CN100491220C - Level wound coil, method of manufacturing the same, and package for the same - Google Patents

Abstract

Provided is a level wound coil (LWC), its manufacturing method, and a package of the LWC eliminating trouble of catching or the like at a transfer part in pulling a copper tube out of the LWC in an ETTS method. The LWC is composed of a plurality of coil layers formed by alignment winding and traverse winding of tubes, wherein an (m+1)th layer coil is arranged on an m-th layer coil (m is an odd number when the winding start is up and an even number when the winding start is down in placing the LWC 1A to make a coil center axis perpendicular to a placing surface) so that the winding start edge is fitted into an outer recessed part between tubes of a final wind of the m-th layer coil and a wind directly before that. In portions (transfer portions 3A) of the tubes transferred to the (m+1)th layer from the m-th layer existing at the lower face when placed, a (k+1)th (outer layer side) settlement end 1b (k is a natural number) is not shifted in the winding direction (the forward direction) of the tube with respect to a k-th (the inner layer side) settlement end 1b.

Description

The package of pipe volume of evenly reeling and manufacture method thereof and even pipe volume of reeling

Technical field

The pipe that the present invention relates to evenly reel is rolled up (LWC:Level Wound Coil, below, be sometimes referred to as " LWC ") and manufacture method, package with the pipe of even coiling volume, the package of the pipe volume that especially relates to pipe volume that employed copper such as the heat-transfer pipe of idle call heat exchanger such as A/C and water supply pipe for building or copper alloy tube etc. evenly reel and manufacture method thereof and evenly reel.

Background technology

Heat-transfer pipes such as the pipe of use such as the heat exchanger of interior environment system etc. and water supply pipe for building inner face trough of belt or smooth tubes.This heat-transfer pipe uses the metal tube that copper or copper alloy make (below, be called for short " copper pipe ") usually, and its manufacturing process is: be wound into the pipe web-like earlier, anneal then and make predetermined modified material, and with the state keeping or the transportation of the pipe volume of even coiling.And uncoiling is also cut off by desired length and is used in use.

When stating the pipe volume of even coiling in the use, use copper pipe ejector (uncoiler, decoiling unit) to carry out drawing of copper pipe.For example, copper pipe ejector shown in the patent documentation 1 (Fig. 3, Fig. 7 of TOHKEMY 2002-370869 communique, Figure 14 and following each section: 0009-0012,0014-0017,0039,0042,0062,0063) is arranged, with reference to the accompanying drawings this copper pipe ejector is described.

Figure 17 is the copper pipe ejector figure of expression prior art.What Figure 17 (a) used is horizontal decoiling unit, and what Figure 17 (b) used is vertical decoiling unit.In copper pipe ejector (horizontal decoiling unit) 10A of Figure 17 (a), after the reel 21 of LWC20 of being used to reel is horizontal installation, from reel 21, draw copper pipe 22, utilize guides 11, cut into the length and the use of regulation by not shown cutting off machine to drawing the direction guiding.

On the other hand, in copper pipe ejector (vertical decoiling unit) 10B of Figure 17 (b), the reel 21 of LWC20 of being used to reel is vertical be arranged on the rotating disk 12 after, from reel 21, draw copper pipe 22, utilize guides 13 to drawing the direction guiding, cut into the length and the use of regulation by not shown cutting off machine.

Figure 18 is the detailed structure view that expression is wound on the LWC on the reel shown in Figure 17.The LWC20 that is made of copper pipe 22 is the state that is wound on the reel 21.Reel 21 is made of with a pair of discoideus side plate 24 that is installed in interior barrier part 23 both sides the cylindraceous interior barrier part 23 of the multilayer copper pipe 22 of having reeled.

The problem that copper pipe ejector 10A, 10B shown in Figure 17 exists is, since the reasons such as complex structure of device, the cost height of device.Therefore, as solution to the problems described above, the known outbound course (for example, with reference to patent documentation 1) that the copper pipe that is called as " upwards drawing " (below, be called " ETTS "-" Eye to the sky ") is arranged.In addition, " Eye to the sky " also has the situation that is called as " internal diameter (ID) uncoiling " (" Inner Diameter (ID) payoff ").

Figure 19 is the instruction diagram of outbound course of the copper pipe of expression ETTS.The LWC complex 30 that has loaded a plurality of LWC32 is made a plurality of LWC32 is loaded in structure on the supporting plate 31 by padded coaming 33, and the central axial direction that makes its pipe volume is a vertical direction with respect to the upper surface of supporting plate 31.Square stock 31a that many of supporting plate 31 usefulness are wooden and so on and one or more wood-based planet 31b that is installed on these square stocks 31a are made into quadrangle.Supporting plate 31 except that wooden and, also useful plastics and metal situation.In addition, for example timber, paper wood, resin etc. make big discoideus of diameter than LWC32 to padded coaming 33 usefulness.In addition, padded coaming 33 all inserts between supporting plate 31 and the LWC32 at every turn.

A LWC32 for example, external diameter is about 1000mm, internal diameter is about 500-600mm, the height overall that comprises the LWC complex 30 of supporting plate 31 is about 1-2 meters.

Below, the copper pipe outbound course of using the ETTS mode is described with reference to Figure 19.Copper pipe 35 is after drawing upward from the inboard of the LWC32 of the epimere of LWC complex 30, in order on the line of cut about about 1 meter, to cut off with horizontality from ground, utilization is arranged on guides 34 changes of top and draws direction, is inserted into and cuts into desired length in the cutting off machine.Guides 34 utilizes metal tube or pitch tube processing and fabricating circular, and its internal diameter is made external diameter greater than copper pipe 35.Height from the face that is provided with of supporting plate 31 to guides 34 is about 2.5-3.5 meters.Cutting off machine is usually located on the cut-out line of about the 1 meter height in ground, under the on even keel copper pipe is cut off.So-called ETTS mode just is meant, from manage the inboard mode of fairlead upward of rolling up the LWC that center shaft and lift-launch face carry in vertical mode.

The feature of this ETTS mode is: owing to do not use reel shown in Figure 180 21 fully, thereby can remove the purchase commodity of reel from.In addition, owing to do not need image pattern 19 to make the LWC rotation like that, thereby do not need decoiling unit shown in Figure 17, rotating disk etc., can also reduce the equipment investment expense significantly.

Below, the method for coiling LWC32 is described.The right-hand method of arranging coiling of part to figure of on the interior barrier part 23 of reel 21 copper pipe 22a being reeled to start with as shown in figure 18, for example arranged.This arrangement method for winding is after a circle that copper pipe 22 has been reeled along interior barrier part 23, makes between the copper pipe 22 and reels with being in contact with one another, does not promptly produce the method for closely reeling with gap.

Among Figure 18, after copper pipe being wound up into right-hand member and becoming ground floor cylindraceous, arrange coiling second layer copper pipe more from right to left side, copper pipe 22 is unrolled to pipe spool direction (opposite sense).And then, again at the 3rd layer of pipe volume of this second layer pipe volume superimposed layer.Like this, after forming one deck pipe volume cylindraceous, by being called reciprocal coiling method with the method that forms the second layer pipe volume cylindraceous on it at pipe spool direction (opposite sense) coiling copper pipe 22.By such coiling copper pipe 22, can make the little LWC of volume, necessary space in the time of can reducing keeping and transportation.

Figure 20 is the section sketch of an example of the uncoiling method of expression LWC.Use after the method for coiling LWC shown in Figure 180 is wound on the reel 21, the reel 21 of dismantling is placed on the padded coaming shown in Figure 19 33, and as the situation of drawing with the ETTS mode, at first the copper pipe 22a with top draws from internal layer side direction top.Compare the copper pipe 22 of back segment with the copper pipe 22a at top, when ground floor was drawn end, the second layer was drawn from hypomere, till outermost copper pipe is drawn successively.

But, with regard to the winding form of the LWC20 of Figure 20, when this LWC20 is provided with as the LWC32 as Figure 19, owing to for example copper pipe 22b of second layer lower end, there is padded coaming 33 (or supporting plate 31) in its underpart, there is copper pipe 22 in its top, thereby is sandwiched between padded coaming 33 (or supporting plate 31) and the top copper pipe 22, is difficult to draw because of friction drag sometimes.Friction force one increase when drawing, crooked (entanglement) appears in copper pipe 22, defect ware occurs.And then, after drawing the copper pipe 22b of lower end, the second layer, the 4th layer ... all even levels all have same problem bottom.

Make the drawing to become and be easy to Fig. 3 and Fig. 7 that the uncoiling method is shown in above-mentioned patent documentation 1 of copper pipe 22b of lower end, it is illustrated among Figure 21 and Figure 22 of this specification sheets.

Figure 21 and Figure 22 are the section sketches of uncoiling method of representing to draw easily the copper pipe of lower end.Figure 21 represents is that to place top, odd number winding layer be the one-sided section of n circle, the even number winding layer LWC during for (n-1) circle for the copper pipe position that will begin to reel.N is the natural number more than 2, arranges usually and reels more than 10 circles.

As shown in figure 21, under the situation that LWC40 is drawn above the internal layer side direction, for example, the copper pipe 41a at the top of drawing from the upper end is drawn in each circle lower lateral section, and after hypomere was drawn, the copper pipe of the second layer 41 was drawn to upside.At this moment, owing between the copper pipe 41b of second layer lower end and supporting plate 31 or padded coaming 33, have the gap, thereby reduced and make copper pipe 41, can stably draw copper pipe 41 by the situation of clamping and being difficult to draw.

Figure 22 is that expression is opposite with Figure 21, and the copper pipe 41a that will draw top (beginning the position of reeling) places supporting plate 31 1 sides, from the LWC one-sided cross sectional drawing of downside when upside is drawn ground floor copper pipe 41.Among Figure 22, the number of turns of expression odd-level is n, and the number of turns of even level also is the situation of n.After ground floor copper pipe 41 was drawn, the copper pipe of the second layer 41 was drawn to downside.Even for the shape of such coiling,, thereby can equally stably draw copper pipe 41 with Figure 21 because the copper pipe 41 of copper pipe 41 hypomere when turning back upward from the below do not clamped.

But, if adopt method from existing LWC feed pipe, for example, under the situation of carrying out method for winding shown in Figure 21, in fact, because the circle from the hypomere of ground floor to the copper pipe 41b of second layer lower end is connecting with a copper pipe, thus copper pipe be positioned at part on the circumference exist to the pipe coil diameter to outer layer side and the continuous transition vertically upward of pipe volume central axis direction partly (transfer part).And, if in this transfers part to the pipe coil diameter to the transition portion that moves of outer layer side one long (begin vertically upward mobile later), then be difficult to produce the gap in the bottom of copper pipe 41, copper pipe 41 is just clamped by top copper pipe 41 and lower pallet 31 or padded coaming 33 and is difficult to draw, produce the bending (tangling plastic deformation) of copper pipe 41 sometimes.

Below, be elaborated with reference to the mobile transition portion of this sublevel of Figure 23 subtend (outer layer side) (transfer part).

Figure 23 is not having transfer portion branch part and the schematic partial sectional view of transfer portion part being arranged of expression LWC shown in Figure 21.Figure 23 (a) expression does not have transfer portion branch part, and Figure 23 (b) expression has a section of transfer portion branch part.Arrow among the figure is represented the direction of uncoiling.Figure 23 (a) do not have a transfer portion branch part, when the pipe volume number of turns of the layer of continuous two-layer internal layer side was n, then the number of turns of the layer of outer layer side was n-1 or n+1; But shift part 3 parts having of Figure 23 (b), the number of turns of the pipe volume of the layer of outer layer side vertical configuration radical of the pipe in elevation profile (in other words, for) also is n.In addition, when the configuration (position relation) of the copper pipe 2 that is conceived to be reeled, for not containing the layer segment that shifts part (is row from the copper pipe pipe volume in the elevation profile of pipe volume center shaft when radial direction cuts off at this alleged layer segment), its configuration is that the row of either party copper pipe pipe volume at least of the layer segment (internal layer side or outer layer side) of adjacency embed in the recess of formation.In contrast, for a part that contains the layer segment that shifts part (among Figure 23 (b) the 4th layer), its protuberance that is configured to form with the layer (copper pipe pipe volume row) of adjacency contact. and when the copper pipe among Figure 23 2 was drawn, for example the padded coaming (pipe is rolled up liner) below the transfer part 3 of the 4th layer hypomere is present in the copper pipe of vertical direction and is present in was clamped and is easy to generate hook etc.

Summary of the invention

Therefore, the object of the present invention is to provide a kind of pipe volume of even coiling and manufacture method thereof and the package of the pipe volume of evenly reeling, it can eliminate in the ETTS mode faults such as hook of the transfer part when LWC draws copper pipe.

The present inventor is by studying in great detail the ETTS mode, understood fully that the existence of above-mentioned transfer part and the copper pipe that configuration (configurations of the copper pipe pipe volume row in configuration below the pipe volume and elevation profile) is the ETTS mode thereof produce the reason of faults such as hook when drawing, in view of the above, finished the present invention.

In order to realize the foregoing invention purpose, the pipe volume of even coiling of the present invention is, in the pipe volume that constitutes by the pipe volume layer that pipe is closely aligned the coiling and the multilayer of back and forth having reeled, m+1 layer pipe volume layer is configured in the m layer (when the pipe volume that will evenly reel is placed to when making pipe volume center shaft vertical with the placed side, m is to be the natural number (1 of odd number under the situation of upside at the beginning position of reeling, 3,5-------), be to be the natural number (2 of even number under the situation of downside at the beginning position of reeling, 4, the outside of pipe volume layer 6------)), thereby its coiling starting end is embedded in the outer recess between the pipe of the most last circle of pipe volume layer of above-mentioned m layer and last circle thereof, it is characterized in that, the pipe of above-mentioned even coiling twists in this pipe of evenly reeling volume is placed to its pipe volume center shaft on following when vertical with the placed side, has the part that aforementioned tube shifts from m course m+1 layer (below, be called and shift part), the transfer of k+1 number (outer layer side) (k is a natural number) part the whole story end with respect to the transfer part of k number (internal layer side) the whole story end not to suitable the direction passing of the coiling direction of aforementioned tube.

" shift part the whole story end " of the present invention be meant, the starting point that shifts at the coiling of coiling Guan Shicong m course m+1 layer, that is and, the Guan Xiangguan coil diameter of the hypomere of m layer is to the point that begins to move; " shift part eventually terminal " described later be meant, the destination node that shifts at the coiling of coiling Guan Shicong m course m+1 layer, that is and, the first lap of m+1 layer is embedded into the point in the recess between the pipe of m layer outside.

In addition, " coiling direction of pipe " of the present invention be meant, pipe is wound on the coiling direction when going up such as reel, under the situation of pipe is reeled in rotations such as making reel, will the direction opposite with its hand of rotation be defined as the coiling direction of pipe.In addition, " direction that has some setbacks passing " of the present invention be meant, the state of passing or not passing to any direction to reversing sense.

In addition, in order to realize the foregoing invention purpose, the manufacture method of the pipe volume of even coiling of the present invention is the manufacture method that the pipe of the even coiling of manufacturing the invention described above is rolled up, when being wound on aforementioned tube on the reel, the part of turning back of the reciprocal coiling below the pipe volume that constitutes above-mentioned even coiling above-mentioned is by adjusting above-mentioned transfer configuration partly so that the aforementioned tube of m layer (internal layer side) was reeled to the mobile mode of m+1 layer (outer layer side) before closing on the week of reeling.

In addition, in order to realize the foregoing invention purpose, the package of the pipe volume of even coiling of the present invention, it has: supporting plate, be placed on this supporting plate one or be placed on a plurality of on this supporting plate and make the pipe volume of the even coiling of pipe volume center shaft the invention described above vertical with the placed side by padded coaming, coats the whole pipe volume that should evenly reel bag and the resin molding of the band shape of the coiling that is tensioned in the side of this bag.

In addition, " transfer part " of the present invention briefly represented with the form of " non axial transition portion " and " axial transitions part " sum; " non axial transition portion " (only comprises to the pipe coil diameter to the position of transition with only after transition radially, not to the position of radial and axial either party transition) be meant, do not roll up the part of central axis direction transition to pipe: " axial transitions part " is meant, mainly rolls up the part of central axis direction transition to pipe.In " transfer part ", " non axial transition portion " is meant between the copper pipe and pipe volume liner (padded coaming) that is clipped in the top, is easy to generate the entanglement part when copper pipe drawn.In addition, as mentioned above, with regard to the starting point of " transfer part ", copper pipe is at least to managing coil diameter to transition.

Herein, the word of definition LWC is as follows.Observe from the pipe volume central axis direction of LWC, concentric circles copper pipe side by side is called " layer ", (pipe volume center shaft) makes ground floor, the second layer to centrifugal direction number successively from the center ...The coiling circumference number of times of the copper pipe in the pipe of LWC volume central axis direction one deck is called " number of turns ", but rolls up center shaft and be arranged under the situation of vertical direction (for example, when copper pipe is drawn) will manage, also " number of turns " is called " section " sometimes.(for example be arranged under the situation of vertical direction will managing the volume center shaft, when copper pipe is drawn), the face of the vertical below of this pipe volume that will contact with the liner of pipe volume or supporting plate etc. is defined as and " below the pipe volume (lower end) or " pipe volume bottom surface ", the face of the vertical top of this pipe volume is defined as " manage and roll up top (upper end) ".In addition, to be defined as " transfer part " from the part of m course m+1 layer transition, (for example be arranged under the situation of vertical direction will managing the volume center shaft, when copper pipe is drawn), in below the pipe volume, number is made k number (internal layer side), k+1 number (outer layer side) successively ... (not considering above the pipe volume).

According to the present invention, the even coiling pipe volume and the package thereof of the faults such as copper pipe hook that the hypomere from the part of shifting is arranged in the time of can obtaining eliminating with ETTS mode feed pipe produces when drawing.

Description of drawings

Fig. 1 is the scheme drawing from the pipe volume bottom surface of the LWC of following observation first embodiment of the present invention.

Fig. 2 is the scheme drawing from the pipe volume bottom surface of the LWC of following observation second embodiment of the present invention.

Fig. 3 is the scheme drawing from the pipe volume bottom surface of the LWC of following observation the 3rd embodiment of the present invention.

Fig. 4 is the scheme drawing from the pipe volume bottom surface of the LWC of following observation the 4th embodiment of the present invention.

Fig. 5 is the scheme drawing from the pipe volume bottom surface of the LWC of following observation the 5th embodiment of the present invention.

Fig. 6 (a), Fig. 6 (b) are the scheme drawings from the pipe volume bottom surface of the LWC of following observation embodiments of the present invention.

Fig. 7 (a), Fig. 7 (b) are the scheme drawings from the pipe volume bottom surface of the LWC (object lesson) of following observation comparison other of the present invention.

Fig. 8 is the block diagram of overview of forming process of schematically representing the transfer part of LWC.

Fig. 9 represents that the end at the whole story of the transfer part of k+1 number (outer layer side) of object is held with respect to the transfer of k number (internal layer side) whole story partly as a comparison, with respect to the coiling direction of copper pipe the method for winding passed along direction, the schematic side view of the transport zone from the ground floor to the second layer and elevation profile scheme drawing.

Figure 10 is the schematic side view and the longitudinal diagram from the 3rd layer to the 4th layer transport zone of the winding method of Fig. 9.

Figure 11 is that the end at the whole story of the transfer part of expression k+1 number (outer layer side) is held with respect to the transfer of k number (internal layer side) whole story partly, with respect to the coiling direction of copper pipe neither to the method for winding of also not passing to reversing sense along direction, the schematic side view of the transport zone from the ground floor to the second layer and longitudinal diagram.

Figure 12 is the schematic side view and the longitudinal diagram from the 3rd layer to the 4th layer transport zone of the method for winding of Figure 11.

Figure 13 is that the end at the whole story of the transfer part of expression k+1 number (outer layer side) is held with respect to the transfer of k number (internal layer side) whole story partly, with respect to the coiling direction of copper pipe is the reversing sense method for winding passed, the schematic side view of the transport zone from the ground floor to the second layer and longitudinal diagram.

Figure 14 is the schematic side view and the longitudinal diagram from the 3rd layer to the 4th layer transport zone of the method for winding of Figure 13.

Figure 15 is the photo that the hypomere of the LWC that exist to shift part is taken.

Figure 16 (a) is local section (signal) figure of the LWC of relevant comparison other, and Figure 16 (b) is local section (signal) figure of the LWC of relevant present embodiment.

Figure 17 represents existing copper pipe ejector, and Figure 17 (a) is solid (signal) figure of horizontal decoiling unit, and Figure 17 (b) is solid (signal) figure of vertical decoiling unit.

Figure 18 is the scheme drawing of the expression detailed structure that is wound on the LWC on the reel shown in Figure 17.

Figure 19 is the method for copper pipe is drawn in expression with the ETTS method a instruction diagram.

Figure 20 is the section sketch of an example of the uncoiling method of expression LWC.

Figure 21 is the section sketch of the copper pipe uncoiling method of drawing easily of expression lower end.

Figure 22 is the section sketch of the copper pipe uncoiling method of drawing easily of expression lower end.

Figure 23 (a) is the local section scheme drawing that expression does not have the transfer portion branch part of LWC, and Figure 23 (b) is the local section scheme drawing that expression has the transfer portion branch part of LWC.

The specific embodiment

First embodiment---the 5th embodiment

Below, the structure of LWC at first is described.

Fig. 1-Fig. 5 be from beneath to first embodiment of the present invention---the scheme drawing of the LWC of the 5th embodiment pipe volume bottom surface.For convenience, omit the shape of copper pipe, only represented the configuration of transfer part 3A-3E of LWC1A-1E.Though the LWC of present embodiment has the identical structure of LWC with patent documentation 1 record, be present in the configuration difference of the transfer part below it.In addition, preferably make, then be odd-level (outermost layer is an odd-level) as a whole if the position that begins to reel is at upside; The position is at downside if begin to reel, and then is even level (outermost layer is an even level) as a whole.

The LWC of patent documentation 1 record has following feature:

(a) be placed vertically and the position that begins to reel is a upside in pipe spool direction, and from the pipe volume of the even coiling of inboard uncoiling, to manage and closely arrange ground coiling formation ground floor pipe volume layer, thereafter, tighten solid matter row ground coiling second layer pipe volume layer and make between its pipe that embeds above-mentioned ground floor pipe volume layer outside in the recess at this ground floor pipe volume layer, similarly later on, tighten the 3rd layer of pipe volume of solid matter row ground coiling layer at second layer pipe volume layer, tighten solid matter row ground the 4th layer of pipe volume layer of reeling at the 3rd layer of pipe volume layer, thereby constitute the pipe volume of the even coiling that constitutes by multilayer pipe volume layer; Wherein, if the number of turns of the pipe of odd-level volume layer is n, then the number of turns of the pipe of even level volume layer is (n-1), and the coiling direction of odd-level pipe volume layer is opposite with the coiling direction of the pipe volume layer of even level.

(b) be placed vertically and the position that begins to reel is a downside in pipe spool direction, and from the pipe volume of the even coiling of inboard uncoiling, to manage and closely arrange ground coiling formation ground floor pipe volume layer, thereafter, tighten solid matter row ground coiling second layer pipe volume layer and make recess and two neighbours thereof between its pipe that is configured in above-mentioned ground floor pipe volume layer outside at this ground floor pipe volume layer, similarly later on, tighten the 3rd layer of pipe volume of solid matter row ground coiling layer at second layer pipe volume layer, tighten solid matter row ground the 4th layer of pipe volume layer of reeling at the 3rd layer of pipe volume layer, thereby constitute the pipe volume of the even coiling that constitutes by multilayer pipe volume layer; Wherein, if the number of turns of the pipe of odd-level volume layer is n, then the number of turns of the pipe of even level volume layer is (n+1), and the coiling direction of odd-level pipe volume layer is opposite with the coiling direction of the pipe volume layer of even level.

(c) be placed vertically and from the pipe volume of the even coiling of inboard uncoiling in pipe spool direction, to manage and closely arrange ground coiling formation ground floor pipe volume layer, thereafter, tighten the solid matter row ground coiling second layer and it is configured in the recess and the outside thereof between the pipe of outside of above-mentioned ground floor pipe volume layer at this ground floor pipe volume layer, thereby its end that begins to reel is embedded before the most last circle of above-mentioned ground floor pipe volume layer and the most last circle between the pipe between the circle in the recess; Similarly later on, tighten solid matter row ground the 3rd layer of pipe volume layer of reeling, tighten solid matter row ground the 4th layer of pipe volume layer of reeling, thereby constitute the pipe volume of the even coiling that constitutes by multilayer pipe volume layer at the 3rd layer of pipe volume layer at second layer pipe volume layer; Wherein, if the number of turns of the pipe of odd-level volume layer is n, then the number of turns of the pipe of even level volume layer also is n, and the coiling direction of odd-level pipe volume layer is opposite with the coiling direction of the pipe volume layer of even level.

Fig. 1,2,4,5 (of the present invention first and second, four, five embodiments) expression be, hold 1a the whole story of the transfer of k+1 number (outer layer side) part with respect to holding 1a the whole story of the transfer part of k number (internal layer side), with respect to the coiling direction (be anticlockwise direction among the figure) of copper pipe object lesson for reversing sense (clockwise direction among the figure) passing.Herein, though expression is to shift the structure that part and coiling direction (anticlockwise direction) reversing sense (clockwise direction) of copper pipe are passed, also can be to shift the structure that part and coiling direction (clockwise direction) reversing sense (anticlockwise direction) of copper pipe are passed.

Fig. 1 is the scheme drawing from the pipe volume bottom surface of the LWC of following observed first embodiment of the present invention.What Fig. 1 represented is to shift part 3A to be the LWC1A that the vortex shape is passed along direction from managing the internal layer of rolling up towards skin, and the transfer of holding 1a and k+1 number (outer layer side) whole story of the transfer part of its k number (internal layer side) does not have at interval in fact at circumferencial direction between the terminal 1b end partly.Herein, so-called " at circumferencial direction in fact not at interval " is meant when mind-set centrifugal direction projection from the pipe volume, do not have interrupted part.With regard to LWC1A, from the vertical section structure of pipe volume center shaft when radial direction cuts off arbitrarily, all exist at any layer hypomere in the whichever elevation profile and shift part 3A.Figure.Fig. 2 represents is the LWC1B that the transfer part 3B of the transfer part 3B of k number (internal layer side) and k+1 number (outer layer side) passes in the mode on the following same radius of the pipe volume that is present in even coiling.

Fig. 4 represents from the scheme drawing of the pipe volume bottom surface of the LWC of following observed four embodiment of the invention.What Fig. 4 represented is to shift part 3D is the suitable direction passing of vortex shape towards skin from the internal layer of pipe volume LWC1D, at circumferencial direction (still, direction with respect to coiling pipe be along direction) exist at interval between the terminal 1b end of the transfer part of holding 1a and k+1 number (outer layer side) whole story of the transfer part of its k number (internal layer side).

Fig. 5 represents from the scheme drawing of the pipe volume bottom surface of the LWC of following observed fifth embodiment of the invention.What Fig. 5 represented is to shift part 3E is the suitable direction passing of vortex shape towards skin from the internal layer of pipe volume LWC1E, at circumferencial direction (still, direction with respect to coiling pipe be reversing sense) exist at interval between the terminal 1b end of the transfer part of holding 1a and k+1 number (outer layer side) whole story of the transfer part of its k number (internal layer side).Neutral angle (segment angle) at interval wishes in 10 °, but in preferred 5 °, more preferably in 3 °.

On the other hand, what Fig. 3 (the 3rd embodiment of the present invention) represented is, hold 1a the whole story of the transfer of k+1 number (outer layer side) part with respect to holding 1a the whole story of the transfer part of k number (internal layer side), pass the object lesson of neither reversing sense passing with respect to the coiling direction of pipe neither along direction.There are the transfer part 3C of k number (internal layer side) and the transfer part 3C of k+1 number (outer layer side) on the LWC1C shown in Figure 3 same radius below LWC1C.In addition, hold the transfer part 3C that exists in 1a and the center-point 1c below terminal 1b and the LWC1C forms eventually the sector region all below those at the whole story of the transfer part 3C that connects the outermost layer side.

The situation that concentrates on one-sided half of whole pipe volume bottom surface with the transfer portion branch is compared, and can reduce the faults such as hook of the transfer part when LWC draws copper pipe significantly.

Fig. 6 is the scheme drawing (Fig. 6 (a), Fig. 6 (b)) from the pipe volume bottom surface of the LWC of following observed present embodiment, and Fig. 7 is the scheme drawing (Fig. 7 (a), Fig. 7 (b)) from the pipe volume bottom surface of the example of the LWC of following observed comparison other.

The same expression of Fig. 6 (a) and Fig. 1 be to shift part 3F to be vortex shape ground from the internal layer of pipe volume towards skin and to pass (identical with the coiling direction of copper pipe (being anticlockwise direction Fig. 6)) along direction, perhaps opposite, shifting part 3F is the LWC1F that reversing sense (being clockwise direction among Fig. 6) is passed without exception.Fig. 6 (a) is though different with the number of plies of Fig. 1, and from the vertical section structure of pipe volume center shaft when radial direction cuts off arbitrarily, on the whichever elevation profile any layer hypomere exists all that to shift the part this point be common.

Fig. 6 (b) expression be that to shift part 3G be common passing on this point with Fig. 6 (a) with coiling direction (being the purl direction among Fig. 6) reversing sense (being clockwise direction among Fig. 6) of copper pipe, but to depart from the clockwise direction this point be different LWC1G shift part for No. 3 from internal layer.Fig. 6 (b) makes from internal layer and shifts the part of part for No. 3 by dividing identical section to exist with No. 4 transfer portion, thereby, on local section, there is not the structure that shifts part when from the structure in the elevation profile (section that comprises pipe volume center shaft) of pipe volume center shaft when radial direction cuts off.

Among the present invention, both can be the form of Fig. 6 (a), also can be the form shown in Fig. 6 (b).Do not exist preferably whole below 1/3 of elevation profile of the section that shifts part (in pipe volume bottom surface, observe from pipe volume center shaft, the total that does not have the fan-shaped segment angle that shifts part is below 120 °), be preferably below 1/4 of whole elevation profiles (total of above-mentioned segment angle is below 90 °), more preferably whole below 1/6 of elevation profile (total of above-mentioned segment angle is below 60 °).

On the other hand, Fig. 7 (a) expression be with respect to shifting part 3J from No. 2 of internal layer, the passing direction that shifts part 3J for No. 3 is the LWC1J with the coiling direction identical (anticlockwise direction) of copper pipe.Among Fig. 7 (a), shift part for No. 3 by being present in and dividing on the identical section from internal layer from internal layer number one transfer portion, thereby, be formed on not exist on the local elevation profile and shift structure partly from the vertical section structure of pipe volume center shaft when radial direction cuts off.

In addition, Fig. 7 (b) expression is to be the LWC1K of equidirectional (anticlockwise direction) from the passing direction of No. 4 later transfer part 3K of internal layer and the coiling direction of copper pipe.

The pipe volume of the even coiling of as Fig. 7 (a), reeling, drawing No. 2 transfer portion timesharing from innermost layer, owing to shift part and still existed before uncoiling for No. 3, No. 2 therefore the transfer part becomes the situation of being clamped by the extruding of the pipe of outer layer side, thereby is easy to generate hook.In addition, the pipe volume of the even coiling of as Fig. 7 (b), reeling, drawing No. 3 later transfer portion timesharing from innermost layer, because No. 4 later transfer part still existed before uncoiling, No. 3 therefore later transfer part becomes the situation of being clamped by the extruding of the pipe of outer layer side, thereby is easy to generate hook.On the other hand, for the pipe volume of the even coiling of as Fig. 6 (a) or Fig. 6 (b), reeling, owing to do not clamped and can easily draw by the extruding of the pipe of outer layer side.

In order to arouse attention, the process that the transfer portion branch forms is described in advance herein.

Fig. 8 is the block diagram of overview of forming process of schematically representing the transfer part of LWC.The downside of Fig. 8 (a)-each figure of Fig. 8 (e) is represented certain layer the hypomere of LWC.When being wound up into (Fig. 8 (a), Fig. 8 (b)) when being equivalent to hypomere part, part 3 (Fig. 8 (c)) appears shifting in order to move to down one deck (one deck is outer), shift part 3 and move to down one deck (Fig. 8 (d), Fig. 8 (e)) so just form.In addition, in Fig. 8 for the purpose of simplifying the description, with pipe volume be described as helical coil around situation.

Below, describe the method for winding of copper pipe and the configuration relation of transfer part in detail with reference to Fig. 9-Figure 14.In addition, be the end at the whole story that shifts part though Fig. 9-Figure 14 represents, actual whole story, end was the part after the position represented among the figure.

What Fig. 9-Figure 10 represented is that the transfer end at the whole story partly of k+1 number (outer layer side) of object is held along the method for winding of the suitable direction passing of the coiling direction of copper pipe with respect to the transfer of k number (internal layer side) whole story partly as a comparison.Fig. 9 is from schematic side view and the elevation profile scheme drawing (represented shift the transition of part and front and back thereof) of ground floor to the transport zone of the second layer; Figure 10 is from the schematic side view of the transport zone of the 4th layer of the 3rd course and elevation profile scheme drawing (having represented to shift the transition of part and front and back thereof).With the position of the transfer of Fig. 9 part (6 position the whole story end and 3 position terminal all the time) more as can be known, the position of the transfer of Figure 10 part surpasses and postponed (holding the whole end to the back position of figure the whole story of 8 position) in 1 week.In addition, clearly illustrate that in shifting part, non axial transition portion (part of being clamped by copper pipe and placed side) is long, then is easy to generate hook by figure.

Figure 11-Figure 12 represents be k+1 number (outer layer side) the transfer part the whole story end with respect to the end at the whole story of the transfer part of k number (internal layer side), pass the method for winding of neither reversing sense passing with respect to the coiling direction of copper pipe neither along direction, adopt this method, form LWC as shown in Figure 3.Figure 11 is from schematic side view and the elevation profile scheme drawing (represented shift the transition of part and front and back thereof) of ground floor to the transport zone of the second layer; Figure 12 is from the schematic side view of the transport zone of the 4th layer of the 3rd course and elevation profile scheme drawing (having represented to shift the transition of part and front and back thereof).As seen from the figure, the position of the transfer of Figure 11 part (6 position the whole story end-1 position terminal eventually) and the position of the transfer part of Figure 12 (6 position the whole story end-1 position end eventually) come identical position basically.In addition, clearly illustrate that, compare that in shifting part, non axial transition portion (part of being clamped by copper pipe and placed side) shortens, and then is difficult to produce hook with the situation of Fig. 9-Figure 10 by figure.

Figure 13-Figure 14 represents be k+1 number (outer layer side) the transfer part the whole story end with respect to the end at the whole story of the transfer part of k number (internal layer side), the method for winding of passing with respect to the coiling direction coiling direction reversing sense of copper pipe.Figure 13 is from schematic side view and the elevation profile scheme drawing (represented shift the transition of part and front and back thereof) of ground floor to the transport zone of the second layer; Figure 14 is from the schematic side view of the transport zone of the 4th layer of the 3rd course and elevation profile scheme drawing (having represented to shift the transition of part and front and back thereof).With the position of the transfer of Figure 13 part (6 position the whole story end-1 position terminal eventually) more as can be known, the position of the transfer of Figure 14 part (5 position the whole story end-9 position terminal eventually) 1 circle arrival in advance.In addition, clearly illustrate that, compare that in shifting part, the part that non axial transition portion is clamped by copper pipe and placed side becomes shorter (almost not having) with the situation of Figure 11-Figure 12 by figure, thereby difficult labour life hook more.

Figure 15 is the photo that the hypomere of the LWC that exist to shift part is taken.Show among the figure, different from the 8-9 layer method for winding of innermost layer with other parts.This part is to shift the part of part.

Below, the manufacture method of LWC is described.

The LWC of embodiments of the present invention can make with usual way, for example, can be (for example with above-mentioned patent documentation 1,0039 section) record the method manufacturing, but change from the method for winding of m layer (internal layer side) when m+1 layer (outer layer side) is reeled, different on the configuration this point of the transfer part below adjustment (control) is present in it.

For adjusting (control) though there is no particular limitation for the method that disposes, but for example, when being wound on copper pipe on the reel, can adopt following method to adjust, that is: shifting part should be reversing sense with respect to the coiling direction of copper pipe, and form towards skin from the internal layer of pipe volume with being the suitable direction passing in vortex shape ground, in the part of turning back of the reciprocal coiling below constituting LWC, in face of 1 week that the copper pipe of m layer (internal layer side) was reeled to the mobile method for winding of m+1 layer (outer layer side).When the mode that end is compared the front (reversing sense of coiling direction) that is in coiling direction with the elevation profile of containing pipe volume center shaft of holding the place whole story of the transfer part of k number (internal layer side) (observing in the same side from pipe volume center shaft) when the whole story of the transfer of k+1 number (outer layer side) part is reeled, then has the transfer configuration partly shown in Fig. 1,2,4,5.

The end at the whole story of the transfer part of k number (internal layer side) and k+1 number (outer layer side) is comprising on the same elevation profile (observing in the same side from pipe volume center shaft) of managing the volume center shaft, and the whole story of the transfer of k number (internal layer side) and k+1 number (outer layer side) part, end was in the same floor side that comprises pipe volume center shaft) and the end at the whole story of the transfer part of k+1 number (outer layer side) be in the same elevation profile that comprises pipe volume center shaft and (roll up the center shaft observation in the same side from pipe, be different elevation profiles with whole story end) when reeling, the configuration that then has transfer part as shown in Figure 3.

Figure 16 is the schematic partial sectional view of the LWC of comparison other and embodiments of the present invention.Figure 16 (a) expression be that copper pipe at innermost layer is wound up under the state of pipe volume end face, a plurality of LWC are stacked when tying up, copper pipe 2 ends of the innermost layer that bloats from pipe volume end face are disarrayed the situation (comparison other) of other layer.The structure of Figure 16 (b) is, in order to improve this undesirable condition, when the coiling copper pipe (when making LWC), by one-sided end stage portion 5a is set at reel 5, to enclose as n from the second layer of innermost layer, when innermost layer was enclosed (i0) as n-i, even with after reel 5 dismountings, the end of innermost layer can not fly out from pipe volume end face yet.Herein, the n-i of innermost layer circle is not to be fixed on i=0, but can suitably select according to the elastic recovery of copper pipe.The positive number of preferred i=0-2.That is, for LWC, be ground floor when establishing innermost layer, when the number of turns of the pipe of the even level that the second layer is later volume layer was n, the number of turns of the pipe volume layer of ground floor was preferably below the n, particularly n, n-1, n-2.

Below, the structure of package and the manufacture method of package are described.

Though the package of embodiments of the present invention for example has, with the identical structure of binding piece (package) of patent documentation 1 record, for the following existing but difference of configuration partly that shifts of cargo-carring LWC.Like this, the faults such as hook that shift part can significantly reduce.

The package of embodiments of the present invention can utilize the usual way manufacturing, for example, and can be according to the method manufacturing of above-mentioned patent documentation 1 record.But, be different using LWC of the present invention to replace on this aspect of LWC of above-mentioned patent documentation 1 record.

Embodiment 1

Below, embodiments of the invention are described.Make the LWC of above-mentioned embodiment, draw the evaluation of easiness (hook number of times).In the LWC that reels according to the method for winding of Figure 21, used the LWC that is configured to Fig. 1 or Fig. 4 that shifts part.Herein, the weight of each LWC is 160-250kg, and 20 pipes is involved in gone test.

As copper pipe, used external diameter to be the deoxidation phosphorus inner face trough of belt made of copper pipe of 0.25mm (below, abbreviate " copper pipe " as) as 7mm, average wall thickness.

On the other hand, as a comparative example, in the LWC that the method for winding of pressing Figure 21 is reeled, used the configuration of shifting part shown in Fig. 7 (a), Fig. 7 (b), in the coiling direction something in common of the passing of the transfer part of pipe volume bottom surface) LWC.Each weight of the LWC of comparative example also is 160-250kg, 20 pipes is involved in gone test.

Evaluation result is shown in table 1.Table 1 is illustrated in the tired note number of times of copper pipe generation hook when drawing copper pipe.

Table 1 is drawn the evaluation result of easiness (hook number of times)

	Comparative example 1	Embodiment 1
			LWC (each 20 pipe volumes)	The method for winding of Figure 21 is with Fig. 7 (a), the identical configuration of Fig. 7 (b)	The method for winding of Figure 21, the configuration of Fig. 1, Fig. 4
Produce the tired note of hook number of times	47 times	0 time

Clearly illustrated that in comparative example, have the hypomere of 19 pipe volumes to produce hook in 20 pipe volumes by table 1, the hook number of times amounts to and takes place 47 times.Though the degree that is easy to generate hook at this moment depends on the degree (to the number of the transfer part of passing with the passing amount of the coiling direction equidirectional of copper pipe and/or to the direction identical with the coiling direction of copper pipe) of partly passing the counter-rotating of direction in the transfer of pipe volume bottom surface, almost all the pipe volume has all produced hook.In contrast, in an embodiment, do not produce hook 1 time.Usually, if when copper pipe is drawn, produce hook, then must after stopping cutting off machine and eliminating hook, reset cutting off machine again.But,, can carry out operation expeditiously because of not producing hook according to the present invention.

Claims (14)

1. a pipe of evenly reeling is rolled up, in the pipe volume that constitutes by the pipe volume layer that pipe is closely aligned the coiling and the multilayer of back and forth having reeled, m+1 layer pipe volume layer is configured in the outside of the pipe volume layer of m layer, thereby its coiling starting end is embedded in the outer recess between the pipe of the most last circle of pipe volume layer of described m layer and last circle thereof, it is characterized in that:

The pipe of described even coiling twists in this pipe of evenly reeling volume is placed to its pipe volume center shaft on following when vertical with the placed side, have part that described Guan Congdi m course m+1 floor shifts, k+1 number the transfer part the whole story end with respect to as k number transfer part of its internal layer side the whole story end not to the suitable direction passing of the coiling direction of described pipe;

M wherein is, when the pipe that will evenly reel volume is placed to when making pipe volume center shaft vertical with the placed side, m is to be the natural number (1,3,5-------) of odd number under the situation of upside at the beginning position of reeling, and is to be the natural number (2,4,6------) of even number under the situation of downside at the beginning position of reeling;

K wherein is a natural number.

2. the pipe of even coiling according to claim 1 is rolled up, and it is characterized in that:

The end at the whole story of k+1 number transfer part is passed to the reversing sense of the coiling direction of described pipe with respect to k number the transfer end at the whole story partly as its internal layer side.

3. the pipe of even coiling according to claim 1 is rolled up, and it is characterized in that:

K number transfer partial sum partly is present in as k+1 number transfer of its outer layer side on the following same radius of pipe volume of described even coiling.

4. the pipe of even coiling according to claim 1 is rolled up, and it is characterized in that:

Described following transfer is held in the zone of the following formed fan shape of rolling up with the whole end and the pipe of described even coiling of center-point whole whole story that are present in the outermost transfer part of connection partly.

5. the pipe of even coiling according to claim 1 is rolled up, and it is characterized in that:

The described part that shifts is vortex shape ground from the internal layer of described pipe volume towards skin and passes, make k number the transfer part the whole story end with k+1 number transfer whole end partly as its outer layer side between do not have the interval in a circumferential direction in fact.

6. the pipe of even coiling according to claim 1 is rolled up, and it is characterized in that:

The described part that shifts is vortex shape ground from the internal layer of described pipe volume towards skin and passes, make k number the transfer part the whole story end with whole end as k+1 number transfer part of its outer layer side between have the interval with respect to the coiling direction of described pipe in vain for the direction of suitable direction in a circumferential direction.

7. the pipe of even coiling according to claim 1 is rolled up, and it is characterized in that:

From the vertical section structure of pipe volume center shaft when radial direction cuts off, not having the described section that shifts part is below 1/3 of whole elevation profiles.

8. the pipe of even coiling according to claim 1 is rolled up, and it is characterized in that:

From the vertical section structure of pipe volume center shaft when radial direction cuts off, described transfer part all exists on the section.

9. the pipe of even coiling according to claim 1 is rolled up, and it is characterized in that:

Coiling beginning position is under the situation of upside, and described multilayer pipe volume layer is odd-level as a whole, is that its outermost layer is an odd-level; At the beginning position of reeling is under the situation of downside, and described multilayer pipe volume layer is even level as a whole, is that its outermost layer is an even level.

10. the pipe of even coiling according to claim 1 is rolled up, and it is characterized in that:

In the pipe of described even coiling volume, be ground floor with the innermost layer, when the number of turns of establishing the later even level of the second layer was n, then the number of turns of ground floor was less than n.

11. the manufacture method of a pipe volume of evenly reeling is the manufacture method of the pipe volume of any described even coiling in claim 1 claim 10, it is characterized in that:

When being wound on described pipe on the reel, the part of turning back of the reciprocal coiling below the pipe volume that constitutes described even coiling described is by adjusting the described configuration partly of shifting so that the mode that the described pipe of m layer moved to the m+1 layer as its outer layer side is reeled before closing on the week of reeling.

12. the manufacture method of the pipe of even coiling according to claim 11 volume is characterized in that:

Its winding method is, make the end at the whole story of k+1 number transfer part compare front, the i.e. reversing sense of the coiling direction of pipe, or same position that is in coiling direction with the profile that comprises as the pipe volume center shaft of holding the present position whole story of k number transfer part of its internal layer side.

13. the manufacture method of the pipe of even coiling according to claim 11 volume is characterized in that:

Described reel is provided with stage portion at a side end, thereby the end of described pipe of innermost layer of the pipe volume of described even coiling can not flown out.

14. the package of a pipe volume of evenly reeling, it is characterized in that, have: supporting plate, be placed on this supporting plate one or be placed on the pipe volume of a plurality of pipes volume center shafts on this supporting plate claim 1 vertical any one described even coiling to the claim 10 with the placed side by padded coaming, coats the whole pipe volume that should evenly reel bag and the resin molding of the band shape of the coiling that is tensioned in the side of this bag.

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