part of the plurality of pin position guiding jigs 18 is formed so that the taper angles of the guide holes 19 are different depending on the positions arranged on the suction plate 2. There is. Therefore, the fin stack device 300 can eliminate the inclination T of the stack pin 10 by inserting only the tip portion 14 without inserting the body portion 16 of the stack pin 10 into the guide hole 19 of the pin position guiding jig 18. .. As a result, the fin stack device 300 can reduce the stacking time of the fins 7.

The embodiment of the present invention is not limited to the above-described first to third embodiments, and various changes can be added. For example, in the fin stack device 200, at least some of the plurality of pin position guiding jigs 18 are attached to the suction plate 2 at different attachment intervals. The fin stack device 200 changes the position of the guide hole 19 in the suction plate 2 by changing the attachment interval of the pin position guide jig 18. Therefore, the formation position of the guide hole 19 formed in the pin position guiding jig 18 may be changed in advance so that the mounting intervals of the pin position guiding jig 18 are made equal. For example, in the fin stack device 200, it is assumed that the stack pin 10 arranged in the center is hard to tilt and the stack pin 10 arranged in the periphery is easy to tilt. In this case, the guide hole 19 of the pin position guide jig 18 corresponding to the stack pin 10 arranged in the periphery may be formed from the center of the fin stack device 200. With this configuration, the fin stack device 200 can insert the stack pin 10 by inserting only the tip portion 14 without inserting the body portion 16 of the stack pin 10 into the guide hole 19 of the pin position guide jig 18. The inclination T can be eliminated. As a result, the fin stack device 200 can reduce the stacking time of the fins 7.

2 suction plate, 2a lower wall part, 3 damper, 4 suction box, 5 blower, 6 press machine, 7 fin, 8 pedestal, 9 elevator, 10 stack pin, 10a stack pin, 10b stack pin, 10c stack pin, 11 cut OFF part, 12 stack holes, 12a fin collar, 13 transport direction, 14 tip part, 16 main body part, 17 work piece, 18 pin position guide jig, 18a pin position guide jig, 18b pin position guide jig, 19 guide hole , 19a lower end, 19b upper end, 100 fin stack device, 200 fin stack device, 300 fin stack device.

Claims (7)

In a fin stacking device that stacks fins formed in a flat plate shape having a plurality of through holes,
A suction plate that is reciprocally driven in the up-and-down direction, has a plurality of holes, and adsorbs or drops the fins depending on the presence or absence of suction from the plurality of holes,
A plurality of stack pins provided below the suction plate and inserted into the through holes of the fins that have fallen from the suction plate;
Equipped with
The suction plate is
At least one pin position guide jig having a guide hole into which the stack pin is inserted when reciprocating,
The fin stack device, wherein the guide hole is a tapered hole having a tapered opening that spreads downward. The stack pin is
It has a tapered tip portion and a cylindrical body portion,
The fin stack device according to claim 1, wherein a minimum diameter of the guide hole is larger than a maximum diameter of the tip portion. The fin stack device according to claim 2, wherein at least a part of the plurality of pin position guiding jigs has a center of the guide hole that overlaps with an axis of the main body in a plan view. The fin stack device according to claim 2, wherein at least a part of the plurality of pin position guiding jigs has a center of the guide hole that does not overlap with an axis of the main body in a plan view. The pin position guide jig is
The minimum diameter of the guide hole is equal to the diameter of the body portion of the stack pin,
The suction plate is
The fin stack device according to any one of claims 2 to 4, wherein the opening portion having the smallest diameter of the guide hole descends to the position of the main body portion when reciprocating. The fin stack device according to any one of claims 1 to 5, wherein at least some of the plurality of pin position guiding jigs are attached to the suction plate at different attachment intervals. 7. At least a part of the plurality of pin position guiding jigs is formed such that the taper angles of the guide holes are different depending on the positions arranged on the suction plate. The fin stack device described in 1.

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