KR200232431Y1 - Fin tube out rack part assembly of fin tube manufacturing device for heat exchange - Google Patents

Abstract

The present invention relates to a fin tube out rack part assembly of a fin tube manufacturing apparatus for a heat exchanger, comprising: a feed bogie for holding one end of a fin tube and rotating the pin tube at the same time; and a rail frame for reciprocating the transfer bogie. And, a plurality of fixed intervals are installed between the rail frame at a predetermined interval and is provided with a pair of lower guide rollers for supporting the lower portion of the pin tube, and the pin tube is installed rotatably installed on one side of the rail frame as a loading table In the fin tube out rack part assembly of the fin tube manufacturing apparatus for heat exchanger configured to guide the side guide bar, each slide bracket is installed inclined fixedly on both sides of the upper end of one or more fixing stand is installed at the starting point of the rail frame from which the transport bogie starts A cylinder bracket attached to the; An air cylinder having a cylinder body rotatably hinged to an upper end of the cylinder bracket; The invention is characterized in that the upper guide roller is rotatably installed on the roller bracket fixedly attached to the tip of each of the piston rod of the air cylinder to support the upper portion of the fin tube.

Description

Fin tube out rack part assembly of fin tube manufacturing device for heat exchange}

The present invention is a fin tube (FIN TUBE) manufacturing apparatus used for heat exchangers, the feed cart guides the rotation and transfer operation of the fin tube when the tube is rotated at a predetermined rotation speed and at the same time the end of the fin tube Fin tube out rack part assembly (FIN TUBE OUT RACK PART ASSEMBLY) of the fin tube manufacturing apparatus for heat exchanger equipped with the upper guide roller which can hold the part stably.

In general, a fin tube used for a heat exchanger in a thermal power plant, etc. is manufactured in a structure in which high frequency welding is performed while the fin is wound in a spiral shape on the outer circumferential surface of a conventional tube.

In the out-part assembly of the conventional heat exchanger fin tube manufacturing apparatus, a fixed pair of guide rollers are attached to support only the lower portion of the fin tube manufactured while being rotated at a predetermined speed by a feed cart and being fed at a constant speed. A plurality of stands are installed at regular intervals, and the guide rollers attached to each of the fixed stands are configured to support the lower portion of the fin tube until the feed cart catches one end of the fin tube and starts at the starting point and reaches the arrival point. have.

However, because the feed cart moves while rotating the pin tube, the torsional vibration is generated in the pin tube itself, and this torsional vibration becomes larger as the transport cart moves away from the starting point.

However, as the guide roller of the fixed stand supports only the lower part of the pin tube as in the prior art, when the feed cart starts to move away from the starting point, the pin tube is swung up, down, left and right by torsional vibration. Not only can the pin tube not be stably supported, but also when the transport cart reaches the point of arrival, the end of the pin tube cannot be stably supported by the stationary stand, which causes severe swings, which causes the pin tube to deviate from the stationary stand. In addition, if the tip of the pin tube is pulled out from the fixed stand, and the pin tube is crushed, the deterioration of the pin tube is caused, as well as the risk of a safety accident. It is pointed out as a problem.

The present invention has been made to solve the problems appearing in the prior art as described above, the starting point of the transport cart starting from a plurality of fixed stands installed at a predetermined interval inside the rail frame to guide the reciprocating movement of the transport cart As a means of installing a guide roller for supporting the upper part of the fin tube together with an existing guide roller for supporting the lower part of the fin tube on one or more fixed stands installed in the feed cart, the feed cart catches one end of the fin tube and starts from the starting point. It is designed to manufacture high quality fin tube while not only vibrating the pin tube but also stably supported until the transfer truck arrives at the arrival point. It is.

The present invention as a means for achieving the above object,

Holding the one end of the pin tube and rotates the pin tube and simultaneously transports, the rail frame for reciprocating movement of the transport cart, and a plurality of intervals are installed at regular intervals between the rail frame to support the bottom of the pin tube On the fin tube out rack part assembly of the fin tube manufacturing apparatus for heat exchanger, comprising a fixed stand equipped with a pair of lower guide rollers, and a side guide bar rotatably installed on one side of the rail frame to guide the completed fin tube to the loading stand. In

A cylinder bracket attached to each of the slide brackets that are inclinedly fixed to both sides of an upper end of at least one fixing stand installed at a starting point of the rail frame from which the transport cart starts;

An air cylinder having a cylinder body rotatably hinged to an upper end of the cylinder bracket;

An upper guide roller rotatably installed on a roller bracket fixedly attached to each end of each piston rod of the air cylinder to support an upper portion of the fin tube;

It is characterized by consisting of

In addition, the upper guide roller and the lower guide roller are connected to each other by a connecting bracket so that the upper guide roller rotates along the rotation radius of the connecting bracket to support or escape the upper part of the pin tube when the piston rod is retracted. It is characterized by the configuration.

1 is a side view of the pin tube out rack parts assembly for explaining the present invention.

Figure 2 is a plan view of the pin tube out rack parts assembly for explaining the present invention.

Figure 3 is a plan view of the operating state of the main part of the present invention.

4 to 6 is a cross-sectional view taken along the line A-A of Figure 1, the main operation state diagram of the present invention.

7 and 8 are cross-sectional view taken along the line B-B of Figure 1, the operation state of the fixed stand.

※ Explanation of code for main part of drawing

1: Feed cart 2: Rail frame

3: pin tube 4: fixed stand

5: upper guide roller 6: air cylinder

7: loading table 8: side guide bar

11: rotating shaft 12: collect chuck

41: fixed base 42: lifting cylinder

43: platform 44: lower guide roller

45: lifting guide bar 46: slide bracket

47: fixing bracket 48: slide bar

49: lower roller bracket 61: cylinder bracket

62: cylinder body 63: piston rod

64: upper roller bracket 81: rail bracket

82: bearing housing 83: rotating shaft

84: rotating cylinder

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a side view of the fin tube out rack parts assembly for explaining the present invention, Figure 2 is a plan view of the pin tube out rack parts assembly for explaining the present invention, Figure 3 is a plan view of the operating state of the main part of the present invention, Figure 4 to 6 is a cross-sectional view of the main part of the present invention as a cross-sectional view AA line of Figure 1, Figure 7 and 8 is a cross-sectional view of the operation state of the fixed stand as a cross-sectional view of the line BB of Figure 1,

Reference numeral 1 denotes a transfer bogie, 2 denotes a rail frame, and the transfer bogie 1 is installed on both rail frames 2 installed in parallel with the floor so as to allow reciprocating movement. In the interior of the rotating device for rotating the rotary shaft 11 protruding on one side and a moving device for reciprocating the feed cart (1) is built.

At the distal end of the rotating shaft 11 of the feed cart 1, a collect chuck 12 for holding one end of the pin tube 3 is provided.

In the middle of the rail frame 2 on both sides, a plurality of fixing stands 4 are provided at regular intervals.

The fixed stand (4) is a fixed support 41 fixed to the bottom, the lifting cylinder 42 for releasing and operating the piston rod in the vertical direction while being mounted vertically in the center of the fixing stand, and the lifting It is attached to the end of the piston rod of the cylinder, the lifting table 43 for lifting up and down, and the slide can be adjusted in the inclined direction on both inclined ends of the lifting platform to support the lower part of the fin tube 3 symmetrically on both sides. The note consists of two guide rollers 44.

In addition, the two lifting guide bars 45 for guiding the lifting operation are installed on both sides of the bottom of the lifting stand 43 of the fixing stand 4 so as to be movable upward and downward on both sides of the fixing stand 41. On both inclined ends of the platform 43, two slide brackets 46, a fixed bracket 47, and a slide bar 48 are provided symmetrically with each other, and the slide bar 48 is a slide bracket ( 46 is a structure in which a male screw (not shown) formed at its lower end with a penetrating through the fixing bracket 47 is screwed by a double nut (not shown) while being slidably penetrated. It is assembled to be adjustable.

The lower guide roller 44 is rotatably installed on the lower roller bracket 49 fixedly attached to the upper end of each of the slide bars 48.

The present invention is the transport cart 1 of the plurality of fixed stands (3) installed at a predetermined interval inside the rail frame (2) as described above to hold one end of the pint (3) to the arrival point (P ₂ ) It is characterized by installing two upper guide rollers 5 for supporting the upper part of the fin tube 3 on one or two or more fixed stands installed at the starting point (P ₁ ) starting toward.

That is, the cylinder body 62 of the air cylinder 6 to the cylinder bracket 61 fixedly attached to each of the slide brackets 46 symmetrically attached to the inclined surfaces on both sides of the platform 43 of the fixed stand 4. Is rotatably hinged, and the upper roller bracket 64 attached to the tip of the piston rod 63 of the air cylinder 6 has a structure for rotatably installing the upper guide roller 5. The upper and lower roller brackets 64 and 49, on which the upper and lower guide rollers 5 and 44 are rotatably installed, are connected by a connecting bracket 65 so that the piston rod when the air cylinder 6 is operated. The upper guide roller 5 rotates within the rotational operating range of the connecting bracket 65 in accordance with the ejection operation of the 63 so as to support the upper portion of the pin tube 3 supported on the lower guide roller 44 from above. Therefore, the pin tube 3 itself is attached to the upper and lower guide rollers 5 and 44. And it is configured so that it can be transported while being rotated in a restrained state.

Therefore, the fin tube 3 does not leave the fixed stand 4 by the upper guide roller 5 while the transport cart 1 starts from the starting point P _{1 and} moves to the arrival point P ₂ . On the other hand, the upper guide roller (5) is the pin tube (3) when the transport cart (1) arrives at the point of arrival (P ₂ ) and then send the completed pin tube (3) to the loading table (7) ) Can be released.

And between the rail frame (2) and the mounting table (7) installed on one side of the side guide bar (8) for transferring the completed fin tube (3) from the fixed stand (4) to the mounting table (7) is constant A plurality of intervals are provided, and the side guide bar 8 is rotatably installed while being inclined downward toward the mounting table 7.

That is, the side guide bar 8 is fixed to the upper end of the rotary shaft 83 of the bearing housing 82 installed perpendicular to the rail bracket 81 fixed to one rail frame 2, and the rotary shaft The lower end of the 83 is connected to the end of the piston rod of the rotating cylinder 84 is rotatably installed on one side rail frame (2).

Accordingly, the rotation shaft 83 reciprocates in the range of 90 degrees according to the appearance of the piston rod of the rotating cylinder 84, and thus the side guide bar 8 fixedly attached to the upper end of the rotation shaft 83 The inner side of the rail frame (2) so that it can receive the pin tube (3) supported on the fixed stand (4) or the rail frame (2) completely off so that the feed cart (1) can pass through It is configured to rotate.

Referring to the operation of the present invention configured as described above are as follows.

In the state where the feed cart 1 returns to the starting point P ₁ of the rail frame 2, all of the side guide bars 8 are waiting in a state of being rotated in a direction away from one rail frame 2. In addition, the lifting platforms 43 of all the fixed stands 4 installed at regular intervals inside the rail frame 2 on both sides are also waiting in the lowered operation state.

As described above, one end of the pin tube 3 is passed to the collect chuck 12 of the transport cart 1 returned to the starting point P ₁ , and then the rotating shaft 11 of the transport cart 1 is rotated. The operation to move toward the arrival point (P ₂ ) is to start the manufacturing operation of the fin tube (3), the transfer bogie (1) at the beginning of the departure point (P ₁ ) at the beginning of the fin tube (3) When the feed cart 1 is moved to a certain extent without sag, and the length of the fin tube 3 gradually increases to reach the point where sag occurs, from the fixed stand 4 installed at the starting point P ₁ It is operated in turn to support the pin tube (3), first of all will be described the operating state of the first fixed stand (4) installed at the starting point (P ₁ ).

Before the first fixing stand 4 supports the fin tube 3, the lifting platform 43 is lowered as shown in FIG. 4, and the upper guide roller 5 moves to the outside of the lower guide roller 44. In the open state, when the lifting cylinder 42 operates in such a state that the piston rod appears and operates, the lifting platform 43 is raised, and the lifting platform 43 is the lower guide roller 44 as shown in FIG. Is to be raised only to the height of supporting the lower portion of the fin tube (3), and then the air cylinder (6) is operated to activate the piston rod (63) appeared to operate the upper guide roller (5) the fin tube (3) The upper guide roller 5 installed at the tip side of the piston rod 63 of the air cylinder 6 is rotated by using the hinge pin of the lower guide roller 44 as a starting point of rotation. Because it is connected to the bracket (65) The upper guide roller 5 moving to the upper portion of the tube 3 is in a state of being moved to the upper portion of the pin tube 3 while rotating along the rotation radius of the connecting bracket 65, so that the upper guide roller 5 is It is to support the upper part of the fin tube 3 accurately without damaging the fin tube 3 (see Fig. 6).

As described above, when the upper guide roller 5 supports the upper portion of the pin tube 3, the lower portion of which is supported by the lower guide roller 44 of the fixing stand 4, the pin tube 3 itself is upper and lower portions. Since the rollers are restrained by the guide rollers (5) (44), even if the torsional vibration appears in the fin tube (3) by the rotation operation of the feed cart (1), the fin tube (3) is installed at the starting point (P ₁ ). The phenomenon of being separated from the first fixing stand 4 is prevented, and when the upper guide roller 5 is installed in the second or third fixing stand 4 as well as the first fixing stand installed at the starting point P ₁ . There is to be able to more restrain the fin tube (3).

And as the transfer cart 1 continues to move toward the arrival point (P ₂ ), the fixed stand (4) installed at a position outside the starting point (P ₁ ) is to operate in sequence, such a fixed stand ( 4) is to support only the lower portion of the fin tube (3) because only the lower guide roller 44 is installed as shown in Figures 7 and 8.

On the other hand, when the transfer cart 1 starts from the starting point (P ₁ ) side guide bars (8) that were rotated to the position off the one side rail frame (2) for rotation when the transfer cart (1) passes The cylinders 84 are sequentially rotated toward the inside of the rail frame 2 (see FIG. 2), and the side guide bars 8 rotated into the rail frame 2 are shown in FIG. 8. Likewise, it is positioned under the pin tube 3 supported by the lower guide roller 44 of each fixed stand 4.

When the transfer cart 1 reaches the point of arrival at the arrival point P ₂ , the end of the fin tube 3 is in the free end state, where the fixed stand 4 installed at the starting point P ₁ is placed. Since the upper and lower guide rollers (5) and 44 (44) installed on the lifting table (43) restrain the upper and lower parts of the fin tube (3) stably, the end of the fin tube (3) is fixed at the time of manufacture completion. The phenomenon that the deviating from the stand 4 is not generated, and when the transport cart 1 arrives at the arrival point P ₂ and becomes a state in which the manufacturing work of the fin tube 3 is completed, each fixed stand 4 The pin tube 3, which is supported on the platform 43, is transferred to the mounting table 7, in which case the air cylinder installed on the platform 43 of the stationary stand 4 at the starting point P ₁ . (6) acts first to immerse the piston rod (63) so that the upper guide roller (5) deviates from the top of the fin tube (3). Then, the lifting cylinders 42 of the respective fixed stands 4 operate at the same time to immerse the piston rod to lower and lower the lifting platform 43. When the lifting platform 43 is lowered, the fin tube 3 is operated. Since it is placed on the side guide bar (8) is to lower only the platform 43, the pin tube (3) mounted on the side guide bar (8) is placed along the downward slope of the side guide bar itself It is rolled toward (7).

As described above, when the transport cart 1 arrives at the arrival point P ₂ and the operation of transporting the fin tube 3 to the loading table 7 is completed, the side guide bars 8 may again have one side rail frame ( 2) is rotated out of the position, and then the feed cart 1 is returned to the starting point (P ₁ ) to repeat the manufacturing operation of the fin tube (3).

According to the present invention as described above, the upper guide roller for supporting the upper portion of the fin tube with the lower guide roller for supporting the lower portion of the fin tube on the stationary or more fixed stand is installed at the starting point to hold the fin tube is started As the feed cart grabs the pin tube and moves it toward the arrival point, the feed tube rotates and the pin tube rotates, so that even if the torsional vibration occurs in the pin tube, the pin tube can not be moved. At the point of reaching the point, the end of the fin tube is not severely shaken or departed from the fixed stand, which makes it possible to manufacture a high quality fin tube, and furthermore, it can prevent the safety accident. It is devised to provide.

Claims (2)

Holding the one end of the pin tube and rotates the pin tube and simultaneously transports, the rail frame for reciprocating movement of the transport cart, and a plurality of intervals are installed at regular intervals between the rail frame to support the bottom of the pin tube On the fin tube out rack part assembly of the fin tube manufacturing apparatus for heat exchanger, comprising a fixed stand equipped with a pair of lower guide rollers, and a side guide bar rotatably installed on one side of the rail frame to guide the completed fin tube to the loading stand. In A cylinder bracket attached to each of the slide brackets that are inclinedly fixed to both sides of an upper end of at least one fixing stand installed at a starting point of the rail frame from which the transport cart starts; An air cylinder having a cylinder body rotatably hinged to an upper end of the cylinder bracket; An upper guide roller rotatably installed on a roller bracket fixedly attached to each end of each piston rod of the air cylinder to support an upper portion of the fin tube; Fin tube out rack parts assembly of the fin tube manufacturing apparatus for heat exchangers, characterized in that consisting of. The method of claim 1, The upper guide roller and the lower guide roller are connected to each other by a connecting bracket so that the upper guide roller rotates along the rotation radius of the connecting bracket to support or escape the upper part of the pin tube when the piston rod is retracted. Fin tube out rack parts assembly of the fin tube manufacturing apparatus for heat exchangers, characterized in that.