CN204934235U

CN204934235U - A kind of finned tube production line and system thereof

Info

Publication number: CN204934235U
Application number: CN201520524080.0U
Authority: CN
Inventors: 余以刚; 王晓伟
Original assignee: BEIJING TERASOLAR PHOTOTHERMAL TECHNOLOGY Co Ltd
Current assignee: BEIJING TERASOLAR PHOTOTHERMAL TECHNOLOGY Co Ltd
Priority date: 2015-07-17
Filing date: 2015-07-17
Publication date: 2016-01-06
Anticipated expiration: 2025-07-17

Abstract

The utility model provides a kind of finned tube production line and system thereof, and this finned tube production line comprises along the feeding device that fin direction of belt travel is arranged successively, apparatus for bending and fin wind; Wherein, fin wind comprises supporting frame, is arranged in clamping rotating mechanism on supporting frame and hold-down mechanism; Wherein, this clamping rotating mechanism for clamping rotation base tube, and impels base tube to move back and forth along the bearing of trend of base tube; This hold-down mechanism comprises contact roller, and the wound portion of fin band is resisted against on the outer wall of base tube by contact roller, and the wound portion of fin band and the outer wall of base tube is extruded fit.Hold-down mechanism is adopted to implement fitting tightly of wound portion in fin band and base tube outer wall, in fin band winding process, make the outer wall of the wound portion in fin band and base tube keep extruding always and fit, thus ensure that fitting tightly of fin band and base tube, and then improve the radiating efficiency of finned tube.

Description

Finned tube production line and system thereof

Technical Field

The utility model relates to a finned tube production field especially relates to a finned tube production line and system thereof.

Background

In order to improve the heat exchange efficiency, a fin tube is generally obtained by winding a fin tape around the outer wall of a base tube. Utilize stamping device to carry out the punching press with the fin baseband and obtain the fin area, the fin area is bent through bending device and is formed the fin area that has winding portion and pick part, wherein, the winding portion in fin area and the outer wall laminating of parent tube, and the pick part in fin area extends to the direction of keeping away from the parent tube outer wall to increased the heat radiating area of parent tube, and then reached the purpose that improves parent tube heat exchange efficiency.

At present, the fin tube is usually processed by pre-processing a groove with a certain width and depth on a base tube, then a winding part of a fin belt is embedded on the base tube on a lathe, and the winding part of the fin belt is tied in the groove by virtue of pretightening force in the winding process, so that the fin belt is ensured to be tightly wound on the base tube. In the winding process, because the fin belt is in contact with the outer wall of the base pipe by virtue of the pretightening force, the fin belt is broken due to overlarge pretightening force, the production efficiency of the finned pipe is reduced, or the winding part of the fin belt cannot be tightly attached to the outer wall of the base pipe due to the undersize pretightening force, so that the heat dissipation efficiency of the finned pipe is influenced.

Disclosure of Invention

An object of the utility model is to provide a finned tube production line, at fin winding in-process, it can guarantee that the winding portion in the fin area closely laminates with the outer wall of parent tube.

An object of the utility model is to provide a finned tube production line system, at fin winding in-process, it can guarantee that the winding portion in the fin area closely laminates with the outer wall of parent tube.

The finned tube production line provided by the utility model comprises a feeding device, a bending device and a fin winding device which are sequentially arranged along the moving direction of a fin belt; wherein,

the fin winding device comprises a support frame body, a clamping and rotating mechanism and a pressing mechanism, wherein the clamping and rotating mechanism and the pressing mechanism are arranged on the support frame body; wherein,

the clamping and rotating mechanism is used for clamping and rotating the base pipe and enabling the base pipe to reciprocate along the extending direction of the base pipe;

the pressing mechanism comprises a pressing wheel, and the pressing wheel enables the winding part in the fin belt to abut against the outer wall of the base pipe and enables the winding part in the fin belt to be attached to the outer wall of the base pipe in an extrusion mode.

Further, the number of the pressing wheels is two, the two pressing wheels are arranged side by side, and an accommodating space for accommodating the blade portions in the fin belt is formed between the two pressing wheels.

Further, the pressing mechanism further comprises an auxiliary wheel which is arranged side by side with the pressing wheel, the pressing wheel is located on the upstream of the movement direction of the base pipe, the auxiliary wheel is located on the downstream of the movement direction of the base pipe, and an accommodating space for accommodating the tooth piece parts in the fin belt is formed between the pressing wheel and the auxiliary wheel.

Further, the number of the compression mechanisms is two, and the two compression mechanisms are arranged at intervals in the extending direction of the base pipe.

Further, the width of the pressing wheel is smaller than or equal to the width of the winding part of the fin strip.

Further, the wheel width of the pressing wheel is greater than or equal to the width of the wound portion of the fin band, and the wheel width of the auxiliary wheel is smaller than the width of the wound portion of the fin band.

Furthermore, the fin winding device also comprises at least one limiting mechanism used for auxiliary positioning of the base tube, the limiting mechanism comprises at least three limiting wheels, the limiting wheels are arranged at intervals in the extending direction of the base tube, and the limiting wheels are uniformly distributed around the outer peripheral surface of the base tube at equal included angles; wherein the spacing distance between two adjacent limiting wheels is equal to the width of the winding part in the fin strip.

Furthermore, the device also comprises a driving mechanism, wherein the driving mechanism is connected with the limiting mechanism, and the driving mechanism drives the limiting wheels to move.

Further, the bending device comprises a plurality of bending units which are arranged at intervals in the moving direction of the fin strip; the fin bending unit comprises a base, a pressing member arranged on the base and used for pressing a winding part in a fin strip, a bending mechanism used for punching and bending a tooth part in the fin strip, and at least one conveying wheel used for conveying the fin strip; wherein the conveying wheel is arranged at any end of the pressing component along the moving direction of the fin strip, and the bending mechanism is arranged at any side of the pressing component along the moving direction of the fin strip.

Further, the number of the conveying wheels is two, and the two conveying wheels are respectively disposed at both ends of the pressing member in the moving direction of the fin belt.

Further, a first limiting part is formed on the winding part in the fin belt, a second limiting part matched with the first limiting part is arranged on the outer peripheral surface of the transmission wheel, and the transmission wheel is meshed with the winding part in the fin belt through the first limiting part and the second limiting part.

Furthermore, the first limiting part is a limiting hole, the second limiting part is a limiting bulge, and the limiting hole and the limiting bulge are in complementary fit.

Further, the bending mechanism comprises a stamping head, and the width of the stamping head in the moving direction of the fin belt is equal to integral multiple of the tooth root width of the tooth piece part in the fin belt.

Further, the pressing member includes a pressing portion having a width in the fin band moving direction that is greater than or equal to a width of the press head in the fin band moving direction.

Further, the fin straightening device is arranged between the fin bending device and the fin winding device.

The utility model provides a finned tube production line system, including two above-mentioned finned tube production lines of any item, and the stamping device that sets up in the upper reaches of loading attachment, the stamping device forms two symmetrical fin belts with fin baseband punching press, one of them fin belt is carried to one of them finned tube production line; and the other fin belt is conveyed to the other fin tube production line.

Further, the movement direction of the base tube in one of the finned tube production lines is opposite to the movement direction of the base tube in the other finned tube production line.

Compared with the prior art, the utility model provides a finned tube production line adopts hold-down mechanism to implement the inseparable laminating of winding portion and parent tube outer wall in the fin area, makes the winding portion in the fin area keep the extrusion laminating always with the outer wall of parent tube in the fin area winding process to guarantee the inseparable laminating of fin area with the parent tube, and then improved the radiating efficiency of finned tube.

In a further technical scheme, an accommodating space for accommodating the tooth parts in the fin belt is formed between the two pressing wheels, so that the accommodating space is provided for the tooth parts in the fin belt, and the winding stability of the fin belt is improved.

In a further technical scheme, when the pressing mechanism comprises two pressing wheels, the wheel width of the pressing wheels is approximately equal to the width of the winding part, namely the wheel width is not larger than the width of the winding part in the fin belt, and when the wheel width of the pressing wheels is set to be equal to the width of the winding part in the fin belt, the pressing wheels can be ensured to be tightly attached to and cover the wide surface of the winding part, so that the wide surface of the winding part is completely extruded and attached to the outer wall of the base pipe; when the width of the wheel with the pinch roller is set to be smaller than the width of the winding part, the adjacent tooth piece parts wound in the fin belt on the base pipe can be prevented from colliding with the pinch roller to delay the winding operation of the fin belt, so that the fin belt is ensured to be wound on the base pipe continuously and orderly, and the winding efficiency of the fin belt is improved.

In a further technical scheme, the pressing mechanism can also comprise a pressing wheel and an auxiliary wheel, the pressing wheel is arranged at the upstream of the movement direction of the base pipe, the auxiliary wheel is arranged at the downstream of the movement direction of the base pipe, and an accommodating space for accommodating the toothed sheet part in the fin belt is formed between the pressing wheel and the auxiliary wheel; by this arrangement, another structure of the pressing mechanism is provided, which provides more options for the design and manufacture of the pressing mechanism.

In a further technical solution, when the pressing mechanism includes a pressing wheel and an auxiliary wheel arranged side by side with the pressing wheel, the wheel width of the pressing wheel should be approximately equal to the width of the winding part in the fin strip, i.e. the wheel width of the pressing wheel cannot be smaller than the width of the winding part in the fin strip, and the wheel width of the auxiliary wheel should be smaller than the width of the winding part in the fin strip. When the wheel width of the pressing wheel is set to be equal to the width of the winding part in the fin belt, the pressing wheel can be ensured to be tightly attached to and cover the wide surface of the winding part, so that the wide surface of the winding part is completely extruded and attached to the outer wall of the base pipe; when the wheel width with the auxiliary wheel sets up to be less than the width of winding portion, can avoid adjacent tooth piece portion of twining in the fin area on the base tube to collide mutually with the auxiliary wheel and delay the winding process in fin area to guarantee that the fin area continues to twine in order on the base tube, and then promote the winding efficiency of fin area.

In a further technical scheme, two pressing mechanisms can be arranged at intervals in the extending direction of the base pipe, when the base pipe moves towards one direction of the extending direction of the base pipe, the pressing mechanism is utilized to complete winding of the fin belt to form a finned pipe, the finned pipe is dismounted, the other base pipe is placed in the fin winding device, and when the base pipe moves towards the other direction of the extending direction of the base pipe, the pressing mechanism is utilized to complete winding of the fin belt to form the finned pipe. The two pressing mechanisms can be used for winding the base pipe in the two directions of the extension direction of the base pipe, so that the working efficiency of the fin belt winding device is improved.

In a further technical scheme, the limiting mechanism for auxiliary positioning of the base pipe is arranged, so that the base pipe can be prevented from jumping greatly when the fins are wound; the plurality of limiting wheels are arranged at intervals in the extending direction of the base pipe, so that the stability of the large-size base pipe during fin winding is maintained, the base pipe is ensured to be always kept in a stable state in the fin winding process, and the finned pipe with better heat dissipation performance is obtained conveniently; because the plurality of limiting wheels are uniformly distributed around the periphery of the base tube at equal included angles, the supporting force of the limiting mechanism on the base tube can be ensured to be balanced, and the stability of the base tube in the process of winding fins can be maintained; because the spacing distance between two adjacent limiting wheels is equal to the width of the winding part in the fin belt, the limiting wheels are prevented from colliding with the toothed sheet part in the fin belt, and the fin belt is ensured to be wound smoothly.

In a further technical scheme, through increasing the actuating mechanism who links to each other with stop gear, the removal of the spacing wheel of actuating mechanism drive to the spacing wheel of drive removes, and plays limiting displacement with the parent tube contact, perhaps drives spacing round and keeps away from the parent tube, forms the space of passing through that the centre gripping rotary mechanism of being convenient for passes through, avoids spacing round and centre gripping rotary mechanism to interfere, guarantees going on smoothly of fin winding process.

In a further technical scheme, the fin belt is subjected to segmented stamping and bending by the aid of the fin bending units, so that fin bending efficiency is improved, the structure of the fin bending units is simplified, and installation and maintenance are facilitated.

In a further technical scheme, the conveying wheels are respectively arranged at the two ends of the pressing component along the moving direction of the fin belt, so that the fin belt can conveniently and smoothly pass through the bending device, and the moving stability of the fin belt is enhanced.

In a further technical scheme, the base is provided with the accommodating space for accommodating the conveying wheel, so that the design of the bending device is simplified, and the bending device is convenient to mount and use.

In a further technical scheme, the transmission wheel is meshed with the winding part in the fin belt through the first limiting part and the second limiting part, so that the fin belt is guided, the fin belt is convenient to move smoothly, and meanwhile, the fin can be prevented from being separated when the fin is bent.

In a further technical scheme, the first limiting part is a limiting hole, the second limiting part is a limiting protrusion, the design of the first limiting part and the second limiting part is simplified, and the structural complexity of the fin bending device is reduced.

In a further technical scheme, the width of the stamping head in the moving direction of the fin belt is set to be equal to the integral multiple of the tooth root width of the tooth blade part in the fin belt, and when the fin belt is subjected to segmented stamping and bending, the stamping head of the bending mechanism can be ensured to completely act on the tooth blade part of the section of the fin belt in the fin belt, so that the stamping and bending efficiency of the bending mechanism is improved.

In a further technical scheme, the width of the pressing part in the moving direction of the fin belt is set to be larger than or equal to the width of the punching head in the moving direction of the fin belt, so that the winding part of the fin belt is not tilted when the tooth piece part of the fin belt is punched and bent, and the fin belt is smoothly punched and bent.

In a further technical scheme, the fin guide device is arranged between the fin bending device and the fin winding device, so that the fin strip before entering the fin winding device is subjected to guide treatment, and the fin strip is conveniently wound in the fin winding device.

Compared with the prior art, the utility model provides a finned tube production line system is guaranteeing that winding portion in the fin area closely laminates with the outer wall of parent tube, when improving the radiating efficiency of finned tube, still can be used for the winding of parent tube simultaneously with the fin area of two mutual symmetries through the punching press formation, has improved the production efficiency of finned tube.

In a further technical scheme, the moving direction of the substrate tube in one finned tube production line is opposite to the moving direction of the substrate tube in the other finned tube production line. The fin base band forms two fin areas of mutual symmetry after stamping device punching press, and the direction of buckling of the tooth piece portion of these two fin areas is opposite, when implementing the fin area winding, for avoiding the tooth piece portion of fin area and pinch roller to bump to set up the direction of motion of the base pipe in two finned tube production lines to opposite.

Drawings

The invention will be described in more detail hereinafter on the basis of non-limiting examples only and with reference to the accompanying drawings. Wherein:

fig. 1 and 2 are schematic structural diagrams provided in the first embodiment of the present invention.

Fig. 3 is a schematic structural diagram provided in the second embodiment of the present invention.

Fig. 4 and 5 are schematic structural diagrams provided in the third embodiment of the present invention.

Fig. 6 to 9 are schematic structural views provided in the fourth embodiment of the present invention.

Fig. 10 to 14 are schematic structural views provided in a fifth embodiment of the present invention.

Description of the drawings:

1-fin belt, 2-support frame body, 3-clamping rotating mechanism, 4-base pipe, 5-pressing mechanism, 6-pressing wheel, 7-sliding mechanism, 8-limiting mechanism, 9-limiting wheel, 10-driving mechanism, 11-containing space, 12-first fin belt, 13-second fin belt, 14-winding part, 15-tooth piece part, 16-fin bending unit, 17-base, 18-pressing member, 19-bending mechanism, 20-conveying wheel, 21-pressing part, 22-limiting bulge, 23-limiting hole, 24-feeding device, 25-bending device, 26-fin guide device and 27-fin winding device

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example one

As shown in fig. 1 and 2, the finned tube production line provided by the embodiment comprises a feeding device 24, a bending device 25 and a fin winding device 27 which are sequentially arranged along the moving direction of a fin strip; as shown in fig. 2, the fin winding device 27 includes a support frame 2, a clamping and rotating mechanism 3 disposed on the support frame 2, and a pressing mechanism 5; wherein, the clamping and rotating mechanism 3 is used for clamping and rotating the base pipe 4 and promoting the base pipe 4 to reciprocate along the extending direction of the base pipe 4; the pressing mechanism 5 comprises a pressing wheel 6, and the pressing wheel 6 enables the winding part of the fin belt to abut against the outer wall of the base pipe 4 and enables the winding part of the fin belt to be attached to the outer wall of the base pipe 4 in an extrusion mode.

The finned tube production line that this embodiment provided adopts hold-down mechanism 5 to implement the inseparable laminating of winding portion in the fin area and 4 outer walls of parent tube, twines at the fin area and keeps the extrusion laminating always with the outer wall of parent tube 4 in making the winding portion in the fin area in-process to guaranteed the inseparable laminating of fin area and parent tube 4, and then improved the radiating efficiency of finned tube, solved among the prior art because of the problem that the finned tube radiating efficiency that the winding portion in fin area and the outer wall laminating of parent tube 4 do not closely lead to reduces.

In one embodiment, the fin winding device may further include a sliding mechanism 7 disposed on the support frame body 2, wherein the sliding mechanism 7 moves on the support frame body 2 along the extending direction of the base pipe 4 and perpendicular to the extending direction of the base pipe 4; the pressing mechanism 5 is disposed on the sliding mechanism 7. Through set up the slide mechanism 7 that can freely move on supporting frame body 2, utilize the adjustable hold-down mechanism 5's of slide mechanism 7 removal position to adjust the winding initial position of fin area, and then guarantee that the initial position when fin twines each time is all the same.

In one embodiment, the clamping and rotating mechanism 3 in the fin winding device may further include a chuck for clamping the substrate tube 4, a rotary drive for driving the chuck to rotate, and a traveling drive for driving the chuck and the substrate tube 4 to move toward the extending direction of the substrate tube 4, and the overall design of the fin winding device is simplified by the structure of the clamping and rotating mechanism 3, so as to facilitate installation and use of the fin winding device.

One of the embodiments of the present invention may also be that the finned tube production line provided in the present embodiment may further include a fin straightening device 26, the fin straightening device 26 being located between the bending device 25 and the fin winding device 27. By arranging the fin straightening device 26 between the bending device 25 and the fin winding device 27, the fin strip before entering the fin winding device 27 is conducted with straightening processing, so that the fin strip is wound in the fin winding device 27 conveniently.

Example two

The finned tube production line provided by the embodiment comprises a feeding device, a bending device and a fin winding device which are sequentially arranged along the moving direction of a fin strip; the fin winding device comprises a support frame body, a clamping and rotating mechanism and a pressing mechanism, wherein the clamping and rotating mechanism and the pressing mechanism are arranged on the support frame body; the clamping and rotating mechanism is used for clamping and rotating the base pipe and promoting the base pipe to reciprocate along the extension direction of the base pipe; the pressing mechanism comprises a pressing wheel, the pressing wheel enables the winding portion of the fin belt to abut against the outer wall of the base pipe, and the winding portion of the fin belt is enabled to be attached to the outer wall of the base pipe in an extrusion mode. The structure of the fin winding device described in this section is substantially the same as that of the fin winding device provided in the first embodiment, and a detailed description will be given below of a point where the structure of the fin winding device in this embodiment is different from that of the fin winding device of the first embodiment.

As shown in fig. 3, in one embodiment of the present invention, two pinch rollers 6 are provided, the two pinch rollers 6 are arranged side by side, and an accommodating space 11 for accommodating a blade portion of a fin band is formed between the two pinch rollers 6, and by arranging the two pinch rollers 6 side by side and forming the accommodating space 11 between the two pinch rollers 6, the fin band can be prevented from falling off, and the stability of winding the fin band can be enhanced.

In this embodiment, the width of the pinch roller 6 may be less than or equal to the width of the wraps in the fin band. Namely, the wheel width of the pressing wheel 6 is approximately equal to the width of the winding part, and the wheel width of the pressing wheel 6 is set to be equal to the width of the winding part in the fin belt, so that the pressing wheel 6 can be ensured to be closely attached to and cover the wide surface of the winding part, and the wide surface of the winding part is completely extruded and attached to the outer wall of the base pipe; the wheel width of the pressing wheel 6 is set to be not larger than the width of the winding part, so that the adjacent tooth piece parts wound in the fin belt on the base pipe can be prevented from colliding with the pressing wheel 6 to delay the winding operation of the fin belt, the fin belt is guaranteed to be continuously and orderly wound on the base pipe, and the winding efficiency of the fin belt is further improved.

In one embodiment of the present embodiment, the pressing mechanism 5 further comprises an auxiliary wheel arranged side by side with the pressing wheel 6, the pressing wheel 6 is located upstream in the moving direction of the substrate tube, the auxiliary wheel is located downstream in the moving direction of the substrate tube, and an accommodating space 11 for accommodating the tooth blade portions in the fin belt is formed between the pressing wheel 6 and the auxiliary wheel. By this arrangement, another structure of the pressing mechanism 5 is provided, which provides more options for designing and manufacturing the pressing mechanism 5.

In this embodiment, the width of the pinch roller 6 may be greater than or equal to the width of the windings in the fin band, and the width of the auxiliary roller may be less than the width of the windings in the fin band. I.e. the width of the pinch rollers 6 should be approximately equal to the width of the windings in the fin band and the width of the auxiliary rollers should be smaller than the width of the windings in the fin band. When the wheel width of the pressing wheel 6 is set to be equal to the width of the winding part in the fin belt, the pressing wheel 6 can be ensured to be tightly attached to and cover the wide surface of the winding part, so that the wide surface of the winding part is completely extruded and attached to the outer wall of the base pipe; when the wheel width with the auxiliary wheel sets up to be less than the width of winding portion, can avoid adjacent tooth piece portion of twining in the fin area on the base tube to collide mutually with the auxiliary wheel and delay the winding process in fin area to guarantee that the fin area continues to twine in order on the base tube, and then promote the winding efficiency of fin area.

In addition, the above-mentioned pressing mechanisms 5 may be two, and the two pressing mechanisms 5 are arranged at intervals in the extending direction of the base pipe. When the base pipe moves towards one direction of the extending direction of the base pipe, the pressing mechanism 5 finishes winding of the fin belt to form a finned pipe, the finned pipe is dismounted, the other base pipe is placed in the fin winding device, and when the base pipe moves towards the other direction of the extending direction of the base pipe, the pressing mechanism 5 finishes winding of the fin belt to form the finned pipe. That is, the two pressing mechanisms 5 can wind the fin strip on the base pipe in two directions of the extending direction of the base pipe, thereby improving the working efficiency of the fin strip winding device.

The fin winding device in this embodiment may further include, in addition to the above structure, a sliding mechanism 7 disposed on the support frame body, the sliding mechanism 7 moving on the support frame body in the base pipe extending direction and in the direction perpendicular to the base pipe extending direction; the pressing mechanism 5 is disposed on the sliding mechanism 7. Through set up the slide mechanism 7 that can freely move on supporting the support body, utilize the adjustable hold-down mechanism 5's of slide mechanism 7 removal position to adjust the winding initial position of fin area, and then guarantee that the initial position when fin twines all is the same.

EXAMPLE III

As shown in fig. 4 and 5, the finned tube production line provided by the embodiment comprises a feeding device, a bending device and a fin winding device which are sequentially arranged along the moving direction of a fin strip; the fin winding device comprises a support frame body 2, a clamping and rotating mechanism 3 and a pressing mechanism 5, wherein the clamping and rotating mechanism 3 and the pressing mechanism 5 are arranged on the support frame body 2; wherein, the clamping and rotating mechanism 3 is used for clamping and rotating the base pipe 4 and promoting the base pipe 4 to reciprocate along the extending direction of the base pipe 4; the pressing mechanism 5 comprises a pressing wheel 6, and the pressing wheel 6 enables the winding part of the fin belt to abut against the outer wall of the base pipe 4 and enables the winding part of the fin belt to be attached to the outer wall of the base pipe 4 in an extrusion mode.

The fin winding device of the embodiment further comprises at least one limiting mechanism 8 for auxiliary positioning of the base tube, as shown in fig. 5, the limiting mechanism 8 comprises at least three limiting wheels 9, the limiting wheels 9 are arranged at intervals in the extending direction of the base tube, and the limiting wheels 9 are uniformly distributed around the outer peripheral surface of the base tube at equal included angles; wherein the spacing distance between two adjacent spacing wheels 9 is equal to the width of the winding part in the fin band.

The limiting mechanism 8 for auxiliary positioning of the base pipe is arranged, so that the base pipe can be prevented from jumping greatly when the fins are wound, the stability of the base pipe is kept, and the winding of the fin belt is facilitated; the plurality of limiting wheels 9 are arranged at intervals in the extending direction of the base pipe, so that the stability of the large-size base pipe during fin winding is maintained, the base pipe is ensured to be always maintained in a stable state in the fin winding process, and the finned pipe with better heat dissipation performance is obtained conveniently; because the plurality of limiting wheels 9 are uniformly distributed around the periphery of the base tube at equal included angles, the supporting force of the limiting mechanism 8 on the base tube can be ensured to be balanced, and the stability of the base tube in the process of winding fins can be maintained; because the spacing distance between two adjacent limiting wheels 9 is equal to the width of the winding part in the fin belt, the limiting wheels 9 are prevented from colliding with the toothed sheet part in the fin belt, and the fin belt is ensured to be wound smoothly.

In addition, the fin winding device of the present embodiment further includes a driving mechanism 10, the driving mechanism 10 is connected to the limiting mechanism 8, and the driving mechanism 10 drives the limiting wheel to move. In the process of winding fins on the base pipe, the driving mechanism 10 is utilized to drive the limiting wheel 9 to move and is in contact with the base pipe to play a role in supporting and limiting; when the base pipe is driven by the clamping and rotating mechanism to move to the position of the limiting mechanism 8 to implement fin winding, the driving mechanism 10 drives the limiting wheel 9 to be away from the base pipe in time, a passing space convenient for the clamping and rotating mechanism to pass is formed, interference between the limiting wheel 9 and the clamping and rotating mechanism is avoided, and smooth proceeding of a fin winding process is guaranteed.

Example four

As shown in fig. 6 to 9, the finned tube production line provided by the embodiment comprises a feeding device, a bending device and a fin winding device which are sequentially arranged along the moving direction of a fin strip; the fin winding device comprises a support frame body, a clamping and rotating mechanism and a pressing mechanism, wherein the clamping and rotating mechanism and the pressing mechanism are arranged on the support frame body; the clamping and rotating mechanism is used for clamping and rotating the base pipe and promoting the base pipe to reciprocate along the extension direction of the base pipe; the pressing mechanism comprises a pressing wheel, the pressing wheel enables the winding portion of the fin belt to abut against the outer wall of the base pipe, and the winding portion of the fin belt is enabled to be attached to the outer wall of the base pipe in an extrusion mode.

As shown in fig. 6 and 7, the bending device 25 includes a plurality of fin bending units 16, and the fin bending units 16 are arranged at intervals along the moving direction of the fin strip; the fin bending unit 16 comprises a base 17, a pressing member 18 arranged on the base 17 and used for pressing a winding part in the fin strip, a bending mechanism 19 used for punching and bending a tooth part in the fin strip, and at least one conveying wheel used for conveying the fin strip; wherein the conveying wheels are arranged at either end of the pressing member 18 in the moving direction of the fin band, and the bending mechanisms 19 are arranged at either side of the pressing member in the moving direction of the fin band. According to the bending device, the fin belts are subjected to segmented stamping and bending by the fin bending units 16, so that the fin bending efficiency is improved, the structure of the fin bending units 16 is simplified, and the installation and maintenance are convenient.

As shown in fig. 8, two conveying wheels 20 are provided, and the two conveying wheels 20 are respectively disposed at both ends of the pressing member 18 in the moving direction of the fin band. The fin belt can pass through the bending device smoothly, and the moving stability of the fin belt is enhanced.

Wherein, the base 17 can be provided with an accommodating space for accommodating the transmission wheel, thereby simplifying the design of the bending device and facilitating the installation and use.

Further, as shown in fig. 9, the wound portion 14 of the fin band is formed with a first stopper portion, the outer peripheral surface of the transfer wheel 20 is provided with a second stopper portion that fits the first stopper portion, and the transfer wheel 20 and the wound portion 14 of the fin band are engaged by the first stopper portion and the second stopper portion. When the fin is bent, the winding part 14 of a certain section of fin belt is pressed by the pressing component, the winding part 14 is respectively meshed with the second limiting part through the first limiting part at the two ends of the moving direction of the fin belt, when the bending mechanism is used for stamping and bending the toothed sheet part of the section of fin belt, a large impulsive force is formed on the fin belt, and the fin is prevented from being separated due to the bending impulsive force when the fin is bent by utilizing the meshing of the first limiting part and the second limiting part. Meanwhile, the fin belt can be aligned in the process that the fin belt passes through the fin bending device by utilizing the engagement of the first limiting part and the second limiting part, so that the fin belt can pass through smoothly.

The first position-limiting portion can be a position-limiting hole 23, the second position-limiting portion can be a position-limiting protrusion 22, and the shape of the position-limiting hole 23 and the shape of the position-limiting protrusion 22 are in complementary fit. Therefore, the design of the first limiting part and the second limiting part is simplified, and the structural complexity of the fin bending device is reduced.

In addition, the bending mechanism includes a press head having a width in the moving direction of the fin band equal to an integral multiple of the root width of the tooth part 15 in the fin band. When the fin belt is subjected to segmented stamping and bending, the stamping head of the bending mechanism can be ensured to completely act on the tooth piece part 15 of the section of the fin belt in the fin belt, and the stamping and bending efficiency of the bending mechanism is improved.

In addition, the pressing member 18 may include a pressing portion 21, and the width of the pressing portion 21 in the fin band moving direction is greater than or equal to the width of the press head in the fin band moving direction. The pressing part 21 presses the winding part 14 in a certain section of the corresponding fin strip, the length of the winding part 14 in the pressed fin strip is the same as the width of the pressing part 21 in the moving direction of the fin strip, if the width of the pressing part 21 in the moving direction of the fin strip is smaller than the width of the press head in the moving direction of the fin strip, the length of the winding part 14 in the pressed fin strip is also smaller than the width of the press head in the moving direction of the fin strip, and the press head of the bending mechanism presses and bends the toothed parts 15 in the fin strip which is not pressed by the pressing part 21 at the same time of pressing and bending the toothed parts 15 in the section of the fin strip, so that the winding part 14 in the part of the fin strip is tilted, and the continuous pressing and bending operation of the fin strip is influenced. Therefore, the width of the pressing part 21 in the moving direction of the fin strip is set to be larger than or equal to the width of the punching head in the moving direction of the fin strip, so that the winding part 14 of the fin strip is prevented from tilting when the tooth part 15 of the fin strip is punched and bent, and the fin strip is smoothly punched and bent.

In addition, the finned tube production line provided by the embodiment can further comprise a fin guide device, and the fin guide device is positioned between the fin bending device and the fin winding device. The fin guide device is arranged between the fin bending device and the fin winding device, so that the fin strip before entering the fin winding device is subjected to guide treatment, and the fin strip is conveniently wound in the fin winding device.

EXAMPLE five

As shown in fig. 10 to 14, the present embodiment provides a finned tube production line system, which comprises two finned tube production lines as described in any one of the first to fourth embodiments, and a stamping device arranged upstream of the feeding device, wherein the stamping device stamps a finned base strip into two mutually symmetrical finned strips, and one of the finned strips is fed to one of the finned tube production lines; the other fin band is transported to another fin tube production line.

As shown in fig. 10 to 14, the fin base band is punched by the punching device to form the fin band 1, the fin band 1 is two symmetrical fin bands, that is, a first fin band 12 and a second fin band 13, the first fin band 12 and the second fin band 13 are symmetrical to each other, the bending direction of the toothed portion of the first fin band 12 is opposite to the bending direction of the toothed portion of the second fin band 13, and a first limit portion, which may be a limit hole 23 and may be engaged with a second limit portion of the bending device by the first limit portion, may be punched on the wound portion of the first fin band 12 and the second fin band 13, respectively, so as to prevent the first fin band 12 and the second fin band 13 from being separated from the bending device, and facilitate smooth bending thereof. As shown in fig. 13, the fin strip formed by stamping and bending the fin strip by the bending device has a winding portion 14 and a tooth portion 15, and a first stopper portion, which may be a stopper hole 23, may be stamped and formed on the winding portion 14 of the fin strip.

In order to improve the production efficiency of finned tubes, the finned tube production line system adopts two finned tube production lines to convey a first finned strip 12 to one of the finned tube production lines, and the first finned strip 12 is utilized to carry out fin winding on a base tube in the finned tube production line through a fin winding device; the second fin tape 13 is fed to another one of the finned tube lines, and fin winding of the base tube in the finned tube line is carried out by the fin winding apparatus using the second fin tape 13. The winding part in the fin belt is tightly attached to the outer wall of the base pipe, the radiating efficiency of the finned pipe is improved, meanwhile, the two mutually symmetrical fin belts formed by stamping can be simultaneously utilized for winding of different base pipes, and the production efficiency of the finned pipe is improved.

Since the bending directions of the fin portions in the first fin band 12 and the second fin band 13 are different, as shown in fig. 14, the bending directions of the first fin band 12 and the second fin band 13 are opposite to each other, and in order to facilitate fin winding of the base tube by the fin bands in the fin winding device, the base tube in one of the fin tube production lines should be moved in the same direction as the base tube in the other fin tube production line at the same time. In the process that the fin belt is wound on the base pipe, in order to avoid collision between the tooth piece part 15 of the fin belt and a pressing wheel or an auxiliary wheel in the pressing mechanism, if the moving direction of the base pipe is different, the bending direction of the fin belt wound on the base pipe is also different. Specifically, when the moving direction of the base tube in one of the finned tube production lines is a, the base tube in the moving direction can be subjected to fin winding by using the first fin band 12 to obtain a finned tube. When the moving direction of the base tube in one of the finned tube production lines is B, the base tube in the moving direction can be subjected to fin winding by using the second fin belt 13 to obtain a finned tube.

To facilitate understanding of the structure of the finned tube production line system, the production process of finned tubes will be described by way of example in one of the embodiments of the finned tube production line system: the fin base band is punched by a punching device to form a fin band 1, the fin band 1 is two fin bands which are symmetrical to each other, the fin bands are respectively a first fin band 12 and a second fin band 13, the first fin band 12 and the second fin band 13 are symmetrical to each other, for the convenience of process description, two fin tube production lines included in a fin tube production line system are divided into a first fin tube production line and a second fin tube production line, the first fin band 12 is conveyed to the first fin tube production line, the first fin band 12 is conveyed to a bending device through a feeding device, the fin bands are punched and bent by the bending device to form the first fin band 12 shown in figure 13, the bent first fin band 12 forms a winding part 14 and a tooth part 15, the bent first fin band 12 passes through a guide device, the guide device is used for conducting guide processing on the first fin band 12, and the fin winding of the first fin band 12 in the fin winding device is facilitated, the first finned belt 12 after being guided passes through the fin winding device again, the compressing mechanism is utilized to implement that the winding part 14 in the first finned belt 12 is tightly attached to the outer wall of the base pipe, meanwhile, the base pipe moves towards the A direction, and in the process that the base pipe moves towards the A direction, the compressing mechanism extrudes and attaches the winding part 14 in the first finned belt 12 to the outer wall of the base pipe, so that the first finned belt 12 is wound on the base pipe with a certain size, and the finned pipe with a required size is obtained. During the operation of the first finned tube line, the second finned tube line also performs fin winding of the substrate tube by the second finned belt 13, wherein the substrate tube moves in the direction B, and the fin winding process of the substrate tube is the same as that described above. And the first finned tube production line and the second finned tube production line simultaneously complete fin winding of the base tube to obtain two finned tubes. And then, the two finned tubes are unloaded from the finned tube production line system, and other base tubes are respectively installed in the first finned tube production line and the second finned tube production line, so that a new round of production operation of the finned tubes is implemented. At the moment, the base tube in the first finned tube production line can move towards the direction B, the moving direction A of the base tube in the previous finned tube production process in the first finned tube production line is opposite to the moving direction A of the base tube, and meanwhile, the second finned strip 13 is conveyed to the first finned tube production line to carry out fin winding of the base tube; meanwhile, the base tube in the second finned tube production line can move in the direction A, the moving direction of the base tube in the previous finned tube production process in the second finned tube production line is opposite to the moving direction B of the base tube, and meanwhile, the first fin belt 12 is conveyed to the second finned tube production line to wind the fins of the base tube. And the first finned tube production line and the second finned tube production line simultaneously complete the fin winding of a new base tube.

It should be noted that the two finned tube production lines can share all or part of the feeding device, so that the structure of the finned tube production line system is simplified, the operation is convenient, and the overall cost can be reduced.

Finally, it is to be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A finned tube production line is characterized by comprising a feeding device, a bending device and a fin winding device which are sequentially arranged along the moving direction of a fin belt; wherein,

the pressing mechanism comprises a pressing wheel, and the pressing wheel enables the winding part of the fin belt to abut against the outer wall of the base pipe and enables the winding part of the fin belt to be attached to the outer wall of the base pipe in an extrusion mode.

2. The fin tube production line according to claim 1, wherein the pinch rollers are two, the two pinch rollers are arranged side by side, and an accommodating space accommodating the fin portions in the fin band is formed between the two pinch rollers.

3. The fin tube manufacturing line of claim 1, wherein the hold-down mechanism further includes an auxiliary wheel arranged side by side with the hold-down wheel, the hold-down wheel being located upstream in the moving direction of the base tube, the auxiliary wheel being located downstream in the moving direction of the base tube, and an accommodation space for accommodating the blade portions in the fin band being formed between the hold-down wheel and the auxiliary wheel.

4. The fin tube production line of claim 2 or 3, wherein the hold-down mechanisms are two, and the two hold-down mechanisms are arranged at a spacing in the extending direction of the base tube.

5. The fin tube process line of claim 2, wherein the pinch roller has a wheel width less than or equal to a width of the wraps of the fin tape.

6. The fin tube process line of claim 3, wherein the pinch wheel has a wheel width greater than or equal to a width of the wrapped portion of the fin tape, and the auxiliary wheel has a wheel width smaller than the width of the wrapped portion of the fin tape.

7. The finned tube production line of any one of claims 1 to 3 wherein the fin winding apparatus further comprises at least one limiting mechanism for auxiliary positioning of the base tube, the limiting mechanism comprising at least three limiting wheels, a plurality of the limiting wheels being spaced apart in the extending direction of the base tube and being equiangularly distributed around the outer peripheral surface of the base tube; wherein the spacing distance between two adjacent limiting wheels is equal to the width of the winding part of the fin strip.

8. The fin tube production line of claim 7, further comprising a drive mechanism, the drive mechanism being coupled to the spacing mechanism, the drive mechanism driving movement of the spacing wheel.

9. The finned tube production line of any one of claims 1 to 3 wherein the bending device comprises a plurality of fin bending units arranged at intervals in a moving direction of the fin band; wherein,

the fin bending unit comprises a base, a pressing member arranged on the base and used for pressing a winding part in a fin strip, a bending mechanism used for punching and bending a tooth part in the fin strip, and at least one conveying wheel used for conveying the fin strip;

wherein the conveying wheel is arranged at any end of the pressing component along the moving direction of the fin strip, and the bending mechanism is arranged at any side of the pressing component along the moving direction of the fin strip.

10. The fin tube process line of claim 9, wherein the transfer wheels are two, and the two transfer wheels are respectively disposed at both ends of the hold-down member in the moving direction of the fin band.

11. The finned tube production line of claim 9 wherein the wraps in the fin band are formed with first stops, and the transfer wheel is provided on an outer peripheral surface thereof with second stops cooperating with the first stops, the transfer wheel engaging the wraps in the fin band through the first stops and the second stops.

12. The finned tube production line of claim 11 wherein the first limiting portion is a limiting hole and the second limiting portion is a limiting projection, the limiting hole and the limiting projection being complementarily contoured.

13. The fin tube production line of claim 9, wherein the bending mechanism includes a punch head having a width in the direction of movement of the fin band equal to an integer multiple of a tooth root width in the fin band.

14. The fin tube process line of claim 13, wherein the hold-down member includes a hold-down portion having a width in the direction of movement of the fin strip that is greater than or equal to a width of the punch head in the direction of movement of the fin strip.

15. The fin tube production line of claim 1, further comprising a fin straightening device located between the fin bending device and the fin winding device.

16. A finned tube production line system comprising two finned tube production lines as set forth in any one of claims 1 to 15, and a stamping device disposed upstream of the feeding device, the stamping device stamping a finned base strip into two mutually symmetrical finned strips, one of the finned strips being fed to one of the finned tube production lines; and the other fin belt is conveyed to the other fin tube production line.

17. The finned tube process line system of claim 16 wherein the direction of movement of the substrate tubes in one of the finned tube process lines is opposite to the direction of movement of the substrate tubes in the other of the finned tube process lines.