JP5033128B2 - Splicer device cleaner - Google Patents

Description

  The present invention relates to a cleaner device provided in a splicer device that twists together ends of different yarns.

2. Description of the Related Art Conventionally, splicers such as spun yarn have been used with a splicer device that superimposes the ends of two yarns and applies a compressed fluid such as air to the overlapped portion (for example, Japanese Patent Application Laid-Open No. 2004-27463). No. publication). In piecing with a splicer device, fiber dust is generated when piecing and cutting the yarn with a head. In a textile machine for producing spun yarn, a large number of spinning units are arranged and simultaneously spun. A track is provided along the arrangement of the spinning units, and a work carriage that moves on the track to maintain the spinning unit is also used. The yarn splicing device is provided in a work carriage, and the work carriage is also provided with a cleaner. The spinning unit that needs to be spliced due to yarn breakage or the like stops, and the splicing is performed by moving on the track to the position of the spinning unit where the work carriage is stopped. The cleaner sucks and removes the fiber dust generated at the time of piecing and the fiber dust generated by spinning together. In the working carriage, the spinning unit is connected to a duct provided for the entire spinning machine for each position of each spinning unit, and suction force is also used for suction removal of fiber dust as well as capturing by suction of the yarn end. The cleaner performs a cleaning operation on the entire interior of the work carriage (see, for example, Japanese Patent Application Laid-Open Nos. 2004-338837 and 2005-171434).
When the yarn splicing device is provided in the winding unit, a configuration is also disclosed in which a suction removal mechanism is provided around the air blowing portion of the yarn splicing (see, for example, Japanese Patent Application Laid-Open No. 2005-112551). However, this yarn splicing device is an aqua splicer that performs splicing by containing liquid in compressed air, and the object to be removed by suction is liquid.
While a textile machine such as a spinning device having a large number of spinning units is a relatively large device, the frequency of occurrence of a situation requiring yarn splicing is relatively small. In a knitting machine, a knitted fabric is basically knitted with a single knitting yarn. Therefore, if the knitting yarn can be switched by piecing, the variety of knitted fabrics to be knitted can be increased. However, when the splicer device is applied for piecing in a knitting machine, it is necessary to efficiently suck and remove the generated fiber dust. When a splicer device is installed in a knitting yarn supply path in a knitting machine, a cleaner for cleaning the splicer device is also required to be made compact.
A suction removal mechanism such as that disclosed in Japanese Patent Application Laid-Open No. 2005-112551 removes liquid such as water to prevent the liquid from being scattered and prevent a malfunction from occurring in an electronic component or a mechanical component. Is the purpose. As a component for this purpose, it has a “shielding mechanism that regulates the scattering direction of compressed air and liquid” and a “suction mechanism that sucks compressed air and liquid and discharges them outside the machine”. The starting time of suction is simultaneously or slightly delayed with respect to the starting time.
However, there is no device capable of efficiently sucking fiber dust as a cleaner device of a splicer device to be mounted on a knitting machine or the like. A device suitable as a cleaner device for a splicer device is desired.

An object of the present invention is to provide a cleaner device for a splicer device that is provided in the splicer device and can efficiently suction and remove fiber dust.
The present invention relates to a splicer having a yarn splicing head that exposes a yarn to a compressed fluid flow and splicing, a base that supports the splicing head, and a yarn guide lever that guides the yarn to be spliced to the splicing head. A cleaner device that is provided in the device and sucks and removes fiber dust generated when piecing,
A suction head supported by the base of the splicer device and provided close to the splicing head;
A cover body for covering the yarn splicing head and the suction head and forming a closed space when the yarn splicing is performed at least by the yarn splicing head;
The cover body is a cleaner device for a splicer device that forms the closed space in cooperation with a yarn guide lever of the splicer device.
In the present invention, it is preferable that the cover body forms the closed space in cooperation with the yarn guide lever and the base of the splicer device.
In the present invention, the splicer device preferably further includes an opening / closing mechanism that closes a gap formed in the closed space formed by the cover body and the yarn guide lever of the splicer device.
In the present invention, it is preferable that the suction head starts suction before supplying the compressed fluid to the yarn splicing head.
Moreover, in this invention, it is preferable that a cover body has a hinge part fixed to a base, and the part which can be angularly displaced connected with this hinge part .

Objects, features, and advantages of the present invention will become more apparent from the following detailed description and drawings.
FIG. 1 is a system diagram showing a schematic configuration of a cleaner 1 according to an embodiment of the present invention.
FIG. 2 is a perspective view showing the splicer device 2 with the cover body 70 removed.
FIG. 3 is a perspective view showing the splicer device 2 with the cover body 70 removed.
FIG. 4 is a side view showing the splicer device 2 except for the cover body 70.
FIG. 5 is a front view showing the splicer device 2 excluding the cover body 70.
FIG. 6 is a perspective view showing the splicer device 2 including the cover body 70 as viewed obliquely from above.
FIG. 7 is a perspective view showing the splicer device 2 including the cover body 70 as viewed obliquely from below.
8A and 8B are side views showing the splicer device 2.
FIG. 9 is a perspective view showing the splicer device 2 as viewed obliquely from above.
FIG. 10 is a perspective view showing the splicer device 2 as viewed obliquely from above.
FIG. 11 is an enlarged cross-sectional view showing a part of the partition wall 80, the cover body 70, and the yarn guide lever 44 as viewed by cutting along a virtual plane perpendicular to the vertical direction, including the cross-sectional line AA of FIG. It is.
FIG. 12 is a diagram showing a schematic internal configuration of the suction nozzle 12.
FIG. 13 is a diagram illustrating a schematic configuration in which the splicer device 2 with the cleaner 1 is attached to the flat knitting machine 60.
FIG. 14 is a diagram illustrating a schematic configuration in which the splicer device 2 with the cleaner 1 is attached to the flat knitting machine 60.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a system diagram showing a schematic configuration of a cleaner 1 according to an embodiment of the present invention. A cleaner 1 that is a cleaner device is provided in a splicer device 2 that performs piecing. The splicer device 2 is provided in the flat knitting machine 3 and is used for switching by piecing while measuring a part of the knitting yarn used for knitting the knitted fabric. The splicer device 2 includes a splice nozzle 4 that is a yarn splicing head, and the splice nozzle 4 exposes the yarn to a compressed air flow that is a compressed fluid flow to splice the yarn. The cleaner 1 is used to suck and remove fiber dust generated when splicing with the splicer device 2.
The cleaner 1 includes a suction 5 and a cover body 70. The suction 5 is a suction head provided close to the splice nozzle 4. The suction 5 sucks fiber dust together with the surrounding air. The cover body 70 is provided so as to cover the splice nozzle 4 and the suction 5, and forms a space 71 in which the splice nozzle 4 and the suction 5 are disposed. This space 71 is a space that is in a closed state at least when splicing with the splice nozzle 4. The state in which the space 71 is closed may be in a sealed state, but as in the present embodiment, the space 71 communicates with an external space through a gap between parts constituting the splicer device 2 or a hole formed in the part. It may be in a state. That is, the closed state is a state in which the space 71 is covered and the inflow and outflow of air inside and outside the space 71 is suppressed. The suction 5 sucks the fiber dust existing in the space 71 by sucking the air in the space 71 including the air discharged from the splice nozzle 4.
9 and 10, the splicer device has an opening / closing mechanism 100 configured to be able to open and close a gap formed in the closed space. The state where the gap of the closed space is closed by the opening / closing mechanism 100 may be a sealed state, or may be a state where a minute gap communicating with the external space is formed. Therefore, in the state where the gap is closed, the inflow and outflow of air inside and outside the inner space 71 of the cover body is further suppressed compared to the state before the gap is closed.
The suction 5 sucks using compressed air supplied from a compressed air supply source 55 supplied to the splice nozzle 4. The splice nozzle 4 is connected to a supply source 55 by a first supply pipe 15 and can supply compressed air from the supply source 55. The suction 5 is connected to the dust box 10 by a discharge pipe 14. A suction nozzle 12 that is a component for generating a negative pressure is interposed in the discharge pipe 14. The suction nozzle 12 is connected to the supply source 55 by the second supply pipe 17 and can supply compressed air from the supply source 55. The suction nozzle 12 injects compressed air into the discharge pipe 14 in the direction toward the dust box 10, and generates an air flow from the suction 5 toward the dust box 10 in the discharge pipe 14. As a result, a negative pressure is generated in the suction 5, and the suction 5 sucks fiber dust by this negative pressure.
A first electromagnetic valve 31 is interposed in the first supply pipe 15. The first electromagnetic valve 31 is controlled by the control unit 30 to open and close the first supply pipe 15 and to control the supply and stop of the supply of compressed air to the splice nozzle 4. A second electromagnetic valve 32 is interposed in the second supply pipe 17. The second electromagnetic valve 32 is controlled by the control unit 30 to open and close the second supply pipe 17 and control supply and stop of supply of compressed air to the suction nozzle 12.
As shown in FIGS. 9 and 10, the opening / closing mechanism 100 includes an air cylinder 101 that is operated by compressed air supplied from a supply source 55, an opening / closing plate 102 and a thread presser plate 103 that are driven to be displaced by the air cylinder 101. It is realized including. The air cylinder 101 is configured to be switchable between a state in which the yarn is held and a state in which the holding of the yarn is released by driving the yarn presser plate 103 to be displaced by being controlled by the control unit 30. Further, the opening / closing plate 102 is driven to be displaced so that it can be switched between a closed state in which the gap between the cover body 70 and the yarn guide lever 44 is closed and an open state in which the gap is opened. The air cylinder 101 drives the thread retainer plate 103 and the opening / closing plate 102 to be displaced in the thickness direction of the partition wall 80.
Therefore, the control unit 30 can perform ON / OFF control of the splicing at the splice nozzle 4 and the suction at the suction 5 respectively. The cleaner 1 includes a discharge pipe 14, a second supply pipe 17, a suction nozzle 12, a second electromagnetic valve 32, and a control unit 30 in addition to the suction 5 and the cover body 70. Further, the controller 30 can control the open / close state of the gap between the cover body 70 and the thread guide lever 44 by the opening / closing mechanism 100 and the thread presser.
2 and 3 are perspective views showing the splicer device 2 with the cover body 70 removed. FIG. 2 shows a state before starting the yarn splicing operation. FIG. 3 shows a state near the end of the yarn splicing operation. 2 and 3 show some of the yarns with dashed lines, and omit the other yarns. The splicer device 2 can select at least one knitting yarn 90a by the yarn selection unit 41 from a plurality of knitting yarns 90 supplied from above, and can switch to the knitting yarn 90b in use. In the present embodiment, the yarn supply side is the upper side and the yarn use side is the lower side, but the arrangement of the splicer device is not limited to this.
The splicer device 2 includes a yarn holder 42, a yarn selection unit 41, a splice nozzle 4, a yarn guide lever 44, a first drive unit 11, a cutter 47, a yarn clamp 91, a second drive unit 13, A thread holding plate 103, an opening / closing mechanism 100, and a base 81 are provided. The yarn holder 42 and the yarn holding plate 103 hold the tip portion of the knitting yarn other than the knitting yarn 90b in use among the plurality of yarns. The yarn selection unit 41 selects a knitting yarn 90a to be spliced from the knitting yarns held by the yarn holder 42. The splice nozzle 4 compresses the knitting yarn 90a selected by the yarn selecting section 41 and the knitting yarn 90b in use in a groove formed from an inlet on the opposite side to the yarn holding 42 to an outlet on the yarn holding side. Join together with the flow of yarn and splice. The yarn guide lever 44 hangs the knitting yarn 90 a selected by the yarn selection unit 41 and guides it to the entrance of the groove of the splice nozzle 4. The first drive unit 11 drives the yarn guide lever 44. The cutter 47 cuts the used knitting yarn 90b to be spliced and the selected knitting yarn 90a in the vicinity of the outlet of the groove of the splice nozzle 4. The second drive unit 13 drives the cutter 47 and the yarn clamp 91 so as to interlock with the yarn guide lever 44. The opening / closing mechanism 100 drives and displaces the thread presser plate 103.
The base 81 directly or indirectly supports the yarn holder 42, the yarn pressing plate 103, the splice nozzle 4, the yarn guide lever 44, the cutter 47, the yarn clamp 91, the first drive unit 11 and the second drive unit 13. The base 81 has a partition wall 80 formed in a plate shape. The partition wall 80 extends vertically and horizontally, and is a wall that partitions the front and rear. The base 81 supports the yarn holder 42, the splice nozzle 4, the yarn guide lever 44, the cutter 47, and the yarn clamp 91 on the front side of the partition wall 80. In the base 81, the first drive unit 11 and the second drive unit 13 are disposed on the back side of the partition wall 80. The base 81 is formed in a substantially plate shape parallel to the partition wall 80, and supports the separator 43 disposed at a distance from the partition wall 80 in front of the partition wall.
The yarn guide lever 44 is driven by the first drive unit 11 to be displaced by a swing angle about an axis extending in the thickness direction of the partition wall 80. Further, the yarn guide lever 44 is angularly displaced, and the angular displacement is made closer to the partition wall 80 than the separator 43. The yarn guide lever 44 is formed in a substantially U shape, is configured to be angularly displaceable around the proximal end portion, and hooks the knitting yarn 90a selected by the distal end portion 44a. The yarn guide lever 44 hooks the knitting yarn 90b in use by a side wall projection 44b formed on the side surface near the base end.
The knitting yarn other than the knitting yarn 90b in use, that is, the leading end of the knitting yarn that is in a standby state without being used is held by the yarn holder 42. Waiting knitting yarns other than the knitting yarn 90b in use are held on the front side of the separator 43, and the knitting yarn 90b in use passes through the back side of the separator 43 and is supplied downward.
As shown in FIG. 2, when the knitting yarn 90 b in use is switched to the knitting yarn 90 a selected by the yarn selection unit 41, the knitting yarn 90 a selected by the yarn selection unit 41 is drawn toward the back side of the separator 43. In this state, by angularly displacing the yarn guide lever 44 disposed on the back side of the separator 43, the selected knitting yarn 90a is hooked by the tip end portion 44a of the yarn guide lever 44 as shown in FIG. Then, it is guided downward on the back side of the separator 43. Further, the knitting yarn 90 b in use can be hooked by the side wall protrusion 44 b of the yarn guide lever 44 and moved to the front side of the separator 43.
Grooves are formed in the splice nozzle 4 disposed below the separator 43 and the thread holder 42. The selected knitting yarn 90a guided downward by the yarn guide lever 44 is introduced into the splice nozzle 4 and fits into the groove. The knitting yarn 90 b in use is blocked by the yarn guide 46 from being introduced into the splice nozzle 4 during knitting. Before piecing, the suction 5 sucks the selected knitting yarn 90a and the knitting yarn 90b in use. The knitting yarn 90b in use and the selected knitting yarn 90a are guided to a predetermined yarn path by the yarn guide lever 44, so that the knitting yarns 90a and 90b are introduced into the groove of the splice nozzle 4, and the groove Fit into. Further, when each yarn is sucked by the suction 5, the opening / closing mechanism 100 closes the gap between the cover body 70 and the yarn guide lever 44. At the same time, the knitting yarn 90 b in use and the standby yarn are held above the yarn holder 42 by the yarn holding plate 103. Of the yarns held by the yarn holder 42, the tip protruding downward from the yarn holder 42 is sucked by the suction 5.
The second drive unit 13 drives the yarn clamp 91 to clamp the selected knitting yarn 90 a and the knitting yarn 90 b in use below the splice nozzle 4. Further, the cutter 47 is driven by the second drive unit 13 to cut the selected knitting yarn 90a and the knitting yarn 90b in use. Next, the selected knitting yarn 90a and the knitting yarn 90b in use are exposed to a compressed air flow flowing through the groove when the compressed air is jetted into the groove in a state where the selected knitting yarn 90b is fitted in the groove, and the yarn splicing Is done. Further, at the time of yarn joining, the opening / closing mechanism 100 closes the gap between the cover body 70 and the yarn guide lever 44, so that fiber dust can be prevented from leaking from the gap.
After the selected knitting yarn 90a and the knitting yarn 90b in use are spliced, the yarn holding by the yarn holding 42 is released. The selected end of the knitting yarn 90a is released from the yarn holder 42 and is sucked into the suction 5 as yarn waste. At this time, each knitting yarn is held by the yarn pressing plate 103. Next, by holding each knitting yarn by the yarn holder 42, the portion on the supply source side of the cut knitting yarn 90a is held by the yarn holder 42 together with the other knitting yarns on standby, and is held by the yarn holding plate 103. Yarn retention is released.
When piecing in this way, the selected knitting yarn 90a is also cut together with the knitting yarn 90b in use, and the portion between the splice nozzle 4 and the yarn holder 42 is cut off to become yarn waste. In other words, yarn waste is generated by cutting the end of the joined portion of the joined knitting yarn. Further, when the knitting yarns 90a and 90b are exposed to the compressed air flow in the groove of the splice nozzle 4, the fibers are detached from the yarn.
The suction 5 is disposed between the splice nozzle 4 and the yarn holder 42 in order to suck the fiber dust including the fibers and yarn waste that are separated from the yarn. The cutter 47 is disposed between the splice nozzle 4 and the suction 5. The thread retainer plate 103 is disposed closer to the yarn supply side than the thread holder 42. Further, the splice nozzle 4 is disposed between the cutter 47 and the thread clamp 91.
The thread selection unit 41 is provided on the uppermost part of the base 81, and a partition wall 80 is provided below the thread selection unit 41. The splice nozzle 4, the suction 5, the thread holding 42, the separator 43, the thread guide lever 44, the thread guide 46, the cutter 47, the thread clamp 91, and the thread presser plate 103 are arranged on the front side that is the front side with respect to the partition wall 80. The The first and second electromagnetic valves 31, 32, the drive unit that drives the thread guide lever 44, the cutter 47, and the thread presser plate 103, and the solenoid valve that controls the supply of working air that drives the thread holding 42, It is arranged on the back side that is the rear side.
FIG. 4 is a side view showing the splicer device 2 except for the cover body 70. FIG. 5 is a front view showing the splicer device 2 excluding the cover body 70. FIG. 4 shows the outer shape of the cover body 70 by a region 95 surrounded by a two-dot chain line. FIG. 6 is a perspective view showing the splicer device 2 including the cover body 70 as viewed obliquely from above. FIG. 7 is a perspective view showing the splicer device 2 including the cover body 70 as viewed obliquely from below. 4 to 7 show a state before starting the yarn splicing operation.
The cover body 70 is provided on the front side of the partition wall 80 and covers only the splice nozzle 4 and the suction 5 and the components provided in the vicinity of the splice nozzle 4 and the suction 5. As shown in FIG. 4, the cover body 70 is arranged with a space in the thickness direction of the partition wall 80 with respect to the partition wall 80. As shown in FIG. 5, the cover body 70 is formed in a box shape that opens to the partition wall 80 side. The cover body 70 includes an upper surface portion 74a, a bottom surface portion 74b, a partition facing portion 74c, a first side surface portion 74d, and a second side surface portion 74e.
The upper surface portion 74 a is disposed above the suction nozzle 12. The bottom surface portion 74b is disposed below the thread clamp 91. The partition facing portion 74 c is disposed on the front side of the partition wall 80, with respect to the partition wall 80, with respect to the covering objects 4, 12, 47 including at least the splice nozzle 4, the suction nozzle 12, and the cutter 47. The partition facing portion 74c is connected to the upper surface portion 74a at the upper end portion and is connected to the bottom surface portion 74b at the lower end portion. The first side surface portion 74d and the second side surface portion 74e are arranged at an interval in the left-right direction perpendicular to the thickness direction and the up-down direction of the partition wall 80, and the covering objects 4, 12, 47 are arranged therebetween. The The side portions 74d and 74e are connected to the partition facing portion 74c on the front side of the partition wall 80. The second side surface portion 74 e is formed with a through-hole through which a part of the suction, the second driving unit 13 and the like are inserted, and is fixed to the partition wall 80.
A part of the splice nozzle 4, the suction nozzle 12, and the cutter 47 is covered with the cover body 70 and disposed in the space 71 of the cover body 70, but the thread holder 42, the separator 43, etc. Arranged outside. Thus, the cover body 70 covers the splice nozzle 4 and the suction 5 so that the volume of the internal space 71 is as small as possible.
As shown in FIG. 7, the cover body 70 has a hinge portion 73 that can be angularly displaced compared to the remaining portion. Of the cover body 70, the second side surface portion 74 e and the partition facing portion 74 c are connected via a hinge portion 73. The hinge portion 73 connects the partition facing portion 74c to the second side surface portion 74c so as to be angularly displaceable. In the cover body 70, the partition facing portion 74c is angularly displaced with respect to the second side surface portion 74e, so that it is possible to easily switch between the state of covering the covering target bodies 4, 12, 47 and the state of not covering. In a state where the cover body 70 covers the objects to be coated 4, 12, and 47, the groove of the splice nozzle 4 is opened to the first side surface portion 74d side, and the suction nozzle 12 is arranged with the suction port facing the other side. Has been. The hinge portion 73, the partition facing portion 74c, and the like are each realized by a synthetic resin that is integrally molded.
8A and 8B are side views showing the splicer device 2. 8A and 8B show a state where the cover body 70 is attached, FIG. 8A shows a state before piecing, and FIG. 8B shows a state after piecing.
The cover body 70 covers part of the splice nozzle 4 and the suction 5 as described above. Further, as shown in FIGS. 4 and 8A, the internal space 71 formed by the cover body 70 has a groove-like shape extending downward from above through the region on the partition wall 80 side with respect to the splice nozzle 4 and the suction 5. The opening 77 opens outward. When piecing, the yarn guide lever 44 hooks the selected knitting yarn and guides it to the splice nozzle 4. Therefore, when piecing by the splice nozzle 4, the yarn guide lever 44 has a groove as shown in FIG. 8B. It fits into the opening 77 and closes the opening 77. The yarn guide lever 44 substantially blocks the upper region, the lower region, and the left-right direction region of the opening 77.
The cover body 70 may be configured to include a portion 73 c that covers the splice nozzle 4 and the suction 5 from the rear in the rear side direction, or may be configured to use a part of the partition wall 80. That is, the splice nozzle 4 and the suction 5 are covered from behind by at least one of the cover body 70 and the partition wall 80. In the present embodiment, when the yarn splicing is performed by the splice nozzle 4, the cover body 70 forms a closed space 71 in cooperation with the yarn guide lever 44 and the partition wall 80. By providing the base 81 with a portion 73c that covers the splice nozzle 4 and the suction 5 from the rear, the volume of the space 71 can be reduced, and a gap communicating with the outside can be reduced. Further, the thread guide lever 44 is formed with a plate-shaped shielding portion 78. The shielding part 78 extends in parallel with the partition wall 80. It faces the opening of the cover body 70 from behind. As a result, the volume of the space 71 can be reduced, and a gap communicating with the outside can be reduced, thereby preventing fiber dust from leaking through the gap. However, the same effect can be obtained even in a configuration in which the portion 73c covering the splice nozzle 4 and the suction 5 is not provided and only the shielding portion 78 is formed.
The suction 5 is controlled by the control unit 30 so as to start suction before the compressed fluid is supplied to the splice nozzle 4. First, suction by the suction 5 is started and an air flow toward the suction 5 is generated in the space 71, and then air is discharged from the splice nozzle 4.
9 and 10 are perspective views showing the splicer device 2 as viewed obliquely from above. FIG. 9 shows a state in which the gap of the cover body 70 is opened by the opening / closing plate 102, and FIG. 10 shows a state in which the gap of the cover body 70 is closed by the opening / closing plate 102. FIG. 11 is an enlarged cross-sectional view showing a part of the partition wall 80, the cover body 70, and the yarn guide lever 44 as viewed by cutting along a virtual plane perpendicular to the vertical direction, including the cross-sectional line AA of FIG. It is. In FIG. 11, the opening / closing plate 102a in a state in which the opening is closed is indicated by a two-dot chain line.
In this embodiment, the opening / closing mechanism 100 that drives the thread retainer plate 103 drives the displacement retainer 103 for performing the splicing operation and also drives the opening / closing plate 102. The open / close plate 102 and the thread presser plate 103 are integrally formed, and the open / close plate 102 and the thread presser plate 103 are simultaneously driven by the air cylinder 101.
As shown in FIG. 9, in a state where a gap is formed between the thread presser plate 103 and the separator 43 and the thread retainer plate 103 releases the holding of the thread, the opening / closing plate 102 is formed on the cover body 70. Open the gap. As shown in FIG. 10, when the thread retainer plate 103 is driven to displace and a gap is closed between the thread retainer plate 103 and the separator 43, the thread retainer plate 103 cooperates with the separator 43 and the thread retainer 42. And the yarns extending between the yarn selection unit 41 and the yarn selection unit 41. At this time, the opening / closing plate 102 is displaced together with the thread retainer plate 103 to close the gap of the cover body 70. Here, the gap of the cover body 70 is a gap between the partition wall 80, the cover body 70, and the yarn guide lever 44, as shown in FIG. When the opening / closing plate 102 is displaced in the thickness direction of the partition wall 80, the gap is narrowed.
When the yarn splicing operation is started, the yarn in use that is caught in the middle of the angular displacement of the yarn guide lever 44 moves to the front side of the separator 43 beyond the side end of the separator 43, and the separator 43 and the yarn presser It enters between the plates 103. Further, a waiting thread also enters between the thread retainer plate 103 and the separator 43. In this state, by driving the opening / closing mechanism 100, a thread disposed between them is sandwiched and temporarily held between the thread retainer plate 103 and the separator 43. At this time, the opening / closing plate 102 closes the gap of the cover body. In this way, by using the thread holding plate 103 and the opening / closing plate 102 for closing the gap between the cover bodies, which are necessary for performing the splicing operation, together with the single opening / closing mechanism 100, the configuration can be simplified and separately provided. A drive source is not required, and the gap between the cover body 70 and the yarn guide lever 44 can be closed.
FIG. 12 shows a schematic internal configuration of the suction nozzle 12. The suction nozzle 12 includes a suction port 51 on one side of a substantially cylindrical casing 50 in the axial direction, a pressing port 52 in the middle, and an outflow port 53 on the other side in the axial direction. When compressed air is introduced into the pressing port, the compressed air is blown out to the outflow port 53 side, and a negative pressure can be generated at the suction port 51. The pressure of the compressed air supplied from the compressed air supply source may be about 490 kPa (5 kg weight per square centimeter), for example. Such compressed air may be supplied collectively to the entire factory, and in such a case, it can also be used for the cleaner 1. Moreover, it is also possible to provide a compressed air source such as a compressor for each flat knitting machine 3 or for each group.
When the compressed air source is thus included, the cleaner 1 of the splicer device 2 includes the cover body 70, the electromagnetic valve 32, the compressed air source, and the control unit 30. The cover body 70 is provided with a suction 5 as a cleaning means and covers a surrounding space including at least a part of the splicer device 2. The electromagnetic valve 32 switches the suction of the air flow by the cleaning means to ON / OFF, and the control unit 30 controls the electromagnetic valve 32. Since the compressed air source supplies compressed air, even if the splicer device 2 is added to the existing flat knitting machine 3 or the like, the fiber dust generated at the time of piecing can be efficiently removed.
FIGS. 13 and 14 are diagrams illustrating a schematic configuration in which the splicer device 2 with the cleaner 1 is attached to the flat knitting machine 60. FIG. 13 shows a simplified configuration viewed from the front, and FIG. 14 shows a simplified configuration viewed from the left side. In the flat knitting machine 60, a plurality of knitting yarns are supplied via a side tension device 61 provided on one side or both sides. The side tension device 61 also has a function of suppressing fluctuations in the tension of the knitting yarn within a certain range. A top spring device 62 is provided on the upper part of the flat knitting machine 60. The top spring device 62 detects cutting or knotting of the knitting yarn, and stops the device if detected. The splicer device 2 is further covered with a cover 63 while the cleaner 1 is mounted. On the downstream side of the splicer device 2 in the yarn supply direction, there is also provided a knitting yarn constant supply device 64 for feeding the knitting yarn by a necessary amount used for knitting the knitted fabric. By accurately controlling the supply length of the knitting yarn spliced by the splicer device 2, the knitting yarn can be switched at the boundary of the pattern when, for example, an intarsia pattern is knitted on the knitted fabric to be knitted. it can. The knitting yarn is supplied to each top spring device 62 in a state of being pulled out from the cone 65. A knitting yarn constant supply device 64 is also housed in the cover 63, and the dust box 10 is provided outside the cover 63. In the dust box 10, not only the fiber dust sucked from the suction port 8 from the splicer device 2 but also the cutting waste of the yarn joint portion sucked by the suction 5 is collected. The knitting yarn is supplied from the side tension device 61 or the knitting yarn constant supply device 64 to the knitted fabric knitted on the needle bed 66. A yarn path rail 67 is installed above the needle bed 66, and a carriage 68 that runs along the needle bed 66 entrains a yarn supplying member that runs along the yarn path rail 67 to knit the knitting needles of the needle bed 66. Supply yarn.
According to the cleaner 1 as described above, the splice nozzle 4 and the suction 5 provided close to each other are covered by the cover body 70. When splicing with the splice nozzle 4, the cover body 70 and the yarn guide lever 44 cooperate to form a closed space 71 having a volume as small as possible. The fiber dust generated when the yarn is spliced is prevented from scattering into a wide space and is held in the closed space 71 covered with the cover body 70. The suction 5 only needs to suck the fiber dust in the closed space, and can efficiently suck and remove the fiber dust. Even if the suction nozzle 12 shown in FIG. 12 is used to generate a negative pressure using compressed air, fiber dust can be efficiently sucked.
Since the yarn guide lever 44 forming the space 71 is an essential component of the splicer device 2 for piecing, the cover body 70 can be made smaller and the cleaner 1 can be made smaller. The downsizing of the cleaner 1 can contribute to the downsizing of the splicer device 2. Further, since the suction 5 starts the suction before the air is discharged from the splice nozzle 4, the air discharged from the splice nozzle 4 is guided to the suction 5 by the air flow generated in advance. Accordingly, the fiber dust can be guided to the suction 5 by the air flow, and efficiently sucked and removed.
Further, the main body 74 of the cover body 70 is angularly displaced with respect to the hinge part 73 fixed to the partition wall 80, so that a large gap can be formed between the cover body 70 and the partition wall 80. As a result, work such as maintenance can be facilitated.
As another embodiment of the present invention, the cover body 70 may be configured not to include a portion that covers the splice nozzle 4 and the suction 5 from the rear. In this case, the splice nozzle 4 and the suction 5 are covered from behind by the partition wall 80. In this configuration, when the yarn splicing is performed by the splice nozzle 4, the cover body 70 forms a closed space 71 in cooperation with the yarn guide lever 44 and the partition wall 80. Thus, in the structure using the partition 80, the structure of the cover body 70 can be simplified and the small cover body 70 can be used.
In such a configuration, the cover body 70 is not provided with the effect provided by the portion covering the splice nozzle 4 and the suction 5 from the rear, but the other effects obtained in the embodiment of the present invention are the same. Can be achieved. In addition, since the cover body 70 cooperates with the base 81 in addition to the thread guide lever 44 to form the closed space 71, the number of parts can be further reduced and the cleaner 1 can be downsized.
The present invention can be implemented in various other forms without departing from the spirit or main features thereof. Therefore, the above-described embodiment is merely an example in all respects, and the scope of the present invention is shown in the claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the scope of the claims are within the scope of the present invention.

According to the present invention, the suction head is provided in the vicinity of the yarn splicing head that exposes the yarn to the compressed fluid flow and splices, and the yarn splicing head and the suction head are covered by the cover body. By covering with the cover body, a closed space in which the yarn splicing head and the suction head are arranged is formed at least when yarn splicing is performed with the yarn splicing head. The fiber dust generated when the yarn is spliced is prevented from scattering into a wide space and is kept in a closed space covered with the cover body. The suction head only needs to suck the fiber dust in this closed space, and can efficiently suck and remove the fiber dust. A suitable cleaner device of the splicer device can be realized.
The cover body cooperates with the yarn guide lever to form a closed space. The yarn guide lever is an essential component of the splicer device regardless of whether or not a closed space is formed by the cover body. Since the closed space is formed by using this essential component, the cover body can be made small, and the cleaner device can be miniaturized.
According to the present invention, the cover body cooperates with the base in addition to the yarn guide lever to form a closed space. The base is also an essential component of the splicer device. Therefore, the cover body can be made small and the cleaner device can be miniaturized.
According to the present invention, by closing the gap formed in the closed space by the opening / closing mechanism, it is possible to prevent the fiber dust generated when piecing is spattered from the gap to the outer space of the cover body. . Thereby, a suitable cleaner device of the splicer device can be realized.
According to the present invention, the suction by the suction head is started before the compressed fluid is supplied to the yarn splicing head. By starting the suction by the suction head first, a fluid flow flowing into the suction head is generated in the closed space, and then the compressed fluid is supplied to the yarn splicing head and the compressed fluid is discharged from the yarn splicing head. be able to. The fluid discharged from the yarn splicing head is guided to the suction head by a fluid flow generated in advance. Therefore, the fiber dust can be guided to the suction head by the fluid flow and efficiently sucked and removed.
According to the present invention, since the hinge portion is fixed to the base, the remaining portions other than the hinge portion are also fixed to the base. By angularly displacing the remaining portion with respect to the hinge portion, the gap between the cover body and the base can be increased, and operations such as maintenance can be facilitated.

Claims (5)

Provided in a splicer device having a yarn splicing head that exposes a yarn to a compressed fluid flow and splicing, a base that supports the splicing head, and a yarn guide lever that guides the yarn to be spliced to the splicing head. , A cleaner device for sucking and removing fiber dust generated when piecing,
A suction head supported by the base of the splicer device and provided close to the splicing head;
A cover body for covering the yarn splicing head and the suction head and forming a closed space when the yarn splicing is performed at least by the yarn splicing head;
A cleaner device for a splicer device, wherein the cover body forms the closed space in cooperation with a yarn guide lever of the splicer device.   The cleaner device for a splicer device according to claim 1, wherein the cover body forms the closed space in cooperation with a yarn guide lever and a base of the splicer device.   3. The splicer device cleaner according to claim 1, further comprising an opening / closing mechanism for closing a gap formed in the closed space formed by the cover body and the yarn guide lever of the splicer device. .   The cleaner device for a splicer device according to any one of claims 1 to 3, wherein the suction head starts suction before supplying the compressed fluid to the yarn splicing head. The cleaner for a splicer device according to any one of claims 1 to 4 , wherein the cover body has a hinge portion fixed to the base and an angularly displaceable portion connected to the hinge portion. apparatus.

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