JP2535868B2 - Full and empty bobbin transfer equipment in spinning machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to a full / empty bobbin transfer device for a ring spinning machine, a draw twister, a yarn twisting machine, and the like.

(Prior Art) A full bobbin mounted on a transfer member such as a transfer rail or a transfer belt arranged along a spindle row of a spinning machine is sent to the winder side in the next process, and a peg tray with an empty bobbin is fed from the end of the machine base. A pipe for collectively replacing the empty bobbin-equipped peg trays, which are arranged at the pipe replacement positions on the mounting and transporting member corresponding to the respective spindles, with a full bobbin on a machine stand of a spinning machine or the like in units of a plurality. In replacement work,
A proper positioning accuracy of the peg tray row with empty bobbins with respect to the spindle row is required. An empty bobbin supply method using a transfer rail is disclosed in Japanese Patent Laid-Open Nos. 57-161133 and 57-161134, and a peg tray having a recess on the lower surface is reciprocally driven at a spindle row pitch. It is supplied from the machine base end onto the transfer rail and can be supplied to the pipe replacement position corresponding to each spindle by the cooperation of the locking pawl and the transfer rail that can be engaged with and disengaged from the recess as the transfer rail reciprocates. Is. That is, the peg tray is sequentially moved on each of the pipe replacement positions each time the transfer rail reciprocates, and the peg tray is transferred and positioned with respect to the spindle at the same time.

(Problems to be solved by the invention) The full bobbin transferred to the peg tray on the transfer rail is supplied to the winder side based on the full bobbin request signal from the winder, but the full bobbin request signal is supplied to the winder side. In the case of bobbin consumption time, that is, in the case of a thick count yarn in which the winding time is reduced, the transmission interval of the full bobbin request signal is short, and a high full bobbin transfer speed is required. However, in the conventional feeding method, when the transfer speed of the peg tray is increased, the peg tray overruns on the transfer rail due to inertia, and it is difficult to accurately stop the peg tray with an empty bobbin on a predetermined pipe replacement position. Becomes This is a hindrance to the pipe replacement work, and if it is attempted to secure a proper positioning accuracy that does not hinder the pipe replacement work,
It becomes difficult to increase the transfer speed of the peg tray.

Configuration of the Invention (Means for Solving the Problems) In the present invention, therefore, a peg tray relative transfer is performed in which a peg tray is mounted along a spindle row in a spinning machine or the like at a pitch of the spindle row or a half pitch thereof. The peg tray mounting transfer means having a member and the transfer operation of the peg tray mounting transfer means are independent of each other, and the peg tray on the mounting transfer member is transferred by the positioning transfer operation in the direction opposite to the transfer direction of the peg tray. A full / empty bobbin transfer device was constituted by the peg tray positioning means arranged at each tube replacement position on the member.

(Operation) That is, after the empty bobbin-equipped peg tray on the mounting transfer member is supplied to the position corresponding to the spindle row by the transfer operation of the peg tray transfer means, it is moved in the direction opposite to the transfer direction of the peg tray prior to the pipe changing operation. The positioning operation of the peg tray positioning means for performing the positioning feeding operation is performed. By the positioning operation of the peg tray positioning means that is independent of the transfer operation of the peg tray transfer means, the empty bobbin-equipped peg tray on the mounting transfer member is arranged at each pipe replacement position on the mounting transfer member with reasonable accuracy, and is thus arranged at the pipe replacement position. The empty bobbin on the peg tray and the full bobbin on the spindle can be collectively replaced without any problem. Further, the independence of the transfer operation of the peg tray transfer means and the positioning operation of the peg tray positioning means reliably eliminates the position shift of the peg tray due to the increase of the transfer speed by the positioning operation, thereby increasing the transfer speed of the peg tray. It is possible.

(Example) An example in which the present invention is embodied in a ring spinning machine will be described below with reference to the drawings.

As shown in FIG. 1, a plurality of spinning machines 1 arranged side by side.
A peg tray supply conveyor 2 and a peg tray take-out conveyor 3 are arranged on one end side of the peg tray, and the empty bobbin-equipped peg tray 5 on the conveyor 4 for carrying the peg tray with empty bobbins is transferred onto the supply conveyor 2 and taken out. The peg tray 6 with the full bobbin on the conveyor 3 is transferred onto the conveyor 7 for conveying the peg tray with the full bobbin. The empty bobbin-equipped peg tray 5 on the conveyor 4 is supplied from the winder 8 and
The full bobbin-equipped peg tray 6 is supplied to the winder 8.

As shown in FIG. 2, a guide cover 12 is arranged along the row of spindles 9 below a spindle rail 11 that vertically supports a large number of spindles 9 and intermediate pegs 10 in parallel. A pair of transfer rails 13 are arranged side by side in the guide cover 12 so as to be able to communicate with the supply conveyor 2 on the front side of the machine base 1 shown by R in FIG. The peg tray 5 with an empty bobbin on the feeding conveyor 2 which is constantly driven can be fed onto the transfer rail 13 because the peg tray 5 is reciprocated integrally with the feeding pitch, which is slightly larger than the pitch of the rows. As shown in FIGS. 6 and 7, the guide cover 12 is fixedly supported by a plurality of support brackets 15 mounted on the machine base 1 side at predetermined intervals, and the transfer rail 13 is supported by the support brackets 15 on the machine base. 1
The support brackets 15 are fitted and supported so as to be slidable in the longitudinal direction, and the support brackets 15 are installed at positions corresponding to both ends of the spindle 9 row and a plurality of equal divisions of the spindle 9 row.

On the rear side of the machine base 1 shown by L in FIG. 1, a similar transfer rail 16 is provided in a guide cover (not shown) so as to be able to communicate with the take-out conveyor 3, and an air cylinder 17 is used to connect the spindle 9 to the spindle 9. The peg tray on the transfer rail 16 can be discharged onto the take-out conveyor 3 which is always operating, because the peg tray on the transfer rail 16 is integrally reciprocated in the row direction to be slightly larger than the pitch of the nine spindles. The support mechanism of the transfer rail 16 and the guide cover is configured similarly to the machine base 1R side.

At the end of the machine base 1 opposite to the supply conveyor 2 and the take-out conveyor 3, a direction changing rail 18 is provided on both transfer rails 1.
It is arranged so that it can communicate with 3,16. A feed lever 19 is rotatably supported at a connecting portion between the transfer rail 13 and the direction changing rail 18, and the peg trays on the transfer rail 13 are changed one by one by the retracting operation of the air cylinder 20.
Can be transferred to the side. Further, on the transfer rail 13 side, a peg tray counting device 21 is installed near the transfer rail 13 corresponding to the end of the spindle 9 on the supply conveyor 2 side, and the number of peg trays passing through the counting device 21 is counted. .

As shown in FIGS. 3, 6, and 8, the storage cylinders 22 and 23 are tightened and fixed to the support brackets 15 so that the mounting positions can be adjusted, and the drive rod 24 operatively connected to the air cylinder 31 is connected to the storage cylinders.
It has been inserted in 22,23. A retracting hole 24a is vertically provided in the drive rod 24 near the storage cylinder 22 corresponding to the end of the spindle 9 on the supply conveyor 2 side, and a locking piece 25 is provided in the retracting hole 24a. It is rotatably supported up and down. The tip side of the locking piece 25 is oriented in the transfer direction of the peg tray, and can be moved in and out by the action of the spring 27 into the recess 5a on the lower surface of the peg tray on the transfer rail 13. Locking piece
The entrance / exit of 25 into / from the recess 5a is determined by the positional relationship between the housing cylinder 22 and the locking piece 25, and this positional relationship is controlled by the retracting operation of the air cylinder 31. Further, a retract hole 24b is vertically provided through the drive rod 24 in the vicinity of each of the remaining storage cylinders 23, and locking pieces 28A, 28B, 28C, 28D have shafts 29A, 28D in the retract hole 24b.
It is rotatably supported up and down by 29B, 29C, and 29D.
The tip side of each of the locking pieces 28A to 28D is directed to the locking piece 25 side, and can be moved in and out by the action of the spring 30 into the recess 5a on the lower surface of the peg tray on the transfer rail 13. The engagement / disengagement of the locking pieces 28A to 28D into / from the recess 5a is determined by the positional relationship between the storage cylinders 23 and the locking pieces 28A to 28D. Controlled. The air cylinder 31 is operated prior to the pipe replacement operation based on the doffing command signal.
Each locking piece 25, 28A ~
The interval between 28D is set to an integral multiple of the pitch p of the 9 rows of spindles.

The locking pieces 25, 28A to 28D and the supporting mechanism thereof are also equipped on the rear side L of the machine base 1, and the air cylinder 32 on the take-out conveyor 3 side shown in FIG. It drives a locking piece similar to 28D, and is operated prior to the pipe replacement operation based on the doffing command signal. In addition,
On the rear side of the machine base 1, a locking piece corresponding to the locking piece 25 is installed corresponding to the end of the row of the spindle 9 on the side opposite to the takeout conveyor 3 side.

Below the spindle rail 11, a power cylinder mechanism 33 that constitutes a pipe replacement means is installed.
The bobbin catcher 35, which is moved up and down through the link mechanism 34 by the projecting and retracting movement of the 33a, can collectively hold the bobbin 36 on the spindle 9 and the same number of empty bobbins 37 on the transfer rails 13 and 16. The power cylinder mechanism 33 is operated based on the transmission of the doffing command signal, and the empty bobbin 37 on the transfer rails 13 and 16 and the full bobbin 36 on the spindle 9 are exchanged via the intermediate peg 10.

Now, after the bobbin-equipped peg tray 6 is arranged on the transfer rails 13 and 16 corresponding to the 9 rows of spindles by pipe replacement, the air cylinders 14, 17, 20, 31, and 32 are in the retracted state shown in FIG. (Hereinafter referred to as the initial state), the locking pieces 25, 28A ~
28D is in the stored and projected state shown in FIGS. 3 and 8 with respect to the storage cylinders 22 and 23. When the full bobbin request signal on the winder 8 side is transmitted, the reciprocating operation of the transfer rails 13 and 16 and the feed lever 19 is repeated by the predetermined retracting operation of the air cylinders 14, 17 and 20. Transfer rail 13 shown by arrow P in FIGS.
By the reciprocation of 16, the peg trays on both transfer rails 13 and 16 move over the locking piece 25 integrally with the transfer rails 13 and 16 to the positions shown in FIGS. 3 and 8, and the arrows Q in FIGS. When the transfer rails 13 and 16 are returned, the tip of the locking piece 25 enters the recess 5a of the peg tray as shown in FIGS. 4 and 9 to prevent the peg tray from retreating. Therefore, as shown in FIGS. 8 and 9, the peg trays 5A and 5A are moved by one reciprocating movement of the transfer rails 13 and 16.
B, 5C, 5C ', 5D are transferred on the transfer rails 13 and 16, and the peg tray 5 with an empty bobbin on the supply conveyor 2 is transferred on the transfer rails.
13 will be supplied sequentially. When the peg trays on the transfer rails 13 come into contact with the direction change rails 18, they are fed one by one to the direction change rails 18 side by the feed levers 19, and the peg trays on the transfer rails 16 are moved to the take-out conveyor 3 side 1
It is discharged one by one. This transfer operation is repeated until the count number of the peg tray passing through the counting device 21 reaches a predetermined value. When the counting device 21 counts up, the transfer operation stops, the air cylinders 14, 17, 20 return to the initial state shown in FIG. 1, and the empty bobbin-equipped peg tray 5 on the transfer rails 13, 15 moves to the positions shown in FIGS. Mounted and held in the state shown. Figures 4 and 9 show the state in which this count number has reached a specified value, and the transfer rails 13 and 1 corresponding to the 9 rows of spindles.
A peg tray 5 with an empty bobbin replaces the peg tray 6 with a full bobbin above 6.

In general, the diameter of the peg tray is given an error δ (about 0.1 mm) to the negative side with respect to the pitch p of the 9 rows of spindles. Therefore, as shown in Figs. 4 and 9, the transfer rail 1
In the state where full / empty bobbins are replaced on 3,16, the error δ of each peg tray is accumulated between the peg tray with empty bobbin 5A and the following peg tray with empty bobbin 5D (the number of spindles 9 on one side of the machine base x δ = Δ1).

After that, when the doffing command signal is issued, the air cylinder 3 is moved prior to the pipe changing operation of the power cylinder mechanism 33.
1, 32 are actuated, and as shown by the arrow S in FIGS. 5 and 10, the drive rod 24 moves in the direction opposite to the original transfer direction of the peg tray and also returns in the peg tray transfer direction. Before the locking pieces 28A to 28D enter the recesses 5a of the empty bobbin-equipped peg trays 5C and 5C 'by the forward movement of the drive rod 24, the locking pieces 25A to 28D are engaged.
Is retracted from the recess 5a of the empty bobbin-equipped peg tray 5A and is stored in the storage cylinder 22. Then, as the locking piece 25 withdraws from the recess 5a, the locking pieces 28A to 28D sequentially enter into the recess 5a of the empty bobbin-equipped peg trays 5C, 5C 'from the side of the locking piece 28A, and engage with the empty bobbin. The peg tray 5 is pushed on the transfer rails 13 and 16 by the locking pieces 28A to 28D. The order of entry and engagement of the locking pieces 28A to 28D is set by adjusting the mounting position of each storage cylinder 23, and by this setting, the peg tray with an empty bobbin is set.
The engaging pieces 28A to 28D are surely engaged with the recesses 5a of the 5C and 5C '. As a result, as shown in FIGS. 5 and 10, the empty bobbin-equipped peg tray 5 on the transfer rails 13 and 16 has a space Δ2.
Group n with (cumulative error Δ1 ÷ number of locking pieces 28A to 28D)
Units are arranged on the transfer rails 13 and 16. The positional relationship between the locking pieces 28A to 28D shown in FIG. 9 and the empty bobbin-equipped peg trays 5C and 5C ′ is shown in FIG. 4, and when the empty bobbin-equipped peg trays 5C and 5C ′ are stacked. Each locking piece 28A ~ 28
The relative positional relationship of D is shown. Each locking piece 28A ~ 28D
The shafts 29A to 29D for supporting the shafts are separated from each other by a distance Δ2, and because of this relationship, the accumulated error Δ1 is equal to the distance Δ2 between the groups n units.
Evenly distributed over. Therefore, as shown in FIG.
~ 28D peg tray with empty bobbin 5C, 5C '
Air cylinder 3 so that the
By setting the stroke amount of 1,32 and appropriately setting the number of peg trays forming the group n, the empty bobbin-equipped peg trays 5 are accurately arranged at the pipe replacement positions on the transfer rails 13 and 16. Therefore, even when the empty bobbin-equipped peg tray 5 is displaced from the pipe replacement position, this displacement is eliminated by the positioning operation of the peg tray positioning means including the air cylinders 31, 32 and the locking pieces 28A to 28D. The work is performed without any problems. Such a positioning operation independent of the transfer operation can sufficiently eliminate the overrun of the peg tray due to the increase in the transfer speed of the peg tray, and the transfer speed can be increased.

Further, since the positioning operation of the peg tray positioning means is performed only once between tube replacements, there is no wear damage to the locking pieces 28A to 28D supported by the shafts 29A to 29D, and the locking pieces 28A to 28D are not damaged.
The positioning accuracy of A to 28D does not change over time. Moreover, even when the type of the peg tray used is changed, the engaging pieces 28A to 28D are surely engaged with the recesses of the peg tray by appropriately adjusting the mounting position of the storage cylinder 23, which is appropriate. It is possible to achieve positioning accuracy.

In this embodiment, the positioning operation is performed immediately before the pipe replacement, so that the displacement due to the machine base vibration does not occur. Of course, it is also possible to perform the positioning operation at any time within a range in which the displacement due to the machine base vibration does not hinder the pipe replacement work.

In addition, the number of constituent peg trays of the group n is the inner diameter of the recess 5a.
D1 and the diameter of the peg 5b shown in FIG. 3 are set to D2, and the following relationship may be satisfied.

(1/2) × D2> δ × (number of constituents of group n)> 0 The present invention is not limited to the above embodiment, of course. For example, a plurality of peg tray transfer locking pieces 25 are arranged at predetermined intervals. However, it is also possible to further divide the group N equally divided by the plurality of locking pieces 25 into small groups by the positioning locking pieces as in the above embodiment. In this case, the group N and the number of constituent peg trays of the group n may satisfy the following relationship.

(1/2) × D2 <δ × (number of constituents of group N) <D1 (1/2) × D2> δ × (number of constituents of group n)> 0 Further, the dispersion interval of the cumulative error Δ1 in the above embodiment. Can be configured to be unequal between the groups n as long as it is within the allowable range. Further, the peg tray mounting transfer means is not limited to the above-described reciprocating drive of the transfer rail and the combination of the locking pieces 25, A belt transfer system in one direction may be used.

Advantageous Effects of Invention As described in detail above, according to the present invention, a peg tray mounting transfer means having a peg tray mounting transfer member for mounting and transferring a peg tray along a spindle row, and a peg tray mounted on the mounting transfer member are provided. Full and empty by peg tray positioning means which is arranged to each tube replacement position on the mounting transfer member by a positioning and feeding operation independent of the transfer operation of the peg tray mounting and transferring means and in a direction opposite to the original transfer direction of the peg tray. Since the bobbin transfer device is configured, there is an excellent effect that both high-speed transfer of the full bobbin-equipped peg tray and positioning accuracy of the empty bobbin-equipped peg tray that does not hinder pipe replacement work can be achieved.

[Brief description of drawings]

The drawings show an embodiment embodying the present invention. FIG. 1 is a schematic plan view of a spinning machine stand row and winder, and FIG. 2 is a partially omitted front view showing the spinning machine stand and an empty bobbin supply mechanism. Figure, third
5 to FIG. 5 are all front cross-sectional views of the main part, and FIG. 6 is A- of FIG.
A sectional view taken along the line A, FIG. 7 is a sectional view taken along the line BB of FIG.
FIG. 10 is a schematic front sectional view for explaining transfer and positioning of the peg tray. Peg trays 5, 5A, 5B, 5C, 5C ', 5D, 6, spindle 9, transfer rails 13 and 16 as mounting transfer members, locking pieces 25 constituting peg tray transfer means, and air cylinders 14 and 1 as well.
7. Locking pieces 28A, 28 forming the peg tray positioning means
B, 28C, 28D, air cylinders 31, 32 as well.

Claims (1)

(57) [Claims] 1. A full / empty bobbin transfer device in a spinning machine, etc., in which a full bobbin on a spindle of a spinning machine or the like is exchanged with an empty bobbin via a peg tray. The peg tray mounting transfer means equipped with a peg tray mounting transfer member for mounting and transferring at a pitch of about half or half of the pitch, and the transfer operation of the peg tray mounting transfer means is independent of the transfer direction of the peg tray. Full / empty bobbin transfer device in a spinning machine or the like, which comprises peg tray positioning means for arranging a peg tray mounted on the mounting transfer member at each pipe replacement position on the mounting transfer member by a positioning feeding operation to the mounting transfer member.