JPH03120171A - Package doffing device - Google Patents

Abstract

PURPOSE:To easily perform doffing of a large size package by providing a lift cover, which is removably inserted between a drum and the package to detach it from the drum, and an extruding lever which extrudes the package on the lift cover to the rear. CONSTITUTION:When a package P is placed in a full condition, a lift cover 13 is inserted between a rotating drum 3 and the package P from a standby position by driving a cylinder 16, and the package P is lifted, so as to be detached from the drum 3, and supported on the cover 13. Next a cradle operating lever 21 and an extruding lever 22 are turned to a unit side from the respective standby positions, and a stopper shaft 27 of the lever 21 is brought into contact with a cradle lever 10 to lift it, thereafter by press-opening the lever 10, the package P is opened from between a movable arm piece 6b and a fixed arm piece 6a. The package P is supported by the lever 13 and a stopper part 28 of the lever 22, further by lift turning the lever 22, the package P is extruded onto a conveyer 11.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a package doffing device for doffing a package formed by a winder, a winding section of a double twister, or the like.

[Prior art] For example, a double twister is made up of a number of units installed in parallel, and each unit has a heating section that heats the yarn from the yarn supply package, and a cradle arm that rotates the core tube by bringing it into contact with the drum. and a winding section for winding the thread from the heating section onto a core tube to form a package. FIG. 4 shows the winding section, and when the package P is grooved, it is automatically pulled up from above the drum 3 by a cylinder S connected to the cradle arm 6.

Conventionally, an operator has removed the trenching package P from the cradle arm 6, but there is a problem in that it requires a great deal of labor to manually doff a large number of units. Therefore, the present applicant previously proposed a system in which the above-mentioned packages are automatically doffed by a robot that runs along the unit and discharged onto the conveyor 11 located behind the drum 3. No. 1-63857), this is a system in which a package that is removed from a cradle arm and falls is discharged onto a receiving conveyor using a receiving tray.

[Problems to be Solved by the Invention] However, as the package becomes larger and heavier, there is a problem in that it becomes difficult to pull up the package using the cylinder, and it becomes impossible for the robot to doff the package.

SUMMARY OF THE INVENTION An object of the present invention is to provide a package doffing device that solves the above problems and can easily doff large packages.

[Means for Solving the Problems 1] In order to achieve the above object, the present invention provides a device for doffing a package formed on a drum to the rear of the drum, in which a device is inserted between the drum and the package so as to be freely inserted and removed. The device is equipped with a push-up cover that moves the package away from the drum, and a push-out lever that pushes the package on the push-up cover backward.

[Operation J] The grooved package is separated from the drum and pushed up by a push-up cover inserted between the package and the drum. Since the push-up cover is inserted between the package and the drum to push up the package, even large packages can be easily lifted from the drum, unlike when the package is pulled up with a cylinder. Then, the package is directly pushed out from above the push-up cover to the rear of the drum by the pushing lever.

[Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a winding unit installed in a double twister unit, which winds yarn Y supplied via a feed roller 2 from a heating unit (not shown) onto a core tube 4 that is rotationally driven by a drum 3. , to form a package P. Although the drum 3 is attached to a common drum shaft 5 horizontally arranged so as to pass through the units arranged in parallel, it may be provided with an independent drive system for each unit.

A cradle arm 6 is attached above the drum 3 via a support shaft 7 so as to be able to freely move up and down. The tip of this cradle arm 6 has a fixed arm piece 6a and a movable arm piece 6b as shown in FIG. installed on. A spring 9 for biasing the movable arm piece 6b in the closing direction is attached to the base end of the movable arm piece 6b, and a cradle lever 10 for opening the movable arm piece 6b is protruded from the tip end of the movable arm piece 6b. .

Behind the drum 3, a belt conveyor 11 for conveying the packages P doffed and discharged is arranged along the units, and each unit has a belt conveyor 11 for conveying the packages P from the drum 3 toward the conveyor 11. A chute 12 is attached.

In addition, in the winding section 1 of each unit, a pusher is inserted into and removed from the drum 3 and a package P that is in contact with the drum 3 due to its own weight, etc., and pushes the package P away from the drum 3. A raised cover 13 is attached. This push-up cover 13 is attached to the drum 3 as shown in FIGS. 1 and 2.
A support frame 14, which is formed of a thin plate slightly larger than the width of the drum 3 and projects downward from both widthwise ends thereof, is rotatably attached to a support shaft 15 disposed at the lower rear side of the drum 3. The push-up cover 13 is formed in a curved shape around a support shaft 15, and rotates around the support shaft 15 to support the drum 3.
When inserted between the package P and the package P from the rear, the drum 3 is formed so as to cover the drum 3 in a non-contact manner. A push-up cover 13 is attached to a lever portion 14a, which is provided at the lower end of the support frame 14 and protrudes radially from the support shaft 15, from a standby position located at the rear of the drum 3, as shown by a solid line in FIG. As shown in 1, t, a cylinder 16 for reciprocating rotational driving is connected to an operating position located between the drum 3 and the package P.The push-up cover 13 is located above the chute 12 in the standby position. , in the operating position, it is in a state in which it is continuous with the chute 12 in front of the chute 12.

A stocker 17 containing the core tube 4 is provided above the unit, and an upper car @ 19 of a robot cart 18 is provided above the stocker 17.
A rail 20 for supporting and guiding the unit is continuously constructed along the unit. In front of the unit is a doffing a for automatically doffing the package P formed by the winding section 1 of each unit.
A robot cart 18 equipped with an im is supported via rails 20 and wheels 19 so as to be freely movable along the unit.

This robot cart 18 includes a cradle operating lever 21 that operates the cradle lever 10 to remove the package P from the cradle arm 6, and a push lever 22 that pushes the package P from above the cover 13 to the rear of the drum 3.
, a core tube supply arm 23 for removing the core tube 4 from the stocker 17 and supplying it to the cradle arm 6 is provided.

As shown in FIGS. 1 and 2, the drive shaft 24 of the push lever 22 and the core tube supply arm 23 are attached to the side of the robot cart 18.
and the drive shaft 2 of the cradle operating lever 21.
6 are arranged in order from the top to the bottom, and these drive shafts 24,
25 and 26 are connected to a drive cam mechanism (not shown). A locking shaft 27 that locks with the cradle lever 10 is provided protruding from the lower end of the cradle operating lever 21 .

The cradle operating lever 21 is rotated upward from the standby position shown by the phantom line in FIG. After pushing up the cover 13 slightly away from the top, the cradle lever 10 is pushed open by the sliding drive of the drive shaft 26' as shown in FIG. When the core tube 4 is not being transported between the holders 8, the cradle lever 10 is closed to grip the core tube 4 and return to the standby position.

The base end of the push lever 22 is formed into an arc shape so as not to interfere with the drive shaft 24 of the core tube supply arm 23, and the tip end is bent at a right angle so as to be almost parallel to the package P so that it does not engage with the bottom surface of the package P. This is a locking portion 28 that locks.

A resin collar 29 is inserted into the locking portion 28 so as not to damage the thread layer surface of the package P. The pushing lever 22 pivots upward from the standby position where it has pivoted downward toward the robot carriage side, almost simultaneously with the cradle operating lever 21, and brings the locking portion 28 into contact with the lower surface of the package P, so that the cradle lever 10 is moved by the cradle operating lever 21. It is set to further rotate upward while supporting the lower surface of the package P removed by the opening operation, push the package P out from above the push-up cover 13 to the rear of the drum 3, and then return to the standby position.

Immediately after the extrusion lever 22 returns to the standby position, the core tube supply arm 23 swings downward from the standby position where it has turned upward toward the robot cart, receives the core tube 4 from the stocker 17, and transfers it between both holders 8 of the cradle arm 6. , the cradle operating lever 21 is set to return to the standby position after the cradle lever 10 is closed.

Next, the operation of the embodiment will be described.

Whether or not the package P has been grooved is detected by, for example, the rotation angle of the cradle arm 6.

When the package P is grooved, the push-up cover 13 is inserted between the package P and the drum 3 which rotates from the standby position by the drive of the cylinder 16, and pushes the package P away from the top of the drum 3. . As a result, the package P is supported on the push-up cover 13 in a state in which rotation is stopped, and is ready for doffing at any time. In this case, the yarn connected from the feed roller 2 to the package P may be cut, and the yarn supplied from the feed roller 2 may be sucked into a suction pipe or the like.

In this way, the push-up cover 13 is inserted between the package P and the drum 3 to push up the package P, so even large packages can be easily lifted from the top of the drum 3, unlike when the package is pulled up with a cylinder. can be turned away.

The unit runs while searching for a unit capable of doffing. For example, when a sensor detects lighting of a doffing possible indicator lamp attached to the unit and stops in front of the unit, the unit starts doffing.

First, the cradle operating lever 21 and the pushing lever 22 turn upward from their respective standby positions toward the unit, and the locking shaft 27 of the cradle operating lever 21 contacts and pushes up the cradle lever 10, and then the cradle lever 1
0 to release the package P from between the movable arm piece 6b and the fixed arm piece 6a. The released package P is supported by the push-up cover 13 and the locking part 28 of the push-out lever 22, and as the push-out lever 22 further moves up and around to the vicinity of the cradle arm 6, the package P is moved from above the push-up cover 13 to the drum. Pushed out to the rear of 3.

The extruded package P is transferred on the chute 12, discharged onto the conveyor 11, and carried out by the conveyor 11. Since the thus released package P is pushed out from above the push-up cover 13 to the rear of the drum 3 by the pushing lever 22 and discharged, even a large package can be easily doffed.

When doffing is completed, the core tube supply arm 23 swings downward from the standby position, receives the core tube 4 from the stocker 17, reaches between both holders 8 of the cradle arm 6, and closes the cradle lever 10 by the cradle operating lever 21. When the core tube 4 is gripped between both holders 8 by operation, the core tube 4 is released and returned to the standby position. The cradle operating lever 21 and the push lever 22 also return to their standby positions, completing the doffing operation and the core tube supply operation. In this case, when holding the core tube 4 between both holders 8, the yarn end of the yarn Y supplied from the feed roller 2 is held and the core tube 4 and one boulder 8 are held together.
The thread caught between the two may be treated.

In the embodiment, the cradle operating lever 21 is set to perform the opening operation after pushing up the cradle lever 10, but the opening operation may be performed directly without pushing up the cradle lever 10. Furthermore, in the embodiments, package doffing in a double twister has been described, but it goes without saying that the present invention can also be applied to doffing in a winder.

[Effects of the Invention] In summary, according to the present invention, the push-up cover is inserted between the package and the drum, the package is pushed up, and the package is pushed out from above the push-up cover to the rear of the dodem by the push-out lever. This makes it easy to doff a large package.

[Brief explanation of drawings]

Fig. 1 is a side view of a package doffing device showing an embodiment of the present invention, Fig. 2 is a plan view of the same main part, Fig. 3 is a front view of a part of the lever, and Fig. 4 is a conventional package doffing device. FIG. 3 is a side view showing the situation. In the figure, 3 is a drum, 13 is a push-up cover 22 is a push-out lever, and P is a puff cage.

Claims (1)

[Claims] 1. In a device for doffing a package formed on a drum to the rear of the drum, a push-up cover is inserted and removed between the drum and the package to separate the package from the drum, and a push-up cover is provided on the push-up cover. A package doffing device characterized by comprising a push lever for pushing out a package backward.