JPH1170424A - Feeder for heat exchange tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and surely synchronize the rotation of a tube feed member and the rotation of feed rods by providing a tube feed member drive mechanism which is connected to a feed rod drive mechanism for rotating the pair of feed rods via a decelerating mechanism and rotates a tube feed member. SOLUTION: A pair of feed rods 51 are rotated by a feed rod drive mechanism 67, and a tube feed member 59 is rotated by a tube feed member drive mechanism 79 which is connected to the feed rod drive mechanism 67 via a decelerating mechanism 81. The rotation of the tube feed member 59 and the rotation of the feed rods can be thus easily and surely synchronized. The tube 53 is pressurized from the rear end side by the rear face 55a of a tube guide groove 55 so that the tube 53 stored in a tube storage groove 63 is detached from the rear end side. The tube 53 in the tube storage groove 63 can be thus surely separated from the tube storage groove 63.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary assembling apparatus for a heat exchanger core for temporarily assembling a heat exchanger core by alternately arranging tubes and corrugated fins. The present invention relates to a heat exchanger tube supply device for automatic supply.

[0002]

2. Description of the Related Art Conventionally, as a temporary assembling apparatus of a heat exchanger core for temporarily assembling a heat exchanger core by alternately disposing tubes and corrugated fins, for example, one disclosed in Japanese Utility Model Laid-Open No. 4-35831. It has been known. FIG. 6 shows a heat exchanger core temporary assembling device disclosed in this publication. In this device, a pair of feed shafts 11,
13 are arranged to face each other.

A pair of feed shafts 11 and 13 has a tube 1
The tube guide grooves 11a, 13a for guiding the end of the tube 5 are formed in a spiral shape, and the tube guide grooves 11a, 11a are formed.
Fin guides 11b, 13b for guiding the end of the corrugated fin 17 are formed in a spiral shape between the fin guides 11b, 13a. The outer diameter of the fin guides 11b, 13b is larger than the outer diameter of the tube guide grooves 11a, 13a.

A pair of feed shafts 11 and 13 are provided with tube guide grooves 11a and 13a and fin guide portions 11b and 13b.
Are formed in opposite directions and rotated in the opposite direction. The spiral pitch is reduced from the material supply unit 19 to the temporary assembly unit 21. In the heat exchanger core temporary assembling apparatus described above, the tube 1 is located between the tube guide grooves 11a and 13a in the rod-shaped member supply section 19A of the material supply section 19.
5 are supplied, and the corrugated fin 17 is provided between the fin guides 11b and 13b in the fin supply unit 19B.
Is supplied.

Then, the tube 15 and the corrugated fin 17 are moved in the tube guide grooves 11a, 13a and the fin guide portions 11b, 13b by the rotation of the feed shafts 11, 13, and the distance therebetween is reduced.
And the corrugated fins 17 are brought into contact with each other, and the heat exchanger core 23 is temporarily assembled. Usually, a predetermined number of tubes 1
After the supply of 5, the reinforcement 25 is supplied in place of the tube 15 in the rod-shaped member supply section 19A, and the heat exchanger core 23 having the reinforcements 25 disposed at both ends is temporarily assembled.

[0006] Conventionally, as a supply device of a tube for a heat exchanger for supplying the tube 15 to such a temporary assembly device of a heat exchanger core, there is known a device disclosed in the above-mentioned publications. FIG. 7 shows a heat exchanger tube supply device of this type. In this device, a pair of cylindrical tube supply members 27 are disposed between the ends of a pair of feed shafts 11 and 13. ing.

[0007] The tube supply member 27 includes a feed shaft 1
1, 13 has a rotating shaft 29 in a direction perpendicular to the longitudinal direction, and a tube accommodation groove 27a for accommodating the tube 15 is formed at a predetermined angle on the outer periphery. The pair of feed shafts 11 and 13 are rotated by a feed shaft drive mechanism 35 including a motor 31 and a transmission mechanism 33.

The pair of tube supply members 27 are rotated by a tube supply member drive mechanism 41 including a motor 37 and a transmission mechanism 39. In order to synchronize the rotation of the tube supply member 27 with the rotation of the feed shafts 11 and 13, a control device 43 for controlling the rotation of the motors 31 and 37 is provided.

[0009]

However, in such a conventional heat exchanger tube supply apparatus, a pair of feed shafts 11 and 13 and a pair of tube supply members 27 are connected by a feed shaft drive mechanism 35 and a tube. Supply member drive mechanism 4
1 to rotate independently of each other.
3, the tube supply member 2
In order to improve the productivity by increasing the number of rotations of the feed shaft 7 and the feed shafts 11 and 13, there is a problem that it is difficult to synchronize the rotation of the tube supply member 27 with the rotation of the feed shafts 11 and 13. .

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and a tube supply device for a heat exchanger which can easily and reliably synchronize the rotation of a tube supply member with the rotation of a feed shaft. The purpose is to provide.

[0011]

According to a first aspect of the present invention, there is provided a heat exchanger tube supply device which is disposed in parallel with a predetermined interval in a horizontal direction and is opposed to each other, and a tube guide into which an end of the heat exchanger tube is inserted. A pair of feed shafts in which a groove is formed in a spiral shape, between the pair of feed shafts, are disposed along the longitudinal direction of the feed shafts, and end portions are inserted into the tube guide grooves of the pair of feed shafts. Guide means for guiding the tube along the longitudinal direction of the feed shaft, and rotatably disposed between the pair of feed shafts, and housed in a tube housing groove formed at a predetermined angle on the outer periphery. A tube supply member that supplies the tube such that an end of the tube is inserted into a tube guide groove of the feed shaft, a feed shaft drive mechanism that rotates the pair of feed shafts, and the feed shaft drive mechanism. Connected via a speed reduction mechanism Is characterized as having a tube feeding member driving mechanism for rotating the tube supply member.

According to a second aspect of the present invention, there is provided a heat exchanger tube supply device, wherein the tube supply member and the feed shaft are inserted into a tube receiving groove of the tube supply member. When the front end and the rear end of the accommodated tube are located in the tube contact area of the tube guide groove of the feed shaft, the rear end of the tube is arranged to contact the rear surface of the tube guide groove. It is characterized by becoming.

According to a third aspect of the present invention, there is provided a heat exchanger tube supply device, wherein the tube supply member and the feed shaft are provided in a tube receiving groove of the tube supply member. The tube to be housed is arranged so as to come into contact with the guide means after completely detached from the tube housing groove.

According to the first aspect of the present invention, a pair of feed shafts are rotated by a feed shaft drive mechanism, and a tube feed member drive connected to the feed shaft drive mechanism via a speed reduction mechanism. The mechanism rotates the tube supply member. In the heat exchanger tube supply device according to the second aspect, when the front end and the rear end of the tube accommodated in the tube accommodation groove of the tube supply member are located within the tube contact area of the tube guide groove of the feed shaft, The rear end abuts on the rear surface of the tube guide groove, the tube is pressed from the rear end side by the rear surface of the tube guide groove, and the tube housed in the tube housing groove is separated from the rear end side.

According to the third aspect of the present invention, the tube accommodated in the tube accommodating groove of the tube supplying member is brought into contact with the guide means after completely detached from the tube accommodating groove, and is supported by the guide means. Is done.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show a main part of an embodiment of a heat exchanger tube supply apparatus according to the present invention. In the drawings, reference numeral 51 denotes a pair of feed shafts. The pair of feed shafts 51 are opposed to each other in parallel at predetermined intervals in the horizontal direction.

A tube guide groove 55 for guiding an end of a tube 53 for a heat exchanger is spirally formed in the pair of feed shafts 51. Note that the tube guide grooves 55 of the pair of feed shafts 51 are formed in opposite spiral directions, have a relationship between a right screw and a left screw, and are rotated in opposite directions. A plate-like guide member 57 is horizontally arranged between the pair of feed shafts 51 along the longitudinal direction of the feed shaft 51.

The guide member 57 guides the tube 53 whose end 53 a is inserted into the tube guide groove 55 of the pair of feed shafts 51 along the longitudinal direction of the feed shaft 51. Then, a base member 58 of the apparatus is arranged below the guide member 57. A pair of tube supply members 59 that supply the tubes 53 to the pair of feed shafts 51 are disposed between the pair of feed shafts 51.

The tube supply member 59 has a rotation shaft 61 in a direction perpendicular to the longitudinal direction of the pair of feed shafts 51. On the outer periphery of the tube supply member 59, rectangular tube housing grooves 63 for housing the tubes 53 are formed at a predetermined angle, for example, at eight locations. The tube supply member 59 supplies the tube 53 accommodated in the tube accommodation groove 63 such that the end 53 a of the tube 53 is inserted into the tube guide groove 55 of the feed shaft 51.

Above the tube supply member 59, a tube case 65 for supplying the tube 53 to the tube supply member 59 is arranged. A plurality of tubes 53 are stacked in the tube case 65, and the tubes 53 in the tube case 65 are supplied into the tube receiving grooves 63 in synchronization with the rotation of the tube supply member 59.

In FIG. 1, reference numeral 67 denotes a pair of feed shafts 5.
1 shows a feed shaft driving mechanism for rotating the feed shaft 1. The feed shaft driving mechanism 67 has a motor 69 and a first rotating shaft 71 rotated by the motor 69. First rotating shaft 7
A first bevel gear 73 is disposed at 1 at an interval corresponding to the pair of feed shafts 51.

On the other hand, a second rotary shaft 75 is connected to the pair of feed shafts 51, and a second bevel gear 77 is disposed at an end of the second rotary shaft 75. And
The second bevel gear 77 is connected to the first rotating shaft 71 by the first bevel gear 77.
Of the bevel gear 73. In FIG. 1, reference numeral 79 denotes a tube supply member drive mechanism 79 that rotates the pair of tube supply members 59.

The tube supply member drive mechanism 79 is connected to the feed shaft drive mechanism 67 via a speed reduction mechanism 81. In this embodiment, the speed reduction mechanism 81 includes a first gear 83 fixed to the first rotation shaft 71 and a second gear 8 fixed to the rotation shaft 61 that rotates the tube supply member 59.
5 is provided.

The first gear 83 and the second gear 85 are meshed with each other. For example, when the number of tube receiving grooves 63 formed in the tube supply member 59 is eight, The number of teeth of the gear 85 is eight times the number of teeth of the first gear 83. In the above-described heat exchanger tube supply device, when the motor 69 is driven, the first rotating shaft 71 is rotated, and the rotation is transmitted to the second rotating shaft 71 via the first bevel gear 73 and the second bevel gear 77. 75 and the pair of feed shafts 51 is rotated.

The rotation of the first rotary shaft 71 is transmitted to the rotary shaft 61 via the first gear 83 and the second gear 85, and the pair of tube supply members 59 is connected to the pair of feed shafts 5.
It is rotated in synchronization with one rotation.

FIG. 3 shows the positional relationship between the tube supply member 59 and the feed shaft 51 described above. In this figure, for convenience of explanation, the central axis O1 of the tube supply member 59 and the central axis O2 of the feed shaft 51 are positioned in parallel. In this embodiment, the tube supply member 59
And the feed shaft 51, when the front end 53b and the rear end 53c of the tube 53 housed in the tube housing groove 63 of the tube supply member 59 are located in the tube contact area 87 of the tube guide groove 55 of the feed shaft 51, The rear end 53c of the tube 53 is arranged so as to contact the rear surface 55a of the tube guide groove 55.

Here, the tube contact area 87 of the tube guide groove 55 of the feed shaft 51 is an imaginary area indicated by a two-dot chain line in FIG.
Is an area where the end portion 53a of the above and the tube guide groove 55 overlap. The tube contact area 87 is formed by the tube supply member 59 from the bottom surface 55 b of the tube guide groove 55 of the feed shaft 51.
A vertical line 91 drawn perpendicular to a center line 89 connecting the center axis O1 of the feed shaft 51 and the center axis O2 of the feed shaft 51 is used as a boundary.

In this embodiment, a line drawn in parallel with the center line 89 from the intersection P between the vertical line 91 and the outer periphery of the feed shaft 51 is referred to as a first contact line 93 for convenience.
That. In this embodiment, the tube supply member 5
9 and the feed shaft 51 are arranged such that the tube 53 accommodated in the tube accommodating groove 63 of the tube supply member 59 comes into contact with the guide member 57 after completely detaching from the tube accommodating groove 63.

That is, the tube 53 is pressed by the rear surface 55a of the tube guide groove 55 indicated by a dotted line in FIG. Is arranged. 4 and 5 show the relative positional relationship between the tube supply member 59 and the feed shaft 51 as time elapses. In the state shown in FIG. 4A, the tube receiving groove 63 of the tube supply member 59 is shown. Is located above the first hit line 93,
Tube contact area 8 of tube guide groove 55 of feed shaft 51
7 is located outside.

In the state shown in (b), the tube 53 housed in the tube housing groove 63 of the tube supply member 59 is shown.
The front end 53b is below the initial contact line 93, and the rear end 5
3c is positioned above the initial contact line 93 and the feed shaft 5
Only the lower part of the tube 53 is located in the tube contact area 87 of the one tube guide groove 55. In the state shown in (c), the tube receiving groove 63 of the tube supply member 59 is provided.
The tube 53 housed in the front end 53b and the rear end 5
3c is positioned below the initial contact line 93, and the feed shaft 5
The entire tube 53 is located in the tube contact area 87 of the one tube guide groove 55.

The rear end 53c of the tube 53 is in contact with the rear surface 55a of the tube guide groove 55. FIG.
In the state shown in (d), the tube 53 housed in the tube housing groove 63 of the tube supply member 59 is pressed from the rear end 53c side by the rear surface 55a of the tube guide groove 55, and the rear end 53c side of the tube 53 is Housing groove 63
Have been removed from

In the state shown in (e), the tube 53 housed in the tube housing groove 63 of the tube supply member 59 is shown.
The rear end 53c is formed by the rear surface 55a of the tube guide groove 55.
And the front end 53b is pressed, and the rear end 53 of the tube 53 is pressed.
The c side and the tip 53b side are completely separated from the tube housing groove 63. In the state shown in (f), the distal end 53b of the tube 53 separated from the tube housing groove 63 is in contact with the upper surface of the guide member 57 and is supported by the guide member 57.

In the heat exchanger tube supply apparatus configured as described above, the pair of feed shafts 51 is rotated by the feed shaft drive mechanism 67 and connected to the feed shaft drive mechanism 67 via the speed reduction mechanism 81. Tube supply member drive mechanism 79
As a result, the tube supply member 59 is rotated, so that the rotation of the tube supply member 59 and the rotation of the feed shaft 51 can be easily and reliably synchronized.

In the above-described heat exchanger tube supply device, the tube 53 is connected to the rear surface 5 of the tube guide groove 55.
5a is pressed from the rear end 53c side, and the tube 53 housed in the tube housing groove 63 is separated from the rear end 53c side.
Can be reliably separated from the tube receiving groove 63.

Further, in the above-described apparatus for supplying tubes for a heat exchanger, the tube housing groove 6 of the tube supply member 59 is provided.
After the tube 53 housed in the tube 3 is completely separated from the tube housing groove 63, the tube 53 comes into contact with the guide member 57 and is supported by the guide member 57, so that the tube 53 is housed in the tube housing groove 63. Thus, the collision with the guide member 57 is eliminated, and the possibility that the tube 53 is damaged can be reliably eliminated.

In the above-described embodiment, an example in which the first gear 83 and the second gear 85 constitute the reduction mechanism 81 has been described. However, the present invention is not limited to this embodiment. Alternatively, the speed reduction mechanism may be configured using a commercially available speed reducer or the like. Further, in the above-described embodiment, an example in which the rotating shafts 61 of the pair of tube supply members 59 are configured in common has been described. However, the present invention is not limited to such an embodiment. 7
One rotation of the tube supply member 5 via a separate drive mechanism
9 may be transmitted.

Further, in the above-described embodiment, an example in which the tube 53 is guided by the guide member 57 has been described. However, the present invention is not limited to such an embodiment, and for example, the width between the tube and the corrugated fin is reduced. In the case of the same configuration, the guide may be configured to be directly guided by the base member 58.

[0039]

As described above, in the heat exchanger tube supply device according to the first aspect, the pair of feed shafts are rotated by the feed shaft drive mechanism, and are connected to the feed shaft drive mechanism via the speed reduction mechanism. Since the tube supply member is rotated by the tube supply member drive mechanism, the rotation of the tube supply member and the rotation of the feed shaft can be easily and reliably synchronized.

According to the second aspect of the present invention, the tube is pressed from the rear end side by the rear surface of the tube guide groove, and the tube housed in the tube housing groove is separated from the rear end side. The tube in the tube receiving groove can be reliably separated from the tube receiving groove. According to the third aspect of the present invention, the tube accommodated in the tube accommodating groove of the tube supply member comes into contact with the guide means after being completely separated from the tube accommodating groove, and is supported by the guide means. In the state where the tube is housed in the tube housing groove, the tube does not collide with the guide means, and the possibility of damage to the tube can be reliably eliminated.

[Brief description of the drawings]

FIG. 1 is a top view showing a main part of an embodiment of a heat exchanger tube supply device of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

3 is an explanatory diagram showing an arrangement relationship between a tube supply member and a feed shaft of the heat exchanger tube supply device of FIG. 1;

FIG. 4 is an explanatory diagram showing a state of supply of tubes from a tube supply member to a feed shaft in the heat exchanger tube supply device of FIG. 1 over time.

FIG. 5 is an explanatory diagram showing a state of supply of tubes from a tube supply member to a feed shaft in the heat exchanger tube supply device of FIG. 1 over time.

FIG. 6 is a cross-sectional view showing a conventional heat exchanger core temporary assembling apparatus.

FIG. 7 is an explanatory view showing a conventional heat exchanger tube supply device.

[Explanation of symbols]

 51 feed shaft 53 tube 53a end 53b tip 53c rear end 55 tube guide groove 55a rear surface 57 guide member 59 tube supply member 63 tube accommodation groove 67 feed shaft drive mechanism 79 tube supply member drive mechanism 81 reduction mechanism 87 tube contact area

Claims (3)

[Claims] 1. An end portion (53) of a tube (53) for a heat exchanger, which is disposed in parallel and opposed to each other at a predetermined interval in a horizontal direction.
a) a pair of feed shafts (51) in which a tube guide groove (55) into which the tube guide groove (55) is inserted is formed between the pair of feed shafts (51) along the longitudinal direction of the feed shaft (51). The tube (53), which is arranged at an end and has an end (53a) inserted into the tube guide groove (55) of the pair of feed shafts (51), is guided along the longitudinal direction of the feed shaft (51). A guide means (57) and a rotatable arrangement between the pair of feed shafts (51);
A tube receiving groove (6) formed at a predetermined angle on the outer circumference
A tube supply member (59) for supplying the tube (53) contained in the tube (53) such that the end (53a) of the tube (53) is inserted into the tube guide groove (55) of the feed shaft (51). ), A feed shaft drive mechanism (67) that rotates the pair of feed shafts (51), and a feed shaft drive mechanism (67) connected via a speed reduction mechanism (81) to the tube supply member (59). And a tube supply member driving mechanism (79) for rotating the tube. 2. The heat exchanger tube supply device according to claim 1, wherein the tube supply member (59) and the feed shaft (51) are connected to a tube receiving groove (63) of the tube supply member (59). (5) of the tube (53) accommodated in the
3b) and the rear end (53c) are located in the tube contact area (87) of the tube guide groove (55) of the feed shaft (51) when the rear end (53) of the tube (53) is positioned.
c) is a rear surface (55a) of the tube guide groove (55).
A heat exchanger tube supply device, which is arranged so as to be in contact with a tube. 3. The heat exchanger tube supply device according to claim 2, wherein the tube supply member (59) and the feed shaft (51) are connected to a tube receiving groove (63) of the tube supply member (59). The tube (53) accommodated in the tube is disposed so as to come into contact with the guide means (57) after completely detached from the tube accommodating groove (63). apparatus.