JP2012117187A - Fabric brushing device for flat-knitting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fabric brushing device for flat-knitting machine which reduces labor for assembly and adjustment and facilitates manual opening and closing operations.SOLUTION: A fabric brushing plate 15 is structured so that while a base end side is supported facing a discharge position 12a in front of a lifting path of a set-up bed 6 and is locked by a lever 22, a loose end side with a lock shaft 23 as the center is swung and displaced ahead to release the lifting path of the set-up bed 6. When a knitted fabric is unwound, the loose end of the fabric brushing plate 15 closes the lifting path of the set-up bed 6 by covering an upper position 12b of the descending set-up bed 6 and discharges the fabric inclined forward and downward. At the lower part of the fabric brushing plate 15, facing the lower part of a set-up device 4, interlocking with lift up and down of the set-up bed 6, an interlocking mechanism 18 is placed generating driving force to open and close the fabric brushing plate 15. The fabric brushing plate 15 can be manually opened and closed if the lock shaft 23 is not locked on the lever 22.

Description

  The present invention relates to a fabric wiping apparatus for a flat knitting machine, which is provided below a needle bed of a flat knitting machine together with a lowering device and a set-up device.

  Conventionally, in the flat knitting machine 1 as shown in a simplified manner in FIG. 9, the fabric wiping device 2 is used together with the unwinding device 3 and the set-up device 4 at the lower portion where the frame 1 a is provided (for example, Patent Documents). 1). The lowering device 3 includes a pair of lowering rollers 3a and 3b. Although not shown, a pair of front and back needle beds facing each other are provided above the unwinding device 3, and the knitted fabric is knitted at the tooth gap between the needle beds. The knitted fabric is hanged from the mouth and is pulled down by being sandwiched between the lowering rollers 3a and 3b. The fabric wiping device 2 includes a fabric wiping plate 5, guides the knitted fabric suspended by the upper fabric wiping portion 5 a inclined at the fabric wiping angle θ to the front discharge position 2 a, and discharges it to the front side of the flat knitting machine 1. Then, the front surface side of the set-up device 4 is covered with the wall surface portion 5b below the discharge position 2a. The fabric wiper plate 5 corresponds to the knitted fabric guide plate of Patent Document 1.

  The set-up device 4 includes a set-up bed 6 and an elevating mechanism 7. The set-up bed 6 has a plurality of set-up needles 6a standing from the top and arranged in a direction perpendicular to the paper surface. The set-up needle 6a is raised to the tooth opening by the elevating mechanism 7 at the start of knitting of the knitted fabric. Pull down the knitted fabric knitted between the needle beds. While the set-up bed 6 is raised, the lowering rollers 3a and 3b are opened, and the fabric wiping portion 5a has a lifting path. When the set-up needle 6a lowers the knitted fabric and lowers than between the lowering rollers 3a and 3b, the lowering rollers 3a and 3b are closed, the set-up needle 6a releases the knitted fabric, and the knitted fabric is lowered. It can be rolled down between the rollers 3a and 3b. The fabric wiper plate 5 closes the lifting path near the upper position 2b of the set-up needle 6a where the fabric wiper 5a is lowered, inclines at the fabric wiper angle θ, and discharges the knitted fabric.

  The elevating mechanism 7 drives the timing belt 7f spanned between the pulleys 7d and 7e by the gears 7b and 7c with the driving output of the motor 7a. The elevating guide 7g attached to the timing belt 7f moves up and down along the guide shaft 7h. The elevating guide 7g supports the set-up bed 6, is provided with a cam 7i on the side surface, and is also provided with a stopper 7j that regulates the lower limit of lowering. The cam 7i operates the interlocking mechanism 8 of the fabric wiping apparatus 2 to interlock the fabric wiping portion 5a with a lifting path when the set-up bed 6 is raised. The interlocking member 8a of the interlocking mechanism 8 includes followers 8b and 8c that receive the action of the cam 7i, and swings about the swinging shaft 8d. The swing shaft 8d also supports the cloth wiper plate 5 so as to be swingable. The interlocking member 8a is urged clockwise by pulling by the spring 8e. The interlocking member 8a has a lock receiver 8f at the upper end of the arm protruding upward. The lock receiver 8f is engaged with a lock shaft 9 provided on the wall surface portion 5b of the fabric wiper plate 5 to interlock the interlocking member 8a and the fabric wiper plate 5. When the lock shaft 9 is removed from the lock receiver 8f, the cloth wiping plate 5 can be manually oscillated and displaced about the axis of the oscillating shaft 8d. An operation of manually opening the fabric wiper plate 5 is necessary when performing an operation of manually removing the knitting yarn that is applied to the set-up needle 6a. A front cover 10 is provided below the wall surface portion 5 b of the fabric wiper plate 5, and the knitted fabric falling from the discharge position 2 a is received by a knitted fabric receiver 10 a below the front cover 10.

JP 2007-231462 A

  In the cloth wiping device 2 as shown in FIG. 9, it is necessary to provide the lock shaft 9 combined with the lock receiver 8 f on the cloth wiping plate 5 side in order to allow the operation of manually opening the cloth wiping plate 5. Since it is necessary to provide a portion that is swingably supported by the swing shaft 8d on the fabric wiper plate 5 side, it is necessary to assemble and adjust the fabric wiper device 2.

  An object of the present invention is to provide a fabric wiping device for a flat knitting machine that reduces the labor and adjustment of assembling and is easy to manually open and close.

The present invention relates to a set-up device having a set-up bed that can be moved up and down, and a fabric wiping device for a flat knitting machine that includes a lowering device below the tooth opening.
The base end side is supported facing the discharge position where the knitted fabric should be discharged in front of the raising / lowering path of the set-up bed, and the free end side swings forward around the base end side during set-up to move the set-up bed up and down. The route is opened and the raising / lowering route of the set-up bed is closed by covering the upper position of the set-up bed where the free end side is lowered when the knitted fabric being knitted by the unwinding device is lowered, and the cloth is predetermined to the base end side. A dough-pasting plate that descends forward at a pay-in inclination angle;
The drive unit has a drive unit arranged on the swing axis on the side of the base end side of the fabric wiper plate, and generates a drive force for swinging the fabric wiper plate in conjunction with the raising and lowering of the set-up bed. An interlocking mechanism that can output from
It is provided on the base end side of the cloth wiper plate and can move forward and backward to the drive part of the interlocking mechanism along the swing axis, and the cloth receives the driving force output from the drive part when it advances beyond the predetermined advance position. A lock shaft that is locked so as to swing, and is not locked when the advancement does not reach the advancement position;
Is a fabric wiping device for a flat knitting machine.

Further, in the present invention, the lock shaft engages with the driving portion of the interlocking mechanism according to the amount of advancement of the advancement that is not locked without reaching the advancement position, and the dough wiping plate swings. It is switched between a state where it receives a moving support and a state where it can be detached from the axis of the drive unit without being engaged with the drive unit.
It is characterized by that.

In the present invention, the interlock mechanism is
A cam mechanism arranged facing the lower part of the set-up device and generating a driving force for swinging the fabric wiper in conjunction with the raising and lowering of the set-up bed;
A transmission mechanism for transmitting a driving force generated by the cam mechanism to a driving unit disposed on the swing axis;
It is further characterized by including.

Further, in the present invention, the interlocking mechanism is provided only on one side of the fabric wiper plate,
It is characterized by that.

  According to the present invention, the lock shaft provided on the base end side of the cloth wiper plate can advance and retract to the drive unit side of the side interlocking mechanism along the swing axis, and whether or not to advance beyond a predetermined advance position. Thus, it is determined whether or not the space between the lock shaft and the drive unit is locked. If the lock shaft is not advanced to the advanced position, the cloth wiper can be swung manually. Since the cloth wiper plate may be provided with a lock shaft in order to receive the driving force around the swing axis from the drive unit of the interlock mechanism, it is possible to reduce the labor and adjustment of assembly.

  Further, according to the present invention, the operation of moving the lock shaft sideways along the swing axis line allows the lock shaft to be locked to the drive unit of the interlock mechanism, to be manually opened or closed without being locked, or the lock shaft to be It is possible to switch whether to disengage from the drive unit.

  Further, according to the present invention, since the driving force can be generated by the cam mechanism and the driving force can be transmitted by the transmission mechanism, the fabric wiper plate closes the raising / lowering path of the set-up bed at the upper position, and moves the knitted fabric forward. It is only necessary to be inclined so as to reach the discharge position for discharging, so that the size and weight can be reduced, and the opening / closing operation can be easily performed manually.

  In addition, according to the present invention, as a result of reducing the size and weight of the fabric wiper plate, the fabric wiper plate can be sufficiently swung even if an interlocking mechanism is provided only on one side of the fabric wiper plate.

FIG. 1 is a left side view showing a simplified configuration of a fabric wiping device 12 of a flat knitting machine 11 as an embodiment of the present invention. FIG. 2 is a partial left side view showing a state in which the fabric wiper plate 15 is manually opened and closed by the fabric wiper 12 of FIG. FIG. 3 is a partial left side view showing a state in which the fabric wiper 15 is opened in conjunction with the raising of the set-up bed 6 in the fabric wiper 12 of FIG. FIG. 4 is a simplified front view illustrating a configuration in which the transmission mechanism 20 is provided only on one side of the fabric wiper plate 15 and a configuration in which the lock shaft 23 is locked in the fabric wiper 12 of FIG. FIG. 5 is a plan view, a left side view, a front view, and a left side sectional view showing the configuration of the lock shaft 23 used in the dough removing apparatus 12 of FIG. FIG. 6 is a plan view, a front sectional view, and a right side view of the lever 22 used in the dough removing apparatus 12 shown in FIG. FIG. 7 is a left side view of the fabric wiper plate 15 used in the fabric wiper 12 of FIG. FIG. 8 is a simplified front view partially showing a cross-sectional view of a state in which the lock shaft 23 is advanced to the side and a change in the coupling state to the lever 22 in the dough wiping apparatus 12 of FIG. 1. FIG. 9 is a left side view showing a simplified configuration of the fabric wiping device 2 of the conventional flat knitting machine 1.

  Hereinafter, with reference to FIGS. 1 to 8, a fabric wiping apparatus 12 as one embodiment of the present invention will be described. However, in the present embodiment, the same reference numerals are given to the portions corresponding to the portions described with respect to the dough wiping apparatus 2 shown in FIG. 9, and the duplicate description may be omitted. In the description of each figure, the parts described above may be referred to with reference numerals not shown in the figure.

  FIG. 1 shows a simplified configuration of a fabric wiping device 12 provided below the mouth of the flat knitting machine 11 as an embodiment of the present invention, but illustration of the mouth and needle bed is omitted. The needle bed is provided above the frame 11a. The fabric wiping device 12 is a fabric wiping plate 15 that covers the front from above the set-up device 4 that can be raised and lowered below the unwinding device 3. The fabric wiper 15 is supported at the base end side facing the front discharge position 12a of the lifting path of the set-up bed 6, and the free end side swings forward about the base end side during set-up so that the set-up The lifting path of the bed 6 is opened. When lowering the knitted fabric during knitting by the lowering device 3, the free end side of the fabric wiper plate 15 covers the upper position 12b of the set-up bed 6 in the lowered state and closes the raising / lowering path of the set-up bed 6 to discharge the position. It descends forward with a predetermined dough removal angle θ to the base end side facing 12a. The front cover 16 covers the front surface of the set-up device 4 downward from the base end side of the fabric wiper plate 15, and a knitted fabric receiver 16a is provided at the lower portion in the same manner as the front cover 10 of FIG. Below the fabric wiper 15, an interlocking mechanism 18 that faces the lower portion of the set-up device 4 and generates a driving force for opening the fabric wiper 15 in conjunction with the raising and lowering of the set-up bed 6 is disposed.

  The interlocking mechanism 18 includes an interlocking member 18a that receives the action of a cam 7i provided on the lifting guide 7g of the lifting mechanism 7 of the set-up device 4, followers 18b and 18c, a swing shaft 18d, and a spring 18e. Regarding these components, the interlocking mechanism 18 is equivalent to the interlocking mechanism 8 of FIG. The cam 7i and the interlocking member 18a are arranged facing the lower part of the set-up device 4, and function as a cam mechanism that generates a driving force that the fabric wiper plate 5 swings in conjunction with the raising and lowering of the set-up bed 6. The interlocking mechanism 18, together with the cam mechanism, transmits the generated driving force as an angular displacement centered on the swing axis 23 a on the base end side of the fabric wiper plate 15 on at least one side of the fabric wiper plate 15. 20 is included. The transmission mechanism 20 includes a link 21 and a lever 22. The tip of the swing arm 18 f extending forward from the interlocking member 18 a is connected to the lower end of the link 21. The lever 22 connected to the upper end of the link 21 serves as a drive unit that can output a drive force for swinging the lock shaft 23 provided on the dough wiper plate 15 about the swing axis 23a. The drive of the lock shaft 23 by the lever 22 is performed while the lock shaft 23 is locked to the lever 22.

  FIG. 2 shows a state in which the fabric wiper plate 15 is manually opened and closed by the fabric wiper 12 of FIG. When the lock to the lock shaft 23 by the lever 22 is released, the fabric wiper plate 15 can be oscillated and displaced manually. In manual operation, the base end side swings toward the discharge position 12a, and the tip end side covers the upper position 12b as shown by the solid line, and the tip end side is below the discharge position 12a as shown by the phantom line. The range in between can be swung and displaced as shown by the arrow 12c.

  FIG. 3 shows a state in which the fabric wiper 15 is opened in conjunction with the raising of the set-up bed 6 in the fabric wiper 12 of FIG. By the action of the rising cam 7i, the interlocking member 18a swings in the clockwise direction around the swing shaft 18d, and the cloth wiper 15 opens the upper position 12b of the lifting path. With the operation of the interlocking mechanism 18 formed by the interlocking member 18a, the link 21, and the lever 22, the fabric wiper plate 15 also swings in the clockwise direction around the lock shaft 23 on the proximal end side as the set-up bed 6 is raised. Perform dynamic displacement. While the set-up bed 6 is raised, the open state of the fabric wiper 15 is continued. The driving force can be transmitted via the link 21 via a wire, a timing belt, or the like.

  FIG. 4 shows a configuration in which the transmission mechanism 20 is provided only on one side of the fabric wiper plate 15 and a configuration in which the lock shaft 23 performs locking in the fabric wiper 12 of FIG. The frame 11a is divided into a left part 11aL and a right part 11aR. The lower part is covered with the front cover 16 from the middle part on the front side between the left part 11aL and the right part 11aR of the frame 11a, and the upper part is covered with the cloth wiper plate 15. A lock shaft 23 is provided on the base end side of the fabric wiper plate 15 so as to be able to advance and retract outward. The rocking axis 23a of the lock shaft 23 coincides with the center line where the lockable lever 22 is rocked by engaging with the tip of the lock shaft 23. The lock shaft 23 is provided with an operation portion 23b for manual operation, and an operation hole 23c of the operation portion 23b can be operated from the front side of the fabric wiper plate 15 through a hole 15a provided in the fabric wiper plate 15. it can. On the right side of the lock shaft 23, a spring 24 that presses and biases the lock shaft 23 to the left and a fixing screw 25 that fixes the right end of the spring 24 are arranged. The transmission mechanism 20 including the link 21 and the lever 22 is provided between the fabric wiper 15 and the left portion 11aL of the frame 11a, and is covered with a frame inner surface cover 26L. The elevating mechanism 7 of the set-up device 4 is also accommodated in the frame inner surface cover 26L.

  On the right side of the fabric wiper plate 15, an oil-impregnated bush 27 is disposed along the extension of the swing axis 23a, and can swing while the tip of the support shaft 28 supported in the frame inner surface cover 26R is inserted. Supported by Since the fabric wiper plate 15 is small and can be reduced in weight, the elevating mechanism 7 of the set-up device 4 can be accommodated in the frame inner surface cover 26R, and the transmission mechanism 20 can be omitted. When the transmission mechanism 20 is not provided, it is not necessary to provide other components such as the interlocking member 18a.

  FIG. 5 shows the configuration of the lock shaft 23 used in the fabric wiper 12 of FIG. 1 as viewed from the plane at (a), the left side at (b), and the front at (c). (D), (e), (f) shows the cross section seen from the cut surface line DD, EE, FF of (c), respectively. As shown in these cross sections, the left end side of the lock shaft 23 is a round cross section 23d, and then is a cross section with protrusions 23e and 23f.

  FIG. 6 shows the configuration of the lever 22 used in the dough removing apparatus 12 of FIG. 1 as viewed from the plane at (a), the front cross section at (b), and the right side at (c). The lever 22 is provided with a link arm 22 a that is connected to the upper end of the link 21. The cylindrical bearing portion 22b of the lever 22 has a support hole 22c, a swing hole 22d, and a lock groove 22e. In the engaged state in which only the circular cross-section 23d of the lock shaft 23 is inserted into the swing hole 22d, the swing displacement of the lock shaft 23 with respect to the lever 22 becomes possible. If the protrusion-equipped cross-section 23e is also inserted into the lock groove 22e, the lock shaft 23 is locked to the lever 22, and the fabric wiper plate 15 opens and closes in conjunction with the raising and lowering of the set-up bed 6. The lever 22 is also provided with a switch 29 for detecting the locked state.

  FIG. 7 shows the cloth wiping plate 15 used in the cloth wiping apparatus 12 of FIG. 1 from the left side. The cloth wiper 15 can be manufactured by extruding a light metal such as aluminum. A shaft accommodating portion 15b is provided on the base end side of the dough wiping plate 15, and the spring 24 can be accommodated together with the fixing screw 25 as shown in FIG. Since the projection accommodating groove 15c is provided in the shaft accommodating portion 15b, the projection-equipped cross-sectional portion 23f of the lock shaft 23 can be prevented from being rotated and accommodated as shown in FIG.

  FIG. 8 shows the relationship between the state of advancement of the lock shaft 23 to the side and the change of the state of engagement with the lever 22 in a partially cross-sectional and simplified manner in the fabric wiping device 12 of FIG. . The lever 22 is supported by the support shaft 30 inserted in the support hole 22c in a state in which the lever 22 can swing and displace around the extension of the swing axis 23a. (A) shows a state in which the lock shaft 23 is separated from the lever 22. Since the lock shaft 23 does not engage with the lever 22 which is a drive unit, the lock shaft 23 can be detached in a direction away from the axis along which the lever 22 swings and displaces. (B) shows a state in which the round cross-section 23 d at the tip of the lock shaft 23 is inserted only into the swing hole 22 d of the lever 22. (C) shows a state in which the projecting portion of the projecting section 23e of the lock shaft 23 is inserted into the lock groove 22e and the switch is operated at the tip of the projecting portion. The lock shaft 23 is locked with the lever 22 and continues to be locked by urging by the spring 24.

  That is, the lock shaft 23 can advance and retreat to the drive unit side of the interlocking mechanism 18 along the swing axis 23a. Advancing position is determined in advance so that the protruding portion of the protruding cross section 23e starts to be inserted into the locking groove 22e of the lever 22 beyond the state of (b). When the lock shaft 23 is advanced beyond the advanced position, the lever 22 that is the drive unit of the interlocking mechanism 18 and the fabric wiper 15 are locked. When the lock shaft 23 does not reach the advanced position, the lock shaft 23 is not locked, and the cloth wiper 15 can be opened and closed manually.

  Such a configuration in which the lock state with the drive unit is switched by advancing and retreating the lock shaft 23 can also be applied to the cloth wiping device 2 of FIG. That is, the swing shaft 8d is used as a drive unit, the axis of the lock shaft 9 is aligned with the swing axis, and the lock shaft 9 is advanced and retracted sideways along the axis.

DESCRIPTION OF SYMBOLS 3 Unwinding device 4 Set-up device 6 Set-up bed 6a Set-up needle 7 Elevating mechanism 7i Cam 11 Weft knitting machine 12 Dough removal device 15 Dough removal plate 16 Front cover 18 Interlocking mechanism 18a Interlocking member 20 Transmission mechanism 21 Link 22 Lever 23 Lock shaft

Claims (4)

In a set-up device having a set-up bed that can be moved up and down, and a fabric wiping device of a flat knitting machine that includes a lowering device below the tooth opening,
The base end side is supported facing the discharge position where the knitted fabric should be discharged in front of the raising / lowering path of the set-up bed, and the free end side swings forward around the base end side during set-up to move the set-up bed up and down. The route is opened and the raising / lowering route of the set-up bed is closed by covering the upper position of the set-up bed where the free end side is lowered when the knitted fabric being knitted by the unwinding device is lowered, and the cloth is predetermined to the base end side. A dough-pasting plate that descends forward at a pay-in inclination angle;
The drive unit has a drive unit arranged on the swing axis on the side of the base end side of the fabric wiper plate, and generates a drive force for swinging the fabric wiper plate in conjunction with the raising and lowering of the set-up bed. An interlocking mechanism that can output from
It is provided on the base end side of the cloth wiper plate and can move forward and backward to the drive part of the interlocking mechanism along the swing axis, and the cloth receives the driving force output from the drive part when it advances beyond the predetermined advance position. A lock shaft that is locked so as to swing, and is not locked when the advancement does not reach the advancement position;
A fabric wiping device for a flat knitting machine, comprising: The lock shaft engages with the drive portion of the interlock mechanism and receives the support for swinging the dough wiper plate according to the amount of advancement of the advancement that is not locked without reaching the advancement position. The state is switched to a state in which the drive unit can be detached in a direction away from the axis without being engaged with the drive unit.
The fabric wiping apparatus for a flat knitting machine according to claim 1. The interlocking mechanism is
A cam mechanism arranged facing the lower part of the set-up device and generating a driving force for swinging the fabric wiper in conjunction with the raising and lowering of the set-up bed;
A transmission mechanism for transmitting a driving force generated by the cam mechanism to a driving unit disposed on the swing axis;
The fabric wiping apparatus for a flat knitting machine according to claim 1 or 2, further comprising: The interlocking mechanism is provided only on one side of the fabric wiper plate,
The fabric wiping device for a flat knitting machine according to claim 3.

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