JPH11116143A - Bobbin carrying device for spinning machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bobbin carrying device which carries a peg tray with reciprocation of a transfer rail equipped with a locking projection to move the peg tray consolidatedly in the feeding direction, wherein plastic deformation of a guide member is precluded even if clogging is generated in the peg tray with wind cotton, etc. SOLUTION: When a transfer rail 6 is moved to a peg tray feeding side, a peg tray 2 moves in a single piece with the transfer rail 6 in such a condition as engaged by a locking projection 6a provided on the oversurface of the transfer rail 6. When the transfer rail 6 is moved to side opposite the peg tray feeding side, the motions of the peg tray are restricted by the locking part, and the projection 6a heaves the peg tray 2 and passes under. A pressure reducing valve 22 is installed on the way of a line 18 for driving air cylinders 12 and 13 for driving the rail 6 to the tray feeding side. The air pressure when the rail 6 is moves to the tray feeding side is set lower than the air pressure when the rail 6 is to be moved to the return side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bobbin conveying device in a spinning machine such as a ring spinning machine and a ring twisting machine, and more particularly, to a bobbin conveying device intermittently transferred in a predetermined direction by a transfer member reciprocating along a peg tray passage. The present invention relates to a bobbin transport device that transports a bobbin using a peg tray.

[0002]

2. Description of the Related Art In this type of spinning machine, an empty bobbin is supplied to a front surface of the spinning machine in a state corresponding to a spindle pitch in order to facilitate an automatic refilling operation by a refilling device at the time of a refilling operation accompanied by full filling. A transport device for discharging the doffed full bobbin is required. Further, a spinning winder in which a spinning machine and a winder are connected by a conveyor device, and an empty bobbin and a full bobbin are directly conveyed between the spinning machine and the winder has been proposed and implemented. For the transfer of empty bobbins and full bobbins, a transfer device using a tag tray is often used.

A transfer apparatus of this type is disclosed in Japanese Patent Laid-Open Publication No.
No. 5727 discloses a peg tray which can be mounted in a single row and is reciprocally driven by an air cylinder so that the peg tray can be reciprocated along a row of spindles. There has been proposed a transfer device provided with a restricting member for restricting the movement of the peg tray and sequentially transferring the peg trays by reciprocating the transfer member. In order to surely move the peg tray together with the transfer member during the forward movement, an apparatus has been proposed in which locking projections are formed on the upper surface of the transfer member at intervals equal to the spindle pitch (for example, Japanese Patent Laid-Open No. 4-174727). .

In the above-mentioned conventional apparatus, the peg tray is intermittently transported one pitch at a time in correspondence with the pitch of the spindle. Therefore, the number of reciprocating movements of the transfer member for moving the peg tray increases according to the number of spindles,
In the case of a long machine stand, the time required for carrying out the full bobbin and completing the supply of the empty bobbin may be longer than the doffing cycle. When the driving speed of the driving means is increased to shorten the bobbin transport time, the load increases and the durability deteriorates.
In order to solve this inconvenience, Japanese Patent Application Laid-Open No. Hei 9-132828 discloses that a single stroke of the transfer member for moving the peg tray along the spindle row is set to a plurality of times or more of the spindle pitch, and the peg tray in the single row state is adjusted to the spindle pitch. A bobbin transfer device that moves a plurality of times has been proposed. In this bobbin transfer device, even in the case of a long machine stand, the time required for unloading the full bobbin and completing the supply of the empty bobbin can be shortened more reliably than the doffing cycle.

A transfer member having a locking projection protruding in accordance with the spindle pitch moves when the locking projection is engaged with the peg tray when moving to the feed side, while moving toward the return side. At the time of movement, the peg tray is hung by the regulating member and moves so as to pass below the peg tray in a state where the movement is regulated, while the locking projection pushes up. Therefore, the driving force required to move the transfer member to the return side is larger than the driving force required to move the transfer member to the feed side. In the conventional apparatus, a double-acting air cylinder is used as a driving unit for driving the transfer member, and air having the same pressure based on the required driving force is supplied to the return side even when the transfer member reciprocates. .

[0006]

There is no problem when the transfer device is operating normally, but there is a problem when the peg tray is transported poorly due to fly waste or the like accumulated on the movement path of the peg tray. Occurs. Because, when the air cylinder is driven, an excessive load is applied to the air cylinder, and if the protrusion or the immersion of the piston rod is not completed within a predetermined time, the air cylinder is stopped abnormally. However, in the conventional device, the driving force of the peg tray to the feed side is set to be larger than the driving force required for feeding the peg tray. Therefore, even if the peg tray cannot be moved in the feed direction due to clogging of fly cotton or the like, the air cylinder is not overloaded, and the transfer member is driven in the feed direction, and can be moved in the feed direction by clogging of fly cotton or the like. Excessive force is applied to the peg tray after the missing peg tray from the locking projection. As a result, there is a case where the peg tray moves in the lateral direction and plastically deforms the pair of guide members in a direction in which the widths of the guide members increase. If the guide member is plastically deformed in an expanded state, the peg trays cannot be aligned in a straight line corresponding to each spindle at a position along the spindle rail, which hinders the pipe replacement operation. This problem becomes remarkable particularly in the case of a configuration in which the transfer member is driven with a stroke that is a multiple of the spindle pitch.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a locking projection which engages with a peg tray when moving in a peg tray feed direction to integrally move the peg tray. Reciprocating movement of the transfer member
An object of the present invention is to provide a bobbin transport device for a spinning machine that can prevent a plastic deformation of a guide member even if a clogging of a peg tray passage with fly cotton or the like is performed in a bobbin transport device that intermittently moves a peg tray.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, a peg tray having a peg for inserting a bobbin on an upper surface and a locking recess on a lower surface is guided in a line. And a peg tray passage extending in the lower part of the machine along the longitudinal direction thereof, and when a force in a direction opposite to the feeding direction acts on the peg tray, the peg tray engages with the locking recess of the peg tray and moves. A plurality of locking portions displaceably disposed at a retracted position allowing passage of the peg tray when moving in the peg tray feed direction, and reciprocating along the peg tray passage, When moving in the peg tray feed direction on the upper surface, it engages with the peg tray to move the peg tray integrally, and when moved in the opposite direction, the movement is regulated by the action of the locking portion. A transfer member in which locking projections that can push up the peg tray in the set state and pass below it are formed at intervals equal to the spindle pitch, and an air cylinder that drives the transfer member with a stroke greater than the spindle pitch. In the bobbin transport device in the spinning machine, the driving force in the moving direction acting on the transfer member when moving the transfer member to the peg tray feed side is moved in the movement direction acting on the transfer member when moving the transfer member to the return side. A driving force adjusting means for weakening the driving force is provided.

In the invention according to claim 2, the driving force adjusting means includes a pressure reducing valve provided in the middle of an air supply pipe for driving the air cylinder to a peg tray feed side.

According to a third aspect of the present invention, in the first or second aspect of the invention, the driving force adjusting means is provided in the middle of an air supply pipe for driving the air cylinder to a peg tray feed side. The pressure of the air supplied to the air cylinder can be changed by a command from the control means.

According to a fourth aspect of the present invention, in the first aspect of the present invention, one stroke of the transfer member is set to be more than a multiple of a spindle pitch. I have.

According to the invention described in claim 5, in the invention described in any one of claims 1 to 4, the peg tray passage restricts the lateral movement of the peg tray while the peg tray is supported. A pair of guide members formed such that the transfer member is reciprocally movable at the center of the guide member, and the locking projection is inserted into the locking recess of the tag tray. Engage with the tray.

According to the first aspect of the present invention, the bobbin is conveyed with the movement of the peg tray in a state of being mounted on the peg tray having the peg on the upper surface. When the transfer member is moved in the peg tray feed direction, the peg tray moves integrally with the transfer member in a state where the peg tray is engaged with the locking projection projecting from the upper surface of the transfer member. When the transfer member is moved in the direction opposite to the peg tray feeding direction, the locking portion engages with the locking recess on the lower surface of the peg tray, and the movement of the peg tray is regulated. When the transfer member moves in the opposite direction, the locking projection pushes up the peg tray whose movement is restricted by the action of the locking portion and passes below the peg tray.
The driving force in the movement direction acting on the transfer member when moving the transfer member to the peg tray feed side is a driving force adjusting means based on the drive force in the movement direction acting on the transfer member when moving the transfer member to the return side. Is adjusted weakly.

According to the second aspect of the present invention, when the air cylinder is driven to the peg tray feeding side, the driving force adjusting means supplies the driving force to the air cylinder by a pressure reducing valve provided in the air supply pipe. The supplied air pressure is lower than the air pressure supplied at the time of driving to the return side. Therefore, the driving force of the air supplied to the air cylinder is smaller than when driving to the return side.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the driving force adjusting means is more emptied by the command from the control means than when the transfer member transfers the full bobbin. The pressure of the supply air when transferring the bobbin is adjusted to be low.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the stroke of the peg tray along the path of the peg tray is a multiple of the spindle pitch or more. Is intermittently moved by a plurality of times of the spindle pitch by the transfer member reciprocated at. Therefore, the number of reciprocating movements of the transfer member is less than half.

In the fifth aspect of the present invention, the tag tray is supported by the guide member, and the transfer member plays a role of transferring and positioning the tag tray. When the transfer member moves in the peg tray feed direction, most of the load of the full bobbin and the empty bobbin mounted on the peg tray is carried by the guide member, and the transfer member is moved with a force against sliding friction between the peg tray and the guide member. You.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 2 (a)
As shown in FIG. 1, on the left and right sides of a spinning frame base 1 serving as a spinning frame, first and second transfer devices T1 and T2 constituting a tag tray passage for transferring a tag tray 2 are provided on the spinning frame base 1. They are arranged along the longitudinal direction. Double transport device T
The first ends of T1 and T2 are connected to each other via a guide passage 3 as a connecting portion. An empty bobbin carry-in conveyor 4 is connected to a second end of the first transfer device T1, and a full bobbin carry-out conveyor 5 is connected to a second end of the second transfer device T2, respectively. A full bobbin and an empty bobbin are conveyed and supplied to and from a winder process (neither is shown).

As shown in FIG. 4A, a pair of transfer rails T1 and T2 are used as a transfer member, similarly to a conventional apparatus (for example, disclosed in Japanese Patent Application Laid-Open No. 63-275727). 6 and a guide cover 7 as a guide member
And a positioning member 8. The peg tray 2 has a peg 2a on the upper surface on which the bobbin B is mounted, and a locking recess 2b on the lower surface. The guide cover 7 is provided on the transfer rail 6 of the tag tray 2 mounted on the transfer rail 6.
The peg tray passage is constituted by suppressing the lateral displacement from the moving direction of the peg tray. The positioning member 8 is disposed inside the transfer rail 6 so as to extend along the longitudinal direction of the transfer rail 6, and a locking projection 8a as a locking portion engageable with the locking recess 2b has the same interval as the spindle pitch. And a large number of saw blades. The positioning member 8 is vertically movably supported via a leaf spring 10 so that the positioning protrusion 8a can be disposed at a position corresponding to the spindle 9 so as to enter the locking recess 2b. The movement of the rail 6 to the forward movement side (peg tray feed side) is permitted, and the movement of the rail 6 to the backward movement side (return side) is restricted.

The transfer rail 6 has a guide groove 11a formed on the upper surface of the bracket 11 inside the guide cover 7.
Are supported so as to be able to reciprocate along the spindle row in a state in which they are engaged. The transfer rail 6 is formed so that the peg trays 2 can be mounted in a single row. On the upper surface of the transfer rail 6, locking projections 6a (shown in FIG. 3) are provided at predetermined intervals equal to the diameter of the PEG tray 2, that is, at intervals equal to the spindle pitch. When the transfer rail 6 moves forward (moves to the peg tray feed side), the locking protrusion 6a moves the
And the peg tray is integrally moved by restricting the relative movement between the peg tray 2 and the transfer rail 6 by engaging with the outer peripheral surface of the peg tray.
When the transfer rail 6 is moved back (moved to the return side), the pecking tray 2 whose movement is restricted by the action of the locking projection 8a is pushed up and can pass below it.

The transfer rail 6 is a piston rod 12 of air cylinders 12 and 13 (shown in FIGS. 1 and 2) arranged below the transfer rail 6 on the end side of the spinning frame 1.
a, 13a via a connecting member 14 (shown only in FIG. 1). The strokes of the air cylinders 12 and 13 are set slightly larger than twice the spindle pitch.
Are integrally reciprocated along the spindle row with a stroke slightly larger than twice the spindle pitch. And the first transfer device T1 is out-end O
The egg tray 2 is transferred from the E side to the gear end GE side,
The second transfer device T2 transfers the egg tray 2 from the gear end GE side to the out end OE side. Each of the air cylinders 12 and 13 is connected to the guide cover 7.
2 (a), it is shown on the side of the guide cover 7 for convenience.

The guide passage 3 has both ends formed in a substantially arc shape and a substantially U-shaped plane in order to enable the smooth transfer of the peg tray 2 between the two transfer devices T1 and T2. . As shown in FIGS. 3 and 4B, the guide passage 3 is provided with a base plate 15 slidably supporting the peg tray 2 and a base plate 15 via a bracket 16.
And a guide bar 17 that is supported on the top and engages with the peg 2a of the peg tray 2 to regulate the moving direction thereof. The base plate 15 is arranged so that its upper surface is flush with the upper surface of the transfer rail 6.

When the transfer rail 6 moves to the second end side, two positions are provided at positions corresponding to the outlet portion T1a of the first transfer device T1 and the inlet portion T2a of the second transfer device T2. A support portion (not shown) for supporting and supporting the tag tray 2 is provided. The support portion is formed integrally with the base plate 15 and protrudes from both ends of the base plate 15 so as to extend between the transfer rails 6. In addition,
For convenience of the drawing, the length of the guide passage 3 is shown in FIGS.
And are shown in different states. Both transfer devices T1, T2
Has basically the same configuration as that described in JP-A-9-132828.

As shown in FIGS. 1 and 2 (b), the air cylinder 12 is located at the piston end and the air cylinder 13 is located at the piston rod end.
Is connected to an output port A of a solenoid valve 19 serving as a control valve via a pipe 18 serving as an air supply pipe for driving the valve to the peg tray feed side. Further, the piston rod side end of the air cylinder 12 and the air cylinder 1
3 is connected to a solenoid valve 19 via a pipe 20 as an air supply pipe for driving the piston to the return side.
Output port B. Solenoid valve 1
9 is connected to a compressed air source (not shown) via a pipe 21. As the solenoid valve 19, a directional control valve that switches between four ports and three positions is used. The solenoid valve 19 is connected to the pipe 20 when air is supplied to the pipe 18.
Is connected to the exhaust port E, and the pipe 18 is connected to the exhaust port E when air is supplied to the pipe 20. The solenoid valve 19 is connected to the control device C (FIG. 2).
(Shown in FIG. 2).

In the middle of the pipe 18, a driving force acting on the transfer rail 6 in the moving direction when the transfer rail 6 is moved to the peg tray feed side is used, and the transfer rail 6 when the transfer rail 6 is moved to the return side. There is provided driving force adjusting means for weakening the driving force in the moving direction acting on the driving force.
In this embodiment, a pressure reducing valve 22 is provided as a driving force adjusting means. The pressure of the compressed air supplied from the compressed air source is set to a pressure suitable for moving the transfer rail 6 in the return direction. The pressure reducing valve 22 reduces the pressure of the compressed air supplied from the pipe line 21 to a predetermined pressure suitable for driving the transfer rail 6 in the peg tray feed direction and supplies the pressure to the air cylinders 12 and 13. I have. The degree of pressure reduction in the pressure reducing valve 22 varies depending on the number of peg trays to be transferred and the like. For example, in the case of a long base having a weight of about 800 to 1000 weights, a pressure reducing apparatus of about 80% is used, and a weight of 400 to 500 weights is used. 6 for normal machine
A device that reduces the pressure to about a percentage is used.

As shown in FIG. 2, the air cylinders 12, 1
3 includes sensors S1a and S2a for detecting that the piston rods 12a and 13a are immersed,
Sensor S for detecting that 2a and 13a are in the protruding state
1b and S2b are provided. Each sensor S1a, S2a, S
1b and S2b are electrically connected to the control device C. The control device C controls the solenoid valve 19 based on output signals from the sensors S1a, S2a, S1b, S2b. In the control device C, the air cylinders 12, 13 are driven by the switching operation of the solenoid valve 19, and the air cylinders 12, 13 are normally driven by the output signals from the corresponding sensors S1a, S2a, S1b, S2b within a predetermined time. If this is not confirmed, it is determined to be abnormal. The solenoid valve 19 is arranged at a neutral position where the supply of air to the air cylinders 12 and 13 is stopped.

Next, the operation of the device configured as described above will be described. When the spinning frame 1 is stopped, the refilling operation by a refilling device (not shown) is completed, the full bobbin can be carried out and the empty bobbin can be supplied, and the full bobbin request signal is issued from the winder. The carrying out of the full bobbin from the spinning frame 1 and the carrying in of the empty bobbin into the spinning frame 1 are started. The air cylinder 12 of the first transfer device T1 is in the original position where the piston rod 12a is immersed, and the air cylinder 13 of the second transfer device T2 is the piston rod 13a.
Is the original position. Further, in this state, the tag trays 2 are placed on the transfer rails 6, the support portions and the guide passages 3 of the two transfer devices T1 and T2 in a state where they are in contact with each other.

In this state, the air cylinders 12 and 13 of the two transfer devices T1 and T2 are simultaneously operated based on a command from the control device C, and the transfer rail 6 moves forward with a stroke slightly larger than twice the spindle pitch. Peg tray 2
Due to the action of the locking projection 6 a protruding from the upper surface of the transfer rail 6, the transfer rail 6 is reliably transferred by the forward movement of the transfer rail 6 when the transfer rail 6 moves forward. Transfer rail 6 of second transfer device T2
With the forward movement, a space is formed at the entrance portion T2a of the second transfer device T2, where two peg trays 2 can be arranged.
Since the transfer rail 6 of the first transfer device T1 also moves forward at the same time, two peg trays 2 are pushed into the guide passage 3 with the forward movement, and are placed on the second end side of the guide passage 3. The two tag trays 2 placed are sequentially fed into the space, that is, the bearing.

When the movement of the transfer rail 6 is completed, the locking projection 8a of the positioning member 8 enters the locking recess 2b of the peg tray 2, and a gap is generated between the locking recess 2b and the locking projection 8a. It is arranged in the state. When the transfer rail 6 moves backward, the locking projections 8a that have entered the locking recesses 2b engage with the locking recesses 2b to prevent the peg tray 2 from retreating. 9 is arranged at a predetermined pipe replacement position. When the transfer rail 6 is moved backward, the locking projection 6a pushes up the tag tray 2 whose movement is restricted by the action of the locking projection 8a and passes below it. Also, the second transfer device T2
When the transfer rail 6 moves backward, the guide tray 3 supported by the support section is engaged with the guide path 3 via the locking projection 6a.
The push-in force acts on the side, but since the tag tray 2 is in contact with the tag tray 2 in the guide passage 3,
The movement is regulated and held on the bearing.

Hereinafter, similarly, the controller C
The detection signals from 1a, S2a, S1b, and S2b are input to confirm the immersion and protrusion states of both piston rods 12a, 13a, and both air cylinders 12, 13 simultaneously move forward and backward the transfer rail 6 respectively. So that the air cylinder 12,
Activate 13. Therefore, two peg trays 2 on the transfer rail 6 of the second transfer device T2 are unloaded onto the full bobbin unloading conveyor 5 at a time. In addition, two peg trays 2 are supplied on the transfer rail 6 of the first transfer device T1 in order from the empty bobbin carry-in conveyor 4, and the peg tray 2 on which the full bobbin or the empty bobbin is mounted is passed through the guide passage 3. Are sequentially transferred two by two from the first transfer device T1 to the second transfer device T2. When a predetermined number of the empty trays 2 with the empty bobbins mounted thereon are arranged on both transfer devices T1 and T2, the discharge of the full bobbin and the transfer of the empty bobbin are completed.

The pressure of air supplied to the air cylinders 12 and 13 when the transfer rail 6 is moved in the feed direction of the peg tray 2 is reduced by a pressure reducing valve 22 to a pressure suitable for driving the transfer rail 6 and supplied. . Therefore, when the load in the feed direction of the peg tray 2 increases due to fly waste or the like clogged between the peg tray 2 and the guide cover 7, the driving force of the air cylinders 12 and 13 becomes insufficient, and the transfer rail 6 moves in the feed direction. Will not be moved. Then, since the predetermined signal is not input from the sensor S1a or the like within the predetermined time, the control device C determines that there is an abnormality and stops the operation command of the air cylinders 12, 13 to the solenoid valve 19. Therefore, the peg tray 2 is not moved in the feed direction by an excessive force.

This embodiment has the following effects. (A) The driving force acting on the transfer rail 6 when moving the transfer rail 6 (transfer member) in the feed direction of the peg tray 2 is the driving force acting on the transfer rail 6 when moving the transfer rail 6 in the return direction. It is set weaker. Therefore, even if the peg tray passage is clogged with fly cotton or the like, it is possible to prevent the guide cover 7 (guide member) from being plastically deformed, and to prevent trouble during pipe replacement work.

(B) The pressure reducing valve 2 serves as a driving force adjusting means for making the driving force for moving the transfer rail 6 to the peg tray feed side weaker than the driving force for moving the transfer rail 6 to the return side.
2 are used. Therefore, the driving force can be set to a predetermined value with a simple configuration, and the power consumption (compressed air consumption) is reduced.

(C) The pressure reducing valve 22 is an air cylinder 1
2 and 13 are provided in the middle of an air supply pipe 18 for driving the peg tray feed side. Therefore, the driving force adjusting means can be attached to the existing device with a simple modification.

(D) Since both the transfer devices T1 and T2 are simultaneously operated in the transfer direction of the page tray 2 and simultaneously operated at the time of the backward movement, the two air cylinders 12 and 13 are operated by one solenoid valve 19. The supply of compressed air to the system can be controlled. Therefore, the control becomes easy, and the manufacturing cost of the device is lower than when a solenoid valve is provided for each air cylinder.

(E) One stroke of the transfer rail 6 for intermittently moving the dog tray 2 at a predetermined pitch is set to be twice or more the spindle pitch, and the dog tray 2 is moved twice the spindle pitch. Therefore, the number of actuations of the air cylinders 12 and 13 for reciprocating the transfer rail 6 until the full bobbin is unloaded and the empty bobbin is supplied is １ ／ of the number of times when the stroke is one spindle pitch.
And the transfer time is greatly reduced. As a result, even when spinning a thick yarn with a long machine stand, the discharge of the full bobbin and the supply of the empty bobbin are surely completed within the doffing cycle, and a decrease in the operating rate of the machine stand is prevented. .

(Second Embodiment) Next, a second embodiment will be described with reference to FIGS. In this embodiment, the structure of the locking portion for preventing the movement of the tag tray when the transfer member moves in the opposite direction to the feed direction of the tag tray, the support state of the peg tray, and the support state of the transfer member are as described in the above embodiment. Different from form. Further, the point that each of the egg trays is positioned at a predetermined position corresponding to the spindle when the transfer member is moved to the tray feed side is basically different from the apparatus of the above-described embodiment. The basic configuration of this apparatus is the same as that of the transfer apparatus disclosed in Japanese Patent Application Laid-Open No. 9-49129 except that the stroke of the transfer member is almost twice the spindle pitch and the drive control method of the air cylinders 12 and 13 is different. is there. The same parts as those in the above embodiment are denoted by the same reference numerals, and detailed description is omitted.

As shown in FIGS. 6 and 7, the guide member 2
3a and 23b are formed to bend so as to support the PEG tray 2 on the outer bottom surface of the locking concave portion 2b, and are fixed to a frame 24 of the spinning frame by a stud 25 fixed in a direction perpendicular to the longitudinal direction of the frame. Supported. Stud 2
5, a ball bearing 26 is supported at a position corresponding to the center of the guide members 23a and 23b. The locking transfer rail 27 as a transfer member is supported by a ball bearing 26 and cannot move up and down.
And a base end thereof is connected to a piston rod (neither is shown) of an air cylinder via a connecting member. The locking transfer rail 27 is arranged at the reference position so that the locking protrusions 27a formed at intervals equal to the spindle pitch abut against the wall surface of the locking recess 2b of the peg tray 2.

As shown in FIGS. 5A and 5B, a locking lever 28 serving as a locking member is disposed below the locking transfer rail 27 in parallel with the stud 25 for supporting the ball bearing 26. The supporting shaft 29 is rotatably supported. The support shaft 29 is not provided for each stud 25, but is provided at a position corresponding to a part of the studs 25. The locking lever 28 includes a pair of locking pieces 28a and 28b disposed so as to sandwich the locking transfer rail 27. As shown in FIG. 7B, both locking pieces 28a and 28b are the first locking pieces 28a and 28b.
It is continuous on the end side and connected by bolts 30 on the second end side as shown in FIG. In the state where the locking transfer rail 27 is located at the reference position, as shown by a solid line in FIG. 5B, the locking lever 28 is moved by its own weight to the locking position side, that is, the locking pieces 28a as locking portions. 2
8b is urged in a direction to protrude into the locking recess 2b of the peg tray 2. Then, the rotation of the stud 25 is restricted by contacting the stud 25, and the stud 25 is held at the locking position in a state of rising forward. In this state, a gap Δa exists between the first end surface of the locking lever 28 and the inner wall surface of the locking recess 2b.

In this embodiment, the locking transfer rail 27 is reciprocated by the operation of the air cylinder. During forward movement (movement to the left in FIGS. 5A and 5B), the locking transfer rail 27 moves independently below the peg tray 2, and the upper surface of the locking protrusion 27 a is positioned on the bottom surface of the peg tray 2. From the point of engagement with the peg tray 2
7 and move together. However, the peg tray 2 moves by Δa from the position corresponding to the spindle 2 and
After the abutment with the locking lever 28, the movement is restricted, and only the locking transfer rail 27 moves to a predetermined position. After the locking concave portion 2b comes into contact with the locking lever 28, the locking convex portion 27a
Pushes up the peg tray 2, passes under it, and enters the locking recess 2 b of the next peg tray 2.

When the locking transfer rail 27 moves backward (FIG. 5)
At the time of (a) and (b) moving to the right), each locking projection 27a locks with the locking recess 2b of each peg tray 2, and each peg tray 2 is integrated with the locking transfer rail 27. It is moved and positioned in a position corresponding to each spindle 9. Therefore, when the locking transfer rail 27 is reciprocated and returns to the reference position by the backward movement, each peg tray 2 is placed in a state where it is positioned at a position corresponding to each spindle 9 as in the first embodiment. .

This embodiment has the following effects in addition to the effects (a) to (e) of the first embodiment. (F) The support of the peg tray 2 is the guide members 23a, 2
3b, the locking transfer rail 27 may move the peg tray 2 by a predetermined pitch. Therefore, the driving force for reciprocating the locking transfer rail 27 can be reduced, and power consumption (compression air consumption) is reduced.

(G) Since the locking transfer rail 27 is supported by the ball bearing 26, the frictional resistance during the reciprocating movement is reduced as compared with the case where the locking transfer rail 27 is supported so as to be able to reciprocate while engaging with the guide groove. Less.

(H) Locking convex portion 2 of locking transfer rail 27
7a, the peg tray 2 is moved while being locked in the locking recess 2b of the peg tray 2. Therefore, unlike the first embodiment, the locking projection 27a is always in the peg tray 2 position.
Located below. Accordingly, compared to the first embodiment, fly waste is less likely to be deposited on the locking projection 27a.

Third Embodiment Next, a third embodiment will be described with reference to FIG. In this embodiment, the driving force adjusting means is provided independently for each of the air cylinders 12 and 13 and the driving force adjusting means can change the pressure of the supplied air in accordance with a command from the control device C. Are significantly different from the above-described embodiments. The same parts as those in the above embodiment are denoted by the same reference numerals, and detailed description is omitted.

As shown in FIG. 8, the branch 18a of the pipeline 18
Further, a driving force adjusting means is provided on each of the air cylinders 12 and 13 side. The driving force adjusting means includes two types of pressure reducing valves 22 and 31 having different degrees of pressure reduction, and an electromagnetic switching valve 32 for switching between two positions. The pressure reducing valve 31 is a pressure reducing valve 22
Those with a greater degree of decompression are used. Specifically, the pressure reducing valve 31 is set to a pressure at which a driving force required for feeding the peg tray 2 can be obtained in a state where the empty bobbin is mounted on the peg tray 2.

The controller C determines from the count value of a counter (not shown) whether or not the number of times of operation of each of the air cylinders 12 and 13 has reached the number of times necessary to complete the unloading of the peg tray 2 with full bobbins. I do. The control device C keeps the compressed air supplied to the air cylinders 12 and 13 through the pipeline 18 with a small degree of decompression until the corresponding air cylinders 12 and 13 reach the number of operations for completing the unloading of the full bobbin. Control is performed such that the electromagnetic switching valve 32 is maintained in a state where the electromagnetic switching valve 32 is supplied through the pressure reducing valve 22. In this embodiment, the electromagnetic switching valve 32 is maintained in a demagnetized state. Air cylinder 1
When the number of actuations of the cylinders 2 and 13 reaches the number of times the unloading of the full bobbin is completed, the control device C sets the electromagnetic switching valve 32 to reduce the degree of pressure reduction of the compressed air supplied to the air cylinders 12 and 13 via the pipe 18. The electromagnetic switching valve 32 is switched to a state of being supplied through the pressure reducing valve 31. That is, the driving force adjusting means switches the pressure of the supply air to the air cylinders 12 and 13 by the command from the control means (control device C).
2, the pressure can be changed by selecting the pressure reducing valves 22 and 31 to be used.

This embodiment has the following effects in addition to the effects of the above embodiments. (I) Since the driving force adjusting means is provided with two types of pressure reducing valves 22 and 31 having different degrees of pressure reduction, the air cylinder 12 and the air cylinder 12 and the air bobbin feeding operation can be performed with a simple configuration while carrying out the full bobbin unloading and empty bobbin supplying operations.
The supply air pressure to the peg tray 13 can be changed, wasteful power consumption can be suppressed, and an unreasonable force acting on the peg tray 2 at the time of poor feeding of the peg tray 2 due to clogging of fly cotton or the like can be more reliably prevented.

(D) The driving force adjusting means is provided for each of the air cylinders 12 and 13.
Even if the air is supplied from one solenoid valve 19 to the air cylinder 3 at the same time, the pressure of the supplied air can be changed for each of the air cylinders 12 and 13. Therefore, when the unloading of the full bobbin on the corresponding transfer member (the transfer rail 6, the locking transfer rail 27) is completed, the electromagnetic switching valve 32 is switched so as to supply air through the pressure reducing valve 31 having a large degree of pressure reduction. By controlling, the transfer member can be driven in the peg tray feed direction with a more appropriate driving force when transferring the peg tray 2 with the empty bobbin mounted. As a result, it is possible to more reliably prevent an excessive force from acting on the peg tray 2 at the time of feeding failure due to clogging. Further, the air consumption can be further reduced.

The embodiment is not limited to the above, and may be embodied as follows, for example. ○ Instead of using a pressure reducing valve as a driving force adjusting means,
A spring may be provided to reduce the driving force of the compressed air when the air cylinders 12, 13 move in the peg tray feed direction. For example, in the air cylinder 12 of the first embodiment, as shown in FIG.
A guide rod 33 extending parallel to the piston 12a is fixed so as to be integrally movable. Then, the guide rod 33 is reciprocated while penetrating a hole formed in the bracket 34 provided at a predetermined position. A compression spring 35 is provided between the bracket 34 and the connecting member 14 so as to extend and contract along the guide rod 33. In the air cylinder 13, as shown in FIG. 9B, the guide rod 33 is fixed to a support bracket 36 of the air cylinder 13. The guide rod 33 passes through the hole formed in the connecting member 14 and
It extends parallel to a. Support bracket 36 and connecting member 14
A compression spring 37 is provided along the guide rod 33 therebetween.
In this embodiment, the compression spring 35 and the compression spring 37 constitute driving force adjusting means.

In these configurations, the air cylinders 12, 1
The pressure of the compressed air supplied to 3 is set the same in the peg tray feed direction and the return direction. However, when the pistons 12a and 13a are driven in the peg tray feed direction, the driving force is weakened by the compression spring 35 or the tension spring 37, and the driving force acting on the transfer rail 6 is reduced. On the other hand, when the pistons 12a and 13a are driven in the return direction, the urging force of the compression spring 35 or the tension spring 37 acts in the driving direction of the pistons 12a and 13a, so that the air driving force is not weakened. In this case, the configuration is simpler and the cost is lower than using a pressure reducing valve.

In the third embodiment, the electromagnetic switching valve 32 may be provided closer to the solenoid valve 19 than the pressure reducing valves 22 and 31. In this case, the same effect as in the third embodiment can be obtained.

The pressure of the air supplied to the air cylinders 12 and 13 is changed between the transfer of the peg tray with the full bobbin mounted and the transfer of the peg tray with the empty bobbin mounted. But not
The pressure of the air at the time of driving to the return side may be reduced. In this case, the effect of making it difficult for an excessive force to act when the feeding of the peg tray 2 is poor is the same as in the above-described embodiment, but the air consumption can be further reduced.

Instead of operating both transfer devices T1 and T2 simultaneously, the transfer rail 6 of the second transfer device T2 is reciprocated, and then the transfer rail 6 of the first transfer device T2 is reciprocated. It may be configured. In this case, the transfer rail 6 of the first transfer device T1 is reciprocated in a state where a space for mounting two peg trays 2 is secured at the inlet portion T2a of the second transfer device T2. There is no need to provide a bearing at T2a.

In the case where the two transfer devices T1 and T2 are sequentially driven, a solenoid valve 19 is required for each of the air cylinders 12 and 13. In this case, as shown in FIG.
A pressure reducing valve 22 is provided for each of the air cylinders 12 and 13 on the third side, and a common pressure reducing valve 38 and an electromagnetic switching valve 39 for both air cylinders 12 and 13 are provided in the pipeline 21. When driving the peg tray 2 on which the full bobbin is mounted, the electromagnetic switching valve 39 is kept in a state of supplying air without passing through the pressure reducing valve 38, and when driving the peg tray 2 on which the empty bobbin is mounted, The switching valve 39 is switched to a state in which air is supplied via the pressure reducing valve 38. In this configuration, when driving the peg tray 2 on which the empty bobbin is mounted, the air pressure is adjusted to be low not only in the peg tray feed direction but also in the return direction, and the air cylinders 12 and 1 are adjusted.
3 is driven with a more appropriate driving force. In this embodiment, the pressure reducing valves 22 and 38 and the electromagnetic switching valve 39 constitute driving force adjusting means.

The pressure reducing valve may have a structure in which the degree of pressure reduction can be changed at another stage or continuously by an electric signal. If this pressure reducing valve is used, for example, in the third embodiment, the driving force adjusting means having the structure composed of the pressure reducing valves 22 and 31 and the electromagnetic switching valve 32 can be replaced by the single pressure reducing valve, and the structure is simplified. . In addition, by gradually increasing the degree of decompression during the unloading operation of the peg tray 2 on which the full bobbin is mounted, the air cylinder 1
2 and 13 can be driven.

The guide passage 3 may be configured so that the peg trays can be fed into the second transfer device T2 in a state where the peg trays are in contact with each other. A feeding device (eg, a belt conveyor) for actively feeding the peg trays may be provided in the middle. Good. The strokes of the air cylinders 12 and 13 may be set to a value slightly larger than three times the spindle pitch, or a value slightly larger than an integral multiple of four or more. However, if it is larger than four times, the space for securing the stroke of the transfer rail 6 becomes large, which is not preferable.

The strokes of the air cylinders 12 and 13 are not limited to a plurality of times the spindle pitch, and may be applied to a device substantially equal to the spindle pitch, that is, to a device configured to intermittently move the peg tray 2 by one spindle pitch. Good.

Instead of connecting the spinning frame 1 to the winder, the first and the left and right sides extending from the left and right sides of the spinning frame 1 as in the device disclosed in JP-A-8-188340. The second transfer devices T1 and T2 are connected by a guide passage 3 on the first end side of the spinning frame, and both transfer devices are connected to the full bobbin unloading / empty bobbin supply device on the second end side of the spinning frame. May be applied to the device contacted via the.

The present invention is not limited to the ring spinning machine, but may be applied to a transfer device of another spinning machine such as a ring twisting machine. The inventions other than those described in the claims that can be grasped from the embodiment and the modified examples will be described below together with their effects.

(1) In the invention according to any one of claims 1 to 5, the egg tray passages are provided on both left and right sides along the longitudinal direction of the spinning machine stand, and are provided in each of the egg tray passages. The driven members are simultaneously driven in the transport direction of the tag tray, and are also simultaneously driven in opposite directions. In this case, the number of control valves is reduced as compared with a configuration in which the transfer member is sequentially driven, and the air piping connecting the air cylinder and the control valve is simplified and control is facilitated.

(2) In the third aspect of the present invention,
The driving force adjusting means includes two pressure reducing valves having different degrees of pressure reduction;
An electromagnetic switching valve for controlling air supply to both pressure reducing valves. In this case, the air pressure supplied to the air cylinder can be changed in the middle of full bobbin unloading and empty bobbin supply work with a simple configuration, and unnecessary power consumption can be suppressed. It is possible to more reliably prevent excessive force from acting.

(3) In the invention described in claim 3,
The tag tray passages are disposed on both left and right sides along the longitudinal direction of the spinning machine table, and the transfer members provided in each of the tag tray passages are sequentially driven, and the driving force adjusting means is connected to the air cylinder for driving each transfer member. Are provided for each of the air supply pipes. In this case, the air consumption can be reduced by lowering the air pressure at the time when the unloading of the full bobbin on the corresponding transfer member is completed.

(4) In the invention according to claim 2,
The pressure reducing valve can be changed continuously or at another stage according to a command from the control means. In this case, the air cylinders 12 and 13 can be driven with a more appropriate pressure by gradually increasing the degree of pressure reduction during the unloading operation of the peg tray 2 on which the full bobbin is mounted.

The “transfer member” referred to in this specification is
A long member that moves the peg tray only in the feed direction by reciprocating along a guide member that regulates the peg tray from shifting laterally and guides the movement in a straight line,
The present invention is not limited to the one in which the peg tray is mounted and moves, but also includes the one that plays only the role of moving the peg tray along the guide member.

[0066]

As described in detail above, claims 1 to 5 are provided.
According to the invention described in the above, by the reciprocating movement of the transfer member provided with a locking convex portion that engages with the peg tray when moving in the peg tray feed direction and integrally moves the peg tray,
In the bobbin transport device that intermittently moves the peg tray, even if the peg tray passage is clogged with fly cotton or the like, it is possible to prevent the guide member from being plastically deformed.

According to the second aspect of the present invention, the driving force for driving the transfer member to the peg tray feed side can be reduced with a simple configuration, and the air consumption can be reduced. Claim 3
According to the invention described in (1), the pressure of the air supplied to the air cylinder can be changed during the transfer operation by a command from the control means, and the plastic deformation of the guide member can be more reliably prevented.

According to the fourth aspect of the present invention, the number of reciprocating movements of the transfer member is less than half. According to the fifth aspect of the present invention, since the guide member supports the tag tray, the driving force (air consumption) for reciprocating the transfer member is smaller than when the transfer member mounts and moves the tag tray. it can.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a main part of a first embodiment.

2A is a schematic plan view of a transfer device, and FIG. 2B is an air supply circuit diagram.

FIG. 3 is a partial plan view showing the vicinity of a connection portion of the transfer device.

4A is a cross-sectional view illustrating a supporting state of a positioning member and a transfer rail, and FIG. 4B is a cross-sectional view illustrating a supporting state of a guide bar.

FIG. 5A is a partial plan view of a transport device according to a second embodiment, and FIG.

FIG. 6 is a cross-sectional view of the transfer device.

FIG. 7A is a sectional view taken along line AA of FIG. 5B;
(B) is a sectional view taken along the line BB of FIG. 5 (b).

FIG. 8 is an air supply circuit diagram according to a third embodiment.

FIG. 9 is a schematic side view showing a driving force adjusting unit according to another embodiment.

FIG. 10 is an air supply circuit diagram of another embodiment.

[Explanation of symbols]

1 ... spinning frame as spinning frame, 2 ... peg tray,
2a: peg, 2b: locking recess, 3: guide passage as connection part, 6: transfer rail as transfer member, 6a, 2
7a: locking projection, 7: guide cover as a guide member constituting a tray tray, 8a: locking projection as a locking portion, 9: spindle, 12, 13: air cylinder,
22 ... pressure reducing valve as driving force adjusting means, 23a, 23b
... Guide member, 27... Locking transfer rail as a transfer member, 31, 38.
2, 39: an electromagnetic switching valve; 35, 37: a compression spring constituting driving force adjusting means; C: a control device as control means; T1: a first transfer device; T2: a second transfer device.

Claims (5)

[Claims] 1. A peg tray passage extending along a longitudinal direction of a lower portion of a machine base so as to guide a peg tray having a peg for inserting a bobbin on an upper surface and a locking recess on a lower surface in a line. When a force is applied to the peg tray in a direction opposite to a feeding direction, the peg tray is engaged with a locking recess of the peg tray to prevent the movement thereof, and allows movement of the peg tray when moving in the peg tray feeding direction. A locking portion displaceably disposed at the retracted position, and reciprocated along the peg tray passage,
At the time of movement in the peg tray feed direction on the upper surface, the peg tray is engaged with the peg tray to move integrally, and at the time of movement in the opposite direction, the peg tray whose movement is regulated by the action of the locking portion is pushed up. In a bobbin transport device for a spinning machine including a transfer member having locking protrusions that can pass below the transfer member and formed at intervals equal to the spindle pitch, and an air cylinder that drives the transfer member with a stroke greater than the spindle pitch. A driving force that makes the driving force in the moving direction acting on the transfer member when moving the transfer member to the peg tray feed side weaker than the drive force in the movement direction acting on the transfer member when moving the transfer member to the return side. A bobbin transport device in a spinning machine provided with adjusting means. 2. The bobbin transport device in a spinning machine according to claim 1, wherein said driving force adjusting means includes a pressure reducing valve provided in an air supply pipe for driving said air cylinder to a peg tray feed side. 3. The driving force adjusting means is provided in the middle of an air supply pipe for driving the air cylinder to a peg tray feed side, and can change the pressure of air supplied to the air cylinder by a command from a control means. Claim 1
Or a bobbin transport device in a spinning machine according to claim 2. 4. The bobbin transport device in a spinning machine according to claim 1, wherein one stroke of the transfer member is set to be a plurality of times or more of a spindle pitch. 5. The tag tray passage includes a pair of guide members formed to restrict lateral movement of the tag tray while supporting the tag tray, and the transfer member reciprocates at the center of the guide member. The bobbin transport device in a spinning machine according to any one of claims 1 to 4, wherein the bobbin conveying device is arranged so as to be capable of engaging with the tag tray in a state in which the locking convex portion enters the locking concave portion of the tag tray. .