JP2024033763A - automatic winder - Google Patents

Abstract

The present invention provides an automatic winder having a structure capable of absorbing positional deviation of an intermediate frame and supporting the intermediate frame well. An automatic winder unwinds yarn from a yarn supply bobbin and winds it as a package. The automatic winder includes a yarn feeding frame 25, a yarn winding frame, a yarn splicing frame 76, and a main frame. The yarn feeding frame 25 is provided with a guide member that comes into contact with a balloon formed by the yarn immediately after being unwound from the yarn feeding bobbin. The thread winding frame is provided with a thread winding section that winds up the package. The yarn splicing frame 76 is provided between the yarn winding frame and the yarn feeding frame 25. The main frame supports each of the yarn winding frame, the yarn splicing frame 76, and the yarn feeding frame 25. The yarn splicing frame 76 and the yarn feeding frame 25 are arranged with an interval in the vertical direction and in contact with each other in the horizontal direction. [Selection diagram] Figure 7

Description

The present invention relates to an automatic winder.

2. Description of the Related Art Automatic winders that wind spun yarn to form packages have been known. Patent Document 1 discloses this type of automatic winder.

The automatic winder disclosed in Patent Document 1 is a modular automatic winder in which a yarn winding section and a yarn processing section are each attached to different positions on a main frame.

JP2019-34848A

In a modular automatic winder such as that disclosed in Patent Document 1, a mounting structure is desired that can absorb positional deviations due to mounting errors, dimensional errors, and deflection.

The present invention has been made in view of the above circumstances, and its purpose is to provide a structure in which one frame can be well supported by the other frame while absorbing vertical positional deviation between the two frames. An object of the present invention is to provide an automatic winder having the following features.

Means and effects for solving problems

The problem to be solved by the present invention is as described above, and next, the means for solving this problem and the effects thereof will be explained.

According to an aspect of the present invention, an automatic winder having the following configuration is provided. That is, this automatic winder unwinds yarn from a yarn supply bobbin and winds it up as a package. The automatic winder includes a lower frame, an upper frame, an intermediate frame, and a machine frame. The lower frame is provided with a guide member that contacts a balloon formed by the yarn immediately after being unwound from the yarn supply bobbin. The upper frame is provided with a thread winding section for winding up the package. The intermediate frame is provided between the upper frame and the lower frame. The machine frame supports each of the upper frame, the intermediate frame, and the lower frame. The intermediate frame and the lower frame are spaced apart from each other in the vertical direction and are in contact with each other in the horizontal direction.

As a result, vertical positional deviations due to installation errors of the intermediate frame or the lower frame can be absorbed by the gap between the two, and at the same time, the intermediate frame can be supported by the lower frame.

Further, the automatic winder preferably has the following configuration. That is, the intermediate frame is attached to the machine frame with its back surface as a reference. The lower frame is attached to the machine frame with its bottom surface as a reference.

If the attachment standards of the lower frame and the intermediate frame to the machine frame are different from each other, vertical positional deviation is likely to occur, but this positional deviation can be appropriately absorbed by the spacing between the two.

Further, the automatic winder preferably has the following configuration. That is, the intermediate frame has a concave first portion when viewed horizontally. The lower frame has a convex second portion when viewed horizontally. The second portion is arranged to fit into the first portion.

Thereby, when the intermediate frame is removed from the machine frame, movement of the intermediate frame can be restricted by the catch between the first portion and the second portion. Therefore, the stability of the intermediate frame can be ensured.

Moreover, in the automatic winder, it is preferable that the second portion is a rail member.

Thereby, when pulling out the intermediate frame, the intermediate frame can be suitably guided by the rail member.

Further, the automatic winder preferably has the following configuration. That is, the intermediate frame is removably fixed to the machine frame by a fixing member. When the fixing member is removed, the first portion of the intermediate frame removed from the machine frame comes into contact with the rail member in the vertical direction.

Thereby, the intermediate frame removed from the machine frame can be supported from below.

Further, in the automatic winder, it is preferable that the machine frame is provided with a positioning part for determining the position of the intermediate frame.

This allows the intermediate frame to be accurately attached to a predetermined position on the machine frame.

Further, in the automatic winder, when the intermediate frame is attached to the machine frame, it is preferable that the distance between the intermediate frame and the lower frame in the vertical direction is 4 mm or less.

As a result, it is possible to absorb the vertical positional deviation that occurs between the intermediate frame and the lower frame, and the automatic winder can be configured to be compact in the vertical direction. Since the falling stroke when the intermediate frame is removed from the machine frame is small, it is possible to reduce the impact applied to the thread splicing section and the like.

Further, the automatic winder preferably has the following configuration. That is, this automatic winder includes a plurality of automatic winder units arranged side by side. Each of the plurality of automatic winder units is provided with the lower frame provided with a magazine-type yarn feeding bobbin supply device. The magazine-type yarn feeding bobbin supply devices provided on the lower frames of adjacent automatic winder units are connected to each other.

Thereby, the strength of the magazine-type yarn feeding bobbin supplying device can be improved.

FIG. 1 is a perspective view showing the configuration of a main frame included in an automatic winder according to an embodiment of the present invention. FIG. 2 is a side view schematically showing an example of the configuration of a winding unit provided in an automatic winder. FIG. 7 is a side view schematically showing another example of the configuration of the winding unit. FIG. 3 is a partial perspective view showing a connection structure between magazine-type yarn feeding bobbin supply mechanisms. FIG. 3 is an exploded perspective view showing a configuration for attaching the yarn splicing frame to the main frame. FIG. 3 is a perspective view showing a fixing configuration of a rail member. FIG. 3 is a perspective view showing a configuration for attaching a yarn splicing frame to a rail member. The figure which shows the image in which a thread splicing frame slides along a rail member.

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the configuration of an automatic winder 1 according to an embodiment of the present invention.

The automatic winder 1 includes a main frame (machine frame) 2, a plurality of winding units (automatic winder units) 4, 4, . . . , and a machine control section (not shown). The winding units 4 are arranged in a line and are each attached to the main frame 2.

The winding units 4, 4, . . . are arranged side by side in the left-right direction when viewed from the front. Each winding unit 4 unwinds yarn from a yarn feeding bobbin 6 set in its yarn feeding exchange section 3 or a yarn feeding package (not shown). Each winding unit 4 winds up the unwound yarn. As a result, a package 9 is formed in each winding unit 4.

The machine control unit is arranged at one end of the main frame 2 in the direction in which the plurality of winding units 4, 4, . . . are lined up (the left-right direction shown in FIG. 1). The machine control section centrally controls the winding units 4, 4, . . . by communicating with a unit controller 90 provided in each winding unit 4. The operator can manage the plurality of winding units 4 at once by inputting appropriate instructions to the machine control section.

Next, the configuration of the main frame 2 will be explained in more detail with reference to FIG. The main frame 2 forms the skeleton of the automatic winder 1. The main frame 2 includes a side plate portion 11, a bottom plate portion 12, a blower duct 13, a support shaft 14, and a receiving plate 15.

The side plate portion 11 is a plate-shaped member that is long in the vertical direction. The side plate portions 11 are provided as a pair of left and right sides with their thickness directions oriented in the left and right horizontal directions. The left and right side plates 11 are arranged to face each other with an interval necessary for arranging the plurality of winding units 4, 4, . . . side by side. The bottom plate portion 12 is a horizontal plate-shaped member that is long in the left-right direction. The bottom plate part 12 is provided so as to horizontally connect the lower end of the left side plate part 11 and the lower end of the right side plate part 11.

The blower duct 13 is a hollow member. The blower duct 13 is spanned between the left and right side plate parts 11. An opening 13a is formed on the front side of the blower duct 13 so as to correspond to each winding unit 4. The blower duct 13 can distribute suction flow generated by rotation of a fan (not shown) to each of the winding units 4 . Each opening 13a is connected to a member of the configuration of each winding unit 4 that generates a suction flow via piping or the like.

The receiving plate 15 is provided above the blower duct 13. The receiving plate 15 is formed in a horizontal plate shape long in the left-right direction, and spans between the left and right side plate parts 11. The receiving plate 15 is arranged parallel to the upper surface of the blower duct 13. The receiving plate 15 faces the upper surface of the blower duct 13 with a slight distance in the vertical direction from the upper surface of the blower duct 13 .

The support shaft 14 is a shaft-shaped member that is long in the left-right direction. The support shaft 14 is arranged below the front end surface of the blower duct 13. The cross section of the support shaft 14 taken along a plane perpendicular to the axis is circular. The support shaft 14 is horizontally spanned between the left and right side plate parts 11.

Next, the configuration of the winding unit 4 will be described in more detail with reference to FIGS. 2 and 3. FIG. 2 is a side view schematically showing an example of the configuration of the winding unit 4 of the automatic winder 1. FIG. 3 is a side view schematically showing another example of the configuration of the winding unit 4. As shown in FIG. FIG. 4 is a partial perspective view showing a connection structure between magazine-type bobbin supply devices 20.

As shown in FIG. 2, the winding unit 4 includes a thread winding section 5 and a thread processing section 10. In the vertical direction, the thread winding section 5 is arranged at the upper part of the main frame 2. The yarn processing section 10 is arranged below the yarn winding section 5 in the vertical direction. The yarn processing section 10 includes a yarn feeding and exchanging section 3 and a yarn splicing section 8. The yarn supply exchange section 3 is arranged below the yarn processing section 10. The yarn splicing section 8 is arranged between the yarn winding section 5 and the yarn supplying and exchanging section 3.

In this way, the winding unit 4 is a module-divided unit, and is a combination of three modules: the yarn supply and exchange section 3, the yarn splicing section 8, and the yarn winding section 5, which are arranged in order from the bottom. It consists of Each device attached to the yarn supply exchange section 3, the yarn splicing section 8, and the yarn winding section 5 is provided as a module so that it can be attached to and detached from the main frame 2.

The yarn supply exchange section 3 is a part of the yarn processing section 10. The yarn feeding exchange section 3 is a portion in which a yarn feeding bobbin 6 (or a yarn feeding package (not shown)) that supplies yarn to be wound back onto the package 9 is set in a replaceable manner. The yarn feeding exchange section 3 is attached to the lower part of the main frame 2 so as to be placed on the bottom plate section 12 of the main frame 2.

The yarn feeding and changing section 3 is configured by selectively attaching any one of a plurality of types of yarn feeding and changing devices. Specifically, the yarn supply exchange section 3 of this embodiment includes a magazine-type bobbin supply device (magazine-type yarn supply bobbin supply device) 20, a tray-type bobbin supply device 30, and a package supply device (not shown). It is possible to attach any one of them.

The yarn splicing section 8 is a part of the yarn processing section 10. The yarn splicing section 8 is a section that connects the yarns supplied from the yarn supply and exchange section 3 to the yarn winding section 5. The yarn splicing section 8 is attached to a vertically intermediate portion of the main frame 2. Specifically, the position where the yarn splicing unit 8 is attached to the main frame 2 is above the position where the yarn supply exchange unit 3 is provided, and is below the position where the yarn winding unit 5 is attached. . The yarn splicing section 8 is attached to the front side of the main frame 2 by, for example, a suitable fixing member (for example, a bolt or the like). In a state where the yarn splicing section 8 is fixed to the main frame 2, the weight of the yarn splicing section 8 is supported by the support shaft 14 provided in the main frame 2.

The yarn splicing section 8 is constructed by selectively attaching any one of a plurality of types of yarn splicing mechanisms. Specifically, the yarn splicing section 8 of this embodiment can be attached with either a suction mouth type yarn splicing mechanism 70 or a yarn storage type yarn splicing mechanism (not shown).

The yarn winding section 5 is a section that winds the yarn supplied from the yarn supply and exchange section 3 around a core tube to form a package 9. The thread winding section 5 is attached to the upper part of the main frame 2. While fixed to the main frame 2 , the bottom surface of the back side of the thread winding section 5 is placed on the receiving plate 15 of the main frame 2 via a vibration absorbing member 59 . In other words, the thread winding section 5 is supported from below by the receiving plate 15 on its back side.

The thread winding section 5 is constructed by selectively attaching any one of a plurality of types of thread winding devices. Specifically, the yarn winding section 5 of this embodiment can be attached with either one of a traversing drum type yarn winding device 50 and an arm traverse type yarn winding device 60.

Each device attached to the yarn supply exchange section 3, the yarn splicing section 8, and the yarn winding section 5 is provided as a module so that it can be attached to and detached from the main frame 2. The main frame 2 functions as a base member for assembling modules such as the yarn supply exchange section 3, yarn splicing section 8, yarn winding section 5, and the like. The main frame 2 only needs to have a configuration that allows each module to be attached and detached, and its configuration is not limited.

FIG. 2 shows a magazine type bobbin supply device 20 in the yarn supply exchange section 3, a traversing drum type yarn winding device 50 in the yarn winding section 5, a suction mouth type yarn splicing mechanism 70 in the yarn splicing section 8, The configuration when each is attached is schematically shown. Hereinafter, the configuration of the winding unit 4 will be described in more detail regarding an example in which the winding unit 4 is configured by a combination of these three modules.

The magazine type bobbin supply device 20 includes a bobbin set section 21, a magazine type bobbin supply mechanism 22, and an unwinding auxiliary device (auxiliary device) 29.

The bobbin set section 21 can hold the yarn supply bobbin 6 for unwinding yarn at a predetermined position in an upright position.

The magazine-type bobbin supply mechanism 22 includes a cylindrical magazine can 23 through which an operator manually supplies the yarn supply bobbin 6. The magazine can 23 has a plurality of pockets arranged circumferentially. The yarn feeding bobbin 6 can be stocked by the operator inserting the yarn feeding bobbin 6 into this pocket portion. A yarn feeding bobbin guide section 24 is provided below the magazine can 23. The yarn supply bobbin guide section 24 causes the yarn supply bobbin 6 that has fallen from the magazine can 23 to further fall diagonally downward and guides it to the bobbin set section 21.

When all the yarns are unwound from the yarn feeding bobbin 6 already set in the bobbin set section 21, the empty yarn feeding bobbin is discharged by an unillustrated discharge mechanism. Thereafter, the yarn feeding bobbin 6 stocked in the bobbin supply mechanism 22 falls onto the yarn feeding bobbin guide section 24. As a result, a new yarn feeding bobbin 6 is set in the bobbin setting section 21.

The unwinding assist device 29 unwinds the yarn by bringing a movable member (guide member) 29a into contact with the balloon B1 formed on the upper part of the yarn feeding bobbin 6, and appropriately controlling the size of the balloon B1. to assist. When the yarn wound around the yarn supply bobbin 6 is pulled in the longitudinal direction of the bobbin, the portion where the yarn separates from the yarn layer revolves around the bobbin axis. Balloon B1 essentially means a locus that the yarn unwound upward from the yarn supply bobbin 6 passes as it is swung around. The movable member 29a is formed into a substantially cylindrical shape so that the thread can pass from the bottom to the top. The movable member 29a is attached to the yarn feeding frame 25 so as to be movable in the vertical direction by an elevating mechanism 29b consisting of, for example, a screw feeding mechanism. The driving force of an electric motor (not shown) is transmitted to the lifting mechanism 29b. The unit controller 90 controls the electric motor and changes the height of the movable member 29a using the lifting mechanism 29b. Thereby, the balloon B1 can be adjusted to an appropriate size.

The bobbin supply mechanism 22 and the unwinding assist device 29 are supported at the bottom of the bobbin set section 21 via a yarn supply frame (lower frame) 25. The bobbin set section 21 (and thus the magazine-type bobbin supply device 20) is attached to the main frame 2 with the bottom of the bobbin set section 21 placed on the bottom plate section 12.

The yarn feeding frame 25 includes a support body 28 and a rail member (second portion) 26. Support body 28 is an elongated member. The support body 28 is fixed to the bottom of the bobbin set section 21 in a vertically oriented state. The support body 28 supports the movable member 29a arranged above the bobbin set section 21 via the above-mentioned elevating mechanism 29b.

The rail member 26 is provided at the upper end of the support body 28 so as to extend in the front-rear direction shown in FIG. The rear end of the rail member 26 is attached to the support shaft 14 using bolts 92 shown in FIG.

In this embodiment, the back surfaces of the mounting flanges 26L and 26R of the rail member 26 are planar, while the front surface of the support shaft 14 is a curved surface. Since the mounting flanges 26L, 26R and the support shaft 14 are in a point contact relationship when viewed from the side, the rear end of the rail member 26 (in other words, the back surface of the yarn feeding frame 25) is the reference point for attaching the yarn feeding frame 25. It does not actually function as such. The yarn feeding frame 25 is attached to the bottom plate portion 12 of the main frame 2 with the bottom surface of the yarn feeding frame bottom plate 27 described above as a reference. An upper portion of the yarn feeding frame 25 is fixed to the support shaft 14 via a rail member 26.

In the automatic winder 1 of this embodiment, the magazine-type bobbin supply devices 20 belonging to two horizontally adjacent winding units 4 are connected to each other and arranged.

Specifically, as shown in FIG. 4, two magazine-type bobbin supply devices 20 that are adjacent to each other are connected via a connecting member 20a. The connecting member 20a is constructed by bending a plate into a U-shape. In each magazine type bobbin supply device 20, the magazine can 23 is supported by a magazine can support plate 23a. The connecting member 20a is arranged astride the adjacent magazine can support plates 23a. Both ends of the connecting member 20a in the left and right direction are each fixed to the magazine can support plate 23a using bolts 92. As a result, two adjacent magazine-type bobbin supply devices 20 are connected. This connection structure improves the strength of the magazine-type bobbin supply device 20, and also realizes stable attachment of the bobbin supply device 20.

The magazine can support plate 23a is formed into an inverted T shape when viewed from the front, as shown in FIG. However, the shape of the magazine can support plate 23a is not limited to the above.

The traverse drum type yarn winding device 50 includes a winding bobbin 51, a cradle 52, a traverse drum 53, a traverse drum rotation drive source (not shown), and a yarn winding frame (upper frame) 54.

The winding bobbin 51 forms a package 9 by winding the yarn supplied from the yarn supplying and exchanging section 3 around its outer periphery. The cradle 52 is configured to be able to hold the winding bobbin 51. The traverse drum is rotated by the driving force of the traverse drum rotation drive source. The traverse drum 53 can rotate the winding bobbin 51 while traversing (traversing) the yarn wound around the winding bobbin 51.

By rotating about a fulcrum 58, the cradle 52 can swing toward or away from the traversing drum 53. As a result, the package 9 is brought into contact with or separated from the traverse drum 53. A spiral traverse groove is formed on the outer peripheral surface of the traverse drum 53. The thread is wound onto the winding bobbin 51 while being traversed with a constant width by the traverse groove. Thereby, the package 9 having a constant winding width can be formed.

The thread winding frame 54 is a generally rectangular parallelepiped-shaped member. A cradle 52 and a traverse drum 53 are arranged on one left and right sides of the yarn winding frame 54. The thread winding frame 54 supports these members in a cantilevered manner.

A drive motor for the traverse drum 53 is arranged in the yarn winding frame 54 . A horizontal bottom plate 55 is provided at the bottom of the back side of the thread winding frame 54. With the bottom plate 55 placed on the receiving plate 15 via the vibration absorbing member 59, the thread winding frame 54 (and thus the thread winding section 5) is attached to the main frame 2. The thread winding frame 54 is arranged so as to partition the thread winding section 5 of the adjacent winding unit 4.

The suction mouse type yarn splicing mechanism 70 includes a yarn monitoring device 71, a splicer 72, a first yarn catching device 73, a second yarn catching device 74, a tension applying device 75, and a yarn splicing frame (intermediate frame) 76. and.

The yarn splicing frame 76 is a generally rectangular parallelepiped member that is elongated in the vertical direction. The yarn splicing frame 76 is attached to the main frame 2 so that its thickness direction coincides with the left-right direction of the automatic winder 1.

A yarn monitoring device 71, a splicer 72, a first yarn catching device 73, a second yarn catching device 74, and a tension applying device 75 are provided on one side in the thickness direction (the left side in this embodiment) of the yarn splicing frame 76. and are placed. The yarn splicing frame 76 supports these members in a cantilevered manner.

The yarn splicing frame 76 is attached to the vertically intermediate portion of the main frame 2 while supporting each of the above-mentioned parts. The yarn splicing frame 76 is arranged in alignment with the yarn winding frame 54 in the left-right direction so as to partition the yarn splicing section 8 of the adjacent winding unit 4. The yarn winding frame 54 and the yarn splicing frame 76 are not directly connected to each other, and a gap as a space is formed between them (in the vertical direction).

A unit controller 90 and the like are arranged inside the yarn splicing frame 76. The unit controller 90 functions as a control section for controlling each section of the winding unit 4.

The yarn monitoring device 71 detects defects such as slabs occurring in the yarn (hereinafter sometimes referred to as yarn defects) by monitoring the thickness of the yarn. A cutter is arranged near the yarn monitoring device 71 to immediately cut the yarn when the yarn monitoring device 71 detects a yarn defect.

The splicer 72 is used when the yarn monitoring device 71 detects a yarn defect and cuts the yarn with a cutter, when the yarn breaks while being unwound from the yarn supply bobbin 6, or when the yarn supply bobbin 6 is replaced. , connect the yarn on the yarn supply exchange section 3 side and the yarn on the yarn winding section 5 side. In the splicer 72 of this embodiment, compressed air is supplied from a compressor (not shown) to perform twisting of yarns, etc., thereby performing yarn splicing.

A first yarn catching device 73 and a second yarn catching device 74 are provided below and above the splicer 72. The first yarn catching device 73 suctions, catches and guides the yarn on the yarn supplying and exchanging section 3 side. The second yarn catching device 74 suctions, catches and guides the yarn on the yarn winding section 5 side. A suction port is formed at the distal end of the first thread catching device 73, and a suction mouth is provided at the distal end of the second thread catching device 74. The first thread catching device 73 and the second thread catching device 74 are connected to the opening 13a of the blower duct 13 via piping or the like. Thereby, a suction flow can be generated in the suction port and the suction mouth.

With this configuration, when replacing the yarn feeding bobbin 6, etc., the suction port of the first yarn catching device 73 rotates downward to suction and capture the yarn on the yarn feeding exchange section 3 side, and then rotates upward. By doing so, the bobbin thread is guided to the splicer 72. At almost the same time, the suction mouth of the second yarn catching device 74 suctions and catches the yarn being unwound from the package 9 which is driven in reverse, and then rotates downward to carry the upper yarn to the splicer 72. invite. Then, in the splicer 72, the yarn from the yarn supply exchange section 3 and the yarn from the package 9 are spliced.

With the above configuration, the winding unit 4 shown in FIG. 2 unwinds the yarn from the yarn feeding bobbin 6 set in the yarn feeding exchange section 3 and winds it onto the winding bobbin 51 to form a package 9 of a predetermined length. can be formed.

As shown in FIG. 3, the winding unit 4 of this embodiment includes an arm traverse type yarn winding device 60 instead of the traversing drum type yarn winding device 50, and a magazine type bobbin supply device 20 instead of the traverse drum type yarn winding device 50. The configuration may include a transport tray type bobbin supply device 30. The winding unit 4 shown in FIG. 3 includes a combination of a thread winding device 60 and a bobbin supply device 30.

The arm traverse type yarn winding device 60 shown in FIG. It includes an arm 67 and a traverse drive motor 66.

The cradle 62 rotatably supports the take-up bobbin 61. The take-up bobbin 61 is connected to an output shaft of a take-up bobbin rotation drive source and is rotationally driven. The traverse arm 67 is driven to reciprocate and swing by a traverse drive motor 66.

The contact roller 63 is rotatably supported by the thread winding frame 64. One end of the contact roller 63 in the axial direction is attached to the thread winding frame 64. The contact roller 63 is rotatable in contact with the circumferential surface of the winding bobbin 61. The contact roller 63 may be rotatably attached to, for example, a support arm (not shown) fixed to the yarn winding frame 64.

Various devices of the thread winding device 60 are arranged on one side of the thread winding frame 64 in the left-right direction. The various devices include a cradle 62, a winding bobbin rotation drive source, a traverse drive motor 66, and the like. The traverse arm 67 is driven to reciprocate and swing by a traverse drive motor 66.

The traverse arm 67 performs a reciprocating swing motion by the rotor of the traverse drive motor 66 repeating forward and reverse rotations. As a result, the thread hooked on the tip of the traverse arm 67 is supplied to the contact roller 63 side while being traversed, and is wound onto the rotating winding bobbin 61. Thereby, a package 9 in which the yarn from the yarn supply bobbin 6 is wound back can be formed.

The conveyor tray type bobbin supply device 30 shown in FIG. 3 includes a bobbin setting section 31, a yarn unwinding assisting device 39, and a yarn feeding frame 25.

The bobbin set section 31 can hold the yarn supply bobbin 6 for unwinding yarn at a predetermined position in an upright position. The yarn unwinding assist device 39 assists in unwinding the yarn by bringing the movable member 39a into contact with the balloon B1 formed on the upper part of the yarn supply bobbin 6. The configurations of the yarn unwinding assisting device 39, the movable member 39a, and the elevating mechanism 39b are substantially the same as those of the previously described unwinding assisting device 29, movable member 29a, and elevating mechanism 29b, and therefore a description thereof will be omitted.

The support body 28 of the yarn feeding frame 25 supports a movable member 39a arranged above the bobbin set section 31 via an elevating mechanism 39b. In the transport tray type bobbin supply device 30, the yarn feeding frame 25 further includes a yarn feeding frame bottom plate 27. The yarn feeding frame bottom plate 27 is formed with a track through which a tray carrying the yarn feeding bobbin 6 can pass.

The yarn feeding frame bottom plate 27 is fixed to the bottom plate portion 12 of the main frame 2 with bolts or the like (not shown). The support body 28 is supported by the yarn feeding frame bottom plate 27 in a vertically oriented state. In this way, in the transport tray type bobbin supply device 30 as well, the yarn feeding frame 25 is attached to the main frame 2 with the bottom surface as a reference, similarly to the magazine type.

Next, a specific configuration for attaching the yarn splicing frame 76 of the yarn splicing mechanism 70 to the main frame 2 will be described. FIG. 5 is an exploded perspective view showing a configuration for attaching the yarn splicing frame 76 to the main frame 2. FIG. 6 is a perspective view showing a configuration for fixing the rail member 26. FIG. 7 is a perspective view showing a configuration for attaching the yarn splicing frame 76 to the rail member 26. FIG. 8 is a diagram showing how the yarn splicing frame 76 slides along the rail member 26.

In the automatic winder 1 of this embodiment, structures for attaching the yarn splicing frame 76 to the main frame 2 are arranged in each of the blower duct 13 and the yarn supply frame 25.

As shown in FIG. 5, in front of the blower duct 13, a positioning pin (positioning portion) 13b, an upper hole 16, and a lower mounting bracket 17 are arranged. The positioning pin 13b is provided to accurately attach the yarn splicing frame 76 to a predetermined position on the blower duct 13. The upper hole 16 and the lower mounting bracket 17 are provided for attaching the splicing frame 76.

The positioning pin 13b is provided so as to protrude further forward from the front surface of the blower duct 13. That is, the positioning pin 13b extends in the front-rear direction of the automatic winder 1. A conical taper portion is formed at the tip of the positioning pin 13b. This makes it easier to insert the positioning pin 13b into the positioning hole 78b, which will be described later. The shape of the positioning pin 13b is not limited to a truncated cone shape, and may be formed, for example, in a cylindrical shape, a conical shape, or a hemispherical shape. The positioning pin 13b is arranged on the left side of the left upper hole 16. However, the position of the positioning pin 13b is arbitrary. A small diameter portion where the diameter of the positioning pin 13b is reduced can also be provided on the side of the blower duct 13 where the positioning pin 13b is provided. By providing the small diameter portion in this manner, when the positioning pin 13b is inserted into the positioning hole 78b, a portion of the positioning hole 78b is locked in the small diameter portion. This can prevent the positioning hole 78b inserted into the positioning pin 13b from moving and coming off due to the inclination of the tapered portion. This effect allows the operator to hold the yarn splicing frame 76 with light force, improving work efficiency.

The upper hole 16 is a screw hole. The upper holes 16 are formed in pairs on the upper side of the front surface of the blower duct 13. A pair of upper holes 16 are formed corresponding to each of the winding units 4. The pair of upper holes 16 are arranged at a predetermined distance in the left-right direction of the automatic winder 1.

One lower mounting bracket 17 is provided at a position corresponding to each winding unit 4. The lower mounting bracket 17 is formed by appropriately bending a plate-like member. The lower mounting bracket 17 has a mount plate 17a and a bottom portion 17b, as shown in FIG. 5, for example. The mount plate 17a is arranged parallel to the front surface of the blower duct 13. The bottom portion 17b is arranged horizontally.

The mount plate 17a of the lower mounting bracket 17 is fixed to the front surface of the blower duct 13 with screws 93. The configuration for fixing the lower mounting bracket 17 to the main frame 2 is not limited. The bottom portion 17b may be fixed to the bottom surface of the blower duct 13 with a fixing member such as a screw (not shown).

A screw hole 17c for attaching the thread splicing frame 76 is formed on the lower right side of the mount plate 17a of the lower mounting bracket 17.

The yarn splicing frame 76 of this embodiment includes an upper fixing plate 78. The upper part of the yarn splicing frame 76 is attached to the upper hole 16 via the upper fixing plate 78. The upper fixing plate 78 is fixed to the upper part of the back side of the yarn splicing frame 76.

The method for fixing the upper fixing plate 78 to the back surface of the yarn splicing frame 76 is not particularly limited. For example, the upper fixing plate 78 can be fixed to the splicing frame 76 using bolts or the like. A hook portion or a fitting portion (not shown) may be formed on the upper fixing plate 78, and the upper fixing plate 78 may be fixed to the back surface of the yarn splicing frame 76 using the hook portion or fitting portion. The upper fixing plate 78 may be formed integrally with the yarn splicing frame 76.

The upper fixing plate 78 has a pair of extensions 78a. Each extending portion 78a extends in the left-right direction from the back surface of the yarn splicing frame 76. The pair of extensions 78a are arranged corresponding to each of the two upper holes 16 in the left-right direction. As shown in FIG. 5, the pair of extensions 78a are fixed to the upper hole 16 via bolts (fixing members) 92 or the like. In this way, the upper back surface of the yarn splicing frame 76 can be fixed to the blower duct 13.

As shown in FIG. 5, a positioning hole 78b is formed in the left extending portion 78a in a penetrating shape. When the yarn splicing frame 76 is attached to the blower duct 13, the positioning pin 13b is inserted through the positioning hole 78b from the rear. The positioning hole 78b is formed to be slightly elongated in the vertical direction. The upper end of the large diameter portion of the positioning pin 13b contacts the upper edge of the positioning hole 78b, thereby vertically positioning the yarn splicing frame 76 with respect to the blower duct 13. Further, since the width of the positioning hole 78b substantially matches the diameter of the large diameter portion of the positioning pin 13b, the yarn splicing frame 76 is positioned with respect to the blower duct 13 in the left-right direction.

The vicinity of the vertically intermediate portion of the thread splicing frame 76 is attached to a lower mounting bracket (screw hole 17c) via a lower fixing plate 79.

A screw hole 17c is formed in the lower mounting bracket 17. As shown in FIG. 6, the lower fixing plate 79 is fixed slightly below the vertically intermediate portion of the back surface of the yarn splicing frame 76, corresponding to the position of the screw hole 17c.

Similar to the upper fixing plate 78, the structure for fixing the lower fixing plate 79 to the back surface of the yarn splicing frame 76 is not particularly limited.

The lower fixing plate 79 is arranged to correspond to the screw hole 17c formed in the lower right portion of the lower mounting bracket 17. The lower fixing plate 79 extends further to the right from the right side surface of the yarn splicing frame 76. As shown in FIG. 5, the lower fixing plate 79 is fixed to the screw hole 17c via a bolt (fixing member) 92 or the like. In this way, the vicinity of the vertically intermediate portion of the back surface of the yarn splicing frame 76 can be fixed to the blower duct 13.

The back surface of the upper fixing plate 78 and the back surface of the lower fixing plate 79 are both formed flat. The surfaces of the blower duct 13 to which the upper fixing plate 78 and the lower fixing plate 79 are attached are also formed flat. This flat surface serves as a reference surface for mounting. The yarn splicing frame 76 is attached to the blower duct 13 with three bolts 92 with its back surface as a reference.

As mentioned above, various devices related to yarn splicing are attached to the left side of the yarn splicing frame 76. These various devices include a yarn monitoring device 71, a splicer 72, a first yarn catching device 73, a second yarn catching device 74, a tension applying device 75, and the like. Therefore, when attaching the yarn splicing frame 76, it is easy to tighten the bolt 92 at the lower right of the three locations.

As described above, the yarn feeding frame 25 includes the rail member 26 to which the yarn splicing frame 76 is attached. The rail member 26 is an elongated member arranged to extend in the front-rear direction. The rail member 26 is supported by a support 28.

The rail member 26 is provided at the upper end of the support body 28, as shown in FIG. When viewed in the front-rear direction of the winding unit 4, the rail member 26 slightly protrudes further upward than the upper end of the support body 28. The rail member 26 may be formed integrally with the support body 28, or may be fixed to the support body 28, for example, via bolts or the like.

The rail member 26 is elongated in the front-rear direction of the winding unit 4. The lower surface of the rail member 26 is open when viewed along its longitudinal direction (the front-rear direction of the winding unit 4). In other words, a cross section of the rail member 26 taken along a plane perpendicular to the longitudinal direction has a U-shaped shape that is upside down.

The rail member 26 includes a left side wall 26a, a right side wall 26b, and a top plate 26c.

The left side wall 26a and the right side wall 26b are arranged side by side in the left-right direction of the winding unit 4. An appropriate space is formed between the left side wall 26a and the right side wall 26b. When viewed along the front-rear direction, the left side wall 26a and the right side wall 26b are arranged parallel to each other. The upper ends of the left side wall 26a and the right side wall 26b are vertically connected to the left and right ends of the top plate 26c.

A pair of mounting flanges 26L and 26R are formed at the rear end of the rail member 26 in the front-rear direction of the winding unit 4.

The pair of mounting flanges 26L and 26R are formed into plate shapes. Both the mounting flanges 26L and 26R are provided parallel to the front surface of the blower duct 13. The mounting flange 26L is located to the left of the rear end of the left side wall 26a, and is vertically connected to the rear end of the left side wall 26a. The mounting flange 26R is located to the right of the rear end of the right side wall 26b, and is vertically connected to the rear end of the right side wall 26b. However, the configuration of the mounting flanges 26L, 26R is not limited to the above.

Each mounting flange 26L, 26R is fixed to the center of the front surface of the support shaft 14 using a bolt 92 or the like. Thereby, the rear end of the rail member 26 is supported by the support shaft 14.

At the front part of the rail member 26, a splicing frame attachment hole 26d is formed in the right side wall 26b. The lower front portion of the right side of the yarn splicing frame 76 is fixed to the yarn splicing frame attachment hole 26d via a connecting portion 18, which will be described later.

An elongated recess (first portion) 76d is formed on the bottom surface of the yarn splicing frame 76 of this embodiment. The recessed portion 76d is formed so as to open the lower side. A cross section of the recessed portion 76d taken along a plane perpendicular to the longitudinal direction has a U-shaped upside down shape corresponding to the rail member 26. The rail member 26 can be inserted into the recess 76d relatively from the bottom to the top.

The recessed portion 76d has three inner wall surfaces corresponding to the left side wall 26a, right side wall 26b, and top plate 26c of the rail member 26. In the following description, among the three inner wall surfaces of the recessed portion 76d, the inner wall surface arranged horizontally so as to correspond to the top plate 26c may be referred to as an "inner top surface 76e."

The recessed portion 76d is formed to extend in the front-rear direction. When viewed along the front-rear direction of the winding unit 4, the convex shape of the rail member 26 and the concave shape of the recessed portion 76d correspond to each other. When the yarn splicing frame 76 is fixed to the front surface of the blower duct 13, the rail member 26 is inserted into the recess 76d. However, a vertical gap is formed between the inner top surface 76e of the recess 76d and the upper surface of the rail member 26.

When the yarn splicing frame 76 is removed from the blower duct 13, as shown in FIG. 8, the yarn splicing frame 76 descends under its own weight, and the inner top surface 76e of the recess 76d and the upper surface of the rail member 26 come into contact with each other. That is, the yarn splicing frame 76 is supported by the rail member 26. In this state, the yarn splicing frame 76 can be slid and moved in the front-rear direction along the rail member 26.

In this way, when the yarn splicing frame 76 is not attached to the main frame 2 and the yarn supply frame 25, the rail member 26 supports the yarn splicing frame 76. In addition, the rail member 26 guides the sliding movement of the yarn splicing frame 76 in the front-back direction, and restricts the movement of the yarn splicing frame 76 in the left-right direction.

The yarn splicing frame 76 removed from the blower duct 13 can be pulled out forward while being supported by the yarn supply frame 25. When the yarn splicing frame 76 is pulled forward with respect to the adjacent winding unit 4, the right side surface of the yarn splicing frame 76 can be largely exposed, for example, and maintenance can be easily performed.

In the winding unit 4 of this embodiment, as shown in FIG. A gap is formed between the top plate 26c and the top plate 26c. That is, the yarn splicing frame 76 and the yarn feeding frame 25 are arranged with an interval in the vertical direction. Thereby, when the winding unit 4 is in operation, it is possible to suppress the transmission of the vibration of the yarn supply exchange section 3 to the yarn splicing section 8 and vice versa.

In this embodiment, the gap is determined to be approximately several millimeters, preferably 4 millimeters or less. As a result, when the yarn splicing frame is removed from the blower duct 13, the yarn splicing frame 76 (that is, the yarn splicing mechanism 70) is immediately supported by the yarn supplying frame 25. Therefore, the impact caused by the thread splicing frame 76 falling onto the rail member 26 can be suppressed. As a result, for example, the impact applied to various devices (including the unit controller 90) disposed on the yarn splicing frame 76 can be reduced.

As shown in FIG. 7, a concave cutout 19 is formed in the lower front portion of the right side of the yarn splicing frame 76. The cutout portion 19 is formed to be open on the right side and the bottom side. The notch 19 can accommodate a portion of a connecting portion 18, which will be described later. The cutout portion 19 is arranged to correspond to the yarn splicing frame attachment hole 26d formed in the rail member 26.

The yarn splicing frame 76 includes a connecting portion 18 . The connecting portion 18 is a member formed in an elongated plate shape. The connecting portion 18 is provided so that its thickness direction matches the left-right direction of the yarn splicing frame 76, and its longitudinal direction matches the up-down direction. The connecting portion 18 is formed with an upper mounting hole 18a and a lower mounting hole 18b. The upper mounting hole 18a and the lower mounting hole 18b are arranged at appropriate intervals in the vertical direction.

A screw hole (not shown) is formed in the notch 19 in correspondence with the upper mounting hole 18a. The upper part of the connecting part 18 is fixed inside the notch part 19 via a bolt 92 or the like inserted through the upper mounting hole 18a. A lower portion of the connecting portion 18 projects further downward than the yarn splicing frame 76 .

When the yarn splicing frame 76 is fixed to the front surface of the blower duct 13, the lower part of the connecting portion 18 fixed to the notch 19 faces the right side surface of the right side wall 26b of the rail member 26. As shown in FIG. 7, the lower part of the connecting portion 18 is attached to the splicing frame attachment hole 26d via a bolt 92 or the like that passes through the lower attachment hole 18b. When the bolt 92 in the lower mounting hole 18b is tightened, the connecting portion 18 and the rail member 26 come into contact in the left-right direction.

In this way, the connecting portion 18 is fixed to each of the notch 19 of the yarn splicing frame 76 and the right side wall 26b of the rail member 26 using the two bolts 92. The surface of the notch 19 on which the connecting portion 18 is attached and the right side surface of the right side wall 26b are both formed flat. The surface of the connecting portion 18 facing the notch portion 19 and the right side wall 26b is also formed flat. This flat surface serves as a reference surface for mounting. The connecting portion 18 and the bolt 92 are used to align the surface of the notch 19 of the yarn splicing frame 76 and the front right side surface of the right side wall 26b of the rail member 26 in the left-right direction, while connecting the yarn splicing frame 76 and the rail member. 26 can be mechanically coupled. That is, the connecting portion 18 has a function of relatively positioning the yarn splicing frame 76 and the rail member 26 in the left-right direction.

The upper mounting hole 18a of the connecting portion 18 of this embodiment is formed as a long hole extending in the vertical direction. The lower mounting hole 18b is formed as a long hole extending in the front-rear direction. As a result, even if a positional deviation occurs between the front lower part of the yarn splicing frame 76 and the front end of the rail member 26 in side view due to some cause such as an assembly error, the positional deviation can be absorbed by the elongated hole. Thus, the yarn splicing frame 76 and the rail member 26 can be fixed to each other by the connecting portion 18.

When the two bolts 92 of the connecting portion 18 are sufficiently tightened, the connecting portion 18 maintains the positional relationship between the lower front portion of the yarn splicing frame 76 and the front end portion of the rail member 26 . Therefore, since the overall rigidity can be improved, vibrations etc. during operation can be suppressed.

As described above, the automatic winder 1 of this embodiment unwinds yarn from the yarn supply bobbin 6 and winds it as a package 9. The automatic winder 1 includes a yarn feeding frame 25, a yarn winding frame 54, a yarn splicing frame 76, and a main frame 2. The yarn feeding frame 25 is provided with a movable member 29a that contacts the balloon B1 formed by the yarn immediately after being unwound from the yarn feeding bobbin 6. The thread winding frame 54 is provided with a thread winding section 5 that winds up the package 9. The yarn splicing frame 76 is provided between the yarn winding frame 54 and the yarn feeding frame 25. The main frame 2 supports each of the yarn winding frame 54, the yarn splicing frame 76, and the yarn feeding frame 25. The yarn splicing frame 76 and the yarn feeding frame 25 are arranged with an interval in the vertical direction. The connecting portion 18 of the yarn splicing frame 76 and the rail member 26 of the yarn feeding frame 25 are arranged in contact with each other in the horizontal left-right direction.

As a result, vertical positional deviation due to attachment error of the yarn splicing frame 76 or the yarn feeding frame 25 can be absorbed by the space between them, and at the same time, the yarn splicing frame 76 can be supported by the yarn feeding frame 25.

Furthermore, in the automatic winder 1 of this embodiment, the yarn splicing frame 76 is attached to the main frame 2 with its back surface as a reference. The yarn feeding frame 25 is attached to the main frame 2 with its bottom surface as a reference.

If the attachment standards of the yarn feeding frame 25 and the yarn splicing frame 76 to the main frame 2 are different from each other, vertical positional deviation is likely to occur, but this positional deviation can be appropriately absorbed by the spacing between the two. can.

Furthermore, in the automatic winder 1 of this embodiment, the yarn splicing frame 76 has a concave portion 76d that is concave in horizontal view. The yarn feeding frame 25 has a convex rail member 26 when viewed horizontally. The rail member 26 is arranged so as to fit into the recess 76d.

Thereby, when the yarn splicing frame 76 is removed from the main frame 2, movement of the yarn splicing frame 76 can be restricted by being caught between the rail member 26 and the recess 76d. Therefore, the stability of the yarn splicing frame 76 can be ensured.

Further, in the automatic winder 1 of this embodiment, a convex rail member 26 is arranged on the yarn feeding frame 25.

Thereby, when pulling out the yarn splicing frame 76, the yarn splicing frame 76 can be suitably guided by the rail member 26.

Further, in the automatic winder 1 of this embodiment, the yarn splicing frame 76 is removably fixed to the main frame 2 with bolts 92. When the bolt 92 is removed, the recess 76d of the yarn splicing frame 76 removed from the main frame 2 and the rail member 26 come into contact in the vertical direction.

Thereby, the yarn splicing frame 76 removed from the main frame 2 can be supported from below.

Further, in the automatic winder 1 of this embodiment, the blower duct 13 is provided with a positioning pin 13b for determining the position of the yarn splicing frame 76.

Thereby, the yarn splicing frame 76 can be accurately attached to a predetermined position of the blower duct 13.

Further, in the automatic winder 1 of this embodiment, when the yarn splicing frame 76 is attached to the main frame 2, the distance between the yarn splicing frame 76 and the yarn feeding frame 25 in the vertical direction is 4 mm or less. be.

Thereby, it is possible to absorb the vertical positional deviation that occurs between the yarn feeding frame 25 and the yarn splicing frame 76, and it is also possible to make the automatic winder 1 more compact in the vertical direction. Since the falling stroke when the yarn splicing frame 76 is removed from the main frame 2 is small, the impact applied to the yarn splicing section 8 and the like can be reduced.

Further, the automatic winder 1 of this embodiment includes a plurality of winding units 4 arranged in a row. A yarn feeding frame 25 provided with a magazine-type bobbin supply device 20 is installed in each of the plurality of winding units 4. Magazine-type bobbin supply devices 20 provided on yarn supply frames 25 of adjacent winding units 4 are connected to each other.

Thereby, the strength of the magazine-type bobbin supply device 20 can be improved.

Although the preferred embodiments of the present invention have been described above, the above configuration can be modified as follows, for example. A single change may be made, or a plurality of changes may be made in any combination.

In addition to the suction mouth type yarn splicing mechanism 70, for example, a yarn storage type yarn splicing mechanism can also be attached to the yarn splicing section 8.

The winding unit 4 may be configured as an air spinning unit or a rotor spinning unit.

A pair of horizontal support surfaces may be provided on both left and right sides of the rail member 26. Each support surface is elongated and parallel to the rail member 26. When the yarn splicing frame 76 is fixed to the blower duct 13, a vertical gap is formed between the support surface and the bottom surface of the yarn splicing frame 76. As with the above, the size of this gap is preferably 4 mm or less. When the yarn splicing frame 76 is removed from the blower duct 13, the bottom of the yarn splicing frame 76 is supported by a support surface instead of the top plate 26c.

A rail member may be provided on the yarn splicing frame 76 side, and a recess may be provided on the yarn feeding frame 25 side. However, it is preferable to provide the recess 76d on the side of the yarn splicing frame 76 in order to ensure stability when the yarn splicing frame 76 is placed alone on a floor surface or the like.

It is also possible to provide a recessed portion on the yarn supplying frame 25 side, which has a left-right width that can accommodate the entire lower end of the yarn splicing frame 76. When the yarn splicing frame 76 is fixed to the blower duct 13, a vertical gap is formed between the inner bottom surface of the recess and the bottom surface of the yarn splicing frame 76. In this case, there is no need to provide a rail member on the yarn splicing frame 76 side.

It is also possible to omit the rail member and the recessed portion so that the yarn splicing frame 76 cannot slide forward.

The yarn splicing frame 76 may be attached to the main frame 2 with reference to a surface other than the back surface, and the yarn supply frame 25 may be attached to the main frame 2 with reference to a surface other than the bottom surface.

1 Automatic winder 2 Main frame (machine frame)
5 Yarn winding section 6 Yarn supply bobbin 9 Package 20 Bobbin supply device (Yam supply bobbin supply device)
25 Yarn feeding frame (lower frame)
26 Rail member (second part)
29a Movable member (guide member)
54 Yarn winding frame (upper frame)
64 Thread winding frame (upper frame)
76 Thread splicing frame (intermediate frame)
76d Recess (first part)
92 bolt (fixing member)
B1 Balloon

Claims (8)

An automatic winder that unwinds yarn from a yarn feeding bobbin and winds it as a package,
a lower frame provided with a guide member that contacts a balloon formed by the yarn immediately after being unwound from the yarn supply bobbin;
an upper frame provided with a thread winding section for winding the package;
an intermediate frame provided between the upper frame and the lower frame;
a machine frame that supports each of the upper frame, the intermediate frame, and the lower frame;
Equipped with
The automatic winder is characterized in that the intermediate frame and the lower frame are arranged with an interval in the vertical direction and in contact with each other in the horizontal direction. The automatic winder according to claim 1,
The intermediate frame is attached to the machine frame with its back side as a reference,
The automatic winder is characterized in that the lower frame is attached to the machine frame with its bottom surface as a reference. The automatic winder according to claim 1,
The intermediate frame has a concave first portion when viewed horizontally,
The lower frame has a convex second portion when viewed horizontally,
An automatic winder characterized in that the second part is arranged to fit into the first part. The automatic winder according to claim 3,
The automatic winder, wherein the second portion is a rail member. The automatic winder according to claim 4,
The intermediate frame is removably fixed to the machine frame by a fixing member,
An automatic winder characterized in that when the fixing member is removed, the first portion of the intermediate frame removed from the machine frame comes into contact with the rail member in the vertical direction. The automatic winder according to claim 1,
An automatic winder characterized in that the machine frame is provided with a positioning part for determining the position of the intermediate frame. The automatic winder according to claim 1,
An automatic winder characterized in that, when the intermediate frame is attached to the machine frame, a distance between the intermediate frame and the lower frame in the vertical direction is 4 mm or less. The automatic winder according to claim 1,
Equipped with multiple automatic winder units arranged side by side,
Each of the plurality of automatic winder units is provided with the lower frame provided with a magazine-type yarn feeding bobbin supply device,
An automatic winder characterized in that the magazine-type yarn feeding bobbin supply devices provided on the lower frames of adjacent automatic winder units are connected to each other.

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