Yarn descending device

Abstract

The invention relates to a yarn lowering device which comprises a yarn holding part, a rail (51), a sliding part (52) and a cover (53). The cover (53) covers at least a part of a side surface portion of the rail (51). The cover (53) is provided with a slit (84) and an opening / closing mechanism (85). The slit (84) extends in the vertical direction. The opening and closing mechanism (85) opens and closes the slit (84) and forms an open portion (86) and a closed portion (87) in the cover (53). At least a portion of the sliding portion (52) is exposed to the outside of the cover (53) via an open portion (86) of the cover (53). When the boundary between an open portion (86) for exposing the sliding portion (52) and a closed portion (87) on the upper side thereof is referred to as an upper boundary, the sliding portion (52) slides, whereby the sliding portion (52) acts on the opening / closing mechanism (85), and the upper boundary moves together with the sliding portion (52).

Description

Technical Field

[0001] The invention relates to a wire lowering device, which lowers a wire from a floor where a spinning device is arranged to a floor where a winding device is arranged. Background Art

[0002] Patent document 1 is Japanese Patent Application Publication No. 2018-178318. Patent document 2 is Japanese Patent Application Publication No. 5-177499.

[0003] Patent document 1 discloses a wire lowering device. The wire lowering device includes a wire lowering component that hooks and holds the wire spun by the spinning device. A metal wire is connected to the wire lowering component, and the wire lowering component is lowered by pulling out the metal wire. In addition, the wire lowering component is raised by winding up the metal wire. In this way, the wire lowering component can be raised and lowered between the upper layer and the lower layer. A guide component is provided in the area where the wire lowering component is raised and lowered to guide the wire lowering component when it is raised and lowered.

[0004] Patent document 2 discloses a cover device for covering a processing head of a processing machine. The cover device includes a plurality of covers. The cover device is extended and retracted by overlapping or releasing the plurality of covers. Thus, the processing head can continue to be covered even when the processing head moves.

[0005] Around each part of the wire lowering device, for example, the wire lowering component, there are wire scraps generated by the spinning device. Therefore, in the wire lowering device of Patent Document 1, wire scraps sometimes adhere to the guide component and the like. In addition, when a track structure is used instead of a metal wire to raise and lower the wire lowering component (wire hanging part), since wire scraps accumulate on the track, frequent maintenance is required. In addition, the telescopic cover device shown in Patent Document 2 is a structure in which the covers overlap and shrink, and is therefore only effective for structures with a small amount of movement, such as a processing head. Therefore, this telescopic cover device cannot be applied to the track of the wire lowering device. Summary of the invention

[0006] The present invention has been made in view of the above circumstances, and a main object of the present invention is to provide a structure with low maintenance frequency of the rail in a wire lowering device that uses the rail to raise and lower the wire hooking part.

[0007] The problems to be solved by the present invention are as described above. Next, means for solving the problems and their effects will be described.

[0008] According to the viewpoint of the present invention, a wire lowering device having the following structure is provided. That is, the wire lowering device lowers the silk thread from the second floor where the spinning device for spinning the silk thread is provided to the first floor where the winding device for winding the silk thread is provided. The wire lowering device comprises a silk thread holding portion, a track, a sliding portion, and a cover. The silk thread holding portion holds the silk thread spun by the spinning device. The track is arranged to extend from the first floor to the second floor along the up-down direction. The sliding portion is connected to the silk thread holding portion and slides along the track together with the silk thread holding portion. The cover covers at least a part of the side surface of the track. A slit and an opening and closing mechanism are provided on the cover. The slit extends along the up-down direction. The opening and closing mechanism opens and closes the slit to form an open part and a closed part on the cover. At least a part of the sliding portion is exposed to the outside of the cover through the open part of the cover. When the boundary between the open portion for exposing the sliding part and the closed portion on the upper side thereof is referred to as an upper boundary, the sliding part slides, thereby acting on the opening and closing mechanism, so that the upper boundary moves together with the sliding part.

[0009] As a result, the upper boundary moves following the sliding of the sliding portion, so that an open portion is less likely to be formed on the upper side of the sliding portion. As a result, wire scraps are less likely to accumulate on the rail, so the maintenance frequency of the rail can be reduced.

[0010] The wire lowering device is preferably configured as follows: that is, when the boundary between the open portion for exposing the sliding part and the closed portion below it is referred to as a lower boundary, the sliding part slides, thereby acting on the opening and closing mechanism, so that the lower boundary moves together with the sliding part.

[0011] As a result, the lower boundary moves following the sliding of the sliding portion, so that an open portion is less likely to be formed on the lower side of the sliding portion. As a result, wire scraps are less likely to accumulate on the rail, so the maintenance frequency of the rail can be further reduced.

[0012] In the above-mentioned wire dropping device, preferably, the cover is in a cylindrical shape and the upper surface is closed.

[0013] Thereby, it is difficult for wire scraps to enter from the upper surface of the cover. As a result, it is more difficult for wire scraps to accumulate on the rail, so the maintenance frequency of the rail can be further reduced.

[0014] In the wire dropping device, it is preferred that the slit of the cover is continuous from the upper end to the lower end of the cover.

[0015] Thereby, even when the movable range of the sliding portion is large, it is possible to cope with the situation.

[0016] The wire lowering device is preferably configured as follows. That is, the wire lowering device is provided with a fixing member for connecting the track to the base body and fixing the track. An opening is provided on the cover at a portion other than the slit. The fixing member connects the track to the base body via the opening.

[0017] This makes it possible to achieve both fixation of the rail and suppression of accumulation of wire scraps on the rail.

[0018] The wire lowering device is preferably configured as follows. That is, the opening and closing mechanism includes a first component, a second component, and an opening and closing component. The first component is arranged along the slit at a portion of the first side separated by the slit. The second component is arranged along the slit at a portion of the second side separated by the slit. The opening and closing component connects the first component and the second component. The opening and closing component is fixed to the sliding portion, and the opening and closing component moves integrally with the sliding portion.

[0019] This makes it possible to easily realize a configuration in which the upper boundary is moved as the sliding portion slides.

[0020] The wire lowering device is preferably configured as follows. That is, the opening and closing mechanism includes a first component and a second component. The first component is arranged along the slit at a portion of the first side separated by the slit. The second component is arranged along the slit at a portion of the second side separated by the slit and can be engaged with the first component. The first component is separated from the second component by the sliding portion contacting the engagement portion of the first component and the second component. The first component is engaged with the second component by the sliding portion leaving the separation portion of the first component and the second component.

[0021] This makes it possible to more easily realize a configuration in which the upper boundary is moved as the sliding portion slides. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram showing the structure of a spinning take-up device.

[0023] Figure 2 This is a block diagram simply showing the control structure of the spinning take-up device.

[0024] Figure 3 This is a cross-sectional view showing the structure of the wire dropping device and its surrounding parts.

[0025] Figure 4 It is a three-dimensional diagram of the lifting mechanism and the thread holding part.

[0026] Figure 5 It is a perspective view showing the state of the cover when the sliding portion is at the first height.

[0027] Figure 6 It is a perspective view showing the state of the cover when the sliding portion is at the second height. DETAILED DESCRIPTION

[0028] Next, embodiments of the present invention will be described with reference to the drawings. In the following description, "upstream" and "downstream" refer to upstream and downstream in the running direction of the yarn Y produced.

[0029] First, refer to Figure 1 The outline of the spinning take-up device 1 will be described. Figure 1 The spinning and winding device 1 shown is a device that spins out a yarn Y of synthetic fiber and winds up the spun yarn Y to form a package P.

[0030] The spinning winding device 1 includes a spinning device 3, a wire lowering device 5, a wire hanging device 2, a traction unit 6, and a winding device 7. The yarn Y spun by the spinning device 3 is lowered from the second floor to the first floor by the wire lowering device 5. The yarn Y lowered to the first floor is hung by the wire hanging device 2 and pulled by the traction unit 6. The winding device 7 winds up the yarn Y pulled by the traction unit 6 to form a package P. In addition, the spinning winding device 1 is arranged in a building with multiple floors. In the following description, the floor where the spinning device 3 is arranged is referred to as the second floor, and the floor where the winding device 7 is arranged is defined as the first floor. The second floor is arranged at a higher position than the first floor. In addition, the first floor and the second floor are separated by a partition floor 9.

[0031] exist Figure 1 , a spinning device 3, a traction unit 6, and a winding device 7 are shown, but these devices may be provided in plurality. In this case, a plurality of hanging devices 2 or a plurality of lowering devices 5 may be provided. Alternatively, the hanging devices 2 or the lowering devices 5 may be provided in a ratio relative to the plurality of spinning devices 3, etc.

[0032] like Figure 2As shown, the spinning winding device 1 includes a centralized control device 101, a winding control device 102, and a wire hanging control device 103. The centralized control device 101, the winding control device 102, and the wire hanging control device 103 are respectively known computers equipped with a CPU, a ROM, a RAM, etc., and various controls are performed by the CPU executing the program stored in the ROM. The centralized control device 101 performs controls related to various parts of the spinning winding device 1. The winding control device 102 performs controls related to various parts of the traction section 6 and the winding device 7. The wire hanging control device 103 performs controls related to various parts of the wire hanging device 2. In addition, the combination of the control device and the control object controlled by the control device is an example and can be changed. For example, the centralized control device 101 can also control various parts of the wire hanging device 2, or a control device for controlling the traction section 6 can be independently provided.

[0033] Hereinafter, each device constituting the spinning take-up device 1 will be described in detail. The spinning device 3 is provided with a plurality of spinning holes (not shown). A molten polymer in a high temperature state is supplied to the spinning holes by a polymer supply device (not shown) composed of a gear pump or the like. The spinning device 3 extrude the molten polymer from each spinning hole. Thus, yarns Y are spun from each spinning hole of the spinning device 3.

[0034] A cooling device 10 and an oil-additive yarn guide 11 are provided downstream of the spinning device 3. The cooling device 10 is provided immediately below the spinning device 3. The cooling device 10 includes a plurality of cooling cylinders not shown in the figure. Cooling air is supplied to each cooling cylinder through a cooling air pipe not shown in the figure. The yarn Y passing through the cooling cylinder is cooled and solidified by the cooling air. The oil-additive yarn guide 11 is arranged below the cooling device 10. The oil-additive yarn guide 11 applies oil to each of the yarns Y passing through. The yarns Y to which the oil-additive yarn guide 11 has applied oil are sent to the first floor.

[0035] A thread passing hole 9a for delivering the thread Y to the first floor is formed on the partition floor 9. In addition, a pipe-shaped inter-floor duct 8 is provided upstream and downstream of the partition floor 9 in a manner surrounding the thread passing hole 9a. The inter-floor duct 8 prevents the thread Y from swinging due to external factors such as wind when the thread Y moves from the second floor to the first floor. The inter-floor duct 8 may be provided only on the first floor. In addition, the inter-floor duct 8 may be omitted.

[0036] The wire lowering device 5 is arranged to cross the first floor and the second floor, and lowers the wire Y from the second floor to the first floor. Figure 3 As shown, the wire lowering device 5 includes a lifting mechanism 50 , a cover 53 , a wire holding portion 54 , and a fixing member 55 .

[0037] The lifting mechanism 50 includes a rail 51 and a sliding part 52. The rail 51 is configured to extend in the vertical direction from the first floor to the second floor. The rail 51 extending in the vertical direction means that the length direction of the rail 51 is substantially consistent with the vertical direction. The sliding part 52 is configured to be able to slide along the rail 51. Figure 2 As shown, the lifting mechanism 50 is driven by the power of the wire lowering actuator 59, whereby the sliding portion 52 is lifted and lowered along the track 51. In the present embodiment, the lifting mechanism 50 is a magnet sliding mechanism including a magnet gear. The wire lowering actuator 59 is a motor that rotates the magnet gear. In addition, the lifting mechanism is not limited to the magnet sliding mechanism. For example, the lifting mechanism may also be a ball screw mechanism. In addition, the wire lowering actuator 59 is not limited to a rotary motor, but may also be a linear motor. The wire lowering actuator 59 is controlled by the centralized control device 101, but a dedicated control device for the wire lowering device 5 may also be provided as described above.

[0038] The cover 53 covers at least a portion (in this embodiment, the entire portion) of the rail 51. The cover 53 is provided to prevent thread waste from being easily attached to the rail 51. The detailed structure of the cover 53 will be described later.

[0039] The wire holding part 54 is attached to the sliding part 52. The wire holding part 54 is raised and lowered integrally with the sliding part 52. In the present embodiment, the sliding part 52 is a part that slides along the rail 51 and is a part to which the wire holding part 54 is attached.

[0040] The wire holding portion 54 includes two wire hanging rollers 54a. Each wire hanging roller 54a is, for example, a roller supported to be able to rotate. An annular groove portion along the outer peripheral surface is formed on the outer peripheral surface of the wire hanging roller 54a. The wire holding portion 54 holds the wire Y by allowing the wire Y to enter the groove portion of the wire hanging roller 54a. With this structure, when the wire Y is hooked on the two wire hanging rollers 54a and held, the lifting mechanism 50 moves from the second floor to the first floor, thereby being able to lower the wire Y to the first floor.

[0041] The fixing component 55 is a component that connects the track 51 to the base body 9b and fixes the track 51. In this way, the lifting mechanism 50, the cover 53, the wire holding part 54, etc. can be supported. The base body 9b is a structure or a weight object provided on the partition floor 9. In addition, the base body 9b can also be a frame of a machine provided on the second floor. At least one fixing component 55 is provided. In addition, the fixing component 55 connects the track 51 to the base body 9b via the opening portion 89 provided on the cover 53. In this way, the track 51 can be supported on the base body 9b while being covered by the cover 53.

[0042] The wire hanging device 2 is arranged on the first floor. The wire hanging device 2 performs a wire hanging operation. The wire hanging operation refers to an operation of fixing the wire Y lowered by the wire lowering device 5 to the bobbin B of the winding device 7 after the wire Y is set on the traction part 6. Through the wire hanging operation, the winding device 7 becomes capable of winding the wire Y to form a package P. The wire hanging device 2 includes the above-mentioned wire hanging control device 103, the arm driving motor 21, and the arm 22.

[0043] The arm 22 is a multi-jointed type, and is driven by an arm driving motor 21. The arm driving motor 21 is controlled by the wire hanging control device 103. A wire catching component (not shown) for catching the wire Y is provided at the front end of the arm 22. The wire catching component is, for example, a suction device for attracting the wire Y, or a hook-shaped component for hooking the wire Y. When the arm 22 is driven in a state where the front end of the arm 22 catches the wire Y, the wire Y caught by the wire catching component can be guided.

[0044] The traction unit 6 is arranged on the first floor. The traction unit 6 is used to pull a plurality of yarns Y traveling downward from the second floor. The traction unit 6 includes two godet rollers 61 and 62. In the following description, in the traveling direction of the yarns Y, the godet roller located on the upstream side is referred to as the upstream godet roller 61, and the godet roller located on the downstream side is referred to as the downstream godet roller 62.

[0045] like Figure 2 As shown in FIG. 1 , the upstream guide roller 61 is driven by an upstream guide motor 61 a. The downstream guide roller 62 is driven by a downstream guide motor 62 a. Figure 1 As shown by the dotted line arrow, the downstream godet roller 62 can move between a thread hooking position close to the upstream godet roller 61 and a package forming position located just above the winding device 7. The upstream godet motor 61a and the downstream godet motor 62a are controlled by the winding control device 102.

[0046] The winding device 7 winds up the plurality of yarns Y fed from the drawing section 6 to form a package P. The winding device 7 includes a turret 71 , two bobbin holders 72 , a traverse device 73 , and a touch roller 74 .

[0047] The turntable 71 is rotatably provided. Two bobbin holders 72 are rotatably supported on the turntable 71. Each bobbin holder 72 is formed to be elongated in the front-back direction. The two bobbin holders 72 are arranged on opposite sides of the rotation axis of the turntable 71. The positions of the two bobbin holders 72 are replaced by the rotation of the turntable 71.

[0048] Specifically, the two bobbin holders 72 are respectively located at an upper winding position and a lower standby position. The bobbin holder 72 at the winding position is close to the contact roller 74, and the bobbin holder 72 at the standby position is away from the contact roller 74. A plurality of bobbins B are mounted on each bobbin holder 72. The plurality of bobbins B are arranged along the length direction of the bobbin holder 72.

[0049] The traverse device 73 includes a plurality of traverse guides 73a corresponding to the plurality of bobbins B. Each traverse guide 73a is arranged corresponding to each bobbin B. The traverse guide 73a is driven by a traverse motor 73b that operates according to a control command of the winding control device 102. Each traverse guide 73a reciprocates in a direction parallel to the longitudinal direction of the bobbin holder 72, thereby winding the yarn Y around the bobbin B while traversing.

[0050] The contact roller 74 contacts the outer peripheral surfaces of the plurality of packages P formed on the respective bobbins B, and applies contact pressure to each of the plurality of packages P. The contact roller 74 is driven by the winding motor 70 . The winding motor 70 is controlled by the winding control device 102 .

[0051] Next, the wire lowering operation using the wire lowering device 5 and the wire hanging operation using the wire hanging device 2 will be briefly described.

[0052] In the spinning winding device 1, for example, in the preparation stage before the start of forming the package P, or when the yarn is broken due to some reason, the yarn lowering operation and the yarn hanging operation are performed in order to start (restart) the winding device 7 to wind the yarn Y. In the present embodiment, the yarn lowering operation is performed by the operator operating the yarn lowering device 5. The yarn hanging operation is automatically performed by the yarn hanging device 2.

[0053] First, the operator uses a yarn suction unit such as a suction gun (not shown) to suck and hold the yarns Y spun from the spinning device 3 upstream of the oil yarn guide 11. Then, the operator hooks the yarns Y sucked and held by the yarn suction unit onto the oil yarn guide 11.

[0054] Next, the operator uses a wire hooking tool (not shown) to hook the wire Y between the wire suction section and the oil-containing wire guide 11 onto the wire hooking tool. After that, the operator moves the wire hooking tool so that the wire Y between the wire suction section and the wire hooking tool is located directly below the two wire hooking rollers 54a. When the operator removes the wire hooking tool in this state, the wire Y between the oil-containing wire guide 11 and the wire suction section is hooked onto the two wire hooking rollers 54a. As a result, the wire Y is held by the wire holding section 54.

[0055] After the wire lowering preparation operation is completed, the operator operates an operation switch (not shown) or the like to instruct the start of the wire lowering operation of the wire lowering device 5. As a result, the centralized control device 101 controls the wire lowering actuator 59, and the sliding part 52 moves downward along the track 51. As a result, the wire holding part 54 moves to the handover position on the first floor. Through the above, the wire lowering operation is completed.

[0056] Next, the wire hanging control device 103 controls the arm driving motor 21, thereby the arm 22 is driven so that the front end of the arm 22 is located near the wire hanging roller 54a. Then, the front end of the arm 22 captures the wire Y hooked on the wire hanging roller 54a. After that, the arm 22 is further driven, so that the wire Y is hooked on the traction part 6 (upstream wire guide roller 61 and downstream wire guide roller 62) and multiple fulcrum wire guides 13 in sequence. After that, the arm 22 is further driven, so that the front end of the arm 22 moves to a predetermined position below the bobbin holder 72 located on the upper side, so that the wire Y contacts the bobbin B.

[0057] At the same time as the arm 22 guides the yarn Y to the bobbin B or slightly before, the winding operation of the winding device 7 is started. By winding the yarn Y around the end of the rotating bobbin B, the end of the yarn Y can be fixed to the bobbin B. When the winding operation starts, the traversing yarn guide 73a reciprocates in a direction parallel to the axial direction of the bobbin B in conjunction with the rotation of the bobbin B. During the reciprocating movement of the traversing yarn guide 73a, the yarn Y is hooked on each traversing yarn guide 73a. Thereafter, the yarn Y can be wound around the bobbin B while traversing by the guidance of the traversing yarn guide 73a. As a result, a package P can be formed.

[0058] The process of the wire lowering operation and the wire hanging operation is an example, and at least a part of the operation performed by the operator may be performed by a machine, or at least a part of the operation performed by a machine (eg, the wire hanging device 2) may be performed by the operator.

[0059] Next, refer to Figure 4 The detailed structure and problems of the lifting mechanism 50 of the wire lowering device 5 will be described.

[0060] like Figure 4 As shown, a track groove 51a is formed on the track 51. The sliding protrusion 52a of the sliding part 52 enters the track groove 51a. With this structure, the sliding part 52 can slide smoothly along the track 51. The track groove 51a and the sliding protrusion 52a are just examples, and a protrusion may be provided on the track 51 and a groove may be provided on the sliding part 52. In order to make the sliding part 52 slide smoothly along the track 51, this combined structure including concave and convex is required.

[0061] Here, in the space where the lifting mechanism 50 is arranged, silk scraps generated by the spinning device 3 are scattered. Therefore, in the case where no countermeasures are implemented, silk scraps are easily accumulated in the track groove 51a. Even in the case where the track groove 51a is not provided, silk scraps are accumulated in the concave and convex parts of the combined structure. Moreover, in the present embodiment, the oil applied by the oil guide 11 may be scattered in the space. In this case, since the oil is attached to the track groove 51a, the silk scraps are more likely to accumulate in the track groove 51a. As a result, the sliding protrusion 52a becomes unable to slide smoothly along the track groove 51a. Therefore, the operator needs to stop the wire lowering device 5 and disassemble it as needed to clean the track groove 51a. Hereinafter, this operation is referred to as maintenance. The increase in the frequency of maintenance reduces productivity and becomes a burden for the operator, so it is expected to be improved.

[0062] In addition, as a countermeasure against the accumulation of wire scraps in the track groove 51a, there is a method of, for example, providing a scraper on the sliding portion 52. However, in this method, although the wire scraps can be accumulated, they cannot be removed, and as a result, frequent maintenance is required. In addition, as other countermeasures, there is a method of spraying compressed air to blow away the wire scraps, or providing a suction device to suck the wire scraps. However, in these methods, it is necessary to route the hose that guides the compressed air or the suction flow, or to provide multiple injection ports or suction ports, so the structure becomes complicated. In particular, the track 51 is configured to span between floors, and is therefore longer in the up and down direction, so the required length of the hose becomes longer, and the required number of injection ports or suction ports also increases.

[0063] As another further countermeasure, there is a method of using a telescopic cover disclosed in Patent Document 2 or the like to cover the upper side of the sliding portion 52 and the lower side of the sliding portion 52. However, in the wire lowering device 5, the moving distance of the sliding portion 52 is long, so the required telescopic ratio is large. Therefore, the structure disclosed in Patent Document 2 or the like cannot cope with the wire lowering device 5.

[0064] Considering the above situation, in this embodiment, a cover 53 is provided to cover the rail 51 and expose at least a part of the sliding part 52 to the outside. And the cover 53 is structured to open and close in a manner following the rise and fall of the sliding part 52. The sliding part 52 and the cover 53 are described in detail below.

[0065] like Figure 4 As shown, the sliding part 52 includes a slider 52b, a connecting member 52c, and a hanging member 52d. The slider 52b is a part for realizing sliding. In the present embodiment, a magnet sliding mechanism is adopted, so the slider 52b includes a magnet. In addition, the slider 52b is provided with the above-mentioned sliding protrusion 52a. The connecting member 52c and the hanging member 52d are parts for connecting the slider 52b with the thread holding portion 54.

[0066] As described above, the sliding part 52 is a part that slides along the rail 51 and is a part to which the thread holding part 54 is mounted. Therefore, not only the slider 52b, but also the structure including the slider 52b, the connecting member 52c, and the hanging member 52d is equivalent to the sliding part 52. In addition, the structure of the sliding part 52 of this embodiment is an example, and the shape can be appropriately changed according to the type of lifting mechanism used, the positional relationship with the thread holding part 54, etc.

[0067] The cover 53 is made of fiber and has flexibility. In addition, the cover 53 can block the silk scraps and can be made of various materials as long as the opening and closing mechanism 85 described later can be applied. Figure 5 As shown, the cover 53 includes a cylindrical portion 81 , an upper surface portion 82 , and a lower surface portion 83 .

[0068] The barrel 81 is a cylindrical part that covers the side of the track 51. The barrel 81 covers the side of the track 51, especially the track groove 51a, and is therefore necessary to suppress the accumulation of wire scraps in the track groove 51a. However, the barrel 81 does not have to cover the entire track groove 51a, and may only cover a portion of the track groove 51a (for example, the range in the track groove 51a where wire scraps are easily accumulated, or the range where the sliding part 52 slides frequently). In addition, the cross section of the barrel 81 of this embodiment is circular or elliptical, but the cross section may also be rectangular.

[0069] The upper surface portion 82 is a portion located at the upper end of the cylinder portion 81, and is a portion that closes the upper surface of the cover 53. The upper surface portion 82 covers the upper portion of the track 51. In the present embodiment, the yarn waste is dispersed from the spinning device 3, and the spinning device 3 is located above the track 51. Therefore, by providing the upper surface portion 82, it is easy to suppress the accumulation of yarn waste coming from above on the track 51. In addition, the upper surface portion 82 is not an essential component and can be omitted.

[0070] The lower surface portion 83 is a portion located at the lower end of the cylinder portion 81 and is a portion that closes the lower surface of the cover 53. The lower surface portion 83 covers the lower portion of the track 51. Since the silk scraps are light, they will flutter in the space as long as they are slightly affected by air flow. Therefore, by providing the lower surface portion 83, it is easy to suppress the silk scraps that flutter in the space and come from below from accumulating on the track 51. In addition, the lower surface portion 83 is not an essential component and can be omitted.

[0071] The tube 81 is provided with a slit 84 extending in the up-down direction. The slit 84 is a portion that enables the tube 81 to be opened and closed and separated. In the present embodiment, the slit 84 is provided to be continuous from the upper end to the lower end of the tube 81. However, the slit 84 may also be provided only in a portion of the tube 81 in the up-down direction.

[0072] The cover 53 is further provided with an opening and closing mechanism 85, which opens and closes the slit 84 to form an open portion 86 and a closed portion 87 in the cover 53. The opening and closing mechanism 85 of this embodiment is a zipper mechanism (more specifically, a linear zipper mechanism). The opening and closing mechanism 85 includes a first component 91, a second component 92, and an opening and closing component 93.

[0073] The first component 91 is a protrusion (component) provided on one side (hereinafter referred to as the first side) of the part separated into two parts by the slit 84. The second component 92 is a protrusion (component) provided on the other side (hereinafter referred to as the second side) of the part separated into two parts by the slit 84. The first component 91 and the second component 92 are respectively provided along the slit 84. The first component 91 and the second component 92 can be connected. The range where the first component 91 and the second component 92 are connected corresponds to the closed portion 87, and the range where they are not connected (separated range) corresponds to the open portion 86.

[0074] The opening and closing member 93 can move along the slit 84. The opening and closing member 93 passes through, thereby connecting the first member 91 and the second member 92, or releasing the connection between the first member 91 and the second member 92. In detail, the opening and closing member 93 passes through the range where the first member 91 and the second member 92 are not connected, thereby connecting the first member 91 and the second member 92. The opening and closing member 93 passes through the range where the first member 91 and the second member 92 are connected, thereby releasing the connection between the first member 91 and the second member 92.

[0075] In this embodiment, two opening and closing members 93 are arranged for one slit 84. Thus, the range sandwiched by the two opening and closing members 93 becomes the open portion 86, and the other portion becomes the closed portion 87. Figure 5 As shown, a part of the sliding part 52 is exposed to the outside of the cover 53 via the open part 86. Specifically, a part of the connecting member 52c and the entire hanging member 52d in the sliding part 52 are exposed to the outside of the cover 53. Exposed to the outside means: not covered by the cover 53, for example, there is a part protruding to the outside from the cover 53 when viewed from above or from the side.

[0076] The portion of the sliding portion 52 that passes through the inner boundary of the cover 53 is the connecting member 52c. The portion that passes through the inner and outer boundaries of the cover 53 preferably has smaller dimensions in the up-down direction and the width direction. As a result, the size of the open portion 86 can be reduced, so it is difficult for wire scraps to enter the interior of the cover 53. In this regard, in the present embodiment, the connecting member 52c has a smaller dimension in the up-down direction and a smaller dimension in the width direction than other portions (slider 52b, suspension member 52d). In addition, the width direction refers to a direction orthogonal to the up-down direction, and is a direction orthogonal to the direction connecting the inside and outside of the cover 53.

[0077] In addition, the opening and closing component 93 disposed on the upper side of the two opening and closing components 93 is fixed to the upper surface of the sliding portion 52 (specifically, the connecting component 52c). The opening and closing component 93 disposed on the lower side is fixed to the lower surface of the sliding portion 52 (specifically, the connecting component 52c). There are various fixing methods, but for example, the operating piece of the opening and closing component 93 can be fixed to the connecting component 52c via a relay component. In addition, the operating piece of the opening and closing component 93 can also be changed to a dedicated large operating piece, and the operating piece can be directly fixed to the connecting component 52c.

[0078] The boundary between the open portion 86 and the closed portion 87 formed by the opening and closing member 93 disposed on the upper side is referred to as the upper boundary. The boundary between the open portion 86 and the closed portion 87 formed by the opening and closing member 93 disposed on the lower side is referred to as the lower boundary. Figure 5 The first height shown is lowered to Figure 6 The condition of the second height is shown.

[0079] As the slide 52 descends, the upper opening and closing member 93 descends together with the slide 52. As a result, the upper boundary descends together with the slide. In addition, as the slide 52 descends, the lower opening and closing member 93 also descends together with the slide 52. As a result, the lower boundary also descends together with the slide. The same is true when the slide 52 ascends.

[0080] That is, in this embodiment, the open portion 86 moves integrally with the sliding portion 52. Thus, the rail 51 can be covered by the cover 53, and the sliding portion 52 (i.e., the wire holding portion 54) can be slid up and down while reducing the range of the open portion 86. By reducing the open portion 86, the amount of wire scraps that enter from the open portion 86 can be reduced. Therefore, the maintenance frequency can be reduced.

[0081] In the present embodiment, a linear fastener mechanism is used as the opening and closing mechanism 85 , but this is just an example, and other opening and closing mechanisms 85 as described below can be used.

[0082] For example, a sealing structure used in a sealed resin bag or the like can be used as the opening and closing mechanism 85. The first component of the sealing structure is arranged on the first side separated by the gap, and includes a groove portion along the gap. The second component is arranged on the second side separated by the gap, and includes a protrusion that enters the groove portion. The opening and closing components are arranged throughout the first component and the second component, and the first component and the second component can be connected by moving them along the gap. In addition, in this sealing structure, the opening and closing components are used to connect the first component and the second component, but cannot be used to release the connection. Therefore, by contacting and pressing the connecting portion of the first component and the second component when the sliding part 52 slides, the connection between the first component and the second component is released. Through the above, the upper and lower boundaries of the cover 53 can be moved together with the sliding of the sliding part 52. In addition, except for the above-mentioned opening and closing mechanism, it is the same structure as the above-mentioned embodiment.

[0083] As another configuration, for example, a magnetic sheet mechanism can be used as the opening and closing mechanism 85. The magnetic sheet mechanism refers to a configuration in which two parts are connected using a sheet-shaped magnet. When the magnetic sheet mechanism is used, the first component is a magnetic sheet arranged on the first side separated by a gap and arranged along the gap. The second component is a magnetic sheet arranged on the second side separated by a gap and arranged along the gap. In the magnetic sheet mechanism, the first component and the second component will be engaged only by bringing the first component and the second component close to each other. Therefore, in the magnetic sheet mechanism, the opening and closing component is not an essential component. The first component and the second component are configured to be engaged in the initial position. Then, the sliding portion 52 slides, and the sliding portion 52 contacts the engaging portion of the first component and the second component, thereby separating the first component from the second component. In addition, the sliding portion 52 leaves the separating portion of the first component and the second component, thereby returning the first component and the second component to the initial position, and thus the first component and the second component are engaged. Through the above, the upper and lower boundaries of the cover 53 can be moved together with the sliding of the sliding portion 52. In addition, the configuration other than the above-mentioned opening and closing mechanism is the same as that of the above-mentioned embodiment.

[0084] In the present embodiment, both the upper boundary and the lower boundary are moved together with the sliding of the sliding part 52. Here, when considering the situation where the wire scraps fall from above, it is relatively important to move the upper boundary together with the sliding part 52. On the other hand, when considering the direction from which the wire scraps come, the point that the open portion 86 below the sliding part 52 is slightly covered by the sliding part 52 itself, etc., the importance of moving the lower boundary together with the sliding part 52 is relatively low. Therefore, the structure for moving the lower boundary (that is, the structure in which the lower opening and closing member 93 is provided and fixed to the sliding part 52) ​​may be omitted.

[0085] As described above, the yarn lowering device 5 of the present embodiment lowers the yarn Y from the second floor where the spinning device 3 for spinning the yarn Y is provided to the first floor where the winding device 7 for winding the yarn Y is provided. The yarn lowering device 5 includes a yarn holding portion 54, a track 51, a sliding portion 52, and a cover 53. The yarn holding portion 54 holds the yarn Y spun by the spinning device 3. The track 51 is provided so as to extend in the up-down direction from the first floor to the second floor. The sliding portion 52 is connected to the yarn holding portion 54 and slides along the track 51 together with the yarn holding portion 54. The cover 53 covers at least a portion of the side surface of the track 51. The cover 53 is provided with a slit 84 and an opening and closing mechanism 85. The slit 84 extends in the up-down direction. The opening and closing mechanism 85 opens and closes the slit 84 to form an open portion 86 and a closed portion 87 in the cover 53. At least a portion of the sliding portion 52 is exposed to the outside of the cover 53 via the open portion 86 of the cover 53. When the boundary between the open portion 86 for exposing the sliding part 52 and the closed portion 87 on the upper side thereof is referred to as the upper side boundary, the sliding part 52 slides, thereby acting on the opening and closing mechanism 85, and the upper side boundary moves together with the sliding part 52.

[0086] Thus, the upper boundary moves following the sliding of the sliding portion 52, so that the open portion 86 is less likely to be generated on the upper side of the sliding portion 52. As a result, wire scraps are less likely to accumulate on the rail 51, so that the maintenance frequency of the rail 51 can be reduced.

[0087] In the wire lowering device 5 of this embodiment, when the boundary between the open part 86 for exposing the sliding part 52 and the closed part 87 below it is called the lower side boundary, the sliding part 52 slides, thereby the sliding part 52 acts on the opening and closing mechanism 85, and the lower side boundary moves together with the sliding part 52.

[0088] Thus, the lower boundary moves following the sliding of the sliding portion 52, so that an open portion is less likely to be formed on the lower side of the sliding portion 52. As a result, wire scraps are less likely to accumulate on the rail 51, so the maintenance frequency of the rail 51 can be further reduced.

[0089] In the wire dropping device 5 of the present embodiment, the cover 53 has a cylindrical shape and the upper surface is closed.

[0090] This makes it difficult for wire scraps to enter from the upper surface of the cover 53. As a result, wire scraps are less likely to accumulate on the rail 51, so the maintenance frequency of the rail 51 can be further reduced.

[0091] In the wire dropping device 5 of the present embodiment, the slit 84 of the cover 53 is continuous from the upper end to the lower end of the cover 53 .

[0092] Thereby, even when the movable range of the slide portion 52 is large, it is possible to cope with the situation.

[0093] The wire lowering device 5 of this embodiment includes a fixing member 55 that connects the rail 51 and the base body 9b to fix the rail 51. The cover 53 is provided with an opening 89 in a portion other than the slit 84. The fixing member 55 connects the rail 51 and the base body 9b via the opening 89.

[0094] This makes it possible to achieve both fixation of the rail 51 and suppression of accumulation of thread scraps on the rail 51 .

[0095] In the wire lowering device 5 of the present embodiment, the opening and closing mechanism 85 includes a first component 91, a second component 92, and an opening and closing component 93. The first component 91 is provided along the slit 84 at a portion of the first side separated by the slit 84. The second component 92 is provided along the slit 84 at a portion of the second side separated by the slit 84. The opening and closing component 93 connects the first component 91 and the second component 92. The opening and closing component 93 is fixed to the sliding portion 52, and the opening and closing component 93 moves integrally with the sliding portion.

[0096] This makes it possible to easily realize a configuration in which the upper boundary moves as the sliding portion 52 slides.

[0097] In the wire lowering device 5 of the present embodiment, the opening and closing mechanism 85 includes a first component 91 and a second component 92. The first component 91 is provided along the slit 84 at a portion of the first side separated by the slit 84. The second component 92 is provided along the slit 84 at a portion of the second side separated by the slit 84 and can be engaged with the first component 91. The first component 91 and the second component 92 are separated by the sliding portion contacting the engagement portion between the first component 91 and the second component 92. The first component 91 and the second component 92 are engaged by the sliding portion leaving the separation portion between the first component 91 and the second component 92.

[0098] This makes it possible to more easily realize a configuration in which the upper boundary is moved as the sliding portion 52 slides.

Claims

1. A wire lowering device, which lowers the wire from the second floor of the spinning device where the spinning wire is arranged to the first floor of the winding device where the winding wire is arranged, characterized in that: have: A thread holding unit, for holding the thread spun by the spinning device; A track is arranged to extend from the first floor to the second floor along the up-down direction; a sliding portion connected to the wire holding portion and sliding along the track together with the wire holding portion; as well as a cover covering at least a portion of a side portion of the track, The cover is provided with: The gap extends in the up-down direction; as well as The opening and closing mechanism opens and closes the slit to form an open portion and a closed portion in the cover, At least a portion of the sliding portion is exposed to the outside of the cover via the open portion of the cover, When the boundary between the open portion for exposing the sliding portion and the closed portion above the open portion is referred to as an upper boundary, The sliding portion slides, thereby acting on the opening and closing mechanism, so that the upper boundary moves together with the sliding portion.

2. The wire lowering device according to claim 1, characterized in that: When the boundary between the open portion for exposing the sliding portion and the closed portion below the open portion is referred to as a lower boundary, The sliding portion slides, thereby acting on the opening and closing mechanism, so that the lower boundary moves together with the sliding portion.

3. The wire lowering device according to claim 1 or 2, characterized in that: The cover is in a cylindrical shape, and the upper surface is closed.

4. The wire lowering device according to any one of claims 1 to 3, characterized in that: The slit of the cover is continuous from the upper end to the lower end of the cover.

5. The wire lowering device according to any one of claims 1 to 4, characterized in that: The wire lowering device includes a fixing member for connecting the rail to the base body to fix the rail. The cover is provided with an opening at a portion other than the slit. The fixing member connects the rail and the base body via the opening.

6. The wire lowering device according to any one of claims 1 to 5, characterized in that: The opening and closing mechanism comprises: A first member, a portion of the first side separated by the slit being disposed along the slit; a second member, the portion of the second side separated by the slit being disposed along the slit; as well as an opening and closing member, connecting the first member and the second member, The opening and closing member is fixed to the sliding portion, and the opening and closing member moves integrally with the sliding portion.

7. The wire lowering device according to any one of claims 1 to 5, characterized in that: The opening and closing mechanism comprises: A first member, a portion of the first side separated by the slit being disposed along the slit; and a second component, the portion of the second side separated by the slit being disposed along the slit and being engageable with the first component; The sliding portion comes into contact with a joint between the first component and the second component, thereby separating the first component from the second component. The first member and the second member are joined to each other by the sliding portion moving away from the separation point between the first member and the second member.

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