JPH037408Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention is directed to a ring rail lifting device for a ring spinning machine or a ring twisting machine (hereinafter simply referred to as a ring spinning machine), and in particular for returning a counter to zero and quickly adding or subtracting to a predetermined value. The present invention relates to a ring rail lifting device equipped with sequence control.

Prior Art The ring rail lifting device described above performs bunch winding on the lower part of the bobbin when starting to wind the yarn onto the bobbin, and then sequentially ascends the ring rail while performing a building motion. When the yarn is full, the ring rail is rapidly lowered and the bobbin is wound. At the same time, in consideration of machine inertia, the drive circuit of the machine motor is opened at the appropriate time, and winding is performed at the bottom of the bobbin.In order to efficiently perform the above series of operations, modern sequencers or microcomputers are A sequence control method using, etc. is adopted.

Problems that the invention aims to solve: The above-mentioned spinning machine requires regular inspection and maintenance.
Usually 3 to 5 times to make thread splicing easier when restarting.
A method is adopted in which the machine is stopped when the machine is loaded, and after inspection and maintenance, the bobbin is reinstalled and the machine is restarted. At this time, the machine is run idle, so the means for detecting the thread payout amount, such as a counter that converts this into the number of machine revolutions, integrates this amount (however, sequencers generally use a method of subtracting it from the full tube setting value. ). Therefore, when restarting, the counter needs to return to the value at the time of stop. In the case of a conventional mechanical counter, it is possible to easily reset it manually, but in the case of a sequencer, the number of rotations until the tube is full is set using a programming panel, and the number of revolutions until the tube is full is set using a memorized value. cannot be changed unlike ordinary mechanical or electromagnetic counters. Therefore, when stopping, the current value is called up on the programming panel, the remaining number until full is calculated and stored, and when restarting after dry operation, this memorized value is set. After doffing is completed, it is necessary to set the previous value again, which poses problems such as being extremely time-consuming.

In view of this, an object of the present invention is to easily return a progressively input numerical value to the value at the time of stop without changing the numerical value set by the programming panel.

Means for Solving the Problems The present invention for achieving the above object will be explained using drawings corresponding to embodiments. The ring rail lifting device 1 is equipped with a sequencer CPU as a sequence control circuit for detecting when the pipe is full.
This sequencer CPU has a thread payout amount detection means, for example, which detects the thread payout amount from the rotation speed of the machine.
The rotation speed of the machine is based on the rotation speed of the cam roller.
It is provided with a counting circuit 32 which receives a signal from the thread payout amount detection means, a reset circuit 33 which resets the progressive count to the starting point, and a fast-forward circuit 35 which supplies a fast-forward signal to the counting circuit.

The fast-forward circuit 35 includes a pulse generator 40 and a counting drive relay R3 which receives a pulse signal from the generator and applies the pulse signal to the counters 31 and 42 of the counter system 30, thereby causing the counters to add or subtract.

Operation The motor stops during operation and runs idle for inspection and maintenance, thereby applying the number of revolutions to the counting circuit 32 and making it progressive. At the time of resetting, the reset circuit 33 is activated, and when the value is advanced to a predetermined value, the fast forward circuit 35 is activated.
This can be done more quickly.

Embodiment FIG. 1 is a schematic explanatory diagram of a ring rail lifting device of the present invention. This ring rail lifting device 1 has a winding mechanism 4 for lifting belt 3 of ring rail 2.
and a lifting lever 6 that is swung by the heart cam 5. The winding mechanism 4 is the belt 3
The winding drum 10 has a winding drum 10 for winding the winding drum, and a drive shaft 12 connected to the main shaft 11 of the winding drum by appropriate means. The drive shaft 12 has a saper foil 13 fixed to the front, and a drive motor 1 equipped with an electromagnetic brake at the rear end.
Connect 4.

The winding mechanism 4 is further provided with a swinging arm 15 protruding from the lifting lever 6.
5 is associated with a feed pawl 16 that engages with the saper foil 13, and each time the lifting lever 6 swings, the swinging arm 15 is pushed down, and the winding drum 10 is rotated via the saper foil 13 to gradually move the belt 3. Wind it up. The belt 3 is wound around pulleys 17 and 18 attached to the lifting lever 6, and by swinging the lifting lever 6, the belt 3 performs a known building motion on the ring rail 2, and the thread is placed on the bobbin B. form C. In the figure, 7 is a cam roller that faces the heart cam 5 attached to the lifting lever 6. The winding mechanism 4 includes a claw release mechanism (not shown) for the feed claw 16.
When the tube is full, it is activated by an external signal to disengage the feed pawl 16 from the saper foil 13 and allow the winding drum 10 to rotate in reverse. Rapidly descend rail 2. Further, at the beginning of winding, the drive motor 14 is rotated forward and backward at a required number of rotations to perform bunching winding, and then the feed pawl 16 is engaged with the saper foil 13. 20 is heart cam shaft 19
It is a cam switch attached to the cam switch, and is a thread payout detection means that detects the amount of thread payout by converting it into the machine rotation speed, that is, the rotation speed of the heart cam shaft 19,
The output signal from the cam switch 20 is sent to the sequencer (or microcomputer) CPU (hereinafter simply
CPU) counter system 30. This CPU includes a ring rail lifting means AS that performs a series of operations such as removing the feed claw 19, bunching winding, determining full tube timing, and rapidly lowering the ring rail in a preset order, and the counter system 30 and the counter system 30. A programming panel PP for setting the full tube timing, which is equipped with a fast-forward circuit 35 for the counter system 30 and an internal counter 31 in this CPU, and an electromagnetic counter 42 for display.
is connected. An outline of the above-mentioned CPU will be explained based on FIG. 2. The CPU includes an addition relay _R1 activated by the cam switch 20, and a reset relay _R2 activated by a signal from the ring rail lifting means AS. The opening/closing of the cam switch 20 operates the addition relay _R1 , and the counter system 3
Close relay contact γ ₁ for count drive relay R ₃ of 0. Based on this, relay _R3 closes contact γ3a provided in the feed circuit 32 for the internal counter 31 and the drive circuit of the display electromagnetic counter 42,
Each of the counters 31 and 42 is progressively advanced by a pulse signal (however, the internal counter 31 provided on the programming panel PP generally subtracts from the set value sequentially, and when it reaches 0, it issues a full-pipe signal. For simplicity, it will be explained as being progressive like a general counter). The reset circuit 33 of the internal counter 31 has a manual push button.
PB ₂ and relay contact γ ₂ of reset relay R ₂ are provided in parallel. The relay _R4 is a full pipe notification relay, and when the internal counter 31 reaches a set value, the contact 31a is closed, and the relay _R4 gives a full pipe signal to the ring rail lifting means AS. The fast forward circuit 35 includes a manual push button _PB1 , a timer T and a pulse generator 40 which are activated by closing this push button. Pushbutton PB ₁ is type 2a1b with one normally open contact
Pa is provided in the input circuit of the timer T, the other one is provided in parallel with the relay contact γ ₁ for the counting drive relay R ₃ , and the normally closed contact Pb is provided in series with the relay contact γ ₁ .
The pulse generator 40 generally uses one built into the CPU, and the pulse period is preferably
Use one with a pulse rate of about 10 pulses/second. The normally open contact 40a is connected in series with the normally open contact Ta of the timer T, and is provided in parallel with the relay contact _γ1 for the counting drive relay _R3 .

The embodiment of the present invention has the above-mentioned configuration, and the number of rotations of the heart cam 5 until the time when the tube is full is set in advance on the programming panel PP (however, in this embodiment, the amount of yarn fed out is converted to the number of rotations of the heart cam 5). (It goes without saying that when the feeding amount is detected by other detection means such as the rotational speed of the front roller or the Iwata gear, the value is a corresponding value). At the end of bunching winding on the bobbin B and the start of the building movement, a signal from the cam switch 20 accompanying the rotation of the heart cam 5 activates the addition relay _R1 , which then passes through the counting drive relay _R3 to the internal counter 31 and the display electromagnetic counter. Progressive 42. When the pipe is full, the contact 31a of the relay circuit 34 for the full pipe notification relay _R4 is closed, and the relay _R4 gives a signal to the ring rail lifting means AS.
Based on this, the means issues a full pipe operation command such as lowering the ring rail, then activates the reset relay _R2 , and registers the internal counter 3 of the programming panel PP.
1 and the display electromagnetic counter 42 are returned to their old state. However, when inspecting and servicing the machine, it is preferable to stop the machine when the machine is in the 3 to 5 minute range in order to splice the yarn when restarting, etc., as described above. When stopping, the count number at that time is read by the display counter 42. Alternatively, it may be read by the internal counter 31 of the programming panel PP. After that, normal inspection and maintenance work begins, and after dry running, the removed bobbins are installed. However, due to idle running, the internal counter 31 and the display counter 42 are each incremented, and when starting the engine, it is necessary to return them to the values at the time of stop. The details will be explained below.

The display counter 42 and the internal counter 31 press the reset push button _PB2 , and the reset circuit 33,
It is reset by closing 37. Next, push button PB ₁ of the fast forward circuit 35 is pressed. One ON/OFF of this push button PB ₁ applies a pulse signal to the counting drive relay R ₃ , applies one pulse to the internal counter 31 and the display electromagnetic counter 42, and
This is activated by continuously pressing the push button PB and continuously energizing the timer T for a predetermined period of time, thereby closing the contact Ta of the continuous pulse applying circuit 41 to the counting drive relay _R3 . This circuit 41
is equipped with a contact 40a of a pulse generator 40, which opens and closes at high speed, and drives the relay by counting continuous pulses.
Apply to R ₃ . As a result, the relay _R3 opens and closes the two contacts γ3a and γ3a at high speed, causing the internal counter 31 and the display counter 42 to advance at high speed. When each value approaches the stop value, release push button PB ₁ to stop high-speed progression. After that, push button PB ₁ is turned ON and OFF to advance sequentially until the predetermined value is reached.
Repeat. After that, resume driving.

Effects of the invention According to the invention, even if the spinning machine is stopped in the middle of operation under sequence control and the number of revolutions during idle operation is input for inspection and maintenance, the yarn reeling-out amount detecting means returns to the stored value at the time of stoppage, and
The return can be carried out quickly and easily, and therefore there is no need to change the pre-installed set values until the pipe is full, and the work efficiency can be improved.

[Brief explanation of the drawing]

FIG. 1 is an overall explanatory diagram of the ring rail lifting device of the present invention, and FIG. 2 is a sequence control circuit diagram for detecting full pipe timing. 1 is a ring rail lifting device, 30 is a counter system, 31 is an internal counter, 32 is a sending circuit,
33 is a reset circuit, 35 is a fast-forward circuit, 40 is a pulse generation circuit, and 42 is a display counter.

Claims (1)

[Scope of utility model registration request] In the ring rail lifting device equipped with a sequence control circuit, the sequence control circuit is equipped with a counter system that applies a count signal from the thread payout detection means, and this counter system includes a counting circuit that receives the signal and a counter reset circuit. The ring precision ring is characterized in that it is equipped with a fast-forward circuit that adds and subtracts the counting circuit at high speed, and that the fast-forward circuit is equipped with a pulse generator and a counting drive relay that applies a pulse signal to the counter of the counter system, thereby causing the addition and subtraction. Ring rail lifting device for spinning machines.