JPH0240460B2 - NETSUKOKANKYOKOANOPUREETOKUMITSUKESOCHI - Google Patents

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention is applicable not only to automatic plate driving of cores for general heat exchangers (such as radiators), but also to other heat exchangers having a combination of tubes, fins, and end plates. The present invention relates to an automatic plate assembling device for dexterous cores.

[Prior art and problems]

In general, a heat exchanger core consists of a pair of end plates or inserts 2, as shown in FIG.
The required number of tubes 4 and fins 5 are alternately arranged between the tubes 3. As shown in FIG. 8, side plates 6 and 7 are respectively driven into both ends of the tube 4 of the core 1 after assembly. At this time, both ends of the side plates 6 and 7 engage with both ends of the end plates 2 and 3.

Conventionally, the method was to manually set (temporarily fix) the side plates 6 and 7 on both ends of the tube 4 of the core 1 after assembly, and then drive the side plates 6 and 7 into both ends of the tube 4 using a press machine. I was picking. However, since the spacing between the tubes 4 varies and the fins 5 tend to protrude to the sides of the core 1, much effort is required to set the side plates 6 and 7.

[Means for solving problems]

As a means for solving the above problems, the present invention provides a heat exchanger core in which a predetermined number of tube fins are alternately arranged between a pair of end plates, and compressed in the direction in which the tubes and the fins are arranged. a clamp device for clamping, a pair of fin guide devices for guiding both ends of the fin between adjacent tubes and between the end plate and the tube, and outer sides of both ends of the fin. a pair of tube guide devices that hold both ends of the tube and the end plate to maintain a constant distance between the adjacent tubes and a distance between the tube and the end plate; A plate assembling device for a heat exchanger core is provided, comprising a pair of plate driving devices for driving side plates into the outer periphery of both ends of the tube.

[Effect]

According to the above means according to the present invention, a heat exchanger core consisting of a pair of end plates and a large number of tubes and fins is compressed and clamped by the clamp device in the direction in which the tubes and fins are arranged. Further, since both ends of the fin are guided by the fin guide device between adjacent tubes and between the tube and the end plate, the fin is prevented from flying out. Further, both ends of the end plate and the tube are held by the tube guide device, so that the distance between adjacent tubes and between the end plate and the tube is maintained constant. In this way, the side plates are automatically and reliably driven into both ends of a correctly set heat exchanger core tube.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

1 to 6 show one embodiment of the present invention. Referring to FIG. 1, the apparatus for assembling plates of a heat exchanger core includes a clamping device 10. As shown in FIG. The clamp device 10 here includes two reference clamp tables 11 and two movable clamp tables 12. A clamp pin 13 is supported on the reference clamp base 11 and the movable clamp base 12 so as to be movable in the vertical direction, and each clamp pin 13 is vertically driven by a clamp cylinder 14 provided on each clamp base 11, 12. It is becoming more and more like this. A heat exchanger core 1 consisting of a pair of end plates 2, 3, a predetermined number of tubes 4, and a predetermined number of fins 5 is connected to a pair of loader claws 15, 1.
6 in the direction in which the tubes 4 and fins 5 are arranged, and is carried horizontally in the direction of arrow A and placed between these four clamp pins 13. At this time, the clamp pin 13 is moved downward to avoid interference with the heat exchanger core 1 and the loader claws 15 and 16. After the heat exchanger core 1 is set at a predetermined position, the clamp pin 13 projects upward and comes into contact with the end plates 2 and 3, compressing and clamping the heat exchanger core 1. Thereafter, the loader claws 15 and 16 release the heat exchanger core 1. In order to clamp the heat exchanger core 1 with the clamp pins 13, the two reference clamp tables 11 on one end plate 2 side and the two movable clamp tables 12 on the other end plate 3 side are connected to drive shafts 17 and 12, respectively. 18 horizontally in the direction in which the tubes 4 and fins 5 are arranged.
The drive shafts 17, 18 are connected to a drive motor (not shown).

The plate assembly device includes an upper surface guide plate 19 for guiding the upper surface of the heat exchanger core 1 and a lower surface guide plate 20 for guiding the lower surface of the heat exchanger core 1. It is carried between the upper guide plate 19 and the lower guide plate 20 by the loader claws 15 and 16 mentioned above.

The plate assembly device includes a pair of fin guide devices 21. Each fin guide device 21 includes a fin guide plate 22 extending in the direction in which the tubes 4 and fins 5 are arranged, and the fin guide plate 22 is provided with a comb tooth portion 22a at its upper portion. As shown in FIG. 6, the lower part of the fin guide plate 22 is rotatably supported by a horizontally extending shaft 23, and the shaft 23 is supported by a rod 24 that can be mounted vertically. The rod 24 is adapted to be driven up and down by a drive arm 25 connected to a drive cylinder (not shown). The fin guide plate 22 is urged counterclockwise in FIG. 6 by a spring 26. Fin guide plate 2
When the comb teeth portion 22a of No. 2 is located below the fin 5, it is separated from both ends of the fin 5 by the force of the spring 26 as shown by the two-dot chain line in FIGS. , with the rise of rod 24, Finn 5
When the base portion 22b of the fin guide plate 22 comes into contact with the stopper wall 20a provided on the lower guide plate 20, the fin guide plate 22 rotates clockwise around the shaft 23, and the fin Comb teeth portion 22 of guide plate 22
Each tooth a pushes the end of the fin 5 toward the inside of the heat exchanger core 1. This prevents the fins 5 from popping out between adjacent tubes 4 and between the end plates 2 and 3 and the tubes 4.

The plate assembly device holds the tubes 4 and both ends of the end plates 2 and 3 on the outside of both ends of the fin 5 to keep the distance between adjacent tubes 4 and the distance between the tubes 4 and the end plates 2 and 3 constant. A pair of tube guide devices 27 are provided.
Each tube guide device 27 includes an inner plate 28 and an outer plate 29 extending in the direction in which the tubes 4 and fins 5 are arranged. The inner and outer plates 28, 29 have comb teeth portions 28a and 29a at the bottom.
It is equipped with Inner and outer plates 28, 29
After the fin guide plate 22 guides both ends of the fin 5, the comb teeth portions 28a and 29a are arranged between adjacent tubes 4 and between the end plates 2 and 3 with their teeth overlapping each other on the outside of the fin guide plate 22. It is caused to enter between the tube 4 and the tube 4 from above by the driving force of a cylinder device (not shown). Thereafter, the comb teeth portions 28a and 29 are moved in the directions of arrows B and C by the cylinder devices 30 and 31, respectively, as shown in FIG. The ends of the end plates 2 and 3 are clamped. Thereby, the tube 4 and end plates 2 and 3 are correctly positioned. In FIG. 2, both ends of the fins 5 of the heat exchanger core 1 are connected to the fin guide plate 2.
2, and both ends of the tube 5 and end plates 2 and 3 are sandwiched between the comb teeth portions 28a and 29a of the tube guide device 27.

Plate assembly device is double tube guide device 2
A pair of plate driving devices 32 are provided for driving the side plates 6 and 7 into the outer periphery of both ends of the tube 4 from the outside of the tube 4. Each plate driving device 32 includes a fixed base 33, a support base 34 provided on the fixed base 33 so as to be movable up and down, and a support base 34.
Inner and outer blocks 35 and 36 are provided on the tube 4 so as to be horizontally movable in parallel with the longitudinal direction of the tube 4. Inner and outer blocks 35, 36
are connected to cylinder devices 37 and 38, respectively. When the cylinder device 38 connected to the outer block 36 operates, the outer block 36 is pushed toward the heat exchanger core 1, and at the same time, the inner block 35 is pushed toward the heat exchanger core 1 by the outer block 36.
pushed to the side. When the cylinder device 37 connected to the inner block 35 operates, the inner block 3
5 is pushed toward the heat exchanger core 1 side. A hole 35 provided in the inner and outer blocks 35, 36 with a number of arrow members 39 facing the end of each tube 4.
a, 36a. Outer block 36
is provided with a groove 36b extending in a direction perpendicular to the hole 36a, and a key member 40 that can be engaged with a recess 39a of the arrow member 39 is slidably inserted into this groove 36. A connecting block 41 that is moved in the direction in which the tubes 4 and fins 5 are arranged by a cylinder device (not shown) is provided with a groove 41a extending parallel to the arrow member 39.
A roller 42 provided at one end of the groove 41a engages with the groove 41a. Arrow member 39 is secured to outer block 36 via key member 40. When the number of tubes 4 is smaller than the number of arrow members 39, only the arrow members 39 facing the end of the tube 4 are fixed to the outer block 36 via the key member 40 by movement of the key member 40. .

Each arrow member 39 has a side plate mounting portion 3 on the tip side having an outer shape that is almost the same as the outer shape of the tube 4.
9b, and this side plate mounting portion 3
An arrowhead portion 39c that can be fitted into the end of the tube 4 is provided at the tip of the tube 9b.

The side plates 6 and 7 are pre-attached to the heat exchanger core 1.
The side plate mounting portion 39 of the arrow member 39 is located above the arrow member 39.
Driven by b. Thereafter, the support base 34 is moved to the driving position where the arrow member 39 faces the end of the tube 4.
is forced to descend. In this driving position, the outer block 36 is inserted into the tube 4 by means of the cylinder device 38.
pushed towards the edge of the As a result, the fifth
As shown in the figure, the arrow tip portion 39c of each arrow member 39 is inserted into the end of each tube 4. The inner and outer plates 28, 29 of the tube guide device 27 then rise, releasing the tube 4 and end plates 2, 3. Thereafter, the inner block 35 is pushed out toward the end of the tube 4 by the cylinder device 37, and the side plates 6, 7 held by the arrow member 39 are driven along the outer periphery of the tube 4 by the inner block 35. At this time, both ends of the side plates 6 and 7 engage with both ends of the end plates 2 and 3 to hold the end plates 2 and 3, and then the outer block 36
is returned to its original position, whereby the arrow member 39 is pulled out from the end of the tube 4. After the plate driving is completed, the fin guide plate 22
are lowered and extracted from between both ends of the fin 5 and the side plates 6 and 7, thereby completing the side plate driving work.

The plate driving device 32 on the side through which the loader claws 15 and 16 described above pass has the loader claws 15 and 16 described above.
In order to avoid interference with 16, the plate can be lowered by a predetermined amount below the plate driving position.

Clamp device, fin guide device, tube guide device in the above-mentioned plate assembly device,
Each unit, such as a plate driving device, is arranged approximately symmetrically on both sides of the heat exchanger core 1. By adjusting the spacing between these left and right units, it is possible to automatically assemble heat exchanger cores of various widths. Further, by adjusting the distance between the reference clamp table 11 and the movable clamp table 12, it becomes possible to automatically assemble heat exchanger cores of various lengths.

Although one embodiment has been described above, the present invention is not limited to the embodiment described above, and various changes can be made to the constituent elements within the scope of the invention described in the claims. can.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, a heat exchanger core consisting of a pair of end plates and a large number of tubes and fins can be automatically compressed and clamped in the direction in which the tubes and fins are arranged by a clamping device. can. Further, both ends of the fin can be automatically guided by the fin guide device between adjacent tubes and between the tube and the end plate, thereby preventing both ends of the fin from protruding. Further, both ends of the end plate and the tube can be automatically held by the tube guide device, so that the distance between adjacent tubes and between the end plate and the tube can be kept constant. In this way, the side plates can be automatically and reliably driven into both ends of the correctly set tube of the heat exchanger core. Therefore, it becomes possible to automatically and reliably assemble the side plate to the heat exchanger core.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of a plate assembling device for a heat exchanger core showing an embodiment of the present invention, and FIG. 2 is a plan view of essential parts of the plate assembling device shown in FIG. 1.
FIG. 3 is a longitudinal sectional view of the plate driving device in the plate assembling device shown in FIG. 1, and FIG.
A perspective view of the vicinity of the fin guide device and tube guide device in the plate assembly device shown in the figure,
5 is a sectional view of a main part of the plate assembling device shown in FIG. 1 showing a state in the middle of the plate driving operation; FIG. 6 is a longitudinal sectional view of the fin guide device in the plate assembling device shown in FIG. 1; FIG. 7 is a plan view showing a side plate driven into the heat exchanger core, and FIG. 8 is a perspective view of a main part of the heat exchanger core shown in FIG. 7. 1... Core for heat exchanger, 2, 3... End plate, 4... Tube, 5... Fin, 10...
Clamp device, 22...fin guide device, 27
...Tube guide device, 32...Plate driving device.

Claims (1)

[Scope of Claims] 1. A clamping device for compressing and clamping a heat exchanger core formed by alternately arranging a predetermined number of tubes and fins between a pair of end plates in the direction in which the tubes and fins are arranged; a pair of fin guide devices for respectively guiding both ends of the fin between adjacent tubes and between the end plate and the tube; a pair of tube guide devices that hold both ends of the tubes to keep the distance between the adjacent tubes constant and the distance between the tubes and the end plate; A plate assembling device for a heat exchanger core, comprising a pair of plate driving devices for driving the plates.