JPS5992872A - Winding package of soft material, method of winding said package and its machine and instrument - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method and apparatus for winding flexible elongated materials such as wire, rayon fiber, glass fiber, thread, twine, rope, ribbon, tape, elongated plastic sheet, cable, etc. around a core material. The present invention relates to a method of packaging such a wound body, a package manufactured by such a method and apparatus, and an end shape on a core material on which such a wound body is formed. More particularly, the present invention provides bendable and
Regarding the winding and formation of fibrous or ribbon-like ties with various lateral surface shapes, materials that have a very slippery upper surface and have special elongation properties, or are wound into a packaging shape. Depending on the material for which minimal surface pressure and/or minimal stretching forces are required.

The present invention is based on U.S. Pat. No. 3.1, assigned Bm
This invention relates to an improvement on the technique disclosed in No. 78,130. The method, apparatus values, and packages formed thereby according to the invention of this patent are limited by the package diameters described in the specification. In the past, limiting the packaging diameter was considered necessary. This is because the end of the core around which the package is wound was contoured using graphic techniques to create a circular curved shape at the end from the center point on the outside of the final package. . Any graphical or geometrical technique that imparts a circular curvature to the terminal ends will limit the upper limit of the package diameter.
This is because the shapes (circular) begin to converge.

Another problem with the technology disclosed in the aforementioned US patents is that the circular curvature is only an approximation of the precise path that the winding takes as the winding diameter changes. If the geometrical contour of the end is not precise, the end of the winding is likely to slip into the winding valleys as the winding is wound.

Such slippage to the valley surface ultimately obscures the payout hole, which is formed as a radial opening in the side of the winding from the exterior of the winding to its inner space. In such a winding formed with radial holes, it is preferable that the material is fed from inside the winding through the radial hole and into the feed hole. Obstructions due to internal windings can cause twisting problems. this is,
This is prohibited because the winding becomes entangled with other windings when being unwound from the radial aperture, making the winding hole unclear.

Historically, the slippage of the winding has obscured the payout hole, making it difficult to locate the payout hole. If the position of the feeding hole is not correct 1), this will result in the occurrence of a charge that intersects with the winding in the feeding hole, which is generally a result of this material not being fed out. Become.

Furthermore, if the ends of the core around which the material is wound are too wide at any point in the winding state, the wound material (especially in high winding cool summers) will wither and the winding If the diameter is less than the diameter of the winding formed by turning, tangles will thus occur when the Ih is drawn out through the drawing-out hole formed in the radial hole on the side of the winding.

Also, if the material slips to a diameter that is less than the winding diameter, it will not be possible to compress the material without damaging it and the wrapping process will not be able to continue. If the diameter is less than J1, the loop will be longer than 3H. This is because the VC winding diameter increases slightly during the compression process.

The above-mentioned US patent describes a design method for quickly reversing angles as the windings are wound around the core to obtain linear and circular approximations. In today's winding devices, different cams are available that provide a wide range of reversal angles. However, in the method described in the above-mentioned US patent,
Due to the longer cam reversal angle (eventually passing through a sinusoidal path), the approximation by the geometrical approach of forming the termination results in an increased error. .nu.IJ, when using the design method disclosed in the above-mentioned patent, the problem arises that the diameter of the winding is reduced, and it also results in an unsatisfactory and unstable winding.

According to the invention, the design procedure for forming the winding includes at least the following winding variables: width of the transverse member, core diameter, class Il:III of the cam, end diameter, progress of the winding. Scratch,
and the distance of the guide from the core must be taken into account. These variables, which are interrelated by mathematical formulas, define how the material is wound. From this mathematical relationship according to the present invention, information is obtained or derived that defines and governs these and other variables for proper winding. Furthermore, the termination of the core around which the winding is wound is also derived from the above-mentioned mathematical relationships.

It is therefore a primary object of the present invention to provide a self-supporting wrap of flexible material, in which the flexible material is free from damage due to the scissoring action of closely intersecting ribs. In order to avoid mechanical bending effects, they intersect at relatively wide radial intervals. This flexible material is helically wound forming a relatively small angle K with respect to the shaft grain, so that the winding can be unwound from the ends or the center of the winding with almost no frictional resistance. It will be served. This flexible material may be inverted at the ends of the wrapper without angular deviation and may be stacked with very low tensile forces without slipping, thereby allowing the flexible material to rest on the supporting core. , or accommodated with minimal pressure to break away from it.

In addition, when the support core is removed, it does not collapse and maintains its self-supporting properties completely, so that the windings can extend from the outside of the center or both ends, or in the radial direction extending from the outside of the side of the winding body to the inner axial cavity. Allow it to be freely pulled out through the hole.

Another object of the invention is to determine a particularly advantageous geometry of the wound core and the shape of the termination end associated therewith;
It is also an object of the present invention to provide a machine using said wound core and terminations to obtain a desired winding or package based on various winding variables defined by mathematical relationships.

Another object of the present invention is to overcome the difficulties in the geometrical techniques disclosed in the aforementioned U.S. patents and to overcome the aforementioned limitations of being limited by the winding diameter of the flexible material being wound, in particular All parts of the winding body at the outer end of the winding when the winding is wound
It also prevents the formation of obstructions in the dispensing holes, thereby preventing tangling and reducing the resistance of the material being dispensed through the radial holes from within the windings of the final package. It is to do so.

Yet another object of the present invention is to provide an optimal shape of a self-supporting winding, a core and the end portion on which said winding is wound, in accordance with various winding variables, e.g. The diameter of the winding body, the width of the winding body, the stroke of the guide, the distance of the guide from the core axis, and the amount of winding progress are defined by a mathematical relation, and the prior art method and apparatus are thereby The object of the present invention is to provide a method for material winding that is superior to that realized in the present invention.

Still another object of the present invention is what kind of substance, how/
7. Under the applicable conditions or what t! 11 It provides a winding package with optimal self-supporting winding properties even for packaging of various sizes or sizes, and furthermore, it is possible to provide a winding packaging body with optimal self-supporting winding property even for packaging of various sizes or sizes, and furthermore, it is possible to provide a winding packaging body that has a self-supporting winding property that is optimal for packaging of various sizes or sizes, and furthermore, it is possible to provide a winding packaging body that has a self-supporting winding property that is optimal for packaging of various sizes or sizes. This can be accomplished by providing a complete set of trout that has the optimum dimensions for the entire roll.

Another object of the present invention is to prevent flat or tape-like materials from being produced, which pose significant problems and require complex machinery to effectively wrap around cores and ends of conventional designs. An object of the present invention is to provide a method for designing an advanced core for punching and dispensing materials capable of bending, including materials with similar properties.

The present invention, in its various aspects, is suitable for methods and apparatus involving packaging material wound in a figure-eight configuration having at least one radial hole extending from the exterior of the roll to its inner core. However, winding into other shapes can also be applied, especially in the textile industry.

Next, the present invention will be explained in more detail with reference to the drawings.

FIG. 1 shows the basic shape of the core and the shape of the termination formed at its end according to the invention. Core 12 has a generally curved outer surface 14 and a termination 16 having a geometrical shape on an inner surface 18 formed as described below. A guide (not shown) traverses the passage designated by the number 2o, the passage traversed by this guide being the core 12.
parallel to the longitudinal axis of the

In a winding machine used for winding, the terminal end 16 is the core 1.
2, or one or both of the terminal ends 16 may be removably attached to the core 12. Any of these formulations are well known to those skilled in the art to which the present invention pertains. Additionally, the outer surface 14 of the core 12 may be spherical, elliptical, or otherwise rounded, preferably sloping downwardly from the center of the core 12 to the terminal end 16. Therefore, the shapes of the core body and the end portion shown in FIG. It should be understood that this is not the case. Furthermore, wood cutting A1
The invention described in 1i 2 is applicable not only to compressible cores and end faces known in the field of winding technology, but also to expanded field "T".
'fjL type core body can also be used.

FIG. 2 is an explanatory diagram of a winding machine according to a known technique to which the method of the present invention can be applied. The core body 12 is rotatably attached to a shaft 22 driven by a motor 24 through a gear 26. The motor 24 also rotates a shaft 28 which has a pin 34 that engages a hole 36 in a lever 38 that pivots at a pivot point 40 through a heart-shaped cam 30 and which has a threaded guide 42. 32. The operation of such devices is well known to those skilled in the art to which the invention pertains and does not require detailed explanation in understanding the invention. Briefly, motor 24 rotates shaft 22 through gear 26, thereby rotating core 12 about the longitudinal axis at a speed determined by the rotational speed of motor 24 and the gear ratio of gear 26.
rotate. Heart-shaped cam 30 is also driven by motor 24 and guides transverse guide 42 through passage 2.
0 in a reciprocating manner. This increase in the amount of winding is determined by the positional change of the transverse guide 42 across the passageway 20 with respect to a particular position on the core as the core 14 rotates during the winding process. However, the present invention is intended to apply to the technology described in U.S. Pat. ing.

When the heart-shaped cam 30 rotates, the guide or Ujj prevention member 42 operates as shown in the explanatory graph of FIG. That is, the cross member 42 moves from zero to position b in a straight line area.
Move from X c to eX f to H.

Is f from cXe a sine? It is written as if it were J. In this regard, it is understood that the method, device, wrapper or roll according to the invention can be applied to cams of any shape and is not limited to sinusoidal or quasi-sinusoidal cams. Should.

Figure 4 shows that the end of the winding thread is 9+i Ili and dG in the figure.
u is the distance of the guide from the positive point X1 on the rough rotation portion 44. From Bicgoras's theorem, Gd-7 (1).

In the above equation, Gd is the distance of the kite 42 from the shaft center 46: ii-? ? rm is the radius of the same part of the winding 440. These functions create numerical formulas for the winding and winding machine 41°4 in the variables 41i and 11, as explained in more detail below. used in cases.

Item 51 is any winding wire on the winding core or assembly! /ζ
shown in one plane. The song of arbitrary trajectory is Ji
It has J degree φ (see Figure 4). X axis or +i'j,
lll1ft passes through the center of the 01 core and also passes in a direction perpendicular to the core axis attached to the core.

In FIG. 5, Ym is the position of the material on the core (or wound body) at any position X. YG is Ym
The position of the transverse member when it is located at a certain position (I).

Therefore, Xl is the tangent point in FIG. Either dG changes over time, or such changes cannot be considered as continuous developments. Because such analysis
This is because dG and Gd are known at any time, and therefore, this is done under quantitative conditions where dG is known.

Considering FIG. 5, once the winding wire 48 leaves the core or winding body, the winding wire moves toward the guide 42. The angle φ must be continuous at point X1. The above does not imply that the material does not undergo a certain acute curvature at point X1.

From the above, It can be seen that the following holds true.

The tangent φ is the slope of the winding from the tangent point X1 to the guide 42. Since the wire or wound material is continuous and has no sharp curves or
) is also.

Equation 2a gives the rate of change of the winding edge position with respect to the spatial movement evaluated at point X1. This is quiet relative to the slope of the curve Ym.

From equations 2a and 2b, differential equation YG=dGm+Ym (3) Kerr 14
-I get caught.

Equation 3 describes the winding yarn under all conditions for all winding layers, increments, cross widths, etc. From the right side of equation 3, the compensatory answer is: (DdG+1)Ym=0
(3a) D is a differential operator, i.e. Dm-8 x f) dG+1=OD; -- dG Yc = C1e -X/dG (3b).

5t, Y answer is YITI = Y c 1yp, Y
c must be the same for all the winding bodies, and the initial condition of the winding body (
It should be noted that it depends only on the boundary conditions (or boundary conditions). Ypil: specific answer depends on the force of the cam used If for a cam that is sinusoidal YG=A sinωc
Assuming that
cocX +Fcos ωcX (3c) BXF and Ym
Solving for , the result is the following equation: Equation 4 completely describes the open path for the sinusoidal cam. Note that ωC is a function in feet. ωC is a space JM# where j rank is feet per radian.

It is clear that is an extremely small number.

For example, if dG is equal to 1 foot, after 10 feet of winding it is close to zero and can be ignored.

Under this condition, From now on, I will do the goods etc. ) It is obtained when , and at this time, the maximum value is From formula l Here, Dm is equal to the diameter of the wound body.

1+G Dm (5b) where G is the amount of increase.

Twist it, During the ceremony, A = double guide stroke, Gd = guide distance from core center line axis, G = increase amount of wound body, Dm = Width winding body diameter, and Ym=spring winding body h11.

For example, Equation 5c is the guide stroke, guide distance (
(from core distance j), the diameter of the wound body and the width of the wound body,
Regarding seven additions. Create a plot of equation 5c, y:I
The shape of the curved surface part can be determined.

Guide distance i+it (Gd), opening SL diameter of the wound body (D
m) and "u+'=H' (If (G) is separated, the normal (T1) angle Ym (max) can be found.

Equation 5c is heavy. In the example, if the stroke of the guide is known, the width of the core can be determined, or conversely, if the width of the core is known, as will become clear from the following explanation. This is because the stroke of the guide can be determined.

Below, the construction of the termination section according to the method of the present invention is shown.

Unexploded 1jJ, In the preferred disaster mode of J, the termination is shaped J for an 8 inch diameter core (core diameter is the maximum width of the core in the b4 direction relative to the longitudinal axis of the core). It is something. The curved surface 14 of the core has its ends i, js
17 (The core next surface 14 is connected to the terminal end 16 as shown in FIG.
It has a diameter of 6 and a half inches at the point where it mates with the entrance surface of the tube.

If the kite has a stroke of 11 and a half inches, the diameter of the terminal end is 18 inches, and the guide 42 is a half inch away from the terminal end (the end of the ramming passage 20). Furthermore, the terminal end 16 in this embodiment is twisted 414 times so that the yarn has an average winding amount of 414. Sidewise for the above conditions: A = 11 and a half inches, and d = 9 and a half inches (18 inches diameter at the end divided by 2, plus the guide distance of 1/2 inch) G = zero , and Dm = variable between 6.5 inches and 18 inches.

Since G is equal to zero, Equation 5c shows that when Dm is varied every quarter inch from 6.5 inches to 18 inches, the values of variables Ym and Dm are as shown in Table 1 below.

12th〈1)m Ym (3,56,77 7,07,14 7,57,49 8,07,82 8,58,13 9,08,42 g, 5 8.6910.0
8.9510.5
9.1811, (19,40 11,59,61 12,09,80 12,59,9B 13.0 10.1513.5
10.3114.0
10.4614.5
10.5915,Q
10.7215.5
10.8416.0
10.9516.5 1
1.0617.0 11
．． 1617.5 11.
2518.0 11.3
It should be noted that once the four core diameter is chosen, its width is determined to be determined by Equation 5d. In the above example, the core width is 6.7 inches. The core width is defined by the opposite spacing at positions 17 and 17 (FIG. 1), which is equal to the turn or coil width of the first turn layer (in which case the core diameter is also the turn width). diameter).

Figure 6 shows the i'A ratio between the winding width and the winding diameter under the conditions of the above example.
The curve at the end of +<1 person is shown.

Another example of the end shape according to the present invention is shown in Table 2 and Figure 7.

Table 2 4.5 5.945
11 6.405.
5 6.83G, 0
7.2165
7.567.0
7.887.5
8.168.0
8.428.5
8.669.0
8.879.5
9.06!0.0
9.241 [1,59,39 11,0<), 54 11.5 9.67
12 0, 9.79
In this example, the diameter of the end leak is 12 inches and the core diameter is 6 inches. Moreover, this curved surface 18 (Fig.
The diameter of the core at the junction point 17 (Fig. 1) with 18 is 4
．． It will be 5 inches. Assume that the guide distance is half an inch and the amount of winding is zero. The guide stroke is 10
Assume that it is 1 inch.

Therefore A-10 inches, Gd = 6.5 inches, G =
Zero, Dsn+'-t is a variable from 4.5 inches to 12 inches. In this second example, the width of the core is 5,9
It is 4 inches.

FIG. 7 illustrates the geometry of the termination and the curve of the general shape of the core. In Figure 7, ζ, the winding width Ym is plotted against the winding diameter Dm, and the end contour 50 can be shaped.

By using Fig. 7 (it will be scaled up in actual use), the curved surface area (outer bottom surface of the terminal part S)
After the tool has been used to measure the radius, a step of forming or cutting out such a dome shape from a suitable termination material, such as aluminum or steel, can be performed. Number? A BLJ lathe can also be used for this purpose, and the information shown to the second person is entered into a program computer that controls the lathe to form the termination. A clearer view of the jW valley can be obtained by applying the equation sd (or 5c) for the phase 1 point that defines the curved surface of the final pair) 1 part.

The above example explains how the shape of the terminal end is determined from Equation 5d. . However, the shape of the termination can also be determined using Equation 5C for non-zero winding increments.

Unknown + MI + '4 for the increase in winding at 7F is the change in radian amplitude, i.e. ωC of the horizontal direction guide with respect to the core
It is. Before this increase, it may be a positive value or a negative value. For example, a positive value means that the radian amplitude of the transverse guide is in the direction of travel with respect to the radian amplitude of the core. Similarly, a negative value means that the radian amplitude of the transverse guide lags behind the radian amplitude of the core. This winding advance can also be expressed as a positive or negative percentage. For example, an advance of +1% indicates that the radian amplitude of the transverse guide is increased by IX with respect to the radian amplitude of the core. Similarly, an advance of minus 1% means that the radian amplitude of the transverse guide lags behind the radian amplitude of the core by 19 g.

The invention as described herein and in the claims is suitable for winding configurations in the form of a figure 8 on bamboo. - one turn has one crossover in the form of an 8 in each turn layer, occurring for each double rotation of the core for each complete reciprocating transverse stroke of the transverse guide; It is something. In short,
- in the case of a turn, the ratio of the core radian amplitude to the radian amplitude of the transverse guide is equal to an integer 2; Similarly, the double winding is performed in a figure-eight cross winding configuration.
Each winding has a sharp double figure 8 crossover, IK i6
'The ratio of the core radian amplitude to the i-direction guide radian amplitude is equal to 4. Thus, for two turns, the ratio of the core radian amplitude to the transverse guide radian amplitude is equal to 6, and is similarly calculated for four turns and five turns.

It should be understood that the present invention is not limited only to the embodiments described in the embodiments, but may include modifications that will readily occur to those skilled in the art.

[Brief explanation of drawings]

FIG. 1 is an illustration of the core body and the F:g part in an exemplary embodiment of a dud; FIG. 2 is an illustration of a device according to the prior art for winding flexible monthly rates; Fig. 3 is a graph showing the movement of the qr section due to the cam configuration; Fig. 4 is a graph showing the development of the method and device for forming a wound body due to a non-explosion. An end view of the winding device for explaining the N coefficient of the ridge variables for the purpose of the invention; FIG. Figure 6 is a graph of diameter versus winding width for specified variables in a preferred embodiment of the invention; 671-1 is a diagram illustrating the manner in which the terminal end portion is developed with respect to the wound core body according to the present invention. In the figure, number 12 is the core body, 14 is the curved outer surface of the core body, and 16
18 is an inner surface of the terminal end, 30 is a cam, 42 is a cross section or guide, 44 is a winding body, and 48 is a winding wire. Patent Applicant: Windings, Inc.・6'

Claims (1)

[Claims] 1. A machine for winding a flexible material, comprising: a core; means for rotating the core around its longitudinal axis; a guide;
means for reciprocating the guide substantially parallel to the longitudinal axis of the core body; the core body having at least a portion thereof having a portion where the diameter of both ends decreases in the direction of the ends; The curvature of the wall of said end is determined by the following equation 2, where A is equal to the stroke of the guide, Gd is equal to the distance of the guide from the core centerline axis, and G is the winding. A machine characterized in that Dln is equal to the advancing distance of the rotating body, Dln is equal to the diameter of the rotating body, and Ym is equal to the width of the winding, etc. 2. The machine according to claim 1, characterized in that the portion where the diameter decreases has a spherical shape. 3. The machine according to claim 4, wherein the core further has a cylindrical center. 4. In the machine according to any one of claims 1 to 3, when the winding progress G is zero, the dog wall at the end is defined by the following formula: A machine featuring: 5. A flexible monthly charge wrapper wound in a figure-eight shape, the cross-section of the figure-eight being arranged at an angle to wrap around the wrapper; It has an inner surface forming an inner hole, the diameter of said inner surface gradually decreases, and an end portion bulges outward relative to the phase line of the package, and the inner wall of said end portion has the following formula: A, the curve is equal to the stroke of the guide, Gd is equal to the distance of the guide from the centerline axis of the core body ^1, and G is equal to the progression ii of the wound body. , Dm is equal to the diameter of the wound body, and Ym is equal to the width of the wound body. 6. The packaging body according to claim 5, wherein the diameter fl (decreased by 1 A package characterized in that its portions are spherical. 7. A rolled package of flexible material according to claim 5, characterized in that the inner surface includes a cylindrical central portion. Packaging body. 8. In the packaging body according to any one of Claims 5.6.7, when the winding progress bar G is zero, the round wall at the end portion is defined by the following formula: 9. A core for a winding machine, having at least in -↑GIS a portion where the diameter of both ends decreases in the direction of the ends;
It further has an outwardly bulging terminal end, the curvature of the wall of said end being determined by the following formula: where A is the stroke of the guide.
, Gd&-1 is the distance of the guide from the centerline axis of the core body,
G is the amount of advance of the winding body, Dm is the diameter of the winding body,
A core body characterized in that Ym is the width of the wound body. ``%'i'l The core according to claim 9,
4! The portion where the diameter gradually decreases is spherical! Core body as a sign. 11. The core according to claim 9, characterized in that the core further includes a cylindrical central portion. 12. Any one of Claims 9, 10 and 11
The core body described in section 1, wherein the winding progress 1f1. crab zero 1
14, ny: A core body in which the curved curves V and j at the ends are determined by the lower 1-way equation:. 13. A method of winding a flexible monthly wire around a plurality of 1N screwed together by rotating a core to form a winding around a predetermined axis; Substantially parallel distance N from this
reciprocating the transverse guide with staggered strokes along paths spaced apart i1LGd; With respect to the position 1d of the core body, the amount of advance A of the winding body indicated as a change in the position of the transverse direction guide is adjusted. At least one radial hole extending from the inner layer to the outermost layer of the winding body is formed, thereby forming a winding body having a winding body diameter Dm and a filter width Ym, and the winding variable is determined by the following formula: : A method characterized in that the method is characterized in that it involves "one evening" with the user. 14. A method for winding a flexible material according to claim 13, characterized in that when the winding progress ftG is zero, the winding variable is limited by the following formula: .