EP2671833A2

EP2671833A2 - Automatic winder

Info

Publication number: EP2671833A2
Application number: EP13164187.0A
Authority: EP
Inventors: Kei Inoue
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 2012-06-08
Filing date: 2013-04-17
Publication date: 2013-12-11
Anticipated expiration: 2033-04-17
Also published as: EP2671833A3; EP2671833B1; CN103482422B; JP2013252964A; CN103482422A

Abstract

An automatic winder (100) includes a winding unit (10) that unwinds a yarn from yarn-wound bobbins (YB) mounted on trays (22) and forms a package, a bobbin transporting device (11) that transports the trays (22), a bobbin supplying device (12) that supplies a yarn-wound bobbin (YB) to a tray (22) with no yarn-wound bobbin (YB) mounted thereon from among the trays (22) transported by the bobbin transporting device (11), a bobbin removing device (13) that removes yarn-unwound bobbins (B) from the trays (22) that are transported by the bobbin transporting device (11), and a collection box (40) into which the yarn-unwound bobbins (B) removed by the bobbin removing device (13) and introduced in uniform bobbin tube large/small-end orientation are collected. The bobbin supplying device (12) includes a box mounting member (43) on which the collection box (40) is mounted.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an automatic winder.

2. Description of the Related Art

Automatic winders that have plural winding units arranged side by side are known in the art. A bobbin-tray type automatic winder typically includes plural winding units, a bobbin supplying device, a bobbin transporting device, a yarn-unwound bobbin removing device, and such like. Bobbins around which a spun yarn by a spinning machine is wound (hereinafter, "yarn-wound bobbins") are loaded into a container in bulk, transported to the bobbin supplying device, and introduced into the bobbin supplying device. The bobbin supplying device isolates each bobbin from a pile of the introduced yarn-wound bobbins, and then mounts the isolated yarn-wound bobbins onto trays of the bobbin transporting device. The bobbin transporting device transports the yarn-wound bobbins to each of the winding units. Each winding unit unwinds the yarn from the yarn-wound bobbin that is mounted onto the tray to form a package.
The bobbins from which the yarns have been completely unwound by the winding units (hereinafter, "yarn-unwound bobbins") are discharged from the winding units by being transported on the trays of the bobbin transporting device. The yarn-unwound bobbin removing device removes the yarn-unwound bobbins from the trays of the bobbin transporting device. A fresh pile of yarn-wound bobbins are loaded by the bobbin supplying device on downstream-side ones of the trays, from which the yarn-unwound bobbins have been removed.
Meanwhile, the yarn-unwound bobbins removed by the yarn-unwound bobbin removing device are discharged into a collection box through a yarn-unwound-bobbin chute. The collection box is arranged at a location that is different from where the bobbin supplying device is located, for example, on the floor. Because space needs to be procured at the location separately from where the bobbin supplying device is located to arrange the collection box, the automatic winder has a disadvantage from space-saving perspective.
Furthermore, the operation of removing the yarn-unwound bobbins from the collection box that is arranged at the location different from where the bobbin supplying device is located also has to be performed away from where the bobbin supplying device is located. The acts of supplying the yarn-wound bobbins from the pile to the bobbin supplying device and removing the yarn-unwound bobbins from the collection box at different locations increases a movement distance of an operator.
Moreover, when the yarn-unwound bobbins pass through the yarn-unwound-bobbin chute, the orientations of the taper-shaped bobbin tubes are uniform with respect to the large-diameter end and small-diameter end of the bobbin tubes in an axial direction thereof (bobbin tube large/small-end orientation). However, the yarn-unwound bobbins, after having passed through the yarn-unwound-bobbin chute, are introduced haphazardly into the collection box, leading to disarray with random bobbin tube large/small-end orientations. When returning the yarn-unwound bobbins to the spinning machine thereafter, the bobbin tube large/small-end orientations of the yarn-unwound bobbins need to be made uniform again. If the bobbin tubes large/small-end orientations of the yarn-unwound bobbins are not uniform, a bobbin aligning task needs to be performed to make the bobbin tube large/small-end orientations of the yarn-unwound bobbins uniform before returning the yarn-unwound bobbins to the spinning machine. In the conventional apparatus, this troublesome bobbin aligning task is performed manually by the operator.
Japanese Patent Application Laid-open No. H3-111383 proposes a bobbin box 52 that accommodates discharged yarn-unwound bobbins with uniform bobbin tube large/small-end orientation thereof. However, apart from the bobbin box 52, a receiving member 54 is also required. Moreover, the bobbin box 52 needs to be divided into compartments by using dividing panels 55, and therefore a conveyor 51 is required for performing pitch feeding of the bobbin box 52. Furthermore, the bobbin box 52 is arranged in a yarn-unwound bobbin processing apparatus, and no bobbin supplying device is cited.

SUMMARY OF THE INVENTION

The present invention has been made in view of the problems described above. One object of the present invention is to realize a compact automatic winder to achieve space-saving. Another object of the present invention is to shorten the distance for which the operator has to move for performing the tasks by bringing the locations where the tasks of supplying the yarn-wound bobbins from the pile to the bobbin supplying device and removing the yarn-unwound bobbins from the collection box close to each other. Still another object of the present invention is to render unnecessary the bobbin aligning task to make the bobbin tube large/small-end orientations of all the yarn-unwound bobbins uniform.
The problems that the present invention has been made to solve have been explained above. The means to solve those problems are explained below.
That is, an automatic winder according to an aspect of the present invention includes a bobbin transporting device, a bobbin supplying device, a winding unit, a bobbin removing device, and a collection box. The bobbin transporting device transports a plurality of trays. The winding unit unwinds yarns from the yarn-wound bobbins mounted on the trays being transported by the bobbin transporting device to form a package. The bobbin supplying device supplies yarn-wound bobbins to empty trays that are being transported by the bobbin transporting device so that the bobbin transporting device transports yarn-wound bobbin mounted trays to the winding unit. The bobbin removing device removes yarn-unwound bobbins, which have become empty due to unwinding of yarn by the winding unit, from the trays that are being transported by the bobbin transporting device. In the collection box, the yarn-unwound bobbins removed by the bobbin removing device are collected. The bobbin supplying device includes a box mounting member on which the collection box is mounted.
The above and other objects, features, advantages and the technical and industrial significance of this invention will be better understood by reading the following detailed description of presently preferred embodiments of the invention, when considered in connection with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic front-view of an automatic winder according to a first embodiment of the present invention;
FIG. 2 is a front cross-sectional view of a bobbin supplying device;
FIG. 3 is a perspective view of the bobbin supplying device;
FIG. 4 is a perspective view of collection boxes (a first collection box and a second collection box);
FIG. 5A is a plan view of the first collection box;
FIG. 5B is a side view of the first collection box;
FIG. 6 is a cross-sectional view taken along a line 6-6 shown in FIG. 5B;
FIG. 7A is a cross-sectional view showing a state in which a yarn-unwound bobbin is collected in the first collection box;
FIG. 7B is a plan view showing a state in which yarn-unwound bobbins are collected in the first collection box;
FIG. 8A is a cross-sectional view showing a state in which yarn-unwound bobbins are collected in the first collection box;
FIG. 8B is a plan view showing a state in which yarn-unwound bobbins are collected in the first collection box;
FIG. 9A is a cross-sectional view showing a state in which yarn-unwound bobbins are collected in the second collection box;
FIG. 9B is a plan view showing a state in which yarn-unwound bobbins are collected in the second collection box; and
FIG. 10 is a side view showing a cover of the first collection box in an open state.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Exemplary embodiments of the present invention are explained in detail below with reference to the accompanying drawings.
An automatic winder 100 according to a first embodiment of the present invention is explained with reference to FIGS. 1 to 10. The automatic winder 100 is, for example, a bobbin-tray type automatic winder.
First, an overview of the automatic winder 100 is explained As shown in FIG. 1, the automatic winder 100 mainly includes plural winding units 10, a bobbin transporting device 11, a bobbin supplying device 12, a bobbin removing device 13, and a collection box 40.
Yarn-wound bobbins YB around which a spun yarn by a spinning machine (not shown) has been wound are loaded in bulk into a container 8 and transported to the bobbin supplying device 12, and then introduced into the bobbin supplying device 12. The bobbin supplying device 12 isolates each from the pile of yarn-wound bobbins YB, and then mounts one yarn-wound bobbin YB onto a tray 22 of the bobbin transporting device 11. The bobbin transporting device 11 transports the yarn-wound bobbins YB to each of the winding units 10. Each winding unit 10 unwinds the yarn from the yarn-wound bobbin YB mounted onto the tray 22 to form a package.
An yarn-unwound bobbin B from which the yarn has been completely unwound by the winding unit 10 is discharged from the winding unit 10 by being transported on the trays 22 of the bobbin transporting device 11. The bobbin removing device 13 picks up the yarn-unwound bobbins B from the trays 22 of the bobbin transporting device 11 to collect the picked-up yarn-unwound bobbins B. A new yarn-wound bobbin YB is loaded onto the now free tray 22 by the bobbin supplying device 12 on a downstream side. Bobbins that have very short residual yarn wound thereon are also discharged from the winding units 10 and collected by the bobbin removing device 13. Thus, the yarn-unwound bobbins B include not only completely yarn-unwound bobbins but also those short residual-yarn-wound bobbins.
The devices included in the automatic winder 100 are explained in detail below with reference to FIGS. 1 to 3.
Each of the winding units 10 arranged side by side unwinds the yarn that has been wound on the yarn-wound bobbin YB mounted onto the tray 22, and winds the yarn back on a winding bobbin to form a package.
The bobbin transporting device 11 automatically supplies the yarn-wound bobbin YB to each of the winding units 10 and collects the yarn-unwound bobbin B from each of the winding units 10. The bobbin transporting device 11 includes a bobbin transport path 21 and a plurality of the trays 22. The trays 22 are transported over the bobbin transport path 21 by a conveyor, or such like. The yarn-wound bobbin YB or the yarn-unwound bobbin B is mounted onto each of the numerous trays 22 transported over the bobbin transport path 21.
The bobbin supplying device 12 supplies the yarn-wound bobbin YB to, from among the trays 22 being transported, a tray 22 with no yarn-wound bobbin YB thereon. The bobbin supplying device 12 includes a bobbin introduction section 23, an isolating section 24, a tray placement section 25, and a bobbin moving section 26.
The bobbin introduction section 23 is a section where the pile of yarn-wound bobbins YB transported in the container 8 is introduced.
The isolating section 24 isolates the yarn-wound bobbins YB from the pile introduced into the bobbin introduction section 23 while elevating them. The isolating section 24 includes an endless belt 27, and a plurality of bobbin bearing members 28. The endless belt 27 is arranged in a vertical direction and forms a conveyor. The bobbin bearing members 28 are attached to the endless belt 27.
The bobbin bearing member 28 has a surface to load the yarn-wound bobbin YB thereon. Only one yarn-wound bobbin YB can be loaded on this surface. Once transported to the bottom of the isolating section 24, the yarn-wound bobbins YB are loaded one on each bobbin bearing member 28 by the circular driving of the endless belt 27, and transported upward. In this manner, the yarn-wound bobbins YB are picked up one by one from the bobbin introduction section 23 and isolated.
The tray placement section 25 receives the yarn-wound bobbin YB transported upward by the isolating section 24, makes a distinction of an unwinding end (small-diameter end of a tapered bobbin tube in an axial direction) of the yarn-wound bobbin YB and a supporting end (large-diameter end of the tapered bobbin tube in the axial direction), rotates the yarn-wound bobbin YB so that the supporting end (large-diameter end of the taper-shaped bobbin tube in the axial direction) faces downward, and mounts the yarn-wound bobbin YB onto the tray 22 of the bobbin transporting device 11. A tray 22 is waiting below the tray placement section 25 to receive the yarn-wound bobbin YB. Such tray placement sections are known in the art; for example, one is disclosed in Japanese Patent Application Laid-open No. H8-169525 .
The bobbin moving section 26 is arranged between the bobbin introduction section 23 and the isolating section 24. The bobbin moving section 26 moves the pile of yarn-wound bobbins YB from the bobbin introduction section 23 to the isolating section 24. The bobbin moving section 26 includes a swinging and transporting section 29. The swinging and transporting section 29 swings to transport to the isolating section 24 a predetermined quantity of yarn-wound bobbins YB from among the pile of yarn-wound bobbins YB introduced into the bobbin introduction section 23. The swinging and transporting section 29 is driven to swing between a position at which it tilts towards the isolating section 24 (the state shown in FIG. 2) or a position at which it tilts in the opposite direction, that is, towards the bobbin introduction section 23.
At the position of being tilted toward the isolating section 24, the swinging and transporting section 29 holds the yarn-wound bobbins YB in the bobbin introduction section 23 back from rushing toward the isolating section 24. To transport the yarn-wound bobbins YB from the bobbin introduction section 23 to the isolating section 24, the swinging and transporting section 29 first swings to the position at which it is tilted towards the bobbin introduction section 23. Consequently, the yarn-wound bobbins YB that have been held back are loaded on the top surface of the swinging and transporting section 29. Thereafter, the swinging and transporting section 29 is caused to swing again and tilt towards the isolating section 24. Because the swinging and transporting section 29 swings with a certain quantity of the yarn-wound bobbins YB mounted thereon, only the yarn-wound bobbins YB loaded on the swinging and transporting section 29 are introduced into the isolating section 24. Consequently, by the swinging of the swinging and transporting section 29, only a predetermined quantity of the yarn-wound bobbins YB can be transported from among the pile of yarn-wound bobbins YB in the bobbin introduction section 23 to the isolating section 24.
The bobbin removing device 13 removes the yarn-unwound bobbins B from the trays 22 on which the yarn-unwound bobbins B discharged from the winding unit 10 are loaded from among the trays 22 that are transported by the bobbin transporting device 11. The bobbin removing device 13 includes a frame 31, a belt member 32, a removing lever 33, a residual-yarn-wound bobbin chute 35, a yarn-unwound-bobbin chute 36, and a residual yarn detection sensor (not shown). Bobbins with a very small amount of yarn left thereon (residual-yarn-wound bobbins) are mixed among the yarn-unwound bobbins B discharged from the winding units 10.
The frame 31 forms the base of the bobbin removing device 13. The belt member 32 transports the yarn-unwound bobbins B. The belt member 32 is an endless belt arranged in the vertical direction. The removing lever 33 is an arm that is swingably attached to the frame 31. A picking pulley 34 is arranged on the free end of the removing lever 33. The removing lever 33 moves the yarn-unwound bobbin B towards the belt member 32 with the picking pulley 34 brought in contact with the yarn-unwound bobbin B mounted on the tray 22 in the bobbin transport path 21, pulls up the yarn-unwound bobbin B from the tray 22, and sends the yarn-unwound bobbin B to the belt member 32.
The residual yarn detection sensor (not shown) detects the residual-yarn-wound bobbin from among the yarn-unwound bobbins B that are transported upward along the belt member 32. The residual yarn detection sensor is arranged at a point along the transport path of the belt member 32. The residual-yarn-wound bobbin chute 35 and the yarn-unwound-bobbin chute 36 are arranged above the transport path of the belt member 32 for the yarn-unwound bobbins B.
Those yarn-unwound bobbins B detected by the residual yarn detection sensor to have residual yarn thereon are discharged through the residual-yarn-wound bobbin chute 35. The residual-yarn-wound bobbin chute 35 has a tilt, which causes the yarn-unwound bobbins B with residual yarn thereon to slide and be introduced into a collection box (not shown) for yarn-unwound bobbins B with residual yarn thereon.
The yarn-unwound bobbins B with no residual yarn are discharged through the yarn-unwound-bobbin chute 36. The yarn-unwound-bobbin chute 36 also has a tilt, which causes the yarn-unwound bobbins B with no residual yarn to slide and be introduced into the collection box 40. The bobbin removing device 13 removes the yarn-unwound bobbin B from the tray 22 with the unwinding end (top side) thereof on top. Consequently, the yarn-unwound bobbin B with no residual yarn is introduced through the yarn-unwound-bobbin chute 36 into the collection box 40 in the same orientation with its unwinding end (top side) first.
The yarn-unwound-bobbin chute 36 extends from the bobbin removing device 13 towards the collection box 40. In the present embodiment, two collection boxes 40 are arranged. Consequently, the fore-end of the yarn-unwound-bobbin chute 36 is wide enough to allow the yarn-unwound bobbins B to be introduced into both the collection boxes 40.
A separator 37 is arranged near the fore-end of the yarn-unwound-bobbin chute 36. The separator 37 switches guidance directions of the yarn-unwound bobbin B, thereby switching the collection box 40 to serve as an introduction destination of the yarn-unwound bobbin B between the two collection boxes 40. A driving source 38 (shown in Fig. 7A, 8A and 9A) drives the separator 37 to perform this switching action.
In the present embodiment, the collection boxes 40 are arranged side by side on a box mounting member 43 that is arranged on top of the bobbin moving section 26. The box mounting member 43 is a member on which the collection boxes 40 are mounted. In the present embodiment, the box mounting member 43 is arranged above and across the swinging and transporting section 29 of the bobbin moving section 26.
A structure of the collection box 40 is explained in detail below with reference to FIGS. 4 to 10. As shown in FIG. 4, in the present embodiment, two collection boxes 40 are arranged side by side. In the following description, for the sake of convenience, one collection box 40 will be referred to as a first collection box 41, and the other collection box 40 will be referred to as a second collection box 42. The first collection box 41 and the second collection box 42 are symmetrical. The following explanation is mainly of the first collection box 41.
The side where the yarn-unwound bobbin B is introduced through the yarn-unwound-bobbin chute 36 will be referred to, for the sake of convenience, as a yarn-unwound bobbin introduction side of the collection box 40.
A structure of the first collection box 41 is explained below. As shown in FIGS. 4, 5A and 5B, the first collection box 41 includes a box body 51, a cover 61, a receptacle 81, and a supporting unit 91.
The box body 51 houses the yarn-unwound bobbins B. The box body 51 has an open top. The side walls of the box body 51 are substantially rectangular in shape in a horizontal cross-section. The box body 51 includes a removal assisting member 52 and a detecting section 53.
A pair of opposing first side walls 54 forms the side walls of the short side of the box body 51. A pair of opposing second side walls 55 forms the side walls of the long side. The width of the first side walls 54 (length of the short side) is set shorter than the length of the yarn-unwound bobbin B. The width of the second side walls 55 (length of the long side) is set longer than the length of the yarn-unwound bobbin B.
Inside the box body 51, a first inner wall panel 56 is arranged parallel to the first side walls 54. The first inner wall panel 56 forms a housing 57 between itself and the first side wall 54 on the yarn-unwound bobbin introduction side for housing the yarn-unwound bobbins B. The first inner wall panel 56 is arranged on the side opposite to the yarn-unwound bobbin introduction side. To prevent the yarn-unwound bobbin B from rotating inside the housing 57 leading to a change in the bobbin tube large/small-end orientation, the position of the first inner wall panel 56 is set such that the length of the long side of the housing 57 is the same as the length of the yarn-unwound bobbin B or slightly longer.
The removal assisting member 52 facilitates the operator to put his hands in and lift up the yarn-unwound bobbins B from the first collection box 41. The removal assisting member 52 is provided on the second side wall 55, which is the long-side side wall of the box body 51. The removal assisting member 52 is a notch with an open top and a width that is shorter than the length of the yarn-unwound bobbin B. Because the removal assisting member 52 is provided on the second side wall 55, the operator can grab the pile of yarn-unwound bobbins B by inserting his hands from the side of the pile.
The detecting section 53 detects a position of the top surface of each yarn-unwound bobbin B housed in the housing 57. In the present embodiment, a photoelectric sensor, which includes a light emitting element and a light receiving element, is used as the detecting section 53. The detecting section 53 is arranged on the second side walls 55 of the box body 51. The light emitting element and the light receiving element of the detecting section 53 are respectively fixed outside of the box body 51, in through holes formed on opposing positions on the two second side walls 55.
When the yarn-unwound bobbins B are collected in and eventually fill the housing 57 to capacity, the top surfaces of the yarn-unwound bobbins B block the light emitted by the light emitting element of the detecting section 53, and blocking of the light is detected by the light receiving element of the detecting section 53. The detecting section 53 sends a detection signal to a controller (not shown) arranged in the automatic winder 100. Upon receiving the detection signal from the detecting section 53, the controller activates an alarm section, such as a lamp, to indicate to the operator that a quantity of the yarn-unwound bobbins B has reached a predetermined value. Also, upon receiving the detection signal from the detecting section 53, the controller operates the driving source 38 of the separator 37 to switch the guidance direction of the yarn-unwound bobbins B, thereby switching the destination collection box of the yarn-unwound bobbins B between the first collection box 41 and the second collection box 42.
The cover 61 guides the yarn-unwound bobbins B that are introduced through the yarn-unwound-bobbin chute 36 into the housing 57 of the box body 51, and facilitates removal of the collected yarn-unwound bobbins B from the housing 57. The cover 61 includes a cover body 63, an opening 67, a regulating member 71, and a blocking member 75.
The cover body 63 is supported pivotably by a shaft 76 relative to the box body 51. The cover body 63 can open and close relative to the box body 51. The shaft 76 is arranged on the side opposite to the yarn-unwound bobbin introduction side. The cover body 63 includes a first lateral regulating panel 64, second lateral regulating panels 65, and a top panel 66. The first lateral regulating panel 64 is the side wall on the short side of the cover body 63. The first lateral regulating panel 64 is provided only on the side opposite to the yarn-unwound bobbin introduction side (that is, on the shaft 76 side). The width of the first lateral regulating panel 64 is substantially the same as the width of the first side wall 54 of the box body 51.
The second lateral regulating panels 65 prevent the yarn-unwound bobbins B being introduced from bouncing off. The second lateral regulating panels 65 are the side walls on the long side of the cover body 63, and the width thereof (length of the long side) is set shorter than the width of the second side wall 55 (length of the long side) of the box body 51. This is so set in the present embodiment to prevent an interference between the yarn-unwound bobbins B being introduced and the second lateral regulating panel 65 when the yarn-unwound bobbins B are introduced into the first collection box 41 through the yarn-unwound-bobbin chute 36 in a slightly oblique direction with respect to the first collection box 41 (refer to FIG. 7B).
The top panel 66 is the upper portion of the cover body 63. The top panel 66 extends across the upper portions of the first lateral regulating panel 64 and the second lateral regulating panels 65.
The opening 67 is formed above the housing 57, through which the yarn-unwound bobbins B are introduced. The opening 67 is provided on the yarn-unwound bobbin introduction side to facilitate the introduction of the yarn-unwound bobbins B through the yarn-unwound-bobbin chute 36. The opening 67 is defined by the first side walls 54 of the box body 51 and the second lateral regulating panels 65 and the top panel 66 of the cover body 63.
As shown in FIGS. 4 to 6, the regulating member 71 is arranged between the opening 67 and the housing 57. The regulating member 71 guides the yarn-unwound bobbins B being introduced into the opening 67 into the housing 57 while maintaining a uniform bobbin tube large/small-end orientation thereof. The regulating member 71 is fixed to the inside of the cover body 63 by a bolt. The regulating member 71 includes a first internal regulating panel 72, a second internal regulating panel 73, and a slanting panel 74.
The first internal regulating panel 72 guides the yarn-unwound bobbins B being introduced into the opening 67 to one of the openings 67 while maintaining a uniform bobbin tube large/small-end orientation thereof. The first internal regulating panel 72 juts into the opening 67 so as to be able to definitively guide the yarn-unwound bobbins B being introduced through the yarn-unwound-bobbin chute 36. The second internal regulating panel 73 is arranged on an edge of the first internal regulating panel 72 that is on the side opposite to the yarn-unwound bobbin introduction side.
The slanting panel 74 guides the yarn-unwound bobbins B being introduced into the opening 67 into the housing 57 while maintaining a uniform bobbin tube large/small-end orientation thereof. The slanting panel 74 is arranged contiguously with the first internal regulating panel 72, with the slant oriented to facilitate the yarn-unwound bobbins B to roll toward the second lateral regulating panel 65 of the cover body 63. The slanting panel 74 is arranged such that a slit-shaped (rectangular) opening is formed between the free edge of the slanting panel 74 and the second lateral regulating panel 65 of the cover body 63. This slit-shaped (rectangular) opening functions as a passage opening 77. That is, the slanting panel 74 forms the passage opening 77 and also guides the introduced yarn-unwound bobbins B into the passage opening 77.
As shown in FIGS. 5A, 5B, and 6, if W is a width of a short side and L is a length of a long side of the passage opening 77, the width W of the short side is shorter than the length of the yarn-unwound bobbin B, and the length L of the long side is longer than the length of the yarn-unwound bobbin B. The yarn-unwound bobbins B that pass through the passage opening 77 are guided into and housed in the housing 57 with uniform bobbin tube large/small-end orientation. By adjusting the position where the regulating member 71 is fixed to the cover body 63, the width W of the short side of the passage opening 77 can be adjusted to suit the type of the yarn-unwound bobbin B.
Furthermore, in the present embodiment, the long side of the passage opening 77 is oriented along the long side of the first collection box 41. The long side of the first collection box 41 is substantially oriented along an introduction direction (bobbin tube large/small-end orientation) of the yarn-unwound bobbin B. That is, the first collection box 41 is oriented so that the long side of the passage opening 77 is oriented substantially along the introduction direction of the yarn-unwound bobbin B. Consequently, the yarn-unwound bobbin B being introduced with the top side first is guided to the passage opening 77 by the regulating member 71 without changing the bobbin tube large/small-end orientation. The yarn-unwound bobbins B that pass through the passage opening 77 are guided into and housed in the housing 57 while maintaining the bobbin tube large/small-end orientation from the time of introduction.
The blocking member 75 covers the removal assisting member 52 when the cover 61 is closed over the box body 51. The blocking member 75 extends from a lower edge of the second lateral regulating panel 65. To make the blocking member 75 fit into the notch of the removal assisting member 52 when the cover 61 is closed over the box body 51, the shapes of the removal assisting member 52 and the blocking member 75 are designed so that they do not butt into each other when the cover 61 is opened or closed relative to the box body 51 (refer to FIG. 10).
The receptacle 81 is arranged inside the housing 57 so as to be movable upward and downward. The collected yarn-unwound bobbins B are loaded in the receptacle 81. The receptacle 81 includes a receptacle body 82, arm members 83, and a base 84.
The receptacle body 82 is a member in which the collected yarn-unwound bobbins B are loaded. The receptacle body 82 is tilted, with the yarn-unwound bobbin introduction side being lower and the opposite side being higher. This arrangement is made so that the top surface of the taper-shaped yarn-unwound bobbins B is substantially horizontal when yarn-unwound bobbins B fill the housing 57 to capacity. Without a tilt of the receptacle body 82, the bottom-end of the taper-shaped yarn-unwound bobbins B, which have been introduced with the top-end thereof first, would be at a higher level as the top of the bobbins that are collected in the receptacle body 82.
The two arm members 83 are attached to the receptacle body 82. The two arm members 83 are attached on the yarn-unwound bobbin introduction side of the receptacle body 82 at the two ends of the short side. Two parallel slits 85 are formed in a first side wall 54 of the box body 51 and a later-explained frame 92 of the supporting unit 91. The two arm members 83 of the receptacle 81 penetrate through these respective slits 85. On the side opposite to the receptacle body 82, the base 84 is attached to the two arm members 83. With this structure, the receptacle 81 can be moved upward and downward inside the housing 57.
As shown in FIGS. 4, 5A, and 5B, the supporting unit 91 is a mechanism that lowers the receptacle 81 when the quantity of the yarn-unwound bobbins B loaded in the receptacle 81 increases, and raises the receptacle 81 when the quantity of the yarn-unwound bobbins B loaded in the receptacle 81 decreases.
The receptacle 81 is supported by the supporting unit 91 in the above-explained manner because, if the receptacle 81 is fixed to the bottom of the collection box 40, a dropping height of the yarn-unwound bobbins B from the opening 67 to the bottom of the collection box 40 increases when the collection box 40 has only a small quantity of yarn-unwound bobbins B collected therein. If the dropping height is large, the yarn-unwound bobbins B may disadvantageously rotate and change their bobbin tube large/small-end orientation. Consequently, the receptacle 81 is supported by the supporting unit 91 to be moved to a position nearer to the upper portion of the housing 57 when the quantity of the yarn-unwound bobbins B collected is small and to a position nearer to the lower part of the housing 57 as the quantity of the yarn-unwound bobbins B collected therein increases.
A structure of the supporting unit 91 is explained below. The supporting unit 91 includes the frame 92, a guiding member 93, and an urging member 94. The frame 92 serves as the main body of the supporting unit 91 and is attached to the box body 51. The frame 92 is common to both the first collection box 41 and the second collection box 42. As explained above, the two parallel slits 85 are formed in the first side wall 54 of the box body 51 and the frame 92.
The guiding member 93 holds the position of the receptacle 81 when it is moved upward and downward. The guiding member 93 includes a sliding member 95 and a guide shaft 96. The sliding member 95 is fixed to the base 84 of the receptacle 81. The sliding member 95 has a through hole in a vertical direction; the base 84 similarly has a through hole. The guide shaft 96 is inserted into the through holes of both the sliding member 95 and the base 84 so that the sliding member 95 and the base 84 can slide along the guide shaft 96. The upper and lower ends of the guide shaft 96 are fixed to the frame 92. With this structure, the receptacle 81 is capable of moving upward and downward along the guide shaft 96.
The urging member 94 urges the receptacle 81 upward. In the present embodiment, a spring is used as the urging member 94. The spring constant of the spring that functions as the urging member 94 is set so that the receptacle 81 is lowered when the quantity of the yarn-unwound bobbins B collected therein increases and raised when the quantity of the yarn-unwound bobbins B collected therein decreases. Specifically, the spring constant is set so that, when the quantity of the yarn-unwound bobbins B being introduced increases, the top surfaces of the yarn-unwound bobbins B loaded in the receptacle 81 stay at a substantially even height. In the present embodiment, the top surfaces of the yarn-unwound bobbins B loaded in the receptacle 81 are maintained at a substantially even height that is slightly below the later-explained detecting section 53. Furthermore, when the operator removes the yarn-unwound bobbins B from the first collection box 41, the top surfaces of the yarn-unwound bobbins B loaded in the receptacle 81 are raised for a height that is equivalent to the quantity of the yarn-unwound bobbins B that have been removed, to facilitate the operator in removing the next lot of the yarn-unwound bobbins B.
The structure of the automatic winder 100 had beenis explained so far. How the yarn-unwound bobbins B are collected in the first collection box 41 is now explained with reference to FIGS. 7A to 10.
FIGS. 7A and 7B are drawings showing a state when the introduction of the yarn-unwound bobbins B into the first collection box 41 has just begun. As shown in FIG. 7B, the separator 37 of the yarn-unwound-bobbin chute 36 is switched to a position such that the yarn-unwound bobbins B are guided towards the first collection box 41.
FIGS. 8A and 8B are drawings showing a state where the quantity of the yarn-unwound bobbins B introduced into and collected in the housing 57 has increased. As the quantity of the yarn-unwound bobbins B collected in the housing 57 increases, the receptacle 81 is lowered to maintain the top surfaces of the yarn-unwound bobbins B at an even height. In the present embodiment, the top surfaces of the yarn-unwound bobbins B are maintained at a substantially even height that is slightly below the detecting section 53.
FIGS. 9A and 9B are drawings showing a state when the yarn-unwound bobbins B have been collected in the housing 57 to capacity. In this state, the top surfaces of the yarn-unwound bobbins B block the light emitted by the light emitting element of the detecting section 53. The light receiving element detects the absence of the light, and sends the detection signal to the controller (not shown) arranged in the automatic winder 100. Upon receiving the detection signal from the detecting section 53, the controller activates the alarm section, such as a lamp, to indicate to the operator that the quantity of the collected yarn-unwound bobbins B has reached a predetermined value. Moreover, upon receiving the detection signal from the detecting section 53, the controller operates the driving source 38 of the separator 37 to switch the guidance direction of the yarn-unwound bobbins B, and thereby switch the introduction destination of the yarn-unwound bobbins B from the first collection box 41 to the second collection box 42 (refer to FIG. 9B).
FIG. 10 is a drawing showing the cover 61 in an open state so that the operator can remove the yarn-unwound bobbins B from the first collection box 41. When the cover 61 is opened, the removal assisting member 52 heretofore hidden by the blocking member 75 is exposed. The operator can put his hands in through the removal assisting member 52 and lift up the yarn-unwound bobbins B. Once the operator removes some of the yarn-unwound bobbins B, the receptacle 81 is raised for a height equivalent to the quantity of the yarn-unwound bobbins B removed, and thereby the upper surfaces of the yarn-unwound bobbins B loaded in the receptacle 81 are raised.
The above-explained automatic winder 100 according to the present embodiment has the following advantages.
The bobbin supplying device 12 includes the box mounting member 43 for mounting the collection boxes 40. Therefore, there is no need to procure space for mounting the collection boxes 40 separately from where the bobbin supplying device 12 is located. Consequently, a compact automatic winder 100 can be realized leading to space-saving. Furthermore, the tasks of supplying the yarn-wound bobbins YB from the pile to the bobbin supplying device 12 and removing the yarn-unwound bobbins B from the collection boxes 40 is performed at locations that are not far apart from each other. Consequently, the distance, which the operator has to move to perform these tasks is shortened.
The box mounting member 43 is arranged stacked above a portion of the bobbin supplying device 12. Therefore, space is efficiently utilized in a height direction (vertical direction), and space is saved in a width direction (horizontal direction) of the automatic winder 100.
In the bobbin supplying device 12, the box mounting member 43 is arranged on top of the bobbin moving section 26 that seldom needs to be reached from above. Consequently, space is efficiently utilized in the height direction (vertical direction), and space is saved in the width direction (horizontal direction) of the automatic winder 100.
The box mounting member 43 is arranged above the swinging and transporting section 29 of the bobbin moving section 26. The swinging and transporting section 29 transports the yarn-wound bobbin YB by swinging and therefore causes no major vibrations or jolts. Consequently, even if the collection box 40 is arranged on the bobbin moving section 26, the collection box 40 is unaffected by the bobbin moving section 26. Furthermore, the swinging and transporting section 29 transports only a predetermined quantity of the yarn-wound bobbins YB. Consequently, the yarn-wound bobbins YB do not spill over and adversely affect the box mounting member 43 and the collection boxes 40.
The isolating section 24 isolates each bobbin from the pile of the yarn-wound bobbins YB while elevating them. Thus, space is saved in the bobbin supplying device 12 in the horizontal direction, and thereby, overall space-saving can be achieved.
The bobbin removing device 13 adopts a mechanism by which the yarn-unwound bobbins B are pulled upward, caused to slide down the tilted yarn-unwound-bobbin chute 36, and introduced into the collection box 40 with uniform bobbin tube large/small-end orientation. The collection box 40 is arranged between the opening 67 and the housing 57, and includes the regulating member 71 that maintains a uniform bobbin tube large/small-end orientation of the yarn-unwound bobbins B being introduced into the opening 67 and guides the yarn-unwound bobbins B into the housing 57. Consequently, the uniform bobbin tube large/small-end orientation at the time of introduction of the yarn-unwound bobbins B is not disturbed. Therefore, the task of aligning the yarn-unwound bobbins B in the bobbin tube large/small-end orientation, which is required in the conventional technologies before returning the yarn-unwound bobbins B to the spinning machine, is no longer necessary.
The regulating member 71 maintains a uniform bobbin tube large/small-end orientation of the yarn-unwound bobbins B by passing the yarn-unwound bobbins B through the passage opening 77 that has a short side that is shorter than the length of the yarn-unwound bobbin B and a long side that is longer than the length of the yarn-unwound bobbin B. Consequently, the yarn-unwound bobbins B being introduced into the opening 67 are guided into the housing 57 while reliably maintaining a uniform bobbin tube large/small-end orientation thereof.
The collection box 40 is oriented so that the long side of the passage opening 77 is oriented along the introduction direction of the yarn-unwound bobbins B. Consequently, the yarn-unwound bobbins B being introduced with uniform bobbin tube large/small-end orientation easily pass through the passage opening 77 without changing their orientation, and are swiftly housed in the collection box 40.
The cover 61 includes the opening 67 and the regulating member 71. The regulating member 71 forms the passage opening 77 between itself and the inner wall of the cover 61, and includes the slanting panel 74 that guides the introduced yarn-unwound bobbins B into the passage opening 77. Consequently, by opening the cover 61, the regulating member 71 can also be moved, thereby making it easy for the operator to remove the yarn-unwound bobbins B housed in the housing 57 of the box body 51.
The housing 57 has the removal assisting member 52, which is a notch with an open top and a width that is shorter than the length of the yarn-unwound bobbin B. This allows the operator, when removing the yarn-unwound bobbins B from the collection box 40, to access the yarn-unwound bobbins B from the side of the housing 57 by inserting his hands in through the removal assisting member 52 and lifting up the yarn-unwound bobbins B. The yarn-unwound bobbins B can be removed more efficiently in this manner than when removing them from above the housing 57. With the cover 61, which includes the blocking member 75 that covers the removal assisting member 52, the yarn-unwound bobbins B are prevented from falling out through the removal assisting member 52 when the cover 61 is closed.
The receptacle 81 in which the collected yarn-unwound bobbins B are loaded is lowered when the quantity of the yarn-unwound bobbins B collected therein increases, and raised when the quantity of the yarn-unwound bobbins B collected therein decreases. Consequently, even if the quantity of the yarn-unwound bobbins B collected is small, the dropping height of the yarn-unwound bobbins B being introduced through the opening 67 can be reduced, thereby preventing the yarn-unwound bobbins B from rotating inside the collection box 40 leading to a change in the bobbin tube large/small-end orientation. Furthermore, even if the quantity of the yarn-unwound bobbins B loaded in the receptacle 81 decreases as the operator removes the yarn-unwound bobbins B from the collection box 40, the operator can still easily remove the yarn-unwound bobbins B because the receptacle 81 is raised as the quantity of the yarn-unwound bobbins B in the receptacle 81 decreases.
The collection box 40 includes the detecting section 53 that detects whether a predetermined quantity of the yarn-unwound bobbins B has been collected. The alarm section functions upon receiving the detection signal from the detecting section 53. Consequently, the operator comes to know that a predetermined quantity of the yarn-unwound bobbins B has been collected in the collection box 40, and therefore can remove the yarn-unwound bobbins B from the collection box 40 at an appropriate time.
Upon receiving the detection signal from the detecting section 53 of the collection box 40, the separator 37 of the yarn-unwound-bobbin chute 36 switches the introduction destination of the yarn-unwound bobbins B among a plurality of the collection boxes 40 arranged side by side. Consequently, the yarn-unwound bobbins B are collected in a plurality of the collection boxes 40. Moreover, the yarn-unwound bobbins B can be removed from the collection box 40 in which a predetermined quantity of the yarn-unwound bobbins B has been collected even while the yarn-unwound bobbins B are being collected in another collection box 40. Consequently, the collection of the yarn-unwound bobbins B can be carried out without interruption.
Although the invention has been described with respect to specific embodiments, the present invention is not limited thereto, and various modifications can be made.
For example, a spring is used as the urging member 94 in the supporting unit 91. Instead, an actuator, such as an air cylinder, can be used. The actuator can be driven based on, for example, the detection signal of the detecting section 53, to lower the receptacle 81 as the quantity of the yarn-unwound bobbins B increases, and raise the receptacle 81 as the quantity of the yarn-unwound bobbins B decreases. The position of the receptacle 81 can be more accurately controlled with the actuator than with the spring.
An automatic winder according to an aspect of the present invention includes a bobbin transporting device, a bobbin supplying device, a winding unit, a bobbin removing device, and a collection box. The bobbin transporting device transports a plurality of trays. The bobbin supplying device supplies yarn-wound bobbins to empty trays that are being transported by the bobbin transporting device so that the bobbin transporting device transports yarn-wound bobbin mounted trays to the winding unit. The winding unit unwinds yarns from the yarn-wound bobbins mounted on the yarn-wound bobbin mounted trays being transported by the bobbin transporting device to form a package. The bobbin removing device removes yarn-unwound bobbins, which have become empty due to unwinding of yarn by the winding unit, from the trays that are being transported by the bobbin transporting device. In the collection box, the yarn-unwound bobbins removed by the bobbin removing device are collected. The bobbin supplying device includes a box mounting member on which the collection box is mounted.
According to another aspect of the present invention, the box mounting member is arranged on a portion of the bobbin supplying device.
According to still another aspect of the present invention, the box mounting member is arranged above a portion of the bobbin supplying device.
According to still another aspect of the present invention, the bobbin supplying device includes a bobbin introduction section, an isolating section, and a bobbin moving section. Into the bobbin introduction section, a plurality of yarn-wound bobbins is introduced. The isolating section isolates the yarn-wound bobbins. The bobbin moving section moves a pile of the yarn-wound bobbins from the bobbin introduction section to the bobbin isolating section. The box mounting member is arranged on top of the bobbin moving section.
According to still another aspect of the present invention, the bobbin moving section includes a swinging and transporting section. The swinging and transporting section swings to transport to the isolating section, a predetermined quantity of the yarn-wound bobbins from among the pile of yarn-wound bobbins introduced into the bobbin introduction section. The box mounting member is arranged above the swinging and transporting section.
According to still another aspect of the present invention, the isolating section isolates the pile of yarn-wound bobbins while elevating the pile of yarn-wound bobbins.
According to still another aspect of the present invention, the bobbin removing device removes the yarn-unwound bobbins upwardly, and introduces the yarn-unwound bobbins into the collection box with uniform bobbin tube large/small-end orientation. The collection box includes a box body, an opening, and a regulating member. The box body has a housing, an opening, and a regulating member. The housing houses the yarn-unwound bobbins being introduced. The opening is arranged above the housing. The regulating member is arranged between the opening and the housing and guides the yarn-unwound bobbins being introduced into the opening into the housing while maintaining the uniform bobbin tube large/small-end orientation thereof.
According to still another aspect of the present invention, the regulating member maintains the uniform bobbin tube large/small-end orientation of the yarn-unwound bobbins by causing the yarn-unwound bobbins to pass through a rectangular passage opening with a short side thereof shorter than a length of the yarn-unwound bobbin and a long side thereof longer than the length of the yarn-unwound bobbin.
According to still another aspect of the present invention, the collection box is oriented so that the long side of the passage opening is oriented along an introduction direction of the yarn-unwound bobbins being introduced.
According to still another aspect of the present invention, the automatic winder further includes a cover that is openable and closable relative to the box body. The cover includes the opening and the regulating member. The regulating member forms the passage opening between itself and an inner wall of the cover, and further includes a slanting panel that guides the introduced yarn-unwound bobbins into the passage opening.
According to still another aspect of the present invention, the housing has a removal assisting member. The removal assisting member is arranged on a side wall along the long side of the passage opening. The removal assisting member is a notch with an open top and a width that is shorter than the length of the yarn-unwound bobbin. The cover has a blocking member that covers the removal assisting member.
According to still another aspect of the present invention, the automatic winder further includes a receptacle and a supporting unit. The receptacle is movable upward and downward inside the housing, and the collected yarn-unwound bobbins are loaded in the receptacle. The supporting unit lowers the receptacle when the quantity of the yarn-unwound bobbins loaded in the receptacle increases, and raises the receptacle when the quantity of the yarn-unwound bobbins loaded in the receptacle decreases.
According to still another aspect of the present invention, the collection box includes a detecting section. The detecting section detects whether the quantity of the yarn-unwound bobbins collected in the collection box has reached a predetermined value. The collection box includes an alarm section that operates upon receiving a detection signal from the detecting section.
According to still another aspect of the present invention, the automatic winder further includes a plurality of the collection boxes, a detecting section, a yarn-unwound-bobbin chute and a separator. The collection boxes are arranged side by side. The detecting section is arranged in each of the collection boxes and detects whether the quantity of the yarn-unwound bobbins collected in the respective collection box has reached a predetermined value. The yarn-unwound-bobbin chute is arranged in the bobbin removing device. The separator is arranged in the yarn-unwound-bobbin chute and switches guidance directions of the yarn-unwound bobbins, and thereby switches introduction destinations of the yarn-unwound bobbins among the plurality of the collection boxes. The separator switches the introduction destinations of the yarn-unwound bobbins among the plurality of the collection boxes upon receiving a detection signal from the detecting section.
The advantages of the present invention are given below.
In the automatic winder according to the present invention, the bobbin supplying device includes the box mounting member for mounting the collection box. Therefore, there is no need to procure space for mounting the collection box at a location away from where the bobbin supplying device is located. Consequently, a compact automatic winder can be realized, achieving space-saving. Furthermore, the tasks of supplying the yarn-wound bobbins from the pile to the bobbin supplying device and removing the yarn-unwound bobbins from the collection box need not be performed at locations that are apart from each other. Consequently, the distance for which the operator has to move to perform these tasks is shortened.
It is preferable that the box mounting member is arranged on a portion of the bobbin supplying device. Accordingly, space can be efficiently used in a height direction (vertical direction), and space is saved in a width direction (horizontal direction) of the automatic winder.
It is preferable that the box mounting member is arranged above a portion of the bobbin supplying device. Accordingly, space can be efficiently used in the height direction (vertical direction), and space is saved in the width direction (horizontal direction) of the automatic winder.
It is preferable that the box mounting member is arranged on top of the bobbin moving section that seldom needs to be reached from above. Consequently, space can be efficiently used in the height direction (vertical direction), and space is saved in the width direction (horizontal direction) of the automatic winder.
It is preferable that the box mounting member is arranged above the swinging and transporting section of the bobbin moving section. The swinging and transporting section transports the yarn-wound bobbins by swinging and therefore causes no major vibrations or jolts. Consequently, even if the collection box is arranged on the bobbin moving section, the collection box is unaffected by the bobbin moving section. Furthermore, the swinging and transporting section transports only a predetermined quantity of the yarn-wound bobbins. Consequently, the yarn-wound bobbins do not spill over and adversely affect the box mounting member and the collection box.
It is preferable that the isolating section isolates the yarn-wound bobbins while elevating them. Accordingly, space can be saved in the bobbin supplying device in the horizontal direction, and thereby, overall space-saving can be achieved.
It is preferable that the bobbin removing device adopts a mechanism by which the yarn-unwound bobbins are pulled upward and introduced into the collection box with uniform bobbin tube large/small-end orientation. Furthermore, it is preferable that the collection box be arranged between the opening and the housing, and includes the regulating member that maintains the uniform bobbin tube large/small-end orientation of the yarn-unwound bobbins being introduced into the opening, and guides the yarn-unwound bobbins into the housing. Consequently, the uniform bobbin tube large/small-end orientation at the time of introduction of the yarn-unwound bobbins into the opening is not disturbed when the yarn-unwound bobbins are guided into the housing. Therefore, there is no need to perform the operation of aligning the bobbin tube large/small-end orientation before returning the yarn-unwound bobbins to the spinning machine.
It is preferable that the regulating member maintains the uniform bobbin tube large/small-end orientation of the yarn-unwound bobbins by causing the yarn-unwound bobbins to pass through the passage opening that has a short side that is shorter than the length of the yarn-unwound bobbin and a long side that is longer than the length of the bobbin. Consequently, the yarn-unwound bobbins being introduced into the opening are guided into the housing while reliably maintaining the uniform bobbin tube large/small-end orientation thereof.
It is preferable that the collection box is oriented so that the long side of the passage opening is oriented along the introduction direction of the yarn-unwound bobbins. Consequently, the yarn-unwound bobbins being introduced with uniform bobbin tube large/small-end orientation easily pass through the passage opening without changing their large/small-end orientation, and are swiftly housed in the collection box.
It is preferable that the cover includes the opening and the regulating member. The regulating member forms the passage opening between itself and the inner wall of the cover, and includes the slanting panel that guides the introduced yarn-unwound bobbins into the passage opening. Consequently, by opening the cover, the regulating member can also be moved, thereby making it easy for the operator to remove the yarn-unwound bobbins housed in the housing of the box body.
It is preferable that the housing is provided with the removal assisting member, which is a notch with an open top and a width that is shorter than the length of the yarn-unwound bobbin. This allows the operator, when removing the yarn-unwound bobbins from the collection box, to access the yarn-unwound bobbins from the side of the housing by inserting his hands in through the removal assisting member and lift up the yarn-unwound bobbins. The yarn-unwound bobbins can be removed more efficiently in this manner than when removing them from above the housing. Because the cover includes the blocking member that covers the removal assisting member, when the cover is in a closed state, the yarn-unwound bobbins are prevented from falling out through the removal assisting member.
It is preferable that the receptacle in which the collected yarn-unwound bobbins are loaded can be lowered when the quantity of the yarn-unwound bobbins collected therein increases and raised when the quantity of the yarn-unwound bobbins collected therein decreases. Consequently, even if the quantity of the yarn-unwound bobbins collected is small, the dropping height of the yarn-unwound bobbins being introduced through the opening can be reduced, thereby preventing the yarn-unwound bobbins from disadvantageously rotating inside the collection box and changing the bobbin tube large/small-end orientation. Furthermore, the receptacle is raised as the quantity of the yarn-unwound bobbins in the receptacle decreases. This allows the operator, even if the quantity of the yarn-unwound bobbins loaded in the receptacle decreases, to still easily remove the yarn-unwound bobbins from the collection box.
It is preferable that the collection box includes the detecting section that detects whether a predetermined quantity of the yarn-unwound bobbins has been collected. The alarm section operates upon receiving a detection signal from the detecting section. Consequently, the operator comes to know that a predetermined quantity of the yarn-unwound bobbins has been collected in the collection box, and therefore can remove the yarn-unwound bobbins from the collection box at an appropriate time.
It is preferable that a plurality of the collection boxes are arranged side by side. Upon receiving the detection signal from the detecting section of the collection boxes, the separator of the yarn-unwound-bobbin chute selects one of the collection boxes to serve as the introduction destination of the yarn-unwound bobbins. Consequently, the yarn-unwound bobbins can be collected depending on their types in separate collection boxes. The yarn-unwound bobbins can be removed from one collection box in which a predetermined quantity of the yarn-unwound bobbins is collected even while the yarn-unwound bobbins are being collected in another collection box. Consequently, the collection of the yarn-unwound bobbins can be carried out without interruption.
Although the invention has been described with respect to specific embodiments for a complete and clear disclosure, the appended claims are not to be thus limited but are to be construed as embodying all modifications and alternative constructions that may occur to one skilled in the art that fairly fall within the basic teaching of the claims.

Claims

An automatic winder(100) comprising:
a bobbin transporting device(11) that transports a plurality of trays(22);

a winding unit(10) that unwinds yarns from the yarn-wound bobbins(YB) mounted on the trays (22) being transported by the bobbin transporting device(11) to form a package;

a bobbin supplying device(12) that supplies yarn-wound bobbins(YB) to empty trays(22) that are being transported by the bobbin transporting device(11) so that the bobbin transporting device(11) transports yarn-wound bobbin(YB) mounted trays (22) to the winding unit(10);

characterized by

a bobbin removing device(13) that removes yarn-unwound bobbins (B), which have become empty due to unwinding of yarn by the winding unit, from the trays that are being transported by the bobbin transporting device(11); and

a collection box into which the yarn-unwound bobbins(B) removed by the bobbin removing device(13) are collected,

wherein the bobbin supplying device(12) includes a box mounting member(43) on which the collection box is mounted.
The automatic winder(100) according to Claim 1, characterized in that the box mounting member(43) is arranged on a portion of the bobbin supplying device(12).
The automatic winder(100) according to Claim 1, characterized in that the box mounting member(43) is arranged above a portion of the bobbin supplying device(12).
The automatic winder(100) according to Claim 2 or 3, characterized in that
the bobbin supplying device(12) includes
a bobbin introduction section(23) into which a plurality of yarn-wound bobbins(YB) is introduced;
an isolating section(24) that isolates the yarn-wound bobbins(YB); and
a bobbin moving section that moves a pile of the yarn-wound bobbins(YB) from the bobbin introduction section(23) to the bobbin isolating section(24), and
the box mounting member(43) is arranged on top of the bobbin moving section(26).
The automatic winder(100) according to Claim 4, characterized in that
the bobbin moving section(26) includes a swinging and transporting section(29) that swings to transport to the isolating section(24), a predetermined quantity of the yarn-wound bobbins(YB) from among the pile of yarn-wound bobbins(YB) introduced into the bobbin introduction section(23), and
the box mounting member(43) is arranged above the swinging and transporting section(29).
The automatic winder(100) according to Claim 4 or 5, characterized in that the isolating section(24) isolates the pile of yarn-wound bobbins(YB) while elevating the pile of yarn-wound bobbins(YB).
The automatic winder(100) according to any one of Claims 1 to 6, characterized in that
the bobbin removing device(13) removes the yarn-unwound bobbins(B) upwardly, and introduces the yarn-unwound bobbins(B) into the collection box(40) with uniform bobbin tube large/small-end orientation, and
the collection box(40) includes
a box body(51) that has a housing(57) that houses the yarn-unwound bobbins(B) being introduced,
an opening(67) arranged above the housing(57), and
a regulating member(71) that is arranged between the opening(67) and the housing(57) and that guides the yarn-unwound bobbins (B) being introduced into the opening(67) into the housing(57) while maintaining the uniform bobbin tube large/small-end orientation thereof.
The automatic winder(100) according to Claim 7, characterized in that the regulating member(71) maintains the uniform bobbin tube large/small-end orientation of the yarn-unwound bobbins(B) by causing the yarn-unwound bobbins to pass through a rectangular passage opening(77) with a short side thereof shorter than a length of the yarn-unwound bobbin and a long side thereof longer than the length of the yarn-unwound bobbin(B).
The automatic winder(100) according to Claim 8, characterized in that the collection box(40) is oriented so that the long side of the passage opening(77) is oriented along an introduction direction of the yarn-unwound bobbins(B) being introduced.
The automatic winder according to Claim 8 or 9, further comprising a cover(61) that is openable and closable relative to the box body(51), characterized in that
the cover(61) includes the opening(67) and the regulating member(71), and
the regulating member(71) forms the passage opening(77) between itself and an inner wall of the cover(61), and further includes a slanting panel(74) that guides the introduced yarn-unwound bobbins(B) into the passage opening(77).
The automatic winder(100) according to Claim 10, characterized in that
the housing(57) has a removal assisting member(52) on a side wall(55) along the long side of the passage opening(77), the removal assisting member(52) being a notch with an open top and a width that is shorter than the length of the yarn-unwound bobbin(B), and
the cover(61) has a blocking member(75) that covers the removal assisting member(52).
The automatic winder(100) according to any one of Claims 7 to 11, characterized by:
a receptacle(81) that is movable upward and downward inside the housing(57), and in which the collected yarn-unwound bobbins(B) are loaded, and

a supporting unit(91) that lowers the receptacle when the quantity of the yarn-unwound bobbins(B) loaded in the receptacle(81) increases, and raises the receptacle(81) when the quantity of the yarn-unwound bobbins (B) loaded in the receptacle(81) decreases.
The automatic winder(100) according to any one of Claims 1 to 12, characterized in that
the collection box(40) includes
a detecting section(53) that detects whether the quantity of the yarn-unwound bobbins(B) collected in the collection box(40) has reached a predetermined value; and
an alarm section that operates upon receiving a detection signal from the detecting section (53).
The automatic winder(100) according to any one of Claims 1 to 12 characterized by:
a plurality of the collection boxes(41,42) arranged side by side;

a detecting section(53) that is arranged in each of the collection boxes(41,42) and that detects whether the quantity of the yarn-unwound bobbins (B) collected in the respective collection box(41,42) has reached a predetermined value;

a yarn-unwound-bobbin chute(36) arranged in the bobbin removing device(13); and

a separator(37) that is arranged in the yarn-unwound-bobbin chute(36) and that switches guidance directions of the yarn-unwound bobbins(B), and thereby switches introduction destinations of the yarn-unwound bobbins(B) among the plurality of the collection boxes(41,42),

wherein the separator(37) switches the introduction destinations of the yarn-unwound bobbins(B) among the plurality of the collection boxes(41,42) upon receiving a detection signal from the detecting section(53).