CN114290009B - Production method of automatic forming device for forming torsion and top extension - Google Patents
Production method of automatic forming device for forming torsion and top extension Download PDFInfo
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- CN114290009B CN114290009B CN202111671512.7A CN202111671512A CN114290009B CN 114290009 B CN114290009 B CN 114290009B CN 202111671512 A CN202111671512 A CN 202111671512A CN 114290009 B CN114290009 B CN 114290009B
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Abstract
The invention relates to a production method of a forming, twisting and stretching automatic forming device, a through long section extends from the right end to the left end of the forming device, when the through long section passes through a rolling wheel set, a main fin is rolled into a special-shaped structure by the rolling wheel set in a rolling gap, the through long section continues to move leftwards, cutting and twisting steps are repeated until the whole through long section completes cutting and twisting and enters a through long sleeve, and after blanking, the heat conducting section of the special-shaped fin and the through long sleeve are subjected to spot welding to form a straight pipe section. The first fin groups and the second fin groups are staggered on the core rod of the heat conduction profile produced by the production method of the forming torsion stretching automatic forming device along the length direction, so that fluid flowing from the front can be continuously split, and the heat exchange quantity and the heat exchange speed are greatly increased.
Description
Technical Field
The invention relates to a production method of a forming torsion top-extension automatic forming device.
Background
Heat exchange coils are widely used for heat exchange of various fluids. The fluid flows in the tube, especially some liquid with viscosity, which can generate a layer of mucous membrane on the inner tube wall to prevent the heat conduction of the fluid heat to the heat exchange coil, thereby greatly reducing the heat exchange of the fluid to the heat exchange coil.
In order to improve the heat exchange effect, the structural performance of the heat conducting section bar in the heat exchange coil needs to be improved, so that a corresponding forming torsion top-extension automatic forming device for producing the heat conducting section bar needs to be developed correspondingly.
Disclosure of Invention
The invention aims to overcome the defects and provide a production method of a forming torsion and stretching automatic forming device.
The purpose of the invention is realized in the following way:
the production method of the automatic forming device for forming the torsion and stretching is characterized in that the automatic forming device for forming the torsion and stretching comprises a forming device and a main body of the device for forming the torsion and stretching, the right of the main body of the device for forming the torsion and stretching is provided with the forming device,
the forming device comprises a rolling wheel set, the rolling wheel set comprises a rolling convex die set and a rolling concave die set which are arranged up and down, a rolling gap is reserved between the rolling convex die set and the rolling concave die set which are arranged up and down, the rolling gap is matched with the thickness of a main fin, the rolling convex die set comprises a front rolling convex die and a rear rolling convex die which are synchronously connected through a connecting wheel shaft, the rolling concave die set comprises a front rolling concave die and a rear rolling concave die which are synchronously connected through the connecting wheel shaft, fin gaps are reserved between the two rolling convex dies and between the rolling concave dies, the fin gaps are matched with the thickness of the main fin, the rolling convex die and the rolling concave die are of a cylindrical structure which is longitudinally arranged, the rolling convex die is provided with bulges matched with the special-shaped structure in size along the circumferential interval, the rolling concave die is provided with pits matched with the special-shaped structure in size along the circumferential interval, the bulges of the rolling convex die correspond to the pits of the rolling concave die, the left and right sides of the rolling convex die set and the rolling concave die set are respectively provided with a first section bar positioning wheel set and a second section bar positioning wheel set, the first section bar positioning wheel set and the second section bar positioning wheel set have the same structure, the left side of the rolling wheel set is also provided with a second rolling wheel set, the second rolling wheel set is different from the first rolling wheel set in that the second rolling wheel set rotates by 90 degrees, and the second rolling wheel set and the first rolling wheel set are driven by a synchronous transmitter;
the left side of the forming device is provided with a section bar sleeve die, the outer part of the section bar sleeve die is provided with an electromagnetic brake, the section bar sleeve die comprises an annular section bar sleeve die sleeve and an inner section bar sleeve die core, a die core cavity is arranged in the section bar sleeve die core, and the shape of the die core cavity is matched with the solid shape formed by compounding the first fin group and the second fin group; a cutting gap is reserved between the profile sleeve die and the profile outer sleeve, and a cutting motor piece is arranged in the cutting gap; the left side of the profile sleeve die is provided with a profile gear sleeve die, a torsion gap is formed between the profile sleeve die and the profile gear sleeve die, the profile gear sleeve die comprises an annular profile gear sleeve die sleeve and an internal profile gear sleeve die core, a circle of external gear is arranged outside the profile gear sleeve die sleeve, the profile gear sleeve die cores are the same as the profile sleeve die cores in shape and have the same die core cavity, and the channel straightness of the die core cavity is consistent; the left side of the section bar sleeve mold is provided with a sleeve rotating seat, the sleeve rotating seat comprises a fixed support, the right side of the fixed support is provided with a sleeve rotating fixed support, the sleeve rotating fixed support is connected with a sleeve rotating movable clamping mold through a bearing, the right end of the sleeve rotating movable clamping mold is provided with a bayonet matched with the inner diameter of a through length sleeve, and the distance between the sleeve rotating movable clamping mold and the section bar sleeve mold is equal to the length of the through length sleeve to be installed;
when the through long section passes through the rolling wheel set, the main fins are rolled into a special-shaped structure by the rolling wheel set in a rolling gap, the section bar rolled into the special-shaped structure enters a section bar sleeve die and a section bar gear sleeve die, the solid part of the through long section bar passes through a section bar sleeve die core and a die core cavity in the section bar gear sleeve die core, the main fins and the auxiliary fins of the through long section bar are cut by a cutting motor, and meanwhile, the section bar gear sleeve die is enabled to rotate for one circle by starting a rotating motor, at the moment, the section bar sleeve die is released by an electromagnetic brake, so that the section bar sleeve die also rotates for one circle along with the section bar gear sleeve die, the through long section bar is cut for one circle until only a core rod is left to be uncut, and a fin set gap is formed at the cut part; after cutting, the through long section bar continues to move leftwards so that the fin group gap is positioned at the torsion gap between the section bar sleeve die and the section bar gear sleeve die; the electromagnetic brake holds the profile sleeve die and limits the rotation of the profile sleeve die, the rotating motor is started to enable the profile gear sleeve die to rotate for forty-five degrees, the through long profile forms torsion at the fin group gaps, and the fin group at the left side of the fin group gaps and the uncut through long profile at the right side of the fin group gaps are axially staggered for forty-five degrees; and continuously moving the through long section bar leftwards and repeating the cutting and twisting steps until the whole through long section bar completes cutting and twisting and enters the through long sleeve, and spot welding the heat conducting section bar of the special-shaped fin and the through long sleeve to form a straight pipe section after blanking.
Preferably, the cutting motor is fixed to the output end of the cutting motor, and the cutting motor is arranged on a height lifting device.
Preferably, a rotary motor is arranged below the profile gear sleeve die, the output end of the rotary motor is connected with a rotary driving gear through a transmission, and the rotary driving gear is meshed with the external gear; the rotating motor can drive the profile gear sleeve die to rotate.
Preferably, the embossing die is connected to the embossing die via a first timing belt on the front side, and the embossing die or the embossing die is connected to the output of a motor via a second timing belt.
As one preferable, the first section positioning wheel set includes a first section upper positioning wheel set and a first section lower positioning wheel set, the first section upper positioning wheel set includes a front section upper positioning wheel and a rear section upper positioning wheel set which are synchronously connected through a connecting wheel shaft, the first section lower positioning wheel set includes a front section lower positioning wheel and a rear section lower positioning wheel set which are synchronously connected through a connecting wheel shaft, the second section positioning wheel set includes a second section upper positioning wheel set and a second section lower positioning wheel set, the second section upper positioning wheel set includes a front section upper positioning wheel and a rear section upper positioning wheel set which are synchronously connected through a connecting wheel shaft, the second section lower positioning wheel set includes a front section lower positioning wheel and a rear section lower positioning wheel set which are synchronously connected through a connecting wheel shaft, and the first section positioning wheel set and the second section positioning wheel set are approximately the same as the rolling wheel set and have corresponding gaps, the difference is that the surface of the positioning wheels of the first section positioning wheel set and the second section positioning wheel set is a smooth surface.
Compared with the prior art, the invention has the beneficial effects that:
1. the heat conduction profile produced by the production method of the forming torsion ejection automatic forming device is provided with the main fins, the main fins are provided with the special-shaped structures, the special-shaped structures not only increase the heat exchange area of fluid in the pipe, but also enable the fluid to generate turbulence when the fluid passes through wave lines, flanging or penetrating holes of the special-shaped structures in a flowing state, so that the liquid mucous membrane which hinders heat conduction on the inner pipe wall can be continuously broken.
2. The first fin groups and the second fin groups are arranged on the core rod of the heat conduction section bar produced by the production method of the forming torsion stretching automatic forming device in a staggered manner along the length direction, so that fluid flowing from the front can be continuously split, the heat conduction of the fluid is more sufficient and uniform, the flow direction of the fluid in the tube can be changed, the mucous membrane of the wall of the inner tube is more favorably broken, the heat conduction of the fluid in the heat exchange coil tube can be blocked, and the heat conduction of the fluid in the heat exchange coil tube can be conducted to the heat exchange coil tube main body through the heat conduction section bar with excellent heat conduction, so that the heat exchange quantity and the heat exchange speed are greatly accelerated.
Drawings
Fig. 1 is a schematic view of a heat exchange coil of a heat conducting profile with profiled fins.
Fig. 2 is a perspective partial sectional view of a straight pipe section of embodiment 1.
Fig. 3 is a cross-sectional view of the straight tube section of example 1.
Fig. 4 is a schematic view of a heat conductive profile of a special-shaped fin of example 1.
Fig. 5 is a schematic view of a heat conductive profile without a shaped structure.
Fig. 6 is a perspective partial sectional view of a straight pipe section of example 2.
Fig. 7 is a cross-sectional view of the straight tube section of example 2.
Fig. 8 is a schematic view of a heat conductive profile of a special-shaped fin of example 2.
Fig. 9 is a front view of the molding apparatus.
Fig. 10 is a schematic view of the roll embossing die and the roll female die in examples 1 and 2.
Fig. 11 is a top view of the molding apparatus.
Fig. 12 is a schematic view of a twist top extension device.
Fig. 13 is a schematic view of the corresponding profile sleeve in examples 1 and 2.
Fig. 14 is a schematic view of the corresponding profile gear sleeve in examples 1 and 2.
Fig. 15 is a schematic view of a sleeve rotating seat.
Fig. 16 is a schematic view of a heat conductive profile of a special-shaped fin of example 3.
Fig. 17 is a schematic view of a heat conductive profile of a special-shaped fin of example 4.
Fig. 18 is a front view of a second molding apparatus.
Fig. 19 is a top view of a second molding apparatus.
Fig. 20 is a schematic diagram of a roll embossing die and a roll embossing die corresponding to example 3.
Fig. 21 is a schematic diagram of a roll embossing die and a roll embossing die corresponding to example 4.
Fig. 22 is a schematic view of the corresponding profile sleeve in example 3.
Fig. 23 is a schematic view of a profile gear sleeve corresponding to embodiment 3.
Fig. 24 is a schematic view of the corresponding profile sleeve in example 4.
Fig. 25 is a schematic view of a profile gear bushing corresponding to embodiment 4.
Fig. 26 is a schematic view of a forming twist top-stretch automated forming apparatus.
Fig. 27 is a schematic view of a heat conductive profile of a special-shaped fin of example 5.
Wherein:
heat exchange coil 8, heat exchange coil body 800, straight tube section 800.1, bent tube section 800.2, heat conducting section 801, core rod 801.1, main fin 801.2, hole 801.3 of heat conducting section with special-shaped fins
The torque jack 900, push rod 901, push rod gear 901.1, push rod sliding groove 901.2, electromagnetic brake 902, push rod motor 903, push rod motor gear 903.1, profile outer sleeve 904, profile outer sleeve base 904.1, profile outer sleeve bottom half tube 904.2, profile outer sleeve top half tube 904.3, half tube securing pin 904.4, profile sleeve 905, profile sleeve die 905.1, profile sleeve die core 905.2, cutting motor 906, cutting motor blade 906.1, height lifter 906.2, profile gear sleeve 907, profile gear sleeve die sleeve 907.1, profile gear sleeve die core 907.2, outer gear 907.3, rotary motor 907.4, transmission 907.5, rotary drive gear 907.6, sleeve rotational mount 908, fixed mount 908.1, sleeve rotary mount 908.2, bearing 908.3, sleeve rotary movable clamp 908.4, through sleeve 909, through length profile 910.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to the drawings in the specification, the heat exchange coil 8 with the heat conduction profile with the special-shaped fins comprises a heat exchange coil main body 800, wherein the heat exchange coil main body 800 comprises a straight pipe section 800.1 and a bent pipe section 800.2, the heat conduction profile 801 with the special-shaped fins is arranged in the straight pipe section of the heat exchange coil main body 800, the heat conduction profile 801 with the special-shaped fins comprises a round core rod 801.1 arranged along the direction of the heat exchange coil main body 800, a main fin 801.2 is arranged outside the core rod 801.1, a special-shaped structure 801.3 is arranged on the main fin 801.2, and the special-shaped structure 801.3 can be wave lines, turned edges or a plurality of holes mutually communicated in the thickness direction.
As one preferable mode, the mandrel 801.1 is provided with first fin groups and second fin groups staggered along the length direction thereof, the lengths of the first fin groups and the second fin groups are equal, a fin group gap is formed between the first fin groups and the second fin groups, forty-five degree offset angles are formed between the first fin groups and the second fin groups, and the first fin groups and the second fin groups have the same structure except for being axially offset by forty-five degrees along the mandrel 801.1. The first fin group and the second fin group are collectively referred to as fin groups, the fin groups include primary fins 801.2 uniformly divergently arranged along the center of the mandrel 801.1, and the outer ends of the primary fins 801.2 are in contact with the inner wall of the heat exchange coil body 800.
In embodiment 1 and fig. 2-5, the number of main fins 801.2 of fin groups on the heat conduction profile 801 of the special-shaped fins is four, the main fins 801.2 are arranged to penetrate through the length of the whole core rod 801.1, no first fin group and no second fin group which are staggered exist, and the special-shaped structure is a hole;
in embodiment 2 and fig. 6 to 8, the heat conducting profile 801 of the special-shaped fins has four main fins 801.2 of the fin groups, forty-five degrees of dislocation angles are formed between the first fin group and the second fin group, the special-shaped structure is holes, and three holes are formed in the main fins 801.2 of each fin group.
The special-shaped structures on the fin groups in embodiment 3 and fig. 16 are wave lines.
The special-shaped structures provided on the fin groups in example 4 and fig. 17 are turned-ups.
In embodiment 5 and fig. 27, the heat conducting profile 801 of the special-shaped fin has four main fins 801.2, each main fin 801.2 is further provided with a plurality of auxiliary fins, preferably three auxiliary fins, and each main fin 801.2 of the special-shaped fin is further provided with a plurality of holes, preferably three holes, which are arranged in a staggered manner with respect to the auxiliary fins. The main fins and the auxiliary fins are vertically arranged, the widths of the plurality of auxiliary fins are sequentially increased outwards from the root parts of the main fins, and the thickness of the auxiliary fins is smaller than that of the main fins. The outer ends of the main fins are in contact with the inner wall of the heat exchange coil body.
The production method of the heat exchange coil pipe of the heat conduction profile with the special-shaped fins comprises the following steps:
firstly, extruding and molding a through long section bar 910 which is matched with the section shape of the fin group by adopting a die, and additionally producing a through long sleeve 909 which is matched with the main caliber of the heat exchange coil;
step two, forming the special-shaped structure of the through long section bar;
thirdly, twisting the through long section bar into a heat conduction section bar of the special-shaped fin, and arranging the heat conduction section bar in the through long sleeve to form a straight pipe section;
and step four, connecting the straight pipe section and the bent pipe section to form the heat exchange coil of the heat conduction profile with the special-shaped fins.
And step two, performing operation by adopting a forming device 500.
The forming device 500 comprises a rolling wheel set, the rolling wheel set comprises a rolling convex die set and a rolling concave die set which are arranged up and down (the upper position and the lower position of the rolling convex die set and the rolling concave die set can be exchanged), a rolling gap is reserved between the rolling convex die set and the rolling concave die set which are arranged up and down, the rolling gap is matched with the thickness of a main fin, the rolling convex die set comprises a front rolling convex die 501 and a rear rolling convex die 501 which are synchronously connected through connecting wheel shafts, the rolling concave die set comprises a front rolling concave die 502 and a rear rolling concave die 502 which are synchronously connected through connecting wheel shafts, fin gaps are reserved between the two rolling convex dies 501 and between the rolling concave dies 502, the fin gaps are matched with the thickness of the main fin, the rolling convex die 501 and the rolling concave dies 502 are of a cylindrical structure which are longitudinally arranged, the rolling convex die 501 is provided with a bulge matched with the special-shaped structure 801.3 in size along the circumferential interval, the rolling concave die 502 is provided with concave recesses which are matched with the special-shaped structure 801.3 in size along the circumferential direction at intervals, the convex protrusions of the rolling concave die 501 correspond to the concave positions of the rolling concave die 502, the rolling concave die 501 and the rolling concave die 502 are connected through a first synchronous belt 503 at the front side, the rolling concave die 501 or the rolling concave die 502 is connected with the output end of a motor 504 through a second synchronous belt 505, a first profile positioning wheel set 506 and a second profile positioning wheel set 507 are respectively arranged at the left side and the right side of the rolling concave die set, the first profile positioning wheel set and the second profile positioning wheel set have the same structure, the first profile positioning wheel set 506 comprises a first profile upper positioning wheel set and a first profile lower positioning wheel set, the first section bar upper positioning wheel group comprises a front first section bar upper positioning wheel and a rear first section bar upper positioning wheel which are synchronously connected through connecting wheel shafts, the first section bar lower positioning wheel group comprises a front first section bar lower positioning wheel and a rear first section bar lower positioning wheel which are synchronously connected through connecting wheel shafts, the second section bar positioning wheel group 507 comprises a second section bar upper positioning wheel group and a second section bar lower positioning wheel group, the second section bar upper positioning wheel group comprises a front second section bar lower positioning wheel and a rear second section bar lower positioning wheel which are synchronously connected through connecting wheel shafts, and the first section bar positioning wheel group and the second section bar positioning wheel group are approximately the same as the rolling wheel group and have corresponding gaps.
The steps of the molding device 500 are as follows:
the through long section bar 910 goes from one end of the forming device 500 to the other end, the vertical main fins are located in the fin gaps, the horizontal main fins are located between the upper locating wheels and the lower locating wheels, when the through long section bar 910 passes through the rolling wheel sets, the horizontal main fins are rolled into a special-shaped structure in the rolling wheel sets in the rolling gap, the above steps are completed for half of a forming period, then the through long section bar 910 is rotated ninety degrees, and the forming device 500 is further internally provided with a special-shaped structure of the other two main fins, and finally the forming of the special-shaped structure of the four main fins on the through long section bar 910 is completed.
As a preferred alternative, there is a second form of forming device, see fig. 18-19, in which the forming device 500 is further provided with a second roller set at its left section, the second roller set being different from the first roller set by a rotation of 90 degrees, so that it can be used for forming a profiled structure of the longitudinal primary fins, the second roller set being driven by a synchronous transducer with the first roller set. In this way, the steps of the forming device 500 only need to run the through-length section bar 910 from one end of the forming device 500 to the other.
And step three, adopting a torsion stretching device 900 to perform operation.
The torsion pushing device 900 includes a push rod 901 disposed laterally and leftward, the push rod 901 is disposed in a push rod sliding groove 901.2 disposed laterally, a push rod gear 901.1 disposed along a length direction of the push rod 901 is disposed at a top of the push rod 901, a push rod motor 903 is disposed above the push rod 901, a push rod motor gear 903.1 is disposed at an output end of the push rod motor 903, and the push rod motor gear 903.1 is matched with the push rod gear 901.1, so that a forward rotation and a reverse rotation of the push rod motor 903 can realize a left-right lateral movement of the push rod 901;
a profile outer sleeve 904 which is transversely arranged is arranged at the left side of the push rod 901, the profile outer sleeve 904 comprises a profile outer sleeve base 904.1, a profile outer sleeve bottom semicircular tube 904.2 is fixedly arranged on the profile outer sleeve base 904.1, an openable profile outer sleeve top semicircular tube 904.3 is arranged on a profile outer sleeve bottom semicircular tube 904.2, and a profile outer sleeve bottom semicircular tube 904.2 is fixedly connected with a profile outer sleeve top semicircular tube 904.3 through a semicircular tube fixing pin 904.4;
a section sleeve mold 905 is arranged at the left side of the section outer sleeve 904, an electromagnetic brake 902 is arranged at the outer part of the section sleeve mold 905, the electromagnetic brake 902 can be used for limiting the rotation of the section sleeve mold 905, the section sleeve mold 905 comprises an annular section sleeve mold sleeve 905.1 and an inner section sleeve mold core 905.2, a mold core cavity is arranged in the section sleeve mold core 905.2 and is used for transversely passing a heat conducting section, the shape of the mold core cavity is matched with the solid shape formed by compounding the first fin group and the second fin group, for example, the mold core cavity matched with the embodiment 1 is provided with four channels for passing a main fin, for example, the mold core cavity matched with the embodiment 2 is provided with eight channels for passing the main fin;
a cutting gap is reserved between the profile sleeve mold 905 and the profile outer sleeve 904, a cutting motor piece 906.1 is arranged in the cutting gap, the cutting motor piece 906.1 is fixed on the output end of the cutting motor 906, and the cutting motor 906 is arranged on a height lifting device 906.2;
the left side of the profile sleeve mold 905 is provided with a profile gear sleeve mold 907, a torsion gap is formed between the profile sleeve mold 905 and the profile gear sleeve mold 907, the profile gear sleeve mold 907 comprises an annular profile gear sleeve mold sleeve 907.1 and an inner profile gear sleeve mold core 907.2, a circle of external gear 907.3 is arranged outside the profile gear sleeve mold sleeve 907.1, the profile gear sleeve mold core 907.2 has the same mold core cavity as the profile sleeve mold core 905.2, the straightness of the channels of the mold core cavities are consistent, a rotary motor 907.4 is arranged below the profile gear sleeve mold 907, the output end of the rotary motor 907.4 is connected with a rotary driving gear 907.6 through a transmission 907.5, and the rotary driving gear 907.6 is meshed with the external gear 907.3; the action of the rotary motor 907.4 can drive the profile gear sleeve mold 907 to rotate;
the left side of section bar cover die 905 is provided with a sleeve pipe rotation seat 908, sleeve pipe rotation seat 908 includes fixing support 908.1, the right side of fixing support 908.1 is provided with sleeve pipe rotation fixed bolster 908.2, be connected with sleeve pipe rotation movable card die 908.4 on the sleeve pipe rotation fixed bolster 908.2 through bearing 908.3, the right-hand member of sleeve pipe rotation movable card die 908.4 is provided with the bayonet socket with logical long sleeve pipe 909 internal diameter assorted, the distance between sleeve pipe rotation movable card die 908.4 and the section bar cover die 905 equals the logical long sleeve pipe length of waiting to install.
The specific working steps of the torsion stretching device 900 are as follows:
step one, feeding
Opening a semicircular tube 904.3 at the top of the profile jacket, putting a through long profile, closing the semicircular tube 904.3 at the top of the profile jacket, locking a semicircular tube fixing pin 904.4, placing a through long sleeve on a sleeve rotating seat 908, fixing the left end of the through long sleeve on a sleeve rotating movable clamping die 908.4, and enabling the right end of the through long sleeve to be close to the left side of a profile gear sleeve die 907;
step two, first jacking and extending
Starting a push rod motor 903, and moving the push rod 901 leftwards along a push rod sliding groove 901.2 to push the through long section bar in the section bar outer sleeve 904 to enter a section bar sleeve die 905 and a section bar gear sleeve die 907, wherein the solid part of the through long section bar passes through die core cavities in a section bar sleeve die core 905.2 and a section bar gear sleeve die core 907.2, and pushing of the push rod motor 903 enables the push rod 901 to push the length of the through long section bar in a cutting gap to be equal to a set process length or equal to the length of a fin group;
step three, cutting
The push rod motor 903 stops acting, the cutting motor 906 is started to cut the main fins and the auxiliary fins of the through-length profile, the cutting motor 906 descends, meanwhile, the rotating motor 907.4 is started to enable the profile gear sleeve mold 907 to rotate for one circle, at the moment, the electromagnetic brake 902 releases the profile sleeve mold 905, so that the profile sleeve mold 905 also rotates for one circle along with the profile gear sleeve mold 907, the through-length profile is cut for one circle until only the core rod 801.1 is left to be uncut, and a fin group gap is formed at the cut part;
step four, second jacking
After the cutting is finished, the push rod motor 903 continues to act, and the push rod 901 continues to push the through long section bar leftwards until the fin group gap formed on the through long section bar in the previous step is positioned at the torsion gap between the section bar sleeve mold 905 and the section bar gear sleeve mold 907;
step five, twisting
The push rod motor 903 stops acting, the electromagnetic brake 902 holds the profile sleeve mold 905 and limits the rotation of the profile sleeve mold 905, the rotary motor 907.4 is started to enable the profile gear sleeve mold 907 to rotate forty-five degrees, the through long profile forms torsion at the fin group gap, and the fin group at the left side of the fin group gap is axially staggered with the uncut through long profile at the right side of the fin group gap by forty-five degrees;
repeating the steps two to five to finish the cutting of gaps of the multi-section fin groups and the torsion between the adjacent fin groups, enabling the section which is jacked to the left side of the section gear sleeve mold 907 and is subjected to cutting torsion to enter the through long sleeve until the whole through long section is subjected to cutting torsion and enters the through long sleeve, and performing spot welding on the heat conduction section 801 of the special-shaped fins and the through long sleeve to form a straight pipe section after blanking.
As a preferred example, the forming and twisting and stretching automatic forming device 300 has functions of the forming device 500 and the twisting and stretching device 900, and the portion of the twisting and stretching device 900 excluding the push rod 901, the push rod motor 903 and the profile outer sleeve 904 is called as a twisting and stretching device body, and the forming and twisting and stretching automatic forming device 300 includes a twisting and stretching device body, and the second form of the forming device 500 is disposed on the right side of the twisting and stretching device body, so that the long profile 910 can directly enter the body of the twisting and stretching device 300 to twist and stretch after being formed by the forming device 500.
The foregoing is merely a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the invention.
Claims (5)
1. The production method of the automatic forming device for forming the torsion and stretching is characterized in that the automatic forming device for forming the torsion and stretching comprises a forming device and a main body of the device for forming the torsion and stretching, the right of the main body of the device for forming the torsion and stretching is provided with the forming device,
the forming device comprises a rolling wheel set, the rolling wheel set comprises a rolling convex die set and a rolling concave die set which are arranged up and down, a rolling gap is reserved between the rolling convex die set and the rolling concave die set which are arranged up and down, the rolling gap is matched with the thickness of a main fin, the rolling convex die set comprises a front rolling convex die and a rear rolling convex die which are synchronously connected through a connecting wheel shaft, the rolling concave die set comprises a front rolling concave die and a rear rolling concave die which are synchronously connected through the connecting wheel shaft, fin gaps are reserved between the two rolling convex dies and between the rolling concave dies, the fin gaps are matched with the thickness of the main fin, the rolling convex die and the rolling concave die are of a cylindrical structure which is longitudinally arranged, the rolling convex die is provided with bulges matched with the special-shaped structure in size along the circumferential interval, the rolling concave die is provided with pits matched with the special-shaped structure in size along the circumferential interval, the bulges of the rolling convex die correspond to the pits of the rolling concave die, the left and right sides of the rolling convex die set and the rolling concave die set are respectively provided with a first section bar positioning wheel set and a second section bar positioning wheel set, the first section bar positioning wheel set and the second section bar positioning wheel set have the same structure, the left side of the rolling wheel set is also provided with a second rolling wheel set, the second rolling wheel set is different from the first rolling wheel set in that the second rolling wheel set rotates by 90 degrees, and the second rolling wheel set and the first rolling wheel set are driven by a synchronous transmitter;
the left side of the forming device is provided with a section bar sleeve die, the outer part of the section bar sleeve die is provided with an electromagnetic brake, the section bar sleeve die comprises an annular section bar sleeve die sleeve and an inner section bar sleeve die core, a die core cavity is arranged in the section bar sleeve die core, and the shape of the die core cavity is matched with the solid shape formed by compounding the first fin group and the second fin group; a cutting gap is reserved between the profile sleeve die and the profile outer sleeve, and a cutting motor piece is arranged in the cutting gap; the left side of the profile sleeve die is provided with a profile gear sleeve die, a torsion gap is formed between the profile sleeve die and the profile gear sleeve die, the profile gear sleeve die comprises an annular profile gear sleeve die sleeve and an internal profile gear sleeve die core, a circle of external gear is arranged outside the profile gear sleeve die sleeve, the profile gear sleeve die cores are the same as the profile sleeve die cores in shape and have the same die core cavity, and the channel straightness of the die core cavity is consistent; the left side of the section bar sleeve mold is provided with a sleeve rotating seat, the sleeve rotating seat comprises a fixed support, the right side of the fixed support is provided with a sleeve rotating fixed support, the sleeve rotating fixed support is connected with a sleeve rotating movable clamping mold through a bearing, the right end of the sleeve rotating movable clamping mold is provided with a bayonet matched with the inner diameter of a through length sleeve, and the distance between the sleeve rotating movable clamping mold and the section bar sleeve mold is equal to the length of the through length sleeve to be installed;
when the through long section passes through the rolling wheel set, the main fins are rolled into a special-shaped structure by the rolling wheel set in a rolling gap, the section bar rolled into the special-shaped structure enters a section bar sleeve die and a section bar gear sleeve die, the solid part of the through long section bar passes through a section bar sleeve die core and a die core cavity in the section bar gear sleeve die core, the main fins and the auxiliary fins of the through long section bar are cut by a cutting motor, and meanwhile, the section bar gear sleeve die is enabled to rotate for one circle by starting a rotating motor, at the moment, the section bar sleeve die is released by an electromagnetic brake, so that the section bar sleeve die also rotates for one circle along with the section bar gear sleeve die, the through long section bar is cut for one circle until only a core rod is left to be uncut, and a fin set gap is formed at the cut part; after cutting, the through long section bar continues to move leftwards so that the fin group gap is positioned at the torsion gap between the section bar sleeve die and the section bar gear sleeve die; the electromagnetic brake holds the profile sleeve die and limits the rotation of the profile sleeve die, the rotating motor is started to enable the profile gear sleeve die to rotate for forty-five degrees, the through long profile forms torsion at the fin group gaps, and the fin group at the left side of the fin group gaps and the uncut through long profile at the right side of the fin group gaps are axially staggered for forty-five degrees; and continuously moving the through long section bar leftwards and repeating the cutting and twisting steps until the whole through long section bar completes cutting and twisting and enters the through long sleeve, and spot welding the heat conducting section bar of the special-shaped fin and the through long sleeve to form a straight pipe section after blanking.
2. The method of claim 1, wherein the cutting motor is mounted on an output end of a cutting motor mounted on a height lifter.
3. The method for producing the automatic forming device for forming the torsional top extension according to claim 1, wherein a rotary motor is arranged below the profile gear sleeve die, the output end of the rotary motor is connected with a rotary driving gear through a speed changer, and the rotary driving gear is meshed with an external gear; the rotating motor can drive the profile gear sleeve die to rotate.
4. The method of claim 1, wherein the embossing die is connected to the embossing die via a first timing belt on the front side, and the embossing die or embossing die is connected to the output of a motor via a second timing belt.
5. The method of forming a torsional stretching automation forming device of claim 1, wherein the first profile positioning wheel set comprises a first profile upper positioning wheel set and a first profile lower positioning wheel set, the first profile upper positioning wheel set comprises a front profile upper positioning wheel and a rear profile upper positioning wheel which are synchronously connected through connecting wheel shafts, the first profile lower positioning wheel set comprises a front profile lower positioning wheel and a rear profile lower positioning wheel which are synchronously connected through connecting wheel shafts, the second profile positioning wheel set comprises a second profile upper positioning wheel set and a second profile lower positioning wheel set, the second profile upper positioning wheel set comprises a front profile upper positioning wheel and a rear profile upper positioning wheel which are synchronously connected through connecting wheel shafts, the second profile lower positioning wheel set comprises a front profile lower positioning wheel and a rear profile lower positioning wheel which are synchronously connected through connecting wheel shafts, and the first profile positioning wheel set and the second profile positioning wheel set are approximately the same as the rolling wheel set and have corresponding gaps, and the difference is that the surfaces of the positioning wheels of the first profile positioning wheel set and the second profile positioning wheel set are smooth surfaces.
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| CN202111671512.7A CN114290009B (en) | 2021-12-31 | 2021-12-31 | Production method of automatic forming device for forming torsion and top extension |
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| JP2003130568A (en) * | 2001-10-25 | 2003-05-08 | Mitsubishi Heavy Ind Ltd | Manufacturing method for tube with spiral fin, manufacturing apparatus for tube with spiral fin and tube with spiral fin |
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