JPH07122178B2 - Steam setter control method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling a steam setter in a bobbin processing system or the like in which a spinning machine and an automatic winder are connected and a bobbin inserted in a tray is circulated for processing. is there.

[0002]

2. Description of the Related Art Generally, when a spinning tube yarn supplied to an automatic winder is a wool yarn or the like, a torque acts on the yarn to be unwound when twisting in a subsequent step. In a bobbin processing system that connects a spinning machine and an automatic winder, a steam setter (see Japanese Patent Laid-Open No. 61-215728) for steaming the spun tube yarn before sending it to the automatic winder is provided to reduce the torque of the yarn. Have been erased.

[0003]

In this bobbin processing system, the steam setter is disposed on the conveying path in the installation space between the spinning machine and the automatic winder, and the steaming time of the spinning tube yarn is sufficient. In order to ensure that the steam setter must be long enough,
There is a problem that the entire bobbin processing system becomes large.

The present applicant has already developed and applied for a new bobbin processing system which solves this problem. However, the present invention proposes a bobbin randomly supplied in the steam setter of the bobbin processing system. It is an object of the present invention to provide a control method that constantly manages the steam processing time.

[0005]

In order to achieve the above object, the steam setter control method of the present invention comprises a plurality of timers, and the rearmost timer is activated by releasing the stopper at the steam setter inlet. Under the condition that the time of the frontmost timer reaches the set time, the stopper at the outlet of the steam setter is released and the storage time of each timer is shifted.

[0006]

[Operation] In the steam setter control method configured as described above, when the stopper at the steam setter inlet is released and a new tray is received in the steam setter, the timer at the rearmost end starts operating. . When the tray advances to the steam setter outlet, if the time of the frontmost timer reaches the set set time, the stopper of the outlet is released and the storage time of each timer is shifted. When the set set time has not been reached, the release of the stopper at the outlet is suspended until that time.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, referring to FIG. 1, a steam setter 1 to be controlled by the present invention will be briefly described.

This steam setter 1 is provided subsequent to a spinning machine for producing a spun-fiber and a spout device for spouting the yarn end of the spun-fiber, and before the automatic winder for rewinding the spun-fiber. Placed in. Introducing, moving and discharging the spinning yarn
It is made by running a round belt in the transfer path 2 extending from the outlet device to the steam setter 1 and passing through the inside to the automatic winder. In addition, the introduction of this spinning yarn,
The movement and discharge are performed in a state where the spun yarn is attached to the tray. The structure of the steam setter 1 is the same as the conventional structure.

At the inlet and outlet of the steam setter 1, there are provided stoppers 3 and 4 which are interlocked with the opening and closing of the sealing device for engaging and disengaging from the tray and cutting out the spun tub yarn one by one. . Further, sensors S1 and S2 for detecting the presence of the tray are provided on the side portions corresponding to the stopper 3 and the stopper 4. When the sensor S1 detects the tray and the steam setter 1 has an empty space, the solenoid So1 operates to open the stopper 3. When the sensor S2 detects the tray, the solenoid So2 for operating the stopper 4 is operated and the tray is cut out on condition that the tray is in the steam setter 1 for the set set time.

The steam processing time of the spun yarn in the steam setter 1 is managed by a plurality of preset timers which constitute the control device 5 composed of a microcomputer. The number of timers is equal to the maximum number of trays accommodated in the steam setter 1. The timer table is as shown in FIG. In FIG. 2, n is the maximum number of trays accommodated in the steam setter 1, and x is the current value of the number of trays in the steam setter 1. The current value x increases by 1 each time the solenoid So1 that operates the stopper 3 is activated. This timer is a kind of storage device, and an appropriate logic circuit is added to a register in which flip-flops are arranged, and the storage time is moved by one each time a shift pulse arrives. In this case, when the time of the frontmost timer reaches a preset set time (about 20 minutes), when the solenoid So2 for operating the stopper 4 is activated to cut out the tray, a shift pulse is issued. Be done.

At the inlet of the steam setter 1, the new spinning tube insertion tray sent from the spinning machine side is prevented from moving by the stopper 3. As shown in the flow chart of FIG. Detects that the tray has entered, and when there is a free space in the steam setter 1, the solenoid So1 operates to open the stopper 3, allowing the tray to move and starting a new timer at the rearmost end. . When the maximum number of trays is accommodated in the steam setter 1, the solenoid So1 is actuated when the empty space is generated, and the same operation is performed.

The tray reaching the outlet of the steam setter 1 is temporarily blocked by the stopper 4,
If the sensor S2 detects the entry of the tray to that position and the time of the frontmost timer reaches the set time t at that time, the solenoid So2 for operating the stopper 4 is actuated and the tray is cut out from there. At the same time, the stored contents of each timer move one by one. The change of the timer table (when x trays are accommodated in the steam setter 1) at that time is as shown in FIG. On the other hand, if the set set time t has not been reached when the sensor S2 detects the entry of the tray, the operation of the solenoid So2 is carried over until the set set time t is reached. The timers T ₁ , T ₂ , ─, T in FIG.
_It goes without saying that the relationship between the current values of _n is t ₁ > t ₂ >-> t _n .

[0013]

Since the present invention is configured as described above, it has the following effects.

That is, the steam treatment time of each bobbin randomly supplied to the steam setter can be kept constant, and the yarn wound on the bobbin can be subjected to the steam treatment without excess or deficiency.

[Brief description of drawings]

FIG. 1 is a schematic view of an apparatus for controlling tray entry and exit to and from a steam setter.

FIG. 2 is a timer table in the steam setter control method of the present invention.

FIG. 3 is a diagram illustrating a change in a timer table when a tray is cut out from a steam setter.

FIG. 4 is a flowchart of the operation at the inlet of the steam setter.

FIG. 5 is a flowchart of the operation at the outlet of the steam setter.

[Explanation of symbols] 1 Steam setter 2 Transfer path 3 Inlet stopper 4 Outlet stopper S1 Inlet sensor S2 Outlet sensor So1 Inlet solenoid for operating stopper So2 Outlet solenoid for operating T Timer (ordered by subscript T) Time stored in the timer (order is indicated by subscript)

Claims (1)

[Claims] 1. A steam setter outlet, provided that a plurality of timers are provided, the timer at the rearmost end is activated by releasing the stopper at the inlet of the steam setter, and the time at the frontmost end timer reaches the set set time. Control method of the steam setter that releases the stopper of the part and shifts the storage time of each timer.